A soil testing and sampling device

Abstract

This utility model provides a soil testing and sampling device, relating to the field of soil sampling technology. It includes an adjustment mechanism comprising a mounting side plate, a directional motor mounted on the mounting side plate, and an adjusting worm gear at one end of the directional motor. In this utility model, by removing the drilling device from the soil, the fine-tuning motor is activated to rotate the outer ring toothed plate, thereby determining the sampling angle. Then, the operator can control the gripping motor to rotate the adjusting screw cone, which in turn drives the opening and closing lifting plate to adjust its height. This allows the gripping sleeve to close and apply inward pressure to break up the soil. Afterward, the operator can control the gripping motor to activate the opening and closing lifting plate to support it outward, thus breaking the soil. Then, the gripping motor reverses direction to drive the opening and closing lifting plate upward on the adjusting screw cone, allowing for soil sampling.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, and in particular to a soil testing and sampling device. Background Technology

[0002] Soil sampling is a fundamental technical step in agricultural environmental monitoring, pollution assessment, and geological exploration. Its core lies in obtaining spatially representative, structurally intact, and cross-contaminated soil samples. Current sampling devices mostly employ manual impact soil samplers, auger drills, or hydraulically driven piercing mechanisms, using methods such as drill bit cutting and tube insertion to achieve layered soil collection. With the development of precision agriculture and smart environmental protection, sampling operations are increasingly extending to hard soil layers, gravel-mixed areas, and sloping terrain. This places higher demands on the sampling device's angle self-adjustment capabilities, deep soil breaking efficiency, and sample shape preservation. Especially when involving refined testing such as organic matter content detection and microbial activity analysis, it is necessary to minimize soil structural disturbance and volatile component release during sampling.

[0003] Existing sampling devices suffer from drawbacks. Traditional angle adjustment mechanisms rely on manual visual calibration and mechanical limit locking, making it difficult to achieve precise vertical alignment of the sampling axis with the soil profile on slopes or in complex terrain. This results in mixed sample layers. Rigid drill bits or casings are prone to deflection and slippage in hard soil. The single impact-breaking mode can easily cause sample compression deformation, while continuous rotary cutting of the auger exacerbates the destruction of soil aggregate structure, affecting the accuracy of porosity and moisture content detection. Hydraulic or pneumatic drive devices suffer from power attenuation during deep sampling. Piston-type closing mechanisms are prone to sealing failure due to soil adhesion, and the return spring is prone to plastic deformation under frequent impacts. Existing gripping sleeves mostly use a fixed opening and closing range design, which cannot dynamically adjust the clamping force according to soil density. Gravel embedding can easily cause the mechanism to jam or even break. Therefore, we provide a soil testing and sampling device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a soil testing and sampling device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a soil testing and sampling device, comprising: an adjustment mechanism, the adjustment mechanism comprising a mounting side plate, a directional motor disposed on the mounting side plate, an adjustment worm gear disposed at one end of the directional motor, and a power mechanism disposed on one side of the adjustment worm gear;

[0006] The power mechanism includes a semi-arc gear disk, a mounting frame is provided on one side of the semi-arc gear disk, a gripping motor is provided in the mounting frame, an adjusting screw cone is provided at one end of the gripping motor, an isolation plate frame is provided on the outer surface of the adjusting screw cone, and a fine-tuning motor is provided on one side of the mounting frame.

[0007] In a preferred embodiment, the outer surface of the adjusting screw cone is provided with a gripping mechanism, the gripping mechanism includes an outer ring toothed plate, the outer surface of the outer ring toothed plate is provided with a connecting bracket, one end of the connecting bracket is provided with a gripping sleeve, and one end of the gripping sleeve is provided with an opening and closing lifting plate.

[0008] In a preferred embodiment, one end of the fine-tuning motor meshes with the teeth of the outer ring toothed plate. The outer surface of the outer ring toothed plate is nested between the mounting frame and the isolation plate frame. One end of the connecting bracket is limited to the outer surface of the outer ring toothed plate for rotation angle adjustment. The end of the connecting bracket away from the outer ring toothed plate is connected to one end of the gripping sleeve. The end of the gripping sleeve away from the connecting bracket is connected to the opening and closing lifting plate.

[0009] In a preferred embodiment, one end of the directional motor is mounted on the mounting side plate, and one end of the adjusting worm passes through the mounting side plate and connects to one end of the directional motor. The outer surface of the adjusting worm meshes with the outer surface of the semi-arc gear disk.

[0010] In a preferred embodiment, one side of the mounting frame is cast onto one side of the semi-arc gear disk, the outer surface of the gripping motor is nested in the mounting frame, and one end of the adjusting screw cone is connected to one end of the gripping motor.

[0011] In a preferred embodiment, one side of the fine-tuning motor is cast onto the side of the mounting frame away from the semi-arc gear disk, and the inner surface of the isolation plate frame is nested on the outer surface of the adjusting screw cone.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This invention removes the drilling device from the soil, then activates a fine-tuning motor to rotate the outer ring toothed plate to determine the sampling angle. The operator then controls the gripping motor to rotate the adjusting screw cone, which in turn drives the opening and closing lifting plate to adjust its height. This allows the gripping sleeve to close and apply inward pressure to break up the soil. The operator can then activate the gripping motor to support the opening and closing lifting plate outward, thus breaking the soil. Finally, the gripping motor reverses direction to drive the opening and closing lifting plate upward on the adjusting screw cone, allowing for soil sampling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a soil testing and sampling device provided by this utility model.

[0015] Figure 2 This is an exploded view of the structure of a soil testing and sampling device provided by this utility model.

[0016] Figure 3 A schematic diagram of the adjustment mechanism and power mechanism of a soil testing and sampling device provided by this utility model.

[0017] Figure 4 A schematic diagram of the gripping mechanism of a soil testing and sampling device provided by this utility model.

[0018] Legend:

[0019] 1. Adjustment mechanism; 11. Mounting side plate; 12. Directional adjustment motor; 13. Adjustment worm gear;

[0020] 2. Power mechanism; 21. Semi-arc gear disk; 22. Mounting frame; 23. Gripping motor; 24. Isolation plate frame; 25. Fine-tuning motor; 26. Adjusting screw cone;

[0021] 3. Gripping mechanism; 31. Outer ring toothed plate; 32. Connecting bracket; 33. Gripping cover; 34. Opening and closing lifting plate. Detailed Implementation

[0022] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0023] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0024] Example 1

[0025] like Figure 1-3 As shown, this utility model provides a technical solution: a soil testing and sampling device, including: an adjustment mechanism 1, the adjustment mechanism 1 including a mounting side plate 11, a directional motor 12 provided on the mounting side plate 11, an adjustment worm 13 provided at one end of the adjustment motor 12, and a power mechanism 2 provided on one side of the adjustment worm 13;

[0026] The power mechanism 2 includes a semi-arc gear disk 21, a mounting frame 22 is provided on one side of the semi-arc gear disk 21, a gripping motor 23 is provided in the mounting frame 22, an adjusting screw cone 26 is provided at one end of the gripping motor 23, an isolation plate frame 24 is provided on the outer surface of the adjusting screw cone 26, and a fine-tuning motor 25 is provided on one side of the mounting frame 22.

[0027] One end of the directional motor 12 is mounted on the mounting side plate 11. One end of the adjusting worm 13 passes through the mounting side plate 11 and is connected to one end of the directional motor 12. The outer surface of the adjusting worm 13 meshes with the outer surface of the semi-arc gear disk 21. One side of the mounting frame 22 is fused to one side of the semi-arc gear disk 21. The outer surface of the gripping motor 23 is nested in the mounting frame 22. One end of the adjusting screw cone 26 is connected to one end of the gripping motor 23. One side of the fine-tuning motor 25 is fused to the side of the mounting frame 22 away from the semi-arc gear disk 21. The inner surface of the isolation plate frame 24 is nested in the outer surface of the adjusting screw cone 26.

[0028] In this embodiment, when the staff uses this sampling device to sample soil, they can start the adjusting motor 12 to make the adjusting worm 13 rotate, thereby adjusting the direction of the semi-arc gear disk 21 meshing on the outer surface of the adjusting worm 13. This allows the mounting frame 22 to move along with the gripping motor 23 and adjust the angle of the semi-arc gear disk 21. Then, the staff can start the gripping motor 23 to make it drive the adjusting screw cone 26 to rotate and drill holes in the ground to sample the soil.

[0029] Example 2

[0030] like Figure 1-4 As shown, a gripping mechanism 3 is provided on the outer surface of the adjusting screw cone 26. The gripping mechanism 3 includes an outer ring toothed plate 31. A connecting bracket 32 ​​is provided on the outer surface of the outer ring toothed plate 31. A gripping sleeve 33 is provided at one end of the connecting bracket 32. An opening and closing lifting plate 34 is provided at one end of the gripping sleeve 33. One end of the fine-tuning motor 25 meshes with the teeth of the outer ring toothed plate 31. The outer surface of the outer ring toothed plate 31 is nested between the mounting frame 22 and the isolation plate frame 24. One end of the connecting bracket 32 ​​is limited to the outer surface of the outer ring toothed plate 31 for rotation angle adjustment. The end of the connecting bracket 32 ​​away from the outer ring toothed plate 31 is connected to one end of the gripping sleeve 33. The end of the gripping sleeve 33 away from the connecting bracket 32 ​​is connected to the opening and closing lifting plate 34.

[0031] In this embodiment, after drilling is completed, the operator can remove the drilling device from the soil and then start the fine-tuning motor 25 to rotate the outer ring tooth plate 31 to determine the sampling angle. Afterwards, the operator can control the gripping motor 23 to rotate the adjusting screw cone 26, which will drive the opening and closing lifting plate 34 to adjust its height. This will allow the gripping sleeve 33 to close and apply inward pressure to break through the soil. Then, the operator can control the gripping motor 23 to start the opening and closing lifting plate 34 to support it outward, thus breaking through the soil. Then, the gripping motor 23 will drive the opening and closing lifting plate 34 to move upward on the adjusting screw cone 26 in the opposite direction, thus allowing it to grip and sample the soil.

[0032] Working principle:

[0033] like Figure 1-4 As shown, when using this sampling device for soil sampling, the operator can first start the directional motor 12 to drive the connected adjusting worm gear 13 to rotate. The rotation of the adjusting worm gear 13 will drive the externally meshed semi-arc gear disk 21 to rotate, thereby achieving precise adjustment of the overall angle of the sampling device. Through this angle adjustment function, the mounting frame 22 installed on the device, together with the gripping motor 23, can change direction to accurately align with the target sampling area.

[0034] After directional adjustment, the operator can continue to control the gripping motor 23 to start, causing it to rotate the adjusting screw cone 26 installed below it. During the rotation of the adjusting screw cone 26, its front end will drill a hole in the soil surface to collect samples, completing the initial drilling and sampling action. After the drilling is completed, the operator can gently lift the entire drilling structure from the soil to provide space for subsequent sampling steps.

[0035] Next, the operator can activate the fine-tuning motor 25, which drives the outer ring tooth plate 31 to rotate, thereby further fine-tuning the angle of the sampling device to achieve a more precise alignment and ensure the accuracy of the sampling point. After confirming the sampling angle, the gripping motor 23 is activated again, causing the adjusting screw cone 26 to continue rotating. At this time, the opening and closing lifting plate 34 connected to it is driven to move up and down vertically.

[0036] When the opening and closing lifting plate 34 moves downward, it drives the gripping sleeve 33 below it to descend and close simultaneously, applying pressure to the ground soil in the closed state. Through this downward pressing action, the gripping sleeve 33 can break through the soil surface, creating a channel for subsequent sampling. Subsequently, by restarting the gripping motor 23, the opening and closing lifting plate 34 is driven to expand outward instead of downward, and the device realizes the "soil breaking" process, that is, the gripping sleeve 33 expands and opens, creating sufficient space for gripping the soil.

[0037] Finally, the gripping motor 23 is reverse-driven, causing the opening and closing lifting plate 34 to move axially upward under the guidance of the adjusting screw cone 26. As the opening and closing lifting plate 34 rises, the gripping sleeve 33 in its closed state carries the held soil sample away from its original position, completing the soil sample collection process. The entire operation process is highly automated and precise, suitable for efficient and stable sampling in various terrain environments.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0039] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A soil testing sampling device, characterized by, include: Adjustment mechanism (1), the adjustment mechanism (1) includes a mounting side plate (11), a directional motor (12) is provided on the mounting side plate (11), an adjustment worm (13) is provided at one end of the directional motor (12), and a power mechanism (2) is provided on one side of the adjustment worm (13); The power mechanism (2) includes a semi-arc gear disk (21), a mounting frame (22) is provided on one side of the semi-arc gear disk (21), a gripping motor (23) is provided in the mounting frame (22), an adjusting screw cone (26) is provided at one end of the gripping motor (23), an isolation plate frame (24) is provided on the outer surface of the adjusting screw cone (26), and a fine-tuning motor (25) is provided on one side of the mounting frame (22).

2. A soil testing sampling device according to claim 1, characterised in that: The outer surface of the adjusting screw cone (26) is provided with a gripping mechanism (3). The gripping mechanism (3) includes an outer ring tooth plate (31). The outer surface of the outer ring tooth plate (31) is provided with a connecting bracket (32). One end of the connecting bracket (32) is provided with a gripping sleeve (33). One end of the gripping sleeve (33) is provided with an opening and closing lifting plate (34).

3. A soil testing sampling device according to claim 2, wherein: One end of the fine-tuning motor (25) meshes with the teeth of the outer ring tooth plate (31). The outer surface of the outer ring tooth plate (31) is nested between the mounting frame (22) and the isolation plate frame (24). One end of the connecting bracket (32) is limited to the outer surface of the outer ring tooth plate (31) for rotation angle adjustment. The end of the connecting bracket (32) away from the outer ring tooth plate (31) is connected to one end of the gripping sleeve (33). The end of the gripping sleeve (33) away from the connecting bracket (32) is connected to the opening and closing lifting plate (34).

4. The soil testing sampling device of claim 1, wherein: One end of the directional motor (12) is mounted on the mounting side plate (11), and one end of the adjusting worm (13) passes through the mounting side plate (11) and is connected to one end of the directional motor (12). The outer surface of the adjusting worm (13) meshes with the outer surface of the semi-arc gear disk (21).

5. The soil testing sampling device of claim 1, wherein: One side of the mounting frame (22) is cast onto one side of the semi-arc gear disk (21), the outer surface of the gripping motor (23) is nested in the mounting frame (22), and one end of the adjusting screw cone (26) is connected to one end of the gripping motor (23).

6. The soil testing sampling device of claim 1, wherein: One side of the fine-tuning motor (25) is cast onto the side of the mounting frame (22) away from the semi-arc gear disk (21), and the inner surface of the isolation plate frame (24) is nested on the outer surface of the adjusting screw cone (26).

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