A prefabricated soundproof wall
By filling the keel frame with sound-insulating material and using a detachable structure of lightweight keel and exterior wall panel components, the problem of poor sound insulation in prefabricated walls is solved, achieving efficient sound insulation and convenient construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING CHENGJIANQI CONSTRUCT ENG CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-09
AI Technical Summary
The existing prefabricated wall system has poor sound insulation, especially when using sound insulation pads, it is difficult to achieve a strong sound insulation effect. In addition, the traditional construction process is complicated and inefficient.
The system uses a keel frame with cavities filled with sound-insulating material, combined with lightweight keel and exterior wall panel components, connected by a detachable structure to form a soundproof wall, enhancing structural stability and sound insulation performance.
It improves the sound insulation performance of prefabricated walls, simplifies the construction process, enhances assembly convenience and stability, and reduces sound transmission performance.
Smart Images

Figure CN224338450U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building construction, and in particular to a prefabricated soundproof wall. Background Technology
[0002] In the construction industry, besides building walls on-site, wall panels can also be prefabricated in factories and then assembled on-site. This method differs from traditional construction methods, which involve a large amount of on-site work. By transferring the work to the factory, it greatly reduces on-site construction time and improves construction efficiency, and is therefore increasingly widely used in the modern building manufacturing industry.
[0003] Existing prefabricated walls are mainly assembled using a keel frame, baseboard, and fixing bolts. The baseboard is mostly a simple plywood structure that lacks sound insulation. To improve sound insulation, sound-insulating pads are typically added behind the baseboard, or sound-insulating materials are used directly on the baseboard, but these methods generally produce poor sound insulation results.
[0004] Regarding the aforementioned technologies, the inventors believe that due to the influence of the construction process, the sound insulation pads are small in size and therefore difficult to achieve a strong sound insulation effect. Utility Model Content
[0005] In order to improve the sound insulation performance of prefabricated walls, this application provides a prefabricated soundproof wall.
[0006] The prefabricated soundproof wall provided in this application adopts the following technical solution:
[0007] A prefabricated soundproof wall includes an inner wall body and an outer wall panel assembly installed on the inner wall body; the inner wall body includes a keel frame; the keel frame has a filling cavity extending through the front and rear sides, and the keel frame is fitted with two side panels for respectively covering the openings on both sides of the filling cavity; the filling cavity is filled with sound-insulating material; the outer wall panel assembly includes a lightweight keel installed on the keel frame and pressing the side panels against the keel frame.
[0008] By adopting the above technical solution, a filling cavity is set inside the keel frame, and the filling cavity is filled with sound insulation material, so that the main body of the inner wall has good sound insulation performance. The soundproof wall is composed of a keel frame, sound insulation material, side panels and outer wall panel components, which eliminates the need for traditional brick stacking and facilitates assembly and disassembly.
[0009] Optionally, the keel frame has an arrangement groove on the outer edge of the opening of the filling cavity for arranging the side panel.
[0010] By adopting the above technical solution, the side panel can be embedded in the arrangement groove, which facilitates the installation and positioning of the side panel, restricts the displacement of the side panel, and also facilitates subsequent fixation with lightweight keel, thereby enhancing the structural stability.
[0011] Optionally, the keel frame includes an upper keel that is attached to the floor slab, a lower keel that is attached to the ground, and a side keel that connects the ends of the upper keel and the lower keel; the upper keel is detachably installed on the side keel; the lower keel is detachably installed on the side keel.
[0012] By adopting the above technical solution, the upper keel attached to the floor slab, the lower keel attached to the ground, and the side keel connecting the ends of the upper and lower keels are connected by a detachable structure, which realizes that the keel frame can be flexibly assembled and disassembled.
[0013] Optionally, the upper keel has an upper cavity arranged along the length direction and open at the lower side; the lower keel has a lower cavity arranged along the length direction and open at the upper side; the side keel has a side cavity arranged along the length direction and open at the side; the upper cavity, the lower cavity and the side cavity are all filled with sound insulation material.
[0014] By adopting the above technical solution, the upper cavity of the upper keel, the lower cavity of the lower keel, and the side cavities of the left and right side keels are all filled with sound-insulating material. The increased volume of the sound-insulating material enhances the sound insulation performance. The designed cavity structure reduces the thickness of the outer wall of the keel, decreases the thickness of the sound-conducting part, reduces the sound transmission performance of the keel, and further enhances the sound insulation effect.
[0015] Optionally, the two ends of the lightweight keel can be detachably installed on the two side keels, and the number of lightweight keels is not less than three, and the lightweight keels are arranged at intervals along the height direction.
[0016] By adopting the above technical solution, a detachable structure is used to connect the lightweight keel and the side keel, which facilitates the assembly and disassembly of the soundproof wall. Setting at least three lightweight keels spaced apart along the height direction can more firmly press the side panels against the keel frame, improving the overall structural stability of the prefabricated soundproof wall.
[0017] Optionally, the exterior wall panel assembly further includes a limiting clip installed on the lightweight keel and a decorative wall panel installed on the limiting clip; the limiting clip has a first arrangement groove for arranging the decorative wall panel.
[0018] By adopting the above technical solution, the exterior wall panel assembly includes a limiting clip installed on a lightweight keel and a decorative wall panel installed on the limiting clip. The decorative wall panel is arranged in the first arrangement groove of the limiting clip, which reduces the probability of the decorative wall panel falling off and enhances the stability of the exterior wall panel assembly.
[0019] Optionally, the limiting clip includes a bottom limiting clip located at the bottommost side and an intermediate limiting clip located above the bottom limiting clip, the intermediate limiting clip having a second arrangement groove for arranging the lower decorative wall panel along its upper edge.
[0020] By adopting the above technical solution, the second arrangement slot of the intermediate limiting clip can be used to arrange decorative wall panels. It works in conjunction with the first arrangement slot of the adjacent intermediate limiting clip, so that the decorative wall panels can be clipped in the middle, which facilitates the installation and positioning of the decorative wall panels and improves the assembly convenience and stability of the prefabricated soundproof wall.
[0021] Optionally, a T-shaped support groove is formed between two decorative wall panels at the same horizontal height, extending through the upper and lower surfaces, and a side limiting member is provided between the two decorative wall panels, having an installation plate installed on the lightweight keel and a T-shaped limiting part arranged in the T-shaped support groove.
[0022] By adopting the above technical solution, a side limiting component is arranged in the T-shaped support groove between two decorative wall panels of the same height, which fixes the decorative wall panel in the groove of the middle limiting clip, reducing the possibility of the decorative wall panel falling off and improving the structural strength of the exterior wall panel assembly.
[0023] Optionally, the T-shaped support groove includes a first groove formed in one of the decorative wall panels and a second groove formed in another of the decorative wall panels.
[0024] By adopting the above technical solution, the first and second grooves set between the contact surfaces of two adjacent decorative wall panels can be spliced into a T-shaped support groove, which facilitates the arrangement of side limiting components.
[0025] In summary, this application includes at least one of the following beneficial technical effects:
[0026] 1. A prefabricated soundproof wall, which effectively improves the sound insulation effect of the soundproof wall and enhances the sound insulation performance of the wall by filling the filling cavity of the keel frame with sound insulation material;
[0027] 2. By setting up a keel frame, sound insulation material, side panels and exterior wall panel components, the assembly and disassembly of the soundproof wall are facilitated, improving the assembly convenience and stability of the prefabricated soundproof wall;
[0028] 3. By setting an upper cavity in the upper keel, a lower cavity in the lower keel, and a side cavity in the side keel, and filling them with sound insulation material, the thickness of the outer wall of the keel is reduced, the volume of the sound insulation material is increased, the sound transmission performance of the keel is reduced, and the sound insulation effect is further enhanced. Attached Figure Description
[0029] Figure 1This is a schematic diagram of the vertical cross-sectional structure of the soundproof wall in the embodiments of this application.
[0030] Figure 2 This is a schematic diagram of the keel frame structure in an embodiment of this application.
[0031] Figure 3 This is an embodiment of the present application. Figure 1 A magnified view of a portion of point A in the middle.
[0032] Figure 4 This is a schematic diagram of the cross-sectional structure of the soundproof wall in an embodiment of this application.
[0033] Figure 5 This is an embodiment of the present application. Figure 4 A magnified view of a portion of point B in the middle.
[0034] Explanation of reference numerals in the attached drawings: 1. Main body of interior wall; 11. Keel frame; 111. Upper keel; 112. Lower keel; 113. Side keel; 114. Arrangement groove; 12. Side panel; 13. Sound insulation material; 2. Exterior wall panel assembly; 21. Lightweight keel; 22. Limiting clip; 221. Bottom limiting clip; 222. Middle limiting clip; 2221. First arrangement groove; 2222. Second arrangement groove; 23. Decorative wall panel; 231. First groove; 232. Second groove; 233. Mounting plate; 234. T-shaped limiting part. Detailed Implementation
[0035] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0036] This application discloses a prefabricated soundproof wall. (Refer to...) Figure 1 A prefabricated soundproof wall includes an inner wall body 1 and an outer wall panel assembly 2 installed on the inner wall body 1. The inner wall body 1 includes a keel frame 11, a filling cavity penetrating the front and rear sides of the keel frame 11, side panels 12 covering the openings on both sides of the filling cavity, and sound insulation material 13 filling the filling cavity. The outer wall panel assembly 2 includes a lightweight keel 21 installed on the keel frame 11 and pressing the side panels 12 against the keel frame 11, a limiting clip 22 installed on the lightweight keel 21, and a decorative wall panel 23 installed on the limiting clip 22. In this embodiment, a set of side panels 12 and an outer wall panel assembly 2 are provided on both sides of the inner wall body 1.
[0037] Reference Figure 1 and Figure 2The keel frame 11 includes an upper keel 111, a lower keel 112, and side keels 113. The upper keel 111 is attached to the floor slab, and its upper surface is fixed to the floor slab using expansion bolts. The lower keel 112 is attached to the ground, and its lower surface is fixed to the ground using expansion bolts. The upper keel 111, lower keel 112, and side keels 113 are all made of C-shaped steel, such that the upper keel 111 has an upper cavity with an opening at the bottom along its length, the lower keel 112 has a lower cavity with an opening at the top along its length, and the side keel 113 has a side cavity with an opening at the side along its length. The upper cavity of the upper keel 111, the lower cavity of the lower keel 112, and the side cavity of the side keel 113 are all connected to a filling cavity and filled with sound-insulating material 13.
[0038] Reference Figure 2 The upper keel 111 is detachably installed on the side keel 113. The top ends of the two side keels 113 are respectively fitted onto the outer ends of the upper keel 111, and the upper keel 111 and the side keels 113 are locked together by screws. The lower keel 112 is detachably installed on the side keel 113. The bottom ends of the two side keels 113 are respectively fitted onto the outer ends of the lower keel 112, and the lower keel 112 and the side keels 113 are locked together by screws.
[0039] Reference Figure 1 and Figure 2 To enhance the installation strength of the side panel 12 on the keel frame 11, the keel frame 11 has an arrangement groove 114 for arranging the side panel 12 at the outer edge of the opening of the filling cavity. The arrangement groove 114 is formed by an L-shaped flange provided on the inner edge of the keel frame 11.
[0040] Reference Figure 1 and Figure 3 Two side panels 12 are embedded in the surrounding arrangement grooves 114 formed by the keel frame 11. The edges of the side panels 12 are fitted with the inner surface of the arrangement grooves 114 to reduce gaps between them and the keel frame 11. The thickness of the side panels 12 is adapted to the thickness of the arrangement grooves 114. The two ends of the lightweight keel 21 are fixed to the side keels 113 on both sides by screws. The end surface of the lightweight keel 21 is fitted with the outer surface of the side panels 12 so that the lightweight keel 21 can lock the side panels 12 in the arrangement grooves 114. The number of lightweight keels 21 in the exterior wall panel assembly 2 is not less than three, and the lightweight keels 21 are spaced apart along the height direction. In this embodiment, the number of lightweight keels 21 in the exterior wall panel assembly 2 is four.
[0041] Reference Figure 1 and Figure 3The limiting clip 22 includes a bottom limiting clip 221 located at the bottommost side and a middle limiting clip 222 located above the bottom limiting clip 221. Both the bottom limiting clip 221 and the middle limiting clip 222 are mounted on corresponding lightweight keel 21, and both have a first arrangement groove 2221 for supporting the arrangement of the decorative wall panel 23. The width of the first arrangement groove 2221 is the same as the thickness of the decorative wall panel 23. The middle limiting clip 222 has a second arrangement groove 2222 for arranging the upper edge of the lower decorative wall panel 23. In this embodiment, both the bottom limiting clip 221 and the middle limiting clip 222 are made of lightweight aluminum profiles.
[0042] Reference Figure 4 and Figure 5 A side reinforcement structure for supporting the side edges of two adjacent decorative wall panels 23 at the same height is provided. The side reinforcement structure includes a first groove 231 formed in one decorative wall panel 23, a second groove 232 formed in the other decorative wall panel 23, and a side limiting member installed between the two decorative wall panels 23. The first groove 231 and the second groove 232 are joined to form a T-shaped support groove. The side limiting member has a mounting plate 233 installed on a lightweight keel 21 and a T-shaped limiting part 234 arranged in the T-shaped support groove. The mounting plate 233 is locked to the lightweight keel 21 by screws.
[0043] Combination Figures 1 to 5 The implementation principle of this application embodiment is as follows: The detachable keel frame 11, sound insulation material 13, side panels 12, and exterior wall panel assembly 2 facilitate quick assembly and disassembly, reducing transportation and installation costs. The sound insulation material 13 is filled into the filling cavity and multiple cavities of the keel frame 11, improving the sound insulation performance of the wall. The lightweight keel 21 and limiting clips 22 provided in the exterior wall panel assembly 2 make the entire soundproof wall structure more stable. The decorative wall panel 23 not only serves an aesthetic purpose but also further enhances the sound insulation effect, broadening the application scenarios of the prefabricated soundproof wall.
[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A fabricated soundproof wall, characterized by, The system includes an inner wall body (1) and an outer wall panel assembly (2) installed on the inner wall body (1); the inner wall body (1) includes a keel frame (11); the keel frame (11) has a filling cavity extending through the front and rear sides, and the keel frame (11) is equipped with two side panels (12) for covering the openings on both sides of the filling cavity; the filling cavity is filled with sound insulation material (13); the outer wall panel assembly (2) includes a lightweight keel (21) installed on the keel frame (11) and pressing the side panels (12) against the keel frame (11).
2. The prefabricated soundproof wall according to claim 1, characterized in that, The keel frame (11) has an arrangement slot (114) on the outer edge of the opening of the filling cavity for arranging the side panel (12).
3. The prefabricated soundproof wall according to claim 1, characterized in that, The keel frame (11) includes an upper keel (111) attached to the floor slab, a lower keel (112) attached to the ground, and a side keel (113) connecting the ends of the upper keel (111) and the lower keel (112); the upper keel (111) is detachably installed on the side keel (113); the lower keel (112) is detachably installed on the side keel (113).
4. A prefabricated soundproof wall according to claim 3, characterized in that, The upper keel (111) has an upper cavity arranged along the length direction and open on the lower side; the lower keel (112) has a lower cavity arranged along the length direction and open on the upper side; the side keel (113) has a side cavity arranged along the length direction and open on the side; the upper cavity, the lower cavity and the side cavity are all filled with sound insulation material (13).
5. A prefabricated soundproof wall according to claim 4, characterized in that, The two ends of the lightweight keel (21) are detachably installed on the two side keels (113), and the number of lightweight keels (21) is not less than three. The lightweight keels (21) are arranged at intervals along the height direction.
6. A prefabricated soundproof wall according to claim 1, characterized in that, The exterior wall panel assembly (2) further includes a limiting clip (22) installed on the lightweight keel (21) and a decorative wall panel (23) installed on the limiting clip (22); the limiting clip (22) has a first arrangement groove (2221) for arranging the decorative wall panel (23).
7. A prefabricated soundproof wall according to claim 6, characterized in that, The limiting clip (22) includes a bottom limiting clip (221) located at the bottommost side and an intermediate limiting clip (222) located above the bottom limiting clip (221). The intermediate limiting clip (222) has a second arrangement groove (2222) for arranging the upper edge of the decorative wall panel (23) on the lower side.
8. A prefabricated soundproof wall according to claim 6, characterized in that, A T-shaped support groove is formed between two decorative wall panels (23) at the same horizontal height, extending through the upper and lower surfaces. A side limiting member is provided between the two decorative wall panels (23), which has an installation plate (233) installed on the lightweight keel (21) and a T-shaped limiting part (234) arranged in the T-shaped support groove.
9. A prefabricated soundproof wall according to claim 8, characterized in that, The T-shaped support groove includes a first groove (231) formed in the decorative wall panel (23) and a second groove (232) formed in another decorative wall panel (23).