A multi-layer composite structure soundproof fence

Abstract

This utility model provides a multi-layer composite soundproof enclosure, including a support assembly and a composite soundproof panel installed on the support assembly. The composite soundproof panel includes a perforated plate with several holes; a sound-absorbing layer, which is a flexible porous layer with several evenly distributed wave-shaped or wedge-shaped protrusions; a honeycomb sandwich panel layer, including a honeycomb core plate with several honeycomb grids, the honeycomb grids being filled with sound-absorbing particles or sound-absorbing fibers; and a frame, which circumferentially covers the outside of the perforated plate, the sound-absorbing layer, and the honeycomb sandwich panel layer, and sequentially presses the perforated plate, the sound-absorbing layer, and the honeycomb sandwich panel layer to form the composite soundproof panel. This utility model can solve the technical problem of poor noise reduction effect of existing soundproof enclosures on low and medium frequency noise.

Description

Technical Field

[0001] This utility model relates to the field of soundproof enclosure technology, and in particular to a multi-layer composite structure soundproof enclosure. Background Technology

[0002] With the deepening of urbanization in my country, various construction projects are often located adjacent to residential areas, commercial areas, or office areas. Noise pollution generated during construction has become one of the major problems affecting the surrounding environment and residents' lives. As the most effective and widespread facility for controlling the spread of construction noise, the performance of soundproof barriers directly affects the effectiveness of noise control.

[0003] Currently, the mainstream construction site soundproofing barriers on the market mainly adopt a "single-layer metal panel + filling material" structure. This type of barrier is usually composed of an outer perforated metal plate (such as galvanized steel plate) and an inner loose sound-absorbing material (such as rock wool). Although it can absorb high-frequency noise to a certain extent, it also has obvious defects: First, the noise reduction effect of mid- and low-frequency noise is not good, and the absorption efficiency of low-frequency, muffled mechanical equipment noise (such as the roar of excavators and large trucks) is limited. Low-frequency noise is prone to diffraction, resulting in "sound leakage". Second, commonly used sound-absorbing cotton (such as rock wool) may clump together after getting damp or accumulating dust, affecting the sound absorption performance. In addition, rock wool fibers are irritating to human skin and respiratory tract, posing health risks when installed or damaged. Summary of the Invention

[0004] This invention provides a multi-layer composite structure soundproof enclosure to solve the technical problem that existing soundproof enclosures are not effective in reducing mid- and low-frequency noise.

[0005] This utility model provides a multi-layer composite structure soundproof enclosure, including a support assembly and a composite soundproof panel installed on the support assembly, wherein the composite soundproof panel includes: A perforated plate with several holes. The sound-absorbing layer is a flexible porous layer with several wavy or wedge-shaped protrusions evenly distributed on it. A honeycomb sandwich panel layer includes a honeycomb core panel with a plurality of honeycomb-shaped grids, wherein the honeycomb-shaped grids are filled with sound-absorbing particles or sound-absorbing fibers; The frame is circumferentially wrapped around the outside of the perforated plate, the sound-absorbing layer, and the honeycomb sandwich panel, and the perforated plate, the sound-absorbing layer, and the honeycomb sandwich panel are pressed together in sequence to form the composite sound insulation board.

[0006] In one embodiment of this utility model, the holes in the perforated plate are louvered holes.

[0007] In one embodiment of the present invention, the honeycomb core panel is provided with panels on both sides facing the sound-absorbing layer and on both sides away from the sound-absorbing layer.

[0008] In one embodiment of this utility model, the thickness of the sound-absorbing layer is 20-30mm.

[0009] In one embodiment of the present invention, the support assembly includes at least two columns, and the composite sound insulation board is installed between two adjacent columns; it also includes a diagonal brace for providing lateral support to the columns, and the top end of the diagonal brace is rotatably connected to the column.

[0010] In one embodiment of the present invention, the two side walls opposite to each other of the column are provided with limiting grooves, so that the cross-sectional profile of the column is H-shaped, and the side end of the composite sound insulation board is inserted into the limiting groove.

[0011] In one embodiment of this utility model, the bottom end of the diagonal brace is rotatably connected to a base plate.

[0012] In one embodiment of the present invention, the base plate is provided with a fixing hole, and a ground anchor can be inserted into the fixing hole.

[0013] In one embodiment of this utility model, a horizontal tie rod is connected between two adjacent columns.

[0014] In one embodiment of the present invention, a pin sleeve is fixed to the upper middle part of the column, and the horizontal tie rod includes a first tie rod and a second tie rod. One end of the first tie rod and the second tie rod are fixed with a pin that can be inserted into the pin sleeve, and the other ends of the first tie rod and the second tie rod are connected by a positive and negative threaded sleeve.

[0015] The beneficial effects of this utility model are as follows: This utility model proposes a multi-layer composite soundproof enclosure. The composite soundproof panel is supported by a support component to form a whole. The composite soundproof panel adopts a multi-layer composite structure, with a perforated plate on the wave-facing side to allow efficient sound wave entry. The inner side of the perforated plate adopts a flexible porous layer with a wave crest or wedge-shaped structure. Its three-dimensional structure greatly increases the contact area and path length with sound waves. The friction and adhesion of the flexible porous structure improves the energy consumption and absorption efficiency of mid- and low-frequency sound waves. The honeycomb sandwich panel layer serves as the core support and soundproof layer. Its honeycomb structure further consumes sound wave reflection, absorbs resonance, and dampens friction. The sound-absorbing particles or fibers filled inside further absorb and consume mid-frequency sound waves, making up for the shortcomings of existing technologies in the poor absorption and noise reduction of mid-frequency sound waves. The outer side is tightly wrapped and pressed into a solid whole unit by a frame, ensuring the overall stability of the structure and the service life of the composite soundproof panel. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0017] In the attached diagram: Figure 1 A front view of a multi-layer composite soundproof enclosure provided in an embodiment of this utility model; Figure 2 This is a side view of a front view of a multi-layer composite structure soundproof enclosure provided in one embodiment of the present utility model; Figure 3 This is a cross-sectional view of the connection between the composite sound insulation board and the column in one embodiment of the present invention; Figure 4 This is a partial sectional view of the top of the composite sound insulation board provided in one embodiment of the present invention.

[0018] The attached figures are labeled as follows: Base 101, column 102, pin sleeve 103, ear plate 104, perforated plate 201, louver hole 202, sound-absorbing layer 203, honeycomb core board 204, panel 205, frame 206, horizontal tie rod 301, positive and negative threaded sleeve 302, diagonal brace 401, shackle 402, adjusting bolt 403, base plate 501. Detailed Implementation

[0019] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0020] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0022] Please see Figure 1 , Figure 1 A multi-layer composite soundproof enclosure, as provided in one embodiment of the present invention, includes a support assembly and a composite soundproof panel installed on the support assembly, combined with... Figure 4 As shown, the composite sound insulation panel includes a perforated plate 201, a sound-absorbing layer 203, and a honeycomb sandwich panel layer that are wrapped around the periphery of the frame 206 and pressed together in sequence.

[0023] The perforated plate 201 has several holes. In this embodiment, the perforated plate 201 is preferably made of flame-retardant glass fiber reinforced plastic by molding process.

[0024] The sound-absorbing layer 203 is a flexible porous layer with a number of evenly distributed wave-shaped or wedge-shaped protrusions. In this embodiment, the preferred sound-absorbing layer 203 is made of flame-retardant polyester fiber cotton, whose flame-retardant properties can meet the fire safety requirements of the construction site. The three-dimensional structure of the wave-shaped or wedge-shaped protrusions greatly increases the contact area and path length with sound waves, and significantly improves the energy consumption and absorption efficiency of mid- and low-frequency sound waves through friction and adhesion.

[0025] The honeycomb sandwich panel layer includes a honeycomb core panel 204 with a plurality of honeycomb-shaped grids. The honeycomb grids are filled with sound-absorbing particles or sound-absorbing fibers. In this embodiment, the honeycomb core panel 204 is preferably made of flame-retardant polypropylene, and the sound-absorbing particles or fibers are preferably made of polyurethane foam or environmentally friendly sound-absorbing cotton. This makes the honeycomb sandwich panel layer lightweight and high-strength, with extremely high specific strength. As a core support and sound insulation layer, the honeycomb sandwich panel layer further absorbs and dissipates sound wave reflection, resonance absorption, and friction damping through its honeycomb structure. Furthermore, the sound-absorbing particles or fibers filling the interior further absorb and dissipate mid-frequency sound waves, overcoming the shortcomings of existing technologies in terms of poor mid-frequency sound wave absorption and noise reduction.

[0026] The frame 206, preferably made of high-performance, aging-resistant composite material using a pultrusion molding process, is used in this embodiment. Fiberglass is a preferred material. The frame 206 circumferentially covers the outside of the perforated plate 201, the sound-absorbing layer 203, and the honeycomb sandwich panel layer, and the perforated plate 201, the sound-absorbing layer 203, and the honeycomb sandwich panel layer are sequentially pressed together to form a robust integral unit. The fiberglass frame 206 possesses excellent corrosion resistance, weather resistance, insulation, and strength, and is lightweight, ensuring a long service life for the product under various harsh weather conditions and avoiding the problem of easy corrosion of the metal frame 206 commonly used in existing technologies.

[0027] For example, in this embodiment, the perforations on the perforated plate 201 are louvered holes 202. The louvered holes 202 design not only allows sound waves to enter efficiently but also provides rain and dust protection, preventing the internal structure from being wetted by rainwater. The perforation rate of the perforated plate 201 is acoustically optimized to achieve a range of 20% to 30% to achieve the best sound wave penetration effect.

[0028] For example, in this embodiment, the honeycomb core panel 204 has panels 205 on both sides facing the sound-absorbing layer 203 and away from the sound-absorbing layer 203. In this embodiment, the preferred panels 205 are made of fiberglass. The panels 205 can isolate and protect the inner honeycomb core panel 204, and together with the honeycomb core panel 204, they form a "sandwich" effect, forming a closed loop of "sound wave reception-energy dissipation-reflection enhancement", thereby achieving efficient sound absorption. This provides extremely high specific strength, and the filling material in the honeycomb grid further enhances the sound insulation and sound absorption performance.

[0029] For example, in this embodiment, the thickness of the sound-absorbing layer 203 is 20-30mm, preferably 25mm. As a preferred embodiment, the sound-absorbing layer 203 of this thickness can achieve both good sound absorption and noise reduction effect and light weight, which is more conducive to the convenient use of the enclosure.

[0030] For example, in this embodiment, combined with Figure 2As shown, the support assembly includes columns 102, with composite sound insulation panels installed between adjacent columns 102. A base 101 is fixed to the bottom of each column 102, and a diagonal brace 401 is rotatably connected to the column 102. The base 101 supports the column 102, and the diagonal brace 401 provides lateral support to the column 102. In this preferred embodiment, the column 102 has a welded or integrally formed ear plate 104. An adjusting bolt 403 is threaded to the top of the diagonal brace 401, and a pin is welded to the end of the adjusting bolt 403. The pin is connected to the ear plate 104 via a pin shaft. The support assembly is the core component ensuring the stability, reliability, and rapid assembly of the entire enclosure system. The column 102, as the main vertical load-bearing and stress-bearing component, provides stable support for the composite sound insulation panel. The diagonal brace 401 rotatably connected to the column 102 can be flexibly adjusted in angle according to site requirements to provide stable and reliable lateral support to the column 102, thereby ensuring the lateral stability of the enclosure.

[0031] For example, in this embodiment, both opposite side walls of the column 102 are provided with limiting grooves, so that the cross-sectional profile of the column 102 is H-shaped, combined with Figure 3 As shown, the side end of the composite sound insulation panel is inserted into the limiting groove. In this embodiment, the preferred column 102 is made of hot-dip galvanized H-beam or fiberglass H-beam. The base 101 is integrally formed or welded to the column 102. The H-shaped structure has excellent bending and tilting resistance. The limiting groove of the column 102 can also be pre-set with slots or bolt mounting holes. Corresponding pre-set clips or bolts can be pre-set on the frame 206 of the composite sound insulation panel for quick connection and fixation with the corresponding structure in the limiting groove. This enables modular connection between the composite sound insulation panel and the column 102, which is more conducive to the rapid assembly of the enclosure.

[0032] For example, in this embodiment, the bottom end of the diagonal brace 401 is rotatably connected to a base plate 501. Preferably, the bottom end of the diagonal brace 401 is threadedly connected to an adjusting bolt 403, and a shackle 402 is welded to the bottom end of the adjusting bolt 403. A retaining ring is welded onto the base plate 501, and the shackle 402 is fitted onto the retaining ring. This allows the base plate 501 to rotate freely within a certain angle range, thus perfectly adapting to uneven ground and ensuring that the base plate 501 is always in full contact with the ground, providing stable and reliable support.

[0033] For example, in this embodiment, the base plate 501 is provided with fixing holes, through which ground anchors can be inserted. In this embodiment, high-strength hot-dip galvanized steel ground anchors are preferably used to avoid corrosion. The ground anchors are driven directly into the ground through the fixing holes, stably anchoring the diagonal brace 401 and even the entire enclosure to the ground. This method avoids on-site concrete foundation pouring, achieving purely dry construction, greatly improving installation speed and flexibility, and facilitating dismantling and reuse.

[0034] For example, in this embodiment, a horizontal tie rod 301 connects two adjacent columns 102. By connecting the columns 102 laterally with the horizontal tie rod 301, the fence forms a continuous rigid whole, effectively dispersing horizontal forces such as wind loads, preventing the columns 102 from tilting, and enhancing the overall stability and wind resistance of the entire fence system.

[0035] For example, in this embodiment, a pin sleeve 103 is fixed to the upper middle part of the column 102, and the horizontal tie rod 301 includes a first tie rod and a second tie rod. One end of the first tie rod and the second tie rod are fixed with a pin that can be inserted into the pin sleeve 103, and the other ends of the first tie rod and the second tie rod are connected by a threaded sleeve 302. In this embodiment, the horizontal tie rod 301 can be easily inserted and fixed to the pin sleeve 103 on the column 102 by the pin, and the overall length of the horizontal tie rod 301 can be flexibly fine-tuned by the threaded sleeve 302 in the middle of the horizontal tie rod 301, thereby adjusting the lateral tension of the horizontal tie rod 301 on the fence, ensuring that the fence is a continuous rigid whole in the lateral connection, which is more conducive to improving the overall stability and wind resistance of the fence.

[0036] In summary, the advantages of this utility model compared to the prior art include, but are not limited to: (1) Excellent overall sound insulation performance, especially good at absorbing mid-to-low frequency noise: The innovative multi-layered sound-absorbing structure, consisting of a perforated louvered panel, a three-dimensional sound-absorbing layer, and a honeycomb-filled sandwich panel, is optimized for sound waves of different frequencies. The three-dimensional sound-absorbing cotton layer is specifically designed for low frequencies, while the louvers and cavities target mid-to-high frequencies, and the honeycomb filling addresses a wide frequency range. This achieves efficient noise reduction across the entire frequency band and effectively solves the industry problem of insufficient low-frequency noise reduction in traditional fencing.

[0037] (2) Lightweight and high strength, with good structural stability: The core material uses PP honeycomb panels, which are lightweight and high-strength. While ensuring the overall structural rigidity and wind pressure resistance, it significantly reduces the weight of each panel, greatly facilitating transportation, installation, and disassembly, and lowering labor and machinery costs. The high-performance, aging-resistant composite material frame is strong and does not deform, ensuring that the entire composite sound insulation panel will not develop gaps due to deformation during long-term use, thus preventing sound leakage.

[0038] (3) Excellent durability and weather resistance: The high-performance, aging-resistant composite material frame and PP honeycomb core panel are both acid and alkali resistant, corrosion-resistant, and rust-free, completely solving the problem of easy rust and damage in existing metal fencing technologies, extending service life, and are especially suitable for coastal and high-humidity areas. The outer louver design has a rainproof function, protecting the internal sound-absorbing material from moisture, ensuring long-lasting and stable performance.

[0039] (4) Enhanced safety and environmental friendliness: The main materials (sound-absorbing layer, honeycomb core panel) are all made of flame-retardant or fire-resistant materials to meet the fire protection requirements of the construction site. Materials that easily generate dust pollution, such as rock wool, have been eliminated, and environmentally friendly polyester fiber and PP materials are used instead, making them more friendly to installers and the environment.

[0040] (5) Functional integration and aesthetics: This utility model integrates multiple functions such as sound insulation, sound absorption, dust prevention, weather resistance, and corrosion resistance. The high-performance aging-resistant composite material frame and composite material panel have a smooth surface, are easy to clean, and can be customized in various colors, with a beautiful and elegant appearance that blends well with the urban environment.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A multi-layer composite structure soundproof enclosure, characterized in that, Includes a support assembly and a composite sound insulation panel mounted on the support assembly, the composite sound insulation panel comprising: A perforated plate with several holes drilled in it; The sound-absorbing layer is a flexible porous layer with several wavy or wedge-shaped protrusions evenly distributed on it. A honeycomb sandwich panel layer includes a honeycomb core panel with a plurality of honeycomb-shaped grids, wherein the honeycomb-shaped grids are filled with sound-absorbing particles or sound-absorbing fibers; A frame is circumferentially wrapped around the outside of the perforated plate, the sound-absorbing layer, and the honeycomb sandwich panel, and the perforated plate, the sound-absorbing layer, and the honeycomb sandwich panel are pressed together in sequence to form the composite sound insulation board.

2. The multi-layer composite structure soundproof enclosure according to claim 1, characterized in that: The perforated plate has several holes that are louvered.

3. The multi-layer composite structure soundproof enclosure according to claim 1, characterized in that: The honeycomb core panel has panels on both sides facing the sound-absorbing layer and on both sides away from the sound-absorbing layer.

4. The multi-layer composite structure soundproof enclosure according to claim 3, characterized in that: The thickness of the sound-absorbing layer is 20-30mm.

5. The multi-layer composite structure soundproof enclosure according to claim 1, characterized in that: The support assembly includes at least two columns, with the composite sound insulation panel installed between two adjacent columns; it also includes diagonal braces for providing lateral support to the columns, with the top of the diagonal braces rotatably connected to the columns.

6. The multi-layer composite structure soundproof enclosure according to claim 5, characterized in that: The two opposite side walls of the column are provided with limiting grooves, so that the cross-sectional profile of the column is H-shaped, and the side end of the composite sound insulation board is inserted into the limiting groove.

7. The multi-layer composite structure soundproof enclosure according to claim 5, characterized in that: The bottom end of the diagonal brace is rotatably connected to a base plate.

8. The multi-layer composite structure soundproof enclosure according to claim 7, characterized in that: The base plate is provided with fixing holes, through which ground anchors can be inserted to anchor the ground.

9. A multi-layer composite soundproof enclosure according to claim 5, characterized in that: A horizontal tie rod connects two adjacent columns.

10. A multi-layer composite structure soundproof enclosure according to claim 9, characterized in that: The upper middle part of the column is fixed with a pin sleeve. The horizontal tie rod includes a first tie rod and a second tie rod. One end of the first tie rod and the second tie rod are fixed with a pin that can be inserted into the pin sleeve. The other ends of the first tie rod and the second tie rod are connected by a positive and negative threaded sleeve.

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