The so-called "falling elevator" is mostly the process of restarting the elevator control system, just like the principle of restarting a computer after it crashes.
After the elevator crashes, it will touch the limit switch upwards or downwards, and at this time, it will feel a "clang", thinking that the elevator is broken, but in fact, it is restarting.
After the elevator restarts, the elevator control system will control the elevator to find the reference point (usually the first floor, middle floor, or the nearest floor). During this process, pressing the floor button by the passenger is ineffective and is a behavior set by the elevator to protect the passenger. The elevator car door will not open safely until the reference floor is reached.
If you encounter such a situation, don't panic. Wait for the elevator to come to a complete stop before leaving.
The elevator itself is a sophisticated transportation equipment that adopts various safety measures to eliminate safety hazards such as falls and roof impacts. As long as the elevator is used correctly and regularly maintained and inspected, there will be no safety accidents. The main safety protection devices include limiters, safety clamps, and buffers.
The speed limiter is an overspeed detection device, usually installed in the elevator machine room or at the top of the elevator shaft, and may also be installed in the pit. When the elevator exceeds the set electrical operating speed, it will cut off the safety circuit of the elevator through the electrical switch, thereby cutting off the system power supply. If the elevator continues to exceed the speed limit due to gravity or inertia, the mechanical action device of the speed limiter will be triggered, causing the speed limiting wire rope to stop moving and thus pulling the safety gear.
A safety caliper is a braking device installed at the bottom of an elevator car or elevator counterweight. It includes two parts: lifting mechanism and braking mechanism. The function of the lifting mechanism is to transmit the mechanical action of the speed limiter to the braking mechanism and make the braking mechanism operate. After the braking mechanism operates, its internal wedge-shaped block will clamp the elevator on the guide rail, preventing the elevator from falling further.
The buffer is installed in the bottom pit of the elevator shaft. Its function is to prevent the bottom of the elevator pier. At the bottom of the elevator pier, it can reduce impact and minimize damage to the elevator itself and passengers inside.
Have you read so much and understood? The elevator is very safe. So, if the elevator suddenly stops, don't try to pry open the door or flip out from the top like in movies. Stay in the elevator obediently, call for help on the phone, and rescue personnel will naturally come to assist you. When the elevator is under maintenance and the landing door is wide open, do not probe inward to prevent falling from a high altitude.