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How Much Impact Force Can the Elevator Landing Door Bear?

In recent years, there were many cases of people falling into the hoistway after smashing the elevator landing door when drinking. There were also cases of people crashing into the hoistway after smashing the elevator landing door while playing around the elevator. So how much impact force can the elevator landing door bear?


Canadian standard is the first one to require elevators to be provided with an upward over-speed protection device. When a force of 5000N is applied to the landing door, the deformation of the landing door cannot exceed 20mm and the landing door should not be removed.


Later, American and Canadian standards were unified, namely the same standard with two serial numbers. The purpose of the standard is to prevent the danger of two people falling into the hoistway when playing near the elevator.


If a person hits the elevator landing door at high speed, will there be a fall accident?

A long time ago, there was an accident in the United States. A college student spilled soapy water on the corridor of the dormitory, and then slipped and played on it, only to crash into the elevator landing door and fall into the hoistway to die. In this case, can that standard avoid the accident? The answer is yes. American elevator experts have calculated (according to the law of conservation of momentum and high-speed cameras, they have determined the contact time of impact), and believed that 5000N can defend against the impact force caused by a 115kg football player hitting the elevator landing door when running at high speed. The landing door will not be damaged.


The elevator standard implemented in China requires pendulum test of elevator landing doors, which will greatly improve the safety level of elevators. This standard puts forward higher requirements on the strength of landing doors for elevators that may suffer intentional damage.

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