KR102561298B1 - Pipe attaching type remote leakage detection sensor - Google Patents

Abstract

The present invention relates to a pipe-attached remote water leak sensor that is attached to an underground pipe to detect leak sound generated in the underground pipe and to externally transmit leak sound data from a road surface on the ground, and more particularly, is tightly fixed to the underground pipe. The waterproof protection tube (100) with the leak sound transmission closing cap (200) inserted at the bottom is buried from the road surface to the underground pipe (1), and the leak sound sensor module (300) suspended by the cable (400) is installed in the waterproof protection tube (100). It is inserted so that it is coupled to the leak sound transmission closing cap 200 by a magnet, and the relay device 500 can be installed by inserting and fixing the top of the waterproof protection tube 100.

Description

Pipe-attached remote water leak sensor {PIPE ATTACHING TYPE REMOTE LEAKAGE DETECTION SENSOR}

The present invention relates to a pipe-attached remote water leak sensor that is attached to an underground pipe to detect a leak sound generated in the underground pipe and transmits leak sound data from an underground road to the outside.

In order to detect leaks in water supply pipes, leak detection is performed by listening to the leak sound transmitted to valves installed in the pipes or to the road surface using an auditory device. In addition, a method of regularly collecting and analyzing leak sound by attaching a leak sensor to the valve is also used.

However, since the leak sound propagating through the pipe as a medium has a limited transmission distance depending on the material characteristics of the pipe, it is almost impossible to perform a leak detection for the entire pipe section simply by measuring the leak sound at the valve.

Therefore, it is necessary to detect leak sound at intervals below the transmission distance limit, which depends on the characteristics of the pipe material. For example, a PVC pipe with a transmission distance of up to 10 m must measure leak sound at intervals of 20 m or less, and a metal pipe with a relatively large transmission distance but a limit of 100 m should measure leak sound at an interval of 200 m or less. shall,

Moreover, in order to apply the method of estimating the leak point by analyzing the leak sound measured at two points, the leak sound measurement interval must be further shortened.

To this end, Patent Publication No. 10-2017-0071044 discloses a sensing unit installed at intervals in a pipeline and a technology using RFID installed on the ground at the point where each sensing unit is installed and connected to the sensing unit to receive sensing information from the sensing unit. This is disclosed.

However, the sensing unit is difficult to install as it must be installed while piping is being buried or excavation work is being carried out at a separate buried piping location, and maintenance after installation is difficult, and it is difficult to replace due to failure and to improve performance. It is also difficult to replace. In addition, since the sensing unit must be attached to an underground pipe, there is a risk of the pipe being separated from the pipe during burial or excavation work, and there is also a risk of damage in the process of filling the soil.

On the other hand, a piezoelectric element is used as a sensor for detecting leak sound in pipes. The frequency range that can be measured with a piezoelectric element varies depending on the size and shape of the element and the load applied to the element. , are manufactured and used to have an appropriate frequency range.

However, since the frequency of the leak sound is different depending on the leak situation, the leak sound out of the frequency range of the piezoelectric element cannot be accurately detected.

KR 10-2017-0071044 A 2017.06.23.

Accordingly, an object of the present invention is to provide a pipe-attached remote leak sensor that can firmly fix the leak sensor to an underground pipe, is easy to install and maintain, and can detect leak sound in a wide frequency band.

In order to achieve the above object, the present invention is a pipe-attached remote leak sensor for detecting a leak in an underground pipe, which is buried from the road surface to the underground pipe (1), and uses a pipe clamp 110 to connect the lower end to the underground pipe ( 1) a tube-type waterproof protection tube 100 fixed to; The upper part is interpolated and fixed to the lower end of the waterproof protection tube 100, the exposed part of the lower part is brought into close contact with the underground pipe 1, and the leakage sound transmission finish cap 200 having a first magnet 210 at the inner part; After being put into the waterproof protection tube 100 while hanging on the cable 400 and descending, the second magnet 311 provided on the bottom is attached to the first magnet 210 so that it closely adheres to the leak sound transmission closing cap 200 And, the leakage sound propagated to the underground pipe (1) and the leakage sound transmitted through the closing cap (200), the piezoelectric element (320, 330) installed in the inner space to be connected to the cable (400) to detect the leakage sound. sensor module 300; It is installed on the top of the waterproof protection tube 100 and is connected to the top of the cable 400, and the relay device 500 remotely transmits leak sound data obtained through the piezoelectric elements 320 and 330; includes.

The waterproof protection tube 100 is composed of a corrugated pipe 101 in at least a portion thereof, so that the buried pipe can be bent toward the road surface.

Four protrusions 220 arranged in a square arrangement are provided on the bottom surface of the leak sound transmission finishing cap 200 to bring the protrusions 220 into close contact along the curved surface of the underground pipe 1.

The pipe clamp 110 fixes the plate 112 fixed to the lower end of the waterproof protection cylinder 100 to the underground pipe 1 with a U-bolt 111 so that the leak sound transmission finishing cap 200 penetrates.

The piezoelectric elements 320 and 330 built into the leak sound sensor module 300 have a low frequency piezoelectric element 320 whose detectable frequency range is biased towards a relatively low frequency and a relatively high frequency biased It is composed of a high-frequency piezoelectric element 330.

The leak sound sensor module 300 fixes the edges of two piezoelectric elements arranged vertically and spaced apart, and pressurizes the upper piezoelectric element with a load carrier 340 built in to freely flow up and down, so that the low-frequency piezoelectric element 320 ), and the lower piezoelectric element is used as the high-frequency piezoelectric element 330.

The relay device 500 is detachably inserted into the top of the waterproof protection cylinder 100, and the top of the waterproof protection cylinder 100 is covered, but the relay device 500 can be taken out by an open structure. 600 is installed to be exposed on the road surface.

The road surface protection cap 600 consists of a detachable transparent cover 620 covering the relay device 500 inserted into the top of the waterproof protection cylinder 100, and is detachable for covering only the rim of the transparent cover 620. The cover 630 is also detachably fixed to have an open structure, and the relay device 500 includes a lamp 540, a power supply unit 530 for power supply, a communication unit 520 for remote transmission, and leak sound. It includes a circuit unit 510 that remotely transmits data and turns on the lamp 540 when the intensity of the leakage sound is greater than a reference value, and at least the lamp 540 and the antenna of the communication unit 520 are placed under the transparent cover 620. Provided to be placed in

Since the present invention is installed in such a way as to insert the leak sound sensor module 300 after burying the waterproof protection cylinder 100 having the leak sound transmission closing cap 200 to be installed in the underground pipe 1, the underground pipe It can be firmly attached, as well as easy to install and maintain.

In addition, according to an embodiment of the present invention, two piezoelectric elements 320 and 330 are used, but one of them is pressurized to increase the sensitivity of the leak sound of low frequency, so that the leak sound generated at various frequencies is two piezoelectric elements. Through the elements 320 and 330, it can be sensed without missing.

In addition, according to an embodiment of the present invention, a waterproof structure, a structure that closely adheres to an underground pipe, and a robust structure are provided, so that water leakage can be detected in real time by providing water leakage data without minor failures and malfunctions.

1 is an underground perspective view showing a state in which a pipe-attached remote water leak sensor according to an embodiment of the present invention is installed in an underground pipe (1).
2 is a cross-sectional view showing a state in which a pipe-attached remote water leak sensor according to an embodiment of the present invention is installed in an underground pipe (1).
3 is a cross-sectional view of FIG. 2, which enlarges the lower portion of the waterproof protection tube 100 and shows in detail the leak sound transmission closing cap 200 and the leak sound sensor module 300 installed at the lower portion of the waterproof protection tube 100 A view showing the arrangement of a plurality of projections 220 by additionally showing a bottom view of the leak sound transmission finishing cap 200.
FIG. 4 is an enlarged view showing the leakage sound sensor module 300 shown in FIG. 3 in detail.
5 is a view showing in detail the relay device 500 and the road surface protection cap 600 installed on the upper part of the waterproof protection cylinder 100 by enlarging the upper part of the waterproof protection cylinder 100 in the cross-sectional view of FIG.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described so that those skilled in the art can easily implement it.

1 and 2, the pipe-attached remote leak sensor according to an embodiment of the present invention detects and remotely transmits the leak sound propagated through the underground pipe 1 when a leak occurs in the underground pipe 1. As, it has a structure that leads to the ground in the underground pipe (1).

Here, the underground pipe 1 may be, for example, a water supply pipe buried in the ground, and sometimes may be a pipe through which fluid flows, such as a sewage pipe, a rainwater pipe, a gas pipe, etc. What is necessary is just to be a medium that forms a propagation path.

However, the leak sound has a limit in transmission distance depending on the material of the underground pipe (1), which is the medium. It should be detectable. For example, since a pipe made of plastic has a relatively shorter transmission distance of leak sound than a pipe made of metal, it is necessary to detect leak sound at shorter intervals.

The present invention is a device that is installed along the underground pipe (1) at intervals considering the material characteristics of the underground pipe (1) to detect leak sound, It has an attachment structure, an installation structure that is easy to install and maintain, and uses a sensor module for detecting leak sound generated in various wavelengths.

For this purpose, the pipe-attached remote water leak sensor according to an embodiment of the present invention has a waterproof protection tube 100 buried from the road surface to the underground pipe 1, and a leak sound transmission closing cap installed at the bottom of the waterproof protection tube 100 ( 200), the leak sound sensor module 300 accommodated inside the lower part of the waterproof protection tube 100, the cable 400 wired in a hanging manner inside the waterproof protection tube 100, and the top of the waterproof protection tube 100 It includes a relay device 500 installed in and a road protection cap 600 covering and protecting the relay device 500.

The waterproof protection tube 100 is a tube for forming a passage from the surface of the part where the leak sound is to be detected in the underground pipe 1 to the ground above the part, and at least a part of the section is composed of a corrugated pipe 101, and the road surface It bends toward the buried pipe, expands or contracts, and adjusts the length so that the pipe can be piped. Accordingly, it is easy to install the buried pipe, prevent damage due to ground flow, and make it possible to hold the exposed part of the road surface in an appropriate position according to the condition of the road surface.

On the other hand, as shown in the figure, even if some sections are composed of corrugated pipes 101, at least the lower pipe part and the upper pipe part are composed of straight pipes 103 without corrugations to stably operate the leak sound sensor module 300 and the relay device 500. It is good to be able to accommodate it, and for this purpose, it is good to connect the straight pipe 103 to both ends of the corrugated pipe 101 using the heterogeneous coupler 102.

Here, it is preferable to use a flexible pipe as the corrugated pipe 101 so that it can be installed without length adjustment even if the buried depth of the underground pipe 1 is different for each installation location.

The lower end of the waterproof protection tube 100 is fixed to the underground pipe 1 using the pipe clamp 110.

The pipe clamp 110 fixes the lower end of the waterproof protection tube 100 in a form of blocking the inner hollow of the waterproof protection tube 100, and a plate having a through hole 113 formed at a portion facing the inner hollow of the waterproof protection tube 100. 112 and plate 112, each fastened to both ends in the direction along the underground pipe 1 among the plates 112, which wraps around the bottom of the underground pipe 1 and raises both ends on the underground pipe 1 Plate 112 After passing through, it includes a U-bolt 111 for fastening a nut. In this way, by firmly fixing the plate 112 to the underground pipe 1, the leak sound transmission finishing cap 200 installed at the lower end of the waterproof protection pipe 100 can be closely attached to the underground pipe 1 .

As shown, after installing the flange 114 at the lower end of the waterproof protection tube 100, the flange 114 is fixed to the plate 112 to fix the waterproof protection tube 100 to the plate 112, through which, The lower part of the waterproof protection tube 100 maintains the posture in the direction orthogonal to the underground pipe 1, so that the leak sound sensor module 300 inserted into the waterproof protection tube 100 goes down to the lower end and transmits the leak sound as described later. It is good to have it in close contact with the cap 200 stably.

The leak sound transmitting closing cap 200 and the leak sound sensor module 300 will be described with reference to FIGS. 3 and 4 .

3 is a cross-sectional view of FIG. 2, enlarging the lower portion of the waterproof protection tube 100 and detailing the leak sound transmission finishing cap 200 and the leak sound sensor module 300 installed at the lower portion of the waterproof protection tube 100. It is a drawing showing the arrangement of the plurality of projections 220 by adding a bottom view of the leak sound transmission finishing cap 200.

FIG. 4 is an enlarged view showing the leakage sound sensor module 300 shown in FIG. 3 in detail.

The leak sound transmission finishing cap 200 is interpolated and fixed to the lower end of the waterproof protection tube 100 to form an upper part for waterproofing the lower end of the waterproof protection tube 100, and protrudes below the waterproof protection tube 100 to make the plate It has a shape with a lower portion through which the through hole 113 of (112) passes. Accordingly, by fixing the waterproof protection tube 100 to the underground pipe 1 using the pipe clamp 110, the lower part of the leak sound transmission closing cap 200 can be brought into close contact with the underground pipe 1 .

A first magnet 210 is provided facing the inside of the waterproof protection tube 100 at an upper portion of the leak sound transmission finishing cap 200 inserted into the lower end of the waterproof protection tube 100.

In addition, a plurality of protrusions 220 are formed on the bottom surface of the lower portion of the leak sound transmission finishing cap 200, so that the protrusions 220 adhere to the underground pipe 1. Here, the protrusions 220 are composed of four arranged in a square arrangement, so that the upper portion of the underground pipe 1 crosses between the two opposing pairs of protrusions 220 so as to be in close contact with each other. Through this, regardless of the size of the outer diameter of the underground pipe (1), it can be closely adhered along the surface curvature of the underground pipe (1). Meanwhile, the protrusions 220 may be formed in two rows that can exert the same action and effect as the square arrangement. That is, each column has three or more protrusions, and the plate 112 of the pipe clamp 110 is attached to the ground using a U-bolt 111 so that a part of the upper surface of the underground pipe 1 passes along the space between the two columns. By fixing to the pipe (1), a plurality of pairs of protrusions are partially wrapped along the curved surface of the underground pipe (1) and brought into close contact.

The leak sound sensor module 300 includes a case 310 having an outer diameter smaller than the inner diameter of the waterproof protection cylinder 100 so as to be inserted into the waterproof protection cylinder 100, and a piezoelectric element embedded in the case 310. It includes elements 320 and 330 and a load transmission body 340 .

Here, the case 310 has a second magnet 311 facing the first magnet 210 with an opposite polarity on its bottom surface, and is electrically connected to the built-in piezoelectric elements 320 and 330 The cable 400 penetrates the upper part and extends to the outside.

Accordingly, the leak sound sensor module 300 is inserted through the upper opening of the waterproof protection tube 100 while hanging on the cable 400 and descends by its own weight, leading to the lower interior of the waterproof protection tube 100, , The first magnet 210 and the second magnet 311 can be attached to each other by attraction according to opposite polarities. That is, by bringing the case 310 of the leak sound sensor module 300 into close contact with the leak sound transmission finishing cap 200, the leak sound propagated to the underground pipe 1 is transmitted through the leak sound transmission closing cap 200. to be delivered to the furnace case 310. To this end, the cable 400 is firmly fixed to the upper surface of the case 310 by using a cable that can withstand the tension according to the load of the leak sound sensor module 300. Alternatively, a separate wire to bear the load may be fixed to the case 310 and used.

The piezoelectric elements 320 and 330 sense the vibration of the case 310 to which the leak sound is transmitted and sense the leak sound, and the low-frequency piezoelectric element 320 having a relatively high sensitivity for measuring the leak sound in the low frequency band; It is composed of a high-frequency piezoelectric element 330 having a relatively high sensitivity for measuring leakage sound in a high frequency band, so that leakage sound appearing in various frequency components can be well sensed.

In general, a piezoelectric element is an element that detects vibration as an electrical signal, and has a measurable frequency range. At this time, the frequency range is selected as an area that responds linearly due to a small frequency sensitivity deviation, The frequency response is viewed as an accurate region. Preferably, the narrower the frequency range, the higher the accuracy of the frequency response, so even if the frequency range is narrowed, it is better to set it as a range with a small frequency sensitivity deviation.

However, the frequency range is determined by a resonant frequency that varies depending on the size and shape of the piezoelectric element and the load applied to the piezoelectric element.

According to an embodiment of the present invention, the piezoelectric elements 320 and 330 are embedded in the case 310 so as to be spaced apart vertically using plate-shaped piezoelectric elements, and then the piezoelectric elements 320 disposed on the top is pressurized by the additionally built-in load carrier 340 to freely flow up and down to be used as a low-frequency piezoelectric element 320, and the other piezoelectric element 330 disposed below is used as a high-frequency piezoelectric element 330 do.

That is, the piezoelectric element 320 disposed on the upper portion is pressed by the load of the load carrier 340 to adjust the resonance frequency, so that the frequency range is biased toward a relatively low frequency compared to before applying the load, so that the sensitivity of low-frequency leak sound It can be used as a good low-frequency piezoelectric element 320. Since the piezoelectric element 330 disposed below does not apply a load, it has a natural frequency range biased toward a relatively high frequency compared to the low-frequency piezoelectric element 320, so it can be used as a high-frequency piezoelectric element 330.

Describing a specific embodiment of the built-in structure, the inside of the case 310 includes a first space 312 that accommodates the load transmission body 340 and allows it to flow vertically, and below the first space 312 A second space 313 connected to the first space 312 is formed, and a hollow piezoelectric element fixing plate 314 with upper and lower openings is screwed into the upper space of the second space 313, A state in which the upper opening and the lower opening of the piezoelectric element fixing plate 314 are covered with piezoelectric elements 320 and 330, respectively, and the piezoelectric elements 320 and 330 are fixed so that the two piezoelectric elements 320 and 330 fix the edges. spaced and placed vertically.

In addition, the load transmission body 340 accommodated in the first space 312 is fitted between the guide protrusion 316 protruding from the ceiling of the first space 312 and the guide groove 343 formed on the upper surface of the load transmission body 340. The combination enables the free flow up and down stably, and the pressing end 341 protrudes from the bottom to intensively press the low-frequency piezoelectric element 320. Here, a protective pad 342 may be attached to the pressure plate 341 to reduce impact with the low-frequency piezoelectric element 320 or to prevent scratches.

Meanwhile, the load transmission body 340 pressurizes the piezoelectric element 320 to have an appropriate size and weight so as to obtain a desired frequency range. In order to wire the cable 400 to the low-frequency piezoelectric element 320 and the high-frequency piezoelectric element 330, the wire passes through the load carrier 340 with a margin and does not interfere with the free flow of the load carrier 340 as much as possible. The hole 344 and the wiring hole 315 formed in the case 310 so as to reach the low-frequency piezoelectric element 320 and the high-frequency piezoelectric element 330 after penetrating the load transmission body 340, but are not limited thereto. Alternatively, a wiring hole may be formed only in the case 310 .

The relay device 500 and the road protection cap 600 will be described with reference to FIG. 5 .

5 is a view showing in detail the relay device 500 and the road surface protection cap 600 installed on the upper portion of the waterproof protection tube 100 by enlarging the upper portion of the waterproof protection tube 100 in the cross-sectional view of FIG. 2 .

The relay device 500 is connected to the top of the cable 400 suspended through the waterproof protection box 100, has a case that can be detachably inserted into the top of the waterproof protection box 100, and is inside the case. Leakage using the lamp 540, the power supply unit 530 for power supply, the communication unit 520 for wireless communication, and the low-frequency piezoelectric element 320 and the high-frequency piezoelectric element 330 connected to the cable 400. A circuit unit 510 that obtains sound data and remotely transmits it through the communication unit 520 and turns on the lamp 540 when the leakage sound intensity is equal to or greater than a preset reference value is provided.

Here, at least the lamp 540 and the communication unit 520 are built into the upper part of the case, and the upper surface of the case covering the upper built-in space is made of a material that is transparent and does not interfere with wireless communication. Of course, if the communication unit 520 has a structure separated from the antenna, only the antenna can be installed in the upper built-in space, and a solar cell can be installed in the upper built-in space to be charged and used by the power supply unit 530.

The road surface protection cap 600 covers the upper end of the waterproof protection cylinder 100 into which the relay device 500 is inserted and is fixed to the waterproof protection cylinder 100 to be exposed on the road surface, and the relay device 500 After taking it out, it has an open structure in which the leak sound sensor module 300 can also be taken out by pulling the cable 400. 620, and a detachable and detachable cover 630.

The body 610 has a hollow shape that can take out the relay device 500 inserted into the waterproof protection tube 100 by extrapolating and fixing it to the top of the waterproof protection tube 100, and inserting the transparent cover 620 into the upper opening. An expansion space 611 is created at the top so that it can be inserted. In addition, a locking jaw 612 is formed in the expansion space 611, and the outer periphery of the upper end of the relay device 500 is extended to be caught on the locking jaw 612, so that the relay device 500 is inserted into the waterproof protection tube 100. Even if it loses, it does not fall into the waterproof protection box 100, and it is easy to take out.

The transparent cover 620 is inserted into the upper expansion space 611 of the body 610 to close the body 610, but allows it to be taken out of the expansion space 611, and is composed of a material that is not damaged by external impact. .

Since the transparent cover 620 mounted in this way covers the top of the lamp 540 of the repeater 500 and the communication unit 520 (or the antenna of the communication unit 520), the light of the lamp 540 is mounted. Let it irradiate upward and not interfere with radio communication.

The detachable cover 630 is configured in the form of an annular plate covering only the upper end of the body 610 and the edge of the transparent cover 620, and is fixed to the body 610 but is detachably fixed. As shown, it can be fastened to the body 610 by passing through the screw 631, but is not limited thereto, and it is satisfactory if the transparent cover 620 can be taken out by being separable from the body 610.

On the other hand, although not shown in detail, sealing when the body 610 is extrapolated and fixed to the waterproof protection tube 100, and when the transparent cover 620 is inserted into the expansion space 611 of the body 610, an O-ring or By sealing using a waterproof pad, it is good to waterproof the top of the waterproof protection tube 100 as well.

In addition, after the pipe-attached remote leak sensor according to the present invention is installed at predetermined intervals along the underground pipe (1), leak sound data transmitted from each pipe-attached remote leak sensor are collected and leaked according to the result of correlation analysis. The location can be estimated, and since the technology for estimating the leak location is a well-known technology, a detailed description thereof will be omitted.

Although the above has been shown and described as specific embodiments to illustrate the technical idea of the present invention, the present invention is not limited to the same configuration as the specific embodiments as described above, and various modifications are made to the extent that they do not depart from the scope of the present invention. It can be. Accordingly, such modifications should be regarded as belonging to the scope of the present invention, and the scope of the present invention should be determined by the claims described below.

1: Underground Piping
100: waterproof protection box
101: corrugated pipe 102: heterogeneous coupler 103: straight pipe
110: pipe clamp 111: U bolt 112: plate
113: through hole 114: flange
200: leak sound transmitting closing cap
210: magnet 220: protrusion
300: leak sound sensor module
310: case 311: magnet 312: first space
313: second space 314: piezoelectric element fixing plate
315: wirer 316: guide protrusion
320: low frequency piezoelectric plate
330: high-frequency piezoelectric plate
340: load transmission body 341: pressure end 342: protection pad
343: guide groove 344: wirer
400: cable
500: relay device
510: circuit part 520: communication part 530: power supply part
540: lamp
600: road surface protection cap
610: body 611: expansion space 612: locking jaw
620: transparent cover
630: detachable cover 631: screw

Claims (8)

A tubular waterproof protection tube 100 buried from the road surface to the underground pipe 1 and having a lower end fixed to the underground pipe 1 using a pipe clamp 110;
The upper part is interpolated and fixed to the lower end of the waterproof protection tube 100, the exposed part of the lower part is brought into close contact with the underground pipe 1, and the leakage sound transmission finish cap 200 having a first magnet 210 at the inner part;
After being put into the waterproof protection tube 100 while hanging on the cable 400 and descending, the second magnet 311 provided on the bottom is attached to the first magnet 210 so that it closely adheres to the leak sound transmission closing cap 200 And, the leakage sound propagated to the underground pipe (1) and the leakage sound transmitted through the closing cap (200), the piezoelectric element (320, 330) installed in the inner space to be connected to the cable (400) to detect the leakage sound. sensor module 300;
A relay device 500 installed at the top of the waterproof protection tube 100 and connected to the top of the cable 400 to remotely transmit leak sound data obtained through the piezoelectric elements 320 and 330;
including,
The leak sound sensor module 300
The frequency range that can be sensed by fixing the edges of two piezoelectric elements arranged at intervals up and down, and pressurizing the upper piezoelectric element with a load carrier 340 built in a free flow up and down is relatively low. It is used as a low-frequency piezoelectric element 320 biased in frequency and a high-frequency piezoelectric element 330 whose frequency range that can detect the lower piezoelectric element is biased toward a relatively high frequency.
Pipe-mounted remote leak sensor. According to claim 1,
The waterproof protection box 100 is
At least a part of the section is configured with a corrugated pipe 101 so that the buried pipe can be bent toward the road surface
Pipe-mounted remote leak sensor. According to claim 1,
Four protrusions 220 arranged in a square arrangement are provided on the bottom surface of the leak sound transmission finishing cap 200, so that the protrusions 220 are in close contact along the curved surface of the underground pipe 1
Pipe-mounted remote leak sensor. According to claim 1,
The pipe clamp 110 is
The plate 112 fixed to the lower end of the waterproof protection cylinder 100 is fixed to the underground pipe 1 with a U-bolt 111 so that the leak sound transmission finishing cap 200 penetrates
Pipe-mounted remote leak sensor. delete delete According to claim 1,
The relay device 500 is detachably inserted into the top of the waterproof protection cylinder 100, and the top of the waterproof protection cylinder 100 is covered, but the relay device 500 can be taken out by an open structure. 600 is installed to be exposed on the road surface
Pipe-mounted remote leak sensor. According to claim 7,
The road surface protection cap 600 is
A part covering the relay device 500 inserted into the top of the waterproof protection box 100 is composed of a detachable transparent cover 620, and the detachable cover 630 covering only the rim of the transparent cover 620 is also detachable. fixed to have an open structure,
The relay device 500 is
A lamp 540, a power supply unit 530 for power supply, a communication unit 520 for remote transmission, and a circuit unit that remotely transmits leak sound data and turns on the lamp 540 when the leak sound intensity is greater than a reference value ( 510), and at least the lamp 540 and the antenna of the communication unit 520 are disposed under the transparent cover 620.
Pipe-mounted remote leak sensor.