31results about How to "With sound-absorbing function" patented technology

The invention relates to a lightweight sound-absorbing environment-friendly interior wall paint. According to the invention, an emulsion is adopted as an adhesive, lightweight perlite is adopted as a main aggregate, and the novel environment-friendly interior wall paint is prepared. A coating prepared with the paint has good sound-absorbing function. The paint comprises the components of: water, the emulsion, titanium dioxide, lightweight perlite, a surfactant, an antiseptic, a film-forming additive, and a thickening agent. The interior wall paint prepared with the lightweight perlite and the other components has the advantages that: the coating has a porous characteristic, such that a sound-absorbing quantification effect can be achieved through the controlling over the thickness of the coating; compared with a perlite decorative board material, the paint can perfectly merge with a coated base material, such that a seamless decorative plane is formed; the color can be adjusted according to requirements, such that a better decorative function is provided. The paint can be used for creating a quiet, beautiful and comfortable environment. The paint can be widely applied in hospitals, hotels, theaters, conference halls and home decorations.

The invention relates to a magnesium silicate fiber blanket belonging to the technical field of fire-proof heat preservation and insulation materials. The magnesium silicate fiber blanket is characterized by comprising the following materials with oxides in percentage by weight: 40%-85% of SiO2, 3%-40% of MgO, 2%-30% of CaO, and the balance of one or the any combination of B2O3, Al2O3, Fe2O3, Na2O and K2O, wherein the total amount of the SiO2, the MgO and the CaO is more than or equal to 85%. The magnesium silicate fiber blanket is processed through the procedures of material melt, centrifugal thread throwing or blowing fiber forming, cotton collection, pinprick, heat treatment, cutting, and the like. The magnesium silicate fiber blanket has functions of non-inflammation, heat insulation, sound absorption and fire prevention and is a fire-resistant heat-preserving heat-insulating fire-proof material which is widely suitable for various heat engineering equipment and pipelines.

The invention discloses an automobile back-row cushion. The automobile back-row cushion comprises a sitting area and a peripheral area, wherein each area comprises a cushion core and a seat fabric; the cushion cores of the sitting area and the peripheral area are constructed by an upper layer foaming material and a lower layer foaming material respectively; the upper layer foaming materials and the lower layer foaming materials are connected in an embedding way through a complementary structure. The machining-assembling method for the automobile back-row cushion comprises the following steps: making a polyurethane foaming material according to the shape of the upper layer of each cushion, making a polypropylene foaming material according to the shape of the lower layer of each cushion core, and assembling corresponding polyurethane foaming materials and polypropylene foaming materials into each cushion core respectively; coating integrally, and fixing the fabric with an injection-molded clamping bar; fixing the cushion on a vehicle metal plate through a dual-layer mushroom hasp. By adopting the automobile back-row cushion, the collision safety index is increased, the weight is reduced, the buffering performance is improved, the passenger comfort is improved, and a sound-absorbing function is realized.

The invention discloses a method and device for sound insulation and noise reduction and relates to the field of tobacco processing, in particular to a sound-insulation noise-reduction system which is mounted on a roll-packing device of a roll-packing workshop of a cigarette factor to serve as a protection door for sound insulation and noise reduction. The sound-insulation noise-reduction system is characterized in that the device is composed of a casing, a rubber coating, a sound-absorbing cloth cover, a sound-absorbing foam metal plate, a fiber sound-absorbing plate, toughened vacuum glass and the like, the rubber coating used for noise reduction coats the inner side of the casing, the sound-absorbing cloth cover, the sound-absorbing foam metal plate, the fiber sound-absorbing plate and the toughened vacuum glass are sequentially mounted on the rubber coating, and then the fiber sound-absorbing plate and the sound-absorbing foam metal plate are mounted. The device is applied to the noise source portion of the roll-packing device of the roll-packing workshop or is used for being produced into the protection door and the like for sound absorption and noise reduction, pollution of the noise source can be controlled, and the effect is obvious.

The invention relates to a grain collecting vehicle and an operation method thereof, and belongs to the technical field of agricultural mechanical equipment. The equipment comprises a grain separationmechanism arranged on a vehicle chassis, the grain separation mechanism comprises a separation bin, and the lower portion of the grain separation mechanism is connected with a grain pushing mechanismused for pushing grain to one side; the grain pushing mechanism is connected with a grain storing bin, and a closed space is formed among the separation bin, the grain pushing mechanism and the grainstoring bin; and a sealing plate for isolating the separation bin and the grain pushing mechanism is hinged to the inner wall of the lower portion of the separation bin, the upper portion of the sealing plate is provided with a limiting plate, and a stretching spring is mounted between the limiting plate and the sealing plate in a corresponding mode. The grain collecting vehicle solves the problem that in the prior art, grain particles are pressed and damaged by blades of an air-closing device, the particle integrity degree in the food processing process is advantageously ensured, and the situation that the grain in the whole grain storing device is affected due to rapid metamorphism after a part of grain is pressed and damaged is avoided.

A Z's nano-class sterilizing-disinfecting sound-absorptive decorative material is prepared from epoxy resin, activated bamboo carbon powder, powdered coal ash and nano material (TiO2, ZnO, or SiO2) proportionally.

The inveition relates to a bonded plate, especially a bonded having excellent sound-absorbing, vibration-damping, and processability. The bonded plate is manufactured by bonding a surface plate and a backing plate backing the surface plate, by an adhesive resin haivng a preset viscosity and excellent sound-absorbing and vibration-damping performance. Thereby, the invention can obtain excellent sound-absorbing and vibration-damping functions from the material, can remarkably reduce the cost of production, and can secure formability equal to that of the conventional steel plate, can further achieve excellent processablity, and can be produced into products by all the conventional processing methods.

The invention provides a PIR foamed cement laminboard for construction. The laminboard comprises a decorative sheet, an acoustical board, a PIR damping sheet and a base board which are sequentially pressed together and bonded through an adhesive, wherein a water-proof coating is arranged between the decorative sheet and the acoustical board, the decorative sheet is a high-strength abrasion resistant composite board, and the lower surface of the base board is rough. The laminboard has a sound absorption function, transmission of vibration can be blocked effectively, and environmental noise pollution is reduced; and the laminboard is firmly connected with the ground after arrangement, and has the advantages of being high in intensity, attractive in appearance, durable, waterproof and moisture-proof.

The invention relates to a composite type brick. The composite type brick comprises a brick body which comprises a base layer and an elastic layer connected with the base layer. According to the composite type brick, the strength of the brick body is ensured through the base layer, elasticity of the brick body is ensured through the elastic layer, the brick is not easy to fracture in the laying process, people can move comfortably on the brick, the good protecting effect can be achieved, and sports health is facilitated; weather-proof performance is better, abrasion resistance is higher, the service life is longer, the strength of a surface layer and the elasticity are adjustable, and personalized products can be provided according to different place demands; and the elastic layer has thesound absorption function, and a floor laid by using the brick has the good mute effect.

The invention relates to an automobile engine compartment internal fuel pump cover and a manufacturing method thereof. The cover is matched with a fuel pump in shape. The cover is characterized in that the fuel pump cover is of a double-layer structure, the outer layer is a hard crust, the inner layer comprises an inner surface layer of a soft crust and a middle layer which is between and connectsthe outer layer and the inner surface layer, and two-step molding is carried out through two molds. Compared with the prior art, the outer layer hard crust has the sound insulation property, the inner layer has the sound absorption function, and meanwhile has the characteristics of high temperature resistance, aging resistance and flame retardancy, and the fuel pump cover can achieve the effect of reducing noise.

The invention discloses an aluminum plate device with a sound absorbing function. The aluminum plate device comprises an upper aluminum plate layer, a supporting aluminum plate and a foundation aluminum plate. The upper aluminum plate layer is arranged at the top end of the foundation aluminum plate. The upper aluminum plate layer is connected with the foundation aluminum plate through the supporting aluminum plate. The position between the upper aluminum plate layer and the supporting aluminum plate is filled with sound absorbing cotton, and the part between the foundation aluminum plate andthe supporting aluminum plate is filled with sound absorbing cotton. An antiskid layer is further arranged on the outer side of the upper aluminum plate layer. The antiskid layer is connected with theupper aluminum plate layer in a sticking manner. A fixed connector is arranged at the bottom end of the foundation aluminum plate, and one end of the fixed connector is connected with the bottom faceof the foundation aluminum plate. By means of the aluminum plate device with the sound absorbing function, many improvements are added on the design of sound absorbing, an aluminum plate can have a sound absorbing function, and therefore the noise problem is effectively solved; the aluminum plate device has a waterproof function, and the service life of the aluminum plate can be effectively prolonged; installation is convenient, and the installation efficiency of the aluminum plate can be effectively improved; and the aluminum plate device is simple in structure, convenient to use, capable offacilitating later-period repairing or maintaining, easy to manufacture and easy to popularize.

The invented water permeable ceramic brick is made from (wt.%) waste wall floor brick 70-90, feldspar powder 8-20, cellulose 1-5, wood dust 1-5, which are ground, sieved and mixed with proper amount of water, then make blank, dry, sintered at 1100-1300 deg.C for 100-140 min., cooling to form water permeable ceramic brick. Advantages: high water permeability, high respiratory performance, high abrasive resistance etc.

The invention discloses a blanket fabric comprising a fabric body. The fabric body is divided into three layers, the internal layer is made of pure cotton, the external layer is woven by using cotton and silk, the layer between the internal layer and the external layer is made of wool, the periphery of the fabric body is provided with a lace, and the periphery of the lace is provided with a cloth strip. The blanket fabric is suitably used as a carpet and a bedding in domestic life, has good warming performance, longer service life and an attractive shape and has the function of sound absorption; the production process and the manufacture method are simple, and the labor intensity of workers is relieved; and the blanket fabric is a novel healthful environment-friendly fabric so as to be beneficially popularized and used.

The invention provides a building assembly type steel structure building external hanging formwork which comprises a first wallboard. A reinforcing frame is fixed to one side of the first wallboard, asecond wallboard is fixed to the side, away from the first wallboard, of the reinforcing frame, and connecting grooves are formed in the two sides, away from the reinforcing frame, of the first wallboard and the second wallboard, wherein splicing plates are arranged in the connecting grooves. According to the building assembly type steel structure building external hanging formwork, when concreteis poured, a vibrating bar penetrates through vibrating bar inserting holes and a communicating opening to enter the position between the first wallboard and the second wallboard, then the position between the first wallboard and the second wallboard is filled with the concrete, meanwhile, the vibrating bar vibrates, and the vibrating bar drives the concrete to flow, so that the concrete is compactly combined; and through the multiple vibrating bar inserting holes, the vibrating bar can be inserted between the first wallboard and the second wallboard of different layers, bubbles between the concrete are discharged, and the strength of the concrete can be effectively improved.

The invention provides an external formwork for a building assembly type steel structure building, which includes a first wall panel, a reinforcement frame is fixed on one side of the first wall panel, and a second wall panel is fixed on the side of the reinforcement frame away from the first wall panel. As for the wall panels, the first wall panel and the second wall panel are provided with connecting grooves on both sides away from the reinforcing frame, wherein a splicing plate is arranged inside the connecting grooves. In the prefabricated steel structure building external formwork, when pouring concrete, the vibrating rod penetrates through the vibrating rod socket and the communication port and enters between the first wall panel and the second wall panel, and then between the first wall panel and the second wall panel When filling concrete, the vibrating rod vibrates at the same time, and the vibrating rod drives the concrete to flow, so that the concrete is densely combined. Through multiple vibrating rod sockets, the vibrating rod can be inserted between the first wallboard and the second wallboard of different levels. The air bubbles in the concrete can be discharged, which can effectively improve the strength of the concrete.

The invention provides a noise-reduction and fire-resistant brick and a preparation method thereof. The noise-reduction and fire-resistant brick is prepared from the following raw materials in parts by mass: 50 to 60 parts of electrically melted magnesia granules, 5 to 15 parts of andalusite powder, 10 to 20 parts of white carbon black, 2 to 6 parts of phenolic resin and 0.69 to 1.275 parts of noise-reduction agent. The noise-reduction and fire-resistant brick provided by the invention has long service cycle and noise-reduction function; the raw materials cost is low, the prepared noise-reduction and fire-resistant brick has excellent heat-resistant performance and heat shock stabling performance; the preparation process is simple, the operation period is short and the production efficiency is high.

A light-weight, sound-absorbing and environmentally-friendly interior wall coating. It is a new type of environmental-friendly interior-wall coating formulated with emulsion as the binder and lightweight perlite as the main aggregate. The coating has good sound-absorbing function. Its components include: water, emulsion, titanium dioxide, light perlite, surfactant, antiseptic and bactericide, film-forming aid, thickener. The interior wall coating made of light perlite and the above components has the following advantages: the coating has porous characteristics, and the effect of quantitative sound absorption can be achieved by controlling the thickness of the coating; compared with perlite decorative boards, it can The coating substrate is perfectly blended to form a seamless decorative surface, and the color can be adjusted according to needs, which has better decorative functions. It is used to create a quiet, beautiful and comfortable environment, and can be widely used in hospitals, hotels, theaters, meeting places and home decoration.

The invention discloses a light-weight engine mount for reducing vibration and noise absorption, which comprises a casing and an inner core located in the casing. The lower plate body is respectively connected with the inner top surface and the inner bottom surface of the shell, and the upper plate body includes a first layer plate, a first sandwich layer and a second layer plate connected in sequence from top to bottom, and the first sandwich layer is in the form of a first layer. Honeycomb shape, its longitudinal section is formed by connecting multiple rows of regular hexagons in sequence from top to bottom, each regular hexagon is provided with a circle connected to the three diagonals of the regular hexagon, and each regular six The diameter of the circle in the polygon gradually increases from top to bottom. When the engine is at idle speed and the vibration amplitude is large, the upper plate body can produce a large damping effect to absorb the vibration generated by the engine, and has a gradient to absorb the vibration. function. In order to overcome the problem that traditional rubber can only provide a small damping effect, it has a better vibration reduction effect.

The invention belongs to the technical field of valves, and relates to a silencing micro-resistance slow-closing butterfly check valve. The check valve comprises a check valve body, the two sides of the check valve body are fixedly connected with a first flange plate and a second flange plate, one side of the second flange plate is fixedly connected with a protrusion, and the outer surface of the protrusion is in threaded connection with a connecting pipe. The silencing micro-resistance slow-closing butterfly check valve has the beneficial effects that a first interlayer and a second interlayer are arranged, the interlayers have the sound absorption function, and noise of the check valve and a connecting pipe can be isolated; impurities in water can be filtered through arrangement of a filtering plate, and the situation that the impurities damage the check valve is avoided; through arrangement of a fixing block, a third flange plate, a third threaded hole, a threaded column and a threaded cap, the second flange plate and the connecting pipe can be fixed; and through arrangement of a third bolt and a connecting plate, the filtering plate can be replaced and cleaned.

The invention belongs to the field of sound insulation equipment, and particularly relates to a light double-layer structure sound barrier and a preparation method, the light double-layer structure sound barrier comprises a middle frame, a first hole, a second hole, a first bolt, a second bolt and a barrier unit; first holes are symmetrically formed in the middle frame; second holes are symmetrically formed in the middle frame; the first acoustic board, the second acoustic board, the third acoustic board and the fourth acoustic board are made of acoustic blankets, the two faces of the first board and the two faces of the second board have the acoustic absorption function, the acoustic insulation function can be achieved through the first board and the second board which are made of metal, and the first board and the second board are provided with the first through hole and the second through hole, so that the sound insulation function is achieved. The first plate and the second plate are rotationally connected to the two sides of the middle frame, the first bolt and the second bolt can be loosened to change the angle of the first plate and the angle of the second plate, and therefore the sound insulation device can adapt to different sound insulation areas and angles, and the optimal sound insulation and absorption effect is achieved.

A bonded plate, which has excellent sound-absorbing, vibration-damping, and processability. The bonded plate includes a surface plate, a backing plate backing the surface plate, and an adhesive resin interposed between the surface plate and the backing plate and bonding the surface plate and the backing plate with each other, wherein the adhesive resin has a thickness from about 0.02 mm to about 0.1 mm. Thereby, the adhesive resin layer of the bonded plate can have sound-absorbing and vibration-damping functions. Further, the bonded plate can remarkably reduce the cost of production and can secure formability equal to that of the conventional steel plate.

The invention discloses a vibration-absorbing and noise-absorbing light engine suspension. The suspension comprises a housing and an inner core located in the housing, the inner core at least comprises an upper plate body and a lower plate body which are oppositely arranged, the upper and lower plate bodies are connected with an inner top face and an inner bottom face of the housing respectively,the upper plate body comprises a first layer plate, a first interlayer and a second layer plate which are sequentially connected from top to bottom, the first interlayer plate is beehive-shaped, the longitudinal cross section of the first interlayer plate is formed by the sequential connection of multiple rows of regular hexagons, a circle which is connected with three diagonal lines of the regular hexagon is arranged in each regular hexagon, and the diameters of the circles in the hexagons in each layer are gradually increased from top to bottom. The suspension has the advantages that when anengine is in an idle state and the vibration amplitude is larger, vibration generated by the engine is absorbed by the upper plate body by generating larger damping effect, and a gradient vibration absorbing function is achieved; the problem that traditional rubber can only provide a smaller damping effect is solved, and a better vibration reduction effect is achieved.

The invention provides a silent unit type curtain wall. The silent unit type curtain wall comprises a first inter-plate sealant strip, a second inter-plate sealant strip, a silicone rubber, a inner fan sealant strip, an aluminum alloy connecting left plate, an aluminum alloy connecting right plate, a first sealing silo, a second sealing silo, a third sealing silo, a hinge, a first hollow laminatedglass, a sound absorbing cotton, a galvanized sheet, a double-sided adhesive, a structural adhesive, a second hollow laminated glass, a curtain wall wallboard plate, a first curtain wall roof plate,a second curtain wall roof plate and a foam rod sealant. This structure chooses the glue glass with better sound insulation performance to provide the first order sound insulation for the silent curtain wall plate, and sets up multi-channel sealant strip to provide sufficient second order sound insulation sealing for the diaphragm, which can further reduce any small clearance to penetrate directly.

The sound-absorbing wire harness blanking cap comprises a fixing layer and a sound-absorbing layer, the sound-absorbing layer is fixed to the back of the fixing layer, the shape of the sound-absorbing layer is the same as that of the fixing layer, and the length and width of the sound-absorbing layer are smaller than those of the fixing layer; a flaring-shaped front line hole is formed in the center of the fixing layer, and a rear line hole is formed in the corresponding position of the sound absorption layer; the side edge of the fixing layer is provided with a front notch directly communicated with the front wire hole, and the corresponding position of the sound absorbing layer is directly communicated with a rear notch of the rear wire hole; an annular groove is formed in the periphery of the fixing layer, and an annular boss used for stopping is arranged behind the groove. And the fixing layer is made of a foaming PE (Poly Ethylene) material. According to the wire harness blanking cap, sealing after the wire harness passes through the center hole can be avoided, the wire harness blanking cap does not need to be integrated to the wire harness in advance, the wire harness structure is simplified, and the installation cost and use are reduced. And sound and air flow in the outer cavity can be effectively isolated. And the fixing device is suitable for fixing single-layer and double-layer metal plates. The foaming PE material is small in density, light in weight and free of peculiar smell.

The invention discloses a production technology of a sound-absorption wood-plastic plate. The production technology comprises the following steps: (1) wood-plastic material formula; (2) filler treatment; (3) wood flour mixing treatment; (4) injection raw material processing; (5) cooling; (6) primary extrusion of an extruder; (7) secondary extrusion of the extruder; (8) cooling. The production technology disclosed by the invention is simple, the feasibility is high, the quality of a produced wood-plastic plate is high, and the service life is long; the sound-absorption wood-plastic plate has better sound absorption effect and can be widely applied to building industry.

The invention discloses an automobile back-row cushion. The automobile back-row cushion comprises a sitting area and a peripheral area, wherein each area comprises a cushion core and a seat fabric; the cushion cores of the sitting area and the peripheral area are constructed by an upper layer foaming material and a lower layer foaming material respectively; the upper layer foaming materials and the lower layer foaming materials are connected in an embedding way through a complementary structure. The machining-assembling method for the automobile back-row cushion comprises the following steps: making a polyurethane foaming material according to the shape of the upper layer of each cushion, making a polypropylene foaming material according to the shape of the lower layer of each cushion core, and assembling corresponding polyurethane foaming materials and polypropylene foaming materials into each cushion core respectively; coating integrally, and fixing the fabric with an injection-molded clamping bar; fixing the cushion on a vehicle metal plate through a dual-layer mushroom hasp. By adopting the automobile back-row cushion, the collision safety index is increased, the weight is reduced, the buffering performance is improved, the passenger comfort is improved, and a sound-absorbing function is realized.

The invention discloses a movable shutter with a sound absorption function. The movable shutter comprises a fixed frame, a plurality of blades hinged into the fixed frame, a movable frame arranged in the fixed frame and blade connecting rods respectively hinged with the blades and the movable frame, and each blade comprises a blade shell and a sound absorption material arranged in the blade shell. The movable shutter has the beneficial effects that the sound absorption materials are arranged in the blades, so that the blades have a sound absorption function, noise transmitted from the interior of a locomotive to the outside can be reduced, and noise pollution to the environment outside the locomotive is reduced.

The invention discloses a decorative ceramic composite board having sound absorption function, which includes a base layer, a sound absorption layer and a decorative layer. The sound absorption layer is provided with honeycomb-like sound absorption holes. A plurality of long slots are disposed in each sound absorption hole. Two free ends of each long slot are both arc-shaped. Two symmetrical sound insulation parts are arranged in each long slot and are protruded from the bottom surface of the sound absorption hole. The two sound insulation parts divides the long slot into three parts: a first sound absorption slot hole, a second sound absorption slot hole and a third sound absorption slot hole, wherein the second sound absorption slot hole is located between the first and the third sound absorption slot holes and the first and the third sound absorption slot holes are located symmetrically relative to the second sound absorption slot hole. One side of each of the two sound insulation parts is inclined surface. The two inclined surfaces are respectively closed to the first and the second sound absorption slot holes. The sound absorption structure can attenuate sound sources in low-frequency band and high-frequency band, so that the board has good environmental noise reducing function.

The invention discloses a suspended ceiling with sound-absorbing function, which includes a fixing piece, a pull rod, a guide block and a decorative top plate, the fixing piece is fixedly connected to the lower part of the building floor through expansion screws, and the lower bearing of the adjusting bolt is connected with a pull rod, The inner side of the hanger is provided with a bearing keel, the outer side of the auxiliary keel is sleeved with a second connecting block, the inside of the base plate is provided with a first gypsum board, and the bottom of the suction cotton is provided with a sound insulation board. The inside of the base plate is embedded with a mounting seat, the outer side of the movable column is fixedly connected with a first limiting block, the outer side of the movable column is covered with a second limiting block, and the upper bolt of the decorative top plate is provided with a mounting block, And the outer side of the mounting block is provided with a clamping block. The suspended ceiling with sound-absorbing function can effectively improve the sound-absorbing and noise-reducing effect of the suspended ceiling, can conveniently complete the construction of the keel and adjust the height of the suspended ceiling, and at the same time facilitate the disassembly and replacement of the decorative ceiling in the later stage.