6results about How to "Improve installation tightness" patented technology

The utility model discloses an air purification device convenient to clean filter screen, including outer frame, still be equipped with inner frame in outer frame, and inner frame can separate in outer frame, and the front and back surface of inner frame is equipped with first air vent and second air vent respectively, and first filter screen and second filter screen are installed in inner frame respectively, and the filter medium is installed between first filter screen and second filter screen, and the surface of inner frame is equipped with at least two sockets, and the filter medium selects one of two sockets and separates out, the specific beneficial effect of the utility model is: based on the structure that inner frame can separate in outer frame, and at least two sockets of inner frame surface setting, and user can select the filter medium from specific socket and take out alone, and it is convenient to flush first filter screen or second filter screen, and can independent cleaning or replacement filter medium, prolongs cleaning efficiency and promotes 60% or more, realizes filter screen layering independent maintenance.

This utility model relates to the field of sealing ring technology and discloses a sealing ring with a flexible skeleton. It uses a flexible, deformable material to replace the traditional metal skeleton structure. The flexible pressure ring and the rubber sealing ring are integrally vulcanized, which is not only easy to process and low in cost, but also has good compatibility with rubber, higher bonding strength, no cracking, and is easy to install and maintain. Furthermore, the flexible pressure ring combines rigidity with its deformable structural characteristics. During installation, the flexible pressure ring can deform to perfectly adapt to and fit the groove structure. Compared with the traditional metal skeleton, it has higher installation sealing performance, contact stability, and service life. The outer diameter of the flexible skeleton is larger than the groove, optimizing the problem of volume slippage in open grooves. An internal support is provided inside the flexible pressure ring. The internal support further improves the axial rigidity support force of the flexible pressure ring, ensuring the contact support stability of the axial side of the sealing ring end, and improving the sealing performance of the sealing ring.

The utility model discloses a kind of submersible pump cable anti-abrasion elastic fixing base, it is related to cable anti-abrasion technical field, including circular ring base, cable and pump body, the mounting hole is provided on the pump body, the lower end of the circular ring base is equipped with first hollow tube, the upper end of the circular ring base is equipped with second hollow tube, threaded groove is provided on the outer wall of the first hollow tube, the diameter of the first hollow tube is less than the diameter setting of mounting hole, first connecting cap is installed to the outside of the first hollow tube, the lower of the circular ring base is equipped with sealing element, the outside of the cable is equipped with cold shrink tube, one end of the cold shrink tube is sleeved in the outside of second hollow tube, the fixing base is made of certain elasticity plastic, cable connecting part is extended tightly wrapped by cold shrink tube, the support performance of cold shrink tube is used to reduce cable impact shake, reduce the abrasion damage of cable, protection effect is better, improve the service life of submersible pump.

The utility model relates to the technical field of breast surgery, concretely to a pipeline connecting mechanism suitable for breast surgery infusion port, including base, butt joint and connecting pipe, the butt joint is fixed in the side of base, and the outside of butt joint is connected with connecting pipe, the outer end of butt joint is fixed with connecting piece, and connecting pipe inserts into the inside of connecting piece and connects with butt joint, the inside of connecting piece is provided with support ring, and the middle part of support ring is fixed with support mechanism, and support mechanism is connected with connecting piece, and the inside support of connecting pipe is provided through support ring. The pipeline connecting mechanism suitable for breast surgery infusion port realizes the connection between connecting pipe and butt joint by inserting connecting pipe into connecting piece, can pull out connecting pipe from connecting piece subsequently, is convenient to replace and dismount, and is provided with support ring in connecting piece, can provide the inside support for connecting pipe, prevents extrusion deformation.

The utility model discloses an adjusting valve suitable for super low temperature environment, including the valve body of foundation, the valve body inside fixed mounting has the through -hole tray, and the through -hole tray inside penetrates fixed mounting has the thread cylinder, the thread cylinder below fixed mounting has the inverted bucket simultaneously, the inverted bucket bottom fixed mounting has the connecting cylinder with inside area leakproof belt, the valve body top penetrates the thread cylinder and is laid with the sealing washer, and the thread cylinder inside penetration is equipped with hand wheel screw rod, this adjusting valve suitable for super low temperature environment, through setting: leakproof belt, connecting cylinder, sealing washer, inverted bucket and through -hole tray to solve the big problem of the internal leakage, external leakage of traditional low temperature high pressure adjusting valve that follows also is more and more obvious, and the urgent need to solve, and the majority of low temperature high pressure valves of domestic use are imported, in the low temperature industrial automation control field in our country, limited to the sealing property and reliability of traditional single low temperature balance sealing washer, it is difficult to satisfy the requirement of user super low temperature, low leakage, high pressure difference.

The utility model relates to the technical field of flat knitting machine, concretely is a kind of yarn nozzle of flat knitting machine roving, including installation structure, installation structure includes installation handle;Yarn nozzle structure is fixedly installed in the lower end of installation handle, and yarn nozzle structure includes wedge-shaped guide cover, and the lower end opening of wedge-shaped guide cover is rotatably installed with one auxiliary roller on the side edge of front and back, and the lower end opening of wedge-shaped guide cover is rotatably installed with two auxiliary rollers on the side edge. In the utility model, the roving is passed through wedge-shaped guide cover, and the yarn is guided to be discharged under the lower end opening of wedge-shaped guide cover, when the yarn nozzle structure moves and adjusts the yarn position, one auxiliary roller, two auxiliary rollers replace the direct contact between the inner wall of wedge-shaped guide cover and roving, to replace the direct friction between the inner wall of wedge-shaped guide cover and the roving sent directly in the form of rolling feeding, reduce friction loss, improve the service life of overall structure, reduce the replacement frequency of yarn nozzle structure.