The invention provides a self-locking lifting hook. The self-locking lifting hook comprises a self-locking lifting hook main body and a pull rod safety mechanism, the lower end of the shackle is movably connected with the two connecting pieces, the other ends of the two connecting pieces are movably connected with one ends of the linear sections of the two hook bodies, the two hook bodies are crossed and movably connected at the joints of the linear sections and the arc-shaped sections to form a lifting hook main body, and the lifting hook main body can be tightened in a natural state and has a self-locking function; the pull rod safety mechanism comprises a locking seat I, a locking seat II, a pull rod, a pull rod sleeve and a spring, the locking seat I and the locking seat II are fixed on the straight line section of the hook body, one end of the pull rod is movably connected with the locking seat I and can rotate around the locking seat I, the other end of the pull rod is inserted into the pull rod sleeve and sleeved with the spring, and the spring is pre-compressed when the safety mechanism is in a locking position; the pull rod sleeve can be tightly pressed on the locking face of the locking seat II, the pull rod sleeve can rotate outwards around the connecting position of the pull rod and the locking seat I to be unlocked, and secondary safety of the lifting hook is achieved.

    本发明提供一种自锁吊钩,包括自锁吊钩主体和拉杆保险机构。卸扣下端活动连接两个连接片,两个连接片另一端与两个钩身直线段的一端活动连接,两个钩身在直线段与弧形段的连接处交叉并活动连接,以上组成吊钩主体,吊钩主体在自然状态下可收紧,具备自锁功能;拉杆保险机构包括:锁紧座I、锁紧座Ⅱ、拉杆、拉杆套筒、弹簧,锁紧座I和锁紧座Ⅱ固定在钩身直线段上,拉杆一端和锁紧座I活动连接并可绕其旋转,拉杆另一端插入拉杆套筒中并套装有弹簧,保险机构处于锁紧位时弹簧预压缩,可将拉杆套筒压紧在所述锁紧座Ⅱ的锁紧面上,拉杆套筒能够绕所述拉杆与锁紧座I的连接处向外转动来解锁,实现吊钩的二级保险。


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    Titel :

    Self-locking lifting hook


    Weitere Titelangaben:

    一种自锁吊钩


    Beteiligte:
    YAN TAO (Autor:in) / FANG HANG (Autor:in) / DONG NAN (Autor:in) / SONG XIANGHUA (Autor:in)

    Erscheinungsdatum :

    2023-06-09


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES




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