Elevators are mainly divided into two categories: passenger elevators and freight elevators.
Vertical elevator consists of traction system, guide system, car, door system, weight balance system, electric drag system, electrical control system, and safety protection system. The safety protection system includes anti-overrunning stroke protection, anti-elevator overspeed and rope breaking protection, anti-person shearing and falling protection, buffer protection, alarm rescue device and other components.
Anti-overrunning travel protection: When the car continues to run beyond the top or lower end station, there is a protection device to prevent the car from running.
Protection against elevator overspeed and rope breakage: It is mainly composed of speed limiter-safety gear and rope clamp. A safety device that can stop the car in an emergency when the elevator is overspeeding, falling, and the suspension rope is broken and slack.
Anti-personnel shear and fall protection: mainly composed of elevator landing door and car door.
Buffer protection: It is composed of buffers and is the last link of the elevator safety system. It acts as a buffer when the elevator fails or squats down in an accident. Thereby, the elevator or people in the elevator are relieved from direct impact.
Elevators are special mechanical and electrical equipment. Like automobiles and other machinery and equipment, failures are inevitable during daily use and operation. When taking the elevator, you should use the elevator correctly, cultivate the awareness of safe riding, and improve the resilience of self-rescue and self-protection in elevator emergencies.
Elevator trapping is a manifestation of elevator failure. When a certain part of the elevator or the control system is abnormal, it will hinder the normal operation of the elevator, thus causing the elevator to trap people. Secondly, elevator trapping is a protective state made by the elevator when it fails, just like a leakage protector in an electrical circuit. When a line or equipment failure may endanger personal safety, it will automatically cut off the power supply. , so that the equipment is in a power-off state to protect personal safety. Finally, elevator trapping is a technical measure taken by elevator designers for safety design, and it is a control method to prevent elevators from running in abnormal conditions. Therefore, it is not dangerous for passengers to be trapped in the elevator. There is good ventilation in the elevator car. Passengers only need to relax, keep calm, and take proper measures to wait for rescue.
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