The invention discloses a jack which comprises a vertical rod, a base, a rocker and a limiting mechanism. The rocker is used for controlling the base to slide up and down on the vertical rod, one end of a second limiting piece is in pin joint with the base, and a handle is arranged at the other end of the second limiting piece; the handle is provided with a first groove and a second groove in the axial direction of the handle, and the center of the handle is provided with a fourth through hole allowing a third limiting piece to penetrate through; the third limiting piece comprises a limiting shaft, a bolt and an elastic element, the bolt is sleeved with the elastic element, one end of the elastic element abuts against a second clamping ring in the handle, and the other end of the elastic element abuts against a first clamping ring on the bolt; the limiting shaft is vertically connected with the bolt and is clamped in the first groove or the second groove; a fifth through hole is formed in the base and corresponds to the bolt in position; and the depth of the first groove is at least enough to enable the bolt to be positioned in the fifth through hole. The jack is simple in structure and high in safety.

    本发明公开了一种千斤顶,包括竖直杆、基座、摇杆、限位机构,所述摇杆用于控制基座在竖直杆的上下滑动,第二限位件的一端和基座销接,另一端设有手柄;手柄在沿手柄的轴向方向上设有第一凹槽和第二凹槽,手柄的中心开有供第三限位件穿过的第四通孔;第三限位件包括限位轴、插销、弹性元件,弹性元件套设在插销上,其一端与手柄内的第二卡环相抵触,另一端与插销上的第一卡环相抵触;所述限位轴与插销垂直相连,且卡在第一凹槽或第二凹槽内;基座上设有第五通孔,和插销的位置相对应;所述第一凹槽的槽深至少足以使插销位于第五通孔内。本发明结构简单,安全性高。


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    Titel :

    Jack


    Weitere Titelangaben:

    一种千斤顶


    Beteiligte:
    WANG XINYU (Autor:in) / YIN ZIHAO (Autor:in)

    Erscheinungsdatum :

    2021-08-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    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 / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile



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