Connector device, and piping device

Abstract

To provide a connection body device capable of performing connection while simply preventing heat insulation loss.SOLUTION: A connection body device 5 comprises: a connection body 3 having a fluid flow path 3a therein; and a heat insulating member 4 covering the connection body 3. The connection body 3 comprises: a body part 7; a first connection part 8 located at one end and connected to a pipe joint 1; and a second connection part 9 located at the other end and connected to a pipe 2. The heat insulating member 4 is provided so as to cover at least the body part 7 so that the first connection part 8 is exposed. On one end side of the connecting body 3, a peripheral wall surrounding the flow path 3a is composed of a double wall 3c sandwiching an air layer 3b. The air layer 3b is sealed, and the double wall 3c extends from a tip portion of the first connection part 8, which is a tip portion on one end side, to a position where it overlaps the heat insulating member 4.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This invention relates to a connecting body device and a piping device used for piping, and particularly relates to heat insulation.

Background Art

[0002] Conventionally, for example, a bent flow path forming member for bending a flow path has been provided between the drain outlet of an air conditioner and a drain pipe (see, for example, Patent Document 1). As shown in FIG. 10, in this bent flow path forming member 23, a connecting body 25 was connected to a main body portion 24 using a connecting nut 26. Therefore, a first pipe body 21 with a covering material 21a (heat insulating material) was connected to the main body portion 24 side of this bent flow path forming member 23, and a second pipe body 22 with a covering material 22a (heat insulating material) was connected to the connecting body 25 side. And the bent flow path forming member 23 including the connecting body 25 was covered with a covering member 27 (heat insulating material).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the conventional bent flow path forming member 23, when a connecting body 25 with a long axial length was used, the covering member 27 could not cover the entire connecting body 25, and the connecting body 25 protruded from the covering member 27, resulting in a heat insulation defect. Therefore, it was necessary to make the length of the covering member 27 on the connecting body 25 side longer in advance, cut the covering member 27 according to the length of the connecting body 25, or cover the connecting body 25 with another heat insulating material, which was troublesome.

[0005] This invention is made to solve the above-mentioned conventional drawbacks, and its object is to provide a connector device and a piping device that can easily prevent heat insulation loss and perform connection.

Means for Solving the Problem

[0006] The connector device and the piping device according to this invention are configured as follows in order to achieve the above object. That is, The connector device according to the invention described in claim 1 includes a connector for piping having a fluid flow passage inside, and a heat insulating member covering the connector. Here, the connector includes a main body portion, a first connection portion connected to a pipe joint on one end side following the main body portion, and a second connection portion connected to a pipe or a pipe joint on the other end side following the main body portion. And the heat insulating member is provided so as to cover at least the main body portion with the first connection portion exposed. Also, on the one end side of the connector, the peripheral wall surrounding the flow passage is composed of a double wall sandwiching an air layer. And the air layer is sealed, and the double wall extends from the tip portion of the first connection portion which is the tip portion of the one end side to a position reaching the heat insulating member or a position overlapping the heat insulating member.

[0007] According to this connector device, the heat insulating member covering the connector covers at least the main body portion with the first connection portion exposed. That is, the first connection portion is not covered with the heat insulating member and is exposed. And the peripheral wall of the first connection portion is formed by a double wall sandwiching an air layer, and the double wall extends from the tip portion of the first connection portion to a position reaching the heat insulating member or a position overlapping the heat insulating member. Therefore, when the first connection portion and the pipe joint are connected, interference between the heat insulating material provided on the pipe joint and the heat insulating member covering the connector can be avoided, and even if the heat insulating material provided on the pipe joint and the heat insulating member covering the connector are separated, the space between them is connected by the double wall sandwiching the air layer, so that heat insulation loss can be prevented.

[0008] Further, the connector device according to the invention described in claim 2 is the connector device according to claim 1, wherein at least a part of the main body portion has a single wall as the peripheral wall surrounding the flow passage, and a transparent viewing portion is provided on the single wall, and the flow passage can be viewed through the viewing portion. By providing the viewing portion on the single wall, the internal flow passage can be easily seen from this viewing portion.

[0009] Further, the connector device according to the invention described in claim 3 is the connector device according to claim 2, wherein the wall thickness of the viewing portion is thinner than the wall thickness of the double wall including the air layer.

[0010] Further, the connector device according to the invention described in claim 4 is the connector device according to claim 2 or 3, wherein the length of the viewing portion in the extending direction of the flow passage is longer than the protruding length of the first connecting portion protruding from the heat insulating member.

[0011] Further, the connector device according to the invention described in claim 5 is the connector device according to any one of claims 1 to 4, wherein the pipe connection port of the pipe joint is fitted to the outer periphery of the first connecting portion, and the first connecting portion and the pipe connection port are connected.

[0012] Further, the connector device according to the invention described in claim 6 is the connector device according to any one of claims 1 to 5, wherein a plurality of display portions for displaying the length are provided on the outer surface of the first connecting portion corresponding to a plurality of different length positions so as to indicate a predetermined length position from the tip.

[0013] Further, the piping device according to the invention described in claim 7 includes the connector device according to any one of claims 1 to 6 and a pipe connected to the second connecting portion of the connector device. Here, the pipe is a coated pipe in which a coating having heat insulating performance is continuously provided in the axial direction, and the heat insulating member covering the connector extends to a position reaching the coating of the coated pipe or beyond the position reaching the coating on the second connecting portion side. Thereby, no heat insulation defect occurs also on the second connecting portion side.

[0014] Further, the piping device according to the invention of claim 8 includes the connector device according to claim 1, a pipe joint connected to the first connection portion of the connector device, and a pipe connected to the second connection portion of the connector device. Here, at least the main body portion of the connector is transparent. The pipe connection port of the pipe joint is fitted on the outer periphery of the first connection portion, and the pipe joint is connected to the first connection portion in a state where relative movement in the axial direction of the first connection portion is restricted. The end face on the first connection portion side of the heat insulating member covering the connector is positioned back from the end face of the pipe connection port. And the pipe is connected to the second connection portion in a state where relative movement in the axial direction of the second connection portion is restricted.

Advantages of the Invention

[0015] According to the connector device and the piping device of this invention, by configuring the first connection portion of the connector with a double wall, heat insulation deficiency can be easily prevented, and a pipe joint can be connected to the first connection portion.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Best Mode for Carrying Out the Invention

[0017] Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[0018] Figs. 1 to 9 show an embodiment of the present invention. In the figures, reference numeral 1 indicates a pipe joint. 2 indicates a pipe. 3 indicates a connecting body for pipes having a fluid flow path 3a inside. 4 indicates a heat insulating member covering the connecting body 3. 5 indicates a connecting body device 5 including the connecting body 3 and the heat insulating member 4. 6 indicates a piping device.

[0019] These connecting body devices 5 and piping devices 6 are used, for example, as piping facilities that form drainage paths, water supply paths, and other fluid flow paths other than water, such as those of air conditioners.

[0020] In the connecting body device 5, the connecting body 3 includes a main body portion 7, a first connecting portion 8 that is connected to the pipe joint 1 and is located on one end side following the main body portion 7, and a second connecting portion 9 that is connected to a pipe or a pipe joint (in the illustrated embodiment, the pipe 2) and is located on the other end side following the main body portion 7. On the other hand, the heat insulating member 4 is provided so as to cover at least the main body portion 7 (in the illustrated embodiment, the main body portion 7 and the second connecting portion 9) with the first connecting portion 8 exposed (that is, the first connecting portion 8 is not covered) with respect to the connecting body 3. That is, at one end side of the connecting body 3, the portion not covered by the heat insulating member 4 becomes the first connecting portion 8.

[0021] Here, the one end side of the connecting body 3 (that is, the one end side where the first connecting portion 8 is located) has a peripheral wall surrounding the flow path 3a formed of a double wall 3c sandwiching an air layer 3b. This air layer 3b is sealed, and the double wall 3c extends from the tip portion of the first connecting portion 8, which is the tip portion of the one end side, to a position reaching the heat insulating member 4 or a position overlapping the heat insulating member 4 (in the illustrated embodiment, a position overlapping the heat insulating member 4).

[0022] In the first connection part 8, the pipe connection port 1a of the pipe joint 1 (that is, the pipe connection port 1a which is a connection port capable of being connected to a pipe) is fitted onto the outer periphery of the first connection part 8 (that is, the first connection part 8 is inserted into the pipe connection port 1a), and the first connection part 8 and the pipe connection port 1a are connected. And as described above, a pipe or a pipe joint (in the illustrated embodiment, the pipe 2) is connected to the second connection part 9. Here, in the illustrated embodiment, the pipe 2 is a coated pipe 201 in which a coating 2b having heat insulation performance is continuously provided in the axial direction of the pipe 2. That is, the pipe 2 is composed of a pipe body 2a and a coating 2b that covers the outer peripheral surface of the pipe body 2a.

[0023] Further, the connector 3 has a transparent visual recognition part (not shown in the figure) for inspecting the flow passage 3a. Specifically, at least a part of the main body part 7 has a single-layer wall 3d as a peripheral wall surrounding the flow passage 3a. Therefore, a transparent visual recognition part is provided on the single-layer wall 3d, and the flow passage 3a can be visually recognized through the visual recognition part. More specifically, the wall thickness of the visual recognition part is thinner than the wall thickness of the double-layer wall 3c including the air layer 3b. And the length of the visual recognition part in the extending direction of the flow passage 3a is longer than the protruding length 8a of the first connection part 8 protruding from the heat insulating member 4.

[0024] Also, on the outer surface of the first connection part 8, a plurality of display parts 8b for displaying the length are provided corresponding to a plurality of different length positions so as to indicate a predetermined length position from the tip.

[0025] The piping device 6 includes a connector device 5 and a pipe 2 connected to the second connection part 9 of the connector device 5 (specifically, the connector 3). Further, in addition to the connector device 5 and the pipe 2, the piping device 6 includes a pipe joint 1 connected to the first connection part 8 of the connector device 5 (specifically, the connector 3).

[0026] Here, at least the main body part 7 (specifically, the entire connector 3) of the connector 3 is transparent. That is, the part of the single-layer wall 3d in the transparent main body part 7 becomes the above-mentioned visual recognition part.

[0027] Then, the pipe connection port 1a of the pipe joint 1 is fitted onto the outer periphery of the first connection part 8 (that is, the first connection part 8 is inserted into the pipe connection port 1a), and the pipe joint 1 is connected to the first connection part 8 in a state where relative movement in the axial direction of the first connection part 8 is restricted. At this time, the end face on the side of the first connection part 8 of the heat insulating member 4 covering the connection body 3 is positioned back from the end face of the pipe connection port 1a. Further, the pipe 2 (specifically, the coated pipe 201) is connected to the second connection part 9 in a state where relative movement in the axial direction of the second connection part 9 is restricted. At this time, the heat insulating member 4 covering the connection body 3 extends to a position reaching the coating 2b of the coated pipe 201 or beyond the position reaching the coating 2b (in the illustrated embodiment, beyond the position reaching the coating 2b).

[0028] Specifically, the connection body 3 is formed linearly such that its axis is a straight line. The first connection part 8 on one end side of the connection body 3 is formed by a double wall 3c, and this double wall 3c extends from the tip part of the first connection part 8 beyond the first connection part 8 and slightly onto the main body part 7. Then, the air layer 3b inside the double wall 3c is blocked by a lid 8c and sealed. The part of the main body part 7 excluding this double wall 3c is a single wall 3d. Further, the second connection part 9 on the other end side of the connection body 3 is composed of an inner cylindrical part 9a, an intermediate cylindrical part 9b, and an outer cylindrical part 9c arranged concentrically.

[0029] The heat insulating member 4 that covers the connecting body 3 has a cylindrical shape that covers the connecting body 3 so as to accommodate it inside, excluding the first connecting portion 8. This heat insulating member 4 is composed of two split bodies 4a, 4a that are half cracked, and these split bodies 4a, 4a are attached to the connecting body 3 so as to sandwich the connecting body 3 from the side. Here, on the outer surface of the connecting body 3 (specifically, the main body portion 7), two bonded portions 3e are formed, and on the inner surface of the heat insulating member 4 (specifically, each split body 4a), a coupling portion 4b that couples with the bonded portion 3e is formed. By the coupling of the bonded portion 3e and the coupling portion 4b, the split body 4a is temporarily held on the connecting body 3 so as not to fall due to its own weight. Also, by the coupling of these bonded portion 3e and the coupling portion 4b, the mounting position of the heat insulating member 4 (each split body 4a) on the connecting body 3 is uniquely determined. As a result, the end position of the heat insulating member 4 on the first connecting portion 8 side is determined and does not shift. In the illustrated embodiment, the bonded portion 3e is composed of a convex portion, and the coupling portion 4b is composed of a concave portion that fits into the convex portion and couples with the convex portion by friction. And a joining member (not shown) such as an adhesive tape or a band is wound around the heat insulating member 4 (specifically, both split bodies 4a, 4a), and the heat insulating member 4 is fixed to the connecting body 3.

[0030] The pipe joint 1 connected to the first connecting portion 8 is formed by covering the joint main body 1b with a heat insulating material 1c. In the illustrated embodiment, the pipe joint 1 is a T-shaped cheese, and the aforementioned pipe connection port 1a is formed at the central branch portion thereof, and the pipe connection port 1a is fitted onto the outer periphery of the first connecting portion 8. And the pipe joint 1 (specifically, the pipe connection port 1a) is fixed to the first connecting portion 8 by, for example, adhesion or the like, and is connected to the first connecting portion 8 in a state where relative movement in the axial direction of the first connecting portion 8 is restricted. Also, pipes 10 are connected to the respective pipe connection ports 1d, 1d at both ends of the T-shaped pipe joint 1. Although not shown, the heat insulating material 1c is composed of two split bodies, similar to the heat insulating member 4 that covers the aforementioned connecting body 3, and is fixed to the joint main body 1b in a similar manner.

[0031] The pipe 2 connected to the second connection part 9 is the coated pipe 201 as described above. The pipe body 2a of the coated pipe 201 is inserted between the inner cylindrical part 9a and the intermediate cylindrical part 9b in the second connection part 9. Similarly, the coating 2b is inserted between the intermediate cylindrical part 9b and the outer cylindrical part 9c in the second connection part 9. Then, the coated pipe 201 is fixed to the second connection part 9 by, for example, adhesion or the like, and is connected to the second connection part 9 in a state where relative movement in the axial direction of the second connection part 9 is restricted.

[0032] Next, the operation and effect of the connector device 5 and the piping device 6 having the above configuration will be described. According to this connector device 5 or piping device 6, the heat insulating member 4 covering the connector 3 covers at least the main body part 7 so that the first connection part 8 is exposed. That is, the first connection part 8 is not covered by the heat insulating member 4 and is exposed. The peripheral wall of the first connection part 8 is formed by the double wall 3c sandwiching the air layer 3b, and the double wall 3c extends from the tip part of the first connection part 8 to a position reaching the heat insulating member 4 or a position overlapping the heat insulating member 4 (in the illustrated embodiment, a position overlapping the heat insulating member 4). Therefore, when the first connection part 8 and the pipe joint 1 (specifically, the pipe connection port 1a) are connected, interference between the heat insulating material 1c provided on the pipe joint 1 and the heat insulating member 4 covering the connector 3 can be avoided. Also, even if the heat insulating material 1c provided on the pipe joint 1 and the heat insulating member 4 covering the connector 3 are separated, the space therebetween is connected by the double wall 3c sandwiching the air layer 3b, so that heat insulation loss can be prevented. That is, according to this connector device 5 or piping device 6, by configuring the first connection part 8 of the connector 3 with the double wall 3c, heat insulation loss can be easily prevented, and the pipe joint 1 can be connected to the first connection part 8.

[0033] In addition, since the double wall 3c sandwiching the air layer 3b is provided between the pipe joint 1 and the heat insulating member 4, by shortening the heat insulating member 4 and increasing the length of the first connection part 8, the insertion length of the first connection part 8 into the pipe joint 1 (specifically, the pipe connection port 1a) can be maximally ensured. Also, even when connected to a pipe joint 1 with a small insertion length of the first connection part 8, connection can be made without causing heat insulation loss.

[0034] Further, the connecting body 3 has a transparent visual inspection portion for inspecting the flow passage 3a. By providing this visual inspection portion on the single wall 3d, the internal flow passage 3a can be easily viewed from this visual inspection portion, and the flow of the fluid in this flow passage 3a can be easily observed. Further, the wall thickness of the visual inspection portion (single wall 3d) is thinner than the wall thickness of the double wall 3c, so that the internal flow passage 3a can be seen more easily from the visual inspection portion. Also, the length of the visual inspection portion is longer than the length of the first connecting portion 8, and this also makes it possible to more easily view the internal flow passage 3a from the visual inspection portion. The inspection of the flow passage 3a is performed before the heat insulating member 4 is attached to the connecting body 3. However, if the heat insulating member 4 is already attached to the connecting body 3, the heat insulating member 4 is removed from the connecting body 3 for inspection. However, even in the case of the heat insulating member 4, if a part or all of it has a transparent visual inspection portion, the flow passage 3a can be inspected without removing the heat insulating member 4 from the connecting body 3, that is, while the heat insulating member 4 is attached to the connecting body 3.

[0035] Further, on the second connection portion 9 side, the heat insulating member 4 extends to a position reaching the covering 2b of the covering pipe 201 or beyond the position reaching the covering 2b (in the illustrated embodiment, beyond the position reaching the covering 2b). Therefore, no heat insulation defect occurs on the second connection portion 9 side either.

[0036] Further, a plurality of display portions 8b for displaying the length from the tip are provided on the first connection portion 8. By these display portions 8b, it is possible to confirm whether the first connection portion 8 is inserted to the required length position with respect to the pipe connection ports 1a of a plurality of types of pipe joints 1 having different lengths of insertion of the first connection portion 8.

[0037] Also, at the factory stage, a piping device 6 in which the connecting body device 5 (specifically, the connecting body 3) and the pipe 2 are connected is set up, and by using this piping device 6 at the site, the workability at the site can be improved.

[0038] Note that the present invention is not limited to the above-described embodiments, and various other modifications are possible. For example, the heat insulation member 4 may be made of a foamed material, or may be a heat insulator having a sealed air layer inside, and its configuration is not particularly limited as long as it has heat insulation performance. Further, although the heat insulation member 4 is detachable from the connector 3, it may be one that cannot be removed once attached.

[0039] Further, the display portion 8b provided in the first connection portion 8 does not have to display a length corresponding to a specific pipe joint 1, and may simply be a scale for grasping the length from the tip.

[0040] Further, the second connection portion 9 does not have to be connected to the pipe 2, and may be connected to a pipe joint, and the pipe joints may be connected by the first connection portion 8 and the second connection portion 9. At this time, the second connection portion 9 may have the same configuration as the first connection portion 8, that is, may be formed by a double wall sandwiching an air layer and connected to a pipe joint.

[0041] Further, the connector 3 does not have to be formed in a straight shape, and for example, the main body portion 7 may be an elbow having a bend.

[0042] Further, the heat insulating material 1c of the pipe joint 1 may be provided integrally with the joint main body 1b, and in particular, may be composed of an air layer of the joint main body 1b.

Explanation of reference numerals

[0043] 1 Pipe joint 1a Pipe connection port 2 Pipe 2b Coating 201 Coated pipe 3 Connector 3a Flow passage 3b Air layer 3c Double wall 3d Single wall 4 Heat insulation member 5 Connector device 6 Pipe device 7 Main body portion 8 First connection portion 8a Protrusion length 8b Display section 9 Second connection section

Claims

1. A connector device comprising a connector for piping having a fluid flow path therein and a heat insulating member covering the connector, wherein the connector includes a main body portion, a first connection portion connected to a pipe joint at one end side following the main body portion, and a second connection portion connected to a pipe or a pipe joint at the other end side following the main body portion, the heat insulating member is provided to cover at least the main body portion such that the first connection portion is exposed, one end side of the connector has a peripheral wall surrounding the flow path formed of a double wall sandwiching an air layer, the air layer is sealed, and the double wall extends from the tip portion of the first connection portion which is the tip portion of the one end side to a position reaching the heat insulating member or a position overlapping the heat insulating member. A connector device.

2. The connector device according to claim 1, wherein at least a part of the main body portion has a peripheral wall surrounding the flow path formed of a single wall, and a transparent visual recognition portion is provided on the single wall, and the flow path can be visually recognized through the visual recognition portion.

3. The connector device according to claim 2, wherein the wall thickness of the visual recognition portion is thinner than the wall thickness of the double wall including the air layer.

4. The connector device according to claim 2 or 3, wherein the length of the visual recognition portion in the extending direction of the flow path is longer than the protruding length of the first connection portion protruding from the heat insulating member.

5. The connector device according to any one of claims 1 to 4, wherein the pipe connection port of the pipe joint is fitted to the outer periphery of the first connection portion, and the first connection portion and the pipe connection port are connected.

6. The connector device according to any one of claims 1 to 5, wherein a plurality of display portions for displaying the length are provided on the outer surface of the first connection portion corresponding to a plurality of different length positions so as to indicate a predetermined length position from the tip.

7. A piping device comprising the connector device according to any one of claims 1 to 6 and a pipe connected to the second connection portion of the connector device, wherein the pipe is a coated pipe having a coating with heat insulating performance continuously provided in the axial direction, and the heat insulating member covering the connector extends to a position reaching the coating of the coated pipe or beyond the position reaching the coating on the second connection portion side. A piping device.

8. A piping device comprising the connector device according to claim 1, a pipe joint connected to the first connection portion of the connector device, and a pipe connected to the second connection portion of the connector device, The connector is at least such that the main body portion is transparent, the pipe connection port of the pipe joint is fitted on the outer periphery of the first connection portion, and the pipe joint is connected to the first connection portion in a state where relative movement in the axial direction of the first connection portion is restricted, the end face on the first connection portion side of the heat insulating member covering the connector is positioned back from the end face of the pipe connection port, the pipe is connected to the second connection portion in a state where relative movement in the axial direction of the second connection portion is restricted, a piping device.

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