Geological exploration sampling device

By designing a borehole enlargement and sampling device suitable for geological exploration, the problem of adaptability to boreholes of different diameters was solved, achieving automatic borehole enlargement and prevention of borehole wall collapse, and facilitating sample collection and storage.

CN223581441UActive Publication Date: 2025-11-21王成锋
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Patent Information

Application Number
CN202520010990.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2025-11-21
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

Existing geological exploration borehole enlargement equipment requires changing different drill bits to adapt to boreholes of different diameters, which is inconvenient to use.

Method used

A geological exploration sampling device was designed, comprising a borehole reaming mechanism, a support mechanism, and a sampling mechanism. The position of the drill bit is adjusted by a motor-driven gear and screw system, the support mechanism is used to prevent borehole wall collapse, and the spiral blade is used to sample and store soil samples.

Benefits of technology

It enables automatic adaptive hole enlargement for holes of different diameters, preventing hole wall collapse, and allows for convenient sampling and storage of soil samples.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a geological exploration sampling device, and belongs to the technical field of geological exploration. The geological exploration sampling device comprises a base, a reaming mechanism, a supporting mechanism and a sampling mechanism, supports are symmetrically and fixedly installed on the surface of the base, lifting tables are slidably installed in inner cavities of the supports, and the reaming mechanism comprises a first rotating shaft, a fixing base, a second rotating shaft and a lead screw. The reaming mechanism is arranged, a fourth gear is driven by a first motor to rotate, so that a third gear and a first rotating shaft are driven to rotate, drilling is conducted through a first drill bit, then a second rotating shaft is driven by a second motor to rotate, the first gear is driven to rotate, a plurality of second gears are driven to rotate, and a lead screw is driven to rotate. And after adjustment is completed, the multiple second drill bits rotate along with the first rotating shaft, synchronous reaming is carried out, and the device is suitable for reaming holes with different diameters and convenient to use.
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Description

TECHNICAL FIELD

[0001] The utility model relates to geological exploration technical field, specifically, relate to a geological exploration sampling device. BACKGROUND

[0002] Geological exploration is a process of obtaining and analyzing information about the internal structure and properties of the earth through a series of scientific and engineering methods. The main goal of this process is to understand the underground rocks, minerals, strata and other geological features in order to better understand the structure, resource distribution and geological history of the earth. It plays an important role in the fields of mineral exploration, geological disaster prediction, engineering construction and environmental protection. By thoroughly understanding the underground structure, the development and utilization of natural resources can be better planned and managed, and the risks related to geological factors can be reduced.

[0003] In order to obtain deeper and more detailed underground information, in order to better understand the geological structure, stratum characteristics and underground resource distribution, reaming work is usually carried out, however, the existing reaming equipment for geological exploration needs to replace different drill bits when reaming different diameter drill holes, which is inconvenient to use. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a geological exploration sampling device which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is realized as follows:

[0006] The utility model provides a geological exploration sampling device, including base, reaming mechanism, support mechanism and sampling mechanism, the surface of base is fixedly installed with support symmetrically, the inner chamber of support is slidably installed with lifting platform, the reaming mechanism includes

[0007] First rotation shaft, the first rotation shaft is rotatably installed on the surface of lifting platform, the first rotation shaft is fixedly installed with first drill bit at one end, is used for drilling hole;

[0008] Fixed seat, the fixed seat is fixedly installed on the surface of first rotation shaft, a plurality of support arms are slidably installed in the inner chamber of fixed seat symmetrically, the second drill bit is rotatably installed on the side wall of support arm, is used for reaming hole;

[0009] Second rotation shaft, the second rotation shaft is rotatably installed in the inner chamber of first rotation shaft, the first gear is fixedly installed on the surface of second rotation shaft;

[0010] Lead screw, the lead screw is rotatably installed in the inner chamber of fixed seat symmetrically, the second gear is fixedly installed at one end of lead screw, the second gear is engaged with first gear, the other end of lead screw is sleeved in the inner chamber of support arm, the threaded block is fixedly installed on the side wall of support arm, the lead screw is threadedly connected with threaded block;

[0011] The support mechanism is installed on the first rotating shaft side wall and used for supporting the hole;

[0012] The sampling mechanism is installed in the first drill bit inner cavity and used for sampling.

[0013] In a preferred scheme, the first rotating shaft surface is fixedly installed with a third gear, the lifting platform surface is fixedly installed with a first motor, the first motor output end is fixedly installed with a fourth gear, the fourth gear is engaged with the third gear, and the first rotating shaft is driven to rotate.

[0014] In a preferred scheme, the first rotating shaft top is fixedly installed with a mounting box, the mounting box inner cavity is fixedly installed with a second motor, the second motor output end is fixedly connected with the second rotating shaft, the mounting box inner cavity is installed with a storage battery, the storage battery is electrically connected with the second motor, the support arm side wall is fixedly installed with a sliding block, and the sliding block is slidingly connected with the fixed seat.

[0015] In a preferred scheme, the support mechanism comprises rotating rings, supporting plates and air cylinders, the rotating rings are symmetrically and rotatably installed on the first rotating shaft surface, the supporting plates are slidingly installed on the rotating ring side walls, the first limiting rods are fixedly installed between the rotating rings and the lifting platform, and the air cylinders are fixedly installed on the lifting platform surface and used for driving the supporting plates.

[0016] In a preferred scheme, the rotating ring inner cavity is symmetrically and openingly provided with a plurality of air cavities, the first pistons are slidingly installed in the air cavity inner cavities, the first connecting rods are fixedly installed between the first pistons and the supporting plates, and the air passages are communicated between the air cavities.

[0017] In a preferred scheme, the air cylinder side wall is communicated with the first one-way valve and the second one-way valve, the second piston is slidingly installed in the air cylinder inner cavity, the second connecting rod is fixedly installed on the second piston surface, the second limiting rod is fixedly installed on the lifting platform surface, and the second limiting rod is slidingly connected with the second connecting rod.

[0018] In a preferred scheme, the second connecting rod other end is fixedly installed with a driving frame, the first rotating shaft surface is fixedly installed with a cam, the cam surface is openingly provided with a sliding groove, and the driving frame is slidingly sleeved in the sliding groove inner cavity.

[0019] In a preferred scheme, the sampling mechanism comprises helical blades, a sampling box and limiting blocks, the helical blades are fixedly installed at one end of the second rotating shaft, the sampling box is slidingly sleeved in the first drill bit inner cavity, and the limiting blocks are symmetrically and slidingly installed on the sampling box side walls and used for fixing the sampling box.

[0020] In a preferred scheme, the first drill bit inner cavity is provided with a limiting slot, the limiting block is matched with the limiting slot, the side wall of the limiting block is fixedly provided with a push rod, one end of the push rod is fixedly provided with a push block, the side wall of the push block is fixedly provided with a first spring, and the other end of the first spring is in abutment with the first drill bit.

[0021] In a preferred scheme, the surface of the support is fixedly provided with a telescopic air cylinder, the output end of the telescopic air cylinder is fixedly connected with a lifting platform, the side wall of the lifting platform is fixedly provided with a driving rod, the side wall of the support is slidably provided with a reinforcing plate, the bottom of the reinforcing plate is fixedly provided with a positioning rod, the inner cavity of the support is symmetrically fixedly provided with guide rods, the reinforcing plate is slidably connected with the guide rods, the surface of the guide rods is sleeved with second springs, one end of the second springs is in abutment with the support, and the other end of the second springs is in abutment with the reinforcing plate.

[0022] The geological exploration sampling device has the following beneficial effects:

[0023] 1. The reaming mechanism is arranged, the fourth gear is driven to rotate by the first motor, the third gear and the first rotating shaft are driven to rotate, the first drill bit is used for drilling, then the second rotating shaft is driven to rotate by the second motor, the first gear is driven to rotate, a plurality of second gears are driven to rotate, the lead screw is driven to rotate, the threaded block drives the support arm to move, the position of the second drill bit is adjusted, after the adjustment is completed, the plurality of second drill bits rotate with the first rotating shaft, synchronous reaming is performed, the device is suitable for reaming holes with different diameters, and use is convenient.

[0024] 2. The supporting mechanism is arranged, the first rotating shaft drives the cam to synchronously rotate, the sliding groove drives the driving frame and the second connecting rod to reciprocate, the second piston is driven to perform piston movement in the inner cavity of the cylinder, the first one-way valve and the second one-way valve are alternately communicated, air is supplied to the air passage and enters the air cavity, the first piston is driven to move outward, the first connecting rod drives the supporting plate to move to the hole wall, and the hole wall is supported to prevent the hole wall from collapsing.

[0025] 3. The sampling mechanism is arranged, the second motor drives the second rotating shaft to reverse, the lead screw is reversed, the support arm is driven to enter the fixed seat, meanwhile, the spiral blade is driven to rotate, the sample soil is rotated into the first drill bit and is sent into the sampling box for storage, after the first drill bit is lifted to the ground, the limiting block is driven to separate from the limiting slot by the push block, and then the sampling box can be taken out, and sampling is completed.

[0026] 4. The reinforcing plate is arranged, when the telescopic air cylinder drives the lifting platform to descend, with the deepening of the first drill bit, the reinforcing plate is driven to descend by the driving rod, and the positioning rod is inserted into the ground, the stability of the device is improved, and shaking during reaming is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to make the technical scheme of the embodiments of the present application clearer, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application and therefore should not be considered as limiting the scope. Other related drawings can also be obtained by those skilled in the art without creative effort on the basis of the drawings.

[0028] Figure 1 is a front perspective view provided by the embodiments of the present application;

[0029] Figure 2 is a side perspective view provided by the embodiments of the present application;

[0030] Figure 3 is an expansion mechanism perspective view provided by the embodiments of the present application;

[0031] Figure 4 is a Figure 3 enlarged view of A in the middle;

[0032] Figure 5 is a fixed seat sectional view provided by the embodiments of the present application;

[0033] Figure 6 is a rotating ring sectional view provided by the embodiments of the present application;

[0034] Figure 7 is a support mechanism perspective view provided by the embodiments of the present application;

[0035] Figure 8 is a Figure 7 enlarged view of B in the middle;

[0036] Figure 9 is a first drill bit sectional view provided by the embodiments of the present application;

[0037] Figure 10 is a sampling box sectional view provided by the embodiments of the present application;

[0038] As shown in FIG. 1, the base 1, the support 2, the lifting platform 3, the reaming mechanism 4, the first rotating shaft 401, the third gear 402, the first motor 403, the fourth gear 404, the first drill bit 405, the fixed seat 406, the supporting arm 407, the second drill bit 408, the mounting box 409, the second motor 410, the battery 411, the sliding block 412, the second rotating shaft 413, the first gear 414, the screw rod 415, the second gear 416, the threaded block 417, the supporting mechanism 5, the rotating ring 501, the supporting plate 502, the first limiting rod 503, the air cavity 504, the first piston 505, the first connecting rod 506, the air duct 507, the air cylinder 508, the first one-way valve 509, the second one-way valve 510, the second piston 511, the second connecting rod 512, the second limiting rod 513, the driving frame 514, the cam 515, the sliding groove 516, the sampling mechanism 6, the spiral blade 601, the sampling box 602, the limiting block 603, the limiting groove 604, the push rod 605, the push block 606, the first spring 607, the telescopic air cylinder 7, the driving rod 8, the reinforcing plate 9, the positioning rod 10, the guide rod 11, and the second spring 12. DETAILED DESCRIPTION

[0039] REFERENCE Figures 1-10 As shown in FIG. 1, the base 1, the support 2, the lifting platform 3, the reaming mechanism 4, the first rotating shaft 401, the third gear 402, the first motor 403, the fourth gear 404, the first drill bit 405, the fixed seat 406, the supporting arm 407, the second drill bit 408, the mounting box 409, the second motor 410, the battery 411, the sliding block 412, the second rotating shaft 413, the first gear 414, the screw rod 415, the second gear 416, the threaded block 417, the supporting mechanism 5, the rotating ring 501, the supporting plate 502, the first limiting rod 503, the air cavity 504, the first piston 505, the first connecting rod 506, the air duct 507, the air cylinder 508, the first one-way valve 509, the second one-way valve 510, the second piston 511, the second connecting rod 512, the second limiting rod 513, the driving frame 514, the cam 515, the sliding groove 516, the sampling mechanism 6, the spiral blade 601, the sampling box 602, the limiting block 603, the limiting groove 604, the push rod 605, the push block 606, the first spring 607, the telescopic air cylinder 7, the driving rod 8, the reinforcing plate 9, the positioning rod 10, the guide rod 11, and the second spring 12.

[0040] REFERENCE Figures 1-5As shown, in one preferred embodiment, the first rotating shaft 401 is fixedly installed with a first drill bit 405 at one end for drilling, and a fixed seat 406 is fixedly installed on the surface of the first rotating shaft 401 for installing a support arm 407. A plurality of support arms 407 are symmetrically and slidingly installed in the inner cavity of the fixed seat 406 for installing a second drill bit 408. A sliding block 412 is fixedly installed on the side wall of the support arm 407 and slidingly connected with the fixed seat 406. The second drill bit 408 is rotatably installed on the side wall of the support arm 407 for hole expansion. The first rotating shaft 401 is fixedly installed with a mounting box 409 at the top, and the mounting box 409 is fixedly installed with a second motor 410 in the inner cavity for driving a second rotating shaft 413. The output end of the second motor 410 is fixedly connected with the second rotating shaft 413. A storage battery 411 is installed in the inner cavity of the mounting box 409 and electrically connected with the second motor 410 for power supply.

[0041] Referring to Figures 1-5 As shown, in one preferred embodiment, the second rotating shaft 413 is rotatably installed in the inner cavity of the first rotating shaft 401 for driving the support arm 407. A first gear 414 is fixedly installed on the surface of the second rotating shaft 413. A lead screw 415 is rotatably installed in the inner cavity of the fixed seat 406. A second gear 416 is fixedly installed at one end of the lead screw 415 and engaged with the first gear 414. The lead screw 415 is sleeved at the other end in the inner cavity of the support arm 407. A threaded block 417 is fixedly installed on the side wall of the support arm 407 and threadedly connected with the lead screw 415. When the second motor 410 drives the second rotating shaft 413 to rotate, the first gear 414 is driven to rotate, thereby driving a plurality of second gears 416 to rotate, driving the lead screw 415 to rotate, thereby driving the threaded block 417 to move the support arm 407, achieving position adjustment of the second drill bit 408. It is suitable for hole expansion of holes with different diameters and is convenient to use.

[0042] In one preferred embodiment, when in use, the device is moved above the hole. The fourth gear 404 is driven to rotate by the first motor 403, thereby driving the third gear 402 and the first rotating shaft 401 to rotate. Drilling is performed by the first drill bit 405. Then, the second rotating shaft 413 is driven to rotate by the second motor 410, thereby driving the first gear 414 to rotate, driving a plurality of second gears 416 to rotate, driving the lead screw 415 to rotate, thereby driving the threaded block 417 to move the support arm 407, achieving position adjustment of the second drill bit 408. After adjustment, a plurality of second drill bits 408 rotate with the first rotating shaft 401 to perform synchronous hole expansion. It is suitable for hole expansion of holes with different diameters and is convenient to use.

[0043] Referring to Figures 1-8As shown, in one preferred embodiment, the supporting mechanism 5 is mounted on the side wall of the first rotating shaft 401, and is used for supporting the hole and preventing the hole wall from collapsing. The supporting mechanism 5 comprises rotating rings 501, supporting plates 502 and air cylinders 508. The rotating rings 501 are symmetrically and rotatably mounted on the surface of the first rotating shaft 401, and are used for mounting the supporting plates 502. The side walls of the two rotating rings 501 are slidably provided with the supporting plates 502, and are used for supporting the hole wall. The first limiting rods 503 are fixedly installed between the rotating rings 501 and the lifting platform 3. Under the action of the first limiting rods 503, the two rotating rings 501 are limited, so that the two rotating rings 501 do not rotate with the first rotating shaft 401. The air cylinders 508 are fixedly installed on the surface of the lifting platform 3, and are used for driving the supporting plates 502. A plurality of air cavities 504 are symmetrically formed in the inner cavities of the rotating rings 501. The first pistons 505 are slidably installed in the inner cavities of the air cavities 504. The first connecting rods 506 are fixedly installed between the first pistons 505 and the supporting plates 502, and are used for driving the supporting plates 502. The air passages 507 are communicated between the plurality of air cavities 504, and are used for supplying air to the air cavities 504.

[0044] With reference to Figures 1-8 As shown, in one preferred embodiment, the side walls of the air cylinders 508 are communicated with the first one-way valves 509 and the second one-way valves 510. The first one-way valves 509 are unidirectionally communicated to the inner cavities of the air cylinders 508, and are used for air inlet. The second one-way valves 510 are unidirectionally communicated to the outer walls of the air cylinders 508, and are used for air outlet. The air pipes are communicated between the second one-way valves 510 and the air passages 507. One end of the air pipe is provided with the pressure relief valve, and is used for pressure relief. The second pistons 511 are slidably installed in the inner cavities of the air cylinders 508. The second connecting rods 512 are fixedly installed on the surfaces of the second pistons 511, and are used for driving the second pistons 511. The second limiting rods 513 are fixedly installed on the surface of the lifting platform 3, and are slidably connected with the second connecting rods 512. The other ends of the second connecting rods 512 are fixedly installed with the driving frames 514, and are used for driving the second connecting rods 512. The cams 515 are fixedly installed on the surface of the first rotating shaft 401. The sliding grooves 516 are formed on the surfaces of the cams 515. The driving frames 514 are slidably sleeved in the inner cavities of the sliding grooves 516, and are used for driving the driving frames 514 to reciprocate.

[0045] In one preferred embodiment, in use, the first rotating shaft 401 rotates to drive the cam 515 to rotate synchronously, so as to drive the driving frame 514 and the second connecting rod 512 to reciprocate through the sliding groove 516, drive the second piston 511 to do piston movement in the inner cavity of the air cylinder 508, make the first one-way valve 509 and the second one-way valve 510 alternately communicate, supply air to the air passage 507, and enter the air cavity 504, drive the first piston 505 to move outward, and drive the supporting plate 502 to move to the hole wall through the first connecting rod 506, support the hole wall, and prevent the hole wall from collapsing.

[0046] With reference to Figures 1-10As shown, in a preferred embodiment, the sampling mechanism 6 is installed in the inner cavity of the first drill bit 405 for sampling, which comprises a spiral blade 601, a sampling box 602 and a limiting block 603, the spiral blade 601 is fixedly installed at one end of the second rotating shaft 413 for conveying the sample soil into the inner cavity of the first drill bit 405, the sampling box 602 is slidingly sleeved in the inner cavity of the first drill bit 405 for storing the sample soil, and the limiting block 603 is symmetrically slidingly installed on the side wall of the sampling box 602 for fixing the sampling box 602. The inner cavity of the first drill bit 405 is provided with a limiting groove 604, the limiting block 603 is matched with the limiting groove 604, the side wall of the limiting block 603 is fixedly installed with a push rod 605, one end of the push rod 605 is fixedly installed with a push block 606, the side wall of the push block 606 is fixedly installed with a first spring 607 for driving the limiting block 603, and the other end of the first spring 607 is abutted with the first drill bit 405. Under the action of the first spring 607, the limiting block 603 moves to the outer wall of the sampling box 602 and is inserted into the limiting groove 604 to position the sampling box 602.

[0047] In a preferred embodiment, in use, after reaming is completed, the second motor 410 drives the second rotating shaft 413 to reverse, drives the screw rod 415 to reverse, drives the supporting arm 407 to enter the fixed seat 406, at the same time, drives the spiral blade 601 to rotate, rotates the sample soil into the first drill bit 405, and conveys the sample soil into the sampling box 602 for storage. After the first drill bit 405 is lifted to the ground, the limiting block 603 is driven out of the limiting groove 604 by pulling the push block 606, so that the sampling box 602 can be taken out, and the sampling is completed.

[0048] Referring to Figures 1-2 As shown, in a preferred embodiment, the surface of the support 2 is fixedly installed with a telescopic air cylinder 7, the output end of the telescopic air cylinder 7 is fixedly connected with the lifting platform 3 for driving the lifting platform 3, the side wall of the lifting platform 3 is fixedly installed with a driving rod 8 for driving the reinforcing plate 9, the side wall of the support 2 is slidingly installed with the reinforcing plate 9, the bottom of the reinforcing plate 9 is fixedly installed with a positioning rod 10 for increasing the stability of the device, the inner cavity of the support 2 is symmetrically fixedly installed with a guide rod 11, the reinforcing plate 9 is slidingly connected with the guide rod 11, the surface of the guide rod 11 is sleeved with a second spring 12, one end of the second spring 12 is abutted with the support 2, and the other end of the second spring 12 is abutted with the reinforcing plate 9.

[0049] In a preferred embodiment, when the telescopic air cylinder 7 drives the lifting platform 3 to descend, with the deepening of the first drill bit 405, the reinforcing plate 9 is driven to descend by the driving rod 8, and the positioning rod 10 is inserted into the ground to increase the stability of the device and prevent shaking during reaming.

[0050] Specifically, the working process or working principle of the geological exploration sampling device is as follows: when in use, the device is moved above the hole, the lifting platform 3 is driven to descend by the telescopic cylinder 7, as the first drill bit 405 penetrates deeper, the reinforcing plate 9 is driven to descend by the driving rod 8, and the positioning rod 10 is inserted into the ground, thereby increasing the stability of the device and preventing shaking during hole expansion.

[0051] The fourth gear 404 is driven to rotate by the first motor 403, thereby driving the third gear 402 and the first rotating shaft 401 to rotate, and the first drill bit 405 is used for drilling, then the second rotating shaft 413 is driven to rotate by the second motor 410, thereby driving the first gear 414 to rotate, and the plurality of second gears 416 are driven to rotate, thereby driving the lead screw 415 to rotate, and the threaded block 417 drives the support arm 407 to move, so as to adjust the position of the second drill bit 408, after the adjustment is completed, the plurality of second drill bits 408 rotate with the first rotating shaft 401, and synchronous hole expansion is performed, which is suitable for hole expansion of holes with different diameters, and is convenient to use.

[0052] The first rotating shaft 401 drives the cam 515 to rotate synchronously, thereby driving the driving frame 514 and the second connecting rod 512 to reciprocate through the sliding groove 516, driving the second piston 511 to make piston movement in the inner cavity of the cylinder 508, so as to alternately guide the first one-way valve 509 and the second one-way valve 510 to be communicated, supply air to the air passage 507, and enter the air cavity 504, thereby driving the first piston 505 to move outward, and driving the support plate 502 to move towards the hole wall through the first connecting rod 506, so as to support the hole wall and prevent the hole wall from collapsing.

[0053] After the hole expansion is completed, the second motor 410 drives the second rotating shaft 413 to reverse, thereby driving the lead screw 415 to reverse, and driving the support arm 407 to be retracted into the fixed seat 406, at the same time, the helical blade 601 is driven to rotate, thereby rotating the sample soil into the first drill bit 405 and sending the sample soil into the sampling box 602 for storage, after the first drill bit 405 is lifted to the ground, the limiting block 603 is driven to be separated from the limiting groove 604 by actuating the push block 606, and the sampling box 602 can be taken out, and the sampling is completed.

[0054] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0055] It should be noted that the first motor 403, the second motor 410 and the storage battery 411 are devices or equipment existing in the prior art, or devices or equipment that can be realized in the prior art, and the power supply, specific composition and principle thereof are clear to those skilled in the art, and therefore will not be described in detail.

Claims

1. A geological exploration sampling device, characterized in that, The system includes a base (1), a hole-expanding mechanism (4), a support mechanism (5), and a sampling mechanism (6). A bracket (2) is symmetrically fixedly mounted on the surface of the base (1). A lifting platform (3) is slidably mounted inside the bracket (2). The hole-expanding mechanism (4) includes... The first rotating shaft (401) is rotatably mounted on the surface of the lifting platform (3). A first drill bit (405) is fixedly mounted on one end of the first rotating shaft (401) for drilling holes. A fixed seat (406) is fixedly installed on the surface of the first rotating shaft (401). Several support arms (407) are symmetrically slidably installed in the inner cavity of the fixed seat (406). A second drill bit (408) is rotatably installed on the side wall of the support arm (407) for enlarging the hole. The second rotating shaft (413) is rotatably installed in the inner cavity of the first rotating shaft (401), and the first gear (414) is fixedly installed on the surface of the second rotating shaft (413). A lead screw (415) is symmetrically and rotatably installed in the inner cavity of a fixed seat (406). A second gear (416) is fixedly installed at one end of the lead screw (415), and the second gear (416) meshes with a first gear (414). The other end of the lead screw (415) is sleeved in the inner cavity of a support arm (407). A threaded block (417) is fixedly installed on the side wall of the support arm (407), and the lead screw (415) is threadedly connected to the threaded block (417). The support mechanism (5) is installed on the side wall of the first rotating shaft (401) to support the hole; the sampling mechanism (6) is installed in the inner cavity of the first drill bit (405) for sampling; the sampling mechanism (6) includes a spiral blade (601), a sampling box (602) and a limiting block (603), the spiral blade (601) is fixedly installed at one end of the second rotating shaft (413), the sampling box (602) is slidably sleeved in the inner cavity of the first drill bit (405), and the limiting block (603) is symmetrically slidably installed in the sampling box. The side wall of the box (602) is used to fix the sampling box (602); the inner cavity of the first drill bit (405) is provided with a limiting groove (604), the limiting block (603) is adapted to the limiting groove (604), the side wall of the limiting block (603) is fixedly installed with a push rod (605), one end of the push rod (605) is fixedly installed with a push block (606), the side wall of the push block (606) is fixedly installed with a first spring (607), and the other end of the first spring (607) abuts against the first drill bit (405).

2. The geological exploration sampling device according to claim 1, characterized in that, A third gear (402) is fixedly mounted on the surface of the first rotating shaft 401, and a first motor (403) is fixedly mounted on the surface of the lifting platform (3). A fourth gear (404) is fixedly mounted on the output end of the first motor (403). The fourth gear (404) meshes with the third gear (402) to drive the first rotating shaft (401) to rotate.

3. The geological exploration sampling device according to claim 1, characterized in that, A mounting box (409) is fixedly installed on the top of the first rotating shaft (401). A second motor (410) is fixedly installed inside the mounting box (409). The output end of the second motor (410) is fixedly connected to the second rotating shaft (413). A storage battery (411) is installed inside the mounting box (409). The storage battery (411) is electrically connected to the second motor (410). A slider (412) is fixedly installed on the side wall of the support arm (407). The slider (412) is slidably connected to the fixed seat (406).

4. A geological exploration sampling device according to claim 1, characterized in that, The support mechanism (5) includes a rotating ring (501), a support plate (502) and a cylinder (508). The rotating ring (501) is symmetrically rotated and mounted on the surface of the first rotating shaft (401). The support plate (502) is slidably mounted on the side walls of the two rotating rings (501). A first limiting rod (503) is fixedly installed between the rotating ring (501) and the lifting platform (3). The cylinder (508) is fixedly mounted on the surface of the lifting platform (3) and is used to drive the support plate (502).

5. A geological exploration sampling device according to claim 4, characterized in that, The rotating ring (501) has several air chambers (504) symmetrically arranged inside. A first piston (505) is slidably installed inside the air chamber (504). A first connecting rod (506) is fixedly installed between the first piston (505) and the support plate (502). Air passages (507) are connected between the several air chambers (504). A first one-way valve (509) and a second one-way valve (510) are connected to the side wall of the cylinder (508). A second piston (511) is slidably installed inside the cylinder (508). A second connecting rod (512) is fixedly installed on the surface of the second piston (511). A second limiting rod (513) is fixedly installed on the surface of the lifting platform (3). The second limiting rod (513) is slidably connected to the second connecting rod (512).

6. A geological exploration sampling device according to claim 5, characterized in that, The other end of the second connecting rod (512) is fixedly installed with a drive frame (514), and the surface of the first rotating shaft (401) is fixedly installed with a cam (515). The surface of the cam (515) is provided with a groove (516), and the drive frame (514) is slidably sleeved in the inner cavity of the groove (516).

7. A geological exploration sampling device according to any one of claims 1 to 5, characterized in that, A telescopic cylinder (7) is fixedly installed on the surface of the bracket (2). The output end of the telescopic cylinder (7) is fixedly connected to the lifting platform (3). A drive rod (8) is fixedly installed on the side wall of the lifting platform (3). A reinforcing plate (9) is slidably installed on the side wall of the bracket (2). A positioning rod (10) is fixedly installed at the bottom of the reinforcing plate (9). Guide rods (11) are symmetrically fixedly installed in the inner cavity of the bracket (2). The reinforcing plate (9) is slidably connected to the guide rod (11). A second spring (12) is sleeved on the surface of the guide rod (11). One end of the second spring (12) abuts against the bracket (2), and the other end of the second spring (12) abuts against the reinforcing plate (9).