JPH0525143U - Combustor air supply / exhaust system - Google Patents

Abstract

(57) [Abstract] [Purpose] An inclined packing 15 is attached to the contact portion of the outdoor air supply / exhaust section 2 with the wall surface 3, and the inclined packing 15 is attached to the outdoor cylinder 10 of the outdoor air supply / exhaust section 2.
In the case of tightening and fixing with the flange 8 provided at the tip, the mounting of the inclined packing 15 is simplified and the sealing effect is improved. [Structure] The tilted packing 15 is made of rubber having a sealing property, and a pressing plate 16 made of a material having a small frictional resistance is attached to a position facing the flange 8 at the tip of the supply cylinder 7, and the tilted packing 15 is fixed to the pressing plate 16. It is fastened to the wall 3 by the flange 8 and fixed. [Effect] Since the pressing plate 16 has a small frictional resistance, the cylinder 7
The flange 8 smoothly slides on the surface of the pressing plate 16 to sufficiently tighten and fix the inclined packing 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an air supply / exhaust device used for an outdoor air supply / exhaust type combustor or the like.

[0002]

[Prior Art]

 Conventionally, in this type of air supply / exhaust device, for example, as shown in FIG. 3, an inclined packing 17 is interposed at a contact portion of the outdoor air supply / exhaust portion 2 with the wall surface 3, and an inclined flange 18 is covered on the outer side thereof. From the outside, the outer peripheral portion of the flange 8 provided on the air supply cylinder 7 of the outdoor air supply / exhaust unit 2 was used to seal rainwater. (For example, Japanese Patent Laid-Open No. 1-310222 and Japanese Utility Model Laid-Open No. 21447/1990)

[0003]

[Problems to be solved by the device]

 In the above structure, since the inclined packing 18 is used to attach the inclined packing 17, it is very troublesome to determine the upper and lower sides of the packing. In addition, if the inclined packing was not used, the sealing surface was not flat and there was a problem with its sealing performance.

[0004]

[Means for Solving the Problems]

 In this invention, the inclined packing is made of a material such as rubber having a sealing property, and a holding plate with a small friction resistance is attached at a position facing the outer periphery of the flange provided on the air supply cylinder of the outdoor air supply / exhaust section of the inclined packing. It is a thing.

[0005]

[Action]

 When the outdoor air supply / exhaust section is screwed into the indoor air supply / exhaust section, the flange installed at the tip of the air supply cylinder of the outdoor air supply / exhaust section rotates while smoothly sliding on the surface of the holding plate, and tightens the inclined flange sufficiently and securely. Is.

[0006]

【Example】

 An embodiment according to the present invention will be described below with reference to the drawings.

FIG. 1 is a structural view of the present invention, and FIG. 2 is a detailed view of an outdoor air supply / exhaust unit of the present invention.

In the figure, 1 is an indoor air supply / exhaust section, 2 is an outdoor air supply / exhaust section, and 3 is a wall facing the outside air in which an air supply / exhaust device is installed. Reference numeral 4 is an outdoor exhaust pipe, 5 and 6 are guards made of a cosmetic body and a wire attached to the outer periphery and the tip of the exhaust pipe 4, and 7 is provided outside the exhaust pipe 4 and has a screw formed in the outdoor supply. The supply cylinder 8 of the exhaust unit 2 is a flange provided at the tip of the supply cylinder 7. The flange 8 and the decorative body 5 are configured to have a gap L and are concentric with each other. Reference numeral 9 denotes an exhaust pipe of the indoor air supply / exhaust unit 1, which has an exhaust port 10 connected to the combustor on the indoor side, and the other is inserted into the outer periphery of the exhaust pipe 4 of the outdoor air supply / exhaust unit 2. Reference numeral 11 denotes a supply cylinder which is attached to the outside of the exhaust pipe 9 and has a screw formed at the tip thereof so as to be engaged with the screw of the supply cylinder 7, and 12 is attached to the supply cylinder 11 and is connected to a combustor. , 13 are mounting flanges having an inclined surface inserted into the outer periphery of the supply cylinder 11.

Reference numeral 14 is a flange attached to the wall 3 on the indoor side, and 15 is an inclined packing made of rubber or the like that seals the wall surface of the wall 3 on the outdoor side and prevents intrusion of rainwater. The packing 15 is attached to the wall surface. On the other hand, it has an inclined surface and is configured to have a downward slope to the outdoor side when the air supply / exhaust system is attached. Further, a pressing plate 16 made of a material having a small frictional resistance such as a metal plate and having slidability is provided on the entire surface or a part of the surface of the inclined packing 15 facing the flange 14.

To install the air supply / exhaust device of the present invention, firstly, a proper hole is made in the wall 3, and the flange 14 is attached to the wall from the indoor side to the hole, and the rear indoor air supply / exhaust portion 1 is attached to the mounting flange 13. Fixed by. Next, insert the inclined packing 15 with the holding plate 16 attached to the outer circumference of the air supply cylinder 7 of the outdoor air supply / exhaust section 2, and screw the respective air supply tubes 7 and 11 to the indoor air supply / exhaust section 1 from the outdoor side. Tighten by rotating so that they fit together. At this time, the inclined packing 15 is attached so that the entire air supply / exhaust device inclines downward. Since the frictional resistance of the surface of the holding plate 16 is small at the time of tightening, the flange 8 smoothly slides on the surface of the holding plate 16 and rotates, so that the tightening force of the inclined packing 15 is sufficiently and surely provided.

[0011]

[Effect of the device]

 As described above, according to the configuration of the present invention, by providing a simple component configuration of the fixed portion to the wall surface, it is possible to provide the air supply / exhaust device with reliable attachment to the wall surface and improved sealability. It is possible.

[Brief description of drawings]

FIG. 1 is a structural sectional view of the present invention.

FIG. 2 is a detailed cross-sectional view of the outdoor air supply / exhaust unit of the present invention.

FIG. 3 is a detailed cross-sectional view of a conventional outdoor air supply / exhaust unit.

[Explanation of symbols]

 1 Indoor air supply / exhaust part 2 Outdoor air supply / exhaust part 8 Flange 15 Inclined packing 16 Holding plate

Claims (1)

[Scope of utility model registration request] 1. An outdoor air supply / exhaust part (2) and an indoor air supply / exhaust part (1) which are clamped by a wall (3) so that the outdoor air supply / exhaust part (2) is tilted downward, are fixed outdoors. Inserting an inclined packing (15) having a sealing property on the outer periphery of the air supply cylinder (7) of the air supply / exhaust part (2), and providing a flange (8) at the tip of the air supply cylinder (7), the packing (15) Attach the holding plate (16) with low frictional resistance to the position facing the flange (8) of, and tighten the inclined packing (15) to the wall (3) with the flange (8) through the holding plate (16) and fix it. Combustor air supply and exhaust system.