The invention relates to the technical field of jacks, in particular to an oil return structure of a hydraulic jack. The device comprises a jack and at least two blocking mechanisms, the two blocking mechanisms are symmetrically arranged with the jack as the center, each blocking mechanism comprises a fixed communication block arranged on the peripheral face of the jack, and the upper end face of each fixed communication block is fixedly connected with a telescopic box. By means of the telescopic box, the expansion assembly and the release assembly in the blocking mechanism, when the oil cylinder explodes, additional support can be provided for the piston so as to avoid the situation that the piston loses oil, and consequently a lifted heavy object falls off, the situation that the lifted heavy object falls off due to the fact that the piston loses oil supporting is effectively avoided, personnel safety is guaranteed, and the working efficiency is improved. Equipment damage and property loss caused by falling of heavy objects are reduced, the stability of the working process is ensured, work interruption and production stagnation caused by sudden cylinder explosion events are avoided, and operation continuity and high efficiency are maintained.

    本发明涉及千斤顶技术领域,具体涉及一种液压千斤顶的回油结构,包括:千斤顶与基座;阻断机构,所述阻断机构具有至少两个,且两个阻断机构以千斤顶为中心对称设置,所述阻断机构包括设置在千斤顶外周面的固定连通块,所述固定连通块的上端面固定连接有伸缩箱。通过阻断机构中伸缩箱、膨胀组件与释放组件,可以实现在油缸发生爆缸时,对活塞提供额外的支撑,以避免活塞因失去油液,而导致托举的重物发生坠落,从而有效避免了活塞因失去油液支撑而致使托举重物坠落,保障了人员安全,减少了因重物坠落造成的设备损坏和财产损失,确保工作过程的稳定性,避免因突发爆缸事件导致工作中断和生产停滞,维持作业连续性与高效性。


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    Title :

    Oil return structure of hydraulic jack


    Additional title:

    一种液压千斤顶的回油结构


    Contributors:
    MENG HAOYANG (author) / QI ZHENGTAO (author) / GONG JIANFENG (author)

    Publication date :

    2025-05-30


    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



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