A sampling device for coal geological exploration

Abstract

The application provides a sampling device for coal geological exploration, and relates to the field of geological exploration sampling. The device comprises a supporting assembly, a placing assembly and a lifting assembly. The supporting assembly comprises a supporting frame body for providing support for other components. The placing assembly comprises a placing cylinder for separating soil samples. The lifting assembly is used to drive the placing assembly to be placed into soil. The sampling assembly comprises a sampling pipe, the upper part of which is fixedly connected with a sampling spiral blade matched with the placing cylinder, and the lower end of the sampling pipe is fixedly connected with a soil shovel claw. The lifting assembly, the sampling assembly and the driving assembly are arranged. The driving assembly is used to drive the sampling assembly to rotate. The soil can be cut, crushed and conveyed, so that the insertion end of the placing pipe is prevented from being damaged, the soil is easily inserted, and the operation is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geological exploration sampling, in particular to a sampling device for coal geological exploration. BACKGROUND

[0002] Before coal collection, a sampling device is usually used to perform geological exploration sampling in advance on the collection position. During coal geological exploration sampling, the sample contains soil, weeds, gravel, coal and other components. By analyzing the components of the sample, it can be determined whether coal collection can be performed in the geology.

[0003] In related technologies, such as a geological sampling device for coal geological exploration with the announcement number CN218994781U, the sampling device inserts the sampling tube into the ground by using the pressure application method.

[0004] For example, a coal geological exploration sampling device with the announcement number CN218444545U uses a screw rod to take out the soil sample.

[0005] However, the traditional pressure application insertion sampling method is prone to encountering rocks, which causes the insertion end of the sampling tube to be damaged, making it difficult to insert and inconvenient to operate. SUMMARY

[0006] To overcome the deficiencies of the prior art, the present application provides a sampling device for coal geological exploration, which solves the problem of the traditional pressure application insertion sampling method, which is prone to encountering rocks, causing the insertion end of the sampling tube to be damaged, making it difficult to insert and inconvenient to operate.

[0007] To achieve the above purpose, the present application is implemented by the following technical solution: a sampling device for coal geological exploration, comprising:

[0008] A support assembly comprising a support frame body for providing support to other components;

[0009] A placement assembly comprising a placement cylinder for separating soil samples;

[0010] A lifting assembly for driving the placement assembly to place into the soil;

[0011] The sampling assembly comprises a sampling pipe, the upper part of the sampling pipe is fixedly connected with a sampling spiral blade matched with the insertion cylinder, the lower end of the sampling pipe is fixedly connected with a soil claw, one of the soil claws is fixedly connected with the lower end of the sampling spiral blade, the lower part of the sampling pipe is provided with a sampling port at the gap between adjacent two soil claws, the inner bottom wall of the sampling pipe is coaxially fixedly connected with a separation cone, the conical surface of the separation cone is fixedly connected with a blocking arc-shaped blade, the upper part of the separation cone is provided with a separation neck, the separation neck is located above the sampling port and is fixedly connected with the sampling pipe, the separation neck is provided with a channel which is gradually contracted from the upper end to the middle part, the outer side of the soil claw is fixedly connected with a rotation ring, the upper part of the rotation ring is provided with a matching groove, the lower part of the rotation ring is fixedly connected with a cutting knife, the connection part of the plurality of soil claws is fixedly connected with a dispersion cone, the dispersion cone is coaxially arranged with the sampling pipe, the upper and lower surfaces of the soil claw are fixedly connected with a crushing tip, and the inclined surface of the soil claw is provided with a leakage hole.

[0012] The driving assembly is used for driving the sampling assembly to rotate and pushing out the soil sample.

[0013] The extraction assembly is used for extracting the coal particle sample. Through the lifting assembly, the sampling assembly and the driving assembly, the soil can be cut, crushed and conveyed by driving the sampling assembly to rotate by the driving assembly, so that the insertion end of the insertion pipe is prevented from being damaged, the insertion into the soil is facilitated, and the operation is convenient.

[0014] Preferably, the supporting assembly further comprises a supporting light pole symmetrically fixedly installed on the inner side of the supporting frame, the lower part of the supporting frame is symmetrically fixedly installed with universal wheels, and the lower part of the supporting frame is symmetrically fixedly installed with guide wheels. The universal wheels are used for overall movement and are used for ensuring the stability of the overall sampling; the guide wheels are used for guiding the insertion of the insertion cylinder into the soil and ensuring the sampling stability of the insertion cylinder.

[0015] Preferably, the insertion assembly further comprises an arc-shaped track fixedly installed at the lower end of the insertion cylinder, the upper part of the insertion cylinder is fixedly connected with two blocking rings, a gap for clamping is arranged between the two blocking rings, the upper end of the insertion cylinder is fixedly connected with a protruding ring, and the arc-shaped track and the protruding ring are coaxially arranged with the insertion cylinder. The arc-shaped track is slidably matched with the matching groove and is used for guiding the rotation of the rotation ring and ensuring the smooth rotation of the rotation ring.

[0016] Preferably, the lifting assembly comprises a telescopic device fixedly installed on the supporting frame, the output end of the telescopic device is fixedly connected with a connecting frame, the connecting frame is fixedly connected with a lifting plate, the middle part of the lifting plate is provided with a through hole for accommodating the insertion assembly, and the lower part of the lifting plate is symmetrically provided with clamping pieces for clamping the insertion cylinder.

[0017] Preferably, the clamping piece comprises an electric push rod fixedly installed at the lower part of the lifting plate, the output end of the electric push rod is fixedly connected with a clamping jaw, the clamping jaw is fixedly connected with an auxiliary rod, and the auxiliary rod is in sliding fit with the lifting plate.

[0018] Preferably, the lower part of the cutting knife is provided with a cutting sharp edge, and the upper part of the cutting knife is symmetrically provided with vertical cutting edges.

[0019] Preferably, the driving assembly comprises an auxiliary frame fixedly installed on the lifting assembly, a base, and a containing shell, the base is fixedly installed with a driving motor, the output end of the driving motor is fixedly connected with a driving gear, the inner side of the auxiliary frame is provided with a driven gear, the driven gear is fixedly installed on the sampling pipe, a chain is arranged between the driving gear and the driven gear, the outer side of the chain is fixedly connected with a driving piece, the driving piece is matched with the containing shell, and the outer side of the base is fixedly connected with a discharging shell.

[0020] Preferably, the extraction assembly comprises a negative pressure seat fixedly installed on the driving assembly, the negative pressure seat is fixedly installed with a negative pressure device, the extraction end of the negative pressure device is fixedly connected with an extraction pipe, and the extraction pipe is connected with the sampling pipe through a rotary joint.

[0021] The application provides a sampling equipment for coal geological exploration.

[0022] The lifting assembly, the sampling assembly and the driving assembly are arranged, the sampling assembly is driven to rotate by the driving assembly, the soil can be cut, crushed and conveyed, the insertion end of the insertion pipe is prevented from being damaged, the insertion pipe is conveniently inserted into the soil, and the operation is convenient.

[0023] The extraction assembly is arranged, the small-particle sample can be extracted by the extraction assembly, and the coal geological exploration can be conveniently performed. DETAILED DESCRIPTION

[0024] Figure 1 It is a whole perspective view of the application;

[0025] Figure 2 It is a whole perspective view of the application from another angle;

[0026] Figure 3 It is a whole partial sectional view of the application;

[0027] Figure 4 It is a whole top view of the application;

[0028] Figure 5 It is a perspective view of the supporting assembly of the application;

[0029] Figure 6Figure 1 is a perspective view of the lifting assembly of the present application;

[0030] Figure 7 Figure 1 is a perspective view of the lifting assembly of the present application;

[0031] Figure 8 Figure 1 is a perspective view of the lifting assembly of the present application;

[0032] Figure 9 Figure 1 is a perspective view of the lifting assembly of the present application;

[0033] Figure 10 Figure 1 is a perspective view of the lifting assembly of the present application;

[0034] Figure 11 Figure 1 is a perspective view of the lifting assembly of the present application;

[0035] Figure 12 Figure 1 is a perspective view of the lifting assembly of the present application;

[0036] Figure 13 Figure 1 is a perspective view of the lifting assembly of the present application;

[0037] Figure 14 Figure 1 is a perspective view of the lifting assembly of the present application;

[0038] Figure 15 Figure 1 is a perspective view of the lifting assembly of the present application;

[0039] Figure 16 Figure 1 is a perspective view of the lifting assembly of the present application;

[0040] Figure 17 Figure 1 is a perspective view of the lifting assembly of the present application;

[0041] Figure 18 Figure 1 is a perspective view of the lifting assembly of the present application;

[0042] Wherein, 1, support assembly; 2, lifting assembly; 3, placing assembly; 4, sampling assembly; 5, driving assembly; 6, extraction assembly; 101, support frame body; 102, support light pole; 103, universal wheel; 104, guide wheel; 201, telescopic device; 202, connecting frame; 203, lifting plate; 204, clamping piece; 2041, clamping claw; 2042, auxiliary rod; 2043, electric push rod; 301, placing cylinder; 302, arc track; 303, blocking ring; 304, protruding ring; 401, sampling pipe; 402, sampling spiral blade; 403, self-rotating ring; 404, matching groove; 405, cutting knife; 406, sampling port; 407, earth claw; 4071, leakage hole; 408, breaking tip; 409, dispersion cone; 4051, cutting sharp edge; 4052, vertical cutting edge; 501, containing shell; 502, base; 503, discharge shell; 504, driving motor; 505, driving gear; 506, driven gear; 507, auxiliary frame; 508, chain; 509, driving piece; 601, negative pressure seat; 602, negative pressure device; 603, extraction pipe; 604, rotary joint; 7, separation cone; 701, blocking arc leaf; 8, separation neck. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0044] As Figures 1-18 shown, the present application provides a sampling device for coal geological exploration, comprising:

[0045] The support assembly 1 comprises a support frame body 101 for providing support for other components;

[0046] Referring to Figure 5 , the upper and lower parts of the support frame body 101 are provided with openings for providing working space for the placing assembly 3 and the sampling assembly 4, and the left and right parts of the support frame body 101 are provided with moving channels for providing space for the movement of the lifting assembly 2.

[0047] The support assembly 1 further comprises support light poles 102 symmetrically fixedly installed on the inner side of the support frame body 101, the lower part of the support frame body 101 is symmetrically fixedly installed with universal wheels 103, and the lower part of the support frame body 101 is symmetrically fixedly installed with guide wheels 104;

[0048] Referring to Figure 1 , Figure 5, support frame body 101 can provide support and mounting position for other components, universal wheel 103 is used for overall movement, universal wheel 103 can be selected from the type with brake, for ensuring the stability of the whole when sampling, guide wheel 104 is used for guiding the insertion of the cylinder body 301 into the soil, and ensuring the stability of the sampling of the insertion cylinder body 301.

[0049] The insertion assembly 3 comprises an insertion cylinder body 301 for separating soil samples.

[0050] Referring to Figure 2 The insertion cylinder body 301 can be integrally arranged or can be detachably arranged, such as being integrally arranged by being threadedly connected with multiple parts, and can be selected according to the actual situation of sampling.

[0051] The insertion assembly 3 further comprises an arc-shaped track 302 fixedly installed at the lower end of the insertion cylinder body 301, the upper portion of the insertion cylinder body 301 is fixedly connected with two blocking rings 303, a gap for clamping use is arranged between the two blocking rings 303, and the upper end of the insertion cylinder body 301 is fixedly connected with a protruding ring 304; the arc-shaped track 302 and the protruding ring 304 are coaxially arranged with the insertion cylinder body 301.

[0052] Referring to Figure 8 The arc-shaped track 302 is slidably connected with the matching groove 404, is used for guiding the self-rotation of the self-rotation ring 403, and ensures the smooth self-rotation of the self-rotation ring 403; the protruding ring 304 is used for guiding the soil sample, and is combined with the containing shell 501 to provide a bottom-sealed containing environment for the soil, so that the soil sample can be smoothly taken out from the insertion cylinder body 301.

[0053] The lifting assembly 2 is used for driving the insertion assembly 3 to be inserted into the soil.

[0054] The lifting assembly 2 comprises a telescopic device 201 fixedly installed on the support frame body 101, the output end of the telescopic device 201 is fixedly connected with a connecting frame 202, the connecting frame 202 is fixedly connected with a lifting plate 203, the middle portion of the lifting plate 203 is provided with a through hole for accommodating the insertion assembly 3, and the lower portion of the lifting plate 203 is symmetrically provided with clamping pieces 204 for clamping the insertion cylinder body 301.

[0055] Referring to Figure 5 , Figure 6When the lifting operation is performed, the telescopic device 201 works to drive the connecting frame 202, the lifting plate 203 and the clamping piece 204 to move, thereby providing the insertion force for the placement assembly 3, and the lifting plate 203 can be guided by the support light pole 102 to ensure the stability of the movement of the lifting plate 203, wherein the telescopic device 201 can be a hydraulic cylinder or an electric push rod, and is connected with an external power source, a hydraulic source and a controller during the operation.

[0056] The clamping piece 204 comprises an electric push rod 2043 fixedly installed at the lower part of the lifting plate 203, the output end of the electric push rod 2043 is fixedly connected with a clamping jaw 2041, and the clamping jaw 2041 is fixedly connected with an auxiliary rod 2042 which is in sliding fit with the lifting plate 203.

[0057] Reference Figure 7 When the clamping operation is performed, the electric push rod 2043 works under the action of the external power source and the controller to drive the clamping jaw 2041 to move, the two clamping jaws 2041 are arranged in the gap between the two blocking rings 303, the placement cylinder 301 can be clamped, the upper blocking ring 303 can be limited by the through hole in the middle of the lifting plate 203, thereby ensuring the stability of the placement cylinder 301, and the auxiliary rod 2042 is used to ensure the stability of the movement of the clamping jaw 2041; the lower part of the clamping jaw 2041 can be provided with an arc-shaped protrusion which is used to contact the blocking ring 303 and ensure the stability of the placement cylinder 301.

[0058] The sampling assembly 4 comprises a sampling pipe 401, the upper part of the sampling pipe 401 is fixedly connected with a sampling helical blade 402 which is matched with the placement cylinder 301, the lower end circumference of the sampling pipe 401 is fixedly connected with a soil shoveling claw 407, one of the soil shoveling claws 407 is fixedly integrated with the lower end of the sampling helical blade 402, the lower part of the sampling pipe 401 is provided with a sampling port 406 at the gap between adjacent two soil shoveling claws 407, the inner bottom wall of the sampling pipe 401 is coaxially fixedly connected with a separation cone 7, the conical surface of the separation cone 7 is fixedly connected with a blocking arc-shaped blade 701, the upper part of the separation cone 7 is provided with a separation neck 8 which is located above the sampling port 406 and is fixedly connected with the sampling pipe 401, the separation neck 8 is provided with a passage which is gradually contracted from the upper end to the middle part, the outer side of the soil shoveling claw 407 is fixedly connected with a self-rotation ring 403, the upper part of the self-rotation ring 403 is provided with a matching groove 404, the lower part of the self-rotation ring 403 is fixedly connected with a cutting knife 405, the connecting part of the plurality of soil shoveling claws 407 is fixedly connected with a dispersion cone 409 which is coaxially arranged with the sampling pipe 401, the upper and lower surfaces of the soil shoveling claw 407 are fixedly connected with a crushing tip 408, and the inclined surface of the soil shoveling claw 407 is provided with a leakage hole 4071.

[0059] ReferenceFigure 9 、 Figure 10 、 Figure 13 、 Figure 17 、 Figure 18 When sampling, the rotation of the sampling tube 401 can drive the sampling helical blade 402 to rotate, and the sampling helical blade 402 can push the soil upwards, and can simultaneously drive the soil shovel 407, the rotation ring 403 and the dispersion cone 409 to rotate, the rotation ring 403 can drive the cutting knife 405 to move, and the cutting knife 405 can cut the soil, rocks and weeds, which is convenient for inserting into the soil in the barrel 301.

[0060] The soil shovel 407 can shovel the soil in blocks, cut the soil and coal in the vertical direction, and drive the breaking tip 408 to move. After passing through the leakage hole 4071, the mixture of the soil and coal, such as coal particles, will first fall to the lower part of the soil shovel 407 under the action of gravity, and the large blocks of soil continue to move along the soil shovel 407, which can preliminarily separate and screen the coal particles. The particles will first be sucked into the sampling port 406 by suction; the blocking arc-shaped leaf 701 can guide the movement of the particles and prevent the soil outside the blocking arc-shaped leaf 701 from entering the sampling port 406, thereby providing a movement space for the suction of the coal particles; the breaking tip 408 can break the soil in blocks, and the dispersion cone 409 can contact the soil to position and disperse the soil, which is convenient for the soil to be pushed upwards by the sampling helical blade 402, thereby ensuring the smooth sampling process.

[0061] When the sampling port 406 is at the depth containing the coal sample, because the density of coal is usually between 1.2 and 1.6 g / cm3, and the soil has water absorption, the density of coal is lower than that of deep soil, and the coal particles are lighter than the soil. At this time, the coal particles in the form of particles will enter the separation neck 8 under the suction of negative pressure, and then be sucked out after being separated twice by the separation neck 8, while the soil or rock particles with high water content and high density will be thrown out under the action of gravity and centrifugal force, and then fall into the sampling helical blade 402. The coal particles are faster than the soil samples to be taken out from the deep soil, which can quickly obtain the information of whether the geology contains coal resources, without the need to completely take out the deep sample to understand whether the geology contains coal, thereby greatly increasing the efficiency of coal sampling.

[0062] The lower part of the cutting knife 405 is provided with a cutting tip 4051, and the upper part of the cutting knife 405 is symmetrically provided with a vertical cutting edge 4052.

[0063] Reference Figure 11 、 Figure 12 The cutting tip 4051 is used for inserting into the soil, and the vertical cutting edge 4052 is used for cutting the soil.

[0064] The driving assembly 5 is used for driving the sampling assembly 4 to rotate and pushing out the soil sample;

[0065] The driving assembly 5 comprises an auxiliary frame 507, a base 502, and a containing shell 501, the base 502 is fixedly installed on the lifting assembly 2, the driving motor 504 is fixedly installed on the base 502, the output end of the driving motor 504 is fixedly connected with the driving gear 505, the inner side of the auxiliary frame 507 is provided with the driven gear 506, the driven gear 506 is fixedly installed on the sampling pipe 401, the chain 508 is arranged between the driving gear 505 and the driven gear 506, the outer side of the chain 508 is fixedly connected with the driving piece 509, the driving piece 509 is matched with the containing shell 501, and the outer side of the base 502 is fixedly connected with the discharging shell 503.

[0066] Reference Figure 13 , Figure 14 When the driving operation is performed, the driving motor 504 works under the action of the external power supply and the controller, drives the driving gear 505 to rotate, drives the driven gear 506 to rotate through the chain 508, drives the sampling pipe 401 to rotate, provides power for the subsequent sampling operation, synchronously drives the driving piece 509 to move through the moving chain 508, and the driving piece 509 can push the soil sample to the discharging shell 503 and then discharge the soil sample from the discharging shell 503.

[0067] The extraction assembly 6 is used for extracting the coal particle sample;

[0068] The extraction assembly 6 comprises a negative pressure seat 601 fixedly installed on the driving assembly 5, the negative pressure device 602 is fixedly installed on the negative pressure seat 601, the extraction end of the negative pressure device 602 is fixedly connected with the extraction pipe 603, and the extraction pipe 603 is connected with the sampling pipe 401 through the rotary joint 604.

[0069] Reference Figure 15 When the extraction operation is performed, the negative pressure device 602 works under the action of the external power supply and the controller, extracts the particle material in the sampling port 406 at the lower portion of the sampling pipe 401 through the extraction pipe 603, the particle material can be stone particles, coal particles, and soil particles, and then is discharged from the discharge end of the negative pressure device 602, so that the particle material does not hinder the normal soil sampling movement, and the exploration and sampling operation of the coal geology is suitable, wherein the negative pressure device 602 can be an existing dust collector, and the rotary joint 604 ensures the normal flow of the gas under the condition of meeting the rotation.

[0070] Working principle: the support frame 101 can be moved to the position where the sample is needed through the universal wheel 103, and the insertion assembly 3 is placed in the through hole in the middle of the lifting plate 203. The electric push rod 2043 works under the action of the external power supply and the controller, drives the clamping jaw 2041 to move, and uses the clamping jaw 2041 on both sides to be placed in the gap between the two blocking rings 303, so that the insertion cylinder 301 can be clamped. The upper blocking ring 303 can be limited by the through hole in the middle of the lifting plate 203, so as to ensure the stability of the insertion cylinder 301.

[0071] The driving motor 504 works under the action of the external power supply and the controller, drives the driving gear 505 to rotate, and the driving gear 505 drives the driven gear 506 to rotate through the chain 508. The driven gear 506 drives the sampling pipe 401 to rotate, providing power for the subsequent sampling action.

[0072] At the same time, the telescopic device 201 works, drives the connecting frame 202, the lifting plate 203 and the clamping part 204 to move, so as to provide the insertion assembly 3 with the force to insert into the soil. The lifting plate 203 can ensure the stability of the movement of the lifting plate 203 under the guidance of the support rod 102.

[0073] The rotation of the sampling pipe 401 can drive the sampling spiral blade 402 to rotate, which can push the soil upwards from bottom to top, and can synchronously drive the soil shovel 407, the rotation ring 403 and the dispersion cone 409 to rotate. The rotation ring 403 drives the cutting knife 405 to move, which can cut the soil, facilitating the insertion of the insertion cylinder 301 into the soil. The soil shovel 407 can shovel the soil in bulk, cut the soil and coal from the vertical direction, and drive the breaking tip 408 to move. The breaking tip 408 can break the soil in bulk, break the soil and coal blocks from the horizontal direction, and the dispersion cone 409 can contact the soil to disperse the soil, facilitating the soil to be pushed upwards by the sampling spiral blade 402, and ensuring the smoothness of the sampling process.

[0074] When the sampling port 406 is at the depth containing the coal sample, the mixture of broken soil and coal after passing through the leakage hole 4071, small particle materials such as coal particles will first fall to the lower part of the soil shovel 407 under the action of gravity, and the bulk soil will continue to move along the soil shovel 407, which can preliminarily separate and screen the coal particles. The particles will be first sucked into the sampling port 406, the blocking arc-shaped leaf 701 can guide the movement of the particles and prevent the soil outside the blocking arc-shaped leaf 701 from entering the sampling port 406, providing a movement space for the suction of the coal particles; and the soil shovel 407 has four soil shovels 407 which are not fixed with the sampling spiral blade 402, which can break and separate the bulk soil and provide sufficient space and time for the suction of the coal particles.

[0075] The granular coal is sucked into the separation cone 7 under negative pressure, enters the separation neck 8, and is extracted after secondary separation of the separation neck 8. The soil or rock particles with a higher water content and a larger density are thrown out under the action of gravity and centrifugal force, and then are taken into the sampling spiral blade 402 by the blocky soil. The coal particles are taken out from the deep soil faster than the soil sample, and the information about whether the geology contains coal mineral resources can be obtained faster. It is not necessary to completely take out the deep sample to understand whether the geology contains coal, and the efficiency of coal sampling is greatly increased.

[0076] The cutting sharp blade 4051 is used for inserting into the soil, and the vertical cutting blade 4052 is used for cutting the soil, rock and weeds, ensuring smooth insertion of the insertion cylinder 301, avoiding damage to the insertion end of the insertion cylinder 301, and ensuring smooth sampling.

[0077] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sampling device for coal geological exploration, characterized by, Include: Supporting assembly (1), the supporting assembly (1) includes support frame body (101), for providing support for other components; Inserting assembly (3), the inserting assembly (3) includes inserting cylinder body (301), for separating soil samples; Lifting assembly (2), the lifting assembly (2) is used to drive the inserting assembly (3) to insert into the soil; Sampling assembly (4), the sampling assembly (4) includes a sampling tube (401), the upper part of the sampling tube (401) is fixedly connected with a sampling spiral blade (402) matched with the inserting cylinder body (301), the lower end of the sampling tube (401) is fixedly connected with a soil claw (407) in the circumference, one of the soil claw (407) is fixedly connected with the lower end of the sampling spiral blade (402), the lower part of the sampling tube (401) is provided with a sampling port (406) at the gap between adjacent two soil claws (407), the inner bottom wall of the sampling tube (401) is coaxially fixedly connected with a separation cone (7), the conical surface of the separation cone (7) is fixedly connected with a blocking arc-shaped blade (701), the outer side of the soil claw (407) is fixedly connected with a rotation ring (403), the upper part of the rotation ring (403) is provided with a matching groove (404), the lower part of the rotation ring (403) is fixedly connected with a cutting knife (405) in the circumference, the upper and lower surfaces of the soil claw (407) are fixedly connected with a crushing tip (408), the inclined surface of the soil claw (407) is provided with a leakage hole (4071); Drive assembly (5), the drive assembly (5) is used to drive the sampling assembly (4) to rotate and push out the soil sample; Extraction assembly (6), the extraction assembly (6) is used to extract coal particle samples.

2. The sampling device for coal geological exploration according to claim 1, characterized in that: The supporting assembly (1) further includes support light poles (102) fixedly installed symmetrically on the inner side of the support frame body (101), the lower part of the support frame body (101) is fixedly installed with universal wheels (103) symmetrically, the lower part of the support frame body (101) is fixedly installed with guide wheels (104) symmetrically.

3. The sampling device for coal geological exploration according to claim 1, characterized in that: The inserting assembly (3) further includes an arc-shaped track (302) fixedly installed at the lower end of the inserting cylinder body (301), the upper part of the inserting cylinder body (301) is fixedly connected with two blocking rings (303), a gap for clamping is provided between the two blocking rings (303), the upper end of the inserting cylinder body (301) is fixedly connected with a protruding ring (304), the arc-shaped track (302) and the protruding ring (304) are coaxially arranged with the inserting cylinder body (301).

4. The sampling device for coal geological exploration according to claim 1, characterized in that: The lifting assembly (2) includes a telescopic device (201) fixedly installed on the support frame body (101), the output end of the telescopic device (201) is fixedly connected with a connecting frame (202), the connecting frame (202) is fixedly connected with a lifting plate (203), the middle part of the lifting plate (203) is provided with a through hole for accommodating the inserting assembly (3), the lower part of the lifting plate (203) is symmetrically provided with clamping pieces (204) for clamping the inserting cylinder body (301).

5. The sampling device for coal geological exploration according to claim 4, characterized in that: The clamping piece (204) comprises an electric push rod (2043) fixedly installed at the lower part of the lifting plate (203), the output end of the electric push rod (2043) is fixedly connected with a clamping claw (2041), the clamping claw (2041) is fixedly connected with an auxiliary rod (2042), and the auxiliary rod (2042) is in sliding fit with the lifting plate (203).

6. The sampling device for coal geological exploration according to claim 1, characterized in that: The separation neck body (8) is located above the sampling port (406) and is fixedly connected with the sampling tube (401), the separation neck body (8) is internally provided with a channel gradually shrinking from the upper end and the lower end to the middle part, a plurality of connecting parts of the earth scooping claws (407) are fixedly connected with dispersion cones (409), the dispersion cones (409) are coaxially arranged with the sampling tube (401), the lower part of the cutting knife (405) is provided with a cutting sharp edge (4051), and the upper part of the cutting knife (405) is symmetrically provided with vertical cutting edges (4052).

7. The sampling device for coal geological exploration according to claim 1, characterized in that: The driving assembly (5) comprises an auxiliary frame (507), a base (502) and a containing shell (501) fixedly installed on the lifting assembly (2), the base (502) is fixedly installed with a driving motor (504), the output end of the driving motor (504) is fixedly connected with a driving gear (505), the inner side of the auxiliary frame (507) is provided with a driven gear (506), the driven gear (506) is fixedly installed on the sampling tube (401), the chain (508) is arranged between the driving gear (505) and the driven gear (506), the outer side of the chain (508) is fixedly connected with a driving piece (509), the driving piece (509) is matched with the containing shell (501), and the outer side of the base (502) is fixedly connected with a discharging shell (503).

8. The sampling device for coal geological exploration according to claim 1, characterized in that: The extraction assembly (6) comprises a negative pressure seat (601) fixedly installed on the driving assembly (5), the negative pressure seat (601) is fixedly installed with a negative pressure device (602), the extraction end of the negative pressure device (602) is fixedly connected with an extraction tube (603), and the extraction tube (603) is connected with the sampling tube (401) through a rotary joint (604).

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