A wall surface variable sound absorption structure

Abstract

The present application belongs to the technical field of building decoration, and specifically discloses a wall surface variable sound absorption structure, which comprises a woven mesh layer, a rotatable panel layer and a sound absorption layer. The sound absorption layer is fixedly connected to a building wall surface. The rotatable panel layer is located between the woven mesh layer and the sound absorption layer. The building wall surface is detachably connected with a support plate. The support plate is fixedly connected with a first support frame between the building wall surface and a building bottom plate. The sound absorption layer is fixedly connected to the first support frame. The rotatable panel layer is composed of a plurality of panel units. The top of the plurality of panel units is rotatably connected with a rotating shaft. The rotating shaft is fixedly connected to the support plate. The bottom of the plurality of panel units is detachably connected with a motor. The motor is detachably connected to the building bottom plate. The top end and the bottom end of the woven mesh layer are fixedly connected to the building wall surface and the building bottom plate, respectively. The opening and closing of the rotatable panel layer are controlled to control whether sound can be transmitted to the sound absorption layer, so that the variable sound absorption effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building decoration, and particularly relates to a wall surface variable sound absorption structure. BACKGROUND

[0002] Wall surface sound absorption plays an important role in reducing indoor noise and improving acoustic environment. By decorating the ceiling and surrounding walls of the room with sound absorption materials or hanging space sound absorption bodies, a part of the reflected sound in the room can be absorbed, thereby reducing the overall noise level in the room. There are various types of sound absorption materials, including glass wool, rock wool, polyester fiber sound absorption board, etc., which reduce the propagation of sound waves through different sound absorption principles. The application of sound absorption materials not only helps to improve the acoustic environment of the room, making it more quiet and comfortable, but also can be combined with indoor decoration design, meeting both aesthetic needs and sound absorption and sound insulation functions. For example, in places such as audio-visual rooms, conference rooms, cinemas, etc., which have high requirements for sound, the design of sound absorption walls usually takes into account both aesthetics and sound absorption effect.

[0003] However, in many cases such as theaters, in order to adapt to the acoustic requirements of different performance effects, the walls sometimes need to absorb sound and sometimes need to amplify sound, but the existing sound absorption structure is single in function, and after decoration, it can only simply play the role of sound absorption and sound insulation, and cannot be flexibly changed according to the performance requirements to achieve the best performance effect.

[0004] In order to solve the problem that the sound absorption structure in the prior art cannot be flexibly changed according to the performance requirements, the structure of the sound absorption structure needs to be improved, so as to solve the current technical problem. SUMMARY

[0005] The purpose of the present application is to provide a wall surface variable sound absorption structure, which can flexibly adjust whether to absorb sound according to the performance requirements, so as to achieve the best performance effect.

[0006] In order to achieve the above-mentioned purpose, the following technical scheme is adopted in the present application: a wall surface variable sound absorption structure, comprising a woven mesh layer, a rotatable panel layer and a sound absorption layer, the sound absorption layer is fixedly connected to the building wall, the rotatable panel layer is located between the woven mesh layer and the sound absorption layer, the building wall is detachably connected with a support plate, the first support frame is fixedly connected between the support plate and the building bottom plate, the sound absorption layer is fixedly connected to the first support frame, the rotatable panel layer is composed of a plurality of panel units, the top of the plurality of panel units is rotatably connected with a rotating shaft, the rotating shaft is fixedly connected to the support plate, the bottom of the plurality of panel units is detachably connected with a motor, the motor is detachably connected to the building bottom plate, and the top end and the bottom end of the woven mesh layer are fixedly connected to the building wall and the building bottom plate respectively.

[0007] By adopting the technical scheme, the opening and closing of the rotatable panel layer is controlled to control whether sound can be transmitted to the sound absorption layer, so that the effect of variable sound absorption is achieved.

[0008] To better achieve the present application, the support plate is a hot-dipped galvanized flat tube structure, and after being wrapped with a cement fiber board, it is sprayed with black matte paint.

[0009] By adopting the technical scheme, hot-dipped galvanized steel has good corrosion resistance, and by spraying black matte paint, its corrosion resistance can be further enhanced. This double protection can effectively prevent the oxidation and corrosion of the zinc layer and prolong the service life of the flat tube structure. Black matte paint has good wear resistance and can resist scratches and wear during daily use. The matte paint reduces the addition of harmful substances during production, making it more environmentally friendly. This is positive for the indoor environment and the health of the user.

[0010] To better achieve the present application, the first support frame is welded from a plurality of vertical keels and horizontal keels, and the vertical keels and horizontal keels are both U-shaped light steel structures.

[0011] By adopting the technical scheme, light steel keel is an inorganic material that does not burn and has good fire resistance; U-shaped 100 light steel keel is a lightweight material with a self-weight of only about 1 / 3 of that of traditional materials, facilitating construction and transportation; it is made of high-quality steel, has high strength, can withstand large loads, and has good moisture resistance and corrosion resistance, and will not deform or be damaged due to moisture.

[0012] To better achieve the present application, the sound absorption layer is made of glass wool board material and wrapped with black glass fiber cloth.

[0013] By adopting the technical scheme, glass wool board is a material with certain elasticity, which can reduce the vibration and solid sound transmitted by the building structure and absorb sound and reduce noise.

[0014] To better achieve the present application, the motor is detachably connected with a second support frame, the second support frame is a galvanized angle steel frame structure, and the second support frame is detachably connected to the building bottom plate.

[0015] By adopting the technical scheme, the galvanized angle steel frame structure is detachably installed on the building bottom plate by expansion bolts, and has the characteristics of convenient installation, good stability and high strength.

[0016] In order to better realize the present application, the woven mesh layer is a stainless steel woven mesh structure, and the hollow rate is greater than or equal to 60%.

[0017] By adopting the technical scheme, the stainless steel woven mesh is used to shield the surface layer, and plays a role of sound transmission and unified visual perception.

[0018] In order to better realize the present application, the top end and the bottom end of the woven mesh layer are fixedly connected with metal U-shaped clamps, the metal U-shaped clamp at the top end of the woven mesh layer is detachably connected to the building wall surface through a third support frame, and the metal U-shaped clamp at the bottom end of the woven mesh layer is detachably connected to the building bottom plate through a fourth support frame.

[0019] By adopting the technical scheme, the metal U-shaped clamp is used for installation of the woven mesh layer, and has the effects of simple operation, convenient installation and stable and reliable.

[0020] In order to better realize the present application, the third support frame and the fourth support frame are both galvanized square tube structures.

[0021] By adopting the technical scheme, the galvanized square tube structure is light and has high strength, so that the overall stability is improved.

[0022] In order to better realize the present application, the top of the third support frame is fixedly connected with a steel frame conversion layer, and the steel frame conversion layer is fixedly connected to the building top plate.

[0023] By adopting the technical scheme, the sound absorption related structure and the building are stably connected.

[0024] Beneficial effects:

[0025] The present application controls the opening and closing of the rotatable panel layer to control whether the sound can be transmitted to the sound absorption layer, thereby achieving the effect of variable sound absorption. Specifically, the motor drives all panel units to rotate, and the adjacent panel units change from collinear arrangement to parallel arrangement, at this time the sound can be transmitted to the sound absorption layer from the space between the adjacent panels and be absorbed; on the contrary, the motor drives all panel units to rotate, and the adjacent panel units change from parallel arrangement to collinear arrangement, at this time the sound is blocked when it is transmitted to the rotatable panel layer and cannot be transmitted inward, so it cannot be absorbed. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a longitudinal sectional view of the present application;

[0027] Figure 2Enlarged view of A of the present application;

[0028] Figure 3 Enlarged view of B of the present application;

[0029] Figure 4 Cross-sectional view (rotatable panel layer open state) of the present application;

[0030] Figure 5 Cross-sectional view (rotatable panel layer closed state) of the present application;

[0031] Figure 6 Cross-sectional view of a type of panel of the present application;

[0032] Figure 7 Structure view of a type of panel of the present application from one viewing angle;

[0033] Figure 8 Structure view of a type of panel of the present application from another viewing angle;

[0034] Figure 9 Cross-sectional view of a type of panel of the present application;

[0035] Figure 10 Structure view of a type of panel of the present application from one viewing angle;

[0036] Figure 11 Structure view of a type of panel of the present application from another viewing angle.

[0037] In the figure: 1, woven mesh layer; 2, rotatable panel layer; 201, panel unit; 202, a type of panel; 2021, first support column; 2022, first crossbeam; 2023, MLS diffuser, 2024, first reflecting surface; 2025, protrusion; 2026, notch; 203, a type of panel; 2031, second support column; 2032, second crossbeam; 2033, third crossbeam; 2034, paper-faced gypsum board; 2035, second reflecting surface; 3, sound-absorbing layer; 4, support plate; 5, first support frame; 501, vertical keel; 502, horizontal keel; 6, rotating shaft; 7, motor; 8, building wall surface; 9, building floor; 10, building ceiling; 11, second support frame; 12, metal U-shaped clamp; 13, third support frame; 14, fourth support frame; 15, steel frame conversion layer. DETAILED DESCRIPTION

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example

[0040] like Figure 1 - Figure 11 As shown, an angle-adjustable vertical sound-absorbing structure includes a woven mesh layer 1, a rotatable panel layer 2, and a sound-absorbing layer 3. The sound-absorbing layer 3 is fixedly connected to a building wall 8. The rotatable panel layer 2 is located between the woven mesh layer 1 and the sound-absorbing layer 3. A support plate 4 is detachably connected to the building wall 8. A first support frame 5 is fixedly connected between the support plate 4 and the building base 9. The sound-absorbing layer 3 is fixedly connected to the first support frame 5. The rotatable panel layer 2 is composed of multiple panel units 201. A rotating shaft 6 is rotatably connected to the top of each panel unit 201. The rotating shaft 6 is fixedly connected to the support plate 4. A motor 7 is detachably connected to the bottom of each panel unit 201. The motor 7 is detachably connected to the building base 9. The top and bottom ends of the woven mesh layer 1 are fixedly connected to the building wall 8 and the building base 9, respectively.

[0041] The multiple panel units 201 include a first type of panel 202 and a second type of panel 203. The first type of panel 202 and the second type of panel 203 have different shapes and are arranged at intervals. The surface of the first type of panel 202 and the second type of panel 203 are covered with a sound diffusing material.

[0042] The working principle of this invention can be summarized as follows:

[0043] This invention controls whether sound can be transmitted to the sound-absorbing layer 3 by controlling the opening and closing of the rotatable panel layer 2, thereby achieving a variable sound absorption effect. Specifically, the motor 7 drives all panel units 201 to rotate, and adjacent panel units 201 change from a collinear arrangement to a parallel arrangement. At this time, sound can be transmitted from the space between adjacent panels to the sound-absorbing layer 3 and absorbed. Conversely, when the motor 7 drives all panel units 201 to rotate, adjacent panel units 201 change from a parallel arrangement to a collinear arrangement. At this time, sound is blocked when it reaches the rotatable panel layer 2 and cannot be transmitted inward, thus it cannot be absorbed. Since the panel unit 201 includes a type 1 panel 202 and a type 2 panel 203, which have different shapes and whose surfaces are both made of sound-diffusing material, sound waves can be evenly diffused in different directions, thereby improving the coverage and uniformity of the sound.

[0044] Preferably, the support plate 4 is a 40mm x 20mm x 2mm hot-dip galvanized flat structure, wrapped with a 12mm cement fiber board, and then sprayed with black matte paint. The hot-dip galvanizing itself has good corrosion resistance, and the black matte paint can further enhance its corrosion resistance. This double protection can effectively prevent the oxidation and corrosion of the zinc layer, prolonging the service life of the flat structure. The black matte paint has good wear resistance and can resist scratches and wear during daily use. The matte paint reduces the addition of harmful substances during production, making it more environmentally friendly. This is positive for both indoor environments and user health.

[0045] Preferably, the first support frame 5 is welded from multiple vertical studs 501 and horizontal studs 502, both of which are U-shaped 100 lightweight steel studs arranged at an interval of 800mm. The lightweight steel studs are inorganic materials that do not burn, providing good fire resistance. The U-shaped 100 lightweight steel studs are lightweight, with a self-weight of only about 1 / 3 of traditional materials, making them easy to transport and install. They are made of high-quality steel, providing high strength, good moisture resistance, and corrosion resistance, and will not deform or be damaged due to moisture.

[0046] Preferably, the sound-absorbing layer 3 is 150mm thick and made of glass wool with a density of 50kg / m 3 , wrapped with black glass fiber cloth and fixed to the first support frame 5 using insulation nails. The glass wool is a material with certain elasticity, which can reduce the vibration and solid sound transmitted by the building structure, providing sound absorption and noise reduction.

[0047] Preferably, the width of both the first type of panel 202 and the second type of panel 203 is 320mm, and the thickness is 25mm to 145mm, with a surface density of 20kg / m 3 .

[0048] Preferably, the first type of panel 202 includes two first support columns 2021 arranged in parallel, each being a 30mm x 30mm x 3mm galvanized square tube structure. Between the two first support columns 2021, multiple first cross beams 2022 are connected, each being a 30mm x 30mm x 3mm galvanized angle steel structure. Through the above structure, the overall mass of the panel unit is minimized while the strength of the panel unit is effectively improved. The frame formed by the first support columns 2021 and the first cross beams 2022 is wrapped with an MLS diffuser 2023.

[0049] Preferably, the MLS diffuser 2023 has an irregular first reflective surface 2024 with multiple protrusions 2025 and notches 2026, and the width of the protrusions 2025 and notches 2026 is the same.

[0050] The MLS diffuser is designed based on the maximum length sequence (MLS) theory, which is a mathematically defined non-periodic sequence that can form a unique reflection pattern. When sound waves encounter the MLS diffuser, due to the time delay of each part of the reflected sound waves, the reflected sound waves interfere with each other, breaking the straight propagation path of the sound waves and achieving effective diffusion of sound energy.

[0051] The MLS diffuser with different thicknesses arranged in intervals can further enhance the diffusion effect of sound waves. This design can make the sound waves reflect, refract and scatter multiple times on the surface of diffusers with different thicknesses, breaking the straight propagation path of sound waves and achieving more uniform distribution of sound energy. This interval arrangement can effectively reduce sound focusing and shadowing, avoid excessive or weak sound in certain areas, and improve overall listening experience. Diffusers with different thicknesses have different reflection and diffusion characteristics for sound waves of different frequencies. Thicker diffusers are better for low-frequency sound wave diffusion, while thinner diffusers are more effective for high-frequency sound waves. By arranging diffusers with different thicknesses at intervals, effective sound wave diffusion can be achieved in a wide frequency range, thereby improving overall acoustic performance.

[0052] Preferably, the second type of panel 203 comprises two second support columns 2031 arranged in parallel, and a plurality of second cross beams 2032 and third cross beams 2033 connected between the two first support columns 2021. The second support columns 2031 and the second cross beams 2032 are both galvanized square tube structures with a size of 30mm x 30mm x 3mm, and the third cross beams 2033 are galvanized angle steel structures with a size of 30mm x 30mm x 3mm. The second support columns 2031, the second cross beams 2032 and the third cross beams 2033 are wrapped with a paper-faced gypsum board 2034, which has a second reflecting surface 2035 shaped according to the arc of the galvanized angle steel. The paper-faced gypsum board itself has certain sound insulation performance, and the arc structure can further optimize its sound insulation effect. The arc design can increase the path length of sound waves during propagation, thereby reducing sound penetration and propagation and improving sound insulation.

[0053] Preferably, the motor 7 is detachably connected with a second support frame 11, which is a galvanized angle steel frame structure with a size of 50mm x 50mm x 5mm and is detachably installed on the building floor 9 by expansion bolts, having the characteristics of convenient installation, good stability and high strength.

[0054] Preferably, the woven mesh layer 1 is a stainless steel woven mesh structure with an open area of ≥60%, which can block the surface layer and achieve uniform sound transmission and visual effect.

[0055] Preferably, the top end and the bottom end of the woven mesh layer 1 are fixedly connected with metal U-shaped clips 12, the metal U-shaped clip 12 at the top end of the woven mesh layer 1 is detachably connected to the building wall 8 through a third support frame 13, and the metal U-shaped clip 12 at the bottom end of the woven mesh layer 1 is detachably connected to the building bottom plate 9 through a fourth support frame 14. The metal woven mesh must be firmly installed; after the installation is completed, there should be no resonance noise or metal friction noise under the condition of touching and sound wave disturbance.

[0056] Preferably, the third support frame 13 and the fourth support frame 14 are both galvanized square tube structures, which are light in structure and high in strength.

[0057] Preferably, the top of the third support frame 13 is fixedly connected with a steel frame conversion layer 15, and the steel frame conversion layer 15 is fixedly connected to the building top plate 10, so as to facilitate the stable connection of the sound absorption related structure and the building.

[0058] Finally, it should be pointed out that: the above is only the preferred embodiment of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A variable sound-absorbing wall structure, comprising a woven mesh layer (1), a rotatable panel layer (2), and a sound-absorbing layer (3), characterized in that, The sound-absorbing layer (3) is fixedly connected to the building wall (8), the rotatable panel layer (2) is located between the woven mesh layer (1) and the sound-absorbing layer (3), the building wall (8) is detachably connected to a support plate (4), a first support frame (5) is fixedly connected between the support plate (4) and the building base plate (9), and the sound-absorbing layer (3) is fixedly connected to the first support frame (5). The rotatable panel layer (2) is composed of multiple panel units (201). The top of each panel unit (201) is rotatably connected to a rotating shaft (6), which is fixedly connected to the support plate (4). The bottom of each panel unit (201) is detachably connected to a motor (7). The woven mesh layer (1) is a stainless steel metal woven mesh structure with a perforation rate of ≥60%. The top and bottom ends of the woven mesh layer (1) are fixedly connected with metal U-shaped clips (12). The metal U-shaped clips (12) at the top of the woven mesh layer (1) are detachably connected to the building wall (8) through the third support frame (13). The metal U-shaped clips (12) at the bottom of the woven mesh are detachably connected to the building base plate (9) through the fourth support frame (14). The motor (7) is detachably connected to a second support frame (11), which is detachably connected to the building base plate (9). The multiple panel units (201) include a first type panel (202) and a second type panel (203). The first type panel (202) and the second type panel (203) have different shapes and are spaced apart. The surface of the first type panel (202) and the second type panel (203) are covered with sound diffusion material.

2. The variable sound-absorbing structure for a wall surface according to claim 1, characterized in that, The support plate (4) is a hot-dip galvanized flat tube structure, and after being wrapped with cement fiberboard, it is sprayed with black matte paint.

3. The variable sound-absorbing structure for a wall surface according to claim 1, characterized in that, The first support frame (5) is welded together from multiple vertical keels (501) and horizontal keels (502), both of which are U-shaped light steel structures.

4. The variable sound-absorbing structure for a wall surface according to claim 1, characterized in that, The sound-absorbing layer (3) is made of glass wool board and wrapped with black glass fiber cloth.

5. A variable sound-absorbing wall structure according to claim 1, characterized in that, The second support frame (11) is a galvanized angle steel frame structure.

6. The variable sound-absorbing structure for a wall surface according to claim 1, characterized in that, The third support frame (13) and the fourth support frame (14) are both galvanized square tube structures.

7. A variable sound-absorbing wall structure according to claim 1, characterized in that, The top of the third support frame (13) is fixedly connected to a steel frame conversion layer (15), which is fixedly connected to the building roof slab (10).

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