Oil and gas pipeline inspection unmanned aerial vehicle with protection function

By designing arc-shaped protective plates and rubber roller structures on oil and gas pipeline inspection drones, combined with sensor and solenoid valve systems, the risk of damage to drones due to collisions in complex environments has been solved, enabling efficient gas leak monitoring and location marking, and improving the safety and efficiency of inspections.

CN224131320UActive Publication Date: 2026-04-17XIAN CHANGQING TONGXIN PETROLEUM TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAN CHANGQING TONGXIN PETROLEUM TECH CO LTD
Filing Date
2025-06-09
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Drones are at high risk of damage from collisions in complex environments, especially in narrow, dark, or densely packed pipe areas where they are prone to colliding with pipes and causing equipment damage.

Method used

A protective drone for inspecting oil and gas pipelines was designed. It uses an arc-shaped protective plate and rubber roller structure to absorb collision energy. Combined with a methane sensor, a hydrogen sulfide sensor and a GPS positioning module, it can monitor gas leaks in real time. It also controls the release of marked liquid through a solenoid valve to achieve efficient data acquisition and on-site marking.

Benefits of technology

It effectively reduces the risk of damage to drones in complex environments, improves the safety and efficiency of inspections, adapts to narrow, dimly lit or dense pipeline scenarios, expands the scope of application, and achieves high-precision location marking and fault diagnosis.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The oil and gas pipeline inspection unmanned aerial vehicle with the protection function comprises an unmanned aerial vehicle body, and a marking box and a detection device are arranged at the bottom of the unmanned aerial vehicle body; the unmanned aerial vehicle body comprises an unmanned aerial vehicle main body, the unmanned aerial vehicle main body is connected with one ends of the multiple protective vehicle arms, and the other ends of the multiple protective vehicle arms are connected with rotor wings. According to the oil and gas pipeline inspection unmanned aerial vehicle with the protection function, through collaborative design of the arc-shaped protection plates and the rubber rollers, collision energy is effectively absorbed, the wing damage risk is reduced, and the durability of the unmanned aerial vehicle in a complex environment is improved; the adjustable detection device angle and multi-group protection design adapt to narrow, dark or dense pipeline scenes, and the application range is expanded. Through the organic combination of structure protection, intelligent sensing and automation functions, the problems of low efficiency and poor safety of a traditional inspection mode are solved, and the reliability and economical efficiency of oil and gas pipeline inspection are remarkably improved.
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Description

Technical Field

[0001] This utility model belongs to the field of inspection drone technology, and relates to an oil and gas pipeline inspection drone with protective functions. Background Technology

[0002] Oil and gas pipelines have a long total operating mileage, a large construction span, and are prone to safety incidents and accidents. Furthermore, the total pipeline mileage is growing rapidly, making the situation for strengthening pipeline safety patrol and management increasingly challenging. Relying solely on conventional inspections is clearly insufficient, necessitating more scientific management methods and technologies. The use of drone inspection technology has become a trend in the domestic and international petroleum industry. Pipeline inspection drones are widely used in factory pipeline inspections, oil pipeline inspections, and gas pipeline inspections. However, in relatively complex and confined areas, drone collisions are common, especially in dimly lit, elevated areas within factories or densely packed pipeline areas, where drones are extremely prone to colliding with pipelines, resulting in damage to the drones.

[0003] In summary, existing technologies pose a significant risk of damage to drones due to collisions in complex environments. Utility Model Content

[0004] The purpose of this invention is to provide an oil and gas pipeline inspection drone with protective functions, which solves the problem of high risk of damage to drones due to collisions in complex environments in the existing technology.

[0005] The technical solution adopted by this utility model is an oil and gas pipeline inspection drone with protective function, including a drone body, with a marking box and a detection device respectively set on the bottom of the drone body; the drone body includes a drone main body, which is connected to one end of several protective arms, and the other end of several protective arms is connected to a rotor.

[0006] The features of this utility model also include:

[0007] The protective arm consists of an arm, one end of which is connected to the main body of the drone, and the other end of which is connected to a support base, which is connected to the rotor.

[0008] The support base has a disc-shaped structure with several mounting slots evenly spaced on it. One end of a connecting rod is embedded in the mounting slot, and the other end of the connecting rod is connected to an arc-shaped protective plate. The arc-shaped protective plates are arranged in a circular structure with the rotor located at the center.

[0009] The curved protective plate has several through slots at equal intervals, and several rubber rollers are installed on the side of the curved protective plate away from the rotor. The rubber rollers are connected to the curved protective plate through two sets of fixing blocks.

[0010] Both ends of the rubber roller are rotatably connected to the fixed block, and the fixed block is connected to the arc-shaped protective plate. Several through grooves are spaced apart from several rubber rollers.

[0011] The top of the marking box is connected to the bottom of the drone body, the bottom of the marking box is connected to the temporary storage box, and the temporary storage box is connected to the liquid outlet pipe; a first solenoid valve is installed between the marking box and the temporary storage box, and a second solenoid valve is installed between the temporary storage box and the liquid outlet pipe.

[0012] The drone body is connected to a mounting frame at the bottom. A servo motor is installed inside the mounting frame. The output shaft of the servo motor is connected to the fixed frame. The detection device is installed inside the fixed frame. A rotary motor is installed on one side of the fixed frame. The output shaft of the rotary motor passes through the fixed frame and is connected to the detection device.

[0013] The main body of the drone is equipped with a power supply, a control module, and a positioning module. The power supply and control module are connected to the rotor, solenoid valve number one, solenoid valve number two, and detection device, respectively.

[0014] The detection device includes a methane sensor, a hydrogen sulfide sensor, and a camera.

[0015] The main structure of the drone is a square box shape, with support frames on both sides of the bottom of the drone body, and the support frames are arranged symmetrically between each other.

[0016] The beneficial effects of this utility model are as follows: Through the synergistic design of the arc-shaped protective plate and the rubber roller, collision energy is effectively absorbed, reducing the risk of wing damage and improving the durability of the UAV in complex environments; the integration of a methane / hydrogen sulfide sensor and a GPS positioning module enables real-time gas leak monitoring and high-precision location marking, shortening troubleshooting time; the electromagnetic valve controls the release of marked liquid, combined with a rotary multi-sensor detection device, simultaneously completing data acquisition and on-site marking, improving inspection efficiency; the adjustable detection device angle and multiple protective designs adapt to narrow, dimly lit, or dense pipeline scenarios, expanding the scope of application. This utility model, through the organic combination of structural protection, intelligent sensing, and automated functions, solves the problems of low efficiency and poor safety in traditional inspection methods, significantly improving the reliability and economy of oil and gas pipeline inspection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the oil and gas pipeline inspection drone with protective function of this utility model;

[0018] Figure 2 This is a front view of the protective oil and gas pipeline inspection drone of this utility model;

[0019] Figure 3 for Figure 1 Enlarged view of section AA;

[0020] Figure 4This is a three-dimensional structural diagram of the marking box in this utility model.

[0021] In the diagram, 1. UAV body; 11. Arm; 110. Support base; 111. Mounting slot; 112. Connecting rod; 113. Arc-shaped protective plate; 114. Through slot; 115. Fixing block; 116. Rubber roller; 12. Support frame; 13. Mounting frame; 130. Servo motor; 131. Fixing frame; 132. Rotating motor; 2. Marking box; 201. Solenoid valve No. 1; 202. Temporary storage box; 203. Solenoid valve No. 2; 204. Liquid outlet pipe; 3. Detection device. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] The oil and gas pipeline inspection drone with protective functions includes a drone body 1, with a marking box 2 and a detection device 3 respectively installed on the bottom of the drone body 1; the drone body 1 includes a drone main body, which is connected to one end of several protective arms, and the other end of several protective arms is connected to a rotor.

[0024] The protective arm includes an arm 11, one end of which is connected to the main body of the UAV, and the other end is connected to a support base 110, which is connected to the rotor. The support base 110 has a disc-shaped structure and is provided with several mounting slots 111 at equal intervals. One end of a connecting rod 112 is embedded in each mounting slot 111, and the other end of the connecting rod 112 is connected to an arc-shaped protective plate 113. The arc-shaped protective plates are arranged in a circular structure with the rotor located at the center. Several through slots 114 are provided on the arc-shaped protective plate 113 at equal intervals. Several rubber rollers 116 are provided on the side of the arc-shaped protective plate 113 away from the rotor. The rubber rollers 116 are connected to the arc-shaped protective plate 113 through two sets of fixing blocks 115. Both ends of the rubber rollers 116 are rotatably connected to the fixing blocks 115, and the fixing blocks 115 are connected to the arc-shaped protective plate 113. The through slots 114 and the rubber rollers 116 are spaced apart.

[0025] The top of the marking box 2 is connected to the bottom of the drone body, the bottom of the marking box 2 is connected to the temporary storage box 202, and the temporary storage box 202 is connected to the liquid outlet pipe 204; a first solenoid valve 201 is installed between the marking box 2 and the temporary storage box 202, and a second solenoid valve 203 is installed between the temporary storage box 202 and the liquid outlet pipe 204.

[0026] The bottom of the drone body is connected to a mounting frame 13. A servo motor 130 is installed inside the mounting frame 13. The output shaft of the servo motor 130 is connected to a fixed frame 131. The detection device 3 is installed inside the fixed frame 131. A rotary motor 132 is installed on one side of the fixed frame 131. The output shaft of the rotary motor 132 passes through the fixed frame 131 and is connected to the detection device 3.

[0027] The drone's main body houses a power supply, a control module, and a positioning module. The power supply and control module are connected to the rotor, solenoid valve 201 (number one), solenoid valve 203 (number two), and detection device 3, respectively. Detection device 3 includes a methane sensor, a hydrogen sulfide sensor, and a camera. The drone's main body has a square box-like structure, with support frames 12 symmetrically arranged on both sides of its bottom.

[0028] This utility model protects the drone's wings from damage when they collide with oil and gas pipelines or supporting buildings by installing a connecting rod 112 in the mounting groove 111 and setting an arc-shaped protective plate 113 at one end of the connecting rod 112. The arc-shaped protective plate 113 has several through grooves 114 evenly spaced on its surface and several fixing blocks 115 symmetrically arranged on its surface. A rubber roller 116 is rotatably connected between two sets of fixing blocks 115. The rotatable rubber roller 116 can buffer the collision force generated between the drone and other objects, thereby reducing the damage to the drone caused by vibration, improving the service life of the drone, and thus providing better protection for the drone.

[0029] This invention utilizes a methane sensor, hydrogen sulfide sensor, camera, GPS positioning module, and control module within the detection device 3 to detect gas leaks near gas pipelines. The GPS positioning module locates the leak, and by opening solenoid valve 201, marking liquid from marking box 2 flows into temporary storage box 202. Then, by closing solenoid valve 201 and opening solenoid valve 203, liquid from temporary storage box 202 flows out through outlet pipe 204 for marking, allowing operators to further locate the gas pipeline leak. Therefore, this invention replaces manual inspection, saving time spent manually inspecting gas pipelines and improving work efficiency.

[0030] Example 1

[0031] This embodiment proposes, as follows: Figure 1 and Figure 2 As shown, the oil and gas pipeline inspection drone with protective functions includes a drone body 1, with a marking box 2 and a detection device 3 respectively installed on the bottom of the drone body 1; the drone body 1 includes a drone main body, which is connected to one end of each of the four protective arms, and the other end of each of the four protective arms is connected to a rotor.

[0032] Example 2

[0033] This embodiment proposes, as follows: Figure 1 and Figure 2As shown, the oil and gas pipeline inspection drone with protective functions includes a drone body 1, with a marking box 2 and a detection device 3 respectively installed on the bottom of the drone body 1; the drone body 1 includes a drone main body, which is connected to one end of each of the four protective arms, and rotors are connected to the other ends of the four protective arms. Each protective arm includes an arm 11, one end of which is connected to the drone main body, and the other end of which is connected to a support base 110, which is connected to the rotor. (Combined...) Figure 3 As shown, the support base 110 has a disc-shaped structure. Three mounting slots 111 are equally spaced on the support base 110. One end of the connecting rod 112 is embedded in the mounting slot 111. The other end of the connecting rod 112 is connected to the arc-shaped protective plate 113. The three arc-shaped protective plates are arranged in a circular structure with the rotor located at the center.

[0034] Example 3

[0035] This embodiment proposes, as follows: Figure 1 and Figure 2 As shown, the oil and gas pipeline inspection drone with protective functions includes a drone body 1, with a marking box 2 and a detection device 3 respectively installed on the bottom of the drone body 1; the drone body 1 includes a drone main body, which is connected to one end of each of the four protective arms, and the other end of each of the four protective arms is connected to a rotor.

[0036] The protective arm includes an arm 11, one end of which is connected to the main body of the drone, and the other end of which is connected to a support base 110, which is connected to the rotor. Figure 3 As shown, the support base 110 has a disc-shaped structure. Three mounting slots 111 are evenly spaced on the support base 110. One end of a connecting rod 112 is embedded in each mounting slot 111, and the other end of the connecting rod 112 is connected to an arc-shaped protective plate 113. The three arc-shaped protective plates are arranged in a circular pattern, with the rotor positioned at the center. Five through slots 114 are evenly spaced on the arc-shaped protective plate 113. Six rubber rollers 116 are mounted on the side of the arc-shaped protective plate 113 away from the rotor. The rubber rollers 116 are connected to the arc-shaped protective plate 113 via two sets of fixing blocks 115. Both ends of the rubber rollers 116 are rotatably connected to the fixing blocks 115, and the fixing blocks 115 are connected to the arc-shaped protective plate 113. The five through slots 114 and the six rubber rollers 116 are spaced apart.

[0037] Example 4

[0038] This embodiment proposes, as follows: Figure 1 and Figure 2As shown, the protective oil and gas pipeline inspection drone includes a drone body 1, with a marking box 2 and a detection device 3 respectively installed on the bottom of the drone body 1; the drone body 1 includes a drone main body, which is connected to one end of each of the four protective arms, and rotors are connected to the other ends of the four protective arms. Combined with... Figure 4 As shown, the top of the marking box 2 is connected to the bottom of the drone body, the bottom of the marking box 2 is connected to the temporary storage box 202, and the temporary storage box 202 is connected to the liquid outlet pipe 204; a first solenoid valve 201 is provided between the marking box 2 and the temporary storage box 202, and a second solenoid valve 203 is provided between the temporary storage box 202 and the liquid outlet pipe 204.

[0039] Example 5

[0040] This embodiment proposes, as follows: Figure 1 and Figure 2 As shown, the protective oil and gas pipeline inspection drone includes a drone body 1, with a marking box 2 and a detection device 3 respectively installed on the bottom of the drone body 1; the drone body 1 includes a drone main body, which is connected to one end of each of the four protective arms, and rotors are connected to the other ends of the four protective arms. Combined with... Figure 4 As shown, the top of the marking box 2 is connected to the bottom of the drone body, the bottom of the marking box 2 is connected to the temporary storage box 202, and the temporary storage box 202 is connected to the liquid outlet pipe 204; a first solenoid valve 201 is installed between the marking box 2 and the temporary storage box 202, and a second solenoid valve 203 is installed between the temporary storage box 202 and the liquid outlet pipe 204. A mounting frame 13 is connected to the bottom of the drone body, and a servo motor 130 is installed inside the mounting frame 13. The output shaft of the servo motor 130 is connected to a fixed frame 131. The detection device 3 is installed inside the fixed frame 131, and a rotary motor 132 is installed on one side of the fixed frame 131. The output shaft of the rotary motor 132 passes through the fixed frame 131 and is connected to the detection device 3.

[0041] Example 6

[0042] This embodiment proposes, as follows: Figure 1 and Figure 2 As shown, the protective oil and gas pipeline inspection drone includes a drone body 1, with a marking box 2 and a detection device 3 respectively installed on the bottom of the drone body 1; the drone body 1 includes a drone main body, which is connected to one end of each of the four protective arms, and rotors are connected to the other ends of the four protective arms. Combined with... Figure 4As shown, a mounting bracket 13 is connected to the bottom of the drone body. A servo motor 130 is housed within the mounting bracket 13, and the output shaft of the servo motor 130 is connected to a fixed frame 131. A detection device 3 is located within the fixed frame 131. A rotary motor 132 is located on one side of the fixed frame 131, and the output shaft of the rotary motor 132 passes through the fixed frame 131 and connects to the detection device 3. The drone body contains a power supply, a control module, and a positioning module. The power supply and control module are connected to the rotor, solenoid valve 201 (number one), solenoid valve 203 (number two), and the detection device 3, respectively. The detection device 3 includes a methane sensor, a hydrogen sulfide sensor, and a camera.

[0043] Example 7

[0044] This embodiment proposes, as follows: Figure 1 and Figure 2 As shown, the oil and gas pipeline inspection drone with protective functions includes a drone body 1, with a marking box 2 and a detection device 3 respectively installed on the bottom of the drone body 1; the drone body 1 includes a drone main body, which is connected to one end of each of the four protective arms, and rotors are connected to the other ends of the four protective arms. Each protective arm includes an arm 11, one end of which is connected to the drone main body, and the other end of which is connected to a support base 110, which is connected to the rotor. (Combined...) Figure 3 As shown, the support base 110 has a disc-shaped structure, with three equally spaced mounting slots 111 on it. One end of a connecting rod 112 is embedded in each mounting slot 111, and the other end of the connecting rod 112 is connected to an arc-shaped protective plate 113. The three arc-shaped protective plates are arranged in a circular pattern, with the rotor located at the center. The main body of the drone is a square box shape, with support frames 12 symmetrically arranged on both sides of the bottom of the drone body.

[0045] Example 8

[0046] This embodiment proposes, as follows: Figure 1 and Figure 2 As shown, the oil and gas pipeline inspection drone with protective functions includes a drone body 1, with a marking box 2 and a detection device 3 respectively installed on the bottom of the drone body 1; the drone body 1 includes a drone main body, which is connected to one end of each of the four protective arms, and rotors are connected to the other ends of the four protective arms. Each protective arm includes an arm 11, one end of which is connected to the drone main body, and the other end of which is connected to a support base 110, which is connected to the rotor. (Combined...) Figure 3 As shown, the support base 110 has a disc-shaped structure. Three mounting slots 111 are equally spaced on the support base 110. One end of the connecting rod 112 is embedded in the mounting slot 111. The other end of the connecting rod 112 is connected to the arc-shaped protective plate 113. The three arc-shaped protective plates are arranged in a circular structure with the rotor located at the center.

[0047] Combination Figure 4 As shown, the top of the marking box 2 is connected to the bottom of the drone body, the bottom of the marking box 2 is connected to the temporary storage box 202, and the temporary storage box 202 is connected to the liquid outlet pipe 204. A first solenoid valve 201 is installed between the marking box 2 and the temporary storage box 202, and a second solenoid valve 203 is installed between the temporary storage box 202 and the liquid outlet pipe 204. A mounting frame 13 is connected to the bottom of the drone body. A servo motor 130 is installed inside the mounting frame 13. The output shaft of the servo motor 130 is connected to a fixed frame 131. A detection device 3 is installed inside the fixed frame 131. A rotary motor 132 is installed on one side of the fixed frame 131. The output shaft of the rotary motor 132 passes through the fixed frame 131 and is connected to the detection device 3. A power supply, a control module, and a positioning module are installed inside the drone body. The power supply and control module are connected to the rotor, the first solenoid valve 201, the second solenoid valve 203, and the detection device 3, respectively. The detection device 3 includes a methane sensor, a hydrogen sulfide sensor, and a camera.

Claims

1. An oil and gas pipeline inspection unmanned aerial vehicle with a protection function, characterized in that, The device includes a drone body (1), and a marking box (2) and a detection device (3) are respectively provided on the bottom of the drone body (1); the drone body (1) includes a drone body, which is connected to one end of a plurality of protective arms, and the other end of the plurality of protective arms is connected to a rotor.

2. The oil and gas pipeline inspection drone with protection function according to claim 1, characterized in that, The protective arm includes an arm (11), one end of which is connected to the main body of the UAV, and the other end of which is connected to a support base (110), which is connected to the rotor. 3.The oil and gas pipeline inspection drone with protection function of claim 2, characterized in that, The support base (110) has a disc-shaped structure. Several mounting slots (111) are evenly spaced on the support base (110). One end of a connecting rod (112) is embedded in the mounting slot (111). The other end of the connecting rod (112) is connected to the arc-shaped protective plate (113). The arc-shaped protective plates are arranged in a circular structure with the rotor located at the center.

4. The oil and gas pipeline inspection drone with protection function according to claim 3, characterized in that, The arc-shaped protective plate (113) has several through slots (114) at equal intervals. Several rubber rollers (116) are provided on the side of the arc-shaped protective plate (113) away from the rotor. The rubber rollers (116) are connected to the arc-shaped protective plate (113) through two sets of fixing blocks (115).

5. The oil and gas pipeline inspection drone with protection function according to claim 4, characterized in that, The two ends of the rubber roller (116) are rotatably connected to the fixed block (115), the fixed block (115) is connected to the arc-shaped protective plate (113), and a number of through grooves (114) are spaced apart from a number of rubber rollers (116).

6. The oil and gas pipeline inspection drone with protection function according to claim 1, characterized in that, The top of the marking box (2) is connected to the bottom of the drone body, the bottom of the marking box (2) is connected to the temporary storage box (202), and the temporary storage box (202) is connected to the liquid outlet pipe (204); A first solenoid valve (201) is provided between the label box (2) and the temporary storage box (202), and a second solenoid valve (203) is provided between the temporary storage box (202) and the liquid outlet pipe (204).

7. The oil and gas pipeline inspection drone with protection function according to claim 1, characterized in that, The bottom of the main body of the UAV is connected to a mounting frame (13), and a servo motor (130) is installed inside the mounting frame (13). The output shaft of the servo motor (130) is connected to a fixed frame (131). The detection device (3) is installed inside the fixed frame (131). A rotating motor (132) is installed on one side of the fixed frame (131). The output shaft of the rotating motor (132) passes through the fixed frame (131) and is connected to the detection device (3).

8. The oil and gas pipeline inspection drone with protection function according to claim 1, characterized in that, The main body of the UAV is equipped with a power supply, a control module and a positioning module. The power supply and control module are respectively connected to the rotor, the first solenoid valve (201), the second solenoid valve (203) and the detection device (3). 9.The oil and gas pipeline inspection drone with protection function of claim 1, wherein, The detection device (3) includes a methane sensor, a hydrogen sulfide sensor, and a camera.

10. The oil and gas pipeline inspection drone with protective function according to claim 1, characterized in that, The main structure of the drone is a square box shape, and support frames (12) are respectively provided on both sides of the bottom of the drone body, and the support frames (12) are symmetrically arranged.