A jack structure includes a cylinder, an air chamber piston rod disposed therein, an ejection piston rod disposed around the air chamber piston rod, a position-limiting component on top of the external cylinder, and a fastening component on top of the cylinder. The air chamber piston rod has a top with an air chamber piston, an internal portion with a first air chamber, and a sidewall with a gas passage in communication with the first air chamber. The ejection piston rod has an air chamber sealing cover, position-limiting portion, and ejection hydraulic piston. The air chamber sealing cover, ejection piston rod, air chamber piston rod, and air chamber piston together define a second air chamber communicating with the first air chamber. The ejection hydraulic piston, ejection piston rod, air chamber sealing cover, air chamber piston rod, and cylinder together define a hydraulic chamber communicating with the liquid passage.


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    Titel :

    Jack structure


    Beteiligte:
    YANG CHUNG-YI (Autor:in)

    Erscheinungsdatum :

    17.11.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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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