Weed head with seedling protector

Abstract

The utility model relates to a seedling protector for grass cutting head, including the arc grass cutting support with the grass cutting head installation site adaptation, the support both ends are welded with a ring as an organic whole, the support in the ring range has at least one grass cutting blade through the screw hinge, can switch the fixed cutting or the rotation obstacle avoidance state of blade through the adjustment screw tightness, the grass cutting support both ends are equipped with the mounting screw hole, can directly adapt to the original grass cutting head, the ring outside can set up the flexible protective layer, the support is equipped with a plurality of suspension hole positions and can adjust the blade extension length, the utility model through the protection ring physical isolation sapling and blade, effectively avoid sapling damage, and give consideration to weeding efficiency and operation safety, simple structure, strong adaptability and low modification cost, in addition, the blade state and position are adjustable, adapt to different working conditions, and the practicality is strong, solve the problem that sapling is vulnerable to damage in weeding operation, have the advantages such as convenient installation, flexible operation, protection effect is remarkable.

Description

Technical Field

[0001] This utility model relates to a seedling protector, specifically a seedling protector for cutting grass heads. Background Technology

[0002] In the field of agricultural machinery, lawnmowers are a commonly used weeding device, widely used in vegetation management operations in farmland, orchards, and green areas. Their working part is typically a trimmer head mounted at the end, which can be equipped with metal blades or high-strength trimmer lines. It cuts and removes weeds through high-speed rotation.

[0003] However, in practical applications, because saplings and weeds often grow closely together and are intertwined, the high-speed rotating cutting parts of traditional lawnmowers can easily cause mechanical damage to nearby saplings while clearing weeds. This damage not only affects the normal growth and development of saplings, but in severe cases may even lead to sapling breakage or death, resulting in economic losses or a decline in ecological benefits.

[0004] Therefore, effectively avoiding damage to usable seedlings while thoroughly removing weeds has become a major challenge in practical operations. This problem not only requires operators to possess a high degree of caution and skill, but also reflects a further need for the functional design of lawnmower equipment—namely, balancing weeding efficiency with crop safety, and achieving more precise and intelligent weed identification and cutting technology. This requirement makes weeding operations face significant challenges and complexities at both the technical and operational levels. Summary of the Invention

[0005] This invention aims to solve the problem that existing lawn mowing equipment easily damages seedlings during weeding operations. It provides a seedling protector for lawn mowing heads that effectively isolates and protects seedlings without affecting weeding efficiency by adding a protective structure around the mowing head. This overcomes the drawback of existing technologies where weeding and seedling protection are difficult to balance, and improves the safety and reliability of the operation.

[0006] A seedling protector for a grass trimmer head is characterized by: a grass trimmer bracket adapted to the grass trimmer head, both ends of which are fixedly connected to both ends of the same circular ring, and the grass trimmer bracket and the circular ring are welded together; within the space enclosed by the circular ring, at least one grass cutting blade is suspended on the grass trimmer bracket, which can perform grass cutting operations under the drive of the grass trimmer head, while the circular ring can abut against the roots of the seedlings during operation to prevent the grass cutting blades from touching the seedlings and avoiding cutting damage to them.

[0007] Preferably, one or more screw holes are reserved at both ends of the grass cutting bracket for indirect installation and use of the grass cutting blade head that directly cooperates with the original grass cutting head.

[0008] Preferably, one end of the mowing blade is movably connected to the mowing bracket by a screw, and the working state of the mowing blade can be switched by adjusting the tightness of the screw; when the screw is tightened, the mowing blade is in a fixed state, suitable for performing cutting operations; when the screw is loosened, the mowing blade can rotate around the connection point as the mowing bracket rotates, reducing the mowing blade from being entangled in grass.

[0009] Preferably, a flexible protective layer is provided on the outer circumference of the ring. This flexible protective layer is made of rubber or polyurethane material and can play a buffering and protective role when the ring comes into contact with the seedling.

[0010] Preferably, the mowing bracket is provided with multiple hanging holes for adjusting the installation position and extension length of the mowing blades, thereby adapting to the cutting needs of weeds of different heights and densities.

[0011] The beneficial effects of this invention are as follows: 1. Effective protection of seedlings: The protective ring structure set around the cutting head can physically isolate the seedlings from the rotating cutting parts during the weeding operation, fundamentally avoiding direct impact and cutting damage to the root and stem of the seedlings by the cutting blades, and significantly reducing the mechanical damage rate of the seedlings.

[0012] 2. Balancing weeding efficiency and operational safety: The grass-cutting blades are arranged reasonably within the circular protection area, which not only ensures the effective range and efficiency of weeding operations, but also enables active obstacle avoidance through the outer ring, achieving an organic combination of weeding and seedling protection, and improving the safety and reliability of the operation.

[0013] 3. Simple structure and strong adaptability: The two ends of the grass cutting frame are equipped with screw holes that match the original grass cutting head mounting position. The grass cutting head can be directly installed on both ends of the grass cutting frame without removing the seedling protector, which expands the grass cutting range, reduces the cost of use, and improves the versatility and adaptability of the equipment.

[0014] 4. Adjustable blade position, suitable for various working conditions: The mowing blade is hinged to the mowing bracket with screws. The tightness of the screws can be adjusted to achieve either a fixed working state or a rotating obstacle avoidance state. The fixed state ensures cutting force, while the rotating state effectively reduces entanglement with long grass and improves adaptability to different weed conditions.

[0015] 5. Buffer protection to avoid secondary damage: The flexible protective layer set around the outer circumference of the ring can provide buffer when in contact with the seedling, avoiding scratches to the bark of the seedling caused by the rigid structure, and further enhancing the protective effect.

[0016] 6. Easy to adjust and highly practical: The grass cutting frame is equipped with multiple hanging holes, allowing users to flexibly adjust the installation position and extension length of the grass cutting blades according to the height and density of the weeds. This multi-purpose machine significantly improves the practicality and economy of the equipment.

[0017] In summary, this utility model not only solves the industry problem of seedlings being easily damaged during weeding operations, but also has the advantages of reasonable structure, convenient installation, flexible operation, and significant protective effect, and has high promotional value. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of another example of this utility model. Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are provided solely for the purpose of clearly illustrating the technical solution of the present invention, offering numerous specific details to provide a more thorough understanding. However, those skilled in the art will recognize that the present invention can be implemented without one or more of these details. In these examples, to avoid confusion with the present invention, some technical features known in the art have not been described.

[0021] It should be understood that the present invention can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. Therefore, these embodiments are merely examples and should not be used to limit the scope of protection of the present invention.

[0022] Additionally, it should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0023] See Figure 1 , Figure 2 The grass trimming head protection device includes a grass trimming bracket 1 that is adapted to the mounting position on the grass trimming head. The screw holes in the middle part of the grass trimming bracket 1 are adapted to the mounting surface of the grass trimming head. The two ends of the grass trimming bracket 1 are fixedly connected to the two ends of the same ring 2. The grass trimming bracket 1 and the ring 2 are connected together by welding to form a rigid integral structure.

[0024] Within the annular space enclosed by the ring 2, the mowing bracket 1 is provided with mounting holes 11. At least one mowing blade 3 is suspended through the mounting holes 11 and screws. The mowing blade 3 can perform mowing operations under the drive of the mowing head. At the same time, the ring 2 can press against the roots of the seedlings during the operation to prevent the mowing blade 3 from touching the seedlings and avoid cutting damage to them.

[0025] In this embodiment, the operator manipulates the lawnmower to cover the seedlings to be protected with the ring 2. The inner wall of the ring 2 can abut against the roots of the seedlings to form a physical barrier. The high-speed rotation of the mowing head drives the entire seedling protector and the mowing blades 3 to rotate synchronously. The blades 3 are responsible for cutting the weeds around the area of ​​the ring 2, while the ring 2 ensures that the seedlings inside are not touched by the rotating blades, thereby achieving safe weeding.

[0026] Furthermore, as an improvement to this utility model, one or more screw holes are reserved at both ends of the grass cutting bracket 1 for indirect installation and use of the grass cutting head 4, which directly cooperates with the original grass cutting head. Furthermore, as an improvement to this utility model, one end of the mowing blade 3 is movably connected to the mowing bracket 1 by a screw, and the working state of the mowing blade 3 can be switched by adjusting the tightness of the screw; when the screw is tightened, the mowing blade 3 is in a fixed state, suitable for performing cutting operations; when the screw is loosened, the mowing blade 3 can rotate around the connection point as the mowing bracket rotates, reducing the mowing blade from being entangled by grass.

[0027] In this embodiment, when the nut is tightened, the grass-cutting blade 3 is in a fixed state and can efficiently cut weeds; when the nut is loosened appropriately, the grass-cutting blade 3 can rotate freely around the axis of the screw, thereby deflecting when encountering hard obstacles, avoiding the blade from getting stuck or damaged, and also effectively reducing the entanglement of long grass.

[0028] Furthermore, as an improvement to this utility model, a flexible protective layer (not shown) is provided on the outer circumference of the ring 2. This flexible protective layer (not shown) is made of rubber or polyurethane material and can play a buffering and protective role when the ring comes into contact with the seedling.

[0029] In this embodiment, the outer circumferential surface of the ring 2 is covered with a flexible protective layer (not shown). This protective layer (not shown) is preferably made of wear-resistant rubber or polyurethane material through an overmolding process, and its thickness is approximately 3-5 mm. The flexible protective layer (not shown) can provide effective cushioning when the ring 2 accidentally collides with the sapling, preventing the hard metal ring from scratching the bark and providing secondary protection for the sapling.

[0030] Furthermore, as an improvement to this utility model, the grass cutting bracket 1 is provided with multiple hanging holes for adjusting the installation position and extension length of the grass cutting blade 3, thereby adapting to the cutting needs of weeds of different heights and densities.

[0031] In this embodiment, the mowing bracket 1 has multiple hanging holes arranged side by side, distributed along the axial direction of the mowing bracket 1. The radial extension length of the mowing blade 3 relative to the center of the ring 2 can be adjusted by selecting different hanging holes for installation. This design allows the user to flexibly adjust the effective cutting radius of the blade according to the height and density of weeds in the field. For example, when the weeds are tall and dense, the mowing blade 3 can be installed in the outermost hole to expand the cutting range; when near valuable seedlings or where the weeds are sparse, the mowing blade 3 can be installed in the innermost hole to reduce the working radius and provide a greater safety margin.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A seedling protector for cutting grass heads, characterized in that: The device includes a mowing bracket that is compatible with the mowing head. Both ends of the mowing bracket are fixedly connected to the two ends of the same ring, and the mowing bracket and the ring are welded together. Within the space enclosed by the ring, at least one mowing blade is suspended on the mowing bracket. The mowing blade can perform mowing operations under the drive of the mowing head. At the same time, the ring can press against the roots of the seedlings during operation to prevent the mowing blade from touching the seedlings and avoiding cutting damage to them.

2. The seedling protector for cutting grass heads according to claim 1, characterized in that: One or more screw holes are reserved at each end of the grass cutting bracket for indirect installation of the grass cutting blade head that directly cooperates with the original grass cutting head.

3. The seedling protector for cutting grass heads according to claim 1, characterized in that: One end of the mowing blade is movably connected to the mowing bracket by a screw, and the working state of the mowing blade can be switched by adjusting the tightness of the screw; when the screw is tightened, the mowing blade is in a fixed state and is suitable for performing cutting operations. When the screw is loosened, the mowing blade can rotate around the connection point as the mowing bracket rotates, reducing the likelihood of the mowing blade getting tangled in grass.

4. The seedling protector for cutting grass heads according to claim 1, characterized in that: A flexible protective layer is provided on the outer circumference of the ring. This flexible protective layer is made of rubber or polyurethane material and can play a buffering and protective role when the ring comes into contact with the seedling.

5. The seedling protector for cutting grass heads according to claim 1, characterized in that: The mowing bracket is equipped with multiple hanging holes for adjusting the installation position and extension length of the mowing blades, thereby adapting to the cutting needs of weeds of different heights and densities.

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