KR19990048317A - Sound absorption type soundproof wall - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound absorbing sound barrier, comprising: a first wall (10) provided with a sound absorbing chamber (14) formed by a honeycomb grating (12), and a sound absorbing chamber (24) formed by a honeycomb grating (22). And a second wall 20 attached to the first wall 10, and the grids 12 and 22 of the first wall 10 and the second wall 20 are alternately bonded to each other. The sound absorbing chambers 14 and 24 communicate with each other. In addition, between the first wall 10 and the second wall 20, a porous foam member 30 having an internal structure of an open cell structure is further installed. According to the present invention as described above can be recycled waste tire and there is an advantage that the suction effect is better.

Description

Sound absorption type soundproof wall

The present invention relates to a soundproof wall, and more particularly, to a sound absorbing soundproof wall manufactured by using a recycled waste tire and absorbing sound more effectively to perform soundproofing.

In general, the sound barrier has a reflection type and a sound absorption type. First, the reflective sound barrier blocks the noise generated from the noise source and blocks the transmission of the noise from the noise source to the other side, and the sound absorbing sound barrier blocks the transmission of the noise from the noise source to the other side.

The double sound-absorbing soundproof wall is provided with a sound absorbing chamber inside the wall so that the noise is attenuated by the sound absorbing chamber to block the transmission of noise.

However, the conventional sound-absorbing sound barriers are generally not satisfactory in sound absorption performance, and thus, it is one of the biggest problems in this field to further improve the sound absorbing performance of the sound insulation walls.

The present invention is to solve the conventional problems as described above, to provide a sound-absorbing soundproof wall that can protect the environment by maximizing the sound-absorbing performance and recycling the waste tire to make the internal structure more suitable for sound absorption.

1 is a partially cutaway plan view showing a configuration of a sound absorbing sound barrier according to the present invention;

Figure 2 is an exploded perspective view showing the configuration of the sound absorbing sound barrier according to the present invention.

3 is a cross-sectional view taken along the line A-A 'of FIG. 1 showing the configuration of a sound absorbing sound barrier according to the present invention.

Explanation of symbols on the main parts of the drawings

1: soundproof wall 10: first wall

12: lattice 14: sound absorption chamber

20: second wall 22: grid

24: sound-absorbing chamber 30: breathable foam foam member

In order to achieve the object of the present invention as described above, a first wall having a sound absorbing chamber formed by a honeycomb lattice and a sound absorbing chamber formed by a honeycomb lattice are provided and joined to the first wall. A soundproof soundproof wall is provided, which is composed of a wall, and the lattice of the first wall and the second wall are alternately bonded to each other so that the sound absorbing chambers communicate with each other.

Between the first wall and the second wall is further provided a porous foam member having an open structure (OPEN CELL) structure. According to such a configuration, the attenuation of the noise is more effectively achieved by the sound absorbing chamber and the breathable foam foam member formed to communicate with each other.

The first wall and the second wall are made of a waste tire rubber powder, rubber-based latex, and synthetic resin latex by mixing 10-20 parts, and applying a pressure of 150 kg / cm 2 at room temperature. Is composed of waste tire powder, density 0.1-0.3g / cm 3 urethane foam, and density 0.2-0.5 g / cm 3 PE foam so that waste tires can be recycled to help protect the environment. The size of the waste tire rubber powder is about 40 mesh to 15 mesh.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the sound-absorbing sound barrier according to the present invention as described above will be described in detail.

1 is a partially cutaway perspective view showing the configuration of a sound absorbing sound barrier according to the present invention, Figure 2 is an exploded perspective view showing the configuration of a sound absorbing sound barrier according to the present invention, Figure 3 is a cross-sectional view showing the configuration of a sound absorbing sound barrier according to the present invention. to be.

As shown in these figures, the outer surface side of the first wall 10 is formed of a flat wall surface. On the inner surface side of the first wall 10, a honey comb lattice 12 is continuously formed in all directions. The sound absorbing chamber 14 is formed by the gratings 12 as described above. The surface of the first wall is sprayed by mixing 10-30% calcium carbonate with water-soluble EVA latex.

The second wall is joined to the first wall 10. The outer surface side of the second wall 20 is also formed as a flat wall surface. On the inner surface side of the second wall 20, a honeycomb lattice 22 is also formed continuously in all directions. In addition, the sound absorbing chamber 24 is formed by the gratings 22. The surface of the second wall is also sprayed by mixing 10-30% of calcium carbonate to the water-soluble EVA latex.

On the other hand, the first wall 10 and the second wall 20, the lattice 12, 22 are alternately bonded to each other so that the sound absorbing chamber (14, 24) provided in each of the wall (10, 20) is staggered with each other All sound absorbing chambers 14 and 24 are in communication with each other. In this way, all the sound absorption chambers 14 and 24 formed in the soundproof wall 1 communicate.

On the other hand, as a modification of the sound-absorbing sound-proof wall 1 according to the present invention may be further provided with a breathable foam foam member 30 between the first wall 10 and the second wall (20). Such a breathable foam member 30 has an internal structure of the open cell (OPEN CELL) structure. The breathable foam member 30 has a density of 0.09-0.4 g / cm 3.

And the material which forms the soundproof wall 10 by this invention is examined. First, the material of the first wall and the second wall is manufactured by mixing 10-20 parts of waste tire rubber powder, rubber-based latex and synthetic resin latex, and applying a pressure of 150 kg / cm 2 at room temperature.

In addition, the breathable foam 30 is composed of waste tire powder, a urethane foam having a density of 0.1-0.3 g / cm 3, and a PE foam having a density of 0.2-0.5 g / cm 3.

Hereinafter, the operation of the sound-absorbing sound barrier according to the present invention as described above in detail.

In the sound-absorbing soundproof wall 1 according to the present invention, a plurality of sound absorbing chambers 14 and 24 formed by the gratings 12 and 22 in the soundproof wall 1 communicate with each other, and these sound-absorbing chambers 14 and 24 communicate with each other. The sound is attenuated by sound transmission between).

In addition, sound is passed through the breathable foam member 30 provided between the first wall 10 and the second wall 20 to absorb sound.

In addition, waste tire powder is used for the first wall 10, the second wall 20, and the breathable foam form member 30 forming the soundproof wall 1, respectively. By using the waste tire powder as described above, the production cost of the soundproof wall 10 of the present invention is lowered, and the used waste tires can be recycled, thereby greatly protecting the environment.

On the other hand, the process of manufacturing the soundproof wall 10 according to the present invention as described above is as follows. First, the waste tire is ground to a size of about 40 to 15 mesh, and the rubber latex and the synthetic resin latex are mixed in the range of 10 to 20 parts. Then, the mixed material is pressurized at a pressure of about 150 kg / cm 3 at room temperature to form the first and second walls 10 and 20 having the grids 12 and 22 in a plate shape.

Then, the first wall 10 and the second wall 20 formed in a plate shape as described above are joined to each other. At this time, the gratings 12 and 22 of the first wall 10 and the second wall 20 are alternately bonded to each other so that the sound absorbing chambers 14 and 24 communicate with each other.

As another example, the breathable foam member 30 may be inserted between the first wall 10 and the second wall to be joined. Even in this case, the sound is attenuated by passing through the sound-absorbing chambers 14 and 24 through the breathable foam foam member 30 to absorb sound.

And finally, the chemical | medical treatment of the outer surface of the 1st wall body 10 and the 2nd wall body 20 which become the outer surface of the said soundproof wall 1 is carried out. In this case, 10-30% of calcium carbonate is mixed with water-soluble EVA latex and sprayed on the surface through the spray process.

The sound-absorbing soundproof wall according to the present invention as described in detail above is made of waste tire rubber powder as a base material, so there are many effects on environmental conservation, and the sound-absorbing chambers formed inside communicate with each other, so that the sound-absorbing performance becomes better. There is.

Claims (6)

A first wall with a sound absorbing chamber formed by a honeycomb lattice, and a second wall provided with a sound absorbing chamber formed by a honeycomb lattice and bonded to the first wall, wherein the first wall and the second wall And the gratings of the wall are alternately bonded to each other so that the sound absorbing chambers communicate with each other. The sound absorbing soundproof wall according to claim 1, wherein a breathable foam member having an open cell structure is further provided between the first wall and the second wall. The sound-absorbing sound barrier according to claim 2, wherein the breathable foam member has a density of 0.09-0.4 g / cm 3. The material of any one of claims 1 to 3, wherein the material of the first wall and the second wall is 150 kg of pressure at room temperature by mixing 10-20 parts of a waste tire rubber powder, rubber-based latex and synthetic resin latex. Sound-absorbing sound barrier, characterized in that the production by adding / ㎠. The sound absorbing type according to claim 2 or 3, wherein the breathable foam is composed of waste tire powder, a urethane foam having a density of 0.1-0.3 g / cm 3, and a PE foam having a density of 0.2-0.5 g / cm 3. Soundproof walls. The sound absorbing sound barrier according to claim 1, wherein the outer surfaces of the first wall and the second wall are sprayed with 10-30% calcium carbonate mixed with a water-soluble EVA latex.