Sampling device for geothermal resource exploration

Abstract

The invention discloses a sampling device for geothermal resource exploration, and relates to the technical sampling field of geothermal resources. Supporting frames are fixedly mounted on the upper surface of the bottom plate, a mounting plate is slidably mounted between the supporting frames, a mounting disc is rotatably mounted on the lower surface of the mounting plate, a rotating rod is detachably mounted in the mounting disc, a drill bit is in threaded connection with the lower surface of the rotating rod, a rotating disc is rotatably mounted in the drill bit, and five outer pipes are slidably mounted in the rotating disc; according to the device, the five inner pipes are installed through the rotating disc, then the rotating disc is driven by the third motor to rotate, the positions of the inner pipes are adjusted, the inner pipes are driven by the electric telescopic rod to move downwards for sampling, and the sampling efficiency is improved. Therefore, multiple times of sampling can be achieved through one-time drilling, daily use is facilitated, the inner pipe and the outer pipe are installed through the threads, and the inner pipe is convenient to install and detach.

Description

Technical Field

[0001] The invention relates to the technical field of geothermal resource sampling, in particular to a sampling device for geothermal resource exploration. Background Art

[0002] Geothermal resources refer to renewable thermal energy stored in the earth's interior. They are generally concentrated along the edges of tectonic plates and originate from the earth's molten magma and the decay of radioactive substances. Since geothermal energy is stored underground, it is not affected by any weather conditions. Geothermal energy can be divided into shallow geothermal energy, middle geothermal energy (hydrothermal geothermal resources), and deep geothermal energy (hot dry rock geothermal resources) according to the depth of burial.

[0003] When mining shallow geothermal resources, it is first necessary to explore and sample the underground soil. During the exploration and sampling, it is necessary to sample the soil at different depths to detect the geological environment. However, most of the current sampling devices can only sample once, resulting in the need to repeat multiple operations when sampling at different depths, which is inconvenient for daily use. In view of the above problems, the inventors propose a sampling device for geothermal resource exploration to solve the above problems. Summary of the invention

[0004] In order to solve the problem that sampling cannot be performed multiple times, the purpose of the present invention is to provide a sampling device for geothermal resource exploration.

[0005] To solve the above technical problems, the present invention adopts the following technical scheme: a sampling device for geothermal resource exploration, comprising a base plate, a support frame is fixedly installed on the upper surface of the base plate, a mounting plate is slidably installed between the supporting frames, sliders are fixedly installed on both sides of the mounting plate, the sliders are slidably arranged inside the supporting frame, a mounting box is fixedly installed on the side of the supporting frame, a No. 1 motor is fixedly installed in the mounting box, two first bevel gears are fixedly installed on the outer surface of the output shaft of the No. 1 motor, the first bevel gear is meshingly connected with the second bevel gear, a screw rod is fixedly installed on the lower surface of the second bevel gear, a slider is threadedly connected on the screw rod, a mounting disk is rotatably installed on the lower surface of the mounting plate, a fixing box is fixedly installed on the upper surface of the mounting plate, a No. 2 motor is fixedly installed in the fixing box, the bottom end of the No. 2 motor is fixedly connected to the mounting disk, two fixing bars are slidably installed in the mounting disk, sliding bars are fixedly installed on both sides of the fixing bar, the sliding bar is slidably arranged inside the mounting disk, and the fixing bar is movably clamped inside the rotating rod, two screw rods are rotatably installed on the outer surface of the mounting disk, the fixing bars are threadedly connected on the screw rod, a rotating rod is detachably installed in the mounting disk, and the rotating rod The lower surface of the drill bit is threadedly connected, and a sealing cover is rotatably installed on the lower surface of the drill bit. The bottom end of the inner tube is in active contact with the upper surface of the sealing cover. A second spring is fixedly installed on the outer surface of the sealing cover rotating shaft, and one end of the second spring away from the rotating shaft is fixedly connected to the inside of the drill bit. A turntable is rotatably installed in the drill bit, and a No. 3 motor is fixedly installed in the drill bit. A first gear is fixedly installed on the top of the No. 3 motor, and the first gear is meshed with the second gear. A connecting rod is fixedly installed on the lower surface of the second gear, and one end of the connecting rod away from the second gear is fixedly connected to the turntable. The drill bit An electric telescopic rod is fixedly installed inside, and the bottom end of the electric telescopic rod is in movably contact with the upper surface of the outer tube, five outer tubes are slidably installed in the turntable, two limit blocks are fixedly installed on the outer surface of the outer tube, the limit blocks are slidably arranged inside the turntable, a first spring is fixedly installed on the lower surface of the limit block, and one end of the first spring away from the limit block is fixedly connected to the inside of the turntable, an inner tube is connected to the inner thread of the outer tube, a push plate is slidably installed in the inner tube, a limit strip is fixedly installed on the outer surface of the push plate, the limit strip is slidably arranged inside the inner tube, and the movable bottom end of the inner tube is movably inserted into the ground.

[0006] Preferably, a base is fixedly installed on the side of the bottom plate away from the installation box, a placing plate is rotatably installed on the upper surface of the base, five storage boxes are slidably installed in the placing plate, a mounting frame is fixedly installed on the upper surface of the base, a fixed plate is fixedly installed between the mounting frames, a rotating plate is rotatably installed in the fixed plate, an array of placing slots are provided in the rotating plate, the storage boxes and the placing slots correspond one to one, five groups of limit assemblies are provided in the rotating plate, a cylinder is fixedly installed on the upper surface of the mounting frame, a push rod is fixedly installed on the bottom end of the cylinder, and the bottom end of the push rod is in movably contact with the upper surface of the push plate.

[0007] Preferably, the limiting assembly includes a moving frame, a rotating wheel is rotatably installed inside the moving frame, the outer surface of the rotating wheel is movably in contact with the inner tube, moving blocks are fixedly installed on both sides of the moving frame, the moving blocks are slidably arranged inside the rotating disk, and third springs are fixedly installed on the sides of the moving blocks away from each other, and one end of the third spring away from the moving block is fixedly connected to the inside of the rotating disk.

[0008] Preferably, a gear ring is fixedly installed on the outer surface of the rotating disk, a protective box is fixedly installed on the upper surface of the fixed plate, a No. 4 motor is fixedly installed in the protective box, a third gear is fixedly installed on the bottom end of the No. 4 motor, the third gear and the gear ring are meshed, a fixing rod is fixedly installed on the upper surface of the placing disk, and the end of the fixing rod away from the placing disk is fixedly connected to the rotating disk.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, five inner tubes are installed by a turntable, and then the turntable is driven to rotate by a No. 3 motor to adjust the position of the inner tube. The inner tube is also driven downward by an electric telescopic rod for sampling, thereby achieving multiple samplings in one drilling, which is convenient for daily use. The inner tube and the outer tube are installed by threads, which is convenient for installation and disassembly of the inner tube.

[0010] 2. In the present invention, the inner tube is limited by a rotating wheel so that the inner tube is in a vertical state, which is convenient for taking out the sample soil in the inner tube, and the push rod No. 4 motor drives the rotating disk and the placement disk to rotate, so that the storage box and the inner tube change their positions at the same time, avoiding the situation where two kinds of sample soil are placed in the same storage box when taking out the sample soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the support frame of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the mounting plate of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the drill bit of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the turntable of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the inner tube of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the sealing cover of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the mounting frame of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the rotating disk of the present invention.

[0013] In the figure: 1, bottom plate; 11, support frame; 12, installation box; 13, motor No. 1; 14, first bevel gear; 15, second bevel gear; 16, screw rod; 2, base; 21, installation frame; 22, cylinder; 23, push rod; 24, placement plate; 241, fixing rod; 25, storage box; 26, fixing plate; 27, rotating plate; 271, gear ring; 28, protection box; 281, motor No. 4; 29, third gear; 3, installation plate; 31, slider; 32, rotating rod; 33, fixing box; 3 4. No. 2 motor; 35. Mounting plate; 36. Fixing bar; 37. Sliding bar; 38. Screw; 4. Drill bit; 41. Turntable; 42. Connecting rod; 43. No. 3 motor; 44. First gear; 45. Second gear; 46. Electric telescopic rod; 47. Sealing cover; 48. Second spring; 5. Outer tube; 51. Limit block; 52. First spring; 53. Inner tube; 54. Push plate; 55. Limit bar; 6. Limit assembly; 61. Moving frame; 62. Rotating wheel; 63. Moving block; 64. Third spring. DETAILED DESCRIPTION

[0014] 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.

[0015] Example: Figure 1-9 As shown, the present invention provides a sampling device for geothermal resource exploration, including a base plate 1, a support frame 11 is fixedly installed on the upper surface of the base plate 1, a mounting plate 3 is slidably installed between the support frames 11, and is used to install a mounting disk 35 and drive the mounting disk 35 to move, the mounting disk 35 is rotatably installed on the lower surface of the mounting plate 3, a rotating rod 32 is detachably installed in the mounting disk 35, a drill bit 4 is threadedly connected to the lower surface of the rotating rod 32, a rotating disk 41 is rotatably installed in the drill bit 4, five outer tubes 5 are slidably installed in the rotating disk 41, the inner threads of the outer tubes 5 are connected to the inner tubes 5, and the movable bottom end of the inner tube 53 is movably inserted into the underground for storing samples. When in use, when the inner tube 53 is inserted into the underground, the sample soil enters the inner tube 53, and the sampling of the sample soil is completed, so that the sample soil can be stored.

[0016] A No. 3 motor 43 is fixedly installed in the drill bit 4 for driving the turntable 41 to rotate. When in use, the No. 3 motor 43 is turned on to drive the first gear 44 to rotate, and the second gear 45 is driven to rotate through the rotation of the first gear 44, and the connecting rod 42 is driven to rotate through the rotation of the second gear 45, and the turntable 41 is driven to rotate through the rotation of the connecting rod 42. The top of the No. 3 motor 43 is fixedly installed with the first gear 44, and the first gear 44 is meshedly connected with the second gear 45. The lower surface of the second gear 45 is fixedly installed with the connecting rod 42, and the end of the connecting rod 42 away from the second gear 45 is fixedly connected to the turntable 41. An electric telescopic rod 46 is fixedly installed in the drill bit 4, and the bottom end of the electric telescopic rod 46 is in active contact with the upper surface of the outer tube 5, so as to drive the outer tube 5 to move. When in use, when the bottom end of the electric telescopic rod 46 is in contact with the outer tube 5, the electric telescopic rod 46 is turned on to drive the outer tube 5 to move.

[0017] By adopting the above technical solution, the third motor 43 can drive the turntable 41 to rotate.

[0018] Two limit blocks 51 are fixedly installed on the outer surface of the outer tube 5, and the limit blocks 51 are slidably arranged inside the turntable 41. A first spring 52 is fixedly installed on the lower surface of the limit blocks 51. One end of the first spring 52 away from the limit blocks 51 is fixedly connected to the inside of the turntable 41, and is used to drive the outer tube 5 to move upward. When in use, the outer tube 5 is driven to move downward by the electric telescopic rod 46. At this time, the first spring 52 extends under the action of external force. When the electric telescopic rod 46 moves upward, the first spring 52 contracts when the external force disappears, driving the outer tube 5 to move upward.

[0019] By adopting the above technical solution, the first spring 52 can drive the outer tube 5 to move upward.

[0020] A sealing cover 47 is rotatably installed on the lower surface of the drill bit 4, and the bottom end of the inner tube 53 is in movably contact with the upper surface of the sealing cover 47. A second spring 48 is fixedly installed on the outer surface of the rotating shaft of the sealing cover 47. The end of the second spring 48 away from the rotating shaft is fixedly connected to the inside of the drill bit 4 to drive the sealing cover 47 to rotate. When in use, when the outer tube 5 moves downward, it drives the inner tube 53 to move downward. When the bottom end of the inner tube 53 contacts the sealing cover 47, the sealing cover 47 is pushed to swing downward, so that the inner tube 53 extends out of the drill bit 4 and is inserted into the underground. At this time, the second spring 48 is wound under the action of external force. When the inner tube 53 moves upward to the inside of the drill bit 4, the second spring 48 releases the winding force when the external force disappears, drives the sealing cover 47 to rotate, and makes the sealing cover 47 return to its original position.

[0021] By adopting the above technical solution, the second spring 48 can drive the sealing cover 47 to rotate.

[0022] A push plate 54 is slidably installed in the inner tube 53, and a limit strip 55 is fixedly installed on the outer surface of the push plate 54. The limit strip 55 is slidably set inside the inner tube 53. Two limit grooves are provided in the inner tube 53, and the limit strip 55 is slidably set inside the limit grooves, so that the push plate 54 can only move along the limit grooves.

[0023] By adopting the above technical solution, the push plate 54 can move along the limiting groove.

[0024] Slide blocks 31 are fixedly installed on both sides of the mounting plate 3, and the slide blocks 31 are slidably arranged inside the support frame 11. A mounting box 12 is fixedly installed on the side of the support frame 11, and a No. 1 motor 13 is fixedly installed in the mounting box 12 to drive the mounting plate 3 to move. When in use, turn on the No. 1 motor 13 to drive the first bevel gear 14 to rotate, and the second bevel gear 15 is driven to rotate by the rotation of the first bevel gear 14, and the screw rod 16 is driven to rotate by the rotation of the second bevel gear 15, and the slide block 31 is moved by the rotation of the screw rod 16, and the mounting plate 3 is moved by the movement of the slide block 31. Two first bevel gears 14 are fixedly installed on the outer surface of the output shaft of the No. 1 motor 13, and the first bevel gear 14 is meshedly connected with the second bevel gear 15, and the lower surface of the second bevel gear 15 is fixedly installed with a screw rod 16, and the slide block 31 is threadedly connected to the screw rod 16.

[0025] By adopting the above technical solution, the first motor 13 can drive the mounting plate 3 to move.

[0026] A fixing box 33 is fixedly installed on the upper surface of the mounting plate 3, and a No. 2 motor 34 is fixedly installed in the fixing box 33, which is used to drive the mounting plate 35 to rotate. When in use, the No. 2 motor 34 is turned on to drive the mounting plate 35 to rotate, and the bottom end of the No. 2 motor 34 is fixedly connected to the mounting plate 35, and two fixing bars 36 are slidably installed in the mounting plate 35, and sliding bars 37 are fixedly installed on both sides of the fixing bars 36. The sliding bars 37 are slidably set inside the mounting plate 35, and the fixing bars 36 are movably carded inside the rotating rod 32 to limit the rotating rod 32. When in use, when the fixing bars 36 are carded inside the rotating rod 32, the rotating rod 32 cannot move. When the fixing bars 36 are disengaged from the rotating rod 32, the rotating rod 32 can move, thereby limiting the rotating rod 32. Two screws 38 are rotatably installed on the outer surface of the mounting plate 35, and the fixing bars 36 are threadedly connected to the screws 38.

[0027] By adopting the above technical solution, the fixing bar 36 can limit the rotating rod 32 .

[0028] A base 2 is fixedly installed on the side of the bottom plate 1 away from the installation box 12, which is used to place the disk 24 and the mounting frame 21 for installation. A placement disk 24 is rotatably installed on the upper surface of the base 2, and five storage boxes 25 are slidably installed in the placement disk 24. A mounting frame 21 is fixedly installed on the upper surface of the base 2, and a fixed plate 26 is fixedly installed between the mounting frames 21. A rotating disk 27 is rotatably installed in the fixed plate 26, and an array of placement slots are provided in the rotating disk 27. The storage boxes 25 and the placement slots correspond one to one. Five groups of limit assemblies 6 are arranged in the rotating disk 27. A cylinder 22 is fixedly installed on the upper surface of the mounting frame 21, and a push rod 23 is fixedly installed on the bottom end of the cylinder 22. The bottom end of the push rod 23 is in movably contact with the upper surface of the push plate 54, which is used to drive the push plate 54 to move. When in use, the cylinder 22 is opened to drive the push rod 23 to move, and the push plate 54 is driven to move by the movement of the push rod 23.

[0029] By adopting the above technical solution, the cylinder 22 can drive the push plate 54 to move.

[0030] The limiting assembly 6 includes a moving frame 61, in which a rotating wheel 62 is rotatably installed, and the outer surface of the rotating wheel 62 movably contacts the inner tube 53. Moving blocks 63 are fixedly installed on both sides of the moving frame 61, and the moving blocks 63 are slidably arranged inside the rotating disk 27. The sides of the moving blocks 63 that are away from each other are fixedly installed with third springs 64, and one end of the third spring 64 away from the moving block 63 is fixedly connected to the inside of the rotating disk 27 to drive the moving frame 61 to move. In use, when the inner tube 53 is inserted, the outer surface of the inner tube 53 contacts the outer surface of the rotating wheel 62, pushing the rotating wheel 62 to move outward, and the moving frame 61 is driven to move outward by the movement of the rotating wheel 62. At this time, the third spring 64 is squeezed and contracted. When the inner tube 53 is pulled out, the third spring 64 releases the contraction force, pushing the moving block 63 to move inward, and the moving frame 61 is driven to move by the movement of the moving block 63.

[0031] By adopting the above technical solution, the third spring 64 can drive the moving frame 61 to move.

[0032] A gear ring 271 is fixedly installed on the outer surface of the rotating disk 27, a protective box 28 is fixedly installed on the upper surface of the fixed plate 26, and a No. 4 motor 281 is fixedly installed in the protective box 28 to drive the rotating disk 27 to rotate. When in use, the No. 4 motor 281 is turned on to drive the third gear 29 to rotate, and the gear ring 271 is driven to rotate by the rotation of the third gear 29, and the rotating disk 27 is driven to rotate by the rotation of the gear ring 271. The third gear 29 is fixedly installed on the bottom end of the No. 4 motor 281, and the third gear 29 and the gear ring 271 are meshed. A fixing rod 241 is fixedly installed on the upper surface of the placement disk 24, and the end of the fixing rod 241 away from the placement disk 24 is fixedly connected to the rotating disk 27.

[0033] By adopting the above technical solution, the fourth motor 281 can drive the rotating disk 27 to rotate.

[0034] Working principle: first, screw the drill bit 4 into the bottom end of the rotating rod 32 to complete the installation of the drill bit 4, then insert the other end into the mounting plate 35, rotate the screw rod 38 to drive the fixing bar 36 to move, so that the fixing bar 36 is clamped in the rotating rod 32 to complete the installation of the rotating rod 32, then turn on the No. 2 motor 34 to drive the mounting plate 35 to rotate, and the rotating rod 32 is driven to rotate by the rotation of the mounting plate 35, and the drill bit 4 is driven to rotate by the rotation of the rotating rod 32, and then turn on the No. 1 motor 13 to drive the first bevel gear 14 to rotate, and the second bevel gear 15 is driven to rotate by the rotation of the first bevel gear 14, and the screw rod 16 is driven to rotate by the rotation of the second bevel gear 15, and the slider 31 is driven to move by the rotation of the screw rod 16, and the mounting plate 3 is driven to move by the movement of the slider 31, and the The movement of the mounting plate 3 drives the mounting plate 35 to move, and the movement of the mounting plate 35 drives the rotating rod 32 to move, and the movement of the rotating rod 32 drives the drill bit 4 to move, so that the drill bit 4 moves downward and drills into the underground. Then, when the corresponding position is reached, the No. 2 motor 34 and the No. 1 motor 13 are turned off, and the No. 3 motor 43 is turned on to drive the first gear 44 to rotate, and the second gear 45 is driven to rotate by the rotation of the first gear 44, and the connecting rod 42 is driven to rotate by the rotation of the second gear 45, and the rotating disk 41 is driven to rotate by the rotation of the connecting rod 42. The position of the outer tube 5 is adjusted by the rotation of the rotating disk 41, so that the bottom end of the electric telescopic rod 46 is in contact with the top end of the outer tube 5, and the electric telescopic rod 46 is turned on to drive the outer tube 5 to move, and the inner tube 53 is moved by the movement of the outer tube 5. The inner tube 53 is moved to insert into the underground for sampling. At this time, the first spring 52 is extended under the action of external force, and the sealing cover 47 is pushed to swing downward when the inner tube 53 moves downward. At this time, the second spring 48 is rolled up under the action of external force. When the sampling is completed, the electric telescopic rod 46 is opened to move upward. At this time, the first spring 52 contracts when the external force disappears, driving the outer tube 5 to move upward, thereby driving the inner tube 53 to move to the inside of the drill bit 4. At the same time, the second spring 48 releases the winding force when the external force disappears, driving the sealing cover 47 to rotate, so that the sealing cover 47 returns to its original position, and then the No. 2 motor 34 and the No. 1 motor 13 are turned on to make the drill bit 4 continue to move downward. When it drops to the corresponding position, the above operation is repeated to complete the sampling. Finally, After the sample is completed, the drill bit 4 is rotated to separate the drill bit 4 and the rotating rod 32, the electric telescopic rod 46 is opened to push the outer tube 5 downward to make the inner tube 53 extend out of the drill bit 4, the inner tube 53 is rotated to take out the inner tube 53, and the taken out inner tube 53 is inserted into the placement plate 24. At this time, when the outer surface of the inner tube 53 contacts the rotating wheel 62, the movable frame 61 is pushed to move outward. When the inner tube 53 is fully inserted, the inner tube 53 is limited by the rotating wheel 62 to make the inner tube 53 in a vertical state, the cylinder 22 is opened to drive the push rod 23 to move, and the movement of the push rod 23 drives the push plate 54 to move. The sample soil in the inner tube 53 is pushed out by the movement of the push plate 54, so that the sample soil enters the storage box 25, and then the fourth motor 281 is turned on to drive the third gear 29 to rotate.The rotation of the third gear 29 drives the gear ring 271 to rotate, and the rotation of the gear ring 271 drives the rotating disk 27 to rotate, and the rotation of the rotating disk 27 changes the position of the inner tube 53. At the same time, the rotation of the rotating disk 27 drives the fixing rod 241 to rotate, and the rotation of the fixing rod 241 drives the placement disk 24 to rotate, and the rotation of the placement disk 24 drives the storage box 25 to move, and the sample soil in the inner tube 53 is pushed out in sequence, and the sample soil is taken out.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A sampling device for geothermal resource exploration, comprising a bottom plate (1), characterized in that: A support frame (11) is fixedly mounted on the upper surface of the base plate (1), a mounting plate (3) is slidably mounted between the support frames (11), a mounting plate (35) is rotatably mounted on the lower surface of the mounting plate (3), a rotating rod (32) is detachably mounted in the mounting plate (35), a drill bit (4) is threadedly connected to the lower surface of the rotating rod (32), a rotating disk (41) is rotatably mounted in the drill bit (4), five outer tubes (5) are slidably mounted in the rotating disk (41), the inner threads of the outer tubes (5) are connected to the inner tubes (53), and the movable bottom ends of the inner tubes (53) are movably inserted into the ground.

2. A sampling device for geothermal resource exploration according to claim 1, characterized in that: A third motor (43) is fixedly installed in the drill bit (4), a first gear (44) is fixedly installed on the top of the third motor (43), the first gear (44) is meshingly connected with a second gear (45), a connecting rod (42) is fixedly installed on the lower surface of the second gear (45), one end of the connecting rod (42) away from the second gear (45) is fixedly connected to the turntable (41), and an electric telescopic rod (46) is fixedly installed in the drill bit (4), the bottom end of the electric telescopic rod (46) is in movable contact with the upper surface of the outer tube (5).

3. A sampling device for geothermal resource exploration according to claim 1, characterized in that: Two limit blocks (51) are fixedly mounted on the outer surface of the outer tube (5), the limit blocks (51) are slidably arranged inside the rotating disk (41), a first spring (52) is fixedly mounted on the lower surface of the limit blocks (51), and one end of the first spring (52) away from the limit blocks (51) is fixedly connected to the inside of the rotating disk (41).

4. A sampling device for geothermal resource exploration according to claim 1, characterized in that: A sealing cover (47) is rotatably mounted on the lower surface of the drill bit (4), the bottom end of the inner tube (53) is in movable contact with the upper surface of the sealing cover (47), a second spring (48) is fixedly mounted on the outer surface of the rotating shaft of the sealing cover (47), and one end of the second spring (48) away from the rotating shaft is fixedly connected to the inside of the drill bit (4).

5. A sampling device for geothermal resource exploration according to claim 1, characterized in that: A push plate (54) is slidably mounted inside the inner tube (53), a limit strip (55) is fixedly mounted on the outer surface of the push plate (54), and the limit strip (55) is slidably disposed inside the inner tube (53).

6. A sampling device for geothermal resource exploration according to claim 1, characterized in that: Slide blocks (31) are fixedly mounted on both sides of the mounting plate (3), and the slide blocks (31) are slidably arranged inside the support frame (11). A mounting box (12) is fixedly mounted on the side of the support frame (11), and a No. 1 motor (13) is fixedly mounted inside the mounting box (12). Two first bevel gears (14) are fixedly mounted on the outer surface of the output shaft of the No. 1 motor (13), and the first bevel gear (14) is meshingly connected with a second bevel gear (15). A screw rod (16) is fixedly mounted on the lower surface of the second bevel gear (15), and the slide block (31) is threadedly connected to the screw rod (16).

7. A sampling device for geothermal resource exploration according to claim 1, characterized in that: A fixing box (33) is fixedly mounted on the upper surface of the mounting plate (3), a second motor (34) is fixedly mounted in the fixing box (33), the bottom end of the second motor (34) is fixedly connected to the mounting plate (35), two fixing bars (36) are slidably mounted in the mounting plate (35), a sliding bar (37) is fixedly mounted on both sides of the fixing bar (36), the sliding bar (37) is slidably arranged inside the mounting plate (35), and the fixing bar (36) is movably clamped inside the rotating rod (32), and two screw rods (38) are rotatably mounted on the outer surface of the mounting plate (35), and the fixing bar (36) is threadedly connected to the screw rod (38).

8. A sampling device for geothermal resource exploration according to claim 1, characterized in that: A base (2) is fixedly mounted on the side of the bottom plate (1) away from the installation box (12); a placement plate (24) is rotatably mounted on the upper surface of the base (2); five storage boxes (25) are slidably mounted in the placement plate (24); a mounting frame (21) is fixedly mounted on the upper surface of the base (2); a fixed plate (26) is fixedly mounted between the mounting frames (21); a rotating plate (27) is rotatably mounted in the fixed plate (26); an array of placement slots are provided in the rotating plate (27); the storage boxes (25) and the placement slots correspond one to one; five groups of limit assemblies (6) are provided in the rotating plate (27); a cylinder (22) is fixedly mounted on the upper surface of the mounting frame (21); a push rod (23) is fixedly mounted at the bottom end of the cylinder (22); the bottom end of the push rod (23) is in active contact with the upper surface of the push plate (54).

9. A sampling device for geothermal resource exploration according to claim 8, characterized in that: The limit assembly (6) comprises a moving frame (61), a rotating wheel (62) is rotatably mounted inside the moving frame (61), the outer surface of the rotating wheel (62) movably contacts the inner tube (53), moving blocks (63) are fixedly mounted on both sides of the moving frame (61), the moving blocks (63) are slidably arranged inside the rotating disk (27), and third springs (64) are fixedly mounted on the sides of the moving blocks (63) that are away from each other, and one end of the third spring (64) away from the moving block (63) is fixedly connected to the inside of the rotating disk (27).

10. A sampling device for geothermal resource exploration according to claim 8, characterized in that: A gear ring (271) is fixedly mounted on the outer surface of the rotating disk (27), a protective box (28) is fixedly mounted on the upper surface of the fixed plate (26), a No. 4 motor (281) is fixedly mounted inside the protective box (28), a third gear (29) is fixedly mounted on the bottom end of the No. 4 motor (281), the third gear (29) and the gear ring (271) are meshed, and a fixing rod (241) is fixedly mounted on the upper surface of the placement disk (24), and one end of the fixing rod (241) away from the placement disk (24) is fixedly connected to the rotating disk (27).

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