Geological stratified sampling device for geological exploration

Abstract

The invention provides a geological stratified sampling device for geological exploration, and belongs to the technical field of exploration sampling, the geological stratified sampling device comprises a cart, a hole is formed in the cart, lifting assemblies are fixedly connected to the two sides of the hole, a power assembly is arranged between the lifting assemblies, the power assembly is in transmission connection with a sampling mechanism, and the sampling mechanism comprises a plurality of sampling barrels. The sampling barrels are detachably connected, a plurality of sampling holes are formed in the sampling barrels, blocking assemblies are arranged above the sampling holes 4, and sampling parts are arranged in the sampling holes and used for collecting soil. The cart is moved to the position where sampling is needed, the lifting assembly drives the power assembly to ascend and descend, the power assembly can drive the sampling mechanism to conduct sampling, the number of the sampling barrels can be selected according to needs, and meanwhile the sampling barrels entering soil can conduct stratified sampling through the sampling part in the sampling hole. The device is convenient to disassemble and carry, the number of the sampling barrels can be selected according to the sampling depth, and the using effect of the device is improved.

Description

Technical Field

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

[0002] Geological exploration is a survey and research activity that uses various means and methods to investigate and detect geology, determine the appropriate bearing layer, determine the foundation type based on the bearing capacity of the bearing layer, and calculate the foundation parameters. In the process of geological exploration, it is necessary to sample the soil in the exploration area, and in order to ensure the accuracy of the final exploration results, it is usually necessary to sample and explore the soil at different depths.

[0003] Existing sampling devices for geological exploration are not convenient for stratified sampling of soil. General soil sampling devices are installed in a fixed integrated manner, which is not conducive to their disassembly and carrying, and also have a limiting effect on the sampling depth, thereby reducing the practicality of the equipment. Therefore, there is an urgent need for a geological stratified sampling device for geological exploration to solve the above problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a geological stratification sampling device for geological exploration.

[0005] To achieve the above-mentioned purpose, the present invention provides a geological stratification sampling device for geological exploration, including a cart, the cart is provided with holes, lifting components are fixedly connected on both sides of the holes, a power component is arranged between the lifting components, the power component is transmission-connected with a sampling mechanism, the sampling mechanism includes a plurality of sampling barrels, the sampling barrels are detachably connected to each other, a plurality of sampling holes are provided on the sampling barrels, a blocking component is arranged above the sampling holes, a sampling part is arranged in the sampling hole, and the sampling part is used to collect soil.

[0006] Preferably, the blocking component includes a third limiting groove opened above the sampling hole, an electric lifting rod is fixedly connected in the third limiting groove, a baffle is fixedly connected to the movable end of the electric lifting rod, and the baffle is adapted to the sampling hole.

[0007] Preferably, the sampling part includes a first limiting groove symmetrically opened in the sampling hole, a first motor is fixedly connected in the first limiting groove, the output shaft of the first motor is transmission-connected to a first screw, a first slider is threadedly connected to the first screw, the first slider is adapted to the first limiting groove, a connecting plate is fixedly connected to the first slider, and a sampling assembly is fixedly connected to the connecting plate.

[0008] Preferably, the sampling assembly includes a second motor fixedly connected to the connecting plate, the output shaft of the second motor is drivingly connected to a rotating shaft, and a sampling box is fixedly connected to the rotating shaft.

[0009] Preferably, leakage nets are provided around the sampling box, and a plurality of first cones are fixedly connected to the bottom end of the sampling box.

[0010] Preferably, the bottom end of the sampling tube is fixedly connected to a limiting block, a first through hole is formed in the limiting block, a second limiting groove is formed at the top end of the sampling tube, the second limiting groove is adapted to the limiting block, second through holes are formed on both sides of the second limiting groove, and bolts are passed through the first through hole and the second through hole.

[0011] Preferably, the lifting assembly is fixedly connected to the limit columns on both sides of the hole, a sliding groove is opened in the limit column, a third motor is fixed in the sliding groove, the output shaft of the third motor is transmission-connected to the second screw rod, the second screw rod is threadedly connected to the second slider, the sliding groove is adapted to the second slider, and the second slider is fixedly connected to a mounting plate.

[0012] Preferably, the power assembly includes a fourth motor fixedly connected to the mounting plate, the output shaft of the fourth motor is transmission-connected with a driving gear, the driving gear is meshed with a driven gear, the middle of the driven gear is fixedly connected with the sampling cylinder, and the sampling cylinder is rotationally connected to the mounting plate.

[0013] Preferably, a symmetrically arranged positioning assembly is fixed to the bottom end of the cart, and the positioning assembly includes a dual-axis motor fixed to the bottom end of the cart, the dual-axis motor is transmission-connected to a gear, the gear is meshed with a rack, the rack passes through the cart through a third through hole, and the bottom end of the rack is fixed to a second cone.

[0014] Preferably, a limiting rod is fixedly connected to one side of the third through hole, a limiting plate is slidably connected to the limiting rod, and one end of the limiting plate away from the limiting rod is fixedly connected to the rack.

[0015] Preferably, a hydraulic cylinder is fixedly connected to the bottom end of the cart, a fifth motor is fixedly connected to the movable end of the hydraulic cylinder, and an output shaft of the fifth motor is drivingly connected to a cleaning disc.

[0016] Compared with the prior art, the present invention has the following advantages and technical effects:

[0017] Move the cart to the position where sampling is required, and use the lifting assembly to lift the power assembly. The power assembly can carry the sampling mechanism to take samples. The number of sampling tubes can be selected according to needs. At the same time, the sampling tubes that enter the soil can use the sampling part in the sampling hole to perform stratified sampling.

[0018] The soil sampling device of the present invention adopts a convenient disassembly mode, which is conducive to its disassembly and carrying, and the number of sampling tubes can be selected according to the sampling depth, thereby improving the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the sampling tube of the present invention;

[0022] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0023] Figure 4 for Figure 2 A partial enlarged view of B in the middle;

[0024] In the figure: 1, cart; 2, hole; 3, sampling tube; 4, sampling hole; 5, limit slot; 6, first motor; 7, first screw; 8, first slider; 9, connecting plate; 10, second motor; 11, rotating shaft; 12, sampling box; 13, leakage net; 14, first cone; 15, limit block; 16, first through hole; 17, limit slot; 18, second through hole; 19, limit column; 20, slide; 21, third motor ; 22. Second screw rod; 23. Second slider; 24. Mounting plate; 25. Fourth motor; 26. Driving gear; 27. Driven gear; 28. Dual-axis motor; 29. ​​Gear; 30. Rack; 31. Third through hole; 32. Second cone; 33. Limit rod; 34. Limit plate; 35. Hydraulic cylinder; 36. Fifth motor; 37. Cleaning disc; 38. Electric lifting rod; 39. Third limit slot; 40. Baffle. DETAILED DESCRIPTION

[0025] A geological layer sampling device for geological exploration is a specially designed tool used to collect samples in geological layers at different depths. This device usually combines a variety of mechanical and engineering principles to ensure that samples of specific geological layers can be accurately obtained while reducing interference and contamination of the samples. Its structure may include a machine base, a sampling tube, a lifting assembly, a drilling assembly, and other parts to adapt to different geological conditions and sampling requirements.

[0026] The working principle of the geological layer sampling device for geological exploration is mainly based on the following steps:

[0027] Positioning and preparation:

[0028] The operator first moves the device to the designated sampling area.

[0029] Adjust the depth and angle of the sampling head as needed to ensure that samples of the target geological layer can be accurately collected.

[0030] Sampling process:

[0031] Start the lifting assembly of the device to move the sampling tube vertically downward to the target geological layer.

[0032] The sampling tube starts to rotate and penetrates into the geological layer under the drive of the drilling assembly. The rotating action helps to reduce the resistance during sampling and increase the uniformity of sampling.

[0033] When the sampling tube reaches the predetermined sampling depth, it stops rotating and is lifted upward to take the sample out of the geological layer.

[0034] Sample separation and storage:

[0035] Some advanced geological layer sampling devices are also equipped with a cutting and separation mechanism. After sampling is completed, the mechanism will cut the sample in the sampling tube to form an outer layer and an inner layer and separate the two. This helps to reduce interference between different geological layers and improve the accuracy and reliability of the sample.

[0036] The separated samples are collected and stored in special containers for subsequent analysis and research.

[0037] Cleaning and maintenance:

[0038] After sampling is completed, the sampling device needs to be cleaned and maintained. This includes cleaning the sampling barrel, drilling assembly and cutting separation mechanism to remove residual soil and impurities. This helps to keep the device clean and accurate and extend its service life.

[0039] A Chinese patent application numbered CN202311363889.5 discloses a soil stratified sampling device, including an unlocker and a vehicle plate, wherein a drill driving mechanism is fixedly connected to the upper surface of the vehicle plate, a rotating frame is rotatably connected to the lower surface of the vehicle plate, handles are fixedly connected to both ends of the vehicle plate, a pair of wheels are rotatably connected to both sides of the vehicle plate, support plates are fixedly connected to both sides of the vehicle plate, threaded rods are threadedly connected to the support plates, a handwheel is fixedly connected to the upper end of the threaded rods, a cone head is fixedly connected to the lower end of the threaded rods, a first through hole is opened on the upper surface of the vehicle plate, a second through hole is opened on the upper surface of the vehicle plate, and a fixed bracket is fixedly connected to the upper surface of the vehicle plate A plurality of sampling drill bits are arranged on the rotating frame, one end of the vehicle plate is fixedly connected to a support frame, and a battery is fixedly connected inside the support frame; through the above technical scheme, the drill bit driving mechanism can drive the sampling drill bit to rise and fall and rotate for sampling, the rotating frame can fix the sampling drill bit and rotate it to the bottom of the main shaft for sampling, and the sampling drill bit can sample the soil and can be opened at the same time to facilitate the removal of soil samples, and the power is supplied by the battery in the support frame, and the main shaft is made more stable by fixing the bracket, and the threaded rod is driven to rotate and descend by the hand wheel, and the cone head is inserted into the soil to improve the overall stability, and the wheels and handles are used to conveniently move the whole to the predetermined position.

[0040] The Chinese patent application number CN201710700841.7 discloses a negative pressure soil stratification sampler, and specifically discloses a negative pressure soil stratification sampler, including a cylindrical sampling cavity, a sampling port at the lower end of the sampling cavity, a sample discharge port at the upper end of the sampling cavity, and a triangular guide block extending downward from the sampling port; and also includes a top cover, the top cover includes a columnar gripping portion with a radius greater than the inner radius of the sampling cavity and a plugging portion extending from the bottom surface of the gripping portion and matching the sample discharge port with the same diameter, and the plugging portion is plugged into the sample discharge port; the top cover is provided with an exhaust hole, and the exhaust hole is plugged with an elastic plug. The sampler is inserted into the soil, and the sample enters the sampling cavity from the sampling port and fills the sampling cavity. When the sampling chamber is inserted into the soil, the exhaust hole is opened, and the air in the sampling chamber is discharged from the exhaust hole. When the sampling chamber is fully loaded, the elastic plug is inserted to form a relatively sealed, low-pressure space between the sampling chamber and the plugging part. Under the action of atmospheric pressure, the sample can be sucked tightly in the sampling chamber and completely separated from the soil. After the sampling is completed, the top cover is removed, and the sample is squeezed from the sampling port to the sample discharge port, and the sample can be discharged from the sample discharge port in a complete and clear layer. In addition, an inverted triangle guide block is specially set at the sampling port, which can not only reduce the resistance of the sampling chamber entering the soil, but also increase its contact area with the sample when the sampler is pulled out, increase the resistance with the sample, and avoid sample disintegration and falling. The sampling chamber can be made of stainless steel, high carbon steel and other materials through metal processing technology. The guide block can be integrally formed with the sampling chamber. The elastic plug can be made of any elastic and sealing material, such as rubber, silicone and the like.

[0041] A Chinese patent with publication number CN202310705409.2 discloses a soil sampler for precise stratified sampling, including a column rod, a driving motor is arranged at the top of the column rod, a pre-drilling rod is installed at the output end of the driving motor, a stratified sampling assembly is arranged at the bottom of the column rod, and the stratified sampling assembly is connected to the column rod through a limiting mechanism, a handle is symmetrically arranged in the middle of the column rod, a moving barrel rod is movably sleeved on the column rod at the bottom of the handle, and a threaded layer one is arranged on the column rod between the handle and the moving barrel rod. When the soil sampler is in the initial state, the moving barrel rod is sleeved on the outside of the stratified sampling assembly. When sampling, the moving barrel rod is lifted and threadedly connected to the threaded layer one. When sampling, the pre-taken drill rod drills a hole in the pre-selected ground, and the pre-taken drill rod is driven by a driving motor to drill a hole in the pre-selected ground. After the hole is determined, the column rod is flipped so that the stratified sampling assembly at the bottom of the column rod faces downward, and the stratified sampling assembly is inserted into the determined borehole, and the moving barrel rod is lifted. The moving barrel rod is connected to the threaded layer one by a thread, so that the moving barrel rod is fixed in a determined position, and the handle is rotated to make the stratified sampling assembly sample the soil inside the borehole. Soil sampling can be carried out within a determined depth, and soil at different depths can be sampled in layers through the stratified sampling assembly, which is conducive to analyzing and detecting the soil at different depths after sampling.

[0042] After the above introduction, these prior arts and patents still have the problems mentioned in the background art that need to be solved.

[0043] 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.

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] Reference Figure 1-Figure 4 As shown, the present invention provides a geological stratification sampling device for geological exploration, including a cart 1, a hole 2 is formed on the cart 1, lifting components are fixedly connected to both sides of the hole 2, a power component is arranged between the lifting components, a sampling mechanism is transmission-connected to the power component, the sampling mechanism includes a plurality of sampling barrels 3, the sampling barrels 3 are detachably connected, a plurality of sampling holes 4 are formed on the sampling barrels 3, a blocking component is arranged above the sampling holes 4, a sampling part is arranged in the sampling hole 4, and the sampling part is used to collect soil.

[0046] Move the cart 1 to the position where sampling is required, and use the lifting assembly to lift the power assembly. The power assembly can carry the sampling mechanism to take samples. The number of sampling tubes 3 can be selected according to needs. At the same time, the sampling tube 3 that enters the soil can use the sampling part in the sampling hole 4 to perform stratified sampling.

[0047] According to a further optimized solution, the blocking component includes a third limiting groove 39 opened above the sampling hole 4, an electric lifting rod 38 is fixedly connected in the third limiting groove 39, a baffle 40 is fixedly connected to the movable end of the electric lifting rod 38, and the baffle 40 is adapted to the sampling hole 4.

[0048] A further optimized solution is that the sampling part includes a limiting groove 5 symmetrically opened in the sampling hole 4, a first motor 6 is fixedly connected in the limiting groove 5, an output shaft of the first motor 6 is transmission-connected to a first screw 7, a first slider 8 is threadedly connected to the first screw 7, the first slider 8 is adapted to the limiting groove 5, a connecting plate 9 is fixedly connected to the first slider 8, and a sampling component is fixedly connected to the connecting plate 9.

[0049] The first motor 6 is turned on and rotates the first screw 7. The first slider 8 threadedly connected to the first screw 7 will slide under the action of the limiting groove 5. The connecting plate 9 fixed therebetween will carry the sampling assembly through the sampling hole 4 into the soil for sampling.

[0050] According to a further optimized solution, the sampling assembly includes a second motor 10 fixedly connected to the connecting plate 9 , the output shaft of the second motor 10 is drivingly connected to a rotating shaft 11 , and a sampling box 12 is fixedly connected to the rotating shaft 11 .

[0051] The second motor 10 is turned on to rotate the rotating shaft 11, and at the same time, the sampling box 12 samples the soil.

[0052] According to a further optimized solution, a leakage net 13 is provided around the sampling box 12 , and a plurality of first cones 14 are fixedly connected to the bottom end of the sampling box 12 .

[0053] The first cone 14 will loosen the soil when driven by the second motor 10 , and the soil will enter the sampling box 12 through the leakage net 13 .

[0054] A further optimized solution is that the bottom end of the sampling tube 3 is fixedly connected to a limit block 15, a first through hole 16 is opened in the limit block 15, a limit groove 5 is opened at the top end of the sampling tube 3, the limit groove 5 is adapted to the limit block 15, second through holes 18 are opened on both sides of the limit groove 5, and bolts are inserted in the first through hole 16 and the second through hole 18.

[0055] Different numbers of sampling tubes 3 are selected as needed, and the limiting blocks 15 of the sampling tubes 3 are inserted into the limiting grooves 5 so that the first through holes 16 and the second through holes 18 are aligned, and then bolts are inserted into the inside for tightening.

[0056] Furthermore, the top of the sampling tube 3 connected to the power assembly is not provided with a limiting groove 5, and the bottom of the sampling tube 3 is provided with a sampling cone, which is a special setting. This is the prior art and will not be described in detail.

[0057] To further optimize the solution, the lifting assembly is fixedly connected to the limit columns 19 on both sides of the hole 2, and a slide groove 20 is opened in the limit column 19. A third motor 21 is fixedly connected in the slide groove 20. The output shaft of the third motor 21 is transmission-connected to the second screw rod 22. The second screw rod 22 is threadedly connected to the second slider 23. The slide groove 20 is adapted to the second slider 23, and the second slider 23 is fixedly connected to a mounting plate 24.

[0058] The third motor 21 is turned on, so that the third motor 21 drives the second screw rod 22 to rotate, and the second slider 23 threadedly connected thereto is lifted and lowered with the mounting plate 24 under the limit of the slide groove 20 .

[0059] A further optimized solution is that the power assembly includes a fourth motor 25 fixedly connected to the mounting plate 24, the output shaft of the fourth motor 25 is transmission-connected to a driving gear 26, the driving gear 26 is meshed with a driven gear 27, a sampling tube 3 is fixedly connected in the middle of the driven gear 27, and the sampling tube 3 is rotationally connected to the mounting plate 24.

[0060] The fourth motor 25 is turned on to rotate the driving gear 26, and the driven gear 27 meshing therewith will rotate the sampling tube 3, and the sampling tube 3 is rotatably connected to the mounting plate 24 to facilitate sampling.

[0061] A further optimized solution is that a symmetrically arranged positioning assembly is fixed to the bottom end of the cart 1, and the positioning assembly includes a dual-axis motor 28 fixed to the bottom end of the cart 1, the dual-axis motor 28 is transmission-connected to a gear 29, the gear 29 is meshed with a rack 30, the rack 30 passes through the cart 1 through a third through hole 31, and the bottom end of the rack 30 is fixed to a second cone 32.

[0062] The dual-axis motor 28 is turned on to rotate the gear 29, and the rack 30 meshing therewith will rise and fall accordingly. When the cart 1 is pushed to a suitable position, the second cone 32 is inserted into the ground to increase stability when stopped; when the cart 1 needs to be moved, the second cone 32 is lifted and the cart 1 can be pushed away.

[0063] According to a further optimized solution, a limiting rod 33 is fixedly connected to one side of the third through hole 31 , a limiting plate 34 is slidably connected to the limiting rod 33 , and one end of the limiting plate 34 away from the limiting rod 33 is fixedly connected to the rack 30 .

[0064] When the rack 30 is raised or lowered, the limiting plate 34 slides on the limiting rod 33 , which can limit the rack 30 to a certain extent.

[0065] According to a further optimized solution, a hydraulic cylinder 35 is fixedly connected to the bottom end of the trolley 1 , a fifth motor 36 is fixedly connected to the movable end of the hydraulic cylinder 35 , and a cleaning disc 37 is transmission-connected to the output shaft of the fifth motor 36 .

[0066] When sampling is required, the position where sampling is required needs to be cleaned while the cart 1 is moving. The hydraulic cylinder 35 is opened to lower the fifth motor 36, and the fifth motor 36 is opened to clean the cleaning disc 37 to avoid damage to the equipment during the sampling process.

[0067] Working principle:

[0068] When sampling is required, the cart 1 needs to be moved and the second cone 32 needs to be lifted. The position where sampling is required needs to be cleaned during the movement of the cart 1. The hydraulic cylinder 35 is opened to lower the fifth motor 36. The fifth motor 36 is turned on to carry out cleaning with the cleaning disc 37. When the cart 1 is pushed to a suitable position, the second cone 32 is inserted into the ground. The hydraulic cylinder 35 is opened to raise the fifth motor 36. The fifth motor 36 is turned off to stop cleaning.

[0069] The number of sampling tubes 3 is selected according to the sampling depth, and the third motor 21 is turned on so that the third motor 21 drives the second screw 22 to rotate, and the second slider 23 threadedly connected thereto is lifted and lowered with the mounting plate 24 under the limit of the slide groove 20, and the sampling tube 3 enters the soil for sampling, and the fourth motor 25 is turned on to rotate with the driving gear 26, and the driven gear 27 meshing with it will rotate with the sampling tube 3, and the sampling tube 3 is rotatably connected with the mounting plate 24 to facilitate sampling.

[0070] The second motor 10 is turned on to rotate the shaft 11, and at the same time, the sampling box 12 samples the soil. The first cone 14 is driven by the second motor 10 to loosen the soil, and the soil enters the sampling box 12 through the mesh 13.

[0071] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0072] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A geological stratification sampling device for geological exploration, characterized in that: The invention comprises a cart (1), wherein a hole (2) is provided on the cart (1), and lifting components are fixedly connected to both sides of the hole (2), and a power component is arranged between the lifting components. The power component is connected to a sampling mechanism in a transmission manner, and the sampling mechanism comprises a plurality of sampling barrels (3), and the sampling barrels (3) are detachably connected to each other. A plurality of sampling holes (4) are provided on the sampling barrels (3), and a blocking component is arranged above the sampling hole (4). A sampling part is arranged in the sampling hole (4), and the sampling part is used to collect soil.

2. The geological layer sampling device for geological exploration according to claim 1, characterized in that: The blocking component comprises a third limiting groove (39) opened above the sampling hole (4), an electric lifting rod (38) is fixedly connected in the third limiting groove (39), a baffle (40) is fixedly connected to the movable end of the electric lifting rod (38), and the baffle (40) is adapted to the sampling hole (4).

3. The geological layer sampling device for geological exploration according to claim 1, characterized in that: The sampling portion comprises a first limiting groove (5) symmetrically arranged in the sampling hole (4); a first motor (6) is fixedly connected in the first limiting groove (5); an output shaft of the first motor (6) is drivingly connected to a first screw rod (7); a first slider (8) is threadedly connected to the first screw rod (7); the first slider (8) is adapted to the first limiting groove (5); a connecting plate (9) is fixedly connected to the first slider (8); and a sampling assembly is fixedly connected to the connecting plate (9).

4. The geological layer sampling device for geological exploration according to claim 3 is characterized in that: The sampling assembly comprises a second motor (10) fixedly connected to the connecting plate (9); the output shaft of the second motor (10) is drivingly connected to a rotating shaft (11); a sampling box (12) is fixedly connected to the rotating shaft (11); a leakage net (13) is provided around the sampling box (12); and a plurality of first cones (14) are fixedly connected to the bottom end of the sampling box (12).

5. The geological layer sampling device for geological exploration according to claim 1, characterized in that: The bottom end of the sampling tube (3) is fixedly connected to a limit block (15), a first through hole (16) is provided in the limit block (15), a second limit groove (17) is provided at the top end of the sampling tube (3), the second limit groove (17) is adapted to the limit block (15), second through holes (18) are provided on both sides of the second limit groove (17), and bolts are provided in the first through hole (16) and the second through hole (18).

6. The geological layer sampling device for geological exploration according to claim 1, characterized in that: The lifting assembly is fixedly connected to the limiting columns (19) on both sides of the hole (2), the limiting columns (19) are provided with a slide groove (20), a third motor (21) is fixedly connected to the slide groove (20), the output shaft of the third motor (21) is drivingly connected to the second screw rod (22), the second screw rod (22) is threadedly connected to the second slider (23), the slide groove (20) is adapted to the second slider (23), and the second slider (23) is fixedly connected to a mounting plate (24).

7. The geological layer sampling device for geological exploration according to claim 6, characterized in that: The power assembly comprises a fourth motor (25) fixedly connected to the mounting plate (24); the output shaft of the fourth motor (25) is drivingly connected to a driving gear (26); the driving gear (26) is meshed with a driven gear (27); the middle of the driven gear (27) is fixedly connected to the sampling cylinder (3); and the sampling cylinder (3) is rotationally connected to the mounting plate (24).

8. The geological layer sampling device for geological exploration according to claim 1, characterized in that: The bottom end of the cart (1) is fixedly connected to a symmetrically arranged positioning assembly, the positioning assembly comprising a double-axis motor (28) fixedly connected to the bottom end of the cart (1), the double-axis motor (28) being transmission-connected to a gear (29), the gear (29) being meshed with a rack (30), the rack (30) passing through the cart (1) through a third through hole (31), the bottom end of the rack (30) being fixedly connected to a second cone (32).

9. The geological layer sampling device for geological exploration according to claim 8, characterized in that: A limiting rod (33) is fixedly connected to one side of the third through hole (31), a limiting plate (34) is slidably connected to the limiting rod (33), and one end of the limiting plate (34) away from the limiting rod (33) is fixedly connected to the rack (30).

10. The geological layer sampling device for geological exploration according to claim 1, characterized in that: The bottom end of the cart (1) is fixedly connected to a hydraulic cylinder (35), the movable end of the hydraulic cylinder (35) is fixedly connected to a fifth motor (36), and the output shaft of the fifth motor (36) is drivingly connected to a cleaning disc (37).

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