Cutting mechanism, mowing robot and mowing robot system

Abstract

The application provides a cutting mechanism, a mowing robot and a mowing robot system. The cutting mechanism comprises a cutter disc body, the cutter disc body is provided with at least one blade mounting part, and the blade mounting part is configured to be connected with a blade; the cutter disc body has a first end face, and the blade mounting part is located at a peripheral region of the first end face; wherein the peripheral region of the first end face is further provided with at least one avoiding recess, and the avoiding recess is used for providing an avoiding space for a lifting part of the blade when the blade rotates relative to the cutter disc body. The cutting mechanism provided by the application solves the technical problem that noise is easily generated when the cutter disc operates in the prior art.

Description

Technical Field

[0001] This application belongs to the field of garden equipment technology, and more specifically, relates to a cutting mechanism, a lawn mowing robot, and a lawn mowing robot system. Background Technology

[0002] Lawn mowers are common gardening equipment used for cutting lawn vegetation. In existing lawn mowers, the blades are mounted on a cutter head. Because the blades are often hinged to the cutter head, they may interfere with the periphery of the cutter head. Furthermore, the cutter head is prone to abnormal vibrations during operation, generating noise and affecting the stability of the equipment's operation. Utility Model Content

[0003] The purpose of this application is to provide a cutting mechanism, a lawn mowing robot, and a lawn mowing robot system to solve the technical problem that the cutter head is prone to generating noise during operation in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: a cutting mechanism is provided, including a cutter head body, the cutter head body having at least one blade mounting portion configured to be connected to a blade; the cutter head body having a first end face, the blade mounting portion being located in the peripheral area of ​​the first end face; wherein, the peripheral area of ​​the first end face is further provided with at least one clearance recess, the clearance recess being used to provide clearance space for the raised portion of the blade when the blade rotates relative to the cutter head body.

[0005] In one optional embodiment, the cutter head body is provided with a plurality of blade mounting portions, which are spaced apart along the height direction of the cutter head body to form at least two cutting trajectories at different heights of the cutter head body.

[0006] In an optional embodiment, the cutter head body further has a second end face opposite to the first end face, and the blade mounting portion is located in the peripheral area of ​​the first end face and the peripheral area of ​​the second end face, and the projections of the multiple blade mounting portions in the horizontal plane do not overlap.

[0007] In one alternative embodiment, the blade mounting portion protrudes into the clearance recess; and / or, the blade mounting portion is located on one side of the clearance recess, the side of the clearance recess near the blade mounting portion is inclined and smoothly connected to the blade mounting portion.

[0008] In one optional embodiment, the clearance recess is recessed into the first end face of the cutter head body, and the bottom wall of the clearance recess protrudes from the second end face of the cutter head body opposite to the first end face.

[0009] In one alternative embodiment, the periphery of the cutter head body is provided with an annular flange that protrudes from the second end face.

[0010] In one alternative embodiment, the protrusion height of the annular flange is greater than the protrusion height of the bottom wall of the avoidance recess; and / or, the upper surface of the annular flange is a plane.

[0011] In one optional embodiment, a recess is provided in the middle region of the first end face, and a cutter head mounting part is provided in the recess. Along the thickness direction of the cutter head body, the distance between the blade mounting part and the cutter head mounting part is 5mm~10mm.

[0012] In one alternative embodiment, the sidewall of the recess is inclined and located between the blade mounting portion and the cutter head mounting portion; and / or, the cross-sectional area of ​​the recess gradually decreases along the thickness direction from the blade mounting portion to the cutter head mounting portion.

[0013] In an optional embodiment, the first end face of the cutter head body is further provided with at least one limiting structure, the limiting structure having at least one limiting part, the limiting part being used to limit the rotation angle of the blade.

[0014] In one optional embodiment, the blade mounting portion is provided with a connecting hole for connecting to the blade; the distance between the limiting structure and the periphery of the cutter head body is greater than the distance between the connecting hole and the periphery of the cutter head body; or, the distance between the limiting portion and the periphery of the cutter head body is greater than the distance between the connecting hole and the periphery of the cutter head body.

[0015] In one alternative embodiment, the surface of the limiting structure facing away from the first end face protrudes from the blade mounting portion; and / or, the limiting portion is a curved surface or a plane disposed on the side wall of the limiting structure.

[0016] In one optional embodiment, the first end face of the cutter head body is provided with a first blade mounting portion and a second blade mounting portion, and a limiting structure is located between the first blade mounting portion and the second blade mounting portion; the limiting structure is provided with a first limiting portion and a second limiting portion, the first limiting portion is used to limit the stroke of the blade connected to the first blade mounting portion in the first rotation direction, and the second limiting portion is used to limit the stroke of the blade connected to the second blade mounting portion in the second rotation direction.

[0017] In one optional embodiment, a first limiting structure and a second limiting structure are provided on the first end face, and the blade mounting portion is located between the first limiting structure and the second limiting structure; the first limiting structure is used to limit the stroke of the blade connected to the blade mounting portion in the first rotation direction; the second limiting structure is used to limit the stroke of the blade connected to the blade mounting portion in the second rotation direction.

[0018] In one alternative embodiment, at least a portion of the first limiting structure is located in the peripheral region of the first end face, and at least a portion of the second limiting structure is located in the middle region of the first end face.

[0019] In an alternative embodiment, at least one blade is further included, which is rotatably connected to the blade mounting portion and extends beyond the periphery of the cutter head body.

[0020] In one optional embodiment, the blade includes a mounting section having a mounting surface that mates with the blade mounting portion; the first end face of the cutter head body is further provided with at least one limiting structure, the limiting structure being spaced apart from the periphery of the cutter head body, the limiting structure having at least one limiting portion, and when the blade rotates along the first rotation direction, the limiting portion abuts against the mounting section to limit the blade.

[0021] In an optional embodiment, the blade further includes a transition section and a cutting section; the transition section is connected to one end of the mounting section, and the cutting section is connected to the end of the transition section away from the mounting section. The cutting section has opposing first and second sides, the first side being provided with a cutting edge, and the cutting section is arc-shaped and raised along the direction from the first side to the second side.

[0022] Another objective of this application is to provide a lawn mowing robot, including a drive mechanism and a cutting mechanism as described above, with the blade body connected to the output end of the drive mechanism.

[0023] Another objective of this application is to provide a lawnmower robot system, including a base station and a lawnmower robot as described above, wherein the base station is at least used for charging the lawnmower robot.

[0024] The beneficial effects of the cutting mechanism, lawn mowing robot, and lawn mowing robot system provided in this application are as follows: Compared with the prior art, the cutting mechanism of this application provides a blade mounting part in the peripheral area of ​​the first end face of the blade disc body for connecting the blade; at the same time, a clearance recess 15 is also provided in the peripheral area of ​​the first end face. The clearance recess 15 can provide clearance space for the raised part of the blade 20. When the blade 20 rotates and swings relative to the blade disc body 10, the clearance recess 15 can effectively avoid the blade 20, reducing the mechanical interference between the blade 20 and the blade disc body 10. The equipment runs more smoothly under high-speed rotation, reducing vibration and noise, and improving the operating efficiency of the equipment. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 Schematic diagram of the cutting mechanism provided in the first embodiment of this application Figure 1 ; Figure 2 Schematic diagram of the cutting mechanism provided in the first embodiment of this application Figure 2 ; Figure 3 for Figure 1 Schematic diagram of the cutter head body of the cutting mechanism shown. Figure 1 ; Figure 4 for Figure 1 Schematic diagram of the cutter head body of the cutting mechanism shown. Figure 2 ; Figure 5 for Figure 1 Schematic diagram of the cutter head body of the cutting mechanism shown. Figure 3 ; Figure 6 for Figure 1 A schematic diagram of the blade structure of the cutting mechanism shown; Figure 7 A schematic diagram of the cutter head body of the cutting mechanism provided in the second embodiment of this application; Figure 8 Schematic diagram of the cutting mechanism provided in the third embodiment of this application Figure 1 .

[0027] The following are the labeling elements in the figure: 100-Cutting mechanism; 101-Cutter disc; 10-Cutter disc body; 11-First end face; 12-Second end face; 13-Blade mounting part; 13a-First blade mounting part; 13b-Second blade mounting part; 131-Connecting hole; 14-Recessed part; 141-Cutter disc mounting part; 15-Avoidance recess; 151-Side wall; 16-Annular flange; 17-Limiting structure; 171-Limiting part; 171a-First limiting part; 171b-Second limiting part; 17a-First limiting structure; 17b-Second limiting structure; 20-Blade; 21-Mounting section; 211-Mounting surface; 22-Transition section; 23-Cutting section; 231-First side; 2311-Blade edge; 232-Second side. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Figures 1 to 6 The cutting mechanism 100 provided in the first embodiment of this application is shown.

[0033] like Figure 1 and 2 As shown, the cutting mechanism 100 includes at least a cutter head 101, which is rotatable about its rotation center. The cutter head 101 includes a cutter head body 10, which is provided with at least one blade mounting portion 13. The blade mounting portion 13 can be used to connect with a blade 20. When the cutter head body 10 rotates, it can drive the blade 20 connected thereto to rotate, thereby performing a cutting operation.

[0034] The cutter head body 10 has a first end face 11 and a second end face 12, as shown below. Figure 3 As shown, the peripheral area of ​​the first end face 11 is provided with at least one blade mounting portion 13; wherein, the peripheral area of ​​the first end face 11 is also provided with at least one clearance recess 15, the clearance recess 15 is used to provide clearance space for the raised portion of the blade 20 when the blade 20 rotates relative to the blade body 10.

[0035] The cutter head body 10 is the component that supports the blade 20. The cutter head body 10 is generally designed in a disc shape to accommodate the rotating cutting requirements of the blade 20. The first end face 11 of the cutter head body 10 refers to the lower end face of the cutter head body 10 along the thickness direction (this end face faces the working surface after assembly).

[0036] The peripheral area of ​​the first end face 11 refers to the annular area near the edge of the cutter head body 10. A blade mounting part 13 is provided in this area, and the blade 20 is mounted on the cutter head body 10 through the blade mounting part 13. When the cutter head body 10 rotates, the blade 20 can swing under the action of centrifugal force to cut the lawn vegetation.

[0037] The blade mounting portion 13 can specifically employ a bolt hole or hinge structure, allowing the blade 20 to be rotatably connected to the cutter head body 10. It should be noted that in other embodiments, the blade 20 can also be fixed to the cutter head body 10. The number of blade mounting portions 13 can match the number of blades 20; two, three, or more can be provided. In some embodiments, three blade mounting portions 13 are provided (e.g., ...). Figure 2 As shown), the three blades 20 are respectively connected to the three blade mounting parts 13.

[0038] The periphery of the first end face 11 is also provided with a relief recess 15 to avoid the raised portion of the blade 20. The raised portion of the blade 20 refers to the upward-curving or bent structure of the blade 20, such as some blades designed with a bent cutting edge; it can also refer to the part of the blade 20 that is raised after it is installed at an angle.

[0039] For example, in Figure 6 In the illustrated embodiment, the blade 20 includes a connected mounting section 21 and a cutting section 23. The mounting section 21 has a mounting surface 211 that mates with the blade mounting portion 13. The cutting section 23 is arc-shaped and protruding, which can be the protruding portion of the blade 20. When the blade 20 is rotatably connected to the cutter head body 10, because the cutting section 23 is arc-shaped and protruding, if the rotation axis of the blade 20 is tilted relative to the rotation axis of the cutter head body 10, the cutting section 23 is prone to mechanical interference with the cutter head body 10. The clearance recess 15 can provide clearance space for the protruding portion of the blade 20.

[0040] For example, in some other embodiments, the blade 20 includes a connected mounting section 21 and a cutting section 23. Along the normal of the mounting surface 211, the height of a portion of the structure on the cutting section 23 is greater than the height of the mounting surface 211. In this case, the portion of the cutting section 23 that is higher than the mounting surface 211 of the blade 20 can serve as a raised portion of the blade 20.

[0041] The recess 15 can be a groove, a pit, a notch, or a stepped surface, as long as it can avoid the raised part of the blade 20.

[0042] When the blade 20 rotates and swings relative to the cutter head body 10, the clearance recess 15 can provide clearance space for the raised part of the blade 20, preventing the blade 20 from rigidly colliding with the cutter head body 10. This design effectively reduces mechanical interference between the blade 20 and the cutter head body 10, and reduces vibration and noise.

[0043] The number of clearance recesses 15 can be matched with the number of blades 20. In some embodiments, such as Figure 3 It is provided with three clearance recesses 15, which are arranged alternately with three blade mounting parts 13 to provide clearance space for the three blades 20 respectively.

[0044] When in use, the blade 20 is installed on the blade mounting part 13. The length of the blade 20 extends beyond the edge of the cutter head body 10. After starting, the cutter head 101 rotates at high speed, and the blade 20 swings under the action of centrifugal force, thereby cutting the lawn. The avoidance recess 15 provides avoidance space for the blade 20, which can effectively avoid the raised part of the blade 20, so as to ensure that the equipment runs smoothly under high-speed rotation and reduce noise.

[0045] The cutter head 101 structure with the avoidance recess 15 can effectively adapt to blades 20 with curved structures or tilted installation angles, which can improve the versatility and flexibility of the cutter head body 10 in installing different types of blades 20, and improve the smooth operation and work efficiency of the cutting mechanism 100.

[0046] Compared with the prior art, the cutting mechanism 100 provided in this application embodiment provides a blade mounting part 13 in the peripheral area of ​​the first end face 11 of the cutter head body 10 to connect the blade 20. At the same time, a clearance recess 15 is also provided in the peripheral area of ​​the first end face 11. The clearance recess 15 can provide clearance space for the raised part of the blade 20. When the blade 20 rotates and swings relative to the cutter head body 10, the clearance recess 15 can effectively avoid the blade 20, reducing the mechanical interference between the blade 20 and the cutter head body 10. The equipment runs more smoothly under high-speed rotation, reducing vibration and noise, and improving the operating efficiency of the equipment.

[0047] In some embodiments of this application, the blade mounting portion 13 protrudes into the relief recess 15.

[0048] By placing the blade mounting part 13 directly inside the clearance recess 15, the additional mounting structure around the blade disc body 10 is avoided, which can achieve structural integration, save space, and improve structural compactness. At the same time, the blade mounting part 13 is not exposed, and the overall appearance is simpler.

[0049] The blade mounting part 13 protrudes from the relief recess 15, so a relief space is naturally formed around the blade mounting part 13. After the blade 20 is installed, the raised part of the blade 20 can be directly avoided.

[0050] Please refer to some embodiments of this application. Figures 3 to 5 The blade mounting portion 13 is located on one side of the clearance recess 15. The side of the clearance recess 15 near the blade mounting portion 13 is inclined and smoothly connected to the blade mounting portion 13.

[0051] The blade mounting portion 13 and the clearance recess 15 are arranged adjacent to each other, and the sidewall 151 of the clearance recess 15 and the blade mounting portion 13 form a smoothly transitioning curved surface structure. During high-speed rotation, the airflow around the cutter head body 10 will generate turbulence and eddies due to structural abrupt changes (such as right angles and edges), resulting in aerodynamic noise. The smoothly transitioning curved surface between the clearance recess 15 and the blade mounting portion 13 can form a more streamlined surface that conforms to fluid dynamics, allowing air to flow more smoothly through the clearance recess 15 area, reducing eddies and pressure pulsations, significantly reducing noise during high-speed rotation, and achieving a noise reduction effect.

[0052] The sloping and smooth transition structure helps guide grass clippings smoothly through the avoidance recess 15 area, reducing accumulation or blockage, improving cutting efficiency and cleanliness. At the same time, it can guide stress to be transmitted more evenly from the blade mounting part 13 (stress concentration area) to other parts of the cutter head body 10, avoiding abrupt stress changes at the connection point, thereby improving the mechanical stability of the overall structure.

[0053] Please refer to some embodiments of this application. Figure 2 and Figure 5 Along the thickness direction from the blade mounting portion 13 to the cutter head mounting portion 141, the cross-sectional area of ​​the clearance recess 15 gradually decreases.

[0054] It should be noted that the thickness direction X (e.g., along the blade mounting portion 13 to the cutter head mounting portion 141) is... Figure 5 As shown), the thickness direction X refers to the direction of the cutter head body 10 along the rotation axis. The cross-section of the clearance recess 15 refers to the section perpendicular to the thickness direction X.

[0055] Along the thickness direction X from the blade mounting portion 13 to the cutter head mounting portion 141, the cross-sectional area of ​​the clearance recess 15 gradually decreases. The clearance recess 15 has a cone-shaped or similar gradient-contracting structure. The clearance recess 15 has a larger and wider opening at the end (outer side) near the blade mounting portion 13, and becomes narrower as it gets closer to the cutter head mounting portion 141.

[0056] This design allows air to flow more smoothly through the relief recess 15 area, helping to improve dynamic balance performance. Furthermore, the outer-wide, inner-narrow structure facilitates the discharge of grass clippings, preventing blockages and accumulation. During machining of the relief recess 15, demolding is easier, improving processability.

[0057] In some embodiments, the sidewall 151 of the clearance recess 15 extends obliquely toward the blade mounting portion 13 and is smoothly connected to the blade mounting portion 13. Simultaneously, the cross-sectional area of ​​the clearance recess 15 gradually decreases along the thickness direction from the blade mounting portion 13 to the cutter head mounting portion 141. This reduces vibration and noise while ensuring sufficient clearance for the blade 20 and improving the overall stability of the cutting mechanism 100.

[0058] Please refer to some embodiments of this application. Figures 2 to 4 The recess 15 is recessed in the first end face 11 of the cutter head body, and the bottom wall of the recess 15 protrudes from the second end face 12 of the cutter head body 10 opposite to the first end face 11.

[0059] The clearance recess 15 is recessed from the first end face 11 toward the second end face 12. The bottom wall of the clearance recess 15 extends to the second end face 12 (the original reference end face) and exceeds the reference surface of the second end face 12, that is, a height difference is formed between the bottom wall of the clearance recess 15 and the second end face 12. This design can increase the clearance space, which can not only better avoid the blade 20, but also increase the air intake efficiency and improve the operating efficiency.

[0060] Please refer to some embodiments of this application. Figure 4 The cutter head body 10 has an annular flange 16 around its periphery, which protrudes from the second end face 12. The annular flange 16 extends continuously along the periphery of the cutter head body 10 to form a closed ring structure, which can reduce the formation of turbulence when the airflow passes through, and at the same time, the ring structure can avoid aerodynamic noise when the airflow flows through the periphery.

[0061] The outer surface of the annular flange 16 can be designed as a smooth arc surface to reduce airflow resistance. The flange sidewall transitions smoothly with the periphery of the cutter head body 10. During the high-speed rotation of the blade 20, the annular flange 16 guides the airflow to diffuse evenly along its surface, reducing airflow turbulence and eddy current generation, thereby reducing noise during equipment operation.

[0062] Meanwhile, the annular flange 16 also enhances the structural strength of the cutter head body 10, improves its resistance to deformation, and extends its service life. Furthermore, the annular flange 16 prevents weeds from tangling around the edge of the cutter head body 10, thus improving mowing efficiency.

[0063] Please refer to some embodiments of this application. Figures 4 to 5 The protrusion height of the annular flange 16 is greater than the protrusion height of the bottom wall of the relief recess 15.

[0064] Because the bottom wall of the relief recess 15 protrudes beyond the second end face 12 of the cutter head body 10, the second end face 12 of the cutter head body is uneven. By providing an annular flange 16 around the periphery of the cutter head body 10, and making the protrusion height of the annular flange 16 greater than that of the bottom wall of the relief recess 15, the uneven second end face 12 can be surrounded within the annular flange 16. With this design, when the cutter head 101 rotates, airflow is prevented from flowing along the uneven second end face 12, and the airflow is directed to rotate along the outer wall of the annular flange 16, reducing noise during the rotation of the cutter head 101.

[0065] Please refer to some embodiments of this application. Figure 5The upper surface of the annular flange 16 is flat.

[0066] The upper surface of the annular flange 16 (the end opposite to the second end face 12) is horizontal and planar. The planar structure is symmetrical and regular, which can ensure dynamic balance stability. When the cutting mechanism 100 rotates at high speed, it reduces airflow disturbance and reduces vibration and noise caused by uneven shape.

[0067] In some embodiments, the protrusion height of the annular flange 16 is greater than the protrusion height of the bottom wall of the recess 15, and the upper surface of the annular flange 16 is flat. This ensures effective cutting while also improving operational stability and reducing noise levels.

[0068] In some embodiments of this application, a recessed portion 14 is provided in the middle region of the first end face 11, and a cutter head mounting portion 141 is provided in the recessed portion 14. Along the thickness direction of the cutter head body 10, the distance between the blade mounting portion 13 and the cutter head mounting portion 141 is 5mm~10mm.

[0069] A recessed portion 14 is provided in the middle area of ​​the first end face 11 of the cutter head body 10. The recessed portion 14 forms a groove structure, which can increase the space between the bottom of the cutter head body 10 and the ground, so that even when the cutter head body 10 is lowered to the lowest working height, sufficient air intake can be guaranteed, the cutter head body 10 maintains good airflow movement, and ensures smooth discharge of grass clippings.

[0070] A cutter head mounting part 141 is provided in the recessed part 14. The cutter head body 10 can be connected to a drive device (not shown) through the cutter head mounting part 141 to drive the entire cutting mechanism 100 to rotate.

[0071] The synergistic effect of the recessed portion 14 and the avoidance recessed portion 15 allows airflow to enter the recessed portion 14 through the avoidance recessed portion 15. This solves the air intake problem at low working heights, ensures wind speed, and avoids noise problems caused by the collision between the blade 20 and the cutter head body 10, thereby improving the operational stability and working efficiency of the cutting mechanism 100.

[0072] The distance between the blade mounting part 13 and the cutter head mounting part 141 is also the depth of the recess 14. Setting the distance to 5mm to 10mm ensures that the recess 14 has an appropriate depth, which can ensure that when the cutter head body 10 is at its lowest working height, there is a sufficient gap between the recess 14 and the ground, effectively compensating for insufficient air intake and ensuring the wind speed during the cutting process.

[0073] The spacing can be 6mm, 7mm, 8mm, or 9mm, etc. This achieves the function of air intake compensation without excessively weakening the structural strength of the cutter head body 10, thus ensuring the service life and safety of the cutter head body 10.

[0074] Please refer to some embodiments of this application. Figure 1 and Figure 3 The sidewall of the recess 14 is inclined and located between the blade mounting part 13 and the cutter head mounting part 141.

[0075] The inclined sidewall of the recess 14 forms a continuous transition guide surface with the blade mounting portion 13 and the cutter head mounting portion 141. The sidewall of the recess 14 can be set as an inclined plane or an arc-shaped curved surface transition. The inclined sidewall can smoothly guide the airflow from the peripheral area of ​​the blade mounting portion 13 to the central area of ​​the recess 14, which can reduce airflow resistance, prevent the formation of vortices at the inlet of the recess 14, reduce local pressure fluctuations, and improve airflow efficiency, ensuring the wind speed during cutting.

[0076] Please refer to some embodiments of this application. Figures 1 to 3 Along the thickness direction from the blade mounting portion 13 to the cutter head mounting portion 141, the cross-sectional area of ​​the recessed portion 14 gradually decreases.

[0077] The change in cross-sectional area of ​​the recess 14 is achieved by narrowing the sidewalls. The gradual reduction in cross-sectional area causes the airflow velocity to gradually increase when passing through the recess 14, forming a funnel effect and accelerating the airflow to compensate for the air intake volume of the cutter head body 10 at its lowest height, thereby further improving the cutting efficiency.

[0078] In some embodiments, the sidewalls of the recess 14 are inclined and located between the blade mounting portion 13 and the cutter head mounting portion 141. Simultaneously, the cross-sectional area of ​​the recess 14 gradually decreases along the thickness direction from the blade mounting portion 13 to the cutter head mounting portion 141. The inclination of the sidewalls of the recess 14 and the change in cross-sectional area work together to ensure a linear transition in the airflow channel, reducing the surge in wind resistance caused by abrupt structural changes. Therefore, while maintaining wind speed, it also improves the flow performance of the airflow and enhances the cutting effect.

[0079] Please refer to some embodiments of this application. Figures 1 to 3 The first end face 11 of the cutter head body 10 is also provided with at least one limiting structure 17. The limiting structure 17 is provided with at least one limiting part 171, which is used to limit the rotation angle of the blade 20.

[0080] The limiting structure 17 is a solid structure protruding from the first end face 11 of the cutter head body 10, which can form a mechanical block. The limiting structure 17 can be connected to the first end face 11 separately, or it can be integrally formed with the cutter head body 10, or it can be stamped on the cutter head body 10.

[0081] The limiting structure 17 limits the rotation angle of the blade 20 by setting a limiting part 171, which can be a boss, a stop, or a stepped surface, etc.

[0082] When the blade 20 rotates relative to the cutter head body 10, the limiting part 171 contacts a specific part of the blade 20, limiting the rotation angle of the blade 20. That is, during the start-stop phase of the blade 20 or when it collides with the outside, the limiting part 171 can prevent the blade 20 from continuing to rotate through physical contact, thus preventing blade breakage.

[0083] The limiting of the rotation angle of the blade 20 ensures that the rotation process of the blade 20 is always within a controllable space, ensuring that the dynamic gap between the blade 20 and the cutter head body 10, and between the blades 20, remains stable, thereby ensuring the smoothness and reliability of the equipment operation during the cutting operation.

[0084] Please refer to some embodiments of this application. Figure 2 The blade mounting part 13 is provided with a connecting hole 131 for connecting with the blade 20; the distance between the limiting structure 17 and the periphery of the cutter head body 10 is greater than the distance between the connecting hole 131 and the periphery of the cutter head body 10 (i.e., the limiting structure 17 is located at...). Figure 2 (Inside the dotted circle).

[0085] It should be noted that the distance between the limiting structure 17 and the periphery of the cutter head body 10 refers to the shortest distance from the limiting structure 17 to the periphery of the cutter head body 10 along the radial direction of the cutter head body 10; the distance between the connecting hole 131 and the periphery of the cutter head body 10 refers to the shortest distance from the center of the connecting hole 131 to the periphery of the cutter head body 10 along the radial direction of the cutter head body 10.

[0086] The connecting hole 131 and the blade 20 are fixed by fasteners (such as bolts or connecting shafts). The position of the connecting hole 131 determines the rotation trajectory of the blade 20 after installation. After the blade 20 is installed through the connecting hole 131, the blade 20 forms an arc-shaped path centered on the connecting hole 131 during rotation.

[0087] The distance between the limiting structure 17 and the periphery of the cutter body 10 is set to be greater than the distance between the connecting hole 131 and the periphery. The root of the blade 20 first contacts the limiting structure 17, and then the rotation angle is restricted, which avoids the blade edge of the blade 20 from rigidly colliding with the limiting structure 17, thereby protecting the blade edge of the blade 20 and improving its service life.

[0088] Please refer to some embodiments of this application. Figures 2 to 3 The limiting structure 17 is provided with at least one limiting part 171, which can be used to limit the rotation angle of the blade 20. The distance between the limiting part 171 and the periphery of the cutter head body 10 is greater than the distance between the connecting hole 131 and the periphery of the cutter head body 10.

[0089] It should be noted that the limiting part 171 refers to the part used to abut against the blade 20; the distance between the limiting part 171 and the periphery of the cutter head body 10 refers to the shortest distance from the limiting part 171 to the periphery of the cutter head body 10 along the radial direction of the cutter head body 10.

[0090] Because the distance between the limiting part 171 and the periphery of the cutter head body 10 is greater than the distance between the connecting hole 131 and the periphery of the cutter head body 10, when the blade 20 rotates excessively due to inertia or collision, the root of the blade 20 will first contact the limiting part 171, thereby limiting its rotation angle and preventing the cutting edge of the blade 20 from rigidly colliding with the limiting part 171, thus protecting the cutting edge of the blade 20 and improving its service life. At this time, it is only necessary to ensure that the distance between the limiting part 171 of the limiting structure 17 and the periphery of the cutter head body 10 is greater than the distance between the connecting hole 131 and the periphery of the cutter head body 10; the position of other structures of the limiting structure 17 is not restricted.

[0091] like Figure 2 Along the rotation direction of the cutter head 101, the limiting part 171 makes contact with the root of the blade 20. When the blade 20 rotates to the maximum angle due to inertia, the limiting part 171 prevents the blade 20 from continuing to rotate.

[0092] The distance between the limiting part 171 and the periphery of the cutter head body 10 is set to ensure that the cutting edge of the blade 20 is not interfered with by the limiting part 171 during normal cutting operations, thus maintaining cutting efficiency.

[0093] By controlling the distance between the limiting structure 17 (limiting part 171) and the periphery of the cutter head body 10, it is ensured that the rotation angle of the blade 20 is limited by abutting the root of the blade 20. At the same time, in the other direction, the blade 20 can cut normally at the maximum deflection angle without being affected by the limiting structure 17. This improves the coordination between the blade 20 and the limiting structure 17 during the cutting operation and increases the service life of the blade 20.

[0094] Please refer to some embodiments of this application. Figure 3 The limiting structure 17 protrudes from the surface of the first end face 11 onto the blade mounting part 13.

[0095] When the surface of the limiting structure 17 protrudes, a stepped height difference is formed between the blade mounting part 13 and the surface of the limiting structure 17. The limiting structure 17 forms a blocking boss in the rotation direction of the blade 20. When the blade 20 rotates, its root makes surface contact with the surface of the limiting structure 17, so that the limiting structure 17 can effectively limit the rotation angle of the blade 20, prevent the blade 20 from rotating excessively, and eliminate the risk of blade breakage.

[0096] The design of the limiting structure 17 protruding from the blade mounting part 13 allows the limiting structure 17 to better contact the blade 20, thereby improving the limiting effect.

[0097] Please refer to some embodiments of this application. Figure 3 The limiting part 171 is a curved surface or a plane provided on the side wall of the limiting structure 17.

[0098] The curved surface can be designed as an arc-shaped surface matching the contact area of ​​the blade 20, while the flat surface can be designed as a vertical surface perpendicular to the rotation direction of the blade 20. When the limiting part 171 adopts a curved surface structure, the contact surface of the blade 20 contacts along the curved sidewall, and the contact stress is dispersed to the curved surface area, reducing local wear. When the limiting part 171 adopts a flat surface structure, the contact surface of the blade 20 collides perpendicularly with the flat surface, and the impact force is dispersed through the flat area. The limiting part 171 adopts either a curved surface or a flat surface design, and a suitable shape can be selected according to actual needs to adapt to different blade 20 structures.

[0099] In some embodiments, the surface of the limiting structure 17 facing away from the first end face 11 protrudes from the blade mounting portion 13, while the limiting portion 171 is a curved surface or a plane disposed on the side wall of the limiting structure 17. By optimizing the height of the limiting structure 17 and the shape of the limiting portion 171, the accuracy of the blade 20 rotation angle control and the structural durability are improved.

[0100] Please refer to some embodiments of this application. Figures 1 to 3 The first end face 11 of the cutter head body 10 is provided with a first blade mounting portion 13a and a second blade mounting portion 13b, and a limiting structure 17 is provided between the first blade mounting portion 13a and the second blade mounting portion 13b. The limiting structure 17 is provided with a first limiting portion 171a and a second limiting portion 171b. The first limiting portion 171a is used to limit the stroke of the blade 20 connected to the first blade mounting portion 13a in the first rotation direction (counterclockwise direction), and the second limiting portion 171b is used to limit the stroke of the blade 20 connected to the second blade mounting portion 13b in the second rotation direction (clockwise direction).

[0101] When the blade 20 connected to the first blade mounting part 13a swings in the first rotation direction, the blade contacts the first limiting part 171a, preventing the blade 20 from continuing to rotate in that direction. When the blade 20 connected to the second blade mounting part 13b swings in the second rotation direction, the blade 20 contacts the second limiting part 171b, thereby restricting the blade 20 from continuing to rotate. The rotation range of the blade 20 is limited within a reasonable range, preventing blade breakage.

[0102] The number of blade mounting portions 13 can be correspondingly set to the number of limiting structures 17. In some embodiments, such as Figure 2 and Figure 3Three blade mounting portions 13 are arranged at circumferential intervals along the blade head body 10. A limiting structure 17 is provided between each pair of adjacent blade mounting portions 13. Therefore, the rotation stroke of the three blades 20 can be limited by the two limiting portions 171 on each limiting structure 17, so as to ensure that the blades 20 do not break when starting, stopping or colliding.

[0103] By setting a single limiting structure 17 between the two blade mounting parts 13, the limiting structure 17 acts on both blades 20 simultaneously, reducing the number of parts and lowering production costs.

[0104] Figure 7 The cutting mechanism 100 provided in the second embodiment of this application is shown. The difference between it and the first embodiment lies in the arrangement of the limiting structure 17 of the cutter head body 10. In this embodiment, one blade mounting part 13 corresponds to two limiting structures 17, which respectively limit the blade 20 connected to the blade mounting part 13 in two rotational directions.

[0105] Please see Figure 7 Each blade mounting portion 13 has a corresponding first limiting structure 17a and a second limiting structure 17b, and the blade mounting portion 13 is located between the corresponding first limiting structure 17a and second limiting structure 17b; the first limiting structure 17a is used to limit the stroke of the blade 20 connected to the blade mounting portion 13 in the first rotation direction (counterclockwise direction); the second limiting structure 17b is used to limit the stroke of the blade 20 connected to the blade mounting portion 13 in the second rotation direction (clockwise direction).

[0106] When the blade 20 rotates in the first rotation direction, the blade 20 contacts the limiting part of the first limiting structure 17a, preventing the blade 20 from continuing to rotate; when the blade 20 rotates in the second rotation direction, the blade 20 contacts the limiting part of the second limiting structure 17b, preventing the blade 20 from continuing to rotate, so that the maximum swing angle of the blade 20 in the two rotation directions is limited to a preset range.

[0107] When the blade 20 is subjected to an external force and rotates, the first limiting structure 17a and the second limiting structure 17b can prevent the blade 20 from rotating excessively, preventing collisions or interference between the blades 20 and extending the service life of the blade 20. Furthermore, by adjusting the relative positions of the first limiting structure 17a and the second limiting structure 17b, the maximum swing angle of the blade 20 can be adjusted, effectively controlling the rotation range of the blade 20.

[0108] Please refer to some embodiments of this application. Figure 7 At least a portion of the first limiting structure 17a is located in the peripheral region of the first end face 11, and at least a portion of the second limiting structure 17b is located in the middle region of the first end face 11.

[0109] A portion of the first limiting structure 17a extends to the vicinity of the periphery of the cutter head body 10 (first end face 11), and a portion of the second limiting structure 17b extends to the middle region of the first end face 11. Furthermore, when the middle region of the first end face 11 is provided with a recess 14, it extends into the interior of the recess 14.

[0110] By arranging the two limiting structures 17 in different areas or in an alternating manner, bidirectional limiting coverage is achieved within the limited space of the cutter head body 10, avoiding the need to set too many structures in the peripheral area of ​​the cutter head body 10, which would affect the cutting range of the blade 20.

[0111] Furthermore, this design still ensures that the blade 20 remains within the predetermined angle range during rotation, thereby improving cutting accuracy and stability. In addition, by setting the first limiting structure 17a and the second limiting structure 17b at different radius regions of the cutter head body 10, the rotation range of the blade 20 can be adjusted more flexibly.

[0112] The number of blade mounting sections 13 and the number of limiting structures 17 can be set accordingly. Figure 7 In the embodiment described above, three blade mounting portions 13, three first limiting structures 17a, and three second limiting structures 17b are arranged at circumferential intervals along the blade body 10. This design can limit the rotation stroke of the blades in the three blade mounting portions 13 respectively.

[0113] Figure 8 The third embodiment of this application shows a cutting mechanism 100, which differs from the first embodiment in the arrangement of the blade mounting portion 13 of the cutter head body 10. Figure 8 In the embodiment shown, the cutter head body 10 is provided with a plurality of blade mounting portions 13, which are spaced apart along the height direction of the cutter head body 10 to form at least two cutting trajectories at different heights of the cutter head body 10.

[0114] Please see Figure 8 At least one blade mounting part 13 is provided in the peripheral area of ​​the first end face 11 of the cutter head body 10, and at least one blade mounting part 13 is also provided in the peripheral area of ​​the second end face 12. The projections of each blade mounting part 13 in the horizontal plane do not overlap.

[0115] The cutting mechanism 100 of this solution can form at least two cutting trajectories when working, and the cutting trajectories are distributed at different heights of the cutter head 101 to cut long grass multiple times, thereby cutting the long grass into finer pieces. It should be noted that the cutter head body 10 of this solution is provided with multiple blade mounting parts 13, and the blades 20 connected to each blade mounting part 13 can have the same or different structures.

[0116] Please see Figure 1 , Figure 2 as well as Figure 6 In some embodiments of this application, the cutting mechanism 100 further includes at least one blade 20, which is rotatably connected to the blade mounting portion 13 and extends beyond the periphery of the cutter head body 10.

[0117] The blade 20 is mounted on the blade mounting part 13 via a rotatable connection, forming a movable connection that allows relative rotation, thus forming the swivel blade 20. Specifically, the rotatable connection can be achieved through a shaft structure or a hinge structure. The blade 20 is independently mounted on the blade mounting part 13, facilitating disassembly, replacement, and maintenance.

[0118] After installation, the blade 20 extends beyond the outer periphery of the cutter head body 10, and at least part of its cutting edge is located outside the periphery of the cutter head body 10, ensuring that it can directly contact the lawn vegetation in the working state and achieve effective cutting.

[0119] Two blades 20 can be set, or three or more blades 20 can be set. Multiple blades 20 are distributed circumferentially and extend outward to form a rotating cutting array, which can complete multi-point cutting in one stroke and improve mowing efficiency.

[0120] Please refer to some embodiments of this application. Figure 1 , Figure 2 as well as Figure 6 The blade 20 includes a mounting section 21, which has a mounting surface 211 that mates with the blade mounting portion 13. The first end face 11 of the cutter head body 10 is also provided with at least one limiting structure 17. The limiting structure 17 is spaced apart from the periphery of the cutter head body 10. The limiting structure 17 is provided with at least one limiting portion 171. When the blade 20 rotates along the first rotation direction, the limiting portion 171 abuts against the mounting section 21 to limit the blade 20.

[0121] The blade 20 is connected to the blade mounting part 13 via the mounting surface 211 on the mounting section 21. The mounting surface 211 can be provided with through holes to achieve stable hinge or pin connection, ensuring that the blade 20 swings flexibly within the normal working range.

[0122] A limiting structure 17 is provided on the first end face 11 of the cutter head body 10. The limiting structure 17 is arranged in the inner area close to the cutter head body 10. The limiting structure 17 is provided with a limiting part 171. The limiting part 171 can be a boss, a stop or a stepped surface, etc., and its position corresponds to the maximum allowable rotation angle of the blade 20 in a certain rotation direction.

[0123] When the blade 20 rotates along the first rotation direction (such as the cutting direction), its mounting section 21 moves synchronously with the overall structure until it comes into contact with the limiting part 171 on the limiting structure 17. At this time, the rotation of the blade 20 is mechanically blocked and stops further rotation, thereby achieving precise limitation of the swing angle of the blade 20.

[0124] Since the blade 20 abuts against the limiting part 171 through the mounting section 21, rather than the non-cutting cutting edge abutting against the limiting part 171, damage to the blade 20 can be reduced and its service life extended.

[0125] Please refer to some embodiments of this application. Figure 7 The blade 20 includes a transition section 22 and a cutting section 23. The transition section 22 is connected to one end of the mounting section 21, and the cutting section 23 is connected to the end of the transition section 22 away from the mounting section 21. The cutting section 23 has a first side 231 and a second side 232 opposite to each other. The first side 231 is provided with a cutting edge 2311. Along the direction from the first side 231 to the second side 232, the cutting section 23 is arc-shaped and raised (raised part).

[0126] The mounting section 21 is located at the root of the blade 20. The transition section 22 is connected to one end of the mounting section 21, serving as the intermediate connection area between the mounting section 21 and the cutting section 23. The function of the transition section 22 is to smoothly transfer the load and provide a certain degree of flexibility, allowing the blade 20 to deform appropriately under stress to adapt to the cutting conditions. The cutting section 23 is located at the outermost end of the blade 20 and is used for cutting.

[0127] The cutting section 23 has two opposing sides. The first side 231 is provided with a sharp blade 2311 for cutting into and removing material. The second side 232 can be provided with a secondary blade for secondary cutting and breaking up, or it can be provided as a non-blade edge to provide structural support and guidance.

[0128] Along the direction from the first side 231 to the second side 232, the cutting section 23 is curved upwards, meaning that the cutting section 23 curves upwards from the blade 2311 to the other side. By setting the cutting section 23 to a curved upward structure, during operation, the lower first side 231, as the leading edge, contacts the air first. The airflow flows smoothly backwards along the curved surface of the cutting section 23, reducing the pressure difference between the front and rear of the blade 20, making the pressure distribution more uniform, and reducing aerodynamic noise caused by airflow impact and turbulence. At the same time, the optimized airflow can form an upward airflow channel below the cutter head body 10, which helps to smoothly discharge grass clippings and reduces the accumulation of grass clippings in the cutter head body 10.

[0129] This application provides a lawn mowing robot (not shown in the figure), including a drive mechanism and a cutting mechanism 100 as described above, with the blade body 10 connected to the output end of the drive mechanism.

[0130] The output end of the drive mechanism and the cutter head body 10 can be assembled through a rigid connection or a keyway fit. The drive mechanism generally includes a motor. When the cutter head body 10 of the cutting mechanism 100 is provided with a cutter head mounting part 141, the motor output shaft can be coaxially connected to the cutter head mounting part 141 through a coupling.

[0131] The rigid connection between the cutter head body 10 and the drive mechanism ensures the stability of power transmission, allowing the blade 20 to maintain a predetermined trajectory during cutting operations.

[0132] The cutting mechanism 100 can stay close to the ground and adapt to the terrain, ensuring that the lawn is trimmed flat and evenly. The lawn mowing robot can operate autonomously without human intervention to complete the automated lawn mowing process.

[0133] This application provides a lawnmower robot system (not shown), including a base station and a lawnmower robot as described above, wherein the base station is at least used to charge the lawnmower robot.

[0134] The base station is primarily used to provide automatic charging for the lawnmower robot and serves as its task start and end point, as well as its docking and return point. The lawnmower robot system achieves fully automated operation of lawn mowing. When the lawnmower robot completes its work or runs out of power, it can autonomously return to the base station to recharge, and then set off again to continue working once fully charged.

[0135] During operation, the lawnmower robot autonomously walks along a planned path or in a random pattern to perform lawn mowing. The cutting mechanism 100 can cut efficiently and has a good chip removal function with low noise. When the battery level is detected to be lower than the set threshold or the task is completed, the lawnmower robot automatically stops working, returns to the base station along the boundary line through the navigation system, and achieves precise docking with the base station with the help of infrared and guidance structures to complete the charging connection. The base station replenishes the robot's power. After charging is completed, it can automatically start the next round of work or enter standby mode, thus forming a fully closed-loop, automated intelligent lawnmower system.

[0136] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cutting mechanism, characterized in that, The tool includes a cutter head body, the cutter head body having at least one blade mounting portion configured to connect with a blade; the cutter head body has a first end face, and the blade mounting portion is located in the peripheral region of the first end face; The peripheral area of ​​the first end face is provided with at least one clearance recess, which is used to provide clearance space for the raised part of the blade when the blade rotates relative to the blade body.

2. The cutting mechanism as described in claim 1, characterized in that, The cutter head body is provided with multiple blade mounting portions, which are spaced apart along the height direction of the cutter head body to form at least two cutting trajectories at different heights of the cutter head body.

3. The cutting mechanism as described in claim 2, characterized in that, The cutter head body also has a second end face opposite to the first end face, and the plurality of blade mounting portions are located in the peripheral area of ​​the first end face and the peripheral area of ​​the second end face, and the projections of the plurality of blade mounting portions in the horizontal plane do not overlap.

4. The cutting mechanism as described in claim 1, characterized in that, The blade mounting portion protrudes into the clearance recess; and / or, the blade mounting portion is located on one side of the clearance recess, the side of the clearance recess near the blade mounting portion is inclined and smoothly connected to the blade mounting portion.

5. The cutting mechanism as described in claim 1, characterized in that, The clearance recess is provided on the first end face of the cutter head body, and the bottom wall of the clearance recess protrudes from the second end face of the cutter head body opposite to the first end face.

6. The cutting mechanism as described in claim 5, characterized in that, The cutter head body has an annular flange around its periphery, and the annular flange protrudes from the second end face.

7. The cutting mechanism as described in claim 6, characterized in that, The protrusion height of the annular flange is greater than the protrusion height of the bottom wall of the avoidance recess; and / or, the upper surface of the annular flange is a plane.

8. The cutting mechanism as described in claim 1, characterized in that, The middle region of the first end face is provided with a recessed portion, and a cutter head mounting portion is provided in the recessed portion. Along the thickness direction of the cutter head body, the distance between the blade mounting portion and the cutter head mounting portion is 5mm~10mm.

9. The cutting mechanism as described in claim 8, characterized in that, The sidewall of the recess is inclined and located between the blade mounting part and the cutter head mounting part; And / or, along the thickness direction from the blade mounting portion to the cutter head mounting portion, the cross-sectional area of ​​the recess gradually decreases.

10. The cutting mechanism as described in claim 1, characterized in that, The first end face of the cutter head body is also provided with at least one limiting structure, the limiting structure having at least one limiting part, the limiting part being used to limit the rotation angle of the blade.

11. The cutting mechanism as described in claim 10, characterized in that, The blade mounting part is provided with a connecting hole for connecting with the blade; the distance between the limiting structure and the periphery of the cutter head body is greater than the distance between the connecting hole and the periphery of the cutter head body; Alternatively, the distance between the limiting part and the periphery of the cutter head body is greater than the distance between the connecting hole and the periphery of the cutter head body.

12. The cutting mechanism as described in claim 10, characterized in that, The surface of the limiting structure opposite to the first end face protrudes from the blade mounting portion; and / or, the limiting portion is a curved surface or a plane disposed on the side wall of the limiting structure.

13. The cutting mechanism as described in any one of claims 10 to 12, characterized in that, The first end face of the cutter head body is provided with a first blade mounting part and a second blade mounting part, and the limiting structure is located between the first blade mounting part and the second blade mounting part; The limiting structure includes a first limiting part and a second limiting part. The first limiting part is used to limit the travel of the blade connected to the first blade mounting part in the first rotation direction, and the second limiting part is used to limit the travel of the blade connected to the second blade mounting part in the second rotation direction.

14. The cutting mechanism as described in any one of claims 10 to 12, characterized in that, The first end face is provided with a first limiting structure and a second limiting structure, and the blade mounting part is located between the first limiting structure and the second limiting structure; The first limiting structure is used to limit the travel of the blade connected to the blade mounting part in the first rotation direction; the second limiting structure is used to limit the travel of the blade connected to the blade mounting part in the second rotation direction.

15. The cutting mechanism as described in claim 14, characterized in that, At least a portion of the first limiting structure is located in the peripheral region of the first end face, and at least a portion of the second limiting structure is located in the middle region of the first end face.

16. The cutting mechanism as described in any one of claims 1 to 9, characterized in that, It also includes at least one blade, which is rotatably connected to the blade mounting portion and extends beyond the periphery of the cutter head body.

17. The cutting mechanism as described in claim 16, characterized in that, The blade includes a mounting section having a mounting surface that mates with the blade mounting portion; The first end face of the cutter head body is also provided with at least one limiting structure. The limiting structure is spaced apart from the periphery of the cutter head body. The limiting structure is provided with at least one limiting part. When the blade rotates along the first rotation direction, the limiting part abuts against the mounting section to limit the blade.

18. The cutting mechanism as described in claim 17, characterized in that, The blade includes a transition section and a cutting section; the transition section is connected to one end of the mounting section, and the cutting section is connected to the end of the transition section away from the mounting section. The cutting section has a first side and a second side opposite to each other. The first side is provided with a cutting edge, and the cutting section is curved upwards along the direction from the first side to the second side.

19. A lawnmower robot, characterized in that, It includes a drive mechanism and a cutting mechanism as described in any one of claims 1 to 18, wherein the cutter head body is connected to the output end of the drive mechanism.

20. A lawnmowing robot system, characterized in that, The system includes a base station and a lawnmower robot as described in claim 19, wherein the base station is at least used to charge the lawnmower robot.

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