The invention discloses a lower lifting hook assembly. The lower lifting hook assembly comprises a carrying hook, a hook sleeve and a mounting base, wherein the hook sleeve is connected with the mounting base, the carrying hook is provided with a connecting part, a first annular groove is formed in the outer wall of the connecting part, a second annular groove is formed in the inner wall of the hook sleeve, the first annular groove and the second annular groove are matched to form a ball groove, a plurality of balls are arranged in the ball groove, a through hole communicating with the ball groove is formed in the side wall of the hook sleeve and is used for placing the balls into the ball groove, and a blocking piece used for blocking the through hole is arranged in the through hole. Theinvention further discloses a chain block which comprises an upper lifting hook, a body and the said lower lifting hook assembly. The chain block has the advantages that after the carrying hook and the hook sleeve are integrally disassembled, the balls between the carrying hook and the hook sleeve are prevented from falling off, the trouble of mounting the balls again during overhauling is avoided, and the overhauling efficiency is improved.

    本发明公开了一种下吊钩组件,包括载物钩、钩套和安装座,所述钩套与所述安装座连接,所述载物钩设有连接部,连接部的外壁设有第一环槽,所述钩套的内壁设有第二环槽,所述第一环槽与所述第二环槽配合形成滚珠槽,滚珠槽内设有若干滚珠,所述钩套的侧壁设有连通所述滚珠槽的通孔,用以向所述滚珠槽内放入滚珠,所述通孔内设有用于封堵通孔的封堵件;本发明还公开了一种手拉葫芦,包括上吊钩、本体和上述下吊钩组件。本发明具有防止载物钩及钩套的整体拆卸后,载物钩与钩套之间的滚珠脱落,避免检修时再次安装滚珠,提高检修效率的特点。


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    Title :

    Lower lifting hook assembly and chain block


    Additional title:

    一种下吊钩组件及手拉葫芦


    Contributors:
    FU XIANGNIAN (author) / LIU YANG (author)

    Publication date :

    2020-12-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / B66D Haspeln , CAPSTANS



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