The pump body structurally comprises a cylinder body, an oil cavity is formed in the cylinder body, the pump body further structurally comprises a small hollow piston and a large hollow piston, an oil inlet is formed in the bottom of the oil cavity, a piston opening is formed in the top of the oil cavity, one end of the small piston is fixed in the oil inlet in a sealed mode, and the other end of the small piston is fixed in the piston opening in a sealed mode. The other end of the small piston is provided with a chamfer and extends towards the piston opening, the large piston is arranged on the piston opening in a sliding mode, the bottom of the large piston is movably arranged on the outer side of the small piston in a sleeving mode, the large piston and the small piston are concentrically arranged, the interiors of the small piston and the large piston are communicated, and a sealing movable part is arranged at the connecting position of the outer wall of the large piston and the small piston. The sealing movable part is matched with the chamfer to limit the maximum stroke of the large piston on the small piston, when the jack is lifted to the same height, the number of times of downward pressing is smaller, and the purpose of rapidly jacking the jack is achieved.
本发明公开了一种油压千斤顶快速举升的泵体,其结构包括缸体,缸体的内部设有油腔,其结构还包括中空的小活塞和中空的大活塞,油腔的底部形成有进油口,油腔的顶部设有活塞口,小活塞的一端密封固定在进油口的内部,小活塞的另一端设有倒角且延伸方向朝向活塞口,大活塞滑动设置在活塞口上,大活塞的底部可活动的套在小活塞的外侧,大活塞和小活塞同心设置,小活塞和大活塞的内部相连通,大活塞的外壁和小活塞的连接处设有密封活动件,密封活动件配合倒角限制大活塞在小活塞上的最大行程,本发明千斤顶升起同样高度,本发明下压的次数更少,达到将千斤顶快速顶起的目的。
Pump body rapidly lifted by oil jack
一种油压千斤顶快速举升的泵体
2022-11-11
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 |
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