CN210262780U

CN210262780U - High-efficient sound insulation sound barrier

Info

Publication number: CN210262780U
Application number: CN201920826987.0U
Authority: CN
Inventors: 张保林; 张建伟; 张建成; 管建越
Original assignee: Jiangsu Xinrui Traffic Construction Group Co ltd
Current assignee: Jiangsu Xinrui Traffic Construction Group Co ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-04-07
Anticipated expiration: 2029-06-03

Abstract

The utility model discloses a high-efficiency sound insulation barrier, which comprises brackets at two ends, wherein the lower ends of the brackets are arranged on a roadbed; a plurality of sound insulation boards are spliced between the two brackets to form an integral sound barrier; the sound insulation board comprises a shell and a panel facing the noise source, the periphery of the panel and the shell are fixed, and a sound absorption layer is arranged in a cavity formed by the panel and the shell; the panel is provided with an array concave spherical surface, and the spherical surface is provided with an array sound absorption hole. The utility model aims at providing a simple structure utilizes interior concave spherical surface to carry out the divergence reflection to the sound wave, and the whole sound absorbing effect of reinforcing acoustic celotex board reaches high-efficient syllable-dividing purpose, reduces the raw materials use amount, practices thrift the cost, and processing technology is simple, and the appearance is pleasing to the eye succinct.

Description

High-efficient sound insulation sound barrier

Technical Field

The utility model belongs to the technical field of the highway sound barrier, concretely relates to high-efficient sound insulation sound barrier.

Background

The highway, especially the highway and the railway brings convenience to people's trip and simultaneously brings noise pollution to residents along the line, therefore, the current highway is usually provided with sound insulation walls along the residential area so as to reduce the influence of noise on the residents along the line. The existing sound barrier pursues light, corrosion-resistant, waterproof, sun-proof performance on the material of outside isolation screen, and inside setting attracts the material to absorb the noise, strives to alleviate the quality of whole sound barrier, installation and the management and the maintenance in later stage during the construction of being convenient for. In order to increase the sound absorption effect, the upper part of the common sound insulation screen is set to be arc-shaped, on one hand, the sound insulation screen at the lower part plays a role in keeping out wind and rain, and on the other hand, the reflection of sound waves is increased to achieve the purpose of sound attenuation. But such an arc-shaped structure of the upper end has a limited effect of attenuating the reflection of sound waves.

SUMMERY OF THE UTILITY MODEL

The purpose of the invention is as follows: the utility model aims at providing a sound barrier of simple structure, utilize interior concave spherical surface to carry out the divergent reflection to the sound wave, the whole sound absorbing effect of reinforcing acoustic celotex board reaches high-efficient syllable-dividing purpose, reduces the raw materials use amount, practices thrift the cost, and processing technology is simple, and the appearance is pleasing to the eye succinct.

The technical scheme is as follows: in order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

a high-efficiency sound insulation barrier comprises brackets at two ends, wherein the lower ends of the brackets are arranged on a roadbed; a plurality of sound insulation boards are spliced between the two brackets to form an integral sound barrier; the sound insulation board comprises a shell and a panel facing the noise source, the periphery of the panel and the shell are fixed, and a sound absorption layer is arranged in a cavity formed by the panel and the shell; the panel is provided with an array concave spherical surface, and the spherical surface is provided with an array sound absorption hole.

Preferably, the diameter of the concave spherical surface is 20-30cm, and the depth is 5-15 cm; the interval between adjacent concave spherical surfaces is 10-15cm, and the whole concave spherical surfaces are in a transverse or longitudinal array or a circular array.

Preferably, the lower end of the sound absorption hole is provided with a slope structure extending inwards the hole, and the slope structure and the sound absorption hole are of an integral structure.

Preferably, the sound absorption layer comprises a sound absorption cotton layer and hollow glass beads; the sound-absorbing cotton layer is arranged at the position close to the back of the shell, and the hollow glass beads are filled between the sound-absorbing cotton layer and the panel.

Preferably, the panel and the shell are connected through a buckle or a bolt and a nut, and a joint of the panel and the shell is provided with a sealing rubber strip or polyurethane foam adhesive for bonding.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is following: the utility model discloses set to concave spherical surface structure at noise reception direction and can carry out divergent reflection to the sound wave and the sound wave after the reflection gets into the sound absorption on the concave spherical surface downthehole by the sound absorbing material absorption of casing, compares in planar structure's acoustic celotex board and has increased the sound absorbing effect of noise.

The panel with the concave spherical structure is convenient to process and can be directly produced by a stamping process, and compared with a structure which is convex and reflects sound waves, the panel with the concave spherical structure reduces the whole volume of the sound insulation board and the using amount of the sound absorption layer, and saves the cost of raw materials; the weight of the sound insulation board is reduced due to the reduction of the whole volume, and the sound insulation board is convenient to transport and install.

The concave spherical surface plays a role in keeping off rain for the sound absorption holes on the spherical surface, the concave spherical surfaces are arrayed on the whole panel, and the effect of reflecting sound waves is far greater than that of an arc-shaped structure with the upper end of the sound insulation screen bent inwards.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the soundproof plate 2; wherein, the arrow A is a schematic diagram of the propagation direction of the sound wave;

FIG. 3 is an enlarged view at I of FIG. 2;

fig. 4 is a three-dimensional exploded view of the baffle plate 2.

Detailed Description

The invention will be further elucidated with reference to the drawing.

As shown in fig. 1 and 2, the high-efficiency sound insulation barrier comprises brackets 1 at two ends, wherein the lower ends of the brackets 1 are arranged on a roadbed; a plurality of sound insulation boards 2 are spliced between the two brackets 1 to form an integral sound barrier; the sound insulation board 2 comprises a shell 21 and a panel 22 facing a noise source, the periphery of the panel 22 and the shell 21 is fixed, and a sound absorption layer is arranged in a cavity formed by the panel 22 and the shell 21; the panel 22 is provided with an array of concave spherical surfaces 3, and the spherical surfaces 3 are provided with array sound absorption holes 4. When the sound wave is transmitted to the panel 22, the concave spherical surface 3 structure divergently reflects the sound wave and the reflected sound wave enters the sound absorption hole 4 on the concave spherical surface 3 and is absorbed by the sound absorption material in the casing 21, so that the sound absorption effect of the noise is increased compared with the sound insulation plate 2 with a planar structure. The panel 22 with the structure of the concave spherical surface 3 is convenient to process and can be directly produced by a stamping process, compared with the structure of a convex sound wave reflection structure, the whole volume of the sound insulation board 2 and the using amount of a sound absorption layer are reduced, and the raw material cost is saved; the reduction in overall volume reduces the weight of the baffle 2, facilitating transport and installation. On the other hand, the concave spherical surface 3 can shield the sound absorbing holes 4 on the spherical surface from wind and rain, and can shield rain and reflect sound waves even if the upper end of the whole sound barrier is not an inward-bent arc-shaped structure, and the concave spherical surface 3 is arrayed on the whole panel 22, and the effect of reflecting sound waves is far greater than that of the inward-bent arc-shaped structure of the upper end of the sound barrier.

The diameter of the concave spherical surface 3 is 20-30cm, and the depth is 5-15 cm; the interval between the adjacent concave spherical surfaces 3 is 10-15cm, and the whole concave spherical surfaces are in a transverse or longitudinal array or a circular array.

As shown in fig. 3, in order to further prevent dust and rainwater from entering the sound absorption hole 4, the lower end of the sound absorption hole 4 is provided with a slope 5 structure extending inwards into the hole, and the slope 5 structure and the sound absorption hole 4 are integrated into a whole, as shown in fig. 2, the structure can be directly formed when the sound absorption hole 4 is punched, the processing technology is simple, and no additional process is needed; the slope 5 is increased so that part of the rain water entering the sound absorbing hole 4 flows out along the slope 5 and does not enter the cavity between the housing 21 and the panel 22.

The sound absorption layer comprises a sound absorption cotton layer 6 and hollow glass beads 7. Inhale cotton layer 6 setting of sound and be close to casing 21 department, hollow glass microballon 7 is filled and is being inhaled between cotton layer 6 and the panel 22 of sound, because the panel 22 is not flat structure, so adopt small hollow glass microballon 7 can guarantee not leave the space in the cavity, give sound insulation effectually.

As shown in fig. 4, connect through the buckle or connect through bolt and nut between panel 22 and the casing 21, panel 22 and casing 21 junction are equipped with joint strip 8 or polyurethane foam and bond and play further syllable-dividing effect, and panel 22 and casing 21 all adopt the aluminum plate material, have the light, corrosion-resistant, waterproof sun-proof superior performance of matter.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A high-efficient sound insulation sound barrier which characterized in that: the device comprises brackets (1) at two ends, wherein the lower ends of the brackets (1) are arranged on a roadbed; a plurality of sound insulation boards (2) are spliced between the two brackets (1) to form an integral sound barrier; the sound insulation board (2) comprises a shell (21) and a panel (22) facing a noise source, the periphery of the panel (22) and the shell (21) is fixed, and a sound absorption layer is arranged in a cavity formed by the panel (22) and the shell (21); the panel (22) is provided with an array of concave spherical surfaces (3), and the spherical surfaces (3) are provided with array sound absorption holes (4).

2. A high efficiency acoustical sound barrier as set forth in claim 1, wherein: the diameter of the concave spherical surface (3) is 20-30cm, and the depth is 5-15 cm; the interval between the adjacent concave spherical surfaces (3) is 10-15cm, and the whole concave spherical surfaces are in a transverse or longitudinal array or a circular array.

3. A high efficiency acoustical sound barrier as set forth in claim 1, wherein: the lower end of the sound absorption hole (4) is provided with a slope (5) structure extending towards the inside of the hole, and the slope (5) structure and the sound absorption hole (4) are of an integrated structure.

4. A high efficiency acoustical sound barrier as set forth in claim 1, wherein: the sound absorption layer comprises a sound absorption cotton layer (6) and hollow glass beads (7); the sound absorption cotton layer (6) is arranged close to the back of the shell (21), and the hollow glass beads (7) are filled between the sound absorption cotton layer (6) and the panel (22).

5. A high efficiency acoustical sound barrier as set forth in claim 1, wherein: the panel (22) is connected with the shell (21) through a buckle or a bolt and a nut, and a sealing rubber strip (8) or polyurethane foam adhesive is arranged at the joint of the panel (22) and the shell (21).