A highly adaptable soil sampling device for stratified sampling

Abstract

The invention discloses a highly adaptable soil sampling device for stratified sampling, which belongs to the technical field of soil sampling, and comprises a hanger and a rotary drive unit, wherein a rotary control unit is installed at the rear side of the rotary drive unit. In the invention, through the designed sampling mechanism, after the sampling is completed, the pulling rope is driven to move by the movement of the pull plate, and the pulling rope can pull the slide rail seat on the other side to move after moving outside the force roller, and after the slide rail seats on both sides move away from each other, the cutting rope in the slide rail seat can be unfolded from the internal winding roller, and the fully unfolded cutting rope is driven to cut the soil in the current sampling ring knife through the continuous movement of the slide rail seat, and the cutting rope can maintain horizontal stability through the movement of the slide rail seat on the sampling disc to maintain the flatness of the cutting surface, facilitate the integrity of the soil sample retained in the sampling ring knife through cutting, and facilitate the demoulding of the independent sampling ring knife, thereby improving the stability and adaptability of stratified sampling.

Description

Technical Field

[0001] The invention belongs to the technical field of soil sampling, and in particular relates to a highly adaptable soil sampling device for stratified sampling. Background Art

[0002] When conducting soil quality surveys, collecting a large number of soil samples is an essential step. Traditional soil sampling devices are generally soil drills. Although this device can effectively collect soil samples, it is very time-consuming and labor-intensive to use, and has the problem of poor sampling adaptability.

[0003] The Chinese invention patent with the publication number of CN117109975B discloses a soil stratification sampling device, which belongs to the field of soil detection technology. The soil stratification sampling device includes an unlocker and a car plate, the upper surface of the car plate is fixedly connected with a drill driving mechanism, the lower surface of the car plate is rotatably connected with a rotating frame, both ends of the car plate are fixedly connected with handles, both sides of the car plate are rotatably connected with a pair of wheels, both sides of the car plate are fixedly connected with a support plate, a threaded rod is threaded through the support plate, the upper end of the threaded rod is fixedly connected with a handwheel, the lower end of the threaded rod is fixedly connected with a cone head, and a first through hole is opened on the upper surface of the car plate. This scheme can improve the efficiency of soil stratification sampling through the use of a rotating frame, a drill driving mechanism and a sampling drill bit, but in actual use, when the soil is stratified, due to the adhesion of the soil, when sampling samples in the same drill bit, it is easy to cause increased adhesion or vacancy at the bottom of the sample during stratification, so there is room for improvement. Summary of the invention

[0004] The purpose of the present invention is to propose a highly adaptable soil sampling device for stratified sampling in order to solve the problem that when sampling samples in the same drill bit during soil stratification, the adhesion of the soil may easily lead to increased adhesion or vacancy at the bottom of the sample during stratification.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A highly adaptable soil sampling device for layered sampling comprises a hanging frame and a rotating driving part, a rotating control part is installed at the rear side of the rotating driving part, a fixing part is connected to the bottom of the rotating control part through a lifting column, and a moving plate is connected to the bottom of the fixing part, and the bottom of the moving plate is rotatably connected to the top of the hanging frame through an angle adjustment mechanism;

[0007] A knife holder is installed on the rotating shaft at the bottom of the rotating drive part, and a plurality of sampling ring knives detachably connected to each other are arranged at the bottom of the knife holder. A sampling mechanism is arranged at the bottom of the sampling ring knife, and the sampling mechanism includes a sampling disk, and the sampling disk is connected to the bottom of the sampling ring knife at a corresponding position. The inner cavity of the sampling disk is slidably connected to two slide rail seats that can be separated from each other, and a cutting rope is rotatably connected between the inner cavities of the slide rail seats on both sides. The cutting rope is pulled by moving the slide rail seat to cut the sample at the bottom of the sampling ring knife, and the multiple detachable sampling ring knives are disassembled in sequence for separation and sampling.

[0008] As a further description of the above technical solution:

[0009] A traction rope is connected to the side of the slide rail seat away from the cutting rope, and a fixed seat is connected to the other side of the inner cavity of the sample dividing disk corresponding to the slide rail seat. A force roller is rotatably connected to the top of the fixed seat. The traction rope extends to the other side of the sample dividing disk, is wound around the outside of the force roller and extends to the outside of the sample dividing disk, and a pulling plate is connected between the traction ropes on both sides. The cutting rope is unfolded away from each other through the slide rail seat to cut the soil sample.

[0010] As a further description of the above technical solution:

[0011] A return spring is provided on the outside of the traction rope, one end of the return spring is connected to one side of the slide rail seat, and the other side of the return spring extends to the side of the fixed seat at the corresponding position. A receiving roller is rotatably connected to the top of the slide rail seat, and the traction rope is wrapped around the outside of the receiving roller. A rewinding bearing is rotatably connected to the inner cavity of the slide rail seat, and the rewinding bearing is connected to the cutting rope through a wire roller, and the cutting rope is passed through a through groove opened at the top of the slide rail seat.

[0012] As a further description of the above technical solution:

[0013] The sampling ring cutter is connected with a first threaded connection part and a second threaded connection part on both sides respectively, and adjacent sampling ring cutters are detachably connected through the first threaded connection part and the second threaded connection part in sequence, and the first threaded connection part and the second threaded connection part are provided with sample insertion openings at positions corresponding to the sample dividing disk.

[0014] As a further description of the above technical solution:

[0015] The sampling ring knife is connected to a force-bearing sleeve on the outside, and a plurality of force-bearing plates are arranged around the outer circumference of the force-bearing sleeve. The force-bearing sleeve is rotatably connected to the outside, and an elastic force-applying plate is connected to the inner side of the rotating sleeve. The elastic force-applying plate is driven by the rotation of the rotating sleeve to knock the force-bearing plate to remove the sample.

[0016] As a further description of the above technical solution:

[0017] The angle adjustment mechanism includes a track groove, a moving seat is connected to the bottom of the track groove, the moving seat is slidably connected to the groove body opened at the top of the hanger, the inner cavity of the track groove is slidably connected to the slide block, the top of the slide block is connected to the bottom of the moving disk, and the sampling area is adjusted by moving the slide block at the bottom of the moving disk in the track groove.

[0018] As a further description of the above technical solution:

[0019] Sliding holes are provided on both sides of the top of the movable disk, and sliding rods are slidably connected in the sliding holes, and a movable plate is connected between the top ends of the sliding rods on both sides, and a limiting wheel is connected to the bottom end of the sliding rod. There are multiple limiting teeth along the track travel array on both sides of the inner cavity of the track groove, and the rotation of the movable disk is limited by the engagement of the limiting wheel with the limiting teeth on both sides.

[0020] As a further description of the above technical solution:

[0021] A first spring is sleeved on the outer wall of the slide rod, and two ends of the first spring are respectively connected to corresponding positions on one side of the moving plate and the moving disk.

[0022] As a further description of the above technical solution:

[0023] One side of the moving seat is connected to an electric push rod, and the other end of the electric push rod is connected to a corresponding position on one side of the inner cavity of the tank body.

[0024] As a further description of the above technical solution:

[0025] The rotation control unit comprises a control console, which is connected to the top of the lifting column, and the other side of the control console is rotatably connected to a rotating frame, and the other side of the rotating frame is rotatably connected to one side of the rotation driving unit.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. In the present invention, through the designed sampling mechanism, when multiple sampling ring knives are threadedly connected through the adjacent first threaded connection part and the second threaded connection part, the sampling ring knife at the bottom can be connected to another sampling knife, so as to rotate downward to sample by the rotation of the rotating driving part, and when the lifting column moves to drive the rotating driving part to move into the soil, after the sampling is completed, the sampling ring knife is driven to move upward by resetting upward. After the sampling is completed, the traction rope is driven to move by the movement of the pull plate, and the traction rope can pull the slide rail seat on the other side to move after moving outside the force roller. After the slide rail seats on both sides move away from each other, the cutting rope in the slide rail seat can be unfolded from the internal winding roller, and the fully unfolded cutting rope is driven by the continuous movement of the slide rail seat to cut the soil in the current sampling ring knife. The cutting rope can maintain horizontal stability through the movement of the slide rail seat on the sampling disk to maintain the flatness of the cutting surface, so as to facilitate the integrity of the soil sample retained in the sampling ring knife through cutting, and facilitate the demoulding of the independent sampling ring knife, thereby improving the stability and adaptability of stratified sampling.

[0028] 2. In the present invention, through the designed angle adjustment mechanism, the electric push rod is extended to drive the moving seat to move, and the movement of the moving seat can drive the top track groove to move. By adjusting the relative distance of the front rotating drive unit, the sampling area can be conveniently adjusted, and the moving plate is pulled to move upward. The moving plate can drive the slide bar and the bottom limiting wheel to move upward. After the limiting wheel moves upward and separates from the limiting teeth on both sides, it can be pulled The moving disk can rotate in the track groove through the bottom slide block, and the range of circumferential sampling can be adjusted through the arc rotation of the slide block and the moving disk around the track groove, thereby improving the sampling adaptability. The front rotating drive unit can rotate around the rotating frame to switch the vertical sampling to the horizontal sampling, thereby improving the sampling adaptability.

[0029] 3. In the present invention, through the designed rotating sleeve and force sleeve, when a single sampling ring cutter is disassembled, it can be moved by rotating the external rotating sleeve. The movement of the rotating sleeve can drive the inner force plate to knock the force plate. The force plate can transmit the rotational knocking force to the inner sampling ring cutter, thereby reducing the adhesion of the soil sample in the sampling ring cutter due to vibration, thereby improving the sampling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of a highly adaptable soil sampling device for stratified sampling proposed by the present invention;

[0031] Figure 2 A schematic diagram of the disassembled structure of a highly adaptable soil sampling device for stratified sampling proposed by the present invention;

[0032] Figure 3 A schematic diagram of the lateral structure of a highly adaptable soil sampling device for stratified sampling proposed by the present invention;

[0033] Figure 4 A schematic diagram of the assembly structure of a sampling mechanism of a highly adaptable soil sampling device for stratified sampling proposed by the present invention;

[0034] Figure 5 The present invention proposes Figure 4 The enlarged structural diagram of part A in the middle;

[0035] Figure 6 The present invention proposes Figure 4 The enlarged structural diagram of part B in the middle;

[0036] Figure 7 A schematic diagram of the split structure of a force-bearing sleeve of a highly adaptable soil sampling device for layered sampling proposed by the present invention;

[0037] Figure 8 A schematic diagram of the lateral assembly structure of a sampling mechanism of a highly adaptable soil sampling device for stratified sampling proposed by the present invention;

[0038] Fig. 9 This is a schematic diagram of the lateral structure of the first threaded connection part of a highly adaptable soil sampling device for layered sampling proposed by the present invention.

[0039] Legend:

[0040] 1. Hanging rack; 2. Angle adjustment mechanism; 201. Track groove; 202. Moving seat; 203. Electric push rod; 204. Limiting tooth; 205. Moving plate; 206. First spring; 207. Sliding rod; 208. Limiting wheel; 3. Rotation control unit; 301. Control console; 302. Rotating rack; 4. Rotation drive unit; 5. First threaded connection unit; 6. Sample dividing mechanism; 601. Sample dividing plate; 602. Slide rail seat; 603. Receiving roller; 604. Through groove; 605. Cutting rope; 606. Pulling rope; 607. Resetting spring; 608. Force roller; 609. Fixed seat; 610. Pulling plate; 7. Second threaded connection unit; 8. Rotating sleeve; 9. Force sleeve; 10. Sampling ring knife; 11. Fixing piece; 12. Lifting column; 13. Moving plate; 14. Sample insertion opening; 15. Knife holder. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0042] See also Figure 1-Figure 9The present invention provides a technical solution: a highly adaptable soil sampling device for stratified sampling, comprising a hanger 1 and a rotating driving part 4, a rotating control part 3 is installed at the rear side of the rotating driving part 4, a fixing part 11 is connected to the bottom of the rotating control part 3 through a lifting column 12, and a moving disk 13 is connected to the bottom of the fixing part 11, and the bottom of the moving disk 13 is rotatably connected to the top of the hanger 1 through an angle adjustment mechanism 2;

[0043] The bracket 1 can be mounted on the rear side of a tricycle or a towing vehicle according to sampling needs, and the tricycle can improve the passability of the sampling area;

[0044] A knife holder 15 is installed on the rotating shaft at the bottom of the rotary drive part 4. A plurality of mutually detachably connected sampling ring knives 10 are arranged at the bottom of the knife holder 15. A sampling mechanism 6 is arranged at the bottom of the sampling ring knives 10. The sampling mechanism 6 includes a sampling plate 601. The sampling plate 601 is connected to the bottom of the sampling ring knives 10 at the corresponding position. Two slide rail seats 602 that can be separated from each other are slidably connected to the inner cavity of the sampling plate 601. A cutting rope 605 is rotatably connected between the inner cavities of the slide rail seats 602 on both sides. The cutting rope 605 is pulled by moving the slide rail seats 602 to cut the sample at the bottom of the sampling ring knives 10. The plurality of detachable sampling ring knives 10 are disassembled in sequence to separate and sample.

[0045] A traction rope 606 is connected to the side of the slide seat 602 away from the cutting rope 605, and a fixed seat 609 is connected to the other side of the inner cavity of the sample dividing plate 601 corresponding to the slide seat 602. A force roller 608 is rotatably connected to the top of the fixed seat 609. The traction rope 606 extends to the other side of the sample dividing plate 601, is wound around the outside of the force roller 608 and extends to the outside of the sample dividing plate 601, and a pulling plate 610 is connected between the traction ropes 606 on both sides, which move away from each other through the slide seat 602 to unfold the cutting rope 605 to cut the soil sample.

[0046] Specifically: through the designed sampling mechanism 6, when multiple sampling ring knives 10 are threadedly connected through the adjacent first threaded connection part 5 and the second threaded connection part 7, the sampling ring knife 10 at the bottom can be connected to another sampling knife, so as to rotate downward by the rotation of the rotary drive part 4 to perform rotary sampling, and when the lifting column 12 moves to drive the rotary drive part 4 to move into the soil, the sampling ring knife 10 can be driven to move upward by resetting upward, and after the sampling is completed, the pulling plate 610 can be moved to drive the traction rope 606 to move, and the traction rope 606 can pull the other side after moving outside the force roller 608. The slide rail seat 602 moves, and after the slide rail seats 602 on both sides move away from each other, the cutting rope 605 in the slide rail seat 602 can be unfolded from the internal winding roller, and the fully unfolded cutting rope 605 is driven by the continuous movement of the slide rail seat 602 to cut the soil in the current sampling ring knife 10. The cutting rope 605 can maintain horizontal stability through the movement of the slide rail seat 602 on the sample dividing plate 601 to maintain the flatness of the cutting surface, facilitate the integrity of the soil sample retained in the sampling ring knife 10 through cutting, and facilitate the demoulding of the independent sampling ring knife 10, thereby improving the stability and adaptability of layered sampling;

[0047] The lifting column 12 may be an electric or hydraulic lifting component to realize the rotation sampling of the front blade holder 15, the sample dividing mechanism 6 and the sampling ring knife 10. Meanwhile, the thickness of the sampling ring knife 10 may be set and adjusted as required.

[0048] See also Figure 4-Figure 6 A return spring 607 is sleeved on the outside of the traction rope 606, one end of the return spring 607 is connected to one side of the slide rail seat 602, and the other side of the return spring 607 extends to one side of the fixed seat 609 at the corresponding position, the top of the slide rail seat 602 is rotatably connected to a receiving roller 603, and the traction rope 606 is wound around the outside of the receiving roller 603, the inner cavity of the slide rail seat 602 is rotatably connected to a rewinding bearing, and the rewinding bearing is wound and connected with the cutting rope 605 through a wire roller, and the cutting rope 605 is passed through a through groove 604 opened at the top of the slide rail seat 602, the two sides of the sampling ring knife 10 are respectively connected to the first threaded connection part 5 and the second threaded connection part 7, and the adjacent sampling ring knives 10 are detachably connected through the first threaded connection part 5 and the second threaded connection part 7 in sequence, and the first threaded connection part 5 and the second threaded connection part 7 are provided with a sample insertion opening 14 at the position corresponding to the sample dividing plate 601.

[0049] Specifically: through the designed return spring 607, when the slide rail seat 602 moves, the inner return spring 607 can be squeezed, and the return spring 607 can use its own elastic force to relax the corresponding pull plate 610 to reset the slide rail seat 602, so as to facilitate the subsequent cutting process, and through the designed slide rail seat 602, the cutting rope 605 can be wound in the slide rail seat 602 through the wire roller and the rewinding bearing, and after the cutting rope 605 is fully unfolded, the two ends can be kept in a taut state to cut the soil sample in the sampling ring knife 10, thereby improving the modular separation effect of the soil sample.

[0050] See also Figure 7 The outside of the sampling ring knife 10 is connected to a force-bearing sleeve 9, and a plurality of force-bearing plates are arranged around the outer periphery of the force-bearing sleeve 9. The outside of the force-bearing sleeve 9 is rotatably connected to a rotating sleeve 8, and the inner side of the rotating sleeve 8 is connected to an elastic force-applying plate. The elastic force-applying plate is driven by the rotation of the rotating sleeve 8 to knock the force-bearing plate to remove the sample.

[0051] Specifically: through the designed rotating sleeve 8 and force sleeve 9, when a single sampling ring knife 10 is disassembled, it can be moved by rotating the external rotating sleeve 8. The movement of the rotating sleeve 8 can drive the inner force plate to knock the force plate, and the force plate can transmit the rotational knocking force to the inner sampling ring knife 10, so that the soil sample in the sampling ring knife 10 can reduce adhesion due to vibration, thereby improving the sampling effect.

[0052] See also Figure 1-Figure 2 The angle adjustment mechanism 2 includes a track groove 201, a moving seat 202 is connected to the bottom of the track groove 201, and the moving seat 202 is slidably connected to the groove body opened at the top of the hanger 1. The inner cavity of the track groove 201 is slidably connected to the slide block, and the top of the slide block is connected to the bottom of the moving disk 13. The sampling area is adjusted by moving the slide block at the bottom of the moving disk 13 in the track groove 201. Slide holes are opened on both sides of the top of the moving disk 13, and slide rods 207 are slidably connected in the slide holes, and a moving plate 205 is connected between the tops of the slide rods 207 on both sides, and the bottom of the slide rods 207 is connected to the limited wheel 208. There are multiple arrays along the track travel on both sides of the inner cavity of the track groove 201. A limiting tooth 204 is provided, and the limiting wheel 208 is engaged with the limiting teeth 204 on both sides to limit the rotation of the movable disk 13. A first spring 206 is sleeved on the outer wall of the slide bar 207, and the two ends of the first spring 206 are respectively connected to the corresponding positions of the movable plate 205 and one side of the movable disk 13. An electric push rod 203 is connected to one side of the movable seat 202, and the other end of the electric push rod 203 is connected to the corresponding position of one side of the slot body cavity. The rotation control unit 3 includes a control console 301, and the control console 301 is connected to the top of the lifting column 12, and the other side of the control console 301 is rotatably connected to a rotating frame 302, and the other side of the rotating frame 302 is rotatably connected to one side of the rotation driving unit 4;

[0053] Specifically: through the designed angle adjustment mechanism 2, the moving seat 202 can be driven to move by the working extension of the electric push rod 203, and the movement of the moving seat 202 can drive the top track groove 201 to move, so that the relative distance of the front rotating drive unit 4 can be adjusted, which is conducive to conveniently adjusting the sampling area, and the moving plate 205 can be pulled to move upward, and the moving plate 205 can drive the slide bar 207 and the bottom limiting wheel 208 to move upward. After the limiting wheel 208 moves upward and separates from the limiting teeth 204 on both sides, it can be pulled The movable disk 13 rotates in the track groove 201 through the bottom slide block, which is conducive to adjusting the range of circumferential sampling through the arc rotation of the slide block and the movable disk 13 around the track groove 201. The sampling adaptability is improved, and through the designed rotating frame 302, the front rotating drive unit 4 can rotate around the rotating frame 302, wherein the rotation of the rotating frame 302 is rotationally driven by a driving mechanism located inside the rotating drive unit 4, wherein the driving mechanism can be a driving gear and a matching driving motor, and the driving unit that drives the bottom tool holder 15 inside the rotating drive unit 4 is a corresponding gear set and a driving machine, and the driving machine can be an oil-powered or hydraulic-powered machine, so that vertical sampling can be switched to horizontal sampling, which is beneficial to improving the sampling adaptability, and through the designed slide block, the diameter of the slide block is larger than the opening diameter of the top of the track groove 201, which is beneficial to avoid the separation of the moving disk 13 and the track groove 201, and further improve the sampling stability.

[0054] Working principle: When in use, after multiple sampling ring knives 10 are threadedly connected through the adjacent first threaded connection parts 5 and the second threaded connection parts 7, the sampling ring knife 10 at the bottom is connected to another sampling knife, so as to rotate downward to sample by the rotation of the rotary drive part 4. When the lifting column 12 moves to drive the rotary drive part 4 to move into the soil, the sampling ring knife 10 is driven to move upward by resetting upward. After the sampling is completed, the pulling plate 610 is moved to drive the traction rope 606 to move, and the traction rope 60 6 After the force roller 608 moves outside, it pulls the other side of the slide rail seat 602 to move. After the slide rail seats 602 on both sides move away from each other, the cutting rope 605 in the slide rail seat 602 is unfolded from the internal winding roller. The continuous movement of the slide rail seat 602 drives the fully unfolded cutting rope 605 to cut the soil in the current sampling ring knife 10. When the slide rail seat 602 moves, it squeezes the inner return spring 607. The return spring 607 uses its own elastic force to relax the corresponding pull plate 610 to reset the slide rail seat 602.

[0055] When a single sampling ring knife 10 is disassembled, the external rotating sleeve 8 is moved by rotating the rotating sleeve 8, and the movement of the rotating sleeve 8 drives the inner force-applying plate to knock the force-bearing plate, and the force-bearing plate transmits the rotational knocking force to the inner sampling ring knife 10, and the moving seat 202 is driven to move by the working extension of the electric push rod 203, and the movement of the moving seat 202 drives the top track groove 201 to move, and the relative distance of the front rotation drive unit 4 is adjusted to facilitate the adjustment of the sampling area, and the moving plate 205 is pulled upward to move, and the moving plate 205 moves upward to drive the slide bar 207 and the bottom limiting wheel 208 to move upward. After the limiting wheel 208 moves upward and separates from the limiting teeth 204 on both sides, the moving disk 13 is pulled to rotate in the track groove 201 through the bottom slide block, which is conducive to adjusting the range of circumferential sampling through the arc rotation of the slide rail block and the moving disk 13 around the track groove 201, and the front rotation drive unit 4 rotates around the rotating frame 302 to switch the vertical sampling to the horizontal sampling.

[0056] In the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A highly adaptable soil sampling device for layered sampling, comprising a hanger (1) and a rotating drive unit (4), characterized in that: A rotation control unit (3) is installed at the rear side of the rotation drive unit (4); the bottom of the rotation control unit (3) is connected to a fixing member (11) via a lifting column (12); the bottom of the fixing member (11) is connected to a moving plate (13); the bottom of the moving plate (13) is rotatably connected to the top of the hanging bracket (1) via an angle adjustment mechanism (2); A knife holder (15) is installed on the rotating shaft at the bottom of the rotation control part (3); a plurality of mutually detachably connected sampling ring knives (10) are arranged at the bottom of the knife holder (15); a sampling mechanism (6) is arranged at the bottom of the sampling ring knives (10); the sampling mechanism (6) comprises a sampling disc (601); the sampling disc (601) is connected to the bottom of the sampling ring knives (10) at a corresponding position; the inner cavity of the sampling disc (601) is slidably connected to two slide rail seats (602) that can be separated from each other; and a cutting rope (605) is rotatably connected between the inner cavities of the slide rail seats (602) on both sides; the cutting rope (605) is pulled by the slide rail seats (602) to cut the sample at the bottom of the sampling ring knives (10); and the plurality of detachable sampling ring knives (10) are sequentially disassembled to perform separation sampling; The angle adjustment mechanism (2) comprises an arc-shaped track groove (201), the bottom of the track groove (201) is connected to a moving seat (202), the moving seat (202) is slidably connected to a groove body opened at the top of the hanger (1), the inner cavity of the track groove (201) is slidably connected to a slide block, the top of the slide block is connected to the bottom of the moving disk (13), and the sampling area is adjusted by moving the slide block at the bottom of the moving disk (13) in the track groove (201); Both sides of the top of the movable disk (13) are provided with sliding holes, and sliding rods (207) are slidably connected in the sliding holes, and a movable plate (205) is connected between the tops of the sliding rods (207) on both sides, and the bottoms of the sliding rods (207) are connected with limiting wheels (208), and both sides of the inner cavity of the track groove (201) are provided with a plurality of limiting teeth (204) along the track travel array, and the rotation of the movable disk (13) is limited by the limiting wheels (208) meshing with the limiting teeth (204) on both sides; A first spring (206) is sleeved on the outer wall of the sliding rod (207), and two ends of the first spring (206) are respectively connected to corresponding positions on one side of the moving plate (205) and the moving disk (13); One side of the movable seat (202) is connected to an electric push rod (203), and the other end of the electric push rod (203) is connected to a corresponding position on one side of the inner cavity of the tank body.

2. A highly adaptable soil sampling device for stratified sampling according to claim 1, characterized in that: A traction rope (606) is connected to one side of the slide rail seat (602) away from the cutting rope (605); a fixed seat (609) is connected to the other side of the inner cavity of the sample separation plate (601) corresponding to the slide rail seat (602); a force roller (608) is rotatably connected to the top of the fixed seat (609); the traction rope (606) is extended to the other side of the sample separation plate (601), is wound around the outside of the force roller (608) and extends to the outside of the sample separation plate (601); a pulling plate (610) is connected between the traction ropes (606) on both sides, and the cutting rope (605) is spread out away from each other through the slide rail seat (602) to cut the soil sample.

3. A highly adaptable soil sampling device for stratified sampling according to claim 2, characterized in that: The traction rope (606) is sleeved with a return spring (607) on the outside, one end of the return spring (607) is connected to one side of the slide rail seat (602), and the other side of the return spring (607) extends to one side of the fixed seat (609) at the corresponding position. The top of the slide rail seat (602) is rotatably connected to a receiving roller (603), and the traction rope (606) is wound around the outside of the receiving roller (603). The inner cavity of the slide rail seat (602) is rotatably connected to a rewinding bearing, and the rewinding bearing is wound with the cutting rope (605) through a wire roller, and the cutting rope (605) is passed through a through groove (604) opened at the top of the slide rail seat (602).

4. The highly adaptable soil sampling device for stratified sampling according to claim 1, characterized in that: The sampling ring cutter (10) is connected to a first threaded connection portion (5) and a second threaded connection portion (7) on both sides, respectively, and adjacent sampling ring cutters (10) are detachably connected via the first threaded connection portion (5) and the second threaded connection portion (7) in sequence, and a sample insertion opening (14) is provided at a position of the first threaded connection portion (5) and the second threaded connection portion (7) corresponding to the sample dividing plate (601).

5. The highly adaptable soil sampling device for stratified sampling according to claim 1, characterized in that: The sampling ring knife (10) is externally connected to a force-bearing sleeve (9), a plurality of force-bearing plates are arranged around the outer circumference of the force-bearing sleeve (9), the force-bearing sleeve (9) is externally rotatably connected to a rotating sleeve (8), the inner side of the rotating sleeve (8) is connected to an elastic force-applying plate, and the elastic force-applying plate is driven by the rotation of the rotating sleeve (8) to knock the force-bearing plate to remove the sample.

6. The highly adaptable soil sampling device for stratified sampling according to claim 1, characterized in that: The rotation control unit (3) comprises a control console (301), the control console (301) is connected to the top of the lifting column (12), and the other side of the control console (301) is rotatably connected to a rotating frame (302), and the other side of the rotating frame (302) is rotatably connected to one side of the rotation drive unit (4).

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