The invention discloses a secondary protection device for opening an elevator landing door. The secondary protection device comprises a stop device installed on a landing door guide rail frame assembly and a plate beating device installed on an upper sill of a door machine. The stop device comprises a rotating connecting mechanism, a rotating plate installed on the rotating connecting mechanism, a stop rod installed on the rotating plate, a traction piece connected to the rotating plate and a stop block. When a lift car is not located at the position of the local floor, the traction piece is pulled to enable the rotating plate to rotate, the stop rod can keep away from the stop block, and the landing door continues to be opened. When the lift car is located at the position of the local floor and the door is opened, the rotating plate touches the plate beating device to rotate, the stop rod can avoid the stop block, and the landing door continues to be opened. The secondary protection device for opening the elevator landing door has the advantages that the secondary door opening process is achieved, and the safety effect that mechanical forced locking is achieved, secondary unlocking is conducted after safety is confirmed again, and then entering can be achieved is achieved; and the structure is simple, the shaft space is fully utilized, the cost is low, and universality and applicability are achieved.

    本发明公开了开启电梯层门用的二次保护装置,包括安装在层门导轨架组件上的止动装置、安装在门机上坎上的打板装置;止动装置包括转动连接机构、安装在转动连接机构上的转动板、安装在转动板上的止动杆、连接在转动板的牵拉件、止动块;轿厢不在本层位置时,拉动牵拉件使转动板转动,可使止动杆避开止动块,继续打开层门;轿厢处于本层位置时,开门时,转动板碰到打板装置发生转动,可使止动杆避开止动块,继续打开层门。优点有:实现二次开门过程,达到机械强制锁定、再次确认安全后再进行二次解锁,方可进入的安全效果;结构简单,充分利用了井道空间,成本较低,通用性和适用性。


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    Title :

    Secondary protection device for opening elevator landing door


    Additional title:

    一种开启电梯层门用的二次保护装置


    Contributors:
    DENG HAOBIN (author) / CHEN JINGXIN (author) / HUO JUNCHAO (author) / JIANG TINGXIN (author) / DING JIANBO (author)

    Publication date :

    2021-07-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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