The hook comprises a hook body, an anti-disengaging pawl, a connecting rod, a pressing rod and a releasing mechanism, the anti-disengaging pawl is rotatably arranged on the neck portion of the hook body, one end of the anti-disengaging pawl can abut against the tail end of the hook body to seal the opening portion of the hook body when the anti-disengaging pawl rotates, and the two ends of the connecting rod are connected with the anti-disengaging pawl and the pressing rod through hinge structures respectively; one end of the pressing rod is connected to the opening of the lifting hook through the elastic reset element, the other end of the pressing rod is connected with the releasing mechanism, at least part of the pressing rod is located above a groove of the lifting hook in the initial state of the elastic reset element, and when the lifting hook is matched with the rigging, the rigging presses down the pressing rod to trigger the connecting rod to drive the anti-disengaging pawl to rotate to seal the opening of the lifting hook. When the rigging is lifted to be separated from the groove of the lifting hook, the pressing rod is reset under the action of the elastic reset element and the release mechanism to drive the connecting rod to rotate the anti-falling pawl to open the opening part of the lifting hook. According to the invention, automatic opening of the anti-unhooking device is realized, and the problem that the anti-unhooking device is inconvenient to open manually in some special occasions is solved.

    本发明公开了一种可自动打开的防脱钩棘爪吊钩,包括吊钩、防脱棘爪、连杆、压杆和释放机构,防脱棘爪可转动地设置于吊钩的颈部,且防脱棘爪转动时一端可抵接吊钩末端以封闭吊钩口部,连杆两端分别通过铰链结构连接防脱棘爪和压杆,压杆一端通过弹性复位元件连接设置于吊钩口部,压杆另一端与释放机构连接,压杆在弹性复位元件的初始状态下至少部分位于吊钩的沟槽之上,当吊钩与索具配合时索具压下压杆,触发连杆带动防脱棘爪转动封闭吊钩口部,索具升起脱离吊钩的沟槽时,压杆在弹性复位元件和释放机构的作用下复位,带动连杆使得防脱棘爪转动打开吊钩口部。本发明实现防脱钩装置的自动打开,解决在一些特殊场合下人工打开防脱装置不便的问题。


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    Title :

    Mousing-hook pawl lifting hook capable of being automatically opened and using method thereof


    Additional title:

    一种可自动打开的防脱钩棘爪吊钩及其使用方法


    Contributors:
    DENG CHANGBIN (author) / CHEN QINMING (author) / CHEN DEQIU (author)

    Publication date :

    2025-01-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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