JP3112318U - Joint for cover device of pipe connecting part - Google Patents

Abstract

A recovery container and a recovery tube can be selectively connected to a liquid discharge portion of a cover device, and the cost of the cover device can be reduced.
SOLUTION: A pipe connecting portion 5 connecting two pipes is attached to two pipes so as to cover and have a space portion, and liquid leaking from the pipe connecting portion 5 to the space portion is discharged to the outside. The joint 50 is attached to the cover device 8 having the liquid discharge portion 31. In the joint 50, a mounting hole 51 to be mounted in the liquid discharge portion 31 of the cover device 8 is formed inside the upper portion, and a female screw portion 52 into which the screw portion 61 of the collection container 60 is screwed is formed inside the lower portion. A tube mounting portion 53 to which a recovery tube is mounted is formed inside the female screw portion 52, and a liquid channel 54 communicating with the mounting hole 51 is formed in the tube mounting portion 53.
[Selection] Figure 1

Description

  The present invention relates to a joint used in a cover device for a pipe connecting portion having a function of collecting liquid leaking from a pipe connecting portion connecting the tubes.

Conventionally, patent document 1 and 2 are mentioned as a cover apparatus of a pipe connection part, for example. As an example, the structure of Patent Document 1 will be described with reference to FIGS.
Japanese Patent Laid-Open No. 9-14543 JP 2001-338814 A

  A pipe connecting portion 5 between the connecting flange 2 of the pipe 1 and the connecting flange 4 of the pipe 3 is connected by a bolt / nut 6. A packing 7 is sandwiched between the connecting flanges 2 and 4. The cover device 8 includes a first cover body 10 and a second cover body 20, and is attached to the pipes 1 and 3 so as to cover the pipe connection section 5 with an appropriate space with respect to the pipe connection section 5. It has been.

  The first cover body 10 is formed of a hollow member having an inner peripheral side opened, and is continuously provided on the semicircular arc-shaped peripheral wall portion 11 and both ends of the peripheral wall portion 11 in the axial direction (arrow X direction in FIG. 6). Side wall parts 12 and 12 are provided. Semi-arc-shaped edge frame parts 13 and 13 projecting in the axial direction X are continuously provided on the inner peripheral edges of the side wall parts 12 and 12, and the edge frame parts 13 and 13 are semicircular arc-shaped having a slightly larger diameter. Open end portions 14 and 14 are integrally connected. And the flange parts 15 and 15 are projected on the left and right sides so as to be connected to the peripheral wall part 11, the side wall parts 12 and 12, the edge frame parts 13 and 13, and the open end parts 14 and 14. The flange portions 15 and 15 have ribs 16 and 16 around them, and also have bolt insertion holes 17 at predetermined locations.

  The second cover body 20 is substantially symmetric with the first cover body 10. That is, the second cover body 20 is also made of a hollow member having an inner peripheral side opened, and has a semicircular arc-shaped peripheral wall portion 21 and side wall portions 22, 22 connected to both end edges in the axial direction X of the peripheral wall portion 21. And. Semi-arc-shaped edge frame portions 23, 23 projecting in the axial direction X are connected to the inner peripheral edges of the side wall portions 22, 22, and the edge frame portions 23, 23 have a semicircular arc shape slightly larger in diameter than that. Open end portions 24, 24 are integrally provided continuously. And the flange parts 25 and 25 are projected on the right-and-left each side so that the surrounding wall part 21, the side wall parts 22 and 22, the edge frame parts 23 and 23, and the opening edge parts 24 and 24 may be connected. The flange portions 25, 25 have ribs 26, 26 around them, and have bolt insertion holes 27 ... at predetermined locations.

  A liquid discharge part 31 having a liquid discharge hole 30 for discharge is provided on the peripheral wall part 21 of the second cover body 20. The liquid discharge part 31 is provided at the lowest position of the peripheral wall part 21. The ribs 16 and 16 of the first cover body 10 protrude in the direction of the rear surface side of the flange portions 15 and 15 (downward in FIG. 7), whereas the ribs 26 and 26 of the second cover body 20 are flanges. The portions 25, 25 protrude in the surface side direction (downward in FIG. 7), and the ribs 26, 26 are fitted into the ribs 16, 16.

  The cover device 8 having such a configuration is attached as follows. The first cover body 10 is fitted to the upper half circumference of the pipes 1 and 3 on both sides of the pipe coupling portion 5 so as to straddle the pipe coupling portion 5, and the lower half circumference of the pipes 1 and 3 on both sides of the pipe coupling portion 5 The second cover body 20 is fitted to the portion so as to straddle the pipe connecting portion 5 so that the liquid discharge portion 31 is located at the lowest position. And in the state which sandwiched the rubber packing 40 between the flange part 15 of the 1st cover body 10, and the flange part 25 of the 2nd cover body 20, those flange parts 15 and 25 are bolt insertion holes 17 ... , 27... Are connected by bolts 41... Inserted through the bolts 41. A gap formed between the tubes 1 and 3 and the open end portions 14 and 24 is filled with a caulking agent 43.

  When the cover device 8 is mounted on the pipe connecting portion 5 and placed, even if the liquid flowing through the pipe line leaks from the pipe connecting portion 5, the leaked liquid is caused by the first cover body 10 and the second cover body 20. The liquid collected and collected in the enclosed space can be collected through the liquid discharge hole 30 of the second cover body 20.

  By the way, as shown in Patent Document 2 (the part indicated by reference numeral 8 in FIG. 2 is a pipe connecting part), the pipe connecting part 5 includes a lower pipe connecting part disposed below the installation surface. And an upper pipe connecting portion disposed above the installation surface. In the liquid discharge part of the second cover body of the cover device disposed in the lower pipe connecting part, the collection container can be easily attached and detached, so that the collection container is directly connected. In the liquid discharge part of the second cover body of the cover device arranged in the upper pipe connection part, the liquid discharge part is higher than the installation surface and it is not easy to attach and remove the recovery container. Connected to the collection container through a collection tube.

  The above prior art has a problem that the shape of the liquid discharge portion is different between the case where the recovery container is connected to the liquid discharge portion of the cover device and the case where the recovery tube is connected, and the cost of the cover device is high.

  An object of the present invention is to provide a joint for a cover device of a pipe connecting portion that can selectively connect a recovery container and a recovery tube to a liquid discharge portion of the cover device and can reduce the cost of the cover device.

  Claim 1 of the present invention for solving the above-mentioned problems is attached to the two pipes so as to cover and cover the pipe connecting part connecting the two pipes, and from the pipe connecting part, In the cover device having a liquid discharge portion for discharging the liquid leaked into the space portion to the outside, a mounting hole to be attached to the liquid discharge portion of the cover device is formed inside the upper portion, and inside the lower portion An internal thread portion is formed in which the thread portion of the recovery container is screwed, a tube mounting portion to which a recovery tube is mounted is formed inside the internal thread portion, and a liquid flow path that communicates with the mounting hole in the tube mounting portion Is formed.

  A second aspect of the present invention for solving the above-mentioned problems is that, in the first aspect, the tube mounting portion is formed so as to protrude from an end surface of the female screw portion.

  A third aspect of the present invention for solving the above-mentioned problems is characterized in that, in the first aspect, the thread portion of the mouth portion of the recovery container is screwed into the female thread portion of the joint.

  A third aspect of the present invention for solving the above-mentioned problems is characterized in that, in the first or second aspect, a collection tube is mounted on the tube mounting portion of the joint.

According to claim 1, when the mounting hole of the joint is attached to the liquid discharge portion of the cover device, the screw portion of the collection container is directly screwed into the female thread portion of the joint according to the arrangement height position of the cover device, Alternatively, the collection tube can be attached to the tube attachment portion. That is, by attaching the joint to the liquid discharge portion, the recovery container or the recovery tube can be selectively attached, and the cost of the cover device can be reduced.
According to the second aspect, since the tube mounting portion is formed so as to protrude from the outer peripheral end face of the joint, it is not only easy to mount the recovery tube, but also onto the recovery tube mounted on the protruding portion of the tube mounting portion. This makes it easy to install the fixing band.

  An embodiment of a joint for a cover device of a pipe connecting portion of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 3, the joint 50 has a mounting hole 51 to be mounted on the outer periphery of the liquid discharge portion 31 on the upper inner side, and a thread portion of the mouth of the collection container 60 on the lower inner side. A female screw part 52 is formed in which 61 is screwed. A tube mounting portion 53 to which the collection tube 70 shown in FIG. 2 is mounted is formed on the inner side of the female screw portion 52 so as to protrude from the outer peripheral end surface of the joint 50. As described above, since the tube mounting portion 53 is formed inside the female screw portion 52 into which the screw portion 61 of the recovery container 60 is screwed, the tube mounting portion 53 is large enough to be inserted into the mouth portion of the recovery container 60. It has become. A liquid passage 54 having a smaller diameter than the liquid discharge hole 30 of the second cover body 20 is formed in the tube attachment portion 53, and the attachment hole 51 and the liquid are arranged so that the liquid flows smoothly from the liquid discharge hole 30 to the liquid flow path 54. The channel 54 communicates with the taper hole 55.

  FIG. 4 shows a connector 80 for easily connecting the other end of the collection tube 70 to the collection container 60 when one end of the collection tube 70 is attached to the joint 50 as shown in FIG. An upper portion of the connection tool 80 is formed in a tube mounting portion 81 to which the collection tube 70 is mounted. A lower part of the connection tool 80 is formed to have a smaller diameter than the tube mounting portion 81, and a male screw portion 82 is formed on the outer peripheral portion. Further, a liquid flow path 83 is formed in the connection tool 80 so as to penetrate in the axial direction. A nut 84 is screwed onto the male screw portion 82. In FIG. 2, reference numeral 62 denotes a lid that is screwed into the screw portion 61 of the collection container 60 so as to close the mouth of the collection container 60.

  Next, attachment of the joint 50 and the collection container 60 will be described. When the height of the cover device 8 is close to the installation surface and the recovery container 60 is directly attached to the liquid discharge portion 31 as shown in FIG. The fitting hole 51 of the joint 50 is fitted to the liquid discharge part 31 and the screw part 61 of the collection container 60 is screwed into the female thread part 52 of the joint 50. Alternatively, the collection container 60 is attached to the joint 50 by previously screwing the thread 61 of the collection container 60 into the female thread 52 of the joint 50. Then, the fitting hole 51 of the joint 50 to which the collection container 60 is attached is fitted to the liquid discharge portion 31 and attached. Thereby, the collection container 60 is attached to the liquid discharge part 31. In this case, since the tube mounting portion 53 is inserted into the recovery container 60, the liquid discharged to the liquid discharge hole 30 is recovered into the recovery container 60 through the liquid flow path 54 of the tube mounting portion 53.

  When the location of the cover device 8 is higher and farther than the installation surface, and the recovery container 60 is attached to the liquid discharge portion 31 via the recovery tube 70 as shown in FIG. The male screw portion 82 of the connection tool 80 is passed through the lid 62, and the nut 84 is screwed into the male screw portion 82. Thereby, the lid 62 is fixed to the connector 80. Next, one end of the collection tube 70 is attached to the tube attachment portion 53 of the joint 50, and the other end of the collection tube 70 is attached to the tube attachment portion 81 of the connector 80. Then, the mounting hole 51 of the joint 50 is fitted into the liquid discharge part 31 and mounted, and the screw part 61 of the collection container 60 is screwed into the lid 62. Thereby, the collection container 60 is attached to the liquid discharge part 31 via the collection tube 70. Here, when the tube mounting portion 53 is formed so as to protrude from the outer peripheral end surface of the joint 50, not only the recovery tube 70 is easily mounted but also fixed on the recovery tube 70 mounted on the protruding portion of the tube mounting portion 53. Installation of the band becomes easy.

  As described above, when the mounting hole 51 of the joint 50 is mounted in the liquid discharge portion 31 of the cover device 8, the screw portion 61 of the collection container 60 is connected to the female screw portion 52 of the joint 50 according to the arrangement height position of the cover device 8. The recovery tube 70 can be attached by being screwed directly or attached to the tube attachment portion 53. That is, by attaching the joint 50 to the liquid discharge part 31, the recovery container 60 or the recovery tube 70 can be selectively attached, and the cost of the cover device 8 can be reduced.

It is principal part sectional drawing which shows one Embodiment of the state with which the coupling of this invention was mounted | worn with the cover apparatus of the pipe connection part. It is principal part sectional drawing which shows other embodiment of the state which mounted | wore the cover apparatus of the pipe connection part with the coupling of this invention. One Embodiment of the coupling for cover apparatuses of the pipe connection part of this invention is shown, (a) is a longitudinal cross-sectional view, (b) is a top view, (c) is a bottom view. It is sectional drawing which shows one Embodiment of the connection tool of a collection tube and a collection container. It is a disassembled perspective view of the cover apparatus of a pipe connection part. It is a longitudinal cross-sectional side view which shows the state which attached the cover apparatus to the part of the pipe connection part. It is the sectional view on the AA line of FIG.

Explanation of symbols

1, 3 Pipe 5 Pipe connection part 8 Cover device 30 Liquid discharge hole 31 Liquid discharge part 50 Joint 51 Mounting hole 52 Female thread part 53 Tube mounting part 54 Liquid flow path 60 Collection container 61 Screw part 62 Lid 70 Recovery tube 80 Connector

Claims (4)

  A liquid discharge part that is attached to the two pipes so as to cover and cover the pipe connection part that connects the two pipes, and discharges the liquid leaked from the pipe connection part to the space part to the outside. In the cover device having, a mounting hole to be mounted to the liquid discharge portion of the cover device is formed inside the upper portion, and a female screw portion into which the screw portion of the collection container is screwed is formed inside the lower portion, A tube connection portion cover, wherein a tube attachment portion to which a collection tube is attached is formed inside the female screw portion, and a liquid flow path communicating with the attachment hole is formed in the tube attachment portion. Joint for equipment.   The joint for a cover device of a pipe connecting portion according to claim 1, wherein the tube mounting portion is formed so as to protrude from an outer peripheral end face of the joint.   The joint for a cover device of a pipe connecting portion according to claim 1, wherein a threaded portion of the mouth of the collection container is screwed into the female threaded portion of the joint.   3. The joint for a cover device of a pipe connecting portion according to claim 1, wherein a collection tube is attached to the tube mounting portion of the joint.

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