JPS6275192A - Connector - 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 (Field of Industrial Application) The present invention relates to a connector as a pipe joint that connects and separates pipes.

(Prior art) Conventionally, connectors used as pipe joints to connect and separate pipes have fastening claws that can be joined by simply pushing them together, and can be separated by pushing the fastening claws apart with a tool, etc. There was a one-touch connector that could be connected and separated instantly. (Refer to Japanese Patent Publication No. 50-3207.) (Problems to be Solved by the Invention) In the above prior art, when separating the pipes,
For instant separation, the tube is sealed under high pressure.
This is extremely dangerous for workers as fluids such as gases and liquids may blow out due to the pressure, and connectors may fly off due to the force of the ejection.

Further, as the fluid flows, the amount of fluid in the fluid system decreases, so there is a problem in that it is difficult to manage to ensure a predetermined amount of fluid.

(Means for Solving the Problems) The present invention has been made in view of the problems existing in the prior art described above, and a male connector has a cylindrical male connector body, and the male connector body has A fastening claw having a plurality of claw portions bent at an obtuse angle is provided on the outer peripheral surface, the tip of which extends in a direction opposite to the tip of the male connector, and the fastening claw and the tip of the male connector are connected to each other. An O-ring is fitted in between.

The female connector has a cylindrical female connector main body, and a fastening cylinder having an engaging part for engaging the fastening claw is screwed onto the outer peripheral surface of the female connector main body so as to be movable forward and backward in the connection direction. The fastening tube is configured to be movable between a position where the O-ring does not engage with the female connector body and a position where it engages and is pressed, and the connection can be separated with one touch. Our goal is to provide a flexible connector.

(Function) According to the above configuration, when the male connector is pushed into the female connector, the O-ring is pressed and sealed by the male connector main body and the female connector main body, and the fastening claw engages the fastening tube. If the connector is connected with one touch and then separated by one touch, rotate the fastening tube to loosen the connection.If a fluid is sealed at high pressure, push the two connectors apart from each other. The ring is released from being compressed by the female connector main body, and the engagement part between the fastening claw and the fastening cylinder is gently separated while being engaged.

(Example) Next, the present invention will be described based on the drawings. 1 to 6 are diagrams showing one embodiment of the present invention.

In the figure, 10 is a male connector, 20 is a female connector, and these two connectors 10 and 20 constitute a connector.

The male connector 10 has a cylindrical male connector body 11,
The male connector main body 11 may be made by separating the pipe portion 14 and joining them by brazing, for example, as shown in the figure, or it may be made as one piece (for example, by processing the tip of the pipe).
You may. A fastening pawl 12 is provided in a groove 11a on the outer circumferential surface of the male connector body 11 at a position slightly away from the tip llb of the 1 m connector 10. The fastening pawl 12 is formed by having a plurality of pawl portions 12C radially provided on an annular portion 12b having a hole through which the male connector main body 11 passes.

The claw portion 12c is bent at an obtuse angle, and the male connector body 1
When the fastening claw 12 is attached to the connector 1 by caulking or the like, the tip of the claw portion 12c extends in the opposite direction to the tip 11b of the male connector 10. Further, an annular groove 11c is provided in the outer peripheral surface lid between the fastening claw 12 and the tip 11b of the male connector 10, and an O-ring 13 is fitted into this groove 11c, protruding by a predetermined amount from the outer cylindrical surface lid.

On the other hand, the female connector 20 has a cylindrical female connector body 21, and the inner peripheral surface of the female connector body 21 connects a pipe portion 23 as a part of the female connector body 21, as shown in the figure. This pipe portion 23 is connected to the female connector main body 2 shown in FIG.
The pipe portion 23 may have a tip near the left end or protrude from the right end.In this example, the tip of the pipe portion 23 is flared and bonded or brazed. Further, a flange portion 21b is provided protruding from the outer peripheral surface of the female connector body 21, and a male thread 21a is formed at the tip end of the flange portion 21b.

The male screw 21a has a flange portion 21 and a fastening tube 22 having a female screw 22a and an engaging portion 22b formed on the inner periphery.
It is screwed so that it can move forward and backward in the connecting direction until it comes into contact with b. The engaging portion 22b is formed as an annular groove on the inner circumferential surface of the fastening tube 22. This fastening tube 22 is connected to the male connector main body 1
The outer peripheral surface 1 of the O-ring 13 fitted into the groove 11c of 1
The portion protruding from 1a moves from the position 1 where it does not engage with the female connector body 21, such as the position shown in FIGS. 2, 3, and 4, to the position where it engages with and is pressed by the female connector body 21, such as the position shown in FIG. In the above description, the fastening cylinder 22 is movable between the positions of .

FIG. 1 is a configuration diagram showing the male connector 10 pushed into the female connector 20 and coupled thereto.
the male screw 21 of the female connector body 21 until it touches b.
The male connector main body 1 is screwed into the annular groove of the engaging portion 22b provided on the inner circumference of the fastening tube 22.
At the same time that the claw portion 12c of the fastening claw 12 provided on the outer periphery of the male connector body 1 is engaged, the O-ring 13 is attached to the male connector body 1.
1 and the female connector body 21, and as shown in this embodiment, the female connector body 21
Although not shown, the pipe portion 23 may not reach the position of the pressed O-ring 13, as in the case where a part of the pipe portion 23 is used as the pipe portion 23.

The configuration of this embodiment has been described above, and the operation will be explained next.

As shown in FIG.
Screw it all the way to 1a, or until a little of the threaded part 21a remains. Female connector 2 in this state
When the male connector 10 is inserted into the 0, the 0 ring 13 is pressed between the male connector main body 11 and the female connector main body 21 and is sealed, as shown in FIG.

At the same time, the claw portion 12c of the fastening claw 12 engages the engaging portion 2 of the fastening tube 22.
The engaging portion 2 is bent at the end of 2b and springs into the rear groove.
It is hung on 2b. By pushing the male connector 10 in this way, the engagement connection is automatically completed with one touch.

Further, when the coupled male connector 10 and female connector 20 are to be separated for repair or inspection, the fastening tube 22 screwed onto the outer periphery of the female connector main body 21 is rotated and loosened. There are cases where the male connector body 11 and the female connector body 21 are connected while maintaining a seal with the O-ring 13, and cases where the connection is instantaneously released due to high pressure such as high pressure gas.

In the former case, if you stop loosening the fastening tube 22 at the position shown in Figure 3 and forcefully pull the two connector bodies 11 and 21 apart, the sealed fluid such as gas will gradually escape. , and the pressure also decreases accordingly. In the latter case, the male connector main body 11 comes out while the claw portion 12c is engaged with the engaging portion 22b, so that it comes out in the state shown in FIG. 3 in the same manner as in the former case.

Therefore, even if this circulation system is filled with high pressure, high temperature, or dangerous fluids, separation work can be carried out without danger. Furthermore, since the high-pressure fluid can be allowed to flow out gradually, there is no risk of the fluid scattering and there is no quantitative loss, compared to a case where the fluid comes off all at once.

After temporarily maintaining the state shown in FIG. 3 in this manner, the fastening tube 22 is further loosened to bring the state shown in FIG. 4 to completely remove the fluid from the system.

Remove pressure and temperature. If complete separation is not required, this diagram will complete the process. In the case of complete separation, the fastening tube 22 can be completely removed from the female connector main body 21, or the claws 12c can be pried.

When reconnecting, the male connector 10 and the female connector 20 are placed in a state as shown in FIG. 2 and attached close to each other, thereby completing the connection with one touch as shown in FIG. 1. Furthermore, if the separation is stopped in the state shown in FIG. 4, the connection can be completed in the state shown in FIG. 1 by continuing to tighten the fastening tube 22.

(Effects) As described above, according to the present invention, the connection is performed with a single touch, so the operability is good. In addition, the separation is performed by rotating the fastening cylinder to loosen the screws and allow for gentle separation, so that fluids such as gases and liquids that are sealed under high pressure and high temperature conditions that pass through the connector are gradually extracted. Since it is separated after the high temperature and high pressure are released, it has the excellent effect of not being dangerous to workers. Furthermore, since the fluid does not scatter, it is easy to manage the quantity of the fluid.

[Brief explanation of drawings]

Figures 1 to 6 show an embodiment of the connector according to the present invention, with Figure 1 being a sectional view when attachment is completed, Figure 2 being a sectional view before attachment, and Figure 3 being a sectional view during separation. FIG. 4 is a cross-sectional view after separation, FIG. 5 is a perspective view of the entire structure before installation, and FIG. 6 is a perspective view of the entire structure before installation as seen from the opposite direction of FIG. 5. 10...Male connector 20...Female connector 11
...Male connector body 21...Female connector body 11a
... Groove 21a ... Male thread 12 ... Fastening claw 22 ... Fastening cylinder 13 ... O-ring
22a... Female thread 22b... Engaging portion

Claims (1)

[Scope of Claims] The male connector has a cylindrical male connector main body, and the outer circumferential surface of the male connector main body has a fastening claw having a plurality of claws bent at an obtuse angle. The female connector has a cylindrical female connector main body, which is provided so as to extend in a direction opposite to the tip of the male connector, and an O-ring is fitted between the fastening claw and the tip of the male connector. A fastening cylinder having an engaging portion for engaging the fastening claw is screwed onto the outer circumferential surface of the female connector main body so as to be movable forward and backward in the connection direction, and the fastening cylinder is configured such that the O-ring is connected to the female connector. A connector characterized in that it is movable between a position where it does not engage with a main body and a position where it engages and is pressed with the female connector main body.