Full-automatic three-dimensional crop root sampling device

Abstract

The utility model belongs to the technical field of agricultural equipment, and discloses a full-automatic three-dimensional crop root sampling device which comprises a fixed frame, a control mechanism is arranged on the fixed frame, and a sampling mechanism is in transmission connection with the control mechanism; the sampling mechanism comprises a lifting rod; the lifting rod penetrates through the control mechanism and is in transmission connection with a cubic drill bit; a deviation correcting control module and a depth monitoring module are arranged in the lifting rod, electrically connected with the control mechanism and used for controlling the perpendicularity and the drilling depth of the cubic drill bit. A cutting-off assembly is arranged around the outer wall of the cubic drill bit, is electrically connected with the control mechanism, and cuts off a soil body sample after sampling of the cubic drill bit. The device is compact in structure and convenient to use, integrates the advanced functions of drilling, deviation correction control, depth monitoring, intelligent operation and the like, greatly reduces the workload in the sampling process, saves labor force, is convenient to operate, and provides powerful technical support for plant root system research.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural equipment technology, and in particular relates to a fully automatic three-dimensional crop root sampling device. Background Technology

[0002] During crop growth and development, the root system plays a vital role in absorption, transport, support, synthesis, and storage. In-depth research into the response mechanisms of the root system to different environmental conditions, and clarifying the impact of root physiological characteristics on crop yield formation and water and fertilizer absorption and utilization, is an important topic in agricultural scientific research. Although root traits are as important as aboveground traits, the fact that crop roots grow underground makes sampling, measurement, and observation more difficult. Therefore, compared to research on aboveground parts, research on crop roots is relatively weak.

[0003] The first step in root system research is root sampling, and the choice of methods and techniques is crucial. Currently, commonly used root sampling methods are mainly divided into two categories: excavation methods and non-excavation methods. Non-excavation methods mostly employ non-soil cultivation methods, but this approach cannot comprehensively and accurately reflect the actual morphological characteristics of crop roots in the soil, resulting in insufficient data reliability. Excavation methods can be further subdivided into direct excavation, drilling, root box methods, and mesh bag methods, among others. Direct excavation and drilling methods both rely heavily on manual labor during sampling, which is cumbersome, labor-intensive, and prone to errors due to human factors, significantly limiting sampling efficiency and research progress. Root box methods require pre-fabrication and pre-burying of root boxes, making implementation difficult and potentially affecting normal crop growth and root development.

[0004] Therefore, this application designs a fully automatic three-dimensional crop root sampling device to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model proposes a fully automatic three-dimensional crop root sampling device, which achieves efficient and non-destructive sampling of different crop root systems through high automation and precise control.

[0006] To achieve the above objectives, this utility model provides a fully automatic three-dimensional crop root sampling device, including a fixed frame, a control mechanism on the fixed frame, and a sampling mechanism for sampling connected to the control mechanism.

[0007] The sampling mechanism includes a lifting rod that is driven to the control mechanism, the lifting rod passing through the control mechanism and being driven to a cubic drill bit for sampling;

[0008] The lifting rod is equipped with a tilt control module and a depth monitoring module. The tilt control module and the depth monitoring module are electrically connected to the control mechanism and are used to control the verticality and drilling depth of the cubic drill bit.

[0009] The outer wall of the cubic drill bit is surrounded by a cutting component, which is electrically connected to the control mechanism and cuts the soil sample after the cubic drill bit takes a sample.

[0010] Preferably, the cubic drill bit includes a shell, and the shell is provided with a plurality of horizontally and vertically arranged partitions, which divide the inner cavity of the shell into a plurality of independently arranged storage cavities.

[0011] Preferably, the top end of the cutting component is provided with a plurality of telescopic columns, the plurality of telescopic columns are arranged around the lifting rod, and the top end of the telescopic columns is fixedly connected to the bottom end of the control mechanism.

[0012] Preferably, the cutting assembly includes a controller arranged around the lifting rod, and the bottom ends of a plurality of telescopic columns are fixed to the top end of the controller; the bottom end of the controller is provided with a plurality of transfer columns, and the bottom end of the transfer columns is provided with a bottom telescopic shear plate for cutting the soil sample.

[0013] Preferably, a drill bit pusher is fixedly connected to the top of the cubic drill bit, the top of the drill bit pusher is fixedly connected to the bottom of the lifting rod, and the drill bit pusher passes through the controller through the pusher groove on the controller.

[0014] Preferably, the control mechanism includes a protective housing fixedly mounted on the fixed frame, an electric motor installed inside the protective housing, and the output end of the electric motor being connected to the lifting rod to provide power for the drilling of the cubic drill bit.

[0015] Preferably, a rechargeable battery pack is provided inside the protective housing, and the rechargeable battery pack is electrically connected to the electric motor, the tilt control module and the depth monitoring module respectively.

[0016] Preferably, the protective housing is provided with a touch-screen operated control panel, which controls the operation of the equipment through signal transmission lines and power lines installed inside the lifting rod.

[0017] Preferably, the protective housing is provided with a plurality of control buttons, which are electrically connected to the operation panel and are used to control the operation of the equipment.

[0018] Preferably, the protective shell is provided with several handrails.

[0019] Compared with the prior art, this utility model has the following advantages and technical effects: This utility model discloses a fully automatic three-dimensional crop root sampling device, mainly used for automated root sampling; in use, the device is fixedly installed at the location where root sampling is required by the fixing frame, facilitating accurate positioning and sampling; during sampling, the control mechanism automatically controls and provides power, driving the cubic drill bit to drill towards the selected location for sampling via the descending lifting rod; the tilt control module inside the lifting rod can monitor and adjust the verticality of the cubic drill bit in real time, while the depth monitoring module can control the drilling depth of the cubic drill bit, thus achieving the desired results. The integrated control mechanism allows for precise control of the drilling depth of the cubic drill bit, ensuring comprehensiveness and accuracy of sampling. This helps researchers gain a deeper understanding of the distribution and growth of roots in different soil layers, while minimizing physical damage to the roots and ensuring high integrity and representativeness of the sampled root samples. The cutting component, located on the outer wall of the cubic drill bit, allows for switching the connection between the root samples inside the cubic drill bit and the outside environment after the drill bit has reached a designated position. This facilitates the removal of the cubic drill bit, completing the sampling process and preventing sample scattering caused by the root samples not breaking away from the original soil layer, thus ensuring the accuracy of the obtained samples.

[0020] This utility model has a compact structure and is easy to use. It integrates advanced drilling, tilt control, depth monitoring and intelligent operation functions, which greatly reduces the workload in the sampling process, saves labor, and is easy to operate, providing strong technical support for plant root research. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the fully automatic three-dimensional crop root sampling device of this utility model;

[0023] Figure 2 This is a schematic diagram of the operation panel of this utility model;

[0024] Figure 3 This is the front view of the cubic drill bit of this utility model;

[0025] Figure 4 This is a top view of the cubic drill bit of this utility model;

[0026] Figure 5 This is a side view of the cubic drill bit of this utility model;

[0027] In the diagram: 1. Fixing frame; 2. Transfer column; 3. Cube drill bit; 4. Controller; 5. Bottom telescopic shear plate; 6. Pusher groove; 7. Drill bit pusher; 8. Depth monitoring module; 9. Telescopic joint; 10. Lifting rod; 11. Telescopic column; 12. Electric motor; 13. Rechargeable battery pack; 14. Handrail; 15. Control panel; 16. Power line; 17. Signal transmission line; 18. Inclination control module; 19. Display screen; 20. Charging port; 21. Control button; 22. Protective shell; 23. Outer shell; 24. Partition; 25. Storage cavity. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Existing plant root sampling devices play an important role in scientific research and agricultural production, but they still have some shortcomings, mainly in the following aspects:

[0030] 1. Inconvenient to carry: Many traditional sampling devices are large and heavy, making them inconvenient to carry and quickly deploy in the field. This problem is particularly prominent when frequent changes in sampling locations or large-scale sampling are required.

[0031] 2. Low sampling efficiency: Traditional sampling methods, such as digging and root box methods, are often time-consuming, labor-intensive, and inefficient. This limits researchers' ability to quickly understand and assess the growth of plant roots.

[0032] 3. Insufficient sampling accuracy: Due to the complex and variable soil conditions, existing sampling devices may have difficulty accurately controlling the sampling depth and range during the sampling process, leading to errors in the sampling results. In addition, the sampling process may also damage the root system, affecting the integrity and representativeness of the sample.

[0033] 4. Limited applicability: Root growth varies significantly among different crops and soil conditions, leading to different requirements for sampling devices. Existing sampling devices may not be fully adaptable to all crops and soil conditions, necessitating customization or adjustment for specific situations.

[0034] 5. Insufficient flexibility: Some sampling devices are relatively simple in design and function, lacking flexibility. For example, they may not be able to simultaneously meet the sampling needs for multiple aspects such as root morphology, distribution, and density.

[0035] Existing patents disclose a tree root sampling device, including a sampling cylinder, a piston assembly, and a soil holding net; the piston plate of the piston assembly is slidably disposed on the sampling cylinder, the piston rod of the piston assembly is connected to the upper end of the piston plate, the soil holding net is detachably connected to the lower end of the piston plate, the piston rod includes a slidingly inserted upper rod body and a lower rod body, a first elastic element is disposed between the upper rod body and the lower rod body, a top rod is disposed on the upper surface of the piston plate, and a liquid inlet valve and a pressure valve are disposed at the upper and lower ends of the sampling cylinder.

[0036] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Reference Figures 1-5 As shown, this embodiment provides a fully automatic three-dimensional crop root sampling device, including a fixed frame 1, a control mechanism is provided on the fixed frame 1, and a sampling mechanism for sampling is driven to the control mechanism.

[0038] The sampling mechanism includes a lifting rod 10 that is driven to the control mechanism. The lifting rod 10 passes through the control mechanism and is driven to a cubic drill bit 3 for sampling.

[0039] The lifting rod 10 is equipped with a tilt control module 18 and a depth monitoring module 8. The tilt control module 18 and the depth monitoring module 8 are electrically connected to the control mechanism and are used to control the verticality and drilling depth of the cubic drill bit 3.

[0040] The outer wall of the cubic drill bit 3 is surrounded by a cutting component, which is electrically connected to the control mechanism and cuts off the soil sample after the cubic drill bit 3 takes a sample.

[0041] This utility model discloses a fully automatic three-dimensional crop root sampling device, mainly used for automated root sampling. In use, the device is fixedly installed at the location where root sampling is required using a mounting bracket, facilitating precise positioning and sampling. The lifting rod 10, as the main body of the sampling device, is responsible for driving the device into the soil at a predetermined depth. During sampling, the control mechanism automatically controls and provides power, driving the cubic drill bit 3 to drill towards the selected location via the descending lifting rod 10. The tilt control module 18 within the lifting rod 10 can monitor and adjust the verticality of the cubic drill bit 3 in real time, improving sampling accuracy. The depth monitoring module 8 controls the cubic drill bit's verticality. The drilling depth of drill bit 3, combined with the adjustment of the control mechanism, can be precisely controlled to ensure the comprehensiveness and accuracy of sampling. This helps researchers gain a deeper understanding of the distribution and growth of roots in different soil layers, while reducing physical damage to the roots and ensuring the high integrity and representativeness of the sampled root system. The cutting component, located on the outer wall of the cube drill bit 3, can switch the connection between the root sample inside the cube drill bit 3 and the outside environment after the cube drill bit 3 has reached the designated position. This facilitates the removal of the cube drill bit 3, completing the sampling process and preventing sample scattering caused by the root sample not breaking away from the original soil layer, thus ensuring the accuracy of the obtained sample. This utility model has a compact structure and is easy to use. It integrates advanced drilling, tilt control, depth monitoring, and intelligent operation functions, greatly reducing the workload during the sampling process, saving labor, and providing strong technical support for plant root research.

[0042] In one embodiment of this application, the lifting rod 10 is made of stainless steel pipe, and its size is selected as 100cm to meet the required sampling requirements; other sizes can also be selected according to the size.

[0043] In one embodiment of this application, the depth detection module has a built-in miniature electronic depth sounder with an accuracy of 0.1 cm. It can monitor and display the depth of the drill bit into the soil in real time to ensure accurate sampling depth. The measurement data is transmitted through the signal transmission line 17 and displayed on the control mechanism. The miniature electronic depth sounder is automatically charged through the power line 16.

[0044] In one embodiment of this application, the tilt control module 18 is equipped with a built-in miniature precision electronic level measuring instrument with an accuracy of 0.1 cm / m and 0.1°. The tilt control module 18 can be connected to the control mechanism through the signal transmission line 17 to ensure that the lifting rod 10 and the drill bit pusher 7 remain perpendicular to the ground during the sampling process, thereby improving the sampling accuracy.

[0045] In one embodiment of this application, the fixing frame 1 includes several adjustable legs of varying lengths and angles, which can be fixed and leveled at selected positions to ensure the accuracy and stability of sampling.

[0046] In one embodiment of this application, the fixing mechanism is bolted to the mounting base, and the top of the support leg is hinged to the bottom of the mounting base.

[0047] In one embodiment of this application, the mounting base is provided with a through hole, through which the lifting rod 10 passes.

[0048] Further optimizing the design, the cubic drill bit 3 includes a shell 23, within which several transversely and longitudinally arranged partitions 24 are provided. The partitions 24 divide the inner cavity of the shell 23 into several independently arranged storage cavities 25. The cubic drill bit 3 includes a cube-shaped shell 23 with an open bottom and a blade-shaped cut to improve cutting ability, disconnecting the target area from the external root system for easy sampling. The transversely and longitudinally arranged partitions 24 within the shell 23 divide the inner cavity of the shell 23 into different storage cavities 25, allowing the obtained sample to be sealed at different cross-sections, facilitating observation of the internal root structure within the sample.

[0049] In one embodiment of this application, the cubic drill bit 3 can be designed in several specifications to adapt to the size of different crop root systems and to prevent damage to the root system during sampling.

[0050] In one embodiment of this application, the cubic drill bit 3 can be designed in two specifications: the length × width × height of the small cell is 5x5x60cm and the length × width × height of the cubic drill bit 3 is 25x15x60cm; the length × width × height of the small cell is 10x10x60cm and the length × width × height of the cubic drill bit 3 is 50x30x60cm. The appropriate drill bit can be selected for sampling according to the root size of different crops, which can adapt to the size of different crop root systems and is less likely to damage the root system during the sampling process.

[0051] In one embodiment of this application, the cubic drill bit 3 is made of stainless steel, and the specific components can be selected according to requirements.

[0052] Further optimization of the design involves installing several telescopic columns 11 at the top of the cutting assembly. These telescopic columns 11 surround the lifting rod 10, with their tops fixed to the bottom of the control mechanism. Each telescopic column 11 consists of two stainless steel pipes of different specifications: a larger diameter pipe with a diameter of 3cm and a smaller diameter pipe with a diameter of 2cm, both 30cm in length. The smaller diameter pipe is inserted into the larger diameter pipe, forming an adjustable telescopic joint 9 between them. This joint connects the mounting plate below the control mechanism to the cutting assembly, allowing the cutting assembly to move with the cubic drill bit 3 during drilling and sampling while remaining stable. This supports the cubic drill bit 3 and adjusts its position to accommodate sampling needs at different depths.

[0053] Further optimization of the scheme: the cutting component includes a controller 4 surrounding the lifting rod 10, with the bottom ends of several telescopic columns 11 fixed to the top of the controller 4; several transfer columns 2 are provided at the bottom of the controller 4, and a bottom telescopic shear plate 5 for cutting the soil sample is provided at the bottom of the transfer columns 2. The controller 4 surrounds the lifting rod 10, and the ends of the telescopic columns 11 are connected to the top of the controller 4, facilitating control and ensuring stability on the mounting plate below the control mechanism; several transfer columns 2 are installed at the bottom of the controller 4, which wrap around the outside of the cubic drill bit 3 and can enter the predetermined soil layer simultaneously with the cubic drill bit 3; the bottom telescopic shear plate 5 is located at the bottom of the transfer columns 2 and remains below the cubic drill bit 3 during the sampling process. After the cubic drill bit 3 enters the predetermined soil layer, the bottom telescopic shear plate 5 can extend and cut under the control of the controller 4, severing the connection between the root sample entering the cubic drill bit 3 and the outside world, achieving soil sample separation and facilitating extraction.

[0054] In one embodiment of this application, the controller 4 is made of stainless steel and has a built-in integrated circuit; it receives all instructions issued by the control mechanism and controls the entire sampling process of the device.

[0055] In one embodiment of this application, the transmission column 2 has a power line 16 inside and is connected to the rechargeable battery pack 13 to transmit signals to the bottom telescopic shear plate 5.

[0056] In a further optimized design, a drill bit pusher 7 is fixedly attached to the top of the cubic drill bit 3. The top of the drill bit pusher 7 is fixedly connected to the bottom of the lifting rod 10. The drill bit pusher 7 passes through the pusher groove 6 on the controller 4. The drill bit pusher 7 is made of stainless steel and is positioned above the cubic drill bit 3. The bottom of the lifting rod 10 is seamlessly connected to the drill bit pusher 7, which drives the cubic drill bit 3 forward to achieve the sampling process.

[0057] The scheme is further optimized. The control mechanism includes a protective housing 22 fixedly installed on the fixed frame 1. An electric motor 12 is installed inside the protective housing 22. The output end of the electric motor 12 is connected to the lifting rod 10 to provide power for the drilling of the cubic drill bit 3. A rechargeable battery pack 13 is installed inside the protective housing 22. The rechargeable battery pack 13 is electrically connected to the electric motor 12, the skew control module 18 and the depth monitoring module 8 respectively. A touch screen operation panel 15 is installed on the protective housing 22. The operation panel 15 controls the operation of the equipment through the signal transmission line 17 and the power line 16 installed inside the lifting rod 10. The protective housing 22 is designed in a ring shape and is fixed to the mounting plate by bolts to protect the internal structure. The electric motor 12 is installed inside the protective housing and provides drilling power to the cubic drill bit 3 through the lifting rod 10. The rechargeable battery pack 13 provides power for the operation of the device. The operation panel 15, which is mounted on the protective housing, is designed with an integrated circuit and serves as the control core of the device. The display screen 19 on the operation panel 15 is a touch-sensitive high-definition color LCD screen that can display the sampling date, latitude and longitude, the real-time depth of the drill bit into the soil surface measured by the depth monitoring module 8, and the relative zero value and absolute zero value data from the miniature precision electronic level measuring instrument. Calibration settings can be made by manual touch.

[0058] In one embodiment of this application, the voltage of the rechargeable battery pack 13 is 220 volts and the current is 10 amps.

[0059] In one embodiment of this application, the signal transmission line 17 and the power line 16 are responsible for transmitting the measurement data of components such as the tilt control module 18 and the depth monitoring module 8 to the operation panel 15, and providing power support for the lifting rod 10, the drill bit pusher 7, the bottom telescopic cutting plate and related equipment.

[0060] To further optimize the design, the protective housing 22 is equipped with several control buttons 21, which are electrically connected to the operation panel 15 for controlling the operation of the equipment. The control buttons 21 on the protective housing are used to input control signals to the operation panel 15, which are used to control the on / off state of the equipment, the raising and lowering of the lifting rod 10, and the operation of the bottom telescopic shear plate 5, making the process convenient and quick.

[0061] In one embodiment of this application, a charging port 20 is provided on the protective housing 22 for charging the rechargeable battery pack 13.

[0062] To further optimize the design, several handrails 14 are provided on the protective housing 22. The handrails 14 facilitate the operator's carrying and movement of the sampling device.

[0063] Working principle:

[0064] This invention uses an electric motor 12 to power a lifting rod 10, which drives the drill bit to penetrate deeper into the soil. A tilt control module 18 monitors the verticality of the lifting rod 10 and the drill bit in real time, adjusting it to ensure accurate sampling direction. A depth monitoring module 8 provides real-time feedback on the drill bit depth. Before sampling, the operator uses the control button 21 on the borehole power supply to set the desired soil depth. Using the control button 21 on the operation panel 15, the drill bit enters the predetermined depth. Then, the operator manipulates the transfer column 2 to bring the bottom telescopic shear plate 5 to the bottom of the cubic drill bit 3 and cuts the soil sample. Afterward, the operator uses the control button 21 on the operation panel 15 to raise the cubic drill bit 3 carrying the soil sample, completing the sampling process.

[0065] This fully automated three-dimensional crop root sampling device integrates an electric motor 12, a tilt control module 18, a depth monitoring module 8, and an intelligent operation panel 15, enabling efficient and accurate sampling of crop roots. Its working principle covers multiple aspects such as power transmission, drilling sampling, tilt control, depth monitoring, and operation control, providing strong technical support for plant root research.

[0066] This utility model discloses a fully automatic three-dimensional crop root sampling device, which is easy to operate and flexible to use. It only requires charging and installation to be used. Compared with the traditional manual drilling method, it greatly reduces the workload in the sampling process, saves labor, and is easy to operate.

[0067] This invention has broad applicability and can meet the needs of three-dimensional sampling of crop roots under different soil conditions. Different specifications of drill bits are suitable for whole-root sampling of different types of crops. At the same time, because the drill bit is divided into small cells, it can realize horizontal and vertical stratified sampling of crop roots.

[0068] This invention boasts high accuracy; when encountering hard soil, the built-in electric motor 12 enables the drill bit to penetrate in a single pass. The entire sampling process is a one-time event, effectively avoiding errors caused by soil scattering after removal from the root system and improving sampling accuracy.

[0069] This invention features high precision. The tilt control module 18 is equipped with a built-in miniature precision electronic level measuring instrument, which ensures vertical sampling. The depth detection module is equipped with a built-in miniature electronic depth sounder, which can measure the real-time drilling depth of the drill bit and improve the accuracy of sampling.

[0070] This invention addresses the technical problems of high labor intensity, cumbersome operation, and insufficient sampling accuracy and precision in traditional crop root sampling processes by proposing a fully automatic three-dimensional crop root sampling device. This device is simple to operate and flexible to use; it only requires charging and installation before it can be put into use, significantly reducing the workload in the sampling process, saving a significant amount of labor, and improving operational convenience.

[0071] In terms of technical solution, this utility model design has broad applicability and can adapt to the needs of three-dimensional sampling of crop roots under different soil conditions. By equipping it with drill bits of different specifications, it enables holistic sampling of the root systems of various crops. At the same time, the drill bit is divided into small cell structures, making horizontal and vertical stratified sampling of crop roots possible, further enriching the level and diversity of sampling.

[0072] In terms of effectiveness, this utility model has achieved significant social, economic, and technological benefits. Specifically:

[0073] Social impact: It simplifies the operation process of crop root sampling, reduces the reliance on professional skills, and enables more people to easily master and apply the technology, thus promoting the popularization and development of agricultural research and practice.

[0074] Economic Benefits: Due to the significant reduction in labor and time costs during the sampling process, the application of this invention is expected to bring substantial economic benefits to farmers and research institutions. Preliminary estimates suggest that compared to traditional methods, using this invention for crop root sampling can save approximately [amount missing] labor costs and shorten the sampling cycle by half.

[0075] Technical benefits: The built-in electric motor 12 ensures that the drill bit can successfully penetrate hard soil in one go, avoiding root damage and soil disturbance caused by multiple attempts. The single-pass sampling process effectively prevents soil from scattering after removal from the roots, reducing sampling errors and improving sampling accuracy. Simultaneously, the miniature precision electronic level measuring instrument built into the tilt control module 18 and the miniature electronic depth sounder built into the depth detection module jointly ensure the verticality of the sampling and the accuracy of depth measurement, improving the precision of the sampling results.

[0076] In summary, this utility model, through its innovative technical solution, effectively solves several technical problems in the process of crop root sampling, achieving significant improvements in social, economic, and technical effects, and has broad application prospects and promotional value.

[0077] Taking corn root sampling during the silking stage as an example, the specific steps are as follows:

[0078] Step 1: Charge the rechargeable battery pack 13 beforehand.

[0079] Step 2: In the corn planting area, select 3 corn plants that are growing in the same way and can represent the continuous population. Cut off the above-ground part of the plants. Divide the soil where the roots of the 3 corn plants are located into 9 equal parts based on the plant spacing and 5 equal parts based on the row spacing. The root sampling depth is 0-60cm.

[0080] Step 2: Based on the defined sampling range and predetermined depth, select the appropriate cubic drill bit 3 and lifting rod 10, install and debug the fully automatic three-dimensional crop root sampling device, determine the sampling location and set up the device.

[0081] Step 3: Turn on the control switch control button 21, start the electric motor 12, and the operator turns on the control button 21 on the operation panel 15 to control the raising and lowering of the lifting rod 10. The lifting rod 10 lowers and vertically pushes the cubic drill bit 3 into the soil. The device starts to automatically sample until the drill bit reaches the predetermined soil depth.

[0082] Step 4: The operator turns on the control button 21 on the operation panel 15 to control the bottom telescopic cutting plate. The bottom telescopic cutting plate cuts the soil below the drill bit, and the sampling is completed.

[0083] Step 5: The staff turns on the control button 21 on the control panel 15 to control the lifting rod 10. By supplying power to the electric motor 12, the electric motor 12 pulls the cubic drill bit 3 through the lifting rod 10, and the device brings the sample out of the soil.

[0084] Advantages of this device:

[0085] 1. High degree of automation: The device can realize a fully automated root sampling process. From deep soil sampling to sampling completion, no manual intervention is required, which greatly improves sampling efficiency and reduces labor intensity.

[0086] 2. Three-dimensional stratified sampling: The device can perform three-dimensional stratified sampling of crop roots, ensuring the comprehensiveness and accuracy of the sampling, and helping researchers to gain a deeper understanding of the distribution and growth of roots in different soil layers.

[0087] 3. Reduced damage to the root system: By precisely controlling the sampling process, the device can minimize physical damage to the root system, ensuring that the sampled root samples have high integrity and representativeness.

[0088] 4. Wide range of applications: This device is suitable for root sampling of various crops, such as corn, wheat, upland rice, cotton, soybeans, rapeseed, etc., and has strong versatility and practicality.

[0089] 5. Improve research efficiency: Due to the high efficiency and accuracy of the sampling process, this device can significantly improve the efficiency of researchers in root system research and accelerate the output of research results.

[0090] 6. Reduce costs: Although the research and development and production costs of the device itself may be high, in the long run, improving sampling efficiency and accuracy and reducing labor costs and resource waste will help reduce the overall research cost.

[0091] To further improve the applicability and flexibility of this utility model, this embodiment can be extended and expanded in the following directions, all of which are optimizations based on the technical solution of this application and are within the protection scope of this application:

[0092] Replaceable cubic drill bit 3: More sizes of cubic drill bit 3 can be designed to meet the root sampling needs of more types of crops; at the same time, the cubic drill bit 3 can be connected to the drill bit pusher 7 by quick plug-in method, optimizing the replacement mechanism of the cubic drill bit 3 and making the replacement process simpler and faster.

[0093] Wireless remote control operation: Wireless remote control function can be added to the existing system, allowing operators to remotely control the sampling device from a distance, improving safety and convenience during the sampling process.

[0094] Intelligent path planning: By combining GPS positioning and map information, an intelligent path planning system is developed to automatically plan sampling paths and control the sampling device to move along the predetermined path, thereby automating root sampling of large-area crops.

[0095] Integrated data analysis software: The data analysis software module is integrated into the operation panel 15 to perform preliminary analysis and processing of the sampled data in real time, providing researchers with intuitive root growth data reports.

[0096] This invention's fully automated three-dimensional crop root sampling device effectively solves the problems of low efficiency and poor accuracy in traditional sampling methods through highly automated and precise control techniques. Furthermore, by proposing multiple alternative solutions, the applicability and flexibility of this invention are further improved.

[0097] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0098] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A fully automatic three-dimensional crop root sampling device, characterized in that: Includes a fixed frame (1), on which a control mechanism is provided, and a sampling mechanism for taking samples is connected to the control mechanism; The sampling mechanism includes a lifting rod (10) that is driven to the control mechanism. The lifting rod (10) passes through the control mechanism and is driven to a cubic drill bit (3) for sampling. The lifting rod (10) is equipped with a tilt control module (18) and a depth monitoring module (8). The tilt control module (18) and the depth monitoring module (8) are electrically connected to the control mechanism and are used to control the verticality and drilling depth of the cubic drill bit (3). The outer wall of the cubic drill bit (3) is surrounded by a cutting component, which is electrically connected to the control mechanism and cuts the soil sample after the cubic drill bit (3) takes a sample.

2. The fully automatic three-dimensional crop root sampling device according to claim 1, characterized in that: The cubic drill bit (3) includes a shell (23), and a plurality of horizontally and vertically arranged partitions (24) are provided inside the shell (23). The partitions (24) divide the inner cavity of the shell (23) into a plurality of independently arranged storage cavities (25).

3. The fully automatic three-dimensional crop root sampling device according to claim 1, characterized in that: The top of the cutting assembly is provided with a plurality of telescopic columns (11) with telescopic flexibility. The plurality of telescopic columns (11) are arranged around the lifting rod (10). The top of the telescopic columns (11) is fixedly connected to the bottom of the control mechanism.

4. The fully automatic three-dimensional crop root sampling device according to claim 3, characterized in that: The cutting assembly includes a controller (4) arranged around the lifting rod (10), and the bottom ends of a plurality of telescopic columns (11) are fixed to the top end of the controller (4); a plurality of transmission columns (2) are provided at the bottom end of the controller (4), and the bottom end of the transmission columns (2) is provided with a bottom telescopic shear plate (5) for cutting the soil sample.

5. The fully automatic three-dimensional crop root sampling device according to claim 4, characterized in that: The top of the cubic drill bit (3) is fixedly connected to a drill bit pusher (7), the top of the drill bit pusher (7) is fixedly connected to the bottom of the lifting rod (10), and the drill bit pusher (7) passes through the pusher groove (6) on the controller (4).

6. The fully automatic three-dimensional crop root sampling device according to claim 1, characterized in that: The control mechanism includes a protective housing (22) fixedly installed on the fixed frame (1). An electric motor (12) is installed inside the protective housing (22). The output end of the electric motor (12) is connected to the lifting rod (10) to provide power for the drilling of the cubic drill bit (3).

7. The fully automatic three-dimensional crop root sampling device according to claim 6, characterized in that: The protective housing (22) is equipped with a rechargeable battery pack (13), which is electrically connected to the electric motor (12), the tilt control module (18) and the depth monitoring module (8).

8. The fully automatic three-dimensional crop root sampling device according to claim 7, characterized in that: The protective housing (22) is provided with a touch screen operation panel (15), which controls the operation of the equipment through the signal transmission line (17) and power line (16) provided in the lifting rod (10).

9. The fully automatic three-dimensional crop root sampling device according to claim 8, characterized in that: The protective housing (22) is provided with several control buttons (21), which are electrically connected to the operation panel (15) and are used to control the operation of the equipment.

10. The fully automatic three-dimensional crop root sampling device according to claim 6, characterized in that: The protective shell (22) is provided with several handrails (14).

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