KR20180062477A - Noise interception equipment for use of ventilator - Google Patents

Abstract

The disclosed contents relate to a sound reducing device for exhaustion ducts that is installed between exhaustion ducts to prevent noise introduced together with exterior air from flowing reversely. An assembly module (10) includes a cylindrical wall (11) corresponding to the diameter of a duct hole, a step (12) formed on an inner surface of an upper end of the cylindrical wall, a positioning step (13) formed on an outer surface of a lower end of the cylindrical wall and mounted on the step, a semi-disk shaped opening/closing plate extending horizontally from an inner peripheral wall of the cylindrical wall, and an opening (18) defining a horizontal space at a tip end of the opening/closing plate to correspond to the opening/closing plate. In the sound reducing device for an exhaustion duct, at least two assembly modules are assembled, a positioning step of a second assembly module is mounted on a step of a first assembly module such that the opening/closing plates of the assembly modules are located in opposite directions so that noise may be interrupted by interrupting an opening of the second assembly module with an opening/closing plate of the first assembly module. The sound reducing device for exhaustion ducts shows an effect of reducing all noise generated on the outside and introduced through the exhaustion ducts, is assembled with simple assembly modules, and interrupts noise when interior air is discharged, by forming napping or sound absorbing materials in the opening/closing plates in the assembly modules.

Description

(Noise interception equipment for use in ventilation duct)

The present invention relates to an exhaust duct which is installed in an exhaust duct provided in each household of a building for a residential house such as an apartment, a shopping mall, an office building or the like, and which prevents external noises from entering the room, The present invention relates to a sound deadening mechanism for a vehicle.

Generally, a building for a residence such as an apartment or an office building is provided with a ventilation facility for ventilation in a kitchen in each household, and the ventilation facility is provided with a ventilation opening provided in a ventilation passage (ventilation passage, ventilation duct hole) The exhaust gas is sucked through the ventilator and exhausted to the outside of the building through the ventilation duct according to the operation of the ventilator. In the state where the ventilator is operated, various noises And the like flow back through the exhaust duct and flow into the household.

As a conventional technique for solving such a problem, Korean Registered Patent Application No. 10-1226973 discloses an air flow structure inside a pipe constituting an upper part and a lower part of a building, a ventilation passage connected to left and right sides of a building, A plurality of dusts, oil components, and foreign substances introduced into the pipe during long-term use are prevented from falling into a state of being attached to the outer circumferential surfaces of a plurality of rotating blades, so that the rotating blades are stopped, There is a problem in that noise such as noise flows back from the outside, and when a foreign substance or the like adheres to the outer circumferential surface of the rotary vane in a large amount and becomes solidified, the foreign matter becomes clogged and rotates As the wings are not rotating at all, the noise and other blocking functions are lost, The disassembly and assembly of the teeth and the cleaning of the rotary blades are difficult.

In the concrete building structure having high airtightness, a ventilation hole for ventilation is provided on the outer wall. Since the ventilation hole is a hole penetrating the outer wall, the outer portion is covered with an outer wall hood or the like for preventing penetration of rainwater, A louver or an opening / closing mechanism, which is called a ventilator register, is provided for opening and closing the ventilation hole.

The louver includes, for example, a cover made of stainless steel or plastic having an opening in a part thereof, and a rotating plate which rotates to open or close the opening, and the outside air introduced into the vent through the filter, And is installed so as to be sprayed into the room.

However, since the ventilating hole is usually a through hole, if no soundproof measures are taken, outdoor noise intrudes intact into the room.

An object of the present invention is to provide a muffling mechanism for an exhaust duct that prevents external noise from flowing through an exhaust duct and exerts a sound erasing effect.

An object of the present invention is to provide a ventilation device and a noise mechanism for an exhaust duct installed together with the ventilation hole.

An object of the present invention is to provide a noise mechanism which is assembled with an assembling module in which a noise mechanism for an exhaust duct is easily assembled.

An object of the present invention is to provide a prefabricated noise apparatus in which at least two or more assembled modules constituting a noise mechanism are completed and a predetermined noise apparatus is completed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a noise mechanism in which the noise cancellation mechanism for the exhaust duct can be easily exchanged and exchanged.

It is another object of the present invention to provide a muffling mechanism for an exhaust duct in which a plurality of assembling modules are assembled, and a noise mechanism having a brim formed on an outer surface of the muffling mechanism for the exhaust duct.

According to an aspect of the present invention, there is provided a muffler for an exhaust duct,

In a noise instrument for an exhaust duct,

A cylindrical wall portion corresponding to the diameter of the duct hole;

A step portion (hereinafter referred to as a step portion) formed on an inner surface of the cylindrical wall portion on the upper end side;

A placement step portion (hereinafter referred to as a placement step portion) formed on the outer surface of the lower end side of the cylindrical wall portion and attached to the jaw portion;

A semi-circular plate-shaped opening / closing plate portion (horizontal opening plate portion) extending horizontally from an inner peripheral wall of the cylindrical wall portion; And

An opening (opening) in the horizontal space corresponding to the opening / closing plate portion at the front end side of the opening / closing plate;

An assembly module,

Wherein at least two assembling modules are assembled so that the opening and closing plate portions of the respective assembling modules are positioned in opposite directions from each other, the mounting portion of the second assembling module is inserted into the jaw portion of the first assembling module, And closing the opening of the module to eliminate sound.

In order to accomplish the above object, the present invention provides an opening and closing plate portion of a noise reduction mechanism for an exhaust duct, the opening and closing plate portion being further provided with an opening and closing membrane through which the tip portion of the center line moves in accordance with the flow of the airflow.

In order to achieve the above-mentioned object, the opening and closing plate portion of the noise reduction mechanism for an exhaust duct according to the present invention preferably has a curved surface.

In order to achieve the above object, it is preferable that the opening closing membrane of the noise instrument for an exhaust duct of the present invention is made of a flexible material.

In order to attain the above object, it is preferable that a napping (Nap) is formed on the front and back surfaces of a corner plate portion of a noise instrument for an exhaust duct of the present invention.

The present invention provides a noise cancellation mechanism for an exhaust duct that exerts a sound cancellation effect through an air current generated from the outside or various external noises, The present invention provides a noise mechanism for an exhaust duct installed together with a ventilation device and a ventilation duct in an exhaust duct and the like.

According to the present invention, by providing such a noise duct for the exhaust duct, it is possible to simplify the exchange and assembly after long-term use, and bridges are formed on the inner surface and the outer surface of the opening and closing plate portion for blocking the passage of the noise duct for the exhaust duct There is also an effect that the noise can be erased from the surface of the brushed surface by letting the noise generating assembly module pass through the air stream mixed with various noises.

1 is a view showing an example of an external noise shielding mechanism provided in a conventional exhaust duct,
FIG. 2 is a cross-sectional view of a duct in which a muffling mechanism for an exhaust duct of the present invention is installed,
3 is an exploded perspective view of an assembling module of a noise mechanism for an exhaust duct according to the present invention,
FIG. 4 is an exploded perspective view of the assembling module of the noise reduction mechanism for an exhaust duct according to the present invention,
5A is a cross-sectional view of an assembly module of a noise reduction mechanism for an exhaust duct according to the present invention,
5B is a cross-sectional view of another embodiment in which several assembling modules of a noise mechanism for an exhaust duct of the present invention are assembled,
FIG. 6A is a cross-sectional view showing a state in which an internal airflow flows out in a state in which a silencer for an exhaust duct of the present invention is installed,
FIG. 6B is a cross-sectional view showing a state in which noise introduced together with the external airflow is blocked in a state where the noise reduction mechanism for the exhaust duct of the present invention is installed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a cross-sectional view illustrating a state in which a muffling mechanism for an exhaust duct of the present invention is installed on a duct.

The noise reduction mechanism for a ventilation duct according to the present invention comprises a number of assembly modules 10, 10a, 10b, 10c, 10d, And the noise canceller 100 is inserted into a single cylinder.

The assembly number of the assembly module 10 can be increased or decreased as needed. In the embodiment of the present invention, four are implemented in the drawing.

3 is an exploded perspective view of an assembling module of a noise mechanism for an exhaust duct according to the present invention.

One assembly module 10 shown in the figure forms a cylindrical rim portion 11 and the inside of the rim portion 11 is provided with an upper portion and a lower portion (front and rear in the horizontal direction) of the wall portion 11, The jaw portion 12 may be formed at a predetermined depth on the upper side inside so as to correspond thereto and the mount portion 13 having a predetermined diameter may be formed at the lower end portion so as to be seated on the jaw portion 12. An opening portion 18 and a 1/2 to 2/3 opening / closing plate portion 15, which are approximately 1/3 to 1/2 of the height of the jaw portion 12 in the wall portion 11, And the opening / closing plate portion 15 preferably forms a curved surface 17 which forms a curved surface of the waveform. In particular, the opening / closing plate 15 is made of a necessary material capable of forming such a curved surface 17. The material is preferably a synthetic resin material. In particular, on the front end side of the opening / closing plate portion 15, a opening-closing membrane 16 having a predetermined width may be formed at the interface with the opening portion 18. It is preferable that the opening closure film 16 is realized as a film of a synthetic resin material which is softer than the opening / closing plate portion 15 so as to be blocked in a stopped state without any air flow.

At least two assemblies are possible to perform the airflow cutoff function of the assembling module 10.

FIG. 5A is a cross-sectional view of an assembling module of a noise reduction mechanism for an exhaust duct according to the present invention, FIG. 5B is a cross-sectional view of the exhaust duct of the present invention Sectional view of another embodiment in which a plurality of assembly modules of the noise mechanism are assembled.

As shown in the drawings, the ventilation duct noise reduction mechanism for a duct according to the present invention includes a plurality of assembly modules 10, 10a, 10b, 10c, 10d, It accomplishes.

The rim portion 11 of the assembly module 10 forms a cylindrical rim that conforms to the diameter of the exhaust duct 20. The jaw portion 12 is formed on the inner surface on the upper and lower end side of the rim portion 11 and the mount jaw portion 13 is formed on the outer side of the bottom surface side of the assembling module 10. Of course, the grooves 13a and the protrusions 12a, which are inserted and coupled with each other, can be implemented on the insertion surfaces of the jaw portion 12 and the mount portion 13, respectively. In addition, various fastening structures other than the yaw and ridged engagement structures may be possible. An opening 18 and a 1/2 to 2/3 opening / closing plate 15 are formed on the inner side of the jaw 12 in the wall 11 in the order of 1/3 to 1/2, And the opening and closing plate portion 15 forms a curved surface 17 forming a curved surface of the corrugated shape and the leading end portion of the opening and closing plate portion 15 moves in accordance with the flow of the air current to the side of the opening and closing plate portion 15, The opening / closing plate portion 15 is provided with the opening / closing plate 16 made of a flexible material capable of blocking and opening the gap for forming the air flow passage. In particular, A bristle (Nap, 19) may be formed on the front and back surfaces. The bristles 19 have a function of absorbing noise of a predetermined frequency flowing through the airflow from the outside. The sound absorbing material can be formed more positively instead of brushed. Sound absorbing materials are available in various known ways.

The assembled noise canceller set 100 can filter and filter out noises from the inside airflow flowing out from the inside in addition to opening and closing functions through the opening and closing membranes 16, (Sound absorbing material).

10b, 10c, 10d, ...., 10f, 10f, 10f, 10f, 10z, 10z, 10z, 10z, 10z, The assembly of the assembling module 10 is completed by assembling the assembly module 10 such that at least two or more opening and closing plate portions 15 are positioned opposite to each other (the opening portion 18 is also in the opposite direction) The first and second assembling modules 10a and 10b are assembled by inserting the mounting portion 13 of the second assembling module 10b in correspondence with the jaw portion 12 of the first assembling module 10a. At this time, the respective openings 18 are located in opposite directions to each other, and the opening / closing plate portions 15 are also positioned opposite to each other. As a sequence of assembling the third and fourth assembly modules 10c, 10d, The set 100 will be completed.

On the other hand, as shown in Fig. 5B, a protrusion 12a can be formed on the jaw portion 12, and a groove portion 13a can be formed on the mount jaw portion 13. [ This can improve the fastening force at the time of inserting the jaw portion 12 and the mounting jaw portions 13 so that the tightening force can be exerted when the assembling modules 10, 10a, 10b, 10c, and 10d are coupled. In addition, as a kind of fastening means known along the jaw portion 12 and the jaw portion 13, it is possible to form a line having a protruding frame and a groove.

FIG. 6A is a cross-sectional view illustrating a state in which the internal airflow is discharged from the installation state of the noise reduction mechanism for the exhaust duct of the present invention. FIG. 6B is a cross- Fig.

As shown in the drawing, when the ventilating duct is ventilated through a predetermined ventilator, the ventilating duct for the ventilating duct according to the present invention pushes out the flexible opening cover 16 of the opening / closing plate 15, And then discharged. At this time, the noise from outside can be temporarily absorbed and can be heard in the internal kitchen space, but it can be automatically shut off after instantaneous opening as the automatic control of the ventilation equipment. However, the noise during the temporary opening may be absorbed by the bristles 19 formed on the top and bottom surfaces of the opening and closing plate 15.

Of course, as shown in FIG. 6B, while the internal airflow is not discharged, the opening closing membrane 16 is always blocked.

As shown in FIG. 6 (b), when there is no outside air and no air or noise from the outside is pushed in as shown in FIG. 6 (b), the open / close plate 15 of flexible 16) moves in the opposite direction (close contact) to block the introduction of the outside air and to block the inflow of noise contained in the outside air.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, .

10: assembly module, 11; A cylindrical wall portion,
12: step portion (step difference portion), 12a, 13a: 13: mounting step difference portion,
15: open / close plate portion, 16: open / close film, 17: curved surface,
18: opening (opening), 19: napping (Nap), 20: exhaust passage,
100: Noise mechanism set,

Claims (5)

In a noise instrument for an exhaust duct,
A cylindrical wall portion corresponding to the diameter of the duct hole;
A jaw formed on the inner surface on the upper end side of the cylindrical wall portion;
A mountable jaw portion formed on an outer surface of a lower end side of the cylindrical wall portion and mounted on the jaw portion;
An opening / closing plate part of a semicircular plate shape extending in a horizontal direction on an inner peripheral wall of the cylindrical wall part; And
An opening in the horizontal space corresponding to the opening / closing plate portion at the front end side of the opening / closing plate;
An assembly module,
Wherein at least two assembling modules are assembled so that the opening and closing plate portions of the respective assembling modules are positioned in opposite directions from each other, the mounting portion of the second assembling module is inserted into the jaw portion of the first assembling module, Noise mechanism for exhaust duct that cuts openings of modules and blocks noise. The method according to claim 1,
Wherein the opening / closing plate portion has a front end portion of the opening / closing membrane. The muffler for an exhaust duct according to claim 1, wherein the opening / closing plate portion forms a wave-like curved surface. 2. The sound-deadening apparatus for an exhaust duct according to claim 1, wherein the opening-closing membrane is a fl exible material. The noise reduction mechanism for an exhaust duct according to claim 1, wherein the front plate portion is formed with brushed surfaces.

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