An unmanned aerial vehicle-based gas transmission pipeline inspection device and method

Abstract

This application relates to the field of unmanned aerial vehicle (UAV) application technology, specifically disclosing a UAV-based gas pipeline inspection device and method. It includes a UAV body and a storage box mounted on the UAV body. The bottom of the storage box is openable and closable. The storage box contains an airbag assembly for attaching to a pipeline leak. An air pump assembly for inflating the airbag assembly is vertically mounted inside the storage box. A separation component is also provided inside the storage box for separating the air pump assembly and the airbag assembly. This application improves upon the lack of emergency response capabilities for pipeline leaks in UAVs used for pipeline inspection.

Description

Technical Field

[0001] This application relates to the field of unmanned aerial vehicle (UAV) application technology, and in particular to a UAV-based gas pipeline inspection device and inspection method. Background Technology

[0002] With the rapid development of the industry in recent years, drones, as one of the strategic emerging industries, have a wide range of applications. Among them, drones have been widely used in the oil and gas industry and play an important role in pipeline inspection.

[0003] Now, drones can complete large-scale routine inspections. Equipped with visible light and infrared dual-light pods, they have day and night monitoring capabilities, enabling all-weather, all-time monitoring. They can also hover over designated targets for detailed inspections and locate and alarm upon detecting any issues. For gas field pipeline networks, which have many challenges such as long pipelines, numerous inspection points, and high inspection difficulty, the advantages of drone inspections are very obvious.

[0004] However, when a gas pipeline leaks and is detected by a drone, the drone can only locate and alarm, but does not have the ability to handle emergency situations at the leak point, so this needs to be improved. Summary of the Invention

[0005] To address the lack of emergency response capabilities for pipeline leaks when using drones in pipeline inspection, this application provides a drone-based gas pipeline inspection device and method.

[0006] The technical solution of the gas pipeline inspection device based on UAV provided in this application is as follows:

[0007] A gas pipeline inspection device based on a drone includes a drone body and a storage box set on the drone body. The bottom of the storage box can be opened and closed. The storage box contains an airbag assembly for fastening to the pipeline leak. An air pump assembly for inflating the airbag assembly is installed in the storage box and can be raised and lowered.

[0008] The storage box is also equipped with a separation component for separating the air pump assembly and the airbag assembly.

[0009] By adopting the above technical solution, when the UAV detects a leak in the gas pipeline, the UAV moves and hovers above the leak point. Then, the storage box opens, the air pump inflates the airbag assembly, and seals the airbag assembly to the leak point. Finally, the separation component separates the air pump and airbag assembly, allowing the UAV to continue its inspection. The cooperation of the air pump, airbag assembly, and separation component increases the UAV's ability to handle emergency situations at gas pipeline leak points.

[0010] Optionally, the airbag assembly includes a semi-annular first airbag and a semi-annular second airbag disposed on the inner wall of the first airbag, wherein the end of the first airbag communicates with the end of the second airbag near the first airbag, and a temporary sealing component is provided at the communication point between the second airbag and the first airbag.

[0011] A quick connector for connecting the first airbag and the air pump assembly is provided.

[0012] By adopting the above technical solution, when the air pump unit inflates the airbag assembly, the first airbag is inflated first to pre-form the airbag assembly. At this time, the second airbag is still in an uninflated state under the action of the temporary sealing component. The purpose of this is to reduce the friction between the airbag assembly and the outer wall of the pipe, so that the airbag assembly can be quickly fastened to the pipe. After the fastening is completed, the second airbag is inflated to seal the leak point of the pipe.

[0013] Throughout the process, the first airbag serves to pre-position and facilitate rapid installation, while the second airbag serves to seal off the obstruction.

[0014] Optionally, an adhesive layer is provided on the side wall of the second airbag away from the first airbag, and an anti-adhesive layer is attached to the adhesive layer;

[0015] When the second airbag is inflated, the adhesive layer stretches and the anti-adhesive layer breaks off from the adhesive layer and the adhesive layer adheres and seals onto the pipe.

[0016] By adopting the above technical solution, after the temporary sealing component is released from the seal, the air pump unit begins to inflate the second airbag. When the second airbag is inflated, the adhesive layer is stretched under the action of the second airbag. At this time, the anti-adhesive layer attached to the adhesive layer will partially break, exposing the adhesive layer outside the second airbag and adhering it to the outer wall of the pipeline, thereby improving the sealing performance between the second airbag and the gas pipeline and thus improving the sealing effect of the second airbag.

[0017] Optionally, the non-stick layer is paper.

[0018] By adopting the above technical solution, paper is chosen as the anti-adhesive layer because paper has low tensile strength and will not deform along with the adhesive layer, so that the adhesive layer on the second airbag after inflation is exposed outside the second airbag; at the same time, when the second airbag is stored in the storage box, the anti-adhesive layer can prevent the adhesive layer from sticking to the second airbag or other items.

[0019] Optionally, the paper may have some broken lines.

[0020] By adopting the above technical solution, the setting of dotted break lines can accelerate the breaking of paper, and the breaking direction of paper can be determined according to the number and direction of the dotted break lines.

[0021] Optionally, the temporary sealing assembly includes an air guide column disposed at the connection between the first airbag and the second airbag. An arc-shaped sealing plate is disposed on the inner sidewall of the air guide column. The inner arc surface of the sealing plate faces the first airbag. The sealing plate has a through hole at the beginning, and an air guide plate is disposed around the through hole.

[0022] The sealing plate has a plurality of first notches spaced apart along its radial direction, starting from the center of the sealing plate. The air guide plate has a plurality of second notches spaced apart along its radial direction, starting from the center of the air guide plate, corresponding to the first notches. Each set of corresponding first notches and second notches are connected.

[0023] By adopting the above technical solution, when the air pump unit inflates the first airbag, the second airbag can only be ventilated in small amounts along the gap between the first and second openings due to the blocking effect of the air guide plate. When the first airbag is inflated to the inflated state, the air guide plate rotates inward at a certain angle under the air pressure of the first airbag, thereby increasing the inflation volume of the first and second openings, so as to achieve automatic inflation of the second airbag. The structure is ingenious and highly practical.

[0024] Optionally, the air pump assembly includes an air pump body and an air pipe, the air pipe is provided with a valve, and the air pump body is provided with a drive component for driving the valve to open or close.

[0025] By adopting the above technical solution, the valve plays a central control role in the entire device. The valve is driven to open or close by the drive component to control whether the vent pipe is ventilated. The valve design improves the safety of the entire device.

[0026] Optionally, the drive assembly includes a rotating shaft rotatably mounted on the air pump body, a bent rod fixedly disposed on the rotating shaft, and the bent rod movably abutting against the valve;

[0027] The drive assembly also includes a drive element for driving the shaft to rotate.

[0028] By adopting the above technical solution, when the valve is closed, the driving component drives the rotating shaft to rotate, the rotating shaft drives the bending rod to rotate, and the bending rod pushes the valve to rotate and close. The structure is simple and the operation is convenient.

[0029] Optionally, the separation assembly includes a miniature cylinder disposed on the valve, a pressure plate disposed on the output end of the miniature cylinder, the pressure plate being movably abutting against the quick connector, and an infrared sensor disposed on the valve;

[0030] When the valve is turned to vertically closed, the infrared sensor is aligned with the quick connector, and the miniature cylinder is activated.

[0031] By adopting the above technical solution, when the valve is rotated to the vertical position, the valve is closed. At this time, the infrared sensor on the valve is aligned with the quick connector, and the micro cylinder is activated. Then, the pressure plate is pressed against the movable contact under the action of the micro cylinder. Then, the air pump group or the drone body rises, which can separate the airbag group and the air pump group. The cooperation of the infrared sensor and the micro cylinder connects the valve closing process and the separation process of the airbag group and the air pump group, making the whole process quick and smooth.

[0032] Optionally, a method for inspecting gas pipelines based on unmanned aerial vehicles (UAVs) includes the following steps:

[0033] The drone itself detects whether the gas supply pipeline is leaking.

[0034] If the drone body detects an air leak in the pipe, the bottom of the storage box opens, the air pump unit descends, and the airbag unit is pre-inflated;

[0035] The drone body moves and the airbag assembly is fastened to the pipe leak. The air pump assembly continues to inflate the airbag assembly until the second airbag is sealed and fitted to the pipe leak.

[0036] When the second airbag is inflated, the adhesive layer stretches, the paper tears, and the adhesive layer adheres to the pipe;

[0037] After inflation is complete, close the valve and disconnect the vent pipe from the quick connector.

[0038] The air pump unit is reset, and the storage box is closed.

[0039] In summary, this application includes at least one of the following beneficial technical effects:

[0040] 1. When the drone detects a leak in the gas pipeline, it moves and hovers above the leak point. Then, the bottom of the storage box opens, the air pump unit inflates the airbag unit, and seals the airbag unit to the leak point. Finally, the separation component separates the air pump unit and the airbag unit, allowing the drone to continue its inspection. The cooperation of the air pump unit, the airbag unit, and the separation component increases the drone's ability to handle gas pipeline leaks.

[0041] 2. When the air pump unit inflates the airbag assembly, the first airbag is inflated first to pre-form the airbag assembly. At this time, the second airbag is still in an uninflated state under the action of the temporary sealing component. The purpose of this is to reduce the friction between the airbag assembly and the outer wall of the pipe, so that the airbag assembly can be quickly fastened to the pipe. After the fastening is completed, the second airbag is inflated to seal the leak point in the pipe.

[0042] Throughout the process, the first airbag serves to preposition and facilitate rapid installation, while the second airbag serves to seal the airbag.

[0043] 3. After the temporary sealing component is released, the air pump unit begins to inflate the second airbag. When the second airbag inflates, the adhesive layer stretches under the action of the second airbag. At this time, the anti-adhesive layer attached to the adhesive layer will partially break, exposing the adhesive layer outside the second airbag and adhering it to the outer wall of the pipeline. This improves the sealing between the second airbag and the gas pipeline, thereby improving the sealing effect of the second airbag. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0045] Figure 2 This is a schematic diagram of the explosion structure of the first and second airbags in Embodiment 1 of this application;

[0046] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle;

[0047] Figure 4 This is a cross-sectional view of the adhesive layer and the anti-adhesive layer in Embodiment 1 of this application;

[0048] Figure 5 This is a schematic diagram of the overall structure of the anti-adhesive layer in Embodiment 1 of this application;

[0049] Figure 6 This is a schematic diagram of the overall structure of Embodiment 1 of this application, excluding the drone body and the storage box;

[0050] Figure 7 This is a schematic diagram of the overall structure of the airbag assembly and air pump assembly in Embodiment 1 of this application;

[0051] Figure 8 yes Figure 7 A magnified structural diagram of part B.

[0052] Reference numerals: 1. UAV body; 2. Storage box; 3. Airbag assembly; 31. First airbag; 32. Second airbag; 33. Quick connector; 4. Air pump assembly; 41. Air pump body; 42. Air vent; 43. Valve; 44. Drive assembly; 441. Shaft; 442. Bending rod; 443. Drive component; 5. Separation assembly; 51. Miniature cylinder; 52. Pressure plate; 53. Infrared sensor; 6. Temporary sealing assembly; 61. Air guide column; 62. Sealing plate; 63. Air guide plate; 64. First notch; 65. Second notch; 7. Adhesive layer; 8. Anti-stick layer; 81. Paper; 9. Dotted line; 10. Electric push rod. Implementation

[0053] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail. Example 1

[0054] Embodiment 1 of this application discloses a gas pipeline inspection device based on unmanned aerial vehicles (UAVs).

[0055] Reference Figure 1 A UAV-based gas pipeline inspection device includes a UAV body 1 and a storage box 2 mounted on the UAV body 1, wherein the bottom of the storage box 2 can be automatically opened and closed. The storage box 2 contains an airbag assembly 3 for fastening to the pipeline leak. An air pump assembly 4 for inflating the airbag assembly 3 is mounted on the inner top wall of the storage box 2 and can be raised and lowered. The storage box 2 also contains a separation component 5 for separating the airbag assembly 3 and the air pump assembly 4.

[0056] When the drone body 1 detects a leak in the gas pipeline, the drone body 1 moves and hovers above the leak point. Then, the bottom of the storage box 2 opens, the air pump group 4 inflates the airbag group 3, and seals the airbag group 3 to the leak point. Finally, the separation component 5 separates the air pump group 4 and the airbag group 3, allowing the drone body 1 to continue its inspection. The cooperation of the air pump group 4, the airbag group 3, and the separation component 5 increases the drone body 1's ability to handle emergency situations at gas pipeline leak points.

[0057] The following sections will describe the airbag assembly 3, the air pump assembly 4, and the separation assembly 5 in detail:

[0058] Reference Figure 2The airbag assembly 3 includes a first airbag 31 and a second airbag 32. In this embodiment, both the first airbag 31 and the second airbag 32 are semi-annular airbags. The second airbag 32 is fixed to the inner wall of the first airbag 31. The end of the first airbag 31 communicates with the end of the second airbag 32 near the first airbag 31, and a temporary sealing component 6 is provided at the communication point between the second airbag 32 and the first airbag 31. In this embodiment, only one set of temporary sealing components 6 is provided, meaning there is only one communication port between the first airbag 31 and the second airbag 32. In other feasible embodiments, multiple communication ports can be provided, and multiple sets of temporary sealing components 6 can be provided accordingly.

[0059] The airbag assembly 3 is divided into a first airbag 31 and a second airbag 32 so that when the air pump assembly 4 inflates the airbag assembly 3, the first airbag 31 is inflated first to pre-form the airbag assembly 3. At this time, the second airbag 32 is still in an uninflated state under the action of the temporary sealing component 6. The purpose of this is to reduce the friction between the airbag assembly 3 and the outer wall of the pipe, so that the airbag assembly 3 can be quickly fastened to the pipe. After the fastening is completed, the second airbag 32 is inflated to seal the pipe leakage point. In the whole process, the first airbag 31 plays the role of pre-positioning and quick installation, and the second airbag 32 plays the role of sealing.

[0060] Reference Figure 3 The temporary sealing assembly 6 includes an air guide column 61 fixed at the connection between the first airbag 31 and the second airbag 32. An arc-shaped sealing plate 62 is provided on the inner wall of the air guide column 61. The sealing plate 62 is coaxial with the air guide column 61, and its outer ring is fixed to the air guide column 61. The inner arc surface of the sealing plate 62 faces the first airbag 31. A through hole is provided at the center of the sealing plate 62, and an air guide plate 63 is provided around the through hole. This air guide plate 63 is also coaxial with the air guide column 61. The sealing plate 62 has several first notches 64 spaced apart along its radial direction, starting from its center. In this embodiment, the number of first notches 64 is three, and the three first notches 64 are arranged in a ring at equal intervals on the sealing plate 62. The air guide plate 63 has three second notches 65 that correspond to the first notch 64, starting from the center of the air guide plate 63 and spaced apart along its radial direction. Each set of corresponding first notches 64 and second notches 65 are connected.

[0061] When the air pump unit 4 inflates the first airbag 31, the second airbag 32 is only allowed to breathe slightly through the gap between the first notch 64 and the second notch 65 due to the blocking effect of the air guide plate 63. When the first airbag 31 is inflated to the inflated state, the air guide plate 63 rotates inward at a certain angle under the air pressure of the first airbag 31, which increases the inflation volume of the first notch 64 and the second notch 65, so as to achieve automatic inflation of the second airbag 32. The structure is ingenious and highly practical.

[0062] In addition, refer to Figure 4 To improve the sealing performance of the second airbag 32 at the pipe leakage point, an adhesive layer 7 is provided on the side wall of the second airbag 32 away from the first airbag 31, and an anti-adhesive layer 8 is attached to the adhesive layer 7. When the second airbag 32 is inflated, the adhesive layer 7 stretches, the anti-adhesive layer 8 breaks off from the adhesive layer 7, and the adhesive layer 7 adheres and seals the pipe. In this embodiment, the adhesive layer 7 is a removable foam adhesive with a certain degree of extensibility, which can be stretched and deformed within a certain range. In this embodiment, the anti-adhesive layer 8 is paper 81. The paper 81 has low tensile strength. Tensile strength refers to the ability of a material or specimen to resist fracture when subjected to static tension, or the tensile stress that a material can withstand without fracture.

[0063] After the temporary sealing component 6 is released from the seal, the air pump unit 4 begins to inflate the second airbag 32. When the second airbag 32 is inflated, the adhesive layer 7 is stretched under the action of the second airbag 32. At this time, the anti-adhesive layer 8 attached to the adhesive layer 7 will partially break, exposing the adhesive layer 7 outside the second airbag 32 and adhering it to the outer wall of the pipeline, thereby improving the sealing performance between the second airbag 32 and the gas pipeline, and thus improving the sealing effect of the second airbag 32.

[0064] Furthermore, refer to Figure 5 The paper 81 has a plurality of dotted break lines 9. The direction of the dotted break lines 9 is not limited. In this embodiment, the dotted break lines 9 are arranged at intervals along the width direction of the paper 81. The arrangement of the dotted break lines 9 can accelerate the breaking of the paper 81, and the breaking direction of the paper 81 can be determined according to the number and direction of the dotted break lines 9.

[0065] Reference Figure 6 In this embodiment, the air pump assembly 4 is raised and lowered by an electric push rod 10. The air pump assembly 4 includes an air pump body 41 and an air pipe 42. A valve 43 is provided on the air pipe 42, and a drive assembly 44 is provided on the air pump body 41 to drive the valve 43 to open or close. A quick connector 33 is provided between the first airbag 31 and the air pump assembly 4 to connect the two. This quick connector 33 is a hydraulic quick connector, and a separation assembly 5 is used to separate the quick connector 33 from the air pipe 42.

[0066] Reference Figure 7Specifically, the drive assembly 44 includes a rotating shaft 441 rotatably mounted on the air pump body 41. A bent rod 442 is fixedly connected to the end of the rotating shaft 441. The bent rod 442 is an L-shaped rod and movably abuts against the valve 43 (here, valve 43 refers to the rotating rod on the valve 43). When the valve 43 is in a horizontal state, it is in an open state; when the valve 43 is in a vertical state, it is in a closed state. The drive assembly 44 also includes a drive component 443 for driving the rotating shaft 441 to rotate. In this embodiment, the drive component 443 is a drive motor. When the valve 43 is closed, the drive motor drives the rotating shaft 441 to rotate. When the rotating shaft 441 rotates, it drives the bent rod 442 to rotate. When the bent rod 442 rotates, it pushes the valve 43 to rotate and close. The structure is simple and the operation is convenient.

[0067] Reference Figure 8 The separation component 5 includes a miniature cylinder 51 mounted on the valve 43. A pressure plate 52 is mounted on the output end of the miniature cylinder 51. In this embodiment, the pressure plate 52 is a semi-annular pressure plate to increase the contact area between the pressure plate 52 and the quick connector 33, thereby achieving rapid separation. The pressure plate 52 and the quick connector 33 are in movable contact. An infrared sensor 53 is also mounted on the valve 43. When the valve 43 is rotated to a vertical position, the valve 43 closes. At this time, the infrared sensor 53 on the valve 43 is opposite to the quick connector 33, and the miniature cylinder 51 is activated. Immediately afterward, the pressure plate 52 is pressed against the quick connector 33 under the action of the miniature cylinder 51. Then, the air pump assembly 4 rises or the drone body 1 rises, causing the airbag assembly 3 and the air pump assembly 4 to separate. The cooperation between the infrared sensor 53 and the miniature cylinder 51 connects the closing process of the valve 43 and the separation process of the airbag assembly 3 and the air pump assembly 4, making the entire process quick and smooth.

[0068] The implementation principle of the gas pipeline inspection device based on a drone in Embodiment 1 of this application is as follows: When the drone body 1 detects a leak in the gas pipeline, the drone body 1 moves and hovers above the leak point. Immediately afterwards, the storage box 2 opens, and the air pump group 4 inflates the airbag group 3. When inflating the airbag group 3, the air pump group 4 first inflates the first airbag 31. After the airbag group 3 is attached to the pipeline, the second airbag 32 is inflated to seal the pipeline leak point. When the second airbag 32 inflates, the adhesive layer 7 is applied to the second airbag 3. Under the action of 2, the anti-adhesive layer 8 attached to the adhesive layer 7 will partially break, exposing the adhesive layer 7 to the outside of the second airbag 32 and adhering it to the outer wall of the pipe, improving the sealing between the second airbag 32 and the air supply pipe, and sealing the second airbag 32 to the leak point of the pipe. Finally, under the action of the separation component 5, the air pump group 4 and the airbag group 3 are separated, allowing the UAV body 1 to continue to patrol. The cooperation of the air pump group 4, the airbag group 3 and the separation component 5 increases the UAV body 1's ability to handle emergency situations at the leak point of the air supply pipe. Example 2

[0069] Embodiment 2 of this application discloses a method for inspecting gas pipelines based on unmanned aerial vehicles (UAVs), comprising the following steps:

[0070] The drone body 1 checks for leaks in the gas supply pipeline;

[0071] If the drone body 1 detects a leak in the pipe, the bottom of the storage box 2 opens, the air pump group 4 descends and pre-inflates the airbag group 3;

[0072] The drone body 1 moves and the airbag assembly 3 is fastened to the pipe leak. The air pump assembly 4 continues to inflate the airbag assembly 3 until the second airbag 32 is sealed and attached to the pipe leak.

[0073] When the second airbag 32 is inflated, the adhesive layer 7 stretches, the paper 81 breaks, and the adhesive layer 7 adheres to the pipe.

[0074] After inflation is complete, close valve 43 and disconnect vent pipe 42 from quick connector 33;

[0075] Air pump unit 4 is reset, and storage box 2 is closed.

[0076] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A UAV-based gas transmission pipeline inspection device, comprising a UAV body (1), characterized in that: It also includes a storage box (2) set on the drone body (1), the bottom of the storage box (2) can be opened and closed, the storage box (2) contains an airbag assembly (3) for fastening to the leak in the pipe, and an air pump assembly (4) for inflating the airbag assembly (3) is set up inside the storage box (2) in a height-adjustable manner. The storage box (2) is also equipped with a separation component (5) for separating the air pump group (4) and the airbag group (3); The airbag assembly (3) includes a semi-annular first airbag (31) and a semi-annular second airbag (32) disposed on the inner wall of the first airbag (31). The end of the first airbag (31) communicates with the end of the second airbag (32) near the first airbag (31), and a temporary sealing component (6) is provided at the communication point between the second airbag (32) and the first airbag (31). A quick connector (33) for connecting the first airbag (31) and the air pump assembly (4) is provided. The air pump assembly (4) includes an air pump body (41) and an air pipe (42). A valve (43) is provided on the air pipe (42), and a drive assembly (44) is provided on the air pump body (41) for driving the valve (43) to open or close. The separation component (5) includes a miniature cylinder (51) disposed on the valve (43), a pressure plate (52) disposed on the output end of the miniature cylinder (51), the pressure plate (52) being in movable contact with the quick connector (33), and an infrared sensor (53) disposed on the valve (43). When the valve (43) is turned to vertically closed, the infrared sensor (53) is opposite to the quick connector (33), and the miniature cylinder (51) is activated; An adhesive layer (7) is provided on the side wall of the second airbag (32) away from the first airbag (31), and an anti-adhesive layer (8) is attached to the adhesive layer (7). When the second airbag (32) is inflated, the adhesive layer (7) stretches and the anti-adhesive layer (8) breaks off from the adhesive layer (7) and the adhesive layer (7) adheres and seals onto the pipe.

2. The gas pipeline inspection device based on unmanned aerial vehicles (UAVs) according to claim 1, characterized in that: The non-stick layer (8) is paper (81).

3. The gas pipeline inspection device based on unmanned aerial vehicles (UAVs) according to claim 2, characterized in that: The paper (81) has a few broken lines (9).

4. The gas pipeline inspection device based on unmanned aerial vehicles (UAVs) according to claim 1, characterized in that: The temporary sealing assembly (6) includes an air guide column (61) disposed at the connection between the first airbag (31) and the second airbag (32). An arc-shaped sealing plate (62) is disposed on the inner side wall of the air guide column (61). The inner arc surface of the sealing plate (62) faces the first airbag (31). A through hole is opened on the sealing plate (62), and an air guide plate (63) is disposed around the through hole of the sealing plate (62). The sealing plate (62) has a plurality of first notches (64) spaced apart along its radial direction, starting from the center of the sealing plate (62). The air guide plate (63) has a plurality of second notches (65) spaced apart along its radial direction, starting from the center of the air guide plate (63), corresponding to the first notches (64). Each set of corresponding first notches (64) and second notches (65) are connected.

5. The gas pipeline inspection device based on unmanned aerial vehicles (UAVs) according to claim 1, characterized in that: The drive assembly (44) includes a rotating shaft (441) rotatably mounted on the air pump body (41), and a bent rod (442) is fixedly provided on the rotating shaft (441). The bent rod (442) is in movable contact with the valve (43). The drive assembly (44) also includes a drive element (443) for driving the shaft (441) to rotate.

6. A method for inspecting gas pipelines based on unmanned aerial vehicles (UAVs), based on a gas pipeline inspection device based on UAVs as described in any one of claims 1-5, characterized in that: Includes the following steps: The UAV body (1) detects whether the gas pipeline is leaking; If the UAV body (1) detects a leak in the pipe, the bottom of the storage box (2) opens, the air pump group (4) descends and pre-inflates the airbag group (3); The drone body (1) moves and the airbag assembly (3) is fastened to the pipe leak. The air pump assembly (4) continues to inflate the airbag assembly (3) until the second airbag (32) is sealed and fitted to the pipe leak. When the second airbag (32) is inflated, the adhesive layer (7) stretches, the paper (81) breaks and the adhesive layer (7) adheres to the pipe; After inflation is complete, close the valve (43) and separate the vent pipe (42) from the quick connector (33); The air pump unit (4) is reset, and the storage box (2) is closed.

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