Coring device for geological exploration

Abstract

The utility model relates to the technical field of geological exploration, in particular to a coring device for geological exploration, which comprises a base, a mounting frame, a first linear driving mechanism, a sampling motor and a sampling mechanism. A coring through groove is formed in the middle of the base. And the mounting frame is fixedly erected on the top surface of the base. And the first linear driving mechanism is mounted at the top of the mounting frame. The sampling motor is connected with the first linear driving mechanism and is driven by the first linear driving mechanism to lift. The sampling mechanism comprises a connector, at least one sampling barrel and a drill bit which are sequentially arranged from top to bottom, the connector is connected with an output shaft of a sampling motor, the upper end of the sampling barrel is detachably connected with the connector or the adjacent sampling barrel above the sampling barrel, and the drill bit is connected with the connector. And the lower end of the sampling barrel is detachably connected with the adjacent sampling barrel or the drill bit below. Core drilling sampling can be carried out on deep geology, and continuous sampling from shallow to deep at the same position can be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, and more specifically, particularly to a coring device for geological exploration. Background Art

[0002] Geological engineering is a science that studies geological problems and solves them through engineering construction. It focuses on the study of geological phenomena, geological laws, and the interaction between geology and engineering. In the process of geological engineering exploration, it is necessary to take core samples and analyze the samples to conduct relevant research. The coring device for geological exploration is an indispensable tool in the geological exploration process.

[0003] The existing coring device for geological exploration has a limited length of the coring barrel, which makes it impossible to perform core sampling of deeper geology, let alone continuous sampling from shallow to deep at the same location. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] A coring device for geological exploration includes a base, a mounting frame, a first linear drive mechanism, a sampling motor and a sampling mechanism. A coring slot that runs through from top to bottom is provided in the middle of the base. The mounting frame is fixedly mounted on the top surface of the base and spans the coring slot. The first linear drive mechanism is mounted on the top of the mounting frame. The sampling motor is connected to the first linear drive mechanism and is driven to rise and fall by the first linear drive mechanism. The sampling mechanism includes a connector, a sampling barrel and a drill bit that are sequentially arranged from top to bottom, the connector is connected to the output shaft of the sampling motor, at least one sampling barrel is provided, the upper end of the sampling barrel is detachably connected to the connector or the adjacent sampling barrel above, and the lower end of the sampling barrel is detachably connected to the adjacent sampling barrel or drill bit below.

[0006] Furthermore, the mounting frame has an n-shaped structure, and a fixing mechanism for limiting the movement of the sampling tube is arranged on the inner side of the bottom of both sides of the mounting frame, and the fixing mechanism includes a clamp and a second linear drive mechanism that drives the clamp to move, and a clamp block is arranged on the side of the clamp close to the sampling tube, and a clamp groove is arranged on the peripheral side of the top of the sampling tube, and the second linear drive mechanism is connected to the mounting frame.

[0007] Furthermore, the card block can be telescopically arranged.

[0008] Furthermore, the side of the clamp close to the sampling barrel is in an arc-shaped structure, one or more clamping blocks are provided, and the more than one clamping blocks are arranged at equal distances, and the sampling barrel has a plurality of clamping grooves adapted to the clamping blocks in an annular array around the sampling barrel.

[0009] Furthermore, the second linear drive mechanism is an electric telescopic rod or a hydraulic push rod, and both ends of the electric telescopic rod or the hydraulic push rod are respectively connected to the clamp and the mounting frame.

[0010] Furthermore, the connector, the sampling tube and the drill bit are all threadedly connected.

[0011] Furthermore, slide grooves are arranged on both sides of the mounting frame and are slidably connected to a mounting plate. Slide blocks matching the slide grooves are arranged at both ends of the mounting plate. The first linear drive mechanism is a first hydraulic cylinder. The output end of the first hydraulic cylinder is connected to the top surface of the mounting plate. The sampling motor is fixed to the bottom surface of the mounting plate.

[0012] Furthermore, movable wheels are arranged on the bottom surface of the base.

[0013] Furthermore, three second hydraulic cylinders are distributed in a triangle shape on the base, the output shaft of the second hydraulic cylinder passes through the base and a support plate is fixed at the end, and a plurality of protrusions are fixed on the bottom surface of the support plate.

[0014] Furthermore, the outer side wall of the sampling tube is provided with a mark or scale for indicating the length of the sampling tube.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The coring device for geological exploration in the utility model has a sampling motor output end connected to a connector, and a sampling barrel and a drill bit are connected in sequence below the connector. When the sampling motor drives the sampling mechanism to rotate, the first linear drive mechanism drives the sampling motor and the sampling mechanism to move downward, and the drill bit drills downward. Initially, a sampling barrel is installed. When the first sampling barrel is drilled, the first sampling barrel and the connector are disassembled, the sampling motor and the connector are lifted, and the second sampling barrel is installed to continue drilling until the target depth is reached, so that core sampling can be performed on deeper geology, and continuous sampling from shallow to deep can be performed at the same position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of a coring device for geological exploration in an embodiment of the utility model.

[0019] Figure 2 It is a schematic diagram of the overall structure of the coring device for geological exploration in another state in an embodiment of the utility model.

[0020] Figure 3 It is a partial structural exploded diagram of a coring device for geological exploration in an embodiment of the utility model.

[0021] Figure 4 It is a partial structural sectional view of an embodiment of the utility model.

[0022] Figure 5 It is a structural schematic diagram of the sampling tube in the embodiment of the utility model.

[0023] In the figure: 1. base; 2. coring slot; 3. mounting frame; 4. first linear drive mechanism; 5. sampling motor; 6. connector; 7. sampling tube; 8. drill bit; 9. clamp; 10. second linear drive mechanism; 11. clamp block; 12. clamp slot; 13. slide slot; 14. mounting plate; 15. moving wheel; 16. second hydraulic cylinder; 17. support plate; 18. convex thorn; 19. telescopic slot; 20. spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 , Figure 2 As shown, the coring device for geological exploration in this embodiment includes a base 1, a mounting frame 3, a first linear drive mechanism 4, a sampling motor 5 and a sampling mechanism. A coring slot 2 that runs through from top to bottom is provided in the middle of the base 1. The mounting frame 3 is fixedly mounted on the top surface of the base 1 and spans the coring slot 2. The first linear drive mechanism 4 is mounted on the top of the mounting frame 3. The sampling motor 5 is connected to the first linear drive mechanism 4 and is driven to rise and fall by the first linear drive mechanism 4. The sampling mechanism includes a connector 6, a sampling barrel 7 and a drill bit 8 that are arranged in sequence from top to bottom. The connector 6 is connected to the output shaft of the sampling motor 5. At least one sampling barrel 7 is provided. The upper end of the sampling barrel 7 is detachably connected to the connector 6 or the adjacent sampling barrel 7 above, and the lower end of the sampling barrel 7 is detachably connected to the adjacent sampling barrel 7 or the drill bit 8 below.

[0026] The output end of the sampling motor 5 is connected to the connector 6, and the lower part of the connector 6 is connected in sequence to a sampling barrel 7 and a drill bit 8. While the sampling motor 5 drives the sampling mechanism to rotate, the first linear drive mechanism 4 drives the sampling motor 5 and the sampling mechanism to move downward, and the drill bit 8 drills downward. Initially, a sampling barrel 7 is installed. When the first sampling barrel 7 is drilled, the first sampling barrel 7 and the connector 6 are disassembled, the sampling motor 5 and the connector 6 are lifted, and the second sampling barrel 7 is installed to continue drilling until the target depth is reached, thereby enabling core sampling of deeper geology and enabling continuous sampling from shallow to deep at the same position.

[0027] The first linear drive mechanism 4 can be a hydraulic cylinder, a screw transmission or other drive structure. In the present embodiment, the mounting frame 3 is an n-shaped structure. The first linear drive mechanism 4 is a first hydraulic cylinder, which is mounted on the top surface of the mounting frame 3. The output end of the first hydraulic cylinder passes through the top plate of the mounting frame 3 and is connected to the mounting plate 14. The sampling motor 5 is fixed to the bottom surface of the mounting plate 14.

[0028] In this embodiment, if Figure 3 As shown, the connector 6 is a cylindrical body with an opening at the lower end, and the top surface of the connector 6 is fixedly connected to the output end of the sampling motor 5, and a plurality of air outlets are provided on the side wall of the connector 6. The sampling tube 7 and the drill bit 8 are both cylindrical bodies with openings at both ends, and the drill bit 8 is provided with drill teeth. The connector 6, the sampling tube 7 and the drill bit 8 are all threadedly connected. A fixing mechanism for limiting the movement of the sampling tube 7 is provided on the inner side of the bottom of both sides of the mounting frame 3, and the fixing mechanism includes a clamp 9 and a second linear drive mechanism 10 that drives the clamp 9 to move. A clamp block 11 is provided on the side of the clamp 9 close to the sampling tube 7, and a clamp groove 12 is provided on the peripheral side of the top of the sampling tube 7. The second linear drive mechanism 10 is connected to the mounting frame 3.

[0029] Specifically, the two clamps 9 are arranged opposite to each other, and the side of the two clamps 9 close to the sampling barrel 7 is an arc-shaped structure, preferably a semicircular structure adapted to the sampling barrel 7, and the clamp block 11 inside the clamp 9 is provided with one or more, preferably two or three, and three in this embodiment, and the three clamp blocks 11 are arranged equidistantly inside the clamp 9, and the two clamps 9 are spliced ​​and combined, and the inside is a circular structure, and the six clamp blocks 11 are distributed in the form of a circular array. Correspondingly, the outer circular array of the sampling barrel 7 has six card slots 12 adapted to the clamp blocks 11. The second linear drive mechanism 10 is an electric telescopic rod or a hydraulic push rod, and the two ends of the electric telescopic rod or the hydraulic push rod are respectively connected to the clamp 9 and the mounting frame 3, so as to be able to drive the clamp 9 to approach or move away from the sampling barrel 7.

[0030] As the sampling tube 7 is drilled in to take the core, when the slot 12 reaches the height of the block 11, drilling stops, the clamp 9 approaches the sampling tube 7, the block 11 penetrates into the slot 12 to fix the sampling tube 7, the motor rotates in the opposite direction, and at the same time the first hydraulic cylinder is lifted to separate the sampling tube 7 of the fixed column from the connector 6, so that the sampling tube 7 can be installed and then drilling continues.

[0031] In this embodiment, the card block 11 can be retracted, specifically, as Figure 4 As shown, a telescopic slot 19 is provided on one side of the clamp 9 close to the sampling tube 7, and a spring 20 is arranged in the telescopic slot 19. One end of the spring 20 is fixed to the inner side of the telescopic slot 19, and the other end is fixed to the block 11. The block 11 can be fully extended into the telescopic slot 19. When the spring 20 is not subjected to force, the block 11 partially extends into the telescopic slot 19. As the sampling tube 7 is drilled into the core, when the slot 12 reaches the height of the block 11 and stops drilling, if the slot 12 does not correspond to the block 11, the block 11 is squeezed and extends into the telescopic slot 19. The sampling tube 7 is slowly rotated. Once the slot 12 corresponds to the block 11, the block 11 quickly extends into the slot 12 under the action of the spring 20.

[0032] In this embodiment, slide grooves 13 are arranged on both sides of the mounting frame 3, and the lower end of the slide groove 13 is located above the second linear drive mechanism 10. Slide blocks adapted to the slide groove 13 are fixed at both ends of the mounting plate 14, and the slide blocks are slidably arranged in the slide groove 13, thereby effectively preventing deviation during the drilling process.

[0033] In this embodiment, a moving wheel 15 is provided on the bottom surface of the base 1, and the three moving wheels 15 are distributed in a triangle, so as to facilitate movement. Three second hydraulic cylinders 16 are distributed in a triangle on the base 1, and the triangle formed by the connection lines of the three moving wheels 15 is in the opposite direction to the triangle formed by the connection lines of the three second hydraulic cylinders 16. The output shaft of the second hydraulic cylinder 16 passes through the base 1 and a support plate 17 is fixed at the end. A plurality of convex thorns 18 are fixed on the bottom surface of the support plate 17, so as to facilitate fixing the coring device for geological exploration and prevent movement during the coring process. A push handle is also provided on one side of the top surface of the base 1.

[0034] Preferably, in this embodiment, Figure 5 As shown, a plurality of sampling tubes 7 of different lengths can be provided to adapt to coring work of different requirements. The outer wall of the sampling tube 7 is provided with a mark or scale for indicating the length of the sampling tube 7 for easy use.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A coring device for geological exploration, characterized in that: include: A base (1), wherein a coring groove (2) is formed in the middle of the base (1) and passes through the base from top to bottom; A mounting frame (3), the mounting frame (3) being fixedly mounted on the top surface of the base (1) and spanning the coring slot (2); A first linear drive mechanism (4), wherein the first linear drive mechanism (4) is mounted on the top of the mounting frame (3); A sampling motor (5), the sampling motor (5) is connected to the first linear drive mechanism (4) and is driven to rise and fall by the first linear drive mechanism (4); A sampling mechanism, the sampling mechanism comprising a connecting head (6), a sampling barrel (7) and a drill bit (8) arranged in sequence from top to bottom, the connecting head (6) being connected to the output shaft of a sampling motor (5), at least one sampling barrel (7) being provided, the upper end of the sampling barrel (7) being detachably connected to the connecting head (6) or the upper adjacent sampling barrel (7), and the lower end of the sampling barrel (7) being detachably connected to the lower adjacent sampling barrel (7) or the drill bit (8).

2. The coring device for geological exploration according to claim 1, characterized in that: The mounting frame (3) is of an n-shaped structure. A fixing mechanism for limiting the movement of the sampling barrel (7) is arranged on the inner sides of the bottom of both sides of the mounting frame (3). The fixing mechanism comprises a clamp (9) and a second linear drive mechanism (10) for driving the clamp (9) to move. A clamping block (11) is arranged on the side of the clamp (9) close to the sampling barrel (7). A clamping groove (12) is arranged on the peripheral side of the top of the sampling barrel (7). The second linear drive mechanism (10) is connected to the mounting frame (3).

3. The coring device for geological exploration according to claim 2, characterized in that: The card block (11) can be telescopically arranged.

4. The coring device for geological exploration according to claim 3, characterized in that: The side of the clamp (9) close to the sampling barrel (7) is in an arc-shaped structure, one or more clamping blocks (11) are provided, and the more than one clamping blocks (11) are arranged at equal distances, and a plurality of clamping grooves (12) adapted to the clamping blocks (11) are provided in an annular array around the sampling barrel (7).

5. The coring device for geological exploration according to any one of claims 2 to 4, characterized in that: The second linear drive mechanism (10) is an electric telescopic rod or a hydraulic push rod, and the two ends of the electric telescopic rod or the hydraulic push rod are respectively connected to the clamp (9) and the mounting frame (3).

6. The coring device for geological exploration according to claim 2, characterized in that: The connector (6), the sampling tube (7) and the drill bit (8) are all threadedly connected.

7. The coring device for geological exploration according to claim 5, characterized in that: Slide grooves (13) are arranged opposite to each other on both sides of the mounting frame (3) and are slidably connected to a mounting plate (14). Slide blocks matching the slide grooves (13) are arranged at both ends of the mounting plate (14). The first linear drive mechanism is a first hydraulic cylinder. The output end of the first hydraulic cylinder is connected to the top surface of the mounting plate (14). The sampling motor is fixed to the bottom surface of the mounting plate (14).

8. The coring device for geological exploration according to claim 1, characterized in that: The bottom surface of the base (1) is provided with moving wheels (15).

9. The coring device for geological exploration according to claim 1, characterized in that: Three second hydraulic cylinders (16) are distributed in a triangular shape on the base (1); an output shaft of the second hydraulic cylinder (16) passes through the base (1) and a support plate (17) is fixed at the end thereof; a plurality of protrusions (18) are fixed on the bottom surface of the support plate (17).

10. The coring device for geological exploration according to claim 5, characterized in that: The outer side wall of the sampling tube (7) is provided with a mark or scale for indicating the length of the sampling tube (7).

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