Geological exploration drill bit sampling device

Abstract

The utility model discloses a geological exploration drill bit sampling device which comprises a conveying cylinder, a main shaft and a plurality of auxiliary shafts are rotationally installed at the bottom end of the conveying cylinder, a main drill bit and an auxiliary drill bit are fixedly installed on the main shafts and the auxiliary shafts respectively, and a conveying screw is rotationally installed in the conveying cylinder. When geological exploration sampling is needed, the main drill bit and the auxiliary drill bits below the conveying cylinder are used for drilling holes downwards in the earth surface rock stratum, in the drilling process, under the action of the main shaft and the transmission assembly, the auxiliary shafts can rotate, the drill bits can drill soil at the same time, the drilling efficiency is greatly improved, and the drilling efficiency is improved. The conveying screw rod can upwards convey a rock and soil sample from the rock stratum to the discharging groove through the conveying screw rod in the sampling groove, and finally the rock and soil sample falls into the sampling box, so that the rock stratum is continuously sampled in the drilling process, and the sampling convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, in particular to a geological exploration drill bit sampling device. Background Art

[0002] Geological exploration is an indispensable foundational work in fields such as engineering construction, mineral resource development, and environmental protection. It aims to reveal the composition, structure, properties, and distribution patterns of Earth's surface and shallow rock and soil masses, as well as their interrelationships with human activities, through systematic investigation, observation, and analysis. With advances in science and technology, geological exploration techniques have evolved from traditional surface observation and manual recording to the current stage of integrated application of remote sensing, geophysical exploration, geochemical analysis, drilling sampling and testing, and digital modeling and simulation.

[0003] As a core component of geological exploration, sampling with geological exploration drill bits plays a key role in obtaining geological information about rocks, soil, and other materials deep underground. This technology relies on high-performance drilling equipment and sophisticated drill bit design, aiming to collect complete, undisturbed samples from the target formation through mechanical coring. With technological advancements, modern geological exploration drill bits not only utilize wear-resistant and high-hardness materials, such as tungsten carbide alloy, to ensure effective drilling in complex formations, but also incorporate intelligent control elements, such as sensors that monitor torque, speed, and formation feedback during drilling, allowing for real-time adjustment of drilling parameters to optimize sampling efficiency and quality.

[0004] Patent document CN221594346U discloses a geological sampling device, comprising a sampling tube and a handle, wherein a drill bit is provided on the lower side of the sampling tube, and an adjustment assembly is provided between the drill bit and the sampling tube; the adjustment assembly includes a fixed block fixedly connected to the top of the drill bit, a connecting rod is provided on the upper side of the fixing block, and a mounting assembly is provided between the connecting rod and the fixing block, the upper end of the connecting rod is fixedly connected to a piston plate, the upper side of the piston plate is fixedly connected to an adjustment rod, and the upper end of the adjustment rod is fixedly connected to a pressing plate. The geological sampling device is easy to use, saves time and effort, greatly improves the convenience of sampling, is convenient for staff to use, and is highly practical. It solves the problem that in the use of traditional geological sampling devices, staff are not convenient to quickly remove samples from the sampling tube, which is laborious, extremely wastes staff time, and is inconvenient to use.

[0005] As in the prior art of the above-mentioned patent, in the process of drilling and sampling in geological surveys, the device used is usually equipped with a drill bit located below the sampling tube. Its working principle is to rely on the drill bit to drill downwards, while the sampling tube is located inside the borehole for sampling. However, this design mainly relies on the soil to fall naturally into the sampling tube, which may lead to insufficient sampling in certain rock and soil layers. At the same time, after the sampling is completed, the sampling tube needs to be manually pulled out of the borehole. This process is not only prone to sample falling due to improper operation, but also because the sample is mainly composed of rock and soil, it is particularly laborious to extract it from the underground. Utility Model Content

[0006] The purpose of the utility model is to provide a geological exploration drill sampling device to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a geological exploration drill sampling device, comprising a conveying cylinder, a main shaft and multiple secondary shafts are rotatably installed at the bottom end of the conveying cylinder, and a main drill bit and a secondary drill bit are fixedly installed on the multiple main shafts and multiple secondary shafts respectively. A conveying screw is rotatably installed inside the conveying cylinder, and a discharge trough and multiple sampling troughs are respectively opened on the side walls of the conveying cylinder. The discharge trough is arranged above the conveying cylinder, and the multiple sampling troughs are arranged below the conveying cylinder. A transmission assembly is arranged between the conveying screw, the main shaft and the multiple secondary shafts.

[0008] As a further description of the above technical solution: the transmission assembly includes a transmission box, which is fixedly mounted on the bottom end of the conveying cylinder, the main shaft and multiple secondary shafts all pass through the transmission box and are rotatably connected to the transmission box, and a driving gear and multiple transmission gears are provided inside the transmission box, the driving gear is fixedly mounted on the main shaft, and the multiple transmission gears are fixedly mounted on the secondary shaft, and the driving gear and the multiple transmission gears are meshed with each other.

[0009] As a further description of the above technical solution: a motor is fixedly installed on the top of the conveying cylinder, the output end of the motor is transmission-connected to the conveying screw, and a protective box is provided on the outside of the motor.

[0010] As a further description of the above technical solution: two handles are fixedly installed on the side wall of the conveying cylinder, and a damping rod is connected between the two handles and the side wall of the conveying cylinder.

[0011] As a further description of the above technical solution: a sampling box is fixedly installed on the side wall of the conveying cylinder, and the sampling box is arranged on one side of the discharge chute.

[0012] As a further description of the above technical solution: a plurality of guide plates are fixedly installed on the side wall of the conveying cylinder, and the plurality of guide plates are arranged between a plurality of sampling slots.

[0013] The utility model provides a geological exploration drill sampling device. It has the following beneficial effects: when geological exploration sampling is required, the utility model uses the main drill bit and the auxiliary drill bit below the conveying cylinder to drill downward into the surface rock layer. During the drilling process, under the action of the main shaft and the transmission assembly, multiple auxiliary shafts can be rotated, so that multiple drill bits can drill the soil at the same time, which greatly improves the drilling efficiency. In addition, the conveying screw can convey the rock and soil samples from the rock layer through the conveying screw inside the sampling trough upward to the discharge trough, and finally drop them into the interior of the sampling box, thereby realizing continuous sampling of the rock layer during the drilling process and increasing the convenience of sampling.

[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a geological exploration drill sampling device proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of a sectional three-dimensional structure of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the transmission assembly, main drill bit and auxiliary drill bit of the utility model.

[0020] Legend:

[0021] 1. Conveying cylinder; 2. Handle; 3. Damping rod; 4. Protective box; 5. Motor; 6. Discharge chute; 7. Sampling chute; 8. Guide plate; 9. Transmission box; 10. Main shaft; 11. Driving gear; 12. Sub-shaft; 13. Transmission gear; 14. Main drill bit; 15. Sub-drill bit; 16. Sampling box; 17. Conveying screw. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0023] Reference Figure 1-4A geological exploration drill sampling device includes a conveying cylinder 1, a main shaft 10 and a plurality of secondary shafts 12 are rotatably installed at the bottom end of the conveying cylinder 1, and a main drill bit 14 and a secondary drill bit 15 are fixedly installed on the plurality of main shafts 10 and the plurality of secondary shafts 12. A conveying screw 17 is rotatably installed inside the conveying cylinder 1, and a discharge trough 6 and a plurality of sampling troughs 7 are respectively opened on the side walls of the conveying cylinder 1. The discharge trough 6 is arranged above the conveying cylinder 1, and the plurality of sampling troughs 7 are arranged below the conveying cylinder 1. A transmission group is arranged between the conveying screw 17, the main shaft 10 and the plurality of secondary shafts 12. When it is necessary to take samples for geological survey, the main drill bit 14 and the auxiliary drill bit 15 below the conveying cylinder 1 are used to drill downward into the surface rock layer. During the drilling process, under the action of the main shaft 10 and the transmission assembly, multiple auxiliary shafts 12 can be rotated, and multiple drill bits can be used to drill the soil at the same time, which greatly improves the drilling efficiency. The conveying screw 17 can convey the rock and soil samples from the rock layer through the conveying screw 17 inside the sampling trough 7 to the discharge trough 6, and finally fall into the interior of the sampling box 16, thereby realizing continuous sampling of the rock layer during the drilling process and increasing the convenience of sampling.

[0024] As the preferred technical solution of this embodiment, the transmission assembly includes a transmission box 9, which is fixedly mounted on the bottom end of the conveying cylinder 1. The main shaft 10 and multiple secondary shafts 12 all pass through the transmission box 9 and are rotatably connected to the transmission box 9. A driving gear 11 and multiple transmission gears 13 are provided inside the transmission box 9. The driving gear 11 is fixedly mounted on the main shaft 10, and multiple transmission gears 13 are fixedly mounted on the secondary shaft 12. The driving gear 11 and the multiple transmission gears 13 are engaged with each other; the main shaft 10 and the conveying screw 17 rotate coaxially. During the rotation, under the action of multiple transmission gears 13 and the driving gear 11, the main drill bit 14 and multiple secondary drill bits 15 can be rotated.

[0025] As the preferred technical solution of this embodiment, a motor 5 is fixedly installed on the top of the conveying cylinder 1, the output end of the motor 5 is transmission-connected to the conveying screw 17, and a protective box 4 is provided on the outside of the motor 5; the motor 5 can drive the conveying screw 17 and the main shaft 10 to rotate.

[0026] As the preferred technical solution of this embodiment, two handles 2 are fixedly installed on the side wall of the conveying cylinder 1, and a damping rod 3 is connected between the two handles 2 and the side wall of the conveying cylinder 1; the two ends of the device can be fixedly grasped by the handles 2. When in use, the worker grasps the handles 2 at both ends to prevent the device from tipping over.

[0027] As the preferred technical solution of this embodiment, a sampling box 16 is fixedly installed on the side wall of the conveying cylinder 1, and the sampling box 16 is arranged on one side of the discharge trough 6; the rock and soil samples are transported from the bottom of the conveying screw 17 to the top of the conveying cylinder 1, and finally discharged through the discharge trough 6. The rock and soil samples can fall out of the discharge trough 6 and fall into the sampling box 16, thereby realizing the collection of rock and soil samples.

[0028] As the preferred technical solution of this embodiment, a plurality of guide plates 8 are fixedly installed on the side wall of the conveying cylinder 1, and the plurality of guide plates 8 are arranged between the plurality of sampling slots 7; the guide plates 8 are arranged between the plurality of sampling slots 7. During the drilling operation, the guide plates 8 can guide the rock and soil around the sampling slots 7 into the interior of the sampling slots 7, so that the rock and soil can smoothly enter the interior of the sampling slots 7, making it more convenient to collect rock and soil samples.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A geological exploration drill sampling device, comprising a conveying tube (1), characterized in that: A main shaft (10) and a plurality of auxiliary shafts (12) are rotatably mounted on the bottom end of the conveying cylinder (1); a main drill bit (14) and an auxiliary drill bit (15) are fixedly mounted on the plurality of main shafts (10) and the plurality of auxiliary shafts (12); a conveying screw (17) is rotatably mounted inside the conveying cylinder (1); a discharge trough (6) and a plurality of sampling troughs (7) are respectively opened on the side wall of the conveying cylinder (1); the discharge trough (6) is arranged above the conveying cylinder (1); and the plurality of sampling troughs (7) are arranged below the conveying cylinder (1); a transmission assembly is arranged between the conveying screw (17), the main shaft (10) and the plurality of auxiliary shafts (12).

2. A geological exploration drill sampling device according to claim 1, characterized in that: The transmission assembly comprises a transmission box (9), the transmission box (9) is fixedly mounted on the bottom end of the conveying cylinder (1), the main shaft (10) and the plurality of secondary shafts (12) all pass through the transmission box (9) and are rotatably connected to the transmission box (9), a driving gear (11) and a plurality of transmission gears (13) are provided inside the transmission box (9), the driving gear (11) is fixedly mounted on the main shaft (10), the plurality of transmission gears (13) are fixedly mounted on the secondary shaft (12), and the driving gear (11) and the plurality of transmission gears (13) are meshed with each other.

3. A geological exploration drill sampling device according to claim 1, characterized in that: A motor (5) is fixedly mounted on the top end of the conveying cylinder (1), the output end of the motor (5) is drivingly connected to a conveying screw (17), and a protective box (4) is provided on the outside of the motor (5).

4. A geological exploration drill sampling device according to claim 1, characterized in that: Two handles (2) are fixedly mounted on the side wall of the conveying cylinder (1), and a damping rod (3) is connected between the two handles (2) and the side wall of the conveying cylinder (1).

5. A geological exploration drill sampling device according to claim 1, characterized in that: A sampling box (16) is fixedly mounted on the side wall of the conveying cylinder (1), and the sampling box (16) is arranged on one side of the discharge trough (6).

6. A geological exploration drill sampling device according to claim 1, characterized in that: A plurality of guide plates (8) are fixedly mounted on the side wall of the conveying cylinder (1), and the plurality of guide plates (8) are arranged between the plurality of sampling slots (7).

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