Sound absorption barrier with petal-shaped sound absorption assemblies

Abstract

The sound absorption barrier with the petal-shaped sound absorption assembly comprises a screen body, and the sound absorption assembly is arranged on the face, facing the sound source side, of the screen body. The sound absorption assembly comprises a plurality of sound absorption parts which are stacked in sequence, and the sound absorption parts comprise a first sound absorption body, a second sound absorption body, a third sound absorption body and a fourth sound absorption body; one side of the first sound absorber is overlapped on the lower side of the second sound absorber, the other side of the second sound absorber is overlapped on the lower side of the third sound absorber, the other side of the third sound absorber is overlapped on the lower side of the fourth sound absorber, and the other side of the fourth sound absorber is overlapped on the lower side of the first sound absorber. In conclusion, the plurality of sound absorption parts are mutually stacked from the sound source side to the side far away from the sound source side, so that the sound absorption parts form a concave-convex three-dimensional structure on the screen body, sound waves are reflected to different directions, the paths of the sound waves in the propagation process become more complex, and the phenomenon of mutual interference among the reflected waves is promoted; therefore, the sound absorption and noise reduction capability of the screen body is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of traffic noise control, in particular to a sound absorption barrier with petal-shaped sound absorption components. Background Technique

[0002] Although traditional sound barriers can reduce noise to a certain extent, they have some limitations. For example, the side facing the sound source is usually a flat surface, so it is difficult to meet the noise reduction requirements in different environments and frequencies. Content of the Utility Model

[0003] The purpose of the utility model is to provide a sound absorption barrier with petal-shaped sound absorption components to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a sound absorption barrier with petal-shaped sound absorption components, including a screen body, and a sound absorption component is arranged on the side of the screen body facing the sound source; the sound absorption component includes a number of sound absorption elements stacked in sequence, and through the mutual stacking of the sound absorption elements, a concave-convex three-dimensional structure is formed on the side of the sound absorption component facing the sound source.

[0005] As a preferred technical solution of the utility model: the sound absorption element includes a first sound absorption body, a second sound absorption body, a third sound absorption body and a fourth sound absorption body; one side of the first sound absorption body overlaps on the lower side of the second sound absorption body, the other side of the second sound absorption body overlaps on the lower side of the third sound absorption body, the other side of the third sound absorption body overlaps on the lower side of the fourth sound absorption body, and the other side of the fourth sound absorption body overlaps on the lower side of the first sound absorption body.

[0006] As a preferred technical solution of the utility model: the number of the sound absorption elements is three; among them, the sizes of the first sound absorption body, the second sound absorption body, the third sound absorption body and the fourth sound absorption body on the outer sound absorption element are smaller than the sizes of the first sound absorption body, the second sound absorption body, the third sound absorption body and the fourth sound absorption body on the inner sound absorption element.

[0007] As a preferred technical solution of the utility model: the screen body further includes a sound absorption panel, and the sound absorption component is distributed on the sound absorption panel.

[0008] As a preferred technical solution of the utility model: the side of the sound absorption panel away from the sound absorption component is connected to a provided sound absorption board.

[0009] As a preferred technical solution of the utility model: the side of the sound absorption board away from the sound absorption panel is connected to a provided sound insulation backboard.

[0010] As a preferred technical solution of the utility model: the material of the sound absorption board is centrifugal glass wool.

[0011] With the above technical solution, the beneficial effects of the present utility model are as follows: By stacking multiple sound-absorbing members from the sound source side to the side away from the sound source side, a concave-convex three-dimensional structure is formed on the screen body by the sound-absorbing members, so that the sound absorption area of the sound barrier can be increased, the sound waves are reflected multiple times at different angles, and the sound wave propagation path is extended, thereby gradually weakening the sound wave energy during the reflection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is an exploded view of the main structure of the present utility model;

[0013] Figure 2 is a sectional view of the main structure of the present utility model;

[0014] Figure 3 is a front view of the sound-absorbing component of the present utility model.

[0015] In the figure: 1, sound-absorbing panel; 2, sound-absorbing board; 3, sound-insulating backboard; 4, sound-absorbing component; 40, first sound-absorbing body; 41, second sound-absorbing body; 42, third sound-absorbing body; 43, fourth sound-absorbing body; 44, sound-absorbing member; 5, screen body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "upper surface", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0017] Please refer to Figures 1-3 , an embodiment provided by the present utility model: A sound-absorbing barrier with a petal-shaped sound-absorbing component, including a screen body 5, and a sound-absorbing component 4 is provided on one side of the screen body 5 facing the sound source side; the sound-absorbing component 4 includes a plurality of sound-absorbing members 44 stacked in sequence, and by stacking the sound-absorbing members 44 with each other, a concave-convex three-dimensional structure is formed on the side of the sound-absorbing component 4 facing the sound source side.

[0018] In summary, a concave-convex three-dimensional structure is formed on the surface of the screen body 5, so that the sound absorption area of the sound barrier for sound waves can be increased, the sound waves are reflected multiple times at different angles, and the propagation path of the sound waves is extended, so that the energy of the sound waves gradually weakens during the reflection process.

[0019] Specifically, the sound absorption member 44 includes a first sound absorption body 40, a second sound absorption body 41, a third sound absorption body 42, and a fourth sound absorption body 43; one side of the first sound absorption body 40 overlaps the lower side of the second sound absorption body 41, and the other side of the second sound absorption body 41 overlaps the lower side of the third sound absorption body 42, the other side of the third sound absorption body 42 overlaps the lower side of the fourth sound absorption body 43, and the other side of the fourth sound absorption body 43 overlaps the lower side of the first sound absorption body 40.

[0020] Furthermore, the number of the sound absorption members 44 is three; among them, the sizes of the first sound absorption body 40, the second sound absorption body 41, the third sound absorption body 42, and the fourth sound absorption body 43 on the outer sound absorption member 44 are smaller than the sizes of the first sound absorption body 40, the second sound absorption body 41, the third sound absorption body 42, and the fourth sound absorption body 43 on the inner sound absorption member 44.

[0021] Using the above method, the sound absorption component 4 can not only improve the sound absorption effect but also make the sound absorption component 4 appear on the screen body 5 similar to a petal structure. Therefore, by increasing the surface area of the screen body, more sound absorption areas are provided, the sound wave diffraction phenomenon is effectively reduced, and the overall noise reduction performance of the material is improved. In addition, when the sound wave hits the screen body 5, the concave-convex three-dimensional structure similar to a petal shape on the surface of the screen body 5 can reflect the sound wave in different directions, making the path of the sound wave more complex during the propagation process, and interference occurs between the reflected waves. When the wave crest and wave trough of the reflected waves meet, they will cancel each other out.

[0022] Among them, the concave-convex three-dimensional structure in the shape of a petal is made by a simulation process, so that the sound absorption component 4 is in a shape similar to a petal, and the shape, size, and color of the petal can also be adjusted according to the needs of the scene; in addition, the shape, size, color and other parameters of the sound absorption component 4 can be changed to make the screen body 5 adjustable according to the needs of the scene.

[0023] In order to solve the problem that it is difficult for a single material and structure design to meet the noise reduction requirements under different environments and frequencies, and it is difficult for traditional sound barriers to effectively reduce noise due to structural and material limitations.

[0024] The screen body 5 further includes a sound absorption panel 1, and the sound absorption components 4 are distributed on the sound absorption panel 1. One side of the sound absorption panel 1 away from the sound absorption components 4 is connected to a provided sound absorption board 2. One side of the sound absorption board 2 away from the sound absorption panel 1 is connected to a provided sound insulation backboard 3. Furthermore, the material of the sound absorption board 2 is centrifugal glass wool.

[0025] In summary, the centrifugal glass wool sound absorption board 2 is distributed between the sound absorption panel 1 and the sound insulation backboard 3. The centrifugal glass wool sound absorption board 2 has a good absorption effect on low-frequency noise in traffic and can effectively absorb sounds of different frequencies. Among them, the material of the sound absorption board 2 is preferably a metal material, such as stainless steel plate, iron plate, copper plate, aluminum alloy plate, etc.

[0026] In addition, the screen body 5 is composed of the sound absorption panel 1, the sound absorption board 2 and the sound insulation backboard 3. Then the sound absorption component 4 is installed on the sound absorption panel 1, so that the screen body 5 can be modularly designed, which is convenient for installation, disassembly and transportation, and greatly reduces the cost. At the same time, a layer of non-woven fabric is wrapped outside the sound absorption board 2 to prevent the glass fibers from flying and causing harm to the human body and the environment.

[0027] Specifically: the thickness of the sound absorption board 2 is greater than 2 cm; in this embodiment, the thickness of the sound absorption board 2 is 10 cm.

[0028] As Figure 3 shown, the side length of the square bottom opening of the sound absorption component 4 is 4 - 10 cm, and the distance between adjacent sound absorption components 4 is 0.5 - 1.5 cm. The sound absorption components 4 are arranged in multiple rows along the transverse direction of the sound absorption board 2, and the sound absorption components 4 in adjacent two rows are aligned in the vertical direction.

[0029] When manufacturing the sound absorption component 4, a cut is made on the sound absorption board 2 along the extension direction of the sound absorption component 4, and then the sound absorption component 4 can be formed by stamping. Therefore, the manufacturing process is relatively simple and does not incur additional costs.

[0030] In this embodiment, a 10-cm-thick centrifugal glass wool is provided between the sound insulation backboard 3 and the sound absorption panel 1 as the sound absorption board 2.

[0031] In addition, the sound absorption board 2 can also adopt the setting method of a sound absorption material layer + a sound absorption cavity, that is, an intermediate body with a hollow structure is added between the sound absorption panel 1 and the sound insulation backboard 3 to achieve the purpose of weight reduction while ensuring effective noise reduction. The sum of the thicknesses of the sound absorption panel 1 and the sound insulation backboard 3 is 10 cm; among them, the thickness of the sound absorption material layer is 5 - 7 cm.

[0032] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principles and spirits of the present invention, various changes, modifications, substitutions and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. A sound absorbing barrier having a petal-shaped sound absorbing component, characterized in that: It comprises a screen body (5), wherein a sound absorbing component (4) is provided on a side of the screen body (5) facing the sound source; The sound absorbing component (4) comprises a plurality of sound absorbing members (44) stacked in sequence, and the sound absorbing members (44) are stacked on each other so that a concave-convex three-dimensional structure is formed on a side of the sound absorbing component (4) facing the sound source.

2. The sound absorbing barrier with petal-shaped sound absorbing components according to claim 1, characterized in that: The sound absorbing member (44) comprises a first sound absorbing body (40), a second sound absorbing body (41), a third sound absorbing body (42) and a fourth sound absorbing body (43); one side of the first sound absorbing body (40) overlaps the lower side of the second sound absorbing body (41), the other side of the second sound absorbing body (41) overlaps the lower side of the third sound absorbing body (42), the other side of the third sound absorbing body (42) overlaps the lower side of the fourth sound absorbing body (43), and the other side of the fourth sound absorbing body (43) overlaps the lower side of the first sound absorbing body (40).

3. The sound absorbing barrier with petal-shaped sound absorbing components according to claim 2, characterized in that: The number of the sound absorbing members (44) is three; wherein the sizes of the first sound absorber (40), the second sound absorber (41), the third sound absorber (42), and the fourth sound absorber (43) located on the outer sound absorbing member (44) are smaller than the sizes of the first sound absorber (40), the second sound absorber (41), the third sound absorber (42), and the fourth sound absorber (43) located on the inner sound absorbing member (44).

4. A sound absorbing barrier with a petal-shaped sound absorbing component according to claim 1, 2 or 3, characterized in that: The screen body (5) further comprises a sound absorbing panel (1), and the sound absorbing components (4) are distributed on the sound absorbing panel (1).

5. The sound absorbing barrier with petal-shaped sound absorbing components according to claim 4, characterized in that: A side of the sound absorbing panel (1) away from the sound absorbing component (4) is connected to a sound absorbing plate (2).

6. The sound absorbing barrier with petal-shaped sound absorbing components according to claim 5, characterized in that: A side of the sound absorbing plate (2) away from the sound absorbing panel (1) is connected to a sound insulation back plate (3).

7. The sound absorbing barrier with petal-shaped sound absorbing components according to claim 6, characterized in that: The sound absorbing plate (2) is made of centrifugal glass wool.

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