The invention relates to a longitudinal tripartite balance simple lifting jack which comprises an electric rope winding drum, an inclined support rod, a hydraulic cylinder, a support rod, a rope knot, a sliding rail, an electric gear of the sliding rail and a limiting baffle, wherein the electric rope winding drum is provided with a rope lifting hook; the end of the inclined support rod is provided with a fixed pulley; the electric rope winding drum is fixed at the back of a straight rod at the bottom end of the inclined support rod in a suspending way; the hydraulic cylinder is provided with a pressure rod; the support rod is connected with a piston rod of the hydraulic cylinder by a connecting block; the bottom end of the inclined support rod is connected with one side of the connecting block; the piston rod of the hydraulic cylinder at the bottom layer is pressed to rise by the pressure rod to jack an interlayer beam, so that the lifting jack is firmly located along the longitudinal direction; the inclined support rod is sequentially provided with the rope knot, the sliding rail, the electric gear of the sliding rail and the limiting baffle from outside to inside at the part close to the fixed pulley; the rope lifting hook with weight can be driven to move inwards by the electric gear. The longitudinal tripartite balance simple lifting jack has the characteristics of being easy to fix, high in safety, stable in lifting and retraction, and the like, thus being suitable for lifting goods among floors or windows.


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    Title :

    Longitudinal tripartite balance simple lifting jack


    Contributors:
    CAO ERBIN (author)

    Publication date :

    2015-05-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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