The invention discloses a portable hand-cranking jack which comprises the components of a housing which is provided with an accommodating cavity with an opening at the top; a sliding groove arranged in the vertical direction is formed in the inner side wall of the shell. The first screw rod is vertically and rotatably arranged in the accommodating cavity; the moving part is in threaded connection with the first screw rod, and the top end of the moving part extends out of the shell through the opening; a sliding block matched with the sliding groove is arranged on the moving part; the rotating part is rotationally connected with the shell, and one end of the rotating part extends into the accommodating cavity; the first gear is positioned in the accommodating cavity and is mounted on the first screw rod; the second gear is located in the containing cavity, connected with the rotating piece and meshed with the first gear; and the limiting part is used for preventing the rotating piece from rotating along the reverse direction. According to the invention, safety accidents can be avoided.
本发明公开了一种便捷式手摇千斤顶,包括:一壳体,具有一容纳腔,其顶部开口;其中,所述壳体的内侧壁上形成沿竖直方向布置的滑槽;一第一螺杆,竖直转动设置在所述容纳腔内;一移动件,与所述第一螺杆螺纹连接,其顶端经过所述开口伸出所述壳体;所述移动件上设有与所述滑槽相配合的滑块;一转动件,与所述壳体转动连接,其一端深入所述容纳腔内;一第一齿轮,位于所述容纳腔内,并安装在所述第一螺杆上;一第二齿轮,位于所述容纳腔内,并与所述转动件连接,且与所述第一齿轮啮合;一限制部,用于阻止所述转动件沿反向方向转动。本发明能够避免安全事故发生。
Portable hand-cranking jack
一种便捷式手摇千斤顶
2022-07-05
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 |