The invention discloses progressive elevator safety tongs, and belongs to the field of elevator accessories. The progressive elevator safety tongs comprise a supporting frame, supporting plates, U-shaped plate springs, guide blocks, positioning pins and limiting blocks, wherein the supporting plates are positioned on the inner side of the supporting frame, the U-shaped plate springs are positionedin the supporting frame and correspond to the upper parts of the supporting plates, the guide blocks are symmetrically installed on the inner sides of the U-shaped plate springs, the positioning pinsare used for fixing the U-shaped plate springs and the guide blocks to the supporting frame, and the limiting blocks are used for limiting the movement of the U-shaped plate springs. The positioningpins sequentially penetrate through the supporting frame and the U-shaped plate springs and are fixedly connected with guide rails, first through holes and second through holes for the positioning pins to penetrate through are formed in the positions, corresponding to the positioning pins, of the supporting frame and the U-shaped plate springs respectively, and the diameters of the first through holes and the second through holes are at least larger than those of fixed pins; a jaw is formed in the supporting frame; and at least two fixed pins are arranged between the guide rails and the supporting frame. The elevator safety tongs are simple and stable in structure, the stability of the installation positions of the plate springs can be effectively kept, the deformation risk of the positioning pins is reduced, and the elevator safety tongs is safe to use.

    本发明公开了一种渐进式电梯安全钳,属于电梯配件领域,包括支撑架、位于支撑架内侧的撑板、位于支撑架的内部对应支撑板上方的U型板簧、对称安装在U型板簧内侧的导向块、用于将U型板簧和导向块固定在支撑架上的定位销以及用于限制U型板簧移动的限位块;定位销依次贯穿于支撑架和U型板簧并与导轨固定连接,支撑架和U型板簧对应定位销的位置处分别开设有用于定位销贯穿的第一穿孔和第二穿孔,第一穿孔和第二穿孔的直径至少比固定销的直径大;支撑架上开设有钳口;导轨与支撑架之间至少设置有两个固定销。该电梯安全钳结构简单、稳定,可有效地保持板簧安装位置的稳定性,降低定位销形变的风险,使用安全。


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    Title :

    Progressive elevator safety tongs


    Additional title:

    一种渐进式电梯安全钳


    Contributors:
    XU DONGSHENG (author) / ZOU ZHI (author) / ZENG QINGPU (author) / YIN DEWEN (author) / ZHANG CHONG (author)

    Publication date :

    2020-07-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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