Multilayer composite indoor acoustic panel

Abstract

The utility model discloses a multilayer composite indoor acoustical board, relates to the technical field of indoor sound insulation, and adopts the technical scheme that the multilayer composite indoor acoustical board comprises a panel and a substrate, the panel is provided with a plurality of sound-absorbing holes I distributed in an array, the substrate is provided with a plurality of sound-absorbing holes II corresponding to the sound-absorbing holes I, and the panel is provided with a plurality of sound-absorbing holes II corresponding to the sound-absorbing holes II. The diameter of the second sound absorption hole is smaller than that of the first sound absorption hole, a plurality of sound absorption reflection grooves are formed in the base plate, and the sound absorption reflection grooves are located between the first sound absorption hole and the second sound absorption hole and extend to the position between the panel and the base plate. Through the arrangement of the structure, the multi-layer composite indoor acoustic panel has a good sound absorption effect, can attenuate sound waves to achieve the effect of reducing noise, and reduces the influence of the noise on the indoor environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to indoor sound insulation technical field more specifically, it relates to a multilayer composite indoor sound absorption board. BACKGROUND

[0002] Noise refers to the sound emitted by the irregular vibration of the sound emitting body, sound is produced by the vibration of the object and is propagated in a certain medium in the form of wave, the noise pollution commonly referred to as man-made, from the physiological point of view, all the sounds that interfere with people's rest, study and work and the sounds that interfere with the sounds you want to hear, namely unnecessary sound, are collectively referred to as noise, when noise causes adverse effects on people and the surrounding environment, noise pollution is formed.

[0003] In daily life, the inner surface of the ordinary room is generally composed of flat and hard materials, and the sound absorption and noise reduction effect is poor, so in the indoor space without sound absorption treatment, sound will be reflected between the hard surfaces (such as walls, floors and ceilings), causing echo and long reverberation time, thereby affecting people's work and life.

[0004] Therefore, it is necessary to provide a multilayer composite indoor sound absorption board to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a multilayer composite indoor sound absorption board to solve the problems in the background art.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] A multilayer composite indoor sound absorption board, comprising a panel and a substrate, a plurality of sound absorption holes one are arranged in an array on the panel, a plurality of sound absorption holes two corresponding to the sound absorption holes one are arranged on the substrate, the diameter of the sound absorption holes two is smaller than the diameter of the sound absorption holes one, a plurality of sound absorption reflection grooves are arranged on the substrate, the sound absorption reflection grooves are located between the sound absorption holes one and the sound absorption holes two and extend between the panel and the substrate.

[0008] The technical scheme of the utility model is further provided as follows: the cross section of the sound absorption reflection grooves is annular and coaxially arranged with the sound absorption holes two, adjacent sound absorption reflection grooves are communicated through connecting grooves, and the connecting grooves are arranged on one side of the panel facing the substrate.

[0009] The technical scheme of the utility model is further provided as follows: the cross section of the connecting grooves is annular and coaxially arranged with the sound absorption reflection grooves.

[0010] The sound-absorbing reflection groove and the connecting groove are jointly filled with sound-absorbing cotton.

[0011] The technical scheme of the utility model further sets up that: the faceplate and the base plate are both provided with a plurality of dovetail grooves corresponding to positions on one side of each other, the dovetail grooves are located between adjacent sound-absorbing holes, and the dovetail grooves on the faceplate and the base plate are jointly provided with connecting pieces which are attached to the inner walls of the dovetail grooves.

[0012] The technical scheme of the utility model further sets up that: the base plate is attached to a rock wool board on the side away from the faceplate, the base plate is provided with a plurality of grooves corresponding to the sound-absorbing holes, and the rock wool board is provided with convex parts attached to the grooves.

[0013] The technical scheme of the utility model further sets up that: the cross-sectional shape of the sound-absorbing hole is set as an isosceles trapezoid.

[0014] Thanks to the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0015] The connecting groove on the faceplate and the sound-absorbing reflection groove on the base plate are set up, so that when the noise enters from the sound-absorbing hole on the faceplate, part of the noise enters the sound-absorbing cotton and propagates along the sound-absorbing reflection groove and the connecting groove, and the other part of the noise enters the rock wool board and propagates along the rock wool board, thereby ensuring a certain thickness of the multi-layer composite indoor sound-absorbing plate while allowing part of the noise to enter the sound-absorbing cotton in advance, realizing a double-layer sound-absorbing and noise-reducing effect, reducing the noise directly entering the rock wool board, and greatly reducing the noise passing through the multi-layer composite indoor sound-absorbing plate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a structure schematic view;

[0017] Figure 2 The utility model discloses a sectional view;

[0018] Figure 3 The utility model discloses Figure 2 An enlarged view of the middle A;

[0019] Figure 4 The utility model discloses an explosion Figure 1 ;

[0020] Figure 5 The utility model discloses an explosion Figure 2 .

[0021] In the figure: 1, panel; 2, base plate; 3, sound absorbing hole one; 4, sound absorbing hole two; 5, sound absorbing reflection groove; 6, connecting groove; 7, sound absorbing cotton; 8, dovetail groove; 9, connecting piece; 10, rock wool board; 11, groove; 12, convex part. DETAILED DESCRIPTION

[0022] In order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the specific embodiments of the utility model are further described in detail below, the following examples are used to illustrate the utility model, but not to limit the scope of the utility model. EMBODIMENT

[0023] Referring to Figures 1 to 5 As shown in the figure, the utility model provides a kind of multilayer composite indoor sound absorbing board, including panel 1 and base plate 2, panel 1 is equipped with several sound absorbing hole one 3 of array distribution, the cross-sectional shape of sound absorbing hole one 3 is set as isosceles trapezoid, can increase the absorption area of sound, accelerate the concentrated absorption of sound, base plate 2 is equipped with several sound absorbing hole two 4 corresponding with sound absorbing hole one 3, the diameter of sound absorbing hole two 4 is less than the diameter of sound absorbing hole one 3, base plate 2 is equipped with several sound absorbing reflection grooves 5, sound absorbing reflection groove 5 is located between sound absorbing hole one 3 and sound absorbing hole two 4 and extends to between panel 1 and base plate 2.

[0024] Referring to Figures 1 to 5 As shown in the figure, the cross section of several sound absorbing reflection grooves 5 is annular and coaxially arranged with sound absorbing hole two 4, adjacent sound absorbing reflection grooves 5 are communicated by connecting groove 6, connecting groove 6 is arranged on the side of panel 1 towards base plate 2, the cross section of connecting groove 6 is annular and coaxially arranged with sound absorbing reflection groove 5, sound absorbing reflection groove 5 and connecting groove 6 are filled with sound absorbing cotton 7, by above-mentioned structure, when noise enters from sound absorbing hole one 3 on panel 1, part of noise will contact with sound absorbing cotton 7 that extends from sound absorbing reflection groove 5, thereby enter sound absorbing cotton 7, because sound absorbing cotton 7 has complex texture or pore structure, this helps to scatter sound wave, so this part of entering noise will constantly reflect between panel 1 and base plate 2, thereby reducing its energy, reduce the noise that can pass through base plate 2, and the existence of sound absorbing reflection groove 5 and connecting groove 6 makes noise can reflect in larger area between panel 1 and base plate 2, weaken the energy of noise as far as possible.

[0025] Referring to Figures 1 to 5As shown, the panel 1 and the base plate 2 are both provided with a plurality of dovetail grooves 8 corresponding to positions on the side facing each other, the dovetail grooves 8 are located between adjacent sound absorbing holes one 3, the dovetail grooves 8 on the panel 1 and the base plate 2 are jointly provided with a connecting piece 9, the connecting piece 9 is attached to the inner wall of the dovetail groove 8, through the above structure, the connecting piece 9 and the dovetail groove 8 can be used to make the connection between the panel 1 and the base plate 2 stable, thereby strengthening the fixing effect of the sound absorbing cotton 7 between the panel 1 and the base plate 2, and ensuring the sound absorbing and noise reducing effect of the multi-layer composite indoor sound absorbing plate.

[0026] Reference Figures 1 to 5 As shown, the base plate 2 is attached to the rock wool board 10 away from the panel 1, the base plate 2 is provided with a plurality of grooves 11 corresponding to sound absorbing holes two 4, the rock wool board 10 is provided with a convex part 12 attached to the groove 11, the convex part 12 is integrally formed with the rock wool board 10, through the above structure, the existence of the groove 11 makes the connection area of the rock wool board 10 and the base plate 2 larger, which can strengthen the firmness of the connection between the two, and at the same time allows part of the noise to enter the rock wool board 10, which uses the porous structure of the rock wool board 10 to gradually convert sound energy into heat energy for consumption, thereby significantly reducing environmental noise.

[0027] Reference Figures 1 to 5 As shown, through the above, by setting the connecting groove 6 on the panel 1 and the sound absorbing reflection groove 5 on the base plate 2, when the noise enters from the sound absorbing hole one 3 on the panel 1, part of it enters the sound absorbing cotton 7 and propagates along the sound absorbing reflection groove 5 and the connecting groove 6, and the other part enters the rock wool board 10 and propagates along the rock wool board 10, thereby making the multi-layer composite indoor sound absorbing plate ensure a certain thickness while allowing part of the noise to enter the sound absorbing cotton 7 in advance, realizing a double-layer sound absorbing and noise reducing effect, which reduces the noise directly entering the rock wool board 10, and also greatly reduces the noise passing through the multi-layer composite indoor sound absorbing plate.

[0028] The above is only a preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solution belonging to the idea of the present application is within the protection scope of the present application. It should be noted that for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. A multi-layer composite indoor sound-absorbing panel, comprising a panel (1) and a substrate (2), characterized in that: The panel (1) has a plurality of sound-absorbing holes (3) arranged in an array, and the substrate (2) has a plurality of sound-absorbing holes (4) corresponding to the sound-absorbing holes (3). The diameter of the sound-absorbing holes (4) is smaller than the diameter of the sound-absorbing holes (3). The substrate (2) has a plurality of sound-absorbing and reflective grooves (5), which are located between the first sound-absorbing hole (3) and the second sound-absorbing hole (4) and extend to the space between the panel (1) and the substrate (2).

2. The multi-layer composite indoor sound-absorbing panel according to claim 1, characterized in that: The cross-section of several of the sound-absorbing reflective grooves (5) is annular and coaxially arranged with the second sound-absorbing hole (4). Adjacent sound-absorbing reflective grooves (5) are connected by a connecting groove (6), which is opened on the side of the panel (1) facing the substrate (2).

3. The multi-layer composite indoor sound-absorbing panel according to claim 2, characterized in that: The cross-section of the connecting groove (6) is annular and is coaxially arranged with the sound-absorbing and reflecting groove (5).

4. The multi-layer composite indoor sound-absorbing panel according to claim 3, characterized in that: The sound-absorbing reflective groove (5) and the connecting groove (6) are both filled with sound-absorbing cotton (7).

5. A multi-layer composite indoor sound-absorbing panel according to claim 1, characterized in that: Both the panel (1) and the substrate (2) have several dovetail grooves (8) with corresponding positions on their opposite sides. The dovetail grooves (8) are located between adjacent sound-absorbing holes (3). A connector (9) is provided in the dovetail grooves (8) on both the panel (1) and the substrate (2). The connector (9) is in contact with the inner wall of the dovetail groove (8).

6. The multi-layer composite indoor sound-absorbing panel according to claim 1, characterized in that: A rock wool board (10) is bonded to the side of the substrate (2) away from the panel (1). The substrate (2) has several grooves (11) corresponding to the second sound-absorbing hole (4). The rock wool board (10) has protrusions (12) that fit into the grooves (11).

7. A multi-layer composite indoor sound-absorbing panel according to claim 1, characterized in that: The cross-sectional shape of the sound-absorbing hole (3) is set as an isosceles trapezoid.

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