KR20230110458A - Ventilating 0pening Apparatus - Google Patents

Abstract

Disclosed is a vent device. This ventilation device,
A cylindrical body portion 11 that opens up and down to form an air flow passage portion 14 through which air flow passes, and a flange portion 13 extending along an edge at an upper end of the body portion 11, and a vent body 10 forming a locking jaw 16 along the outer wall of the body portion 11; A guide pipe body 151 formed at the center of the air flow passage part 14 of the ventilation hole body 10 is formed, and a support rod 152 supporting the guide pipe body 151, a filter part 153 between the support rods 152, and an arm compression shaft portion 15 forming a guide protrusion 154; The upper portion forms a disk-shaped cap portion 21, and the lower portion forms a male joint shaft portion 22 in which cross-shaped blades 222 and spiral grooves 221 are formed, and the guide protrusion 154 of the female joint shaft portion 15. An opening and closing control unit 20 installed so that the spiral groove 221 is assembled by screwing; And a ring-shaped fastening member 17 formed with a fixing hole 171 for fixing the ventilation main body 10 to the ceiling and forming a guide groove 172 for guiding the locking protrusions 16 on the outer wall surface 11 of the ventilation main body 10. It provides a ventilation device comprising a.

Description

Ventilation apparatus {Ventilating Opening Apparatus}

The present invention relates to a ventilation device capable of exhausting indoor and outdoor air currents, which can be conveniently installed by applying a ring-shaped fastening part when installing a ceiling of a vent body, wherein an opening and closing control unit formed with a disc-shaped cap part and a male joint shaft portion, and a male joint shaft portion are screwed into the female joint shaft portion to adjust the distance between airflow passing through the indoor and outdoor areas.

In the meantime, many exhaust caps, vents, vent devices, etc. have been known as hood caps (duct ventilation, range hood ventilation caps) installed on the ceiling, ventilation caps (indoor air exhaust caps, etc.) on the outer wall of the duct to discharge odors and smoke through indoor air, range hoods, etc. In addition, fixed ventilation outlets are also known using chimneys as ventilation outlets, and these are composed of a wide inlet and outlet portion and a narrow neck portion passing through as the wind strength of a building or rooftop, and an exhaust passage in a direction orthogonal to the neck portion. Venturi type ventilation devices are known.

In particular, the non-powered indoor air exhaust device proposed and registered by the present inventor is also such a non-powered indoor air exhaust device.

That is, a non-powered ventilation device (including an exhaust device) is a tubular body penetrating the inside and outside of a building, installed on a ventilation passage of a building wall, and a ventilation duct formed by bending and extending the front end thereof to form a ring-shaped edge, a hood cap composed of a ventilation unit having a predetermined airflow exhaust structure in the front portion so as to penetrate the ventilation duct to be exposed from the outside of the building, and a ventilation means having a ring-shaped border formed at the rear end to be caught on the ring-shaped edge (registered patent 10-0525297) had suggested

On the other hand, the upper part is made of a narrow and lower part to form a trapezoidal cross section, the upper part of the trapezoid is concave inwardly to form a circular blocking plate, the lower part is an induction edge extending horizontally to form a ring shape, the inside of the induction edge to form an open end, and the end of the induction edge is curled to prevent the inflow of rainwater. A lower cylinder connected with an opening gap therebetween, a half plate interposed between the upper cover and the lower cylinder, a long bolt penetrating the guide edge of the upper cover to fasten the upper cover and the lower cylinder, a fastening means consisting of a nut fastened to the long bolt below the guide edge of the lower cylinder, and forming a tubular body so that the long bolt passes between the upper cover and the lower cylinder, and forming a guide surface extending horizontally in the longitudinal direction of the tubular body, Ventilation holes for ducts made of guide members that enable air flow guidance have also been registered.

However, these indoor air exhaust and vent devices have a common structure constituting the ventilation hole, even though the distance between the caps can be adjusted, the indoor air discharge width is limited and the moving air flow is reduced, so the function cannot be implemented.

Republic of Korea Patent No. 10-0970389 Korea Utility Model Registration No. 20-0450526 Republic of Korea Patent No. 10-1129019 Republic of Korea Patent Registration No. 10-0978862

(Patent Document 0001) Republic of Korea Patent Publication No. 10-2013-0092894

An object of the present invention is to provide an adjustment structure capable of adjusting the gap through which outside air passes through the cap part by improving the problems of the conventional ventilation device.

An object of the present invention is to provide a ventilation device capable of filtering fine dust in the air passing through the inside and outside and deodorizing the air.

An object of the present invention is to provide a ventilation device capable of supplying clean air into the room, wherein a filter is provided inside a ventilation hole, and when air passing through a duct inside a building is supplied to the room through the ventilation hole, fine dust or various foreign substances in the air are filtered by the filter.

In addition, it is an object of the present invention to provide a ventilation opening in which the filter can be easily and simply fixed inside the ventilation opening by means of a filter support or easily separated from the ventilation opening, whereby the filter can be easily exchanged.

An object of the present invention is to solve the conventional problems as described above and to provide a ventilation device having an improved structure so that installation is easy and assembly and separation between parts are easy.

In addition, an object of the present invention is to provide a ventilation hole for the ceiling in which structural spacing is simply adjusted, and to provide a ventilation device having an improved structure so that it can be firmly combined with the duct without damage to parts when connected to the duct.

In addition, an object of the present invention is to provide a ventilation device having an improved form so as to automatically adjust the degree of opening and closing of the ventilation hole.

Ventilation device of the present invention of a preferred embodiment for achieving the above object,

A double body portion composed of a cylindrical outer body that opens up and down to form a sub-passage through which air current passes, and an inner body that forms a main passage, and an expansion portion that extends obliquely from the inner body to the front outer rim and forms a plurality of through holes of different sizes and extends to the expansion surface and forms a flange, and a female joint shaft portion that forms a cylindrical shaft tube portion of a narrow diameter at the center of the double body unit and radially forms a support shaft and a filter member around the shaft tube shaft, Vent body forming a locking jaw along the outer wall of the body;

The upper part forms a disk-shaped cap part to open and close and adjust the gap “a” of the open space of the expansion surface part, and the lower part extends a predetermined length upward from the center of the bottom surface of the cap part to form a cross-shaped shaft blade, and at the radial end of the shaft blade, spiral grooves are formed in a spiral shape, and a male joint shaft portion is formed to form a passage “b” for passing air flow between the shaft blades. and

A ring-shaped fastening member formed with a fixing hole for fixing the vent main body to the ceiling and having guide grooves formed along an inner circumferential surface to guide the locking protrusions of the outer body of the vent main body and adjust the installation interval;

It is preferable to achieve as a ventilation device comprising a.

Ventilation device of the present invention of a preferred embodiment for achieving the above object,

A ventilation device further comprising a first filter formed of a plurality of micropores and installed between the supports, a second filter made of nonwoven fabric and installed below the first filter, a third filter made of a deodorizing filter and installed below the second filter, and a filter module composed of a closing member having a locking groove formed on the edge side to support and close the first, second, and third filters from below.

As described above, the ventilation device of the present invention is easy to combine and separate the opening and closing control hole covering the outdoor air and the ventilation body, and the ventilation body also forms locking jaws on the outer surface so that it is easy to mount and install by inserting the duct hole.

In the vent of the present invention, a filter is provided inside the vent body, and contaminants such as (ultra) fine dust or foreign matter in the air flowing into the body through the duct are filtered by the filter, and clean air purified by the filter can be supplied to the room.

In addition, the filter has a remarkable effect that it can be simply fixed inside the vent body by means of a filter support or easily separated from the body.

An unpowered indoor airflow exhaust device that discharges indoor airflow due to wind outside a building, which prevents air from flowing backward from the outside to the inside, enabling efficient ventilation as well as preventing rainwater from flowing backward from the outside.

1 is a combined perspective view of a vent device according to Embodiment 1 of the present invention;
2 is an exploded perspective view of a vent device according to Embodiment 1 of the present invention;
Figure 3 is a cross-sectional view explaining the operation of the vent device according to the first embodiment of the present invention,
Figure 4a is an extruded perspective view of the first filter of the ventilation device according to the first embodiment of the present invention,
Figure 4b is an excerpted perspective view of the closing member of the vent device according to the first embodiment of the present invention,
5 is an exploded perspective view of the filter member of the vent device according to the first embodiment of the present invention;
6 is a combined perspective view of a ventilator according to Example 2 of the present invention;
Figure 7 is an exploded perspective view of the vent fixture according to the second embodiment of the present invention,
Figure 8 is a combined cross-sectional view of the ventilation device according to the second embodiment of the present invention,
9 is a working cross-sectional view for explaining the operation of the vent device according to the second embodiment of the present invention,
10 is a schematic diagram showing the structure of the ventilation device according to the second embodiment of the present invention by connecting a forced air blowing unit in case of emergency;
11 is a diagram for explaining flow rates of internal and external air currents according to Bernoulli's theorem by citing conventional patent rights.

Hereinafter, a ventilation device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

<Example 1>

Of the accompanying drawings, FIG. 1 is an exploded perspective view of a vent device according to Embodiment 1 of the present invention with a ring-shaped fastening member, FIG. 2 is an exploded perspective view of the vent device according to Embodiment 1 of the present invention, FIG. 3 is a cross-sectional view illustrating the operation of the vent device according to Embodiment 1 of the present invention, FIG. 4A is a perspective view of a main filter of the vent device according to Embodiment 1 of the present invention, and FIG. FIG. 5 is an exploded perspective view of filter members of the vent device according to the first embodiment of the present invention.

The vent device according to the first embodiment of the present invention according to the drawings is largely composed of a vent main body 10, an opening and closing control unit 20, a female compression unit 15, and a ring-shaped fastening member 17.

As shown in FIGS. 2 and 3 of the drawings, the vent body 10,

A cylindrical body portion 11 with open front and rear ends, a flange portion 13 formed of an inclined surface 131 inclined inwardly, an inner wall surface 133, and a flange portion 132 formed at the upper end of the body portion 11 with an expanded diameter along the rim, and an airflow passage portion formed with a first passage 141 at the front and a second passage 142 at the rear inside the body portion 11 14) is formed, and the air flow passage part 14 is formed to have an open interval ("a") below the inclined surface 131, and the ventilation device 10 is installed along the outer wall surface 11 of the body portion 11. When installing, a plurality of locking jaws 16, which can adjust the installation height by the ring-shaped fastening member 17, are formed along the outer wall surface 11 in multiple rows.

Therefore, the ventilation main body 10 is pushed into the duct hole or the installation hole of the ceiling, etc., and the locking jaw 16 is installed in the ceiling, duct hole, etc. through the ring-shaped fastening member 17.

The female condensing shaft portion 15 forms a guide tube body 151 having a cylindrical cross section with a predetermined diameter and a predetermined length at the center of the air flow passage portion 14 of the vent main body 10, and at least two support tube bodies 152 are radially formed between the guide tube body 151 and the inner wall of the body unit 14 to support the guide tube body 151, and a filter unit 153 is formed between the support tube bodies 152, Guide protrusions 154 may be formed at predetermined spiral intervals on the inner wall surface 133 of the guide tube body 151 inside the support rod 152 .

The opening and closing control unit 20 forms a disk-shaped cap portion 21 that opens and closes and adjusts the gap "a" of the lower open space of the first passage 141 of the flange portion 13, and the lower portion extends a predetermined length upward from the center of the bottom surface of the cap portion 21 to form a cross-shaped shaft blade 222, and at the end of the shaft blade 222, spiral grooves 221 are formed in a spiral shape, and the shaft blade 222 ) Between them, it is possible to form a male condensed shaft portion 22 forming a passage "b" for air flow.

Therefore, the spiral groove 221 can be installed to the guide protrusion 154 of the female contraction shaft 15 so as to be screwed together.

* That is, the opening and closing control unit 20 has a disk-shaped cap portion 21 so that the interval "a" of the inclined surface 131 inside the flange portion 13 can be narrowed or the interval "a" can be widened.

In particular, the shaft blade 222 having a spiral groove 221 formed at the end of the male joint shaft portion 22 forms a cross shape radially from the central axis, and the air flow passes between the shaft blades 222. "b" can be formed as a guide. Together with the first air flow guide path "c", the second air flow guide path "b" can quickly discharge a large amount of polluted air flow such as indoor smoke at the same time.

When the distance "a" between the cap part 21 and the flange part 13 is set to be the most effective distance, an efficient exhaust effect can be achieved according to the method of discharging indoor airflow according to Bernoulli's theorem (a detailed description of Bernoulli's theorem will be described using FIG.

In this embodiment, when installed on the ceiling, etc., the male joint shaft portion 22 may be formed in a cylindrical shape instead of a cross-shaped shaft wing 222. In the case of a cylindrical shape, the second airflow guideway "b" is blocked and can be applied as an indoor ceiling ventilation hole.

The ring-shaped fastening part 17 forms an inner periphery 173 of a small inner diameter and an outer outer periphery 174 formed in a circular shape with a constant width in a ring shape. In order to fix the ventilation main body 10 to the ceiling, several fixing holes 171 are formed on the ring-shaped inner surface, and several guide grooves 172 can be formed along the inner circumference 173 to be guided to adjust the height during installation corresponding to the locking protrusions 16 of the outer wall surface 11 of the ventilation main body 10.

On the other hand, in the vent body 10 according to the first embodiment of the present invention, at least two or more support rods 152 are formed in the transverse direction across the first and second passages 141 and 142 inside the outer wall surface 11, and a filter unit 153 having relatively large diameter holes through which a plurality of air currents pass is formed between the support rods 152.

The filter member 153 of the ventilator according to the first embodiment of the present invention forms a plurality of fine holes between the supports 152 or forms a separate filtering material to perform a function of filtering foreign substances in the airflow passing through the airflow passage part 14.

That is, as shown in FIGS. 4A to 5 of the accompanying drawings, the filter module 30 includes a filter unit 153 or a first filter 31 formed between supports 152 by forming a plurality of fine holes, a second filter 32 made of nonwoven fabric and installed below the first filter 31, a third filter 33 made of filter material for deodorization and installed below the second filter 32, the first, second, While the third filters (31, 32, and 33) are sequentially inserted and stacked on the air flow passage (13), the lower part is closed, but like the first filter (31), the filter material is formed between the supports (152). The closing member (34) made of an open space can be tightened and fixed in various ways.

In embodiments of the present invention, it is possible to form a locking groove 341 on the edge side of the finishing member 34 and to form a locking jaw 19 on the inner wall of the body portion 11 to be hooked. The filters stacked on these filter modules 30 have through-holes (symbols, not shown) formed in the center to be inserted and installed below the female shaft portion 15, and the finish of the closing member 34 is the locking jaw 19. A locking groove 341 can be formed so that it can be inserted and fixed. Of course, each of the filter members may be inserted in turn by forming a passage groove (not shown) so as to be caught or passed through the locking jaw 19, but this embodiment is not shown.

Therefore, the indoor polluted airflow exhausted through the first passage 141 and the second passage 142 of the internal airflow passage 14 is purified through the filter module 30 and then exhausted so as not to pollute the atmosphere. The ventilation device according to the first embodiment may be installed on the ceiling to perform the function of an air purification vent.

The ventilation device equipped with the filter module 30 can be implemented by changing the overall shape of the filter module 30 by arranging various materials made of thin plates capable of free deformation in a regular or irregular waveform, and activated carbon particles can be deposited and applied to any one of the filter modules 30, and microorganisms included in the moving airflow can be collected through the activated carbon particles, and odors can be absorbed and deodorized.

Any one of each filter of the filter module 30 may be formed in various shapes including a cross-type waveform or a continuous waveform, and a thin aluminum plate material is suitable as a material for the support rod 152 forming the first filter 31. Aluminum sheet material is suitable as a filter core because it can constitute a core body with high flexibility and excellent processing and formability. In addition, copper can be processed into a thin plate and applied as the core of the support rod 152.

In the manufacture of the first filter 31 according to the present invention, first, a material such as aluminum, which becomes the support rod 152, is continuously molded into a strip-shaped thin plate, and then it is arranged in a regular or irregular waveform, and in the meantime, the surface of the first filter 31 is coated by spraying activated carbon particles, or a method of impregnating the surface of the first filter 31 with activated carbon particles to dry it.

Activated carbon particles coated and deposited on the surface of any one of the multiple filters 31, 32, 33, and 34 of the filter module 30 have an excellent odor deodorization effect compared to other materials. When applied to air conditioning vents installed to keep indoor air comfortable, it has a great effect on maintaining comfortable indoor air because it has an effect of removing odors contained in indoor air.

<Example 2>

Of the accompanying drawings, FIG. 6 is a combined perspective view of an air vent device according to Embodiment 2 of the present invention, FIG. 7 is an exploded perspective view of an air vent device according to Embodiment 2 of the present invention, and FIG. 8 is a combined cross-sectional view of the vent device according to Embodiment 2 of the present invention.

In this Embodiment 2, names of the same codes as described in Embodiment 1 are classified and explained as much as possible, but the same components are explained by applying the same codes.

The vent device according to the second embodiment of the present invention according to the drawings largely consists of a vent main body 100, an opening and closing control unit 12, and a ring-shaped fastening member 17.

The vent main body 100 is again divided into a double body part 118, an extended surface part 113, and a female condensation part 115.

* The double body portion 118 is composed of a cylindrical outer body 1183 that opens up and down to form a sub-passage 1184 through which air flow passes, and an inner body 1181 that forms a main passage 1182. In the main passage 1182 and the sub passage 1184, the filter modules 30 of FIGS. 4A to 5 of the first embodiment may be overlapped with the main passage 1182. In addition, although not shown, the sub-passage 1184 may be overlapped with the filter module 30 having a larger inner diameter compared to the filter module 30 of FIG. 5 in the same manner. The filter module 30 applied thereto includes a first filter 31 having general porosity and filtering foreign substances such as pests and insects, a second filter 32 made of non-woven fabric and installed below the first filter 31 to block viruses and bacteria, a third filter 33 made of a deodorizing material and installed below the second filter 32, the first filter 31, the second filter 32, and the third filter 33 It can be finished with a closing member 34 formed with a filter net made of metal wires for generating negative ions as well as forming an "a"-shaped locking groove 341 on the periphery side to support them after overlapping them from the bottom.

The expansion surface portion 113 obliquely extends from the inner body 1182 to the front outer rim, forms a plurality of through holes 1133 of different sizes, and forms an extended edge (not shown) formed by bending the expansion surface 1132. Flange 1131 is formed.

The female condensation shaft portion 115 forms a cylindrical shaft tube portion 1151 with a narrow diameter at the center of the double body portion 118, and the shaft tube portion 1151 radially divides several supports 1152 into the main passage 1181. It can be formed across the inner wall in a plate shape.

Between the supports 1152, an independent filter unit 1153 made of a porous filter may be formed therebetween, or the first filter 31 of the filter module 30 described above may be installed. The guide protrusions 1154 protrude at intervals in the spiral direction on the inside of the shaft tube portion 1151 supported as the cylindrical support shaft 1152, so that the spiral groove 221 formed on the shaft wing 222 of the male shaft portion 22 described above is screwed in the spiral direction, so that its length can be adjusted upwards.

The ventilation main body 100 may form several locking protrusions 116 along the outer wall of the outer body 1183 in the longitudinal direction, and is inclined in the insertion direction of the outer body 1183 and hung in the departure direction. As shown in FIG.

The opening and closing control unit 12 can be divided into a cap portion 121 and a male condensing shaft portion 122. The cap part 121 forms a disk-shaped cap part 121 to open and close and adjust the distance “a” between the open ends of the expansion surface part 113, and forms the cap part 121 at the inner center to a predetermined length.

The male joint shaft portion 122 extends a predetermined length while forming a cross-shaped shaft blade 1222 at the center of the cap portion 121, and at the end of the shaft blade 1222, spiral grooves 1221 are formed in a spiral direction, and between the shaft blades 1222, it is formed to form a passage "b" for air flow.

In the male joint shaft portion 122, a spiral groove 1221 is screwed into the guide protrusion 1154 of the female joint shaft portion 15, and the height is adjusted according to its rotation.

The ring-shaped fastening member 17 is a fastening member that forms an inner edge 173 inside the ring-shaped space having a predetermined width and an outer edge 174 having a width, and fixing the ventilation main body 10 to the ceiling. Several fixing holes 171 are formed along the width thereof, and several guide grooves 172 are formed in the inner edge portion 173 so that the aforementioned locking jaw 116 is caught and supported.

Therefore, the outer body 1183 of the vent body 10 is installed through the ceiling by passing through the ring-shaped fastening member 17, which is installed on the ceiling and has a through hole formed through the central inner edge 173 to fit the outer body 1183 of the vent main body 100. At this time, it is installed by adjusting the insertion depth in the guide groove 172 formed on the inner periphery 173 of the ring-shaped fastening member 17 by the locking jaw 116 .

In the present embodiment 2, the body portion 111, as shown in FIGS. 8 and 9, has an inner cylinder member (symbol omitted) composed of an inner body 1181 forming a main passage 1182 and a sub-passage 1184 to the outside. An outer cylinder member (symbol omitted) composed of an outer body 1183 forms a double body 118 in which inner and outer passages are formed. When necessary, the double body 118 exhausts the inner airflow to the outside through forced feeding. As described above, the first airflow “A1” of the second airflow guide path “b” formed between the cross-shaped shaft blades 1222 having the spiral groove 1221 of the male shaft portion 122 is formed, the second airflow “A2” flowing through the main passage 1182 and the third airflow flowing through the sub-passage 184 With the "A3", a large amount of airflow can be discharged at the same time in a large amount quickly. Of course, on the contrary, by driving the forced blowing unit 50 and driving the blowing motor 53 in the opposite direction, airflow in the room can be sucked in and exhausted.

At this time, when the distance "a" between the cap part 121 and the extended surface part 113 is sufficiently spaced to achieve the best exhaust efficiency, the exhaust efficiency can be ideal. Occasionally, through the forced air blowing unit 50, smoke, smell, etc. spread in the room can be strongly discharged at the same time, or clean air from the outside can be forcibly blown to purify the indoor air.

In the ventilation main body 100, at least two support rods 1152 are formed in the transverse direction across the main passage 1181, and relatively large diameter holes through which a plurality of air currents pass between the support rods 1152 are formed. Through the filter part 1153, the invasion of pests such as mosquitoes can be prevented.

The filter unit 1153 of the ventilator according to the second embodiment of the present invention performs a function of filtering airflow passing through the main passage 1181 by forming a plurality of fine holes between the supports 1152, and the first filter 31 of the filter module 30 of the following embodiment 2 can be implemented, and for convenience, the filter unit 1153 is used together with the same function.

The filter module 30 includes a first filter 31 formed of a plurality of micro-pores and having a plurality of micro-pores between support rods 1152 or having a porous plate shape without support rods 1152, a second filter 32 made of non-woven fabric and installed below the first filter 31, a third filter 33 made of a deodorizing material and installed below the second filter 32, the first filter 31, and the second filter (32), "A"-shaped hooking grooves 341 are formed on the edge side so as to support and finish the third filters 33 from the bottom, but they can be laminated and assembled with the finishing member 34 forming a predetermined porous filter network. Although not shown, hooking grooves (not shown) are formed at the edges of each filter 31, 32, and 33 to pass through the hooking jaws 19 formed on the inner wall surface (symbols omitted), and then overlap the finishing member 3 4) can be assembled as.

Among the accompanying drawings, FIG. 9 is a working cross-sectional view for explaining the operation of the vent device according to Embodiment 2 of the present invention, and FIG. 10 is a schematic diagram showing the structure of the ventilation device according to Embodiment 2 of the present invention connected to a forced blowing unit in case of emergency.

According to the above drawings, the airflow exhaust action in the case of requiring rapid forced exhaust of indoor polluted air according to the second embodiment of the present invention will be described.

10 may install a blower unit 50 so that exhaust is exhausted through a switching means (not shown). That is, the connecting member 51 connected to the rear end of the ventilation main body 10 and 110 of the first and second embodiments, the blowing fan 52 to which the rear end of the connecting member 51 is connected, and the blowing fan 52. It can be composed of a drive motor 53 for driving. As described above, the internal airflow can be forcibly exhausted by connecting a flexible connection member 51 such as a hose that can be selected to fit the diameter of the inner body 1181 or the outer body 1183 where the filter module 30 of the second embodiment is installed.

The forced blowing unit 50 connects the insertion hole (not shown) of the connecting member 51 connected to the blowing fan 52 and the drive motor 53 to the rear end of the inner body 1181 to forcibly blow the internally polluted airflow and at the same time to suck the nearby contaminated airflow through the outer body 1183. This can be explained according to the principle of Bernoulli's theorem described later, and the gap According to "a"), the airflow described below may be discharged according to external suction.

That is, with respect to the air flow movement of the vent device 10 (100) according to the embodiment of the present invention, the generally known Bernoulli theorem of Registered Patent No. 10-1865613 proposed by the holder of the prior present invention according to FIG.

That is, when passing through the neck part (b), according to [Equation 1] and [Equation 2] (Bernoulli's equation), the passage speed of the airflow through the neck part (b) increases and the pressure decreases.

[Equation 1]

[Equation 2]

When the distance "a" between the outer cover member and the outside air guide member according to [Equation 1, 2] is 7 cm, the diameter of the neck of the venturi pipe (b) is preferably 2.2 to 2.8 cm. That is, in general, when the hourly exhaust volume of a ventilator using outdoor air is set at 120 (liter) as the amount of fluid, the passing air flow rate (fluid volume) is 2.0 (liter) per minute, and the inner diameter of the vertical exhaust passage is 7.0 cm, the actual measurement result of the passing pressure (P1) is 0.36 kgf / cm 2, and the flow rate is 0.80 to 0.9 m per second, calculated by the following formula: 0. 86.

That is, V1=Q/A1=[0.000033㎥/s]÷[(0.007m) ² (π/4)]=0.86m/s

Here, V1 represents the flow rate per second (m / s) at the passage inlet (a) of the outdoor air, Q represents the amount of passing gas (m / s), and A ₁ represents the cross-sectional area (m / s) of the outdoor air inlet / outlet interval (a). When the outer air passage, inlet, and outlet distance (a) is fixed at 7.0 cm, and the pipe diameter (D ₂ ) of the middle neck (b) is changed to 2.0 cm, 2.5 cm, and 3.0 cm, the flow rate (V ₂ ) and the pipe pressure (P ₂ ) were calculated by the following [Equation 3] (Bernoulli equation), and the results are shown in Table 1.

[Equation 3]

In the above formula, P ₁ represents the passing pressure of the outside air at the inlet (a), P ₂ represents the pressure inside the pipe of the neck (b), ρ is the density of the gas (1,000 kg / ㎥), V ₁ is the flow rate of the inlet and outlet interval (a), and V ₂ represents the flow rate of the throat (b).

Table 1

As shown in Table 1, as the pipe diameter of the neck part (b) narrows, the flow rate in the neck part (b) is proportional to the reciprocal of the square of the ratio of the pipe diameter of the neck part (b) to the diameter of the external air cylinder and the inlet and outlet part (a). When the pipe diameter of the neck part b is set to 2.0 cm, the pressure inside the pipe becomes negative, so that the exhaust passage can reach the neck part b along the exhaust passage in a state where the exhaust amount of the exhaust passage is not controlled. Although the distance (c) of the exhaust passage is divided into both sides in the drawing, it was actually calculated as the passage area excluding the area of the long axis located in the center. Therefore, when the distance between the outer cover member and the outside air guide member and the inlet/outlet distance (a) is 7 cm, the diameter of the neck of the Venturi tube (b) is preferably 2.2 to 2.8 cm. Control is possible within this range. Preferably, the diameter of the neck of the Venturi tube (a) is 2.5 cm. As schematically compared in the cross-sectional views taken along the a-a' line, b-b' line, and c-c' line in FIG. 8A of the accompanying drawing of Patent Registration No. 10-1865613, when the distance (a) between the inlet and outlet parts of the external air cylinder is 7 cm, the diameter of the neck of the venturi tube (b) is preferably 2.5 cm, and the diameter of the exhaust passage 31 is preferably 1.0 cm.

That is, it can be seen that the ratio of the inlet/outlet distance (a):neck part distance (b):exhaust passage (c) is 7.0:2.2 to 2.8:1.0.

[Equations 1, 2, 3] and {Table 1} analyzed in the conventional Patent Registration No. 10-1865613. When the air passage inlet and outlet distance (a) between the outer cover member and the outdoor air guide member is 7 cm, the diameter of the neck of the Venturi tube is preferably 2.2 to 2.8 cm. That is, in general, when the displacement per hour of a ventilator using outdoor air is set to 120 (liter) as the fluid amount, the passing air flow rate (fluid amount) is 2.0 (liter) per minute, and the inner diameter of the vertical exhaust passage is 7.0 cm, the actual measurement result of the passing pressure (P1) is 0.36 kgf / cm2, and the flow rate is 0.80 to 0.9 m per second. Consistent with 0.86 calculated did In this way, when the distance (a) between the inlet and outlet parts of the external air cylinder is 7 cm, the diameter of the neck of the venturi pipe (b) is preferably 2.5 cm, and the diameter of the exhaust passage) is preferably 1.0 cm. That is, it can be seen that the ratio of the inlet/outlet interval: throat interval: exhaust passage is 7.0:2.2 to 2.8:1.0.

Of the accompanying drawings, FIG. 9 is a cross-sectional view illustrating an air flow operation of a vent device according to Embodiment 2 of the present invention, and FIG. 10 is a schematic diagram showing a structure in which a forced blower unit is connected and implemented in an emergency of the vent device according to Embodiment 2 of the present invention.

As shown in these drawings, the second embodiment of the present invention provides an instantaneous and rapid discharge structure of indoor air current.

In general, indoor air exhaust and ventilation devices have a common structure constituting the ventilation hole, and even if the spacing of the cap part is adjustable, the indoor air discharge width is limited and the moving air flow is reduced, so the function cannot be implemented.

As described through the above embodiments 1 and 2, the ventilation device of the present invention is easy to install and reduce installation time because the coupling and separation between parts is simple, and it is possible to conveniently install it even if you are not a construction expert.

In the ventilation vent of the present invention, a filter is provided inside the vent body, and pollutants such as (ultra) fine dust or foreign substances in the air flowing into the body through the duct are filtered by the filter to supply clean air to the room.

As an unpowered indoor airflow exhaust device that discharges indoor airflow by the wind outside a building, it is possible to provide a non-powered ventilation device that prevents air from flowing backward from the outside to the inside, thereby enabling efficient ventilation as well as preventing rainwater from flowing backward from the outside.

Although the preferred embodiments of the present invention have been described with reference to the drawings as described above, those skilled in the art can variously modify or change the present invention without departing from the spirit and scope of the present invention described in the claims below.

"a": interval, "b": second air flow guide route, "c": first air flow guide route,
A1: 1st air flow, A2: 2nd air flow, A3: 3rd air flow, 10,110: ventilation main body, 11: body part,
13: flange unit, 30: filter module, 31: first filter, 32: second filter, 33: third filter,
34: finishing member, 341: locking groove, 131: inclined surface, 132: flange, 133: inner wall surface,
14: air flow guide, 141: first passage, 142: second passage, 15: arm joint shaft, 151: guide tube,
152: support interval, 153: filter member, 154: guide protrusion, 16: locking jaw, 17: ring-type fastening member,
171: fixing hole, 172: guide groove, 20: opening and closing control part, 21: cap part, 22: male joint shaft part,
221: spiral groove, 222: shaft blade, 113: expansion surface, 1131: flange, 1132: expansion surface,
1133: through hole, 115: female joint shaft part, 1151: shaft pipe part, 1152: support interval, 1153: filter part,
1154: guide protrusion, 116: locking jaw, 120: opening and closing control part, 121: cap part, 122: male joint shaft part,
1221: spiral groove, 1222: shaft wing, 170: ring-shaped fastening member, 171: fixed hole, 172: guide groove,
173: inner circumference, 174: outer edge, 118: double body, 1181: inner body, 1182: main passage,
1183: external body, 1184: sub-passage, 19: catch jaw,

Claims (1)

In the ventilation device,
A double body portion composed of a cylindrical outer body opening up and down to form a sub-passage through which air flow passes, and an inner body forming a main passage, and extending obliquely from the inner body to the front outer rim and forming a plurality of through-holes of different sizes, as well as extending to the expansion surface and forming a flange, forming a cylindrical shaft tube portion having a narrow diameter at the center of the double body unit, and forming a support shaft and a filter member radially around the shaft tube. Vent main body forming a locking jaw along the outer wall of the outer body;
The upper portion forms a disk-shaped cap portion to open and close the open space “a” of the expansion surface portion, and the lower portion extends a predetermined length upward from the center of the bottom surface of the cap portion to form a cross-shaped shaft blade, and at radial ends of the shaft blade, spiral grooves are formed in a spiral shape, and a male joint shaft portion is formed to form a passage “b” for air flow passage between the shaft blades. and
A ring-shaped fastening member formed with a fixing hole for fixing the vent main body to the ceiling and having guide grooves formed along an inner circumferential surface to guide the locking protrusions of the outer body of the vent main body and adjust the installation interval;
including,
A filter module composed of a first filter formed with a plurality of fine pores and installed between the supports, a second filter made of nonwoven fabric and installed below the first filter, a third filter made of a deodorization filter and installed below the second filter, and a closing member having a catching groove formed on the edge side to support and close the first, second, and third filters from below;
Ventilation device further comprising a.