Soil turning device for sweet potato planting and soil turning method thereof

By introducing a soil-turning blade and a filter screen into the soil-turning device for sweet potato planting, the problem of poor soil-turning effect was solved, and soil sieving and stone crushing were achieved, thus improving the efficiency and effect of soil turning.

CN120937564APending Publication Date: 2025-11-14GUANGDONG VOCATIONAL COLLEGE OF SCI & TRADE
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Patent Information

Application Number
CN202511458578.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-13
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

Existing sweet potato planting soil turning devices cannot effectively remove stones from the soil during the turning process, resulting in poor soil turning effect, and cannot perform soil sieving at the same time as turning.

Method used

A soil-turning device for sweet potato planting was designed, equipped with soil-turning blades and a soil-filtering screen. The soil is turned by the soil-turning blades and the soil is thrown into the soil-receiving frame. The soil-filtering screen screens out the soil with smaller particle size, while larger particles and stones are confined in the soil-receiving frame to achieve sieving treatment. A small crusher is also equipped to crush large particles of soil and stones.

Benefits of technology

It improves the soil turning effect, realizes soil sieving during the turning process, avoids stone blockage and soil loss, and adapts to the turning needs of different soil thicknesses.

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Abstract

The invention discloses a soil turning device for sweet potato planting and a soil turning method thereof.The soil turning device comprises a device carrying base, two carrying wheel frames are welded to the lower end of the device carrying base, erected wheel shafts are rotatably arranged in the two carrying wheel frames in a penetrating mode, driving wheels are welded to the two sides of each erected wheel shaft, and ploughing cutter teeth are welded to the driving wheels; twenty-four ploughing cutter teeth are annularly distributed; the equipment bin is arranged in the device carrying seat, an equipment carrying frame is welded to the lower end of the equipment bin, a motor output shaft is rotatably arranged outside the equipment carrying frame in a penetrating mode, a driving gear is welded to the motor output shaft, and a linkage gear is welded to the center of the erecting wheel shaft; and the driving gear is in meshing transmission connection with the linkage gear. According to the soil turning device, field soil is sieved while soil turning is achieved, the soil turning effect on the field soil is improved, and the problem that an existing soil turning device is poor in soil turning effect is solved.
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Description

Technical Field

[0001] This invention relates to the field of soil turning devices, and in particular to a soil turning device and method for sweet potato planting. Background Technology

[0002] Sweet potato cultivation is a key technology for achieving high yield and quality through scientific management. It requires mastering core aspects such as seed selection and seedling cultivation, land preparation and fertilization, planting management, and field regulation. Before planting sweet potatoes, the soil in the field needs to be turned over with the help of a soil turning device. The main purpose is to improve soil structure, promote root development, improve nutrient absorption efficiency, and reduce the occurrence of pests and diseases. Turning the soil can reduce the competition between secondary roots and taproots for nutrients, allowing the taproots to focus more on absorbing nutrients and water, thereby improving the yield and quality of sweet potatoes.

[0003] For example, announcement number CN219108154U (named "A Portable Tillage Device for Sweet Potato Planting") includes a connecting frame. A horizontal plate is fixedly connected to the right side of the connecting frame. A water tank is fixedly connected to the right side of the bottom of the horizontal plate. A transmission box is fixedly connected to the bottom left side of the water tank. A water pump is installed at the bottom of the inner cavity of the water tank. The output end of the water pump is connected to a spray pipe. The bottom of the spray pipe extends to the bottom of the water tank and is connected to a horizontal pipe. The bottom of the horizontal pipe is connected to a spray head. A servo motor is fixedly connected to the right side of the inner wall of the transmission box. A driving bevel gear is fixedly connected to the output end of the servo motor. A driven bevel gear meshes with the bottom of the driving bevel gear. A rotary tiller blade is fixedly connected to the inner cavity of the driven bevel gear. The connecting frame is fixedly connected to the front and back sides of its bottom. A rotating rod is movably connected to the bottom of the outer side of the base frame. A fixed rod is fixedly connected to the surface of the rotating rod. A movable wheel is fixedly connected to the surface of the fixed rod. A protrusion is fixedly connected to the surface of the movable wheel. Water is drawn by a water pump and then transmitted to the inside of the spray pipe, then to the inside of the horizontal pipe, and finally to the inside of the spray head. The water is then sprayed onto the soil surface through the spray head, achieving the advantage of spraying. This solves the problem that existing sweet potato planting tillage devices do not have a spraying function. Usually, after tilling, the soil needs to be weakened and sprayed again, which is cumbersome and cannot be weakened during tilling, making it inconvenient for people to use.

[0004] The aforementioned sweet potato planting soil turning device uses a spray mechanism to simultaneously turn and water the soil. However, the soil in the field often contains many stone particles, and simply spraying water cannot effectively improve the soil turning effect, resulting in poor soil turning effect of the soil turning device. Therefore, we provide a soil turning device and soil turning method for sweet potato planting. Summary of the Invention

[0005] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0006] Another objective of this invention is to provide a soil-turning device and method for sweet potato planting, which enables the soil to be sieved while turning the soil, thereby improving the soil-turning effect and overcoming the problem of poor soil-turning effect of existing soil-turning devices.

[0007] To achieve the above objectives and some other objectives, the present invention adopts the following technical solution: A soil-turning device for sweet potato planting includes a device base. Two wheel frames are welded to the lower end of the device base. A support wheel axle is rotatably connected inside each of the two wheel frames. A drive wheel is welded to both sides of the support wheel axle. Twenty-four plowing teeth are welded to the drive wheel. Also includes: The equipment compartment is located inside the device carrier, and an equipment frame is welded to the lower end of the equipment compartment. A motor output shaft is rotatably mounted on the outside of the equipment frame. A drive gear is welded to the motor output shaft, and a linkage gear is welded to the center of the mounting axle. The drive gear and the linkage gear mesh and are connected for transmission. An extension frame is welded to the front end of the device carrier, and a front frame is welded to one end of the extension frame. A movable connecting seat is provided inside the front frame, and a threaded through hole is provided inside the movable connecting seat. A linkage screw is movably connected inside the threaded through hole. The soil turning frame is located below the linkage screw, and the soil turning frame has an inner rotating shaft inside. The outer wall of the inner rotating shaft is welded with soil turning teeth at equal intervals. The soil turning teeth are arranged in a ring of four in a group, with thirty-seven groups in total. A soil receiving frame is located at the rear end of the soil turning frame. An integrally formed guide inclined seat is formed on the inner wall of the soil receiving frame. The guide inclined seat has thirty-seven toothed grooves inside, each corresponding to one of thirty-seven sets of soil turning teeth. An integrally formed filter screen is formed at the bottom of the soil turning frame. Preferably, the inner walls on both sides of the front frame are provided with limiting grooves, and the movable connecting seat is slidably connected to the front frame through the two limiting grooves. Two sleeve seats are provided on one side of the movable connecting seat, and the two sleeve seats are integrally formed with the extension frame.

[0008] Preferably, both sleeve seats are provided with connecting springs inside, one end of the connecting spring is provided with an inner connecting rod, the inner connecting rod and the movable connecting seat are integral structures, and the two ends of the connecting spring are welded to the inner connecting rod and the extension frame respectively.

[0009] Preferably, a bearing seat is welded to the upper center of the soil turning frame, and a hook-and-loop shaft is rotatably mounted on the bearing seat. The hook-and-loop shaft is welded to the lower end of the linkage screw.

[0010] Preferably, two connecting rods are welded to the outer wall of the soil receiving frame, and a connecting plate is welded to one end of each connecting rod. The connecting plate is fixedly connected to the soil turning frame by screws.

[0011] Preferably, guide holes are provided on both sides of the threaded through hole, and both guide holes are integral with the movable connecting seat. Lifting guide rods are movably connected and raised inside both guide holes, and both lifting guide rods are integral with the soil turning frame.

[0012] Preferably, a handwheel is provided at the top of the linkage screw, and the handwheel and the linkage screw are an integral structure, with the size of the handwheel being larger than the diameter of the threaded hole.

[0013] Preferably, two extension rods are welded to one end of the device carrier, and a gripping handle is welded to one end of each extension rod.

[0014] Preferably, a rechargeable motor is fixed to one end of the soil-turning frame by screws, and a linkage pulley is provided between the rechargeable motor and the inner rotating shaft. The rechargeable motor is connected to the inner rotating shaft through the linkage pulley. A mobile power supply carrier is placed inside the equipment compartment. The equipment compartment and the equipment frame are connected. The motor output shaft and the drive motor inside the equipment frame are an integral structure.

[0015] Preferably, the soil-turning method of the aforementioned sweet potato planting soil-turning device includes the following steps: Step 1: The drive motor inside the equipment frame drives the drive gear to rotate, which in turn drives the linkage gear that meshes with it to rotate. At the same time, the linkage gear drives the frame wheel axle to rotate synchronously, so that the two drive wheels roll in the field, assisting the tilling device to move forward. Under the action of the plowing blades, the drive wheels plow the field during the rolling process. Step 2: The inner shaft is driven to rotate by a rechargeable motor, which in turn drives the soil-turning blades to rotate synchronously, turning the soil in the field. The turned soil is then scattered into the soil-receiving frame. Step 3: Smaller soil particles pass through the soil filter and are discharged from the soil receiving frame, while larger soil particles and stones are confined inside the soil receiving frame, thus sieving the field soil while turning the soil. Step 4: The soil-turning blades pass through the grooves and rotate inside the soil-receiving frame. After turning the soil, remove the screws on the connecting plate, then disassemble the soil-receiving frame and clean out any larger soil particles and stones trapped inside by the filter screen.

[0016] The present invention has at least the following beneficial effects: 1. This invention uses a rechargeable motor to drive the inner rotating shaft, which in turn drives the soil-turning blades to rotate synchronously, thus turning the soil in the field. The turned soil is scattered into the soil-receiving frame. Smaller soil particles pass through the filter screen and are discharged from the soil-receiving frame, while larger soil particles and stones are confined inside the soil-receiving frame. This process screens the soil while turning it. The soil-turning blades rotate and pass through grooves inside the soil-receiving frame. This improves the soil-turning effect without affecting the rotation of the soil-turning blades and the inner rotating shaft. It overcomes the problem that existing sweet potato planting soil-turning devices use a water spraying mechanism to water the soil while turning it, but the soil in the field often contains many stone particles, and watering alone cannot effectively improve the soil-turning effect, resulting in poor soil-turning efficiency.

[0017] 2. The drive motor inside the equipment frame drives the drive gear to rotate, which in turn drives the linkage gear that meshes with it to rotate. At the same time, the linkage gear drives the axle of the support wheel to rotate synchronously, so that the two drive wheels roll in the field, assisting the tilling device to move forward. Under the action of the plowing blades, the drive wheels plow the field while rolling, and prevent the drive wheels from sinking into the soil.

[0018] 3. The handwheel at the top of the linkage screw facilitates forward and reverse operation of the linkage screw. By rotating the linkage screw, the soil turning frame is raised and lowered, thereby adjusting the soil turning height of the soil turning frame and making adaptive adjustments according to the thickness of the field soil.

[0019] 4. A small crusher can be mounted on the device base to crush larger soil and stone particles. The crushed large soil and stone particles can be directly poured into the field, avoiding the problem of soil loss in the field during the tilling process. Attached Figure Description

[0020] Figure 1 This is a front view of the structure of the soil-turning device for sweet potato planting provided by the present invention; Figure 2 This is a rear view of the structure of the soil-turning device for sweet potato planting provided by the present invention; Figure 3 This is a top view of the structure of the soil-turning device for sweet potato planting provided by the present invention; Figure 4 This is a side view of the structure of the soil-turning device for sweet potato planting provided by the present invention; Figure 5 This is a cross-sectional view of the internal structure of the soil-turning device for sweet potato planting provided by the present invention; Figure 6 This is an enlarged schematic diagram of part A of the soil-turning device for sweet potato planting provided by the present invention; Figure 7 This is an enlarged schematic diagram of part B of the soil-turning device for sweet potato planting provided by the present invention. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can implement it after consulting this specification.

[0022] like Figure 1-7 As shown, a soil-turning device for sweet potato planting includes a device base 1. Two wheel frames 5 are welded to the lower end of the device base 1. A mounting wheel axle 8 is rotatably connected inside each of the two wheel frames 5. A drive wheel 6 is welded to both sides of the mounting wheel axle 8. Plowing teeth 7 are welded to the drive wheel 6. Twenty-four plowing teeth 7 are arranged in a ring. Also includes: The equipment compartment 4 is located inside the device carrier 1, and the lower end of the equipment compartment 4 is welded with an equipment frame 27. A motor output shaft 28 is rotatably connected to the outside of the equipment frame 27. A drive gear 10 is welded on the motor output shaft 28. A linkage gear 9 is welded at the center of the mounting wheel axle 8. The drive gear 10 and the linkage gear 9 are meshed and connected for transmission. An extension frame 11 is welded to the front end of the device carrier 1, and a front frame 12 is welded to one end of the extension frame 11. A movable connecting seat 13 is provided inside the front frame 12. A threaded through hole 26 is provided inside the movable connecting seat 13. A linkage screw 24 is movably connected inside the threaded through hole 26. The soil turning frame 14 is located below the linkage screw 24, and the soil turning frame 14 has an inner rotating shaft 15 inside for rotation. The outer wall of the inner rotating shaft 15 is welded with soil turning teeth 16 at equal intervals. The soil turning teeth 16 are arranged in a ring of four in a group of thirty-seven groups. The soil receiving frame 19 is located at the rear end of the soil turning frame 14. The inner wall of the soil receiving frame 19 is integrally formed with a guide inclined seat 33. The inside of the guide inclined seat 33 is provided with a toothed groove 34. There are thirty-seven toothed grooves 34, which correspond one-to-one with thirty-seven sets of soil turning teeth 16. The bottom of the soil turning frame 14 is integrally formed with a filter screen 31.

[0023] In the above scheme, a drive motor inside the equipment frame drives a drive gear to rotate, which in turn drives a meshing linkage gear to rotate. Simultaneously, the linkage gear rotates, causing the mounting axle to rotate synchronously, making the two drive wheels roll in the field, assisting the tilling device in its movement. Under the action of the plowing blades, the drive wheels plow the field while simultaneously turning over the soil on both sides, preventing the drive wheels from sinking into the soil. During the movement of the tilling device, a rechargeable motor drives the inner shaft to rotate, which in turn drives the tilling blades to rotate synchronously, turning over the soil in the field. The turned soil is thrown into the receiving frame. Smaller soil particles pass through a filter screen and are discharged from the receiving frame, while larger soil particles and stones are trapped inside the receiving frame. Thus, while turning the soil, the device also turns over the soil... The soil is sieved, and the turning blades rotate and interlock inside the soil receiving frame through the tooth grooves. This improves the soil turning effect without affecting the rotation of the turning blades and the inner shaft. After turning is completed, the screws on the connecting plate are removed, and the soil receiving frame is disassembled. Larger soil particles and stones trapped inside by the filter screen are cleaned out, preventing the accumulation of large soil particles and stones from clogging the receiving frame. This improves the sustainability of the soil turning device in sieving the field soil while turning. A small crusher can be mounted on the device base to crush larger soil particles and stones. The crushed large soil particles and stones can be directly poured into the field, avoiding soil loss during the turning process. The height of the turning frame is adjustable to adapt to different soil levels and terrains in the field.

[0024] In a preferred embodiment, limiting grooves 36 are provided on both inner walls of the front frame 12. The movable connecting seat 13 is slidably connected to the front frame 12 through the two limiting grooves 36. Two sleeve seats 29 are provided on one side of the movable connecting seat 13. Both sleeve seats 29 are integral with the extension frame 11.

[0025] In the above scheme, the limiting grooves provided on both inner walls of the front frame serve to assist the movable connecting seat in limiting and guiding its sliding within the front frame, and the two sleeve seats provided on one side of the movable connecting seat serve to support the two connecting springs.

[0026] In a preferred embodiment, each of the two sleeve seats 29 is provided with a connecting spring 38. One end of the connecting spring 38 is provided with an inner connecting rod 30. The inner connecting rod 30 and the movable connecting seat 13 are integrally structured. The two ends of the connecting spring 38 are welded to the inner connecting rod 30 and the extension frame 11, respectively.

[0027] In the above scheme, the connecting springs installed inside both sleeve seats play the role of elastically connecting the movable connecting seat and the extension frame, thereby reducing the impact force of the soil turning frame on the device carrier during the soil turning process.

[0028] In a preferred embodiment, a bearing seat 22 is welded to the upper center of the soil turning frame 14, and a hook-and-loop shaft 23 is rotatably mounted on the bearing seat 22. The hook-and-loop shaft 23 is welded to the lower end of the linkage screw 24.

[0029] In the above scheme, the bearing seat welded at the upper center of the soil turning frame plays the role of assisting in the anti-detachment rotational connection between the rotating shaft and the soil turning frame, thereby driving the soil turning frame to move up and down synchronously while the linkage screw is moving up and down.

[0030] In a preferred embodiment, two connecting rods 20 are welded to the outer wall of the soil receiving frame 19. A connecting plate 35 is welded to one end of each connecting rod 20. The connecting plate 35 is fixedly connected to the soil turning frame 14 by screws.

[0031] In the above scheme, the two connecting rods welded to the outer wall of the soil receiving frame serve to assist in the erection and connection of the soil receiving frame. The connecting plate welded to one end of each of the two connecting rods serves to facilitate the installation of screws to fix the soil receiving frame and the soil turning frame together.

[0032] In a preferred embodiment, guide holes 37 are provided on both sides of the threaded through hole 26. Both guide holes 37 are integral with the movable connecting seat 13. Lifting guide rods 21 are movably connected and raised inside both guide holes 37. Both lifting guide rods 21 are integral with the soil turning frame 14.

[0033] In the above scheme, the guide holes set on both sides of the threaded through hole serve to assist the two lifting guide rods in their lifting and lowering movement inside the movable connecting seat, thereby achieving the purpose of assisting the lifting and lowering guidance movement of the soil turning frame.

[0034] In a preferred embodiment, a handwheel 25 is provided on the top of the linkage screw 24. The handwheel 25 and the linkage screw 24 are an integral structure, and the size of the handwheel 25 is larger than the diameter of the threaded through hole 26.

[0035] In the above scheme, the handwheel at the top of the linkage screw facilitates the forward and reverse operation of the linkage screw. By rotating the linkage screw, the soil turning frame is driven to move up and down, thereby adjusting the soil turning ground height of the soil turning frame.

[0036] In a preferred embodiment, two extension rods 2 are welded to one end of the device carrier 1, and a gripping handle 3 is welded to one end of each extension rod 2.

[0037] In the above scheme, two extension rods welded to one end of the device carrier serve to support the gripping handle, facilitating the movement of the soil-tilling device by gripping the handle.

[0038] In a preferred embodiment, a rechargeable motor 17 is fixed to one end of the soil-turning frame 14 by screws. A linkage pulley 18 is provided between the rechargeable motor 17 and the inner rotating shaft 15. The rechargeable motor 17 is connected to the inner rotating shaft 15 through the linkage pulley 18. A mobile power supply carrier 32 is placed inside the equipment compartment 4. The equipment compartment 4 is connected to the equipment frame 27. The motor output shaft 28 and the drive motor inside the equipment frame 27 are an integral structure.

[0039] In the above scheme, a rechargeable motor fixed to one end of the soil-turning frame with screws drives the inner rotating shaft to rotate. The rotation of the inner rotating shaft drives the soil-turning blades to rotate, thus turning the soil in the field. The rechargeable motor is a motor with a built-in battery, model: AEV200-DC720M12. The mobile power supply carrier inside the equipment compartment supports the mobile power supply. After the mobile power supply is installed in the equipment compartment, it continuously supplies power to the drive motor inside the equipment frame, thereby enabling the drive motor to drive the drive gear to rotate. The drive gear rotates and the linkage gear meshing with it rotates, which in turn drives the frame axle and the two drive wheels to rotate, thus moving the soil-turning device forward.

[0040] The method of turning the soil using a soil-turning device for sweet potato planting includes the following steps: Step 1: The drive motor inside the equipment frame 27 drives the drive gear 10 to rotate. After the drive gear 10 rotates, it drives the linkage gear 9 that meshes with it to rotate. At the same time, the linkage gear 9 drives the frame wheel axle 8 to rotate synchronously, so that the two drive wheels 6 roll in the field, assisting the soil turning device to move forward. Under the action of the plowing blade teeth 7, the drive wheels 6 plow the field during the rolling process. Step 2: The inner rotating shaft 15 is driven to rotate by the rechargeable motor 17, which in turn drives the soil turning blade 16 to rotate synchronously, turning the soil in the field. The turned soil is then scattered into the soil receiving frame 19. Step 3: Smaller soil particles pass through the soil filter 31 and are discharged from the soil receiving frame 19, while larger soil particles and stones are confined inside the soil receiving frame 19, thus sieving the field soil while turning the soil. Step 4: The turning blade 16 passes through the blade groove 34 and rotates inside the soil receiving frame 19. After turning is completed, remove the screws on the connecting plate 35, then remove the soil receiving frame 19 and clean out the larger soil particles and stones that are trapped inside by the filter screen 31.

[0041] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A soil turning device for sweet potato planting, comprising a device base, two wheel frames welded to the lower end of the device base, a support wheel axle rotatably mounted inside each of the two wheel frames, drive wheels welded to both sides of the support wheel axle, and plowing teeth welded to the drive wheels, the plowing teeth being arranged in a ring of twenty-four. Its features are: Also includes: The equipment compartment is located inside the device carrier, and an equipment frame is welded to the lower end of the equipment compartment. A motor output shaft is rotatably mounted on the outside of the equipment frame. A drive gear is welded to the motor output shaft, and a linkage gear is welded to the center of the mounting axle. The drive gear and the linkage gear mesh and are connected for transmission. An extension frame is welded to the front end of the device carrier, and a front frame is welded to one end of the extension frame. A movable connecting seat is provided inside the front frame, and a threaded through hole is provided inside the movable connecting seat. A linkage screw is movably connected inside the threaded through hole. The soil turning frame is located below the linkage screw, and the soil turning frame has an inner rotating shaft inside. The outer wall of the inner rotating shaft is welded with soil turning teeth at equal intervals. The soil turning teeth are arranged in a ring of four in a group, with thirty-seven groups in total. The soil receiving frame is located at the rear end of the soil turning frame, and an integrally formed guide inclined seat is provided on the inner wall of the soil receiving frame. The guide inclined seat has a toothed groove inside, with thirty-seven toothed grooves. The thirty-seven toothed grooves correspond one-to-one with thirty-seven sets of soil turning teeth. An integrally formed filter screen is provided at the bottom of the soil turning frame.

2. The soil-turning device for sweet potato planting as described in claim 1, characterized in that, Limiting grooves are provided on both inner walls of the front frame. The movable connecting seat is slidably connected to the front frame through the two limiting grooves. Two sleeve seats are provided on one side of the movable connecting seat, and both sleeve seats are integral with the extension frame.

3. The soil-turning device for sweet potato planting as described in claim 2, characterized in that, Both sleeve seats are equipped with connecting springs inside. One end of the connecting spring is equipped with an inner connecting rod. The inner connecting rod and the movable connecting seat are integrally formed. The two ends of the connecting spring are welded to the inner connecting rod and the extension frame, respectively.

4. The soil-turning device for sweet potato planting as described in claim 3, characterized in that, A bearing seat is welded to the upper center of the soil turning frame, and a hook-and-loop shaft is rotatably mounted on the bearing seat. The hook-and-loop shaft is welded to the lower end of the linkage screw.

5. The soil-turning device for sweet potato planting as described in claim 4, characterized in that, Two connecting rods are welded to the outer wall of the soil receiving frame. A connecting plate is welded to one end of each connecting rod, and the connecting plate is fixedly connected to the soil turning frame by screws.

6. The soil-turning device for sweet potato planting as described in claim 5, characterized in that, Guide holes are provided on both sides of the threaded through hole. Both guide holes are integrated with the movable connecting seat. Lifting guide rods are movably connected and raised inside both guide holes. Both lifting guide rods are integrated with the soil turning frame.

7. The soil-turning device for sweet potato planting as described in claim 6, characterized in that, A handwheel is provided at the top of the linkage screw. The handwheel and the linkage screw are an integral structure, and the size of the handwheel is larger than the diameter of the threaded hole.

8. The soil-turning device for sweet potato planting as described in claim 7, characterized in that, Two extension rods are welded to one end of the device carrier, and a gripping handle is welded to one end of each extension rod.

9. The soil-turning device for sweet potato planting as described in claim 8, characterized in that, One end of the soil-turning frame is fixed with a rechargeable motor by screws. A linkage pulley is provided between the rechargeable motor and the inner rotating shaft. The rechargeable motor is connected to the inner rotating shaft through the linkage pulley. A mobile power supply carrier is placed inside the equipment compartment. The equipment compartment and the equipment frame are connected. The motor output shaft and the drive motor inside the equipment frame are an integrated structure.

10. The method for turning soil using the soil-turning device for sweet potato planting as described in claim 9, characterized in that, Includes the following steps: Step 1: The drive motor inside the equipment frame drives the drive gear to rotate, which in turn drives the linkage gear that meshes with it to rotate. At the same time, the linkage gear drives the frame wheel axle to rotate synchronously, so that the two drive wheels roll in the field, assisting the tilling device to move forward. Under the action of the plowing blades, the drive wheels plow the field during the rolling process. Step 2: The inner shaft is driven to rotate by a rechargeable motor, which in turn drives the soil-turning blades to rotate synchronously, turning the soil in the field. The turned soil is then scattered into the soil-receiving frame. Step 3: Smaller soil particles pass through the soil filter and are discharged from the soil receiving frame, while larger soil particles and stones are confined inside the soil receiving frame, thus sieving the field soil while turning the soil. Step 4: The soil-turning blades pass through the grooves and rotate inside the soil-receiving frame. After turning the soil, remove the screws on the connecting plate, then disassemble the soil-receiving frame and clean out any larger soil particles and stones trapped inside by the filter screen.

Citation Information

Patent Citations

  • Portable soil turning device for sweet potato planting

    CN219108154U