145 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 relates to the related technical field of building sound insulation materials, in particular to a building heat preservation and sound insulation wall which comprises a building wall body, a vertical main keel, a transverse auxiliary keel and a sound insulation board, the vertical main keel is fixed to the building wall body, and the transverse auxiliary keel is fixedly connected to the vertical main keel; a plurality of transverse auxiliary keels are arranged between the adjacent vertical main keels at equal intervals, the sound insulation plate is positioned and fixed on the transverse auxiliary keels, the sound insulation plate comprises a bottom plate layer, a sound insulation layer and a panel layer, the inner side face of the sound insulation layer is fixedly connected with the bottom plate layer, and the outer side face of the sound insulation layer is fixedly connected with the panel layer; the building heat preservation and sound insulation wall is formed by combining the building wall body, the vertical main keels, the transverse auxiliary keels and the sound insulation plate, the sound insulation plate is formed by combining the bottom plate layer, the sound insulation layer and the face plate layer, the sound insulation groove is formed in the sound insulation layer, and the sound absorption cotton is filled in the sound insulation groove, so that the overall strength of the sound insulation plate is guaranteed, and meanwhile the sound insulation effect is improved. And the overall sound insulation and heat preservation effects of the sound insulation plate can be fully ensured.

The invention relates to the field of sound insulation materials, in particular to an environment-friendly automobile interior sound insulation material and a preparation method thereof. An environment-friendly automobile interior sound insulation material comprises a mass layer and a sound absorption layer, the mass layer is made of PET and PP composite non-woven fabric, and the weight of the mass layer is 1500-1700 g / m; the sound absorption layer is made of PET non-woven fabric, and the weight of the sound absorption layer is 400-500 g / m. The mass layer is made of PET and PP composite non-woven fabric, the weight reaches 1500-1700 g / m, and by means of the high surface density and composite structure, transmission of low and medium frequency noise of an engine, a road surface and the like can be effectively blocked; the sound absorption layer is a PET non-woven fabric of 400-500 g / m, the porous structure of the sound absorption layer can absorb medium-high frequency noise, and full-band sound insulation is achieved through combination of the quality layer and the sound absorption layer.

The invention discloses a sound insulation adhesive film and a preparation method and application thereof, and relates to the field of sound insulation materials. The sound insulation adhesive film comprises the following components in parts by weight: 90-100 parts of matrix resin; 23-30 parts of a plasticizer; 5-10 parts of a grafting agent; the grafting agent is selected from isocyanate uracil dimer; the mass content of hydroxyl in the matrix resin is 18-21% in percentage by weight, so that the vibration energy absorption capacity of the sound insulation adhesive film can be remarkably improved, the sound insulation effect is improved, and the impact resistance of the sound insulation adhesive film is 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.

A fan acoustic casing system may include one or more casing sidewalls configured to at least partially define a cavity configured to receive the one or more fans. A casing sidewall may be configured to rotate between an open position or a closed position via a rotation mechanism, where one or more surfaces of the one or more casing sidewalls may be coupled to one or more acoustic insulation pads formed of one or more acoustic insulation materials to reduce vibrational noise. The system may include one or more sidewall fastening members configured to couple a casing sidewall to an additional casing sidewall. The system may include a mounting assembly including one or more mounting members configured to removably couple the fan casing assembly to a panel of a cabinet.

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 present invention relates to the field of building construction technology, specifically to a decorative panel for building decoration, comprising a base plate, a surface of the base plate provided with a sound insulation component, and a surface of the base plate provided with an assembly component; the beneficial effect is: the decorative panel for building decoration and the cutting equipment proposed by the present invention can facilitate workers to install multiple decorative panels with each other through the mutual cooperation between the base plate, protrusions, grooves, sound insulation sponge layer, first glue, fireproof layer, second glue, surface protection layer and other structures, so that they are pieced together into a whole, and can be in a parallel and stable state, reducing the probability of deviation between adjacent panels during installation, and at the same time can facilitate workers to carry out installation work without the need for workers to carefully carry out docking between the two, and at the same time use sound insulation materials to improve the sound insulation effect during use, avoiding affecting the normal rest of neighbors.

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 invention provides an elevator car noise reduction structure which comprises an elevator car body, a movable door is movably installed on the outer side of the elevator car body, an upper clamping groove is formed in the inner side of the elevator car body, a lower clamping groove is formed in the inner side of the elevator car body, and a sound absorption assembly is arranged in the elevator car body. Sound insulation cotton is arranged in the elevator car body. According to the elevator car noise reduction structure, the multiple layers of composite structures are arranged, noise conducted by the car wall can be effectively blocked through combination of sound insulation materials of different materials and different characteristics, targeted absorption and reflection can be conducted, the overall noise reduction effect is improved, the multiple layers of sound insulation materials of the gradient density are designed, energy of low-frequency noise can be gradually weakened, and the noise reduction effect is improved. Meanwhile, when part of the structure needs to be replaced, only the corresponding modules need to be disassembled, the whole sound insulation structure does not need to be disassembled and replaced, the labor cost is reduced, the construction time is shortened, operation is easy and convenient, and the maintenance efficiency is improved.

The utility model discloses a full-automatic rotor sound-insulation discharging device which comprises a sound-insulation box internally provided with sound-insulation materials. The vibration disc is fixedly connected to the interior of the sound insulation box; the supporting table is arranged on one side of the sound insulation box, a discharging groove is fixedly connected to the top of the supporting table, a pushing pipe is fixedly connected to the end of the discharging groove, a discharging push rod used for pushing materials is arranged in the pushing pipe in a reciprocating sliding mode, and a driving part is arranged at the end of the discharging push rod; the vibration plate has the advantages that the sound insulation cotton can effectively absorb and disperse vibration of sound, so that noise generated when the vibration plate works is remarkably reduced, and noise pollution is reduced; the device enables the rotors to be automatically arranged and fed into the slide way through vibration of the vibration disc and then slide into the material pushing pipe. In the material pushing pipe, the material discharging push rod reciprocates under the cooperation of the driving motor, the cam, the rotating disc and the spring, the rotors are pushed into the material discharging groove one by one, and the efficient and automatic material discharging process is achieved.