3results about How to "Maintain position" patented technology

An auto-occlusion safety device is provided for use in preventing rupture of infusion components during rapid infusion procedures. An occlusion valve is disclosed having a threshold pressure that is less than a rupture tolerance of the infusion system components. As the fluid pressure of the infusion system increases beyond the threshold pressure of the occlusion valve, the occlusion valve is automatically activated thereby occluding fluid flow upstream from a vulnerable infusion component. An accumulator is further disclosed for use in combination with the safety device to compensate for time delays in full activation of the occlusion valve.

This invention belongs to the field of glass edging technology, specifically referring to an edging processing device for glass edge treatment. It includes a grinding replacement mechanism, a position sensing component, a tool adjustment component, a belt adjustment component, a belt feeding component, a water tank lifting component, and a leaning support. The grinding replacement mechanism includes a cutter head assembly, a self-locking drive component, and a self-locking grinding head assembly. The cutter head assembly is mounted on the self-locking drive component, and the self-locking grinding head assembly is mounted on the cutter head assembly. This invention achieves cyclic selection of the grinding wheel through the shape matching of the butterfly output head and the butterfly groove. To overcome the technical contradiction that the rotational resistance of the grinding shaft cannot be too large or too small, this solution proposes a rubber ring with fins. A slight reverse rotation when the grinding shaft disengages from the butterfly output head causes the fins to deform and accumulate elastic force, thereby maintaining the position of the grinding shaft in a non-selected state.

The utility model discloses a printed circuit board (PCB) lamination fixing structure, which comprises a first PCB, a second PCB and a lamination supporting column, the first PCB and the second PCB are arranged in an up-and-down lamination mode, the lamination supporting column is connected and supported between the first PCB and the second PCB, the first PCB is provided with a first through hole used for being inserted into one end of the lamination supporting column, and the second PCB is provided with a second through hole used for being inserted into the other end of the lamination supporting column. The second PCB is provided with a first through hole used for being inserted into one end of the lamination supporting column, the second PCB is provided with a second through hole used for being inserted into the other end of the lamination supporting column, the two ends of the lamination supporting column are welded and fixed in the first through hole and the second through hole respectively, and a plurality of electronic elements are fixed to the second PCB and attached to the side edge of the lamination supporting column. The first PCB and the second PCB are welded into a whole through the laminated plate supporting columns, the integral connection greatly enhances the rigidity of the whole structure, and even if encountering external violent impact or vibration interference, stress can be effectively dispersed by means of the powerful supporting of the supporting columns and the dragging effect of stable welding points, and the protection effect of limiting and fixing on electronic elements is also achieved.