JPS5826261Y2 - Connection between pipe and fitting - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a pipe joint for connecting downpipes and drain pipes.

When installing a downspout or drain pipe that protrudes from the exterior wall of a house, it is often damaged by collisions with passenger cars or forklifts, so it is necessary to install a thick part of the downpipe or drainpipe for reinforcement. A provided tube may be used.

At the connection between the pipe and the pipe joint, the thick part of the pipe protruded from the pipe joint, and the other parts were recessed, giving a very poor appearance.

The present invention solves the above-mentioned drawbacks, and its gist is that the cross-sectional outline follows the same circle in each part, the peripheral wall consists of a thick part and a thin part, and an inner surface is formed at the boundary between the thick part and the thin part. A port to be inserted into the protection pipe is provided at the end of the tube with a step formed along the axial direction, and the peripheral wall of the port is composed of a thick part and a thin part, and the wall thickness A step is formed along the axial direction on the outer surface at the boundary between the part and the thin part, a step is provided at the periphery of the base of the inlet, and the height of the step corresponds to the thick part of the inlet. The thickness of the part corresponding to the thin wall part of the tube is the same as that of the thin wall part of the pipe, the thickness of the part corresponding to the thin wall part of the opening is the same as the thickness of the thick wall part of the pipe, and the other end has the same external shape as the pipe. A connection portion between a pipe and a pipe joint into which the opening of the pipe joint is inserted.

An example of the present invention will be described below with reference to the drawings.

As shown in Fig. 1, the pipe B has a cross-sectional outer shape that lies in the same circle at each part, and a peripheral wall consisting of a thick wall portion 7 and a thin wall portion 8, and an axial step is formed on the inner surface at the boundary line between the thick wall portion 7 and the thin wall portion 8. A portion 9 is formed.

As shown in FIG. 1a, the pipe joint A is provided with a port 1 at one end, and the peripheral wall of the port 1 consists of a thick part and a thin part.
Step portions 6, 6 are formed along the axial direction on the outer surface at the boundary between the thick portion and the thin portion.

A stepped portion 2 is provided on the periphery of the base of the opening 1.

The height of the step part 2 is the part 4 corresponding to the thick part of the opening 1 on the periphery.
The thickness is the same as that of the thin wall portion 8 of the tube 1, and the thickness of the portion 3 opposite to the thin wall portion of the opening 1 is the same as the thickness of the thick wall portion 7 of the tube 1.

At the other end of the pipe joint A, there is a socket 5 having the same external shape as the pipe 1.
will be provided.

The pipe B is inserted into the fitting 1 of the pipe fitting A using the large height portion 3 of the stepped portion 2 as a guide, and the stepped portion 2 formed at the boundary between the thick portion 7 and the thin portion 8 of the inner wall surface. When the stepped portions 6, 6 of the inlet 1 of the pipe fitting A are in contact with the portion 9 and are not fixed with adhesive (so-called dry type 1)
However, the system is designed to prevent pipe 1 from turning accidentally.

The end of the tube B comes into contact with the step 2 of the lid opening 1 to prevent the tube B from being inserted too far (see FIG. 2).

A pipe partially provided with a thick wall portion or a normal pipe without a thick wall portion 7 is inserted into the socket 5 of the pipe joint A.

Figure 3 shows an example of rain gutter construction. Pipe B (pipe) with a partially thickened part is installed below the outer wall of the house, so that there is no risk of collision with the outer wall of the house. In the upper part, a normal tube C without a thick wall may be used.

The pipe joint of the present invention has the above-mentioned configuration, so that it is easy to attach a pipe with a thick wall to the lid using the large stepped part as a landmark. The end of the tube will come into contact with the stepped portion and will not be inserted any further, thus avoiding damage to the cap and the tube.

In addition, the step provided on the outer surface of the lid opening of the pipe joint comes into contact with the boundary where the step between the thick wall part and the thin wall part of the pipe is formed, and prevents rotation, even when no adhesive is used. , the thick walled part of the tube is constantly directed outward to provide a breakage prevention effect.

In addition, when the pipe is inserted into the lid opening, the thick part of the pipe and the large stepped part are aligned so that the surfaces of the pipe and pipe joint are almost flush, and the construction is completed. The condition is excellent aesthetically.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of the present invention in Fig. 2 before assembly, Fig. 2 is a front view showing an example of the present invention, and Fig. 3 is a rain gutter construction explaining the usage state of the present invention. figure. A...Pipe fitting, B, C...Pipe, 1...
...Lid opening, 2...Step part, 6...Step part.

Claims (1)

[Scope of utility model registration request] An end of a tube whose cross-sectional outline follows the same circle in each part, the peripheral wall consists of a thick wall part and a thin wall part, and a step part is formed on the inner surface along the axial direction at the boundary between the thick wall part and the thin wall part. A port to be inserted into the protection pipe is provided at one end, and the peripheral wall of the port is composed of a thick part and a thin part, and a step is provided on the outer surface along the axial direction at the boundary between the thick part and the thin part. a step is provided at the periphery of the base of the port, and the height of the step is the same as the thickness of the thin wall portion of the tube in a portion corresponding to the thick wall portion of the port; A pipe into which the port of a pipe joint is inserted, the part corresponding to the thin wall portion of the port having the same thickness as the thick wall portion of the pipe, and the other end having the same external shape as the pipe. Connection with pipe fitting.