JPS5977185A - Fixture for pipe joint - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a mounting device for mounting a pipe joint installed on a refrigerant pipe or the like in a separate room air conditioner or the like to a pipe fitting body such as a room air conditioner body. .

Conventional structure and its problems In general, to connect the pipe joints of a separate room air conditioner, a steel pipe 2 is brazed to the pipe joint 1, and these two pipes are covered with a heat insulating material 3, as shown in Fig. 1. The connecting pipe 4 is brazed to the steel pipe of the heat exchanger 5, and a part of the connecting pipe 4 is further fixed to the room air conditioner main body side 7 with a fixing fitting 6, and the pipe joint 1 is connected inside the room air conditioner main body or It is known that this can be done externally.

Furthermore, as shown in Fig. 2, the pipe fitting 1, the copper pipe 2, and the heat insulating material 3 are covered with the heat insulating material 3 in the same manner as in Fig. 1, and the connecting pipe 4 is brazed to the steel pipe of the heat exchanger 5, The flange portion 6 of the tube fitting 1 is fixed to a pipe fitting fixing fitting 8 having a hole drilled to match the size of the connecting portion of the pipe fitting 1 using a convex metal fitting 7 formed to match the shape of the flange portion 6, and then Joint fixing bracket 8
It is known that the pipe fitting 1 is attached to the room air conditioner main body 9 and the pipe joint 1 is connected inside the room air conditioner main body.

In order to prevent condensation water from adhering to the pipe joint fixture 8, heat insulating materials 10 are attached to both sides of the pipe joint fixture 8.

However, in such a configuration, in the former configuration,
Although it has the advantage that less space is required when connecting the connecting pipe 4 to the indoor/outdoor unit connecting pipe (hereinafter referred to as the inside/outside connecting pipe), the connection between the pipe joint 1 and the pipe joint on the inside/outside connecting pipe side is advantageous. In this case, two tightening tools such as spanners are required, and if the tightening method is incorrect, the copper pipe 2 may be twisted or
This method has the disadvantage that the pipe joints cannot be tightened sufficiently.

On the other hand, in the latter configuration, only one tightening tool such as a spanner is required, so the tightening condition is stable, and the disadvantages of the configuration shown in FIG. 1 are solved. When connecting, the space required for the piping section is large and the pipe fitting fixing fitting 8 is cooled by the refrigerant passing through the inside of the pipe, so condensation water adheres to the surface of the pipe fitting fixing fitting 8, making it difficult to prevent dew condensation. It has disadvantages that must be taken into account.

OBJECTS OF THE INVENTION The present invention solves the drawbacks of the conventional pipe joint mounting devices described above, and aims to facilitate pipe connection work.

Structure of the Invention In order to achieve this object, the present invention provides a fitting hole in a pipe fitting fixing fitting according to the shape of the pipe fitting, and a notch into which the pipe fitting is inserted in a part of the fitting hole. It was established.

With this configuration, the pipe fitting fixing fitting is used only when connecting the pipe fitting, and can be easily removed thereafter, thereby reducing the number of tools used and the space required for the piping section.

DESCRIPTION OF EMBODIMENTS The present invention will now be described with reference to FIG. 3 of the accompanying drawings showing one embodiment thereof.

In the figure, reference numeral 1 denotes a pipe joint, to which copper pipes 2 are brazed, and each of the copper pipes 2 is covered with a heat insulating material 3. Each of these connecting pipes 4 is brazed to the steel pipe of the heat exchanger 5, and is fixed to a convex metal fitting 8 of the room air conditioner main body 7 with a fixing metal fitting 6 between the pipe joint 1 and the heat exchanger 6. .

Reference numeral 9 denotes a pipe fitting fixing fitting, and the pipe fitting fixing fitting 9 is provided with a cutout portion 11 from one side of its periphery in accordance with the shape of the flange portion 10 of the pipe fitting 1. This notch 11
A fixed wall 12 is provided around the pipe fitting flange portion 10 in accordance with the shape of the pipe joint flange portion 10. The pipe fitting fixing fitting 9 is attached to the room air conditioner main body.
A mounting wall 13 provided on the side of the room air conditioner body is aligned and fixed with screws 14.

In the above configuration, when connecting the internal and external connecting pipes, the notch 11 and the fixed wall 12 provided in the pipe fitting fixing fitting 9 allow
Since the movement of the pipe fitting 1 is suppressed and the flange portion 10 of the pipe fitting 1 is pressed against the fixed wall 12 by a tightening tool such as a spanner, only one tightening tool is required.

At this time, the pipe joint 1 is moved in the connection direction of the copper pipe 2 by the internal and external connecting piping, but this problem can be somewhat resolved by appropriately setting the dimensions of the fixed wall 12.

Next, when the connection work of the internal and external connecting pipes is completed, the screws 1 that secure the pipe joint fixing fitting 9 to the room air conditioner main body 7 are
4, move the pipe fitting fixing fitting 9 along the flange part 10 of the pipe fitting 1 in the direction of the arrow, and remove the fixing wall 12 from the flange part 10.

Then, by tilting the pipe fitting fixture 9 and moving it along the pipe joint 1, the pipe joint fixture 9 can be removed.

As a result, the connecting pipe 4 can freely move toward the pipe fitting 1 from the fixing fitting 6, and the pipe fitting connection portion can be insulated with one insulating material for two pipe fittings, and the pipe fitting fixing fitting 9 Depending on the installation position, the insulation work of the pipe joint connection area may be hindered. Furthermore, by opening the connecting pipe 4 from the pipe fitting fixing fitting 9, it is possible to improve the workability of electrical wiring between the indoor unit and the outdoor unit, for example, or to incorporate a radiator using hot water as a heat medium. In the room air conditioner, it is possible to secure the necessary space for installing hot water piping, and also to secure the installation space for connecting piping parts such as pulp that comes with stiffness.

On the other hand, it can be used with the pipe fitting fixing fitting 9 left open; however, in this case, heat insulating material 15 is attached to both the top and bottom of the pipe fitting fixing fitting 9 to prevent condensation. All you need to do is to use materials of an appropriate shape.

Next, another embodiment of the present invention will be described with reference to FIG.

In the figure, 16 is an L-shaped protrusion provided from the mounting wall 13 of the pipe joint fixing fitting 9 to the room air conditioner main body side, and this L-shaped protrusion 15 can be hooked to a hook 16 provided on the room air conditioner main body 7. By hanging, the pipe joint fixing fitting 9 can be easily attached to and detached from the room air conditioner main body 7. This structure makes it easy to attach and detach the pipe joint fixing fitting 9 from the main body 7. The connection work is still the same as in the previous embodiment.

In each of the above embodiments, the pipe fitting 1 was fixed using the fixing wall 12 provided to match the shape of the pipe fitting 1, but fitting holes were formed by drawing to match the shape of the pipe fitting 1. Good too. In this case, the movement of the pipe fitting 1 is due to the narrowed shape.
The rotational movement is suppressed and the pipe fitting 1 is moved to the narrowed area.
Or it is pressed down and movement is suppressed.

In addition, although the case of a room air conditioner was explained in each of the above-mentioned Examples, it can be implemented similarly to the piping of gas equipment etc., and the object is not limited.

Effects of the Invention As is clear from the above-described embodiments, the pipe joint mounting device of the present invention allows the pipe joint body to be pressed against the fixed wall using one tightening tool when connecting the pipe joint, thereby facilitating the pipe connection work. This has the effect of improving work efficiency.

[Brief explanation of the drawing]

1 and 2 are perspective views of pipe joint mounting devices showing different conventional examples, FIG. 3 is a perspective view of a pipe joint mounting device according to seven embodiments of the present invention, and FIG. 4 is a perspective view of a pipe joint mounting device according to seven embodiments of the present invention. FIG. 7 is an exploded perspective view of a pipe fitting device according to another embodiment. DESCRIPTION OF SYMBOLS 1...Pipe joint, 9...Pipe joint fixing fitting, 11...Notch, 13...Fixing wall. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2, 5 Figure 3

Claims (1)

[Claims] A pipe joint having a rectangular shape or the like is provided at the tip of a pipe through which fluid flows, and a pipe fitting fixing fitting having a fitting hole of the same shape as the pipe joint is provided on a pipe fitting body that supports the pipe,
A fitting device for a pipe joint, wherein a notch into which the pipe joint is inserted is provided in a part of the fitting hole.