The invention discloses a lifting device of a small-diameter pipeline. The lifting device comprises an upper lifting frame, a lower lifting frame, large arms, hoisting arms and automatic locks, wherein hook connecting plates are welded at two sides of the upper lifting frame and are mechanically connected with a traveling crane, two guide columns are arranged at the left and right sides between the upper lifting frame and the lower lifting frame, the automatic locks are arranged at the lower parts of the two guide columns, and the automatic locks and the guide columns are connected integrally and are hinged between the upper lifting frame and the lower lifting frame; the large arms are arranged at the left and right sides of the lifting frame and are hinged with the lower lifting frame, concave grooves are formed in the side surfaces of the large arms, the top ends of the hoisting arms at the left and right sides are hinged together with the hook connecting plates of the upper lifting frame, and the hoisting arms are hidden inside the concave grooves of the large arms under the condition that the hoisting arms do not work. According to the lifting device, the lifting work of the small-diameter pipeline can be completed rapidly, meanwhile, the safety is high, the labor intensity of workers can be alleviated greatly, and the operation safety is guaranteed.


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    Title :

    Lifting device of small-diameter pipeline


    Contributors:
    SONG ZEYU (author) / CHENG ZHI (author)

    Publication date :

    2015-12-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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