JPH07208674A - Constituent unit pipe of branch pipe - Google Patents

Abstract

PURPOSE:To provide a branch pipe having fine appearance wherein directivity of a circumferential surface opening part is freely set by only screwing it to male screw cylinders for another constituent unit body to which a connecting nut is connected. CONSTITUTION:Male screw cylinders 5 are provided to one end of a main body 4 wherein an opening part 2 for connecting a branch pipe is provided on its circumferential surface. Seal rings 9 are protrusively provided on the inner circumferential surfaces of the male screw cylinders 5. Further, connecting cylinders 6 wherein the seal rings 9 of other adjacent constituent unit pipes 1 are in contact with an outer circumferential surface so as to be surrounded are provided on another end facing to the other end of the main body 4. Connecting nuts 13 to screw the male screw cylinders 5 of other adjacent constituent unit pipes l are assembled to the connecting cylinders 6, with free turning motion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structural unit pipe of a branch pipe used for water supply or the like to divide a liquid such as water mainly as a fluid.

[0002]

2. Description of the Related Art The idea of connecting a plurality of structural unit pipes to each other to form a branch pipe is disclosed, for example, in Japanese Utility Model Laid-Open No. 5-9587.
It is described in Japanese Patent Publication No.

In this conventional example, a protruding cylindrical portion is provided at one end of a main body having an opening for connecting a shunt pipe on the peripheral surface, and the protruding cylindrical portion is provided on the inner peripheral surface of another constituent unit pipe adjacent to the protruding cylindrical portion. A seal ring and a groove are provided in contact with each other, and a pin penetrating from the outside of the other constituent unit pipe is engaged with the groove.

[0004]

In the conventional example, a plurality of structural unit pipes are connected using a structural unit pipe and a separate pin, and the pins are exposed on the outer peripheral surface of the branch pipe and the appearance is not good. It is not always good, and if the pin is cut due to adhesion of rust or the like, the state of the branch pipe due to the structural unit pipe is easily destroyed, and therefore the installation location is subject to regulations.

The present invention has been made by paying attention to such a conventional defect.

[0006]

A male screw cylinder is provided at one end of a main body whose peripheral surface is provided with an opening for connecting a shunt pipe, and a seal ring is projectingly provided on an inner peripheral surface of the male screw cylinder so as to be adjacent to the male screw cylinder. A connecting tube surrounding the outer peripheral surface of the seal ring of the other structural unit pipe is provided at the other end corresponding to the one end of the main body, and the connecting cylinder is provided with the male member of the adjacent other structural unit pipe. A connection nut for screwing the screw cylinder is rotatably assembled.

[0007]

[Operation] In the space between the connection nut and the connection tube,
An appropriate number of constituent unit pipes are connected by screwing the connection nut onto the male screw cylinder so that the male screw cylinders of the other adjacent constituent unit pipes are engaged, and an appropriate number of constituent unit pipes are connected to the peripheral surface. A branch pipe having an opening for connecting a passage pipe can be obtained, and the connecting tube can be freely rotated with respect to a connection nut or a male screw of another component unit pipe connected thereto, and as a result, the opening pipe You can freely decide the position.

[0008]

1 is a front view, FIG. 2 is a longitudinal sectional view of an intermediate portion, and FIG. 3 is a longitudinal sectional view of one end portion. 4 is a vertical cross-sectional view of the other one end.

In the figure, reference numeral 1 denotes a structural unit tube, which is a structural unit tube 1.
Is provided with a male screw cylinder 5 at one end of a main body 4 having a female screw cylinder 3 forming an opening 2 for connecting a shunt pipe on its peripheral surface and a connection cylinder 6 at the other end corresponding to the one end. It is configured by.

An engaging groove 8 is provided on the inner peripheral surface 7 of the male screw cylinder 5, and a rubber seal ring 9 is engaged with the engaging groove 8 to project from the inner peripheral surface 7. There is.

The connecting cylinder 6 has an outer diameter substantially equal to the inner diameter of the male screw cylinder 5 of the other adjacent unit tube 1.
The seal ring 9 of the male screw cylinder 5 of the other adjacent unit tube is in contact with and surrounded by the outer peripheral surface 10, and the liquid leakage is prevented by the contact relationship of the seal ring 9 with the outer peripheral surface of the connecting cylinder 6. ing.

A locking groove 11 is provided in the outer peripheral surface 10 of the connecting cylinder 6 on the slightly base side, and the locking groove 11 is made of stainless steel C.
A small diameter portion 14 of a connection nut 13 assembled to the connection cylinder 6 by fitting and locking a ring 12 and projecting from the outer peripheral surface 10 so as to penetrate the connection cylinder 6 by the C ring 12.
And a connection nut 13 is rotatably assembled to the connection cylinder 6, and a female screw threaded on the inner peripheral surface of the large-diameter portion 15 to the male screw cylinder 5 of the other constituent unit tube 1 adjacent thereto. 16 is engraved.

Therefore, the connection nut 13 is screwed into the male screw cylinder 5 so that the male screw cylinder 5 of the other constituent unit pipe 1 adjacent to the space 17 formed between the connecting cylinder 6 and the connection nut 13 is engaged. The branch pipe A can be obtained by tightening and sequentially connecting an appropriate number of constituent unit pipes 1, ...

The branch pipe A of the embodiment has a first joint member 20 having a male screw cylinder 5'and a seal ring 9'having substantially the same structure as the structural unit pipe 1 at one end, and a structure at the other end. A second joint member 21 having a connecting tube 6'or a C-ring 12 ', etc. is provided similarly to the connecting tube 6 side of the unit pipe 1.

In the figure, 20a is a male screw and 21a is a female screw.

Further, in the figure, reference numeral 22 denotes a closing screw which is removably screwed into the female screw cylinder 3 to close the opening 2 formed by the screw cylinder 3.

For example, the present invention may be carried out so as to obtain a branch pipe in a form in which the female screw portion 21a of the second joint member 21 is closed.

A knurl is provided on the peripheral surface of the connection nut 13.

[0019]

Since the present invention has the above-mentioned constitution,
By simply screwing the connection nut into the male screw cylinder of the other constituent unit body, the direction of the peripheral surface opening can be freely adjusted, and a branch pipe with a good appearance can be obtained.

[Brief description of drawings]

FIG. 1 is a front view of a branch pipe.

FIG. 2 is a vertical cross-sectional view of an intermediate portion of a branch pipe.

FIG. 3 is a vertical cross-sectional view of one end of a branch pipe.

FIG. 4 is a vertical cross-sectional view of the other end of the branch pipe.

[Explanation of symbols]

 1 Structural unit pipe 2 Opening part 4 Main body 5 Male screw cylinder 6 Connection cylinder 9 Seal ring 13 Connection nut

Claims (1)

[Claims] 1. A male screw cylinder is provided at one end of a main body having an opening for connecting a shunt pipe on a peripheral surface thereof, and a seal ring is projectingly provided on an inner peripheral surface of the male screw cylinder, and another adjacent structure is provided. A connecting cylinder, which is surrounded by the seal ring of the unit pipe in contact with the outer peripheral surface thereof, is provided at the other end corresponding to the one end of the main body, and the male screw cylinder of the other adjacent constituent unit pipe is screwed into the connecting cylinder. A branch pipe component unit tube with a mating connection nut assembled rotatably.