Visualizing a pig

Abstract

This utility model relates to the field of pipeline inspection technology, and in particular to a visual pipeline pig, comprising: a main body, with a sealing disc at the front end and a first support disc at the rear end, the first support disc having a hollow portion; a mileage measuring wheel connected to the main body and located between the sealing disc and the first support disc; and a camera device mounted at the rear end of the main body. Gas is injected into the pipeline, and the gas acts on the sealing disc through the hollow portion of the first support disc, directly pushing the sealing disc forward. This, in turn, propels the front end of the visual intelligent pipeline pig forward, avoiding the problem of insufficient power at the front end of the pig due to pressure pushing from the rear end. Simultaneously, the rear-mounted camera device avoids the risk of colliding with pipeline blind flanges, improving the lifespan of the camera device.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection technology, and in particular to a visual pipeline cleaning device. Background Technology

[0002] Currently, oil and gas fields generally employ a process of co-transporting gas and liquid through buried pipelines from each gas gathering station to the main purification plant. However, with increasing service life, numerous internal metal loss defects have been found in buried acid gas pipelines outside the gas gathering stations. Excavation and inspection revealed that the corrosion defects are mainly characterized by surface corrosion and pitting corrosion, with the primary cause being liquid accumulation corrosion. To visually investigate and demonstrate the actual situation of liquid accumulation and corrosion in buried acid gas pipelines, and to study the corrosion development patterns of buried pipelines, it is necessary to achieve visualization of the corrosion defects and morphologies of buried acid gas pipelines.

[0003] Currently, some devices used for pipeline defect detection, such as the Chinese patent with publication number CN207751514U, disclose a pipeline endoscopic inspection device, including a support cylinder with support cups at both ends. By inputting gas into the pipeline to pressurize it, the gas pushes the support cup at the rear end of the support cylinder, causing the support cylinder to move forward. At the same time, a camera device is installed at the front end of the support cylinder. However, because the rear end of the support cylinder is pushed by gas, the front end of the support cylinder is prone to insufficient power, causing the support cylinder to run poorly in the pipeline and affecting the inspection operation. In addition, the camera device is installed at the front end of the support cylinder, which is prone to collision and damage with the blind flange in the pipeline. Utility Model Content

[0004] The purpose of this utility model is to provide a visual pipeline inspection device, which addresses the problems in the prior art where the pipeline inspection device uses gas to push the rear end of the support cylinder, which easily leads to insufficient power at the front end of the support cylinder, causing the support cylinder to run poorly in the pipeline and affecting the inspection operation. At the same time, the camera device is installed at the front end of the support cylinder and is easily damaged by the blind flange in the pipeline.

[0005] This utility model provides a visual pigging tool, comprising:

[0006] The main body has a sealing disk at its front end and a first support disk at its rear end, with a hollowed-out portion on the first support disk.

[0007] A mileage measuring wheel is connected to the main body and is located between the sealing disc and the first support disc.

[0008] A camera device, which is mounted at the rear end of the main body.

[0009] The visualized intelligent pipeline cleaning device described in this application includes a main body with a sealing disc at the front end and a first support disc at the rear end. The first support disc has a perforated portion. During use, the main body is placed into the pipeline, and the sealing disc at the front end abuts against the inner wall of the pipeline, ensuring tight contact and guaranteeing the pipeline cleaning device's airtightness within the pipeline, reducing the possibility of gas leakage. Simultaneously, the first support disc at the rear end, together with the sealing disc, supports the main body, preventing it from shifting or becoming unbalanced within the pipeline, enhancing overall stability, and ensuring the main body is positioned in the middle of the pipeline. Furthermore, the perforated portion on the first support disc allows gas to be injected into the pipeline. The gas acts on the sealing disc through the perforated portion, directly pushing the sealing disc forward using air pressure, thereby driving the visualized intelligent pipeline cleaning device. The intelligent pig moves its front end using pneumatic-assisted propulsion, avoiding the problem of insufficient power at the front end that might occur when the rear end is pushed by pneumatic pressure, compared to conventional pigs that rely on pneumatic pressure to move the rear end. Furthermore, the mileage measuring wheel is located between the sealing disc and the first support disc. Supported by these discs, the movement of the mileage measuring wheel is more stable and smooth, reducing the risk of jumping or instability due to uneven support. Simultaneously, the combination of the sealing disc, the first support disc, and the mileage measuring wheel makes the entire pig structure more compact and ensures more precise coordination between components, avoiding complex structural designs or unnecessary space waste. Finally, the camera device is installed at the rear of the main body. This rear-mounted camera avoids the risk of colliding with pipeline blind flanges and extends the camera's lifespan.

[0010] Preferably, the mileage measuring wheel is arranged at intervals around the main body.

[0011] Preferably, the number of the mileage measuring wheels is not less than three.

[0012] Preferably, it also includes a lighting lamp disposed at the rear end of the main body, which provides a light source for the camera device so that the camera device can clearly photograph the defective part inside the pipe.

[0013] Preferably, it further includes a mounting cylinder, the mounting cylinder portion being located inside the main body, and the camera device and the lighting lamp being disposed within the mounting cylinder.

[0014] Preferably, the system further includes a second support plate disposed on the main body. The second support plate is installed at the front end of the main body and is located behind the sealing plate. The second support plate is provided with the hollow portion.

[0015] Preferably, it further includes a guide disc disposed on the main body, the guide disc being installed at the front end of the main body and located in front of the sealing disc.

[0016] Preferably, the main body includes a first steel cylinder and a second steel cylinder that are movably connected to each other, the sealing disc is installed at the end of the first steel cylinder away from the second steel cylinder, and the first support disc is installed at the end of the second steel cylinder away from the first steel cylinder.

[0017] Preferably, a third support plate is installed at one end of the first steel cylinder near the second steel cylinder, and the third support plate is also installed at one end of the second steel cylinder near the first steel cylinder, and the third support plate is provided with the hollow portion.

[0018] Preferably, the system further includes a cable chain, through which the first steel cylinder and the second steel cylinder are connected.

[0019] Preferably, the odometer wheel is mounted on the first steel cylinder.

[0020] or;

[0021] The mileage measuring wheel is mounted on the second steel cylinder.

[0022] Preferably, the main body includes a third steel cylinder, the sealing disc is installed at one end of the third steel cylinder, and the first support disc is installed at the other end of the third steel cylinder.

[0023] The mileage measuring wheel is connected to the third steel cylinder, and the camera device is installed at the end of the third steel cylinder away from the sealing disc.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] The visualized intelligent pipeline cleaning device described in this application includes a main body with a sealing disc at the front end and a first support disc at the rear end. The first support disc has a perforated portion. During use, the main body is placed into the pipeline, and the sealing disc at the front end abuts against the inner wall of the pipeline, ensuring tight contact and guaranteeing the pipeline cleaning device's airtightness within the pipeline, reducing the possibility of gas leakage. Simultaneously, the first support disc at the rear end, together with the sealing disc, supports the main body, preventing it from shifting or becoming unbalanced within the pipeline, enhancing overall stability, and ensuring the main body is positioned in the middle of the pipeline. Furthermore, the perforated portion on the first support disc allows gas to be injected into the pipeline. The gas acts on the sealing disc through the perforated portion, directly pushing the sealing disc forward using air pressure, thereby driving the visualized intelligent pipeline cleaning device. The intelligent pig moves its front end using pneumatic-assisted propulsion, avoiding the problem of insufficient power at the front end that might occur when the rear end is pushed by pneumatic pressure, compared to conventional pigs that rely on pneumatic pressure to move the rear end. Furthermore, the mileage measuring wheel is located between the sealing disc and the first support disc. Supported by these discs, the movement of the mileage measuring wheel is more stable and smooth, reducing the risk of jumping or instability due to uneven support. Simultaneously, the combination of the sealing disc, the first support disc, and the mileage measuring wheel makes the entire pig structure more compact and ensures more precise coordination between components, avoiding complex structural designs or unnecessary space waste. Finally, the camera device is installed at the rear of the main body. This rear-mounted camera avoids the risk of colliding with pipeline blind flanges and extends the camera's lifespan. Attached Figure Description

[0026] Figure 1 This is a front view of the visualized intelligent pipeline cleaning device of this application.

[0027] Figure 2 yes Figure 1 Sectional view at point AA.

[0028] Figure 3 It is a 3D view of a visualized intelligent pipeline cleaning device.

[0029] Figure 4 It is a preferred method for visual intelligent pipeline cleaning.

[0030] Figure 5 yes Figure 4 Sectional view at BB.

[0031] Figure 6 This is a schematic diagram of a visualized intelligent pipeline cleaning device in a pipeline.

[0032] Figure 7 This is a schematic diagram of a preferred method of visual intelligent pipeline cleaning in a pipeline.

[0033] Figure 8 This is a schematic diagram showing the combination of the mounting tube, camera device, and lighting.

[0034] Figure 9 This is a 3D view of the mounting cylinder.

[0035] Figure 10 This is a schematic diagram of the camera device and lighting.

[0036] Marked in the image:

[0037] 1-Main body, 101-First steel cylinder, 1011-First inner compartment, 102-Second steel cylinder, 1021-Second inner compartment, 103-Third steel cylinder, 1031-Third inner compartment, 2-Distance measuring wheel, 3-Camera device, 31-Camera, 32-Fixing plate, 4-Sealing plate, 5-First support plate, 6-Second support plate, 7-Third support plate, 8-Guide plate, 9-Drag chain, 10-Hollowed part, 20-Pipe, 30-Lighting lamp, 40-Sealing cover, 50-Mounting cylinder, 510-Cylinder body, 520-Annular part, 530-Inner cavity, 540-Mounting groove. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0039] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0040] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0041] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0042] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0043] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0044] Example 1

[0045] like Figures 1-5 As shown in the figure, the visual pig described in this embodiment includes:

[0046] The main body 1 has a sealing plate 4 at its front end, which is used to abut against the inner wall of the pipe 20. The main body 1 has a first support plate 5 at its rear end, which has a hollow part 10.

[0047] The odometer wheel 2 is connected to the main body 1 and is located between the sealing disk 4 and the first support disk 5.

[0048] Camera device 3 is installed at the rear end of the main body 1.

[0049] When using, such as Figure 6 , Figure 7 As shown, the main body 1 is placed in the pipeline 20. The sealing disc 4 at the front end of the main body 1 abuts against the inner wall of the pipeline 20, ensuring a tight seal between the sealing disc 4 and the inner wall of the pipeline 20. This reduces the possibility of gas leakage. Simultaneously, a first support disc 5 is provided at the rear end of the main body 1. The first support disc 5 and the sealing disc 4 jointly support the main body 1, preventing it from shifting or becoming unbalanced within the pipeline 20, enhancing overall stability, and ensuring the main body 1 is positioned in the middle of the pipeline 20. Furthermore, the first support disc 5 has a perforated section 10. Gas is injected into the pipeline 20, and the gas acts on the sealing disc 4 through the perforated section 10, directly pushing the sealing disc 4 forward with air pressure. This air pressure then pushes the front end of the visual intelligent pipeline pig forward, achieving gas... The pressure-assisted forward-driven movement method avoids the problem of insufficient power at the front end of the pig that may be caused by the rear end being pushed by air pressure, compared to the conventional method of pushing the rear end of the pig by air pressure. Furthermore, the mileage measuring wheel 2 is located between the sealing disc 4 and the first support disc 5. With the support of the sealing disc 4 and the first support disc 5, the movement of the mileage measuring wheel 2 can be more stable and smooth, reducing the possibility of the mileage measuring wheel jumping or instability due to uneven support. At the same time, the combination of the sealing disc 4, the first support disc 5 and the mileage measuring wheel 2 makes the structure of the entire pig more compact and ensures more precise cooperation between the components, avoiding complex structural design or unnecessary space waste. Furthermore, the camera device 3 is installed at the rear end of the main body 1. The rear-mounted camera device 3 can avoid the risk of colliding with the pipeline blind flange and improve the service life of the camera device 3.

[0050] like Figure 6 , Figure 7 As shown, in this application, with reference to the moving direction of the pig (to the left), the front end of the main body 1 refers to the left side of the main body 1, and the rear end of the main body 1 refers to the right side of the main body 1.

[0051] In one or more implementations, such as Figure 1 , Figure 4As shown, it also includes a second support plate 6 disposed on the main body 1. The second support plate 6 is installed at the front end of the main body 1 and is located behind the sealing plate 4. The second support plate 6 is provided with a hollow part 10.

[0052] By setting a second support plate 6 at the front end of the main body 1, the support points of the main body 1 in the pipeline 20 are increased, thereby improving the stability of the visual intelligent pipeline cleaning device, avoiding uneven force or displacement caused by inertia in the pipeline 20, and ensuring the smooth operation of the visual intelligent pipeline cleaning device in the pipeline 20.

[0053] In an optional embodiment, a guide disk 8 is also provided on the main body 1. The guide disk 8 is installed at the front end of the main body 1 and is located in front of the sealing disk 4.

[0054] The guide plate 8 effectively prevents the visual intelligent pig from unnecessary lateral displacement within the pipeline 20. The guide plate 8 guides the visual intelligent pig to maintain straight-line movement, preventing lateral displacement or jamming, thereby improving the operational capability of the visual intelligent pig.

[0055] In one or more implementations, such as Figure 1 , Figure 4 As shown, the mileage measuring wheels 2 are spaced circumferentially around the main body 1. By arranging the mileage measuring wheels 2 at intervals around the main body 1, distance measurement is performed through the circumferentially arranged mileage measuring wheels 2 during the movement of the visualized intelligent pig, thereby effectively reducing measurement errors.

[0056] In an optional implementation, the number of mileage measuring wheels 2 is no less than 3.

[0057] In an optional embodiment, the diameters of the first support plate 5, the second support plate 6, and the third support plate 7 are 0.85 to 0.95 times the diameter of the pipe 20.

[0058] In an optional embodiment, the diameter of the guide plate 8 is 0.8 to 0.9 times the diameter of the pipe 20.

[0059] In an optional embodiment, the first support plate 5, the second support plate 6, and the third support plate 7 are made of rubber.

[0060] In an optional embodiment, the guide plate 8 is made of rubber.

[0061] In an optional embodiment, the sealing disc 4 is made of rubber.

[0062] In an optional implementation, the mileage measuring wheel 2 uses a Hall sensor pulse ranging to improve measurement accuracy.

[0063] In optional implementations, such as Figure 3 , Figure 5 As shown, it also includes a lighting lamp 30, which is located at the rear end of the main body 1. The lighting lamp 30 provides a light source for the camera device 3 so that the camera device 3 can clearly photograph the defective part inside the pipe 20.

[0064] In an optional implementation, the camera device 3 is an action camera.

[0065] In one or more implementations, such as Figures 2-3 , Figure 5 As shown, it also includes an installation cylinder 50, which is located inside the main body 1. The camera device 3 and the lighting lamp 30 are installed inside the installation cylinder 50, and the installation cylinder 50 is sealed by a sealing cover 40. The sealing cover 40 has a hollow area in the middle. The camera 31 of the camera device 3 and the lighting lamp 30 are both installed on a fixing plate 32. The fixing plate 32 is adapted to the shape of the hollow area so that the camera 31 and the lighting lamp 30 can take pictures and illuminate the pipe 20 outside the sealing cover 40.

[0066] The camera device 3 and the lighting lamp 30 are placed in the mounting cylinder 50. When they need to be removed, they can be removed by simply taking out the mounting cylinder 50, which avoids directly installing the camera device 3 and the lighting lamp 30 inside the main body 1, and facilitates maintenance and replacement.

[0067] In optional implementations, such as Figures 8-10 As shown, the mounting cylinder 50 includes a cylindrical body 510 and an annular portion 520 connected to each other. The cylindrical body 510 is located inside the main body 1, and the annular portion 520 is connected to the rear end of the main body 1. The cylindrical body 510 has an inner cavity 530 for placing the camera device 3 and the power supply. The annular portion 520 has a mounting groove 540 for fixing the camera device 3 and the lighting lamp 30. The sealing cover 40 is fixed to the annular portion 520 by bolts.

[0068] Example 2

[0069] Based on Example 1, such as Figures 1-3 As shown in the figure, the visual pigging device described in this embodiment includes a main body 1 comprising a first steel cylinder 101 and a second steel cylinder 102 that are movably connected to each other, a sealing disc 4 installed at the end of the first steel cylinder 101 away from the second steel cylinder 102, and a first support disc 5 installed at the end of the second steel cylinder 102 away from the first steel cylinder 101.

[0070] In one or more implementations, such as Figure 2 As shown, a third support plate 7 is installed at one end of the first steel cylinder 101 near the second steel cylinder 102, and a third support plate 7 is also installed at one end of the second steel cylinder 102 near the first steel cylinder 101. The third support plate 7 is provided with a hollow part 10.

[0071] In an optional embodiment, in this application, the hollowed-out portion 10 can be in the shape of a circular hole, a rectangle, or the like.

[0072] In optional implementations, such as Figure 3 As shown, it also includes a cable chain 9, and the first steel cylinder 101 and the second steel cylinder 102 are connected by the cable chain 9.

[0073] In optional implementations, such as Figure 1 , Figure 2 As shown, the odometer wheel 2 is mounted on the first steel cylinder 101.

[0074] or;

[0075] The mileage measuring wheel 2 is mounted on the second steel cylinder 102.

[0076] In optional implementations, such as Figure 3 As shown, the interior of the second steel cylinder 102 is provided with a second inner compartment 1021, which houses the camera device 3 and the lighting lamp 30. At the same time, the second inner compartment 1021 is also equipped with a battery to provide power to the camera device 3 and the lighting lamp 30.

[0077] In optional implementations, such as Figure 3 As shown, a first inner chamber 1011 is provided on the first steel cylinder 101. Temperature sensors and pressure sensors are installed in the first inner chamber 1011 for multi-data acquisition applications, ensuring the multi-modal data analysis application of the intelligent pig.

[0078] In optional implementations, such as Figure 2 , Figure 3 As shown, the cylinder 510 of the installation cylinder 50 is displaced into the second inner compartment 1021. The annular part 520 of the installation cylinder 50 is connected to the end of the second steel cylinder 102 away from the first steel cylinder 101. The camera device 3 and the lighting lamp 30 are installed inside the installation cylinder 50, and the installation cylinder 50 is sealed by the sealing cover 40. The sealing cover 40 has a hollow area in the middle. The camera 31 of the camera device 3 and the lighting lamp 30 are both installed on the fixing plate 32. The fixing plate 32 is adapted to the shape of the hollow area so that the camera 31 and the lighting lamp 30 can take pictures and illuminate the pipe 20 outside the sealing cover 40.

[0079] The cylinder 510 has an inner cavity 530 for housing the camera device 3 and the power supply. The annular portion 520 has a mounting groove 540 for fixing the camera device 3 and the lighting lamp 30. The sealing cover 40 is fixed to the annular portion 520 by bolts.

[0080] Example 3

[0081] Based on Example 1, such as Figure 4 , Figure 5As shown in the figure, the visual pig described in this embodiment includes a main body 1 comprising a third steel cylinder 103, a sealing disc 4 installed at one end of the third steel cylinder 103, and a first support disc 5 installed at the other end of the third steel cylinder 103.

[0082] The mileage measuring wheel 2 is connected to the third steel cylinder 103, and the camera device 3 is installed at the end of the third steel cylinder 103 away from the sealing disc 4.

[0083] In optional implementations, such as Figure 5 As shown, the third steel cylinder 103 is equipped with a third inner chamber 1031, which is used to house the camera device 3, the lighting lamp 30 and the battery. The battery is used to provide power to the camera device 3 and the lighting lamp 30. It also includes a temperature sensor and a pressure sensor installed in the third inner chamber 1031. The temperature sensor and pressure sensor are used for multi-data acquisition applications to ensure the multi-modal data analysis application of the intelligent pig.

[0084] In optional implementations, such as Figure 5 As shown, the cylinder 510 of the installation cylinder 50 is displaced into the third inner compartment 1031. The annular part 520 of the installation cylinder 50 is connected to the end of the third steel cylinder 103 away from the sealing plate 4. The camera device 3 and the lighting lamp 30 are installed inside the installation cylinder 50, and the installation cylinder 50 is sealed by the sealing cover 40. The middle part of the sealing cover 40 is a hollow area. The camera 31 of the camera device 3 and the lighting lamp 30 are both installed on the fixing plate 32. The fixing plate 32 is adapted to the shape of the hollow area so that the camera 31 and the lighting lamp 30 can take pictures and illuminate the pipe 20 outside the sealing cover 40.

[0085] The cylinder 510 has an inner cavity 530 for housing the camera device 3 and the power supply. The annular portion 520 has a mounting groove 540 for fixing the camera device 3 and the lighting lamp 30. The sealing cover 40 is fixed to the annular portion 520 by bolts.

[0086] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A visualizing pig, characterized in that, include: The main body (1) has a sealing plate (4) at its front end, which is used to abut against the inner wall of the pipe (20). The main body (1) has a first support plate (5) at its rear end, which has a hollow part (10). Mileage measuring wheel (2), the mileage measuring wheel (2) is connected to the main body (1), and the mileage measuring wheel (2) is located between the sealing disk (4) and the first support disk (5); A camera device (3) is installed at the rear end of the main body (1).

2. A visualizing pipe pig according to claim 1, characterized in that, It also includes a second support plate (6) disposed on the main body (1), the second support plate (6) is installed at the front end of the main body (1), and the second support plate (6) is located behind the sealing plate (4), and the second support plate (6) is provided with the hollow part (10).

3. A visualizing pig according to claim 2, characterized in that It also includes a guide disk (8) disposed on the main body (1), the guide disk (8) being installed at the front end of the main body (1) and the guide disk (8) being located in front of the sealing disk (4).

4. The visualizing pipe pig of claim 1, wherein, It also includes a lighting lamp (30) disposed at the rear end of the main body (1).

5. The visualizing pipe pig according to claim 4, characterized in that, It also includes a mounting cylinder (50), which is partially located inside the main body (1), and the camera device (3) and the lighting lamp (30) are disposed inside the mounting cylinder (50).

6. A visual pigging device according to any one of claims 1-5, characterized in that, The main body (1) includes a first steel cylinder (101) and a second steel cylinder (102) that are movably connected to each other. The sealing disc (4) is installed at the end of the first steel cylinder (101) away from the second steel cylinder (102), and the first support disc (5) is installed at the end of the second steel cylinder (102) away from the first steel cylinder (101).

7. A visualizing pipe pig according to claim 6, characterized in that, A third support plate (7) is installed at one end of the first steel cylinder (101) near the second steel cylinder (102), and the third support plate (7) is also installed at one end of the second steel cylinder (102) near the first steel cylinder (101). The third support plate (7) is provided with the hollow part (10).

8. The visualizing pipe pig according to claim 7, characterized in that, It also includes a cable chain (9), through which the first steel cylinder (101) and the second steel cylinder (102) are connected.

9. The visualizing pipe pig of claim 7, wherein, The mileage measuring wheel (2) is mounted on the first steel cylinder (101). or; The mileage measuring wheel (2) is mounted on the second steel cylinder (102).

10. A visualizing pig according to any one of claims 1-5, characterized in that The main body (1) includes a third steel cylinder (103), the sealing disc (4) is installed at one end of the third steel cylinder (103), and the first support disc (5) is installed at the other end of the third steel cylinder (103). The mileage measuring wheel (2) is connected to the third steel cylinder (103), and the camera device (3) is installed at the end of the third steel cylinder (103) away from the sealing disc (4).

Images