The invention relates to the technical field of hydraulic jacks, and discloses a vehicle repair hydraulic jack which comprises a device base, an oil way seat and a top plate, the oil way seat is fixedly connected to the upper end of the device base, an oil cylinder is fixedly connected to the upper end of the oil way seat, an oil cavity is formed in the oil cylinder in a surrounding mode, and a hydraulic groove not communicated with the oil cavity is formed in the oil cylinder. A piston ejector rod is slidably connected into the hydraulic groove, a limiting block is fixedly connected to the upper end of the piston ejector rod, a limiting groove matched with the limiting block in an inserted mode is formed in the lower portion of the top plate, and the upper end of the piston ejector rod is in threaded connection with a limiting screw for fixing the top plate. According to the lifting jack, the left shaking stress generated when the ejector rod ascends can be transmitted to the whole device for unloading, so that the ejector plate is prevented from shaking in the jacking process, the ejector plate ascends more stably, and the use safety of the jack is improved.
本发明涉及液压千斤顶技术领域,公开了一种汽修液压千斤顶,包括装置底座、油路座和顶板,所述油路座固定连接于装置底座上端,所述油路座上端固定连接有油缸,所述油缸内环绕设有油腔,所述油缸内设有与油腔不通的液压槽,所述液压槽内滑动连接有活塞顶杆,所述活塞顶杆上端固定连接有限位块,所述顶板下单设有与限位块插接配合的限位槽,所述活塞顶杆上端螺纹连接有固定顶板的限位螺杆。本发明可以使得顶杆在上升时产生左晃动的应力传递到整个装置进行卸力,从而防止顶板在顶升过程中出现晃动,从而使得顶板上升更加的稳定,从而提高了千斤顶使用的安全性。
Hydraulic jack for automobile repair
一种汽修液压千斤顶
2024-06-07
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 / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |
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