The jack comprises a base, a lifting plate and an extending plate, the rotating axis of the extending plate and the rotating axis of the lifting plate are located on the side, away from a heavy object, of the rotating axis of the lifting plate, the base is provided with a driving mechanism, the driving mechanism comprises a lead screw, a sleeve, a worm wheel and a worm, the lead screw is sleeved with the sleeve, and the sleeve is in threaded connection with the lead screw; the worm gear is meshed with a worm, and a rotating block is coaxially arranged on the worm; a handle is rotationally connected to the base and comprises a fixed sleeve rod and a rotating rod, a rotating groove is formed in the end face, close to the base, of the rotating rod, and the rotating rod can be inserted into the rotating groove and abut against the inner wall of the rotating groove. When the lifting plate needs to ascend, the rotating rod is rotated to drive the worm to rotate, so that the extending plate moves in the direction away from the rotating block, the end, close to a heavy object, of the lifting plate is driven to ascend to lift the heavy object, the handle does not need to move up and down in the lifting process, and therefore use of the jack is not prone to being affected.
本申请涉及一种手柄可调的千斤顶,其包括底座、举升板及延伸板,延伸板与举升板的转动轴线位于举升板自身的转动轴线远离重物的一侧,底座设置有驱动机构,驱动机构包括丝杆、套筒、蜗轮及蜗杆,套筒套设于丝杆外并与丝杆螺纹连接,蜗轮与蜗杆啮合,蜗杆上同轴设置有转动块;底座上转动连接有把手,把手包括固定套杆及转动杆,转动杆靠近底座的端面上开设有转动槽,转动杆能够插置于转动槽内并与转动槽内壁抵接。在需要举升板上升时,通过转动转动杆从而带动蜗杆转动,使延伸板朝向远离转动块的方向移动,从而带动举升板靠近重物的一端上升将重物抬升,在抬升的过程中不再需要使把手上下移动,从而使千斤顶的使用不易受到影响。
Jack with adjustable handle
一种手柄可调的千斤顶
2023-06-23
Patent
Elektronische Ressource
Chinesisch
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 |