Special equipment pressure pipeline quality detection device

Abstract

The invention provides a special equipment pressure pipeline quality detection device, and belongs to the technical field of pipeline detection. The special equipment pressure pipeline quality detection device comprises frames and a mounting plate, the mounting plate is mounted among the multiple frames, sliding rods are further mounted among the frames, a detection mechanism is mounted on the surfaces of the frames and used for detecting a pipeline, and the detection mechanism comprises a visual sensor, a first gear ring, an ultrasonic probe and a first gear. According to the device, the detection mechanism is arranged, the inner wall of the pipeline is preliminarily scanned through the visual sensor, corrosion spots of the pipeline are preliminarily captured, then the preliminarily captured corrosion spots are accurately scanned through the ultrasonic probe, reflected wave data are collected, and the depth, degree and expansion condition of corrosion are judged by analyzing the propagation time, amplitude and the like of waves; therefore, the corrosion severity is comprehensively analyzed according to a result of combining the ultrasonic data and the visual data, and the corrosion evaluation accuracy is improved by combining detection results of the ultrasonic data and the visual data.

Description

Technical Field

[0001] This invention relates to the field of pipeline inspection technology, and more specifically, to a special equipment pressure pipeline quality inspection device. Background Technology

[0002] Pressure pipelines, as crucial equipment for carrying high-temperature, high-pressure, flammable, explosive, or toxic media, are widely used in petrochemical, power, metallurgical, natural gas transmission, and municipal infrastructure industries. Due to their complex operating conditions and harsh service environments, ruptures or leaks can easily cause significant personal injury, property damage, and environmental pollution. Therefore, ensuring the structural integrity and operational safety of pressure pipelines has become a key focus of industrial safety management.

[0003] In facilities such as pressure pipelines, corrosion pits, local thinning, and pitting corrosion are common service damages. Especially after long-term use, these defects are often formed gradually due to environmental factors such as moisture, chemical corrosive media, or fatigue of the pipeline material itself. Existing detection methods still have some limitations. They mainly use handheld ultrasonic probes to scan along the outer wall of the pipeline to measure the wall thickness and find thinning areas. The detection efficiency is low, and only single points can be detected. A lot of operations are required, and it is difficult to cover the entire pipeline. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a special equipment pressure pipeline quality inspection device that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows: This invention provides a special equipment pressure pipeline quality inspection device, comprising a frame and a mounting plate, the mounting plate being installed between several frames, and sliding rods being installed between the frames. A detection mechanism is mounted on the surface of the frame for inspecting the pipeline. The detection mechanism includes: A vision sensor, mounted on one end of a mounting plate, is used to initially detect corrosion spots on the pipe surface. A first gear ring is fixedly mounted on the surface of the middle frame, and a mounting bracket is mounted on the surface of the first gear ring. An ultrasonic probe, mounted on the surface of a mounting bracket, is used to perform a depth scan on initially detected corrosion points. The first gear is rotatably mounted inside the mounting bracket cavity and meshes with the first gear ring.

[0006] In a preferred embodiment, a first motor is fixedly mounted on the side wall of the mounting bracket, and the output end of the first motor is fixedly connected to a first gear for driving the first gear to rotate. Slider blocks are symmetrically slidably mounted on the surface of the slide rod, and a synchronization frame is fixedly mounted between adjacent sliders.

[0007] In a preferred embodiment, a support frame is hinged to the surface of the frame at both ends, a drive wheel is rotatably mounted at one end of the support frame, a second motor is fixedly mounted on the side wall of the support frame, the output end of the second motor is fixedly connected to the drive wheel for driving the drive wheel to rotate, and a first connecting rod is hinged between the support frame and the slider.

[0008] In a preferred embodiment, a bidirectional lead screw is rotatably mounted between the two ends of the frame, a threaded block is fixedly mounted on the surface of the slider, the threaded block is threadedly connected to the bidirectional lead screw, a dual motor is fixedly mounted on the inner wall of the frame, a second gear is mounted on one output end of the dual motor, and a third gear is fixedly mounted on the surface of the bidirectional lead screw, the third gear meshing with the second gear.

[0009] In a preferred embodiment, an auxiliary mechanism is mounted on the surface of the mounting plate to assist the vision sensor in scanning the surface of the pipe. The auxiliary mechanism includes an air pump and a second gear ring. The air pump is mounted on the surface of the mounting plate for supplying air. The second gear ring is rotatably mounted in the inner cavity of the front frame. A fourth gear is mounted on the output end of the other side of the dual motor. The fourth gear meshes with the second gear ring to drive the second gear ring to rotate.

[0010] In a preferred embodiment, a bracket is fixedly installed on the side of the second gear ring, a branch pipe is rotatably installed in the inner cavity of the bracket, a telescopic hose is connected between the branch pipe and the air pump, and a nozzle is installed at the other end of the branch pipe.

[0011] In a preferred embodiment, an adjusting cylinder is rotatably mounted inside the bracket cavity, a first piston is slidably mounted inside the adjusting cylinder cavity, a second connecting rod is hinged between the first piston and the branch pipe for adjusting the angle of the branch pipe, an elastic airbag is sleeved on the surface of the sliding rod, and a telescopic hose is connected between the elastic airbag and the adjusting cylinder.

[0012] In a preferred embodiment, a marking mechanism is installed on the surface of the frame for marking corrosion points. The marking mechanism includes a rotating disk and a sleeve. The rotating disk is rotatably mounted on the rear surface of the frame. Sleeves are symmetrically mounted on the surface of the rotating disk. A telescopic rod is slidably mounted inside the sleeve. A sponge block is fixedly mounted on one end of the telescopic rod. A spring is installed inside the sleeve. One end of the spring is fixedly connected to the sleeve, and the other end of the spring is fixedly connected to the telescopic rod, for driving the sponge block to adhere tightly to the inner wall of the pipe.

[0013] In a preferred embodiment, a paint tank is mounted on the surface of the mounting plate for storing infrared paint, a liquid extraction cylinder is mounted on the surface of the mounting plate, a first one-way valve and a second one-way valve are mounted on the surface of the liquid extraction cylinder, a pipe is connected between the first one-way valve and the paint tank, a hose is connected between the second one-way valve and the sponge block, a second piston is slidably mounted in the inner cavity of the liquid extraction cylinder, and a telescopic cylinder is fixedly mounted on the surface of the mounting plate, with the telescopic end of the telescopic cylinder fixedly connected to the second piston.

[0014] In a preferred embodiment, a third gear ring is fixedly mounted on the side wall of the rotating disk, a first rotating shaft is rotatably mounted on the side of the rear frame, a fifth gear is fixedly mounted on one end of the first rotating shaft and meshes with the third gear ring, a first spline tooth is fixedly mounted on the other end of the first rotating shaft, a second rotating shaft is rotatably mounted on the side wall of the front frame, the second rotating shaft is coaxial with the first rotating shaft, a sixth gear is fixedly mounted on one end of the second rotating shaft and meshes with the second gear ring, a second spline tooth is fixedly mounted on the other end of the second rotating shaft, a spline sleeve is slidably fitted onto the surface of the second spline tooth, the spline sleeve is adapted to the first spline tooth and the second spline tooth, and a drive plate is installed between the spline sleeve and the telescopic end of the telescopic cylinder for driving the spline sleeve to move.

[0015] The present invention provides a special equipment pressure pipeline quality inspection device, the beneficial effects of which include: By setting up a detection mechanism, a visual sensor is used to initially scan the inner wall of the pipe and capture corrosion points on the pipe surface. Then, a first motor drives a first gear to rotate, which in turn drives the mounting bracket to rotate the ultrasonic probe on the surface of the first gear ring, moving it to the surface of the corrosion point. The ultrasonic probe then performs a precise scan of the initially captured corrosion point, collects reflected wave data, and analyzes the wave propagation time and amplitude to determine the depth, degree, and extent of corrosion. Based on the combined results of ultrasonic and visual data, the severity of corrosion is comprehensively analyzed. Combining the detection results of both methods improves the accuracy of corrosion assessment and reduces the false positive rate.

[0016] 2. By setting up an auxiliary mechanism, an air pump supplies air to the branch pipe and sprays it onto the inner wall of the pipe through the nozzle, thereby cleaning the inner wall of the pipe and ensuring the scanning effect of the vision sensor. Furthermore, the dual motors can drive the second gear ring to reciprocate, thereby driving the nozzle to rotate and achieving all-round cleaning of the inner wall of the pipe, thus improving the cleaning effect.

[0017] 3. By setting up a marking mechanism, after the corrosion point is determined by the ultrasonic probe, the telescopic cylinder extends, pushing the second piston to move. The second one-way valve is opened, injecting the infrared coating in the suction cylinder into the sponge block. At the same time, the drive plate drives the spline sleeve to move synchronously, so that the spline sleeve is simultaneously fitted onto the surfaces of the first and second spline teeth. Then, the second gear ring and the sixth gear can drive the third gear ring and the rotating disk to rotate synchronously, coating the infrared coating on the surface of the sponge block onto the inner wall of the pipe, thus marking the corrosion point. The corrosion location can then be quickly located by external thermal imaging equipment based on the change in pipe surface temperature, improving detection efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. Figure 1 This is a frontal perspective view provided by an embodiment of the present invention; Figure 2 A side perspective view provided for an embodiment of the present invention; Figure 3 A side view provided for an embodiment of the present invention; Figure 4 A front cross-sectional view provided for an embodiment of the present invention; Figure 5 A perspective view of the second gear ring provided for an embodiment of the present invention; Figure 6 Provided for the embodiments of the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 A rear-view perspective view provided for an embodiment of the present invention; Figure 8 A side cross-sectional view provided for an embodiment of the present invention; Figure 9 Provided for the embodiments of the present invention Figure 8 Enlarged view at point B in the middle; Figure 10 A cross-sectional view of the rotating disk provided for an embodiment of the present invention; Figure 11 An exploded view provided for an embodiment of the present invention.

[0019] In the diagram: 1. Frame; 2. Mounting plate; 3. Slide rod; 4. Detection mechanism; 401. Vision sensor; 402. First gear ring; 403. Mounting bracket; 404. Ultrasonic probe; 405. First gear; 406. First motor; 407. Slider; 408. Synchronizing frame; 409. Support frame; 410. Drive wheel; 411. Second motor; 412. First connecting rod; 413. Bidirectional lead screw; 414. Threaded block; 415. Dual motors; 416. Second gear; 417. Third gear; 5. Auxiliary mechanism; 501. Air pump; 502. Second gear ring; 503. Fourth gear; 504. Bracket; 505. Branch pipe; 5 06. Nozzle; 507. Adjusting cylinder; 508. First piston; 509. Second connecting rod; 510. Elastic airbag; 6. Marking mechanism; 601. Rotating disk; 602. Sleeve rod; 603. Telescopic rod; 604. Sponge block; 605. Spring; 606. Paint tank; 607. Liquid extraction cylinder; 608. First one-way valve; 609. Second one-way valve; 610. Second piston; 611. Telescopic cylinder; 612. Third gear ring; 613. First rotating shaft; 614. Fifth gear; 615. First spline tooth; 616. Second rotating shaft; 617. Sixth gear; 618. Second spline tooth; 619. Spline sleeve; 620. Drive plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0021] Reference Figures 1-11As shown, the present invention provides a technical solution: a special equipment pressure pipeline quality inspection device, including a frame 1 and a mounting plate 2. The mounting plate 2 is installed between several frames 1, and a sliding rod 3 is also installed between the frames 1. A detection mechanism 4 is installed on the surface of the frame 1 for inspecting the pipeline. The detection mechanism 4 includes a vision sensor 401, a first gear ring 402, an ultrasonic probe 404, and a first gear 405. The vision sensor 401 is installed at one end of the mounting plate 2 for initially capturing corrosion points on the pipeline surface. The first gear ring 402 is fixedly installed on the surface of the middle frame 1, and a mounting bracket 403 is installed on the surface of the first gear ring 402. The ultrasonic probe 404 is installed on the surface of the mounting bracket 403 for performing a depth scan on the initially captured corrosion points. The first gear 405 is rotatably installed in the inner cavity of the mounting bracket 403, and the first gear 405 meshes with the first gear ring 402. A first motor 406 is fixedly installed on the side wall of 403. The output end of the first motor 406 is fixedly connected to the first gear 405 to drive the first gear 405 to rotate. In use, the visual sensor 401 performs a preliminary scan of the inner wall of the pipe and initially captures corrosion points on the pipe surface. Then, the first motor 406 drives the first gear 405 to rotate, thereby driving the mounting bracket 403 to drive the ultrasonic probe 404 to rotate on the surface of the first gear ring 402, moving it to the surface of the corrosion point. The ultrasonic probe 404 performs a precise scan of the initially captured corrosion point, collects reflected wave data, and analyzes the wave propagation time, amplitude, etc. to determine the depth, degree, and expansion of corrosion. Based on the combined results of ultrasonic data and visual data, the severity of corrosion is comprehensively analyzed. Combining the detection results of both improves the accuracy of corrosion assessment and reduces the misjudgment rate.

[0022] Reference Figures 1-4 As shown, in a preferred embodiment, sliders 407 are symmetrically slidably mounted on the surface of the slide bar 3, and a synchronization frame 408 is fixedly mounted between adjacent sliders 407. Support frames 409 are hinged to the surfaces of the two end frames 1. A drive wheel 410 is rotatably mounted on one end of the support frame 409. A second motor 411 is fixedly mounted on the side wall of the support frame 409. The output end of the second motor 411 is fixedly connected to the drive wheel 410 for driving the drive wheel 410 to rotate. A first connecting rod 412 is hinged between the support frame 409 and the slider 407.

[0023] Reference Figures 1-4As shown, in a preferred embodiment, a bidirectional lead screw 413 is rotatably mounted between the two end frames 1. A threaded block 414 is fixedly mounted on the surface of the slider 407, and the threaded block 414 is threadedly connected to the bidirectional lead screw 413. A dual motor 415 is fixedly mounted on the inner wall of the frame 1. The dual motor 415 uses two independent motors, each of which drives one side of the output shaft. They can be controlled independently by their respective control systems, so the output shafts on both sides can be independently controlled for speed, direction, acceleration, etc. A second gear 416 is mounted on one output end of the dual motor 415, and a threaded block 414 is fixedly mounted on the surface of the bidirectional lead screw 413. The third gear 417 meshes with the second gear 416. In use, the device is placed in the pipe to be tested. The second gear 416 is driven to rotate by the dual motors 415, which in turn drives the third gear 417 and the bidirectional lead screw 413 to rotate. This drives the threaded blocks 414 on both sides to move the sliders 407 on both sides away from each other. The first connecting rod 412 supports the support frame 409, so that the drive wheel 410 is in close contact with the inner wall of the pipe. The second motor 411 drives the drive wheel 410 to rotate, thus realizing the movement of the device in the pipe. It is suitable for use in pipes of different diameters.

[0024] In a preferred embodiment, during use, the device is placed in the pipe to be inspected. The dual motors 415 drive the second gear 416 to rotate, which in turn drives the third gear 417 and the bidirectional lead screw 413 to rotate. This drives the threaded blocks 414 on both sides, causing the sliders 407 on both sides to move away from each other. The first connecting rod 412 supports the support frame 409, ensuring the drive wheel 410 is in close contact with the inner wall of the pipe. The second motor 411 then drives the drive wheel 410 to rotate, thus enabling the device to move within the pipe. This method is suitable for pipes of different diameters. Subsequently, a vision sensor 401 performs a preliminary scan of the inner wall of the pipe, and... The system initially captures corrosion points on the pipe surface. Then, the first motor 406 drives the first gear 405 to rotate, which in turn drives the mounting bracket 403 to rotate the ultrasonic probe 404 on the surface of the first gear ring 402, moving it to the surface of the corrosion point. The ultrasonic probe 404 then precisely scans the initially captured corrosion points, collects reflected wave data, and analyzes the wave propagation time and amplitude to determine the depth, degree, and extent of corrosion. Based on the combined results of ultrasonic and visual data, the severity of corrosion is comprehensively analyzed. Combining the detection results of both methods improves the accuracy of corrosion assessment and reduces the false positive rate.

[0025] Reference Figures 1-6As shown, in a preferred embodiment, an auxiliary mechanism 5 is mounted on the surface of the mounting plate 2 to assist the vision sensor 401 in scanning the pipe surface. The auxiliary mechanism 5 includes an air pump 501 and a second gear ring 502. The air pump 501 is mounted on the surface of the mounting plate 2 for supplying air. The second gear ring 502 is rotatably mounted in the inner cavity of the front frame 1. A fourth gear 503 is mounted on the other output end of the dual motor 415. The fourth gear 503 meshes with the second gear ring 502 to drive the second gear ring 502 to rotate. The side of the second gear ring 502 is fixed. A bracket 504 is fixedly installed, and a branch pipe 505 is rotatably installed inside the bracket 504. A telescopic hose is connected between the branch pipe 505 and the air pump 501. A nozzle 506 is installed at the other end of the branch pipe 505. In use, the air pump 501 supplies air to the branch pipe 505, and the air is sprayed onto the inner wall of the pipe through the nozzle 506, thereby cleaning the inner wall of the pipe and ensuring the scanning effect of the vision sensor 401. The second gear ring 502 can be driven to reciprocate through the dual motors 415, thereby driving the nozzle 506 to rotate and achieving all-round cleaning of the inner wall of the pipe.

[0026] Reference Figures 1-6 As shown, in a preferred embodiment, an adjusting cylinder 507 is rotatably mounted inside the bracket 504, and a first piston 508 is slidably mounted inside the adjusting cylinder 507. A second connecting rod 509 is hinged between the first piston 508 and the branch pipe 505 for adjusting the angle of the branch pipe 505. An elastic airbag 510 is sleeved on the surface of the slide rod 3, and a telescopic hose is connected between the elastic airbag 510 and the adjusting cylinder 507. When the bidirectional lead screw 413 is driven to rotate by the dual motors 415, the threaded blocks 414 on both sides move away from each other, which can compress the elastic airbag 510, inject the gas in the elastic airbag 510 into the adjusting cylinder 507, and push the first piston 508 to move. The second connecting rod 509 then pushes the branch pipe 505 to rotate, thereby achieving adaptive adjustment of the nozzle 506 angle and improving the cleaning effect.

[0027] In a preferred embodiment, the dual motors 415 drive the bidirectional lead screw 413 to rotate, causing the threaded blocks 414 on both sides to move away from each other, which compresses the elastic airbag 510. This injects the gas in the elastic airbag 510 into the regulating cylinder 507, pushing the first piston 508 to move. The second connecting rod 509 then drives the branch pipe 505 to rotate, achieving adaptive adjustment of the nozzle 506 angle. Subsequently, the air pump 501 supplies air to the branch pipe 505, which is then sprayed onto the inner wall of the pipe through the nozzle 506, thereby cleaning the inner wall of the pipe and ensuring the scanning effect of the vision sensor 401. Furthermore, the dual motors 415 can drive the second gear ring 502 to reciprocate, thereby driving the nozzle 506 to rotate, achieving all-round cleaning of the inner wall of the pipe and improving the cleaning effect.

[0028] Reference Figures 1-11 As shown, in a preferred embodiment, a marking mechanism 6 is installed on the surface of the frame 1 for marking corrosion points. The marking mechanism 6 includes a rotating disk 601 and a sleeve rod 602. The rotating disk 601 is rotatably mounted on the surface of the rear frame 1. The sleeve rod 602 is symmetrically mounted on the surface of the rotating disk 601. A telescopic rod 603 is slidably mounted in the inner cavity of the sleeve rod 602. A sponge block 604 is fixedly mounted on one end of the telescopic rod 603. A spring 605 is installed in the inner cavity of the sleeve rod 602. One end of the spring 605 is fixedly connected to the sleeve rod 602, and the other end of the spring 605 is fixedly connected to the telescopic rod 603, for driving the sponge block 604 to adhere tightly to the inner wall of the pipe.

[0029] Reference Figures 1-11 As shown, in a preferred embodiment, a paint tank 606 is mounted on the surface of the mounting plate 2 for storing infrared paint. A liquid extraction cylinder 607 is mounted on the surface of the mounting plate 2. A first one-way valve 608 and a second one-way valve 609 are mounted on the surface of the liquid extraction cylinder 607. The first one-way valve 608 is unidirectionally open to the inside of the liquid extraction cylinder 607 for feeding, and the second one-way valve 609 is unidirectionally open to the outside of the liquid extraction cylinder 607 for discharging. A pipe connects the first one-way valve 608 and the paint tank 606, and a hose connects the second one-way valve 609 and the sponge block 604. A second piston 610 is slidably installed in the cavity, and a telescopic cylinder 611 is fixedly installed on the surface of the mounting plate 2. The telescopic end of the telescopic cylinder 611 is fixedly connected to the second piston 610. In use, the second piston 610 can be moved by the contraction of the telescopic cylinder 611. The first one-way valve 608 is opened, and the infrared paint in the paint tank 606 is drawn into the liquid extraction cylinder 607. When the corrosion point is determined by the ultrasonic probe 404, the telescopic cylinder 611 extends, pushing the second piston 610 to move. The second one-way valve 609 is opened, and the infrared paint in the liquid extraction cylinder 607 is injected into the sponge block 604.

[0030] Reference Figures 1-11As shown, in a preferred embodiment, a third gear ring 612 is fixedly mounted on the side wall of the rotating disk 601, a first rotating shaft 613 is rotatably mounted on the side of the rear frame 1, a fifth gear 614 is fixedly mounted on one end of the first rotating shaft 613, the fifth gear 614 meshes with the third gear ring 612 to drive the rotating disk 601 to rotate, a first spline tooth 615 is fixedly mounted on the other end of the first rotating shaft 613, a second rotating shaft 616 is rotatably mounted on the side wall of the front frame 1, the second rotating shaft 616 is coaxial with the first rotating shaft 613, a sixth gear 617 is fixedly mounted on one end of the second rotating shaft 616, the sixth gear 617 meshes with the second gear ring 502, a second spline tooth 618 is fixedly mounted on the other end of the second rotating shaft 616, a spline sleeve 619 is slidably sleeved on the surface of the second spline tooth 618, and the spline sleeve 619 and the first spline tooth... Spline sleeve 615 is adapted to the second spline tooth 618. A drive plate 620 is installed between the spline sleeve 619 and the telescopic end of the telescopic cylinder 611 to drive the spline sleeve 619 to move. When the telescopic cylinder 611 extends and pushes the second piston 610 to move, the infrared coating in the liquid extraction cylinder 607 is injected into the sponge block 604. The drive plate 620 drives the spline sleeve 619 to move synchronously, so that the spline sleeve 619 is simultaneously fitted onto the surfaces of the first spline tooth 615 and the second spline tooth 618. Then, the third gear ring 612 and the rotating disk 601 can be driven to reciprocate synchronously through the second gear ring 502 and the sixth gear 617, so that the infrared coating on the surface of the sponge block 604 is coated on the inner wall of the pipe, thereby marking the corrosion points. The corrosion location can then be quickly located by thermal imaging equipment based on the change in the pipe surface temperature, thus improving the detection efficiency.

[0031] In a preferred embodiment, during use, after the corrosion point is determined by the ultrasonic probe 404, the telescopic cylinder 611 extends, pushing the second piston 610 to move. The second one-way valve 609 is opened, injecting the infrared coating in the suction cylinder 607 into the sponge block 604. Simultaneously, the drive plate 620 drives the spline sleeve 619 to move synchronously, so that the spline sleeve 619 simultaneously fits onto the surfaces of the first spline tooth 615 and the second spline tooth 618. Then, the second gear ring 502 and the sixth gear 617 can drive the third gear ring 612 and the rotating disk 601 to rotate synchronously, coating the infrared coating on the surface of the sponge block 604 onto the inner wall of the pipe, thus marking the corrosion point. The corrosion location can then be quickly located by thermal imaging equipment based on changes in the pipe surface temperature, improving detection efficiency.

[0032] Specifically, the working principle of this special equipment pressure pipeline quality inspection device is as follows: During use, the device is placed into the pipeline to be inspected. Dual motors 415 drive the second gear 416 to rotate, which in turn drives the third gear 417 and the double-acting lead screw 413 to rotate. This drives the threaded blocks 414 on both sides, causing the sliders 407 on both sides to move away from each other. The first connecting rod 412 supports the support frame 409, ensuring the drive wheel 410 is in close contact with the inner wall of the pipeline. The second motor 411 then drives the drive wheel 410 to rotate, thus enabling the device to move within the pipeline. This device is suitable for pipelines of different diameters. Subsequently, a vision sensor 401 inspects the inner wall of the pipeline. A preliminary scan is performed to initially capture corrosion points on the pipe surface. Then, the first motor 406 drives the first gear 405 to rotate, thereby driving the mounting bracket 403 to rotate the ultrasonic probe 404 on the surface of the first gear ring 402, moving it to the surface of the corrosion point. The ultrasonic probe 404 performs a precise scan on the initially captured corrosion point, collects reflected wave data, and analyzes the wave propagation time, amplitude, etc., to determine the depth, degree, and extent of corrosion. Based on the combined results of ultrasonic and visual data, the severity of corrosion is comprehensively analyzed. Combining the detection results of both improves the accuracy of corrosion assessment and reduces the false judgment rate.

[0033] Driven by dual motors 415, the bidirectional lead screw 413 rotates, causing the threaded blocks 414 on both sides to move away from each other, thus compressing the elastic airbag 510. This injects the gas from the elastic airbag 510 into the regulating cylinder 507, pushing the first piston 508 to move. The second connecting rod 509 then drives the branch pipe 505 to rotate, achieving adaptive adjustment of the nozzle 506 angle. Subsequently, the air pump 501 supplies air to the branch pipe 505, which is then sprayed onto the inner wall of the pipe through the nozzle 506, thereby cleaning the inner wall of the pipe and ensuring the scanning effect of the vision sensor 401. Furthermore, the dual motors 415 can drive the second gear ring 502 to reciprocate, thereby driving the nozzle 506 to rotate, achieving all-round cleaning of the inner wall of the pipe and improving the cleaning effect.

[0034] Once the corrosion point is determined by the ultrasonic probe 404, the telescopic cylinder 611 extends, pushing the second piston 610 to move. The second one-way valve 609 is activated, injecting the infrared coating in the suction cylinder 607 into the sponge block 604. Simultaneously, the drive plate 620 drives the spline sleeve 619 to move synchronously, so that the spline sleeve 619 simultaneously fits onto the surfaces of the first spline tooth 615 and the second spline tooth 618. Then, the second gear ring 502 and the sixth gear 617 drive the third gear ring 612 and the rotating disk 601 to rotate synchronously, coating the infrared coating on the surface of the sponge block 604 onto the inner wall of the pipe, thus marking the corrosion point. The corrosion location can then be quickly located by thermal imaging equipment based on changes in the pipe surface temperature, improving detection efficiency.

[0035] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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 special equipment pressure pipeline quality inspection device, comprising a frame (1) and a mounting plate (2), wherein the mounting plate (2) is installed between a plurality of frames (1), and a sliding rod (3) is also installed between the frames (1), characterized in that, The frame (1) is equipped with a detection mechanism (4) for detecting the pipeline. The detection mechanism (4) includes: A vision sensor (401) is mounted on one end of a mounting plate (2) for initially capturing corrosion spots on the surface of the pipe. The first gear ring (402) is fixedly installed on the surface of the middle frame (1), and a mounting bracket (403) is installed on the surface of the first gear ring (402). An ultrasonic probe (404) is mounted on the surface of a mounting bracket (403) for performing a depth scan on initially captured corrosion points; The first gear (405) is rotatably mounted in the inner cavity of the mounting bracket (403) and meshes with the first gear ring (402).

2. The special equipment pressure pipeline quality inspection device according to claim 1, characterized in that, The mounting bracket (403) has a first motor (406) fixedly mounted on its side wall. The output end of the first motor (406) is fixedly connected to the first gear (405) to drive the first gear (405) to rotate. The slide bar (3) has sliders (407) symmetrically slidably mounted on its surface. A synchronization frame (408) is fixedly mounted between adjacent sliders (407).

3. The special equipment pressure pipeline quality inspection device according to claim 2, characterized in that, A support frame (409) is hinged to the surface of the frame (1) at both ends. A drive wheel (410) is rotatably mounted on one end of the support frame (409). A second motor (411) is fixedly mounted on the side wall of the support frame (409). The output end of the second motor (411) is fixedly connected to the drive wheel (410) for driving the drive wheel (410) to rotate. A first connecting rod (412) is hinged between the support frame (409) and the slider (407).

4. The special equipment pressure pipeline quality inspection device according to claim 3, characterized in that, A bidirectional lead screw (413) is rotatably installed between the two ends of the frame (1). A threaded block (414) is fixedly installed on the surface of the slider (407). The threaded block (414) is threadedly connected to the bidirectional lead screw (413). A dual motor (415) is fixedly installed on the inner wall of the frame (1). A second gear (416) is installed on one output end of the dual motor (415). A third gear (417) is fixedly installed on the surface of the bidirectional lead screw (413). The third gear (417) meshes with the second gear (416).

5. The special equipment pressure pipeline quality inspection device according to claim 4, characterized in that, An auxiliary mechanism (5) is installed on the surface of the mounting plate (2) to assist the vision sensor (401) in scanning the surface of the pipe. The auxiliary mechanism (5) includes an air pump (501) and a second gear ring (502). The air pump (501) is installed on the surface of the mounting plate (2) for supplying air. The second gear ring (502) is rotatably installed in the inner cavity of the front frame (1). A fourth gear (503) is installed on the other output end of the dual motor (415). The fourth gear (503) meshes with the second gear ring (502) to drive the second gear ring (502) to rotate.

6. The special equipment pressure pipeline quality inspection device according to claim 5, characterized in that, A bracket (504) is fixedly installed on the side of the second gear ring (502). A branch pipe (505) is rotatably installed in the inner cavity of the bracket (504). A telescopic hose is connected between the branch pipe (505) and the air pump (501). A nozzle (506) is installed at the other end of the branch pipe (505).

7. A special equipment pressure pipeline quality inspection device according to claim 6, characterized in that, An adjusting cylinder (507) is rotatably installed inside the bracket (504). A first piston (508) is slidably installed inside the adjusting cylinder (507). A second connecting rod (509) is hinged between the first piston (508) and the branch pipe (505) for adjusting the angle of the branch pipe (505). An elastic airbag (510) is sleeved on the surface of the slide rod (3). A telescopic hose is connected between the elastic airbag (510) and the adjusting cylinder (507).

8. A special equipment pressure pipeline quality inspection device according to claim 7, characterized in that, The frame (1) is equipped with a marking mechanism (6) for marking corrosion points. The marking mechanism (6) includes a rotating disk (601) and a sleeve (602). The rotating disk (601) is rotatably mounted on the rear surface of the frame (1). The sleeve (602) is symmetrically mounted on the surface of the rotating disk (601). A telescopic rod (603) is slidably mounted in the inner cavity of the sleeve (602). A sponge block (604) is fixedly mounted on one end of the telescopic rod (603). A spring (605) is installed in the inner cavity of the sleeve (602). One end of the spring (605) is fixedly connected to the sleeve (602), and the other end of the spring (605) is fixedly connected to the telescopic rod (603) for driving the sponge block (604) to adhere tightly to the inner wall of the pipe.

9. A special equipment pressure pipeline quality inspection device according to claim 8, characterized in that, The mounting plate (2) is equipped with a paint tank (606) for storing infrared paint. The mounting plate (2) is equipped with a liquid extraction cylinder (607). The liquid extraction cylinder (607) is equipped with a first one-way valve (608) and a second one-way valve (609). The first one-way valve (608) is connected to the paint tank (606) by a pipe. The second one-way valve (609) is connected to the sponge block (604) by a hose. The liquid extraction cylinder (607) is slidably installed with a second piston (610) in its inner cavity. The mounting plate (2) is fixedly equipped with a telescopic cylinder (611). The telescopic end of the telescopic cylinder (611) is fixedly connected to the second piston (610).

10. A special equipment pressure pipeline quality inspection device according to claim 9, characterized in that, A third gear ring (612) is fixedly installed on the side wall of the rotating disk (601). A first rotating shaft (613) is rotatably installed on the side of the rear frame (1). A fifth gear (614) is fixedly installed on one end of the first rotating shaft (613), and the fifth gear (614) meshes with the third gear ring (612). A first spline tooth (615) is fixedly installed on the other end of the first rotating shaft (613). A second rotating shaft (616) is rotatably installed on the side wall of the front frame (1). The second rotating shaft (616) and the first rotating shaft (613) are coaxially arranged. A sixth gear (617) is fixedly installed at one end of the shaft (616), and the sixth gear (617) meshes with the second gear ring (502). A second spline tooth (618) is fixedly installed at the other end of the second shaft (616). A spline sleeve (619) is slidably sleeved on the surface of the second spline tooth (618). The spline sleeve (619) is adapted to the first spline tooth (615) and the second spline tooth (618). A drive plate (620) is installed between the spline sleeve (619) and the telescopic end of the telescopic cylinder (611) for driving the spline sleeve (619) to move.

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