Wall building acoustic micro-diffusion structure

Abstract

The utility model relates to an acoustic micro-diffusion structure of a wall building, which comprises a plurality of independent micro-diffusers, and the sound energy reflection condition of the acoustic micro-diffusion structure of the wall building can be flexibly adjusted by adjusting the sectional dimensions of the independent micro-diffusers and the spacing of the independent micro-diffusers. According to the acoustic micro-diffusion structure of the wall building, the sound diffusion effect of a smooth surface is improved, the sound reflection direction of sound energy incident to the base wall is changed by arranging the independent micro-diffusers with different depths and widths, the micro-diffusion effect is achieved, and the sound diffusion effect is improved. Meanwhile, the problem that attractiveness is affected by uneven wall plastering (especially an arc-shaped wall) is solved, the construction mode is simple, construction materials are common, on-site machining is convenient and fast, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of building acoustics, in particular to a wall building acoustic micro-diffusion structure. Background Art

[0002] There are currently two main ways to deal with architectural acoustic micro-diffusion. Method 1: Finished micro-diffusion, the material is mostly solid wood or wooden flame-retardant board; GRG (glass fiber reinforced gypsum) can also be customized according to the design drawings. The former material has a maximum combustion performance of B1 level, and it is difficult to use in places with high fire protection requirements. If it is diffused for a specific frequency, special customization is required, and the latter is more expensive. Method 2: Metal materials are used, which are simple to process and meet fire protection requirements, but their thickness is generally only 1~2mm, which is easy to cause low-frequency resonance absorption and change the reverberation time frequency characteristics of the hall.

[0003] Therefore, it is necessary to design a solution that takes into account both cost and architectural acoustic micro-diffusion performance. Utility Model Content

[0004] Based on the above description, the utility model provides a wall architectural acoustic micro-diffusion structure, which solves the problem of directional reflection on smooth walls by freely combining a number of independent micro-diffusion structures on the wall, and has low cost and good micro-diffusion performance.

[0005] The utility model solves the above-mentioned technical problem with the following technical solution: a wall architectural acoustic micro-diffusion structure, comprising a plurality of mutually independent and spaced micro-diffusers arranged on the wall, the micro-diffusers comprising a metal box body, a sound-absorbing material and a base material, the metal box body being fixedly mounted on the wall, the sound-absorbing material being densely filled in the metal box body, and the base material covering the outer surface of the metal box body.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the metal box body includes a U-shaped groove base and a U-shaped groove cover plate, the bottom end of the groove of the U-shaped groove base is fixedly installed on the wall, the groove end of the U-shaped groove cover plate is plugged and spliced ​​with the groove end of the U-shaped groove base to form an enclosed accommodating space, the base material covers the outer surface of the metal box body and is fixedly connected to the metal box body, and the sound-absorbing material densely fills the accommodating space.

[0008] Furthermore, the filling density of the sound absorbing material is ≥100kg / m³.

[0009] Furthermore, the sound absorbing material is rock wool.

[0010] Furthermore, the material thickness of the metal box body is not less than 1 mm.

[0011] Furthermore, the base material includes a front base plate and a side base plate, the front base plate is adhered to the side of the metal box body facing away from the wall, the side base plate is arranged perpendicular to the front base plate, the side base plate covers each side of the metal box body that is perpendicular to the wall, the junction between the side base plate and the front base plate is tightly fitted, and the side base plate and the front base plate are respectively fixedly connected to the metal box body.

[0012] Furthermore, the base material includes a multi-layer side base board and a multi-layer front base board.

[0013] Furthermore, the base material is gypsum board.

[0014] Furthermore, the cross-sectional width of the micro diffuser ranges from 60 to 120 mm, and the depth of the micro diffuser relative to the wall ranges from 60 to 120 mm.

[0015] Furthermore, the distance between adjacent micro diffusers ranges from 60 to 120 mm.

[0016] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects: a wall architectural acoustic micro-diffusion structure, comprising a plurality of micro-diffusers that are independent of each other and spaced apart on the wall, the micro-diffusers comprising a metal box body, a sound-absorbing material and a base material, the metal box body being fixedly mounted on the wall, the sound-absorbing material being densely filled in the metal box body, and the base material covering the outer surface of the metal box body.

[0017] The utility model provides a wall architectural acoustic micro-diffusion structure, which can change the direction of sound reflection by combining different cross-sectional dimensions (such as length, width), depth, density and spacing of a plurality of independent micro-diffusers, thereby achieving the effect of sound energy diffusion, solving the problem of directional reflection on smooth walls, and improving the unevenness of the sound field in halls with sound quality requirements; and the utility model has a simple construction method, common constituent materials, convenient on-site processing and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a single micro-diffuser structure provided in an embodiment of the utility model;

[0019] Figure 2 A schematic structural diagram of a combination of several micro-diffusers provided in an embodiment of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 11. U-shaped groove base, 12. U-shaped groove cover plate, 211. Inner side base plate, 221. Outer side base plate, 212. Inner front base plate, 222. Outer front base plate, 3. Sound absorbing material, 4. Wall, 5. Expansion bolts, 6. Self-tapping screws. DETAILED DESCRIPTION

[0022] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0024] It will be appreciated that spatial relationship terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, the element or feature described as "under other elements" or "under it" or "under it" will be oriented as "on" the other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0025] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0026] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0027] like Figure 1 As shown in Figure 1, a schematic diagram of the cross-sectional structure of a single micro-diffuser is shown. Figure 2 As shown, it shows a schematic diagram of a wall architectural acoustic micro-diffusion structure of an embodiment of the utility model in which several micro-diffusers with different size parameters cooperate with each other.

[0028] Combination Figure 1 and Figure 2 As shown, this embodiment provides a wall architectural acoustic micro-diffusion structure, including a plurality of micro-diffusers that are independent of each other and spaced apart and arranged on the wall 4, and the cross-sectional dimensions (including length or width dimensions, in this embodiment, Figure 2 The width a shown is used as an example), the depth relative to the wall 4 can be set individually according to the required sound diffusion effect, and the spacing between adjacent micro diffusers can also be set in whole or in part according to the required sound diffusion effect. A single micro diffuser includes a metal box body, a sound absorbing material 3 and a base material, the metal box body is fixedly mounted on the wall 4, the sound absorbing material 3 is densely filled in the metal box body, and the base material covers the outer surface of the metal box body.

[0029] It can be understood that the wall building acoustic micro-diffusion structure provided in this embodiment includes a plurality of independent micro-diffusers, and the cross-sectional dimensions of each independent micro-diffuser and the spacing between independent micro-diffusers can be adaptively set according to the wall building environment. The base material can be made of flame-retardant or non-combustible materials to ensure that the independent micro-diffusers on the wall have a higher combustion performance level, for example, the combustion performance level of the finished product of the acoustic micro-diffusion structure can reach Class A. In a single independent micro-diffuser, the base material first reflects the sound energy, and the unreflected sound energy is further reflected by the metal box body to ensure that the micro-diffuser has excellent sound diffusion efficiency. The sound-absorbing material 3 in the metal box body is densely filled to improve the problem of low-frequency resonance absorption of the metal box body. The wall building acoustic micro-diffusion structure proposed by the utility model realizes the improvement of the sound diffusion effect of the smooth surface, and changes the direction of sound reflection of the sound energy incident on the base wall by setting independent micro-diffusion structures of different depths and widths, so as to achieve a micro-diffusion effect, and at the same time weaken the problem of uneven wall plastering (especially curved walls) affecting the aesthetics. When it is applied to the wall, it is easy to process on site, and the size of each individual micro diffuser can be adjusted according to the on-site conditions. It is not limited by the size of customized products, and can diffuse specific frequencies or full frequencies. It has a wide range of applications and stronger applicability. The wall architectural acoustic micro diffusion structure of the utility model has a simple construction method, common constituent materials, convenient on-site processing and low cost, and has the value of promotion.

[0030] Based on the above technical solution, this embodiment can also be improved as follows.

[0031] In one possible embodiment, the metal box body includes a U-shaped groove base 11 and a U-shaped groove cover plate 12, the bottom end of the groove of the U-shaped groove base 11 is fixedly installed on the wall 4 by an expansion bolt 5, the notch end of the U-shaped groove cover plate 12 is cross-arranged with the notch end of the U-shaped groove base 11 and plugged and spliced ​​to form an enclosed accommodating space, the base material covers the outer surface of the metal box body and is fixedly connected to the metal box body, and the sound-absorbing material 3 densely fills the accommodating space.

[0032] It can be understood that both the U-shaped groove base 11 and the U-shaped groove cover 12 have a groove bottom end and an open end, the groove bottom end of the U-shaped groove base 11 is used to connect with the wall 4, and the groove bottom end of the U-shaped groove cover 12 serves as the front of the metal box body and is arranged on the metal box body away from the groove bottom end of the U-shaped groove base 11. The groove width of the U-shaped groove cover 12 is preferably slightly larger than the groove width of the U-shaped groove base 11, and its width should be adjusted accordingly according to the design width of the independent micro-diffusion structure. When the U-groove cover 12 is installed on the U-groove base 11, the open end of the U-groove base 11 is arranged opposite to the open end of the U-groove cover 12, and the open ends of the U-groove base 11 and the U-groove cover 12 are relatively deflected 90 degrees and then plugged and spliced. Since the U-groove base 11 has three planes and the U-groove cover 12 has three planes, after the U-groove base 11 and the U-groove cover 12 are docked, the metal box body formed is a rectangular column or an approximate rectangular column, and the two side surfaces of the U-groove base 11 and the two side surfaces of the U-groove cover 12 together constitute the four side planes of the metal box body, and the groove bottom end of the U-groove cover 12 and the groove bottom end of the U-groove base 11 serve as the top and bottom surfaces of the metal box body respectively, wherein the top and bottom surfaces of the metal box body are welded with steel plates and enclosed with the four side planes to form a closed accommodating space inside the metal box body. During normal operation, the base material performs the first round of acoustic reflection on the sound energy, and the metal box body performs the second round of acoustic reflection on the sound energy. The two rounds of acoustic reflection ensure the sound diffusion effect of the micro diffuser. The sound absorbing material 3 densely filled in the metal box body prevents the metal box body from generating low-frequency resonance and reduces the absorption of low-frequency resonance.

[0033] As a preferred embodiment, the filling density of the sound absorbing material 3 is ≥100kg / m³. The filling of the sound absorbing material 3 is as dense as possible, which can improve the problem of low-frequency resonance absorption of the metal box. As a preferred embodiment, the sound absorbing material 3 can be made of rock wool. The combustion performance grade of rock wool is A, which solves the problem that the combustion performance grade of the finished acoustic micro diffuser is difficult to reach A.

[0034] In one possible implementation, in order to reduce the low-frequency resonance of the metal box body, the material thickness of the metal box body may be set to be not less than 1 mm. Increasing the metal material density of the metal box body may also improve the problem of its low-frequency resonance. The metal box body may be made of a variety of metal materials, such as copper, iron, aluminum, etc. In order to reduce costs and reduce the difficulty of obtaining materials, the material of the metal box body may preferably be steel, such as carbon steel.

[0035] In one possible implementation, Figure 1 As shown, the base material includes a plurality of front base panels (for example, an inner front base panel 212 and an outer front base panel 222) and a plurality of side base panels (for example, an inner side base panel 211 and an outer side base panel 221). Each layer of the front base panel and the side base panel forms a sealed base material layer. For example, the inner front base panel 212 and the inner side base panel 211 form a sealed base material layer, and the outer front base panel 222 and the outer side base panel 221 form a sealed base material layer. The plurality of base materials are stacked and nested with the metal box body as the center to form a plurality of sound reflection layers, which can improve the sound diffusion efficiency. The inner layer front base plate 212 and the outer layer front base plate 222 are attached to the side of the metal box body away from the wall 4 (that is, the side of the groove bottom end of the U-shaped groove cover plate 12), and the inner layer side base plate 211 and the outer layer side base plate 221 are arranged perpendicular to the inner layer front base plate 212 and the outer layer front base plate 222. The inner layer side base plate 211 and the outer layer side base plate 221 surround and cover the sides of the vertical wall 4 on the metal box body, and the inner layer side base plate 211 and the outer layer side base plate 221 are connected to the inner layer The junction between the front base panel 212 and the outer front base panel 222 is sealed and flatly fitted to ensure that the joint is flatly fitted with the board surface, and the inner side base panel 211 and the outer side base panel 221 and the inner front base panel 212 and the outer front base panel 222 are respectively fixedly connected to the metal box body, for example, the inner side base panel 211 and the outer side base panel 221 and / or the inner front base panel 212 and the outer front base panel 222 are connected to the metal box body by self-tapping screws 6.

[0036] As a preferred solution, the base material can be gypsum board or non-combustible material with an overall surface density of ≥20kg / ㎡. First, gypsum board and non-combustible materials have good flame retardant properties, which can improve the overall fire protection level of the device; second, they have better sound diffusion performance, relatively soft sound reflection, and good sound quality.

[0037] In one possible implementation, Figure 1 and Figure 2As shown, in order to obtain a better sound reflection effect, the cross-sectional width dimension a of the micro diffuser ranges from 60 to 120 mm, the depth dimension b of the micro diffuser relative to the wall 4 ranges from 60 to 120 mm, and the spacing c between adjacent micro diffusers ranges from 60 to 120 mm.

[0038] The utility model provides a method for installing a wall architectural acoustic micro-diffusion structure: first, an expansion bolt 5 is used to fix a steel U-shaped groove base 11 on the wall, a dense sound-absorbing material 3, such as rock wool, is filled in the steel U-shaped groove base 11, a steel U-shaped groove cover plate 12 is covered on the steel U-shaped groove base 11, and a steel U-shaped groove box body is formed by plugging and splicing the steel U-shaped groove cover plate 12 and the steel U-shaped groove base 11. Self-tapping screws 6 are used to fix the inner front base plate 212 and the outer front base plate 222 and the inner side base plate 211 and the outer side base plate 221 on the steel U-shaped groove box body, and the surfaces of the inner front base plate 212 and the outer front base plate 222 and the inner side base plate 211 and the outer side base plate 221 can be painted, pasted with wallpaper, wall cloth or other finishing materials according to decoration needs.

[0039] The utility model wall building acoustic micro-diffusion structure changes the direction of sound reflection by changing the width and depth of the micro-diffuser, thereby achieving the effect of sound energy diffusion, and ensuring that the hall with sound quality requirements meets the sound field unevenness requirements. By adopting gypsum board and steel U-shaped groove box body, the problem that the combustion performance level of the finished diffuser is difficult to reach Class A is solved. A finished acoustic micro-diffusion structure is formed by arbitrarily assembling a number of independent micro-diffusers. The on-site processing is convenient, and the scale of the micro-diffusion structure can be adjusted according to the on-site conditions. It is not limited by the size of customized products, and can diffuse at specific frequencies or full frequencies. It has a wide range of applications. Multi-layer gypsum board is used as the surface material and rock wool is filled in the cavity of the groove box body to improve the problem of low-frequency resonance absorption. The utility model has a simple construction method, ordinary constituent materials, convenient on-site processing and low cost.

[0040] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the invention and implement it accordingly, and they cannot be used to limit the protection scope of the invention. Any equivalent changes or modifications made according to the spirit of the invention should be included in the protection scope of the invention.

Claims

1. A wall architectural acoustic micro-diffusion structure, characterized in that: The invention comprises a plurality of micro diffusers which are independent of each other and arranged at intervals on a wall surface (4), wherein the micro diffusers comprise a metal box body, a sound absorbing material (3) and a base material, wherein the metal box body is fixedly mounted on the wall surface (4), the sound absorbing material (3) is densely filled in the metal box body, and the base material covers the outer surface of the metal box body.

2. A wall architectural acoustic micro-diffusion structure according to claim 1, characterized in that: The metal box body comprises a U-shaped groove base (11) and a U-shaped groove cover plate (12); the groove bottom end of the U-shaped groove base (11) is fixedly mounted on the wall surface (4); the groove end of the U-shaped groove cover plate (12) is plugged and spliced ​​with the groove end of the U-shaped groove base (11) to form a closed accommodating space; the base material covers the outer surface of the metal box body and is fixedly connected to the metal box body; and the sound absorbing material (3) densely fills the accommodating space.

3. A wall architectural acoustic micro-diffusion structure according to claim 2, characterized in that: The filling density of the sound absorbing material (3) is ≥100 kg / m³.

4. A wall architectural acoustic micro-diffusion structure according to claim 3, characterized in that: The sound absorbing material (3) is rock wool.

5. The wall architectural acoustic micro-diffusion structure according to claim 1, characterized in that: The material thickness of the metal box body is not less than 1 mm.

6. The wall architectural acoustic micro-diffusion structure according to claim 1, characterized in that: The base material comprises a front base plate (212) and a side base plate (211); the front base plate (212) is attached to a side of the metal box body that is away from the wall surface (4); the side base plate (211) is arranged perpendicular to the front base plate (212); the side base plate (211) covers each side surface of the metal box body that is perpendicular to the wall surface (4); the junction between the side base plate (211) and the front base plate (212) is tightly attached; and the side base plate (211) and the front base plate (212) are respectively fixedly connected to the metal box body.

7. The wall architectural acoustic micro-diffusion structure according to claim 6, characterized in that: The base material includes a multi-layer side base plate and a multi-layer front base plate.

8. A wall architectural acoustic micro-diffusion structure according to claim 6 or 7, characterized in that: The base material is gypsum board.

9. The wall architectural acoustic micro-diffusion structure according to claim 1, characterized in that: The cross-sectional width of the micro diffuser is in the range of 60 to 120 mm, and the depth of the micro diffuser relative to the wall surface (4) is in the range of 60 to 120 mm.

10. The wall architectural acoustic micro-diffusion structure according to claim 1, characterized in that: The distance between adjacent micro diffusers ranges from 60 to 120 mm.

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