CN208815699U

CN208815699U - A building sound insulation structure

Info

Publication number: CN208815699U
Application number: CN201821275420.0U
Authority: CN
Inventors: 赵瑞艳
Original assignee: Xianyang Normal University
Current assignee: Xianyang Normal University
Priority date: 2018-08-08
Filing date: 2018-08-08
Publication date: 2019-05-03
Anticipated expiration: 2028-08-08

Abstract

The utility model discloses a kind of building sound-insulating structures, including abatvoix, nonwoven sound-absorbing cloth, glass fibre acoustical cotton, heat-insulated masking foil and the plasterboard successively to fit together, speaker hole is offered on the abatvoix, the bottom hole of the speaker hole offers the through-hole communicated with the speaker hole, and the first acoustic damping mesh and the second acoustic damping mesh are fixedly installed in the through-hole.The principle that the sound-insulating structure is reversely amplified using loudspeaker by the flaring direction of speaker hole towards sound source, and then reversely reduces the propagation of sound, while acoustic damping mesh is further arranged in the bottom hole of speaker hole, further consumes sound wave using the mesh of acoustic damping mesh；Furthermore nonwoven sound-absorbing cloth, glass fibre acoustical cotton and heat-insulated masking foil also further consume sound wave, are weakened noise upstairs, and then reduce to the noise generated downstairs.

Description

A kind of building sound-insulating structure

Technical field

The utility model relates to technical field of buildings, specially a kind of building sound-insulating structure.

Background technique

With the continuous improvement of society and living standards, various electronic products emerge one after another, and people build house class Sound isolation requirement is also higher and higher.Currently, existing construction wall structure is main still by concrete wall, bonding mortar and block Block is constituted, and can not meet the requirement of people's daily life in the processing of sound insulation, especially upstairs there is resident, from upstairs Noise is unable to get certain elimination.

Utility model content

For above-mentioned technical deficiency, the purpose of the utility model is to provide a kind of building sound-insulating structures, for day Card carries out sound insulation, reduces the noise that upstairs resident generates resident downstairs.

In order to solve the above technical problems, the utility model adopts the following technical solution:

The utility model provides a kind of building sound-insulating structure, including successively fit together abatvoix, nonwoven sound-absorbing cloth, Glass fibre acoustical cotton, heat-insulated masking foil and plasterboard offer several equally distributed speaker holes on the abatvoix, Two adjacent speaker holes are tangent, and the internal diameter of these speaker holes is gradually reduced along the direction close to the plasterboard, institute The bottom hole for stating speaker hole offers the through-hole communicated with the speaker hole, and first acoustic damping mesh is fixedly installed in the through-hole With second acoustic damping mesh, first acoustic damping mesh setting parallel with second acoustic damping mesh, first acoustic damping mesh and institute The mesh for stating the second acoustic damping mesh is square, the spacing of first acoustic damping mesh and second acoustic damping mesh 1mm~2mm it Between, the area of the mesh of first acoustic damping mesh is greater than the area of the mesh of second acoustic damping mesh, second acoustic damping mesh position Between the nonwoven acoustical cotton and first acoustic damping mesh.

Preferably, the depth of the through-hole is not more than 4mm.

Preferably, the thickness of the glass fibre acoustical cotton is not less than 15mm.

The utility model has the beneficial effects that: the principle that the sound-insulating structure is reversely amplified using loudspeaker, by speaker hole Being flared direction reduces the propagation of sound towards sound source, and then reversely, while acoustic damping mesh is further arranged in the bottom hole of speaker hole, benefit Sound wave is further consumed with the mesh of acoustic damping mesh；Furthermore nonwoven sound-absorbing cloth, glass fibre acoustical cotton and heat-insulated masking foil Further consumption sound wave, is weakened noise upstairs, and then reduce to the noise generated downstairs.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is that (the second acoustic damping mesh is not for a kind of structural schematic diagram for building sound-insulating structure provided by the embodiment of the utility model It draws)；

Fig. 2 be Fig. 1 in A-A to cross-sectional view；

Fig. 3 is the explosive view of Fig. 2；

Fig. 4 is the structural schematic diagram of abatvoix (the second acoustic damping mesh is not drawn).

Description of symbols: 1- abatvoix, 11- speaker hole, the first acoustic damping mesh of 12-, the second acoustic damping mesh of 13-, 2- nonwoven are inhaled Sound cloth, 3- glass fibre acoustical cotton, the heat-insulated masking foil of 4-, 5- plasterboard.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figures 1 to 4, a kind of building sound-insulating structure, including abatvoix 1, the nonwoven sound-absorbing successively to fit together Cloth 2, glass fibre acoustical cotton 3, heat-insulated masking foil 4 and plasterboard 5 offer several on the abatvoix 1 and are uniformly distributed Speaker hole 11, two adjacent speaker holes 11 are tangent, the internal diameters of these speaker holes 11 is along close to the plasterboard 5 Direction is gradually reduced, and the bottom hole of the speaker hole 11 offers the through-hole communicated with the speaker hole 11, is fixed in the through-hole It is provided with first acoustic damping mesh 12 and second acoustic damping mesh 13, first acoustic damping mesh 12 and 13 phase of the second acoustic damping mesh It is arranged in parallel, the mesh of first acoustic damping mesh 12 and second acoustic damping mesh 13 is square, first acoustic damping mesh 12 For spacing with second acoustic damping mesh 13 between 1mm~2mm, the area of the mesh of first acoustic damping mesh 12 is greater than described the The area of the mesh of two acoustic damping meshes 13, second acoustic damping mesh 13 are located at the nonwoven acoustical cotton 2 and first acoustic damping mesh 12 Between, using the first acoustic damping mesh 12 mesh area to the second acoustic damping mesh 13 mesh area reduction, and then to sound wave generate Consumption gradually.

Further, the depth of the through-hole is not more than 4mm.

Further, the thickness of the glass fibre acoustical cotton 3 is not less than 15mm.

Wherein nonwoven sound-absorbing cloth 2, glass fibre acoustical cotton 3, heat-insulated masking foil 4 are existing product, and there is sale in market, The application does not do excessive narration, it is further noted that understanding structure to show, what the attached drawing in the application was shown is A portion of the sound-insulating structure.

In use, 5 plate of gypsum is constructed according to conventional form of construction work, it is installed in roof, 11 direction of speaker hole Roof reduces the propagation of sound using speaker hole 11.

In noise reduction field, wrong understanding first is that think shaggy material have sound absorbing performance, actually this is not so, such as Stucco, surface relief stone just substantially do not have acoustical absorptivity.Wrong understanding second is that think that material internal has a large amount of The material of hole, such as polyphenyl, polyethylene, closed-cell polyurethane, have good sound absorbing performance, in fact, these materials due to Inner void does not have connectivity, and sound wave cannot go deep into material internal vibration friction, therefore acoustic absorptivity very little；The utility model is anti- To the principle to amplify using loudspeaker, by the flaring direction of speaker hole towards sound source, and then the propagation of sound reversely is reduced, and be arranged Through-hole so that speaker hole is communicated with nonwoven sound-absorbing cloth, glass fibre acoustical cotton, and then realizes the connectivity of the inside configuration, Sound wave is goed deep into nonwoven sound-absorbing cloth and glass fibre acoustical cotton by speaker hole, and then reduction sound wave gradually, most The sound wave being closely lowered is carrying out reflection a part, while heat reflection one that sound wave loss is generated by heat-insulated masking foil Point, it is final to reduce upstairs to the noise generated downstairs.

Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.

Claims

1. A sound-insulating structure for buildings, characterized in that it comprises a sound-absorbing panel (1), a non-woven sound-absorbing cloth (2), a glass fiber sound-absorbing cotton (3), a heat-insulating tin foil (4) and a gypsum successively laminated together. Plate (5), the sound-absorbing plate (1) is provided with a number of evenly distributed horn holes (11), two adjacent horn holes (11) are tangent, and the inner diameter of these horn holes (11) is along the It gradually decreases in the direction close to the gypsum board (5), the hole bottom of the horn hole (11) is provided with a through hole communicating with the horn hole (11), and a first first hole is fixedly arranged in the through hole. A sound-absorbing net (12) and a second sound-absorbing net (13), the first sound-absorbing net (12) and the second sound-absorbing net (13) are arranged in parallel, the first sound-absorbing net (12) and the The meshes of the second sound-absorbing net (13) are all square, the distance between the first sound-absorbing net (12) and the second sound-absorbing net (13) is between 1 mm and 2 mm, and the first sound-absorbing net (12) is between 1 mm and 2 mm. The mesh area of 12) is larger than the mesh area of the second sound-absorbing net (13), and the second sound-absorbing net (13) is located between the non-woven sound-absorbing cloth (2) and the first sound-absorbing net (13). 12) between.

2 . The sound insulation structure of a building according to claim 1 , wherein the depth of the through hole is not greater than 4 mm. 3 .

3 . The sound insulation structure of a building according to claim 1 , wherein the thickness of the glass fiber sound-absorbing cotton ( 3 ) is not less than 15 mm. 4 .