The invention discloses a synchronous lifting device. The synchronous lifting device comprises a lead screw, a worm wheel, a multi-point synchronous worm rod, a driving hand wheel, a slide sleeve, a nut and a frame, wherein the lead screw is connected to the frame; the worm wheel is connected with the nut; the multi-point synchronous worm rod and the worm wheel are engaged; the driving hand wheel is connected with the multi-point synchronous worm rod; and the nut is mounted in the slide sleeve, and is connected with the lead screw. The synchronous lifting device is simple in structure and convenient to operate, uses a conventional transmission device to change the operation mode, changes the operation wasting labor, time and force to simple operation of saving labor, time and force, can easily finish the rope penetration, and improves the efficiency by above 50%.


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    Title :

    Synchronous lifting device


    Contributors:
    ZHANG HUADONG (author) / HUANG LI (author) / LIU YONG (author)

    Publication date :

    2015-08-05


    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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