The invention relates to the field of marine lifting appliances, and particularly discloses a variable underwater curtain self-pre-tightening multipurpose lifting appliance which comprises a lifting seat, an electromagnet and a winding device which are arranged on the lifting seat, a lifting hook assembly consisting of a lifting hook seat and a hook body, a guide part on the lifting hook seat, and a lifting rope connected between the winding device and the lifting hook assembly, and the falling component is provided with a guide-in plate and is sleeved on the lifting rope. The winding and unwinding lengths of the lifting ropes can be changed through the winding device, and certain pre-tightening force can be applied to the two lifting ropes when the two lifting hook assemblies are used for lifting through natural falling of the falling and tightening assemblies during lifting, so that the lifting ropes are tightened; according to the lifting appliance, the two lifting hook seats are arranged on the lifting rope, so that accidents such as unhooking or side tipping caused by asymmetry of the lifting rope or change of pulling force of the lifting rope are prevented, and when the falling seat body falls to the lowest point, the two lifting hook seats can be mutually combined through interaction between the guide-in plate and the guide part, so that the single-hook type lifting appliance is formed, and the functionality is more diversified.

    本发明涉及船用吊具领域,具体公开了一种可变式水下帷幕自预紧多用途吊具,包括:吊座,设置在吊座上的电磁铁和卷收装置,由吊钩座和钩体构成的吊钩组件,吊钩座上的导向部,连接在卷收装置和吊钩组件之间的吊绳,带有导入板并套在吊绳上的坠紧组件。本发明通过卷收装置能够改变吊绳的收放长度,并且通过坠紧组件在起吊时的自然下坠能够在两个吊钩组件进行吊装时,对两根吊绳施加一定的预紧力从而使吊绳绷紧,从而防止吊绳因不对称或者吊绳拉力的变化引起脱钩或侧倾等事故的发生,并且当坠紧座体下落至最低点时,通过导入版和导向部之间的相互作用能够将两个吊钩座相互合并,从而形成单钩形式的吊具,功能性更加多样化。


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    Title :

    Variable underwater curtain self-pre-tightening multipurpose lifting appliance


    Additional title:

    一种可变式水下帷幕自预紧多用途吊具


    Contributors:
    ZHANG ZHENG (author) / FAN HUAIBIN (author) / LIU JIANYUE (author) / TAN YONGMING (author) / TAN HAIJIAN (author) / SUN LICHUAN (author) / QIN CAIYONG (author) / LUO YUFENG (author) / LIANG JIANLING (author) / XU JUN (author)

    Publication date :

    2023-06-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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