Building interior wall leakage detection device

Abstract

This invention provides a device for detecting water leakage in the inner wall of a structure, comprising: a water leakage collection component, a water leakage collection solenoid valve, a water leakage identification component, a delivery pump, and a control component. The water leakage collection component is sequentially arranged along the tunnel extension direction on the tunnel sidewall. Each water leakage collection component has a water collection tank, and a guide wedge plate is fixedly installed on the top of the water collection tank near the tunnel sidewall. A partition is installed inside the water collection tank, dividing the interior of the water collection tank into water collection chambers. Each water collection chamber has a drain pipe connector at the bottom that communicates with its interior. In this invention, when leakage occurs in the tunnel sidewall corresponding to the water leakage collection component, the leakage water will trigger the water immersion sensor. The control module transmits the location information of the water leakage collection component corresponding to the connected water leakage collection solenoid valve and the leakage signal to the monitoring center through the communication module. The monitoring center can promptly detect the leakage and quickly identify the leakage area.

Description

Technical Field

[0001] This invention belongs to the field of tunnel structure monitoring technology, specifically relating to a device for detecting water leakage in the inner wall of a structure. Background Technology

[0002] Water leakage in tunnels is the most common form of tunnel defect. It can not only cause tunnel erosion and damage, endangering the durability of the tunnel structure, but also affect driving safety and the aesthetics of the tunnel.

[0003] Initially, tunnel leaks were detected through manual inspections, but this method was insufficient for timely detection.

[0004] Chinese invention patent document CN112304510B discloses a tunnel leakage detection device, which is installed on the inner wall of the tunnel. When the tunnel leaks, the water flows along the inner wall of the tunnel to the upper surface of the installation box and accumulates on the plastic film. The water-filled plastic film will fall down, and a needle will puncture the plastic film, allowing water to flow into the installation box. As a result, the color of the anhydrous copper sulfate in the installation box changes from white to blue. This device also needs to be inspected regularly, and leakage can only be detected during the inspection process. Even when leakage occurs, it cannot be detected in time.

[0005] Chinese utility model patent document with authorization announcement number CN216976435U discloses an automatic monitoring device for leakage in the sidewalls of urban tunnels. It uses an infrared thermal imaging camera to identify tunnel leakage and sends data to the background monitoring center when leakage occurs, which can detect leakage in time. However, the infrared thermal imaging camera is easily affected by the external ambient temperature and other heat sources, which may lead to missed detection or false detection.

[0006] Therefore, it is necessary to design a device for detecting water leakage in the inner wall of a structure that can detect leakage in a timely manner, is less affected by the external ambient temperature, and can quickly identify and locate the leakage area in the tunnel to solve the current technical problems. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a device for detecting water leakage in the inner wall of a structure that can promptly detect leaks, is less affected by external ambient temperature, and quickly identify and locate leakage areas in tunnels.

[0008] The technical solution of this invention is: a leakage detection device for the inner wall of a structure, comprising: a leakage water collection component, a leakage water collection solenoid valve, a leakage water identification component, a delivery pump, and a control component; the leakage water collection component is sequentially arranged along the tunnel extension direction on the tunnel sidewall, the leakage water collection component has a water collection tank, a guide wedge plate is fixedly installed on the top of the water collection tank near the tunnel sidewall, a partition is provided inside the water collection tank, the partition divides the inside of the water collection tank into water collection chambers, and a drain pipe joint communicating with the bottom of each water collection chamber is provided; the leakage water identification component has a detection function. The detection chamber has a mounting side plate fixedly installed on one side, an input pipe and an output pipe on the top, and a water immersion sensor installed at the bottom inside. The drain pipe joints are all connected to one end of a leakage water collection solenoid valve via pipelines, and the other end of the leakage water collection solenoid valve is connected to the input pipe. The delivery pump is connected to the output pipe via pipelines. The control component has a control module, which is connected to a communication module that communicates with the monitoring center. The water immersion sensor and the leakage water collection solenoid valve are both connected to the control module.

[0009] Furthermore, a semi-circular drainage groove is provided on one side of the water collection cavity, and the drainage pipe joint is centrally located at the bottom end of the drainage groove. An elastic valve stem corresponding to the top end of the drainage pipe joint is provided inside the drainage groove. A valve stem lifting mechanism is provided on the water collection groove. The valve stem lifting mechanism is used to push the elastic valve stem to move it upward or release the elastic valve stem to reset it so as to open or block the upper end of the drainage pipe joint.

[0010] Furthermore, the top of the drainage trough is provided with a drainage trough top plate, and a guide hole is provided on the drainage trough top plate; the elastic valve stem has a valve plate corresponding to the drainage pipe joint, a sealing gasket is provided at the bottom of the valve plate, a valve plate guide rod is fixedly provided at the top of the valve plate, the valve plate guide rod is slidably disposed inside the guide hole, and a valve plate spring is fitted on the outside of the valve plate guide rod between the valve plate and the drainage trough top plate; a toggle frame is fixedly provided at the top of the valve plate guide rod, and a toggle rod is provided at the top of the toggle frame; the valve stem lifting mechanism has a drive wheel corresponding to the toggle frame and a drive motor for driving the drive wheel to rotate, and a toggle block that cooperates with the toggle rod is provided on the outside of the drive wheel.

[0011] Furthermore, a drive shaft is driven to the output shaft of the drive motor, and an encoder is driven to the end of the drive shaft opposite to the drive motor. The drive wheels on the same water collection tank are all mounted on the outside of the drive shaft. The paddles on one side of all the drive wheels on the same drive shaft are evenly distributed in the circumferential direction of the drive shaft. Both ends of the drive shaft are rotatably mounted on one side of the water collection tank through drive shaft support plates.

[0012] Furthermore, an installation bracket corresponding to the flow guide wedge plate is provided above the water collection tank, and an elastic support mechanism is provided between the installation bracket and the flow guide wedge plate.

[0013] Furthermore, the mounting bracket has a crossbar, and fixed seats are fixedly provided at both ends of the crossbar. A support plane corresponding to the water collection cavity is fixedly provided on the flow guide wedge plate. The elastic support mechanism has a support spring disposed between the support plane and the crossbar.

[0014] Furthermore, the crossbar has a sliding hole corresponding to the support plane; the elastic support mechanism also has a support guide rod fixedly disposed on the support plane, the support guide rod is slidably disposed inside the sliding hole, a limit plate is fixedly disposed on one end of the support guide rod away from the support plane, and the support spring is sleeved on the outside of the support guide rod between the crossbar and the support plane.

[0015] Furthermore, a waterproof heating module is fixedly installed on one side of the water collection cavity, and one side of the waterproof heating module has a heat dissipation plate that is integral with it.

[0016] Furthermore, the bottom of the detection chamber is provided with a conical hopper connected thereto, the bottom end of the conical hopper is provided with a drain outlet, the bottom of the drain outlet is detachably fixed with a base plate, and the water immersion sensor is located on the top of the base plate.

[0017] Furthermore, the output end of the delivery pump is connected to a drain and exhaust pipe.

[0018] The beneficial effects of this invention are:

[0019] (1) In this invention, multiple leakage water collection components are sequentially arranged along the tunnel sidewall and connected to the leakage water identification component through a leakage water collection solenoid valve. The delivery pump is periodically started for a period of time to monitor the leakage water situation. During this period of time, the leakage water collection solenoid valves are sequentially turned on for a period of time and then turned off. When leakage occurs in the tunnel sidewall corresponding to the leakage water collection component, the leakage water will trigger the water immersion sensor. The control module transmits the location information of the leakage water collection component corresponding to the connected leakage water collection solenoid valve and the leakage signal to the monitoring center through the communication module. The monitoring center can detect the leakage in time and quickly identify the leakage area.

[0020] (2) The method of detecting water leakage by water immersion sensor is less affected by the external ambient temperature, thus ensuring the accuracy of monitoring;

[0021] (3) When leakage occurs, the leakage water collection solenoid valve remains on and the delivery pump continues to run, which can pump the leakage water in the leakage water collection component to the sewer or other designated places, so as to prevent the leakage water from overflowing in the leakage water collection component and flowing into the tunnel, thus limiting the scope of the leakage water's influence. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the water leakage detection device for the inner wall of a building in this invention.

[0023] Figure 2 This is one of the structural schematic diagrams of the leakage water collection component in this invention.

[0024] Figure 3 This is the second schematic diagram of the leakage water collection component in this invention.

[0025] Figure 4 for Figure 2 Cross-sectional view at point AA.

[0026] Figure 5 for Figure 3 A magnified view of a section at point B.

[0027] Figure 6 This is one of the structural schematic diagrams of the water leakage identification component in this invention.

[0028] Figure 7 This is the second schematic diagram of the structure of the water leakage identification component in this invention.

[0029] Figure 8 for Figure 7 Cross-sectional view at point CC.

[0030] Figure 9 This is a schematic diagram of the control component in this invention. Detailed Implementation

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the invention or its application or use in any way. The invention can be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the invention thorough and complete, and to fully express the scope of the invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0032] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, without excluding the possibility of encompassing other elements. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] like Figures 1 to 9 As shown, the leakage detection device for the inner wall of a structure includes: a leakage water collection component 1, a leakage water collection solenoid valve 3, a leakage water identification component 2, a delivery pump 4, and a control component 6. The leakage water collection component 1 is sequentially installed along the tunnel extension direction on the tunnel sidewall. The leakage water collection component 1 has a water collection tank 11. A guide wedge plate 111 is fixedly installed on the top of the water collection tank 11 near the tunnel sidewall. A partition plate 12 is installed inside the water collection tank 11. The partition plate 12 is welded to the inside of the water collection tank 11 to form an integral structure. The partition plate 12 divides the inside of the water collection tank 11 into water collection chambers 113. The bottom of each water collection chamber 113 is provided with a drain pipe joint 1 that communicates with its interior. 7; The leakage identification component 2 has a detection chamber 21, a mounting side plate 24 is fixedly installed on one side of the detection chamber 21, an input pipe 23 and an output pipe 22 are installed on the top of the detection chamber 21, and a water immersion sensor 26 is installed at the bottom of the detection chamber 21; the drain pipe joints 17 are all connected to one end of the leakage water collection solenoid valve 3 through the pipeline, the other end of the leakage water collection solenoid valve 3 is connected to the input pipe 23, and the delivery pump 4 is connected to the output pipe 22 through the pipeline; the control component 6 has a control module 61, a communication module 62 connected to the monitoring center 7, and the water immersion sensor 26 and the leakage water collection solenoid valve 3 are all connected to the control module 61.

[0034] In the above embodiment, multiple leakage water collection components 1 arranged sequentially along the tunnel sidewall are connected to the input pipe 23 of the leakage water identification component 2 through a leakage water collection solenoid valve 3. The leakage water collection solenoid valve 3 is kept in the closed state, and the delivery pump 4 is periodically started for a period of time to monitor the leakage water situation. During this period of time, the leakage water collection solenoid valve 3 is sequentially turned on for a period of time and then turned off, keeping one leakage water collection solenoid valve 3 in the on state each time. When leakage occurs in the tunnel sidewall corresponding to the leakage water collection component 1, the leakage water will flow into the water collection chamber 113 inside the water collection tank 11. When the leakage water collection solenoid valve 3 corresponding to the water collection chamber 113 is turned on, the leakage water will be pumped by the delivery pump 4 to the inside of the detection chamber 21. The leakage water accumulates at the bottom of the detection chamber 21, and the leakage water submerges the water immersion sensor 26, thus immersing the water. When sensor 26 is triggered, the control module 61 receives the trigger signal from the water immersion sensor 26 and determines that leakage has occurred in the tunnel. At this time, the location information of the leakage water acquisition component 1 corresponding to the connected leakage water acquisition solenoid valve 3 and the alarm signal of leakage are transmitted to the monitoring center 7 through the communication module 62. The monitoring center 7 can detect the leakage in time. The method of detecting leakage water by using the water immersion sensor 26 to determine whether leakage has occurred inside the tunnel is less affected by the external ambient temperature, ensuring the accuracy of monitoring. When leakage occurs, the leakage water acquisition solenoid valve 3 remains connected, and the delivery pump 4 continues to run, which can continuously pump the leakage water in the leakage water acquisition component 1 into the detection chamber 21, and then pump it from the detection chamber 21 to the sewer or other designated places for discharge or collection, to prevent the leakage water from overflowing from the leakage water acquisition component 1 and flowing into the tunnel, thus limiting the impact range of the leakage water.

[0035] In the above embodiment, the control module 61 obtains the location information of the leakage water collection component 1 in the leakage area by sequentially numbering multiple leakage water collection components 1 during installation, and associating the leakage water collection solenoid valve 3 connected to the leakage water collection component 1 with the number. Thus, when a leakage water collection solenoid valve 3 is turned on, the water immersion sensor 26 is triggered, and the corresponding leakage water collection component 1 number can be quickly obtained according to the leakage water collection solenoid valve 3, and the leakage area can be quickly located according to the corresponding leakage water collection component 1 number.

[0036] In the above embodiment, the control module 61 is a PLC controller, the water immersion sensor 26 is connected to the switch input terminal of the control module 61, and the leakage water collection solenoid valve 3 is connected to the switch output terminal of the control module 61.

[0037] In some embodiments, such as Figures 2 to 4As shown, a semi-circular drainage trough 14 is provided on one side of the water collection chamber 113. The drain pipe joint 17 is centrally located at the bottom end of the drainage trough 14. An elastic valve stem 18 corresponding to the top end of the drain pipe joint 17 is provided inside the drainage trough 14. A valve stem lifting mechanism 19 is provided on the water collection trough 11. The valve stem lifting mechanism 19 is used to push the elastic valve stem 18 to move it upward or release the elastic valve stem 18 to reset it, so as to open or block the upper end of the drain pipe joint 17. By sequentially lifting the elastic valve stem 18 in the water collection chamber 113 inside the water collection trough 11 through the valve stem lifting mechanism 19 and holding it for a period of time before lowering it, multiple water collection chambers 113 inside the water collection trough 11 can be sequentially connected to the corresponding leakage water collection solenoid valve 3. When leakage occurs above the water collection trough 11, the leakage water will flow into the interior of the corresponding water collection chamber 113. When the water collection chamber 113 is connected to the leakage water collection solenoid valve 3, the leakage water inside the water collection chamber 113 will be pumped to the leakage identification component 2, triggering the water immersion sensor 26 to identify the leakage. The multiple water collection chambers 113 inside the water collection tank 11 are numbered respectively, and the position data of the valve stem lifting mechanism 19 corresponding to the opening of different numbered water collection chambers 113 is associated with the number of the water collection chamber 113. By collecting the position data of the valve stem lifting mechanism 19 when leakage occurs, the specific location of the water collection chamber 113 can be further located, which facilitates more accurate location of the leakage area. The elastic valve stem 18 is raised and held for a period of time. This period of time should be reserved enough for the delivery pump 4 to pump the water accumulated inside the water collection chamber 113 to the leakage identification component 2, and only one set of elastic valve stems 18 is raised at a time.

[0038] In some embodiments, such as Figures 2 to 5As shown, a top plate 141 is provided at the top of the drainage trough 14, and a guide hole 142 is provided on the top plate 141; the elastic valve stem 18 has a valve plate 181 corresponding to the drain pipe joint 17, a sealing gasket 182 is provided at the bottom of the valve plate 181, and a valve plate guide rod 183 is fixedly provided at the top of the valve plate 181. The valve plate guide rod 183 is slidably disposed inside the guide hole 142, and the valve plate guide rod 183 is positioned between the valve plate 181 and the top plate 141 of the drainage trough. A valve plate spring 184 is fitted on the outer side; a toggle frame 185 is fixedly installed at the top of the valve plate guide rod 183, and a toggle lever 186 is installed at the top of the toggle frame 185; the valve stem lifting mechanism 19 has a drive wheel 194 corresponding to the toggle frame 185 and a drive motor 192 that drives the drive wheel 194 to rotate; a toggle block 195 that cooperates with the toggle lever 186 is installed on the outer side of the drive wheel 194; the drive motor 192 drives the drive wheel 194 to rotate, and the drive wheel 194 is fixedly installed at the top of the valve plate guide rod 183; the valve stem lifting mechanism 19 has a drive wheel 194 corresponding to the toggle frame 185 and a drive motor 192 that drives the drive wheel 194 to rotate. 94 drives the toggle block 195 to rotate. After the toggle block 195 rotates to below the toggle rod 186, the toggle block 195 continues to rotate, pushing the toggle rod 186 upward. The toggle rod 186 drives the valve plate guide rod 183 to move upward, compressing the valve plate spring 184. The valve plate guide rod 183 drives the valve plate 181 and the sealing gasket 182 to move upward, opening the drain pipe joint 17. By controlling the rotation angle of the drive wheel 194, when the toggle rod 186 is lifted to a certain height by the toggle block 195, the drive motor 192 stops, thus keeping the drain pipe joint 17 open. As the drive wheel 194 continues to rotate, the toggle block 195 separates from the toggle rod 186, the valve plate spring 184 resets, and the sealing gasket 182 closes the drain pipe joint 17. By adjusting the position of the toggle block 195 on different drive wheels 194, the drain pipe joints 17 of different water collection chambers 113 can be opened sequentially during the synchronous rotation of the drive wheels 194.

[0039] As one specific implementation of the drive motor 192, the drive motor 192 is a servo geared motor or a stepper geared motor, which can output a large torque and has high angle control accuracy. It can drive the drive wheel 194 to rotate and move the lever 186 through the toggle block 195 on the drive wheel 194.

[0040] In some embodiments, such as Figure 2 and 5 As shown, a drive shaft 191 is driven and connected to the output shaft of the drive motor 192. An encoder 193 is driven and connected to the end of the drive shaft 191 facing away from the drive motor 192. The drive wheels 194 on the same water collection tank 11 are all mounted on the outside of the drive shaft 191. The levers 195 on one side of all the drive wheels 194 on the same drive shaft 191 are evenly distributed in the circumferential direction of the drive shaft 191. Both ends of the drive shaft 191 are rotatably mounted on one side of the water collection tank 11 through the drive shaft support plate 196. As a more specific embodiment, such as Figure 3As shown, four partitions 12 are evenly arranged inside the water collection tank 11, which divide the inside of the water collection tank 11 into five water collection chambers 113. Five drive wheels 194 are arranged above the five water collection chambers 113. Five levers 195 on one side of the five drive wheels 194 are evenly distributed in the circumference of the drive shaft 191. After one lever 195 separates from the corresponding lever 186, another lever 195 is about to contact the corresponding lever 186. This allows the drain pipe joints 17 in different water collection chambers 113 to open alternately during the rotation of the drive shaft 191.

[0041] In some embodiments, such as Figure 3 and 4 As shown, an installation bracket 15 corresponding to the guide wedge plate 111 is provided above the water collection tank 11. An elastic support mechanism 16 is provided between the installation bracket 15 and the guide wedge plate 111. The two ends of the installation bracket 15 are connected and fixed to the tunnel sidewall, so that the seepage water collection component 1 is fixed to the tunnel sidewall. The elastic support mechanism 16 applies elastic force to the guide wedge plate 111, which can keep the guide wedge plate 111 in close contact with the tunnel sidewall, so that the seepage water can flow smoothly along the tunnel sidewall into the guide wedge plate 111, and then be guided by the guide wedge plate 111 to the inside of the water collection tank 11.

[0042] In some embodiments, the mounting bracket 15 has a crossbar 151, with fixed seats 152 fixedly provided at both ends of the crossbar 151. A support plane 112 corresponding to the middle of the water collection chamber 113 is fixedly provided on the flow guide wedge plate 111. The elastic support mechanism 16 has a support spring 162 provided between the support plane 112 and the crossbar 151. The support spring 162 forms an elastic support between the crossbar 151 and the support plane 112. Both ends of the crossbar 151 are fixed to the tunnel sidewall by the fixed seats 152. The crossbar 151 provides fixed support to one end of the support spring 162. The other end of the support spring 162 applies elastic force to the flow guide wedge plate 111, so that the flow guide wedge plate 111 is kept in close contact with the tunnel sidewall.

[0043] In some embodiments, in order to improve the connection stability between the flow guide wedge plate 111 and the crossbar 151, a sliding hole 153 corresponding to the support plane 112 is provided on the crossbar 151; the elastic support mechanism 16 also has a support guide rod 161 fixedly disposed on the support plane 112, the support guide rod 161 is slidably disposed inside the sliding hole 153, a limit plate 163 is fixedly disposed on one end of the support guide rod 161 away from the support plane 112, and a support spring 162 is sleeved on the outside of the support guide rod 161 between the crossbar 151 and the support plane 112. The flow guide wedge plate 111 is slidably connected to the sliding hole 153 through the support guide rod 161, thereby improving the connection stability between the flow guide wedge plate 111 and the crossbar 151.

[0044] In some embodiments, a waterproof heating module 13 is fixedly installed on one side of the water collection cavity 113. The waterproof heating module 13 has a heat dissipation plate 131 integrated with it on one side. After a water leakage has occurred and monitoring is completed, a certain amount of moisture will remain in the water collection cavity 113, the detection chamber 21 and the pipeline. By activating the waterproof heating module 13, it is heated to a higher temperature. The delivery pump 4 drives the external air to enter the detection chamber 21 through the pipeline after being heated by the waterproof heating module 13, and outputs it from the output end of the delivery pump 4. This generates a high-temperature airflow in the water collection cavity 113, the detection chamber 21 and the pipeline. By increasing the temperature and increasing the surface airflow speed, the drying of the residual moisture is accelerated. After the residual moisture has dried, the leakage of the tunnel sidewall can be monitored again.

[0045] In some embodiments, the bottom of the detection chamber 21 is provided with a conical hopper 27 connected thereto. The bottom end of the conical hopper 27 is provided with a drain outlet 28. The bottom of the drain outlet 28 is detachably fixed with a base plate 25. The water immersion sensor 26 is located on the top of the base plate 25. After a leak detection is completed, there will be a certain amount of water inside the detection chamber 21. Opening the base plate 25 can drain the water inside the detection chamber 21, and at the same time, it can facilitate the cleaning, reset or maintenance and replacement of the water immersion sensor 26. Specifically, the water immersion sensor 26 is fixed to the base plate 25 by bolts. The base plate 25 is fixed to the bottom end of the conical hopper 27 by bolts. A sealing ring is provided between the base plate 25 and the bottom end of the conical hopper 27.

[0046] In some embodiments, the output end of the delivery pump 4 is connected to a drain vent pipe 5, which can be connected to a sewer to receive leaking water.

[0047] The various embodiments of the present invention have now been described in detail. To avoid obscuring the concept of the invention, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solutions disclosed herein based on the above description.

[0048] The embodiments described above only illustrate some implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A device for detecting water leakage in the inner wall of a structure, characterized in that, include: Leakage detection component, leakage detection solenoid valve, leakage identification component, delivery pump and control component; The seepage water collection components are sequentially installed on the tunnel sidewalls along the tunnel extension direction. Each seepage water collection component has a water collection tank. A guide wedge plate is fixedly installed on the top of the water collection tank near the tunnel sidewall. A partition is installed inside the water collection tank, which divides the inside of the water collection tank into water collection chambers. Each water collection chamber has a drain pipe joint at the bottom that communicates with its interior. The water leakage identification component has a detection chamber, a mounting side plate is fixedly installed on one side of the detection chamber, an input pipe and an output pipe are installed on the top of the detection chamber, and a water immersion sensor is installed at the bottom of the inner part of the detection chamber. The drain pipe joints are all connected to one end of the leakage water collection solenoid valve through pipelines, the other end of the leakage water collection solenoid valve is connected to the input pipe, and the delivery pump is connected to the output pipe through pipelines. The control component has a control module, and the control module is connected to a communication module that communicates with the monitoring center. The water immersion sensor and the leakage water acquisition solenoid valve are both connected to the control module. A semi-circular drainage groove is provided on one side of the water collection chamber. The drainage pipe joint is centrally located at the bottom end of the drainage groove. An elastic valve stem corresponding to the top end of the drainage pipe joint is provided inside the drainage groove. A valve stem lifting mechanism is provided on the water collection groove. The valve stem lifting mechanism is used to push the elastic valve stem to move it upward or release the elastic valve stem to reset it so as to open or block the upper end of the drainage pipe joint. The top of the drainage trough is provided with a drainage trough top plate, and the drainage trough top plate is provided with guide holes; The elastic valve stem has a valve plate corresponding to the drain pipe joint. A sealing gasket is provided at the bottom of the valve plate, and a valve plate guide rod is fixedly provided at the top of the valve plate. The valve plate guide rod is slidably disposed inside the guide hole. A valve plate spring is fitted on the outside of the valve plate guide rod between the valve plate and the top plate of the drain trough. A toggle frame is fixedly provided at the top of the valve plate guide rod, and a toggle rod is provided at the top of the toggle frame; The valve stem lifting mechanism has a drive wheel corresponding to the toggle frame and a drive motor that drives the drive wheel to rotate. A toggle block that cooperates with the toggle lever is provided on the outer side of the drive wheel.

2. The device for detecting water leakage in the inner wall of a structure according to claim 1, characterized in that: A drive shaft is driven to the output shaft of the drive motor. An encoder is driven to the end of the drive shaft opposite to the drive motor. The drive wheels on the same water collection tank are all mounted on the outside of the drive shaft. The paddles on one side of all the drive wheels on the same drive shaft are evenly distributed in the circumferential direction of the drive shaft. Both ends of the drive shaft are rotatably mounted on one side of the water collection tank through drive shaft support plates.

3. The device for detecting water leakage in the inner wall of a structure according to claim 1, characterized in that: Above the water collection tank is a mounting bracket corresponding to the flow guide wedge plate, and an elastic support mechanism is provided between the mounting bracket and the flow guide wedge plate.

4. The device for detecting water leakage in the inner wall of a structure according to claim 3, characterized in that: The mounting bracket has a crossbar, and fixed seats are fixedly provided at both ends of the crossbar. A support plane corresponding to the water collection cavity is fixedly provided on the flow guide wedge plate. The elastic support mechanism has a support spring provided between the support plane and the crossbar.

5. The device for detecting water leakage in the inner wall of a structure according to claim 4, characterized in that: The crossbar has a sliding hole corresponding to the support plane; the elastic support mechanism also has a support guide rod fixedly disposed on the support plane, the support guide rod is slidably disposed inside the sliding hole, a limit plate is fixedly disposed on one end of the support guide rod away from the support plane, and the support spring is sleeved on the outside of the support guide rod between the crossbar and the support plane.

6. The device for detecting water leakage in the inner wall of a structure according to claim 1, characterized in that: A waterproof heating module is fixedly installed on one side of the water collection cavity, and a heat dissipation plate with an integral structure is provided on one side of the waterproof heating module.

7. The device for detecting water leakage in the inner wall of a structure according to claim 1, characterized in that: The bottom of the detection chamber is provided with a conical hopper connected thereto. The bottom end of the conical hopper is provided with a drain outlet. The bottom of the drain outlet is detachably and fixedly provided with a base plate. The water immersion sensor is located on the top of the base plate.

8. The device for detecting water leakage in the inner wall of a structure according to claim 1, characterized in that: The output end of the delivery pump is connected to a drain and exhaust pipe.

Images