48results about How to "Eliminate friction noise" patented technology

The invention relates to a spin-orbit type reciprocating piston compressor, belonging to the technical field of compressors. According to the spin-orbit type reciprocating piston compressor, a conical thrust pin or a rolling body is in contact and matched with a spin-orbit surface of a rotor, and therefore a speed difference at the contact part between the conical thrust pin or rolling body and the spin-orbit surface of the rotor can be reduced or even eliminated, and a slippage phenomenon between the thrust pin or rolling body and the spin-orbit surface of the rotor can be eased, thus reduction of part abrasion and frictional noise caused by slippage can be facilitated; because a cooling fan is used for directly cooling a cylinder cover of the compressor, whole unit temperature of the compressor can be reduced, temperature rise of lubricating oil is further reduced and lubricating performance of the lubricating oil is increased, and therefore reduction abrasion and frictional noise is facilitated as well; and because a release link mechanism is adopted and an interval eliminating spring is arranged on the release link at the same time, the release link can be well close to a sliding block under the action of the interval eliminating spring, and the sliding block enables the thrust pin or rolling body or the spin-orbit surface of the rotor to be well contact and matched, and therefore various intervals among parts are effectively eliminated, and reduction of impact noise and impact abrasion of parts can be facilitated.

The invention relates to hardware door lock accessories, and provides a noiseless lock with magnets. The noiseless lock with the magnets is provided with a box bottom assembly, a box cover, a rotation block, a lever-handle sleeve, a tension spring, a driving block, a reset spring, a lock tongue assembly and a cover buckling assembly. The front end of the box bottom assembly is provided with a lock tongue hole, and the inner portion of the box bottom assembly is provided with a rotation piece pivot, a lever-handle sleeve embedding hole, a lock tongue guide groove, a driving guide groove and a fixed tension spring embedded column. The lock tongue magnet is arranged in a lock tongue and the box buckling magnet is arranged in the box buckling assembly. The lock tongue assembly is embedded into the lock tongue guide groove, the driving block is embedded into the driving guide groove, the lever-handle sleeve is embedded into the lever-handle sleeve embedding hole and the rotation block is embedded on the rotation pivot through a pivoting hole in the middle of the rotation block. The noiseless lock realizes the function that under the attraction effect of the magnets, locking is realized as the lock tongue stretches out directly, achieves the effect that noise generated due to the fact that collision and friction are generated between the inclined lock tongue and the cover buckling assembly when a door is closed is eliminated and achieves a better silencing effect.

The invention relates to the technical field of an indoor decoration material, in particular to a building block type water passing floor board. The building block type water passing floor board comprises water passing boards and a floor board surface layer, wherein each water passing board is provided with a first water passing passage; the two end opening parts of each water passing board are fixedly provided with water passing sealing assemblies; each water passing sealing assembly is provided with a second water passing passage; the at least two water passing boards are connected together through sealing connecting pipes provided with sealing connecting plates; the water passing boards positioned at the two ends of the building block type water passing floor board are respectively connected with end part connecting elements through sealing connecting pipes; each end part connecting element is provided with a longitudinal pipeline and a transverse pipeline; and the transverse pipelines, the longitudinal pipelines, the sealing connecting pipes, the first water passing passages and the second water passing passages are mutually communicated. The building block type water passing floor board solves the technical problem that the length of the existing air conditioning floor board cannot be flexibly configured. Under the condition of maintaining the advantages of the air conditioning floor board with the replaceable surface layer, the building block type water passing floor board also has the advantages that the production, the transportation and the installation are convenient; deformation cannot easily occur; the noise is low; and the cost is low, and the like.

The invention relates to a laptop computer, a negative phototropic module and a light guiding pate. The laptop computer is formed by a host machine and a liquid crystal display apparatus. The liquid crystal display apparatus is connected with the host machine and is formed by a liquid crystal display plate and a negative phototropic module. The negative phototropic module is positioned under the liquid crystal display plate. The negative phototropic module is formed by a light reflecting cover, a light guiding plate and a linear light source. The light guiding plate possesses an association side. The association side is embedded in the light reflecting cover. The linear light source is positioned between the light reflecting cover and the light guiding plate. The light reflecting cover is touched on the surface of the light guiding plate.

A micro-suspension panel installation structure with strong vibration feedback, including an elastic energy-absorbing screw pad that can be set on the screw. The elastic energy-absorbing screw pad is a washer structure. The outer ring diameter of the elastic energy-absorbing screw pad matches the outer diameter of the screw head part of the screw. Since the elastic energy-absorbing screw pad is made of elastic energy-absorbing material, the elastic energy-absorbing screw pad can make the relative position between the panel and the opponent move, so that the panel is in a slightly suspended state to eliminate abnormal noise, and due to the elastic energy absorption The screw pad has a slight displacement tendency of expansion and contraction, so it can absorb energy from the impact, so that the mechanical energy of the vibration device can be converted into heat energy and consumed, thereby eliminating abnormal noise; because the panel is in a state of micro suspension, Therefore, the load of the vibration device is only the panel, so that the amplitude of feedback through the panel will be larger, increasing the authenticity and experience of smart touch. Suitable for cars.