Lawn mower

Abstract

The utility model provides a mowing machine. The mowing machine comprises a machine body; the main cutting assembly is mounted on the machine body and is provided with a first cutting area; the trimming unit is mounted on the machine body, and the trimming unit is provided with a second cutting area different from the first cutting area; and the isolation device is arranged between the main cutting assembly and the trimming unit. The isolation device can block cut grass clippings of the main cutting assembly and cut grass clippings of the trimming unit. The problem that grass clippings splash mutually when the main cutting assembly and the trimming unit are used for cutting is solved, the grass clippings are prevented from affecting the structures of the main cutting assembly and the trimming unit, and normal operation of the mower is guaranteed.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of power tools, in particular to a lawn mower. BACKGROUND

[0002] A lawn mower is an electric power tool used for trimming a lawn; the lawn mower comprises a main cutting assembly having a cutting head therein, which rotates at high speed to achieve the function of cutting weeds.

[0003] Some lawn mowers are also provided with an edging unit, which comprises a separate cutting head, and the weeds in the corners or edges that cannot be cut by the main cutting assembly are cleaned by the edging unit. However, during the high-speed operation of the cutting head of the edging unit, grass clippings will splash into the main cutting assembly; or during the high-speed operation of the main cutting assembly, grass clippings will also splash into the edging unit, and the mutual splashing of the grass clippings affects the normal operation of the lawn mower. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the purpose of the present disclosure is to provide a lawn mower, which solves the problem of mutual splashing of grass clippings during cutting by the main cutting assembly and the edging unit, and avoids the influence of grass clippings on the normal operation of the lawn mower.

[0005] In order to achieve one of the above purposes, the present disclosure provides a lawn mower, comprising:

[0006] a machine body;

[0007] a main cutting assembly mounted on the machine body, the main cutting assembly having a first cutting area;

[0008] an edging unit mounted on the machine body, the edging unit having a second cutting area different from the first cutting area;

[0009] an isolation device arranged between the main cutting assembly and the edging unit.

[0010] In some embodiments, the isolation device comprises a first isolation unit arranged on the main cutting assembly, and / or a second isolation unit arranged on the edging unit.

[0011] In some embodiments, the edging unit reciprocates between a storage position, a first working position and a second working position; when the edging unit is in the storage position, the edging unit is at least partially located in the machine body; the included angle between the edging unit in the storage position and the edging unit in the first working position is an acute angle; and the included angle between the edging unit in the storage position and the edging unit in the second working position is an obtuse angle.

[0012] In some embodiments, the first isolation unit comprises:

[0013] A first guard configured to be connected with the cutter head cover, the first guard being located at a side of the cutter head cover close to the trimming unit, the first guard being further configured to be located between the main cutting assembly and the trimming unit when the trimming unit is in the first working position.

[0014] In some embodiments, the first guard is configured to:

[0015] When the mower is in a horizontal state, a lower edge of the first guard is lower than a height of the main cutting assembly.

[0016] In some embodiments, the first isolation unit comprises:

[0017] A second guard configured to be connected with the cutter head cover, the second guard being located at a side of the cutter head cover close to the trimming unit, the second guard being further configured to be located between the cutter motor and the trimming unit when the trimming unit is in the first working position.

[0018] In some embodiments, the second isolation unit is configured to be a side cover connected with the trimming unit, the side cover being configured to:

[0019] Rotate around a rotation axis under the drive of a driving device;

[0020] When the trimming unit is in the second working position, the side cover is located between the trimming unit and the main cutting assembly in a circumferential direction around the rotation axis, and a ground clearance of a lower edge of the side cover is smaller than a ground clearance of the trimming unit.

[0021] In some embodiments, the mower comprises a camera, the camera being arranged on the machine body; the second isolation unit is configured to:

[0022] When the trimming unit is in a trimming working mode and / or a corner cutting mode, the second isolation unit is located between the trimming unit and the camera.

[0023] In some embodiments, the machine body has a first axis in a longitudinal direction, the camera is located on the first axis;

[0024] When the trimming unit is set to the corner cutting mode, a line connecting a rotation center of the trimming unit and the camera forms a first median line, and the second isolation unit is symmetrically arranged along the first median line.

[0025] In some embodiments, the trimming unit comprises a swing arm and a working head connected with each other, the swing arm is rotationally connected to the body, and the swing arm drives the working head to reciprocate between the storage position, the first working position and the second working position

[0026] The mower provided by the present disclosure comprises a main cutting assembly for cutting a first cutting area and a trimming unit for cutting a second cutting area, and a separation device is arranged between the main cutting assembly and the trimming unit, which can block the cutting grass clippings of the main cutting assembly and the cutting grass clippings of the trimming unit from splashing each other, so as to avoid the influence of the splashing grass clippings on the normal operation of the main cutting assembly and the trimming unit. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A structural diagram of the mower provided in an embodiment;

[0028] Figure 2 A top view of the trimming unit of the mower provided in an embodiment in the storage position;

[0029] Figure 3 A top view of the trimming unit of the mower provided in some embodiments in the first working position;

[0030] Figure 4 A top view of the trimming unit of the mower provided in some embodiments in the second working position;

[0031] Figure 5 A structural diagram of the mower provided in some embodiments in which the main cutting module is in the highest ground clearance;

[0032] Figure 6 A structural diagram of the mower provided in some embodiments in which the main cutting module is in the lowest ground clearance; Figure 5

[0033] A structural diagram of the mower provided in another embodiment of the present disclosure in which the main cutting module is in the highest ground clearance; Figure 7

[0034] A structural diagram of the mower provided in another embodiment of the present disclosure in which the main cutting module is in the lowest ground clearance; Figure 8 Figure 7

[0035] Figure 9 A structural diagram of the trimming unit provided in some embodiments;

[0036] Figure 10 A structural diagram of the trimming unit provided in some embodiments from another perspective.

[0037] ​​Reference numerals: 10, machine body; 20, main cutting assembly; 30, isolation device; 31, first isolation unit; 311, first protective component; 312, second protective component; 32, second isolation unit; 322, side guard; 40, trimming unit; 41, swing arm; 42, working head; 50, camera; 60, cutter head guard; 70, cutter head motor. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0039] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in the embodiments of this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. 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 can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] Lawn mowers are widely used for landscaping, lawn mowing, urban street greening, garden trimming, and vegetation maintenance in parks, football fields, private villa gardens, and agricultural and forestry farms. They are power tools used to cut weeds in lawns, gardens, pastures, and other areas. Taking a common lawn mower as an example, it mainly consists of an engine (or motor), transmission mechanism, cutting unit, machine body, and moving mechanism. The engine or motor provides power, the transmission mechanism transmits power to the cutting unit, and the moving mechanism moves the cutting unit within the area to be mowed.

[0041] During the process of cutting weeds, the cut grass clippings will fly everywhere. If they get into the internal structure of the lawnmower, they may affect the normal operation of the lawnmower.

[0042] This disclosure proposes a lawnmower, such as Figure 1 and Figure 2As shown, the mower comprises a body 10, a main cutting assembly 20, an edging unit 40 and an isolation device 30, the main cutting assembly 20 is installed on the body 10, the main cutting assembly 20 has a first cutting area; the edging unit 40 is installed on the body 10, the edging unit 40 has a second cutting area different from the first cutting area; the isolation device 30 is arranged between the main cutting assembly 20 and the edging unit 40. The isolation device 30 blocks the grass clippings from the main cutting assembly 20 from splashing into the structure of the edging unit 40 when cutting, and also blocks the grass clippings from the edging unit 40 from splashing into the structure of the main cutting assembly 20 when cutting.

[0043] The body 10 of the mower moves in a preset area, and as the body 10 moves, the main cutting assembly 20 cuts weeds in the first cutting area. Due to the limitation of the body 10, the main cutting assembly 20 cannot cut to the position close to the edge or corner, and by setting the edging unit 40 which can extend out of the body 10 to cut the area close to the edge and corner, the weeds in the preset area are completely cut.

[0044] In this embodiment, in combination with Figure 2 , Figure 3 and Figure 4 As shown, the body 10 is provided with a containing cavity for accommodating the edging unit 40. The edging unit 40 reciprocates between the storage position, the first working position and the second working position, when the edging unit 40 is in the storage position, the edging unit 40 is at least partially located in the containing cavity of the body 10, the included angle formed by the edging unit 40 in the storage position and the edging unit 40 in the first working position is an acute angle (as shown in a of Figure 3 , and the included angle formed by the edging unit 40 in the storage position and the edging unit 40 in the second working position is an obtuse angle (as shown in b of Figure 4 ).

[0045] In some embodiments of this embodiment, the edging unit 40 has three working modes, a storage mode, an edging working mode and a corner cutting mode, and the edging unit 40 switches between the three working modes. As shown in Figure 2 , when the edging unit 40 is turned on in the storage mode, the edging unit 40 is recovered in the storage position to reduce the travel resistance; as shown in Figure 3 , when the edging unit is turned on in the edging working mode, the edge area needs to be cut, the edging unit 40 is rotated to the first working position, and the rotation angle is less than ninety degrees, so that the edge of the edging unit 40 protrudes from the edge of the body 10 and touches the area that cannot be cut by the main cutting assembly 20. In the edging working mode, the edging unit 40 is allowed to move to the storage position after being contacted by an obstacle / wall, etc., and in the limit state, it can be pushed to the storage position, and after leaving the wall / obstacle, it will be reset to the first working position under the cooperation of springs, stop walls and other components. As shown in Figure 4As shown, when the trimming unit is in corner cutting mode, the trimming unit 40 rotates to the second working position with an angle greater than 90 degrees, so that the trimming unit 40 extends out of the body 10 and is a certain distance away from the body 10, and can extend to the corner position that the body 10 cannot reach, to cut the weeds in the corner position.

[0046] In other embodiments of this example, the trimming unit 40 can also start cutting when it is in the storage mode. By controlling the trimming unit 40 to start working in the storage position, the grass between the main cutting component and the edge of the machine body can be cut, and the grass clippings in the aforementioned receiving cavity can be removed.

[0047] It should be noted that the angle between the trimming unit 40 in the storage position and the trimming unit 40 in the first working position, or the angle between the trimming unit 40 in the storage position and the trimming unit 40 in the second working position, refers to the angle between the first extension direction and the second extension direction. The first extension direction is defined as: the longitudinal axis direction of the trimming unit in the storage position (e.g., Figures 2-4 The X direction in the middle). The second extension direction is defined as: the longitudinal axis direction of the trimming unit in the first working position / second working position (e.g., the X direction in the middle). Figure 3 and Figure 4 (in the Y direction). In some implementations of this embodiment, such as Figure 8 and Figure 9 As shown, the trimming unit 40 includes a swing arm 41 and a working head 42 connected to each other. The swing arm 41 is rotatably connected to the body 10, and the swing arm 41 drives the working head 42 to reciprocate between a storage position, a first working position, and a second working position. The working head 42 performs the cutting function; the motor of the lawnmower drives the swing arm 41 to move, and the swing arm 41 drives the working head 42 to move, which can change the position of the working head 42.

[0048] In some preferred embodiments of this example, the swing arm 41 is configured as a single shaft structure, one end of which is pivotally connected to the machine body 10, and the other end of which is fixedly connected to the working head 42. The working head 42 rotates about the connection center between the shaft structure and the machine body 10.

[0049] In some other preferred embodiments of this example, the swing arm 41 includes multiple shaft structures, which are pivotally connected end-to-end in sequence. The first end of the swing arm 41 is pivotally connected to the machine body 10, and the last end of the swing arm 41 is fixedly connected to the working head 42. Since adjacent shaft structures can pivot relative to each other, the working head 42 has multiple movement trajectories under the transmission of multiple shaft structures.

[0050] Combination Figures 5-8 As shown, the main cutting assembly 20 includes a rotating shaft and cutting blades arranged in a circumferential array around the rotating shaft, with the cutting blades connected to the rotating shaft.

[0051] In some embodiments of the present embodiment, the lawn mower further comprises a cutter deck shield 60 and a cutter deck motor 70, the cutter deck motor 70 being connected with the rotating shaft to drive the rotating shaft and the cutting blade to rotate, and the cutter deck shield 60 being located between the main cutting assembly 20 and the cutter deck motor 70 to block grass clippings during cutting of the main cutting assembly 20 from splashing into the connecting structure space between the main cutting assembly 20 and the machine body 10, causing blockage, the connecting structure space above the main cutting assembly 20 including the cutter deck motor 70. Here, the cutter deck shield 60 can be flat.

[0052] In some other embodiments of the present embodiment, the lawn mower further comprises a cutter deck shield 60 and a height adjustment assembly, the height adjustment assembly being used to adjust the ground clearance of the main cutting assembly 20, and the cutter deck shield 60 being located between the main cutting assembly 20 and the height adjustment assembly 70 to block grass clippings during cutting of the main cutting assembly 20 from splashing into the connecting structure space between the main cutting assembly 20 and the machine body 10, causing blockage, the connecting structure space above the main cutting assembly 20 including the height adjustment assembly. Here, the cutter deck shield 60 can be flat.

[0053] It can be understood that other structures can also be included between the main cutting assemblies, which will not be described herein.

[0054] It can be understood that the cutter deck shield is used to block grass clippings during cutting of the main cutting assembly 20 from splashing into the connecting structure space between the main cutting assembly 20 and the machine body 10, which can not only prevent grass clippings from accumulating in the above connecting structure space, causing the main cutting assembly to be unable to be lifted upward, but also prevent grass clippings from entering the above connecting structure space, causing problems such as failure of the cutter deck motor, the internal motor, the height adjustment assembly or other structures.

[0055] In some embodiments of the present embodiment, as shown in Figure 7 and Figure 9 The isolation device 30 includes a first isolation unit 31 arranged on the main cutting assembly 20 and / or a second isolation unit 32 arranged on the trimming unit 40. The first isolation unit 31 is used to block external grass clippings from entering the main cutting assembly 20 or grass clippings in the main cutting assembly 20 from splashing to the outside; and the second isolation unit 32 is used to block external grass clippings from entering the trimming unit 40 or grass clippings in the trimming unit 40 from splashing to the outside. The first isolation unit 31 and / or the second isolation unit 32 are arranged to effectively block grass clippings cut by the main cutting assembly 20 and the trimming unit 40 from splashing to each other.

[0056] In some embodiments of the present embodiment, as shown in Figure 5 and Figure 6As shown, the first isolation unit 31 comprises a first protective member 311 configured to be connected with the cutter shroud 60, the first protective member 311 is located at the side of the cutter shroud 60 close to the trimming unit 40, and the first protective member 311 is further configured to be located between the main cutting assembly 20 and the trimming unit 40 when the trimming unit 40 is in the first working position or the storage position. The first protective member 311 is used to protect the main cutting assembly 20, avoid the grass clippings from flying upward into the connecting structure space between the main cutting assembly 20 and the machine body 10, and also avoid the grass clippings from the main cutting assembly 20 from flying into the trimming unit 40 when cutting.

[0057] In some preferable embodiments of the embodiment, the first protective member 311 is provided as a side wall extending downward from the edge of the cutter shroud 60. When the lawn mower is in the horizontal state, the cutter shroud 60 is located at the upper side of the main cutting assembly 20, and the side wall extending downward from the cutter shroud 60 can isolate in the horizontal direction of the main cutting assembly 20 to avoid the grass clippings from flying.

[0058] In some embodiments of the embodiment, the first protective member 311 is configured to have a lower edge with a height lower than the height of the main cutting assembly 20 when the lawn mower is in the horizontal state. In the horizontal direction of the main cutting assembly 20, the grass clippings from the main cutting assembly 20 are prevented from flying in the horizontal direction to the trimming unit 40.

[0059] In some embodiments of the embodiment, the first isolation unit 31 further comprises a second protective member 312 configured to be connected with the cutter shroud 60 or the machine body 10. Figures 5-8 As shown, the first isolation unit 31 comprises a second protective member 312 configured to be connected with the cutter shroud 60 or the machine body 10, the second protective member 312 is located at the side of the cutter shroud 60 close to the trimming unit 40, and the second protective member 312 is located above the cutter shroud 60, the second protective member 312 is further configured to protect the cutter motor 70 when the trimming unit 40 is in the first working position or the storage position, avoid the grass clippings from the trimming unit 40 from entering the connecting structure space between the cutter shroud 60 and the machine body 10, and avoid the grass accumulated above the cutter shroud from causing blockage when the height of the main cutting assembly 20 is adjusted. Specifically as shown in Figure 5 Figure 6 As shown, in some embodiments of the embodiment, the height of the main cutting assembly 20 is adjustable. The second protective member 312 is configured to be connected with the cutter shroud 60, and the second protective member 312 moves with the cutter shroud 60 when the main cutting assembly is in different working heights. Figure 6 As shown, when the main cutting assembly 20 moves to the lowest position, the height of the farthest end of the second protective member 312 from the ground is not greater than the highest height of the motor exposed outside the shell, so as to ensure that the grass clippings from the main cutting assembly 20 are blocked from flying into the connecting structure space above the main cutting assembly 20 during the lifting / descending process of the cutter.

[0060] In some embodiments of the embodiment, the relative position in the vertical direction when the mower is in the horizontal state is described as the upper side or the lower side. The second guard 312 is arranged as a flange structure extending upward from the cutter cover 60.

[0061] Specifically, the second guard 312 is arranged as a side extending upward from the edge of the cutter cover 60, or the second guard 312 is arranged as a baffle structure protruding upward from the upper surface of the cutter cover 60.

[0062] In some other embodiments of the embodiment, as shown in Figure 7 and Figure 8 specifically, the second guard 312 is arranged to be connected to the machine body 10, and specifically, the second guard 312 is mounted on the machine body 10 and extends along the direction in which the main cutting assembly 20 moves; in the horizontal direction, the second guard 312 is located between the main cutting assembly 20 and the trimming unit 40. The second guard 312 is arranged to prevent grass clippings generated by the main cutting assembly 20 from splashing into the connection structure space above the main cutting assembly 20 during the lifting / descending process of the cutter cover 60, and to prevent grass clippings generated by the trimming unit 40 from splashing into the connection structure space above the main cutting assembly 20.

[0063] Preferably, the ground clearance of the second guard 312 is not greater than the lowest ground clearance of the highest point of the cutter cover 60, so as to prevent grass clippings generated by the main cutting assembly 20 from splashing into the connection structure space above the main cutting assembly 20 during the lifting / descending process of the cutter cover 60.

[0064] In some embodiments of the embodiment, as shown in Figure 9 and Figure 10 the second isolation unit 32 is arranged as a side cover 322 connected to the trimming unit 40, and the side cover 322 is arranged to rotate around the rotation axis under the driving of the driving device; when the trimming unit 40 is in the second working position, the side cover 322 is located between the trimming unit 40 and the main cutting assembly 20 in the circumferential direction around the rotation axis. The side cover 322 is arranged to prevent grass clippings generated by the trimming unit 40 from splashing into the main cutting assembly 20 when the trimming unit 40 is working.

[0065] The relative position of the trimming unit 40 to the main cutting assembly 20 varies depending on its working position. The position of the trimming unit 40 closest to the main cutting assembly 20 in the circumferential direction changes. Correspondingly, the trimming unit 40 can be a partial side shield or a circumferential side shield. In some implementations, the side shield 322 is set to intersect with the line connecting the rotation center of the main cutting assembly 20 and the rotation center of the trimming unit 40, which ensures that the second isolation unit 32 is always blocked between the main cutting assembly 20 and the trimming unit 40. Of course, in other embodiments, the side shield 322 can also be fixedly installed on the machine body 10 or other fixed positions, as long as it is ensured that the side shield 322 blocks between the trimming unit and the main cutting assembly 20 when the trimming unit 40 is working. This will not be elaborated here.

[0066] The lower edge of the side shield 322 is less than the ground clearance of the trimming unit 40. This ensures that the side shield 322 can horizontally block the trimming unit 40, preventing grass clippings from interfering with each other.

[0067] The distance from the ground of the trimming unit 40 refers to the distance from the lowest point of the cutting part in the trimming unit 40 to the ground; the cutting part can be a cutting disc or straw rope, etc.

[0068] In some preferred embodiments of the examples, combined with Figure 9 , Figure 10 As shown, the side shield 322 is a circumferential side shield. The side shield 322 is configured as a fully enclosed structure around the trimming unit 40. During the movement of the trimming unit 40, when the relative position between the trimming unit 40 and the main cutting component 20 changes, the outer wall of the side shield 322 prevents the grass clippings trimmed by the trimming unit 40 from splashing outwards in the horizontal direction. In other embodiments of this example, the side shield 322 is a partial side shield. The side shield 322 pivots around the rotation center of the trimming unit 40. During the movement of the trimming unit 40, the side shield 322 pivots accordingly to always remain between the trimming unit 40 and the main cutting component 20. By setting the side shield 322 as a partial side shield, the impact of the side shield 322 on the operation of the trimming unit 40 can be reduced, improving the mowing effect of the trimming unit 40.

[0069] In some implementations of the embodiments, such as Figures 2 to 4 As shown, the lawnmower also includes a camera 50, which is mounted on the body 10. The second isolation unit 32 is configured such that when the trimming unit 40 is in operating mode and / or corner cutting mode, the second isolation unit 32 is located between the trimming unit 40 and the camera 50. The second isolation unit 32 prevents grass clippings caused by the trimming unit 40 from flying into the camera 50, thus avoiding obstructing the camera 50's view.

[0070] It can be understood that, in combination with Figure 9 , Figure 10 As shown in the side shield 322 is a circumferential side shield trimming unit 40 is located in any position, the side shield 322 can shield trimming unit, to avoid the grass cut by trimming unit affect the main cutting assembly 20 and camera 50. In some other embodiments of the embodiment, the second isolation unit further comprises a second side shield different from the side shield 322 (partial side shield), the trimming unit 40 is located in the second working position, the second side shield is blocked between the trimming unit 40 and the camera 50, for avoiding the grass generated by the trimming unit 40 splashing on the camera 50, to avoid the influence of the grass on the camera 50 (image acquisition, visual identification, etc.).

[0071] In some embodiments of the embodiment, the body 10 has a first axis along the longitudinal direction, and the camera 50 is located on the first axis; when the trimming unit 40 works, the connecting line between the rotation center of the trimming unit 40 and the camera 50 forms a first center line, and the second isolation unit 32 is symmetrically arranged along the first center line. The camera 50 shoots the travel route of the mower or identifies the obstacles or indications on the travel route in the longitudinal direction. The second isolation unit 32 blocks the connecting line between the trimming unit 40 and the camera 50, avoiding the grass splashing from the trimming unit 40 to the camera 50.

[0072] In summary, the mower disclosed in the present application sets an isolation device between the main cutting assembly and the trimming unit, which blocks the cutting grass of the main cutting assembly and the cutting grass of the trimming unit from splashing each other, avoiding the influence of the splashing grass on the normal operation of the main cutting assembly and the trimming unit.

[0073] It should be noted that the above describes some embodiments. Other embodiments are within the scope of the appended claims. In some cases, the acts or steps recited in the claims can be performed in a different order than those described above and still achieve desirable results. In addition, the processes depicted in the figures do not necessarily require the particular order shown, or sequential order to achieve the desired results.

[0074] Those of ordinary skill in the art will understand that the above discussion of any embodiment is merely exemplary and is not intended to suggest the scope of the disclosure (including the claims) is limited to these examples; under the idea of the present disclosure, the above embodiments or technical features between different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the embodiments of the present disclosure as described above. In order to be brief, they are not provided in detail.

[0075] The present disclosure is intended to embrace all such alterations, modifications, and variations that fall within the scope of the appended claims. Accordingly, the application is to be construed as limited only by the scope of the appended claims and the reasonable equivalents thereof.

Claims

1. A lawnmower, characterized in that, include: body; A main cutting assembly, which is mounted on the machine body, has a first cutting area; A trimming unit is mounted on the machine body and has a second cutting area that is different from the first cutting area. An isolation device is disposed between the main cutting assembly and the trimming unit.

2. The lawnmower according to claim 1, characterized in that, The isolation device includes a first isolation unit disposed on the main cutting assembly, and / or a second isolation unit disposed on the trimming unit.

3. The lawnmower according to claim 1, characterized in that, The trimming unit reciprocates between the storage position, the first working position, and the second working position. When the trimming unit is in the storage position, it is at least partially located inside the body. The angle formed between the trimming unit in the storage position and the trimming unit in the first working position is an acute angle, and the angle formed between the trimming unit in the storage position and the trimming unit in the second working position is an obtuse angle.

4. The lawnmower according to claim 2, characterized in that, The first isolation unit includes: A first protective component is configured to connect with a cutter head guard. The first protective component is located on the side of the cutter head guard near the trimming unit. The first protective component is also configured such that when the trimming unit is in a first working position, the first protective component is located between the main cutting assembly and the trimming unit.

5. The lawnmower according to claim 4, characterized in that, The first protective component is configured as follows: When the lawnmower is in a horizontal position, the lower edge of the first protective member is lower than the height of the main cutting assembly.

6. The lawnmower according to claim 2, characterized in that, The first isolation unit includes: The second protective component is configured to be connected to the cutter head guard. The second protective component is located on the side of the cutter head guard near the trimming unit. The second protective component is also configured such that when the trimming unit is in the first working position, the second protective component is located between the cutter head motor and the trimming unit.

7. The lawnmower according to claim 2, characterized in that, The second isolation unit is configured as: a side shield connected to the trimming unit, the side shield being configured as follows: It rotates around the axis of rotation under the drive of the drive device; When the trimming unit is in the second working position, the side shield is located between the trimming unit and the main cutting assembly along the circumferential direction around the rotation axis; the distance from the ground of the lower edge of the side shield is smaller than the distance from the ground of the trimming unit.

8. The lawnmower according to claim 2, characterized in that, The lawnmower includes a camera, which is mounted on the body of the machine; the second isolation unit is configured as follows: When the trimming unit is in trimming mode and / or corner cutting mode, the second isolation unit is located between the trimming unit and the camera.

9. The lawnmower according to claim 8, characterized in that, The body has a first axis along its longitudinal direction, and the camera is located on the first axis. When the trimming unit is set to corner cutting mode, the rotation center of the trimming unit and the line connecting the camera form a first center line, and the second isolation unit is symmetrically arranged along the first center line.

10. The lawnmower according to any one of claims 1-9, characterized in that, The trimming unit includes a swing arm and a working head connected to each other. The swing arm is rotatably connected to the machine body, and the swing arm drives the working head to reciprocate between a storage position, a first working position, and a second working position.

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