A soil sampling device for different soil layer depths

Abstract

The utility model relates to soil sampling technology field more specifically is a kind of soil sampling device of different soil layer depth, including the operating handle of two sides welding grip lever, and the horizontal plate of operating handle middle part is fixed with seat bearing, and the vertical plate of operating handle rear side is fixed with driving element, and the output end of driving element is connected with rotary handle, and rotary handle is inserted in seat bearing with interference, and the lower end of rotary handle is connected with sampling assembly, and the lower end of sampling assembly is connected with drill bit;It further includes the extension piece of detachable connection between sampling assembly and rotary handle. The technical problem to be solved is adjustable sampling depth, adapt to the sampling of different soil layer, satisfy the demand of soil stratification research.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, and more specifically to a soil sampling device at different soil depths. Background Technology

[0002] Traditional soil sampling methods suffer from problems such as limited sampling depth, cumbersome operation, low efficiency, and high manual labor intensity. Furthermore, the sampling process can easily lead to the mixing of soils from different soil layers, affecting the integrity and validity of the sample.

[0003] Secondly, in existing technologies, soil sampling is mostly carried out manually using simple handheld drills or traditional drilling rigs. Traditional sampling devices have a simple structure, usually a single drill bit design, making it difficult to adjust the sampling depth and adapt to the sampling needs of different soil types, such as clay, sand, and weathered rock layers. For example, traditional auger drills are prone to clogging of the sampling tube during drilling due to changes in soil hardness, or mixing of samples from different soil layers due to inaccurate depth control. In addition, manual operation is labor-intensive and has low sampling efficiency, which cannot meet the needs of large-scale soil surveys or environmental monitoring.

[0004] Furthermore, existing technologies also have the following drawbacks: 1. Limited sampling depth, unable to accurately sample different depths such as topsoil, subsoil, and soil layers. 2. Cumbersome operation, high manual labor intensity, and low efficiency; for example, traditional handheld drills require repeated insertion and removal, which is time-consuming and labor-intensive. 3. Poor sample integrity; different soil layers are easily mixed, leading to inaccurate test data. 4. Poor adaptability to soil types; sampling results vary greatly when facing soils with different hardness and moisture levels. 5. Insufficient equipment versatility, making it difficult to meet the needs of various scenarios such as agricultural research and environmental monitoring.

[0005] While advanced equipment such as direct-push drilling rigs exists abroad, their high cost and complex structure make them unsuitable for flexible use in small-scale farmland or research projects. Existing portable soil samplers in China still lack depth adjustment and adaptability, making it difficult to accurately obtain undisturbed soil samples from different soil layers. Utility Model Content

[0006] This invention provides a soil sampling device with different soil depths. The technical problem to be solved is that the sampling depth can be adjusted to adapt to sampling of different soil layers and meet the needs of soil stratification research.

[0007] A soil sampling device for different soil depths includes an operating handle with grips welded to both sides, a bearing with a seat fixed to a horizontal plate in the middle of the operating handle, a drive component fixed to a vertical plate on the rear side of the operating handle, a rotary connector connected to the output end of the drive component, the rotary connector being interference-fitted into the bearing with a seat, a sampling component connected to the lower end of the rotary connector, and a drill bit connected to the lower end of the sampling component; it also includes an extension component detachably connected between the sampling component and the rotary connector.

[0008] The extension is a connecting component whose upper and lower ends are detachably connected to the rotary connector and the sampling component, respectively.

[0009] The sampling assembly includes a sampling tube connector I, a sampling tube, and a sampling tube connector II, which are threaded together from top to bottom. The upper end of the sampling tube connector I and the lower end of the sampling tube connector II are threadedly connected to the connecting assembly and the drill bit, respectively.

[0010] The sampling tube is formed by two identical half-tubes that are interlocked.

[0011] The beneficial effects of this utility model are as follows:

[0012] This invention provides a soil sampling device with adjustable sampling depth, adaptability to different soil types, and convenient operation, enabling accurate and efficient sampling of soil at different soil depths, ensuring the integrity and validity of samples, reducing manual labor intensity, and improving the efficiency of soil research and monitoring. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0014] Figure 1 This is a schematic diagram of a soil sampling device at different soil depths.

[0015] Figure 2 A schematic diagram of a sampling device equipped with a connecting component;

[0016] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure;

[0017] Figure 4 A schematic diagram of a sampling device equipped with two connecting components;

[0018] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure;

[0019] Figure 6 This is a structural diagram of the connecting components;

[0020] Figure 7 This is a schematic diagram showing the disassembled structure of the sampling components and the drill bit;

[0021] Figure 8 This is a schematic diagram of the structure of two half-tubes;

[0022] Figure 9 This is a schematic diagram of the drill bit structure.

[0023] In the figure: operating handle 101; drive component 102; rotary connector 103; pin 104; bearing with seat 105; sampling tube connector I 201; sampling tube 202; half tube body 212; sampling tube connector II 203; drill bit 204; saw teeth 205; spiral blade 206; connecting assembly 207. Detailed Implementation

[0024] See Figures 1 to 3 Figures 6 and 7 show schematic diagrams of an embodiment of precise stratified sampling at different soil depths according to the present invention.

[0025] A soil sampling device for different soil depths includes an operating handle 101 with grips welded to both sides. A bearing 105 with a seat is fixed to a horizontal plate in the middle of the operating handle 101. A driving component 102 is fixed to a vertical plate on the rear side of the operating handle 101. The output end of the driving component 102 is connected to a rotary connector 103. The output shaft of the driving component 102 and the rotary connector 103 are fixedly connected by an interference fit with a pin 104. The rotary connector 103 is interference fitted into the bearing 105 to ensure the rotational accuracy and stability of the rotary connector 103. A sampling component is connected to the lower end of the rotary connector 103, and a drill bit 204 is connected to the lower end of the sampling component.

[0026] Hold the handles on both sides and start the drive unit 102. The drive unit 102 drives the extension and sampling component to rotate synchronously through the rotating connector 103. The sampling component drives the drill bit 204 to rotate and the drill bit 204 extends into the soil. When the set depth is reached, stop the drive unit 102, take out the drill bit 204, and carefully take out the soil sample from the sampling component to complete the sampling.

[0027] It also includes a detachable extension connecting the sampling assembly and the rotary connector 103, such as Figure 2 and 3 As shown; the extension is a connecting assembly 207 whose upper and lower ends are detachably connected to the rotating handle 103 and the sampling assembly, respectively. Figure 6 As shown.

[0028] The extension component extends the depth to which the sampling assembly can reach below the ground, thereby enabling precise stratified sampling of different soil layers, such as topsoil, subsoil, and subsoil, avoiding soil layer mixing and ensuring sample validity.

[0029] The connecting component 207 is designed to be detachable for easy carrying and assembly, thus improving the versatility of the device.

[0030] The drive component 102 of this invention uses a four-stroke gasoline engine. Driven by a four-stroke gasoline engine, sampling efficiency is significantly improved compared to manual sampling, reducing the physical exertion of operators. It boasts strong and stable power output, adaptability to complex soil environments, and strong continuous operation capability. It also offers good fuel economy and high thermal efficiency. The structure is mature and durable, with a complete lubrication system, convenient maintenance, low emissions, and high compatibility to various power requirements and environments.

[0031] See Figure 7 and 8 The diagram shows an embodiment of the present invention that facilitates the acquisition of soil samples.

[0032] The sampling assembly includes sampling tube connector I 201, sampling tube 202 and sampling tube connector II 203, which are threaded together from top to bottom. The upper end of sampling tube connector I 201 and the lower end of sampling tube connector II 203 are threadedly connected to the connecting assembly 207 and the drill bit 204, respectively.

[0033] The sampling tube 202 is formed by two identical half-tubes 212 that are interlocked.

[0034] When the sampling is completed and the soil sample needs to be removed, after unscrewing the sampling tube 202 to separate it from the sampling tube connector I 201, unscrew the sampling tube connector II 203 to separate it from the sampling tube 202. The two half-tubes 212 will then split into two, and the soil sample in the two tubes 212 will be fully exposed, making it easy to obtain the soil sample.

[0035] The threaded connection between sampling tube connector I 201, sampling tube 202, and sampling tube connector II 203 is not only stable and reliable, but also facilitates disassembly and assembly. Applying an appropriate amount of lubricant to the threaded portion can reduce friction and improve the smoothness of the connection.

[0036] See Figure 4 and 5 A schematic diagram of an embodiment of increasing sampling depth according to the present invention is shown;

[0037] Multiple connecting components 207 are provided; when sampling deeper soil layers, multiple connecting components 207 can be vertically threaded together end to end. The uppermost connecting component 207 is threaded to the rotary connector 103, and the lowermost connecting component 207 is threaded to the sampling tube connector I 201, thereby further increasing the sampling depth. The superposition of multiple connecting components 207 further enables precise stratified sampling at different soil depths, avoids soil layer mixing, and ensures sample validity.

[0038] The threaded connection between multiple connecting components 207 is not only stable and reliable, but also convenient for disassembly and assembly. Applying an appropriate amount of grease to the threaded parts can reduce friction and improve the smoothness of the connection.

[0039] For sampling at different depths, different numbers of connecting components 207 can be stacked. Furthermore, the segmented structure of multiple connecting components 207 further facilitates the carrying and assembly of the device, improving its versatility.

[0040] See Figure 9 A schematic diagram of an embodiment of reducing drilling resistance according to the present invention is shown;

[0041] The drill bit 204 can be configured as a tapered structure, with the cross-sectional radius of the drill bit 204 decreasing from one end near the sampling tube connector II 203 to the end away from the sampling tube connector II 203. The tapered structure of the drill bit 204 facilitates the smooth introduction of soil into the sampling tube 202 during drilling, while reducing drilling resistance. The drill bit is made of wear-resistant alloy steel, and its surface is strengthened by heat treatment to improve wear resistance and corrosion resistance, making it adaptable to different soil environments.

[0042] The bottom surface of the drill bit 204 is formed with multiple serrations 205. The serration design can effectively cut the soil, enhance the penetration ability of the drill bit, and make it easier for the drill bit 204 to enter the soil, thereby improving drilling efficiency.

[0043] A helical blade 206 is fixedly attached to the outer wall of the drill bit 204; the helical blade design helps to reduce resistance during drilling, allowing the drill bit to drill more smoothly, improving drilling efficiency, and can be applied to different soil environments.

Claims

1. A soil sampling device for different soil depths, characterized in that, The device includes an operating handle (101) with grips welded on both sides, a bearing (105) fixedly mounted on a horizontal plate in the middle of the operating handle (101), a drive unit (102) fixedly mounted on a vertical plate on the rear side of the operating handle (101), a rotary connector (103) connected to the output end of the drive unit (102), the rotary connector (103) being interference-fitted into the bearing (105), a sampling assembly connected to the lower end of the rotary connector (103), and a drill bit (204) connected to the lower end of the sampling assembly; it also includes an extension detachably connected between the sampling assembly and the rotary connector (103); The sampling assembly includes a sampling tube connector I (201), a sampling tube (202) and a sampling tube connector II (203) that are threaded together from top to bottom. The upper end of the sampling tube connector I (201) and the lower end of the sampling tube connector II (203) are threadedly connected to the connecting assembly (207) and the drill bit (204) respectively.

2. The soil sampling device for different soil depths according to claim 1, characterized in that, The extension is a connecting component (207) whose upper and lower ends are detachably connected to the rotating handle (103) and the sampling component, respectively.

3. The soil sampling device for different soil depths according to claim 1, characterized in that, The sampling tube (202) is formed by two identical half-tubes (212) that are interlocked.

4. The soil sampling device for different soil depths according to claim 1, characterized in that, The connection components (207) are provided in multiple ways.

5. A soil sampling device for different soil depths according to claim 1, characterized in that, The drill bit (204) can be configured as a tapered structure.

6. A soil sampling device for different soil depths according to claim 5, characterized in that, The bottom surface of the drill bit (204) is formed with multiple serrations (205).

7. A soil sampling device for different soil depths according to claim 6, characterized in that, A helical blade (206) is fixed along the outer wall of the drill bit (204).

8. A soil sampling device for different soil depths according to claim 1, characterized in that, The output shaft of the drive unit (102) is fixedly connected to the rotary connector (103) by an interference fit with a pin (104).

9. A soil sampling device for different soil depths according to claim 1, characterized in that, The drive unit (102) is a four-stroke gasoline engine.

Images