Unmanned aerial vehicle-mounted detection system for laser detection of gas leakage

Abstract

The utility model discloses an unmanned aerial vehicle-mounted detection system for laser detection of gas leakage, which comprises an unmanned aerial vehicle body, the center of the bottom of the unmanned aerial vehicle body is rotatably connected with a circular plate, the bottom surface of the circular plate is radially and movably connected with a guide block, the tail end of the guide block is movably connected with a swing arm, the tail end of the swing arm is provided with a gas sensor, and the gas sensor is connected with the circular plate. The two sides of the unmanned aerial vehicle body are each fixedly provided with a supporting plate, and the bottom face of each supporting plate is provided with two buffering pieces in mirror symmetry. According to the utility model, the laser type gas sensor is movably connected to the bottom of the unmanned aerial vehicle body through the circular plate and the guide block, so that the gas pipeline does not need to be detected manually, the gas sensor can detect the gas pipelines in different terrains and landforms, and the problem that the gas pipeline is not detected manually when the gas pipeline is detected manually is avoided. The efficiency is low; and dangers are easy to occur.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to an unmanned aerial vehicle onboard detection system for detecting gas leakage by laser. Background Art

[0002] At present, in order to ensure the safe transportation of gas, gas pipelines and equipment in cities need to be inspected once every five days during use. However, the existing inspection methods are mostly manual inspection methods, which require a lot of manpower and material resources to barely complete the inspection tasks, and the inspection results are not very ideal. Secondly, for gas pipelines laid in mountains, if manual inspection methods are still used, not only will the work efficiency be low, but there may also be hidden dangers that affect personal safety during the inspection of linemen in the mountains. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes an unmanned aerial vehicle detection system for detecting gas leakage by laser.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a laser detection system for unmanned aerial vehicle (UAV) gas leakage, comprising an unmanned aerial vehicle (UAV) body, the bottom center of the UAV body being rotatably connected to a circular plate, the bottom surface of the circular plate being radially movably connected to a guide block, the end of the guide block being movably connected to a swing arm, the end of the swing arm being provided with a gas sensor, a support plate being fixed on each side of the UAV body, and the bottom surface of each support plate being provided with two mirror-symmetrical buffers.

[0005] As a further description of the above technical solution: the buffer component includes a support rod vertically fixed to the bottom surface of the support plate, a buffer groove is vertically opened on the bottom surface of the support rod, a spring is vertically fixed in the buffer groove, the end of the spring is fixedly connected to the buffer rod, the buffer rod is movably connected in the buffer groove, and the end of the buffer rod is fixedly connected to the buffer plate.

[0006] As a further description of the above technical solution: two second sliding grooves with mirror symmetry are vertically opened on the inner wall of the buffer groove, a second sliding block is slidably connected in each of the second sliding grooves, and the two second sliding blocks are fixedly connected to the buffer rod.

[0007] As a further description of the above technical solution: a second drive motor is vertically fixed at the bottom center of the drone body, the output end of the second drive motor is transmission connected to the first rotating shaft, the first rotating shaft is vertically fixed to the center of the top surface of the circular plate, the side of the guide block horizontally passes through a threaded hole, the threaded hole is threaded with a screw, one end of the screw is rotatably connected to a support seat, the support seat is fixed to the bottom surface of the circular plate, and the other end is transmission connected to a first drive motor, and the first drive motor is horizontally fixed to the bottom surface of the circular plate.

[0008] As a further description of the above technical solution: a groove is provided at the end of the guide block, the swing arm is movably connected in the groove, a through hole is horizontally passed through the side of the swing arm, a second rotating shaft is fixedly sleeved in the through hole, the second rotating shaft is rotatably connected to the inner wall of the groove, a third drive motor is horizontally fixed on one side of the guide block, the output end of the third drive motor is transmission-connected to the end of the second rotating shaft, the end of the swing arm is fixedly connected to an electric push rod, the end of the electric push rod is fixedly connected to a support block, and the gas sensor is fixed on the support block.

[0009] As a further description of the above technical solution: a first sliding groove is radially opened on the bottom surface of the circular plate, a first sliding block is slidably connected in the first sliding groove, the first sliding block is fixed on the top surface of the guide block, and the gas sensor is a laser gas sensor.

[0010] The utility model has the following beneficial effects:

[0011] 1. Compared with the prior art, the laser gas leak detection drone-mounted detection system, by movably connecting a laser gas sensor to the bottom of the drone body through a circular plate and a guide block, eliminates the need for manual inspection of the gas pipeline, so that the gas sensor can detect gas pipelines in different terrains and landforms, thus avoiding the problems of low efficiency and danger when manually inspecting the gas pipeline;

[0012] 2. Compared with the prior art, the laser gas leak detection unmanned aerial vehicle detection system uses a third rotating motor and a second rotating shaft to install a gas sensor at the end of the swing arm, so that the gas sensor can detect gas in horizontally laid gas pipelines and vertically laid gas pipelines, thereby improving the diversity and versatility of the gas sensor in detecting gas pipelines;

[0013] 3. Compared with the prior art, the laser gas leakage detection unmanned aerial vehicle detection system has a buffer component consisting of a buffer rod, a support rod, a buffer plate and a spring arranged on the bottom surface of the support plate to buffer and absorb the impact force generated when the unmanned aerial vehicle body lands, thereby avoiding excessive impact force generated when the unmanned aerial vehicle body descends and causing damage to the unmanned aerial vehicle body and the gas sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a stereoscopic diagram of the overall structure of an unmanned aerial vehicle detection system for detecting gas leaks using laser technology proposed by the utility model;

[0015] Figure 2 This is a front view of the overall structure of an unmanned aerial vehicle detection system for detecting gas leaks using laser technology proposed by the utility model;

[0016] Figure 3 The utility model proposes a laser detection gas leak unmanned aerial vehicle detection system Figure 2 A magnified view of the structure at center A;

[0017] Figure 4 This is a main cross-sectional view of the overall structure of a circular plate of an unmanned aerial vehicle detection system for laser gas leakage detection proposed by the utility model;

[0018] Figure 5 This is a cross-sectional view of the overall structure of a buffer component of an unmanned aerial vehicle onboard detection system for laser detection of gas leakage proposed by the utility model.

[0019] Legend:

[0020] 1. UAV body; 2. Support plate; 3. Support rod; 4. Buffer rod; 5. Buffer plate; 6. Round plate; 7. First drive motor; 8. Guide block; 9. Screw; 10. Support seat; 11. First rotating shaft; 12. Second drive motor; 13. Third drive motor; 14. Electric push rod; 15. Support block; 16. Gas sensor; 17. First slide groove; 18. First slider; 19. Threaded hole; 20. Groove; 21. Swing arm; 22. Buffer groove; 23. Spring; 24. Second slide groove; 25. Second slider. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figures 1 to 5The utility model provides an unmanned aerial vehicle detection system for detecting gas leakage by laser: comprising an unmanned aerial vehicle body 1, the bottom center of the unmanned aerial vehicle body 1 is rotatably connected to a circular plate 6, the bottom center of the unmanned aerial vehicle body 1 is vertically fixed to a second drive motor 12, the output end of the second drive motor 12 is transmission-connected to a first rotating shaft 11, the first rotating shaft 11 is vertically fixed to the top center of the circular plate 6, the bottom surface of the circular plate 6 is radially movably connected to a guide block 8, the bottom surface of the circular plate 6 is radially provided with a first slide groove 17, the first slide groove 17 is slidably connected to a first slider 18, and the first slider 18 is fixed to the guide block 8 The top surface of the guide block 8 is horizontally penetrated by a threaded hole 19 on the side surface, and the internal thread of the threaded hole 19 is connected to a screw rod 9, one end of the screw rod 9 is rotatably connected to a support seat 10, and the support seat 10 is fixed to the bottom surface of the circular plate 6, and the other end is transmission-connected to a first drive motor 7, and the first drive motor 7 is horizontally fixed to the bottom surface of the circular plate 6. The end of the guide block 8 is movably connected to a swing arm 21, and a gas sensor 16 is provided at the end of the swing arm 21. The gas sensor 16 is a laser gas sensor. A support plate 2 is fixed on each side of the unmanned aerial vehicle body 1, and two mirror-symmetrical buffers are provided on the bottom surface of each support plate 2;

[0023] By movably connecting the laser-type gas sensor 16 to the bottom of the drone body 1 through the circular plate 6 and the guide block 8, there is no need to manually detect the gas pipeline, so that the gas sensor 16 can detect the gas pipeline in different terrains and landforms, avoiding the problem of low efficiency and easy danger when manually detecting the gas pipeline;

[0024] Reference Figures 2 to 4 In order to achieve the purpose of gas detection for vertically arranged gas pipelines and horizontally arranged gas pipelines, a groove 20 is provided at the end of the guide block 8, a swing arm 21 is movably connected in the groove 20, a through hole is horizontally passed through the side of the swing arm 21, a second rotating shaft is fixedly sleeved in the through hole, and the second rotating shaft is rotatably connected to the inner wall of the groove 20, a third driving motor 13 is horizontally fixed on one side of the guide block 8, an output end of the third driving motor 13 is transmission-connected to the end of the second rotating shaft, the end of the swing arm 21 is fixedly connected to the electric push rod 14, the end of the electric push rod 14 is fixedly connected to the support block 15, and the gas sensor 16 is fixed on the support block 15;

[0025] By using the third rotating motor and the second rotating shaft, the gas sensor 16 is installed at the end of the swing arm 21, so that the gas sensor 16 can detect gas on horizontally laid gas pipelines and vertically laid gas pipelines, thereby improving the diversity and versatility of the gas sensor 16 in detecting gas pipelines.

[0026] Reference Figure 1 and Figure 5In order to achieve the purpose of buffering the impact force when the drone body 1 lands, the buffer member includes a support rod 3 vertically fixed to the bottom surface of the support plate 2, a buffer groove 22 is vertically provided on the bottom surface of the support rod 3, a spring 23 is vertically fixed in the buffer groove 22, the end of the spring 23 is fixedly connected to the buffer rod 4, the buffer rod 4 is movably connected in the buffer groove 22, and two second sliding grooves 24 with mirror symmetry are vertically provided on the inner wall of the buffer groove 22, each second sliding groove 24 is slidably connected to a second slider 25, the two second sliders 25 are fixedly connected to the buffer rod 4, and the end of the buffer rod 4 is fixedly connected to the buffer plate 5;

[0027] By arranging a buffer component consisting of a buffer rod 4, a support rod 3, a buffer plate 5 and a spring 23 on the bottom surface of the support plate 2, the impact force generated by the drone body 1 when landing is buffered and absorbed, thereby preventing the impact force generated when the drone body 1 descends from being too large and causing damage to the drone body 1 and the gas sensor 16.

[0028] Working principle: When in use, the third drive motor 13 drives the swing arm 21 to rotate through the second rotating shaft, so that the swing arm 21 and the bottom surface of the unmanned aerial vehicle body 1 are in a horizontal state, and then the unmanned aerial vehicle body 1 drives the gas sensor 16 to rise and fall slowly and at a low speed, so that the vertically arranged gas pipeline can be detected. When the swing arm 21 and the bottom surface of the unmanned aerial vehicle body 1 are in a vertical state, the unmanned aerial vehicle body 1 drives the gas sensor 16 to move in the horizontal direction, so that the horizontally arranged gas pipeline can be detected. At the same time, the second drive motor 12 drives the circular plate 6 to rotate through the first rotating shaft 11, so that when the gas pipelines on the left and right sides of the unmanned aerial vehicle body 1 are gas-detected, there is no need to turn the direction, and the gas sensor 16 is radially movably connected to the bottom surface of the circular plate 6 through the screw 9, the first drive motor 7 and the electric push rod 14, so as to facilitate the fine adjustment of the distance between the gas sensor 16 and the gas pipeline, so as to avoid the leaked gas being blown away by the wind force of the blades on the unmanned aerial vehicle body 1 when the unmanned aerial vehicle body 1 drives the gas sensor 16 to adjust the distance between the sensor and the gas pipeline, thereby affecting the accuracy of the data detected by the gas sensor 16.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An unmanned aerial vehicle detection system for detecting gas leaks by laser, comprising an unmanned aerial vehicle (1), characterized in that: The center of the bottom of the unmanned aerial vehicle (1) is rotatably connected to a circular plate (6), the bottom surface of the circular plate (6) is radially movably connected to a guide block (8), the end of the guide block (8) is movably connected to a swing arm (21), the end of the swing arm (21) is provided with a gas sensor (16), and a support plate (2) is fixed on each side of the unmanned aerial vehicle (1), and the bottom surface of each support plate (2) is provided with two mirror-symmetrical buffer parts.

2. The laser gas leak detection system for unmanned aerial vehicles according to claim 1, characterized in that: The buffer component comprises a support rod (3) vertically fixed to the bottom surface of the support plate (2); a buffer groove (22) is vertically provided on the bottom surface of the support rod (3); a spring (23) is vertically fixed in the buffer groove (22); the end of the spring (23) is fixedly connected to a buffer rod (4); the buffer rod (4) is movably connected in the buffer groove (22); and the end of the buffer rod (4) is fixedly connected to the buffer plate (5).

3. The laser gas leak detection system for unmanned aerial vehicles according to claim 2 is characterized in that: Two mirror-symmetrical second slide grooves (24) are vertically formed on the inner wall of the buffer groove (22), a second sliding block (25) is slidably connected in each of the second slide grooves (24), and the two second sliding blocks (25) are fixedly connected to the buffer rod (4).

4. The laser gas leak detection system for unmanned aerial vehicles according to claim 1, characterized in that: A second drive motor (12) is vertically fixed at the bottom center of the unmanned aerial vehicle body (1), the output end of the second drive motor (12) is transmission-connected to the first rotating shaft (11), the first rotating shaft (11) is vertically fixed to the top center of the circular plate (6), a threaded hole (19) is horizontally penetrated through the side surface of the guide block (8), the internal thread of the threaded hole (19) is threaded with a screw rod (9), one end of the screw rod (9) is rotationally connected to a support seat (10), the support seat (10) is fixed to the bottom surface of the circular plate (6), and the other end is transmission-connected to a first drive motor (7), the first drive motor (7) is horizontally fixed to the bottom surface of the circular plate (6).

5. The laser gas leak detection system for unmanned aerial vehicles according to claim 1, characterized in that: A groove (20) is formed at the end of the guide block (8), the swing arm (21) is movably connected in the groove (20), a through hole is horizontally passed through the side of the swing arm (21), a second rotating shaft is fixedly sleeved in the through hole, the second rotating shaft is rotatably connected to the inner wall of the groove (20), a third drive motor (13) is horizontally fixed on one side of the guide block (8), the output end of the third drive motor (13) is transmission-connected to the end of the second rotating shaft, the end of the swing arm (21) is fixedly connected to the electric push rod (14), the end of the electric push rod (14) is fixedly connected to the support block (15), and the gas sensor (16) is fixed on the support block (15).

6. The laser gas leak detection unmanned aerial vehicle detection system according to claim 1, characterized in that: A first sliding groove (17) is radially formed on the bottom surface of the circular plate (6), a first sliding block (18) is slidably connected in the first sliding groove (17), the first sliding block (18) is fixed on the top surface of the guide block (8), and the gas sensor (16) is a laser gas sensor.

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