Soil detection sampling device and sampling method

Abstract

The invention relates to the technical field of detection sampling, and provides a soil detection sampling device and a soil detection sampling method.The soil detection sampling device comprises a sampling barrel and further comprises a crushing blade, the outer surface of the sampling barrel is provided with a threaded groove, the crushing blade is arranged at the bottom of the sampling barrel, and the outer surface of the sampling barrel is provided with a movable frame; the limiting column is arranged on the outer surface of the moving frame, and a lifting plate is arranged on the outer surface of the limiting column; when the device is used, the first threaded rod rotates to drive the pushing frame to vertically move in the fixing plate, the pushing frame moves to drive the first magnet, the lifting box and a thin film to enter soil in the sampling barrel, and after the thin film is separated from the inner wall of the lifting box in the soil extrusion process, the thin film is separated from the inner wall of the lifting box. The soil is extruded to the bottom of the lifting box, the soil is embedded into the lifting box in the process, and soil sampling is carried out in the sampling barrel at different heights, so that the representativeness of a soil sample and the accuracy of an analysis result are improved through the stability in the sampling process.

Description

Technical Field

[0001] The present invention relates to the technical field of detection and sampling, and particularly to a soil detection sampling device and a sampling method. Background Art

[0002] Soil detection sampling refers to the process of collecting soil samples from specific locations. These samples are then sent to a laboratory for various analyses to evaluate the physical, chemical, and biological properties of the soil. Soil detection sampling is an important step in environmental monitoring, agricultural production, land management, and scientific research. Its purpose is to understand the quality status of the soil, identify potential problems (such as pollution), and provide a scientific basis for decision-making.

[0003] The patent with the publication number CN118392561A records in its specification that "this application relates to a soil detection sampling device and a soil sampling method. The soil detection sampling device includes a base body, a cylinder fixed to the lower end of the base body, a collection box rotatably connected to the outer peripheral wall of the cylinder, a spiral shaft coaxially passing through the cylinder and rotatably connected to the base body along the circumferential direction, a rotary drive source provided at the upper end of the base body for driving the spiral shaft to rotate, a conical cover covering the lower end of the cylinder, a connecting rod slidably connected to the spiral shaft in the vertical direction and having its lower end connected to the conical cover, a linear drive source provided on the base body and connected to the connecting rod, and an earth-digging rod pivotally connected to the lower end of the spiral shaft. An outlet is provided on the circumferential wall of the cylinder close to the base body, and the collection box has a collection port corresponding to the outlet; the earth-digging rod includes a driving part, a pivoting part, and an earth-digging part, which are connected in sequence. The pivoting part is pivotally connected to the lower end of the sleeve, the driving part extends into the sleeve, and the earth-digging part is located outside the sleeve; this application has the effect of avoiding the mixing of upper and lower layer soils".

[0004] However, in the prior art, the following disadvantages will occur during use: In the actual use process, although the above technology designs a telescopic earth-digging rod and a segmented conveying structure to reduce the mixing of soils at different depths, since the spiral shaft is likely to drive and adhere the soil along the inner wall of the cylinder during rotation, especially under high humidity or sticky soil conditions, the residues cannot be discharged in time and are extremely likely to be mixed with the newly sampled soil during the next stage of sampling, resulting in unclear stratification. When the soil is drilled or lifted, in the case of high humidity or loose texture, it is easy to occur the phenomenon of collapse or sliding, causing the upper soil sample to penetrate into the lower layer, affecting the representativeness of the sample and the accuracy of the analysis results. Therefore, there is an urgent need for a soil detection sampling device and a sampling method to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to solve the problems existing in the prior art. During actual use, although the above technology designs a telescopic soil excavation rod and a segmented conveying structure to reduce the mixing of soils at different depths, during the rotation of the spiral shaft, the soil is easily driven and adhered along the inner wall of the cylinder. Especially under the conditions of high humidity or viscous soil, the residues cannot be discharged in time, and it is extremely easy to mix with the newly sampled soil during the next stage of sampling, resulting in unclear stratification. When the soil is drilled or lifted, when encountering relatively high humidity or loose texture, it is easy to collapse or slide, causing the upper soil sample to infiltrate into the lower layer, affecting the representativeness of the sample and the accuracy of the analysis results.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A soil detection sampling device, comprising: a sampling cylinder, the outer surface of the sampling cylinder is provided with a thread groove, and further comprising: A crushing blade, arranged at the bottom of the sampling cylinder, and a moving frame is arranged on the outer surface of the sampling cylinder; A limiting column, arranged on the outer surface of the moving frame, and a lifting plate is arranged on the outer surface of the limiting column; A second threaded rod, arranged on the inner wall of the lifting plate, and a first motor is arranged on the outer surface of the lifting plate; A second motor, arranged on the outer surface of the moving frame, and a control panel is arranged on the outer surface of the moving frame.

[0007] Preferably, a power supply box is arranged on the outer surface of the moving frame, the power supply box is electrically connected to the control panel, the power supply box is respectively electrically connected to the first motor and the second motor, the output end of the first motor is arranged on the outer surface of the sampling cylinder, the output end of the second motor is arranged on the outer surface of the second threaded rod, and a plurality of universal wheels are arranged on the outer surface of the moving frame.

[0008] The technical effect of adopting the above further solution is: During use, the initial state of the limit pin does not contact the limit shaft classification. When controlling the first motor to work, it drives the sampling cylinder to rotate. When the sampling cylinder rotates, it drives the thread groove and the crushing blade to rotate, facilitating the crushing of hard objects in the soil. The thread groove gradually penetrates into the soil like a screw, reducing the required vertical pressure and effectively reducing the direct friction with the soil. When the sampling cylinder rotates, it drives the limit shaft and the movable block to rotate. When controlling the second motor to work, it drives the second threaded rod to rotate forward. The staff holds the crossbar at the top of the moving frame and uses the universal wheels to move the moving frame to the area to be sampled.

[0009] Preferably, a plurality of first electric push rods are arranged on the outer surface of the moving frame, the plurality of first electric push rods are electrically connected to the power supply box, the output ends of the plurality of first electric push rods are all provided with tapered rods, an installation frame is arranged on the outer surface of the moving frame, the inner wall of the installation frame is arranged on the outer surface of the second threaded rod, and the inner wall of the installation frame is arranged on the outer surface of the limiting column.

[0010] The technical effect of adopting the above further solution is that the staff controls a plurality of electric push rods I to work through the control panel to drive a plurality of conical rods to insert into the ground, which is convenient for fixing the moving frame and improving the stability of subsequent soil sampling work.

[0011] Preferably, an electric push rod II is arranged on the outer surface of the mounting frame. The electric push rod II is electrically connected to the power supply box. A moving plate is arranged at the output end of the electric push rod II. A transverse moving frame is arranged on the outer surface of the moving plate. Two groups of mounting barrels are arranged on the outer surface of the transverse moving frame. Magnets II are arranged on the inner walls of the two groups of mounting barrels.

[0012] The technical effect of adopting the above further solution is that the staff controls the electric push rod II through the control panel to drive the moving plate, the transverse moving frame and the mounting barrel to move horizontally. When the mounting barrel moves, it pushes the soil in the movable block and the sampling cylinder. Under the adsorption of the magnet II, the movable block will not fall off.

[0013] Preferably, movable blocks are arranged on the outer surfaces of the two groups of magnets II. The outer surfaces of the two groups of movable blocks are arranged on the inner wall of the sampling cylinder. Limiting shafts are arranged on the inner walls of the two groups of movable blocks. The outer surfaces of the two limiting shafts are arranged on the inner wall of the sampling cylinder. The opposite ends of the two groups of mounting barrels are matched with the outer surfaces of the two groups of movable blocks. A limiting frame is arranged on the outer surface of the moving frame.

[0014] The technical effect of adopting the above further solution is that the limiting pin is moved on the limiting frame to the limiting shaft, so that the limiting pin restricts the limiting shaft. Then, the limiting shaft is pulled outwards from the sampling cylinder, so that the limiting shaft passes through the lifting plate. After the limiting shaft is pulled out four-fifths from the sampling cylinder, it stops. At this time, the mounting barrel, the magnet II and the movable block are aligned, and the movable block is no longer restricted by the limiting shaft.

[0015] Preferably, a limiting pin is arranged on the outer surface of the limiting frame. The outer surface of the limiting pin is in sliding contact with the outer surface of the limiting shaft. A plurality of lifting boxes are arranged on the inner wall of one of the mounting barrels. Films are arranged on the inner walls of the plurality of lifting boxes. A motor III is arranged on the outer surface of the transverse moving frame. The motor III is electrically connected to the power supply box.

[0016] The technical effect of adopting the above further solution is that the film is arranged on the top of the lifting box, which is convenient for preventing external sundries from entering the interior of the lifting box. The motor III is fixed on the outer surface of the transverse moving frame, which is convenient for enhancing the stability of the motor III.

[0017] Preferably, a plurality of first worms are provided on the inner wall of the transverse moving frame. Two transmission shafts are provided on the outer surfaces of the plurality of first worms. The outer surface of one of the first worms is provided at the output end of the third motor. A plurality of first worm wheels are provided on the outer surfaces of the plurality of first worms. A rotating shaft is provided on the inner wall of each of the plurality of first worm wheels. The outer surfaces of the plurality of rotating shafts are respectively provided on the inner walls of a plurality of mounting barrels.

[0018] The technical effect of adopting the above further scheme is that after one group of mounting barrels completely enter the sampling cylinder, when the third motor is controlled to work, it drives the first worm, the transmission shaft and the first worm wheel to rotate. When the first worm wheel rotates, it drives the rotating shaft, the second worm and the second worm wheel to rotate.

[0019] Preferably, the other ends of the plurality of rotating shafts are respectively provided with second worms. The outer surfaces of the plurality of second worms are respectively provided on the inner walls of a plurality of mounting barrels. A plurality of second worm wheels are provided on the outer surfaces of the plurality of second worms. A first threaded rod is provided on the inner wall of each of the plurality of second worm wheels. The other ends of the plurality of first threaded rods are respectively provided with fixing plates. The outer surfaces of the plurality of fixing plates are respectively provided on the inner walls of a plurality of mounting barrels.

[0020] The technical effect of adopting the above further scheme is that when the second worm wheel rotates, it drives the first threaded rod to rotate in the fixing plate. When the first threaded rod rotates, it drives the pushing frame to move vertically in the fixing plate.

[0021] Preferably, a pushing frame is provided on the inner wall of each of the plurality of fixing plates. The inner walls of the plurality of pushing frames are respectively provided on the outer surfaces of a plurality of first threaded rods. A first magnet is provided on the outer surface of each of the plurality of pushing frames. A iron sheet is provided on the outer surface of each of the first magnets. The outer surfaces of the plurality of iron sheets are respectively provided on the inner walls of a plurality of lifting boxes.

[0022] The technical effect of adopting the above further scheme is that when the pushing frame moves, it drives the first magnet, the lifting box and the film into the soil inside the sampling cylinder. After the film is separated from the inner wall of the lifting box under the extrusion of the soil, it is extruded to the bottom of the lifting box, and the soil is embedded into the lifting box during this process.

[0023] The present invention also provides a sampling method for a soil detection sampling device, and the using method is as follows: Step 1: The staff holds the crossbar at the top of the mobile frame by hand. After moving the mobile frame to the area to be sampled using the universal wheels, the staff controls multiple electric push rods I to work through the control panel, driving multiple conical rods to insert into the ground. When controlling the first motor to work, it drives the sampling cylinder to rotate. When the sampling cylinder rotates, it drives the thread groove and the crushing blade to rotate. When controlling the second motor to work, it drives the second threaded rod to rotate forward. When the second threaded rod rotates, it drives the lifting plate to move towards the ground direction on the limiting column. When the lifting plate moves, it drives the first motor and the sampling cylinder to move towards the ground. After the outer surface of the lifting plate contacts the outer surface of the mounting frame, control the first motor to stop working. At the same time, control the second motor to drive the second threaded rod to rotate in the reverse direction to drive the sampling cylinder to return to its original position; Step 2: The staff manually rotates the limiting shaft on the sampling cylinder to the same axis as the limiting pin, moves the limiting pin on the limiting frame to the limiting shaft, so that the limiting pin restricts the limiting shaft. Then, pull the limiting shaft outwards from the sampling cylinder, so that the limiting shaft passes through the lifting plate. Stop after pulling out four-fifths of the limiting shaft from the sampling cylinder. Control the second electric push rod to drive the moving plate, the transverse moving frame and the mounting barrel to move horizontally. When the mounting barrel moves, it pushes the movable block and the soil in the sampling cylinder; Step 3: After one group of mounting barrels completely enter the sampling cylinder, control the third motor to work, driving the first worm, the transmission shaft and the first worm gear to rotate. When the first worm gear rotates, it drives the rotating shaft, the second worm and the second worm gear to rotate. When the second worm gear rotates, it drives the first threaded rod to rotate in the fixed plate. When the first threaded rod rotates, it drives the pushing frame to move vertically in the fixed plate. When the pushing frame moves, it drives the first magnet, the lifting box and the thin film to enter the soil inside the sampling cylinder. After the thin film is separated from the inner wall of the lifting box under the extrusion of the soil, it is extruded to the bottom of the lifting box. The soil is embedded in the lifting box during this process. Subsequently, the third motor works in the reverse direction to drive the pushing frame and the lifting box to return to their original positions. Control the output end of the second electric push rod to contract to drive the mounting barrel to be pulled out of the sampling cylinder and return the movable block to its original position. Then, control the third motor to push the lifting box out of the mounting barrel. After the staff takes away the lifting box, a new lifting box is placed.

[0024] Compared with the prior art, the advantages and positive effects of the present invention are as follows. When the present invention is in use, when the first threaded rod rotates, it drives the pushing frame to move vertically in the fixed plate. When the pushing frame moves, it drives the first magnet, the lifting box and the thin film to enter the soil inside the sampling cylinder. After the thin film is separated from the inner wall of the lifting box under the extrusion of the soil, it is extruded to the bottom of the lifting box. The soil is embedded in the lifting box during this process. By taking soil samples at different heights inside the sampling cylinder, it is beneficial to improve the representativeness of the soil sample and the accuracy of the analysis result through the stability during the sampling process.

[0025] When the present invention is in use, the rotation of the sampling cylinder drives the threaded groove and the crushing blade to rotate, facilitating the crushing of hard objects in the soil. The threaded groove gradually penetrates into the soil like a screw, reducing the required vertical pressure, effectively reducing the direct friction with the soil, and at the same time reducing the damage to the soil inside the sampling cylinder when the sampling cylinder penetrates deep into the soil, improving the integrity of the soil inside the sampling cylinder, and being beneficial to avoiding the situation where the soil layer is not clearly stratified and the upper soil infiltrates into the lower layer due to collapse or sliding.

[0026] When the present invention is in use, after one set of installation barrels completely enter the sampling cylinder, the lifting box is located in the middle area of the sampling cylinder, so that the soil sample obtained by the lifting box is the soil in the middle area of the sampling cylinder, which is beneficial to avoiding obtaining the soil on the inner wall of the sampling cylinder, further reducing the situation where the upper soil and the lower soil are not clearly stratified, and at the same time using the friction between the inner wall of the sampling cylinder and the soil to facilitate reducing the situation of soil collapse inside the sampling cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a soil detection sampling device and a sampling method provided by the present invention; Figure 2 is a bottom view structural diagram of a soil detection sampling device and a sampling method provided by the present invention; Figure 3 is a cross-sectional structural diagram of a transverse moving frame of a soil detection sampling device and a sampling method provided by the present invention; Figure 4 is a structural diagram of a transverse moving frame of a soil detection sampling device and a sampling method provided by the present invention; Figure 5 is a cross-sectional structural diagram of a sampling cylinder of a soil detection sampling device and a sampling method provided by the present invention; Figure 6 is a structural diagram of an iron sheet of a soil detection sampling device and a sampling method provided by the present invention; Figure 7 is a soil detection sampling device and a sampling method provided by the present invention Figure 5 magnified view of part A; Figure 8 is a soil detection sampling device and a sampling method provided by the present invention Figure 5 magnified view of part B.

[0028] Legend: 1. Sampling cylinder; 101. Threaded groove; 102. Crushing blade; 103. Motor 1; 104. Limiting shaft; 105. Movable block; 106. Limiting frame; 2. Moving frame; 201. Universal wheel; 202. Electric push rod 1; 203. Tapered rod; 204. Mounting frame; 205. Electric push rod 2; 206. Moving plate; 207. Transverse moving frame; 208. Mounting barrel; 209. Lifting box; 210. Film; 211. Motor 3; 212. Transmission shaft; 213. Worm 1; 214. Worm gear 1; 215. Rotating shaft; 216. Worm 2; 217. Worm gear 2; 218. Threaded rod 1; 219. Pushing frame; 220. Fixed plate; 221. Magnet 1; 222. Iron sheet; 3. Limiting column; 4. Lifting plate; 5. Threaded rod 2; 6. Limiting pin; 7. Motor 2; 8. Control panel; 9. Magnet 2; 10. Power supply box. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0030] Embodiment 1, as Figures 1-8 shown, the present invention provides a technical solution: a soil detection sampling device, including: a sampling cylinder 1, the outer surface of the sampling cylinder 1 is provided with a threaded groove 101, and further includes: A crushing blade 102, arranged at the bottom of the sampling cylinder 1, and a moving frame 2 is arranged on the outer surface of the sampling cylinder 1; A limiting column 3, arranged on the outer surface of the moving frame 2, and a lifting plate 4 is arranged on the outer surface of the limiting column 3; A threaded rod 2 5, arranged on the inner wall of the lifting plate 4, and a motor 1 103 is arranged on the outer surface of the lifting plate 4; A motor 2 7, arranged on the outer surface of the moving frame 2, and a control panel 8 is arranged on the outer surface of the moving frame 2.

[0031] In one embodiment, when in use, the initial state of the limiting pin 6 is not in contact with the limiting shaft 104. When controlling the motor 1 103 to work, it drives the sampling cylinder 1 to rotate. When the sampling cylinder 1 rotates, it drives the threaded groove 101 and the crushing blade 102 to rotate, which is convenient for crushing hard objects in the soil. The threaded groove 101 gradually penetrates into the soil like a screw, reducing the required vertical pressure and effectively reducing the direct friction with the soil. When the sampling cylinder 1 rotates, it drives the limiting shaft 104 and the movable block 105 to rotate. When controlling the motor 2 7 to work, it drives the threaded rod 2 5 to rotate forward.

[0032] Example 2, as Figures 1-8 shown, a power supply box 10 is provided on the outer surface of the moving frame 2. The power supply box 10 is electrically connected to the control panel 8. The power supply box 10 is respectively electrically connected to the first motor 103 and the second motor 7. The output end of the first motor 103 is provided on the outer surface of the sampling cylinder 1. The output end of the second motor 7 is provided on the outer surface of the second threaded rod 5. A plurality of universal wheels 201 are provided on the outer surface of the moving frame 2. A plurality of first electric push rods 202 are provided on the outer surface of the moving frame 2. The plurality of first electric push rods 202 are electrically connected to the power supply box 10. The output ends of the plurality of first electric push rods 202 are all provided with tapered rods 203. An installation frame 204 is provided on the outer surface of the moving frame 2. The inner wall of the installation frame 204 is provided on the outer surface of the second threaded rod 5. The inner wall of the installation frame 204 is provided on the outer surface of the limit post 3. A second electric push rod 205 is provided on the outer surface of the installation frame 204. The second electric push rod 205 is electrically connected to the power supply box 10. The output end of the second electric push rod 205 is provided with a moving plate 206. A transverse moving frame 207 is provided on the outer surface of the moving plate 206. Two groups of installation barrels 208 are provided on the outer surface of the transverse moving frame 207. Magnets II 9 are provided on the inner walls of the two groups of installation barrels 208. Movable blocks 105 are provided on the outer surfaces of the two groups of magnets II 9. The outer surfaces of the two groups of movable blocks 105 are provided on the inner wall of the sampling cylinder 1. Limit shafts 104 are provided on the inner walls of the two groups of movable blocks 105. The outer surfaces of the two limit shafts 104 are provided on the inner wall of the sampling cylinder 1. The opposite ends of the two groups of installation barrels 208 are matched with the outer surfaces of the two groups of movable blocks 105. A limit frame 106 is provided on the outer surface of the moving frame 2.

[0033] In one embodiment, during use, the power supply box 10 supplies power to the first electric push rod 202, the second electric push rod 205, the first motor 103, the second motor 7, the control panel 8 and the third motor 211. At the same time, the control panel 8 controls the first electric push rod 202, the second electric push rod 205, the first motor 103, the second motor 7 and the third motor 211. The staff holds the cross bar at the top of the moving frame 2 by hand and uses the universal wheels 201 to move the moving frame 2 to the area to be sampled. Then, the staff controls the plurality of first electric push rods 202 to work through the control panel 8 to drive the plurality of tapered rods 203 to insert into the ground, which is convenient for fixing the moving frame 2 and improving the stability of the subsequent soil sampling work. When the second threaded rod 5 rotates, it drives the lifting plate 4 to move towards the ground direction on the limit post 3. When the lifting plate 4 moves, it drives the first motor 103 and the sampling cylinder 1 to move towards the ground, so that the sampling cylinder 1 rotates and penetrates into the ground. After the outer surface of the lifting plate 4 contacts the outer surface of the installation frame 204, control the first motor 103 to stop working, and at the same time control the second motor 7 to drive the second threaded rod 5 to rotate in the reverse direction to drive the sampling cylinder 1 to return to its original position.

[0034] Example 3, as Figures 1-8As shown, a limit pin 6 is provided on the outer surface of the limit frame 106. The outer surface of the limit pin 6 is in sliding contact with the outer surface of the limit shaft 104. A plurality of lifting boxes 209 are provided on the inner wall of one set of mounting barrels 208. A film 210 is provided on the inner wall of each of the plurality of lifting boxes 209. A third motor 211 is provided on the outer surface of the transverse movement frame 207. The third motor 211 is electrically connected to the power supply box 10. A plurality of first worms 213 are provided on the inner wall of the transverse movement frame 207. Two transmission shafts 212 are provided on the outer surface of the plurality of first worms 213. The outer surface of one of the first worms 213 is provided at the output end of the third motor 211. A first worm gear 214 is provided on the outer surface of each of the plurality of first worms 213. A rotating shaft 215 is provided on the inner wall of each of the plurality of first worm gears 214. The outer surfaces of the plurality of rotating shafts 215 are respectively provided on the inner walls of the plurality of mounting barrels 208. The other ends of the plurality of rotating shafts 215 are respectively provided with second worms 216. The outer surfaces of the plurality of second worms 216 are respectively provided on the inner walls of the plurality of mounting barrels 208. A second worm gear 217 is provided on the outer surface of each of the plurality of second worms 216. A first threaded rod 218 is provided on the inner wall of each of the plurality of second worm gears 217. The other ends of the plurality of first threaded rods 218 are respectively provided with fixing plates 220. The outer surfaces of the plurality of fixing plates 220 are respectively provided on the inner walls of the plurality of mounting barrels 208. A pushing frame 219 is provided on the inner wall of each of the plurality of fixing plates 220. The inner walls of the plurality of pushing frames 219 are respectively provided on the outer surfaces of the plurality of first threaded rods 218. A first magnet 221 is provided on the outer surface of each of the plurality of pushing frames 219. A iron sheet 222 is provided on the outer surface of each of the plurality of first magnets 221. The outer surfaces of the plurality of iron sheets 222 are respectively provided on the inner walls of the plurality of lifting boxes 209.

[0035] In one embodiment, during use, after the power of the first motor 103 is cut off, its output end can rotate. The staff manually rotates the limit shaft 104 on the sampling cylinder 1 to the same axis as the limit pin 6, moves the limit pin 6 on the limit frame 106 to the position of the limit shaft 104, so that the limit pin 6 restricts the limit shaft 104, and then pulls the limit shaft 104 outwards from the sampling cylinder 1, so that the limit shaft 104 passes through the lifting plate 4. When four-fifths of the limit shaft 104 is pulled out of the sampling cylinder 1, it stops. At this time, the installation barrel 208, the second magnet 9 and the movable block 105 are aligned, and the movable block 105 is no longer restricted by the limit shaft 104. Control the second electric push rod 205 to drive the moving plate 206, the transverse moving frame 207 and the installation barrel 208 to move horizontally. When the installation barrel 208 moves, it pushes the movable block 105 and the soil in the sampling cylinder 1. Under the adsorption of the second magnet 9, the movable block 105 will not fall. After one group of installation barrels 208 completely enter the sampling cylinder 1, control the third motor 211 to drive the first worm 213, the transmission shaft 212 and the first worm gear 214 to rotate. When the first worm gear 214 rotates, it drives the rotating shaft 215, the second worm 216 and the second worm gear 217 to rotate. When the second worm gear 217 rotates, it drives the first threaded rod 218 to rotate in the fixed plate 220. When the first threaded rod 218 rotates, it drives the pushing frame 219 to move vertically in the fixed plate 220. When the pushing frame 219 moves, it drives the first magnet 221, the lifting box 209 and the film 210 into the soil inside the sampling cylinder 1. After the film 210 is separated from the inner wall of the lifting box 209 under the extrusion of the soil, it is extruded to the bottom of the lifting box 209, and the soil is embedded into the lifting box 209 during this process. Then the third motor 211 works in the reverse direction to drive the pushing frame 219 and the lifting box 209 to return to their original positions. The adsorption force of the first magnet 221 on the iron sheet 222 at the bottom of the lifting box 209 during the vertical movement of the lifting box 209 is sufficient to offset the friction force of the soil on the lifting box 209, which is convenient for bringing the lifting box 209 back into the installation barrel 208. Control the output end of the second electric push rod 205 to contract to drive the installation barrel 208 to be pulled out of the sampling cylinder 1, and restore the movable block 105 to its original position. Then insert the limit shaft 104 back into the sampling cylinder 1 to restrict the movable block 105 again, and separate the limit pin 6 from the limit shaft 104.

[0036] The sampling method of a soil detection sampling device according to an embodiment of the present application is as follows: Step 1: The staff holds the crossbar at the top of the mobile frame 2 by hand. After moving the mobile frame 2 to the area to be sampled using the universal wheels 201, the staff controls multiple electric push rods 202 to work through the control panel 8 to drive multiple conical rods 203 to insert into the ground. When controlling the motor 103 to work, it drives the sampling cylinder 1 to rotate. When the sampling cylinder 1 rotates, it drives the thread groove 101 and the crushing blade 102 to rotate. When controlling the motor 7 to work, it drives the second threaded rod 5 to rotate forward. When the second threaded rod 5 rotates, it drives the lifting plate 4 to move towards the ground direction on the limit posts 3. When the lifting plate 4 moves, it drives the motor 103 and the sampling cylinder 1 to move towards the ground. After the outer surface of the lifting plate 4 contacts the outer surface of the mounting frame 204, control the motor 103 to stop working. At the same time, control the motor 7 to drive the second threaded rod 5 to rotate in the reverse direction to drive the sampling cylinder 1 to return to its original position; Step 2: The staff manually rotates the limit shaft 104 on the sampling cylinder 1 to the same axis as the limit pin 6, moves the limit pin 6 on the limit frame 106 to the position of the limit shaft 104, so that the limit pin 6 restricts the limit shaft 104. Then, pull the limit shaft 104 outwards from the sampling cylinder 1, so that the limit shaft 104 passes through the lifting plate 4. Stop after pulling out four-fifths of the limit shaft 104 from the sampling cylinder 1. Control the electric push rod 205 to drive the moving plate 206, the transverse moving frame 207 and the mounting barrel 208 to move horizontally. When the mounting barrel 208 moves, it pushes the movable block 105 and the soil in the sampling cylinder 1; Step 3: After one group of mounting barrels 208 completely enter the sampling cylinder 1, control the motor 211 to work to drive the first worm 213, the transmission shaft 212 and the first worm gear 214 to rotate. When the first worm gear 214 rotates, it drives the rotating shaft 215, the second worm 216 and the second worm gear 217 to rotate. When the second worm gear 217 rotates, it drives the first threaded rod 218 to rotate in the fixed plate 220. When the first threaded rod 218 rotates, it drives the pushing frame 219 to move vertically in the fixed plate 220. When the pushing frame 219 moves, it drives the first magnet 221, the lifting box 209 and the thin film 210 into the soil inside the sampling cylinder 1. After the thin film 210 is separated from the inner wall of the lifting box 209 under the extrusion of the soil, it is squeezed to the bottom of the lifting box 209. The soil is embedded into the lifting box 209 during this process. Subsequently, the motor 211 works in the reverse direction to drive the pushing frame 219 and the lifting box 209 to return to their original positions. Control the output end of the electric push rod 205 to contract to drive the mounting barrel 208 to be pulled out from the sampling cylinder 1 and restore the movable block 105 to its original position. Then, control the motor 211 to push the lifting box 209 to extend out of the mounting barrel 208. After the staff takes away the lifting box 209, put a new lifting box 209.

[0037] Working principle: When in use, the power supply box 10 provides power to the first electric push rod 202, the second electric push rod 205, the first motor 103, the second motor 7, the control panel 8 and the third motor 211. At the same time, the control panel 8 controls the first electric push rod 202, the second electric push rod 205, the first motor 103, the second motor 7 and the third motor 211. The staff holds the crossbar at the top of the moving frame 2 and uses the universal wheels 201 to move the moving frame 2 to the area to be sampled. Then, the staff controls multiple first electric push rods 202 to work through the control panel 8, driving multiple conical rods 203 to insert into the ground, which is convenient for fixing the moving frame 2 and improving the stability of subsequent soil sampling work. When in use, the initial state of the limit pin 6 is not in contact with the limit shaft 104. When controlling the first motor 103 to work, it drives the sampling cylinder 1 to rotate. When the sampling cylinder 1 rotates, it drives the thread groove 101 and the crushing blade 102 to rotate, which is convenient for crushing hard objects in the soil. The thread groove 101 gradually penetrates into the soil like a screw, reducing the required vertical pressure and effectively reducing the direct friction with the soil. When the sampling cylinder 1 rotates, it drives the limit shaft 104 and the movable block 105 to rotate. When controlling the second motor 7 to work, it drives the second threaded rod 5 to rotate forward. When the second threaded rod 5 rotates, it drives the lifting plate 4 to move towards the ground direction on the limit column 3. When the lifting plate 4 moves, it drives the first motor 103 and the sampling cylinder 1 to move towards the ground, so that the sampling cylinder 1 rotates and penetrates into the ground. After the outer surface of the lifting plate 4 contacts the outer surface of the mounting frame 204, control the first motor 103 to stop working. At the same time, control the second motor 7 to drive the second threaded rod 5 to rotate in the reverse direction to drive the sampling cylinder 1 to return to its original position. When in use, after the first motor 103 is powered off, its output end can rotate. The staff manually rotates the limit shaft 104 on the sampling cylinder 1 to the same axis as the limit pin 6, and moves the limit pin 6 on the limit frame 106 to the limit shaft 104, so that the limit pin 6 restricts the limit shaft 104. Then, pull the limit shaft 104 outwards from the sampling cylinder 1, so that the limit shaft 104 passes through the lifting plate 4. Stop when four-fifths of the limit shaft 104 is pulled out of the sampling cylinder 1. At this time, the mounting barrel 208, the second magnet 9 and the movable block 105 are aligned, and the movable block 105 is no longer restricted by the limit shaft 104. Control the second electric push rod 205 to drive the moving plate 206, the transverse moving frame 207 and the mounting barrel 208 to move horizontally. When the mounting barrel 208 moves, it pushes the movable block 105 and the soil in the sampling cylinder 1. Under the adsorption of the second magnet 9, the movable block 105 will not fall. After one group of mounting barrels 208 completely enter the sampling cylinder 1, control the third motor 211 to work, driving the first worm 213, the transmission shaft 212 and the first worm gear 214 to rotate. When the first worm gear 214 rotates, it drives the rotating shaft 215, the second worm 216 and the second worm gear 217 to rotate. When the second worm gear 217 rotates, it drives the first threaded rod 218 to rotate in the fixed plate 220. When the first threaded rod 218 rotates, it drives the pushing frame 219 to move vertically in the fixed plate 220.When the push frame 219 moves, it drives the first magnet 221, the lifting box 209, and the thin film 210 into the soil inside the sampling cylinder 1. After the thin film 210 detaches from the inner wall of the lifting box 209 under the extrusion of the soil, it is extruded to the bottom of the lifting box 209. The soil embeds into the lifting box 209 during this process. Subsequently, the third motor 211 operates in reverse to drive the push frame 219 and the lifting box 209 to return to their original positions. The adsorption force of the first magnet 221 on the iron sheet 222 at the bottom of the lifting box 209 during the vertical movement of the lifting box 209 is sufficient to offset the frictional force of the soil on the lifting box 209, facilitating the return of the lifting box 209 to the installation barrel 208. Control the output end of the second electric push rod 205 to contract, drive the installation barrel 208 to be withdrawn from the sampling cylinder 1, and restore the movable block 105 to its original position. Then, insert the limit shaft 104 back into the sampling cylinder 1 to limit the movable block 105 again, and separate the limit pin 6 from the limit shaft 104.

[0038] The above is only a preferred embodiment of the present invention and is not a limitation of the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A soil detection sampling device, comprising: Sampling cylinder (1), the outer surface of the sampling cylinder (1) is provided with a thread groove (101), and it is characterized in that it further includes: Crushing blade (102), arranged at the bottom of the sampling cylinder (1), and a moving frame (2) is arranged on the outer surface of the sampling cylinder (1); Limit column (3), arranged on the outer surface of the moving frame (2), and a lifting plate (4) is arranged on the outer surface of the limit column (3); Second threaded rod (5), arranged on the inner wall of the lifting plate (4), and a first motor (103) is arranged on the outer surface of the lifting plate (4); Second motor (7), arranged on the outer surface of the moving frame (2), and a control panel (8) is arranged on the outer surface of the moving frame (2).

2. The soil detection sampling device according to claim 1, characterized in that: A power supply box (10) is arranged on the outer surface of the moving frame (2), the power supply box (10) is electrically connected to the control panel (8), the power supply box (10) is respectively electrically connected to the first motor (103) and the second motor (7), the output end of the first motor (103) is arranged on the outer surface of the sampling cylinder (1), the output end of the second motor (7) is arranged on the outer surface of the second threaded rod (5), and a plurality of universal wheels (201) are arranged on the outer surface of the moving frame (2).

3. The soil detection sampling device according to claim 2, characterized in that: A plurality of first electric push rods (202) are arranged on the outer surface of the moving frame (2), the plurality of first electric push rods (202) are electrically connected to the power supply box (10), the output ends of the plurality of first electric push rods (202) are all provided with tapered rods (203), an installation frame (204) is arranged on the outer surface of the moving frame (2), the inner wall of the installation frame (204) is arranged on the outer surface of the second threaded rod (5), and the inner wall of the installation frame (204) is arranged on the outer surface of the limit column (3).

4. A soil detection sampling device according to claim 3, characterized in that: A second electric push rod (205) is arranged on the outer surface of the installation frame (204), the second electric push rod (205) is electrically connected to the power supply box (10), the output end of the second electric push rod (205) is provided with a moving plate (206), a transverse moving frame (207) is arranged on the outer surface of the moving plate (206), two groups of installation barrels (208) are arranged on the outer surface of the transverse moving frame (207), and two groups of magnets two (9) are arranged on the inner walls of the two groups of installation barrels (208).

5. The soil detection sampling device according to claim 4, wherein: Two groups of magnets two (9) are provided with movable blocks (105) on their outer surfaces, the two groups of movable blocks (105) are arranged on the inner wall of the sampling cylinder (1), the two groups of movable blocks (105) are provided with limit shafts (104) on their inner walls, the two limit shafts (104) are arranged on the inner wall of the sampling cylinder (1), the opposite ends of the two groups of installation barrels (208) are matched with the outer surfaces of the two groups of movable blocks (105), and a limit frame (106) is arranged on the outer surface of the moving frame (2).

6. The soil detection sampling device according to claim 5, characterized in that: A limit pin (6) is provided on the outer surface of the limit frame (106), and the outer surface of the limit pin (6) is in sliding contact with the outer surface of the limit shaft (104). A plurality of lifting boxes (209) are provided on the inner wall of one set of the mounting barrels (208), and a film (210) is provided on the inner wall of each of the plurality of lifting boxes (209). A third motor (211) is provided on the outer surface of the transverse movement frame (207), and the third motor (211) is electrically connected to the power supply box (10).

7. The soil detection sampling device according to claim 6, characterized in that: A plurality of first worms (213) are provided on the inner wall of the transverse movement frame (207), and two transmission shafts (212) are provided on the outer surfaces of the plurality of first worms (213). The outer surface of one of the first worms (213) is provided at the output end of the third motor (211). A first worm gear (214) is provided on the outer surface of each of the plurality of first worms (213), and a rotating shaft (215) is provided on the inner wall of each of the plurality of first worm gears (214). The outer surfaces of the plurality of rotating shafts (215) are respectively provided on the inner walls of the plurality of mounting barrels (208).

8. The soil detection sampling device according to claim 7, wherein: The other ends of the plurality of rotating shafts (215) are respectively provided with second worms (216), the outer surfaces of the plurality of second worms (216) are respectively provided on the inner walls of the plurality of mounting barrels (208), a second worm gear (217) is provided on the outer surface of each of the plurality of second worms (216), a first threaded rod (218) is provided on the inner wall of each of the plurality of second worm gears (217), the other ends of the plurality of first threaded rods (218) are respectively provided with fixing plates (220), and the outer surfaces of the plurality of fixing plates (220) are respectively provided on the inner walls of the plurality of mounting barrels (208).

9. The soil detection sampling device according to claim 8, characterized in that: A pushing frame (219) is provided on the inner wall of each of the plurality of fixing plates (220), the inner walls of the plurality of pushing frames (219) are respectively provided on the outer surfaces of the plurality of first threaded rods (218), a first magnet (221) is provided on the outer surface of each of the plurality of pushing frames (219), a iron sheet (222) is provided on the outer surface of each of the plurality of first magnets (221), and the outer surfaces of the plurality of iron sheets (222) are respectively provided on the inner walls of the plurality of lifting boxes (209).

10. A sampling method for a soil detection sampling device, based on the soil detection sampling device according to any one of claims 1-9, characterized in that: Step 1, the staff holds the crossbar at the top of the mobile frame (2) by hand. After moving the mobile frame (2) to the area to be sampled by using the universal wheels (201), the staff controls multiple electric push rods one (202) to work through the control panel (8) to drive multiple conical rods (203) to insert into the ground. When controlling the first motor (103) to work, it drives the sampling cylinder (1) to rotate. When the sampling cylinder (1) rotates, it drives the thread groove (101) and the crushing blade (102) to rotate. When controlling the second motor (7) to work, it drives the second threaded rod (5) to rotate forward. When the second threaded rod (5) rotates, it drives the lifting plate (4) to move towards the ground direction on the limit post (3). When the lifting plate (4) moves, it drives the first motor (103) and the sampling cylinder (1) to move towards the ground. After the outer surface of the lifting plate (4) contacts the outer surface of the mounting frame (204), control the first motor (103) to stop working. At the same time, control the second motor (7) to drive the second threaded rod (5) to rotate in the reverse direction to drive the sampling cylinder (1) to return to its original position; Step 2, the staff manually rotates the limit shaft (104) on the sampling cylinder (1) to the same axis as the limit pin (6), moves the limit pin (6) on the limit frame (106) to the position of the limit shaft (104) so that the limit pin (6) restricts the limit shaft (104), and then pulls the limit shaft (104) outwards from the sampling cylinder (1) so that the limit shaft (104) passes through the lifting plate (4). Stop after the limit shaft (104) is pulled out four-fifths from the sampling cylinder (1). Control the electric push rod two (205) to drive the moving plate (206), the transverse moving frame (207) and the mounting barrel (208) to move horizontally. When the mounting barrel (208) moves, it pushes the movable block (105) and the soil in the sampling cylinder (1); Step 3: After one set of installation barrels (208) completely enter the inside of the sampling cylinder (1), when controlling the operation of the third motor (211), the first worm (213), the transmission shaft (212) and the first worm gear (214) are driven to rotate. When the first worm gear (214) rotates, the rotating shaft (215), the second worm (216) and the second worm gear (217) are driven to rotate. When the second worm gear (217) rotates, the first threaded rod (218) is driven to rotate within the fixed plate (220). When the first threaded rod (218) rotates, the pushing frame (219) is driven to move vertically within the fixed plate (220). When the pushing frame (219) moves, the first magnet (221), the lifting box (209) and the film (210) are driven into the soil inside the sampling cylinder (1). After the film (210) detaches from the inner wall of the lifting box (209) under the extrusion of the soil, it is extruded to the bottom of the lifting box (209), and the soil is embedded into the lifting box (209) during this process. Subsequently, the third motor (211) operates in the reverse direction to drive the pushing frame (219) and the lifting box (209) to return to their original positions. Control the output end of the second electric push rod (205) to contract to drive the installation barrel (208) to be withdrawn from the sampling cylinder (1), and restore the movable block (105) to its original position. Then control the third motor (211) to push the lifting box (209) to extend out of the installation barrel (208). After the staff takes away the lifting box (209), a new lifting box (209) is placed in it.

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