The invention provides an anti-unhooking device of a lifting hook. A mounting hole is formed in the lower end of a straight handle, wherein the middle of a frame is rotatably connected with the mounting hole, and one end of the frame is positioned in a bent hook and can be connected with a hook tip in a clamped mode; the other end of the frame extends to the outer side of a hook back from the mounting hole, and one end of a positioning plate is rotatably connected with the other end of the frame; when the positioning plate naturally droops, one end of the frame and the hook tip are connected to a hook opening in a clamped mode to be closed, so that the lifting hook is in a locked state; and the positioning plate is moved to enable the frame to rotate and enable the other end of the positioning plate to be connected with the hook back in a clamped mode, and one end of the frame leaves the hook tip and moves into the bent hook until the hook opening is opened, so that the lifting hook isin an opened state. According to the anti-unhooking device, positioning can be achieved in the locked state and the opened state, manual intervention is not needed, and when a rigging is heavy, the rigging can be taken out only by one person through double-hand operation.

    本发明提供一种吊钩的防脱钩装置,在所述直柄的下端设置有安装孔,所述框架的中部与所述安装孔转动连接,所述框架的一端位于所述弯钩内且能够与所述钩尖卡接;所述框架的另一端由所述安装孔向所述钩背外侧延伸,所述定位板的一端与所述框架的另一端转动连接;当所述定位板自然下垂时,所述框架的一端与所述钩尖卡接至所述钩口封闭,以使所述吊钩处于锁闭状态;移动所述定位板使所述框架转动以及使所述定位板的另一端与所述钩背卡接,所述框架的一端离开所述钩尖向所述弯钩内移动至所述钩口打开,以使所述吊钩处于打开状态。该防脱钩装置在锁闭和打开后两种状态都能实现定位,不需人工干预,当索具较重时,也只需一人就可用双手操作取出索具。


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    Title :

    Anti-unhooking device of lifting hook


    Additional title:

    吊钩的防脱钩装置


    Contributors:
    MEI WEI (author) / LIU KANG (author) / WANG JIANBING (author)

    Publication date :

    2020-08-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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