The hydraulic jack comprises an inner square pipe and a balance valve device, the inner square pipe is sleeved with an outer square pipe, a base is arranged at the bottom of the inner square pipe, the bottom side of the base is connected with a connecting plate, ground needles are arranged on the periphery of the bottom of the connecting plate, and a connecting mechanism is arranged at the top of the outer square pipe. A sealing rubber ring is installed at the bottom end of the interior of the outer square pipe, a hydraulic device is arranged in the inner square pipe, and the bottom end of the inner square pipe is connected with a balance valve device. According to the hydraulic jack, through the arrangement of the balance valve device, when the gravity load is increased, the opening degree of a spring stress valve port is increased, a rotating core is driven to rotate, a first valve plate rotates rightwards, a second valve plate is just pushed up, an outlet opening is opened, more liquid flows back to an oil tank, the position of a hydraulic cylinder is kept stable, and the rest liquid flows out of the outlet opening; when the gravity load is reduced, the balance valve can reduce the opening degree and the backflow speed, and it is ensured that the interior of the device does not descend excessively.

    本发明提供一种液压千斤顶,包括内方管和平衡阀装置,所述内方管的外部套设有外方管,所述内方管的底部设置有底座,所述底座的底侧连接设置有连接板,所述连接板的底部四周设置有地针,所述外方管的顶部设置有连接机构,所述外方管的内部底端安装有密封胶圈,所述内方管的内部设置有液压装置,所述内方管的底端连接有平衡阀装置。一种液压千斤顶通过平衡阀装置的设置,当重力负载增加时,弹簧受力阀口开度增大,带动转芯旋转,使得第一阀片向右旋转,正好将第二阀片推起,使得出道口打开,使更多的液体流回油箱,保持液压缸的位置稳定,剩余的从出道口流出,相反,当重力负载减少时,平衡阀会减小开度,减少回流速度,确保装置内部不会过度下降。


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    Titel :

    Hydraulic jack


    Weitere Titelangaben:

    一种液压千斤顶


    Beteiligte:
    YE PEIYU (Autor:in) / YU JINGKAI (Autor:in)

    Erscheinungsdatum :

    2023-12-01


    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



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