An active safety buffer device of an elevator comprises an elevator car, and a plurality of buffer supports capable of being switched between a folded state and an unfolded state are arranged at the bottom of the elevator car. The elevator car is provided with a driving mechanism for controlling the buffer support to keep a folded state or an unfolded state and a controller capable of controlling the driving mechanism to work according to the over-speed descending speed of the elevator car. When the controller knows that the elevator car descends in an overspeed mode, the controller controls the driving mechanism to release the buffer support, the buffer support is overturned and unfolded downwards under the action of gravity and the elastic force of the driving spring until the buffer support is vertically arranged, the buffer support keeps the unfolded state to make contact with the bottom of the pit in advance for buffering, and the overspeed descending speed and impact force of the elevator car are reduced; the buffering support can be combined with the buffer in the pit for buffering and damping, the purpose of double buffering and damping is achieved, and the safety of passengers is guaranteed.

    一种电梯主动安全缓冲装置,包括电梯轿厢,所述电梯轿厢的底部设有能够在折叠状态和展开状态之间转换的若干个缓冲支架;所述电梯轿厢上设有控制缓冲支架保持折叠状态或展开状态的驱动机构、能够根据电梯轿厢超速下降速度控制驱动机构工作的控制器。当控制器获知电梯轿厢超速下降时,控制器控制驱动机构放开缓冲支架,缓冲支架在重力和驱动弹簧的弹力作用下向下翻转展开直至呈竖直设置,保持展开状态提前接触底坑的底部进行缓冲,降低电梯轿厢超速下降速度和冲击力,让缓冲支架能够与底坑内的坑内缓冲器进行组合缓冲、减震,实现双重缓冲减震的目的,保证乘客的安全。


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    Title :

    Active safety buffer device for elevator


    Additional title:

    一种电梯主动安全缓冲装置


    Contributors:

    Publication date :

    2022-11-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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