CN220598967U - Decorative aluminum plate sound-absorbing wall surface structure - Google Patents
Decorative aluminum plate sound-absorbing wall surface structure Download PDFInfo
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- CN220598967U CN220598967U CN202322210428.6U CN202322210428U CN220598967U CN 220598967 U CN220598967 U CN 220598967U CN 202322210428 U CN202322210428 U CN 202322210428U CN 220598967 U CN220598967 U CN 220598967U
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- keel frame
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 70
- 229920000742 Cotton Polymers 0.000 claims abstract description 40
- 239000003365 glass fiber Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 9
- 230000002209 hydrophobic effect Effects 0.000 claims description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 7
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 7
- 239000008397 galvanized steel Substances 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 9
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
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- 239000002994 raw material Substances 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
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- 230000007797 corrosion Effects 0.000 description 2
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
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- 239000004411 aluminium Substances 0.000 description 1
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
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- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Building Environments (AREA)
Abstract
The utility model provides a sound-absorbing wall surface structure of a decorative aluminum plate, which comprises a fixing unit and a sound-absorbing unit; the fixing unit comprises a keel frame and a fixing piece, wherein the keel frame comprises a plurality of transverse keels and a plurality of vertical keels which are vertically connected with each other, and the fixing piece is used for fixedly connecting the keel frame to a building wallboard; the sound absorbing unit comprises sound absorbing cotton and an aluminum honeycomb plate, the sound absorbing cotton is arranged in a space between a transverse keel and a vertical keel of the keel frame, and the aluminum honeycomb plate is arranged on one side, opposite to the building wallboard, of the keel frame. The sound-absorbing plate has the advantages of light weight, stability, good sound absorption, fire resistance, moisture resistance, attractive appearance, practicability and the like.
Description
Technical Field
The utility model relates to a wall surface, in particular to a sound-absorbing wall surface structure of a decorative aluminum plate.
Background
With the continuous development of the building industry, the requirements of people on living spaces are also increasing. Apart from the pursuit of space comfort and privacy, quietness is an important indicator. In the past, decoration and decoration often only perform acoustic treatment on public building spaces or special spaces such as movie theaters, multifunctional halls, conference rooms and the like, but the situation of performing sound insulation or noise elimination treatment on common rooms is relatively rare. In addition, the two processing modes are also different, and the acoustic processing of the former is mainly used for meeting the reverberation time in the hall so as to achieve good sound effect; the latter aims to isolate external noise and avoid the influence of noise generated by the noise on adjacent rooms.
The conventional sound insulation wall is often made of heavy materials such as concrete or bricks, the process comprises a plurality of working procedures such as grouting, brickwork, plastering and the like, the construction and installation difficulties are large, the density is high, the weight is large, and particularly in the upper layer of the construction or in the places needing frequent construction and dismantling, the weight of the conventional sound insulation wall can bring a large load to the construction structure. Meanwhile, in order to improve the sound absorption effect of the sound insulation wall, the existing structure is often directly attached with sound absorption materials on the wall body through fasteners, the structure is not attractive, the sound absorption effect is insufficient, the weight of the wall body can be further increased, and the structure is difficult to adapt to scenes with high requirements on decoration. In addition, the traditional wall materials often have no waterproof and fireproof functions, which limits the application range of the conventional sound insulation wall to a certain extent. In some places with high requirements on fire and water resistance, such as kitchens, bathrooms, parking lots and the like, conventional sound insulation walls cannot provide sufficient protection.
Therefore, there is a need to develop a wall structure that is light in weight and has good sound absorbing and fire preventing properties.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a decorative aluminum plate sound-absorbing wall surface structure which is light and stable, good in sound absorption, fireproof, dampproof, attractive and practical.
In order to achieve the above object, the present utility model provides a sound-absorbing wall surface structure of decorative aluminum plate, which comprises a fixing unit 1 and a sound-absorbing unit 2; the fixing unit 1 comprises a keel frame 11 and a fixing piece 12, wherein the keel frame 11 comprises a plurality of transverse keels and a plurality of vertical keels which are vertically connected with each other, and the fixing piece 12 fixedly connects the keel frame 11 to a building wallboard; the sound absorbing unit 2 comprises sound absorbing cotton 21 and an aluminum honeycomb plate 22, wherein the sound absorbing cotton 21 is arranged in a space between a transverse keel and a vertical keel of the keel frame 11, and the aluminum honeycomb plate 22 is arranged on one side, back to a building wallboard, of the keel frame 11.
The transverse keels and the vertical keels are vertically connected with each other to form a keel frame comprising a plurality of blank spaces which are generally rectangular or square, and sound-absorbing cotton can be filled in the blank spaces. The sound-absorbing cotton is an artificial inorganic fiber, which is usually prepared by taking natural ores such as quartz sand, limestone, dolomite and the like as main raw materials, mixing with chemical raw materials such as sodium carbonate, borax and the like, melting, blowing and throwing the raw materials into flocculent fine fibers by means of external force, and enabling the fibers to be intersected in a three-dimensional way, intertwined with each other and form a plurality of fine gaps, thereby having the function of absorbing sound waves. The aluminum honeycomb plate is a composite plate with aluminum honeycomb as a core material and aluminum plates adhered to two sides. The aluminum honeycomb panel has the characteristics of light weight, small density, high specific strength, heat insulation, sound insulation, fire resistance, moisture resistance and the like, and the aluminum alloy has no radioactivity, can not volatilize harmful gases which are unfavorable for human health, and can be completely recycled.
According to the sound-absorbing wall structure of the decorative aluminum plate, steel wire meshes are arranged on two sides of the keel frame 11, and cover the side surfaces of the sound-absorbing cotton 21. The steel wire meshes are arranged on the two sides of the keel frame, so that the strength of the wall surface structure can be increased, and sound absorbing cotton can be fixed at a preset position to prevent the sound absorbing cotton from shifting or falling off.
The sound-absorbing wall surface structure of the decorative aluminum plate provided by the utility model is characterized in that the steel wire mesh is galvanized steel wire mesh. The galvanized steel wire mesh is generally produced by carrying out electric welding processing and forming on low-carbon steel wires through automatic equipment and then carrying out surface treatment by adopting a zinc dipping process, and has the advantages of firm structure, strong integrity and good corrosion resistance.
The sound-absorbing wall surface structure of the decorative aluminum plate provided by the utility model is characterized in that the surface of the sound-absorbing cotton 21 is coated with a dampproof flame-retardant layer.
The sound-absorbing wall surface structure of the decorative aluminum plate, provided by the utility model, comprises the sound-absorbing cotton 21, wherein the sound-absorbing cotton is glass fiber sound-absorbing cotton; the dampproof flame-retardant layer is hydrophobic glass fiber cloth. The glass fiber sound-absorbing cotton is also called as glass fiber sound-absorbing cotton, is an inorganic material, has a fluffy and staggered internal fiber structure, has a large number of tiny gaps, has good sound-absorbing property, and has the performance characteristics of heat preservation, fire prevention, heat insulation and the like. The hydrophobic glass fiber cloth is also called as hydrophobic glass fiber cloth and hydrophobic glass fiber cloth, is usually formed by processing and treating alkali-free glass fiber cloth serving as a base material and coating a high polymer material, has smooth surface, has hydrophobicity and fire resistance, and has good weather resistance and difficult aging.
The sound-absorbing wall surface structure of the decorative aluminum plate according to the present utility model, wherein the aluminum honeycomb panel 22 is an aluminum honeycomb perforated sound-absorbing panel. Aluminum honeycomb perforated sound absorbing panels generally refer to aluminum honeycomb sandwich structures formed by bonding a perforated panel to an aluminum honeycomb core with an adhesive.
The sound-absorbing wall surface structure of the decorative aluminum plate, provided by the utility model, has the perforation rate of not less than 20%; the outer side face of the aluminum honeycomb perforated sound absorbing plate is further provided with a heat transfer layer. The perforation ratio is generally referred to in the art as the ratio of the perforation area to the total area. The thermal transfer printing comprises a transfer printing film printing part and a transfer printing processing part, wherein the transfer printing film printing part adopts dot printing to print patterns on the surface of a film in advance, the transfer printing processing part transfers the patterns on the transfer printing film on the surface of a product through a thermal transfer printer, and the formed thermal transfer printing layer and the surface of the product are integrated.
The sound-absorbing wall structure of the decorative aluminum plate according to the present utility model, wherein the fixing member 12 comprises a bracket and a bolt, wherein the bracket has two wing plates, one of the wing plates is fixedly connected with the keel 11, and the other wing plate is fixed to the building wall plate by the bolt.
The sound-absorbing wall surface structure of the decorative aluminum plate provided by the utility model is characterized in that the upper end and the lower end of the vertical keel are respectively fixedly connected with a building top plate and a building bottom plate, and the transverse keel and the vertical keel are galvanized steel square tubes. Galvanized steel square tube is also called hot dip galvanized steel square tube, which is obtained by immersing the steel square tube after rust removal in molten zinc liquid at about 440-460 ℃ to adhere a zinc layer on the surface of the steel square tube, thereby obtaining anti-corrosion effect.
The sound-absorbing wall surface structure of the decorative aluminum plate provided by the utility model is characterized in that the corner connector is a galvanized corner connector, and the bolt is an expansion bolt.
Based on the technical scheme, the decorative aluminum plate sound-absorbing wall surface structure has the following beneficial effects:
1. the sound-absorbing wall surface structure of the decorative aluminum plate adopts the sound-absorbing cotton and the aluminum honeycomb plate, wherein the sound-absorbing cotton can enable sound waves incident on the surface of the sound-absorbing cotton to be reflected or enter the pores of the sound-absorbing cotton, and when the sound waves strike air and tiny fibers, the sound waves can vibrate and finally be converted into heat energy under the action of friction and viscous force. The sound-absorbing cotton can be glass fiber sound-absorbing cotton, has a large number of tiny air holes, is moderate in air flow resistance, has good sound-absorbing performance on sound, particularly middle-high frequency sound, and is a good material for sound absorption and noise reduction; the aluminum honeycomb panel has a plurality of hexagonal honeycomb structures which are connected with each other, can disperse pressure from all directions, can separate noise at all layers or all sections, can not generate movement and deflection in the use process, and can separate noise under the condition of reducing impact force. Through adopting aluminium honeycomb perforation abatvoix, it has the surface of constituteing by many perforation, not only can utilize the sealed cell separation of honeycomb to separate the air flow, cuts off the diffusion of sound wave, can also let sound wave get into after the perforation increase its scattering and refraction, promotes the sound absorbing effect, noise reduction to people's work and rest's interference. Therefore, the special structure of the utility model can effectively reduce noise pollution and provide a quiet and comfortable environment.
2. The sound-absorbing wall surface structure of the decorative aluminum plate can adopt square-through frameworks, other components are basically made of light materials, the sound-absorbing wall surface structure is lighter in weight compared with the traditional wall surface materials, the structural burden can be lightened, the construction cost is reduced, the square-through frameworks are stable, and good anti-seismic performance can be provided. Simultaneously, the dampproofing flame retardant coating not only can prevent moisture infiltration, is difficult for corroding or wet, avoids the moist and mould breeding of wall, can also effectively resist spreading of intensity of a fire, protects the safety of building and personnel to the security and the stability of this wall structure have been strengthened.
3. The main components of the sound-absorbing wall surface structure of the decorative aluminum plate can be prefabricated in a factory according to the required size and then fixedly installed on site. The quality and the accuracy of the structure can be improved by factory prefabrication, and the errors and the damages of site construction are reduced. The operation is quick and convenient, the construction difficulty is reduced, the installation efficiency is improved, and the project period can be effectively shortened. In addition, the aluminum honeycomb panel is adopted as an outer layer structure, has good durability and corrosion resistance, is easy to clean and maintain, is not easy to adsorb dust and dirt, and can keep clean and beautiful appearance for a long time. The surface of the aluminum honeycomb panel can be further provided with a heat transfer layer, and various colors and patterns can be displayed, so that the wall surface structure has rich design choices, and can meet the decoration styles and requirements of different places and individuals.
Drawings
Embodiments of the present utility model are described in detail below with reference to the attached drawing figures, wherein:
fig. 1 is a schematic sectional view showing a sound-absorbing wall surface structure of a decorative aluminum plate according to the present utility model;
reference numerals illustrate:
1. a fixing unit; 11. a keel frame; 12. a fixing member; 2. a sound absorbing unit; 21. sound absorbing cotton; 22. aluminum honeycomb panel.
Detailed Description
The utility model is further illustrated by the following specific examples, which are, however, to be understood only for the purpose of more detailed description and are not to be construed as limiting the utility model in any way. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art in specific cases.
An embodiment of the sound absorbing wall structure of the present utility model is described below with reference to fig. 1.
As shown in fig. 1, the sound-absorbing wall structure of the decorative aluminum plate includes a fixing unit 1 and a sound-absorbing unit 2.
The fixing unit 1 includes a keel frame 11 and a fixing piece 12. Wherein the keel frame 11 includes a plurality of transverse keels and a plurality of vertical keels, and the transverse keels and the vertical keels are vertically connected to each other to form a frame structure having a plurality of blank spaces. The transverse keels and the vertical keels may preferably be galvanized steel square tubes. In one embodiment, the fixing unit 1 further includes steel wire meshes provided at both sides of the keel frame 11, which can cover the sides of the sound absorbing cotton 21 to prevent the sound absorbing cotton 21 from being displaced or detached. The wire mesh may preferably be a galvanized wire mesh. In a preferred embodiment, the upper and lower ends of the vertical keel may be fixedly connected to the building roof and floor, respectively.
The fixing piece 12 fixedly connects the keel frame 11 to the building wallboard. In one embodiment, the fastener 12 may comprise a gusset and a bolt, wherein the gusset has two wings, one of which is fixedly connected to the keel frame 11 and the other of which is secured to the building panel by the bolt. In a preferred embodiment, galvanized corner fittings may be used as the corner fittings and expansion bolts may be used as the bolts.
The sound-absorbing unit 2 includes sound-absorbing cotton 21 and aluminum honeycomb panel 22. Wherein, inhale the sound cotton 21 and set up in the blank that forms between horizontal fossil fragments and vertical fossil fragments. In one embodiment, the surface of the sound absorbing cotton 21 may be coated with a moisture resistant flame retardant layer. In a preferred embodiment, the sound absorbing cotton 21 may be glass fiber sound absorbing cotton, and the moisture-proof flame retardant layer may be hydrophobic glass fiber cloth.
The aluminum honeycomb panel 22 is arranged on one side of the keel frame 11 facing away from the building wallboard and faces the direction of the indoor space. In one embodiment, the aluminum honeycomb panel 22 may preferably be an aluminum honeycomb perforated acoustic panel. In a preferred embodiment, the penetration rate of the aluminum honeycomb perforated sound absorbing panel may be not less than 20% to obtain the desired sound absorbing properties. In a more preferred embodiment, the outside face of the aluminum honeycomb perforated acoustic panel may also be provided with a heat transfer layer to reveal the desired color or pattern of design.
The main components of the sound-absorbing wall surface structure of the decorative aluminum plate can be prefabricated in batch in a factory. Those skilled in the art can select an appropriate production process and installation process according to the structure of the present utility model.
As an example, the manufacturing and installation method thereof may include the steps of:
1. and (5) prefabricating the assembly. The field is examined, and according to the decoration design scheme and the construction site requirement, the transverse keels, the vertical keels, the steel wire nets, the corner fittings, the sound absorbing cotton and the aluminum honeycomb plates with the required quantity and specification can be manufactured in factories according to the requirements. The hydrophobic glass fiber cloth can be coated on the surface of the sound-absorbing cotton in advance in a factory according to the design so as to be assembled into a plurality of sound-absorbing cotton bags. The aluminum honeycomb plate can be an aluminum honeycomb perforated sound absorbing plate with proper perforation rate, and a heat transfer layer can be arranged on the surface of the aluminum honeycomb plate so as to display the required pattern or color.
2. And (5) field installation. And transporting the prefabricated assembly to a construction site. According to the position determined by design, a plurality of vertical keels are fixedly connected between a building top plate and a building bottom plate, then a plurality of transverse keels are vertically connected and fixed with the vertical keels to form a keel frame, and fixing pieces such as angle codes, expansion bolts and the like are used for fixedly connecting the keel frame with building wallboards. The sound-absorbing cotton or the sound-absorbing cotton bag coated with the hydrophobic glass fiber cloth is filled in the keel frame, then steel wire meshes are paved on two sides of the keel frame, and finally the aluminum honeycomb perforated sound-absorbing plate is installed and fixed on one side of the keel frame, which is away from the building wallboard, so that the decorative aluminum plate sound-absorbing wall surface structure is obtained.
Although the present utility model has been described to a certain extent, it is apparent that appropriate changes may be made in the individual conditions without departing from the spirit and scope of the utility model. It is understood that the above-described embodiments are exemplary and non-limiting, the scope of the utility model being defined by the appended claims rather than the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Furthermore, any reference signs in the claims shall not be construed as limiting the claim concerned.
Claims (10)
1. The sound-absorbing wall surface structure of the decorative aluminum plate is characterized by comprising a fixing unit (1) and a sound-absorbing unit (2); the fixing unit (1) comprises a keel frame (11) and a fixing piece (12), wherein the keel frame (11) comprises a plurality of transverse keels and a plurality of vertical keels which are vertically connected with each other, and the fixing piece (12) is used for fixedly connecting the keel frame (11) to a building wallboard; the sound absorbing unit (2) comprises sound absorbing cotton (21) and an aluminum honeycomb plate (22), the sound absorbing cotton (21) is arranged in a space between a transverse keel and a vertical keel of the keel frame (11), and the aluminum honeycomb plate (22) is arranged on one side, opposite to a building wallboard, of the keel frame (11).
2. The sound absorbing wall structure of decorative aluminum plate according to claim 1, characterized in that both sides of the keel frame (11) are provided with steel wire mesh, such that the steel wire mesh covers the side of the sound absorbing cotton (21).
3. The decorative aluminum sheet sound absorbing wall structure of claim 2 wherein said wire mesh is galvanized wire mesh.
4. The sound-absorbing wall surface structure of the decorative aluminum plate according to claim 2, wherein the surface of the sound-absorbing cotton (21) is coated with a moisture-proof flame-retardant layer.
5. The sound-absorbing wall surface structure of decorative aluminum plate according to claim 4, characterized in that said sound-absorbing cotton (21) is glass fiber sound-absorbing cotton; the dampproof flame-retardant layer is hydrophobic glass fiber cloth.
6. The decorative aluminum panel sound absorbing wall structure of claim 5 wherein said aluminum honeycomb panel (22) is an aluminum honeycomb perforated sound absorbing panel.
7. The decorative aluminum sheet sound absorbing wall structure of claim 6 wherein the aluminum honeycomb perforated sound absorbing panel has a perforation ratio of not less than 20%; the outer side face of the aluminum honeycomb perforated sound absorbing plate is further provided with a heat transfer layer.
8. The sound absorbing wall structure of decorative aluminum sheet according to any one of claims 1 to 7, wherein the fixing member (12) comprises a bracket and a bolt, the bracket has two flanges, one of which is fixedly connected to the keel frame (11), and the other of which is fixed to the building wall panel by the bolt.
9. The sound absorbing wall surface structure of decorative aluminum plate according to claim 8, wherein the upper and lower ends of the vertical keels are fixedly connected with the building top plate and the building bottom plate respectively, and the horizontal keels and the vertical keels are galvanized steel square tubes.
10. The decorative aluminum sheet sound absorbing wall structure of claim 9 wherein said corner brackets are galvanized corner brackets and said bolts are expansion bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322210428.6U CN220598967U (en) | 2023-08-15 | 2023-08-15 | Decorative aluminum plate sound-absorbing wall surface structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322210428.6U CN220598967U (en) | 2023-08-15 | 2023-08-15 | Decorative aluminum plate sound-absorbing wall surface structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220598967U true CN220598967U (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322210428.6U Active CN220598967U (en) | 2023-08-15 | 2023-08-15 | Decorative aluminum plate sound-absorbing wall surface structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220598967U (en) |
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2023
- 2023-08-15 CN CN202322210428.6U patent/CN220598967U/en active Active
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