The invention discloses an oil leakage prevention hydraulic jack which comprises a hydraulic system, a hydraulic cylinder, an oil cavity, a liquid outlet annular groove, a liquid outlet pipe, a liquid inlet annular groove, a liquid inlet pipe, a first through hole, a first sealing ring, a first blind hole, a second sealing ring, a second through hole, a lifting shaft, a piston, a long groove, first anti-skid lines, an inner threaded pipe, a screw rod, a hand wheel, a sliding rod and a columnar brake pad. An oil cavity is formed in the hydraulic cylinder, a liquid outlet annular groove and a first through hole which are coaxial are formed in the top end of the oil cavity, a liquid outlet pipe communicated with the bottom of the liquid outlet annular groove is arranged on the outer side of the hydraulic cylinder, and a first sealing ring which is coaxial, sealed and fixed is arranged in the first through hole. The lifting jack is simple in structure and reasonable in design, oil leakage can be effectively avoided, and sudden drop of the lifting jack in use is avoided.
本发明公开了防漏油液压千斤顶,包含液压系统,包括液压缸、油腔、出液环形槽、出液管、进液环形槽、进液管、第一通孔、第一密封圈、第一盲孔、第二密封圈、第二通孔、升降轴、活塞、长凹槽、第一防滑纹路、内螺纹管、螺杆、手轮、滑杆、柱状刹车皮,所述液压缸内设有油腔,油腔顶端设有同轴的出液环形槽、第一通孔,液压缸外侧设有与出液环形槽槽底连通的出液管,第一通孔内设有同轴且密封固定的第一密封圈。本发明结构简单、设计合理,能够有效避免漏油现象,避免千斤顶在使用中出现骤降。
Oil leakage prevention hydraulic jack
防漏油液压千斤顶
2023-01-20
Patent
Electronic Resource
Chinese
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 |