7results about How to "Precise displacement control" patented technology

The application discloses a servo cut-off valve group, which comprises a first valve body and a second valve body integrated on a valve seat. Both the valve bodies are provided with valve cavities, and the valve cavities are internally provided with valve spools driven by a servo motor through a screw rod. The valve bodies are provided with outer ring channels communicated with inlet and outlet of the valve seat on the side surfaces, the outer ring channels are communicated with the valve cavities through a plurality of uniformly distributed lateral flow channels, and the inner walls of the valve cavities are further provided with inner ring channels. The longitudinal flow channels at the bottoms of the two valve cavities are communicated with each other through channels in the valve seat. When the two valve spools synchronously rise above the lateral flow channels, fluid can sequentially pass through the flow channels, and the valve is opened; when the two valve spools synchronously descend to completely cover the lateral flow channels, the valve is closed. The two valve cavities are communicated at the bottoms to form a pressure balance cavity, so that the valve spools are hardly subjected to axial thrust when the valve is closed, and high pressure is converted into sealing force in the radial direction of the valve spools, thereby fundamentally solving the high pressure leakage problem of traditional cut-off valves, and the application is especially suitable for high pressure equipment such as filter presses.

The utility model provides an auxiliary tool for narrow space of airplane standard interface real bullet ground joint test belongs to the technical field of detecting missile, including support frame, it is the shape structure card in the suspension bracket side, namely the support plate of forming the corner end in two sides, two support plates are parallel to each other, threaded hole, it is vertically through setting on one of support plates, threaded rod, it is in threaded hole cooperation rotation is equipped, when threaded rod moves up and down, can touch the spring pin on the suspension bracket and resist into the suspension bracket, the utility model discloses can clamp the tool in the narrow space on the suspension bracket, thereby can press the spring pin into the suspension bracket, further can realize the detection after the need not to transport the missile to the suspension point area and hang.

The utility model provides a kind of gear traction's coating die head wiping assembly and cleaning device, including guide rail, sliding block, mounting bracket, stepping motor, driving gear, transmission gear, elastic round plate and wiping component, guide rail is fixed on coating die head, sliding block is slidably connected with guide rail, mounting bracket is fixed on sliding block, stepping motor is fixed on mounting bracket, driving gear is fixed on the power output end of stepping motor, transmission gear is rotatably installed on mounting bracket and is engaged with driving gear, elastic round plate is fixed on transmission gear and outer periphery is in contact with coating die head surface, wiping component is installed on mounting bracket and wiping end is in contact with coating lip. The advantage of the design is: abandon traditional traction rope traction mode, adopt gear traction, avoid the problem caused by the length change of traction rope, improve transmission stability;Select stepping motor, realize more accurate displacement control, ensure the position accuracy of wiping component each time cleaning, improve cleaning quality.

This invention relates to a car massage device based on a release and collapse mechanism, comprising a base and a massage assembly. The massage assembly includes a massage arm, a kneading base, and a collapse mechanism. The kneading base is rotatably connected to the base, and a kneading shaft is rotatably mounted on the kneading base. The massage arm is mounted on the kneading shaft. The collapse mechanism includes an elastic element and a latching component for locking or unlocking the sliding of the lifting base on the base. Both ends of the elastic element are connected to the base and the kneading base, respectively. Using this technical solution, the invention achieves stable support for the massage arm during normal massage by locking the latching component in cooperation with the elastic element. When subjected to abnormal pressure exceeding the pre-tension of the elastic element, an external force acts on the massage arm, causing the kneading base supporting the massage arm to rotate around the base, and the latching component unlocks. The striking shaft is then pushed by the massage arm and connecting rod, causing the lifting base to slide and collapse.

The utility model provides a kind of lockset lock piece detection device, detection device includes carousel, detection station, detection frame and detection assembly, carousel includes movable outer disc and fixed inner disc, and detection station is equipped on movable outer disc, and detection fixture is installed on detection station, and detection frame is set at fixed inner disc corresponding detection station, and detection assembly is set on detection frame, and detection assembly includes test mechanism lifting cylinder, electric cylinder, force sensor, buffer limiting device and connecting piece, and the synergic cooperation of carousel, detection station, detection frame and detection assembly realizes the automatic detection to lockset lock piece, effectively improves detection efficiency and accuracy, reduces artificial detection cost and error.

This utility model provides a rapidly installable integrated prefabricated pumping station, relating to the field of pumping station installation technology. It includes: a pumping station body; a mounting frame movably connected to the lower end of the pumping station body; four sliding grooves on the mounting frame; a first movable block, a second movable block, a third movable block, and a fourth movable block movably connected to one side of the inner wall of each groove; a movable component movably connected to the lower end of one side of the first movable block; a rotating block movably connected to the side of the movable component away from the first movable block; and a fixed column movably connected to one side of the inner wall of the rotating block. The fixed column has a limit groove. This utility model solves the problem that existing pumping station installations rely on manual measurement and adjustment, which not only affects equipment operating efficiency but also leads to accelerated pump wear and shortened service life.