JPS5833958B2 - Cantugate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pipe joint that removably connects a socket and a plug, and more particularly to a pipe joint that allows an on-off valve in the socket to be opened in an adjustable manner.

Embodiments of the pipe joint according to the present invention will be described below with reference to the drawings.

The pipe joint is composed of a plug 10 and a socket 20.

A circumferential groove 14 is provided at one end of the outer periphery of the insertion shaft 12 of the plug 10, and the inner optical end 16 of the insertion shaft opens an on-off valve as described later.

The socket 20 includes a first group consisting of a locking member 22, an operation sleeve 24, a front holding body 26, etc., a backing 40, an on-off valve 44 pressurized by a spring 42, a rear holding body 46 containing these, etc. and a second group consisting of:

The ball 22, which is a locking member, is connected to the insertion shaft 1 of the plug 10.
2 is inserted into a tapered hole 30 formed in the inner cylinder 28 of the operating sleeve 24 into which the plug 10 is inserted, and one end of the inner cylinder 28 is fitted into the inner cylinder 28 so that the plug 10 is engaged with the circumferential groove 14 of the plug 10. The other end can protrude from the inner surface of the front holding member 2.
It is engaged in a rolling-out portion 34 having a wedge tapered surface 32 of 6.

A spring 36 is interposed between the operating sleeve 24 and the front holding body 26, and the locking member 22 has a wedge tapered surface 32.
It is forced to protrude in the centripetal direction by the action of

The operation sleeve 24 is moved backward (
When the locking member 22 is moved (leftward in the drawing), this force is released and the locking member 22 can escape into the transfer portion 34.

A pin 70 is embedded in the front end surface of the front holding body 26, and a pullout hole T2 is provided in the opposite front end surface of the operating sleeve 24, so that the operating sleeve 24 can be retracted only when the two are aligned. becomes possible.

The backing 40 includes a rear holding body 46 and a hose nipple 48.
The on-off valve 44 is held under pressure with an adapter 50 having a
is pressed against the backing by a spring 42.

Note that 52 is a sealing ring that provides fluid sealing when the insertion shaft 12 of the plug 10 is inserted.

Now, the front and rear holding bodies 26, 46 of the first group and the second group as described above are rotatably and slidably connected to each other via a linking means.

That is, a spiral groove 54 having a semicircular cross section is provided on the outer circumferential surface of one rear holding body 46, and a ball 58, which is a connecting member, is provided in a through hole 56 formed in the other front holding body 26.
is fitted into and engaged with the spiral groove 54.

Note that 60 is a band that prevents the ball 58 from escaping.

Next, the operating state will be explained.

As shown in the second figure, the pin 70 of the front holding member 26 and the extraction hole 72 of the operating sleeve 24 are aligned, and then the plug 10
When the insertion shaft 12 of the insertion shaft 12 is inserted into the socket 20, one end of the insertion shaft resists the elasticity of the spring 36 and the ball 22 is pushed into the rolling portion 3.
4, the plug is inserted into the socket.

Since the operating sleeve 24 is under the force of the spring 36 and constantly pressurizes the ball 22 in the centripetal direction, the plug 10
When the circumferential groove 14 of the plug 10 is inserted to the position of the ball, the ball moves to automatically lock in the circumferential groove, and the plug 10
and the socket 20 are connected as shown in the third figure.

At this time, the inner end 16 of the plug 10 is not connected to the on-off valve 44, and therefore no fluid flow occurs.

In addition, the operation sleeve 24 is rotated to remove the pin 70 and the extraction hole 72.
If the positional relationship between the socket and the plug 10 is shifted, the operation sleeve 24 will not be able to retreat, and this will serve as a safety device to prevent the socket 20 and the plug 10 from being separated inadvertently.

When the front holding body 26 is rotated in the state shown in the third figure, the balls 58 roll using the spiral grooves 54 as a guide, and the first
The group and the second group approach each other.

In this way, the inner tip 16 of the plug 10 comes into contact with the on-off valve 44 and moves the on-off valve backward against the spring 42, so the opening amount of the on-off valve 44 can be arbitrarily selected. The flow rate can be adjusted freely.

The state shown in the fourth figure shows a state in which the first group and the second group are at their maximum, that is, the on-off valve 44 is at its maximum opening amount.

In the state shown in the fourth figure, if the pin 70 of the safety device and the hole 72 of the operating sleeve 24 are aligned and the operating sleeve is moved backward, the ball 22 will be released from the forced centripetal force by the wedge tapered surface 32 and will move out of the way. 34, the plug 10 is automatically separated from the socket 20 by the spring 42 that pressurizes the on-off valve 44.

Although the embodiments have been described above, the pipe joint of the present invention connects the plug and the socket by locking the locking member in the socket in the circumferential groove provided at one end of the plug, and the on-off valve provided in the socket at the time of connection. is a removable pipe joint that opens the valve body when pressed with the tip of the plug, and the socket has a first group consisting of a locking member, a removable operation sleeve, and a front holder for assembling these, a backing, and a spring pressure. The first group and the second group are rotatable by screwing the front and rear holders together, and the second group is made up of an on-off valve and a rear holder to which these are assembled. When the socket and the plug are in a connected state, the front and rear holders are mutually rotated to change the protrusion position of the tip of the plug relative to the on-off valve, thereby closing the on-off valve or adjusting the opening amount. Since it is characterized by the following, the following effects are produced.

(b) When the fluid pressure is high, it may be difficult to open the valve body just by inserting the plug, but with this joint, the plug can be connected without opening the valve body, and it is easy to slide. Since it is possible to sequentially increase the opening amount of the valve body by operating the linking means, it is suitable for high-pressure fluid couplings.

(b) Furthermore, since the flow rate can be adjusted by operating the sliding interlocking means, there is no need to provide a cock or the like in the piping for this purpose.

(c) Even if the joint is in a fluid-conducting state, by operating the sliding linkage means, the valve body can be closed and fluid continuity can be stopped while the plug and socket remain connected. .

Of course, if used in the state shown in Figure 4, the plug and socket can be attached and detached in the same way as a normal joint.

The illustrated embodiment is an embodiment of the present invention, and various similar embodiments may be adopted without departing from the spirit of the present invention.

[Brief explanation of the drawing]

The drawings show an embodiment of the pipe joint according to the present invention; FIG. 1 is a cross-sectional view in the separated state, FIG. 2 is a cross-sectional view of the main parts showing the operating state when connected, and FIG. FIG. 4 is a cross-sectional view showing a half-connected state, and FIG. 4 is a cross-sectional view of main parts showing a fully connected state. Code explanation, 10...Plug, 26...
Front holding body, 12... Insertion shaft, 40...
・Backing, 14... Circumferential groove, 44...
・On-off valve, 20...Socket, 46...
- Rear holding body, 22... Locking member, 58...
... Connecting member, 24... Operation sleeve.

Claims (1)

[Claims] 1 Connect the plug and socket by locking the locking member in the socket in the circumferential groove provided at one end of the plug, and when connecting, press the on-off valve provided in the socket with the tip of the plug to open the valve body. A pipe joint, wherein the socket consists of a first group consisting of a locking member, an attachment/detachment operation sleeve, and a front holder to which these are assembled, and a backing, a spring-loaded on-off valve, and a rear holder to which these are assembled. The first group and the second group are rotatably and slidably coupled in the axial direction by screwing the front and rear holders together, and the socket and the plug are connected together. A pipe joint characterized in that when in a connected state, the front and rear holders are mutually rotated to change the protruding position of the plug tip relative to the on-off valve, thereby closing the on-off valve or adjusting the opening amount.