The invention relates to the technical field of engineering mechanical equipment, in particular to a scaling ladder having a second-stage linkage carrying truck. The scaling ladder is provided with a scaling ladder, a slide base, a shelf, a cable, pulleys, a wire winding wheel and a motor or a hydraulic motor, and is characterized in that a first-grade linkage base is arranged on the slide base, wherein the front end of the first-grade linkage base is hinged with a second-grade linkage base; the back end of the first-grade linkage base is hinged with the back end of the second-grade linkage base by an extension rod; the shelf is arranged on the second-grade linkage base; one end of the cable is connected with the shelf, and the other end is connected with the wire winding wheel on the scaling ladder after being bypassed through the pulley at the front end of the second-grade linkage base, the pulley at the back end of the first-grade linkage base, the pulley at the front end of the slide base, the pulley at the back end of the slide base and the pulley at the top end of the scaling ladder; a shaft of the wire winding wheel is connected with an output shaft of the motor or the hydraulic motor fixed on the scaling ladder; and the scaling ladder has such advantages as high safety coefficient, low labor intensity and high working efficiency.


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    Title :

    Scaling ladder having second-stage linkage carrying truck


    Contributors:
    WEN CHENGHAO (author) / WANG YAN (author)

    Publication date :

    2015-10-28


    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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