JP3138921B2 - Pipe joint 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 device for connecting a pipe to a pipe, a tank to a pipe, and the like.

[0002]

SUMMARY OF THE INVENTION The present invention relates to a novel pipe joint device in which a connection portion can be washed and a steam seal or a sterile air seal can be performed when a processing liquid (stock solution) flows. The purpose is to provide.

[0003]

In order to achieve the above object, a pipe joint device according to the present invention comprises an A-side pipe having an on-off valve at the joint end and a pipe joint at the joint end. A female connector for connecting to a B-side conduit having an opening / closing valve at the mouth, the female connector being removably fitted to a tip of a joint end of the A / B-side conduit.
A male-side tubular portion is provided, and the male-side tubular portion is inserted into the female-side tubular portion at the end surface of the joint end portion in the A / B-side conduit.
A connecting valve seat portion and a connecting valve body portion are provided so as to be seated when the connection is made to bring the joint ends of the A and B side pipes into a connected state.
Seating connection valve body around joint end in side pipe
From the position to the position where the male tubular part comes off
The female around the female tubular part by the piston provided with a cylinder piston is built for moving
The connecting pipe that slides around the side tubular portions axially deposited, to eliminate the condition or the piecing joint against the tip to the distal end of the connecting tube joint end of the B-side conduit
Equipped with a splicing device for the state and the female-side tubular portion
Connecting the inner surface and the outer surface of the male tubular part to the valve seat for connection and the valve body for connection
It is provided with a port for inlet port and outlet communicating through the space with the form that constitutes a space sealed in the circumferential wall of the female tubular part by the seating of.

[0004]

In the embodiment shown in the drawing, an inward A-side flange-shaped portion 3 is provided at an edge of a joint end portion 2 in an A-side conduit 1 and an inward edge of a joint end portion 5 in a B-side conduit 4 is provided. Inwardly directed B-side flange-shaped portions 6 are provided, and AB-side valve seats 7 and 8 are provided on the inner surfaces of these AB- and flange-shaped portions 3 and 6, respectively. A and B side valve bodies 9 and 10 which are respectively seated and unseated on the A and B side valve seats 7 and 8 are inserted into the joint ends 2 and 5 of the A and B sides. Valve body 9, 10
Of the A and B side pipes 9 and 10 at the respective protruding ends, and a device (not shown) for seating / separating the A and B side valve bodies 9 and 10 at the protruding ends. Further, a female tubular portion 13 is provided at the tip of the joint end portion 2 in the A-side conduit 1, and a male tubular portion 14 is provided at the joint end portion 5 in the B-side conduit 4.
The male-side tubular portion 14 is made air-tight and can be freely inserted and withdrawn, and the male-side tubular portion 14 is provided with a female-side tubular portion on the outer surface of the A-side flange-shaped portion 3 and the outer surface of the B-side flange-shaped portion 6. When it is fully inserted into the part 13, it sits down and the A / B side pipelines 1, 4
Valve seat 15 and valve body 16 for connecting
The connecting valve body 16 is arranged around the joint 2 in the A-side conduit 1 from the seated position to the female / male tubular portions 13, 1.
Cylinder 18 having a built-in piston 17 that moves with a stroke up to the position where the user unseated while inserting 4
And a connecting pipe 19 that slides around the female tubular section 13 in the axial direction around the female tubular section 13 by the above-described piston 17 around the female tubular section 13. A splicing device 20 for joining or canceling the spliced end to the spliced end 5 in the pipe line 4 is provided, and a male side is provided around the connecting valve body 16 in the female tubular portion 13. When inserting the tubular portion 14, the space 21
And the inlet / outlet ports 22 and 23 communicating with the space 21 are provided on the wall surface of the female tubular portion 13.

In the drawings, reference numerals 25 and 26 denote air inlets / outlets for operating the piston 17, 27 and 28 are engaging grooves of the splicing device 20, 29 is a relief hole, 30 is an O-ring, 31
Is a sheet, 32 is a clamp, 33 and 34 are ports 22,
The tube connected to 23 is shown.

In the present invention, the driving for setting the A and B side valve bodies 9 and 10 in the seated / separated state, the driving for moving the piston 17 forward and the rear, and the driving for setting the splicing device to the splicing state or its disengagement state are performed by hydraulic pressure even with an air cylinder. It may be a cylinder, or it may be manually operated.
One can be a moving tank and the other can be a pipe, and both can be pipes.

[0007]

FIG. 1 shows a state in which the A and B both-side valve bodies 9 and 10 are separated from each other in a state where the connection valve body 16 is seated, and the liquid can pass therethrough. The device 20 includes the joint end 5 in the B-side pipe 4 and the connecting pipe 19.
And the piston 17 is located to the left.
FIG. 2 shows a state in which the connecting valve element 16 is unseated by moving the piston 17 to the right after the A and B both-side valve elements 9 and 10 are in the seated state, that is, the male-side tubular part 14 is pulled out halfway. This shows a state in which the liquid is not allowed to pass through, which is present in the female-side tubular portion 13. In this case, the splicing device 20 splics the spliced end 5 of the B-side pipe 4 and the connecting pipe 19. State, and the piston 17 is located to the right. FIG. 3 shows a cut-off state in which the male-side tubular portion 14 is removed from the female-side tubular portion 13 after the joining state by the joining device 20 is canceled when the AB-side valve bodies 9 and 10 are in the seated state. In this case, if the A-side pipeline 1 and / or the B-side pipeline 4 are configured to be repositionable, the positions can be arbitrarily changed.

When the liquid is allowed to pass as shown in FIG. 1, steam or sterile air is introduced into the space 21 from the inlet port 22 at a higher pressure than the liquid is allowed to pass therethrough.
3, and when the liquid is not allowed to pass through as shown in FIG. 2, the cleaning liquid is introduced into the space 21 through the inlet port 23 and is discharged from the outlet port 23 so that the connection ( Connection) can be cleaned.

[0009]

The pipe joint device according to the present invention is constructed as described above, so that the connecting portion can be washed, and a steam seal or a sterile air seal can be used when the processing liquid (stock solution) flows. Can be.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a liquid-permeable state according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which liquid cannot pass therethrough.

FIG. 3 is a cross-sectional view showing a separated state.

FIG. 4 is a sectional view showing a splicing state of the splicing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 A side pipeline 2 Joint end 3 A side flange-like part 4 B side pipeline 5 Joint end 6 B side flange 7 A side valve seat 8 B side valve seat 9 A side valve body 10 B side valve body 13 Female Tubular Portion 14 Male Tubular Portion 15 Connection Valve Seat 16 Connection Valve Body 17 Piston 18 Cylinder 19 Connection Tube 20 Splicing Device 21 Space 22 Inlet Port 23 Outlet Port 25 Air Inlet 26 Air Inlet Outlets 27, 28 Engagement groove 29 Escape hole 30 O-ring 31 Sheet 32 Clamp 33, 34 Tube

Claims (1)

(57) [Claims] 1. A connection between an A-side pipe having an on-off valve at the joint end and an B-side pipe having an on-off valve at the joint end. A female / male tubular portion is provided so as to be removably fitted to the distal end of the joint end of the B-side conduit, and a male-side pipe is provided at the distal end surface of the joint end of the A / B- side conduit.
The connection valve seat portion and the connection valve body portion which are seated when the shape portion is completely inserted into the female-side tubular portion and which connects the joint ends of the A and B-side pipelines to each other. A connecting valve body is provided around the joint end of the A-side conduit from the seated position to the male-side tubular portion.
A cylinder having a built-in piston for moving it up to the middle position is provided, and around the female side tubular portion around the female side tubular portion by the above piston around the female side tubular portion.
The connecting pipe to slide axially deposited, joint against the tip to the distal end of the connecting tube joint end of the B-side conduit
Equipped with a splicing device to make the condition or the condition to cancel the splicing, and the inner surface of the female tubular portion and the outer surface of the male tubular portion.
The surface is formed into a closed space by the seating of the connecting valve seat and the connecting valve body, and inlet and outlet ports communicating through the space are provided on the peripheral wall surface of the female tubular portion. Pipe joint device.