Rotary tillage weeding cutter
By introducing a combination structure of fixing ring, support frame, curved blade and U-shaped blade into the rotary tillage weeding blade, the automatic adjustment of the curved blade is realized, which solves the problems of low weeding efficiency and easy tangling of blades in the existing technology, improves the efficiency of use and reduces economic costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIGS TILLAGE TOOLS CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-14
AI Technical Summary
Existing rotary tillage blades are inefficient at removing weeds when faced with different soil types and weed densities, requiring frequent blade replacements, increasing economic costs, and are easily entangled by weeds, affecting their efficiency.
A rotary tillage and weeding blade was designed, which adopts a combination structure of a fixed ring, a support frame, a curved blade and a U-shaped blade. The height adjustment of the curved blade is achieved by adjusting the components, avoiding manual adjustment and preventing the grass from getting too long and tangling around the blade.
This improves the efficiency of the weeder, avoids the decrease in blade rotation speed caused by weeds getting tangled, and reduces the frequency and cost of blade replacement.
Smart Images

Figure CN224111639U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural implements and equipment, specifically a rotary tillage and weeding tool. Background Technology
[0002] Rotary tillage and weeding blades cut into the soil with high-speed rotating blades, using a triple combination of cutting, tearing, and throwing motions to break up the soil and remove weeds. The blades and control system work together to remove weeds from the soil and grassland, making them particularly suitable for large-scale farmland operations.
[0003] The existing rotary tillage weeding blades use steel plate blades of fixed length. When the density and root length of weeds vary in different soils, using a single blade can easily reduce weeding efficiency, requiring the replacement of different weeding blades. This leads to the purchase of multiple blades, increasing economic costs, and the frequent replacement reduces the efficiency of the weeding machine. Longer weeds can easily entangle the blades, also affecting their efficiency.
[0004] Therefore, this utility model proposes a rotary tillage and weeding tool to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a rotary tillage and weeding tool to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotary tillage and weeding tool, comprising: a rotating support rod, a plurality of fixed rings mounted on the outer surface of the rotating support rod, a plurality of support frames mounted on the outer surface of the fixed rings, the support frames being evenly distributed in a ring array on the outer surface of the fixed rings, the side walls of the support frames having movable grooves, curved blades being movably mounted inside the support frames, and a plurality of U-shaped blades mounted on the side walls of the fixed rings, the U-shaped blades being located between two adjacent support frames.
[0007] Preferably, a fixing block is installed on both sides of the curved blade, the fixing block penetrates the interior of the movable groove, and an adjustment component is installed inside the fixing block.
[0008] Preferably, the adjusting assembly includes a threaded rod and a sliding rod, which are placed parallel to each other. The bottom ends of the threaded rod and the sliding rod pass through the interior of the fixed block, the fixed ring, and the rotating support rod. A limiting plate is installed on the top of the threaded rod and the sliding rod. The bottom of the limiting plate is fixed to the upper surface of the fixed block, and the interior of the fixed block rotates through a bearing.
[0009] Preferably, the sidewall of the fixing block has a groove, and the outer surface of the limiting plate is equipped with several baffles evenly distributed in a ring array.
[0010] Preferably, a spring is installed on the top of the limiting plate, and an insert plate is installed on the top of the spring. The insert plate is a U-shaped plate, and the bottom of the insert plate passes through the space between two adjacent baffles and enters the interior of the groove.
[0011] Preferably, the top center of the insert plate is provided with a slot, and the top of the limiting plate is equipped with a rotating locking rod. The top of the rotating locking rod is located at the top of the insert plate, and the top of the rotating locking rod is consistent with the shape and size of the slot.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The rotary tillage and weeding blade proposed in this utility model utilizes a fixed ring, a support frame, a curved blade, and a U-shaped blade in combination. This allows the curved blade to be adjusted in height within the support frame, avoiding manual adjustment that would otherwise reduce the efficiency of the weeding machine. At the same time, the U-shaped blade prevents excessively long grass from tangling around the curved blade, which would affect the rotation speed of the blade and thus its efficiency. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the rotary tillage and weeding blade of this utility model;
[0015] Figure 2 This is a three-dimensional structural diagram of a single tool assembly of this utility model;
[0016] Figure 3 This is a three-dimensional structural diagram of the movable and fixed curved blade of this utility model;
[0017] Figure 4 This utility model Figure 3 A three-dimensional magnified structural diagram of A.
[0018] In the diagram: 1. Rotating support rod; 2. Fixed ring; 3. Support frame; 4. Movable groove; 5. Curved blade; 6. U-shaped blade; 7. Fixed block; 8. Adjusting component; 9. Threaded rod; 10. Slide rod; 11. Limiting plate; 12. Groove; 13. Baffle; 14. Spring; 15. Insert plate; 16. Slot; 17. Rotating locking rod. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] Example 1: Please refer to Figures 1-4 This utility model provides a technical solution: a rotary tillage and weeding tool, the rotary tillage and weeding tool includes: a rotating support rod 1, a plurality of fixed rings 2 are installed on the outer surface of the rotating support rod 1, a plurality of support frames 3 are installed on the outer surface of the fixed rings 2, the support frames 3 are evenly distributed in a ring array on the outer surface of the fixed rings 2, the side wall of the support frame 3 is provided with a movable groove 4, the inside of the support frame 3 is movably installed with a curved blade 5, and a plurality of U-shaped blades 6 are installed on the side wall of the fixed rings 2, the U-shaped blades 6 are located between two adjacent support frames 3;
[0021] During use, the height of the curved blade 5 inside the support frame 3 can be adjusted to easily adjust the length of the curved blade 5 to adjust the required weeding length and the depth of penetration into the soil, avoiding manual adjustment and improving the trimming efficiency of the weeder. The U-shaped blade 6 is located between the curved blades 5 and is installed on the outer surface of the rotating support rod 1 by the fixing ring 2. This prevents the grass from being too long and getting caught on the curved blade 5, which would affect the rotation speed of the blade and thus the efficiency of the blade.
[0022] Example 2: Based on Example 1, the structure for adjusting the cutting tool is as follows: both sides of the curved blade 5 are equipped with fixing blocks 7, which penetrate the interior of the movable groove 4. An adjustment component 8 is installed inside the fixing block 7. The adjustment component 8 includes a threaded rod 9 and a sliding rod 10, which are placed parallel to each other. The bottom ends of the threaded rod 9 and the sliding rod 10 penetrate the interior of the fixing block 7, the fixing ring 2, and the rotating support rod 1. A limit plate 11 is installed on the top of the threaded rod 9 and the sliding rod 10. The bottom of the limit plate 11 is fixed to the upper surface of the fixing block 7, and the interior of the fixing block 7 rotates through a bearing.
[0023] In use, the adjusting component 8 controls the rotation of the threaded rod 9 through the power control system. Under the action of the slide rod 10, the fixed block 7 moves up and down through the bearing and the limit plate 11, thereby driving the curved blade 5 to move up and down.
[0024] Example 3: Based on Example 2, to facilitate the movement and adjustment of the curved blade 5 and fix it, the side wall of the fixing block 7 is provided with a groove 12, and the outer surface of the limiting plate 11 is provided with several evenly distributed baffles 13 in a ring array. The top of the limiting plate 11 is provided with a spring 14, and the top of the spring 14 is provided with an insert plate 15. The insert plate 15 is a U-shaped plate. The bottom of the insert plate 15 passes through the space between two adjacent baffles 13 and enters the interior of the groove 12. The top center of the insert plate 15 is provided with a slot 16. The top of the limiting plate 11 is provided with a rotating locking rod 17. The top of the rotating locking rod 17 is located at the top of the insert plate 15, and the top of the rotating locking rod 17 is the same shape and size as the slot 16.
[0025] In use, when the rotating lever 17 is rotated to a position parallel to the slot 16, the bottom of the insert plate 15 is moved out of the groove 12 by the outward pushing force provided by the spring 14, so that the curved blade 5 can be moved and adjusted. After the curved blade 5 is moved and adjusted, it presses the insert plate 15 down and moves it, so that the rotating lever 17 passes through the slot 16 and rotates to fix the insert plate 15, so that the bottom end of the insert plate 15 passes through the two adjacent baffles 13, and fixes the limiting plate 11, the threaded rod 9 and the slide rod 10.
[0026] In actual use, when the rotating lever 17 is rotated to a position parallel to the slot 16, the bottom of the insert plate 15 is moved out of the groove 12 under the outward pushing force provided by the spring 14. After the adjusting component 8 controls the rotation of the threaded rod 9 through the power control system, the fixed block 7 is driven to move up and down under the action of the slide rod 10 through the bearing and the limiting plate 11, thereby driving the curved knife 5 to move up and down, pressing the insert plate 15 downward, so that the rotating lever 17 passes through the slot 16 and rotates to fix the insert plate 15, so that the bottom end of the insert plate 15 can pass through the two adjacent baffles 13, fixing the limiting plate 11, the threaded rod 9 and the slide rod 10.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rotary tillage and weeding blade, characterized in that: The rotary tillage and weeding blade includes: a rotating support rod (1), a number of fixed rings (2) are installed on the outer surface of the rotating support rod (1), a number of support frames (3) are installed on the outer surface of the fixed rings (2), the support frames (3) are evenly distributed in a ring array on the outer surface of the fixed rings (2), the side wall of the support frame (3) is provided with a movable groove (4), the inside of the support frame (3) is movably installed with a curved blade (5), and a number of U-shaped blades (6) are installed on the side wall of the fixed rings (2), the U-shaped blades (6) are located between two adjacent support frames (3).
2. The rotary tillage and weeding blade according to claim 1, characterized in that: The curved blade (5) has a fixing block (7) installed on both sides of its side walls. The fixing block (7) penetrates the interior of the movable groove (4), and an adjustment component (8) is installed inside the fixing block (7).
3. A rotary tillage and weeding tool according to claim 2, characterized in that: The adjustment assembly (8) includes a threaded rod (9) and a slide rod (10). The threaded rod (9) and the slide rod (10) are placed parallel to each other. The bottom ends of the threaded rod (9) and the slide rod (10) pass through the interior of the fixed block (7), the fixed ring (2) and the rotating support rod (1). A limiting plate (11) is installed on the top of the threaded rod (9) and the slide rod (10). The bottom of the limiting plate (11) is fixed to the upper surface of the fixed block (7), and the interior of the fixed block (7) rotates through a bearing.
4. A rotary tillage and weeding tool according to claim 2, characterized in that: The side wall of the fixing block (7) has a groove (12), and the outer surface of the limiting plate (11) is equipped with several baffles (13) evenly distributed in a ring array.
5. A rotary tillage and weeding tool according to claim 3, characterized in that: A spring (14) is installed on the top of the limiting plate (11), and a plug plate (15) is installed on the top of the spring (14). The plug plate (15) is a U-shaped plate, and the bottom of the plug plate (15) passes through the space between two adjacent baffles (13) and enters the interior of the groove (12).
6. A rotary tillage and weeding tool according to claim 5, characterized in that: The top center of the insert plate (15) is provided with a slot (16), and the top of the limiting plate (11) is equipped with a rotating rod (17). The top of the rotating rod (17) is located at the top of the insert plate (15), and the top of the rotating rod (17) is consistent with the shape and size of the slot (16).