5results about How to "Avoid friction noise" patented technology

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 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.