The invention provides an elevator car accidental movement protection device, and relates to the technical field of elevators, the elevator car accidental movement protection device comprises a hoistway wall and an elevator car, a speed measuring device is arranged on the elevator car, a buffer groove is formed in the hoistway wall, a buffer blocking piece is arranged in the buffer groove, and a buffer moving piece is connected to the outside of the elevator car through a telescopic device; the buffering movable piece is inserted into the buffering groove and abuts against the buffering blocking piece for buffering, and the buffering movable piece abuts against the bottom wall of the buffering groove to stop the elevator car. Buffering and speed reduction are conducted on accidental movement of the elevator car, meanwhile, early warning is conducted on passengers in the car, then when the buffering moving piece reaches the bottom wall of the buffering groove, the buffering moving piece is stopped through interaction of the buffering groove, and therefore the whole elevator car stops falling. By means of the device, it can be guaranteed that under the elevator flat layer door opening state, the elevator car does not fall in a large scale, passengers entering and exiting the elevator are protected against shear damage of the car door and the floor door, and the passengers in the elevator are protected against falling damage caused by elevator stall.

    本发明提供了一种电梯轿厢意外移动保护装置,涉及电梯技术领域,包括井道壁和电梯轿厢,电梯轿厢上设有测速装置,井道壁上设有缓冲槽,缓冲槽内设有缓冲挡件,电梯轿厢外通过伸缩装置连接有缓冲动件,缓冲动件插入缓冲槽内与缓冲挡件抵接缓冲,缓冲动件抵接缓冲槽的底壁止动电梯轿厢。本发明通过对电梯轿厢的意外移动先进行缓冲减速,同时对轿厢内乘客先进行预警,然后当缓冲动件到达缓冲槽底壁时被缓冲槽相互作用止动,从而使整个电梯轿厢停止下坠。本装置能够保证在电梯平层开门状态下,电梯轿厢不会发生大尺度下坠,保护正在进出电梯的乘客不会受到轿厢门与楼层门的剪切伤害,也保护电梯内乘客不会受到电梯失速造成的坠落伤害。


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    Title :

    Protection device for accidental movement of elevator car


    Additional title:

    一种电梯轿厢意外移动保护装置


    Contributors:
    WANG LEI (author)

    Publication date :

    2023-07-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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