KR20160007908A

KR20160007908A - Air Passing Soundproofing Block and Soundproofing Wall Having the Same

Info

Publication number: KR20160007908A
Application number: KR1020140086530A
Authority: KR
Inventors: 고효인; 장승호; 홍지영; 김영찬; 장강석; 윤제원; 서대식; 홍병국
Original assignee: 한국철도기술연구원; 유니슨테크놀러지 주식회사
Priority date: 2014-07-10
Filing date: 2014-07-10
Publication date: 2016-01-21

Abstract

In an air passing soundproofing block installed between props together with soundproofing plates on a soundproofing wall which includes a plurality of props disposed in an upward and downward direction and a plurality of soundproofing plates inserted between the props; disclosed in the present invention are an air passing soundproofing block and a soundproofing wall having the same comprising: a first surface which has a length corresponding to a separation distance among the plurality of props, has an accommodating space therein, and forms a first communicating hole which allows the air to flow in and out of the accommodating space; a second surface opposite to the first surface, forming a second communicating hole which allows the air to communicate in and out of the accommodating space; and a rotary plate which has a shape of a plate, is disposed along the upward and downward directions between the first surface and the second surface in the accommodating space, has a rotary shaft in accordance with a longitudinal direction of the case, and is configured to be rotated in a forward and backward direction. The rotary plate rotates by a wind pressure supplied in the accommodating space.

Description

TECHNICAL FIELD [0001] The present invention relates to a sound-proofing block and a sound-

The present invention relates to a ventilation-type soundproof block and a soundproof wall having the same, and more particularly, to a ventilation-type soundproof block capable of stably maintaining the durability of the soundproof wall itself by selectively communicating at least a part of the soundproof wall It is about a sound barrier.

Noise and Vibration Pollution is one of the pollutants frequently encountered in everyday life, and it is installing noise barrier to increase the psychological, mental and physical fatigue and stress to create a pleasant and quiet environment.

Soundproof walls are installed to block or reduce noise from outside. They are installed around highways, residential areas, schools and public facilities. Through the installation of these soundproof walls, various sound barrier walls were required to make our life more comfortable.

Therefore, soundproofing walls of various materials and sizes have been developed and used for their purposes.

Generally, the road sound barrier is constructed by installing a single soundproof plate between pillars set at regular intervals on the foundation concrete.

The height of the sound barrier constructed to block the vehicle noise of general roads, highways, automobiles, bridges, or general railways that cross the city with high-rise buildings is relatively high. , These soundproof walls may be damaged by wind loads due to wind pressure such as typhoons or gusts.

In addition, sound insulation walls on roads in valleys or mountainous areas in coastal areas, coastal areas vulnerable to typhoons or gusts, can also be damaged by wind loads.

Many inventors of the present invention have proposed soundproof walls for preventing the soundproof walls from being damaged by such wind loads

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems, and it is an object of the present invention to provide a ventilation type soundproofing structure capable of preventing the breakage by attenuating the wind load acting on the soundproof wall by automatically rotating the rotating plate to transmit wind, Block and a sound barrier provided with the same

According to one aspect of the present invention, there is provided a sound insulation board including a plurality of pillars arranged in a vertical direction and a plurality of sound insulation boards inserted between the pillars, A first surface having a length corresponding to a distance between the plurality of struts and having a receiving space formed therein and having a first communication hole for allowing air to flow into and out of the receiving space; And a second surface formed with a second communication hole facing the first surface and allowing air to communicate with the inside and the outside of the accommodation space, wherein the first surface and the second surface A pair of upper and lower cases arranged to face each other in the longitudinal direction of the case, A rotating plate to be rotated; And the rotating plate is rotated by the wind pressure of the wind supplied into the receiving space.

The rotation axis may be deflected upward from a central portion along the vertical direction of the rotation plate.

Further, the rotation plate may further include a separate load portion on the lower side along the up and down direction so as to be arranged in the vertical direction by its own weight when no external force acts.

The rotation plate may have a plurality of rotation plates, each of which has the same rotation axis, and is disposed continuously along the longitudinal direction.

Further, the rotary plate may have a separate brush protruding from a lower end portion along the vertical direction to reduce friction between the rotary plate and the bottom surface of the case.

The rotation plate may further include a separate sound absorbing sheet provided on at least one surface thereof for absorbing noise.

In addition, the case may be formed such that at least a part of a bottom surface thereof is curvedly depressed corresponding to a rotation radius of the rotary plate.

In addition, the case may be provided with a latching jaw on the bottom surface so that the lower end of the rotation plate is engaged with the rotation plate, so that the rotation plate rotates only within a predetermined allowable angle.

At least one of the first communication hole and the second communication hole may be configured to selectively adjust the degree of opening to adjust the amount of wind transmitted to the rotating frame.

The case may further include a sound absorbing member provided on at least a part of the inner surface of the accommodation space to absorb noise.

Further, the rotary plate is constituted by a plurality of rotary plates, each of which has a different rotation axis and is arranged continuously along the vertical direction.

The case may further include a separate partition plate having a plate shape and disposed along the lateral direction within the accommodation space and partitioning the accommodation space by a number corresponding to the number of the rotation plates, And each of the accommodating spaces divided by the rotation plate is provided with one rotation plate.

According to another aspect of the present invention, there is provided a sound insulation wall comprising: a plurality of pillars arranged in a vertical direction; a plurality of sound insulation plates inserted between the pillars and having a length corresponding to a distance between the pillars; And a ventilating type sound insulation block inserted between the pillars and blocking the noise generated from the noise source, wherein the ventilating type sound insulation block has a length corresponding to a separation distance between the plurality of pillars, A first surface having a first communicating port formed therein for allowing air to flow into and out of the accommodating space, and a second communicating port facing the first surface for allowing air to communicate with the inside and the outside of the accommodating space And a second plate having a case and a plate shape including a second surface, wherein the first surface and the second surface And a rotation plate disposed along the vertical direction and having a rotation axis along the longitudinal direction of the case and being rotatable in forward and backward directions, wherein the rotation plate is rotated by the wind pressure of wind supplied into the accommodation space .

The upper end of the sound barrier wall according to the present invention has the following effects.

First, in case of installing the soundproof wall, it plays the soundproofing function of the soundproof wall at all times. In the windy environment such as typhoon, the rotation frame rotates to attenuate the wind load acting on the soundproof wall, There is an advantage.

Second, since the rotary frame is provided with a separate load portion at the bottom of the rotary frame, the rotary frame is vertically arranged by its own weight to block the front-rear directional communication of the soundproof wall, so that the noise generated from the noise source can be blocked without a complicated configuration have.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the construction of a soundproof wall provided with a ventilation type soundproof block according to the present invention;
FIG. 2 is a perspective view showing the configuration of a ventilation-type soundproof block of FIG. 1; FIG.
Fig. 3 is an exploded perspective view showing the internal structure of the ventilation-type soundproof block of Fig.
4 is a cross-sectional view showing the internal structure of the ventilated soundproof block of FIG. 2;
FIG. 5 is a view showing a state in which a separate sound absorbing sheet is further included on the rotating plate in the ventilating type soundproof block of FIG. 2; FIG.
FIG. 6 is a view showing a rotating state of the rotating plate in the ventilated soundproof block of FIG. 2;
FIG. 7 is a perspective view showing a modified form of the ventilation type soundproof block of FIG. 1; FIG.
FIG. 8 is an exploded perspective view showing the internal configuration of the ventilated soundproof block of FIG. 7; FIG.
9 is a cross-sectional view showing the internal configuration of the ventilated soundproof block of Fig. 7; And
10 is a view showing a rotating state of the rotating plate in the ventilation type soundproof block of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

1 to 4, a ventilation type soundproof block according to the present invention and a soundproof wall having the same are schematically described below.

FIG. 1 is a schematic view showing the construction of a soundproof wall provided with a soundproof type soundproof block according to the present invention, and FIG. 2 is a perspective view showing the construction of the soundproof type soundproof block shown in FIG.

FIG. 3 is an exploded perspective view showing the internal configuration of the ventilation type soundproof block of FIG. 2, and FIG. 4 is a sectional view showing the internal configuration of the ventilation type soundproof block of FIG.

As shown in FIG. 1, the soundproof wall 10 according to the present invention includes a strut 100 disposed near a noise source (not shown) to attenuate and block noise generated in the noise source, And a ventilation type sound insulation block 300 interposed between the pillars 100 together with the sound insulation plate 200 to block noise generated from the noise source 100. [ do.

The soundproof panel 200 and the ventilated soundproof block 300 are each formed in a block shape and have a length corresponding to the distance between the pillars 100, And is inserted and joined between the pillars (100).

At this time, the pillars 100 and the sound-absorbing plate 200 may be widely used in general soundproof walls.

Of course, the soundproofing wall 10 according to the present invention may be constructed such that only the ventilation-type soundproof block 300 is inserted between the pillars 100, except for the soundproofing plate 200 described above.

The ventilating type soundproof block 300 is inserted and fixed between a pair of the pillars 100 like the above-mentioned sound insulation plate 200. When the wind pressure acting on the soundproof wall 10 is higher than a predetermined wind speed, The part is opened and permeates the wind to reduce the wind load.

In detail, the ventilating type soundproof block 300 according to the present invention includes a case 310 and a rotation plate 320.

The case 310 has a length corresponding to the distance between the plurality of pillars 100 and is formed with a receiving space 316 therein and allows the air to flow out of the receiving space 316 And a second communication hole 313a for communicating air to the outside of the accommodation space 316 while facing the first surface 312. The first communication hole 312a is formed in the first communication hole 312a, And a second surface 313 on which the second surface 313 is formed.

That is, the case 310 is formed such that the first surface 312 and the second surface 313 face each other, and each of the first and second communication holes 312a and 313a So that the wind generated from the outside passes through the first communication hole 312a and the second communication hole 313a and can pass through the accommodation space 316. [

In this embodiment, the case 310 is formed in the shape of a square block and is formed to be long enough to be coupled between the pair of pillars 100, and the side surfaces along the forward and backward directions are connected to the first surface 312 and / And becomes the second surface 313. In addition, the case 310 is formed into a square block shape by having a bottom surface 314 and an upper surface 315.

1, the longitudinal direction of the case 310 refers to the direction A in which the pillars 100 are spaced apart from each other, and the front and rear direction is a front direction and a rear direction with respect to the soundproof wall 10, Direction ", and " B "

In addition, the vertical direction means the vertical direction of the sound barrier wall 10, which means the C direction.

In this embodiment, the case 310 is formed in a rectangular block shape, and the first and second surfaces 312 and 313, which are side surfaces along the forward and backward directions, The second communication hole 313a is formed.

Although not shown in the drawing, the degree of opening of the first communication hole 312a and the second communication hole 313a may be selectively adjustable by the user.

Accordingly, it is possible to control the amount of wind delivered into the accommodation space 316.

Although not shown in the drawing, at least a part of the inner surface of the accommodation space 316 may further include a sound absorbing member (not shown) for absorbing noise, And the sound-absorbing member is provided inside, so that the noise generated from the noise source can be reduced.

The rotation plate 320 according to the present invention has a general plate shape and is disposed along the vertical direction between the first surface 312 and the second surface 313 inside the accommodation space 316. The rotation plate 320 has a rotation axis L1 along the longitudinal direction of the case 310 and is rotatable in the forward and backward directions.

That is, the rotation plate 320 is arranged in the up-and-down direction in the accommodating space 316 to partition the front-back direction communication of the accommodating space 316. The rotation plate 320 has the rotation axis L1 along the longitudinal direction of the case 310 and is selectively rotatable.

Accordingly, when the wind pressure of the predetermined wind speed or more acts on the case 310, the rotation plate 320 rotates to allow the accommodation space 316 to communicate in the front-rear direction.

Specifically, the rotation plate 320 according to the embodiment of the present invention has a rectangular plate shape and is configured to have a length corresponding to the length of the case 310. And has the rotation axis L1 parallel to the longitudinal direction of the case 310 inside the accommodation space 316 so as to be rotatable.

Here, as shown in FIG. 4, it is preferable that the rotation axis L1 is positioned to be deflected upward from a central portion of the rotation plate 320 in the vertical direction. This is for the purpose of enabling the rotation plate 320 to be vertically arranged by its own weight when wind is not applied to the rotation plate 320 and to block the reception space 316 in the forward and backward directions.

The rotation plate 320 has a separate lower portion 322 on the lower side so that an external force is applied to the rotation plate 320. As a result, The rotation plate 320 can be arranged in the up and down direction due to its own weight.

In the present embodiment, the rotation plate 320 is formed of a single plate and disposed inside the accommodation space 316. However, although not shown in the drawing, the rotation plate 320 is formed of a plurality of And may be disposed continuously along the longitudinal direction with the same rotation axis L1.

When the plurality of rotary plates 320 are constituted as described above, each of the rotary plates 320 independently moves and can rotate according to the wind pressure acting by the wind.

In addition, as described above, the degree of opening of the first communication hole 312a and the second communication hole 313a is selectively controlled to pass through the accommodation space 316 to the rotation plate 320 And the wind pressure acting on the rotating plate 320 may be adjusted accordingly.

Meanwhile, the rotation plate 320 according to the present invention may further include a separate brush 324 protruding from an end portion along the vertical direction.

The brush 324 may be formed of a flexible material and may be provided on the upper and lower ends of the rotation plate 320. The brush 324 may be disposed inside the accommodation space 316 such that the upper surface 315, The rotation plate 320 can be prevented from being worn out by reducing the occurrence of direct friction between the rotating plate 320 and the rotating plate 320. [

The brush 324 may contact the bottom surface 314 or the top surface 315 to provide a load for the rotation of the rotation plate 320 so that the rotation plate 320 may have a wind pressure It can be rotated so as to function.

The brush 324 is disposed at the upper and lower ends of the rotation plate 320 and is configured to contact the upper surface 315 and the lower surface 314. [

In this embodiment, the bottom surface 314 is formed to be curved so as not to interfere with the rotation plate 320 corresponding to the rotation radius of the rotation plate 320.

As shown in FIG. 3, the bottom surface 314 is partially curved so that interference does not occur when the rotation plate 320 rotates. In addition, when the noise is moved into the accommodation space 316 through the first communication hole 312a, the noise is diffracted and reduced by the portion formed by the depression on the bottom surface 314.

In addition, in the present embodiment, not only the bottom surface 314 but also the top surface 315 may be recessed upwardly corresponding to the rotation radius of the rotation plate 320.

The upper surface 315 and the bottom surface 314 are partially recessed corresponding to the rotation radius of the rotation plate 320 to prevent the rotation of the rotation plate 320 from being generated, At the same time, the noise can be reduced.

In addition, in the present embodiment, the bottom surface 314 may be partially curved and at the same time, a separate latching jaw 314a may be formed adjacent thereto.

The engaging protrusion 314a is formed to catch the lower end of the rotation plate 320 so that the rotation plate 320 rotates only within a predetermined allowable angle.

In this embodiment, as shown in FIG. 4, the latching jaw 314a is formed on the bottom surface 314 so that the rotation plate 320 can be configured to rotate in only one direction with a reduced radius of rotation .

As described above, the ventilating type soundproof block 300 according to the present invention includes the case 310 and the rotation plate 320, and the first and second communication holes 312a and 313a Back direction of the case 310 and the rotation plate 320 provided in the accommodation space 316 is normally vertically disposed and cut off. Accordingly, when noise is generated in the noise source, noise is cut off by the rotation plate 320.

In the case where a wind pressure higher than a predetermined wind speed acts on the soundproof wall 10, the rotation plate 320 provided in the accommodation space 316 rotates to transmit wind in the forward and backward directions, It acts to attenuate wind loads.

Accordingly, the ventilating type soundproof block 300 according to the present invention and the soundproof wall 10 having the same function as a soundproofing wall of the present invention normally soundproofing the soundproof wall 10 and, in a windy environment such as a typhoon, Since the wind load acting on the soundproof wall 10 is attenuated by rotating the case 310 by wind pressure and communicating the front and rear direction of the case 310, the structure of the soundproof wall 10 can be protected and the maintenance cost can be reduced have.

5, a separate sound absorbing sheet 326 is further included in the rotating plate 320 of the ventilating type soundproof block 300 according to the present invention.

5 is a view illustrating a state in which the sound absorbing sheet 326 is further included on the rotating plate 320 in the ventilating type sound absorbing block 300 of FIG.

As shown in the drawing, the ventilating type soundproof block 300 according to the embodiment of the present invention may further include the separate sound absorbing sheet 326.

Specifically, the sound absorbing sheet 326 in the form of a sheet is provided on at least one surface of the rotation plate 320 provided in the accommodation space 316, and the noise generated in the noise source is blocked by the rotation plate 320 And the noise absorbing sheet 326 can reduce the noise.

Although the sound absorbing sheet 326 is formed on only one side of the rotation plate 320 in the present embodiment, the sound absorbing sheet 326 may be provided on both sides of the rotation plate 320 have.

As described above, since the rotation plate 320 according to the present invention is further provided with the sound absorbing sheet 326, it is possible to reduce not only noise but also noise.

Next, referring to FIG. 6, a state in which the rotary plate 320 is rotated by the wind pressure in the ventilating type soundproof block 300 according to the present invention will be described.

6 is a view showing a state in which the rotation plate 320 is rotated in the ventilation type soundproof block 300 of FIG.

6 (a), the rotating plate 320 is disposed in the receiving space 316 in the up-and-down direction by its own weight, and the wind pressure of wind blowing from the outside is applied to the rotating plate 320). &Lt; / RTI > Accordingly, the rotation plate 320 does not rotate but maintains the vertical position.

6B, when the wind blowing into the accommodation space 316 exceeds a predetermined wind pressure, the rotation plate 320 is rotated counterclockwise by a predetermined angle.

6C, the wind pressure of the wind blowing into the accommodation space 316 is much higher than the predetermined wind pressure, so that the rotation plate 320 rotates in a completely counterclockwise direction and the soundproof wall 10 in the forward and backward direction.

The ventilating type sound insulation block 300 according to the present invention is configured such that when the wind over a predetermined speed is blown into the accommodation space 316 and the wind pressure is applied to the rotation plate 320, Thereby allowing the wind to pass through the inside of the accommodation space 316, thereby preventing the soundproof wall 10 from being damaged.

Next, referring to FIGS. 7 to 9, a modified embodiment of the ventilating type soundproof block 300 according to the present invention will be described.

FIG. 7 is a perspective view showing a modified form of the ventilating type soundproof block 300 of FIG. 1, FIG. 8 is an exploded perspective view showing the internal configuration of the ventilated type soundproof block 300 of FIG. 7, 7 is a cross-sectional view showing the internal configuration of the ventilating type soundproof block 300 of FIG.

The basic structure is similar to the ventilated type soundproof block 300 described above, but a plurality of the rotation plates 320 are provided, each having the rotation axis L1 different from each other, And are arranged continuously in the vertical direction from the inside.

Here, the rotation axis L1 of each of the rotation plates 320 is preferably parallel.

Specifically, the case 310 includes the first surface 312, the second surface 313, the bottom surface 314, and the top surface 315 described above, and additionally includes the receiving space 316 And a partition plate 317 for partitioning the accommodation space 316 along the vertical direction.

The rotation plate 320 is configured to rotate in the forward and backward directions of the case 310 with the rotation axis L1 independent of each of the accommodation spaces 316 defined by the partition plate 317. [

That is, the partition plate 317 is disposed along the lateral direction inside the accommodation space 316, and divides the accommodation space 316 by a number corresponding to the number of the rotation plates 320. One of the rotation plates 320 is disposed in each of the partitioned space 316.

At this time, the rotation axis L1 of each of the rotation plates 320 is located at the upper end of the rotation plate 320 along the vertical direction.

In the present embodiment, the case 310 is provided with one partition plate 317 to divide the accommodation space 316 into two upper and lower spaces.

Each of the rotation plates 320 is rotatably provided in the accommodation space 316 defined by the upper and lower parts, with the rotation axis L1. At this time, each of the rotation axes L1 is provided at the upper end portion of the rotation plate 320 in the up and down direction, and the above-mentioned load portion 322 and the brush 324 are provided at the lower end portion thereof .

Since the plurality of rotation plates 320 are arranged along the vertical direction within the one case 310 so as to rotate independently of each other, the wind load generated by the wind applied to the sound insulation wall 10 can be more efficiently .

9, the rotation plate 320 is positioned at the upper end of the rotation plate 320, so that the rotation plate 320 can be tilted in both forward and backward directions.

Thus, the rotary plate 320 can be tilted in both forward and backward directions, so that the wind load applied to the soundproof wall 10 can be stably reduced regardless of the wind direction.

In this embodiment, in order to prevent interference with the bottom surface 314 and the partition plate 317 in correspondence with the rotation radius of the rotation plate 320 as shown in the drawing, Is formed.

Accordingly, each of the rotation plates 320 can rotate stably.

10, the rotation plate 320 is rotated in both directions in a modified form of the ventilating type soundproof block 300 according to an embodiment of the present invention.

10 is a view showing a state in which the rotation plate 320 is rotated in the ventilation type soundproof block 300 of FIG.

10 (a), when wind is blown from the front of the soundproof wall 10, wind is transmitted to the rotation plate 320 through the first communication hole 312a, A wind load is generated in the rotor 320 and the rotation plate 320 rotates counterclockwise.

As a result, the wind can pass through the case 310 in the forward and backward directions, and the wind load generated in the soundproof wall 10 is reduced.

10 (b), when the wind is blowing from behind the soundproof wall 10, the wind passes through the second communication hole 313a and is transmitted to the rotation plate 320, 320 are rotated in a clockwise direction by a wind load.

As the rotary plate 320 rotates in the clockwise direction, the wind can pass through the case 310 in the forward and backward directions, and the wind load applied to the soundproof wall 10 is reduced.

That is, as shown in the present embodiment, since the rotation axis L1 is located at the upper end of the rotation plate 320 in the up-and-down direction, the rotation allowable angle of the rotation plate 320 increases, All can be rotated.

When the wind is stopped, the rotation plate 320 is vertically disposed by its own weight to block the front-rear direction communication of the accommodation space 316.

As described above, the ventilating type soundproof block 300 according to the present invention is configured to block and reduce noise generated from the noise source, and when the wind is severely blown, the wind load is reduced to prevent damage due to wind load have.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

100: column 200: soundproof plate
300: ventilation type soundproofing block 310: case
312: first side 314: second side
316: bottom surface 318: upper surface
320: rotating plate 322:
324: Brush 10: Soundproof wall

Claims

A ventilating type sound insulation block inserted between the pillars together with the sound insulation plate on a sound insulation wall including a plurality of pillars arranged in a vertical direction and a plurality of sound insulation plates inserted between the pillars,
A first surface having a length corresponding to a distance between the plurality of stanchions and having a receiving space formed therein and having a first communication hole for allowing air to flow into and out of the receiving space, A case including a second surface formed with a second communication hole for allowing air to communicate with the inside and outside of the accommodation space; And
A rotating plate having a plate shape and disposed in the up-and-down direction between the first surface and the second surface in the accommodating space, the rotating plate having a rotating shaft along the longitudinal direction of the case and being rotatable in forward and backward directions; / RTI >
Wherein the rotary plate is rotated by a wind pressure of wind supplied into the accommodating space.

The method according to claim 1,
The rotation shaft
And the upper portion of the rotary plate is deflected upward from a central portion along the vertical direction of the rotary plate.

The method according to claim 1,
The rotation plate includes:
Further comprising a separate load portion on the lower side along the vertical direction so as to be arranged in the vertical direction by its own weight when no external force acts.

The method according to claim 1,
The rotation plate includes:
Wherein each of the first and second vibration isolators is composed of a plurality of blocks each having the same rotation axis and arranged continuously along the longitudinal direction.

The method according to claim 1,
The rotation plate includes:
Wherein a separate brush protruding from a lower end portion along the vertical direction is provided to reduce the occurrence of friction between the brush and the bottom surface of the case.

The method according to claim 1,
The rotation plate includes:
Further comprising a separate sound absorbing sheet provided on at least one side of the housing for absorbing noise.

The method according to claim 1,
In this case,
Wherein at least a part of the bottom surface is formed to be curved so as to correspond to a rotation radius of the rotary plate.

8. The method of claim 7,
In this case,
And a separate locking step is formed on the bottom surface so that the lower end of the rotation plate is hooked so that the rotation plate rotates only within a predetermined allowable angle.

The method according to claim 1,
Wherein at least one of the first communication hole and the second communication hole is configured to selectively adjust the degree of opening to adjust the amount of wind to be transmitted to the rotating frame.

The method according to claim 1,
In this case,
Further comprising a sound absorbing member provided on at least a part of an inner surface of the accommodating space to absorb noise.

The method according to claim 1,
The rotation plate includes:
And each of the first and second side walls has a different rotation axis and is disposed continuously along the up-and-down direction.

12. The method of claim 11,
In this case,
Further comprising a separate partition plate having a plate shape and arranged along the transverse direction inside the accommodation space and partitioning the accommodation space by a number corresponding to the number of the rotation plates, Wherein each of the spaces is provided with one rotation plate.

A plurality of columns arranged in the vertical direction;
A plurality of sound insulation plates having a length corresponding to a distance between the struts and inserted between the struts; And
And a ventilation-type sound block inserted between the pillars together with the sound insulation plate to block noise generated from the noise source,
Wherein the ventilating type soundproof block has a first surface having a length corresponding to a spacing distance between the plurality of stanchions and having a receiving space therein and having a first communication hole for allowing air to flow into and out of the receiving space, And a second surface formed with a second communication hole facing the first surface and allowing air to communicate with the inside and the outside of the accommodation space, wherein the first surface and the second surface And a rotary plate disposed along the vertical direction between the upper and lower surfaces and having a rotation axis along the longitudinal direction of the case and rotatable in the forward and backward directions, Wherein the soundproof block is rotatable about an axis.