Carbon sink area atmospheric sample collection and storage device

Abstract

This invention discloses an atmospheric sample collection and storage device for carbon sink areas, relating to the field of atmospheric sample collection technology. It includes an unmanned aerial vehicle (UAV) body with a power assembly rotatably connected around its perimeter. An upper base plate is fixedly connected to the bottom of the UAV body, and a lower base plate is slidably connected to the bottom of the upper base plate. A collection bag is disposed inside the upper and lower base plates. This invention employs an opening and closing gas collection mechanism to control the state of the collection bag at the bottom of the UAV. During flight, the UAV compresses the collection bag into a flat shape and places it inside the upper and lower base plates. During gas collection, the lower base plate slides downward relative to the upper base plate, and the flow guide pipe connected to the collection bag rotates to guide the downward airflow generated by the power assembly during UAV flight into the collection bag for automatic gas collection. After gas collection, the collection bag is sealed by the contact between the bottom frame and the inner wall of the slot, ensuring the cleanliness of the sample inside the collection bag.

Description

Technical Field

[0001] This invention relates to the field of atmospheric sample collection technology, specifically to an atmospheric sample collection and storage device for carbon sink areas. Background Technology

[0002] Carbon sink areas, as key ecological spaces that fix carbon dioxide through photosynthesis, require precise monitoring of their carbon sink efficiency for global climate governance. Current mainstream monitoring methods rely on vertical profile sampling and analysis of atmospheric carbon dioxide concentrations, and drones, due to their mobility, have become the preferred tool for high-altitude atmospheric sampling. However, implementing drone sampling in forest carbon sink areas faces the following technical bottlenecks: Space constraints: Numerous tree branches severely restrict the flight path of drones. Conventional straight flight mode is very likely to cause the drone to collide with the branches, forcing the sampling operation to adopt low-speed detour flight, which significantly reduces the sampling efficiency.

[0003] Sampling accuracy defects: In order to avoid obstacles, the drone is forced to fly in a non-target altitude range for compensation, which makes the collected samples unable to accurately reflect the carbon dioxide concentration gradient at a specific altitude.

[0004] Equipment compatibility issues: Traditional sampling devices often adopt an open airflow intake design, which can easily cause sample mixing in complex airflow environments. When the drone is forced to make an emergency stop to avoid obstacles, the sampling airflow is interrupted, resulting in insufficient sampling accuracy.

[0005] Based on this, the present invention designs an atmospheric sample collection and storage device for carbon sink areas to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an atmospheric sample collection and storage device for carbon sink areas to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an atmospheric sample collection and storage device for carbon sink areas, comprising an unmanned aerial vehicle (UAV) body, a power assembly rotatably connected around the UAV body, an upper base plate fixedly connected to the bottom of the UAV body, a lower base plate slidably connected to the bottom of the upper base plate, a collection bag disposed inside the upper and lower base plates, and further comprising: A transmission component is fixed to the upper end of the upper base plate. The transmission component has a lead screw internally connected to it. The bottom end of the lead screw passes through the upper base plate and is rotatably connected to the lower base plate. The opening and closing gas collection mechanism includes a rotating rod, which is located on one side of the upper base plate. A guide tube is embedded in one end of the rotating rod. A docking frame is fixedly connected to the bottom end of the upper base plate, and a docking plate is fixedly connected to the top end of the lower base plate. The air inlet end of the collection bag passes through the docking plate and the docking frame and docks with the guide tube.

[0008] As a further embodiment of the present invention, the opening and closing gas collection mechanism further includes a connecting plate, the connecting plate being fixed to the top of the upper base plate, a limiting seat being fixedly connected to the front end of the connecting plate, one end of the rotating rod being rotatably connected to the limiting seat, a torsion spring for resetting the rotating rod being provided inside the limiting seat, the top end of the docking plate passing through the connecting plate and being positioned above the connecting plate, a slot being provided inside the docking plate, a bottom frame being slidably connected inside the docking plate, protrusions being fixedly connected to both sides of the top end of the bottom frame, and a sliding groove being provided on one side of the docking plate for sliding connection with the protrusion; A pawl is fixedly connected to the rear end of the rotating rod, and a limiting shaft for restricting the rotation of the pawl is fixedly connected to the top end of the lower base plate.

[0009] As a further embodiment of the present invention, the rear end of the guide tube is helically connected to a threaded sleeve, and a rubber pad is fitted onto the surface of the threaded sleeve.

[0010] As a further embodiment of the present invention, a drive motor is fixedly connected to the top of the upper base plate, and the output end of the drive motor is fixedly connected to the transmission component.

[0011] As a further embodiment of the present invention, a driven rod is fixedly connected to the top of the lower base plate, and the top of the driven rod slides through the upper base plate and is positioned above the upper base plate.

[0012] As a further embodiment of the present invention, a connecting pipe is fixedly connected to the top of the collection bag, and the inlet end of the connecting pipe is sleeved on the outside of the threaded sleeve.

[0013] As a further embodiment of the present invention, a protective plate is fixedly connected to the outside of the power assembly.

[0014] As a further embodiment of the present invention, a filter screen is fixedly connected inside the top end of the guide tube.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention employs an opening and closing gas collection mechanism to control the state of the collection bag at the bottom of the drone. During flight, the drone compresses the collection bag into a flat shape and places it inside the upper and lower base plates. During gas collection, the lower base plate slides downward relative to the upper base plate to provide sufficient space for the expansion of the collection bag. By controlling the rotation of the guide pipe connected to the collection bag, the guide pipe rotates to the bottom of the drone's power component during gas collection, guiding the downward airflow generated by the power component when the drone is in the air into the collection bag to automatically collect the gas. After gas collection is completed, the collection bag is sealed by the contact between the bottom frame and the inner wall of the slot, so that when the drone returns to flight after collecting the gas, gases from other altitudes will no longer enter the collection bag, ensuring the cleanliness of the sample inside the collection bag. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the opening and closing gas collection mechanism; Figure 3 A schematic diagram of the rotating rod, guide tube, and threaded sleeve structure; Figure 4 This is an exploded view of the upper and lower base plates; Figure 5 This is a schematic diagram of the bottom frame structure; Figure 6 This is a schematic diagram showing the sliding state of the lower base plate relative to the upper base plate; Figure 7 This is a top view of the guide tube rotating relative to the upper base plate. Figure 8 This is a schematic diagram of the collection bag structure.

[0017] The attached diagram lists the components represented by each number as follows: 1. Unmanned aerial vehicle (UAV) body; 2. Power assembly; 3. Protective plate; 4. Upper base plate; 5. Lower base plate; 6. Rotating rod; 7. Guide pipe; 8. Connecting plate; 9. Lead screw; 10. Driven rod; 11. Transmission component; 12. Pawl; 13. Threaded sleeve; 14. Drive motor; 15. Connecting plate; 16. Limiting seat; 17. Connecting frame; 18. Slide groove; 19. Protrusion; 20. Limiting shaft; 21. Base frame; 22. Groove; 23. Collection bag; 24. Connecting pipe. Detailed Implementation

[0018] Please see Figure 1-8 This invention provides a technical solution: an atmospheric sample collection and storage device for carbon sink areas, comprising an unmanned aerial vehicle (UAV) body 1, a power assembly 2 rotatably connected around the UAV body 1, an upper base plate 4 fixedly connected to the bottom of the UAV body 1, a lower base plate 5 slidably connected to the bottom of the upper base plate 4, a collection bag 23 disposed inside the upper base plate 4 and the device, and further comprising: Transmission component 11 is fixed to the upper end of the upper base plate 4. The transmission component 11 is internally connected with a lead screw 9. The bottom end of the lead screw 9 passes through the upper base plate 4 and is rotatably connected to the lower base plate 5. The opening and closing gas collection mechanism includes a rotating rod 6, which is located on one side of the upper base plate 4. A guide pipe 7 is embedded in one end of the rotating rod 6. A docking frame 17 is fixedly connected to the bottom end of the upper base plate 4, and a docking plate 8 is fixedly connected to the top end of the lower base plate 5. The air inlet end of the collection bag 23 passes through the docking plate 8 and the docking frame 17 and docks with the guide pipe 7. See Figure 1 , Figure 2 , Figure 8After the collection bag 23 is squeezed, it is placed inside the upper base plate 4 and the lower base plate 5. The air inlet end of the collection bag 23 passes through the docking plate 8 and the docking frame 17 and connects with the guide pipe 7. The drone is started and flies to the designated altitude in the forest. When collecting atmospheric samples, the control transmission component 11 drives the lead screw 9 to rotate, pushing the lower base plate 5 to slide downward relative to the upper base plate 4. At the same time, the downward airflow of the power component 2 enters the guide pipe 7 when it is in the air and enters the collection bag 23 through the guide pipe 7. After being squeezed by the lower base plate 5, the collection bag 23 can expand to Figure 8 The atmospheric sample is collected in the state shown. After the bottom plate 5 slides down to the bottom, the gas collection mechanism will seal the air inlet of the collection bag 23. The purpose is to prevent gases at different altitudes from entering the collection bag 23 and interfering with the sample inside the collection bag 23 during the drone's return to the ground after the collection bag 23 has collected the atmospheric sample, thereby improving the cleanliness of the sample inside the collection bag 23. In addition, the width of the collection bag 23 after expansion will not exceed the width of the drone body 1. When flying and sampling in dense forests, the collection bag 23 will not come into contact with tree branches in areas where the drone body 1 can pass vertically, thus avoiding the collection bag 23 from contacting the landslide surface with tree branches.

[0019] As a further embodiment of the present invention, the opening and closing gas collection mechanism further includes a connecting plate 15, the connecting plate 15 is fixed to the top of the upper base plate 4, the front end of the connecting plate 15 is fixedly connected to a limiting seat 16, one end of the rotating rod 6 is rotatably connected to the limiting seat 16, the limiting seat 16 is provided with a torsion spring for resetting the rotating rod 6, the top end of the docking plate 8 passes through the connecting plate 15 and is disposed above the connecting plate 15, the docking plate 8 is provided with a slot 22, the docking plate 8 is slidably connected to a bottom frame 21, both sides of the top end of the bottom frame 21 are fixedly connected to protrusions 19 respectively, and one side of the docking plate 8 is provided with a sliding groove 18 for sliding connection with the protrusions 19; The rear end of the rotating rod 6 is fixedly connected to a pawl 12, the top end of the lower base plate 5 is fixedly connected to a limiting shaft 20 for limiting the rotation of the pawl 12, the rear end of the guide tube 7 is screwed to a threaded sleeve 13, the surface of the threaded sleeve 13 is fitted with a rubber pad, the top end of the collection bag 23 is fixedly connected to a connecting tube 24, the inlet end of the connecting tube 24 is fitted to the outside of the threaded sleeve 13, the top end of the upper base plate 4 is fixedly connected to a drive motor 14, and the output end of the drive motor 14 is fixedly connected to the transmission component 11. See Figures 2-8First, remove the threaded sleeve 13 from the rear end of the guide tube 7. Pass the front end of the connecting tube 24 through the docking frame 17 and the slot 22, and fit it onto the outside of the threaded sleeve 13. Then, reconnect the threaded sleeve 13 to the guide tube 7 using a screw thread. This will fix the connecting tube 24 to the rear end of the guide tube 7. When the UAV body 1 flies to the designated altitude, start the drive motor 14, which drives the lead screw 9 to rotate via the transmission component 11. This causes the lower base plate 5 to slide downwards relative to the upper base plate 4. When the lower base plate 5 slides downwards until the limiting shaft 20 disengages from the upper base plate 4, the limiting shaft 20 disengages from the pawl 12. The rotating rod 6 rotates by an angle θ under the restoring force of the torsion spring (e.g., ...). Figure 7 As shown), the top of the guide pipe 7 is rotated to the bottom of the power component 2. The purpose is to receive the downward airflow generated when the power component 2 rotates, and to transport it through the guide pipe 7 to the inside of the collection bag 23 that is connected to the guide pipe 7 to achieve gas collection. As the lower base plate 5 slides down, the protrusion 19 inside the mating plate 8 slides down along with it and gradually slides to the position where it contacts the upper surface of the connecting plate 15. Then, the mating plate 8 slides downward relative to the protrusion 19, while the protrusion 19 is restricted by the connecting plate 15 and cannot continue to slide down. The lower base plate 5 continues to slide down until it reaches a distance of L (e.g., ...). Figure 6 As shown), at this time, the upper inner wall of the groove 22 inside the docking plate 8 slides to the position of contacting the lower inner wall of the bottom frame 21. Since the connecting tube 24 of the collection bag 23 is placed inside the groove 22, the connecting tube 24 is clamped and sealed by the contact between the top of the groove 22 and the bottom of the bottom frame 21, so as to achieve the sealing treatment after the gas collection of the collection bag 23 is completed. After the collection is completed, control the drone body 1 to return to the ground, remove the threaded sleeve 13, and remove the connecting tube 24 from the threaded sleeve 13. Replace with a new collection bag 23 and place it inside the upper base plate 4 and lower base plate 5. Manually rotate the rotating rod 6 and control the lower base plate 5 to slide upward to squeeze and fix the collection bag 23 inside the upper base plate 4 and lower base plate 5. At the same time, the position of the limiting shaft 20 in contact with the pawl 12 restricts the rotation of the rotating rod 6, so that the sample can be collected repeatedly.

[0020] As a further aspect of the present invention, ...

[0021] As a further embodiment of the present invention, a driven rod 10 is fixedly connected to the top of the lower base plate 5, and the top of the driven rod 10 slides through the upper base plate 4 and is disposed above the upper base plate 4; See Figure 2 When the driven rod 10 slides downward relative to the upper base plate 4 on the lower base plate 5, it restricts the relative sliding between the upper base plate 4 and the lower base plate 5, so that the lower base plate 5 can slide more smoothly.

[0022] As a further embodiment of the present invention, a protective plate 3 is fixedly connected to the outside of the power assembly 2; See Figure 1The protective plate 3 provides protection for the power component 2. Especially when collecting atmospheric samples in the forest, the high-speed rotating power component 2 is prone to contact with tree branches and collision. The protective plate 3 can effectively protect the power component 2.

[0023] As a further embodiment of the present invention, a filter screen is fixedly connected inside the top end of the guide pipe 7. The filter screen prevents impurities from entering the collection bag 23 and causing blockage of the guide pipe 7, thus affecting the air intake effect.

[0024] Working principle: First, remove the threaded sleeve 13 from the rear end of the guide tube 7. Pass the front end of the connecting tube 24 through the docking frame 17 and the slot 22, and fit it onto the outside of the threaded sleeve 13. Then, reconnect the threaded sleeve 13 to the guide tube 7 using a screw thread, thus fixing the connecting tube 24 to the rear end of the guide tube 7. When the UAV body 1 flies to the designated altitude, the drive motor 14 is started, driving the lead screw 9 to rotate via the transmission component 11. This causes the lower base plate 5 to slide downwards relative to the upper base plate 4. When the lower base plate 5 slides downwards until the limiting shaft 20 disengages from the upper base plate 4, the limiting shaft 20 disengages from the pawl 12. The rotating rod 6 rotates by an angle θ under the restoring force of the torsion spring (e.g., ...). Figure 7 As shown), the top of the guide pipe 7 is rotated to the bottom of the power component 2. The purpose is to receive the downward airflow generated when the power component 2 rotates, and to transport it through the guide pipe 7 to the inside of the collection bag 23 that is connected to the guide pipe 7 to achieve gas collection. As the lower base plate 5 slides down, the protrusion 19 inside the docking plate 8 slides down along with it and gradually slides to the position of contact with the upper end face of the connecting plate 15. Then the docking plate 8 slides downward relative to the protrusion 19, while the protrusion 19 is restricted by the connecting plate 15 and cannot continue to slide down. The lower base plate 5 continues to slide down until it slides a distance L. At this time, the upper inner wall of the groove 22 inside the docking plate 8 slides to the position of contact with the lower inner wall of the bottom frame 21. Since the connecting tube 24 of the collection bag 23 is placed inside the groove 22, the connecting tube 24 is clamped and sealed by the contact between the top of the groove 22 and the bottom of the bottom frame 21, thereby achieving the sealing treatment after the gas collection of the collection bag 23 is completed. After the collection is completed, control the drone body 1 to return to the ground, remove the threaded sleeve 13, and remove the connecting tube 24 from the threaded sleeve 13. Replace with a new collection bag 23 and place it inside the upper base plate 4 and lower base plate 5. Manually rotate the rotating rod 6 and control the lower base plate 5 to slide upward to squeeze and fix the collection bag 23 inside the upper base plate 4 and lower base plate 5. At the same time, the position of the limiting shaft 20 in contact with the pawl 12 restricts the rotation of the rotating rod 6, so that the sample can be collected repeatedly.

Claims

1. A carbon sink area atmospheric sample collection and storage device, comprising an unmanned aerial vehicle (1), wherein a power assembly (2) is rotatably connected to the four sides of the unmanned aerial vehicle (1), characterized in that: The unmanned aerial vehicle (1) is fixedly connected to an upper base plate (4) at its bottom end, and a lower base plate (5) is slidably connected to the bottom of the upper base plate (4). A collection bag (23) is provided inside the upper base plate (4) and the lower base plate (5), and the unmanned aerial vehicle also includes: The transmission component (11) is fixed to the upper end of the upper base plate (4). The transmission component (11) is internally connected with a lead screw (9). The bottom end of the lead screw (9) passes through the upper base plate (4) and is rotatably connected to the lower base plate (5). The opening and closing gas collection mechanism includes a rotating rod (6), which is located on one side of the upper base plate (4). A guide pipe (7) is embedded in one end of the rotating rod (6). A docking frame (17) is fixedly connected to the bottom end of the upper base plate (4). A docking plate (8) is fixedly connected to the top end of the lower base plate (5). The air inlet end of the collection bag (23) passes through the docking plate (8) and the docking frame (17) and docks with the guide pipe (7).

2. The atmospheric sample collection and storage device for carbon sink areas according to claim 1, characterized in that: The opening and closing gas collection mechanism also includes a connecting plate (15), which is fixed to the top of the upper base plate (4). A limiting seat (16) is fixedly connected to the front end of the connecting plate (15). One end of the rotating rod (6) is rotatably connected to the limiting seat (16). A torsion spring for resetting the rotating rod (6) is provided inside the limiting seat (16). The top end of the docking plate (8) passes through the connecting plate (15) and is located above the connecting plate (15). A slot (22) is opened inside the docking plate (8). A bottom frame (21) is slidably connected inside the docking plate (8). A protrusion (19) is fixedly connected to both sides of the top end of the bottom frame (21). A sliding groove (18) for sliding connection with the protrusion (19) is opened on one side of the docking plate (8). The rear end of the rotating rod (6) is fixedly connected to a pawl (12), and the top end of the lower base plate (5) is fixedly connected to a limiting shaft (20) for restricting the rotation of the pawl (12).

3. The atmospheric sample collection and storage device for carbon sink areas according to claim 1, characterized in that: The rear end of the guide tube (7) is spirally connected to a threaded sleeve (13), and a rubber pad is fitted on the surface of the threaded sleeve (13).

4. The atmospheric sample collection and storage device for carbon sink areas according to claim 1, characterized in that: The top of the upper base plate (4) is fixedly connected to a drive motor (14), and the output end of the drive motor (14) is fixedly connected to the transmission component (11).

5. The atmospheric sample collection and storage device for carbon sink areas according to claim 1, characterized in that: The bottom plate (5) is fixedly connected to a driven rod (10), and the top of the driven rod (10) slides through the top plate (4) and is positioned above the top plate (4).

6. The atmospheric sample collection and storage device for carbon sink areas according to claim 3, characterized in that: The top of the collection bag (23) is fixedly connected to a connecting pipe (24), and the inlet end of the connecting pipe (24) is sleeved on the outside of the threaded sleeve (13).

7. The atmospheric sample collection and storage device for carbon sink areas according to claim 1, characterized in that: The power assembly (2) is externally fixedly connected to a protective plate (3).

8. The atmospheric sample collection and storage device for carbon sink areas according to claim 1, characterized in that: A filter screen is fixedly connected inside the top of the guide tube (7).

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