A sampling device for coalfield geological exploration

Abstract

The utility model discloses a kind of sampling devices for coalfield geological exploration, comprising: metal cylinder, the top of the metal cylinder is threadedly connected with screw cap, two handles are fixed symmetrically outside the screw cap, sampling hole is provided in the bottom side of the metal cylinder, sampling collection piece is fixedly installed in the inside of the metal cylinder, sampling collection groove is provided in the outside of the sampling collection piece, the sampling collection groove is communicated with sampling hole, the outside of the metal cylinder is provided with scale line;Sampling plugging structure, slidingly installed in the inside of metal cylinder, and cooperate with sampling hole, sampling hole is plugged when not using.This device is through low friction transmission, dynamic plugging, composite power coupling and so on innovative design, realizes the integrated operation of efficient drilling, accurate depth control, leakproof collection in the process of coalfield geological sampling, significantly improves the sampling reliability and operation efficiency under complex geological conditions, while reducing maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, and in particular to a sampling device for coalfield geological exploration. Background Technology

[0002] Geological exploration is short for geological exploration work. Broadly speaking, it can generally be understood as a synonym for geological work. It involves conducting investigations and research on the geological conditions of a certain area, such as rocks, stratigraphy, minerals, groundwater, and landforms, based on the needs of economic construction, national defense construction, and scientific and technological development. Coalfield geological exploration, as the name suggests, involves exploring coalfield geology. In coalfield geological exploration, sampling devices are used to collect soil samples from the coalfield geology, which are then analyzed and studied later.

[0003] Publication (Announcement) No.: CN222049623U discloses a sampling device for coalfield geological exploration, including a sampling mechanism and a connecting mechanism externally. The sampling mechanism includes a support plate, a first motor fixedly connected to the top of the support plate, a first rotating shaft installed at the bottom of the first motor, a connecting plate installed at the bottom of the first rotating shaft, a groove formed at the bottom of the connecting plate, a bidirectional lead screw installed inside the groove, a second motor installed on the left side of the bidirectional lead screw, a moving block movably connected to the outside of the bidirectional lead screw, and a fixing plate fixedly connected to the middle of the bottom of the connecting plate. This sampling device for coalfield geological exploration can simultaneously obtain multiple samples through the sampling mechanism, and the connecting mechanism facilitates the installation and disassembly of the sampling cylinder, thereby improving sampling efficiency and ease of assembly and disassembly.

[0004] Existing coalfield geological exploration methods are generally large in volume and not convenient for flexible use. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a sampling device for coalfield geological exploration, which addresses the problem that existing coalfield geological exploration devices are large in size and inconvenient to use flexibly.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a sampling device for coalfield geological exploration, comprising:

[0007] A metal cylinder has a threaded cap threaded to its top, two handles symmetrically fixed to the outside of the threaded cap, a sampling hole on the bottom side of the metal cylinder, a sampling collection device fixedly installed on the inside of the metal cylinder, a sampling collection groove on the outside of the sampling collection device, the sampling collection groove being connected to the sampling hole, and scale lines on the outside of the metal cylinder.

[0008] The sampling sealing structure is slidably installed on the inside of the metal cylinder and cooperates with the sampling hole. When not in use, the sampling hole is sealed. The side opening of the sampling hole is raised outward to facilitate the collection of geological samples during rotation.

[0009] A rotary power mechanism is mounted on a handle and located inside the metal cylinder. A drill bit is mounted at the bottom end of the rotary power mechanism and is rotatably connected to the bottom end of the metal cylinder.

[0010] Preferably, the top of the drill bit is provided with an annular groove, and an annular block is fixedly installed at the bottom of the metal cylinder. Multiple balls are embedded in the bottom of the annular block, and the multiple balls are slidably connected to the inner wall of the annular groove. The annular block and the annular groove are adapted to each other. The friction between the annular block and the annular groove can be reduced by the cooperation of the balls.

[0011] Preferably, the rotary power mechanism includes a servo motor, which is mounted on the top of the threaded cover. A connecting block is mounted on the output shaft of the servo motor, and a hexagonal cone is connected to the bottom end of the connecting block. A power shaft is fixedly mounted on the bottom end of the hexagonal cone, and the bottom end of the power shaft is fixedly mounted to the top of the drill bit. A bearing is fixedly mounted on the inner side of the sampling collection component, and the power shaft is rotatably connected to the sampling collection component through the bearing. The servo motor drives the power shaft to rotate through the cooperation of the connecting block and the hexagonal cone, and the power shaft drives the drill bit to rotate to drill holes in the geology.

[0012] Preferably, the sampling and sealing structure includes an arc-shaped push rod, a sliding hole on the sampling collection component, the arc-shaped push rod slidingly connected to the inner wall of the sliding hole, an arc-shaped sampling hole sealing plate fixedly installed at the bottom end of the arc-shaped push rod, the arc-shaped sampling hole sealing plate slidingly connected to the inner wall of the sampling hole, a spring fixedly installed between the top of the arc-shaped sampling hole sealing plate and the inner wall of the sampling collection groove, the spring being sleeved on the outside of the arc-shaped push rod, a threaded rod fixedly installed at the top of the arc-shaped push rod, a strip-shaped hole on the outside of the metal cylinder, the threaded rod being adapted to the strip-shaped hole, a handle block threadedly connected to the outside of the threaded rod, an internal threaded hole on the inner side of the handle block, the internal threaded hole being threadedly connected to the threaded rod; rotating the handle block and disengaging it from the metal cylinder, unlocking it, and pulling the handle block upwards, the handle block drives the arc-shaped push rod upwards via the threaded rod, the arc-shaped push rod drives the arc-shaped sampling hole sealing plate upwards and away from the sampling hole, releasing the sealing of the sampling hole; the reverse operation can re-seal the hole.

[0013] Preferably, a protective cover is fixedly installed on the top of the threaded cover, the servo motor is located inside the protective cover, a power distribution box is provided inside the protective cover, and a push switch is provided on the top of the protective cover, the push switch being connected to the power distribution box.

[0014] Preferably, the bottom of the connecting block is provided with a hexagonal connecting groove, and the hexagonal cone head is adapted to the hexagonal connecting groove, so that the servo motor and the power shaft can be movably connected.

[0015] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0016] 1. Low-friction rotary connection structure with annular groove and ball bearing design: An annular groove is set at the top of the drill bit, and an annular block with ball bearings is configured at the bottom of the metal cylinder. Rolling friction replaces traditional sliding friction, significantly reducing the rotational resistance of the drill bit, improving drilling efficiency, and extending component life. Modular and detachable: The adaptable design of the annular block and annular groove facilitates disassembly and maintenance, enhancing equipment maintainability.

[0017] 2. Dynamic sealing sampling mechanism with spring-arc plate interlocking system: The sampling sealing structure uses an arc-shaped push rod linked with a spring. The lifting and lowering of the arc-shaped sealing plate is controlled by a handle block, enabling one-button opening and closing of the sampling hole, avoiding the cumbersome operation caused by traditional bolt fixing. Leak-proof sealing: The spring preload ensures that the sealing plate fits tightly against the sampling hole when not sampling, preventing sample spillage or external contamination.

[0018] 3. Composite power transmission design with hexagonal conical head for quick coupling: The servo motor engages with the hexagonal slot of the connecting block through the hexagonal conical head, achieving quick docking of the power shaft. This design balances transmission stability and ease of assembly and disassembly, and is superior to traditional keyway or flange connections.

[0019] Bearing support for vibration reduction: The power shaft is connected to the sampling and collection device through a bearing, which reduces radial vibration during high-speed rotation and improves drilling accuracy.

[0020] 4. Optimized sampling hole with upturned edge and flow guiding scraping structure: The edge of the sampling hole is upturned to form a sharp blade, which enhances the soil scraping ability when the metal cylinder rotates. Combined with the directional flow of the sampling collection trough, it significantly improves the sample collection efficiency.

[0021] 5. Deep visualization and operation integration, external scale lines: the scale is marked on the outside of the metal cylinder to realize real-time visualization of sampling depth and avoid data errors caused by traditional blind drilling.

[0022] Integrated control: The protective cover integrates a push-button switch and a power distribution box, making the power control module compact and improving safety and portability in the field.

[0023] 6. Optimized human-computer interaction, dual handle grip + threaded locking: The symmetrical handle design provides a stable force application point, and with the helical locking mechanism of the threaded rod and handle block, the sealing plate position can be fixed with one hand, simplifying the operation process.

[0024] Spring reset assist: The spring automatically resets when the sealing plate is closed, reducing the need for manual intervention.

[0025] 7. Split-type structure design with detachable threaded cap: The metal cylinder and the threaded cap are connected by threads, which makes it easy to clean the residual samples in the sampling collection tank and solves the problem of difficult cleaning of traditional one-piece structures.

[0026] This utility model achieves integrated operation of efficient drilling, precise depth control, and leak-proof sampling in coalfield geological sampling through innovative designs such as low-friction transmission, dynamic sealing, and composite power coupling. It significantly improves the sampling reliability and operational efficiency under complex geological conditions, while reducing maintenance costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0028] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0029] Figure 3 This is a schematic diagram of part A of the present utility model;

[0030] Figure 4 This is a schematic diagram of part B of the present utility model;

[0031] Figure 5 This is a three-dimensional structural diagram of the sampling and blocking structure of this utility model;

[0032] Figure 6 This is a three-dimensional structural diagram of the sampling and collection device of this utility model;

[0033] Figure 7 This is a schematic diagram of the drill bit structure of this utility model;

[0034] Figure 8 This is a three-dimensional structural diagram of the connecting block of this utility model;

[0035] Figure 9 This is a schematic diagram of the structure of the hexagonal cone head of this utility model.

[0036] The components include: 1. Metal cylinder; 11. Sampling hole; 12. Threaded cap; 13. Handle; 14. Strip hole; 2. Drill bit; 21. Annular groove; 22. Annular block; 23. Ball bearing; 3. Protective cover; 31. Push switch; 32. Power distribution box; 4. Rotary power mechanism; 41. Servo motor; 42. Power shaft; 43. Connecting block; 431. Hexagonal connecting groove; 44. Hexagonal cone head; 5. Sampling and sealing structure; 51. Arc-shaped push rod; 52. Arc-shaped sampling hole sealing plate; 53. Threaded rod; 54. Handle block; 55. Internal threaded hole; 56. Spring; 6. Sampling collection component; 61. Sampling collection groove; 7. Bearing. Detailed Implementation

[0037] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0038] Example

[0039] like Figures 1-9 As shown, this utility model provides a sampling device for coalfield geological exploration, including a metal cylinder 1, a rotary power mechanism 4, and a sampling sealing structure 5. The top of the metal cylinder 1 is threadedly connected to a threaded cap 12, and two handles 13 are symmetrically fixed to the outside of the threaded cap 12. A sampling hole 11 is opened on the bottom side of the metal cylinder 1, and a sampling collection component 6 is fixedly installed on the inside of the metal cylinder 1. A sampling collection groove 61 is opened on the outside of the sampling collection component 6, and the sampling collection groove 61 is connected to the sampling hole 11. A scale line is provided on the outside of the metal cylinder 1. The sampling sealing structure 5 is slidably installed on the inside of the metal cylinder 1 and cooperates with the sampling hole 11. When not in use, the sampling hole 11 is sealed. The edge of the sampling hole 11 is raised outward to facilitate the collection of geological samples during rotation. The rotary power mechanism 4 is installed on the handle 13 and located inside the metal cylinder 1. A drill bit 2 is installed at the bottom end of the rotary power mechanism 4, and the drill bit 2 is rotatably connected to the bottom end of the metal cylinder 1.

[0040] In this embodiment, the top of the drill bit 2 is provided with an annular groove 21, and the bottom of the metal cylinder 1 is fixedly installed with an annular block 22. The bottom of the annular block 22 is embedded with a plurality of balls 23, and the plurality of balls 23 are slidably connected to the inner wall of the annular groove 21. The annular block 22 is adapted to the annular groove 21. The friction between the annular block 22 and the annular groove 21 can be reduced by the cooperation of the balls 23.

[0041] In this embodiment, the rotary power mechanism 4 includes a servo motor 41, which is mounted on the top of the threaded cover 12. A connecting block 43 is mounted on the output shaft of the servo motor 41, and a hexagonal cone 44 is connected to the bottom end of the connecting block 43. A power shaft 42 is fixedly mounted on the bottom end of the hexagonal cone 44, and the bottom end of the power shaft 42 is fixedly mounted to the top of the drill bit 2. A bearing 7 is fixedly mounted on the inner side of the sampling collection component 6, and the power shaft 42 is rotatably connected to the sampling collection component 6 through the bearing 7. The servo motor 41 drives the power shaft 42 to rotate through the cooperation of the connecting block 43 and the hexagonal cone 44, and the power shaft 42 drives the drill bit 2 to rotate to drill holes in the geology.

[0042] In this embodiment, the sampling and sealing structure 5 includes an arc-shaped push rod 51. A sliding hole is provided on the sampling collection component 6. The arc-shaped push rod 51 is slidably connected to the inner wall of the sliding hole. An arc-shaped sampling hole sealing plate 52 is fixedly installed at the bottom end of the arc-shaped push rod 51. The arc-shaped sampling hole sealing plate 52 is slidably connected to the inner wall of the sampling hole 11. A spring 56 is fixedly installed between the top of the arc-shaped sampling hole sealing plate 52 and the inner wall of the sampling collection groove 61. The spring 56 is sleeved on the outside of the arc-shaped push rod 51. A threaded rod 53 is fixedly installed at the top of the arc-shaped push rod 51. The outer side of the metal cylinder 1... A strip-shaped hole 14 is provided on the side. The threaded rod 53 is adapted to the strip-shaped hole 14. A handle block 54 is threadedly connected to the outer side of the threaded rod 53. An internal threaded hole 55 is provided on the inner side of the handle block 54. The internal threaded hole 55 is threadedly connected to the threaded rod 53. Rotate the handle block 54 and move it away from the metal cylinder 1 to unlock it. Pull the handle block 54 upward. The handle block 54 drives the arc-shaped push rod 51 to move upward through the threaded rod 53. The arc-shaped push rod 51 drives the arc-shaped sampling hole sealing plate 52 to move upward and away from the sampling hole 11, thus releasing the sealing of the sampling hole 11. The reverse operation can seal 11.

[0043] In this embodiment, a protective cover 3 is fixedly installed on the top of the threaded cover 12, the servo motor 41 is located inside the protective cover 3, a power distribution box 32 is provided inside the protective cover 3, and a push switch 31 is provided on the top of the protective cover 3, the push switch 31 is connected to the power distribution box 32.

[0044] In this embodiment, a hexagonal connecting groove 431 is provided at the bottom of the connecting block 43, and the hexagonal cone head 44 is adapted to the hexagonal connecting groove 431, so that the servo motor 41 and the power shaft 42 can be movably connected.

[0045] Operating method: When using, hold the handle 13 with both hands and align the drill bit 2 with the location to be sampled. Press the switch 31 to start the servo motor 41. The servo motor 41 drives the power shaft 42 to rotate through the connection block 43 and the hexagonal cone head 44. The power shaft 42 drives the drill bit 2 to rotate and drill a hole in the geology, pushing the whole structure downwards to facilitate soil breaking and sampling. Mark the sampling depth through the scale lines on the outside of the metal cylinder 1. When the sampling hole 11 is inserted into the location to be sampled, rotate the handle block 54 to move it away from the metal cylinder 1, unlock it, and pull the handle block 54 upwards. The handle block 54 drives the arc-shaped push rod 51 to move upwards through the threaded rod 53. The arc-shaped push rod 51 drives the arc-shaped sampling hole sealing plate 52 to move upward and away from the sampling hole 11, releasing the sealing of the sampling hole 11. The threaded rod 53 is rotated to squeeze the outside of the metal cylinder 1, fixing the arc-shaped sampling hole sealing plate 52 on the outside away from the sampling hole 11. The metal cylinder 1 is rotated by the two handles 13, and the metal cylinder 1 scrapes the soil through the sampling hole 11 and collects it into the sampling collection trough 61. Then, the threaded rod 53 is pushed in the opposite direction. Through the elastic force of the spring 56, the arc-shaped sampling hole sealing plate 52 continues to seal the sampling hole 11, completing the sampling. Then, the two handles 13 are pulled upward to remove the whole thing.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling device for coalfield geological exploration, characterized in that: include: A metal cylinder (1) has a threaded cap (12) threaded to its top. Two handles (13) are symmetrically fixed to the outside of the threaded cap (12). A sampling hole (11) is provided on the bottom side of the metal cylinder (1). A sampling collection device (6) is fixedly installed on the inside of the metal cylinder (1). A sampling collection groove (61) is provided on the outside of the sampling collection device (6). The sampling collection groove (61) is connected to the sampling hole (11). A scale line is provided on the outside of the metal cylinder (1). The sampling sealing structure (5) is slidably installed on the inner side of the metal cylinder (1) and cooperates with the sampling hole (11) to seal the sampling hole (11) when not in use; A rotary power mechanism (4) is mounted on a handle (13) and located inside a metal cylinder (1). A drill bit (2) is mounted at the bottom of the rotary power mechanism (4), and the drill bit (2) is rotatably connected to the bottom of the metal cylinder (1).

2. The sampling device for coalfield geological exploration according to claim 1, characterized in that: The top of the drill bit (2) is provided with an annular groove (21), and the bottom of the metal cylinder (1) is fixedly installed with an annular block (22). Multiple balls (23) are embedded in the bottom of the annular block (22), and the multiple balls (23) are slidably connected to the inner wall of the annular groove (21). The annular block (22) is adapted to the annular groove (21).

3. A sampling device for coalfield geological exploration according to claim 1, characterized in that: The rotary power mechanism (4) includes a servo motor (41), which is mounted on the top of the threaded cover (12). A connecting block (43) is mounted on the output shaft of the servo motor (41). A hexagonal cone (44) is connected to the bottom end of the connecting block (43). A power shaft (42) is fixedly mounted on the bottom end of the hexagonal cone (44). The bottom end of the power shaft (42) is fixedly mounted to the top of the drill bit (2).

4. A sampling device for coalfield geological exploration according to claim 3, characterized in that: A bearing (7) is fixedly installed on the inner side of the sampling collection device (6), and the power shaft (42) is rotatably connected to the sampling collection device (6) through the bearing (7).

5. A sampling device for coalfield geological exploration according to claim 1, characterized in that: The sampling sealing structure (5) includes an arc-shaped push rod (51). The sampling collection component (6) has a sliding hole. The arc-shaped push rod (51) is slidably connected to the inner wall of the sliding hole. An arc-shaped sampling hole sealing plate (52) is fixedly installed at the bottom end of the arc-shaped push rod (51). The arc-shaped sampling hole sealing plate (52) is slidably connected to the inner wall of the sampling hole (11). A spring (56) is fixedly installed between the top of the arc-shaped sampling hole sealing plate (52) and the inner wall of the sampling collection groove (61). The spring (56) is sleeved on the outside of the arc-shaped push rod (51). A threaded rod (53) is fixedly installed on the top of the arc-shaped push rod (51). A strip hole (14) is opened on the outside of the metal cylinder (1). The threaded rod (53) is adapted to the strip hole (14). A handle block (54) is threadedly connected to the outside of the threaded rod (53). An internal thread hole (55) is opened on the inside of the handle block (54). The internal thread hole (55) is threadedly connected to the threaded rod (53).

6. A sampling device for coalfield geological exploration according to claim 3, characterized in that: A protective cover (3) is fixedly installed on the top of the threaded cover (12). The servo motor (41) is located inside the protective cover (3). A power distribution box (32) is provided inside the protective cover (3). A push switch (31) is provided on the top of the protective cover (3). The push switch (31) is connected to the power distribution box (32).

7. A sampling device for coalfield geological exploration according to claim 3, characterized in that: The bottom of the connecting block (43) is provided with a hexagonal connecting groove (431), and the hexagonal cone (44) is adapted to the hexagonal connecting groove (431).

8. A sampling device for coalfield geological exploration according to claim 1, characterized in that: The edge of the sampling hole (11) is raised outward.

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