JP2018132148A - Connector device connected to pipe body with heat insulation material, drain member for connector, and cover structure for heat insulation material end covering fluid duct - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dew condensation water generated in a connector such as a joint being dripped as droplets in any location while entering a gap between a pipe body and a heat insulation material and flowing along the pipe body, and to prevent the dew condensation water from being infiltrated into the heat insulation material externally packaging the pipe body.SOLUTION: A connector device comprises: a connector 10 connected to a pipe body 40 that is externally packaged by a heat insulation material 41; a drain member 20 including a through-hole 21 that the pipe body 40 penetrates, an annular erected cylinder part 22 enclosing the through-hole 21 and a drain wall 23 extending in a direction along an end face 42 of the heat insulation material 41; and a thermally shrinkable tube 30 which is disposed over the erected cylinder part 22 and the connector 10 extending from the inside of the erected cylinder part 22 to an opposite side of the heat insulation material 41 and is shrunk by heat.SELECTED DRAWING: Figure 3

Description

  The present invention provides a specific location for a connecting body such as a joint connected to a pipe body such as a cold water pipe or a hot water pipe with a heat insulating material sheathed, or a place where the heat insulating material in the pipe body is not sheathed. A connecting body device connected to a pipe body with a heat insulating material, a draining member of the connecting body, and a covering structure of an end portion of the heat insulating material covering the fluid pipe line, which discharges and prevents condensed water from entering the heat insulating material It is about.

  In an air conditioner such as a fan coil unit, cold water or hot water is supplied to an indoor unit in which a heat exchanger, a blower, and an air filter are incorporated, and the temperature is adjusted. Cold water or hot water is produced by an outdoor heat source facility, and is sent to the indoor unit via a pipe body such as a cold water pipe or a hot water pipe. In order to keep the cold water or warm water flowing through the inside of the pipe by heat insulation, the pipe body is covered with a heat insulating material. The pipe body is connected to the indoor unit by a connecting body such as a joint.

  A connecting body such as a joint for temporarily shutting off the flow of water distribution or a joint for drainage is provided in the middle of the pipe for maintenance of the indoor unit. For example, Patent Document 1 discloses a tubular connection body used in this air conditioner. In the drain hose connection structure described in Patent Document 1, a drain hose constituted by an inner layer hose portion and an outer layer heat insulating material portion and a drain drain port are attached via a joint tube portion.

JP2015-105789A

  However, in conventional piping structures, pipes such as cold water pipes and hot water pipes are heat-insulated with heat insulating materials, but connection materials such as joints are heat-insulated due to the complexity of their shapes. When the cold water flows into the pipe body, it is in an exposed state, so that condensation occurs on the connection body that does not have the heat insulation material or the surrounding heat insulation material. There is. When the dew condensation water generated in these members flows to the tube side covered with the heat insulating material, the dew condensation water enters the slight gap between the tube body and the heat insulating material and flows in this gap. In some cases, water droplets were dropped at any point. In addition, the condensed water may enter the inside of the heat insulating material and ooze out at any location, or the heat insulating material may be corroded or generated by the condensed water.

  In addition, in the case of the drain hose connection structure described in Patent Document 1, the joint tube portion that is a connection body is formed of an elbow, the direction of the pipe is changed from the horizontal direction to the vertical direction, and the drain hose with the heat insulating material sheathed is Since it stands up in the vertical direction, even if dew condensation occurs in the joint tube part where the heat insulating material is not sheathed, the condensed water generally does not flow into the gap between the inner layer hose part and the outer layer heat insulating material part. However, when the drain hose is not in such an arrangement position but in a horizontal direction or a downward posture, the condensed water may flow into the gap.

  Therefore, the present invention prevents the condensed water generated in the connection body such as the joint from flowing to the portion of the tubular body covered with the heat insulating material and discharges it at a specific location, thereby allowing the condensed water to be discharged from the tubular body. While flowing into the gap with the heat insulating material and flowing through the tube, it can be prevented from dropping as water droplets at any point, and the condensed water is contained in the heat insulating material covered by the tube. An object of the present invention is to provide a connecting body device that can be prevented from entering, a connecting body device connected to a tubular body with a heat insulating material, a draining member of the connecting body, and a covering structure of an end portion of a heat insulating material that covers a fluid conduit.

The connected body device connected to the tubular body with a heat insulating material according to claim 1, a connected body connected to the tubular body covered with the heat insulating material,
A draining member having a through-hole through which at least one of the tube body and the connection body penetrates, an annular standing tube portion surrounding the through-hole, and a draining wall extending in a direction along an end surface of the heat insulating material;
A heat-shrinkable tube disposed across the upright tube portion and the connecting body extending from the upright tube portion to the opposite side of the heat insulating material, and contracted by heat;
It has.
The connection body apparatus of Claim 2 has a cover part which covers at least one part of the end surface of a heat insulating material so that the perimeter of a through-hole may be surrounded.
In the connected body device according to the third aspect, the covering portion covers the entire end face of the heat insulating material.

Thereby, in the connection body apparatus of Claim 1 thru | or 3, while a heat-shrinkable tube is arrange | positioned ranging over the standing installation cylinder part and connection body of a draining member, a pipe body etc. penetrate the standing installation cylinder part. Since it surrounds the through hole, the drainage point of the condensed water generated in the connection body is specified, and the condensed water falls along the outer surface of the heat shrinkable tube in front of the drain wall, that is, around the connection body side. As a result, the condensed water is prevented from flowing into the gap with the heat insulating material along the outer surface of the tube body, and is prevented from dropping as a water droplet at any point while passing through the gap. . Moreover, since the drain wall is provided in the direction along the end surface of the heat insulating material, it is possible to prevent the condensed water from entering the heat insulating material.
Moreover, when the cover part of Claim 2 covers a part of end surface of a heat insulating material, a cover part and the whole draining member become small.

In the connecting body device according to the fourth aspect, the draining wall is provided with a receiving portion for receiving the end portion of the heat insulating material by press-fitting.
According to a fifth aspect of the present invention, the connecting body device is provided with an abutting annular portion standing on the draining wall toward the heat insulating material and contacting the outer surface of the heat insulating material.
In the connection body device according to the sixth aspect, the edge of the draining wall protrudes beyond the outer surface of the contact annular portion.
According to the fifth and sixth aspects of the present invention, it is possible to prevent the condensed water flowing down in front of the drainage wall, that is, in the vicinity of the connecting body side, from flowing around to the heat insulating material side behind the drainage wall.

In the connection body device according to the seventh aspect, the adhesive layer is provided on the inner surface of the heat shrinkable tube. Thereby, a heat-shrinkable tube can be more firmly fixed across a standing cylinder part and a connection body.
In the connection body device according to the eighth aspect, the inner surface of the standing tube portion is provided with an abutting portion that abuts so that a gap is partially formed between the tube body or the connecting body. Thereby, it is suppressed that the standing cylinder part itself is cooled by the pipe body or the connection body cooled by the cooling water.
According to a ninth aspect of the present invention, the connecting body device is formed such that the standing tube portion restricts the connecting member fitted therein from rotating around the central axis of the standing tube portion.

The draining member of the connection body according to claim 10 includes a tubular body covered with a heat insulating material, a through-hole through which at least one of the connection body connected to the tubular body passes, and an annular standing tube portion surrounding the through-hole. And a drain wall extending in a direction along the end face of the heat insulating material, and a heat shrinkable tube that shrinks by heat is formed so as to straddle the standing tube portion and the connection body.
The draining member of the connection body according to claim 10 has the same configuration as the draining member of the connection body device according to claim 1, and acts in the same manner as the connection body device according to claim 1.

The covering structure of the end portion of the heat insulating material covering the fluid pipe line according to claim 11 includes a through hole through which the fluid pipe line through which the fluid passes, and a covering part covering the end face of the heat insulating material sheathed on the fluid pipe line. A covering member having an annular standing tube portion standing on the opposite side of the heat insulating material so as to surround the through hole,
A heat-shrinkable tube that is disposed across the upright tube portion and the fluid conduit extending from the upright tube portion and contracts by heat;
It has.
The covering structure of the end portion of the heat insulating material covering the fluid pipe line of claim 11 is related to the connection body device of claim 1, and the covering portion and the covering member are the draining wall and draining member of claim 1, respectively. In addition, the fluid pipe line of claim 11 may mean both the pipe body and the connection body in addition to the pipe body of claim 1.

  In the covering structure of the end portion of the heat insulating material covering the fluid pipe line according to claim 12, the space between the covering portion of the covering member and the end surface of the heat insulating material is sealed. As a result, dew condensation occurs when the outside air with moisture flows into the tube side of the fluid conduit from between the cover and the end face of the heat insulating material and is cooled by the cold water flowing in the fluid conduit. Is reliably prevented from dropping at any point in the fluid line.

  In the present invention, a water draining wall is provided, and a heat-shrinkable tube is disposed across the standing tube portion of the draining member and the connecting body, and the standing tube portion has a through-hole through which the tubular body and the like pass. Since it is surrounded, the condensed water generated on the outer surface of the connection body or pipe body is blocked from flowing to the part of the pipe body covered with the heat insulating material, and the condensed water is discharged at a specific location. It can prevent flowing into the gap between the body and the heat insulating material, and can prevent the dew condensation water from entering the heat insulating material sheathed on the pipe body. As a result, it is possible to prevent the dew condensation water from dropping to an unfavorable location and contaminating its peripheral portion. Further, it is possible to prevent the dew condensation water from entering the heat insulating material and seeping out and dropping at any point, and the heat insulating material is prevented from corroding or generating mold.

It is a perspective view of the connection body device of a first embodiment of the present invention. It is a side view of the connection body apparatus of FIG. It is sectional drawing of the connection body apparatus of FIG. It is a principal part expanded sectional view which shows the state which shrunk the heat-shrinkable tube of FIG. It is explanatory drawing explaining the malfunction when the heat contraction tube etc. of FIG. 3 are not provided. 1 shows the draining member of FIG. 1, in which (a) is a perspective view, (b) is a sectional view taken along the line AA of (d), (c) is a side view, and (d) is a front view. The connection body of FIG. 1 is shown, (a) is a perspective view, (b) is a side view. The draining member different from FIG. 1 is shown, (a) is a perspective view, (b) is a front view. It is sectional drawing of the connection body apparatus provided with the draining member of FIG. It is sectional drawing which shows the connection body apparatus of 2nd embodiment of this invention. It is a principal part expanded sectional view which shows the state which shrunk the heat-shrinkable tube of FIG.

<First embodiment>
First, the connection body apparatus connected to the tubular body with a heat insulating material according to the first embodiment of the present invention will be described with reference to FIGS.

  In the air conditioner such as a fan coil unit, the connection body device of the present embodiment is provided at a place where a pipe body such as cold water pipe or hot water pipe for supplying cold water or hot water made by an outdoor heat source facility is connected to the indoor unit. is set up. The tubular body used here is covered with a heat insulating material to keep cold water or hot water flowing through the inside.

  FIGS. 1 to 3 show a state in which a tubular body 40 covered with a heat insulating material 41 is connected to the connection body device 1. The connection body device 1 includes a connection body 10, a draining member 20, and a heat shrinkable tube 30 that contracts by heat. The connection body 10 includes a joint connected to the tube body 40. The draining member 20 includes a through hole 21 through which the tubular body 40 penetrates, an annular standing cylindrical portion 22 surrounding the through hole 21, and a draining wall 23 extending in a direction along the end face 42 of the heat insulating material 41. doing. The heat-shrinkable tube 30 is disposed across the standing tube portion 22 and the connecting body 10 extending from the standing tube portion 22 to the opposite side of the heat insulating material 41. The other end side of the connection body 10 is connected to the fan coil unit main body, which is an indoor unit, but description of that portion is omitted. Hereinafter, each component will be described in detail.

  Specifically, as shown in FIG. 7, the connection body 10 of the present embodiment operates a valve body and a valve body for temporarily interrupting the flow of water distribution during maintenance of the fan coil unit main body or the like. It consists of a joint provided with the operation part 11 which consists of a handle. The connection parts 12 and 13 at both ends of the connection body 10 are both regular octagonal in outer shape and formed in the same size, and female threads are formed on the inner surface. Further, a cylindrical portion 14 having an outer diameter slightly larger than the connecting portions 12 and 13 is formed between the connecting portions 12 and 13 at both ends of the connecting body 10. The connecting body 10 includes the valve body and the operation unit 11 as described above, has a complicated shape, is not covered with a heat insulating material, and the outer surface is exposed. For this reason, when cold water flows, the connection body 10 is cooled and dew condensation tends to occur on the outer surface.

  The tube body 40 is formed of a synthetic resin tube made of vinyl chloride resin or the like, a metal tube or the like, and a heat insulating material 41 made of foamed resin, rubber or the like is coated on the outer surface for heat insulation.

  The draining member 20 is formed in the form shown in FIG. 6 and is integrally formed of synthetic resin. The draining wall 23 constituting the draining member 20 is formed in a disk shape having a constant thickness, and as shown in FIG. 3, the outer diameter is larger than the heat insulating material 41 of the tubular body 40 and the contact annular portion 25 described later. That is, the end edge 23 a of the draining wall 23 protrudes beyond the outer surface of the contact annular portion 25 to the outside.

  A through hole 21 through which the tube body 40 passes is provided concentrically with the drain wall 23 at the center of the drain wall 23, and the inner diameter of the through hole 21 is formed to be approximately the same as the outer diameter of the tube body 40. ing. On the outer peripheral side of the through hole 21, an annular standing tube portion 22 is erected from the surface of the draining wall 23 on the side of the connecting body 10 so as to surround the through hole 21, and its height is Is formed in a size substantially the same as the axial length of the connecting portion 12 on the upright tube portion 22 side, which is one side of the connecting body 10. The upright tube portion 22 is formed in an octagonal tube shape corresponding to the shape of the connection portion 12 on one side of the connection body 10 so that the connection portion 12 of the connection body 10 is tightly fitted therein without rattling. It has become. As a result, the standing tube portion 22 is restricted from rotating the connecting body 10 inserted therein around the central axis of the standing tube portion 22.

  In addition, as shown in FIG. 6, as shown in FIG. 6, the inner surface of the standing tube portion 22 is composed of small protrusions that come into contact with the outer surface of the connection portion 12 so as to partially form a gap. The contact portion 24 is provided so as to protrude in the axial direction along the inner surface of the standing tube portion 22. The contact portion 24 may be formed so as to reach the entire length in the axial direction on the inner surface of the standing tube portion 22 or may be formed only on a part thereof. The contact portion 24 reduces the contact area between the connection portion 12 of the connection body 10 cooled by the cooling water and the standing tube portion 22 and forms an air layer between them. Cooling of the tube section 22 is suppressed. Moreover, the connection part 12 of the connection body 10 is closely inserted in the standing cylinder part 22 without rattling.

  Furthermore, on the back surface 23 b, which is the surface opposite to the standing tube portion 22 in the draining wall 23, the abutting annular portion 25 that abuts the outer surface of the heat insulating material 41 toward the heat insulating material 41 sheathed on the tube body 40. The abutting annular portion 25 constitutes a receiving portion 26 that receives the end portion 43 of the heat insulating material 41 so as to be press-fitted therein. The contact annular portion 25 is formed in a cylindrical shape, is erected integrally with the draining wall 23, slightly decreases in diameter from the base end portion 25a, which is a portion rising from the draining wall 23, toward the distal end opening 25b, and insulates inside. The end portion 43 of the material 41 is press-fitted, and the inner surface of the peripheral portion of the tip opening 25 b is formed so as to contact the outer surface of the heat insulating material 41. After the heat insulating material 41 is press-fitted into the receiving portion 26, the end face 42 at the tip comes into contact with the back surface 23 b of the draining wall 23.

  In addition, as shown in FIG. 3, the space between the back surface 23 b of the draining wall 23 and the end surface 42 of the heat insulating material 41 is hermetically sealed by a sealing material 27 by filling with a caulking agent, a sealing agent or the like, or applying an adhesive. It is sealed.

  The heat-shrinkable tube 30 is disposed across the outer surface of the standing tube portion 22 and the outer surface of the cylindrical portion 14 of the connecting body 10 and contracts by applying heat, and the outer surface of the standing tube portion 22 and the connecting body. It closely contacts the outer surface of the ten cylindrical portions 14.

  Although the heat-shrinkable tube 30 is not shown, an adhesive layer that is thermally melted may be provided on the outer surface of the standing tube portion 22 and the inner surface 31 that is in close contact with the outer surface of the connection body 10 as necessary. . When this adhesive layer is provided on the heat-shrinkable tube 30, the heat-shrinkable tube 30 can be more firmly fixed to the outer surface of the standing tube portion 22 and the outer surface of the connection body 10.

  Here, the water draining member 20 and the water draining wall 23 prevent the condensed water from entering the heat insulating material 41 side, but cover the end surface 42 of the heat insulating material 41. It can also be referred to as a “covering member” and a “covering part”.

  In order to connect the connection body device 1 configured as described above and the tube body 40, the heat-shrinkable tube 30 is extrapolated in advance to the cylindrical portion 14 of the connection body 10, and the connection part 12 on one side of the connection body 10 is connected to the tube body 40. It inserts in the standing cylinder part 22 of the draining member 20 until the front-end | tip contacts the draining wall 23. FIG. Next, the heat insulating material 41 sheathed on the tube body 40 is inserted into the receiving portion 26 in the contact annular portion 25 of the draining member 20 by press-fitting, and the male thread portion 44 of the end portion 43 of the tube body 40 and the connection body 10 are inserted. The connecting portion 12 is screwed to connect the tube body 40 and the connecting body 10. Accordingly, the heat-shrinkable tube 30 is placed on the outer surface of the connecting body 10 across the cylindrical portion 14 and the standing tube portion 22 of the draining member 20. Thereafter, when the heat shrinkable tube 30 is heated, as shown in FIG. 4, the diameter of the heat shrinkable tube 30 is reduced, and the heat shrinkable tube 30 closely contacts the outer surface of the cylindrical portion 14 of the connection body 10 and the outer surface of the standing tube portion 22 of the draining member 20. To do.

  In the present invention, by using the heat shrinkable tube 30, even if the outer surface of the cylindrical portion 14 of the joint of the connection body 10 manufactured by casting is a rough surface with many small irregularities, The heat shrinkable tube 30 is in close contact with the outer surface of the cylindrical portion 14 of the connection body 10 and the outer surface of the standing tube portion 22 of the draining member 20 without any gaps. Therefore, the dew condensation generated on the outer surface of the connection body 10 becomes water and enters between the heat shrinkable tube 30 and the outer surface of the cylindrical portion 14 of the connection body 10 and the outer surface of the standing tube portion 22 of the draining member 20. Is prevented.

Next, the effect | action of the connection body apparatus 1 of this embodiment is demonstrated.
The connecting body device 1 is provided with a draining wall 23, and a heat-shrinkable tube 30 is disposed across the standing tubular portion 22 of the draining member 20 and the connecting body 10, and the standing tubular portion 22 is a tube. Since the body 40 and the like surround the through-hole 21, the condensed water generated on the outer surface of the connection body 10 flows through the through-hole 21 and flows into the portion of the tube body 40 covered with the heat insulating material 41. It prevents and drains to the specific location around the standing cylinder part 22 ahead of the draining wall 23. As a result, the condensed water is further prevented from flowing into the gap between the tube body 40 and the heat insulating material 41, and the condensed water is prevented from entering the heat insulating material 41.

  Here, if the point which provided the heat contraction tube 30 is added, as shown in FIG. 5, if the heat contraction tube 30 is not provided as shown in FIG. 5, dew condensation water will show with the solid line arrow of FIG. Then, it penetrates between the standing tube portion 22 of the draining member 20 and the connecting portion 12 of the connecting body 10 from the outer surface of the cylindrical portion 14 of the connecting body 10 and falls to the outer surface of the tubular body 40 along the draining wall 23. Further, it passes through the through-hole 21 and flows between the tube 40 and the heat insulating material 41 in the left direction in FIG.

  However, in the connection body device 1 of the present embodiment, the heat-shrinkable tube 30 is provided across the standing tube portion 22 and the connection body 10, so that the dew condensation water generated in the connection body 10 is the standing tube portion 22. And the connection portion 12 of the connection body 10, and therefore does not fall on the outer surface of the tube body 40 along the drain wall 23 and passes through the through-hole 21 and the heat insulating material. 41 does not flow between.

  Thereby, it can prevent that the dew condensation water which generate | occur | produced on the outer surface of the connection body 10 falls to the location which is not preferable, and the periphery part becomes dirty. Further, it is possible to prevent the dew condensation water from entering the heat insulating material 41 and seeping out and dropping at any location, and the heat insulating material 41 is prevented from corroding or generating mold.

  Further, the connecting body device 1 is provided with a contact annular portion 25 standing on the back surface 23 b side of the draining wall 23, a receiving portion 26 for receiving the end portion 43 of the heat insulating material 41 is provided therein, and the draining wall 23. Since the end edge 23a protrudes in the vertical direction beyond the outer surface of the contact annular portion 25, the dew condensation water that flows down along the drain wall 23 before the drain wall 23 is a heat insulating material on the back surface 23b side of the drain wall 23. It is possible to prevent wrapping up to 41. And since the edge 23a of the draining wall 23 protrudes beyond the outer surface of the contact annular part 25, the dew condensation water which flowed down along the draining wall 23 is installed in the drain pan from the edge 23a below it. Therefore, the condensed water is led to a specific location and discharged.

  In addition, since the peripheral portion of the tip opening 25b of the contact annular portion 25 is in contact with the outer surface of the heat insulating material 41, the outside air is in the gap between the tip opening 25b of the contact annular portion 25 and the outer surface of the heat insulating material 41. Although it hardly flows in, as shown by the broken line arrow in FIG. 5, even if outside air flows into the gap, there is a caulking between the back surface 23 b of the draining wall 23 and the end surface 42 of the heat insulating material 41. Since it is sealed in an airtight state by filling or bonding with an agent or the like, it is prevented from flowing into the tube body 40 through this gap. For this reason, when outside air flows in between the back surface 23b of the drain wall 23 and the end surface 42 of the heat insulating material 41, and further flows into the tube body 40 and flows along the tube body 40, cold water flows therethrough. It is possible to reliably prevent the occurrence of a problem that the moisture in the outside air is cooled by coming into contact with the outer surface of the tube body 40 and dew condensation occurs on the outer surface of the tube body 40.

  In addition, since the draining wall 23 has a disk shape and covers the entire end face 42 of the heat insulating material 41, even when the draining member 20 is installed at any angle in the circumferential direction with the center of the draining wall 23 as an axis, Condensed water can always be dropped vertically downward around the front of the drain wall 23 and discharged to a certain location.

  By the way, the draining wall 23 of the above embodiment has an outer diameter larger than that of the heat insulating material 41 and the contact annular portion 25 and covers the entire end face 42 of the heat insulating material 41, but is not limited thereto. As shown in FIGS. 8 and 9, the drain wall 23 may be formed to have an outer diameter smaller than that of the heat insulating material 41 and the contact annular portion 25 to cover a part of the end surface 42 of the heat insulating material 41. The draining wall 23 with a small outer diameter shown in FIGS. 8 and 9 is provided with a pair of left and right guide walls 28, 28 protruding at a certain height on the connecting body 10 side at a part of the outer peripheral edge thereof. A discharge path 29 through which condensed water is discharged is provided inside the guide walls 28 and 28. In the draining member 20, the condensed water falling in front of the draining wall 23 or along the draining wall 23 is introduced into a container such as a drain pan (not shown) after being guided to the discharge path 29.

<Second embodiment>
Next, the connection body apparatus 1 of 2nd embodiment of this invention is demonstrated based on FIG.10 and FIG.11. In the connection body device 1 according to the first embodiment, the connection portion 12 of the connection body 10 is inserted into the standing tube portion 22 of the draining member 20, and the heat-shrinkable tube 30 includes the standing tube portion 22 and the cylindrical portion of the connection body 10. 14, the connecting body device 1 according to the second embodiment is configured such that only the tube body 40 is inserted into the standing tube portion 22, and the heat shrinkable tube 30 is connected to the standing tube portion 22. In the point arrange | positioned ranging over the pipe body 40, it differs from the connection body apparatus 1 of 1st embodiment. Therefore, the second embodiment will be described with a focus on differences from the first embodiment.

  As shown in FIG. 10, the connection body 10 of the second embodiment is disposed at a predetermined distance from the standing tube portion 22 of the draining member 20, and the tube body 40 exceeds the standing tube portion 22. It extends to the connecting body 10 and the portion between the standing tube portion 22 and the connecting body 10 is exposed.

  The standing tube portion 22 is formed in a cylindrical shape corresponding to the outer shape of the tubular body 40 having an annular cross section, and the inner diameter is formed substantially the same as the outer diameter of the tubular body 40. That is, the standing tube portion 22 has a smaller diameter than that of the first embodiment, and only the tube body 40 is inserted therein. In addition, the draining wall 23 is formed in the disk shape of fixed thickness similarly to 1st embodiment.

  The heat-shrinkable tube 30 contracts by heating, and comes into close contact with the outer surface of the standing tube portion 22 and the outer surface of the tube body 40 as shown in FIG. In this case, as in the first embodiment, the heat shrinkable tube 30 may be provided with a heat-melting adhesive layer on the inner surface 31 that is a surface in close contact with the standing tube portion 22 and the tube body 40.

  In the second embodiment, as shown in FIG. 10, the end portion 43 of the tube body 40 is exposed to the outside air without the heat insulating material 41 being provided on the portion between the standing tube portion 22 and the connection body 10. Therefore, when cold water flows through the inside of the tube body 40, dew condensation occurs on the exposed portion and the outer surface of the connection body 10. The dew condensation forms dew condensation water, travels along the outer surface of the tube body 40, flows in the left direction in FIG. 10, and tries to enter between the tube body 40 and the heat insulating material 41 through the through hole 21. However, since the heat-shrinkable tube 30 is disposed across the standing tube portion 22 and the tube body 40 and is in close contact with the outer surface of the standing tube portion 22 and the outer surface of the tube body 40, the dew condensation water stands upright with the tube body 40. It is prevented from passing through the through hole 21 from between the tube portion 22 and between the tubular body 40 and the heat insulating material 41, and is prevented from dropping at any point in the middle of the tubular body 40.

  By the way, although the standing cylinder part 22 of said 1st embodiment and 2nd embodiment is each formed in octagon cylinder shape and cylindrical shape, it is not limited to these shapes, The connection body inserted Corresponding to the outer shape of the ten connecting portions 12 and the tube body 40, it is formed in an arbitrary shape such as a square tube shape or a hexagonal tube shape.

Furthermore, the draining wall 23 of the above embodiment is formed in a disk shape having a constant thickness, but is not limited to this shape.
Further, the edge 23a of the draining wall 23 extends outward beyond the outer surface of the contact annular portion 25, but may not protrude from the outer surface.
In addition, the tube body 40 passes through the through hole 21 provided in the draining wall 23, but the tube body 40 is not limited to this, and is connected to the tube body 40 and the end portion 43, although not illustrated. Both of the connecting bodies 10 may be penetrated, or only the connecting body 10 may be penetrated.

  And in the said embodiment, although between the back surface 23b of the draining wall 23 and the end surface 42 of the heat insulating material 41 is sealed by filling or adhesion | attachment with a caulking agent etc., it is good also as what does not seal.

  In addition, the contact annular portion 25 is slightly inclined toward the heat insulating material 41 toward the tip opening 25b side, but is not necessarily inclined.

  Further, the draining member 20 is provided with the contact annular portion 25 on the back surface 23b side of the draining wall 23, and the end portion 43 of the heat insulating material 41 is received in the receiving portion 26 therein, but when the present invention is carried out, The contact annular portion 25 and the receiving portion 26 may not be provided.

  In addition, in each said embodiment, although the heat-shrinkable tube 30 has been arrange | positioned ranging over the standing installation cylinder part 22, the connection body 10, or the pipe body 40, not a heat-shrinkable tube 30, but a strip | belt-shaped sheet | seat is connected, for example. It is good also as what is made to heat and shrink after winding across the cylindrical part 14 grade | etc., And the standing cylinder part 22 of the body 10.

  And in the said embodiment, although the dew condensation water dripped below along the draining wall 23 is received in containers, such as a drain pan installed in the floor surface etc., it showed to FIG.8 and FIG.9 A connection port may be provided at a tip portion extending in a direction away from the through hole 21 such as the discharge passage 29, and a drain pipe may be connected to the connection port to discharge condensed water.

  In addition, although the said embodiment has illustrated the coupling | joint which has a valve body and the operation part 11 as the connection body 10, the connection body 10 of the connection body apparatus 1 of this invention connects these valve bodies and the operation part 11. FIG. The same applies to a joint that is not used but is simply used for connection.

DESCRIPTION OF SYMBOLS 1 Connection body apparatus 26 Receiving part 10 Connection body 27 Sealing material 20 Draining member 30 Heat shrinkable tube 21 Through-hole 31 Inner surface 22 Standing cylinder part 40 Tubing body 23 Draining wall 41 Heat insulating material 23a End edge 42 End surface 24 Contact part 43 End 25 Abutting annular part

Claims (12)

A connection body connected to a tubular body covered with an insulating material;
A draining member having a through-hole through which at least one of the tube body and the connection body penetrates, an annular standing tube portion surrounding the through-hole, and a draining wall extending in a direction along an end surface of the heat insulating material;
A heat-shrinkable tube disposed across the upright tube portion and the connecting body extending from the upright tube portion to the opposite side of the heat insulating material, and contracted by heat;
A connected body device connected to a tubular body with a heat insulating material.   The connected body device connected to the tubular body with a heat insulating material according to claim 1, further comprising a covering portion that covers at least a part of an end face of the heat insulating material so as to surround the entire circumference of the through hole.   The said cover part covers the whole end surface of the said heat insulating material, The connection body apparatus connected to the tubular body with a heat insulating material of Claim 2 characterized by the above-mentioned.   The connection connected to the tubular body with a heat insulating material according to any one of claims 1 to 3, wherein the draining wall is provided with a receiving portion for receiving an end portion of the heat insulating material by press-fitting. Body equipment.   The contact draining wall is provided on the draining wall so as to stand toward the heat insulating material, and is in contact with the outer surface of the heat insulating material. Connected device connected to the tube with heat insulating material.   The connecting device connected to a tubular body with a heat insulating material according to claim 5, wherein an edge of the draining wall protrudes beyond an outer surface of the annular contact portion.   The said heat contraction tube is provided with the contact bonding layer on the inner surface, The connection body apparatus connected to the pipe body with a heat insulating material in any one of Claim 1 thru | or 6 characterized by the above-mentioned.   An abutting portion that abuts on the inner surface of the standing tube portion so as to partially form a gap between the tube body or the connecting body that is fitted into the standing tube portion is provided. A connected body device connected to the tubular body with a heat insulating material according to any one of claims 1 to 7.   The said standing cylinder part is formed so that it may restrict | limit that the said connection body inserted by the inside turns around the central axis of this standing cylinder part. A connected body device connected to the tubular body with a heat insulating material according to claim 8. A through-hole through which at least one of a tubular body covered with a heat insulating material and a connecting body connected to the tubular body passes,
An annular standing tube portion surrounding the through hole;
A drain wall extending in a direction along the end face of the heat insulating material;
With
A draining member for a connection body, characterized in that a heat-shrinkable tube that contracts by heat is disposed so as to straddle the standing tube portion and the connection body. A through-hole through which a fluid pipe through which the fluid flows passes, a cover that covers an end face of the heat-insulating material sheathed on the fluid pipe-line, and an upright side opposite to the heat-insulating material so as to surround the through-hole A covering member having an annular standing tube portion,
A heat-shrinkable tube that is disposed across the upright tube portion and the fluid conduit extending from the upright tube portion and contracts by heat;
A cover structure for an end portion of a heat insulating material covering the fluid pipe line.   The covering structure of the end portion of the heat insulating material covering the fluid conduit according to claim 11, wherein a space between the covering portion of the covering member and the end face of the heat insulating material is sealed.

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