CN116905401A - Sound barrier with sound insulation and synergy functions - Google Patents

Abstract

This application relates to a sound barrier with enhanced sound insulation, which includes a sound insulation unit, a sound absorption unit and a support frame; the sound insulation unit is light-transmissive and has a first surface facing the noise source and a first surface facing away from the noise source. The second surface of the sound insulation unit; the support frame is arranged around the sound insulation unit, and the sound absorption unit is convexly fixed on the edge area of the first surface of the sound insulation unit through the support frame, and blocks at least a part of the support frame. This application uses a support frame to set up a sound-absorbing unit, and the sound-absorbing unit blocks at least part of the support frame, which does not affect light transmission and ensures the stability of the structure. At the same time, the sound-absorbing unit can capture the reflected sound waves of the sound insulation unit, and the support frame It is partially blocked to reduce the reflection area of sound waves, thereby further reducing noise, making the sound barrier take into account the requirements of light transmission, noise reduction, efficiency improvement, and structural stability.

Description

A sound barrier with enhanced sound isolation

Technical field

This application relates to the technical field of sound barriers, and specifically to a sound barrier with enhanced sound insulation.

Background technique

Sound barriers are an effective means to alleviate urban traffic noise pollution and have been widely used in elevated roads and rail transit near residential areas. When noise waves encounter a sound barrier, the sound barrier can effectively reduce the negative impact of traffic noise on residential areas through absorption, reflection and diffraction of the noise waves. In recent years, our country has also improved the control and treatment of urban road noise pollution. Eleven departments jointly issued the "Guidance on Strengthening the Prevention and Control of Environmental Noise Pollution to Improve the Quality of Urban and Rural Acoustic Environments", which requires roads in areas where noise-sensitive buildings are concentrated Sound insulation barriers will be constructed on both sides. Obviously, the contradiction between transportation convenience and road noise will become more obvious with the development of urban construction. Therefore, against the background of the increasing number of high-rise residential buildings in major urban areas in my country, the domestic demand for sound barriers is growing rapidly.

At present, most sound barriers use a metal frame embedded with transparent sound insulation panels. Under the condition that a suitable light transmission area is reserved to ensure driving comfort, the design of the metal frame part needs to meet the needs of structural stability. However, the metal part is Reflective area and unable to absorb sound. When the area of the metal part is large, it will cause obvious reflection of noise on the road, which can easily cause physical discomfort and fatigue to the driver and passengers. When the area of the metal part is too small, it will affect the overall structural stability. . Therefore, the existing sound barrier structure still cannot meet the requirements of light transmission, noise reduction, and structural stability at the same time.

Contents of the invention

In view of the above technical problems, this application provides a sound barrier with sound insulation and enhanced efficiency, which can simultaneously take into account the requirements of light transmission, noise reduction, and structural stability.

In order to solve the above technical problems, the present application provides a sound barrier with enhanced sound insulation, including a sound insulation unit, a sound absorption unit and a support frame; the sound insulation unit is light-transmissive and has a third wall for facing the noise source. A surface and a second surface facing away from the first surface; the support frame is arranged around the sound insulation unit, and the sound absorption unit is protrudingly fixed on the sound insulation unit through the support frame. The edge area of the first surface covers at least a portion of the support frame.

Optionally, the support frame includes a first part and a second part that are connected to each other and arranged at an angle to each other, the sound insulation unit is fixed on the first part, and the second part protrudes from the sound insulation unit. In the edge area of the first surface, the sound absorbing unit is arranged in the angled space formed by the first part and the second part, and blocks the first part.

Optionally, the sound absorbing unit includes a surface material and a sound absorbing body, and two sides of the surface material in the width direction are fixed to the first part and the second part respectively to connect with the support frame. A receiving cavity is formed, the sound absorbing body is arranged in the receiving cavity, the surface material is provided with through holes, and the sound absorbing body has a porous structure.

Optionally, the first part is provided with a first sliding fitting part, the second part is provided with a second sliding fitting part, and the two sides in the width direction of the surface material are respectively provided with third sliding fitting parts. With a fourth sliding fitting part, the third sliding fitting part cooperates with the first sliding fitting part, and the fourth sliding fitting part cooperates with the second sliding fitting part to fix the surface material at the desired position. on the supporting frame.

Optionally, the first sliding fitting part and the second sliding fitting part are slide grooves extending along the length direction of the support frame, and the third sliding fitting part and the fourth sliding fitting part are sliding grooves extending along the length direction of the support frame. A slide bar extends in the length direction of the surface material, and the slide bar cooperates with the corresponding slide groove.

Optionally, the first sliding fitting part is located at an end of the first part away from the second part, and the second sliding fitting part is located at an end of the second part away from the first part.

Optionally, the first part is provided with a positioning groove that cooperates with the sound insulation unit, and the depth of the positioning groove is smaller than the height of the first part.

Optionally, a buffer layer is provided on a surface of the positioning groove facing the sound insulation unit.

Optionally, the sound absorbing unit has surfaces bent at different angles.

Optionally, the sound absorbing unit has a first surface, a second surface, a third surface and a fourth surface formed by bending, and the included angles between two adjacent surfaces toward the angled space are different, and the The angle is greater than 90 degrees and less than 180 degrees, the first surface is close to the sound insulation unit and perpendicular to the first surface of the sound insulation unit, and the fourth surface is far away from the sound insulation unit and is perpendicular to the first surface of the sound insulation unit. The first surface of the sound insulation unit is parallel.

The sound insulation barrier of the present application includes a sound insulation unit, a sound absorption unit and a support frame; the sound insulation unit is light-transmissive and has a first surface facing the noise source and a third surface facing away from the first surface. Two surfaces; a support frame is arranged around the sound insulation unit, and the sound absorption unit is convexly fixed on the edge area of the first surface of the sound insulation unit through the support frame, and blocks at least a part of the support frame. This application uses a support frame to set up sound-absorbing units, and the sound-absorbing units block at least part of the support frame, which will not affect light transmission and ensure the stability of the structure. At the same time, the sound absorption of the sound-absorbing units can capture the reflected sound waves of the sound-insulating units. The support frame is partially blocked to reduce the reflection area of sound waves, which further reduces noise and enables the sound barrier to take into account the requirements of light transmission, noise reduction, efficiency improvement, and structural stability.

Description of the drawings

Figure 1 is a schematic three-dimensional view of the side facing the noise source of a sound barrier with enhanced sound insulation according to an embodiment;

Figure 2 is a schematic perspective view of the side facing away from the noise source of the sound barrier with enhanced sound insulation according to an embodiment;

Figure 3 is a schematic plan view of the side facing the noise source of the sound barrier with enhanced sound insulation according to an embodiment;

Figure 4 is a schematic plan view of the side facing away from the noise source of the sound barrier with enhanced sound insulation according to an embodiment;

Figure 5 is a cross-sectional view of a sound barrier with enhanced sound insulation according to an embodiment;

Figure 6 is a perspective view of a support frame according to an embodiment;

Figure 7 is a cross-sectional view of a support frame according to an embodiment;

Figure 8 is a schematic exploded view of the sound absorbing unit according to an embodiment;

Figure 9 is a schematic diagram of the matching structure of the sound absorption unit and the support frame according to an embodiment;

Figure 10 is a partial schematic diagram of the matching structure in Figure 9;

Figure 11 is one of the schematic diagrams of the assembly process of the sound barrier according to an embodiment;

Figure 12 is a second schematic diagram of the assembly process of the sound barrier according to an embodiment;

Figure 13 is a third schematic diagram of the assembly process of the sound barrier according to an embodiment;

Figure 14 is a fourth schematic diagram of the assembly process of the sound barrier according to an embodiment.

Detailed ways

The following describes the implementation of the present application through specific embodiments. Those familiar with this technology can easily understand other advantages and effects of the present application from the content disclosed in this specification.

In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the application. It is to be understood that other embodiments may be utilized and mechanical, structural, electrical, as well as operational changes may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting and the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application.

Although in some instances the terms first, second, etc. are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element.

Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprising" and "including" indicate the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not exclude one or more other features, steps, operations, The presence, occurrence, or addition of elements, components, items, categories, and/or groups. The terms "or" and "and/or" as used herein are to be construed as inclusive or to mean any one or any combination. Therefore, "A, B or C" or "A, B and/or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C" . Exceptions to this definition occur only when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some manner.

As shown in Figures 1 to 4, the sound barrier with enhanced sound insulation of the present application includes a sound insulation unit 100, a sound absorption unit 300 and a support frame 200 (Figures 1 and 2 do not illustrate the sound absorption units located on both sides. 300 and support frame 200). The sound insulation unit 100 is light-transmissive and has a first surface 101 facing the noise source (facing the road side) and a second surface 102 facing away from the first surface 101 .

The support frame 200 is arranged around the sound insulation unit 100 . The sound absorption unit 300 is protrudingly fixed on the edge area of the first surface 101 of the sound insulation unit 100 through the support frame 200 and blocks at least a part of the support frame 200 .

In the above structure, the support frame 200 is used to fix the sound insulation unit 100 and the sound absorption unit 300 is provided to ensure the stability of the structure. The sound absorption unit is provided in the edge area of the first surface 101 of the sound insulation unit 100 (facing the road side noise source). 300, which adds a sound absorption function to the existing sound barrier function, can fully dissipate the encountering noise waves within the vertical range of the sound barrier, which can effectively solve the road echo problem and further reduce the decibel intensity on the non-road side. . The sound absorbing unit 300 blocks at least a part of the support frame 200 without affecting light transmission. At the same time, the sound absorbing unit 300 can capture the reflected sound waves of the sound insulation unit 100. The supporting frame 200 is partially blocked by the sound absorbing unit 100, thereby reducing the impact on sound waves. The reflective area has a further noise reduction effect, allowing the sound barrier to take into account the requirements of light transmission, noise reduction, efficiency improvement, and structural stability.

Optionally, the sound insulation unit 100 may be selected from at least one of polymethylmethacrylate (PMMA), polystyrene (PS), polycarbonate (PC), and inorganic glass.

Please refer to Figures 5, 6 and 7 together. The support frame 200 includes a first part 201 and a second part 202 that are connected to each other and arranged at an angle to each other. The sound insulation unit 100 is fixed on the first part 201 and the second part 202 protrudes. In the edge area of the first surface 101 of the sound insulation unit 100, the sound absorption unit 300 is disposed in the angled space formed by the first part 201 and the second part 202, and blocks the first part 201. Preferably, the first part 201 and the second part 202 are arranged at a right angle to achieve better mechanical support effect and facilitate installation. By optimizing the structure of the support frame 200, it can be used to fix the sound insulation unit 100 and the sound absorption unit 300 at the same time, and the overall thickness and quality of the sound barrier will not be significantly increased when the sound absorption unit 300 is installed, which is especially suitable for homes. Install.

Please refer to Figures 8 and 9. The sound absorbing unit 300 includes a surface material 310 and a sound absorbing body 320. The two sides of the surface material 310 in the width direction are respectively fixed to the first part 201 and the second part 202 to connect with the support frame. 200 forms a receiving cavity (refer to the receiving cavity 260 in Figure 12), the sound absorbing body 320 is arranged in the receiving cavity, the surface material 310 is provided with through holes, and the sound absorbing body 320 has a porous structure. Optionally, the surface material 310 is obtained by punching a solid extruded body into holes, and the material can be metal or polymer. The sound absorber 320 has a loose porous structure, which can be formed by randomly or regularly stacking a large number of fibers, or It can be formed by foaming.

Optionally, please refer to Figures 6, 7, 8 and 9 together. The first part 201 is provided with a first sliding fitting part 220, the second part 202 is provided with a second sliding fitting part 230, and the width of the surface material 310 is The two sides in the direction are respectively provided with a third sliding fitting part 302 and a fourth sliding fitting part 303. The third sliding fitting part 302 matches with the first sliding fitting part 220, and the fourth sliding fitting part 303 matches with the second sliding fitting part. The parts 230 cooperate to fix the surface material 310 on the support frame 200 . In this way, through the sliding fit installation, the assembly is flexible and the maintenance and replacement of the sound absorbing unit 300 is facilitated. Specifically, the first sliding fitting part 220 and the second sliding fitting part 230 are slide grooves extending along the length direction of the support frame 200 , and the third sliding fitting part 302 and the fourth sliding fitting part 303 extend along the length direction of the surface material 310 The slide bar cooperates with the corresponding slide groove. The first sliding fitting part 220 is located at an end of the first part 201 away from the second part 202. The second sliding fitting part 230 is located at an end of the second part 202 away from the first part 201. . Among them, the two sides in the width direction of the surface material 310 can be bent toward the corner space of the support frame 200, and a third sliding fitting portion 302 and a fourth sliding fitting portion 303 are provided at the edges of the bent portion. The fitting part 220 and the second sliding fitting part 230 are respectively provided on the side of the first part 201 and the second part 202 facing the corner space. In this way, the structure after installation is compact, beautiful, and reliable.

Please refer to Figures 6, 7 and 10. The first part 201 of the support frame 200 is provided with a positioning groove 210 that cooperates with the sound insulation unit 100. The depth of the positioning groove 210 is less than the height of the first part 201, thereby ensuring that the support frame 200 Strength, and the extension of the positioning groove 210 is used to complete the installation of the sound insulation unit 100 and the sound absorption unit 300, ensuring the light transmission area and sound absorption area of the sound barrier. A buffer layer 125 is provided on the surface of the positioning groove 210 facing the sound insulation unit 100. The buffer layer 125 can further improve the noise isolation effect, and can protect the contact area between the sound insulation unit 100 and the support frame 200, effectively Avoid contact wear. The material of the buffer layer 125 can be any one of polyurethane, rubber, and silicone. The specific size is based on the principle of suitable installation and is not particularly limited.

Please continue to refer to Figure 8. The sound absorbing unit 300 has a surface formed by bending at different angles. That is, the surface material 310 of the sound absorbing unit 300 is bent at different angles, so that the height and width can be increased within the set range. The total area of the surface of facestock 310. Specifically, the sound absorbing unit 300 has a first surface 305, a second surface 306, a third surface 307 and a fourth surface 308 formed by bending. The angles between two adjacent surfaces toward the angled space are different. The angle is greater than 90 degrees and less than 180 degrees. The first surface 305 is close to the sound isolation unit 100 and perpendicular to the first surface 101 of the sound isolation unit 100 . The fourth surface 308 is far away from the sound isolation unit 100 and is connected to the first surface of the sound isolation unit 100 . 101 parallel. In actual implementation, when the area of the fourth surface 308 is small, no through holes may be provided on the fourth surface 308 or the number of through holes may be reduced, so that the fourth sliding fitting part 303 has appropriate strength without significantly affecting sound absorption. The sound absorption effect of the unit 300. On the contrary, when the area of the fourth surface 308 is larger, a larger number of through holes can be provided on the fourth surface 308, which will not significantly affect the strength of the fourth sliding fitting part 303. The sound absorption effect of the sound absorption unit 300 is improved. In this way, by designing the angle between two adjacent surfaces of the surface material 310 to be greater than 90 degrees and less than 180 degrees, the sound absorption area of the sound absorption unit 300 facing the noise source can be increased and the noise reduction effect can be improved.

When assembling the sound barrier, first, as shown in FIG. 11 , connect the third sliding fitting portion 302 and the fourth sliding fitting portion 303 on the surface material 310 of the sound absorbing unit 300 to the first sliding fitting portion 220 on the supporting frame 200 respectively. , the second sliding fitting part 230 cooperates to slidely install the surface material 310 of the sound absorption unit 300 to the support frame 200. After the installation is in place, as shown in Figure 12, the surface material 310 of the sound absorption unit 300 and the support frame A receiving cavity 260 is formed between 200 . Next, as shown in FIG. 13 , the sound absorbing body 320 is installed into the receiving cavity 260 from one side opening of the receiving cavity 260 to form the sound absorbing unit 300 . Finally, the sound insulation unit 100 is installed in the positioning groove 210 of the support frame 200, and a buffer layer 125 is provided between the sound insulation unit 100 and the side wall of the positioning groove 210. When the sound insulation unit 100 is embedded in the positioning groove 210, it can Place the buffer layer 125 of appropriate size in the positioning groove 210 in advance, and then place the sound insulation unit 100, or attach the buffer layer 125 to the surrounding edges of the sound insulation unit 100, and then embed the buffer layer 125 into the positioning groove 210 as a whole. At this point, As shown in FIG. 14 , the assembly of the support frame 200 and the sound absorption unit 300 located on one side of the sound insulation unit 100 is completed. The support frame 200 is assembled from four parts distributed around the sound insulation unit 100. The adjacent parts are connected at the corners of the sound insulation unit 100. The connection is a 45° butt surface, and the connection is achieved through built-in corner codes and imprinting. , the specific implementation process can be referred to the patent application number 202021818225.5. The assembly method of the support frame 200 and the sound absorption unit 300 on each side of the sound insulation unit 100 is the same as before, and will not be described again.

The sound insulation barrier of the present application includes a sound insulation unit, a sound absorption unit and a support frame; the sound insulation unit is light-transmissive and has a first surface facing the noise source and a third surface facing away from the first surface. Two surfaces; a support frame is arranged around the sound insulation unit, and the sound absorption unit is convexly fixed on the edge area of the first surface of the sound insulation unit through the support frame, and blocks at least a part of the support frame. This application uses a support frame to set up a sound-absorbing unit, and the sound-absorbing unit blocks at least part of the support frame, which does not affect light transmission and ensures the stability of the structure. At the same time, the sound-absorbing unit can capture the reflected sound waves of the sound insulation unit, and the support frame It is partially blocked to reduce the reflection area of sound waves, thereby further reducing noise, making the sound barrier take into account the requirements of light transmission, noise reduction, efficiency improvement, and structural stability.

The above embodiments only illustrate the principles and effects of the present application, but are not used to limit the present application. Anyone familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in this application shall still be covered by the claims of this application.

Claims (10)

1. The sound barrier is characterized by comprising a sound insulation unit, a sound absorption unit and a supporting frame; the sound insulation unit has light transmittance and is provided with a first surface for facing a noise source and a second surface opposite to the first surface; the support frame is arranged around the sound insulation unit, and the sound absorption unit is convexly fixed on the edge area of the first surface of the sound insulation unit through the support frame and shields at least a part of the area of the support frame.

2. The sound barrier of claim 1, wherein the support frame comprises a first portion and a second portion connected to each other and disposed at an angle to each other, the sound insulation unit is fixed to the first portion, the second portion protrudes from an edge region of the first surface of the sound insulation unit, and the sound absorption unit is disposed in a corner space formed by the first portion and the second portion and shields the first portion.

3. The sound barrier according to claim 2, wherein the sound absorbing unit includes a panel and a sound absorber, both sides in a width direction of the panel are fixed to the first portion and the second portion, respectively, to form a receiving cavity with the support frame, the sound absorber is disposed in the receiving cavity, the panel is provided with a through hole, and the sound absorber has a porous structure.

4. A sound barrier according to claim 3, wherein the first portion is provided with a first slip fit portion, the second portion is provided with a second slip fit portion, and both sides in the width direction of the facestock are respectively provided with a third slip fit portion and a fourth slip fit portion, the third slip fit portion being fitted with the first slip fit portion, and the fourth slip fit portion being fitted with the second slip fit portion to fix the facestock on the support frame.

5. The sound barrier of claim 4, wherein the first and second slip fit portions are runners extending along a length of the support frame, and the third and fourth slip fit portions are runners extending along a length of the facestock, the runners being engaged with the corresponding runners.

6. The sound barrier of claim 4, wherein the first slip fit is located at an end of the first portion remote from the second portion and the second slip fit is located at an end of the second portion remote from the first portion.

7. The sound barrier of claim 2, wherein the first portion is provided with a positioning groove cooperating with the sound insulation unit, the positioning groove having a depth smaller than a height of the first portion.

8. The sound barrier of claim 7, wherein a surface of the positioning groove facing the sound insulation unit is provided with a buffer layer.

9. The sound barrier of any one of claims 2 to 8, wherein the sound absorbing unit has a surface formed by bending at different angles.

10. The sound barrier of claim 9, wherein the sound absorbing unit has a first face, a second face, a third face, and a fourth face formed by bending, and an included angle between two adjacent faces toward the corner space is different, the included angle is greater than 90 degrees and less than 180 degrees, the first face is adjacent to the sound insulating unit and perpendicular to the first surface of the sound insulating unit, and the fourth face is far from the sound insulating unit and parallel to the first surface of the sound insulating unit.