JP2005024085A - Pipe fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe joint capable of opening and closing an on-off valve with a simple structure.
[Solution]
The male joint member 14 has the engaging recess 40 that receives the lock 26 that is located at the radially inner position and prevents the male joint member 14 from coming out of the connecting hole 18 of the female joint member 12. The engaging recess extends a predetermined distance in the axial direction of the male joint member, and the male joint member is coaxial with the open position where the on-off valve 16 is opened, and the valve is closed. It was possible to move between the closed position.
[Selection] Figure 3

Description

The present invention relates to a pipe joint, and in particular, to a pipe joint that can open and close an on-off valve provided therein by moving a male joint member in an axial direction with respect to a female joint member. .

In a state where the female joint member (socket) and the male joint member (plug) are connected, by changing the relative position of both joint members, the pipe that is configured to adjust the opening and closing of the on-off valve set inside A joint is known (for example, Patent Document 1).
That is, in this pipe joint, the male joint member is rotated relative to the female joint member, and is held at that position at a predetermined angular position, thereby adjusting the opening of the on-off valve and keeping it constant. It is something to keep in.
Shokai 51-148723

  SUMMARY OF THE INVENTION An object of the present invention is to provide a pipe joint that is simple in structure and that opens and closes an on-off valve by applying a force when necessary, and automatically closes the on-off valve when the force is lost. .

That is, the present invention
In a pipe joint having a female joint member and a male joint member,
The female joint member
A female main body having a connecting hole for inserting and connecting a male joint member and a fluid passage communicated with the connecting hole, the through hole provided in the radial direction on the peripheral wall of the connecting hole A female body having a locking element movable between a radially inner position and a radially outer position in the hole;
A sleeve movably provided around the female main body, the first position having the locking element as the radially inner position, and allowing the locking element to be at the radially outer position. A sleeve movable between the second position;
An open / close valve that is set in the fluid passage and opens and closes the fluid passage;
The male joint member
When the sleeve is in the second position, the female joint member can be inserted into and extracted from the connection hole, and the male joint member is inserted into the connection hole. When the sleeve is in the first position, the lock is received in the radially inner position so that the male joint member does not come out of the connection hole of the female joint member. Has a recess,
The engagement recess extends a predetermined distance in the axial direction of the male joint member, and the male joint member moves in the coaxial line direction in a state where the locking element is received in the engagement recess. A pipe joint is provided which is movable between an open position where the valve is opened and a closed position where the valve is closed.
That is, in this pipe joint, in a state where the male joint member and the female joint member are inserted and connected, the operator can open and close the on-off valve by moving the male joint member to the open position and the closed position.

Specifically, the on-off valve is
A valve seat formed in the fluid passage;
A valve body that is engaged and disengaged from the valve seat to open and close the on-off valve;
A spring for biasing the valve body against the valve seat,
The male joint member is brought into the closed position by the spring via the body valve body, and can be moved to the open position against the spring.
By doing so, if the operator loses the force on the male joint member, the male joint member returns to the closed position, and the on-off valve is automatically closed.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a pipe joint according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows a state where the female joint member 12 and the male joint member 14 of the pipe joint 10 according to the present invention are separated, and FIG. 2 shows that the female joint member 12 and the male joint member 14 are connected. FIG. 3 shows a state in which the on-off valve 16 is closed. FIG. 3 shows a state similar to FIG.

The female joint member 12 communicates with a connection hole 18 for inserting and connecting the male joint member 14 and a fluid conduit H (FIGS. 2 and 3) such as a hose at the end. A female body having a fluid passage 20 connected thereto; A predetermined number of through holes 22 extending in the radial direction are provided in the peripheral wall of the connecting hole 18 at predetermined intervals in the circumferential direction, and in the hole, a radially inner position (shown), A locking element 26 is provided that is movable between a position radially outward from the position. The through hole 22 is tapered inward in the radial direction so that the lock 26 does not fall into the connecting hole 18.
Around the female main body, a sleeve 28 is movable in the axial direction of the female main body, and a first position for pressing the locking element 26 to the radially inner position (as shown); In a position on the left side, the locking element 26 is released from being pressed in the radial direction and is movable between a second position that allows the locking element to be in the radially outer position. . In the illustrated example, the compression spring 30 urges the sleeve 28 to the right and is engaged by the stop ring 32 to be in the first position. It moves to the left against the spring 30.

  The on-off valve 16 includes a valve seat 34 formed in the fluid passage 20, a valve body 36 that is engaged / disengaged from the valve seat to open / close the on-off valve, and the valve body to the valve seat 34. And a spring 38 for urging it to be pressed. In the present embodiment, the valve seat 34 is formed by setting an annular packing on the inner wall surface of the fluid passage 20.

When the sleeve 28 is in the second position (a position where the locking element 26 is not pressed inward in the radial direction), the male joint member 14 is inserted into and pulled out from the connection hole 18 of the female joint member 12. Have been able to. When the male joint member 14 is inserted into the coupling hole and the sleeve 28 is in the first position shown in the drawing, the lock 26 that is the radially inner position is received, and the male joint is received. An engaging recess 40 is provided to prevent the member 14 from coming out of the connecting hole 18 of the female joint member 12. The engaging recess 40 extends a predetermined distance in the axial direction of the male joint member 14, and the male joint member 14 moves in the coaxial line direction with the locking element 26 received in the engaging recess 40. The open / close valve 16 is movable between an open position and a close position that allows the valve to be closed. In the example shown in the figure, the engaging recess 40 is formed in an annular shape, but has a groove-like shape extending in the axial direction provided in the same number corresponding to a plurality of locking elements 26 that are separated by a predetermined distance in the circumferential direction. It can also be.

  As can be understood from the above description, in order to insert the male joint member 14 in the state shown in FIG. 1 into the female joint member 12, the sleeve 28 is opposed to the spring 30 to the second position (shown in the figure). The sleeve 28 is moved to the left position) to eliminate the radially inward pressing by the sleeve 28. In this state, when the male joint member 14 is inserted into the coupling hole 18 of the female joint member 12 and the sleeve 28 is released in this state, the sleeve is moved to the right by the spring 30 and is moved to the position shown in FIG. That is, the lock position 26 is pressed inward in the radial direction. In this state, the lock 26 is received by the engagement recess 40 of the male joint member 14 and prevents the male joint member 14 from coming out of the female joint member 12.

In this state, the on-off valve 16 is in a closed state. Therefore, if the male joint member 14 is moved to the left relative to the female joint member 12, the valve body 36 of the on-off valve is separated from the valve seat 34, and the on-off valve is opened. Fluid flow through.
When the operator releases the male joint member 14, the male joint member 14 is moved to the right by the action of the spring 38 of the on-off valve 16, and the valve body 36 engages with the valve seat 34, thereby opening and closing the male joint member 14. The valve 16 is closed.

2 and 3 show a case where the pipe joint 10 according to the present invention is used for cleaning the intestine O eaten by hormone baking or the like. That is, the nozzle tube N screwed to the male joint member 14 is inserted into the end of the intestine O, and the male joint member 14 is moved to the left as shown in FIG. 16 is opened so that the cleaning solution can be passed through the intestines.

When the present invention is used for such use, the connection between the female joint member 12 and the male joint member 14 is periodically released to clean the inside. To release the connection, the sleeve 28 is illustrated. It can be done simply by moving it from the position to the left. Moreover, when changing the liquid for intestinal washing | cleaning etc. which let the said pipe joint pass, it can change easily to piping suitable for the liquid.

It is a side view showing the state where the female joint member and male joint member of the pipe joint concerning the present invention are separated. A state where the female joint member and the male joint member of the pipe joint are connected and used to clean the inside of the intestine for filling the intestines, and the on-off valve of the pipe joint is in a closed state. It is a partial cross section side view shown. FIG. 3 is a partial cross-sectional side view showing that the on-off valve is opened in the pipe joint of FIG. 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Pipe joint 12 Female joint member 14 Male joint member 16 On-off valve 18 Connection hole 20 Fluid passage 22 Through hole 26 Locking element 28 Sleeve 30 Spring 32 Stop ring 34 Valve seat 36 Valve body 38 Spring 40 Engaging recess H Hose N Nozzle O Intestine

Claims (2)

A female joint member;
A male joint member;
Have
Female joint members
A female main body having a connecting hole for inserting and connecting a male joint member and a fluid passage communicated with the connecting hole, the through hole provided in the radial direction on the peripheral wall of the connecting hole A female body having a locking element movable between a radially inner position and a radially outer position in the hole;
A sleeve movably provided around the female body, wherein the sleeve engages with the locking element, and the locking element is in the radial direction; the locking element is in the radial direction; A sleeve that is movable between a second position that allows an outer position;
An open / close valve that is set in the fluid passage and opens and closes the fluid passage;
The male joint member
When the sleeve is in the second position, the female joint member can be inserted into and extracted from the connection hole, and the male joint member is inserted into the connection hole. When the sleeve is in the first position, the lock is received in the radially inner position so that the male joint member does not come out of the connection hole of the female joint member. Has a recess,
The engagement recess extends a predetermined distance in the axial direction of the male joint member, and the male joint member moves in the coaxial line direction in a state where the locking element is received in the engagement recess. A pipe joint characterized by being movable between an open position where the valve is opened and a closed position where the valve is closed. The on-off valve
A valve seat formed in the fluid passage;
A valve body that is engaged and disengaged from the valve seat to open and close the on-off valve;
A spring for biasing the valve body against the valve seat,
The said male joint member is set to the said closed position by the said spring via the said valve body, and it is made to move to the said open position against the spring. Pipe fittings.

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