The invention discloses a lifting hook anti-falling device capable of being safely locked and avoiding extrusion injury, and relates to the field of hoisting mechanical equipment. The device comprises a lower hoop, a base, an upper hoop, a positioning sleeve and a positioning cover, wherein the lower hoop, the base and the upper hoop are sequentially sleeved on a lifting hook handle from bottom to top and are adjacently laminated; the positioning sleeve is annularly sleeved on the outer surface of the base; the positioning cover is oppositely buckled above the base and is combined with the base to form a clamping cavity; the baffle is symmetrically hinged to the outer surface of the base through a spring and a pin shaft and can be rotationally opened and closed in a hook cavity of the lifting hook and safely locked, and the shifting rod is installed at the center height position of the positioning sleeve and can horizontally rotate to conduct three-gear switching. According to the invention, automatic hanging of the sling and automatic closing of the hook mouth of the lifting hook can be realized; closed safe locking can be achieved, and the situation that due to fatigue failure of a spring, a hook opening cannot be closed by a baffle, and consequently a sling falls off from the hook opening, and a hanging-off accident is caused is avoided; the opening can be safely locked, and the hidden danger that a sling is squeezed and damaged when the sling is disassembled by manually pressing a baffle in the prior art is eliminated.

    本发明公开一种能够安全锁定和免挤伤的吊钩防脱装置,涉及起重机械设备领域。所述装置包括自下而上依次套装在吊钩柄上、且相邻压合的下抱箍、基座、上抱箍,环套在基座外表面的定位套,对扣在基座的上方、与基座组合成具有夹腔的定位盖,通过弹簧和销轴对称铰接在基座外表面、能在吊钩钩腔内旋转开合及安全锁定的挡板,安装在定位套正中高度位置处、能够水平旋转进行三档切换的拨杆。利用本发明能够实现吊索自动吊挂和吊钩钩口自动闭合;能够实现闭口安全锁定,避免了因弹簧疲劳失效导致挡板不能闭合钩口而致使吊索从钩口脱落造成脱挂事故的发生;能够实现开口安全锁定,消除了传统由人工按压挡板来卸去吊索时被吊索挤伤的隐患。


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    Title :

    Lifting hook anti-falling device capable of being safely locked and avoiding squeezing injury


    Additional title:

    一种能够安全锁定和免挤伤的吊钩防脱装置


    Contributors:
    HU SHUIGEN (author) / ZHAO XIAOWEI (author) / HAN ZHE (author) / XIE HAIJIAN (author) / YAO JUNWEI (author) / WANG PENGGE (author) / SHANG LIGE (author) / SUN QIUXIANG (author)

    Publication date :

    2023-07-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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