Weed removing device for corn planting field
By combining the cutting component and the soil-turning claw with the crushing component, the problem of existing devices being unable to completely remove weed roots is solved, achieving efficient weed removal, reducing regeneration, and improving the corn growing environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GIANT WHALE BIOTECHNOLOGY (YUNNAN) CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-05
AI Technical Summary
Existing mechanized weeding devices are unable to completely remove the roots and residual tissues of weeds, leading to weed regeneration and affecting corn growth.
By combining the cutting component and the soil-turning claw with the crushing component, the above-ground part of the weeds is cut off and the soil is loosened. The crushing component thoroughly crushes the roots of the weeds.
It significantly improves the thoroughness of weed removal, reduces the possibility of weed regrowth, avoids adverse effects on normal corn growth, and improves work efficiency and comfort.
Smart Images

Figure CN224192436U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a weed removal device for corn planting fields. Background Technology
[0002] In modern agricultural production, weed control is a crucial step in ensuring the healthy growth of crops. This is especially true for corn cultivation, where weeds compete with corn for nutrients, water, and sunlight, severely impacting corn yield and quality.
[0003] Currently, weed control in fields mainly relies on manual weeding or mechanized weeding devices. However, existing mechanized weeding devices typically only use simple cutting methods to treat weeds. While this method can remove the above-ground parts of the weeds, it is difficult to completely remove the roots and their remaining tissues. Because the weed roots are not completely removed, the remaining root systems in the soil can easily regrow, causing the weeds to grow again, thus weakening the weeding effect and adversely affecting the normal growth of corn. Utility Model Content
[0004] To overcome the problem that existing weeding devices in the background art rely solely on simple cutting methods to treat weeds, making it difficult to thoroughly remove the roots and residual parts of weeds, this utility model provides a weed removal device for corn planting fields. Through the synergistic action of the cutting component and the soil-turning claw, combined with the efficient crushing function of the crushing component, it can not only effectively cut off the above-ground part of the weeds and crush it, but also penetrate deep into the soil to loosen and lift the weed roots, exposing them to the soil surface and crushing them through the crushing component. This significantly improves the thoroughness of weed removal, reduces the possibility of weed regeneration, and avoids adverse effects on the normal growth of corn.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A weed removal device for corn planting fields mainly includes an operating rod, a main control handle, an auxiliary handle, a mounting housing, a protective cover, a cutting component, a soil-turning claw, a transmission shaft, a motor, a lithium battery, and a crushing component. The top of the operating rod is fixedly connected to the main control handle, and a button switch is provided on the outer wall of the main control handle. The auxiliary handle is vertically installed on the upper part of the operating rod and fastened with bolts. The bottom end of the operating rod is fixedly connected to the mounting housing through a flange. A protective cover is installed at the bottom of the mounting housing, and a motor and a lithium battery electrically connected to it are installed inside. The button switch is electrically connected to the motor through a wire. The transmission shaft is installed at the bottom of the mounting housing through a bearing, and its top end penetrates the mounting housing and is connected to the output shaft of the motor through a coupling. The cutting component is installed at the bottom of the transmission shaft and located inside the protective cover. The soil-turning claw is evenly distributed at the bottom of the cutting component. The crushing component is sleeved on the transmission shaft and fixed with screws.
[0006] The cutting assembly includes a rotating disk and cutting blades. The rotating disk has a circular structure and its center is fixedly connected to the drive shaft via a keyway. The cutting blades are evenly distributed on the outer edge of the rotating disk and fixedly connected to the rotating disk with bolts. The cutting edge of the cutting blades is arc-shaped. The soil-turning claws are evenly welded to the bottom of the rotating disk, with their teeth pointing downwards and having a conical shape, which can penetrate deep into the soil to loosen the roots of weeds.
[0007] The crushing assembly includes a connecting disc, a connecting sleeve, and a first crushing blade. The connecting sleeve is fitted onto the drive shaft and fixed with screws. Multiple connecting discs are equidistantly arranged along the axial direction of the connecting sleeve. Multiple first crushing blades are evenly arranged on the edge of each connecting disc. Multiple sets of second crushing blades are equidistantly arranged along the circumferential direction on the inner wall of the protective cover. Each set of second crushing blades is equidistantly distributed along the axial direction of the protective cover and is staggered with the first crushing blades to form a multi-layer crushing effect, thereby achieving thorough crushing of the roots and residual parts of weeds.
[0008] The control lever is equipped with a guide bracket in the middle, and a connecting shaft is set at the bottom of the guide bracket. A rotatable auxiliary wheel is installed at the end of the connecting shaft. The auxiliary wheel can rotate flexibly with the movement of the control lever, ensuring that the device maintains stable operation when working in the field, while reducing the physical exertion of the operator and improving the comfort of operation.
[0009] The beneficial effects of this utility model are:
[0010] This invention, through the synergistic action of the cutting component and the soil-turning claw, combined with the efficient crushing function of the crushing component, can not only effectively cut off the above-ground part of the weeds and crush it, but also penetrate deep into the soil to loosen and lift the roots of the weeds, exposing them to the soil surface and crushing them through the crushing component. This significantly improves the thoroughness of weed removal, reduces the possibility of weed regeneration, and avoids adverse effects on the normal growth of corn. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0012] Figure 2 This is a partial cross-sectional perspective view of the present invention.
[0013] Figure 3 This is a partial sectional front view of the present invention.
[0014] Figure 4 This is the left view of this utility model.
[0015] Figure 5 This is a three-dimensional structural diagram of the cutting and crushing components.
[0016] Figure 6 This is a schematic diagram of the three-dimensional structure of the protective cover and the second crushing blade.
[0017] The reference numerals in the attached diagram are as follows: 1. Operating lever; 2. Main control handle; 3. Auxiliary handle; 4. Mounting housing; 5. Protective cover; 6. Cutting assembly; 7. Soil-turning claw; 8. Drive shaft; 9. Motor; 10. Lithium battery; 11. Crushing assembly; 12. Connecting disc; 13. Rotating disc; 14. Cutting blade; 15. Connecting sleeve; 16. First crushing blade; 17. Second crushing blade; 18. Guide bracket; 19. Connecting shaft; 20. Auxiliary wheel. Detailed Implementation
[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.
[0019] This utility model discloses a weed removal device for corn planting fields. The device mainly includes an operating lever 1, a main control handle 2, an auxiliary handle 3, a mounting housing 4, a protective cover 5, a cutting component 6, a soil-turning claw 7, a transmission shaft 8, a motor 9, a lithium battery 10, and a crushing component 11. Figure 1 , Figure 2 As shown, the operating lever 1 is the main support structure of the entire device. The top of the lever is fixedly connected to the main control handle 2. A button switch is installed on the outer wall of the main control handle 2 to control the start and stop of the motor 9. The auxiliary handle 3 is vertically installed on the upper part of the operating lever 1 and is fastened with bolts, making it easy for the operator to hold it with both hands to maintain balance. The bottom of the operating lever 1 is fixedly connected to the mounting housing 4 through a flange. The motor 9 and the lithium battery 10 electrically connected to it are installed inside the lever 1. The lithium battery 10 provides power to the motor 9. The button switch is electrically connected to the motor 9 through wires to realize the start and stop control of the motor 9. The use of the lithium battery 10 improves the portability of the device, allowing it to work for a long time without relying on an external power source.
[0020] like Figure 3 As shown, a protective cover 5 is installed at the bottom of the mounting housing 4. The protective cover 5 not only protects the operator from weed debris, but also effectively prevents weed debris from flying everywhere, thereby reducing the impact on the surrounding environment. The drive shaft 8 is installed at the bottom of the mounting housing 4 through bearings. Its top end passes through the mounting housing 4 and is connected to the output shaft of the motor 9 through a coupling, thereby transmitting the power of the motor 9 to the cutting component 6 and the crushing component 11. The cutting component 6 is installed at the bottom of the drive shaft 8 and is located inside the protective cover 5. The soil-turning claws 7 are evenly distributed at the bottom of the cutting component 6 and are used to penetrate the soil and loosen the roots of weeds. The crushing component 11 is sleeved on the drive shaft 8 and fixed with screws. Its function is to thoroughly crush the roots and residual parts of weeds.
[0021] The structure of cutting component 6 is as follows Figure 5As shown, the device includes a rotating disk 13 and cutting blades 14. The rotating disk 13 has a circular structure, and its center is fixedly connected to the drive shaft 8 via a keyway. The cutting blades 14 are evenly distributed on the outer edge of the rotating disk 13 and are fixedly connected to the rotating disk 13 with bolts. The cutting edge of the cutting blades 14 is arc-shaped, which can effectively cut the above-ground part of the weeds. The soil-turning claws 7 are evenly welded to the bottom of the rotating disk 13. Their teeth point downwards and are conical in shape, which can penetrate deep into the soil to loosen the roots of the weeds, thereby improving the thoroughness of weed removal.
[0022] The structure of the crushing component 11 is as follows Figure 5 As shown, the device includes a connecting disc 12, a connecting sleeve 15, and a first crushing blade 16. The connecting sleeve 15 is fitted onto the drive shaft 8 and fixed with screws. Multiple connecting discs 12 are equidistantly arranged along the axial direction of the connecting sleeve 15, and multiple first crushing blades 16 are evenly arranged on the edge of each connecting disc 12. Multiple sets of second crushing blades 17 are equidistantly arranged along the circumferential direction on the inner wall of the protective cover 5. Each set of second crushing blades 17 is equidistantly distributed along the axial direction of the protective cover 5 and is staggered with the first crushing blades 16 to form a multi-layer crushing effect. This device can efficiently crush the roots and residual parts of weeds, significantly reducing the possibility of weed regeneration.
[0023] To ensure the stability and flexibility of the device during field operations, a guide bracket 18 is installed in the middle of the operating lever 1, such as... Figure 1 As shown, a connecting shaft 19 is provided at the bottom of the guide bracket 18, and a rotatable auxiliary wheel 20 is installed at the end of the connecting shaft 19. The auxiliary wheel 20 can rotate flexibly with the movement of the operating lever 1, which can not only maintain the stability of the device when it is running in the field, but also reduce the physical exertion of the operator and improve the comfort of the operation.
[0024] In summary, this utility model, through the synergistic effect of the cutting component 6 and the soil-turning claw 7, combined with the efficient crushing function of the crushing component 11, can not only effectively cut off the above-ground part of the weeds, but also penetrate deep into the soil to loosen and crush the roots of the weeds, significantly improving the weed removal effect and further reducing the possibility of weed regeneration. At the same time, through the design of the guide bracket 18 and the auxiliary wheel 20, the stability and flexibility of the device during field operation are ensured, further improving the work efficiency.
[0025] Work process:
[0026] In practical applications, the operator holds the main control handle 2 and the auxiliary handle 3 with both hands, moves the device to the cornfield where weeds need to be removed, and then presses the button switch on the main control handle 2 to start the drive motor 9. The drive motor 9 drives the transmission shaft 8 to rotate through the coupling. The transmission shaft 8 transmits power to the rotating disk of the cutting assembly 6, causing the rotating disk 13 and its cutting blades 14 and soil-turning claws 7 to start rotating at high speed. At the same time, the operator controls the conical teeth of the soil-turning claws 7 to penetrate into the soil surface through the operating lever 1. Under the action of the rotation of the rotating disk 13, the soil-turning claws 7 peel and turn the roots of the weeds from the soil. At the same time, the rotating cutting blades 14 perform preliminary weed removal on the stems and leaves. The cut weed stems and leaves, along with the upturned roots, are spun into the protective cover 5. The relative movement of the first shredder 16 of the shredder assembly 10 and the second shredder 17 on the inner wall of the protective cover 5 creates shearing force, resulting in multi-layered shredding of the weeds. The staggered arrangement of the first and second shredders creates a multi-layered shredding zone that effectively removes the weeds, reducing the likelihood of regeneration. The shredded weed residue falls onto the soil surface through the opening at the bottom of the protective cover 5, improving soil fertility. The design of the guide bracket 11 and auxiliary wheels 12 enhances the operational stability of the device and reduces the workload of the operators.
[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.
Claims
1. A weed removal device for corn planting fields, characterized in that: The aforementioned weed removal device for corn planting fields includes an operating rod (1), a main control handle (2), an auxiliary handle (3), a mounting housing (4), a protective cover (5), a cutting component (6), a soil-turning claw (7), a drive shaft (8), a motor (9), a lithium battery (10), and a crushing component (11). The main control handle (2) is fixedly connected to the top of the operating rod (1), and a button switch is provided on the outer wall of the main control handle (2). The auxiliary handle (3) is vertically installed on the upper part of the operating rod (1) and fastened with bolts. The bottom end of the operating rod (1) is fixedly connected to the mounting housing (4) through a flange. A protective cover (5) is installed at the bottom of the housing (4), and a motor (9) and a lithium battery (10) electrically connected to it are installed inside. The push-button switch is electrically connected to the motor (9) through a wire. The drive shaft (8) is installed at the bottom of the housing (4) through a bearing. Its top end passes through the housing (4) and is connected to the output shaft of the motor (9) through a coupling. The cutting component (6) is installed at the bottom of the drive shaft (8) and is located inside the protective cover (5). The soil turning claws (7) are evenly distributed at the bottom of the cutting component (6). The crushing component (11) is sleeved on the drive shaft (8) and fixed with screws.
2. The weed removal device for corn planting fields as described in claim 1, characterized in that: The cutting assembly (6) includes a rotating disk (13) and a cutting blade (14). The rotating disk (13) is a circular structure, and its center is fixedly connected to the drive shaft (8) through a keyway. The cutting blade (14) is evenly distributed on the outer edge of the rotating disk (13) and fixedly connected to the rotating disk (13) with bolts. The cutting edge of the cutting blade (14) is arc-shaped. The soil turning claw (7) is evenly welded to the bottom of the rotating disk (13), and its tooth tip faces downward and is conical in shape.
3. A weed removal device for corn planting fields as described in claim 1 or 2, characterized in that: The crushing assembly (11) includes a connecting plate (12), a connecting sleeve (15), and a first crushing blade (16). The connecting sleeve (15) is fitted onto the drive shaft (8) and fixed with screws. Multiple connecting plates (12) are equidistantly arranged along the axial direction of the connecting sleeve (15). Multiple first crushing blades (16) are evenly arranged on the edge of each connecting plate (12). Multiple sets of second crushing blades (17) are equidistantly arranged along the circumferential direction on the inner wall of the protective cover (5). Each set of second crushing blades (17) is equidistantly distributed along the axial direction of the protective cover (5) and is staggered with the first crushing blades (16).
4. The weed removal device for corn planting fields as described in claim 3, characterized in that: The operating lever (1) is equipped with a guide bracket (18) in the middle, and a connecting shaft (19) is provided at the bottom of the guide bracket (18). A rotatable auxiliary wheel (20) is installed at the end of the connecting shaft (19).