The invention discloses a hydraulic jack, and belongs to the technical field of on-site concrete strength detection. A hydraulic jack comprises a jack body, a pressure sensor and a frame. The jack body is arranged inside the top of the frame; the pressure sensor is arranged at the bottom of the jack body; the bearing platform is arranged in the frame, and the test block is placed above the bearing platform; the jack body is pressed downwards, the pressure sensor presses the test block downwards, the pressure sensor is connected with the electronic touch screen through a signal line, and a stress-strain curve graph is formed. And after the test is finished, the oil return switch is turned on, the high-pressure oil in the oil cylinder flows back to the oil storage cavity, and the pressed test block is separated from the piston, so that the complete compressive strength test of the coring test block is finished. Compared with a traditional compressive strength testing machine which is large in size, large in dead weight and not easy to carry, the hydraulic jack has the advantages of being light in dead weight, easy to carry, low in later maintenance cost and the like, and meets the requirement for testing the compressive strength of a concrete sampling test block on a rapid repair site.

    本发明公开了一种液压千斤顶,属于现场混凝土强度检测技术领域。一种液压千斤顶,包括千斤顶本体、压力传感器和框架;千斤顶本体设置于框架顶部内侧,压力传感器设置于千斤顶本体底部;承台设置于框架内部,试块放置于承台上方;通过千斤顶本体下压,压力传感器向下压迫试块,压力传感器通过信号线与电子触控屏相连接,形成应力应变曲线图。测试结束后,打开回油开关,油缸内的高压油便流回储油腔,被压试块与活塞也就分离,至此一个完整的取芯试块抗压强度测试完成。与体积大、自重大、不易携带的传统抗压强度测试机具相比,该液压千斤顶具备自重轻、易携带、后期维护成本低等优点,满足快速抢修现场对混凝土取样试块抗压强度测试的需求。


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    Title :

    Hydraulic jack


    Additional title:

    一种液压千斤顶


    Contributors:
    DAI XIAOQING (author) / TAN YIZHONG (author) / SUN MINQIAN (author) / ZHANG ZHONGWEI (author) / DUAN LIQUN (author) / XIONG ZIMING (author) / LIN YUAN (author) / DONG LU (author)

    Publication date :

    2024-08-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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 / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE



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