A rainwater diversion type sound barrier

Abstract

The present invention discloses a rainwater diversion type sound barrier, comprising a metal frame, a partition is vertically welded between the middle positions of the inner surface of the metal frame, a sound absorption cavity and a rainwater collection and diversion cavity are opened inside the metal frame, a sound absorption panel is arranged inside the sound absorption cavity, a sound absorption layer is fixedly installed on the rear surface of the sound absorption panel, a plurality of groups of microholes are evenly opened between the front and rear surfaces of the sound absorption panel, a drainage hole is opened at the bottom of the metal frame, and a diversion plate is installed at the lower part of the metal frame; the present invention is a multifunctional sound barrier integrating sound absorption function, sound insulation function, water diversion function and drainage function, which can realize the noise reduction function while concentrating and diverting the rainwater on the back of the sound barrier to the elevated road surface, and then discharge it through the rainwater outlet on the side of the elevated road, effectively solving the problem that rainwater flows down to the bottom of the elevated road and affects the safety of vehicles and pedestrians on the ground road.

Description

Technical Field

[0001] The present invention relates to the technical field of urban traffic noise reduction, and in particular to a rainwater diversion type sound barrier. Background Art

[0002] With the acceleration of urbanization, public transportation facilities such as urban expressways and rail transit have developed rapidly, and the traffic noise pollution generated has become increasingly prominent. Traffic noise has become the main source of pollution for sensitive residences on both sides. Building sound barriers is an important technical means to control traffic noise pollution. A sound barrier is an acoustic baffle standing between the noise source and the sound receiving point, which separates the sound source from the protected target, causing a significant additional attenuation in the propagation of sound waves, thereby reducing the noise impact in the area where the protected target is located.

[0003] When using traditional sound barriers, since many of the expressways and rail transit in the city center area are in the form of elevated bridges, and ground roads are paved under the elevated bridges, if sound barriers are installed on the side of the elevated bridge, when it rains, rainwater will fall behind the sound barriers and flow along the sound barriers to under the elevated bridge, forming a water curtain, which interferes with driving and pedestrians on the ground road under the elevated bridge and affects traffic safety. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a rainwater diversion type sound barrier.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A rainwater diversion type sound barrier comprises a metal frame, a partition is vertically welded between the middle positions of the inner surface of the metal frame, and a sound absorption cavity and a rainwater collection and diversion cavity are opened inside the metal frame, a sound absorption panel is arranged inside the sound absorption cavity, and the sound absorption panel is fixedly installed between the front edge positions of the inner surface of the metal frame, a sound absorption layer is fixedly installed on the rear surface of the sound absorption panel, and the sound absorption layer is filled between the partition and the sound absorption panel, the sound absorption layer is fixedly installed at the front surface position of the partition, a plurality of groups of micropores are evenly opened between the front and rear surface positions of the sound absorption panel, H-shaped steel columns are welded at both sides of the outer surface of the metal frame, a drainage hole is opened at the bottom of the metal frame, and a diversion plate is installed at the lower part of the metal frame.

[0007] Preferably, the interior of the rainwater collection and diversion cavity is filled with a louvered water receiving back plate, and the louvered water receiving back plate is fixedly installed on the rear surface of the partition, and a water diversion groove is opened inside the louvered water receiving back plate, and the bottom of the water diversion groove corresponds to the drainage hole.

[0008] Preferably, the interior of the rainwater collection and diversion cavity is filled with a metal back plate, and the metal back plate is welded to the rear surface of the partition, a diversion groove is opened inside the metal back plate, a water receiving hole is opened on the top of the metal frame, and the top of the diversion groove corresponds to the water receiving hole, and the bottom of the diversion groove corresponds to the drainage hole.

[0009] Preferably, the partition is arranged between the sound absorption cavity and the rainwater collection and diversion cavity, and the rainwater collection and diversion cavity is arranged behind the sound absorption cavity.

[0010] Preferably, the sound-absorbing panel is made of a sound-absorbing aluminum plate, the micropores are in a triangular pyramidal structure, several groups of micropores are evenly distributed, and the distance between two adjacent groups of micropores is 2 mm.

[0011] Preferably, the angle between the guide plate and the metal frame is 20-80 degrees.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In the present invention, the sound source and the protected target are separated by a sound absorbing structure composed of a sound absorbing layer and a sound absorbing panel in the sound absorbing cavity, so that the propagation of sound waves has a significant additional attenuation, thereby reducing the noise impact in the area where the protected target is located, and achieving the purpose of noise reduction. The triangular pyramid wave-shaped micropores in the sound absorbing panel cause the reflected sound waves to collide and interfere with each other and produce attenuation, thereby achieving a good sound absorption effect;

[0014] 2. In the present invention, after the rainwater flows out from the bottom of the sound barrier along the drainage hole, it is guided to the front of the viaduct anti-collision guardrail by the guide plate arranged under the screen body, and then flows to the road surface, and is finally collected by the rainwater outlet on the roadside, thereby effectively solving the problem of rainwater flowing down to the bottom of the viaduct and affecting the safety of vehicles and pedestrians on the ground road;

[0015] In summary, the sound barrier is a multifunctional sound barrier that integrates sound absorption, sound insulation, water conduction and drainage functions. It can achieve the noise reduction function while concentrating the rainwater on the back of the sound barrier and diverting it to the elevated road surface, and then discharge it through the elevated roadside rainwater outlet, effectively solving the problem of rainwater flowing down to the bottom of the elevated road and affecting the safety of vehicles and pedestrians on the ground road. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A longitudinal cross-sectional view of a first embodiment of a rainwater diversion type sound barrier proposed by the present invention;

[0017] Figure 2 This is a partial enlarged view of the first embodiment of a rainwater diversion type sound barrier proposed by the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of a rainwater diversion type sound barrier proposed by the present invention;

[0019] Figure 4 This is a longitudinal cross-sectional view of Example 2 of a rainwater diversion type sound barrier proposed by the present invention.

[0020] In the figure: 1 metal frame, 2 partition, 3 sound absorption cavity, 4 rainwater collection and diversion cavity, 5 sound absorption layer, 6 sound absorption panel, 7 micropores, 8 H-shaped steel column, 9 louver hole water receiving back plate, 10 water diversion trough, 11 drainage hole, 12 diversion plate, 13 metal back plate, 14 water receiving hole, 15 diversion trough. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Embodiment 1

[0023] Reference Figure 1-3 A rainwater diversion type sound barrier comprises a metal frame 1, a partition 2 is vertically welded between the middle positions of the inner surface of the metal frame 1, and a sound absorption cavity 3 and a rainwater collection and diversion cavity 4 are opened inside the metal frame 1, a sound absorption panel 6 is arranged inside the sound absorption cavity 3, and the sound absorption panel 6 is fixedly installed between the front edge positions of the inner surface of the metal frame 1, a sound absorption layer 5 is fixedly installed on the rear surface of the sound absorption panel 6, and the sound absorption layer 5 is filled between the partition 2 and the sound absorption panel 6, the sound absorption layer 5 is fixedly installed on the front surface position of the partition 2, a plurality of groups of micropores 7 are evenly opened between the front and rear surface positions of the sound absorption panel 6, H-shaped steel columns 8 are arranged on both sides of the outer surface of the metal frame 1, a drainage hole 11 is opened at the bottom of the metal frame 1, and a guide plate 12 is installed at the lower part of the metal frame 1.

[0024] The interior of the rainwater collecting and diversion chamber 4 is filled with a louvered water-receiving back plate 9, and the louvered water-receiving back plate 9 is fixedly installed on the rear surface of the partition 2. A water diversion trough 10 is opened inside the louvered water-receiving back plate 9. The louvered water-receiving back plate 9 installed in the rainwater collecting and diversion chamber 4 is installed on the back of the screen body, and cooperates with the water diversion trough 10 to realize that rainwater flows in from the back of the sound barrier and flows out along the bottom, and the bottom of the water diversion trough 10 corresponds to the drainage hole 11. The partition 2 is arranged between the sound absorption chamber 3 and the rainwater collecting and diversion chamber 4, and the rainwater collecting and diversion chamber 4 is arranged behind the sound absorption chamber 3. The sound absorption panel 6 is made of sound-absorbing aluminum plate, and the micropores 7 are triangular cone-shaped. Several groups of micropores 7 are evenly distributed. The distance between two adjacent groups of micropores 7 is 2mm. The angle between the guide plate 12 and the metal frame 1 is 20-80 degrees and tilted inwardly toward the elevated frame.

[0025] Embodiment 2

[0026] Reference Figure 3-4A rainwater diversion type sound barrier comprises a metal frame 1, a partition 2 is vertically welded between the middle positions of the inner surface of the metal frame 1, and a sound absorption cavity 3 and a rainwater collection and diversion cavity 4 are opened inside the metal frame 1, a sound absorption panel 6 is arranged inside the sound absorption cavity 3, and the sound absorption panel 6 is fixedly installed between the front edge positions of the inner surface of the metal frame 1, a sound absorption layer 5 is fixedly installed on the rear surface of the sound absorption panel 6, and the sound absorption layer 5 is filled between the partition 2 and the sound absorption panel 6, the sound absorption layer 5 is fixedly installed on the front surface position of the partition 2, a plurality of groups of micropores 7 are evenly opened between the front and rear surface positions of the sound absorption panel 6, H-shaped steel columns 8 are arranged on both sides of the outer surface of the metal frame 1, a drainage hole 11 is opened at the bottom of the metal frame 1, and a guide plate 12 is installed at the lower part of the metal frame 1.

[0027] The interior of the rainwater collection and diversion cavity 4 is filled with a metal back plate 13, and the metal back plate 13 is welded to the rear surface of the partition 2. A diversion groove 15 is opened inside the metal back plate 13, and a water receiving hole 14 is opened on the top of the metal frame 1. Rainwater flows in from the top of the sound barrier along the water receiving hole 14, enters the diversion groove 15 in the metal back plate 13 installed in the rainwater collection and diversion cavity 4 for direction transmission, and then flows out along the bottom. The top of the diversion groove 15 corresponds to the water receiving hole 14, and the bottom of the diversion groove 15 corresponds to the drainage hole 11. The partition 2 is arranged between the sound absorption cavity 3 and the rainwater collection and diversion cavity 4, and the rainwater collection and diversion cavity 4 is arranged behind the sound absorption cavity 3. The sound absorption panel 6 is made of sound-absorbing aluminum plate, and the micropores 7 are triangular cone-shaped. Several groups of micropores 7 are evenly distributed. The distance between two adjacent groups of micropores 7 is 2mm. The angle between the guide plate 12 and the metal frame 1 is inclined 20-80 degrees toward the elevated frame.

[0028] Working principle: The metal frame 1 serves as the screen frame of the sound barrier, providing installation support for the sound absorption and noise reduction structure and the rainwater diversion structure. The partition 2 divides the space inside the metal frame 1 into a sound absorption chamber 3 and a rainwater collection and diversion chamber 4. The sound absorption chamber 3 is located on one side of the road. The sound absorption structure composed of a sound absorption layer 5 and a sound absorption panel 6 separates the sound source from the protection target, so that the sound wave propagation has a significant additional attenuation, thereby reducing the noise impact in the area where the protection target is located and achieving the purpose of noise reduction. The triangular cone wave-shaped micropores 7 in the sound absorption panel 6 cause the reflected sound waves to collide and interfere with each other and produce attenuation, achieving a good sound absorption effect. The H-shaped steel column 8 has the advantage of large bearing capacity to achieve a sound barrier. The barrier is fixed vertically between the noise source and the sound receiving point. After the rainwater flows out from the bottom of the sound barrier along the drainage hole 11, it is led to the front of the viaduct anti-collision guardrail by the guide plate 12 arranged under the screen body, and then flows to the road surface, and is finally collected by the rainwater outlet on the roadside, thereby effectively solving the problem of rainwater flowing down to the bottom of the viaduct and affecting the safety of vehicles and pedestrians on the ground road. In the present invention, the sound barrier is a multifunctional sound barrier integrating sound absorption function, sound insulation function, water diversion function and drainage function. It can realize the noise reduction function while concentrating the rainwater on the back of the sound barrier and diverting it to the elevated road surface, and then discharged through the rainwater outlet on the roadside of the elevated road, effectively solving the problem of rainwater flowing down to the bottom of the viaduct and affecting the safety of vehicles and pedestrians on the ground road.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rainwater diversion type sound barrier, comprising a metal frame (1), characterized in that: A partition (2) is vertically welded between the middle positions of the inner surface of the metal frame (1), and a sound absorption cavity (3) and a rainwater collection and diversion cavity (4) are provided inside the metal frame (1). A sound absorption panel (6) is provided inside the sound absorption cavity (3). The sound absorption panel (6) is fixedly installed between the front edge positions of the inner surface of the metal frame (1). A sound absorption layer (5) is fixedly installed on the rear surface of the sound absorption panel (6), and the sound absorption layer (5) is filled between the partition (2) and the sound absorption panel (6). The sound absorption layer (5) is fixedly installed at the front surface position of the partition (2). A plurality of groups of micropores (7) are evenly provided between the front and rear surface positions of the sound absorption panel (6). H-shaped steel columns (8) are provided at both sides of the outer surface of the metal frame (1). A drainage hole (11) is provided at the bottom of the metal frame (1), and a diversion plate (12) is installed at the lower part of the metal frame (1); The rainwater collection and diversion cavity (4) is filled with a louvered water receiving back plate (9), the louvered water receiving back plate (9) is fixedly mounted on the rear surface of the partition (2), a water diversion groove (10) is provided inside the louvered water receiving back plate (9), and the bottom of the water diversion groove (10) corresponds to the drainage hole (11); or The rainwater collection and diversion cavity (4) is filled with a metal back plate (13), and the metal back plate (13) is welded to the rear surface of the partition (2); a diversion groove (15) is provided inside the metal back plate (13); a water receiving hole (14) is provided on the top of the metal frame (1); the top of the diversion groove (15) corresponds to the water receiving hole (14), and the bottom of the diversion groove (15) corresponds to the drainage hole (11); The partition plate (2) is arranged between the sound absorption chamber (3) and the rainwater collection and diversion chamber (4), and the rainwater collection and diversion chamber (4) is arranged behind the sound absorption chamber (3); The sound absorbing panel (6) is made of a sound absorbing aluminum plate, the micropores (7) are in a triangular pyramid structure, a plurality of groups of micropores (7) are evenly distributed, and the distance between two adjacent groups of micropores (7) is 2 mm.

2. A rainwater diversion type sound barrier according to claim 1, characterized in that: The angle between the guide plate (12) and the metal frame (1) is 20-80 degrees.

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