Automatic weeding device for farmland

Through the design of servo motor drive gear linkage system and vacuum cleaner, the problem of inconvenient disassembly and assembly of cutting blades in existing weeding devices is solved, the rapid installation of cutting pieces and efficient cleaning of weed dust is achieved, and the efficiency and convenience of weeding operations are improved.

CN223261948UActive Publication Date: 2025-08-26常红梅
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Patent Information

Application Number
CN202422492545.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-15
Publication Date
2025-08-26
Estimated Expiration
2034-10-15

AI Technical Summary

Technical Problem

In existing weeding devices, the cutting blades are fixed by multiple bolts, which leads to inconvenience in disassembly and difficult to replace quickly.

Method used

The servo motor drive gear linkage system is adopted, combined with the design of limit slots and connecting columns, and the cutting sheet is quickly installed through bolts; it is also equipped with a vacuum cleaner and a filtering system to achieve efficient cleaning of weeds and dust.

Benefits of technology

It realizes rapid disassembly and efficient cleaning of cutting pieces, improves the efficiency and convenience of weeding operations, and ensures the stability and cleanliness of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of farmland weeding devices, and discloses an automatic farmland weeding device which comprises a weeding trolley, the top of the weeding trolley is fixedly connected with an installation frame, the top of the installation frame is fixedly connected with a servo motor, and the output end of the servo motor penetrates through the top of the installation frame and is fixedly connected with a first gear. Second gears are connected to the front side and the rear side of the top of the weeding vehicle, rotating shafts are rotatably connected to the bottoms of the two second gears, the bottom ends of the rotating shafts penetrate through the top of the weeding vehicle and are fixedly connected with a first mounting plate, and inserting holes are formed in the periphery of the bottom of the first mounting plate. According to the device, the cutting blade is rapidly positioned through the limiting grooves in the second mounting plate, the connecting holes in the cutting blade are slidably mounted through the connecting columns, the connecting columns are inserted into the inserting holes, the first mounting plate and the second mounting plate are reinforced by rotating the bolts, and the whole mounting process is more convenient and simpler.
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Description

Technical Field

[0001] The utility model relates to the technical field of farmland weeding devices, in particular to an automatic weeding device for farmland. Background Art

[0002] The emergence of lawn mowers has made great contributions to the development of agricultural mechanization, improving work efficiency and increasing agricultural production efficiency. It is particularly important in a major agricultural country like ours. As a tool that plays an important role in agricultural production, the lawn mower has the most direct impact on crop yields. Its invention is a major advancement in human civilization and has realized automated farmland weeding.

[0003] When cleaning the lawn or clearing weeds in the field, it is necessary to use a weeding device to trim and weed. At the same time, the process of trimming and weeding can also inhibit the flowering and fruiting of lawn weeds, so that the weeds lose the opportunity to reproduce and gradually eliminate the weeds.

[0004] However, most existing weeding devices use multiple bolts to fix the cutting blades, which is very time-consuming and labor-intensive during maintenance and disassembly, making it inconvenient to quickly disassemble and replace them. Therefore, an automated weeding device for farmland is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an automatic weeding device for farmland, aiming to improve the problem in the prior art that most cutting blades are fixed and installed by multiple bolts, which is not convenient for quick disassembly, assembly and replacement.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an automated weeding device for farmland, comprising a weeding vehicle, the top of the weeding vehicle is fixedly connected to a mounting frame, the top of the mounting frame is fixedly connected to a servo motor, the output end of the servo motor passes through the top of the mounting frame and is fixedly connected to gear 1, the front and rear sides of the top of the weeding vehicle are connected to gear 2, the bottoms of the two gears 2 are rotatably connected to a rotating shaft, the bottom end of the rotating shaft passes through the top of the weeding vehicle and is fixedly connected to a mounting plate 1, and the bottom of the mounting plate 1 is provided with plug holes on all sides. , the interiors of the multiple plug-in holes are slidably connected with connecting columns, the bottom ends of the multiple connecting columns are fixedly connected to the mounting plate 2, the top of the mounting plate 2 is provided with limiting grooves all around, the interiors of the multiple limiting grooves are slidably connected with cutting blades, the tops of the multiple cutting blades are provided with connecting holes, the inner walls of the multiple connecting holes are slidably connected to the outer walls of the connecting columns, the bottom of the mounting plate 2 is threadedly connected with a bolt, the top of the bolt passes through the bottom of the mounting plate 2 and is threadedly connected to the bottom of the mounting plate 1, and a cleaning mechanism is provided on the top right side of the weeding vehicle.

[0007] As a further description of the above technical solution:

[0008] The cleaning mechanism includes a vacuum cleaner, the bottom of which is fixedly connected to the top of the lawn mower, one end of the vacuum cleaner is connected to a connecting pipe, the other end of the connecting pipe is connected to a recovery box, a filter plate is slidably connected to the top front side of the recovery box, the right side of the recovery box is connected to a dust suction pipe, and the other end of the dust suction pipe is connected to a dust suction head.

[0009] As a further description of the above technical solution:

[0010] The cleaning mechanism further comprises a plurality of reinforcing plates, the bottoms of which are all fixedly connected to the top of the dust collector head.

[0011] As a further description of the above technical solution:

[0012] A push rod is fixedly connected to the right side of the top of the weeding vehicle, and an anti-slip sleeve is fixedly connected to the outer wall of the push rod.

[0013] As a further description of the above technical solution:

[0014] The four sides of the weeding vehicle are rotatably connected with wheels, and the outer walls of the multiple wheels are provided with wear-resistant layers.

[0015] As a further description of the above technical solution:

[0016] A connecting plate is fixedly connected to the left side of the weeding vehicle, and a baffle is fixedly connected to the left side of the connecting plate.

[0017] As a further description of the above technical solution:

[0018] A headlight is fixedly connected to the left side of the top of the lawn mower, and a protective cover is fixedly connected to the top of the two headlights.

[0019] As a further description of the above technical solution:

[0020] A controller is fixedly connected to the top of the lawn mower, and the controller is electrically connected to the vacuum cleaner, the servo motor and the headlights respectively.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the servo motor is started to drive the gear 1 to rotate at high speed, and at the same time the gear 2 is engaged with the front and rear sides of the gear 1 to realize linkage rotation. The cutting blade is quickly positioned by the limit groove on the mounting plate 2, and the connecting hole on the cutting blade is slidably installed by the connecting column. The mounting plate 1 and the mounting plate 2 are merged with each other, and the connecting column is inserted into the plug hole. The mounting plate 1 and the mounting plate 2 are reinforced by rotating the bolt, and the whole installation process is more convenient and simple.

[0023] 2. In the utility model, negative pressure is generated inside the recycling box by starting the vacuum cleaner, and the cut weeds and dust are transported through the vacuum pipe by cooperating with the vacuum head. The vacuum pipe ensures that weeds and dust can enter the recycling box smoothly and unimpeded, and the dust is filtered by the filter plate, which can effectively intercept and filter out the inhaled dust and fine particles, ensuring that the discharged gas is clean and harmless, and the excess gas is discharged through the vacuum cleaner, so that the weeds and dust can be sucked into the vacuum pipe together while weeding quickly, making the weeding operation easier and faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of an automatic weeding device for farmland proposed by the utility model;

[0025] Figure 2 This is a front view of an automatic weeding device for farmland proposed by the utility model;

[0026] Figure 3 This is a schematic structural diagram of a cleaning mechanism of an automated weeding device for farmland proposed in the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of a driving component of an automatic weeding device for farmland proposed by the present invention;

[0028] Figure 5 This is a disassembled diagram of an automatic weeding device for farmland proposed by the utility model.

[0029] Legend:

[0030] 1. Lawn mower; 2. Cleaning mechanism; 201. Vacuum cleaner; 202. Connecting pipe; 203. Recycling box; 204. Filter plate; 205. Vacuum pipe; 206. Vacuum head; 207. Reinforcement plate; 3. Mounting bracket; 4. Servo motor; 5. Gear 1; 6. Gear 2; 7. Rotating shaft; 8. Mounting plate 1; 9. Connecting hole; 10. Connecting column; 11. Mounting plate 2; 12. Limiting groove; 13. Cutting blade; 14. Connecting hole; 15. Bolt; 16. Controller; 17. Push rod; 18. Anti-slip sleeve; 19. Wheel; 20. Wear-resistant layer; 21. Connecting plate; 22. Baffle; 23. Protective cover; 24. Headlight. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 、 Figure 4 and Figure 5The utility model provides an embodiment of an automatic weeding device for farmland, including a weeding vehicle 1, a mounting frame 3 is fixedly connected to the top of the weeding vehicle 1, a servo motor 4 is fixedly connected to the top of the mounting frame 3, the output end of the servo motor 4 passes through the top of the mounting frame 3 and is fixedly connected to a gear 1 5, the front and rear sides of the top of the weeding vehicle 1 are connected to gear 2 6, the bottoms of the two gears 2 6 are rotatably connected to a rotating shaft 7, and the servo motor 4 is started to drive the gear 1 5 to rotate at high speed, while the gear 2 6 is meshed with the front and rear sides of the gear 1 5 to achieve linkage rotation, the bottom end of the rotating shaft 7 passes through the top of the weeding vehicle 1 and is fixedly connected to a mounting plate 1 8, the bottom of the mounting plate 1 8 is provided with plug holes 9 all around, the interiors of the multiple plug holes 9 are slidably connected to connecting columns 10, the bottom ends of the multiple connecting columns 10 are fixedly connected to the mounting plate 2 11, the top four Limiting grooves 12 are provided around the periphery, and cutting blades 13 are slidably connected inside the plurality of limiting grooves 12. Connecting holes 14 are provided on the tops of the plurality of cutting blades 13. The inner walls of the plurality of connecting holes 14 are slidably connected to the outer walls of the connecting column 10. The cutting blade 13 is quickly positioned through the limiting grooves 12 on the mounting plate 2 11, and the connecting holes 9 on the cutting blade 13 are slidably installed through the connecting column 10, and the mounting plate 1 8 and the mounting plate 2 11 are merged with each other, and the connecting column 10 is inserted into the plug hole 9. The bottom of the mounting plate 2 11 is threadedly connected with a bolt 15, and the top of the bolt 15 passes through the bottom of the mounting plate 2 11 and is threadedly connected to the bottom of the mounting plate 1 8, and the mounting plate 1 8 and the mounting plate 2 11 are reinforced by rotating the bolt 15. The whole installation process is more convenient and simple. A cleaning mechanism 2 is provided on the top right side of the lawn mower 1;

[0033] Specifically, a mounting frame 3 is fixedly connected to the top of the weeding vehicle 1. The mounting frame 3 serves as a supporting structure to ensure that it can firmly carry various components that are installed subsequently. The top of the mounting frame 3 is also fixedly connected to a servo motor 4 in a fastening manner. The servo motor 4 serves as a power source. Its selection basis is the power, speed and working environment factors required by the weeding device. The output end of the servo motor 4 is precisely machined to ensure that it can accurately pass through the top of the mounting frame 3 and achieve a firm connection with the gear 1 5. The gear 1 5 is a key component of the transmission system. Its material, tooth shape and heat treatment process are carefully selected and designed to ensure that it has sufficient strength and wear resistance when rotating at high speed. The front and rear sides of the top of the weeding vehicle 1 are respectively connected to two gears 2 6 through bearings and other connecting parts. The bottoms of the two gears 2 6 are connected in rotation by a rotating shaft 7. The design of the rotating shaft 7 takes into account both the transmission efficiency and the load stability. When the servo motor 4 starts and drives the gear 1 5 to rotate at high speed, the gear 2 6 and the gear 1 5 are linked by meshing, so the gear 2 6 will also rotate synchronously. This linkage design not only improves the transmission efficiency, but also makes the power transmission of the entire weeding device more stable and reliable; the bottom end of the rotating shaft 7 also passes through the top of the weeding vehicle 1 and is fixedly connected to a mounting plate 1 8. The mounting plate 1 8 serves as a connecting component, and a plurality of plug holes 9 are evenly distributed around its bottom. The design size of the plug holes 9 matches the connecting column 10, so that the connecting column 10 can slide and connect smoothly inside it. The bottom end of the connecting column 10 is fixedly connected to the mounting plate 2 11. The mounting plate Limiting grooves 12 are provided around the top of the second mounting plate 11, and the limiting grooves 12 correspond to the connecting holes 14 at the top of the cutting blade 13, so that the cutting blade 13 can be quickly positioned and installed in the limiting grooves 12; during the installation process, the cutting blade 13 on the mounting plate 2 11 is first slidably connected to the connecting column 10 through the connecting hole 14 at its top, and the mounting plate 1 8 and the mounting plate 2 11 are merged with each other so that the connecting column 10 can be smoothly inserted into the corresponding plug hole 9. In order to ensure the firmness of the installation, the bottom of the mounting plate 2 11 is also threadedly connected with a bolt 15, and the top of the bolt 15 passes through the bottom of the mounting plate 2 11 and is threadedly connected to the bottom of the mounting plate 1 8. By rotating the bolt 15, the mounting plate 1 8 and the mounting plate 2 11 are reinforced, thereby ensuring that the entire weeding tool remains stable and reliable during high-speed operation.

[0034] Reference Figure 1 、 Figure 2 and Figure 3, the cleaning mechanism 2 includes a dust collector 201, the bottom of which is fixedly connected to the top of the lawn mower 1, one end of the dust collector 201 is connected to a connecting pipe 202, and the other end of the connecting pipe 202 is connected to a recycling box 203. By starting the dust collector 201, a negative pressure is generated inside the recycling box 203, and a filter plate 204 is slidably connected to the top front side of the recycling box 203. The right side of the recycling box 203 is connected to a dust suction pipe 205, and the other end of the dust suction pipe 205 is connected to a dust suction head 206. By cooperating with the dust suction head 206, the cut weeds and dust are transported to the recycling box 203 through the dust suction pipe 205, and the dust is filtered by the filter plate 204, so that the excess gas is discharged through the dust collector 201. The cleaning mechanism 2 also includes a plurality of reinforcement plates 207, and the bottoms of the plurality of reinforcement plates 207 are fixedly connected to the top of the dust suction head 206;

[0035] Specifically, the bottom of the vacuum cleaner 201 is fixedly connected to the top of the lawn mower 1. When the vacuum cleaner 201 is started, a strong negative pressure environment is created inside the recycling box 203, which lays a solid foundation for subsequent cleaning work. The connecting pipe 202 serves as a bridge between the vacuum cleaner 201 and the recycling box 203. Its design is also exquisite. It uses high-strength lightweight materials, which not only ensures transmission efficiency but also reduces the overall weight, making it easy to operate and move. The other end of the connecting pipe 202 is cleverly connected to the recycling box 203, forming a smooth transmission channel, ensuring that weeds and dust can enter the recycling box 203 smoothly and unimpeded; the sliding connection on the top front side of the recycling box 203 The filter plate 204 adopts high-precision filter mesh material, which can effectively intercept and filter out the inhaled dust and fine particles, ensuring that the exhausted gas is clean and harmless. This design not only protects the environment, but also extends the service life of the vacuum cleaner; the vacuum tube 205 is made of highly flexible material and can easily adapt to various complex terrains, ensuring that the vacuum head 206 can accurately reach every corner. The vacuum head 206 adopts a wide-width design and is equipped with an efficient cutting blade, which can quickly weed and suck weeds and dust into the vacuum tube 205 at the same time. This design greatly improves the cleaning efficiency and makes weeding operations easier and faster.

[0036] Reference Figure 1 、 Figure 2 and Figure 3A push rod 17 is fixedly connected to the right side of the top of the weeding vehicle 1, and an anti-slip sleeve 18 is fixedly connected to the outer wall of the push rod 17. Wheels 19 are rotatably connected to the four sides of the weeding vehicle 1, and the outer walls of multiple wheels 19 are provided with a wear-resistant layer 20. A connecting plate 21 is fixedly connected to the left side of the weeding vehicle 1, and a baffle 22 is fixedly connected to the left side of the connecting plate 21. A headlight 24 is fixedly connected to the left side of the top of the weeding vehicle 1, and a protective cover 23 is fixedly connected to the top of the two headlights 24. A controller 16 is fixedly connected to the top of the weeding vehicle 1, and the controller 16 is electrically connected to the vacuum cleaner 201, the servo motor 4 and the headlight 24 respectively;

[0037] Specifically, a push rod 17 is placed on the top right side of the lawn mower 1. The push rod 17 is tightly connected to the vehicle body through a sturdy fixing part to ensure stability and reliability during operation. The outer wall of the push rod 17 is specially equipped with an anti-slip sleeve 18, which is an anti-slip device made of special materials. It is intended to improve the safety of the operator when holding the push rod in a wet or greasy environment, and effectively prevent operational errors caused by hand slippage. Multiple wheels 19 are evenly distributed around the lawn mower 1 to ensure that the vehicle can flexibly travel on various terrains. Two headlights 24 are specially installed on the top left side of the lawn mower 1. The headlights 24 use high-brightness LED light sources, which have the advantages of energy saving, environmental protection, and long life. In order to protect the headlights from external collisions and damage, a protective cover 23 is fixedly connected to the top of each headlight. The protective cover is made of transparent and sturdy material, which does not affect the lighting effect of the headlights and can effectively prevent collisions with debris.

[0038] Working principle: First, the servo motor 4 is started to drive the gear 1 5 to rotate at high speed. At the same time, the gear 2 6 is engaged with the front and rear sides of the gear 1 5 to realize linkage rotation. The cutting blade 13 is quickly positioned through the limit groove 12 on the mounting plate 2 11. The connecting hole 9 on the cutting blade 13 is slidably installed through the connecting column 10. The mounting plate 1 8 and the mounting plate 2 11 are merged with each other, and the connecting column 10 is inserted into the plug hole 9. The mounting plate 1 8 and the mounting plate 2 11 are reinforced by rotating the bolt 15. The whole installation process is more convenient and simple.

[0039] And by starting the vacuum cleaner 201, negative pressure is generated inside the recycling box 203, and the cut weeds and dust are transported through the vacuum tube 205 by cooperating with the vacuum head 206. The vacuum tube 205 ensures that the weeds and dust can enter the recycling box 203 smoothly and unimpeded, and the dust is filtered by the filter plate 204, which can effectively intercept and filter out the inhaled dust and fine particles, ensuring that the discharged gas is clean and harmless, and the excess gas is discharged through the vacuum cleaner 201, so that the weeds and dust can be sucked into the vacuum tube 205 at the same time as the weeds are quickly removed. This design greatly improves the cleaning efficiency and makes the weeding operation easier and faster.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automated weeding device for farmland, comprising a weeding vehicle (1), characterized in that: The top of the weeding vehicle (1) is fixedly connected to a mounting frame (3), the top of the mounting frame (3) is fixedly connected to a servo motor (4), the output end of the servo motor (4) passes through the top of the mounting frame (3) and is fixedly connected to a gear one (5), the front and rear sides of the top of the weeding vehicle (1) are connected to gear two (6), the bottoms of the two gear twos (6) are rotatably connected to a rotating shaft (7), the bottom end of the rotating shaft (7) passes through the top of the weeding vehicle (1) and is fixedly connected to a mounting plate one (8), the bottom of the mounting plate one (8) is provided with plug holes (9) around, the interiors of the plurality of plug holes (9) are slidably connected to connecting columns (10), and the plurality of connecting columns (10) are connected to the mounting plate one (8). The bottom end of the connecting column (10) is fixedly connected to the second mounting plate (11), and the top of the second mounting plate (11) is provided with limiting grooves (12) around the periphery, and the interiors of the plurality of limiting grooves (12) are slidably connected to cutting blades (13), and the tops of the plurality of cutting blades (13) are provided with connecting holes (14), and the inner walls of the plurality of connecting holes (14) are slidably connected to the outer wall of the connecting column (10), and the bottom of the second mounting plate (11) is threadedly connected to a bolt (15), and the top end of the bolt (15) passes through the bottom of the second mounting plate (11) and is threadedly connected to the bottom of the first mounting plate (8), and a cleaning mechanism (2) is provided on the right side of the top of the weeding vehicle (1).

2. The automatic weeding device for farmland according to claim 1, characterized in that: The cleaning mechanism (2) comprises a dust collector (201), the bottom of which is fixedly connected to the top of the weeding vehicle (1), one end of the dust collector (201) is connected to a connecting pipe (202), the other end of the connecting pipe (202) is connected to a recycling box (203), a filter plate (204) is slidably connected to the front side of the top of the recycling box (203), a dust collection pipe (205) is connected to the right side of the recycling box (203), and the other end of the dust collection pipe (205) is connected to a dust collection head (206).

3. The automatic weeding device for farmland according to claim 2, characterized in that: The cleaning mechanism (2) further comprises a plurality of reinforcing plates (207), the bottoms of the plurality of reinforcing plates (207) being fixedly connected to the top of the dust collecting head (206).

4. The automatic weeding device for farmland according to claim 1, characterized in that: A push rod (17) is fixedly connected to the right side of the top of the weeding vehicle (1), and an anti-slip sleeve (18) is fixedly connected to the outer wall of the push rod (17).

5. The automatic weeding device for farmland according to claim 1, characterized in that: The weeding vehicle (1) is rotatably connected to wheels (19) on all four sides, and outer walls of the plurality of wheels (19) are provided with a wear-resistant layer (20).

6. The automatic weeding device for farmland according to claim 1, characterized in that: A connecting plate (21) is fixedly connected to the left side of the weeding vehicle (1), and a baffle (22) is fixedly connected to the left side of the connecting plate (21).

7. The automatic weeding device for farmland according to claim 1, characterized in that: The left side of the top of the weeding vehicle (1) is fixedly connected to a headlight (24), and the tops of the two headlights (24) are fixedly connected to a protective cover (23).

8. The automatic weeding device for farmland according to claim 1, characterized in that: A controller (16) is fixedly connected to the top of the weeding vehicle (1), and the controller (16) is electrically connected to the vacuum cleaner (201), the servo motor (4) and the vehicle light (24) respectively.