Efficient layered undisturbed soil collecting device

Abstract

The utility model discloses an efficient layered undisturbed soil collecting device which comprises a machine body, a replaceable connecting rod and a replaceable drill bit, the machine body is provided with a mode change-over switch, and modes comprise a reverse rotation mode and a percussion drill mode; the machine body comprises a motor, one end of the connecting rod is connected with the machine body, the motor drives the connecting rod to move, and the other end is used for being connected with a drill bit. Scales are arranged on the connecting rod; the drill bit is a hollow sleeve drill bit or a cutting ring drill bit. Through the efficient sampling technology, undisturbed soil samples with different depths can be accurately obtained under various soil conditions, and the undisturbed soil sampler is simple in overall structure, wide in application range, easy and convenient to operate and suitable for soil sampling work in the fields of agricultural research, environment monitoring, geological exploration, constructional engineering and the like.

Description

Technical Field

[0001] This invention relates to a high-efficiency stratified undisturbed soil sampling device, belonging to the field of soil environmental monitoring and sampling technology. It is applicable to fields such as agriculture, environmental monitoring, geological exploration and construction engineering. Through a high-efficiency and lightweight sampling device, undisturbed soil samples at different depths can be accurately obtained. Background Technology

[0002] In recent years, with the rapid development of my country's social economy and the continuous improvement of ecological and environmental protection awareness, soil environmental monitoring has become one of the important fields of environmental science research. Especially in agriculture, construction, and environmental remediation, obtaining undisturbed soil samples efficiently and accurately is crucial. Traditional soil sampling devices and methods are numerous, including soil drills, ring drills, geological sampling drills, and dynamic sampling drills. While these methods can meet basic sampling requirements, they have many problems in practical applications, such as limited sampling depth, complex operation, easy sample disturbance, and high labor intensity. Soil drills are widely used for soil sampling, but their operation is manual and limited by sampling depth and geological conditions, making it difficult to obtain complete samples from deeper soil layers. Ring drills are suitable for shallow soil sampling, but their efficiency is low in hard soils, and the soil sample is easily disturbed during sampling, affecting its representativeness. Geological sampling drills are used in geological exploration, mineral research, and environmental monitoring, reaching greater depths and suitable for core sampling from hard strata, but the equipment is complex, difficult to operate, and expensive. Powered sampling drills are suitable for shallow soil and sediment sampling, with a compact design and easy portability, but their depth is limited, their stratification sampling accuracy is low, and their efficiency is low under hard soil conditions. Especially in hard soils and complex terrain conditions, the limitations of traditional sampling methods are more pronounced, resulting in time-consuming and labor-intensive sampling processes that make it difficult to ensure the integrity and accuracy of samples. Addressing the shortcomings of existing sampling equipment in design and function, there is an urgent need for an efficient and lightweight stratified undisturbed soil sampling device to improve the quality and efficiency of soil sample collection and provide reliable support for soil science research and environmental monitoring. Summary of the Invention

[0003] Purpose of the Invention: This invention addresses the shortcomings of traditional soil sampling devices, such as complex operation, limited sampling depth, easy sample disturbance, and high labor intensity. It introduces multi-mode operation, including forward rotation, reverse rotation, and impact drilling functions, improving the adaptability of the drill bit to different soil conditions and sampling efficiency. The scale design on the connecting rod and hollow sleeve drill bit enables precise control of sampling depth, ensuring the accuracy of stratified sampling and the representativeness of the samples. The hollow sleeve drill bit design reduces soil disturbance, preserving the original shape and structure of the soil sample. The simplified operation process reduces the difficulty of use, allowing for efficient sampling without specialized personnel. Furthermore, the modular design of this invention allows for quick disassembly and replacement of the body, connecting rod, and drill bit, facilitating portability and on-site assembly, significantly improving the convenience and safety of sampling work. Simultaneously, different sizes and types of drill bits and connecting rods can be selected and replaced according to different sampling needs, further improving the adaptability and practicality of the device.

[0004] Technical Solution: A high-efficiency stratified undisturbed soil sampling device includes a main body, a replaceable connecting rod, and a replaceable drill bit. The main body is equipped with a mode switch, including reverse and impact drilling modes, providing flexible sampling solutions for different soil conditions. The main body includes a motor, with one end of the connecting rod connected to the main body, allowing the motor to drive the connecting rod, and the other end connected to the drill bit. The connecting rod has graduations, allowing users to accurately control and record the sampling depth as needed, ensuring the accuracy of soil stratification. The replaceable drill bit design can meet different sampling needs; the drill bit can be a hollow sleeve drill bit or a ring drill bit. The hollow sleeve drill bit reduces soil disturbance and maintains the soil's original shape, while the ring drill bit can accommodate a ring cutter for accurate measurement of soil bulk density. Simultaneously, the device's modular design allows for quick disassembly and replacement, facilitating on-site assembly and portability. The simplified operation process reduces the complexity of equipment operation, enabling even non-professional operators to efficiently perform soil sampling. The device not only improves sampling efficiency but also effectively reduces operational complexity and labor intensity. It is suitable for various soil environments, especially for efficient and accurate sampling in hard soils and complex terrain conditions. This technical solution provides a reliable and convenient solution for soil science research and environmental monitoring.

[0005] The mode also includes a forward rotation mode; the mode switch is used to select different working modes. In forward rotation mode, the motor drives the drill bit to rotate clockwise; in reverse rotation mode, the motor drives the drill bit to rotate counterclockwise, used to retract the drill bit or release the jamming; in impact drilling mode, the machine body, through the transmission gear eccentric wheel and drive piston, engages with the transmission gear to achieve the impact function, and the motor drives the drill bit into the soil. The machine body is existing technology, such as the German BOSCH drill.

[0006] The graduated connecting rod is connected to the machine body via a clamp connecting rod. The graduated connecting rod can be replaced between 1 meter and 2 meters according to sampling requirements, and it has graduations to adjust or record the sampling depth as needed, ensuring accurate sampling. The connecting rod is made of materials including, but not limited to, high-strength aluminum alloy, carbon fiber composite materials, and stainless steel.

[0007] The drill bit is designed to be modular, and different types of drill bits can be replaced according to actual needs, including hollow sleeve drill bits of different sizes and ring cutter drill bits that can accommodate, but are not limited to, two ring cutters.

[0008] The hollow sleeve drill bit has a hollow structure, which reduces disturbance to the soil sample and maintains its original shape. The top of the hollow sleeve drill bit has a threaded connector for connecting to the connecting rod, and the side of the sleeve of the hollow sleeve drill bit has an elongated opening for removing the soil sample.

[0009] The hollow sleeve drill bit has a threaded connector at the top for connection with the threaded connector at the end of the connecting rod, and a cutting edge at the bottom to facilitate drilling into the soil. The ring cutter drill bit has a threaded connector at the top for connection with the connecting rod, and a threaded structure at the bottom of the connector connects to the drill body. After being rotated open, the ring cutter can be inserted into the drill body. The head and tail of the ring cutter are equipped with rubber rings for cushioning and shock absorption, ensuring stability of the ring cutter inside the drill bit. The bottom of the ring cutter drill bit and the lower end of the ring cutter both have cutting edges for accurately cutting soil samples. The hollow sleeve drill bit and the ring cutter drill bit are made of materials including, but not limited to, high-strength aluminum alloy, carbon fiber composite materials, and stainless steel.

[0010] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages:

[0011] (1) The present invention provides an efficient layered soil sampling tool that can adapt to various soil conditions, including hard, loose and complex terrain, and significantly improves sampling efficiency.

[0012] (2) The modular design allows the body, connecting rod and drill bit to be freely combined as needed. The length of the connecting rod can be adjusted between 1 meter and 2 meters, and the type and size of the drill bit can be changed as needed to adapt to different sampling requirements, increasing the flexibility and practicality of the equipment.

[0013] (3) The equipment is easy to operate. The scale on the connecting rod and hollow sleeve drill bit clearly marks the sampling depth, which enables the operator to accurately control the sampling depth, reduce sample disturbance, and improve the representativeness and accuracy of the sample.

[0014] (4) The combination of forward rotation, reverse rotation and impact drilling functions enables the present invention to sample efficiently under different soil conditions: the forward rotation function ensures that the drill bit can be drilled into the soil smoothly, the reverse rotation function ensures that the drill bit can be pulled out smoothly after sampling, reducing jamming and operational complexity, while the impact drilling function greatly improves the sampling efficiency in hard soil, thereby improving the overall safety and reliability of the operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the layered undisturbed soil collection device according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram showing the structural details of the connecting rod portion in an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram showing the structural details of the hollow sleeve drill bit part used for stratified undisturbed soil sampling in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram showing the structural details of the ring cutter drill bit used for ring cutter sample collection in an embodiment of the present invention.

[0019] In the diagram: 1. Replaceable drill bit; 2. Threaded connector; 3. Graduated connecting rod; 4. Machine body; 5. Heat dissipation hole; 6. Auxiliary handle; 7. Hammer body; 8. Drive piston; 9. Mode switch; 10. Speed ​​switch; 11. Main handle; 12. Eccentric wheel; 13. Transmission gear; 14. Cooling fan; 15. Rotor; 16. Stator; 17. Carbon brush; 18. Commutator; 19. Power cord; 20. Chuck connecting rod; 21. Graduated scale; 22. Hollow sleeve drill bit; 23. Opening; 24. Cutting edge; 25. Ring cutter drill bit; 26. Threaded interface; 27. Ring cutter; 28. Rubber ring. Detailed Implementation

[0020] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims. Example

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, a layered undisturbed soil collection device in this embodiment mainly includes a graduated connecting rod 3, a body 4, and a hollow sleeve drill bit 22. The graduated connecting rod 3 includes a chuck connecting rod 20, a threaded connector 2, and a scale 21. The hollow sleeve drill bit 22 has a cutting edge 24 at the bottom and includes a threaded connector 2, a scale 21, and an opening 23.

[0022] Select a hollow sleeve drill bit and a graduated connecting rod of appropriate size according to the sampling requirements. The hollow sleeve drill bit 22 is connected to the threaded connector 2 at the end of the graduated connecting rod through the threaded connector 2. The graduated connecting rod is connected to the machine body 4 through the chuck connecting rod 20.

[0023] After assembly, markings are made using the connecting rod 3 and the scale 21 on the hollow sleeve drill bit 22 according to the soil sampling depth and stratification requirements, to ensure that the drill bit reaches each predetermined depth.

[0024] Connect the machine body 4 to the power supply via the power cord 19, adjust the mode switch 9 to the impact drill mode, firmly grasp the main handle 11 and the auxiliary handle 6, and turn on the speed switch 10 to drive the hollow sleeve drill bit 22 to drill downwards into the soil.

[0025] During each sampling process, once the drill bit reaches the predetermined depth, turn off the speed switch 10, adjust the mode switch 9 to reverse mode, and slowly pull the drill bit out of the soil.

[0026] After the soil sample is collected, it is taken out through the elongated opening 23 on the hollow sleeve drill bit 22;

[0027] Repeat the above steps to sample soil at different depths, and then store the soil samples from different depths separately in labeled resealable bags. Example

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, a ring cutter sample collection device in this embodiment mainly includes a graduated connecting rod 3, a body 4, and a ring cutter drill bit 26. The graduated connecting rod 3 includes a chuck connecting rod 20, a threaded connector 2, and a scale 21. The ring cutter drill bit 25 has a cutting edge 24 at the bottom and includes a threaded interface 26, a ring cutter 27, and a rubber ring 28.

[0029] Select the appropriate ring cutter and its corresponding drill bit according to the sampling requirements. Select the corresponding size of rubber ring 28 according to the size of the ring cutter and put it on the top and bottom of the ring cutter 27. After putting it on, rotate and open the top of the ring cutter drill bit through the threaded interface 26 to push the ring cutter 27 into the ring cutter drill bit 25. After the ring cutter 27 is placed, reconnect the top to the drill bit body through the threaded interface 26.

[0030] The ring drill bit 25 is connected to the threaded connector 2 with a graduated connecting rod via the threaded connector 2, and the graduated connecting rod is connected to the machine body 4 via the collet connecting rod 20;

[0031] After assembly, connect the machine body 4 to the power supply via the power cord 19, adjust the mode switch 9 to the impact drill mode, firmly grasp the main handle 11 and the auxiliary handle 6, turn on the speed switch 10 to drive the ring cutter bit 25 to drill downwards into the soil, and turn off the speed switch 10 when the top of the drill bit is flush with the soil surface. Adjust the mode switch 9 to the reverse mode and slowly pull the drill bit out of the soil.

[0032] After the ring cutter sample is extracted, the ring cutter 27 is removed by rotating the threaded interface 26 to obtain the ring cutter sample.

Claims

1. A highly efficient stratified undisturbed soil collection device, characterized in that, The device includes a machine body, a replaceable connecting rod, and a replaceable drill bit. The machine body is equipped with a mode switching switch, and the modes include reverse and impact drilling modes. The machine body includes a motor. One end of the connecting rod is connected to the machine body, so that the motor drives the connecting rod to move. The other end is used to connect the drill bit. The connecting rod is provided with a scale. The drill bit is a hollow sleeve drill bit or a ring cutter drill bit.

2. The high-efficiency stratified undisturbed soil collection device according to claim 1, characterized in that, The mode also includes a forward rotation mode; the mode switching switch is used to select different working modes; in the forward rotation mode, the motor drives the drill bit to rotate clockwise; in the reverse rotation mode, the motor drives the drill bit to rotate counterclockwise, which is used to remove the drill bit or release the jamming; in the impact drill mode, the machine body, through the transmission gear eccentric wheel and the drive piston, combined with the transmission gear, realizes the impact function, and the motor drives the drill bit into the soil.

3. The high-efficiency stratified undisturbed soil collection device according to claim 1, characterized in that, The connecting rod is connected to the machine body via a clamp connecting rod, and the length of the connecting rod can be changed according to sampling requirements.

4. The high-efficiency stratified undisturbed soil collection device according to claim 1, characterized in that, The drill bit can be replaced with different types of drill bits as needed, including hollow sleeve drill bits of different sizes and ring cutter drill bits that can accommodate two or more ring cutters.

5. The high-efficiency stratified undisturbed soil collection device according to claim 4, characterized in that, The hollow sleeve drill bit has a hollow structure, and the side of the sleeve of the hollow sleeve drill bit is provided with an elongated opening for taking out soil samples.

6. The high-efficiency stratified undisturbed soil collection device according to claim 4, characterized in that, The hollow sleeve drill bit has a threaded connector at the top for connection with the threaded connector at the end of the connecting rod, and a cutting edge at the bottom to facilitate the drill bit driving downwards into the soil.

7. The high-efficiency stratified undisturbed soil collection device according to claim 4, characterized in that, The threaded connector at the top of the ring cutter bit is used to connect with the connecting rod. The lower part of the threaded connector has a threaded structure that connects to the drill body. After being rotated open, the ring cutter can be inserted into the drill body. The head and tail of the ring cutter are equipped with rubber rings respectively. The bottom of the ring cutter bit and the lower end of the ring cutter are both provided with cutting edges for accurately cutting soil samples.

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