The invention discloses a four corner supported rack jack which comprises a rack jack main body. A threaded column which penetrates a mounting base is rotatably connected to the upper surface of an inner cavity of each limiting slot, the upper end of the threaded column is fixedly connected to an adjusting gear, a threaded pipe matched with the limiting slot is in threaded connection to the outerside of the threaded column, the lower end of the threaded pipe is fixedly connected to a supporting block, a reset spring and a movable block are connected to the outer side of a guide fixed bar in asleeving manner, separately, a limiting block is fixedly mounted on one side of the movable block, and a clamping slot engaged to the adjusting gear is formed in one side of the limiting block. By arranging the mounting base at the bottom of the rack jack and connecting the threaded pipe in the mounting base through the threaded column, the threaded column is driven to rotate by rotating the adjusting gear, so that the threaded pipe on the outer side drives a supporting block lift under the action of the limiting slot, and therefore, the supporting height of the supporting block in a corresponding position is changed, and it is convenient to stably place the rack jack vertically and the four corner supported rack jack is relatively good in using stability.
本发明公开了四角支撑式齿条千斤顶,包括齿条千斤顶主体,每个限位槽的内腔上表面均转动连接有贯穿安装底座的螺纹柱,螺纹柱的上端固定连接有调节齿轮,且螺纹柱的外侧螺纹连接有与限位槽匹配的螺纹管,螺纹管的下端固定连接有支撑块,导向固定杆的外侧分别套接有复位弹簧和活动块,活动块的一侧固定安装有限位块,限位块的一侧开设有与调节齿轮啮合的卡固槽。本发明通过在齿条千斤顶底部设置有安装底座,并且在安装底座的内部通过螺纹柱连接有螺纹管,通过转动调节齿轮,带动螺纹柱转动,实现外侧的螺纹管在限位槽的作用下带动支撑块升降,从而改变对应位置处支撑块的支撑高度,方便将齿条千斤顶稳定的竖直放置,使用的稳定性较强。
Four corner supported rack jack
四角支撑式齿条千斤顶
2020-09-18
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 |