2results about How to "Do not interfere with normal work" patented technology

This invention discloses a HVAC duct filter and cleaner, belonging to the technical field of HVAC duct components. It includes an oblique tee, a stainless steel filter screen, a sealing base, a cleaning valve, and a drain pipe assembly. The oblique tee has a neck on its inner side; a retaining edge is provided near the input end of the neck; the stainless steel filter screen has a cylindrical structure, with one end installed to the neck and the other end fitting against the retaining edge; the other end of the stainless steel filter screen connects to the inclined end of the oblique tee; the sealing base includes a pipe seat body screwed to the inclined end of the oblique tee, and the front end of the pipe seat body is integrally formed with a guide ring seat that fits against the inner wall of the stainless steel filter screen; the stainless steel filter screen fits against the end of the pipe seat body; the cleaning valve includes a cavity seat screwed to the lower end of the pipe seat body. This HVAC duct filter and cleaner uses flow pressure to achieve online cleaning of the stainless steel filter screen, and the discharge of impurities from the flow medium will not affect the normal operation of the HVAC system.

This invention relates to a quick-connect internal cooling assembly for ball screw pairs, belonging to the technical field of ball screw pairs. The ball screw pair includes a screw, a nut that mates with the screw, and a ball circulation chain disposed between the screw and the nut. The internal cooling assembly is fitted onto the outside of the nut and includes a detachable cooling sleeve connected to the nut and a main circulator and a secondary circulator disposed at both ends of the cooling sleeve. Channels within the cooling sleeve, the main circulator, and the secondary circulator together form a circulation channel. The circulation channel has a coolant inlet and a coolant outlet corresponding to the main circulator. The internal cooling assembly of this invention has an independent structure and can be installed outside the ball nut of the ball screw pair. It allows for quick-connect installation without modifying the screw or nut structure, does not interfere with the normal operation of the ball circulation chain, return mechanism, and dustproof device, and does not change the original installation dimensions and motion of the ball screw pair. This significantly improves the structural versatility and adaptability, enabling convenient and quick internal cooling modification of ordinary ball screw pairs.