Grass mowing module and courtyard robot

Abstract

The utility model discloses a grass mowing module and a courtyard robot, and the grass mowing module comprises a connecting structure; one end of the swing arm is movably connected with the connecting structure; the grass mowing structure comprises a mounting disc and a grass mowing rope, the mounting disc is fixedly connected with the other end of the swing arm, and the grass mowing rope is arranged on the side, close to the ground, of the mounting disc. According to the scheme, the connecting structure arranged in the grass mowing module is connected with the courtyard robot body, the swing arm arranged in the grass mowing module can drive the grass mowing structure to swing within a certain range, then when the courtyard robot works, grass in the boundary area is mowed through the grass mowing rope in the grass mowing structure, and the grass mowing efficiency is improved. Even if the installation disc in the grass mowing structure collides with an obstacle on the edge, the swing arm arranged in the grass mowing module can also drive the grass mowing structure to conduct grass mowing treatment in other areas, and therefore the grass mowing effect of the courtyard robot provided with the grass mowing module at present on the boundary area can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of garden robot grass cutting technology, and in particular to a grass cutting module and a garden robot. Background Technology

[0002] Lawn-mowing robots, as automated tools designed specifically for yards, can autonomously perform lawn-mowing tasks within a pre-defined area. However, a significant limitation of existing lawn-mowing robots is that their cutting devices are typically mounted on the bottom of the machine. This design makes it difficult for the robot to effectively mow near the yard's boundaries, especially when there are obstacles such as walls or flower bed edges, significantly increasing the difficulty. Therefore, current lawn-mowing robots are clearly insufficient in ensuring a uniform and thorough mowing effect across the entire yard area.

[0003] Therefore, those skilled in the art urgently need to find a new technical solution to address the above problems. Utility Model Content

[0004] This utility model aims to provide a mowing module and a yard robot, which can solve the technical problem that the existing technology has obvious shortcomings in terms of uniform and thorough mowing effect in yard areas.

[0005] The technical problem solved by this utility model embodiment is addressed by the following technical solution:

[0006] This application discloses a grass-cutting module, which includes:

[0007] Connection structure;

[0008] A swing arm, one end of which is movably connected to the connecting structure;

[0009] The grass-cutting structure includes a mounting plate and a grass-cutting rope. The mounting plate is fixedly connected to the other end of the swing arm, and the grass-cutting rope is located on the side of the mounting plate close to the ground.

[0010] Optionally, the connection structure includes a first connector, a second connector, and a movable component. The movable component is disposed between the first connector and the second connector. The first connector is fixedly connected to the movable component. One end of the second connector is movably connected to the movable component, and the other end of the second connector is movably connected to the swing arm.

[0011] Optionally, a first buffer member is provided at the first connection gap between the first connector and the second connector, and a second buffer member is provided at the second connection gap between the first connector and the second connector, located on the movable part.

[0012] Optionally, the second buffer member is provided with a spring member; when the second buffer member is pressed by the second connecting member, the spring member is compressed.

[0013] Optionally, a first detection element is provided at the bottom of the movable component, and an angle detection sensor is provided near the bottom of the second connecting component. The first detection element and the angle detection sensor are used to determine the swing range of the swing arm.

[0014] Optionally, an installation detection sensor is provided at the installation position of the first connector near the body of the garden robot, and a second detection element is provided at the position of the body relative to the installation detection sensor. The second detection element and the installation detection sensor are used to determine whether the mowing module is installed in place on the body.

[0015] Optionally, the swing arm includes a connector and a connecting hole, the connecting hole being disposed through the side of the swing arm, and the connector being disposed through the interior of the connecting hole.

[0016] Optionally, the swing arm includes a connector and a connecting hole, the connecting hole being disposed through the side of the swing arm, and the connector being disposed through the interior of the connecting hole.

[0017] Optionally, the connector includes a first connector and a second connector. After the first connector and the second connector are inserted into the connecting holes at different positions, the first connector and the second connector are fixed by being sleeved by an elastic member.

[0018] Optionally, the swing arm includes a snap-fit ​​groove and a snap-fit ​​member. The snap-fit ​​groove is disposed on the end side of the swing arm, and the snap-fit ​​member is inserted into the snap-fit ​​groove and snapped into the snap-fit ​​groove.

[0019] This application discloses a garden robot, including a mowing module, a front end, and a body. The front end is detachably connected to the body, and the mowing module is fixedly connected to the body via a connecting structure. The mowing module protrudes relative to the body and the front end.

[0020] The aforementioned lawn mowing module and garden robot include: a connecting structure; a swing arm, one end of which is movably connected to the connecting structure; and a mowing structure comprising a mounting plate and a mowing rope. The mounting plate is fixedly connected to the other end of the swing arm, and the mowing rope is disposed on the side of the mounting plate near the ground. This solution connects the lawn mowing module to the garden robot body via the connecting structure. The swing arm in the lawn mowing module can drive the mowing structure to swing within a certain range. When the garden robot is working, the mowing rope in the mowing structure mows the grass in the boundary area. Even if the mounting plate in the mowing structure collides with an obstacle at the edge, the swing arm in the lawn mowing module can first move the mowing structure away from the obstacle before continuing to mow the grass in the boundary area. This ensures the effective mowing of the lawn in the boundary area by the garden robot equipped with the lawn mowing module. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the mowing module disclosed in this application;

[0023] Figure 2 This is an exploded view of an embodiment of the mowing module disclosed in this application.

[0024] Figure 3 This is a schematic diagram of the structure of an embodiment of the mowing module disclosed in this application;

[0025] Figure 4 This is an exploded structural diagram of an embodiment of the mowing module disclosed in this application.

[0026] Figure 5 This is a schematic diagram of an embodiment of the second buffer in the haymaking module disclosed in this application.

[0027] Figure 6 This is a schematic diagram of the structure of an embodiment of a garden robot containing the mowing module disclosed in this application.

[0028] The attached icon numbers and their corresponding meanings are as follows:

[0029] 1. Connecting structure; 101. First connecting piece; 102. Second connecting piece; 103. Movable part; 104. First connecting gap; 105. First buffer piece; 106. Second connecting gap; 107. Second buffer piece; 2. Swing arm; 201. Connector; 2011. First connector; 2012. Second connector; 202. Snap-fit ​​groove; 203. Snap-fit ​​piece; 3. Grass trimming structure; 301. Mounting plate; 302. Grass trimming rope; 4. First detection piece; 5. Angle detection sensor; 6. Motor; 7. Garden robot; 8. Grass trimming module; 9. Body; 10. Mounting detection sensor. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," and "horizontal," etc., used in this specification to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Words such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections but can include electrical connections, whether direct or indirect. Unless otherwise defined, the features such as "parallel," "perpendicular," and "identical" used in the embodiments of this utility model include strictly defined "parallel," "perpendicular," and "identical," as well as cases where "approximately parallel," "approximately perpendicular," and "approximately identical" include a certain degree of error. For example, the aforementioned "approximately" may indicate that the difference between the compared objects is within 10% or 5% of the average value of the compared objects. Unless otherwise specified in the following embodiments of this utility model, the quantity of a component or element is implied; it means that the component or element may be one or more, or can be understood as at least one. "At least one" means one or more, and "more" means at least two.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0034] like Figures 1 to 6 As shown in the embodiment of this application, a mowing module 8 includes:

[0035] Connection structure 1;

[0036] Swing arm 2, one end of which is movably connected to the connecting structure 1;

[0037] The grass-cutting structure 3 includes a mounting plate 301 and a grass-cutting rope 302. The mounting plate 301 is fixedly connected to the other end of the swing arm 2, and the grass-cutting rope 302 is disposed on the side of the mounting plate 301 close to the ground.

[0038] The connecting structure 1 includes multiple interconnected connectors, each with a corresponding connection position, including a connection position for connecting to the body of the self-moving device and a connection position for connecting to the swing arm 2. The swing arm 2 extends downward along its length and can swing within a specified range, such as 0-90 degrees (the swing direction is from the side of the body 9 of the garden robot 7 to the front of the body 9 of the garden robot 7). The structure at its end can be movably connected to the connecting structure 1. The grass-cutting structure 3 can be configured as a circular mounting plate 301 structure. The upper end of the mounting plate 301 structure is equipped with a motor 6, and the lower end of the circular structure is equipped with a grass-cutting rope 302. The motor 6 and the grass-cutting rope 302 are movably connected through a base and a winding component (the winding component is used to wind the grass-cutting rope 302, which is placed in the base and connected to the drive shaft in the motor 6). The motor 6 can drive the grass-cutting rope 302 to rotate around the central axis, and the grass-cutting rope 302 can generate the power to cut or trim grass.

[0039] In this embodiment, the grass cutting module 8 is connected to the body 9 of the garden robot 7 via the connecting structure 1. The swing arm 2 in the grass cutting module 8 can drive the grass cutting structure 3 to swing within a certain range. When the garden robot 7 is working, the grass cutting rope 302 in the grass cutting structure 3 cuts the grass in the boundary area. Even if the mounting plate 301 in the grass cutting structure 3 collides with the edge obstacle, the swing arm 2 in the grass cutting module 8 can drive the grass cutting structure 3 away from the obstacle first, and then drive the grass cutting structure 3 to cut the grass in the boundary area. In this way, the grass cutting effect of the garden robot 7 equipped with the grass cutting module 8 in the boundary area can be guaranteed.

[0040] like Figure 2 As shown, in one embodiment, the connection structure 1 includes a first connector 101, a second connector 102, and a movable member 103. The movable member 103 is disposed between the first connector 101 and the second connector 102. The first connector 101 is fixedly connected to the movable member 103. One end of the second connector 102 is movably connected to the movable member 103, and the other end of the second connector 102 is movably connected to the swing arm 2.

[0041] In this connection structure 1, different components have different connection positions. The first connector 101 can be fixedly connected to the bracket structure on the body 9 of the garden robot 7 through its connection position. The first connector 101 includes a connecting column and a connecting block. One end of the connecting column is fixedly connected to the connecting block, and the other end of the connecting column is fixedly connected to the body 9 of the garden robot 7. The end face of the connecting block is provided with a connection position, which can be fixedly connected to the body 9 of the garden robot 7. At the same time, the connecting block can be set to a hollow state to prevent the circuit board related to the grass trimming module 8 from being blocked. The second connector 10 2 may include a first connecting frame and a second connecting frame, which are fixedly connected. The first connecting frame has an installation space, and one end of the movable member 103 is movably connected to the first connecting frame through the installation space (after the movable member 103 is embedded in the installation space, the fixing member in the mounting frame can penetrate the connection position on the movable member 103 from top to bottom). The second connecting frame is fixedly connected to the swing arm 2. The movable member 103 may have two movable ends, one of which is movably connected to one end of the second connecting member 102, and the other movable end is fixedly connected to one end of the first connecting member 101.

[0042] In this embodiment, one end of the second connector 102 is movably connected to the movable member 103, so that the second connector 102 has a certain degree of flexibility relative to the first connector 101 and the movable member 103, thereby allowing the swing arm 2 connected to the second connector 102 to swing within a certain swing range; the first connector 101 is fixedly connected to the movable member 103. This connection method ensures the stability and reliability of the entire swing structure. When subjected to load or external force, this fixed connection can effectively prevent the connection from loosening or failing.

[0043] like Figure 2 As shown, in one embodiment, a first buffer 105 located on the movable member 103 is provided at the first connection gap 104 between the first connector 101 and the second connector 102, and a second buffer 107 located on the movable member 103 is provided at the second connection gap 106 between the first connector 101 and the second connector 102.

[0044] Wherein, the first connecting gap 104 between the first connecting member 101 and the second connecting member 102 corresponds to the first position on the movable member 103, and the second connecting gap 106 between the first connecting member 101 and the second connecting member 102 corresponds to the second position on the movable member 103. Each position is provided with a buffer. When the swing arm 2 swings, the first buffer 105 can be used to prevent the second connecting member 102 from colliding with the movable member 103 at the first position, and the second buffer 107 can be used to prevent the second connecting member 102 from colliding with the movable member 103 at the second position.

[0045] In this embodiment, the swing arm 2 can swing within a certain range. The first buffer 105 and the second buffer 107 can effectively absorb and disperse the impact force, reduce the stress and deformation at the connection gap, thereby protecting the connector and the moving part 103 from damage. The buffer can also play a shock absorption role, reducing the vibration and noise generated by the moving part 103 during the movement, and improving the stability and comfort of the overall structure.

[0046] like Figure 1 and Figure 5 As shown, in one embodiment, the second buffer 107 is provided with a spring; when the second buffer 107 is pressed by the second connecting member 102, the spring is compressed.

[0047] The second buffer 107 includes a receiving seat and a contact member disposed on the first connecting member 101. The contact member may have a hollow design inside, and a spring member may be embedded inside. The spring member can be accommodated in the receiving seat. The design of the spring member allows the second buffer 107 to have a certain travel distance. Thus, when the second buffer 107 is squeezed by the second connecting member 102, the spring in the second buffer 107 is compressed inward. When the external force applied to the second buffer 107 disappears, the spring in the second buffer 107 returns to its original deformation.

[0048] In this embodiment, the spring in the second buffer 107 can absorb a large amount of impact energy during the compression process, thereby effectively reducing the direct impact of the second connector 102 on the second buffer 107 and protecting the integrity of the second connector 102.

[0049] like Figure 4 As shown, in one embodiment, a first detection element 4 is provided at the bottom of the movable member 103, and an angle detection sensor 5 is provided on the second connecting member 102 near the bottom of the movable member. The first detection element 4 and the angle detection sensor 5 are used to determine the swing range of the swing arm 2.

[0050] The angle detection sensor 5 can be a sensor in a magnetic encoder, and the first detection element 4 can be a disk. A sensor is installed on the second connector 102 connected to the swing arm 2. When the swing arm 2 rotates, the sensor in the magnetic encoder (such as a Hall sensor or a magnetoresistive sensor) can detect the change in the magnetic field on the disk in a fixed state. As the swing arm 2 rotates, the magnetic field signal received by the sensor will also change. Thus, the bottom of the movable part 103 is provided with an angle detection sensor 5, and the first connector 101 is provided with a detection element. After the swing arm 2 is hit by an obstacle, the swing arm 2 moves inward (away from the obstacle). The detection element in the second connector 102 and the installed detection sensor 10 generate a Hall effect, which can then feed back the collision information to the controller in the garden robot 7.

[0051] like Figure 4 As shown, in one embodiment, the first connector 101 is provided with an installation detection sensor 10 near the installation position of the vehicle body 9, and the vehicle body 9 is provided with a second detection element (not shown) at a position relative to the installation detection sensor 10. The second detection element (not shown) and the installation detection sensor 10 are used to determine whether the mowing module 8 is installed in place on the vehicle body 9.

[0052] Among them, the installed detection sensor 10 can be a Hall sensor, and the second detection element (not shown) can be a magnet. The Hall sensor is used to detect the presence or intensity of the magnetic field. When current passes through a conductor and is placed in a magnetic field, a potential difference will be generated on both sides of the conductor. This potential difference is proportional to the magnetic field strength, and can accurately sense the presence and intensity of the magnetic field. Thus, by installing the detection sensor 10 and the second detection element (not shown), it can be determined whether the grass trimming module 8 is installed on the vehicle body 9 and whether it is properly installed on the vehicle body 9.

[0053] like Figure 2 As shown, in one embodiment, the swing arm 2 includes a connector 201 and a connecting hole (not shown). The connecting hole is disposed through the side of the swing arm 2, and the connector 201 is disposed through the interior of the connecting hole.

[0054] The swing arm 2 may be provided with multiple connecting holes, which are provided through the swing arm 2. The connecting holes are arranged at different heights along the swing arm. The plug-in 201 may be a pin, bolt or other component with the same function. The plug-in component can be adapted to be plugged into the connecting hole.

[0055] In this embodiment, the design of the connector 201 and the connection hole makes the connection between components quick and simple. The connector 201 and the connection hole usually have a tight tolerance fit, which ensures that there will be no loosening or displacement between the connected components, thus improving the stability of the connection.

[0056] like Figure 2 As shown, in one embodiment, the connector 201 includes a first connector 2011 and a second connector 2012. After the first connector 2011 and the second connector 2012 are inserted into the connecting holes at different positions, the first connector 2011 and the second connector 2012 are fixed by being sleeved by an elastic member.

[0057] Wherein, the connecting hole on the swing arm 2 does not need to be fully inserted into the plug 201. The plug 201 may include a first plug 2011 and a second plug 2012. The first plug 2011 and the second plug 2012 can be connected in a vertical position (high and low position). The elastic element may be a spring or other components. The two ends of the spring can be respectively sleeved on the ends of the first plug 2011 and the second plug 2012. Specifically, the first plug 2011 and the second plug 2012 are equivalent to the connecting hole passing through. The elastic element can be sleeved on the same end of the first plug 2011 and the second plug 2012 that protrudes from the connecting hole.

[0058] In this embodiment, after the connector 201 is inserted into the connecting hole on the swing arm 2, the connector is sleeved by the elastic element. The elastic element can ensure the stability of the connector on the swing arm 2, thereby ensuring the stability of the swing arm 2 in the left and right swing range and preventing it from easily falling off.

[0059] like Figure 2 As shown, in one embodiment, the swing arm 2 includes a snap-fit ​​groove 202 and a snap-fit ​​member 203. The snap-fit ​​groove 202 is disposed on the end side of the swing arm 2, and the snap-fit ​​member 203 is inserted into the snap-fit ​​groove 202 and snaps into the snap-fit ​​groove 202.

[0060] At least one snap-fit ​​groove 202 is provided on the end face of the swing arm 2. The groove structure of the snap-fit ​​groove 202 can restrict the position of the snap-fit ​​member 203. The snap-fit ​​member 203 can select at least one snap-fit ​​groove 202 for snap-fit ​​(the snap-fit ​​member 203 can slide to select one of the snap-fit ​​grooves 202 for snap-fit). Figure 1 The diagram shows the position of one of the snap-fit ​​components 203, and the other diagrams also show the possible positions of the snap-fit ​​components 203. The different snap-fit ​​slots 202 are distributed at different heights on the swing arm 2 and can be designed to be continuous. In this way, after the snap-fit ​​component 203 is snapped into the snap-fit ​​slots 202 at different heights, the vertical floating distance of the lever arm relative to the ground can be limited.

[0061] like Figure 2 As shown, in one embodiment, the mowing structure 3 further includes a motor 6, the drive shaft of which passes through the center of the mounting plate 301, and the drive shaft is rotatably connected to the mowing rope 302.

[0062] The motor 6 is located above the mounting plate 301. A protective shell can be provided around the motor 6 (at the end of the swing arm 2). The drive shaft of the motor 6 can pass through the center of the mounting plate 301 and rotatably connect with the connection of the grass trimming rope 302. The grass trimming rope 302 in the mounting plate 301 can rotate under the drive of the motor 6. The grass trimming structure 3 also includes a blocking member, which is arranged around the side of the mounting plate 301 and can be used to prevent the debris generated by the grass trimming rope 302 during operation from splashing.

[0063] like Figure 6 As shown in the figure, a garden robot 7 disclosed in this application includes a mowing module 8, a front (not shown) and a body 9. The front (not shown) is detachably connected to the body 9. The mowing module 8 is fixedly connected to the body 9 through a connecting structure 1. The mowing module 8 protrudes relative to the body 9 and the front (not shown).

[0064] Among them, the front of the garden robot 7 (not shown) and the body 9 can be connected by a detachable structure. The front of the robot (not shown) can be set in the forward direction of the body 9, and the grass trimming module 8 can be set in the rear of the body 9. The grass trimming module 8 is protruding relative to the body 9 and the front of the robot (not shown), which is beneficial for the grass trimming module 8 to trim the grass in the boundary area. The connecting structure 1 in the grass trimming module 8 can be connected to the mounting bracket of the body 9.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above, which are not provided in detail for the sake of brevity; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mowing module, characterized in that, include: Connection structure; A swing arm, one end of which is movably connected to the connecting structure; A grass-cutting structure, comprising a mounting plate and a grass-cutting rope, wherein the mounting plate is fixedly connected to the other end of the swing arm, and the grass-cutting rope is disposed on the side of the mounting plate closer to the ground; The connection structure includes a first connector and a second connector, with the two ends of the second connector being movably connected to the first connector and the swing arm, respectively.

2. The mowing module according to claim 1, characterized in that, The connection structure further includes a movable component, which is disposed between the first connecting component and the second connecting component. The first connecting component is fixedly connected to the movable component, one end of the second connecting component is movably connected to the movable component, and the other end of the second connecting component is movably connected to the swing arm.

3. The mowing module according to claim 2, characterized in that, A first buffer member is provided at the first connection gap between the first connector and the second connector, and a second buffer member is provided at the second connection gap between the first connector and the second connector, located on the movable part.

4. The mowing module according to claim 3, characterized in that, The second buffer is provided with a spring; when the second buffer is pressed by the second connecting member, the spring is compressed.

5. The mowing module according to claim 3, characterized in that, A first detection element is provided at the bottom of the movable component, and an angle detection sensor is provided near the bottom of the second connecting component. The first detection element and the angle detection sensor are used to determine the swing range of the swing arm.

6. The mowing module according to claim 2, characterized in that, An installation detection sensor is provided at the mounting position of the first connector near the body of the garden robot. A second detection component is provided at the position of the body relative to the installation detection sensor. The second detection component and the installation detection sensor are used to determine whether the mowing module is installed in place on the body.

7. The mowing module according to claim 1, characterized in that, The swing arm includes a connector and a connecting hole. The connecting hole is disposed through the side of the swing arm, and the connector is disposed through the interior of the connecting hole.

8. The mowing module according to claim 7, characterized in that, The connector includes a first connector and a second connector. After the first connector and the second connector are inserted into the connecting holes at different positions, the first connector and the second connector are fixed by being sleeved by an elastic element.

9. The mowing module according to claim 1, characterized in that, The swing arm includes a snap-fit ​​groove and a snap-fit ​​component. The snap-fit ​​groove is located on the end side of the swing arm, and the snap-fit ​​component is inserted into the snap-fit ​​groove and snaps into the snap-fit ​​groove.

10. A garden robot, characterized in that, Includes a mowing module as described in any one of claims 1 to 9, a front end and a body, wherein the front end and the body are detachably connected, the mowing module is fixedly connected to the body via a connecting structure, and the mowing module protrudes relative to the body and the front end.

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