Bendable assembled sound absorption diffuser

Abstract

This application provides a flexible, prefabricated sound-absorbing diffuser, specifically comprising a sound-absorbing layer, a flame-retardant layer, a perforated aluminum plate, and ceramic-aluminum strips. One side of the sound-absorbing layer is connected to a building wall, and the other side is connected to the perforated aluminum plate via the flame-retardant layer. The perforated aluminum plate and the ceramic-aluminum strips are connected by a chain-type buckle. The chain-type buckle includes a snap-fit ​​portion at both ends of the perforated aluminum plate and a fastening portion at both ends of the ceramic-aluminum strips. The snap-fit ​​portion and the fastening portion are compatible. The building wall, the sound-absorbing layer, the flame-retardant layer, and the perforated aluminum plate have the same curvature. The perforated aluminum plate and the ceramic-aluminum plate are connected by a chain-type buckle to achieve a flexible shape for the sound-absorbing diffuser, and the overall structure meets Class A fire resistance requirements, breaking through the design limitations of conventional sound-absorbing diffusers. It features low production and operating costs, simple construction and installation, modular production capability, high production efficiency, and excellent decorative and acoustic effects.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal technology, and in particular to a flexible, assembled sound-absorbing diffuser. Background Technology

[0002] Sound absorbers and diffusers are important components in acoustic engineering. Early applications primarily involved concert halls and recording studios, where they scatter sound waves through geometric surface designs (such as QRDs and MLSs), combining sound absorption and diffusion. In the late 20th century, advancements in computer simulation and materials science spurred optimized designs, such as composite structures and variable-parameter diffusers. Since the 21st century, the application of novel porous materials, 3D printing technology, and acoustic metamaterials has further enhanced low-frequency absorption and broadband diffusion performance.

[0003] Traditional diffusers often rely on wood or plaster substrates, resulting in heavy weight and limited design options. Steel-wood frame structures increase installation costs, while fiber materials like rock wool, though lightweight, pose health risks. While 3D printing technology can create complex geometries such as conical and cylindrical modules, its sub-millimeter pore printing precision is insufficient, and material costs are high.

[0004] Due to the inherent limitations of conventional substrates, their acoustic performance and decorative design are restricted, making it difficult to meet acoustic and aesthetic requirements. This results in low usage rates and high costs in actual engineering projects. Conventional sound-absorbing diffusers cannot achieve curved surfaces, making them unsuitable for decorative purposes; similar materials that can achieve curved surfaces do not meet Class A fire resistance requirements, thus prohibiting their use in large public buildings such as opera houses, concert halls, and lecture halls; their large and heavy size makes construction and installation difficult, leading to high operating costs; and the numerous manufacturing and installation processes result in high production costs. Utility Model Content

[0005] In view of the above problems, the present invention provides a flexible, assembled sound-absorbing diffuser that overcomes or at least partially solves the above problems:

[0006] A flexible, assembled sound-absorbing diffuser includes a sound-absorbing layer, a flame-retardant layer, a perforated aluminum plate, and ceramic-aluminum strips.

[0007] One side of the sound-absorbing layer is connected to the building wall, and the other side of the sound-absorbing layer is connected to the perforated aluminum plate through the flame-retardant layer; the perforated aluminum plate and the ceramic aluminum strip are connected by a chain buckle.

[0008] The chain buckle includes a snap-fit ​​portion disposed at both ends of the perforated aluminum plate and a fastening portion disposed at both ends of the ceramic aluminum strip; the snap-fit ​​portion and the fastening portion are adapted to each other;

[0009] The building walls, the sound-absorbing layer, the flame-retardant layer, and the perforated aluminum plate have the same curvature.

[0010] Preferably, the sound-absorbing layer includes sound-absorbing cotton and longitudinal and through-core keels for supporting the sound-absorbing cotton structure;

[0011] Both the longitudinal keel and the through keel are disposed inside the sound-absorbing cotton, and the longitudinal keel and the through keel are arranged perpendicularly.

[0012] Preferably, the flame-retardant layer includes a first flame-retardant interlayer and a second flame-retardant interlayer;

[0013] The first flame-retardant strip plate and the second flame-retardant strip plate are arranged in parallel.

[0014] Preferably, the position where the snap-fit ​​part connects to the fastening part is provided with damping paint.

[0015] Preferably, the thickness of both the first flame-retardant strip and the second flame-retardant strip is in the range of 5-20mm.

[0016] Preferably, the thickness of the sound-absorbing cotton is in the range of 20-100mm.

[0017] Preferably, the perforation rate of the perforated aluminum plate ranges from 4% to 20%.

[0018] Preferably, the snap-fit ​​portion includes a vertical portion and a curled portion disposed at one end of the vertical portion;

[0019] The curled portion is connected to the fastening portion.

[0020] Preferably, the fastening part is L-shaped.

[0021] Preferably, the number of perforated aluminum plates is greater than the number of ceramic aluminum strips.

[0022] This application specifically includes the following advantages:

[0023] In the embodiments of this application, compared with the high cost of existing technologies, conventional sound-absorbing diffusers cannot achieve curved shapes, making it difficult to meet decorative needs; similar materials that can achieve curved shapes do not meet Class A fire resistance requirements and cannot be used in large public buildings such as opera houses, concert halls, and lecture halls. This application provides a method to achieve a flexible shape for the sound-absorbing diffuser by connecting the panels with a chain-type snap fastener. Specifically, it includes a sound-absorbing layer, a flame-retardant layer, a perforated aluminum plate, and ceramic aluminum strips; one side of the sound-absorbing layer is connected to the building wall, and the other side of the sound-absorbing layer is connected to the perforated aluminum plate through the flame-retardant layer; the perforated aluminum plate and the ceramic aluminum strips are connected by a chain-type snap fastener; the chain-type snap fastener includes a snap-fit ​​part provided at both ends of the perforated aluminum plate and a snap-fit ​​part provided at both ends of the ceramic aluminum strip; the snap-fit ​​part and the snap-fit ​​part are compatible; the curvature of the building wall, the sound-absorbing layer, the flame-retardant layer, and the perforated aluminum plate is the same. The sound-absorbing diffuser achieves a flexible shape by connecting the perforated aluminum plate and the ceramic aluminum plate with a chain-type snap-fit ​​mechanism. The overall structure meets Class A fire resistance requirements, overcoming the design limitations of conventional sound-absorbing diffusers. It features low production and operating costs, simple construction and installation, modular production capability, high production efficiency, and excellent decorative and acoustic effects. Attached Figure Description

[0024] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the transverse cross-sectional structure of a flexible, assembled sound-absorbing diffuser according to this utility model.

[0026] Figure 2 This is an enlarged structural schematic diagram of a flexible, assembled sound-absorbing diffuser according to this utility model;

[0027] Figure 3 This is a three-dimensional schematic diagram of a flexible, assembled sound-absorbing diffuser according to this utility model;

[0028] Figure 4 This is a longitudinal cross-sectional structural diagram of a flexible, assembled sound-absorbing diffuser according to this utility model.

[0029] 1. Sound-absorbing cotton; 2. Longitudinal keel; 3. Through-core keel; 4. Flame-retardant layer; 5. Perforated aluminum plate; 51. Snap-fit ​​part; 511. Damping paint; 6. Ceramic aluminum strip; 61. Fastening part; 7. Building wall. Detailed Implementation

[0030] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] The inventors, through analysis of existing technologies, discovered that sound-absorbing diffusers are crucial components in acoustic engineering. Early applications primarily involved concert halls and recording studios, using geometric surface designs (such as QRDs and MLSs) to scatter sound waves, thus combining sound absorption and diffusion. In the late 20th century, advancements in computer simulation and materials science spurred optimized designs, such as composite structures and variable-parameter diffusers. Since the 21st century, the application of novel porous materials, 3D printing technology, and acoustic metamaterials has further enhanced low-frequency absorption and broadband diffusion performance.

[0032] Traditional diffusers often rely on wood or plaster substrates, resulting in heavy weight and limited design options. Steel-wood frame structures increase installation costs, while fiber materials like rock wool, though lightweight, pose health risks. While 3D printing technology can create complex geometries such as conical and cylindrical modules, its sub-millimeter pore printing precision is insufficient, and material costs are high.

[0033] Due to the inherent limitations of conventional substrates, their acoustic performance and decorative design are restricted, making it difficult to meet acoustic and aesthetic requirements. This results in low usage rates and high costs in actual engineering projects. Conventional sound-absorbing diffusers cannot achieve curved surfaces, making them unsuitable for decorative purposes; similar materials that can achieve curved surfaces do not meet Class A fire resistance requirements, thus prohibiting their use in large public buildings such as opera houses, concert halls, and lecture halls; their large and heavy size makes construction and installation difficult, leading to high operating costs; and the numerous manufacturing and installation processes result in high production costs.

[0034] Reference Figures 1-4 The diagram shows a structural schematic of a flexible, assembled sound-absorbing diffuser according to the present invention. Specifically, it may include the following structure: a sound-absorbing layer, a flame-retardant layer 4, a perforated aluminum plate 5, and ceramic-aluminum strips 6; one side of the sound-absorbing layer is connected to the building wall 7, and the other side of the sound-absorbing layer is connected to the perforated aluminum plate 5 through the flame-retardant layer 4; the perforated aluminum plate 5 and the ceramic-aluminum strips 6 are connected by a chain-type buckle; the chain-type buckle includes a snap-fit ​​portion 51 at both ends of the perforated aluminum plate 5 and a fastening portion 61 at both ends of the ceramic-aluminum strips 6; the snap-fit ​​portion 51 and the fastening portion 61 are compatible; the building wall 7, the sound-absorbing layer, the flame-retardant layer 4, and the perforated aluminum plate 5 have the same curvature.

[0035] In the embodiments of this application, compared with the high cost of existing technologies, conventional sound-absorbing diffusers cannot achieve curved shapes, making it difficult to meet decorative needs; similar materials that can achieve curved shapes do not meet Class A fire resistance requirements and cannot be used in large public buildings such as opera houses, concert halls, and lecture halls. This application provides a method to achieve a flexible shape for the sound-absorbing diffuser by connecting the panels with a chain-type snap fastener. Specifically, it includes a sound-absorbing layer, a flame-retardant layer 4, a perforated aluminum plate 5, and a ceramic aluminum strip 6; one side of the sound-absorbing layer is connected to the building wall 7, and the other side of the sound-absorbing layer is connected to the perforated aluminum plate 5 through the flame-retardant layer 4; the perforated aluminum plate 5 and the ceramic aluminum strip 6 are connected by a chain-type snap fastener; the chain-type snap fastener includes a snap-fit ​​part 51 provided at both ends of the perforated aluminum plate 5 and a snap-fit ​​part 61 provided at both ends of the ceramic aluminum strip 6; the snap-fit ​​part 51 and the snap-fit ​​part 61 are compatible; the curvature of the building wall 7, the sound-absorbing layer, the flame-retardant layer 4, and the perforated aluminum plate 5 is the same. The perforated aluminum plate 5 and the ceramic aluminum plate are connected by a chain-type snap-fit ​​mechanism, enabling the sound-absorbing diffuser to achieve a flexible shape. The overall structure meets Class A fire resistance requirements, overcoming the design limitations of conventional sound-absorbing diffusers. It features low production and operating costs, simple construction and installation, modular production capability, high production efficiency, and excellent decorative and acoustic effects.

[0036] The following will further describe a flexible, assembled sound-absorbing diffuser in this exemplary embodiment.

[0037] In one embodiment of this application, one side of the sound-absorbing layer is connected to the building wall 7, and the other side of the sound-absorbing layer is connected to the perforated aluminum plate 5 through the flame-retardant layer 4; the sound-absorbing layer includes sound-absorbing cotton 1 and longitudinal keel 2 and through keel 3 for supporting the structure of the sound-absorbing cotton 1; the longitudinal keel 2 and through keel 3 are both disposed inside the sound-absorbing cotton 1, and the longitudinal keel 2 and through keel 3 are arranged vertically.

[0038] As an example, the longitudinal keel 2 penetrates the sound-absorbing cotton 1 and has the same height as the thickness of the sound-absorbing cotton 1. The multiple longitudinal keels 2 are evenly spaced to support the sound-absorbing cotton 1. The through keel 3 is perpendicular to the longitudinal keels 2 and penetrates the sound-absorbing cotton 1.

[0039] In one embodiment of this application, the thickness of the sound-absorbing cotton 1 ranges from 20 to 100 mm. Preferably, the thickness of the sound-absorbing cotton 1 is 20 mm; the thickness of the sound-absorbing cotton 1 is 50 mm; preferably, the thickness of the sound-absorbing cotton 1 is 30 mm; preferably, the thickness of the sound-absorbing cotton 1 is 40 mm; preferably, the thickness of the sound-absorbing cotton 1 is 60 mm; preferably, the thickness of the sound-absorbing cotton 1 is 70 mm; and preferably, the thickness of the sound-absorbing cotton 1 is 100 mm.

[0040] As an example, the sound-absorbing cotton 1 is glass fiber sound-absorbing cotton 1. The curvature of the sound-absorbing cotton 1 is the same as that of the building wall 7. This design not only allows it to fit tightly against the building wall 7, but also fully utilizes the sound-absorbing characteristics of the glass fiber sound-absorbing cotton 1, effectively absorbing sound waves of different frequencies to achieve a good noise reduction effect and meet the acoustic requirements of the building. The surface density of the glass wool in this application can be 10 kg / m³. 3 16kg / m 3 24kg / m 3 32kg / m 3 48kg / m 3 64kg / m 3 80kg / m 3 96kg / m 3 110kg / m 3 120kg / m 3 When the surface density is 10 kg / m³ 3 16kg / m 3 24kg / m 3 When the sound absorption coefficient is low at low frequencies, and the surface density is 32 kg / m³, it is suitable for applications with low sound absorption coefficients at low frequencies. 3 48kg / m 3 64kg / m 3 80kg / m 3 96kg / m 3 110kg / m 3 At that time, the acoustic performance was good, exceeding 120 kg / m 3 The acoustic performance deteriorates.

[0041] Specifically, the glass fiber sound-absorbing cotton 1 has a large number of fine and interconnected pore structures inside, which can effectively absorb mid-to-high frequency sound waves when sound waves are introduced. With a density of 48 kg / m3, it can achieve efficient absorption of sound of different frequencies while ensuring structural stability.

[0042] From a physical perspective, glass fiber sound-absorbing cotton 1 has good flexibility and elasticity, making it easy to process and cut, and can adapt to the installation requirements of sound-absorbing layers of various complex shapes; at the same time, it has a certain compressive strength, and together with longitudinal keel 2 and through keel 3, it can maintain a stable shape during long-term use, is not easy to collapse or deform, and ensures a long-lasting sound absorption effect.

[0043] In terms of environmental protection and safety, fiberglass sound-absorbing cotton 1 is non-toxic and harmless, does not release harmful gases, and meets the environmental protection standards for building materials. Furthermore, its chemical properties are stable and it possesses flame-retardant characteristics. Working synergistically with the flame-retardant layer 4 in the sound-absorbing layer, it can improve the overall fire safety of the structure, reduce the risk of fire, and create a safe and quiet environment for the building space.

[0044] In one specific embodiment, the sound-absorbing layer is composed of sound-absorbing cotton 1, longitudinal keel 2 and through keel 3, wherein the longitudinal keel 2 and through keel 3 are used to support the structure of the sound-absorbing cotton 1, and both are set inside the sound-absorbing cotton 1 and perpendicular to each other to form a stable support structure, ensuring the overall stability and reliability of the sound-absorbing layer.

[0045] In one specific embodiment, the longitudinal keel 2 penetrates through the sound-absorbing cotton 1, and its height is consistent with the thickness of the sound-absorbing cotton 1. Multiple longitudinal keels 2 are evenly distributed to provide uniform support for the sound-absorbing cotton 1, preventing it from collapsing or deforming during use and ensuring stable sound absorption. The through keel 3 is perpendicular to the longitudinal keel 2 and penetrates through the sound-absorbing cotton 1. It works in conjunction with the longitudinal keel 2 to further enhance the support for the sound-absorbing cotton 1, and at the same time helps to optimize the propagation path of sound waves within the sound-absorbing layer, thereby improving sound absorption performance.

[0046] The longitudinal keel 2 plays a crucial longitudinal support role in the sound-absorbing layer structure. It can be made of high-strength metal, such as aluminum alloy or steel, and is formed into a specific cross-sectional shape through extrusion or rolling processes. In this application, it is a C-type, which can reduce weight while ensuring the strength of the keel itself, making it easier to install and transport. The length direction of the longitudinal keel 2 is consistent with the thickness direction of the sound-absorbing cotton 1, running through the entire sound-absorbing cotton 1. Multiple longitudinal keels 2 are evenly distributed to form a regular support array, evenly distributing the weight and external pressure of the sound-absorbing cotton 1 and preventing local deformation of the sound-absorbing cotton 1. The through keel 3 is set perpendicular to the longitudinal keel 2, and is also mostly made of metal. Its cross-sectional shape may be similar to that of the longitudinal keel 2 or other shapes may be used according to design requirements. The through keel 3 runs through the sound-absorbing cotton 1 and connects the longitudinal keels 2 laterally, forming a vertically intersecting grid-like support system with the longitudinal keels 2.

[0047] In one embodiment of this application, the flame-retardant layer 4 includes a first flame-retardant strip and a second flame-retardant strip; the first flame-retardant strip and the second flame-retardant strip are arranged in parallel. This parallel arrangement can create a continuous and uniform fire barrier between the sound-absorbing layer and the perforated aluminum plate 5, effectively preventing the spread of flames and heat conduction, and significantly improving the fire safety performance of the building wall 7 decorative structure.

[0048] In one embodiment of this application, the thickness of both the first and second flame-retardant strip panels ranges from 5 to 20 mm; preferably, the thickness of the first and second flame-retardant strip panels is 5 mm; preferably, the thickness of the first and second flame-retardant strip panels is 6 mm; preferably, the thickness of the first and second flame-retardant strip panels is 10 mm; preferably, the thickness of the first and second flame-retardant strip panels is 15 mm; preferably, the thickness of the first and second flame-retardant strip panels is 20 mm. For example, in public building areas with high fire protection requirements, strip panels with a thickness of 20 mm can be selected, as their thicker structure can withstand flame burning for a longer period of time, delaying the spread of fire; while in residential decoration where space occupancy is more sensitive, strip panels with a thickness of 5 mm or 10 mm can meet basic fire protection specifications while reducing the occupation of indoor space.

[0049] It should be noted that the first and second flame-retardant sandwich panels are made of special flame-retardant materials. By adding high-efficiency flame retardants and optimizing the production process, the materials possess excellent flame-retardant properties and can quickly form a carbonized layer when exposed to fire, inhibiting the continued combustion reaction. The parallel double-layer structure further enhances the flame-retardant effect. Together with the sound-absorbing layer and perforated aluminum plate 5, they form a composite wall decoration structure that combines sound absorption and noise reduction with fire safety.

[0050] In one embodiment of this application, the perforated aluminum plate 5 and the ceramic aluminum strip 6 are connected by a chain buckle; the chain buckle includes a snap-fit ​​portion 51 disposed at both ends of the perforated aluminum plate 5 and a fastening portion 61 disposed at both ends of the ceramic aluminum strip 6; the snap-fit ​​portion 51 and the fastening portion 61 are adapted to each other.

[0051] As an example, the chain-type buckle consists of snap-fit ​​parts 51 at both ends of the perforated aluminum plate 5 and snap-fit ​​parts 61 at both ends of the ceramic aluminum strip 6. The shapes and sizes of the two parts are matched to form a precise fastening structure. The snap-fit ​​part 51 is designed as a hook with a curled portion, while the snap-fit ​​part 61 is correspondingly designed as an L-shaped hook structure that can be embedded into the snap-fit ​​part 51. During installation, the snap-fit ​​part 61 of the ceramic aluminum strip 6 is aligned with the snap-fit ​​part 51 of the perforated aluminum plate 5, and a simple sliding operation achieves quick fastening. This connection method eliminates the need for complex tools and additional connectors, significantly simplifying the installation process and effectively improving construction efficiency. Simultaneously, the snap-fit ​​part 51 and the snap-fit ​​part 61 fit tightly together to form a stable mechanical connection, ensuring that the perforated aluminum plate 5 and the ceramic aluminum strip 6 are not easily loosened or detached during use, enhancing the stability and reliability of the overall structure and providing a durable connection solution for architectural decoration.

[0052] In one embodiment of this application, the snap-fit ​​portion 51 includes a vertical portion and a curled portion disposed at one end of the vertical portion; the curled portion is connected to the fastening portion 61. The fastening portion 61 is L-shaped.

[0053] As an example, the perforated aluminum plate 5 has a snap-fit ​​part 51 at both ends, and the ceramic aluminum strip 6 has a fastening part 61 at both ends. The snap-fit ​​part 51 on the right side of the perforated aluminum plate 5 and the fastening part 61 on the left side of the ceramic aluminum strip 6 engage. The fastening part 61 on the right side of the ceramic aluminum strip 6 engages with the snap-fit ​​part 51 on the left side of the next perforated aluminum plate 5, and so on. Therefore, the number of perforated aluminum plates 5 is greater than the number of ceramic aluminum strips 6, and the number of perforated aluminum plates 5 minus the number of ceramic aluminum strips 6 is 1.

[0054] In one specific embodiment, the snap-fit ​​part 51 serves as a connecting component for the perforated aluminum plate 5. Its structure includes a vertical part and a rolled part. The vertical part is fixed perpendicularly to the edge of the perforated aluminum plate 5, while the rolled part is located at one end of the vertical part. It is bent and formed through a specific process to create an inwardly rolled arc-shaped structure. This rolled part is the key component for connecting with the snap-fit ​​part 61. The snap-fit ​​part 61 adopts an L-shaped design, consisting of mutually perpendicular horizontal and vertical structures. The horizontal structure is integrally formed with the ceramic-aluminum strip 6, while the vertical structure cooperates with the rolled part of the snap-fit ​​part 51. The vertical structure, the horizontal structure, and the ceramic-aluminum strip 6 are integrally formed.

[0055] In one specific embodiment, the perforated aluminum plate 5 has snap-fit ​​parts 51 at both ends, and the ceramic aluminum strip 6 has fastening parts 61 at both ends, forming an orderly interlocking relationship between adjacent components. When installing the snap-fit ​​part 51 on the right side of the perforated aluminum plate 5 and the fastening part 61 on the left side of the ceramic aluminum strip 6, the vertical plate of the L-shaped fastening part 61 of the ceramic aluminum strip 6 should be aligned with the curled part of the snap-fit ​​part 51 of the perforated aluminum plate 5. By applying appropriate force, the vertical plate is embedded into the curled part. The arc-shaped structure of the curled part can tightly wrap the vertical plate, forming a stable mechanical interlock. The fastening part 61 on the right side of the ceramic aluminum strip 6 and the snap-fit ​​part 51 on the left side of the next perforated aluminum plate 5 are also interlocked in the same way, and so on, to build a continuous decorative panel splicing structure.

[0056] In one embodiment of this application, a damping paint 511 is provided at the connection position between the snap-fit ​​part 51 and the fastening part 61. The damping paint 511 can fill the tiny gaps between the components, reduce frictional noise caused by vibration; at the same time, it enhances the stability of the connection, slows down the relative displacement and wear between the components, extends the service life of the overall structure, and has good adhesion, so it will not affect the convenience of quick installation and disassembly of the chain buckle.

[0057] In this cyclic interlocking connection method, there is a specific quantitative relationship between the perforated aluminum plate 5 and the ceramic aluminum strip 6. Since each ceramic aluminum strip 6 needs to be connected to the interlocking part 51 of the perforated aluminum plate 5 on both sides, and each end requires an independent perforated aluminum plate 5, the number of perforated aluminum plates 5 is greater than the number of ceramic aluminum strips 6, and the difference between the number of perforated aluminum plates 5 and the number of ceramic aluminum strips 6 is always 1. This quantitative setting ensures the integrity and stability of the entire decorative surface connection structure, avoiding connection gaps or structural weaknesses. At the same time, the chain-type interlocking connection method eliminates the need for bolts, glue, and other additional connectors, reducing material costs, simplifying the installation process, improving construction efficiency, and facilitating later maintenance and component replacement, demonstrating excellent practicality and economy in the field of architectural decoration.

[0058] In one embodiment of this application, the perforation rate of the perforated aluminum plate 5 ranges from 4% to 20%; each hole is equally spaced; or each hole may be arranged irregularly, in any pattern, or at equal intervals.

[0059] In one embodiment of this application, the building wall 7, the sound-absorbing layer, the flame-retardant layer 4, and the perforated aluminum plate 5 have the same curvature. This avoids gaps or voids caused by differences in curvature, preventing sound leakage and effectively improving sound absorption and noise reduction. Simultaneously, the identical curvature makes installation of each layer more convenient, ensuring the stability and aesthetics of the overall structure.

[0060] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0061] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0062] The above provides a detailed description of a flexible, assembled sound-absorbing diffuser provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A flexible, prefabricated sound-absorbing diffuser, said sound-absorbing diffuser being used in building walls, characterized in that, Includes sound-absorbing layer, flame-retardant layer, perforated aluminum plate, and ceramic aluminum strip; One side of the sound-absorbing layer is connected to the building wall, and the other side of the sound-absorbing layer is connected to the perforated aluminum plate through the flame-retardant layer; the perforated aluminum plate and the ceramic aluminum strip are connected by a chain buckle. The chain buckle includes a snap-fit ​​portion disposed at both ends of the perforated aluminum plate and a fastening portion disposed at both ends of the ceramic aluminum strip; the snap-fit ​​portion and the fastening portion are adapted to each other; The building walls, the sound-absorbing layer, the flame-retardant layer, and the perforated aluminum plate have the same curvature.

2. The flexible, as-fit sound-absorbing diffuser according to claim 1, characterized in that, The sound-absorbing layer includes sound-absorbing cotton and longitudinal and through-core keels for supporting the sound-absorbing cotton structure; Both the longitudinal keel and the through keel are disposed inside the sound-absorbing cotton, and the longitudinal keel and the through keel are arranged perpendicularly.

3. The flexible, as-fit sound-absorbing diffuser according to claim 1, characterized in that, The flame-retardant layer includes a first flame-retardant interlayer plate and a second flame-retardant interlayer plate; The first flame-retardant strip plate and the second flame-retardant strip plate are arranged in parallel.

4. The flexible, as-fit sound-absorbing diffuser according to claim 1, characterized in that, The position where the snap-fit ​​part connects to the fastening part is provided with damping paint.

5. The flexible, as-fit sound-absorbing diffuser according to claim 3, characterized in that, The thickness of both the first and second flame-retardant strips ranges from 5 to 20 mm.

6. The flexible, as-fit sound-absorbing diffuser according to claim 2, characterized in that, The thickness of the sound-absorbing cotton ranges from 20 to 100 mm.

7. The flexible, as-fit sound-absorbing diffuser according to claim 1, characterized in that, The perforation rate of the perforated aluminum plate ranges from 4% to 20%.

8. The flexible, as-fit sound-absorbing diffuser according to claim 1, characterized in that, The snap-fit ​​portion includes a vertical portion and a curled portion disposed at one end of the vertical portion; The curled portion is connected to the fastening portion.

9. The flexible, as-fit sound-absorbing diffuser according to claim 1, characterized in that, The fastening part is L-shaped.

10. The flexible, as-fit sound-absorbing diffuser according to claim 1, characterized in that, The number of perforated aluminum plates is greater than the number of ceramic aluminum strips.

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