The invention belongs to the field of lifts and provides a step-by-step hydraulic lift which has the advantages of maximum carrying capacity, infinite lifting height, no lift well, no pit, and safety and reliability. A plurality of or a plurality of groups of hydraulic cylinder blocks 5 are fixedly connected to a motion body (car) 2; a hydraulic station 1 is mounted under the hydraulic cylinder block and used for supplying liquid for the hydraulic cylinder blocks 5 and controlling the action of the hydraulic rod 6. An expansion block 3 and an expansion block controller 4 are positioned on a holder. When the motion body (car) 2 moves, the expansion block controller 4 drives the expansion block 3 to extend out, the first hydraulic rod 6 or the first group of hydraulic rods 6 extends out of the hydraulic cylinder block(s) 5, the expansion block 3 is stepped to drive the motion body (car) 2 to move up or down by a certain distance, the second hydraulic rod 6 or the second group of hydraulic rods 6 extends out to drive the motion body (car) 2 to move up or down by a distance L together with the first hydraulic rod 6 or the first group of hydraulic rods 6, and then the second hydraulic rod 6 or the second group of hydraulic rods 6 independently drives the motion body (car) 2 to move up or down by a distance and the first hydraulic rod 6 or the first group of hydraulic rods 6 extends out; the rest can be done in the same manner to realize cyclic actions, and therefore, the motion body (car) 2 is enabled to go up or down non-intermittently step by step.


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    Title :

    Step-by-step hydraulic lift


    Contributors:
    ZHANG DEKUN (author)

    Publication date :

    2015-04-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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