The invention discloses a holding head telescopic structure of a car lifting jack. The holding head telescopic structure comprises a bracket and a holding head horizontally arranged within the bracket; the bracket comprises two side plates arranged to directly face each other and parallel to each other and a supporting mechanism for connecting the side plates; the holding head comprises two edge plates arranged on the inner sides of the two side plates, correspondingly; and one ends, facing a working side of the car lifting jack, of the edge plates are connected with holding blocks. The holding head telescopic structure is characterized in that a rack is horizontally mounted on one edge plate; a rotating shaft is arranged on the bracket in a direction perpendicular to the side plates and a gear engaged with the rack is fixed on the rotating shaft; and one end of the rotating shaft penetrates through the side plates of the bracket to be coaxially connected with a circular turning handle. The holding head telescopic structure of the car lifting jack has the advantages of simple structure, easiness in manufacture, wide application range, convenience in adjustment and fixation, capability of favorably improving safety of a car lifting jack system, and the like.


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    Title :

    Holding head telescopic structure of car lifting jack


    Contributors:

    Publication date :

    2016-02-03


    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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