CN219364368U - Highway noise reduction plate - Google Patents

Abstract

The highway noise reduction plate comprises an outer frame and a sound absorption layer, wherein the outer frame comprises an inner side plate and an outer side plate, the sound absorption layer is arranged between the inner side plate and the outer side plate and is formed by filling a plurality of sound absorption blocks, and one side, close to the inner side plate, of the sound absorption blocks is provided with a recess. The highway noise reduction board changes the traditional highway noise reduction mode, sound is converted into sound absorption by sound insulation, and the sound absorption blocks in the attraction layer can greatly reduce noise energy and noise pollution.

Description

Highway noise reduction plate

Technical Field

The utility model relates to the field of highway noise reduction, in particular to a highway noise reduction plate.

Background

Road noise is mainly generated in the running process of vehicles, the influence range is wide, the duration time is long, and people can feel symptoms such as hearing impairment, sleep quality reduction, abnormal physiological system, poor psychological state and the like after touching the noise for a long time, and especially residents living beside the road are seriously ill.

In order to reduce the influence of noise on residents, a great deal of place begins to lay the acoustic baffle on a large scale, and the working principle of traditional acoustic baffle is sound insulation, namely noise is blocked between the acoustic baffles on both sides of a highway, and sound waves are transmitted to the acoustic baffles and then rebound, so that the energy of the sound waves is gradually reduced, and the noise reduction effect is achieved. However, this approach has many drawbacks, for example, after the sound wave bounces, it may not contact the opposite baffle plate and propagate obliquely upward, so that part of the sound wave "escapes", and a great deal of noise is still felt by the residents living in the high floors.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a highway noise reduction plate;

in order to achieve the above purpose, the utility model adopts the following technical scheme: the highway noise reduction plate comprises an outer frame and a sound absorption layer, wherein the outer frame comprises an inner side plate and an outer side plate, the sound absorption layer is arranged between the inner side plate and the outer side plate and is formed by filling a plurality of sound absorption blocks, and one side, close to the inner side plate, of the sound absorption blocks is provided with a recess.

Preferably, the inside of the sound absorption block is glass fiber cotton, and the outer layer of the sound absorption block is wrapped by fiber cloth.

Preferably, a space is left between two adjacent sound-absorbing blocks.

Preferably, the sound absorbing blocks are tightly connected.

Preferably, the inner side plate is provided with a plurality of through holes communicated with the sound absorbing layer.

Preferably, a plurality of shielding plates are further arranged on the inner side plate, and the shielding plates are in one-to-one correspondence with the through holes.

Preferably, the shutter is disposed downward.

Compared with the prior art, the utility model has the beneficial effects that: the highway noise reduction board changes the traditional highway noise reduction mode, sound is converted into sound absorption by sound insulation, and the sound absorption blocks in the attraction layer can greatly reduce noise energy and noise pollution.

Drawings

FIG. 1 is a schematic view of a highway noise reduction plate according to the present utility model;

fig. 2 is a schematic structural view of the noise reduction board for expressway according to the present utility model.

Detailed Description

For a further understanding of the objects, construction, features, and functions of the utility model, reference should be made to the following detailed description of the preferred embodiments.

Referring to fig. 1-2, an embodiment of the highway noise reduction board of the present utility model includes an outer frame 1 and a sound absorption layer 2, wherein the outer frame 1 includes an inner side plate 3 and an outer side plate 4, the sound absorption layer 2 is located between the inner side plate 3 and the outer side plate 4, the sound absorption layer 2 is filled with a plurality of sound absorption blocks 5, and a recess 6 is disposed on a side of the sound absorption block 5 adjacent to the inner side plate 3. The arrangement of the concave 6 increases the surface area of the sound-absorbing block 5, and greatly improves the sound-absorbing amount of the sound-absorbing block 5.

Preferably, the inside of the sound absorbing block 5 is glass fiber cotton, and the outer layer of the sound absorbing block is wrapped by fiber cloth. The glass fiber cotton has excellent sound absorption performance, stable property and difficult decay, and is a good sound absorption material. The fiber cloth maintains the shape of the sound-absorbing block 5.

Preferably, a space is left between two adjacent sound-absorbing blocks 5. The arrangement of the spaces also serves to increase the surface area of the sound-absorbing block and to increase the sound-absorbing capacity of the sound-absorbing block 5.

Preferably, the sound-absorbing blocks 5 are tightly connected. The sound absorption block 5 can be integrally formed, one side of the sound absorption block, which is close to the inner side plate 3, is wavy, and the sound absorption block is convenient to produce and install and can be integrally placed into the sound absorption layer 2.

Preferably, the inner panel 3 is provided with a plurality of through holes 7 communicating with the sound absorbing layer 2.

Preferably, a plurality of shielding plates 8 are further arranged on the inner side plate 3, and the shielding plates 8 are in one-to-one correspondence with the through holes 7.

Preferably, the shutter 8 is disposed downward. The shielding plate downward prevents rainwater from flushing into the sound absorption layer 2, and the service life of the noise reduction plate is prolonged.

The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (7)

1. Highway board of making an uproar falls, including frame (1) and sound absorbing layer (2), frame (1) are including interior side board (3) and exterior side board (4), sound absorbing layer (2) are located between interior side board (3) and exterior side board (4), its characterized in that: the sound absorbing layer (2) is formed by filling a plurality of sound absorbing blocks (5), and a concave (6) is arranged on one side, close to the inner side plate (3), of the sound absorbing blocks (5).

2. The highway noise reduction plate of claim 1, wherein: the inside of the sound absorption block (5) is glass fiber cotton, and the outer layer of the sound absorption block is wrapped by fiber cloth.

3. The highway noise reduction plate of claim 1, wherein: a space is reserved between two adjacent sound absorption blocks (5).

4. The highway noise reduction plate of claim 1, wherein: the sound absorption blocks (5) are tightly connected.

5. The highway noise reduction plate of claim 1, wherein: the inner side plate (3) is provided with a plurality of through holes (7) communicated with the sound absorbing layer (2).

6. The highway noise reduction plate of claim 5, wherein: a plurality of shielding plates (8) are further arranged on the inner side plate (3), and the shielding plates (8) are in one-to-one correspondence with the through holes (7).

7. The highway noise reduction plate of claim 6 wherein: the shielding plate (8) is arranged downwards.