Protective cover, edge cutting device and mowing equipment

Abstract

The utility model provides a protective cover, an edge cutting device and mowing equipment. The protective cover comprises a top plate, a side plate and a bottom plate, the side plate is connected between the top plate and the bottom plate to form a containing space, at least the bottom plate is provided with a first feeding port, the first feeding port is communicated with the containing space, and at least the position, close to the top plate, of the side plate forms a retaining wall. A discharge port is formed by surrounding the area, without the retaining wall, of the side plate in the circumferential direction, the top plate and the bottom plate, and the discharge port is communicated with the containing space. The edge cutting device comprises a mowing mechanism. The mowing mechanism comprises a protective cover. The mowing equipment comprises a robot and an edge cutting device, the edge cutting device is detachably installed on one side of the robot, and at least when the edge cutting device works, the discharging opening faces the side of the robot. Single-direction discharging is achieved through the discharging opening, and pollution caused by multi-direction discharging is avoided.

Description

Technical Field

[0001] This application relates to the field of robots, and particularly to a protective cover, an edge cutting device, and a lawn mowing device. Background Art

[0002] A lawn mowing robot can automatically plan a mowing path for mowing. However, for the edge position of the lawn, a dedicated edge cutting device is generally required for trimming. However, the grass clippings and the like generated by the existing edge cutting device for trimming the lawn edge fly everywhere, which is not conducive to grass clipping management. Summary of the Utility Model

[0003] In view of this, this application provides a protective cover, an edge cutting device, and a lawn mowing device, which can control the grass clippings to be discharged in a single direction, facilitating the management of grass clippings, so as to solve the above technical problems.

[0004] In the first aspect of this application, a protective cover is provided, which is applied to an edge cutting device. The protective cover includes a top plate, side plates, and a bottom plate. The side plates are connected between the top plate and the bottom plate to form a receiving space. At least the bottom plate is provided with a first feed port, and the first feed port is communicated with the receiving space. At least the position of the side plate close to the top plate forms a retaining wall. The area of the side plate where the retaining wall is not provided along its circumference forms a discharge port around the top plate and the bottom plate, and the discharge port is communicated with the receiving space.

[0005] In the second aspect of this application, an edge cutting device is provided. The edge cutting device includes a mowing mechanism, and the mowing mechanism includes a protective cover, and the protective cover is the protective cover described in the first aspect.

[0006] In the third aspect of this application, a lawn mowing device is provided, which includes a robot and an edge cutting device. The edge cutting device is detachably installed on one side of the robot. The edge cutting device is the edge cutting device described in the second aspect. At least when the edge cutting device works, the discharge port faces the side of the robot.

[0007] In the fourth aspect of this application, a lawn mowing device is provided, which includes a robot and an edge cutting device. The edge cutting device is detachably installed on one side of the robot. The edge cutting device includes a mowing mechanism, and the mowing mechanism includes a protective cover and a knife assembly arranged in the protective cover. The bottom of the protective cover is provided with a feed port, and the side of the protective cover is provided with a discharge port. The discharge port faces the side of the robot at least when the edge cutting device works.

[0008] Thus, at least a first feed inlet is provided on the bottom plate. Grass enters the protective cover through the first feed inlet, is broken into grass clippings by the knife assembly located inside the protective cover, and makes a rotational movement driven by the airflow generated by the rotation of the knife assembly. Since at least a retaining wall is formed at the position where the side plate is close to the top plate, the retaining wall can prevent the grass clippings from flying out tangentially from the side wall. An area on the circumferential direction of the side plate where the retaining wall is not provided and the top plate and the bottom plate surround to form a discharge port. When the grass clippings rotate to the discharge port, since there is no retaining wall at the discharge port, the grass clippings are discharged along the discharge port, realizing single-direction discharging and avoiding pollution caused by multi-direction discharging. Moreover, for the lawn mowing equipment of the present application, the discharge port faces the robot side at least when the edge cutting device is working, which can prevent the grass clippings discharged by the lawn mowing equipment from flying outside the lawn edge during edge cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0010] Figure 1 It is a schematic structural diagram of a lawn mowing equipment in an embodiment of the present application, where Figure 1 the edge cutting device of the lawn mowing equipment in

[0011] Figure 2 It is a schematic structural diagram of a lawn mowing equipment in an embodiment of the present application, where Figure 2 the edge cutting device of the lawn mowing equipment in

[0012] Figure 3 It is a three-dimensional structural diagram of an edge cutting device in an embodiment of the present application.

[0013] Figure 4 is Figure 3 a cross-sectional view taken at IV-IV.

[0014] Figure 5 It is a three-dimensional structural diagram of a protective cover in an embodiment of the present application.

[0015] Figure 6 is Figure 5 a bottom view of

[0016] Figure 7 is Figure 5 a three-dimensional structural diagram of the protective cover in

[0017] Figure 8 Schematic diagram of the three-dimensional structure of the protective cover in Figure 5 another perspective.

[0018] Figure 9 Schematic diagram of the decomposition of Figure 5 .

[0019] Figure 10 Schematic diagram of the decomposition of the mowing mechanism in an embodiment of the present application in another direction.

[0020] Figure 11 Schematic diagram of the three-dimensional structure of the protective cover in another embodiment of the present application.

[0021] Figure 12 Schematic diagram of the decomposition of Figure 11 .

[0022] Figure 13 Schematic diagram of the decomposition of the edge cutting device in an embodiment of the present application.

[0023] Figure 14 Schematic diagram of the further decomposition of the combination of the Figure 13 rotating mechanism, connecting arm and mowing mechanism in.

[0024] Figure 15 Schematic diagram of the enlargement of the Figure 14 elastic member in.

[0025] Reference numerals:

[0026] Lawn mowing equipment 1;

[0027] Robot 11, edge cutting device 12;

[0028] Mowing mechanism 124, housing 1241, motor 1242, knife assembly 1243;

[0029] Protective cover 2;

[0030] Top plate 21, side plate 22, bottom plate 23, receiving space 24, first feed port 25, retaining wall 26, discharge port 27, second feed port 28, second connecting portion 29;

[0031] First rib 230, second rib 233;

[0032] Arc ring portion 221, tangential extension portion 222, intersecting extension portion 223, upper side plate 224; lower side plate 225;

[0033] Second arc portion 231, second tangential protrusion 232;

[0034] Upper space 241, lower space 242;

[0035] The first arc portion 211 and the first tangential protrusion 212;

[0036] The blade 1243a, the air flow guide 1243b, and the first connection portion 1245;

[0037] The mounting member 121, the adapter portion 1211, and the tray 1212;

[0038] The rotating mechanism 122, the rotation driving portion 1220, the first motor 1221, the driving gear 1222, the driven gear 1223, the deformation energy storage portion 1224, the follower 1224a, the top plate 1224a1, the connecting member 1224b, the penetrating portion 1224b1, the pivot 1224b2, the elastic member 1224c, the sleeved portion 1224c1, the abutting portion 1224c2, the first clamping portion 1224c3, and the second clamping portion 1224c4;

[0039] The connecting arm 123;

[0040] The mounting housing 127, the first cavity 1271, and the second cavity 1272;

[0041] The cover 128. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific implementation manners, and are not intended to limit this application.

[0044] The terms "first", "second", etc. in the specification and claims of this application and the above accompanying drawings are used to distinguish different objects, rather than to describe a specific order. The terms "a", "an", or "the" and the like used in this application do not indicate a quantity limitation, but only indicate that there is at least one. The terms such as "including" or "comprising" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0045] In the description of this specification, the descriptions referring to terms such as "embodiment", "specific embodiment", "example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a mowing device 1 in an embodiment of this application. The mowing device 1 includes a robot 11 and an edge cutting device 12. The robot 11 is a robot capable of automatically mowing grass. Its working principle is to perform positioning and sensing through built-in sensors to achieve traversing operations in the working area. However, since the projection of the working area of the mowing module of the robot 11 on the ground is within the projection of the outer contour of the robot 11 on the ground, the robot 11 cannot mow the boundary area of the lawn or the area adjacent to obstacles due to its shape limitation. The edge cutting device 12 is detachably mounted on the robot 11 and can be used to mow the boundary area of the lawn or the area adjacent to obstacles that the robot 11 cannot mow.

[0047] As Figure 1 shown, the edge cutting device 12 can be retracted on one side or inside the robot 11. As Figure 2 shown, the edge cutting device 12 can be deployed to the side away from the robot 11 to mow the boundary area of the lawn.

[0048] Therefore, when it is necessary to mow the boundary area of the lawn or the area adjacent to obstacles, the edge cutting device 12 can be deployed to the side away from the robot 11 and mow the boundary area of the lawn or the area adjacent to obstacles; conversely, when it is not necessary to mow the boundary area of the lawn or the area adjacent to obstacles, the edge cutting device 12 can be retracted to the side close to the robot 11 or directly detached from the robot 11 for convenient storage.

[0049] Please refer to Figure 3 , Figure 3Schematic perspective view of the edge cutting device 12 in an embodiment of the present application. The edge cutting device 12 includes a mowing mechanism 124. The mowing mechanism 124 is connected to the robot 11. It can be understood that the mowing mechanism 124 can be connected to the side, tail, top, etc. of the robot 11. In this embodiment, the mowing mechanism 124 is connected to the right side of the robot 11. It can be understood that the mowing mechanism 124 can be directly or indirectly connected to the robot 11. The mowing mechanism 124 is used for mowing. When the mowing device 1 is adjacent to the boundary area of the lawn and needs to trim the boundary area of the lawn or the area adjacent to the obstacle and needs to trim the area of the lawn adjacent to the obstacle, the mowing mechanism 124 can be used to trim the boundary area of the lawn or the area adjacent to the obstacle. When the mowing device 1 is located in other areas of the lawn, the mowing mechanism 124 can also be used to trim other areas of the lawn when it is started.

[0050] In some embodiments, please also refer to Figure 3 and Figure 4 , the mowing mechanism 124 includes a housing 1241, a motor 1242 installed inside the housing 1241, and a cutter assembly 1243 connected to the motor 1242 and located outside the housing 1241. The cutter assembly 1243 is used for mowing. The mowing mechanism 124 further includes a protective cover 2. The protective cover 2 is connected to the housing 1241 and the protective cover 2 covers the periphery of the cutter assembly 1243. A discharge opening 27 is provided on the side of the protective cover 2. At least when the edge cutting device 12 is working, the discharge opening 27 of the protective cover 2 faces the side of the robot 11.

[0051] Thus, when the edge cutting device 12 is located on the lawn and performs edge trimming work at the edge of the lawn, the grass discharged from the mowing mechanism 124 through the discharge opening 27 is sprayed toward the side of the robot 11 and still remains on the lawn, without causing pollution to the area outside the lawn edge (such as walls, roads, etc.), which is beneficial to keeping the area after boundary cutting clean.

[0052] Please refer to Figure 5 , the protective cover 2 includes a top plate 21, side plates 22 and a bottom plate 23. The side plates 22 are connected between the top plate 21 and the bottom plate 23 to form a receiving space 24. At least a first feed opening 25 is provided on the bottom plate 23. The first feed opening 25 is communicated with the receiving space 24. At least a retaining wall 26 is formed at the position where the side plates 22 are close to the top plate 21. The area of the side plates 22 where no retaining wall 26 is provided along its circumference forms a discharge opening 27 together with the top plate 21 and the bottom plate 23. The discharge opening 27 is communicated with the receiving space 24.

[0053] Thus, the forage enters the receiving space 24 of the protective cover 2 from the first feed inlet 25, is broken into grass clippings by the knife assembly 1243 located in the receiving space 24, and makes a rotational movement driven by the airflow generated by the rotation of the knife assembly 1243. Since at least a retaining wall 26 is formed at the position of the side plate 22 close to the top plate 21, the retaining wall 26 can block the grass clippings from flying out tangentially at multiple positions on the side of the side plate 22. An area on the side plate 22 where the retaining wall 26 is not provided along its circumference forms a discharge port around the top plate 21 and the bottom plate 23. When the grass clippings rotate to the discharge port 27, since there is no retaining wall 26 at the discharge port 27, the grass clippings are discharged along the discharge port 27, realizing single-direction discharging and avoiding pollution caused by multi-direction discharging.

[0054] In some embodiments, the height of the discharge port 27 of the protective cover 2 is less than the height of the fuselage of the robot 11.

[0055] Thus, the grass clippings discharged from the discharge port 27 of the protective cover 2 will spray towards the bottom of the robot 11 and will not spray onto the fuselage of the robot 11 itself, which can avoid soiling the surface of the fuselage of the robot 11.

[0056] In some embodiments, a retaining wall 26 is formed at the position of the side plate 22 close to the top plate 21, and a second feed inlet 28 is formed at the position of the side plate 22 close to the bottom plate 23.

[0057] Thus, the side plate 22 is divided into two regions along its height direction, namely a first region where the retaining wall 26 is provided and a second region where the second feed inlet 28 is provided. The second feed inlet 28 can increase the feed area of the protective cover 2, thereby increasing the mowing efficiency.

[0058] In some embodiments, the first feed inlet 25 and the second feed inlet 28 are connected and in a grid shape, and moreover, there is a smooth transition between the side plate 22 and the bottom plate 23.

[0059] Thus, after the first feed inlet 25 and the second feed inlet 28 are connected, the feed efficiency can be increased.

[0060] In some embodiments, please refer to Figure 6 , the bottom plate 23 includes a first rib 230 and a plurality of second ribs 233. The plurality of second ribs 233 are arranged parallel and at equal intervals along one direction, and the first rib 230 crosses the plurality of second ribs 233 to form a plurality of hollow openings. The plurality of hollow openings located on the bottom plate 23 are the first feed inlet 25. The plurality of hollow openings located on the bottom plate 23 respectively extend from the bottom plate 23 to the side plate 22, and the plurality of hollow openings located on the side plate 22 are the second feed inlet 28.

[0061] Therefore, the first feed inlet 25 and the second feed inlet 28 have the function of a grass comb, which can comb the grass entering the first feed inlet 25 and the second feed inlet 28, and the combed grass is easier to cut.

[0062] In some embodiments, please refer to Figure 7 and Figure 8 , the side plate 22 includes an arc ring portion 221, a tangential extension portion 222 and an intersecting extension portion 223. The tangential extension portion 222 is tangentially connected to the arc ring portion 221, and the intersecting extension portion 223 is intersectingly connected to the arc ring portion 221. The top plate 21 includes a first arc portion 211 and a first tangential protrusion 212 connected to one end of the first arc portion 211. The bottom plate 23 includes a second arc portion 231 and a second tangential protrusion 232 connected to one end of the second arc portion 231. The arc ring portion 221 is connected to the peripheries of the first arc portion 211 and the second arc portion 231. The tangential extension portion 222 is connected to the same side edge of the first tangential protrusion 212 and the second tangential protrusion 232. The intersecting extension portion 223 is connected to the other side edge of the first tangential protrusion 212 and the second tangential protrusion 232. The tangential extension portion 222, the intersecting extension portion 223, the first tangential protrusion 212 and the second tangential protrusion 232 surround to form a discharge port 27.

[0063] Thus, the discharge port 27 extends along the tangent direction of the rotation path of the forage in the accommodation space 24, which is beneficial to discharging.

[0064] In some embodiments, the protective cover 2 is integrally formed. In other embodiments, please refer to Figure 9 , the side plate 22 includes an upper side plate 224 and a lower side plate 225. The upper side plate 224 is connected to the periphery of the top plate 21 to form an upper cover, and the lower side plate 225 is connected to the periphery of the bottom plate 23 to form a lower cover. The upper cover and the lower cover can be connected to each other. Among them, the upper side plate 224 forms at least a part of the retaining wall 26.

[0065] Thus, the protective cover 2 is composed of two parts, an upper cover and a lower cover, which is convenient for molding and can simplify the molding process. The retaining wall 26 can block the grass clippings from flying out in any direction from the side wall side, realizing discharging in a single direction.

[0066] In some embodiments, a part of the lower side plate 225 close to the upper side plate 224 forms another part of the retaining wall 26, and a part of the side wall of the lower side plate 225 far from the upper side plate 224 forms the second feed inlet 28.

[0067] Thus, forming another part of the retaining wall 26 on the lower side plate 225 can increase the height of the retaining wall 26, further increasing the blocking effect of the retaining wall 26 on blocking the grass clippings from flying out in any direction from the side wall side. Moreover, another part of the retaining wall 26 formed by the lower side plate 225 can be used to connect a plurality of second rib strips 233, increasing the structural strength of the lower cover.

[0068] In some embodiments, please refer to Figure 4 and Figure 10 , the knife assembly 1243 includes a plurality of blades 1243a and a plurality of air flow guides 1243b. The plurality of blades 1243a are used for cutting. The air flow guides 1243b are used to guide the air flow to the side of the top plate 21 of the protective cover 2. The grass clippings guided to the side of the top plate 21 of the protective cover 2 follow the swirling air flow generated by the knife assembly 1243 and make a rotational movement within the retaining wall 26, and when rotating to the discharge port 27, are discharged from the discharge port 27, which can better control the discharge direction of the grass clippings.

[0069] In some embodiments, an air flow guide 1243b is fixed to the side of a blade 1243a away from the top plate 21. Among them, in some embodiments, each blade 1243a is provided with an air flow guide 1243b. In other embodiments, only some of the blades 1243a are provided with air flow guides 1243b, which is not limited herein.

[0070] In some embodiments, one end of the air flow guide 1243b is fixed to the blade 1243a, and the other end extends obliquely away from the surface of the blade 1243a, and the other end extends from the side close to the center of the knife assembly 1243 to the side away from the center of the knife assembly 1243.

[0071] In some embodiments, the air flow guide 1243b is a cyclone blade, which can also participate in cutting the forage and improve the cutting efficiency.

[0072] In some embodiments, please refer to again Figure 4 , a first connecting portion 1245 is provided on the side of the housing 1241 facing the protective cover 2, a second connecting portion 29 is provided on the side of the top plate 21 of the protective cover 2 facing the outside, and the first connecting portion 1245 is connected to the second connecting portion 29. The motor 1242 is installed in the housing 1241. The output shaft 1242a of the motor 1242 passes through the first connecting portion 1245 and the second connecting portion 29 and then is connected to the knife assembly 1243 located in the receiving space 24.

[0073] In some embodiments, the first connecting portion 1245 is a protrusion, and the second connecting portion 29 is a groove, and the protrusion is inserted into the groove to achieve connection. In other embodiments, the first connecting portion 1245 is a groove, and the second connecting portion 29 is a protrusion. Among them, the connection manner of the protrusion and the groove can be but is not limited to snap connection, riveting, threaded connection, etc., which is not limited herein.

[0074] Please refer to Figure 11 and Figure 12 , Figure 11 is a schematic three-dimensional structure diagram of the protective cover 2 in another embodiment of the present application,Figure 12 is Figure 11 a decomposition schematic diagram. Different from the foregoing embodiment, the top plate 21 of the protective cover 2 in the second embodiment bulges toward the side away from the bottom plate 23. Therefore, the overall top plate 21 bulges relative to the bottom plate 23. In this way, the upper space of the accommodation space 24 of the protective cover 2 can be increased.

[0075] Thus, when the knife assembly 1243 rotates at a high speed, the accommodation space 24 of the protective cover 2 is divided into an upper space 241 and a lower space 242. The forage is chopped into grass clippings in the lower space 242. Most of the grass clippings follow the airflow generated by the high-speed rotation of the knife assembly 1243 and flow into the upper space 241, and finally are discharged through the discharge port 27.

[0076] Please refer to again Figure 2 , Figure 3 and Figure 4 , the edge cutting device 12 further includes a rotating mechanism 122, and the rotating mechanism 122 is installed on the robot 11. The rotating mechanism 122 is connected to the mowing mechanism 124. The rotating mechanism 122 at least drives the mowing mechanism 124 to move away from the robot 11, so that the mowing mechanism 124 extends out relative to the robot 11.

[0077] Thus, the rotating mechanism 122 can drive the mowing mechanism 124 to move together to the side away from the robot 11, or contract to the side close to the robot 11, which is convenient for storage.

[0078] In some embodiments, the rotating mechanism 122 itself is an elastic member. For example, a torsion spring. When the mowing mechanism 124 is retracted, the rotating mechanism 122 stores kinetic energy through elastic deformation. A clamping member can be arranged on the mowing mechanism 124 or the rotating mechanism 122 to be clamped with the robot 11. When it is necessary for the mowing mechanism 124 to extend out for edge trimming operation, the clamping member releases the clamping with the robot 11, and the elastic member drives the mowing mechanism 124 to extend out to the side away from the robot 11.

[0079] In some embodiments, please refer to Figure 13 , the rotating mechanism 122 includes a deformation energy storage part 1224. The deformation energy storage part 1224 is connected between the robot 11 and the mowing mechanism 124. The deformation energy storage part 1224 stores kinetic energy through elastic deformation. The kinetic energy stored by the deformation energy storage part 1224 drives the mowing mechanism 124 to move to the side away from the robot 11; when the mowing mechanism 124 moves toward the side close to the robot 11 under an external force, the deformation energy storage part 1224 can store the kinetic energy of the relative movement of the mowing mechanism 124 relative to the robot 11 through elastic deformation.

[0080] In some embodiments, please refer to Figure 14, the deformation energy storage part 1224 includes a follower 1224a, a connecting member 1224b, and an elastic member 1224c. The connecting member 1224b includes a penetrating part 1224b1 which is rotatably connected inside the cavity of the follower 1224a. The connecting arm 123 is connected to the penetrating part 1224b1. The elastic member 1224c is sleeved on the connecting member 1224b and connected between the follower 1224a and the connecting arm 123.

[0081] Thus, the penetrating part 1224b1 and the connecting arm 123 are fixedly connected. The clockwise rotation of the penetrating part 1224b1 and the connecting arm 123 as a whole relative to the follower 1224a will promote the elastic deformation of the elastic member 1224c to store kinetic energy. When the elastic member 1224c elastically recovers, it will push the penetrating part 1224b1 and the connecting arm 123 as a whole to rotate counterclockwise relative to the follower 1224a, driving the first connecting rod 1231, the second connecting rod 1232, and the mowing mechanism 124 to extend away from the robot 11 side.

[0082] In some embodiments, the rotating mechanism 122 further includes a rotation driving part 1220 which is connected between the robot 11 and the connecting arm 123. The rotation driving part 1220 is fixedly connected to the follower 1224a. When the follower 1224a is driven by the rotation driving part 1220 to rotate, the follower 1224a forces the elastic member 1224c to elastically deform to store kinetic energy. When the kinetic energy stored in the elastic member 1224c accumulates to a preset value, it will push the connecting arm 123 to drive the mowing mechanism 124 to rotate together and move to a side away from the robot 11.

[0083] Thus, the rotating mechanism 122 is also provided with a rotation driving part 1220, which can achieve self-driving.

[0084] In some embodiments, the rotation driving part 1220 includes a first motor 1221, a driving gear 1222, and a driven gear 1223. The first motor 1221 is connected to the robot 11. The output shaft of the first motor 1221 is connected to the driving gear 1222. The driving gear 1222 meshes with the driven gear 1223. The deformation energy storage part 1224 is connected to the driven gear 1223. The connecting arm 123 is connected to the deformation energy storage part 1224.

[0085] Thus, the first motor 1221 drives the driving gear 1222 to rotate. The driving gear 1222 drives the driven gear 1223 to rotate. The driven gear 1223 drives the connecting arm 123 to rotate through the deformation energy storage part 1224. Furthermore, the connecting arm 123 transmits the motion to the first connecting rod 1231 and the second connecting rod 1232, so as to drive the mowing mechanism 124 to move together.

[0086] In some embodiments, the follower 1224a is fixed to the driven gear 1223. The follower 1224a forms a cavity that is hollow inside and open at one end. The follower 1224a has a top plate 1224a1. Opposite ends of the penetrating portion 1224b1 are respectively rotatably connected to the top plate 1224a1 of the follower 1224a and the disk body of the driven gear 1223. The connecting arm 123 is connected to the side wall surface of the penetrating portion 1224b1 and extends out of the opening of the follower 1224a to be connected to the mowing mechanism 124. The elastic member 1224c is disposed through the penetrating portion 1224b1, and its two ends are respectively connected between the follower 1224a and the connecting arm 123. When the follower 1224a is driven by the driven gear 1223 to rotate, the follower 1224a forces the elastic member 1224c to undergo elastic deformation and accumulate elastic restoring force. When the elastic restoring force of the elastic member 1224c accumulates to a preset value, it can push the connecting arm 123 to drive the mowing mechanism 124 to rotate together and move toward the side away from the robot 11. When the mowing mechanism 124 is subjected to a reaction force when being blocked and impacted by an obstacle, the reaction force is transmitted to the elastic member 1224c through the connecting arm 123. The elastic member 1224c can buffer the reaction force, and after the impact is released, the elastic restoring force of the elastic member 1224c pushes the connecting arm 123 to drive the mowing mechanism 124 to move toward the side away from the robot 11 together and return to the state before being impacted, avoiding the impact external force received by the mowing mechanism 124 from being transmitted to the first motor 1221 and causing damage to the first motor 1221.

[0087] Thus, the elastic member 1224c provides an elastic buffer for the relative movement between the follower 1224a, the penetrating portion 1224b1, and the connecting arm 123 as a whole, so that when the mowing mechanism 124 is accidentally impacted by an external force, the first motor 1221 can be better protected.

[0088] In some embodiments, please refer to Figure 15 , the elastic member 1224c is a torsion spring. The elastic member 1224c includes two sleeving portions 1224c1, an abutting portion 1224c2 connected between the two sleeved portions 1224c1, and a first clamping portion 1224c3 and a second clamping portion 1224c4 connected to the respective ends of the two sleeved portions 1224c1. The sleeving portion 1224c1 is sleeved on the outer wall of the penetrating portion 1224b1. The abutting portion 1224c2 abuts against the side of the connecting arm 123 close to the driving gear 1222. The first clamping portion 1224c3 and the second clamping portion 1224c4 respectively extend out of the opening of the follower 1224a and are clamped on the outer surface of the side of the follower 1224a close to the driving gear 1222.

[0089] In other embodiments, the deformation energy storage part 1224 may also be other types of elastic deformation energy storage parts or rigid deformation energy storage parts, which are not limited here. When the deformation energy storage part 1224 is a rigid deformation energy storage part, the follower 1224a, the connecting part 1224b and the elastic part 1224c can be replaced by an adapter plate as a whole.

[0090] For some examples, please refer to Figure 14 The connecting member 1224b also includes a pivot 1224b2, and the opposite ends of the pivot 1224b2 are respectively rotatably connected between the through hole of the top plate 1224a1 of the follower 1224a and the central hole of the disk body of the driven gear 1223, and the penetrating portion 1224b1 is penetrated on the pivot 1224b2.

[0091] Therefore, the penetration portion 1224b1 is rotatably connected between the top plate 1224a1 of the follower 1224a and the disk body of the driven gear 1223 through the pivot 1224b2, which can reduce the friction force of the penetration portion 1224b1 relative to the top plate 1224a1 of the follower 1224a and the driven gear 1223.

[0092] Please refer to Figure 3 The edge cutting device 12 further includes a mounting member 121, which is mounted on the robot 11. It is understood that the mounting member 121 can be mounted on the side, tail, or top of the robot 11, etc., which is not limited here. In this embodiment, the mounting member 121 is mounted on the right side of the robot 11. The rotating mechanism 122 is mounted on the mounting member 121. The connecting arm 123 is connected between the rotating mechanism 122 and the mowing mechanism 124.

[0093] Thus, the rotating mechanism 122 can be installed on the robot 11 through the mounting member 121, and the installation is more stable and reliable.

[0094] In some embodiments, the mounting member 121 is substantially in the shape of a long-handled spoon. The mounting member 121 includes a connecting portion 1211 and a tray 1212. The connecting portion 1211 is in the shape of a long strip and is connected to the side of the body of the robot 11. The tray 1212 is connected to the connecting portion 1211. Figure 13 The rotating mechanism 122 further includes a mounting shell 127 and a cover 128. The mounting shell 127 includes a first cavity 1271 and a second cavity 1272. The mounting shell 127 is mounted on the tray 1212. The first motor 1221 and the driving gear 1222 are mounted in the first cavity 1271. The driven gear 1223 and the deformation energy storage part 1224 are mounted in the second cavity 1272. The top of the second cavity 1272 is open. The cover 128 is mounted on the opening.

[0095] Thus, through the fitting connection of the mounting member 121 with the mounting housing 127 and the cover body 128, other components of the rotating mechanism 122 are reliably and stably mounted on the mounting member 121, and the connection is stable and reliable.

[0096] It should be noted that those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to this application. The processor can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The robot further includes a memory, which is a random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, register, and other mature storage media in the art.

[0097] The above are only the preferred embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the creative concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application.

Claims

1. A protective cover, characterized in that, Applied to an edge cutting device, the protective cover includes a top plate, side plates and a bottom plate. The side plates are connected between the top plate and the bottom plate to form a receiving space. At least the bottom plate is provided with a first feed port, and the first feed port communicates with the receiving space. At least the position of the side plate close to the top plate forms a retaining wall. The area of the side plate without the retaining wall along its circumference forms a discharge port around between the top plate and the bottom plate, and the discharge port communicates with the receiving space.

2. The protective cover according to claim 1, characterized in that, The position of the side plate close to the top plate forms a retaining wall, and the position of the side plate close to the bottom plate forms a second feed port.

3. The protective cover according to claim 2, wherein The first feed port and the second feed port communicate with each other.

4. The protective cover according to any one of claims 2 to 3, characterized in that, The side plates include an upper side plate and a lower side plate. The upper side plate is connected to the periphery of the top plate to form an upper cover, and the lower side plate is connected to the periphery of the bottom plate to form a lower cover. The upper cover and the lower cover are connected to each other. Wherein, the upper side plate forms at least a part of the retaining wall.

5. The protective cover according to claim 4, characterized in that, The part of the lower side plate close to the upper side plate forms another part of the retaining wall, and the part of the side wall of the lower side plate away from the upper side plate forms the second feed port.

6. The protective cover according to claim 1, wherein The side plate is provided with a tangential extension part and an intersecting extension part. The top plate is provided with a first tangential protrusion part, and the bottom plate is provided with a second tangential protrusion part. The tangential extension part, the intersecting extension part, the first tangential protrusion part and the second tangential protrusion part surround to form the discharge port.

7. The protective cover according to claim 1, wherein The top plate bulges towards the side away from the bottom plate.

8. An edge cutting device, characterized in that, The edge cutting device includes a mowing mechanism, and the mowing mechanism includes a protective cover, and the protective cover is the protective cover according to any one of claims 1 to 7.

9. The edge cutting device according to claim 8, wherein The edge cutting device includes a mowing mechanism, and the mowing mechanism includes a housing, a motor installed in the housing, and a knife assembly connected to the motor and located outside the housing. The protective cover is connected to the housing, and the knife assembly is located in the receiving space of the protective cover.

10. The edge cutting device according to claim 9, characterized in that, The knife assembly includes a plurality of blades and an air flow guiding part, and the air flow guiding part is used to guide the air flow to the top plate side of the protective cover.

11. The edge cutting device according to claim 10, wherein, The air flow guiding part is a cyclone blade, and the cyclone blade is used to generate an upward air flow.

12. A lawn mowing device, characterized in that, Including a robot and an edge cutting device, the edge cutting device is detachably installed on one side of the robot. The edge cutting device is the edge cutting device according to any one of claims 8 to 11. At least when the edge cutting device works, the discharge port faces the robot side.

13. The mowing device according to claim 12, characterized in that, The height of the discharge port of the protective cover is less than the height of the body of the robot.

14. A lawn mowing device, characterized in that, Including a robot and an edge cutting device, the edge cutting device is detachably installed on one side of the robot. The edge cutting device includes a mowing mechanism, and the mowing mechanism includes a protective cover and a knife assembly arranged in the protective cover. The side of the protective cover is provided with a discharge port, and the discharge port faces the robot side at least when the edge cutting device works.

15. The lawn mowing device according to claim 14, characterized in that, The edge cutting device further includes a rotating mechanism, which is installed on the robot. The rotating mechanism is connected to the mowing mechanism, and the rotating mechanism at least drives the mowing mechanism to move away from the robot, so that the mowing mechanism extends out relative to the robot.

16. The mowing device according to claim 15, characterized in that, The rotating mechanism includes a deformation energy storage part, which is connected between the robot and the mowing mechanism. The deformation energy storage part stores kinetic energy in the form of elastic deformation. The kinetic energy stored by the deformation energy storage part drives the mowing mechanism to move away from the robot side; when the mowing mechanism is forced to move towards the robot side by an external force, the deformation energy storage part can store the kinetic energy of the relative movement of the mowing mechanism and the robot in the form of elastic deformation.

17. The mowing device according to claim 16, characterized in that, The deformation energy storage part includes a follower, a connecting piece and an elastic piece. The connecting piece includes a penetrating part, and the penetrating part is rotatably connected in the cavity of the follower. The mowing mechanism is connected to the penetrating part through a connecting arm. The elastic piece is sleeved on the connecting piece and connected between the follower and the connecting arm. The relative rotation of the follower with respect to the whole of the penetrating part and the connecting arm can cause the elastic piece to undergo elastic deformation.

18. The mowing device according to claim 17, wherein The rotating mechanism further includes a rotation driving part, which is connected between the robot and the follower. When the follower is driven by the rotation driving part to rotate, the follower forces the elastic piece to undergo elastic deformation to store kinetic energy. When the kinetic energy stored by the elastic piece accumulates to a preset value, it pushes the connecting arm to drive the mowing mechanism to rotate together and move towards the side away from the robot.

Images