JP2003185186A - Ventilating direction controller and building equipped therewith - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilating direction controller and a building equipped therewith, enabling a hollow layer between double window sashes such as double glazing sashes or between double walls to be used in ventilation and air- conditioning as necessary, while enabling outside air to be admitted into the building or air inside the building to be discharged to the outside air, and achieving energy savings. <P>SOLUTION: The ventilating direction controller 1 includes a casing 24 with openings 21, 22 and 23; a flap 26 disposed in a space 25 inside the casing 24 in such a manner as to be rotatable in A and B directions so that it can close the openings 21, 22 and 23 by rotating in the A and B directions; and a rotating means 27 for rotating the flap 26 in the A and B directions. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation direction control device suitable for ventilating inside and outside a building and inside a building by utilizing a hollow layer provided on a building wall by a double wall or a double shoji. Regarding a building equipped with.

[0002]

In the windows of recent buildings,
The glass screen is doubled and a hollow layer (air layer) is provided between them, and this hollow layer is used as a heat insulating layer to prevent the temperature inside the building from being affected by temperature changes in the outside air, and to maintain the temperature inside the building. Attempts have been made to reduce the energy consumption for

By the way, since the hollow layer is usually hermetically sealed, the temperature of the air in the hollow layer rises remarkably when the double glass shoji is exposed to sunlight during the daytime, such as in summer. There is a possibility that the air temperature becomes equal to or higher than the outside temperature, the load on the cooling in the building increases, and energy consumption cannot be reduced enough to be expected.

In addition, since the windows of recent high-rise buildings cannot be opened / closed for the purpose of prevention of danger, etc., the inside and outside of the building includes heating / cooling even if the outside air has suitable temperature and humidity. It is necessary to perform air conditioning, and the amount of energy consumed by this is enormous. Moreover, since such air conditioning circulates air in the building, once the air is contaminated with bacteria etc. May occur.

The above-mentioned problems can similarly occur when the building walls are double walls and a hollow layer is provided between the double walls.

The present invention has been made in view of the above points, and its object is to provide a double window screen such as a double glass screen or a hollow layer between the double walls, if necessary. (EN) A ventilation direction control device that can be used for ventilation and air conditioning and that can introduce outside air into the building or discharge air inside the building to the outside air, and also realize energy saving, and a building equipped with this. .

[0007]

A ventilation direction control device according to a first aspect of the present invention includes a casing having three or more openings and a rotatably arranged inside the casing so that the openings can be opened and closed by rotation. And a rotation means for rotating the flap.

According to the ventilation direction control device of the first aspect,
Since three or more openings can be opened and closed by rotating the flaps, one opening is a double window screen or a hollow layer between double walls, another one is inside the building, and yet another. One of the openings is connected to the outside of the building, that is, to the outside air,
For example, by opening one opening and the other one opening and closing the other one opening with a flap,
The hollow layer can communicate with the inside of the building, and the hollow layer can be used as a ventilation or air-conditioning passage. Therefore, when the hollow layer is used as a ventilation passage, for example, in the summer, the air in the hollow layer is not exposed. It is possible to prevent over the temperature and reduce the load on the cooling in the building, resulting in energy saving
Moreover, when the hollow layer is used as an air-conditioning passage, the air warmed in the hollow layer can be used for heating, for example, in winter, as a result of which energy saving can be realized and, for example, one opening can be closed by a flap. On the other hand, by opening the other one opening and the other one opening, the outside air can be introduced into the building or the air in the building can be discharged into the outside air, and the inside of the building can be cleaned with fresh outside air. In addition, for example, by opening one opening and yet another opening while closing the other opening by a flap, the hollow layer communicating with the outside air can be used as a ventilation or air conditioning passage. When the hollow layer is used as a ventilation passage, it is possible to prevent the air in the hollow layer from reaching an ambient temperature or higher in the summer, and to reduce the load on the cooling in the building, resulting in energy saving. Can be realized Moreover, in the case of a hollow layer as a passage of the air conditioning, for example the result of the air heated by the hollow layer in winter or the like can be used for heating, it can achieve this also energy saving.

Even if the flap can close the openings one by one as in the second aspect of the present invention, as in the third aspect of the present invention, at least two openings are simultaneously put together. You may be able to close it.

In the ventilation direction control device of the fourth aspect of the present invention, in the ventilation direction control device of any one of the first to fourth aspects, the flap has an arc surface, and the casing has an arc of the flap. It has a shape corresponding to the surface and has at least a pair of arc surfaces adjacent to each other, and one opening is arranged between the pair of arc surfaces.

The flap having the arcuate surface may be hollow or solid, and the casing having the pair of arcuate surfaces may also be hollow or solid. When the flap and the casing are hollow, the weight can be reduced, and particularly, when the flap is hollow, the flap can be smoothly rotated.

In the ventilation direction control device of the fifth aspect of the present invention, in the ventilation direction control device of the fourth aspect, the casing is a seal in which the arc surface of the flap is slidably in contact with the central portion of the arc surface. Have members.

Although it is possible to ensure the closure of the opening by having such a sealing member, instead of the sealing member, the casing is bulged at the central portion of the arcuate surface to form a bulged portion. The arcuate surface of the flap may slidably contact the bulging portion. In any case of the seal member and the bulging portion, the casing may be configured by including these at the end of the arc surface of the casing instead of the center of the arc surface of the casing.

The casing is preferably the first casing part having one arc surface and the second casing part having the other arc surface, like the ventilation direction control device of the sixth aspect of the present invention. And a third casing portion having a substantially flat surface that cooperates with the first and second casing portions to form the other two openings, and a circular arc surface provided in the center of the substantially flat surface. And a pair of other seal members with which the flap portions at the respective ends abut.

In the ventilation direction control device of the sixth aspect,
Each casing portion is preferably a hollow body in order to reduce the weight.

According to a seventh aspect of the present invention, there is provided a ventilation direction control device comprising: a hollow layer provided on a building wall; and a lower inner passageway defined by a lower body of the hollow layer and communicating with the inside of the building. A lower outer passageway defined by the lower body and communicating with the outside of the building, an upper inner passageway defined by the upper body of the upper part of the hollow layer and communicating with the building, and defined by the upper body In addition, it is arranged in the lower part of the building that has an upper outer passage communicating with the outside of the building, and controls the communication between the hollow layer and the lower inner passage, and the communication between the hollow layer and the lower outer passage. Control and communication between the lower inner passage and the lower outer passage are controlled, and a casing having openings communicating with the hollow layer, the lower inner passage and the lower outer passage, and opening and closing each opening by rotation. I can do it A flap is arranged rotatably in the casing, and a rotating means for rotating the flap.

According to the ventilation direction control device of the seventh aspect,
By rotating the flap to open the opening communicating with the hollow layer and the opening communicating with the lower inner passage, and closing the opening communicating with the lower outer passage with the flap, the hollow layer and the interior of the building are communicated with each other. The hollow layer can be used as a passage for ventilation or air conditioning. Therefore, when the hollow layer is used as a passage for ventilation, it is possible to prevent the air in the hollow layer from reaching an ambient temperature or higher in the summer, for example. As a result, the load on the cooling in the building can be reduced, resulting in energy saving. Moreover, when the hollow layer is used as an air-conditioning passage, the air warmed by the hollow layer can be used for heating, for example, in winter. As a result, energy saving can also be realized, and the flap is rotated to close the opening communicating with the hollow layer by the flap, while opening the openings communicating with the lower inner passage and the lower outer passage, respectively. A result, the air in the introduction or building outside air into the building be discharged to the outside air, can turn the building clean with fresh outside air, is furthermore rotating flap,
By opening the opening communicating with the hollow layer and the opening communicating with the lower outer passage and closing the opening communicating with the lower inner passage with the flap, for example, the hollow layer can be used as a simple passage or an air conditioning passage. When the hollow layer is simply used as a passage, it is possible to prevent the air in the hollow layer from reaching an ambient temperature or higher in the summer, and to reduce the load on the cooling in the building, resulting in energy saving. In addition, when the hollow layer is used as an air-conditioning passage, the air warmed in the hollow layer can be used for heating, for example, in winter, and as a result, energy saving can be realized.

According to an eighth aspect of the present invention, there is provided a ventilation direction control device comprising: a hollow layer provided on a building wall; and a lower inner passage defined by a lower body of the hollow layer and communicating with the inside of the building. A lower outer passageway defined by the lower body and communicating with the outside of the building, an upper inner passageway defined by the upper body of the upper part of the hollow layer and communicating with the building, and defined by the upper body And the upper outer passage that communicates with the outside of the building and is arranged in the upper body of the building. Control of communication between the hollow layer and the upper inner passage, communication between the hollow layer and the upper outer passage And the communication between the upper inner passage and the upper outer passage are controlled, and a casing having openings communicating with the hollow layer, the upper inner passage and the upper outer passage, respectively, and opening and closing each opening by rotation. I can do it A flap is arranged rotatably in the casing, and a rotating means for rotating the flap.

According to the ventilation direction control device of the eighth aspect of the present invention, the flap is rotated to open the opening communicating with the hollow layer and the opening communicating with the upper outer passage to communicate with the upper inner passage. By closing the opening to be closed with a flap, the hollow layer and the outside of the building can be communicated with each other, and thus the air in the hollow layer can be prevented from exceeding the ambient temperature in the summer, for example. As a result of reducing the load on the cooling of the air conditioner, energy saving can be realized, and the flaps are rotated to close the openings communicating with the hollow layer by the flaps, while the openings communicating with the upper inner passage and the upper outer passage respectively. By opening the air, the outside air can be introduced into the building or the air inside the building can be discharged into the outside air, and the inside of the building can be cleaned with fresh outside air. By opening the opening communicating with the upper inner passage and the opening communicating with the upper inner passage and closing the opening communicating with the upper outer passage with the flap, the hollow layer can be used as an air-conditioning passage. As a result of being able to use the air warmed in the hollow layer for heating, this also realizes energy saving.

Preferably, as in the ventilation direction control device according to the ninth aspect of the present invention, the lower inner passage is opened and communicates with a room in the building, and the lower outer passage is opened to the outside air outside the building. The upper inner passage communicates with an air conditioner, a heat exchanger, or a blower, and the upper outer passage opens and communicates with outside air outside the building.

The hollow layer, like the ventilation direction control device according to the tenth aspect of the present invention, is composed of a space between the double-window screens installed in the windows of the building wall, and in this case, each of the double-window screens. Shoji, like the ventilation direction control device of the eleventh aspect of the present invention,
Equipped with glass shoji.

As in the ventilation direction control device according to the twelfth aspect of the present invention, preferably, the lower body is a lower frame body arranged in the lower part of the window, and the upper body is arranged in the upper part of the window. It consists of an upper frame.

Alternatively to the above, the hollow layer may be composed of a space between the double walls of the building wall, as in the ventilation direction control device of the thirteenth aspect of the present invention. As in the airflow direction control device according to the fourteenth aspect of the present invention, the lower body includes a lower wall disposed below the double wall, and the upper body includes an upper wall disposed above the double wall. It is good to have

Also in the ventilation direction control device according to any one of the seventh to fourteenth aspects, preferably, like each of the ventilation direction control devices according to the fifteenth to eighteenth aspects, the flap has an opening. Can be closed one by one,
The flap has an arc surface, and the casing has a shape corresponding to the arc surface of the flap and has at least a pair of arc surfaces adjacent to each other, and an opening is arranged between the pair of arc surfaces. The casing has a seal member with which the circular arc surface of the flap slidably contacts the central portion of the circular arc surface, and the casing has a first casing section having one circular arc surface. A second casing portion having the other circular arc surface, a third casing portion having a substantially flat surface that cooperates with the first and second casing portions to form the other two openings, and is substantially flat. And a pair of other seal members which are provided at the center of the surface and at which the flap portions at each end of the arc surface abut.

It should be noted that it is preferable to dispose a filter that does not allow dust to pass therethrough, at the opening of the casing, each passage, and both ends of the hollow layer, especially at both ends of the hollow layer.

Next, the present invention and its embodiments will be described in more detail based on the preferred examples shown in the drawings. The present invention is not limited to these examples.

[0027]

1 to 3, a building 2 equipped with a ventilation direction control device 1 of this example is installed in a hollow layer provided on a building wall, in this example, a window 3 of a wall of the building 2. A double window shovel, in this example, a hollow layer 7 between the double window shovels 6, each shoji comprising glass shoji 4 and 5, and a lower frame 8 as a lower body under the hollow layer 7. A lower inner passageway 10 that is defined and opens to communicate with a room 9 in the building 2, a lower outer passageway 12 that is defined by the lower frame 8 and that opens to the outside air 11 outside the building 2, and a hollow An upper inner passage 17 which is defined by an upper frame 15 as an upper body of the upper part of the layer 7 and communicates with an air conditioner, a heat exchanger or a blower 16 in the building 2 via a duct 13 in the ceiling.
An upper outer passage 18 which is defined by the upper frame 15 and is open to and communicates with the outside air 11 outside the building 2, and is defined by the lower frame 8 and is opened at the lower end of the hollow layer 7. And a passage 20 which is defined by the upper frame 15 and which opens at the upper end of the hollow layer 7.

In this example, the ventilation direction control device 1 is arranged in the lower frame 8 of the building 2, and controls the communication between the hollow layer 7 and the lower inner passage 10 via the passage 19, and the hollow layer 7 and the lower outer passage. The communication between the hollow layer 7, the lower inner passage 10 and the lower outer passage 12 is controlled, and the openings 21, 22 communicating with the hollow layer 7, the lower inner passage 10 and the lower outer passage 12 are controlled. With casing 2 and 23
4 and the openings 21, 22 and 2 by rotation in the A and B directions.
The space 2 in the casing 24 so that each of the 3 can be opened and closed.
A flap 2 that is rotatably arranged in the A and B directions on 5
6 and rotation means 27 for rotating the flap 26 in the A and B directions.

The casing 24 has a hollow casing portion 32 having an arcuate surface 31 having a shape corresponding to the arcuate surface 30 of the flap 26, and a shape corresponding to the arcuate surface 30 of the flap 26 and is adjacent to the arcuate surface 31. Arc surface 3
A hollow casing portion 34 having 3 and a casing portion 3
A hollow casing part 36 having a substantially flat surface 35 which cooperates with 2 and 34 to form the two openings 22 and 23 and fits in the casing parts 32 and 34 at the center of each of the arcuate surfaces 31 and 33. The seal member 3 that is provided in a fixed manner and in which the arcuate surface 30 of the flap 26 slidably contacts
7 and 38, and a pair of parts 40 and 41 of the flap 26 at each end of the arcuate surface 30 that are fitted and provided so as to face the protrusion 39 of the casing portion 36 at the center of the substantially flat surface 35. Sealing members 42 and 43
And the closing plate portions 45 and 46 fixed to both ends of the casing portions 32 and 34 with screws 44 or the like, the flap 26 can close the openings 21, 22 and 23 one by one. The opening 21 is arranged between the pair of arcuate surfaces 31 and 33.

The flap 26 includes a hollow fan-shaped flap body 51 having an arcuate surface 30 and a rotatable shaft 52 to which the flap body 51 is fixed.
2 is a bearing 5 provided on each of the closing plate portions 45 and 46.
The closing plate portions 45 and 46 are rotatably supported in the A and B directions via 3 and 54, respectively.

The glass screens 4 and 5 are fixed to the lower frame 8 and the upper frame 15, respectively, and the upper inner passage 17, the upper outer passage 18 and the passage 20 communicate with each other in the upper frame 15 as they are in this example. Has been done.

The rotating means 27 comprises an electric motor 55 attached to the closing plate portion 45 in this example.
The output rotary shaft 56 of is connected to the rotatable shaft 52,
The electric motor 55 rotates the rotatable shaft 52 in the A and B directions by its operation. After the flap 26 is rotated, the openings 21, 22 formed by the flap body 51 are
A detector (not shown) for detecting the closure of each of the electric motors 23 and 23 is provided, and the electric motor 55 stops its operation in response to a detection signal from the detector.

The open end of the lower inner passage 10 to the chamber 9, the open end of the lower outer passage 12 to the outside air 11, the passages 19 and 2
0 to the hollow layer 7, the air conditioner of the upper inner passage 17,
A filter 57 for blocking the passage of dust is arranged at each of the communication ends to the heat exchanger or the blower 16.

In the ventilation direction control device 1 used in the building 2 as described above, the flap 26 is operated by the operation of the electric motor 55.
4 is rotated to bring the opening 21 communicating with the hollow layer 7 by bringing the arc surface 30 of the flap body 51 into contact with both seal members 37 and 38, as shown in FIG.
The outside air 11 is introduced into the room 9 in the building 2 or the room 9 in the building 2 by opening each of the openings 22 and 23 communicating with the lower inner passage 10 and the lower outer passage 12, respectively. The air can be discharged to the outside air 11, and the room 9 in the building 2 can be cleaned with fresh outside air.

Further, in the ventilation direction control device 1, the flap 26 is rotated by the operation of the electric motor 55, and the flap 26 of FIG.
As shown in FIG. 5, the opening 21 communicating with the hollow layer 7 and the opening 23 communicating with the lower outer passage 12 are opened to bring the arc surface 30 of the flap body 51 into contact with the seal member 37, and the portion 40 of the flap body 51. By contacting the seal member 42 with the seal member 42 and closing the opening 22 communicating with the lower inner passage 10 by the flap body 51, the hollow layer 7 can be a simple passage or an air-conditioning passage. In such a case, due to the chimney effect of the hollow layer 7, it is possible to prevent the air in the hollow layer 7 from reaching an ambient temperature or higher in the summer, etc., and reduce the load on the cooling of the room 9 in the building 2. Energy can be realized, and when the hollow layer 7 is used as an air-conditioning passage, the air warmed in the hollow layer 7 can be used for heating in winter or the like. As a result, energy saving can be realized.

Further, in the ventilation direction control device 1, the flap 26 is rotated by the operation of the electric motor 55 so that the opening 21 communicating with the hollow layer 7 and the lower inner passage 10 are communicated with each other, as shown in FIG. 4 (c). The opening 22 communicating with the seal member 4 is opened so that the arc surface 30 of the flap body 51 is brought into contact with the seal member 38, and the portion 41 of the flap body 51 is sealed.
By closing the opening 23, which is in contact with 3 and communicates with the lower outer passage 12, with the flap body 51, the hollow layer 7
And the room 9 in the building 2 can be communicated with each other, and the hollow layer 7 can be used as a ventilation or air-conditioning passage. Therefore, when the hollow layer 7 is used as a ventilation passage, the chimney effect of the hollow layer 7 can be obtained. Thus, for example, in the summer, the air in the hollow layer 7 can be prevented from exceeding the ambient temperature, and the load on the cooling of the room 9 in the building 2 can be reduced. As a result, energy saving can be realized, and
When the hollow layer 7 is used as an air-conditioning passage, the air warmed in the hollow layer 7 can be used for heating, for example, in winter, so that energy saving can be realized.

In the above example, the ventilation direction control device 1 has the lower frame 8
However, instead of this, as shown in FIG. 5, the ventilation direction control device 1 is arranged on the upper frame 15 of the building 2,
Control of communication between the hollow layer 7 and the upper inner passage 17, the hollow layer 7
Of the communication between the upper outer passage 18 and the upper inner passage 1
7 and the upper outside passage 18 are controlled to communicate with each other,
A casing 24 having openings 21, 22 and 23 communicating with the hollow layer 7, the upper inner passage 17 and the upper outer passage 18, respectively, and a rotation inside the casing 24 so that the openings 21, 22 and 23 can be opened and closed by rotation. The ventilation direction control device 1 is provided with a flap 26 freely arranged and a rotating means 27 (see FIG. 3) for rotating the flap 26.
May be configured.

In the case of the ventilation direction control device 1 arranged on the upper frame 15 of the building 2 as shown in FIG. 5, the flap body 51 of the flap 26 is rotated to open the opening 21 communicating with the hollow layer 7 as described above. And the opening 23 communicating with the upper outer passage 18 are opened, and the opening 22 communicating with the upper inner passage 17 is closed by the flap body 51, thereby communicating the hollow layer 7 with the outside air 11 outside the building 2. As a result, the air in the hollow layer 7 can be prevented from exceeding the ambient temperature in the summer, for example, and the load on the cooling of the room 9 in the building 2 can be reduced, resulting in energy saving. The flap body 51 is rotated to close the opening 21 communicating with the hollow layer 7 by the flap body 51, while the openings 22 and 23 communicating with the upper inner passage 17 and the upper outer passage 18 are opened. By releasing, the outside air 11 is introduced into the air conditioner, heat exchanger or blower 16 in the building 2 via the duct 13 in the ceiling, or the air in the building 2 is discharged to the outside air 11 via the duct 13 in the ceiling. It is possible to clean the inside of the building 2 with fresh air, and the flap body 5
By rotating 1 to open the opening 21 communicating with the hollow layer 7 and the opening 22 communicating with the upper inner passage 17 and closing the opening 23 communicating with the upper outer passage 18 by the flap body 51, Layer 7 can be used as a passage for air conditioning,
Thus, the air warmed in the hollow layer 7 can be used for heating, for example, in winter, and as a result, energy saving can be realized.

Further, as shown in FIG. 5, the ventilation direction control device 1 is arranged on the upper frame 15 of the building 2 and also on the lower frame 8 of the building 2 so that the hollow layer 7 and the upper inner passageway 17 communicate with each other. Control of the communication between the hollow layer 7 and the upper outer passage 18, control of the communication between the upper inner passage 17 and the upper outer passage 18, and control of the communication between the hollow layer 7 and the lower inner passage 10, The above effects may be preferably and optimally obtained by appropriately controlling the communication with the lower outer passage 12 and the communication with the lower inner passage 10 and the lower outer passage 12.

Further, in the above example, the three openings 21, 22 are
The ventilation direction control device 1 is configured such that each of the openings 21, 22 and 23 is closed by the flap 26 with the casing 24 including the and 23, but instead of this, from (a) of FIG. As shown in d), with a casing 75 having four openings 71 to 74, at least two openings are collectively and simultaneously closed by the flap 26. In the case of FIG. 71 and 7
2 are closed at the same time, and in the case of FIG.
And 73 simultaneously closed, in the case of FIG. 6 (c) the openings 73 and 74 are closed simultaneously, and in the case of FIG. 6 (d) the openings 74 and 71 are closed simultaneously. The ventilation direction control device 76 may be configured as described above. In this case, for example, the opening 73 is provided in the hollow layer 7 and the opening 74 is provided in the chamber 9
Alternatively, the opening 71 may be communicated with the lower hollow layer 7, and the opening 72 may be communicated with the outside air 11.

[0041]

EFFECTS OF THE INVENTION According to the present invention, if necessary, a double window screen such as a double glass screen or a hollow layer between double walls can be used for ventilation and air conditioning, and outside air can be introduced into the building. Alternatively, it is possible to provide a ventilation direction control device capable of discharging the air in the building to the outside air and realizing energy saving, and a building equipped with the same.

[Brief description of drawings]

FIG. 1 is a sectional view of a preferred example of an embodiment of the present invention.

FIG. 2 is a partial cross-sectional perspective view of the ventilation direction control device of the example shown in FIG.

3 is a cross-sectional explanatory view of the ventilation direction control device of the example shown in FIG.

FIG. 4 is an operation explanatory diagram of the example shown in FIG. 1.

FIG. 5 is a cross-sectional view of another preferable example of the embodiment of the present invention.

FIG. 6 is a sectional explanatory view of still another preferred example of the embodiment of the present invention.

[Explanation of symbols]

1 Ventilation direction control device 2 buildings 3 windows 4,5 glass shoji 6 double window shoji 7 Hollow layer 8 bottom frame 9 rooms 10 Lower inner passage 11 Outside air 12 Lower outer passage

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Koichiro Honda             Osaka Prefecture Osaka City Yodogawa-ku Nishinakajima 5-13-9               Oiles Industry Co., Ltd. Construction Machinery Company             Osaka Sales Department (72) Inventor Kenichi Iruchijima             1118 Deiwa, Ritto-cho, Kurita-gun, Shiga Prefecture Oil             S Industry Co., Ltd. Shiga Plant (72) Inventor Yuzo Maejima             1118 Deiwa, Ritto-cho, Kurita-gun, Shiga Prefecture Oil             S Industry Co., Ltd. Shiga Plant F term (reference) 2E001 DB02 DD18 FA32 HA11 NA05                       NC02 NC05 ND11 QA02                 2E036 JA06 JC01 LA07 LB05 NA07

Claims (19)

[Claims] 1. A casing comprising three or more openings, a flap rotatably arranged in the casing so that each opening can be opened and closed by rotation, and a rotating means for rotating the flap. Vent direction control device. 2. The ventilation direction control device according to claim 1, wherein each of the flaps can close each opening. 3. The ventilation direction control device according to claim 1, wherein the flap is adapted to simultaneously close at least two openings together. 4. The flap has an arc surface, and the casing has a shape corresponding to the arc surface of the flap and has at least a pair of arc surfaces adjacent to each other, and between the pair of arc surfaces. The ventilation direction control device according to any one of claims 1 to 3, wherein one opening is arranged. 5. The ventilation direction control device according to claim 4, wherein the casing has a seal member at the center of the arc surface of which the arc surface of the flap slidably contacts. 6. The casing comprises: a first casing portion having one arc surface, a second casing portion having the other arc surface, and a second casing portion which cooperates with the first and second casing portions to form another casing. A third casing portion having a substantially flat surface that forms two openings of the pair, and a pair of other seal members provided at the central portion of the substantially flat surface and abutted by flap portions at each end of the arc surface. The ventilation direction control device according to claim 4 or 5, further comprising: 7. A hollow layer provided on a building wall, a lower inner passageway defined by a lower body of the lower portion of the hollow layer and communicating with the inside of the building, and a lower body defined by the lower body and outside the building. A lower outer passage communicating with the upper layer of the hollow layer and communicating with the inside of the building, and an upper outer passage defined by the upper body and communicating with the outside of the building. It is arranged in the lower body of the building equipped with, and controls the communication between the hollow layer and the lower inner passage, the communication between the hollow layer and the lower outer passage, and the lower inner passage and the lower outer passage. The casing is provided with an opening that communicates with the hollow layer, the lower inner passage, and the lower outer passage, and is rotatably arranged in the casing so that each opening can be opened and closed by rotation. Are A ventilation direction control device comprising a flap and rotating means for rotating the flap. 8. A hollow layer provided on a building wall, a lower inner passage defined by a lower body below the hollow layer and communicating with the inside of the building, and a lower body defined by the lower body and outside the building. A lower outer passage communicating with the upper layer of the hollow layer and communicating with the inside of the building, and an upper outer passage defined by the upper body and communicating with the outside of the building. It is arranged in the upper body of a building equipped with, and controls the communication between the hollow layer and the upper inner passage, the communication between the hollow layer and the upper outer passage, and the upper inner passage and the upper outer passage. The casing is provided with openings for communicating with the hollow layer, the upper inner passage and the upper outer passage, and is rotatably arranged in the casing so that each opening can be opened and closed by rotation. Are A ventilation direction control device comprising a flap and rotating means for rotating the flap. 9. The lower inner passage opens and communicates with a room in the building, the lower outer passage opens and communicates with outside air outside the building, and the upper inner passage includes an air conditioner and a heat exchanger. The ventilation direction control device according to claim 7 or 8, wherein the ventilation direction control device is in communication with a exchanger or a blower, and the upper outer passage is open and communicates with the outside air outside the building. 10. The ventilation direction control device according to claim 7, wherein the hollow layer is formed of a space between double-paned windows installed in a window of a building wall. 11. The ventilation direction control device according to claim 10, wherein each shoji of the double window shoji comprises a glass shoji. 12. The ventilation direction control device according to claim 10, wherein the lower body is a lower frame body arranged in a lower part of the window, and the upper body is an upper frame body arranged in an upper part of the window. . 13. The ventilation direction control device according to claim 7, wherein the hollow layer comprises a space between double walls of a building wall. 14. The ventilation direction control device according to claim 13, wherein the lower body comprises a lower wall disposed below the double wall, and the upper body comprises an upper wall disposed above the double wall. . 15. The ventilation direction control device according to claim 7, wherein each of the flaps can close each opening. 16. The flap has an arc surface, and the casing has a shape corresponding to the arc surface of the flap and has at least a pair of arc surfaces adjacent to each other, and between the pair of arc surfaces. The opening is arranged in
16. The ventilation direction control device according to claim 15. 17. The ventilation direction control device according to claim 16, wherein the casing has a seal member at the center of the arc surface of which the arc surface of the flap slidably contacts. 18. A casing includes a first casing portion having one arc surface, a second casing portion having the other arc surface, and a second casing portion that cooperates with the first and second casing portions to create another casing. A third casing portion having a substantially flat surface that forms two openings of the pair, and a pair of other seal members provided at the central portion of the substantially flat surface and abutted by flap portions at each end of the arc surface. The ventilation direction control device according to claim 16 or 17, further comprising: 19. A building comprising at least one ventilation direction control device according to any one of claims 7 to 18.