JPH04145289A - Self-sealing tube coupling - Google Patents

Abstract

PURPOSE:To secure such a self-sealing tube coupling that is excellent in setting operability even by means of a robot hand by installing a stage, a claw female body, a slider plate, a bar male body, a holding body and a compression coil spring, while making a plug get into a socket in the state that the bar male body is inserted into and engaged with the claw female body, and opening both valves. CONSTITUTION:In this device, a plug 10 of a self-sealing tube coupling for a tube end is plugged in a socket 20 at the vessel side, and thereby a tube 2 and a vessel 1 are interconnected to each other. A claw female body 40 is set up on a stage 42 of a socket body 21. A bar male body 30 fitted in this claw female body 40 is installed in a slider plate 32. A holding body 39 of the plug 10 is attached tight to this slider plate 32. Then, a compression coil spring 35 is attached to a plug body 11. In a state that the bar male body 30 is engaged with the claw female body 40, the plug 10 is inset in the socket 20, opening both valves 15, 25. In consequence, setting of the self-sealing tube coupling and vice versa, is facilitated and, what is more, its setting operation is easily executable by means of a simple structural robot hand.

Description

[Detailed Description of the Invention] [Summary] A self-sealing pipe that is related to self-sealing pipe joints, particularly self-sealing pipe joints that can be installed and removed using a robot hand, and that has excellent operability in connection and removal, and can also be easily installed and removed by a robot hand. For the purpose of providing a fitting, the plug of a self-sealing fitting is attached to either the end of the pipe or the vessel, and the socket of the self-sealing fitting is fitted to the other side, and the plug is inserted into the socket. The pipe and the container are communicated with each other; in the constructed device, six stages are attached to the socket body, and a female body with a claw is disposed on the two stages with the socket body as the center; In order to allow the plug to slide freely in the insertion direction, a slider plate is attached to the outer top of the plug body, and the female body with a claw is disposed with the plug body in the middle and can be engaged and disengaged. a rod-shaped male body that fits into the slider plate; a grip body attached to the back side of the slider plate;
A compression coil spring is attached to the outer periphery of the plug body to bias the slider plate in the direction of the tube, and when the rod-shaped male body is inserted and engaged with the female body with claws, the plug is The structure is such that when plugged into the socket, both valves open.

[Industrial Field of Application] The present invention relates to a self-sealing pipe joint, and particularly to a self-sealing pipe joint that can be attached and detached by a robot hand.

In environments where manual operation is difficult, such as nuclear power plants and space environments, it is required to attach and detach pipe joints using robot operations.

C. Conventional technology] FIG. 4 is a sectional view of a conventional self-sealing pipe joint.

In FIG. 4, a self-sealing fitting plug 10 is secured to the container 1, and a self-sealing fitting socket 20 is attached to the end of the tube 2.

The plug 10 has a cylindrical plug body 1 with a valve seat 12 at the tip.
1 and an umbrella-shaped valve 15 mounted inside the plug body 11.

To be more specific, the valve holder 13 is installed in the cylinder of the plug body 11, a shaft hole through which the shaft of the valve 15 is inserted is bored in the valve holder 13, and the shaft of the valve 15 is inserted into the shaft hole. , so that the conical surface of the umbrella portion of the valve 15 faces the valve seat 12.
5 is attached to the plug body 11.

Further, a compression coil spring 1 is provided between the valve 15 and the valve holder 13.
4, the valve I5 is biased toward the valve seat 12, and when not in use, the conical surface of the valve 150 is brought into contact with the valve seat 12, and the plug 10 has a self-sealing structure.

A ring-shaped groove 16 is provided on the outer circumferential surface of the plug body 11 so that a ball 26 of a socket 20, which will be described later, is engaged therewith.

On the other hand, the socket 20 has a fitting hole 29 at its tip into which the plug 10 is inserted, a cylindrical socket main body 21 with a valve seat 22 provided at the base of the fitting hole 29, and an umbrella-shaped socket body 21 mounted inside the socket main body 21. The socket is comprised of a valve 25 and a sleeve 27 attached to the outer peripheral surface of the tip of the socket body 21.

Specifically, a valve holder 23 is attached to the rear of the valve seat 22 in the cylinder of the socket body 21, and a shaft hole through which the shaft of the valve 25 is inserted is bored in the valve holder 23. By inserting the shaft portion of the valve 25 into this shaft hole, the valve 25 is inserted into the socket main body 22 so that the conical surface of the cap portion of the valve 25 faces the valve seat 22.
It is attached to.

Further, a compression coil spring 2 is provided between the valve 25 and the valve holder 23.
4, the valve 25 is biased toward the valve seat 22, and when not in use, the conical surface of the valve 25 abuts against the valve seat 22, making the socket 20 a self-sealing structure.

On the other hand, a sleeve 27 is attached to the outer circumferential surface of the tip of the socket body 21 so as to be slidable in the axial direction, and two balls 26 are attached to the shell portion of the socket body 21.

When the sleeve 27 is moved toward the distal end of the socket body 21, the ball 26 is pressed against the inner wall of the sleeve 27, and the inner ball protrudes toward the center from the inner wall of the insertion hole 29.
When the sleeve 27 is moved to the tube 2 side of the socket body 21, the inner sphere of the ball 26 is embedded in the inner wall of the insertion hole 29.

Further, an O-ring 28 is attached to the inner wall of the fitting hole 29 so as to be in close contact with the outer circumferential surface of the plug body 11 in an airtight manner.

Since the self-sealing pipe joint is constructed as described above, the socket 20 is fitted into the plug 10 with the sleeve 27 drawn toward the pipe 2, and the plug body 1 is inserted into the fitting hole 29.
Plug in 1. When the finger pulling the sleeve 27 is released, the sleeve 27 moves forward due to the elasticity of the spring, the ball 26 engages with the ring-shaped groove 16 of the plug body 11, and the socket 20 is removed from the plug 10 and falls. prevent.

On the other hand, since the heads of both valves 15.25 are in contact with each other in this state, each valve 15.25 retreats against the elasticity of the compression coil spring 14 or the compression coil spring 24, and the valve 15.
is separated from the valve seat 12, and the valve 25 is separated from the valve seat 22, the self-sealing state is released and the pipe 2 and the container 1 communicate with each other.

At this time, since the circle ring 28 is in close contact with the outer circumferential surface of the plug body 11, there is no fear that the fluid flowing through the joint will leak out of the joint.

Further, the socket 20 is removed from the plug 10 by pulling the socket 20 out after pulling the sleeve 27 toward the pipe 2 and releasing the engagement between the ball 26 and the ring-shaped groove 16.

(Problems to be Solved by the Invention) In order to attach or detach the self-sealing pipe joint of the conventional example described above, the sleeve 27 is drawn toward the pipe 2 side, and the socket 20 is inserted into the plug 10, or the socket 20 is removed from the plug 10. Therefore, there was a problem that the operability of attaching and detaching was poor.

In addition, in order to perform attachment and detachment with a robot hand, use a two-arm robot hand, and use the fingers of one arm to hold the sleeve 2.
7 toward the tube 2 side, the socket 20 must be grasped with the fingers of the other arm to apply insertion/extraction motion to the socket 20, which poses the problem of complicating the structure of the robot hand. Ta.

The present invention was created in view of these points, and an object of the present invention is to provide a self-sealing pipe joint that has excellent operability in attachment and detachment and can be easily attached and detached even by a robot hand.

[Failure to solve the problem]

In order to achieve the above object, the present invention, as illustrated in FIG. In a device that connects the pipe 2 and the container 1 by plugging it in, a stage 42 is attached to the socket body 21.
is attached, and a plurality of female bodies 40 with claws are arranged on the stage 42 with the socket body 21 at the center.

On the other hand, a slider plate 32 is attached to the outer periphery of the plug body 11 so as to be able to slide freely in the insertion/extraction direction of the plug 10, and the slider plate 32 faces each of the female bodies 40 with claws with the plug body 11 in the center. Then, a rod-shaped male body 30 that is engageably and releasably fitted to the female body 40 with claws is provided.

Further, a gripping body 39 for gripping the plug 10 with a robot hand or the like is fixed to the back side of the slider plate 32.

Further, a compression coil spring 35 is attached to the outer periphery of the plug body 11 in order to bias the slider plate 32 backward, that is, toward the tube 2 side.

The plug 10 is then plugged into the socket 20 with the rod-shaped male body 30 engaged with the clawed female body 40, and both valves 15, 25 are opened.

[Effect]

The above-mentioned fitting structure between the rod-shaped male body and the female body with claws is such that the rod-shaped male body 3
0 is pushed into the female body with claws 40, it engages, and when the rod-shaped male body 30 is pushed deeper into the female body with claws 40, the engagement is released. The pair of claws of the clawed female body 40 that receives the plug head of the rod-shaped male body 30 have an inverted umbrella-shaped opening to facilitate insertion of the plug head, and when the claws grip the plug head, the clawed female body 40 receives the plug head of the rod-shaped male body 30. It is designed to be inserted into a hole in the housing of the body.

The rod-shaped male body 30 is arranged around the plug 10, and the female member 40 with claws is arranged around the socket 20.

Therefore, when the gripping body 39 is gripped by a robot hand or the like and the plug 10 is inserted into the socket 20, even if the axes of the plug 10 and the socket 20 are slightly misaligned, the rod-shaped male body 30 and the female body with claws 40 are first fitted. Since the axes of the plug 10 and the socket 20 are aligned, the plug 1
0 is easily inserted into the insertion hole 29 of the socket 20,
In a state where the rod-shaped male body 30 and the clawed female body 40 are engaged, the valves 15 and 25 of both the plug 10 and the socket 20 are opened, and the container 1 and the pipe 2 are communicated with each other.

At this time, since the rod-shaped male body 30 is urged toward the tube side by the compression coil spring 35, the rod-shaped male body 30 and the clawed female body 40
The engagement is maintained.

That is, according to the present invention, the plug 102 can be connected to the socket 20 with one touch.

〔Example〕

The present invention will be specifically explained below with reference to the drawings. Note that the same reference numerals indicate the same subjects throughout the figures.

FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a sectional view of the first invention when combined, and FIG. 3 is a rear angle view of the plug side.

In FIG. 1, a plaque 10 of the self-sealing fitting is inserted into the end of the tube 2, and a socket 2 of the self-sealing fitting J is inserted into the end of the tube 2.
0 is fixed to container 1.

The plug 10 has a cylindrical plug body 1 with a valve seat 12 at the tip.
1 and an umbrella-shaped valve 15 installed inside the plug body 11.

To be more specific, the valve holder 1: is installed in the cylinder of the plug body 11, a shaft hole through which the shaft of the valve 15 is inserted is bored in the valve holder 13, and the shaft portion of the valve 15 is inserted into the shaft hole. Then, the valve 1 is placed so that the conical surface of the umbrella portion of the valve 15 faces the valve seat 12.
5 is attached to the plug body 11.

Further, a compression coil spring 1 is provided between the valve 15 and the valve holder 13.
4, the valve 15 is biased toward the valve seat 12, and the conical surface of the valve 15 is brought into contact with the valve seat 12 when not in use, making the plug 10 a self-sealing structure.

A slider plate 32 is attached to the outer periphery of the plug body 11 so as to be slidable in the direction of insertion and removal of the plug 10.

The slider plate 32 is a slider plate having three radial arms as shown in FIG.

The slider vi32 has an axial hole at the center of the boss where the arms are assembled, and by fitting this axial hole into the plug body 11 at a position near the tube 2, it can freely slide in the insertion/extraction direction of the plug 1o. be. Note that a stopper ring is provided at a position of the plug body 11 near the tube 2 to restrict the retreating position of the slider plate 32.

Further, a compression coil spring 35 is attached to the outer periphery of the plug body 11 so as to bias the slider plate 32 rearward, that is, toward the tube 2 side, and so that the slider Fi 32 is engaged with the stopper ring.

At positions equidistant from the tips of the respective arms of this slider plate 32, facing the female body 40 with a claw of 20 examples of sockets to be described later, a female body 40 with a claw is fitted so as to be engageable and releasable.
A rod-shaped male body 30 having a spherical plug head 31 at the tip of the rod is disposed.

Further, in order to grip the plug 0 with a robot hand or the like on the back side of the slider plate 32, a pair of square plate-shaped gripping bodies 39 are fixed at positions facing each other with the plug body 11 interposed therebetween.

On the other hand, the socket 20 has a fitting hole 29 at its tip into which the plug 10 is inserted, a cylindrical socket main body 21 with a valve seat 22 provided at the base of the fitting hole 29, and an umbrella-shaped socket body 21 mounted inside the socket main body 21. It is composed of a valve 25.

Specifically, a valve holder 23 is attached to the rear of the valve seat 22 in the cylinder of the socket body 21, and a shaft hole through which the shaft of the valve 25 is inserted is bored in the valve holder 23. By inserting the shaft portion of the valve 25 into this shaft hole, the valve 25 is inserted into the socket main body 22 so that the conical surface of the cap portion of the valve 25 faces the valve seat 22.
It is attached to.

Further, a compression coil spring 2 is provided between the valve 25 and the valve holder 23.
4, the valve 25 is biased toward the valve seat 22, and when not in use, the conical surface of the valve 25 abuts against the valve seat 22, making the socket 20 a self-sealing structure.

Further, an O-ring 28 is attached to the inner wall of the fitting hole 29 so as to be in close contact with the outer peripheral surface of the plug body 11 in an airtight manner.

A disk-shaped stage 42 is attached to the socket body 21, and female bodies 40 with claws are respectively disposed on the stage 42 at positions facing the rod-shaped male body 30 with the socket body 21 as the center.

The female body 40 with claws includes a desired engagement element inside the housing, and has a pair of claws 41 opening in the shape of an inverted water at the tip of the housing.

The rod-shaped male body 30 and the claw-equipped female body 40 are a widely commercially available one-punch type fitting means that can be freely connected and disconnected.

That is, the plug head 31 of the rod-shaped male body 30 is connected to the female body 40 with claws.
When pushed between the claws 41 of the plug head 31, the claws 41
is inserted into the hole of the housing, and the bar-shaped male body 30 and the female body 40 are engaged with each other. Then, when the rod-shaped male body 30 is pushed deeper into the clawed female body 40 from the engaged state, the engagement is released, and by pulling out the rod-shaped male body 30, the rod-shaped male body 30 can be pulled out from the clawed female body 40. It is configured to come out.

Therefore, when the gripping body 39 is gripped by a robot hand or the like and the plug 10 is inserted into the socket 20, as shown in FIG. When the axes of the plug 10 and the socket 20 match, and the plug 10 is pushed in further, the rod-shaped male body 30 and the female body 40 with claws engage, and the tip of the plug body 11 fits into the insertion hole of the socket 20. 29 and fit together.

In this state, the end surface of the valve 15 of the plug 10 and the socket 20
The end surfaces of the valves 25 are in contact with each other, and the valves 15 and 25 are in contact with each other.
moves backward against the elasticity of the compression coil spring 14 or 24, and the valve 15 is separated from the valve seat 12, and the valve 25 is separated from the valve seat 22.

Therefore, the self-sealing state between the plug 10 and the socket 20 is released, and the pipe 2 and the container 1 are brought into communication.

At this time, since the O-ring 28 is in close contact with the outer circumferential surface of the plug body 11, there is no fear that the fluid flowing through the joint will leak out of the joint.

Further, since the rod-shaped male body 30 is urged toward the tube side by the compression coil spring 35, the engagement between the rod-shaped male body 30 and the female body with claws 40 is maintained.

[Effects of the Invention] As explained above, the present invention can engage and engage with a one-touch operation.
By attaching one rod-shaped male body of the pair of engagement means to be released to the plug side of the self-sealing pipe fitting and the other female body with a claw to the socket side of the self-sealing pipe fitting, it is possible to attach and detach the self-sealing pipe fitting. It is easy to operate, and has excellent practical effects in that attachment and detachment operations can be easily carried out using a robot hand with a simple structure.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention; FIG. 2 is a sectional view of the present invention when combined; Figure 3 is a rear view of the plug side. FIG. 4 is a sectional view of a conventional example. In the figure, 1 is a container, 10 is a plug, 12.22 is the valve seat, 14 and 24 are compression coil springs, 20 is a socket, 27 is a sleeve, 29 is the insertion hole, 30 is a rod-shaped male body, 32 is a slider plate; 39 is a gripping body; 41 is a nail, 42 each indicates a stage. 3I is the plug head, 35 is a compression coil spring; 40 is a female body with claws, 2 is a tube, 11 is the plug body, 13.23 is a valve holder, 15.25 is a valve, 21 is the socket body, 28 is an O-ring, Cross-sectional view of this year's Ming O Dairyi H series sword No. figure , a cross-sectional view of the convenient gate of the present invention Figure 2

Claims (1)

[Claims] A plug (10) of a self-sealing pipe fitting is attached to either the end of the pipe or the container (1), and a socket (20) of the self-sealing pipe fitting is attached to the other side. ) in the socket (20) to connect the pipe (2) and the container (1), the stage (42) attached to the socket body (21);
The stage (4) is centered around the socket body (21).
2) The female body with claws (40) disposed on the top and the plug (10)
) so that the plug body (1
a slider plate (32) attached to the outer periphery of the plug body (1); and a rod-shaped male body arranged around the plug body (11) and fitted into the female body with claws (40) in an engaging/releasing manner. (30
), and a gripper (39) attached to the back side of the slider plate (32).
), and in order to bias the slider plate (32) in the direction of the pipe (2),
A compression coil spring (35) is attached to the outer periphery of the plug body (11), and when the rod-shaped male body (30) is inserted and engaged with the female body with claws (40), the plug (10) ) is plugged into the socket (20) and both valves (15, 25) are opened.