Layered sampling device for geological prospecting

Abstract

The invention belongs to the technical field of geological prospecting, and discloses a stratified sampling device for geological prospecting, which comprises a base, a transverse plate is arranged above the base, the bottom end of the transverse plate is fixedly connected with a sampling barrel, sampling boxes are uniformly arranged in the sampling barrel, and the sampling boxes are slidably connected with the sampling barrel through a moving assembly. A protective assembly is arranged at one end of the sampling box, a threaded rod and a guide rod are embedded in the transverse plate, the threaded rod and the guide rod are both mounted at the top end of the base, a motor is connected to the bottom end of the threaded rod, the motor is arranged in the base, and a cleaning assembly is arranged in the base. The sampling box moves for sampling, and in the up-and-down moving process of the sampling barrel, the protection plate is located at the end of the sampling box, so that loss or damage caused by falling of samples in the sampling box is prevented, and the integrity of the samples is ensured.

Description

Technical Field

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

[0002] A stratified sampling device is a specially designed tool used to collect samples at different depths in soil, rock or other materials. This device has a wide range of applications in many fields, including agricultural science, environmental monitoring, geological prospecting, etc.

[0003] After searching, such as patent: CN216926138U, a deep and shallow layered sampling device for prospecting engineering, including a driving mechanism, handles are integrated on both sides of the driving mechanism, and the output end of the driving mechanism is fixedly connected with a connecting part. The advantages are: after the sampling drill bit drills in, it stops rotating, and the stud is rotated by rotating the hexagonal swivel to rotate the head downward, pushing the sampling box inside the sampling groove to extend, and shovel a certain amount of soil sample. At this time, the spring is compressed. When the control head rises, the spring drives the sampling box to reset, and the sampling box is used to sample the soil sample. The amount of soil sample collected is large, which is convenient for detection; two sampling grooves of different heights are opened on one side of the sampling drill bit, so that the position of the sampling box is set according to the position of the sampling groove, so that soil samples of different depths are retained in the two sampling boxes, and the deep and shallow layers of the soil or rock layer can be layered sampled;

[0004] When current stratified sampling devices are used in the field of geological prospecting, sampling boxes are usually used to collect samples deep inside the rock layer. However, since one end of the sampling box is designed to be open, the samples inside are prone to fall off during the process of the sampling box completing the collection and rising, causing the loss or damage of the samples, which will ultimately have a negative impact on the accuracy and integrity of the exploration data. Summary of the invention

[0005] The object of the present invention is to provide a stratified sampling device for geological prospecting to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stratified sampling device for geological prospecting, comprising a base, a horizontal plate is arranged above the base, a sampling barrel is fixedly connected to the bottom end of the horizontal plate, sampling boxes are evenly arranged inside the sampling barrel, the sampling boxes are slidably connected to the sampling barrel through a moving component, a protective component is arranged at one end of the sampling box, a threaded rod and a guide rod are embedded inside the horizontal plate, the threaded rod and the guide rod are both installed on the top of the base, the bottom end of the threaded rod is connected to a motor, the motor is arranged inside the base, and a cleaning component is arranged inside the base;

[0007] The moving group includes a moving plate fixedly installed on the top of the sampling box, the inner wall of the moving plate is threadedly connected with a first reciprocating screw, the first reciprocating screw is rotatably installed in the sampling tube, one end of the first reciprocating screw is fixedly connected with a first bevel gear, the top of the first bevel gear is meshedly connected with a second bevel gear, the inside of the second bevel gear is fixedly installed with a first rotating shaft, the top of the first rotating shaft is fixedly installed with a first gear, one side of the first gear is meshedly connected with a first tooth block, the first tooth block is fixedly installed on the outer wall of the rotating wheel, the inner wall of the rotating wheel is fixedly installed with a second rotating shaft, and the top of the second rotating shaft is provided with a motor;

[0008] The protection component comprises a protection plate arranged at one end of the sampling box, and the protection plate is slidably installed inside the sampling cylinder through the control component.

[0009] As a further technical solution of the present invention, the movable plate is internally slidably connected with a limiting shaft, and the limiting shaft is fixedly installed inside the sampling tube.

[0010] As a further technical solution of the present invention, the control component includes a second reciprocating screw embedded in the protective plate, a first pulley group is installed on the top of the second reciprocating screw, a third rotating shaft is installed on the end of the first pulley group away from the second reciprocating screw, a second gear is fixedly installed on the outer wall of the third rotating shaft, a second gear is meshedly connected to one side of the second gear, and the second gear block is fixedly installed on the outer wall of the rotating wheel.

[0011] As a further technical solution of the present invention, the second gear and the first gear are symmetrically distributed on both sides of the rotating wheel.

[0012] As a further technical solution of the present invention, a third tooth block is fixedly mounted on the outer wall of the rotating wheel, and the third tooth block is meshingly connected with the second gear.

[0013] As a further technical solution of the present invention, the second gear and the first gear are staggered in the vertical direction.

[0014] As a further technical solution of the present invention, the cleaning assembly includes a cleaning ring arranged inside the base, and the inner wall of the cleaning ring is evenly installed with bristles.

[0015] As a further technical solution of the present invention, a connecting block is fixedly installed on the outer wall of the bristles, and the connecting blocks are evenly distributed in a ring array. A third gear is provided on the outer wall of the connecting block, and a fourth gear is meshingly connected to one side of the third gear. A fourth rotating shaft is fixedly installed on the inner wall of the fourth gear, and a second pulley group is installed on the outer wall of the fourth rotating shaft, and the end of the second pulley group away from the fourth rotating shaft is installed on the outer wall of the threaded rod.

[0016] As a further technical solution of the present invention, the cleaning ring is slidably connected to the third gear.

[0017] As a further technical solution of the present invention, the inner wall diameter of the fourth gear is ten N times the inner wall diameter of the third gear, and N is a positive integer.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The present invention is arranged by the cooperation of a moving component and a protective component. When sampling, the threaded rod is driven by a motor to rotate, and the rotation of the threaded rod drives the horizontal plate to move downward. The movement of the horizontal plate drives the sampling tube to move downward and embed into the reserved hole, and then the motor is started. When the motor is started, it drives the rotation of the second rotating shaft, and the rotation of the second rotating shaft drives the rotation of the rotating wheel. The rotation of the rotating wheel drives the rotation of the first tooth block, and the rotation of the first tooth block meshes with the first gear to drive the first rotating shaft to rotate. The rotation of the first rotating shaft drives the rotation of the second bevel gear, and the rotation of the second bevel gear drives the rotation of the first bevel gear. The rotation of the first bevel gear drives the rotation of the first reciprocating screw rod, and the rotation of the first reciprocating screw rod drives the movement of the moving plate. The movement of the moving plate drives the movement of the sampling box, so that the sampling box first slides out of the sampling tube, and then returns to the sampling tube after sampling. In the process of the sampling tube moving up and down, the protective plate is located at the end of the sampling box to prevent the sample inside the sampling box from falling and causing loss or damage, so as to ensure the integrity of the sample.

[0020] 2. The present invention controls the motor to start through the setting of the control component during sampling through the PLC control. When the motor starts, it drives the second rotating shaft to rotate, and the rotation of the second rotating shaft drives the rotation of the rotating wheel. The rotation of the rotating wheel drives the rotation of the second tooth block. When the second tooth block rotates and meshes with the second gear, it drives the second gear to rotate. The rotation of the second gear drives the rotation of the third rotating shaft. When the third rotating shaft rotates, it drives the second reciprocating screw to rotate through the first pulley group. The rotation of the second reciprocating screw drives the protective plate to move up, so that the protective plate is moved away from one end of the sampling box. Then the rotating wheel continues to rotate to move the sampling box out of the sampling tube through the moving component for sampling.

[0021] 3. The present invention provides a cleaning component. After sampling, the sampling tube is driven upward by a motor. During the upward movement of the sampling tube, the sampling tube comes into contact with the brush. The outer wall of the sampling tube is cleaned by the brush to remove dirt, impurities and residues attached to the surface of the sampling tube, thereby ensuring the cleanliness of the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 4 This is a schematic diagram of the structure of the cleaning ring of the present invention;

[0026] Figure 5 It is a schematic diagram of the cross-section structure of the sampling tube of the present invention;

[0027] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0028] Figure 7 It is a schematic diagram of the structure of the rotating wheel of the present invention.

[0029] In the figure: 1. base; 2. horizontal plate; 3. sampling tube; 4. threaded rod; 5. guide rod; 6. motor; 7. sampling box; 8. protective plate; 9. moving plate; 10. first reciprocating screw rod; 11. first bevel gear; 12. second bevel gear; 13. first rotating shaft; 14. first gear; 15. rotating wheel; 16. first gear block; 17. second rotating shaft; 18. motor; 19. second gear block; 20. third gear block; 21. second gear; 22. third rotating shaft; 23. first pulley group; 24. second reciprocating screw rod; 25. limit shaft; 26. cleaning ring; 27. bristles; 28. connecting block; 29. ​​third gear; 30. fourth gear; 31. fourth rotating shaft; 32. second pulley group. DETAILED DESCRIPTION

[0030] 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.

[0031] like Figures 1 to 7 As shown, in the embodiment of the present invention, a stratified sampling device for geological prospecting includes a base 1, a horizontal plate 2 is arranged above the base 1, a sampling tube 3 is fixedly connected to the bottom end of the horizontal plate 2, sampling boxes 7 are evenly arranged inside the sampling tube 3, the sampling boxes 7 are slidably connected to the sampling tube 3 through a moving component, a protective component is arranged at one end of the sampling box 7, a threaded rod 4 and a guide rod 5 are embedded inside the horizontal plate 2, the threaded rod 4 and the guide rod 5 are both installed on the top of the base 1, the bottom end of the threaded rod 4 is connected to a motor 6, the motor 6 is arranged inside the base 1, and a cleaning component is arranged inside the base 1;

[0032] The moving group includes a moving plate 9 fixedly installed on the top of the sampling box 7, the inner wall of the moving plate 9 is threadedly connected with a first reciprocating screw rod 10, the first reciprocating screw rod 10 is rotatably installed inside the sampling tube 3, one end of the first reciprocating screw rod 10 is fixedly connected with a first bevel gear 11, the top of the first bevel gear 11 is meshedly connected with a second bevel gear 12, a first rotating shaft 13 is fixedly installed inside the second bevel gear 12, a first gear 14 is fixedly installed on the top of the first rotating shaft 13, a first gear 16 is meshedly connected to one side of the first gear 14, the first gear block 16 is fixedly installed on the outer wall of the rotating wheel 15, a second rotating shaft 17 is fixedly installed on the inner wall of the rotating wheel 15, and a motor 18 is arranged on the top of the second rotating shaft 17;

[0033] The protection component includes a protection plate 8 arranged at one end of the sampling box 7, and the protection plate 8 is slidably installed inside the sampling tube 3 through the control component.

[0034] When sampling, firstly, a hole is pre-drilled by a drilling device, and then the base 1 is moved to a predetermined position, and the sampling tube 3 is located above the reserved hole.

[0035] Then the motor 6 drives the threaded rod 4 to rotate, the rotation of the threaded rod 4 drives the horizontal plate 2 to move downward, and the movement of the horizontal plate 2 drives the sampling tube 3 to move downward and embed into the reserved hole;

[0036] Then start the motor 18. When the motor 18 is started, it drives the second rotating shaft 17 to rotate. The rotation of the second rotating shaft 17 drives the rotation of the rotating wheel 15. The rotation of the rotating wheel 15 drives the rotation of the first tooth block 16. The first tooth block 16 rotates and meshes with the first gear 14 to drive the first rotating shaft 13 to rotate. The rotation of the first rotating shaft 13 drives the rotation of the second bevel gear 12. The rotation of the second bevel gear 12 drives the rotation of the first bevel gear 11. The rotation of the first bevel gear 11 drives the rotation of the first reciprocating screw 10. The rotation of the first reciprocating screw 10 drives the movement of the moving plate 9. The movement of the moving plate 9 drives the movement of the sampling box 7, so that the sampling box 7 first slides out of the sampling tube 3, and then returns to the sampling tube 3 after sampling.

[0037] At the same time, during the up and down movement of the sampling tube 3, the protective plate 8 is located at the end of the sampling box 7 to prevent the sample inside the sampling box 7 from falling and causing loss or damage, thereby ensuring the integrity of the sample.

[0038] like Figure 5 and Figure 6 As shown, the interior of the movable plate 9 is slidably connected with a limit shaft 25 , and the limit shaft 25 is fixedly installed inside the sampling tube 3 .

[0039] like Figures 1 to 7As shown, the control component includes a second reciprocating screw 24 embedded in the protective plate 8, a first pulley group 23 is installed on the top of the second reciprocating screw 24, a third rotating shaft 22 is installed on the end of the first pulley group 23 away from the second reciprocating screw 24, a second gear 21 is fixedly installed on the outer wall of the third rotating shaft 22, one side of the second gear 21 is meshedly connected with a second tooth block 19, and the second tooth block 19 is fixedly installed on the outer wall of the rotating wheel 15.

[0040] When sampling, the motor 18 is started by PLC control. When the motor 18 is started, it drives the second rotating shaft 17 to rotate. The rotation of the second rotating shaft 17 drives the rotation of the rotating wheel 15. The rotation of the rotating wheel 15 drives the rotation of the second tooth block 19. When the second tooth block 19 rotates and engages with the second gear 21, it drives the second gear 21 to rotate. The rotation of the second gear 21 drives the rotation of the third rotating shaft 22. When the third rotating shaft 22 rotates, it drives the second reciprocating screw 24 to rotate through the first pulley group 23. The rotation of the second reciprocating screw 24 drives the protective plate 8 to move up, so that the protective plate 8 is removed from one end of the sampling box 7. Then the rotating wheel 15 continues to rotate to move the sampling box 7 out of the sampling tube 3 through the moving component for sampling.

[0041] like Figure 5 and Figure 7 As shown, the second gear 21 and the first gear 14 are symmetrically distributed on both sides of the rotating wheel 15 .

[0042] When sampling, the second rotating shaft 17 is controlled by PLC to rotate one circle counterclockwise, so that the second tooth block 19 first engages with the second gear 21 to drive the protective plate 8 to move up and separate from the sampling box 7, and then the first tooth block 16 engages with the first gear 14 to drive the sampling box 7 to slide out of the sampling tube 3 to take samples and then retract them, and finally the third tooth block 20 engages with the second gear 21 to drive the protective plate 8 to move down and close the sampling box 7.

[0043] like Figure 7 As shown, a third gear block 20 is fixedly mounted on the outer wall of the rotating wheel 15 , and the third gear block 20 is meshingly connected with the second gear 21 .

[0044] When the sampling box 7 is reset after sampling, the first tooth block 16 is disengaged from the first gear 14, and the rotating wheel 15 continues to rotate to drive the third tooth block 20 to rotate. The third tooth block 20 is engaged with the second gear 21 to drive the third rotating shaft 22 to rotate, so that the protective plate 8 moves down to one end of the sampling box 7 to protect it.

[0045] like Figure 7 As shown, the second gear 21 and the first gear 14 are arranged in an up-down staggered manner.

[0046] like Figures 1 to 4 As shown, the cleaning assembly includes a cleaning ring 26 arranged inside the base 1, and the inner wall of the cleaning ring 26 is evenly installed with bristles 27.

[0047] The cleaning component is set up. After sampling, similarly, the sampling tube 3 is driven upward by the motor 6. During the upward movement of the sampling tube 3, it contacts the brush 27. The outer wall of the sampling tube 3 is cleaned by the brush 27 to remove dirt, impurities and residues attached to the surface of the sampling tube 3, thereby ensuring the cleanliness of the sampling tube 3.

[0048] like Figures 1 to 4 As shown, a connecting block 28 is fixedly installed on the outer wall of the bristles 27, and the connecting blocks 28 are evenly distributed in a ring array. A third gear 29 is provided on the outer wall of the connecting block 28, and a fourth gear 30 is meshingly connected to one side of the third gear 29. A fourth rotating shaft 31 is fixedly installed on the inner wall of the fourth gear 30, and a second pulley set 32 ​​is installed on the outer wall of the fourth rotating shaft 31. The end of the second pulley set 32 ​​away from the fourth rotating shaft 31 is installed on the outer wall of the threaded rod 4.

[0049] When the sampling tube 3 is driven upward by the motor 6, similarly, the motor 6 drives the threaded rod 4 to rotate. When the threaded rod 4 rotates, the fourth rotating shaft 31 is driven to rotate through the second pulley set 32. The rotation of the fourth rotating shaft 31 drives the rotation of the fourth gear 30. The rotation of the fourth gear 30 drives the rotation of the third gear 29. The rotation of the third gear 29 drives the rotation of the cleaning ring 26. The rotation of the cleaning ring 26 drives the brush 27 to rotate to clean the surface of the sampling tube 3, reduce the pollutants attached to the outer wall of the sampling tube 3, and minimize the interference with the experimental results.

[0050] like Figure 4 As shown, the cleaning ring 26 and the third gear 29 are slidably connected.

[0051] The bristles 27 can be cleaned directly by sliding the cleaning ring 26 out, which is convenient for maintenance.

[0052] like Figure 3 As shown, the inner wall diameter of the fourth gear 30 is ten N times the inner wall diameter of the third gear 29, and N is a positive integer.

[0053] Working principle and usage process:

[0054] When sampling, firstly, a hole is pre-drilled by a drilling device, and then the base 1 is moved to a predetermined position, and the sampling tube 3 is located above the reserved hole.

[0055] Then the motor 6 drives the threaded rod 4 to rotate, the rotation of the threaded rod 4 drives the horizontal plate 2 to move downward, and the movement of the horizontal plate 2 drives the sampling tube 3 to move downward and embed into the reserved hole;

[0056] Then start the motor 18. When the motor 18 is started, it drives the second rotating shaft 17 to rotate. The rotation of the second rotating shaft 17 drives the rotating wheel 15 to rotate, so that the rotating wheel 15 rotates one circle counterclockwise. The rotation of the rotating wheel 15 drives the second gear block 19 to rotate. When the second gear block 19 rotates and meshes with the second gear 21, it drives the second gear 21 to rotate. The rotation of the second gear 21 drives the third rotating shaft 22 to rotate. When the third rotating shaft 22 rotates, it drives the second reciprocating screw 24 to rotate through the first pulley group 23. The second reciprocating screw 24 rotates to drive the protective plate 8 to move up, so that the protective plate 8 is removed from one end of the sampling box 7.

[0057] The rotation of the rotating wheel 15 drives the rotation of the first tooth block 16, the rotation of the first tooth block 16 meshes with the first gear 14 and drives the first rotating shaft 13 to rotate, the rotation of the first rotating shaft 13 drives the rotation of the second bevel gear 12, the rotation of the second bevel gear 12 drives the rotation of the first bevel gear 11, the rotation of the first bevel gear 11 drives the rotation of the first reciprocating screw 10, the rotation of the first reciprocating screw 10 drives the movement of the moving plate 9, the movement of the moving plate 9 drives the movement of the sampling box 7, so that the sampling box 7 first slides out of the sampling tube 3, and then returns to the sampling tube 3 after sampling;

[0058] The rotation of the rotating wheel 15 drives the third gear block 20 to rotate, and the third gear block 20 meshes with the second gear 21 to drive the third rotating shaft 22 to rotate, so that the protection plate 8 moves down to one end of the sampling box 7 to protect it;

[0059] Finally, start the motor 6 again, and the sampling tube 3 moves upward in the same way. During the upward movement of the sampling tube 3, the motor 6 drives the threaded rod 4 to rotate. When the threaded rod 4 rotates, the fourth rotating shaft 31 is driven to rotate through the second pulley set 32. The rotation of the fourth rotating shaft 31 drives the rotation of the fourth gear 30. The rotation of the fourth gear 30 drives the rotation of the third gear 29. The rotation of the third gear 29 drives the rotation of the cleaning ring 26. The rotation of the cleaning ring 26 drives the brush 27 to rotate to clean the surface of the sampling tube 3, thereby completing the sampling.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stratified sampling device for geological prospecting, comprising a base (1), characterized in that: A transverse plate (2) is arranged above the base (1), a sampling tube (3) is fixedly connected to the bottom end of the transverse plate (2), sampling boxes (7) are evenly arranged inside the sampling tube (3), the sampling boxes (7) are slidably connected to the sampling tube (3) through a moving component, a protective component is arranged at one end of the sampling box (7), a threaded rod (4) and a guide rod (5) are embedded inside the transverse plate (2), the threaded rod (4) and the guide rod (5) are both installed on the top of the base (1), the bottom end of the threaded rod (4) is connected to a motor (6), the motor (6) is arranged inside the base (1), and a cleaning component is arranged inside the base (1); The moving group comprises a moving plate (9) fixedly mounted on the top of the sampling box (7), the inner wall of the moving plate (9) being threadedly connected with a first reciprocating screw (10), the first reciprocating screw (10) being rotatably mounted inside the sampling tube (3), one end of the first reciprocating screw (10) being fixedly connected with a first bevel gear (11), the top of the first bevel gear (11) being meshingly connected with a second bevel gear (12), a first rotating shaft (13) being fixedly mounted inside the second bevel gear (12), a first gear (14) being fixedly mounted on the top of the first rotating shaft (13), a first gear (16) being meshingly connected with a first tooth block (16), the first tooth block (16) being fixedly mounted on the outer wall of a rotating wheel (15), a second rotating shaft (17) being fixedly mounted on the inner wall of the rotating wheel (15), and a motor (18) being arranged at the top of the second rotating shaft (17); The protection component comprises a protection plate (8) arranged at one end of the sampling box (7), and the protection plate (8) is slidably installed inside the sampling cylinder (3) through a control component.

2. A stratified sampling device for geological prospecting according to claim 1, characterized in that: The movable plate (9) is internally slidably connected to a limiting shaft (25), and the limiting shaft (25) is fixedly mounted inside the sampling tube (3).

3. A stratified sampling device for geological prospecting according to claim 1, characterized in that: The control component comprises a second reciprocating screw (24) embedded in the protective plate (8), a first pulley group (23) is installed at the top end of the second reciprocating screw (24), a third rotating shaft (22) is installed at the end of the first pulley group (23) away from the second reciprocating screw (24), a second gear (21) is fixedly installed on the outer wall of the third rotating shaft (22), one side of the second gear (21) is meshedly connected with a second tooth block (19), and the second tooth block (19) is fixedly installed on the outer wall of the rotating wheel (15).

4. A stratified sampling device for geological prospecting according to claim 3, characterized in that: The second gear (21) and the first gear (14) are symmetrically distributed on both sides of the rotating wheel (15).

5. A stratified sampling device for geological prospecting according to claim 1, characterized in that: A third tooth block (20) is fixedly mounted on the outer wall of the rotating wheel (15), and the third tooth block (20) is meshingly connected with the second gear (21).

6. A stratified sampling device for geological prospecting according to claim 3, characterized in that: The second gear (21) and the first gear (14) are arranged in an up-down staggered manner.

7. A stratified sampling device for geological prospecting according to claim 1, characterized in that: The cleaning assembly comprises a cleaning ring (26) arranged inside the base (1), and the inner wall of the cleaning ring (26) is evenly provided with brush bristles (27).

8. A stratified sampling device for geological prospecting according to claim 7, characterized in that: A connecting block (28) is fixedly mounted on the outer wall of the bristles (27), and the connecting blocks (28) are evenly distributed in a ring array. A third gear (29) is arranged on the outer wall of the connecting block (28), and a fourth gear (30) is meshingly connected to one side of the third gear (29). A fourth rotating shaft (31) is fixedly mounted on the inner wall of the fourth gear (30), and a second pulley set (32) is mounted on the outer wall of the fourth rotating shaft (31), and one end of the second pulley set (32) away from the fourth rotating shaft (31) is mounted on the outer wall of the threaded rod (4).

9. A stratified sampling device for geological prospecting according to claim 7, characterized in that: The cleaning ring (26) is slidably connected to the third gear (29).

10. A stratified sampling device for geological prospecting according to claim 8, characterized in that: The inner wall diameter of the fourth gear (30) is ten N times the inner wall diameter of the third gear (29), and N is a positive integer.

Images