The invention discloses a lifting appliance opening and closing mechanism, and relates to the technical field of lifting appliance opening and closing devices, the lifting appliance opening and closing mechanism comprises a fixed rack and a movable rack, the whole movable rack is located at the upper end of the fixed rack, and an opening and closing hook is fixedly arranged in the middle of the top end of the fixed rack; the movable opening and closing hook comprises a horizontal cross beam located on the upper portion and a vertical lifting hook located on the lower portion, a second rotating shaft is arranged on one side of the fixed rack and rotationally connected with the middle of the pawl, and a ratchet wheel limiting assembly matched with the pawl is arranged on the movable rack. The four-tooth ratchet wheel is matched with the pawl to control the rotation angle of the shifting rod and the square positioning block. The movable opening and closing hook is driven to rotate through position switching of the shifting rod in the vertical state and the horizontal state, so that separation and closing actions of the movable opening and closing hook and the fixed opening and closing hook are achieved, the rotating position of the movable opening and closing hook is limited in a designated space in the whole process, actions of the movable opening and closing hook are reliable and clear, misoperation is reduced, and safety is improved. And hoisting safety accidents caused by opening and closing faults are avoided.

    本发明一种吊具开闭机构,涉及吊具开闭器技术领域,包括定机架、动机架,动机架整体位于定机架的上端,定机架顶端中部固设定启闭钩,动机架的前端通过第一转轴与动启闭钩的中部转动连接,动启闭钩包括位于上部的水平横梁和位于下部的竖向吊钩,定机架的一侧设置第二转轴,第二转轴与棘爪的中部转动连接,动机架上设置与棘爪相配合的棘轮限位组件。本发明利用四齿棘轮与棘爪的配合控制拨杆和方形定位块旋转角度。通过拨杆在竖直状态和水平状态的位置切换驱动动启闭钩旋转从而实现动启闭钩与定启闭钩的分离与闭合动作,整个过程动启闭钩的旋转位置被限定在指定空间,动启闭钩的动作可靠明确,减少误操作,避免开闭动作失误造成吊装安全事故。


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    Titel :

    Lifting appliance opening and closing mechanism


    Weitere Titelangaben:

    一种吊具开闭机构


    Beteiligte:
    YANG CHAO (Autor:in) / GAO HELONG (Autor:in) / ZANG FUZHAN (Autor:in) / MA YAN (Autor:in) / FENG LI (Autor:in) / ZHANG HONGLIANG (Autor:in) / LI JIANXING (Autor:in) / WANG HE (Autor:in)

    Erscheinungsdatum :

    2024-01-09


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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