Irregular hexagonal sound absorption structure sound barrier

Abstract

The utility model relates to an irregular hexagonal sound absorption structure sound barrier which comprises a sound barrier body and a fixing component, the sound barrier body is fixedly installed on the inner side of the fixing component, and the sound barrier body comprises a sound absorption panel, sound absorption cotton and a sound insulation back plate; the sound insulation back plate and the sound absorption panel are formed by welding; a large number of sound absorption holes are attached to the sound absorption panel, an irregular hexagonal sound absorption structure is further arranged on the sound absorption panel, and the irregular hexagonal sound absorption structure is formed by sequentially splicing three inner circular arcs and three outer circular arcs which are distributed in an annular array mode. By constructing an irregular hexagonal sound absorption structure, sound energy is converted into heat energy to be consumed by utilizing friction and viscous action between sound waves and air molecules and sound absorption materials in propagation, and acoustic performance can be effectively adjusted to adapt to various target noise reduction ranges; the irregular hexagons can better disperse pressure and bear certain external force and impact, deformation and damage are not prone to occurring, the service life is prolonged, and the sound barrier body has high strength and stability.

Description

Technical Field

[0001] The utility model relates to the technical field of traffic noise control, and particularly relates to a sound barrier with an irregular hexagon sound absorption structure. Background Technique

[0002] With the economic development and social progress of our country, a large number of expressways have been built, and urban rails and high-speed railways have been opened to traffic one after another, which brings great convenience to the residents along the line, but at the same time causes serious noise pollution problems.

[0003] As one of the most widely used noise reduction measures at present, the sound barrier has the following problems: First, the design of the screen body structure is single, the absorption ability of sound waves in different frequency bands is limited, and the overall noise reduction effect is poor; Second, the distance between the columns of the screen body is large, which makes the panel bear uneven pressure, and the screen body is easy to loosen and deform under the action of external forces; Third, the design of the screen body structure pays attention to functionality and ignores the aesthetic feeling of the shape design, resulting in disharmony with the surrounding environment and causing visual oppression and imbalance. Content of the Utility Model

[0004] The utility model provides a sound barrier with an irregular hexagon sound absorption structure to overcome the above technical problems, such as the single design of the sound barrier structure, the limited absorption ability of sound waves in different frequency bands, and the poor overall noise reduction effect.

[0005] For this reason, the utility model provides a sound barrier with an irregular hexagon sound absorption structure, which includes a sound barrier screen body and a fixing member. The sound barrier screen body is fixedly installed inside the fixing member. The sound barrier screen body includes a sound absorption panel, sound absorption cotton, and a sound insulation back panel; the sound insulation back panel and the sound absorption panel are welded together, and the sound absorption cotton is sandwiched between the two plates; wherein, a large number of sound absorption holes are attached to the sound absorption panel, and an irregular hexagon sound absorption structure is also provided on the sound absorption panel. The irregular hexagon sound absorption structure is formed by sequentially splicing three inner arcs distributed in a circular array and three outer arcs distributed in a circular array.

[0006] As a preferred technical solution of the present application, the sound absorption cotton includes a first layer of sound absorption cotton and a second layer of sound absorption cotton.

[0007] As a preferred technical solution of the present application, the sound absorption cotton is selected from one of glass wool sound absorption cotton, rock wool sound absorption cotton, and polyester fiber sound absorption cotton.

[0008] As a preferred technical solution of the present application, the thickness of the sound absorption panel is 5 mm to 10 mm.

[0009] As a preferred technical solution of the present application, the thickness of the sound absorption panel is specifically 10 mm.

[0010] As a preferred technical solution of the present application, the sound absorption holes are evenly laid on the surface of the sound absorption panel, and the aperture of the sound absorption holes is 0.5 mm to 2 mm.

[0011] As a preferred technical solution of the present application, the aperture of the sound absorption holes is specifically 2 mm.

[0012] As a preferred technical solution of the present application, the fixing member includes a column, a clamping plate fixedly connected to the column, and a card slot; the left and right ends of the sound barrier screen body are connected to the clamping plate or the card slot.

[0013] As a preferred technical solution of the present application, the clamping plate includes a first clamping plate and a second clamping plate, and the distance between the first clamping plate and the second clamping plate matches the thickness of the sound barrier screen body.

[0014] As a preferred technical solution of the present application, a protective fence is provided at the bottom of the sound barrier screen body, and the sound barrier screen body is further arranged on the protective fence in a plug-in manner.

[0015] The beneficial effects of the sound barrier with an irregular hexagon sound absorption structure provided by the present utility model are as follows: Firstly, by constructing an irregular hexagon sound absorption structure, the sound energy is converted into heat energy and consumed by using the friction and viscous effects between sound waves and air molecules and sound absorption materials during the propagation of sound waves, and the acoustic performance can be effectively adjusted to adapt to a variety of target noise reduction ranges; Secondly, the irregular hexagon can better disperse pressure, withstand certain external forces and impacts, is not easily deformed and damaged, and extends the service life, making the sound barrier screen body have high strength and stability; Finally, the appearance of the irregular hexagon structure is smooth, and it can be designed by spraying, anodic oxidation, etc. according to local characteristics, improving the overall aesthetic degree of the sound barrier.

[0016] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specification drawings constituting a part of the present application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of a sound barrier with an irregular hexagon sound absorption structure provided by the present utility model;

[0019] Figure 2 It is an exploded view of the overall structure of a sound barrier with an irregular hexagon sound absorption structure provided by the present utility model;

[0020] Figure 3Partial enlarged view of the sound absorption holes of a sound barrier with an irregular hexagonal sound absorption structure provided by the present utility model.

[0021] Figure 4 Top view of a sound barrier with an irregular hexagonal sound absorption structure provided by the present utility model;

[0022] Description of reference numerals

[0023] 1. Sound barrier panel; 11. Sound absorption panel; 111. Sound absorption holes; 12. Sound absorption cotton; 121. First layer of sound absorption cotton; 122. Second layer of sound absorption cotton; 13. Sound insulation backboard; 2. Fixing member; 21. Column; 22. Clamp; 221. First clamp; 222. Second clamp; 23. Card slot; 2. Fixing member; 3. Guardrail. Detailed implementation manners

[0024] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0025] As Figures 1 to 4 shown, the sound barrier with an irregular hexagonal sound absorption structure of the present utility model includes: a sound barrier panel 1, a fixing member 2, and a guardrail 3; the sound barrier panel 1 is fixedly installed inside the fixing member 2, and the sound barrier panel 1 is further arranged on the guardrail 3 by means of plugging.

[0026] Specifically, in combination with Figure 2 and Figure 3 , the sound barrier panel 1 includes a sound absorption panel 11, a sound absorption cotton 12, and a sound insulation backboard 13. The sound absorption panel 11 has a panel thickness of 5 mm to 10 mm, and preferably a panel thickness of 10 mm. A large number of sound absorption holes 111 are attached to the sound absorption panel 11. The sound absorption holes 111 are evenly laid on the surface of the sound absorption panel, and the hole diameter is 0.5 mm to 2 mm, and preferably a hole diameter of 2 mm. The sound absorption panel 11 is designed to have a specific resonance frequency, has a strong absorption ability for sound waves in different frequency bands, and has a good overall noise reduction effect. When the sound wave frequency matches the resonance frequency of the sound absorption panel body, the sound wave resonates in the structure, thereby absorbing sound energy.

[0027] The sound absorption panel 11 is provided with an irregular hexagonal sound absorption structure, which is formed by sequentially splicing three inner arcs distributed in an annular array and three outer arcs distributed in an annular array. By constructing an irregular hexagonal sound absorption structure on the sound absorption panel, phenomena such as reflection, refraction, and diffraction of sound waves occur, changing the propagation direction of the sound waves and reducing the sound energy directly reaching the sound receiving point. At the same time, it causes the friction and viscosity between air molecules and the hole wall, increasing the reflection and absorption of noise in the cavity.

[0028] In addition, the irregular hexagon structure has a smooth appearance and can be designed with spraying, anodic oxidation, etc. according to local characteristics, improving the overall aesthetic degree of the sound barrier. Its shape design has strong aesthetic feeling and is coordinated with the surrounding environment, without causing visual oppression and imbalance.

[0029] The sound barrier panel 1 further includes a sound insulation back panel 13. The sound insulation back panel 13 is welded to the sound absorption panel 11, and sound absorption cotton 12 is sandwiched between the two panels. The sound absorption cotton includes a first layer of sound absorption cotton 121 and a second layer of sound absorption cotton 122. The sound absorption cotton material can be selected from glass wool sound absorption cotton, rock wool sound absorption cotton, polyester fiber sound absorption cotton, etc. Preferably, the sound absorption cotton material is selected as glass wool sound absorption cotton.

[0030] Combined Figure 4 , the fixing member 2 in this embodiment includes a column 21. A clamping plate 22 and a clamping groove 23 are fixedly connected to the column 21. The left and right ends of the sound barrier panel 1 are connected to the clamping plate 22 or the clamping groove 23, playing a role in protecting and fixing the sound barrier panel 1; the distance between the columns 21 of the panel is small, making the pressure on the panel evenly distributed. Under the action of external force, the panel is not easy to loosen and deform, increasing the structural strength of the sound barrier panel 1.

[0031] The clamping plate 22 includes a first clamping plate 221 and a second clamping plate 222. The distance between the two plates matches the thickness of the sound barrier panel 1, and the first clamping plate 221 and the second clamping plate 222 are used in combination.

[0032] Among them, the clamping groove 23 is a U-shaped clamping groove and corresponds to the thickness of the sound barrier panel 1. It is only fixedly arranged inside the outermost column 21, enabling the column 21 at the edge position to connect a sound barrier panel 1. And the fixed clamping plate 22 is fixed on the column 21 in the middle position and extends a certain distance in the left and right directions along the column 21, further forming U-shaped clamping grooves on both the left and right sides of the column 21 in the middle position, so that the left and right ends of the column 21 in the middle position can respectively connect a sound barrier panel 1, having higher expandability.

[0033] The working principle of the irregular hexagon sound absorption structure sound barrier of the present utility model is briefly described below.

[0034] The irregular hexagon sound absorption structure is provided on the sound absorption panel 11. By using the friction and viscous action between sound waves and air molecules and sound absorption materials during propagation, the sound energy is converted into heat energy and consumed, and the acoustic performance can be effectively adjusted to adapt to a variety of target noise reduction ranges; secondly, the irregular hexagon can better disperse pressure, withstand a certain external force and impact, is not easy to deform and damage, extends the service life, and makes the sound barrier panel have higher strength and stability; finally, the irregular hexagon structure has a smooth appearance and can be designed with spraying, anodic oxidation, etc. according to local characteristics, improving the overall aesthetic degree of the sound barrier.

[0035] The utility model provides an irregular hexagon sound-absorbing structure sound barrier. By constructing an irregular hexagon sound-absorbing structure on the sound-absorbing panel, phenomena such as reflection, refraction and diffraction of sound waves occur, changing the propagation direction of sound waves and reducing the sound energy directly reaching the sound receiving point. At the same time, it causes the friction and viscosity between air molecules and the pore wall, increasing the reflection and absorption of noise in the cavity. In addition, by changing the depth of the sound-absorbing hole structure and increasing the sound-absorbing area of the screen body, the purpose of broadband sound absorption is achieved, and effective noise reduction of different frequency noises is realized.

[0036] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An irregular hexagonal sound absorbing structure sound barrier, characterized in that: include: The sound barrier screen body (1) and the fixing component (2), wherein the sound barrier screen body (1) is fixedly mounted on the inner side of the fixing component (2). The sound barrier screen body (1) comprises a sound absorbing panel (11), sound absorbing cotton (12), and a sound insulating back plate (13); the sound insulating back plate (13) and the sound absorbing panel (11) are formed by welding, and the sound absorbing cotton (12) is sandwiched between the two plates; A large number of sound absorbing holes (111) are attached to the sound absorbing panel (11), and an irregular hexagonal sound absorbing structure is also provided on the sound absorbing panel (11), wherein the irregular hexagonal sound absorbing structure is formed by sequentially splicing three inner arcs distributed in a circular array and three outer arcs distributed in a circular array.

2. The irregular hexagonal sound absorbing structure sound barrier according to claim 1, characterized in that: The sound-absorbing cotton (12) comprises a first layer of sound-absorbing cotton (121) and a second layer of sound-absorbing cotton (122).

3. The irregular hexagonal sound absorbing structure sound barrier according to claim 1, characterized in that: The sound-absorbing cotton (12) is selected from one of glass wool sound-absorbing cotton, rock wool sound-absorbing cotton, and polyester fiber sound-absorbing cotton.

4. The irregular hexagonal sound absorbing structure sound barrier according to claim 1, characterized in that: The sound absorbing panel (11) has a thickness of 5 mm to 10 mm.

5. The irregular hexagonal sound absorbing structure sound barrier according to claim 4, characterized in that: The thickness of the sound absorbing panel (11) is specifically 10 mm.

6. The irregular hexagonal sound absorbing structure sound barrier according to claim 1, characterized in that: The sound absorption holes (111) are evenly laid on the surface of the sound absorption panel, and the hole diameter of the sound absorption holes (111) is 0.5 mm to 2 mm.

7. The irregular hexagonal sound absorbing structure sound barrier according to claim 6, characterized in that: The specific diameter of the sound absorption hole (111) is 2 mm.

8. The irregular hexagonal sound absorbing structure sound barrier according to claim 1, characterized in that: The fixing member (2) comprises a column (21), a clamping plate (22) fixed to the column (21), and a slot (23); the left and right ends of the sound barrier screen body (1) are connected to the clamping plate (22) or to the slot (23).

9. The irregular hexagonal sound absorbing structure sound barrier according to claim 8, characterized in that: The clamping plate (22) comprises a first clamping plate (221) and a second clamping plate (222), and the distance between the first clamping plate (221) and the second clamping plate (222) matches the thickness of the sound barrier screen body (1).

10. The irregular hexagonal sound absorbing structure sound barrier according to claim 1, characterized in that: A guardrail (3) is provided at the bottom of the sound barrier screen body (1), and the sound barrier screen body (1) is then arranged on the guardrail (3) by plugging.

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