The invention discloses a jack with high supporting performance. The jack comprises a hydraulic cylinder, a piston which is arranged in the hydraulic cylinder and a piston rod which is arranged on the piston; a hydraulic cylinder cover is arranged at the top of the hydraulic cylinder; the hydraulic cylinder cover and the hydraulic cylinder are of an integrated structure; the hydraulic cylinder cover comprises a middle part and an outer convex part; a center hole is formed in the middle part; the piston rod penetrates through the center hole and is matched and connected with the center hole; a plurality of threaded holes are distributed in the circumferential direction of the outer convex part; a threaded supporting rod is matched and screwed in each threaded hole; a polytetrafluoroethylene coating is arranged on the inner wall of the hydraulic cylinder. In the mode, the jack is flexible in structure and wide in supporting range, and can meet the supporting requirement in special situations.


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    Title :

    Jack with high supporting performance


    Contributors:
    XU XIWEI (author)

    Publication date :

    2015-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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