A buried pipeline inspection device

Abstract

The application belongs to the technical field of pipeline flaw detection, and particularly relates to a buried pipeline flaw detection device, which comprises a detection mechanism, a detection head arranged on the detection mechanism, a cleaning assembly arranged on the detection mechanism, a connecting seat, a supporting seat, a fixing plate, a rotating connecting rod, a mounting rod and a cleaning plate. Further, the cleaning assembly is further provided with a cleaning claw, an adjusting assembly, a dismounting assembly and a recycling assembly. The buried pipeline flaw detection device can clean rust, mud and other sundries attached to the inner wall of the pipeline during pipeline flaw detection, prevent the detection head from being blocked and adhered by the rust, mud and other sundries on the inner wall of the pipeline during flaw detection, improve the accuracy of pipeline flaw detection data, avoid data errors, collect and recycle the cleaned sundries, prevent the cleaned sundries from continuing to accumulate in the pipeline, and affect the use of the pipeline.

Description

Technical Field

[0001] This invention belongs to the field of pipeline flaw detection technology, specifically relating to a buried pipeline flaw detection device. Background Technology

[0002] Pipelines bear vital transportation responsibilities, and their quality directly impacts national public safety and livelihoods. Therefore, relevant quality inspection units frequently conduct flaw detection on various parts of these pipelines. Ultrasonic testing is an indispensable procedure for detecting internal pipeline defects. The flaw detection instruments in this technology advance in a straight line inside the pipeline while simultaneously detecting defects around its perimeter.

[0003] When existing flaw detection devices are used to detect flaws in buried pipelines, due to the long-term use of the buried pipelines, rust, dirt and other debris will adhere to the inner wall of the pipeline. During the flaw detection process, the rust, dirt and other debris on the inner wall of the pipeline will stick to the surface of the probe. The probe will be blocked by rust, dirt and other debris, thus making it impossible to detect the pipeline surface or causing inaccurate detection data, resulting in errors in the flaw detection results. Summary of the Invention

[0004] To address the technical problems mentioned in the background section, this invention provides a buried pipeline flaw detection device that can clean the inner wall of the pipeline, allowing the probe head on the flaw detection device to adhere to the inner wall of the pipeline. This improves the accuracy of the flaw detection device and prevents rust, mud, and other debris adhering to the inner wall of the pipeline from obstructing or sticking to the probe head.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A buried pipeline flaw detection device includes a movable detection mechanism and a probe head mounted on the detection mechanism, and a cleaning assembly mounted on the detection mechanism. The cleaning assembly includes a connecting seat, a support seat, a fixing plate, a rotating connecting rod, a mounting rod, and a cleaning plate. The connecting seat is fixedly mounted on the detection mechanism, and the support seat is fixedly mounted above the connecting seat. A rotating connecting rod drive mechanism is provided in the hollow structure inside the support seat. A pair of rotating connecting rods symmetrically rotatably mounted on the front and rear sides of the support seat and rotatably connected to the rotating connecting rod drive mechanism are provided. The rear end of one rotating connecting rod on the rear side is fixedly connected to the probe head, and the front end of the other rotating connecting rod on the front side is fixedly connected to the fixing plate. The mounting rod passes through the left and right surfaces of the fixing plate, and cleaning plates are symmetrically fixed at both ends of the mounting rod. The outer end of the cleaning plate has an arc-shaped structure, and the arc of the arc-shaped structure is the same as the arc of the inner wall of the pipeline.

[0007] Preferably, the cleaning assembly further includes a worm gear, a worm, a support rod, and a cleaning claw. A worm is installed between the two rotating connecting rods. The worm is located in the hollow structure inside the support base. A worm gear is provided in the hollow structure inside the support base. The worm gear meshes with the worm. Support rods are symmetrically installed on both sides of the worm gear. The support rods pass through the left and right sides of the support base and are rotatably connected to the support base. A cleaning claw is fixedly provided at the end of the support rod.

[0008] Preferably, the end of the cleaning claw is provided with an arc-shaped structure, and the curvature of the arc-shaped structure is the same as the curvature of the inner wall of the pipe.

[0009] Preferably, the cleaning assembly further includes gear one, gear two, a servo motor, and a drive rod. Gear one is fitted around the outer periphery of the surface of one of the rotating connecting rods. A drive rod is rotatably mounted in the hollow internal structure of the support base. The drive rod is arranged parallel to the rotating connecting rod. Gear two is fitted around the outer periphery of the surface of the drive rod. Gear one meshes with gear two. A servo motor is mounted on the front or rear surface of the support base. The output shaft of the servo motor passes through the support base and is connected to one end of the drive rod.

[0010] The cleaning assembly also includes a worm gear, a worm, a support rod, and a cleaning claw. A worm is installed between the two rotating connecting rods. A worm gear is provided inside the support base and meshes with the worm. Support rods are symmetrically installed on the surface of the worm gear and are connected to the support base. A cleaning claw is provided on one side surface of the support base.

[0011] Preferably, the cleaning claw and the cleaning plate are arranged in an arc shape, and the arc is the same as the arc of the inner wall of the pipe.

[0012] Preferably, the cleaning assembly further includes gear one, gear two, a servo motor, and a drive rod. Gear one is mounted on the surface of one of the rotating connecting rods. The drive rod is rotatably connected inside the support base. Gear two is mounted on the surface of the drive rod. Gear one meshes with gear two. A servo motor is mounted on one side surface of the support base. The output end of the servo motor passes through the support base and is connected to one end of the drive rod.

[0013] Preferably, the device further includes a pair of symmetrically arranged adjustment components two mounted on the fixed plate. Each adjustment component two includes a telescopic guide rod, a compression spring, and a limiting plate. The telescopic guide rod is slidably installed in the through holes on the left and right sides of the fixed plate. One end of the telescopic guide rod passes through the fixed plate and is connected to the mounting rod. The other end of the telescopic guide rod is fixedly mounted on a telescopic guide rod positioning plate in the hollow structure inside the fixed plate. A limiting plate is fitted on the outer periphery of the end of the telescopic guide rod near the telescopic guide rod positioning plate. A compression spring is fitted on the outer periphery of the surface of the telescopic guide rod. One end of the compression spring abuts against the limiting plate, and the other end of the compression spring abuts against the inner sidewall of the fixed plate.

[0014] Preferably, it further includes a pair of symmetrically arranged adjustment components installed inside the support rod. The adjustment components include a telescopic slide rod, a return spring, and a pressure plate. The telescopic slide rod is slidably installed in the internal opening of the support rod. One end of the telescopic slide rod passes through the support rod and is connected to the cleaning claw. The other end of the telescopic slide rod is fixedly installed on a telescopic slide rod positioning plate in the hollow structure inside the support rod. A pressure plate is fitted around the outer periphery of the end of the telescopic slide rod near the telescopic slide rod positioning plate. A return spring is fitted around the outer periphery of the telescopic slide rod. One end of the return spring is connected to the inner surface of the pressure plate, and the other end of the return spring abuts against the telescopic slide rod fixing plate.

[0015] Preferably, the mounting rod also includes a disassembly assembly, which includes a plug fixedly disposed on the inner surface of the cleaning plate. A slot for inserting the plug is formed at the center of the end of the mounting rod, and the plug is inserted into the slot of the mounting rod.

[0016] Preferably, the disassembly assembly further includes a double-threaded rod and a nut, with corresponding through holes on the mounting rod and the insert for the double-threaded rod to pass through, and the double-threaded rod being threaded to the nut at both ends after passing through the mounting rod and the insert.

[0017] Preferably, the assembly further includes a recycling component installed on the front side of the connecting seat. The recycling component includes a recycling box, an inclined plate, a limiting rod, and a movable plate. The recycling box is located on the front side of the connecting seat. Inclined plates are symmetrically installed on the upper left and right sides of the recycling box. The recycling box is a square box with an open top. The side vertical plate of the recycling box near the front surface of the connecting seat has an inward groove that matches the connecting seat. The rear end of the T-shaped movable plate is located in the internal cavity of the connecting seat. The front end of the movable plate passes through the groove surface of the connecting seat and is fixedly connected to the recycling box. The front surface of the connecting seat has a vertical sliding groove that matches the movable plate. A limiting rod is slidably connected in a through hole on the rear surface of the movable plate. Both ends of the limiting rod pass through the movable plate and are connected to the connecting seat.

[0018] Preferably, the recycling assembly further includes a rotating rod, a rotating wheel, a pull rope, and a drive motor. Horizontal rotating rods are symmetrically rotatably mounted on the upper and lower sides of the internal cavity of the connecting seat. Rotating wheels are symmetrically mounted on the outer peripheral surfaces of the two rotating rods. One end of the pull rope is fixedly wound around the surface of the lower rotating wheel, and the other end of the pull rope passes around the surface of the upper rotating wheel and is connected to the moving plate. A drive motor is mounted on one side surface of the connecting seat, and the output end of the drive motor passes through the connecting seat and is connected to the lower rotating rod.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] By incorporating cleaning, adjustment, disassembly, and recycling components, the system can remove rust, dirt, and other debris adhering to the inner wall of the pipeline during flaw detection. This prevents the probe from being blocked by rust, dirt, and other debris, thus improving the accuracy of the pipeline detection data and avoiding data errors. Furthermore, the system can collect and recycle the removed debris to prevent it from accumulating inside the pipeline and affecting its use. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the detection mechanism according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the drive motor and connecting seat in an embodiment of the present invention;

[0024] Figure 3 This is a schematic cross-sectional view of the connecting seat and the support seat in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the support rod and telescopic slide rod in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the rotating rod and the rotating wheel in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the compression spring and limiting plate in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of gear one and gear two in an embodiment of the present invention;

[0029] Figure 8This is a schematic diagram of the limiting rod and moving plate in an embodiment of the present invention;

[0030] In the picture:

[0031] 1. Detection mechanism; 12. Detector head;

[0032] 2. Cleaning assembly; 21. Connecting seat; 22. Support seat; 23. Fixing plate; 24. Rotating connecting rod; 25. Mounting rod; 26. Cleaning plate; 27. Worm gear; 28. Worm; 29. ​​Support rod; 210. Cleaning claw; 211. Gear 1; 212. Gear 2; 213. Servo motor; 214. Drive rod;

[0033] 3. Adjustment component one; 31. Telescopic guide rod; 32. Compression spring; 33. Limiting plate; 34. Telescopic slide rod; 35. Return spring; 36. Pressure plate;

[0034] 4. Disassemble the components; 41. Insert block; 42. Double-ended threaded rod; 43. Nut;

[0035] 5. Recycling components; 51. Recycling bin; 53. Inclined plate; 54. Limiting rod; 55. Moving plate; 56. Rotating rod; 57. Rotating wheel; 58. Pull rope; 59. Drive motor. Detailed Implementation

[0036] 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.

[0037] For ease of description, in the description of the embodiments of the present invention, "front" and "back" refer to the forward direction relative to the direction of travel of the buried pipeline flaw detection equipment. Example 1

[0038] like Figure 1 , Figure 2 , Figure 5 As shown, a buried pipeline flaw detection device includes a detection mechanism 1. The detection mechanism 1 includes a movable base and a vertical detection box fixedly connected to one end (rear end) of the movable base. A detection device is installed inside the detection box. A detection head 12 is disposed on one side (front side) of the detection box. The detection head 12 is connected to the detection device via a communication line to transmit detection data to the detection device of the detection mechanism 1. Both the detection head 12 and the detection mechanism 1 are existing technologies. Moving rollers are rotatably installed on both sides of the lower part of the detection box and on both sides of the movable base away from the detection box (front end). These four moving rollers allow the detection mechanism 1 to move inside the pipeline for flaw detection operations.

[0039] It also includes a cleaning assembly 2 fixedly installed above the movable base, located on the outside (front) of the probe head 12. The cleaning assembly 2 includes a connecting seat 21, a support seat 22, a fixing plate 23, a rotating connecting rod 24, a mounting rod 25, and a cleaning plate 26. The connecting seat 21 is fixedly installed on the upper surface of the movable base, and the support seat 22 is installed on the upper surface of the connecting seat 21. The support seat 22 has a hollow structure inside, and a rotating connecting rod drive mechanism is provided in the hollow structure of the support seat 22. A pair of rotating connecting rods 24 are symmetrically rotated on the front and rear sides of the support seat 22. The length direction of the rotating connecting rods 24 is consistent with the forward direction of the probe mechanism 1. The pair of rotating connecting rods 24 are connected to the rotating connecting rod drive mechanism to achieve rotation. One of the rotating connecting rods 24 has its rear end passing through the probe head 12 and fixedly connected to the probe head 12, and is rotatably connected to the front side of the probe box. The probe box provides support and limit for the rotating connecting rod 24. The front end of the other rotating connecting rod 24 is fixedly connected to the fixing plate 23. The mounting rod 25 passes through the left and right sides of the fixing plate 23. Cleaning plates 26 are symmetrically arranged at both ends of the mounting rod 25. The outer end of the cleaning plate 26 has an arc-shaped structure.

[0040] In the technical solution of this embodiment 1, when performing flaw detection on the inner wall of the pipeline, the rotating connecting rod 24 can be driven to rotate by the rotating connecting rod drive mechanism inside the support base 22, so that the two rotating connecting rods 24 simultaneously drive the fixed plate 23 and the probe head 12 to rotate. During the rotation, the mounting rod 25 on the fixed plate 23 drives the cleaning plate 26 to rotate. Since the cleaning plate 26 is in front of the probe head 12, the cleaning plate 26 first cleans the rust, mud and other debris adhering to the inner wall of the pipeline. In this way, when the probe head 12 pushes the detection mechanism 1 to perform flaw detection on the pipeline, the rotating cleaning plate 26 can clean the inner wall of the pipeline, preventing the rust, mud and other debris adhering to the inner wall of the pipeline from obstructing the probe head 12. The rust and mud will also not adhere to the probe head 12, improving the accuracy of the pipeline flaw detection results. Example 2

[0041] Based on Example 1, Example 2 adds a cleaning claw 210 to the cleaning component 2 to further improve the cleaning effect of rust, mud and other debris adhering to the inner wall of the pipe.

[0042] like Figure 1 — Figure 5As shown, the cleaning assembly 2 also includes a worm gear 27, a worm 28, a support rod 29, and a cleaning claw 210. The worm 28 is installed between the two rotating connecting rods 24. The worm 28 is located in the hollow structure inside the support base 22. The worm gear 27 is also provided in the hollow structure inside the support base 22. The worm gear 27 meshes with the worm 28. The support rod 29 is symmetrically installed on both sides of the worm gear 27. The support rod 29 passes through the left and right sides of the support base 22 and is rotatably connected to the support base 22. The cleaning claw 210 is fixedly installed on the outer end of the support rod 29.

[0043] It should be noted that the cleaning claw 210 and the outer end of the cleaning plate 26 are set in an arc shape, and the curvature of the arc shape is the same as the curvature of the inner wall of the pipe. The arc shape of the cleaning claw 210 and the cleaning plate 26 can fit into the inner wall of the pipe, and clean the rust, dirt and other debris adhering to the surface more thoroughly.

[0044] The cleaning component 2 also includes a first gear 211, a second gear 212, a servo motor 213, and a drive rod 214. The first gear 211 is fitted around the outer periphery of the surface of one of the rotating connecting rods 24. The drive rod 214 is rotatably mounted in the hollow structure inside the support base 22. The drive rod 214 is parallel to the rotating connecting rod 24. The second gear 212 is fitted around the outer periphery of the surface of the drive rod 214. The first gear 211 and the second gear 212 mesh with each other. The servo motor 213 is fixedly mounted on one side surface (front or rear surface) of the support base 22. The output shaft of the servo motor 213 passes through the support base 22 and is connected to one end of the drive rod 214.

[0045] In the technical solution of this embodiment 2, the servo motor 213 is started. At this time, the output shaft of the servo motor 213 drives the drive rod 214 to rotate, thereby driving the gear 212 to rotate. Since the gear 211 meshes with the gear 212, the gear 211 drives the rotating connecting rod 24 to rotate. When the rotating connecting rod 24 rotates, it drives the worm 28 to rotate. Since the worm wheel 27 meshes with the worm 28, the worm wheel 27 drives the support rod 29 to rotate, thereby enabling the cleaning claw 210 at the end of the support rod 29 to clean the inner wall of the pipe, which can improve the cleaning effect and work efficiency of the inner wall of the pipe. Example 3

[0046] Based on Example 2, Example 3 adds an adjustment component (adjustment component 1 3 and adjustment component 2) to the cleaning component 2. The adjustment component can make the cleaning claw 210 and the cleaning plate 26 fit better against the inner wall of the pipe, thereby improving the cleaning effect on rust, mud and other debris.

[0047] like Figure 1 , Figure 6 , Figure 7As shown, it also includes a pair of symmetrically arranged adjustment components II installed in the hollow structure inside the fixed plate 23. The adjustment components II include a telescopic guide rod 31, a compression spring 32, and a limiting plate 33. The telescopic guide rod 31 is slidably installed in the through holes opened on the left and right sides of the fixed plate 23. One end of the telescopic guide rod 31 passes through the fixed plate 23 and is connected to the mounting rod 25. The other end of the telescopic guide rod 31 is fixedly installed on the telescopic guide rod positioning plate in the hollow structure inside the fixed plate 23. The limiting plate 33 is fitted on the outer peripheral surface of the end of the telescopic guide rod 31 near the telescopic guide rod positioning plate. The compression spring 32 is fitted on the outer peripheral surface of the telescopic guide rod 31. One end of the compression spring 32 abuts against the limiting plate 33, and the other end of the compression spring 32 abuts against the left and right inner sidewalls of the fixed plate 23.

[0048] It also includes a pair of symmetrically arranged adjustment components 3 installed in the hollow structure inside the support rod 29. The adjustment components 3 include a telescopic slide rod 34, a return spring 35, and a pressure plate 36. The telescopic slide rod 34 is slidably installed in the internal opening of the support rod 29. One end of the telescopic slide rod 34 passes through the support rod 29 and is connected to the cleaning claw 210. The other end of the telescopic slide rod 34 is fixedly installed on the telescopic slide rod positioning plate in the hollow structure inside the support rod 29. The pressure plate 36 is fitted around the outer periphery of the end of the telescopic slide rod 34 near the telescopic slide rod positioning plate. The return spring 35 is fitted around the outer periphery of the telescopic slide rod 34. One end of the return spring 35 is connected to the inner surface of the pressure plate 36, and the other end of the return spring 35 abuts against the telescopic slide rod positioning plate.

[0049] In the technical solution of this embodiment 3, when cleaning the inner wall of the pipe, the cleaning plate 26 is squeezed by the inner wall of the pipe. At this time, the telescopic guide rod 31 on the mounting rod 25 slides inside the fixed plate 23. During the sliding process, the telescopic guide rod 31 drives the limiting plate 33 to compress the compression spring 32, causing the compression spring 32 to deform. At this time, the elastic potential energy of the compression spring 32 can make the cleaning plate 26 fit tightly against the inner wall of the pipe, thereby adjusting the position of the cleaning plate 26. At the same time, the inner wall of the pipe squeezes the cleaning claw 210, and then the telescopic slide rod 34 on the cleaning claw 210 slides inside the support rod 29. During the sliding process, the pressure plate 36 on the telescopic slide rod 34 squeezes the return spring 35, causing the return spring 35 to deform. At this time, the elastic potential energy of the return spring 35 can make the cleaning claw 210 fit tightly against the inner wall of the pipe, thereby adjusting the position of the cleaning claw 210. Example 4

[0050] Considering that the cleaning plate 26 needs to be replaced after wear, embodiment 4 adds a disassembly component 4 to embodiment 3. The disassembly component 4 can facilitate the replacement of the cleaning plate 26.

[0051] like Figure 1 , 6As shown in Figure 7, the assembly also includes a disassembly component 4 mounted on the mounting rod 25. The disassembly component 4 includes an insert block 41, which is fixedly disposed on the inner surface of the cleaning plate 26. A slot for inserting the insert block 41 is formed at the center of the end of the mounting rod 25, and the insert block 41 is inserted into the slot of the mounting rod 25. The disassembly component 4 also includes a double-threaded rod 42 and a nut 43. Through holes for the double-threaded rod 42 to pass through are correspondingly formed on the mounting rod 25 and the insert block 41. After passing through the mounting rod 25 and the insert block 41, the double-threaded rod 42 is threadedly connected to the nut 43 at both ends. The double-threaded rod 42 can fix the position of the insert block 41, and the nut 43 can prevent the double-threaded rod 42 from detaching during use.

[0052] In the technical solution of this embodiment 4, when the cleaning plate 26 needs to be replaced after long-term use, the nuts 43 at both ends of the double-ended threaded rod 42 are rotated so that the nuts 43 are disengaged from both ends of the double-ended threaded rod 42. Then, the double-ended threaded rod 42 is pulled so that it is disengaged from the insert block 41 and the mounting rod 25. At this time, by pulling the insert block 41 and the cleaning plate 26, the insert block 41 is disengaged from the slot of the mounting rod 25, thereby facilitating the replacement of the cleaning plate 26. Example 5

[0053] Considering that the rust, mud and other debris cleaned up will accumulate inside the pipe, Example 5 adds a height-adjustable recycling component 5 based on Example 4.

[0054] like Figure 1-5 , Figure 8As shown, it also includes a recycling assembly 5 installed on the front side of the connecting seat 21. The recycling assembly 5 includes a recycling box 51, an inclined plate 53, a limiting rod 54, and a moving plate 55. The recycling box 51 is located below the cleaning claw 210 and the cleaning plate 26. The recycling box 51 is slidably disposed on the front surface of the connecting seat 21. The recycling box 51 is a square box with an opening at the top. The side vertical plate of the recycling box 51 near the front surface of the connecting seat 21 has an inwardly formed groove. The groove cooperates with the connecting seat 21, and the connecting seat 21 is located in the groove. The upper left and right sides of the recycling bin 51 are symmetrically equipped with outwardly inclined plates 53. A movable plate 55 with a T-shaped structure is installed on the groove surface of the recycling bin 51. The rear end of the movable plate 55 is located in the cavity inside the connecting seat 21, and the front end of the movable plate 55 passes through the connecting seat 21 and is fixedly connected to the groove surface of the recycling bin 51. The front surface of the connecting seat 21 has a vertical sliding groove that matches the movable plate 55. The recycling bin 51 and the connecting seat 21 are slidably connected through the movable plate 55 and the sliding groove. A limit rod 54 is slidably connected in the through hole on the rear surface of the movable plate 55. Both ends of the limit rod 54 pass through the movable plate 55 and are connected to the connecting seat 21. The limit rod 54 makes the up-and-down movement of the recycling bin 51 smoother and more stable. To reduce the friction when the recycling bin 51 moves up and down, a slide rail can be added at the sliding connection between the movable plate 55 and the connecting seat 21.

[0055] The recycling assembly 5 also includes two rotating rods 56, rotating wheels 57, a pull rope 58, and a drive motor 59. Horizontal rotating rods 56 are symmetrically arranged on the upper and lower sides inside the connecting base 21. Rotating wheels 57 are symmetrically installed on the outer circumferential surfaces of the two rotating rods 56. One end of the pull rope 58 is fixedly wrapped around the surface of the lower rotating wheel 57. The other end of the pull rope 58 passes around the surface of the upper rotating wheel 57 and is fixedly connected to the upper surface of the moving plate 55. A drive motor 59 is installed on one side surface of the connecting base 21. The output end of the drive motor 59 passes through the connecting base 21 and is connected to the lower rotating rod 56.

[0056] In the technical solution of this embodiment 5, when it is necessary to move the recycling bin 51 up and down to better collect rust and sludge, the drive motor 59 is first started. At this time, the drive motor 59 drives the lower rotating rod 56 and the upper rotating wheel 57 to rotate, thereby causing the pull rope 58 to wind or unwind on the lower rotating wheel 57, so that the pull rope 58 pulls the moving plate 55 and the recycling bin 51 to move up and down. The limiting rod 54 limits the moving plate 55, making it convenient for the staff to adjust the position of the recycling bin 51. When processing the scraped debris, the inclined plate 53 on the recycling bin 51 can guide the falling debris, so that the rust and sludge can fall into the recycling bin 51. This device can collect and recycle the falling debris.

[0057] The working principle and usage process of the detection device of this invention: When performing flaw detection on a pipeline, the detection mechanism 1 is placed inside the pipeline. At this time, the inner wall of the pipeline squeezes the cleaning claw 210 and the cleaning plate 26. The telescopic slide rod 34 and the telescopic guide rod 31 on the cleaning claw 210 and the cleaning plate 26 slide. During the sliding process, the pressure plate 36 and the limiting plate 33 simultaneously squeeze the reset spring 35 and the compression spring 32, thereby adjusting the position of the cleaning claw 210 and the cleaning plate 26 so that the cleaning claw 210 and the cleaning plate 26 can fit tightly against the inner wall of the pipeline. Then, the servo motor 213 is started. At this time, the output shaft of the servo motor 213 drives the drive rod 214 to rotate. During the rotation, the gear 212 rotates, which in turn drives the rotating connecting rod 24 to rotate. During the rotation of the rotating connecting rod 24, the probe head 12 and the fixing plate 23 rotate. During the rotation of the fixing plate 23, the mounting rod 25 rotates, which causes the cleaning plate 26 to rotate on the inner wall of the pipe. When the rotating connecting rod 24 rotates, the worm gear 28 rotates as well. Since the worm wheel 27 meshes with the worm gear 28, the worm wheel 27 rotates. During the rotation of the worm wheel 27, the support rod 29 rotates, which in turn drives the telescopic slide rod 34 to rotate, which in turn drives the cleaning claw 210 to rotate, further cleaning the inner wall of the pipe. At this point, the drive motor 59 is activated, causing the lower rotating rod 56 to rotate. The rotating rod 56 drives the rotating wheel 57 to rotate, and the rotating wheel 57 tightens the pull rope 58 during rotation, thereby causing the moving plate 55 on the recycling bin 51 to slide in the groove opened on the surface of the connecting seat 21. At this time, the cleaned debris enters the recycling bin 51 along the inclined plate 53, and the recycling bin 51 collects and recycles the debris. When the cleaning plate 26 needs to be replaced after long-term use, the nut 43 on the double-threaded rod 42 can be rotated to disengage from the surface of the double-threaded rod 42. Then, the cleaning plate 26 can be pulled, and the insert 41 on the cleaning plate 26 disengages from the slot opened on the surface of the mounting rod 25, thereby replacing the cleaning plate 26.

[0058] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A buried pipeline flaw detection device, comprising a movable detection mechanism (1) and a detection head (12) disposed on the detection mechanism (1), characterized in that: It also includes a cleaning assembly (2) installed on the detection mechanism (1); the cleaning assembly (2) includes a connecting seat (21), a support seat (22), a fixing plate (23), a rotating connecting rod (24), a mounting rod (25), and a cleaning plate (26). The connecting seat (21) is fixedly installed on the detection mechanism (1), and the support seat (22) is fixedly installed above the connecting seat (21). A rotating connecting rod drive mechanism is provided in the hollow structure inside the support seat (22), and the front and rear sides of the support seat (22) rotate symmetrically. A pair of rotating connecting rods (24) are installed and rotatedly connected to the rotating connecting rod drive mechanism. The rear end of one rotating connecting rod (24) is fixedly connected to the probe head (12), and the front end of the other rotating connecting rod (24) is fixedly connected to the fixing plate (23). The mounting rod (25) passes through the left and right surfaces of the fixing plate (23). Cleaning plates (26) are symmetrically fixed at both ends of the mounting rod (25). The outer end of the cleaning plate (26) is an arc-shaped structure, and the arc of the arc-shaped structure is the same as the arc of the inner wall of the pipe. The cleaning assembly (2) also includes a worm gear (27), a worm (28), a support rod (29), and a cleaning claw (210). The worm (28) is installed between the two rotating connecting rods (24). The worm (28) is located in the hollow structure inside the support base (22). The worm gear (27) is provided in the hollow structure inside the support base (22). The worm gear (27) meshes with the worm (28). The support rod (29) is symmetrically installed on both sides of the worm gear (27). The support rod (29) passes through the left and right sides of the support base (22) and is rotatably connected to the support base (22). The cleaning claw (210) is fixedly provided at the end of the support rod (29). The cleaning assembly (2) further includes a first gear (211), a second gear (212), a servo motor (213), and a drive rod (214). The first gear (211) is fitted around the outer periphery of the surface of one of the rotating connecting rods (24). The drive rod (214) is rotatably installed in the hollow internal structure of the support base (22). The drive rod (214) is parallel to the rotating connecting rod (24). The second gear (212) is fitted around the outer periphery of the surface of the drive rod (214). The first gear (211) meshes with the second gear (212). The servo motor (213) is installed on the front or rear surface of the support base (22). The output shaft of the servo motor (213) passes through the support base (22) and is connected to one end of the drive rod (214).

2. The buried pipeline flaw detection equipment according to claim 1, characterized in that: The end of the cleaning claw (210) is provided with an arc-shaped structure, and the curvature of the arc-shaped structure is the same as the curvature of the inner wall of the pipe.

3. The buried pipeline flaw detection equipment according to claim 2, characterized in that: It also includes a pair of symmetrically arranged adjustment components two installed on the fixed plate (23). The adjustment components two include a telescopic guide rod (31), a compression spring (32) and a limiting plate (33). The telescopic guide rod (31) is slidably installed in the through holes opened on the left and right sides of the fixed plate (23). One end of the telescopic guide rod (31) passes through the fixed plate (23) and is connected to the mounting rod (25). The other end of the telescopic guide rod (31) is fixedly installed on the telescopic guide rod positioning plate in the hollow structure inside the fixed plate (23). The limiting plate (33) is fitted on the outer peripheral surface of the end of the telescopic guide rod (31) near the telescopic guide rod positioning plate. The compression spring (32) is fitted on the outer peripheral surface of the surface of the telescopic guide rod (31). One end of the compression spring (32) abuts against the limiting plate (33), and the other end of the compression spring (32) abuts against the inner sidewall of the fixed plate (23).

4. The buried pipeline flaw detection equipment according to claim 3, characterized in that: It also includes a pair of symmetrically arranged adjustment components (3) installed inside the support rod (29). The adjustment components (3) include a telescopic slide rod (34), a return spring (35) and a pressure plate (36). The telescopic slide rod (34) is slidably installed in the internal opening of the support rod (29). One end of the telescopic slide rod (34) passes through the support rod (29) and is connected to the cleaning claw (210). The other end of the telescopic slide rod (34) is fixedly installed on the telescopic slide rod positioning plate in the hollow structure inside the support rod (29). The pressure plate (36) is fitted around the outer periphery of the end of the telescopic slide rod (34) near the telescopic slide rod positioning plate. The return spring (35) is fitted around the outer periphery of the telescopic slide rod (34). One end of the return spring (35) is connected to the inner surface of the pressure plate (36), and the other end of the return spring (35) abuts against the telescopic slide rod fixing plate.

5. The buried pipeline flaw detection equipment according to claim 1, characterized in that: It also includes a disassembly assembly (4) mounted on the mounting rod (25), the disassembly assembly (4) including a plug (41), the plug (41) being fixedly disposed on the inner surface of the cleaning plate (26), and a slot for the plug (41) to be inserted is provided at the center of the end of the mounting rod (25), the plug (41) being inserted into the slot of the mounting rod (25).

6. The buried pipeline flaw detection equipment according to claim 5, characterized in that: The disassembly assembly (4) also includes a double-threaded rod (42) and a nut (43). The mounting rod (25) and the insert (41) have corresponding through holes for the double-threaded rod (42) to pass through. After passing through the mounting rod (25) and the insert (41), the double-threaded rod (42) is threaded to the nut (43) at both ends.

7. The buried pipeline flaw detection equipment according to claim 1, characterized in that: It also includes a recycling assembly (5) installed on the front side of the connecting seat (21). The recycling assembly (5) includes a recycling box (51), an inclined plate (53), a limiting rod (54), and a moving plate (55). The recycling box (51) is provided on the front side of the connecting seat (21). Inclined plates (53) are symmetrically installed on the upper left and right sides of the recycling box (51). The recycling box (51) is a square box with an opening at the top. The side vertical plate of the recycling box (51) near the front surface of the connecting seat (21) is opened inward to connect with the connecting seat. (21) The rear end of the T-shaped movable plate (55) is located in the cavity inside the connecting seat (21) and the front end of the movable plate (55) passes through the connecting seat (21) to fix the groove surface of the recycling box (51). The front surface of the connecting seat (21) is provided with a vertical sliding groove that matches the movable plate (55). A limiting rod (54) is slidably connected in the through hole opened on the rear surface of the movable plate (55). Both ends of the limiting rod (54) pass through the movable plate (55) and are connected to the connecting seat (21).

8. The buried pipeline flaw detection equipment according to claim 7, characterized in that: The recycling assembly (5) also includes a rotating rod (56), a rotating wheel (57), a pull rope (58), and a drive motor (59). The upper and lower parts of the internal cavity of the connecting seat (21) are symmetrically mounted with horizontal rotating rods (56). The outer surfaces of the two rotating rods (56) are symmetrically mounted with rotating wheels (57). One end of the pull rope (58) is fixedly wound around the surface of the lower rotating wheel (57). The other end of the pull rope (58) passes around the surface of the upper rotating wheel (57) and is connected to the moving plate (55). The drive motor (59) is mounted on one side surface of the connecting seat (21). The output end of the drive motor (59) passes through the connecting seat (21) and is connected to the lower rotating rod (56).

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