Bamboo sound-absorbing board and sound-absorbing wall

Abstract

The present application relates to the technical field of sound-absorbing panels, and discloses a bamboo sound-absorbing panel, comprising a bottom plate, a top plate, and a sound-absorbing cavity installed at least between the bottom plate and the top plate; the sound-absorbing cavity comprises a coating layer and bamboo tubes arranged in an array, and the coating layer covers all the bamboo tubes. The sound-absorbing panel in the present application has the characteristics of high production efficiency and short production time. The present application also discloses a sound-absorbing wall formed by splicing bamboo sound-absorbing panels.

Description

Technical Field

[0001] The present application relates to the technical field of sound-absorbing panels, and in particular to a bamboo sound-absorbing panel. Background Art

[0002] At present, sound-absorbing panels are a kind of decorative material with sound absorption and noise reduction effects. Their main purpose is to improve the indoor acoustic environment and provide a more comfortable and clear listening experience. Sound-absorbing panels achieve their sound absorption function through a variety of mechanisms, including friction energy consumption, air flow, etc. These mechanisms together convert the energy of sound waves into heat energy, thereby reducing the reflection and propagation of sound waves. Sound-absorbing panels are widely used in many fields; for example, in performing arts venues such as theaters and concert halls, sound-absorbing panels can significantly reduce sound wave reflection, optimize the sound field distribution, and ensure that the audience can clearly hear the original sound. In offices and conference rooms, sound-absorbing panels help create a quiet environment conducive to communication. In addition, sound-absorbing panels are often used in places such as schools, libraries, recording studios, cinemas, entertainment venues, commercial complexes and shopping centers to improve the acoustic environment or provide a more comfortable experience.

[0003] In terms of material selection, there are also many options for sound-absorbing panels, such as foam plastics, mineral wool boards, porous ceramics, wood materials, and bamboo boards. Each material has its own specific sound-absorbing properties and applicable scenarios. Among them, bamboo sound-absorbing panels are a special sound-absorbing material, usually including a bottom plate and a top plate, in which multiple bamboo tubes are installed, giving them a unique fiber structure and porosity. This structure allows a large number of tiny gaps and channels to exist inside the bamboo sound-absorbing panels, which can effectively absorb the energy of sound waves. When sound waves enter the sound-absorbing panels, they interact with these gaps and channels, causing the sound energy to be converted into heat energy or other forms of energy and dissipated.

[0004] Based on the structure of the existing bamboo sound-absorbing panels, during the production process, bamboo tubes are usually fixed to the bottom plate one by one by gluing, and then the top plate is glued to the end of the bamboo tube away from the bottom plate. The whole construction process is long and the efficiency is low. Utility Model Content

[0005] In a first aspect, the present application provides a bamboo sound-absorbing board, which can not only maintain the sound-absorbing effect of the sound-absorbing board, but also shorten the production cycle of the bamboo sound-absorbing board and improve the production efficiency.

[0006] This application adopts the following technical solutions:

[0007] A bamboo sound-absorbing board comprises a bottom plate, a top plate, and a sound-absorbing cavity portion installed at least between the bottom plate and the top plate; the sound-absorbing cavity portion comprises a covering layer and bamboo tubes arranged in an array, and the covering layer covers all the bamboo tubes.

[0008] By adopting the above technical solution, the bamboo sound-absorbing board is divided into three parts: a bottom plate, a top plate and a sound-absorbing cavity. After the bamboo tube array is set, it is covered by a covering layer, so that the sound-absorbing cavity becomes a whole. In the production of the bamboo sound-absorbing board, the sound-absorbing cavity can be produced separately, and finally, it is only necessary to bond the entire sound-absorbing cavity between the bottom plate and the top plate, thereby greatly improving the production efficiency.

[0009] Optionally, at least one of the bottom plate and the top plate is provided with a side frame, and the side frame is arranged along the circumference of the sound absorbing cavity portion to form an accommodating space for accommodating the sound absorbing cavity portion.

[0010] By adopting the above technical solution, the side frame is installed on the bottom plate or the top plate, or both are installed with side frames. Under the action of the side frame, the stability of the connection between the top plate and the bottom plate is improved, and the stability of the sound absorbing cavity is also improved.

[0011] Optionally, sound absorbing holes are provided on the top plate at intervals.

[0012] By adopting the above technical solution, sound absorbing holes are opened on the top plate, so that the sound can be more easily transmitted to the sound absorbing cavity for sound absorption and energy dissipation, thereby improving the sound absorption effect of the bamboo sound absorbing board.

[0013] Optionally, the covering layer is selected from one of brown net, cotton cloth and chemical fiber cloth.

[0014] By adopting the above technical solution, the cost is low and all the bamboo tubes can be easily wrapped and bonded. In addition, the structure itself also has certain sound absorption and energy dissipation effects, thereby further improving the effect of the bamboo sound-absorbing board.

[0015] Optionally, there are multiple sound absorbing cavity parts between the top plate and the bottom plate, and the diameters of the bamboo tubes in adjacent sound absorbing cavity parts are different.

[0016] Optionally, the diameters of adjacent bamboo tubes in the sound absorbing cavity are different.

[0017] By adopting the above technical solution, a plurality of sound-absorbing cavity parts are provided between the bottom plate and the top plate, and the diameters of the bamboo tubes in adjacent sound-absorbing cavity parts are different. The diameters of the bamboo tubes correspond to different low and high frequency sounds. Therefore, by combining bamboo tubes of different diameters, a more flexible sound-absorbing effect can be achieved.

[0018] Optionally, the side walls of the bamboo tube are provided with bonding grooves, and the sound absorbing cavity portion further includes a bonding rod, and the bonding rod is simultaneously inserted between two adjacent bonding grooves.

[0019] By adopting the above technical solution, bonding grooves are opened on the side walls of the bamboo tubes. When the bamboo tubes are connected together, after glue is coated on the surface of the bonding rod, the bonding rod is simultaneously inserted between two adjacent bonding grooves, thereby bonding the two adjacent bamboo tubes together, thereby improving the stability of the bamboo tubes after being connected together.

[0020] In a second aspect, the present application provides a sound-absorbing wall.

[0021] A sound-absorbing wall is formed by splicing the bamboo sound-absorbing panels in the above scheme.

[0022] By adopting the above technical solution, the sound-absorbing wall is made of bamboo sound-absorbing panels, has good sound-absorbing effect, and can be applied to places requiring good speech clarity, such as conference rooms, classrooms, and theaters.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. In the present application, the sound-absorbing cavity part is first produced independently. In the production of the bamboo sound-absorbing board, the sound-absorbing cavity part can be installed between the bottom plate and the top plate. The independent production process can shorten the production time and improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the structure of Example 1 of the present application;

[0026] Figure 2 is an exploded schematic diagram of the top plate in Example 1 of the present application;

[0027] Figure 3 is a schematic cross-sectional view of the sound absorbing cavity portion in Example 1 of the present application;

[0028] Figure 4 is a schematic diagram of the sound absorbing cavity portion in Example 2 of the present application;

[0029] Figure 5 is a schematic diagram of the sound absorbing cavity portion in Example 3 of the present application;

[0030] Figure 6 is a schematic diagram of the sound absorbing cavity portion in Example 4 of the present application;

[0031] Figure 7 yes Figure 6 A magnified schematic diagram of center A.

[0032] Explanation of the reference numerals: 1. bottom plate; 2. top plate; 3. sound-absorbing cavity; 31. covering layer; 32. bamboo tube; 4. side frame; 5. sound-absorbing hole; 6. accommodation space; 7. bonding groove; 8. bonding rod. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-7 This application is described in further detail.

[0034] Example 1

[0035] The present application embodiment discloses a bamboo sound-absorbing board. Figure 1 and Figure 2 The bamboo sound-absorbing board includes a bottom plate 1, a top plate 2 and a sound-absorbing cavity 3. The sound-absorbing cavity 3 is installed between the bottom plate 1 and the top plate 2, and at least one sound-absorbing cavity 3 is installed between the bottom plate 1 and the top plate 2. In order to facilitate understanding of the solution of the present application, in this embodiment, four sound-absorbing cavity 3 are provided, and are evenly arranged between the top plate 2 and the bottom plate 1.

[0036] Reference Figure 2 and Figure 3 The sound-absorbing cavity 3 includes a coating layer 31 and a plurality of bamboo tubes 32 arranged in an array. Adjacent bamboo tubes 32 are bonded together by glue, and then all bamboo tubes 32 are coated together by the coating layer 31, and the joints of the coating layer 31 are bonded and fixed. The sound-absorbing cavity 3 and the bottom plate 1 and the top plate 2 are then bonded together to prepare a bamboo sound-absorbing board. The production of the sound-absorbing cavity 3 and the production of the bamboo sound-absorbing board can be independent of each other, so that the production time of the bamboo sound-absorbing board can be shortened and the production efficiency can be higher when preparing the bamboo sound-absorbing board.

[0037] The covering layer 31 is selected from one of brown net, cotton cloth, and chemical fiber cloth. The fiber structure inside it also has a sound-absorbing effect to a certain extent. The combination with the bamboo tube 32 can better provide the sound-absorbing effect. Further, in order to improve the sound-absorbing effect of the bamboo sound-absorbing board, sound-absorbing holes 5 are opened on the top plate 2. The sound-absorbing holes 5 are distributed in an array on the top plate 2, and the aperture of the sound-absorbing holes 5 is set according to the actual situation. Under the action of the sound-absorbing holes 5, the sound can be better transmitted to the sound-absorbing cavity part 3, and then the sound absorption and energy dissipation are carried out, thereby improving the sound absorption effect.

[0038] In order to improve the stability of the bamboo sound-absorbing board, a side frame 4 is fixed on the side of the bottom plate 1 facing the top plate 2, and the side frame 4 is arranged along the circumference of the bottom plate 1. The side frame 4 is bonded to the bottom plate 1, and the side frame 4 encloses a receiving space 6, and the sound-absorbing cavity 3 is installed in the receiving space 6. When the top plate 2 is bonded to the sound-absorbing cavity 3, the side of the side frame 4 away from the bottom plate 1 is also bonded to the top plate 2. Under the action of the side frame 4, the stability of the sound-absorbing board is improved. In other embodiments, the side frame 4 can also be installed on the top plate 2; or, the side frame 4 is installed on both the bottom plate 1 and the top plate 2. In this case, when the bottom plate 1 and the top plate 2 are connected, the side frames 4 on the bottom plate 1 and the top plate 2 are bonded together.

[0039] The implementation principle of a bamboo sound-absorbing board in an embodiment of the present application is as follows: the sound-absorbing cavity part 3 is prepared in an independent production process. In the production of the sound-absorbing board, the cavity is glued together with the bottom plate 1 and the top plate 2 by glue, and the production can be completed, which shortens the production time and improves the production efficiency.

[0040] Example 2

[0041] The difference between this embodiment and embodiment 1 is that, Figure 4 , the four sound absorbing cavities 3 are mutually abutted. In this embodiment, the diameters of the bamboo tubes 32 in the adjacent sound absorbing cavities 3 are different. The bamboo tubes 32 with large diameters are conducive to absorbing low-frequency sounds, such as 8 cm, 9 cm or 10 cm; the bamboo tubes 32 with small diameters are conducive to absorbing high-frequency sounds, such as 4 cm. The diameters of the bamboo tubes 32 in the sound absorbing cavities 3 between the top plate 2 and the bottom plate 1 are different, so that the sound absorbing effects of different frequencies can be more flexibly adjusted, and the applicability is better.

[0042] Example 3

[0043] The difference between this embodiment and embodiment 1 is that, Figure 5 The four sound absorbing cavity portions 3 are abutted against each other. In this embodiment, in the same sound absorbing cavity portion 3, the diameters of adjacent bamboo tubes 32 are different. The sound absorbing cavity portion 3 formed by the bamboo tubes 32 with different diameters has better adaptability and has sound absorption effect on both high-frequency and low-frequency sounds.

[0044] Example 4

[0045] The difference between this embodiment and embodiment 1 is that, Figure 6 and Figure 7 The sound absorbing cavity part 3 in this embodiment also includes a bonding rod 8, and a bonding groove 7 is provided on the side wall of the bamboo tube 32. There are four bonding grooves 7 evenly arranged along the circumference of the bamboo tube 32. When the bamboo tubes 32 abut against each other, the bonding grooves 7 of adjacent bamboo tubes 32 can abut against each other. The bonding rod 8 can be inserted into two bonding grooves 7, thereby connecting adjacent bamboo tubes 32 together. And the bonding rod 8 can be coated with glue, and then inserted into the bonding groove 7, thereby greatly improving the stability of the bamboo tubes 32 when connected together. The bamboo tubes 32 are directly bonded together, and the abutment surface between the bamboo tubes 32 is small, and the connecting force is small. However, the scheme of this embodiment is connected through the bonding rod 8, and the contact surface is greatly improved, thereby making the connection stability of the bamboo tubes 32 better.

[0046] Example 5

[0047] This embodiment discloses a sound-absorbing wall, which is formed by splicing the bamboo sound-absorbing panel array in Embodiment 1.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bamboo sound-absorbing board, characterized in that: The invention comprises a bottom plate (1), a top plate (2), and a sound absorbing cavity portion (3) installed at least between the bottom plate (1) and the top plate (2); the sound absorbing cavity portion (3) comprises a coating layer (31) and bamboo tubes (32) arranged in an array, and the coating layer (31) covers all the bamboo tubes (32).

2. The bamboo sound-absorbing board according to claim 1, characterized in that: At least one of the bottom plate (1) and the top plate (2) is provided with a side frame (4), and the side frame (4) is arranged along the circumference of the sound absorbing cavity portion (3) to form a receiving space (6) for receiving the sound absorbing cavity portion (3).

3. The bamboo sound-absorbing board according to claim 1, characterized in that: Sound absorbing holes (5) are provided on the top plate (2) at intervals.

4. The bamboo sound-absorbing board according to claim 2, characterized in that: The coating layer (31) is selected from one of brown net, cotton cloth and chemical fiber cloth.

5. The bamboo sound-absorbing board according to claim 1, characterized in that: There are a plurality of sound absorbing cavity parts (3) between the top plate (2) and the bottom plate (1), and the diameters of the bamboo tubes (32) in adjacent sound absorbing cavity parts (3) are different.

6. The bamboo sound-absorbing board according to claim 1, characterized in that: The diameters of adjacent bamboo tubes (32) in the sound absorbing cavity portion (3) are different.

7. The bamboo sound-absorbing board according to claim 2, characterized in that: The side walls of the bamboo tube (32) are each provided with an adhesive groove (7), and the sound absorbing cavity portion (3) further comprises an adhesive rod (8), wherein the adhesive rod (8) is inserted between two adjacent adhesive grooves (7) at the same time.

8. A sound-absorbing wall, characterized in that: It is formed by splicing the bamboo sound-absorbing panels described in any one of claims 1 to 7.

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