10results about How to "Avoid friction noise" patented technology

The utility model relates to the technical field of shock absorbers, in particular to a thermal shrinkage film damping spring sleeve, which mainly solves the problems that the shock absorber in the prior art is poor in operation smoothness and generates friction sound, and comprises a spring and a thermal shrinkage film sleeve sleeved on the spring, the inner diameter of the thermal shrinkage film sleeve is 20mm-32mm, the thickness of the thermal shrinkage film sleeve is 0.1 mm-0.3 mm, and the inner diameter of the thermal shrinkage film sleeve is 20mm-32mm. The shrinkage rate of the thermal shrinkage film sleeve is 0.5, and the ratio of the axial length of the spring to the axial length of the thermal shrinkage film sleeve is (3-5): 1.

The present application relates to the technical field of steam humidifier, and discloses a noise reduction structure of steam humidifier convenient to install and a use method, the noise reduction structure of steam humidifier convenient to install, including installation ring, both sides of the installation ring are fixedly connected with lower side plate, the inside of the lower side plate is provided with clamping groove, the side of the installation ring is hingedly connected with upper cover, both sides of the upper cover are fixedly connected with upper side plate, the opposite side of two installation plates is fixedly connected with support rod, the outer wall of the support rod is symmetrically slidably connected with sliding block, the opposite side of two sliding blocks is fixedly connected with spring one, the outer wall of the sliding block is slidably connected in the sliding groove, and the bottom of the sliding block is fixedly connected with clamping block.Under the reaction force of spring one, the sliding block is away from each other along the support rod, drives the clamping block to be away from each other and is clamped in the clamping groove, without using a variety of tools, and the installation of the upper cover can be completed only by simple operation.

The utility model provides a PVC (Polyvinyl Chloride) automotive trim skin with a stick-slip property and an abnormal sound reducing effect, which belongs to the technical field of automotive trim skins and comprises a PU (Poly Urethane) foam layer, an outer skin layer and a PVC layer, and the PU foam layer is positioned between the outer skin layer and the PVC layer; the groove is formed in the top of the PU foam layer; the sponge block and the air bag are arranged in the groove, and the sponge block is located in the air bag; the sponge tube is integrally formed in the center of the top of the sponge block; the lubricant storage cavity is formed in the sponge block; lubricating oil can be temporarily stored through the adsorption capacity of the sponge block to the lubricating oil, a lubricating agent can be extruded to a contact friction area through the oil injection hole under the action of extrusion force generated after the outer skin layer makes contact with other parts, the smoothness of the outer surface of the outer skin layer is improved through the lubricating agent, and the service life of the lubricating oil is prolonged. The friction coefficient between the outer skin layer and other contact parts is reduced, and the friction abnormal sound during relative sliding is reduced.

The utility model relates to a noise reduction solenoid valve technical field especially relates to a car -used normally closed solenoid valve with noise reduction structure, include: valve seat, magnetic separation cover, coil assembly, valve core subassembly and buffer pad, magnetic separation cover one end is fixedly connected with valve seat, coil assembly is set up in the outer periphery of magnetic separation cover, valve core subassembly is coaxial and located in magnetic separation cover, includes dynamic iron core, reset spring and static iron core along the axial direction in proper order, static iron core is fixed in the one end of magnetic separation cover far from valve seat, dynamic iron core can move axially, one end of reset spring is contained in the positioning hole of dynamic iron core, buffer pad is clamped between reset spring and static iron core, and the one end surface of buffer pad faces reset spring and is equipped with limiting portion, is used for carrying out radial location to the end portion of reset spring. Through the setting of buffer pad, effectively cut off spring end surface and static iron core end surface direct contact, avoid the friction abnormal sound of the relative slip of both, improved the ride comfort of whole car.

The utility model provides a kind of vertical installation draws box device, it is related to furniture technical field, including top plate, bottom plate, drawer, drawer is arranged between top plate and bottom plate, and first slide rail assembly is arranged between the upper end surface of drawer and top plate, second slide rail assembly is arranged between the lower end surface of drawer and bottom plate, form mutually parallel guide path, and gap exists between upper end surface and top plate, between lower end surface and bottom plate, the existence of gap avoids drawer movement and generates friction noise with panel, top plate, bottom plate pre-buried bearing substrate, and pre-buried structure is evenly transferred to substrate internal support point with the load that slide rail system bears, effectively inhibit the overturning tendency when drawer full load. So set, the scheme is by the synergic effect of top plate and bottom plate, make drawer in movement whole course receive bidirectional constraint, eliminate lateral displacement possibility, since the existence gap of top plate, bottom plate and the upper end surface and lower end surface of drawer, reduce the friction between top plate and bottom plate, while protecting the lacquer surface of drawer.

The utility model relates to a kind of drive mechanism of electric bed, electric bed and packaging structure of electric bed, including linear motor, motor support, movable bed plate, bedstead, motor support is rotatably connected bedstead, linear motor both ends are rotatably connected motor support, bedstead, movable bed plate is opened with the embedding hole of directly facing motor support, and support plate of fixedly connected movable bed plate is equipped in embedding hole, the motor support is driven by linear motor and is upwardly movable and abuts support plate, to regulate the elevation angle of movable bed plate.This scheme carries out embedded design to bed plate, for under the limited bed body thickness, provide greater driving force arm for driving movable bed plate to overturn, compared with previous scheme, can be more labor-saving when driving movable bed plate to overturn under the same bed body thickness, lower to material requirement;Or under the technical condition satisfying driving torque requirement, bed body thickness can be set to be thinner.

This utility model belongs to the field of switch technology, specifically a silent tactile switch, including a base and a top cover. The base is provided with a first contact and a second contact, both of which extend into the interior of the base. A dome switch is mounted on the base, including a connecting part and a contact part. The contact part is provided with a moving contact that mates with the second contact. The top cover is provided with a button that extends through the top. A silicone pad is provided between the button and the dome switch. The bottom end of the silicone pad has a protrusion that contacts the dome switch, and also has a vent hole and a positioning protrusion on the bottom circumference. The top of the base is provided with a positioning groove that mates with the positioning protrusion. The top cover and the base are riveted together. Through the above structural design, this utility model can effectively reduce pressing and rebound noise, improve the quietness of operation and response sensitivity, and extend the service life.

This utility model relates to a vehicle-mounted host, including a mid-frame and a cover plate covering the mid-frame. The mid-frame includes two parallel side plates, and a positioning structure is provided between the cover plate and the side plates. The positioning structure includes a positioning protrusion on the cover plate and a positioning groove on the side plate. The positioning groove includes a positioning part and an isolation part. The minimum groove width of the positioning part is less than or equal to the minimum groove width of the isolation part. When the cover plate is placed on the mid-frame, the positioning protrusion passes through the positioning part and enters the isolation part. The vehicle-mounted host designed by this utility model can reduce the occurrence of abnormal noises from the vehicle-mounted host structure during vehicle operation, thus improving the driving experience.

The utility model relates to the technical field of dust covers, and discloses a noise-reducing and low-cost comprehensive air spring dust cover which comprises a dust cover body, a plurality of ribs are arranged in the dust cover body, and a first extension ring and a second extension ring which are integrally formed are arranged at the two ends of the dust cover body respectively. A second fastening assembly and a first fastening assembly are arranged on the outer side of the first extension ring and the outer side of the second extension ring correspondingly for fastening. According to the utility model, through the injection structure consisting of the annular runner, the buffer cavity and the vertical runner, the rubber material is uniformly injected and fed from the parting part at the tail end of the dust cover cavity, so that the rubber material is efficiently filled and uniformly distributed, the rubber injection period is shortened, the material waste is reduced, the production cost is obviously reduced, in addition, the trimming efficiency of products is also improved, and the product quality is improved. And the product surface is optimized.

The utility model discloses a high-load impact-resistant pneumatic rod structure, and particularly relates to the technical field of pneumatic rods, the high-load impact-resistant pneumatic rod structure comprises a fixing plate, and the top of the fixing plate is provided with a pneumatic telescopic rod; a bearing plate is mounted at the top of the pneumatic telescopic rod; a first fixing frame is fixedly connected to the top of the fixing plate. A knuckle bearing is mounted in the middle of the first fixing frame; the knuckle bearing is rotationally connected with the first fixing frame; the surface of the knuckle bearing is fixedly connected with a damping rod; the pair of damping rods is arranged at the bottom of the bearing plate and can share partial bearing force of the pneumatic telescopic rod, a heavy object makes contact with the top of the bearing plate, then the force is dispersed to the damping rods on the two sides and the top of the pneumatic telescopic rod, the pneumatic telescopic rod bears large force, and then the pneumatic telescopic rod and the damping rods contract; and the knuckle bearing rotates in the middle of the first fixing frame until the bearing plate stops descending at a proper height, so that the problem that the pneumatic rod is blocked in movement due to deformation or breakage when the pneumatic telescopic rod supports a heavy object can be reduced.