JP2001201167A - Air supply and exhaust port - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air supply and exhaust port, where opening and closing action of each damper by wind is sure, and which can prevent penetration of rainwater into a house and which is so arranged as not to cause noise by combining an air supply and exhaust louver, where many sheets of louver boards are arranged and a plurality of louver boards which is arranged on its indoor side. SOLUTION: A plurality of dampers 9, which are free of opening and closing, rotating around an axis perpendicular to the longitudinal direction of louver boards 3, and are energized in open attitude by springs 8, are juxtaposed in the longitudinal direction of the louver boards 3, in the positions not in contact with the louver boards 3 besides being on the indoor side of an air supply and an exhaust louver A where a plurality of louver boards 3 are arranged so as to make wind velocity fixed or over, whereby the damper 9 rotates, resisting the energizing force by the spring 8, and it automatically closes the supply and exhaust port.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a countermeasure for preventing rainwater from entering a supply / exhaust port opened in an outer wall of a room equipped with an air conditioner, an electric room, a machine room of an elevator, a room requiring ventilation, and the like.

[0002]

2. Description of the Related Art For example, when the size of an air supply / exhaust port opening on an outer wall of a building is limited, such as an air supply / exhaust port in a wall-through type air conditioner, if the size of the opening / closing port is limited, a rattle is formed at the opening end. In addition, since the effective area of the ventilation path is reduced, it is often configured to directly take in the outside air and exhaust the indoor air by using a duct without rags.

[0003] In addition, if the duct is free of gulls, rainwater is likely to be blown in strong winds.
As can be seen in Japanese Patent Publication No. 36, the duct is vertically open at the lower end side and open at the upper end side indoors, and inside the vertical duct, a damper is provided which can be opened and closed and urged to an open position, There has been proposed an air supply / exhaust port in which a damper performs a closing operation against a biasing force when a wind speed becomes equal to or higher than a predetermined value, thereby automatically closing a ventilation path. However, since this type uses a vertical duct, it cannot be applied to a large air supply / exhaust port provided on an outer wall such as an electric room or a machine room of an elevator.

A large air supply / exhaust port (eg, 1 meter square) provided on an outer wall of an electric room, a machine room of an elevator, or the like is biased to an open position in a ventilation path formed between adjacent gusset plates. When the valve body is provided and the wind speed becomes equal to or higher than a certain value, a waterproof gallery that the valve body blocks the ventilation path against the urging force may be used.

[0005] Japanese Utility Model Publication No. 7-29165 shows an example of a waterproof gallery. This waterproof gull is formed with a dovetail groove along the longitudinal direction of the gull plate at the rear end side in the ventilation direction of the gull plate, while the valve body is made of an elastic material such as rubber or soft synthetic resin, From a main plate portion of a width that can close the main plate portion, a narrow base portion folded forward from the rear edge of the main plate portion, and a ridge portion protruding from a surface opposite to a surface of the base portion facing the main plate portion. The ridge portion is fitted into the dovetail groove, and the main plate portion swings around a position behind the base portion.

In the above-mentioned waterproof gallery, since the valve body is made of an elastic material such as rubber or soft synthetic resin, a spring for urging the valve body to the open position is unnecessary, the number of members is small, and the structure is simple. On the other hand, on the other hand, the valve vibrates due to the wind and repeatedly comes into contact with and separates from the rattle plate, so that noise is generated.

[0007]

SUMMARY OF THE INVENTION In view of the above situation, the present invention provides a combination of a supply / exhaust gully provided with a plurality of gully plates and a damper provided on the indoor side thereof. The opening and closing operation of the damper due to the wind is reliable, and it is possible to reliably prevent rainwater from entering the interior,
Moreover, the present invention provides a supply / exhaust port in which noise is not generated.

[0008]

The technical measures taken by the present invention to solve the above-mentioned problems are as follows. That is, the supply / exhaust port according to the first aspect of the present invention is provided at a position perpendicular to the longitudinal direction of the gusset plate at a position on the indoor side of the supply / exhaust gallery where a plurality of gusset plates are provided and not in contact with the gusset plate. A damper that can be opened and closed and rotates around the axis and is biased to an open position by a spring is provided. When the wind speed exceeds a certain level, the damper rotates against the biasing force of the spring, and the air supply / exhaust port is opened. It is characterized in that it is configured to be closed.

In the case where the size of the air supply / exhaust port is small, only one damper may be provided. However, when the size of the air supply / exhaust port is large, the damper may be provided with a damper plate. It is desirable to arrange a plurality of them in the longitudinal direction.

[0010] According to the above configuration, since the damper is at a position where it does not come into contact with the rag plate, even if the damper vibrates near the balance between the urging force of the damper by the spring and the wind speed, the contact with the rag plate is made. No noise is generated due to repeated separation.

In particular, according to the configuration of the second aspect, at the indoor side of the supply / exhaust gallery and at a position where the gallery is not in contact with the gallery, an openable and closable spring that rotates about an axis perpendicular to the longitudinal direction of the gallery is provided. Since a plurality of dampers urged to the open position are arranged side by side in the longitudinal direction of the gusset plate, the rotation trajectory of each damper can be small, and although the damper is provided on the indoor side of the supply / exhaust gusset. In addition, the depth dimension of the air supply / exhaust port is not so large.

[0012] Still further, since the rotation axis of each damper is perpendicular to the longitudinal direction of the gusset plate, the wind flowing through the ventilation path between the adjacent gusset plates hits all the dampers almost uniformly, and the damper due to the wind The opening and closing operation of the rainwater can be reliably performed, and rainwater can be reliably prevented from entering the indoor side. That is, if the axis of rotation of each damper is parallel to the longitudinal direction of the gusset plate, any of the dampers becomes a shade of the gusset plate, so that the wind flowing through the ventilation path between the adjacent gusset plates is shaded by the gusset plate. It will hit the damper that does not enter and hits the damper that is the shadow of the rag plate weakly, and the opening and closing operation of the damper will not be stable, but if the rotation axis of each damper is perpendicular to the longitudinal direction of the rag plate, all Of the damper will face in a substantially uniform state with respect to the ventilation path between the rattling plates,
Such inconvenience can be avoided.

The air supply / exhaust port according to the invention described in claim 3 is
On the indoor side of the supply / exhaust gully where the horizontal gully boards are arranged in vertical stages between the vertical frames of the gully frame, a frame formed in a square shape with a top plate, a bottom plate with a drainage gradient, and both side plates Open and close freely rotatable around the vertical axis perpendicular to the longitudinal direction of the slicing plate with the center in the width direction as a fulcrum at a position between the top plate and the bottom plate of the frame body and not in contact with the slicing plate A plurality of vertical dampers urged in an open position by a spring are arranged side by side in the longitudinal direction of the rattle plate, and bent portions bent in opposite directions are provided at both ends in the width direction of each damper, and the wind speed is increased. Is greater than or equal to a certain value, the damper rotates against the urging force of the spring and closes the air supply / exhaust port, while the bent portion at the end of the damper in the closed position is not provided. Support with watertight sealant attached to the side And it is characterized in that is provided over the upper plate and the bottom plate of the frame body.

According to the above configuration, the following advantages are provided in addition to the above advantages according to the first and second aspects of the invention.
That is, a column having a vertical axis of rotation of the damper and a column to which a watertight sealing material is attached at a position in contact with a surface on the side where the bent portion is not provided at an end of the damper in the closed position is formed by a frame body. Since it is provided over the top plate and the bottom plate, the watertight sealing material attached to the column and the column does not become an obstacle to drainage action, and the water droplets attached to the damper can be stopped by the column and the watertight sealing material It will flow down smoothly and rainwater will not stagnate behind the damper.

Further, since the watertight sealing material is provided not on the damper side but on the column side provided over the upper plate and the bottom plate of the frame body, a pair of bent portions formed at both ends of the damper and bent in opposite directions to each other is provided. The force generation function (the function of causing the damper to generate a rotational force around the axis) is not hindered by the watertight sealing material, and the opening and closing operation of the damper by the wind is reliably performed. As a damper, as described in claim 4, a narrow vertical plate portion diametrically extended from the cylindrical shaft portion at the center of rotation, and bent at right angles in opposite directions from the ends of both vertical plate portions. To stabilize the opening / closing operation, it is desirable that the main plate portion and the bent portions bent at right angles in opposite directions from the ends of both main plate portions are desirable.

When the damper is closed by the hanging piece of the upper plate and the rising piece of the bottom plate, one surface at the upper and lower ends of the damper (opposite the bent portion). Surface), a drain hole is formed in the rising piece, and a baffle plate is provided on the indoor side of the drain hole to divert the flow of wind blown from the drain hole. In addition, the watertightness of the damper in the closed position can be improved, and water droplets and the like attached to the damper can be drained smoothly.

Further, the frame and the damper are made of a refractory material such as a painted steel plate or a stainless steel plate, and the damper is closed at an appropriate position of the frame against the urging force. If a damper forced closing device having a second spring for causing the second spring and a thermal fuse for maintaining the second spring in an inactive state is provided, when the thermal fuse blows due to heat at the time of fire, the second spring is opened. Works, and the damper is forcibly closed. As with the fire prevention damper, it has a function of automatically preventing the suction or blowing of flame or hot air to prevent the spread of fire.

[0018]

1 and 2 show a supply / exhaust port according to the present invention. The air supply / exhaust port includes an air supply / exhaust gallery A and a damper portion B provided continuously on the indoor side.
The supply / exhaust gallery A is formed by arranging horizontal gallery plates 3 between upper and lower vertical frames 2 in a rectangular gallery frame 1 in a plurality of upper and lower stages (15 stages in the illustrated example). Ventilation passages a are formed between the rattle plates 3.

The damper section B is configured as follows. That is, a frame body 7 formed in a rectangular shape by an upper plate 4, a bottom plate 5 having a drainage gradient, and left and right side plates 6 is continuously provided on the indoor side of the rattle frame 1. At a position between the upper plate 4 and the bottom plate 5 of the frame body 7 and not in contact with the rag plate 3, an opening / closing unit that rotates about a vertical axis perpendicular to the longitudinal direction of the gusset plate 3 with the center in the width direction as a fulcrum. In the longitudinal direction (horizontal direction) of the glass plate 3, a plurality of vertical dampers 9, which are freely and urged to the open position by the spring 8 (this is a smaller number than the number of the glass plate 3, There are three.) Each damper 9 has narrow vertical plates 9d, 9d extending diametrically from a cylindrical shaft portion 9c at the center of rotation into which a rotation center shaft 10 to be described later is inserted, and tips of both vertical plates 9d, 9d. From the main plates 9e, 9 bent at right angles in opposite directions
e, and bent portions 9a, 9b bent at right angles in opposite directions from the ends of both main plate portions 9e, 9e, and the main plate portions 9e, 9e of the dampers 9 in the closed posture are parallel to each other. It is configured to be.

The spring 8 is interposed between a rotation center axis 10 of a damper 9 protruding above the upper plate 4 and an arm 11 connected to the upper end of each damper 9.
A stopper 12 is provided on the lower surface of the cover 12 so as to abut on the damper 9 and maintain the damper 9 in the open position.

At both ends of each damper 9 in the width direction, bent portions 9a and 9b bent in opposite directions are provided, and when the wind speed exceeds a certain value, a couple generating function of the bent portions 9a and 9b is performed. That is, each damper 9 rotates against the urging force of the spring 8 to close the air supply / exhaust port due to the difference in wind resistance between the side where the bent portions 9a and 9b are present and the side where the bent portions 9a and 9b are not present. It is composed.

The bottom plate 5 and the left and right side plates 6 of the frame 7
Is extended rearward (indoor side) from the rotation locus of the damper 9, and a water return portion 5 a is formed at the rear end of the bottom plate 5 and continues to the left and right side plates 6. In addition, as shown in FIGS. 3 to 5, the frame 7 is provided with columns 13 over the upper plate 4 and the bottom plate 5 at positions facing the ends of the dampers 9 in the closed posture, respectively. Each pillar 13 is provided with a water-tight sealing material 14 such as rubber, which is in contact with a surface of the end of the damper 9 in the closed position where the bent portions 9a and 9b are not provided.

Further, a hanging piece 15 provided at a position on a line connecting the damper shaft core of the upper plate 4 and a rising piece 16 provided at a position on a line connecting the damper shaft core of the bottom plate 5 respectively have a closed posture. A watertight sealing material 17 made of rubber or the like, which is in contact with the upper and lower ends of a certain damper 9 on the side where the bent portions 9a and 9b are not provided, is attached. The rising piece 16 has a plurality of drain holes 19 (in the illustrated example, one between the bearing 18 that supports the lower end of the damper 9 and the column 13 adjacent thereto). On the indoor side of 19, a baffle plate 20 for diverting the flow of wind blown from the drain hole 19 to the left and right is provided.

Reference numeral 21 shown in FIG. 4 is an irregular-shaped sealing material for filling a gap between the bearing 18 and the rising piece 16 and a gap between the rising piece 16 and the support 13. Both the gull frame 1 and the gull plate 3 are extruded aluminum products, but may be made of steel or stainless steel. As the material of the frame body B and the damper 9, aluminum, painted steel, stainless steel plate or the like is adopted. Material is adopted.

According to the above-described structure, the gully plate 3 is located indoors of the supply / exhaust gully A and at a position where the gully plate 3 does not contact the gully plate 3.
A plurality of dampers 9 which can be opened and closed freely and rotate about an axis perpendicular to the longitudinal direction of the gusset and urged in an open position by a spring 8 are arranged in parallel in the longitudinal direction of the gusset plate 3, so that the rotation trajectory of each damper is Despite the provision of the damper 9 on the indoor side of the supply / exhaust gallery A, the depth dimension of the supply / exhaust port is not so large, and the rotation axis of each damper 9 is the longitudinal axis of the gallery plate 3. Since it is perpendicular to the direction, the wind flowing through the ventilation passage a between the adjacent slamming plates 3 hits all the dampers 9 substantially uniformly, and the opening and closing operation of the dampers 9 by the wind is reliable, and the rainwater to the indoor side Can be reliably prevented, and since each damper 9 is located at a position not in contact with the rag plate 3, even if the damper 9 vibrates, noise due to repeated contact with and separation from the rag plate 3 does not occur.

The rotation axis of the damper 9 is vertical,
The bent portion 9 at the end of the damper 9 in the closed position
Since the column 13 to which the sealing member 14 for watertightness is attached is provided over the upper plate 4 and the bottom plate 5 of the frame 7 at a position in contact with the surface on which the a and 9b are not provided, the column 13 and the column 13 are provided. The attached watertight sealing material 14 does not become an obstacle to the drainage action, and water droplets adhering to the damper 9 cause the pillar 1
The flow is smoothly stopped without being stopped by the sealing material 3 and the watertight sealing material 14, and the rainwater does not stagnate on the rear side of the damper 9.

Further, since the watertight sealing member 14 is provided not on the damper 9 side but on the column 13 provided over the upper plate 4 and the bottom plate 5 of the frame 7, the watertight sealing member 14 is formed in opposite directions formed at both ends of the damper 9. The couple generating function (function of generating a rotational force around the axis in the damper 9) by the bent portions 9a and 9b is not hindered by the watertight sealing material 14,
The opening and closing operation of the damper 9 by the wind is surely performed.

FIG. 6 shows another embodiment, in which the frame 7 and the damper 9 are made of a refractory material such as a painted steel plate or a stainless steel plate. Spring 22 for closing operation against
The present invention is characterized in that a damper forced closing device C provided with a thermal fuse 23 for maintaining the second spring 22 in a non-operating state.

Various specific structures can be adopted as the damper forced closing device C. In the illustrated example, the structure is as follows. That is, the damper 9 is located above the upper plate 4.
A movable plate 24 rotatably supported on the rotation center axis 10 is provided. An arc-shaped elongated hole 25 centered on the rotation center axis 10 is formed in the movable plate 24, and the movable plate 24 is connected to the upper end of the damper 9. At the tip of the provided arm 11, a pin 26 inserted so as to be movable within the range of the elongated hole 25 is provided, and a spring 8 composed of a tension spring is provided between the pin 26 and the rotation center shaft 10. The damper 9 is biased to the open position. A second spring 22 composed of a tension spring having a higher spring force than the spring 8 is interposed between the movable plate 24 and the upper plate 4, while a temperature fuse is provided between the movable plate 24 and the upper plate 4. 23 is provided to maintain the movable plate 24 in one direction against the second spring 22.

Therefore, when the movable plate 24 is fixed by the thermal fuse 23, the pin 26 can be moved within the range of the elongated hole 25, and the opening and closing operation of the damper 9 can be performed. When the thermal fuse 23 is blown by the operation, the movable plate 24 is rotated by the force of the second spring 22,
Pushes the pin 26 at one end, and the damper 9 is forcibly closed.

[0031]

The air supply / exhaust port according to the present invention has the above-described structure, and the opening and closing operation of each damper by wind can be surely prevented, rainwater can be reliably prevented from entering the indoor space, and noise is not generated. is there.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing an example of a supply / exhaust port.

FIG. 2 is a cross-sectional plan view of a supply / exhaust port.

FIG. 3 is a partially cutaway perspective view of a main part.

FIG. 4 is a perspective view of a main part.

FIG. 5 is a cross-sectional plan view of a main part.

FIG. 6 is a perspective view of a main part showing another embodiment.

[Explanation of symbols]

A: supply / exhaust gutter, 1: gutter frame, 2: vertical frame, 3: gutter plate, 4: upper plate, 5: bottom plate, 6: both side plates, 7: frame, 8
... spring, 9 ... damper.

Claims (6)

[Claims] 1. An air supply / exhaust gully provided with a plurality of gully plates, which is rotatable around an axis perpendicular to the longitudinal direction of the gully plate at a position indoors and not in contact with the gully plate. By providing a damper urged to the open position by a spring, the damper rotates against the urging force of the spring and closes the air supply / exhaust port when the wind speed exceeds a certain level. A characteristic air supply and exhaust port. 2. The air supply / exhaust port according to claim 1, wherein a plurality of the dampers are arranged in a row in a longitudinal direction of the gusset plate. 3. An indoor side of a supply / exhaust gully in which a horizontal gully plate is arranged in a plurality of upper and lower stages between vertical frames of the gully frame,
A frame formed in a square shape with an upper plate, a bottom plate with a drainage gradient, and both side plates is continuously provided, and a central portion in the width direction is provided between the upper plate and the bottom plate of the frame body and at a position not in contact with the slicing plate. A plurality of vertical dampers that can be opened and closed and rotate around a vertical axis perpendicular to the longitudinal direction of the slicing plate with the fulcrum as a fulcrum and urged to open by a spring are arranged in parallel in the longitudinal direction of the slicing plate. At both ends in the width direction, bent parts are provided that are bent in opposite directions, so that when the wind speed exceeds a certain level, the damper rotates against the biasing force of the spring and closes the supply and exhaust ports On the other hand, a column to which a watertight sealing material is attached at a position in contact with a surface of the end of the damper in the closed position where the bent portion is not provided is provided over the upper plate and the bottom plate of the frame body. A supply / exhaust port characterized by having 4. A damper comprising: a narrow vertical plate portion extending diametrically from a cylindrical shaft portion of a center of rotation; and a main plate portion bent at right angles in opposite directions from ends of both vertical plate portions. The air supply / exhaust port according to any one of claims 1 to 3, wherein the air supply / exhaust port according to any one of claims 1 to 3, wherein the air supply / exhaust port comprises a bent portion which is bent at right angles in opposite directions from the ends of the two main plate portions. 5. A vertical piece provided at a position on a line connecting the damper shaft center of the upper plate and a rising piece provided at a position on a line connecting the damper shaft center of the bottom plate, respectively. Attach a watertight sealing material in contact with the surface on the side where the bent portion is not provided at both ends, form a drain hole in the rising piece, and on the indoor side of the drain hole, the wind blown from the drain hole is 5. The air supply / exhaust port according to claim 3, further comprising a baffle plate for diverting the flow. 6. A frame and a damper are made of a refractory material, and a second spring for closing the damper in opposition to the urging force in an appropriate position of the frame, and a second spring in an inactive state. The air supply / exhaust port according to any one of claims 2 to 5, further comprising a damper forced closing device having a temperature fuse to be maintained.