A rotary-wing unmanned aerial vehicle (UAV) airborne gas sampling device

Abstract

This utility model relates to the field of gas sampling technology and discloses an airborne gas sampling device for a rotary-wing unmanned aerial vehicle (UAV). The device includes: a UAV body serving as the connecting entity; a sampling box connected to the UAV body via a connecting component; a connecting tube fixedly connected to the left end of the sampling box; a sleeve threadedly connected to the outer wall of the connecting tube; fixing boxes fixedly connected to both sides of the inner wall of the sleeve; a mounting ring slidably connected to the inner wall of the sleeve; and a filter screen disposed at the left end of the mounting ring. In this utility model, by activating an air pump, air is drawn into the sampling box through the sleeve and connecting tube. As the air enters the sleeve, the filter screen filters impurities in the air, thereby blocking dust, particulate matter, and other impurities from mixing with the target gas. This ensures that the collected gas sample accurately reflects the gas composition and concentration in the actual environment, making subsequent analysis results more reliable.

Description

Technical Field

[0001] This utility model relates to the field of gas sampling technology, and in particular to an airborne gas sampling device for a rotary-wing unmanned aerial vehicle. Background Technology

[0002] With the rapid development of technology, drone technology has gradually emerged and demonstrated strong application potential. Drones, with their maneuverability and ability to reach complex and dangerous areas, have brought new ideas and solutions to gas sampling work. Mounting gas sampling devices on drones can overcome the spatial limitations of traditional sampling methods, enabling efficient collection of gases at different altitudes and geographical locations.

[0003] When sampling air, dust, particulate matter, and other impurities in the air may be drawn into the sampling device and mixed with the target gas, thereby changing the composition and concentration of the gas and causing the sampling results to not accurately reflect the actual gas conditions. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an airborne gas sampling device for rotary-wing unmanned aerial vehicles (UAVs). This device uses an air pump to draw air into a sampling box via a sleeve and connecting pipe. As the air enters the sleeve, a filter removes impurities such as dust and particulate matter, preventing them from mixing with the target gas. This ensures that the collected gas sample accurately reflects the gas composition and concentration in the actual environment, making subsequent analysis results more reliable.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A rotary-wing unmanned aerial vehicle (UAV) airborne gas sampling device includes: a UAV body serving as the connecting entity; a sampling box connected to the UAV body via a connecting component; a connecting pipe fixedly connected to the left end of the sampling box; a sleeve threadedly connected to the outer wall of the connecting pipe; fixing boxes fixedly connected to both sides of the inner wall of the sleeve; an installation ring slidably connected to the inner wall of the sleeve; a filter screen disposed at the left end of the installation ring; a tension spring disposed between the installation ring and the inner wall of the fixing box; limit boxes fixedly connected to both sides of the inner wall of the sampling box; a sampling plate slidably connected to the inner wall of the limit boxes; a connecting box fixedly connected to both sides of the outer wall of the sampling box; and a pin slidably connected to the inner wall of the connecting box.

[0007] Furthermore, the left end of the mounting ring is fixedly connected with multiple limiting posts, and the inner wall of the sampling plate is provided with connection holes corresponding to the pins.

[0008] Furthermore, the outer wall of the sampling plate is slidably connected to the inner wall of the connecting box, and an air pump is fixedly connected to the inner wall of the sampling box.

[0009] Furthermore, one end of each tension spring is connected to the mounting ring, and the other end of each tension spring is connected to the inner wall of the fixing box.

[0010] Furthermore, the connection assembly includes a mounting box fixedly connected to the bottom of the UAV body. A knob is rotatably connected to the inner wall of the mounting box. The knob is connected to a turntable via a transmission assembly. Rotating blocks are rotatably connected to both sides of the bottom end of the turntable. Slides are slidably connected to both sides of the inner wall of the mounting box. Mounting plates are fixedly connected to the bottom ends of the slides. Insert blocks are fixedly connected to opposite ends of the mounting plates. A fixing block is fixedly connected to the top of the sampling box.

[0011] Furthermore, the outer wall of the turntable is rotatably connected to the inner wall of the mounting box, the top of the slide is rotatably connected to the bottom of the rotating block, and the inner wall of the knob is threaded with bolts.

[0012] Furthermore, the transmission assembly includes a worm located at the rear end of the knob and a worm wheel located on the outer wall of the turntable, wherein the worm and the worm wheel are meshed together.

[0013] Furthermore, the inner wall of the fixing block is provided with multiple mounting holes corresponding to the insertion block, and the outer wall of the insertion block is slidably connected to the inner wall of the mounting holes.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by starting the air pump, air is drawn into the sampling box through the sleeve and connecting pipe. When the air enters the sleeve, the filter screen filters the impurities in the air, thereby blocking dust, particulate matter and other impurities in the air from mixing with the target gas. This ensures that the collected gas sample can truly reflect the gas composition and concentration in the actual environment, making the subsequent analysis results more reliable.

[0016] 2. In this utility model, the rotary knob is turned to drive the turntable to rotate, the turntable drives the rotating block, the rotating block drives the slide, the slide drives the mounting plate to move, and when the mounting plate moves, it drives the insert block to disengage from the mounting hole, so that it can be put into a smaller packaging box or backpack, saving transportation space, reducing transportation costs, and also facilitating the transfer of equipment between different locations. Attached Figure Description

[0017] Figure 1 This is an isometric view of an airborne gas sampling device for a rotary-wing unmanned aerial vehicle (UAV) proposed in this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the sampling box structure of an airborne gas sampling device for a rotary-wing unmanned aerial vehicle (UAV) proposed in this utility model.

[0019] Figure 3This is a schematic diagram of the sleeve structure of an airborne gas sampling device for a rotary-wing unmanned aerial vehicle (UAV) proposed in this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the mounting box structure of the airborne gas sampling device for a rotary-wing unmanned aerial vehicle (UAV) proposed in this utility model.

[0021] Figure 5 This is a schematic cross-sectional view of the mounting box structure of an airborne gas sampling device for a rotary-wing unmanned aerial vehicle (UAV) proposed in this utility model.

[0022] Legend:

[0023] 1. UAV body; 2. Sampling box; 3. Connecting pipe; 4. Sleeve; 5. Fixing box; 6. Mounting ring; 7. Limiting post; 8. Tension spring; 9. Filter screen; 10. Limiting box; 11. Sampling plate; 12. Connecting box; 13. Pin; 14. Mounting box; 15. Knob; 16. Worm gear; 17. Worm wheel; 18. Turntable; 19. Rotating block; 20. Slide table; 21. Mounting plate; 22. Insert block; 23. Fixing block; 24. Mounting hole; 25. Air pump. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 2 - Figure 4 This utility model provides an embodiment of an airborne gas sampling device for a rotary-wing unmanned aerial vehicle (UAV), comprising: a UAV body 1 serving as the connecting main body; a sampling box 2 connected to the UAV body 1 via a connecting component; a connecting pipe 3 fixedly connected to the left end of the sampling box 2; a sleeve 4 threadedly connected to the outer wall of the connecting pipe 3; fixed boxes 5 fixedly connected to both sides of the inner wall of the sleeve 4; a mounting ring 6 slidably connected to the inner wall of the sleeve 4; a filter screen 9 provided at the left end of the mounting ring 6; a tension spring 8 provided between the mounting ring 6 and the inner wall of the fixed box 5; and fixed boxes 5 fixedly connected to both sides of the inner wall of the sampling box 2. A fixed connection is provided with a limiting box 10, and a sampling plate 11 is slidably connected to the inner wall of the limiting box 10. A connecting box 12 is fixedly connected to both sides of the outer wall of the sampling box 2. A pin 13 is slidably connected to the inner wall of the connecting box 12. A plurality of limiting posts 7 are fixedly connected to the left end of the mounting ring 6. A connection hole is provided on the inner wall of the sampling plate 11 corresponding to the pin 13. The outer wall of the sampling plate 11 is slidably connected to the inner wall of the connecting box 12. An air pump 25 is fixedly connected to the inner wall of the sampling box 2. One end of the tension spring 8 is connected to the mounting ring 6, and the other end of the tension spring 8 is connected to the inner wall of the fixed box 5.

[0026] Specifically, during gas sampling, the air pump 25 is activated. Its powerful suction draws a continuous stream of external air into the inner wall of the sampling box 2 through the sleeve 4 and connecting pipe 3. The moment the air enters the sleeve 4, the filter 9 begins to play a crucial role. Like a loyal guardian, it efficiently filters impurities in the air according to filtration principles. Dust, various particulate matter, and other impurities are successfully blocked by the filter 9. This is because the pore size of the filter 9 is carefully designed; particles larger than the pore size are directly intercepted, while particles smaller than the pore size are intercepted due to inertial impaction and adsorption. This effectively prevents these impurities from mixing with the target gas, ensuring that the collected gas sample accurately reflects the gas composition and concentration in the actual environment, providing a reliable guarantee for subsequent analysis results. When it is necessary to adjust the filter... When replacing the filter screen 9, the operation is simple and convenient. Just gently rotate the sleeve 4 to disengage it from the connecting tube 3. At this time, pull the mounting ring 6, which will drive the limiting post 7 to move upward, thereby releasing the limitation on the filter screen 9. In this way, the filter screen 9 can be easily taken out of the sleeve 4 for replacement. When installing a new filter screen 9, accurately place it inside the sleeve 4, and then release the mounting ring 6. Under the strong pulling force of the tension spring 8, the mounting ring 6 will quickly reset and drive the limiting post 7 to firmly limit the filter screen 9, ensuring that the filter screen 9 is installed securely and can perform its filtering function normally. When the gas sampling is completed and the sample needs to be removed, pull the pin 13 to disengage it from the inside of the sampling plate 11. Then, the sampling plate 11 can be smoothly and slowly pulled out from the inside of the sampling box 2 for subsequent sample processing.

[0027] Reference Figure 1 , Figure 2 and Figure 5 The connection assembly includes a mounting box 14 fixedly connected to the bottom of the UAV body 1. A knob 15 is rotatably connected to the inner wall of the mounting box 14. The knob 15 is connected to a turntable 18 via a transmission assembly. Rotating blocks 19 are rotatably connected to both sides of the bottom of the turntable 18. Slide tables 20 are slidably connected to both sides of the inner wall of the mounting box 14. Mounting plates 21 are fixedly connected to the bottom of each slide table 20. Insert blocks 22 are fixedly connected to opposite ends of each mounting plate 21. A fixing block is fixedly connected to the top of the sampling box 2. 23. The outer wall of the turntable 18 is rotatably connected to the inner wall of the mounting box 14. The top of the slide 20 is rotatably connected to the bottom of the turntable 19. The inner wall of the knob 15 is threaded with bolts. The transmission assembly includes a worm 16 located at the rear end of the knob 15 and a worm wheel 17 located on the outer wall of the turntable 18. The worm 16 and the worm wheel 17 are meshed together. The inner wall of the fixing block 23 is provided with multiple mounting holes 24 corresponding to the insertion block 22. The outer wall of the insertion block 22 is slidably connected to the inner wall of the mounting holes 24.

[0028] Specifically, when the drone body 1 and the sampling box 2 need to be stored separately, firstly, rotate knob 15. Knob 15 is connected to worm gear 16. During the rotation of knob 15, according to the transmission mechanism of worm wheel 17 and worm gear 16, worm gear 16 rotates accordingly. Worm gear 16 meshes with worm wheel 17, and the rotation of worm gear 16 drives worm wheel 17 to rotate around its own axis. Worm wheel 17 is also coaxially fixed with turntable 18. When worm wheel 17 rotates, turntable 18 also rotates synchronously. Turntable 18 is equipped with rotating block 19, which is connected to slide table 20 through a specific connection structure. When turntable 18 rotates, rotating block 19 rotates accordingly. Due to the connection method between rotating block 19 and slide table 20, the rotation of rotating block 19 is converted into linear movement of slide table 20. The mounting plates 21 are fixed together. When the slide table 20 moves, the mounting plates 21 also move. The inserts 22 on the mounting plates 21 were originally inserted into the mounting holes 24. As the mounting plates 21 move, the inserts 22 gradually detach from the mounting holes 24. In this way, the connection between the drone body 1 and the sampling box 2 is released, and they can be stored separately. After being stored separately, the volume of the two is greatly reduced compared to the overall state. At this time, they can be easily put into smaller packaging boxes or backpacks. This design greatly saves transportation space and reduces transportation costs. When it is necessary to transfer the equipment to different locations for work, it becomes more convenient, whether it is put into the trunk of a vehicle, carried on public transportation, or on foot to remote areas.

[0029] Working Principle: During use, the air pump 25 is activated to draw external air into the inner wall of the sampling box 2 via the sleeve 4 and connecting tube 3. As the air enters the sleeve 4, the filter 9 filters impurities, blocking dust, particulate matter, and other impurities from mixing with the target gas. This ensures the collected gas sample accurately reflects the gas composition and concentration in the actual environment, making subsequent analysis results more reliable. When the filter 9 needs replacement, rotate the sleeve 4 to detach it from the connecting tube 3. Pulling the mounting ring 6 then causes the limiting post 7 to release the filter 9 from its position. The filter 9 can then be removed for replacement. During installation, the filter 9 is placed inside the sleeve 4. The mounting ring 6 is then released. When the mounting ring 6 is released, the tension spring 8 pulls it, causing the limiting post 7 to move and restrict the filter. Net 9 is used for limiting. When the sample is removed, the pin 13 is pulled to disengage it from the inside of the sampling plate 11. Then the sampling plate 11 is pulled out from the inside of the sampling box 2. When it is necessary to separate the drone body 1 and the sampling box 2 for storage, the knob 15 is turned to drive the worm gear 16 to rotate. When the worm gear 16 rotates, it drives the worm wheel 17 to rotate. When the worm wheel 17 rotates, it drives the turntable 18 to rotate. When the turntable 18 rotates, it drives the rotating block 19 to rotate. When the rotating block 19 rotates, it drives the slide table 20 to move. When the slide table 20 moves, it drives the mounting plate 21 to move. When the mounting plate 21 moves, it drives the insert 22 to disengage from the inside of the mounting hole 24, so that it can be put into a smaller packaging box or backpack, saving transportation space, reducing transportation costs, and also facilitating the transfer of equipment between different locations.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary-wing unmanned aerial vehicle (UAV) airborne gas sampling device, characterized in that, include: The UAV body (1), which serves as the main body for connection, is connected to a sampling box (2) via a connecting component. A connecting pipe (3) is fixedly connected to the left end of the sampling box (2). A sleeve (4) is threadedly connected to the outer wall of the connecting pipe (3). Fixing boxes (5) are fixedly connected to both sides of the inner wall of the sleeve (4). An installation ring (6) is slidably connected to the inner wall of the sleeve (4). A filter screen (9) is provided at the left end of the installation ring (6). A tension spring (8) is provided between the installation ring (6) and the inner wall of the fixing box (5). Limiting boxes (10) are fixedly connected to both sides of the inner wall of the sampling box (2). A sampling plate (11) is slidably connected to the inner wall of the limiting box (10). A connecting box (12) is fixedly connected to both sides of the outer wall of the sampling box (2). A pin (13) is slidably connected to the inner wall of the connecting box (12).

2. The airborne gas sampling device for a rotary-wing unmanned aerial vehicle according to claim 1, characterized in that: The left end of the mounting ring (6) is fixedly connected to multiple limiting posts (7), and the inner wall of the sampling plate (11) is provided with connection holes corresponding to the pins (13).

3. The airborne gas sampling device for a rotary-wing unmanned aerial vehicle according to claim 1, characterized in that: The outer wall of the sampling plate (11) is slidably connected to the inner wall of the connecting box (12), and the inner wall of the sampling box (2) is fixedly connected to an air pump (25).

4. The airborne gas sampling device for a rotary-wing unmanned aerial vehicle according to claim 1, characterized in that: One end of each tension spring (8) is connected to the mounting ring (6), and the other end of each tension spring (8) is connected to the inner wall of the fixing box (5).

5. The airborne gas sampling device for a rotary-wing unmanned aerial vehicle according to claim 1, characterized in that: The connection assembly includes a mounting box (14) fixedly connected to the bottom of the UAV body (1). A knob (15) is rotatably connected to the inner wall of the mounting box (14). The knob (15) is connected to a turntable (18) via a transmission assembly. Rotating blocks (19) are rotatably connected to both sides of the bottom of the turntable (18). A slide table (20) is slidably connected to both sides of the inner wall of the mounting box (14). A mounting plate (21) is fixedly connected to the bottom of each slide table (20). An insert block (22) is fixedly connected to the opposite end of each mounting plate (21). A fixing block (23) is fixedly connected to the top of the sampling box (2).

6. The airborne gas sampling device for a rotary-wing unmanned aerial vehicle according to claim 5, characterized in that: The outer wall of the turntable (18) is rotatably connected to the inner wall of the mounting box (14), the top of the slide (20) is rotatably connected to the bottom of the turntable (19), and the inner wall of the knob (15) is threaded with bolts.

7. The airborne gas sampling device for a rotary-wing unmanned aerial vehicle according to claim 5, characterized in that: The transmission assembly includes a worm (16) located at the rear end of the knob (15) and a worm wheel (17) located on the outer wall of the turntable (18), wherein the worm (16) and the worm wheel (17) are meshed together.

8. The airborne gas sampling device for a rotary-wing unmanned aerial vehicle according to claim 5, characterized in that: The inner wall of the fixing block (23) is provided with a plurality of mounting holes (24) corresponding to the insert block (22), and the outer wall of the insert block (22) is slidably connected to the inner wall of the mounting holes (24).

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