Field volatile organic compound environment monitor based on infrared unmanned aerial vehicle

Abstract

The invention relates to the technical field of environment monitoring, and discloses a field volatile organic compound environment monitor based on an infrared unmanned aerial vehicle, which comprises a connecting frame, an electric telescopic rod is arranged on the connecting frame, a monitor body is arranged on the connecting frame, a detection tank I is mounted in the monitor body, and a flow guide block is fixedly connected to the inner wall of the monitor body. The stability of the monitor body can be improved, various interferences caused by flight can be directly counteracted, the field volatile organic compound detection precision can be greatly improved, stable gas collection and light path precision maintenance can be ensured to ensure data accuracy, the test precision of the device on volatile organic compounds in gas is improved, and the device is suitable for popularization and application. Cross infection can be avoided, the purity of target gas is guaranteed, the test analysis precision of the detection module is guaranteed, equipment loss caused by impurities is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This invention relates to the field of environmental monitoring technology, specifically to a field volatile organic compound (VOC) environmental monitoring instrument based on an infrared unmanned aerial vehicle (UAV). Background Technology

[0002] The core of the monitoring instrument carried by the UAV based on infrared spectroscopy technology is to integrate the Fourier transform infrared detection module with the UAV platform. The rigid structure ensures flight stability, and the design of the openable and closable extraction port prevents cross-contamination during movement. After landing, it can accurately collect gas. It can break through the coverage limitations of fixed monitoring stations, realize non-contact rapid monitoring, solve the problems of difficult and inefficient source tracing in the field, and provide efficient technical support for pollution investigation.

[0003] Patent CN208458799U discloses a portable environmental monitoring device, including a monitoring body. A temperature sensor is fixedly installed on the front side of the monitoring body, and a humidity sensor is fixedly installed on the front side of the monitoring body near the temperature sensor. A display screen is located on the front side of the monitoring body below the humidity sensor. The monitoring body is internally connected to a protective device. By providing a lanyard, the monitoring body can be easily carried in the hand, making it convenient for staff to carry when traveling. The combination of a ring, a rotating cover, and a button protects the button, preventing staff from accidentally touching it and activating the monitoring body, thus wasting the monitoring body's power. It also prevents staff from accidentally spilling liquids on the upper surface of the monitoring body, which could damage the internal parts of the monitoring body.

[0004] However, when using the above-mentioned device, after the detector is installed and reinforced, it is difficult to open the extraction port of the detector simultaneously, which reduces the speed of gas testing and monitoring, and affects the efficiency and accuracy of subsequent gas monitoring and testing. Therefore, an outdoor volatile organic compound environmental monitor based on infrared UAV is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an outdoor volatile organic compound environmental monitoring instrument based on infrared UAV, which addresses the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a field volatile organic compound (VOC) environmental monitoring instrument based on an infrared UAV, comprising a connecting frame, an electric telescopic rod mounted on the connecting frame, a monitoring instrument body mounted on the connecting frame, a detection tank installed inside the monitoring instrument body, a flow guide block fixedly connected to the inner wall of the monitoring instrument body, a pump fixedly connected to the front of the flow guide block, a filter column fixedly connected to the inner wall of the monitoring instrument body, an L-shaped block fixedly connected to the telescopic end of the electric telescopic rod, and an elastic telescopic rod fixedly connected to the left side of the connecting frame, the telescopic end of the elastic telescopic rod being fixed... The L-block is connected to a protruding rod block. A fixed column is fixedly connected to the front of the L-block. An L-rod is fixedly connected to the circumferential surface of the fixed column. A slip ring is slidably connected to the circumferential surface of the filter column. A top column is fixedly connected to the front of the slip ring. A hinge rod is rotatably connected to the circumferential surface of the filter column via a torsion spring. A sealing plate is fixedly connected to the rear of the hinge rod. An infrared spectral detector is installed on the inner wall of the detection tank. This increases the stability of the monitoring instrument body, directly counteracts various interferences caused by flight, significantly improves the accuracy of volatile organic compound detection in the field, and ensures stable gas collection and precise optical path to guarantee accurate data.

[0007] Preferably, the inner wall of the monitor body is provided with a lifting mechanism, the inner wall of the filter column is provided with a sealing mechanism for sealing, the convex rod block is located on the movement trajectory of the L block, and the L block is used to push the convex rod block to move. The slip ring is fixedly connected to the inner wall of the L rod. The detection tank is connected to the guide block, the guide block is connected to the extraction pump, and the extraction pump is connected to the filter column. This improves the detection accuracy of the device for volatile organic compounds in the gas, avoids cross-contamination, ensures the purity of the target gas, ensures the testing and analysis accuracy of the detection module, reduces the wear and tear of impurities on the equipment, and extends its service life.

[0008] Preferably, the convex rod block contacts the connecting frame, and the convex rod block is used to fix and limit the monitoring instrument body. The hinge rod is located on the movement trajectory of the top column. The top column contacts the filter column, and the top column is used to push the hinge rod to rotate. The sealing plate contacts the filter column. The movement of the fixed column will drive the L rod to move. During the movement of the L rod, the L rod will synchronously drive the slip ring to move. At this time, the slip ring will slide on the surface of the filter column. The movement of the slip ring will drive the top column to move.

[0009] Preferably, the lifting mechanism includes a slider, which is fixedly connected to the inner wall of a slip ring. A sealing arc plate is fixedly connected to the front of the slip ring. A guide cone is fixedly connected to the inner wall of the slider, and a diverting cone is fixedly connected to the inner wall of the guide cone. This improves the accuracy and representativeness of the gas testing and detection of the device, reduces air dilution interference, and ensures that the guide cone is accurately aligned with the extraction port, reducing the probability of surrounding clean air mixing into the gas to be tested.

[0010] Preferably, the lifting mechanism further includes a motor, which is fixedly connected to the rear of the filter column. The output end of the motor is fixedly connected to a rotating column, and a gear is fixedly connected to the circumferential surface of the rotating column. A gear ring is rotatably connected to the inner wall of the guide block, and an open ring is fixedly connected to the rear of the gear ring. A detection tank two is fixedly connected to the inner wall of the monitoring instrument body, allowing gas detection testing to be performed inside the detection tank two through the open opening. This enables subsequent data comparison, improves the accuracy of the test data of the device, and increases the testing efficiency of the device.

[0011] Preferably, the sealing arc plate contacts the filter column and is used to initially seal the filter column. The guide cone is slidably connected to the inner wall of the filter column and is used to accelerate the gas intake speed. The detection tank is connected to the guide block. The gear meshes with the gear ring. The output end of the motor drives the rotating column to rotate. The rotation of the rotating column drives the gear to rotate. During the rotation of the gear, the gear can drive the gear ring to rotate. At this time, the gear ring can rotate on the inner wall of the guide block.

[0012] Preferably, the sealing mechanism includes a second elastic telescopic rod, which is fixedly connected to the inner wall of the guide block. A connecting plate is fixedly connected to the telescopic end of the second elastic telescopic rod. A groove block is fixedly connected to the inner wall of the connecting plate. A roller is rotatably connected to the inner wall of the groove block. A guide arc block is fixedly connected to the inner wall of the opening ring. This mechanism can close the connection between the guide block and the first detection tank, ensuring the volume of gas entering the second detection tank. This improves the detection smoothness of the device and prevents the gas from flowing back after detection, thus affecting the subsequent detection accuracy.

[0013] Preferably, the sealing mechanism further includes a counterweight block, which is fixedly connected to the front of the hinge rod, and a sealing ring is fixedly connected to the circumferential surface of the sealing plate, which can improve the service life of the device and enhance the accuracy and efficiency of subsequent testing.

[0014] Preferably, the roller is located on the movement trajectory of the guide arc block, and the guide arc block is used to push the roller to move. The groove block contacts the guide block, and the groove block is used to close the opening of the guide block. The sealing ring contacts the filter column, and the sealing ring is used to seal the gap between the filter column and the sealing plate. The top column will no longer contact the hinge rod. At this time, the hinge rod will be reset and rotated by its own torsion spring, and the hinge rod will drive the sealing plate to reset.

[0015] The present invention, by adopting the above technical solution, can bring the following beneficial effects: 1. This infrared UAV-based field volatile organic compound (VOC) environmental monitoring instrument, through the coordinated movement of the connecting frame, electric telescopic rod, monitoring instrument body, detection tank, guide block, extraction pump, filter column, L-block, elastic telescopic rod, protruding rod block, fixed column, L-rod, slip ring, top column, hinge rod, and sealing plate, can increase the stability of the monitoring instrument body, directly counteract various interferences caused by flight, significantly improve the accuracy of VOC detection in the field, ensure stable gas collection and maintain optical path precision to ensure data accuracy, improve the device's testing accuracy for VOCs in gases, avoid cross-contamination, ensure the purity of the target gas, ensure the testing and analysis accuracy of the detection module, reduce the wear and tear of impurities on the equipment, and extend its service life.

[0016] 2. This infrared UAV-based field volatile organic compound (VOC) environmental monitoring instrument improves the accuracy and representativeness of gas testing through the coordinated movement of the slider, sealing arc plate, guide cone, diverting cone, motor, rotating column, gear, gear ring, opening ring, and detection tank 2. It reduces air dilution interference, ensures the guide cone is precisely aligned with the extraction port, reduces the probability of surrounding clean air mixing with the gas to be tested, and allows gas detection testing to be performed inside the detection tank 2 through the open opening. It also enables subsequent data comparison, improving the accuracy of the test data and increasing the testing efficiency of the device.

[0017] 3. This infrared UAV-based field volatile organic compound environmental monitoring instrument, through the coordinated movement of the elastic telescopic rod, connecting plate, trough block, roller, guide arc block, counterweight block, and sealing ring, can close the connection between the guide block and the detection tank, ensuring the volume of gas entering the detection tank, improving the detection smoothness of the device, preventing the gas from flowing back after detection and affecting the subsequent detection accuracy, extending the service life of the device, and improving the subsequent detection accuracy and efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a half-sectional view of the main structure of the monitoring instrument of the present invention; Figure 3 This is a schematic diagram of the protruding rod block structure of the present invention; Figure 4 This is a schematic diagram of the filter column structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle; Figure 6 This is a schematic diagram of the lifting mechanism of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point B in the middle; Figure 8 For the present invention Figure 6 Enlarged view of the structure at point C; Figure 9 This is a schematic diagram of the sealing mechanism of the present invention; Figure 10 This is a schematic diagram of the sealing ring structure of the present invention.

[0019] In the diagram: 1. Connecting frame; 2. Electric telescopic rod; 3. Monitor body; 4. Detection tank one; 5. Guide block; 6. Extraction pump; 7. Filter column; 8. Lifting mechanism; 9. Sealing mechanism; 10. L-block; 11. Elastic telescopic rod one; 12. Protruding rod block; 13. Fixed column; 14. L-rod; 15. Slip ring; 16. Top column; 17. Hinge rod; 18. Sealing plate; 801. Sliding block; 802. Sealing arc plate; 803. Guide cone column; 804. Diverting cone plate; 805. Motor; 806. Rotating column; 807. Gear; 808. Gear ring; 809. Opening ring; 810. Detection tank two; 901. Elastic telescopic rod two; 902. Connecting plate; 903. Groove block; 904. Roller; 905. Guide arc block; 906. Counterweight block; 907. Sealing ring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-10One embodiment of the present invention is: a field volatile organic compound (VOC) environmental monitoring instrument based on an infrared UAV, comprising a connecting frame 1, an electric telescopic rod 2 mounted on the connecting frame 1, a monitoring instrument body 3 mounted on the connecting frame 1, a detection tank 4 installed inside the monitoring instrument body 3, a flow guide block 5 fixedly connected to the inner wall of the monitoring instrument body 3, a pump 6 fixedly connected to the front of the flow guide block 5, a filter column 7 fixedly connected to the inner wall of the monitoring instrument body 3, an L-block 10 fixedly connected to the telescopic end of the electric telescopic rod 2, and a left side of the connecting frame 1... A flexible telescopic rod 11 is fixedly connected to the side. A protruding rod block 12 is fixedly connected to the telescopic end of the flexible telescopic rod 11. A fixed column 13 is fixedly connected to the front of the L block 10. An L rod 14 is fixedly connected to the circumferential surface of the fixed column 13. A slip ring 15 is slidably connected to the circumferential surface of the filter column 7. A top column 16 is fixedly connected to the front of the slip ring 15. A hinge rod 17 is rotatably connected to the circumferential surface of the filter column 7 through a torsion spring. A sealing plate 18 is fixedly connected to the rear of the hinge rod 17. An infrared spectral detector is installed on the inner wall of the detection tank 4. Before using the device, the operator first needs to install and fix the connecting frame 1 to the base of the infrared drone. After installation, the operator can slide the monitoring instrument body 3 into the inner wall of the connecting frame 1. With the preparation complete, the drone drives the monitoring instrument body 3 and related components to move upwards to the area to be detected. At this time, the electric telescopic rod 2 will start, and the telescopic end of the electric telescopic rod 2 will drive the L-block 10 to move. After moving a certain distance, the L-block 10 will contact the arc surface of the protruding rod block 12 and press and push the protruding rod block 12 to move. After moving a certain distance, the protruding rod block 12 will contact the monitoring instrument body 3, and... When the gas is inserted into the inner wall of the monitor body 3, the extraction pump 6 will start. The extraction pump 6 can draw in the gas from the designated area through the filter column 7 and discharge it into the guide block 5. The gas inside the guide block 5 can enter the interior of the detection tank 4. At this time, the infrared spectrometer inside the detection tank 4 can detect the extracted gas. After the protruding rod 12 moves, the protruding rod 12 can increase the stability of the monitor body 3, directly offset various interferences caused by flight, greatly improve the detection accuracy of volatile organic compounds in the field, ensure stable gas collection and maintain the accuracy of the optical path to ensure data accuracy, and improve the testing accuracy of the device for volatile organic compounds in the gas. The inner wall of the monitor body 3 is provided with a lifting mechanism 8, the inner wall of the filter column 7 is provided with a sealing mechanism 9 for sealing, the protruding rod block 12 is located on the movement trajectory of the L block 10, and the L block 10 is used to push the protruding rod block 12 to move, the slip ring 15 is fixedly connected to the inner wall of the L rod 14, the detection tank 4 is connected to the guide block 5, the guide block 5 is connected to the extraction pump 6, the extraction pump 6 is connected to the filter column 7, the protruding rod block 12 is in contact with the connecting frame 1, and the protruding rod block 12 is used to fix and limit the monitor body 3, the hinge rod 17 is located on the movement trajectory of the top column 16, the top column 16 is in contact with the filter column 7, and the top column 16 is used to push the hinge rod 17 to rotate, and the sealing plate 18 is in contact with the filter column 7; When the device is located in the designated area, during the movement of L-block 10, the movement of L-block 10 will drive the fixed column 13 to move, and the movement of the fixed column 13 will drive the L-rod 14 to move. During the movement of L-rod 14, L-rod 14 will simultaneously drive the slip ring 15 to move. At this time, the slip ring 15 will slide on the surface of the filter column 7. The movement of the slip ring 15 will drive the top column 16 to move. After moving a certain distance, the top column 16 will contact the hinge rod 17 and push the hinge rod 17 to rotate. During the rotation of the hinge rod 17, the hinge rod 17 can simultaneously drive the sealing plate 18 to rotate. After rotating a certain angle, the sealing plate 18 can completely open the opening of the filter column 7. This operation can avoid cross-contamination, ensure the purity of the target gas, ensure the testing and analysis accuracy of the detection module, reduce the wear and tear of impurities on the equipment, and extend its service life. Overall working principle: After the convex rod 12 moves, it can increase the stability of the monitoring instrument body 3, directly counteract various interferences caused by flight, significantly improve the detection accuracy of volatile organic compounds in the field, ensure stable gas collection and maintain the accuracy of the optical path to ensure data accuracy, and improve the device's testing accuracy for volatile organic compounds in the gas. The sealing plate 18 can completely open the opening of the filter column 7. This operation can avoid cross-contamination, ensure the purity of the target gas, ensure the testing and analysis accuracy of the detection module, reduce the wear and tear of impurities on the equipment, and extend its service life.

[0022] Please see Figures 1-10 Based on the above embodiments, in another embodiment of the present invention, the lifting mechanism 8 includes a slider 801, the slider 801 is fixedly connected to the inner wall of the slip ring 15, the front part of the slip ring 15 is fixedly connected to a sealing arc plate 802, the inner wall of the slider 801 is fixedly connected to a guide cone 803, and the inner wall of the guide cone 803 is fixedly connected to a diversion cone plate 804. When the device is started, the movement of the slip ring 15 will synchronously drive the slider 801 to move, and the slip ring 15 will also drive the sealing arc plate 802 to move. When the slider 801 moves, the slider 801 will drive the guide cone 803 to move, and the movement of the guide cone 803 will drive the diversion cone 804 to move synchronously. At this time, as the sealing plate 18 opens the opening of the filter column 7, the guide cone 803 can drive the diversion cone 804 to move a certain distance. When the guide cone 803 reaches the opening of the filter column 7 and moves out, the cone design of the guide cone 803 can improve the accuracy and representativeness of the gas testing and detection of the device, reduce air dilution interference, and the guide cone 803 can accurately align with the extraction port, reducing the probability of the surrounding clean air mixing into the gas to be tested. The lifting mechanism 8 also includes a motor 805, which is fixedly connected to the rear of the filter column 7. The output end of the motor 805 is fixedly connected to a rotating column 806. A gear 807 is fixedly connected to the circumferential surface of the rotating column 806. A toothed ring 808 is rotatably connected to the inner wall of the guide block 5. An open ring 809 is fixedly connected to the rear of the toothed ring 808. A detection tank 810 is fixedly connected to the inner wall of the monitor body 3. A sealing arc plate 802 contacts the filter column 7 and is used to initially seal the filter column 7. A guide cone 803 is slidably connected to the inner wall of the filter column 7 and is used to accelerate the gas intake speed. The detection tank 810 is connected to the guide block 5. The gear 807 meshes with the toothed ring 808. After the device has been running for a period of time, the motor 805 will start, and the output of the motor 805 will drive the rotating column 806 to rotate. The rotation of the rotating column 806 will drive the gear 807 to rotate. During the rotation of the gear 807, the gear 807 can drive the gear ring 808 to rotate. At this time, the gear ring 808 can rotate on the inner wall of the guide block 5. At the same time, during the rotation of the gear ring 808, the gear ring 808 can drive the opening ring 809 to rotate. When the opening ring 809 rotates to a certain angle, the opening ring 809 can open the gas connection port between the second detection tank 810 and the guide block 5. At this time, the gas inside the guide block 5 can enter the interior of the second detection tank 810 through the open opening for gas detection testing. This allows for subsequent data comparison, improves the accuracy of the test data of the device, and improves the testing efficiency of the device. The sealing mechanism 9 includes an elastic telescopic rod 901, which is fixedly connected to the inner wall of the guide block 5. The telescopic end of the elastic telescopic rod 901 is fixedly connected to a connecting plate 902. The inner wall of the connecting plate 902 is fixedly connected to a groove block 903. The inner wall of the groove block 903 is rotatably connected to a roller 904. The inner wall of the opening ring 809 is fixedly connected to a guide arc block 905. When the device is in use, the open ring 809 rotates, which drives the guide arc block 905 to rotate synchronously. After rotating a certain angle, the arc surface of the guide arc block 905 contacts the circumferential surface of the roller 904. At this time, the guide arc block 905 can apply a squeezing force to the roller 904, which can push the roller 904 to move. The movement of the roller 904 will drive the groove block 903 to move. After the groove block 903 moves a certain distance, the groove block 903 can close the connection between the guide block 5 and the detection tank 4, which can ensure the volume of gas entering the detection tank 810, improve the detection smoothness of the device, and prevent the gas after detection from flowing back and affecting the subsequent detection accuracy. The sealing mechanism 9 also includes a counterweight 906, which is fixedly connected to the front of the hinge rod 17. A sealing ring 907 is fixedly connected to the circumferential surface of the sealing plate 18. The roller 904 is located on the movement trajectory of the guide arc block 905, and the guide arc block 905 is used to push the roller 904 to move. The groove block 903 contacts the guide block 5, and the groove block 903 is used to close the opening of the guide block 5. The sealing ring 907 contacts the filter column 7, and the sealing ring 907 is used to seal the gap between the filter column 7 and the sealing plate 18. After the device finishes testing, the top column 16 will reset and will no longer be in contact with the hinge rod 17. The hinge rod 17 will then reset and rotate via its own torsion spring. The hinge rod 17 will drive the sealing plate 18 to reset and rotate, and the hinge rod 17 will drive the counterweight 906 to reset and rotate. The counterweight 906 can ensure that the hinge rod 17 can be stably reset through its own gravity, avoiding the hinge rod 17 from getting stuck during rotation. At the same time, during the reset process, the sealing plate 18 will drive the sealing ring 907 to rotate. The sealing ring 907 can ensure the sealing integrity at the opening of the filter column 7, which can improve the service life of the device and improve the subsequent testing accuracy and efficiency. Overall working principle: The guide cone 803 reaches the opening of the filter column 7 and moves out. At this time, the conical design of the guide cone 803 can improve the accuracy and representativeness of the gas testing and detection of the device, reduce air dilution interference, and accurately align the guide cone 803 with the extraction port, reducing the probability of surrounding clean air mixing into the gas to be tested. This allows for subsequent data comparison, improves the accuracy of the test data of the device, increases the testing efficiency of the device, ensures the volume of gas entering the second detection tank 810, improves the detection smoothness of the device, and avoids the backflow of gas after detection, which would affect the accuracy of subsequent detection. The sealing plate 18 will drive the sealing ring 907 to rotate. The sealing ring 907 can ensure the sealing integrity at the opening of the filter column 7, improve the service life of the device, and improve the accuracy and efficiency of subsequent detection.

[0023] This invention provides a field volatile organic compound (VOC) environmental monitoring instrument based on an infrared UAV. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A field volatile organic compound (VOC) environmental monitoring instrument based on an infrared UAV, comprising a connecting frame (1), characterized in that: An electric telescopic rod (2) is provided on the connecting frame (1), and a monitoring instrument body (3) is provided on the connecting frame (1). A detection tank (4) is installed inside the monitoring instrument body (3). A flow guide block (5) is fixedly connected to the inner wall of the monitoring instrument body (3). A pump (6) is fixedly connected to the front of the flow guide block (5). A filter column (7) is fixedly connected to the inner wall of the monitoring instrument body (3). An L-block (10) is fixedly connected to the telescopic end of the electric telescopic rod (2). An elastic telescopic rod (11) is fixedly connected to the left side of the connecting frame (1). The telescopic end of rod 1 (11) is fixedly connected to a protruding rod block (12), the front part of the L block (10) is fixedly connected to a fixed column (13), the circumferential surface of the fixed column (13) is fixedly connected to an L rod (14), the circumferential surface of the filter column (7) is slidably connected to a slip ring (15), the front part of the slip ring (15) is fixedly connected to a top column (16), the circumferential surface of the filter column (7) is rotatably connected to a hinge rod (17) by a torsion spring, the rear part of the hinge rod (17) is fixedly connected to a sealing plate (18), and the inner wall of the detection tank 1 (4) is provided with an infrared spectral detector.

2. The field volatile organic compound environmental monitoring instrument based on infrared UAV according to claim 1, characterized in that: The inner wall of the monitoring instrument body (3) is provided with a lifting mechanism (8), the inner wall of the filter column (7) is provided with a sealing mechanism (9) for sealing, the convex rod block (12) is located on the movement trajectory of the L block (10), and the L block (10) is used to push the convex rod block (12) to move, the slip ring (15) is fixedly connected to the inner wall of the L rod (14), the detection tank (4) is connected to the guide block (5), the guide block (5) is connected to the extraction pump (6), and the extraction pump (6) is connected to the filter column (7).

3. The field volatile organic compound environmental monitoring instrument based on infrared UAV according to claim 2, characterized in that: The protruding rod block (12) contacts the connecting frame (1), and the protruding rod block (12) is used to fix and limit the main body (3) of the monitor. The hinge rod (17) is located on the movement trajectory of the top column (16). The top column (16) contacts the filter column (7), and the top column (16) is used to push the hinge rod (17) to rotate. The sealing plate (18) contacts the filter column (7).

4. The field volatile organic compound environmental monitoring instrument based on infrared UAV according to claim 3, characterized in that: The lifting mechanism (8) includes a slider (801), which is fixedly connected to the inner wall of the slip ring (15). A sealing arc plate (802) is fixedly connected to the front of the slip ring (15). A guide cone (803) is fixedly connected to the inner wall of the slider (801), and a diversion cone (804) is fixedly connected to the inner wall of the guide cone (803).

5. The field volatile organic compound environmental monitoring instrument based on infrared UAV according to claim 4, characterized in that: The lifting mechanism (8) also includes a motor (805), which is fixedly connected to the rear of the filter column (7). The output end of the motor (805) is fixedly connected to a rotating column (806). A gear (807) is fixedly connected to the circumferential surface of the rotating column (806). A toothed ring (808) is rotatably connected to the inner wall of the guide block (5). An open ring (809) is fixedly connected to the rear of the toothed ring (808). A detection tank (810) is fixedly connected to the inner wall of the monitoring instrument body (3).

6. The field volatile organic compound environmental monitoring instrument based on infrared UAV according to claim 5, characterized in that: The sealing arc plate (802) contacts the filter column (7) and is used to initially seal the filter column (7). The guide cone (803) is slidably connected to the inner wall of the filter column (7) and is used to accelerate the gas intake speed. The detection tank (810) is connected to the guide block (5). The gear (807) meshes with the gear ring (808).

7. A field volatile organic compound environmental monitoring instrument based on an infrared UAV according to claim 6, characterized in that: The sealing mechanism (9) includes an elastic telescopic rod two (901), which is fixedly connected to the inner wall of the guide block (5). The telescopic end of the elastic telescopic rod two (901) is fixedly connected to a connecting plate (902). The inner wall of the connecting plate (902) is fixedly connected to a groove block (903). The inner wall of the groove block (903) is rotatably connected to a roller (904). The inner wall of the opening ring (809) is fixedly connected to a guide arc block (905).

8. A field volatile organic compound environmental monitoring instrument based on an infrared UAV according to claim 7, characterized in that: The sealing mechanism (9) also includes a counterweight (906), which is fixedly connected to the front of the hinge rod (17), and a sealing ring (907) is fixedly connected to the circumferential surface of the sealing plate (18).

9. A field volatile organic compound environmental monitoring instrument based on an infrared UAV according to claim 8, characterized in that: The roller (904) is located on the movement trajectory of the guide arc block (905), and the guide arc block (905) is used to push the roller (904) to move. The groove block (903) is in contact with the guide block (5), and the groove block (903) is used to close the opening of the guide block (5). The sealing ring (907) is in contact with the filter column (7), and the sealing ring (907) is used to seal the gap between the filter column (7) and the sealing plate (18).

Images