1results about How to "Assembly time is short" patented technology

The utility model discloses a novel pumping unit structure relates to automobile maintenance equipment field, aims at simplifying structure, promotes operation reliability. It includes jar body, pipe fitting, sealing piston, connecting rod, elastic element, cam piece and operating handle, and pipe fitting is fixed with jar body and the lower end opening, is equipped with the communicating port of communicating jar body, and there is sealing boss below the communicating port, and sealing piston moves up and down below boss. The connecting rod is connected with sealing piston, and extends to the upper of jar body through pipe fitting and can move relative to pipe fitting, and jar body is equipped with abutting part, and cam piece is rotatably connected with connecting rod and can abut the upper surface of abutting part, and operating handle is connected with cam piece. When the first and second constraint surface of cam piece abut against abutting part respectively, sealing piston is at the sealing position of sticking with boss and the separated communicating position correspondingly, and elastic element applies downward force to connecting rod, and drives sealing piston to move to the communicating position. The structure simplifies components, and can switch sealing and liquid discharge state by rotating operating handle, and is convenient and stable.