A device for quickly detecting leakage of a drain pipe

Abstract

The application discloses a kind of drain pipe leakage quick detection device, including working lever assembly, development component and probe assembly, the development component includes receiving shell, and development board is fixedly connected in the receiving shell, and transmitting antenna is fixedly connected on the receiving shell, and the transmitting antenna is electrically connected development board, and the probe assembly includes combination platform, and four threaded through holes are vertically and uniformly set on the combination platform.The application quickly reflects the change of water flow and water quality by ultrasonic, conductivity and flow rate data, has more rich dimension than traditional visual detection method, reduces the working time of personnel, also helps to master more water flow information, reduces labor intensity while improving the accuracy of problem troubleshooting, in addition, the application is easy to assemble, can change length, improves the portability of device, compared with part of traditional endoscopic method, does not need additional cable and working platform, reduces the cost of pipeline operation and maintenance inspection.

Description

Technical Field

[0001] This invention relates to the field of drainage pipe testing technology, specifically a rapid detection device for drainage pipe leakage. Background Technology

[0002] With the increasing urbanization in my country, the scale of urban drainage system construction is also expanding, placing increasing pressure on operation and management personnel. Due to historical issues, the actual drainage network still suffers from numerous problems such as aging, damage, and incorrect connections. These issues pollute the external environment and reduce the efficiency of the drainage system itself, further leading to problems such as poor drainage and excessively low influent concentrations at end-of-pipe sewage treatment facilities. However, the inherent complexity and concealment of underground drainage networks make the investigation and repair of these problems extremely difficult. The current methods used for troubleshooting pipeline problems mainly include the following technologies: 1. CCTV (Closed Circuit Television) method: This method uses a video imaging system that can move inside the pipe to indirectly visually inspect the pipe wall. It requires pre-sealing of the upstream of the drainage pipe and sometimes cleaning of the pipe wall. 2. Periscope method: Also known as the QV (Quick View) method, this method uses an adjustable telescopic rod with a zoom lens to achieve internal pipe inspection at the inspection well. It requires that the pipe not be too long and cannot assess the condition of the pipe below the water surface or at a distance. 3. Sonar method: This method uses a sonar scanning imaging system that can move inside the pipe to obtain geometric information of the pipe cross-section and interface, thereby detecting problems such as deformation and siltation inside the pipe. It requires a suitable water level in the drainage pipe and has high requirements for equipment operation and imaging analysis. These methods have the following drawbacks:

[0003] The disadvantages of this type of method and the equipment used are that the pipeline operation is judged by the inspectors directly visually inspecting the pipe wall, which is labor-intensive and highly dependent on the inspectors' experience, making it difficult to guarantee accuracy and time cost. In addition, the sonar method and the periscope method require additional cables and working platforms, which are complicated to set up and inconvenient to carry, resulting in high inspection costs.

[0004] Therefore, we propose a rapid detection device for drainage pipe leakage to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid detection device for drainage pipe leakage, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid detection device for drainage pipe leakage, comprising a working rod assembly, a development assembly, and a probe assembly, wherein the development assembly includes a housing, a development board is fixedly connected inside the housing, a receiving and transmitting antenna is fixedly attached to the housing, and the receiving and transmitting antenna is electrically connected to the development board;

[0007] The probe assembly includes a combined platform with four vertically and evenly spaced threaded through holes. Four threaded posts are threaded into each of the four threaded through holes. A second camera, an ultrasonic transducer, an impeller-type flow meter probe, and a conductivity probe are respectively fixed to the bottom surface of the four threaded posts. A first camera is fixed to the top of the threaded post where the second camera is fixed. A housing is fixed to one end of multiple wires, and the other end of each wire is fixed to the combined platform. One end of each wire is electrically connected to a development board, and the other end is electrically connected to the first camera, the second camera, the ultrasonic transducer, the impeller-type flow meter probe, and the conductivity probe.

[0008] Preferably, the working rod assembly includes a main rod body and multiple extension rod bodies. The main rod body has a first threaded hole at its bottom end. The extension rod body has a first stud fixed to its top end and a second threaded hole at its bottom end. The first stud on the top extension rod body is threaded to the first threaded hole, and the first stud on the lower extension rod body is threaded to the second threaded hole on the upper extension rod body. The top end of the main rod body has a handle fixed to it.

[0009] Preferably, the top of the main rod is engaged with two first buckles, and a mounting plate is fixedly connected to one side of the first buckles. A damping slot is vertically opened on the mounting plate, and two L-shaped mounting plates are fixedly connected to the side wall of the receiving shell. The L-shaped mounting plates are interference-fitted into the damping slots.

[0010] Preferably, a hinge assembly is fixedly connected to the center of the top surface of the combined platform. The hinge assembly includes an upper plate and a lower plate. Two hinge seats are fixedly connected to the top surface of the lower plate. A hinge shaft is fixedly connected between the top ends of the hinge seats. A hinge plate is fixedly connected to the bottom surface of the lower plate between the two hinge seats. The hinge plate is rotatably connected to the hinge shaft. A damping sleeve is sleeved on the outside of the hinge shaft.

[0011] Preferably, the top of the upper plate is fixedly connected to a second stud, which is threadedly connected to the second threaded hole of the extension rod at the bottom end, and the lower plate is fixedly connected to the center of the top surface of the combined platform.

[0012] Preferably, the upper plate is fixed to the outside of the second stud with a second waterproof and rust-proof sleeve, the second waterproof and rust-proof sleeve is fitted onto the bottom end of the lowest extension rod, the top of the extension rod is fixedly fitted with a first waterproof and rust-proof sleeve, the first waterproof and rust-proof sleeve on the uppermost extension rod is fitted onto the bottom end of the main rod, and the first waterproof and rust-proof sleeves on the remaining extension rods are fitted onto the bottom ends of the extension rods above them.

[0013] Preferably, multiple second buckles are snapped onto the main rod and multiple extension rods. A wiring harness plate is fixed to one side of the second buckle. Multiple wire grooves are opened on the side of the wiring harness plate away from the second buckle. The outer side of the wire is snapped into the wire groove. A power supply terminal groove is opened on one side of the housing. The power supply terminal groove is electrically connected to the development board. A power supply switch is fixed to one side of the housing. The transceiver antenna is electrically connected to the development board.

[0014] Preferably, two limiting screw holes are opened on both sides of the combined platform, and the two limiting screw holes are fixed to the U-shaped limiting frame by two limiting bolts. Two limiting through holes are opened horizontally at both ends of the U-shaped limiting frame, and the limiting bolts pass through the limiting through holes and are threaded to the limiting screw holes.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention uses ultrasound, conductivity, and flow velocity data to quickly reflect changes in water flow and quality, providing richer dimensions than traditional visual inspection methods. This reduces personnel working time, helps to grasp more water flow information, reduces labor intensity, and improves the accuracy of problem diagnosis. In addition, this invention is easy to assemble, can be modified in length, and improves the portability of the device. Compared with some traditional endoscopic methods, it does not require additional cables and working platforms, reducing the cost of pipeline operation and maintenance inspection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the first embodiment of the present invention;

[0018] Figure 2 These are schematic diagrams of the development component in the first and second embodiments of the present invention;

[0019] Figure 3 These are exploded structural diagrams of the probe assembly in the first and second embodiments of the present invention;

[0020] Figure 4 This is a schematic diagram of the exploded cross-section of the working rod assembly in the second embodiment of the present invention;

[0021] Figure 5 This is a cross-sectional view of the hinge assembly in the second embodiment of the present invention.

[0022] In the diagram: 1. Working rod assembly; 2. Development assembly; 3. Probe assembly; 4. Hinge assembly; 5. Wire; 11. Main rod body; 12. Extension rod body; 13. First threaded hole; 14. First stud; 15. Second threaded hole; 16. First waterproof and rustproof sleeve; 17. First snap-fit; 18. Mounting plate; 19. Damping slot; 110. Second snap-fit; 111. Wiring harness plate; 112. Wire channel; 113. Handle; 21. Housing; 22. Development board; 23. Transceiver antenna; 24. Power supply terminal slot; 25. Power supply 26. Switch; 37. L-shaped insert plate; 38. Combined platform; 39. Threaded through hole; 30. Threaded post; 31. First camera; 32. Second camera; 33. Ultrasonic transducer; 34. Impeller flow meter probe; 35. Conductivity probe; 36. U-shaped limit frame; 37. Limit screw hole; 38. Limit through hole; 39. Limit bolt; 40. Upper plate; 41. Lower plate; 42. Hinge seat; 43. Hinge shaft; 44. Damping sleeve; 45. Hinge plate; 46. Second stud; 47. Second waterproof and rustproof sleeve. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1:

[0025] Please see Figure 1-3 The present invention provides a technical solution: a rapid detection device for drainage pipe leakage, including a working rod assembly 1, a development assembly 2 and a probe assembly 3. The development assembly 2 includes a housing 21, a development board 22 fixedly connected inside the housing 21, and a receiving and transmitting antenna 23 fixed on the housing 21. The receiving and transmitting antenna 23 is electrically connected to the development board 22.

[0026] The probe assembly 3 includes a combined platform 31 with four vertically and evenly spaced threaded through holes 32. Four threaded posts 33 are threaded into each of the four threaded through holes 32. A second camera 35, an ultrasonic transducer 36, an impeller-type flowmeter probe 37, and a conductivity probe 38 are respectively fixed to the bottom surface of the four threaded posts 33. A first camera 34 is fixed to the top of the threaded post 33 where the second camera 35 is fixed. A housing 21 has multiple wires 5 fixed to one end, with the other end of each wire 5 fixed to the combined platform 31. One end of each wire 5 is electrically connected to a development board 22, and the other end is electrically connected to the first camera 34, the second camera 35, the ultrasonic transducer 36, and the impeller-type flowmeter probe 37. The flow meter probe 37 and conductivity probe 38 detect water flow velocity data through the impeller-type flow meter probe 37 and conductivity data through the conductivity probe 38. The ultrasonic transducer 36 is used to exchange and transmit sound signals at a certain frequency. The propagation of the sound signal in both directions will produce certain signal changes due to the Doppler effect. The echo of the ultrasonic waves can also provide feedback on some basic conditions inside the pipe. These data are transmitted to the development board 22. The analysis of the acoustic and electrical signals can quickly and accurately obtain various information about the water flow. When facing a large leakage flow, the transmission of ultrasonic waves may be interfered with due to physical reasons. If the propagation of the sound signal along the water flow is obstructed, it means that the sewage flow is not ideal. At this time, by comparing the data with the conductivity detection data, if there is a large difference, the leakage of the pipeline can be quickly determined.

[0027] Example 2:

[0028] Please see Figure 2-5 This is the second embodiment of the present invention, which is based on the previous embodiment. The working rod assembly 1 includes a main rod body 11 and multiple extension rod bodies 12. The bottom end of the main rod body 11 has a first threaded hole 13. The top end of the extension rod body 12 is fixed with a first stud 14, and the bottom end has a second threaded hole 15. The first stud 14 on the top extension rod body 12 is threaded to the first threaded hole 13, and the first stud 14 on the lower extension rod body 12 is threaded to the second threaded hole 15 on the upper extension rod body 12. The top end of the main rod body 11 is fixed with a handle 113. The main rod body 11 and the multiple extension rod bodies 12 are interconnected. The number of extension rod bodies 12 can be increased or decreased according to the depth of the inspection well. The assembly is convenient and it can be used for inspection wells of different depths.

[0029] Two first buckles 17 are snapped onto the top of the main rod 11. A mounting plate 18 is fixed to one side of the first buckle 17. A damping slot 19 is vertically opened on the mounting plate 18. Two L-shaped mounting plates 26 are fixed to the side wall of the housing 21. The L-shaped mounting plates 26 are interference-fitted into the damping slots 19, which facilitates the insertion and removal of the development component 2 and makes it easy to use.

[0030] A hinge assembly 4 is fixedly connected to the center of the top surface of the combined platform 31. The hinge assembly 4 includes an upper plate 41 and a lower plate 42. Two hinge seats 43 are fixedly connected to the top surface of the lower plate 42. A hinge shaft 44 is fixedly connected between the top ends of the hinge seats 43. A hinge plate 46 is fixedly connected to the bottom surface of the lower plate 42 between the two hinge seats 43. The hinge plate 46 is rotatably connected to the hinge shaft 44. A damping sleeve 45 is sleeved on the outside of the hinge shaft 44.

[0031] The top of the upper plate 41 is fixed with a second stud 47, which is threaded into the second threaded hole 15 of the extension rod 12 at the bottom. The lower plate 42 is fixed to the center of the top surface of the combined platform 31.

[0032] The upper plate 41 is fixed to the second waterproof and rustproof sleeve 48 outside the second stud 47. The second waterproof and rustproof sleeve 48 is sleeved on the bottom end of the lowest extension rod 12. The top outer side of the extension rod 12 is fixedly sleeved with the first waterproof and rustproof sleeve 16. The first waterproof and rustproof sleeve 16 on the uppermost extension rod 12 is sleeved on the bottom end of the main rod 11. The first waterproof and rustproof sleeve 16 on the remaining extension rods 12 is sleeved on the bottom end of the extension rod 12 above them.

[0033] Multiple second clips 110 are snapped onto the main rod 11 and multiple extension rods 12. A wiring harness plate 111 is fixed to one side of the second clip 110. Multiple wire grooves 112 are opened on the side of the wiring harness plate 111 away from the second clip 110. The outer side of the wire 5 is snapped into the wire groove 112. A power supply terminal groove 24 is opened on one side of the housing 21. The power supply terminal groove 24 is electrically connected to the development board 22. A power supply switch 25 is fixed to one side of the housing 21. The transceiver antenna 23 is electrically connected to the development board 22.

[0034] Two limiting screw holes 310 are opened on both sides of the combined platform 31. The two limiting screw holes 310 are fixed to the U-shaped limiting frame 39 by two limiting bolts 312. Two limiting through holes 311 are opened horizontally at both ends of the U-shaped limiting frame 39. The limiting bolts 312 pass through the limiting through holes 311 and are threaded to the limiting screw holes 310. When in use, the U-shaped limiting frame 39 is rotated to the bottom of the combined platform 31, and then the limiting bolts 312 are tightened to fix it, so as to avoid the probe directly contacting the bottom surface of the pipe and causing damage.

[0035] Example 3:

[0036] Please see Figure 1-5This is the third embodiment of the present invention, based on the above two embodiments. In use, two of these devices are required. First, they are assembled. Different numbers of extension rods 12 are selected according to the depth of the inspection well. Then, the main rod 11 is connected to multiple extension rods 12. The development component 2 and probe component 3 are installed on the working rod component 1. Then, power is connected to the power supply terminal slot 24, the power switch 25 is turned on, and the U-shaped limiting frame 39 is rotated below the combined platform 31. The limiting bolts 312 are then tightened to fix it. Next, the two probe components 3 of this invention are placed below the liquid surface of the pipe being tested in the inspection well. During placement, the U-shaped limiting frame 39 is placed against the pipe surface, ensuring that each probe is located at the centerline of the pipe. Simultaneously, the height and position of the two devices relative to the pipe are consistent. The backend system uses the transceiver antenna 23 to activate each probe and collect conductivity and flow velocity data. Simultaneously, two ultrasonic transducers 36 exchange and transmit sound signals at a certain frequency. The propagation of the sound signal in both directions will produce certain signal changes due to the Doppler effect. The echo of the ultrasound can also provide feedback on some basic conditions inside the pipe. The background system can quickly and accurately obtain various information about the water flow by analyzing the acoustic and electrical signals. When facing a large leakage flow, the transmission of ultrasound can be interfered with due to physical reasons. If the sound signal is blocked along the water flow, it means that the sewage flow is not ideal. At this time, by comparing the data with conductivity detection, if there is a large difference, the leakage of the pipe can be quickly determined. The principle on which this invention is based is as follows: The fluid in a normally operating drainage pipe can be approximated as a stable laminar flow in a circular pipe. When the drainage pipe is damaged or misconnected and seepage occurs, the flow state will turn into turbulent flow. The ultrasonic characteristics of laminar flow and turbulent flow, including bandwidth and morphology, are significantly different, which can be used to determine the flow state of the water in the pipe. In addition, the conductivity represents the concentration of electrolytes such as solute salts in the liquid, which can reflect the purity of the water to a certain extent. Since the seepage fluid is usually groundwater and the leaked fluid is usually rainwater, the conductivity of the seepage fluid is significantly different from that of the sewage in the sewage pipe. Therefore, the conductivity changes at the beginning and end of the pipe can help determine the occurrence of leakage. The flow meters at both ends can roughly estimate the average flow velocity of the fluid in the pipe, thereby estimating the flow time between the two ends. Combining the conductivity fluctuations with the pre-synchronized time series, the health status of the drainage pipe can be further determined. This invention uses ultrasound, conductivity, and flow velocity data to quickly reflect changes in water flow and water quality, providing richer dimensions than traditional visual inspection methods. It reduces personnel working time, helps to obtain more water flow information, reduces labor intensity, and improves the accuracy of problem diagnosis. In addition, this invention is easy to assemble, can be modified in length, and improves the portability of the device. Compared with some traditional endoscopic methods, it does not require additional cables and working platforms, reducing the cost of pipeline maintenance and inspection.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid detection device for drainage pipe leakage, comprising a working rod assembly (1), a development assembly (2), and a probe assembly (3), characterized in that: The development component (2) includes a housing (21), a development board (22) is fixed inside the housing (21), a transceiver antenna (23) is fixed on the housing (21), and the transceiver antenna (23) is electrically connected to the development board (22). The probe assembly (3) includes a combination platform (31), on which four threaded through holes (32) are vertically and evenly opened. Four threaded columns (33) are threadedly connected to the four threaded through holes (32). The bottom surfaces of the four threaded columns (33) are respectively fixed to a second camera (35), an ultrasonic transducer (36), an impeller flow meter probe (37), and a conductivity probe (38). The top of the threaded column (33) fixed to the second camera (35) is fixed to a first camera (34). The housing (21) is fixed to one end of multiple wires (5). The other end of the wires (5) is fixed to the combination platform (31). One end of the wires (5) is electrically connected to the development board (22), and the other end is electrically connected to the first camera (34), the second camera (35), the ultrasonic transducer (36), the impeller flow meter probe (37), and the conductivity probe (38). The working rod assembly (1) includes a main rod body (11) and multiple extension rod bodies (12). The main rod body (11) has a first threaded hole (13) at its bottom end. The extension rod body (12) has a first stud (14) fixed to its top end and a second threaded hole (15) at its bottom end. The first stud (14) on the extension rod body (12) at the top end is threaded to the first threaded hole (13). The first stud (14) on the extension rod body (12) at the bottom end is threaded to the second threaded hole (15) on the extension rod body (12) above it. The main rod body (11) has a handle (113) fixed to its top end. The hinge assembly (4) is fixedly connected to the center of the top surface of the combined platform (31). The hinge assembly (4) includes an upper plate (41) and a lower plate (42). Two hinge seats (43) are fixedly connected to the top surface of the lower plate (42). A hinge shaft (44) is fixedly connected between the top ends of the hinge seats (43). A hinge plate (46) is fixedly connected to the bottom surface of the lower plate (42) between the two hinge seats (43). The hinge plate (46) is rotatably connected to the hinge shaft (44). A damping sleeve (45) is sleeved on the outside of the hinge shaft (44). The top of the upper plate (41) is fixed with a second stud (47), which is threaded into the second threaded hole (15) of the extension rod (12) at the bottom end. The lower plate (42) is fixed to the center of the top surface of the combined platform (31). Multiple second buckles (110) are snapped onto the main rod (11) and multiple extension rods (12). A wire harness plate (111) is fixed on one side of the second buckle (110). Multiple wire grooves (112) are opened on the side of the wire harness plate (111) away from the second buckle (110). The outer side of the wire (5) is snapped into the wire groove (112). A power supply terminal groove (24) is opened on one side of the housing (21). The power supply terminal groove (24) is electrically connected to the development board (22). A power supply switch (25) is fixed on one side of the housing (21). The transceiver antenna (23) is electrically connected to the development board (22). The combined platform (31) has two limiting screw holes (310) on each side. The two limiting screw holes (310) are fixed to the U-shaped limiting frame (39) by two limiting bolts (312). The U-shaped limiting frame (39) has two horizontal limiting through holes (311) at each end. The limiting bolts (312) pass through the limiting through holes (311) and are threaded to the limiting screw holes (310).

2. The rapid detection device for drainage pipe leakage according to claim 1, characterized in that: The top of the main rod (11) is secured with two first buckles (17), and a mounting plate (18) is fixed to one side of the first buckle (17). A damping slot (19) is vertically opened on the mounting plate (18). Two mounting L-shaped inserts (26) are fixed to the side wall of the receiving shell (21). The mounting L-shaped inserts (26) are interference-fitted into the damping slots (19).

3. The rapid detection device for drainage pipe leakage according to claim 2, characterized in that: The upper plate (41) is fixed to the second waterproof and rustproof sleeve (48) on the outside of the second stud (47). The second waterproof and rustproof sleeve (48) is sleeved on the bottom end of the extension rod (12) located at the bottom. The first waterproof and rustproof sleeve (16) is fixedly sleeved on the outside of the top end of the extension rod (12). The first waterproof and rustproof sleeve (16) on the uppermost extension rod (12) is sleeved on the bottom end of the main rod (11). The first waterproof and rustproof sleeves (16) on the remaining extension rods (12) are sleeved on the bottom end of the extension rods (12) located above them.

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