Drilling sampling method for geological mineral exploration

Abstract

The invention discloses a drilling sampling method for geological mineral exploration, and relates to the technical field of drilling sampling, and the method comprises the following steps: starting a motor I to drive a drilling cylinder and a drill bit to rotate, then gradually reducing the length of an electric push rod I to enable the drilling cylinder and the drill bit to move into the soil so as to punch holes in the surface of the soil, starting a motor II to rotate, and starting a motor II to drive the electric push rod I to rotate; when the sampling barrels meet obstacles in the moving process, a crushing frame automatically stretches out, the obstacles are crushed, the sampling barrels can continue to advance, after collection is completed, a second motor rotates reversely, the sampling barrels are pulled into the drilling barrel, and the sampling barrels are driven to move towards the outer side of the drilling barrel to sample soil on the side face of the drilling barrel. And then the drilling barrel is pulled out of the soil, and a soil sample in the sampling barrel is taken out, so that the problem that the sampling barrel on the side surface cannot continue to move forwards when the soil on the side surface of a drilled hole is sampled and encounters stones, and thus sampling is difficult is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling sampling for geological and mineral exploration, in particular to a drilling sampling method for geological and mineral exploration. Background Art

[0002] Geological and mineral exploration is based on advanced geological science theories. On the basis of a large amount of field geological observations and the collection and collation of relevant geological data, it adopts comprehensive geological means and methods such as geological surveying, geophysical and geochemical exploration, and drilling and exploration engineering to obtain reliable geological and mineral information. Geological and mineral exploration can be carried out by observing and detecting the soil structure of geological layers through industrial microscopes. Soil can be divided into old accumulation soil, general accumulation soil and recent accumulation soil according to the age of accumulation; it can be divided into crushed stone soil, sandy soil, silt soil and clay soil according to particle grading or plasticity index; according to engineering geological significance and the special composition, state and structural characteristics of the soil.

[0003] Drilling sampling is an important part of mineral exploration. It refers to taking a certain number of rock cores or ore cores from the exploration project, and then understanding the distribution of underground ore bodies through analysis, identification and testing of these samples.

[0004] During the drilling sampling process, the soil will be scattered and mixed during the drilling process, resulting in the mixing of soil at different depths in the borehole. If this soil is extracted, it is easy to cause inaccurate sample extraction. Therefore, the soil on the side of the borehole is usually extracted as a sample. Inside the soil, there are inevitably hard objects such as stones. When sampling the soil on the side of the borehole, if stones are encountered, the sampling bucket on the side will be unable to move forward, causing difficulties in sampling. Summary of the Invention

[0005] The purpose of the present invention is to provide a drilling sampling method for geological and mineral exploration, which solves the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a drilling sampling method for geological and mineral exploration, comprising the following steps: Positioning preparation: first move the drill frame to the place where the hole needs to be drilled and sampled, then install the drill frame and put the drill barrel into the slot opened on the positioning frame on the drill frame; Determine the depth: Then install the fixing rod 1 and the fixing rod 2 on the upper end of the drill tube, and connect the clamping plate on the sliding plate with the clamping groove; Rotation drilling: Next, start the motor 1 to drive the drill barrel and drill bit to rotate, and then the length of the electric push rod 1 will gradually decrease, causing the drill barrel and drill bit to move into the ground, thereby drilling holes on the surface of the soil; Sampling: Next, when the drill tube reaches the appropriate place, start the second motor to rotate, drive the rotating disk to rotate, and thus drive the four sampling tubes to move to the outside of the drill tube to sample the soil on the side of the drill tube; Obstacle handling and collection: When the sampling tube encounters an obstacle during movement, the crushing frame automatically extends to crush the obstacle so that the sampling tube can continue to move forward. After the collection is completed, the second motor is reversed to pull the sampling tube into the drill tube, and then the drill tube is pulled out of the soil to take out the soil sample in the sampling tube.

[0007] Optionally, a positioning frame is fixedly connected to the lower surface of the inner part of the drill frame, an electric push rod is fixedly connected to the upper surface of the positioning frame, a sliding plate is fixedly connected to the upper end surface of the electric push rod, a cover tube is fixedly connected to the upper surface of the sliding plate, a motor is provided inside the cover tube, the upper end surface of the positioning frame is provided with a through slot, a drill barrel is slidably connected to the groove wall of the slot, and a drill bit is fixedly connected to the lower end surface of the drill barrel; The drill tube is provided with: An expansion assembly includes four sampling barrels, which are used to penetrate into the soil on the side of the drill barrel through the sampling barrels to take samples; A crushing assembly, used for crushing stones when the sampling tube encounters stones and cannot move forward; The extension assembly is used to control the length of the drill tube penetrating into the soil.

[0008] Optionally, the expansion component includes: The mounting plate, the side surface of the mounting plate is fixedly connected to the inner wall of the drill barrel, the upper end surface of the mounting plate is provided with a second motor, the output end of the second motor rotates through the upper end surface of the mounting plate, and the output end of the second motor is fixedly connected to a rotating rod one, the lower end portion of the rotating rod one is fixedly connected to the rotating plate, the lower end surface of the rotating plate is rotatably connected to a fixed cylinder, the lower end surface of the fixed cylinder is fixedly connected to a fixing bracket, and the lower end side surface of the fixing bracket is fixedly connected to the inner wall of the drill barrel.

[0009] Optionally, the expansion component further includes: The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip, and the toothed connecting strip is cooperatively connected with said toothed connecting strip.

[0010] Optionally, the crushing component includes: The mounting plate, the upper surface of the mounting plate is fixedly connected with a straight tooth row 2, the lower surface of the mounting plate is fixedly connected with an electric push rod 2, the output end of the electric push rod 2 is fixedly connected with a sliding block, the inner wall of the sliding block is slidably connected with a limit rod 2, the end face of the limit rod 2 is fixedly connected with the end face of the fixed plate 1, the end face of the straight tooth row 2 is provided with a through notch, the surface of the limit rod 2 is also slidably connected with the notch on the straight tooth row 2, the tooth surface of the straight tooth row 2 is meshed with the tooth surface of the gear ring, and the sliding block is fixedly connected with a spring 1 facing the side of the straight tooth row 2, and the other end of the spring 1 is fixedly connected to the end face of the straight tooth row 2.

[0011] Optionally, the crushing component further comprises: A crushing frame, the end face of the crushing frame is fixedly connected to the end face of the second straight tooth row away from the first fixed plate, the output end of the crushing frame slides through the inner wall of the sampling cylinder, and a crushing motor is also provided on the lower surface of the mounting plate, and the output end of the crushing motor is fixedly connected to the surface of the crushing frame.

[0012] Optionally, the extension component includes: A fixing rod, wherein the fixing rod is fixedly connected to the upper end surface of the drill barrel toward the end surface of the drill barrel, a threaded groove is formed on the end surface of the fixing rod facing away from the drill barrel, a threaded column is threadedly connected to the groove wall of the threaded groove, and a fixing rod is fixedly connected to the end surface of the threaded column facing away from the bottom end of the threaded groove, and the end of the fixing rod near the threaded groove is also fixedly connected to a limiting frame; The sliding frame, the end surface of the second fixing rod close to the threaded column is fixedly connected to the outer surface of the sliding frame, the inner wall of the sliding frame is slidably connected to the limiting column, the surface of the limiting column is fixedly connected to the shift rod, the end surface of the shift rod is fixedly connected to the second spring, and the other end of the second spring is fixedly connected to the inner wall of the sliding frame.

[0013] Optionally, a driving assembly is provided on the sliding plate for driving the drill bit to rotate.

[0014] Optionally, the driving component includes: The spline sleeve has a surface that rotates and passes through the lower surface of the sliding plate. The upper surface of the spline sleeve is fixedly connected to the output end of the motor one. The inner wall of the spline sleeve is slidably connected to a spline rod. The upper end face of the spline rod is fixedly connected to a spring three. The upper end of the spring three is fixedly connected to the inner wall of the spline sleeve. The lower end face of the spline rod is fixedly connected to a clamping disk. The end portions of the fixing rod one and the fixing rod two are also provided with clamping grooves that are clamped to the lower end face of the clamping disk.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention samples the side of the drill hole, discarding the loose soil inside the drill tube, so that the collected soil is more consistent with the soil characteristics of the depth, making the detection more accurate. In addition, when sampling, the sampling tubes are extended from all four sides at the same time, so that more samples are obtained and the sampling effect is better.

[0016] 2. The present invention solves the obstruction by automatically extending the crushing frame to crush the stone when the sampling tube encounters a stone during its movement, thereby further improving the process efficiency of the sampling device during the sampling process. In addition, the crushing assembly can also adjust the position of the sliding block through the electric push rod 2, so that the device can adjust the trigger point for starting the movement of the crushing frame, thereby making the sampling device applicable to more soil occasions.

[0017] 3. The present invention prevents the separation of the fixed rod 1 and the fixed rod 2 by clamping the limit column and the limit frame, thereby further improving the stability and safety of the sampling device during the drilling process. In addition, the fixed rod 1 and the fixed rod 2 can be installed with each other to change the drilling height, thereby increasing the sampling range of the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A flow chart of the structure of the present invention; Figure 2 It is a front view of the structure of the present invention; Figure 3 This is a front view of the internal structure of the drilling rig in the present invention; Figure 4 A side cross-sectional view of the drive assembly structure of the present invention; Figure 5 A side cross-sectional view of the extended component structure of the present invention; Figure 6 A cross-sectional view of the internal structure of the drill barrel in the present invention; Figure 7 A top view of the rotating disk structure of the present invention; Figure 8 This is an enlarged bottom view showing the assembly structure of the present invention; Figure 9 A bottom view of the gear ring and the spur gear row 1 and spur gear row 2 in the present invention; Figure 10 It is the front view of the sampling tube structure in the present invention.

[0019] In the figure: 1, drill stand; 2, sliding plate; 3, cover; 4, fixed rod 1; 5, fixed rod 2; 6, electric push rod 1; 7, positioning frame; 8, drill bit; 9, drill barrel; 10, motor 1; 11, spline sleeve; 12, spring 3; 13, spline rod; 14, clamping plate; 15, sliding frame; 16, spring 2; 17, limit column; 18, shift rod; 19, clamping slot; 20, limit frame; 21, motor 2; 22, rotating rod 1; 23, mounting plate; 24, Sampling tube; 25. Fixed frame; 26. Arc groove; 27. Sliding column; 28. Crushing frame; 29. ​​Crushing motor; 30. Electric push rod 2; 31. Mounting plate; 32. Limit rod 1; 33. Rotating disk; 34. Fixed tube; 35. Limit tube; 36. Straight tooth row 1; 37. Rotating frame; 38. Fixed plate 1; 39. Limit rod 2; 40. Sliding rod; 41. Sliding block; 42. Spring 1; 43. Straight tooth row 2; 44. Gear ring; 45. Annular knife. DETAILED DESCRIPTION

[0020] 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.

[0021] For example 1, please refer to Figures 1 to 10 , this implementation provides a drilling sampling method for geological and mineral exploration as follows: First, move the drill frame 1 to the place where the hole needs to be drilled and sampled, then install the drill frame 1, and put the drill tube 9 into the slot opened on the positioning frame 7 on the drill frame 1; Then install the fixing rod 1 4 and the fixing rod 2 5 on the upper end of the drill tube 9, and snap the clamping plate 14 on the sliding plate 2 into the clamping groove 19; Next, the motor 10 is started to drive the drill tube 9 and the drill bit 8 to rotate, and then the length of the electric push rod 6 will gradually decrease, so that the drill tube 9 and the drill bit 8 move into the ground, thereby drilling a hole in the soil surface; Next, when the drill tube 9 reaches the appropriate position, the second motor 21 is started to rotate, driving the rotating disk 33 to rotate, thereby driving the four sampling tubes 24 to move to the outside of the drill tube 9 to sample the soil on the side of the drill tube 9; When the sampling tube 24 encounters an obstacle during movement, the crushing frame 28 automatically extends to crush the obstacle so that the sampling tube 24 can continue to move forward. After the collection is completed, the motor 21 is reversed to pull the sampling tube 24 into the drill tube 9, and then the drill tube 9 is pulled out of the soil to take out the soil sample in the sampling tube 24.

[0022] See also Figures 2 to 10 A positioning frame 7 is fixedly connected to the lower surface of the inner part of the drill frame 1, and an electric push rod 6 is fixedly connected to the upper surface of the positioning frame 7. The upper end surface of the electric push rod 6 is fixedly connected to the sliding plate 2. The upper surface of the sliding plate 2 is fixedly connected to the cover tube 3. A motor 10 is arranged inside the cover tube 3. A through slot is opened on the upper end surface of the positioning frame 7. The groove wall of the slot is slidably connected to the drill barrel 9. The lower end surface of the drill barrel 9 is fixedly connected to the drill bit 8. The expansion component is arranged in the drill barrel 9, and the expansion component includes: The mounting plate 23 and the four sampling tubes 24, the side of the mounting plate 23 is fixedly connected to the inner wall of the drill tube 9, the upper end surface of the mounting plate 23 is provided with a second motor 21, the output end of the second motor 21 rotates through the upper end surface of the mounting plate 23, and the output end of the second motor 21 is fixedly connected to the rotating rod 1 22, the lower end of the rotating rod 1 22 is fixedly connected to the rotating plate 33, the lower end surface of the rotating plate 33 is rotatably connected to the fixed tube 34, the lower end surface of the fixed tube 34 is fixedly connected to the fixing frame 25, and the lower end side surface of the fixing frame 25 is fixedly connected to the inner wall of the drill tube 9; The sliding column 27 and the upper end surface of the rotating disk 33 are provided with four groups of penetrating arc grooves 26. The groove wall of the arc groove 26 is slidably connected to the surface of the sliding column 27. The lower surface of the sliding column 27 is fixedly connected to the sliding rod 40. The surface of the sliding rod 40 is slidably connected to the limiting cylinder 35. The end of the limiting cylinder 35 is fixedly connected to the surface of the fixed cylinder 34. The end surface of the sliding rod 40 away from the fixed cylinder 34 is fixedly connected to the rotating frame 37. The inner wall of the rotating frame 37 is rotatably connected to the gear ring 44. The tooth surface of the gear ring 44 meshes with the tooth surface of the gear ring 44. The drill tube 9 is provided with a straight tooth row 36, and a through slot is provided at the end of the straight tooth row 36. The slot wall is slidably connected to the limit rod 32. The end of the limit rod 32 is fixedly connected to the fixed plate 38. The surface of the fixed plate 38 is fixedly connected to the outer surface of the limit tube 35. The end surface of the straight tooth row 36 away from the fixed plate 38 is fixedly connected to the bottom of the sampling tube 24. The outer surface of the sampling tube 24 slides through the inner wall of the drill tube 9, and the end of the open end of the sampling tube 24 is fixedly connected to the annular knife 45.

[0023] In this embodiment, when using the drilling sampling device, after the drill pipe is inserted into the ground, the motor 21 is started to drive the rotating rod 1 22 to rotate. The rotation of the rotating rod 1 22 causes the sliding column 27 to slide in the arc groove 26, and under the limiting action of the limiting cylinder 35, the sliding rod 40 moves laterally in the limiting cylinder 35. The sliding process of the sliding rod 40 further drives the rotating frame 37 to slide, and the sliding of the rotating frame 37 drives the gear ring 44 to move, further enabling the device to have the following three motion states: First, when the spur gear row 1 36 is stationary, the gear ring 44 will roll on the spur gear row 1 36 , driving the spur gear row 2 43 to move; Second, when the spur gear row 1 36 and the spur gear row 2 43 move together, the gear ring 44 moves along with the spur gear row 1 36 and the spur gear row 2 43 and does not rotate. Thirdly, when the spur gear row 2 43 is stationary and the spur gear row 1 36 is moving, the gear ring 44 is further driven to roll on the spur gear row 2 43, thereby driving the spur gear row 1 36 to move; Then, the position of the sliding block 41 is adjusted by the electric push rod 2 30 , and the elastic force of the spring 1 42 is further adjusted to overcome the resistance generated during the movement of the sampling tube 24 , thereby controlling the sampling tube 24 to extend from the inside of the drill tube 9 to sample the side of the drill hole; The setting of this sampling component samples the side of the drill hole, discards the loose soil inside the drill tube, and makes the collected soil more consistent with the soil characteristics of the depth, making the detection more accurate. In addition, when sampling, the sampling tube 24 will be extended from all sides at the same time, so that more samples can be obtained and the sampling effect is better.

[0024] It is worth noting that this embodiment also includes a crushing assembly, which is also arranged in the drill barrel 9 and includes: The mounting plate 31 has a second spur gear row 43 fixedly connected to its upper surface, and an electric push rod 2 30 fixedly connected to its lower surface. The output end of the electric push rod 2 30 is fixedly connected to a sliding block 41. The inner wall of the sliding block 41 is slidably connected to a second limiting rod 39. The end face of the second limiting rod 39 is fixedly connected to the end face of the fixing plate 1 38. A through notch is provided on the end face of the second spur gear row 43. The surface of the second limiting rod 39 is also slidably connected to the notch on the second spur gear row 43. The tooth surface of the second spur gear row 43 is meshed with the tooth surface of the gear ring 44. A spring 1 42 is fixedly connected to the side of the sliding block 41 facing the second spur gear row 43. The other end of the spring 1 42 is fixedly connected to the end face of the second spur gear row 43. The crushing frame 28 has its end face fixedly connected to the end face of the second straight tooth row 43 away from the first fixed plate 38 . The output end of the crushing frame 28 slides through the inner wall of the sampling tube 24 , and a crushing motor 29 is also provided on the lower surface of the mounting plate 31 . The output end of the crushing motor 29 is fixedly connected to the surface of the crushing frame 28 .

[0025] In this embodiment, when the sampling barrel 24 encounters a stone during its movement, the sampling barrel 24 will be unable to move. At this time, the straight tooth row 1 36 will not move, and the straight tooth row 2 43 will be driven to move under the action of the gear ring 44, thereby driving the crushing frame 28 to move toward the opening of the sampling barrel 24. After the crushing frame 28 contacts the stone and cannot move, the crushing motor 29 is started to drive the crushing frame 28 to crush the stone. The movement mode of the crushing motor 29 driving the crushing frame 28 is similar to the way in which rock drills and crushers on the market crush stones in the soil. If there is no obstruction by the stone during the sampling process, the straight tooth row 1 36 and the straight tooth row 2 43 move together, and the crushing frame 28 does not need to extend out to crush the stone, so that it is in the sampling barrel 24 and does not affect the sampling process. The setting of this crushing component is that when the sampling tube 24 encounters a stone during its movement, the crushing frame 28 automatically extends to crush the stone to solve the obstruction, thereby further improving the process efficiency of the sampling device during the sampling process. In addition, the crushing component can also adjust the position of the sliding block 41 through the electric push rod 230, so that the device can adjust the trigger point for starting the movement of the crushing frame 28, thereby making the sampling device applicable to more soil occasions.

[0026] Example 2, based on the above example: See also Figure 2 、 Figure 3 and Figure 5 In this embodiment, an extension assembly is also included. The extension assembly is arranged on the drill barrel 9 and includes: A fixing rod 4 is fixedly connected to the upper end face of the drill tube 9, and a threaded groove is formed on the end face of the fixing rod 4 facing away from the drill tube 9. A threaded column is threadedly connected to the groove wall of the threaded groove, and a fixing rod 2 5 is fixedly connected to the end face of the threaded column facing away from the bottom end of the threaded groove. The end of the fixing rod 4 near the threaded groove is also fixedly connected to a limit frame 20. The sliding frame 15 and the end surface of the fixing rod 2 5 near the threaded column are fixedly connected to the outer surface of the sliding frame 15 , and the inner wall of the sliding frame 15 is slidably connected to the limiting column 17 , and the surface of the limiting column 17 is fixedly connected to the shift rod 18 , and the end surface of the shift rod 18 is fixedly connected to the spring 2 16 , and the other end of the spring 2 16 is fixedly connected to the inner wall of the sliding frame 15 .

[0027] In this embodiment, when installing the fixing rod 1 4 and the fixing rod 2 5 , the fixing rod 1 4 and the fixing rod 2 5 are connected by the arrangement of the threaded groove and the threaded column. Then, the lever 18 is pulled upward, so that the limiting column 17 moves upward and squeezes the spring 2 16 . When the limiting column 17 moves above the limiting frame 20 , the lever 18 is released, so that the limiting column 17 recovers under the action of the elastic force of the spring 2 16 , and the limiting column 17 is stuck with the limiting frame 20 to prevent the fixing rod 1 4 and the fixing rod 2 5 from being separated. The setting of this extension component prevents the separation of the fixing rod 1 4 and the fixing rod 2 5 by clamping the limiting column 17 with the limiting frame 20, thereby further improving the stability and safety of the sampling device during the drilling process. In addition, the fixing rod 1 4 and the fixing rod 2 5 that can be installed with each other can change the drilling height, thereby increasing the sampling range of the sampling device.

[0028] Example 3, based on the above example: See also Figure 2 、 Figure 3 and Figure 4 In this embodiment, a driving assembly is also included. The driving assembly is arranged on the sliding plate 2 and includes: The spline sleeve 11, the surface of the spline sleeve 11 rotates and passes through the lower surface of the sliding plate 2, the upper surface of the spline sleeve 11 is fixedly connected to the output end of the motor 10, the inner wall of the spline sleeve 11 is slidably connected with a spline rod 13, the upper end face of the spline rod 13 is fixedly connected with a spring three 12, the upper end of the spring three 12 is fixedly connected to the inner wall of the spline sleeve 11, the lower end face of the spline rod 13 is fixedly connected with a clamping plate 14, and the end portions of the fixing rod 1 4 and the fixing rod 2 5 are also provided with a clamping groove 19 that is clamped with the lower end face of the clamping plate 14.

[0029] In this embodiment, the arrangement of the spline rod 13 and the spline sleeve 11 makes it easier to connect the fixing rod 14 and the fixing rod 2 5 with the motor 10 after the fixing rod 1 and the fixing rod 2 5 are installed. It is only necessary to pull the clamping plate 14 upward to make the spline rod 13 slide in the spline sleeve 11 and squeeze the spring 3 12. After the fixing rod 1 or the fixing rod 2 5 is placed under the clamping plate 14, the clamping plate 14 is released. The clamping plate 14 will fit with the upper end surface of the fixing rod 1 or the fixing rod 2 5 under the action of the elastic force of the spring 3 12. Then, the motor 10 is started to drive the clamping plate 14 to rotate so that it fits with the clamping groove 19 on the fixing rod 1 or the fixing rod 2 5. Further, the fixing rod 1 4 and the fixing rod 2 5 can be driven to rotate to drill the land. The arrangement of the driving assembly connects the driving source by engaging the clamping plate 14 with the clamping slot 19 on the fixing rod 1 4 or the fixing rod 2 5 , thereby further improving the convenience of the sampling device during sampling.

[0030] Working principle: When using this drilling sampling method for geological and mineral exploration, it has the following steps: S1: First, move the drill frame 1 to the place where the hole needs to be drilled and sampled, then install the drill frame 1, and put the drill tube 9 into the slot opened on the positioning frame 7 on the drill frame 1; S2: Then install the fixing rod 1 4 and the fixing rod 2 5 on the upper end of the drill tube 9, and snap the clamping plate 14 on the sliding plate 2 into the clamping groove 19; S3: Next, the motor 10 is started to drive the drill barrel 9 and the drill bit 8 to rotate, and then the length of the electric push rod 6 is gradually reduced, so that the drill barrel 9 and the drill bit 8 move into the ground, thereby drilling a hole in the soil surface; S4: Next, when the drill tube 9 reaches the appropriate position, the second motor 21 is started to rotate, driving the rotating disk 33 to rotate, thereby driving the four sampling tubes 24 to move to the outside of the drill tube 9 to sample the soil on the side of the drill tube 9; S5: When the sampling tube 24 encounters an obstacle during movement, the crushing frame 28 automatically extends to crush the obstacle so that the sampling tube 24 can continue to move forward. After the collection is completed, the motor 21 is reversed to pull the sampling tube 24 into the drill tube 9, and then the drill tube 9 is pulled out of the soil to take out the soil sample in the sampling tube 24.

[0031] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A drilling sampling method for geological and mineral exploration, characterized in that: The following steps are involved: S1: rotating to drill holes, starting the motor 1 (10) to drive the drill tube (9) and the drill bit (8) to rotate, and then the length of the electric push rod 1 (6) is gradually reduced, so that the drill tube (9) and the drill bit (8) move into the ground to drill holes on the surface of the soil; S2: Sampling is performed, the second motor (21) is started to rotate, driving the rotating disk (33) to rotate, so that the four sampling tubes (24) move to the outside of the drill tube (9) to sample the soil on the side of the drill tube (9); S3: Obstacle handling and collection. When the sampling tube (24) encounters an obstacle during movement, the crushing frame (28) automatically extends to crush the obstacle so that the sampling tube (24) can continue to move forward. After the collection is completed, the motor 2 (21) is reversed to pull the sampling tube (24) into the drill tube (9). The drill tube (9) is then pulled out of the soil to take out the soil sample in the sampling tube (24).

2. A drilling sampling method for geological and mineral exploration according to claim 1, characterized in that: The step S1 also includes the following steps: Positioning preparation, moving the drill frame (1) to the location where the hole is to be drilled and sampled, and placing the drill tube (9) into the slot provided on the positioning frame (7); After the depth is determined, the first fixing rod (4) and the second fixing rod (5) are installed on the upper end of the drill tube (9), and the clamping plate (14) on the sliding plate (2) is clamped with the clamping groove (19).

3. A drilling sampling method for geological and mineral exploration according to claim 2, characterized in that: The lower surface of the interior of the drilling frame (1) is fixedly connected to a positioning frame (7), the upper surface of the positioning frame (7) is fixedly connected to an electric push rod (6), the upper end surface of the electric push rod (6) is fixedly connected to a sliding plate (2), the upper surface of the sliding plate (2) is fixedly connected to a cover tube (3), a motor (10) is arranged inside the cover tube (3), the upper end surface of the positioning frame (7) is provided with a through slot, the slot wall of the slot is slidably connected to a drill tube (9), the lower end surface of the drill tube (9) is fixedly connected to a drill bit (8), and the drill tube (9) is provided with: An unfolding assembly, the unfolding assembly comprising four sampling tubes (24) for penetrating into the soil on the side of the drill tube (9) through the sampling tubes (24) to take samples; A crushing assembly, used to crush stones when the sampling tube (24) encounters stones and cannot move forward; An extension assembly, used to control the length of the drill tube (9) that penetrates into the soil; The expansion component includes: a mounting plate (23), the side surface of the mounting plate (23) being fixedly connected to the inner wall of the drill tube (9), the upper end surface of the mounting plate (23) being provided with a second motor (21), the output end of the second motor (21) rotatably passing through the upper end surface of the mounting plate (23), and the output end of the second motor (21) being fixedly connected to a first rotating rod (22), the lower end of the first rotating rod (22) being fixedly connected to a rotating plate (33), the lower end surface of the rotating plate (33) being rotatably connected to a fixed tube (34), the lower end surface of the fixed tube (34) being fixedly connected to a fixed frame (25), and the lower end side surface of the fixed frame (25) being fixedly connected to the inner wall of the drill tube (9); A sliding column (27), the upper end surface of the rotating disk (33) is provided with four groups of penetrating arc grooves (26), the groove walls of the arc grooves (26) are slidably connected to the surface of the sliding column (27), the lower surface of the sliding column (27) is fixedly connected to a sliding rod (40), the surface of the sliding rod (40) is slidably connected to a limiting cylinder (35), the end of the limiting cylinder (35) is fixedly connected to the surface of the fixed cylinder (34), the end surface of the sliding rod (40) away from the fixed cylinder (34) is fixedly connected to a rotating frame (37), the inner wall of the rotating frame (37) is rotatably connected to a toothed ring (44), the tooth surface of the toothed ring (44) is meshingly connected to a straight tooth row (36), the end of the straight tooth row (36) is provided with a penetrating notch, the groove wall of the notch is slidably connected to a limiting rod (32), and the end of the limiting rod (32) is fixedly connected to a fixing plate (38).

4. A drilling sampling method for geological and mineral exploration according to claim 3, characterized in that: The surface of the fixing plate 1 (38) is fixedly connected to the outer surface of the limiting cylinder (35), and the end surface of the spur gear row 1 (36) away from the fixing plate 1 (38) is fixedly connected to the bottom of the sampling cylinder (24).

5. A drilling sampling method for geological and mineral exploration according to claim 4, characterized in that: The outer surface of the sampling tube (24) slides through the inner wall of the drill tube (9), and an annular knife (45) is fixedly connected to the end of the opening of the sampling tube (24).

6. A drilling sampling method for geological and mineral exploration according to claim 5, characterized in that: The crushing assembly comprises: A mounting plate (31) is provided, wherein the upper surface of the mounting plate (31) is fixedly connected with a second spur gear row (43), the lower surface of the mounting plate (31) is fixedly connected with a second electric push rod (30), the output end of the second electric push rod (30) is fixedly connected with a sliding block (41), the inner wall of the sliding block (41) is slidably connected with a second limiting rod (39), the end surface of the second limiting rod (39) is fixedly connected with the end surface of the first fixing plate (38), the end surface of the second spur gear row (43) is provided with a through notch, the surface of the second limiting rod (39) is also slidably connected with the notch on the second spur gear row (43), the tooth surface of the second spur gear row (43) is meshed with the tooth surface of the gear ring (44), and a spring (42) is fixedly connected to a surface of the sliding block (41) facing the second spur gear row (43), the other end of the spring (42) is fixedly connected with the end surface of the second spur gear row (43).

7. A drilling sampling method for geological and mineral exploration according to claim 6, characterized in that: The crushing assembly also includes: A crushing frame (28), the end surface of the crushing frame (28) being fixedly connected to the end surface of the second spur gear row (43) away from the first fixing plate (38), the output end of the crushing frame (28) slidingly passes through the inner wall of the sampling tube (24), and a crushing motor (29) is also provided on the lower surface of the mounting plate (31), the output end of the crushing motor (29) being fixedly connected to the surface of the crushing frame (28).

8. A drilling sampling method for geological and mineral exploration according to claim 3, characterized in that: The extension assembly comprises: A fixing rod (4), the fixing rod (4) being fixedly connected to the upper end surface of the drill tube (9) at the end surface facing the drill tube (9), a thread groove being provided on the end surface of the fixing rod (4) facing away from the drill tube (9), a thread column being threadedly connected to the groove wall of the thread groove, a fixing rod (5) being fixedly connected to the end surface of the thread column facing away from the bottom end of the thread groove, and a limiting frame (20) being fixedly connected to the end of the fixing rod (4) close to the thread groove; A sliding frame (15), wherein the end surface of the second fixing rod (5) close to the threaded column is fixedly connected to the outer surface of the sliding frame (15), the inner wall of the sliding frame (15) is slidably connected to a limit column (17), the surface of the limit column (17) is fixedly connected to a lever (18), the end surface of the lever (18) is fixedly connected to a second spring (16), and the other end of the second spring (16) is fixedly connected to the inner wall of the sliding frame (15).

9. A drilling sampling method for geological and mineral exploration according to claim 3, characterized in that: The sliding plate (2) is provided with a driving assembly for driving the drill bit (8) to rotate.

10. A drilling sampling method for geological and mineral exploration according to claim 9, characterized in that: The drive assembly comprises: A spline sleeve (11), the surface of the spline sleeve (11) rotates and penetrates the lower surface of the sliding plate (2), the upper surface of the spline sleeve (11) is fixedly connected to the output end of the motor 1 (10), the inner wall of the spline sleeve (11) is slidably connected to a spline rod (13), the upper end surface of the spline rod (13) is fixedly connected to a spring 3 (12), the upper end of the spring 3 (12) is fixedly connected to the inner wall of the spline sleeve (11), the lower end surface of the spline rod (13) is fixedly connected to a clamping plate (14), and the end of the fixing rod 1 (4) and the end of the fixing rod 2 (5) are also provided with a clamping groove (19) clamped to the lower end surface of the clamping plate (14).

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