WO2020121870A1

WO2020121870A1 - Piping system, piping information system, and pipe joint system

Info

Publication number: WO2020121870A1
Application number: PCT/JP2019/047046
Authority: WO
Inventors: 高橋　薫
Original assignee: 株式会社ブリヂストン
Priority date: 2018-12-14
Filing date: 2019-12-02
Publication date: 2020-06-18
Also published as: JPWO2020121870A1; TW202040046A; CN113195954A

Abstract

This piping system comprises a pipe-form body, a pipe joint in which an insertion space is formed for inserting the pipe-form body from one side in an axial direction, and a position sensor unit provided either to the pipe joint or to both the pipe joint and the pipe-form body and configured so as to be capable of detecting the axial position of the pipe-form body within the insertion space either continuously or in one or more stages.

Description

Piping system, piping information system, and pipe fitting system

The present invention relates to a piping system, a piping information system, and a pipe joint system used for piping for water supply, hot water supply, and the like.
The present application claims priority based on Japanese Patent Application No. 2018-234282 filed in Japan on December 14, 2018, the entire content of which is incorporated herein by reference.

As a conventional pipe joint, there is one that is configured to be connected to a tubular body by inserting the tubular body (for example, Patent Document 1). In such a pipe joint, the state of connection with the tubular body is generally checked visually.

Japanese Patent Laid-Open No. 2012-2255

However, in the above-mentioned pipe joint, there was a problem that, for example, when the pipe joint was arranged at a position where it was difficult to see, the confirmation work became difficult. Therefore, there has been a demand for a technique capable of confirming the connection state between the tubular body and the pipe joint by a method other than visual inspection.

The purpose of the present invention is to provide a piping system, a piping information system, and a pipe joint system that can confirm the connection state between a tubular body and a pipe joint without visual inspection.

The piping system of the present invention is
A tubular body,
An insertion space for inserting the tubular body from one side in the axial direction is formed, and a pipe joint,
Provided to the pipe joint or to both the pipe joint and the tubular body, the axial position of the tubular body in the insertion space, in one or more stages, or continuously, A position sensor unit configured to detect,
Is equipped with.

The piping information system of the present invention is
With the above piping system,
A receiving device configured to receive the position detection information from the position sensor unit,
Is equipped with.

The pipe fitting system of the present invention is
A pipe joint in which an insertion space for inserting the tubular body from one side in the axial direction is formed,
A position sensor unit provided in the pipe joint and configured to detect the axial direction position of the tubular body in the insertion space at one or more stages, or continuously, and a position sensor unit,
Is equipped with.

According to the present invention, it is possible to provide a piping system, a piping information system, and a pipe joint system, which can confirm the connection state between the tubular body and the pipe joint without visual inspection.

It is a partial cross-sectional side view which shows the piping system which concerns on 1st Embodiment of this invention, and the pipe joint system which concerns on 1st Embodiment of this invention with a functional block. It is sectional drawing which expands and shows a part of pipe fitting system of FIG. The connection state between the tubular body and the pipe joint in FIG. 1 is shown in three stages. FIG. 3(a) shows an appropriate state, FIG. 3(b) shows an inspection required state, and FIG. 3(c) shows an immediate required state. , Respectively. It is a partial cross-sectional side view which shows the piping system which concerns on 2nd Embodiment of this invention, and the pipe joint system which concerns on 2nd Embodiment of this invention with a functional block. The connection state between the tubular body and the pipe joint in FIG. 4 is shown in three stages. FIG. 5(a) shows an appropriate state, FIG. 5(b) shows an inspection required state, and FIG. 5(c) shows an immediate response state. , Respectively. It is a partial cross-sectional side view which shows the piping system which concerns on 3rd Embodiment of this invention, and the pipe joint system which concerns on 3rd Embodiment of this invention with a functional block. It is sectional drawing which expands and shows a part of piping system which concerns on 4th Embodiment of this invention. It is sectional drawing which expands and shows a part of FIG. It is a perspective view which shows the piping system of FIG. It is a schematic diagram showing roughly the piping information system concerning a 1st embodiment of the present invention which can be provided with a piping system concerning any embodiment of the present invention. It is a schematic diagram showing roughly a piping information system concerning a 2nd embodiment of the present invention which can be provided with a piping system concerning any embodiment of the present invention.

INDUSTRIAL APPLICABILITY The pipe system, the pipe information system, and the pipe joint system of the present invention can be suitably used for pipes for water supply, hot water supply, and the like.
Embodiments of a piping system, a piping information system, and a pipe joint system according to the present invention will be exemplified and described below with reference to the drawings. The same reference numerals are given to common constituent elements in each drawing.

[Piping system, pipe fitting system]
First, an embodiment of a piping system of the present invention and an embodiment of a pipe joint system of the present invention will be described with reference to FIGS. 1 to 6.

-First embodiment-
1 to 3 are drawings for explaining a piping system 6 according to a first embodiment of the present invention and a pipe joint system 8 according to the first embodiment of the present invention.
The pipe joint system 8 of the present embodiment includes a pipe joint 1, a position sensor unit 3, and a water leak sensor unit 4.
The piping system 6 of the present embodiment includes a pipe joint system 8 (therefore, the pipe joint 1, the position sensor unit 3, and the water leakage sensor unit 4), the tubular body 2, and the detected unit 5.

1 and 2 show a state before the tubular body 2 is inserted into the pipe joint 1. 1, the upper side with respect to the pipe axis O of the pipe joint 1 shows a cross section along the axial direction of the pipe joint 1, and the lower side with respect to the pipe axis O shows the side face of the pipe joint 1. .. FIG. 2 shows a part of FIG. 1 in an enlarged manner.
In the present specification, the pipe axis O of the pipe joint 1 is the central axis line of the pipe line defined inside the pipe joint 1. The axial direction of the pipe joint 1 is a direction parallel to the pipe axis O of the pipe joint 1. In addition, in the present specification, a direction perpendicular to the axial direction of the pipe joint 1 is referred to as a “perpendicular direction”. Further, in the present specification, the “inner peripheral side” of the pipe joint 1 refers to the side closer to the pipe axis O of the pipe joint 1, and the “outer peripheral side” of the pipe joint 1 is far from the pipe axis O of the pipe joint 1. Insert the side.

In the present example, an insertion connection port 30 configured to be connected to the tubular body 2 by inserting the tubular body 2 from one axial side is formed on one axial side of the pipe joint 1. There is. The tubular body 2 connected to the insertion connection port 30 is, for example, preferably a resin pipe, and particularly preferably a polybutene or cross-linked polyethylene water supply/hot water supply pipe.
Hereinafter, for convenience of description, the inlet side (one side in the axial direction; the left side in FIGS. 1 and 2) of the plug connection port 30 on both sides in the axial direction of the pipe joint 1 is referred to as “the first side in the axial direction”. The rear side of the plug connection port 30 (the other side in the axial direction; the right side in FIGS. 1 and 2) is referred to as the “second side in the axial direction”.
In the example of FIGS. 1 and 2, the pipe joint 1 is configured in a substantially I-shape (the entire shape is a straight line). However, the pipe joint 1 may be configured in any shape such as a substantially L-shape, a substantially T-shape, a substantially Y-shape, and a substantially cross shape.
Further, in the example of the drawing, the pipe joint 1 has only one insertion connection port 30, but the pipe joint 1 may have a plurality of insertion connection ports 30.

The pipe joint 1 of this example includes a main body member 17, an outer cylinder member 15, a sealing member 14, a cap 11, a lock claw 13, and a resin ring 12.

The main body member 17 is formed in a tubular shape, and an inner peripheral surface thereof defines a pipe line (flow passage) for a fluid such as water or hot water. The body member 17 is made of, for example, metal (for example, brass) or resin.
As shown in FIGS. 1 and 2, the main body member 17 of the present example has an axial first side portion 171 located on the axial first side and an axial second side portion 172 located on the axial second side. And an axial intermediate portion 176 located between the axial first side portion 171 and the axial second side portion 172.
The axially first side portion 171 of the main body member 17 constitutes an inner cylinder portion (hereinafter, also referred to as “inner cylinder portion 171”). The outer cylinder member 15 is arranged on the outer peripheral side of the main body member 17. More specifically, the axial second side portion 152 of the outer tubular member 15 is fitted into the outer peripheral surface of the main body member 17. Further, in the outer cylinder member 15, the extending portion 151 extending from the second axial side portion 152 to the first axial direction side is separated from the inner cylindrical portion 171 of the main body member 17 on the outer peripheral side, Part (hereinafter, also referred to as “outer cylinder part 151 ”). An annular insertion space 16 is defined between the outer peripheral surface of the inner tubular portion 171 of the main body member 17 and the inner peripheral surface of the outer tubular portion 151 of the outer tubular member 15. The insertion space 16 is open on the first side in the axial direction and closed on the second side in the axial direction, and the tubular body 2 is configured to be inserted from the first side in the axial direction to the second side in the axial direction.

In this specification, the direction in which the tubular body 2 is inserted into the insertion space 16, that is, the direction from the first axial direction side to the second axial direction side along the axial direction is referred to as the "insertion direction ID", and the tubular body The direction in which 2 is pulled out from the insertion space 16, that is, the direction from the axial second side to the axial first side along the axial direction is referred to as the “pulling direction PD”.

The inner cylinder portion 171, the sealing member 14, the outer cylinder portion 151, the cap 11, the lock claw 13, and the resin ring 12 form a plug connection port 30 (FIG. 2).
One insertion space 16 is formed for each insertion connection port 30. If the pipe joint 1 has a plurality of insertion connection ports 30, one insertion space 16 is formed in each insertion connection port 30.

In the present example, as shown in FIG. 1, the axial second side portion 172 of the main body member 17 is formed with a threaded portion 172a formed of a tapered male screw or a parallel male screw on the outer peripheral surface thereof. It is configured to be connectable by screwing with a pipe member (not shown) having an internal thread or a parallel internal thread. However, the present invention is not limited to the example shown in the drawings, and the axial second side portion 172 has a threaded portion 172a formed of a taper female thread or a parallel female thread formed on the inner peripheral surface thereof to form a tapered male thread or a parallel male thread. It may be configured to be connectable by screwing with a pipe member (not shown) included therein. Alternatively, also in the axial second side portion 172 of the main body member 17, the insertion connection port 30 may be configured similarly to the axial first side portion 171 of the present example.
In this example, as shown in FIG. 2, the axial intermediate portion 176 of the main body member 17 has a torque input portion 173, a small diameter portion 174, and a small-diameter portion 174 in order from the axial second side toward the axial first side. It has a large diameter portion 175. The outer peripheral surface of the torque input portion 173 of the main body member 17 has a substantially polygonal shape (generally a hexagonal shape in the example of the drawing) in the direction perpendicular to the axis, whereby the torque from a tool such as a wrench (spanner) is firmly secured. It is configured for input. The small diameter portion 174 of the main body member 17 has a smaller outer diameter than the torque input portion 173 and the large diameter portion 175. The axial second side portion 152 of the outer tubular member 15 is fitted onto the outer peripheral surface of the small diameter portion 174 of the main body member 17 by press fitting, and is axially formed by the torque input portion 173 and the large diameter portion 175 of the main body member 17. Movement is regulated. The large-diameter portion 175 of the main body member 17 has a larger outer diameter than the axially first side portion (inner tubular portion) 171 of the main body member 17. The end surface of the large diameter portion 175 on the first side in the axial direction partitions the end of the insertion space 16 on the second side in the axial direction.
FIG. 3A shows a state in which the tubular body 2 is inserted into the pipe joint 1 of FIGS. 1 and 2. When the tubular body 2 is inserted into the insertion space 16, the tubular body 2 hits the large-diameter portion 175, thereby restricting further movement in the insertion direction ID.
The main body member 17 may not have the torque input portion 173 (FIG. 2).

As shown in FIG. 2, in the present example, the inner cylindrical portion 171 of the main body member 17 is provided with one or a plurality of annular grooves 171a extending in the circumferential direction on the outer peripheral surface thereof. In the illustrated example, the two annular grooves 171a are provided at different axial positions, but the number of the annular grooves 171a may be only one, or may be three or more. In the example of the drawing, the annular groove 171a is located in the middle of the insertion space 16 in the axial direction and at the axial position overlapping the outer tubular portion 151 of the outer tubular member 15. An annular sealing member 14 extending in the circumferential direction is housed in each annular groove 171a. The sealing member 14 is composed of, for example, an O-ring. The outer cylinder part 151 faces each annular groove 171a and each sealing member 14 in the radial direction.
As shown in FIG. 2, in the state where the tubular body 2 is not inserted into the insertion space 16, the outer diameter of the sealing member 14 is slightly larger than the outer diameter of the inner cylindrical portion 171 of the main body member 17. There is. As shown in FIG. 3A, when the tubular body 2 is inserted into the insertion space 16, the sealing member 14 is compressed and deformed so as to be in close contact with the inner peripheral surface of the tubular body 2, and the inner tubular portion 171. The outer peripheral surface and the inner peripheral surface of the tubular body 2 are fluid-tightly sealed.

The outer cylinder member 15 is a ring-shaped member having a cylindrical shape, and is arranged on the outer peripheral side of the main body member 17 and the inner peripheral side of the cap 11. The outer cylinder member 15 is made of resin, for example. The outer cylinder member 15 is preferably made of a transparent resin (for example, transparent nylon), but may be made of an opaque resin.
As shown in FIG. 2, the axial second side portion 152 of the outer tubular member 15 has an inner diameter smaller than the inner diameter of the extending portion 151 of the outer tubular member 15, and has a large diameter of the main body member 17. It is smaller than the outer diameter of the portion 175.
The extended portion (outer cylinder portion) 151 of the outer cylinder member 15 is located adjacent to the outer peripheral side of the insertion space 16, in other words, defines the outer peripheral side end of the insertion space 16. The extended portion (outer cylinder portion) 151 of the outer cylinder member 15 has a stopper projection 151c formed on the outer peripheral surface thereof and formed of a projection extending in the circumferential direction. In the illustrated example, the stopper protrusion 151c of the outer tubular member 15 is located on the first side in the axial direction with respect to the large diameter portion 175 of the main body member 17. In the illustrated example, the stopper protrusion 151c extends over the entire circumference, that is, is formed in an annular shape. Further, on the outer peripheral surface of the extending portion (outer cylinder portion) 151 of the outer cylinder member 15, a pair of fittings each formed of a protrusion extending in the circumferential direction on the first side in the axial direction with respect to the stopper projection 151c. The

protrusions

151a and 151b are formed at different axial positions. In the illustrated example, the

fitting protrusions

151a and 151b each extend over the entire circumference, that is, are formed in an annular shape.

The cap 11 is made of, for example, a resin, has a tubular shape, and is provided on the outer peripheral side of the inner tubular portion 171 of the main body member 17. As shown in FIG. 2, the second axial direction side portion 112 of the cap 11 is a portion of the extended portion (outer tubular portion) 151 of the outer tubular member 15 that is on the axial first side of the stopper projection 151c. It is press-fitted onto the outer peripheral surface.
The end surface of the cap 11 on the second side in the axial direction hits the stopper protrusion 151c of the outer tubular member 15, whereby the further movement toward the second side in the axial direction is restricted.
On the inner peripheral surface of the axial second side portion 112 of the cap 11, a pair of

fitting recesses

112a and 112b each formed of a groove extending in the circumferential direction are formed at different axial positions. In the illustrated example, the

fitting recesses

112a and 112b each extend over the entire circumference, that is, are formed in an annular shape. The

fitting recesses

112a and 112b of the cap 11 are fitted to the

fitting protrusions

151a and 151b of the outer tubular member 15, respectively.
The axially first side portion 111 of the cap 11 is located on the axially first side of the outer tubular member 15.

The lock claw 13 is a ring-shaped member made of, for example, metal and formed in an annular shape. As shown in FIG. 1 and FIG. 2, the lock claw 13 has a substantially V-shape in the axial section of the pipe joint 1, and more specifically, the lock claw 13 protrudes to the first side in the axial direction and extends in the lateral direction. It has a substantially V-shaped bent shape. The lock claw 13 has a claw portion 131a at the end portion on the inner peripheral side thereof.
The lock claw 13 is arranged on the first side in the axial direction with respect to the outer tubular member 15, on the inner peripheral side of the first axial side portion 111 of the cap 11 and on the outer peripheral side of the inner tubular portion 171 of the main body member 17, and It is located adjacent to the outer peripheral side of the insertion space 16. The outer peripheral side end of the lock claw 13 is arranged in the gap between the outer cylinder member 15 and the cap 11.
Although illustration is omitted, the lock claw 13 is provided with slits that open to the outer peripheral edge of the lock claw 13 and slits that open to the inner peripheral edge of the lock claw 13 alternately in the circumferential direction. Thereby, the lock claw 13 is configured to be elastically deformable in the radial direction. A plurality of claws 131a are formed at the inner peripheral end of the lock claw 13 and are circumferentially separated from each other by slits that open at the inner peripheral edge of the lock claw 13.
Each of the claws 131a faces the inner peripheral side and the second side in the axial direction (the inner side of the insertion space 16).
As shown in FIG. 2, in the state before the tubular body 2 is inserted into the insertion space 16, the inner diameter of the lock claw 13 (the diameter at the tip of the claw portion 131 a) is the inner diameter of the outer tubular portion 151 of the outer tubular member 15. It is made slightly smaller than that, and the claw portion 131 a is in a state of protruding into the insertion space 16. As a result, the lock claw 13 is configured such that when the tubular body 2 is inserted into the insertion space 16, the claw portion 131a bites into the outer peripheral surface of the inserted tubular body 2 as shown in FIG. 3(a). Has been done.
Note that the lock claw 13 may have any configuration as long as it has a substantially horizontal V-shape as described above in the axial cross section. For example, the lock claw 13 does not have to have a slit that opens at the outer peripheral edge of the lock claw 13.

The resin ring 12 is a ring-shaped member made of, for example, resin and formed in an annular shape. The resin ring 12 is arranged on the first side in the axial direction with respect to the lock claw 13 and on the inner peripheral side of the cap 11 and the outer peripheral side of the inner cylindrical portion 100. Further, the resin ring 12 is adjacent to the insertion space 16 on the outer peripheral side, in other words, defines the end of the insertion space 16 on the outer peripheral side. The resin ring 12 is inside the ring-shaped

members

12, 13, 15 (the resin ring 12, the lock claw 13, the outer cylinder member 15) arranged on the inner peripheral side of the cap 11 and the outer peripheral side of the insertion space 16. And is arranged on the most axially first side.
In the present embodiment, the resin ring 12 has a function (release function) that can release the lock claw 13 from biting into the tubular body 2 as described later.

In the pipe joint 1 configured as described above, when the tubular body 2 is inserted into the insertion space 16 as shown in FIG. 3A, the claw portion 131a of the lock claw 13 is attached to the outer peripheral surface of the tubular body 2. Slightly bite. At this time, the space between the inner peripheral surface of the tubular body 2 and the outer peripheral surface of the inner cylindrical portion 171 of the main body member 17 is fluid-tightly sealed by the sealing member 14. In this way, the tubular body 2 is connected to the insertion connection port 30 of the pipe joint 1 with one touch (just by inserting it).
On the other hand, when removing the tubular body 2 from the pipe joint 1, the jig (not shown) is axially inserted into the cap 11 from the axial first side toward the resin ring 12, and the resin ring 12 is axially moved. Push in to the second side. Then, the resin ring 12 presses the claw portion 13a of the lock claw 13 to release the bite of the claw portion 13a into the tubular body 2. In this state, when the tubular body 2 is pulled out to the first side in the axial direction, the tubular body 2 can be removed from the pipe joint 1.

The position sensor unit 3 is provided in the pipe joint 1 in the present embodiment. More specifically, in the present embodiment, the position sensor unit 3 is configured in an annular shape (ring shape) and is embedded in the outer tubular member 15 of the pipe joint 1. The position sensor unit 3 is configured integrally with the outer cylinder member 15 by being inserted into a mold for molding the outer cylinder member 15 when the outer cylinder member 15 is molded by injection molding or the like. .. Alternatively, the position sensor unit 3 is formed integrally with the outer tubular member 15 by, for example, being housed in a recess formed in the outer tubular member 15 after the outer tubular member 15 is molded and fixed by adhesion or the like. .. In the illustrated example, the inner peripheral surface of the position sensor unit 3 is exposed to the inner peripheral surface of the outer tubular member 15 (FIG. 2).
The position sensor unit 3 sets the axial position of the tubular body 2 in the insertion space 16 (and thus the insertion amount of the tubular body 2 into the insertion space 16) in a plurality of stages (three in this example). It is configured so that it can be detected.
Here, "configured so that the axial position of the tubular body 2 in the insertion space 16 can be detected at a plurality of stages" means that a plurality of different axial positions (points) in the insertion space 16 can be detected. In each of the position or the region having the width along the axial direction), it is possible to detect whether or not a predetermined portion (for example, the end portion on the second side in the axial direction) of the tubular body 2 is positioned. In other words, it is possible to detect which axial direction position the predetermined portion of the tubular body 2 is in among a plurality of different axial direction positions in the insertion space 16. It means that.
As shown by the functional blocks in FIG. 1, the position sensor unit 3 includes a position detection unit 31, a communication unit 32, and a storage unit 33.

In this example, the position sensor unit 3 has a plurality (three in this example) of position detection units 31 (31a to 31c), and an annular (ring-shaped) support for these position detection units 31. ) Is provided (FIG. 2). The position sensor unit 3 uses the plurality of (three in this example) position detecting units 31 (31a to 31c) to position the tubular body 2 in the axial direction in the insertion space 16 (and thus to the insertion space 16). The insertion amount of the tubular body 2) is detected at a plurality of (three in this example) stages.
These three position detection parts 31a to 31c are embedded in the support part 34, respectively, and are arranged along the axial direction. The support portion 34 is made of metal, for example. In the present example, in each of the position detecting parts 31a to 31c, the detected part 5 provided in the tubular body 2 is located in the vicinity of itself (more specifically, in the present example, on the inner peripheral side). At some time, the detected part 5 is configured to be detected.
More specifically, in this example, each of the position detectors 31a to 31c is configured to be able to detect metal. On the other hand, the detected part 5 provided on the tubular body 2 is made of a material containing metal. The detected part 5 may be configured by, for example, a metal tape attached on the outer peripheral surface of the tubular body 2, or a paint or ink containing metal applied on the outer peripheral surface of the tubular body 2. it can. The detected part 5 is preferably provided in an annular shape along the circumferential direction of the tubular body 2. The thickness of the detected portion 5 is, for example, preferably 1 mm or less, more preferably 0.5 mm or less, and further preferably approximately 0 mm. In each figure, the thickness of the detected portion 5 is exaggerated for ease of viewing. In this example, the detected part 5 is provided on the outer peripheral surface of the tubular body 2 at the end of the tubular body 2 on the second side in the axial direction (FIG. 1 ).

In the example of FIGS. 1 to 3, of the three position detecting units 31, the first position detecting unit 31a located closest to the second axial side is the end of the insertion space 16 on the second axial side (back side). (As a result, it is at an axial position that overlaps with or is adjacent to the end of the large diameter portion 175 on the axially first side). And the 1st position detection part 31a WHEREIN: The end part by the side of the axial direction 2nd side of the tubular body 2 (and hence the detected part 5 provided there) is the end part of the insertion space 16 at the 2nd side of the axial direction. It is configured so that the detected part 5 can be detected in the state of being located at (FIG. 3A). In this example, the state in which the end of the tubular body 2 on the axial second side is located at the end of the insertion space 16 on the axial second side (back side) means the pipe joint 1 and the tubular body 2. It means that the connection state with is in a proper state. In other words, the position sensor section 3 detects that the first position detecting section 31a detects the detected section 5, so that the end of the tubular body 2 on the second side in the axial direction has the second side in the axial direction of the insertion space 16 ( It is configured so that the state of being positioned at the end portion on the back side), and by extension, the proper state can be detected (FIG. 3A).
The second position detection unit 31b adjacent to the first position detection unit 31a on the axially first side is the most axially second one of the one or more (two in the illustrated example) sealing members 14. It is located at a position adjacent to the second side in the axial direction with respect to the side sealing member 14. Then, in the second position detecting portion 31b, the end portion on the second side in the axial direction of the tubular body 2 (and thus the detected portion 5 provided therein) is disposed with respect to the sealing member 14 on the second side in the maximum axial direction. The detection target portion 5 can be detected in a state in which the detection target portion 5 is located adjacent to the second side in the axial direction (FIG. 3B). In this example, the state in which the end of the tubular body 2 on the axial second side is adjacent to the axial second side with respect to the sealing member 14 on the axial second side is the tubular body 2. Starts to slip out of the insertion space 16 and the end of the tubular body 2 on the second side in the axial direction is approaching the sealing member 14, so that the connection state between the pipe joint 1 and the tubular body 2 needs to be inspected. It means that it is in a state (state requiring inspection). In other words, the position sensor section 3 detects that the second position detection section 31b detects the detected section 5, so that the end of the tubular body 2 on the second side in the axial direction is the sealing member closest to the second side in the axial direction. It is configured to be able to detect a state in which it is adjacent to the second side in the axial direction with respect to 14, and thus a state requiring inspection (FIG. 3B).
Of the three position detection units 31, the third position detection unit 31c located closest to the first axial direction side (left side in FIG. 3) is the axial line of the sealing member 14 closest to the second axial direction side (right side in FIG. 3). It is in the axial direction region from the end on the second side in the direction to the end on the first side in the axial direction of the sealing member 14 on the most first side in the axial direction. And the 3rd position detection part 31c WHEREIN: The end part by the side of the axial direction 2nd side of the tubular body 2 (and hence the detected part 5 provided there) is the axis line of the sealing member 14 of the 2nd side of an axial direction most. The detection target portion 5 can be detected in a state in the axial region from the end on the direction second side to the end on the axial first side of the sealing member 14 on the most axial first side. (FIG. 3(c)). In this example, the end portion of the tubular body 2 on the second axial side is located at the first axial side sealing member 14 from the second axial side end of the second axial side sealing member 14. The state of being in the axial region up to the end of the tubular body 2 on the first side in the axial direction means that the tubular body 2 has considerably advanced from the insertion space 16 and the end portion of the tubular body 2 on the second side in the axial direction. May be hung on the sealing member 14 and may possibly leak water. Therefore, the connection state between the pipe joint 1 and the tubular body 2 is in a state requiring immediate action (immediate action state). Means In other words, the position sensor section 3 detects that the third position detecting section 31c detects the detected section 5, so that the end of the tubular body 2 on the second side in the axial direction is the sealing member closest to the second side in the axial direction. The state in the axial direction region from the end on the axial second side of 14 to the end on the axial first side of the most axial first side is detected, and by extension, the immediate response state is detected. It is configured to be capable (FIG. 3(c)).

The communication unit 32 is composed of, for example, a communication interface. The position sensor unit 3 is configured to be capable of electrically communicating (transmitting, or both transmitting and receiving) with the outside (for example, a predetermined device) by the communication unit 32. Here, “electrically communicating” refers to, for example, wired communication and/or wireless communication. In this example, the position sensor unit 3 is configured to be capable of electrically transmitting the position detection information to the outside by the communication unit 32. The position detection information includes the detection result of the axial position of the tubular body 2 in the insertion space 16, which is output from the position detection unit 31. The position sensor unit 3 detects only the position detecting unit 31 that has detected the detected unit 5 among the plurality of position detecting units 31 (31a to 31c) as the detection result of the axial position of the tubular body 2 in the insertion space 16. May output the detection result, or each position detection unit 31 may output the determination result as to whether or not the detected unit 5 is detected. Moreover, it is preferable that the position detection information includes identification information (ID) of the position sensor unit 3. Further, the position detection information may include the date and time of detection.
The storage unit 33 is composed of, for example, a ROM and/or a RAM. The storage unit 33 stores, for example, identification information (ID) of the position sensor unit 3. Further, the storage unit 33 may be configured to (for example, temporarily) store the detection result from the position detection unit 31. In that case, for example, the position sensor unit 3 may be configured to accumulate the position detection information until the timing of transmitting the position detection information to the outside.
The position sensor unit 3 may not have the storage unit 33.

The water leakage sensor unit 4 is provided in the pipe joint 1 in the present embodiment. More specifically, in the example of FIG. 2, the water leakage sensor unit 4 is embedded in the main body member 17 (more specifically, the torque input portion 173 in the example of the drawing) so as to come into contact with the outer cylinder member 15. It is arranged.
The water leak sensor unit 4 is configured to detect water leak. In addition, as the water leakage, for example, there is no fluid-tightness between the tubular body 2 and the sealing member 14, water is passing therethrough, or cracks occur in the pipe joint 1, and water leaks from there. A state of being present can occur.
As shown by the functional blocks in FIG. 1, the water leakage sensor unit 4 includes a water leakage detection unit 41, a communication unit 42, and a storage unit 43.

The water leak detector 41 is configured to detect water leak.
It is preferable that the water leak detection unit 41 be configured to detect water leak by detecting the vibration of the water passage. More specifically, the water leakage detection unit 41 detects vibration during water passage (specifically, for example, the wavelength or frequency of vibration) at any time or periodically, and detects vibration during water passage (specifically, for example). For example, if it is determined that the vibration wavelength or frequency) is different from the vibration during water passage in the normal state where no water leakage has occurred, it is determined that water leakage has occurred (water leakage is detected). If so, it is preferable. In this case, the definition of vibration during water passage in a normal state where no water leakage has occurred (specifically, for example, the wavelength or frequency of vibration), or the vibration during water passage is the vibration during water passage in a normal state The criteria for determining that they are different may be set in advance. Since vibration during water passage basically occurs uniformly over the entire piping system 6, the water leakage sensor unit 4 (leakage detection unit 41) is configured to detect water leakage by vibration of water passage. In such a case, the water leakage sensor unit 4 can detect water leakage equally regardless of the position on the piping system 6. Therefore, the water leakage sensor unit 4 may be arranged at any position on the piping system 6. For example, the water leakage sensor unit 4 may be provided on the outer surface of the pipe joint 1, or may be provided on the outer surface of the tubular body 2. However, it is more preferable to be provided inside the pipe joint 1 as in the example of FIG. 2. Further, if the pipe joint 1 has a plurality of insertion joints 30 and/or if the piping system 6 has a plurality of pipe joints 1, the water leakage sensor unit 4 is provided for each of the insertion joints 30. One pipe may be provided, but a smaller number than the total number of the insertion connection ports 30 that configure the piping system 6 may be provided, and for example, one pipe joint 1 may be provided. Alternatively, only one may be provided for the entire piping system 6.
The water leak detector 41 may be configured to detect water by detecting water. In this case, it is preferable that the water leakage sensor unit 4 is disposed inside the pipe joint 1 so as to face (expose) a path through which water leaked when water leakage occurs. For example, in the example of FIG. 2, water that leaks when a water leak occurs can pass through the path between the main body member 17 and the outer cylinder member 15, so the water leakage sensor unit 4 separates the main body member 17 and the outer cylinder member 15. It is suitable to be arranged inside the main body member 17 or the outer tubular member 15 so as to face the path (boundary surface) between them, and specifically, inside the main body member 17 as in the example of FIG. It is preferable that the outer cylinder member 15 is arranged so as to be in contact with the outer cylinder member 15, or the inner cylinder member 15 is arranged so as to be in contact with the main body member 17.

The communication unit 42 is composed of, for example, a communication interface. The water leak sensor unit 4 is configured to be capable of electrically communicating (transmitting or both transmitting and receiving) with the outside (for example, a predetermined device) by the communication unit 42. In the present example, the water leakage sensor unit 4 is configured to be capable of electrically transmitting the water leakage detection information to the outside by the communication unit 42. The water leak detection information includes the water leak detection result output from the water leak detection unit 41. As the water leakage detection result, the water leakage sensor unit 4 may output a determination result of whether or not water leakage has occurred from the water leakage detection unit 41, or only when it determines that water leakage has occurred. The water leakage detection unit 41 may output the result of the determination that the water leakage has occurred. Further, it is preferable that the water leak detection information includes identification information (ID) of the water leak sensor unit 4. The water leak detection information may also include the date and time of detection.
The storage unit 43 is composed of, for example, a ROM and/or a RAM. The storage unit 43 stores, for example, identification information (ID) of the water leak sensor unit 4. The storage unit 43 may be configured to (for example, temporarily) store the detection result from the water leak detection unit 41. In that case, for example, the water leak sensor unit 4 may be configured to store the water leak detection information until the timing of transmitting the water leak to the outside.
The water leakage sensor unit 4 may not have the storage unit 43.

In this example, the water leak sensor unit 4 is configured separately from the position sensor unit 3, but the water leak sensor unit 4 may be integrated with the position sensor unit 3. In this case, the communication unit 42 and the storage unit 43 of the water leakage sensor unit 4 may be configured (combined) with the communication unit 32 and the storage unit 33 of the position sensor unit 3, respectively.

Here, the effect of the present embodiment will be described.
In the present embodiment, as described above, the position sensor unit 3 is configured to be able to detect the axial position of the tubular body 2 in the insertion space 16 (and thus the insertion amount of the tubular body 2). ..
Thereby, the user can confirm the connection state between the tubular body 2 and the pipe joint 1 without visually checking the detection result from the position sensor unit 3. Therefore, even if the pipe joint 1 is arranged at a position that is difficult to see (for example, on the ceiling or on the back side of the wall), it is possible to check the connection state between the tubular body 2 and the pipe joint 1. It will be possible. Therefore, the efficiency of the confirmation work can be improved.
Further, the user should always check the connection state between the tubular body 2 and the pipe joint 1 not only when connecting the tubular body 2 and the pipe joint 1 but also during the subsequent use period of the piping system 6. You can Therefore, even if the tubular body 2 begins to come out of the pipe joint 1 after the tubular body 2 and the pipe joint 1 are once connected, the user can immediately grasp it and take necessary action. Therefore, the reliability of the connection between the tubular body 2 and the pipe joint 1 can be improved.
In addition, since the connection state between the tubular body 2 and the pipe joint 1 is automatically detected by the position sensor unit 3, compared to a case where a person visually confirms the connection state between the tubular body 2 and the pipe joint 1, The connection state between the tubular body 2 and the pipe joint 1 can be grasped accurately and reliably. Therefore, the reliability of the connection between the tubular body 2 and the pipe joint 1 can be improved.
In general, when the pipe joint (and by extension, the tubular body) has a large diameter (for example, when the nominal diameter of the pipe joint is about 30 to 50), the flow rate is large, so that the connection state between the tubular body and the pipe joint is large. If it is not proper, damage may increase. Therefore, when the pipe joint has a large diameter, it is possible to reliably confirm whether or not the connection between the tubular body and the pipe joint is properly completed, and it is possible to immediately grasp the disconnection of the tubular body during the use period after the connection is completed. There is a particularly large need for Therefore, the piping system 6 and the pipe joint system 8 of the present embodiment are suitable because they can meet these needs, especially when the pipe joint (and by extension, the tubular body) has a large diameter.

-Second Embodiment-
4 to 5 are drawings for explaining the piping system 6 according to the second embodiment of the present invention and the pipe joint system 8 according to the second embodiment of the present invention. Hereinafter, the piping system 6 and the pipe joint system 8 according to the second embodiment of the present invention will be described focusing on the points different from the first embodiment.
In the first embodiment, the position of the tubular body 2 in the insertion space 16 in the axial direction can be detected in a plurality of stages by detecting one detected part 5 with the plurality of position detecting parts 31 (31a to 31c). However, in the second embodiment, by detecting the plurality of detected portions 5 (5a to 5c) with one position detection portion 31, the axial direction of the tubular body 2 in the insertion space 16 is detected. The position can be detected in multiple stages.
The structure of the pipe joint 1 may be the same as that of the first embodiment.
Moreover, the configuration of the water leakage sensor unit 4 may be the same as that of the first embodiment.

In the present embodiment, the position sensor section 3 is provided in the pipe joint 1, and more specifically, is provided at the end of the resin ring 12 on the second side in the axial direction. In the illustrated example, the position sensor unit 3 is embedded in the resin ring 12, and the inner peripheral surface of the position sensor unit 3 is exposed to the inner peripheral surface of the resin ring 12.
As in the first embodiment, the position sensor unit 3 has a plurality of axial positions of the tubular body 2 in the insertion space 16 (and thus the insertion amount of the tubular body 2 into the insertion space 16). In the example, it is configured so that it can be detected in three stages.
In the present embodiment, the position sensor unit 3 has only one position detection unit 31 (not a plurality). On the other hand, the tubular body 2 is provided with a plurality of (more specifically, three in this example) detected portions 5 (5a to 5c), and these detected portions 5a to 5c are arranged in the axial direction. Are arranged along.
The position detecting unit 31 detects the detected portion 5 (5a to 5c) provided on the tubular body 2 when the detected portion 5 (5a to 5c) is located near itself (in this example, more specifically, on the inner peripheral side thereof). The detector 5 (5a to 5c) can be detected and identified.
More specifically, in this example, the position detection unit 31 is configured to be able to detect a color. On the other hand, the detected parts 5a to 5c provided on the tubular body 2 have different colors. Each of the detected parts 5a to 5c can be constituted by, for example, a tape attached on the outer peripheral surface of the tubular body 2, or a paint or ink applied on the outer peripheral surface of the tubular body 2. In each figure, the thickness of the detected portion 5 is exaggerated for ease of viewing. In this example, these detected parts 5a to 5c are arranged along the axial direction at positions apart from the end on the axial second side of the tubular body 2 toward the axial first side. The position detecting unit 31 detects when the detected unit 5 (5a to 5c) provided on the tubular body 2 is located near itself (in this example, more specifically, on the inner peripheral side of itself). The color of the detected portion 5 (5a to 5c) can be detected. Note that, for example, the storage unit 33 stores the colors of the detected units 5a to 5c in advance, and the position detection unit 31 detects the detected colors and the detected units 5a stored in the storage unit 33 in advance. It is preferable that the detection target portions 5a to 5c are identified (that is, the detected detection target portion 5 is identified) by comparing the detection target portions 5a to 5c with each other.

In the example of FIG. 5, of the three detected parts 5a to 5c, the first detected part 5a located on the most axially first side (left side of FIG. 5) is the axial second side of the tubular body 2 (see FIG. (Right side of 5) is located on the inner peripheral side of the position detection unit 31 and is detected by the position detection unit 31 in a state where it is located at the end of the insertion space 16 on the second side in the axial direction. (FIG. 5A). In this example, the state in which the end of the tubular body 2 on the axial second side is located at the end of the insertion space 16 on the axial second side (back side) means the pipe joint 1 and the tubular body 2. It means that the connection state with is in a proper state. In other words, the position sensor part 3 detects that the position detection part 31 has detected the first detected part 5a, so that the end of the tubular body 2 on the second side in the axial direction is the second side in the axial direction of the insertion space 16 ( It is configured to be able to detect a state in which it is located at the end portion on the far side), and by extension, a proper state (FIG. 5A).
In the second detected portion 5b adjacent to the first detected portion 5a on the axial second side, the end of the tubular body 2 on the axial second side is the sealing member 14 on the most axial second side. On the other hand, in the state in which it is located adjacent to the second side in the axial direction, it is located on the inner peripheral side of the position detection unit 31 and is detected by the position detection unit 31 (FIG. 5B). ). In this example, the state in which the end of the tubular body 2 on the axial second side is adjacent to the axial second side with respect to the sealing member 14 on the axial second side is the tubular body 2. Starts to slip out of the insertion space 16 and the end of the tubular body 2 on the second side in the axial direction is approaching the sealing member 14, so that the connection state between the pipe joint 1 and the tubular body 2 needs to be inspected. It means that it is in a state (state requiring inspection). In other words, the position sensor unit 3 detects that the position detection unit 31 has detected the second detected unit 5b, so that the end portion of the tubular body 2 on the axial second side is the sealing member on the most axial second side. It is configured to be able to detect a state in which it is in a position adjacent to the second side in the axial direction with respect to 14, and thus a state requiring inspection (FIG. 5(b)).
Of the three position detecting parts 31, the third detected part 5c located on the most axially second side has the end of the tubular body 2 on the axial second side, and the sealing member 14 on the most axial second side. From the end on the axial direction second side to the end on the most axial side first side of the sealing member 14 on the axial direction first side, in the state of being in the axial direction region, on the inner peripheral side of the position detection unit 31. It is configured to be located and detected by the position detection unit 31 (FIG. 5(c)). In this example, the end portion of the tubular body 2 on the second axial side is located at the first axial side sealing member 14 from the second axial side end of the second axial side sealing member 14. The state of being in the axial region up to the end of the tubular body 2 on the first side in the axial direction means that the tubular body 2 has considerably advanced from the insertion space 16 and the end portion of the tubular body 2 on the second side in the axial direction. May be hung on the sealing member 14 and may possibly leak water. Therefore, the connection state between the pipe joint 1 and the tubular body 2 is in a state requiring immediate action (immediate action state). Means In other words, the position sensor section 3 detects that the position detection section 31 has detected the third detected section 5c, so that the end of the tubular body 2 on the second side in the axial direction is the sealing member closest to the second side in the axial direction. The state in the axial direction region from the end on the axial second side of 14 to the end on the axial first side of the most axial first side is detected, and by extension, the immediate response state is detected. It is configured to be capable (Fig. 5(c)).

The communication unit 32 and the storage unit 33 of the position sensor unit 3 may be the same as in the first embodiment.

Also in the second embodiment, the same effect as that of the first embodiment can be obtained.
Further, as compared with the first embodiment, the number of position detection units 31 can be reduced, so that the configuration can be simplified and the cost can be reduced.

-Third Embodiment-
FIG. 6 is a drawing for explaining a piping system 6 according to a third embodiment of the present invention and a pipe joint system 8 according to the third embodiment of the present invention. Hereinafter, the piping system 6 and the pipe joint system 8 according to the third embodiment of the present invention will be described focusing on the points different from the first embodiment and the second embodiment.
In the first embodiment and the second embodiment, the resin ring 12 of the pipe joint 1 has a function (release function) that can release the bite of the lock claw 13 into the tubular body 2, but the third embodiment In the embodiment, the resin ring 12 of the pipe joint 1 does not have a releasing function.
Note that the configuration of the parts other than the resin ring 12 may be the same as in the first and second embodiments. FIG. 6 shows an example in which only the structure of the resin ring 12 is changed to one without the release function in the first embodiment (FIG. 1).

In the example of FIG. 6, the resin ring 12 has a locking portion 121 that is located on the axially first side (left side in FIG. 6) with respect to the cap 11 and that faces the cap 11 in the axial direction. .. With such a configuration, even if the resin ring 12 is pushed to the second side in the axial direction by a jig or the like, the locking portion 121 is in contact with the cap 11 so that the resin ring 12 is relatively opposed to the second side in the axial direction with respect to the cap 11. Movement is restricted. As a result, the resin ring 12 is prevented from pressing the claw portion 13a of the lock claw 13.
Note that the resin ring 12 may have no release function due to a configuration different from this example.

According to the pipe joint 1 of the present embodiment, in addition to the effects of the first and second embodiments, it is possible to prevent the tubular body 2 from being removed by a jig or the like.
Generally, when the pipe joint (and by extension the tubular body) has a large diameter (for example, when the nominal diameter of the pipe joint is about 30 to 50), the tubular body is once connected to the pipe joint, Will never be removed from. Therefore, the piping system 6 and the pipe joint system 8 of the third embodiment are particularly suitable for use when the pipe joint (and thus the tubular body) has a large diameter.
On the other hand, in the case where the pipe joint (and thus the tubular body) has a relatively small diameter (for example, when the nominal diameter of the pipe joint is less than 30), even after the tubular body is once connected to the pipe joint, There is a high demand for being able to remove it. Therefore, the first embodiment and the second embodiment using the resin ring 12 with the release function are suitable especially when the pipe joint (and thus the tubular body) has a relatively small diameter.

-Fourth Embodiment-
7 to 9 are drawings for explaining the piping system 6 according to the fourth embodiment of the present invention and the pipe joint system 8 according to the fourth embodiment of the present invention. Hereinafter, the piping system 6 and the pipe joint system 8 according to the fourth embodiment of the present invention will be described focusing on the points different from the above-described embodiments.
In the fourth embodiment, the pipe joint 1 has an outer cylinder member 15 as a ring-shaped member adjacent to the insertion space 16 on the outer peripheral side. The outer cylinder member 15 has a transparent window portion 151e configured so that the inside of the insertion space 16 can be visually recognized from the outside. The outer cylinder member 15 may be configured such that the window portion 151e is transparent by forming the entire transparent material, or only a part including the window portion 151e is formed of a transparent material. Therefore, the window 151e may be transparent. The window 151e is preferably configured so that at least the end of the insertion space 16 on the second side in the axial direction can be visually recognized, and at least a part of the insertion space 16 on the second side in the axial direction. Is more preferably configured to be visible from the outside, and at least a portion of the insertion space 16 from the end on the axial second side to the sealing member 14 on the axial second most side is formed. It is even more preferable if it is configured to be visible from the outside. In the example of FIG. 7, the window 151e includes the end of the outer tubular member 15 on the second side in the axial direction of the cap 11 and the end of the insertion space 16 on the second side in the axial direction (specifically, the main body). It is a portion located in the axial direction region up to the axially first end of the large diameter portion 175 of the member 17.
The outer peripheral surface of the window portion 151e has a first smooth surface portion 151d extending parallel to the axial direction. The first smooth surface portion 151d extends in the circumferential direction.
The position sensor section 3 is arranged on the first smooth surface section 151d (FIGS. 7 to 8). In this embodiment, the position sensor unit 3 is preferably an optical sensor, but may be a sensor of another system.
According to this embodiment, since the position sensor section 3 is arranged on the first smooth surface section 151d, it is possible to prevent the position sensor section 3 from tilting or shifting, and to stably mount the position sensor section 3 on the pipe joint 1. Can be installed. Therefore, the position sensor unit 3 can stably detect the axial position of the tubular body 2 in the insertion space 16.
Further, according to the present embodiment, since the position sensor section 3 is arranged on the outer peripheral surface of the window section 151e, the position of the tubular body 2 in the axial direction in the insertion space 16 is determined via the window section 151e. , Can be detected without problems.
In addition, it is preferable that the axial length L3 (FIG. 8) of the first smooth surface portion 151d be the same as or longer than the axial length L1 (FIG. 8) of the position sensor unit 3. As a result, the position sensor unit 3 can be attached more stably, and by extension, the position can be detected more stably. The length L3 (FIG. 8) of the first smooth surface portion 151d in the axial direction is preferably 2 to 4 mm, for example. The axial length L1 (FIG. 8) of the position sensor unit 3 is preferably 1 to 3 mm, for example. The length L2 (FIG. 9) in the circumferential direction of the position sensor unit 3 when the position sensor unit 3 is viewed in plan is preferably 1.5 to 3.5 mm.
The radial thickness T (FIG. 8) from the first smooth surface portion 151d to the inner peripheral surface of the window 151e of the outer tubular member 15 may be arbitrary, but may be, for example, 3 to 6 mm.

In the fourth embodiment, it is preferable that the piping system 6 further includes a mounting base member 91 mounted on the outer peripheral side of the window 151e of the pipe joint 1 (FIGS. 7 to 9). The mounting base member 91 has, on its inner peripheral surface, a second smooth surface portion 91d extending parallel to the axial direction of the pipe joint 1. The position sensor unit 3 is embedded inside the mounting base member 91. The position sensor section 3 is provided inside the mounting base member 91 so as to extend along the second smooth surface section 91d of the mounting base member 91 (specifically, parallel to the second smooth surface section 91d). It is preferable that it is buried. The second smooth surface portion 91d of the mounting base member 91 is preferably in contact with the first smooth surface portion 151d of the window portion 151e of the pipe joint 1.
Since the second smooth surface portion 91d of the mounting base member 91 is in contact with the first smooth surface portion 151d of the window portion 151e of the pipe joint 1, when the mounting base member 91 is mounted to the pipe joint 1, The mounting base member 91 can be positioned with respect to the pipe joint 1, and the mounting base member 91 can be prevented from tilting with respect to the pipe joint 1. Further, the position sensor portion 3 of the mounting base member 91 is arranged so as to extend along the second smooth surface portion 91d of the mounting base member 91 (specifically, parallel to the second smooth surface portion 91d). By being embedded inside, the position sensor unit 3 can be positioned with respect to the pipe joint 1, and the position sensor unit 3 can be prevented from tilting with respect to the pipe joint 1.
The position sensor section 3 is preferably exposed on the second smooth surface section 91d of the mounting base member 91, but may not be exposed on the second smooth surface section 91d of the mounting base member 91.
It is preferable that the axial length L4 (FIG. 8) of the second smooth surface portion 91d be equal to or longer than the axial length L3 (FIG. 8) of the first smooth surface portion 151d.

In the fourth embodiment, it is preferable that the mounting base member 91 is applied to the end face of the stopper protrusion 151c of the outer tubular member 15 on the second side in the axial direction, as in the example shown in FIGS. 7 and 8. Is. Accordingly, when the mounting base member 91 is mounted on the pipe joint 1, the mounting base member 91 (and thus the position sensor portion 3) can be easily positioned with respect to the pipe joint 1 in the axial direction.

The mounting base member 91 is preferably made of metal, for example, but may be made of other materials.

In the fourth embodiment, it is preferable that the first smooth surface portion 151d of the pipe joint 1 extends in the circumferential direction over the entire circumference of the pipe joint 1.
On the other hand, the mounting base member 91 (and by extension the second smooth surface portion 91d) extends in the circumferential direction over at least a part of the pipe joint 1 in the circumferential direction. That is, the mounting base member 91 (and by extension, the second smooth surface portion 91d) may extend in the circumferential direction over the entire circumference of the pipe joint 1, so that the mounting base member 91 may have an annular shape in a cross section in the direction perpendicular to the axis. Alternatively, the pipe joint 1 may have a C-shape in a cross section in the direction perpendicular to the axis by extending in the circumferential direction over only a part of the pipe joint 1 in the circumferential direction. It is preferable that the second smooth surface portion 91d of the mounting base member 91 is in contact with the first smooth surface portion over the entire length of the mounting base member 91 in the circumferential direction.
With such a configuration, the mounting base member 91 (and thus the position sensor unit 3) can be stably positioned with respect to the pipe joint 1.
When the mounting base member 91 is formed in a C-shape in a cross section in the direction perpendicular to the axis, the mounting base member 91 can be mounted only by fitting the mounting base member 91 into the pipe joint 1, so that the mounting becomes easy.

In the fourth embodiment, it is preferable that the piping system 6 further includes the wireless tag 94 provided in the pipe joint 1. The wireless tag 94 is configured to acquire the position detection information output from the position sensor unit 3 including the detection result of the axial position of the tubular body 2 in the insertion space 16. The wireless tag 94 is configured such that the receiving device 71 (for example, the receiving device 71 (FIG. 11) described later) can receive the position detection information from the wireless tag 94 by wireless communication.
The wireless tag 94 is configured as, for example, an RFID tag or an IC tag.
Further, as the receiving device 71, for example, an RFID tag reader or an IC tag reader can be cited.
With such a configuration, the user having the receiving device 71 can acquire the detection information from the position sensor unit 3 by the receiving device 71. As a result, even if the pipe joint 1 is installed in a closed environment such as in the ceiling, it is possible to check the connection remotely. Here, not only the installer but also a third party can confirm the completion of the installation. Further, there is also an advantage that it is possible to grasp the position of the pipe joint 1 in the concealed portion such as the ceiling by searching where the pipe joint 1 is installed in the direction in which the receiving device 71 reacts. is there.
In this case, it is preferable that the piping system 6 further includes a processing unit 93 that processes the position detection information output from the position sensor unit 3 and stores the position detection information in the wireless tag 94. The communication between the position sensor unit 3, the processing unit 93, and the wireless tag 94 may be wired communication or wireless communication.

In the fourth embodiment, it is preferable that the wireless tag 94 be embedded inside the mounting base member 91 as in the example shown in FIGS. 7 to 9. In this case, it is preferable that the antenna 95 of the wireless tag 94 extends in the circumferential direction inside the mounting base member 91. The antenna 95 may extend over only a part of the pipe joint 1 in the circumferential direction, or may extend over the entire periphery of the pipe joint 1.
With such a configuration, it is possible to increase the distance between the user having the receiving device 71 and the pipe joint 1, so that the convenience for the user can be improved.
Note that the portion of the wireless tag 94 other than the antenna 95 (for example, the IC chip 96) may be arranged at an arbitrary portion inside the mounting base member 91. For example, the mounting base member 91 has a projecting portion 92 that projects to the outer peripheral side (FIG. 9 ), and a portion of the wireless tag 94 other than the antenna 95 (for example, the IC chip 96) is inside the projecting portion 92. It may be arranged.
Further, in this case, it is preferable that the processing section 93 is also embedded in the mounting base member 91. The processing unit 93 may be arranged at an arbitrary portion inside the mounting base member 91, and may be arranged inside the projecting portion 92 of the mounting base member 91, for example, as in the example of FIG. 7.

By adjusting the viewing angle θ (FIG. 7) of the position sensor unit 3 in the axial section, the axial viewing length D (FIG. 7) of the insertion space 16 by the position sensor unit 3 can be adjusted. Thereby, the degree of insufficient insertion can be detected. The viewing angle θ is preferably 60° to 125°, for example. The visual field length D is preferably 5 to 18 mm, for example.

In the fourth embodiment, the mounting base member 91 and each element embedded in the mounting base member 91 (in the example of the figure, the position sensor unit 3, the wireless tag 94, the processing unit 93, etc.) are mounted. It constitutes the unit 9. The mounting unit 9 is provided in the pipe joint system 8 of the piping system 6.

In addition, in the above-described first to third embodiments, the position sensor unit 3 is configured to be able to detect the axial position of the tubular body 2 in the insertion space 16 in three stages. In each of the examples described in this specification, the position sensor unit 3 detects the axial position of the tubular body 2 in the insertion space 16 at an arbitrary plurality (for example, two or four or more) stages. It may be configured to be possible. In such a case, for example, the connection state between the tubular body and the pipe joint is grasped in more detail than in the case where the axial position of the tubular body 2 in the insertion space 16 is detected in one step. It will be possible.
However, in each example described in this specification, the position sensor unit 3 may be configured to be able to detect the axial direction position of the tubular body 2 in the insertion space 16 in one stage.
Here, "configured so that the axial position of the tubular body 2 in the insertion space 16 can be detected in one stage" means that a predetermined one axial position (point In a position or a region having a width along the axial direction), it is possible to detect whether or not a predetermined portion of the tubular body 2 (for example, an end portion on the second side in the axial direction) is located. It means that.
If the position sensor unit 3 is configured to detect the axial position of the tubular body 2 in the insertion space 16 in one or more stages, the tubular body detected by the position sensor unit 3 The position of the second axial direction (point position or a region having a width along the axial direction) is not limited to the examples of FIGS. 1 to 5, and may be set arbitrarily.
Further, in each example described in the present specification, the position sensor unit 3 may be configured to be capable of continuously detecting the axial position of the tubular body 2 in the insertion space 16.
Here, "configured so that the axial position of the tubular body 2 in the insertion space 16 can be continuously detected" means that each dot-shaped axial position (point position in the insertion space 16). 2), it is possible to detect whether or not a predetermined portion (for example, the end portion on the second side in the axial direction) of the tubular body 2 is located. In this case, it is possible to more accurately detect which axial direction position in the insertion space 16 the predetermined portion of the tubular body 2 is in.

The position sensor unit 3 (and thus the position detection unit 31) determines the axial position of the tubular body 2 in the insertion space 16 in one or a plurality of stages by an arbitrary method different from the examples described above. Alternatively, the detection may be performed continuously.
For example, in the first embodiment (FIG. 1), the position sensor unit 3 detects the color of the detected part 5 or the tubular body 2 as in the second embodiment (FIG. 4) instead of detecting the metal. Therefore, the axial position of the tubular body 2 may be detected.
Further, in each example described in this specification, a portion having irregularities (steps) such as scratches formed in advance on the outer surface of the tubular body 2 is the detected portion 5, and the position sensor portion 3 is the detected portion 5. The position of the tubular body 2 in the axial direction may be detected by detecting the unevenness (step) of the tubular body 2.
Alternatively, the position sensor unit 3 detects the change amount of reflection or transmission when the tubular body 2 or the detected portion 5 is irradiated with ultrasonic waves or near infrared rays, and thereby detects the axial position of the tubular body 2. It may be configured to be detectable.
Alternatively, the position sensor unit 3 may be configured to be able to detect the axial position of the tubular body 2 with laser light.
Alternatively, the position sensor part 3 is switched by engagement with the tubular body 2 or the detected part 5 when the tubular body 2 or the detected part 5 reaches a predetermined axial position in the insertion space 16. The configured physical switch may be configured to detect the axial position of the tubular body 2.
Alternatively, a conductor is provided in a predetermined portion in each of the tubular body 2 and the insertion space 16, and the position sensor unit 3 is inserted into the conductor on the tubular body 2 (which constitutes the detected portion 5) and the insertion space 16. The position in the axial direction of the tubular body 2 may be detected by a structure in which electric power is supplied when it comes into contact with the inner conductor.

In the above-described first to fourth embodiments (FIGS. 1 to 9), the position sensor unit 3 detects the detected portion 5 provided in the tubular body 2 so that the position inside the insertion space 16 is reduced. It is configured so that the axial position of the tubular body 2 can be detected. As a result, it becomes possible to more reliably detect the connection state between the tubular body and the pipe joint, as compared with the case where the position sensor unit 3 is configured to detect the tubular body 2 itself. In addition, the configuration of the position sensor unit 3 can be simplified.
However, the tubular body 2 may not be provided with the detected part 5, for example, the position sensor part 3 is configured to detect the normal tubular body 2 in which the detected part 5 is not provided. May be. In this case, there is an advantage that the step of providing the detected portion 5 on the tubular body 2 can be omitted.

As in the above-described first to third embodiments (FIGS. 1 to 6), the position sensor unit 3 has the ring-shaped

members

12, 13 that are adjacent to the outer peripheral side of the insertion space 16 in the pipe joint 1. , 15 (more specifically, the outer cylinder member 15 in the first and third embodiments, and the resin ring 12 in the second embodiment), the position sensor unit 3 is temporarily provided in the ring-shaped member 12, Since the position sensor unit 3 is arranged at a position adjacent to the insertion space 16 as compared with the case where it is provided on a member (cap 11 in the example in the drawing) located on the outer peripheral side of 13, 15, The axial position of the tubular body 2 in the insertion space 16 can be detected more reliably. Further, as compared with the case where the position sensor unit 3 is provided on a member (inner cylinder portion 171 of the main body member 17 in the example of the drawing) located on the inner peripheral side of the insertion space 16, the position sensor unit 3 is The risk of damage due to contact with water or water pressure can be reduced.
However, the position sensor unit 3 may be provided at an arbitrary position inside the pipe joint 1. In this case, the position sensor unit 3 may be embedded in any member that constitutes the pipe joint 1, or may be fixed to the surface of any member that constitutes the pipe joint 1 by adhesion or the like. When the position sensor unit 3 is provided on the resin ring 12 as in the second embodiment (FIG. 4), if the resin ring 12 is formed longer than that shown in FIG. It is preferable because it may be easily detected.
Further, the position sensor unit 3 may be provided on both the pipe joint 1 and the tubular body 2.

In the above-described first to fourth embodiments (FIGS. 1 to 9), since the water leak sensor unit 4 is provided, water leak can be detected.
However, the water leakage sensor unit 4 may not be provided.

In the above-described first to fourth embodiments (FIGS. 1 to 9), the position sensor unit 3 and the water leakage sensor unit 4 electrically detect the respective detection information (position detection information, water leakage detection information). It is configured to be able to be transmitted to the outside (that is, by wire communication and/or wireless communication). Thereby, the user can easily acquire the detection information from the position sensor unit 3 and the water leak sensor unit 4. In addition, in the fourth embodiment, as described above, the position sensor unit 3 is configured to be able to transmit the position detection information to the outside by wireless communication via the wireless tag 94.
In particular, the position sensor unit 3 and the water leakage sensor unit 4 respectively transmit the respective detection information to the outside immediately (in real time) after detecting the axial position of the tubular body 2 in the insertion space 16. It is suitable if it is constituted as follows. Thereby, the user can acquire the detection information from the position sensor unit 3 and/or the water leakage sensor unit 4 in real time. Therefore, the user can promptly respond when a failure (disconnection of the tubular body 2 or water leakage) starts to occur in the piping system 6.
It is preferable that each of the position sensor unit 3 and the water leak sensor unit 4 be configured to be able to transmit the respective detection information (position detection information, water leak detection information) to the outside by wireless communication. This eliminates the need for disposing a communication cable or the like as compared with the case of transmitting by wire communication, so that the communication infrastructure can be simplified. In addition, in the fourth embodiment, as described above, the position sensor unit 3 is configured to be able to transmit the position detection information to the outside by wireless communication via the wireless tag 94.
Note that the piping system 6 is configured such that when the predetermined receiving device 71 is located within a predetermined distance from the position sensor unit 3 and/or the water leakage sensor unit 4, the position sensor will be described later with reference to FIG. 11. It is preferable that the detection information (position detection information, water leakage detection information) from the unit 3 and/or the water leakage sensor unit 4 is configured to be receivable by the predetermined receiving device 71. As a result, the communication infrastructure can be simplified or omitted as compared with the case where the receiving device 71 is configured to constantly (as needed or periodically) receive the detection information (for example, the example of FIG. 10 described later). .. Here, the “predetermined receiving device 71 ”refers to, for example, a device configured to establish communication with the position sensor unit 3 and/or the water leakage sensor unit 4.

In the above-described first to fourth embodiments (FIGS. 1 to 9), the plug connection port 30 of the pipe joint 1 is brought into contact with the sealing member 14 and the inner peripheral surface of the tubular body 2. It has an inner surface water stop structure configured to stop water between the tubular body 2 and the pipe joint 1.
However, in each of the above-described examples, the plug-in connection port 30 of the pipe joint 1 stops the water between the tubular body 2 and the pipe joint 1 by the contact between the sealing member 14 and the outer peripheral surface of the tubular body 2. The outer surface water stop structure may be provided. In this case, the sealing member 14 is arranged adjacent to the insertion space 16 on the outer peripheral side. Further, in this case, the inner tubular portion 171 may be omitted, and the insertion space 16 is partitioned by the inner peripheral surface of the outer tubular portion 151, for example.

[Piping information system]
Next, an embodiment of the piping information system of the present invention will be described with reference to FIGS. The embodiment of the piping information system of the present invention can include the piping system according to any of the above-described embodiments of the present invention (and by extension, the pipe joint system according to any of the embodiments of the present invention).

-First embodiment-
FIG. 10 is a drawing for explaining the piping information system 7 according to the first embodiment of the present invention.
The piping information system 7 of the present embodiment includes the piping system 6 of any example described above, a local server 72 as a receiving device 71, a remote server 73, and a monitoring terminal 74.

In the present embodiment, the piping system 6 has one or more position sensor units 3 and one or more water leakage sensor units 4. Each of the position sensor units 3 and each of the water leak sensor units 4 can transmit their detection information (position detection information, water leak detection information) electrically (by wireless communication and/or wired communication) to the outside. Is configured. Note that the position sensor unit 3 is configured to be able to transmit position detection information to the outside by wireless communication via the wireless tag 94, as in the fourth embodiment (FIGS. 7 to 9) of the piping system 6. It may have been done. It is preferable that the position detection information from each position sensor unit 3 includes identification information (ID) of each position sensor unit 3 in addition to the detection result. Further, it is preferable that the water leak detection information from each water leak sensor unit 4 includes identification information (ID) of each water leak sensor unit 4 in addition to the detection result.

The local server 72 is installed in the building where the piping system 6 is installed, and includes, for example, a communication unit 721, a processing unit 722, and a storage unit 723.
The communication unit 721 is composed of, for example, a communication interface. The local server 72 is configured to be able to communicate with the position sensor unit 3 and the water leak sensor unit 4 in the piping system 6 and the remote server 73 by the communication unit 721. More specifically, the local server 72 is configured so that the communication unit 721 can receive the detection information from the position sensor units 3 and the water leakage sensor units 4 in the piping system 6. The reception of the detection information from each of the position sensor units 3 and each of the water leak sensor units 4 is preferably performed at any time (at the detected timing), but is performed at, for example, a predetermined timing (for example, periodically). Good. Further, the local server 72 is configured such that the communication unit 721 can transmit the detection information from the position sensor units 3 and the water leak sensor units 4 to the remote server 73. The transmission of the detection information from the local server 72 to the remote server 73 is performed, for example, at a predetermined timing (for example, periodically).
The processing unit 722 is composed of, for example, a CPU. The processing unit 722 executes, for example, the program stored in the storage unit 723 to control the entire local server 72.
The storage unit 723 includes, for example, a ROM and/or a RAM. The storage unit 723 stores a program to be executed by the processing unit 722, parameters used by the processing unit 722, and the like, and a database for accumulating detection information from the position sensor units 3 and the water leakage sensor units 4. It has (DB) 724. The local server 72 stores, for example, the detection information received from each position sensor unit 3 and each water leak sensor unit 4 in the database 724 until the transmission timing to the remote server 73, and at the transmission timing, the database 724. The detection information stored therein is configured to be transmitted to the remote server 73.

The remote server 73 is installed at a position apart from the building in which the piping system 6 is installed, and includes, for example, a communication unit 731, a processing unit 732, and a storage unit 733. The remote server 73 is operated by, for example, an IT company.
The communication unit 731 is composed of, for example, a communication interface. The remote server 73 is configured to be able to communicate with the local server 72 and the monitoring terminal 74 by the communication unit 731. More specifically, the remote server 73 is configured so that the communication unit 731 can receive the detection information from the local server 72. Further, the remote server 73 is configured so that the communication unit 731 can transmit the result (analysis result) of a predetermined analysis based on the detection information from the local server 72 to the monitoring terminal 74. The transmission of the analysis result from the remote server 73 to the monitoring terminal 74 may be performed, for example, at a predetermined timing (for example, periodically), or a failure (disconnection of the tubular body 2 and/or water leakage) occurs. It may be carried out only when the analysis result of the above is obtained.
The processing unit 732 is composed of, for example, a CPU. The processing unit 732 executes, for example, a program stored in the storage unit 733 to control the entire remote server 73.
The storage unit 733 is composed of, for example, a ROM and/or a RAM. The storage unit 733 stores a program to be executed by the processing unit 732, parameters used by the processing unit 732, and the like, and has a database (DB) 734 for accumulating the detection information received from the local server 72. ing. The remote server 73 is configured to perform a predetermined analysis based on the detection information accumulated in the database 734, for example. And/or the remote server 73 accumulates the detection information received from the local server 72 in the database 734 before the transmission timing to the monitoring terminal 74, and in the database 734 at the transmission timing. The detected information is transmitted to the monitoring terminal 74 together with the analysis result.

The monitoring terminal 74 is composed of, for example, a computer. The monitoring terminal 74 is installed in, for example, a monitoring center operated by a manufacturer of the piping system 6, a maintenance company, or the like. The monitoring terminal 74 is configured to be able to notify, for example, when it is determined that the piping system 6 is defective (the tubular body 2 is removed and/or water is leaked) based on the analysis result received from the remote server 73. It The notification can be performed by, for example, displaying on a display unit (not shown) and/or generating a sound by a sound generating unit (not shown).

Since the piping information system 7 of the first embodiment is configured as described above, when the manufacturer or the maintenance contractor receives a notification from the monitoring terminal 74, for example, the piping system 6 can be installed at a predetermined construction shop. A quick response can be taken by, for example, ordering construction.

In addition, in the first embodiment, the piping information system 7 may include only one of the local server 72 and the remote server 73, which may be the receiving device 71.
In addition, in the present embodiment, the piping system 6 may not include the water leakage sensor unit 4.

-Second Embodiment-
FIG. 11 is a drawing for explaining the piping information system 7 according to the second embodiment of the present invention.
The piping information system 7 of the present embodiment includes the piping system 6 of any example described above and the receiving device 71.

In the present embodiment, the piping system 6 has one or more position sensor units 3 and one or more water leakage sensor units 4. Each of the position sensor units 3 and each of the water leak sensor units 4 can transmit their detection information (position detection information, water leak detection information) electrically (by wireless communication and/or wired communication) to the outside. Is configured. Note that the position sensor unit 3 is configured to be able to transmit position detection information to the outside by wireless communication via the wireless tag 94, as in the fourth embodiment (FIGS. 7 to 9) of the piping system 6. It may have been done. It is preferable that the position detection information from each position sensor unit 3 includes identification information (ID) of each position sensor unit 3 in addition to the detection result. Further, it is preferable that the water leak detection information from each water leak sensor unit 4 includes identification information (ID) of each water leak sensor unit 4 in addition to the detection result.
The piping information system 7 includes the position sensor unit 3 and/or the water leak when the predetermined receiving device 71 is located within a predetermined distance from the position sensor unit 3 (or the wireless tag 94) and/or the water leak sensor unit 4. The detection information (position detection information, water leakage detection information) from the sensor unit 4 is configured to be receivable by the predetermined receiving device 71. More specifically, the receiving device 71 transmits radio waves in a spherical area having a predetermined radius (for example, several meters to several tens of meters) centered on itself, and is located in the radio wave transmitting area. When the sensor unit 3 (or the wireless tag 94) and/or the water leak sensor unit 4 is located, the detection information from the position sensor unit 3 and/or the water leak sensor unit 4 can be received.
It is preferable that the receiving device 71 is configured to be portable so that a person can carry it, as in the example shown in FIG. 11.
The position sensor unit 3 (or the wireless tag 94) and the water leak sensor unit 4 are configured to transmit the detection information to the receiving device 71, for example, only while the communication with the receiving device 71 is possible. It is preferable, but the detection information may be transmitted to the outside at all times (at any time or periodically).

Since the piping information system 7 of the second embodiment is configured as described above, for example, a user (an inspector or the like) having the receiving device 71 can walk near the piping system 6 and the receiving device 71 can It becomes possible to collect detection information and perform inspection based on the collected information. In many cases, the piping system 6 is arranged in an invisible place such as the upper side of the ceiling C (FIG. 11) or the back side of the wall. Therefore, the piping information system 7 of the present embodiment has no problem in such a case. There is an advantage that the detection information can be collected.
In addition, the detection information is received by the reception device 71 only when the reception device 71 approaches the position sensor unit 3 (or the wireless tag 94) and/or the water leakage sensor unit 4, so the above-described first embodiment ( As compared with the case where the detection information is constantly received by the receiving device 71 as shown in FIG. 10), the communication infrastructure can be simplified or omitted, and the cost can be reduced.

In the second embodiment, the piping information system 7 may further include a device (server or the like) configured to receive the detection information from the receiving device 71.
In addition, in the present embodiment, the piping system 6 may not include the water leakage sensor unit 4.

The pipe system, the pipe information system, and the pipe joint system of the present invention can be suitably used for pipes for water supply, hot water supply, and the like.

1: Pipe fitting,
11: Cap, 111: Axial first side portion of the cap, 112: Axial second side portion of the cap, 112a, 112b: Fitting recess,
12: resin ring (ring-shaped member), 121: locking part,
13: Lock claw (ring-shaped member), 131a: Claw part,
14: sealing member,
15: Outer cylinder member (ring-shaped member), 151: Extension part (outer cylinder part) of outer cylinder member, 151a, 151b: Fitting projection part, 151c: Stopper projection part, 151d: First smooth surface part, 151e: Window part, 152: axially second side part of the outer cylinder member,
16: Insert space,
17: main body member, 171: axial direction first side portion (inner cylinder portion) of the main body member, 171a: annular groove, 172: axial direction second side portion of the main body member, 172a: screw portion, 173: main body member torque Input part, 174: small diameter part of main body member, 175: large diameter part of main body member, 176: axially intermediate part of main body member,
30: Plug connection port,
2: tubular body,
3:

position sensor unit

31, 31a to 31c: position detection unit, 32: communication unit, 33: storage unit, 34: support unit,
4: Leakage sensor unit, 41: Leakage detection unit, 42: Communication unit, 43: Storage unit,
5: detected part,
6: Piping system,
7: Piping information system, 71: Receiver,
72: local server, 721: communication unit, 722: processing unit, 723: storage unit, 724: database,
73: remote server, 731: communication unit, 732: processing unit, 733: storage unit, 734: database,
74: monitoring terminal,
8: Pipe fitting system,
9: Mounting unit, 91: Mounting base member, 91: Second smooth surface portion, 92: Projection portion, 93: Processing portion, 94: Wireless tag, 95: Antenna, 96: IC chip,
ID: insertion direction, PD: extraction direction, O: pipe axis of pipe fitting,
C: Ceiling

Claims

A tubular body,
An insertion space for inserting the tubular body from one side in the axial direction is formed, and a pipe joint,
Provided to the pipe joint or to both the pipe joint and the tubular body, the axial position of the tubular body in the insertion space, in one or more stages, or continuously, A position sensor unit configured to detect,
A piping system equipped with.
The piping system further includes a detected portion provided in the tubular body,
The position sensor unit is configured to detect the position of the detection target unit to detect the axial position of the tubular body in the insertion space in one or more stages or continuously. The piping system according to claim 1, which is provided.
The piping system according to claim 1 or 2, wherein the position sensor unit is configured to detect the axial position of the tubular body in the insertion space in a plurality of stages.
The pipe joint has a ring-shaped member adjacent to the outer peripheral side with respect to the insertion space,
The piping system according to any one of claims 1 to 3, wherein the position sensor unit is provided on the ring-shaped member.
The piping system is further provided with a water leakage sensor unit provided in the pipe joint and configured to detect water leakage,
The piping system according to any one of claims 1 to 4, wherein the water leakage sensor unit is configured separately or integrally with the position sensor unit.
The position sensor section is configured to be capable of electrically transmitting to the outside position detection information including a detection result of the axial position of the tubular body in the insertion space. The piping system according to any one of claims.
The piping system according to claim 6, wherein the position sensor unit is configured to transmit the position detection information to the outside by wireless communication.
The position detection information from the position sensor unit is configured to be receivable by the predetermined receiving device when the predetermined receiving device is located within a predetermined distance from the position sensor unit. The piping system according to Item 7.
The pipe joint has a ring-shaped member adjacent to the outer peripheral side with respect to the insertion space,
The ring-shaped member has a transparent window portion configured so that the inside of the insertion space can be visually recognized from the outside,
The outer peripheral surface of the window portion has a first smooth surface portion extending in parallel to the axial direction,
The piping system according to any one of claims 1 to 3, wherein the position sensor unit is arranged on the first smooth surface.
The piping system further includes a mounting base member mounted on the outer peripheral side of the window portion of the pipe joint,
The mounting base member has, on its inner peripheral surface, a second smooth surface portion extending in parallel to the axial direction of the pipe joint,
The position sensor unit is embedded inside the mounting base member so as to extend along the second smooth surface portion of the mounting base member,
The piping system according to claim 9, wherein the second smooth surface portion of the mounting base member is in contact with the first smooth surface portion of the window portion of the pipe joint.
The piping system further includes a wireless tag provided in the pipe joint,
The wireless tag is configured to acquire position detection information, which is output from the position sensor unit and includes a detection result of an axial position of the tubular body in the insertion space, and a reception device. The piping system according to claim 10, which is configured to be able to receive the position detection information from the wireless tag by wireless communication.
The wireless tag is embedded inside the mounting base member,
The piping system according to claim 11, wherein the antenna of the wireless tag extends in the circumferential direction inside the mounting base member.
The first smooth surface portion of the pipe joint extends in the circumferential direction over the entire circumference of the pipe joint,
The second smooth surface portion of the mounting base member extends in the circumferential direction over at least part of the circumferential direction of the pipe joint, and is in contact with the first smooth surface portion. The piping system according to any one of claims.
A piping system according to any one of claims 6 to 8 and 11 to 13,
A receiving device configured to receive the position detection information from the position sensor unit,
A piping information system equipped with.
A pipe joint in which an insertion space for inserting the tubular body from one side in the axial direction is formed,
A position sensor unit provided in the pipe joint and configured to detect the axial direction position of the tubular body in the insertion space at one or more stages, or continuously, and a position sensor unit,
A pipe joint system equipped with.