A sampling device for geological survey in mining areas

Abstract

The present invention discloses a sampling device for geological survey in mining areas, which belongs to the field of sampling devices, and includes a main sampling motor arranged at the bottom of the probe device, wherein the inner wall of the output shaft of the main sampling motor is plugged with a central fixing component, and the outer side of the output end of the main sampling motor is connected to an outer ring shaft disk through an outer stabilizing component, and the inner wall of the outer ring shaft disk is connected to three planetary disks through tooth groove meshing, and the three planetary disks are arranged in a ring array with the central fixing component as the axis. The present invention is arranged by the coordination of the outer ring shaft disk and the planetary disk, and the outer ring shaft disk rotates under the drive of the main sampling motor, and can drive the internal planetary disk to revolve around the outer ring shaft disk and the planetary disk to rotate, so as to facilitate the cutting sampling crushing head to quickly and stably break the soil and rock formation, and avoid the cutting sampling crushing head from being stuck when a single rotation is made, because the planetary disk rotates under the drive of the outer ring shaft disk to provide a large torque, so that the cutting sampling crushing head can more easily break the hard rock formation.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a sampling device for geological survey in mining areas. Background Art

[0002] Hydrogeological survey is one of the main survey objects of geological survey in mining areas. In order to obtain information such as groundwater quality, physical, hydraulic and mechanical properties of rocks, and rock destruction and dissolution mechanisms, it is necessary to conduct laboratory identification analysis and testing of water, rock and soil samples. Therefore, a sampling device will be used to collect rock and soil samples in the observation hole. The existing sampling device directly breaks the soil and rock layer for sampling through a cutting end vertically set in the soil layer. The cutting end is easily damaged when drilling into a rock layer with greater hardness for sampling, resulting in a significant decrease in the efficiency of breaking the rock layer for sampling, and the efficiency and convenience of the sampling device cannot be effectively guaranteed. When the existing sampling device breaks the soil and rock layer for sampling, the cutting end cannot effectively guarantee the cutting stability of the cutting end when drilling into a rock layer with greater hardness or a broken zone for sampling. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the prior art that the cutting end is easily damaged when drilling in rock formations with greater hardness, the efficiency of breaking the rock formation is greatly reduced, and the drilling stability of the cutting end cannot be guaranteed, and a sampling device for geological survey in mining areas is proposed.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A sampling device for geological survey in mining areas, comprising a main sampling motor arranged at the bottom end of a probe device, a central fixing component is inserted into the inner wall of the output shaft of the main sampling motor, an outer ring shaft disk is connected to the outer side of the output end of the main sampling motor through an outer stabilizing component, the inner wall of the outer ring shaft disk is connected to three planetary disks through tooth groove meshing, the three planetary disks are arranged in an annular array with the central fixing component as the axis, a spherical meshing head is fixed to the bottom of the three planetary disks, a multi-petal meshing ring is inserted into the inner wall of the inclined groove provided on the outer side of the spherical meshing head, an impact hydraulic rod is fixed to the inner wall of the multi-petal meshing ring, four convex edge plates are fixed to the bottom side of the multi-petal meshing ring, and four The inner wall of the convex edge plate is connected with sampling buffer rods, and the bottom ends of the four sampling buffer rods are fixed with cutting sampling crushing heads, and the sides of the sampling buffer rods located on the upper and lower surfaces of the convex edge plate are sleeved with supporting springs, and the inner wall of the cutting sampling crushing head is provided with an impact cavity, and the inner wall of the impact cavity is inserted with a collision head, and the top of the collision head is fixed to the bottom of the impact hydraulic rod, and the sides of the three planetary disks are sleeved with connecting frames, and the bottom of the connecting frame is fixed with a bottom bearing assembly, one end of the bottom bearing assembly is provided with a redirecting assembly, and the top of the bottom bearing assembly is provided with a downward moving assembly, and the top of the downward moving assembly is fixed to the bottom of the central fixing assembly.

[0006] Preferably, the central fixing assembly includes a plurality of limit rods inserted into the inner wall of the main sampling motor, and the top ends of the limit rods are fixed to the upper surface of the main sampling motor, and the bottom of the limit rods is fixed with a central support plate, and one side of the planetary plate is connected to the outer side of the central support plate through tooth groove engagement.

[0007] Preferably, a sampling barrel is inserted into the inner wall of several of the limit rods, and the bottom end of the sampling barrel is inserted into the inner wall of the central support plate. The bottom of the sampling barrel is provided with four equally divided grooves arranged in a circular array, and an anti-scratch groove is provided at one end of the equally divided groove located on the inner wall of the sampling barrel. A damping shaft is fixed to the inner wall of the equally divided groove, and a split shaft sleeve is sleeved on the outer side of the damping shaft. A retraction cavity is provided on the inner wall of the split shaft sleeve, and a touch groove is provided on the outer side of the split shaft sleeve, and an inner cavity closing plate is fixed to the bottom of the split shaft sleeve.

[0008] Preferably, the outer stabilizing assembly comprises an outer support rod hinged to the outer side of the output end of the main sampling motor through an axis, and the bottom end of the outer support rod is hinged to the top end of the outer ring shaft disk through an axis.

[0009] Preferably, the bottom bearing assembly includes a pressure rod fixed to the lower surface of the connecting frame, an extension arm is fixed to the bottom of the pressure rod, a bottom bearing tube is fixed to one end of the extension arm, four arc-shaped toggle plates are fixed to the inner wall of the bottom bearing tube, and the lower surfaces of the four arc-shaped toggle plates are provided with anti-inward buckle grooves.

[0010] Preferably, the redirection assembly comprises a rotating motor fixed to the inner wall of the extension arm, a limiting collar is fixed to the output end of the rotating motor, and the inner wall of the limiting collar is sleeved on the bottom side of the multi-petal meshing ring.

[0011] Preferably, the downward moving assembly comprises an expansion plate sleeved on the top of the bottom bearing tube through an annular groove, a downward moving hydraulic rod is fixed on the top of the expansion plate, and a base of the downward moving hydraulic rod is fixed to the bottom of the central supporting plate.

[0012] Preferably, the outer sides of the three cutting and sampling crushing heads are all provided with threaded crushing grooves, and the surfaces of the crushing grooves are covered with a strengthening layer, and the three cutting and sampling crushing heads are arranged in an inclined shape.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention cooperates with the outer ring shaft disk and the planetary disk. The outer ring shaft disk rotates under the drive of the main sampling motor, thereby driving the internal planetary disk to revolve and rotate around the outer ring shaft disk, which can facilitate the cutting and sampling crushing head to quickly and stably break the soil and rock formation for sampling, and avoid the situation where the cutting and sampling crushing head is stuck when a single rotation is made. Because the planetary disk rotates under the drive of the outer ring shaft disk to provide a large torque, the cutting and sampling crushing head can more easily break the hard rock formation, thereby improving the stability and efficiency of the sampling device in breaking the soil and rock formation.

[0015] 2. The present invention cooperates with the cutting and sampling crushing head and the collision head. When the cutting and sampling crushing head contacts the rock formation and is compressed toward the collision head, the collision head will continuously impact the cutting and sampling crushing head driven by the impact hydraulic rod, so that the plane at the bottom end of the cutting and sampling crushing head can impact the rock formation, thereby assisting the high-speed rotating cutting and sampling crushing head to quickly break the rock formation for sampling.

[0016] 3. The present invention adopts the matching arrangement of the sampling buffer rod and the support spring. The support spring can retreat through the sampling buffer rod when the cutting and sampling crushing head contacts the hard rock layer for sampling, thereby reducing the risk of cracking of the crushing groove outside the cutting and sampling crushing head. At the same time, when the cutting and sampling crushing head drills into the structural fracture zone or the old cellar area, it can be directly fed back through the cutting and sampling crushing head in time, so that the staff can obtain the geological conditions of the mining area more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a sampling device for geological survey in mining areas proposed by the present invention;

[0018] Figure 2 A schematic cross-sectional structure diagram of a sampling device for geological survey in a mining area proposed by the present invention;

[0019] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the inner cavity closing plate of a sampling device for geological survey in mining areas proposed by the present invention;

[0021] Figure 5 A schematic diagram of the cross-sectional structure of a sampling device for geological survey in mining areas proposed by the present invention at the joint shaft sleeve;

[0022] Figure 6 This is a schematic diagram of the structure of the central support plate of a sampling device for geological survey in mining areas proposed by the present invention;

[0023] Figure 7 A schematic diagram of the explosion structure of a multi-petal meshing ring of a sampling device for geological survey in mining areas proposed by the present invention;

[0024] Figure 8 A schematic diagram of the explosion structure of a connection frame of a sampling device for geological survey in mining areas proposed by the present invention;

[0025] Fig. 9 A schematic diagram of the explosion structure of a sampling device for geological survey in a mining area proposed by the present invention hitting a hydraulic rod;

[0026] Fig.10 The present invention is a schematic diagram of the cross-sectional structure of the collision head of a sampling device for geological survey in mining areas.

[0027] In the figure: 1. main sampling motor; 2. outer ring shaft disk; 3. planetary disk; 4. spherical meshing head; 5. multi-petal meshing ring; 6. impact hydraulic rod; 7. convex edge plate; 8. sampling buffer rod; 9. cutting sampling crushing head; 10. support spring; 11. impact chamber; 12. collision head; 13. connecting frame; 14. limit rod; 15. central support disk; 16. sampling tube; 17. outer support rod; 18. pressure rod; 19. extension arm; 20. bottom bearing tube; 21. rotating motor; 22. limit collar; 23. expansion disk; 24. downward hydraulic rod; 25. equally divided groove; 26. damping shaft; 27. spliced ​​shaft sleeve; 28. retraction chamber; 29. ​​touch groove; 30. inner cavity closing plate; 31. arc toggle plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example, see Figures 1 to 10 A sampling device for geological exploration in a mining area comprises a main sampling motor 1 arranged at the bottom of the probe device, the inner wall of the output shaft of the main sampling motor 1 is plugged with a central fixing component, further, the central fixing component comprises a plurality of limit rods 14 plugged into the inner wall of the main sampling motor 1, and the top of the limit rod 14 is fixed to the upper surface of the main sampling motor 1, the bottom of the limit rod 14 is fixed with a central supporting disk 15, one side of the planetary disk 3 is connected to the outer side of the central supporting disk 15 through tooth groove engagement, and the inner wall of the plurality of limit rods 14 is plugged with a central fixing component. A sampling tube 16 is connected, and the bottom end of the sampling tube 16 is inserted into the inner wall of the central support plate 15. Four equally divided grooves 25 arranged in a circular array are provided at the bottom of the sampling tube 16. The equally divided grooves 25 are located at one end of the inner wall of the sampling tube 16 and are provided with anti-scratch grooves. A damping shaft 26 is fixed to the inner wall of the equally divided groove 25. A split shaft sleeve 27 is sleeved on the outer side of the damping shaft 26. A retraction cavity 28 is provided on the inner wall of the split shaft sleeve 27. A touch groove 29 is provided on the outer side of the split shaft sleeve 27. An inner cavity closing plate 30 is fixed to the bottom of the split shaft sleeve 27.

[0032] The further advantage of adopting the above method is that the main sampling motor 1 can fix the central support disk 15 through the limit rod 14 on the inner wall, and the outer ring shaft disk 2 can drive the planetary disk 3 to revolve and rotate when it rotates. The revolution of the planetary disk 3 can make the three cutting sampling crushing heads 9 synchronously crush the rock formation, improve the efficiency of rock formation crushing and facilitate the sampling of the device. The high-torque rotation of the planetary disk 3 can stably expand the hard hole to be drilled, thereby improving the stability and efficiency of the sampling device in the borehole. The cutting sampling crushing head 9 is driven by the rotating motor 21 After the cut sample is driven to move upward, it can be sent into the inner wall of the sampling tube 16 after it moves downward. Then, when the touching groove 29 follows the sampling tube 16 to move downward for the second time, the shaft sleeve 27 can be rotated to make the four inner cavity closing plates 30 close at the bottom of the inner wall of the sampling tube 16. Closing the bottom of the inner wall of the sampling tube 16 facilitates the rapid delivery of the sample, and the water content inside the sample will not change, affecting the accuracy of the test result. The four inner cavity closing plates 30 can be assembled into a plane adapted to the inner wall of the bottom end of the sampling tube 16.

[0033] The outer side of the output end of the main sampling motor 1 is connected to the outer ring shaft disk 2 through an outer stabilizing assembly. Furthermore, the outer stabilizing assembly includes an outer support rod 17 hinged to the outer side of the output end of the main sampling motor 1 through an axis, and the bottom end of the outer support rod 17 is hinged to the top end of the outer ring shaft disk 2 through an axis.

[0034] Further advantages of adopting the above method are: the outer support rod 17 connects the main sampling motor 1 and the outer ring shaft disk 2. Firstly, it is possible to install outer ring shaft disks 2 of different sizes. Secondly, it is possible to ensure the stability of the outer ring shaft disk 2 during high-speed rotation sampling, thereby avoiding the reaction force generated by the cutting and sampling crushing head 9 contacting the hard rock formation, causing the outer ring shaft disk 2 to be unevenly stressed and break, affecting the sampling of the device.

[0035] The inner wall of the outer ring shaft disk 2 is connected to three planetary disks 3 through tooth groove meshing. The three planetary disks 3 are arranged in a ring array with the central fixed component as the axis. The bottom of the three planetary disks 3 is fixed with a spherical meshing head 4. The inner wall of the inclined groove opened on the outside of the spherical meshing head 4 is plugged with a multi-petal meshing ring 5. The inner wall of the multi-petal meshing ring 5 is fixed with an impact hydraulic rod 6. Four convex edge plates 7 are fixed to the bottom side of the multi-petal meshing ring 5. The inner walls of the four convex edge plates 7 are plugged with sampling buffer rods 8. The bottom ends of the four sampling buffer rods 8 are fixed with cutting sampling crushing heads 9, and the sampling buffer rods 8 are located on the upper and lower surfaces of the convex edge plates 7. The side surfaces are sleeved with support springs 10. The outer sides of the three cutting sampling crushing heads 9 are provided with threaded crushing grooves, and the crushing The surface of the crushing groove is covered with a strengthening layer, and the three cutting and sampling crushing heads 9 are arranged in an inclined shape. An impact cavity 11 is opened on the inner wall of the cutting and sampling crushing head 9, and a collision head 12 is inserted into the inner wall of the impact cavity 11. The top of the collision head 12 is fixed to the bottom of the impact hydraulic rod 6. The sides of the three planetary disks 3 are sleeved with a connecting frame 13, and the bottom of the connecting frame 13 is fixed with a bottom bearing assembly. Further, the bottom bearing assembly includes a pressure rod 18 fixed to the lower surface of the connecting frame 13, and an extension arm 19 is fixed to the bottom of the pressure rod 18. A bottom bearing tube 20 is fixed to one end of the extension arm 19, and four arc-shaped toggle plates 31 are fixed to the inner wall of the bottom bearing tube 20, and the lower surfaces of the four arc-shaped toggle plates 31 are provided with anti-inward buckle grooves.

[0036] The further advantage of adopting the above method is that the pressure-bearing rod 18 can improve the pressure-bearing capacity of the extension arm 19, and prevent the extension arm 19 from breaking when the cutting and sampling crushing head 9 is subjected to a large reaction force. At the same time, it can limit the three multi-petal meshing rings 5, which is convenient for the three cutting and sampling crushing heads 9 to orbit and break the rock layer or soil layer for sampling. The inclined groove on the outside of the spherical meshing head 4 is opened in a trapezoidal shape, and the convex edge of the side of the multi-petal meshing ring 5 is the narrowest, so that the spherical meshing head 4 can drive the multi-petal meshing ring 5 to rotate, providing power for the rotation of the cutting and sampling crushing head 9. At the same time, the rotating motor 21 drives the limiting ring 22 to drive the multi-petal meshing ring 5 to rotate and change the inclination angle of the cutting and sampling crushing head 9 so that the bottom ends of the four cutting and sampling crushing heads 9 are relatively turned upward to cut the bottom of the sample or send out the sample. The multi-petal meshing ring 5 can still be connected with the inclined groove on the outside of the spherical meshing head 4 to ensure the stability of the self-rotation of the cutting and sampling crushing head 9. The collision head 12 can impact the cutting and sampling crushing head 9 when the cutting and sampling crushing head 9 contacts the hard rock layer and moves toward the multi-petal meshing ring 5. The collision head 12 When the sampling crushing head is in operation, the multi-petal meshing ring 5 and the spherical meshing head 4 remain connected and are not separated by the reaction force. The limiting ring 22 for fixing the multi-petal meshing ring 5 and the connecting frame 13 for supporting the spherical meshing head 4 are in a fixed state. Therefore, the multi-petal meshing ring 5 and the spherical meshing head 4 are not affected, so that the plane at the bottom of the cutting and sampling crushing head 9 hammers the rock formation, and the rock formation is broken by the crushing groove on the outside of the cutting and sampling crushing head 9. The rock formation is broken in this way, and the planetary disk 3 with high torque output can efficiently and stably break the hard rock. For layer sampling, the top of the arc-shaped toggle plate 31 can abut against the inner wall of the touch groove 29 after the sampling tube 16 moves downward. During the downward movement of the sampling tube 16, the arc-shaped toggle plate 31 first bends downward under the action of the anti-inward buckle groove. After the split shaft sleeve 27 drives the closed plate 30 connected thereto to rotate 45°, the split shaft sleeve 27 is driven to continue to rotate under the recovery of the arc-shaped toggle plate 31 until the closed plate 30 is spliced ​​into a plane and abuts against the bottom of the sampling tube 16, so that the cut sample can be easily sent out, and sampling deep into the soil or rock layer is convenient.

[0037] A redirecting assembly is provided at one end of the bottom bearing assembly. Furthermore, the redirecting assembly includes a rotating motor 21 fixed to the inner wall of the extension arm 19. A limiting ring 22 is fixed to the output end of the rotating motor 21. The inner wall of the limiting ring 22 is sleeved on the bottom side of the multi-petal meshing ring 5.

[0038] A further advantage of adopting the above method is that the rotating motor 21 can drive the cutting sampling crushing head 9 connected to the limiting ring 22 to change its angle, so as to separate the bottom of the sample from the rock layer or soil, and further send the sample into the interior of the sampling tube 16 through the cutting sampling crushing head 9.

[0039] A downward moving assembly is provided at the top of the bottom bearing assembly. Furthermore, the downward moving assembly includes an expansion plate 23 which is sleeved on the top of the bottom bearing tube 20 through an annular groove. A downward moving hydraulic rod 24 is fixed to the top of the expansion plate 23. The base of the downward moving hydraulic rod 24 is fixed to the bottom of the central supporting plate 15.

[0040] A further advantage of adopting the above method is that when the rotating motor 21 is working, the downward hydraulic rod 24 also needs to work synchronously to drive the bottom bearing tube 20 to move upward, so as to ensure that when the cutting sampling crushing head 9 changes its inclination angle, the multi-petal meshing ring 5 can always be connected with the spherical meshing head.

[0041] The top end of the downward moving component is fixed to the bottom end of the central fixing component.

[0042] The device is wrapped in a probe device, which is a prior art and will not be described in detail here. When working, three cutting sampling and crushing heads 9 are located outside the probe device to drill holes for sampling.

[0043] When the present invention is in use, the main sampling motor 1 drives the outer ring shaft disc 2 to rotate through the outer support rod 17. The outer ring shaft disc 2 rotates to drive the planetary disc 3 to revolve around the central support disc 15. At the same time, the outer ring shaft disc 2 rotates itself. The planetary disc 3 revolves through the connecting frame 13 to drive the three cutting sampling crushing heads 9 to revolve. The planetary disc 3 rotates to drive the multi-petal meshing ring 5 to rotate through the connected spherical meshing head 4, thereby driving the cutting sampling crushing head 9 to rotate to separate the bottom of the sample from the soil or rock layer.

[0044] When the cutting and sampling crushing head 9 contacts a rock formation with a relatively high hardness, the supporting spring 10 is compressed, so that the cutting and sampling crushing head 9 can move toward the multi-petal meshing ring 5. During the movement of the cutting and sampling crushing head 9, since only the sampling buffer rod 8 moves, the meshing state of the spherical meshing head 4 and the multi-petal meshing ring 5 is not affected. At this time, the impact hydraulic rod 6 can drive the collision head 12 to impact the approaching cutting and sampling crushing head 9, so that the cutting and sampling crushing head 9 rotates to crush the rock formation while continuously moving up and down to break the hard rock formation to obtain samples, thereby improving the efficiency and stability of obtaining samples from the rock formation.

[0045] When it is necessary to send the sample into the sampling tube 16, the rotating motor 21 works to drive the multi-petal meshing ring 5 connected to the limit ring 22 to change its inclination angle. At this time, the downward hydraulic rod 24 also needs to work to drive the expansion disk 23 to move upward, so that the multi-petal meshing ring 5 is always meshed and connected with the spherical meshing head 4. The change in inclination angle can separate the bottom of the sample from the rock layer or soil, and then the peeled sample is sent into the sampling tube 16 that has been moved downward for the second time. When the sample is sent in, the arc-shaped toggle plate 31 is against the touch groove 29 on the side of the downward-moving split shaft sleeve 27, driving the split shaft sleeve 27 to rotate until the inner cavity closing plate 30 is merged at the bottom of the sampling tube 16. Finally, the sampling tube 16 can be pulled upward to send the sample out.

[0046] The above are only preferred specific implementation modes 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 solutions and inventive concepts 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 sampling device for geological survey in mining areas, comprising a main sampling motor (1) arranged at the bottom of the probe device, characterized in that: The inner wall of the output shaft of the main sampling motor (1) is plugged with a central fixing component, the outer side of the output end of the main sampling motor (1) is connected to an outer ring shaft disc (2) via an outer stabilizing component, the inner side wall of the outer ring shaft disc (2) is connected to three planetary discs (3) via tooth groove meshing, the three planetary discs (3) are arranged in a ring array with the central fixing component as the axis, the bottom of the three planetary discs (3) are fixed with a spherical meshing head (4), the inner wall of the inclined groove provided on the outer side of the spherical meshing head (4) is plugged with a multi-petal meshing ring (5), the inner wall of the multi-petal meshing ring (5) is fixed with an impact hydraulic rod (6), the bottom side of the multi-petal meshing ring (5) is fixed with four convex edge plates (7), and the inner walls of the four convex edge plates (7) are plugged with sampling buffer rods (8) The bottom ends of the four sampling buffer rods (8) are all fixed with cutting sampling crushing heads (9), and the sides of the sampling buffer rods (8) located on the upper surface and the lower surface of the convex edge plate (7) are sleeved with support springs (10), the inner wall of the cutting sampling crushing head (9) is provided with an impact cavity (11), the inner wall of the impact cavity (11) is plugged with a collision head (12), the top of the collision head (12) is fixed to the bottom of the impact hydraulic rod (6), the sides of the three planetary discs (3) are sleeved with a connecting frame (13), the bottom of the connecting frame (13) is fixed with a bottom bearing assembly, one end of the bottom bearing assembly is provided with a redirecting assembly, the top of the bottom bearing assembly is provided with a downward moving assembly, and the top of the downward moving assembly is fixed to the bottom of the central fixing assembly.

2. A sampling device for geological survey in mining areas according to claim 1, characterized in that: The central fixing assembly comprises a plurality of limit rods (14) plugged into the inner wall of the main sampling motor (1), the top ends of the limit rods (14) being fixed to the upper surface of the main sampling motor (1), the bottom ends of the limit rods (14) being fixed with a central support disk (15), and one side of the planetary disk (3) being meshedly connected to the outer side of the central support disk (15) through tooth grooves.

3. A sampling device for geological survey in mining areas according to claim 2, characterized in that: The inner walls of a plurality of the limit rods (14) are plugged with sampling barrels (16), the bottom ends of the sampling barrels (16) are plugged with the inner wall of the central support plate (15), the bottom of the sampling barrel (16) is provided with four equally divided grooves (25) arranged in a ring array, one end of the equally divided groove (25) located on the inner wall of the sampling barrel (16) is provided with an anti-scratch groove, the inner wall of the equally divided groove (25) is fixed with a damping shaft (26), the outer side of the damping shaft (26) is sleeved with a split shaft sleeve (27), the inner wall of the split shaft sleeve (27) is provided with a retraction cavity (28), the outer side of the split shaft sleeve (27) is provided with a touch groove (29), and the bottom of the split shaft sleeve (27) is fixed with an inner cavity closing plate (30).

4. A sampling device for geological survey in mining areas according to claim 1, characterized in that: The outer stabilizing assembly comprises an outer support rod (17) hinged to the outer side of the output end of the main sampling motor (1) via a shaft, and the bottom end of the outer support rod (17) is hinged to the top end of the outer ring shaft disc (2) via a shaft.

5. The sampling device for geological survey in mining areas according to claim 3, characterized in that: The bottom bearing assembly comprises a pressure-bearing rod (18) fixed to the lower surface of the connecting frame (13); an extension arm (19) is fixed to the bottom of the pressure-bearing rod (18); a bottom bearing tube (20) is fixed to one end of the extension arm (19); four arc-shaped toggle plates (31) are fixed to the inner wall of the bottom bearing tube (20); and anti-inward buckling grooves are provided on the lower surfaces of the four arc-shaped toggle plates (31).

6. A sampling device for geological survey in mining areas according to claim 5, characterized in that: The redirection assembly comprises a rotating motor (21) fixed to the inner wall of the extension arm (19), a limiting collar (22) being fixed to the output end of the rotating motor (21), and the inner wall of the limiting collar (22) being sleeved on the bottom side of the multi-petal meshing ring (5).

7. A sampling device for geological survey in mining areas according to claim 6, characterized in that: The downward movement assembly comprises an expansion plate (23) sleeved on the top of the bottom bearing tube (20) through an annular groove, a downward movement hydraulic rod (24) is fixed on the top of the expansion plate (23), and the base of the downward movement hydraulic rod (24) is fixed to the bottom of the central support plate (15).

8. The sampling device for geological survey in mining areas according to claim 1, characterized in that: The outer sides of the three cutting and sampling crushing heads (9) are all provided with threaded crushing grooves, and the surfaces of the crushing grooves are coated with a strengthening layer. The three cutting and sampling crushing heads (9) are arranged in an inclined shape.

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