JPH09210278A - Pipe joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably determine a fixed position of a branch pipe connected to a main pipe of a distribution water pipe, and adjust an opening direction of a connection implement, even if it is formed in L or T shape, after it is engaged with a joint main unit. SOLUTION: A pipe joint for connecting a main pipe C of a closed conduit distributing water pipe and a branch pipe is formed with a pipe joint main unit 3 having flange parts 5, 6 provided in both end edges along the lengthwise direction of a cylindrical unit 4 and a connection implement 7 cylindrically formed to conform its peripheral surface to an internal peripheral surface of the joint main unit 3 to be connected thereto by fitting this comforming part to inside the pipe joint main unit 3. In each internal peripheral surface of the joint main unit 3 and external peripheral surface of the connection implement 7, an annular male fitting member 1 and female fitting member, 2 capable of mutually fitting to each other are provided respectively in either one of the internal and external peripheral surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe joint for connecting a branch pipe connected to the outer peripheral surface of a synthetic resin underdrain water distribution pipe, and more particularly to a stable fixing position of the branch pipe and a connecting work time. Regarding short pipe fittings.

[0002]

2. Description of the Related Art Heretofore, as a pipe joint, one formed by a tubular joint body directly connected to an underdrain pipe and a connecting tool connected between the joint body and a branch pipe of the underdrain pipe has been known. It is known that a screw connection is adopted as a means for connecting a connecting tool to the joint body (for example, Jitsuko Sho 5).
6-26152).

[0003]

However, if such a means is adopted, there is a problem that the fixed position of the branch pipe becomes uncertain because the projected size of the connection tool and by extension the branch tube varies depending on the tightening condition of the screw. Further, when the connecting tool is formed in an L-shape or a T-shape, there is a problem that the pipe must be loosely tightened to adjust the opening direction of the connecting tool.

Therefore, the object of the present invention is to stably determine the fixing position of the branch pipe connected to the main pipe of the underdrain water distribution pipe, and even if it is an L-shaped or T-shaped connection tool. The purpose of the present invention is to provide a pipe joint capable of adjusting the opening direction of the connector after engaging the connector with the joint body.

[0005]

As a result of intensive studies in view of the above, the present inventor has found that the means for engaging the connector with the joint body does not deviate in the longitudinal direction of the pipe joint, but the circumference of the pipe joint does not deviate. It has been found that the above-mentioned problems can be solved by adopting an engaging means that is not restricted in the direction, and has completed the present invention.

That is, a pipe joint according to the present invention includes a joint body having both end edges along the longitudinal direction of a tubular body made of an elastic member or flange portions provided near the both end edges.
A pipe joint having a tubular shape, the outer peripheral surface of which is aligned with the inner peripheral surface of the joint body, and a fitting which is connected to the joint body by fitting the matching portion inside the joint body. Yes, the joint body is fixed to the main pipe of the underdrain pipe, and the end of the connecting tool that is not connected to the joint body is connected to the branch pipe of the underdrain pipe to connect the main pipe of the underdrain pipe. In the pipe joint that connects the pipe and the branch pipe,
An annular male fitting member and a female fitting member that are fitted to each other are respectively provided on the inner peripheral surface of the joint body and the outer peripheral surface of the connector, respectively.

Here, since the male fitting member and the female fitting member, which are characteristic parts of the present invention, are formed in an annular shape, they do not deviate in the longitudinal direction of the pipe joint, but in the circumferential direction of the pipe joint. The engaging means has no restraint, and can be stably fixed even after the fitting without breaking the positional relationship between the joint body and the connector. Even after they are fitted in particular, the positions can be adjusted by appropriately rotating them by sliding the annular irregularities.

The male fitting member and the female fitting member may be provided on either the joint body or the connector as long as they are provided so as to engage with each other. The convex vertical cross-sectional shape of the male fitting member can be appropriately selected as long as it does not deviate in the longitudinal direction of the pipe fitting in relation to the female fitting member, and specifically, a triangle or a quadrangle. Etc., a shape having a curved line such as a polygonal shape, a semicircular shape, a semielliptic shape, a shape in which a curved line is added to a polygonal shape, or a shape in which unevenness is added to a part thereof. It is needless to say that the vertical cross-sectional shape of the female fitting member is a concave shape that matches the male fitting member.

As the material of the joint body and the connector, conventionally known materials can be appropriately selected and employed. Specifically, rubber, synthetic resin simple substance or composite, or fiber for reinforcing these There is a composite of a member and a plate member. When inserting the joint body and the connecting tool, it is preferable to apply a lubricant in order to facilitate the work.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to FIG. FIG. 1 is a vertical cross-sectional view schematically showing a form in which a pipe joint embodying the present invention is attached to an underdrain water pipe.

This pipe joint is a cylindrical body 4 made of an elastic member.
Flange portions 5 provided at both end edges along the longitudinal direction of
6 and a connector main body 3 made of polyethylene, and a connector 7 which is formed into a tubular shape while being bent in an L-shape and whose outer peripheral surface is aligned with the inner peripheral surface of the joint main body 3. There is. Further, an annular female fitting member 2 is provided on the inner peripheral surface of the joint body 1, and a male fitting member 1 is provided on the outer peripheral surface of the connector 7, and the male fitting member 1 and the female fitting member 1 are provided. The fitting members 2 are formed so as to fit each other. In addition, in the figure, the symbol C is the main pipe of the underdrain distribution pipe.

The joint body 3 is fixed to the main pipe C of the underdrain water pipe, and a branch pipe of the underdrain water pipe (not shown in the figure) is provided at an end 8 of the connector 7 which is not connected to the joint body 3.
The same shall apply hereinafter) by connecting the main conduit C of the underdrain
And the branch pipe is connected.

The pipe joint according to the present invention is a main pipe C of an underdrain water pipe.
The work process of connecting to is as follows. That is, the joint body 3 is inserted into the opening of the main pipe C which is opened to have the same shape as the central outer shape of the joint body 3. In this insertion, the flange portion 5 having an outer diameter larger than the inner diameter of the opening must first be passed through the opening.
Since the entire joint body 3 is formed of polyethylene, the flange portion 5 can be passed by its own elastic force. Next, an edge of the connector 7 having an outer peripheral surface aligned with the inner peripheral surface of the joint body 3 is inserted into the joint body, and the male fitting member 1 is inserted into the female fitting member 2.
To lock and complete. When inserting the joint body 3 and the connector 7, a lubricant was applied in advance in order to facilitate the work.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A pipe joint according to a first embodiment of the present invention will be described in detail with reference to FIG. FIG. 2A is a vertical section schematically showing the first embodiment of the present invention, and FIG. 2B is a vertical section schematically showing the second embodiment of the present invention.

The pipe joint disclosed in the first embodiment is the same as the pipe joint shown in FIG. 1 disclosed in the embodiment of the present invention, in which the male fitting member 1 is provided on the inner peripheral surface of the joint body 3. Fitting member 2
Is provided on the outer peripheral surface of the connector 7. Further, one projection surface of one of the concavo-convex shapes of the male fitting member 1 and the female fitting member 2 is cut up toward the center of the circumference. The connecting tool 7 has an end portion 8 on the side not connected to the joint body 3 formed in a simple tubular shape.

In this embodiment, since the male fitting member 1 and the female fitting member 2 have the projections and depressions on one of the projections and depressions toward the center of the circumference, the connector 7 is a joint. It is more difficult to pull out from the main body 3. Further, since the end portion 8 of the connector 7 is formed in a simple tubular shape, the branch pipe of the underdrain water distribution pipe can be extended in the longitudinal direction of the pipe joint.

In the pipe joint according to the second embodiment, the L-shaped connector 7 disclosed in FIG. 1 is formed in a T-shape.

In this embodiment, the male fitting member 1
Since the female fitting member 2 is formed in a ring shape, it does not deviate in the longitudinal direction of the pipe joint, while the male fitting member and the female fitting member are slid to rotate appropriately so that the connector is The opening direction of the edge can be adjusted. Therefore, not only can the fixing position of the branch pipe be stably determined, but also after the fitting, the fixing position can be stably fixed without breaking the positional relationship between the joint body and the connector.

[0019]

According to the present invention, a pipe joint is formed in a tubular shape with a joint body having both end edges along the longitudinal direction of a tubular body made of an elastic member or flange portions provided near the both end edges. A pipe joint having an outer peripheral surface aligned with an inner peripheral surface of the joint body, and a connector that is connected to the joint body by fitting the matching portion inside the joint body. Is fixed to the main pipe of the underdrain water distribution pipe, and the end of the connection tool that is not connected to the joint body is connected to the branch pipe of the underdrain water pipe to connect the main pipe of the underdrain water pipe and the branch pipe. In the pipe joint, the annular male fitting member and the female fitting member, which are fitted to each other on the inner peripheral surface of the joint main body and the outer peripheral surface of the connector, are provided on either one of the two. , By this, the branch connected to the main of the underdrain distribution pipe While the fixed position of the connector can be stably determined, even if the connector is formed in an L shape or a T shape, the opening direction of the connector is adjusted after the connector is engaged with the joint body. It has the effect that

[Brief description of drawings]

FIG. 1 is a vertical sectional view schematically showing an embodiment of the present invention.

FIG. 2A is a vertical cross section schematically showing a first embodiment according to the present invention, and FIG. 2B is a vertical cross section schematically showing a second embodiment according to the present invention.

[Explanation of symbols]

 1 Male Fitting Member 2 Female Fitting Member 3 Joint Body 4 Cylindrical Body 5 Flange Part 6 Flange Part 7 Connector 8 End C Main Pipe

Claims (1)

[Claims] 1. A joint main body (3) having a tubular body (4) made of an elastic member and having flange portions (5, 6) provided at both end edges along the longitudinal direction or near the both end edges, and a tubular shape. A connection which is connected to the joint body (3) by forming an outer peripheral surface thereof aligned with the inner peripheral surface of the joint body (3) and fitting the matching portion inside the joint body (3). And a fitting (7), wherein the fitting body (3) is fixed to the main pipe (C) of the underdrain distribution pipe, and the fitting (7) is provided.
In the pipe joint for connecting the main pipe (C) of the underdrain pipe and the branch pipe by connecting the end (8) on the side not connected to the joint body (3) to the branch pipe of the underdrain pipe, An annular male fitting member (1) and a female fitting member (2), which are fitted to each other on the inner peripheral surface of the joint body (3) and the outer peripheral surface of the connector (7), are provided on either side. Pipe fittings characterized by being provided respectively.