The invention belongs to the field of hydraulic lifting equipment, and provides a self-locking hydraulic lifting device which comprises a mounting plate, a rectangular groove formed in the mounting plate and a cylinder fixedly connected to the upper surface of the mounting plate, a cylinder is slidably connected into the cylinder, and the cylinder comprises a top plate fixedly connected to the upper end of the cylinder; the mounting block can be driven to move back and forth in the rectangular groove by controlling the corresponding hydraulic cylinder, the mounting block moves to drive the sliding block and the moving block on the sliding block to move, the moving block can drive the pin roller to roll in the guide groove when moving backwards, and the hydraulic cylinder is closed when the pin roller is located on the uppermost portion in the guide groove. At the moment, the mounting rod and the top plate on the mounting rod are located at the highest position, the position of the top plate is raised, and the roller is located in the guide groove and supported by the guide groove, that is, when the top plate is raised to the highest position and no external force is applied to the top plate, the top plate can be locked in the guide groove, the output end of the hydraulic cylinder does not need to bear large load, and the service life of the hydraulic cylinder is effectively prolonged.
本发明属于液压升降设备领域,提供了一种自锁式液压升降装置,包括安装板、开设于安装板上的矩形槽、固定连接于安装板上表面的圆筒,圆筒内滑动连接有圆柱,圆柱包括固定连接于其上端的顶板;本发明通过控制对应的液压缸可以带动安装块在矩形槽内来回移动,安装块移动即可以带动滑块及其上的移动块移动,移动块向后移动时可以带动滚柱在导向槽内滚动,当滚柱位于导向槽的内部最上方时关闭液压缸,此时安装杆及其上的顶板位于最高处,顶板的位置被升高,且滚柱位于导向槽内被导向槽支撑,即顶板升到最高处时不对其施加外力时,顶板会锁定在导向槽内,不需要液压缸输出端承受较大的荷载,有效的延长了液压缸的使用寿命。
Self-locking hydraulic lifting device
一种自锁式液压升降装置
2024-08-09
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 |
Lifting hook self-locking device and lifting appliance comprising lifting hook self-locking device
European Patent Office | 2023
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