A drilling device for collecting separate samples of agricultural soil

Abstract

This utility model discloses a drill-and-take separation type farmland soil sample collection device, comprising: a movable chassis for communication with a microcontroller; a drilling mechanism; a soil-taking mechanism; a collection mechanism including a telescopic push rod, a collection box, a stepper motor, and a six-hole tray shaft-driven to the stepper motor drive end. Both the telescopic push rod and the six-hole tray are for communication with the microcontroller. The collection box is slidably mounted on the frame structure along the arrangement direction of the drilling and soil-taking mechanisms. The six-hole tray is rotatably connected to the collection box and has six sample-holding slots distributed on the same circumference. A navigation component is used for communication with the microcontroller and for collecting and storing three-dimensional spatial data of each sampling point. This drill-and-take separation type farmland soil sample collection device can complete the collection of soil samples from multiple points and store the soil samples from each sampling point separately, reducing labor intensity and improving sampling efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of soil sample collection equipment, specifically to a drill-and-separate farmland soil sample collection device. Background Technology

[0002] Soil sampling is a crucial step in agricultural information management and precision fertilization, and it is of great significance for soil property assessment and spatial distribution analysis of soil information in farmland areas. However, most existing soil sampling methods still rely heavily on manual sampling, primarily manual grid sampling, which is too slow, inaccurate, and unable to effectively obtain soil distribution information. Current farmland soil sampling devices often require tractor use, which improves efficiency, but the large size of the devices limits their applicability, and they lack autonomous navigation capabilities. Furthermore, during multiple sampling operations, soil samples from different sampling points need to be stored manually, resulting in low automation. Utility Model Content

[0003] The purpose of this invention is to provide a drill-and-separate farmland soil sample collection device to solve the above-mentioned technical problems, so as to automatically obtain the path of the sampling point, complete the collection of multiple soil sample collection points, and store the soil sample of each sampling point separately, thereby reducing labor intensity and improving sampling efficiency and accuracy.

[0004] This utility model provides a drill-and-separate farmland soil sample collection device, comprising:

[0005] A mobile chassis, which is used for communication with a microcontroller and is fixedly connected to a frame structure;

[0006] A soil drilling mechanism is fixedly installed on the frame structure and is used for communication connection with a microcontroller;

[0007] The soil sampling mechanism is symmetrically and fixedly installed on the frame structure with the soil drilling mechanism, and is used for communication connection with the microcontroller;

[0008] The collection mechanism includes a telescopic push rod, a collection box fixedly installed on the drive end of the telescopic push rod, a stepper motor fixedly installed on the collection box, and a six-hole tray axially connected to the drive end of the stepper motor. The telescopic push rod and the six-hole tray are both used for communication with a microcontroller. The collection box is slidably installed on the frame structure along the arrangement direction of the drilling mechanism and the soil sampling mechanism. The six-hole tray is rotatably connected to the collection box and has six sample slots distributed on the same circumference. The circumference can be moved to directly below the soil sampling mechanism.

[0009] The navigation component is used to communicate with the microcontroller and to collect and store three-dimensional spatial data of each sampling point.

[0010] According to one embodiment of the present invention, the collecting mechanism further includes a coupling with one end coaxially fixedly connected to the drive end of the stepper motor, a gearbox with one end coaxially fixedly connected to the other end of the coupling, and the other end of the gearbox coaxially fixedly connected to the six-hole tray.

[0011] According to one embodiment of the present invention, the collection mechanism further includes six sample cups, each of which is placed in a sample collection slot.

[0012] According to one embodiment of the present invention, the soil-taking mechanism includes a second electric adjusting push rod fixedly installed on the frame structure, a second flat-bottom joint fixedly connected to the driving end of the second electric adjusting push rod, a miniature electric push rod fixedly connected to the second flat-bottom joint, three three-claw soil-taking shovels, each with one end rotatably connected to the driving end of the miniature electric push rod, and three three-claw soil-taking shovel support members, each with one end rotatably connected to the edge end of the second flat-bottom joint. The second electric adjusting push rod and the miniature electric push rod are both used for communication connection to a microcontroller, and the other end of each of the three-claw soil-taking shovel support members is rotatably connected to each of the three-claw soil-taking shovels.

[0013] According to one embodiment of the present invention, each of the three-clawed soil-collecting shovels has a bucket-shaped opening structure, and the inner side of the shovel body is provided with an anti-slip groove.

[0014] According to one embodiment of the present invention, the soil sampling mechanism further includes a third three-hole fixing plate fixedly installed on the frame structure and a second push rod bracket fixedly installed on the third three-hole fixing plate, wherein the second electric adjusting push rod is fixedly installed on the second push rod bracket.

[0015] According to one embodiment of the present invention, the drive end of the miniature electric push rod is fixedly connected to an adapter plate; each of the three-claw soil-taking shovels includes an adapter rod rotatably connected to the adapter plate at one end and a shovel plate fixedly connected to the other end of the adapter rod at the back side, and the other end of each of the three-claw soil-taking shovel support members is rotatably connected to the back side of each of the shovel plates.

[0016] According to one embodiment of the present invention, the soil drilling mechanism includes a first electric adjusting push rod fixedly installed on the frame structure, a first flat-bottom joint fixedly connected to the driving end of the first electric adjusting push rod, a high-speed DC motor fixedly installed on the first flat-bottom joint, and an auger with one end coaxially connected to the driving end of the high-speed DC motor. The first electric adjusting push rod and the high-speed DC motor are both used for communication connection to a microcontroller.

[0017] According to one embodiment of the present invention, the soil drilling mechanism further includes a first three-hole fixing plate fixedly installed on the frame structure, a second three-hole fixing plate fixedly installed on the frame structure, a first push rod bracket fixedly installed on the first three-hole fixing plate, and a push rod fixing member fixedly connected to the second three-hole fixing plate. The upper end of the first electric adjusting push rod is fixedly connected to the first push rod bracket, and the middle end is fixedly connected to the push rod fixing member.

[0018] According to one embodiment of the present invention, the drilling mechanism further includes a guardrail fixedly installed on the frame structure, and the guardrail covers the outside of the auger.

[0019] Compared with existing technologies, the drill-and-separate farmland soil sample collection device of this utility model has the following advantages:

[0020] This utility model discloses a drill-and-separate farmland soil sample collection device. It uses a drilling mechanism to mechanically break up the surface soil, and then moves the base in a straight line to the sampling point. The three-claw shovel grabs the loose soil, and the matching collection mechanism uses a rotating six-hole tray to accurately collect the soil. This sampling operation is repeated at different points to complete the collection of soil samples from multiple points. The soil samples from each sampling point are stored separately in six sample troughs, which reduces labor intensity and improves sampling efficiency and accuracy. Attached Figure Description

[0021] Figure 1 This is a side view of the drill-and-separate farmland soil sample collection device of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the drill-and-separate farmland soil sample collection device of this utility model.

[0023] Figure 3 For the present utility model Figure 2 Another perspective on the structure;

[0024] Figure 4 This is a structural diagram of the collection mechanism of this utility model.

[0025] In the diagram: 1. Soil drilling mechanism; 10. Second three-hole fixing plate; 11. Push rod fixing component; 12. First flat-bottom connector; 13. High-speed DC motor; 14. First push rod bracket; 15. Motor support frame; 16. Motor adapter; 17. Guardrail; 18. Auger; 19. Second vertical frame; 2. Soil sampling mechanism; 20. Third three-hole fixing plate; 21. Second electric adjusting push rod; 22. Miniature electric push rod; 23. Three-jaw soil shovel; 24. Second push rod bracket; 25. Second 26. Flat-bottomed connector; 27. Three-claw soil-collecting shovel support; 28. Sample cup; 29. ​​Coupling; 20. Stepper motor; 31. Collection mechanism; 32. Second anti-collision bar; 33. Second transverse straight frame; 34. Six-hole tray; 35. Telescopic push rod; 36. Gearbox; 37. Collection box; 38. First transverse straight frame; 4. First anti-collision bar; 5. Navigation component; 6. Frame structure; 7. Mobile chassis; 8. First three-hole fixing plate; 9. First vertical frame; 10. First electric adjusting push rod.

[0026] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0031] This utility model discloses a drill-and-separate farmland soil sample collection device. Please refer to [link / reference]. Figures 1 to 4 ,include:

[0032] The mobile chassis 6 is used for communication with the microcontroller and is fixedly connected to the frame structure 5;

[0033] The soil drilling mechanism 1 is fixedly installed on the frame structure 5 and is used for communication connection with the microcontroller;

[0034] Soil sampling mechanism 2 is symmetrically fixedly installed on frame structure 5 with soil drilling mechanism 1, and is used for communication connection with microcontroller;

[0035] The collection mechanism 3 includes a telescopic push rod 34, a collection box 36 fixedly installed on the drive end of the telescopic push rod 34, a stepper motor 29 fixedly installed on the collection box 36, and a six-hole tray 33 axially connected to the drive end of the stepper motor 29. The telescopic push rod 34 and the six-hole tray 33 are both used for communication with the microcontroller. The collection box 36 is slidably installed on the frame structure 5 along the arrangement direction of the drilling mechanism 1 and the soil sampling mechanism 2. The six-hole tray 33 is rotatably connected to the collection box 36 and has six sample slots distributed on the same circumference. The circumference can be moved to directly below the soil sampling mechanism 2.

[0036] Navigation component 4 is used to communicate with the microcontroller and to collect and store three-dimensional spatial data of each sampling point.

[0037] During sampling, the microcontroller receives 3D spatial data from the navigation component 4, performs map construction and path planning, generates target path and sampling point location information, and sends the path information to the mobile chassis 6. The mobile chassis 6 travels to the target sampling location according to the path information, and sends a sampling command to the microcontroller via serial port upon arrival. After receiving the command, the microcontroller controls the drilling mechanism 1 to drill at the designated sampling location, forming a sampling pit, and then controls the drilling mechanism 1 to retrieve it. After the mobile chassis 6 travels a straight distance corresponding to the length of the entire vehicle, the microcontroller controls the soil-collecting mechanism 2 to grab and retrieve the loose soil sample from the sampling pit. Finally, the microcontroller controls the telescopic push rod 34 to push... The moving collection box 36 moves forward, causing the circumference of the sample collection trough to move directly below the soil sampling mechanism 2, and drives the stepper motor 29 to start, so that one of the sample collection troughs is directly below the soil sampling mechanism 2. Then, the soil sampling mechanism 2 is released, and the soil sample falls into the sample collection trough, completing one sampling action. After that, the moving chassis 6 travels to other target sampling locations according to the path information, and repeats the above operation until six samplings are completed. Through this sampling method, the path of the sampling point is automatically obtained through the navigation component 4, and the collection of multiple soil sample collection points is completed. The soil sample of each sampling point is stored separately in six sample collection troughs, reducing labor intensity and improving sampling efficiency and accuracy.

[0038] This structure effectively disperses mechanical vibrations during operation, avoiding uneven load distribution caused by concentrated structural elements and improving overall stability. The interchangeable design of the soil sampling drill and shovel adapts to the sampling needs of different types of farmland soil, enhancing the device's versatility and adaptability. The independent design of the three-claw shovel improves the accuracy and consistency of quantitative sampling. The microcontroller can communicate with the host computer control system. This invention, combining the microcontroller and host computer control system with navigation component 4, enables autonomous navigation to the target sampling point and automatic coordination of all components, achieving automated, precise, and efficient soil sample collection.

[0039] The navigation component 4 includes a 3D radar mounted on the mobile chassis 6 to acquire and store three-dimensional spatial data of sampling points and transmit it to a microcontroller. The microcontroller performs map construction and path planning, generates target path and sampling point location information, and sends the path information to the mobile chassis 6.

[0040] The frame structure 5 includes a first vertical frame 8, a second vertical frame 19, a first horizontal frame 37, and a second horizontal frame 31, which are welded together to form the frame structure.

[0041] Based on the above embodiments, a first anti-collision bar 38 is fixedly connected to the bottom of the first transverse straight frame 37, and a second anti-collision bar 30 is fixedly connected to the bottom of the second transverse straight frame 31 to form a protective function.

[0042] Please see Figure 3 and Figure 4 The collecting mechanism 3 also includes a coupling 28 with one end coaxially fixed to the drive end of the stepper motor 29, a gearbox 35 with one end coaxially fixed to the other end of the coupling 28, and the other end of the gearbox 35 coaxially fixed to the six-hole tray 33.

[0043] The six-hole tray 33 is driven to start rotating by the transmission of the coupling 28 and the gearbox 35.

[0044] The collection mechanism 3 also includes six sample cups 27, each of which is placed in a sample collection slot.

[0045] The soil samples are collected in 27 sample cups to facilitate subsequent removal and transfer.

[0046] Please see Figure 3 and Figure 4 The soil extraction mechanism 2 includes a second electric adjusting push rod 21 fixedly installed on the frame structure 5, a second flat-bottom joint 25 fixedly connected to the drive end of the second electric adjusting push rod 21, a miniature electric push rod 22 fixedly connected to the second flat-bottom joint 25, three three-claw soil extraction shovels 23 with one end rotatably connected to the drive end of the miniature electric push rod 22, and three three-claw soil extraction shovel support members 26 with one end rotatably connected to the edge end of the second flat-bottom joint 25. The second electric adjusting push rod 21 and the miniature electric push rod 22 are both used for communication connection to the microcontroller, and the other end of each three-claw soil extraction shovel support member 26 is rotatably connected to each three-claw soil extraction shovel 23.

[0047] When the microcontroller controls the soil sampling mechanism 2 to grab and retrieve loose soil samples from the sampling pit, the microcontroller controls the second electric adjusting push rod 21 to move down and simultaneously extends the micro electric push rod 22, causing the three three-jaw soil shovels 23 to open. After the second electric adjusting push rod 21 reaches the preset position, the micro electric push rod 22 retracts, causing the three three-jaw soil shovels 23 to close and grab the loose soil samples. Then the second electric adjusting push rod 21 is retrieved.

[0048] Each three-clawed soil-collecting shovel 23 has a bucket-shaped opening structure, and the inner side of the shovel body is equipped with anti-slip grooves. This is to improve the soil sampling effect by using the three-clawed soil-collecting shovel 23, and to reduce the possibility of soil samples slipping by using the anti-slip grooves.

[0049] The soil extraction mechanism 2 also includes a third three-hole fixing plate 20 fixedly installed on the frame structure 5 and a second push rod bracket 24 fixedly installed on the third three-hole fixing plate 20. The second electric adjusting push rod 21 is fixedly installed on the second push rod bracket 24.

[0050] The second electric adjusting push rod 21 is stably supported by the third three-hole fixing plate 20 and the second push rod bracket 24. Based on the above embodiment, in order to improve the installation balance of the second electric adjusting push rod 21, a shelf (not shown in the figure) is also fixedly connected to the second vertical frame 19, and the second electric adjusting push rod 21 is fixed to the shelf.

[0051] The drive end of the miniature electric push rod 22 is fixedly connected to an adapter plate; each three-jaw shovel 23 includes an adapter rod rotatably connected to the adapter plate at one end and a shovel plate fixedly connected to the other end of the adapter rod on the back side; the other end of each three-jaw shovel support 26 is rotatably connected to the back side of each shovel plate.

[0052] The corresponding shovel plates are stably installed through the adapter plate and adapter rod, and the three shovel plates open and close relative to the adapter plate under the push and retraction of the mini electric push rod 22.

[0053] Please see Figure 1 and Figure 2 The drilling mechanism 1 includes a first electric adjusting push rod 9 fixedly installed on the frame structure 5, a first flat-bottomed connector 12 fixedly connected to the drive end of the first electric adjusting push rod 9, a high-speed DC motor 13 fixedly installed on the first flat-bottomed connector 12, and a spiral drill 18 coaxially connected to the drive end of the high-speed DC motor 13. The first electric adjusting push rod 9 and the high-speed DC motor 13 are both used for communication connection to the microcontroller.

[0054] When the microcontroller controls the drilling mechanism 1 to drill at the designated sampling location and form a sampling pit, the microcontroller controls the drilling mechanism 1 to start the first electric adjusting push rod 9 and the high-speed DC motor 13. The first electric adjusting push rod 9 drives the high-speed DC motor 13 and the auger drill 18 to move downwards simultaneously until the auger drill 18 rotates and breaks up the surface soil. After the drilling task is completed, the microcontroller controls the high-speed DC motor 13 to flip over and the first electric adjusting push rod 9 to rise and be retrieved.

[0055] The first flat-bottomed connector 12 is fixedly connected to the motor support frame 15, and the high-speed DC motor 13 is also installed on the motor support frame 15 to improve the installation stability of the high-speed DC motor 13.

[0056] The drive end of the high-speed DC motor 13 is connected to the auger drill 18 via a motor adapter 16.

[0057] The drilling mechanism 1 also includes a first three-hole fixing plate 7 fixedly installed on the frame structure 5, a second three-hole fixing plate 10 fixedly installed on the frame structure 5, a first push rod bracket 14 fixedly installed on the first three-hole fixing plate 7, and a push rod fixing member 11 fixedly connected to the second three-hole fixing plate 10. The upper end of the first electric adjusting push rod 9 is fixedly connected to the first push rod bracket 14, and the middle end is fixedly connected to the push rod fixing member 11.

[0058] The first electric adjusting push rod 9 can be stably installed by means of the first three-hole fixing plate 7, the second three-hole fixing plate 10, the first push rod bracket 14, and the push rod fixing component 11.

[0059] The drilling mechanism 1 also includes a guardrail 17 fixedly installed on the frame structure 5, which covers the outside of the auger drill 18 to protect the auger drill 18.

[0060] The specific operating principle of the drill-and-separate farmland soil sample collection device of this utility model is as follows:

[0061] The microcontroller receives 3D spatial data from the 3D radar of the navigation component 4, performs map construction and path planning, generates target path and sampling point location information, and sends the path information to the mobile chassis 6. The mobile chassis 6 travels to the target sampling location according to the path information and sends a sampling command to the microcontroller via serial port upon arrival. Upon receiving the command, the microcontroller controls the drive board to start the first electric adjusting push rod 9 and the high-speed DC motor 13. The first electric adjusting push rod 9 receives control parameters such as height, speed, and thrust, while the high-speed DC motor 13 receives speed and direction commands. Together, they drive the auger drill 18 to rotate via the power-end shaft, breaking up the surface soil. When the first electric adjusting push rod 9 reaches the set depth and completes the drilling task, the microcontroller controls the high-speed DC motor 13 to reverse according to the preset drilling time, and the first electric adjusting push rod 9 rises and retracts.

[0062] After the chassis 6 moves forward a straight distance corresponding to the length of the entire vehicle, the microcontroller controls the second electric adjusting push rod 21 to move down, and simultaneously the micro electric push rod 22 extends, causing the three-claw soil-collecting shovel 23 to open. After the second electric adjusting push rod 21 reaches the preset position, the micro electric push rod 22 retracts, causing the three-claw soil-collecting shovel 23 to close, grabbing loose soil samples, and then the second electric adjusting push rod 21 is retracted.

[0063] The microcontroller then controls the telescopic push rod 34 to move the collection box 36 forward, while simultaneously driving the stepper motor 29 to rotate at a set angle. After torque amplification by the reduction gearbox 35, the six-hole tray 33 rotates 60° sequentially, ensuring that the soil sample released by the three-jaw shovel 23 accurately falls into the corresponding sample cup 27. After sample collection is complete, the telescopic push rod 34 is retracted, completing one sampling process.

[0064] The mobile chassis 6 continues to travel to the next sampling point, repeating the above operation until six samplings are completed.

[0065] It should be noted that operators can set the data collection task parameters, including various control data, through the host computer and initiate the start command to realize the power supply, path control, and coordinated operation of the mobile chassis and mechanical structure, thereby completing the soil sample collection work.

[0066] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling and separation type farmland soil sample collection device, characterized in that, include: A mobile chassis (6) is used for communication with a microcontroller and is fixedly connected to a frame structure (5); A soil drilling mechanism (1) is fixedly installed on the frame structure (5) and is used for communication connection with a microcontroller; Soil sampling mechanism (2), which is symmetrically fixedly installed on the frame structure (5) with soil drilling mechanism (1), and is used for communication connection with single-chip microcomputer; The collection mechanism (3) includes a telescopic push rod (34), a collection box (36) fixedly installed on the drive end of the telescopic push rod (34), a stepper motor (29) fixedly installed on the collection box (36), and a six-hole tray (33) axially connected to the drive end of the stepper motor (29). The telescopic push rod (34) and the six-hole tray (33) are both used for communication connection with the microcontroller. The collection box (36) is slidably installed on the frame structure (5) along the arrangement direction of the drilling mechanism (1) and the soil sampling mechanism (2). The six-hole tray (33) is rotatably connected to the collection box (36) and has six sample slots distributed on the same circumference. The circumference can be moved to directly below the soil sampling mechanism (2). The navigation component (4) is used to communicate with the microcontroller and to collect and store the three-dimensional spatial data of each sampling point.

2. The drill-and-separate farmland soil sample collection device according to claim 1, characterized in that, The collecting mechanism (3) further includes a coupling (28) with one end coaxially fixed to the drive end of the stepper motor (29), and a gearbox (35) with one end coaxially fixed to the other end of the coupling (28). The other end of the gearbox (35) is coaxially fixed to the six-hole tray (33).

3. The drilling and separation type farmland soil sample collection device according to claim 1, characterized in that, The collection mechanism (3) also includes six sample cups (27), each of which is placed in a sample collection slot.

4. The drill-and-separate farmland soil sample collection device according to claim 1, characterized in that, The soil extraction mechanism (2) includes a second electric adjusting push rod (21) fixedly installed on the frame structure (5), a second flat-bottom joint (25) fixedly connected to the driving end of the second electric adjusting push rod (21), a miniature electric push rod (22) fixedly connected to the second flat-bottom joint (25), three three-claw soil extraction shovels (23) with one end rotatably connected to the driving end of the miniature electric push rod (22), and three three-claw soil extraction shovel support members (26) with one end rotatably connected to the edge end of the second flat-bottom joint (25). The second electric adjusting push rod (21) and the miniature electric push rod (22) are both used for communication connection to a microcontroller. The other end of each of the three-claw soil extraction shovel support members (26) is rotatably connected to each of the three-claw soil extraction shovels (23).

5. The drill-and-separate farmland soil sample collection device according to claim 4, characterized in that, Each of the three-clawed soil-collecting shovels (23) has a bucket-shaped opening structure, and the inner side of the shovel body is provided with anti-slip grooves.

6. The drill-and-separate farmland soil sample collection device according to claim 4, characterized in that, The soil extraction mechanism (2) also includes a third three-hole fixing plate (20) fixedly installed on the frame structure (5) and a second push rod bracket (24) fixedly installed on the third three-hole fixing plate (20), wherein the second electric adjusting push rod (21) is fixedly installed on the second push rod bracket (24).

7. The drill-and-separate farmland soil sample collection device according to claim 4, characterized in that, The drive end of the miniature electric push rod (22) is fixedly connected to an adapter plate; each of the three-claw shovels (23) includes an adapter rod rotatably connected to the adapter plate at one end and a shovel plate fixedly connected to the other end of the adapter rod on the back side; the other end of each of the three-claw shovel supports (26) is rotatably connected to the back side of each of the shovel plates.

8. The drilling and separation type farmland soil sample collection device according to any one of claims 1-7, characterized in that, The drilling mechanism (1) includes a first electric adjusting push rod (9) fixedly installed on the frame structure (5), a first flat-bottom joint (12) fixedly connected to the drive end of the first electric adjusting push rod (9), a high-speed DC motor (13) fixedly installed on the first flat-bottom joint (12), and a spiral drill (18) with one end coaxially connected to the drive end of the high-speed DC motor (13). The first electric adjusting push rod (9) and the high-speed DC motor (13) are both used for communication connection to a microcontroller.

9. The drill-and-separate farmland soil sample collection device according to claim 8, characterized in that, The drilling mechanism (1) further includes a first three-hole fixing plate (7) fixedly installed on the frame structure (5), a second three-hole fixing plate (10) fixedly installed on the frame structure (5), a first push rod bracket (14) fixedly installed on the first three-hole fixing plate (7), and a push rod fixing member (11) fixedly connected to the second three-hole fixing plate (10). The upper end of the first electric adjusting push rod (9) is fixedly connected to the first push rod bracket (14), and the middle end is fixedly connected to the push rod fixing member (11).

10. The drill-and-separate farmland soil sample collection device according to claim 9, characterized in that, The drilling mechanism (1) also includes a guardrail (17) fixedly installed on the frame structure (5), and the guardrail (17) covers the outside of the auger (18).

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