Deep sampling method for geological exploration

Abstract

The invention discloses a deep sampling method for geological exploration, and belongs to the field. A deep sampling method for geological exploration comprises the following steps: step 1, moving equipment to a to-be-sampled area, and fixing the equipment; 2, performing vibration type drilling on the to-be-sampled area; thirdly, soil discharged in the drilling process is conveyed to the side away from the drilled hole; step 4, after drilling to a specified depth, sampling the soil; 5, after the soil sample is taken out, backfilling is conducted on the soil accumulated at the drilled hole; the problems that when deep geology is sampled, operation is tedious, consumed time is long, the accuracy of geological survey results is poor, drilling efficiency is low, and equipment is prone to being damaged can be solved.

Description

Technical Field

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

[0002] Geological survey refers to the investigation and research of geological conditions such as rocks, stratigraphic structures, minerals, groundwater, and landforms in a certain area. The main purpose is to obtain original data on engineering geological conditions and engineering geological demonstrations for the construction site, and provide a basis for design and construction. During the survey process, it is usually necessary to take samples of deep geological soil and test the samples to understand the nature of the strata. This can not only provide basic data for engineering construction, evaluate engineering geological conditions, and ensure that the design plan meets the actual geological conditions, but also find minerals for the country, ensure national energy and resource security, and serve the national economy and people's livelihood.

[0003] At present, when sampling deep geology, a drill is generally used to drill holes, and then sampling is performed through specific equipment. Not only is the operation cumbersome, but it also takes a long time for deep geological sampling. In addition, when sampling, shallow soil is easily mixed in, affecting the results of geological surveys. In addition, when sampling hard strata, the drilling efficiency is low and it is easy to cause equipment damage. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art of sampling deep geology, such as complicated operation, long time consumption, poor accuracy of geological survey results, low drilling efficiency and easy damage of equipment, and to propose a deep sampling method for geological survey.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A deep sampling method for geological exploration comprises the following steps: Step 1: Move the device to the area to be sampled and fix it; Step 2: Perform “vibration” drilling on the area to be sampled; Step 3: transport the soil expelled during the drilling process to the side away from the drill hole; Step 4: After drilling to the specified depth, sample the soil; Step 5: After taking out the soil sample, backfill the soil accumulated at the drill hole.

[0006] In order to facilitate drilling of deep geological layers, preferably, it includes a base, on which are rotatably connected a plurality of groups of fixed rotating shafts, a screw is inserted at one end of the fixed rotating shaft away from the base, a first spring is fixedly connected between the screw and the fixed rotating shaft, a plurality of groups of limiting members are arranged between the screw and the fixed rotating shaft, and lifting plates are arranged on the plurality of groups of screws, wherein the limiting members are fixedly connected to the outer wall of the screw, the limiting members are slidably connected to the fixed rotating shaft, and a driving unit is arranged on the lifting plate.

[0007] In order to ensure stable drilling and reduce energy loss, the driving unit further includes a driving motor fixedly connected to the lifting plate, the output end of the driving motor away from the lifting plate is fixedly connected to the driving wheel, the end of the screw away from the base is fixedly connected to the driven wheel, a belt is sleeved between the driving wheel and the driven wheel, the output end of the driving motor away from the driving wheel is fixedly connected to the drilling mechanism; the top of the screw is fixedly connected to the side close to the lifting plate with a first compression member.

[0008] In order to reduce the splash of soil during the drilling process and facilitate backfilling of soil, it further includes a groove opened on the inner wall of the base, a protective tube is rotatably connected inside the groove, a rack is fixedly connected to the outer wall of the protective tube, a gear meshing with the rack is fixedly connected to the fixed shaft, a guide plate is fixedly connected to the lower inner side of the protective tube, and multiple groups of second compression members are fixedly connected to the top of the protective tube, wherein the guide plate is planar and spiral, and the drilling mechanism is located at the center of the guide plate.

[0009] In order to facilitate geological sampling while drilling, the drilling mechanism further includes a spiral rod connected to the output end of the driving motor, the interior of the spiral rod is provided with an installation cavity, the interior of the installation cavity is fixedly connected to a support assembly, the end of the support assembly away from the spiral rod is fixedly connected to a drill bit, a second spring is fixedly connected between the drill bit and the installation cavity, the outer wall of the drill bit is in contact with the inner wall of the installation cavity, and the drill bit is arranged in a conical shape, and the second spring is sleeved on the outside of the support assembly.

[0010] In order to improve the efficiency of geological drilling, the support assembly further includes a fixed cylinder, a movable rod and a movable plate are slidably connected inside the fixed cylinder, a third spring is fixedly connected between the movable plate and the movable rod, wherein a vibration chamber is formed between the movable plate and the movable rod, and the vibration chamber is connected to the fixed rotating shaft through a pipe.

[0011] In order to ensure stability during the drilling process, further, it also includes a plurality of groups of positioning grooves opened on the inner wall of the fixed cylinder near the side of the movable plate, the movable plate is provided with an installation groove on the side near the fixed cylinder, the interior of the installation groove is fixedly connected with a fourth spring, the end of the fourth spring is fixedly connected with a positioning piece slidably connected to the installation groove, the interior of the installation groove is fixedly connected with an electromagnet, wherein the side of the positioning piece near the electromagnet is made of magnetic material, the electromagnet is magnetic when energized, and has the same magnetism as the positioning piece, and the electromagnet is electrically connected to the second compression piece.

[0012] In order to facilitate sampling of deep geology, it further includes a cavity symmetrically opened on the inner wall of the spiral rod, the interior of the cavity is rotatably connected to a baffle, the interior of the cavity is fixedly connected to a lifting cylinder, the end of the lifting cylinder is fixedly connected to a push plate, wherein the size of the two groups of baffles matches the size of the spiral rod, the lifting cylinder is connected to the second compression member through a pipeline, the push plate is fitted with the baffle, and when the push plate is at the maximum height, the two groups of baffles are in a horizontal state.

[0013] In order to facilitate the collection of sampled soil, it further includes a slide groove opened on the side of the spiral rod close to the cavity, a fifth spring is fixedly connected to the inside of the slide groove, and a block slidably connected to the slide groove is fixedly connected to the end of the fifth spring, a connecting pipe is connected between the slide groove and the fixed cylinder, an air venting part connected to the slide groove is arranged on the spiral rod, and a slot matching the block is arranged on the push plate.

[0014] In order to ensure the stability of the equipment during operation, it further includes a plurality of groups of pins fixedly connected to the side of the base away from the fixed rotating shaft, and the ends of the pins are arranged in a conical shape for fixing the base to the ground.

[0015] Compared with the prior art, the present invention provides a deep sampling method for geological exploration, which has the following beneficial effects: 1. The deep sampling method used in geological survey can drive the drilling mechanism to rotate through the driving unit, and at the same time drive the drilling mechanism to move downward along the geology, so as to realize drilling in the deep geological layer. In the process of drilling, the soil accumulated in the hole can be transported to the side away from the borehole. On the one hand, it can reduce the impact of the accumulated soil on the borehole, and on the other hand, it can reduce the splashing of soil during drilling, ensuring the equipment while preventing the splashing soil from causing damage to the staff.

[0016] 2. The deep sampling method used in geological survey can ensure the stability of the drilling process through the support assembly. When the drill bit encounters greater resistance, the height of the screw is adjusted, and then the drill hole collides with the geology, causing the drill bit to drill in a vibrating manner, which can not only improve the efficiency of geological drilling, but also reduce the wear of the equipment during operation and increase the service life of the equipment.

[0017] 3. The deep sampling method for geological survey compresses the second compression member through the lifting plate, so that the support assembly can be in a retractable state, so that the drill bit can be stored in the spiral rod, thereby storing the deep soil in the spiral rod. At the same time, under the action of the lifting cylinder, the baffle is driven to close the spiral rod, so that the soil sample can be temporarily stored in the spiral rod. While drilling, the deep soil can be sampled. It is not only simple to operate, but also shortens the time spent on sampling. In addition, it can also prevent the shallow soil from being mixed in the sampling process, thereby improving the accuracy of the geological survey results.

[0018] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention can overcome the problems of complicated operation, long time consumption, poor accuracy of geological survey results, low drilling efficiency and easy damage of equipment when sampling deep geology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a deep sampling method for geological survey proposed by the present invention Figure 1 ; Figure 2 A schematic diagram of a deep sampling method for geological survey proposed by the present invention Figure 2 ; Figure 3 A partial structural schematic diagram of a deep sampling method for geological exploration proposed by the present invention; Figure 4 A schematic diagram of a partial cross-sectional structure of a fixed rotating shaft and a screw in a deep sampling method for geological exploration proposed by the present invention; Figure 5 A schematic diagram of a partial cross-sectional structure of a drilling mechanism in a deep sampling method for geological exploration proposed by the present invention; Figure 6 A deep sampling method for geological exploration proposed by the present invention Figure 5 Schematic diagram of the structure of part A; Figure 7 A deep sampling method for geological exploration proposed by the present invention Figure 5 The structural diagram of part B; Figure 8 A partial structural schematic diagram of a loosening mechanism for a deep sampling method for geological exploration proposed by the present invention; Fig. 9 A deep sampling method for geological exploration proposed by the present invention Figure 5 Schematic diagram of the structure of part C.

[0020] In the figure: 1, base; 2, pin shaft; 3, fixed shaft; 4, screw rod; 5, first spring; 6, limiter; 7, lifting plate; 8, driving motor; 9, driving wheel; 10, driven wheel; 11, belt; 12, first compression member; 13, drilling mechanism; 131, screw rod; 132, installation cavity; 133, support assembly; 1331, fixed cylinder; 1332, movable rod; 1333, third spring; 1334, movable plate; 1335, positioning groove; 1336, installation groove; 1337, fourth spring; 1338, positioning member; 1339, electromagnet; 134, second spring; 135 , drill bit; 136, cavity; 137, baffle; 138, lifting cylinder; 139, push plate; 1310, slot; 1311, slide; 1312, fifth spring; 1313, block; 1314, connecting pipe; 1315, air release member; 14, groove; 15, protective tube; 16, rack; 17, gear; 18, guide plate; 19, second compression member; 20, rotating chamber; 21, loosening mechanism; 211, first rotating ring; 212, second rotating ring; 213, scraper; 214, limit groove; 215, horizontal groove; 216, sixth spring; 217, horizontal axis; 218, air venting plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Embodiment 1

[0023] A deep sampling method for geological exploration comprises the following steps: Step 1: Move the device to the area to be sampled and fix it; Reference Figure 1-Figure 3 , and also includes a plurality of groups of pins 2 fixedly connected to the side of the base 1 away from the fixed rotating shaft 3, and the ends of the pins 2 are set in a conical shape for fixing the base 1 to the ground.

[0024] The specific structure of the pin 2 can refer to the technical solutions in the prior art. Those skilled in the art will know that it will not be elaborated here. The pin 2 can adopt a detachable fixed connection method. Before drilling, the pin 2 can be inserted into the geology to fix the equipment to ensure the stability of the sampling process.

[0025] Step 2: Perform “vibration” drilling on the area to be sampled; Reference Figure 1 , Figure 2 and Figure 4 , including a base 1, on which are rotatably connected a plurality of fixed shafts 3, a screw 4 is inserted at one end of the fixed shaft 3 away from the base 1, a first spring 5 is fixedly connected between the screw 4 and the fixed shaft 3, a plurality of limit members 6 are arranged between the screw 4 and the fixed shaft 3, a lifting plate 7 is arranged on the plurality of screw members 4, wherein the limit members 6 are fixedly connected to the outer wall of the screw 4, the limit members 6 are slidably connected to the fixed shaft 3, and a driving unit is arranged on the lifting plate 7.

[0026] It needs to be explained that a sealed connection is adopted between the screw 4 and the fixed shaft 3. The limiter 6 can ensure that the fixed shaft 3 and the screw 4 rotate synchronously while adjusting the relative position between the screw 4 and the fixed shaft 3. A threaded connection is adopted between the lifting plate 7 and the screw 4, that is, when the screw 4 rotates, it can drive the lifting plate 7 to move upward or downward along the screw 4, thereby realizing geological drilling.

[0027] Reference Figure 1 The driving unit includes a driving motor 8 fixedly connected to the lifting plate 7, an output end of the driving motor 8 away from the lifting plate 7 is fixedly connected to a driving wheel 9, an end of the screw 4 away from the base 1 is fixedly connected to a driven wheel 10, a belt 11 is sleeved between the driving wheel 9 and the driven wheel 10, and an output end of the driving motor 8 away from the driving wheel 9 is fixedly connected to a drilling mechanism 13; a first compression member 12 is fixedly connected to the top of the screw 4 close to the lifting plate 7.

[0028] The diameter ratio between the driving wheel 9 and the driven wheel 10 can be adjusted according to actual conditions (such as the hardness of the geology), that is, the drilling efficiency can be adjusted. While ensuring the stability of the drilling, the friction of the equipment can be reduced. In addition, it should be explained that the contact size between the driven wheel 10 and the belt 11 is larger than the movable size of the screw 4. That is to say, when the height of the screw 4 changes, the belt 11 will not be separated from the driven wheel 10, and the outer wall of the driven wheel 10 is concave, which further improves the stability of the contact between the belt 11 and the driven wheel 10. The driving motor 8 drives the drilling mechanism 13 to rotate, which will drive the screw 4 to rotate, thereby driving the lifting plate 7 to move up or down along the screw 4 to facilitate geological drilling and sampling.

[0029] Reference Figure 1 , Figure 5 and Figure 6 The drilling mechanism 13 includes a spiral rod 131 connected to the output end of the driving motor 8, a mounting cavity 132 is provided inside the spiral rod 131, a support assembly 133 is fixedly connected inside the mounting cavity 132, a drill bit 135 is fixedly connected to one end of the support assembly 133 away from the spiral rod 131, a second spring 134 is fixedly connected between the drill bit 135 and the mounting cavity 132, the outer wall of the drill bit 135 fits the inner wall of the mounting cavity 132, and the drill bit 135 is set in a cone shape, the second spring 134 is sleeved on the outside of the support assembly 133, the support assembly 133 includes a fixed cylinder 1331, a movable rod 1332 and a movable plate 1334 are slidably connected inside the fixed cylinder 1331, a third spring 1333 is fixedly connected between the movable plate 1334 and the movable rod 1332, wherein a vibration cavity is formed between the movable plate 1334 and the movable rod 1332, and the vibration cavity is connected to the fixed rotating shaft 3 through a pipeline.

[0030] When the spiral rod 131 rotates, it will drive the drill bit 135 to rotate. When it moves downward, it can drill holes in the geology. The soil generated during the drilling process will be transported to the hole entrance along the spiral rod 131. In addition, when drilling, the positioning piece 1338 will match the positioning groove 1335 under the action of the electromagnet 1339. After the drill bit 135 contacts the ground, it will be subjected to a certain pressure. When the pressure reaches a certain value, it will drive the movable rod 1332 to move into the fixed cylinder 1331 and transport the compressed gas to between the fixed rotating shaft 3 and the screw 4, thereby driving the screw 4 to move upward when rotating to reduce the descending speed of the drill bit 135. At this time, the pressure on the drill bit 135 is reduced, and the gas flows back to the vibration chamber under the action of the third spring 1333. By repeating the above process, the drill bit 135 can drill holes in the geology in a vibrating manner, which can not only improve the efficiency of geological drilling, but also reduce the wear of the equipment during drilling, thereby extending the service life of the equipment.

[0031] Reference Figure 1 , Figure 5 and Figure 6 , and also includes a plurality of positioning grooves 1335 opened on the inner wall of the fixed cylinder 1331 near the side of the movable plate 1334, a mounting groove 1336 is opened on the side of the movable plate 1334 near the fixed cylinder 1331, a fourth spring 1337 is fixedly connected inside the mounting groove 1336, a positioning member 1338 slidably connected to the mounting groove 1336 is fixedly connected at the end of the fourth spring 1337, an electromagnet 1339 is fixedly connected inside the mounting groove 1336, wherein a side of the positioning member 1338 near the electromagnet 1339 is made of magnetic material, the electromagnet 1339 is magnetic when energized, and has the same magnetism as the positioning member 1338, and the electromagnet 1339 is electrically connected to the second compression member 19.

[0032] When the drill bit 135 reaches the specified depth, the lifting plate 7 will contact the second compression member 19, and then the electromagnet 1339 will stop energizing, and the positioning member 1338 will be stored in the mounting groove 1336. Then, the drill bit 135 will drive the movable rod 1332 and the movable plate 1334 to move into the fixed tube 1331 under the action of pressure. As the spiral rod 131 continues to descend, part of the soil will enter the spiral rod 131, thereby realizing the sampling of deep soil.

[0033] Step 3: transport the soil expelled during the drilling process to the side away from the drill hole; Reference Figure 1-Figure 3 , and also includes a groove 14 opened on the inner wall of the base 1, a protective tube 15 is rotatably connected inside the groove 14, a rack 16 is fixedly connected to the outer wall of the protective tube 15, a gear 17 meshing with the rack 16 is fixedly connected to the fixed shaft 3, a guide plate 18 is fixedly connected to the lower part of the inner side of the protective tube 15, and a plurality of second compression members 19 are fixedly connected to the top of the protective tube 15, wherein the guide plate 18 is planar and spiral, and the drilling mechanism 13 is located at the center of the guide plate 18.

[0034] When drilling a hole in the geology, the screw 4 will drive the gear 17 to rotate, and under the action of the rack 16, it will drive the protective tube 15 to rotate at the hole entrance, and under the action of the guide plate 18, the soil accumulated at the hole entrance will be transported to the side away from the hole entrance to reduce the impact of the accumulated soil on the drilling (such as hole wall collapse, slow drilling speed, reduced drilling quality, etc.), and after the drilling is completed, the soil outside the hole entrance is backfilled into the borehole to reduce the impact of the drilling on the geology.

[0035] Step 4: After drilling to the specified depth, sample the soil; Reference Figure 5 and Figure 7, and also includes a cavity 136 symmetrically opened on the inner wall of the spiral rod 131, a baffle 137 is rotatably connected inside the cavity 136, a lifting cylinder 138 is fixedly connected inside the cavity 136, and a push plate 139 is fixedly connected to the end of the lifting cylinder 138, wherein the size of the two sets of baffles 137 matches the size of the spiral rod 131, the lifting cylinder 138 is connected to the second compression member 19 through a pipeline, the push plate 139 fits with the baffle 137, and when the push plate 139 is at the maximum height, the two sets of baffles 137 It is in a horizontal state and also includes a slide groove 1311 opened on the side of the spiral rod 131 close to the cavity 136, the interior of the slide groove 1311 is fixedly connected with a fifth spring 1312, the end of the fifth spring 1312 is fixedly connected with a block 1313 which is slidably connected to the slide groove 1311, a connecting pipe 1314 is connected between the slide groove 1311 and the fixed cylinder 1331, the spiral rod 131 is provided with a venting piece 1315 which is connected to the slide groove 1311, and the push plate 139 is provided with a slot 1310 which matches the block 1313.

[0036] As the soil is stored in the spiral rod 131, the gas compressed by the second compression component 19 will enter the lifting cylinder 138, driving the push plate 139 to move upward, thereby driving the baffle 137 to rotate horizontally, so as to seal the spiral rod 131 and temporarily store the soil sample in the spiral rod 131. At the same time, the position of the baffle 137 is limited by the block 1313 and the slot 1310. When it is necessary to collect the soil sample, the block 1313 and the slot 1310 can be separated from the baffle 137 through the air leaking component 1315. The baffle 137 will rotate to the initial position under the action of the gravity of the soil sample, and the soil sample can fall to the outside. The air leaking component 1315 can adopt a manual trigger component, which is a conventional means in the prior art and will not be elaborated on.

[0037] Step 5: After taking out the soil sample, backfill the soil accumulated at the drill hole. Embodiment 2

[0038] Reference Figure 5 , Figure 8 and Fig. 9A deep sampling method for geological exploration is basically the same as that of the first embodiment. Furthermore, a rotating cavity 20 is provided on the inner wall of the spiral rod 131, and a loosening mechanism 21 is provided inside the rotating cavity 20. The loosening mechanism 21 includes a first rotating ring 211 and a second rotating ring 212 rotatably connected in the rotating cavity 20, and a scraper 213 is fixedly connected between the first rotating ring 211 and the second rotating ring 212. A plurality of groups of limiting grooves 214 are provided on the outer wall of the first rotating ring 211, and a transverse groove 214 is symmetrically provided on one side of the spiral rod 131 near the limiting groove 214. 15, a sixth spring 216 is fixedly connected to the inside of the transverse groove 215, and a transverse shaft 217 matching the limiting groove 214 is fixedly connected to the end of the sixth spring 216, and a plurality of groups of air vent plates 218 are fixedly connected to the outer wall of the second rotating ring 212, wherein it should be noted that the scraper 213 and the air vent plates 218 are both spirally arranged, and the scraper 213 matches the inner wall of the spiral rod 131, and the transverse groove 215 is connected to the second compression member 19 through a pipeline, and a channel connected to the support assembly 133 is opened on the side of the spiral rod 131 close to the air vent plates 218.

[0039] In this embodiment, when soil sampling is performed, the horizontal axis 217 is located in the horizontal groove 215, that is, the first rotating ring 211 and the second rotating ring 212 rotate synchronously with the spiral rod 131, so that when sampling, the scraper 213 can have the effect of transporting the soil upward to accelerate the efficiency and effect of soil sampling; and when collecting samples, the horizontal axis 217 and the horizontal groove 215 are in a disengaged state, and the baffle 137 will rotate to the initial position under the action of gravity. When the baffles 137 are close to each other, they have a squeezing effect on the sample in the spiral rod 131, and the soil itself Under the action of gravity, the sample is prone to agglomeration, that is, it is easy to make the sample difficult to discharge under the action of its own gravity (since the baffle 137 is in the open state, part of the sample may be discharged). When the sample is discharged, the support assembly will extend outward to adsorb the gas close to the side of the air vent plate 218. Under the action of the gas and the air vent plate 218, the second rotating ring 212 will be driven to rotate, thereby driving the scraper 213 to rotate, so as to speed up the discharge of the sample and disperse the agglomerated soil to facilitate subsequent soil testing.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A deep sampling method for geological exploration, characterized in that: The steps include: Step 1: Move the device to the area to be sampled and fix it; Step 2: Perform "vibration-type" drilling on the area to be sampled; Step 3: transport the soil expelled during the drilling process to the side away from the drill hole; Step 4: After drilling to the specified depth, sample the soil; Step 5: After taking out the soil sample, backfill the soil accumulated at the drill hole.

2. A deep sampling method for geological exploration according to claim 1, characterized in that: The invention comprises a base (1), wherein a plurality of fixed rotating shafts (3) are rotatably connected to the base (1), a screw rod (4) is inserted into one end of the fixed rotating shaft (3) away from the base (1), a first spring (5) is fixedly connected between the screw rod (4) and the fixed rotating shaft (3), a plurality of limit members (6) are arranged between the screw rod (4) and the fixed rotating shaft (3), and a lifting plate (7) is arranged on the plurality of screw rods (4). The limiting member (6) is fixedly connected to the outer wall of the screw rod (4), the limiting member (6) is slidably connected to the fixed rotating shaft (3), and a driving unit is provided on the lifting plate (7).

3. A deep sampling method for geological exploration according to claim 2, characterized in that: The driving unit comprises a driving motor (8) fixedly connected to the lifting plate (7); an output end of the driving motor (8) away from the lifting plate (7) is fixedly connected to a driving wheel (9); an end of the screw rod (4) away from the base (1) is fixedly connected to a driven wheel (10); a belt (11) is sleeved between the driving wheel (9) and the driven wheel (10); and an output end of the driving motor (8) away from the driving wheel (9) is fixedly connected to a drilling mechanism (13); A first compression member (12) is fixedly connected to a side of the top end of the screw rod (4) close to the lifting plate (7).

4. A deep sampling method for geological exploration according to claim 3, characterized in that: It also includes a groove (14) formed on the inner wall of the base (1), a protective tube (15) being rotatably connected inside the groove (14), a rack (16) being fixedly connected to the outer wall of the protective tube (15), a gear (17) meshing with the rack (16) being fixedly connected to the fixed shaft (3), a guide plate (18) being fixedly connected to the lower inner side of the protective tube (15), and a plurality of second compression members (19) being fixedly connected to the top of the protective tube (15). The guide plate (18) is in a planar spiral shape, and the drilling mechanism (13) is located at the center of the guide plate (18).

5. A deep sampling method for geological exploration according to claim 4, characterized in that: The drilling mechanism (13) comprises a screw rod (131) connected to the output end of the drive motor (8); a mounting cavity (132) is provided inside the screw rod (131); a support assembly (133) is fixedly connected inside the mounting cavity (132); a drill bit (135) is fixedly connected to one end of the support assembly (133) away from the screw rod (131); a second spring (134) is fixedly connected between the drill bit (135) and the mounting cavity (132); The outer wall of the drill bit (135) fits the inner wall of the installation cavity (132), and the drill bit (135) is arranged in a conical shape. The second spring (134) is sleeved on the outside of the support assembly (133).

6. A deep sampling method for geological exploration according to claim 5, characterized in that: The support assembly (133) comprises a fixed cylinder (1331), a movable rod (1332) and a movable plate (1334) are slidably connected inside the fixed cylinder (1331), and a third spring (1333) is fixedly connected between the movable plate (1334) and the movable rod (1332). A vibration chamber is formed between the movable plate (1334) and the movable rod (1332), and the vibration chamber is connected to the fixed rotating shaft (3) via a pipeline.

7. A deep sampling method for geological exploration according to claim 6, characterized in that: It also includes a plurality of groups of positioning grooves (1335) provided on the inner wall of the fixed cylinder (1331) near the side of the movable plate (1334); a mounting groove (1336) is provided on the side of the movable plate (1334) near the fixed cylinder (1331); a fourth spring (1337) is fixedly connected inside the mounting groove (1336); a positioning member (1338) slidably connected to the mounting groove (1336) is fixedly connected at the end of the fourth spring (1337); an electromagnet (1339) is fixedly connected inside the mounting groove (1336); The side of the positioning member (1338) close to the electromagnet (1339) is made of magnetic material, the electromagnet (1339) is magnetic when energized, and has the same magnetism as the positioning member (1338), and the electromagnet (1339) is electrically connected to the second compression member (19).

8. A deep sampling method for geological exploration according to claim 7, characterized in that: It also includes a cavity (136) symmetrically opened on the inner wall of the spiral rod (131), a baffle (137) rotatably connected inside the cavity (136), a lifting cylinder (138) fixedly connected inside the cavity (136), and a push plate (139) fixedly connected to the end of the lifting cylinder (138). The dimensions of the two groups of baffles (137) match the dimensions of the screw rod (131), the lifting cylinder (138) and the second compression member (19) are connected via a pipeline, the push plate (139) fits the baffle (137), and when the push plate (139) is at a maximum height, the two groups of baffles (137) are in a horizontal state.

9. A deep sampling method for geological exploration according to claim 8, characterized in that: The invention also comprises a slide groove (1311) provided on a side of the spiral rod (131) close to the cavity (136); a fifth spring (1312) is fixedly connected inside the slide groove (1311); a clamping block (1313) slidably connected to the slide groove (1311) is fixedly connected to the end of the fifth spring (1312); a connecting pipe (1314) is connected between the slide groove (1311) and the fixed cylinder (1331); a venting member (1315) connected to the slide groove (1311) is provided on the spiral rod (131); and a clamping groove (1310) matching the clamping block (1313) is provided on the push plate (139).

10. A deep sampling method for geological exploration according to claim 2, characterized in that: It also comprises a plurality of groups of pins (2) fixedly connected to the side of the base (1) away from the fixed rotating shaft (3), wherein the ends of the pins (2) are arranged in a conical shape and are used to fix the base (1) to the ground.

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