Mowing mechanism and grassland operation equipment

Abstract

The embodiment of the invention relates to the technical field of grassland operation, in particular to a mowing mechanism and grassland operation device.The mowing mechanism comprises a first cutting assembly, a second cutting assembly and a third cutting assembly, the third cutting assembly is used for moving between a first position and a second position, and the third cutting assembly is located at the first position; the cutting range of the third cutting assembly intersects with the track generated by the mowing gap in the advancing direction of the grassland operation equipment, the third cutting assembly is located at the second position, and the cutting range of the third cutting assembly exceeds the cutting range of the first cutting assembly and the cutting range of the second cutting assembly in the direction perpendicular to the advancing track of the grassland operation equipment. The third cutting assembly moves between a grass leakage area and a trimming area which cannot be reached by the first cutting assembly and the second cutting assembly, the trimming problem and the grass leakage problem can be solved by means of a single device, the structure of the grassland operation equipment is simplified, and the cost is reduced.

Description

Technical Field

[0001] This application relates to the field of grassland operation technology, and more particularly to a mowing mechanism and grassland operation equipment. Background Technology

[0002] With the development of smart devices, automated lawn mowing equipment, such as robotic lawnmowers, has been widely used in lawn maintenance. These devices can autonomously navigate, avoid obstacles, and complete mowing tasks, improving the efficiency of lawn management. However, robotic lawnmowers sometimes encounter problems during operation, such as being unable to precisely trim areas at the edges of the lawn, including borders, corners, and around obstacles. Additionally, the non-overlapping rotation diameters of the blades result in uncut areas in the center of the blades, leaving missed areas. To address the edge trimming problem, additional edge trimming devices are typically used to gently cut edges that the robotic lawnmower cannot effectively reach. However, these edge trimming devices are complex, costly, and require manual intervention. To address the missed areas, the main blades are usually staggered to cover the unoverlapping areas; however, this requires a large angle of misalignment, which exacerbates the machine's polarization. Summary of the Invention

[0003] This application proposes a mowing mechanism and a lawn operation device. By setting a first cutting component, a second cutting component and a third cutting component in the mowing mechanism, and the third cutting component moving between the missed grass area and the trimming area that the first and second cutting components cannot reach, the trimming problem and the missed grass problem can be solved by a single device, which helps to simplify the structure of the lawn operation device and reduce the cost.

[0004] In a first aspect, embodiments of this application propose a mowing mechanism for use on the body of a lawn mowing equipment for lawn mowing operations. The mowing mechanism includes a first cutting component, a second cutting component, and a third cutting component. A mowing gap is formed between the first cutting component and the second cutting component along a direction parallel to the lawn to be mowed and perpendicular to the travel trajectory of the lawn mowing equipment. The third cutting component is used to move between a first position and a second position. In the first position, the cutting range of the third cutting component intersects with the trajectory generated by the mowing gap along the travel direction of the lawn mowing equipment. In the second position, the cutting range of the third cutting component extends beyond the cutting ranges of the first and second cutting components along a direction perpendicular to the travel trajectory of the lawn mowing equipment.

[0005] This application allows a third cutting component to move between a first position and a second position. When in the first position, the third cutting component covers the mowing gap between the first and second cutting components, removing any missed areas of grass. When in the second position, it covers the machine's edge areas that the first and second cutting components cannot reach, repairing edges, corners, and areas around obstacles. This allows the mowing mechanism to address both edge trimming and missed grass issues with an additional cutting component, simplifying the structure of lawn mowing equipment and reducing costs.

[0006] In one possible implementation, the third cutting component is positioned in the first position, between the first and second cutting components. This allows the third cutting component to simultaneously clean up any missed areas of lawn along the mowing gaps while the first and second cutting components are operating along the main mowing path, preventing the lawn from being trampled or disturbed again.

[0007] In one possible implementation, the third cutting component is spaced apart from the first cutting component along a direction perpendicular to the lawn to be cut. That is, in the vertical direction, the third cutting component is staggered from the first and second cutting components, and the rotation trajectories of the third cutting component and the first and second cutting components are layered, which can eliminate the possibility of direct collision between the third cutting component and the first and second cutting components.

[0008] In one possible implementation, the third cutting component is positioned in the second position, extending outside the machine body along a direction perpendicular to the travel trajectory of the grass-cutting equipment. That is, the cutting range of the third cutting component at least partially extends beyond the machine body. The third cutting component can expand the overall cutting width of the mowing mechanism, which helps ensure that the third cutting component can repair edge areas of the machine body that the first and second cutting components cannot reach, ultimately achieving a good trimming effect.

[0009] In one possible implementation, along the travel direction of the lawn mowing equipment, the cutting range of the third cutting component does not overlap with the cutting range of the first cutting component, nor with the cutting range of the second cutting component. That is, the cutting path of the third cutting component neither overlaps with the cutting path of the first nor the second cutting component. This maximizes the cutting range of the mowing mechanism and further improves its trimming effect.

[0010] In one possible implementation, when the third cutting component moves between the first and second positions, its movement trajectory is concentric with that of the first cutting component, or concentric with that of the second cutting component. The third cutting component needs to move from between the two main cutting components to the outside of the machine body for trimming within a compact chassis space. The third cutting component rotates around the axis of either the first or second cutting component, and this movement trajectory is a planar sector. This minimizes the space occupied by the third cutting component while ensuring that its movement does not interfere with the first and second cutting components, thus facilitating a compact layout of the mowing mechanism.

[0011] In one possible implementation, the mowing mechanism includes a drive belt and a rotating arm. A first cutting component includes a drive motor and a bearing, and a third cutting component includes a pulley and a blade. The bearing is fitted onto the output shaft of the drive motor, the drive belt is fitted onto the inner ring of the bearing and the pulley, the blade is connected to the pulley, the pulley is rotatably connected to the rotating arm, and the rotating arm is rotatably connected to the outer ring of the bearing. The output shaft is used to rotate clockwise to cause the third cutting component to swing to a first position; the output shaft is also used to rotate counterclockwise to cause the third cutting component to swing to a second position. This embodiment, by reusing the bearing and rotating the output shaft of the drive motor in both directions, can simultaneously drive the blade to rotate (via the drive belt and pulley) and change the position of the third cutting component (by driving the rotating arm to swing through the internal force of the transmission system), eliminating the need for a second drive motor and reducing the cost and structural complexity of the mowing mechanism.

[0012] In one possible implementation, the first cutting component includes a first limiting block, a second limiting block, and a cutter head, with the first and second limiting blocks connected to the cutter head. The third cutting component is positioned in a first position with the rotating arm abutting against the first limiting block, and in a second position with the rotating arm abutting against the second limiting block. This stops the rotating arm, which oscillates under the force of the drive motor's output shaft-transmission belt-pulley structure, thus ensuring the third cutting component accurately stops at the first position to address the issue of grass leakage, and also ensuring the third cutting component accurately stops at the second position for trimming.

[0013] In one possible implementation, the first cutting assembly further includes a fastener for securing the rotating arm to the first limiting block when the third cutting assembly is in the first position. After the third cutting assembly completes edge trimming in the second position, the output shaft of the drive motor rotates in the reverse direction, causing the rotating arm to return to the first position and be secured to the first limiting block by the fastener. This prevents the rotating arm from swinging arbitrarily after the drive motor is de-energized, which could cause the blade of the third cutting assembly to be too close to or beyond the side of the lawn mowing equipment, thus reducing the safety risks of the lawn mowing mechanism.

[0014] In one possible implementation, the rotating arm is provided with a mounting groove, within which the drive belt and pulley are located. The mounting groove protects the drive belt and pulley from weeds and obstacles, facilitating smooth operation of the third cutting component via the drive motor's output shaft-drive belt-pulley transmission structure.

[0015] In one possible implementation, the mowing mechanism includes a transmission component, a clutch, and a drive motor. The transmission component is connected to the output shaft of the drive motor via the clutch. The drive motor is used to move a third cutting component between a first position and a second position via the transmission component. The clutch is used to disconnect the transmission component from the output shaft when the third cutting component swings to the first position or the second position. This ensures that the position of the third cutting component remains unchanged, stabilizing in the first position for preventing grass leakage, or in the second position for trimming.

[0016] Secondly, embodiments of this application propose a lawn maintenance device, including a body and a mowing mechanism as described in the first aspect, the mowing mechanism being located at the bottom of the body. A third cutting component moves between areas of missed grass and trimming areas that cannot be reached by the first and second cutting components. The third cutting component can address both trimming and missed grass issues, which helps simplify the structure of the lawn maintenance device and reduce costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the grassland operation equipment provided in the embodiments of this application; Figure 2 This is a schematic diagram of the mowing mechanism provided in this application embodiment when the third cutting component is in the first position; Figure 3 This is a schematic diagram of the mowing mechanism when the third cutting component is in the second position, as provided in the embodiments of this application. Figure 4 This is a top view of the mowing mechanism provided in this application embodiment when the third cutting component is in the first position; Figure 5 This is a bottom view of the mowing mechanism provided in this application embodiment when the third cutting component is in the first position; Figure 6 This is a top view of the mowing mechanism provided in this application embodiment when the third cutting component is in the second position; Figure 7 This is a bottom view of the mowing mechanism provided in the embodiment of this application when the third cutting component is in the second position.

[0018] Figure label: 1000 - Grassland Operation Equipment; 100-Mowing mechanism; 10-First cutting assembly; 101-First blade; 102-First blade; 103-First drive motor; 104-First cutting range; 105-Center of the first cutting assembly; 106-First limiting block; 107-Second limiting block; 20-Second cutting assembly; 201-Second blade; 202-Second blade; 203-Second drive motor; 204-Second cutting range; 205-Center of the second cutting assembly; 30-Third cutting assembly; 301-Pulley; 302-Third blade; 303-Third cutting range; 40-Mowing gap; 50-Drive belt; 60-Rotating arm; 601-Mounting slot; 200-Main body; 300-First position; 400-Second position. Detailed Implementation

[0019] For ease of understanding, the relevant technical terms involved in the embodiments of this application will be explained and described below.

[0020] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more.

[0021] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Features specified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0022] The directional terms mentioned in the embodiments of this application, such as "upper," "lower," "front," "back," "left," "right," "inner," "outer," "side," "top," and "bottom," are only for reference to the directions in the accompanying drawings. These directional terms are used to better and more clearly explain and understand the embodiments of this application, and are not intended to explicitly or implicitly suggest that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, etc., and therefore should not be construed as limiting the embodiments of this application.

[0023] With the development of smart devices, automated lawn mowing equipment, such as robotic lawnmowers, has been widely used in lawn maintenance. These devices can autonomously navigate, avoid obstacles, and complete mowing tasks, improving the efficiency of lawn management. Robotic lawnmower edge trimming technology refers to a solution for the precise trimming of lawn edges, particularly targeting areas such as boundaries, corners, and around obstacles that traditional lawnmowers cannot effectively reach. Due to safety regulations requiring robotic lawnmower blades to maintain a safe distance from the machine's edge, standard mowing operations always leave untrimmed edges. These edge areas require specialized edge trimming, including the boundary areas where the lawn meets flower beds, paths, roads, or other landscaping elements. Current edge trimming techniques include: 1. Manual edge trimming: Users need to hand-hold a dedicated edge trimmer or lawnmower to perform secondary trimming along the lawn edge; the drawbacks are low efficiency and high operator skill requirements, increasing the user's workload and time costs. 2. Boundary-based mowing system: This system requires burying boundary cables under the lawn to define the working area. The mowing robot determines the boundary position by sensing the cable signals. The drawbacks are complex installation, potential damage to the lawn structure, poor flexibility, and significant inconvenience in adjusting the working area later. 3. Detachable edge trimming device: Users can remove the main blade and replace it with a dedicated edge trimming device, which uses high-speed rotating trimming ropes to gently cut the edge area. The drawbacks are complex mechanical structure, high cost, and the need for manual intervention.

[0024] The problem of lawnmower robots missing grass is due to the non-overlapping rotation diameters of the blades, resulting in uncut areas in the middle of the blades. Current solutions for this include: 1. Offset blade arrangement: This arrangement prevents overlapping rotation diameters but allows the machine to cover the mowing area in the forward direction. The drawback is that a larger offset angle is needed to cover uncut areas, increasing the machine's size and vibration. 2. Adding an extra motor-controlled small blade: This adds an extra blade to cover the un-overlapping areas. The drawback is higher cost and increased machine complexity.

[0025] This application proposes a mowing mechanism and a lawn operation device. By setting a first cutting component, a second cutting component and a third cutting component in the mowing mechanism, and the third cutting component moving between the missed grass area and the trimming area that the first and second cutting components cannot reach, the trimming problem and the missed grass problem can be solved by a single device, which helps to simplify the structure of the lawn operation device and reduce the cost.

[0026] Figure 1 This is a schematic diagram of the structure of the grassland operation equipment 1000 provided in the embodiments of this application, see below. Figure 1The lawn mowing equipment 1000 includes a body 200, drive wheel assemblies, a vision assembly, and a mowing mechanism 100. The body 200 includes a chassis and a vehicle body. The vision assembly is mounted on the vehicle body and is used to detect obstacles in the current working path during operation. If obstacles are found, the vision assembly acquires the obstacle's feature information, generates an obstacle avoidance path based on the feature information, and controls the lawn mowing equipment 1000 to operate according to the obstacle avoidance path, thereby improving the working efficiency of the lawn mowing equipment 1000. There are two drive wheel assemblies, each detachably connected to opposite sides of the chassis to drive the lawn mowing equipment 1000 to move on the lawn surface and perform ranged operations. The mowing mechanism 100 is located within the body 200 of the lawn mowing equipment 1000 and is used for lawn mowing operations. Specifically, along the direction of travel of the grass operation equipment 1000, the drive wheel assembly and the mowing mechanism 100 can be sequentially installed on the chassis, and the mowing mechanism 100 can be located between the drive wheel assembly and the head of the machine body 200.

[0027] Figure 2 This is a schematic diagram of the structure of the mowing mechanism 100 when the third cutting component 30 is located at the first position 300, as provided in the embodiments of this application. Figure 3 This is a schematic diagram of the structure of the mowing mechanism 100 when the third cutting component 30 is located at the second position 400, as provided in the embodiments of this application. Figure 1 , Figure 2 and Figure 3 As shown, the mowing mechanism 100 may include a first cutting assembly 10, a second cutting assembly 20, and a third cutting assembly 30. The first cutting assembly 10 may include a first blade disc 101, first blades 102, and a first drive motor 103. Multiple first blades 102 are spaced circumferentially along the first blade disc 101, and the first drive motor 103 drives the first blade disc 101 to rotate. The mating structure of the first blade disc 101 and the multiple first blades 102 forms a first cutting range 104 during rotation, meaning the cutting radius of the mating structure is the radius of the first cutting range 104. The second cutting assembly 20 may include a second blade disc 201, second blades 202, and a second drive motor 203. Multiple second blades 202 are spaced circumferentially along the second blade disc 201, and the second drive motor 203 drives the second blade disc 201 to rotate. The mating structure of the second cutter head 201 and the multiple second blades 202 forms a second cutting range 204 during rotation, meaning the cutting radius of the mating structure of the second cutter head 201 and the multiple second blades 202 is the radius of the second cutting range 204. Figure 1 , Figure 2 and Figure 3As shown, a mowing gap 40 is formed between the first cutting component 10 and the second cutting component 20 along a direction parallel to the lawn to be mowed and perpendicular to the travel trajectory of the lawn mowing equipment 1000. Schematic, this direction, parallel to the lawn to be mowed and perpendicular to the travel trajectory of the lawn mowing equipment 1000, can be the width direction of the lawn mowing equipment 1000; that is, the first cutting component 10 and the second cutting component 20 can be spaced apart on the chassis of the machine body 200 along the width direction of the lawn mowing equipment 1000. The similar or equal ground clearance of the first cutting component 10 and the second cutting component 20 facilitates consistent mowing of the lawn and ensures good mowing results. By spaced apart to form the mowing gap 40, the first cutting range 104 of the first cutting component 10 does not overlap with the second cutting range 204 of the second cutting component 20, thus preventing collisions and interference between the first cutting component 10 and the second cutting component 20.

[0028] In another possible implementation, the first cutting assembly may include a first blade and a first drive motor. That is, compared to... Figure 1 , Figure 2 and Figure 3 The first cutting assembly 10 shown in this embodiment may not include the first blade disc. In this embodiment, the first blade can be directly mounted to the output shaft of the first drive motor. Compared to... Figure 2 The first blade 102 shown in this embodiment can be longer to ensure that the first cutting range of the first cutting component is sufficient to cover the lawn to be cut on the main cutting path; that is, the first blade can be a long blade. Schematic, the length of the first blade can be approximately equal to... Figure 2 The cutting radius of the mating structure of the first cutter head 101 and the first blade 102 is shown. The length of the first blade can also be changed according to the actual scenario to match the mowing needs of different scenarios, and this embodiment does not limit this. By directly mounting the first blade to the output shaft of the first drive motor, the load on the first drive motor can be reduced, which is beneficial to increasing the rotational speed of the first blade and enhancing the cutting efficiency of the mowing mechanism. Moreover, by abandoning the use of the first cutter head, the weight of the first cutting component can be reduced, which is beneficial to the lightweighting of the mowing mechanism and the reduction of costs.

[0029] In another possible implementation, the second cutting assembly may include a second blade and a second drive motor. That is, compared to Figure 1 , Figure 2 and Figure 3 The second cutting assembly 20 shown in this embodiment may not include a second blade disc. In this embodiment, the second blade can be directly mounted to the output shaft of the second drive motor. Compared to... Figure 2The second blade 202 shown in this embodiment can be longer to ensure that the second cutting range of the second cutting assembly is sufficient to cover the lawn to be cut on the main cutting path; that is, the second blade can be a long blade. Illustratively, the length of the second blade can be approximately equal to... Figure 2 The cutting radius of the mating structure between the second cutter head 201 and the second blade 202 is shown. The length of the second blade can also be changed according to the actual scenario to match the mowing needs of different scenarios; this embodiment does not limit this. By directly mounting the second blade to the output shaft of the second drive motor, the load on the second drive motor can be reduced, which is beneficial to increasing the rotational speed of the second blade and enhancing the cutting efficiency of the mowing mechanism. Furthermore, by abandoning the use of the second cutter head, the weight of the second cutting component can be reduced, which is beneficial to the lightweighting of the mowing mechanism and the reduction of costs.

[0030] Figure 4 This is a top view of the lawn mowing mechanism 100 when the third cutting component 30 provided in this application embodiment is located in the first position 300. Figure 5 This is a bottom view of the mowing mechanism 100 when the third cutting component 30 provided in this application embodiment is located in the first position 300, combined with... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the third cutting component 30 can move relative to the first cutting component 10 and the second cutting component 20. That is, the first cutting component 10 can remain relatively stationary with respect to the second cutting component 20, and the distance between the third cutting component 30 and the first cutting component 10 can change, as can the distance between the third cutting component 30 and the second cutting component 20. Indicatively, the third cutting component 30 can be movably connected to the chassis of the machine body 200, or it can be movably connected to the first cutting component 10, or it can be movably connected to the second cutting component 20. Any implementation that allows the third cutting component 30 to move relative to the first cutting component 10 and the second cutting component 20 is acceptable, and this application does not impose any limitations on this. Specifically, the third cutting component 30 can be used to move between a first position 300 and a second position 400. When the third cutting component 30 is in the first position 300, the cutting range of the third cutting component 30 intersects with the trajectory generated by the mowing gap 40 along the traveling direction of the grass-cutting equipment 1000. Schematic illustration: There are two scenarios where the third cutting range 303 of the third cutting component 30 intersects with the trajectory generated by the mowing gap 40 along the traveling direction of the lawn operating equipment 1000. In one possible implementation, the third cutting range 303 can be located on the same plane as the mowing gap 40, meaning the ground clearance of the first cutting component 10, the second cutting component 20, and the third cutting component 30 is similar or equal. This allows the first cutting component 10, the second cutting component 20, and the third cutting component 30 to perform mowing operations on lawns within the same height range, effectively avoiding missed mowing areas. In another possible implementation, the third cutting range 303 can be located on a different plane from the mowing gap 40, meaning the ground clearance of the first cutting component 10 and the second cutting component 20 is similar or equal, but the ground clearance of the third cutting component 30 is different from that of the first cutting component 10 and the second cutting component 20. The plane of the third cutting range 303 is parallel to the plane of the mowing gap 40. The first cutting component 10 and the second cutting component 20 can perform mowing operations on the lawn in the first height range, and the third cutting component 30 can perform mowing operations on the lawn in the second height range.

[0031] Figure 6 This is a top view of the lawn mowing mechanism 100 when the third cutting component 30 provided in this application embodiment is located in the second position 400. Figure 7 This is a bottom view of the mowing mechanism 100 when the third cutting component 30 provided in this embodiment is in the second position 400. (In conjunction with...) Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, the third cutting component 30 is in the second position 400, and along a direction perpendicular to the travel trajectory of the lawn mowing equipment 1000, the cutting range of the third cutting component 30 exceeds the cutting range of the first cutting component 10 and the second cutting component 20. The direction perpendicular to the travel trajectory of the lawn mowing equipment 1000 is parallel to the lawn to be mowed, that is, the direction can be the width direction of the lawn mowing equipment 1000. Specifically, along the width direction of the lawn mowing equipment 1000, the cutting range combined with the first cutting range 104 and the second cutting range 204 has a first width, and the cutting range combined with the first cutting range 104, the second cutting range 204, and the third cutting range 303 has a second width, the second width being greater than the first width. This facilitates the lawn mowing mechanism 100 to perform fine trimming on lawn edge areas, such as boundaries, corners, and areas around obstacles. This embodiment of the application moves the third cutting component 30 between a first position 300 and a second position 400. When the third cutting component 30 is in the first position 300, it can cover the mowing gap 40 between the first cutting component 10 and the second cutting component 20, and can cut away any missed grass areas in the middle. When the third cutting component 30 is in the second position 400, it can cover the edge areas of the machine body 200 that the first cutting component 10 and the second cutting component 20 cannot reach, and can repair the grass around boundaries, corners, and obstacles. This allows the mowing mechanism 100 to solve both edge trimming and missed grass problems with an additional set of cutting components, which helps to simplify the structure of the lawn operation equipment 1000 and reduce costs.

[0032] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in one possible implementation, the third cutting component 30 is located at the first position 300, between the first cutting component 10 and the second cutting component 20. Schematic, the third cutting component 30 can be at the same level as the first cutting component 10, i.e., at the same height from the ground; or the third cutting component 30 can be at a different level from the first cutting component 10, i.e., at different heights from the ground. Along the travel direction of the lawn mowing equipment 1000, the cutting range combined with the first cutting range 104 and the second cutting range 204 has a third width, and the cutting range combined with the first cutting range 104, the second cutting range 204, and the third cutting range 303 has a fourth width, the third width being equal to the fourth width. This allows the third cutting component 30 to simultaneously work on any missed lawn areas along the mowing gaps 40 while the first cutting component 10 and the second cutting component 20 are operating along the main mowing path, preventing the lawn from being trampled or disturbed again.

[0033] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in one possible implementation, the third cutting component 30 is spaced apart from the first cutting component 10 along a direction perpendicular to the lawn to be mowed. That is, in the vertical direction, the third cutting component 30 is staggered from the first cutting component 10 and the second cutting component 20, and the rotation trajectories of the third cutting component 30 and the first and second cutting components 20 are layered, which can eliminate the possibility of direct collision between the third cutting component 30 and the first and second cutting components 20. Furthermore, this embodiment utilizes the three-dimensional space along the height direction between the first and second cutting components 10 and arranges the third cutting component 30, without additionally increasing the cutting width or front overhang length of the mowing mechanism 100, making the mowing mechanism 100 more compact overall. This improves the maneuverability of the mowing mechanism 1000 when turning in narrow areas or around obstacles. Furthermore, when there is a height difference between the third cutting component 30 and the first cutting component 10, for example, when the third cutting component 30 is higher than the first cutting component 10, the third cutting component 30 can cut the top of the grass first, and the first cutting component 10 can then cut the middle and lower part and the edges of the grass. This layered cutting can reduce the load of a single cut, making the cutting process of the mowing mechanism 100 smoother, and is suitable for dense or wet lawns.

[0034] Combination Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, in one possible implementation, the third cutting component 30 is positioned at the second position 400, extending beyond the body 200 along a direction perpendicular to the travel trajectory of the lawn mowing equipment 1000. That is, along the width direction of the lawn mowing equipment 1000, the third cutting range 303 at least partially extends beyond the body 200 of the lawn mowing equipment 1000. The third cutting component 30 can expand the overall cutting width of the mowing mechanism 100, which helps ensure that the third cutting component 30 repairs the edge areas of the body 200 that the first cutting component 10 and the second cutting component 20 cannot reach, ultimately achieving a good edge trimming effect.

[0035] Combination Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, in one possible implementation, along the travel direction of the lawn mowing equipment 1000, the cutting range of the third cutting component 30 does not overlap with the cutting range of the first cutting component 10, nor with the cutting range of the second cutting component 20. That is, the cutting path of the third cutting component 30 neither overlaps with the cutting path of the first cutting component 10 nor with the cutting path of the second cutting component 20. Illustratively, the third cutting range 303 may be tangent to or separate from the first cutting range 104, or the third cutting range 303 may be tangent to or separate from the second cutting range 204. This can maximize the cutting range of the mowing mechanism 100 and further improve the trimming effect of the mowing mechanism 100.

[0036] Combination Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in one possible implementation, when the third cutting component 30 moves between the first position 300 and the second position 400, the movement trajectory of the third cutting component 30 is concentric with that of the first cutting component 10, that is, the third cutting component 30 rotates around the center 105 of the first cutting component 10. Alternatively, the movement trajectory of the third cutting component 30 is concentric with that of the second cutting component 20, that is, the third cutting component 30 rotates around the center 205 of the second cutting component 20. The third cutting component 30 needs to move from between the two main cutting components to the outside of the machine body 200 for trimming within a compact chassis space. The third cutting component 30 rotates around the center 105 of the first cutting component 10 or the center 205 of the second cutting component 20, and this movement trajectory is a planar fan shape. This can ensure that the movement of the third cutting component 30 does not interfere with the first cutting component 10 and the second cutting component 20, while reducing the movement space occupied by the third cutting component 30, which is beneficial to the compact layout of the mowing mechanism 100.

[0037] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 ,and Figure 6As shown, in one possible implementation, the mowing mechanism 100 may include a drive belt 50 and a rotating arm 60. The first cutting assembly 10 includes a first drive motor 103 and a bearing, and the third cutting assembly 30 includes a pulley 301 and a third blade 302. The bearing is sleeved on the output shaft of the first drive motor 103, and the drive belt 50 is sleeved on the inner ring of the bearing and the pulley 301. The rotational momentum of the output shaft can be transmitted to the drive belt 50 through the inner ring of the bearing, and the drive belt 50 transmits the rotational momentum to the pulley 301, thereby causing the pulley 301 to rotate with the output shaft of the first drive motor 103. The pulley 301 is rotatably connected to the rotating arm 60, and the rotating arm 60 is rotatably connected to the outer ring of the bearing. That is, the rotating arm 60 can rotate relative to the outer ring of the bearing and the stator of the first drive motor 103, and the pulley 301 can rotate relative to the rotating arm 60, the outer ring of the bearing, and the stator of the first drive motor 103. The third blade 302 is connected to the pulley 301. The third blade 302 and the pulley 301 rotate together under the action of the transmission belt 50 to form the third cutting range 303 of the third cutting assembly 30. That is, the radius of the third cutting range 303 is equal to the farthest distance between the rotation center of the pulley 301 and the outer end of the third blade 302. In another possible embodiment, the third cutting assembly 30 may include a transmission member and a trimming rope. The trimming rope is threaded through the transmission member, meaning a portion of the trimming rope protrudes from the transmission member. The output shaft of the first drive motor 103 is connected to the transmission member, and the transmission member is connected to the trimming rope. That is, the transmission member can transmit the output momentum of the first drive motor 103 to the trimming rope to form the third cutting range, enabling the third cutting assembly 30 to complete the anti-leaking grass operation and trimming operation. Schematic, the transmission member can be a winch.

[0038] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 ,and Figure 6As shown, in one possible implementation, along the width direction of the grass-cutting equipment 1000, and in the direction from the outside of the machine body 200 to the inside of the machine body 200, the second position 400 and the first position 300 are sequentially arranged. Along the traveling direction of the grass-cutting equipment 1000, the second position 400 and the first position 300 are also sequentially arranged, i.e., the first position 300 is located to the right front of the second position 400. When the output shaft rotates clockwise, the rotational momentum drives the third blade 302 and the pulley 301 to rotate clockwise. Simultaneously, the pulley 301 can drive the rotating arm 60 to swing clockwise relative to the outer ring of the bearing, causing the third cutting assembly 30 to move away from the second position 400 and towards the first position 300. That is, the output shaft can be used to rotate clockwise to make the third cutting assembly 30 swing to the first position 300, and the output shaft can be used to rotate counterclockwise to make the third cutting assembly 30 swing to the second position 400. This embodiment of the application, by reusing the bearing and using the forward and reverse rotation of the output shaft of the drive motor, can simultaneously drive the third blade 302 to rotate and change the position of the third cutting component 30, eliminating the need for a second drive motor and reducing the cost and structural complexity of the mowing mechanism 100. In another possible implementation, along the width direction of the lawn mowing equipment 1000, and in the direction from the outside of the body 200 to the inside of the body 200, the second position 400 and the first position 300 are sequentially arranged. Along the traveling direction of the lawn mowing equipment 1000, the first position 300 and the second position 400 are sequentially arranged, i.e., the first position 300 is located to the right rear of the second position 400. The output shaft can be used to rotate clockwise to swing the third cutting component 30 from the first position 300 to the second position 400, and the output shaft can be used to rotate counterclockwise to swing the third cutting component 30 from the second position 400 to the first position 300.

[0039] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 ,and Figure 6As shown, in one possible implementation, the second cutting assembly 20 includes a second drive motor 203 and a bearing, and the third cutting assembly 30 includes a pulley 301 and a third blade 302. The bearing is sleeved on the output shaft of the second drive motor 203, and a transmission belt 50 is sleeved on the inner ring of the bearing and the pulley 301. The rotational momentum of the output shaft can be transmitted to the transmission belt 50 through the inner ring of the bearing, and the transmission belt 50 transmits the rotational momentum to the pulley 301, thereby causing the pulley 301 to rotate with the output shaft of the second drive motor 203. Along the width direction of the grass-cutting equipment 1000, and in the direction from the outside of the machine body 200 to the inside of the machine body 200, the second position 400 and the first position 300 are sequentially arranged. Along the traveling direction of the grass-cutting equipment 1000, the second position 400 and the first position 300 are sequentially arranged, that is, the first position 300 is located to the left front of the second position 400. The output shaft of the second drive motor 203 can be used to rotate clockwise to cause the third cutting component 30 to swing from the first position 300 to the second position 400, and the output shaft can be used to rotate counterclockwise to cause the third cutting component 30 to swing from the second position 400 to the first position 300. In another possible embodiment, along the width direction of the grass-cutting equipment 1000, in the direction from the outside of the machine body 200 to the inside of the machine body 200, the second position 400 and the first position 300 are sequentially arranged. Along the traveling direction of the grass-cutting equipment 1000, the first position 300 and the second position 400 are sequentially arranged, that is, the first position 300 is located to the left and rear of the second position 400. The output shaft of the second drive motor 203 can be used to rotate clockwise to cause the third cutting component 30 to swing from the second position 400 to the first position 300, and the output shaft can be used to rotate counterclockwise to cause the third cutting component 30 to swing from the first position 300 to the second position 400. All of the above can be achieved by using a single drive motor to switch the third cutting component 30 between the anti-leaking grass area and the trimming area, thus addressing both the trimming and grass leakage issues. This simplifies the structure of the lawn operation equipment 1000 and reduces costs.

[0040] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 ,and Figure 6As shown, in one possible implementation, the first cutting assembly 10 includes a first limiting block 106, a second limiting block 107, and a first cutter head 101. The first limiting block 106 and the second limiting block 107 are connected to the first cutter head 101. The third cutting assembly 30 is in a first position 300, with the rotating arm 60 abutting against the first limiting block 106. The third cutting assembly 30 is in a second position 400, with the rotating arm 60 abutting against the second limiting block 107. Specifically, when the rotating arm 60 swings between the first limiting block 106 and the second limiting block 107, the inner ring of the bearing can act as a transmission wheel, transmitting the output power of the first drive motor 103 to the pulley 301 of the third cutting assembly 30 via a transmission belt 50 fitted onto the inner ring of the bearing, thereby causing the third blade 302 to rotate. Meanwhile, the outer ring of the bearing can serve as the fulcrum for the swing arm 60. The swing arm 60 and the third cutting component 30 swing around the bearing as their axis. When the swing arm 60 abuts against the first limiting block 106 or the second limiting block 107, the swinging force of the swing arm 60 is reversed by the supporting force of the first limiting block 106 or the second limiting block 107 on the swing arm 60, thus stopping the swing of the swing arm 60. This helps to ensure that the third cutting component 30 accurately stops at the first position 300 to solve the problem of missing grass, and also ensures that the third cutting component 30 accurately stops at the second position 400 for trimming.

[0041] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 ,and Figure 6 As shown, in one possible implementation, the first cutting assembly 10 further includes a fastener for fixing the rotating arm 60 to the first limiting block 106 when the third cutting assembly 30 is in the first position 300. After the third cutting assembly 30 completes edge trimming in the second position 400, the output shaft of the drive motor rotates in the reverse direction, causing the rotating arm 60 to return to the first position 300, thereby retracting the third cutting assembly 30 from outside the machine body 200 to the chassis. The rotating arm 60 is fixed to the first limiting block 106 by the fastener, that is, the third cutting assembly 30 is fixed in the first position 300. This prevents the rotating arm 60 from swinging arbitrarily under inertia after the drive motor is de-energized, which could cause the blade of the third cutting assembly 30 to be too close to or beyond the side of the lawn mowing equipment 1000, thus reducing the safety risk of the lawn mowing mechanism 100.

[0042] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 ,and Figure 6As shown, in one possible implementation, the rotating arm 60 is provided with a mounting groove 601, and the transmission belt 50 and pulley 301 are both located within the mounting groove 601. The mounting groove 601 can protect the transmission belt 50 and pulley 301 from interference by weeds and obstacles, which is conducive to the smooth operation of the third cutting assembly 30 by the transmission structure of the output shaft of the drive motor-transmission belt 50-pulley 301.

[0043] The above embodiments describe how the third cutting component 30 is switched between the grass-prevention area (first position 300) and the trimming area (second position 400) using the drive motor of the main cutting component (first cutting assembly 10 or second cutting assembly 20), and how the third cutting component 30 is driven to mow the grass. That is, the third cutting component 30 reuses the existing drive motor of the main cutting component without introducing a new drive motor. Embodiments of this application may also introduce additional drive motors to drive the third cutting component 30 for position switching and mowing operations respectively. Combined with... Figure 1 , Figure 2 and Figure 3 As shown, in one possible implementation, the third cutting assembly 30 may include a third drive motor, and the mowing mechanism 100 may include a transmission component, a clutch, and a fourth drive motor. The output shaft of the third drive motor can be connected to the third blade 302 to drive the third blade 302 to rotate and complete the mowing operation. The transmission component can be connected to the output shaft of the fourth drive motor via the clutch. The fourth drive motor can be used to move the third cutting assembly 30 between a first position 300 and a second position 400 via the transmission component. The clutch can be used to disconnect the transmission component and the output shaft of the fourth drive motor when the third cutting assembly 30 swings to the first position 300 or to the second position 400. This makes the third cutting assembly 30 no longer subject to the action of the fourth drive motor, and the position of the third cutting assembly 30 no longer changes. The third cutting assembly 30 can be stably positioned at the first position 300 for anti-leaking grass operation or stably positioned at the second position 400 for trimming operation.

[0044] In summary, combining Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment of the application, by moving the third cutting component 30 between the first position 300 (leaked grass area) and the second position 400 (trimming area) that the first cutting component 10 and the second cutting component 20 cannot reach, the third cutting component 30 can solve both the trimming problem and the leftover grass problem, which is beneficial to simplifying the structure of the lawn operation equipment 1000 and reducing costs.

[0045] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application 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 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 application.

Claims

1. A mowing mechanism for use on the body of a lawn mowing equipment for lawn mowing operations, characterized in that, include: The first cutting component, the second cutting component, and the third cutting component are positioned in a direction parallel to the lawn to be cut and perpendicular to the travel trajectory of the lawn cutting equipment, with a mowing gap formed between the first cutting component and the second cutting component. The third cutting component is used to move between a first position and a second position. When the third cutting component is in the first position, the cutting range of the third cutting component intersects with the trajectory generated by the mowing gap along the travel direction of the grass operating equipment. When the third cutting component is in the second position, along a direction perpendicular to the travel trajectory of the grass operating equipment, the cutting range of the third cutting component exceeds the cutting range of the first cutting component and the cutting range of the second cutting component.

2. The lawnmowing mechanism according to claim 1, characterized in that, The third cutting component is located at the first position, and the third cutting component is located between the first cutting component and the second cutting component.

3. The lawnmowing mechanism according to claim 2, characterized in that, The third cutting component is spaced apart from the first cutting component along a direction perpendicular to the lawn to be cut.

4. The lawnmower mechanism according to claim 1, characterized in that, The third cutting component is located in the second position, extending out of the machine body along a direction perpendicular to the travel trajectory of the grass operation equipment.

5. The lawnmowing mechanism according to claim 4, characterized in that, Along the direction of travel of the grass operation equipment, the cutting range of the third cutting component does not overlap with the cutting range of the first cutting component, nor with the cutting range of the second cutting component.

6. The lawnmower mechanism according to any one of claims 1-5, characterized in that, When the third cutting component moves between the first position and the second position, the movement trajectory of the third cutting component is concentric with that of the first cutting component, or the movement trajectory of the third cutting component is concentric with that of the second cutting component.

7. The lawnmowing mechanism according to claim 6, characterized in that, The mowing mechanism includes a drive belt and a rotating arm. The first cutting assembly includes a drive motor and a bearing. The third cutting assembly includes a pulley and a blade. The bearing is sleeved on the output shaft of the drive motor. The drive belt is sleeved on the inner ring of the bearing and the pulley. The blade is connected to the pulley. The pulley is rotatably connected to the rotating arm. The rotating arm is rotatably connected to the outer ring of the bearing. The output shaft is used to rotate clockwise to make the third cutting assembly swing to the first position. The output shaft is used to rotate counterclockwise to make the third cutting assembly swing to the second position.

8. The lawnmowing mechanism according to claim 7, characterized in that, The first cutting assembly includes a first limiting block, a second limiting block, and a cutter head, with the first limiting block and the second limiting block connected to the cutter head; the third cutting assembly is in the first position, with the rotating arm abutting against the first limiting block, and the third cutting assembly is in the second position, with the rotating arm abutting against the second limiting block.

9. The lawnmowing mechanism according to claim 8, characterized in that, The first cutting assembly further includes a fastener for securing the rotating arm to the first limiting block when the third cutting assembly is in the first position.

10. The lawnmower mechanism according to claim 7, characterized in that, The rotating arm is provided with a mounting groove, and the transmission belt and the pulley are both located in the mounting groove.

11. The lawnmower mechanism according to claim 6, characterized in that, The mowing mechanism includes a transmission component, a clutch, and a drive motor. The transmission component is connected to the output shaft of the drive motor via the clutch. The drive motor is used to move the third cutting component between the first position and the second position via the transmission component. The clutch is used to disconnect the transmission component and the output shaft when the third cutting component swings to the first position or swings to the second position.

12. A lawn mowing device, comprising a body and a mowing mechanism as described in any one of claims 1-11, characterized in that, The mowing mechanism is located at the bottom of the machine body.

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