JP2846254B2 - Pipe fitting device - Google Patents

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 to be mounted on a mounting target portion of a target device, a target pipe, or the like, and a plug-in capable of engaging / disengaging the pipe joint body. A joint terminal that is connected to open and close the on-off valve at the time of the engagement connection and closes at the time of release and disengagement, and more particularly, to the engagement connection of the joint terminal to the pipe joint body. The present invention relates to an improvement in a pipe joint device capable of preventing the occurrence of a trouble that the joint terminal is blown off by a fluid pressure of a pressurized fluid existing in an internal flow path when the joint terminal is released and separated from a state. It is.

[0002]

2. Description of the Related Art Conventionally, a general pipe joint device of this kind includes a pipe joint body with a built-in on-off valve to be attached to a part to be attached, such as a device to be connected, a pipe, and the like. On the other hand, it is plug-in connected so that it can be engaged and released,
And a joint terminal provided on a fluid pressure utilizing device or the like via a pressure-resistant tube.

[0003] In the conventional pipe joint device having the above configuration, 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. At the time of engagement connection, the on-off valve is opened to receive the pressurized fluid supplied into the pipe joint body on the side of the device utilizing the fluid pressure, etc. To shut off the pressurized fluid.

[0004]

Here, at the present time, the fluid pressure of the pressurized fluid required for fluid pressure utilizing equipment and the like tends to gradually increase. In use, especially when the joint body is released from or detached from the joint body, even if the detached joint terminal is gripped in the palm of an operator, the joint terminal may be in the secondary flow path of the joint body. In other words, because of the fluid pressure remaining in the flow path of the joint terminal including the outside flow path of the on-off valve to be closed, and the fluid pressure remaining in the pressure-resistant tube, the detached joint terminal leaves the palm of the worker. As a result, there is a danger that it will protrude strongly outward together with the pressure-resistant tube, causing various troubles.

[0005] The present invention has been made to solve such a conventional problem.
An object of the present invention is to provide a pipe joint device capable of preventing occurrence of troubles caused by jumping out of the joint body when the joint body is released and separated from the pipe joint body.

[0006]

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

That is, the present invention provides a pipe joint body with a built-in on-off valve, which is mounted on a mounting target portion such as a target device or a target pipe.
A coupling terminal comprising: a coupling terminal that is plugged into the coupling body so as to be able to engage, disengage and disengage, and that opens and closes the on-off valve when engaged and disengages and closes when disengagement and disengagement In the above, a mounting plate having a mounting hole is screwed and fixed to both the mounting target portion and the joint terminal, or both the pipe joint body and the joint terminal, and a mounting ring detachable on at least one side. A pipe joint device comprising: a connecting cable having a required length having a sufficient strength to withstand a fluid pressure and connecting the mounting plates.

[0008] In the configuration of the pipe joint device, mounting and fastening of the end portion of the connecting cable to the mounting target portion side, the pipe joint main body side, and the joint terminal side may be performed by the mounting target portion or A mounting hole of a mounting plate screwed and fixed to at least one of the pipe joint main body and the joint terminal is directly attached at one end and via a detachable attachment ring at the other end, or both. At an end portion of the device through a detachable mounting ring.

[0009]

Therefore, in the pipe joint device of the present invention, the mounting object side or the pipe joint main body side and the joint terminal side are connected using the connecting cable, and the connecting terminal from the pipe joint main body is connected by the connecting cable. At the time of release and departure is restrained.

[0010] The end of the connecting cable can be directly attached to the attachment hole of the attachment plate at one end, via an attachment ring detachable at the other end, or detachable at both ends. By attaching and fixing via a simple mounting ring, the connecting operation of the connecting object side or the pipe joint body side and the joint terminal side by the connecting cable becomes easy.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a pipe joint device according to the present invention will be described below in detail with reference to FIGS.

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

In a first connection mode of the pipe joint device according to the first embodiment, a fitting terminal of a fitting terminal is attached and fixed to a fitting plate of a fitting body to be attached to a target pipe as an attachment target portion. In the second connection mode, the connecting cable attached and fixed to the mounting plate of the joint terminal is once suspended around the target pipe side. , Which are detachably engaged with the connecting cable.

That is, in the configuration of the first embodiment of the apparatus according to the first and second coupling modes shown in FIGS. 1, 2 and 3, reference numeral 11 denotes a target pipe as a mounting target portion, and 21 denotes a target pipe. The on-off valve built-in type pipe joint body 31 that is fixedly attached to the pipe 11 is engaged with the pipe joint body 21.
It is a joint terminal that is plugged in so that it can be released and detached,
Reference numeral 41 denotes a mounting plate in which a mounting hole 42 is formed in a part of the plate surface, 51 denotes a connecting cable having sufficient strength to withstand fluid pressure, and 61 denotes a stopper at a distal end portion of the connecting cable 51. 52
And an opening / closing hook 63 for constantly closing the opening of the hook 62 in a resilient manner.

The target pipe 11 is provided in the internal flow path with a pressurized fluid previously pressurized to a required pressure from a fluid pressurizing source (not shown). In the case of the first embodiment, for example, , Pressurized air (hereinafter, represented by the pressurized air) is supplied, and a T-shaped joint 12 is arranged on the subject 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 a male joint member of the joint terminal 31 described below, which is inside the main body, is plug-in connected. A female joint member to be engaged, an engagement holding / release / separation mechanism, etc., which automatically engages and holds the male joint member to connect and hold, and manually releases and disconnects the connection state. A known configuration having a shutoff valve that is opened and closed by connecting and disconnecting a male joint member, a valve opening and closing mechanism, and the like is used. Reference numeral 22 denotes a release member included in the engagement holding / release / release mechanism for manually releasing the connection state of the male joint member.

The main pipe joint body 21 is screwed and fixed to the T-shaped joint 12 on the target pipe 11 together with the mounting plate 41 in the case of the first coupling mode.
In the case of the connection form, it is directly screwed and fixed, receives the supply of the pressurized air, and is in a disconnected state in which the joint terminal 31 is not plugged in, that is, supplied by closing the shutoff valve. Pressurized air flow is blocked.

As the above-mentioned joint terminal 31, a well-known structure having a male joint member 32 which can be connected to and detached from the female joint member of the pipe joint body 21 as described above is used. I have.

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

On the other hand, the connecting cable 51 having the mounting ring 61 fixed to the distal end thereof has a mounting hole 42 of the mounting plate 41 fixed to the joint terminal 31 in each of the first and second connection modes.
The base end is tied by a stopper 52.

Therefore, in the device configuration according to the first embodiment, in the case of the first connection mode shown in FIG.
A mounting plate 61 in which a mounting ring 61 at the distal end of a connecting cable 51 fixed to the mounting plate 41 is fixed to the pipe joint body 21.
To be detachably engaged with the mounting hole 42 of
By engaging the locking hook 62 against the mounting hole 42 against the elastic force of the opening / closing hook 63, the two are connected to each other. By performing the connecting / disconnecting operation of the connection 31, the protrusion of the joint terminal 31 due to the residual fluid pressure described above can be restrained within the length range of the connecting cable 51 at the time of the disconnection operation, thereby preventing occurrence of an unexpected trouble. It is.

The attachment ring 61 can be removed from the attachment plate 41 by pulling out the locking hook 62 from the attachment hole 42 while keeping the opening / closing hook 63 pushed and opened with a fingertip or the like.

Similarly, in the case of the second connection mode shown in FIG. 3, the mounting ring 61 at the distal end of the connecting cable 51 fixed to the mounting plate 41 of the joint terminal 31 is connected to the target pipe 11,
In other words, a part of the pipe joint body 21 is partially hung on the side of the target pipe 11 to which the pipe joint body 21 is attached, and then removably engaged with the connecting cable 51 to be connected. Is obtained.

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

The pipe joint device according to the second embodiment is the same as the first embodiment except that the mounting plate 4
1 is fixed to the base end of the connecting cable 51, and the connecting cable 5
In this second embodiment, the mounting ring 61 at the distal end of the first embodiment is detachably engaged with the mounting hole 42 of the mounting plate 41 fixed to the joint terminal 31. The same operation and effect as in the first embodiment can be obtained.
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 main body 21 side.

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

In the pipe joint device according to the third embodiment, mounting rings 61 are fixed to both ends of the connecting cable 51 in the structure of the first embodiment, and one mounting ring of the connecting cable 51 is provided. 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 and fixed to the mounting plate 41 of the joint terminal 31. In the third embodiment, the same operation and effect as those of the first embodiment can be obtained.
In the third embodiment, the pipe joint body 21 and the individual joint terminals 31 can be made to correspond to each other simply by providing the connecting cable 51 having the mounting ring 61 fixed to the both ends.

[0028]

As described above in detail in each embodiment, according to the present invention, the pipe joint body to be mounted on the mounting target portion such as the target equipment and the target piping, and the fitting to the pipe joint body are performed. In a pipe joint device having a joint terminal that is detachably plug-in connected, the attachment target and the joint terminal, or between the joint body and the joint terminal, can be detachably attached on at least one side. As described above, the joint terminal is connected and connected by a required length, so that the joint terminal is released from the pipe joint body due to the presence of the connecting cable connecting the fitting object side or the pipe joint body side and the joint terminal side. The protrusion at the time is restrained, and as a result, unexpected troubles due to the protrusion of the joint terminal can be effectively prevented, and at the same time, there are also excellent features such as that the structure can be implemented very simply, easily and inexpensively. Ah .

[0029] The end of the connecting cable can be directly attached to the attachment hole of the attachment plate at one end, via an attachment ring detachable at the other end, or detachable at both ends. When mounting and fastening is performed through a simple mounting ring, the connecting operation between the mounting target portion side or the pipe joint body side and the joint terminal side by the connecting cable can be performed very easily.

[Brief description of the drawings]

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

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

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

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

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Target piping 12 T-joint 21 Pipe joint main body 22 Release member 31 Joint terminal 32 Male joint member 41 Mounting plate 42 Mounting hole 51 Connecting cable 52 Clamp 61 Mounting ring 62 Locking hook 63 Opening / closing hook

Claims (6)

(57) [Claims] An on-off valve type pipe fitting main body mounted on a mounting target portion such as a target device or a target pipe, and a plug-in connection to the fitting main body so as to be able to engage, disengage and disengage. In a 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 disengagement, the mounting target part and the joint terminal, or the pipe joint body and the joint terminal, A mounting plate having mounting holes in both of them is screwed and fixed, and a mounting ring which is detachable on at least one of the sides and has a required length having sufficient strength to withstand fluid pressure is provided by the connecting cable. A pipe joint device wherein plates are connected. 2. The mounting and fixing of the end of the connecting cable to the mounting target portion side, the pipe joint main body side, and the joint terminal side is performed by the mounting target portion or the pipe joint main body and the joint terminal. To the mounting hole of the mounting plate which is screwed and fixed to at least one of the above, directly at one end, via a removable mounting ring at the other end, or detachable mounting at both ends The pipe joint device according to claim 1, wherein the pipe joint device is formed through a ring. 3. An attachment plate screwed and fixed to the joint terminal, one end of the connecting cable is attached and fixed, and a mounting ring attached and fixed to the other end of the connecting cable is attached to the mounting target portion or pipe. 3. The pipe joint device according to claim 1, wherein the pipe joint device is detachably connected to a mounting plate fixed to the joint body. 4. One end of the connecting cable is attached and fixed to a mounting plate screwed and fixed to the joint terminal, and a mounting ring attached and fixed to the other end of the connecting cable is attached to the mounting target portion or The pipe joint device according to claim 1, wherein the pipe joint device is detachably engaged with the connecting cable after being hung on the pipe joint body side. 5. A mounting ring, wherein one end of the connecting cable is fixedly mounted on the mounting target portion or a mounting plate screwed and fixed to the pipe joint body, and the mounting ring fixedly mounted on the other end of the connecting cable. The pipe joint device according to claim 1, wherein the pipe joint device is detachably connected to a joint terminal. 6. An attachment ring to which one end of the connecting cable is attached and fixed to a mounting plate screwed and fixed to the joint terminal, and is attached and fixed to the other end of the connecting cable. The pipe joint device according to claim 1, wherein the mounting ring is detachably connected to the mounting target portion or a mounting plate fixed to the pipe joint body.