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The company's core business covers: elevators, intelligent mechanical garages, lifting machinery, high and low voltage distribution cabinets, intelligent security, urban lighting, and central air conditioning systems
Release date:
2025-08-26
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Abstract
In recent years, elevators have become an integral part of our daily lives, yet alarming terms like "elevator fall," "elevator slide," and "elevator scare" keep popping up. But what is the real situation?
Can you "escape" by prying open the elevator doors when trapped?
“The elevator has two sets of doors—hall doors and car doors. The hall doors are equipped with an automatic locking mechanism that, once engaged, prevents the doors from opening unless the elevator car has arrived precisely at the landing and the hall and car doors align perfectly. In such cases, the mechanical lock hook remains securely locked and cannot be opened under any circumstances. In an emergency, only elevator rescue personnel, using a specialized triangular key, can unlock the mechanism and safely open the hall doors.”
Will the elevator suddenly drop while running?
The elevator is equipped with at least three safety devices.
First of all, elevators are equipped with brakes that, in the event of a malfunction or power failure, will clamp down on the traction motor to stop it from turning, ensuring the elevator's safety.
Secondly, in the elevator shaft where the elevator operates, both upper and lower limit check switches and forced deceleration switches are installed. If the elevator reaches either the top or bottom end of its travel, the elevator system will automatically enter a forced deceleration mode and assume a predetermined state.
Third, when the speed governor detects that the elevator is overspeeding, it activates the safety gear brakes, firmly locking the car onto the guide rails. "It’s like two giant clamps—once the elevator starts to slide down uncontrollably due to excessive speed, these clamps grip tightly, preventing a catastrophic fall." In the unlikely event that the elevator rapidly descends all the way to the bottom floor, there’s still a buffer at the base of the shaft to absorb and soften the impact upon landing. During normal operation, if a minor malfunction occurs—such as a problem with the elevator’s floor-detection signals—the system automatically enters a protective restart mode. In this state, the elevator halts any ongoing button commands and returns either to the lowest or highest floor to reset the floor data. Because passengers are unable to control the elevator during this process, and yet the elevator continues running nonetheless, many people mistakenly believe the elevator is "slipping" or "gliding" downward.
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