Cutting mechanism and cutting equipment

Abstract

The invention relates to the field of mowing robots, and provides a cutting mechanism and cutting equipment, and the cutting mechanism comprises a protection assembly, a cutting assembly and a driving assembly. The protection assembly is provided with at least one leading-in groove. The leading-in groove extends from the peripheral edge of the protection assembly to the side where the center of the protection assembly is located. The cutting assembly is arranged in the protection range of the protection assembly, and the driving assembly is used for driving the protection assembly to rotate, so that grass located on the outer side of the machine body continuously enters the guide-in groove. The driving assembly is further used for driving the cutting assembly to rotate, so that the grass entering the guide-in groove is rotationally cut by the cutting assembly, the grass located on the outer side of the machine body is subjected to edge trimming, then a mowing blind area is avoided, and the mowing effect is improved.

Description

Technical Field

[0001] The present application relates to the field of robotics technology, and in particular to a cutting mechanism and cutting equipment. Background Art

[0002] To maintain a safe distance, typical robotic lawn mowers often leave a certain distance between the mowing components at the bottom of the machine and the outside of the machine. This often leaves grass near walls, fences, and other areas unreachable, leaving a blind spot. To clear this blind spot, manual labor using separate tools is often required. Therefore, a cutting device that can clean grass near walls, fences, and other areas, avoiding this blind spot and improving mowing efficiency, has become a technical challenge. Summary of the Invention

[0003] The present application provides a cutting mechanism and cutting equipment that reduce mowing blind areas and improve mowing efficiency.

[0004] In a first aspect, the present application provides a cutting mechanism comprising: A protection component, the protection component having at least one introduction groove, the introduction groove extending from the outer periphery of the protection component toward the center of the protection component; a cutting assembly, the cutting assembly being disposed within a protection range of the protection assembly, the introduction groove being at least partially located within the cutting range of the cutting assembly; A driving assembly, wherein the driving assembly is connected to the protection assembly and is used to drive the protection assembly to rotate; the driving assembly is also connected to the cutting assembly and is also used to drive the cutting assembly to rotate.

[0005] The present application designs a cutting mechanism including a protection component, a cutting component and a driving component. The protection component has at least one introduction slot. The introduction slot extends from the outer periphery of the protection component toward the side where the center of the protection component is located, so that the grass can follow the introduction slot into a position close to the central area of the protection component. The cutting component is arranged in the protection range of the protection component, and the driving component is used to drive the protection component to rotate so that the grass located on the outside of the fuselage body continuously follows the introduction slot into a position close to the central area of the protection component. The driving component is also used to drive the cutting component to rotate so that the grass entering the introduction slot is cut by the cutting component, so as to trim the grass located on the outside of the fuselage body, thereby avoiding leaving a blind spot for mowing and improving the mowing effect.

[0006] In a second aspect, the present application provides a cutting mechanism, comprising: The protection assembly includes a central disk and a plurality of extension units surrounding the outer periphery of the central disk, wherein the introduction groove is formed between two adjacent extension units; the extension direction of each extension unit intersects the radial direction of the central disk; a cutting assembly, the cutting assembly being disposed within the protection range of the protection assembly, the introduction groove being at least partially located within the cutting range of the cutting assembly; and A driving assembly is connected to the cutting assembly and is used to drive the cutting assembly to rotate.

[0007] The present application designs a cutting mechanism including a protection component, a cutting component and a driving component. The protection component includes a center disk and a plurality of extension units surrounding the outer peripheral side of the center disk, and the guide slot is formed between two adjacent extension units, so that the grass can enter the cutting range close to the cutting component along the guide slot. The extension direction of each extension unit intersects with the radial direction of the center disk; the cutting component is arranged in the protection range of the protection component, and the guide slot is at least partially located in the cutting range of the cutting component; the driving component is connected to the cutting component, and the driving component is used to drive the cutting component to rotate, so that the grass entering the guide slot is cut by the cutting component, so as to achieve the edge trimming of the grass located outside the main body of the fuselage, thereby avoiding leaving a mowing blind spot and improving the mowing effect.

[0008] In a third aspect, the present application provides a cutting mechanism, which is applied to a self-moving device and includes: The protection component has at least one introduction groove, the introduction groove extending from the outer periphery of the protection component toward the center of the protection component; a cutting assembly, the cutting assembly being disposed within a protection range of the protection assembly, and the introduction groove being at least partially located within the cutting range of the cutting assembly; A portion of the introduction slot is located within the cutting range of the cutting assembly; at least a portion of the introduction slot on the protection assembly is located outside the orthographic projection area of the self-moving device; A connecting assembly is used to connect the cutting mechanism and the self-moving device. The connecting assembly is used to drive the cutting assembly to rotate to avoid obstacles when the self-moving device encounters obstacles.

[0009] The cutting mechanism provided in the present application includes a protection component, a cutting component, and a connection component. The protection component has at least one introduction slot. The introduction slot extends from the outer periphery of the protection component toward the side where the center of the protection component is located. The cutting component is arranged within the protection range of the protection component. The introduction slot is at least partially located within the cutting range of the cutting component. A portion of the introduction slot is located within the cutting range of the cutting component. At least a portion of the introduction slot on the protection component is located outside the positive projection area of the self-moving device. The connection component is used to connect the cutting mechanism and the self-moving device. The connection component is used to drive the cutting component to rotate to avoid obstacles when the self-moving device encounters obstacles during its movement. Not only can the cutting mechanism of the self-moving device mow and edge the grass, but it can also automatically overcome obstacles during the process of mowing and edging the grass by the cutting mechanism, avoiding hard collisions between the cutting mechanism and obstacles, thereby causing physical damage to the edging and cutting mechanism or the self-moving device to be unable to move forward, thereby improving the obstacle-crossing capability and intelligence of the self-moving device.

[0010] In a fourth aspect, the present application provides a cutting mechanism, comprising: A protective assembly, the protective assembly comprising a first central disk and a plurality of first extension units surrounding an outer periphery of the first central disk, wherein at least a portion of an introduction slot is formed between two adjacent first extension units; the introduction slot extends from an outer periphery of the protective assembly toward a side where a center of the protective assembly is located; a cutting assembly, the cutting assembly being disposed within a protection range of the protection assembly, and at least a portion of the introduction groove being located within the cutting range of the cutting assembly; a first driving assembly, the first driving assembly being connected to the cutting assembly and configured to drive the cutting assembly to rotate; A second driving assembly is connected to the protection assembly, and the second driving assembly is used to drive the protection assembly to rotate.

[0011] The present application designs a cutting mechanism including a protection component, a cutting component, a first drive component and a second drive component. The protection component includes a first center disk and a plurality of first extension units surrounding the outer periphery of the first center disk, and at least a portion of an inlet groove is formed between two adjacent first extension units; the inlet groove extends from the outer periphery of the protection component toward the side where the center of the protection component is located, so that the grass on the peripheral side can be rolled into the inlet groove during the rotation of the protection component; the cutting component is arranged within the protection range of the protection component to avoid exposure of the cutting component, and at least a portion of the inlet groove is located within the cutting range of the cutting component, so that the grass entering the inlet groove can enter the cutting range of the cutting component and be cut by the cutting component; the second drive component is connected to the protection component, and the second drive component is used to drive the protection component to rotate. During the rotation of the protection component, the grass located on the outside of the fuselage body is continuously moved along the inlet groove into the cutting range close to the cutting component. The first drive assembly is connected to the cutting assembly, and the first drive assembly is used to drive the cutting assembly to rotate. When the grass continuously follows the guide groove into the cutting range close to the cutting assembly, and is cut by the cutting assembly, the grass located outside the main body of the machine can be trimmed, thereby avoiding leaving blind spots for mowing and improving the mowing effect.

[0012] In a fifth aspect, the present application provides a cutting mechanism, comprising: A protective assembly, the protective assembly comprising a first central disk and a plurality of first extension units surrounding an outer periphery of the first central disk, wherein at least a portion of an introduction slot is formed between two adjacent first extension units, the introduction slot extending from an outer periphery of the protective assembly toward a side where a center of the protective assembly is located; a cutting assembly, the cutting assembly being disposed within a protection range of the protection assembly, and a portion of the introduction groove being located within the cutting range of the cutting assembly; and A driving assembly is connected to the protection assembly and the cutting assembly, and is used to drive the protection assembly and the cutting assembly to rotate.

[0013] The present invention is a cutting mechanism comprising a protective assembly, a cutting assembly, and a driving assembly. The protective assembly comprises a first central disk and a plurality of first extension units surrounding the outer periphery of the first central disk, with at least a portion of a guide slot formed between two adjacent first extension units. The guide slot extends from the outer periphery of the protective assembly toward the center of the protective assembly so that grass on the periphery is drawn into the guide slot during rotation of the protective assembly. The cutting assembly is disposed within a protective range of the protective assembly to prevent the cutting assembly from being exposed. At least a portion of the guide slot is located within the cutting range of the cutting assembly so that grass entering the guide slot can enter the cutting range of the cutting assembly and be cut by the cutting assembly. The driving assembly is connected to the protective assembly and is used to drive the protective assembly to rotate. During rotation, the protective assembly causes grass located outside the main body to continuously follow the guide slot into the cutting range close to the cutting assembly. The driving assembly is also connected to the cutting assembly and is used to drive the cutting assembly to rotate. As the grass continuously follows the guide slot into the cutting range close to the cutting assembly and is cut by the cutting assembly, the grass located outside the main body is trimmed, thereby avoiding blind spots and improving mowing performance.

[0014] In a sixth aspect, the present application provides a cutting device, which includes a fuselage main body and at least one cutting mechanism described in the first aspect, the second aspect, the third aspect, the fourth aspect or the fifth aspect, and the cutting mechanism is arranged on the fuselage main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a cutting device provided in an embodiment of the present application; Figure 2 This is a top schematic diagram of a cutting device provided in an embodiment of the present application; Figure 3 This is a bottom schematic diagram of a cutting device provided in an embodiment of the present application; Figure 4 This is a schematic diagram of the back end of a cutting device provided in an embodiment of the present application; Figure 5 is a side view schematic diagram of a cutting device provided in an embodiment of the present application; Figure 6 yes Figure 5 Schematic diagram of the cross section along the AA direction; Figure 7 This is a three-dimensional schematic diagram of a cutting mechanism provided in an embodiment of the present application. Figure 1 ; Figure 8This is a three-dimensional decomposition diagram of a cutting mechanism provided in an embodiment of the present application. Figure 1 ; Figure 9 is a cross-sectional schematic diagram of a cutting mechanism provided in an embodiment of the present application; Figure 10 1 is a top view schematic diagram of a protection component and a cutting component provided in an embodiment of the present application; Figure 11 This is a schematic diagram of the decomposition of a protection component and a cutting component provided in an embodiment of the present application. Figure 1 ; Figure 12 1 is a cross-sectional schematic diagram of a protection component and a cutting component provided in an embodiment of the present application; Figure 13 This is a three-dimensional decomposition diagram of a cutting mechanism provided in an embodiment of the present application. Figure 2 ; Figure 14 This is an exploded schematic diagram of a protection component and a cutting component provided by an embodiment of the present application, with the protection component and the cutting component rotating in opposite directions; Figure 15 This is an exploded schematic diagram of a protection component and a cutting component provided by an embodiment of the present application, with the same rotation direction; Figure 16 is a schematic top view of a protection assembly provided in an embodiment of the present application; Figure 17 yes Figure 16 A schematic cross-sectional view along the BB direction is provided; Figure 18 This is a perspective diagram of the exploded structure of a cutting device provided in an embodiment of the present application; Figure 19 This is a top view of the exploded structure of a cutting device provided in an embodiment of the present application; Figure 20 This is a three-dimensional schematic diagram of a cutting mechanism and a connecting assembly provided in an embodiment of the present application; Figure 21 yes Figure 20 A three-dimensional diagram of the exploded structure of a cutting mechanism and connecting components is provided; Figure 22 yes Figure 20 A cross-section of a cutting mechanism and connecting components provided Figure 1 ; Figure 23 yes Figure 20 A three-dimensional decomposition structure of a connection component is provided Figure 1 ; Figure 24 yes Figure 20 A three-dimensional decomposition structure of a connection component is provided Figure 2 ; Figure 25 yes Figure 20 A three-dimensional diagram of the internal structure of a connection component is provided; Figure 26 yes Figure 25 An exploded structural perspective view of a connection assembly is provided; Figure 27 This is a schematic diagram of the decomposition of a protection component and a cutting component provided in an embodiment of the present application. Figure 2 ; Figure 28 This is a three-dimensional decomposition diagram of a cutting mechanism provided in an embodiment of the present application. Figure 3 ; Figure 29 yes Figure 20 A cross-section of a cutting mechanism and connecting components provided Figure 2 ; Figure 30 This is a three-dimensional schematic diagram of a cutting mechanism provided in Example 5 of the present application; Figure 31 This is an exploded perspective view of a cutting mechanism provided in Example 5 of the present application; Figure 32 This is a three-dimensional schematic diagram of a protection component, a cutting component, and a driving component provided in Example 5 of the present application; Figure 33 This is a top view schematic diagram of a protection assembly, a cutting assembly, and a driving assembly provided in Example 5 of the present application; Figure 34 This is a side view schematic diagram of a protection assembly, a cutting assembly, and a driving assembly provided in Example 5 of the present application; Figure 35 This is a bottom schematic diagram of a protection component, a cutting component, and a driving component provided in Example 5 of the present application.

[0017] Description of Figure Numbers: Cutting device 1000; fuselage body 100; cutting mechanism 200; connecting assembly 800; Connecting bracket 210; bracket body 211; first bracket arm 212; second bracket arm 213; Transmission assembly 220; first gear 221; second through hole 222; Drive gear 224; First transmission gear 225; Accommodation shell 230; first cylinder 231; second cylinder 232; first assembly ring 233; second assembly ring 234; First bearing 235; second bearing 236; Front wheel assembly 310; rear wheel assembly 320; mowing component 330; Protection assembly 400; Introductory slot 410; Open end 411; closed end 412; first sub-introduction groove 413; second sub-introduction groove 414; Center disk 420; first center disk 421; second center disk 422; first through hole 423; third through hole 424; gear ring 425; Extension unit 430; Connecting end 431; Extending end 432; First extension unit 433; second extension unit 434; Accommodation chamber 440; First cover 451; second cover 452; Cutting assembly 500; Blade 510; blade shaft 520; blade edge 530; Drive assembly 600; First driving assembly 610; first motor 611; Second driving assembly 620; second motor 621; second gear 622; Connecting bearing 710; first shaft ring 711; second shaft ring 712; Rotating shaft assembly 810; rotating shaft 811; rotating shaft connector 812; main body 813; hook portion 814; first torsion arm 815; first spiral arm 816; intermediate connecting arm 817; second spiral arm 818; second torsion arm 819; Elastic reset assembly 820 ; buffer seat 821 ; rotating shaft elastic member 822 ; first abutting portion 823 . DETAILED DESCRIPTION

[0018] The technical solution of this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described in this application are only some embodiments, not all embodiments. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0019] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it necessarily refer to mutually exclusive, independent, or alternative embodiments to other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0020] In the specification, claims, and accompanying drawings of this application, the terms "first," "second," and so on are used to distinguish between different objects, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a component or device comprising one or more components is not limited to the listed one or more components, but may optionally include one or more components not listed but inherent to the product in question, or one or more components required based on the described functionality. To ensure a safe distance, typical automatic lawn mowers often leave a certain distance between the mowing components at the bottom of the machine and the periphery. This often leaves grass near walls, fences, and other areas unreachable, leaving a blind spot. To clear this blind spot, manual labor is often required using separate tools. Therefore, a cutting device that can clean grass near walls, fences, and other areas, avoiding a blind spot and improving mowing efficiency has become a technical problem to be solved.

[0021] See also Figure 1 The present application provides a cutting device 1000. The cutting device 1000 is used for mowing garden lawns, including but not limited to an automatic mowing robot.

[0022] See also Figures 1-4 The cutting device 1000 includes a body 100 and at least one cutting mechanism 200 .

[0023] The main body 100 includes a front end and a rear end along the travel direction. The main body 100 also includes a first side and a second side along the width direction. The travel direction is the length direction. The width direction is Figure 1 The X direction in the longitudinal direction is Figure 1 The Y direction in the height direction is Figure 1 The Z direction in .

[0024] Optional, see Figures 1-4 The cutting device 1000 further includes a pair of front wheel assemblies 310 and a pair of rear wheel assemblies 320. The pair of front wheel assemblies 310 are symmetrically located on the first side of the main body 100 near the front end and on the second side of the main body 100 near the front end. The pair of rear wheel assemblies 320 are symmetrically located on the first side of the main body 100 near the rear end and on the second side of the main body 100 near the rear end. The pair of front wheel assemblies 310 and the pair of rear wheel assemblies 320 are used to propel the main body 100.

[0025] The cutting mechanism 200 is provided on the main body 100. The number of the cutting mechanism 200 is one or more.

[0026] Optionally, when there is only one cutting mechanism 200 , the cutting mechanism 200 may be located on the first side of the fuselage body 100 .

[0027] Optionally, when there is only one cutting mechanism 200 , the cutting mechanism 200 may be located on the second side of the fuselage body 100 .

[0028] Optionally, when there are two cutting mechanisms 200 , the two cutting mechanisms 200 are respectively located on the first side and the second side of the fuselage body 100 .

[0029] In the length direction, the cutting mechanism 200 is located between the front wheel assembly 310 and the rear wheel assembly 320 .

[0030] See also Figure 2 、 Figure 5 and Figure 6 The cutting mechanism 200 extends outside the main body 100 and is used for trimming edges. Specifically, the cutting range of the cutting mechanism 200 is at least partially located outside the height projection area of the main body 100. As the cutting device 1000 moves forward, the cutting path of the cutting mechanism 200 can pass through the area outside the perimeter of the main body 100, mowing and trimming the grass M1 outside the perimeter of the main body 100. This cleans the weeds at the junction of the lawn and the hard road surface and wall M2, avoiding mowing blind spots and improving mowing efficiency.

[0031] Optional, see Figure 3 The cutting device 1000 further includes at least one mowing unit 330 disposed at the bottom of the main body 100 for mowing the area where the main body 100 passes. The number of mowing units 330 may be one or more. For example, the number of mowing units 330 may be two. The two mowing units 330 are disposed along the width of the bottom of the main body 100.

[0032] The difference between the mowing component 330 and the aforementioned cutting mechanism 200 is that the mowing component 330 is used to mow grass at the bottom of the fuselage body 100, while the cutting mechanism 200 is used to extend out of the side of the fuselage body 100 to trim the edges.

[0033] Of course, in other embodiments, the cutting device 1000 does not include the mowing element 330 .

[0034] Of course, in other embodiments, the cutting device 1000 does not include the mowing component 330. The cutting mechanism 200 can be moved. For example, the cutting mechanism 200 can be located at the bottom of the main body 100 to mow the grass at the bottom of the main body 100; when trimming is required, the cutting mechanism 200 can be moved to the side of the main body 100 to perform trimming.

[0035] The structure of the cutting mechanism 200 provided in the first embodiment of the present application is illustrated below with reference to the accompanying drawings.

[0036] See also Figure 7-Figure 9 The cutting mechanism 200 includes a protection component 400, a cutting component 500 and a driving component 600.

[0037] See also Figure 10-12 The protection component 400 has at least one introduction slot 410. Specifically, the number of the introduction slots 410 is one or more. This embodiment takes the number of the introduction slots 410 as an example.

[0038] Optionally, at least a portion of the introduction slot 410 is located outside the orthographic projection area of the fuselage body 100 , so that grass outside the fuselage body 100 can enter the introduction slot 410 .

[0039] The introduction groove 410 extends from the outer periphery of the protection component 400 toward the center of the protection component 400 , so that grass located outside the fuselage body 100 can enter the cutting range close to the cutting component 500 along the introduction groove 410 .

[0040] For further optional information, see Figure 2 and Figure 10 The extension direction of each of the introduction grooves 410 is inclined compared to the travel direction, so that as the cutting device 1000 advances and the protection component 400 rotates, the grass on the outside is brought into a position close to the center of the protection component 400 along the introduction groove 410.

[0041] In a first optional embodiment, the number of the cutting mechanism 200 is one, and the plurality of the introduction grooves 410 are arranged in a clockwise direction around the center of the protection component 400 .

[0042] For example, when the cutting mechanism 200 is located on the left side of the main body 100 , the plurality of introduction slots 410 are arranged in a counterclockwise direction around the center of the protection component 400 .

[0043] As the cutting device 1000 moves forward and the protective component 400 rotates clockwise, the grass on the left side of the body 100 enters the guide groove 410 as the protective component 400 rotates. As the protective component 400 rotates, the grass is able to enter a deeper position in the guide groove 410 and will not go out from the notch of the guide groove 410. The grass is squeezed and bound in the guide groove 410, thereby preparing for the subsequent cutting component 500 to cut the grass.

[0044] For the second optional implementation, please refer to Figure 2 and Figure 10 The number of the cutting mechanism 200 is one, and the plurality of the introduction grooves 410 are arranged counterclockwise around the center of the protection component 400 .

[0045] For example, when the cutting mechanism 200 is located on the right side of the main body 100, the plurality of guide slots 410 are arranged counterclockwise around the center of the protection assembly 400. Furthermore, the rotation direction of the protection assembly 400 is also counterclockwise.

[0046] As the cutting device 1000 moves forward and the protective component 400 rotates counterclockwise, the grass on the right side of the body 100 enters the guide groove 410 as the protective component 400 rotates. As the protective component 400 rotates, the grass is able to enter a deeper position in the guide groove 410 and will not go out from the notch of the guide groove 410. The grass is squeezed and bound in the guide groove 410, thereby preparing for the subsequent cutting component 500 to cut the grass.

[0047] In a third optional embodiment, the number of cutting mechanisms 200 is two, wherein the multiple introduction grooves 410 of one cutting mechanism 200 are arranged in a clockwise direction around the center of the protective component 400, and the multiple introduction grooves 410 of the other cutting mechanism 200 are arranged in a counterclockwise direction around the center of the protective component 400.

[0048] For example, when the cutting mechanism 200 is located on the left side of the main body 100 , the plurality of introduction slots 410 are arranged in a counterclockwise direction around the center of the protection component 400 .

[0049] As the cutting device 1000 moves forward and the protective component 400 rotates clockwise, the grass on the left side of the body 100 enters the guide groove 410 as the protective component 400 rotates. As the protective component 400 rotates, the grass is able to enter a deeper position in the guide groove 410 and will not go out from the notch of the guide groove 410. The grass is squeezed and bound in the guide groove 410, thereby preparing for the subsequent cutting component 500 to cut the grass.

[0050] For example, when the cutting mechanism 200 is located on the right side of the main body 100, the plurality of guide slots 410 are arranged counterclockwise around the center of the protection assembly 400. Furthermore, the rotation direction of the protection assembly 400 is also counterclockwise.

[0051] As the cutting device 1000 moves forward and the protective component 400 rotates counterclockwise, the grass on the right side of the body 100 enters the guide groove 410 as the protective component 400 rotates. As the protective component 400 rotates, the grass is able to enter a deeper position in the guide groove 410 and will not go out from the notch of the guide groove 410. The grass is squeezed and bound in the guide groove 410, thereby preparing for the subsequent cutting component 500 to cut the grass.

[0052] See also Figure 10 The cutting assembly 500 is located within the protection range S1 of the protection assembly 400. The protection range S1 of the protection assembly 400 refers to the protection range S1 formed by the rotation of the protection assembly 400. That is, the cutting assembly 500 is located within the protection range S1 formed by the rotation of the protection assembly 400. Furthermore, the introduction groove 410 is at least partially located within the cutting range S2 of the cutting assembly 500. The cutting range S2 is the rotation range formed by the rotation of the cutting assembly 500.

[0053] In the height direction, the cutting assembly 500 can be located at the bottom of the protection assembly 400; or, see Figure 10-12 The cutting assembly 500 can also be sandwiched between the protection assembly 400. In the height direction, part or all of the introduction groove 410 is directly opposite to the cutting range S2 of the cutting assembly 500.

[0054] The protection component 400 in this embodiment can not only serve as a component to prevent the cutting component 500 from being directly exposed, but also can serve as a component to guide grass outside the cutting range S2 into the cutting range S2 of the cutting component 500 and bind and squeeze the grass, thereby improving the cutting efficiency and further improving the edging efficiency.

[0055] In an optional embodiment, taking the case where the protection range S1 and the cutting range S2 are both circular areas, the cutting radius of the cutting assembly 500 is smaller than the protection radius of the protection assembly 400 .

[0056] Of course, in other embodiments, the cutting area of the cutting assembly 500 near the outside of the fuselage body 100 is located within the protection range S1 of the protection assembly 400. The cutting area of the cutting assembly 500 near the inside of the fuselage body 100 may be located outside the protection range S1 of the protection assembly 400.

[0057] See also Figure 13The driving assembly 600 is connected to the protecting assembly 400. The driving assembly 600 is used to drive the protecting assembly 400 to rotate. During the rotation of the protecting assembly 400, the grass outside the main body 100 is continuously guided along the guide groove 410 into the cutting range S2 close to the cutting assembly 500.

[0058] See also Figure 9 The drive assembly 600 is also connected to the cutting assembly 500. The drive assembly 600 is also used to drive the cutting assembly 500 to rotate. In this way, as grass continues to flow along the guide slot 410 into the cutting range S2 close to the cutting assembly 500 and is cut by the cutting assembly 500, the grass outside the main body 100 is trimmed, thereby avoiding blind spots and improving mowing efficiency.

[0059] The present invention discloses a cutting mechanism 200 comprising a protective assembly 400, a cutting assembly 500, and a drive assembly 600. The protective assembly 400 has at least one inlet slot 410. The inlet slot 410 extends from the outer periphery of the protective assembly 400 toward the center of the protective assembly 400, allowing grass to flow along the inlet slot 410 into the cutting range S2 adjacent to the cutting assembly 500. The cutting assembly 500 is positioned within the protective range S1 of the protective assembly 400. The drive assembly 600 is configured to rotate the protective assembly 400, causing grass outside the main body 100 to continuously flow along the inlet slot 410 into the cutting range S2 adjacent to the cutting assembly 500. The drive assembly 600 is further configured to rotate the cutting assembly 500, causing the grass entering the inlet slot 410 to be cut by the cutting assembly 500. This achieves edge trimming of the grass outside the main body 100, thereby avoiding blind spots and improving mowing efficiency.

[0060] The driving assembly 600 is described below with reference to the accompanying drawings.

[0061] Optional, see Figure 9 The drive assembly 600 includes a first drive assembly 610. The first drive assembly 610 is connected to the cutting assembly 500. The first drive assembly 610 is used to drive the cutting assembly 500 to rotate. In this embodiment, the cutting assembly 500 rotates under the drive of the first drive assembly 610, thereby cutting the grass entering the introduction groove 410.

[0062] For the first optional implementation, please refer to Figure 9 The first driving component 610 is connected to the protection component 400. The first driving component 610 is used to drive the protection component 400 to rotate. The first driving component 610 will be described in detail later.

[0063] In this embodiment, the cutting component 500 and the protection component 400 can be driven by the same drive structure (the first drive component 610). Compared with setting up two drive structures to drive the cutting component 500 and the protection component 400 respectively, the number of drive structures and the space occupied by the drive structures can be reduced, thereby reducing the space occupied and weight of the entire cutting mechanism 200. The lightweight design is more conducive to the cutting mechanism 200 to perform edge mowing tasks.

[0064] For the second optional implementation, please refer to Figure 13 The drive assembly 600 further includes a second drive assembly 620. The second drive assembly 620 is connected to the protection assembly 400. The second drive assembly 620 is used to drive the protection assembly 400 to rotate. The first drive assembly 610 and the second drive assembly 620 will be described in detail later.

[0065] In this embodiment, the cutting component 500 and the protection component 400 are driven by different drive structures respectively. In this way, on the one hand, the cutting component 500 and the protection component 400 can operate independently, so that the cutting component 500 and the protection component 400 can flexibly design their respective rotation speeds and rotation directions. On the other hand, it also simplifies the complexity of each drive structure, facilitates the design of each part of the drive structure, and saves the cost of designing, mold opening, processing, and assembling the drive component 600.

[0066] The present application does not impose any specific limitation on the rotation speed of the protection assembly 400. The present application does not impose any specific limitation on the rotation speed of the cutting assembly 500.

[0067] The rotational speed of the protection assembly 400 is slower than that of the cutting assembly 500. In other words, the cutting assembly 500 rotates faster than the protection assembly 400. This allows the cutting assembly 500 to rotate at a higher relative speed relative to the protection assembly 400, allowing the grass trapped within the guide groove 410 of the protection assembly 400 to be cut by the cutting assembly 500 at a higher relative speed, thereby improving mowing efficiency.

[0068] Optionally, the rotation speed of the cutting assembly 500 is greater than or equal to 10 times the rotation speed of the protection assembly 400. When the cutting assembly 500 and the protection assembly 400 are driven by the same drive assembly, that is, in an embodiment in which a single motor + transmission assembly drives the cutting assembly 500 and the protection assembly 400 simultaneously, the reduction ratio of the transmission assembly is greater than or equal to 10. When the cutting assembly 500 and the protection assembly 400 are driven by two independent drive assemblies respectively, that is, in an embodiment in which dual motors drive the cutting assembly 500 and the protection assembly 400, the speed of the driving motor of the cutting assembly 500 is greater than or equal to 10 times the speed of the driving motor of the protection assembly 400; or, when the speeds of the dual motors are the same, the reduction ratio of the reduction gear of the protection assembly 400 is greater, and the reduction ratio of the reduction gear of the protection assembly 400 is greater than or equal to 10 times the reduction ratio of the reduction gear of the cutting assembly 500.

[0069] For example, the rotation speed of the cutting assembly 500 is 10 times, 15 times, 20 times, 25 times, 30 times, etc., the rotation speed of the protection assembly 400 .

[0070] Further optionally, the rotation speed of the protection component 400 is less than or equal to 200 revolutions per minute. For example, the rotation speed of the protection component 400 is 1 to 2 revolutions per second.

[0071] The present application designs the rotation speed of the protection component 400 to be much lower than the rotation speed of the cutting component 500, and the rotation speed of the protection component 400 is relatively slow and suitable. On the one hand, the rotation speed design of the protection component 400 is conducive to rolling in the grass; on the other hand, the rotation speed of the protection component 400 is relatively slow, reducing the risk of scratches when it comes into contact with the human body; on the other hand, the rotation speed of the protection component 400 is relatively slow, which also reduces the impact force when the protection component 400 comes into contact with the wall, thereby avoiding physical damage.

[0072] The present application does not impose any specific limitation on the rotation direction of the protection assembly 400. The present application does not impose any specific limitation on the rotation direction of the cutting assembly 500.

[0073] In an optional implementation, see Figure 14 The rotation direction of the protection assembly 400 is opposite to that of the cutting assembly 500. In other words, the grass in the introduction groove 410 rotates with the protection assembly 400 toward the cutting side of the cutting assembly 500. The grass in the introduction groove 410 is subjected to the rotational driving force of the protection assembly 400 on one side and the rotational cutting force of the cutting assembly 500 on the other side. The grass in the introduction groove 410 is clamped on both sides by the protection assembly 400 and the cutting assembly 500 and is quickly cut by the cutting assembly 500, thereby improving the cutting efficiency.

[0074] In another optional embodiment, please refer to Figure 15 The rotation direction of the protection assembly 400 is the same as that of the cutting assembly 500. Since the rotation speed of the cutting assembly 500 is greater than that of the protection assembly 400, the cutting assembly 500 can rotate at a higher relative speed relative to the protection assembly 400, so that the grass trapped in the guide groove 410 of the protection assembly 400 is cut by the cutting assembly 500 at a higher relative speed, thereby improving the efficiency of mowing.

[0075] Optional, see Figure 10 The rotation axis of the protection assembly 400 is the same as the rotation axis of the cutting assembly 500. Thus, the rotation axis of the protection assembly 400 and the rotation axis of the cutting assembly 500 can be coaxially connected in the height direction, so that the cutting area of the cutting assembly 500 corresponds to the area where the introduction slot 410 is located. This allows grass on the outer periphery of the fuselage body 100 to enter the cutting area of the cutting assembly 500 through the introduction slot 410 and be quickly cut by the cutting assembly 500.

[0076] The structure of the protection component 400 is described below with reference to the accompanying drawings.

[0077] Optional, see Figure 10 The introduction groove 410 includes an open end 411 and a closed end 412. The open end 411 is located at the outer periphery of the protection assembly 400. The closed end 412 is closer to the center of the protection assembly 400 relative to the open end 411. The groove width of the open end 411 is greater than the groove width of the closed end 412; alternatively, the groove width of the introduction groove 410 gradually decreases from the open end 411 to the closed end 412.

[0078] Specifically, a through portion is formed from the outer periphery of the protective assembly 400 toward the center of the protective assembly 400, extending in the height direction, thereby forming an introduction groove 410. In the process of forming the through portion, the groove width of the open end 411 of the introduction groove 410 is made larger than the groove width of the closed end 412 of the introduction groove 410. This allows more grass to enter the introduction groove 410 from the open end 411 and allows the grass entering the introduction groove 410 to be compressed at the closed end 412, thereby facilitating cutting by the rotation of the cutting assembly 500.

[0079] Further optionally, the width of the inlet groove 410 gradually decreases from the open end 411 to the closed end 412, so that the grass entering the inlet groove 410 from the open end 411 of the inlet groove 410 approaches the closed end 412 and moves away from the open end 411 as the width of the inlet groove 410 gradually decreases.

[0080] Optional, see Figure 10The protection assembly 400 includes a central disk 420 and a plurality of extension units 430 surrounding the outer periphery of the central disk 420. The introduction slot 410 is formed between two adjacent extension units 430. The extension direction of each extension unit 430 intersects the radial direction of the central disk 420.

[0081] The center of the central disk 420 is the center of the protective assembly 400. The central disk 420 is disk-shaped. Multiple extension units 430 are sequentially spaced and surround the outer periphery of the central disk 420. The introduction slots 410 are formed between two adjacent extension units 430. Thus, multiple introduction slots 410 are formed on the outer periphery of the central disk 420. Furthermore, the multiple introduction slots 410 can be evenly spaced and distributed on the outer periphery of the central disk 420.

[0082] In this embodiment, by setting the extension direction of each of the extension units 430 to intersect with the radial direction of the central disk 420, the extension unit 430 can not only roll the grass on the outside into and bind it within the cutting range S2 of the cutting assembly 500, but also block the grass within the cutting range S2 from going out along the introduction groove 410, thereby avoiding the centrifugal phenomenon that causes the grass in the introduction groove 410 to be thrown out, thereby improving the grass entry rate (grass entry rate in the introduction groove 410) and grass binding rate (the probability that the grass entering the introduction groove 410 will be bound and will not go out) during the rotation of the protection assembly 400.

[0083] In other embodiments, the extending direction of each of the extending units 430 is the same as the radial direction of the central disk 420 .

[0084] Further optionally, the extension trajectory of each extension unit 430 is an arcuate trajectory. The arcuate extension trajectory of the extension unit 430 is related to the rotation direction of the protection assembly 400. For example, when the rotation direction of the protection assembly 400 is counterclockwise, the extension trajectory of each extension unit 430 is inclined to extend in an arcuate direction in the counterclockwise direction. For example, when the rotation direction of the protection assembly 400 is clockwise, the extension trajectory of each extension unit 430 is inclined to extend in an arcuate direction in the clockwise direction.

[0085] In this embodiment, the extension direction of each of the extension units 430 is arranged to intersect with the radial direction of the central disk 420, and the extension trajectory of each extension unit 430 is biased toward the rotation direction of the protection component 400 and extends in an arc. In this way, the extension unit 430 can not only roll the grass on the outside into and bind it within the cutting range S2 of the cutting component 500, but also block the grass within the cutting range S2 from going out along the introduction groove 410, avoiding the centrifugal phenomenon that causes the grass in the introduction groove 410 to be thrown out, thereby improving the grass entry rate (grass entry rate in the introduction groove 410) and grass bundling rate (the probability that the grass entering the introduction groove 410 will be bound and will not go out) during the rotation of the protection component 400.

[0086] In other embodiments, the extension trajectory of each extension unit 430 is a straight line trajectory.

[0087] Optional, see Figure 10 Each of the extension units 430 includes a connecting end 431 and an extending end 432 disposed opposite to each other. The connecting end 431 and the extending end 432 are two ends of the extending direction. The connecting end 431 is connected to the center disk 420. Furthermore, the connecting end 431 and the center disk 420 are interconnected as a whole.

[0088] The width of the extension end 432 is smaller than the width of the connecting end 431. The extension end 432 has a smaller width, for example, a pointed end, so that the opening end 411 of the introduction groove 410 has a larger width. On the other hand, by setting the width of the extension end 432 smaller, the extension end 432 has a smaller surface area for pushing and blocking the surrounding grass, making it easier for the extension end 432 to be inserted into the gaps in the grass, thereby guiding the grass into the introduction groove 410.

[0089] In other embodiments, the width of the extension unit 430 in the extension direction thereof may be relatively uniform.

[0090] The tips of the extension ends 432 of the plurality of extension units 430 are all located on the circumscribed circle of the protection assembly 400 .

[0091] Optional, see Figure 10 , the surrounding centers of the multiple extension ends 432 coincide with the center of the central disk 420.

[0092] The center of the plurality of extension ends 432 is the center of the circumscribed circle of the tip of each extension end 432 of the extension unit 430. The center of the center disk 420 is the center of the disk of the center disk 420. The center of the protection assembly 400 is collinear with the center of the center disk 420.

[0093] Furthermore, the rotating axis of the cutting assembly 500 can be located at the center of the cutting assembly 500, or can correspond to the center of the central disk 420, so that the cutting assembly 500 and the protective assembly 400 are coaxially arranged. When the cutting range S2 of the cutting assembly 500 is a circular area, the protection range S1 of the protective assembly 400 is also a circular area, and the cutting range S2 and the protection range S1 form two concentric circles. The radius of the circle ...

[0094] Optional, see Figure 9 The cutting assembly 500 is coaxially arranged with the first drive assembly 610. Specifically, the first drive assembly 610 includes a first motor and a motor output shaft. The rotating shaft of the cutting assembly 500 is axially connected to the motor output shaft, and the motor output shaft rotates to drive the cutting assembly 500 to rotate.

[0095] Optional, see Figure 11 The cutting assembly 500 includes at least one blade 510 and a blade shaft 520. The number of blades 510 is one or more. In this embodiment, the blades 510 can be arranged along the diameter of the cutting range S2. In other embodiments, the blades 510 can be arranged along the radius of the cutting range S2. In this embodiment, the number of blades 510 is one.

[0096] The blade 510 has an axial hole at its middle or end, and the blade shaft 520 passes through the axial hole.

[0097] Optionally, the blade shaft 520 is disposed through the blade 510. When the blade 510 is disposed along the diameter of the cutting range S2, the blade shaft 520 is disposed through the center (middle) of the blade 510. When the blade 510 is disposed along the radius of the cutting range S2, the blade shaft 520 is disposed through the end of the blade 510.

[0098] When the cutting assembly 500 rotates, the driving assembly 600 is connected to the blade shaft 520. The driving assembly 600 is used to drive the blade 510 to rotate via the blade shaft 520.

[0099] The blade shaft 520 is the rotating shaft of the aforementioned cutting assembly 500. For example, the first drive assembly 610 includes a motor and a motor output shaft. The blade shaft 520 and the motor output shaft are axially connected. Rotation of the motor output shaft drives the blade shaft 520 to rotate, thereby driving the blade 510 to rotate.

[0100] See also Figure 11At least one side of the blade 510 has a cutting edge 530. Specifically, the blade 510 has a cutting edge 530 on the rotational side. In this embodiment, the blade 510 is arranged along the diameter of the cutting range S2. The blade 510 has two cutting edges 530. The two cutting edges 530 are respectively arranged on both sides of the blade axis 520 in the radial direction, and both cutting edges 530 face the rotational side of the blade 510.

[0101] For example, when the protection assembly 400 rotates counterclockwise and the cutting assembly 500 rotates clockwise, the blade 530 on the left side of the blade shaft 520 faces upward, while the blade 530 on the right side of the blade shaft 520 faces downward. Thus, as the cutting assembly 500 rotates clockwise, both blades 530 operate simultaneously, each blade 530 moving relative to the extension unit 430. This compresses the grass deep into the guide groove 410 while the blades 530 quickly cut the grass, improving mowing efficiency.

[0102] Optional, see Figure 11 The rotating front side of the blade 510 has a cutting edge 530. The side of the blade 510 having the cutting edge 530 faces the rotating front side of the protection assembly 400. That is, the rotating front side of the blade 510 faces the rotating front side of the protection assembly 400, so that the grass is pressed tightly against the deep part of the introduction groove 410 while the cutting edge 530 quickly cuts the grass, thereby improving mowing efficiency.

[0103] Optional, see Figure 10 and Figure 11 The blade 530 is arc-shaped. The protection assembly 400 includes at least one arc-shaped extension unit 430. The arc-shaped cutting edge of the blade 530 is opposite to the arc-shaped opening of the extension unit 430.

[0104] For example, the protective assembly 400 rotates counterclockwise while the cutting assembly 500 rotates clockwise. The curved edge of the blade 530 on the left side of the blade shaft 520 faces upward, while the extension unit 430 on the left side of the center disk 420 extends in an arc-shaped manner in a counterclockwise direction, that is, extends downward in an arc-shaped manner from the center disk 420 to the outside. Therefore, the upward curved edge on the left side of the blade shaft 520 faces the downward curved extension unit 430, which compresses the grass deep into the guide groove 410 while allowing the blade 530 to quickly cut the grass, improving mowing efficiency. Furthermore, the blade 530 of the cutting assembly 500 cuts from the open end 411 toward the closed end 412 of the guide groove 410, preventing the grass within the guide groove 410 from escaping while also compressing and cutting the grass within the guide groove 410, thereby improving mowing efficiency.

[0105] The arc-shaped cutting edge of the blade 530 located on the right side of the blade shaft 520 faces downward, and the extension unit 430 on the right side of the center disk 420 extends in an arc shape in a counterclockwise direction, that is, it extends upward in an arc shape from the center disk 420 to the outside. The downward arc-shaped cutting edge on the right side of the blade shaft 520 is opposite to the arc-shaped extension unit 430, so that the grass is pressed against the deep part of the introduction groove 410, and the blade 530 cuts the grass quickly, thereby improving the mowing efficiency.

[0106] Optional, see Figure 12 The cutting mechanism 200 further includes a connecting bearing 710. The connecting bearing 710 includes a first shaft ring 711 and a second shaft ring 712 that are sleeved together and rotatable relative to each other. The first shaft ring 711 is connected to the cutting assembly 500. Furthermore, the first shaft ring 711 is sleeved around the outer circumference of the blade shaft 520. The second shaft ring 712 is connected to the protective assembly 400. Furthermore, the outer circumference of the second shaft ring 712 is connected to the inner circumference of the protective assembly 400.

[0107] This embodiment provides a connecting bearing 710, which includes a first shaft ring 711 and a second shaft ring 712 that are sleeved on each other and can rotate relative to each other. The first shaft ring 711 is sleeved on the outer periphery of the blade shaft 520, and the outer peripheral surface of the second shaft ring 712 is connected to the inner peripheral surface of the protective component 400, wherein the first shaft ring 711 and the second shaft ring 712 can move independently of each other, so that the cutting component 500 and the protective component 400 can move independently of each other, which is beneficial for the cutting component 500 and the protective component 400 to rotate in opposite directions or for the cutting component 500 to rotate at a speed greater than the protective component 400.

[0108] The structure of the cutting mechanism 200 provided in the second embodiment of the present application is illustrated below with reference to the accompanying drawings.

[0109] See also Figure 8 and Figure 9 The cutting mechanism 200 includes a protection component 400, a cutting component 500 and a driving component 600.

[0110] See also Figure 10 The protection component 400 includes a central disk 420 and a plurality of extension units 430 surrounding the outer periphery of the central disk 420 .

[0111] See also Figure 10 The guide slot 410 is formed between two adjacent extension units 430. The guide slot 410 is used to allow grass on the peripheral side to enter the protection assembly 400. The guide slot 410 extends from the outer periphery of the protection assembly 400 toward the center of the protection assembly 400. The extension direction of each extension unit 430 intersects the radial direction of the center disk 420.

[0112] The center of the central disk 420 is the center of the protective assembly 400. The central disk 420 is disk-shaped. Multiple extension units 430 are sequentially spaced and surround the outer periphery of the central disk 420. The introduction slots 410 are formed between two adjacent extension units 430. Thus, multiple introduction slots 410 are formed on the outer periphery of the central disk 420. Optionally, the multiple introduction slots 410 can be evenly spaced and distributed on the outer periphery of the central disk 420.

[0113] In this implementation, please refer to Figure 10 By setting the extension direction of each extension unit 430 to intersect with the radial direction of the central disk 420, the extension unit 430 can not only roll the grass on the outside into and bind it within the cutting range S2 of the cutting assembly 500, but also prevent the grass within the cutting range S2 from going out along the introduction groove 410, thereby preventing the grass in the introduction groove 410 from being thrown out due to centrifugal phenomenon, thereby improving the grass entry rate (grass entry rate in the introduction groove 410) and grass binding rate (the probability that the grass entering the introduction groove 410 will be bound and will not go out) of the protection assembly 400.

[0114] See also Figure 10 The cutting assembly 500 is located within the protection range S1 of the protection assembly 400. The protection range S1 of the protection assembly 400 refers to the height projection range of the protection assembly 400. In this embodiment, the protection assembly 400 protects the cutting assembly 500 and prevents the cutting assembly 500 from being exposed.

[0115] See also Figure 10 The introduction groove 410 is at least partially located within the cutting range S2 of the cutting assembly 500. The cutting range S2 is a rotation range formed by the rotation of the cutting assembly 500.

[0116] In the height direction, the cutting assembly 500 can be located at the bottom of the protection assembly 400; or, the cutting assembly 500 can be sandwiched in the middle of the protection assembly 400. In the height direction, part or all of the introduction groove 410 is directly opposite to the cutting range S2 of the cutting assembly 500.

[0117] In an optional implementation, see Figure 10 For example, the protection range S1 and the cutting range S2 are both circular areas. The cutting radius of the cutting component 500 is smaller than the protection radius of the protection component 400.

[0118] Of course, in other embodiments, the cutting area of the cutting assembly 500 near the outside of the fuselage body 100 is located within the protection range S1 of the protection assembly 400. The cutting area of the cutting assembly 500 near the inside of the fuselage body 100 may be located outside the protection range S1 of the protection assembly 400.

[0119] See also Figure 9 The drive assembly 600 is connected to the cutting assembly 500. The drive assembly 600 is used to drive the cutting assembly 500 to rotate. In this way, when grass follows the guide groove 410 and enters the cutting range S2 close to the cutting assembly 500, it is cut by the cutting assembly 500, thereby trimming the grass outside the main body 100, thereby avoiding blind spots and improving the mowing effect.

[0120] Optionally, the protection assembly 400 may be in a stationary state relative to the main body 100. Alternatively, the protection assembly 400 may be in a rotating state relative to the main body 100.

[0121] The present invention provides a cutting mechanism 200 comprising a protective assembly 400, a cutting assembly 500, and a drive assembly 600. The protective assembly 400 comprises a central disk 420 and a plurality of extension units 430 surrounding the outer periphery of the central disk 420. An inlet groove 410 is formed between two adjacent extension units 430, allowing grass to flow through the inlet groove 410 into the cutting range S2 adjacent to the cutting assembly 500. The extension direction of each extension unit 430 intersects with the radial direction of the center disk 420; the cutting assembly 500 is arranged in the protection range S1 of the protection assembly 400, and the introduction groove 410 is at least partially located in the cutting range S2 of the cutting assembly 500; the driving assembly 600 is connected to the cutting assembly 500, and the driving assembly 600 is used to drive the cutting assembly 500 to rotate, so that the grass entering the introduction groove 410 is cut by the cutting assembly 500, so as to realize the edging of the grass located outside the fuselage body 100, thereby avoiding leaving a mowing blind spot and improving the mowing effect.

[0122] Optionally, the protection component 400 can rotate relative to the main body 100. The protection range S1 of the protection component 400 is the range formed by the rotation of the protection component 400.

[0123] See also Figure 10 The cutting assembly 500 is disposed within the protection range S1 of the protection assembly 400. That is, the cutting assembly 500 is located within the protection range S1 formed by the rotation of the protection assembly 400.

[0124] The protection component 400 in this embodiment can not only serve as a component to prevent the cutting component 500 from being directly exposed, but also can serve as a component to guide grass outside the cutting range S2 into the cutting range S2 of the cutting component 500 and bind and squeeze the grass, thereby improving the cutting efficiency and further improving the edging efficiency.

[0125] For example, when the cutting mechanism 200 is located on the left side of the main body 100 , the plurality of introduction slots 410 are arranged in a counterclockwise direction around the center of the protection component 400 .

[0126] As the cutting device 1000 moves forward and the protective component 400 rotates clockwise, the grass on the left side of the body 100 enters the guide groove 410 as the protective component 400 rotates, and as the protective component 400 rotates, the grass is able to enter a deeper position in the guide groove 410 and will not go out from the notch of the guide groove 410. The grass is squeezed and bound in the guide groove 410, so that the grass can be cut quickly during the rotation of the cutting component 500.

[0127] For example, when the cutting mechanism 200 is located on the right side of the main body 100, the plurality of guide slots 410 are arranged counterclockwise around the center of the protection assembly 400. Furthermore, the rotation direction of the protection assembly 400 is also counterclockwise.

[0128] As the cutting device 1000 moves forward and the protective component 400 rotates counterclockwise, the grass on the right side of the body 100 enters the guide groove 410 as the protective component 400 rotates, and as the protective component 400 rotates, the grass is able to enter a deeper position in the guide groove 410 and will not go out from the notch of the guide groove 410. The grass is squeezed and bound in the guide groove 410, so that the grass can be cut quickly during the rotation of the cutting component 500.

[0129] The structure of the protection component 400 is described below with reference to the accompanying drawings.

[0130] Optional, see Figure 16 and Figure 17 The protective assembly 400 has a receiving cavity 440. The receiving cavity 440 is in communication with the introduction groove 410. The cutting assembly 500 is disposed within the receiving cavity 440, so that the protective assembly 400 protects the surrounding side of the cutting assembly 500. Further optionally, the cutting range S2 overlaps with the area where the receiving cavity 440 is located.

[0131] For details, please refer to Figure 11 and Figure 17 The protection assembly 400 includes a first cover body 451 and a second cover body 452 .

[0132] The first cover 451 and the second cover 452 overlap each other in the height direction and enclose the accommodating cavity 440. The protection assembly 400 can protect the cutting assembly 500 in both the horizontal direction and the vertical direction (height direction).

[0133] Optionally, the first cover body 451 and the second cover body 452 are detachably connected, so that the cutting assembly 500 can be installed in the accommodating cavity 440 of the first cover body 451 and the second cover body 452 by disassembling the first cover body 451 and the second cover body 452, and it is also convenient to disassemble the cutting assembly 500 from the accommodating cavity 440 of the first cover body 451 and the second cover body 452.

[0134] Optionally, both the first cover 451 and the second cover 452 include the central disk 420 and a plurality of extension units 430 surrounding the outer periphery of the central disk 420 .

[0135] Each of the extension units 430 includes a first extension portion close to the central disk 420 and used to enclose the accommodating cavity 440 , and a second extension portion away from the central disk 420 and located on the outer periphery of the accommodating cavity 440 .

[0136] In other words, both the first cover 451 and the second cover 452 have a central disc 420 and a plurality of extension units 430 disposed on the outer periphery. A radially connected inlet groove 410 is formed between two adjacent extension units 430, allowing grass on the outer periphery to be drawn into the inlet groove 410 during rotation. Furthermore, the first extension portion and the second extension portion are integrally formed, i.e., two distinct portions of a single extension unit 430.

[0137] The second extension portion of the first cover 451 and the second extension portion of the second cover 452 are both connected by detachable fixing members. The detachable fixing members include but are not limited to screws. The second extension portion of the first cover 451 and the second extension portion of the second cover 452 are both provided with facing threaded holes.

[0138] A screw is inserted into the threaded hole, locking the second extension of the first cover 451 with the second extension of the second cover 452. By removing the screw, the second extension of the first cover 451 can be separated from the second extension of the second cover 452. This achieves a detachable connection between the first and second covers 451, 452. Because the threaded hole and screw are located outside the cutting range S2, the detachable connection between the first and second covers 451, 452 does not affect the rotation of the cutting assembly 500.

[0139] Furthermore, when the second extension portion of the first cover body 451 and the second extension portion of the second cover body 452 are both connected by detachable fixing parts, the center disk 420 and the first extension portion of the first cover body 451 and the center disk 420 and the first extension portion of the second cover body 452 are opposite and surrounded to form an accommodating cavity 440.

[0140] Along the height direction, part of the accommodating chamber 440 is connected to the inlet slot 410. In other words, the slots on the periphery of the protection assembly 400 can enter the area where the accommodating chamber 440 is located through the inlet slot 410. The cutting assembly 500 is located in the accommodating chamber 440 and rotates therein to cut the grass therein.

[0141] Optional, see Figure 10 The introduction groove 410 includes an open end 411 and a closed end 412. The open end 411 is located at the outer periphery of the protection assembly 400. The closed end 412 is closer to the center of the protection assembly 400 relative to the open end 411. The groove width of the open end 411 is greater than the groove width of the closed end 412; alternatively, the groove width of the introduction groove 410 gradually decreases from the open end 411 to the closed end 412.

[0142] Specifically, a through portion is formed from the outer periphery of the protective assembly 400 toward the center of the protective assembly 400, extending in the height direction, thereby forming an introduction groove 410. In the process of forming the through portion, the groove width of the open end 411 of the introduction groove 410 is made larger than the groove width of the closed end 412 of the introduction groove 410. This allows more grass to enter the introduction groove 410 from the open end 411 and allows the grass entering the introduction groove 410 to be compressed at the closed end 412, thereby facilitating cutting by the rotation of the cutting assembly 500.

[0143] For further optional information, see Figure 10 The width of the inlet groove 410 gradually decreases from the open end 411 to the closed end 412, so that the grass entering the inlet groove 410 from the open end 411 of the inlet groove 410 approaches the closed end 412 and moves away from the open end 411 as the width of the inlet groove 410 gradually decreases.

[0144] For further optional information, see Figure 10 The extension path of each extension unit 430 is an arcuate path. The arcuate extension path of the extension unit 430 is related to the rotation direction of the protection assembly 400. For example, when the rotation direction of the protection assembly 400 is counterclockwise, the extension path of each extension unit 430 is inclined to extend in an arcuate direction in the counterclockwise direction. For example, when the rotation direction of the protection assembly 400 is clockwise, the extension path of each extension unit 430 is inclined to extend in an arcuate direction in the clockwise direction.

[0145] In this embodiment, the extension direction of each of the extension units 430 is arranged to intersect with the radial direction of the central disk 420, and the extension trajectory of each extension unit 430 is biased toward the rotation direction of the protection component 400 and extends in an arc. In this way, the extension unit 430 can not only roll the grass on the outside into and bind it within the cutting range S2 of the cutting component 500, but also block the grass within the cutting range S2 from going out along the introduction groove 410, avoiding the centrifugal phenomenon that causes the grass in the introduction groove 410 to be thrown out, thereby improving the grass entry rate (grass entry rate in the introduction groove 410) and grass bundling rate (the probability that the grass entering the introduction groove 410 will be bound and will not go out) during the rotation of the protection component 400.

[0146] In other embodiments, the extension trajectory of each extension unit 430 is a straight line trajectory.

[0147] Optional, see Figure 10 Each of the extension units 430 includes a connecting end 431 and an extending end 432 disposed opposite to each other. The connecting end 431 and the extending end 432 are two ends of the extending direction. The connecting end 431 is connected to the center disk 420. Furthermore, the connecting end 431 and the center disk 420 are interconnected as a whole.

[0148] See also Figure 10 The width of the extension end 432 is smaller than the width of the connecting end 431. The extension end 432 has a smaller width. For example, the extension end 432 is pointed, so that the opening end 411 of the introduction groove 410 has a larger width. On the other hand, by setting the width of the extension end 432 smaller, the extension end 432 has a smaller surface area for pushing and blocking the surrounding grass, making it easier for the extension end 432 to be inserted into the gaps in the grass, thereby guiding the grass into the introduction groove 410.

[0149] In other embodiments, the width of the extension unit 430 in the extension direction thereof may be relatively uniform.

[0150] The tips of the extension ends 432 of the plurality of extension units 430 are all located on the circumscribed circle of the protection assembly 400 .

[0151] Optional, see Figure 10 , the surrounding centers of the multiple extension ends 432 coincide with the center of the central disk 420.

[0152] The center of the plurality of extension ends 432 is the center of the circumscribed circle of the tip of each extension end 432 of the extension unit 430. The center of the center disk 420 is the center of the disk of the center disk 420. The center of the protection assembly 400 is collinear with the center of the center disk 420.

[0153] Furthermore, the rotating axis of the cutting assembly 500 can be located at the center of the cutting assembly 500, or can correspond to the center of the central disk 420, so that the cutting assembly 500 and the protective assembly 400 are coaxially arranged. When the cutting range S2 of the cutting assembly 500 is a circular area, the protection range S1 of the protective assembly 400 is also a circular area, and the cutting range S2 and the protection range S1 form two concentric circles. The radius of the circle ...

[0154] Optional, see Figure 9 The cutting assembly 500 is coaxially arranged with the first drive assembly 610. Specifically, the first drive assembly 610 includes a motor and a motor output shaft. The rotating shaft of the cutting assembly 500 is axially connected to the motor output shaft. The motor output shaft rotates to drive the cutting assembly 500 to rotate.

[0155] Optional, see Figure 11 The cutting assembly 500 includes at least one blade 510 and a blade shaft 520. The number of blades 510 is one or more. In this embodiment, the blades 510 can be arranged along the diameter of the cutting range S2. In other embodiments, the blades 510 can be arranged along the radius of the cutting range S2. In this embodiment, the number of blades 510 is one.

[0156] The blade 510 has an axial hole at its middle or end, and the blade shaft 520 passes through the axial hole.

[0157] Optionally, the blade shaft 520 is disposed through the blade 510. When the blade 510 is disposed along the diameter of the cutting range S2, the blade shaft 520 is disposed through the center (middle) of the blade 510. When the blade 510 is disposed along the radius of the cutting range S2, the blade shaft 520 is disposed through the end of the blade 510.

[0158] When the cutting assembly 500 rotates, the driving assembly 600 is connected to the blade shaft 520. The driving assembly 600 is used to drive the blade 510 to rotate via the blade shaft 520.

[0159] The blade shaft 520 is the rotating shaft of the aforementioned cutting assembly 500. For example, the first drive assembly 610 includes a motor and a motor output shaft. The blade shaft 520 and the motor output shaft are axially connected. Rotation of the motor output shaft drives the blade shaft 520 to rotate, thereby driving the blade 510 to rotate.

[0160] See also Figure 11At least one side of the blade 510 has a cutting edge 530. Specifically, the blade 510 has a cutting edge 530 on the rotational side. In this embodiment, the blade 510 is arranged along the diameter of the cutting range S2. The blade 510 has two cutting edges 530. The two cutting edges 530 are respectively arranged on both sides of the blade axis 520 in the radial direction, and both cutting edges 530 face the rotational side of the blade 510.

[0161] For example, see Figure 14 , the protection assembly 400 rotates counterclockwise, while the cutting assembly 500 rotates clockwise. The blade 530 on the left side of the blade shaft 520 faces upward, while the blade 530 on the right side of the blade shaft 520 faces downward. Thus, as the cutting assembly 500 rotates clockwise, the blades 530 on both sides operate simultaneously, each blade 530 moving relative to the extension unit 430. This compresses the grass deep within the introduction groove 410 while allowing the blades 530 to quickly cut the grass, improving mowing efficiency. Furthermore, the blades 530 of the cutting assembly 500 cut from the open end 411 toward the closed end 412 of the introduction groove 410, preventing the grass within the introduction groove 410 from escaping while also compressing and cutting the grass within the introduction groove 410, thereby improving mowing efficiency.

[0162] Optional, see Figure 11 The rotating front side of the blade 510 has a cutting edge 530. The side of the blade 510 having the cutting edge 530 faces the rotating front side of the protection assembly 400. That is, the rotating front side of the blade 510 faces the rotating front side of the protection assembly 400, so that the grass is pressed tightly against the deep part of the introduction groove 410 while the cutting edge 530 quickly cuts the grass, thereby improving mowing efficiency.

[0163] Optional, see Figure 11 The blade 530 is arc-shaped. The protection assembly 400 includes at least one arc-shaped extension unit 430. The arc-shaped cutting edge of the blade 530 is opposite to the arc-shaped opening of the extension unit 430.

[0164] For example, see Figure 14 The protective assembly 400 rotates counterclockwise, while the cutting assembly 500 rotates clockwise. The arc-shaped cutting edge of the blade 530 on the left side of the blade shaft 520 faces upward, while the extension unit 430 on the left side of the center disk 420 extends in an arc-shaped manner in a counterclockwise direction, that is, extending downward from the center disk 420 to the outside. Therefore, the upward-facing arc-shaped cutting edge on the left side of the blade shaft 520 faces the downward-facing arc-shaped extension unit 430, pressing the grass tightly against the deep portion of the guide groove 410 while the blade 530 quickly cuts the grass, improving mowing efficiency.

[0165] See also Figure 2 and Figure 14The curved cutting edge of the blade 530 on the right side of the blade shaft 520 faces downward, and the extension unit 430 on the right side of the center disk 420 extends in an arc in a counterclockwise direction, that is, extending upward in an arc from the center disk 420 to the outside. The downward-facing curved cutting edge on the right side of the blade shaft 520 faces the upward-facing curved extension unit 430. This allows the grass to be compressed deep within the introduction groove 410 while the blade 530 quickly cuts the grass, improving mowing efficiency. The blade 530 of the cutting assembly 500 also cuts from the open end 411 toward the closed end 412 of the introduction groove 410, preventing the grass in the introduction groove 410 from escaping the introduction groove 410 while also compressing and cutting the grass in the introduction groove 410, improving mowing efficiency.

[0166] The driving assembly 600 is described below with reference to the accompanying drawings.

[0167] Optional, see Figure 9 The drive assembly 600 includes a first drive assembly 610. The first drive assembly 610 is connected to the cutting assembly 500. The first drive assembly 610 is used to drive the cutting assembly 500 to rotate. In this embodiment, the cutting assembly 500 rotates under the drive of the first drive assembly 610, thereby cutting the grass entering the introduction groove 410.

[0168] For the first optional implementation, please refer to Figure 9 The first driving component 610 is connected to the protection component 400. The first driving component 610 is used to drive the protection component 400 to rotate. The first driving component 610 will be described in detail later.

[0169] In this embodiment, the cutting component 500 and the protection component 400 can be driven by the same drive structure (the first drive component 610). Compared with setting up two drive structures to drive the cutting component 500 and the protection component 400 respectively, the number of drive structures and the space occupied by the drive structures can be reduced, thereby reducing the space occupied and weight of the entire cutting mechanism 200. The lightweight design is more conducive to the cutting mechanism 200 to perform edge mowing tasks.

[0170] For the second optional implementation, please refer to Figure 13 The drive assembly 600 further includes a second drive assembly 620. The second drive assembly 620 is connected to the protection assembly 400. The second drive assembly 620 is used to drive the protection assembly 400 to rotate. The first drive assembly 610 and the second drive assembly 620 will be described in detail later.

[0171] In this embodiment, the cutting component 500 and the protection component 400 are driven by different drive structures respectively. In this way, on the one hand, the cutting component 500 and the protection component 400 can operate independently, so that the cutting component 500 and the protection component 400 can flexibly design their respective rotation speeds and rotation directions. On the other hand, it also simplifies the complexity of each drive structure, facilitates the design of each part of the drive structure, and saves the cost of designing, mold opening, processing, and assembling the drive component 600.

[0172] The present application does not impose any specific limitation on the rotation speed of the protection assembly 400. The present application does not impose any specific limitation on the rotation speed of the cutting assembly 500.

[0173] The rotational speed of the protection assembly 400 is slower than that of the cutting assembly 500. In other words, the cutting assembly 500 rotates faster than the protection assembly 400. This allows the cutting assembly 500 to rotate at a higher relative speed relative to the protection assembly 400, allowing the grass trapped within the guide groove 410 of the protection assembly 400 to be cut by the cutting assembly 500 at a higher relative speed, thereby improving mowing efficiency.

[0174] Optionally, the rotation speed of the cutting assembly 500 is greater than or equal to 10 times the rotation speed of the protection assembly 400. When the cutting assembly 500 and the protection assembly 400 are driven by the same drive assembly, that is, in an embodiment in which a single motor + transmission assembly drives the cutting assembly 500 and the protection assembly 400 simultaneously, the reduction ratio of the transmission assembly is greater than or equal to 10. When the cutting assembly 500 and the protection assembly 400 are driven by two independent drive assemblies respectively, that is, in an embodiment in which dual motors drive the cutting assembly 500 and the protection assembly 400, the speed of the driving motor of the cutting assembly 500 is greater than or equal to 10 times the speed of the driving motor of the protection assembly 400; or, when the speeds of the dual motors are the same, the reduction ratio of the reduction gear of the protection assembly 400 is greater, and the reduction ratio of the reduction gear of the protection assembly 400 is greater than or equal to 10 times the reduction ratio of the reduction gear of the cutting assembly 500.

[0175] For example, the rotation speed of the cutting assembly 500 is 10 times, 15 times, 20 times, 25 times, 30 times, etc., the rotation speed of the protection assembly 400 .

[0176] Further optionally, the rotation speed of the protection component 400 is less than or equal to 200 revolutions per minute. For example, the rotation speed of the protection component 400 is 1 to 2 revolutions per second.

[0177] The present application designs the rotation speed of the protection component 400 to be much lower than the rotation speed of the cutting component 500, and the rotation speed of the protection component 400 is relatively slow and suitable. On the one hand, the rotation speed design of the protection component 400 is conducive to rolling in the grass; on the other hand, the rotation speed of the protection component 400 is relatively slow, reducing the risk of scratches when it comes into contact with the human body; on the other hand, the rotation speed of the protection component 400 is relatively slow, which also reduces the impact force when the protection component 400 comes into contact with the wall, thereby avoiding physical damage.

[0178] The present application does not impose any specific limitation on the rotation direction of the protection assembly 400. The present application does not impose any specific limitation on the rotation direction of the cutting assembly 500.

[0179] In an optional implementation, see Figure 14 The rotation direction of the protection assembly 400 is opposite to that of the cutting assembly 500. In other words, the grass in the introduction groove 410 rotates with the protection assembly 400 toward the cutting side of the cutting assembly 500. The grass in the introduction groove 410 is subjected to the rotational driving force of the protection assembly 400 on one side and the rotational cutting force of the cutting assembly 500 on the other side. The grass in the introduction groove 410 is clamped on both sides by the protection assembly 400 and the cutting assembly 500 and is quickly cut by the cutting assembly 500, thereby improving the cutting efficiency.

[0180] In another optional implementation, please refer to Figure 15 The rotation direction of the protection assembly 400 is the same as that of the cutting assembly 500. Since the rotation speed of the cutting assembly 500 is greater than that of the protection assembly 400, the cutting assembly 500 can rotate at a higher relative speed relative to the protection assembly 400, so that the grass trapped in the guide groove 410 of the protection assembly 400 is cut by the cutting assembly 500 at a higher relative speed, thereby improving the efficiency of mowing.

[0181] Embodiment 3 of the present application provides a cutting mechanism 200 .

[0182] See also Figures 18 and 19 The cutting mechanism 200 is applied to a self-moving device. The self-moving device includes but is not limited to a main body 100 of a cutting device 1000 such as a lawn mower and an edger.

[0183] See also Figures 18 to 21 The cutting mechanism 200 includes a protection component 400, a cutting component 500 and a connecting component 800.

[0184] See also Figure 10 The protection component 400 has at least one introduction slot 410. Specifically, the number of the introduction slots 410 is one or more. This embodiment takes the number of the introduction slots 410 as an example.

[0185] Optionally, at least a portion of the introduction slot 410 is located outside the orthographic projection area of the fuselage body 100 , so that grass outside the fuselage body 100 can enter the introduction slot 410 .

[0186] See also Figure 10 The introduction groove 410 extends from the outer periphery of the protection component 400 toward the center of the protection component 400, so that the grass located outside the fuselage body 100 can follow the introduction groove 410 into the cutting range S2 close to the cutting component 500.

[0187] For further optional information, see Figure 10 The extension direction of each of the introduction grooves 410 is inclined compared to the travel direction, so that as the cutting device 1000 advances and the protection component 400 rotates, the grass on the outside is brought into a position close to the center of the protection component 400 along the introduction groove 410.

[0188] In a first optional embodiment, the number of the cutting mechanism 200 is one, and the plurality of the introduction grooves 410 are arranged in a clockwise direction around the center of the protection component 400 .

[0189] For example, when the cutting mechanism 200 is located on the left side of the main body 100 , the plurality of introduction slots 410 are arranged in a counterclockwise direction around the center of the protection component 400 .

[0190] As the cutting device 1000 moves forward and the protective component 400 rotates clockwise, the grass on the left side of the body 100 enters the guide groove 410 as the protective component 400 rotates. As the protective component 400 rotates, the grass is able to enter a deeper position in the guide groove 410 and will not go out from the notch of the guide groove 410. The grass is squeezed and bound in the guide groove 410, thereby preparing for the subsequent cutting component 500 to cut the grass.

[0191] For the second optional implementation, please refer to Figure 2 and Figure 10 The number of the cutting mechanism 200 is one, and the plurality of the introduction grooves 410 are arranged counterclockwise around the center of the protection component 400 .

[0192] For example, when the cutting mechanism 200 is located on the right side of the main body 100, the plurality of guide slots 410 are arranged counterclockwise around the center of the protection assembly 400. Furthermore, the rotation direction of the protection assembly 400 is also counterclockwise.

[0193] As the cutting device 1000 moves forward and the protective component 400 rotates counterclockwise, the grass on the right side of the body 100 enters the guide groove 410 as the protective component 400 rotates. As the protective component 400 rotates, the grass is able to enter a deeper position in the guide groove 410 and will not go out from the notch of the guide groove 410. The grass is squeezed and bound in the guide groove 410, thereby preparing for the subsequent cutting component 500 to cut the grass.

[0194] In a third optional embodiment, the number of cutting mechanisms 200 is two, wherein the multiple introduction grooves 410 of one cutting mechanism 200 are arranged in a clockwise direction around the center of the protective component 400, and the multiple introduction grooves 410 of the other cutting mechanism 200 are arranged in a counterclockwise direction around the center of the protective component 400.

[0195] See also Figure 10 , the cutting assembly 500 is arranged within the protection range S1 of the protection assembly 400. The protection range S1 of the protection assembly 400 refers to the protection range S1 formed by the rotation of the protection assembly 400. That is, the cutting assembly 500 is located within the protection range S1 formed by the rotation of the protection assembly 400. Furthermore, the introduction groove 410 is at least partially located within the cutting range S2 of the cutting assembly 500. The cutting range S2 is the rotation range formed by the rotation of the cutting assembly 500. In the height direction, the cutting assembly 500 can be located at the bottom of the protection assembly 400; or, the cutting assembly 500 can also be clamped in the middle of the protection assembly 400.

[0196] See also Figure 10 , a portion of the introduction groove 410 is located within the cutting range S2 of the cutting assembly 500. Along the height direction, a portion or all of the introduction groove 410 is directly opposite to the cutting range S2 of the cutting assembly 500.

[0197] See also Figure 2 and Figure 10 At least a portion of the guide slot 410 on the protection assembly 400 is located outside the orthographic projection area of the self-moving device. The cutting mechanism 200 extends out of the body 100 and is used for edge cutting.

[0198] The blade of a typical lawn mower is located at the bottom, which is unable to cut weeds at the junction of lawn, hard road surface, or wall surface. Furthermore, when trimming the lawn, the trimming cutting mechanism 200 may collide with a hard wall or encounter a stone obstacle, which may cause physical damage to the trimming cutting mechanism 200 or prevent the self-propelled device from moving forward.

[0199] See also Figure 1 、 Figure 18 、 Figure 19 and Figure 20The connecting assembly 800 is used to connect a portion of the cutting mechanism 200 to the self-moving device. This connecting assembly 800 is used to rotate the cutting assembly 500 (cutting mechanism 200) to avoid obstacles when the self-moving device encounters them. Rotation of the cutting mechanism 200 refers to rotation of the entire cutting mechanism 200 in the height direction.

[0200] For example, during the forward movement of the self-moving device, since the cutting mechanism 200 extends beyond the positive projection area of the self-moving device, the front of the cutting mechanism 200 encounters an obstacle. Under the resistance of the obstacle, the connecting component 800 drives the cutting mechanism 200 to rotate toward the rear end in the height direction, so that the forward path of the self-moving device remains unchanged. The cutting mechanism 200 rotates backward to avoid the obstacle. After crossing the obstacle, the connecting component 800 drives the cutting mechanism 200 to return to its initial position and continue mowing and edging.

[0201] The cutting mechanism 200 provided in the present application includes a protection component 400, a cutting component 500, and a connecting component 800. The protection component 400 has at least one introduction groove 410. The introduction groove 410 extends from the outer periphery of the protection component 400 toward the side where the center of the protection component 400 is located. The cutting component 500 is arranged within the protection range S1 of the protection component 400. The introduction groove 410 is at least partially located within the cutting range S2 of the cutting component 500. A portion of the introduction groove 410 is located within the cutting range S2 of the cutting component 500. At least a portion of the introduction groove 410 on the protection component 400 is located outside the positive projection area of the self-moving device. The connecting component 800 is used to connect the cutting mechanism 200 and the self-moving device. The connecting component 800 is used to drive the cutting component 500 to rotate to avoid obstacles when the self-moving device encounters obstacles. Not only can the cutting mechanism 200 of the self-moving device mow the grass and trim the edges, but it can also automatically overcome obstacles during the process of mowing the grass and trimming the edges, avoiding a hard collision between the cutting mechanism 200 and the obstacle, which may cause physical damage to the trimming cutting mechanism 200 or the self-moving device to be unable to move forward, thereby improving the obstacle-crossing ability and intelligence of the self-moving device.

[0202] Optional, see Figures 21-26 The cutting mechanism 200 includes a connecting bracket 210 (see Figure 21 The connecting bracket 210 is connected to the cutting assembly 500 or the protecting assembly 400. The connecting bracket 210 is used to connect the cutting assembly 500 to the connecting assembly 800, or to connect the protecting assembly 400 to the connecting assembly 800. The connection between the cutting assembly 500 and the protecting assembly 400 further connects the cutting assembly 500 to the connecting assembly 800.

[0203] In this embodiment, when the cutting mechanism 200 is in the edge-cutting position, the connecting bracket 210 extends approximately in the width direction, one end of the connecting bracket 210 is connected to the protection component 400 , and the other end of the connecting bracket 210 is connected to the connecting component 800 .

[0204] The specific structure of the connection component 800 is described below with reference to the accompanying drawings.

[0205] See also Figure 22-26 The connecting assembly 800 includes a rotating shaft assembly 810 and an elastic reset assembly 820 .

[0206] See also Figure 22-26 The rotating shaft assembly 810 is disposed along the height direction. The rotating shaft assembly 810 is connected to the connecting bracket 210. The rotating shaft assembly 810 is disposed along the height direction through the connecting bracket 210. The connecting bracket 210 is fixedly connected to the rotating shaft assembly 810 via a tight-fitting connector (such as a gasket, screw, etc.). The connecting bracket 210 can rotate by (or with) the rotation of the rotating shaft assembly 810.

[0207] The elastic reset assembly 820 is provided on the self-moving device. Furthermore, at least a portion of the elastic reset assembly 820 is fixed relative to the self-moving device in a horizontal plane. Detailed description will be given later.

[0208] The elastic reset assembly 820 can apply elastic force to the connecting bracket 210 or the rotating shaft assembly 810 to rotate the connecting bracket 210 to the reset position.

[0209] For example, during the forward movement of the self-moving device, since the cutting mechanism 200 extends beyond the positive projection area of the self-moving device, the front of the cutting mechanism 200 encounters an obstacle. Under the resistance of the obstacle, the connecting bracket 210 and the rotating shaft assembly 810 drive the cutting mechanism 200 to rotate toward the rear end in the height direction compared to the self-moving device, so that the forward path of the self-moving device remains unchanged. The cutting mechanism 200 rotates backward to avoid the obstacle. After crossing the obstacle, the elastic reset assembly 820 can apply elastic force to the connecting bracket 210 or the rotating shaft assembly 810, and the rotating shaft assembly 810 drives the connecting bracket 210 to rotate to the reset position, and drives the cutting mechanism 200 to rotate to the edging position to continue mowing and edging.

[0210] Optional, see Figure 22-26 The elastic reset assembly 820 includes a buffer seat 821 and a rotating shaft elastic member 822.

[0211] The buffer seat 821 is connected to the self-moving device. Furthermore, the side of the self-moving device has a retaining groove, and the buffer seat 821 is installed in the retaining groove from the top along the height direction. The retaining groove limits the movement of the buffer seat 821 within the horizontal plane. Furthermore, the buffer seat 821 is fixed to the self-moving device in the height direction via screws.

[0212] See also Figure 22-26 The buffer seat 821 is located on the connecting bracket 210 and is sleeved around the periphery of the shaft assembly 810. The buffer seat 821 and the connecting bracket 210 are arranged in a height direction and are sleeved around the periphery of the shaft assembly 810.

[0213] See also Figure 22-26 Furthermore, the connecting bracket 210 includes a bracket body 211, a first bracket arm 212, and a second bracket arm 213, which are interconnected as one body. The bracket body 211 is used to accommodate the drive assembly 600 and the installation protection assembly 400. The bracket body 211 is located outside the positioning slot, and the first bracket arm 212 and the second bracket arm 213 are spaced apart in the height direction. The buffer seat 821 is located between the first bracket arm 212 and the second bracket arm 213. The buffer seat 821 is mounted on the periphery of the rotating shaft assembly 810 and is spaced apart from the rotating shaft assembly 810.

[0214] Optional, see Figure 22-26 The rotating shaft elastic member 822 is disposed between the buffer seat 821 and the rotating shaft assembly 810. One end of the rotating shaft elastic member 822 elastically abuts or is elastically connected to the rotating shaft assembly 810, and at least one end of the rotating shaft elastic member 822 elastically abuts or is elastically connected to the buffer seat 821. The rotating shaft elastic member 822 elastically connects the rotating shaft assembly 810 and the buffer seat 821 in the horizontal plane, thereby enabling the rotating shaft assembly 810 to rotate toward the front or rear end relative to the buffer seat 821 in the horizontal plane to avoid obstacles.

[0215] For details, please refer to Figure 24 and Figure 26 The buffer seat 821 has a hole. A first abutting portion 823 is protruded on the hole wall.

[0216] See also Figure 24 and Figure 26The rotating shaft assembly 810 includes a rotating shaft 811 and a rotating shaft connecting member 812. The rotating shaft 811 is fixedly connected to the connecting bracket 210. The rotating shaft connecting member 812 is fixed to the outer wall of the rotating shaft 811. The rotating shaft connecting member 812 is located in the hole of the buffer seat 821, that is, the rotating shaft connecting member 812 is accommodated in the hole of the buffer seat 821. The rotating shaft elastic member 822 is sleeved on the rotating shaft connecting member 812. One end of the rotating shaft elastic member 822 elastically abuts or elastically connects to the rotating shaft connecting member 812, and at least one other end of the rotating shaft elastic member 822 elastically abuts or elastically connects to the first abutting portion 823. The rotating shaft elastic member 822 enables the rotating shaft assembly 810 to rotate relative to the buffer seat 821 in the horizontal plane, thereby enabling the rotating shaft assembly 810 to rotate toward the front end or toward the rear end in the horizontal plane relative to the buffer seat 821 to avoid obstacles.

[0217] For details, please refer to Figure 24 and Figure 26 The rotating shaft connecting member 812 includes a main body 813 and a hook portion 814 protruding from the main body 813. The main body 813 is sleeved on the rotating shaft 811. The main body 813 and the hook portion 814 are an integral structure.

[0218] See also Figure 25 and Figure 26 The rotating shaft elastic member 822 is a torsion spring. The rotating shaft elastic member 822 includes a first torsion arm 815, a first spiral arm 816, an intermediate connecting arm 817, a second spiral arm 818, and a second torsion arm 819, which are connected in sequence. The first torsion arm 815 and the second torsion arm 819 both abut against the first abutment portion 823 of the buffer seat 821 along the height direction. The first spiral arm 816 and the second spiral arm 818 are sleeved on the rotating shaft 811. The intermediate connecting arm 817 engages with the hook portion 814 of the rotating shaft connecting member 812.

[0219] For example, during the advancement of the self-moving device, since the cutting mechanism 200 extends beyond the positive projection area of the self-moving device, the front of the cutting mechanism 200 encounters an obstacle. Under the resistance of the obstacle, the protection component 400 drives the connecting bracket 210 to rotate, and the connecting bracket 210 drives the rotating shaft 811 and the rotating shaft connecting member 812 to rotate. The rotating shaft elastic member 822 is a torsion spring. Since the first torsion arm 815 and the second torsion arm 819 are relatively fixed, and the middle connecting arm 817 rotates with the rotating shaft connecting member 812, the first spiral arm 816 and the second spiral arm 818 are deformed. At this time, the torsion spring is in an energy storage state. During the process, the cutting mechanism 200 rotates toward the rear end in the height direction compared to the self-moving device, so that the forward path of the self-moving device remains unchanged. The cutting mechanism 200 rotates backward to avoid the obstacle. After crossing the obstacle, the protection component 400 is no longer subject to resistance from the obstacle. The first spiral arm 816 and the second spiral arm 818 drive the rotating shaft connector 812 and the rotating shaft 811 to return to their initial positions under the elastic restoring force, and then drive the connecting bracket 210, the protection component 400 and the cutting component 500 to return to their initial positions, driving the cutting mechanism 200 to rotate to the edging position to continue mowing and edging.

[0220] Optional, see Figure 13 , the cutting mechanism 200 also includes a driving assembly 600.

[0221] Optional, see Figure 13 The driving assembly 600 is connected to the protecting assembly 400 and is used to drive the protecting assembly 400 to rotate. During the rotation of the protecting assembly 400, the grass outside the main body 100 is continuously guided along the guide groove 410 into the cutting range S2 close to the cutting assembly 500.

[0222] Alternatively, see Figure 12 and Figure 13 The drive assembly 600 is connected to the cutting assembly 500 and is used to drive the cutting assembly 500 to rotate. In this way, as grass continues to flow along the guide groove 410 into the cutting range S2 close to the cutting assembly 500 and is cut by the cutting assembly 500, the grass outside the main body 100 is trimmed, thereby avoiding blind spots and improving the mowing effect.

[0223] Optionally, the drive assembly 600 is connected to the cutting assembly 500 and the protection assembly 400, and is configured to drive the cutting assembly 500 to rotate. The drive assembly 600 also drives the protection assembly 400 to rotate. During rotation, the protection assembly 400 causes grass located outside the main body 100 to continuously flow along the guide slot 410 into the cutting range S2 proximate to the cutting assembly 500. As the grass continuously flows along the guide slot 410 into the cutting range S2 proximate to the cutting assembly 500 and is cut by the rotation of the cutting assembly 500, the grass located outside the main body 100 is trimmed, thereby avoiding blind spots and improving mowing efficiency.

[0224] See also Figure 22 The driving assembly 600 is disposed within the support body 211. The protection assembly 400 is connected to the bottom of the support body 211. The cutting assembly 500 is disposed at the bottom or inside of the protection assembly 400, so that the protection assembly 400 can be close to the ground to roll the grass into the guide groove 410 and into the cutting range S2 of the cutting assembly 500, so that the cutting assembly 500 can cut the grass quickly.

[0225] The cutting mechanism 200 further includes a detector (not shown) and a controller (not shown). At least a portion of the detector is located on the connecting assembly 800. The detector is used to detect the rotation angle of the cutting mechanism 200 relative to the self-moving device.

[0226] For example, the detector includes but is not limited to an encoder or an angle detector; or, the detector includes a Hall sensor and a magnet.

[0227] The controller is electrically connected to the detector and is configured to control the driving assembly 600 to stop driving when the detector detects that the rotation angle of the cutting mechanism 200 relative to the self-moving device is greater than a first preset angle.

[0228] If the cutting mechanism 200 rotates at a greater angle than a first preset angle relative to the self-moving device, it indicates that the cutting mechanism 200 has encountered an obstacle. If the protective assembly 400 and the cutting assembly 500 continue to rotate, the cutting mechanism 200 may be damaged. Based on this, the controller can control the driving assembly 600 to stop driving when the detector detects that the cutting mechanism 200 rotates at a greater angle than the first preset angle relative to the self-moving device, thereby keeping the protective assembly 400 and the cutting assembly 500 stationary. This prevents the protective assembly 400 and the cutting assembly 500 from rotating and colliding with obstacles, thereby damaging the cutting mechanism 200.

[0229] Furthermore, if the cutting mechanism 200 encounters an obstacle, the cutting mechanism 200 may be damaged if the self-moving device continues to move forward. The controller can also control the self-moving device to stop moving, so as to avoid the cutting mechanism 200 being damaged under the traction force of the forward movement and the resistance of the obstacle.

[0230] The present application does not specifically limit the first preset angle. The first preset angle includes, but is not limited to, between 1° and 10°. For example, the first preset angle is 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, 10°, etc.

[0231] The controller is further configured to control the driving assembly 600 to resume driving when the detector detects that the rotation angle of the cutting mechanism 200 relative to the self-moving device is reduced to less than or equal to a first preset angle.

[0232] If the rotation angle of the cutting mechanism 200 relative to the self-moving device is less than or equal to the first preset angle, it means that the cutting mechanism 200 has passed the obstacle. At this time, the driving component 600 can be controlled to resume driving, so that the protection component 400 and the cutting component 500 can resume working state to restore the edge cutting state.

[0233] The structure of the protection component 400 is described below with reference to the accompanying drawings.

[0234] Optional, see Figure 10 The introduction groove 410 includes an open end 411 and a closed end 412. The open end 411 is located at the outer periphery of the protection assembly 400. The closed end 412 is closer to the center of the protection assembly 400 relative to the open end 411. The groove width of the open end 411 is greater than the groove width of the closed end 412; alternatively, the groove width of the introduction groove 410 gradually decreases from the open end 411 to the closed end 412.

[0235] Specifically, a through portion is formed from the outer periphery of the protective assembly 400 toward the center of the protective assembly 400, extending in the height direction, thereby forming an introduction groove 410. In the process of forming the through portion, the groove width of the open end 411 of the introduction groove 410 is made larger than the groove width of the closed end 412 of the introduction groove 410. This allows more grass to enter the introduction groove 410 from the open end 411 and allows the grass entering the introduction groove 410 to be compressed at the closed end 412, thereby facilitating cutting by the rotation of the cutting assembly 500.

[0236] For further optional information, see Figure 10The width of the inlet groove 410 gradually decreases from the open end 411 to the closed end 412, so that the grass entering the inlet groove 410 from the open end 411 of the inlet groove 410 approaches the closed end 412 and moves away from the open end 411 as the width of the inlet groove 410 gradually decreases.

[0237] Optional, see Figure 10 The protection assembly 400 includes a central disk 420 and a plurality of extension units 430 surrounding the outer periphery of the central disk 420. The introduction slot 410 is formed between two adjacent extension units 430. The extension direction of each extension unit 430 intersects the radial direction of the central disk 420.

[0238] Among them, see Figure 10 The center of the central disk 420 is the center of the protective assembly 400. The central disk 420 is disk-shaped. Multiple extension units 430 are sequentially spaced and surround the outer periphery of the central disk 420. The introduction slots 410 are formed between two adjacent extension units 430. Thus, multiple introduction slots 410 are formed on the outer periphery of the central disk 420. Furthermore, the multiple introduction slots 410 can be evenly spaced and distributed on the outer periphery of the central disk 420.

[0239] In this embodiment, by setting the extension direction of each of the extension units 430 to intersect with the radial direction of the central disk 420, the extension unit 430 can not only roll the grass on the outside into and bind it within the cutting range S2 of the cutting assembly 500, but also block the grass within the cutting range S2 from going out along the inlet groove 410, thereby avoiding the centrifugal phenomenon that causes the grass in the inlet groove 410 to be thrown out, thereby improving the grass entry rate (grass entry rate in the inlet groove 410) and grass binding rate (the probability that the grass entering the inlet groove 410 will be bound and will not go out) during the rotation of the protection assembly 400.

[0240] In other embodiments, the extending direction of each of the extending units 430 is the same as the radial direction of the central disk 420 .

[0241] For further optional information, see Figure 10 The extension path of each extension unit 430 is an arcuate path. The arcuate extension path of the extension unit 430 is related to the rotation direction of the protection assembly 400. For example, when the rotation direction of the protection assembly 400 is counterclockwise, the extension path of each extension unit 430 is inclined to extend in an arcuate direction in the counterclockwise direction. For example, when the rotation direction of the protection assembly 400 is clockwise, the extension path of each extension unit 430 is inclined to extend in an arcuate direction in the clockwise direction.

[0242] In this embodiment, the extension direction of each of the extension units 430 is arranged to intersect with the radial direction of the central disk 420, and the extension trajectory of each extension unit 430 is biased toward the rotation direction of the protection component 400 and extends in an arc. In this way, the extension unit 430 can not only roll the grass on the outside into and bind it within the cutting range S2 of the cutting component 500, but also block the grass within the cutting range S2 from going out along the introduction groove 410, avoiding the centrifugal phenomenon that causes the grass in the introduction groove 410 to be thrown out, thereby improving the grass entry rate (grass entry rate in the introduction groove 410) and grass bundling rate (the probability that the grass entering the introduction groove 410 will be bound and will not go out) during the rotation of the protection component 400.

[0243] In other embodiments, the extension trajectory of each extension unit 430 is a straight line trajectory.

[0244] Optional, see Figure 10 Each of the extension units 430 includes a connecting end 431 and an extending end 432 disposed opposite to each other. The connecting end 431 and the extending end 432 are two ends of the extending direction. The connecting end 431 is connected to the center disk 420. Furthermore, the connecting end 431 and the center disk 420 are interconnected as a whole.

[0245] See also Figure 10 The width of the extension end 432 is smaller than the width of the connecting end 431. The extension end 432 has a smaller width. For example, the extension end 432 is pointed, so that the opening end 411 of the introduction groove 410 has a larger width. On the other hand, by setting the width of the extension end 432 smaller, the extension end 432 has a smaller surface area for pushing and blocking the surrounding grass, making it easier for the extension end 432 to be inserted into the gaps in the grass, thereby guiding the grass into the introduction groove 410.

[0246] In other embodiments, the width of the extension unit 430 in the extension direction thereof may be relatively uniform.

[0247] The tips of the extension ends 432 of the plurality of extension units 430 are all located on the circumscribed circle of the protection assembly 400 .

[0248] Optional, see Figure 10 , the surrounding centers of the multiple extension ends 432 coincide with the center of the central disk 420.

[0249] The center of the plurality of extension ends 432 is the center of the circumscribed circle of the tip of each extension end 432 of the extension unit 430. The center of the center disk 420 is the center of the disk of the center disk 420. The center of the protection assembly 400 is collinear with the center of the center disk 420.

[0250] Further, see Figure 10The rotating shaft 811 of the cutting assembly 500 can be located at the center of the cutting assembly 500, or can correspond to the center of the center disk 420, so that the cutting assembly 500 and the protective assembly 400 are coaxially arranged. When the cutting range S2 of the cutting assembly 500 is a circular area, the protection range S1 of the protective assembly 400 is also a circular area, and the cutting range S2 and the protection range S1 form two concentric circles. The radius of the circle ...

[0251] Optional, see Figure 10-12 The cutting assembly 500 includes at least one blade 510 and a blade shaft 520. The number of blades 510 is one or more. In this embodiment, the blades 510 can be arranged along the diameter of the cutting range S2. In other embodiments, the blades 510 can be arranged along the radius of the cutting range S2. In this embodiment, the number of blades 510 is one.

[0252] The blade 510 has an axial hole at its middle or end, and the blade shaft 520 passes through the axial hole.

[0253] Optionally, the blade shaft 520 is disposed through the blade 510. When the blade 510 is disposed along the diameter of the cutting range S2, the blade shaft 520 is disposed through the center (middle) of the blade 510. When the blade 510 is disposed along the radius of the cutting range S2, the blade shaft 520 is disposed through the end of the blade 510.

[0254] When the cutting assembly 500 rotates, the driving assembly 600 is connected to the blade shaft 520. The driving assembly 600 is used to drive the blade 510 to rotate via the blade shaft 520.

[0255] The blade shaft 520 is the aforementioned rotating shaft 811 of the cutting assembly 500. For example, the drive assembly 600 includes a motor and a motor output shaft. The blade shaft 520 is axially connected to the motor output shaft. Rotation of the motor output shaft drives the blade shaft 520 to rotate, thereby driving the blade 510 to rotate.

[0256] See also Figure 10-12 At least one side of the blade 510 has a cutting edge 530. Specifically, the blade 510 has a cutting edge 530 on the rotational side. In this embodiment, the blade 510 is arranged along the diameter of the cutting range S2. The blade 510 has two cutting edges 530. The two cutting edges 530 are respectively arranged on both sides of the blade axis 520 in the radial direction, and both cutting edges 530 face the rotational side of the blade 510.

[0257] For example, when the protection assembly 400 rotates counterclockwise and the cutting assembly 500 rotates clockwise, the blade 530 on the left side of the blade shaft 520 faces upward, while the blade 530 on the right side of the blade shaft 520 faces downward. Thus, as the cutting assembly 500 rotates clockwise, both blades 530 operate simultaneously, each blade 530 moving relative to the extension unit 430. This compresses the grass deep into the guide groove 410 while the blades 530 quickly cut the grass, improving mowing efficiency.

[0258] Optional, see Figure 10-12 The rotating front side of the blade 510 has a cutting edge 530. The side of the blade 510 having the cutting edge 530 faces the rotating front side of the protection assembly 400. That is, the rotating front side of the blade 510 faces the rotating front side of the protection assembly 400, so that the grass is pressed tightly against the deep part of the introduction groove 410 while the cutting edge 530 quickly cuts the grass, thereby improving mowing efficiency.

[0259] Optional, see Figure 10-12 The blade 530 is arc-shaped. The protection assembly 400 includes at least one arc-shaped extension unit 430. The arc-shaped cutting edge of the blade 530 is opposite to the arc-shaped opening of the extension unit 430.

[0260] For example, the protective assembly 400 rotates counterclockwise while the cutting assembly 500 rotates clockwise. The curved edge of the blade 530 on the left side of the blade shaft 520 faces upward, while the extension unit 430 on the left side of the center disk 420 extends in an arc-shaped manner in a counterclockwise direction, that is, extends downward in an arc-shaped manner from the center disk 420 to the outside. Therefore, the upward curved edge on the left side of the blade shaft 520 faces the downward curved extension unit 430, which compresses the grass deep into the guide groove 410 while allowing the blade 530 to quickly cut the grass, improving mowing efficiency. Furthermore, the blade 530 of the cutting assembly 500 cuts from the open end 411 toward the closed end 412 of the guide groove 410, preventing the grass within the guide groove 410 from escaping while also compressing and cutting the grass within the guide groove 410, thereby improving mowing efficiency.

[0261] The arc-shaped cutting edge of the blade 530 located on the right side of the blade shaft 520 faces downward, and the extension unit 430 on the right side of the center disk 420 extends in an arc shape in a counterclockwise direction, that is, it extends upward in an arc shape from the center disk 420 to the outside. The downward arc-shaped cutting edge on the right side of the blade shaft 520 is opposite to the arc-shaped extension unit 430, so that the grass is pressed against the deep part of the introduction groove 410, and the blade 530 cuts the grass quickly, thereby improving the mowing efficiency.

[0262] Optional, see Figure 10-12The cutting mechanism 200 further includes a connecting bearing 710. The connecting bearing 710 includes a first shaft ring 711 and a second shaft ring 712 that are sleeved together and rotatable relative to each other. The first shaft ring 711 is connected to the cutting assembly 500. Furthermore, the first shaft ring 711 is sleeved around the outer circumference of the blade shaft 520. The second shaft ring 712 is connected to the protective assembly 400. Furthermore, the outer circumference of the second shaft ring 712 is connected to the inner circumference of the protective assembly 400.

[0263] This embodiment provides a connecting bearing 710, which includes a first shaft ring 711 and a second shaft ring 712 that are sleeved on each other and can rotate relative to each other. The first shaft ring 711 is sleeved on the outer periphery of the blade shaft 520, and the outer peripheral surface of the second shaft ring 712 is connected to the inner peripheral surface of the protective component 400, wherein the first shaft ring 711 and the second shaft ring 712 can move independently of each other, so that the cutting component 500 and the protective component 400 can move independently of each other, which is beneficial for the cutting component 500 and the protective component 400 to rotate in opposite directions or for the cutting component 500 to rotate at a speed greater than the protective component 400.

[0264] See also Figure 7 、 Figure 13 and Figure 22 A cutting mechanism 200 is provided in a fourth embodiment of the present application. The cutting mechanism 200 includes a protection component 400, a cutting component 500, a first driving component 610 and a second driving component 620.

[0265] See also Figure 27 The protection assembly 400 includes a first central disk 421 and a plurality of first extension units 433 surrounding the outer periphery of the first central disk 421. At least a portion of the introduction slot 410 is formed between two adjacent first extension units 433.

[0266] Specifically, the protection assembly 400 includes a first cover 451 and a second cover 452 . The first cover 451 and the second cover 452 overlap with each other in the height direction and enclose to form the accommodating cavity 440 .

[0267] See also Figure 27 The first cover 451 includes a first central disk 421 and a plurality of first extension units 433 surrounding the outer periphery of the first central disk 421. A first sub-introduction groove 413 (a portion of the introduction groove 410) is formed between two adjacent first extension units 433.

[0268] See also Figure 27The second cover 452 includes a second central disk 422 and a plurality of second extension units 434 surrounding the outer periphery of the second central disk 422. A second sub-introduction slot 414 (a portion of the introduction slot 410) is formed between two adjacent second extension units 434. The first sub-introduction slot 413 is aligned with and connected to the second sub-introduction slot 414 in the height direction to form the introduction slot 410.

[0269] The accommodating cavity 440 is communicated with the introducing groove 410 .

[0270] See also Figure 10 、 Figure 12 and Figure 27 The introduction groove 410 extends from the outer periphery of the protection component 400 toward the center of the protection component 400 so that the grass on the peripheral side can be rolled into the introduction groove 410 during the rotation of the protection component 400.

[0271] See also Figure 10 、 Figure 12 and Figure 27 The cutting assembly 500 is located within the protection range S1 of the protective assembly 400. The protection range S1 of the protective assembly 400 refers to the height of the protective assembly 400. In this embodiment, the protective assembly 400 protects the cutting assembly 500, preventing it from being exposed.

[0272] See also Figure 10 、 Figure 12 and Figure 27 At least a portion of the introduction slot 410 is located within the cutting range S2 of the cutting assembly 500, so that the grass entering the introduction slot 410 can enter the cutting range S2 of the cutting assembly 500 and be cut by the cutting assembly 500. The cutting range S2 is the rotation range of the cutting assembly 500.

[0273] For details, please refer to Figure 10 、 Figure 12 and Figure 27 The cutting assembly 500 is disposed in the accommodating cavity 440, so that the protection assembly 400 protects the peripheral side of the cutting assembly 500. The protection assembly 400 can protect the cutting assembly 500 from both the horizontal direction and the vertical direction (height direction).

[0274] See also Figure 22The second driving component 620 is connected to the protection component 400, and the second driving component 620 is used to drive the protection component 400 to rotate. During the rotation process, the protection component 400 allows the grass located on the outside of the fuselage body 100 to continuously enter the cutting range S2 close to the cutting component 500 along the introduction groove 410.

[0275] See also Figure 22 The first drive assembly 610 is connected to the cutting assembly 500 and is used to drive the cutting assembly 500 to rotate. As grass continues to flow along the guide slot 410 into the cutting range S2 close to the cutting assembly 500, it is cut by the cutting assembly 500, thereby trimming the grass outside the main body 100, thereby avoiding blind spots and improving mowing efficiency.

[0276] Among them, the protection component 400 and the cutting component 500 are driven by different driving components 600 respectively, so that the rotation speed of the protection component 400 and the rotation speed of the cutting component 500 are independent of each other, so that the protection component 400 and the cutting component 500 can rotate relative to each other, which is more convenient for quick mowing and improves the mowing effect; it also makes the rotation direction of the protection component 400 and the rotation direction of the cutting component 500 independent of each other, so that the rotation directions of the protection component 400 and the cutting component 500 can be opposite, and the reverse rotation causes the blade 530 of the cutting component 500 to cut from the open end 411 of the introduction groove 410 toward the closed end 412, which can prevent the grass in the introduction groove 410 from flowing out of the introduction groove 410, and also press and cut the grass in the introduction groove 410, thereby improving the mowing efficiency.

[0277] The present application designs a cutting mechanism 200 including a protection component 400, a cutting component 500, a first drive component 610 and a second drive component 620. The protection component 400 includes a first center disk 421 and a plurality of first extension units 433 surrounding the outer periphery of the first center disk 421. At least part of the introduction groove 410 is formed between two adjacent first extension units 433. The introduction groove 410 extends from the outer periphery of the protection component 400 toward the center of the protection component 400, so that the grass on the peripheral side can be rolled into the introduction groove 410 during the rotation of the protection component 400. The cutting component 500 is arranged on the protection component 400. The first drive assembly 610 is connected to the cutting assembly 500 and is used to drive the cutting assembly 500 to rotate. The first drive assembly 610 is connected to the cutting assembly 500 and is used to drive the cutting assembly 500 to rotate. The first drive assembly 610 is used to drive the cutting assembly 500 to rotate. The first drive assembly 610 is connected to the cutting assembly 500 and is used to drive the cutting assembly 500 to rotate. The first drive assembly 610 is used to drive the cutting assembly 500 to rotate. The grass on the outside of the main body 100 is continuously cut along the cutting assembly 500 and enters the cutting range S2 close to the cutting assembly 500 along the guiding groove 410. The grass is cut by the cutting assembly 500, thereby trimming the grass on the outside of the main body 100, thereby avoiding blind spots and improving the mowing effect.

[0278] See also Figure 28 and Figure 29 The first center disk 421 has a first through hole 423. The first through hole 423 is located at the center of the first center disk 421 and extends in the height direction. The first through hole 423 is connected to the aforementioned accommodating cavity 440.

[0279] See also Figure 22 、 Figure 28 and Figure 29 The first driving assembly 610 includes a first motor 611. The output end of the first motor 611 is connected to the cutting assembly 500 via the first through hole 423.

[0280] Furthermore, the blade shaft 520 of the cutting assembly 500 corresponds to the center position of the first through hole 423. Furthermore, the output end of the first motor 611 is inserted into the inner cavity of the blade shaft 520 of the cutting assembly 500. The inner cavity of the blade shaft 520 is a non-circular hole, so that the blade shaft 520 and the output end of the first motor 611 rotate synchronously in the rotation direction. Consequently, the first motor 611 drives the cutting assembly 500 to rotate.

[0281] Optional, see Figure 2 、 Figure 28 and Figure 29 The cutting mechanism 200 further includes a transmission assembly 220. The transmission assembly 220 includes, but is not limited to, transmission structures such as gears and conveyor belts. Furthermore, the transmission assembly 220 can be a reduction transmission assembly, using a reducer structure for transmission, so that the rotational speed of the protection assembly 400 is lower than the rotational speed of the cutting assembly 500. Furthermore, the transmission assembly 220 can use a planetary gear reducer, a single-stage, two-stage, or even multi-stage planetary gear reducer. The input and output of the planetary gear reducer can be coaxial, that is, the protection assembly 400 and the cutting assembly 500 are coaxial.

[0282] The second driving assembly 620 is connected to the protection assembly 400 through the transmission assembly 220 to drive the protection assembly 400 to rotate.

[0283] Optional, see Figure 28 and Figure 29 , the transmission assembly 220 includes a first gear 221. The first gear 221 and the first center disk 421 are axially arranged. The first gear 221 has a second through hole 222. The second through hole 222 is connected to the first through hole 423. Specifically, the first gear 221 and the first center disk 421 are an integral structure, and the first gear 221 is connected to the first center disk 421 in the height direction. The second through hole 222 of the first gear 221 and the first through hole 423 of the first center disk 421 may have the same aperture and are connected in the height direction. The outer peripheral wall of the first gear 221 is provided with tooth patterns.

[0284] See also Figure 28 and Figure 29 , the second driving component 620 includes a second motor 621 and a second gear 622. The second gear 622 is meshed with the first gear 221. The second motor 621 is arranged adjacent to the first motor 611. Specifically, the outer peripheral wall of the second gear 622 is provided with teeth, and the second gear 622 is located on one side of the horizontal direction of the first gear 221. The teeth on the outer peripheral wall of the second gear 622 are meshed with the teeth on the outer peripheral wall of the first gear 221. The second motor 621 is located on one side of the horizontal direction of the first motor 611. The output shaft of the second motor 621 is coaxially connected to the center of the second gear 622, and the second motor 621 is used to drive the second gear 622 to rotate. The rotation of the second gear 622 drives the first gear 221 to rotate, that is, drives the protection component 400 to rotate.

[0285] Furthermore, the orthographic projection of the second gear 622 in the axial direction (height direction) is at least partially located within the area where the extension unit 430 is located. Thus, the second gear 622 and the extension unit 430 are arranged in a superimposed manner in the height direction, thereby not occupying a large space in the horizontal plane. The gear radius of the second gear 622 is smaller than the gear radius of the first gear 221. As a result, the second motor 621 transmits power through the smaller-radius second gear 622 to the larger-radius first gear 221, achieving a deceleration effect and thereby controlling the rotational speed of the protective assembly 400 to be relatively slow.

[0286] See also Figure 2 、 Figure 28 and Figure 29 The cutting mechanism 200 further includes a receiving shell 230 , a first bearing 235 and a second bearing 236 .

[0287] The housing 230 is the aforementioned bracket body 211. It houses the first drive assembly 610, the second drive assembly 620, and the transmission assembly 220. One end of the housing 230 is open in the height direction, while the other end is closed. The open end of the housing 230 faces the protective assembly 400 and is assembled and connected to the protective assembly 400.

[0288] See also Figure 28 and Figure 29 The main body of the housing shell 230 is a first cylinder 231 and a second cylinder 232 arranged in parallel in a horizontal plane. The first cylinder 231 is used to accommodate the first motor 611 of the first drive assembly 610. The second cylinder 232 is used to accommodate the second motor 621 of the second drive assembly 620. The first motor 611 and the second motor 621 are respectively installed into the first cylinder 231 and the second cylinder 232 from the top. The first motor 611 abuts and is fixed to the bottom of the first cylinder 231, and the second motor 621 abuts and is fixed to the bottom of the second cylinder 232. The tops of the first cylinder 231 and the second cylinder 232 are sealed by a cover.

[0289] The bottoms of the first cylinder 231 and the second cylinder 232 are both open, so that the output shaft of the first motor 611 extends through the opening and is fixed to the blade shaft 520 of the cutting assembly 500 , and the output shaft of the second motor 621 extends through the opening and is fixed to the center of the second gear 622 .

[0290] See also Figure 28 and Figure 29The end of the housing 230 facing the protective assembly 400 includes a first assembly ring 233 and a second assembly ring 234. The first assembly ring 233 is protruded from the end of the first cylinder 231 facing the protective assembly 400, and the second assembly ring 234 is protruded from the end of the entire housing 230 facing the protective assembly 400. The second assembly ring 234 is arranged around the outer circumference of the first assembly ring 233.

[0291] See also Figure 28 and Figure 29 , the first assembly ring 233 is arranged in the second through hole 222. The first gear 221 is arranged in the gap between the first assembly ring 233 and the second assembly ring 234. The inner wall of the first gear 221 (the hole wall of the second through hole 222) is spaced apart from the outer wall of the first assembly ring 233. The first bearing 235 is annular. The first bearing 235 is arranged in the gap between the first gear 221 and the first assembly ring 233. The outer wall of the first bearing 235 is connected to the inner wall of the second through hole 222. The inner wall of the first bearing 235 is connected to the outer wall of the first assembly ring 233. The first part of the first bearing 235 is fixedly connected to the first gear 221, and the second part of the first bearing 235 is fixedly connected to the first assembly ring 233. The first part and the second part of the first bearing 235 can rotate relative to each other, so that the first gear 221 is assembled and connected to the containing shell 230 and the first gear 221 can rotate relative to the containing shell 230.

[0292] See also Figure 28 and Figure 29 The second assembly ring 234 is located on the outer periphery of the first center disk 421. A portion of the second assembly ring 234 is located on the side of the second gear 622 away from the second motor 621, playing a sealing and shielding role.

[0293] See also Figure 28 and Figure 29 The outer wall of the second bearing 236 is connected to the inner wall of the second mounting ring 234. The inner wall of the second bearing 236 is connected to the outer wall of the first center disk 421. The first portion of the second bearing 236 is fixedly connected to the first center disk 421, and the second portion of the second bearing 236 is fixedly connected to the second mounting ring 234. The first and second portions of the second bearing 236 are able to rotate relative to each other, allowing the protective assembly 400 to be assembled and connected to the containment shell 230 while also being able to rotate relative to the containment shell 230.

[0294] Optional, see Figure 27-Figure 29The protective assembly 400 further includes the aforementioned second cover 452. The second cover 452 includes a second central disk 422 and a plurality of second extension units 434 surrounding the outer periphery of the second central disk 422. The second central disk 422 is spaced apart from and opposite to the first central disk 421. The first central disk 421 and the second central disk 422 are located on the upper and lower sides of the accommodating cavity 440, respectively.

[0295] Each of the second extending units 434 is opposite to one of the first extending units 433 and is spaced apart from each other.

[0296] See also Figure 27-Figure 29 The second portion of the cutting assembly 500 is located in the height gap between the first center disk 421 and the second center disk 422. The second portion of the cutting assembly 500 is located in the height gap between the first extension unit 433 and the second extension unit 434. The horizontal gap between two adjacent second extension units 434 forms at least a portion of the introduction slot 410 (the second sub-introduction slot 414).

[0297] Optional, see Figure 27-Figure 29 The second center disk 422 has a third through hole 424 arranged along the height direction. The cutting mechanism 200 further includes a connecting bearing 710.

[0298] See also Figure 11 and Figure 12 The cutting assembly 500 includes a blade 510 and a blade shaft 520. The blade shaft 520 extends through the end or middle of the blade 510. One end of the blade shaft 520 is coaxially connected to the output shaft of the first motor 611. The other end of the blade shaft 520 is connected to the inner wall of the third through hole 424 via the connecting bearing 710.

[0299] See also Figure 12 The connecting bearing 710 includes a first shaft ring 711 and a second shaft ring 712 that are sleeved together and rotatable relative to each other. The first shaft ring 711 is connected to the blade shaft 520 of the cutting assembly 500. Furthermore, the first shaft ring 711 is sleeved on the outer circumference of the blade shaft 520. The second shaft ring 712 is connected to the inner wall of the third through hole 424 of the protective assembly 400. Furthermore, the outer circumference of the second shaft ring 712 is connected to the inner wall of the third through hole 424 of the protective assembly 400.

[0300] This embodiment provides a connecting bearing 710, which includes a first shaft ring 711 and a second shaft ring 712 that are sleeved on each other and can rotate relative to each other. The first shaft ring 711 is sleeved on the outer periphery of the blade shaft 520, and the outer peripheral surface of the second shaft ring 712 is connected to the inner wall of the third through hole 424 of the protective component 400, wherein the first shaft ring 711 and the second shaft ring 712 can move independently of each other, so that the cutting component 500 and the protective component 400 can move independently of each other, which is beneficial for the cutting component 500 and the protective component 400 to rotate in opposite directions or for the cutting component 500 to rotate at a speed greater than the protective component 400.

[0301] The connecting bearing 710 , the second cover 452 and the blade shaft 520 can be fixedly connected in the height direction by screws at the bottom of the second cover 452 .

[0302] Optionally, the transmission assembly 220 further includes a third gear (not shown). The third gear is meshed and connected between the second gear 622 and the first gear 221. The rotation direction of the protection assembly 400 is the same as that of the cutting assembly 500.

[0303] In other embodiments, the transmission assembly 220 does not include the third gear, the second gear 622 is directly meshed with the first gear 221 , and the rotation direction of the protection assembly 400 is opposite to the rotation direction of the cutting assembly 500 .

[0304] See also Figure 30 , a cutting mechanism 200 is provided in embodiment five of the present application, and the cutting mechanism 200 includes a protection component 400, a cutting component 500 and a driving component 600.

[0305] See also Figure 27 The protective assembly 400 includes a first central disk 421 and a plurality of first extension units 433 surrounding the outer periphery of the first central disk 421. Adjacent first extension units 433 define at least a portion of an introduction slot 410. The introduction slot 410 extends from the outer periphery of the protective assembly 400 toward the center of the protective assembly 400.

[0306] See also Figure 10 The cutting assembly 500 is disposed within the protection range S1 of the protection assembly 400 . A portion of the introduction groove 410 is located within the cutting range S2 of the cutting assembly 500 .

[0307] For details, please refer to Figure 27 and Figure 12 The protection assembly 400 includes a first cover 451 and a second cover 452 . The first cover 451 and the second cover 452 overlap with each other in the height direction and enclose to form a receiving cavity 440 .

[0308] See also Figure 27 and Figure 12 The first cover 451 includes a first central disk 421 and a plurality of first extension units 433 surrounding the outer periphery of the first central disk 421. A first sub-introduction groove 413 (a portion of the introduction groove 410) is formed between two adjacent first extension units 433.

[0309] See also Figure 27 and Figure 12 The second cover 452 includes a second central disk 422 and a plurality of second extension units 434 surrounding the outer periphery of the second central disk 422. A second sub-introduction slot 414 (a portion of the introduction slot 410) is formed between two adjacent second extension units 434. The first sub-introduction slot 413 is aligned with and connected to the second sub-introduction slot 414 in the height direction to form the introduction slot 410.

[0310] See also Figure 27 and Figure 12 , the accommodating cavity 440 is communicated with the introducing groove 410 .

[0311] The introduction groove 410 extends from the outer periphery of the protection component 400 toward the center of the protection component 400 so that grass on the peripheral side can be rolled into the introduction groove 410 during the rotation of the protection component 400.

[0312] See also Figure 10 The cutting assembly 500 is located within the protection range S1 of the protective assembly 400. The protection range S1 of the protective assembly 400 refers to the height of the protective assembly 400. In this embodiment, the protective assembly 400 protects the cutting assembly 500, preventing it from being exposed.

[0313] See also Figure 10 At least a portion of the introduction slot 410 is located within the cutting range S2 of the cutting assembly 500, so that the grass entering the introduction slot 410 can enter the cutting range S2 of the cutting assembly 500 and be cut by the cutting assembly 500. The cutting range S2 is the rotation range of the cutting assembly 500.

[0314] For details, please refer to Figure 12 The cutting assembly 500 is disposed in the accommodating cavity 440, so that the protection assembly 400 protects the peripheral side of the cutting assembly 500. The protection assembly 400 can protect the cutting assembly 500 from both the horizontal direction and the vertical direction (height direction).

[0315] See also Figure 31-Figure 35 The drive assembly 600 connects the protection assembly 400 and the cutting assembly 500. The drive assembly 600 is used to drive the protection assembly 400 and the cutting assembly 500 to rotate. During the rotation of the protection assembly 400, the grass located outside the main body 100 continuously flows along the guide groove 410 into the cutting range S2 close to the cutting assembly 500. As the grass continuously flows along the guide groove 410 into the cutting range S2 close to the cutting assembly 500 and is cut by the rotation of the cutting assembly 500, the grass located outside the main body 100 is trimmed, thereby avoiding blind spots and improving the mowing effect.

[0316] The protection assembly 400 and the cutting assembly 500 are driven by the same drive assembly 600, which can reduce the number of drive assemblies 600 and the space occupied by the drive assemblies 600, simplify the structure, save costs and reduce weight.

[0317] The present application designs a cutting mechanism 200 including a protection assembly 400, a cutting assembly 500, and a driving assembly 600. The protection assembly 400 includes a first central disk 421 and a plurality of first extension units 433 surrounding the outer periphery of the first central disk 421. At least part of the introduction groove 410 is formed between two adjacent first extension units 433. The introduction groove 410 extends from the outer periphery of the protection assembly 400 toward the center of the protection assembly 400, so that the grass on the peripheral side can be rolled into the introduction groove 410 during the rotation of the protection assembly 400. The cutting assembly 500 is provided on the protection assembly 400. 00 within the protection range S1, preventing the cutting assembly 500 from being exposed. At least a portion of the guide slot 410 is located within the cutting range S2 of the cutting assembly 500, so that grass entering the guide slot 410 can enter the cutting range S2 of the cutting assembly 500 and be cut by the cutting assembly 500. The driving assembly 600 is connected to the protection assembly 400 and is used to drive the protection assembly 400 to rotate. During the rotation of the protection assembly 400, the protection assembly 400 causes grass located outside the main body 100 to continuously follow the guide slot 410 into the cutting range S2 close to the cutting assembly 500. The driving assembly 600 is also connected to the cutting assembly 500 and is used to drive the cutting assembly 500 to rotate. As the grass continuously follows the guide slot 410 into the cutting range S2 close to the cutting assembly 500, it is cut by the cutting assembly 500, thereby trimming the grass located outside the main body 100, thereby avoiding blind spots and improving the mowing effect.

[0318] See also Figure 31-Figure 35 The first center disk 421 has a first through hole 423. The first through hole 423 is located at the center of the first center disk 421 and extends in the height direction. The first through hole 423 is connected to the aforementioned accommodating cavity 440.

[0319] The driving assembly 600 includes a first motor 611 . An output end of the first motor 611 is connected to the cutting assembly 500 via the first through hole 423 .

[0320] See also Figure 27 、 Figure 31-Figure 35 Furthermore, the blade shaft 520 of the cutting assembly 500 corresponds to the center position of the first through hole 423. Furthermore, the output end of the first motor 611 is inserted into the inner cavity of the blade shaft 520 of the cutting assembly 500. The inner cavity of the blade shaft 520 is a non-circular hole, so that the blade shaft 520 and the output end of the first motor 611 rotate synchronously in the rotation direction. Consequently, the first motor 611 drives the cutting assembly 500 to rotate.

[0321] Optionally, the cutting mechanism 200 further includes a transmission assembly 220. The transmission assembly 220 includes, but is not limited to, transmission structures such as gears and conveyor belts. Furthermore, the transmission assembly 220 can be a reduction transmission assembly, employing a reducer structure for transmission, such that the rotational speed of the protection assembly 400 is lower than the rotational speed of the cutting assembly 500. Furthermore, the transmission assembly 220 can employ a planetary gear reducer, either a single-stage, two-stage, or even multi-stage planetary gear reducer. The input and output of the planetary gear reducer can be coaxial, ie, the protection assembly 400 and the cutting assembly 500 are coaxial.

[0322] The second driving assembly 620 is connected to the protection assembly 400 through the transmission assembly 220 to drive the protection assembly 400 to rotate.

[0323] Optional, see Figure 31-Figure 35 The inner wall of the first through hole 423 is provided with a ring gear 425. The transmission assembly 220 further includes a drive gear 224 and at least one first transmission gear 225. The drive gear 224 is located within the first through hole 423. The drive gear 224 is coaxially connected to the output shaft of the first motor 611. The first transmission gear 225 is located within the first through hole 423. The first transmission gear 225 meshes with the ring gear 425. The first transmission gear 225 meshes with the drive teeth.

[0324] The first motor 611 is used to drive the driving gear 224 to rotate, thereby driving the first transmission gear 225 to rotate, and finally driving the protection assembly 400 to rotate.

[0325] The number of the first transmission gears 225 is odd, so that the protection assembly 400 and the cutting assembly 500 rotate in the same direction. The number of the first transmission gears 225 is even, so that the protection assembly 400 and the cutting assembly 500 rotate in opposite directions.

[0326] Since the radius of the gear ring 425 on the inner wall of the first through hole 423 is relatively large, the rotation speed of the protection assembly 400 is lower than the rotation speed of the cutting assembly 500 .

[0327] Optional, see Figure 2 and Figure 31 The cutting mechanism 200 further includes a housing 230 and a first bearing 235. The housing 230 is used to house the first motor 611.

[0328] The housing 230 is the aforementioned support body 211. It houses the drive assembly 600 and the transmission assembly 220. One end of the housing 230 is open, and the other end is closed. The open end of the housing 230 faces the protective assembly 400 and is assembled and connected thereto.

[0329] See also Figure 31 The main body of the housing 230 is a first cylindrical body 231 arranged in parallel along a horizontal plane. The first cylindrical body 231 is used to accommodate the first motor 611 of the drive assembly 600. The first motor 611 is installed into the first cylindrical body 231 from the top, abutting and fixed to the bottom of the first cylindrical body 231, and the top of the first cylindrical body 231 is sealed by a cover.

[0330] The bottom of the first cylinder 231 has an opening, so that the output shaft of the first motor 611 can extend through the opening and be fixed to the blade shaft 520 of the cutting assembly 500 .

[0331] See also Figure 31 The housing 230 includes a first mounting ring 233. The first mounting ring 233 is protruding from one end of the first cylinder 231 facing the protection assembly 400 and is located on the outer periphery of the first center disk 421. The outer wall of the first bearing 235 is connected to the inner wall of the first mounting ring 233. The inner wall of the first bearing 235 is connected to the outer wall of the first center disk 421.

[0332] The first bearing 235 is annular. The first bearing 235 is disposed in the gap between the outer periphery of the first center disk 421 and the inner periphery of the first assembly ring 233. The outer wall of the first bearing 235 is connected to the inner periphery of the first assembly ring 233. The inner wall of the first bearing 235 is connected to the outer periphery of the first center disk 421. The first portion of the first bearing 235 is fixedly connected to the first center disk 421, and the second portion of the first bearing 235 is fixedly connected to the first assembly ring 233. The first and second portions of the first bearing 235 are capable of relative rotation, allowing the first center disk 421 to be assembled and connected to the containment shell 230 while the protective assembly 400 is capable of rotation relative to the containment shell 230.

[0333] Optional, see Figure 27 The protective assembly 400 further includes the aforementioned second cover 452. The second cover 452 includes a second central disk 422 and a plurality of second extension units 434 surrounding the outer periphery of the second central disk 422. The second central disk 422 is spaced apart from and opposite to the first central disk 421. The first central disk 421 and the second central disk 422 are located on the upper and lower sides of the accommodating cavity 440, respectively.

[0334] Each of the second extending units 434 is opposite to one of the first extending units 433 and is spaced apart from each other.

[0335] A portion of the cutting assembly 500 is located in the height gap between the first center disk 421 and the second center disk 422. A second portion of the cutting assembly 500 is located in the height gap between the first extension unit 433 and the second extension unit 434. The gap between two adjacent second extension units 434 forms at least a portion of the introduction slot 410 (the second sub-introduction slot 414).

[0336] Optional, see Figure 12 、 Figure 27 The second center disk 422 has a third through hole 424. The cutting mechanism 200 further includes a connecting bearing 710.

[0337] See also Figures 10 to 12 The cutting assembly 500 includes a blade 510 and a blade shaft 520. The blade shaft 520 is connected to the end or the middle of the blade 510. One end of the blade shaft 520 is coaxially connected to the output shaft of the drive motor. The other end of the blade shaft 520 is connected to the inner wall of the third through hole 424 via the connecting bearing 710.

[0338] See also Figures 10 to 12 The connecting bearing 710 includes a first shaft ring 711 and a second shaft ring 712 that are sleeved together and rotatable relative to each other. The first shaft ring 711 is connected to the blade shaft 520 of the cutting assembly 500. Furthermore, the first shaft ring 711 is sleeved on the outer circumference of the blade shaft 520. The second shaft ring 712 is connected to the inner wall of the third through hole 424 of the protective assembly 400. Furthermore, the outer circumference of the second shaft ring 712 is connected to the inner wall of the third through hole 424 of the protective assembly 400.

[0339] This embodiment provides a connecting bearing 710, which includes a first shaft ring 711 and a second shaft ring 712 that are sleeved on each other and can rotate relative to each other. The first shaft ring 711 is sleeved on the outer periphery of the blade shaft 520, and the outer peripheral surface of the second shaft ring 712 is connected to the inner wall of the third through hole 424 of the protective component 400, wherein the first shaft ring 711 and the second shaft ring 712 can move independently of each other, so that the cutting component 500 and the protective component 400 can move independently of each other, which is beneficial for the cutting component 500 and the protective component 400 to rotate in opposite directions or for the cutting component 500 to rotate at a speed greater than the protective component 400.

[0340] The connecting bearing 710 , the second cover 452 and the blade shaft 520 can be fixedly connected in the height direction by screws at the bottom of the second cover 452 .

[0341] Optionally, the rotational speed of the protection assembly 400 is lower than that of the cutting assembly 500. That is, the rotational speed of the cutting assembly 500 is greater than that of the protection assembly 400. In this manner, the cutting assembly 500 can rotate relative to the protection assembly 400 at a higher relative speed, allowing the grass trapped within the guide groove 410 of the protection assembly 400 to be cut by the cutting assembly 500 at a higher relative speed, thereby improving mowing efficiency.

[0342] Optionally, the rotation direction of the protection assembly 400 is opposite to that of the cutting assembly 500. That is, as the grass in the introduction groove 410 rotates toward the cutting side of the cutting assembly 500 as the protection assembly 400 rotates, the grass in the introduction groove 410 is subjected to the rotational driving force of the protection assembly 400 on one side and the rotational cutting force of the cutting assembly 500 on the other side. The grass in the introduction groove 410 is clamped on both sides by the protection assembly 400 and the cutting assembly 500 and is quickly cut by the cutting assembly 500, thereby improving the cutting efficiency.

[0343] Optionally, the transmission assembly 220 further includes a second transmission gear (not shown). The second transmission gear is meshedly connected between the first transmission gear 225 and the ring gear 425. The rotation direction of the protection assembly 400 is the same as that of the cutting assembly 500. Since the rotation speed of the cutting assembly 500 is greater than that of the protection assembly 400, the cutting assembly 500 can rotate at a greater relative speed relative to the protection assembly 400. This allows the grass trapped within the guide groove 410 of the protection assembly 400 to be cut by the cutting assembly 500 at a greater relative speed, thereby improving mowing efficiency.

[0344] Optional, see Figures 10 to 12 、 Figure 27, the extension track of each first extension unit 433 is an arc track. Further, the second extension unit 434 and the first extension unit 433 are mirror images.

[0345] The arc-shaped extension path of the first extension unit 433 is related to the rotation direction of the protection assembly 400. For example, when the rotation direction of the protection assembly 400 is counterclockwise, the extension path of each first extension unit 433 is inclined to extend in the counterclockwise direction in an arc. For example, when the rotation direction of the protection assembly 400 is clockwise, the extension path of each first extension unit 433 is inclined to extend in the clockwise direction in an arc.

[0346] In this embodiment, the extension direction of each of the first extension units 433 is arranged to intersect with the radial direction of the first center disk 421, and the extension trajectory of each of the first extension units 433 is biased toward the rotation direction of the protection component 400 and extends in an arc. In this way, the first extension unit 433 can not only roll the grass on the outside into and bind it within the cutting range S2 of the cutting component 500, but also block the grass within the cutting range S2 from going out along the inlet groove 410, avoiding the centrifugal phenomenon that causes the grass in the inlet groove 410 to be thrown out, thereby improving the grass entry rate (grass entry rate in the inlet groove 410) and grass bundling rate (the probability that the grass entering the inlet groove 410 will be bound and will not go out) during the rotation of the protection component 400.

[0347] In other embodiments, the extension trajectory of each first extension unit 433 is a straight line trajectory.

[0348] Optional, see Figures 10 to 12 Each first extension unit 433 includes a connecting end 431 and an extending end 432 disposed opposite to each other. The connecting end 431 and the extending end 432 are two ends of the first extension unit 433. The connecting end 431 is connected to the first center disk 421. Furthermore, the connecting end 431 and the first center disk 421 are interconnected as a whole.

[0349] The width of the extension end 432 is smaller than the width of the connecting end 431. The extension end 432 has a smaller width, for example, a pointed end, so that the opening end 411 of the introduction groove 410 has a larger width. On the other hand, by setting the width of the extension end 432 smaller, the extension end 432 has a smaller surface area for pushing and blocking the surrounding grass, making it easier for the extension end 432 to be inserted into the gaps in the grass, thereby guiding the grass into the introduction groove 410.

[0350] In other embodiments, the width of the first extension unit 433 in the extension direction thereof may be relatively uniform.

[0351] The tips of the extension ends 432 of the plurality of first extension units 433 are all located on the circumscribed circle of the protection assembly 400 .

[0352] Optional, see Figures 10 to 12 , the surrounding centers of the multiple extension ends 432 coincide with the center of the first center disk 421.

[0353] The center of the plurality of extension ends 432 is the center of the circumscribed circle of the tip of each first extension unit 433. The center of the first center disk 421 is the center of the disk of the first center disk 421. The center of the protective assembly 400 is collinear with the center of the first center disk 421.

[0354] Further, see Figures 10 to 12 , the rotating shaft 811 of the cutting assembly 500 (see Figure 26 ) can be located at the center of the cutting assembly 500, or can correspond to the center of the first center disk 421, so that the cutting assembly 500 and the protection assembly 400 are coaxially arranged. When the cutting range S2 of the cutting assembly 500 is a circular area, the protection range S1 of the protection assembly 400 is also a circular area, and the cutting range S2 and the protection range S1 form two concentric circles. The radius of the circle ...

[0355] Optional, see Figures 10 to 12 The cutting assembly 500 includes at least one blade 510 and a blade shaft 520. The number of blades 510 is one or more. In this embodiment, the blades 510 can be arranged along the diameter of the cutting range S2. In other embodiments, the blades 510 can be arranged along the radius of the cutting range S2. In this embodiment, the number of blades 510 is one.

[0356] The blade 510 has an axial hole at its middle or end, and the blade shaft 520 passes through the axial hole.

[0357] Optionally, the blade shaft 520 is disposed through the blade 510. When the blade 510 is disposed along the diameter of the cutting range S2, the blade shaft 520 is disposed through the center (middle) of the blade 510. When the blade 510 is disposed along the radius of the cutting range S2, the blade shaft 520 is disposed through the end of the blade 510.

[0358] When the cutting assembly 500 rotates, the driving assembly 600 is connected to the blade shaft 520. The driving assembly 600 is used to drive the blade 510 to rotate via the blade shaft 520.

[0359] The blade shaft 520 is the aforementioned rotating shaft 811 of the cutting assembly 500. For example, the drive assembly 600 includes a motor and a motor output shaft. The blade shaft 520 is axially connected to the motor output shaft. Rotation of the motor output shaft drives the blade shaft 520 to rotate, thereby driving the blade 510 to rotate.

[0360] See also Figures 10 to 12 At least one side of the blade 510 has a cutting edge 530. Specifically, the blade 510 has a cutting edge 530 on the rotational side. In this embodiment, the blade 510 is arranged along the diameter of the cutting range S2. The blade 510 has two cutting edges 530. The two cutting edges 530 are respectively arranged on both sides of the blade axis 520 in the radial direction, and both cutting edges 530 face the rotational side of the blade 510.

[0361] For example, when the protection assembly 400 rotates counterclockwise and the cutting assembly 500 rotates clockwise, the blade 530 on the left side of the blade shaft 520 faces upward, while the blade 530 on the right side of the blade shaft 520 faces downward. Thus, as the cutting assembly 500 rotates clockwise, both blades 530 operate simultaneously, each blade 530 moving relative to the first extension unit 433. This allows the grass to be pressed against the deep portion of the guide groove 410 while the blades 530 cut the grass quickly, improving mowing efficiency.

[0362] Optional, see Figures 10 to 12 The rotating front side of the blade 510 has a cutting edge 530. The side of the blade 510 having the cutting edge 530 faces the rotating front side of the protection assembly 400. That is, the rotating front side of the blade 510 faces the rotating front side of the protection assembly 400, so that the grass is pressed tightly against the deep part of the introduction groove 410 while the cutting edge 530 quickly cuts the grass, thereby improving mowing efficiency.

[0363] Optional, see Figures 10 to 12 The blade 530 is arc-shaped. The protection assembly 400 includes at least one arc-shaped first extension unit 433 (see Figure 27 The arc-shaped edge of the blade 530 is opposite to the arc-shaped opening of the first extension unit 433 .

[0364] For example, the protective assembly 400 rotates counterclockwise while the cutting assembly 500 rotates clockwise. The curved edge of the blade 530 on the left side of the blade shaft 520 faces upward, while the first extension unit 433 on the left side of the first center disk 421 extends in an arc-shaped manner in a counterclockwise direction, that is, extends downward in an arc-shaped manner from the first center disk 421 to the outside. Therefore, the upward curved edge on the left side of the blade shaft 520 faces the downward curved first extension unit 433, which compresses the grass deep into the introduction groove 410 while allowing the blade 530 to cut the grass quickly, improving mowing efficiency. Furthermore, the blade 530 of the cutting assembly 500 cuts from the open end 411 toward the closed end 412 of the introduction groove 410, preventing grass from escaping the introduction groove 410 while also compressing and cutting the grass within the introduction groove 410, thereby improving mowing efficiency.

[0365] The arc-shaped cutting edge of the blade 530 located on the right side of the blade shaft 520 faces downward, and the first extension unit 433 on the right side of the first center disk 421 extends in an arc shape in a counterclockwise direction, that is, it extends upward in an arc shape from the first center disk 421 to the outside. The downward arc-shaped cutting edge on the right side of the blade shaft 520 is opposite to the arc-shaped first extension unit 433, so that the grass is pressed against the deep part of the inlet groove 410, and the blade 530 cuts the grass quickly, thereby improving the mowing efficiency.

[0366] The process of mowing along the edge of the grass using the cutting device 1000 provided in this application is as follows: (1) Please refer to Figure 6 , there is a wall on the right. When the cutting mechanism 200 moves forward along the wall M2, the protection component 400 and the cutting component 500 rotate in opposite directions. In this embodiment, the protection component 400 rotates counterclockwise and the cutting component 500 rotates clockwise. At this time, the grass M1 along the wall M2 will enter the guide groove 410 set by the protection component 400 under the drive of the counterclockwise rotating protection component 400, and then the grass M1 enters the cutting range of the cutting component 500 and is cut by the cutting component 500. (2) When the cutting mechanism 200 encounters an obstacle, it is transmitted to the rotating shaft, which in turn drives the rotating shaft connector to compress the torsion spring. At this time, the cutting device 1000 can be provided with an appropriate sensor to detect the obstacle, and then control the machine to slow down or stop; when the cutting device 1000 is away from the obstacle, the torsion spring is released and the cutting mechanism 200 returns to its normal position.

[0367] The cutting device 1000 provided herein can cut grass right along the edge while ensuring sufficient safety, achieving a fully automatic right-edge cutting solution. A protective assembly 400 is provided that protects the blades and can also roll up the grass. The blades are positioned in a safe position while simultaneously guiding the grass to a position where the blades can cut, achieving cutting.

[0368] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A cutting mechanism, characterized in that: include: A protection component, the protection component having at least one introduction groove, the introduction groove extending from the outer periphery of the protection component toward the center of the protection component; a cutting assembly, the cutting assembly being disposed within a protection range of the protection assembly, and the introduction groove being at least partially located within the cutting range of the cutting assembly; and A driving assembly, wherein the driving assembly is connected to the protection assembly and is used to drive the protection assembly to rotate; the driving assembly is also connected to the cutting assembly and is also used to drive the cutting assembly to rotate.

2. The cutting mechanism according to claim 1, wherein: The driving assembly includes a first driving assembly, the first driving assembly is connected to the cutting assembly, and the first driving assembly is used to drive the cutting assembly to rotate.

3. The cutting mechanism according to claim 2, wherein: The first driving assembly is connected to the protection assembly, and the first driving assembly is used to drive the protection assembly to rotate.

4. The cutting mechanism according to claim 2, wherein: The driving assembly further includes a second driving assembly, which is connected to the protection assembly and is used to drive the protection assembly to rotate.

5. The cutting mechanism according to claim 3 or 4, characterized in that: The rotation direction of the protection component is opposite to the rotation direction of the cutting component; or, the rotation direction of the protection component is the same as the rotation direction of the cutting component.

6. The cutting mechanism according to claim 5, wherein: The rotation speed of the protection component is lower than the rotation speed of the cutting component.

7. The cutting mechanism according to claim 6, wherein: The rotation speed of the cutting assembly is greater than or equal to 10 times the rotation speed of the protection assembly.

8. The cutting mechanism according to claim 6, wherein: The rotation speed of the protection component is less than or equal to 200 revolutions per minute.

9. The cutting mechanism according to claim 3 or 4, characterized in that: The rotation axis of the protection assembly is the same as the rotation axis of the cutting assembly.

10. The cutting mechanism according to claim 1, wherein: The introduction groove includes an open end and a closed end, the open end is located at the outer peripheral edge of the protection component, the closed end is closer to the center of the protection component relative to the open end, and the groove width of the open end is greater than the groove width of the closed end; or, the groove width of the introduction groove gradually decreases from the open end to the closed end.

11. The cutting mechanism according to claim 1, wherein: The protection component includes a central disk and a plurality of extension units surrounding the outer circumference of the central disk, wherein the introduction groove is formed between two adjacent extension units; the extension direction of each extension unit intersects with the radial direction of the central disk.

12. The cutting mechanism according to claim 11, wherein: The extension trajectory of each extension unit is an arc trajectory; Each of the extension units includes a connecting end and an extending end that are arranged opposite to each other. The connecting end is connected to the central disk, and the width of the extending end is smaller than the width of the connecting end.

13. The cutting mechanism according to claim 12, wherein: The circumferential centers of the plurality of extension ends coincide with the center of the central disk.

14. The cutting mechanism according to claim 2, wherein: The cutting assembly is coaxially arranged with the first driving assembly.

15. The cutting mechanism according to claim 1, wherein: The cutting assembly includes at least one blade and a blade shaft, wherein at least one side of the blade has a cutting edge, the middle or end of the blade has an axis hole, and the blade shaft passes through the axis hole; When the cutting assembly rotates, the driving assembly is connected to the blade shaft, and the driving assembly is used to drive the blade to rotate via the blade shaft.

16. The cutting mechanism according to claim 15, wherein: The rotation front side of the blade is provided with a cutting edge; and the side of the blade provided with the cutting edge is opposite to the rotation front side of the protection component.

17. The cutting mechanism according to claim 16, wherein: The blade is arc-shaped, and the protection component includes at least one arc-shaped extension unit. The arc-shaped cutting edge of the blade is opposite to the arc-shaped opening of the extension unit.

18. The cutting mechanism according to claim 1, wherein: The cutting mechanism further includes a connecting bearing, which includes a first shaft ring and a second shaft ring that can rotate relative to each other. The first shaft ring is connected to the cutting component, and the second shaft ring is connected to the protection component.

19. A cutting mechanism, characterized in that: include: The protection assembly includes a central disk and a plurality of extension units surrounding the outer periphery of the central disk, wherein an introduction groove is formed between two adjacent extension units; An extending direction of each of the extending units intersects with a radial direction of the central disk; a cutting assembly, the cutting assembly being disposed within the protection range of the protection assembly, the introduction groove being at least partially located within the cutting range of the cutting assembly; and A driving assembly is connected to the cutting assembly and is used to drive the cutting assembly to rotate.

20. The cutting mechanism according to claim 19, wherein: The protection range of the protection component is the range formed by the rotation of the protection component.

21. The cutting mechanism according to claim 19, wherein: The protection component has a receiving cavity, the receiving cavity is communicated with the introduction groove, and the cutting component is arranged in the receiving cavity.

22. The cutting mechanism according to claim 21, wherein: The protection assembly includes a first cover body and a second cover body, and the first cover body and the second cover body overlap and enclose to form a receiving cavity. The protection assembly can protect the cutting assembly from both horizontal and vertical directions.

23. The cutting mechanism according to claim 22, wherein: The first cover body and the second cover body are detachably connected.

24. The cutting mechanism according to claim 22, wherein: Both the first cover body and the second cover body include the center disk and a plurality of extension units surrounding the outer periphery of the center disk; each of the extension units includes a first extension portion close to the center disk and used to enclose the accommodating cavity and a second extension portion away from the center disk and located on the outer periphery of the accommodating cavity, and the second extension portion of the first cover body and the second extension portion of the second cover body are both connected by a detachable fixing member.

25. The cutting mechanism according to claim 19, wherein: The driving assembly includes a first driving assembly, the first driving assembly is connected to the protection assembly and the cutting assembly, and the first driving assembly is used to drive the protection assembly and the cutting assembly to rotate; or, The driving assembly includes a first driving assembly and a second driving assembly, the first driving assembly is connected to the protection assembly, the second driving assembly is connected to the cutting assembly, the first driving assembly is used to drive the protection assembly to rotate, and the second driving assembly is used to drive the cutting assembly to rotate.

26. A cutting mechanism, characterized in that: The cutting mechanism is applied to a self-propelled device, comprising: The protection component has at least one introduction groove, the introduction groove extending from the outer periphery of the protection component toward the center of the protection component; a cutting assembly, the cutting assembly being disposed within a protection range of the protection assembly, the introduction groove being at least partially located within the cutting range of the cutting assembly; A portion of the introduction slot is located within the cutting range of the cutting assembly; at least a portion of the introduction slot on the protection assembly is located outside the orthographic projection area of the self-moving device; A connecting assembly is used to connect the cutting mechanism and the self-moving device. The connecting assembly is used to drive the cutting assembly to rotate to avoid obstacles when the self-moving device encounters obstacles.

27. The cutting mechanism according to claim 26, wherein: The cutting mechanism includes a connecting bracket connected to the cutting assembly or the protection assembly; The connecting assembly includes a rotating shaft assembly and an elastic reset assembly. The rotating shaft assembly is connected to the connecting bracket, and the connecting bracket can be rotated by the rotating shaft assembly. The elastic reset assembly is provided on the self-moving device. The elastic reset assembly can apply elastic force to the connecting bracket or the rotating shaft assembly to rotate the connecting bracket to the reset position.

28. The cutting mechanism according to claim 27, wherein: The elastic reset assembly includes a buffer seat and a rotating shaft elastic member. The buffer seat is located on the connecting bracket and is sleeved on the periphery of the rotating shaft assembly. One end of the rotating shaft elastic member elastically abuts or elastically connects to the rotating shaft assembly. At least one end of the rotating shaft elastic member elastically abuts or elastically connects to the buffer seat, and the buffer seat is connected to the self-moving device.

29. The cutting mechanism according to claim 28, wherein: The buffer seat has a hole, and a first abutting portion is protruded on the hole wall of the hole; The rotating shaft assembly includes a rotating shaft and a rotating shaft connecting member, the rotating shaft is fixedly connected to the connecting bracket, the rotating shaft connecting member is fixed on the rotating shaft, and the rotating shaft connecting member is located in the center hole of the buffer seat, the rotating shaft elastic member is sleeved on the rotating shaft connecting member, and one end of the rotating shaft elastic member elastically abuts or elastically connects to the rotating shaft connecting member, and at least one other end of the rotating shaft elastic member elastically abuts or elastically connects to the first abutting portion.

30. The cutting mechanism according to claim 29, wherein: The rotating shaft connecting member includes a main body and a hook portion protruding from the main body, and the main body is sleeved on the rotating shaft; The rotating shaft elastic member is a torsion spring, and the rotating shaft elastic member includes a first torsion arm, a first spiral arm, an intermediate connecting arm, a second spiral arm and a second torsion arm connected in sequence. The first torsion arm and the second torsion arm are both in contact with the first abutment portion of the buffer seat. The first spiral arm and the second spiral arm are sleeved on the rotating shaft, and the intermediate connecting arm is engaged with the hook portion of the rotating shaft connecting member.

31. The cutting mechanism according to claim 26, wherein: The cutting mechanism further includes a driving assembly, the driving assembly being connected to the protection assembly and configured to drive the protection assembly to rotate; and / or the driving assembly being connected to the cutting assembly and configured to drive the cutting assembly to rotate; The cutting mechanism further includes a detector and a controller, wherein at least a portion of the detector is located on the connecting assembly, and the detector is used to detect a rotation angle of the cutting mechanism relative to the self-moving device; The controller is electrically connected to the detector, and the controller is used to control the driving component to stop driving when the detector detects that the rotation angle of the cutting mechanism relative to the self-moving device is greater than a first preset angle; the controller is also used to control the driving component to resume driving when the detector detects that the rotation angle of the cutting mechanism relative to the self-moving device is reduced to less than or equal to the first preset angle.

32. The cutting mechanism according to claim 31, wherein: The detector includes but is not limited to an encoder, or an angle detector, or the detector includes a Hall sensor and a magnet.

33. The cutting mechanism according to any one of claims 26 to 32, wherein: The cutting mechanism further includes a connecting bearing, which includes a first shaft ring and a second shaft ring that can rotate relative to each other. The first shaft ring is connected to the cutting component, and the second shaft ring is connected to the protection component.

34. A cutting mechanism, characterized in that: include: A protective assembly, the protective assembly comprising a first central disk and a plurality of first extension units surrounding an outer periphery of the first central disk, wherein at least a portion of an introduction slot is formed between two adjacent first extension units; the introduction slot extends from an outer periphery of the protective assembly toward a side where a center of the protective assembly is located; a cutting assembly, the cutting assembly being disposed within a protection range of the protection assembly, and at least a portion of the introduction groove being located within the cutting range of the cutting assembly; a first driving assembly, the first driving assembly being connected to the cutting assembly and configured to drive the cutting assembly to rotate; A second driving assembly is connected to the protection assembly, and the second driving assembly is used to drive the protection assembly to rotate.

35. A cutting mechanism, characterized in that: include: A protective assembly, the protective assembly comprising a first central disk and a plurality of first extension units surrounding an outer periphery of the first central disk, wherein at least a portion of an introduction slot is formed between two adjacent first extension units, the introduction slot extending from an outer periphery of the protective assembly toward a side where a center of the protective assembly is located; a cutting assembly, wherein the cutting assembly is disposed within a protection range of the protection assembly, and a portion of the introduction groove is located within the cutting range of the cutting assembly; and A driving assembly is connected to the protection assembly and the cutting assembly, and is used to drive the protection assembly and the cutting assembly to rotate.

36. A cutting device, characterized in that The cutting device includes a fuselage main body and at least one cutting mechanism according to any one of claims 1 to 35, and the cutting mechanism is arranged on the fuselage main body.

37. The cutting device according to claim 36, characterized in that At least a portion of the introduction slot is located outside the orthographic projection area of the fuselage body.

38. The cutting device according to claim 37, characterized in that The fuselage body includes a front end and a rear end along a travel direction, and the fuselage body also includes a first side and a second side along a width direction; The cutting mechanism is located on the first side of the fuselage body, the extension direction of each of the introduction slots is inclined compared to the travel direction, and the plurality of introduction slots are arranged in a clockwise direction around the center of the protection assembly; and / or, The cutting mechanism is located on the second side of the fuselage body, the extension direction of each of the introduction grooves is inclined compared to the travel direction, and the plurality of introduction grooves are arranged in a counterclockwise direction around the center of the protection component.

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