Portable detection device for protective soil collection and use method of portable detection device

Abstract

The invention relates to the technical field of soil collection and discloses a protective soil collection portable detection device which comprises a supporting frame, multiple sets of walking wheels are oppositely installed at the bottom ends of the two sides of the supporting frame, threaded cylinders are arranged at the top ends of the two sides of the supporting frame, ground piles are installed in the threaded cylinders in a threaded penetrating mode, and a connecting cylinder is welded to the middle end of the top of the supporting frame; a plurality of groups of rotating teeth are annularly arranged at the bottom end of the sampling rod, a sampling groove is formed in the bottom end of the sampling rod in a manner of extending from the top end to the inside, a supporting plate is welded in one side of the supporting frame, a rack is mounted on one side of the top end through a bolt, and a micro driving motor is mounted at the top end of the rack; the middle end of the rotating shaft is connected with a driving wheel, the side edge of the driving wheel is meshed with a connecting wheel, the bottom end of the connecting wheel is connected with a connecting column, and a detection rod is arranged in the sampling groove. The device can realize accurate sampling.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of soil collection, in particular to a portable detection device for protective soil collection and a use method thereof. BACKGROUND

[0002] Soil collection refers to the process of obtaining representative soil samples according to scientific norms, and is a basic link for soil physical and chemical property analysis, environmental assessment and agricultural research. During collection, appropriate methods need to be selected according to the target, the sample needs to be sealed, labeled and transported in a cold storage and dried in time. The whole process needs to ensure the spatial representativeness and chemical stability of the sample, and provide a reliable basis for subsequent laboratory analysis.

[0003] Through retrieval, it is found that the soil collector disclosed in Chinese Patent No. CN217211519U can automatically punch and sample as long as it is placed in a designated position, greatly improving the sampling efficiency. However, the device forms a sample collection structure through a countersunk bolt and a collection mechanism, which is prone to wear and tear of the countersunk bolt or the collection mechanism during long-term use, thereby causing the equipment to be easily damaged. Meanwhile, the device cannot accurately collect soil at a deep place during sampling. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the application provides a portable detection device for protective soil collection and a use method thereof, which realizes efficient, accurate and safe field operation through innovative structural design, the split collection structure can easily complete accurate sampling at different depths, and can also protect the detection rod, so that the soil smoothly enters the sampling groove, significantly improving the sampling efficiency. The overall lightweight portable framework takes into account the advantages of flexible operation and mechanical stability, and solves the above technical problems.

[0006] (II) Technical solutions

[0007] In order to achieve the above object, the application provides the following technical scheme: a portable detection device for soil collection in a protective mode, comprising a support frame, a plurality of groups of walking wheels are arranged at the bottom of the two sides of the support frame, threaded barrels are arranged at the top of the two sides of the support frame, ground stakes are arranged in the threaded barrels, a connecting barrel is welded at the middle of the top of the support frame, a sampling rod is rotatably arranged in the connecting barrel, a plurality of groups of gear teeth are arranged in the annular arrangement at the bottom of the sampling rod, a sampling groove is arranged in the sampling rod extending from the top to the inside, a supporting plate is welded at the inside of one side of the support frame, a rack is arranged at the top of one side of the supporting plate through bolts, a miniature driving motor is arranged at the top of the rack, the shaft of the miniature driving motor is rotatably connected to the top of the support frame through a rotating shaft, a driving wheel is connected to the middle of the rotating shaft, an engaging wheel is engaged with the side of the driving wheel, an engaging column is connected to the bottom of the engaging wheel, and a detection rod is arranged in the sampling groove.

[0008] Preferably, as the technical scheme of the application, the ground stakes are arranged in two groups, and the bottom of the ground stake is a sharp downward tapered cone.

[0009] Preferably, as the technical scheme of the application, the upper part of the inside of the plurality of groups of gear teeth is fixedly connected to the outside of the sampling rod, and the lower part of the inside of the plurality of groups of gear teeth is in a suspended state relative to the outside of the sampling rod.

[0010] Preferably, as the technical scheme of the application, the outside of the middle of the rotating shaft is fixedly connected to the middle of the driving wheel through welding.

[0011] Preferably, as the technical scheme of the application, the engaging column is rotatably connected to one side of the top of the supporting plate through the top of the support frame, the outer circumferential surface of the engaging column is threaded, and the threaded end of the engaging column is threadedly connected to the outside of the sampling rod.

[0012] Preferably, as the technical scheme of the application, the detection rod comprises an upper connecting rod and a lower connecting rod, the bottom of the upper connecting rod is threadedly rotatably connected to the inner wall of the lower connecting rod, the edge of the top of the lower connecting rod is provided with an anti-disengagement structure, a sampling box is welded at the top of the lower connecting rod, and two groups of clamping grooves are arranged at the edge of the inner wall of the sampling groove.

[0013] Preferably, as the technical scheme of the application, two groups of clamping plates are arranged at the outside of the lower connecting rod, and the two groups of clamping plates are respectively slidably connected to the inner walls of the two groups of clamping grooves.

[0014] The application also provides a use method of the portable detection device for soil collection in a protective mode, which is performed according to the following steps: S1, the device is moved to a target sampling area through the walking wheels, after reaching the area, the top of the two groups of ground stakes is rotated, the ground stakes are threadedly rotated in the threaded barrels and vertically downward, until the sharp tapered bottom of the ground stake is driven into the ground; S2. After fixing, start the micro drive motor on the frame. The motor shaft rotates, which drives the rotating shaft to rotate. The rotating shaft rotates through the welded drive wheel. The drive wheel meshes with the connecting wheel, which in turn drives the connecting wheel and the connecting column at the bottom to rotate synchronously. The connecting column maintains stable rotation under the support of the support plate. Its threaded end is connected to the outer thread of the sampling rod, which causes the sampling rod to rotate vertically downward with the thread direction of the connecting column. At the same time, it drives the rotating teeth arranged in a ring at the bottom to rotate, drilling holes in the ground soil. S3. Since the lower part of the inner side of the rotating tooth is suspended from the outer side of the sampling rod, when the sampling rod reaches the predetermined depth, its bottom end is suspended from the soil, and the soil can directly enter the sampling groove inside the sampling rod through the suspended position. S4. After the sampling rod reaches the preset depth, place the detection rod inside the sampling trough. The soil falls directly into the sampling box. The upper connecting rod and the lower connecting rod of the detection rod are threaded together. Rotate the upper connecting rod according to the sampling depth to make it move threadedly on the inner wall of the lower connecting rod. S5. The slot on the inner wall of the sampling groove is slidably connected to the plate on the outside of the lower connecting rod, which limits the lower connecting rod and prevents it from rotating synchronously with the upper connecting rod, ensuring that the lower connecting rod can move up and down normally. The anti-detachment structure at the top of the lower connecting rod can prevent the upper connecting rod from detaching from the lower connecting rod. S6. After sampling is completed, reverse the operation of the micro drive motor to move the sampling rod vertically upward and detach it from the soil. Then turn off the motor and move the entire device to the next sampling point or storage location.

[0015] Compared with the prior art, the present invention provides a portable detection device for protective soil sampling and its method of use, which has the following beneficial effects: 1. This invention ensures the stability and safety of the sampling process through multiple design features. The ground stake adopts a cone-shaped structure with a downward-pointing tip, which can rotate inside the threaded cylinder and be driven into the ground to effectively fix the device and prevent it from collapsing due to vibration during sampling. This provides basic protection for operators and equipment. The lower part of the inner side of the rotating teeth is suspended from the outer side of the sampling rod, which not only ensures drilling efficiency but also allows soil to smoothly enter the bottom of the sampling rod, reducing equipment wear caused by excessive contact between the sampling rod and the soil. At the same time, it avoids component wear that may be caused by repeated operations due to poor sampling. The anti-detachment structure of the detection rod can prevent the upper connecting rod from separating from the lower connecting rod, ensuring the integrity of the detection component during sampling and further improving the reliability of the device. 2. This invention fully considers the convenience of movement and operation. Multiple sets of wheels installed at the bottom of both sides of the support frame allow the device to be easily moved to different sampling areas, reducing the manpower consumption for handling. The micro drive motor drives the sampling rod to rotate through the drive wheel, connecting wheel, and connecting column, realizing mechanized drilling of the soil without the need for manual drilling, which greatly improves sampling efficiency. The upper and lower connecting rods of the detection rod are connected by threads, and the length can be flexibly adjusted according to the sampling depth. With the limiting design of the slot and the plate, sampling operations at different depths are simple and easy. The compactness of the overall structure and the coordinated work of each component also make the device more convenient and labor-saving during transportation and use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a partially enlarged schematic diagram of the front view of the structure of the present invention; Figure 4 This is a three-dimensional structural diagram of the detection rod in this invention; Figure 5 This is a schematic diagram of the internal structure of the sampling rod in this invention; Figure 6 This is a partial cross-sectional schematic diagram of the detection rod in this invention.

[0017] The components include: 1. Support frame; 2. Walking wheel; 3. Threaded cylinder; 4. Ground pile; 5. Connecting cylinder; 6. Sampling rod; 7. Rotating tooth; 8. Sampling slot; 9. Support plate; 10. Frame; 11. Miniature drive motor; 12. Rotating shaft; 13. Drive wheel; 14. Connecting wheel; 15. Connecting column; 16. Detection rod; 161. Upper connecting rod; 162. Lower connecting rod; 163. Anti-detachment structure; 164. Sampling box; 81. Slot; 82. Card plate. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-6A portable soil sampling and testing device with protective features includes a support frame 1. Multiple sets of wheels 2 are mounted opposite each other at the bottom of both sides of the support frame 1, and threaded cylinders 3 are provided at the top of both sides. A ground stake 4 is threaded through the inside of the threaded cylinder 3. A connecting cylinder 5 is welded to the middle of the top of the support frame 1. A sampling rod 6 is rotatably mounted inside the connecting cylinder 5. Multiple sets of rotating teeth 7 are arranged in a ring at the bottom of the sampling rod 6, and a sampling groove 8 extends inward from the top. A support plate 9 is welded inside one side of the support frame 1, and a frame 10 is bolted to one side of the top. A micro drive motor 11 is mounted at the top of the frame 10. The shaft of the micro drive motor 11 passes through the top of the frame 10 via a rotating shaft 12 and is rotatably connected to the top of the support frame 1. A drive wheel 13 is connected to the middle of the rotating shaft 12, and a connecting wheel 14 meshes with the side of the drive wheel 13. A connecting post 15 is connected to the bottom of the connecting wheel 14. A detection rod 16 is provided inside the sampling groove 8.

[0020] Specifically, two sets of ground stakes 4 are arranged opposite each other, and the bottom end is a cone with a pointed tip pointing downwards. The advantage is that when in use, the device can be moved to the use area by the walking wheels 2, and the top of the ground stake 4 can be rotated so that the ground stake 4 rotates vertically downwards inside the threaded cylinder 3 under the action of force until the pointed tip of the ground stake 4 is driven into the ground, fixing the device and preventing it from collapsing during use, thus increasing the stability of the device.

[0021] Specifically, the upper part of the inner side of the multiple sets of rotating teeth 7 is welded to the outer side of the sampling rod 6 to form a fixed structure, and the lower part of the inner side is suspended from the outer side of the sampling rod 6. The advantage is that when the sampling rod 6 is sampling, it drills holes in the ground soil through the rotating teeth 7. The lower part of the rotating teeth 7 is suspended from the outer side of the sampling rod 6, which allows the bottom end of the sampling rod 6 to be suspended from the soil when the sampling rod 6 reaches the predetermined position. At this time, the soil can directly enter the bottom end of the sampling rod 6 through the suspended position, which facilitates sampling and avoids the problem of the bottom end of the sampling rod 6 sticking to the soil, causing sampling inconvenience.

[0022] Specifically, the outer side of the middle end of the rotating shaft 12 is fixed to the middle end of the drive wheel 13 by welding. The advantage is that the micro drive motor 11 adopts the J-SZ(ZYT)-PX series DC geared motor. After the device is fixed, the micro drive motor 11 is started. The shaft of the micro drive motor 11 starts to rotate, which drives the rotating shaft 12 to rotate. The rotating shaft 12 drives the drive wheel 13 to rotate. The drive wheel 13 drives the connecting wheel 14 that meshes with it to rotate. Power is provided to the connecting wheel 14 through the micro drive motor 11, the rotating shaft 12, and the drive wheel 13.

[0023] Specifically, the connecting column 15 rotates through the top of the support frame 1 and is rotatably connected to one side of the top of the support plate 9. Its outer circumference is threaded. The threaded end of the connecting column 15 is connected to the outer thread of the sampling rod 6. The advantage is that when the connecting wheel 14 rotates, it drives the connecting column 15 to rotate synchronously. The support plate 9 supports the bottom of the connecting column 15, maintaining the stability of the connecting column 15 during rotation. At the same time, the threaded end of the connecting column 15 drives the sampling rod 6 to rotate in the same direction. Since the threaded end of the connecting column 15 is connected to the outer thread of the sampling rod 6, the sampling rod 6 rotates vertically downward with the thread direction of the connecting column 15, and drives the rotating tooth 7 to rotate vertically downward, realizing the effect of drilling the soil, improving the convenience of sampling, and being suitable for sampling work at different depths.

[0024] Specifically, the detection rod 16 includes an upper connecting rod 161 and a lower connecting rod 162. The bottom end of the upper connecting rod 161 is threadedly connected to the inner wall of the lower connecting rod 162. The edge of the top end of the lower connecting rod 162 is provided with an anti-detachment structure 163, and a sampling box 164 is welded to the top end. The inner wall of the sampling groove 8 is provided with two sets of slots 81. The advantage is that when the sampling rod 6 reaches the preset depth, the detection rod 16 is placed inside the sampling groove 8. The upper connecting rod 161 can be rotated according to the sampling depth, so that the upper connecting rod 161 moves threadedly on the inner wall of the lower connecting rod 162, thereby adjusting the distance between the upper connecting rod 161 and the lower connecting rod 162, so as to achieve the effect of sampling according to different depths. The anti-detachment structure 163 blocks the connection between the upper connecting rod 161 and the lower connecting rod 162 to prevent the upper connecting rod 161 and the lower connecting rod 162 from detaching.

[0025] Specifically, two sets of retaining plates 82 are welded to the outer side of the lower connecting rod 162. The two sets of retaining plates 82 are slidably connected to the inner walls of the two sets of retaining grooves 81. The advantage is that when the upper connecting rod 161 is rotated, the retaining grooves 81 and retaining plates 82 limit the lower connecting rod 162, preventing the lower connecting rod 162 from rotating synchronously with the upper connecting rod 161, thus preventing it from moving up and down.

[0026] This invention provides a method for using a portable detection device for protective soil sampling, comprising the following steps: S1. Move the device to the target sampling area using the walking wheels 2. After arriving at the area, rotate the top of the two sets of ground stakes 4 so that the ground stakes 4 rotate inside the threaded cylinder 3 and are vertically downward until their pointed conical bottom end is driven into the ground. S2. After fixing, start the micro drive motor 11 on the frame 10. The motor shaft rotates and drives the rotating shaft 12 to rotate. The rotating shaft 12 rotates through the welded and fixed drive wheel 13. The drive wheel 13 meshes with the connecting wheel 14, thereby driving the connecting wheel 14 and the connecting column 15 at the bottom to rotate synchronously. The connecting column 15 maintains stable rotation under the support of the support plate 9. Its threaded end is connected to the outer thread of the sampling rod 6, causing the sampling rod 6 to rotate vertically downward with the thread direction of the connecting column 15. At the same time, it drives the rotating teeth 7 arranged in a ring at the bottom to rotate, drilling holes in the ground soil. S3. Since the lower inner part of the rotating tooth 7 is suspended from the outer side of the sampling rod 6, when the sampling rod 6 reaches the predetermined depth, its bottom end is suspended from the soil, and the soil can directly enter the sampling groove 8 inside the sampling rod 6 through the suspended position. S4. After the sampling rod 6 reaches the preset depth, the detection rod 16 is placed inside the sampling trough 8, and the soil falls directly into the sampling box 164. The upper connecting rod 161 and the lower connecting rod 162 of the detection rod 16 are threadedly connected. The upper connecting rod 161 is rotated according to the sampling depth, so that it moves threadedly on the inner wall of the lower connecting rod 162. S5. The slot 81 on the inner wall of the sampling groove 8 is slidably connected to the card plate 82 on the outer side of the lower connecting rod 162, which limits the lower connecting rod 162 and prevents it from rotating synchronously with the upper connecting rod 161, ensuring that the lower connecting rod 162 can move up and down normally. The anti-detachment structure 163 at the top of the lower connecting rod 162 can prevent the upper connecting rod 161 from detaching from the lower connecting rod 162. S6. After sampling is completed, reverse the operation of the micro drive motor 11 to move the sampling rod 6 vertically upward and detach it from the soil. Then turn off the motor and move the entire device to the next sampling point or storage location.

[0027] When in use, the device is first moved to the target sampling area by the walking wheels 2. After arriving at the area, the top of the two sets of ground stakes 4 are rotated so that the ground stakes 4 rotate inside the threaded cylinder 3 and are vertically downward until their pointed conical bottom ends are driven into the ground, thus fixing the device and preventing it from collapsing during use, thereby enhancing the device's stability.

[0028] After fixing, start the micro drive motor 11 on the frame 10. The motor shaft rotates, driving the rotating shaft 12 to rotate. The rotating shaft 12 rotates through the welded drive wheel 13. The drive wheel 13 meshes with the connecting wheel 14, thereby driving the connecting wheel 14 and the connecting column 15 at the bottom to rotate synchronously. The connecting column 15 maintains stable rotation under the support of the support plate 9. Its threaded end is connected to the outer thread of the sampling rod 6, causing the sampling rod 6 to rotate vertically downward with the thread direction of the connecting column 15. At the same time, it drives the rotating teeth 7 arranged in a ring at the bottom to rotate, drilling holes in the ground soil.

[0029] Since the lower inner part of the rotating tooth 7 is suspended from the outer side of the sampling rod 6, when the sampling rod 6 reaches the predetermined depth, its bottom end is suspended from the soil. The soil can directly enter the sampling groove 8 inside the sampling rod 6 through the suspended position, realizing convenient sampling and avoiding the inconvenience of sampling caused by the bottom end of the sampling rod 6 sticking to the soil.

[0030] After the sampling rod 6 reaches the preset depth, the detection rod 16 is placed inside the sampling trough 8, and the soil falls directly into the sampling box 164. The upper connecting rod 161 and the lower connecting rod 162 of the detection rod 16 are connected by threads. The upper connecting rod 161 can be rotated according to the sampling depth, so that it moves threadedly on the inner wall of the lower connecting rod 162, and the distance between the two can be adjusted to meet the sampling needs of different depths. At the same time, the slot 81 on the inner wall of the sampling trough 8 is slidably connected to the card plate 82 on the outer side of the lower connecting rod 162, which limits the lower connecting rod 162 and prevents it from rotating synchronously with the upper connecting rod 161, ensuring that the lower connecting rod 162 can move up and down normally. The anti-detachment structure 163 at the top of the lower connecting rod 162 can prevent the upper connecting rod 161 from separating from the lower connecting rod 162.

[0031] After sampling is completed, the micro drive motor 11 is reversed to move the sampling rod 6 vertically upward and detach it from the soil. Then the motor is turned off and the entire device is moved to the next sampling point or storage location.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable soil sampling and testing device with protective features, comprising a support frame (1), characterized in that: Multiple sets of traveling wheels (2) are installed opposite each other at the bottom ends of both sides of the support frame (1), and threaded cylinders (3) are provided at the top ends of both sides. Ground stakes (4) are installed through the threads inside the threaded cylinders (3). A connecting cylinder (5) is welded to the middle of the top of the support frame (1). A sampling rod (6) is rotatably installed inside the connecting cylinder (5). Multiple sets of rotating teeth (7) are arranged in a ring at the bottom end of the sampling rod (6), and a sampling groove (8) is opened from the top end inward. A support plate (9) is welded to the inside of one side of the support frame (1). The top side is bolted to a frame (10), and a micro drive motor (11) is installed at the top of the frame (10). The shaft of the micro drive motor (11) passes through the top of the frame (10) via a rotating shaft (12) and is rotatably connected to the top of the support frame (1). A drive wheel (13) is connected to the middle of the rotating shaft (12). The drive wheel (13) meshes with a connecting wheel (14) on its side. A connecting column (15) is connected to the bottom of the connecting wheel (14). A detection rod (16) is provided inside the sampling slot (8).

2. The portable detection device for protective soil sampling according to claim 1, characterized in that: The ground piles (4) are arranged in two sets opposite each other, and the bottom end is a cone with the pointed end pointing downwards.

3. The portable detection device for protective soil sampling according to claim 1, characterized in that: The upper part of the inner side of the multiple sets of rotating teeth (7) is welded to the outer side of the sampling rod (6) to form a fixed structure, and the lower part of the inner side is suspended from the outer side of the sampling rod (6).

4. The portable detection device for protective soil sampling according to claim 1, characterized in that: The outer side of the middle end of the shaft (12) is fixed to the middle end of the drive wheel (13) by welding.

5. The portable detection device for protective soil sampling according to claim 1, characterized in that: The connecting column (15) rotates through the top of the support frame (1) and is rotatably connected to one side of the top of the support plate (9), and its outer circumference is threaded. The threaded end of the connecting column (15) is connected to the outer thread of the sampling rod (6).

6. The portable detection device for protective soil sampling according to claim 1, characterized in that: The detection rod (16) includes an upper connecting rod (161) and a lower connecting rod (162). The bottom end of the upper connecting rod (161) is threadedly connected to the inner wall of the lower connecting rod (162). The edge of the top end of the lower connecting rod (162) is provided with an anti-detachment structure (163), and a sampling box (164) is welded to the top end. The edge of the inner wall of the sampling groove (8) is provided with two sets of slots (81) opposite to each other.

7. A portable detection device for protective soil sampling according to claim 6, characterized in that: Two sets of clamping plates (82) are welded to the outer side of the lower connecting rod (162), and the two sets of clamping plates (82) are slidably connected to the inner walls of the two sets of clamping slots (81).

8. A method of using a portable protective soil sampling detection device, comprising the portable protective soil sampling detection device according to any one of claims 1-7, characterized in that: Follow these steps: S1. Move the device to the target sampling area by using the walking wheels (2). After arriving at the area, rotate the top of the two sets of ground stakes (4) so ​​that the ground stakes (4) rotate inside the threaded cylinder (3) and are vertically downward until their pointed cone-shaped bottom end is driven into the ground. S2. After fixing, start the micro drive motor (11) on the frame (10). The motor shaft rotates and drives the rotating shaft (12) to rotate. The rotating shaft (12) rotates through the welded and fixed drive wheel (13). The drive wheel (13) meshes with the connecting wheel (14), thereby driving the connecting wheel (14) and the connecting column (15) at the bottom to rotate synchronously. The connecting column (15) maintains stable rotation under the support of the support plate (9). Its threaded end is connected to the outer thread of the sampling rod (6), causing the sampling rod (6) to rotate vertically downward with the thread direction of the connecting column (15), while driving the rotating teeth (7) arranged in a ring at the bottom to rotate and drill holes in the ground soil. S3. Since the lower part of the inner side of the rotating tooth (7) is suspended from the outer side of the sampling rod (6), when the sampling rod (6) reaches the predetermined depth, its bottom end is suspended from the soil, and the soil can directly enter the sampling groove (8) inside the sampling rod (6) through the suspended position. S4. After the sampling rod (6) reaches the preset depth, the detection rod (16) is placed inside the sampling trough (8), and the soil falls directly into the sampling box (164). The upper connecting rod (161) of the detection rod (16) is threadedly connected to the lower connecting rod (162). The upper connecting rod (161) is rotated according to the sampling depth, so that it moves threadedly on the inner wall of the lower connecting rod (162). S5. The slot (81) on the inner wall of the sampling groove (8) is slidably connected to the plate (82) on the outer side of the lower connecting rod (162), which limits the lower connecting rod (162) and prevents it from rotating synchronously with the upper connecting rod (161), ensuring that the lower connecting rod (162) can move up and down normally. The anti-detachment structure (163) at the top of the lower connecting rod (162) can prevent the upper connecting rod (161) from detaching from the lower connecting rod (162). S6. After sampling is completed, reverse the operation of the micro drive motor (11) to make the sampling rod (6) move vertically upward and detach from the soil. Then turn off the motor and move the entire device to the next sampling point or storage location.

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