Soil sampling machine based on unmanned aerial vehicle

Abstract

The invention discloses a soil sampling sample machine based on an unmanned aerial vehicle, and relates to the technical field of soil sampling, the soil sampling sample machine comprises the unmanned aerial vehicle and a sampling device, the sampling device comprises a supporting assembly and a collecting assembly, the supporting assembly comprises a fixing sleeve and a supporting rod, and the collecting assembly comprises a driving mechanism integrated drill bit. The unmanned aerial vehicle and the sampling device are fixed on the ground through the fixed sleeve and the supporting rod, so that the unmanned aerial vehicle and the sampling device are prevented from rotating or shaking when the soil is collected by the collecting assembly, and the soil can be stably and smoothly collected; the driving mechanism drives the integrated drill bit to rotate, so that the integrated drill bit drills into the ground, and the drill bit which drills into the ground can synchronously perform layered collection on soil, so that the original structure of the soil is maintained, and the soil detection result is ensured to be accurate and credible.

Description

Technical Field

[0001] This invention relates to the field of soil sampling technology, and more specifically to a soil sampling prototype based on an unmanned aerial vehicle (UAV). Background Technology

[0002] Soil sampling is a method for collecting soil samples, mainly used for monitoring arable land quality and investigating pollution status. Its core steps include sampling unit layout, mixed sample collection, and sample processing. Soil sampling generally uses manual or automated multi-point sampling, but it is very difficult to sample soil in areas that are hard to reach by manual or mechanical equipment.

[0003] For example, patent CN115060533A, published on September 16, 2022, entitled "A Remotely Controlled Soil Sampling Device Based on a Drone," includes a drone body. A mounting box is fixedly connected to the bottom of the drone body. A drill bit is installed inside the mounting box, and a mounting column is rotatably connected to the drill bit. A motor is fixedly connected to the mounting column, and the output shaft of the motor is fixedly connected to the rotation shaft of the drill bit. A sampling component is installed inside the mounting column for collecting soil. A linear drive component for driving the mounting column to move vertically is installed inside the mounting box. A bracket is rotatably connected to the mounting box, and several sample storage cylinders are fixedly connected to the bracket, arranged in a circular array about the drill bit. A first fixing plate is fixedly connected to the mounting box. By configuring a support frame, multiple sample storage cylinders, a guide plate, and a sampling component, the soil sample can be transported to a sample storage cylinder via the guide plate after each sampling. The first drive component, activated during a second soil sample collection, rotates the support frame and sample storage cylinders, automatically replacing the sample storage cylinder below the guide plate. This allows for multiple sample collections, significantly improving the speed and efficiency of soil collection. The sampling bucket, first cylinder, and sealing plate enable simple linear motion of the sampling bucket to collect and transport soil samples. The sealing plate ensures sufficient soil sample is collected and prevents soil from falling into the mounting groove, ensuring a simple and orderly process for soil collection and transport.

[0004] The shortcomings of existing technologies are that the structure of existing drone-based soil sampling devices is complex, which makes the drones heavy and thus expensive. In addition, existing drone-based soil sampling devices rarely or never collect soil in layers, making it difficult to detect the specific conditions of the soil during soil testing. Summary of the Invention

[0005] The purpose of this invention is to provide a soil sampling prototype based on an unmanned aerial vehicle (UAV) to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A soil sampling prototype based on a drone includes a drone, with a sampling device positioned directly beneath the drone. The sampling device rotates and drills into the ground after the drone lands to sample the soil. The sampling device includes:

[0008] A support assembly includes a fixed sleeve, and multiple support rods are evenly arranged around the outer side of the fixed sleeve. The support rods are used to support and fix the UAV to ensure the stability of the UAV and sampling device during soil sampling.

[0009] A data collection component is disposed on the lower side of the fixed sleeve. The data collection component includes a drive mechanism, and an integrated drill bit is disposed at the lower end of the drive mechanism. The drive mechanism can drive the integrated drill bit to move vertically up and down and rotate, so that the integrated drill bit can drill into the ground to perform stratified sampling of the soil.

[0010] As described above, the support rod is inclinedly arranged on the outside of the fixed sleeve, and the lower end of the support rod is provided with a metal spike.

[0011] As described above, the drive mechanism includes two guide rods, and a drive motor is slidably arranged between the two guide rods. The output end of the drive motor is provided with a threaded rod, the lower end of which is connected to the upper end of the integrated drill bit. The threaded rod is arranged in the fixed sleeve by means of threaded engagement.

[0012] As described above, the upper end of the integrated drill bit is a cylindrical connecting part, and the lower end of the cylindrical connecting part is provided with a tapered part by means of a threaded connection. The end of the tapered part away from the cylindrical connecting part is provided with an opening, and a limiting unit is provided between the cylindrical connecting part and the tapered part. The limiting unit is used to limit the relative rotation between the cylindrical connecting part and the tapered part. The upper end of the cylindrical connecting part is connected to the lower end of the threaded rod, and an accommodating space is provided inside the tapered part. The opening is connected to the accommodating space.

[0013] The aforementioned limiting unit includes a locking block, which is slidably disposed on the outside of the cylindrical connecting part. A locking spring is provided between the locking block and the cylindrical connecting part. A locking groove is provided on the upper side of the tapered part, and the locking block is slidably disposed in the locking groove.

[0014] As described above, the outer side of the conical portion is provided with at least two spiral grooves, and the lower end of the conical portion is provided with an annular toothed cutter, which is located at the opening.

[0015] As described above, a soil channel is provided on the inner side of the conical part, a flared mouth is provided at the upper end of the soil channel, and multiple barrier rings are uniformly arranged along the length of the soil channel.

[0016] In the above technical solution, the beneficial effects of the present invention are as follows:

[0017] 1. The present invention uses a fixed sleeve and a support rod to fix the drone and sampling device to the ground, preventing the drone and sampling device from rotating or shaking when the sampling components collect soil, thus ensuring that soil collection can be carried out stably and smoothly.

[0018] 2. The present invention uses a driving mechanism to drive the integrated drill bit to rotate, so that the integrated drill bit can drill into the ground. The drill bit can simultaneously collect soil in layers to maintain the original structure of the soil and ensure that the soil test results are accurate and reliable. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 A three-dimensional structural diagram of a soil sampling prototype based on an unmanned aerial vehicle (UAV) provided in an embodiment of the present invention;

[0021] Figure 2 A top view of a UAV-based soil sampling prototype provided in another embodiment of the present invention;

[0022] Figure 3 A front view of a UAV-based soil sampling prototype provided in another embodiment of the present invention;

[0023] Figure 4 Provided for another embodiment of the present invention Figure 2 Sectional view at point AA;

[0024] Figure 5 Provided for another embodiment of the present invention Figure 4 A magnified view of a portion of point M;

[0025] Figure 6 Provided for another embodiment of the present invention Figure 4 A magnified view of N points;

[0026] Figure 7 Provided for another embodiment of the present invention Figure 4 A magnified view of a portion at point K.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Unmanned Aerial Vehicle (UAV); 2. Sampling Device; 20. Support Component; 201. Fixing Sleeve; 202. Support Rod; 203. Metal Spike; 21. Collection Component; 210. Drive Mechanism; 2100. Guide Rod; 2101. Drive Motor; 2102. Threaded Rod; 211. Integrated Drill Bit; 2110. Cylindrical Connector; 2111. Conical Part; 2112. Opening; 2113. Accommodation Space; 2114. Spiral Groove; 2115. Ring Toothed Cutter; 2116. Soil Channel; 2117. Barrier Ring; 22. Limiting Unit; 220. Locking Block; 221. Locking Spring; 222. Locking Slot. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "side", "inner", "outer", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] like Figures 1-7 As shown in the figure, an embodiment of the present invention provides a soil sampling prototype based on a drone, including a drone 1, and a sampling device 2 disposed directly below the drone 1. The sampling device 2 rotates and drills into the ground after the drone 1 lands to sample the soil. The sampling device 2 includes:

[0032] Support assembly 20, the support assembly 20 includes a fixed sleeve 201, and a plurality of support rods 202 are evenly arranged on the outer side of the fixed sleeve 201 along its circumference, the support rods 202 being used to support the UAV 1;

[0033] The sampling component 21 is disposed on the lower side of the fixed sleeve 201. The sampling component 21 includes a driving mechanism 210. An integrated drill bit 211 is disposed at the lower end of the driving mechanism 210. The driving mechanism 210 can drive the integrated drill bit 211 to move vertically up and down and rotate so that the integrated drill bit 211 can drill into the soil for sampling.

[0034] In another embodiment of the present invention, the support rod 202 is obliquely arranged outside the fixed sleeve 201, and a metal spike 203 is provided at the lower end of the support rod 202;

[0035] The specific implementation method is as follows: When the soil sampler is sampling, the drone 1 is first carried by the soil sampler to fly directly above the sampling position and 10-50 cm above the ground. At this time, the drone 1 is landed. The weight of the drone 1 and the soil sampler is driven by the support rod 202 to drive the metal spike 203 to insert into the soil. This passively anchors the drone 1 and the soil sampler through the ground via the metal spike 203. The metal spike 203 offsets the torque of the integrated drill bit 211 when it is driven by the drive component to rotate and sample, ensuring that the integrated drill bit 211 can smoothly drill into the ground at the sampling position for sampling.

[0036] In another embodiment of the present invention, the driving mechanism 210 includes two guide rods 2100, and a drive motor 2101 is slidably disposed between the two guide rods 2100. The output end of the drive motor 2101 is provided with a threaded rod 2102, the lower end of the threaded rod 2102 is connected to the upper end of the integrated drill bit 211, and the threaded rod 2102 is disposed in the fixed sleeve 201 by means of threaded engagement.

[0037] The specific implementation method is as follows: When the soil sampler is sampling, the drive motor 2101 rotates, causing the output end of the drive motor 2101 to drive the threaded rod 2102 to rotate. This causes the threaded rod 2102 to drive the integrated drill bit 211 to move along the fixed sleeve 201 in a direction away from the UAV 1. This allows the threaded rod 2102 to drive the integrated drill bit 211 to descend vertically and drill into the ground at the sampling location, thereby enabling the integrated drill bit 211 to sample the soil. When the drive motor 2101 drives the threaded rod 2102 to move, the drive motor 2101 moves synchronously with the threaded rod 2102. At the same time, the guide rod 2100 guides and limits the drive motor 2101 to avoid the situation where the drive motor 2101 cannot drive the threaded rod 2102 to move along the fixed sleeve 201 due to the rotation of the drive motor 2101 as a whole.

[0038] In another embodiment of the present invention, the upper end of the integrated drill bit 211 is a cylindrical connecting part 2110, and the lower end of the cylindrical connecting part 2110 is provided with a tapered part 2111 by means of a threaded connection. The tapered part 2111 is provided with an opening 2112 at the end away from the cylindrical connecting part 2110. A limiting unit 22 is provided between the cylindrical connecting part 2110 and the tapered part 2111. The limiting unit 22 is used to limit the relative rotation between the cylindrical connecting part 2110 and the tapered part 2111. The upper end of the cylindrical connecting part 2110 is connected to the lower end of the threaded rod 2102. An accommodating space 2113 is provided inside the tapered part 2111, and the opening 2112 is connected to the accommodating space 2113.

[0039] The specific implementation method is as follows: Before sampling, the cylindrical connecting part 2110 and the conical part 2111 are connected as a whole by threads. At the same time, the cylindrical connecting part 2110 and the conical part 2111 are locked and fixed by the limiting unit 22 to avoid relative rotation between the two during the sampling process, which would make sampling difficult. After the cylindrical connecting part 2110 and the conical part 2111 are connected and fixed, when the integrated drill bit 2111 drills into the ground for sampling, the drive motor 2101 drives the cylindrical connecting part 2110 and the conical part 2111 to rotate synchronously through the threaded rod 2102. This causes the threaded rod 2102 to drive the conical part 2111 to drill into the ground through the cylindrical connecting part 2110, so that the soil enters the receiving space 2113 of the conical part 2111 through the opening 2112, so that the sampled soil can enter the receiving space 2113 for storage.

[0040] In another embodiment of the present invention, the limiting unit 22 includes a locking block 220, which is slidably disposed on the outside of the cylindrical connecting part 2110. A locking spring 221 is provided between the locking block 220 and the cylindrical connecting part 2110. A slot 222 is provided on the upper side of the tapered part 2111, and the locking block 220 is slidably disposed in the slot 222.

[0041] The specific implementation method is as follows: When the cylindrical connecting part 2110 and the conical part 2111 are connected by threads, the locking block 220 is pressed, causing the locking block 220 to squeeze the clamping spring 221 and move it into the cylindrical connecting part 2110. At the same time, when the cylindrical connecting part 2110 and the conical part 2111 are tightened, the slot 222 is aligned with the locking block 220. At this time, the locking block 220 is released, causing the clamping spring 221 to squeeze the locking block 220, causing it to move outward along the cylindrical connecting part 2110 and lock into the slot 222 of the conical part 2111. Thus, the locking block 220 and the slot 222 lock and fix the cylindrical connecting part 2110 and the conical part 2111, preventing integrated drilling. When the head 211 drills into the ground to collect samples, relative sliding occurs between the cylindrical connecting part 2110 and the conical part 2111. After soil collection, the locking block 220 is manually pressed, causing the locking block 220 to squeeze the locking spring 221 and move into the cylindrical connecting part 2110, thereby causing the locking block 220 to disengage from the locking groove 222. At this time, the conical part 2111 is rotated in the opposite direction, causing the conical part 2111 to separate from the cylindrical connecting part 2110. After the two are separated, the soil collected in the receiving space 2113 is pressed to maintain the layered structure of the collected soil. Then, the conical part 2111 is flipped over and its outer side is tapped to remove the soil stored in the receiving space 2113.

[0042] In another embodiment of the present invention, at least two spiral grooves 2114 are provided on the outer side of the tapered portion 2111, and an annular toothed cutter 2115 is provided at the lower end of the tapered portion 2111, with the annular toothed cutter 2115 located at the opening 2112.

[0043] The specific implementation is as follows: When the drive motor 2101 drives the conical part 2111 to descend and drill into the ground through the threaded rod 2102 and the cylindrical connection part 2110, the conical part 2111 can remove chips from the ground through the spiral groove 2114 provided on its outer side, so that the ground can make room for the conical part 2111 to drill into the ground after the soil is discharged. In addition, the annular toothed cutter 2115 is provided with a serrated cutting edge at one end away from the conical part 2111. The annular toothed cutter 2115 rotates and cuts the ground soil through the serrated cutting edge, so that the annular toothed cutter 2115 can more easily rotate and cut the ground soil. The soil sampled after being cut by the annular toothed cutter 2115 enters the receiving space 2113 of the conical part 2111 through the opening 2112 of the conical part 2111 for storage.

[0044] In another embodiment of the present invention, a soil channel 2116 is provided on the inner side of the conical part 2111, a flared mouth is provided at the upper end of the soil channel 2116, and a plurality of barrier rings 2117 are uniformly arranged in the soil channel 2116 along its length direction.

[0045] The specific implementation method is as follows: A cylindrical soil channel 2116 is provided at the opening 2112, and multiple barrier rings 2117 are evenly arranged along the length of the soil channel 2116. Thus, when the drive motor 2101 drives the conical part 2111 to rotate and drill into the ground through the threaded rod 2102 and the cylindrical connection part 2110, the sampled soil cut and separated by the annular toothed cutter 2115 enters the soil channel 2116 through the opening 2112. The conical part 2111 continues to rotate and drill into the ground, and the subsequently entering sampled soil compresses the previously entering sampled soil. The sampled soil gradually moves upward into the soil channel 2116. As the sampled soil moves upward along the soil channel 2116, it is supported and blocked by multiple barrier rings 2117 provided in the soil channel 2116, so that the sampled soil can move smoothly upward along the soil channel 2116. After the cone-shaped part 2111 penetrates deep into the ground, the sampled soil entering the soil channel 2116 exceeds the height of the soil channel 2116, so that the sampled soil falls into the receiving space 2113 for storage after exceeding the top of the soil channel 2116.

[0046] Specifically, during soil collection, the soil separated by the annular toothed cutter 2115 enters the soil channel 2116 through the opening 2112. The upper end of the sampled soil exceeds the upper end of the soil channel 2116 and falls to the bottom of the receiving space 2113 for storage. When the soil enters the receiving space 2113, the soil closest to the ground first enters the receiving space 2113 through the opening 2112 for storage. The drive motor 2101 drives the conical part 2111 to continue rotating and drilling into the ground through the threaded rod 2102 and the cylindrical connection part 2110, so that the annular toothed cutter 2115 continuously cuts and separates the soil. In this way, the soil far from the ground gradually enters the soil channel 2116 through the opening 2112 and falls into the receiving space 2113 for storage. The soil that enters the receiving space 2113 through the opening 2112 and the soil channel 2116 afterward will fall on top of the soil that entered the receiving space 2113 first, so that the soil is sampled and collected in sequence and layered.

[0047] Working Principle: Before sampling, the cylindrical connecting part 2110 and the conical part 2111 are first connected as a whole by threads. At the same time, the cylindrical connecting part 2110 and the conical part 2111 are locked and fixed by the limiting unit 22 to prevent relative rotation between the two during the sampling process, which would make sampling difficult. After the cylindrical connecting part 2110 and the conical part 2111 are connected and fixed, the drone 1 drives the soil sampler to fly directly above the sampling position and 10-50 cm above the ground. At this time, the drone 1 lands, and the weight of the drone 1 and the soil sampler drives the metal spike 203 to insert into the soil through the support rod 202. This passively anchors the drone 1 and the soil sampler through the ground via the metal spike 203, so that the metal spike 203 offsets the torque of the integrated drill bit 211 driven by the drive component to rotate and sample. This ensures that the integrated drill bit 211 can smoothly drill into the ground at the sampling location for sampling. The rotation of the drive motor 2101 causes its output end to drive the threaded rod 2102 to rotate, thereby causing the threaded rod 2102 to drive the integrated drill bit 211 to move along the fixed sleeve 201 away from the UAV 1. This allows the threaded rod 2102 to drive the integrated drill bit 211 vertically downwards to drill into the ground at the sampling location, enabling the integrated drill bit 211 to sample the soil. Furthermore, when the drive motor 2101 drives the threaded rod 2102, the drive motor 2101 moves synchronously with the threaded rod 2102. Simultaneously, the guide rod 2100 guides and limits the drive motor 2101, preventing the drive motor 2101 from rotating along with the threaded rod 2102 and making it difficult for the drive motor 2101 to drive the threaded rod 2102 to move along the fixed sleeve 201.

[0048] When the integrated drill bit 211 drills into the ground for sampling, the drive motor 2101 drives the cylindrical connecting part 2110 and the conical part 2111 to rotate synchronously through the threaded rod 2102. This causes the threaded rod 2102 to drive the conical part 2111 to drill into the ground through the cylindrical connecting part 2110, allowing soil to enter the receiving space 2113 of the conical part 2111 through the opening 2112, so that the sampled soil can be stored in the receiving space 2113; the cylindrical connecting part 2110 and the conical part 2111... When the connection between 111 and 211 is made by thread, pressing the locking block 220 causes it to compress the locking spring 221 and move it into the cylindrical connecting part 2110. Simultaneously, when the cylindrical connecting part 2110 and the conical part 2111 are tightened, the locking groove 222 aligns with the locking block 220. At this point, releasing the locking block 220 causes the compression spring to compress the locking block 220, causing it to move outward along the cylindrical connecting part 2110 and engage with the locking groove 222 of the conical part 2111. This ensures that the locking block 220 and the locking groove 222 are aligned. The cylindrical connecting part 2110 and the conical part 2111 are locked and fixed to prevent relative sliding between them when the integrated drill bit 211 drills into the ground for sampling. When the drive motor 2101 drives the conical part 2111 to descend and drill into the ground through the threaded rod 2102 and the cylindrical connecting part 2110, the conical part 2111 can remove chips from the ground drilled by the conical part 2111 through the spiral groove 2114 on its outer side, so that the ground can be discharged. The space is then made so that the conical part 2111 can drill into the ground. In addition, the end of the annular toothed cutter 2115 away from the conical part 2111 is provided with a serrated cutting edge. The annular toothed cutter 2115 rotates and cuts the ground soil through the serrated cutting edge. In this way, the annular toothed cutter 2115 can more easily rotate and cut the ground soil. The soil sampled after being cut by the annular toothed cutter 2115 enters the receiving space 2113 of the conical part 2111 through the opening 2112 of the conical part 2111 for storage.A cylindrical soil channel 2116 is provided at the opening 2112, and multiple barrier rings 2117 are evenly arranged along its length inside the soil channel 2116. Thus, when the drive motor 2101 drives the conical part 2111 to rotate and drill into the ground via the threaded rod 2102 and the cylindrical connection 2110, the sampled soil cut and separated by the annular toothed cutter 2115 enters the soil channel 2116 through the opening 2112. The conical part 2111 continues to rotate and drill into the ground, and the subsequently entering sampled soil compresses the previously entering sampled soil, thus ensuring proper sampling. As the soil enters the soil channel 2116, it gradually moves upward. During the upward movement of the sampled soil along the soil channel 2116, multiple barrier rings 2117 installed in the soil channel 2116 support and block the sampled soil, so that the sampled soil can move upward smoothly along the soil channel 2116. After the cone-shaped part 2111 penetrates deep into the ground, the sampled soil entering the soil channel 2116 exceeds the height of the soil channel 2116, so that the sampled soil falls into the receiving space 2113 for storage after exceeding the top of the soil channel 2116.

[0049] Specifically, during soil collection, the soil separated by the annular toothed cutter 2115 enters the soil channel 2116 through the opening 2112. The upper end of the sampled soil exceeds the upper end of the soil channel 2116 and falls to the bottom of the receiving space 2113 for storage. When the soil enters the receiving space 2113, the soil closest to the ground first enters the receiving space 2113 through the opening 2112 for storage. The drive motor 2101 drives the conical part 2111 to continue rotating and drilling into the ground through the threaded rod 2102 and the cylindrical connection part 2110, so that the annular toothed cutter 2115 continuously cuts and separates the soil. In this way, the soil far from the ground gradually enters the soil channel 2116 through the opening 2112 and falls into the receiving space 2113 for storage. The soil that enters the receiving space 2113 through the opening 2112 and the soil channel 2116 afterward will fall on top of the soil that entered the receiving space 2113 first, so that the soil is sampled and collected in sequence and layered.

[0050] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A soil sampling prototype based on an unmanned aerial vehicle (UAV), comprising an UAV (1), wherein a sampling device (2) is disposed directly below the UAV (1), the sampling device (2) rotating and drilling to sample the soil after the UAV (1) lands, characterized in that, The sampling device (2) includes: The support assembly (20) includes a fixed sleeve (201), and a plurality of support rods (202) are evenly arranged on the outer side of the fixed sleeve (201) along its circumference. The support rods (202) are used to support the UAV (1). A sampling component (21) is disposed on the lower side of the fixed sleeve (201). The sampling component (21) includes a driving mechanism (210). An integrated drill bit (211) is disposed at the lower end of the driving mechanism (210). The driving mechanism (210) can drive the integrated drill bit (211) to move vertically up and down and rotate so that the integrated drill bit (211) can drill into the soil for sampling.

2. The soil sampling prototype based on an unmanned aerial vehicle (UAV) according to claim 1, characterized in that, The support rod (202) is obliquely arranged on the outside of the fixed sleeve (201), and a metal spike (203) is provided at the lower end of the support rod (202).

3. A soil sampling prototype based on an unmanned aerial vehicle (UAV) according to claim 1, characterized in that, The drive mechanism (210) includes two guide rods (2100), and a drive motor (2101) is slidably arranged between the two guide rods (2100). The output end of the drive motor (2101) is provided with a threaded rod (2102). The lower end of the threaded rod (2102) is connected to the upper end of the integrated drill bit (211). The threaded rod (2102) is arranged in the fixed sleeve (201) by means of threaded engagement.

4. A soil sampling prototype based on an unmanned aerial vehicle (UAV) according to claim 3, characterized in that, The upper end of the integrated drill bit (211) is a cylindrical connecting part (2110), and the lower end of the cylindrical connecting part (2110) is provided with a tapered part (2111) by means of a threaded connection. The tapered part (2111) is provided with an opening (2112) at the end away from the cylindrical connecting part (2110). A limiting unit (22) is provided between the cylindrical connecting part (2110) and the tapered part (2111). The limiting unit (22) is used to limit the relative rotation between the cylindrical connecting part (2110) and the tapered part (2111). The upper end of the cylindrical connecting part (2110) is connected to the lower end of the threaded rod (2102). An accommodating space (2113) is provided inside the tapered part (2111). The opening (2112) is connected to the accommodating space (2113).

5. A soil sampling prototype based on an unmanned aerial vehicle (UAV) according to claim 4, characterized in that, The limiting unit (22) includes a locking block (220), which is slidably disposed on the outside of the cylindrical connecting part (2110). A locking spring (221) is provided between the locking block (220) and the cylindrical connecting part (2110). A slot (222) is provided on the upper side of the tapered part (2111), and the locking block (220) is slidably disposed in the slot (222).

6. A soil sampling prototype based on an unmanned aerial vehicle (UAV) according to claim 4, characterized in that, The outer side of the conical part (2111) is provided with at least two spiral grooves (2114), and the lower end of the conical part (2111) is provided with an annular toothed cutter (2115), which is located at the opening (2112).

7. A soil sampling prototype based on an unmanned aerial vehicle (UAV) according to claim 4, characterized in that, A soil channel (2116) is provided on the inner side of the conical part (2111), and a flared mouth is provided at the upper end of the soil channel (2116). A plurality of barrier rings (2117) are uniformly arranged along the length of the soil channel (2116).

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