JPS584025Y2 - Hot air heater ventilation pipe fixing fittings - Google Patents

Description

[Detailed description of the invention] This invention relates to a fixing fitting for fixing the supply and exhaust pipes of a forced air supply and exhaust hot air heater using kerosene or various gases to a wall surface, etc. The purpose of the present invention is to provide an air supply/exhaust pipe fixing fitting that can be commonly used for both.

This is a so-called forced air supply/exhaust hot air heater that forcibly supplies the air necessary for combustion from outside, forcibly exhausts the exhaust gas after combustion outside, and blows warm air heated by a convection fan indoors. Generally speaking, it is possible to adjust the calorific value of a combustion engine, and some models are manufactured in which the maximum calorific value can be set to a fairly large value. Since the temperature rise of the pipe becomes a problem, it is necessary to fix the exhaust pipe at a distance from the wall surface according to the maximum heat output to avoid thermal hazards, and the fixing fittings are designed for each model accordingly. , which had to be manufactured, leading to an increase in costs.

The present invention has been made in view of the above-mentioned points, and provides an air supply/exhaust pipe fixing fitting that allows two distances from a wall surface to be selected using one set of fixing fittings.

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

FIG. 1 is a perspective view of a supply/exhaust pipe fixing fitting showing an embodiment of the present invention, and FIGS. 2 and 3 are top views when the supply/exhaust pipe is installed.

In the figure, reference numeral 1 denotes a support fitting with a U-shaped cross section that is fixed to a wall surface 2 with screws (not shown), etc., and a holding fitting described below is screwed into the center of the front surface 3 of this support fitting 1. There are screw holes for this purpose.

Reference numeral 4 denotes a holding fitting that is detachably fixed to the front surface of the supporting fitting 1, and ventilation pipes 5 are provided on both left and right sides of the holding fitting 4.
, 6 is formed.

Moreover, this crimp fixing part C is formed to protrude unevenly on one side with respect to the attachment surface of the support metal fitting 1 and the holding metal fitting 4,
In addition, the holding fitting 4 can be attached to the supporting fitting by turning it upside down.

That is, as shown in FIGS. 2 and 3, by attaching the holding fitting 4 to the supporting fitting 1 with its front and back turned upside down,
The ventilation pipes 5 and 6 can be fixed at symmetrical positions across the mounting surface.

The holding metal fitting 4 includes a first metal fitting a having an arc-shaped portion protruding unevenly on one side so that the right and left sides bulge out in a dome shape, and a substantially horizontal plate that is joined to the back surface of the first metal fitting a. It consists of a second metal fitting that has an impressive shape.

A method of using the fixture having the above configuration will be explained.

First, when fixing the ventilation pipes 5 and 6 of a combustion machine that generates a large amount of heat, as shown in FIG. The holding fitting 4 and the supporting fitting 1 are fixed together using a fixing fitting (not shown) such as a screw that reaches the fitting 1.

In this way, the ventilation pipes 5 and 6 are fixed to the crimp-fixing portion C of the holding fitting 4, and the supporting fitting 1 is held so as to protrude forward from the surface, and the Ll is connected from the wall surface 2. Distance will be maintained.

Next, when fixing the ventilation pipes 5 and 6 of a combustion machine with a small calorific value, as shown in FIG. By fixing the vent pipes 5 and 6 to the crimping and fixing part C of the holding fitting 4, the vent pipes 5 and 6 are held so as to protrude inwardly from the attachment surface of the supporting fitting 1 and the holding fitting 4. , L from the wall
A distance of 2 is ensured.

In other words, by simply attaching the holding fitting 4 to the supporting fitting 1 by turning it upside down, the ventilation pipes 5 and 6 can be arbitrarily fixed in symmetrical positions by sandwiching the mounting surfaces of both fittings 1 and 4. can.

In other words, when used in a heater that generates a large amount of heat, the distance from the vent pipe to the wall should be long (Ll), and when used in a heater that generates a small amount of heat, the distance from the vent pipe to the wall should be shortened or <L2. In addition, the distance to the wall can be set to two types simply by flipping the holding fittings upside down.

In the above embodiment, the case where the air supply pipe 5 and the exhaust pipe 6 are installed separately has been explained, but it is also possible to install an air supply and exhaust pipe in which the air supply pipe 5 and the exhaust pipe 6 are integrated into a double pipe structure. It goes without saying that the same effect can be obtained by the present invention even in cases where the present invention is configured as described above. The ventilation pipes can be arbitrarily fixed in symmetrical positions across the mounting surface.

In other words, if the supporting metal fitting is fixed to the wall surface, the distance to the wall surface can be set to two types, long and short, simply by turning the holding metal fitting upside down.

Therefore, if the distance between the ventilation pipe and the wall surface must be long, such as when fixing the ventilation pipe of a heater that generates a large amount of heat, the outer surface of the holding fitting should be fixed to the front surface of the support fitting, for example. When fixing the ventilation pipe of a heater with a small calorific value, there is no need to provide a large distance between the ventilation pipe and the wall and the ventilation pipe can be placed close to the wall to reduce dead space. By fixing the inner surface of the holding fitting to the front surface of the supporting fitting, this single fixing fitting can be used as a completely common part for heaters with different calorific values, providing a highly versatile fixing fitting. be able to.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an air supply/exhaust pipe fixing fitting showing an embodiment of the present invention, and Figs. 2 and 3 are top views showing how to use the air supply/exhaust pipe installed. Metal fittings, 5 and 6 are ventilation pipes, and C is a crimp fixing part.

Claims (1)

[Scope of Claim for Utility Model Registration] A device for fixing a ventilation pipe at a predetermined distance from a wall surface, which includes a support fitting fixed to the wall surface and a crimp fixing part of the ventilation pipe on the left and right sides that is removably fixed to the support fitting. In the ventilation pipe fixing fitting that is separated from the holding fitting, the holding fitting has the crimp fixing portion protruding unevenly on one side with respect to the attachment surface with the supporting fitting, and the holding fitting is connected to the supporting fitting. In contrast, this vent pipe fixing fitting for a warm air heater is characterized in that it can be installed by turning it inside out.