0797-8220752
您現在所在位置:首頁 > INFORMATION > Basic content of elevator shaft measurement

Basic content of elevator shaft measurement

發布時:2024-06-12   來源:江西天虹機電有限公司   閱讀:832

Basic content of elevator shaft measurement

1、 Basic content of elevator shaft measurement


1. Shaft width: Facing the elevator hall door, measure the clearance size between the walls on both sides of the shaft. Depth of shaft: The clearance dimension between the inner wall of the hall entrance and the back wall of the shaft. The width and depth of the shaft should be measured for each layer to prevent excessive vertical deviation of the shaft. Use a slender wooden rod to probe into the inner wall of the shaft from the entrance of the hall door, and then pull out the wooden rod to measure the length of the penetrated part with a ruler. A steel tape measure is sufficient for measuring the width of the shaft. If the depth of the shaft is not large, a steel tape measure can also be directly used to probe into the shaft for measurement. Note that some shaft walls are designed to be thick at the bottom and thin at the top, resulting in narrow at the bottom and wide at the top.


2. Entrance: Measure the width and height of the door opening, as well as the position and size of the call hole. Also, measure the width of the left and right wall stacks to determine whether the center of the entrance is located at the center of the shaft and how much deviation it has. Survey the reinforced concrete lintel above the door opening, generally requiring a height of 300mm equal to the thickness of the wall and the width of the shaft, for the installation of the landing door device. There must be reinforced concrete beams below each floor's door opening to install the hall door sill device, and any cow legs must be recorded. The height of the opening at the entrance is generally: from the completion of the decoration on the ground, the net height of the elevator door opening+100mm


3. Floor height: Measure the vertical distance between the finished floors of adjacent floors at the entrance of the hall. A wooden pole can be used to measure the net size from the lower skin of the previous floor slab to the ground of the foot station in sections, and the sum of the dimensions plus the thickness of the floor slab is the height of that floor. The floor height can also be measured at the entrances and exits of stairs at the same height as the hall door.


4. Top height: The net size between the completed ground of the top decoration and the lower skin of the shaft top plate.


5. Pit depth: The depth from the finished floor of the lower floor decoration to the bottom of the pit. Pay attention to observing whether there are any building foundations or other structures protruding into the shaft in the pit. If there are any, their dimensions must be measured and recorded.


6. Wall structure: Brick concrete structure shafts must be surveyed for the presence of ring beams. If there are any, the center spacing of the ring beams must be recorded (generally requiring a height of 300mm, up to 200mm). If there are embedded parts, the size and spacing of the embedded parts must be recorded. Note that in many cases, if the shaft is not designed according to the manufacturer's drawings you represent, there may be deviations in the position of the embedded parts. The elevator shaft of the rear counterweight must be equipped with beams (or embedded parts) on three sides, while the elevator shaft of the side counterweight only needs to be equipped with beams (or embedded parts) on the left and right sides. Also, pay attention to whether there are protruding pillars at the four corners of the shaft, and whether there are protruding beams and other structures on the inner wall of the shaft, and keep records. The position of the embedded parts is determined by the elevator manufacturer based on the welding and fixing position between the guide rail bracket and the shaft wall. The embedded parts are generally made of 12-16mm thick steel plates.


7. Machine room: Measure the plane length and width dimensions of the machine room, mark the relative position between the machine room and the shaft, the height of the lifting platform (if any), the height between the lower edge of the hook and the upper surface of the shaft roof, the position and size of the machine room door, and record the presence or absence of a support platform. Whether the computer room has a high platform and its height size determine the length of the wiring box and the configuration of the emergency stop switch when the factory ships. Additionally, attention should be paid to the distance between the machine beam support platforms (usually equal to the width or depth of the shaft) to avoid shortening the machine beams when the factory ships them.


 


2、 Handling of general civil engineering issues in elevator shafts


1. If the shaft is too large or too small: When the distance between the inner walls on both sides of the elevator shaft and the centerline of the hall door, and the depth of the shaft is within 200mm of the standard layout drawing, it is possible to install the elevator without changing the civil engineering, but the actual size should be indicated on the drawing for the manufacturer to extend the guide rail support accordingly. If the width or depth of the shaft is too large, remedial measures such as adding steel beams should be taken, or the manufacturer's design personnel should be consulted whether it is possible to use the method of lengthening and strengthening the support bracket. The standard civil engineering layout drawings provided by elevator manufacturers are generally in small sizes to save building area and improve product adaptability. Therefore, if the shaft is smaller than the standard size, the factory should be consulted. Special attention should be paid to the civil deviation of high-rise buildings. The vertical deviation of the inner wall of the shaft on one side of the hall door should be ensured to be within 0~+25mm, and the vertical deviation of the inner wall of the other three shafts should be ensured to be within 0~+50mm.


2. There are pillars at the four corners of the shaft: If there are pillars protruding from one corner on the left and right sides of the shaft, it should not exceed 200mm x 200mm, which generally does not affect the installation of the elevator. But if there are protruding pillars at the corners of the shaft on both sides of the hall door, it is not allowed within the standard shaft width range. In building structures, columns are sometimes thicker at the bottom and thinner at the top, so special attention should be paid to the bottom layer.


3. Insufficient top height (oh): In this case, the machine room shaft should be partially raised to meet the standard size of the top height, that is, "lifting the kang". After lifting the kang, the distance from the upper surface of the shaft top plate to the lower edge of the lifting hook must meet the installation space requirements of the traction machine, generally greater than 2200mm. If the height of the "kang" is greater than or equal to 500mm, the user must install a high platform guardrail and climb the elevator (sometimes the user may also entrust the elevator manufacturer to do so).


4. Pit too deep or too shallow: If the pit is too deep, it must be backfilled to the standard depth or a depth within 100mm greater than the standard depth. If the pit is too shallow, the user should first be advised to dig deep to the standard depth, then consider raising the ground height of the first floor, that is, raising the slope or platform at the entrance of the first floor hall, and then consider reducing the elevator speed.


5. If there are protruding structures such as building foundations in the pit, they must be measured truthfully, and the elevator manufacturer must calculate and make equipment or civil engineering rectification plans. If it is necessary to damage the foundation structure, it must be approved by the building design department.


6. Space below the pit that can be reached by anyone: In this case, it is recommended that the user first close the space below the shaft. Otherwise, the load on the shaft bottom plate must be designed at 5000 n/m2 or more, and solid pile piers extending all the way to a solid ground must be installed in areas below the counterweight. According to the national standard, this situation can also be solved by installing counterweight safety clamps, but generally elevator manufacturers will not easily accept it because installing counterweight safety clamps will make the mechanical structure of the elevator more complex and the price will also increase significantly.


7. Brick concrete structure hall entrance problem: If there is only a small section of lintel above the entrance, which cannot meet the installation requirements of elevator hall doors, users need to make two steel splints above the entrance. The position and size of the clamp plate are determined by the manufacturer based on the selected door machine model.


8. Brick concrete structure elevator shaft: For unfinished brick structure shafts, users can be required to make a circle of beams at a certain height, arranged on three sides, and disconnected on one side of the elevator entrance. The height spacing between the beam centers depends on the manufacturer's product model, and should not exceed 2500mm at most. The beam height should be 300mm, and it should be the same thickness as the wall. The lowest ring beam is 500-1500mm away from the bottom of the pit, and the highest ring beam is 200-500mm away from the lower surface of the shaft top plate. The completed framework with solid brick structure shaft can be equipped with steel clamps at the position of the fixed guide rail support frame. The position and size of the clamps are provided by the elevator manufacturer, and the user is responsible for providing materials and construction. If the shaft structure is made of hollow bricks without ring beams, steel beams can be considered to be added between the frames for rectification.


9. Multiple elevator shafts can be connected, and an 18-20 # I-shaped steel beam can be fixed at a certain height between each adjacent elevator shaft, with the same position as the ring beam. The pit must be equipped with an isolation net and raised 2500mm above the ground level.


10. Requirements for the inner wall of the shaft: The inner wall of the shaft should not be plastered, which is beneficial for reducing noise, but there should be no foreign objects protruding.


11. Power supply for the computer room: The power supply should be three-phase 380V, 50Hz, and the lighting power supply should be single-phase 220V, 50Hz. The power supply should be connected to the vicinity of the computer room entrance and equipped with an inlet socket.


 


3、 Several Methods of Well Measurement under Different Field Conditions


1) Elevator shaft in new construction projects: When the architectural design is not yet completed, the salesperson only needs to provide the user with the standard elevator layout diagram of the required elevator specifications, and the user can entrust the design department to design the elevator shaft. When the architectural design has been completed, but the site has not yet been constructed, is under construction, or has been completed, the manufacturer must produce drawings based on the current construction drawings or measured dimensions. If it is necessary to modify the original civil design of the shaft, the user should entrust the architectural design department to make modifications to the shaft design based on the layout drawings provided by the elevator manufacturer.


2) The shaft for updating the old elevator: The measurement method for the shaft that has been removed from the old elevator is the same as for the shaft that has just been constructed. When the old elevator has not been dismantled, try to obtain relevant data outside the shaft, such as the size of the machine room, floor height, and net size of the door opening. When the old elevator has not been dismantled, there are two situations: a. When the old elevator can be started: in this case, the measurement shaft must be cooperated with the elevator technician! And be sure to pay attention to safety! The elevator technician opens the hall door on the first floor, initiates maintenance operations, and drives the car to the second floor or above. The measurement personnel measure the pit data on the first floor, paying attention to recording the pit size and the structure of the first floor shaft wall, such as whether the hall door is centered, whether there are cow legs, whether there are special structures on the shaft wall, the spacing between ring beams, and the position of embedded parts. Then the measurement personnel will go to the entrance of the second floor hall, and the elevator will stop at a maintenance speed when the car roof is slightly lower than the sill of the second floor hall. The elevator technician will open the hall door from inside the shaft, measure and observe the second floor of the shaft, and then measure layer by layer to the top floor using this method. b. When the old elevator cannot be started: due to the inability to enter the shaft, limited data can only be obtained from the outside of the shaft to determine whether it is non-standard (if there is a high platform in the machine room, the plane size of the shaft can be measured in the machine room, but it is not accurate enough) for elevator quotation negotiation reference. In this case, the contract should state that the shaft rectification and cost are the responsibility of the user. For uncertain shaft structures and dimensions, users should be reminded to provide them to the elevator manufacturer or notify the elevator manufacturer to measure them before the old elevator is dismantled or the new elevator is put into operation.


3) Elevator shafts that create something out of nothing: This type of situation is often seen in old buildings or newly built buildings where users change their minds and request the installation of elevators inside or outside the building. The salesperson first conducts a preliminary inspection to see if the site has the space required for the shaft and machine room. Then, the user provides the standard elevator layout plan with the required specifications as design conditions to the architectural design department. The architectural design department analyzes the depth of the pit, top floor height, reaction force, etc. on site based on the elevator layout plan to determine whether they can meet the elevator installation requirements, as well as which building structures need to be damaged (such as smashing stairs or floors), and formulates a renovation construction plan. If it is indeed necessary to change the elevator structure (such as car size, door opening width, etc.) due to limitations in civil engineering conditions, the elevator manufacturer will consider the non-standard design of the elevator.


 


4、 Basic content of escalator shaft measurement


1. Measure the lifting height. Strictly speaking, the lifting height of the escalator is the vertical distance between the finished floor of the upper and lower support beams, which is the same as the height of the straight ladder. When using the suspension line method to measure, attention should be paid to whether there is a drop between the positioning point of the plumb line and the decoration surface of the lower support beam of the escalator.


2. Measure the beam edge distance between the upper and lower support beams. The measurement method is to suspend the line from the upper support point to the ground for positioning, and then measure the horizontal distance from the positioning point to the edge of the lower support beam.


3. The effective support width of the upper and lower support beams should be greater than the width of the escalator truss, and there should be embedded steel plates.


4. Measure the length, width, and depth of the pit (if any), and observe whether there are grooves and embedded parts at the support beam.


5. Note that there should be a space of 350mm or more on both sides of the escalator, and when arranged in parallel, there should be no restriction between the two escalators.


6. It is necessary to implement the arrangement of escalators and provide feedback to the manufacturer, so that the manufacturer can determine the configuration of certain shared devices, the order of shipment, and the alignment of handrail turns during continuous arrangement.


7. For escalators that require intermediate support, it is necessary to determine whether the site has the conditions for adding support, as well as the range of support that can be added. The specific location and parameters such as the height and load size of the support platform should be determined by the manufacturer.


 


5、 Handling of general civil engineering issues on escalator sites


1. Excessive distance between beam edges: In this case, the actual dimensions of civil engineering can be met by increasing the length of the upper and lower platforms of the escalator. One side platform can be extended, or both sides can be extended simultaneously. The total extension of the upper and lower platforms should generally not exceed 1000mm. When extending the platform, attention should be paid to the length of the pit or the opening of the floor slab, which should also be extended at the same time. After the escalator is extended, the force on the upper and lower support points will also increase. If the edge distance of the beam increases too long, support needs to be added in the middle of the escalator truss. In addition, changing the angle of the escalator from 35 degrees to 30 degrees can also increase the distance between the beam edges.


2. The beam edge distance is too small: The total length of the escalator is shortened by shortening the lower platform, but the range of shortening is limited, generally not exceeding 200mm. Generally, the platform cannot be shortened as it includes control cabinets and motors. Changing the angle of the escalator from 30 degrees to 35 degrees can also shorten the beam edge distance.


3. There is a beam or other obstacle directly above the escalator: Can the beam or other obstacle be judged by the following formula (in mm): (length of the opening -50- length of the upper platform) 732 or 1.428- beam height ≥ 2300, where: the length of the opening and beam height (including decoration thickness) are measured on-site or provided by the user; 50 is the gap between the escalator truss and the upper support beam edge (some manufacturers have a value of 40); The constant 1.428 is used for a 35 degree escalator; 1.732 for 30 degree escalators; The length of the platform shall be determined according to the manufacturer's standard layout diagram; 2300 is the minimum height specified by the national standard. Note: The inclination angle of shopping mall escalators is generally not allowed to exceed 30 degrees.


4. Insufficient transportation channels, doorway height, or turning space inside the building: In this case, if the civil engineering cannot be modified, the escalator must be transported in sections (usually divided into 2 sections) when leaving the factory, and it should be noted when signing the sales contract. The overall truss cannot be segmented after leaving the factory, and the escalator equipment is not allowed to be transported horizontally.


5. Power supply setting for escalators: three-phase 380V, 50Hz should be led to the exit of the escalator.


6. Measurement of moving sidewalks: The method is basically similar to that of escalators, measured according to the manufacturer's standard layout diagram.


 


6、 Preparation before on-site measurement


1. Appointment: Before going to the construction site, it is necessary to schedule a time with the user or construction unit, which can provide good cooperation on site. If there are lifting equipment on site, the machine room and top floor can be measured first to save energy.


2. Clothing: If the building is under construction, try not to wear sandals when entering the construction site. The soles of the shoes should not be too hard or too soft to prevent sprains or punctures. Try to wear long sleeved tops and pants as much as possible to avoid scratching your skin with building materials. You should also borrow a safety helmet from the construction unit to wear.


3. Measurement tools: It may be inconvenient to borrow them on site, so try to bring them yourself. Generally, a 5-meter steel tape measure is required for measuring straight ladders, and a 20 meter leather tape measure is required for escalators. If the on-site lighting is dim, a flashlight is essential. Large construction sites should try to bring their own compass to avoid getting lost in the building or complex (the total price of the above tools does not exceed 40 yuan). Climbing high-rise stairs consumes a lot of physical energy, so you can bring a bottle of water. Don't forget to bring paper and pen!


4. Cooperation: Try to have someone to cooperate with when measuring the shaft, especially when it is inconvenient to measure the escalator shaft alone. You can take a colleague or ask the user to send someone to cooperate.


5. Understanding the site: Before measurement, it is necessary to consult with the technical personnel of the user or construction unit to understand the situation on site, in order to prepare tools purposefully and focus on measuring special structures. For large-scale projects with a large land area, a large number of elevators, and scattered shafts, users can request a general layout plan or draw a sketch of elevator location distribution before entering the site, in order to smoothly find the position of each shaft.


 


7、 Other matters


1. For civil engineering structures that cannot be determined temporarily and data that cannot be measured (such as debris or water accumulation in the shaft) that cannot be estimated or guessed, users should be reminded to notify the manufacturer in a timely manner after the data is confirmed, or to measure again after the measurement conditions are available on site.


2. The engineering contact person and phone number of the user or construction unit should be recorded, so that the manufacturer's design personnel can directly contact the on-site technical personnel in case of technical problems.


3. The measurement and confirmation of civil engineering parameters of the shaft should be accurately implemented before the contract is signed, in order to avoid discovering that the actual situation of the shaft does not match the contract specifications or drawings, resulting in costs due to shaft rectification or elevator specification changes, which may cause disputes with users. This is generally detrimental to elevator manufacturers.


4. After the contract is signed, sales personnel should also pay attention to tracking the progress of the project. If any changes are found in the design or construction, or if the project is delayed, they should promptly request the user to make contract changes to avoid disputes in the future.


5. For special types of elevators such as sightseeing elevators, inorganic room elevators, hydraulic elevators, and car elevators, there is a significant difference in the size of each manufacturer's shaft. The confirmation of civil engineering should be based on the manufacturer's layout plan, but the principle is the same.


6. The reference standards for civil engineering design of escalator shafts are GB 7588-2003 "Safety Code for Elevator Manufacturing and Installation" and GB 16899-1997 "Safety Code for Manufacturing and Installation of Escalators and Moving Walkways". The specific conditions and data should be based on the layout drawings of each manufacturer.


 


8、 Elevator shaft size table


500KG cargo elevator single channel parameters National standard area 1.38 ㎡ Car net size 1.10m x 1.15m x 2.2m Door net size 900mm x 2100mm Traction machine power 7.5kw Shaft size 2.00m x 1.75m Pit depth 1400mm Top floor height 4500mm Machine room height 3000mm


 


500KG cargo elevator, cargo elevator, dual channel parameters, national standard area 1.38 ㎡, net size of elevator car 1.11m x 1.10m x 2.2m, net size of door opening 900mm x 2100mm, traction machine power 7.5wk, shaft size 2.00m x 1.87m, pit depth 1400mm, top height 4500mm, machine room height 3000mm


 


1000KG cargo elevator single channel parameters National standard area 2.4 ㎡ Car net size 1.41m x 1.60m x 2.2m Door net size 1100mm x 2100mm Traction machine power 7.5kw Shaft size 2.30m x 2.20m Pit depth 1400mm Top floor height 4500mm Machine room height 3000mm


 


1000KG cargo elevator, cargo elevator, dual channel parameters, national standard area 2.4 ㎡, net size of car 1.41m x 1.55m x 2.2m, net size of door opening 1100mm x 2100mm, traction machine power 7.5kw, shaft size 2.30m x 2.32m, pit depth 1400mm, top height 4500mm, machine room height 3000mm


 


1600KG cargo elevator single channel parameters National standard area 3.56 ㎡ Car net size 1.91m x 1.75m x 2.2m Door net size 1500mm x 2100mm Traction machine power 11kw Shaft size 2.80m x 2.35m Pit depth 1400mm Top floor height 4500mm Machine room height 3000mm


 


1600KG cargo elevator, cargo elevator, dual channel parameters, national standard area 3.56 ㎡, net size of elevator car 1.91m x 1.70m x 2.2m, net size of door opening 1500mm x 2100mm, traction machine power 11kw, shaft size 2.80m x 2.47m, pit depth 1400mm, top height 4500mm, machine room height 3000mm


 


2000KG cargo elevator single channel parameters National standard area 4.2 ㎡ Car net size 1.91m x 2.10m x 2.2m Door net size 1500mm x 2100mm Traction machine power 11kw Shaft size 2.80m x 2.70m Pit depth 1400mm Top floor height 4500mm Machine room height 3000mm


 


2000KG cargo elevator, cargo elevator, dual channel parameters, national standard area 4.2 ㎡, net size of car 1.91m x 2.05m x 2.2m, net size of door opening 1500mm x 2100mm, traction machine power 11kw, shaft size 2.80m x 2.82m, pit depth 1400mm, top height 4500mm, machine room height 3000mm


 


3000KG cargo elevator, single channel parameters, national standard area 5.8 ㎡, net size of elevator car 2.41m x 2.25m x 2.2m, net size of door opening 1800mm x 2100mm, traction machine power 15kw, shaft size 3.45m x 2.85m, pit depth 1600mm, top height 4600mm, machine room height 3000mm


 


3000KG cargo elevator, cargo elevator, dual channel parameters, national standard area 5.8 ㎡, net size of car 2.41m x 2.25m x 2.2m, net size of door opening 1800mm x 2100mm, traction machine power 15kw, shaft size 3.45m x 3.02m, pit depth 1600mm, top height 4600mm, machine room height 3000mm


 


5000KG cargo elevator, single channel parameters, national standard area 9.0 ㎡, net size of elevator car 2.41m x 3.55m x 2.5m, net size of door opening 1800mm x 2100mm, traction machine power 22kw, shaft size 3.56m x 4.15m, pit depth 1600mm, top height 4600mm, machine room height 3000mm


 


5000KG cargo elevator, cargo elevator, dual channel parameters, national standard area 9.0 ㎡, net size of elevator car 2.41m x 3.50m x 2.5m, net size of door opening 1800mm x 2100mm, traction machine power 22kw, shaft size 3.56m x 4.27m, pit depth 1600mm, top height 4600mm, machine room height 3000mm


 


3000KG Car Elevator Dual Channel Parameters National Standard Area 15 ㎡ Car Net Size 2.51m x 5.10m x 2.5m Door Net Size 2400mm x 2400mm Traction Machine Power 22kw Shaft Size 4.00m x 5.86m Pit Depth 1600mm Top Floor Height 4800mm Machine Room Height 3000mm


 


5000KG Car Elevator Dual Channel Parameters National Standard Area 25 ㎡ Car Net Size 2.91m x 5.60m x 2.5m Door Net Size 2400mm x 2400mm Tractor Power 22kw Shaft Size 4.36m x 6.38m Pit Depth 1600mm Top Floor Height 4800mm Machine Room Height 3000mm


 


A 320KG residential elevator carrying 4 people, with a national standard area of 0.97 ㎡. The net size of the elevator car is 1.13m x 0.92m x 2.2m, and the net size of the door is 700mm x 2000mm. The power of the traction machine is 2.5kw. The shaft size is 1.70m x 1.60m, and the pit depth is 1400mm. The top floor height is 3800mm, and the machine room height is 2500mm


 


A 400KG residential elevator carrying 5 people, with a national standard area of 1.17 square meters. The net size of the elevator car is 1.13m x 1.02m x 2.2m, and the net size of the door is 700mm x 2000mm. The power of the traction machine is 3.3kw. The shaft size is 1.70m x 1.70m, and the pit depth is 1400mm. The top floor height is 3800mm, and the machine room height is 2500mm


 


630KG residential elevator carrying 8 people, with a national standard area of 1.66 ㎡. The net size of the car is 1.23m x 1.22m x 2.2m, and the net size of the door is 800mm x 2000mm. The traction machine has a power of 4.5kw. The shaft size is 1.80m x 1.95m, and the pit depth is 1400mm. The top floor height is 3800mm, and the machine room height is 2500mm


 


800KG residential elevator carrying 10 people, national standard area 2.00 ㎡, net size of elevator car 1.43m x 1.42m x 2.3m, net size of door opening 800mm x 2000mm, traction machine power 5.5kw, shaft size 1.85m x 2.00m, pit depth 1400mm, top height 4500mm, machine room height 3000mm


 


1000KG residential elevator carrying 13 people, with a national standard area of 2.4 ㎡. The net size of the elevator car is 1.7m x 1.42m x 2.3m, and the net size of the door is 900mm x 2000mm. The power of the traction machine is 6.7kw. The shaft size is 2.15m x 2.20m, and the pit depth is 1400mm. The top floor height is 4500mm, and the machine room height is 3000mm


 


1600KG residential elevator carrying 21 people, with a national standard area of 3.56 square meters. The net size of the elevator car is 1.93m x 1.82m x 2.3m, and the net size of the door is 1100mm x 2000mm. The power of the traction machine is 18.5kw. The shaft size is 2.50m x 2.55m, and the pit depth is 1400mm. The top floor height is 4500mm, and the machine room height is 3000mm


 


800KG sightseeing elevator carrying 10 people, with a national standard area of 2.00 ㎡. The net size of the car is 1.25m x 1.64m x 2.3m, and the net size of the door is 800mm x 2000mm. The traction machine has a power of 5.5kw. The shaft size is 2.35m x 2.18m, and the pit depth is 2000mm. The top floor height is 5000mm, and the machine room height is 3000mm


 


A 1000KG sightseeing elevator carrying 13 people, with a national standard area of 2.4 square meters. The net size of the car is 1.35m x 1.84m x 2.3m, and the net size of the door is 900mm x 2000mm. The power of the traction machine is 6kw. The shaft size is 2.60m x 2.38m, and the pit depth is 2000mm. The top floor height is 5000mm, and the machine room height is 3000mm


 


1600KG sightseeing elevator carrying 21 people, with a national standard area of 3.56 square meters. The net size of the car is 1.60m x 2.34m x 2.3m, and the net size of the door is 1100mm x 2000mm. The traction machine has a power of 17.5kw. The shaft size is 2.50m x 2.55m, and the pit depth is 2000mm. The top floor height is 5200mm, and the machine room height is 3000mm


 


1600KG hospital bed elevator single channel national standard area 3.56 ㎡, net size of elevator car 1.43m x 2.35m x 2.3m, net size of door opening 1200mm x 2100mm, traction machine power 19kw, shaft size 2.40m x 2.95m, pit depth 1600mm, top height 4500mm


 


1600KG hospital bed elevator dual channel national standard area 3.56 ㎡, net size of elevator car 1.43m x 2.20m x 2.3m, net size of door opening 1200mm x 2100mm, power 19KW, shaft size 2.40m x 2.96m, pit depth 1600mm, top height 4500mm, machine room height 3000mm



 



?

版權所有?江西天虹機電有限公司  聯系人:19917177918  黃女士 座機:0797-8220752

QQ:2993817878  地址:江西省贛州市經濟技術開發區坪峰嶺路19-4號 技術支持:江西華邦LOGO白色.png

備案號:贛ICP備18014169號-1

掃碼打開手網

掃碼關注官方微信

?

Basic content of elevator shaft measurement

2024-06-12

Basic content of elevator shaft measurement

1、 Basic content of elevator shaft measurement


1. Shaft width: Facing the elevator hall door, measure the clearance size between the walls on both sides of the shaft. Depth of shaft: The clearance dimension between the inner wall of the hall entrance and the back wall of the shaft. The width and depth of the shaft should be measured for each layer to prevent excessive vertical deviation of the shaft. Use a slender wooden rod to probe into the inner wall of the shaft from the entrance of the hall door, and then pull out the wooden rod to measure the length of the penetrated part with a ruler. A steel tape measure is sufficient for measuring the width of the shaft. If the depth of the shaft is not large, a steel tape measure can also be directly used to probe into the shaft for measurement. Note that some shaft walls are designed to be thick at the bottom and thin at the top, resulting in narrow at the bottom and wide at the top.


2. Entrance: Measure the width and height of the door opening, as well as the position and size of the call hole. Also, measure the width of the left and right wall stacks to determine whether the center of the entrance is located at the center of the shaft and how much deviation it has. Survey the reinforced concrete lintel above the door opening, generally requiring a height of 300mm equal to the thickness of the wall and the width of the shaft, for the installation of the landing door device. There must be reinforced concrete beams below each floor's door opening to install the hall door sill device, and any cow legs must be recorded. The height of the opening at the entrance is generally: from the completion of the decoration on the ground, the net height of the elevator door opening+100mm


3. Floor height: Measure the vertical distance between the finished floors of adjacent floors at the entrance of the hall. A wooden pole can be used to measure the net size from the lower skin of the previous floor slab to the ground of the foot station in sections, and the sum of the dimensions plus the thickness of the floor slab is the height of that floor. The floor height can also be measured at the entrances and exits of stairs at the same height as the hall door.


4. Top height: The net size between the completed ground of the top decoration and the lower skin of the shaft top plate.


5. Pit depth: The depth from the finished floor of the lower floor decoration to the bottom of the pit. Pay attention to observing whether there are any building foundations or other structures protruding into the shaft in the pit. If there are any, their dimensions must be measured and recorded.


6. Wall structure: Brick concrete structure shafts must be surveyed for the presence of ring beams. If there are any, the center spacing of the ring beams must be recorded (generally requiring a height of 300mm, up to 200mm). If there are embedded parts, the size and spacing of the embedded parts must be recorded. Note that in many cases, if the shaft is not designed according to the manufacturer's drawings you represent, there may be deviations in the position of the embedded parts. The elevator shaft of the rear counterweight must be equipped with beams (or embedded parts) on three sides, while the elevator shaft of the side counterweight only needs to be equipped with beams (or embedded parts) on the left and right sides. Also, pay attention to whether there are protruding pillars at the four corners of the shaft, and whether there are protruding beams and other structures on the inner wall of the shaft, and keep records. The position of the embedded parts is determined by the elevator manufacturer based on the welding and fixing position between the guide rail bracket and the shaft wall. The embedded parts are generally made of 12-16mm thick steel plates.


7. Machine room: Measure the plane length and width dimensions of the machine room, mark the relative position between the machine room and the shaft, the height of the lifting platform (if any), the height between the lower edge of the hook and the upper surface of the shaft roof, the position and size of the machine room door, and record the presence or absence of a support platform. Whether the computer room has a high platform and its height size determine the length of the wiring box and the configuration of the emergency stop switch when the factory ships. Additionally, attention should be paid to the distance between the machine beam support platforms (usually equal to the width or depth of the shaft) to avoid shortening the machine beams when the factory ships them.


 


2、 Handling of general civil engineering issues in elevator shafts


1. If the shaft is too large or too small: When the distance between the inner walls on both sides of the elevator shaft and the centerline of the hall door, and the depth of the shaft is within 200mm of the standard layout drawing, it is possible to install the elevator without changing the civil engineering, but the actual size should be indicated on the drawing for the manufacturer to extend the guide rail support accordingly. If the width or depth of the shaft is too large, remedial measures such as adding steel beams should be taken, or the manufacturer's design personnel should be consulted whether it is possible to use the method of lengthening and strengthening the support bracket. The standard civil engineering layout drawings provided by elevator manufacturers are generally in small sizes to save building area and improve product adaptability. Therefore, if the shaft is smaller than the standard size, the factory should be consulted. Special attention should be paid to the civil deviation of high-rise buildings. The vertical deviation of the inner wall of the shaft on one side of the hall door should be ensured to be within 0~+25mm, and the vertical deviation of the inner wall of the other three shafts should be ensured to be within 0~+50mm.


2. There are pillars at the four corners of the shaft: If there are pillars protruding from one corner on the left and right sides of the shaft, it should not exceed 200mm x 200mm, which generally does not affect the installation of the elevator. But if there are protruding pillars at the corners of the shaft on both sides of the hall door, it is not allowed within the standard shaft width range. In building structures, columns are sometimes thicker at the bottom and thinner at the top, so special attention should be paid to the bottom layer.


3. Insufficient top height (oh): In this case, the machine room shaft should be partially raised to meet the standard size of the top height, that is, "lifting the kang". After lifting the kang, the distance from the upper surface of the shaft top plate to the lower edge of the lifting hook must meet the installation space requirements of the traction machine, generally greater than 2200mm. If the height of the "kang" is greater than or equal to 500mm, the user must install a high platform guardrail and climb the elevator (sometimes the user may also entrust the elevator manufacturer to do so).


4. Pit too deep or too shallow: If the pit is too deep, it must be backfilled to the standard depth or a depth within 100mm greater than the standard depth. If the pit is too shallow, the user should first be advised to dig deep to the standard depth, then consider raising the ground height of the first floor, that is, raising the slope or platform at the entrance of the first floor hall, and then consider reducing the elevator speed.


5. If there are protruding structures such as building foundations in the pit, they must be measured truthfully, and the elevator manufacturer must calculate and make equipment or civil engineering rectification plans. If it is necessary to damage the foundation structure, it must be approved by the building design department.


6. Space below the pit that can be reached by anyone: In this case, it is recommended that the user first close the space below the shaft. Otherwise, the load on the shaft bottom plate must be designed at 5000 n/m2 or more, and solid pile piers extending all the way to a solid ground must be installed in areas below the counterweight. According to the national standard, this situation can also be solved by installing counterweight safety clamps, but generally elevator manufacturers will not easily accept it because installing counterweight safety clamps will make the mechanical structure of the elevator more complex and the price will also increase significantly.


7. Brick concrete structure hall entrance problem: If there is only a small section of lintel above the entrance, which cannot meet the installation requirements of elevator hall doors, users need to make two steel splints above the entrance. The position and size of the clamp plate are determined by the manufacturer based on the selected door machine model.


8. Brick concrete structure elevator shaft: For unfinished brick structure shafts, users can be required to make a circle of beams at a certain height, arranged on three sides, and disconnected on one side of the elevator entrance. The height spacing between the beam centers depends on the manufacturer's product model, and should not exceed 2500mm at most. The beam height should be 300mm, and it should be the same thickness as the wall. The lowest ring beam is 500-1500mm away from the bottom of the pit, and the highest ring beam is 200-500mm away from the lower surface of the shaft top plate. The completed framework with solid brick structure shaft can be equipped with steel clamps at the position of the fixed guide rail support frame. The position and size of the clamps are provided by the elevator manufacturer, and the user is responsible for providing materials and construction. If the shaft structure is made of hollow bricks without ring beams, steel beams can be considered to be added between the frames for rectification.


9. Multiple elevator shafts can be connected, and an 18-20 # I-shaped steel beam can be fixed at a certain height between each adjacent elevator shaft, with the same position as the ring beam. The pit must be equipped with an isolation net and raised 2500mm above the ground level.


10. Requirements for the inner wall of the shaft: The inner wall of the shaft should not be plastered, which is beneficial for reducing noise, but there should be no foreign objects protruding.


11. Power supply for the computer room: The power supply should be three-phase 380V, 50Hz, and the lighting power supply should be single-phase 220V, 50Hz. The power supply should be connected to the vicinity of the computer room entrance and equipped with an inlet socket.


 


3、 Several Methods of Well Measurement under Different Field Conditions


1) Elevator shaft in new construction projects: When the architectural design is not yet completed, the salesperson only needs to provide the user with the standard elevator layout diagram of the required elevator specifications, and the user can entrust the design department to design the elevator shaft. When the architectural design has been completed, but the site has not yet been constructed, is under construction, or has been completed, the manufacturer must produce drawings based on the current construction drawings or measured dimensions. If it is necessary to modify the original civil design of the shaft, the user should entrust the architectural design department to make modifications to the shaft design based on the layout drawings provided by the elevator manufacturer.


2) The shaft for updating the old elevator: The measurement method for the shaft that has been removed from the old elevator is the same as for the shaft that has just been constructed. When the old elevator has not been dismantled, try to obtain relevant data outside the shaft, such as the size of the machine room, floor height, and net size of the door opening. When the old elevator has not been dismantled, there are two situations: a. When the old elevator can be started: in this case, the measurement shaft must be cooperated with the elevator technician! And be sure to pay attention to safety! The elevator technician opens the hall door on the first floor, initiates maintenance operations, and drives the car to the second floor or above. The measurement personnel measure the pit data on the first floor, paying attention to recording the pit size and the structure of the first floor shaft wall, such as whether the hall door is centered, whether there are cow legs, whether there are special structures on the shaft wall, the spacing between ring beams, and the position of embedded parts. Then the measurement personnel will go to the entrance of the second floor hall, and the elevator will stop at a maintenance speed when the car roof is slightly lower than the sill of the second floor hall. The elevator technician will open the hall door from inside the shaft, measure and observe the second floor of the shaft, and then measure layer by layer to the top floor using this method. b. When the old elevator cannot be started: due to the inability to enter the shaft, limited data can only be obtained from the outside of the shaft to determine whether it is non-standard (if there is a high platform in the machine room, the plane size of the shaft can be measured in the machine room, but it is not accurate enough) for elevator quotation negotiation reference. In this case, the contract should state that the shaft rectification and cost are the responsibility of the user. For uncertain shaft structures and dimensions, users should be reminded to provide them to the elevator manufacturer or notify the elevator manufacturer to measure them before the old elevator is dismantled or the new elevator is put into operation.


3) Elevator shafts that create something out of nothing: This type of situation is often seen in old buildings or newly built buildings where users change their minds and request the installation of elevators inside or outside the building. The salesperson first conducts a preliminary inspection to see if the site has the space required for the shaft and machine room. Then, the user provides the standard elevator layout plan with the required specifications as design conditions to the architectural design department. The architectural design department analyzes the depth of the pit, top floor height, reaction force, etc. on site based on the elevator layout plan to determine whether they can meet the elevator installation requirements, as well as which building structures need to be damaged (such as smashing stairs or floors), and formulates a renovation construction plan. If it is indeed necessary to change the elevator structure (such as car size, door opening width, etc.) due to limitations in civil engineering conditions, the elevator manufacturer will consider the non-standard design of the elevator.


 


4、 Basic content of escalator shaft measurement


1. Measure the lifting height. Strictly speaking, the lifting height of the escalator is the vertical distance between the finished floor of the upper and lower support beams, which is the same as the height of the straight ladder. When using the suspension line method to measure, attention should be paid to whether there is a drop between the positioning point of the plumb line and the decoration surface of the lower support beam of the escalator.


2. Measure the beam edge distance between the upper and lower support beams. The measurement method is to suspend the line from the upper support point to the ground for positioning, and then measure the horizontal distance from the positioning point to the edge of the lower support beam.


3. The effective support width of the upper and lower support beams should be greater than the width of the escalator truss, and there should be embedded steel plates.


4. Measure the length, width, and depth of the pit (if any), and observe whether there are grooves and embedded parts at the support beam.


5. Note that there should be a space of 350mm or more on both sides of the escalator, and when arranged in parallel, there should be no restriction between the two escalators.


6. It is necessary to implement the arrangement of escalators and provide feedback to the manufacturer, so that the manufacturer can determine the configuration of certain shared devices, the order of shipment, and the alignment of handrail turns during continuous arrangement.


7. For escalators that require intermediate support, it is necessary to determine whether the site has the conditions for adding support, as well as the range of support that can be added. The specific location and parameters such as the height and load size of the support platform should be determined by the manufacturer.


 


5、 Handling of general civil engineering issues on escalator sites


1. Excessive distance between beam edges: In this case, the actual dimensions of civil engineering can be met by increasing the length of the upper and lower platforms of the escalator. One side platform can be extended, or both sides can be extended simultaneously. The total extension of the upper and lower platforms should generally not exceed 1000mm. When extending the platform, attention should be paid to the length of the pit or the opening of the floor slab, which should also be extended at the same time. After the escalator is extended, the force on the upper and lower support points will also increase. If the edge distance of the beam increases too long, support needs to be added in the middle of the escalator truss. In addition, changing the angle of the escalator from 35 degrees to 30 degrees can also increase the distance between the beam edges.


2. The beam edge distance is too small: The total length of the escalator is shortened by shortening the lower platform, but the range of shortening is limited, generally not exceeding 200mm. Generally, the platform cannot be shortened as it includes control cabinets and motors. Changing the angle of the escalator from 30 degrees to 35 degrees can also shorten the beam edge distance.


3. There is a beam or other obstacle directly above the escalator: Can the beam or other obstacle be judged by the following formula (in mm): (length of the opening -50- length of the upper platform) 732 or 1.428- beam height ≥ 2300, where: the length of the opening and beam height (including decoration thickness) are measured on-site or provided by the user; 50 is the gap between the escalator truss and the upper support beam edge (some manufacturers have a value of 40); The constant 1.428 is used for a 35 degree escalator; 1.732 for 30 degree escalators; The length of the platform shall be determined according to the manufacturer's standard layout diagram; 2300 is the minimum height specified by the national standard. Note: The inclination angle of shopping mall escalators is generally not allowed to exceed 30 degrees.


4. Insufficient transportation channels, doorway height, or turning space inside the building: In this case, if the civil engineering cannot be modified, the escalator must be transported in sections (usually divided into 2 sections) when leaving the factory, and it should be noted when signing the sales contract. The overall truss cannot be segmented after leaving the factory, and the escalator equipment is not allowed to be transported horizontally.


5. Power supply setting for escalators: three-phase 380V, 50Hz should be led to the exit of the escalator.


6. Measurement of moving sidewalks: The method is basically similar to that of escalators, measured according to the manufacturer's standard layout diagram.


 


6、 Preparation before on-site measurement


1. Appointment: Before going to the construction site, it is necessary to schedule a time with the user or construction unit, which can provide good cooperation on site. If there are lifting equipment on site, the machine room and top floor can be measured first to save energy.


2. Clothing: If the building is under construction, try not to wear sandals when entering the construction site. The soles of the shoes should not be too hard or too soft to prevent sprains or punctures. Try to wear long sleeved tops and pants as much as possible to avoid scratching your skin with building materials. You should also borrow a safety helmet from the construction unit to wear.


3. Measurement tools: It may be inconvenient to borrow them on site, so try to bring them yourself. Generally, a 5-meter steel tape measure is required for measuring straight ladders, and a 20 meter leather tape measure is required for escalators. If the on-site lighting is dim, a flashlight is essential. Large construction sites should try to bring their own compass to avoid getting lost in the building or complex (the total price of the above tools does not exceed 40 yuan). Climbing high-rise stairs consumes a lot of physical energy, so you can bring a bottle of water. Don't forget to bring paper and pen!


4. Cooperation: Try to have someone to cooperate with when measuring the shaft, especially when it is inconvenient to measure the escalator shaft alone. You can take a colleague or ask the user to send someone to cooperate.


5. Understanding the site: Before measurement, it is necessary to consult with the technical personnel of the user or construction unit to understand the situation on site, in order to prepare tools purposefully and focus on measuring special structures. For large-scale projects with a large land area, a large number of elevators, and scattered shafts, users can request a general layout plan or draw a sketch of elevator location distribution before entering the site, in order to smoothly find the position of each shaft.


 


7、 Other matters


1. For civil engineering structures that cannot be determined temporarily and data that cannot be measured (such as debris or water accumulation in the shaft) that cannot be estimated or guessed, users should be reminded to notify the manufacturer in a timely manner after the data is confirmed, or to measure again after the measurement conditions are available on site.


2. The engineering contact person and phone number of the user or construction unit should be recorded, so that the manufacturer's design personnel can directly contact the on-site technical personnel in case of technical problems.


3. The measurement and confirmation of civil engineering parameters of the shaft should be accurately implemented before the contract is signed, in order to avoid discovering that the actual situation of the shaft does not match the contract specifications or drawings, resulting in costs due to shaft rectification or elevator specification changes, which may cause disputes with users. This is generally detrimental to elevator manufacturers.


4. After the contract is signed, sales personnel should also pay attention to tracking the progress of the project. If any changes are found in the design or construction, or if the project is delayed, they should promptly request the user to make contract changes to avoid disputes in the future.


5. For special types of elevators such as sightseeing elevators, inorganic room elevators, hydraulic elevators, and car elevators, there is a significant difference in the size of each manufacturer's shaft. The confirmation of civil engineering should be based on the manufacturer's layout plan, but the principle is the same.


6. The reference standards for civil engineering design of escalator shafts are GB 7588-2003 "Safety Code for Elevator Manufacturing and Installation" and GB 16899-1997 "Safety Code for Manufacturing and Installation of Escalators and Moving Walkways". The specific conditions and data should be based on the layout drawings of each manufacturer.


 


8、 Elevator shaft size table


500KG cargo elevator single channel parameters National standard area 1.38 ㎡ Car net size 1.10m x 1.15m x 2.2m Door net size 900mm x 2100mm Traction machine power 7.5kw Shaft size 2.00m x 1.75m Pit depth 1400mm Top floor height 4500mm Machine room height 3000mm


 


500KG cargo elevator, cargo elevator, dual channel parameters, national standard area 1.38 ㎡, net size of elevator car 1.11m x 1.10m x 2.2m, net size of door opening 900mm x 2100mm, traction machine power 7.5wk, shaft size 2.00m x 1.87m, pit depth 1400mm, top height 4500mm, machine room height 3000mm


 


1000KG cargo elevator single channel parameters National standard area 2.4 ㎡ Car net size 1.41m x 1.60m x 2.2m Door net size 1100mm x 2100mm Traction machine power 7.5kw Shaft size 2.30m x 2.20m Pit depth 1400mm Top floor height 4500mm Machine room height 3000mm


 


1000KG cargo elevator, cargo elevator, dual channel parameters, national standard area 2.4 ㎡, net size of car 1.41m x 1.55m x 2.2m, net size of door opening 1100mm x 2100mm, traction machine power 7.5kw, shaft size 2.30m x 2.32m, pit depth 1400mm, top height 4500mm, machine room height 3000mm


 


1600KG cargo elevator single channel parameters National standard area 3.56 ㎡ Car net size 1.91m x 1.75m x 2.2m Door net size 1500mm x 2100mm Traction machine power 11kw Shaft size 2.80m x 2.35m Pit depth 1400mm Top floor height 4500mm Machine room height 3000mm


 


1600KG cargo elevator, cargo elevator, dual channel parameters, national standard area 3.56 ㎡, net size of elevator car 1.91m x 1.70m x 2.2m, net size of door opening 1500mm x 2100mm, traction machine power 11kw, shaft size 2.80m x 2.47m, pit depth 1400mm, top height 4500mm, machine room height 3000mm


 


2000KG cargo elevator single channel parameters National standard area 4.2 ㎡ Car net size 1.91m x 2.10m x 2.2m Door net size 1500mm x 2100mm Traction machine power 11kw Shaft size 2.80m x 2.70m Pit depth 1400mm Top floor height 4500mm Machine room height 3000mm


 


2000KG cargo elevator, cargo elevator, dual channel parameters, national standard area 4.2 ㎡, net size of car 1.91m x 2.05m x 2.2m, net size of door opening 1500mm x 2100mm, traction machine power 11kw, shaft size 2.80m x 2.82m, pit depth 1400mm, top height 4500mm, machine room height 3000mm


 


3000KG cargo elevator, single channel parameters, national standard area 5.8 ㎡, net size of elevator car 2.41m x 2.25m x 2.2m, net size of door opening 1800mm x 2100mm, traction machine power 15kw, shaft size 3.45m x 2.85m, pit depth 1600mm, top height 4600mm, machine room height 3000mm


 


3000KG cargo elevator, cargo elevator, dual channel parameters, national standard area 5.8 ㎡, net size of car 2.41m x 2.25m x 2.2m, net size of door opening 1800mm x 2100mm, traction machine power 15kw, shaft size 3.45m x 3.02m, pit depth 1600mm, top height 4600mm, machine room height 3000mm


 


5000KG cargo elevator, single channel parameters, national standard area 9.0 ㎡, net size of elevator car 2.41m x 3.55m x 2.5m, net size of door opening 1800mm x 2100mm, traction machine power 22kw, shaft size 3.56m x 4.15m, pit depth 1600mm, top height 4600mm, machine room height 3000mm


 


5000KG cargo elevator, cargo elevator, dual channel parameters, national standard area 9.0 ㎡, net size of elevator car 2.41m x 3.50m x 2.5m, net size of door opening 1800mm x 2100mm, traction machine power 22kw, shaft size 3.56m x 4.27m, pit depth 1600mm, top height 4600mm, machine room height 3000mm


 


3000KG Car Elevator Dual Channel Parameters National Standard Area 15 ㎡ Car Net Size 2.51m x 5.10m x 2.5m Door Net Size 2400mm x 2400mm Traction Machine Power 22kw Shaft Size 4.00m x 5.86m Pit Depth 1600mm Top Floor Height 4800mm Machine Room Height 3000mm


 


5000KG Car Elevator Dual Channel Parameters National Standard Area 25 ㎡ Car Net Size 2.91m x 5.60m x 2.5m Door Net Size 2400mm x 2400mm Tractor Power 22kw Shaft Size 4.36m x 6.38m Pit Depth 1600mm Top Floor Height 4800mm Machine Room Height 3000mm


 


A 320KG residential elevator carrying 4 people, with a national standard area of 0.97 ㎡. The net size of the elevator car is 1.13m x 0.92m x 2.2m, and the net size of the door is 700mm x 2000mm. The power of the traction machine is 2.5kw. The shaft size is 1.70m x 1.60m, and the pit depth is 1400mm. The top floor height is 3800mm, and the machine room height is 2500mm


 


A 400KG residential elevator carrying 5 people, with a national standard area of 1.17 square meters. The net size of the elevator car is 1.13m x 1.02m x 2.2m, and the net size of the door is 700mm x 2000mm. The power of the traction machine is 3.3kw. The shaft size is 1.70m x 1.70m, and the pit depth is 1400mm. The top floor height is 3800mm, and the machine room height is 2500mm


 


630KG residential elevator carrying 8 people, with a national standard area of 1.66 ㎡. The net size of the car is 1.23m x 1.22m x 2.2m, and the net size of the door is 800mm x 2000mm. The traction machine has a power of 4.5kw. The shaft size is 1.80m x 1.95m, and the pit depth is 1400mm. The top floor height is 3800mm, and the machine room height is 2500mm


 


800KG residential elevator carrying 10 people, national standard area 2.00 ㎡, net size of elevator car 1.43m x 1.42m x 2.3m, net size of door opening 800mm x 2000mm, traction machine power 5.5kw, shaft size 1.85m x 2.00m, pit depth 1400mm, top height 4500mm, machine room height 3000mm


 


1000KG residential elevator carrying 13 people, with a national standard area of 2.4 ㎡. The net size of the elevator car is 1.7m x 1.42m x 2.3m, and the net size of the door is 900mm x 2000mm. The power of the traction machine is 6.7kw. The shaft size is 2.15m x 2.20m, and the pit depth is 1400mm. The top floor height is 4500mm, and the machine room height is 3000mm


 


1600KG residential elevator carrying 21 people, with a national standard area of 3.56 square meters. The net size of the elevator car is 1.93m x 1.82m x 2.3m, and the net size of the door is 1100mm x 2000mm. The power of the traction machine is 18.5kw. The shaft size is 2.50m x 2.55m, and the pit depth is 1400mm. The top floor height is 4500mm, and the machine room height is 3000mm


 


800KG sightseeing elevator carrying 10 people, with a national standard area of 2.00 ㎡. The net size of the car is 1.25m x 1.64m x 2.3m, and the net size of the door is 800mm x 2000mm. The traction machine has a power of 5.5kw. The shaft size is 2.35m x 2.18m, and the pit depth is 2000mm. The top floor height is 5000mm, and the machine room height is 3000mm


 


A 1000KG sightseeing elevator carrying 13 people, with a national standard area of 2.4 square meters. The net size of the car is 1.35m x 1.84m x 2.3m, and the net size of the door is 900mm x 2000mm. The power of the traction machine is 6kw. The shaft size is 2.60m x 2.38m, and the pit depth is 2000mm. The top floor height is 5000mm, and the machine room height is 3000mm


 


1600KG sightseeing elevator carrying 21 people, with a national standard area of 3.56 square meters. The net size of the car is 1.60m x 2.34m x 2.3m, and the net size of the door is 1100mm x 2000mm. The traction machine has a power of 17.5kw. The shaft size is 2.50m x 2.55m, and the pit depth is 2000mm. The top floor height is 5200mm, and the machine room height is 3000mm


 


1600KG hospital bed elevator single channel national standard area 3.56 ㎡, net size of elevator car 1.43m x 2.35m x 2.3m, net size of door opening 1200mm x 2100mm, traction machine power 19kw, shaft size 2.40m x 2.95m, pit depth 1600mm, top height 4500mm


 


1600KG hospital bed elevator dual channel national standard area 3.56 ㎡, net size of elevator car 1.43m x 2.20m x 2.3m, net size of door opening 1200mm x 2100mm, power 19KW, shaft size 2.40m x 2.96m, pit depth 1600mm, top height 4500mm, machine room height 3000mm



 



?
码高清av一区二区,60岁女人毛片,伊人久久大香线蕉av蕉,亚洲天堂av,91精品国自产在线播放,免费看又黄又爽又色又刺激的软件,看国产黄色大片视频在线观看免费,4hu永久在线播放地址,国产精品五区在线,精品v亚洲v欧美v高清∨
电影激情艳女| 久久精品国产亚洲vr| 在线观看亚洲人成电影网站| 久久人妻人精品| 97久久偷偷做嫩草影院免费看| 久久精品国产亚洲一区二区》| 亚洲 欧美 视频 在线| 老司机电影院av| 男女床上小黄片| 亚洲精品色婷婷在线观看| av免费在线不卡播放| 国内精品久久久久久久星辰影视| 97超碰人人人做人人爱| 国产精品一卡二卡3卡| 欧美性受xxxx少妇| 精品久久精品免费视频| 国产久久久精品一区二区| 丝袜美腿啪啪(网站)| 欧美日韩国产一区精品综合| 隔壁老王网站在线观看| 精品久久久大香蕉| 成年黄片免费| 成年人网站视频播放| 美女后入啪啪动态图| 蜜臀88av网| 久久精品 国产99| 高清性做爰片免费视频毛片| 不卡av在线免费观看| 天堂在线 男人| 最近精品国产三级a∨在线| 免费毛片av| 承认网站在线观看| 国产精品呦仙踪林最新章节| 又爽又好看的黄色视频| 亚洲丝袜诱惑av| 五月婷婷丁香综合在线观看| 日韩av电影一区二区在线观看| av免费久久| 国产av色吧| 黑人操中国美女真实视频| 91精品免费影院| 国产亚洲精品久久网| 国产精品一区二区三区aaaa| 久久精品久久免费久久| 又爽又黄少妇毛片夜夜夜 | 不卡视频免费观看网站入口| 美女舔茎视频| 日本在线观看视频亚洲| 人人妻人人澡人人妻| 日韩一区二区免费在线电影| 亚洲av中出在线| 午夜免费福利观看| 国产精品熟女高| 我和岳互交换夫妇中能4pwxx| 亚洲香蕉精品| 国产午夜精品一区理论片2022 | 亚洲精品爱久久综合国产| 在哪里可以免费看视频| 国产精品久久久久久av一区二区三区| 亚洲精品亚洲天堂软件| 美日韩二区三区| 激情视频免费在线播放| 喷水高潮视频一区| 色撸撸男人天堂| 适合一个人看的免费视频| 黄 色在线观看| brentgv电影天堂| 国产无遮挡又黄又爽不| 青青国产视频在线观看播放| 久久精品亚洲国产av高清yw | 可以免费观看的av视频| 国产亚洲精品成人av一区| 国产欧美一区v区| 看片久久久久久久| 亚洲欧洲日韩久久| 97人妻碰碰免费视频网站| 蜜桃精品免费久久久久影院| 97操碰在线观看| 日韩一区三区二区最新视频| 成人av十八亚洲二区| 久久人人爽人人爽人人片av剧情| 那种网站在线观看| av先锋资源网站在线观看| 亚洲av少妇一区二区在线观看 | 波多野结衣在线3区| 一个人看的www片在线高清中文| 色婷婷狠狠18禁久久yy网站| 在线av大香蕉| 亚洲欧美制服丝袜在线观看| 日韩一区二区免费在线电影| 小明精品国产一区二区三区| 永久免费视频成人福利| 国产午夜在线视频不卡| 2019亚洲免费网站观看视频| av免费久久| www.国产高清在线视频观看| 边吃奶边摸边高潮的免费视频| 精品亚洲欧美一区二区三区| 亚洲中文第一字幕欧美一区| 深夜精品日韩| 精品国产久久蜜桃| 精品在线国产一区二区| 五月五日丁香欧美| 中文字幕人妻久久精品一区| 电销卡购买平台推荐| 久久九九免费精品一区二区三区| 激情人妻欧美精品一区| 18av地址发布页| 搞j视频免费又黄又爽| 婷婷99精品国产97久久综合| 国产亚洲精久久久久久麻豆| 狠插下体免费视频| 午夜毛片a级| 女人被男人操视频免费网址| 免费黄国产视频| 香蕉久久综合| 一区二区三区福利电影在线观看| 播放国产精品| 国产精品亚洲欧美w| 精品人妻一区二区三区蜜桃| 久久久国产精品久久久久| 精品国产电影网九九久久| 亚洲人成影视aⅴ38| 97精品久久久久久久久久精品厂 | 少妇又爽又黄又粗视频| 午夜欧美激情在线| 高清免费在线毛片| 日韩欧美中文字幕在线| 亚洲情色网视频| 欧美性猛交xxxx乱大交丰| 97超碰在线播放视频| 好吊色免费在线观看| 亚洲视频自拍网| 国产精品-国产精品久久| 秋霞av.com| 雾中系铃人在线观看| jjav久久久一本精品| 一个人免费看的片| а√天堂资源在线官网| 97久久婷婷国产综合免费| 18禁高潮娇喘喷水| 亚洲国产区一区二区三区| 激情欧美一区二区中文字幕| 和尚吮她的花蒂和奶水视频| 欧美日韩国产电影在线观看 | 性电影免费视频| se7se成人免费播放视频| 亚洲欧美v精品| 美日韩中文在线一区二区三区| 秋霞av.com| 久久www成人_看片免费| 久久九久久中文字幕视频| 国产又色靠逼视频| 亚洲国产欧美日韩在线一区二区三区精品 | 国产不卡av电影网| 国产精品一区二区成毛片| 国产av不卡在线观看| 和朋友夫妇的交换电影| av老司机精品在线观看| 在线国产影院| 成年人av毛片| 黄山网站在线观看| 无名之辈高清在线观看| 少妇熟女一区二区三区视频| 精品少妇人妻少av免费久久| 岛国av男人天堂| 在线播放的a网站| 好吊色成人在线| 亚洲成人久久一二三区| 国产福利网站一区二区| 日本一区二区三区在线观看视频| 国产高清在线观看的91综合| 亚洲美女网免费观看| 先锋秋霞av| 亚洲一区二区三区久久av| 精品国产999久久久免费| 啦啦啦啦www免费观看| 国产中文字幕 在线儿观看| 中文字幕乱码亚洲无| 国产福利视频精品| 日韩一卡二卡3卡四卡2021精品| 国产免费美女日b视频| 欧美成人生活大片| av电影网在线日韩| 亚洲av国产在线观看| 国产成人久久一区二区三区a| 国产视频线播放| 欧美精品xxxxxxxx| 日本爱情动作视频免费| 91亚洲精品中文字幕| 亚洲精品美女久久久99| 97国产人妻人人爽| 嫩草伊人久久精品少妇av小说| 久久久久www成人免| 老司机邪恶影院| 一区二区三区国产好的精华液| 日本免费网站免费| 日韩中文字幕欧美国内亚洲| 久久精品国产精品亚洲人人| 97久久亚洲国产精品超碰| 亚洲人妻精品中文| 一级av黄色毛片| 成人爱在线免费视频| 国产丝袜女久久| 最近日本免费播放视频| 一码二码三码乱码区| 亚洲国产欧美日韩在线一区二区三区精品 | 大片在线播放免费看| 女人15毛片a级16女人水真多| 国产精品果冻传媒在线| 成年人看片免费视频| 爱色av一区二区三区| 一二三四视频社区在线7| 美女视频免费看黄| 国产拍av在线| 老司机午夜电影福利| 亚洲а∨精品天堂| 亚洲欧美国产精品日韩| 精品久久久久久久久中| www:久久精品| 国产亚洲精品aa大片| 一区二区三区最新视频| 想看黄色三级毛片| 美女脱内裤可看视频| 三级伦在线观看| 在线免费播放人成视频| 国产精品理论片久久| 99久久午夜精品国产av| 中文在线资源库最新天堂网| 欧美最新一区另类| 国产乱码一区二 区| 18禁黄网站禁片免费观看| 国产麻豆欧美极品日韩一区| 在线天堂中文.| 亚洲一区二区三区久久av| 久久日本中文字幕| 韩国激情电影 在线| 黄片免费在线观看黄片| 国产精品丝袜久久久久久app| 好男人观看免费视频播放全集| 国产精品男人的天堂av在线观看| 高潮毛片无遮挡高清免费看 | 日韩亚洲欧美熟女网站| 精品国产欧美日韩视频| 成人激情在线视频网站| 性生交大片免费看着| 一个人看的片免费高清中文| 国产乱x入x对白视频| 精品97在线视频免费观看| 国产乱码精品一区二区vv| 国产男女黄视频在线观看| 免费毛片在线上看| а√天堂资源中文在线| 免费黄软色哟哟| 成人三级在线观看一区二区| 国产精品久久不卡网站| 很黄很色在线观看| av午夜福利片| 成年女人免费视频| 最近2019中文字幕在线视频| 精品人妻一区二区三区四季av| 亚洲精品国产综合99久久夜夜嗨| 嘟嘟嘟在线播放| 黄黑皮穿什么颜色衬衫好看| 欧美成人一区二区三区一| a一级视频免费观看| 婷婷丁香网五月| 久久亚洲第一区| 久久狠狠高潮亚洲精品小说| 日韩色视频一区二区三区| 99热这里只有精品39| www.蜜桃视频.| 亚洲第一久久网站| 欧美亚洲第一免费网站| 激情图片激情电影麻豆| 久久久国产精品首页免费| 国产美女被遭强高潮开双腿网站 | 精品人伦1区2区3区蜜桃| 5精品久久久| 牲刺激久久久久久久久免费看| 国产97高清在线观看| 欧美日韩国产二区在线观看| 国色天香精品一卡2卡3卡| 欧美专区精品另类av变态一区| 亚洲精品久久久久久久一级毛片| 欧美日韩国产一卡2卡3卡4卡新区| 欧美国产激情一区二区| 97在线视频三区| 俄罗斯一级毛片·| 亚洲 国产 精品| 99热都是精品久久| 亚洲中文字幕在线免费视频| 国产一区二区精品乱码| 在线www,久久精品99国产| 久久品国产亚洲av香蕉| 国产男女猛烈无遮挡高清视频| 97资源在线视频| 狠狠久久精品婷婷| 丝袜国产一区91| 成人av亚洲一区二区三区| 中文字幕av免费一二专区| 60岁女人毛片| 不卡av在线免费观看| 在线观看91精品国产麻豆| 丁香激情五月天在线观看| 久久精品国产亚洲av麻豆四区 | 91天堂精品大蜜范| 蜜桃av成人永久看| 一边摸一边抽搐一进一出69| 久久久久久国产三级精品| 嫩草影院在线观看123| 亚洲国产二区一区| 97人妻超级碰碰碰视频| 五月色播亚洲综合在线电影| 少妇裸体淫交视频免费看| 免费不卡的大黄色大毛视频在线观看| 可以免费看的黄色一级片| 国产欧美日韩va另类在| 久久精品国产亚洲av果冻传 | 亚洲国产一区三区四区在线| 亚洲av精品蜜桃| 国产精美黄频免费观看| 亚洲国产高清精品啪啪| 亚洲六月丁香六月婷婷| 天天想夜夜干| 国产精品视频免费在线播放| 小说区视频区图片区| 国产激情在线视频首页| 国模av天堂| 久久热国产精品| 免费在线观看网站深夜免费| 女人和男人干黄| 韩国三级精品三级在线专区 | 这么多年免费观看在线高清观看| 日韩在线播放一区二区三区| 亚洲av人妻在线观看| 成熟女人一级毛片免费看| 全网国产日韩欧美| 国产亚洲精品久久久一区二区三区| 麻豆av三区| 六月丁香综合免费视频| 欧美一级毛片免费高清aa| 国产美女亚洲精品久久久毛片| 99久久国产综合精品网成人影院| 哺乳期能用三醇卡泊吗| 国产精品成人啪| 老师上课跳d突然被放开到最大 | 亚洲综合日伊人| 亚洲av最新天堂| 日韩欧美av大片| 搡老熟女老太老女人| 最新av在线免费观看网址| 一个人高清www视频| 国产日韩欧美视频在线观看| 久久久亚洲熟妇熟女ⅹxxx69| 国产成人欧美一区二区三区在线| 久久国产婷婷精品| 狠狠干夜夜躁| 婷婷免费精品在线| 中文字幕乱码人妻一区二区三区| 欧美黑人又粗又长做爰爽爽爽| 40岁成熟女人牲交片免费| a亚洲男人天堂免费免费在线视| 99热这里只有精品久草| 午夜福利100092| 一个人看的片在线观看免费观看| 大片在线播放免费看| 国产91人妻av| 欧美性猛交xxxx黑人猛交| 日日做夜夜摸| 久久精品 国产99| 亚洲国产精品va| 国产精品99久久久久久人蜜臀| 制服丝袜 av 在线| 人妻人妻人妻最新在线视频| 国产亚洲精品美女久久久久久性色| 无遮挡男女啪啪成人免费网站观看 | 久久久久精品人妻一区二区| 久久av喷水av高潮| av免费在线观看网站入口| 15yc午夜福利在线观看| 国内精品伊人久久久久| 成年女人乳房变大有什么问题吗| 图片专区小说专区视频专区| 又粗又长又大又爽的黄色视频| 日本免费网色视频在线| 女人爽得一边呻吟一边| 国产精品青草久久久久蜜桃| 在线观看国产精品拍| 久久中文字幕亚洲| 色欧美精品在线小视频| 亚洲无av码一区二区三区hd| 亚洲精品天堂av在线| 在线中文字幕在线视频| 亚洲码av一区二区三区| 欧美亚洲国产欧美亚洲| 亚洲精品午夜a| 亚洲丰满少妇内射| 久久成人亚洲精品中文字幕| а√天堂资源地址在线官网下载| 日韩亚洲一区中文字幕在线| 免费的成年a级毛片免费看| 国产成人精品一区二区免费视频| 一级片完整版免费| 国产av情色在线| 日本午夜影院在线观看视频| 一个人免费观看的www在线观看| 久久久精品首页| 夜夜躁狠狠躁日日躁孕妇| 亚洲精品爱久久综合国产| 亚洲综合成人影院| 免费av在线播放一区二区| 蜜桃a人妻精品一区二区三区| 国产精品第一页在线播放| 国产老妇60xx| 亚洲人成网址在线播放a| 韩国三级精品三级在线专区| 欧美日韩乱码高清一区二区| 国产亚洲精品一区av| 京东热av电影| 精品国产亚洲av久一区二区三区 | 黄色毛片免费在线播放| 久久精品国产亚洲av麻豆四区| 国产av剧情精品| 亚洲国产日韩精品| 欧美日韩国产动漫一区| 永久免费的啪啪网站免费观看| 被黑人女人三十分钟视频| 中文字幕视频精品| 一级黄片久久看| 久久婷婷色一区二区三区asmr| 久久精品国产亚洲av麻豆.| 日本欧美在线字幕| 久久国产精品久久久久久小说| 刺激大片在线免费观看| 国产三级黄片播放| 日韩欧美一区二区激情| 国产av久久亚洲毛片| www.97在线视频| av黄片在线播放不卡| 亚洲精品免费久久久| 在线观看黄色网线| 国产av网站发布精品| 久久久久久午夜视频| 成全视频在线观看免费观看特级片| 国产在线视频一区 二区| 欧美成人精品丝袜| 美女双飞高潮直喷水在线播放| 成人一区二区三区高清小视频| 51午夜福利在线| 久久国产乱子伦精品免费| 午夜精品久久久久久久蜜臀| 亚洲免费午夜福利| 久久r久久精品国产99热| 丁香六月激情综合亚洲| 国产日产精品国产精品毛片| 色播在线永久免费视频观看| 99国产精品免费人妻蜜桃| 亚洲国产欧美日韩二区三区| 人妻少妇久久久久久97人妻二| 欧美成人精品三级网站下载| 男人的天堂网址色偷偷| 黄片在床上免费看| 午夜精品毛片久久久久久久久久| 亚洲av专区字幕中文| 久久香蕉在线观看| a级毛片免费视频网站| 精品香蕉视频精品在线观看| 女生三级毛片| 5060永久免费一级毛片| 日本视频在线一| 真人版一进一出抽搐| av国产精品毛片一区二区小说| 欧美亚洲国产日韩一区二区在线观看| 乱中年女人伦中文字幕久久| av视频网站在线观看| 欧美精品成人a在线观看麻豆| 国产精品综合亚洲| 人妻偷人18p| 国产精品99久久免费观看99| 九九精品视频16| 亚洲成人av噜噜噜| 久久婷人人澡人人爽人人| 一二三四免费观看社区5| 日本xxxx高清色视频在线| 久久人妻不卡一区鲁一鲁| 亚洲av黄色永久免费在线观看| 亚洲国产91精品久久久久| 亚洲日本欧洲色噜噜粉嫩av| 青青草原亚洲精品| 午夜美女网站黄| 丁香花成人色区| 午夜激情在线观看视频日本| 欧美色 亚洲| 在线丝袜美腿| 亚洲精品乱码久| 四虎国产精品成人在线| 国产农村一级毛片新婚之夜| 亚洲精品国产第一综合色吧| 久久九九九色视频网站| av不卡在线观看网站| 吃美女奶头视频| 欧美性受x黑人丫性爽精品一区二区| 久久久久亚洲香蕉| 黄片国语对白| 午夜精品久久久久久99热乱码 | av尤物国产在线观看网站| 精品综合99久久久久久www| 日本老妇人一区| 久久九九亚洲中文字幕宅男| 在线观看a的免费网站 | 国产精品二区久久久| 亚洲xx网站| 日韩精品一区二区三区蜜桃| 非洲黑人粗长大战亚洲女| 最大中文字幕视频大全免费| 日日撸夜夜欢| 凹凸熟女白浆精品91| 亚洲av日韩综合一区久内射| 精品国产91av在线观看| 亚洲网站在线电影院| 中文2022无线码| 久久久久国产精品www| 性做久久久久久免费观看| 男人的天堂国产精品网站播放 | 亚洲国产精品日韩av专区| 在线精品国产-亚洲av| 亚洲成人av影视| av尤物网站在线观看| 免费a级毛片高清| 麻豆成人av免费大全在线观看| 国产日韩欧美 一区二区| 久久国产99精品日本三级| 欧美成人aⅴ电影| 精品久久久久国产字幕久久 | 一级免费黄片下载| 啦啦啦在线视频免费观看动漫| 日韩欧美综合在线视频二区| 欧美性少妇xxxxxx| 亚洲天堂精品中文字幕| 真人啪啪xxoo动态图gif| furry巨大粗爽gay动漫| av网址在线播放| 精品对白刺激视频| 真人无遮挡高清作爱免费在线视频| 中国一级黄色毛片免费观看| 欧美亚洲国产精品久久高| 秘密在线观看视频| jjav久久久一本精品| 在线播放亚洲国内人| 欧美视频成人在线观看| 日本最新免费在线| 日韩精品国产欧美| 道不远人人之为道而远人| 欧美午夜精品一二三区91电影| 91高清国产在线观看| 亚洲精品午夜a| 国产精品任我爽爆在线播放| 午夜免费观看一区二区三区| 下载欧美黑人特黄| 老师来了在线观看完整版免费| 欧美性av在线| 一道本av在线播放| 亚洲专区 久久| 国产gvgay片| 男人给女人添p添到高潮| 日韩高清资源在线观看| 久久精品av成人网| 欧美一区二区三区四区五区在线观看| 亚洲伊人久久大香线蕉综合图片| 香蕉午夜av| 国产欧美日韩久久精品| 亚洲国产综合精品2020| 污片av网站免费| 亚洲精品久久久ww| 伊人亚洲中文字幕在线观看| 中文字幕在线视频在线永久视频2019 | 亚洲欧美在线一区中文字幕| 韩国年轻夫妇交换| 国产乱人精品视频av| 亚洲免费一区av| 一区二区三区精品视频播放| 蜜桃久久成人国产精品电影网| 欧美人与兽xxx| 一级做a爰片久久毛片美女图| 国产成人一区二区啪在线观看| 亚洲中文aⅴ中文字幕在线 | 人成免费视频观看在线| 看黄色 级毛片| 国产一区二区三区福利在线观看| 激情欧美一区二区中文字幕| 啦啦啦www视频在线免费观看 | 亚洲av成人在线免费观看| 亚洲国产三级精品| 亚洲精品久久久久久久久久蜜臀 | 亚洲国产好了av| 久久久亚洲熟妇熟女ⅹxxx69| 国产精品国产三级国产一区二区 | 精品久久久久久久久99| 在线观看亚洲av电影院| 男上女下无遮挡| 天堂网在线资源网站| 交换夫妇中文| 色哟哟—国产| 欧美激情18禁| 日韩高清av影片| 美丽教师视频免费观看完整版 | 国产美女一级a毛片录像在线空姐 中文字幕av不卡淫盗 | 在线观看国产内射自拍| 亚洲国产一区二区三区视频在线观看 | 91香蕉视频下载大全| 一女多夫夜夜销魂| 国产精品一区二区三区aaaa| 黄片在线播放午夜| 亚洲av色婷婷久久| sex欧美xxx| 国产精品这里有| 可以在线免费观看黄色视频的网站| 麻豆国产精品va在线观看| 人妻一区二区久久久久久网站| 色视频网站老司机| 97操碰在线观看| 神马国产精品影院| 97久久精品人人人妻mm| 亚洲精品久久久久中文第一幕| av天堂av| 3对夫妇交换刺激做爰| 日韩av电影天堂一区二区| 最近高清中文字幕大全6| 又黄又免费的视频.| 国产精品久久久久9999三级| 操黑丝高跟在线| 最好看韩国伦理电影| av毛片免费在线观看网站| 久久精品 国产99| 国产高清卡一卡二卡三卡四| 国产成人精品免费看片| 娇喘抽搐高潮视频| 国产黄频在线观看视频| 成人国产av精品麻豆网址| 精品国产91乱码一区二区三| 亚洲欧美国产一区二区在线观看| 中文字幕久久乱码一区二区| 国语成人在线视频| 国产伦精品一区2区3区免费| 全免费的特黄视频| 亚洲中国精品久久久久网站 | 女生高潮视频免费在线观看| 欧美性猛交xxxxx69交| 成人日韩在线| 成人综合国产成人亚洲| 免费av在线播放一区二区| 最近中文字幕高清中文字幕无| 夜夜福利yeyefulicom| 狠狠v欧美v日韩v亚洲v| 性高朝久久久久久| 日韩欧美乱码| 亚洲午夜视频福利| 久久这里只有精品26| 又长又粗又爽黄色毛片| 亚洲+欧洲+日产+韩国| 中文字幕av久艹人妻在线| av精品人妻区一区二区三区| 亚洲精品乱码一二三四五区| 免费av在线播放一区二区| 国产老妇伦国产老妇熟女视频| 69网页黄色免费国产视频| 国产 熟女 精品| 美女高潮喷水在线观看| 久久久久久久黄色视频| 久久久久精品国产蜜桃| 精品久久久久影院嫩草| 黄片在线免费观看不卡顿| 国产欧美精品久久23678| 精品国产av噜噜一区二区| 全免费a级毛片免费网站| 图片区小说区视频区综合区| 成年一级黄色视频在线上播放| 日日摸夜夜躁| 精液呈青黄色| 欧美日韩综合91| 在线免费观看不卡的av| 亚洲一区自拍视频在线观看| 最新中文字幕免费在线观看视频| 久久电影网蜜臀| 午夜精品亚洲精品av| 色哟哟黄片代码在线观看| 无遮掩视频在线观看| 亚洲天堂免费精品| 在线免费日本a| nntt00全亚洲| 与黑人做爰高潮了| 69毛片在线观看| 老师和我在线观看| 国产综合乱码一区二区三区四川人| 看看美女的奶头| 天堂在线最新版www√下载| 成熟少妇毛片免费观看| 精华乳精华液| 欧美成人ee在线视频免费观看 | a级毛片无套内谢在线免费观看| 久久久久国产精品不卡| 成人亚洲电影网| av日韩在线影院| 亚洲在线国产一区| 5g网站在线观看| 女人被躁到高潮嗷嗷叫000| 毛片av亚洲| av毛片免费在线观看网站| 女人和男人黄色| 亚洲激情欧美另类| 美女黄片十八禁| 国产又粗又猛又爽又黄在线阅读| 国产精品大播放| 日韩欧美国产三级在线观看| 狠狠躁天天躁中文字幕| 一区二区三区在线播放视频| 久久日本中文字幕| 国产成人综合亚洲欧美在线观看| 久久久99久久精品| 成人精品第一区二区三区| 在线视频 欧美 亚洲 国产| 国产小视频对白| 日本电影w丰满的欲妇| 精品在线国产一区二区| 亚洲精品一区| 欧美精品一区二区三区水蜜桃| 人妻18毛片a级毛片免| 国产高清视频免费啪| 国产综合精品久久久久久久| 西班牙三级毛片| 国产女人18毛片水真多'| 国产精品影院在线| 美女一级黄片美女自拍偷拍!| 日韩av大胆在线观看| 欧美国产激情| 99久久精品国产成人综合网络图片| 国产尤物av免费看| av网站国产天堂网| 亚洲一区二区三区欧美另类| 美女性生活黄色片| 亚洲呀黄片123.| 成人午夜视频免费在线| 久久大香萑太香蕉av| 成年片子免费| 成人亚洲av手机在线| 日韩欧美美女被插| 久久影院看电影的网站推荐 | 久久久久国产精品www| 黄色大片日本黄色大片| 免费av在线播放亚洲| 成人午夜高潮刺激免费视频 | 人妻视频只有精品| 老女人性生活黄色片| 在线播放毛片| 男人搞女人视频免费| 久久国产精品2| 日本理论精品理论影院| 我的极品老师在线观看| 精品人妻av乱码中文字幕| 国产精品久久久久久亚洲蜜桃| 国产精品免费虐久久久久影院| 亚洲av中出在线| 看黄色片,看黄色片| 交换朋友夫妇4中文字幕| av首页在线播放| 卡一卡二卡三 精品| 亚洲欧洲中文日韩| 欧美亚洲另类久久综合婷婷| 青禾男高高清在线| 黄色大片国产片| 国产专区一卡二卡| 天天碰夜夜摸日日爽| 永久av在线播放| 老司机啪啪黄色视频| 精品国产av在线观看| 免费观看午夜福利电影| 日本av在线观看影院| 国产精品免费看久久久8| 国产成人色电影在线播放| 欧美日韩电影网址不卡一| 黑人巨精高潮啪啪视频| 精品97在线视频免费观看| 久久精品国产高清av| 亚洲高清自拍av| 最新亚洲中文字幕在线观看| 久久成人亚洲精品欧美| 久久经典精品 国产| 波多野结衣二区在线| 丰满人妻狠狠后入av二区| 在线免费a级毛片| 久久精品亚洲综合一区| a级毛片大香蕉| av不卡在线观看网站| 日韩精品中文字幕在线视频| 色欧美在线视频| 99re在线免费观看视频| 欧洲亚洲国产综合| 人妻有码啪啪视频专区| 国产免费影视久久久| 精品国产乱码久久久久久夜深| 啊~cao死你小sao货网站| 青青草视频在线观看久草视频| 久久视频成人网| 老汉色在线理伦伦片| 成人免费边摸边吃奶视频| 美女视频全黄免费| 日本免费网站www| 少妇被爽到高潮喷水久久| 亚洲一级av片免费在线观看 | 人人爽人人爽人人片av免费| 国产精品99在线观看| a激情视频永久免费观看| 啦啦啦在线视频网| 无名之辈高清在线观看| 久久久精品三区| 国产精品一区av在线播放| 日日摸夜夜添狠狠添欧美| 亚洲成人黄色在线| 一个人在线观看视频高清www免费| 美人视频在线| 久久久久久久99999| av 乱码精品 久久久| 亚洲伦视频在线观看| 亚洲欧洲日产综合综合| 精品国产亚洲欧洲| 亚洲在线中文字幕国产| 制服丝袜在线一区二区| av天堂久久久久久久精品成人热| 18禁男女无遮挡| 色漫在线免费观看| 在线看番剧网站| 久久av网站国产| 午夜福利片最新在线观看| 亚洲丁香激情五月| 午夜福利精品在线| 精品国产乱码aaa一区二区| 中国内射av丰满| 国产在线丝袜美腿| 一本久久国产精品| 日韩国产欧美亚洲中文专区| 高潮毛片无遮挡高清免费| 亚洲人成伊人成综合网中文强| 看黄片欧美日韩国产| 97在线成人自拍视频| 亚洲欧美洲成人一区二区三区| 老司机午夜福利视频一区二区| 亚洲av嫩草影院在线| 国产一级又做a爱片在线看免费| 日韩中文字幕免费的视频在线看网址| 国产高清一级毛片在线视频| 韩国三级大尺度电影在线观看| 伊人久久av狼人| 国产亚洲精品久久网| 日日做夜夜撸| 日本理论精品理论影院| 欧美日韩精品视频一区二区三区_久灬| 色综合久久久久久久久久| 天堂√最新版在线资源| 精品国产91久久久久久午夜蜜臀| 免费日韩码45分钟| 日本伦理电影在线影院| 欧美日韩国产精品一二区| 免费啪啪啪动态图| 亚洲免费av永久| 啦啦啦在线视频免费观看下载| 亚洲天堂免费精品| 欧美,亚洲精品视频| 久久人妻大片| 精品毛片免费看一区二区三区| 亚洲`欧美日韩一区,二区| avhd101最新| 亚洲欧洲日产综合综合| 亚洲的日韩男人天堂久久| 91秦先生野战陌生女神在线| 国产精品伦理片在线观看| 久久99久久久精品| 九色国产成人在线| 深夜福利网站免费在线观看| 中文字幕伊人久久| 波多野结衣免费二区| 蜜桃视频321| 在线观看视频免费黄色视频| 成人青精品视频99在线观看免费| 国产伦精品一区二区三区2 | 亚洲欧美另类丝袜综合图区| 亚洲精品国产三级| 国产又黄又色又爽视频网站| √天堂资源网最新版在线| 国产精品一区在线观看0| 欧美成人精品欧美一级乱| 福利三区四区在线观看| 久久国产美女av一区二区| 最新在线精品国产福利| 美女被折磨到高潮| 鸡蛋黄红色好还是黄色好| 国产精品免费久久影院| 日韩欧美国产综合在线| 久久精品国产72国产精福利| 又黄又爽又色的视频免费版 | 国产高清久久久国产精品| 国产免费网址av| 97人妻人人添人人| 尤物av在线观看网站| 久久人人爽精品| 亚洲av最新天堂| 欧美日韩大片在线看| 又爽又好看的黄色视频| 亚洲精品码一区二区| 小说视频区图片| 第九影院午夜伦理| 看黄色视频卡频| 18禁无遮挡在线免费观看| 伦理三级完整版| 国产精品av久久777| 999热在线视频精品| 在线视频观看青青草| 黄三级高清在线播| 美女视频在线看| 人人参与人人尽力人人享有人人负责| 久久久久视频观看| 可以直接免费观看的a级毛片| 日韩人妻久久久久久久| 午夜性视频专区| 看一级黄色片一级黄色片| 在线播放免费人成视频| 日韩一级av免费在线观看| 一个人免费观看ww在线播放视频| 久久人人爽人人爽人人片av小说| 又黄免费视频| 熟女人妻人人澡人人| 中文字幕 欧美日韩| 下体在线免费看视频| 桃花社区观看| 亚洲成人中文字幕在线| 美国黑人狂操美女在线视频| 在线观看一区二区精品国产入口| a级毛片黄片免费观看| 亚洲国产精品一二三四| 又粗又长又爽久久毛片| 日本免费一本一二区三区| 午夜电影福利片| 99久久精品国产免费男女| 久久精品 国产精品| 性生交大片免费9| 国产91色|欧美| 免费国产黄色在线视频 | 欧美变态在线视频| 亚洲特黄av大片在线观看| 亚洲成人av噜噜噜| 国产日韩av.com| 为什么精液会呈黄色| 久久久久久久精品裸体艺术| 婷婷狠狠亚洲| 嫩草av久久a级毛片| 日本一区二区三区dvd视频在线 | 男人摸女人下面视频在线观看| 最近最新中文字幕2019| 国产又色又爽又黄无遮挡免费视频| a毛片不卡免费看片| 亚洲精品久久久久久久久久蜜臀| 国产欧美日韩精品一二| 精品久久久久影院嫩草| 精品国产三级a在线| 亚洲精品成人伊人久久| 老鸭窝av电影天堂网| 99精品又大又爽又少妇毛片| 国产成人综合在线亚洲| 免费看毛片在线看| 最新手机av网址| 亚洲第一免费av| 色网站免费在线| 男人天堂 av| 99re视频免费在线观看| 91精品久久久老熟女| 18禁高潮娇喘喷水| 黄频视频免费| 社区视频一区| 青春草在线黄色视频| 人人妻人人爽人人澡人人精品 | 美女视频在线看| 国产精品一区二区成人精品| 九九久久精品国产| 色哟哟在线免费观看视频| 一级a爱电影免费观看| 国产精品欧美成人久久| av免费永久福利| 一级一片免费视频播放| 超级教师在线观看全集| 亚洲欧美日韩一区免费| 最新动作片大片免费观看| av网站国产天堂网| 国产婷婷久久网| 国产精品久久久久久按摩| 视频免费完整版在线看| a黄色视频在线观看| 黄色在线免费下载观看| 亚洲av网站不卡| 丰满人妻狠狠后入av二区| 午夜免费观看www| 神马影院午夜伦理视频一区| 男女床黄激情av网站国产| 调教乳头的黄色视频| 一区二区三区国产亚洲欧美 | 五月天色婷婷丁香综合| 久久午夜精品一区二区三区| 天天噜夜夜噜视频| 移动花卡39元套餐通用流量| 免费看的日韩av毛片| 日本高清在线观看wwwww色| 免费看特黄美女视频| a毛片不卡免费看片| 亚洲人成人影院在线观看| 国产美女嫩模午夜福利视频 | 国产精品久久久久久久久久三级| 精品国产人妻人伦一区| 极品粉嫩尤物在线播放| 92午夜福利合集1000在线线看 | 亚洲毛片在线| 国产亚洲精品一区二555| 午夜免费看片福利| 一道本av在线播放| 国产又色又爽又黄无遮挡免费| 伦理三级完整版| 免费观看人成影片| 日本成人伦理电影在线| 天堂av亚洲av| 蜜桃成啪啪视频| 亚洲欧美日韩综合另类第一页| 欧美色一区二区三区四区| 日韩性视频激情在线一区| 日韩欧美亚洲伦理| 一个人观看的高清视频www| 全国一级毛片免费观看| 久久免费电影观看| 免费一级片高清视频| 欧美熟女内射观看| 少妇影院yy1111| 亚洲福利午夜久久久精品电影网| 国产在线精品观看一区| 日韩 av 免费| 亚洲性夜夜情| 午夜男女啪啪av| 对白射精在线蜜桃| www.久久久久久精品| 欧美日本亚洲视频一区| 中文字幕熟女人妻久久| av网站大全在线免费观看| 在线免费av网站观看| 丁香色区五月天| 披荆斩棘的哥哥高清在线观看| 午夜av在线国产精品 | 亚洲福利av在线播放| 欧美精品hdvideosex| 欧美日韩人妻精品一区二区三区,| 免费人成视频在线观看播放软件| 天堂在v线中文在线8| 香蕉午夜在线| 最新的中文字幕在线视频| 玩弄放荡人妻少妇200| 日韩高清在线视频| 国产香蕉97碰碰久久人人蜜桃'| 亚洲黄色av一级片| 亚洲男人堂色偷偷一区| 老司机性福利视频| 成年人看的视频在线播放| 国产成人精品av一区| 又色黄又爽18禁免费网站| 国产精品午夜久久| 中文字幕无线码一区| 网址视频在线成人亚洲| a免费网站在线观看| 曰本人的黄色的页码好看| 亚洲中文字幕在线7| 二区三区精华液区别| 三级日本高清完整| 午夜福利877| 人人妻人人澡人人爽精品曰本| 亚洲欧美精品午夜一区二区 | 久久久久麻豆精品国产| 在线播放毛片| 国产欧美精品第| 亚洲香蕉一区二区三区| 午夜视频在线观看中文字幕| 国产91高跟丝袜| 亚洲 欧美 在线 国产 精品| 在线观看91av| av在线播放亚洲色图| 久久久www亚洲精品一区| 欧美,日韩,中文不卡高清免费| 国产色三级在线| 在线天堂新版资源在线| 97超碰chaopengcpz自拍| 午夜久久成人| 精品国产亚洲av久一区二区三区| 少妇人妻偷人精品一区二区99| 131美女一区二区三区视频| 久久免费看黄色片| 国产精品国产一级av| 色吧精品久久| 日韩av大片在线播放| 色吧亚洲综合| 一个人免费观看的www在线观看| 亚洲乱码二区三区| 国内精品在线免费视频| 九七高清国产自产拍| wwww.xxxx亚洲| 99人妻免费精品二区| 成人 av网站| 亚洲国产日韩成人精品| av在线观看天堂网| 人人参与人人尽力人人享有人人负责 | 夜夜春夜夜爽试看视频| 激情亚洲国产av| 永远第一名电视剧在线观看| 性感美女脱光内裤让人捅视频| av网站可以在线观看的| 一级片完整版免费| 国产亚洲aⅴ在线观看| 亚洲国产成人精品福利| 亚洲午夜福利在线播放网址| 一级a爱电影免费观看| 好色先生草逼视频| 精品欧美aⅴ一区二区三区在线看 99精品国产三级在线观看 | 久久精品蜜桃国产亚洲| 青春草在线黄色视频| 亚洲精品国产欧美在线一区二区| 美女一级毛片观看| 一二三区日本视频| 色播在线永久免费视频观看| 亚洲av欧美av在线观看| 日韩黄色一级视频| 亚洲美女久久久| 久久精品国产99精品女同| 99re.视频在线观看| 黑人猛操亚洲美女黄片| 亚洲热大香蕉| 美女露出奶头(嘿嘿视频)| 日日摸日日碰夜夜爽暖暖视频| av在线免费不卡毛片| 在线观看91精品国产麻豆| 亚洲美女视频免费高清在线看| 亚洲成a人国产精v品| av人人澡人人爽人人夜夜久久| 披荆斩棘的哥哥高清在线观看| 午夜影院①区| 欧美日韩久久精品免费| 被黑人舔高潮| xxxx欧美熟妇free xxxx| 亚洲免费av观看网址| 黑丝高跟啪啪啪| 亚洲国产精品成人综合在线| 午夜久久福利片| 亚洲男同在线观看视频| 丝瓜视频黄片免费| 99国产精品18久久久久一区二区| 国产不卡毛片| 日韩亚洲一区中文字幕在线| 黑人粗进入欧美aaaaa| 男女进入下面啪啪视频| av免费在线观看永久网址大全 | av在线观看天堂网| 国产成人精品久久久久久精品日日| 久久久久中文字幕免费观看| 中文国产成人精品久久久| 亚洲电影中文字幕在线| 爆操中文字幕乱码在线观看| 日日夜夜狠狠人妻| 看黄片欧美日韩国产| 免费欧洲成在线播放| 国产看片地址| 免费黄色欧美一级视频| 国产激情在线观看| av视频免费观看在线看| 国产成人精品综合久久久久app | 国产三p一区二区视频| 森泽佳奈av视频在线观看免费| 免费黄色娇嫩av| 久久精品成人一区二区三区蜜臀 | 一个人高清www视频| 最近2019中文字幕在线看6| 免费美女高潮视频| 免费看不卡av网址| 欧美激情精品久久久久久国产| 五月婷婷丁香在线看| 高潮呻吟求饶视频| 国产麻豆精品白丝久久av网站| 午夜老司机福利免费看| 老鸭窝av免费在线观看| aⅴ婷婷国产精品国在线av | 一级黄片久久看| 国产在线精品免费| 99久久精品国产免费男女| 永久免费观看的黄网站| 爱爱下面视频| 欧美色视频日本高清| 在线播放成人av| 国产自拍福利视频在线观看| 青青草视频网在线观看| 电影专区一区二区另类| 在线观看成人av天堂不卡 | 精品一卡2卡三卡4卡含羞草| wwwwxxxx尿尿| 最黄a级毛片| 乱系列牛牛av| 久久久久麻豆精品国产| 国产三级对白视频| 国产在线视频观看一区| 美女视频很黄免费| 日韩欧美一区中文字幕在线观看| 97在线观看视频欧美| 舔少妇大黑乳头视频| www.免费色| 又粗又长又爽久久毛片| 国产精品亚洲а∨天堂免剧情| 午夜免费福利观看| 日本18禁电影推荐| 黄片国产视频不卡顿| 97久久偷偷做嫩草影院免费看| 亚洲激情综合五月婷婷| 成人黄色视频| 黄 色 成 人天堂| 不花钱的毛片| 外国黄色片在线观看| 午夜精品久久久久久99热乱码| xxxx欧美熟妇free xxxx | 国产精品午夜福利18禁视频| 美女舔茎视频| 公妇公侵犯中文字幕| 精品九九人人做人人爱| av免费国产网站| 亚洲精品久久久w| 亚洲av免费在线看片| 亚洲av老司机在线观看| 亚洲精品欧美日韩在线| 性少妇videoxxx欧美| 亚洲人亚洲精品成人777| 国产老妇伦国产老妇熟女视频| 人妻少妇激情久久精品| 国产欧美日韩综合在线观看一区二区 | 一个人免费观看的www在线观看| 久久久中文字幕人妻一区| 亚洲国产精品久久免费观看 | 天天摸夜夜添夜夜| 亚洲丝袜av在线| 亚洲日本视频在线一区| 国产精品三级电影| 欧美在线视频97| 美女视频全黄免费| 免费一级做a爰片性色毛片| 18禁免费网站在线看| 永久福利在线看| 69人妻人精品一区二区久久| av人妻中文字幕在线| 国产高清久久久国产精品| 7777精品久久久大香蕉| 李毅动态图啪啪啪| 5精品久久久| 欧美日韩中文字幕在线免费| 精品视频区图片区小说区| 美女被脱内裤视频| 欧美精品亚洲专区| 18女人小正毛片| av片国产在线观看一人观看| 久久69精品久久久久免 | 线上视频免费观看| 国产--精品一区二区三区| 国产老熟女www| 欧美av在线播放网址| 免看一级a一片在线观看免费| 精品国产不卡一区二区三区不卡 | 亚洲大成人www九九久久| 少妇裸体淫交视频| 最近中文免费字幕5| 99国产精品免费人妻蜜桃| 成a人片在线观看网址| 欧美精品一区二区精品在线| 成人国产少妇| 高清在线观看视频不卡播放| 视频小说图片一区| 亚洲熟妇熟女ⅹxxx蜜桃| 69精品人人人妻人人玩青青| 午夜久久久久亚洲欧美| 免费在线观看无遮挡| 国产伦精品一区二区三| 亚洲人成77777国产精品影院| 欧美性xxxx乱大交| 91免费在线观看电影| 99国产精品久久全免费| 久久人妻少妇全集| 国内精品一线二线三线区视频 | 讲究人电影完整版免费观看| 色偷偷之亚洲男人的天堂| 亚洲国产精品欧美一级| 国产成人在线99| xxxyes日本| 99热这里只有精品98| 国产欧美精品一区二区三区99 | 久久av网站国产| 成人福利观看视频在线播放| 看黄色片人与兽| 性欧美xxxxporn| 亚洲午夜成激人情在线影院 | 披荆斩棘的哥哥高清在线观看| 国产黄色片在线观看| 免费人成在线观看视频品爱网址| 亚洲动漫av在线激情| 日本av涩情| 日韩精品一区二区三区中文√| 亚洲香蕉一区二区三区| 最新黄色免费在线网站| 女人爽到高潮嗷嗷叫视频免费| 麻豆激情四射在线播放视频免费观看 | av 在线 蜜桃| 国产欧洲亚洲一区二区| 好色视频久久| 亚洲精品国产大片在线观看| 91香蕉精品| 久久就是精品| 国产一级区二级区三级区精品| 午夜久久久精品| 女子高潮喷水免费视频| 国产男女黄视频在线观看| 亚洲av日韩精品一区二区不卡| 亚洲国产精品久久免费观看| 精品人妻一区二区三区中文字幕 | 新版天堂资源在线中文8| 国产成人一区二区啪在线观看| 亚洲第一精品久久| 国产二区视频在线免费观看| 亚洲国产精品成人久久综合| 国产在线av亚洲| 精品99免费视频| 老司机av电影网免费| 色999日韩| 人人妻人人爽人人澡人人精品| 国产精品视频免费在线播放| 91精品国产自产在线观看福利,| 亚洲午夜久久久久噜噜噜| 欧美乱妇狂野欧美在线看| 免费成年轻人一区二区三区精品视频| 火山口上的2个人在线观看| 久久久久久av免费网站| 老鸭窝成人av电影| 久久成年免费电影| 国产精品99久久久久久成人| 男人操女人黄片| 亚洲av成人一区久久| 国产麻豆全集| 在线视频 欧美日韩一区| 在线视频一二三四| 亚洲av老司机在线观看| 久久久99久久精品| 国产大片成人啪av在线观看| 国产91色|欧美| 111111少妇免费影院| 超逼视频免费国产| 天堂网av东京热| 午夜福利视频在线精品| 黄片成年视频| 国产精品第44页| 亚洲国产精品嫩草影院99| 亚洲国产成人精品av片| 久要视频在线免费观看| 日本黄色av毛片| 波多野结衣在线观看一区二区三区| 青青草原原亚洲| 亚洲国产精品一区二区a| av手机在线中文| 中文字幕日韩久久一区| 精品丝袜美腿在线| 国产精品亚洲а∨天堂网| 色午夜亚洲一区| 国产香蕉久久精品综合网| 黄色在线免费下载观看| 性少妇videoxxx欧美| 亚洲a级毛片在线播放| 国产免费成人久久久| 她也色免费在线| 午夜福利100092| 美女乱子伦高潮在线观看完整片| 国产黄色片在线观看| 嫩草影院久久久| 美女无遮挡视频免费观看| 亚洲美女黄色视频免费观看| 免费观看人成视频播放| 91国语精品自产拍在线观看 | 麻豆激情四射在线播放视频免费观看 | 琪琪影院一区二区| 五月婷婷丁香六月在线| 女人和男人黄色| 亚洲无av高清一区不卡| 18禁男插女| 好男人在线观看视频高清完整版 | 成人短视频一区二区三区| 亚洲熟妇自偷自拍另欧美| 一二三四视频社区在线1| 亚洲中文字幕一区二区三区| 久久就是精品| 亚洲最大av网站在线播放| 国产69孕妇久久久久毛片| 日韩高清在线观看不卡一区二区| 亚洲精品成人久久久久一区| 久久99精品久久久久久不卡 | 女人特级毛片18| 欧美综合色网站| 亚洲成人av观看| 婷婷国产成人一区二区| 在线av91| 欧美撸逼视频| 久艹精品视频在线| 无遮挡av在线免费观看| 桃花.tv在线观看| 亚洲欧美色网站| 外国老逼xxx| 日日摸夜夜添狠狠添欧美| 日韩 国产 欧美 在线| 黄色|级毛片| 国产欧美日韩欧美专区发布| 久久99精品国产麻豆婷婷| av色一区二区| 国产精品大片一区| 在线视频中文字幕在线一区| 夜夜春少妇欧美| 视频在线观看免费的| 亚洲av黄片在线观看| 啊啊啊一区二区三区在线观看| 亚洲成年播放网站| 美女露出乳头在线高清视频| 成人情色免费视频| 欧美精品青青久久久久久久久久久| 美女少妇网站视频在线观看免费| 国产噜噜噜在线观看| 久久人人爽人人爽人人片av密臀| 亚洲久久av网站| 精品国产999久久久免费| 老师来了在线观看完整版免费| 日韩视频在线中文字幕| 亚洲国产精品人人做人人爽| 欧美一区二区三区十区| 久久人妻少妇全集| 两个人高清视频免费看| 免费人成再在线观看视频| 夫妇交换免费观看| 99在线视频99| 欧美视频一区二区精品在线观看| 一级a一级a爰片免费免视频| 另类av日韩亚洲| 中国小仙女视频一区二区三区免费观看| 国产精品久久久久精品三一级正片| 久久国产乱子伦精品免费| 日本岛国爱情动作片免费在线观看| 精品一区二区久久久久久| 高潮呻吟求饶视频| 给我看免费高清视频成人| 欧美日韩高清免费不卡| 免费伦理电影视频| 国产女人真实高潮毛片| 国产一级内射/视频| 在线av大香蕉| 97超超级碰碰碰| 亚州国产精品乱| 国产无遮挡免费视频网站在线观看| 97久久精品人人人妻人| 成人青精品视频99在线观看免费| 夜夜激情夜夜爽| 国产成人午夜精品影院| 亚洲欧美精品一| 亚洲日本中文字幕久久| www漫画在线漫画免费观看 | 国产精品一区二区三区成人| 人人妻人人爽精品| 在线免费av网址观看| 久久这只有精品| 精品人伦1区2区3区蜜桃| 亚洲精品又黄又爽无遮挡 | 精品日产一卡2卡三卡不卡| 欧美日韩动漫国产| 爱抚乳头视频| 五月爱婷婷六月丁香色 啪啪| 久久99国产综合精品女同| 最新高清中文字幕在线1| 亚洲成网在线观看| 鸡蛋黄红色好还是黄色好| 男女进入下面啪啪视频| 国产在线观看啊| 免费的人成网站大全在线观看| 品久久久久久久久久久99高清| 亚洲欧美在线一区二区三区| 日韩在线观看av网站| 好男人在线完整版| 日韩免费av观看| 国产免费美女日b视频| 一二三四免费观看在线视频中文版| 黄色av高清在线| 男女叉下体动态图| 免费无遮挡黄h漫画在线看| 欧美三级在线观看精品| 欧美三级国产三级日韩三级| 日韩精品笫一页| 亚洲人成色网| 亚色中文成人yase999co| 三级黄色免费观看网站| 国产精品三久久久久久精品三级| 中文国产成人精品久久久| 亚洲欧美另类图片久久……| 大香蕉eedd8899.com| 黄色三级日韩欧美| 一个人高清www视频| 久久成人精品国产免费| 亚洲精品色影院| 日韩www在线免费观看| √天堂中文官网在线bt| 美女视频免费的黄的| 中日产精品1卡二卡| 五月婷婷六月丁香中文字幕| 午夜免费观看www| 久久免费妇女高潮看片| 日产二卡三卡四卡| 中文字幕免费在线看线人动作大片| 中文字幕国产成人| 在线观看免费国产亚洲| 日韩欧美大片免费观看| 高清日韩av在线不卡| 老师上课把跳d突然开到最大| 国产精品亲子伦av一区二区三区 | 黄色精品在线观看| 最近高清中文在线字幕在线观看1 人人参与人人尽力人人享有人人负责 | 亚洲av色福利天堂久久入口| 一二三四伦乱视频社区在线| 一个人在线观看的高清视频| 国产精品久久国产三级国| 亚洲熟女综合色一区二区三区网站| 天堂网资源中文最新版www| 国产亚洲精品久久久网站| 色免费视频网站| 久久精品国产最新地址| 日韩av不卡在线观看一区二区| 一个人在线观看的高清视频| a中文天堂在线| 国产在线高清精品1314| 亚洲欧美一区二区久久精品国产| 国产精品大久久| 18女人小正毛片| 韩国三级精品三级在线专区| 夜夜夜难熬夜夜熬| 国产高清中文字幕| 看黄色录像看黄色录像| 欧美日本在线不卡二区| 在线免费看午夜精品福利| 男女那个视频免费观看| sexsex94.com| www.99riav日韩国产| 最大中文字幕视频大全免费| 天天躁日日躁夜夜操| 免费av爱爱| 亚洲中文字幕一区| 人人为安全安全为人人演讲稿| 一个色综合国产色综合| 影音网站av| 被黑人侵犯若妻中文字幕| av91在线观看| 在线av91| 中文字幕日韩久久一区| 亚洲在线日韩精品| 好男人免费在线观看完整版| 99久久免费高清热精品6_99 | 亚洲自拍品质视频在线观看| rfdjxh jiuse6666| 亚洲欧美日韩欧美一区二区三区| 亚洲天堂久久婷婷| 久久久久av入口| 久久这只有精品| 亚洲av四区| 国产精品扒开腿做爽爽的免费软件| 久久精品国产99久久精品精品 | 香蕉成人久久| 99爱在线视频精品| 久久久成人在线视频在线免费视频| 欧美黑人又粗又长在线观看| 99精品视频在线播| 男人给女人添p添到高潮| 要看免费av毛片| 99re6热在线视频精品| 亚洲国产成人影院在线播放| 爱爱午夜黄片免费小视频| 中文字幕乱码亚洲无| 精品一卡2卡3卡4卡新区在线| 亚洲电影网站在在线播放 | 婷婷精品国产a久久综合| 国产精品理论片久久| 哺乳期能用三醇卡泊吗| 欧美日韩亚洲网址| 久久精品国产亚洲av第一| 欧美黄色三级a| 国产不打码视频在线观看| 女生裸体无遮挡免费视频| 国产精品伦理一区二区三区| 久久久久精品av毛片| 天堂色av噜噜| 女教师娇喘潮喷抽搐在线视频| 老司机午夜福利视频一区二区| 久久人妻灰丝| 欧美在线黄色视频| 成年美女视频在线观看| 国产久久蜜桃| 最近2019免费中文字幕6| 国产精品一区二区免费在线| 男女黄色视频在线观看网站| 在线看免费不卡的av| 91精品二区三区在线观看| 黄色大片年轻的母亲| 青青草视频在线观看网站免费| 中文字幕亚洲视频在线播放| 久久九九久久久久三级精品| 色01永久在线视频| 国产日批精品视频免费观看| 欧美极品欧美激情在线观看| 免费一成人一区二区二区在线播放| 久久夜夜中文字幕精品天堂av| 亚洲人成网站在线播放942| 精品国产第5页| 亚洲乱码一区二区三区在线播放| 亚洲国产精品成人综合久久久| 人妻视频二三区| 日产乱码卡一卡二卡3在线| 在线亚洲人成电影网站| 2000年人人享有卫生保健的时间是 | 快穿之媚色h攻略| 一区二区免费视频中文乱码软件 | www.男人午夜天堂.com| 日韩最新视频一区二区三区| av日韩在线影院| 男人的天堂在线观看国产| 欧美成人精品一区二区三区990| 久久久久久精品a级毛| 白带颜色成黄色| 丰满的熟女乱又伦| 久久久久久久久av网站| 国产日批视频免费在线观看一区二区 | 四虎在线播放免费人成视频| 香蕉国产在线观看| av午夜秋霞| 国产一二区色在线| 国内久久久久久精品影片| 国内精品自在自线视频| 日韩av电影天堂一区二区| 久久久国产乱子伦精品| 久久精品一区别| 一级做a爰片久久毛片看看| 欧美综合在线中文字幕| 成年人黄色视频免费软件| av尤物网站在线观看| 中文字幕精品一区二区三区| 美女大秀在线观看| 嗯啊骚9av网站| 第一市场导航| 黄黑皮穿什么颜色衬衫好看| 精品久久-国产av| 最新av发布页| 国产一级特黄特色大片| 少妇在线免费视频| 精品国产一二三区在线观看| 啦啦啦视频在线播放免费!| 熟女少妇人妻区| 免费看一级一片成人看片| 我要看成年毛片| 久久免费电影麻豆| 亚洲一区自拍视频在线观看| 一级床上大片| 日本少妇被黑人粗大的猛烈进| 亚洲电影中文字幕在线| 久久国产精品人妻丝袜网站| 一区二区三区乱码aⅴ| 久久成人免费视频播放| 亚洲久久综合网| 永久三级在线观看| 草草久久精品国产一区二区三区| 欧美综合区自拍亚洲综合绿色| 日韩亚洲国产中文字幕欧美| 久久久久青草太香综合精品| 一边摸一边亲视频| 国产精品一区二区青青草| 高潮痉挛大喷水在线观看| 国产专区一卡二卡| 国产精品国产自产拍高清av| 亚洲人成影视aⅴ38| 女人被爽到呻吟gif动态图免费| 成年人网站视频播放| 午夜福利一区二区三| 欧美成人午夜精品免费视频| 亚洲成a人片在线观看-国| 国产成人乱码一区二区三区视频 | 国产亚洲一级精品久久久| 国产精品久久久久精品三级18-免费| 网址视频在线成人亚洲| 午夜福利,在线观看| 亚洲天堂av| 老鸭窝免费在线观看| 亚洲日本电影一区二区三区| 精品亚洲av乱码一区二区三区| 怡红院在线亚洲| 美女高潮喷水在线观看| 亚洲欧美日韩久久精品,亚洲欧美日韩| 国产精品午夜福利18禁视频| 天堂8在线中文在线| 久久国产精品2| 精品午夜色在线观看| 97se亚洲国产综合自在线| 15yc午夜福利在线观看| 国产精品高清在线观看| 免费人成视频网站在线| 日本黄色激情网站视频| 国产一区二区三区亚洲视频| 久久人人爽人人人人片av| 美日韩中文在线一区二区三区| 免费不卡毛片在线直接观看| 国产丝袜女久久| 成人午夜在线观看你懂的| 日本裸体啪啪无遮挡免费| 国产剧情欧美日韩中文在线| 亚洲国产麻豆精品系列| 人妻久久久久久精品免费免费| 国产精品爽爽久久久久久蜜桃小说| 精品成人av一区二区三区,国产无套| 又硬又粗又爽的视频| 亚洲伊人成色综合网| 中文字幕成人乱码熟女免费| av不卡免费播| 午夜福利精品电影网| 国产在线视视频| 国产高清男女| 两个人在线视频免费观看| 国产一精品一av一免费爽爽| 日韩av在线高清| 夜夜躁狠狠躁日日躁aab视频| 最好看的日韩视频2019中文字幕| 香蕉久久99一区二区三区| 自拍偷自拍亚洲精品www| 黄色片毛片免费的| 在线国产视频精品视频| 亚洲av少妇一区二区在线观看| 国产激情视频一区二区三区| 狠狠干夜夜躁| 全免费a级毛片免费网站| 精品一卡二卡≡卡四卡精品| 18禁黄网站禁片无遮挡| 久久成年免费电影| 男人女人的免费视频| 神马影院午夜伦理视频一区| 欧美一区二区精品久久精品| 91午夜福利国产秒播在线观看| 永远第一名电视剧在线观看| 亚洲精品久久久久午夜福利网站| 久久久国产精品久久久久| 欧美电影精品一区二区三区| 变态videossex潮喷另类| 久久久免费精品国产一区二区| 偷女生内裤视频| 久久精品国产亚洲av麻豆.| 最黄最色的靠逼视频| 成年一级黄色视频在线上播放| 国产黄片在线免费视频观看| 97人妻碰碰碰在线视频免费| 成年av动漫网站大全全| av在线播放一区二区三区| 久久精品国产蜜臀av| 扒开女人下部添高潮的视频| 国产白丝袜美女久久久久久久| 美女毛多水做爰国产毛片影视| 亚洲国产精品柏久久| 亚洲av人人爽人人爽aⅴ人人片| 亚洲精品国精品久久9999热| 日韩高清人妻一区二区三区不卡的av| 视频图片小说专区| 亚洲精品国产av电影| 男人天堂国产一区| 毛片一区二区三区四区精品| 在线观看的片www免费观看| 欧美一区二区精品久久精品| 免费一看一级毛片免费a| 久久久久久精品网站人妻| 99国产成人精品av电影在线看| 久久久99久久精品| 午夜人伦视频在线观看| 欧美日韩在线网站免费观看 | 人成免费视频观看在线| 久久精品久久免费久久| 久久精品在线国产| 男女内射视频免费观看国产| 国产精品自在欧美一区| 国产伦精品一区二区……| 一区二区三区国产亚洲欧美| 国产av xxx| av伊人亚洲| 日韩亚洲欧美专区| 精品国产不卡一区二区三区不卡 | 综合图区亚洲偷自拍熟女| 成人免费中文字幕电影| 最新日本视频在线观看| 免费的国语对白av视频| 在线亚洲人成电影网站色www| 国产乱视频在线观看播放| 欧美日韩亚洲欧美在线| 中国老熟妇真实乱子视频| 免费黄软色哟哟| 欧美成人伦理剧| av在线播放最新| 毛片在线看的免费网站| 老司机av电影网免费| 15yc午夜福利在线观看| 国产综合乱码一区二区三区四川人| 青春草在线视频网址观看| 中文字幕乱码在线人妻av一区二区 | 国产色老太色老太视频在线| 国产91高跟丝袜| 国产av精品免费播放| 亚洲av手机在线一| 欧美性精品xxxxx| 制服诱惑 一区| 自拍91av视频| av电影亚洲免费看| a级毛片一级毛片| av黄网站免费永久在线观看| 麻豆国产精品蜜桃va在线播放| .com久久人人| 68av首页| 日韩中文字幕在线播放网站| 亚洲欧美最大中文字幕网| 久久久久久狠狠综合一本| 欧美乱妇高清无乱码日本一级毛片| 亚洲精品影视一区| 日本在线不卡v| 成色综合网站在线观看| 亚洲六月丁香六月婷婷| 亚洲青青草原国产| 二类卡需要交年费吗?| 叼嘿网站在线观看| 一级片免费播放| 夜夜激情夜夜爽| 午夜理论片黄色| 国内精品一线二线三线区视频| av电影在线亚洲| 色婷婷av一区二区三区免费观看| 日韩黄色视频| 美女高潮喷水av免费观看| 在线播放毛片| 国产成人精品系列在线观看| 亚洲av网站不卡| 日韩精品亚洲婷婷中文字幕| 亚洲 精选 在线播放| 久久久久久国产三级精品| 国产精品一区99久久久久久久久 | 久久99精品久久久久久久夜夜爽| 亚洲91av视频在线观看| 丰满成熟的女人片aaa久久久| 日产精品1卡2卡三卡四卡二卡| 亚色世界地址| 曰本av毛片| 国产毛片精品一区二区在线| 国产乱弄视频在线观看| 精品久久久久久久久久久久av| 欧美乱妇高清无乱码在线视频 | 欧美伦理电影第一页| 99re视频在线精品免费播放| 久久久国产99久久国产一丝袜辣| 美女被破处国产在线| 国产亚洲欧洲激情| 扒开双腿疯狂进出爽爽动态图| 亚洲性夜色夜夜综合网| 女性裸身无遮挡| 老司机午夜福利合集| 在线播放毛片| 色偷偷人人爽| 日本一区二区三区dvd视频在线| 男人天堂av中文字幕| 性欧美videos高清精品| cliv精华| 黄色小网站免费看| 亚洲中文字幕欧美日韩| 11孩岁女精品毛片免费| 国产福利视频在线观看精品| 亚洲综合 国产一区| 国产av片久久久久久久| 狂野欧美性猛交xxⅹ免费视频| 亚洲av一区二区观看| 国产亚洲精品入口a| 日本欧美卡通动漫在线| 欧美va在线一区| 国产999精品免费视频| 聚色影视.日韩| 中文字幕伊人久久| 亚洲风情怡红院| 国内一区二区三区日韩一区视频 | 夜夜福利yeyefulicom| 中文字幕熟女福利av| 欧美人与动性zozozo| 久久久久麻豆精品国产| 精品视频在线在线观看97| 欧美色欧美亚洲另类久久二区| av侵犯字幕在线| 国产亚洲久久久久9999| 天天干天天夜夜操| 成人av动漫网址| 欧美午夜精品久久久久久蜜臀下载 | 91精品毛片免费观看| 性生活在线观看欧美| 九九视频在线视频精品| 国产成人精品综合久久久免费观看| 精品毛片免费看一区二区三区| 欧美熟妇呻吟猛交xx性丨| 黄色片久久久久久| 久久久久精品国产蜜桃| 老公边吃奶边插| 人干人的人时人人人人人人| 岛国毛片午夜久久| 18禁男男无遮挡大尺度| 免费av大片网站| 欧美一区二区三区三级在线观看| 久久久久久av成人一区二区三区| 视频免费成年| 亚洲伦视频在线观看| 日韩高清动作| 久久免费特级黄片| se亚洲激情| 少妇人妻在线视频| 色哟哟—国产| av不卡网站在线观看| 美女视频很黄免费| 丝袜高跟国产一区| 女性高潮喷水视频免费| 亚洲综合成人影院| 高清欧洲美女在线视频| 欧美日韩国产电影在线观看| 成色综合网站在线观看| 95国产在线播放| 国产欧美在线观看精品一区二区| 日韩在线观看视频在线观看网站| 国产黄色高清视频在线观看| 亚洲小视频免费在线观看| 久热精品视频在线观看1| 香蕉影院av| 日本高清视频一区播放| 国产伦精品一区二区……| 日韩在线视频一区二区三区四区| 免费国产一级片内射老妇| 欧美一区二区三区精品在线| 欧美xxxxxxxxxxx片| 日韩亚洲av官网| 亚洲国产精品成人久久综合| 色www永久免费视频观看网站| 午夜久久成人| 亚洲精品一区二区三区网址| xxxyes日本| 亚洲国产精品久久久久青草| 久久久久性免费视频| 欧美在线一区二区三区四区| 懂色国产又黄又猛| 国产在线播放一区二区三区| 国产—级久久久久精夜 | 手机看片男人天堂| 可以在线免费观看黄色视频的网站| 精品国产品久久久久久小说| 日韩一区二区三区av在线观看 | 我和岳互交换夫妇中能4pwxx| 欧美性猛交xxxx乱大交丰| 日本高清www色视频总站免费| 国产精品久久一区三区| 欧美综合在线第一页| 日本波多野结衣一区二区| 边插边舔边吃奶| 亚洲av毛片免费在线观看| 国产 欧美 日韩免费| 九九免费精品视频在线观看| 亚洲国产欧美在线人成精品| 丰满岳乱妇高清视频在线观看| 欧美在线精品一区二区三区| 尿尿呈明黄色| 综合 久久 一本| 日韩亚洲欧美熟女网站| 日本高清中的另类视频| 免费美女视频毛片| 国产精品亚洲精品777| 欧美亚洲综合成人专区| 啪啪动态图在线| 观看黄色视频的网站| 日日躁夜夜摸月月添添添的| av色一区二区| 香蕉在线看一区二区| 美女被扒掉内裤视频| 日本妇人九九| 国产精品www在线免费观看| 永久免费在线观看黄片视频| 免费看黄色毛片| 人妻免费视频亚洲| 又黄又污无遮挡| 精品久久-国产av| 在线天堂新版资源在线| 男人在线视频免费观看| 999成人精品在线观看|