The invention discloses a telescopic hydraulic lifting device of cable trench cover plates. A telescopic chassis front arm is arranged at one end of a bearing chassis; steering wheels are arranged at four corners of the bearing chassis; the bearing chassis is fixedly connected with a main support rod; a lifting arm is provided with a telescopic lifting arm at one side of the telescopic chassis front arm on the bearing chassis; one end, opposite to the telescopic lifting arm, of the lifting arm is connected with the main support rod through a bearing; the middle of the telescopic lifting arm is connected with a mobile end of a hydraulic device; a fixed end of the hydraulic device is connected with a projection platform at the lower part of the main support rod; and a lifting hook is suspended at the front end of the lifting arm through a lifting cable. The telescopic hydraulic lifting device can adapt to cable trench cover plates with various specifications, can effectively prevent such accidents as the damage of the cable trench cover plates and the personnel harm possibly generated in the lifting and moving process of the cable trench cover plates by constructors, effectively improves the production efficiency of workers, and effectively guarantees the completion of the cable trench cover plates so as to improve the power supply reliability.


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    Title :

    Telescopic hydraulic lifting device of cable trench cover plates


    Contributors:
    WAN FAQIN (author) / CHEN KUI (author) / ZHU KONGMING (author) / ZHANG NAIJIE (author) / DING ERLU (author) / ZHANG HAO (author) / WANG XINGLIANG (author)

    Publication date :

    2015-06-10


    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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