Soil sampling detection equipment and method

Abstract

The invention discloses soil sampling detection equipment and method, and belongs to the technical field of sampling equipment.The soil sampling detection equipment comprises a mounting rack and a plurality of universal wheels, the mounting rack is slidably connected with a plurality of mounting plates, the end of each mounting plate is fixedly connected with a first connecting cylinder, and the top of each first connecting cylinder is fixedly connected with a mounting ring; a sampling barrel is mounted on the mounting ring; multi-point synchronous sampling of soil can be efficiently achieved through the multiple sampling barrels arranged circumferentially, the positions of the multiple sampling barrels are adjusted through a gear and a rack which are meshed with each other in the adjusting mechanism, the positions of the sampling barrels can be adjusted according to sampling points, and meanwhile all the sampling barrels can be driven to move synchronously under the action of a belt wheel and a transmission belt; the low-efficiency operation that equipment needs to be repeatedly moved in traditional single-point sampling is avoided, and the tedious problem that the positions of multiple cylinders are independently adjusted is solved.

Description

Technical Field

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

[0002] In fields such as agriculture, environmental monitoring, and geological exploration, soil sampling is a key step in obtaining data on soil physical and chemical properties, pollution status, and more. However, existing soil sampling equipment generally has the following problems:

[0003] (1) Low efficiency of single-point sampling: Traditional equipment mostly uses a single sampling tube, and the equipment needs to be moved repeatedly to complete multi-point sampling, which is time-consuming and labor-intensive;

[0004] (2) Inflexible position adjustment: In multi-cylinder sampling equipment, the position of each sampling cylinder usually needs to be adjusted independently, which is cumbersome to operate and difficult to quickly adapt to complex terrain or differentiated sampling needs;

[0005] (3) Insufficient automation: The disassembly and replacement of the sampling tube mostly rely on manual operation, and the sampling completion status cannot be perceived in real time, resulting in interruption of the sampling process or sample overflow;

[0006] Therefore, the present invention provides a soil sampling and testing device and method to solve the above problems. Summary of the Invention

[0007] (1) Technical problems solved

[0008] The present invention provides a soil sampling and testing device and method, aiming to solve the problems raised in the background technology.

[0009] (2) Technical solution

[0010] To achieve the above-mentioned object, the present invention provides the following technical solution: a soil sampling and testing device, comprising a mounting frame and a plurality of universal wheels, wherein a plurality of mounting plates are slidably connected to the mounting frame, a first connecting cylinder is fixedly connected to the end of the mounting plate, a mounting ring is fixedly connected to the top of the first connecting cylinder, a sampling cylinder is mounted on the mounting ring, a spiral blade is provided in the first connecting cylinder, and an adjustment mechanism is provided between the plurality of mounting plates and the mounting frame, the adjustment mechanism comprising a symmetrically arranged gear and rack, wherein the gear is meshed with the rack;

[0011] A plurality of mounting blocks are evenly fixed on the outer wall of the sampling cylinder, and a clamping mechanism is provided between the plurality of mounting blocks and the mounting ring, and the clamping mechanism includes a clamping block and a fourth spring. A cylinder cover is threadedly connected to the top of the sampling cylinder, and a feedback mechanism is provided between the cylinder cover and the sampling cylinder, and the feedback mechanism includes a circular plate, a second spring and a metal ball.

[0012] As a preferred technical solution of the present application, the two gears are rotatably connected in the mounting frame through a rotating shaft, the two racks are fixedly connected to the mounting plate, two pulleys are coaxially fixed between the two gears, a transmission belt is connected between the two adjacent pulleys, and a plurality of guide columns are rotatably connected in the mounting frame, and the transmission belts are against the guide columns.

[0013] As a preferred technical solution of the present application, a plurality of card slots are evenly opened in the side wall of the mounting ring, and the card block is clamped in the card slot, an installation groove is opened in the mounting block, the card block is slidably connected in the installation groove, and a connecting plate and an electromagnet are fixedly connected in the installation groove.

[0014] As a preferred technical solution of the present application, the clamping mechanism also includes a round rod and an iron sheet, one end of the round rod is fixedly connected to the clamping block, the other end of the round rod slides through the connecting plate and is fixedly connected to the iron sheet, the fourth spring is sleeved on the round rod, and the two ends of the fourth spring are respectively fixedly connected to the clamping block and the connecting plate.

[0015] As a preferred technical solution of the present application, the sampling tube and the tube cover are both fixedly connected with metal sheets, and the two metal sheets are against each other. The electromagnet is electrically connected to the metal sheet on the sampling tube. A cavity is opened in the tube cover, and metal blocks are symmetrically fixed in the cavity. The metal blocks are electrically connected to the metal sheet on the tube cover. The metal ball is arranged in the cavity. The top of the circular plate is fixedly connected with a connecting rod, and the top of the connecting rod slides into the cavity and is fixedly connected to the metal ball. The second spring is sleeved on the connecting rod, and the two ends of the second spring are respectively fixedly connected to the metal ball and the inner wall of the cavity.

[0016] As a preferred technical solution of the present application, a guide plate is fixedly connected to the upper part of the mounting ring, a plurality of baffles are rotatably connected to the bottom of the sampling tube, and a torsion spring is fixedly connected between the plurality of baffles and the sampling tube, a first connecting groove is opened in the mounting ring, a third spring is fixedly connected in the first connecting groove, and the top end of the third spring is fixedly connected to a top plate.

[0017] As a preferred technical solution of the present application, a connecting block is provided under the guide plate, and the connecting block is fixedly connected to the first connecting tube, the spiral blade is rotatably connected to the bottom of the connecting block, a second motor is fixedly connected to the connecting block, and the output end of the second motor is coaxially fixed with the spiral blade, a second connecting groove is opened in the side wall of the first connecting tube, a first spring is fixedly connected in the second connecting groove, the bottom end of the first spring is fixedly connected to the second connecting tube, and the second connecting tube is slidably connected in the second connecting groove.

[0018] As a preferred technical solution of the present application, a first motor is fixedly connected to the top of the mounting frame, the output end of the first motor is coaxially fixed with the gear, a plurality of handles are fixedly connected to the side wall of the mounting frame, a plurality of electric hydraulic rods are fixedly connected to the bottom of the mounting frame, and the output end of the electric hydraulic rod is rotatably connected to the universal wheel.

[0019] A method for using a soil sampling and testing device includes the following testing steps:

[0020] Step 1: Move the sampling cylinder to the designated sampling position, start the first motor to drive the coaxially fixed gear and pulley to rotate, and under the action of the transmission belt, drive multiple gears to rotate synchronously, and then drive multiple mounting plates to move synchronously through multiple meshing racks, so as to adjust the positions of multiple sampling cylinders;

[0021] Step 2: When sampling the soil, the soil passes through the guide plate and enters the sampling tube. When the soil fills the sampling tube, the soil pushes the circular plate upward, and the circular plate drives the metal ball to resist the metal block, so that the circuit is closed. At this time, the electromagnet in the clamping mechanism is energized and has magnetism. The electromagnet attracts the iron sheet and resists it. The iron sheet drives the card block to move out of the card slot, releasing the limit of the card block on the sampling tube. At this time, the compressed third spring resets and pushes the top plate upward, and the top plate lifts the sampling tube to realize the disassembly of the sampling tube.

[0022] (3) Beneficial effects

[0023] 1. The present invention can efficiently achieve multi-point synchronous sampling of soil through multiple sampling cylinders arranged in a circle. The positions of the multiple sampling cylinders are adjusted by the mutually meshing gears and racks in the adjustment mechanism. The position of each sampling cylinder can be adjusted according to the sampling point. At the same time, under the action of the pulley and the transmission belt, all the sampling cylinders can be driven to move synchronously, which avoids the inefficient operation of repeated equipment movement for traditional single-point sampling and solves the cumbersome problem of independent adjustment of the positions of multiple cylinders.

[0024] 2. The present invention fixes the sampling cylinder above the spiral blade through the card block in the card mechanism. During operation, the baffle at the bottom of the sampling cylinder is pushed open with the help of the guide plate, so that the soil transported by the spiral blade can smoothly enter the sampling cylinder. When the sampling cylinder is filled with soil, the soil will push the metal ball in the feedback mechanism to trigger the card mechanism to operate, drive the card block to release the limit on the sampling cylinder, thereby realizing the automatic disassembly of the sampling cylinder, completing the entire sampling process, and simplifying the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a soil sampling and testing device and method;

[0026] Figure 2 A schematic diagram of the installation of a transmission belt in a soil sampling and testing device and method;

[0027] Figure 3 A soil sampling and testing device and method Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 A structural cross-sectional view of a mounting frame in a soil sampling and testing device and method;

[0029] Figure 5 A soil sampling and testing device and method Figure 4 Enlarged view of point B in the middle;

[0030] Figure 6 This is a schematic diagram of the installation of a sampling tube in a soil sampling and testing device and method;

[0031] Figure 7 This is a structural cross-sectional view of a sampling tube in a soil sampling and testing device and method;

[0032] Figure 8 A soil sampling and testing device and method Figure 7 Enlarged view of point C in the middle;

[0033] Figure 9 A soil sampling and testing device and method Figure 7 Enlarged view of point D in the middle.

[0034] In the picture:

[0035] 1. Mounting frame; 2. Handle; 3. Electric hydraulic rod; 4. Universal wheel; 5. Mounting plate; 6. Mounting ring; 7. First connecting cylinder; 8. Second connecting cylinder; 9. Sampling cylinder; 10. Cylinder cover; 11. Drive belt; 12. Gear; 13. Pulley; 14. Rack; 15. Guide column; 16. First motor; 17. Mounting block; 18. Guide plate; 19. Connecting block; 20. Spiral blade; 21. Second motor; 22. First spring; 23. Metal sheet; 24. Metal block; 25. Metal ball; 26. Connecting rod; 27. Second spring; 28. Round plate; 29. ​​Baffle; 30. Torsion spring; 31. Top plate; 32. Third spring; 33. Slot; 34. Block; 35. Round rod; 36. Fourth spring; 37. Connecting plate; 38. Iron sheet; 39. Electromagnet. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 making creative efforts are within the scope of protection of the present invention.

[0037] Example 1

[0038] The present invention provides a soil sampling and testing device, such as Figures 1-9 As shown, the technical solution includes a mounting frame 1 and a plurality of universal wheels 4, a plurality of mounting plates 5 are slidably connected to the mounting frame 1, the ends of the mounting plates 5 are fixedly connected to the first connecting cylinder 7, the top of the first connecting cylinder 7 is fixedly connected to the mounting ring 6, a sampling cylinder 9 is installed on the mounting ring 6, a spiral blade 20 is provided in the first connecting cylinder 7, and an adjustment mechanism is provided between the plurality of mounting plates 5 and the mounting frame 1, the adjustment mechanism includes a symmetrically arranged gear 12 and a rack 14, the gear 12 is meshed with the rack 14, and the circumferentially arranged plurality of sampling cylinders 9 can efficiently achieve multi-point synchronous sampling of the soil, and the positions of the plurality of sampling cylinders 9 are adjusted by the mutually meshing gears 12 and racks 14 in the adjustment mechanism, and the position of each sampling cylinder 9 can be adjusted according to the sampling point;

[0039] A plurality of mounting blocks 17 are evenly fixed on the outer wall of the sampling barrel 9, and a clamping mechanism is provided between the plurality of mounting blocks 17 and the mounting ring 6. The clamping mechanism includes a clamping block 34 and a fourth spring 36. The top of the sampling barrel 9 is threadedly connected to a barrel cover 10. A feedback mechanism is provided between the barrel cover 10 and the sampling barrel 9. The feedback mechanism includes a circular plate 28, a second spring 27 and a metal ball 25. The sampling barrel 9 is fixed above the spiral blade 20 by the clamping block 34 in the clamping mechanism. When the soil fills the sampling barrel 9, the soil will push the metal ball 25 in the feedback mechanism to trigger the operation of the clamping mechanism, drive the clamping block 34 to release the limit on the sampling barrel 9, and realize the automatic disassembly of the sampling barrel 9.

[0040] To illustrate this, the spiral blade 20 is composed of a drive shaft and a spiral conveying blade arranged on the outer surface of the drive shaft. The top of the drive shaft is fixed to the output shaft of the second motor 21 through a coupling. The bottom of the spiral blade 20 is flush with the bottom of the second connecting cylinder 8, so that when the second connecting cylinder 8 extends out of the first connecting cylinder 7 without the action of an external force on the first spring 22, the spiral blade 20 can be accommodated in the second connecting cylinder 8, and the outer wall of the spiral blade 20 is in contact with the inner wall of the first connecting cylinder 7 and the second connecting cylinder 8, so that the soil is placed between the spiral blade 20 and the first connecting cylinder 7 and the second connecting cylinder 8. When the second connecting tube 8 is gradually inserted into the soil, it will be affected by the soil resistance and will gradually shrink toward the inner wall of the first connecting tube 7. At this time, the spiral blade 20 will be inserted into the soil and drive the spiral blade 20 to rotate. The spiral blade 20 uses the cutting force generated by the rotation to break the soil structure. At the same time, the axial thrust is formed by the inclination angle of the spiral surface, so that the stripped soil obtains an upward component of force and moves upward along the gap between the conveying blades. The crushed soil particles are transported upward along the spiral path of the blades to avoid the soil from falling back or getting blocked during the sampling process, and finally collected.

[0041] Reference Figure 2-Figure 5As shown, the two gears 12 are rotatably connected in the mounting frame 1 through a rotating shaft, the two racks 14 are fixedly connected to the mounting plate 5, two pulleys 13 are coaxially fixed between the two gears 12, the two racks 14 are symmetrically arranged inside the mounting plate 5, and are located on the same side of the mounting plate 5, a transmission belt 11 is transmitted between the two adjacent pulleys 13, a plurality of guide columns 15 are rotatably connected in the mounting frame 1, and the transmission belt 11 and the guide columns 15 are abutted, a first motor 16 is fixedly connected to the top of the mounting frame 1, and the output end of the first motor 16 is coaxially fixed with the gear 12, a plurality of handles 2 are fixedly connected to the side wall of the mounting frame 1, a plurality of electric hydraulic rods 3 are fixedly connected to the bottom of the mounting frame 1, and the output end of the electric hydraulic rod 3 is rotatably connected to the universal wheel 4, it should be noted that the first motor 16 is a servo motor, and its output end can realize forward and reverse rotation by changing the direction of the current;

[0042] When in use, the first motor 16 is started to drive the coaxially fixed gear 12 and the pulley 13 to rotate. Under the action of the transmission belt 11, multiple gears 12 are driven to rotate synchronously, and then multiple mounting plates 5 are driven to move synchronously through multiple meshing racks 14, so as to adjust the positions of multiple sampling cylinders 9, which avoids the inefficient operation of repeated equipment movement of traditional single-point sampling and solves the tedious problem of independent adjustment of the positions of multiple cylinders.

[0043] Reference Figure 6 、 Figure 7 and Figure 9 As shown, a plurality of slots 33 are evenly provided in the side wall of the mounting ring 6, and the clamping block 34 is clamped in the slot 33, and a mounting slot is provided in the mounting block 17, and the clamping block 34 is slidably connected in the mounting slot, and a connecting plate 37 and an electromagnet 39 are fixedly connected in the mounting slot. The clamping mechanism also includes a round rod 35 and an iron sheet 38, one end of the round rod 35 is fixedly connected to the clamping block 34, and the other end of the round rod 35 slides through the connecting plate 37 and is fixedly connected to the iron sheet 38, a fourth spring 36 is sleeved on the round rod 35, and the two ends of the fourth spring 36 are fixedly connected to the clamping block 34 and the connecting plate 37 respectively; a plurality of limit slots are provided on the top of the mounting ring 6, and a plurality of clamping slots 33 are respectively provided on the side walls of multiple limit grooves. When the mounting block 17 is clamped in the limit groove, one end of the clamping block 34 extends through and extends to the outside of the mounting block 17, and the inclined surface of the clamping block 34 spans the limit groove. When the mounting block 17 moves downward, the inclined surface of the clamping block 34 can contact the top side of the limit groove. When installing the sampling cylinder 9, the sampling cylinder 9 is inserted into the mounting ring 6. At this time, the mounting ring 6 squeezes the inclined surface of the clamping block 34, so that the clamping block 34 compresses the fourth spring 36 and retracts into the mounting groove. When the position of the clamping block 34 is relative to the clamping groove 33, the compressed fourth spring 36 pushes the clamping block 34 to insert into the clamping groove 33, thereby limiting the sampling cylinder 9.

[0044] Reference Figure 7 and Figure 8As shown, the sampling tube 9 and the tube cover 10 are fixedly connected with a metal sheet 23, and the two metal sheets 23 are abutted against each other. The electromagnet 39 is electrically connected to the metal sheet 23 on the sampling tube 9. A cavity is opened in the tube cover 10, and metal blocks 24 are symmetrically fixed in the cavity. The metal blocks 24 are electrically connected to the metal sheet 23 on the tube cover 10. The metal ball 25 is arranged in the cavity. The top of the circular plate 28 is fixedly connected with a connecting rod 26. The top of the connecting rod 26 slides into the cavity and is fixedly connected to the metal ball 25. The second spring 27 is sleeved on the connecting rod 26, and the two ends of the second spring 27 are fixedly connected to the metal ball 25 and the inner wall of the cavity respectively; after the tube cover 10 is installed on the sampling tube 9, the metal sheet 23 on the tube cover 10 is abutted against the metal sheet 23 on the sampling tube 9. At this time, the metal block 24 is electrically connected to the electromagnet 39. When the metal ball 25 abuts against the two metal blocks 24, the circuit connecting the electromagnet 39 is closed.

[0045] Reference Figure 7 and Figure 9 As shown, the upper portion of the mounting ring 6 is fixedly connected with a guide plate 18, the bottom portion of the sampling tube 9 is rotatably connected with a plurality of baffles 29, and a torsion spring 30 is fixedly connected between the plurality of baffles 29 and the sampling tube 9, a first connecting groove is provided in the mounting ring 6, a third spring 32 is fixedly connected in the first connecting groove, and a top plate 31 is fixedly connected to the top of the third spring 32. When the sampling tube 9 is mounted on the mounting ring 6, the sampling tube 9 squeezes the top plate 31 to compress the third spring 32, and at the same time, the guide plate 18 pushes the baffle 29 to rotate; a connecting block 19 is provided below the guide plate 18, and the connecting block 19 is fixedly connected to the first connecting tube 7, and the spiral blade 20 is rotatably connected to the The bottom of the connecting block 19, the upper and lower ends of the connecting block 19 are tapered, and there is a sufficient gap between the connecting block 19 and the first connecting tube 7. The connecting block 19 is fixed to the first connecting tube 7 by a plurality of prismatic columns, which can reduce the resistance of the soil passing through the connecting block 19 and facilitate the passage of the soil; a second motor 21 is fixedly connected to the connecting block 19, and the output end of the second motor 21 is coaxially fixed with the spiral blade 20. A second connecting groove is opened in the side wall of the first connecting tube 7, and a first spring 22 is fixedly connected to the second connecting groove. The bottom end of the first spring 22 is fixedly connected to the second connecting tube 8, and the second connecting tube 8 is slidably connected to the second connecting groove;

[0046] Working principle: When in use, start the second motor 21 to drive the spiral blade 20 to rotate, and synchronously start the electric hydraulic rod 3 to drive the mounting frame 1 to move downward, so that the rotating spiral blade 20 is inserted into the soil. The second motor 21 provides a rotating force for the spiral blade 20. While the spiral blade 20 is rotating, the electric hydraulic rod 3 provides a vertical downward driving force for the spiral blade 20. The rotating spiral blade 20 can generate an annular shear force, which can break the soil into soft soil blocks. Under the action of the electric hydraulic rod 3, the spiral blade 20 can be inserted into the soil. The second connection The cylinder 8 compresses the first spring 22 and retracts it into the first connecting cylinder 7. As the spiral blade 20 continues to rotate, the decomposed soil blocks can be lifted along the axial direction of the spiral blade 20, and the soil blocks move upward and gradually approach the guide plate 18. As the rising soil gradually increases, the soil transported by the uppermost spiral blade 20 is squeezed and passes through the guide plate 18 into the sampling cylinder 9. Since the guide plate 18 is a conical quadrangular pyramid with a hollow interior and a through-hole design, it can push the baffle 29 open while ensuring the normal passage of soil. When the soil fills the sampling cylinder 9, the soil is squeezed out. As the soil continues to increase, pressure is applied to the circular plate 28, pushing the circular plate 28 upward. The circular plate 28 drives the metal ball 25 to contact the metal block 24, closing the circuit. At this time, the electromagnet 39 in the clamping mechanism is energized and has magnetism. The electromagnet 39 attracts the iron sheet 38 and contacts it. The iron sheet 38 drives the card block 34 to move out of the card slot 33, releasing the limit of the card block 34 on the sampling tube 9. The magnetic attraction force generated between the electromagnet 39 and the iron sheet 38 is greater than the elastic force generated by the fourth spring 36, ensuring that the electromagnet 39 can move the card block 34 out of the card slot 33. At this time, the pressure The compressed third spring 32 is reset to push the top plate 31 upward, and the top plate 31 lifts the sampling tube 9. The torsion spring 30 drives the baffle 29 to reset, and the bottom of the sampling tube 9 is blocked, so as to realize the automatic disassembly of the sampling tube 9, thereby completing the entire sampling process and simplifying the operation process. The baffle 29 is arranged in a triangular shape. When multiple baffles 29 are reset under the action of the torsion spring 30, they can form a closed square. A protrusion is provided at the connection between the sampling tube 9 and the baffle 29, which can limit the baffle 29 from rotating downward to prevent the soil in the sampling tube 9 from squeezing the baffle 29 due to gravity and deflecting.

[0047] It should be noted that the electromagnet 39 is a device that generates electromagnetic energy when electricity is applied. A conductive winding matching its power is wound around the outside of the iron core. This coil with current passing through it has magnetism like a magnet. The electromagnet 39, the first motor 16 and the second motor 21 are all connected to an external power supply through wires. The external power supply includes a battery for providing electrical energy to the electromagnet 39, the first motor 16 and the second motor 21 and a control switch for controlling their start and stop. The external power supply and the electromagnet 39 are both existing technologies. The specific model specifications of the first motor 16 and the second motor 21 need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0048] Example 2

[0049] This embodiment, based on the first embodiment, proposes a method for using a soil sampling and testing device, including the following testing steps:

[0050] Step 1: Move the sampling cylinder 9 to the designated sampling position, start the first motor 16 to drive the coaxially fixed gear 12 and pulley 13 to rotate, and under the action of the transmission belt 11, drive multiple gears 12 to rotate synchronously, and then drive multiple mounting plates 5 to move synchronously through multiple meshing racks 14, so as to adjust the positions of multiple sampling cylinders 9;

[0051] Step 2: When sampling the soil, the soil passes through the guide plate 18 and enters the sampling tube 9. When the soil fills the sampling tube 9, the soil pushes the circular plate 28 upward, and the circular plate 28 drives the metal ball 25 to abut against the metal block 24, so that the circuit is closed. At this time, the electromagnet 39 in the clamping mechanism is energized and has magnetism. The electromagnet 39 attracts the iron sheet 38 and abuts against it. The iron sheet 38 drives the card block 34 to move out of the card slot 33, releasing the limit of the card block 34 on the sampling tube 9. At this time, the compressed third spring 32 is reset to push the top plate 31 upward, and the top plate 31 lifts the sampling tube 9 to realize the disassembly of the sampling tube 9.

[0052] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A soil sampling and testing device, comprising a mounting frame (1) and a plurality of universal wheels (4), characterized in that: A plurality of mounting plates (5) are slidably connected to the mounting frame (1), the end of the mounting plate (5) is fixedly connected to a first connecting tube (7), the top of the first connecting tube (7) is fixedly connected to a mounting ring (6), a sampling tube (9) is mounted on the mounting ring (6), a spiral blade (20) is provided in the first connecting tube (7), and an adjustment mechanism is provided between the plurality of mounting plates (5) and the mounting frame (1), the adjustment mechanism comprising a symmetrically arranged gear (12) and a rack (14), the gear (12) meshing with the rack (14); A plurality of mounting blocks (17) are evenly fixed on the outer wall of the sampling cylinder (9), and a clamping mechanism is provided between the plurality of mounting blocks (17) and the mounting ring (6), and the clamping mechanism includes a clamping block (34) and a fourth spring (36). The top of the sampling cylinder (9) is threadedly connected to a cylinder cover (10), and a feedback mechanism is provided between the cylinder cover (10) and the sampling cylinder (9), and the feedback mechanism includes a circular plate (28), a second spring (27) and a metal ball (25).

2. The soil sampling and testing equipment according to claim 1, characterized in that: The two gears (12) are rotatably connected in the mounting frame (1) via a rotating shaft, the two racks (14) are fixedly connected to the mounting plate (5), two pulleys (13) are coaxially fixed between the two gears (12), a transmission belt (11) is connected between the two adjacent pulleys (13), and a plurality of guide columns (15) are rotatably connected in the mounting frame (1), and the transmission belts (11) and the guide columns (15) are in contact with each other.

3. The soil sampling and testing equipment according to claim 1, characterized in that: A plurality of slots (33) are evenly formed in the side wall of the mounting ring (6), and the clamping block (34) is clamped in the slot (33). A mounting slot is formed in the mounting block (17), and the clamping block (34) is slidably connected in the mounting slot. A connecting plate (37) and an electromagnet (39) are fixedly connected in the mounting slot.

4. The soil sampling and testing equipment according to claim 3, characterized in that: The clamping mechanism further comprises a round rod (35) and an iron sheet (38), one end of the round rod (35) is fixedly connected to the clamping block (34), the other end of the round rod (35) slides through the connecting plate (37) and is fixedly connected to the iron sheet (38), the fourth spring (36) is sleeved on the round rod (35), and the two ends of the fourth spring (36) are respectively fixedly connected to the clamping block (34) and the connecting plate (37).

5. The soil sampling and testing equipment according to claim 3, characterized in that: The sampling tube (9) and the tube cover (10) are both fixedly connected with a metal sheet (23), and the two metal sheets (23) are against each other. The electromagnet (39) is electrically connected to the metal sheet (23) on the sampling tube (9). A cavity is opened in the tube cover (10), and a metal block (24) is symmetrically fixed in the cavity. The metal block (24) is electrically connected to the metal sheet (23) on the tube cover (10). The metal ball (25) is set in the cavity. The top of the circular plate (28) is fixedly connected with a connecting rod (26). The top of the connecting rod (26) slides into the cavity and is fixedly connected to the metal ball (25). The second spring (27) is sleeved on the connecting rod (26), and the two ends of the second spring (27) are respectively fixedly connected to the metal ball (25) and the inner wall of the cavity.

6. The soil sampling and testing equipment according to claim 1, characterized in that: The upper portion of the mounting ring (6) is fixedly connected to a guide plate (18), the bottom portion of the sampling cylinder (9) is rotatably connected to a plurality of baffles (29), and a torsion spring (30) is fixedly connected between the plurality of baffles (29) and the sampling cylinder (9). A first connecting groove is provided in the mounting ring (6), a third spring (32) is fixedly connected in the first connecting groove, and a top plate (31) is fixedly connected to the top end of the third spring (32).

7. The soil sampling and testing equipment according to claim 6, characterized in that: A connecting block (19) is provided below the guide plate (18), and the connecting block (19) is fixedly connected to the first connecting tube (7). The spiral blade (20) is rotatably connected to the bottom of the connecting block (19). A second motor (21) is fixedly connected in the connecting block (19), and the output end of the second motor (21) is coaxially fixed with the spiral blade (20). A second connecting groove is provided in the side wall of the first connecting tube (7), and a first spring (22) is fixedly connected in the second connecting groove. The bottom end of the first spring (22) is fixedly connected to the second connecting tube (8), and the second connecting tube (8) is slidably connected in the second connecting groove.

8. The soil sampling and testing equipment according to claim 1, characterized in that: A first motor (16) is fixedly connected to the top of the mounting frame (1), and an output end of the first motor (16) is coaxially fixed to the gear (12). A plurality of handles (2) are fixedly connected to the side wall of the mounting frame (1). A plurality of electric hydraulic rods (3) are fixedly connected to the bottom of the mounting frame (1), and the output ends of the electric hydraulic rods (3) are rotatably connected to the universal wheel (4).

9. A method for using the soil sampling and testing device according to any one of claims 1 to 8, characterized in that: The following detection steps are included: Step 1: Move the sampling cylinder (9) to the designated sampling position, start the first motor (16) to drive the coaxially fixed gear (12) and the pulley (13) to rotate, and under the action of the transmission belt (11), drive the multiple gears (12) to rotate synchronously, and then drive the multiple mounting plates (5) to move synchronously through the multiple meshing racks (14), so as to adjust the positions of the multiple sampling cylinders (9); Step 2: When sampling the soil, the soil passes through the guide plate (18) and enters the sampling tube (9). When the soil fills the sampling tube (9), the soil pushes the circular plate (28) upward, and the circular plate (28) drives the metal ball (25) to abut against the metal block (24), so that the circuit is closed. At this time, the electromagnet (39) in the clamping mechanism is energized and has magnetism. The electromagnet (39) adsorbs the iron sheet (38) and abuts against it. The iron sheet (38) drives the clamping block (34) to move out of the clamping slot (33), releasing the limit of the clamping block (34) on the sampling tube (9). At this time, the compressed third spring (32) resets and pushes the top plate (31) upward. The top plate (31) lifts the sampling tube (9), thereby realizing the disassembly of the sampling tube (9).

Images