Double cavity assembled high sound insulation keel wall

Abstract

The novel double-cavity assembly type high sound insulation keel wall belongs to the technical field of building sound insulation, and comprises a sound insulation wall and a decorative surface layer. The sound insulation wall comprises a special steel framework, vertical and horizontal keels of which are double-cavity profiled keels formed by folding metal plates in one body to form symmetrical left and right concave cavities and upper and lower concave cavities in the middle part; a middle sound insulation plate and double-sided glass wool are embedded into the cavities in a plug-in manner to block the transmission of sound bridges. The decorative surface layer provides two construction forms to support flexible configuration of single / double surfaces. The novel double-cavity keel enhances the rigidity of the structure, the plug-in design simplifies the construction process, and the combination of A-grade fireproof material and sealed cavities realizes the comprehensive effect of high sound insulation, high safety and decorative diversification, which is suitable for theaters, office buildings and other scenes with strict requirements on acoustics and aesthetics, and significantly improves the construction efficiency and reduces the comprehensive cost.

Description

Technical Field

[0001] This invention relates to the field of interior sound insulation and decoration technology, specifically to a double-cavity prefabricated high sound insulation keel wall using modular assembly. Background Technology

[0002] With the increasing demands for sound insulation, fire safety, and construction efficiency in modern architecture, traditional soundproof wall structures have gradually revealed numerous shortcomings. Current technologies often employ single-cavity keel or simple frame supports, resulting in insufficient sound insulation, limited structural strength, and complex construction. For example, single-cavity keels, due to their limited number of cavities, are unable to effectively block sound bridge transmission, leading to insufficient sound insulation performance to meet high standards. Furthermore, the traditional method of combining sound insulation materials with the keel often involves filling or gluing, which can easily lead to material loosening and sound leakage through cavities, affecting long-term stability. In addition, the integration design of decorative surfaces with soundproof walls lacks flexibility, often relying on a single fixing method, making it difficult to adapt to diverse architectural decoration needs. To address these issues, a new type of prefabricated soundproof wall structure is needed. By optimizing keel design, improving material integration, and enhancing construction convenience, a unified approach to high sound insulation performance, high fire resistance, and decorative flexibility is achieved. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the above-mentioned situation by proposing a double-cavity prefabricated high sound insulation keel wall, which uses a double-cavity profile keel, a modular plug-in structure, and multiple decorative surface layer options.

[0004] To achieve the above objectives, the technical solution of this invention is: a double-cavity prefabricated high sound insulation keel wall, comprising a sound insulation wall and a decorative surface layer, wherein the decorative surface layer is installed on both sides of the sound insulation wall, and the sound insulation wall comprises:

[0005] The special steel frame consists of an upper keel, a lower keel, several vertical keels, and several horizontal keels. The vertical and horizontal keels are both double-cavity profile keels. The vertical keels are fixed between the upper and lower keels at intervals, and the horizontal keels are fixed between adjacent vertical keels at intervals.

[0006] The dual-cavity profile keel is integrally folded from a metal plate into an "M"-shaped structure, forming a left concave cavity, a right concave cavity, a middle upper concave cavity, and a middle lower concave cavity;

[0007] Several expansion bolts are used to fix the upper keel to the structural floor slab and the lower keel to the structural ground.

[0008] Several middle soundproof panels, with their two ends respectively inserted between the middle upper and middle lower recesses of adjacent double-cavity profile keels;

[0009] Several pieces of left-side and right-side glass wool are inserted at both ends into the left concave cavity and the top surface of the left cavity, and the right concave cavity and the top surface of the right cavity, respectively, of the adjacent double-cavity profile keel.

[0010] The decorative surface layer includes a base plate and an outer panel. The base plate is fixed to the double-cavity profile keel by nailing, and the outer panel is fixed to the base plate by snap-on profile accessories.

[0011] The baseboard is a cement fiberboard, and the outer cladding panel is a composite aluminum plate.

[0012] The decorative surface layer includes a dry-hanging horizontal keel and a fiber rock decorative panel. The back of the fiber rock decorative panel is fixed with a hanger. The dry-hanging horizontal keel is fixed to the double-cavity profile keel. The fiber rock decorative panel is hung on the dry-hanging horizontal keel through the hanger.

[0013] The dry-hanging horizontal keel is fixed to the double-cavity profile keel by bolts.

[0014] The upper and lower concave cavities in the middle of the double-cavity profile keel are symmetrically arranged, and the left and right concave cavities are located on both sides of the "M"-shaped structure, respectively.

[0015] The metal plate of the double-cavity profile keel is integrally folded and formed by cold rolling process.

[0016] The central soundproof panel is a high-insulation soundproof panel.

[0017] The decorative surface layer can be installed on both sides or one side of the soundproof wall, while the side without the decorative surface layer is fixed only by the base plate.

[0018] Both the upper and lower keels are U-shaped metal profiles with their open ends facing the inside of the soundproof wall and connected to the building structure by expansion bolts.

[0019] By adopting the above structure, the new type of double-cavity prefabricated high sound insulation keel wall improves both technical performance and practicality: First, the double-cavity profile keel, formed by integrally folding and molding metal plates, creates symmetrical left and right concave cavities and upper and lower central concave cavities, effectively blocking sound bridge transmission. Combined with the modular interlocking design of the central sound-absorbing panel and double-sided glass wool, it meets high-standard acoustic requirements. Second, the cold-rolled forming process of the double-cavity keel and the U-shaped upper and lower keel structure enhance overall rigidity, ensuring wall stability and resistance to deformation. Furthermore, the decorative surface layer adopts a dual-mode design combining a baseboard with an exterior panel or dry-hanging fiberglass board, providing diverse decorative options and supporting flexible single / double-sided installation, significantly improving construction efficiency and spatial adaptability. Simultaneously, the combination of Class A fire-resistant sound-absorbing panels and glass wool with the sealed cavity structure further enhances fire safety. This new type combines the advantages of high sound insulation, strong structure, easy assembly, and flexible decoration, making it suitable for interior walls in buildings with stringent acoustic, safety, and aesthetic requirements. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the vertical cross-sectional structure of Embodiment 1 of this utility model;

[0021] Figure 2 yes Figure 1 Enlarged schematic diagram of a portion of the structure in section A;

[0022] Figure 3 yes Figure 1 Enlarged schematic diagram of a partial structure of section B in the middle;

[0023] Figure 4 yes Figure 1 Enlarged schematic diagram of a portion of the structure in section C;

[0024] Figure 5 This is a partial transverse cross-sectional structural diagram of Embodiment 1 of this utility model;

[0025] Figure 6 This is a partial vertical cross-sectional structural diagram of Embodiment 2 of this utility model;

[0026] Figure 7 This is a partial transverse cross-sectional structural diagram of Embodiment 2 of this utility model;

[0027] Figure 8 This is a schematic diagram of the vertical structure of the special steel frame of this utility model;

[0028] Figure 9 This is a schematic diagram of the transverse structure of the special steel frame of this utility model;

[0029] Figure 10 This is a schematic diagram of the cross-sectional structure of the double-cavity profile keel of this utility model. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-10 The specific embodiments of this novel invention will be described in further detail.

[0031] This embodiment is a double-cavity prefabricated high sound insulation keel wall, including a sound insulation wall 100 and a decorative surface layer 200. The decorative surface layer 200 is installed on both sides of the sound insulation wall 100. The sound insulation wall 100 includes:

[0032] The special steel frame 110 is composed of an upper keel 111, a lower keel 112, several vertical keels 113 and several horizontal keels 114. The vertical keels 113 and the horizontal keels 114 are both double-cavity profile keels 115. The vertical keels 115 are fixed between the upper keel 111 and the lower keel 112 at intervals, and the horizontal keels 114 are fixed between two adjacent vertical keels 113 at intervals.

[0033] The dual-cavity profile keel 115 is integrally folded from a metal plate into an "M"-shaped structure, forming a left concave cavity 115a, a right concave cavity 115b, a middle upper concave cavity 115c, and a middle lower concave cavity 115d.

[0034] Several expansion bolts 120 are used to fix the upper keel 111 to the structural floor slab 300 and the lower keel 112 to the structural ground 400;

[0035] Several middle soundproof panels 130 are inserted at both ends between the middle upper concave cavity 115c and the middle lower concave cavity 115d of the adjacent double-cavity profile keel 115.

[0036] Several left-side glass wool 140 and right-side glass wool 150 are respectively inserted at both ends between the left concave cavity 115a and the top surface of the left cavity 115a, and the right concave cavity 115b and the top surface of the right cavity 115b of the adjacent double-cavity profile keel 115.

[0037] The decorative surface layer 200 includes a base plate 210 and an outer decorative panel 220. The base plate 210 is fixed to the double-cavity profile keel 115 by nailing, and the outer decorative panel 220 is fixed to the base plate 210 by snap-fit ​​profile fittings 230.

[0038] In Embodiment 1, the base plate 210 is a cement fiberboard, and the outer decorative panel 220 is a composite aluminum plate.

[0039] In Embodiment 2, the decorative surface layer 220 includes a dry-hanging horizontal keel 221 and a fiber rock decorative panel 222. A hanger 223 is fixed to the back of the fiber rock decorative panel 222. The dry-hanging horizontal keel 221 is fixed to the double-cavity profile keel 115. The fiber rock decorative panel 222 is hung on the dry-hanging horizontal keel 221 through the hanger 223.

[0040] The dry-hanging horizontal keel 221 is fixed to the double-cavity profile keel 115 by bolts.

[0041] The upper concave cavity 115c and the lower concave cavity 115d in the middle of the double-cavity profile keel 115 are symmetrically arranged, and the left concave cavity 115a and the right concave cavity 115b are located on both sides of the "M"-shaped structure, respectively.

[0042] The metal plate of the double-cavity profile keel 115 is integrally folded and formed by cold rolling process.

[0043] The central soundproof panel 130 is a high-insulation soundproof panel.

[0044] The decorative surface layer 200 can be installed on both sides or one side of the soundproof wall 100, and the side without the decorative surface layer 200 is fixed only by the base plate 210.

[0045] Both the upper keel 111 and the lower keel 112 are U-shaped metal profiles with their open ends facing the interior of the soundproof wall 100 and connected to the building structure by expansion bolts 120.

[0046] During installation, the dedicated steel frame 110 is installed first. Expansion bolts 120 are used to fix the U-shaped upper keel 111 to the structural floor slab 300 and the lower keel 112 to the structural ground 400, ensuring horizontal alignment. Vertical double-cavity profile keels 115 are then installed at equal intervals between the upper keel 111 and the lower keel 112, secured with self-tapping screws. Horizontal double-cavity profile keels 115 are then installed at equal intervals between adjacent vertical keels 113, forming a crisscrossing grid framework. This integrated folding molding process of the double-cavity profile keels 115 and the U-shaped upper and lower keel design enhance the overall rigidity of the frame and prevent construction deformation. The expansion bolt 120 fixing method simplifies the connection with the building structure and improves installation efficiency.

[0047] Then, the sound insulation material is installed by inserting it into the middle upper cavity 115c and middle lower cavity 115d of the adjacent vertical keel 113, with both ends of the 9.5mm thick high sound insulation and sound-silencing board 130 (Class A fireproof, sound insulation ≥41dB) into the adjacent vertical keel 113 to form a continuous sound insulation barrier. Then, 35mm thick left-side glass wool 140 and right-side glass wool 150 (density 80kg / m³) are installed. 3 The soundproofing plate 130 is inserted between the left concave cavity 115a, the right concave cavity 115b and the corresponding top surface of the cavity, respectively, tightly filling the cavity space. The modular plug-in design of the soundproofing plate 130 and the left concave cavity 115a and the right concave cavity 115b effectively blocks the transmission of sound bridge. The dual-cavity structure combined with multi-material layered sound insulation significantly improves the sound insulation performance of the wall to ≥41dB. The plug-in installation does not require additional fasteners, reducing construction steps.

[0048] Next, the decorative surface layer 200 is installed. In Example 1, a 10mm cement fiberboard is used as the baseboard 210, which is fixed to the surface of the double-cavity profile keel 115 with self-tapping screws. A 4mm composite aluminum plate (25mm folded edge) is used as the outer decorative panel 220 and connected to the baseboard 210 via snap-fit ​​profile accessories 230 to form a flat outer decorative surface. In Example 2, a dry-hanging horizontal keel 221 is fixed on the double-cavity profile keel 115; an 8mm fiber rock decorative panel 222 with pre-installed hangers 223 on its back is hung on the dry-hanging horizontal keel 221 to form a seamless decorative surface layer. The two decorative surface layer schemes are suitable for different scenario requirements. Both the snap-fit ​​and dry-hanging designs enable rapid assembly, avoiding on-site cutting or complex processes. The baseboard 210 and the outer decorative panel 220 are fixed in layers to ensure the stability of the decorative layer, while the single / double-sided installation mode improves spatial adaptability.

[0049] Finally, fireproofing and sealing treatments are carried out. Fire-resistant sealant 500 is filled at the joints between the upper keel 111 and the structural floor slab 300, and between the lower keel 112 and the structural floor 400 to seal the gaps. The tightness of the insertion of the soundproofing panel 130 with the left-side glass wool 140 and the right-side glass wool 150 is checked to ensure there are no cavities causing sound leakage. The combination of Class A fire-resistant materials and the sealed cavity structure meets building fire protection codes; the sealing treatment further blocks the transmission of sound and heat, improving safety and sound insulation.

[0050] In summary, this new type of wall achieves an integrated effect of high sound insulation, strong structure, easy assembly, and flexible decoration. It is suitable for theaters, office buildings, and other scenarios with stringent acoustic and aesthetic requirements, while significantly shortening the construction cycle and reducing overall costs.

[0051] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on the utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A double-cavity prefabricated high sound insulation keel wall, comprising a sound insulation wall and a decorative surface layer, wherein the decorative surface layer is installed on both sides of the sound insulation wall, characterized in that: The soundproof wall includes: The special steel frame consists of an upper keel, a lower keel, several vertical keels, and several horizontal keels. The vertical and horizontal keels are both double-cavity profile keels. The vertical keels are fixed between the upper and lower keels at intervals, and the horizontal keels are fixed between adjacent vertical keels at intervals. The dual-cavity profile keel is integrally folded from a metal plate into an "M"-shaped structure, forming a left concave cavity, a right concave cavity, a middle upper concave cavity, and a middle lower concave cavity; Several expansion bolts are used to fix the upper keel to the structural floor slab and the lower keel to the structural ground. Several middle soundproof panels, with their two ends respectively inserted between the middle upper and middle lower recesses of adjacent double-cavity profile keels; Several pieces of left-side and right-side glass wool are inserted at both ends into the left concave cavity and the top surface of the left cavity, and the right concave cavity and the top surface of the right cavity, respectively, of the adjacent double-cavity profile keel.

2. The double-cavity prefabricated high sound insulation keel wall according to claim 1, characterized in that: The decorative surface layer includes a base plate and an outer panel. The base plate is fixed to the double-cavity profile keel by nailing, and the outer panel is fixed to the base plate by snap-on profile accessories.

3. The double-cavity prefabricated high sound insulation keel wall according to claim 2, characterized in that: The baseboard is a cement fiberboard, and the outer cladding panel is a composite aluminum plate.

4. The double-cavity prefabricated high sound insulation keel wall according to claim 1, characterized in that: The decorative surface layer includes a dry-hanging horizontal keel and a fiber rock decorative panel. The back of the fiber rock decorative panel is fixed with a hanger. The dry-hanging horizontal keel is fixed to the double-cavity profile keel. The fiber rock decorative panel is hung on the dry-hanging horizontal keel through the hanger.

5. The double-cavity prefabricated high sound insulation keel wall according to claim 4, characterized in that: The dry-hanging horizontal keel is fixed to the double-cavity profile keel by bolts.

6. The double-cavity prefabricated high sound insulation keel wall according to claim 1, characterized in that: The upper and lower concave cavities in the middle of the double-cavity profile keel are symmetrically arranged, and the left and right concave cavities are located on both sides of the "M"-shaped structure.

7. The double-cavity prefabricated high sound insulation keel wall according to claim 1, characterized in that: The metal plate of the double-cavity profile keel is integrally folded and formed by cold rolling process.

8. The double-cavity prefabricated high sound insulation keel wall according to claim 1, characterized in that: The central soundproof panel is a high-insulation soundproof panel.

9. The double-cavity prefabricated high sound insulation keel wall according to claim 1, characterized in that: The decorative surface layer can be installed on both sides or one side of the soundproof wall, while the side without the decorative surface layer is fixed only by the base plate.

10. The double-cavity prefabricated high sound insulation keel wall according to claim 1, characterized in that: Both the upper and lower keels are U-shaped metal profiles with their open ends facing the inside of the soundproof wall and connected to the building structure by expansion bolts.

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