KR20000017912A - Sound absorbing device of road soundproof wall - Google Patents

Abstract

PURPOSE: A sound absorbing device for a street soundproof wall is provided to completely block noise by prevent the noise being absorbed through a front plate from being reflected by an absorbing plate. CONSTITUTION: A sound absorbing device comprises: forming a concave absorbing aperture(2) into a circular shape on the front surface of a soundproof wall main body(1); arranging the absorbing apertures with a certain interval; forming plural small subsidiary absorbing holes(3) on the concave unit of the absorbing apertures; forming a projecting unit(4) in the upper unit of the soundproof wall main body; and forming a combining groove(5) in the lower end unit of the soundproof wall main body. Therefore, the soundproof wall can be manufactured easily according to the simple structure while the concave absorbing apertures can absorb the noise because the noise can easily reach a sound absorbing material. And the absorbed noise is not reflected for blocking the noise completely, and a vibration is prevented for the noise from being dispersed to the outside of the street through the space unit between the soundproof walls.

Description

Sound Absorption of Soundproof Walls for Roads {SOUND ABSORBING DEVICE OF ROAD SOUNDPROOF WALL}

The present invention relates to a soundproof wall installed at an edge of a road, and has a circular shape of a sound absorbing hole formed on the front surface of the soundproof wall to widen a space where noise is sucked so that a large amount of noise is introduced while being introduced once. The noise is to be completely extinguished by the sound absorbing material, and the object of the present invention is to completely block the noise by minimizing the reflection of the noise sucked through the front panel by the sound absorbing plate.

In general, if there are residential areas, schools, libraries or hospitals in the vicinity of the road, the noise generated while driving the car will cause enormous damage to life. Blocked or reflected.

In other words, the noise barrier used in the prior art is composed of a front plate, a rear plate and a side plate, and a sound absorbing material is inserted between the front and rear plates. When the noise enters through the hole formed in the front, the noise strikes the sound absorbing material and disappears. This is how it is reflected.

However, in the above method, the suction hole was formed on the front plate of the soundproof wall at regular intervals, but when manufacturing the hole, the lower surface was cut by punching the surface of the metal plate and the upper side was bent to form the long hole by protruding the cut portion. It is a constitution.

When sound waves are delivered to the front panel manufactured as described above, the sound waves spread out into waveforms, so that the sound waves hitting the sound absorbing material through the long holes are substantially inferior. Thus, a large number of sound waves hit the front panel and are reflected. There was a problem.

In this way, when the noise is reflected and the sound barriers are installed on both sides of the road, the noise reflected from both sides is raised to the upper side, so that there is a problem that the damage of the noise increases when there is a house at the same height as the sound barrier.

In addition, the conventional soundproof wall was a problem that the sound wave hit the soundproof wall is reflected back to the outside through the long hole even if the noise is introduced into the interior of the soundproof wall through the long hole is not a substantially large sound guide.

On the other hand, the conventional soundproof wall is fixed to the edge of the road with a "H" beam at fixed intervals and then inserts the soundproof wall into the groove between the support and the support, so the soundproof wall is fixed only by the support. If a part is damaged, the sound barrier was shaken or collapsed.

The present invention has been made in order to solve the above problems, a circular suction hole on the front surface of the soundproof wall is formed in a circular suction hole of the circular suction hole to form a small circular suction hole, the noise is easily absorbed into the sound absorbent While being touched and absorbed, the fastening protrusions and grooves are formed on the upper and lower portions of the soundproof wall so as to be easily fastened to prevent shaking. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of the present invention

2 is a cross-sectional view of the coupling state of the present invention

** Description of symbols for the main parts of the drawing **

1. Soundproof wall main body 2. Suction hole 3. Auxiliary suction hole

4. Protruding part 5. Fastening groove

In the soundproof wall in which the sound absorbing material is embedded in the case and the suction hole is formed in the front of the case, the suction holes 2 formed in the front of the soundproof wall body 1 are concave in a circular shape and arranged at regular intervals. (2) formed a plurality of small auxiliary suction hole (3) in the concave part of the soundproof wall main body (1) to form a protrusion (4) and the lower end to form a fastening groove (5) 6 shows a sound absorbing material.

Referring to the installation method of the present invention as described above is as follows.

After installing the H beam at regular intervals, the sound barrier wall main body 1 is inserted into the space between the beam and the beam. At this time, the protrusion 4 formed at the upper end of the soundproof wall body 1 is firmly fixed while being inserted into the fastening groove 5 formed at the lower end of the soundproof wall positioned at the upper portion thereof.

When the noise is generated in the road in the above state, the sound comes into contact with the suction hole 2 formed on the front surface of the soundproof wall body 1, and the sound touching the suction hole 2 hits the concave part, It is to be extinguished by the sound absorbing material provided in the soundproof wall body 1 through the through-hole formed in the.

On the other hand, the noise hitting the concave suction hole (2) hits the concave portion and then hits the other side while being single yarn, which causes noise to be dispersed and introduced into the inside by the small auxiliary suction hole (3) formed around the concave portion. The sound is completely absorbed and extinguished without reflecting noise.

In addition, the sound introduced into the inside through the air intake hole (2) hits the sound absorbing material, but part of it is separated, but a part of the reflected part is reflected by the intake hole (2) because it is curved to the outside of the soundproof wall through the suction hole. This can be prevented.

As described above, the present invention forms a circular suction hole on the front surface of the soundproof wall, but forms a small circular suction hole in the circular suction hole and forms protrusions and fastening grooves at the upper and lower ends of the soundproof wall. As the structure is simple, it is easy to manufacture and the suction hole is concave, so the noise can easily absorb and absorb the sound absorbing agent, and the noise introduced into the soundproof wall is not reflected to the outside, so it can handle the perfect noise. In addition, it is a useful invention to form fastening protrusions and grooves on the upper and lower portions of the soundproof wall so as to be easily fastened and to prevent shaking, and to prevent spreading to the outside of the road through the space between the soundproof wall and the soundproof wall.

Claims (3)

In the soundproof wall in which the sound absorbing material is embedded in the case and the suction hole is formed in the front of the case, the suction holes 2 formed in the front of the soundproof wall body 1 are concave in a circular shape and arranged at regular intervals. (2) a plurality of small auxiliary suction hole (3) is formed in the recess, the upper part of the soundproof wall body (1) is formed by forming a projection (4) and the lower end is characterized in that the fastening groove (5) Sound absorbing device for road sound barriers. The sound absorbing device of a soundproof wall for a road according to claim 1, wherein the suction hole (2) is formed to be concave inside the soundproof wall body (1). The sound absorbing device for a soundproof wall for a road according to claim 1, wherein the soundproof wall main body (1) has a protrusion (4) formed at an upper portion thereof, and a fastening groove (5) formed at a lower end thereof.