Pipeline anti-corrosion layer detection device

Abstract

The invention discloses a pipeline anti-corrosion layer detection device, and relates to the technical field of anti-corrosion layer detection, the pipeline anti-corrosion layer detection device comprises a main body, the main body comprises a supporting pipe, the inner wall of the supporting pipe is slidably sleeved with two sets of supports, and the inner walls of the two sets of supports are each rotatably sleeved with a set of transmission shaft; the tail ends of the two transmission shafts are each fixedly connected with a connector, and the two ends of the supporting pipe are each provided with a detection mechanism. According to the invention, the detector is supported by multiple groups of first sleeves, second sleeves and third sleeves, so that the detector is close to the inner wall of the pipeline, the detector can accurately detect the pipeline shaft, and secondary detection can be carried out on the pipeline in the detection process, so that the accuracy in the detection process is further guaranteed, and the detection efficiency is improved. And the detection device is placed in the pipeline for detection, the pipeline does not need to be dismantled, the pipeline does not need to be dismantled, welding of the pipeline after detection is avoided, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of anti-corrosion layer detection, in particular to a pipeline anti-corrosion layer detection device. Background Art

[0002] Pipeline anti-corrosion layer is a kind of protection technology to prevent pipeline from being corroded by soil, air and conveying medium (oil, natural gas, etc.). Most pipelines for conveying oil and gas are in complex soil environment, and the conveyed medium is also corrosive, so the inner and outer walls of the pipeline may be corroded. Once the pipeline is corroded and perforated, it will cause oil and gas leakage, which will not only interrupt transportation, but also pollute the environment, and may even cause fire and cause harm.

[0003] An existing patent (application publication number: CN118858370A) discloses a pipeline anti-corrosion layer detection device, including a supporting device, the supporting device including a supporting frame, the top inner wall of the supporting frame is fixedly connected with a connecting shaft, a fixing frame is arranged at the axis of the connecting shaft, the outer wall of the fixing frame is fixedly connected to the connecting shaft, the inner wall of the fixing frame is provided with a groove, a detection mechanism is arranged inside the fixing frame, the outer wall of the fixing frame is fixedly connected with a first connecting block, a first sliding block is arranged on the top of the first connecting block, after clamping the pipeline through an adjusting component, the outer wall of the pipeline is detected through the detection mechanism, and at the same time, the first motor moves the pipeline through the first auxiliary roller, thereby avoiding the dead angle area between the pipeline and the adjusting component, and improving the working efficiency of the anti-corrosion layer detection of the outer wall of the pipeline.

[0004] However, the above technical scheme still has certain defects. In the process of detecting the anti-corrosion layer of the pipeline, the above technical scheme needs to dismantle the pipeline section by section, and then place the sections on the detection device for detection. During the detection, the detector detects from the outside of the pipeline. When the anti-corrosion coating inside the pipeline is detected, the detection result is not accurate enough. Therefore, a pipeline anti-corrosion layer detection device is proposed. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a pipeline anti-corrosion layer detection device to solve the technical problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pipeline anti-corrosion layer detection device, comprising a main body, the main body comprising a support tube, the inner wall of the support tube is slidably sleeved with two groups of brackets, the inner walls of the two groups of brackets are respectively rotatably sleeved with a group of transmission shafts, the ends of the two groups of transmission shafts are respectively fixedly connected with a group of connectors, the two ends of the support tube are respectively provided with a group of detection mechanisms, and the two groups of detection mechanisms are respectively connected to a group of connectors; The detection mechanism includes an installation component, which includes a fixed plate, which is attached to the end of the support tube, and the side wall of the fixed plate is fixedly connected to multiple groups of hooks, and the multiple groups of hooks extend to the inner wall of the support tube. The inner wall of the fixed plate is rotatably connected with a rotating piece, and the rotating piece is fixedly connected to a scanning component on one side inside the support tube. The scanning component includes a connecting piece, which is located inside the support tube, and the connecting piece is fixedly connected to the side wall of the rotating piece. The connecting piece is sleeved on the outside of the transmission shaft, and the side wall of the rotating piece is hinged to multiple groups of extension rods, and the extension rods extend to the outside of the support tube through the rotating piece. The ends of each group of extension rods are respectively hinged with a group of first sleeves, the inner wall of the first sleeve is slidably sleeved with a second sleeve, and the inner wall of the second sleeve is slidably sleeved with a third sleeve, the end of the third sleeve extends to the outside of the second sleeve, and the end of the third sleeve is fixedly connected with a detector.

[0007] As a preferred technical solution, two groups of first motors are fixedly connected to the outer wall of the support tube, and the output end of each group of the first motors is fixedly connected to a group of main drive bevel gears, and the main drive bevel gears extend to the inner wall of the support tube, and each group of the transmission shafts is fixedly connected to a group of driven bevel gears at one end away from the connecting head, and the two groups of driven bevel gears are meshed with the two groups of main drive bevel gears at the same time.

[0008] As a preferred technical solution, the inner wall of the rotating piece is threadedly connected with a threaded column, and one end of the threaded column located inside the support tube is provided with a groove that matches the connecting head, and the rotation direction of the transmission shaft matches the thread of the threaded column.

[0009] As a preferred technical solution, a reset cable is fixedly connected to the inner wall of the third sleeve, and the end of the reset cable passes through the inner wall of the connecting plate. A stretch spring is provided on the inner wall of the second sleeve, and the stretch spring is sleeved on the outside of the reset cable. One end of the stretch spring is fixedly connected to the inner wall of the third sleeve, and the other end of the stretch spring is fixedly connected to the inner wall of the first sleeve. A plurality of guide tubes are fixedly connected to the side wall of the connecting plate, and the plurality of guide tubes are respectively sleeved on the outer wall of a group of reset cables.

[0010] As an optimal technical solution, two groups of adjustment components are provided on the inner wall of the support tube, and the adjustment component includes an adjustment sleeve, and the adjustment sleeve is slidably sleeved on the outer wall of a group of transmission shafts, and the adjustment sleeve is rotatably connected with a connecting ring on the side that fits with the connecting plate, and the connecting ring is fixedly connected to the ends of multiple groups of reset cables on the same side, and the side walls of each group of the adjustment sleeves are respectively fixedly connected to multiple groups of push rods, and the outer wall of the support tube is fixedly connected to multiple groups of limit blocks, and the inner wall of each group of the limit blocks is respectively fixedly connected to a group of spring sheets, one end of the spring sheet is fixedly connected to the inner wall of the limit block, and the other end of the spring sheet is fixedly connected to the limit pin, the end of the limit pin extends to the outside of the limit block, and the limit pin is slidably connected to the inner wall of the limit block.

[0011] As a preferred technical solution, the outer wall of the support tube is fixedly connected to multiple groups of power mechanisms, each group of the power mechanisms includes a group of locking components, the locking components include a limit bar, the limit bar is fixedly connected to the outer wall of the support tube, the inner sliding connection of the limit bar is a sliding rod extending to the outside of the limit bar, the end of the sliding rod is fixedly connected to a convex rod, the side wall of the limit bar is fixedly connected to multiple groups of limit spring plates, and each group of the limit spring plates is located next to a group of tooth blocks.

[0012] As a preferred technical solution, the side walls of the limit strip are rotatably connected to multiple groups of rotating shafts, and the outer walls of each group of rotating shafts are fixedly sleeved with a group of toothed discs. The side walls of the sliding rod are fixedly connected to multiple groups of tooth blocks, and each group of tooth blocks is respectively engaged with a group of toothed discs.

[0013] As a preferred technical solution, an adjustment tube is rotatably sleeved on the outer wall of the support tube near the middle position, and multiple groups of sliding sleeves are fixedly connected to the inner wall of the adjustment tube. A group of protruding rods are slidably sleeved on the inner wall of each group of sliding sleeves.

[0014] As a preferred technical solution, the outer walls of multiple groups of the rotating shafts are provided with folding components, and the folding components include multiple groups of first connecting rods. The first connecting rods of each group are respectively fixedly mounted on the outer walls of a group of rotating shafts. The ends of the multiple groups of first connecting rods are simultaneously hinged to the side walls of a group of transition plates. Multiple groups of second connecting rods are hinged to the side of the transition plate away from the first connecting rods, and the transition plate is provided with a torsion spring at the contact position with the second connecting rod.

[0015] As a preferred technical solution, the ends of multiple groups of second connecting rods are hinged with walking components, and the walking components include a frame, which is hinged at the ends of multiple groups of second connecting rods at the same time. The inner wall of the frame is rotatably connected with a group of walking wheels at both ends and the middle position respectively, and the outer walls of the multiple groups of walking wheels are provided with tracks, which are meshed with the walking wheels. The inner wall of the frame is rotatably connected with multiple groups of supporting wheels, and the multiple groups of support wheels are respectively located between the multiple groups of walking wheels. The side walls of the frame are fixedly connected with second motors, and the output ends of each group of the second motors are respectively connected to a group of walking wheels.

[0016] In summary, the present invention mainly has the following beneficial effects: 1. The present invention supports the detector through multiple groups of first sleeves, second sleeves and third sleeves, so that the detector is close to the inner wall of the pipeline, so that the detector can accurately detect the pipeline, and a group of detection mechanisms are respectively arranged at both ends of the support pipe during the detection process, so that the pipeline can be tested twice during the detection process, thereby further ensuring the accuracy of the detection process, and the detection device is placed inside the pipeline for detection, and the pipeline does not need to be removed, making the detection process more convenient and efficient, and the pipeline does not need to be removed, which also avoids welding the pipeline again after the detection is completed, thereby reducing costs; 2. The present invention limits the push rod by a limit pin, so that the push rod cannot be reset. At this time, the reset cable pulls the third sleeve, so that the second sleeve and the third sleeve are retracted inside the first sleeve. At this time, the resilience of the extension spring cannot push the third sleeve to slide out of the second sleeve. The distance between the multiple sets of detectors and the support tube is close, which makes it more convenient to store and reduces the space occupied. The first connecting rod can be flipped at a certain angle to further reduce the volume of the detection device. 3. The present invention controls the meshing state between the tooth block and the toothed disc to control whether the rotating shaft can rotate freely, thereby controlling the angle of the first connecting rod, so that the spacing between multiple groups of tracks can be adjusted, and the second connecting rod is hinged to the transition plate and is provided with a torsion spring. There is a weld seam at intervals inside the pipeline. The torsion spring allows the track to better fit the inner wall of the pipeline, and the second motor drives the walking wheel to rotate, so that the walking wheel drives the track to rotate, and the support wheel further provides support for the track. The strong anti-skid ability of the track is utilized, so that the detection device has sufficient power to move forward inside the pipeline, thereby ensuring the adaptability of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 3It is a schematic diagram of the cross-sectional structure of the support tube of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Figure 5 It is a schematic diagram of the structure of the meshing state of the main driving bevel gear and the driven bevel gear of the present invention; Figure 6 It is a schematic diagram of the explosion structure from a side perspective of the detection mechanism of the present invention; Figure 7 It is a schematic structural diagram of the adjustment sleeve and the rotating plate of the present invention in a separated state; Figure 8 It is a schematic diagram of the internal structure of the first sleeve of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the fixed plate, the rotating plate and the threaded column of the present invention; Fig.10 It is a structural schematic diagram of the connection state between the power mechanism and the sliding sleeve of the present invention; Fig.11 It is a schematic diagram of the cross-sectional structure of the limiting strip of the present invention; Fig.12 It is a schematic diagram of the exploded structure of the walking assembly of the present invention.

[0018] In the figure: 1. Main body; 2. Detection mechanism; 3. Power mechanism; 101, support tube; 102, first motor; 103, main driving bevel gear; 104, bracket; 105, transmission shaft; 106, driven bevel gear; 107, connector; 108, adjustment tube; 109, sleeve; 201, installation assembly; 2011, fixing plate; 2012, hook; 2013, rotating sheet; 2014, threaded column; 202, scanning assembly; 2021, connecting sheet; 2022, extension rod; 2023, first sleeve; 2024, second sleeve; 2025, third sleeve; 2026, detector; 2027, extension spring; 2028, reset cable; 2029, guide tube; 203, adjustment assembly; 2031, adjustment sleeve; 2032, push rod; 2033, limit block; 2034, spring sheet; 2035, limit pin; 2036, connecting ring; 301, locking assembly; 3011, limiting strip; 3012, sliding rod; 3013, tooth block; 3014, rotating shaft; 3015, toothed disc; 3016, protruding rod; 3017, limiting spring piece; 302, folding assembly; 3021, first connecting rod; 3022, transition plate; 3023, second connecting rod; 303, walking assembly; 3031, frame; 3032, walking wheel; 3033, second motor; 3034, crawler track; 3035, supporting wheel. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] The following describes an embodiment of the present invention based on its overall structure.

[0021] A pipeline anti-corrosion layer detection device, such as Figures 1 to 12 As shown, it includes a main body 1, which includes a support tube 101, the inner wall of the support tube 101 is slidably sleeved with two groups of brackets 104, the inner walls of the two groups of brackets 104 are respectively rotatably sleeved with a group of transmission shafts 105, the ends of the two groups of transmission shafts 105 are respectively fixedly connected with a group of connectors 107, and the two ends of the support tube 101 are respectively provided with a group of detection mechanisms 2, and the two groups of detection mechanisms 2 are respectively connected to a group of connectors 107; The detection mechanism 2 includes a mounting assembly 201, the mounting assembly 201 includes a fixing plate 2011, the fixing plate 2011 is attached to the end of the support tube 101, the side wall of the fixing plate 2011 is fixedly connected with a plurality of hooks 2012, the plurality of hooks 2012 extend to the inner wall of the support tube 101, the inner wall of the fixing plate 2011 is rotatably connected with a rotating piece 2013, the rotating piece 2013 is located at one side of the inside of the support tube 101 and is fixedly connected with a scanning assembly 202, the scanning assembly 202 includes a connecting piece 2021, the connecting piece 2021 is located inside the support tube 101, and the connecting piece 2021 is fixedly connected to the rotating piece 20 The side wall of 13, the connecting piece 2021 is sleeved on the outside of the transmission shaft 105, the side wall of the rotating piece 2013 is hinged with multiple groups of extension rods 2022, the extension rods 2022 pass through the rotating piece 2013 and extend to the outside of the support tube 101, and the end of each group of extension rods 2022 is hinged with a group of first sleeves 2023, the inner wall of the first sleeve 2023 is slidably sleeved with a second sleeve 2024, the inner wall of the second sleeve 2024 is slidably sleeved with a third sleeve 2025, the end of the third sleeve 2025 extends to the outside of the second sleeve 2024, and the end of the third sleeve 2025 is fixedly connected with a detector 2026.

[0022] The transmission shaft 105 drives the connector 107 to rotate, and the connector 107 drives the threaded column 2014 to rotate. Since the threads on the threaded column 2014 match the rotation direction of the transmission shaft 105, the threaded connection between the threaded column 2014 and the rotating piece 2013 becomes tighter and tighter during the process of the threaded column 2014 rotating. The rotation of the threaded column 2014 drives the rotating piece 2013 to rotate, so that the rotating piece 2013 drives the connecting piece 2021 to rotate, so that the connecting piece 2021 drives the extension rod 2022 to rotate, so that the extension rod 2022 drives the first sleeve 2023 to rotate, and the first sleeve 2023 drives the second sleeve 2024 and the third sleeve 2025 to rotate, so that the detector 2026 rotates, so that multiple sets of detectors 2026 perform all-round detection on the inner wall of the pipeline, and there is a set of detection mechanisms 2 at both ends of the support pipe 101, so the same position of the pipeline will be detected on at least two sides, so that it is not easy to miss during the detection process.

[0023] Please refer to Figures 1 to 9The outer wall of the support tube 101 is fixedly connected with two groups of first motors 102, and the output end of each group of first motors 102 is respectively fixedly connected with a group of main driving bevel gears 103, and the main driving bevel gears 103 extend to the inner wall of the support tube 101, and the end of each group of transmission shafts 105 away from the connector 107 is respectively fixedly connected with a group of driven bevel gears 106, and the two groups of driven bevel gears 106 are meshed with the two groups of main driving bevel gears 103 at the same time, and the inner wall of the rotating piece 2013 is threadedly connected with a threaded column 2014, and the threaded column 2014 is located inside the support tube 101. A groove that matches the connector 107 is opened at one end, and the rotation direction of the transmission shaft 105 matches the thread of the threaded column 2014. A reset cable 2028 is fixedly connected to the inner wall of the third sleeve 2025, and the end of the reset cable 2028 passes through the inner wall of the connecting piece 2021. An extension spring 2027 is provided on the inner wall of the second sleeve 2024, and the extension spring 2027 is sleeved on the outside of the reset cable 2028. One end of the extension spring 2027 is fixedly connected to the inner wall of the third sleeve 2025, and the other end of the extension spring 2027 is fixedly connected to the inner wall of the third sleeve 2025. The inner wall of the first sleeve 2023 and the side wall of the connecting piece 2021 are fixedly connected with a plurality of guide tubes 2029, and the plurality of guide tubes 2029 are respectively sleeved on the outer wall of a group of reset cables 2028. The inner wall of the support tube 101 is provided with two groups of adjustment components 203, and the adjustment components 203 include an adjustment sleeve 2031, and the adjustment sleeve 2031 is slidably sleeved on the outer wall of a group of transmission shafts 105. The adjustment sleeve 2031 is rotatably connected with a connecting ring 2036 on the side that is in contact with the connecting piece 2021, and the connecting ring 2036 is fixedly connected to the plurality of reset cables 2028 on the same side. At the end of 028, the side walls of each group of adjustment sleeves 2031 are fixedly connected with multiple groups of push rods 2032, the outer wall of the support tube 101 is fixedly connected with multiple groups of limit blocks 2033, and the inner wall of each group of limit blocks 2033 is fixedly connected with a group of spring sheets 2034, one end of the spring sheet 2034 is fixedly connected to the inner wall of the limit block 2033, and the other end of the spring sheet 2034 is fixedly connected to the limit pin 2035, the end of the limit pin 2035 extends to the outside of the limit block 2033, and the limit pin 2035 is slidably connected to the inner wall of the limit block 2033.

[0024] The main driving bevel gear 103 is driven by the motor to rotate, and the main driving bevel gear 103 drives the driven bevel gear 106 to rotate, thereby driving the two sets of transmission shafts 105 to rotate, and the rotation directions of the two sets of transmission shafts 105 are opposite. When not detecting, by pulling the push rod 2032, the push rod 2032 drives the adjustment sleeve 2031, and the adjustment sleeve 2031 drives the connecting ring 2036. When the push rod 2032 contacts the limit pin 2035, the inclined surface on the limit pin 2035 contacts the push rod 2032, so that The limit pin 2035 slides into the limit block 2033 and compresses the spring sheet 2034. After the push rod 2032 completely slides over the limit pin 2035, the spring sheet 2034 rebounds and pushes the limit pin 2035 to reset, so that the push rod 2032 is blocked by the limit pin 2035. When the push rod 2032 is pulled, the connecting ring 2036 pulls the reset cable 2028, so that the reset cable 2028 pulls the third sleeve 2025 to slide into the second sleeve 2024, and then the reset cable 2028 is pulled back. 2028 continues to be pulled, the third sleeve 2025 pushes the second sleeve 2024 to slide into the first sleeve 2023, and the extension spring 2027 is compressed. After the push rod 2032 is blocked by the limit pin 2035, the push rod 2032 cannot be reset, so that the rebound force of the extension spring 2027 cannot push the third sleeve 2025 to slide out of the second sleeve 2024. At this time, the distance between the multiple sets of detectors 2026 and the support tube 101 is closer, which makes it more convenient to store. To reduce the space occupied, when in use, the limit pin 2035 is pushed so that the limit pin 2035 cannot contact the push rod 2032. At this time, the extension spring 2027 rebounds and pushes the third sleeve 2025 to slide outside the second sleeve 2024. After the third sleeve 2025 is fully extended out of the second sleeve 2024, under the push of the extension spring 2027, the third sleeve 2025 drives the second sleeve 2024 to slide out of the first sleeve 2023, so that the entire scanning assembly 202 is fully unfolded.

[0025] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 , Fig.10 , Fig.11 and Fig.12The outer wall of the support tube 101 is fixedly connected to a plurality of power mechanisms 3, each power mechanism 3 comprises a locking assembly 301, the locking assembly 301 comprises a limit bar 3011, the limit bar 3011 is fixedly connected to the outer wall of the support tube 101, the inner part of the limit bar 3011 is slidably connected to a sliding rod 3012 extending to the outside of the limit bar 3011, the end of the sliding rod 3012 is fixedly connected to a convex rod 3016, the side wall of the limit bar 3011 is fixedly connected to a plurality of limit spring pieces 3017, each limit spring piece 3017 is respectively located beside a group of tooth blocks 3013 The side wall of the limit strip 3011 is rotatably connected to multiple groups of rotating shafts 3014, and the outer wall of each group of rotating shafts 3014 is respectively fixedly sleeved with a group of toothed discs 3015, and the side wall of the sliding rod 3012 is fixedly connected to multiple groups of tooth blocks 3013, and each group of tooth blocks 3013 is respectively engaged with a group of toothed discs 3015. The outer wall of the support tube 101 is rotatably sleeved with an adjustment tube 108 at the middle position, and the inner wall of the adjustment tube 108 is fixedly connected to multiple groups of sliding sleeves 109, and the inner wall of each group of sliding sleeves 109 is respectively slidably sleeved with a group of convex rods 3016. The outer walls of the multiple groups of rotating shafts 3014 are provided with folding components 3 02, the folding assembly 302 includes a plurality of first connecting rods 3021, each of which is fixedly sleeved on the outer wall of a rotating shaft 3014, and the ends of the plurality of first connecting rods 3021 are simultaneously hinged on the side wall of a transition plate 3022, and the transition plate 3022 is hinged on a side away from the first connecting rod 3021 to have a plurality of second connecting rods 3023, and the transition plate 3022 is provided with a torsion spring at a contact position with the second connecting rod 3023, and the ends of the plurality of second connecting rods 3023 are hinged to the walking assembly 303, and the walking assembly 303 includes a frame 3031, and the frame 3031 is simultaneously hinged to the side wall of a transition plate 3022, and the transition plate 3022 is hinged ... hinged to have a plurality of second connecting rods 3023, and the transition plate 3022 is hinged to have a plurality of second connecting rods 3023, and the transition plate 3022 is hinged to have a plurality of second connecting rods 3023, and the transition plate 3022 is hinged to have a plurality of second connecting rods 3023, and the transition plate 3022 is hinged to have a plurality of second connecting Hinged at the end of multiple groups of second connecting rods 3023, the inner wall of the frame 3031 is rotatably connected to a group of running wheels 3032 at both ends and the middle position respectively, the outer walls of the multiple groups of running wheels 3032 are provided with tracks 3034, the tracks 3034 are engaged with the running wheels 3032, the inner wall of the frame 3031 is rotatably connected to multiple groups of supporting wheels 3035, the multiple groups of supporting wheels 3035 are respectively located between the multiple groups of running wheels 3032, the side walls of the frame 3031 are fixedly connected to the second motors 3033, and the output ends of each group of second motors 3033 are respectively connected to a group of running wheels 3032.

[0026] By rotating the adjusting tube 108, the adjusting tube 108 drives the sliding sleeve 109 to rotate the sliding sleeve 109 to push the protruding rod 3016, thereby driving the sliding rod 3012 to slide inside the limiting strip 3011, so that the limiting strip 3011 pushes the limiting spring piece 3017 to slide to the other side of the limiting spring piece 3017. At this time, the tooth block 3013 is not in contact with the rack. Then, the frame 3031 is pulled to change the angle between the first connecting rod 3021 and the transition plate 3022, thereby adjusting the spacing between the multiple groups of crawlers 3034, so that the spacing between the multiple groups of crawlers 3034 can match the inner diameter of the pipeline. Then, the adjusting sleeve 2031 is rotated in the opposite direction, so that the adjusting sleeve 2031 drives the sliding sleeve 109 to rotate in the opposite direction. At this time, the sliding rod 3012 is driven by the protruding rod 3016 to slide back and reset, so that the tooth block 3013 is engaged with the toothed disc 3015. At this time, the toothed disc 3015 cannot rotate, so the rotating shaft 30 14 cannot rotate, the rotating shaft 3014 and the first connecting rod 3021 are fixedly mounted, so the first connecting rod 3021 cannot flip over at this time, so that the first connecting rod 3021 is locked, and the limiting spring piece 3017 blocks the sliding rod 3012, so that the sliding rod 3012 will not slide on the inner wall of the limiting strip 3011 without human push, and the second connecting rod 3023 is hinged to the transition plate 3022, and a torsion spring is provided. There is a weld seam at intervals in the interior of the pipeline. The torsion spring allows the track 3034 to fit better on the inner wall of the pipeline, and the second motor 3033 drives the walking wheel 3032 to rotate, so that the walking wheel 3032 drives the track 3034 to rotate, and the supporting wheel 3035 further provides support for the track 3034, and utilizes the strong anti-skid ability of the track 3034 to enable the detection device to have enough power to move forward inside the pipeline.

[0027] When in use, the detector 2026 is supported by multiple groups of first sleeves 2023, second sleeves 2024 and third sleeves 2025, so that the detector 2026 is close to the inner wall of the pipeline, so that the detector 2026 can accurately detect the pipeline well, and during the detection process, a group of detection mechanisms 2 are respectively provided at both ends of the support pipe 101, so that the pipeline can be secondary inspected during the detection process, thereby further ensuring the accuracy of the detection process, and the detection device is placed inside the pipeline for detection, and there is no need to dismantle the pipeline, making the detection process more convenient and efficient. The need to dismantle the pipeline also avoids welding the pipeline again after the detection is completed, thereby reducing costs. The parts not involved in the device are the same as the prior art or can be implemented using the prior art.

[0028] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A pipeline anti-corrosion layer detection device, comprising a main body (1), characterized in that: The main body (1) comprises a support tube (101), the inner wall of the support tube (101) is slidably sleeved with two groups of brackets (104), the inner walls of the two groups of brackets (104) are respectively rotatably sleeved with a group of transmission shafts (105), the ends of the two groups of transmission shafts (105) are respectively fixedly connected with a group of connectors (107), and the two ends of the support tube (101) are respectively provided with a group of detection mechanisms (2), and the two groups of detection mechanisms (2) are respectively connected to a group of connectors (107); The detection mechanism (2) comprises a mounting assembly (201), wherein the mounting assembly (201) comprises a fixing plate (2011), wherein the fixing plate (2011) is attached to an end of a support tube (101), wherein a plurality of groups of hooks (2012) are fixedly connected to a side wall of the fixing plate (2011), wherein the plurality of groups of hooks (2012) extend to an inner wall of the support tube (101), wherein a rotating piece (213) is rotatably connected to the inner wall of the fixing plate (2011), wherein a side of the rotating piece (2013) located inside the support tube (101) is fixedly connected to a scanning assembly (202), wherein the scanning assembly (202) comprises a connecting piece (2021), wherein the connecting piece (2021) is located inside the support tube (101), and wherein the connecting piece (2021) is fixedly connected to the rotating piece (2021). The side wall of the moving plate (2013), the connecting plate (2021) is sleeved on the outside of the transmission shaft (105), the side wall of the rotating plate (2013) is hinged with a plurality of groups of extension rods (2022), the extension rods (2022) pass through the rotating plate (2013) and extend to the outside of the support tube (101), the ends of each group of the extension rods (2022) are respectively hinged with a group of first sleeves (2023), the inner wall of the first sleeve (2023) is slidably sleeved with a second sleeve (2024), the inner wall of the second sleeve (2024) is slidably sleeved with a third sleeve (2025), the end of the third sleeve (2025) extends to the outside of the second sleeve (2024), and the end of the third sleeve (2025) is fixedly connected with a detector (2026).

2. A pipeline anti-corrosion layer detection device according to claim 1, characterized in that: Two groups of first motors (102) are fixedly connected to the outer wall of the support tube (101); the output end of each group of the first motors (102) is respectively fixedly connected to a group of main drive bevel gears (103); the main drive bevel gears (103) extend to the inner wall of the support tube (101); one end of each group of the transmission shafts (105) away from the connector (107) is respectively fixedly connected to a group of driven bevel gears (106); the two groups of driven bevel gears (106) are meshed with the two groups of main drive bevel gears (103) at the same time.

3. A pipeline anti-corrosion layer detection device according to claim 1, characterized in that: The inner wall of the rotating plate (2013) is threadedly connected to a threaded column (2014); one end of the threaded column (2014) located inside the support tube (101) is provided with a groove that matches the connector (107); and the rotation direction of the transmission shaft (105) matches the thread of the threaded column (2014).

4. A pipeline anti-corrosion layer detection device according to claim 1, characterized in that: A reset cable (2028) is fixedly connected to the inner wall of the third sleeve (2025), and the end of the reset cable (2028) passes through the inner wall of the connecting plate (2021). An extension spring (2027) is provided on the inner wall of the second sleeve (2024), and the extension spring (2027) is sleeved on the outside of the reset cable (2028). One end of the extension spring (2027) is fixedly connected to the inner wall of the third sleeve (2025), and the other end of the extension spring (2027) is fixedly connected to the inner wall of the first sleeve (2023). A plurality of guide tubes (2029) are fixedly connected to the side wall of the connecting plate (2021), and the plurality of guide tubes (2029) are respectively sleeved on the outer wall of a group of reset cables (2028).

5. A pipeline anti-corrosion layer detection device according to claim 1, characterized in that: The inner wall of the support tube (101) is provided with two groups of adjustment components (203), and the adjustment components (203) include adjustment sleeves (2031), and the adjustment sleeves (2031) are slidably sleeved on the outer wall of a group of transmission shafts (105). The adjustment sleeves (2031) are rotatably connected to a connecting ring (2036) on the side that is in contact with the connecting piece (221), and the connecting ring (2036) is fixedly connected to the ends of multiple groups of reset cables (2028) on the same side, and the side walls of each group of the adjustment sleeves (2031) are respectively fixedly connected to multiple groups of push rods (2028). 32), a plurality of groups of limit blocks (2033) are fixedly connected to the outer wall of the support tube (101), and a group of spring sheets (2034) are fixedly connected to the inner wall of each group of limit blocks (2033), one end of the spring sheet (2034) is fixedly connected to the inner wall of the limit block (2033), and the other end of the spring sheet (2034) is fixedly connected to a limit pin (2035), an end of the limit pin (2035) extends to the outside of the limit block (2033), and the limit pin (2035) is slidably connected to the inner wall of the limit block (2033).

6. A pipeline anti-corrosion layer detection device according to claim 1, characterized in that: The outer wall of the support tube (101) is fixedly connected to a plurality of power mechanisms (3), each of which comprises a locking assembly (301), the locking assembly (301) comprising a limit bar (3011), the limit bar (3011) being fixedly connected to the outer wall of the support tube (101), the interior of the limit bar (3011) being slidably connected to a sliding rod (3012) extending to the outside of the limit bar (3011), the end of the sliding rod (3012) being fixedly connected to a convex rod (3016), and the side wall of the limit bar (3011) is fixedly connected to a plurality of limit spring sheets (3017), each of which is located next to a group of tooth blocks (3013).

7. A pipeline anti-corrosion layer detection device according to claim 6, characterized in that: The side wall of the limit bar (3011) is rotatably connected to a plurality of sets of rotating shafts (3014), and the outer wall of each set of the rotating shafts (3014) is respectively fixedly sleeved with a set of toothed discs (3015). The side wall of the sliding rod (3012) is fixedly connected to a plurality of sets of tooth blocks (3013), and each set of the tooth blocks (3013) is respectively meshed with a set of toothed discs (3015).

8. A pipeline anti-corrosion layer detection device according to claim 1, characterized in that: An adjusting tube (108) is rotatably sleeved on the outer wall of the support tube (101) near the middle position, and a plurality of groups of sliding sleeves (109) are fixedly connected to the inner wall of the adjusting tube (108). A group of protruding rods (3016) are slidably sleeved on the inner wall of each group of sliding sleeves (109).

9. A pipeline anti-corrosion layer detection device according to claim 7, characterized in that: The outer walls of the plurality of rotating shafts (3014) are provided with folding assemblies (302), and the folding assemblies (302) include a plurality of first connecting rods (3021), and each group of the first connecting rods (3021) is respectively fixedly sleeved on the outer wall of a group of rotating shafts (3014), and the ends of the plurality of first connecting rods (3021) are simultaneously hinged to the side walls of a group of transition plates (3022), and a plurality of second connecting rods (3023) are hinged to a side of the transition plates (3022) away from the first connecting rods (3021), and a torsion spring is provided at a contact position of the transition plates (3022) with the second connecting rods (3023).

10. A pipeline anti-corrosion layer detection device according to claim 9, characterized in that: The ends of the plurality of groups of second connecting rods (3023) are hingedly connected to a walking assembly (303), and the walking assembly (303) comprises a frame (3031), and the frame (3031) is hingedly connected to the ends of the plurality of groups of second connecting rods (3023) at the same time; the inner wall of the frame (3031) is rotatably connected to a group of walking wheels (3032) at both ends and in the middle, respectively; the outer walls of the plurality of groups of walking wheels (3032) are sleeved with tracks (3034), and the tracks (3034) are meshed with the walking wheels (3032); the inner wall of the frame (3031) is rotatably connected to a plurality of supporting wheels (3035), and the plurality of supporting wheels (3035) are respectively located between the plurality of groups of walking wheels (3032); the side wall of the frame (3031) is fixedly connected to a second motor (3033), and the output end of each group of the second motor (3033) is respectively connected to a group of walking wheels (3032).

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