A municipal pipeline precise leak point positioning and detecting equipment

Abstract

The application relates to the field of municipal pipeline detection, and discloses a municipal pipeline precise leak point positioning and detection equipment, which comprises a base, a municipal pipeline, a pipeline clamping mechanism and a pipeline detection mechanism arranged on the base. The pipeline clamping mechanism is used for clamping and fixing the municipal pipeline, and the pipeline detection mechanism is used for leak point positioning and detection of the municipal pipeline. The pipeline detection mechanism comprises a cylindrical seat, a semicircular pull ring, a guide support assembly, a leak point detection assembly one, a leak point detection assembly two, a marking assembly and a traction assembly. The cylindrical seat is located in the municipal pipeline. The application has the following advantages and effects: the municipal pipeline can be comprehensively and rapidly subjected to leak point positioning and detection, and the leak point positioning and detection can be carried out without missing detection. Moreover, the leak point positions on the municipal pipeline can be marked, so that subsequent maintenance and reprocessing are facilitated. The application has the advantages of convenient operation, time and labor saving and work efficiency improvement.

Description

Technical Field

[0001] This invention relates to the field of municipal pipeline inspection technology, and in particular to a precise leak detection device for municipal pipelines. Background Technology

[0002] Municipal pipelines are an important component of municipal engineering and a vital basic infrastructure for cities. Municipal pipeline projects include water supply pipelines, drainage pipelines, gas pipelines, heating pipelines, and more. Nowadays, before leaving the factory, to ensure the quality of manufactured municipal pipelines, workers typically use leak detection equipment to inspect the pipe walls for leaks. This allows for the timely detection of leaks and prevents greater economic losses during the subsequent use of the municipal pipelines.

[0003] Most existing leak detection equipment consists of ultrasonic flaw detectors. When detecting leaks in municipal pipelines, workers typically hold the probe of the ultrasonic flaw detector by hand. Since municipal pipelines are cylindrical, the probe needs to be moved in a straight line and in a circle to check for leaks. This process is cumbersome, labor-intensive, time-consuming, and inefficient. Furthermore, during manual testing, it is difficult to control the movement trajectory of the probe to ensure it covers the pipeline evenly and comprehensively, which can easily lead to missed leaks. Therefore, we propose a precise leak detection device for municipal pipelines to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to provide a precise leak detection device for municipal pipelines. This device can comprehensively and quickly locate and detect leaks in municipal pipelines without missing any. It can also mark the locations of detected leaks on the municipal pipelines to facilitate subsequent repairs and rework. It is convenient to operate, saves time and effort, and improves work efficiency.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a municipal pipeline precise leak location and detection device, including a base and a municipal pipeline, a pipeline clamping mechanism and a pipeline detection mechanism disposed on the base. The pipeline clamping mechanism is used to clamp and fix the municipal pipeline. The pipeline detection mechanism is used to locate and detect leaks in the municipal pipeline. The pipeline detection mechanism includes a cylindrical seat, a semi-circular pull ring, a guide support assembly, a leak detection assembly one, a leak detection assembly two, a marking assembly and a traction assembly. The cylindrical seat is located inside the municipal pipeline. The semi-circular pull ring is fixedly connected to the left outer wall of the cylindrical seat. The guide support assembly, leak detection assembly one and leak detection assembly two are all disposed on the cylindrical seat. The guide support assembly is used to guide the cylindrical seat to slide horizontally and linearly inside the municipal pipeline. Leak detection assembly one is used to initially detect the leak location on the municipal pipeline. Leak detection assembly two is used to accurately detect the leak location on the municipal pipeline. The marking assembly is disposed on leak detection assembly two and is used to mark the leak location on the municipal pipeline. The traction assembly is disposed on the top of the base and located on the left side of the municipal pipeline. The traction assembly is used to pull the cylindrical seat to move horizontally and linearly inside the municipal pipeline.

[0006] A further configuration of the present invention is as follows: the pipe clamping mechanism includes a pad, an arc-shaped support plate, a column, a horizontal plate, a hydraulic cylinder, and an arc-shaped pressure plate. The pad is fixedly installed on the top of the base, the arc-shaped support plate is fixedly installed on the top of the pad, the municipal pipe is placed on the arc-shaped support plate, the column is fixedly installed on the top of the base, the horizontal plate is fixedly installed on the top of the column, the hydraulic cylinder is fixedly installed on the bottom of the horizontal plate, and the arc-shaped pressure plate is fixedly installed on the output shaft end of the hydraulic cylinder. The arc-shaped pressure plate is in contact with the top surface of the municipal pipe.

[0007] A further feature of the present invention is that the number of the guide support components is set to two sets, and the two sets of guide support components are respectively distributed on the left and right sides of the cylindrical base. The guide support components include four first electric telescopic rods and four rollers. Four grooves are provided on the outer wall of the cylindrical base. The four grooves are distributed in a ring at equal intervals. The four first electric telescopic rods are respectively fixedly installed in the corresponding grooves. The output shaft ends of the four first electric telescopic rods extend to the outside of the corresponding grooves. The four rollers are respectively rotatably installed on the output shaft ends of the corresponding first electric telescopic rods. All four rollers are in rolling contact with the inner wall of the municipal pipeline.

[0008] A further configuration of the present invention is as follows: the leak detection component includes two annular inflatable bladders, an air pump, an air intake pipe, an air outlet pipe, a four-way pipe, two first inflation pipes, two first solenoid valves, a second inflation pipe, a second solenoid valve, and an air pressure detector. The two annular inflatable bladders are fixedly fitted onto the outer wall of a cylindrical base. An installation cavity is provided inside the cylindrical base. The air pump is fixedly installed on the bottom inner wall of the installation cavity. One end of the air intake pipe is fixedly connected to the intake end of the air pump, and the end of the air intake pipe away from the air pump extends outside the cylindrical base. One end of the air outlet pipe is fixedly connected to the discharge end of the air pump. The air inlet end of the four-way pipe is fixedly connected to the end of the air outlet pipe away from the air pump. One end of each of the two first inflation pipes is... The two first inflation tubes are fixedly connected to the corresponding annular airbags. The two first inflation tubes are respectively connected to the interior of the corresponding annular airbags. The ends of the two first inflation tubes away from the corresponding annular airbags extend into the mounting cavity and are fixedly connected to the left and right air outlets of the four-way tube, respectively. The two first solenoid valves are fixedly installed on the corresponding first inflation tubes. The bottom end of the second inflation tube is fixedly connected to the top air outlet of the four-way tube. The top end of the second inflation tube extends to the outside of the cylindrical base and is located between the two annular airbags. The second solenoid valve is fixedly installed on the second inflation tube. The air pressure detector is fixedly installed on the outer wall of the cylindrical base and is located between the two annular airbags.

[0009] A further feature of the present invention is that a first camera is fixedly installed on the outer wall of the cylindrical base, located between the two annular inflatable bladders, and the first camera is located directly to the right of the air pressure detector.

[0010] A further feature of the present invention is that: a first one-way valve is fixedly installed inside the inhalation pipe, a second one-way valve is fixedly installed inside the outlet pipe, an outlet pipe is fixedly connected to each of the two first inflation pipes, the ends of the two outlet pipes away from the corresponding first inflation pipes extend to the outside of the cylindrical base, and an electromagnetic outlet valve is fixedly installed on each of the two outlet pipes.

[0011] A further configuration of the present invention is as follows: the second leak detection component includes an ultrasonic flaw detector, an annular electric guide rail, an electric slide block, a second electric telescopic rod, a support plate, and a detection probe. The ultrasonic flaw detector is fixedly installed in the mounting cavity. The annular electric guide rail is fixedly fitted onto the outer wall of the cylindrical base and located between the two annular inflatable bladders. The electric slide block is slidably installed on the annular electric guide rail. The second electric telescopic rod is fixedly installed on the top of the electric slide block. The support plate is fixedly installed on the output shaft end of the second electric telescopic rod. The detection probe is fixedly installed on the top of the support plate and is electrically connected to the ultrasonic flaw detector.

[0012] A further configuration of the present invention is as follows: the marking assembly includes a third electric telescopic rod and a bar stamp, the third electric telescopic rod is fixedly installed on the top of the support plate and located in front of the detection probe, the bar stamp is fixedly installed on the output shaft end of the third electric telescopic rod, and the top surface of the bar stamp is coated with ink.

[0013] A further provision of the present invention is that a second camera is fixedly installed on the left inner wall of the mounting cavity, the second camera being located directly to the left of the ultrasonic flaw detector, and a storage battery is fixedly installed inside the mounting cavity.

[0014] A further configuration of the present invention is as follows: the traction assembly includes a winch and a traction rope. The winch is fixedly installed on the top of the base and located on the left side of the municipal pipeline. A rope drum is fixedly installed on the output shaft end of the winch. The traction rope is wound on the rope drum. One end of the traction rope away from the rope drum extends into the municipal pipeline and is tied to a semi-circular pull ring.

[0015] The beneficial effects of this invention are:

[0016] 1. This invention utilizes a pipe clamping mechanism consisting of a pad, an arc-shaped support plate, a column, a horizontal plate, a hydraulic cylinder, and an arc-shaped pressure plate to securely clamp and fix municipal pipelines. During leak detection operations, the municipal pipelines will not shift, thus ensuring successful detection.

[0017] 2. The present invention utilizes a guide support assembly consisting of four first electric telescopic rods and four rollers, and with the combined action of the two sets of guide support assemblies, it can stably support and position the cylindrical seat inside the municipal pipeline, thereby guiding the cylindrical seat to slide horizontally and linearly within the municipal pipeline.

[0018] 3. This invention utilizes a traction assembly consisting of a winch and a traction rope. By gradually winding up the traction rope using the winch, the cylindrical base can be pulled to move smoothly in a straight line inside the municipal pipeline.

[0019] 4. This invention utilizes a leak detection component consisting of two annular inflatable bladders, an air pump, an air intake pipe, an air outlet pipe, a four-way pipe, two first inflation pipes, two first solenoid valves, a second inflation pipe, a second solenoid valve, and an air pressure detector. This component enables the preliminary detection and screening of leaks in municipal pipelines, eliminating the need for a thorough inspection of each pipeline wall, thus saving time and improving work efficiency.

[0020] 5. This invention utilizes a leak detection component two, consisting of an ultrasonic flaw detector, a ring-shaped electric guide rail, an electric slide block, a second electric telescopic rod, a support plate, and a detection probe, to accurately detect and determine the location of leaks in municipal pipelines after preliminary screening of leak locations.

[0021] 6. This invention utilizes a marking assembly consisting of a third electric telescopic rod and a bar stamp to mark the location of leaks on the inner wall of municipal pipelines with ink, facilitating subsequent repair and reprocessing of the leaks.

[0022] 7. This invention utilizes a pipeline inspection mechanism composed of a cylindrical base, a semi-circular pull ring, a guide support assembly, a leak detection assembly 1, a leak detection assembly 2, a marking assembly, and a traction assembly. This mechanism enables comprehensive and rapid leak location detection of municipal pipelines without any missed leaks. Furthermore, it can mark the locations of detected leaks on the municipal pipelines to facilitate subsequent repairs and rework. It has the advantages of convenient operation, saving time and effort, and improving work efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0025] Figure 2 This is a schematic diagram of the front sectional view of this embodiment.

[0026] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle.

[0027] Figure 4 yes Figure 3 A magnified structural diagram of part B.

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the cylindrical base.

[0029] Figure 6 This is a three-dimensional structural diagram of a ring-shaped electric guide rail.

[0030] In the diagram, 1. Base; 2. Pad; 3. Arc-shaped support plate; 4. Municipal pipeline; 5. Column; 6. Horizontal plate; 7. Hydraulic cylinder; 8. Arc-shaped pressure plate; 9. Cylindrical base; 10. Semi-circular pull ring; 11. Groove; 12. First electric telescopic rod; 13. Roller; 14. Annular air bladder; 15. Air pump; 16. Inhalation pipe; 17. Outhalation pipe; 18. Four-way pipe; 19. First inflation pipe; 20. First solenoid valve; 21. Second inflation pipe; 2 2. Second solenoid valve; 23. Air pressure detector; 24. First camera; 25. Vent pipe; 26. Solenoid vent valve; 27. Ultrasonic flaw detector; 28. Circular electric guide rail; 29. ​​Electric slide block; 30. Second electric telescopic rod; 31. Support plate; 32. Detection probe; 33. Third electric telescopic rod; 34. Bar stamp; 35. Second camera; 36. Winch; 37. Traction rope; 38. Mounting cavity; 39. Battery. Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This invention provides a precise leak location and detection device for municipal pipelines, including a base 1 and a municipal pipeline 4, a pipeline clamping mechanism, and a pipeline detection mechanism mounted on the base 1. The pipeline clamping mechanism is used to clamp and fix the municipal pipeline 4. The pipeline clamping mechanism includes a pad 2, an arc-shaped support plate 3, a column 5, a horizontal plate 6, a hydraulic cylinder 7, and an arc-shaped pressure plate 8. The pad 2 is fixedly installed on the top of the base 1, and the arc-shaped support plate 3 is fixedly installed on the top of the pad 2. The municipal pipeline 4 is placed on the arc-shaped support plate 3. By utilizing the joint connection and cooperation of the pad 2 and the arc-shaped support plate 3, the municipal pipeline 4 can be stably supported above the base 1. The column 5 is fixedly installed. At the top of the base 1, a horizontal plate 6 is fixedly installed at the top of the column 5, a hydraulic cylinder 7 is fixedly installed at the bottom of the horizontal plate 6, and an arc-shaped pressure plate 8 is fixedly installed at the output shaft end of the hydraulic cylinder 7. The arc-shaped pressure plate 8 contacts the top surface of the municipal pipeline 4. The hydraulic cylinder 7 can control the vertical movement of the arc-shaped pressure plate 8, and the arc-shaped pressure plate 8 can press the municipal pipeline 4 tightly onto the arc-shaped support plate 3. Therefore, during the leak detection process of the municipal pipeline 4, the municipal pipeline 4 will not shift. It should be noted that the number of pads 2 is set to at least two, and the number of arc-shaped support plates 3, hydraulic cylinders 7, and arc-shaped pressure plates 8 are all set to the same number as the number of pads 2.

[0033] The pipeline inspection mechanism is used to locate and detect leaks in the municipal pipeline 4. The pipeline inspection mechanism includes a cylindrical base 9, a semi-circular pull ring 10, a guide support assembly, a leak detection assembly one, a leak detection assembly two, a marking assembly, and a traction assembly. The cylindrical base 9 is located inside the municipal pipeline 4. The semi-circular pull ring 10 is fixedly connected to the left outer wall of the cylindrical base 9. The guide support assembly, leak detection assembly one, and leak detection assembly two are all set on the cylindrical base 9. The guide support assembly is used to guide the cylindrical base 9 to slide horizontally and linearly inside the municipal pipeline 4. Leak detection assembly one is used to initially detect the location of leaks on the municipal pipeline 4. Leak detection assembly two is used to accurately detect the location of leaks on the municipal pipeline 4. The marking assembly is set on leak detection assembly two and is used to mark the location of leaks on the municipal pipeline 4. The traction assembly is set on the top of the base 1 and located on the left side of the municipal pipeline 4. The traction assembly is used to pull the cylindrical base 9 to move horizontally and linearly inside the municipal pipeline 4.

[0034] In this embodiment, the number of guide support components is set to two sets, which are respectively distributed on the left and right sides of the cylindrical base 9. The guide support components include four first electric telescopic rods 12 and four rollers 13. Four grooves 11 are formed on the outer wall of the cylindrical base 9. The four grooves 11 are distributed in a ring with equal spacing. The four first electric telescopic rods 12 are respectively fixedly installed in the corresponding grooves 11. The output shaft ends of the four first electric telescopic rods 12 extend to the outside of the corresponding grooves 11. The four rollers 13 are respectively rotatably installed on the output shaft ends of the corresponding first electric telescopic rods 12. All four rollers 13 are in rolling contact with the inner wall of the municipal pipeline 4. The first electric telescopic rods 12 can be used to control the movement of the rollers 13. All 3 roll against the inner wall of the municipal pipeline 4, supporting and positioning the cylindrical seat 9 inside the municipal pipeline 4, so as to maintain the smooth and linear movement of the cylindrical seat 9 within the municipal pipeline 4. The above-mentioned leak detection component includes two annular airbags 14, an air pump 15, an air intake pipe 16, an air outlet pipe 17, a four-way pipe 18, two first air intake pipes 19, two first solenoid valves 20, a second air intake pipe 21, a second solenoid valve 22, and an air pressure detector 23. The two annular airbags 14 are fixedly fitted onto the outer wall of the cylindrical seat 9. The cylindrical seat 9 has an installation cavity 38. The air pump 15 is fixedly installed on the bottom inner wall of the installation cavity 38. One end of the air intake pipe 16 is fixedly connected to the suction end of the air pump 15, and the air intake pipe 16 is away from the air pump. One end of the air pump 15 extends to the outside of the cylindrical base 9. One end of the air outlet pipe 17 is fixedly connected to the discharge end of the air pump 15. The air inlet end of the four-way pipe 18 is fixedly connected to the end of the air outlet pipe 17 away from the air pump 15. One end of each of the two first inflation pipes 19 is fixedly connected to the corresponding annular inflation bladder 14. The two first inflation pipes 19 are respectively connected to the inside of the corresponding annular inflation bladder 14. The ends of the two first inflation pipes 19 away from the corresponding annular inflation bladder 14 extend into the mounting cavity 38 and are fixedly connected to the left and right air outlets of the four-way pipe 18, respectively. Two first solenoid valves 20 are fixedly installed on the corresponding first inflation pipes 19. The bottom end of the second inflation pipe 21 is fixedly connected to the top air outlet of the four-way pipe 18. The top of the device extends to the outside of the cylindrical base 9 and is located between the two annular inflatable bladders 14. The second solenoid valve 22 is fixedly installed on the second inflation tube 21. The air pressure detector 23 is fixedly installed on the outer wall of the cylindrical base 9 and is located between the two annular inflatable bladders 14. After the two annular inflatable bladders 14 are inflated, they fit tightly against the inner wall of the municipal pipeline 4, sealing the space enclosed by the cylindrical base 9, the two annular inflatable bladders 14, and the municipal pipeline 4. The air pump 15 can be used to inflate the inside of the two annular inflatable bladders 14 and to inflate the space enclosed by the cylindrical base 9, the two annular inflatable bladders 14, and the municipal pipeline 4. The air pressure detector 23 can be used to monitor the air pressure value of the space enclosed by the cylindrical base 9, the two annular inflatable bladders 14, and the municipal pipeline 4.By judging whether the air pressure value changes, it can be determined whether there is a leak in the municipal pipeline 4 between the two annular airbags 14. This allows for a preliminary screening of leak locations on the municipal pipeline 4. It should be noted that the outer surface of the annular airbag 14 is coated with a smooth, wear-resistant coating or has wear-resistant rubber adhered to it, making the annular airbag 14 wear-resistant and durable. The aforementioned leak detection component two includes an ultrasonic flaw detector 27, an annular electric guide rail 28, an electric slide 29, a second electric telescopic rod 30, a support plate 31, and a detection probe 32. The ultrasonic flaw detector 27 is fixedly installed in the mounting cavity 38, and the annular electric guide rail 28 is fixed... The device is fitted onto the outer wall of the cylindrical base 9 and located between two annular inflatable bladders 14. An electric slide 29 is slidably mounted on an annular electric guide rail 28. A second electric telescopic rod 30 is fixedly mounted on the top of the electric slide 29. A support plate 31 is fixedly mounted on the output shaft end of the second electric telescopic rod 30. A detection probe 32 is fixedly mounted on the top of the support plate 31. The detection probe 32 is electrically connected to the ultrasonic flaw detector 27. By sliding the electric slide 29 on the annular electric guide rail 28, the detection probe 32 can be controlled to perform circular motion. The second electric telescopic rod 30 can be used to control the linear movement of the detection probe 32. The detection probe 32 can be used for precise detection. The marking assembly used to locate leaks in municipal pipeline 4 includes a third electric telescopic rod 33 and a bar stamp 34. The third electric telescopic rod 33 is fixedly installed on the top of the support plate 31 and located in front of the detection probe 32. The bar stamp 34 is fixedly installed on the output shaft end of the third electric telescopic rod 33. The top surface of the bar stamp 34 is coated with ink. Using the third electric telescopic rod 33, the bar stamp 34 can be controlled to move linearly. The bar stamp 34 can then imprint the ink onto the inner wall of the municipal pipeline 4, thus marking the leak location on the inner wall of the municipal pipeline 4. This facilitates subsequent work by personnel to locate leaks in the municipal pipeline 4. The aforementioned traction assembly includes a winch 36 and a traction rope 37. The winch 36 is fixedly installed on the top of the base 1 and located on the left side of the municipal pipeline 4. A rope drum is fixedly installed on the output shaft end of the winch 36. The traction rope 37 is wound on the rope drum, and the end of the traction rope 37 away from the rope drum extends into the municipal pipeline 4 and is tied to the semi-circular pull ring 10. The winch 36 is used to wind up or release the traction rope 37. The traction rope 37 can be used to pull the cylindrical base 9 to move linearly within the municipal pipeline 4, facilitating comprehensive leak detection of the municipal pipeline 4. It should be noted that the winch 36 is driven by a low-speed motor.

[0035] In this embodiment, a first camera 24 is fixedly installed on the outer wall of the cylindrical base 9 between the two annular airbags 14. The first camera 24 is located directly to the right of the barometer 23. The first camera 24 is used to capture the barometer value displayed on the barometer 23. The captured image can be transmitted to an external display screen for display by existing wireless transmission methods so that staff can view it.

[0036] In this embodiment, a first one-way valve is fixedly installed inside the air intake pipe 16. The first one-way valve is used to control the unidirectional flow of air in the air intake pipe 16. A second one-way valve is fixedly installed inside the air outlet pipe 17. The second one-way valve is used to control the unidirectional flow of air in the air outlet pipe 17. A vent pipe 25 is fixedly connected to each of the two first inflation pipes 19. The ends of the two vent pipes 25 away from the corresponding first inflation pipes 19 extend to the outside of the cylindrical base 9. An electromagnetic vent valve 26 is fixedly installed on each of the two vent pipes 25. Using the vent pipes 25 and the electromagnetic vent valve 26, the air inside the annular inflation bag 14 can be discharged.

[0037] In this embodiment, a second camera 35 is fixedly installed on the left inner wall of the mounting cavity 38. The second camera 35 is located directly to the left of the ultrasonic flaw detector 27. The second camera 35 is used to capture the detection data displayed on the ultrasonic flaw detector 27. The captured image can be transmitted to an external display screen for display by existing wireless transmission methods so that staff can view it.

[0038] In this embodiment, a storage battery 39 is fixedly installed inside the mounting cavity 38. The storage battery 39 is used to supply power to the first electric telescopic rod 12, air pump 15, first solenoid valve 20, second solenoid valve 22, air pressure detector 23, electromagnetic vent valve 26, ultrasonic flaw detector 27, annular electric guide rail 28, electric slide block 29, second electric telescopic rod 30, third electric telescopic rod 33, first camera 24, and second camera 35. It should be noted that the first electric telescopic rod 12, air pump 15, first solenoid valve 20, second solenoid valve 22, air pressure detector 23, electromagnetic vent valve 26, ultrasonic flaw detector 27, annular electric guide rail 28, electric slide block 29, second electric telescopic rod 30, third electric telescopic rod 33, first camera 24, and second camera 35 are respectively powered by the electric telescopic rod 12, air pump 15, first solenoid valve 20, second solenoid valve 22, air pressure detector 23, electromagnetic vent valve 26, ultrasonic flaw detector 27, annular electric guide rail 28, electric slide block 29, and second electric telescopic rod 30. The seat 29, the second electric telescopic rod 30, the third electric telescopic rod 33, the first camera 24, and the second camera 35 were all purchased from the market. The first electric telescopic rod 12, the air pump 15, the first solenoid valve 20, the second solenoid valve 22, the air pressure detector 23, the electromagnetic vent valve 26, the ultrasonic flaw detector 27, the circular electric guide rail 28, the electric slide 29, the second electric telescopic rod 30, the third electric telescopic rod 33, the first camera 24, and the second camera 35 are equipped with power supplies and are all powered on and operated by remote wireless control. Their control methods and circuit connection methods are mature technologies in this field and have been fully disclosed, so they will not be repeated in the specification.

[0039] With the above structure, the municipal pipeline precise leak location and detection equipment provided by this invention can comprehensively and quickly locate and detect leaks in the municipal pipeline 4 without any missed detections. It can also mark the locations of detected leaks on the municipal pipeline 4 for subsequent repair and rework. It has the advantages of convenient operation, saving time and effort, and improving work efficiency. In specific operation, the municipal pipeline 4 is placed on the arc-shaped support plate 3. By controlling the extension of the hydraulic cylinder 7, the arc-shaped pressure plate 8 is controlled to move vertically downwards until it firmly contacts the top surface of the municipal pipeline 4. At this point, a secure and stable clamping and fixation of the municipal pipeline 4 is achieved. Then, the winch 36 is controlled to reverse and gradually release the traction rope 37, pulling the traction rope 37 away from the winch 36. When one end of the traction rope 37 passes through the municipal pipeline 4, stop the operation of the winch 36 and tie the end of the traction rope 37 away from the winch 36 to the semi-circular pull ring 10 on the left side of the cylindrical seat 9. Then, insert the cylindrical seat 9 into the municipal pipeline 4 from the right end. By controlling the extension of the eight first electric telescopic rods 12, all eight rollers 13 can be tightly pressed against the inner wall of the municipal pipeline 4. At this time, the cylindrical seat 9 can be stably supported and positioned inside the municipal pipeline 4. Then, by controlling the opening of the two first solenoid valves 20 and keeping the second solenoid valve 22 and the two solenoid vent valves 26 in the closed state, the air pump 15 is controlled to run, which can inflate the two annular air bladders 14. The two annular air bladders 14 gradually expand until they are tightly fitted against the inner wall of the municipal pipeline 4. When the air pump 15 is stopped, the two first solenoid valves 20 are closed, and the second solenoid valve 22 is opened. The air pump 15 is then kept running, allowing air to be inflated into the sealed space formed by the cylindrical seat 9, the two annular inflatable bladders 14, and the municipal pipeline 4. The air pressure is monitored by turning on the air pressure detector 23. When the sealed space has a certain air pressure, the air pump 15 is stopped, and the winch 36 is turned forward to gradually wind up the traction rope 37. The traction rope 37 then moves the cylindrical seat 9 in a straight line from right to left inside the municipal pipeline 4. During the movement, when the sealed space formed by the cylindrical seat 9, the two annular inflatable bladders 14, and the municipal pipeline 4 reaches a certain pressure, the air pump 15 is stopped. The winch 36 is then turned forward to gradually wind up the traction rope 37. The traction rope 37 then moves the cylindrical seat 9 in a straight line from right to left inside the municipal pipeline 4. When the air pressure in the sealed space remains constant, it indicates that there are no leaks on the pipe wall of this section of municipal pipeline 4. When the air pressure in the sealed space formed by the cylindrical seat 9, the two annular inflatable bladders 14, and the municipal pipeline 4 decreases, it indicates that there are leaks on the pipe wall of the municipal pipeline 4 between the two annular inflatable bladders 14. At this time, the winch 36 is stopped, and the ultrasonic flaw detector 27 is turned on. The second electric telescopic rod 30 is extended so that the detection probe 32 contacts the inner wall of the municipal pipeline 4. Then, the electric slide 29 is moved on the annular electric guide rail 28, which controls the detection probe 32 to perform circular motion to accurately detect the location of leaks on the pipe wall. When a leak is detected, the third electric telescopic rod 33 is extended.The bar stamp 34 can be controlled to move and imprint ink onto the inner wall of the municipal pipeline 4 to mark the leak point. After detecting and marking the leak point between the two annular air bladders 14, the sliding of the electric slide 29 is stopped, the ultrasonic flaw detector 27 is turned off, and the second electric telescopic rod 30 and the third electric telescopic rod 33 are controlled to retract and reset. Then, the winch 36 is controlled to rotate forward and wind up the traction rope 37, pulling the cylindrical seat 9 to continue moving straight to the left inside the municipal pipeline 4. The sealed space enclosed by the cylindrical seat 9, the two annular air bladders 14, and the municipal pipeline 4 is re-inflated according to the above inflation steps until it has a certain pressure. With a set air pressure value, leak detection of municipal pipeline 4 can continue, enabling rapid and comprehensive leak location detection without any missed leaks. When the cylindrical seat 9 is about to be removed from the left end of municipal pipeline 4, the winch 36 is stopped. By controlling the retraction and reset of the eight first electric telescopic rods 12, the cylindrical seat 9 can be removed from municipal pipeline 4. Then, one end of the traction rope 37 is untied from the semi-circular pull ring 10. Finally, the hydraulic cylinder 7 is reset, causing the arc-shaped pressure plate 8 to rise and release the clamping fixation on municipal pipeline 4, allowing the inspected municipal pipeline 4 to be removed.

Claims

1. A precise leak detection device for municipal pipelines, characterized in that, It includes a base (1) and a municipal pipeline (4) set on the base (1), a pipeline clamping mechanism and a pipeline detection mechanism. The pipeline clamping mechanism is used to clamp and fix the municipal pipeline (4), and the pipeline detection mechanism is used to locate and detect leaks in the municipal pipeline (4). The pipeline inspection mechanism includes a cylindrical base (9), a semi-circular pull ring (10), a guide support assembly, a leak detection assembly one, a leak detection assembly two, a marking assembly, and a traction assembly. The cylindrical base (9) is located inside the municipal pipeline (4). The semi-circular pull ring (10) is fixedly connected to the left outer wall of the cylindrical base (9). The guide support assembly, the leak detection assembly one, and the leak detection assembly two are all set on the cylindrical base (9). The guide support assembly is used to guide the cylindrical base (9) to slide horizontally in a straight line inside the municipal pipeline (4). The leak detection assembly one is used to initially detect the leak points on the municipal pipeline (4). The leak detection assembly two is used to accurately detect the leak points on the municipal pipeline (4). The marking assembly is set on the leak detection assembly two. The marking assembly is used to mark the leak points on the municipal pipeline (4). The traction assembly is set on the top of the base (1) and located on the left side of the municipal pipeline (4). The traction assembly is used to pull the cylindrical base (9) to move horizontally in a straight line inside the municipal pipeline (4).

2. The municipal pipeline precise leak location and detection equipment according to claim 1, characterized in that: The pipe clamping mechanism includes a pad (2), an arc-shaped support plate (3), a column (5), a horizontal plate (6), a hydraulic cylinder (7), and an arc-shaped pressure plate (8). The pad (2) is fixedly installed on the top of the base (1), the arc-shaped support plate (3) is fixedly installed on the top of the pad (2), the municipal pipe (4) is placed on the arc-shaped support plate (3), the column (5) is fixedly installed on the top of the base (1), the horizontal plate (6) is fixedly installed on the top of the column (5), the hydraulic cylinder (7) is fixedly installed on the bottom of the horizontal plate (6), and the arc-shaped pressure plate (8) is fixedly installed on the output shaft end of the hydraulic cylinder (7). The arc-shaped pressure plate (8) is in contact with the top surface of the municipal pipe (4).

3. The municipal pipeline precise leak location and detection equipment according to claim 1, characterized in that: The guide support assembly is set to two sets, and the two sets of guide support assemblies are respectively distributed on the left and right sides of the cylindrical base (9). The guide support assembly includes four first electric telescopic rods (12) and four rollers (13). Four grooves (11) are provided on the outer wall of the cylindrical base (9). The four grooves (11) are distributed in a ring at equal intervals. The four first electric telescopic rods (12) are respectively fixedly installed in the corresponding grooves (11). The output shaft ends of the four first electric telescopic rods (12) extend to the outside of the corresponding grooves (11). The four rollers (13) are respectively rotatably installed on the output shaft ends of the corresponding first electric telescopic rods (12). The four rollers (13) are all in rolling contact with the inner wall of the municipal pipeline (4).

4. The municipal pipeline precise leak location and detection equipment according to claim 1, characterized in that: The leak detection assembly includes two annular airbags (14), an air pump (15), an air intake pipe (16), an air outlet pipe (17), a four-way pipe (18), two first inflation pipes (19), two first solenoid valves (20), a second inflation pipe (21), a second solenoid valve (22), and a pressure detector (23). Both annular airbags (14) are fixedly mounted on the outer wall of the cylindrical base (9). The cylindrical base (9) has an installation cavity (38). The air pump... (15) is fixedly installed on the bottom inner wall of the mounting cavity (38). One end of the suction pipe (16) is fixedly connected to the suction end of the air pump (15). The end of the suction pipe (16) away from the air pump (15) extends to the outside of the cylindrical seat (9). One end of the outlet pipe (17) is fixedly connected to the discharge end of the air pump (15). The air inlet end of the four-way pipe (18) is fixedly connected to the end of the outlet pipe (17) away from the air pump (15). The two first inflation tubes are fixedly connected to the two first inflation tubes. One end of the tube (19) is fixedly connected to the corresponding annular airbag (14). The two first inflation tubes (19) are connected to the interior of the corresponding annular airbag (14). The ends of the two first inflation tubes (19) away from the corresponding annular airbag (14) extend into the mounting cavity (38) and are fixedly connected to the left and right air outlets of the four-way tube (18). The two first solenoid valves (20) are fixedly installed on the corresponding first inflation tubes (19). The bottom end of the second inflation tube (21) is fixedly connected to the top air outlet of the four-way tube (18). The top end of the second inflation tube (21) extends to the outside of the cylindrical seat (9) and is located between the two annular airbags (14). The second solenoid valve (22) is fixedly installed on the second inflation tube (21). The air pressure detector (23) is fixedly installed on the outer wall of the cylindrical seat (9) and is located between the two annular airbags (14).

5. The municipal pipeline precise leak location and detection equipment according to claim 4, characterized in that: A first camera (24) is fixedly installed on the outer wall of the cylindrical base (9) between the two annular inflatable bladders (14), and the first camera (24) is located directly to the right of the air pressure detector (23).

6. The municipal pipeline precise leak location and detection equipment according to claim 4, characterized in that: A first one-way valve is fixedly installed inside the air inlet pipe (16), and a second one-way valve is fixedly installed inside the air outlet pipe (17). A vent pipe (25) is fixedly connected to each of the two first air inlet pipes (19). The ends of the two vent pipes (25) away from the corresponding first air inlet pipes (19) extend to the outside of the cylindrical seat (9). An electromagnetic vent valve (26) is fixedly installed on each of the two vent pipes (25).

7. The municipal pipeline precise leak location and detection equipment according to claim 4, characterized in that: The second leak detection component includes an ultrasonic flaw detector (27), an annular electric guide rail (28), an electric slide (29), a second electric telescopic rod (30), a support plate (31), and a detection probe (32). The ultrasonic flaw detector (27) is fixedly installed in the mounting cavity (38). The annular electric guide rail (28) is fixedly fitted on the outer wall of the cylindrical seat (9) and located between two annular inflatable bladders (14). The electric slide (29) is slidably installed on the annular electric guide rail (28). The second electric telescopic rod (30) is fixedly installed on the top of the electric slide (29). The support plate (31) is fixedly installed on the output shaft end of the second electric telescopic rod (30). The detection probe (32) is fixedly installed on the top of the support plate (31). The detection probe (32) is electrically connected to the ultrasonic flaw detector (27).

8. The municipal pipeline precise leak location and detection equipment according to claim 7, characterized in that: The marking assembly includes a third electric telescopic rod (33) and a bar stamp (34). The third electric telescopic rod (33) is fixedly installed on the top of the support plate (31) and located in front of the detection probe (32). The bar stamp (34) is fixedly installed on the output shaft end of the third electric telescopic rod (33). The top surface of the bar stamp (34) is coated with ink.

9. The municipal pipeline precise leak location and detection equipment according to claim 7, characterized in that: A second camera (35) is fixedly installed on the left inner wall of the mounting cavity (38). The second camera (35) is located directly to the left of the ultrasonic flaw detector (27). A storage battery (39) is fixedly installed inside the mounting cavity (38).

10. The municipal pipeline precise leak location and detection equipment according to claim 1, characterized in that: The traction assembly includes a winch (36) and a traction rope (37). The winch (36) is fixedly installed on the top of the base (1) and located on the left side of the municipal pipeline (4). A rope drum is fixedly installed on the output shaft end of the winch (36). The traction rope (37) is wound on the rope drum. One end of the traction rope (37) away from the rope drum extends into the municipal pipeline (4) and is tied to a semi-circular pull ring (10).

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