JPS592373Y2 - Supply and exhaust pipe mounting device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting device for a supply/exhaust pipe used in an outdoor supply/exhaust type heater.

Conventionally, this type of supply/exhaust pipe is generally constructed by drilling a hole into a mounting wall such as a house wall into which a sleeve can be inserted, inserting the splittable sleeve from both the inside and outside of the mounting wall, and screwing the sleeves together inside the hole. It was fixed by tightening the sleeve, and was further attached to one end of the sleeve by fixing a flange provided on the outer periphery of one end of the air supply and exhaust pipe with screws or the like.

However, with this conventional method, the air supply and exhaust pipe is supported only by the flange on the outer periphery of one end, and the outdoor end tends to wobble, and if the mounting wall is thin, the sleeve is much wider than the mounting wall. It has disadvantages such as protrusion that is unsightly and difficult to fix.

The present invention was developed in view of the above points, and even if the thickness of the mounting wall to which the supply/exhaust pipe is attached varies, the sleeve can be easily installed and can be smoothly installed without protruding to the outside. The purpose is to prevent rainwater from entering the holes in the mounting wall.

In order to achieve the above object, the present invention supports an air supply/exhaust tube that penetrates a hole in a mounting wall by a pair of support members screwed onto the air supply/exhaust tube from both the inside and outside of the mounting wall. One end of a retractable sleeve inserted between the inner peripheral surface of the hole in the mounting wall and the air supply/exhaust tube is attached to the holder, a retaining part is provided at the other end of the sleeve, and the retaining part is attached to the outer support member. The flexible seal member is removably engaged with a retaining portion provided on the flexible seal member.

Embodiments of the present invention will be described below based on the drawings.

1 is a hole drilled in a mounting wall 2 such as a wall of a house, 3 is the hole 1
It is an air supply/exhaust pipe that penetrates through the duct and protrudes outdoors, and has a threaded part 5 formed continuously from the duct connecting part 4 formed at the base end on the indoor side to the approximately central part, and the threaded part 5 is formed continuously to the approximate center part. A large number of exhaust holes 6, 6, . . . and air supply holes 7, 7, .

Reference numeral 8 denotes a support member on the indoor side, which consists of a screw tube 9 that is screwed onto the screw portion 5 of the supply/exhaust tube 3, and a mounting plate 11 to which the collar piece 9' of the screw tube 9 is fixed with screws 10. By attaching the plate 11 to the mounting wall 2 through the backing 12 with screws 13, the air supply and exhaust pipe 3 is supported on the indoor side.

Reference numeral 14 denotes an outdoor support part village, which consists of a nut I-15 screwed onto the screw part 5 of the supply/exhaust pipe 3 and a tightening plate 16 pressed by this nut 15. Supported outdoors.

The supply and exhaust pipe 3 is supported on the inside and outside of the mounting wall 2 by both supporting members 8 and 14.

Reference numeral 17 is a flexible sealing member such as rubber that is interposed between the clamping plate 16 and the two mounting walls, and has an opening larger than the diameter of the air supply and exhaust pipe 3. On the periphery, there is an annular groove 19 that engages with a protruding engagement portion 22 of a sleeve 21, which will be described later.
There is even an iU.

Further, a concentric solid protrusion 20 is formed on the inner surface of the sea/L member 17, and is pressed by the tightening plate 16 and is closely attached to the dot surface of the mounting wall 2, thereby preventing the intrusion of rainwater and the like.

Reference numeral 21 denotes a sleeve inserted between the inner peripheral surface of the hole 1 of the mounting wall 2 and the air supply/exhaust pipe 3. This sleeve 21 has one end expanded and the other end reduced so that the outer diameter of the sleeve 21 is gradually reduced. It is configured to be expandable and retractable by slidingly inserting a plurality of cylindrical elements 21a, 22b, 22C into each other, and these cylindrical elements 21a, 21b, 21
A flange is formed at the tip of the element 21a with the largest diameter among C, and this flange is fixed simultaneously with the screws 10 when the threaded tube 9 of the indoor support member 6 and the mounting plate 11 are fixed. .

A protruding engaging portion 22 is formed at the tip end of the element 21C having the smallest diameter, and this is connected to the sealing member 1.
It is removably engaged in the annular groove 19 of No.7.

Therefore, the support member 8 on the indoor side is screwed in advance to the screw portion 5 of the supply/exhaust pipe 3 adjacent to the connection portion 4 of the duct 1, and the sleeve 21 attached to the support member 8 is extended. ,
In this state, the air supply/exhaust pipe 3 is inserted into the hole 1 from the indoor side together with the snowball 21, and the seal member 17 is engaged with the retaining portion 22 of the sleeve 21 that projects outdoors.

After that, attach the outdoor support member 14 to the supply/exhaust pipe 3 in the order of the tightening plate 16 and the nut 15, screw the nut 15 onto the threaded portion 5, and tighten the sleeve 21 at the same time as the supply/exhaust pipe 3. The installation has also been completed.

At this time, the supply/exhaust pipe 3 and the sleeve 21 are fixed to the mounting wall 2 by the supporting members 8 and 14 without wobbling even under strong winds.

Furthermore, since the hole 1 in the mounting wall 2 is closed by a sealing member 17 that engages with the retaining portion 22 of the sleeve 21, rainwater cannot enter into the hole 1 due to the sealing member 17. can be reliably prevented.

Historically, the sleeve 21, which is fitted between the inner circumferential surface of the hole 1 of the mounting wall 2 and the circumferential surface of the air supply/exhaust pipe 3, has a plurality of sleeve elements 21a, 21b, and 21C fitted together. Since it is constructed so that it can expand and contract freely, its expansion and contraction can be made extremely large, and adjustments during expansion and contraction can be made without touching, and even if the thickness of the mounting wall 2 is different, it can be easily and It can be easily used without protruding into the outdoors, and can be folded into a small size and stored when packed or not in use.

By using the air supply and exhaust pipe mounting device according to the reference plan as shown in Figure 1-L, the following effects can be achieved.

■ Since the air supply and exhaust volume is supported by a pair of support members from the inner side of the mounting wall, it can be installed stably without wobbling even under strong winds.

(2) Since the support member is screwed onto the outer periphery of the supply/exhaust tube, the protruding length of the supply/exhaust tube on the indoor and outdoor sides can be adjusted.

■ Since the sleeve is configured to be expandable, it can be easily adjusted during expansion and contraction, making it easy to install even if the thickness of the mounting wall is different, and it can be installed outdoors without protruding too much. Furthermore, when packing or not in use, the sleeve can be folded into a small size for storage and packaging.

- Since the hole in the mounting wall can be closed with the sealing member that engages the engagement portion of the sleeve, the sealing member can reliably prevent rainwater etc. from entering the hole and protect the mounting wall.

■ Since the sleeve is supported using the support member that supports the supply and exhaust pipes, the parts can be used for multiple purposes, reducing the number of parts.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the mounting device of the present invention with an air supply and exhaust pipe attached, and FIG. 2 is a cross-sectional view of the same in an exploded state. 2... Mounting wall, 3... Supply/exhaust pipe, 21... Sleeve, 8° 14... Supporting member, 17... Seal member.

Claims (1)

[Scope of utility model registration request] (1) A supply/exhaust pipe inserted through a hole in the mounting wall is supported by a pair of support members screwed onto the supply/exhaust pipe from the inside and outside of the mounting wall, and one support member is attached to the hole in the mounting wall. Attach one end of a retractable sleeve interposed between the circumferential surface and the air supply and exhaust pipe,
A retaining portion 1 is provided at the other end of the sleeve, and the engaging portion is removably engaged with a retaining portion provided on a flexible seal member interposed between the outer support member and the mounting wall. Installation device for supply and exhaust pipes. 1.2) The supply/exhaust pipe mounting device described in the preceding item, wherein the sleeve is constructed by slidably inserting a plurality of cylindrical elements having different diameters.