JPH0882394A - Pipe coupling device - Google Patents

Abstract

PURPOSE: To prevent a coupling body from jumping out from a pipe coupling body by a residual fluid pressure during open release. CONSTITUTION: A pipe coupling device comprises an on-off valve incorporating type pipe coupling body 21 mounted on an object part 11 to be mounted, such as an object device and an object piping; a coupling terminal 31 plug-in- connected to the pipe coupling body 21 in such a manner to be connected through engagement and openably releasable, and open an on-off valve during engagement connection and close the valve during open release. The object part 11 to be mounted and a coupling terminal 31 or the pipe coupling body 21 and the coupling terminal 31 are intercoupled through a coupling wire 51 having a given length so as to be removable at least on one side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe joint body with a built-in on-off valve, which is mounted on a mounting target portion such as a target device and a target pipe, and a plug-in which can be engaged with and disengaged from the pipe joint body. The present invention relates to a pipe joint device configured to include a joint terminal that is connected and that opens and closes an on-off valve when engaged and connected and that closes when released and released. From the state, when the joint terminal is released and released, the improvement of the pipe joint device capable of preventing the occurrence of the trouble that the joint terminal is blown off by the fluid pressure of the pressurized fluid existing in the internal flow path Is.

[0002]

2. Description of the Related Art Conventionally, a general pipe joint device of this type has a pipe joint body with a built-in on-off valve, which is attached to an attachment target portion such as a device to be connected, a pipe, and the like. On the other hand, it is plugged in so that it can be engaged, released and released.
In addition, it is configured with a joint terminal provided in a fluid pressure utilizing device or the like through a pressure resistant tube.

In the conventional pipe joint device having the above construction, as is well known, the male joint member of the joint terminal is plug-in connected to the female joint member in the pipe joint body. When engaging and connecting, the on-off valve is opened to accept the pressurized fluid supplied into the pipe joint body to the fluid pressure utilizing device side, and when released and released, the on-off valve is opened. Is closed to shut off the pressurized fluid.

[0004]

At this point in time, the fluid pressure of the pressurized fluid required for fluid pressure utilizing equipment and the like tends to gradually increase. During its use, especially when the joint body to be detached is released from the joint body, and the joint terminal to be detached is gripped in the palm of the operator, in the secondary side flow passage of the joint body. That is, due to the fluid pressure remaining in the flow path of the joint terminal including the outer flow path of the on-off valve to be closed, and in the pressure resistant tube, the joint terminal to be separated leaves the palm of the operator. Then, there is a risk that it will strongly pop out outward together with the pressure resistant tube, causing various troubles.

The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to:
(EN) Provided is a pipe joint device capable of preventing the occurrence of trouble due to popping out when the joint body is released and separated from the pipe joint body.

[0006]

In order to achieve the above object, the pipe joint device according to the present invention is configured such that both the pipe joint body and the joint terminal are detachably connected by a connecting cable. is there.

That is, the present invention relates to a pipe joint main body having a built-in on-off valve, which is mounted on a mounting target portion such as a target device and a target pipe,
A structure of a pipe joint device, which is plugged into the pipe joint body such that it can be engaged / disengaged / disengaged so as to open the opening / closing valve when engaged / disengaged and close the valve when released / disengaged. In the above, the attachment target portion and the joint terminal, or both of the pipe joint body and the joint terminal are connected by a connecting cord of a required length so that they can be attached and detached on at least one side. Is a pipe joint device.

In addition, in the structure of the pipe joint device, the attachment and fastening of the end portion of the connecting cord to the attachment target portion side, the pipe joint body side, and the joint terminal side is performed by the attachment target portion, or For the mounting hole of the mounting plate fixed to at least one of the pipe joint body and the joint terminal, one end is directly attached to the attachment hole, and the other end is attached via a detachable attachment ring, or both ends are attached. It is characterized in that it is carried out via a mounting ring which can be detached from the part.

[0009]

Therefore, in the pipe joint device of the present invention, the mounting object side, or the pipe joint body side and the joint terminal side are connected using the connecting line, and the connecting line from the pipe joint body is connected by the connecting line. The jumping out at the time of release and release is restrained.

Further, the end portion of the connecting cable can be directly attached to one end portion of the attachment hole of the attachment plate, and the other end portion thereof can be attached or detached via an attachment ring, or both end portions thereof can be attached and detached. By attaching and fixing via the attachment ring, the connecting operation of the attachment target side or the pipe joint body side and the joint terminal side by the connecting cord becomes easy.

[0011]

Embodiments of the pipe joint device according to the present invention will be described below in detail with reference to FIGS.

First Embodiment FIG. 1 is a plan explanatory view showing an outline of a pipe joint device to which a first embodiment of the present invention is applied after a plug-in connection according to a first coupling mode, FIG. FIG. 3B is a plan view and an end view showing the joint terminal with a connecting cord on the connection side taken out of the same as above, and FIG. 3 is the plug-in according to the second joint form of the pipe joint device in the same first embodiment. It is a plane explanatory view showing the outline after connection.

The first coupling mode of the pipe joint device according to the first embodiment is such that the pipe joint body is attached and fixed to the attachment plate of the pipe joint body, which is attached to the target pipe as the attachment target portion. In the second connection mode, the connecting cord attached and fixed to the attachment plate of the joint terminal is temporarily suspended on the target pipe side. , Which is detachably engaged with the connecting rope.

That is, in the structure of the first embodiment device according to the first and second coupling modes shown in FIGS. 1, 2 and 3, 11 is the target pipe as the mounting target part, and 21 is the target pipe. An on-off valve built-in type pipe joint main body fixedly attached to the pipe 11, 31 is engaged and connected to the pipe joint main body 21.
It is a joint terminal that is plugged in so that it can be released and released.
Further, 41 is a mounting plate in which a mounting hole 42 is formed in a part of the plate surface, 51 is a connecting cable having sufficient strength to withstand fluid pressure, and 61 is a metal fitting at the tip of the connecting cable 51. 52
It is a mounting ring known as a so-called eggplant ring, which has a locking hook 62 on the end side and an opening / closing hook 63 that constantly elastically closes the opening of the locking hook 62.

Thus, the target pipe 11 has a pressurized fluid, which has been pressurized to a required pressure in advance from a fluid pressure source (not shown), in the internal flow path. Compressed air (hereinafter, represented by the pressurized air) is supplied, and a T-type joint 12 is arranged on the target pipe 11.

In the case of the structure of the first embodiment, the detailed structure of the pipe joint main body 21 is not shown, but inside the main body, the male joint member of the joint terminal 31 described below is plugged in. A female joint member to be engaged, and an engagement holding / releasing / releasing mechanism that automatically engages and holds the male joint member, and manually releases the connected state to allow disengagement; A known structure having a shutoff valve that is opened / closed by connecting / disconnecting the male joint member, a valve opening / closing mechanism, and the like is used. Reference numeral 22 is a release member included in the engagement holding / releasing / releasing mechanism for manually releasing the connected state of the male joint member.

In the case of the first coupling mode, the main pipe joint body 21 is screwed and fixed together with the mounting plate 41 to the T-shaped joint 12 on the target pipe 11, and the second pipe is also attached.
In the case of the connection form of No. 3, the screw is directly fixed by screwing, the pressurized air is supplied, and the joint terminal 31 is not connected in a plug-in state, that is, the shutoff valve is closed to supply the compressed air. It blocks the flow of pressurized air.

As the joint terminal 31, here also, a well-known structure having the male joint member 32 which can be connected / disconnected as described above to the female joint member of the pipe joint body 21 is used. There is.

The mounting plate 41 is fixed to the main joint terminal 31, and is connected to a fluid pressure utilizing device or the like through a pressure resistant tube (not shown).

On the other hand, the connecting cord 51 having the mounting ring 61 fixed to the tip end thereof has the mounting hole 42 of the mounting plate 41 fixed to the joint terminal 31 in the first and second coupling modes.
The base end is bound with a stopper 52.

Therefore, in the device configuration according to the first embodiment, in the case of the first coupling mode shown in FIG.
The mounting plate 41 in which the mounting ring 61 at the tip of the connecting cord 51 fixed to the mounting plate 41 of No. 1 is fixed to the pipe joint body 21.
Detachably engaging the mounting hole 42 of
By engaging the locking hook 62 with the mounting hole 42 against the elastic force of the open / close hook 63, the two are connected to each other, and in this state, the joint terminal for the pipe joint main body 21. By performing the connecting / disconnecting operation of the connector 31, it is possible to prevent the unexpected trouble from occurring during the disconnecting operation by restraining the protrusion of the joint terminal 31 due to the residual fluid pressure described above within the length range of the connecting cable 51. Of.

To remove the mounting ring 61 from the mounting plate 41, the locking hook 62 may be pulled out from the mounting hole 42 while the open / close hook 63 is kept open with a fingertip or the like.

Similarly, in the case of the second coupling mode shown in FIG. 3, the mounting ring 61 at the tip of the coupling cable 51 fixed to the mounting plate 41 of the joint terminal 31 is connected to the target pipe 11,
That is, the pipe joint main body 21 is partially suspended on the side of the target pipe 11 and then removably engaged with the connecting cord 51 to be connected. Is obtained.

Second Embodiment FIG. 4 is a plan view showing the outline of a pipe joint device to which a second embodiment of the present invention is applied before plug-in connection.

The pipe joint device according to the second embodiment has the same structure as that of the first embodiment except that the mounting plate 4 of the pipe joint main body 21 is used.
1, the base end of the connecting cord 51 is fastened, and the connecting cord 5
The mounting ring 61 at the tip end of No. 1 is detachably engaged with and coupled to the mounting hole 42 of the mounting plate 41 fixed to the joint terminal 31. In the case of the second embodiment as well, In addition to the same operational effects as in the case of the first embodiment,
In the second embodiment, it is possible to correspond to the individual joint terminals 31 only by providing the connecting cable 51 only on the pipe joint body 21 side.

Third Embodiment FIG. 5 is an explanatory plan view showing an outline of a pipe joint device to which a third embodiment of the present invention is applied before plug-in connection.

In the pipe joint device according to the third embodiment, in the construction of the first embodiment, mounting rings 61 are fixed to both ends of the connecting cable 51, respectively, and one mounting ring of the connecting cable 51 is attached. 61 is detachably engaged with and fixed to the mounting plate 41 of the pipe joint body 21, and the other mounting ring 61 is detachably engaged with and fixed to the mounting plate 41 of the joint terminal 31. Therefore, in the case of the third embodiment, in addition to the same operational effects as in the case of the first embodiment,
In the third embodiment, it is possible to make the pipe joint body 21 and the individual joint terminals 31 correspond to each other only by providing the connecting cords 51 having the attachment rings 61 fixed to the both ends.

[0028]

As described above in detail with reference to the embodiments, according to the present invention, the pipe joint main body to be attached to the attachment target portion such as the target device and the target pipe is engaged with the pipe joint main body. -In a pipe joint device including a joint terminal that is detachably plugged in, at least one of the fitting target portion and the joint terminal, or both the joint body and the joint terminal can be detachably attached. As described above, the connection terminal is released from the pipe joint body by the presence of the connection cord that connects the fitting target side or the pipe joint body side with the joint terminal side. As a result, the unexpected protrusion due to the protrusion of the joint terminal can be effectively prevented, and at the same time, the excellent features such as the structurally extremely simple, easy and inexpensive implementation can be achieved. Ah .

The end of the connecting cable can be directly attached to one end of the attachment hole of the attachment plate, and the other end can be attached or detached via an attachment ring, or both ends can be attached or detached. When attaching and fixing via the attachment ring, it is possible to easily perform the connecting operation between the attachment target portion side by the connecting cable or the pipe joint body side and the joint terminal side.

[Brief description of drawings]

FIG. 1 is a plan explanatory view showing an outline of a pipe joint device to which a first embodiment of the present invention is applied, after a plug-in connection by a first coupling mode.

2 (a) and 2 (b) are a plan view and an end view showing a joint terminal with a connecting cable, which is a connection side of the first embodiment, taken out.

FIG. 3 is an explanatory plan view showing the outline after the plug-in connection by the second coupling mode of the pipe joint device according to the first embodiment.

FIG. 4 is an explanatory plan view showing an outline of a pipe joint device to which a second embodiment of the present invention has been applied before plug-in connection.

FIG. 5 is an explanatory plan view showing an outline of a pipe joint device to which a third embodiment of the present invention has been applied before plug-in connection.

[Explanation of symbols]

 11 Target pipe 12 T-type joint 21 Pipe joint body 22 Release member 31 Joint terminal 32 Male type joint member 41 Mounting plate 42 Mounting hole 51 Coupling rope 52 Stopper 61 Mounting ring 62 Locking hook 63 Opening / closing hook

Claims (6)

[Claims] 1. An on-off valve built-in type pipe joint main body to be attached to an attachment target part such as target equipment and target pipe, and a plug-in connection to the pipe joint main body so as to be engageable with and disengageable from each other, In the configuration of a pipe joint device including a joint terminal that opens the on-off valve at the time of engagement connection and closes at the time of release and release, the mounting target portion and the joint terminal, or the pipe joint body and the joint terminal. The pipe coupling device is characterized in that the two are connected by a connecting cable of a required length so that they can be attached and detached at least on one side. 2. The attachment target portion, or the pipe joint body side, and the attachment / fixation of the end portion of the coupling line to the joint terminal side are the attachment target portion, or the pipe joint body and the joint terminal. To the mounting hole of the mounting plate fixed to at least one of the two, either directly at one end and via a removable mounting ring at the other end, or at both ends with removable mounting rings. The pipe joint device according to claim 1, wherein the pipe joint device is formed via a pipe. 3. An attachment plate fixed to the joint terminal is attached and fixed to one end of the connecting rope, and an attaching ring attached and fixed to the other end of the connecting rope is attached to the attachment target portion or the pipe joint body. 3. The pipe joint device according to claim 1, wherein the pipe joint device is detachably connected to a mounting plate fixed to. 4. One end of the connecting cable is attached and fixed to a mounting plate fixed to the joint terminal, and a mounting ring attached and fixed to the other end of the connecting cable is attached to the attachment target side or the pipe joint. The pipe joint device according to claim 1, wherein the pipe joint device is detachably engaged with the connecting rope after being suspended from the main body side. 5. An end portion of the connecting rope is attached and fixed to the attachment target portion or an attachment plate fixed to the pipe joint body,
2. An attachment ring, which is attached and fixed to the other end of the connecting cord, is detachably attached to the joint terminal.
The pipe joint device according to item 2. 6. A mounting ring, wherein one end of the connecting cable is attached and fixed to a mounting plate fixed to the joint terminal, is detachably connected, and is attached to the other end of the connecting cable. The pipe joint device according to claim 1, wherein the ring is detachably coupled to the attachment target portion or a mounting plate fixed to the pipe joint body.