WO2016163272A1 - 水道メータと漏水判定器との連結機構及びこの連結機構を用いた漏水判定器 - Google Patents
水道メータと漏水判定器との連結機構及びこの連結機構を用いた漏水判定器 Download PDFInfo
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- WO2016163272A1 WO2016163272A1 PCT/JP2016/060097 JP2016060097W WO2016163272A1 WO 2016163272 A1 WO2016163272 A1 WO 2016163272A1 JP 2016060097 W JP2016060097 W JP 2016060097W WO 2016163272 A1 WO2016163272 A1 WO 2016163272A1
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- water
- water meter
- main body
- body case
- water leakage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
Definitions
- the present invention relates to a mechanism for connecting a water leakage determination device and a water meter for water leakage inspection at the time of meter reading of the water meter, and in particular, to perform a water leakage inspection by connecting the water leakage determination device to the water meter in a stable state. It relates to a connecting mechanism that can be used.
- tap water supplied to the consumer is further branched from the water distribution pipe 32 via a water distribution pipe 32 branched from the water main pipe 31.
- Water is supplied to consumers through the water supply pipe 33.
- a water meter 34 is connected to the branch point from the water distribution pipe 32 to the water supply pipe 33 so that the amount of water supply (water consumption) can be measured.
- the water main 31 to the water meter 34 are under the jurisdiction of the Waterworks Bureau, and the portion after the water supply pipe 33 after the water meter 34 is under the jurisdiction of the consumer who is the owner of the water meter 34.
- the water meter 34 is disposed together with a stop cock 36 in a meter box 35 covered with an openable / closable lid 35a, and the measured water supply amount is displayed on the display surface 34a of the display unit 34a of the water meter 34.
- 34b The display surface 34b is configured by a transparent plate formed of a transparent member such as glass or synthetic resin and a water meter head ring 34e for fastening the transparent plate so that the surface thereof is not soiled by dust or mud.
- a water meter lid 34c is attached. There is also a type in which an upper lid (not shown) is attached to the water meter lid 34c so as to be freely opened and closed.
- a method of performing a water leak test at the same time as a water meter reading by a water meter clerk a method of listening to a water leak sound (acoustic vibration) transmitted from a water leak point with a listening stick, or a display surface 34b of a display unit 34a of a water meter 34
- a method of detecting a leak sound transmitted from a leak location by bringing a correlation type leak detector for leak test into contact with a transparent plate covering the leak.
- water leakage monitoring devices are attached to all the water meters 34 so that specific acoustic vibrations caused by water leakage sound transmitted from the water leakage point to the water supply pipe 33 are detected so that water leakage is constantly monitored. .
- the thing of patent document 1 is detachable to the water meter 50 main body which is connected to the water supply pipe branched from the water distribution pipe to the customer's house and measures the amount of water supply (water consumption) as shown in FIG.
- the water meter lid 52 that covers the metering display panel 51 of the main body of the water meter 50 so as to be openable and closable is used to supply water based on a specific acoustic vibration caused by a water leakage sound detected from the main body of the water meter 50.
- Some have a water leakage determination means for determining the possibility of water leakage in the pipe, a means for outputting the determination contents to the outside, and a built-in power supply 53 for supplying an operating power supply for each of the above means.
- a water leak sound acoustic vibration
- both methods are affected by ambient noise and unnecessary vibrations (wind effects and camera shake, etc.). Therefore, it was difficult to detect water leakage accurately.
- both devices are large in size and inconvenient for the water meter reader to carry.
- a correlation type water leak detector or the like of a type that determines whether or not water leaks by directly connecting to the water meter 34 at the time of water leak inspection has a large apparatus as described above.
- the water meter 34 and the correlation type water leak detector are connected when the water leak inspection is performed using this device.
- the connection state between the two is unstable and the operation is complicated. . Therefore, at the time of water meter reading, water meter inspectors must focus on nerves while supporting a water leak detector with one hand, and conduct a leak test, and it is difficult for water meter readers to conduct a leak test in a short time. Met.
- the display surface 34b of the water meter 34 is covered with a transparent glass plate 34d. Therefore, when inspecting for water leakage, the device is placed on the surface of the glass plate (transparent plate) 34d, and a sensor is brought into contact with the glass surface to detect acoustic vibration from the water leakage location to detect water leakage. We are inspecting.
- the glass plate 34d is very slippery, and in addition, the display surface 34b of the water meter 34 cannot be said to be all installed horizontally, and is often tilted. The stability of the water leak detection device placed on the meter lid 34c covering the cover 34b is very poor and easily falls.
- This invention has been made to solve the above-mentioned problems, and as a whole, it is possible to suppress the cost as much as possible as well as to the consumer, and at the same time to conduct a water leak test at the time of meter reading of a water meter,
- the purpose of the present invention is to provide a water leakage judgment device that can be reduced in size and weight so as not to be a burden of carrying, and that can be stably connected to a water meter at the time of water leakage inspection.
- the invention according to claim 1 is a water meter having a water meter lid that is disposed in a meter box and includes a transparent plate that covers a display surface and a water meter head ring that fastens the transparent plate.
- the water leakage determination device accommodates electrical components inside and has an opening at the center of the bottom surface.
- the main body case is arranged in parallel with the bottom surface of the main body case via a gap, and is arranged at an equal angle with respect to the vertical center line of the water leakage determination device, and the tip protrudes from the lower surface.
- Sensing that can detect water leakage noise by contacting the support plate fixed to the bottom of the main body case with a gap by the leg and the tip of the three legs protruding from the support plate against the transparent plate of the water meter Department and
- the space between the bottom surface of the main body case and the support plate is a hollow guide that hangs from the bottom surface of the main body case to the support plate.
- the acceleration sensor unit of the electrical component is housed in the guide and the support plate. In parallel with the bottom surface of the main body case in contact with the center case, and the vertical center line is aligned with the center line, and the acceleration sensor unit is positioned and fixed so that the acceleration sensor unit is positioned in the gap.
- the power supply unit of the electrical component is housed in the main body case, and the vertical center line is aligned with the center line of the water leakage determination device, and is positioned in parallel above the acceleration sensor unit and fixed to the main body case.
- the circuit board unit of the electrical component matches the center line in the vertical direction with the center line of the water leakage determination device, and is positioned parallel to the power supply unit and fixed to the main body case.
- the tip of the three legs of the water leakage judgment device is inscribed in the water meter head ring It is connected with a water meter, and the water leakage determination device is a connection mechanism between the water meter and the water leakage determination device, characterized in that it is independent of the water meter in a stable state.
- the invention according to claim 2 is the invention according to claim 1, wherein the leg portion is curved in the outer peripheral direction with respect to the center line.
- the invention according to claim 3 is the invention according to any one of claims 1 to 2, wherein the guide is integrally formed with a collar portion positioned at an equal angle with respect to the center line. .
- a water meter having a water meter lid disposed in a meter box and comprising a transparent plate covering a display surface and a water meter head ring for fastening the transparent plate, and the water meter lid.
- the electrical parts are housed, and an opening is provided in the center of the bottom surface so that the body case and the bottom surface of the body case face each other in parallel with a gap.
- the support plate having the main body case and the gap between the bottom surface of the main body case and the support plate are arranged at an equal angle with respect to the vertical center line of the water leakage determination device, and the front end protrudes from the lower surface.
- the main body case is suspended from the bottom surface of the main body case to the support plate, and the inside is composed of a hollow guide.
- the main body case is sequentially directed upward from the inner bottom surface to the power supply unit of the electrical component and the circuit board.
- the unit is stored with its vertical center line aligned and parallel to the bottom, and fixed to the main body case, and the tip of the three legs protruding from the lower surface of the support plate is generated due to water leakage.
- the sensor has an acceleration sensor unit inside and a guide that is placed in parallel with the bottom of the main unit case in contact with the support plate, and the vertical center line matches the center line.
- the height of the leak detector is limited by positioning and fixing the opening so that the acceleration sensor unit is positioned in the gap, and the center of gravity of the leak detector is lowered.
- the determinator By placing the determinator on the top of the water meter lid, it is connected to the water meter with its three leg tips inscribed in the water meter head ring, and the leak detector is stable.
- a leakage determination unit characterized in that the free-standing in water meter in state.
- the invention according to claim 5 is the invention according to claim 4, wherein the leg is curved in the outer peripheral direction with respect to the center line.
- the invention according to claim 6 is the invention according to any one of claims 4 to 5, wherein the guide is integrally formed with a collar portion positioned at an equal angle with respect to the center line. .
- the leak detection device is provided with the support plate 3 attached to the leak detection device and serves as a sensing unit that senses vibration noise caused by the leak. Since the tip ends of the three legs are firmly inscribed in the water meter head ring 34e (see FIG. 3), the connection state between the water leakage determination device 1 and the water meter 34 is very stable. Even if the transparent plate covering the display surface 34b of the water meter 34 is a slippery glass plate or the water meter 34 is tilted, the leak detector 1 is placed on the glass surface of the water meter 34. It can be connected in a stable and independent state.
- the center of gravity of the water leakage determination device 1 can be lowered. I can do it.
- the acceleration sensor unit 11 is disposed in the gap 8 between the bottom surface of the main body case 2 and the support plate 3 and the circuit board 13 is disposed in parallel with the bottom surface of the main body case 2, thereby reducing the height of the water leakage determination device.
- the stability of the leak detector 1 installed on the display surface 34b of the water meter 34 is improved.
- the guide 5 in which the acceleration sensor unit 11 is housed and the support plate 3 of the main body case 2 are also heavy, and there is an effect of further lowering the center of gravity of the water leakage determination device 1.
- the stability is improved without being affected by it.
- connection state between the leg portion 9 of the water leakage determination device 1 and the water meter head ring 34e of the water meter 34 is further strengthened, and the stability of the connection state between the water leakage determination device 1 and the water meter 34 can be further improved. I can do it.
- the flange portion of the guide has an effect of further lowering the center of gravity of the water leakage determination device 1, and the stability of the connection state between the water leakage determination device 1 and the water meter 34 can be further improved.
- the Example of this invention is shown and it is sectional drawing of the water leak determination device 1 by this invention.
- BRIEF DESCRIPTION OF THE DRAWINGS It shows the Example of this invention, and is the external view of the water leak determination device 1 by this invention, (a) is a top view, (b) is a front view, (c) is a bottom view, (d) is a right view.
- (E) is the principal part enlarged view of the panel surface 14a.
- a prior art example is shown, (a) is explanatory drawing which shows the piping state of a water pipe, (b) is a top view of the display part of a water meter. It shows a conventional example, and is a water meter lid with a water leakage monitoring function, (a) is a top view of the main part, (b) is a side sectional view.
- the water leakage determination device contains an electrical component inside and a main body case with a transparent opening at the center of the bottom, and the main body. In parallel with the bottom of the case through a gap, it is placed at an equal angle with respect to the vertical center line of the leak detector, and a gap is formed in the bottom of the main body case by three legs protruding from the bottom.
- the interior of the main body case hanging from the bottom surface of the main body case to the support plate is made up of a hollow guide, and the acceleration sensor unit of the electrical component is housed in the guide and is in contact with the support plate.
- the power supply unit of the electrical component is arranged parallel to the bottom surface of the case and positioned and fixed in the opening so that the center line in the vertical direction matches the center line and the acceleration sensor unit is positioned in the gap.
- this water leakage determination device is placed on the upper surface of the water meter lid so that the three leg tips of the water leakage determination device are connected to the water meter head ring and connected to the water meter.
- This is a connection mechanism between a water meter and a leak detector, which is characterized by being independent of the water meter in a stable state.
- the leg portion is curved in the outer peripheral direction with respect to the center line, and the guide is integrally formed with a flange portion positioned at an equal angle with respect to the center line.
- FIG. 1 is a cross-sectional view of a water leak determination device 1 according to the present invention
- FIG. 2 is an external view of the water leak determination device 1 according to the present invention
- 2A is a top view and shows a panel surface 14a of the display unit 14.
- FIG. 2B is a front view
- FIG. 2C is a bottom view
- FIG. 2D is a right side view
- FIG. It is a principal part enlarged view of 14a.
- the water meter 34 is a conventional water meter that has been conventionally used, and is disposed in a meter box 35 buried in the ground together with a stop cock 37.
- the display surface 34b of the display unit 34a of the water meter 34 is covered with a meter lid 34c.
- the meter lid 34 includes a circular transparent plate 34d formed of a transparent member such as glass and a water meter head ring 34e that fastens the transparent plate 34d.
- the water meter head ring 34e has a structure in which a part thereof protrudes from the surface of the transparent plate 34d.
- the water leakage determination device 1 includes a rectangular main body case 2, a circular support plate 3, and the support plate 3 fixed to the main body case 2 with screws.
- the three bolts 4 and nuts 4a constituting the leg portion 9 and an acceleration sensor unit 11 to be described later are housed, and are constituted by a cylindrical guide 5 for protecting the same.
- the main body case 2 is for housing electrical components, and the upper end opening is covered with a lid 7 so that it can be opened and closed, and an opening 6 is formed through the center of the bottom.
- the support plate 3 is arranged in parallel with the bottom surface of the main body case 2 and includes three sets of bolts 4 and nuts 4a that are radially positioned at an equal angle (120 degrees) around the center line A in the vertical direction.
- the screw is fixed to the bottom surface of the main body case 2 via the gap 8. Therefore, the three sets of bolts 4 and nuts 4 a constitute the three legs 9 of the water leakage determination device 1.
- the tips of the leg portions 9 protrude downward from the support plate 3.
- the tip of the leg portion 9 comes into contact with the glass plate 34d covering the display surface 34b of the water meter 34, and sensing for detecting vibration due to water leakage. It is part 10.
- the support plate 3 has a circular shape, but is not limited to this shape, and may be a polygonal shape such as a quadrangle or a pentagon, and is horizontal to the vertical center line A. Any shape having a balanced direction may be used.
- leg portion 9 of the water leakage determination device 1 is constituted by a bolt and a nut (high nut), the height of the three leg portions 9 can be adjusted as necessary.
- leg part 9 is comprised by the volt
- the connection between the water leakage determination device 1 and the water meter 34 is in the state where the leg portions 9 are straight upright. More stable.
- a guide 5 having a hollow inside is disposed in a state of hanging down from the bottom surface of the main body case 2 toward the support plate 3.
- the other end of the guide 5 is in an open state.
- the outer wall of the guide 5 is formed with a flange portion 5a that is positioned radially at an equal angle with respect to the vertical center line A and that extends integrally.
- the main body case 2 and the guide 5 and the flange portion 5a are integrally formed.
- the present invention is not limited to this, and different parts may be joined to each other. good.
- a relatively heavy acceleration sensor unit 11 is housed among the electrical components of the water leakage determination device 1.
- One end of the acceleration sensor unit 11 is fixed to the inner wall of the guide 5 via a case 11a in a state of protruding from the opening 6 on the bottom surface of the main body case 2 to the gap 8, and the other end of the acceleration sensor unit 11 is The positioning is held in contact with the support plate 3.
- the vertical center line of the acceleration sensor unit 11 is positioned so as to coincide with the vertical center line A.
- the acceleration sensor unit 11 is housed in the guide 5 and is disposed in the gap 8 located between the bottom surface of the main body case 2 and the support plate 3. Accordingly, the height (length) of the main body case 2 in the vertical direction can be greatly shortened, and the center of gravity of the water leakage determination device 1 as a whole is lowered, so that the water meter 34 and the water leakage determination device are compared with the conventional product.
- the connection state with 1 can be stabilized.
- the shape of the guide 5 is cylindrical.
- the shape of the guide 5 is not limited to this, and the cross section may be a polygon such as a quadrangle or a pentagon, and the acceleration sensor unit 11 can be accommodated therein.
- any shape may be used.
- the center of gravity of the water leakage knitting device 1 can be further lowered, so that when the water leakage determination device 1 and the water meter 34 are connected, Stability is increased.
- the power unit 12 having the largest weight among the electrical components of the water leakage determination device 1 is housed in the main body case 2, and the vertical center lines A are aligned above the acceleration sensor unit 11. However, it is positioned in a state of being overlapped in parallel and fixed to the main body case 2. Therefore, the center of gravity of the water leakage determination device 1 is further lowered. Further, the circuit board unit 13 of the electrical component is positioned in parallel while being aligned with the vertical center line A of the power supply unit 12 and the acceleration sensor unit 11 and is housed and fixed on the lid 7 side of the main body case 2. Yes. Therefore, since the circuit board that has been conventionally arranged in the vertical direction is arranged in the horizontal direction, the height of the main body case can be greatly reduced, and the center of gravity can be lowered.
- the lid 7 covers the upper end opening of the main body case 2 and is provided with a display unit 14 as shown in FIG. Accordingly, the lid 7 is formed with holes through which the panel surface 14a of the display unit 14 and the various display lamp holes 14b are pierced, and LEDs and the like are displayed in these holes. A light is provided.
- the display 17 such as “measuring” and “finished” is displayed by the color LED.
- a liquid crystal display is used for the display unit 14.
- the USB connector 18 is provided on the right side surface of the main body case 2 together with a waterproof connector cover.
- the USB connector 18 enables the result of the water leakage inspection to be output to an external device (such as a PC), and allows the firmware of the water leakage determination device 1 to be updated and the power supply unit 12 to be charged.
- the water meter 34 is read.
- the water meter inspector opens the lid 35a of the meter box 35, and then reads the numerical value (water usage) displayed on the display surface 34b of the water meter 34. This action ends the water meter reading.
- the leak detector 1 is placed on the glass plate 34d of the water meter lid 34c that covers the display surface 34b of the water meter 34. At this time, the water leakage determination device 1 and the water meter 34 are connected with the tips of the three legs 9 of the water leakage determination device 1 inscribed in the water meter head ring 34e. As described above, the gap 8 is interposed between the main body case 2 and the support plate 3 of the water leakage determination device 1, and the acceleration sensor unit 11 having a relatively large weight is disposed in the gap 8.
- the center of gravity of the water leakage determination device 1 is very low compared to the conventional product.
- the tip portions of the leg portions 9 which are the three sensing portions 10 are firmly inscribed in the water meter head ring 34e protruding from the surface of the glass plate 34d. Therefore, the water leakage determination device 1 can be made to stand on the glass plate 34d surface of the meter lid 34c of the water meter 34 in a stable state by the three legs 9, so that the water leakage determination device 1 and the water meter 34 The coupling mechanism is very stable.
- the relatively large acceleration sensor unit 11 is disposed in the gap 8, and the circuit board unit 13 is also disposed in parallel to the main body case 2. It is designed so that its vertical height is also low. Therefore, even if the water leakage determination device 1 and the water meter 34 are connected, they are contained in the meter box 35, so that they are not affected by the wind and the stability is further improved.
- the water meter inspector turns on the operation switch 16 and reads the panel surface 14a of the display unit 14.
- a water leakage sound is detected by the water leakage determination device 1, and the result is displayed on the panel surface 14a as one of three stages of water drop marks 15 indicating the suspicion of water leakage.
- This result can be output to an external device (such as a PC) via the USB connector 18 or the built-in Bluetooth®.
- the present invention can be used for water meters laid throughout the country because a water leak inspection can be performed at the same time as a water meter reading.
- Water leak determination device 2 Main body case of the water leak determination device 1 3 Support plate 5 Guide 5a Brim part of guide 5 8 Gap 9 Leg 10 Sensing part 11 Acceleration sensor unit 12 Power supply unit 13 Circuit board unit 34 Water meter 34b Water meter 34 Display surface 34c Meter cover 34d of water meter 34d Glass plate 34 of water meter 34e Water meter head ring of water meter 34 A Vertical center line of leak detector 1
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Abstract
Description
脚部は、中心線に対して外周方向に湾曲させたものであり、ガイドには、中心線に対して等角度に位置決めされたつば部を一体的に形成したものである。
図1~図2は、この発明の実施例を示すもので、図1はこの発明による漏水判定器1の断面図、図2はこの発明による漏水判定器1の外形図である。図2(a)は上面図で、表示部14のパネル面14aを示しており、(b)は正面図、(c)は底面図、(d)は右側面図、(e)はパネル面14aの要部拡大図である。
2 漏水判定器1の本体ケース
3 支持板
5 ガイド
5a ガイド5のつば部
8 間隙
9 脚部
10 感知部
11 加速度センサユニット
12 電源ユニット
13 回路基板ユニット
34 水道メータ
34b 水道メータ34の表示面
34c 水道メータ34のメータ蓋
34d 水道メータ34のガラス板
34e 水道メータ34の水道メータヘッドリング
A 漏水判定器1の垂直方向の中心線
Claims (6)
- メータボックス内に配設され、表示面を覆う透明板とこの透明板を締結する水道メータヘッドリングとからなる水道メータ蓋を有する水道メータと、
この水道メータ蓋の上面に載置して漏水検査を行う漏水判定器と
からなる水道メータと漏水判定器との連結機構において、
前記漏水判定器は、内部に電気部品を収納するとともに、底面中央部に開口部を透設した本体ケースと、
この本体ケース底面と間隙を介して平行に対向配置するとともに、前記漏水判定器の垂直方向の中心線に対して、等角度に配置され、先端が下面から突出した3本の脚部により前記本体ケース底面に間隙を介して固定された支持板と、
この支持板から突出する前記3本の脚部先端を、前記水道メータの前記透明板に当接することにより、漏水音を探知可能な感知部と、
前記本体ケース底面と前記支持板との前記間隙に配設され、前記本体ケース底面から前記支持板へと垂下する内部が空洞のガイドとからなり、
前記電気部品の加速度センサユニットは、前記ガイド内に収納するとともに、前記支持板に当接した状態で前記本体ケース底面に平行に配置するとともに、垂直方向の中心線を、前記中心線と合致させ、且つ、前記間隙に加速度センサユニットが位置するように前記開口部に位置決めして固定し、
前記電気部品の電源ユニットは、前記本体ケースに収納するとともに、垂直方向の中心線を、前記漏水判定器の中心線と合致させ、且つ、前記加速度センサユニットの上方に平行に位置決めして前記本体ケースに固定し、
前記電気部品の回路基板ユニットは、垂直方向の中心線を、前記漏水判定器の中心線と合致させ、且つ、前記電源ユニットに平行に位置決めして本体ケースに固定して、前記漏水判定器の低重心化を図り、
漏水検査時には、この漏水判定器を前記水道メータ蓋上面に載置することにより、前記漏水判定器の3本の前記脚部先端が前記水道メータヘッドリングに内接した状態で前記水道メータと連結され、前記漏水判定器は安定した状態で前記水道メータに自立すること
を特徴とする水道メータと漏水判定器との連結機構。 - 前記脚部は、前記中心線に対して外周方向に湾曲させたこと
を特徴とする請求項1に記載の水道メータと漏水判定器との連結機構。 - 前記ガイドには、前記中心線に対して等角度に位置決めされたつば部を一体的に形成したこと
を特徴とする請求項1~請求項2の何れかに記載の水道メータと漏水判定器との連結機構。 - メータボックス内に配設され、表示面を覆う透明板とこの透明板を締結する水道メータヘッドリングとからなる水道メータ蓋を有する水道メータと、
この水道メータ蓋の上面に載置して漏水検査を行う漏水判定器において、
電気部品を収納するとともに、底面中央部に開口部を透設し本体ケースと、
この本体ケース底面と間隙を介して平行に対向配置するとともに、前記漏水判定器の垂直方向の中心線に対して、等角度に配置され、先端が下面から突出した3本の脚部により前記本体ケースを有する支持板と、
前記本体ケース底面と前記支持板との前記間隙に配設され、前記本体ケース底面から前記支持板へと垂下するとともに、内部が空洞のガイドとからなり、
前記本体ケースは、内部底面から上方に向けて、順次、電気部品の電源ユニットと回路基板ユニットとを、垂直方向の中心線を合致させ、且つ、底面と平行に位置決めして収納するとともに、前記本体ケースに固定し、
前記支持板の下面から突出する前記3本の脚部先端を、漏水により発生する振動を探知する感知部とし、
前記ガイドは、内部に加速度センサユニットを収納するとともに、前記支持板に当接した状態で前記本体ケース底面に平行に配置し、垂直方向の中心線を、前記中心線と合致させ、且つ、前記間隙に前記加速度センサユニットが位置するように前記開口部に位置決めして固定することにより、前記漏水判定器の高さを制限するとともに、前記漏水判定器を低重心化し、
漏水検査時には、この漏水判定器を前記水道メータ蓋上面に載置することにより、前記漏水判定器の3本の前記脚部先端が前記水道メータヘッドリングに内接した状態で前記水道メータと連結され、前記漏水判定器は安定した状態で前記水道メータに自立すること
を特徴とする漏水判定器。 - 前記脚部は、前記中心線に対して外周方向に湾曲させたこと
を特徴とする請求項4に記載の漏水判定器。 - 前記ガイドには、前記中心線に対して等角度に位置決めされたつば部を一体的に形成したこと
を特徴とする請求項4~請求項5の何れかに記載の漏水判定器。
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JPH10267783A (ja) * | 1997-03-25 | 1998-10-09 | Akuasu Kk | 水道漏水検出方法 |
JP2013068587A (ja) * | 2011-09-22 | 2013-04-18 | Nippon Water Solution:Kk | 携帯型時間積分式漏水発見装置 |
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JP2004191139A (ja) | 2002-12-10 | 2004-07-08 | Akuasu Kk | 漏水監視機能付水道メータ蓋および水道メータ |
US7228726B2 (en) * | 2004-09-23 | 2007-06-12 | Lawrence Kates | System and method for utility metering and leak detection |
EP2107357A1 (en) * | 2008-04-03 | 2009-10-07 | HERA S.p.A. | Method for detecting the presence of leaks in a water distribution network and kit for applying the method |
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