JP2004317122A - Air intake and exhaust opening - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of a conventional air intake and exhaust opening which cannot be securely fixed because a fixing metal fitting is fixed while being insufficiently opened when mounting the air intake and exhaust opening in the case where a mounting face is thick. <P>SOLUTION: A fixing means capable of operation to sandwich a wall face and ceiling and the like with a flange face from an indoor side when attached to the ceiling and the like is provided on an outside face of an air intake and exhaust opening having an indoor side opening and an outside opening and forming a ventilation passage between them. The fixing means is structured with the fixing metal fitting and a clamping means for clamping the fixing metal fitting and a guiding part for moving apart on a straight line with the fixing metal fitting rotating when the fixing metal fitting is clumped. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a structure of an air supply / exhaust port for ventilation.

  Conventional air supply / exhaust ports for ventilation include those shown in FIGS. FIG. 14 is a sectional view of FIG. In the figure, a main body 101 is integrally formed with a grill portion 101a, an air passage portion 101b, and a duct connection portion 101c which open to the indoor side. The grill portion 101a is formed by a flange portion 101d and a concave portion 101e. A fixing bracket 103 for fixing the main body 101 to the wall 102 and a mounting screw 104 for attaching the fixing bracket 103 are provided to face the concave portion 101e. The duct connection part 101c is orthogonal to the air path part 101b. A duct is inserted into the duct connection portion 101c, and the tape is wrapped around the duct and fixed. Before connecting the duct, the main body 101 is inserted into the wall surface 102 and fixed by the following method.

  As shown in FIG. 14, as a method of fixing the main body 101 to a ceiling or a wall surface, a fixing bracket 103 obtained by bending a plate material is attached to the main body 101 by an attaching screw 104 and a holding plate 105 provided with a female screw on a flat plate. After the main body 101 is inserted into the mounting hole 102a of the wall surface 102 with the main body 101 standing against the surface of the wall 101e, the fixing bracket 103 is opened by turning the mounting screw 104, and the wall surface 102 is sandwiched and fixed with the flange portion 101d.

  The air volume is adjusted by manually turning a rotary plate 106 provided on a screw portion 106a at the center of the grill portion 101a, thereby raising and lowering an air volume adjustment damper 107 housed inside the main body, thereby forming a recess 101e and an air volume adjustment damper. The aperture ratio of the air passage is adjusted by changing the size of the gap with the air passage 107.

  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 time to work. Further, since 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, the shape of the main body 101 becomes large. , Packing becomes large during transportation.

  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, but the fixing bracket 103 is not sufficiently opened when the wall surface is thick as shown on the left side of FIG. When the mounting screw 104 is turned inside, it is fixed on the opposite side by the holding plate 105, and there is a problem that the main body 101 cannot be securely fixed. In addition, 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 portion 101a changes. Further, when the air volume was adjusted by rotating the rotary plate, it was difficult 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.

  The present invention has been made in order to solve the above-mentioned problems, and can be easily installed on a duct or a wall surface, can be reduced in size of a package, and can easily adjust the air volume, and can adjust the air volume by an air volume adjustment damper. It is an object of the present invention to obtain a supply / exhaust port in which the direction of the flow of the wind does not change and the flow of the wind is uniform.

  The air supply / exhaust port of the present invention has an indoor side opening and an outdoor side opening, and forms a ventilation air passage therebetween and has a flange on the indoor opening side. When it is attached to the flange surface, a fixing means that can be fixed from the indoor side with a wall surface, a ceiling, etc. sandwiched between the flange surface and the fixing surface is provided, a fixing bracket for pressing the fixing means on the wall surface, a fastening means for tightening the fixing bracket, When the fastening is fastened by the fastening means, the guide is configured to regulate the distal end of the fastening so as to move in a straight line while turning away from the main body.

  The present invention is configured as described above, and has the following effects. 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, a fixing means, and a guide portion for regulating the fixing metal so as to move linearly by turning the fixing metal are constituted. Thereby, even if the thickness of the mounting wall surface changes, firm fixing can be easily performed.

Embodiment.
An embodiment of the present invention will be described with reference to FIGS. 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 figure, 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 1a which forms an air passage. The main body 1a is provided with a main body fixing means 25 for fixing to a wall surface in a configuration in which a detachable grill 2 and a duct connecting member 3 for joining a duct to a duct connection side opening 1m of the main body 1a are combined. .

  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. As shown in FIG. 2, an air volume adjustment damper 6 for adjusting the opening area of the air path and adjusting the air volume, and an air volume adjustment damper 6 for adjusting the opening ratio by moving the air volume adjustment damper 6 as shown in FIG. A spring 7 which is pressed against and fixed to the main body 1a so as to be able to stop at an arbitrary position, and an air volume adjusting function by a spring fixing screw 8 are configured.

  The main body 1a is provided with a first cylindrical portion 1b forming an air passage, and a second cylindrical portion 1c having a larger diameter than the first cylindrical portion 1b for positioning with a wall mounting hole is provided on the indoor side of the first cylindrical portion 1b. The second cylindrical portion 1c is provided with a flange portion 1d that contacts the 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 in which the outside diameter is large and the inside diameter toward the main body 1a is small. The taper is the same as the taper of the fitting portion of the duct connection member 3 described later. A step 1n having an end surface of a predetermined width is formed inside the main body 1a of the tapered small diameter portion so that the claw portion 14 of the duct connecting member 3 can be caught.

  In the side surface shape of the main body 1a on the duct connection side, a flat portion 1f is formed on the duct connection port 1e side. 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 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 surface of the flat portion 1f. As described above, the main body fixing means 25 restricts the movement from the turning operation to the up-and-down linear operation by tightening the fixing bracket 4, the fixing screw 5 for tightening the fixing bracket 4, and the fixing bracket 4 and the mounting screw 5. It is composed of a rib 9a and a rib 9b.

  The ribs 9a and 9b are juxtaposed to face the first cylindrical portion 1b from the end face of the second cylindrical portion 1c. An inclined portion 10 is provided at a distal end provided on the first cylindrical portion 1b of the rib 9a. 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. When this angle is tightened by the fixing metal 4 and the mounting screw 5, the tip of the fixing metal 4 is pulled by the mounting screw 5 while rotating so that the tip of the fixing metal 4 is separated from the first cylindrical portion 1 b by the tightening force, and can be linearly moved to the flange portion 1 d. It is configured as follows. 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 plane toward the indoor side. A plurality of recesses 1j are provided in a peripheral portion 1i of the flange portion 1d. The recess 1j fixes the grill 2 and is formed on the wall side surface.

  The grill 2 includes 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 lattice 2d provided in the opening 2b. 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 with the concave portion 1j of the flange portion 1d of the main body 1a. Has become.

  Next, the duct connection 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 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. It is cylindrical and divided into two parts 3a and 3b on the center line of the cylinder. The divided portions 3a and 3b are connected to each other by connecting a thin connecting portion 16 on the outside of one of the divided surfaces. One of the connecting portions 16 rotates with respect to the other. The other divided surface is provided with a plurality of claws 17 and a meshing portion 18 with which the claws 17 are engaged so that when the 3a and 3b are brought together, they can 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 on the duct fixing portion 12 has an internal shape that matches 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 from the cover portion 12 a side of the cylindrical duct connecting member 3 while screwing the duct 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. In FIG. 6, the air supply / exhaust port 1 is fixed by sandwiching the wall 20 into the wall mounting hole 19 between the fixing bracket 4 and the flange portion 1d. The duct 21 is fixed to the duct connecting member 3 by the screw portion 15.

  FIG. 8 shows a moving miracle of the fixture 4. FIG. 9 is a side view of FIG. The fixture 4 is lowered by turning the mounting screw 5. At the time of lowering, the fixing bracket 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 ends and the fixing metal 4 is lowered linearly until the wall 20 is pressed. . Thus, 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 between a stainless steel plate or an iron plate subjected to a surface treatment such as painting or plating, and is bent between the female screw 4a and the ribs 9a and 9b. It is composed of a support portion 4b for positioning when rotating, a protruding portion 4c for pressing down a wall surface, and a tension portion 4d for connecting them.

  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 connecting member 3 serving as an air path is slidably provided on the back side of the flat portion 1f inside the main body 1a so as to be slidable so as to be orthogonal to the axis of the duct connecting 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 with a constant width from the second cylindrical portion 1c to the upper part of the center of the opening 1m on the duct connection side. 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, and the opposite side thereof has one end face. A bent portion 23 bent at a right angle is formed. 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, a claw 6b for restricting the movement in the left-right direction with respect to the opening / closing operation of the damper is formed by cutting and raising, 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 the open end of the spring 7 is formed with a hooking portion 7a that is bent so on the surface of the air volume adjusting damper 6. The distance between the hooks 7a is slightly larger than the width of the groove 22 of the air volume adjusting damper 6, and has a structure in which the air volume adjusting damper 6 is pressed 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 for indicating the opening ratio of the air passage depending on the position of the air volume adjusting 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 adjustment 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 is pressed against the rib 11 inside the main body 1a via the groove 22 by the spring 7, and is slidably supported. 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. The spring 7 is fixed to the main body 1a by a spring fixing screw 8. The bend 23 can be stopped and held at any position by moving it 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.

Further, since the air volume adjusting damper 6 is formed of a flat plate and is held by the thin spring 7, a uniform air flow can be obtained without disturbing the resistance and the air flow on the air path.
Further, since the air volume adjustment damper 6 is provided inside the flat portion 1f of the main body 1a so as to be orthogonal to the axis of the duct connection side opening 1m, 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-shaped displays, and a scale display in one bar-shaped. The same function can be obtained by the method of performing the above. If this is displayed in different colors, it will be easier to see.

External perspective view of the supply / exhaust port of the present invention Sectional view of the air supply / exhaust port of the present invention Split view of the main body of the air supply / exhaust port and the duct connection port of the present invention Exploded view of the duct connection port of the present invention Exploded view of the duct connection port of the present invention viewed from the insertion direction Sectional view of the installed state of the air supply / exhaust port of the present invention Sectional view of the side of the installed state of the air supply / exhaust port of the present invention The perspective view which shows the movement locus of the fixing bracket of this invention. The side view which shows the movement locus of the fixture of this invention. Detailed view of the fixing bracket of the present invention The perspective view of the air volume adjustment damper part of the present invention. Side view of the air volume adjustment damper part of the present invention Perspective view of conventional air supply / exhaust port Side view of conventional air supply / exhaust port

Explanation of reference numerals

  1a main body, 3 duct connection port, 4 fixing bracket, 5 mounting screw, 6 air volume adjustment damper, 7 spring, 9a rib, 9b rib, 10 inclined section, 11 rib, 12 duct fixing section, 13 insertion section, 14 claw section , 15 screw part, 16 connecting part, 22 groove, 23 bent part, 24 mark.

Claims (1)

A main body having an indoor opening and an outdoor opening, forming a ventilation passage therebetween and having a flange at the indoor opening, when the main body is attached to a wall surface or a ceiling or the like on the outer surface of the main body, A fixing means is provided from which the operation of fixing the wall surface and the ceiling or the like with the flange surface can be performed from the indoor side, and the fixing means is constituted by a fixing bracket for holding down the wall surface, and a fastening means for fastening the fixing bracket. A supply / exhaust port provided with a guide portion that regulates a tip of the fixing bracket so as to move while moving away from the main body in a straight line when the fixing bracket is tightened.

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