The invention discloses bidirectional safety tongs for an elevator. The bidirectional safety tongs comprise a supporting frame, a braking device and a lifting rod, wherein the braking device and the lifting rod are installed on the supporting frame. The supporting frame comprises a top plate, a middle frame body, a bottom plate and an inwards-concave side plate. The braking device comprises a flattong block, a bidirectional movable wedge block and a bidirectional fixed wedge block. One end of the lifting rod is fixed to a T-shaped block. The bidirectional movable wedge block is connected to aguide plate and a T-shaped sleeve through a pin column. A guide rail groove is formed in the middle frame body. The bottom plate comprises a left supporting plate and a right supporting plate. A leftsliding groove is formed in the left supporting plate. A right sliding groove is formed in the right supporting plate. A limiting groove is formed in the lower end of the middle frame body. The leftsupporting plate and the right supporting plate are each provided with an embedding groove respectively. A limiting protrusion matched with the limiting groove is arranged in each embedding groove. Connecting tables are correspondingly arranged on the left supporting plate and the right supporting plate. According to the bidirectional safety tongs, the distance between the flat tong block and a guide rail and the distance between the bidirectional movable wedge block and the guide rail can be easily kept normal, and installation is convenient; and in addition, due to the arrangement of an anti-interference mechanism, the safety tongs are prevented from generating false operation.

    本发明公开了一种电梯用双向安全钳,包括支撑架、安装在支撑架上的制动装置和提拉杆,所述支撑架包括顶板、中架体、底板和内凹侧板,所述制动装置包括平钳块、双向动楔块和双向定楔块,所述提拉杆的一端固定在一T型块上,所述双向动楔块通过销柱连接到导向板和T型套上,所述中架体上设置有导轨槽;所述底板包括左托板和右托板,左托板上设置有左滑槽,右托板上设置有右滑槽,所述中架体下端设有限位槽,所述左托板和右托板上分别设置有嵌入槽,嵌入槽内有与限位槽配合的限位凸,左托板和右托板上对应设置有连接台。本发明的平钳块、双向动楔块与导轨距离易保持正常间隙,安装方便,另外防干扰机构的设置避免出现安全钳产生误动作。


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    Title :

    Bidirectional safety tongs for elevator


    Additional title:

    一种电梯用双向安全钳


    Contributors:
    REN WEINA (author) / YU JING (author) / MIN FENG (author) / SUN DAMING (author)

    Publication date :

    2020-11-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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