Efficient layered undisturbed soil collecting device

Abstract

The invention discloses an efficient layered undisturbed soil collecting device which comprises a drill bit, a connecting rod and a main body part, and the main body part comprises a motor, a mode switching switch, a power switch, a main handle and an auxiliary handle. The drill bit adopts a modular design, besides a hollow sleeve drill bit, a drill bit in which a cutting ring can be placed is additionally arranged, and the drill bit is used for measuring indexes such as soil bulk density and the like and ensuring that a soil sample is accurately and conveniently obtained. The connecting rod is provided with scale marks, and the length can be adjusted according to needs to adapt to different sampling depths. The motor has the functions of forward rotation, reverse rotation and percussion drilling, and a proper operation mode is selected through the mode change-over switch. The auxiliary handle can be adjusted to a position suitable for operation so as to increase stability and safety. By means of the efficient sampling technology, undisturbed soil samples of different depths can be accurately obtained under various soil conditions, and the 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] The present invention relates to an efficient layered undisturbed soil collection device, which belongs to the technical field of soil environment monitoring and sampling, and is applied to the fields of agriculture, environmental monitoring, geological exploration, construction engineering, etc. The undisturbed soil samples of different depths can be accurately obtained through the efficient and lightweight sampling device. Background Art

[0002] In recent years, with the rapid development of my country's social economy and the continuous improvement of ecological environmental protection awareness, soil environmental monitoring has become one of the important areas of environmental science research. Especially in the fields of agriculture, construction and environmental remediation, it is crucial to obtain undisturbed soil samples efficiently and accurately. There are many types of traditional soil sampling devices and methods, including soil drills, ring cutters, geological sampling drills and power sampling drills. Although these methods can meet basic sampling needs, there are many problems in practical applications, such as limited sampling depth, complex operation, easy disturbance of samples, and high labor intensity. Soil drills are widely used in soil sample collection. The operation depends on manual labor and is limited by the sampling depth and geological conditions. It is difficult to obtain complete samples in deeper soil layers. The ring cutter is suitable for shallow soil sampling, but it is inefficient in hard soil and is easy to disturb the soil sample during the sampling process, affecting the representativeness of the sample. The geological sampling drill is used in geological exploration, mineral research and environmental monitoring. It can reach a large depth and is suitable for core sample collection in hard strata, but the equipment is complex, difficult to operate and expensive. The power sampling drill is suitable for shallow soil and sediment sampling. It is compact and easy to carry, but the depth is limited, the stratified sampling accuracy is low, and the efficiency is low under hard soil conditions. Especially under hard soil and complex terrain conditions, the limitations of traditional sampling methods are more prominent, resulting in a time-consuming and labor-intensive sampling process, and it is difficult to ensure the integrity and accuracy of the sample. In view of the shortcomings of the existing sampling equipment in design and function, an efficient and lightweight stratified undisturbed soil collection device is urgently needed 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: The present invention optimizes the shortcomings of traditional soil sampling devices, such as complex operation, limited sampling depth, easy disturbance of samples and high labor intensity. The introduction of multi-mode operation, including forward, reverse and impact drilling functions, improves the adaptability and sampling efficiency of the drill bit under different soil conditions. The scale design on the connecting rod and the hollow sleeve drill bit realizes the precise control of the sampling depth, ensuring the accuracy of stratified sampling and the representativeness of the sample. The hollow sleeve drill bit design reduces the disturbance to the soil and maintains the original state and structure of the soil sample. The simplified operation process reduces the difficulty of use, and efficient sampling can be carried out without professional operators. In addition, the modular design of the present invention allows the fuselage, connecting rod and drill bit to be quickly disassembled and replaced, which is easy to carry and assemble on site, significantly improving the convenience and safety of sampling work. At the same time, drill bits and connecting rods of different sizes and types can be selected and replaced according to different sampling needs, further improving the adaptability and practicality of the device.

[0004] Technical solution: An efficient layered original soil collection device, including a fuselage, a replaceable connecting rod and a replaceable drill bit. The fuselage is equipped with a mode switching switch, and the modes include reverse and impact drill modes; it can provide flexible sampling solutions under different soil conditions. The fuselage includes a motor, one end of the connecting rod is connected to the fuselage, so that the motor drives the connecting rod to move, and the other end is used to connect the drill bit; the connecting rod is provided with a scale, which is convenient for users to accurately control and record the sampling depth as needed to ensure the stratification accuracy of the soil sample. The design of the replaceable drill bit can meet different sampling needs. The drill bit is a hollow sleeve drill bit or a ring drill bit; the hollow sleeve drill bit can reduce the disturbance to the soil and keep the soil in its original state, while the ring drill bit can be placed in a ring cutter for accurate measurement of soil bulk density. At the same time, the device can be quickly disassembled and replaced through modular design, which is convenient for on-site assembly and carrying. The simplified operation process reduces the operating complexity of the equipment, and even non-professional operators can 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 soil and complex terrain conditions. This technical solution provides a reliable and convenient solution for soil science research and environmental monitoring.

[0005] The modes also include a forward mode; the mode switch is used to select different working modes. In the forward mode, the motor drives the drill bit to rotate clockwise; in the reverse mode, the motor drives the drill bit to rotate counterclockwise, which is used to withdraw the drill bit or loosen the jam; in the impact drill mode, the body realizes the impact function through the transmission gear eccentric wheel and the driving piston combined with the transmission gear, and the motor drives the drill bit into the soil. The body is a prior art, such as the German BOSCH drill.

[0006] The graduated connecting rod is connected to the fuselage through a clamping rod, and the graduated connecting rod can be replaced between 1 meter and 2 meters according to sampling requirements, and the connecting rod has a scale mark, and the sampling depth can be adjusted or recorded as needed to ensure accurate sampling. The connecting rod material includes but is not limited to high-strength aluminum alloy, carbon fiber composite material, stainless steel and other materials.

[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, including but not limited to, two ring cutters. The hollow sleeve drill bit is a hollow structure, which reduces the disturbance of the soil sample and keeps the soil sample in its original state. The top of the hollow sleeve drill bit is a threaded joint for connecting with the connecting rod, and one side of the surface of the hollow sleeve drill bit is provided with an opening for taking out the soil sample, and the bottom is provided with a knife edge to facilitate the drill bit to drive down into the soil. The threaded joint at the top of the ring cutter drill bit is used to connect with the connecting rod, and the lower part of the threaded joint is a threaded structure connected to the drill bit body. After rotating and opening, the ring cutter can be placed in the drill bit body. The head and tail of the ring cutter are respectively equipped with rubber rings for buffering and shock absorption to ensure that the ring cutter is stable inside the drill bit. The bottom of the ring cutter drill bit and the lower end of the ring cutter are provided with a knife edge for accurately cutting the soil sample. The materials of the hollow sleeve drill bit and the ring cutter drill bit include, but are not limited to, high-strength aluminum alloy, carbon fiber composite material, stainless steel and other materials.

[0008] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: (1) The present invention provides an efficient layered soil sampling tool that can adapt to various soil conditions, including hard, loose and complex terrains, and significantly improves sampling efficiency.

[0009] (2) It adopts a modular design. The body, connecting rod and drill bit can be freely combined as needed. The length of the connecting rod can be adjusted between 1 meter and 2 meters. The type and size of the drill bit can be replaced as needed to meet different sampling requirements, thereby increasing the flexibility and practicality of the equipment.

[0010] (3) The equipment is easy to operate. The scales on the connecting rod and the hollow sleeve drill clearly indicate the sampling depth, allowing the operator to accurately control the sampling depth, reduce sample disturbance, and improve the representativeness and accuracy of the sample.

[0011] (4) The combination of the three functions of forward rotation, reverse rotation and impact drilling enables the present invention to efficiently collect samples under different soil conditions: the forward rotation function ensures that the drill bit can drill into the soil smoothly, the reverse rotation function ensures that the drill bit can be pulled out smoothly after sampling is completed, reducing jamming and operation complexity, and the impact drilling function greatly improves the sampling efficiency in hard soil, thereby improving the safety and reliability of the overall operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of a layered original soil collection device according to an embodiment of the present invention; Figure 2 is a schematic diagram of the structural details of the connecting rod part in an embodiment of the present invention; Figure 3 Schematic diagram of the structural details of the hollow sleeve drill bit part when the embodiment of the present invention is used for collecting layered original soil; Figure 4 It is a schematic diagram of the structural details of the ring cutter drill bit when the embodiment of the present invention is used for ring cutter sample collection.

[0013] In the figure: 1. replaceable drill bit; 2. threaded joint; 3. connecting rod with scale; 4. body; 5. heat dissipation hole; 6. auxiliary handle; 7 hammer body; 8. driving piston; 9. mode switching 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. scale; 22. hollow sleeve drill bit; 23. opening; 24. knife edge; 25. ring drill bit; 26. threaded interface; 27. ring knife; 28. rubber ring. DETAILED DESCRIPTION

[0014] The present invention is further explained below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application. Example

[0015] like Figure 1 , Figure 2 and Figure 3 As shown, a layered original soil collection device of this embodiment mainly includes a connecting rod with a scale, a body 4 and a hollow sleeve drill bit 22. The connecting rod with a scale 3 includes a chuck connecting rod 20, a threaded joint 2 and a scale 21. The bottom of the hollow sleeve drill bit 22 has a cutting edge 24, and the hollow sleeve drill bit 22 includes a threaded joint 2, a scale 21 and an opening 23.

[0016] According to the sampling needs, a hollow sleeve drill bit and a scaled connecting rod of appropriate size are selected. The hollow sleeve drill bit 22 is connected to the threaded joint 2 of the scaled connecting rod through a threaded joint 2, and the scaled connecting rod is connected to the fuselage 4 through a chuck connecting rod 20.

[0017] After the assembly is completed, the scales 21 on the connecting rod 3 and the hollow sleeve drill bit 22 are used to mark according to the soil collection depth and stratification requirements to ensure that the drill bit reaches each predetermined depth.

[0018] Connect the body 4 to the power supply via the power cord 19, adjust the mode switch 9 to the impact drill mode, hold the main handle 11 and the auxiliary handle 6 tightly, turn on the speed switch 10 to drive the hollow sleeve drill bit 22 to drill downward into the soil.

[0019] During the sampling process of each layer, when the drill bit reaches the predetermined depth, the speed switch 10 is turned off, the mode switching switch 9 is adjusted to the reverse mode, and the drill bit is slowly pulled out of the soil.

[0020] After the soil sample is collected, the soil sample is taken out through the opening 23 on the hollow sleeve drill bit 22; Repeat the above steps to sample the soil at different depths in layers, and further store the soil at different depths in marked ziplock bags. Example

[0021] like Figure 1 , Figure 2 and Figure 4 As shown, a ring cutter sample collection device of this embodiment mainly includes a connecting rod with a scale, a body 4 and a ring cutter drill bit 26. The connecting rod with a scale 3 includes a chuck connecting rod 20, a threaded joint 2 and a scale 21. The bottom of the ring cutter drill bit 25 has a cutting edge 24, and the ring cutter drill bit includes a threaded interface 26, a ring cutter 27 and a rubber ring 28.

[0022] Select a suitable ring cutter and its corresponding drill bit according to the sampling needs, and select a rubber ring 28 of corresponding size according to the size of the selected ring cutter to cover the top and bottom of the ring cutter 27. After covering, rotate the top of the ring cutter drill bit through the threaded interface 26 to open the top of the ring cutter drill bit and push the ring cutter 27 into the ring cutter drill bit 25. After the ring cutter 27 is placed, reconnect the top with the drill bit body through the threaded interface 26.

[0023] The ring cutter drill bit 25 is connected to the threaded joint 2 with the graduated connecting rod through the threaded joint 2, and the graduated connecting rod is connected to the machine body 4 through the chuck connecting rod 20; After assembly is completed, the body 4 is connected to the power supply through the power cord 19, the mode switching switch 9 is adjusted to the impact drill mode, the main handle 11 and the auxiliary handle 6 are tightly held, the speed switch 10 is turned on to drive the ring cutter drill bit 25 to drill downward into the soil, and the speed switch 10 is turned off after the top of the drill bit is flush with the soil surface, and the mode switching switch 9 is adjusted to the reverse mode, and the drill bit is slowly pulled out of the soil.

[0024] After the ring cutter sample is taken out, the ring cutter 27 is taken out by rotating the threaded interface 26 to open it and obtain the ring cutter sample.

Claims

1. An efficient layered original soil collection device, characterized in that: It includes a body, a replaceable connecting rod and a replaceable drill bit. The body is equipped with a mode switching switch, and the modes include reverse and impact drilling modes. The body includes a motor. One end of the connecting rod is connected to the body so that the motor drives the connecting rod to move, and 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 efficient layered undisturbed soil collection device according to claim 1, characterized in that: The modes also include a forward mode; the mode switching switch is used to select different working modes; in the forward mode, the motor drives the drill bit to rotate clockwise; in the reverse mode, the motor drives the drill bit to rotate counterclockwise, which is used to withdraw the drill bit or loosen the jam; in the impact drill mode, the body realizes the impact function through the transmission gear eccentric wheel and the driving piston combined with the transmission gear, and the motor drives the drill bit into the soil.

3. The efficient layered undisturbed soil collection device according to claim 1, characterized in that: The connecting rod is connected to the fuselage through a clamping rod, and the length of the connecting rod can be changed according to sampling requirements.

4. The efficient layered undisturbed soil collection device according to claim 1, characterized in that: The drill bit can be replaced with different types of drill bits according to actual needs, including hollow sleeve drill bits of different sizes and a cutter ring drill bit that can accommodate two or more cutters rings.

5. The efficient layered undisturbed soil collection device according to claim 4, characterized in that: The hollow sleeve drill bit is a hollow structure, and a long strip opening is arranged on the side of the sleeve of the hollow sleeve drill bit, and the opening is used for taking out soil samples.

6. The efficient layered undisturbed soil collection device according to claim 4, characterized in that: The top of the hollow sleeve drill bit is a threaded joint for connecting with the threaded joint at the end of the connecting rod, and the bottom is provided with a cutting edge for the drill bit to be driven downward into the soil.

7. The efficient layered undisturbed soil collection device according to claim 4, characterized in that: The threaded joint at the top of the ring cutter drill bit is used to connect with the connecting rod, and the lower part of the threaded joint is a threaded structure connected to the drill bit body. After rotating it open, the ring cutter can be placed in the drill bit body; the head and tail of the ring cutter are respectively equipped with rubber rings; the bottom of the ring cutter drill bit and the lower end of the ring cutter are both provided with cutting edges for accurately cutting soil samples.

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