Intelligent detection equipment for pipeline corrosion and detection method thereof

Abstract

The invention discloses intelligent pipeline corrosion detection equipment and a detection method thereof, and relates to the technical field of pipeline corrosion detection.The intelligent pipeline corrosion detection equipment comprises a moving trolley, a central controller, a bearing mechanism, a walking mechanism, a rotating mechanism, a supporting mechanism, a pipeline magnetic flux leakage probe and an illumination testing mechanism; the bearing mechanism is movably arranged on the moving vehicle, the walking mechanism is installed on the outer wall of the bearing mechanism, the supporting mechanism is slidably clamped to one end of the rotating mechanism, the pipeline magnetic flux leakage probe is installed at one end of the supporting mechanism, and the illumination testing mechanism is installed at the other end of the supporting mechanism. By means of the arrangement mode that the bearing mechanism, the walking mechanism and the rotating mechanism are matched, the pipeline corrosion condition and the ultraviolet aging resistance can be detected at the same time, the detection efficiency is improved, the device can adapt to pipelines with different pipe diameters, the device is suitable for stably detecting different angle positions of the inner wall of the pipeline, and the detection precision of the inner wall of the pipeline is improved.

Description

Technical Field

[0001] This invention relates to the field of pipeline corrosion detection technology, and in particular to an intelligent pipeline corrosion detection device and its detection method. Background Technology

[0002] Pipelines, as vital facilities for transporting liquids, gases, and other media, are widely used in petroleum, chemical, urban water supply, and gas industries. However, due to long-term exposure to media corrosion and environmental erosion, pipelines are prone to corrosion and cracking, which can lead to leaks or even safety accidents in severe cases. Therefore, regular corrosion inspections of pipelines are essential.

[0003] Traditional pipeline inspection methods mainly rely on manual inspections or fixed inspection equipment, which suffer from low inspection efficiency, limited coverage, and difficulty in penetrating narrow or complex pipelines. Furthermore, while existing inspection robots can inspect deep within pipelines, they can only inspect the same horizontal direction at the deepest point. This results in a single inspection point on the pipeline's inner wall, hindering multi-angle corrosion detection and affecting the stability of corrosion detection. Therefore, the overall accuracy of pipeline inspection still needs improvement. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent detection device and method for pipeline corrosion to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent detection device for pipeline corrosion, comprising: Mobile vehicle; A central controller, which is mounted on the top of the mobile vehicle; A support mechanism, which is movably mounted on a mobile vehicle; A traveling mechanism is installed on the outer wall of the supporting mechanism and is used for the movement of the supporting mechanism within the pipeline. A rotating mechanism, which is mounted at one end of the bearing mechanism; A support mechanism is slidably engaged with one end of a rotating mechanism; A pipeline magnetic flux leakage probe, which is installed at one end of a support mechanism, is used for corrosion detection of pipelines. A light exposure testing mechanism is installed at the other end of a support mechanism and is used for light exposure testing of pipelines.

[0006] Preferably, the load-bearing mechanism includes: The support tube is arranged in the form of a circular tube; A connecting plate, which is fixed to one end of the bearing tube; A servo motor, which is fixed to the inner cavity of the bearing tube; A first gear and a rotating shaft, wherein the first gear is fixedly inserted into the outer wall of the rotating shaft, the rotating shaft is connected to the output end of the servo motor, and one end of the rotating shaft is rotatably inserted into the inner wall of the connecting plate through a bearing.

[0007] Preferably, the walking mechanism includes: The driving wheel is mounted on the bottom of the support tube; Auxiliary components, a plurality of which are fixed in an arc shape at equal intervals to the outer wall of the bearing tube.

[0008] Preferably, the auxiliary component includes: A fixing plate, which is fixed to the outer wall of the bearing pipe; Auxiliary rods, two of which are rotatable at one end of a fixed plate via pins; An auxiliary wheel, which rotates at one end of two adjacent auxiliary rods via a pin; A locking bolt is threaded between the fixed plate and the adjacent auxiliary rod, and the locking bolt is used to lock the angle between the auxiliary rod and the fixed plate.

[0009] Preferably, the rotating mechanism includes: A connecting component, which is rotatably disposed in the middle of the connecting disk; A pushing component, wherein the pushing component is disposed in the middle of the connecting component; A locking block is installed at one end of the pushing component and is used to support the position of the mechanism. A rotating rod, which is fixed to one end of the connecting assembly; The second gear is fixed to one end of the rotating rod and meshes with the outer wall of the first gear.

[0010] Preferably, the connection component includes: A connector, which is fixedly connected to the other end of the rotating rod; A sliding hole is formed in the middle of the connector, and the support mechanism is disposed in the inner cavity of the sliding hole; Ball bearings, a plurality of said ball bearings being equidistantly embedded in the inner cavity of the sliding hole.

[0011] Preferably, the actuating component includes: A movable groove is provided at the end of the connector that is furthest from the bearing pipe; An electric telescopic rod, wherein the electric telescopic rod is fixed to one side of the inner wall of the movable groove; T-block, the T-block being fixed to the telescopic end of the electric telescopic rod; A push-pull block slides within the inner cavity of a movable groove. One side of the push-pull block has a T-shaped groove structure that mates with a T-shaped block. The push-pull block is fixedly connected to the middle of a locking block. A retaining ring is fixed to the middle of the push-pull block; A first compression spring is sleeved on the outer wall of the push-pull block, and the first compression spring is fixedly connected to the outer wall of the fixing ring; The slide plate slides against one end of the inner wall of the movable groove, and one end of the first compression spring is fixedly connected to the outer wall of the slide plate.

[0012] Preferably, the support mechanism includes: A support rod, which is slidably connected to the middle of a sliding hole; The card slots are equidistantly provided on the outer wall of the support rod, and the card block is engaged with the inner cavity of the card slot. A positioning ring, which is fixed to one end of the support rod; The second compression spring is sleeved on one end of the support rod; The positioning tube is fixed to one end of the pipeline magnetic flux leakage probe, the second compression spring is fixed between the positioning tube and the positioning ring, the support rod is slidably inserted into the inner cavity of the positioning tube, and the light illumination testing mechanism is installed at the other end of the support rod.

[0013] Preferably, the illumination testing mechanism includes: A rigid block, which is fixed to the other end of the support rod; An embedding groove is provided at one end of the rigid block; A groove, wherein the groove is formed in the middle of the inserting groove; A camera, which is fixed to the inner wall of the groove; An ultraviolet lamp, which is a ring structure and fixed to the inner wall of an embedded groove, is used for ultraviolet irradiation of the inner wall of the pipe. A wear-resistant pad, which is fixed to one end of a rigid block.

[0014] This invention also provides an intelligent detection method for pipeline corrosion, including the following specific steps: Step 1: Adjust the locking bolts according to the diameter of the pipe to be tested so that the auxiliary wheel can roll in close contact with the inner wall of the pipe. Then, according to the diameter of the pipe to be tested, pull the locking block to release the locking restriction on the support rod, so that the magnetic flux leakage probe can get close to the inner wall of the pipe to be tested. Step 2: Place the carrying mechanism at one end of the pipeline to be inspected, drive the driving wheels on the traveling mechanism to move the carrying tube to the position to be inspected on the pipeline, start the electric telescopic rod to push the push-pull block, and under the locking constraint of the block and the inner wall of the slot, the support rod can be pushed, and the pipeline magnetic flux leakage probe can fit against the inner wall of the pipeline to be inspected for detection. By detecting the change of magnetic field on the pipeline wall, corrosion defects can be identified. It can detect the degree of corrosion of buried steel pipelines through non-magnetic coatings and transmit the detection results to the central controller. By retracting the electric telescopic rod, the pipeline magnetic flux leakage probe is driven away from the inner wall of the pipeline, and the servo motor is driven so that the first gear drives the second gear to rotate, so that the connector can drive the pipeline magnetic flux leakage probe on the support rod to rotate. The pipeline magnetic flux leakage probe can perform corrosion resistance detection on different parts of the pipeline. Step 3: When a light resistance test is required on the pipeline, the rigid block is moved close to the inner wall of the pipeline to be tested, according to the diameter of the pipeline. When the carrier pipe is moved to the test position, the electric telescopic rod is driven so that the rigid block can fit against the inner wall of the pipeline to be tested. The ultraviolet lamp is then turned on to conduct an ultraviolet light test on the inner wall of the pipeline. The powdering and blistering phenomena of the inner wall of the pipeline are photographed at the test position using a camera.

[0015] The technical effects and advantages of this invention are as follows: (1) The present invention utilizes the combination of a bearing mechanism, a walking mechanism and a rotating mechanism to simultaneously detect pipeline corrosion and UV aging resistance through a pipeline magnetic flux leakage probe and an illumination testing mechanism, thereby improving detection efficiency and facilitating multi-functional integrated detection of pipelines. The walking mechanism can adapt to pipelines of different diameters, ensuring stable movement of the equipment. Furthermore, through the connection between the bearing mechanism and the rotating mechanism, the pipeline magnetic flux leakage probe and the illumination testing mechanism can rotate at different angles, making it suitable for stable detection of different angle positions of the inner wall of the pipeline and improving the detection accuracy of the inner wall of the pipeline. (2) The present invention utilizes the combination of support mechanism and rotation mechanism, so that the support mechanism adopts the elastic design of second compression spring to avoid hard contact between the detection probe and the inner wall of the pipe, thus extending the service life of the equipment. Through the rotation mechanism and servo motor drive gear transmission, the support mechanism is rotated, so that the detection probe can cover different areas of the inner wall of the pipe, avoiding detection blind spots and enabling flexible coverage of detection. The wear-resistant pad on the light illumination test mechanism also avoids wear on the rigid block and improves the service life of the equipment. (3) The present invention utilizes a snap-fit ​​structure with a combination of a snap-fit ​​block and a snap-fit ​​slot on the support mechanism, which facilitates quick disassembly and maintenance. It also facilitates the pushing of the support rod, so that the magnetic flux leakage probe and the light-emitting test mechanism will not come into contact with the inner wall of the pipe when they move. However, the magnetic flux leakage probe and the light-emitting test mechanism can come into contact with the inner wall of the pipe during testing, which improves the accuracy of corrosion detection and light resistance detection of the inner wall of the pipe. The electric telescopic rod and the first compression spring make it easy to pull the snap-fit ​​block and easy to adjust the support rod over a wide range of distances, which improves the stability of the magnetic flux leakage probe and the light-emitting test mechanism when they are used for testing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of the bearing tube of the present invention.

[0018] Figure 3 This is a partial cross-sectional view of the top surface of the bearing tube of the present invention.

[0019] Figure 4 This is a top view schematic diagram of the support rod structure of the present invention.

[0020] Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0021] Figure 6 For the present invention Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0022] Figure 7 This is a top-view cross-sectional structural diagram of the rigid block of the present invention.

[0023] Figure 8 This is a side cross-sectional view of the push-pull block of the present invention.

[0024] In the diagram: 1. Mobile vehicle; 2. Central controller; 3. Bearing mechanism; 31. Bearing pipe; 32. Connecting plate; 33. Servo motor; 34. First gear; 35. Rotating shaft; 4. Walking mechanism; 41. Walking drive wheel; 42. Auxiliary component; 421. Fixing plate; 422. Auxiliary rod; 423. Auxiliary wheel; 424. Locking bolt; 5. Rotating mechanism; 51. Connecting component; 511. Connector; 512. Sliding hole; 513. Ball bearing; 52. Pushing component; 521. Movable groove; 5 22. Electric telescopic rod; 523. T-block; 524. Push-pull block; 525. Fixing ring; 526. First compression spring; 527. Slide plate; 53. Locking block; 54. Rotating rod; 55. Second gear; 6. Support mechanism; 61. Support rod; 62. Slot; 63. Positioning ring; 64. Second compression spring; 65. Positioning tube; 7. Pipe magnetic flux leakage probe; 8. Light illumination testing mechanism; 81. Rigid block; 82. Embedding groove; 83. Groove; 84. Camera; 85. Ultraviolet lamp; 86. Wear-resistant pad. Detailed Implementation

[0025] 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, those skilled in the art who have not made any innovative embodiments are all within the scope of protection of the present invention.

[0026] This invention provides, for example Figure 1-8 The intelligent pipeline corrosion detection device shown includes a mobile vehicle 1, a central controller 2, a load-bearing mechanism 3, a walking mechanism 4, a rotating mechanism 5, a supporting mechanism 6, a pipeline magnetic flux leakage probe 7, and a light exposure testing mechanism 8. The central controller 2 is installed on the top of the mobile vehicle 1. The load-bearing mechanism 3 is movably mounted on the mobile vehicle 1. The walking mechanism 4 is installed on the outer wall of the load-bearing mechanism 3 and is used for moving the load-bearing mechanism 3 inside the pipeline. The rotating mechanism 5 is installed at one end of the load-bearing mechanism 3. The supporting mechanism 6 is slidably engaged with one end of the rotating mechanism 5. The pipeline magnetic flux leakage probe 7 is installed at one end of the supporting mechanism 6 and is used for pipeline corrosion detection. The light exposure testing mechanism 8 is installed at the other end of the supporting mechanism 6 and is used for light exposure resistance testing of the pipeline.

[0027] The supporting mechanism 3 includes a supporting tube 31, a connecting plate 32, a servo motor 33, a first gear 34, and a rotating shaft 35. The supporting tube 31 is a circular tube. When not in use, the supporting tube 31 can be embedded in the mobile vehicle 1 for easy movement of the equipment. The connecting plate 32 is fixed to one end of the supporting tube 31. The servo motor 33 is fixed to the inner cavity of the supporting tube 31. The first gear 34 is fixedly inserted into the outer wall of the rotating shaft 35. The rotating shaft 35 is connected to the output end of the servo motor 33. One end of the rotating shaft 35 is rotatably inserted into the inner wall of the connecting plate 32 through a bearing. The servo motor 33 is electrically connected to an external power supply through an external central controller 2. Under the control of the central controller 2, the output end of the servo motor 33 can rotate in both forward and reverse directions, which facilitates the stable rotation of the first gear 34.

[0028] In addition, the walking mechanism 4 includes a walking drive wheel 41 and auxiliary components 42. The walking drive wheel 41 is installed at the bottom of the support pipe 31. The walking drive wheel 41 is an existing walking structure of a pipe inspection robot with a drive source, used to support and move the support pipe 31, so that the support pipe 31 can move to the depth of the pipe for corrosion detection. Multiple auxiliary components 42 are fixed to the outer wall of the support pipe 31 in an arc shape at equal intervals.

[0029] Specifically, the auxiliary component 42 includes a fixed plate 421, auxiliary rods 422, auxiliary wheels 423, and locking bolts 424. The fixed plate 421 is fixed to the outer wall of the bearing pipe 31. The two auxiliary rods 422 rotate at one end of the fixed plate 421 via pins. The auxiliary wheels 423 rotate at one end of two adjacent auxiliary rods 422 via pins. The locking bolts 424 are threaded between the fixed plate 421 and the adjacent auxiliary rods 422. The locking bolts 424 are used to lock the angle between the auxiliary rods 422 and the fixed plate 421, so that the auxiliary wheels 423 can roll at different angles with different inner walls of the pipe, thereby improving the stability of the bearing pipe 31 moving in the inner cavity of the pipe.

[0030] Furthermore, the rotating mechanism 5 includes a connecting component 51, a pushing component 52, a locking block 53, a rotating rod 54, and a second gear 55. The connecting component 51 is rotatably disposed in the middle of the connecting disk 32, the pushing component 52 is disposed in the middle of the connecting component 51, the locking block 53 is installed at one end of the pushing component 52, and the locking block 53 is used to lock the position of the supporting mechanism 6. The rotating rod 54 is fixed to one end of the connecting component 51, and the second gear 55 is fixed to one end of the rotating rod 54. The second gear 55 meshes with the outer wall of the first gear 34, so that the first gear 34 can drive the second gear 55 to rotate, so that the connecting component 51 can rotate in the middle of the connecting disk 32, thereby driving the rotation of the supporting mechanism 6, so that the pipeline magnetic flux leakage probe 7 and the light exposure testing mechanism 8 at the end of the supporting mechanism 6 can change position, which is convenient for corrosion detection and light exposure testing of different areas of the pipeline.

[0031] Specifically, the connecting component 51 includes a connector 511, a sliding hole 512, and ball bearings 513. The connector 511 is fixedly connected to the other end of the rotating rod 54. The sliding hole 512 is opened in the middle of the connector 511. The support mechanism 6 is disposed in the inner cavity of the sliding hole 512. Multiple ball bearings 513 are equidistantly embedded in the inner cavity of the sliding hole 512.

[0032] The pushing assembly 52 includes a movable groove 521, an electric telescopic rod 522, a T-block 523, a push-pull block 524, a fixing ring 525, a first compression spring 526, and a sliding plate 527. The movable groove 521 is located at the end of the connector 511 away from the bearing tube 31. The electric telescopic rod 522 is fixed to one side of the inner wall of the movable groove 521 and is electrically connected to an external power source via an external central controller 2. The T-block 523 is fixed to the telescopic end of the electric telescopic rod 522, and the electric telescopic rod 522 drives the T-block 523 to move telescopically. The push-pull block 524 slides in the inner cavity of the movable groove 521. One side of the push-pull block 524 has a T-slot structure that mates with the T-block 523. The T-block 523 and the inner cavity of the T-slot on one side of the push-pull block 524 are slidably interlocked. The push-pull block 524 and the locking block... The middle part of 53 is fixedly connected. The movement of T-block 523 facilitates the extension and retraction of the push-pull block 524 and the locking block 53, so that the locking block 53 can drive the support mechanism 6 to move within a small range. This allows the pipeline magnetic flux leakage probe 7 or the light illumination testing mechanism 8 to fit against the inner wall of the pipeline to be tested without affecting the movement of the pipeline magnetic flux leakage probe 7 or the light illumination testing mechanism 8 inside the pipeline. The fixing ring 525 is fixed to the middle part of the push-pull block 524. The first compression spring 526 is sleeved on the outer wall of the push-pull block 524 and is fixedly connected to the outer wall of the fixing ring 525. The sliding plate 527 slides against one end of the inner wall of the movable groove 521. One end of the first compression spring 526 is fixedly connected to the outer wall of the sliding plate 527. Through the elasticity of the first compression spring 526, the locking block 53 is pulled, so that the first compression spring 526 is compressed, which facilitates the easy assembly and disassembly of the support mechanism 6.

[0033] Furthermore, the support mechanism 6 includes a support rod 61, a slot 62, a positioning ring 63, a second compression spring 64, and a positioning tube 65. The support rod 61 is slidably connected to the middle of the sliding hole 512, and the outer wall of the support rod 61 is rolledly connected to the outer wall of multiple balls 513, which facilitates the smooth movement of the support rod 61 within the cavity of the sliding hole 512. Multiple slots 62 are equidistantly opened on the outer wall of the support rod 61, and the locking block 53 is engaged with the inner cavity of the slot 62. The positioning ring 63 is fixed to one end of the support rod 61, and the second compression spring 64 is sleeved on the support rod 61. At one end of the 1, the positioning tube 65 is fixed to one end of the pipeline magnetic flux leakage probe 7, the second compression spring 64 is fixed between the positioning tube 65 and the positioning ring 63, the support rod 61 is slidably inserted into the inner cavity of the positioning tube 65, and the light illumination testing mechanism 8 is installed at the other end of the support rod 61. Through the elasticity of the second compression spring 64, the pipeline magnetic flux leakage probe 7 at the end of the positioning tube 65 is elastically supported, avoiding the pipeline magnetic flux leakage probe 7 from being forcibly squeezed and adhered to the inner wall of the pipeline, thereby improving the service life and operational stability of the pipeline magnetic flux leakage probe 7.

[0034] Meanwhile, the light irradiation testing mechanism 8 includes a rigid block 81, an embedding groove 82, a recess 83, a camera 84, an ultraviolet lamp 85, and a wear-resistant pad 86. The rigid block 81 is fixed to the other end of the support rod 61. The embedding groove 82 is opened at one end of the rigid block 81, and the recess 83 is opened in the middle of the embedding groove 82. The camera 84 is fixed to the inner wall of the recess 83. The ultraviolet lamp 85 is fixed to the inner wall of the embedding groove 82 in a ring structure. The ultraviolet lamp 85 is used for ultraviolet irradiation of the inner wall of the pipe. The wear-resistant pad 86 is fixed to one end of the rigid block 81. Both the ultraviolet lamp 85 and the camera 84 are connected to the central controller 2, so that the central controller 2 can electrically control the ultraviolet lamp 85 and the camera 84. This allows the ultraviolet lamp 85 to irradiate the inner wall of the pipe for a long time to conduct light resistance testing. At the same time, the camera 84 can take pictures of the inner wall of the tested pipe, which facilitates the quick identification of powdering and blistering phenomena on the inner wall of the pipe and improves the convenience of testing.

[0035] This invention also provides an intelligent detection method for pipeline corrosion, including the following specific steps: According to the diameter of the pipe to be tested, adjust the locking bolt 424 so that its auxiliary wheel 423 can roll in contact with the inner wall of the pipe. According to the diameter of the pipe to be tested, pull the clamp 53 to release the clamping restriction on the support rod 61 so that the pipe leakage magnetic probe 7 can get close to the inner wall of the pipe to be tested. The carrying mechanism 3 is placed at one end of the pipeline to be inspected. The driving drive wheel 41 on the walking mechanism 4 is driven so that the carrying pipe 31 can move to the position to be inspected on the pipeline. The electric telescopic rod 522 is activated so that it can push the push-pull block 524. Under the locking limitation of the locking block 53 and the inner wall of the locking groove 62, the support rod 61 can be pushed. The pipeline magnetic leakage probe 7 can fit against the inner wall of the pipeline to be inspected. Corrosion defects are identified by detecting the change of magnetic field on the pipeline wall. The degree of corrosion of buried steel pipeline can be detected through the non-magnetic coating. The detection results are transmitted to the central controller 2. The retraction of the electric telescopic rod 522 drives the pipeline magnetic leakage probe 7 away from the inner wall of the pipeline. The servo motor 33 is driven so that the first gear 34 drives the second gear 55 to rotate. The connector 511 can drive the pipeline magnetic leakage probe 7 on the support rod 61 to rotate. The pipeline magnetic leakage probe 7 can perform corrosion resistance detection on different parts of the pipeline. Similarly, when a pipeline needs to be tested for its resistance to light, the rigid block 81 is moved to a position close to the inner wall of the pipeline to be tested, according to the diameter of the pipeline. When the bearing pipe 31 is moved to the test position, the electric telescopic rod 522 is driven so that the rigid block 81 can fit against the inner wall of the pipeline to be tested, and the ultraviolet lamp 85 is turned on to conduct ultraviolet light test on the inner wall of the pipeline. The camera 84 is used to take pictures of the powdering and blistering phenomena of the inner wall of the pipeline at the test position.

[0036] Finally, it should be noted that the above 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. An intelligent detection device for pipeline corrosion, characterized in that, include: Mobile vehicle (1); A central controller (2) is mounted on top of the mobile vehicle (1); The supporting mechanism (3) is movably mounted on the mobile vehicle (1); The walking mechanism (4) is installed on the outer wall of the bearing mechanism (3) and is used for the movement of the bearing mechanism (3) within the pipe; Rotating mechanism (5), which is installed at one end of the bearing mechanism (3); Support mechanism (6), which is slidably engaged with one end of rotating mechanism (5); Pipeline magnetic flux leakage probe (7), the pipeline magnetic flux leakage probe (7) is installed at one end of the support mechanism (6), the pipeline magnetic flux leakage probe (7) is used for pipeline corrosion detection; Light testing mechanism (8) is installed at the other end of support mechanism (6) and is used for light resistance testing of pipeline.

2. The intelligent detection device for pipeline corrosion according to claim 1, characterized in that, The supporting mechanism (3) includes: The bearing tube (31) is arranged in the form of a circular tube; A connecting plate (32) is fixed to one end of a bearing tube (31); Servo motor (33), the servo motor (33) is fixed to the inner cavity of the bearing tube (31); The first gear (34) and the rotating shaft (35) are fixedly inserted into the outer wall of the rotating shaft (35). The rotating shaft (35) is connected to the output end of the servo motor (33) for transmission. One end of the rotating shaft (35) is rotatably inserted into the inner wall of the connecting plate (32) through a bearing.

3. The intelligent detection device for pipeline corrosion according to claim 2, characterized in that, The walking mechanism (4) includes: The driving wheel (41) is mounted on the bottom of the bearing tube (31); Auxiliary components (42), a plurality of the auxiliary components (42) are fixed in an arc shape at equal intervals to the outer wall of the bearing tube (31).

4. The intelligent detection device for pipeline corrosion according to claim 3, characterized in that, The auxiliary component (42) includes: A fixing plate (421) is fixed to the outer wall of the bearing pipe (31); Auxiliary rods (422), two of the auxiliary rods (422) are rotatable at one end of the fixed plate (421) by means of pins; An auxiliary wheel (423) is rotatable at one end of two adjacent auxiliary rods (422) via a pin. A locking bolt (424) is threaded between a fixed plate (421) and an adjacent auxiliary rod (422). The locking bolt (424) is used to lock the angle between the auxiliary rod (422) and the fixed plate (421).

5. The intelligent detection device for pipeline corrosion according to claim 2, characterized in that, The rotating mechanism (5) includes: A connecting component (51) is rotatably disposed in the middle of the connecting disk (32); A pushing component (52) is disposed in the middle of the connecting component (51); A locking block (53) is installed at one end of the pushing component (52) and is used to lock the position of the support mechanism (6); Rotating rod (54), the rotating rod (54) is fixed to one end of the connecting assembly (51); The second gear (55) is fixed to one end of the rotating rod (54) and meshes with the outer wall of the first gear (34).

6. The intelligent detection device for pipeline corrosion according to claim 5, characterized in that, The connection component (51) includes: Connector (511), which is fixedly connected to the other end of the rotating rod (54); A sliding hole (512) is formed in the middle of the connector (511), and the support mechanism (6) is disposed in the inner cavity of the sliding hole (512); Balls (513), a plurality of said balls (513) are equidistantly embedded in the inner cavity of the sliding hole (512).

7. The intelligent detection device for pipeline corrosion according to claim 6, characterized in that, The actuation component (52) includes: The movable groove (521) is located at the end of the connector (511) away from the bearing tube (31); An electric telescopic rod (522) is fixed to one side of the inner wall of the movable groove (521); T-block (523), the T-block (523) being fixed to the telescopic end of the electric telescopic rod (522); Push-pull block (524), which slides in the inner cavity of the movable groove (521), and a T-shaped groove structure that cooperates with the T-shaped block (523) is provided on one side of the push-pull block (524). The push-pull block (524) is fixedly connected to the middle of the locking block (53). A retaining ring (525) is fixed to the middle of the push-pull block (524); The first compression spring (526) is sleeved on the outer wall of the push-pull block (524) and is fixedly connected to the outer wall of the fixing ring (525); The slide plate (527) slides against one end of the inner wall of the movable groove (521), and one end of the first compression spring (526) is fixedly connected to the outer wall of the slide plate (527).

8. The intelligent detection device for pipeline corrosion according to claim 6, characterized in that, The support mechanism (6) includes: Support rod (61), which is slidably connected to the middle of sliding hole (512); The slots (62) are equidistantly provided on the outer wall of the support rod (61), and the locking block (53) is engaged with the inner cavity of the slot (62). A positioning ring (63) is fixed to one end of a support rod (61); The second compression spring (64) is sleeved on one end of the support rod (61); The positioning tube (65) is fixed to one end of the pipeline magnetic flux leakage probe (7), the second compression spring (64) is fixed between the positioning tube (65) and the positioning ring (63), the support rod (61) is slidably inserted into the inner cavity of the positioning tube (65), and the light illumination testing mechanism (8) is installed at the other end of the support rod (61).

9. The intelligent detection device for pipeline corrosion according to claim 8, characterized in that, The illumination testing mechanism (8) includes: A rigid block (81) is fixed to the other end of a support rod (61); An embedding groove (82) is provided at one end of the rigid block (81); A groove (83) is formed in the middle of an insert groove (82); Camera (84), the camera (84) is fixed to the inner wall of the groove (83); Ultraviolet lamp (85), the ultraviolet lamp (85) is fixed in a ring structure to the inner wall of the embedded groove (82), the ultraviolet lamp (85) is used for ultraviolet light irradiation of the inner wall of the pipe; A wear-resistant pad (86) is fixed to one end of a rigid block (81).

10. A smart detection method for pipeline corrosion according to any one of claims 1-9, characterized in that, The specific usage steps are as follows: Step 1: Adjust the locking bolt (424) according to the diameter of the pipe to be tested so that the auxiliary wheel (423) can roll in contact with the inner wall of the pipe. According to the diameter of the pipe to be tested, pull the clamp (53) to release the clamping restriction on the support rod (61) so that the pipe leakage magnetic probe (7) can get close to the inner wall of the pipe to be tested. Step 2: Place the bearing mechanism (3) at one end of the pipe to be tested, drive the driving wheel (41) on the walking mechanism (4) so ​​that its bearing tube (31) can move to the position to be tested on the pipe, start the electric telescopic rod (522) so that it can push the push-pull block (524). Under the locking constraint of the card block (53) and the inner wall of the card slot (62), its support rod (61) can be pushed, and the pipe magnetic leakage probe (7) can fit against the inner wall of the pipe to be tested. The magnetic field change on the pipe wall is detected to identify the pipe. The corrosion defects can be detected through the non-magnetic coating to detect the degree of corrosion of buried steel pipes and transmit the detection results to the central controller (2). By retracting the electric telescopic rod (522), the magnetic flux leakage probe (7) of the pipe is driven away from the inner wall of the pipe, and the servo motor (33) is driven to rotate the first gear (34) and the second gear (55) is driven to rotate, so that the connector (511) can drive the magnetic flux leakage probe (7) on the support rod (61) to rotate. The magnetic flux leakage probe (7) of the pipe can perform corrosion resistance detection on different parts of the pipe. Step 3: When it is necessary to test the light resistance of the pipeline, according to the diameter of the pipeline, make its rigid block (81) move to a position close to the inner wall of the pipeline to be tested. When the bearing pipe (31) is moved to the test position, drive the electric telescopic rod (522) so that its rigid block (81) can fit with the inner wall of the pipeline to be tested, and turn on the ultraviolet lamp (85) to test the ultraviolet light on the inner wall of the pipeline. Then, use the camera (84) to take pictures of the powdering and bubbling phenomenon of the inner wall of the pipeline at the test position.

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