Wave interference shaped sound barrier

Abstract

The utility model discloses a kind of wave interference form sound barriers, including sound absorption panel and backboard;The sound absorption panel includes plate body and through-hole being opened on plate body;The side of plate body is equipped with first sound absorption part, and the other side of plate body is equipped with second sound absorption part;The cross section of first sound absorption part and second sound absorption part is wavy line shape.Because sound absorption panel is composed of plate body and two sound absorption parts located at both sides of plate body, and two sound absorption parts are wavy line, so that sound source is contacted after sound absorption part, two sound absorption parts and through-hole of wave shape change, interfere with sound wave path and phase, to realize the absorption of noise energy, while wave-shaped sound absorption panel can also increase the rigidity of structure, improve service life.The equipment is optimized to the structure of sound absorption panel, not only absorbs and reduces noise, but also beautifies the appearance of equipment, improves service life.In addition, directly process sound absorption panel wave shape, then install sound absorption panel on backboard, so that the installation and replacement of sound absorption panel are simple.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction equipment technology, specifically a wave interference-shaped sound barrier. Background Technology

[0002] With the widespread adoption of highway transportation infrastructure, sound barriers have become a common noise reduction facility. However, traditional sound barriers are prone to specular reflection, causing light pollution and affecting the lives of nearby residents and traffic safety. Furthermore, their designs are often monotonous, lacking aesthetic appeal and failing to integrate with the surrounding environment. Currently, the market lacks sound barrier products that integrate noise reduction and landscaping functions. Therefore, there is an urgent need for a sound barrier that can effectively absorb traffic noise while also possessing an aesthetically pleasing decorative effect. Utility Model Content

[0003] The purpose of this invention is to provide a wave interference-shaped acoustic barrier to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a wave interference-shaped sound barrier, comprising a sound-absorbing plate and a back plate installed on the back of the sound-absorbing plate; the sound-absorbing plate comprises a plate body; a first sound-absorbing part is provided on one side of the plate body, and a second sound-absorbing part is provided on the other side of the plate body; the cross-sections of the first sound-absorbing part and the second sound-absorbing part are wavy.

[0005] As a preferred technical solution of this utility model: the sound-absorbing plate is provided with through holes, and sound waves are guided into the sound-absorbing body between the sound-absorbing plate and the back plate through the through holes.

[0006] As a preferred technical solution of this utility model, the sound absorber includes, but is not limited to, rock wool, glass wool, fiber wool, aluminum foam, and microporous board.

[0007] As a preferred technical solution of this utility model: the first sound-absorbing part and the second sound-absorbing part are also provided with through holes, and the sound waves are guided into the sound-absorbing body between the sound-absorbing plate and the back plate through the through holes.

[0008] As a preferred technical solution of this utility model: one end of the back plate is provided with a first expansion portion, and the other end of the back plate is also provided with a second expansion portion, and the sound-absorbing plate is fixed on the back plate by expanding outward through the first expansion portion and the second expansion portion.

[0009] As a preferred technical solution of this utility model: the first sound-absorbing part is provided with a first tightening part at the end away from the board body, and the second sound-absorbing part is provided with a second tightening part at the end away from the board body; wherein, the first tightening part is connected to the first expansion part, and the second tightening part is connected to the second expansion part.

[0010] As a preferred technical solution of this utility model: the first sound-absorbing part includes a first sound-absorbing surface, a second sound-absorbing surface, a third sound-absorbing surface, a fourth sound-absorbing surface, and a fifth sound-absorbing surface; wherein, the plate body and the first sound-absorbing surface, the first sound-absorbing surface and the second sound-absorbing surface, the second sound-absorbing surface and the third sound-absorbing surface, the third sound-absorbing surface and the fourth sound-absorbing surface, and the fourth sound-absorbing surface and the fifth sound-absorbing surface are all connected by a connecting plate, and the connecting plate is parallel to the ground.

[0011] As a preferred technical solution of this utility model: the length of the connecting plate gradually increases from the plate body to the fifth sound-absorbing surface; the connecting plate between the plate body and the first sound-absorbing surface is the shortest, and the connecting plate between the fourth sound-absorbing surface and the fifth sound-absorbing surface is the longest.

[0012] As a preferred technical solution of this utility model: the side of the first sound-absorbing surface, the second sound-absorbing surface, the third sound-absorbing surface, the fourth sound-absorbing surface and the fifth sound-absorbing surface facing the sound source is an arc-shaped surface.

[0013] The beneficial effects of this utility model by adopting the above technical solution are as follows: 1. Since the sound-absorbing plate is composed of a plate body and two sound-absorbing parts located on both sides of the plate body, and the two sound-absorbing parts are wavy, after the sound source comes into contact with the sound-absorbing parts, the two wavy sound-absorbing parts change the propagation path and phase of the sound wave. Since the phase of the sound wave changes, the sound waves interfere with each other and absorb energy, thereby reducing the energy of the noise.

[0014] 2. By optimizing the structure of the sound-absorbing panel, the side facing the sound source is wavy, which not only beautifies the appearance of the device, but also changes the direction of sound wave reflection to promote the interference between sound waves, causing the energy in the sound waves to tend to annihilate, thereby achieving the effect of noise reduction.

[0015] 3. The sound-absorbing panel is directly processed into a wavy shape and then installed on the back plate. This makes the molding of the sound-absorbing panel simple and convenient; secondly, the equipment does not consume other energy during use; and thirdly, the installation and replacement of the sound-absorbing panel is simple, which facilitates the maintenance and upkeep of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0018] Figure 3 This is a side view of the sound-absorbing panel of this utility model.

[0019] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle;

[0020] Figure 5 This is a side view of the back panel of this utility model.

[0021] In the diagram: 1. Sound-absorbing panel; 10. Panel body; 11. First sound-absorbing surface; 12. Second sound-absorbing surface; 13. Third sound-absorbing surface; 14. Fourth sound-absorbing surface; 15. Fifth sound-absorbing surface; 16. First sound-absorbing part; 17. First tightening part; 18. Second sound-absorbing part; 19. Second tightening part; 110. Through hole; 111. Connecting plate; 2. Back plate; 20. First expansion part; 21. Second expansion part; 3. Sound-absorbing body. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.

[0023] Please see Figure 1-5 An embodiment of this utility model is provided: a wave interference-shaped sound barrier, including a sound-absorbing plate 1 and a back plate 2 installed on the back of the sound-absorbing plate 1; the sound-absorbing plate 1 includes a plate body 10; a first sound-absorbing part 16 is provided on one side of the plate body 10, and a second sound-absorbing part 18 is provided on the other side of the plate body 10; the cross-sections of the first sound-absorbing part 16 and the second sound-absorbing part 18 are wavy.

[0024] In summary, since the sound-absorbing panel consists of a panel body and two sound-absorbing parts located on both sides of the panel body, and the two sound-absorbing parts are wavy, when the sound source comes into contact with the sound-absorbing parts, the wavy shape of the two sound-absorbing parts changes the propagation path and direction of the sound wave. Due to the change in the phase of the sound wave, the sound waves diffract and absorb energy from each other, thereby reducing noise generation. At the same time, the wavy shape of the sound-absorbing panel 1 can also increase the rigidity of the structure and extend its service life. This equipment optimizes the structure of the sound-absorbing panel, making the side facing the sound source wavy, which not only beautifies the appearance of the equipment, but also promotes the diffraction of sound waves by changing the direction of sound wave reflection, thus achieving the effect of noise reduction. Directly processing the sound-absorbing panel into a wavy shape and then installing the sound-absorbing panel on the back plate makes the molding of the sound-absorbing panel simple and convenient; secondly, the equipment does not consume other energy during use; and thirdly, the installation and replacement of the sound-absorbing panel is simple, which facilitates the maintenance and upkeep of the equipment.

[0025] To improve the noise reduction effect of the device, through holes 110 are made on the sound-absorbing plate 1. The through holes 110 are used to guide sound waves into the sound-absorbing body, so as to dilute the sound wave energy in the sound-absorbing body. Specifically, when the through holes 110 are made on the plate 10, the sound-absorbing plate 1 is provided with through holes 110, and the sound waves are guided into the sound-absorbing body 3 between the sound-absorbing plate 1 and the back plate 2 through the through holes 110.

[0026] When the through hole 110 is opened on the sound-absorbing part, the first sound-absorbing part 16 and the second sound-absorbing part 18 are also provided with through holes 110, and the sound waves are guided into the sound-absorbing body 3 between the sound-absorbing plate 1 and the back plate 2 through the through hole 110.

[0027] In summary, by opening through holes 110 on the sound-absorbing plate 1, sound waves can enter the sound absorber 3 through the through holes 110, so as to consume energy using the sound absorber; wherein, the material of the sound absorber 3 is preferably rock wool, glass wool, fiber cotton, aluminum foam, or microporous plate.

[0028] To facilitate the installation of the sound-absorbing panel 1, one end of the back plate 2 is provided with a first expansion portion 20, and the other end of the back plate 2 is provided with a second expansion portion 21. The sound-absorbing panel 1 is fixed on the back plate 2 by expanding outward through the first expansion portion 20 and the second expansion portion 21.

[0029] Furthermore, the first sound-absorbing part 16 is provided with a first tightening part 17 at one end away from the plate 10, and the second sound-absorbing part 18 is provided with a second tightening part 19 at one end away from the plate 10; wherein, the first tightening part 17 is connected to the first expansion part 20, and the second tightening part 19 is connected to the second expansion part 21.

[0030] In summary, when the sound-absorbing panel 1 is attached to the back panel 2, it expands outward using the extension part and tightens inward using the tightening part, ensuring that the sound-absorbing panel 1 can be stably and reliably positioned on the back panel 2. In particular, the connection and assembly of the sound-absorbing panel 1 and the back panel 2 can be completed without the need for bolts or other fasteners, making the replacement of the sound-absorbing panel 1 much simpler and more convenient. Both the back panel 2 and the sound-absorbing panel 1 are formed in one piece using sheet metal stamping technology, which reduces the processing difficulty of the back panel 2 and the sound-absorbing panel 1, while also reducing their production costs.

[0031] Based on the above scheme, the first sound-absorbing part 16 includes a first sound-absorbing surface 11, a second sound-absorbing surface 12, a third sound-absorbing surface 13, a fourth sound-absorbing surface 14, and a fifth sound-absorbing surface 15; wherein, the plate body 10 is connected to the first sound-absorbing surface 11, the first sound-absorbing surface 11 is connected to the second sound-absorbing surface 12, the second sound-absorbing surface 12 is connected to the third sound-absorbing surface 13, the third sound-absorbing surface 13 is connected to the fourth sound-absorbing surface 14, and the fourth sound-absorbing surface 14 is connected to the fifth sound-absorbing surface 15 by a connecting plate 111, and the connecting plate 111 is parallel to the ground.

[0032] Specifically, the connecting plate 111 starts from the plate body 10 and ends at the fifth sound-absorbing surface 15, and the length of the connecting plate 111 gradually increases; the connecting plate 111 between the plate body 10 and the first sound-absorbing surface 11 is the shortest, and the connecting plate 111 between the fourth sound-absorbing surface 14 and the fifth sound-absorbing surface 15 is the longest.

[0033] Based on this, a connecting plate 111 is placed horizontally between two sound-absorbing surfaces, and the lengths of each connecting plate 111 are different. This causes the side of the sound-absorbing plate facing the sound source to have obvious undulations, which causes the sound wave to change its propagation path after impact, so that the sound waves can collide, interfere with each other, and interact with each other, thus causing the energy of the sound waves to tend to be annihilated.

[0034] Furthermore, the first sound-absorbing surface 11, the second sound-absorbing surface 12, the third sound-absorbing surface 13, the fourth sound-absorbing surface 14, and the fifth sound-absorbing surface 15 are curved surfaces facing the sound source. This causes the sound waves to reflect in different directions after they come into contact with the sound-absorbing surfaces. The sound waves reflected by each sound-absorbing surface reduce the energy of the sound waves through mutual collision, interference, and interaction. Thus, while beautifying the overall structure of the sound-absorbing panel 1, it can also reduce noise.

[0035] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A wave interference-shaped acoustic barrier, characterized in that: It includes a sound-absorbing panel (1) and a back plate (2) installed on the back of the sound-absorbing panel (1); The sound-absorbing panel (1) includes a panel body (10); a first sound-absorbing part (16) is provided on one side of the panel body (10), and a second sound-absorbing part (18) is provided on the other side of the panel body (10); The cross-sections of the first sound-absorbing part (16) and the second sound-absorbing part (18) are wavy.

2. The wave interference-shaped acoustic barrier according to claim 1, characterized in that: The sound-absorbing plate (1) is provided with a through hole (110), and the sound waves are guided into the sound-absorbing body (3) between the sound-absorbing plate (1) and the back plate (2) through the through hole (110).

3. The wave interference-shaped acoustic barrier according to claim 2, characterized in that: The sound absorber (3) includes, but is not limited to, rock wool, glass wool, fiber wool, aluminum foam, and microporous board.

4. The wave interference-shaped acoustic barrier according to claim 1, characterized in that: The first sound-absorbing part (16) and the second sound-absorbing part (18) are also provided with through holes (110), and the sound waves are guided into the sound-absorbing body (3) between the sound-absorbing plate (1) and the back plate (2) through the through holes (110).

5. A wave interference-shaped acoustic barrier according to claim 1, characterized in that: One end of the back plate (2) is provided with a first expansion portion (20), and the other end of the back plate (2) is provided with a second expansion portion (21). The sound-absorbing plate (1) is fixed on the back plate (2) by expanding outward through the first expansion portion (20) and the second expansion portion (21).

6. A wave interference-shaped acoustic barrier according to claim 5, characterized in that: The first sound-absorbing part (16) has a first tightening part (17) at one end away from the plate (10), and the second sound-absorbing part (18) has a second tightening part (19) at one end away from the plate (10); wherein the first tightening part (17) is connected to the first expansion part (20), and the second tightening part (19) is connected to the second expansion part (21).

7. A wave interference-shaped acoustic barrier according to any one of claims 1-6, characterized in that: The first sound-absorbing part (16) includes a first sound-absorbing surface (11), a second sound-absorbing surface (12), a third sound-absorbing surface (13), a fourth sound-absorbing surface (14), and a fifth sound-absorbing surface (15); wherein the plate body (10) is connected to the first sound-absorbing surface (11), the first sound-absorbing surface (11) is connected to the second sound-absorbing surface (12), the second sound-absorbing surface (12) is connected to the third sound-absorbing surface (13), the third sound-absorbing surface (13) is connected to the fourth sound-absorbing surface (14), and the fourth sound-absorbing surface (14) is connected to the fifth sound-absorbing surface (15) by a connecting plate (111).

8. A wave interference-shaped acoustic barrier according to claim 7, characterized in that: The connecting plate (111) starts from the plate body (10) and ends at the fifth sound-absorbing surface (15), and the length of the connecting plate (111) gradually increases; the connecting plate (111) between the plate body (10) and the first sound-absorbing surface (11) is the shortest, and the connecting plate (111) between the fourth sound-absorbing surface (14) and the fifth sound-absorbing surface (15) is the longest.

9. A wave interference-shaped acoustic barrier according to claim 8, characterized in that: The first sound-absorbing surface (11), the second sound-absorbing surface (12), the third sound-absorbing surface (13), the fourth sound-absorbing surface (14), and the fifth sound-absorbing surface (15) have an arc-shaped surface facing the sound source.

Images