Water supply network leakage detection device based on Internet of Things

Abstract

The utility model discloses a water supply network leakage detection device based on the Internet of Things, and relates to the technical field of water supply networks. The problem that although an existing pipe network leakage detection device can detect the leakage phenomenon, emergency treatment cannot be conducted on water seepage or water leakage events, and consequently a large amount of water resources are wasted is solved. The two ends of the connecting pipe are each provided with a flange, the flange at one end of the connecting pipe is connected with the end of the pipe network first water supply pipe, and the flange at the other end of the connecting pipe is connected with the end of the pipe network second water supply pipe. The joints of flanges at the two ends of the connecting pipe and the first pipe network water supply pipe and the joints of flanges at the two ends of the connecting pipe and the second pipe network water supply pipe are each sleeved with a detection shell assembly, the two ends of an inner hole of each detection shell assembly are each provided with a sealing ring in an embedded mode, and a pressure sensor, a central controller and a flow meter are sequentially arranged in the middle of the outer surface of the connecting pipe from left to right. The first pipe network water supply pipe and the second pipe network water supply pipe are each provided with an electromagnetic valve. The device is suitable for the technical field of water supply network leakage detection.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply pipe networks, and in particular to a water supply pipe network leakage detection device based on the Internet of Things. Background Art

[0002] Pipeline leakage refers to the phenomenon of water loss during the transmission and distribution process. In the actual water supply process, there are certain indicators, namely the pipeline leakage rate, which is the ratio between the amount of water leakage in the pipeline and the total amount of water supply. In order to reduce the cost of tap water supply and avoid the loss of a large amount of water resources, in order to ensure that the leakage of the pipeline network can be quickly detected, it is necessary to install a leakage detection device on the pipeline network. Although the existing pipeline leakage detection device can achieve the effect of leakage detection operation, there are still certain problems in use. For example, the device is installed between two transmission pipelines. After detecting the water flow and water pressure in the pipeline, if there is a leakage, the pressure and flow of the water flow will be reduced accordingly. Comparing the water supply pressure and water supply flow at two adjacent points on the pipeline to determine whether there is a leakage, even if the leakage location is detected, it is not possible to quickly handle the seepage or leakage incident.

[0003] In summary, although the existing pipe network leakage detection device can detect the existence of leakage, it is unable to carry out emergency treatment of water seepage or leakage, thus resulting in a large amount of water resource waste. Utility Model Content

[0004] The utility model proposes a water supply pipe network leakage detection device based on the Internet of Things to solve the problem that the existing pipe network leakage detection device can detect the existence of leakage but cannot perform emergency treatment on water seepage or leakage, thereby causing a large amount of water resource waste.

[0005] The utility model is a water supply network leakage detection device based on the Internet of Things, which comprises a connecting pipe 1, a solenoid valve 2, a pressure sensor 5, a central controller 6, a flow meter 7, a sealing ring 8, a flange 9 and a detection housing assembly;

[0006] A flange 9 is provided at each end of the connecting pipe 1, and the flange 9 at one end of the connecting pipe 1 is connected to the end of the No. 1 water supply pipe 3 of the pipe network, and the flange 9 at the other end of the connecting pipe 1 is connected to the end of the No. 2 water supply pipe 4 of the pipe network. A detection housing assembly is respectively sleeved at the connection between the flanges 9 at both ends of the connecting pipe 1 and the No. 1 water supply pipe 3 and the No. 2 water supply pipe 4 of the pipe network, and a sealing ring 8 is respectively embedded at both ends of the inner hole of the detection housing assembly. A pressure sensor 5, a central controller 6 and a flow meter 7 are arranged in sequence from left to right in the middle of the outer surface of the connecting pipe 1, and a solenoid valve 2 is respectively arranged on the No. 1 water supply pipe 3 of the pipe network and the No. 2 water supply pipe 4 of the pipe network;

[0007] Further, the detection housing assembly includes a humidity sensor 10, a detection housing upper part 11 and a detection housing lower part 12; the detection housing upper part 11 and the detection housing lower part 12 are connected by a bolt and nut assembly, and a plurality of humidity sensors 10 are evenly arranged on the inner walls of the detection housing upper part 11 and the detection housing lower part 12;

[0008] Further, the pressure signal output end of the pressure sensor 5 is connected to the pressure signal input end of the central controller 6, the flow signal output end of the flow meter 7 is connected to the flow signal input end of the central controller 6, the humidity signal output end of the humidity sensor 10 is connected to the humidity signal input end of the central controller 6, the No. 1 electromagnetic signal output end of the central controller 6 is connected to one of the electromagnetic valves 2, and the No. 2 electromagnetic signal output end of the central controller 6 is connected to the other electromagnetic valve 2;

[0009] Furthermore, the inner diameter of the connecting pipe 1 is equal to the inner diameter of the No. 1 water supply pipe 3 of the pipe network;

[0010] Furthermore, a signal transmitter is provided on the outer surface of the connecting pipe 1, and the alarm signal of the central controller 6 is sent out through the signal transmitter;

[0011] Furthermore, the central controller 6 adopts a Siemens micro PLC controller;

[0012] Furthermore, the inner walls of both end surfaces of the detection housing upper portion 11 and the detection housing lower portion 12 are respectively processed with semicircular grooves along the circumferential direction;

[0013] Furthermore, the sealing ring 8 is composed of an upper sealing ring and a lower sealing ring, and an upper sealing ring is embedded in the semicircular grooves on the inner circular walls of the two end surfaces of the upper part 11 of the detection housing, and a lower sealing ring is embedded in the semicircular grooves on the inner circular walls of the two end surfaces of the lower part 12 of the detection housing;

[0014] Furthermore, when in use, the device is installed between the No. 1 water supply pipe 3 of the pipeline network and the No. 2 water supply pipe 4 of the pipeline network, and is essentially connected to the pipeline network water supply pipe through the flanges 9 at both ends of the connecting pipe 1; then, the two groups of detection shell components are respectively installed at the connection between the connecting pipe 1 and the No. 1 water supply pipe 3 of the pipeline network and the No. 2 water supply pipe 4 of the pipeline network, and the detection shell upper part 11 and the detection shell lower part 12 are connected by bolt and nut assemblies, and a plurality of humidity sensors 10 are evenly arranged on the inner walls of the upper part 11 of the detection shell and the lower part 12 of the detection shell, which are combined with the sealing ring 8 consisting of the upper half of the sealing ring and the lower half of the sealing ring, and the semicircular grooves on the inner circular walls of the two end surfaces of the upper part 11 of the detection shell are respectively embedded with an upper half of the sealing ring, and the semicircular grooves on the inner circular walls of the two end surfaces of the lower part 12 of the detection shell are respectively embedded with a lower half of the sealing ring, so as to realize the use of the humidity sensor 10 to detect the humidity at the end of the connecting pipe 1 and the water supply pipe connection. Real-time monitoring is carried out. When the humidity sensor 10 detects that the humidity exceeds the set value, the humidity sensor 10 will transmit the humidity signal to the central controller 6, which is divided into three situations: First, if the humidity sensor 10 inside the detection shell assembly at the right end of the device detects that the humidity exceeds the standard, the central controller 6 transmits the electromagnetic signal to the solenoid valve 2 on the No. 1 water supply pipe 3 of the pipeline network; second, if the humidity sensor 10 inside the detection shell assembly at the left end of the device detects that the humidity exceeds the standard, the central controller 6 transmits the electromagnetic signal to the solenoid valve 2 on the No. 2 water supply pipe 4 of the pipeline network; third, if the humidity sensors 10 inside the detection shell assemblies at the left and right ends of the device both detect that the humidity exceeds the standard, the central controller 6 transmits the electromagnetic signal to the solenoid valves 2 on the No. 1 water supply pipe 3 and the No. 2 water supply pipe 4 of the pipeline network; the water source is cut off for different leakage situations, thereby realizing emergency treatment of water seepage or leakage events;

[0015] A pressure sensor 5 and a flow meter 7 are also provided in the middle of the outer surface of the connecting pipe 1 from left to right, so that the water pressure and flow rate inside the connecting pipe 1 can be monitored by the pressure sensor 5 and the flow meter 7; when the pressure sensor 5 and the flow meter 7 detect that the pressure and flow rate of the water flow inside the connecting pipe 1 fluctuate greatly, it can be proved that a leakage event has occurred there. The pressure sensor 5 transmits the pressure signal to the central controller 6, and the flow meter 7 transmits the flow signal to the central controller 6. Since the pressure value or flow value received by the central controller 6 is abnormal, the central controller 6 transmits the electromagnetic signal to the electromagnetic valve 2. At this time, the electromagnetic valve 2 is closed, thereby cutting off the circulation of the water flow there, and the central controller 6 sends an alarm signal through the signal transmitter, and then transmits the alarm signal to the water supply center, so that manual emergency repairs of this section of the water supply pipeline can be carried out in time to avoid waste of water resources.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model overcomes the shortcomings of the prior art, and utilizes the humidity sensor in the detection shell assembly to monitor the humidity at the end of the connecting pipe and the connection of the water supply pipe in real time. When the humidity sensor detects that the humidity exceeds the set value, the humidity sensor will transmit the humidity signal to the central controller, which is divided into three situations: First, if the humidity sensor inside the detection shell assembly at the right end of the device detects that the humidity exceeds the standard, the central controller transmits the electromagnetic signal to the solenoid valve on the No. 1 water supply pipe of the pipeline network; second, if the humidity sensor inside the detection shell assembly at the left end of the device detects that the humidity exceeds the standard, the central controller transmits the electromagnetic signal to the solenoid valve on the No. 2 water supply pipe of the pipeline network; third, if the humidity sensors inside the detection shell assemblies at the left and right ends of the device both detect that the humidity exceeds the standard, the central controller transmits the electromagnetic signal to the solenoid valves on the No. 1 water supply pipe of the pipeline network and the No. 2 water supply pipe of the pipeline network; the water source is cut off for different leakage situations, thereby realizing emergency treatment of water seepage or leakage events.

[0018] 2. The utility model overcomes the shortcomings of the prior art, and adopts a pressure sensor and a flow meter to be arranged in sequence from left to right in the middle of the outer surface of the connecting pipe, so that the water pressure and flow inside the connecting pipe are monitored by the pressure sensor and the flow meter; when the pressure sensor and the flow meter detect that the pressure and flow of the water flow inside the connecting pipe fluctuate greatly, it can be proved that a leakage event has occurred there, and the pressure sensor transmits the pressure signal to the central controller, and the flow meter transmits the flow signal to the central controller. Since the pressure value or flow value received by the central controller is abnormal, the central controller transmits the electromagnetic signal to the solenoid valve. At this time, the two solenoid valves are closed, thereby cutting off the circulation of the water flow there, and the central controller sends an alarm signal through the signal transmitter, and then transmits the alarm signal to the water supply center, so that manual timely repair of this section of the water supply pipeline can be realized to avoid waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a main cross-sectional view of a water supply network leakage detection device based on the Internet of Things described in the utility model;

[0020] Figure 2 It is a front view of a detection shell component in a water supply pipe network leakage detection device based on the Internet of Things described in the utility model. DETAILED DESCRIPTION

[0021] Specific implementation method 1: Combination Figure 1 and Figure 2 The present embodiment is described as follows: a water supply network leakage detection device based on the Internet of Things described in the present embodiment comprises a connecting pipe 1, a solenoid valve 2, a pressure sensor 5, a central controller 6, a flow meter 7, a sealing ring 8, a flange 9 and a detection housing assembly;

[0022] A flange 9 is provided at each end of the connecting pipe 1, and the flange 9 at one end of the connecting pipe 1 is connected to the end of the No. 1 water supply pipe 3 of the pipe network, and the flange 9 at the other end of the connecting pipe 1 is connected to the end of the No. 2 water supply pipe 4 of the pipe network. A detection housing assembly is respectively sleeved at the connection between the flanges 9 at both ends of the connecting pipe 1 and the No. 1 water supply pipe 3 and the No. 2 water supply pipe 4 of the pipe network, and a sealing ring 8 is respectively embedded at both ends of the inner hole of the detection housing assembly. A pressure sensor 5, a central controller 6 and a flow meter 7 are arranged in sequence from left to right in the middle of the outer surface of the connecting pipe 1, and a solenoid valve 2 is respectively arranged on the No. 1 water supply pipe 3 of the pipe network and the No. 2 water supply pipe 4 of the pipe network;

[0023] In this specific embodiment, when in use, the device is installed between the No. 1 water supply pipe 3 of the pipeline network and the No. 2 water supply pipe 4 of the pipeline network, and is essentially connected to the pipeline network water supply pipe through the flanges 9 at both ends of the connecting pipe 1; then, the two groups of detection shell components are respectively installed at the connection between the connecting pipe 1 and the No. 1 water supply pipe 3 of the pipeline network and the No. 2 water supply pipe 4 of the pipeline network, and the detection shell upper part 11 and the detection shell lower part 12 are connected by bolt and nut assemblies, and a plurality of humidity sensors 10 are evenly arranged on the inner walls of the upper part 11 of the detection shell and the lower part 12 of the detection shell, and the sealing ring 8 is composed of the upper half of the sealing ring and the lower half of the sealing ring, and the semicircular grooves on the inner circular walls of the two end surfaces of the upper part 11 of the detection shell are respectively embedded with an upper half of the sealing ring, and the semicircular grooves on the inner circular walls of the two end surfaces of the lower part 12 of the detection shell are respectively embedded with a lower half of the sealing ring, so as to realize the use of the humidity sensor 10 to detect the end of the connecting pipe 1 and the water supply pipe connection. The humidity is monitored in real time. When the humidity sensor 10 detects that the humidity exceeds the set value, the humidity sensor 10 will transmit the humidity signal to the central controller 6, which is divided into three situations: First, if the humidity sensor 10 inside the detection shell assembly at the right end of the device detects that the humidity exceeds the standard, the central controller 6 transmits the electromagnetic signal to the solenoid valve 2 on the No. 1 water supply pipe 3 of the pipeline network; second, if the humidity sensor 10 inside the detection shell assembly at the left end of the device detects that the humidity exceeds the standard, the central controller 6 transmits the electromagnetic signal to the solenoid valve 2 on the No. 2 water supply pipe 4 of the pipeline network; third, if the humidity sensors 10 inside the detection shell assemblies at the left and right ends of the device both detect that the humidity exceeds the standard, the central controller 6 transmits the electromagnetic signal to the solenoid valves 2 on the No. 1 water supply pipe 3 and the No. 2 water supply pipe 4 of the pipeline network; the water source is cut off for different leakage situations, thereby realizing emergency treatment of water seepage or leakage incidents;

[0024] A pressure sensor 5 and a flow meter 7 are also provided in the middle of the outer surface of the connecting pipe 1 from left to right, so that the water pressure and flow rate inside the connecting pipe 1 can be monitored by the pressure sensor 5 and the flow meter 7; when the pressure sensor 5 and the flow meter 7 detect that the pressure and flow rate of the water flow inside the connecting pipe 1 fluctuate greatly, it can be proved that a leakage event has occurred there. The pressure sensor 5 transmits the pressure signal to the central controller 6, and the flow meter 7 transmits the flow signal to the central controller 6. Since the pressure value or flow value received by the central controller 6 is abnormal, the central controller 6 transmits the electromagnetic signal to the electromagnetic valve 2. At this time, the electromagnetic valve 2 is closed, thereby cutting off the circulation of the water flow there, and the central controller 6 sends an alarm signal through the signal transmitter, and then transmits the alarm signal to the water supply center, so that manual emergency repairs of this section of the water supply pipeline can be carried out in time to avoid waste of water resources.

[0025] Specific implementation method 2: Combination Figure 1 and Figure 2 The present embodiment is described as a further limitation of the detection device described in the first specific embodiment. The present embodiment is a water supply network leakage detection device based on the Internet of Things, wherein the detection shell assembly includes a humidity sensor 10, a detection shell upper portion 11 and a detection shell lower portion 12; the detection shell upper portion 11 and the detection shell lower portion 12 are connected by a bolt and nut assembly, and a plurality of humidity sensors 10 are evenly arranged on the inner walls of the detection shell upper portion 11 and the detection shell lower portion 12.

[0026] Specific implementation method three: Combination Figure 1 and Figure 2 The present embodiment is described. The present embodiment is a further limitation on the detection device described in the second specific embodiment. The present embodiment is a water supply network leakage detection device based on the Internet of Things. The pressure signal output end of the pressure sensor 5 is connected to the pressure signal input end of the central controller 6, the flow signal output end of the flow meter 7 is connected to the flow signal input end of the central controller 6, the humidity signal output end of the humidity sensor 10 is connected to the humidity signal input end of the central controller 6, the No. 1 electromagnetic signal output end of the central controller 6 is connected to one of the electromagnetic valves 2, and the No. 2 electromagnetic signal output end of the central controller 6 is connected to the other electromagnetic valve 2.

[0027] Specific implementation method four: Combination Figure 1 and Figure 2 To explain this embodiment, this embodiment is a further limitation of the detection device described in the specific embodiment 1. In this embodiment, a water supply network leakage detection device based on the Internet of Things is described, and the inner diameter of the connecting pipe 1 is equal to the inner diameter of the No. 1 water supply pipe 3 of the network.

[0028] Specific implementation method five: Combination Figure 1 and Figure 2 To explain this embodiment, this embodiment is a further limitation of the detection device described in the specific embodiment three. This embodiment describes a water supply network leakage detection device based on the Internet of Things. The outer surface of the connecting pipe 1 is provided with a signal transmitter, and the alarm signal of the central controller 6 is sent through the signal transmitter.

[0029] Specific implementation method six: Combination Figure 1 and Figure 2 This embodiment is described as a further limitation of the detection device described in the specific embodiment five. This embodiment describes a water supply network leakage detection device based on the Internet of Things, and the central controller 6 adopts a Siemens micro PLC controller.

[0030] Specific implementation method seven: Combination Figure 1 and Figure 2 To explain this embodiment, this embodiment is a further limitation of the detection device described in the specific embodiment 1. In this embodiment, a water supply network leakage detection device based on the Internet of Things is described, and semicircular grooves are processed along the circumferential direction on the inner circular walls of the two end surfaces of the upper part 11 of the detection shell and the lower part 12 of the detection shell.

[0031] Specific implementation method eight: Combination Figure 1 and Figure 2 This embodiment is described. This embodiment is a further limitation of the detection device described in the specific embodiment 7. In the water supply network leakage detection device based on the Internet of Things described in this embodiment, the sealing ring 8 is composed of an upper half of the sealing ring and a lower half of the sealing ring, and an upper half of the sealing ring is respectively embedded in the semicircular grooves on the inner circular walls of the two end surfaces of the upper part 11 of the detection shell, and a lower half of the sealing ring is respectively embedded in the semicircular grooves on the inner circular walls of the two end surfaces of the lower part 12 of the detection shell;

[0032] In this specific embodiment, such an arrangement ensures the sealing between the detection shell assembly and the tube body, so that the humidity sensor 10 can accurately monitor the humidity at the end of the connecting tube 1 and the connection point of the water supply pipe, thereby improving the accuracy of the detection.

[0033] How it works

[0034] When in use, the device is installed between the No. 1 water supply pipe 3 of the pipeline network and the No. 2 water supply pipe 4 of the pipeline network. In essence, it is connected to the water supply pipe of the pipeline network through the flanges 9 at both ends of the connecting pipe 1; then, the two groups of detection shell components are respectively installed at the connection between the connecting pipe 1 and the No. 1 water supply pipe 3 of the pipeline network and the No. 2 water supply pipe 4 of the pipeline network, and the detection shell upper part 11 and the detection shell lower part 12 are connected by bolt and nut assemblies, and a plurality of humidity sensors 10 are evenly arranged on the inner walls of the detection shell upper part 11 and the detection shell lower part 12, which are combined with the sealing ring 8 and are composed of the upper half of the sealing ring and the lower half of the sealing ring, and the semicircular grooves on the inner circular walls of the two end surfaces of the upper part 11 of the detection shell are respectively embedded with an upper half of the sealing ring, and the semicircular grooves on the inner circular walls of the two end surfaces of the lower part 12 of the detection shell are respectively embedded with a lower half of the sealing ring, so as to realize the use of the humidity sensor 10 to detect the humidity at the end of the connecting pipe 1 and the water supply pipe connection. Real-time monitoring, when the humidity sensor 10 detects that the humidity exceeds the set value, the humidity sensor 10 will transmit the humidity signal to the central controller 6, which is divided into three situations: First, if the humidity sensor 10 inside the detection shell assembly at the right end of the device detects that the humidity exceeds the standard, the central controller 6 transmits the electromagnetic signal to the solenoid valve 2 on the No. 1 water supply pipe 3 of the pipeline network; second, if the humidity sensor 10 inside the detection shell assembly at the left end of the device detects that the humidity exceeds the standard, the central controller 6 transmits the electromagnetic signal to the solenoid valve 2 on the No. 2 water supply pipe 4 of the pipeline network; third, if the humidity sensors 10 inside the detection shell assemblies at the left and right ends of the device both detect that the humidity exceeds the standard, the central controller 6 transmits the electromagnetic signal to the solenoid valves 2 on the No. 1 water supply pipe 3 and the No. 2 water supply pipe 4 of the pipeline network; realize the water source cut-off for different leakage situations, thereby realizing emergency treatment of water seepage or leakage incidents;

[0035] A pressure sensor 5 and a flow meter 7 are also provided in the middle of the outer surface of the connecting pipe 1 from left to right, so that the water pressure and flow rate inside the connecting pipe 1 can be monitored by the pressure sensor 5 and the flow meter 7; when the pressure sensor 5 and the flow meter 7 detect that the pressure and flow rate of the water flow inside the connecting pipe 1 fluctuate greatly, it can be proved that a leakage event has occurred there. The pressure sensor 5 transmits the pressure signal to the central controller 6, and the flow meter 7 transmits the flow signal to the central controller 6. Since the pressure value or flow value received by the central controller 6 is abnormal, the central controller 6 transmits the electromagnetic signal to the electromagnetic valve 2. At this time, the electromagnetic valve 2 is closed, thereby cutting off the circulation of the water flow there, and the central controller 6 sends an alarm signal through the signal transmitter, and then transmits the alarm signal to the water supply center, so that manual emergency repairs of this section of the water supply pipeline can be carried out in time to avoid waste of water resources.

Claims

1. A water supply network leakage detection device based on the Internet of Things, characterized in that: It comprises a connecting pipe (1), a solenoid valve (2), a pressure sensor (5), a central controller (6), a flow meter (7), a sealing ring (8), a flange (9) and a detection housing assembly; A flange (9) is provided at each end of the connecting pipe (1), and the flange (9) at one end of the connecting pipe (1) is connected to the end of a No. 1 water supply pipe (3) of the pipe network, and the flange (9) at the other end of the connecting pipe (1) is connected to the end of a No. 2 water supply pipe (4) of the pipe network. A detection housing assembly is sleeved at the connection between the flanges (9) at both ends of the connecting pipe (1) and the No. 1 water supply pipe (3) and the No. 2 water supply pipe (4) of the pipe network, and a sealing ring (8) is embedded at each end of the inner hole of the detection housing assembly. A pressure sensor (5), a central controller (6) and a flow meter (7) are provided in sequence from left to right on the middle of the outer surface of the connecting pipe (1), and a solenoid valve (2) is provided on the No. 1 water supply pipe (3) and the No. 2 water supply pipe (4) of the pipe network.

2. According to the Internet of Things-based water supply network leakage detection device according to claim 1, it is characterized in that: The detection housing assembly comprises a humidity sensor (10), an upper detection housing portion (11) and a lower detection housing portion (12); the upper detection housing portion (11) and the lower detection housing portion (12) are connected via a bolt and nut assembly, and a plurality of humidity sensors (10) are evenly arranged on the inner walls of the upper detection housing portion (11) and the lower detection housing portion (12).

3. The water supply network leakage detection device based on the Internet of Things according to claim 2 is characterized in that: The pressure signal output end of the pressure sensor (5) is connected to the pressure signal input end of the central controller (6), the flow signal output end of the flow meter (7) is connected to the flow signal input end of the central controller (6), the humidity signal output end of the humidity sensor (10) is connected to the humidity signal input end of the central controller (6), the No. 1 electromagnetic signal output end of the central controller (6) is connected to one of the electromagnetic valves (2), and the No. 2 electromagnetic signal output end of the central controller (6) is connected to the other electromagnetic valve (2).

4. The water supply network leakage detection device based on the Internet of Things according to claim 1 is characterized in that: The inner diameter of the connecting pipe (1) is equal to the inner diameter of the No. 1 water supply pipe (3) of the pipe network.

5. The water supply network leakage detection device based on the Internet of Things according to claim 3 is characterized in that: The outer surface of the connecting pipe (1) is provided with a signal transmitter, and the alarm signal of the central controller (6) is sent out through the signal transmitter.

6. The water supply network leakage detection device based on the Internet of Things according to claim 5 is characterized in that: The central controller (6) adopts a Siemens micro PLC controller.

7. The water supply network leakage detection device based on the Internet of Things according to claim 1 is characterized in that: Semicircular grooves are processed along the circumferential direction on the inner circular walls of the two end surfaces of the upper part (11) of the detection shell and the lower part (12) of the detection shell.

8. The water supply network leakage detection device based on the Internet of Things according to claim 7 is characterized in that: The sealing ring (8) is composed of an upper sealing ring and a lower sealing ring, and an upper sealing ring is respectively embedded in the semicircular grooves on the inner circular walls of the two end surfaces of the upper part (11) of the detection shell, and a lower sealing ring is respectively embedded in the semicircular grooves on the inner circular walls of the two end surfaces of the lower part (12) of the detection shell.

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