Edge trimming mechanism and mowing equipment

Abstract

The utility model provides an edge trimming mechanism and mowing equipment, and relates to the technical field of mowers. According to the edge beating mechanism, the passing performance of the edge beating mechanism can be improved, and the risk that the edge beating mechanism is damaged can be reduced. The edge beating mechanism comprises a cutting assembly and a protection piece. Wherein the cutting assembly comprises a cutting piece, and the cutting piece is rotationally arranged on the cutting assembly and used for cutting a target object; the protection piece is rotationally arranged on the cutting assembly, and at least part of the protection piece exceeds the outer edge of the cutting plane of the cutting piece. The edge trimming mechanism is used for cutting the target object on the mower.

Description

Technical Field

[0001] The present application relates to the technical field of lawn mowers, and particularly to an edge trimming mechanism and a lawn mowing device. Background Art

[0002] Lawn mowing robots can automatically complete the trimming of lawns. Before using a lawn mowing robot to trim a lawn, it is necessary to set a working boundary for the lawn mowing robot first. This working boundary can be set by laying a physical boundary line or establishing a virtual boundary through technologies such as satellite positioning and vision. However, due to the positioning accuracy, whether establishing a physical boundary or a virtual boundary, when establishing the working boundary, enough margins need to be left on the lawn to prevent the lawn mowing robot from crossing the working boundary, which will cause the lawn mowing robot unable to work in the edge area of the lawn.

[0003] In the related art, an edge trimming mechanism is provided on the lawn mowing robot to trim the edge area of the lawn that the lawn mowing robot cannot trim. However, during the movement of the edge trimming mechanism along with the lawn mowing robot, it is easy to collide with obstacles such as walls and shrubs, which will not only affect the smooth passage of the edge trimming mechanism and the lawn mowing robot, but also easily damage the edge trimming mechanism. Summary of the Utility Model

[0004] The present application provides an edge trimming mechanism and a lawn mowing device, which can improve the passing performance of the edge trimming mechanism and reduce the risk of damage to the edge trimming mechanism.

[0005] On the one hand, the present application provides an edge trimming mechanism, which is used to be connected to a lawn mower. The edge trimming mechanism includes: a cutting assembly and a protection member. Among them, the cutting assembly includes a cutting member, and the cutting member is rotatably arranged on the cutting assembly for cutting a target object; the protection member is rotatably arranged on the cutting assembly, and at least part of the protection member extends beyond the outer edge of the cutting plane of the cutting member.

[0006] For the edge trimming mechanism provided by the present application, since the cutting assembly includes a rotatable cutting member, the rotation of the cutting member can be used to cut the target object. And a protection member is rotatably installed on the cutting assembly, and at least a part of the protection member extends beyond the outer edge of the cutting plane L of the cutting member. If there is an obstacle on the traveling path of the cutting assembly, the protection member will first contact the obstacle and can roll over the obstacle, thereby reducing the friction and collision between the cutting member and the like and the obstacle, further reducing the damage of the parts in the cutting assembly, and also improving the passing performance of the edge trimming mechanism.

[0007] In a possible implementation manner of the present application, the cutting assembly includes an outer housing, and a protective cavity is formed by enclosing the edge part of the outer housing. The cutting member is located in the protective cavity; the protection member includes a roller, and the roller is rotatably connected to the outer housing through a rotating structure so that the roller rotates relative to the outer housing.

[0008] In a possible implementation manner of the present application, a first shaft hole is provided on the roller, a second shaft hole is provided on the outer housing, the rotating structure includes a rotating shaft and a limiting structure, and the limiting structure is arranged at one end of the rotating shaft away from the outer housing; the rotating shaft sequentially passes through the first shaft hole and the second shaft hole to rotatably connect the roller and the outer housing, and the limiting structure is used to prevent the roller from disengaging along the axial direction of the rotating shaft.

[0009] In a possible implementation manner of the present application, one end of the rotating shaft facing the outer housing has an external thread, the second shaft hole is a threaded hole adapted to the external thread, and the rotating shaft is threadedly connected to the second shaft hole after passing through the first shaft hole.

[0010] In a possible implementation manner of the present application, there are multiple rollers, and the multiple rollers are arranged at intervals along the outer periphery of the outer housing.

[0011] In a possible implementation manner of the present application, the cutting member includes a trimming line and a winding core, and the trimming line is fixed on the winding core; the cutting assembly includes a driving member, and the driving member is in transmission connection with the winding core and is used to drive the winding core to rotate, so that the winding core drives the trimming line to rotate to cut the target object; wherein, the protective member and the cutting plane of the trimming line do not intersect in the vertical direction.

[0012] In a possible implementation manner of the present application, the protective member is arranged on one side of the cutting member in the advancing direction of the cutting assembly, and along the vertical direction, the protective member is farther from the ground than the cutting member.

[0013] In a possible implementation manner of the present application, the protective member includes spherical balls, a cage matching the spherical balls is arranged on the cutting assembly, and the spherical balls are rotatably installed on the cage so that the spherical balls can rotate relative to the cutting assembly in any direction.

[0014] In a possible implementation manner of the present application, the edge trimming mechanism further includes a telescopic member, the telescopic member is slidably arranged on the cutting assembly, the protective member is arranged on the telescopic member, and the telescopic member can move relative to the cutting assembly to drive the protective member to move relative to the cutting member.

[0015] On the other hand, the present application provides a lawn mowing device, and the lawn mowing device includes: a lawn mower and the edge trimming mechanism provided in any one of the above. Wherein, an installation part is provided on the side of the lawn mower; the edge trimming mechanism is detachably connected to the installation part through a connecting member, and the edge trimming mechanism and the installation part are located on the same side of the lawn mower.

[0016] The mowing device provided by the present application, due to including the edge trimming mechanism of any of the above, thus has the same technical effects. It can reduce the friction and collision between the outer casing of the edge trimming mechanism and obstacles, etc., thereby reducing the damage of parts such as the outer casing, and can also improve the passing performance of the edge trimming mechanism, and further improve the passing performance of the mowing device. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the mowing device provided by the present application;

[0018] Figure 2 It is a schematic structural diagram of the cutting assembly in the edge trimming mechanism provided by the present application;

[0019] Figure 3 It is a schematic structural diagram of the cutting assembly and the protection member in the edge trimming mechanism provided by the present application;

[0020] Figure 4 It is a schematic structural diagram of the protection member in the edge trimming mechanism provided by the present application.

[0021] Description of the Reference Numerals:

[0022] 1 - Edge trimming mechanism; 11 - Cutting assembly; 111 - Outer casing; 1111 - Second shaft hole; 1112 - Edge part; 1113 - Protection cavity; 112 - Cutting member; 1121 - Rope winding core; 1122 - Grass trimming rope; 113 - Driving member; 12 - Protection member; 121 - First shaft hole; 122 - Accommodation groove; 13 - Rotating structure; 131 - Rotating shaft; 132 - Limiting structure; 14 - Shielding member; 2 - Lawn mower; 3 - Camera assembly; 4 - Obstacle; Q - Forward direction; L - Cutting plane; S - Vertical direction. Detailed Description of the Embodiments

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will further describe the specific technical solutions of the present application in detail with reference to the accompanying drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not used to limit the scope of the present application.

[0024] In the embodiments of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0025] In addition, in the embodiments of the present application, orientation terms such as "upper", "lower", "left", and "right" are defined relative to the orientation in which the components in the drawings are schematically placed. It should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and they can change accordingly with the change of the orientation in which the components in the drawings are placed.

[0026] In the embodiments of the present application, unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or integrated; it can be directly connected or indirectly connected through an intermediate medium.

[0027] In the embodiments of the present application, the terms "include", "comprise", or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article, or device including the element.

[0028] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0029] The embodiments of the present application provide a side trimming mechanism. Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 which shows the structural schematic diagram of the side trimming mechanism provided by the present application Figure 1 , Figure 2 which shows the structural schematic diagram of the cutting component in the side trimming mechanism provided by the present application, Figure 3 which shows the structural schematic diagram of the cutting component and the protection member in the side trimming mechanism provided by the present application, Figure 4 which shows the structural schematic diagram of the protection member in the side trimming mechanism provided by the present application.

[0030] The edge trimming mechanism 1 provided in the embodiment of the present application is used to be connected to a lawn mower 2. The edge trimming mechanism 1 includes a cutting assembly 11 and a protective member 12. Among them, the cutting assembly 11 includes a cutting member 112. The cutting member 112 is rotatably arranged on the cutting assembly 11, and the cutting member 112 is used for cutting a target object. The protective member 12 is rotatably arranged on the cutting assembly 11, and at least part of the protective member 12 extends beyond the outer edge of the cutting plane L of the cutting member 112.

[0031] In the embodiment of the present application, the lawn mower 2 can trim lawns and the like, but the lawn mower 2 usually cannot trim the edge areas of the lawn. An edge trimming mechanism 1 can be installed on the lawn mower 2 to use the edge trimming mechanism 1 to trim lawns and the like in areas that the lawn mower 2 cannot trim. The edge trimming mechanism 1 can be detachably installed on the lawn mower 2 by means of snap connection, threaded connection, etc., so as to facilitate the storage and use of the edge trimming mechanism 1 and the lawn mower 2. For example, the lawn mower 2 can be an intelligent lawn mowing robot capable of automatic movement, a lawn mower pushed manually, or a towed or ride-on lawn mower. The embodiment of the present application does not limit the type of the lawn mower 2.

[0032] In the embodiment of the present application, as Figure 2 shown, the cutting assembly 11 is used to cut target objects such as grass on the lawn. The cutting assembly 11 includes a cutting member 112. The cutting member 112 is rotatably arranged on the cutting assembly 11. In this way, the cutting member 112 can rotate at a relatively high speed to break off target objects such as grass.

[0033] In the embodiment of the present application, as Figure 3 and Figure 4 shown, a protective member 12 can be arranged on the cutting assembly 11 to provide at least protection for the cutting assembly 11 through the protective member 12. For example, the protective member 12 can be installed on the cutting assembly 11 in a rotatable manner, such as arranging the protective member 12 on a structural member such as the housing of the cutting assembly 11. And there is a gap between the protective member 12 and the cutting member 112, so that at least a part of the protective member 12 extends beyond the outer edge of the cutting plane L where the cutting member 112 rotates. In this way, during the process of the lawn mower 2 driving the edge trimming mechanism 1 to move, at least a part of the protective member 12 can be located outside the edge of the cutting plane L. Then, when the edge trimming mechanism 1 encounters an obstacle 4, such as a stone, a wall, a hard branch, etc., the protective member 12 will come into contact with the obstacle 4 first and can roll over the obstacle 4, thereby reducing the occurrence of damage when the cutting member 112 comes into contact with the obstacle 4, and also reducing the occurrence of collision and friction between other parts in the cutting assembly 11 and the obstacle 4.

[0034] In the embodiment of the present application, for the edge trimming mechanism 1 provided, since the cutting assembly 11 includes a rotatable cutting member 112, the rotation of the cutting member 112 can be utilized to cut the target object. And a protective member 12 is rotatably mounted on the cutting assembly 11, and at least a part of the protective member 12 extends beyond the outer edge of the cutting plane L of the cutting member 112. If there is an obstacle 4 on the traveling path of the cutting assembly 11, the protective member 12 will come into contact with the obstacle 4 first and can roll over the obstacle 4, thereby reducing the friction and collision between the cutting member 112 and the like and the obstacle 4. Furthermore, the damage to the parts in the cutting assembly 11 can be reduced, and the passing performance of the edge trimming mechanism 1 can also be improved.

[0035] In some embodiments of the present application, as Figure 3 and Figure 4 shown, the cutting assembly 11 includes a housing 111, and the edge portion 1112 on the housing 111 encloses to form a protection cavity 1113, and the cutting member 112 is located in the protection cavity 1113; the protective member 12 includes a roller, and the roller is rotatably connected to the housing 111 through a rotating structure 13 so that the roller rotates relative to the housing 111.

[0036] In the embodiment of the present application, as Figure 2 shown, the cutting assembly 11 further includes a housing 111. For example, an edge portion 1112 can be formed by extending from the edge of the housing 111, and the edge portion 1112 extends vertically along the vertical direction S from the edge of the housing 111. The cutting member 112 can be located in the protection cavity 1113 formed by the enclosure of the edge portion 1112. In this way, along the vertical direction S, the housing 111 can cover the upper part of the cutting member 112 away from the ground, so that the cutting plane L of the cutting member 112 can be shielded and protected by the housing 111 to reduce the occurrence of the situation where the cutting member 112 causes harm to personnel and the like.

[0037] In the embodiment of the present application, the protective member 12 can be a roller, such as a roller made of rubber, plastic, metal and other materials. For example, along the forward direction Q of the edge trimming mechanism 1, rollers can be installed at both the front end and the rear end of the housing 111. In this way, no matter whether the edge trimming mechanism 1 is moving forward or backward, there are rollers to at least provide protection for the housing 111 and can improve the passing performance of the edge trimming mechanism 1 when traveling in any direction.

[0038] Exemplarily, the roller can be rotatably mounted on the housing 111 through the rotating structure 13. For example, an integrally formed processing method can be adopted to form a rotating shaft matching the roller from the housing 111; alternatively, a roller mounting bracket can be provided on the housing 111 to rotatably mount the roller on the housing 111. And the axis of the roller is perpendicular or nearly perpendicular to the forward direction Q of the edge trimming mechanism 1. The specific structure of the rotating structure 13 is not limited in the embodiment of the present application.

[0039] In the above embodiments, since the cutting member 112 is located in the protection cavity 1113 formed by the outer housing 111, the cutting plane L of the cutting member 112 can be shielded and protected by the outer housing 111, which is beneficial to reducing the risk of contact between the user and the cutting member 112, thereby improving the safety of the edge trimming mechanism 1. The outer housing 111 can also provide protection for the cutting member 112, which is beneficial to reducing the risk of damage to the cutting member 112 caused by collision with hard objects. At the same time, the protection member 12 includes rollers, and the rollers are rotatably connected to the outer housing 111 through the rotating structure 13. The good rotation performance of the rollers can be utilized to provide protection for parts such as the outer housing 111 in the edge trimming mechanism 1, and the edge trimming mechanism 1 can also pass through obstacles 4 in a rolling manner.

[0040] In some embodiments of the present application, as Figure 4 shown, a first shaft hole 121 is provided on the roller, and a second shaft hole 1111 is provided on the outer housing 111. The rotating structure 13 includes a rotating shaft 131 and a limiting structure 132. The limiting structure 132 is arranged at one end of the rotating shaft 131 far from the outer housing 111. The rotating shaft 131 sequentially passes through the first shaft hole 121 and the second shaft hole 1111 to rotatably connect the roller to the outer housing 111. The limiting structure 132 is used to prevent the roller from disengaging along the axial direction of the rotating shaft 131.

[0041] In the embodiments of the present application, shaft holes can be provided on both the roller and the outer housing 111, and the rotating structure 13 uses a rotating shaft 131 that matches the shaft holes to rotatably mount the roller on the outer housing 111.

[0042] Exemplarily, a first shaft hole 121 can be provided on the roller, and correspondingly, a second shaft hole 1111 can be provided on the outer housing 111. Then, the rotating shaft 131 can pass through the first shaft hole 121 and be connected in the second shaft hole 1111. For example, the first shaft hole 121 can be rotatably connected to the rotating shaft 131, or the second shaft hole 1111 can be rotatably connected to the rotating shaft 131.

[0043] In another example, a limiting structure 132 can be provided on the rotating shaft 131 to limit the roller from disengaging from the rotating shaft 131 through the limiting structure 132. For example, the limiting structure 132 can be set as a convex ring with a diameter larger than the diameter of the first shaft hole 121, and a receiving groove 122 that matches the convex ring can be provided on the roller. The receiving groove 122 communicates with the first shaft hole 121. In this way, after the rotating shaft 131 passes through the first shaft hole 121, the convex ring can be pressed against the bottom wall of the receiving groove 122 close to the first shaft hole 121 to limit the movement of the roller relative to the rotating shaft 131 along the axial direction of the rotating shaft 131.

[0044] In the above embodiments, since the roller has a first shaft hole 121 and the outer housing 111 has a second shaft hole 1111, it is convenient to rotatably mount the roller on the outer housing 111 through the rotating shaft 131, the first shaft hole 121 and the second shaft hole 1111. And a limiting structure 132 is provided on the rotating shaft 131, and the movement of the roller relative to the rotating shaft 131 along the axis direction of the rotating shaft 131 can be restricted through the limiting structure 132, so that the reliability of the rotational mounting of the roller on the outer housing 111 can be improved.

[0045] In some embodiments of the present application, as Figure 4 shown, one end of the rotating shaft 131 facing the outer housing 111 has an external thread, and the second shaft hole 1111 is a threaded hole adapted to the external thread. After the rotating shaft 131 passes through the first shaft hole 121, it is threadedly connected to the second shaft hole 1111.

[0046] In the embodiments of the present application, the rotating shaft 131 can be fixedly connected to the outer housing 111 by means of threaded connection, and the roller is connected to the rotating shaft 131 by means of rotational connection.

[0047] Exemplarily, an external thread can be provided at one end of the rotating shaft 131 away from the limiting structure 132. Correspondingly, the second shaft hole 1111 can be set as a threaded hole matching the external thread. Then the rotating shaft 131 can be fixedly installed on the outer housing 111 through the external thread and the threaded hole.

[0048] In another example, the portion of the rotating shaft 131 corresponding to the first shaft hole 121 can be set as a smooth cylindrical surface, so that the first shaft hole 121 and the rotating shaft 131 are rotationally connected through the cylindrical surface.

[0049] In the above embodiments, since an external thread is provided on the rotating shaft 131 and a threaded hole is provided on the outer housing 111, the rotating shaft 131 can be fixedly connected to the outer housing 111 by means of threaded connection. In this way, it is convenient to mount the roller on the outer housing 111 and also convenient to disassemble the roller, so as to facilitate the maintenance and replacement of the roller.

[0050] In some embodiments of the present application, there are multiple rollers, and the multiple rollers are arranged at intervals along the outer periphery of the outer housing 111.

[0051] In the embodiments of the present application, multiple rollers can be provided on the outer housing 111. For example, along the advancing direction Q of the edge-beating mechanism 1, rollers are provided at both the front end and the rear end of the outer housing 111. At least two rollers can also be provided on the front side of the outer housing 111. The axes of these two rollers can be located on the same straight line, or can be set along the contour path of the outer housing 111 according to the contour shape of the outer housing 111. For example, at least one roller is provided on the periphery of the outer housing 111.

[0052] In the above embodiments, since a plurality of rollers are provided on the outer housing 111, during the movement of the edge trimming mechanism 1, after any one of the plurality of rollers contacts an obstacle 4, the edge trimming mechanism 1 can pass through smoothly, so that the edge trimming mechanism 1 has better passability and can provide more comprehensive protection for the edge trimming mechanism 1 from multiple directions, which is beneficial to reducing the occurrence of collisions and frictions between the outer housing 111 and the obstacle 4.

[0053] In some embodiments of the present application, such as Figure 2 and Figure 3 shown, the cutting member 112 includes a trimming rope 1122 and a rope winding core 1121, and the trimming rope 1122 is fixed on the rope winding core 1121; the cutting assembly 11 includes a driving member 113, and the driving member 113 is in transmission connection with the rope winding core 1121 for driving the rope winding core 1121 to rotate, so that the rope winding core 1121 drives the trimming rope 1122 to rotate to cut the target object; wherein, the protection member 12 does not intersect with the cutting plane L of the trimming rope 1122 in the vertical direction S.

[0054] In the embodiments of the present application, the cutting assembly 11 further includes a driving member 113, and the driving member 113 can be a motor, and the motor can be fixed on a structural member in the cutting assembly 11. For example, the motor is fixed on the outer housing 111. And the output shaft of the motor can pass through the outer housing 111 and extend into the protection cavity 1113 formed by the outer housing 111.

[0055] Exemplarily, the cutting member 112 can include a rope winding core 1121 and a trimming rope 1122. The rope winding core 1121 can be rotatably installed on the outer housing 111, and the output shaft of the motor is in transmission connection with the rope winding core 1121 through transmission members such as gears. The rope winding core 1121 can also be directly fixed on the output shaft of the motor. In this way, the rope winding core 1121 can be driven to rotate by the motor. The trimming rope 1122 can be a nylon rope, which makes the trimming rope 1122 have good toughness and wear resistance. For example, through holes matching the trimming rope 1122 can be provided on the rope winding core 1121, and then the trimming rope 1122 can be passed through the through holes and fixed on the rope winding core 1121.

[0056] Another example, as Figure 3 shown, during the process of the trimming rope 1122 being driven by the rope winding core 1121 to rotate, the cutting plane L of the trimming rope 1122 is a circular area. When the roller serving as the protection member 12 is installed on the outer housing 111, it is necessary to make the roller located outside the circular area, that is, along the vertical direction S, the roller does not coincide with the cutting plane L of the trimming rope 1122.

[0057] In the above embodiments, since the cutting member 112 includes a rope winding core 1121, it is convenient to install the trimming rope 1122 on the trimming mechanism through the rope winding core 1121, and the trimming rope 1122 can be driven to rotate by the rope winding core 1121 to achieve the goal of trimming grass. At the same time, staggering the roller from the cutting plane L of the trimming rope 1122 can reduce the situation where the trimming rope 1122 hits the roller, thereby contributing to the improvement of the service lives of the trimming rope 1122 and the roller.

[0058] In some embodiments of the present application, as Figure 3 shown, the protective member 12 is arranged on one side of the cutting member 112 of the cutting assembly 11 in the forward direction Q. Along the vertical direction S, the roller of the protective member 12 is closer to the ground than the cutting member 112.

[0059] In the embodiments of the present application, at least two rollers can be arranged on the outer housing 111. That is, along the forward direction Q of the cutting member 112 (the moving direction of the edge trimming mechanism 1), one roller can be installed on each of the front side and the rear side of the outer housing 111, or one roller can be installed on the front side of the outer housing 111.

[0060] Exemplarily, along the vertical direction S, the position of the cutting member 112 can be lower, and the position of the roller serving as the protective member 12 can be higher than the lowermost end of the cutting member 112. That is, after the edge trimming mechanism 1 is installed on the lawn mower 2, the lowermost end of the cutting member 112 is closer to the bottom surface than the roller.

[0061] In the above embodiments, since the protective member 12 is arranged on one side of the cutting member 112 of the outer housing 111 in the forward direction Q, when the edge trimming mechanism 1 encounters an obstacle 4 during forward movement, the protective member 12 will first contact the obstacle 4 to roll over the obstacle 4, so that the edge trimming mechanism 1 can smoothly pass through the obstacle 4. At the same time, along the vertical direction S, the cutting member 112 is closer to the ground than the protective member 12, which not only does not affect the cutting of the target by the cutting member 112, but also can provide protection for the cutting member 112 by the protective member 12, contributing to reducing the occurrence of damage to the cutting member 112 caused by collision.

[0062] In some embodiments of the present application, the protective member 12 includes spherical balls, and a cage matching the spherical balls is arranged on the cutting assembly 11. The spherical balls are rotatably installed on the cage so that the spherical balls can rotate relative to the cutting assembly 11 in any direction.

[0063] In the embodiments of the present application, the protective member 12 can also adopt spherical balls. For example, a separate cage can be provided on the outer housing 111. The cage has spherical limiting grooves adapted to the spherical balls; or spherical limiting grooves adapted to the spherical balls are formed on the outer housing 111. In this way, the separate cage can be fixed to the outer housing 111 by fasteners such as screws and rivets. The spherical balls can be accommodated in the spherical limiting grooves so that the spherical balls can rotate in any direction within the limiting grooves. Then, the spherical balls can rotate relative to the outer housing 111 in any direction. At least a part of the spherical balls can be located outside the contour of the outer housing 111, that is, at least a part of the spherical balls protrudes from the outer surface of the outer housing 111.

[0064] In the above embodiments, since the protective member 12 includes spherical balls, during the process of the cutting assembly 11 approaching the obstacle 4, the spherical balls can first come into contact with the obstacle 4. And the spherical balls can rotate in any direction, so that the spherical balls can more easily roll onto the obstacle 4, that is, the cutting assembly 11 can be driven to roll over the obstacle 4, thereby providing better protection for the cutting assembly 11 and the like and enabling the edge trimming mechanism 1 to have better passability.

[0065] In some embodiments of the present application, the edge trimming mechanism 1 further includes a telescopic member (not shown in the figure). The telescopic member is slidably arranged on the cutting assembly 11, and the protective member 12 is arranged on the telescopic member. The telescopic member can move relative to the cutting assembly to drive the protective member 12 to move relative to the cutting member.

[0066] In the embodiments of the present application, the protective member 12 can be movably installed on the cutting assembly 11 to facilitate adjusting the distance between the protective member 12 and the cutting member 112, or adjusting the distance between the protective member 12 and the ground.

[0067] Exemplarily, a telescopic member can be provided on the cutting assembly 11. For example, the telescopic member can be a sliding rail and a slider connected in a sliding manner. The rail is fixed on the cutting assembly 11, and the protective member 12 is arranged on the slider. Then, by sliding the slider along the rail, the distance between the protective member 12 and the cutting member 112 can be adjusted. Alternatively, the telescopic member can also be a telescopic rod with a multi-stage structure. One end of the telescopic rod is connected to the outer housing 111 of the cutting assembly 11, and the protective member 12 is rotatably arranged at the other end of the telescopic rod. Then, the telescopic rod can be lengthened or shortened to adjust the distance between the protective member 12 and the cutting member 112.

[0068] In the above embodiments, since the protective member 12 is slidably arranged on the cutting assembly 11 through the telescopic member, the distance between the protective member 12 and other parts such as the cutting member 112 can be adjusted through the telescopic member, which is beneficial to improving the applicability of the edge trimming mechanism.

[0069] In addition, an embodiment of the present application further provides a mowing device, which includes a lawn mower 2 and the edging mechanism 1 provided in any of the above embodiments. Among them, the side surface of the lawn mower 2 has a mounting portion; the edging mechanism 1 is detachably connected to the mounting portion through a connecting member, and the edging mechanism 1 and the mounting portion are located on the same side of the lawn mower 2.

[0070] In the embodiment of the present application, the lawn mower 2 can be used to trim lawns, vegetation, etc. The lawn mower 2 can be an intelligent mowing robot capable of automatic movement, a lawn mower pushed by manpower, or a towed or ride-on lawn mower, etc. The embodiment of the present application does not limit the type of the lawn mower 2.

[0071] In the embodiment of the present application, as Figure 1 shown, a mounting portion can be provided on one side of the lawn mower 2. For example, along the traveling direction of the lawn mower 2, the mounting portion can be provided on any side such as the front side, the rear side, or the left side of the lawn mower 2, and the mounting portion can be a threaded hole, a clamping groove, or other structures. Then, a connecting member matching the mounting portion can be provided on the edging mechanism 1. For example, the connecting member can be a bolt matching the threaded hole or a hook matching the clamping groove. In this way, the edging mechanism 1 can be detachably connected to the mounting portion by means of threaded connection and / or clamping.

[0072] Exemplarily, a connecting member can be provided on one side of the outer casing 111 of the cutting assembly 11. In this way, after the edging mechanism 1 is installed on the lawn mower 2 through the connecting member and the mounting portion, both the edging mechanism 1 and the mounting portion are located on the same side of the lawn mower 2. Then, the area that cannot be trimmed by the lawn mower 2 can be trimmed by the edging mechanism 1.

[0073] For the mowing device provided by the embodiment of the present application, since the edging mechanism 1 is detachably installed on the lawn mower 2, the trimming area of the mowing device can be increased, thereby improving the working efficiency of the mowing device. And a protective member 12 is provided on the edging mechanism 1, so that the friction and collision between the cutting assembly 11 of the edging mechanism 1 and an obstacle 4 can be reduced, and further, the damage of components such as the cutting assembly 11 can be reduced, and the passing performance of the edging mechanism 1 can also be improved.

[0074] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered by the scope of the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. An edge trimming mechanism, characterized in that, For connection to lawn mowers, including: A cutting assembly, the cutting assembly comprising a cutting piece, the cutting piece being rotatably disposed on the cutting assembly and used for cutting a target object; A protective member is rotatably disposed on the cutting assembly, and at least a portion of the protective member exceeds an outer edge of a cutting plane of the cutting member.

2. The edge trimming mechanism according to claim 1, wherein, The cutting assembly includes an outer shell, the edge of which encloses a protective cavity, and the cutting member is located in the protective cavity; the protective member includes a roller, which is rotatably connected to the outer shell via a rotating structure so that the roller rotates relative to the outer shell.

3. The edge trimming mechanism according to claim 2, characterized in that, The roller is provided with a first shaft hole, the outer shell is provided with a second shaft hole, the rotating structure comprises a rotating shaft and a limiting structure, and the limiting structure is provided at one end of the rotating shaft away from the outer shell; The rotating shaft passes through the first shaft hole and the second shaft hole in sequence to rotatably connect the roller to the outer shell, and the limiting structure is used to prevent the roller from escaping along the axial direction of the rotating shaft.

4. The edge trimming mechanism according to claim 3, characterized in that, The end of the rotating shaft facing the outer shell has an external thread, the second shaft hole is a threaded hole adapted to the external thread, and the rotating shaft is threadedly connected to the second shaft hole after passing through the first shaft hole.

5. The edging mechanism according to claim 2, characterized in that, There are a plurality of rollers, and the plurality of rollers are arranged at intervals along the outer circumference of the outer shell.

6. The edge trimming mechanism according to claim 1, wherein The cutting element comprises a grass cutting rope and a rope winding core, and the grass cutting rope is fixed on the rope winding core; The cutting assembly includes a driving member, which is in transmission connection with the rope winding core and is used to drive the rope winding core to rotate, so that the rope winding core drives the mowing rope to rotate to cut the target object; Wherein, the protective member and the cutting plane of the mowing rope do not intersect in the vertical direction.

7. The edging mechanism according to claim 1, wherein The protective member is arranged on one side of the cutting assembly in the advancing direction of the cutting member, and along the vertical direction, the protective member is farther away from the ground than the cutting member.

8. The edge trimming mechanism according to claim 1, characterized in that, The protective member comprises a spherical ball, and a retaining frame matching the spherical ball is arranged on the cutting assembly. The spherical ball is rotatably mounted on the retaining frame so that the spherical ball can rotate relative to the cutting assembly in any direction.

9. The edging mechanism according to any one of claims 1 to 8, characterized in that, It also includes a telescopic member, which is slidably arranged on the cutting assembly. The protective member is arranged on the telescopic member. The telescopic member can move relative to the cutting assembly to drive the protective member to move relative to the cutting member.

10. A mowing device, characterized in that, include: A lawn mower having a mounting portion on a side thereof; The edge trimming mechanism according to any one of claims 1 to 9 is detachably connected to the mounting portion via a connecting piece, and the edge trimming mechanism and the mounting portion are located on the same side of the lawn mower.

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