Attachment device and method for attaching and detaching information acquisition device

Abstract

To provide an attachment device which enables an information acquisition device to be attached or detached preferably, and to provide an attachment / detachment method of the information acquisition device.SOLUTION: An attachment device may attach an information acquisition device A which acquires information in a duct part 11, in which a fluid circulates, and includes a mount part 200, a holder part 300, and a restriction jig 400. The restriction jig 400 includes: a first mount restriction part 412 which engages with the mount part 200 to be restricted from moving relative to the mount part 200 in an axial direction; and a second mount restriction part 421 which engages with the mount part 200 to be restricted from moving relative to the mount part 200 in a rotation direction. The restriction jig 400 is moved relatively to the mount part 200 in the rotation direction to cause the first mount restriction part 412 and the second mount restriction part 421 to engage with the mount part 200.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a mounting device capable of mounting an information acquisition device that acquires information about the inside of a pipeline through which a fluid flows, and a method for attaching and detaching the information acquisition device. [Background technology]

[0002] Conventionally, there are known technologies for devices that acquire information about the inside of pipes. For example, Patent Document 1 discloses a non-stop water pipe inspection device that can insert an inspection rod to inspect the inside of a pipe into a hole formed in the middle of the pipe. The inspection rod is attached to a through flange that is provided so as to communicate with the hole.

[0003] In the uninterrupted water supply pipe investigation device described in Patent Document 1, it is thought that the flange formed on the pipeline and the penetration flange are fixed using bolts, nuts, etc. In such a case, when attaching or detaching the penetration flange and the investigation rod, it is expected that it will be difficult to secure space for the fastening work, and the fastening work will be complicated. For this reason, an attachment device and an attachment / detachment method for the information acquisition device that can be easily attached or detached are required. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 63-62754 Summary of the Invention [Problem to be solved by the invention]

[0005] One aspect of the present disclosure has been made in consideration of the above-described situation, and the problem it aims to solve is to provide an attachment device and a method for attaching and detaching an information acquisition device that can be conveniently attached and detached. [Means for solving the problem]

[0006] The problem to be solved by the present invention is as described above, and the means for solving this problem will now be described.

[0007] An attachment device according to one aspect of the present disclosure is an attachment device capable of attaching an information acquisition device that acquires information about the inside of a pipeline through which a fluid flows, and comprises: a mount portion that is attached to the pipeline and has a through hole that communicates with an opening formed in the pipeline; a holder portion that is inserted into the through hole to be detachably attached to the mount portion and to which the information acquisition device is attached; and a jig used to attach and detach the holder portion to the mount portion, wherein the jig comprises: a first regulating portion that engages with the mount portion to restrict relative movement with respect to the mount portion in the axial direction of the opening; and a second regulating portion that engages with the mount portion to restrict relative movement with respect to the mount portion in the rotational direction about the axis of the opening; and the first regulating portion and the second regulating portion can be engaged with the mount portion by moving the jig relative to the mount portion in the rotational direction. According to one aspect of the present disclosure, the information acquisition device can be attached and detached in a suitable manner.

[0008] In one embodiment of the present disclosure, the mounting portion has a first protrusion that protrudes outward, the first regulating portion opens in the rotational direction and has a first engagement portion that can engage with the first protrusion as the first regulating portion moves in the rotational direction, and the second regulating portion opens downward and has a second engagement portion that can engage with the first protrusion as the second regulating portion moves downward when the rotational position relative to the first protrusion is aligned. According to one aspect of the present disclosure, by engaging the first engagement portion and the second engagement portion with the first protrusion, it is possible to restrict vertical and rotational movement of the jig relative to the mount portion.

[0009] In one aspect of the present disclosure, the holder portion includes a fixing portion that is removably fixed to the mount portion by a predetermined operation, and the jig includes a fixed portion to which the fixing portion removed from the mount portion is removably fixed. According to one aspect of the present disclosure, the holder portion can be fixed to a jig and easily removed.

[0010] The mount portion according to one aspect of the present disclosure has a notch portion formed therein extending in the axial direction, and the holder portion includes a shaft portion to which the information acquisition device is attached and through which a cable of the information acquisition device can be wired, and a guide portion provided on the shaft portion and guided along the notch portion; and a cable outlet through which the cable inside the shaft portion can be taken out to the outside of the holder portion. According to one aspect of the present disclosure, the guide portion is guided by the notch portion, thereby enabling the positioning of the information acquisition device.

[0011] The holder portion in one aspect of the present disclosure comprises an axis portion to which the information acquisition device is attached, and a protective portion that is arranged within the through hole of the mounting portion and has an insertion hole through which the axis portion and the information acquisition device are inserted, and is capable of protecting the information acquisition device. According to one aspect of the present disclosure, by providing the protective portion, it is possible to prevent the information acquisition device from coming into contact with the mount portion or the like when attaching or detaching the holder portion.

[0012] The jig according to one aspect of the present disclosure is provided with a third regulating portion that, when engaged with the protective portion, regulates relative axial movement with respect to the protective portion, and, when the engagement of the first regulating portion and the second regulating portion with the mounting portion is released, the jig is moved relative to the protective portion in the rotational direction, thereby enabling the third regulating portion to engage with the protective portion. According to one aspect of the present disclosure, the relative axial movement of the protective part relative to the jig can be restricted simply by moving the jig relative to the protective part in a rotational direction, and in this state, the protective part can be easily attached and detached using the jig.

[0013] In one embodiment of the present disclosure, the protective portion has a second protrusion that protrudes outward from the mounting portion, and the third regulating portion has a third engagement portion that opens in the rotational direction and can engage with the second protrusion when the third regulating portion moves in the rotational direction. According to one aspect of the present disclosure, by engaging the third engagement portion with the second protrusion, it is possible to restrict the relative axial movement of the protection portion with respect to the jig.

[0014] The second protrusion according to one aspect of the present disclosure has a pressure outlet through which the pressure of the fluid in the pipeline can be taken out. According to one aspect of the present disclosure, the second protrusion can be used as a part for extracting the pressure of the fluid.

[0015] A method for attaching and detaching an information acquisition device according to one aspect of the present disclosure is a method for attaching and detaching an information acquisition device using an attachment device according to one aspect of the present disclosure, in which the jig is rotated in the rotational direction relative to the mount portion to engage the first regulating portion and the second regulating portion with the mount portion, and the holder portion is attached and detached to and from the mount portion with the first regulating portion and the second regulating portion engaged with the mount portion. According to one aspect of the present disclosure, the information acquisition device can be attached and detached in a suitable manner. [Effects of the Invention]

[0016] According to one aspect of the present disclosure, the information acquisition device can be attached and detached in a suitable manner. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a front cross-sectional view showing a mounting device and a valve device according to a first embodiment of the present disclosure; [Figure 2] FIG. 2 is a front cross-sectional view showing the mount unit, the holder unit, and the information acquisition device. [Figure 3] FIG. 2 is a side cross-sectional view showing the mount unit, the holder unit, and the information acquisition device. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] (a) is a front cross-sectional view showing the regulating jig, (b) is an exploded front cross-sectional view showing the regulating jig. [Figure 7] (a) is a side cross-sectional view showing the restriction jig, (b) is an exploded side cross-sectional view showing the restriction jig. [Figure 8] (a) A schematic diagram showing the state where the regulating jig is being lowered. (b) A schematic diagram showing the state where the outer portion abuts against the first protrusion. (c) A schematic diagram showing the state where the regulating jig is being rotated. (d) A schematic diagram showing the state where the regulating jig is engaged with the first protrusion. [Figure 9] 5 is a schematic diagram showing the positional relationship between a regulating jig, a first protrusion, and a second protrusion. FIG. [Figure 10] FIG. 10 is a side cross-sectional view showing a state in which the regulating jig is engaged with the first protrusion of the mount portion. [Figure 11] FIG. 10 is a side cross-sectional view showing the state in which the holder portion is removed from the mount portion by the attachment / detachment jig. [Figure 12] FIG. 10 is a side view showing a state in which the regulating jig is engaged with the second protrusion of the protection part. [Figure 13] FIG. 10 is a side view showing the holder portion and the protection portion being pulled up by the regulating jig. DETAILED DESCRIPTION OF THE INVENTION

[0018] In the following description, the directions indicated by arrows U, D, F, B, L, and R in the drawings are defined as the upward, downward, forward, backward, leftward, and rightward directions, respectively. Note that the drawings used in the following description are schematic diagrams, and the specific shapes and dimensions of each member are not limited to those shown in the drawings.

[0019] An attachment device 1 according to this embodiment will be described below with reference to FIGS.

[0020] The mounting device 1 is used to mount an information acquisition device A, which acquires information about the inside of a water pipe, on a valve device 10. The valve device 10 will be described below first with reference to FIG.

[0021] The valve device 10 shown in FIG. 1 is connected to a water pipe (such as a buried pipe) and is capable of controlling the flow of tap water (fluid) flowing through the water pipe (e.g., a gate valve). The valve device 10 houses a valve body that controls the flow of tap water. For ease of explanation, FIG. 1 shows a cross section of the portion of the valve device 10 where the information acquisition device A is provided, and does not show the portion where the valve body is provided. The valve device 10 is placed inside a valve box (not shown) buried underground. The valve device 10 forms part of a water pipe that extends in the front-to-rear direction. The valve device 10 includes a pipe section 11, a sensor housing section 12, and a sensor cover 13.

[0022] The conduit section 11 constitutes a part of the water pipe and is the section through which tap water (fluid) flows. The conduit section 11 is open in the front-rear direction and is connected to water pipes at the front and rear. A substantially cylindrical protrusion 11a is formed at the top of the conduit section 11 so as to protrude upward. Openings 11b that open at the top and bottom are formed in the protrusion 11a.

[0023] The sensor storage section 12 is a section in which the mounting device 1 is stored. The sensor storage section 12 is formed in a generally box shape that opens upward. The sensor storage section 12 is provided in the part of the valve device 10 where the protrusion 11a is formed.

[0024] Sensor cover 13 is a portion that covers mounting device 1 provided in sensor storage section 12. Sensor cover 13 is formed in a generally box shape that opens downward. Sensor cover 13 is attached to sensor storage section 12 in a detachable manner.

[0025] Next, the information acquisition device A will be described. The information acquisition device A shown in Figs. 1 to 3 acquires information about the inside of a water pipe. The information acquisition device A is formed by a plate portion Aa formed in an elastically deformable plate shape and strain gauges Ab provided on the surfaces (front and rear surfaces) of the plate portion Aa. As shown in Fig. 1, the information acquisition device A is attached to an attachment device 1 and is thereby disposed inside a pipeline portion 11 of a valve device 10.

[0026] The information acquisition device A detects the deformation of the plate portion Aa due to the fluid force using a strain gauge Ab, thereby acquiring the flow velocity and flow direction of the water flowing through the water pipe. An appropriate cable Ac is connected to the strain gauge Ab (see Figure 5). The results acquired by the information acquisition device A can be transmitted to an external device (such as an external server) via an appropriate communication device connected to the cable Ac.

[0027] Next, we will explain the attachment device 1. The attachment device 1 shown in Figures 1 to 7 is fixed to the protrusion 11a of the valve device 10, and supports the information acquisition device A so that the information acquisition device A is located inside the pipeline portion 11 of the valve device 10. The attachment device 1 includes a connection portion 100, a mount portion 200, a holder portion 300, a regulating jig 400, and an attachment / detachment jig 500.

[0028] 1 and 4 connects the protruding portion 11a of the valve device 10 to a mount portion 200, which will be described later. The connection portion 100 is formed so as to be able to stop tap water flowing through the protruding portion 11a. The connection portion 100 includes a lower valve connection portion 110, a valve portion 120, an upper valve connection portion 130, and an attachment portion 140.

[0029] The lower valve connector 110 is disposed in the opening 11b of the protrusion 11a and is connected to the lower part of the valve section 120, which will be described later. The lower valve connector 110 is formed in a generally cylindrical shape with its axis oriented in the vertical direction. As shown in FIG. 4, the lower valve connector 110 is formed in a shape in which the diameter of the lower part is larger than that of the upper part. The lower part (the portion with the larger diameter) of the lower valve connector 110 is inserted into the opening 11b of the protrusion 11a.

[0030] A male thread is formed by thread machining on the outer peripheral surface of the upper part of the lower valve connection part 110. In addition, a groove in which an O-ring is placed is provided on the outer peripheral surface of the lower part of the lower valve connection part 110. The O-ring is made of a flexible material such as rubber. By providing the O-ring in the groove, it is possible to seal (fill) the gap between the outer peripheral surface of the lower part of the lower valve connection part 110 and the inner peripheral surface of the opening 11b of the protrusion 11a.

[0031] The valve unit 120 can switch between stopping and releasing the water flow in the flow path branched by the protrusion 11a. The valve unit 120 has a valve element 121 disposed inside a substantially cylindrical member with its axis oriented vertically. The valve unit 120 also has an operating unit 122 that switches between stopping and releasing the water flow using the valve element 121. Female threads are formed by threading at the upper and lower ends of the inner circumferential surface of the valve unit 120. The female threads at the lower part of the valve unit 120 engage with the male threads at the upper part of the lower valve connection part 110. In this embodiment, a ball valve is used as the valve unit 120. Note that the valve unit 120 is not limited to a ball valve, and various valves such as a butterfly valve can be used.

[0032] The upper valve connection part 130 is connected to the upper part of the valve part 120. The upper valve connection part 130 is formed in a generally cylindrical shape by turning the lower valve connection part 110 upside down. As shown in FIG. 4, the lower valve connection part 110 is formed in a shape in which the upper part has a larger diameter than the lower part. A male thread part is formed by thread machining on the outer peripheral surface of the lower part of the lower valve connection part 110. The male thread part on the lower part of the lower valve connection part 110 engages with the female thread part on the upper part of the valve part 120. Furthermore, a groove part in which an O-ring is disposed is provided on the outer peripheral surface of the upper part of the upper valve connection part 130, similar to the lower valve connection part 110 described above.

[0033] The mounting portion 140 is capable of mounting the mount portion 200 (described later). The mounting portion 140 is formed in a generally cylindrical shape with its axis oriented in the vertical direction. The mounting portion 140 is fixed to the protruding portion 11a. The mounting portion 140 is disposed so as to cover the side surface of the valve portion 120.

[0034] The mount part 200 shown in Figures 2, 3, 4 and 9 is attached to the connection part 100, and a holder part 300 (described later) is detachably attached to the mount part 200. The mount part 200 is formed in a substantially cylindrical shape with its axis oriented in the vertical direction. The mount part 200 is formed so that its lower end has a larger diameter than the other parts. The mount part 200 has a through hole 210, a fixing part 220, a notch part 230 and a first protrusion 240.

[0035] The through-hole 210 is a portion that passes through the mount portion 200 in the vertical direction. The through-hole 210 has a larger diameter at the lower end in accordance with the shape of the mount portion 200. As shown in FIGS. 1 and 4, the upper part of the upper valve connection portion 130 is inserted into the lower end of the through-hole 210. The gap between the inner circumferential surface of the mount portion 200 and the outer circumferential surface of the upper part of the upper valve connection portion 130 is filled by an O-ring provided on the upper valve connection portion 130. In addition, a female thread portion 211 formed by thread machining is formed on the inner circumferential surface of the upper part of the through-hole 210.

[0036] The fixing portion 220 is a portion that is fixed to the attachment portion 140 of the connection portion 100. The fixing portion 220 is formed by an expanded diameter portion at the lower end of the mount portion 200. The fixing portion 220 and the upper end of the attachment portion 140 are fixed together with fasteners such as bolts, thereby fixing the mount portion 200 to the connection portion 100.

[0037] The cutout portion 230 is a portion cut out so as to extend in the vertical direction (axial direction) on the side surface of the mount portion 200. The cutout portion 230 is formed in the shape of a slit extending from the upper end portion of the mount portion 200 to approximately the center in the vertical direction (see FIG. 13). A pair of cutout portions 230 is formed in the left-right direction (see FIG. 9).

[0038] The first protrusion 240 shown in Fig. 3 protrudes radially (front-rear direction in Fig. 3) from the outer peripheral surface of the mount unit 200. The first protrusion 240 is formed in a generally cylindrical shape with its axis oriented in the front-rear direction. A pair of first protrusions 240 is provided on the upper part of the mount unit 200. The first protrusions 240 are formed at a position displaced approximately 90 degrees with respect to the cutout portion 230, with the axis (center in a plan view) of the mount unit 200 as the center of rotation (see Fig. 9).

[0039] 2, 3 and 5 is a holder unit 300 to which the information acquisition device A is attached. The holder unit 300 is formed in a shape that is elongated in the vertical direction, and is detachably attached to the mount unit 200 by being inserted into the through-hole 210. The holder unit 300 includes an axis unit 310, an attachment unit 320, a guide unit 330, a fixing unit 340 and a protection unit 350.

[0040] The shaft portion 310 is a generally cylindrical portion that is long in the vertical direction. As shown in Fig. 5, the shaft portion 310 has a through-hole 311 that passes through the shaft portion 310 in the axial direction (vertical direction). The shaft portion 310 also has a guide insertion hole 312 that passes through the upper part of the shaft portion 310 in the radial direction (horizontal direction) and communicates with the through-hole 311.

[0041] The mounting portion 320 is a portion to which the information acquisition device A is attached. The mounting portion 320 is formed in a generally cylindrical shape with its axis oriented in the vertical direction. As shown in FIG. 3, the lower end of the mounting portion 320 has a front side surface formed in a flat shape to which the information acquisition device A can be attached. The mounting portion 320 is fixed at the lower end of the shaft portion 310 in a state where it is inserted into the through-hole 311.

[0042] 2 and 5 is a portion that is guided along the notch 230 of the mount 200. The guide 330 is formed in a generally cylindrical shape with its axis oriented in the left-right direction. The guide 330 is fixed to the shaft 310 by being inserted into the guide insertion hole 312 of the shaft 310. The guide 330 is provided so as to protrude left and right from the shaft 310.

[0043] The outer diameter of the guide portion 330 is formed to correspond to (e.g., slightly smaller than) the width dimension (front-to-back dimension) of the notch portion 230. As shown in Fig. 2, when the holder portion 300 is attached to the mount portion 200, the guide portion 330 is positioned within the notch portion 230. This restricts rotation of the holder portion 300 relative to the mount portion 200. The guide portion 330 is provided with a cable outlet 331.

[0044] 5 is for extracting the cable Ac of the information acquisition device A to the outside of the holder part 300. The cable outlet 331 is formed by cutting out the lower half of the right part of the guide part 330. By forming the cable outlet 331, a substantially semicircular opening that communicates with the through-hole 311 of the shaft part 310 is formed at the right end part of the guide part 330 (see FIG. 3).

[0045] In this embodiment, the guide portion 330 is formed separately from the shaft portion 310, but the present invention is not limited to this. For example, the guide portion 330 may be formed integrally with the shaft portion 310.

[0046] 2, 3, and 5 is a part that is detachably fixed to the mount unit 200. The fixed unit 340 is formed in a generally cylindrical shape with its axis facing the vertical direction. The fixed unit 340 is connected to the upper end of the shaft unit 310 so as to be rotatable around the axis facing the vertical direction.

[0047] A male thread portion 341 is formed by threading on the outer peripheral surface of the fixing portion 340. The male thread portion 341 of the fixing portion 340 engages with the female thread portion 211 of the through hole 210 of the mount portion 200.

[0048] Furthermore, an operation hole 342 for rotating the fixed part 340 is formed on the upper surface of the fixed part 340. The operation hole 342 is formed to engage with an attachment / detachment jig 500, which will be described later. By rotating the fixed part 340, the holder part 300 can be attached to and detached from the mount part 200.

[0049] The protective part 350 shown in Figures 2, 3 and 5 is capable of protecting the information acquisition device A. The protective part 350 is formed in a substantially cylindrical shape with its axis oriented in the vertical direction. The protective part 350 is disposed in the through-hole 210 of the mount part 200, and the shaft part 310 of the holder part 300 is inserted into the protective part 350. The outer diameter of the protective part 350 is formed to be slightly smaller than the inner diameter of the through-hole 210 of the mount part 200. The protective part 350 includes an insertion hole 351, a first groove part 352, a second groove part 353 and a second protrusion part 354.

[0050] The insertion hole 351 is a hole that passes through the protection part 350 in the vertical direction. The shaft part 310 is inserted into the insertion hole 351. The inner diameter of the insertion hole 351 is formed to be slightly larger than the outer diameter of the shaft part 310.

[0051] First groove 352 is a groove formed to extend circumferentially on the inner circumferential surface of the upper part of insertion hole 351. An O-ring made of a flexible material such as rubber is disposed inside first groove 352. By providing the O-ring in first groove 352, it is possible to seal the gap between the outer circumferential surface of shaft portion 310 and the inner circumferential surface of insertion hole 351.

[0052] The second groove portion 353 is a groove formed to extend in the circumferential direction on the outer peripheral surface of the lower portion of the protection portion 350. An O-ring is disposed in the second groove portion 353, similar to the first groove portion 352. By providing the O-ring in the second groove portion 353, it is possible to seal the gap between the outer peripheral surface of the protection portion 350 and the inner peripheral surface of the through-hole 210.

[0053] The second protrusion 354 protrudes outward (in the left-right direction) from the side surface of the protection part 350. The second protrusion 354 is formed in a generally cylindrical shape with its axis oriented in the left-right direction. A pair of second protrusions 354 are provided on the left and right sides of the upper part of the protection part 350. The second protrusions 354 are inserted into holes formed in the side surface of the protection part 350 so as to penetrate in the left-right direction. The outer diameter of the second protrusion 354 is formed to correspond to (for example, slightly smaller than) the width dimension (front-rear dimension) of the notch part 230 of the mount part 200. The second protrusion 354 is provided with a pressure outlet 354a.

[0054] The pressure outlet 354a is a portion where a pressure sensor B (see FIG. 2) capable of acquiring (measuring) the pressure inside the water pipe is attached. The pressure outlet 354a is formed so as to penetrate the second protrusion 354 in the axial direction (left-right direction). The pressure outlet 354a communicates with the insertion hole 351 of the protection part 350.

[0055] A female thread portion that can be engaged with a pressure sensor B is formed on the inner surface of the pressure outlet 354a. In this embodiment, as shown in FIGS. 1 and 2, an example is shown in which the pressure sensor B is attached to the right second protrusion 354 of the left and right second protrusions 354. The left second protrusion 354 is provided with a plug that closes the pressure outlet 354a. The pressure sensor B is not shown in the drawings other than FIGS. 1 and 2.

[0056] In the present embodiment, the second protrusion 354 is formed separately from the main body (cylindrical portion) of the protection part 350, but the present invention is not limited to this. For example, the second protrusion 354 may be formed integrally with the main body of the protection part 350.

[0057] 1 to 3 show a state in which the holder unit 300 described above is attached to the mount unit 200. In this state, the holder unit 300 is inserted into the mount unit 200 and the connection unit 100, and the information acquisition device A is placed inside the pipe unit 11 of the valve device 10 (see FIG. 1). This makes it possible to acquire information about the inside of the water pipe. In this case, the water stop provided by the valve unit 120 of the connection unit 100 is released, and the connection unit 100 and the mount unit 200 are in communication with the protruding portion 11a of the pipe unit 11. Therefore, the water pressure of the water flowing through the water pipe is applied to the holder unit 300 inside the mount unit 200 (through-hole 210).

[0058] 2, a radial gap is formed between the outer peripheral surface of shaft portion 310 of holder part 300 and the inner peripheral surface of insertion hole 351 of protective part 350, below the O-ring in first groove part 352. The gap is in communication with pressure outlet 354a of second protrusion 354. In this embodiment, pressure sensor B provided at pressure outlet 354a can be used to obtain the pressure inside the water pipe via the gap.

[0059] 2, when the holder unit 300 is attached to the mount unit 200, the guide unit 330 and the second protrusion 354 are positioned within the notch 230 of the mount unit 200. This positions the holder unit 300 relative to the mount unit 200. This allows the information acquisition device A to be positioned via the holder unit 300. With the above configuration, it is possible to accurately position a device such as the information acquisition device A, whose orientation (posture) relative to the fluid flow direction affects measurement accuracy. In addition, in this state, the second protrusion 354 protrudes outward beyond the mount unit 200.

[0060] The regulating jig 400 shown in FIGS. 6 to 9 is used to attach and detach the holder portion 300 to and from the mount portion 200. The regulating jig 400 is formed in a substantially cylindrical shape that allows the mount portion 200 to be inserted therethrough. With the mount portion 200 inserted, the regulating jig 400 rotates around the center of rotation (the vertical axis) in a plan view, thereby engaging with the mount portion 200. In the following description, as shown in FIG. 9, the clockwise rotation direction in a plan view is referred to as the "first rotation direction," and the counterclockwise rotation direction in a plan view is referred to as the "second rotation direction." The manner in which the regulating jig 400 engages with the mount portion 200 will be described in detail later. The regulating jig 400 is formed in a shape that is elongated in the vertical direction. The regulating jig 400 includes an inner portion 410 and an outer portion 420.

[0061] The inner portion 410 shown in FIGS. 6 and 7 is a generally cylindrical portion with its axis oriented in the vertical direction. The inner portion 410 has a slit 410a cut out from the lower end to the upper portion so as to extend in the vertical direction. As shown in FIG. 6, a pair of slits 410a are formed in the radial direction (left-right direction). The inner portion 410 is formed in a shape that is generally point-symmetrical with the axis (center in plan view) as the center of rotation. The inner portion 410 includes an insertion hole 411, a first mount restricting portion 412, a protector restricting portion 413, and a guide pin 414.

[0062] The insertion holes 411 are portions through which the mount portion 200, the holder portion 300, etc. are inserted. The insertion holes 411 are formed so as to penetrate vertically through the inner portion 410. The insertion holes 411 include a first insertion hole 411a and a second insertion hole 411c.

[0063] The first insertion hole 411a is a portion that constitutes the upper part of the insertion hole 411. The inner diameter of the first insertion hole 411a is formed to have approximately the same dimension as the inner diameter of the through-hole 210 of the mount part 200. A female thread part 411b is formed on the inner circumferential surface of the first insertion hole 411a by threading. The female thread part 411b of the first insertion hole 411a engages with a male thread part 341 formed on the fixing part 340 of the holder part 300 (see FIG. 11).

[0064] The second insertion hole 411c is a portion that constitutes the lower part of the insertion hole 411. The vertical dimension of the second insertion hole 411c is formed to be smaller than the vertical dimension of the first insertion hole 411a. The second insertion hole 411c has a larger diameter than the first insertion hole 411a. The inner diameter of the second insertion hole 411c is formed to be slightly larger than the outer diameter of the mount part 200 so that the mount part 200 can be inserted therethrough (see FIG. 10, etc.).

[0065] The first mount restricting portion 412 is a portion that engages with the mount portion 200 to restrict relative movement in the up and down direction with respect to the mount portion 200. The first mount restricting portion 412 is formed on the lower portion of the inner portion 410. The first mount restricting portion 412 engages with the first protrusions 240 of the mount portion 200. A pair of first mount restricting portions 412 is provided to correspond to the pair of first protrusions 240. The first mount restricting portion 412 includes a first engaging portion 412a.

[0066] The first engagement portion 412a shown in FIG. 6 is a portion that engages with the first protrusion 240. The first engagement portion 412a is formed in a shape (generally groove-shaped) that opens toward the first rotation direction (rightward in FIG. 6) and extends in the rotation direction (circumferential direction). The width dimension (vertical dimension) of the first engagement portion 412a is formed to be slightly larger than the outer diameter of the first protrusion 240. When the first engagement portion 412a is engaged with the first protrusion 240, relative movement in the vertical direction between the inner portion 410 (first mount restriction portion 412) and the mount portion 200 is restricted (see FIG. 9, etc.).

[0067] The protector restricting portion 413 shown in FIG. 6 is a portion that engages with the protector 350 to restrict relative movement in the up and down direction with respect to the protector 350. The protector restricting portion 413 is formed at the lower end of the inner portion 410. The protector restricting portion 413 engages with the second protrusions 354 of the protector 350. A pair of the protector restricting portions 413 is provided to correspond to the pair of second protrusions 354. The protector restricting portion 413 includes a protector engaging portion 413a.

[0068] The protector engagement portion 413a is a portion that engages with the second protrusion 354. The protector engagement portion 413a is open toward the second rotation direction (leftward in FIG. 6) and is formed in a shape (generally groove-shaped) that extends in the rotation direction (circumferential direction). The width dimension (vertical dimension) of the protector engagement portion 413a is formed to be slightly larger than the outer diameter of the second protrusion 354. When the protector engagement portion 413a is engaged with the second protrusion 354, the relative movement in the vertical direction between the inner portion 410 (first mount restriction portion 412) and the protector 350 is restricted (see FIG. 9, etc.).

[0069] The guide pins 414 guide the vertical movement of the outer portion 420, which will be described later. The guide pins 414 are provided so as to protrude radially (front-rear direction in FIG. 7) from the outer peripheral surface of the inner portion 410. The guide pins 414 are formed in a generally cylindrical shape with their axes oriented in the front-rear direction. A pair of guide pins 414 are provided at the front and rear.

[0070] The outer portion 420 shown in FIGS. 6 and 7 is a portion provided radially outward of the inner portion 410. The outer portion 420 is provided below the inner portion 410 so as to cover the outer peripheral surface of the inner portion 410. The outer portion 420 is formed in a plate shape having a curved surface corresponding to the outer peripheral surface of the inner portion 410. As shown in FIG. 6, a pair of outer portions 420 are provided in the front and rear. The pair of outer portions 420 are formed in shapes that are approximately point-symmetric with respect to the axis (center in a plan view) of the regulating jig 400 as the center of rotation. The outer portion 420 is provided to be movable in the up and down direction relative to the inner portion 410. The outer portion 420 includes a second mount regulating portion 421 and a guide groove 422.

[0071] The second mount restricting portion 421 is a portion that engages with the mount portion 200 to restrict relative movement in the rotational direction with respect to the mount portion 200. The second mount restricting portion 421 is formed at the lower end of the outer portion 420. The second mount restricting portion 421 engages with the first protrusions 240 of the mount portion 200. The second mount restricting portions 421 are provided on the pair of outer portions 420 respectively so as to correspond to the pair of first protrusions 240. The second mount restricting portion 421 includes a second engaging portion 421a.

[0072] The second engagement portion 421a shown in FIG. 6 is a portion that engages with the first protrusion 240. The second engagement portion 421a is formed in a shape (generally groove-shaped) that opens downward and extends in the up-down direction. The width dimension (dimension in the rotational direction) of the second engagement portion 421a is formed to be slightly larger than the outer diameter of the first protrusion 240. As shown in FIG. 6(a), the second engagement portion 421a is formed so that its circumferential position coincides with the circumferential position of the first engagement portion 412a. When the second engagement portion 421a is engaged with the first protrusion 240, relative movement in the rotational direction between the outer portion 420 (second mount restriction portion 421) and the mount unit 200 is restricted (see FIG. 8(d) and the like).

[0073] The guide groove 422 shown in Figures 6 and 7 guides the vertical movement of the outer part 420 relative to the inner part 410. The guide groove 422 penetrates the outer part 420 and is formed in a shape (generally a groove shape) that extends in the vertical direction. As shown in Figures 6(a) and 7(a), a guide pin 414 is inserted into the guide groove 422. The guide pin 414 moves relatively within the guide groove 422, thereby guiding the vertical movement of the outer part 420 relative to the inner part 410. The guide pin 414 also prevents the outer part 420 from falling off the inner part 410.

[0074] The attachment / detachment jig 500 shown in Figures 10 and 11 is used to attach and detach the holder part 300 to and from the mount part 200 with the regulating jig 400 engaged with the mount part 200. The attachment / detachment jig 500 is formed in a generally cylindrical shape that is elongated in the vertical direction with its axis oriented in the vertical direction. The attachment / detachment jig 500 is formed so that it can be inserted into the insertion hole 411 of the regulating jig 400 (inner part 410). The tip of the attachment / detachment jig 500 is formed in a shape that can engage with the operation hole 342 formed in the fixing part 340 of the holder part 300. With the tip of the attachment / detachment jig 500 engaged with the operation hole 342 of the fixing part 340, the fixing part 340 can be rotated by rotating the attachment / detachment jig 500 about its axis.

[0075] The above has described the configuration of the attachment device 1. Below, a method for attaching and detaching the information acquisition device A using the above-described attachment device 1 will be described with reference to Figs. 8 to 13. Note that in the following figures, to make it easier to distinguish between the components, the protective portion 350 is colored in Fig. 9, and the inner portion 410 is colored in Figs. 10 and 11.

[0076] First, a method for removing the information acquisition device A will be described. Below, an example will be described in which the holder part 300 is attached to the mount part 200 and the information acquisition device A is removed from the inside of the pipeline part 11 of the valve device 10, as shown in FIG.

[0077] When removing the information acquisition device A, the worker uses the regulating jig 400 and the attachment / detachment jig 500 to pull up the holder part 300 relative to the mount part 200 from the outside (upper side) of the valve box, thereby removing the information acquisition device A. At this time, the worker first removes the sensor cover 13 from the sensor storage part 12.

[0078] Next, as shown in FIG. 8(a), the worker lowers the regulating jig 400 and inserts the mount portion 200 into the second insertion hole 411c of the regulating jig 400 (inner portion 410) (see FIG. 10). At this time, the orientation of the rotational direction of the regulating jig 400 is adjusted so that the regulating jig 400 does not interfere with the second protrusion 354 of the protection portion 350. In this embodiment, the orientation of the rotational direction of the regulating jig 400 is adjusted so that the second protrusion 354 is positioned within the slit 410a of the inner portion 410.

[0079] 8(b), as the regulating jig 400 descends, the lower end of the outer portion 420 comes into contact with the first protrusion 240 of the mount portion 200. By further descending the regulating jig 400 in this state, the outer portion 420 moves upward relative to the inner portion 410.

[0080] In this embodiment, the regulating jig 400 is lowered until the upper end of the mount portion 200 abuts against the step between the first insertion hole 411a and the second insertion hole 411c of the inner portion 410 (see FIG. 10). In this embodiment, when the upper end of the mount portion 200 abuts against the step, the first engagement portion 412a and the first protrusion 240 are approximately aligned in the up-down direction, as shown in FIG. 8(c). In this state, the protection portion engagement portion 413a and the second protrusion 354 are approximately aligned in the up-down direction.

[0081] Next, the worker rotates the regulating jig 400 in a first rotation direction (clockwise), as shown in Figures 8(c) and 9. As a result, the first protrusion 240 is positioned within the first engagement portion 412a and moves relatively within the first engagement portion 412a in the rotation direction. In this state, the first protrusion 240 is engaged with the first engagement portion 412a, and the relative movement in the up-down direction between the regulating jig 400 (inner portion 410) and the mount portion 200 is restricted.

[0082] 8(d), when the rotational position of the second engagement portion 421a of the outer portion 420 coincides with the first protrusion 240 as the regulating jig 400 rotates, the restriction on the downward movement of the outer portion 420 by the first protrusion 240 is released, and the outer portion 420 moves downward due to gravity. As a result, the first protrusion 240 moves relatively in the up-down direction within the second engagement portion 421a. In this state, the first protrusion 240 is engaged by the second engagement portion 421a, and the relative movement in the rotational direction between the regulating jig 400 (outer portion 420) and the mount portion 200 is restricted.

[0083] 10 shows the state in which the regulating jig 400 is engaged with the mount portion 200, as described above. In this state, the relative movement of the regulating jig 400 with respect to the mount portion 200 in the vertical and rotational directions is restricted, as described above.

[0084] Next, as shown in Fig. 10, the worker inserts the attachment / detachment jig 500 into the regulating jig 400. Also, the worker engages the tip of the attachment / detachment jig 500 with the operation hole 342 formed in the fixing part 340 of the holder part 300 (see Fig. 11).

[0085] Next, the worker operates the attachment / detachment jig 500 to rotate the fixing part 340 in a direction to remove the holder part 300 from the mount part 200. When the fixing part 340, which is screwed into the female thread part 211 of the mount part 200, rotates in the direction to be removed, the parts of the holder part 300 excluding the protective part 350 (the shaft part 310, the attachment part 320, the guide part 330, and the fixing part 340), and the information acquisition device A rise relative to the mount part 200.

[0086] In this state, the guide portion 330 is guided along the notch portion 230 of the mount portion 200, thereby guiding the upward movement of the holder portion 300. In this embodiment, by providing the guide portion 330, it is possible to prevent the cable Ac taken out from the cable outlet 331 from being caught as the holder portion 300 is raised. Furthermore, as the holder portion 300 is raised, the fixing portion 340 is detached from the mount portion 200.

[0087] After the fixing part 340 is detached from the mount part 200, the part of the holder part 300 excluding the protective part 350 and the information acquisition device A move (rise) toward the regulating jig 400. The movement can be performed by pushing up using the water pressure of a water pipe or by pulling up using the detaching jig 500.

[0088] 11 , with the fixing part 340 detached from the mount part 200, the worker further rotates the fixing part 340, whereby the fixing part 340 is screwed into the female thread part 411b of the inner part 410. Further rotating the fixing part 340 raises the holder part 300 and the information acquisition device A relative to the inner part 410.

[0089] Here, when the fixing part 340 is detached from the mount part 200, the regulating jig 400 is subjected to the water pressure of the water pipe via the holder part 300. In this embodiment, the vertical movement of the regulating jig 400 relative to the mount part 200 is restricted, so that even if the holder part 300 is subjected to water pressure, the regulating jig 400 can be prevented from rising due to the water pressure.

[0090] Furthermore, in this embodiment, the rotational movement of the regulating jig 400 relative to the mounting portion 200 is restricted, so that the regulating jig 400 can be prevented from rotating (rotating together) in conjunction with the rotation of the fixing portion 340 using the attachment / detachment jig 500.

[0091] 11, the worker operates the attachment / detachment jig 500 to raise the information acquisition device A until it is located inside the protection part 350 (above the valve part 120). In this state, the worker operates the valve part 120 of the connection part 100 to stop the water flow. In this state, no water pressure is applied to the holder part 300.

[0092] Next, the worker performs the operation shown in Fig. 8 in the reverse order to release the restriction of the regulating jig 400 on the mount part 200. That is, the worker moves the outer part 420 upward and rotates the regulating jig 400 (inner part 410) in the second rotation direction (counterclockwise).

[0093] 9 and 12, the worker further rotates the regulating jig 400 in the second rotation direction (counterclockwise). As a result, the second protrusion 354 is positioned within the protector engagement portion 413a and moves relatively within the protector engagement portion 413a in the rotation direction. In this state, the second protrusion 354 is engaged with the protector engagement portion 413a, and the relative movement in the up-down direction between the regulating jig 400 (inner portion 410) and the protector 350 is restricted.

[0094] 13, the worker lifts up the regulating jig 400 while the protective part 350 is engaged as described above. This allows the holder part 300 and the information acquisition device A to be removed from the mount part 200. According to the above configuration, the information acquisition device A can be removed while being protected by the protective part 350. By removing the information acquisition device A as described above, the worker can perform maintenance such as replacing the information acquisition device A.

[0095] Next, we will explain how to attach the information acquisition device A. Attaching the information acquisition device A can be done by reversing the procedure of the above-mentioned method for removing the information acquisition device A. Therefore, in the following, parts that overlap with the above-mentioned explanation will be omitted as appropriate.

[0096] 13, the worker lowers the regulating jig 400, on which the holder unit 300 and the information acquisition device A are provided, toward the mount unit 200, and attaches the protection unit 350 to the mount unit 200. Next, as shown in FIG. 9, the regulating jig 400 is rotated in a first rotation direction (clockwise) to engage the regulating jig 400 with the mount unit 200. In this state, the relative movement of the regulating jig 400 with respect to the mount unit 200 in the up-down and rotational directions is restricted.

[0097] Next, the worker operates the valve portion 120 of the connection portion 100 to release the watertightness, which makes it possible to insert the shaft portion 310 of the holder portion 300 into the mount portion 200.

[0098] Next, the worker engages the attachment / detachment jig 500 with the fixing portion 340 of the holder unit 300, and screws the fixing portion 340 into the regulating jig 400 so as to lower the fixing portion 340 (see FIG. 11). After the fixing portion 340 is removed from the regulating jig 400 as it is lowered, the worker further rotates the fixing portion 340 (the portion of the holder unit 300 excluding the protective portion 350) to screw the fixing portion 340 into the mount unit 200. This makes it possible to attach the holder unit 300 and the information acquisition device A to the mount unit 200 (see FIGS. 1 and 10).

[0099] According to the method of attaching and detaching the information acquisition device A using the mounting device 1 as described above, the rotational and vertical movement of the regulating jig 400 relative to the mount part 200 can be regulated simply by moving the regulating jig 400 relative to the mount part 200 in the rotational direction, and in this state, the holder part 300 and the information acquisition device A can be easily attached and detached using the attachment and detachment jig 500.

[0100] Furthermore, according to this embodiment, unlike in the case where the mount unit 200 and the holder unit 300 are fixed to each other by fixing flanges to each other using bolts, nuts, etc., no fastening work using bolts, nuts, etc. is required when attaching or detaching the holder unit 300. This makes it possible to reduce the size of the mounting device 1, thereby saving space. This also makes it easy to attach and detach the holder unit 300 even in a narrow space such as inside a valve box.

[0101] As described above, the mounting device 1 according to this embodiment has the following features: An attachment device capable of attaching an information acquisition device A that acquires information about the inside of a pipeline (pipe section 11) through which a fluid flows, a mount portion 200 attached to the pipeline (pipe line portion 11) and having a through hole 210 communicating with an opening 11b formed in the pipeline (pipe line portion 11); a holder portion 300 that is inserted into the through-hole 210 to be detachably attached to the mount portion 200 and to which the information acquisition device A is attached; a jig (regulating jig 400) used to attach and detach the holder portion 300 to and from the mount portion 200; Equipped with The restricting jig 400 is a first restricting portion (first mount restricting portion 412) that restricts relative movement of the mount portion 200 in the axial direction of the opening 11b with respect to the mount portion 200 by engaging with the mount portion 200; a second restricting portion (second mount restricting portion 421) that restricts relative movement with respect to the mount portion 200 in a rotational direction around the axis of the opening 11b by engaging with the mount portion 200; Equipped with By moving the regulating jig 400 relative to the mount portion 200 in the rotational direction, the first mount regulating portion 412 and the second mount regulating portion 421 can be engaged with the mount portion 200. This configuration allows for convenient attachment and detachment of the information acquisition device A. That is, simply by moving the regulating jig 400 relative to the mount unit 200 in the rotational direction, it is possible to restrict the rotational and axial movement of the mount unit 200 relative to the regulating jig 400, and in this state, it is possible to easily attach and detach the holder unit 300 to and from the mount unit 200 using the regulating jig 400.

[0102] Moreover, the mount portion 200 is It has a first protrusion 240 that protrudes outward, The first mount restricting portion 412 is a first engaging portion (412a) that opens in the rotational direction and is engageable with the first protrusion (240) when the first mount restricting portion (412) moves in the rotational direction; The second mount restricting portion 421 is It has a second engagement portion 421a that opens downward and can engage with the first protrusion 240 when the rotational position relative to the first protrusion 240 is aligned, by causing the second mount regulating portion 421 to move downward. With this configuration, by engaging the first engagement portion 412a and the second engagement portion 421a with the first protrusion 240, the movement of the regulating jig 400 relative to the mount portion 200 in the vertical and rotational directions can be regulated.

[0103] The holder portion 300 has: a fixing part (340) that is detachably fixed to the mount part (200) by a predetermined operation; The restricting jig 400 is The fixing portion 340 removed from the mount portion 200 is provided with a fixed portion (first insertion hole 411a) to which the fixing portion 340 is detachably fixed. With this configuration, the holder portion 300 can be fixed to the regulating jig 400 and can be easily removed.

[0104] Moreover, the mounting device 1 according to this embodiment is The mount portion 200 is formed with a notch portion 230 extending in the axial direction, The holder portion 300 is a shaft portion 310 to which the information acquisition device A is attached and through which a cable Ac of the information acquisition device A can be wired; a guide portion 330 provided on the shaft portion 310 and guided along the notch portion 230; a cable outlet 331 through which the cable Ac inside the shaft portion 310 can be taken out to the outside of the holder portion 300; It is equipped with the following. With this configuration, the guide portion 330 is guided by the notch portion 230, thereby enabling the positioning of the information acquisition device A. Furthermore, the guide portion 330 can prevent the cable Ac from being caught.

[0105] The holder portion 300 has: a shaft portion 310 to which the information acquisition device A is attached; a protection section (350) that is disposed within the through-hole (210) of the mount section (200), has an insertion hole (351) formed therein through which the shaft section (310) and the information acquisition device (A) are inserted, and that can protect the information acquisition device (A); It is equipped with the following. With this configuration, the protective part 350 is provided, and thus it is possible to prevent the information acquisition device A from coming into contact with the mount part 200 and the like when the holder part 300 is attached or detached.

[0106] In addition, the regulating jig 400 is a third restricting portion (protector restricting portion 413) that restricts relative movement in the axial direction with respect to the protector 350 when engaged with the protector 350; When the engagement of the first mount regulating portion 412 and the second mount regulating portion 421 with the mount portion 200 is released, the regulating jig 400 can be moved relative to the protective portion 350 in the rotational direction, thereby making it possible to engage the protective portion regulating portion 413 with the protective portion 350. By configuring it in this manner, the relative axial movement of the protective part 350 with respect to the regulating jig 400 can be restricted simply by moving the regulating jig 400 relative to the protective part 350 in the rotational direction, and in this state, the protective part 350 can be easily attached and detached using the regulating jig 400.

[0107] The protective portion 350 is A second protrusion 354 protruding outward from the mount portion 200 is provided. The protection portion restricting portion 413 is The protection portion restricting portion 413 has a third engaging portion (protection portion engaging portion 413a) that opens in the rotation direction and is capable of engaging with the second protrusion 354 when the protection portion restricting portion 413 moves in the rotation direction. With this configuration, by engaging the protection portion engaging portion 413a with the second protrusion 354, the relative movement of the protection portion 350 with respect to the regulating jig 400 in the axial direction can be regulated.

[0108] In addition, the second protrusion 354 is The pipe (pipe section 11) has a pressure outlet 354a through which the pressure of the fluid in the pipe (pipe section 11) can be taken out. With this configuration, the second protrusion 354 can be used as a portion for extracting the pressure of the fluid.

[0109] The method for attaching and detaching the information acquisition device A according to this embodiment is as follows: A method for attaching and detaching an information acquisition device A using the attachment device 1 according to this embodiment, By rotating the regulating jig 400 in the rotation direction relative to the mount portion 200, the first mount regulating portion 412 and the second mount regulating portion 421 are engaged with the mount portion 200, The holder portion 300 is attached to and detached from the mount portion 200 in a state in which the first mount restricting portion 412 and the second mount restricting portion 421 are engaged with the mount portion 200 . By configuring in this way, the information acquisition device A can be attached and detached in a convenient manner.

[0110] The restricting jig 400 according to this embodiment is one embodiment of the jig according to the present invention. The first mount restricting portion 412 according to this embodiment is one embodiment of the first restricting portion according to the present invention. The second mount restricting portion 421 according to this embodiment is one embodiment of the second restricting portion according to the present invention. The first insertion hole 411a according to this embodiment is one embodiment of a fixed portion according to the present invention. The protection restriction portion 413 according to this embodiment is an embodiment of a third restriction portion according to the present invention. The protector engagement portion 413a according to this embodiment is one embodiment of a third engagement portion according to the present invention. The pipe section 11 according to this embodiment is one embodiment of the pipe according to the present invention.

[0111] Although the first embodiment of the present invention has been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention described in the claims.

[0112] For example, the shape of the attachment device 1 shown in this embodiment is an example, and is not limited to the above-mentioned example and can be changed as appropriate. In particular, the shape of the regulating jig 400 (the inner part 410 and the outer part 420) is not limited to the above-mentioned example, and various shapes that can engage with the first protrusion 240 can be adopted.

[0113] In addition, in the present embodiment, an example has been shown in which the protection portion restricting portion 413 is provided in the restricting jig 400, but the present invention is not limited to this. For example, the protection portion restricting portion 413 may not be provided. In this case, the attachment device 1 may not be provided with the protection portion 350.

[0114] In addition, in this embodiment, the information acquisition device A is configured such that the strain gauge Ab is provided on the surface of the plate portion Aa, but is not limited to this. The information acquisition device A can have any configuration.

[0115] In addition, in this embodiment, the information acquisition device A acquires the flow velocity of water in a water pipe, but is not limited to this. For example, the information acquisition device A may acquire various other information such as pressure, temperature, vibration, sound, image (video), turbidity, etc. in the pipe.

[0116] Here, when acquiring the temperature, image (video), or turbidity inside the pipe, a thermometer, camera, or turbidity meter may be used at the tip of the holder part 300 instead of, or in addition to, the information acquisition device A of this embodiment.

[0117] In addition, in the present embodiment, an example has been shown in which the information acquisition device A is provided so as to be located inside the pipeline portion 11 of the valve device 10, but the present invention is not limited to this. For example, the information acquisition device A may be provided so as to be located inside the pipeline of a pipe (such as a water pipe).

[0118] In addition, in the present embodiment, an example has been shown in which the mounting device 1 is mounted to the valve device 10, but the present invention is not limited to this. For example, the mounting device 1 may be mounted to a water distribution valve or the like provided in a pipe (such as a water pipe).

[0119] In addition, in the present embodiment, an example has been shown in which a water pipe is used as the pipe on which the mounting device 1 is installed, but the present invention is not limited to this. The mounting device 1 can be installed in various pipes (pipes) through which fluids flow, such as other metal pipes and pipes made of resin (resin pipes). [Explanation of symbols]

[0120] 1 Mounting device 100 Connection 200 Mounting section 300 Holder part 400 Regulating Jig 500 Attachment / detachment jig A Information acquisition device

Claims

1. An attachment device capable of attaching an information acquisition device for acquiring information about the inside of a pipeline through which a fluid flows, a mount portion attached to the pipeline and having a through hole communicating with an opening formed in the pipeline; a holder portion that is inserted into the through hole and is detachably attached to the mount portion, and to which the information acquisition device is attached; a jig used to attach and detach the holder portion to and from the mount portion; Equipped with The jig is a first restriction portion that is engaged with the mount portion to restrict relative movement of the opening portion in the axial direction with respect to the mount portion; a second restriction portion that is engaged with the mount portion to restrict relative movement with respect to the mount portion in a rotational direction about the axis of the opening; Equipped with The jig is moved relative to the mount portion in the rotation direction, whereby the first restricting portion and the second restricting portion can be engaged with the mount portion. Mounting device.

2. The mount portion is a first protrusion protruding outward; The first restricting portion is a first engagement portion that opens in the rotational direction and is engageable with the first protrusion when the first restriction portion moves in the rotational direction; The second restriction portion is a second engaging portion that opens downward and is engageable with the first protrusion when the second restricting portion moves downward when the second restricting portion is positioned in the same position as the first protrusion in the rotational direction; The mounting device of claim 1 .

3. The holder portion is a fixing portion that is detachably fixed to the mount portion by a predetermined operation; The jig is The fixing part detached from the mount part includes a fixing part to which the fixing part is detachably fixed. The mounting device of claim 1 .

4. The mount portion has a notch portion formed therein that extends in the axial direction, The holder portion is a shaft portion to which the information acquisition device is attached and through which a cable of the information acquisition device can be wired; a guide portion provided on the shaft portion and guided along the notch portion; a cable outlet through which the cable inside the shaft portion can be taken out to the outside of the holder portion; Equipped with The mounting device of claim 1 .

5. The holder portion is a shaft portion to which the information acquisition device is attached; a protection section that is disposed within the through-hole of the mount section, has an insertion hole formed therein through which the shaft section and the information acquisition device are inserted, and is capable of protecting the information acquisition device; Equipped with The mounting device of claim 1 .

6. The jig is a third restricting portion that restricts relative movement in the axial direction with respect to the protective portion when engaged with the protective portion; When the engagement of the first restricting portion and the second restricting portion with the mount portion is released, the jig is moved relative to the protective portion in the rotational direction, thereby making it possible to engage the third restricting portion with the protective portion.

6. The mounting device of claim 5.

7. The protective part is a second protrusion protruding outward beyond the mount portion; The third restriction portion is a third engagement portion that opens in the rotational direction and is engageable with the second protrusion when the third restriction portion moves in the rotational direction; 7. The mounting device of claim 6.

8. The second protrusion is a pressure outlet capable of extracting the pressure of the fluid in the pipeline; 8. The mounting device of claim 7.

9. A method for attaching and detaching an information acquisition device using the attachment device according to any one of claims 1 to 8, comprising: By rotating the jig in the rotation direction relative to the mount portion, the first restricting portion and the second restricting portion are engaged with the mount portion; the holder portion is attached to and detached from the mount portion in a state in which the first restricting portion and the second restricting portion are engaged with the mount portion. A method for attaching and detaching an information acquisition device.

Images