The invention belongs to the technical field of lifting appliances, and discloses an unpowered inner supporting type lifting appliance and a control method thereof. Pull rods are mounted at the two ends of the lower side of a dual-purpose lifting ring through rotating shafts correspondingly, and the other ends of the pull rods are connected with stress arms through pin shafts; the bending positions of the left-end stress arm and the right-end stress arm are connected through a pin shaft, the lower end of the left-end stress arm is connected with an internal and external sliding bridge through a pin shaft, and the lower end of the right-end stress arm is movably connected with the internal and external sliding bridge through a connecting shaft; fixed holding claws are respectively arranged at two ends of the lower side of the internal-external sliding bridge, and a movable holding claw is arranged at the other end of the lower side of the internal-external sliding bridge. The fixed holding claw and the movable holding claw can be lifted through the dual-purpose lifting ring by utilizing the pull rod and the stress arm, the dual-purpose lifting ring is manufactured by mutually changing the stress direction according to the lever principle, the clamping area can be effectively increased through mutual cooperation of the fixed holding claw and the movable holding claw, and the clamping stability is guaranteed.

    本发明属于吊具技术领域,公开了一种无动力内撑式吊具及其控制方法,两用吊环下侧两端分别通过转轴安装有拉杆,拉杆另一端通过销轴连接有受力臂;受力臂另一端设置有弯曲段,左端受力臂和右端受力臂的弯曲位置通过销轴连接,左端受力臂下端通过销轴连接有内外滑动桥梁,右端受力臂的下端通过连接轴与内外滑动桥梁活动连接;内外滑动桥梁下侧两端分别设置有固定抱爪,内外滑动桥梁下侧另一端设置有活动抱爪。本发明通过两用吊环可以利用拉杆和受力臂对固定抱爪和活动抱爪进行吊起,利用杠杆原理相互改变受力方向而制成,通过固定抱爪和活动抱爪相互配合可以有效提高夹持面积,保证夹持稳定性。


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    Titel :

    Unpowered inner supporting type lifting appliance and control method thereof


    Weitere Titelangaben:

    一种无动力内撑式吊具及其控制方法


    Beteiligte:
    ZHAO JIANGUO (Autor:in) / LIU RUIBING (Autor:in) / SUN QIANG (Autor:in) / YANG CHENGXIANG (Autor:in)

    Erscheinungsdatum :

    2023-09-08


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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