116 results about "Acoustical insulator" patented technology

The invention relates to the technical field of material analysis, and discloses an intelligent raw material composition screening method and system based on a sound insulation material, and the method comprises the steps: collecting acoustic characteristic test data, microstructure data and chemical composition data of a candidate sound insulation material; performing frequency response curve decomposition on the acoustic characteristic test data to obtain a characteristic frequency band sound absorption coefficient, and constructing an acoustic impedance tensor of the sound insulation material to analyze the sound wave dissipation performance of the candidate sound insulation material; calculating the pore distribution entropy and connectivity index of the candidate sound insulation material to analyze the sound wave propagation retardation efficiency of the candidate sound insulation material; analyzing the molecular chain flexibility and interfacial compatibility of the candidate sound insulation material to evaluate the acoustic performance stability of the candidate sound insulation material for multi-component compounding; and screening a target material from the candidate sound insulation materials by using sound wave dissipation performance, sound wave propagation retardation efficiency and acoustic performance stability. The performance matching degree of the raw materials screened out of the sound insulation material in actual composite use can be improved.

The invention provides a high-strength sound-insulation fireproof composite board, and relates to the technical field of composite boards. The frame body is of an H-shaped structure, and aerogel is arranged at the two ends of the inner side of the frame body; the frame body is provided with the sound insulation plates, the sound insulation plates are symmetrically arranged at the two ends of the inner side of the frame body, noise sound waves penetrate through the fireproof plates and then are reflected and refracted multiple times in the spiral sound absorption holes, the sound wave propagation path is effectively disturbed, the efficient sound absorption characteristic of aerogel is matched, and a multi-stage attenuation mechanism for noise of different frequency bands such as high frequency and low frequency is formed. Compared with a traditional single-material sound insulation mode, the composite structure breaks through the bottleneck of sound insulation performance, can meet the noise reduction requirements in complex noise environments such as building decoration and industrial factory buildings, and solves the problems that a traditional board mostly depends on a single sound insulation material to achieve the noise reduction function, systematic acoustic structure design and the material synergistic effect are lacked, and the noise reduction effect is poor. The noise reduction requirements in complex noise environments such as high frequency, low frequency and the like are difficult to meet.

The utility model relates to the field of noise reduction equipment, specifically disclose a sound attenuation room of reducing noise, including a plurality of by the sound attenuation room main part of inner panel and outer panel, the sound attenuation room main part is connected each other through the connecting structure to form a casing with the cavity, the sound attenuation room main part adopts integrated structure, constitutes by the wallboard of Q235A material, ceiling and access door, and ceiling can be individually detached, the sound attenuation room is filled with fire -resistant sound attenuation cotton, and the fire -retardant sound attenuation cotton is cut even neat and tightly wrapped in the wallboard, the utility model provides a sound attenuation room of reducing noise, through the connecting design of optimization air duct and wallboard, reasonable layout equipment, adopt sound insulation material and set up sound attenuation device etc.

To provide a lightweight material exhibiting an excellent sound insulating effect.SOLUTION: A sound insulating material 1 comprising a resin composition 2 in which cellulose nanofibers 3 are dispersed is used.SELECTED DRAWING: Figure 1

The utility model discloses a magnetorheological sound insulation cotton damping with anti -interference structure relates to sound insulation material technical field, including sound insulation cotton layer and anti -interference structure layer. The composite electromagnetic shielding layer of the magnetorheological sound insulation cotton damping with anti -interference structure outermost layer is alternately woven composite by nanometer copper net and graphene film, can be all -round shielding to electromagnetic interference, creates stable electromagnetic environment for the inside magnetorheological liquid filling cavity, effectively avoids the outside electromagnetic signal interference magnetorheological liquid response to the magnetic field, guarantees its rheological characteristic stable play, the three -dimensional shock attenuation layer of inner layer adopts the even arrangement of hexagonal honeycomb -like elastic rubber film and viscoelastic damping block, and is matched with interval distribution's shock attenuation spring and shock attenuation rubber block, can form multistage shock attenuation system, effectively absorbs and buffers mechanical vibration, greatly reduced the influence of outside vibration to sound insulation cotton layer and magnetorheological liquid filling cavity, has improved the reliability of product under complex vibration environment significantly.

This invention belongs to the field of building materials technology, specifically disclosing a sound-absorbing porous foamed concrete composite board and its preparation method. Using foamed concrete as the substrate of the composite board effectively solves the problem of poor environmental performance of traditional sound insulation materials. Compared with materials such as polystyrene and sound-absorbing rock wool, it does not require a large amount of energy for preparation and can utilize recycled raw materials. It does not produce toxic powder after aging, reducing harm to the air environment and human health, while also avoiding the flammability hazards of traditional materials. The closed-cell sound insulation layer's sealed pores can block direct sound wave penetration, achieving basic sound insulation. The sound-absorbing pores of the porous sound-absorbing layer, combined with the interconnected channels, introduce incident sound waves into the interior. Energy is dissipated through reflection and friction within the channels, forming a dual protection of "sound absorption and sound insulation." This solves the core problem of poor sound insulation performance of traditional concrete and compensates for the short lifespan of traditional sound insulation materials, extending the overall service life of the board.

The invention provides a noise reduction air source heat pump which comprises a movable frame, an air source heat pump body and a sound insulation cover are arranged on the movable frame, the air source heat pump body is located in the sound insulation cover, the top of the air source heat pump body penetrates out of the sound insulation cover, first noise reduction holes are evenly formed in the inner side face of the sound insulation cover, and a sound insulation space is formed in the sound insulation cover. The sound insulation space is filled with sound insulation cotton. Compared with the prior art, the noise reduction device has the following beneficial effects that the semicircular sound insulation cover, the I-shaped sound inlet barrel and the combined noise reduction piece of the cross frame are arranged in the air inlet and outlet frame, and multiple times of refraction and attenuation of sound waves are achieved through the multiple layers of noise reduction holes, namely, the second noise reduction hole, the third noise reduction hole and the fourth noise reduction hole; the sound wave propagation path can be prolonged through the structure of the I-shaped sound inlet barrel, the sound wave energy is further segmented through the cross frame, multi-stage filtering of airflow noise and equipment operation noise is achieved in cooperation with the sound insulation material, the noise reduction effect of the air inlet and outlet channel is greatly improved, and finally the noise reduction function of the air source heat pump is achieved.

The present application relates to sound insulation equipment technical field, more specifically, it relates to a kind of full-closed sound barrier based on building energy-saving sound insulation material board, comprising: building energy-saving sound insulation material board, door type steel frame structure and self-starting smoke outlet structure;Building energy-saving sound insulation material board is equipped with multiple, multiple building energy-saving sound insulation material board is respectively installed in the side and top of door type steel frame structure;Self-starting smoke outlet structure is closed and installed in the normally closed smoke outlet of door type steel frame structure;When the fire occurs in the full-closed sound barrier and produces a lot of smoke, self-starting smoke outlet structure removes the plugging of normally closed smoke outlet.The present application uses building energy-saving sound insulation material board and door type steel frame structure to cooperate as enclosure structure, effectively reduce traffic noise;Self-starting smoke outlet structure is also installed, effectively ensure the use safety under emergency state.

The invention discloses a door and window sound insulation curtain and belongs to the field of sound insulation materials. Butyl rubber sound insulation felts are connected to the upper side and the lower side of the sound insulation cotton, and the sides, away from the sound insulation cotton, of the butyl rubber sound insulation felts are connected with oxford cloth. Preferably, the sound insulation cotton, the butyl rubber sound insulation felt and the oxford fabric are sewn in a thread mode. Multiple materials are compounded to synergistically resist sound waves, and the sound insulation effect is better than that of a traditional product; and the material is easy to obtain, the cost is controllable, the volume production is easy, and the anti-layering anti-sticking fabric is suitable for families, offices, hospitals and other places, and the use cost is reduced.

A nozzle for an applicator by which a flowable viscous material suitable for forming a liquid applied sound deadener can be distributed, the nozzle comprising: a proximal end releasably coupled to the applicator and having an end side in which a single proximal opening is formed; a distal end opposing the proximal end and having an end side in which a single distal opening is formed; and an interior hollow chamber defined between the proximal end and the distal end and in fluid communication with both the proximal opening and the distal opening, the nozzle being configured such that when being distributed by the nozzle, the flowable viscous material can be supplied from the proximal end to the distal end and discharged out of the distal opening, and the distal opening has a straight edge and a sawtooth-shaped or sine-shaped or wave-shaped edge opposing the straight edge.

The invention relates to the technical field of wall sound insulation materials, in particular to a preparation method of a high-sound-absorption composite wall material which comprises the following raw materials in parts by weight: 50-60 parts of a base material, 20-30 parts of an additive, 10-15 parts of an adhesive, 8-10 parts of a flame retardant, 10-15 parts of deionized water, 10-12 parts of glass wool, 6-8 parts of rock wool and 6-8 parts of an additive solution. According to the invention, the calcined illite forms a porous structure, the interlayer spacing is enlarged, when sound waves enter tiny pores of the porous structure, air molecules vibrate at a high speed in a narrow channel, the speed of air molecules close to pore walls is reduced, friction between the molecules and friction between the molecules and the pore walls consume sound wave energy, and sound waves with different frequencies are matched; the carbon black particles fill gaps of rubber molecular chains, so that pore closing and molecular energy absorption caused by thermal expansion are avoided, sound wave transmission is blocked, the overall sound insulation index is improved, and the sound absorption performance of the material is remarkably improved.

The invention relates to a spacer device for a glazing unit, the spacer device comprising a straight profile (1, 10, 100) that comprises at least four walls (3, 4, 5) defining therebetween at least one chamber (2, 21, 22), the profile extending over a profile length, one (3) of the walls comprising a plurality of periodically arranged perforations (6). The chamber (2) comprises an acoustic insulation material (8) and, optionally, a desiccant (9). Any one (4, 5) of the walls not comprising the perforations has at least one longitudinal through-opening (40, 51, 52) which extends at least partially over the length of the profile (1, 10, 100), the at least one longitudinal through-opening (40, 51, 52) being hermetically sealed by a sealing closure element (20), fixed at least to the wall (4, 5) having the at least one longitudinal through-opening (40, 51, 52).

To provide a light-weight soundproof material which is composed of a polyurethane foam and offers high soundproofing capability.SOLUTION: A soundproof material composed of a polyurethane foam having a coating layer on a surface thereof is provided. The coating layer exhibits a breathability (as per JIS K6400-7:2012A) of 10 L / min or less and a portion on the inner side the coating layer exhibits a breathability (as per JIS K6400-7:2012A) of 15 L / min or greater. The polyurethane foam has density (as per JIS K7222:2005) that is less than 130 kg / m3.SELECTED DRAWING: Figure 1

The utility model discloses a modularized heat preservation and sound insulation board which comprises an installation shell and a main board body assembled in the installation shell, a first assembly protruding board is fixedly installed on the front side of one side of the installation shell, and a second assembly protruding board used in cooperation with the first assembly protruding board is fixedly installed on the rear side of the other side of the installation shell. The utility model relates to the technical field of heat preservation and sound insulation boards. According to the modularized heat preservation and sound insulation board, through cooperation of the first assembling protruding board, the second assembling protruding board and the tightening bolts, the heat preservation and sound insulation boards can be assembled in a concave-convex splicing mode, tightening treatment can be conducted during concave-convex assembling, and the sealing performance of the heat preservation and sound insulation boards during assembling is improved through the concave-convex mode; through cooperation of the heating layer and the heating wire, heating treatment can be conducted on the interior of the heat preservation and sound insulation board in the low-temperature environment, and the situation that the sound insulation performance is weakened due to the fact that the sound insulation material is hardened and the elasticity is reduced in the low-temperature environment can be avoided through heating.

The utility model provides a multi-cavity co-extrusion profile which comprises a profile provided with a cross-shaped cavity, a set of heat preservation cavities and a set of sound insulation cavities, and the profile is concaved inwards to form a mounting groove; the heat preservation connecting piece is used for connecting the two profiles and is matched with the mounting groove; the first trapezoidal block is connected with the two profiles; and the second trapezoidal block is connected with the two profiles, and the second trapezoidal block is matched with the first trapezoidal block. The utility model relates to the technical field of co-extrusion profiles, in particular to a multi-cavity co-extrusion profile. Aiming at the defects in the prior art, the utility model develops the multi-cavity co-extrusion sectional material, and the multi-cavity co-extrusion sectional material is provided with a plurality of cavities, so that heat-insulating and sound-insulating materials can be extruded into the cavities, the multi-cavity co-extrusion sectional material is convenient to assemble, and the construction efficiency is improved.

The application discloses a floor heating simulation design method and device, equipment and a storage medium. The method comprises the following steps: obtaining building design house type data; obtaining a house type geometric model of the building design house type decoration material arrangement according to the building design house type data; obtaining an indoor acoustic simulation space model of a set building house type according to the house type geometric model of the building design house type decoration material arrangement and setting position information of a sound source device in the house type geometric model; obtaining an indoor acoustic simulation space grid model and a field distribution of an indoor acoustic design variable according to the indoor acoustic simulation space model of the set building house type and grid division of the indoor acoustic simulation space model. The application can understand whether the current indoor design can fully meet the sound insulation demand by obtaining the required house type for design and simulation, so as to adjust the use and layout of the sound insulation material and create a comfortable acoustic environment.

The utility model discloses a sound insulation and noise reduction photovoltaic module sound insulation and noise reduction photovoltaic module, including frame, photovoltaic cell piece layer, double -layer toughened glass and sound insulation layer, the utility model discloses transparent sound insulation layer sets up between double -layer toughened glass, adopts high molecule transparent sound insulation material, can effectively reduce the outside noise spread, improves the sound insulation performance of component, and photovoltaic cell piece layer is closely connected fixed through bonding encapsulating material, ensures the leakproofness and weather resistance of component connection, and the sealing gasket adopts the combination of elastic sealing strip and structural glue, and the overall sealing and shock attenuation effect are enhanced, and the sound insulation and noise reduction photovoltaic module not only has good power generation efficiency, but also can improve the acoustic comfort of building environment, is especially suitable for the photovoltaic building integration BIPV project of being close to noise source, improves the overall functionality and residential comfort of building.

A floor type safe discharging platform for transferring building energy-saving sound insulation materials comprises a base, an extending base is fixed to the periphery of the base, baffles are fixed to the left side and the right side of the extending base, a notch is formed in the side, corresponding to the extending base, of the periphery of the base, and a moving motor is fixed to the base. A moving screw extending to the extending base is fixed to the output shaft end of the moving motor, a guide rail is fixed to the extending base, a moving base is slidably connected to the guide rail, the moving base is connected with a building energy-saving sound insulation material box through a connecting mechanism, a transport vehicle is arranged in the notch, and a second inserting rod matched with the connecting mechanism is arranged on the transport vehicle. And a limiting mechanism is arranged between the transport vehicle and the notch. The device solves the technical problems of high working difficulty, low efficiency and the like in the prior art, and has the advantages that the frequency of transferring and carrying the building energy-saving sound insulation material is reduced, so that the working difficulty is reduced, and the working comfort is improved.

An acoustic panel has a modular front cover that facilitates replacement by the end user and an acoustic insulator made from rigid fiberglass. The front cover is a silicone edge graphics panel made from an acoustically transparent cloth and removably insertable into a front frame attached to the rigid fiberglass board. An interior front cloth and a rear cloth, together with wooden exterior side panels, provide a protective barrier between the user and the rigid fiberglass board, even during removal and replacement of the front cover. Thus, an end user can replace a worn-out front cover with a new one, or simply replace the front cover whenever a new design is desired.

A sound attenuated material handling element reduces vibration and sound in a material handling system. The material handling element may be a sound attenuated roller for use in a roller conveyer or a sound attenuated nestable tote for receiving and transporting articles in the material handling system. Reducing vibration in material handling element reduces the noise produced by the element. The sound attenuated roller includes sound attenuating material disposed inside of the roller and in contact with the inner surface of the roller body. The sound attenuated nestable tote includes sound dampening material disposed in or formed with the tote structure. The sound damping material may be integrally formed with the roller or tote in order to maximize vibration and noise attenuation. Three dimensional computer analysis may be used to determine optimized locations for placement of the sound damping material on the roller or tote.

The utility model provides a kind of assembled sound insulation floor, belong to building floor technical field, including concrete load-bearing layer and sound insulation board, the top of concrete load-bearing layer is embedded with threaded steel, the inside of sound insulation board is provided with sound insulation material, the top of sound insulation board is provided with the first through-hole that penetrates its itself in array, sound insulation board is set in the top of concrete load-bearing layer, threaded steel is penetrated to its top from the first through-hole of sound insulation board, sound insulation board has multiple, the top of any adjacent four sound insulation boards is provided with scissors fixed frame in the meeting place, four corners of scissors fixed frame are respectively set on the threaded steel adjacent to sound insulation board, and threaded steel is fixed using nut, solve the single structure of existing assembled floor floor, multiple homogeneous structure or simple superposition structure are used, cannot satisfy the problem of diversified sound insulation requirement.

The utility model discloses an anti-impact reinforced road sound insulation barrier, relates to sound barrier field, including pillar, silencing plate and double-layer sound insulation glass, the inside of pillar is fixedly connected with noise reduction plate, the bottom end of pillar is connected with two sets of hinge seat, and the bottom end of hinge seat is connected with fixed mount, and the fixed mount is connected with the sound insulation glass. One side of the hinge seat is connected with two sets of damping spring rods, one end of each damping spring rod is connected with a clamping seat, and an anti-collision mechanism is arranged between the two sets of clamping seats. By means of a multi-level energy absorption and displacement adjusting mechanism, efficient impact energy counteracting and structure protection are achieved. By means of the multiple layers of sound insulation materials, the fine anti-collision mechanism design, the flexible installation and maintenance structure and the attractive additional design, a more comprehensive and more optimized solution is provided, and the sound insulation and anti-collision requirements in the complex environment can be better met.

The utility model relates to a prefabricated cabin structure with sound insulation and noise reduction functions, the prefabricated cabin comprises a bottom plate, side plates and a top plate, the bottom plate is designed to be of a multi-layer structure and comprises an anti-skid layer, a first supporting layer, a first sound insulation layer, a second supporting layer and a second sound insulation layer, the anti-skid layer is composed of an inclined plate and a flat plate, and the inclined plate and the horizontal plane form an angle of 10-15 degrees; the drainage and anti-skid effects can be obviously improved; the first supporting layer is composed of a supporting plate and supporting legs, the contact area between the supporting legs and the ground is small, and vibration transmission is reduced; the second supporting layer is made of a vibration absorption material, and ground noise and vibration are further isolated; the second sound insulation layer is arranged on the second supporting layer, plays a sound insulation role and bears the first sound insulation layer, the first sound insulation layer can be made of a flexible sound insulation material, the noise reduction effect is further enhanced, and due to the structural design, the stability and the sound insulation effect of the cabin body are improved, noise pollution is reduced, and the cabin body is easier and more convenient to install.

To provide a soundproof member capable of preforming sound insulation for a compressor with a simple configuration.SOLUTION: A soundproof member disclosed herein performs sound insulation for a compressor, and comprises a substantially box-shaped body that covers each protruding surface of a box-shaped terminal part that is provided on a side surface of the compressor and protrudes from the side surface of the compressor. Consequently, it is possible to easily cover the terminal part by the soundproof member, thereby suppressing noise when the compressor is operating.SELECTED DRAWING: Figure 3

The utility model relates to the technical field of sound insulation house circuit wiring, in particular to a sound insulation board with a built-in circuit. Comprising a plurality of spliced wallboard bodies, a built-in circuit is pre-buried in each wallboard body, each built-in circuit comprises a JDG pipe and a power line arranged in the JDG pipe, each wallboard body comprises a punched metal acoustic board and an outer board, and the space between the punched metal acoustic board and the outer board is filled with a sound insulation material; the built-in pipeline is arranged in the wallboard body, so that the problem that a sound insulation room is not attractive and not firm due to the fact that the pipeline is externally arranged in the sound insulation room building technology is effectively solved; the circuit is pre-embedded in the board of the sound insulation room, so that the integration level of the circuit is higher; and by arranging the grooves, the wire arrangement grooves, the arc-shaped grooves and the like, on one hand, the wiring difficulty can be reduced, and on the other hand, the main power line can be conveniently fixed.

The application belongs to the technical field of sound-absorbing and sound-insulating materials, and discloses a sound-absorbing and sound-insulating material and a preparation method. The sound-absorbing and sound-insulating material disclosed in the application comprises sound-insulating layers, sound-absorbing layers and sound-insulating layers connected in sequence. The raw materials of the sound-insulating layers comprise silicone rubber, modified thermoplastic elastomer, hydroxyl silicone oil, a compatibilizer and a crosslinking agent. The raw materials of the sound-absorbing layers comprise ceramsite, cement, a water reducing agent, plant fibers and water. The raw materials of the modified thermoplastic elastomer comprise acrylate rubber, montmorillonite, silicon carbide, MPTMS, butyl acrylate, an initiator and a vulcanizing agent. The preparation method of the sound-absorbing and sound-insulating material comprises the following steps: (1) preparing the sound-absorbing layers; (2) preparing the modified thermoplastic elastomer; (3) preparing the sound-insulating layers and pressing the sound-absorbing layers and the sound-insulating layers to obtain the sound-absorbing and sound-insulating material. The sound-absorbing and sound-insulating material prepared by the application has good sound-absorbing and sound-insulating effects and can be widely applied to various occasions.