KR20170135838A - Linking mechanism between water meter and water leak determining unit, and water leak determining unit employing said linking mechanism - Google Patents

Abstract

[assignment]
Provide a connection mechanism that can leak water by connecting the water meter to the water meter in a stable state.
[Solution]
The water meter cover which covers the display surface of the water meter is composed of a transparent plate and a water meter head ring for fastening the transparent plate. The leakage checker includes a main body case for housing electric components therein, and a plurality of water leakage preventing members which are arranged in parallel on the bottom surface of the main body case through a gap and are equiangularly arranged with respect to the center line in the vertical direction, A support plate fixed to the bottom surface of the main body case through three legs through a gap and a sensing part for detecting a leak sound at the tips of the three legs projecting from the support plate, And the acceleration sensor unit is positioned and fixed so that the acceleration sensor unit is housed in the guide and the acceleration sensor unit is located in the gap, The circuit board unit is positioned parallel to the upper side of the acceleration sensor unit with the housing case in the main body case, The positions, which would be fixed to the body case. When the water leakage test is performed, the water leakage meter is placed on the water meter cover so that the ends of the three legs are connected to the water meter with the water meter head ring in contact therewith. The water meter is self- do.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water meter, a water meter, and a leak detector using the water meter. 2. Description of the Related Art [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection mechanism between a water leakage meter and a water meter for water leakage inspection at the time of meter reading of a water meter, .

As shown in Figs. 3 (a) and 3 (b), the tap water supplied to the user is discharged from the water main pipe 31 via the water pipe 32 branched from the water main pipe 31, And is supplied to the consumer by the water supply pipe (33). A water meter 34 is connected to a portion diverted from the water pipe 32 to the water supply pipe 33 so as to measure the water supply amount (water usage amount). From the water main pipe 31 to the water meter 34 is under the jurisdiction of the waterworks authority and the portion after the water supply pipe 33 from 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 in a meter box 35 covered with a cover 35a that is openable and closable together with a water stop valve 36. The metered amount of water is supplied to the water meter 34, Is displayed on the display surface 34b of the display portion 34a. The display surface 34b is constituted by a water meter head ring 34e for fastening the transparent plate formed of a transparent member such as glass or synthetic resin and the transparent plate so that the surface thereof is not contaminated with dust or dirt, And a water meter cover 34c is attached. There is also a type in which a waterproof cover 34c is openably and closably attached to the water meter cover 34c.

Leaks in Korea are mostly leaked in areas where water pipes 32 and 33 are installed to supply tap water to each consumer. However, the area where the water supply pipe (33) is laid is a private place, so even if it is for leakage inspection, it can not enter private land without permission. It is the water meter inspector to enter uniquely on the private land without permission. Therefore, in the prior art, water leakage inspection in the area where the water supply pipe 33 is provided at the time of water meter reading is performed by the water meter inspecting source.

As a method of performing water leakage inspection at the same time as water meter inspection by water meter probe, there is a method of listening to a leak sound (acoustic vibration) transmitted from a water leakage location with a soundproof bar, There is a method of detecting a leakage sound transmitted from a leak point by bringing a correlation type leak detector or the like for leakage inspection into contact with a transparent plate covering the display surface 34b of the display portion 34a of the receiver 34 . It is also possible to attach a water leakage monitoring device to all of the water meters 34 to detect a specific acoustic vibration caused by a leakage sound transmitted from the water leakage point to the water supply pipe 33 so as to always monitor the water leakage.

As shown in FIG. 4, the apparatus described in Patent Document 1 is connected to a water supply pipe branching from a water pipe to a home (customer) from the water pipe, and is detachably attached to a water meter body 50 in which a water supply amount And a water meter cover 50 for covering the weighing display panel section 51 of the water meter 50 so as to be capable of opening and closing is provided with a specific sound And a built-in power source (53) for supplying operation power of each of the above means to the outside (see, for example, Japanese Patent Application Laid- .

Japanese Patent Application Laid-Open No. 2004-191139

(Acoustic vibration) transmitted from a leak point is heard by a sonic wave or a method in which a correlated leak detector or the like is brought into contact with a transparent plate covering the display surface 34b of the display portion 34a of the water meter 34 , And a method of detecting a leak sound transmitted from a leak point, any method is influenced by ambient noise or unnecessary vibration (influence of wind or camera shake), and in order to find a leak, It is difficult to find leaks accurately because of the skill of the operator. In addition, each of them is large as a device, and there is a problem that it is inconvenient for a water meter inspecting person to carry it.

In addition, as shown in Fig. 3, a correlated leak detector of the type that judges whether or not a leak is directly connected to the water meter 34 at the time of leakage inspection is, as described above, In addition to the problem, when the water leakage inspection is performed using this device, the correlation water leak detector is connected to the water meter 34, both of which are unstable, and the operation is complicated. Therefore, at the time of the water meter inspection, the water meter inspecting fund had to carry out the leakage inspection by concentrating the nerve while supporting the leak detector with one hand, and it was difficult to perform the leak check simply in a short time by the water meter inspecting staff.

When the leaked water is inspected by the correlated leak detector, the display surface 34b of the water meter 34 is covered with a transparent glass plate 34d. Therefore, when the water leakage inspection is performed, the apparatus is placed on the surface of the glass plate (transparent plate) 34d, and the detection sensor is brought into contact with the glass surface to detect the acoustic vibration from the water leakage portion, thereby conducting the water leakage inspection. However, the glass plate 34d is very slippery. Furthermore, since the display surface 34b of the water meter 34 can not be said to be horizontally installed and is often inclined, the water meter The stability of the water leakage detection device placed on the meter cover 34c covering the display surface 34b of the water leakage sensor 34 is very bad and easily falls. In particular, when the wind is blowing, it becomes more unstable. Therefore, there is a problem in that the water meter inspecting source must perform water leakage inspection while supporting the water leak detector with one hand, is very unstable, is poor in workability, and can not perform sufficient water leak inspections.

4, it is necessary to attach a water meter cover 52 with water leakage monitoring function to each of the water meter 50 main bodies installed in a vast number of customers' homes, Not only is the operation burden large, but also the procurement cost and the adhering cost of a large number of water meter covers 52 are enormous. In addition, the built-in power source 53 must be exchanged every certain period of time, and there is a problem that the cost burden is large.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a water leak inspection apparatus and a water leak inspection apparatus, And it is an object of the present invention to provide a leak determining device that can be stably connected to a water meter at the time of leakage inspection.

There is provided a water meter comprising a water meter provided in a meter box and having a water meter cover formed of a transparent plate covering the display surface and a water meter head ring for fastening the transparent plate, In the connection mechanism between the water meter and the water leakage judging device, which comprises a water leakage judging device for conducting water leakage inspection, the water leakage judging device includes an electric part (electric part) housed therein and an opening at the center of the bottom, (Main body case), three legs (legs) that are arranged in parallel to the bottom surface of the main body case in parallel to each other and are equiangularly arranged with respect to the vertical center line of the leak- ), And three leg ends protruding from the support plate are attached to the transparent plate of the water meter A sensing part which is capable of detecting a leak sound by being touched to the bottom surface of the main body case and a hollow space which is disposed in the gap between the bottom surface of the main body case and the support plate and which is suspended from the bottom surface of the main body case to the support plate, Guide,

The acceleration sensor unit, which is an electrical component, is disposed in parallel with the bottom surface of the main body case in a state of being in contact with the support plate in the guide along with the accommodating plate, and the center line of the vertical direction is aligned with the center line, And the power source unit which is an electric component is accommodated in the main body case and the center line of the vertical direction is aligned with the center line of the leak check valve and is positioned parallel to the upper side of the acceleration sensor unit And the circuit board unit as an electrical component is aligned with the center line of the leak checker in the vertical direction and is positioned parallel to the power source unit and fixed to the main body case, (Low center of gravity) of the water meter, and when the water meter is inspected, the water meter is placed on the upper surface of the water meter cover, Wherein the water meter is connected to the water meter with the tip of the three legs of the water meter being in contact with the water meter head ring and the water meter is self- to be.

According to a second aspect of the present invention, in the invention according to the first aspect, the leg portion is curved in the outer peripheral direction with respect to the center line.

According to a third aspect of the present invention, in the invention according to any one of the first to second aspects, the guide is integrally formed with wings positioned at an equiangular angle with respect to the center line.

According to a fourth aspect of the present invention, there is provided a water meter comprising: a water meter provided in a meter box and having a water meter cover formed of a transparent plate covering the display surface and a water meter head ring for fastening the transparent plate; A water leakage determination device for performing water leakage inspection comprising: a main body case housing an electrical component and projecting an opening in a central portion of the bottom face; And is supported by a support plate having a main body case by means of three legs protruding from a bottom surface of the main body case and a gap between the bottom surface of the main body case and the support plate, Wherein the inner case is made of a hollow guide, and the body case is arranged so as to face upward from the inner bottom face, The unit and the circuit board unit are aligned with the center line in the vertical direction and positioned and held parallel to the bottom surface and fixed to the body case and the tip ends of the three legs protruding from the lower surface of the support plate are fixed by leakage And the guide is disposed in parallel with the bottom surface of the main body case in a state of being in contact with the support plate while accommodating the acceleration sensor unit therein and aligning the center line of the vertical direction with the center line, , The height of the water leakage determination device is limited and the height of the water leakage determination device is reduced to a low center of gravity by positioning and fixing the acceleration sensor unit in the opening so that the acceleration sensor unit is located in the gap. The tip of the three legs of the leak check valve is connected to the water meter with the water meter head ring in contact with the water meter, Group is a leak discriminator characterized in that the self-supporting in the meter also stable.

According to a fifth aspect of the present invention, in the invention according to the fourth aspect, the leg portion is curved in the outer peripheral direction with respect to the center line.

According to a sixth aspect of the present invention, in the invention according to any one of the fourth to fifth aspects, the guide is integrally formed with wings positioned at equal angular positions with respect to the center line.

The invention according to Claim 1 and Claim 4 is constituted as described above, so that the support plate (3) is attached to the leak detector, and the three legs of the leak detector, which is a sensing portion which senses a vibration sound due to leakage, The connection between the water leakage meter 1 and the water meter 34 is very stable because the water reservoir 1 is in contact with the water meter head ring 34e (see Fig. 3) and is firmly supported. 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 inclined, It can be connected in a state in which it is stably independent on the glass surface.

A heavy component such as the acceleration sensor unit 11 or the power source unit 12 is disposed inside the leak check valve 1 at the lower part of the main body case 2 of the leak check valve 1, It is possible to lower the center of gravity of the body 1. 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 parallel to the bottom surface of the main body case 2 The height of the leak determining device is reduced to improve the stability of the leak checking device 1 provided on the display surface 34b of the water meter 34. [ In addition, 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, so that the center of the leak check valve 1 is further lowered.

In addition, since the height of the water leakage meter 1 can be lowered, it can be housed in the meter box 35. Therefore, when the water leakage indicator is connected to the water meter 34, Even if there is a state where there is no influence, it is not influenced, and stability improves.

According to the invention of claim 2 and claim 5, the same effects as those of the invention described in claim 1 and claim 4 can be obtained. The connection between the leg portion 9 of the water leakage meter 1 and the water meter head ring 34e of the water meter 34 becomes more rigid and the water leakage meter 1 and water meter 34 It is possible to further improve the stability of the connection state.

The invention according to claim 3 and claim 6 is configured as described above, and therefore, the same effects as those of the invention according to claim 1 to claim 2 and claim 4 to claim 5 can be obtained. Further, the wing portion of the guide has an effect of further lowering the center of the leak check device 1, and further enhancing the stability of the connection state between the leak check device 1 and the water meter 34. [

Fig. 1 shows an embodiment of the present invention, and is a sectional view of a leak checker 1 according to the present invention. Fig.
(A) is a top view, (b) is a front view, (c) is a bottom view, and (b) is a bottom view. FIG. 2 is an external view of an embodiment of the present invention. (d) is a right side view, and (e) is an enlarged view of a main part of the panel surface 14a.
Fig. 3 shows a conventional example. Fig. 3 (a) is an explanatory diagram showing the piping state of the water pipe, and Fig. 3 (b) is a top view of the display section of the water meter.
Fig. 4 shows a conventional example of a water meter cover having a leakage monitoring function. Fig. 4 (a) is a top view of a main portion, and Fig. 4 (b) is a side sectional view.

A water meter provided in the meter box and having a water meter cover which is composed of a transparent plate covering the display surface and a water meter head ring for fastening the transparent plate and a water leakage determination device mounted on the upper surface of the water meter cover, In the connecting mechanism between the water meter and the water leakage judging device, the water leakage judging device comprises a main body case which houses therein electric parts therein and has an opening at the center of the bottom face thereof, A support plate which is disposed opposite to the center line in the vertical direction of the leak check valve and is fixed to the bottom surface of the main body case through a gap by means of three legs projecting from the lower surface, And the tip ends of the three legs projecting from the support plate are brought into contact with the transparent plate of the water meter, And a hollow guide which is disposed on the gap between the bottom surface of the main body case and the support plate and which is in contact with the support plate from the bottom surface of the main body case and which is an electric component is accommodated in the guide, And the power source unit as an electric component is fixed to the main body casing in such a manner that the center line of the vertical casing is aligned with the center line and the acceleration sensor unit is positioned in the gap, The circuit board unit as an electrical component is fixed to the main body case by aligning the center line of the vertical direction with the center line of the leak check fixture together with the housing and positioning it parallel to the upper side of the acceleration sensor unit, Is aligned with the center line of the leak check valve and is positioned parallel to the power source unit and fixed to the main body case When the water leakage test is carried out, the tip of the three legs of the leak check valve is in contact with the head ring of the water meter by placing the leak detector on the water meter cover. The water meter is connected to the meter, and the water meter is self-standing in a stable state in the water meter.

The leg portion is curved in the outer circumferential direction with respect to the center line, and the guide is integrally formed with the wing portion positioned at an equal angle with respect to the center line.

Example 1

A first embodiment of the present invention will be described in detail with reference to Figs. 1 to 2 and 3. Fig.

1 to 2 show an embodiment of the present invention. Fig. 1 is a cross-sectional view of a water leakage meter 1 according to the present invention, and Fig. 2 is an external view of a water leakage meter 1 according to the present invention . Fig. 2 (a) is a top view showing the panel surface 14a of the display unit 14, Fig. 2 (b) is a front view, Fig. 2 And an enlarged view of a main portion of the surface 14a.

As shown in Fig. 3, the water meter 34 is a conventional water meter which is conventionally used, and is disposed in a meter box 35 buried in the ground together with the exponent 37. The display surface 34b of the display portion 34a of the water meter 34 is covered with a meter cover 34c. The meter cover 34 is composed of a circular transparent plate 34d formed of a transparent member such as glass and a water meter head ring 34e for fastening 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.

1 to 2, the leak checker 1 includes a main body case 2 of a rectangular shape, a circular support plate 3, a support plate 3 And three bolts 4 and a nut 4a constituting the leg portion 9 of the leak check valve 1 and the acceleration sensor unit 11 And a cylindrical guide 5 for protecting it.

The main body case 2 is for accommodating the electric parts. The top opening is covered by the lid 7 to be openable and closable, and the opening 6 is provided at the center of the bottom. The support plate 3 is disposed in parallel with the bottom surface of the main body case 2 and is arranged in a three-dimensional (three-dimensional) configuration in which the support plate 3 is radially positioned at an isometric angle (120 degrees) The bolts 4 and the nuts 4a of the main body case 2 are screwed and fixed to the bottom surface of the main body case 2 through the gap 8. [ Therefore, the three sets of bolts 4 and the nut 4a constitute the three leg portions 9 of the leak check device 1. The tip end of the leg portion 9 protrudes downward from the support plate 3. The distal end of the leg portion 9 comes into contact with the glass plate 34d covering the display surface 34b of the water meter 34 in the state where the water leakage meter 1 and the water meter 34 are connected And a sensing unit 10 for detecting vibration due to water leakage.

In this embodiment, the support plate 3 is circular but is not limited to this shape but may be a polygonal shape such as a quadrangle or a pentagon, and the horizontal direction is balanced with respect to the vertical center line A It may be in the form taken.

In this embodiment, since the leg portion 9 of the leak check device 1 is constituted by a bolt and a nut (a high nut), the height of the three leg portions 9 can be adjusted as needed.

In this embodiment, the leg portion 9 is constituted by the bolt 4 and the nut (the solid nut) 4a, but the present invention is not limited to this. For example, a leg portion may be formed by a flexible member. In this case, when the three leg portions 9 are formed to be curved in the outer peripheral direction from the center line, the connection between the water leakage meter 1 and the water meter 34 is such that the leg portion 9 is straight It is more stable in the case of one state.

A hollow guide 5 is disposed in the gap 8 between the main body case 2 and the support plate 3 in a state where the guide 5 is received in the direction of the support plate 3 from the bottom surface of the main body case 2, 5 is positioned and fixed to the end of the opening 6 which is projected on the bottom surface of the main body case 2 and the other end of the guide 5 is in the open state. The outer wall of the guide 5 is provided with a flange portion 5a which is radially and equally positioned with respect to the vertical center line A and which extends integrally. In this embodiment, the main body case 2, the guide 5 and the eyelid portion 5a are integrally formed. However, the present invention is not limited to this, and even if separate parts are formed to be joined to each other good.

In the guide 5, the acceleration sensor unit 11 having a comparatively large weight is housed in the electric components of the leak checker 1. One end of the acceleration sensor unit 11 is fixed to the inner wall of the guide 5 through the case 11a in a state of protruding from the opening 6 on the bottom surface of the body case 2 to the gap 8 , And the other end of the acceleration sensor unit (11) is positioned and supported in a state of being in contact with the support plate (3). The center line of the acceleration sensor unit 11 in the vertical direction is positioned so as to coincide with the center line A in the vertical direction.

That is, the acceleration sensor unit 11 is accommodated 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. Therefore, the height (length) in the vertical direction of the main body case 2 can be remarkably shortened and the center of the leak check valve 1 as a whole is lowered, It is possible to stabilize the connection state with the regulator 1.

When the water leakage meter 1 and the water meter 34 are connected to each other to inspect the water leakage, the height of the water leakage meter 1 is such that the water meter 34 is housed in the meter box 35 as a whole. Therefore, the leakage is not affected by the wind at the time of the water leakage inspection, and the stability in the state where the water leakage meter 1 and the water meter 34 are connected is further increased.

In this embodiment, the shape of the guide 5 is a cylindrical shape, but the shape is not limited to this. The shape of the guide 5 may be a polygonal shape such as a quadrilateral shape or a pentagonal shape, and an acceleration sensor unit 11, and any shape may be used as long as the horizontal direction is balanced with respect to the center line A in the vertical direction. Since the center of the leak check valve 1 can be further lowered when a member having a large weight is used as the member of the guide 5, The stability at the time of connection is increased.

Next, the power unit 12 having the largest weight among the electric components of the leak check device 1 is accommodated in the main body case 2 and is arranged above the acceleration sensor unit 11, (A), and is fixed to the main body case (2). Therefore, the center of the leak check valve 1 is further lowered. The circuit board unit 13 which is an electric component is positioned in parallel with the center line A in the vertical direction between the power source unit 12 and the acceleration sensor unit 11, 7, and is fixed. Therefore, conventionally, since the circuit board disposed in the vertical direction is arranged in the horizontal direction, the height of the main body case can be greatly shortened, and the center is also lowered.

The lid 7 covers the top opening of the main body case 2 and a display portion 14 is provided as shown in Fig. 2 (a). Therefore, in the lid 7, a portion opposed to the panel surface 14a of the display portion 14 and the various display lamp holes 14b is opened to form a hole, and in these holes, (Indicator lights) are disposed on the front side of the vehicle.

For example, in the case of this embodiment, as shown in Fig. 2 (d), the result of the leakage test is indicated by the water drop marks 15 of three stages. Further, by turning on the operation switch 16, the display 17 such as "during measurement" and "end" is displayed by the color LED. Further, in this embodiment, a liquid crystal display is used for the display portion 14.

The USB connector 18 is provided on the right side of the main body case 2 together with a waterproof connector cover. The USB connector 18 allows the leak check result to be output to an external device (PC or the like) and allows the firmware of the leak checker 1 to be updated or the power source unit 12 to be charged .

Next, a description will be given with reference to Figs. 1 to 3 as to the action of the leakage check using the leakage checker 1. Fig.

First, the water meter 34 is inspected. The water meter reading source opens the cover 35a of the meter box 35 and reads the numerical value (water usage amount) and the like displayed on the display surface 34b of the water meter 34 subsequently. By this act, the meter reading of the capital is finished.

Subsequently, the leak test is executed. The leak check device 1 is placed on the glass plate 34d of the water meter cover 34c covering the display surface 34b of the water meter 34. [ The water leakage meter 1 and the water meter 34 are connected to each other in such a manner that the tip ends of the three leg portions 9 of the water leakage meter 1 are in contact with the water meter head ring 34e. As described above, the gap 8 is interposed between the body case 2 of the water leakage checker 1 and the support plate 3, and the acceleration sensor unit 11 having a relatively large weight is provided in the gap 8 And the power supply unit 12 having the largest weight is disposed in the vicinity of the bottom surface of the main body case 2 in the main body case 2, Which is very low compared to the product. In addition, the distal end portion of the leg portion 9 constituted by the three sensing portions 10 is in a state of being firmly in contact with the water meter head ring 34e protruding from the surface of the glass plate 34d. Therefore, the leak determining device 1 can be self-sustained in a stable state on the glass plate 34d surface of the meter cover 34c of the water meter 34 by the three leg portions 9, The connection mechanism between the water meter 1 and the water meter 34 is very stable.

As described above, since the acceleration sensor unit 11 having a relatively large weight is disposed in the gap 8 and the circuit board unit 13 is also disposed parallel to the body case 2, The vertical height of the leak check valve 1 is designed to be lower. Therefore, even when the water leakage meter 1 and the water meter 34 are connected to each other, they are stored in the meter box 35, so that they are not affected by the wind and the stability is further improved.

In this state, the water meter reading source turns on the operation switch 16 to read the panel surface 14a of the display section 14. [ At this time, when there is a leak point, the leak sound is detected by the leak detector 1 and the result is displayed on the panel surface 14a by any one of the three-step numerical marks 15 indicating the suspicion of leakage do. This result can be output to an external device (PC or the like) via the USB connector 18 or a built-in Blue tooth (registered trademark).

[Industrial Availability]

INDUSTRIAL APPLICABILITY The present invention can be applied to water meters laid on a nationwide scale because water leakage inspections can be performed at the same time when the water meter inspecting source is inspected.

1: Leak check period
2: a case body of the water leakage fixture (1)
3: Support plate
5: Guide
5a: a wing portion of the guide 5
8: Clearance
9: leg
10:
11: Acceleration sensor unit
12: Power supply unit
13: Circuit board unit
34: water meter
34b: display surface of the water meter 34
34c: meter cover of water meter (34)
34d: glass plate of the water meter 34
34e: the water meter of the water meter (34)
A: Vertical center line of leak indicator 1

Claims (6)

A water meter provided in the meter box and having a water meter cover formed of a transparent plate covering the display surface and a water meter head ring for fastening the transparent plate,
This water leakage detector is mounted on the upper surface of the water meter cover to perform water leakage inspection
In the connection mechanism between the water meter and the leak determining device,
The leak determining device comprises: a main body case which houses therein an electric component therein and has an opening portion opened at a central portion of the bottom thereof;
And the leg portion is disposed at an equal angle with respect to the vertical center line of the leak check valve, and three leg portions projecting from the bottom face are provided on the bottom surface of the main body case A support plate fixed through the gap,
A sensing unit capable of detecting a leakage sound by bringing the ends of the three legs protruding from the support plate into contact with the transparent plate of the water meter,
And a hollow guide which is disposed on the gap between the bottom surface of the main body case and the support plate and is received by the support plate from the bottom surface of the main body case,
Wherein the acceleration sensor unit as the electric component is disposed parallel to the bottom surface of the main body case in a state of being in contact with the support plate together with the accommodation box in the guide and the center line of the vertical direction is aligned with the center line, The acceleration sensor unit is positioned and fixed to the opening so that the acceleration sensor unit is located in the gap,
The power supply unit as the electric component is arranged such that the center line of the vertical direction is aligned with the center line of the leak check valve and is positioned parallel to the upper side of the acceleration sensor unit, Fixed,
The circuit board unit as the electrical component is aligned with the center line of the leak check valve in the vertical direction and positioned parallel to the power source unit and fixed to the main body case to lower the center of gravity of the leak check valve However,
The leak checker is mounted on the upper surface of the water meter cover so that the tip ends of the three leg portions of the leak detector are connected to the water meter with the water meter head ring in contact therewith, And the judging device is independent on the water meter in a stable state. The method according to claim 1,
Wherein the leg portion is curved in an outer peripheral direction with respect to the center line. 3. The method according to claim 1 or 2,
Wherein the guide is formed integrally with a wing portion positioned at an equal angle with respect to the center line. A water meter provided in the meter box and having a water meter cover formed of a transparent plate covering the display surface and a water meter head ring for fastening the transparent plate,
And a water leakage detector for detecting water leakage on the upper surface of the water meter cover,
A main body case in which an opening is provided in a central portion of the bottom surface of the main body case together with the main body of the electric component,
And the leg case is disposed at an equiangular angle with respect to the vertical center line of the leak check valve and protruded from the lower face, A support plate,
Wherein the guide member is disposed on the gap between the bottom surface of the main body case and the support plate and is received by the support plate from the bottom surface of the main body case,
The main body case accommodates the power supply unit and the circuit board unit, which are electrical parts, in an upward direction from the inner bottom surface in such a manner that the center line of the power supply unit and the circuit board unit are aligned with each other in parallel with the bottom surface, Respectively,
The tips of the three legs protruding from the lower surface of the support plate serve as a sensing unit for detecting vibration generated by water leakage,
Wherein the guide includes an acceleration sensor unit therein and is disposed parallel to the bottom surface of the main body case in contact with the support plate so as to align the center line of the vertical direction with the center line, The height of the water leakage determining device is limited by locating and fixing the opening of the sensor unit so that the sensor unit is positioned,
The leak checker is mounted on the upper surface of the water meter cover so that the tip ends of the three leg portions of the leak detector are connected to the water meter with the water meter head ring in contact therewith, And the judging device stands on the water meter in a stable state. 5. The method of claim 4,
Wherein the leg portion is curved in an outer peripheral direction with respect to the center line. The method according to claim 4 or 5,
Wherein the guide is formed integrally with a wing portion positioned equi-angularly with respect to the center line.

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