A land corner trimming device

Abstract

This utility model discloses a land edge trimming device, belonging to the field of land trimming technology, aiming to solve the technical problem of small rotary tillers requiring secondary soil crushing and easily causing soil re-clumping. The device includes a rotary tiller frame, a crushing mechanism, and a weed-cutting mechanism. This utility model uses arc-shaped blades on the rotating shaft to initially cut large chunks of hard mud thrown by the rotary tiller blades, breaking down the overall structure of the hard mud. The soil-crushing teeth on the top of the support block directly penetrate the interior of the incompletely crushed hard mud, further breaking it down. This secondary crushing ensures the hard mud is completely broken up, avoiding the retention of large hardened materials in the soil and significantly improving soil looseness. The fixing frame is distributed in opposite spiral directions on the outside of the rotating shaft. When the rotating shaft rotates, the support blocks, distributed in a bidirectional spiral, rotate synchronously, guiding and spreading the crushed soil evenly to both sides, thus solving the problem of small rotary tillers requiring secondary soil crushing and easily causing soil re-clumping.

Description

Technical Field

[0001] This utility model relates to the field of land trimming technology, and more specifically, to a land edge trimming device. Background Technology

[0002] In many fields such as agricultural production, horticulture, municipal greening, and land consolidation, the preparation of land edges and corners is a crucial step in ensuring land use efficiency, improving basic planting conditions, and enhancing environmental aesthetics. Land edges and corners typically refer to areas that are not extensively cultivated, such as the edges of plots, the sides of field ridges, the perimeter of green belts, and corners of courtyards. These areas are often limited by narrow working spaces, irregular terrain contours, and differences in height or soil structure compared to the main plots, making them challenging aspects of the entire land consolidation process.

[0003] Traditional land edge trimming has long relied on manual labor. Workers use simple tools such as hoes, rakes, and sickles to perform tasks such as turning the soil, breaking up the soil, removing weeds, and leveling the surface. This method is not only extremely labor-intensive but also inefficient. Some areas have begun to try using small rotary tillers to replace manual labor for land edge trimming. However, existing rotary tillers have significant drawbacks in edge trimming scenarios: their core function is only basic soil turning; the large, hard clods of soil produced after tilling cannot be further broken up. Additional personnel are needed to use soil-breaking rakes for secondary breaking up, increasing the workflow and time costs. Furthermore, the soil is prone to re-clumping due to human trampling during secondary breaking up. Therefore, we propose a land edge trimming device. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a land edge trimming device to solve the technical problem that current small rotary tillers require secondary soil crushing and are prone to soil re-clumping.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a land edge trimming device, including a rotary tiller frame, a crushing mechanism, and a weed cutting mechanism. A rotary tiller blade shaft is rotatably mounted inside the rotary tiller frame, and rotary tiller blades are arranged on the outer side of the rotary tiller blade shaft. A toothed plate is fixedly mounted on the back of the rotary tiller frame. The crushing mechanism includes a rotating shaft and support blocks. The rotating shaft is rotatably mounted inside the rotary tiller frame and located above and behind the rotary tiller blade shaft. The support blocks are spirally distributed on the outer side of the rotating shaft, with the spiral directions being opposite on the left and right sides. The weed cutting mechanism includes a guide plate and barbed blades. The guide plate is disposed between two support blocks, and barbed blades are arranged on the inner side wall of the guide plate.

[0006] Preferably, the crushing mechanism further includes a first synchronous pulley, which is fixedly installed on the outside of the rotary tiller's blade shaft. A synchronous belt is driven and installed on the outside of the first synchronous pulley. The synchronous belt is driven and installed with a second synchronous pulley fixedly installed on the outside of the rotating shaft. A mounting plate is fixedly installed on the outside of the rotating shaft. A fixing frame is fixedly installed on the mounting plate by bolts. A support block is fixedly installed on the top of the fixing frame. A soil-crushing tooth is fixedly installed on the top of the support block. An arc-shaped blade is fixedly installed on the outside of the fixing frame. A protective box is fixedly installed on the outside of the rotary tiller frame. The protective box covers the outside of the first and second synchronous pulleys.

[0007] Preferably, the grass-breaking mechanism further includes a cavity disposed between two support blocks, the guide plate is fixedly installed on the inner wall of the cavity, and a crushing protrusion is fixedly installed on the outer wall of the guide plate.

[0008] Preferably, the mounting plate is spirally distributed on the outside of the rotating shaft, and the spiral directions are opposite to those on the left and right sides.

[0009] Preferably, the guide plate has an arc-shaped cross-section, and the crushing protrusions are hemispherical protrusions distributed in multiple rows on the outer side wall of the guide plate.

[0010] Preferably, the rotary tiller frame is provided with a rotary tiller power unit on top, and the rotary tiller frame is provided with a connector for connecting to a traction vehicle. The rotary tiller power unit is connected to the rotary tiller cutter shaft through a sprocket mechanism.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses arc-shaped blades on the rotating shaft to initially cut large chunks of hard mud thrown by the rotary tiller blades, breaking down the overall structure of the hard mud. The soil-crushing teeth on the top of the support block directly penetrate into the interior of the not-completely-broken hard mud, further disintegrating the hard mud. This secondary soil crushing ensures that the hard mud is completely broken down, avoiding the presence of large hardened materials in the soil and significantly improving soil looseness. The fixing frame is distributed on the outside of the rotating shaft in opposite spiral directions. When the rotating shaft rotates, the support blocks, which are distributed in a bidirectional spiral, rotate synchronously, which can evenly guide and spread the crushed soil to the left and right sides, solving the problem that small rotary tillers need secondary soil crushing and are prone to soil re-clumping.

[0012] 2. This utility model also uses an arc-shaped blade to simultaneously cut grass roots and stalks in the soil while cutting hard mud blocks, preventing them from getting tangled on equipment parts or remaining on the soil surface. The inner wall of the guide plate is equipped with barbed blades. During the process of the hard mud block being thrown out of the guide plate by centrifugal force, the barbed blades can perform secondary cutting on the deep grass roots or small grass stalks wrapped inside the hard mud block, ensuring that the grass roots and stalks are completely cut off and separated from the soil. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a front structural diagram of the present invention; Figure 3 This is a schematic diagram of the internal structure of the powder of this utility model; Figure 4 This is a schematic diagram of the installation structure of the crushing mechanism of this utility model; Figure 5 This is a schematic diagram of the crushing mechanism of this utility model; Figure 6 This is a front structural diagram of the grass-cutting mechanism of this utility model.

[0014] The following are the labels in the diagram: 1. Rotary tiller frame; 2. Crushing mechanism; 21. First synchronous pulley; 211. Synchronous belt; 212. Second synchronous pulley; 22. Protective box; 23. Rotating shaft; 231. Mounting plate; 24. Fixing frame; 25. Support block; 251. Soil-crushing teeth; 26. Curved blade; 3. Weed-cutting mechanism; 31. Cavity; 32. Guide plate; 33. Barbed blade; 34. Crushing protrusion; 4. Rotary tiller power unit; 5. Connecting parts; 6. Rotary tiller blade shaft; 61. Rotary tiller blade; 7. Tooth plate. Detailed Implementation

[0015] Example: Figures 1 to 6As shown, this utility model relates to a land edge trimming device, including a rotary tiller frame 1, a shredding mechanism 2, and a weed-cutting mechanism 3. A rotary tiller blade shaft 6 is rotatably mounted inside the rotary tiller frame 1. A rotary tiller power unit 4 is located on the top of the rotary tiller frame 1, and a connector 5 for connecting to a tractor is also located on the top of the rotary tiller frame 1. The rotary tiller power unit 4 is connected to the rotary tiller blade shaft 6 via a sprocket mechanism. Rotary tiller blades 61 are located on the outer side of the rotary tiller blade shaft 6. A toothed plate 7 is fixedly mounted on the back of the rotary tiller frame 1. The shredding mechanism 2 includes a rotating shaft 23 and support blocks 25. The rotating shaft 23 is rotatably mounted inside the rotary tiller frame 1 and located above and behind the rotary tiller blade shaft 6. The support blocks 25 are spirally distributed on the outer side of the rotating shaft 23, with the spiral directions being opposite on the left and right sides. The weed-cutting mechanism 3 includes a guide plate 32 and barbed blades 33. The guide plate 32 is located between two support blocks 25. The guide plate 32 has an arc-shaped cross-section, and the crushing protrusions 34 are hemispherical protrusions distributed in multiple rows on the outer side wall of the guide plate 32. The inner side wall of the guide plate 32 is provided with barbed blades 33. The arc-shaped blades 26 on the rotating shaft 23 initially cut the large hard mud lumps thrown by the rotary tiller blades 61, breaking the overall structure of the hard mud lumps. The soil crushing teeth 251 on the top of the support block 25 directly penetrate into the interior of the incompletely crushed hard mud lumps, further breaking down the hard mud lumps. The secondary soil crushing ensures that the hard mud lumps are completely crushed, avoiding the presence of large hard masses in the soil, and significantly improving the looseness of the soil. The fixing frame 24 is distributed on the outside of the rotating shaft 23 in opposite spiral directions. When the rotating shaft 23 rotates, it rotates synchronously through the bidirectional spiral distribution of the support block 25, which can evenly guide and spread the crushed soil to the left and right sides, solving the problem that small rotary tillers need secondary soil crushing and are prone to soil re-clumping.

[0016] Furthermore, such as Figures 3 to 4 As shown, the crushing mechanism 2 also includes a first synchronous pulley 21, which is fixedly installed on the outside of the rotary tiller blade shaft 6. A synchronous belt 211 is driven and installed on the outside of the first synchronous pulley 21. The synchronous belt 211 is driven and installed with a second synchronous pulley 212 fixedly installed on the outside of the rotating shaft 23. A mounting plate 231 is fixedly installed on the outside of the rotating shaft 23. The mounting plate 231 is spirally distributed on the outside of the rotating shaft 23, and the spiral direction is opposite to the left and right sides. A fixing frame 24 is fixedly installed on the mounting plate 231 by bolts. A support block 25 is fixedly installed on the fixing frame 24. At the top, a soil-crushing tooth 251 is fixedly installed on the top of the support block 25. An arc-shaped blade 26 is fixedly installed on the outside of the fixing frame 24. A protective box 22 is fixedly installed on the outside of the rotary tiller frame 1. The protective box 22 covers the outside of the first synchronous wheel 21 and the second synchronous wheel 212. The rotary tiller blade shaft 6 drives the rotating shaft 23 of the crushing mechanism 2 to rotate synchronously through the first synchronous wheel 21, the synchronous belt 211 and the second synchronous wheel 212, so as to realize soil crushing and weeding. Finally, the toothed plate 7 on the back of the rotary tiller frame 1 completes the leveling. No manual intervention or equipment replacement is required throughout the process.

[0017] Furthermore, such as Figures 5 to 6 As shown, the grass-cutting mechanism 3 also includes a cavity 31, which is located between two support blocks 25. A guide plate 32 is fixedly installed on the inner wall of the cavity 31, and a crushing protrusion 34 is fixedly installed on the outer wall of the guide plate 32. While cutting the hard mud block, the arc-shaped blade 26 can simultaneously cut the grass roots and grass stalks in the soil, preventing them from getting tangled on the equipment parts or remaining on the soil surface. The inner wall of the guide plate 32 is provided with a barbed blade 33. During the process of the hard mud block being thrown out of the guide plate 32 by centrifugal force, the barbed blade 33 can perform a secondary cut on the deep grass roots or small grass stalks wrapped inside the hard mud block, ensuring that the grass roots and grass stalks are completely cut off and separated from the soil.

[0018] Working principle: This embodiment provides a land edge trimming device. When in use, the device is connected to a tractor vehicle through the connector 5. The device is moved to the edge of the land that needs to be trimmed. The rotary tiller power unit 4 is started. The rotary tiller power unit 4 drives the rotary tiller blade shaft 6 to rotate through the sprocket mechanism, which in turn drives the rotary tiller blades 61 to rotate and perform rotary tilling operation on the land.

[0019] The rotary tiller blade shaft 6 rotates, driving the rotating shaft 23 to rotate via the first synchronous pulley 21, synchronous belt 211, and second synchronous pulley 212. This causes the rotating shaft 23 to rotate along with the rotary tiller blade shaft 6, resulting in soil being thrown from the rotary tiller blades 61 onto the rotating shaft 23. The curved blades 26 first cut open larger clumps of hard soil, severing grass roots and stalks. The soil-crushing teeth 251 can directly penetrate the interior of the hard soil clumps and guide them through the guide plate 32 into the cavity 31 between the two soil-crushing teeth 251. The crushing protrusions 34 then perform a secondary crushing operation. Under the action of centrifugal force, the hard soil clumps inside the guide plate 32 are thrown out. The barbed blades 33 on the inner wall of the guide plate 32 can cut the grass roots and stalks inside the hard soil clumps.

[0020] Since the fixed frame 24 is distributed on both sides of the rotating shaft 23 in opposite spiral directions, the crushed soil can be evenly spread and laid on the land surface. After being combed by the toothed plate 7, the toothed plate 7 at the rear of the device performs final combing and scraping of the spread soil, thereby completing the trimming and leveling of the land edges.

[0021] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A land edge trimming device, characterized in that, include, Rotary tiller frame (1), a rotary tiller blade shaft (6) is rotatably installed inside the rotary tiller frame (1), rotary tiller blades (61) are provided on the outside of the rotary tiller blade shaft (6), and a toothed plate (7) is fixedly installed on the back of the rotary tiller frame (1). The crushing mechanism (2) includes a rotating shaft (23) and a support block (25). The rotating shaft (23) is rotatably installed inside the rotary tiller frame (1) and located above and behind the rotary tiller blade shaft (6). The support block (25) is spirally distributed on the outside of the rotating shaft (23), and the spiral directions are opposite to those on the left and right sides. The grass-cutting mechanism (3) includes a guide plate (32) and a barbed blade (33). The guide plate (32) is disposed between two support blocks (25), and the inner sidewall of the guide plate (32) is provided with a barbed blade (33).

2. The land edge trimming device according to claim 1, characterized in that, The crushing mechanism (2) also includes a first synchronous wheel (21), which is fixedly installed on the outside of the rotary tiller blade shaft (6). A synchronous belt (211) is driven on the outside of the first synchronous wheel (21), and the synchronous belt (211) is driven on the outside of the rotating shaft (23). An mounting plate (231) is fixedly installed on the outside of the rotating shaft (23). A fixing frame (24) is fixedly installed on the mounting plate (231) by bolts. A support block (25) is fixedly installed on the top of the fixing frame (24). A soil crushing tooth (251) is fixedly installed on the top of the support block (25). An arc-shaped blade (26) is fixedly installed on the outside of the fixing frame (24). A protective box (22) is fixedly installed on the outside of the rotary tiller frame (1), and the protective box (22) covers the outside of the first synchronous wheel (21) and the second synchronous wheel (212).

3. The land edge trimming device according to claim 2, characterized in that, The grass-cutting mechanism (3) also includes a cavity (31), which is located between two support blocks (25). The guide plate (32) is fixedly installed on the inner wall of the cavity (31), and a crushing protrusion (34) is fixedly installed on the outer wall of the guide plate (32).

4. The land edge trimming device according to claim 2, characterized in that, The mounting plate (231) is spirally distributed on the outside of the rotating shaft (23), and the spiral direction is opposite to that of the left and right sides.

5. A land edge trimming device according to claim 3, characterized in that, The guide plate (32) has an arc-shaped cross-section, and the crushing protrusion (34) is a hemispherical protrusion, which is distributed in multiple rows on the outer side wall of the guide plate (32).

6. The land edge trimming device according to claim 1, characterized in that, The rotary tiller frame (1) is equipped with a rotary tiller power unit (4) on top, and a connector (5) for connecting to a traction vehicle is provided on top of the rotary tiller frame (1). The rotary tiller power unit (4) is connected to the rotary tiller cutter shaft (6) through a sprocket mechanism.

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