Cutting assembly, cutting mechanism and self-moving device

Abstract

The application provides a cutting assembly, a cutting mechanism and a self-moving device, relates to the technical field of lawn mowers, and is used for solving the problem of limited cutting range of the existing lawn mowers. The cutting assembly comprises a mounting seat, an adjusting piece and a cutting rope. The adjusting piece is arranged on the mounting seat. The cutting rope has a first end and a second end. The first end of the cutting rope is connected with the adjusting piece. The cutting rope is configured to be capable of extending or retracting relative to the adjusting piece, so as to adjust the length of the second end of the cutting rope extending out of the mounting seat and change the cutting range. The lawn mower can be installed on the lawn mower for mowing.

Description

Technical Field

[0001] This application relates to the field of lawnmower technology, and more particularly to a cutting component, cutting mechanism and self-moving device. Background Technology

[0002] During the mowing process, the cutting edge of the blade is kept a distance from the outer edge of the cutter to prevent accidental contact between the blade and the user. However, because the blade does not extend to the outer edge of the cutter, the cutting range is limited. The blade cannot cut grass very close to the wall, requiring additional manual cutting. Summary of the Invention

[0003] This application provides a cutting component, a cutting mechanism, and a self-moving device to solve the problem of limited cutting range in existing lawnmowers.

[0004] In a first aspect, this application provides a cutting assembly, including a mounting base, an adjusting member, and a cutting rope. The adjusting member is disposed on the mounting base. The cutting rope has a first end and a second end. The first end of the cutting rope is connected to the adjusting member. The cutting rope is configured to extend or retract relative to the adjusting member to adjust the length of the second end of the cutting rope extending beyond the mounting base, thereby changing the cutting range.

[0005] The cutting assembly provided in this application has an adjusting member mounted on a mounting base, which provides a mounting position for the adjusting member. The first end of the cutting rope is connected to the adjusting member. During cutting operations, the cutting rope can be used for cutting. Since the cutting rope can extend or retract relative to the adjusting member, and the length of the second end of the cutting rope extending beyond the mounting base is adjustable, the cutting range that can be achieved when the cutting rope rotates can be changed, allowing the cutting rope to adjust the cutting range for different positions and improving cutting efficiency.

[0006] In some embodiments, the mounting base has a sidewall and a top wall. The sidewall is disposed around the top wall. The top wall has a first mounting groove, the groove wall of which has a first clearance hole that extends through the sidewall. A portion of the cutting rope is located within the first mounting groove, and a second end of the cutting rope passes through the first clearance hole.

[0007] In some embodiments, the top wall further has a second mounting groove. The adjusting member is located within the second mounting groove. The first mounting groove also has a second clearance hole in its groove wall. The second clearance hole penetrates the groove wall of the first mounting groove and communicates with the second mounting groove. The first end of the cutting rope passes through the second clearance hole.

[0008] In some embodiments, the adjusting member includes an elastic element. The elastic element is used to generate a spring force that causes the cutting rope to move toward the elastic element.

[0009] In some embodiments, the cutting assembly further includes a first limiting portion. The first limiting portion is connected to the cutting rope and is located between a first end and a second end of the cutting rope, within a first mounting groove. A portion of the first limiting portion is offset from a first clearance hole.

[0010] In some embodiments, the first mounting groove includes a first groove wall and a second groove wall disposed opposite to each other. A first clearance hole penetrates through the first groove wall. The first groove wall has a first groove surface, a second groove surface, and a third groove surface, which are arranged sequentially along a first direction. The first groove surface is located on the side of the third groove surface away from the second groove wall, and the third groove surface is located on the side of the second groove surface away from the second groove wall. The first direction is parallel to the bottom of the first mounting groove and perpendicular to the arrangement direction of the first and second groove walls.

[0011] In some embodiments, the second groove surface includes a first sub-groove surface, a second sub-groove surface, and a third sub-groove surface. Along a first direction, the second sub-groove surface is located on one side of the first sub-groove surface. The second sub-groove surface is inclined. A first end of the second sub-groove surface is connected to one end of the first sub-groove surface, and a second end of the second sub-groove surface is located on the side of the first end of the second sub-groove surface away from the second groove wall. Along the first direction, the third sub-groove surface is located on the side of the first sub-groove surface away from the second sub-groove surface. The third sub-groove surface is inclined. A first end of the third sub-groove surface is connected to the first sub-groove surface, and a second end of the third sub-groove surface is located on the side of the first end of the third sub-groove surface away from the second groove wall.

[0012] In some embodiments, the cutting assembly further includes a second limiting portion. The second limiting portion is connected to a second end of the cutting rope. When the second limiting portion abuts against the sidewall, a portion of the second limiting portion is offset from the first clearance hole.

[0013] In some embodiments, when the first limiting part abuts against the groove wall of the first mounting groove on the side near the adjusting member, the second limiting part abuts against the side wall.

[0014] In some embodiments, the elastic element includes a coil spring. One end of the coil spring is connected to the mounting base, and the other end is connected to the cutting rope.

[0015] In some embodiments, there are two cutting ropes and two coil springs. One cutting rope is located on one side of the two coil springs and connected to the other end of one coil spring. The other cutting rope is located on the other side of the two coil springs and connected to the other end of the other coil spring.

[0016] In some embodiments, the cutting assembly further includes a snap-fit ​​portion. The snap-fit ​​portion connects to the mounting base and engages with a coil spring.

[0017] Secondly, this application provides a cutting mechanism, including any of the cutting components in the first aspect.

[0018] Since the cutting mechanism provided in this application includes any of the cutting components in the first aspect, it can solve the same technical problems as the cutting components and achieve the same technical effects, so it will not be described in detail here.

[0019] In some embodiments, the cutting mechanism further includes a motor mounting base and a drive motor. The drive motor is mounted on the motor mounting base. The output shaft of the drive motor is connected to the mounting base.

[0020] In some embodiments, the cutting mechanism further includes a connector and a protective member. One end of the connector is connected to the motor mount. The protective member is located on one side of the motor mount and is connected to the other end of the connector.

[0021] In some embodiments, one end of the connector is rotatably connected to the motor mounting base, and the axis of rotation is perpendicular to the axis of rotation of the output shaft of the drive motor.

[0022] In some embodiments, the connector is movably connected to the motor mounting base. The connector has a first position and a second position. When the connector is in the first position, the protective member is offset from the cutting rope along the extension direction of the cutting rope. When the connector is in the second position, the protective member is opposite to the cutting rope along the extension direction of the cutting rope.

[0023] Thirdly, this application provides a self-moving device, including any of the cutting mechanisms described in the second aspect.

[0024] Since the self-moving device provided in this application includes any of the cutting mechanisms in the second aspect, it can solve the same technical problems as the cutting mechanism and achieve the same technical effects, it will not be described in detail here. Attached Figure Description

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

[0026] Figure 1 This is a schematic diagram of the structure of a self-moving device provided in an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the structure of a cutting mechanism provided in an embodiment of this application;

[0028] Figure 3 A cross-sectional view of a self-moving device provided in an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the structure of a cutting component provided in an embodiment of this application;

[0030] Figure 5 This is a structural diagram showing the connector in its first position.

[0031] Figure 6 This is a schematic diagram of the structure when the drive motor is stopped.

[0032] Figure 7 A schematic diagram of the structure when the cutting rope is in another state;

[0033] Figure 8 A structural diagram showing the cutting rope in yet another state;

[0034] Figure 9 A bottom view of the self-moving device provided in the embodiments of this application;

[0035] Figure 10 for Figure 7 A magnified view of a portion of point A in the middle.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1000 - Self-moving device; 100 - Cutting mechanism; 10 - Cutting assembly; 11 - Mounting base; 111 - Top wall; 112 - Side wall; 113 - First mounting groove; 1131 - First groove wall; 1132 - Second groove wall; 1133 - First groove surface; 1134 - Second groove surface; 1135 - Third groove surface; 1136 - First sub-groove surface; 1137 - Second sub-groove surface; 1138 - Third sub-groove surface; 114 - 115 - First clearance hole; 12 - Second mounting slot; 13 - Adjusting component; 14 - Cutting rope; 15 - First limiting part; 16 - Second limiting part; 16 - Snap-fit ​​part; 161 - First snap-fit ​​part; 162 - Second snap-fit ​​part; 20 - Motor mounting base; 30 - Drive motor; 40 - Connecting component; 50 - Protective component; 200 - Drive mechanism; 210 - Connecting shaft; 220 - Roller; 300 - Equipment body; 400 - Operator. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0040] In the following description, the terms "first," "second," etc., are used for descriptive convenience only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0041] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly. For example, "connection" may be a fixed mechanical connection, a detachable mechanical connection, or an integral part; or, "connection" may be a direct connection or an indirect connection through an intermediate medium.

[0042] In this application, two components are "parallel" to each other, which can mean completely parallel or approximately parallel within a certain acceptable deviation range. Furthermore, two components are "perpendicular" to each other, which can mean completely perpendicular or approximately perpendicular within a certain acceptable deviation range. The aforementioned acceptable deviation range can be determined by the limitations of the measurement system used by those skilled in the art.

[0043] This application provides a self-moving device capable of autonomous walking. The specific type of the self-moving device is not specifically limited in this application. For example, the self-moving device could be a lawnmower robot.

[0044] The self-moving device provided in the embodiments of this application will be further described below, such as... Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a self-moving device 1000 provided in an embodiment of this application. The self-moving device 1000 may include a cutting mechanism 100, a driving mechanism 200, and a device body 300. The cutting mechanism 100 and the driving mechanism 200 may be mounted on the device body 300.

[0045] The drive mechanism 200 can drive the main body 300 to move, thereby enabling the self-moving device 1000 to walk. For example, as shown... Figure 1As shown, the drive mechanism 200 may include a connecting shaft 210 and multiple rollers 220. The connecting shaft 210 is connected to the device body 300, and a roller 220 is connected to each of its two ends.

[0046] The device can have two connecting shafts 210, and the arrangement direction of the two connecting shafts 210 is perpendicular to the extension direction of the connecting shafts 210. Thus, the rotation of the rollers 220 can drive the main body of the device 300 to move.

[0047] Continue to refer to Figure 1 The cutting mechanism 100 can be used to perform cutting functions, such as mowing grass. For example, the cutting mechanism 100 can be located between two connecting shafts 210, and along the extending direction of the connecting shafts 210, the cutting mechanism 100 is close to one side of the device body 300 and connected to the device body 300.

[0048] Therefore, when the mobile device 1000 is moving, the cutting mechanism 100 can cut the grass it passes by during the movement.

[0049] It is understood that the self-moving device 1000 provided in this application embodiment may also include other components, which can be designed according to actual conditions, and this application does not make further limitations.

[0050] The cutting mechanism 100 provided in the embodiments of this application will be further described below, such as... Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of a cutting mechanism 100 provided in an embodiment of this application. In some embodiments, the cutting mechanism 100 may include a cutting component 10, a motor mounting base 20, and a drive motor 30. The motor mounting base 20 may be mounted on the main body 300 of the device.

[0051] The drive motor 30 can be mounted on the motor mounting base 20, and the output shaft of the drive motor 30 can be connected to the cutting assembly 10. Thus, the drive motor 30 can be mounted on the main body 300 of the equipment via the motor mounting base 20, and the cutting assembly 10 can move under the drive of the output shaft of the drive motor 30 to perform cutting in motion.

[0052] It is understandable that the specific structure of the motor mounting base 20 can be designed according to the actual situation, and will not be further explained here. In addition, the installation method of the drive motor 30 and the motor mounting base 20 can also be designed according to the actual situation.

[0053] To avoid accidental injury to the operator from the cutting component 10, in some embodiments, such as Figure 2As shown, the cutting mechanism 100 may further include a connector 40 and a protective member 50. One end of the connector 40 can be connected to the motor mounting base 20. The protective member 50 is located on one side of the motor mounting base 20 and is connected to the other end of the connector 40.

[0054] In this way, since the protective component 50 is located on one side of the motor mounting base 20, the protective component 50 can block the operator, thereby preventing the operator 400 from being accidentally injured by the cutting component 10 during operation.

[0055] For example, such as Figure 3 As shown, Figure 3 This is a cross-sectional view of a self-moving device 1000 provided in an embodiment of this application. The motor mounting base 20 can be installed below the device body 300. In this case, the protective member 50 can be located on the left side of the motor mounting base 20 and on the periphery of the device body 300. In this way, when the operator 400's feet are moving towards the position close to the motor mounting base 20, they can be blocked by the protective member 50, so that the operator 400's feet are kept at a safe distance from the cutting assembly 10.

[0056] like Figure 4 As shown, Figure 4 This is a schematic diagram of a cutting assembly 10 provided in an embodiment of this application. The cutting assembly 10 may include a mounting base 11, an adjusting member 12, and a cutting rope 13. The adjusting member 12 is disposed on the mounting base 11, and the mounting base 11 provides an installation position for the adjusting member 12. The cutting rope 13 has a first end and a second end. The first end of the cutting rope 13 is connected to the adjusting member 12. During cutting operations, the cutting rope 13 can be used for cutting.

[0057] For example, the output shaft of the drive motor 30 can be connected to the mounting base 11. During cutting, the drive motor 30 can drive the mounting base 11 to rotate, thereby driving the cutting rope 13 to rotate. During the rotation of the cutting rope 13, the cutting rope 13 can achieve the cutting effect by utilizing its own rotation.

[0058] The cutting rope 13 is configured to extend or retract relative to the adjusting member 12 to adjust the length of the second end of the cutting rope 13 extending out of the mounting base 11 and change the cutting range.

[0059] Based on this, since the cutting rope 13 can extend or retract relative to the adjusting member 12, the length of the second end of the cutting rope 13 extending out of the mounting base 11 can be adjusted, thereby changing the cutting range that the cutting rope 13 can cut when it rotates, so that the cutting rope 13 can adjust the cutting range for different positions and provide cutting efficiency.

[0060] For example, when cutting grass close to a wall, the second end of the cutting rope 13 can extend a longer distance beyond the mounting base 11, allowing it to cut the grass near the wall without additional manual cutting. When cutting grass close to the self-moving device 1000 or in areas easily accessible to the device, the second end of the cutting rope 13 can extend a shorter distance beyond the mounting base 11, reducing the cutting range. This ensures effective cutting while preventing accidental injury to the operator 400 due to an excessively large cutting area.

[0061] Furthermore, since the cutting rope 13 can extend or retract relative to the adjusting member 12, the cutting range can be adjusted by changing the extension length of the adjusting member 12. Thus, as... Figure 3 As shown, components such as the drive motor 30 and the motor mounting base 20 can be positioned relatively close to the main body 300 of the equipment, so that components such as the connector 40 and the protective component 50 are also relatively close to the main body 300 of the equipment, thereby reducing the overall maximum width of the self-moving device 1000.

[0062] In addition, for example, Figure 3 As shown, the drive motor 30 can be located below the main body 300 of the equipment. This allows the drive motor 30 to be housed inside the casing of the main body 300, preventing water ingress during rainy weather and eliminating the need for additional waterproof components. Furthermore, this design prevents grass clippings from entering the drive motor 30 and jamming the mechanical structure, thus avoiding mechanical failure.

[0063] In addition, the self-moving device 1000 may also include a sealing housing (not shown in the figure). The drive motor 30 and the motor mounting base 20 may be located inside the sealing housing, thereby achieving better sealing of components such as the drive motor 30.

[0064] As described above, the protective component 50 is located on one side of the motor mounting base 20. Therefore, in order to avoid the protective component 50 interfering with the cutting of the cutting rope 13, in some embodiments, the connector 40 can be movably connected to the motor mounting base 20.

[0065] The connector 40 can have a first position and a second position. When the connector 40 is in the first position, the protective member 50 is offset from the cutting rope 13 along the extension direction of the cutting rope 13. When the connector 40 is in the second position, the protective member 50 is opposite to the cutting rope 13 along the extension direction of the cutting rope 13.

[0066] Therefore, when the connector 40 is in the first position, the protective member 50 is offset from the cutting rope 13 along the extension direction of the cutting rope 13. When the cutting rope 13 is cutting, it will not be affected by the protective member 50. The cutting rope 13 can extend out of the outer side of the protective member 50 to cut the grass on the outer side of the protective member 50.

[0067] Conversely, when the connector 40 is in the second position, the protective member 50 is positioned opposite to the cutting rope 13 along the extension direction of the cutting rope 13. The cutting rope 13 can be located inside the protective member 50, and the protective member 50 can act as a barrier to prevent the operator 400 from entering the cutting range of the cutting rope 13.

[0068] For example, such as Figure 5 As shown, Figure 5 This is a schematic diagram of the structure when the connector 40 is in the first position. The cutting rope 13 and the protective member 50 are arranged in the left-right direction as shown in the figure, with the side of the protective member 50 away from the cutting rope 13 being the outer side. At this time, the protective member 50 is located above the cutting rope 13. In this way, when the connector 40 is in the first position, the cutting rope 13 can extend to the outside of the protective member 50 to make the cut.

[0069] Conversely, such as Figure 2 and Figure 6 As shown, Figure 6 This is a schematic diagram of the structure when the drive motor 30 is stopped. The cutting rope 13 is arranged opposite each other in the left and right directions. The cutting of the cutting rope 13 is affected by the protective member 50, and it cannot extend outside the cutting rope 13 to cut. At this time, the cutting rope 13 is inside the protective member 50, and the protective member 50 can play a good protective role, preventing the operator 400 from entering the cutting range of the cutting rope 13.

[0070] In some embodiments, one end of the connector 40 can be rotatably connected to the motor mounting base 20, and the axis of rotation is perpendicular to the axis of rotation of the output shaft of the drive motor 30. Thus, the position of the protective member 50 can be adjusted by rotating the connector 40. Simultaneously, since the axis of rotation of the connector 40 is perpendicular to the axis of rotation of the drive motor 30, and the cutting plane of the cutting rope 13 is perpendicular to the axis of rotation of the drive motor 30, rotation allows the protective member 50 to be offset from or positioned opposite the cutting rope 13.

[0071] For example, such as Figure 5 As shown, the rotation axis of the drive motor 30 is in the vertical direction, and the cutting plane of the cutting rope 13 is perpendicular to the vertical direction. At this time, since the rotation axis of the connector 40 is perpendicular to the rotation axis of the output shaft of the drive motor 30, and the rotation axis of the connector 40 is in the front-back direction, the other end of the connector 40 can be adjusted in the vertical direction to achieve a relative or offset setting with the cutting rope 13.

[0072] Of course, the connector 40 can also be movably connected to the motor mounting base 20 in other ways. For example, in some embodiments, the connector 40 can be slidably connected to the mounting base 11, and the sliding direction can be parallel to the rotation axis of the output shaft of the drive motor 30. In this way, the position of the protective member 50 can also be adjusted by sliding the connector 40, so as to achieve a relative or staggered arrangement between the protective member 50 and the cutting rope 13.

[0073] For example, refer to Figure 5 The rotation axis of the drive motor 30 is in the vertical direction, and the cutting plane of the cutting rope 13 is perpendicular to the vertical direction. If the connector 40 is slidably connected to the motor mounting base 20, and the sliding direction is also vertical, then the other end of the connector 40 can be adjusted in the vertical direction, thereby achieving a relative or staggered arrangement between the protective component 50 and the cutting rope 13.

[0074] based on Figure 5 As can be understood from the illustrated scheme, the specific implementation of the rotatable connection between the connector 40 and the motor mounting base 20 can be designed according to actual conditions, and is not further limited here. For example, such as... Figure 5 As shown, both the connector 40 and the motor mounting base 20 can be provided with connecting holes, and a rotatable connection can be achieved by passing the connecting shaft 210 through the connecting holes of the connector 40 and the motor mounting base 20.

[0075] Furthermore, it is understood that the specific shape and structure of the motor mounting base 20, the connector 40, and the protective component 50 can be designed according to actual conditions, and no further limitations are made here. For example, the motor mounting base 20 can be a U-shaped plate structure, and the protective component 50 can be an L-shaped plate structure. The number of connectors 40 can be two, with the two connectors 40 spaced apart, one end connected to the motor mounting base 20 and the other end connected to the protective component 50.

[0076] The cutting component 10 provided in the embodiments of this application will be further described below, such as... Figure 5 As shown, in some embodiments, the mounting base 11 has a side wall 112 and a top wall 111. The side wall 112 is arranged around the top wall 111. Exemplarily, the output shaft of the drive motor 30 can be connected to the top wall 111 of the mounting base 11.

[0077] The top wall 111 has a first mounting groove 113, and the groove wall of the first mounting groove 113 has a first clearance hole 114, which penetrates the side wall 112. A portion of the cutting rope 13 is located in the first mounting groove 113, and the second end of the cutting rope 13 passes through the first clearance hole 114.

[0078] Therefore, the first mounting groove 113 can provide an installation position for the cutting rope 13. Simultaneously, since the second end of the cutting rope 13 passes through the first clearance hole 114, the first clearance hole 114 can limit the movement of the cutting rope 13, preventing it from swinging freely during cutting. For example, as... Figure 5 As shown, the first clearance hole 114 can prevent the cutting rope 13 from swaying up and down during rotation, thus ensuring the cutting effect.

[0079] Of course, in other embodiments, the cutting rope 13 can also be limited in other ways, as long as it can achieve the limiting function. For example, the cutting rope 13 can also be disposed on the top wall 111, and the top wall 111 is designed with a limiting structure, through which the cutting rope 13 can be limited.

[0080] like Figure 4 As shown, in some embodiments, the top wall 111 also has a second mounting groove 115. The adjusting member 12 is located within the second mounting groove 115. The first mounting groove 113 also has a second clearance hole (not shown in the figure) in its groove wall. The second clearance hole penetrates the groove wall of the first mounting groove 113 and communicates with the second mounting groove 115. The first end of the cutting rope 13 passes through the second clearance hole.

[0081] Therefore, the second mounting slot 115 provides a mounting position for the adjusting member 12, preventing it from protruding from the mounting base 11 and reducing space occupation. Simultaneously, since the second clearance hole connects to the second mounting slot 115, the cutting rope 13 can extend into the second mounting slot 115 through the second clearance hole and connect with the adjusting member 12. Furthermore, the second clearance hole also provides a certain degree of restraint for the cutting rope 13, preventing it from swaying significantly in other directions during movement.

[0082] Of course, the adjusting member 12 can also be mounted on the mounting base 11 in other ways. For example, in some other embodiments, the adjusting member 12 can also be directly mounted on the top wall 111.

[0083] In order to allow the cutting rope 13 to extend or retract relative to the adjusting member 12, in some embodiments, the adjusting member 12 may include an elastic member. The elastic member may be used to generate a spring force that causes the cutting rope 13 to move toward the elastic member.

[0084] Therefore, the elastic element can generate elastic deformation, so that the cutting rope 13 can extend or retract using the elastic element. Adjusting the length of the second end of the cutting rope 13 extending out of the mounting base 11 changes the cutting range and achieves different cutting ranges for the cutting rope 13.

[0085] For example, when the cutting rope 13 rotates, the centrifugal force generated by the rotation of the cutting rope 13 can cause the elastic element to deform, thereby increasing the length of the cutting rope 13 extending out of the mounting base 11. When the cutting rope 13 stops rotating or the rotation speed decreases, the elasticity of the elastic element itself can cause the cutting rope 13 to retract toward the mounting base 11.

[0086] Of course, the adjusting member 12 may also enable the extension or retraction of the cutting rope 13 in other ways. For example, in some other embodiments, the adjusting member 12 may also include an adjusting mechanism. This adjusting mechanism can retract or extend the cutting rope 13 on the adjusting mechanism, thereby enabling the extension or retraction of the cutting rope 13 relative to the mounting base 11.

[0087] The specific form of the adjustment mechanism can be designed according to the actual situation, and no further limitation is made here. For example, the adjustment mechanism can be an adjustment shaft. By rotating the adjustment shaft, cutting ropes 13 of different lengths can be wound around the adjustment shaft, thereby achieving different extension lengths of the cutting ropes 13 relative to the mounting base 11, forming different cutting ranges.

[0088] It is understood that the specific form of the adjusting member 12 can be selected according to the actual situation, as long as the cutting rope 13 can extend or retract relative to the mounting base 11. The different forms of the adjusting member 12 are described as examples.

[0089] In some embodiments, such as Figure 4 As shown, the cutting assembly 10 may further include a first limiting portion 14. The first limiting portion 14 is connected to the cutting rope 13 and is located between the first end and the second end of the cutting rope 13, within the first mounting groove 113. A portion of the first limiting portion 14 is offset from the first clearance hole 114.

[0090] Therefore, the first limiting part 14 can play a limiting role. When the first limiting part 14 moves to the first clearance hole 114, since a part of the first limiting part 14 is misaligned with the first clearance hole 114, the first limiting part 14 cannot enter the first clearance hole 114, thereby limiting the excessive length of the cutting rope 13.

[0091] In some embodiments, a portion of the first limiting part 14 is also offset from the second clearance hole. In this way, when the first limiting part 14 moves to the second clearance hole, since a portion of the first limiting part 14 is offset from the second clearance hole, the first limiting part 14 cannot enter the second clearance hole, thereby limiting the length of the retracted cutting rope 13 from being too long.

[0092] In some embodiments, such as Figure 4As shown, the cutting assembly 10 may further include a second limiting portion 15. The second limiting portion 15 is connected to the second end of the cutting rope 13. The second limiting portion 15 is connected to the side wall 112 (…). Figure 5 When the object is in contact with the first clearance hole 114, a portion of the second limiting part 15 is offset from the first clearance hole 114.

[0093] In this way, the second limiting part 15 can act as a counterweight, and when the cutting rope 13 rotates, it can maintain a straight line as much as possible when it encounters grass, thus facilitating the cutting of grass.

[0094] Meanwhile, since a portion of the second limiting part 15 is offset from the first clearance hole 114 when it abuts against the side wall 112, the second limiting part 15 can also prevent the cutting rope 13 from being retracted too much and directly extending into the interior of the first clearance hole 114, thus preventing the cutting rope 13 from separating from the first clearance hole 114.

[0095] It is understood that the specific shape and material of the first limiting part 14 and the second limiting part 15 can be selected according to the actual situation. For example, the first limiting part 14 and the second limiting part 15 can be approximately cylindrical. At the same time, the materials of the first limiting part 14 and the second limiting part 15 can be made of materials with higher density, so that the first limiting part 14 and the second limiting part 15 can better drive the cutting rope 13 to move. For example, the first limiting part 14 and the second limiting part 15 can be made of metal.

[0096] In some embodiments, when the first limiting part 14 abuts against the groove wall of the first mounting groove 113 near the adjusting member 12, the second limiting part 15 abuts against the side wall 112. Thus, when the first limiting part 14 abuts against the groove wall of the first mounting groove 113 near the adjusting member 12, i.e. when the retracted length reaches its shortest point, the second limiting part 15 also abuts against the side wall 112. This avoids a gap between the second limiting part 15 and the side wall 112, preventing the second limiting part 15 from shaking and causing abnormal noise.

[0097] In some embodiments, such as Figure 7 As shown, Figure 7 This is a structural diagram showing the cutting rope 13 in another state. The first mounting groove 113 may include a first groove wall 1131 and a second groove wall 1132 disposed opposite to each other. A first clearance hole 114 penetrates the first groove wall 1131. The first groove wall 1131 has a first groove surface 1133, a second groove surface 1134, and a third groove surface 1135, which are arranged sequentially along a first direction X.

[0098] The first groove surface 1133 is located on the side of the third groove surface 1135 away from the second groove wall 1132, and the third groove surface 1135 is located on the side of the second groove surface 1134 away from the second groove wall 1132. The first direction X is parallel to the bottom of the first mounting groove 113 and perpendicular to the arrangement direction of the first groove wall 1131 and the second groove wall 1132.

[0099] Therefore, as Figure 7 As shown, the first mounting groove 113 can form grooves of varying depths, and the first limiting part 14 can form three different cutting states with the first groove surface 1133, the second groove surface 1134, and the third groove surface 1135. When the first limiting part 14 is positioned opposite the first groove surface 1133, the first limiting part 14 can extend into the first groove surface 1133 and abut against it. At this time, as... Figure 8 As shown, Figure 8 This is a structural diagram of the cutting rope 13 in another state, where the cutting rope 13 extends to its longest length and can cut the grass at the edge.

[0100] like Figure 7 As shown, when the first limiting part 14 is disposed opposite to the second groove surface 1134, the length of the cutting rope 13 is at its shortest, and the cutting rope 13 can be in a retracted state. For example, when the first limiting part 14 abuts against the second groove surface 1134, the second limiting part 15 can abut against the side wall 112 ( Figure 5 (The rope is in a retracted state, and the cutting rope 13 is in a retracted state.)

[0101] When the first limiting part 14 is disposed opposite to the third groove surface 1135, the first limiting part 14 can abut against the third groove surface 1135, such as Figure 4 As shown, the length of the cutting rope 13 is moderate, and the cutting rope 13 can be in a normal cutting state, but the cutting range is less than the length when the first limiting part 14 and the first groove surface 1133 are in contact.

[0102] based on Figure 7 In practical applications, the solution shown can be used to drive the mounting base 11 to rotate forward or backward by the drive motor 30, so that the second limiting part 15 abuts against different positions, thereby adjusting the cutting range of the cutting rope 13.

[0103] For example, such as Figure 7 As shown, when in the stopped state, the first limiting part 14 is positioned opposite to the second groove surface 1134. When the drive motor 30 ( Figure 5 ) drive the mounting base 11 along Figure 7 When rotated clockwise as shown, the first limiting part 14 moves towards the third groove surface 1135 under the action of inertia and abuts against the third groove surface 1135. The cutting rope 13 has a relatively small cutting range, achieving... Figure 4 The state shown. When the drive motor 30 drives the mounting base 11 along... Figure 7 When rotated counterclockwise as shown, the first limiting part 14 moves towards the first groove surface 1133 under the action of inertia and abuts against the first groove surface 1133. The cutting rope 13 has a relatively large cutting range, achieving... Figure 8 The state shown.

[0104] like Figure 9 As shown, Figure 9 A bottom view of the self-moving device 1000 provided in this application embodiment, based on Figure 7 In the illustrated scheme, the cutting mechanism 100 can have a first cutting radius R1 and a second cutting radius R2 when performing cutting. R2 is greater than R1. Therefore, when cutting at the edge is not required, the cutting radius of the cutting mechanism 100 can be R1. When cutting at the edge is required, the cutting radius of the cutting mechanism 100 can be R2.

[0105] Furthermore, based on Figure 7 In some embodiments of the scheme shown, the end of the torsion spring can be disposed opposite to the second groove surface 1134. In this way, when in the stopped state, the first limiting part 14 can be disposed opposite to the second groove surface 1134 under the action of the torsion spring, so that it can move in different directions during rotation.

[0106] Furthermore, it is understandable that, based on Figure 7 In the illustrated scheme, when the adjusting member 12 includes a torsion spring, the lengths of the cutting rope 13 extending are different when the first limiting part 14 abuts against the first groove surface 1133 and the third groove surface 1135. Therefore, to overcome the spring force of the torsion spring, when the rotation direction of the mounting base 11 is different, the rotation speed can be controlled to generate different magnitudes of centrifugal force between the first limiting part 14 and the cutting rope 13, so that the first limiting part 14 can abut against the first groove surface 1133 or the third groove surface 1135. For example, when the first limiting part 14 abuts against the first groove surface 1133, the rotation speed of the drive motor 30 is a first speed, and when the first limiting part 14 abuts against the third groove surface 1135, the rotation speed of the drive motor 30 can be a second speed. At this time, the first speed can be greater than the second speed.

[0107] Of course, the first rotational speed can also be the same as the second rotational speed. Specifically, when the drive motor 30 is running at the first rotational speed, the first limiting part 14 can abut against the first groove surface 1133. At this time, the centrifugal force generated by the first limiting part 14 abutting against the third groove surface 1135 is large enough to make the first limiting part 14 abut against the first groove surface 1133.

[0108] Of course, in other embodiments, the cutting rope 13 can also be controlled in other ways. As mentioned above, the adjusting member 12 may include an adjusting mechanism. The adjusting mechanism can retract or extend the cutting rope 13 on the adjusting mechanism, thereby enabling the cutting rope 13 to extend or retract relative to the mounting base 11 and achieving different cutting ranges.

[0109] In some embodiments, such as Figure 10 As shown, Figure 10 for Figure 7 A partial enlarged view at point A shows that the second groove surface 1134 may include a first sub-groove surface 1136, a second sub-groove surface 1137, and a third sub-groove surface 1138. Along the first direction X, the second sub-groove surface 1137 is located to one side of the first sub-groove surface 1136. The second sub-groove surface 1137 is inclined. The first end of the second sub-groove surface 1137 is connected to one end of the first sub-groove surface 1136, and the second end of the second sub-groove surface 1137 is located on the side of the second sub-groove surface 1137 away from the first end of the second sub-groove surface 1132.

[0110] Therefore, the second sub-groove surface 1137 can play a guiding role. When the first limiting part 14 moves from the first sub-groove surface 1136 to the second sub-groove surface 1137, the second sub-groove surface 1137 can make it easier for the first limiting part 14 to move towards the direction closer to the first groove surface 1133.

[0111] Along the first direction X, the third sub-slot surface 1138 is located on the side of the first sub-slot surface 1136 away from the second sub-slot surface 1137. The third sub-slot surface 1138 is inclined. The first end of the third sub-slot surface 1138 is connected to the first sub-slot surface 1136, and the second end of the third sub-slot surface 1138 is located on the side of the first end of the third sub-slot surface 1138 away from the second slot wall 1132.

[0112] Similarly, the third sub-groove surface 1138 can also serve as a guide. When the first limiting part 14 moves from the first sub-groove surface 1136 to the third sub-groove surface 1138, the third sub-groove surface 1138 can make it easier for the first limiting part 14 to move towards the direction closer to the third groove surface 1135.

[0113] Of course, in some other embodiments, the second groove surface 1134 may only include the first sub-groove surface 1136. In this case, the first limiting part 14 may first move along the extending direction of the first sub-groove surface 1136 past the first sub-groove surface 1136, and then move toward the direction close to the first groove surface 1133 or the third groove surface 1135.

[0114] In some embodiments, the elastic element includes a coil spring. One end of the coil spring is connected to the mounting base 11, and the other end is connected to the cutting rope 13. Thus, by coiling and uncoiling the coil spring, the cutting rope 13 can be extended or retracted relative to the mounting base 11.

[0115] Of course, the elastic element can also be of other types; for example, in some embodiments, the elastic element may also include a spring. In this case, the extension or retraction of the cutting rope 13 relative to the mounting base 11 can also be achieved by the stretching and contraction of the spring.

[0116] In some embodiments, such as Figure 8 As shown, there are two cutting ropes 13 and two coil springs. One cutting rope 13 is located on one side of the two coil springs and connected to the other end of one coil spring. The other cutting rope 13 is located on the other side of the two coil springs and connected to one end of the other coil spring. Thus, by extending or retracting the two cutting ropes 13 through the two coil springs, cutting can be performed using two cutting ropes 13, ensuring the cutting efficiency of the cutting process.

[0117] Of course, in some other embodiments, the number of cutting rope 13 and coil spring can also be single, which can be selected according to the actual situation. This is illustrated as an example.

[0118] In some embodiments, such as Figure 8 As shown, the two coil springs are alternately wound around the same axis. This allows the two coil springs to be wound together, saving space. Of course, in some other embodiments, the two coil springs can also be separately mounted on the mounting base 11.

[0119] To achieve the installation of the coil spring, in some embodiments, such as Figure 8 As shown, the cutting assembly 10 also includes a snap-fit ​​part 16. The snap-fit ​​part 16 is connected to the mounting base 11 and snaps into the coil spring. In this way, the coil spring can be mounted on the mounting base 11 through the snap-fit ​​part 16, thereby fixing the coil spring.

[0120] In some embodiments, the latching portion 16 may include a first latching portion 161. The first latching portion 161 includes a first sub-latching portion and two second sub-latching portions. The first sub-latching portion and the two second sub-latching portions are all connected to the bottom of the second mounting groove 115.

[0121] Two second sub-clamping portions can be located on one side of the first sub-clamping portion and connected to it, with the two second sub-clamping portions spaced apart. One end of the coil spring can be located between the two second sub-clamping portions 16. In this way, the first clamping portion 161 can form a U-shaped structure facing the groove wall of the second mounting groove 115, which can limit the end of the torsion spring, thereby realizing the clamping of the coil spring.

[0122] In some embodiments, the latching portion 16 may further include a second latching portion 162. The second latching portion 162 includes a third sub-latching portion and two fourth sub-latching portions. The third sub-latching portion is connected to the bottom of the second mounting groove 115.

[0123] Two fourth sub-clamping portions are located on the side of the third sub-clamping portion away from the bottom of the second mounting groove 115, and are connected to the third sub-clamping portion, with the two fourth sub-clamping portions spaced apart. A portion of the coil spring can be located between the two fourth sub-clamping portions. In this way, the second clamping portion 162 can form a U-shaped structure facing away from the bottom of the second mounting groove 115, which can limit the middle position of the torsion spring and realize the clamping of the coil spring.

[0124] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cutting assembly, characterized in that, include: Mounting base; An adjustment element is provided on the mounting base; A cutting rope has a first end and a second end; the first end of the cutting rope is connected to the adjusting member. as well as, The first limiting part is connected to the cutting rope; The cutting rope is configured to extend or retract relative to the adjusting member to adjust the length of the second end of the cutting rope extending out of the mounting base and change the cutting range. The mounting base has side walls and a top wall; the side walls are arranged around the top wall; The top wall has a first mounting groove; the groove wall of the first mounting groove is provided with a first clearance hole, and the first clearance hole penetrates the side wall; A portion of the cutting rope is located in the first mounting groove, and the second end of the cutting rope passes through the first clearance hole; the first limiting part is located between the first end and the second end of the cutting rope, and is located in the first mounting groove; a portion of the first limiting part is offset from the first clearance hole.

2. The cutting assembly according to claim 1, characterized in that, The top wall also has a second mounting groove; the adjusting member is located within the second mounting groove; The first mounting groove is further provided with a second clearance hole in its groove wall; the second clearance hole penetrates the groove wall of the first mounting groove and communicates with the second mounting groove; the first end of the cutting rope passes through the second clearance hole.

3. The cutting assembly according to claim 1, characterized in that, The adjusting element includes an elastic element; the elastic element is used to generate a spring force that causes the cutting rope to move toward the elastic element.

4. The cutting assembly according to any one of claims 1-3, characterized in that, The first mounting groove includes a first groove wall and a second groove wall disposed opposite to each other; the first clearance hole penetrates through the first groove wall; The first tank wall has a first tank surface, a second tank surface, and a third tank surface; the first tank surface, the second tank surface, and the third tank surface are arranged sequentially along a first direction; the first tank surface is located on the side of the third tank surface away from the second tank wall; the third tank surface is located on the side of the second tank surface away from the second tank wall. Wherein, the first direction is parallel to the bottom of the first mounting groove and perpendicular to the arrangement direction of the first groove wall and the second groove wall.

5. The cutting assembly according to claim 4, characterized in that, The second groove surface includes: First sub-slot surface; The second sub-slot surface, along the first direction, is located on one side of the first sub-slot surface; the second sub-slot surface is inclined; the first end of the second sub-slot surface is connected to one end of the first sub-slot surface, and the second end of the second sub-slot surface is located on the side of the first end of the second sub-slot surface away from the second slot wall; and, The third sub-slot surface, along the first direction, is located on the side of the first sub-slot surface away from the second sub-slot surface; the third sub-slot surface is inclined; the first end of the third sub-slot surface is connected to the first sub-slot surface, and the second end of the third sub-slot surface is located on the side of the first end of the third sub-slot surface away from the second tank wall.

6. The cutting assembly according to claim 1, characterized in that, The cutting assembly also includes: The second limiting part is connected to the second end of the cutting rope; wherein, when the second limiting part abuts against the side wall, a portion of the second limiting part is offset from the first clearance hole.

7. The cutting assembly according to claim 6, characterized in that, When the first limiting part abuts against the groove wall of the first mounting groove on the side near the adjusting member, the second limiting part abuts against the side wall.

8. The cutting assembly according to claim 3, characterized in that, The elastic element includes a coil spring, one end of which is connected to the mounting base and the other end of which is connected to the cutting rope.

9. The cutting assembly according to claim 8, characterized in that, The number of cutting ropes and the number of coil springs are two; one cutting rope is located on one side of the two coil springs and connected to the other end of one coil spring, and the other cutting rope is located on the other side of the two coil springs and connected to the other end of the other coil spring.

10. The cutting assembly according to claim 8, characterized in that, The cutting assembly also includes: The snap-fit ​​part is connected to the mounting base; the snap-fit ​​part is engaged with the coil spring.

11. A cutting mechanism, characterized in that, Includes the cutting component as described in any one of claims 1-10.

12. The cutting mechanism according to claim 11, characterized in that, The cutting mechanism also includes: Motor mounting bracket; A drive motor is mounted on the motor mounting base; the output shaft of the drive motor is connected to the mounting base.

13. The cutting mechanism according to claim 12, characterized in that, The cutting mechanism also includes: The connector, one end of which is connected to the motor mounting base; and, A protective component is located on one side of the motor mounting base, and the protective component is connected to the other end of the connector.

14. The cutting mechanism according to claim 13, characterized in that, One end of the connector is rotatably connected to the motor mounting base, and the axis of rotation is perpendicular to the axis of rotation of the output shaft of the drive motor.

15. The cutting mechanism according to claim 13, characterized in that, The connector is movably connected to the motor mounting base, and the connector has a first position and a second position; when the connector is in the first position, the protective member is offset from the cutting rope along the extension direction of the cutting rope; when the connector is in the second position, the protective member is opposite to the cutting rope along the extension direction of the cutting rope.

16. A self-moving device, characterized in that, Includes the cutting mechanism as described in any one of claims 11-15.

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