The invention discloses a self-locking type scissor-fork lifting mechanism. The self-locking type scissor-fork lifting mechanism comprises a working platform, outer fork arms, inner fork arms, long supporting seats, guide rails, rolling wheels, short supporting seats, V-shaped transmission connection rods, a power source and a base; each outer fork arms and a corresponding inner fork arm are connected with each other through pin shafts so as to form a scissor-fork-shaped structure; fixed hinges between the inner fork arms and the outer fork arms are movably connected with the V-shaped transmission connection rods; the bottom end of each inner fork arm is connected with a corresponding long supporting seat at one side of the base through a pin shaft; the top end of each V-shaped transmission connection rod is connected with a corresponding short supporting seat at one side of the working platform; the top ends of the inner fork arms are movably connected into guide rails at two sides of the working platform; and two ends of the outer fork arms are movably connected into guide rails at two sides of the base. Full hydraulic transmission is adopted, and therefore, the self-locking type scissor-fork lifting mechanism has the advantages of flexible action and stable operation, and can effectively buffer external impact forces; friction in the device is rolling friction, so that the self-locking type scissor-fork lifting mechanism further has the advantage of high transmission efficiency; and after being unfolded, the self-locking type scissor-fork lifting mechanism can form a stable rigid truss structure, and therefore, the self-locking type scissor-fork lifting mechanism also has the advantage of high folding and unfolding ratio.


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    Title :

    Self-locking type scissor-fork lifting mechanism


    Contributors:
    WANG YAZHOU (author) / WANG YAJUN (author) / QI LILI (author)

    Publication date :

    2015-08-12


    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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