An adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings

Abstract

This invention relates to the field of optical inspection technology, and in particular to an adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings. It includes a horizontal main base, with multiple lateral support wheel sets detachably mounted at both ends of the outer arc-shaped surface of the main base via bolts. A ring-shaped guide rail is fixedly installed in the middle of the outer arc-shaped surface via an external bracket; an internal adjusting ring is movably inserted into the ring-shaped guide rail. This invention, through the telescopic structure of the lateral support wheel sets and the elastic installation design of the lateral electric drive wheels, achieves adaptive support for stainless steel pipe fittings with different inner diameters. It eliminates the need to replace dedicated inspection equipment for different pipe fittings, exhibiting strong adaptability and significantly reducing inspection costs. Simultaneously, the lateral electric drive wheels can automatically move the device along the inside of the pipe fitting, overcoming the limitations of manual endoscopic inspection on pipe length, and is suitable for long-distance pipe inner wall inspection.

Description

Technical Field

[0001] This invention relates to the field of optical inspection technology, and in particular to an adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings. Background Technology

[0002] Stainless steel pipe fittings, as the name suggests, are tubular objects made of stainless steel. They are used to connect, turn, or control pipes. With their strength, corrosion resistance, and ease of cleaning, they are widely used in industries such as building water supply and drainage, gas transmission, fire protection systems, food and beverage, pharmaceuticals, and chemicals.

[0003] Because there are many specifications and types of stainless steel pipe fittings, the condition of the internal pipe wall directly affects the quality of the stainless steel pipe fittings. At present, the main method adopted is manual operation with an endoscope. This operation method not only has great limitations on the length of the pipe fittings, but also makes it easy to make mistakes and omissions in the intuitive visual observation. At the same time, it requires manual operation, which is not only time-consuming and labor-intensive, but also has a low degree of intelligence. Summary of the Invention

[0004] The technical problem to be solved by this invention is that the current main method for inspecting the inner wall of stainless steel pipe fittings is manual operation with an endoscope. This method not only has great limitations on the length of the pipe fittings, but also makes it easy to make mistakes and omissions through intuitive visual observation. In addition, it requires manual operation, which is not only time-consuming and labor-intensive, but also has a low degree of intelligence.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: an adaptive intelligent optical detection device for the inner wall of stainless steel pipe fittings, comprising a horizontal main base, with a plurality of lateral support wheel sets detachably mounted at both ends of the outer arc-shaped surface of the horizontal main base by bolts, and an annular guide rail fixedly mounted in the middle of the outer arc-shaped surface by an external bracket; an internal adjusting ring is movably inserted inside the annular guide rail, and an internal electric drive wheel and an internal support wheel are installed inside the internal adjusting ring; an optical scanning probe for AI information recognition is embedded in the outer arc-shaped surface; a power supply module and a control module are fixedly mounted inside the horizontal main base, the power supply module and the control module are electrically connected, and the control module is signal connected to and controls the operation of the lateral support wheel sets, the internal electric drive wheel, and the optical scanning probe respectively; lateral closing cover plates are threaded at both ends of the horizontal main base, and an external antenna for improving data transmission stability is installed at the outer end of the lateral closing cover plate, and the external antenna is signal connected to the control module.

[0006] Multiple power replenishment slots and internal threaded locking holes are provided at both ends of the outer arc-shaped surface of the horizontal main base. The power replenishment slots are equipped with power supply terminals, and the internal threaded locking holes are arranged around the power replenishment slots for fixing with the side support wheel set bolts.

[0007] The lateral support wheel assembly includes a lateral support frame, an internal assembly frame fixed to the connecting end of the lateral support frame, a lateral transmission frame fixed to the supporting end of the lateral support frame, and a lateral electric drive wheel elastically mounted on the side wall of the lateral transmission frame. The internal assembly frame is fixed with the internal thread locking hole bolts of the transverse main base. The lateral support frame is a telescopic structure, consisting of a first connecting frame fixed to the internal assembly frame and a second connecting frame fixed to the lateral transmission frame. The first connecting frame and the second connecting frame are detachably fixed and the telescopic length can be adjusted by bolts.

[0008] A strip-shaped groove is provided on the side wall of the lateral transmission frame. A strip-shaped slider is slidably assembled inside the strip-shaped groove. The lateral electric drive wheel is rotatably connected to the strip-shaped slider through a rotating shaft. A return spring is fixedly installed at both ends of the strip-shaped slider. The end of the return spring away from the strip-shaped slider is fixedly connected to the inner wall of the strip-shaped groove. The return spring is always in an elastic support state, so that the lateral electric drive wheel has radial adaptive extension and retraction capability.

[0009] A connection terminal is fixed on the internal assembly frame of the side support frame connection end. The connection terminal is adapted to and plugged into the power supply terminal inside the horizontal main base energy replenishment slot. The connection terminal is electrically connected to the side electric drive wheel through the power transmission line preset inside the side support frame and the strip slider, so as to realize the power supply module to supply power to the side electric drive wheel.

[0010] External LED lamp bodies are fixedly mounted on the side walls of the external bracket, lateral support frame, and lateral transmission frame. The external LED lamp bodies are electrically connected to the power supply module and signal connected to the control module, and their brightness can be adjusted through the control module.

[0011] Multiple optical scanning probes are provided, evenly distributed along the outer arc surface of the inner adjustment ring. The overlap rate of the detection angle of adjacent optical scanning probes is not less than 15%, ensuring no blind spots in the detection of the inner wall of the pipe. The optical scanning probe integrates an image acquisition module and an AI recognition module. The AI ​​recognition module is connected to the control module and can transmit the detection data to the control module in real time and receive control commands.

[0012] The internal electric drive wheels are provided in multiples and are evenly distributed along the inner side wall of the internal adjusting ring. The internal electric drive wheels roll in cooperation with the inner wall of the annular guide rail, driving the internal adjusting ring to rotate 360° along the annular guide rail. The internal support wheels are distributed at intervals with the internal electric drive wheels to support the internal adjusting ring and reduce rotational friction.

[0013] The power supply module is a rechargeable lithium battery pack, and a charging interface that is electrically connected to the power supply module is provided on the side wall of the horizontal main base; the control module integrates a data processing unit, a drive control unit and a wireless transmission unit, and the wireless transmission unit realizes remote data interaction with external terminals through an external antenna.

[0014] The beneficial effects of this invention are: (1) The present invention achieves adaptive support for stainless steel pipe fittings with different inner diameter specifications through the telescopic structure of the lateral support wheel set and the elastic installation design of the lateral electric drive wheel. It does not require the replacement of special testing equipment for different pipe fittings, has strong adaptability, and greatly reduces the testing cost. At the same time, the lateral electric drive wheel can drive the device to move automatically along the inside of the pipe fitting, breaking through the limitation of the length of the pipe fitting for manual endoscope testing, and is suitable for long-distance pipe fitting inner wall testing. (2) The optical scanning probe is evenly distributed along the internal adjustment ring and the detection angle overlaps. Combined with the 360° rotation driven by the built-in electric drive wheel, it can achieve a blind-angle coverage detection of the inner wall of the pipe fitting. The AI ​​recognition module is linked with the control module, which can automatically identify defects such as cracks, corrosion, and impurities on the inner wall. Compared with manual visual observation, it greatly reduces false detection and missed detection, and improves detection accuracy and intelligence. (3) The external LED lamp body can adjust the brightness through the control module to provide sufficient light source for detection under different lighting conditions, ensuring clear images acquired by the optical scanning probe and further ensuring detection accuracy; the power supply module uses a rechargeable lithium battery pack with a charging interface, which has strong battery life, and the wireless transmission unit realizes remote data interaction through an external antenna. Operators can view detection data and results in real time on an external terminal without close-range operation, saving time and effort; (4) Each component adopts a detachable assembly design, such as the bolt connection between the side support wheel group and the horizontal main base, and the fixing method between the internal assembly frame and the side support frame, which facilitates the disassembly, maintenance and component replacement of the equipment and extends the service life of the equipment; the reset spring is always in an elastic support state, so that the side electric drive wheel and the inner wall of the pipe are kept in stable contact, ensuring the stability of the device during movement and avoiding the impact of shaking on the detection effect. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

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

[0017] Figure 2 This is the front view of the present invention.

[0018] Figure 3 This is a schematic diagram of the internal structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the internal structure of the lateral support wheel assembly in this invention.

[0020] Figure 5 This is a schematic diagram of the internal structure of the internal adjustment ring in this invention.

[0021] 1. Horizontal main base; 2. Lateral support wheel assembly; 3. External bracket; 4. Circular guide rail; 5. Internal adjusting ring; 6. Built-in electric drive wheel; 7. Built-in support wheel; 8. Optical scanning probe; 9. Power supply module; 10. Control module; 11. Lateral closing cover; 12. External antenna; 13. Power replenishment slot; 14. Internal threaded locking hole; 15. External LED lamp body; 16. Charging interface; 17. Lateral support frame; 18. Internal assembly frame; 19. Lateral transmission frame; 20. Lateral electric drive wheel; 21. Lateral support frame; 211. First connecting frame; 212. Second connecting frame; 22. Internal assembly frame; 23. Lateral transmission frame; 24. Lateral electric drive wheel; 25. Strip-shaped slide; 26. Strip-shaped slider; 27. Return spring; 28. Connecting terminal. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The stainless steel pipe fitting inner wall adaptive intelligent optical inspection device shown includes a horizontal main base 1. Three lateral support wheel sets 2 are detachably mounted on both ends of the outer arc-shaped surface of the horizontal main base 1 via bolts. An annular guide rail 4 is fixedly installed in the middle of the outer arc-shaped surface via an external bracket 3. An internal adjusting ring 5 is movably inserted inside the annular guide rail 4. An internal electric drive wheel 6 and an internal support wheel 7 are installed inside the internal adjusting ring 5. An optical scanning probe 8 for AI information recognition is embedded in the outer arc-shaped surface. A power supply module 9 and a control module 10 are fixedly mounted inside the horizontal main base 1. The power supply module 9 is electrically connected to the control module 10. The control module 10 is signal-connected to the lateral support wheel sets 2, the internal electric drive wheel 6, and the optical scanning probe 8, and controls their operation. Lateral closing cover plates 11 are threaded onto both ends of the horizontal main base 1. An external antenna 12 for improving data transmission stability is installed on the outer end of the lateral closing cover plate 11. The external antenna 12 is signal-connected to the control module 10.

[0025] Multiple power replenishment slots 13 and internal threaded locking holes 14 are provided at both ends of the outer arc-shaped surface of the horizontal main base 1. The power replenishment slots 13 are equipped with power supply terminals. The internal threaded locking holes 14 are arranged around the power replenishment slots 13 and are used to fix them to the side support wheel sets 2 with bolts. During assembly, the installation position of the side support wheel sets 2 can be accurately positioned through the internal threaded locking holes 14 to ensure that each side support wheel set 2 is subjected to uniform force.

[0026] The lateral support wheel assembly 2 includes a lateral support frame 21, an internal assembly frame 22 fixed to the connecting end of the lateral support frame 21, a lateral transmission frame 23 fixed to the supporting end of the lateral support frame 21, and a lateral electric drive wheel 24 elastically mounted on the side wall of the lateral transmission frame 23. The internal assembly frame 22 is bolted to the internal thread locking hole 14 of the horizontal main base 1, which is convenient for disassembly and assembly and easy for maintenance. The lateral support frame 21 is a telescopic structure, consisting of a first connecting frame 211 fixed to the internal assembly frame 22 and a second connecting frame 212 fixed to the lateral transmission frame 23. The first connecting frame 211 and the second connecting frame 212 are detachably fixed and the telescopic length can be adjusted by bolts. In actual use, the bolts can be loosened to adjust the overlap length of the first connecting frame 211 and the second connecting frame 212 according to the inner diameter of the pipe, and then the bolts can be tightened to fix it, so that the lateral electric drive wheel 24 can fit against the inner wall of pipes with different inner diameters.

[0027] A strip groove 25 is provided on the side wall of the lateral transmission frame 23. A strip slider 26 is slidably assembled inside the strip groove 25. The lateral electric drive wheel 24 is rotatably connected to the strip slider 26 through a rotating shaft. A return spring 27 is fixedly installed at both ends of the strip slider 26. The end of the return spring 27 away from the strip slider 26 is fixedly connected to the inner wall of the strip groove 25. The return spring 27 is always in an elastic support state, so that the lateral electric drive wheel 24 has the ability to radially adapt to expansion and contraction. When the device encounters a slight bulge or depression in the inner wall of the pipe during movement, the return spring 27 can drive the strip slider 26 to slide along the strip groove 25 through expansion and contraction, thereby driving the lateral electric drive wheel 24 to adaptively adjust its position and always keep it in contact with the inner wall of the pipe to ensure smooth movement.

[0028] A connection terminal 28 is fixed on the internal assembly frame 22 of the side support frame 21. The connection terminal 28 is adapted to the power supply terminal inside the power supply slot 13 of the horizontal main base 1. The connection terminal 28 is electrically connected to the side electric drive wheel 24 through the power transmission line preset inside the side support frame 21 and the strip slider 26, so as to realize the power supply module 9 to supply power to the side electric drive wheel 24. With this plug-in power supply structure, when disassembling the side support wheel assembly 2, the circuit can be disconnected simply by pulling out the connection terminal 28, which is convenient to operate and highly safe.

[0029] External LED lamp bodies 15 are fixedly mounted on the side walls of the external bracket 3, the lateral support frame 21, and the lateral transmission frame 23. The external LED lamp bodies 15 are electrically connected to the power supply module 9 and signal connected to the control module 10. The brightness can be adjusted by the control module 10. Before detection, according to the cleanliness of the inner wall of the pipe and the light requirements, the external terminal can send a command to the control module 10 to adjust the brightness of the external LED lamp bodies 15, so as to ensure that the optical scanning probe 8 can collect a clear image of the inner wall and improve the detection accuracy.

[0030] The optical scanning probe 8 is located on the outer arc-shaped surface of the inner adjustment ring 5. The overlap rate of the detection angles of adjacent optical scanning probes 8 is not less than 15%, ensuring that the inner wall of the pipe is covered without blind spots and avoiding missed detections due to blind spots. The optical scanning probe 8 integrates an image acquisition module and an AI recognition module. The AI ​​recognition module is connected to the control module 10 and can transmit the detection data to the control module 10 in real time and receive control commands. After the image acquisition module acquires the image of the inner wall of the pipe, the AI ​​recognition module can quickly identify defects such as cracks, corrosion, and impurities in the image and transmit the defect location, size and other information to the control module 10. Then, it is sent to the external terminal through the wireless transmission unit and the external antenna 12 for the operator to view in real time.

[0031] The built-in electric drive wheels 6 are provided in multiples and are evenly distributed along the inner sidewall of the inner adjusting ring 5. The built-in electric drive wheels 6 roll in cooperation with the inner wall of the annular guide rail 4, driving the inner adjusting ring 5 to rotate 360° along the annular guide rail 4. The built-in support wheels 7 are distributed at intervals with the built-in electric drive wheels 6 to support the inner adjusting ring 5 and reduce rotational friction, ensuring that the rotation process of the inner adjusting ring 5 is smooth, thereby ensuring the detection stability of the optical scanning probe 8 and avoiding image blurring or detection errors caused by rotational shaking.

[0032] The power supply module 9 is a rechargeable lithium battery pack. A charging interface 16, which is electrically connected to the power supply module 9, is provided on the side wall of the horizontal main base 1. When the power supply module 9 is low on power, it can be charged by connecting a charger through the charging interface 16, making it convenient to extend its battery life. The control module 10 integrates a data processing unit, a drive control unit, and a wireless transmission unit. The wireless transmission unit realizes remote data interaction with an external terminal through an external antenna 12. The operator can send control commands through the external terminal. After receiving the commands, the drive control unit of the control module 10 drives each component to perform corresponding operations. The data processing unit can process and analyze the detection data transmitted by the optical scanning probe 8, and then feed it back to the external terminal through the wireless transmission unit to realize remote control and data viewing.

[0033] During the inspection, the telescopic length of the lateral support frame 21 is first adjusted according to the inner diameter of the stainless steel pipe to be inspected, so that the lateral electric drive wheel 24 can fit against the inner wall of the pipe. Then, the device is placed at one end of the pipe, and a start command is sent through the external terminal. After receiving the command, the control module 10 drives the lateral electric drive wheel 24 to rotate, causing the device to move at a constant speed along the inside of the pipe. At the same time, it drives the built-in electric drive wheel 6 to rotate, causing the internal adjusting ring 5 to rotate along the annular guide rail 4, so that the optical scanning probe 8 can perform a 360° scan of the inner wall of the pipe without blind spots. The external LED lamp body 15 is turned on simultaneously and maintains the preset brightness to provide sufficient light source for scanning. The optical scanning probe 8 acquires the inner wall image in real time and identifies defects through the AI ​​recognition module. The inspection data is transmitted to the control module 10 and then remotely fed back to the external terminal. After the inspection is completed, the operator can send a stop command through the external terminal, and the device stops moving and scanning. Then, the device can be removed from the other end of the pipe, or the device can be controlled to move back to the initial position.

[0034] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings, comprising a horizontally placed main base (1), characterized in that: The horizontal main base (1) has multiple lateral support wheel sets (2) detachably mounted at both ends of its outer arc-shaped surface via bolts. A ring guide rail (4) is fixedly mounted in the middle of the outer arc-shaped surface via an external bracket (3). An internal adjusting ring (5) is movably inserted into the ring guide rail (4). An internal electric drive wheel (6) and an internal support wheel (7) are installed inside the internal adjusting ring (5). An optical scanning probe (8) for AI information recognition is embedded in the outer arc-shaped surface. The horizontal main base (1) is fixedly assembled with... There is a power supply module (9) and a control module (10). The power supply module (9) and the control module (10) are electrically connected. The control module (10) is connected to the side support wheel group (2), the built-in electric drive wheel (6), and the optical scanning probe (8) respectively and controls their operation. The horizontal main base (1) is threaded with a side closing cover plate (11) at both ends. An external antenna (12) to improve the stability of data transmission is installed on the outer end of the side closing cover plate (11). The external antenna (12) is connected to the control module (10) by signal.

2. The adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings according to claim 1, characterized in that: The horizontal main base (1) has multiple energy replenishment slots (13) and internal thread locking holes (14) at both ends of the outer arc surface. The energy replenishment slots (13) are equipped with power supply terminals, and the internal thread locking holes (14) are arranged around the energy replenishment slots (13) for bolting with the lateral support wheel assembly (2).

3. The adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings according to claim 2, characterized in that: The lateral support wheel assembly (2) includes a lateral support frame (21), an internal assembly frame (22) fixed to the connecting end of the lateral support frame (21), a lateral transmission frame (23) fixed to the supporting end of the lateral support frame (21), and a lateral electric drive wheel (24) elastically mounted on the side wall of the lateral transmission frame (23). The internal assembly frame (22) is bolted to the internal thread locking hole (14) of the horizontal main base (1). The lateral support frame (21) is a telescopic structure, consisting of a first connecting frame (211) fixed to the internal assembly frame (22) and a second connecting frame (212) fixed to the lateral transmission frame (23). The first connecting frame (211) and the second connecting frame (212) are detachably fixed and the telescopic length can be adjusted by bolts.

4. The adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings according to claim 3, characterized in that: The side wall of the lateral transmission frame (23) is provided with a strip groove (25), and a strip slider (26) is slidably assembled inside the strip groove (25). The lateral electric drive wheel (24) is rotatably connected to the strip slider (26) through a rotating shaft. Both ends of the strip slider (26) are fixedly installed with a return spring (27). The end of the return spring (27) away from the strip slider (26) is fixedly connected to the inner wall of the strip groove (25). The return spring (27) is always in an elastic support state, so that the lateral electric drive wheel (24) has radial adaptive extension and retraction capability.

5. The adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings according to claim 3, characterized in that: A connection terminal (28) is fixed on the internal assembly frame (22) of the connecting end of the side support frame (21). The connection terminal (28) is adapted to the power supply terminal inside the power supply slot (13) of the horizontal main base (1). The connection terminal (28) is electrically connected to the side electric drive wheel (24) through the power transmission line preset inside the side support frame (21) and the strip slider (26), so as to realize the power supply module (9) to the side electric drive wheel (24).

6. The adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings according to claim 3, characterized in that: External LED lamp bodies (15) are fixedly mounted on the side walls of the external bracket (3), the lateral support frame (21) and the lateral transmission frame (23). The external LED lamp bodies (15) are electrically connected to the power supply module (9) and signal connected to the control module (10). The brightness can be adjusted by the control module (10).

7. The adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings according to claim 1, characterized in that: The optical scanning probe (8) is provided in multiples and is evenly distributed along the outer arc surface of the inner adjustment ring (5). The overlap rate of the detection angle of adjacent optical scanning probes (8) is not less than 15%, ensuring that the inner wall of the pipe is covered without dead angles. The optical scanning probe (8) integrates an image acquisition module and an AI recognition module. The AI ​​recognition module is connected to the control module (10) and can transmit the detection data to the control module (10) in real time and receive control commands.

8. The adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings according to claim 1, characterized in that: The built-in electric drive wheel (6) has a plurality of units, which are evenly distributed along the inner sidewall of the inner adjusting ring (5). The built-in electric drive wheel (6) rolls with the inner wall of the annular guide rail (4), driving the inner adjusting ring (5) to rotate 360° along the annular guide rail (4). The built-in support wheel (7) is distributed at intervals with the built-in electric drive wheel (6) to support the inner adjusting ring (5) and reduce rotational friction.

9. The adaptive intelligent optical inspection device for the inner wall of stainless steel pipe fittings according to claim 1, characterized in that: The power supply module (9) is a rechargeable lithium battery pack. A charging interface (16) electrically connected to the power supply module (9) is provided on the side wall of the horizontal main base (1). The control module (10) integrates a data processing unit, a drive control unit and a wireless transmission unit. The wireless transmission unit realizes remote data interaction with an external terminal through an external antenna (12).

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