AU2016246860B2

AU2016246860B2 - The connection mechanism between a water service meter and a leakage-of-water judging machine, and the leakage-of-water judging machine using this connection mechanism

Info

Publication number: AU2016246860B2
Application number: AU2016246860A
Authority: AU
Inventors: Toru Sakemoto; Kenichi Suzuki
Original assignee: Fuji Tecom Inc; Veolia Jenets KK
Current assignee: Fuji Tecom Inc; Veolia Jenets KK
Priority date: 2015-04-10
Filing date: 2016-03-29
Publication date: 2021-02-25
Anticipated expiration: 2036-03-29
Also published as: WO2016163272A1; AU2016246860A1; JP6254972B2; JP2016200500A; KR20170135838A; CN107430045A; KR102591152B1; CN107430045B

Abstract

[Problem] To provide a linking mechanism with which it is possible to link a water leak determining unit to a water meter in a stable condition in order to detect water leaks. [Solution] A water meter lid which covers a display screen of a water meter is formed from a transparent plate and a water meter head ring which tightens the transparent plate. The water leak determining unit comprises: a main body case inside which electric components are accommodated; a support plate disposed parallel to and facing a bottom surface of the main body case, across a gap, and which is secured to the bottom surface of the main body case across said gap by means of three leg portions which are disposed at equal angles around a vertical centerline, distal ends of the leg portions protruding from a lower surface of the support plate; a sensing portion in which the sound of water leaks is detected by bringing the distal ends of the three leg portions protruding from the support plate into contact with the transparent plate of the water meter; and a guide which is installed in the gap between the bottom surface of the main body case and the support plate, and which hangs down from the bottom surface of the main body case toward the support plate. An acceleration sensor unit is accommodated in the guide, and is positioned and secured in such a way that the acceleration sensor unit is located in the gap. A power supply unit is accommodated in the main body case and is positioned to be parallel to and above the acceleration sensor unit. A circuit board unit is positioned parallel to the power supply unit. The acceleration sensor unit, the power supply unit and the circuit board unit are each secured to the main body case. When inspecting for water leaks, the water leak determining unit is placed on the upper surface of the water meter lid, thereby linking the water leak determining unit to the water meter with the distal ends of the three leg portions making internal contact with the water meter head ring, and the water leak determining unit stands freely on the water meter in a stable condition.

Description

THE CONNECTION MECHANISM BETWEEN A WATER SERVICE METER AND A LEAKAGE-OF-WATER JUDGING MACHINE, AND THE LEAKAGE-OF-WATER JUDGING MACHINE USING THIS CONNECTION MECHANISM

[Field of the Invention]

[0001]

This invention relates to the connection mechanism between a water service meter and

the leakage-of-water judging machine for carrying out leakage-of-water inspection at

the time of the inspection of a meter of a water service meter, in particular, it relates to

the connection mechanism that can connect a water service meter and a

leakage-of-water judging machine in a stable state and can carry out leakage-of-water

inspection.

[Background of the Invention]

[0002]

As shown in Fig. 3 (a) and (b), the city water to which water is supplied to a consumer

passes distributing water pipe 32 which branches from water main pipe 31, and this

city water is supplied to the consumer by water supply pipe 33 which branches from

this distributing water pipe 32.

Water service meter 34 is connected to the part which branches to water supply pipe 33

from distributing water pipe 32, and water supply (the amount of the water service

used) can be measured by this water service meter 34.

Up to water service meter 34 from water service main pipe 31 is under jurisdiction of

the Waterworks Bureau, and water supply pipe 33 which is in the consumer side from

water service meter 34 is under jurisdiction of the consumer who is an owner of water

service meter 34.

[0003]

Water service meter 34 is constructed with stop cock 37 in meter box 35, and meter box

35 is covered with cap object 35a which can be opened and closed freely.

The measured water supply is shown on display surface 34b of indication area 34a of

water service meter 34.

Water service meter cap 34c is attached to this display surface 34b, water service meter

cap 34c is constituted by a transparent plate and water service meter head ring 34e for

binding this transparent plate to water service meter cap 34c, and the transparent

plate is formed by transparent members, such as glass and a synthetic resin, so that

surface may become dirty with neither dust nor mud.

The structure where the upper cap (not shown) was attached to the upper surface of

this water service meter cap 34c free opening and closing is sufficient.

[0004]

Domestic leakage of water is often generated in the area in which water supply pipes

32 and 33 for supplying city water to each consumer are constructed.

However, since the area where water supply pipe 33 is constructed is private land, even

for leakage-of-water inspection it is impossible to enter private land without

permission.

A water meter reader can enter private land without permission.

Then, leakage-of-water inspection in the area to which the water supply pipe 33 is

constructed is conventionally conducted by the water meter reader at the time of the

inspection of a meter of water service.

[0005]

In the method of conducting leakage-of-water inspection at the time of the inspection of

a meter of the water service by a water meter reader, there are a method of catching

the leakage-of-water sound (sound vibration) transmitted from a leakage-of-water part

by a sound listening rod, and a method of detecting the leakage-of-water sound

transmitted from a leakage-of-water part by a correlation type leakage of water

detector etc.

In the method of detecting leakage-of-water sound, a correlation type leakage of water

detector etc. for conducting leakage-of-water inspection contact with the transparent

plate which covers display surface 34b of indication area 34a of water service meter 34

to detect the leakage-of-water sound transmitted from a leakage-of-water part.

Moreover, there is also a method of constantly monitoring leakage-of-water by

detecting the specific sound vibration due to the leakage-of-water sound transmitted

from a leakage-of-water part to the water supply pipe 33 and by attaching a

leakage-of-water monitoring device to all the water service meters 34.

[0006]

As shown in Fig. 4, the device described in patent documents 1 is connected to the

water supply pipe which branched from the distributing water pipe to consumer's

house, and it is attached to water service meter 50 main part which measures water

supply (the amount of the water service used) possible attachment and detachment,

on water service meter cap 52 covered possible opening and closing of measurement

display panel part 51 of this water service meter 50 main part, based on the specific

sound vibration by the leakage-of-water sound detected from the main part of water

service meter 50, it has the leakage-of-water judging device which judges the

possibility of leakage-of-water generating of a water supply pipe, a device to output the

contents of a judgment, and internal-organs power supply 53 which supplies the power

supply of each above-mentioned devices of operation.

[Prior art documents]

[Patent documents]

[0007]

[Patent documents 1]

JP,2004-191139,A

[Description of the Invention]

[Problem(s) to be Solved by the Invention]

[0008]

In the case of the method of catching the leakage-of-water sound (sound vibration)

transmitted from a leakage-of-water part by a sound listening rod, and the method of

detecting the leakage-of-water sound transmitted from a leakage-of-water part by a

correlation type leakage of water detector etc., while any method receives the influence by a surrounding noise, unnecessary vibration (influence, blurring, etc. of a wind), etc., in order to find leakage of water, skill of the worker who inspects is required.

Therefore, it was difficult to find leakage of water correctly.

Moreover, since the device of both method was large-sized, there was a problem that it

was inconvenient for a water meter reader to carry this device.

[0009]

Moreover, as shown in Fig. 3, there is a problem that the correlation type leakage of

water detector which connects with water service meter 34 directly, and judges

whether water is leaking or not has a large-sized device, at the time of leakage-of-water

inspection.

As described above, when conducting leakage-of-water inspection using this device,

water service meter 34 and this correlation type leakage of water detector are

connected, but both connecting state is unstable and operation is also complicated.

Therefore, at the time of the water service inspection of a meter, the water meter

reader must support a leak detection machine etc. single hand, and must conduct

leakage-of-water inspection intensively.

Therefore, it was difficult to conduct leakage-of-water inspection simply by a water

meter reader for a short time.

[0010]

When conducting leakage-of-water inspection by a correlation type leakage of water

detector, display surface 34b of water service meter 34 is covered with 34d of

transparent glass boards.

Therefore, when conducting leakage-of-water inspection, this device is laid in the

surface of this glass board (transparent plate) 34d, a detection sensor is contacted on

this glass surface, the sound vibration from a leakage-of-water part is detected, and

leakage-of-water inspection is conducted.

However, it is very easy to slide on glass board 34d.

Moreover, display surface 34b of water service meter 34 was not installed horizontally,

but leans in many cases.

Therefore, the leakage-of-water detecting device placed by meter cap 34c which covers display surface 34b of water service meter 34 has very bad stability, and tends to reverseit.

Especially, when the wind is blowing, a leakage-of-water detecting device becomes still

more unstable.

Therefore, the water meter reader conducts leakage-of-water inspection. While

supporting a leakage-of-water detector with single hand, it is very unstable and poor in

its workability.

Therefore, the water meter reader had the problem that sufficient leakage-of-water

inspection could not be performed.

[0011]

The invention given in patent documents 1 shown in Fig. 4 needs to attach water

service meter cap 52 with a leakage-of-water monitoring function to water service

meter 50 main part currently installed in a huge number of each consumer's house,

therefore, not only a work burden is large, but the supply cost and its attachment cost

of a huge number of water service meter cap 52 become huge.

Moreover, since built-in power supply 53 also had to be exchanged for every fixed time,

there is a problem that the cost burden of exchanging built in power supply was

required.

[0012]

This invention was made in order to solve the above-mentioned problem, it can reduce

the whole cost as much as possible, and can carry out leakage-of-water inspection

simultaneously at the time of the inspection of a meter of a water service meter, the

leakage-of-water inspection device is miniaturized and weight saving so that it may not

become a burden of carrying, and the leakage-of-water judging machine which can be

stably connected with a water service meter at the time of leakage-of-water inspection

is offered.

[Means for Solving the Problem]

[0013]

In a connection mechanism between a water service meter in a meter box having a transparent plate which covers a display surface, a water service meter head ring which binds this transparent plate and a water service meter cap, and a leakage-of-water judging machine which places on the upper surface of this water service meter cap and inspects leakage-of-water, an invention according to Claim 1 comprising: a main part case which provided an opening in the bottom central part while storing electric parts inside, and is a component of the leakage-of-water judging machine; a support plate which opposite arranged in parallel via this main part case bottom and a gap, arranged to the perpendicular central line of the leakage-of-water judging machine at the equal angle, fixed to the bottom of the main part case via the gap by the three legs whose tip projects from lower part, and is a component of the leakage-of-water judging machine; a detection part which can detect leakage-of-water sound by contacting the transparent plate of the water service meter in the tip of the three legs which project from this support plate, and is a component of the leakage-of-water judging machine; and a guide of a cave which is allocated in the gap between the bottom of the main part case and the support plate, hangs from the bottom of a the main part case to the support plate, and is a component of the leakage-of-water judging machine; wherein an acceleration sensor unit of electric parts is stored in the guide, is arranged in parallel with the bottom of the main part case in contact with the support plate, is coincided a perpendicular central line with the central line of the leakage-of-water judging machine, and is positioned and fixed to the opening so as to be located in the gap, a power supply unit of electric parts is coincided a perpendicular central line with the central line of the leakage-of-water judging machine, is stored by the main part case, is positioned in parallel over the acceleration sensor unit, and is fixed to the main part case, a circuit board unit of electric parts is coincided a perpendicular central line with the central line of the leakage-of-water judging machine, is positioned in parallel with the power supply unit, and is fixed to the main part case so as to lower the center of gravity of the leakage-of-water judging machine, at the time of leakage-of-water inspection, by placing this leakage-of-water judging machine in the upper surface of the water service meter cap, the tip of the three legs of a the leakage-of-water judging machine, is connected to the water service meter while it is inscribed in the water service meter head ring, and the leakage-of-water judging machine is stood on the water service meter in a stable state.

[0014]

In the invention according to Claim 1, the leg according to Claim 2 was formed in a

curve in the direction of a periphery to the central line.

[0015]

In the invention according to Claim 1 - Claim 2, the guide according to Claim 3 was

integrally formed with a flange part positioned by the equal angle to the central line.

[0016]

In a leakage-of-water judging machine which inspects leakage-of-water and places on

the upper surface of a water service meter cap of a water service meter having a

transparent plate which covers a display surface and a water service meter head ring

which binds this transparent plate and was allocated in a meter box,

an invention according to Claim 4 comprising:

a main part case which provided an opening in the bottom central part while storing

electric parts inside;

a support plate which opposite arranged in parallel via this main part case bottom and

a gap, arranged to the perpendicular central line of the leakage-of-water judging

machine at the equal angle, fixed to the bottom of the main part case bottom via the

gap by the three legs whose tip projects from lower part;

a guide of a cave which is allocated in the gap between the bottom of the main part case

and the support plate, and hangs from the bottom of the main part case to the support

plate;

wherein a power supply unit and a circuit board unit of electric parts are coincided a

perpendicular central line towards the upper part from the internal bottom of the main

part case, are positioned in parallel with the bottom of the main part case, are stored, and are fixed to the main part case, a detection part constituted so that three leg tips which project from the undersurface of the support plate might detect vibration generated by leakage of water is fixed to the main part case, an acceleration sensor unit of electric parts is stored in the guide, is arranged in parallel with the bottom of the main part case in contact with the support plate, is coincided a perpendicular central line with the central line of the leakage-of-water judging machine, and is positioned and fixed to the opening so as to be located in the gap, so as to limit the height of the leakage-of-water judging machine and to lower the center of gravity of the leakage-of-water judging machine, at the time of leakage-of-water inspection, by placing this leakage-of-water judging machine in the upper surface of the water service meter cap, the tip of the three legs of the leakage-of-water judging machine is connected to the water service meter while it is inscribed in the water service meter head ring, and the leakage-of-water judging machine is stood on the water service meter in a stable state.

[0017]

In the invention according to Claim 4, the leg according to Claim 5 was formed in a

curve in the direction of the periphery to the central line.

[0018]

In the invention according to Claim 4 - Claim 5, the guide according to Claim 6 was

[Effect of the Invention]

[0019]

Invention concerning Claim 1 and Claim 4 was constituted as mentioned above, the

supporting plate 3 is attached to the leakage-of-water judging machine, and the tip of

the three legs of the leakage-of-water judging machine used as the detection part which

senses the oscillating sound by leakage of water is inscribed in the water service meter

head ring 34e (refer to Fig. 3) and is held strongly. Therefore the connection state of

the leakage-of-water judging machine 1 and the water service meter 34 is stabilized very much.

Leakage-of-water judging machine 1 can be connected with the glass surface of water

service meter 34 in the state where it stood straight stably, even if the glass board on

which the transparent plate which covers display surface 34b of water service meter 34

tends to slide, or water service meter 34 leans.

[0020]

The center of gravity of leakage-of-water judging machine 1 can be made low by

arranging the heavy parts such as acceleration sensor unit 11 or power supply unit 12

etc. in the lower part of main part case 2 of leakage-of-water judging machine 1.

Acceleration sensor unit 11 is arranged in gap 8 between the bottom of main part case 2

and support plate 3, and circuit board 13 is arranged in parallel in the bottom of main

part case 2,

the height of leakage-of-water judging machine 1 is made low, and stability of

leakage-of-water judging machine 1 attached to display surface 34b of water service

meter 34 is improved.

Since guide 5 in which acceleration sensor unit 11 is stored and support plate 3 of main

part case 2 are heavy, the center of gravity of leakage-of-water judging machine 1 can

be made still lower.

[0021]

Furthermore, since this leakage-of-water judging machine 1 can be stored in the meter

box 35 if the height of the leakage-of-water judging machine 1 is made low,

the stability of leakage-of-water judging machine 1 improves without being affected by

the wind etc., while a leakage-of-water judging machine and water service meter 34 are

connected.

[0022]

Since invention concerning Claim 2 and Claim 5 was constituted as mentioned above,

there is the same effect as invention of Claim 1 and Claim 4.

Furthermore, the connection state of the leg 9 of the leakage-of-water judging machine

1 and the water service meter head ring 34e of the water service meter 34 can become

still stronger, and the stability of a connection state of the leakage-of-water judging machine 1 and the water service meter 34 can be raised further.

[0023]

Since invention concerning Claim 3 and Claim 6 was constituted as mentioned above,

there is the same effect as invention of Claim 1 - Claim 2 and Claim 4 - Claim 5.

Since the center of gravity of leakage-of-water judging machine 1 can be made still

lower by the flange part of the guide, the stability of the connecting state of

leakage-of-water judging machine 1 and water service meter 34 can be raised further.

[Brief Description of the Drawings]

[0024]

[Fig. 1]

Fig. 1 shows the embodiment of this invention and is a cross section drawing of

leakage-of-water judging machine 1 by this invention.

[Fig. 2]

Fig. 2 shows the embodiment of this invention and is an outline drawing of the

leakage-of-water judging machine 1 by this invention, (a) is an upper surface drawing

and (b) is a front drawing and (c) is a bottom plan drawing and (d) is a right side

drawing and (e) is a principal part enlargement drawing of the panel side 14a.

[Fig. 3]

Fig. 3 shows a conventional example, (a) is the explanatory diagram showing the piping

state of a water pipe, and (b) is an upper surface drawing of the display area of the

water service meter.

[Fig. 4]

Fig. 4 shows a conventional example of the water service meter cap with a

leakage-of-water monitoring function, (a) is a principal part upper surface drawing and

(b) is a cross section side drawing.

[The form for inventing]

[0025]

A connection mechanism between a water service meter in the a meter box having a transparent plate which covers a display surface, a water service meter head ring which binds this transparent plate and a water service meter cap, and a leakage-of-water judging machine which places on the upper surface of this water service meter cap and inspects leakage-of-water, comprising: a main part case which provided an opening in the bottom central part while storing electric parts inside, and is a component of the leakage-of-water judging machine; a support plate which opposite arranged in parallel via this main part case bottom and a gap, arranged to the perpendicular central line of the leakage-of-water judging machine at the equal angle, fixed to the bottom of the main part case via the gap by the three legs whose tip projects from lower part, and is a component of the leakage-of-water judging machine; a detection part which can detect leakage-of-water sound by contacting the transparent plate of the water service meter in the tip of the three legs which project from this support plate, and is a component of the leakage-of-water judging machine; and a guide of a cave which is allocated in the gap between the bottom of the main part case and the support plate, hangs from the bottom of the main part case to the support plate, and is a component of the leakage-of-water judging machine; wherein an acceleration sensor unit of the electric parts is stored in the guide, is arranged in parallel with the bottom of the main part case in contact with the support plate, is coincided a perpendicular central line with the central line of the leakage-of-water judging machine, and is positioned and fixed to the opening so as to be located in the gap, a power supply unit of the electric parts is coincided a perpendicular central line with the central line of the leakage-of-water judging machine, is stored by the main part case, is positioned in parallel over the acceleration sensor unit, and is fixed to the main part case, a circuit board unit of the electric parts is coincided a perpendicular central line with the central line of the leakage-of-water judging machine, is positioned in parallel with the power supply unit, and is fixed to the main part case-so as to lower the center of gravity of the leakage-of-water judging machine, at the time of leakage-of-water inspection, by placing this leakage-of-water judging machine in the upper surface of the water service meter cap, the tip of the three legs of the leakage-of-water judging machine, is connected to the water service meter while it is inscribed in the water service meter head ring, and the leakage-of-water judging machine is stood on the water service meter in a stable state.

the leg of the leakage-of-water judging machine is formed in a curve in the direction of

a periphery to the central line,

the guide was integrally formed with a flange part positioned by the equal angle to the

central line.

[Embodiment 1]

[0026]

The 1st embodiment of this invention is explained in detail based on Figs. 1 - 3.

Figs. 1 - 2 show the 1st embodiment of this invention, Fig. 1 is a cross section of

leakage-of-water judging machine 1 of this invention, and Fig. 2 is an outline drawing

of leakage-of-water judging machine 1 of this invention.

Fig. 2 (a) is an upper surface figure and panel surface 14a of display area 14 is shown,

(b) is an elevational view and (c) is a bottom plan view, (d) is a right side view and (e)

is a principal part enlarged view of panel surface 14a.

[0027]

As shown in Fig. 3, water service meter 34 is the usual water service meter currently

generally used, and is allocated with stop cock 37 in meter box 35 currently buried in

the ground.

Display surface 34b of display area 34a of water service meter 34 is covered with water

service meter cap 34c.

This water service meter cap 34c is constituted by circular transparent plates 34d

which formed by transparent members like glass, and water service meter head ring

34e which binds this transparent plate 34d.

The water service meter head ring 34e is projected from the surface of transparent

plate 34d.

[0028]

As shown in Figs. 1 - 2, leakage-of-water judging machine 1 is constituted by

rectangle-form main part case 2, circular support plate 3, three bolts 4 and nut 4a

which constitute leg 9 of leakage-of-water judging machine 1 while fixing support plate

3 to main part case 2 with a screw and cylindrical guide 5 for acceleration sensor unit

11 being stored and protecting this acceleration sensor unit 11.

[0029]

The upper end opening of main part case 2 for storing electric parts is covered possible

opening and closing with cap 7, and opening 6 is in the bottom central part of main part

case 2.

Support plate 3 is opposite arrangement in parallel with the bottom of main part case 2,

and it is fixed to the bottom of main part case 2 with the screw via gap 8 with 3 sets of

bolts 4 and nut 4a.

The bolt 4 and nut 4a are radially positioned by the angles (120 degrees) centering on

the perpendicular centerline A.

Therefore, three sets of bolt 4 and nut 4a constitute three legs 9 of leakage-of-water

judging machine 1.

The tip of this leg 9 is projected in the lower part from support plate 3.

Therefore, wherein leakage-of-water judging machine 1 and water service meter 34 are

connected, the tip of leg 9 touches glass board 34d which cover display surface 34b of

water service meter 34, and serves as detection part 10 for detecting vibration by

leakage of water.

[0030]

In this embodiment, although support plate 3 is circular, it may not be limited to this

shape, may have the shape of a polygon, such as a quadrangle and a pentagon, and

should just be the shape which horizontal balance was able to take to perpendicular

central line A.

In this embodiment, although bolt 4 and nut (high nut) 4a constitute leg 9, it is not

limited to this.

For example, the leg may be formed by the existing flexible member.

In this case, if three legs 9 are formed in a curve in the direction of a periphery from a

central line, the connection to leakage-of-water judging machine 1 and water service

meter 34 will be stabilized from the case where leg 9 is made to become independent in

the shape of a straight line.

[0033]

Guide 5 of the cave is allocated in gap 8 between main part case 2 and support plate 3

so as to hang downward from the bottom of main part case 2 toward the support plate

3.

One end of guide 5 is being positioned and fixed to the end of opening 6 in the bottom of

main part case 2, and the other end of guide 5 is opened.

The outer wall of guide 5 is radially positioned by the equal angle focusing on

perpendicular central line A, and flange part 5a extended in one from the outer wall of

guide 5 is formed.

In this embodiment, although, main part case 2, guide 5, and its flange part 5a are

formed in one, it is not limited to this, may be formed by combining different parts.

[0034]

In this guide 5, acceleration sensor unit 11, which is relatively heavy parts among

electric parts of leakage-of-water judging machine 1 is stored.

One end of this acceleration sensor unit 11 is projected in gap 8 from opening 6 of the

bottom of main part case 2 and it is fixed to the inner wall of guide 5 via case 11a, and

the other end of acceleration sensor unit 11 is positioned and supported in contact with

support plate 3.

The perpendicular central line of acceleration sensor unit 11 is positioned so that it

may consist with perpendicular central line A.

[0035]

That is, acceleration sensor unit 11 is stored in guide 5, and is arranged in gap 8

located between the bottom of main part case 2 and support plate 3.

Therefore, the perpendicular height (length) of main part case 2 can be shortened

sharply.

The center of gravity of leakage-of-water judging machine 1 can become low, and the connecting state of water service meter 34 and leakage-of-water judging machine 1 can be stabilized compared to conventional products.

[0036]

When leakage-of-water judging machine 1 and water service meter 34 are connected

for leakage-of-water inspection, both are settled in meter box 35.

Therefore, it is not influenced by a wind at the time of leakage-of-water inspection.

Therefore, the stability of the connecting state of leakage-of-water judging machine 1

and water service meter 34 increases further.

[0037]

In the case of this embodiment, the shape of guide 5 is cylindrical, but it may not be

limited to this, and the section of guide 5 are sufficient polygons, such as a quadrangle

and a pentagon.

Guide 5 can store acceleration sensor unit 11 to the inside, and as long as it is the shape

which maintains horizontal balance to perpendicular central line A, it may be what

kind of shape.

Since the center of gravity of leakage-of-water judging machine 1 can be made low

when a large weight member is used for the member of guide 5, the stability of the

connecting state of leakage-of-water judging machine 1 and water service meter 34

increases.

[0038]

Power supply unit 12 whose weight is the maximum in the electric parts of

leakage-of-water judging machine 1 is stored by main part case 2, and power supply

unit 12 is located above acceleration sensor unit 11, coincides perpendicular central

line A mutually, is positioned in piles in parallel, and is being fixed to main part case 2.

Therefore, the center of gravity of leakage-of-water judging machine 1 is further

lowered.

Circuit board unit 13 of electric parts coincides perpendicular central line A of power

supply unit 12 with perpendicular central line A of acceleration sensor unit 11, and is

positioned in parallel, and is being stored and fixed to the cap 7 side of main part case

2.

Therefore, since the circuit board conventionally allocated vertically was allocated

horizontally, the height of a main part case can be shortened sharply, and the center of

gravity of leakage-of-water judging machine 1 is also lowed.

[0039]

As shown in Fig. 2 (a), cap 7 covers the upper end opening of main part case 2, and

indication area 14 is allocated on cap 7.

Therefore, a transparent bottom hole is formed at the part of cap 7 which opposes panel

surface 14a and various kinds of holes for indicator lamps of indication area 14 and

indication lights, such as LED, are allocated in these transparent bottom holes.

[0040]

In the case of this embodiment, as shown in Fig. 2 (d), the result of leakage-of-water

inspection expresses the doubt of leakage of water as three steps of waterdrop marks

15.

By turning on operation switch 16, it is constituted so that indication 17 of "end" or

measuring" may be shown with color LED.

The liquid-crystal-display machine is used for display area 14 in this embodiment.

[0041]

USB connector 18 is allocated in the right-hand side of main part case 2 with the

waterproof connector cover.

By this USB connector 18, the result of leakage-of-water inspection can be outputted to

external apparatus (PC etc.), the firmware of leakage-of-water judging machine 1 can

be updated, and power supply unit 12 can be changed.

[0042]

Next, function operation at the time of conducting leakage-of-water inspection using

leakage-of-water judging machine 1 is explained based on Figs. 1 - 3.

[0043]

First, inspection of a meter of water service meter 34 is carried out.

Cap object 35a of meter box 35 is opened, and, subsequently the numerical value (the

amount of the water service used) displayed on display surface 34b of water service

meter 34 is read.

By this act, the inspection of a meter of water service is ended.

[0044]

Subsequently, leakage-of-water inspection is carried out.

Leakage-of-water judging machine 1 is laid on glass board 34d of water service meter

cap 34c which covers display surface 34b of water service meter 34.

Under the present circumstances, the tip of three legs 9 of leakage-of-water judging

machine 1 touches water service meter head ring 34e, and leakage-of-water judging

machine 1 and water service meter 34 are connected.

As described above, gap 8 is interposed between main part case 2 of leakage-of-water

judging machine 1 and support plate 3, and acceleration sensor unit 11 with relatively

heavy weight is allocated in this gap 8, and since power supply unit 12 with the largest

weight within main part case 2 is allocated near the bottom of main part case 2, the

center of gravity of leakage-of-water judging machine 1 is very low compared with

goods conventionally.

Moreover, the tip of leg 9 used as three detecting parts 10 is strongly in contact with

water service meter head ring 34e projected from the surface of glass board 34d.

Therefore, since leakage-of-water judging machine 1 can stand being stabilized by

three legs 9 on the surface of glass board 34d of meter cap 34c of water service meter 34,

the connection mechanism between leakage-of-water judging machine 1 and water

service meter 34 is stabilized very much.

[0045]

As described above, acceleration sensor unit 11 with relatively heavy weight is

allocated in gap 8, circuit board unit 13 is also arranged in parallel with main part case

2 and the perpendicular height of leakage-of-water judging machine 1 is also designed

low.

Therefore, even if leakage-of-water judging machine 1 and water service meter 34 are

connected, since leakage-of-water judging machine 1 is settled in meter box 35, it is not

influenced by a wind and its stability improves further.

[0046]

In this state, operation switch 16 is turned on and panel surface 14a of display area 14 is read.

Under the present circumstances, when there is a leakage-of-water part, leakage-of-water sound is detected with leakage-of-water judging machine 1, and that

result is shown by either of three steps of waterdrop marks 15 which show the doubt of

leakage of water to panel surface 14a.

This result can be outputted to external apparatus (PC etc.) via USB connector 18 or

built-in BLUETOOTH (registered trademark).

[Industrial applicability]

[0047]

Since this invention can also carry out leakage-of-water inspection simultaneously at

the time of the inspection of a meter of a water service meter, it can use for the water

service meter constructed all over the country.

[Description of Notations]

[0048]

1 Leakage-of-Water Judging Machine

2 Main Part Case of Leakage-of-Water Judging Machine 1

3 Support Plate

Guide

5a The flange part of guide 5

8 Gap

9 Leg

Perception Part

11 Acceleration Sensor Unit

12 Power Supply Unit

13 Circuit Board Unit

34 Water Service Meter

34b The display surface of water service meter 34

34c The meter cap of water service meter 34

34d Glass board of water service meter 34

34e The water service meter head ring of water service meter 34

A The perpendicular central line of leakage-of-water judging machine 1

Claims

[Document Name]

[Claim 1]

A connection mechanism between a water service meter in the a meter box having a

transparent plate which covers a display surface, a water service meter head ring

which binds this transparent plate and a water service meter cap, and a

leakage-of-water judging machine which places on the upper surface of this water

service meter cap and inspects leakage-of-water, comprising:

a main part case which provided an opening in the bottom central part while storing

electric parts inside, and is a component of said leakage-of-water judging machine;

a support plate which opposite arranged in parallel via this main part case bottom and

a gap, arranged to the perpendicular central line of said leakage-of-water judging

machine at the equal angle, fixed to the bottom of said main part case via said gap by

the three legs whose tip projects from lower part, and is a component of said

leakage-of-water judging machine;

a detection part which can detect leakage-of-water sound by contacting said

transparent plate of said water service meter in the tip of said three legs which project

from this support plate, and is a component of said leakage-of-water judging machine;

and a guide of a cave which is allocated in said gap between the bottom of said main

part case and said support plate, a-nd hangs from the bottom of said main part case to

said support plate, and is a component of said leakage-of-water judging machine;

wherein an acceleration sensor unit of said electric parts is stored in said guide, is

arranged in parallel with the bottom of said main part case in contact with said support

plate, is coincided a perpendicular central line with the central line of said

leakage-of-water judging machine, and is positioned and fixed to said opening so as to

be locatedin said gap,

a power supply unit of said electric parts is coincided a perpendicular central line with

the central line of a said leakage-of-water judging machine, is stored by said main part

case, is positioned in parallel over said acceleration sensor unit, and is fixed to said

main part case, a circuit board unit of said electric parts is coincided a perpendicular central line with the central line of said leakage-of-water judging machine, is positioned in parallel with said power supply unit, and is fixed to said main part case so as to lower the center of gravity of said leakage-of-water judging machine, at the time of leakage-of-water inspection, by placing this leakage-of-water judging machine in the upper surface of said water service meter cap, the tip of said three legs of said leakage-of-water judging machine, is connected to said water service meter while it is inscribed in said water service meter head ring, and said leakage-of-water judging machine is stood on said water service meter in a stable state.
[Claim 2]

A connection mechanism between a water service meter and a leakage-of-water judging

machine according to Claim 1, wherein said leg of said leakage-of-water judging

machine is formed in a curve in the direction of a periphery to said central line.
[Claim 3]

A connection mechanism between a water service meter and a leakage-of-water judging

machine according to Claim 1 - Claim 2, wherein said guide was integrally formed with

a flange part positioned by the equal angle to said central line.
[Claim 4]

A leakage-of-water judging machine which inspects leakage-of-water and places on the

upper surface of a water service meter cap of a water service meter having a

transparent plate which covers a display surface and a water service meter head ring

which binds this transparent plate and allocated in a meter box, comprising:

a main part case which provided an opening in the bottom central part while storing

electric parts inside;

a support plate which opposite arranged in parallel via this main part case bottom and

a gap, arranged to the perpendicular central line of said leakage-of-water judging

machine at the equal angle, fixed to the bottom of said main part case via said gap by

the three legs whose tip projects from lower part;

a guide of a cave which is allocated in said gap between the bottom of said main part

case and said support plate, and hangs from the bottom of said main part case to said support plate; wherein a power supply unit and a circuit board unit of said electric parts are coincided a perpendicular central line towards the upper part from the internal bottom of said main part case, are positioned in parallel with the bottom of said main part case, are stored, and are fixed to said main part case, a detection part constituted so that said three leg tips which project from the undersurface of said support plate might detect vibration generated by leakage of water is fixed to said main part case, an acceleration sensor unit of said electric parts is stored in said guide, is arranged in parallel with the bottom of said main part case in contact with said support plate, is coincided a perpendicular central line with the central line of said leakage-of-water judging machine, and is positioned and fixed to said opening so as to be located in said gap, so as to limit the height of said leakage-of-water judging machine and to lower the center of gravity of said leakage-of-water judging machine, at the time of leakage-of-water inspection, by placing this leakage-of-water judging machine in the upper surface of said water service meter cap, the tip of said three legs of said leakage-of-water judging machine is connected to said water service meter while it is inscribed in said water service meter head ring, and said leakage-of-water judging machine is stood on said water service meter in a stable state.
[Claim 5]

A leakage-of-water judging machine of according to Claim 4, wherein said leg was

formed in a curve in the direction of a periphery to said central line.
[Claim 6]

A leakage-of-water judging machine according to Claim 4 - Claim 5, wherein said guide

was integrally formed with a flange part positioned by the equal angle to said central

line.

[Document Name] 1/4 DRAWINGS

[Drawing 1]

[Drawing 2] 2/4

[Drawing 3] 3/4

[Drawing 4] 4/4