Cutting mechanism and mower

Abstract

The cutting mechanism is installed on a mower body of the mower, the mower runs on a running plane and comprises a cutting assembly and at least one floating piece, one end of the floating piece is rotationally connected with the mower body, the other end of the floating piece is rotationally connected with the cutting assembly, and the cutting assembly is suspended relative to the running plane; the rotating axis of the floating piece is perpendicular to the advancing direction of the mower, and the projection of the connecting line of one end and the other end of the floating piece on the running plane is parallel to the advancing direction of the mower. When the cutting assembly encounters an obstacle, the floating piece can rotate around the first direction of the rotating axis of the end, connected with the machine body, of the floating piece, and the cutting assembly is driven to be lifted to the first height position so as to avoid the obstacle. And after the cutting assembly crosses the obstacle, the floating piece rotates around the second direction of the rotating axis of the end, connected with the machine body, of the floating piece, and the cutting assembly falls back to the second height position, so that the obstacle avoidance capability of the mower is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mowing robot technical field especially relates to a mowing machine. BACKGROUND

[0002] In the process of mowing machine mobile operation, if there is a stone, a soil block and other protrusions on the ground obstacles on the moving path of the mowing machine, the mowing machine moves according to the original moving path, the cutter head of the mowing machine will be in hard contact with these obstacles, and the cutter head will be damaged, thereby affecting the subsequent operation of the mowing machine. SUMMARY

[0003] Therefore, the application provides a mowing machine, which improves the obstacle avoidance capability of the mowing machine by improving the structural features of the cutting mechanism in the mowing machine.

[0004] The first aspect of the embodiment of the application provides a cutting mechanism, which is installed on the body of the mowing machine and includes a cutting assembly and at least one floating member. One end of the floating member is rotationally connected to the body, and the other end is rotationally connected to the cutting assembly, so that the cutting assembly is suspended relative to the ground. The rotation axis of the floating member is perpendicular to the forward direction of the mowing machine, and along the height direction of the mowing machine, the projection extension direction of the floating member is parallel to the forward direction of the mowing machine. When the cutting assembly encounters an obstacle, the floating member can rotate around the first direction of the rotation axis of the floating member and lift the cutting assembly to the first position to avoid the obstacle. After the cutting assembly passes over the obstacle, the floating member rotates around the second direction of the rotation axis of the floating member, and the cutting assembly falls back to the second position. In this way, the obstacle avoidance capability of the mowing machine is improved.

[0005] The mowing machine in the application is provided with a cutting mechanism with a floating function. In the cutting mechanism, the cutting assembly can float close to the body of the mowing machine along with the floating rod when it is obstructed by a roadblock, so as to pass over the roadblock. In this way, the hard contact between the cutting assembly and the roadblock can be reduced, and the mowing machine can continue to move along the predetermined route, so that the mowing machine will not stop at the location of the roadblock due to the mutual interference between the cutting assembly and the roadblock, and will not hinder the movement of the mowing machine on the predetermined route.

[0006] In addition, due to the setting of the direction of the floating member in the above embodiment, the floating member can more sensitively drive the cutting assembly to float. When the cutting assembly encounters a roadblock during the movement of the cutting machine, the floating member can quickly float and lift the cutting assembly, so that the cutting assembly can pass over the roadblock. In this way, the influence of the roadblock on the movement of the mowing machine is shortened, and the hard contact time between the cutting assembly and the roadblock is also reduced, so that the mowing machine can complete the predetermined route more quickly, thereby improving the mowing efficiency of the mowing machine to a certain extent.

[0007] The second aspect of the embodiments of the present application provides a mower, the mower comprising a body and at least one cutting mechanism mentioned in the first aspect of the embodiments of the present application.

[0008] Since the main beneficial effects of the second aspect come from the first aspect, the beneficial effects of the second aspect are specifically referred to the beneficial effects of the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0010] Figure 1 is a top view of a mower in the present application;

[0011] Figure 2 is Figure 1 a schematic diagram of the obstacle avoidance process of the mower in the present application;

[0012] Figure 3 is Figure 1 a structure schematic diagram after partial cutting along the height direction of the mower;

[0013] Figure 4 is Figure 1 a top view of the local structure of the mower in the present application;

[0014] Figure 5 is an assembly schematic diagram of a cutting mechanism from one perspective;

[0015] Figure 6 is Figure 5 a structure schematic diagram of a floating element and its associated structure;

[0016] Figure 7 is Figure 5 a sectional view of the structure shown;

[0017] Figure 8 is Figure 5 a top view of the structure shown;

[0018] Figure 9 is Figure 8 a partial exploded view of the structure shown;

[0019] Figure 10 is Figure 8 a structure schematic diagram of the remaining part of the hidden mounting seat;

[0020] Figure 11The electrical connection diagram of the controller and the associated structure in the mower.

[0021] It should be noted that the drawings are not necessarily drawn to scale, but are only shown in a schematic manner without affecting the understanding of the reader.

[0022] Explanation of reference signs:

[0023] 1-mower, 2-obstacle;

[0024] 10-machine body, 100-rotary connection shaft, 110-machine body main body, 270-bracket seat, 50-connection mechanism, 500-mounting seat, 510-driving assembly, 511-driving motor, 512-driving gear, 513-transmission gear, 514-mounting frame, 5140-limiting part, 515-connection rod, 520-rotary part, 521-positioning through hole, 530-second elastic member, 540-fixing member;

[0025] 30-traveling mechanism;

[0026] 20-cutting mechanism, 200-cutting assembly, 201-mowing motor, 202-cutter head, 210-floating member, 220-first elastic member, 230-first sensor, 240-second sensor, 250-sensing member, 260-controller, 271-avoidance hole, 280-shield, 281-shield space, 290-floating seat;

[0027] Z-height direction, M-forward direction, R1-first direction, R2-second direction. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0029] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains. The terms “an,” “a,” or “the,” as used herein, do not indicate a limitation of quantity, but are merely used to indicate the presence of at least one. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] The following will refer to the appendices in the embodiments of this application. Figure 1 - Appendix Figure 11 The technical solutions in the embodiments of this application are described clearly and completely.

[0032] Please refer to this first. Figures 1 to 2 This application provides a lawnmower 1, which can be viewed first. Figure 1 , Figure 1 The walking mechanism 30 is connected to the body 10 and drives the body 10 to move so that the lawnmower 1 moves along a predetermined mowing route on the driving plane. Figure 2 This is a simplified illustration of obstacle avoidance for a lawnmower 1, mainly showing how the cutting mechanism 20 moves when the lawnmower 1 encounters an obstacle 2 (such as a clod of soil, a stone, etc.) during its movement.

[0033] The lawnmower 1 includes a body 10 and at least one cutting mechanism 20. For ease of description and reader understanding, the cutting mechanisms 20 installed at different positions on the body 10 are named the first cutting mechanism, the second cutting mechanism, etc. The lawnmower 1 includes the first cutting mechanism, which is connected to the first installation position on the body 10.

[0034] This application also provides a cutting mechanism 20, which is installed on the body 10 of the lawnmower 1. The lawnmower 1 travels on a travel plane, and the cutting mechanism 20 moves with the body 10 to cut the grass on the travel path of the lawnmower 1.

[0035] The cutting mechanism 20 comprises a cutting assembly 200 and at least one floating member 210, one end of the floating member 210 is rotationally connected with the machine body 10, and the other end is rotationally connected with the cutting assembly 200, so that the cutting assembly 200 is suspended compared with the running plane. When the cutting assembly 200 encounters an obstacle 2, due to the blocking effect of the obstacle 2, the cutting assembly 200 stops at the obstacle 2, and the machine body 10 still moves with the running mechanism 30. Therefore, when the cutting assembly 200 encounters the obstacle 2, the floating member 210 can rotate around the first direction R1 of the rotation axis of the floating member 210, and drive the cutting assembly 200 to rise to the first height position to avoid the obstacle 2; after the cutting assembly 200 passes the obstacle 2, the floating member 210 rotates around the second direction R2 of the rotation axis of the floating member 210, and the cutting assembly 200 falls to the second height position.

[0036] In other words, the cutting assembly 200 drives the floating member 210 to move, and since the other end of the floating member 210 is also connected to the machine body 10, the floating member 210 rotates around the machine body 10, so that the cutting assembly 200 is driven to float up, so that the cutting assembly 200 can be higher than the height of the obstacle 2, and the cutting assembly 200 can move with the machine body 10 and pass above the obstacle 2 to move to other mowing areas with the machine body 10.

[0037] The rotation axis of the floating member 210 is perpendicular to the advancing direction M of the lawn mower 1. When the lawn mower 1 advances, the floating member 210 rotates in a direction perpendicular to the advancing direction M.

[0038] In the height direction Z of the lawn mower 1, the projection of the line connecting one end and the other end of the floating member 210 on the running plane is parallel to the advancing direction M of the lawn mower 1. In other words, the floating member 210 is inclined compared to the height direction Z of the cutting mechanism 20, so that during the movement of the lawn mower 1, the floating member 210 can float up and down along the height direction Z of the lawn mower 1, and the floating member 210 can lift the cutting assembly 200 at the first time when the cutting assembly 200 is blocked to reduce the duration of hard contact between the cutting assembly 200 and the obstacle 2, and shorten the duration of the lawn mower 1 stopping at the position of the obstacle 2 due to the interaction between the cutting assembly 200 and the obstacle 2.

[0039] It should be noted that the projection of the floating member 210 refers to the projection of the floating member 210 on a plane perpendicular to the height direction Z of the lawn mower 1, which can be a long strip or a line, and the projection extension direction of the floating member 210 refers to the length direction of the long strip or line projection, or the longer dimension extension direction of other shape projections.

[0040] The cutting assembly 200 is spaced from the ground, so that the cutting assembly 200 will not be worn due to ground friction during movement.

[0041] When there is an obstacle 2 on the moving path of the cutting assembly 200, the floating member 210 can rotate around the first direction R1 (see the first direction R1 in FIG. 11) of the rotation axis of the end of the floating member 210 connected to the fuselage 10, and lift the floating member 210, which in turn lifts the cutting assembly 200 and avoids the obstacle 2; after the cutting assembly 200 passes the obstacle 2, the end of the floating member 210 connected to the fuselage 10 rotates along the second direction R2 (see the second direction R2 in FIG. 11) of the rotation axis of the floating member 210, and the floating member 210 falls back, which in turn makes the cutting assembly 200 fall back to the initial height position compared to the ground. Figure 6 Figure 6

[0042] The first direction R1 can be understood as the clockwise direction around the rotation axis, and the second direction R2 can be understood as the counterclockwise direction around the rotation axis, that is, the first direction R1 and the second direction R2 refer to two opposite rotation directions.

[0043] The mower 1 in the present application is provided with a cutting mechanism 20 with a floating function, in which the cutting assembly 200 can float close to the fuselage 10 of the mower 1 along with the floating rod when it is blocked by an obstacle 2, so as to pass the obstacle 2, thereby reducing the hard contact between the cutting assembly 200 and the obstacle 2, and enabling the mower 1 to continue moving along the predetermined route, so that the mower 1 will not stop at the position of the obstacle 2 due to the mutual interference between the cutting assembly 200 and the obstacle 2, and will not hinder the movement of the mower 1 on the predetermined route.

[0044] In addition, due to the setting of the direction of the floating member 210 in the above embodiment, the floating member 210 can more sensitively drive the cutting assembly 200 to float, and when the cutting assembly 200 encounters an obstacle 2 during the movement of the mower, the floating member 210 can quickly float and lift the cutting assembly 200 to make the cutting assembly 200 pass the obstacle 2, thereby not only shortening the influence of the obstacle 2 on the movement of the mower 1, but also reducing the hard contact time between the cutting assembly 200 and the obstacle 2, so that the mower 1 can complete the predetermined route more quickly, and to a certain extent, the efficiency of the mower 1 is improved.

[0045] Figure 1 Figure 3 Optionally, the cutting assembly 200 has a storage state and an unfolded state, when the cutting assembly 200 is in the storage state, the area of the cutting assembly 200 located outside the projection area of the fuselage 10 in the height direction Z is a first area, and when the cutting assembly 200 is in the unfolded state, the area of the cutting assembly 200 located outside the projection area of the fuselage 10 in the height direction Z is a second area, and the area of the second area is greater than that of the first area.​​​​

[0046] In other words, the cutting assembly 200 switches the exposure degree of the cutting assembly 200 relative to the machine body 10 by adjusting the position of the cutting assembly 200 relative to the machine body 10. When the cutting assembly 200 exposes a larger area of the machine body 10, the cutting assembly 200 is considered to be in the unfolded state. When the cutting assembly 200 exposes a smaller area of the machine body 10 or 0, and the exposed area is smaller than the exposed area in the unfolded state, the cutting assembly 200 is considered to be in the stowed state.

[0047] In some embodiments, when the cutting assembly 200 is in the stowed state, the cutting assembly 200 is entirely located in the projection area of the machine body 10 in the height direction Z.

[0048] In some embodiments, when the cutting assembly 200 is in the unfolded state, the rotation axis of the floating member 210 is perpendicular to the forward direction M of the mower 1, and the projection extension direction of the floating member 210 is parallel to the forward direction M of the mower 1 in the height direction Z of the mower 1. In this way, when the mower 1 performs the edge trimming operation, the floating of the cutting assembly 200 also has high timeliness and sensitivity.

[0049] In this way, the working position of the cutting assembly 200 can be adjusted by moving the position of the cutting assembly 200 relative to the machine body 10. When the mower 1 needs to perform the edge trimming operation, the cutting assembly 200 can be adjusted to the unfolded state so that the cutting assembly 200 can perform the mowing operation on the grass located outside the periphery of the machine body 10. When the mower 1 needs to pass through a small-size road, the cutting assembly 200 can be stowed so that the cutting assembly 200 is in the stowed state, thereby reducing the overall size of the mower 1 and enabling the mower 1 to smoothly pass through the small-size road.

[0050] In summary, by switching the state of the cutting assembly 200, the mowing area of the mower 1 can be improved to some extent, and the overall size of the mower 1 can also be adaptively adjusted to improve the adaptability of the mower 1 to the road conditions, thereby avoiding the influence of the road size on the movement operation of the mower 1.

[0051] For reference Figures 4 to 6 Alternatively, the number of floating members 210 is at least three, and the at least three floating members 210 are arranged at intervals. In this way, multiple connection effects can be formed between the cutting assembly 200 and the machine body 10 to improve the stability of the floating connection between the cutting assembly 200 and the machine body 10.

[0052] Further, the three floating members 210 can be arranged equidistantly along the outer periphery of the cutting assembly 200 and parallel to each other, so that the three floating members 210 rotate synchronously, and the connecting points of the three floating members 210 on the cutting assembly 200 are distributed in a triangular shape, and the connecting points of the three floating members 210 on the fuselage 10 are also distributed in a triangular shape. During the floating of the cutting assembly 200, the external force applied by the floating rod to the cutting assembly 200 is balanced, and the three floating members 210 can stably drive the cutting assembly 200 to float, thereby reducing the degree of deflection of the cutting assembly 200.

[0053] Please refer to Figure 6 , wherein, Figure 6 The local enlarged view in FIG. 13 schematically shows the connection state of the first elastic member 220.

[0054] Optionally, the cutting mechanism 20 further comprises a first elastic member 220, which deforms along the floating direction of the cutting assembly 200; one side of the first elastic member 220 abuts against the fuselage 10, and the other side abuts against the floating member 210. In this way, when the cutting assembly 200 encounters an obstacle 2, the floating member 210 rotates relative to the fuselage 10 to lift the cutting assembly 200, at this time, the first elastic member 220 is elastically deformed under force and continues to store elastic potential energy; after the cutting assembly 200 passes over the obstacle 2, the external force applied to the cutting assembly 200 by the obstacle 2 disappears, the first elastic member 220 releases the elastic potential energy and applies an elastic force to the floating member 210, so that the floating member 210 rotates relative to the fuselage 10 again, thereby restoring the floating member 210 to the initial position relative to the fuselage 10, and the cutting assembly 200 can be reset to the initial height position relative to the ground, so that the cutting assembly 200 can continue the cutting operation.

[0055] It should be noted that in some embodiments, the cutting mechanism 20 is not provided with the first elastic member 220, and after the cutting assembly 200 passes over the obstacle 2, the gravity of the cutting assembly 200 can drive the floating member 210 to rotate, so that the cutting assembly 200 is reset to the initial height position relative to the ground.

[0056] Please continue to refer to Figure 6 Further, the first elastic member 220 is a torsion spring; the cutting mechanism 20 further comprises a rotating connection shaft 100 connected to one end of the floating member 210 close to the fuselage 10 and the fuselage 10, and the torsion spring is sleeved on the rotating connection shaft 100.

[0057] When the cutting assembly 200 is lifted to the first position, the torsion spring is deformed; after the cutting assembly 200 passes over the obstacle 2, the floating member 210 rotates in the second direction R2 around the rotating axis of the floating member 210 under the restoring force of the deformation of the torsion spring.

[0058] The rotating connection shaft 100 can position the torsion spring to a certain extent, so as to reduce the movement of the torsion spring compared to the floating part 210 and the machine body 10 during deformation, and improve the structural stability of the cutting mechanism 20.

[0059] In other embodiments, the first elastic member 220 can also be a disc spring, a spring, or other elastic member.

[0060] Please refer to Figures 5 to 10 Optionally, the cutting assembly 200 comprises a floating seat 290 and a mowing motor 201 arranged on the floating seat 290, and the mowing motor 201 is used to provide power required for the operation of the cutting assembly 200 and can float with the floating part 210.

[0061] The floating seat 290 is rotationally connected to the other end of the floating part 210.

[0062] The machine body 10 comprises a machine body 10 main body and a support seat 270 rotationally connected to the machine body 10 main body, and the support seat 270 is rotationally connected to one end of the floating part 210. By switching the position of the support seat 270 relative to the machine body 10, the state of the cutting assembly 200 can be adjusted.

[0063] The support seat 270 is provided with an avoiding hole 271, and the avoiding hole 271 has a hole diameter larger than the size of the mowing motor 201. During the lifting or falling of the cutting assembly 200, the mowing motor 201 can move in the avoiding hole 271, that is, in the height direction Z of the mower 1, the mowing motor 201 can pass through the avoiding hole 271, and in the driving plane direction of the mower 1, the mowing motor 201 can move within the hole body range of the avoiding hole 271. In this way, during the floating of the cutting assembly 200, the mowing motor 201 will not interfere with the support seat 270, so as not to affect the floating effect of the cutting assembly 200.

[0064] In the above embodiments, the support seat 270 is provided to increase the flexibility of the movement of the cutting assembly 200, and the mower 1 can switch the state of the cutting assembly 200 by adjusting the support seat 270.

[0065] In addition, in the height direction Z of the mower 1, the avoiding hole 271 can reduce the size of the cutting mechanism 20, thereby reducing the volume of the cutting mechanism 20 to a certain extent, so that the mower 1 can be more miniaturized.

[0066] Please refer to Figure 5 Further, the cutting assembly 200 further comprises a cutter head 202, and the cutter head 202 is used to cut grass.

[0067] The cutting assembly 200 further comprises a shield 280, the shield 280 is connected with the floating seat 290 and cooperates with the floating seat 290 to limit a shield space 281, the shield 280 is used to shield the structure in the shield space 281, so as to reduce the damage degree of the structure in the shield space 281.

[0068] The cutter head 202 is located in the shield space 281, the output shaft of the mower motor 201 penetrates the floating seat 290 and at least partially enters the shield space 281, the output shaft of the mower motor 201 is drivingly connected with the cutter head 202 to drive the cutter head 202 to rotate.

[0069] In this way, the shield 280 can further protect the cutter head 202, reduce the opportunity of the cutter head 202 directly contacting the obstacle 2, reduce the case that the cutter head 202 is damaged by hard contact with the obstacle 2, so as to further prolong the service life of the cutter head 202.

[0070] It is worth mentioning that the first cutting mechanism described above can refer to the cutting mechanism 20 in the above-mentioned embodiments.

[0071] Please refer to Figure 3 , Figures 5 to 10 Optionally, the machine body 10 further comprises a connecting mechanism 50, the connecting mechanism 50 comprises a mounting seat 500, the mounting seat 500 is connected with the main body of the machine body 10.

[0072] The connecting mechanism 50 further comprises a driving assembly 510, at least part of the driving assembly 510 is arranged in the mounting seat 500.

[0073] The connecting mechanism 50 further comprises a rotating member 520, the rotating member 520 is connected with the driving assembly 510, the rotating member 520 is connected with the support frame, and the rotating member 520 rotates under the driving of the driving assembly 510 to drive the cutting assembly 200 to rotate between the storage state and the unfolded state.

[0074] Among them, the mounting seat 500 is used to connect the driving assembly 510, the rotating member 520 and the machine body 10, the driving assembly 510 is used to drive the rotating member 520 to rotate relative to the machine body 10, so that the cutting assembly 200 can be driven by the rotating member 520 to rotate relative to the machine body 10, so as to adjust the state of the cutting assembly 200, and the cutting assembly 200 can perform corresponding work according to the user's demand.

[0075] In the embodiment of this part, by setting the driving assembly 510, the cutting assembly 200 can rotate under the driving action of the driving assembly 510, so that the cutting assembly 200 can be adjusted to the storage state or the unfolded state, by adjusting the state of the cutting assembly 200, the lawn mower 1 can perform cleaning work on different areas of the grass body, thereby increasing the automation capability of the lawn mower 1, and the user no longer needs to manually adjust the position of the cutting assembly 200 by stopping the work of the lawn mower 1, thereby improving the user experience.

[0076] Further, the lawn mower 1 further comprises a second cutting mechanism connected to the second mounting position of the machine body 10 through the connecting mechanism 50, so as to increase the mowing work area of the lawn mower 1.

[0077] Further, the first cutting mechanism and the second cutting mechanism can be the same structure, or the first cutting mechanism is a main cutting mechanism 20 connected to the middle part of the machine body 10 of the lawn mower 1, and the second cutting mechanism is an edge cutting mechanism 20 connected to the edge side of the machine body 10 of the lawn mower 1, and the second cutting mechanism can move relative to the machine body 10 through the connecting mechanism 50 to adjust the position of the cutting assembly in the second cutting mechanism relative to the machine body 10, so that the cutting range of the second cutting mechanism is different from that of the first cutting mechanism.

[0078] Reference can be made to Figure 3 and Figure 7 wherein, Figure 3 the enlarged view of the area in schematically shows part of the connection diagram of the connecting mechanism 50.

[0079] Further, the driving assembly 510 comprises a driving motor 511, a driving gear 512, a transmission gear 513, a mounting frame 514 and a connecting rod 515, the output shaft of the driving motor 511 is connected to the driving gear 512 to provide the driving force required by the driving gear 512.

[0080] The driving gear 512 is meshed and connected with the transmission gear 513, when the driving gear 512 rotates, the transmission gear 513 rotates accordingly.

[0081] The mounting frame 514 is connected to the transmission gear 513, the connecting rod 515 is provided through and connected to the mounting frame 514, one end of the rotating member 520 is sleeved and connected to the connecting rod 515, in this way, when the transmission gear 513 rotates, the connecting rod 515 rotates with the transmission gear 513, thereby driving the rotating member 520 to rotate, that is, the driving motor 511 drives the mounting frame 514, the connecting rod 515 and the rotating member 520 to rotate through the driving gear 512 and the transmission gear 513.

[0082] Thus, in the operation process of the driving assembly 510, the rotating member 520 can rotate with the rotation of the connecting rod 515, and since the mounting seat 500 is connected to the machine body 10, the mounting seat 500 does not rotate relative to the machine body 10, and the driving assembly 510 operates in the mounting seat 500, so that the driving assembly 510 does not move relative to the machine body 10, and the rotating member 520 can rotate relative to the machine body 10. The end of the rotating member 520 away from the driving assembly 510 is also connected to the cutting assembly 200, so that the rotating member 520 can drive the cutting assembly 200 to rotate relative to the machine body 10 under the action of the driving assembly 510, thereby enabling the cutting assembly 200 to switch states.

[0083] In the above embodiment, the driving motor 511 increases the automation degree of the driving assembly 510, thereby improving the electrical control of the mower 1. The gear structure can reduce the space occupied by the gear by reasonable planning and placement, thereby reducing the space ratio of the driving assembly 510 itself, and to a certain extent, reducing the volume and space ratio of the cutting mechanism 20. Further, the transmission gear 513 and the mounting bracket 514 are an integral structure, and the two can be interconnected as a whole after separate molding, or formed by integral molding processing. In this way, the transmission gear 513 and the mounting bracket 514 can rotate synchronously, so that the driving action of the driving motor 511 can be transmitted to the rotating member 520 more timely, so that the rotating member 520 drives the cutting assembly 200 to rotate relative to the machine body 10 to adjust the state of the cutting assembly 200.

[0084] Please refer to Figure 7 and Figure 10 Optionally, the driving assembly 510 further comprises a second elastic member 530, and the second elastic member 530 elastically connects the connecting rod 515 and the rotating member 520. The mounting bracket 514 further comprises a limiting portion 5140, and the second elastic member 530 provides elastic force to drive the rotating member 520 to rotate towards the limiting portion 5140 until the rotating member 520 abuts against the limiting portion 5140, wherein when the rotating member 520 moves to abut against the limiting portion 5140, it is proved that the rotating member 520 has rotated to the target position.

[0085] Thus, when the rotating member 520 is separated from the abutting limiting portion 5140 due to external force (at this time, the external force drives the rotating member 520 to move along the direction of the running plane), the rotating member 520 will rotate relative to the connecting rod 515, causing the second elastic member 530 to be twisted and deformed, but after the external force disappears, the second elastic member 530 will release the elastic potential energy to drive the rotating member 520 to move to abut against the limiting portion 5140, thereby ensuring that the rotating member 520 has rotated to the target position. At this time, the floating member 210 can be in the above-mentioned position state, so that the cutting mechanism 20 can be in the best floating state.

[0086] In addition, due to the rotation of the rotating member 520 relative to the mounting frame 514, the cutting assembly 200 in the unfolded state will be synchronized with the rotation of the rotating member 520 and will be deflected by a certain angle relative to the mounting frame 514 (or the machine body 10), which may affect the mowing effect of the cutting assembly 200. Therefore, under the action of the second elastic member 530, once the external force disappears, the mounting frame 514 and the rotating member 520 can be relatively rotated again to reset, and the cutting assembly 200 can be reset to the unfolded state to prevent the mower 1 from reducing its mowing effect due to the movement of the cutting assembly 200.

[0087] Optionally, the connecting mechanism 50 further comprises a plurality of fixing members 540, and the rotating member 520 is connected to the support seat 270 through the fixing members 540, so as to drive the support seat 270 to rotate relative to the machine body 10.

[0088] The rotating member 520 is provided with at least three positioning through holes 521, and a fixing member 540 is arranged to pass through a positioning through hole 521 and connect the support seat 270. Meanwhile, the plurality of positioning through holes 521 can increase the connection strength between the fixing member 540 and the support seat 270, thereby improving the connection stability between the rotating member 520 and the support seat 270.

[0089] Further, the plurality of positioning through holes 521 are equidistantly distributed in the peripheral direction of the rotating member 520, so that equidistant connection positions are formed between the rotating member 520 and the support seat 270, and the action of the rotating member 520 on the support seat 270 can be uniformly distributed on the surface of the support seat 270, and the rotating member 520 can smoothly drive the support seat 270 to rotate.

[0090] For reference Figure 7 and Figure 11 Optionally, the cutting mechanism 20 further comprises a first sensor 230 and a second sensor 240, and the first sensor 230 and the second sensor 240 are arranged at intervals on the mounting seat 500 to form different sensing range areas.

[0091] The cutting mechanism 20 further comprises a sensing member 250 arranged on one side of the mounting frame 514 close to the mounting seat 500. When the cutting assembly 200 is in the unfolded state, the sensing member 250 is located in the sensing range of the first sensor 230; when the cutting mechanism 20 is in the unfolded state, the sensing member 250 is located in the sensing range of the second sensor 240. In this way, the controller 260 can receive sensing signals transmitted by different sensors or the state of the cutting assembly 200.

[0092] The cutting mechanism 20 further comprises a controller 260 electrically connected to the cutting assembly 200, the controller 260 is configured to receive the sensing signal of the first sensor 230, when the controller 260 receives the sensing signal of the first sensor 230, the controller 260 controls the cutting assembly 200 to enter the first working state; when the controller 260 receives the sensing signal of the second sensor 240, the controller 260 controls the cutting assembly 200 to enter the second working state.

[0093] For example, when the cutting mechanism 20 only needs to perform the trimming work, only the cutting assembly 200 is in the extended state, the cutting assembly 200 needs to perform the mowing work, when the cutting assembly 200 is in the storage state, the cutting assembly 200 can stop working, or reduce the rotating speed of the cutter head 202 assembly, so that the cutting assembly 200 enters the auxiliary trimming state.

[0094] In this way, the working state of the cutting assembly 200 can be adjusted according to the position state of the cutting assembly 200 relative to the machine body 10 through the first sensor 230, the second sensor 240 and the controller 260 in the above-mentioned embodiments, thereby increasing the adaptive adjustment capability of the cutting assembly 200 (or the lawn mower 1), and at the same time, the energy consumption of the cutting assembly 200 (or the lawn mower 1) can be reduced to a certain extent.

[0095] Further, the first sensor 230 and / or the second sensor 240 is a Hall sensor, and the sensing piece 250 is a magnetic piece.

[0096] Alternatively, the first sensor 230 and / or the second sensor 240 is a photoelectric sensor, and the sensing piece 250 is a light blocking piece.

[0097] It is worth mentioning again that the second cutting mechanism described above can refer to the cutting mechanism 20 in the above-mentioned embodiments.

[0098] For the embodiments of the present application, it also needs to be explained that the embodiments of the present application and the features in the embodiments can be combined with each other to obtain new embodiments without conflict.

[0099] It should be noted that, for the above-mentioned method embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence, because according to the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the present application.

[0100] In the above-mentioned embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0101] The above, the above examples are only to illustrate the technical solutions of the present application, but not limited to them; although the present application is described in detail with reference to the foregoing examples, those skilled in the art should understand that: it still can be modified to the technical solutions recorded in the foregoing examples, or part of the technical features are replaced by the equivalent; and these modifications or replacements, do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cutting mechanism, mounted on the body of a lawnmower, the lawnmower traveling on a driving plane, characterized in that, The cutting mechanism comprises: a cutting assembly, and at least one floating member, one end of the floating member being rotationally connected to the machine body and the other end being rotationally connected to the cutting assembly, so that the cutting assembly is suspended relative to the running plane; the rotation axis of the floating member is perpendicular to the advancing direction of the mower, and the projection of the line connecting the one end and the other end of the floating member on the running plane is parallel to the advancing direction of the mower; when the cutting assembly encounters an obstacle, the floating member is capable of rotating in a first direction about the rotation axis of the one end of the floating member connected to the machine body, and driving the cutting assembly to lift to a first height position to avoid the obstacle; after the cutting assembly passes over the obstacle, the floating member rotates in a second direction about the rotation axis of the one end of the floating member connected to the machine body, and the cutting assembly falls back to a second height position.

2. The cutting mechanism of claim 1, wherein, The cutting assembly has a storage state and a deployed state, when the cutting assembly is in the storage state, the area of the cutting assembly located outside the projection area of the machine body in the height direction is a first area, when the cutting assembly is in the deployed state, the area of the cutting assembly located outside the projection area of the machine body in the height direction is a second area, and the area of the second area is greater than that of the first area; alternatively, when the cutting assembly is in the storage state, the cutting assembly is completely located within the projection area of the machine body in the height direction.

3. The cutting mechanism of claim 1 wherein, The number of the floating members is at least three, and the at least three floating members are arranged apart from each other.

4. The cutting mechanism of claim 1 wherein, The cutting mechanism further comprises a first elastic member, which deforms along the floating direction of the cutting assembly; one side of the first elastic member abuts against the machine body, and the other side abuts against the floating member.

5. The cutting mechanism of claim 4, wherein, The first elastic member is a torsion spring. The cutting mechanism further comprises a rotation connecting shaft, which is connected to the one end of the floating member close to the machine body and the machine body, and the torsion spring is sleeved on the rotation connecting shaft; when the cutting assembly lifts to the first position, the torsion spring deforms; after the cutting assembly passes over the obstacle, the floating member rotates in the second direction about the rotation axis of the floating member at least under the restoring force of the deformation of the torsion spring.

6. A lawnmower characterised in that, The mower comprises a machine body and at least one cutting mechanism as claimed in any one of claims 1-5.

7. The lawnmower as described in claim 6, characterized in that, The cutting assembly comprises a floating seat and a mowing motor arranged on the floating seat; the floating seat is rotationally connected to the other end of the floating member; The machine body comprises a machine body main body and a support seat rotationally connected to the machine body main body; the support seat is rotationally connected to one end of the floating member; the support seat is provided with an avoiding hole; the avoiding hole has a larger diameter than the size of the mowing motor, and the mowing motor can move in the avoiding hole during the lifting or falling of the cutting assembly.

8. The lawnmower as described in claim 7, characterized in that, The cutting assembly further comprises a shield and a cutter head; the shield is connected to the floating seat and cooperates with the floating seat to define a shield space. The cutter head is located in the cover space, the output shaft of the mower motor passes through the floating seat and at least partially enters the cover space, and the output shaft of the mower motor is drivingly connected with the cutter head.

9. The lawnmower as described in claim 7, characterized in that, The machine body further comprises a connecting mechanism, which comprises: a mounting seat connected to the machine body; a drive assembly at least partially arranged in the mounting seat; a rotating member connected to the drive assembly and connected to the support seat, the rotating member rotating under the drive of the drive assembly to drive the cutting assembly to rotate between the storage state and the unfolded state.

10. The lawnmower as claimed in claim 9, characterized in that the cutting height of the lawnmower is adjustable by means of the control unit. The drive assembly comprises a drive motor, a drive gear, a transmission gear, a mounting rack and a connecting rod, the output shaft of the drive motor is connected with the drive gear, the drive gear is meshingly connected with the transmission gear, the mounting rack is connected with the transmission gear, the connecting rod passes through and is connected with the mounting rack, and one end of the rotating member is sleeved with and connected with the connecting rod; the drive motor drives the mounting rack, the connecting rod and the rotating member to rotate through the drive gear and the transmission gear.

11. The lawnmower as described in claim 10, characterized in that, The drive assembly further comprises a second elastic member, which elastically connects the connecting rod and the rotating member; The mounting rack further comprises a limiting portion, and the second elastic member provides elastic force to drive the rotating member to rotate towards the limiting portion until the rotating member abuts against the limiting portion.

12. The lawnmower as claimed in claim 10, wherein, The connecting mechanism further comprises a plurality of fixing members, and the rotating member is connected with the support seat through the fixing members; The rotating member is provided with at least three positioning through holes, one fixing member passes through one positioning through hole and is connected with the support seat.

13. The lawnmower as claimed in claim 10, wherein, The cutting mechanism further comprises: a first sensor and a second sensor, which are arranged at intervals in the mounting seat; a sensing member arranged on the side of the mounting rack close to the mounting seat, the sensing member being located in the sensing range of the first sensor when the cutting assembly is in the unfolded state, and the sensing member being located in the sensing range of the second sensor when the cutting mechanism is in the unfolded state; a controller electrically connected with the cutting assembly, the controller being configured to receive the sensing signal of the first sensor, the controller controlling the cutting assembly to enter a first working state when the controller receives the sensing signal of the first sensor, and the controller controlling the cutting assembly to enter a second working state when the controller receives the sensing signal of the second sensor.

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