A sampling device and a sampling method for soil testing for research on soil under artificial forests

Abstract

The present invention belongs to the technical field of soil sampling, and specifically, is a sampling device and a sampling method for soil detection for research on soil under artificial forests, comprising an unmanned aerial vehicle body, a connecting plate fixedly connected to the lower end face of the unmanned aerial vehicle body, a sampling barrel rotatably arranged in the middle of the lower end face of the adjusting plate, a drill bit fixedly connected to the lower end of the sampling barrel, a plurality of sampling boxes plugged and slidably connected to the sampling barrel, and a clamping and lifting mechanism for preventing foreign objects on the ground from interfering with the sampling work is also arranged on the processing box. The present invention realizes the use of a clamping and lifting mechanism, and when the sampling site is covered by foreign objects, the foreign objects can be clamped by a clamping claw to make the foreign objects enter the processing box, and then the sampling work is carried out, thereby avoiding the situation that the sampling site is covered by foreign objects, and foreign object fragments are mixed into the soil sample during the sampling process, thereby interfering with the subsequent soil analysis and affecting the accuracy of the detection results.

Description

Technical Field

[0001] The invention belongs to the technical field of soil sampling, in particular to a sampling device and a sampling method for soil detection used for research on soil under artificial forests. Background Art

[0002] Artificial forest refers to a forest formed through artificial measures. Its management purpose is clear, and the tree species selection, spatial configuration and other afforestation technical measures are arranged according to people's requirements. The research results of the soil under the artificial forest can provide an important reference for forest management. For example, according to indicators such as soil nutrient content and pH, scientific fertilization and reasonable irrigation can be carried out to improve soil fertility and forest growth. By sampling the soil, soil samples for testing can be obtained for subsequent soil research work.

[0003] The patent with announcement number CN115060533B discloses a remote-controlled soil sampling device based on a drone, including a drone body, a mounting box fixedly connected to the bottom of the drone body, a drill bit arranged in the mounting box, the drill bit is rotatably connected to a mounting column, the mounting column is fixedly connected to a motor, and the output shaft of the motor is fixedly connected to the rotating shaft of the drill bit; a sampling assembly is arranged in the mounting column, and the sampling assembly is used to collect soil; a linear drive assembly for driving the mounting column to move in a vertical direction is arranged in the mounting box; the mounting box is rotatably connected to a bracket, and a plurality of sample storage cylinders are fixedly connected to the bracket, and the plurality of sample storage cylinders are distributed in a circular array about the drill bit; a first fixed plate is fixedly connected to the mounting box; this patent can make soil sampling work better and faster.

[0004] However, the above technical solution still has the following deficiencies in practical application:

[0005] Although drones can be used to sample soil to facilitate sampling, in the process of plantation management and maintenance, staff or tourists may bring in plastic bags, picnic blankets and other items and discard them at will after use. When the sampling location is covered by plastic bags, picnic blankets and other similar foreign objects, foreign debris may be mixed into the soil sample during the sampling process, thereby interfering with subsequent soil analysis and affecting the accuracy of the test results. In addition, since foreign objects such as plastic bags and picnic blankets may be large in size, the covered soil area is also large. When the original sampling site is covered, if the sampling is simply changed to a nearby location, the sampling point will deviate from the expected position, and the collected soil sample may not represent the true soil properties of the area.

[0006] To this end, the present invention provides a sampling device and a sampling method for soil detection for research on soil under artificial forests. Summary of the invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a sampling device and a sampling method for soil detection for research on soil under artificial forests.

[0008] The technical solution adopted by the present invention to solve its technical problems is: a sampling device for soil detection for research on soil under artificial forests, comprising an unmanned aerial vehicle body, a connecting plate fixedly connected to the lower end face of the unmanned aerial vehicle body, a processing box fixedly connected to the lower end of the connecting plate, a displacement plate slidably connected to one side of the lower end face of the processing box, a telescopic rod fixedly connected to one side of the lower end face of the displacement plate, an adjusting plate fixedly connected to the piston end of the telescopic rod, a threaded barrel rotatably provided on the side of the lower end face of the displacement plate away from the telescopic rod, a threaded rod four is threadedly connected to the inner cavity of the threaded barrel, the lower end of the threaded rod four is fixedly connected to one side of the upper end face of the adjusting plate, a sampling barrel rotatably provided on the middle part of the lower end face of the adjusting plate, a drill bit fixedly connected to the lower end of the sampling barrel, a plurality of sampling boxes are plugged and slidably connected to the sampling barrel, and a clamping and lifting mechanism is also provided on the processing box to prevent foreign objects on the ground from interfering with the sampling work;

[0009] The clamping and lifting mechanism includes two sliding rods slidably connected to one side of the upper end of the processing box, a lifting block is fixedly connected to a lower end of the sliding rod, two clamping claws are symmetrically distributed and rotatably provided on one side of the lifting block, a through hole is provided on one side of the bottom of the processing box, and the clamping claws can pass through the through hole, an electric push rod is fixedly connected to one side of the upper end surface of the processing box, and the piston end of the electric push rod is fixedly connected to one end of the lifting block.

[0010] Preferably, a threaded barrel is rotatably provided on one side of the lower end surface of the displacement plate, a threaded rod four is threadedly connected to the inner cavity of the threaded barrel, the lower end of the threaded rod four is fixedly connected to one side of the upper end surface of the adjustment plate, a motor eight is fixedly connected to the middle of the upper end surface of the adjustment plate, the output end of the motor eight is fixedly connected to the upper end of the sampling barrel, a motor six is ​​fixedly connected to one side of the upper end surface of the displacement plate, and the output end of the motor six is ​​fixedly connected to the upper end of the threaded barrel.

[0011] Preferably, a connecting rod is fixedly connected to one side of the sampling box, and the upper end of the connecting rod is slidably connected to the upper end surface of the inner cavity wall of the sampling tube, one end of the connecting rod is threadedly connected to a threaded rod one, both ends of the threaded rod one are rotatably arranged on the upper end of the inner cavity of the sampling tube, and a plurality of motors four are fixedly connected to the upper end surface of the inner cavity of the sampling tube, and the output end of the motor four is fixedly connected to one end of the threaded rod one, and a cover plate is fixedly connected to the middle part of the upper end surface of the inner cavity of the sampling tube, and the cover plate is plugged into and slidably connected to the sampling box.

[0012] Preferably, one end of the displacement plate is threadedly connected to a threaded rod three, both ends of the threaded rod three are rotatably arranged on the processing box, one side of the lower end surface of the processing box is fixedly connected to a motor five, and the output end of the motor five is fixedly connected to one end of the threaded rod three.

[0013] Preferably, one end of the clamp is fixedly connected to a gear, the gear is rotatably arranged on the lifting block, the two gears are meshed with each other, one side of the rear end surface of the lifting block is fixedly connected to a motor nine, and the output end of the motor nine is fixedly connected to one end of the clamp.

[0014] Preferably, a rotating roller is rotatably provided on one side of the right end surface of the inner cavity wall of the processing box, and the rotating roller is located behind the clamping claw. When the clamping claw clamps the foreign matter and brings it into the interior of the processing box, the foreign matter is in front of the rotating roller. Motor 2 is fixedly connected to one side of the right end surface of the processing box, and the output end of motor 2 is fixedly connected to one end of the rotating roller. Pressure rods are rotatably provided at the grooves on both sides of the rotating roller, and one end of the pressure rod is fixedly connected to a worm gear. The worm gear is rotatably provided on the rotating roller, and worms are rotatably provided at both ends of the inner cavity of the rotating roller. The worm wheel and the worm are meshed with each other. Motor 3 is fixedly connected to one side of the inner cavity of the rotating roller, and the output end of motor 3 is fixedly connected to one end of the worm gear.

[0015] Preferably, a push-off ring is slidably connected to one side of the upper end surface of the inner cavity of the processing box, and a threaded rod 2 is threadedly connected to the upper end of the push-off ring. Both ends of the threaded rod 2 are rotatably set on the processing box, and a motor 1 is fixedly connected to one side of the right end surface of the processing box, and the output end of the motor 1 is fixedly connected to one end of the threaded rod 2. A collection box is fixedly connected to the left end surface of the processing box, and the right end opening of the collection box is connected to the left end opening of the processing box. A box cover is provided on one side of the collection box.

[0016] Preferably, a pressure roller 1 is rotatably provided on one side of the lower end surface of the inner cavity of the processing box, and a slide plate is slidably connected to one side of the inner cavity of the processing box, and a threaded rod 5 is threadedly connected to the left end of the slide plate, and both ends of the threaded rod 5 are rotatably provided on the processing box, and a motor 7 is fixedly connected to one side of the inner cavity of the processing box, and the output end of the motor 7 is fixedly connected to one end of the threaded rod 5, and two sliding columns are slidably connected to the slide plate, and one end of the sliding column is fixedly connected to a frame, and pressure rollers 2 are rotatably provided at both ends of the frame, and a spring is sleeved on the sliding column on one side, one end of the spring is fixedly connected to the slide plate, and the other end is fixedly connected to the frame, the pressure roller 1 is located behind the through hole, and the pressure roller 2 in the initial state is located in front of the through hole, and when the pressure roller 2 approaches the pressure roller 1, it can clamp foreign objects passing through the through hole.

[0017] Preferably, two sliding rods 2 are slidably connected to one side of the lower end surface of the inner cavity of the processing box, and a blade is fixedly connected to the left end of the sliding rod 2. An electric push rod 2 is fixedly connected to one side of the lower end surface of the inner cavity of the processing box, and the piston end of the electric push rod 2 is fixedly connected to one side of the blade. The blade is located on the right side of the through hole and between the pressure roller 1 and the pressure roller 2. When a foreign object passes through the through hole, the blade can be aligned with the foreign object.

[0018] A sampling method for soil testing for research on soil under artificial forests, comprising the following specific steps:

[0019] S1. When the main body of the drone moves to the sampling area, the drill bit is aligned with the sampling position, and then the drill bit is driven to drill into the soil. When the sampling tube descends to a suitable depth, any sampling box is driven to extend from the sampling tube and inserted into the soil, so that the soil enters the sampling box, and then the sampling box is driven to retract into the sampling tube, and a sampling can be achieved;

[0020] S2. When it is necessary to sample soil at other locations, the remaining sampling boxes are driven out of the sampling tube and the samples are taken in sequence;

[0021] S3. When the drone body stops on the ground and the sampling tube is aimed at the sampling location, the situation of the sampling location can be observed through the camera on the drone body. If the sampling location is covered by foreign matter, the sampling tube can be driven to move away from above the sampling location, and the lifting block can be driven to descend and pass through the through hole so that the foreign matter is between the two clamping claws, and then the foreign matter is clamped by the clamping claws, and then the two clamping claws are driven to rise again and return to the processing box, so that the foreign matter can enter the processing box, and then the sampling tube is driven to reset again, and sampling can be carried out;

[0022] S4. After the foreign matter is clamped by the clamping claw, the foreign matter is pressed by the pressure roller 1 and the pressure roller 2, and the edges of the foreign matter on both sides are pressed tightly by the pressure rod. At this time, the clamping claw releases the foreign matter, and then drives the rotating roller to rotate, and the foreign matter can be rolled up with the cooperation of the rotating roller, the pressure roller 1 and the pressure roller 2 until the foreign matter is completely rolled up on the surface of the rotating roller;

[0023] S5. When the foreign matter is completely rolled up on the surface of the rotating roller, the two pressure rods are driven to rotate in different directions at the same time to loosen the foreign matter and extend the pressure rod into the inner cavity of the rotating roller. At this time, the push-off ring is driven to move from right to left to push the foreign matter rolled up on the surface of the rotating roller so that it falls into the collection box through the end of the rotating roller. This can realize the transfer of the foreign matter rolled up on the surface of the rotating roller, so that the rolled-up foreign matter is concentrated in the same place. At regular intervals, the staff can open the box cover and take out the foreign matter.

[0024] S6. When the clamped plastic bag contains moisture, the blade can be driven to move during the upward process to puncture the plastic bag, so that the moisture inside it flows out from the through hole instead of entering the processing box.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. The present invention discloses a sampling device and a sampling method for soil testing for soil research under artificial forests. When the drone body moves to the sampling area, the drill bit is aligned with the sampling position, and then the motor 6 and the motor 8 are started at the same time. The motor 6 drives the threaded barrel to rotate, so that the threaded rod 4 moves downward, and the telescopic rod is extended, so that the drill bit can drill into the soil. When the sampling barrel drops to a suitable depth, any one of the motors 4 is started, and the sampling box can be moved horizontally under the action of the rotation of the threaded rod 1, so that it extends from the sampling barrel and is inserted into the soil, so that the soil can enter the sampling box. Then the sampling box is driven to retract into the sampling tube to achieve one-time sampling. When it is necessary to sample the soil at other locations, the remaining sampling boxes are driven to extend from the sampling tube and sample are performed in sequence. Moreover, when the sampling box is inside the sampling tube, the cover plate covers the upper opening of the sampling box. Therefore, the soil in the sampling box will not be spilled due to the rotation of the drill bit, thereby achieving multi-point sampling of the soil, and the soil samples at different sampling points are placed separately, which can make subsequent testing and analysis more convenient, thereby more comprehensively reflecting the overall condition of the soil under the artificial forest.

[0027] 2. The sampling device and sampling method for soil testing for research on soil under artificial forests described in the present invention utilize a clamping and lifting mechanism. When the sampling site is covered by foreign matter, the foreign matter can be clamped by the clamping claws to allow the foreign matter to enter the processing box before sampling is performed. This avoids the situation where the sampling site is covered by foreign matter and foreign matter fragments are mixed into the soil sample during the sampling process, thereby interfering with subsequent soil analysis and affecting the accuracy of the test results. At the same time, it also avoids the situation where the sampling point deviates from the expected position due to sampling at a nearby location, resulting in the collected soil sample being unable to represent the true soil properties of the area. Moreover, when the foreign matter enters the processing box, the foreign matter is pressed by the first and second pressure rollers, and the two pressure rods are driven to rotate in different directions at the same time to press the end of the foreign matter against the surface of the rotating roller, and then the rotating roller is driven to rotate to reel in the foreign matter until the foreign matter is removed. When all foreign objects are rolled up on the surface of the rotating roller, it is avoided that the foreign objects are not completely entered into the processing box due to their large size. During the sampling process, the part of the foreign objects exposed outside the processing box is blown by the wind and contacts with the sampling tube and the drill bit again, causing the foreign object fragments to be mixed into the soil sample. Moreover, when the foreign objects are completely rolled up on the surface of the rotating roller, the two pressure rods are driven to rotate in different directions at the same time again to loosen the foreign objects, and the push-down ring is driven to move to push the foreign objects rolled up on the surface of the rotating roller into the collection box, so that the foreign objects rolled up on the surface of the rotating roller can be transferred, and the rolled-up foreign objects are collected in the same place, thereby avoiding the situation that the foreign objects fall out through the through hole and cover the other sampling locations again, so that the clamping claws and the rotating roller can work continuously, and the volume of the rolled-up foreign objects is reduced, and when placed in the collection box, the occupied space is also reduced, thereby increasing the capacity of the collection box.

[0028] 3. The sampling device and sampling method for soil testing for research on soil under artificial forests described in the present invention, when the plastic bag clamped by the clamp contains moisture, the electric push rod 2 can be used to drive the blade to move during the rising process of the clamp to puncture the plastic bag, so that the moisture inside it flows out from the through hole instead of entering the processing box, thereby ensuring that it can be rolled up normally. At the same time, it also avoids the situation where the moisture in the plastic bag enters the processing box due to the rupture of the plastic bag during rolling, thereby affecting the electrical control components inside the processing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the processing box;

[0032] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of the sampling tube;

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of a half-section of a sampling tube;

[0035] Figure 6 It is a schematic diagram of the three-dimensional structure of the sampling box;

[0036] Figure 7 It is a schematic diagram of the three-dimensional structure inside the processing box from another perspective;

[0037] Figure 8 yes Figure 7 A partial enlarged view of point B in the middle;

[0038] Fig. 9 It is a schematic diagram of the three-dimensional structure of the rotating roller;

[0039] Fig.10 is a schematic diagram of the three-dimensional structure at the displacement plate;

[0040] Fig.11 It is a schematic diagram of the three-dimensional structure of the collection box;

[0041] Fig.12 It is a schematic diagram of the three-dimensional structure of the skateboard;

[0042] Fig.13 yes Fig.12 A partial enlarged view of point C in the middle;

[0043] Fig.14 It is a schematic diagram of the three-dimensional structure of the blade;

[0044] Fig.15 It is a schematic diagram of the two-dimensional structure of the electric push rod.

[0045] In the figure: 1. UAV body; 2. Worm gear; 3. Processing box; 4. Collection box; 5. Box cover; 6. Sampling tube; 7. Sampling box; 8. Drill bit; 9. Connecting plate; 10. Electric push rod 1; 11. Sliding rod 1; 12. Motor 1; 13. Motor 2; 14. Push-down ring; 15. Rotating roller; 16. Adjusting plate; 17. Worm; 18. Motor 3; 19. Cover plate; 20. Connecting rod; 21. Threaded rod 1; 22. Motor 4; 23. Threaded rod 2; 24. Lifting block; 25. Gripping jaw; 26. Gear; 27. Motor nine; 28. Through hole; 29. ​​Motor five; 30. Threaded rod three; 31. Displacement plate; 32. Motor six; 33. Threaded rod four; 34. Threaded cylinder; 35. Telescopic rod; 36. Pressure roller one; 37. Threaded rod five; 38. Motor seven; 39. Pressure roller two; 40. Sliding column; 41. Spring; 42. Electric push rod two; 43. Sliding rod two; 44. Blade; 45. Pressure rod; 46. Motor eight; 47. Slide plate; 48. Frame. DETAILED DESCRIPTION

[0046] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Please refer to Figure 1-Figure 15 The present invention provides a technical solution: a sampling device for soil detection for research on soil under artificial forests, comprising an unmanned aerial vehicle body 1, a connecting plate 9 is fixedly connected to the lower end of the unmanned aerial vehicle body 1, a processing box 3 is fixedly connected to the lower end of the connecting plate 9, a displacement plate 31 is slidably connected to one side of the lower end of the processing box 3, a telescopic rod 35 is fixedly connected to one side of the lower end of the displacement plate 31, an adjusting plate 16 is fixedly connected to the piston end of the telescopic rod 35, a threaded cylinder 34 is rotatably provided on the side of the lower end of the displacement plate 31 away from the telescopic rod 35, a threaded rod four 33 is threadedly connected to the inner cavity of the threaded cylinder 34, the lower end of the threaded rod four 33 is fixedly connected to one side of the upper end of the adjusting plate 16, a sampling cylinder 6 is rotatably provided in the middle part of the lower end of the adjusting plate 16, a drill bit 8 is fixedly connected to the lower end of the sampling cylinder 6, a plurality of sampling boxes 7 are plugged and slidably connected to the sampling cylinder 6, and a clamping and lifting mechanism is also provided on the processing box 3 to prevent foreign objects on the ground from interfering with the sampling work;

[0048] The clamping and lifting mechanism includes two sliding rods 11 slidably connected to one side of the upper end of the processing box 3, and the lower end of the sliding rod 11 is fixedly connected to a lifting block 24. One side of the lifting block 24 is symmetrically distributed and rotatably provided with two clamping claws 25. One side of the bottom of the processing box 3 is provided with a through hole 28, and the clamping claw 25 can pass through the through hole 28. One side of the upper end surface of the processing box 3 is fixedly connected to an electric push rod 10, and the piston end of the electric push rod 10 is fixedly connected to one end of the lifting block 24.

[0049] In this embodiment, Figure 1 , Figure 3-Figure 6 , Fig.10 As shown, a motor eight 46 is fixedly connected to the middle of the upper end surface of the adjustment plate 16, and the output end of the motor eight 46 is fixedly connected to the upper end of the sampling tube 6. A motor six 32 is fixedly connected to one side of the upper end surface of the displacement plate 31, and the output end of the motor six 32 is fixedly connected to the upper end of the threaded tube 34.

[0050] A connecting rod 20 is fixedly connected to one side of the sampling box 7, and the upper end of the connecting rod 20 is slidably connected to the upper end surface of the inner cavity wall of the sampling tube 6. One end of the connecting rod 20 is threadedly connected to a threaded rod 21, and both ends of the threaded rod 21 are rotatably set at the upper end of the inner cavity of the sampling tube 6. A plurality of motors 4 22 are fixedly connected to the upper end surface of the inner cavity of the sampling tube 6, and the output end of the motor 4 22 is fixedly connected to one end of the threaded rod 21. A cover plate 19 is fixedly connected to the middle part of the upper end surface of the inner cavity of the sampling tube 6, and the cover plate 19 is plugged into and slidably connected to the sampling box 7.

[0051] Specifically, when the drone body 1 moves to the sampling area, the drill bit 8 is aligned with the sampling position, and then the motor six 32 and the motor eight 46 are started at the same time. The motor six 32 drives the threaded barrel 34 to rotate, so that the threaded rod four 33 can move downward, and the telescopic rod 35 is extended, so that the drill bit 8 can drill into the soil. When the sampling barrel 6 drops to a suitable depth, any motor four 22 is started, and the sampling box 7 can be moved horizontally under the action of the rotation of the threaded rod one 21, so that it extends from the sampling barrel 6 and is inserted into the soil, so that the soil can enter the sampling box 7, and then the sampling box 7 is driven to retract. When the sampling box 7 is inside the sampling tube 6, the cover plate 19 covers the upper opening of the sampling box 7. Therefore, the soil in the sampling box 7 will not be spilled due to the rotation of the drill bit 8, thereby realizing multi-point sampling of the soil, and the soil samples at different sampling points are placed separately, which can make subsequent detection and analysis more convenient, thereby more comprehensively reflecting the overall condition of the soil under the artificial forest.

[0052] In this embodiment, Figure 1 , Figure 2 , Figure 7-Figure 13As shown, one end of the displacement plate 31 is threadedly connected to a threaded rod 30, both ends of the threaded rod 30 are rotatably set on the processing box 3, and one side of the lower end surface of the processing box 3 is fixedly connected to a motor 5 29, and the output end of the motor 5 29 is fixedly connected to one end of the threaded rod 30.

[0053] One end of the clamp 25 is fixedly connected to a gear 26, which is rotatably arranged on the lifting block 24, and the two gears 26 are meshed with each other. A motor 27 is fixedly connected to one side of the rear end surface of the lifting block 24, and the output end of the motor 27 is fixedly connected to one end of the clamp 25.

[0054] A rotating roller 15 is rotatably provided on one side of the right end surface of the inner cavity wall of the processing box 3, and the rotating roller 15 is located behind the clamping claw 25. When the clamping claw 25 clamps the foreign matter and brings it into the inside of the processing box 3, the foreign matter is in front of the rotating roller 15. A motor 2 is fixedly connected to one side of the right end surface of the processing box 3, and the output end of the motor 2 13 is fixedly connected to one end of the rotating roller 15. Pressure rods 45 are rotatably provided at the grooves on both sides of the rotating roller 15, and one end of the pressure rod 45 is fixedly connected to a worm gear 2. The worm gear 2 is rotatably provided on the rotating roller 15. Worm 17 is rotatably provided at both ends of the inner cavity of the rotating roller 15, and the worm gear 2 and the worm gear 17 are meshed with each other. A motor 3 18 is fixedly connected to one side of the inner cavity of the rotating roller 15, and the output end of the motor 3 18 is fixedly connected to one end of the worm gear 17.

[0055] A push-off ring 14 is slidably connected to one side of the upper end surface of the inner cavity of the processing box 3, and a threaded rod 23 is threadedly connected to the upper end of the push-off ring 14. Both ends of the threaded rod 23 are rotatably set on the processing box 3. A motor 12 is fixedly connected to one side of the right end surface of the processing box 3, and the output end of the motor 12 is fixedly connected to one end of the threaded rod 23. A collection box 4 is fixedly connected to the left end surface of the processing box 3, and the right end opening of the collection box 4 is connected to the left end opening of the processing box 3. A box cover 5 is provided on one side of the collection box 4.

[0056] A pressure roller 36 is rotatably provided on one side of the lower end surface of the inner cavity of the processing box 3, and a slide plate 47 is slidably connected to one side of the inner cavity of the processing box 3. A threaded rod 5 37 is threadedly connected to the left end of the slide plate 47, and both ends of the threaded rod 5 37 are rotatably provided on the processing box 3. A motor 7 38 is fixedly connected to one side of the inner cavity of the processing box 3, and the output end of the motor 7 38 is fixedly connected to one end of the threaded rod 5 37. Two sliding columns 40 are slidably connected to the slide plate 47, and one end of the sliding column 40 is fixedly connected to a frame 48. Pressure rollers 2 39 are rotatably provided at both ends of the frame 48. A spring 41 is sleeved on one side of the sliding column 40, and one end of the spring 41 is fixedly connected to the slide plate 47, and the other end is fixedly connected to the frame 48. The pressure roller 1 36 is located behind the through hole 28, and the pressure roller 2 39 in the initial state is located in front of the through hole 28. When the pressure roller 2 39 approaches the pressure roller 1 36, it can clamp foreign objects passing through the through hole 28.

[0057] Specifically, the existing soil sampling device uses drones to sample the soil when in use. The drones can reach areas that are difficult for samplers to reach, providing convenience for sampling work. However, in the management and maintenance of artificial forests, staff or tourists may bring in plastic bags, picnic blankets and other items, and discard them at will after use. When the sampling location is covered by plastic bags, picnic blankets and other similar foreign objects, it may cause foreign debris to mix into the soil sample during the sampling process, thereby interfering with subsequent soil analysis, and further affecting the accuracy of the test results. In addition, since the volume of foreign objects such as plastic bags and picnic blankets may be large, the covered soil range is also large. When the original sampling location is covered, if the sampling is simply changed to a nearby location, the sampling point will deviate from the expected position, and the collected soil sample may not represent the true soil properties of the area.

[0058] Therefore, in order to solve the above problems, when the present embodiment is in use, when the drone body 1 stops on the ground and the sampling tube 6 is aimed at the sampling location, the situation at the sampling location can be observed through the camera on the drone body 1. If the sampling location is covered by foreign matter, the motor 5 29 can be used to drive the threaded rod 3 30 to rotate, so that the displacement plate 31 slides and the sampling tube 6 is moved away from the sampling location. At this time, the electric push rod 10 is used to drive the lifting block 24 to descend and pass through the through hole 28, so that the foreign matter is between the two clamping claws 25, and then the motor 9 27 is used to drive the clamping claw 25 on one side to rotate, and the displacement plate 31 is moved between the two gears 26. With the cooperation of the clamping jaws 25, the foreign matter is clamped by the clamping jaws 25, and then the two clamping jaws 25 are driven to rise and return to the processing box 3 again, so that the foreign matter can enter the processing box 3, and then the sampling tube 6 is driven to reset again, and the sampling work can be carried out, thereby avoiding the situation that the sampling site is covered by foreign matter, resulting in foreign matter fragments being mixed into the soil sample during the sampling process, thereby interfering with the subsequent soil analysis and affecting the accuracy of the test results. At the same time, it also avoids the situation that the sampling point deviates from the expected position due to the change to a nearby location for sampling, resulting in the collected soil sample being unable to represent the real soil properties of the area;

[0059] When the clamping jaws 25 bring foreign objects such as plastic bags and picnic cloths into the processing box 3, if the foreign objects such as plastic bags and picnic cloths are large in size, the foreign objects may not be completely entered into the processing box 3, and part of them may still be exposed outside the processing box 3. During the sampling process, the part of the foreign object exposed outside the processing box 3 may flutter due to the wind and contact the sampling tube 6 and the drill bit 8 again, causing the foreign object fragments to be mixed into the soil sample. In addition, after the foreign object is clamped by the clamping jaws 25, the foreign object will always be between the clamping jaws 25. When the sampling location needs to be changed, if the sampling location is still covered by foreign objects, the clamping jaws 25 need to put down the foreign object first before the next clamping function can be performed. If the foreign object falls out through the through hole 28, it will fall to the soil sample again. The sampling location and the sampling work will be affected again. Therefore, in order to avoid the above problems, when the foreign matter enters the processing box 3, the motor 7 38 drives the threaded rod 5 37 to rotate, so that the slide plate 47 slides, and the pressure roller 2 39 approaches the pressure roller 1 36 until the pressure roller 1 36 and the pressure roller 2 39 press the foreign matter, and the spring 41 is compressed. When the foreign matter is in front of the rotating roller 15, the motor 3 18 drives the worm 17 to rotate, so that the two worm wheels 2 and the pressure rod 45 rotate in different directions at the same time to press the foreign matter on the surface of the rotating roller 15. In addition, since the foreign matter will pass through the through hole 28 when entering the processing box 3, the width of the foreign matter after entering the processing box 3 will not exceed the width of the through hole 28, and the pressure rod 45 can press the edges on both sides of the foreign matter. At this time, the clamping claw 25 can loosen the foreign matter, and then use the motor 2 13 to drive the rotating roller 15 to rotate, and the rotating roller 15, the pressure roller 1 36, and the pressure roller 2 39 can cooperate to roll up the foreign matter until the foreign matter is completely rolled up on the surface of the rotating roller 15, thereby avoiding the foreign matter from not completely entering the processing box 3 due to its large size. During the sampling process, the part of the foreign matter exposed outside the processing box 3 is blown by the wind and contacts the sampling tube 6 and the drill bit 8 again, causing the foreign matter fragments to be mixed into the soil sample; and, when the foreign matter is completely rolled up on the surface of the rotating roller 15, the two pressure rods 45 are driven to rotate in different directions at the same time again to loosen the foreign matter and extend the pressure rod 45 into the inner cavity of the rotating roller 15. At this time, The motor 12 can be used to drive the threaded rod 23 to rotate, so that the push-down ring 14 moves from right to left, so as to push the foreign matter wound on the surface of the rotating roller 15, so that it falls into the collecting box 4 through the end of the rotating roller 15, thereby realizing the transfer of the foreign matter wound on the surface of the rotating roller 15, so that the wound foreign matter is collected in the same place, thereby avoiding the situation that the foreign matter falls out through the through hole 28 and covers the other sampling locations again, so that the clamping claw 25 and the rotating roller 15 can continue to work, and the volume of the foreign matter after being wound is reduced, and when placed in the collecting box 4, the occupied space is also reduced, thereby increasing the capacity of the collecting box 4; at regular intervals, the staff opens the box cover 5 and takes out the foreign matter therein.

[0060] In this embodiment, Fig.12 , Fig.14 , Fig.15 As shown, two slide rods 43 are slidably connected to one side of the lower end surface of the inner cavity of the processing box 3, and a blade 44 is fixedly connected to the left end of the slide rod 43. An electric push rod 42 is fixedly connected to one side of the lower end surface of the inner cavity of the processing box 3. The piston end of the electric push rod 42 is fixedly connected to one side of the blade 44. The blade 44 is located on the right side of the through hole 28 and between the pressure roller 1 36 and the pressure roller 2 39. When foreign matter passes through the through hole 28, the blade 44 can be aligned with the foreign matter.

[0061] Specifically, in the above embodiment, when the foreign matter is a plastic bag, it may still contain some moisture. This may be due to the accumulation of rainwater inside the plastic bag due to rain. When there is moisture inside the plastic bag, its volume will increase, making it difficult to perform the above-mentioned winding work. At the same time, if the plastic bag is broken inside the processing box 3, the moisture inside it will also enter the processing box 3, affecting the electrical control components inside the processing box 3. Therefore, in order to avoid this situation, when the plastic bag contains moisture, the electric push rod 2 42 can be used to drive the blade 44 to move during the rising process to puncture the plastic bag, so that the moisture inside it flows out from the through hole 28 instead of entering the processing box 3, thereby ensuring that it can be wound up normally. At the same time, it also avoids the situation where the moisture in the plastic bag enters the processing box 3 due to the rupture of the plastic bag during winding, thereby affecting the electrical control components inside the processing box 3.

[0062] A sampling method for soil testing for research on soil under artificial forests, comprising the following specific steps:

[0063] S1. When the drone body 1 moves to the sampling area, the drill bit 8 is aligned with the sampling position, and then the drill bit 8 is driven to drill into the soil. When the sampling tube 6 drops to a suitable depth, any sampling box 7 is driven to extend from the sampling tube 6 and inserted into the soil, so that the soil can enter the sampling box 7, and then the sampling box 7 is driven to retract into the sampling tube 6, so that one sampling can be achieved;

[0064] S2. When it is necessary to sample soil at other locations, the remaining sampling boxes 7 are driven to extend from the sampling tube 6, and sampling is performed in sequence;

[0065] S3, when the drone body 1 stops on the ground and the sampling tube 6 is aimed at the sampling location, the situation of the sampling location can be observed through the camera on the drone body 1. If the sampling location is covered by foreign matter, the sampling tube 6 can be driven to move away from above the sampling location, and the lifting block 24 can be driven to descend and pass through the through hole 28, so that the foreign matter is between the two clamping claws 25, and then the foreign matter is clamped by the clamping claws 25, and then the two clamping claws 25 are driven to rise again and return to the processing box 3, so that the foreign matter can enter the processing box 3, and then the sampling tube 6 is driven to reset again, and the sampling work can be carried out;

[0066] S4. After the foreign object is clamped by the clamping jaws 25, the foreign object is pressed by the pressure roller 1 36 and the pressure roller 2 39, and the edges of the foreign object on both sides are pressed tightly by the pressure rod 45. At this time, the clamping jaws 25 release the foreign object, and then drive the rotating roller 15 to rotate, and the foreign object can be rolled up with the cooperation of the rotating roller 15, the pressure roller 1 36, and the pressure roller 2 39 until the foreign object is completely rolled up on the surface of the rotating roller 15;

[0067] S5. When the foreign matter is completely rolled up on the surface of the rotating roller 15, the two pressure rods 45 are driven to rotate in different directions at the same time to loosen the foreign matter and extend the pressure rod 45 into the inner cavity of the rotating roller 15. At this time, the push-down ring 14 is driven to move from right to left to push the foreign matter rolled up on the surface of the rotating roller 15 so that it falls into the collection box 4 through the end of the rotating roller 15. This can realize the transfer of the foreign matter rolled up on the surface of the rotating roller 15, so that the rolled-up foreign matter is concentrated in the same place. At regular intervals, the staff can open the box cover 5 to take out the foreign matter.

[0068] S6. When the clamped plastic bag contains moisture, the blade 44 can be driven to move during the upward process to puncture the plastic bag, so that the moisture inside the plastic bag flows out from the through hole 28 without entering the processing box 3.

[0069] Working principle: When the drone body 1 moves to the sampling area, the drill bit 8 is aligned with the sampling position, and then the drill bit 8 is driven to drill into the soil. When the sampling tube 6 drops to a suitable depth, any sampling box 7 is driven to extend from the sampling tube 6 and inserted into the soil, so that the soil can enter the sampling box 7, and then the sampling box 7 is driven to retract into the sampling tube 6, so that one sampling can be achieved; when it is necessary to sample the soil at other locations, the remaining sampling boxes 7 are driven to extend from the sampling tube 6, and sampling can be carried out in sequence; when the drone body 1 stops on the ground, When the sampling tube 6 is aimed at the sampling location, the situation of the sampling location can be observed through the camera on the drone body 1. If the sampling location is covered by foreign matter, the sampling tube 6 can be driven to move away from above the sampling location, and the lifting block 24 can be driven to descend and pass through the through hole 28, so that the foreign matter is between the two clamping claws 25, and then the foreign matter is clamped by the clamping claws 25, and then the two clamping claws 25 are driven to rise again and return to the processing box 3, so that the foreign matter can enter the processing box 3, and then the sampling tube 6 is driven to reset again, and the sampling work can be carried out; when the foreign matter is clamped by the clamping claws 2 After the foreign object is clamped, the pressure roller 1 36 and the pressure roller 2 39 are used to press the foreign object, and the pressure rod 45 is used to press the edges of the foreign object on both sides. At this time, the clamping claw 25 releases the foreign object, and then the rotating roller 15 is driven to rotate. The foreign object can be rolled up with the cooperation of the rotating roller 15, the pressure roller 1 36, and the pressure roller 2 39 until the foreign object is completely rolled up on the surface of the rotating roller 15; when the foreign object is completely rolled up on the surface of the rotating roller 15, the two pressure rods 45 are driven to rotate in different directions at the same time to release the foreign object, and the pressure rod 45 is extended into the inner cavity of the rotating roller 15. At this time, the push ring is driven to 14 moves from right to left to push the foreign matter wound on the surface of the rotating roller 15, so that it falls into the collection box 4 through the end of the rotating roller 15, thereby realizing the transfer of the foreign matter wound on the surface of the rotating roller 15, so that the wound foreign matter is collected in the same place. At regular intervals, the staff opens the box cover 5 and takes out the foreign matter. When the clamped plastic bag contains moisture, the blade 44 can be driven to move during its rising process to puncture the plastic bag, so that the moisture inside it flows out from the through hole 28 without entering the processing box 3.

Claims

1. A sampling device for soil testing for research on soil under artificial forests, comprising an unmanned aerial vehicle (UAV) body (1), characterized in that: The lower end surface of the drone body (1) is fixedly connected to a connecting plate (9), the lower end of the connecting plate (9) is fixedly connected to a processing box (3), one side of the lower end surface of the processing box (3) is slidably connected to a displacement plate (31), one side of the lower end surface of the displacement plate (31) is fixedly connected to a telescopic rod (35), the piston end of the telescopic rod (35) is fixedly connected to an adjustment plate (16), and a threaded cylinder (34) is rotatably provided on the side of the lower end surface of the displacement plate (31) away from the telescopic rod (35). The inner cavity of the threaded barrel (34) is threadedly connected to a threaded rod four (33), the lower end of the threaded rod four (33) is fixedly connected to one side of the upper end surface of the adjustment plate (16), a sampling barrel (6) is rotatably arranged in the middle of the lower end surface of the adjustment plate (16), a drill bit (8) is fixedly connected to the lower end of the sampling barrel (6), a plurality of sampling boxes (7) are plugged and slidably connected to the sampling barrel (6), and the processing box (3) is also provided with a clamping and lifting mechanism to prevent foreign matter on the ground from interfering with the sampling work; The clamping and lifting mechanism comprises two sliding rods (11) slidably connected to one side of the upper end of the processing box (3); the lower end of the sliding rod (11) is fixedly connected to a lifting block (24); one side of the lifting block (24) is symmetrically distributed and rotatably provided with two clamping claws (25); one side of the bottom of the processing box (3) is provided with a through hole (28); the clamping claws (25) can pass through the through hole (28); one side of the upper end surface of the processing box (3) is fixedly connected to an electric push rod (10); the piston end of the electric push rod (10) is fixedly connected to one end of the lifting block (24).

2. A sampling device for soil testing for research on soil under artificial forests according to claim 1, characterized in that: A motor eight (46) is fixedly connected to the middle of the upper end surface of the adjustment plate (16), and the output end of the motor eight (46) is fixedly connected to the upper end of the sampling tube (6). A motor six (32) is fixedly connected to one side of the upper end surface of the displacement plate (31), and the output end of the motor six (32) is fixedly connected to the upper end of the threaded tube (34).

3. A sampling device for soil testing for research on soil under artificial forests according to claim 2, characterized in that: A connecting rod (20) is fixedly connected to one side of the sampling box (7), and the upper end of the connecting rod (20) is slidably connected to the upper end surface of the inner cavity wall of the sampling tube (6). One end of the connecting rod (20) is threadedly connected to a threaded rod (21), and both ends of the threaded rod (21) are rotatably arranged on the upper end of the inner cavity of the sampling tube (6). A plurality of motors (22) are fixedly connected to the upper end surface of the inner cavity of the sampling tube (6), and the output end of the motor (22) is fixedly connected to one end of the threaded rod (21). A cover plate (19) is fixedly connected to the middle part of the upper end surface of the inner cavity of the sampling tube (6), and the cover plate (19) is plugged into and slidably connected to the sampling box (7).

4. A sampling device for soil testing for research on soil under artificial forests according to claim 3, characterized in that: One end of the displacement plate (31) is threadedly connected to a threaded rod (30), both ends of the threaded rod (30) are rotatably arranged on the processing box (3), one side of the lower end surface of the processing box (3) is fixedly connected to a motor (29), and the output end of the motor (29) is fixedly connected to one end of the threaded rod (30).

5. A sampling device for soil testing for research on soil under artificial forests according to claim 4, characterized in that: One end of the clamping jaw (25) is fixedly connected to a gear (26), and the gear (26) is rotatably arranged on the lifting block (24). The two gears (26) are meshed with each other. One side of the rear end surface of the lifting block (24) is fixedly connected to a motor nine (27), and the output end of the motor nine (27) is fixedly connected to one end of the clamping jaw (25).

6. A sampling device for soil testing for research on soil under artificial forests according to claim 5, characterized in that: A rotating roller (15) is rotatably provided on one side of the right end surface of the inner cavity wall of the processing box (3), and the rotating roller (15) is located behind the clamping claw (25). When the clamping claw (25) clamps the foreign matter and brings it into the processing box (3), the foreign matter is in front of the rotating roller (15). A motor 2 (13) is fixedly connected to one side of the right end surface of the processing box (3), and the output end of the motor 2 (13) is fixedly connected to one end of the rotating roller (15). Pressure rods (45) are rotatably provided at the grooves on both sides of the rotating roller (15), and one end of the pressure rod (45) is fixedly connected to a worm gear (2). The worm gear (2) is rotatably provided on the rotating roller (15). Worms (17) are rotatably provided at both ends of the inner cavity of the rotating roller (15), and the worm gear (2) and the worm gear (17) are meshed with each other. A motor 3 (18) is fixedly connected to one side of the inner cavity of the rotating roller (15), and the output end of the motor 3 (18) is fixedly connected to one end of the worm gear (17).

7. A sampling device for soil testing for research on soil under artificial forests according to claim 6, characterized in that: A push-down ring (14) is slidably connected to one side of the upper end surface of the inner cavity of the processing box (3); a threaded rod (23) is threadedly connected to the upper end of the push-down ring (14); both ends of the threaded rod (23) are rotatably arranged on the processing box (3); a motor (12) is fixedly connected to one side of the right end surface of the processing box (3); an output end of the motor (12) is fixedly connected to one end of the threaded rod (23); a collection box (4) is fixedly connected to the left end surface of the processing box (3); a right end opening of the collection box (4) is communicated with a left end opening of the processing box (3); and a box cover (5) is arranged on one side of the collection box (4).

8. The sampling device for soil testing for research on soil under artificial forests according to claim 7, characterized in that: A pressure roller 1 (36) is rotatably arranged on one side of the lower end surface of the inner cavity of the processing box (3); a slide plate (47) is slidably connected to one side of the inner cavity of the processing box (3); a threaded rod 5 (37) is threadedly connected to the left end of the slide plate (47); both ends of the threaded rod 5 (37) are rotatably arranged on the processing box (3); a motor 7 (38) is fixedly connected to one side of the inner cavity of the processing box (3); the output end of the motor 7 (38) is fixedly connected to one end of the threaded rod 5 (37); two slide columns (40) are slidably connected to the slide plate (47); One end of the slide column (40) is fixedly connected to a frame body (48), and two pressure rollers (39) are rotatably arranged at both ends of the frame body (48). A spring (41) is sleeved on one side of the slide column (40), and one end of the spring (41) is fixedly connected to a slide plate (47), and the other end is fixedly connected to the frame body (48). The pressure roller (36) is located behind the through hole (28), and the pressure roller (39) is located in front of the through hole (28) in an initial state. When the pressure roller (39) approaches the pressure roller (36), foreign matter passing through the through hole (28) can be clamped.

9. A sampling device for soil testing for research on soil under artificial forests according to claim 8, characterized in that: Two sliding rods (43) are slidably connected to one side of the lower end surface of the inner cavity of the processing box (3), and a blade (44) is fixedly connected to the left end of the sliding rod (43). An electric push rod (42) is fixedly connected to one side of the lower end surface of the inner cavity of the processing box (3), and the piston end of the electric push rod (42) is fixedly connected to one side of the blade (44). The blade (44) is located on the right side of the through hole (28) and between the pressure roller (36) and the pressure roller (39). When a foreign object passes through the through hole (28), the blade (44) can be aligned with the foreign object.

10. A sampling method for soil testing for research on soil under artificial forests, characterized in that: Sampling using the sampling device according to claim 9 comprises the following specific steps: S1. When the drone body (1) moves to the sampling area, the drill bit (8) is aligned with the sampling position, and then the drill bit (8) is driven to drill into the soil. When the sampling tube (6) descends to a suitable depth, any sampling box (7) is driven to extend from the sampling tube (6) and inserted into the soil, so that the soil enters the sampling box (7). Then, the sampling box (7) is driven to retract into the sampling tube (6), and a sampling is achieved. S2. When it is necessary to sample soil at other locations, the remaining sampling boxes (7) are driven to extend from the sampling tube (6) and samples are taken in sequence; S3. When the drone body (1) stops on the ground and the sampling tube (6) is aimed at the sampling location, the situation at the sampling location can be observed through the camera on the drone body (1). If the sampling location is covered by foreign matter, the sampling tube (6) can be driven to move away from above the sampling location, and the lifting block (24) can be driven to descend and pass through the through hole (28) so that the foreign matter is between the two clamping claws (25). The clamping claws (25) are then used to clamp the foreign matter. The two clamping claws (25) are then driven to rise again and return to the processing box (3), so that the foreign matter enters the processing box (3). The sampling tube (6) is then driven to reset again, and sampling can be performed. S4. After the foreign object is clamped by the clamping claw (25), the foreign object is pressed by the pressure roller 1 (36) and the pressure roller 2 (39), and the edges of both sides of the foreign object are pressed tightly by the pressure rod (45). At this time, the clamping claw (25) releases the foreign object, and then drives the rotating roller (15) to rotate, so that the foreign object can be rolled up with the cooperation of the rotating roller (15), the pressure roller 1 (36), and the pressure roller 2 (39), until the foreign object is completely rolled up on the surface of the rotating roller (15); S5. When the foreign matter is completely rolled onto the surface of the rotating roller (15), the two pressure rods (45) are driven to rotate in different directions at the same time to loosen the foreign matter and extend the pressure rods (45) into the inner cavity of the rotating roller (15). At this time, the push-off ring (14) is driven to move from right to left to push the foreign matter rolled onto the surface of the rotating roller (15) so that it falls from the end of the rotating roller (15) into the collection box (4). Thus, the foreign matter rolled onto the surface of the rotating roller (15) is transferred, so that the rolled foreign matter is collected in one place. At regular intervals, the staff can open the box cover (5) to take out the foreign matter. S6. When the clamped plastic bag contains water, the blade (44) can be driven to move during the upward process to puncture the plastic bag, so that the water inside the plastic bag flows out from the through hole (28) instead of entering the processing box (3).

Images