JPH1114131A - Air supply / exhaust port - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an air intake and exhaust port to be attached easily to a duct or a wall face, by equipping an air intake and exhaust port with a main body which has an opening on indoor side and an opening on outdoor side and forms a ventilation duct between these opening on indoor side and opening on outdoor side, and attaching a duct connection member to join a duct capably of opening and closing into the opening on outdoor side of that main body. SOLUTION: An air intake and exhaust port 1 is provided with a main body 1a which has an opening 1k on indoor side and an opening 1m on duct connection side, and forms an air duct, connecting these opening 1k on indoor side and opening 1m on duct connection side, and a grill 2 capable of mounting and removal from inside of the door is attached to the opening 1k on indoor side of the main body 1a. Moreover, a duct connection member to join a duct is attached to the opening 1m on duct connection side of the main body 1a. Hereby, easy work execution and attachment to the duct or a wall face can be made, and also the downsizing of packing or the adjustment of wind quantity become easy, and also at the time of having adjusted the quantity of wind with a quantity-of-wind adjusting damper 6, the direction of flow does not change, and it can be made into an equal wind flow.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a structure of an air supply / exhaust port for ventilation.

[0002]

2. Description of the Related Art A conventional air supply / exhaust port for ventilation is shown in FIGS.
There was one shown in No. 4. FIG. 14 is a sectional view of FIG. In the figure, a main body 101 is formed integrally with a grill portion 101a, an air passage portion 101b, and a duct connection portion 101c that open to the indoor side. The grill portion 101a is formed by a flange portion 101d and a concave portion 101e. In the recess 101e, a fixing bracket 103 for fixing the main body 101 to the wall 102 and a mounting screw 104 for attaching the same are provided to face each other. The duct connection part 101c is the air path part 1
01b. A duct is inserted into this duct connection part 101c, and a tape is wound around and fixed. Before connecting the duct, the main body 101 is inserted into the wall surface 102 and fixed by the following method.

As a method of fixing the main body 101 to a ceiling or a wall surface, as shown in FIG.
Is a mounting plate 104 and a holding plate 10 provided with a female screw on a flat plate.
5, the main body 101 is inserted into the mounting hole 102a of the wall surface 102 with the fixing bracket 103 standing upright on the surface of the concave portion 101e, and then the mounting screws 10
By turning 4, the fixing bracket 103 is opened, and the wall surface 102 is sandwiched and fixed with the flange portion 101d.

[0004] In addition, in order to adjust the air volume, a rotating plate 106 provided on a screw portion 106a at the center of the grill portion 101a is manually turned to raise and lower an air volume adjusting damper 107 housed inside the main body, thereby forming a recess 101e. The aperture ratio of the air path is adjusted by changing the size of the gap with the air volume adjustment damper 107.

[0005]

In the conventional air supply / exhaust port configured as described above, since the method of connecting the duct connecting portion 101c and the duct is fixed by tape, it takes a long time for the operation. In addition, the duct connecting portion 101c needs to have a certain length to connect the duct, and the duct connecting portion 101c and the air passage portion 101b are orthogonal and integrated, so that the shape of the main body 101 becomes large. , Packing becomes large during transportation.

[0006] Further, after the fixing bracket 103 is opened by its own weight, it is pressed against the wall surface 102 by the pressing plate 105. However, as shown in the left part of FIG. When the mounting screw 104 is turned while it does not open, it is fixed on the opposite side by the holding plate 105,
There is a problem that the main body 101 cannot be securely fixed. Further, a fixing bracket 103, a mounting screw 104, and a holding plate 105 are required as components for mounting the main body 101, and there is a problem that the number of components is large.

Further, when the air volume is adjusted by the air volume adjusting damper 107, there is a problem that the flow of air from the grill 101a changes. In addition, when the air volume was adjusted by rotating the rotary plate, it was not possible to confirm how much the air volume was adjusted, and it was difficult to adjust the air volume with the air volume adjustment damper 107 because there was no indication of the adjustment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and can be easily installed on a duct or a wall surface, and can be downsized in a package, and can easily adjust an air flow rate. It is an object of the present invention to obtain a supply / exhaust port in which the flow direction of a wind does not change even when the flow rate is adjusted and the flow is uniform.

[0009]

The air supply / exhaust port of the present invention has an indoor opening and an outdoor opening, and a main body forming a ventilation air passage therebetween, and a duct detachably attached to the outdoor opening of the main body. A duct connection member that can be connected is provided.

[0010] The duct connecting member may be divided into two parts.

Further, a hinge portion thinner than the thickness of the duct connection member is provided on one side of the divided duct connection member to connect the two divided duct connection members, and the other side is connected to the two divided duct connection members. A hooking means for engaging and fixing the duct connection member is provided.

Further, a screw-shaped groove in which the screw-shaped convex portion of the duct fits is provided in the duct fixing portion of the duct connecting member.

Further, the distal end of the fitting portion fitted to the outdoor opening of the main body of the duct connecting member has a claw that can be hooked to the back of the outdoor opening of the main body.

A body having an indoor opening and an outdoor opening, and having a ventilation passage formed therebetween and a flange on the indoor opening side, is attached to an outer surface of the main body, to a wall surface, a ceiling, or the like. A fixing means which can be fixed from the indoor side by sandwiching a wall surface, a ceiling or the like between the flange surface and the fixing surface; a fixing member for pressing the fixing means on the wall surface; a fastening means for fastening the fixing member; And a guide portion that regulates the linear movement when the fixing bracket is tightened.

[0015] Further, in a main body having an indoor side opening and an outdoor side opening, a ventilating air path is formed therebetween, and the air path from the indoor side opening and the air path from the outdoor side opening are orthogonal to each other. An air volume adjustment damper is provided on the inside to open and close the air path by sliding at right angles to the air path from the outdoor side.

Further, a flat surface of a rib is provided in the main body so as to be perpendicular to the air passage from the outdoor opening, and an opening is provided in the air volume adjusting damper in parallel with the longitudinal surface of the rib, and a spring is provided in this opening. Through which the air volume adjustment damper is pressed against the rib.

The opening serves as a guide when the air volume adjusting damper slides.

An aperture ratio display is provided on the inner surface of the main body so that the aperture ratio can be determined based on the position of the air volume adjustment damper.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment. 1 to 1 show an embodiment of the present invention.
2 will be described. FIG. 1 is an external perspective view showing an embodiment of the present invention. FIG. 2 is a side sectional view of FIG. FIG. 3 is an exploded view of the main body and the duct connection portion. As shown in the drawing, the air supply / exhaust port 1 has an indoor side opening 1k and a duct connection side opening 1m, and communicates between them to form a main body 1 that forms an air passage.
a, a grill 2 attached to the indoor side opening 1k of the main body 1a and detachable from the room, and a duct connecting member 3 for joining a duct to the duct connecting side opening 1m of the main body 1a. Main body fixing means 25 for fixing to a wall surface is provided.

The main body fixing means 25 is composed of ribs 9a and 9b, a fixing metal 4, and a mounting screw 5 for attaching the fixing metal 4 to the main body 1a. Further, inside the main body 1a, as shown in FIG. 2, an air volume adjusting damper 6 for adjusting the opening area of the air path to adjust the air volume, and an air volume adjusting damper 6 for moving the air volume adjusting damper 6 to adjust the opening ratio. A spring 7 pressed against and fixed to the main body 1a so as to be able to stop at an arbitrary position;
An air volume adjusting function by the spring fixing screw 8 is configured.

The main body 1a has a first cylindrical portion 1b constituting an air passage.
And a second cylindrical portion 1c having a larger diameter than the first cylindrical portion 1b for positioning the first cylindrical portion 1b with the wall mounting hole on the indoor side.
The second cylindrical portion 1c is provided with a flange portion 1d that comes into contact with a wall surface. A connection port 1e for connecting the duct connection member 3 is provided on the duct connection side of the first cylindrical portion 1b opposite to the second cylindrical portion 1c at a right angle to the air passage from the indoor side. The connection port 1e has a straight cylindrical shape at the outer diameter portion, and has a tapered shape at the inner diameter portion where the outside diameter is large and the inside diameter toward the body 1a is small. The taper is the same as that of the fitting portion of the duct connection member 3 described later. Body 1 of small diameter part of taper
A step 1n having an end surface of a predetermined width is formed inside a, so that the claw portion 14 of the duct connection member 3 is hooked.

As for the side surface shape of the main body 1a on the duct connection side, a flat portion 1f is formed on the connection port 1e side of the duct. A flat portion is similarly formed inside the main body 1a. The flat portion 1f is provided with a convex portion 1g for preventing the end of the spring 7 from being caught and preventing rotation, and a rib 1p for reinforcement is provided from the convex portion 1g to the end surface from the flange portion 1d. Further, a plurality of main body fixing means 25 are provided so as to face the first cylindrical portion 1b and the second cylindrical portion 1c of the main body 1a in a state parallel to the plane of the flat portion 1f. Body fixing means 2
As described above, reference numeral 5 denotes the fixing bracket 4, the mounting screw 5 for tightening the fixing bracket 4, and the rib 9a for restricting the movement from the turning operation to the vertical linear operation by tightening the fixing bracket 4 and the mounting screw 5. And ribs 9b.

The ribs 9a, 9b are arranged side by side from the end face of the second cylindrical portion 1c to the first cylindrical portion 1b. The tip provided on the first cylindrical portion 1b of the rib 9a has an inclined portion 10
Is provided. The inclined portion 10 is provided at a predetermined angle so as to be closer to the second cylindrical portion 1c as the distance from the first cylindrical portion 1b increases. This angle is determined by fixing bracket 4 and mounting screw 5
At the time of tightening, the end of the fixing bracket 4 is pulled by the mounting screw 5 while being swung away from the first cylindrical portion 1b by the tightening force, and can be linearly moved to the flange portion 1d. The interval between the ribs 9a and 9b is slightly larger than the width of the support portion 4b of the fixture 4, and the mounting portion 1h of the mounting screw 5 is provided on the flange portion 1d between them. The flange portion 1d has a flat wall surface formed at right angles to the second cylindrical portion 1c, and a peripheral portion 1i is formed to have a predetermined width from the flat surface toward the indoor side. Flange 1d
Is provided with a plurality of recesses 1j. The recess 1j fixes the grill 2 and is formed on the wall side surface.

The grill 2 has a peripheral portion 2a, an opening 2b,
A surface portion 2c formed by a gentle curve connecting the peripheral portion 2a and the opening 2b, and a grid 2d provided in the opening 2b
It is constituted by. A trapezoidal claw portion 2e is provided on two opposing surfaces inside the peripheral portion 2a, and the grill 2 can be fixed by fitting the flange portion 1d of the main body 1a with the concave portion 1j. Has become.

Next, the duct connecting member 3 will be described with reference to FIGS. 3, 4, and 5. FIG. The duct connecting member 3 is composed of a duct fixing part 12 for connecting the duct and an insertion part 13 inserted into and connected to the main body 1a, and the duct fixing part 12 is composed of a cover part 12a and a screw part 15 for screwing the duct. 3a and 3b on the center line of the cylinder
Is divided into two. The divided portions 3a and 3b are connected to each other by providing a connecting portion 16 with a thin wall on the outside of one of the divided surfaces. At this connecting portion 16, one rotates relative to the other. Also, when 3a and 3b are combined on the other divided surface,
A plurality of claws 17 and a meshing portion 18 with which the claws 17 mesh are provided so as to be able to be closely connected. Since the connecting portions 3a and 3b are connected at the connecting portion 16, they can be handled as one component, and the handling is easy, and one of them is not lost.

The insertion portion 13 of the duct connection member 3 is formed in a tapered shape, and the taper matches the inner diameter taper of the connection port 1e of the main body 1a. The insertion portion 13 is divided by a plurality of grooves and has a spring function. A claw portion 14 is provided at the distal end of the divided narrow portion, and when it is inserted into the connection port 1e of the main body 1a, it is caught by a step 1n at the back of the connection port 1e and serves as a stopper. When removing the duct connection member 3 from the connection port 1e, the duct connection member 3 can be removed by releasing the claw portion 14 to the middle side from the opening side of the room with a special tool. The screw portion 15 provided in the duct fixing portion 12 has an internal shape matching a male screw-shaped convex portion formed on the outer shape of the duct. FIG. 5 shows a view from the insertion part 13 side of FIG.

The duct connecting member 3 thus configured is reversibly deformable from the cylindrical shape shown in FIG. 3 to the divided shapes shown in FIGS. For this reason, when connecting the duct to the duct connecting member 3, a method of fixing the duct while screwing the duct from the cover portion 12 a side of the cylindrical duct connecting member 3 into the duct fixing portion 12, or connecting the divided duct as shown in FIG. A method is possible in which the duct is sandwiched and connected by fitting a screw-shaped convex portion of the duct to the threaded portion 15 of the duct fixing portion 12 of the member 3a or 3b and covering the other divided portion.

An example of attachment to the wall 20 will be described with reference to FIGS. FIG. 6 shows that the air supply / exhaust port 1 has the wall mounting hole 19.
The wall 20 is sandwiched and fixed between the fixture 4 and the flange 1d. Further, the duct 21 is fixed to the duct connecting member 3 by the screw portion 15.

FIG. 8 shows a miracle of movement of the fixture 4. FIG.
FIG. 9 is a side view of FIG. By turning the mounting screw 5,
The fixing bracket 4 descends. At the time of lowering, the fixture 4 is simultaneously rotated by the inclined portion 10 provided on the rib 9 a, and when the supporting portion 4 b comes into contact with the rib 9 b on the opposite side, the rotation is finished and the fixing metal 4 is linearly lowered until the wall 20 is pressed. . Thereby, the main body 1a can be easily and reliably fixed to the wall 20 having an arbitrary thickness. Further, even if the thickness of the wall 20 changes or varies, it is possible to cope with it.

As shown in FIG. 10, the fixing bracket 4 is formed by bending a plate made of a stainless steel plate or an iron plate subjected to surface treatment such as painting or plating, and passes the mounting screw 5 between the female screw portion 4a and the ribs 9a and 9b. And a projection 4c for pressing down a wall surface and a tensioning portion 4d for connecting the supporting portion 4b for positioning when rotating.

FIG. 11 is a perspective view showing the structure of the air volume adjusting damper 6 provided in the air supply / exhaust port main body 1a from the indoor opening 1k. FIG. 12 is a front view from the indoor side opening 1k. An air flow adjusting damper 6 for adjusting the size of the opening of the duct connection member 3 serving as an air passage is slidably provided on the back side of the flat portion 1f inside the main body 1a so as to be slidably perpendicular to the axis of the duct connection side opening 1m. It is provided. As shown in FIG. 12, ribs 11 are provided on the inside of the main body 1a on both sides from the second cylindrical portion 1c to the upper portion of the duct connection side opening 1m with a constant width as shown in FIG. The air volume adjusting damper 6 has a flat plate shape and a groove 22 provided in parallel with the moving direction. The side of the duct connecting member 3 forms an R portion 6a in accordance with the internal shape of the main body 1a. Bent part 2 bent at right angle
3. A hole 6c is provided between the grooves 22 on the bending side. The opening and closing of the damper 6 for adjusting the air volume is performed with the bent portion 23 or the hole 6c.

On both sides between the R portion 6a and the bent portion 23, claws 6 for restricting the movement in the left and right direction with respect to the opening / closing operation of the damper.
b is cut and raised and slides on the side surface of the rib 11. As shown in FIG. 12, the spring 7 is bent in the shape of a letter "C", and its open end is formed with a hook 7a bent on the surface of the air volume adjustment damper 6 in such a manner. The distance between the hooks 7a is slightly larger than the width of the groove 22 of the air volume adjusting damper 6, and is configured to press the air volume adjusting damper 6 against the rib 11 when attached to the air volume adjusting damper 6. The spring 7 is fixed to the main body 1a by a spring fixing screw 8. Further, a plurality of marks 24 indicating the opening ratio of the air path according to the position of the air volume adjustment damper 6 are provided inside the flat portion 1f of the main body 1a, and the marks 24 are formed by several linear grooves or convex portions. It is provided in the form of a bar graph, and when the air volume adjusting damper 6 is most opened, the opening ratio is set to 100%, the opening ratio is shortest, and when the air volume adjusting damper 6 is fully closed, the opening ratio is set to 20%. . The number of display intervals is determined as necessary. The relationship between the air volume adjustment damper 6 and the mark 24 is a value that the aperture ratio indicates when the bent portion 23 of the air volume adjustment damper 6 matches the tip of the mark 24.

The air volume adjusting damper 6 has a groove 22 formed by a spring 7.
And is slidably supported by being pressed against a rib 11 inside the main body 1a. By passing the spring 7 through the groove 22, it also serves as a guide for the air volume adjustment damper 6, so that a smooth movement can be obtained and fluttering can be suppressed. Spring 7
Is fixed to the main body 1a by a spring fixing screw 8. The bending portion 23 can be stopped by holding it at an arbitrary position by hand and the opening ratio of the air path can be easily changed and adjusted. The groove 22 not only functions as a power point for applying the force of the spring 7 to the air volume adjustment damper 6, but also plays a role in positioning the air volume adjustment damper 6 in the opening and closing direction.

The air volume adjusting damper 6 is formed of a flat plate,
Since the holding is suppressed by the thin spring 7, a uniform wind flow can be obtained without disturbing the resistance on the air path and the wind flow. Further, since the air volume adjusting damper 6 is provided inside the flat portion 1f of the main body 1a so as to be orthogonal to the axis of the opening 1m on the duct connection side, the main body 1a can be made small. In addition, a plurality of marks 24, such as grooves, for displaying the aperture ratio are provided on the main body 1a, and the value of the aperture ratio is displayed under the mark, so that the aperture ratio can be easily and accurately adjusted so that it is easy to see. In the present embodiment, as the display method of the mark 24, the position is displayed at the tip of a bar graph-shaped line, another step-shaped broken line, a plurality of dot displays, or a scale display in a single bar shape. A similar function can be obtained by the method of performing the above. Also, if this is displayed in different colors, it becomes more visible.

[0035]

The present invention having the above-mentioned structure has the following effects. By providing a detachable duct connection member on the main body of the air supply / exhaust port, the connection between the air supply / exhaust port and the duct can be easily performed, and the installation work is facilitated.

Further, since the duct connecting member is divided into two parts, the duct can be connected without being screwed when the duct is attached, so that the duct can be easily attached to the duct.

Further, since the two divided ducts are connected by a thin connecting portion, they can be handled as one part, and the handling is easy, and one of the ducts is easy to work without being lost during construction.

Further, when the duct is connected to the air supply / exhaust port, the duct connecting member is provided with a groove in accordance with the threaded convex portion of the duct, so that the duct connecting member and the duct can be reliably connected.
The removal in the longitudinal direction can be prevented. In addition, reliable fixing and airtightness can be maintained without using a tape or the like.

Further, since the claw which can be hooked on the main body of the air supply / exhaust port is provided at the tip of the duct connecting member, it can be fixed simply by fitting the duct connecting member and the main body.

A fixing means is provided on the outer surface of the main body of the air supply / exhaust port, the fixing means being capable of being fixed from the indoor side. The fixing means is provided with a fixing member, a fastening means, and a guide portion for regulating the fixing member to move linearly. With this configuration, firm fixing can be easily performed even when the thickness of the mounting wall surface changes.

Further, since an air flow control damper that slides at right angles to the air path from the outdoor opening is provided, the air supply / exhaust port does not become large, and the air is blown out of the grill even when the air flow is adjusted by the air flow control damper. Wind is obtained uniformly.

Also, since an opening is provided in the air volume adjusting damper and the opening is pressed against the main body through a spring, the structure is simple and compact, and the air volume adjusting damper can be stopped at an arbitrary position and adjusted. Can be easily done.

Further, since the display for indicating the opening ratio depending on the position of the air volume adjusting damper is provided at the indoor side opening of the air supply / exhaust port body, the air volume adjusting operation can be easily performed.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a supply / exhaust port of the present invention.

FIG. 2 is a sectional view of a supply / exhaust port of the present invention.

FIG. 3 is a divided view of a main body of a supply / exhaust port and a duct connection port according to the present invention.

FIG. 4 is an exploded view of the duct connection port of the present invention.

FIG. 5 is an exploded view of the duct connection port of the present invention viewed from the insertion direction.

FIG. 6 is a cross-sectional view showing a state where the air supply / exhaust port of the present invention is attached.

FIG. 7 is a cross-sectional view of the side of the air supply / exhaust port of the present invention in an attached state.

FIG. 8 is a perspective view showing a movement locus of the fixing bracket of the present invention.

FIG. 9 is a side view showing the movement locus of the fixing bracket of the present invention.

FIG. 10 is a detailed view of the fixing bracket of the present invention.

FIG. 11 is a perspective view of an air volume adjusting damper according to the present invention.

FIG. 12 is a side view of an air volume adjusting damper according to the present invention.

FIG. 13 is a perspective view of a conventional air supply / exhaust port.

FIG. 14 is a side view of a conventional air supply / exhaust port.

[Explanation of symbols]

1a main body, 3 duct connection port, 4 fixing bracket,
5 mounting screws, 6 air volume adjustment damper, 7 spring,
9a rib, 9b rib, 10 inclined portion, 11
Rib, 12 duct fixing part, 13 insertion part, 14
Claw part, 15 screw part, 16 connection part, 22
Grooves, 23 bends, 24 marks.

Claims (10)

[Claims] 1. A main body having an indoor side opening and an outdoor side opening and forming a ventilation air passage therebetween, and a duct connecting member capable of detachably connecting a duct to the outdoor side opening of the main body is provided. And supply and exhaust ports. 2. The air supply / exhaust port according to claim 1, wherein the duct connection member has a two-part shape. 3. A duct connecting member which is divided into two parts, a hinge portion having a thickness smaller than the thickness of the duct connecting member is provided on one side to connect the two divided duct connecting members, and the other side has two divided duct connecting members. 3. An air supply / exhaust port according to claim 2, further comprising a hooking means for engaging and fixing the duct connection member. 4. The air supply / exhaust port according to claim 1, wherein a screw-like groove is provided in the duct fixing portion of the duct connection member so that the screw-like protrusion of the duct fits. 5. The duct connection member according to claim 1, wherein the distal end of the fitting portion that fits into the outdoor opening of the main body has a claw that can be hooked to the inside of the outdoor opening of the main body. The air supply / exhaust port according to claim 4. 6. A main body having an indoor side opening and an outdoor side opening, forming a ventilation passage therebetween and having a flange at the indoor side opening. When attached to the, provided with a fixing means that can be fixed from the indoor side, the operation of fixing the wall or ceiling between the flange surface and the like, the fixing means for pressing the fixing means on the wall, the fastening means for tightening the fixing metal, A supply / exhaust port, comprising: a guide portion that regulates a linear movement when the fixture is fastened by the fastening means. 7. A main body having an indoor side opening and an outdoor side opening, a ventilation path formed therebetween, and an air path from the indoor side opening and an air path from the outdoor side opening being orthogonal to each other. An air supply / exhaust port provided with an air volume adjustment damper which slides at right angles to an air path from an outdoor opening to open and close the air path. 8. A rib flat surface is provided in the main body so as to be perpendicular to an air passage from an outdoor opening, and the air volume adjusting damper is provided with an opening parallel to a longitudinal surface of the rib. 9. The air supply / exhaust port according to claim 8, wherein the air volume adjusting damper is pressed against the rib by a spring. 9. The air supply / exhaust port according to claim 9, wherein the opening of the air volume adjusting damper guides when the air volume adjusting damper slides. 10. The air supply / exhaust port according to claim 8, wherein an indication of an opening ratio is provided on the inner surface of the main body so that the opening ratio can be determined based on the position of the air volume adjustment damper.