2results about How to "Arbitrary adjustment" patented technology

The present invention provides a manually operated diaphragm valve that maintains compactness through a simple construction while simultaneously allowing for setting the valve body's opening and closing range. This design is unaffected by individual differences in the valve's internal shape, ensuring sufficient flow rate when fully open, and also allowing for arbitrary adjustment of the fully open flow rate. The valve body 1 includes a valve body 12 assembled inside a main body 10 and a main shaft 13 threaded into the main body 10 in a lifting motion, separating the valve body 12 from the valve seat 14. A handle 2 is mounted above the valve body 1 for manually rotating the main shaft 13. Near the upper part of the valve body 1, a fully open position adjustment mechanism 20 is provided. This mechanism restricts the rotation of the handle 2 on the fully open side, setting the upper limit of the flow rate of the valve body 12 when fully open.

The utility model relates to door stop technology field, proposes a kind of magnetic powder clutch type door stop, including base, is connected on door body;Roller rotation is arranged on base, the outer edge of roller and ground rolling contact;Magnetic powder box is arranged in the side of base and has inner cavity, and inner cavity contains magnetic powder;Rolling axle is set on the roller and is rotatably connected with base, and the first end of rolling axle is inserted into magnetic powder box;Clutch piece cover is set on the first end of rolling axle and is located in magnetic powder box, and clutch piece has first gap between the inner wall of inner cavity;Wherein, magnetic powder is under the action of external magnetic field and will fill in first gap, further prevent the rotation of clutch piece, rolling axle and roller. Through the above technical scheme, the problem that the magnetic resistance of the existing magnetic type door stop is insufficient due to the small internal magnetic body, which makes the door body stop rotating.