CN219952313U

CN219952313U - Bamboo charcoal fiber multilayer composite acoustic board

Info

Publication number: CN219952313U
Application number: CN202321252570.0U
Authority: CN
Inventors: 王耀广; 楼益华
Original assignee: Shanghai Weishiba Tools Co ltd
Current assignee: Shanghai Weishiba Tools Co ltd
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-11-03
Anticipated expiration: 2033-05-22

Abstract

The utility model relates to a bamboo charcoal fiber composite board, in particular to a bamboo charcoal fiber multilayer composite sound-absorbing board, which comprises a sound-absorbing layer and a base layer, wherein the sound-absorbing layer is arranged at the top of the base layer and is formed by fixedly bonding the two layers, the sound-absorbing layer comprises a top plate, a sound-absorbing part and grooves, and the grooves are uniformly formed in the top surface of the top plate; according to the utility model, the sound wave is blocked by the double-layer composite structure through the sound absorption layer and the base layer, meanwhile, the sound wave is transmitted through the cavity formed in the sound absorption part, so that the transmission capacity of the sound wave is weakened, the effect of blocking the sound wave is realized, the reflecting part is arranged in the groove, the sound wave enters the cavity after being reflected by the reflecting part, and the sound wave is continuously refracted by the protruding part on the supporting plate, so that the transmission capacity of the sound wave is further weakened, and the sound absorption effect is further realized.

Description

Bamboo charcoal fiber multilayer composite acoustic board

Technical Field

The utility model relates to a bamboo charcoal fiber composite board, in particular to a bamboo charcoal fiber multilayer composite sound-absorbing board.

Background

The bamboo charcoal fiber is made from moso bamboo through a new calcining process and a new calcining technology with pure oxygen high temperature and nitrogen blocking delay, and the bamboo charcoal fiber board is made from pure natural moso bamboo, has the advantages of good moisture resistance and waterproof performance, and simultaneously has the effects of heat preservation and heat insulation.

However, as the requirements of people on the quality of household life are higher and higher, the quietness and privacy in the household life are paid more attention to, and the requirements on household boards are higher, and how to improve the sound absorption of the existing bamboo charcoal fiber board is an important direction for improving the existing bamboo charcoal fiber board.

Disclosure of Invention

Based on the expression, the utility model provides a bamboo charcoal fiber multi-layer composite sound-absorbing board for solving the problem that the sound-absorbing performance of the traditional bamboo charcoal fiber board is not ideal.

The technical scheme for solving the technical problems is as follows: a bamboo charcoal fiber multi-layer composite sound-absorbing board comprises a sound-absorbing layer and a base layer,

the sound absorption layer is arranged on the top of the base layer, and the sound absorption layer and the base layer are fixedly bonded;

the sound absorption layer comprises a top plate, a sound absorption part and a groove;

the grooves are uniformly formed in the top surface of the top plate, the sound absorbing parts are uniformly arranged on the top surface of the top plate, and the grooves and the sound absorbing parts are arranged at intervals.

The sound absorbing part comprises a baffle, a cavity and a perforation, wherein the cavity is formed in the baffle, the perforation is formed in the side wall of the baffle, the perforation is communicated with the middle of the baffle from the left side and the right side of the baffle and is communicated with the cavity in the baffle, and the baffle and the top plate are integrally formed and are all made of bamboo charcoal fiber plates.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, inhale the sound portion still including backup pad and bellying, the top surface of backup pad and the top fixed connection of cavity inner wall, and the left and right sides of backup pad and the left and right sides fixed connection of cavity inner wall, just the cross section of backup pad sets up to the font of left and right sides outside expansion, utilizes the backup pad to play the supporting role to the cavity, has improved the compressive capacity of cavity.

The quantity of protruding portion is a plurality of, and a plurality of protruding portion evenly sets up on the inner wall of cavity and the left and right sides of backup pad, protruding portion global design becomes the hemisphere, protruding portion is the bamboo charcoal fibrous piece.

Further, the sound absorbing layer further comprises a reflecting portion, the reflecting portion is mounted at the bottom of the inner wall of the groove, the cross section of the reflecting portion is designed into an isosceles triangle, inclined planes on two sides of the reflecting portion correspond to the through holes on the partition plate, and the reflecting portion is a bamboo charcoal fiber block.

Further, the sound absorbing layer further comprises a sound absorbing piece, a hollow chamber is formed in the top plate, and the sound absorbing piece is arranged in the hollow chamber.

Further, the foundation layer comprises a substrate and bottom blocks, the number of the bottom blocks is a plurality of, the bottom blocks are uniformly arranged on the bottom surface of the substrate, and the arrangement positions of the bottom blocks are in one-to-one correspondence with the arrangement positions of the grooves.

Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:

1. according to the utility model, the sound wave is blocked by the double-layer composite structure through the sound absorption layer and the base layer, meanwhile, the sound wave is transmitted through the cavity formed in the sound absorption part, so that the transmission capacity of the sound wave is weakened, the effect of blocking the sound wave is realized, the reflecting part is arranged in the groove, the sound wave enters the cavity after being reflected by the reflecting part, and the sound wave is continuously refracted by the protruding part on the supporting plate, so that the transmission capacity of the sound wave is further weakened, and the sound absorption effect is further realized.

2. Through installing the backup pad in the inner wall of cavity, the top that utilizes the backup pad is connected with the top of cavity inner wall, and the reinforcing roof is inhaling the compressive capacity of sound portion, and utilize the sound cotton of inhaling of roof cavity room packing, utilize to inhale the inside porous structure of sound cotton, absorb the sound wave, let the sound wave inhale the inside of sound cotton and refract and weaken, and then play the effect of digesting the sound wave.

Drawings

Fig. 1 is a schematic structural view of a bamboo charcoal fiber multi-layer composite sound-absorbing board according to an embodiment of the present utility model;

FIG. 2 is an enlarged partial schematic view of the area A in FIG. 1;

FIG. 3 is a schematic view of the overall bottom perspective of the present utility model;

fig. 4 is a schematic perspective view of a support plate according to an embodiment of the utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a sound absorbing layer; 101. a top plate; 102. a sound absorbing section; 1021. a partition plate; 1022. a cavity; 1023. a support plate; 1024. a boss; 1025. perforating; 103. a groove; 104. a reflection section; 105. a sound absorbing member; 2. a base layer; 201. a substrate; 202. a bottom block.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Embodiments of the utility model are illustrated in the accompanying drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

It should be noted that, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, or that the technical product is conventionally put in place when used, merely for convenience in describing the present technology and simplifying the description, and do not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present technology.

In the description of the present technology, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in the art will be understood in a specific manner by those of ordinary skill in the art.

Referring to fig. 1 and 2, a bamboo charcoal fiber multi-layer composite sound-absorbing board comprises a sound-absorbing layer 1 and a base layer 2,

the sound absorption layer 1 is arranged on the top of the base layer 2;

the sound-absorbing layer 1 includes a top plate 101, a sound-absorbing portion 102, and a groove 103;

the grooves 103 are uniformly formed on the top surface of the top plate 101, the sound absorbing portions 102 are uniformly formed on the top surface of the top plate 101, and the grooves 103 and the sound absorbing portions 102 are arranged at intervals.

The strength of the whole composite board is enhanced by compounding the sound absorption layer 1 and the base layer 2, and the sound absorption property of the composite board can be improved by arranging the sound absorption layer 1.

Referring to fig. 1 and 2, sound absorbing portion 102 of the present embodiment includes a partition 1021, a cavity 1022 and a through hole 1025, cavity 1022 is provided inside partition 1021, through hole 1025 is provided on a side wall of partition 1021, through hole 1025 is penetrated from left and right sides of partition 1021 to a middle portion of partition 1021, and is communicated with cavity 1022 inside partition 1021.

The cavity 1022 is formed in the partition 1021, so that sound waves can be transmitted from solid to gas to solid, the sound wave transmission capacity can be weakened, and the sound absorption effect can be achieved.

Referring to fig. 1, 2 and 4, the sound absorbing portion 102 of the present embodiment further includes a supporting plate 1023 and a protruding portion 1024, the top surface of the supporting plate 1023 is fixedly connected with the top of the inner wall of the cavity 1022, the left and right sides of the supporting plate 1023 are fixedly connected with the left and right sides of the inner wall of the cavity 1022, and the cross section of the supporting plate 1023 is arranged in a shape with the left and right sides expanding outwards.

A support plate 1023 is provided in the cavity 1022 to improve the compression resistance of the top plate 101, thereby enhancing the overall strength of the composite plate.

Referring to fig. 1, 2 and 4, the number of the protrusions 1024 in the present embodiment is several, the protrusions 1024 are uniformly disposed on the inner wall of the cavity 1022 and on the left and right sides of the supporting plate 1023, and the protrusions 1024 are designed as hemispherical shapes as a whole.

Referring to fig. 1, 2 and 3, the sound absorbing layer 1 of the present embodiment further includes a reflecting portion 104, the reflecting portion 104 is installed at the bottom of the inner wall of the groove 103, the cross section of the reflecting portion 104 is designed as an isosceles triangle, and the inclined surfaces on two sides of the reflecting portion 104 correspond to the through holes 1025 on the partition 1021.

The reflection part 104 is arranged on the inner wall of the groove 103, the reflection part 104 is used for reflecting the sound wave received by the top plate 101 into the perforation 1025, then the sound wave is transmitted to the supporting plate 1023, and the sound wave is continuously refracted in the inner wall of the cavity 1022 through the convex part 1024 on the supporting plate 1023, so that the transmission capability of the sound wave is continuously weakened, and the sound absorbing effect of the sound absorbing part 102 is further enhanced.

Referring to fig. 1 and 2, the sound absorbing layer 1 of the present embodiment further includes a sound absorbing member 105, a hollow chamber is formed in the top plate 101, the sound absorbing member 105 is disposed in the hollow chamber, and the sound absorbing member 105 is filled with sound absorbing cotton.

The sound absorption cotton is filled in the empty chamber formed in the top plate 101 to absorb sound waves transmitted to the top plate 101, thereby enhancing the sound absorption effect of the sound absorption portion 102 again.

Referring to fig. 1 and 3, the foundation layer 2 of the present embodiment includes a substrate 201 and a plurality of bottom blocks 202, the bottom blocks 202 are uniformly mounted on the bottom surface of the substrate 201, the arrangement positions of the bottom blocks 202 are in one-to-one correspondence with the arrangement positions of the grooves 103, and the substrate 201 and the top plate 101 are both bamboo charcoal fiber plates.

The bottom of the base plate 201 is provided with the bottom block 202, the problem of weak sound absorption capacity caused by over-thinness at the corresponding position of the groove 103 is solved by using the increased thickness of the bottom block 202, and meanwhile, an uneven surface is formed between the bottom block 202 and the base plate 201 and can be used for fitting cement to enhance the contact area with cement, so that the cement can be more conveniently adhered and solidified.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a bamboo charcoal fiber multilayer composite sound absorbing board, includes sound absorbing layer (1) and foundation layer (2), its characterized in that:

the sound absorption layer (1) is arranged on the top of the base layer (2);

the sound absorption layer (1) comprises a top plate (101), a sound absorption part (102) and a groove (103);

the grooves (103) are uniformly formed in the top surface of the top plate (101), the sound absorbing parts (102) are uniformly arranged on the top surface of the top plate (101), and the grooves (103) and the sound absorbing parts (102) are arranged at intervals.

2. The bamboo charcoal fiber multi-layer composite sound absorbing plate according to claim 1, wherein the sound absorbing portion (102) comprises a partition plate (1021), a cavity (1022) and a perforation (1025), the cavity (1022) is formed in the partition plate (1021), the perforation (1025) is formed in the side wall of the partition plate (1021), and the perforation (1025) is communicated with the cavity (1022) in the partition plate (1021) from the left side and the right side of the partition plate (1021) to the middle of the partition plate (1021).

3. The bamboo charcoal fiber multilayer composite sound absorbing plate according to claim 1, wherein the sound absorbing part (102) further comprises a supporting plate (1023) and a protruding part (1024), the top surface of the supporting plate (1023) is fixedly connected with the top of the air inner wall, the left side and the right side of the supporting plate (1023) are fixedly connected with the left side and the right side of the inner wall of the cavity (1022), and the cross section of the supporting plate (1023) is arranged in a shape with the left side and the right side expanding outwards.

4. A bamboo charcoal fiber multi-layer composite sound absorbing plate according to claim 3, wherein the number of the protruding parts (1024) is a plurality, the protruding parts (1024) are uniformly arranged on the inner wall of the cavity (1022) and on the left and right sides of the supporting plate (1023), and the protruding parts (1024) are designed as a hemispherical shape as a whole.

5. The bamboo charcoal fiber multilayer composite sound absorbing plate according to claim 1, wherein the sound absorbing layer (1) further comprises a reflecting portion (104), the reflecting portion (104) is installed at the bottom of the inner wall of the groove (103), the cross section of the reflecting portion (104) is designed into an isosceles triangle, and two side inclined planes of the reflecting portion (104) correspond to the through holes (1025) on the partition plate (1021).

6. The bamboo charcoal fiber multilayer composite sound absorbing plate according to claim 1, wherein the sound absorbing layer (1) further comprises a sound absorbing member (105), a hollow chamber is provided in the top plate (101), and the sound absorbing member (105) is provided in the hollow chamber.

7. The bamboo charcoal fiber multilayer composite acoustic panel according to claim 1, wherein the base layer (2) comprises a substrate (201) and bottom blocks (202), the number of the bottom blocks (202) is a plurality, the bottom blocks (202) are uniformly arranged on the bottom surface of the substrate (201), and the arrangement positions of the bottom blocks (202) are in one-to-one correspondence with the arrangement positions of the grooves (103).