Intelligent mower

Abstract

Embodiments of the present application provide an intelligent mower, comprising: a mower body having a left side and a right side in the traveling direction of the mower body; a cutting mechanism arranged at the bottom of the mower body and close to a target side of the mower body, the target side being the left side or the right side; and a first protection cover arranged above the cutting mechanism, the first protection cover being provided with a first protection side wall extending downwards, and the bottom of the first protection side wall corresponding to the target side being provided with a folded edge which is lower than the cutting mechanism and extends towards the inner side of the first protection cover, wherein a gap is present between the tail end of the folded edge in the horizontal direction and the tool nose of the cutting mechanism. In the technical solution of the embodiments of the present application, the folded edge is arranged on the first protection side wall, such that a better protection effect can be provided on the target side. Additionally, a gap is present between the tail end of the folded edge in the horizontal direction and the tool nose of the cutting mechanism, such that the cutting mechanism can effectively cut to the edge, and the cutting efficiency is higher.

Description

Smart lawn mower

[0001] Cross-references

[0002] This application claims priority from the Chinese patent applications listed in the table below, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of electrical equipment, and in particular to an intelligent lawn mower. Background Art

[0004] With the continuous development of electromechanical technology, many tasks can now be completed using electromechanical equipment. For example, lawn mowing can be done with a mobile lawn mower, which not only efficiently mows large areas of lawn but also ensures a neat and uniform cut. However, the high-speed rotating cutting mechanism can be dangerous, so for user safety, lawn mowers often feature protective covers over the rotating cutting mechanism.

[0005] Reducing the distance between the side of the protective cover and the tip of the knife, and reducing the distance between the protective cover and the ground can achieve better protection performance, but there are problems such as weed entanglement and large resistance of the cutting mechanism.

[0006] Application Contents

[0007] In view of the above problems, the present application is proposed to provide an intelligent lawn mower that solves the above problems or at least partially solves the above problems.

[0008] In one embodiment of the present application, a smart lawn mower is provided, comprising:

[0009] an apparatus body, wherein the apparatus body has a left side and a right side along a width direction of the apparatus body;

[0010] a cutting mechanism, eccentrically disposed at the bottom of the device body and close to a target side of the device body, the target side being the left side or the right side, the cutting mechanism having a cutting area relative to the device body;

[0011] a first protective cover having a first protective side wall extending downward, wherein a bottom portion of the first protective side wall corresponding to the target side is provided with a folded edge lower than the cutting mechanism and extending toward the inside of the first protective cover;

[0012] There is a gap between the end of the folded edge and the cutting area of ​​the cutting mechanism in the horizontal direction.

[0013] In another embodiment of the present application, a smart lawn mower is provided, comprising:

[0014] An apparatus body, wherein the apparatus body has a left side and a right side along a width direction of the apparatus body;

[0015] a cutting mechanism, eccentrically disposed at the bottom of the device body and close to a target side of the device body, the target side being the left side or the right side;

[0016] a first protective cover, disposed above the cutting mechanism, having a first protective side wall extending downward; a bottom of the first protective side wall being lower than the cutter on the cutting mechanism;

[0017] a second protective cover, disposed above the first protective cover, wherein a portion of the second protective cover corresponding to the target side of the device body has a second protective side wall extending downward;

[0018] The second protective cover extends the distance between the target side of the equipment body and the tool in the horizontal direction.

[0019] In another embodiment of the present application, a smart lawn mower is provided, comprising:

[0020] The equipment body has a running wheel set at the bottom, and the running wheel set includes a front wheel set and a rear wheel set;

[0021] A cutting mechanism, located between the front wheel assembly and the rear wheel assembly, and biased toward the right or left side of the bottom of the device body;

[0022] The second protective cover is located outside the cutting mechanism and has an inner protective wall and an outer protective wall. The height of the inner protective wall from the ground is lower than the height of the outer protective wall from the ground, and there is a gap between the inner protective wall and the outer protective wall.

[0023] Preferably, the width of the second protective cover is B, where B>20 mm.

[0024] Preferably, the distance between the outer protective wall and the cutting area is F, 25mm≤F≤55mm.

[0025] Preferably, the height difference between the bottom of the inner protective wall and the bottom of the outer protective wall is D4, 10mm≤D4≤25mm.

[0026] Preferably, the height of the bottom of the inner protective wall is D2, 30mm≤D2≤55mm.

[0027] Preferably, the intelligent lawn mower further includes:

[0028] The first protective cover is located between the second protective cover and the cutting mechanism. The first protective cover and the cutting mechanism are arranged at the bottom of the equipment body, and the first protective cover and the cutting mechanism can move up and down synchronously relative to the equipment body.

[0029] Preferably, the outer side of the second protective cover is flush with the outer side of the corresponding side of the equipment body and the outer side of the rear wheel set, and the diameter of the cutting mechanism is greater than half the width of the bottom of the equipment body.

[0030] Preferably, the front wheel group has a front wheel rotation area relative to the equipment body, the cutting mechanism has a first cutting area relative to the equipment body, part of the first cutting area is located outside the rear wheel group and the front wheel rotation area, and the outside of the second protective cover exceeds the outside of the rear wheel group.

[0031] Preferably, the intelligent lawn mower further includes:

[0032] The second cutting mechanism has a second cutting area relative to the equipment body, the second cutting area is located inside the walking wheel assembly, and the diameter of the second cutting mechanism is 1.5 times the diameter of the cutting mechanism.

[0033] Preferably, there is a distance L between the second cutting area and the first cutting area, and L is ≥ 10 mm.

[0034] In another embodiment of the present application, a smart lawn mower is provided, comprising:

[0035] An apparatus body, wherein the apparatus body has a left side and a right side along a width direction of the apparatus body;

[0036] a cutting mechanism, eccentrically disposed at the bottom of the device body and close to a target side of the device body, the target side being the left side or the right side;

[0037] a first protective cover, disposed above the cutting mechanism, having a first protective side wall extending downward; a bottom of the first protective side wall being lower than the cutter on the cutting mechanism;

[0038] a second protective cover, disposed above the first protective cover, wherein a portion of the second protective cover corresponding to the target side of the device body has a second protective side wall extending downward;

[0039] The second protective side wall has a protective structure on the side facing the first protective side wall, and the protective structure extends the distance between the target side of the equipment body and the tool in the horizontal direction. The lower side of the protective structure can be rotated toward the first protective side wall, and the bottom end of the protective structure is lower than the bottom end of the second protective side wall.

[0040] Preferably, the protective structure includes:

[0041] a bracket, one end of which is laterally extended and disposed on a side of the second protective side wall facing the first protective side wall, and the other end of which is longitudinally extended to be flush with the bottom end of the second protective side wall;

[0042] The rotating plate can be rotatably arranged on a side of the longitudinally extending end of the bracket facing the second protective side wall.

[0043] Preferably, a protective plate is provided on the side of the first protective side wall facing the cutting mechanism.

[0044] Preferably, the protective plate includes:

[0045] a guide portion, one end of which is connected to the first protective side wall, wherein an acute angle is formed between the guide portion and the first protective side wall; and

[0046] One end of the longitudinal portion is connected to the other end of the guide portion, and the other end of the longitudinal portion extends toward the ground until it is flush with the bottom end of the first protective side wall.

[0047] Preferably, the distance between the cutting mechanism and the bottom end of the longitudinal portion in the vertical direction is M, 12 mm ≤ M ≤ 15 mm.

[0048] Preferably, the bottom of the second protective side wall is 60 mm above the ground.

[0049] Preferably, the distance between the outer side of the second protective side wall and the outermost end of the cutting mechanism is F, 45mm≤F≤50mm.

[0050] Preferably, the second protective cover is an upper cover of the device body or a base of the device body.

[0051] Preferably, the second protective cover is the base of the device body;

[0052] The first protective cover and the cutting mechanism are arranged on the base, and the first protective cover and the cutting mechanism can move up and down synchronously relative to the base.

[0053] An intelligent lawn mower, comprising:

[0054] An apparatus body, wherein the apparatus body has a left side and a right side along a width direction of the apparatus body;

[0055] a cutting mechanism, disposed at the bottom of the device body and close to a target side of the device body, the target side being the left side and / or the right side;

[0056] a first protective cover, disposed above the cutting mechanism, having a first protective side wall extending downward; a bottom of the first protective side wall being lower than the cutter on the cutting mechanism;

[0057] a second protective cover, disposed on the outer side of the first protective cover, wherein the portion of the second protective cover corresponding to the target side of the device body has a second protective side wall extending downward;

[0058] a rotating plate, rotatably connected to the first protective side wall and / or the second protective side wall corresponding to the target side;

[0059] Wherein, in the vertical direction, the rotating plate extends downward, and when the protective plate is acted upon by an external force, the rotating plate rotates toward the direction approaching the cutting mechanism.

[0060] As an alternative:

[0061] The rotating plate is connected to the end of the first protective side wall or the outer wall of the first protective side wall through a rotating shaft; or

[0062] The rotating plate is connected to the end of the second protective side wall, the inner wall surface of the second protective side wall, or the outer wall surface of the second protective side wall through a rotating shaft; or

[0063] The rotating plate is arranged between the first protective side wall and the second protective side wall via a rotating shaft;

[0064] The rotating plate rotates around the rotating axis so that the angle at which the rotating plate is inclined relative to the first protective side wall or the second protective side wall is in the range of [40 degrees to 70 degrees].

[0065] Optionally, when the rotating plate is connected to the first protective side wall, a sliding seat is provided on the first protective side wall, and the rotating plate is slidably disposed in the sliding seat, and the rotating plate slides up and down in a vertical direction relative to the first protective side wall.

[0066] Optionally, the intelligent lawn mower further includes a limiting member, which is provided on the first protective cover or the device body;

[0067] When the rotating plate moves downward to a limit position relative to the equipment body along with the first protective side wall, the limiting member abuts against the rotating plate.

[0068] Optionally, along the length direction of the rotating plate, the front end and / or the rear end of the rotating plate are provided with a guiding inclined surface, and the guiding inclined surface faces the ground.

[0069] Optionally, the cutting mechanism includes a plurality of cutting discs, which are staggered at the bottom of the device body along the length direction of the device body;

[0070] At least one of the cutting blades is located proximate a target side of the device body.

[0071] Optionally, a bottom portion of the first protective side wall corresponding to the target side is provided with a protective structure that is lower than the cutting mechanism and extends toward the inside of the first protective cover.

[0072] Optionally, the upward side of the protective structure is a plane or an inclined surface;

[0073] The protective structure is provided with a hollow structure.

[0074] Optionally, when the rotating plate is connected to the first protective side wall, the distance between the bottom of the rotating plate and the bottom of the first protective side wall is 5 mm to 15 mm;

[0075] When the rotating plate is connected to the second protective side wall, the distance between the bottom of the rotating plate and the bottom of the second protective side wall is 10 mm to 30 mm.

[0076] Optionally, the second protective sidewall is movably connected to the second protective cover, and the second protective sidewall is arranged around the front, left and right sides of the device body;

[0077] Collision sensing components are provided on the equipment body at different directions. When the second protective side wall is hit, the second protective side wall moves relative to the second protective cover to trigger the collision sensing components.

[0078] In the technical solution of the embodiments of this application, a folded edge is provided on the first protective sidewall at a location corresponding to the left or right side of the device body. This provides excellent protection on the left or right side of the device body, significantly reducing the risk of harm to humans and animals caused by the smart lawn mower. Furthermore, a gap exists horizontally between the end of the folded edge and the tip of the cutting mechanism, allowing the cutting mechanism to effectively cut to the edge, resulting in higher cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0080] FIG1 is a top view of some components of an intelligent lawn mower provided in an embodiment of the present application;

[0081] FIG2 a is a cross-sectional view of some components of an intelligent lawn mower provided in an embodiment of the present application;

[0082] FIG2 b is a three-dimensional view of some components of an intelligent lawn mower provided in an embodiment of the present application;

[0083] FIG3 is a cross-sectional view of some components of another intelligent lawn mower provided in an embodiment of the present application;

[0084] FIG4 is a schematic diagram of a cutter and a first protective cover of the intelligent lawn mower provided by an embodiment of the present application in a second gear state;

[0085] FIG5 is a schematic diagram of a cutter and a first protective cover of the intelligent lawn mower provided by an embodiment of the present application in a third gear state;

[0086] FIG6 is a schematic diagram of a cutter and a first protective cover of the intelligent lawn mower provided by an embodiment of the present application in a fourth gear state;

[0087] 7a to 7d show finger protection states corresponding to the second protective side wall of the structure shown in FIG. 2a ;

[0088] 8a to 8d show finger protection states corresponding to the second protective side wall of the structure shown in FIG3 ;

[0089] FIG9 shows a diagram of an adult foot protection state corresponding to the second protective side wall of the structure shown in FIG2a;

[0090] 10a to 10c show adult foot protection states corresponding to the second protective side wall of the structure shown in FIG. 3 ;

[0091] Figures 11a and 11b show the standing child's foot protection state corresponding to the second protective side wall of the structure shown in Figure 2a;

[0092] 12a to 12c show the standing child's foot protection state corresponding to the second protective side wall of the structure shown in FIG. 3 ;

[0093] FIG13 shows a diagram of a kneeling child foot protection state corresponding to the second protective side wall of the structure shown in FIG2a;

[0094] FIG14 shows a diagram of a kneeling child foot protection state corresponding to the second protective side wall of the structure shown in FIG3 ;

[0095] FIG15 shows a schematic structural diagram of an intelligent lawn mower provided by another embodiment of the present application;

[0096] FIG16 shows a schematic structural diagram of an intelligent lawn mower provided in another embodiment of the present application;

[0097] FIG17 is a schematic structural diagram of an intelligent lawn mower with a cutting area located inside provided by an embodiment of the present application;

[0098] FIG18 is a partial cross-sectional view of the intelligent lawn mower provided in an embodiment of the present application;

[0099] FIG19 is a partial cross-sectional view of the simulated moving intelligent lawn mower provided in an embodiment of the present application;

[0100] FIG20 is a partial cross-sectional view 1 of a simulated hand reaching into the bottom of a device body according to an embodiment of the present application;

[0101] FIG21 is a second partial cross-sectional view of a simulated hand extending into the bottom of a device body according to an embodiment of the present application;

[0102] FIG22 is a first structural diagram of an intelligent lawn mower with a cutting area located outside provided by an embodiment of the present application;

[0103] FIG23 is a second structural diagram of the intelligent lawn mower with the cutting area located outside provided by an embodiment of the present application;

[0104] FIG24 is a partial cross-sectional view of the target side of the smart lawn mower provided by an embodiment of the present application;

[0105] FIG25 is a schematic diagram of a cutting mechanism provided in an embodiment of the present application in the 80th gear position;

[0106] FIG26 is a schematic diagram of the cutting mechanism provided in an embodiment of the present application in the 90th gear state;

[0107] FIG27 is a schematic diagram of a cutting mechanism provided in an embodiment of the present application in the 100th gear position;

[0108] FIG28 is a schematic diagram of the cutting mechanism provided in an embodiment of the present application in the 70th gear state;

[0109] FIG29 is a schematic diagram of a cutting mechanism provided in an embodiment of the present application in a 60th gear state;

[0110] FIG30 is a schematic diagram of a cutting mechanism provided in an embodiment of the present application in the 50th gear state;

[0111] FIG31 is a schematic diagram of a cutting mechanism provided in an embodiment of the present application in a 40th gear position;

[0112] FIG32 is a cross-sectional view of an intelligent lawn mower provided in an embodiment of the present application;

[0113] FIG33 is a cross-sectional view of another intelligent lawn mower provided in an embodiment of the present application;

[0114] FIG34 is a schematic diagram of various situations of the setting position of the rotating plate provided in an embodiment of the present application;

[0115] FIG35 is a cross-sectional view of another intelligent lawn mower provided in an embodiment of the present application

[0116] FIG36 is a bottom view of an intelligent lawn mower provided in an embodiment of the present application;

[0117] FIG37 is a perspective view of a partial structure of an intelligent lawn mower provided in an embodiment of the present application;

[0118] FIG38 is a left side view of an intelligent lawn mower provided in an embodiment of the present application;

[0119] FIG39 is a bottom view of a partial structure of another intelligent lawn mower provided by an embodiment of the present application;

[0120] FIG40 is a cross-sectional view of a simulated hand reaching into the bottom of the intelligent lawn mower according to an embodiment of the present application;

[0121] FIG41 is a schematic diagram illustrating a simulated hand reaching into the bottom of the intelligent lawn mower when the cutting mechanism is at positions 30, 40, and 50 according to an embodiment of the present application;

[0122] FIG42 is a schematic diagram of a simulated hand reaching into the bottom of the intelligent lawn mower when the cutting mechanism is at the 60th or 70th gear according to an embodiment of the present application;

[0123] Figure 43 is a schematic diagram of a simulated hand reaching into the bottom of the smart lawn mower when the cutting mechanism provided in an embodiment of the present application is at gear positions 80 or 90. DETAILED DESCRIPTION

[0124] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0125] The embodiments described in this application are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application. The "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem and basically achieve the technical effect within a certain error range. In addition, in the embodiments of this application, multiple refers to two or more. Unless there is any contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. The descriptions of "first", "second", etc. in this article are used to distinguish different directions, structures, components, etc., and do not represent a sequential order.

[0126] Figure 1 is a top view of some components of an intelligent lawn mower provided in an embodiment of the present application. Figure 2a is a cross-sectional view of some components of an intelligent lawn mower provided in an embodiment of the present application. Figure 2b is a perspective view of some components of an intelligent lawn mower provided in an embodiment of the present application. Figure 3 is a cross-sectional view of some components of another intelligent lawn mower provided in an embodiment of the present application. Referring to Figures 1 to 3, an intelligent lawn mower is provided in one embodiment of the present application. The intelligent lawn mower comprises: a device body, a cutting mechanism 3, and a first protective cover 1. Figures 1 to 3 do not illustrate the specific structure of the device body, and this embodiment does not specifically limit the appearance and structure of the device body. Along the direction of travel of the device body, the device body has a front side, a rear side, and left and right sides. The front side is located in the direction of arrow Y in Figure 1, and the right side is located in the direction of arrow X in Figure 1. Along the width of the device body, the device body has a left side and a right side. The cutting mechanism 3 is eccentrically positioned at the bottom of the device body, near the target side of the device body. The target side can be either the left or right side. Alternatively, both the left and right sides of the device body can be the target side. The cutting mechanism 3 has a cutting area relative to the equipment body. The cutting area can be considered as the area that can be cut by the tool on the cutting mechanism 3 when the cutting mechanism 3 rotates. The edge of the cutting area is the tip circle formed when the tool rotates.

[0127] The cutting mechanism 3 faces the ground and has a certain distance from the ground. The first protective cover 1 is arranged above the cutting mechanism 3, and the first protective cover 1 has a first protective side wall 12 extending downward (toward the ground). The first protective side wall 12 can provide effective protection on the target side, for example, preventing the user from extending his hands or feet to the area where the cutting mechanism 3 is located and touching the cutting mechanism 3 in an accidental situation, and can also prevent the fingers of the user from touching the cutting mechanism 3 when the user needs to carry the intelligent lawn mower. Notches 6 are provided on the front and rear sides of the first protective cover 1 corresponding to the device body, so that the cutting mechanism 3 is partially exposed from the first protective cover 1. When the device body moves in the forward direction, the cutting mechanism 3 exposed at the notch 6 on the front side can effectively cut the grass. When the device body moves in the backward direction, the cutting mechanism 3 exposed at the notch 6 on the rear side can effectively cut the grass.

[0128] As shown in Figures 2a and 2b, to enhance the protective effectiveness of the first protective sidewall 12, a folded edge 122 is provided at the bottom of the first protective sidewall 12, on the target side of the device body, extending lower than the cutting mechanism 3 and toward the inside of the first protective cover 1. Furthermore, a gap exists horizontally between the end of the folded edge 122 and the cutting area of ​​the cutting mechanism 3, or rather, between the end of the folded edge 122 and the blade tip. This gap allows the cutting mechanism 3 to precisely cut the edge of the lawn when mowing. Specifically, when the device body moves along the edge of the lawn, grass at the edge of the lawn can penetrate through the gap into the area where the cutting mechanism 3 is located (the cutting area), where the rotating cutting mechanism 3 can sever the grass, thus enabling the intelligent lawn mower to precisely cut the lawn. Furthermore, the presence of this gap prevents weeds from accumulating in the area where the cutting mechanism 3 is located. Cut weeds can be discharged through the gap rather than accumulating inside the first protective cover 1. In one embodiment, the cutting mechanism 3 is a rotatable blade disc equipped with knives protruding from its edge. As the blade disc rotates, the cutting edges of the knives exert a cutting force, thereby severing the grass. The cutting area mentioned above can be the area covered by the entire blade disc and knives during rotation, or it can be the annular area formed by the rotation of the knives. The circular tip of the knives formed during rotation can be considered the outer edge of the cutting area.

[0129] 2a, 2b, and 3 of the smart lawn mower. In one embodiment provided herein, the first protective cover 1 includes a first upper protective wall 11, and first protective side walls 12 are located at the edges of the first upper protective wall 11. The first upper protective wall 11 prevents cut grass from scattering and allows the cut grass to be discharged from the bottom and the gaps 6 on both sides of the first protective cover 1. As mentioned above, the first protective cover 1 is disposed above the cutting mechanism 3. This means that the first upper protective wall 11 is disposed above the cutting mechanism 3, and the first protective side walls 12 are located on one side of the cutting mechanism 3.

[0130] Furthermore, the first protective side wall 12 can be straight or arc-shaped. For example, in one embodiment provided in this application, the first protective side wall 12 is arc-shaped and is arranged on the outside of the arc section of the blade tip circle of the cutting mechanism 3, and the curvature radius of the first protective side wall 12 is greater than the radius of the blade tip circle. The plane where the blade tip circle is located can be considered as the above-mentioned cutting surface. The first protective side wall 12 extends in a direction close to the ground. The first protective side wall 12 can not only protect the user, but also protect the rotating cutting mechanism 3.

[0131] The first protective sidewall 12 can adapt not only to the shape of the cutting mechanism 3 but also to the shape of the device body. For example, if the device body is square, the first protective sidewall 12 can be linear, parallel to a certain tangent line of the cutting mechanism 3 (parallel to the longitudinal direction of the device body) and located on one side of the cutting mechanism 3. If the device body is circular, the first protective sidewall 12 can be curved.

[0132] Referring to Figures 2a and 2b, the first protective sidewall 12 effectively prevents the user from accidentally contacting the cutting mechanism 3 from a first direction (e.g., direction A in Figure 3), while the folded edge 122 effectively prevents the user from accidentally contacting the cutting mechanism 3 from a second direction (e.g., direction B in Figure 3). In one embodiment, the folded edge 122 is perpendicularly connected to the bottom of the first protective sidewall 12, and the cross-section of the first protective sidewall 12 is generally L-shaped. Furthermore, the angle between the folded edge 122 and the first protective sidewall 12 can also be obtuse or acute.

[0133] In a specific implementation, the length r of the folded edge 122 can be 5.9 to 22 mm. That is, as shown in FIG2 a , the dimension r from the end (i.e., the inner edge) of the folded edge 122 to the outer sidewall of the first protective sidewall 12 can be 5.9 to 22 mm. For example, r can be 11 mm or 21 mm.

[0134] The folded edge 122 extends toward the cutting mechanism 3, and its distal end can be positioned outside the blade tip of the cutting tool on the cutting mechanism 3. A gap exists between the distal end of the folded edge 122 and the blade tip. As shown in the example of Figure 2a, this gap I can be 0.1 to 5 mm. This gap provides greater safety while also reducing the likelihood of weed accumulation. Furthermore, grass at the edge of the lawn can penetrate through the gap into the area where the cutting mechanism 3 is located, effectively being cut by the cutting mechanism, achieving a cutting-to-the-edge function.

[0135] Furthermore, the folded edge 122 is located on the side of the cutting mechanism 3 facing the ground. The edge of the folded edge 122 facing the ground can be considered as the outer edge, and the edge on the opposite side is considered as the inner edge. Referring to Figure 3, in the vertical direction, there is a gap M between the inner edge of the folded edge 122 and the tool. In a specific embodiment, the distance M between the inner edge of the folded edge 122 and the tool can range from 4 to 10 mm. For example, the distance M can be 7 mm. Setting a gap between the inner edge of the folded edge 122 and the tool can not only effectively improve the chip removal ability of the cutting mechanism 3, but also prevent the debris accumulated on the folded edge 122 from being cut a second time, causing additional resistance.

[0136] In the horizontal direction, the distance J between the tip of the tool and the first protective side wall 12 is 6 to 27 mm, as shown in Figure 2a. For example, the distance J can be 10 mm. Continuing to refer to Figure 2a, the distance h between the bottom of the first protective side wall 12 and the ground can be 30 to 40 mm. For example, the distance h can be 36 mm. The distance H between the cutting mechanism 3 and the ground can be 40 to 50 mm. For example, the distance H can be 46 mm. It should be noted here that the cutting mechanism 3 of some smart lawn mowers can be raised and lowered. If the cutting mechanism of the smart lawn mower in this embodiment is a liftable cutting disc, the above distance H refers to the size when the cutting mechanism 3 is in the lowest position.

[0137] Referring to Figure 1 , the notch on either side of the first protective cover 1 corresponding to the left or right side of the device body has two end points when projected onto the plane where the cutting mechanism 3 resides. The left and right notches can be symmetrical about a reference axis. The reference axis passes through the center of the cutting mechanism and is parallel to the direction of travel of the intelligent lawn mower. In one embodiment, the notches on the left and right sides of the first protective cover 1 are free of first protective side walls. The first upper protective wall 11 of the first protective cover 1 has a shape and size comparable to that of the cutting mechanism 3, such as being the same as or slightly smaller than the cutting mechanism 3. More specifically, as shown in the example of Figure 1 , the cutting mechanism 3 includes a turntable 8 and a cutter 4. The dimensions of the first upper protective wall 11 can be the same as the tip circle of the cutter 4, or the dimensions of the first upper protective wall 11 can be the same as the dimensions of the turntable 8. In another embodiment, the notches on the left and right sides of the first protective cover 1 are free of first protective side walls and first upper protective walls. In this way, when viewed from the first protective cover 1 downward, the portion of the cutting mechanism corresponding to the notch is exposed. For the latter embodiment, the upper side of the exposed portion of the cutting mechanism can be shielded by the housing of the device body, or by providing another protective cover above the first protective cover.

[0138] As shown in Figure 1, the two endpoints of the notch are designated as points A and B in the figure. In one specific embodiment, the central angle α between the two notch endpoints, points A and B, and the center of the cutting mechanism 3 can be between 65 and 85 degrees. For example, the central angle α is 74 degrees. The more exposed area of ​​the cutting mechanism 3, the greater the risk. In this embodiment, the exposed portion of the cutting mechanism is controlled within the aforementioned central angle range, which balances mowing efficiency and safety.

[0139] Referring to Figures 1 to 3, another embodiment of the present application provides an intelligent lawn mower, comprising: a machine body, a cutting mechanism 3, a first protective cover 1, and a second protective cover 2. Along the width of the machine body, the machine body has a left side and a right side. The cutting mechanism 3 is eccentrically positioned at the bottom of the machine body, near the target side of the machine body, where the target side is the left or right side. The first protective cover 1 is positioned above the cutting mechanism 3 and has a downwardly extending first protective sidewall 12. The bottom of the first protective sidewall 12 is lower than the cutting tool on the cutting mechanism 3. The second protective cover 2 is positioned above the first protective cover 1 and has a downwardly extending second protective sidewall 22 at a portion corresponding to the target side of the machine body. The second protective cover 2 extends the horizontal distance between the target side of the machine body and the cutting tool. The second protective cover 22 is positioned outside the first protective sidewall 12 and has a gap K therebetween. The gap K can be 5 to 20 mm, for example, K = 16 mm or K = 8 mm.

[0140] In some embodiments, the bottom of the second protective sidewall 22 is higher on the outside and lower on the inside. For example, the bottom of the second protective sidewall 22 is a sloped surface with a higher outside and a lower inside, or a stepped surface. The thickness of the second protective sidewall 22 can be 25 to 35 mm.

[0141] 2a and 3, the horizontal distance F between the tip of the knife of the cutting mechanism 3 and the outer side wall of the second protective side wall 22 can be 55-100 mm, for example, F = 60 mm, or F = 90 mm.

[0142] In one specific embodiment, the second protective sidewall 22 may include multiple layers. For example, as shown in Figures 2a, 2b, and 3, the second protective sidewall 22 includes two layers, referred to herein as a double-layer sidewall. The double-layer sidewall may include an inner protective wall 221 located on the inner layer and an outer protective wall 222 located on the outer layer. The bottom of the outer protective wall 222 is higher than the bottom of the inner protective wall 221. With the ground as a reference, the distance between the bottom of the outer protective wall 222 and the ground is greater than the distance between the bottom of the inner protective wall 221 and the ground.

[0143] The height difference D4 between the outer protective wall 222 and the inner protective wall 221 may be 3 to 20 mm. For example, in the example shown in FIG3 , D4 = 5 mm. In the example shown in FIG4 , D4 = 15 mm.

[0144] In some feasible technical solutions, the cutting mechanism 3 and first protective cover 1 of the smart lawn mower can be raised and lowered to adapt to various operating conditions. As shown in Figures 2a and 3, the cutting mechanism 3 and first protective cover 1 are in the first gear position, for example, when the cutting mechanism 3 is 30 mm from the ground. At this point, the bottom of the first protective side wall 12 is lower than the inner protective wall 221, and the height difference D1 can be 7 to 10 mm. As shown in Figure 4, the cutting mechanism 3 and first protective cover 1 are in the second gear position. Assuming the cutting mechanism 3 is 40 mm from the ground, there is almost no height difference between the bottom of the first protective side wall 12 and the bottom of the inner protective wall 221. As shown in Figure 5, the cutting mechanism 3 and first protective cover 1 are in the third gear position. Assuming the cutting mechanism 3 is 50 mm from the ground, the bottom of the first protective side wall 12 is higher than the inner protective wall 221, and the height difference D1 between the first protective side wall 12 and the inner protective wall 221 can be 8 to 12 mm. As shown in Figure 6, the cutting mechanism 3 and the first protective cover 1 are in the fourth gear state. Assume that the cutting mechanism 3 is 60 mm from the ground; at this time, the bottom of the first protective side wall 12 is higher than the inner protective wall 221, and the height difference D1 between the first protective side wall 12 and the inner protective wall 221 can be 18 to 22 mm.

[0145] As can be seen from Figures 2a, 3, 4, 5, and 6, in the states shown in Figures 2a and 3, and in the state shown in Figure 4, the inner protective wall 221 of the second protective cover 2 is higher than the first protective side wall 12 of the first protective cover 1, or is flush with the first protective side wall 12. For example, a person's feet or hands can easily reach from the bottom of the second protective cover to the first protective side wall 12. Due to the effect of the folded edge 122 at the bottom of the first protective side wall 12, the depth of penetration into the bottom of the device body is extended. Even if a person's fingers reach under the folded edge, they are unlikely to touch the tool above due to the stop of the folded edge. In the states shown in Figures 5 and 6, the inner protective wall 221 of the second protective cover 2 is lower than the first protective side wall 12, and the tool and the first protective cover 1 are above, providing sufficient safety. For example, a person's hands or feet are unlikely to touch the tool.

[0146] The wall thickness of the inner protective wall 221 and the outer protective wall 222 may be equal or different. Figures 2a and 3 show the case where the wall thickness of the inner protective wall 221 and the outer protective wall 222 are equal. Figure 2a shows that the second protective cover includes a second upper protective wall 21 and a second protective side wall 22 of an integral structure. The second protective side wall 22 can be formed into the inner protective wall 221 and the outer protective wall 222 through an integral molding process or a subtractive process. In the example shown in Figure 3, the second upper protective wall 21 and the inner protective wall 221 can be an integral structure, and the outer protective wall 222 can be connected to the inner protective wall through an intermediate piece. As shown in Figure 3, the intermediate piece can be a component similar to the shape of an "n".

[0147] The wall thickness of the inner protective wall 221 and the outer protective wall 222 should not be too thin, as this can easily cause deformation and reduce safety, nor too thick, as this can increase weight. As shown in Figure 3, for example, the wall thickness M of the inner protective wall can be 2 to 8 mm. The wall thickness N of the outer protective wall can be 2 to 8 mm. In the example shown in Figure 2a, the wall thickness of the inner protective wall 221 and the outer protective wall 222 are both 6.5 mm. In the example shown in Figure 3, the wall thickness of the protective wall 221 and the outer protective wall 222 are both 3 mm.

[0148] The gap V between the inner protective wall 221 and the outer protective wall 222 can be 15 to 30 mm. For example, FIG2a shows V = 18 mm. FIG3 shows V = 25 mm. The gap between the inner protective wall 221 and the outer protective wall 222 effectively increases the thickness of the second protective side wall 22, thereby improving the protective effect of the second protective cover 2.

[0149] Furthermore, as shown in Figure 2a, the inner protective wall 221 can be a structure that is thicker at the top and thinner at the bottom. Referring to Figure 2a, a first slope is provided near the bottom of the outer protective wall 222, on the inner sidewall facing the inner protective wall 221, causing the outer protective wall 222 to gradually narrow from top to bottom. A second slope is provided on the outer sidewall of the inner protective wall 221, at a height corresponding to the first slope, facing the outer protective wall 222, causing the inner protective wall 221 to gradually narrow from top to bottom and then extend downward at this narrowed thickness.

[0150] In this embodiment, the second protective cover 2 can be the upper cover of the device body or the base of the device body. Furthermore, if the second protective cover 2 is the base of the device body, the first protective cover 1 and the cutting mechanism 3 are disposed on the base, and the first protective cover 1 and the cutting mechanism 3 can move up and down synchronously relative to the base. Specifically, the first protective cover 1 and the cutting mechanism 3 can move relative to the base to change the distance between the cutting mechanism 3 and the ground. This allows the user to adjust the distance between the cutting mechanism 3 of the intelligent lawn mower and the ground according to the desired mowing height.

[0151] The following describes the protection provided by the solution of this embodiment in conjunction with specific scenarios. Referring to the examples shown in Figures 7a to 7d, a mechanical handling finger is used to simulate a human finger. In the first position, as shown in Figure 7a, the wrist of the handling finger 100 is blocked by the outer protective wall 222 and the inner protective wall 221, so the first knuckle can only extend to the bottom of the folded edge 122. The action of the folded edge 122 prevents the finger from bending upward and thus does not contact the tool. In the second position, as shown in Figure 7b, similar to the first position, the first knuckle extends to the bottom of the folded edge 122. The action of the folded edge prevents the finger from bending upward and thus does not contact the tool. In the third and fourth positions, as shown in Figures 7c and 7d, the wrist of the handling finger 100 is blocked by the outer protective wall 222 and the inner protective wall 221, allowing the finger to extend into the interior of the second protective shield. However, the tool and the first protective shield 1 are both located above. Even if the finger bends upward, it still cannot contact the tool due to the presence of the folded edge 122.

[0152] Figures 7a to 7d show the finger protection state diagrams corresponding to the second protective side wall 22 of the structure shown in Figure 2a. The height difference between the inner protective wall 221 and the outer protective wall 222 in the second protective side wall of the structure shown in Figure 2a is greater than the height difference between the inner protective wall 221 and the outer protective wall 222 of the structure shown in Figure 3. Figures 8a to 8d show the finger protection state diagrams corresponding to the second protective side wall 22 of the structure shown in Figure 3. It can be seen from Figures 8a to 8d that the inner protective wall 221 plays a role in increasing the thickness of the second protective side wall, thereby lengthening the depth of the hand insertion. The situations of the fingers in different gear states are similar to those described in Figures 7a to 7d above, and will not be repeated here.

[0153] It should be noted that the cutting mechanism 3 of some smart lawn mowers is tilted. The front of the cutting mechanism is slightly higher than the rear of the cutting mechanism, or the rear of the cutting mechanism is slightly higher than the front of the cutting mechanism. The front of the cutting mechanism corresponds to the front of the device body of the smart lawn mower, and the rear of the cutting mechanism corresponds to the rear of the device body of the smart lawn mower. Figure 8d shows that when the cutting mechanism is tilted and the tool is tilted, the finger simulating a human finger is unlikely to touch the tool due to the presence of the folded edge. This shows that the solution provided by the embodiment of the present application has a good protective effect.

[0154] Figure 9 shows the second protective sidewall 22 of the structure shown in Figure 2a, protecting an adult foot. The adult foot size in Figure 9 is a statistical value, such as the average value of 85% of adult feet, and is not specifically limited in this embodiment. As shown in Figure 9, the adult foot is directly stopped by the inner protective wall 221 and cannot extend further. Therefore, regardless of the position of the cutting tool and the first protective shield on the cutting mechanism, the adult foot will be stopped by the inner protective wall 221.

[0155] Figures 10a-10c illustrate the protective states of an adult's foot corresponding to the second protective sidewall 22 of the structure shown in Figure 3 (the height difference between the inner and outer protective walls is not large). In the first position, as shown in Figure 10a, the adult's foot is stopped by the first protective sidewall 12. In the second position, not shown, similar to the first position, the first protective shield and the cutter are not raised to a high level, so the adult's foot is still stopped by the first protective sidewall 12. In the third position, as shown in Figure 10b, the height of the cutter and the first protective shield allows the adult's foot to enter. However, due to the stops of the inner and outer protective walls 221 and 222, as well as the folded edge of the first protective sidewall 12, the adult's foot cannot reach the cutter. In the fourth position, as shown in Figure 10c, the inner and outer protective walls 221 and 222 limit the depth of the adult's foot, and the cutter is positioned higher, preventing the adult's foot from reaching the cutter.

[0156] Figures 11a and 11b show the standing child foot protection state diagram corresponding to the second protective side wall 22 of the structure shown in Figure 2a. Children's feet are smaller than adult feet in height and length. In the first gear state, as shown in Figure 11a, neither the inner protective wall 221 nor the outer protective wall 222 can serve as a stop, but the first protective side wall 12 can stop the child's feet from continuing to extend in. In the second gear state, as shown in Figure 11b, the height of the tool and the first protective cover is raised, and the child's foot can continue to extend in without being stopped by the first protective side wall 12, but the longer inner protective wall 221 limits the depth of extension. The depth of extension of the child's foot is not deep and the height of the tool is raised, so the child's foot cannot touch the tool. The same is true in the third and fourth gear states.

[0157] Figures 12a-12c illustrate the second protective sidewall 22 of the structure shown in Figure 3, corresponding to the standing child's foot protection state. In the first position, as shown in Figure 12a, the inner and outer protective walls 221 and 222 have a large clearance from the ground and cannot act as a stop, so the first protective sidewall 12 blocks the child's foot. In the second position, as shown in Figure 12b, the cutting tool and the first protective shield are raised, allowing the child's foot to extend further inside, with the front end of the child's foot located below the folded edge of the first protective sidewall 12. Even if the inner and outer protective walls have a large clearance from the ground and the child's foot can tilt upward, the folded edge will prevent the child's foot from reaching the cutting tool. In the third position, as shown in Figure 12c, the cutting tool and the first protective shield are raised, providing more space at the bottom, allowing the child's foot to extend further, but the cutting tool is too high to allow the child's foot to reach the cutting tool. The same applies to the fourth position.

[0158] Figure 13 shows the second protective sidewall 22 of the structure shown in Figure 2a in a kneeling position. Figure 14 shows the second protective sidewall 22 of the structure shown in Figure 3 in a kneeling position. In the first position, the inner and outer protective walls 221 and 222 prevent a child's foot from contacting the cutting tool. The same applies to the second, third, and fourth positions.

[0159] If the structure and size of the second protective cover are well designed, the safety protection requirements can be met without setting a folding edge on the first protective side wall of the first protective cover. That is, the present application also provides an intelligent lawn mower. As shown in Figure 15, the intelligent lawn mower includes: an equipment body, a cutting mechanism 3, a first protective cover 1 and a second protective cover 2. Along the direction of travel of the equipment body, the equipment body has a front side and a rear side. The cutting mechanism 3 is arranged at the bottom of the equipment body and close to the target side of the equipment body, and the target side is the front side or the rear side. The first protective cover 1 is arranged above the cutting mechanism 3, and the first protective cover 1 has a first protective side wall 12 extending downward; the bottom of the first protective side wall 12 is lower than the tool 4 on the cutting mechanism 3. The second protective cover 2 is arranged above the first protective cover 1, and the portion of the second protective cover 2 corresponding to the target side of the equipment body has a second protective side wall 22 extending downward. Among them, the second protective cover 2 extends the distance of the target side of the equipment body from the tool 4 in the horizontal direction.

[0160] The second protective side wall can be a side wall with a certain thickness, or it can include a multi-layer side wall. For example, in the example shown in Figure 15, the second protective side wall 22 is a double-layer side wall. The double-layer side wall includes an inner protective wall 221 located on the inner side and an outer protective wall 222 located on the outer side. The bottom of the outer protective wall 222 is higher than the bottom of the inner protective wall 221. Referring to the content described above, the smart lawn mower has multiple gear states, such as: first, second, third, and fourth gear states. Among them, in the first gear state, the tool 4 and the first protective cover 1 are at the lowest height from the ground, and the second, third, and fourth gears increase in sequence. For example, in the first gear state, the bottom of the inner protective wall 221 is higher than the bottom of the first protective side wall 12, as shown in the state of Figure 15.

[0161] Compared with the embodiment mentioned above, there is no folded edge on the first protective cover in this embodiment, so in this embodiment, the distance between the inner protective wall and the outer protective wall and the ground needs to be limited to provide better protection. For example, in a feasible technical solution, the height D2 of the bottom of the inner protective wall 221 from the ground can be 24 to 26 mm; such as D2 = 25 mm. The height D3 of the bottom of the outer protective wall 222 from the ground is 42 to 46 mm; such as D3 = 45 mm. In the horizontal direction, the distance F between the outer wall of the outer protective wall and the tip of the tool is 58 to 62 mm, such as F = 60 mm.

[0162] Furthermore, a height difference m between the bottom of the first protective side wall 12 and the cutter 4 is 7-15 mm. For example, m=14 mm.

[0163] In another feasible technical solution, similar to the structure of the second protective side wall shown in FIG3 above, the height difference between the inner and outer protective side walls is not large. Because there is no folded edge on the first protective cover, the thickness of the second protective side wall can be increased, and / or the distance between the second protective side wall and the tool in the horizontal direction can be increased. Increasing the thickness of the second protective side wall will increase the overall mass of the equipment body. Therefore, in this embodiment, as shown in FIG16 , the bottom (ie, the lowest position) of the second protective side wall is 43 to 46 mm from the ground at a height d; for example, d = 45 mm. Correspondingly, in the horizontal direction, the distance F between the outer side wall of the outer protective wall and the tip of the tool is 88 to 92 mm. For example, F = 90 mm.

[0164] Furthermore, in each of the above embodiments, the cutter 4 can extend outward horizontally or at an angle. For example, in Figure 8d, when the cutter 4 extends outward at an angle, the angle s between the angle and the horizontal is 5 to 15 degrees. Arranging the cutter 4 at an angle effectively improves the chip removal function of the cutting mechanism 3.

[0165] The intelligent lawn mower in this application may be a lawn mower robot or a manual lawn mower, etc.

[0166] FIG17 is a schematic structural diagram of an intelligent lawn mower with a cutting area located inside provided in an embodiment of the present application, as shown in FIG17 .

[0167] Another embodiment of the present application provides an intelligent lawn mower, which includes a device body and a cutting mechanism 3, wherein the cutting mechanism 3 is disposed at the bottom of the device body. The bottom of the device body is also provided with a travel wheel assembly 40 for driving the device body. The travel wheel assembly 40 includes a front wheel assembly 41 and a rear wheel assembly 42. The front wheel assembly 41 is a steering wheel that can rotate 360 ​​degrees, and the rear wheel assembly 42 is a driving wheel assembly that can provide forward propulsion. When the travel wheel assembly 40 drives the device body to move, the cutting mechanism can cut and trim the grass in the target area it passes through.

[0168] To prevent the cutting mechanism 3 of the smart lawn mower from injuring people when it is in operation, the cutting mechanism 3 is often located in the center of the bottom of the device body, with the end of the cutting mechanism 3 being a certain distance from the edge of the device body. This distance is the safety distance. If a person's limbs accidentally reach the bottom of the smart lawn mower, no harm will be caused within the safety distance. Therefore, if the smart lawn mower is to be safer, the larger the safety distance, the better. However, when the smart lawn mower reaches the edge of the target area to be cut, if there is an obstacle at the edge of the target area to be cut, such as a fence or wall, for the safety of the smart lawn mower, there will be a certain walking gap between the smart lawn mower and the obstacle during its movement. In this case, the grass within the safety distance and the walking gap area cannot be cut by the smart lawn mower, resulting in the problem of excessive grass remaining at the edge of the cutting area.

[0169] To address the above-mentioned issues, in one practicable embodiment of the present invention, the device body has a front side, a rear side, and left and right sides along its travel direction. The front side is located in the direction indicated by arrow Y in Figure 17 , and the right side is located in the direction indicated by arrow X in Figure 17 . Along the width of the device body, the device body has a left side and a right side. The cutting mechanism 3 is located between the front wheel assembly 41 and the rear wheel assembly 42, and is offset toward the right or left side of the bottom of the device body. The target side can be either the left or right side. Alternatively, both the left and right sides of the device body can be the target side. The cutting mechanism 3 has a first cutting area relative to the device body. The first cutting area can be considered to be the area that can be cut by the blades on the cutting mechanism 3 when the cutting mechanism 3 rotates. The edge of the first cutting area is the blade tip circle formed by the rotation of the blades. Because the cutting mechanism 3 is eccentrically positioned toward the target side of the device body, when the intelligent lawn mower travels to the edge of the cutting area, the cutting mechanism 3 can be closer to the edge of the cutting area, enabling it to fully cut the grass at the edge of the cutting area, thereby ensuring that less grass is left at the edge of the cutting area and that the grass in the cutting area is cut more cleanly.

[0170] FIG18 is a partial cross-sectional view of the intelligent lawn mower provided in an embodiment of the present application. Please refer to FIG18 in conjunction with FIG17 .

[0171] At the same time, in order to ensure the safety protection of the smart lawn mower for people, the smart lawn mower also includes a second protective cover 2, which is located on the outside of the cutting mechanism 3 and has an inner protective wall 221 and an outer protective wall 222. The height of the inner protective wall 221 from the ground is lower than the height of the outer protective wall 222 from the ground, and there is a gap between the inner protective wall 221 and the outer protective wall 222. The gap can be a conveying groove 224, and the conveying groove 224 can accommodate human fingers to enter, so the width of the second protective cover 2 is limited, that is, the second protective cover 2 extends the distance from the target side of the equipment body to the cutting mechanism 3 in the horizontal direction.

[0172] Moreover, the height of the inner protective wall 221 is lower than that of the outer protective wall 222, that is, the bottom of the second protective cover 2 is a slope. Then, when a person's foot extends from the target side to the bottom of the device body, although the position of the toes can extend to the inner side of the outer protective wall 222, the inner protective wall 221 can prevent the foot from continuing to extend, thus ensuring that the person's foot will not be injured. Alternatively, when a person's hand extends from the target side to the bottom of the device body, if the wrist is blocked by the outer protective wall 222, the wrist will bend downward, and the palm will extend downward or diagonally downward. Since the second protective cover 2 has a certain width, the fingertips will abut against the bottom of the inner protective wall 221 at this time and will not touch the cutting area; if the wrist is not blocked by the outer protective wall 222, since the bottom of the second protective cover 2 is a slope, the person's hand will extend diagonally downward along the direction of the bottom of the second protective cover 2 to the bottom of the device body. During the extension process, the hand will not directly touch the cutting area, but will be blocked by the inner protective wall 221. Generally, after sensing the obstruction of the inner protective wall 221, the person will immediately retract the hand to avoid touching the cutting area.

[0173] It should be noted that it is common knowledge that the cutting mechanism 3 is provided at the bottom of the smart lawn mower. Generally, people will not intentionally extend their limbs into the bottom of the smart lawn mower during operation. Extending limbs into the bottom of the smart lawn mower is usually an unconscious behavior. Therefore, the inclined bottom of the second protective cover 2 can prompt the user through touch perception when the user's limbs are extended into the bottom of the smart lawn mower that the limbs or other body parts have entered the bottom of the smart lawn mower. Usually, after sensing the prompt, the user will pull the limbs that have entered the bottom of the smart lawn mower out from the bottom of the device body to ensure safety.

[0174] In this embodiment, the width of the second protective cover 2 is B, B>20mm. The length of an adult's hand is about 20mm, and the setting of B>20mm can effectively interfere with the insertion of the hand when the hand is inserted from the bottom of the smart lawn mower, giving the person a prompt.

[0175] In this embodiment, the distance between the outer protective wall 222 and the cutting area is F, 30mm≤F≤55mm, F>B, so that there is a certain distance between the cutting mechanism 3 and the second protective cover 2, preventing the second protective cover 2 from interfering with the rotation operation of the cutting mechanism 3, and also preventing people's arms from entering from the bottom of the equipment body and touching the cutting mechanism 3.

[0176] In this embodiment, the height difference between the bottom of the inner protective wall 221 and the bottom of the outer protective wall 222 is D4, and 10 mm ≤ D4 ≤ 25 mm.

[0177] It is understandable that if the height of the bottom of the inner protective wall 221 is less than the thickness of a finger, the inner protective wall 221 can ensure that human hands cannot reach the bottom of the device body, ensuring that human hands will not be injured. However, the height of the inner protective wall 221 cannot be too low. If the height of the inner protective wall 221 is too low, the smart lawn mower will collide with the grass in the area to be cut when it is moving. The grass in the area to be cut will hinder the smart lawn mower from moving forward, thereby increasing the load on the walking wheel assembly 40 and causing power consumption. In addition, if the ground in the area to be cut is uneven, it will also affect the movement of the smart lawn mower. Therefore, in this embodiment, the height of the bottom of the inner protective wall 221 is D2, 30mm≤D2≤55mm, not only will the uneven road surface or grass not affect the movement of the smart lawn mower, but the grass can also be fully cut.

[0178] The intelligent lawn mower of this embodiment can ensure that less grass is left in the area to be cut by means of motor offset, and the setting of the carrying groove 224 of the second protective cover 2 not only provides carrying support but also limits the width of the second protective cover 2. The inclined bottom surface and width of the second protective cover 2 can ensure the safety of users.

[0179] In an embodiment that can be implemented in the present application, referring to FIG18 in conjunction with FIG17 , one possible structure of the second protective shield 2 is that the second protective shield 2 can be single-walled, with a transfer groove 224 formed at the bottom of the second protective sidewall. The outer side of the second protective sidewall is an outer protective wall 222, and the inner side is an inner protective wall 221. Another possible structure of the second protective shield 2 is that the second protective sidewall comprises alternately arranged layers of walls, with the gap between the outermost outer protective wall 222 and the adjacent walls forming the transfer groove 224. In this embodiment, the second protective sidewall comprises two alternately arranged layers of walls, referred to herein as a double-layer sidewall. This double-layer sidewall may include an inner protective wall 221 located on the inner layer and an outer protective wall 222 located on the outer layer. The bottom of the outer protective wall 222 is higher than the bottom of the inner protective wall 221. With the ground as a reference, the distance between the bottom of the outer protective wall 222 and the ground is greater than the distance between the bottom of the inner protective wall 221 and the ground.

[0180] To further enhance the protection provided by the intelligent lawn mower, referring to FIG. 18 , one possible embodiment of the present invention includes a first protective cover 1. The first protective cover 1 is positioned between the second protective cover 2 and the cutting mechanism 3, and is positioned above the cutting mechanism 3. The first protective cover 1 includes a downwardly extending first protective sidewall 12, the bottom of which is lower than the cutting edge of the cutting mechanism 3. If a person's limbs penetrate the bottom of the intelligent lawn mower, contact the second protective cover 2, and continue to extend toward the bottom of the intelligent lawn mower without retracting, the first protective sidewall prevents the limbs from contacting the cutting mechanism 3, thus protecting the limbs from contacting the cutting area. Furthermore, if debris such as branches is present in the cutting area and the debris passes over the second protective cover 2 and continues to extend toward the bottom of the intelligent lawn mower while the intelligent lawn mower is in motion, the first protective sidewall prevents the debris from further extending, preventing damage to the cutting mechanism 3.

[0181] Furthermore, the first protective side wall 12 can be straight or arc-shaped. For example, in one embodiment provided in this application, the first protective side wall 12 is arc-shaped and is arranged on the outside of the arc section of the blade tip circle of the cutting mechanism 3, and the curvature radius of the first protective side wall 12 is greater than the radius of the blade tip circle. The plane where the blade tip circle is located can be considered as the above-mentioned cutting surface. The first protective side wall 12 extends in a direction close to the ground. The first protective side wall 12 can not only protect the user, but also protect the rotating cutting mechanism 3.

[0182] The first protective sidewall 12 can adapt not only to the shape of the cutting mechanism 3 but also to the shape of the device body. For example, if the device body is square, the first protective sidewall 12 can be linear, parallel to a certain tangent line of the cutting mechanism 3 (parallel to the longitudinal direction of the device body) and located on one side of the cutting mechanism 3. If the device body is circular, the first protective sidewall 12 can be curved.

[0183] In a feasible embodiment, a feasible structure of the first protective cover 1 is that the first protective cover 1 also includes a first upper protective wall 11, one end of the first upper protective wall 11 is connected to the bottom of the equipment body, and the other end located on the target side is connected to the upper end of the first protective side wall, that is, the first protective cover 1 is "L"-shaped.

[0184] Figure 19 is a partial cross-sectional view of the simulated moving intelligent lawn mower provided in an embodiment of the present application, Figure 20 is a partial cross-sectional view 1 of the simulated hand reaching into the bottom of the device body provided in an embodiment of the present application, and Figure 21 is a partial cross-sectional view 2 of the simulated hand reaching into the bottom of the device body provided in an embodiment of the present application. Please refer to Figures 19 to 21.

[0185] On some intelligent cutting machines, the blade disc used for cutting is capable of being raised and lowered. The raiseable blade disc can cut the grass to the desired length according to the user's needs. When the intelligent cutting device is not in operation, the blade disc can be raised to the highest position, which not only ensures the safety of personnel but also ensures that the blade disc is not easily damaged by foreign objects. The cutting mechanism 3 of this embodiment can also be a raiseable cutting mechanism 3. In order to ensure that it can adapt to various working conditions, another possible structure of the first protective cover 1 is that the first protective cover 1 includes a first upper protective wall 11 and a first protective side wall 12. The first upper protective wall 11 is connected to the fixed shaft sleeve at the top of the cutting mechanism 3, and the end on the target side is connected to the upper end of the first protective side wall 12. The bottom of the first protective side wall 12 is provided with a folded edge 122 that is lower than the cutting mechanism 3 and extends toward the inside of the first protective cover 1. There is a gap between the end of the folded edge 122 and the cutting area of ​​the cutting mechanism 3 in the horizontal direction. This gap ensures that the first protective cover 1 does not interfere with the operation of the cutting mechanism 3.

[0186] When the intelligent lawn mower is in operation, as shown in Figures 21 to 23, if the first protective cover 1 follows the cutting mechanism 3 and descends below the inner protective wall 221 of the second protective cover 2, even if a person's limbs pass through the second protective cover 2, they will still be blocked by the first protective side wall. Even if they pass through the first protective side wall, the folded edge 122 extends the depth of their penetration into the bottom of the device body. Even if a person's fingers reach under the folded edge 122, they will be extremely unlikely to touch the upper cutting blade. If the first protective cover 1 follows the cutting mechanism 3 and descends to be flush with the inner protective wall 221 of the second protective cover 2, the folded edge 122 can further protect the person's limbs. When the intelligent lawn mower is not in operation, the first protective cover 1 follows the cutting mechanism 3 and ascends to a point where the first protective side wall is higher than the bottom of the inner protective wall 221. At this point, even if a person's limbs pass through the second protective cover 2 and reach the bottom of the device body, they will not touch the cutting area. If a person's limbs bend upward after passing through the second protective cover 2, their fingertips will also be blocked by the folded edge 122.

[0187] It should be noted that when the cutting mechanism 3 cannot be raised or lowered, the bottom of the first protective side wall can also be provided with a folded edge 122. In addition, if the cutting mechanism 3 is offset on both sides of the bottom of the device body, then each offset cutting mechanism 3 is correspondingly provided with a first protective side wall.

[0188] Further, please refer to Figure 18. The folded edge 122 is located on the side of the cutting mechanism 3 facing the ground. The edge of the folded edge 122 facing the ground can be considered as the outer edge, and the edge on the opposite side is the inner edge. In the vertical direction, the gap between the inner edge of the folded edge 122 and the tool is M. In a specific embodiment, the distance M between the inner edge of the folded edge 122 and the tool can range from 4 to 10 mm. For example, the distance M can be 7 mm. Setting a gap between the inner edge of the folded edge 122 and the tool can not only effectively improve the chip removal ability of the cutting mechanism 3, but also prevent the debris accumulated on the folded edge 122 from being cut a second time, causing additional resistance.

[0189] Figure 22 is a structural schematic diagram 1 of the smart lawn mower with the cutting area located on the outside provided in an embodiment of the present application, and Figure 23 is a structural schematic diagram 2 of the smart lawn mower with the cutting area located on the outside provided in an embodiment of the present application. Please refer to Figures 18, 22 and 23.

[0190] In a feasible embodiment of the present invention, a feasible position of the cutting mechanism 3 is that the front wheel assembly 41 and the rear wheel assembly 42 are connected end to end to form a closed shape, then the space within the closed shape is the inner side, and the space outside the closed shape is the outer side, that is, the running wheel assembly divides the bottom of the device body into the inner side or the outer side of the running wheel assembly 40. The cutting mechanism 3 is located on the inner side, and the diameter of the cutting mechanism 3 is greater than half the width of the bottom of the device body. The outer side of the second protective cover 2 is flush with the outer side of the corresponding side of the device body and the outer side of the rear wheel assembly 42. Not only can the grass in the cutting area be fully cut to ensure that less grass is left at the edge, but the overall appearance of the device body can also be ensured.

[0191] Another possible position of the cutting mechanism 3 is that the front wheel assembly 41 has a front wheel rotation area relative to the device body, and the cutting mechanism 3 has a first cutting area relative to the device body, and part of the first cutting area is located on the outside of the rear wheel assembly 42 and the front wheel rotation area. That is to say, part of the first cutting area is located on the inside and part is located on the outside. In this way, when the intelligent cutting device is moving, the first cutting area covers the grass outside the walking wheel assembly 40, further shortening the distance between the first cutting area and the boundary of the area to be mowed, thereby further reducing the amount of grass left at the boundary. In order to ensure safety, the outer side of the second protective cover 2 exceeds the outer side of the rear wheel assembly so that the first cutting area is covered within the second protective cover. At this time, the second protective cover 2 can be a side structure of the upper cover of the device body or a separate part installed on the side of the device body.

[0192] In order to increase the mowing efficiency and the mowing area, in an achievable embodiment of the present invention, the intelligent lawn mower further includes a second cutting mechanism. The second cutting mechanism has a second cutting area relative to the device body. The second cutting area is located within the walking wheel assembly, and the diameter of the second cutting mechanism is 1.5 times the diameter of the cutting mechanism. Since the cutting mechanism is offset to one side of the device body and is located between the front wheel set 41 and the rear wheel set 42, the diameter of the cutting mechanism is limited to be relatively small, and the area of the first cutting area is small. However, the second cutting mechanism is located in the area inside the walking wheel assembly 40, and the space is relatively large. Therefore, the diameter of the second cutting mechanism can be larger than the diameter of the cutting mechanism 3. In this embodiment, the diameter of the second cutting mechanism is 1.5 times the diameter of the cutting mechanism, so that the cutting area is 3 times larger than the first cutting area. This can not only ensure that there is less remaining grass at the boundary of the to-be-cut area, but also improve the cutting efficiency of the intelligent cutting machine, shorten the working line, and save electric energy.

[0193] Another achievable structure of the cutting mechanism 3 is that a cutting component is eccentrically arranged on both sides of the bottom of the device body, and the cutting areas of the two cutting components do not interfere with each other. When encountering a narrow strip-shaped to-be-cut area, the intelligent cutting mechanism 3 only needs to make one pass to complete the cutting of all the grass on both sides, thereby improving efficiency and saving electric energy. At this time, the first protective cover 1 is in the shape of "冂".

[0194] As an optional solution, please refer to FIG. 23. There is a distance L between the main cutting area and the side cutting area or between two cutting areas, and L≥10mm. The 10mm spacing can not only accommodate the installation error, but also make the two cutting areas as close as possible without interfering with each other, which not only ensures that the cutting range is as large as possible, but also ensures sufficient cutting and less remaining grass.

[0195] FIG. 24 is a schematic diagram of the tool and the first protective cover in the 40th gear state in the intelligent lawn mower provided by the embodiment of the present application. Please refer to FIG. 1 and see FIG. 24 in combination.

[0196] In another embodiment of the present application, an intelligent lawn mower is provided, comprising: a machine body, a cutting mechanism 3, a first protective cover 1, and a second protective cover 2. The cutting mechanism 3 has a cutting area relative to the machine body. The cutting area can be considered to be the area that can be cut by the cutting tools on the cutting mechanism 3 when the cutting mechanism 3 rotates. The edge of the cutting area is the tip circle formed by the rotating cutting tools. Along the width of the machine body, the machine body has a left side and a right side. The cutting mechanism 3 is eccentrically positioned at the bottom of the machine body, near the target side of the machine body, where the target side is the left or right side. The first protective cover 1 is positioned above the cutting mechanism 3 and has a downwardly extending first protective sidewall 12. The bottom of the first protective sidewall 12 is lower than the cutting tools on the cutting mechanism 3. The second protective cover 2 is positioned above the first protective cover 1 and has a downwardly extending second protective sidewall 22 on the portion of the second protective cover 2 corresponding to the target side of the machine body. The distance F between the outer side of the second protective sidewall 22 and the outermost tip of the cutting mechanism 3 is 45 mm ≤ F ≤ 55 mm. In the embodiment, F=50mm. The larger F is, the more conducive it is to protecting the limbs extending into the bottom end of the target side of the device body. However, the larger F is, the higher the cutting efficiency will be. Therefore, under the premise of ensuring the safety of the limbs, the smaller F is, the better.

[0197] It is understood that the smaller the distance G between the bottom of the second protective side wall 22 and the ground, the better. However, if the height G of the bottom of the second protective side wall 22 is too small, while it can effectively prevent limbs from entering, the second protective side wall 22 will contact the grass in the area to be cut during the intelligent cutting device's movement. Not only will it be blocked by the grass, but it will also be blocked by the road when traversing uneven roads, causing the intelligent cutting device to have difficulty moving. Therefore, the height G of the bottom of the second protective side wall 22 cannot be too low. In this embodiment, G = 60 mm. Generally, limbs enter the bottom of the target side of the device body when the person is standing or squatting. In this case, if the limb wants to enter the bottom of the device body, it will extend diagonally downward from the bottom of the target side of the device body. G = 60 mm effectively prevents the wrist from directly passing diagonally downward through the bottom of the device body when the person is standing or squatting, and this distance does not hinder the movement of the intelligent lawn mower.

[0198] To further ensure the safety of a limb extending into the bottom end of the target side of the device, in one feasible embodiment of the present invention, the second protective sidewall 22 has a protective structure 223 on the side facing the first protective sidewall 12. The underside of the protective structure 223 can be rotated toward the first protective sidewall 12, and the bottom end of the protective structure 223 is lower than the bottom end of the second protective sidewall 22. When a limb enters the bottom end of the target side of the device, it will contact the protective structure 223. Often, a limb inadvertently extends into the bottom end of the target side of the device without realizing it. Therefore, when a limb reaches the bottom end of the device and contacts the protective structure 223, the user will realize that the limb has entered the bottom end of the device and will retract the limb to avoid danger. Furthermore, the protective structure 223 can extend the horizontal distance between the target side of the device and the cutting tool of the cutting mechanism 3, so that the limb needs to extend a certain distance before contacting the cutting tool during the process of extending toward the bottom end of the target side of the device, thereby preventing the limb from easily contacting the cutting tool and being cut by the cutting tool.

[0199] Specifically, referring to Figure 24, as an achievable embodiment, the protective structure 223 includes a bracket 2231 and a rotating plate 2232, wherein one end of the bracket 2231 extends horizontally and is arranged on the side of the second protective side wall 22 facing the first protective side wall 12, and the other end extends vertically to be flush with the bottom end of the second protective side wall 22. The end of the bracket 2231 extending in the horizontal direction extends the distance between the second protective side wall 22 and the tool of the cutting mechanism 3.

[0200] The rotating plate 2232 is rotatably mounted on the vertically extending end of the bracket 2231 and faces one side of the second protective sidewall 22. The bottom end of the rotating plate 2232 is lower than the bottom end of the second protective sidewall 22. The horizontal distance between the rotating axis of the rotating plate 2232 and the second protective sidewall 22 is 0, 0≤3mm, so that the rotating plate 2232 can rotate about the rotating axis toward the second protective sidewall 22 until it abuts the second protective sidewall. Thus, when a limb enters the bottom end of the target side of the device body, the limb can touch the rotating plate 2232 to prompt the user that the limb has entered the bottom end of the device body. When the limb continues to extend toward the bottom end of the device body, the rotating plate 2232 will rotate with the limb until it abuts the second protective sidewall 22. At this point, the rotating plate 2232 can prevent the limb from further entering. As an alternative, when the rotating plate 2232 rotates to abut the second protective sidewall 22, the distance between the bottom end of the rotating plate 2232 and the ground is between 50 mm and 55 mm, and can be 52 mm or 53 mm. The bottom end of the rotating plate 2232 guides the limb to continue extending diagonally downward along the bottom end of the rotating plate 2232 until it touches the ground.

[0201] Although the bottom of the rotating plate 2232 serves to guide the movement of the limb, there is still a risk of the limb touching the cutting area if the end of the limb bends upward after reaching the bottom of the rotating plate 2232 and passes over the bottom of the first protective side wall 12. To prevent this risk, in some feasible embodiments of the present invention, a protective plate 123 is provided on the side of the first protective side wall 12 facing the cutting mechanism 3. When the limb passes over the bottom of the first protective side wall 12 and bends upward, the end of the limb can be blocked by the protective plate 123, thereby preventing it from being cut.

[0202] Specifically, referring to FIG. 24 , in some achievable embodiments of the present invention, the protective plate 123 may include a guide portion and a longitudinal portion, wherein one end of the guide portion is connected to the first protective sidewall 12 at an acute angle thereto, and one end of the longitudinal portion is connected to the other end of the guide portion, which extends toward the ground until it is flush with the bottom of the first protective sidewall. The inclined guide portion not only avoids the cutting area but also serves as a guide structure for the grass to be cut, allowing the grass to enter the gap between the protective plate 123 and the cutting mechanism 3 and then extend along the protective plate 123, thereby preventing the protective plate 123 from blocking the grass to be cut from entering the cutting area. In addition, the inclined structure creates a accommodating cavity with an inclined top between the protective plate 123 and the first protective side wall 12. When the limb passes over the second protective side wall 22, the end of the limb will be blocked by the protective plate 123 and enter the accommodating cavity. At this time, the limb will be blocked by the inclined top of the accommodating cavity when it extends upward, and the limb will slide down to the bottom of the protective plate 123 and be flush with the first protective side wall 12 in the process of moving along the top of the accommodating cavity. At this time, the end of the limb becomes horizontally extended, and due to physiological characteristics, limbs such as hands or feet cannot be reversed. Joint extension, or because the protective plate 123 extends the distance between the protective side wall and the cutting area, when the limb is extended horizontally, the bendable joints at the end of the limb are located within the protection range of the protective plate 123, so that the end of the limb cannot bend upward, ensuring that the limb will not contact the cutting area.

[0203] Furthermore, in order to fully cut the grass in the area to be cut, the grass in the area to be cut can enter between the cutting mechanism and the first protective side wall 12, the vertical distance between the cutting mechanism and the bottom end of the longitudinal part is M, 12mm≤M≤15mm, and the horizontal distance between the cutting mechanism and the bottom end of the longitudinal part is P, mm0≤P≤3mm, so that there is a gap between the connection between the guide part and the longitudinal part and the cutting mechanism 3, and the grass to be cut can enter between the guide parts of the cutting mechanism 3 from the gap and tilt toward the guide part. As the grass near the cutting mechanism 3 is gradually cut, the grass near the guide part will gradually return to the right position, and thus be cut by the cutting mechanism 3, reducing the amount of grass left and making the cutting coverage wider.

[0204] In order to ensure that the components of the intelligent lawn mower are fully utilized, the second protective cover 2 is the upper cover of the device body or the base of the device body.

[0205] On some intelligent mowers, the blade disc on the cutting mechanism 3 is movable and retractable. This retractable blade disc can cut grass to the desired length according to the user's needs. When the intelligent mower is not in operation, the blade disc can be raised to its highest position, ensuring both personnel safety and preventing damage from foreign objects. When the second protective cover 2 serves as the base of the device, the cutting mechanism 3 of this embodiment can also be retractable, and the first protective cover 1 and cutting mechanism 3 can be synchronously moved up and down relative to the base to ensure that the first protective cover 1 protects limbs extending into the target side bottom of the device from injury at any height of the cutting mechanism 3.

[0206] Next, the intelligent lawn mower is described in detail when the cutting mechanism is located at different height gears.

[0207] FIG25 is a schematic diagram of the cutting mechanism provided in an embodiment of the present application in the 80th gear state. Please refer to FIG25 .

[0208] When the cutting mechanism 3 is in gear 80, the distance between the blade disc of the cutting mechanism 3 and the ground is 80 mm. If the height of the rotating plate 2232 from the ground is 50 mm and the vertical distance between the blade disc and the rotating plate 2232 is 30 mm, when a limb is extended from the bottom end of the target side of the intelligent lawn mower, it will first touch the rotating plate 2232. As the limb continues to extend, the rotating plate 2232 rotates with the limb toward the first protective side wall 12 until it abuts against the second protective side wall 22. The limb then bends upward after passing the bottom end of the rotating plate 2232. It can be understood that due to the action of the second protective side wall 22 and the protective structure 223, the limb that passes the bottom end of the rotating plate 2232 is the end of the limb that can be bent, that is, the fingertip. Due to the action of the protective plate 123 and the vertical distance between the blade disc and the rotating plate 2232, the fingertip cannot contact the cutting area, thereby ensuring that the limb is not injured.

[0209] Figure 26 is a schematic diagram of the cutting mechanism provided in an embodiment of the present application in the 90th gear state, and Figure 27 is a schematic diagram of the cutting mechanism provided in an embodiment of the present application in the 100th gear state. Please refer to Figures 26 and 27.

[0210] It can be seen from the above-mentioned situation that when the cutting mechanism 3 is in gear 80, the limbs are extended to the bottom end of the target side of the intelligent lawn mower, and the fingertips cannot contact the cutting area. When the cutting mechanism 3 is in gear 90, the vertical distance between the blade disc and the rotating plate 2232 is 40 mm. When the cutting mechanism 3 is in gear 100, the vertical distance between the blade disc and the rotating plate 2232 is 50 mm, which is larger than the distance when the cutting mechanism 3 is in gear 80. Therefore, when the cutting mechanism 3 is in gears 90 and 100, it will not contact the cutting area.

[0211] FIG28 is a schematic diagram of the cutting mechanism provided in an embodiment of the present application in the 70th gear state. Please refer to FIG28 .

[0212] Since the height of the second protective cover 2 is constant, the process of the limb being shielded by the second protective cover 2 is the same as when the cutting mechanism 3 is at the 80th gear position, and will not be repeated again.

[0213] When the cutting mechanism 3 is in gear position 70, the height of the cutting mechanism 3 from the ground is 70 mm, and the vertical distance between the cutter disc and the rotating plate 2232 is 20 mm. After the end of the limb passes over the rotating plate 2232, it bends upward. At this time, the fingertips are also bent upward. Under the action of the protective plate 123 and the vertical distance between the cutter disc and the rotating plate 2232, the fingertips cannot contact the cutting area, thereby ensuring that the limbs will not be injured.

[0214] FIG29 is a schematic diagram of the cutting mechanism provided in an embodiment of the present application in the 60th gear state. Please refer to FIG29 .

[0215] When the cutting mechanism 3 is in the 60th gear, the height of the cutting mechanism 3 from the ground is 60 mm. At this time, the height of the bottom end of the first protective side wall 12 from the ground is less than the height of the lowest end of the flip plate 2232 from the ground. After the limb passes over the second protective side wall 22, it needs to pass over the first protective side wall 12 before it can bend upward. During the bending process, it will be abutted against the lowest end of the protective plate 123, so that the end of the limb can no longer continue to bend upward to avoid being cut.

[0216] FIG30 is a schematic diagram of the cutting mechanism provided in an embodiment of the present application in the 50th gear state. Please refer to FIG30 .

[0217] When the cutting mechanism 3 is in gear position 50, the height of the cutting mechanism 3 from the ground is 50 mm. At this time, the height of the bottom end of the first protective side wall 12 from the ground is approximately 13 mm less than the height of the lowest end of the flip plate 2232 from the ground. After the limb passes over the second protective side wall 22, the wrist needs to bend downward at a certain angle when passing over the first protective side wall 12. At this time, the upward bending angle of the limb end will become smaller after passing over the first protective side wall 12. When the end of the limb bends upward to the maximum angle, it will abut against the protective plate 123, thereby protecting the limb from the influence of the cutting area.

[0218] FIG31 is a schematic diagram of the cutting mechanism provided in an embodiment of the present application in the 40th gear state. Please refer to FIG31 .

[0219] When the cutting mechanism 3 is in gear position 40, the height of the cutting mechanism 3 from the ground is 40 mm. At this time, the height of the bottom end of the first protective side wall 12 from the ground is approximately 23 mm less than the height of the lowest end of the flip plate 2232 from the ground. After the limb passes over the second protective side wall 22, the joint at the end of the limb cannot pass over the first protective side wall, so that the end of the limb can no longer continue to bend upward, thereby protecting the limb from the influence of the cutting area.

[0220] Referring to Figures 32 to 35, another rotating plate 2232 is also provided in one embodiment of the present application. In combination with the above embodiments, the intelligent lawn mower includes at least one rotating plate 2232, and the corresponding target-side rotating plate 2232 is rotatably connected to the first protective side wall 12 and / or the second protective side wall 22. The rotating plate 2232 extends downward and rotates in a direction close to the cutting mechanism. The rotating plate 2232 can be provided on the first protective side wall 12, or on the second protective side wall 22, or on both the first protective side wall 12 and the second protective side wall 22. Typically, the rotating plate 2232 is provided at an end position on the first protective side wall 12, or the rotating plate 2232 is provided at an end position on the second protective side wall 22. The rotating plate 2232 extends downward, which can be understood as extending closer to the ground. This partially blocks the gap between the cutting mechanism 3 and the ground. When a user's hand or foot reaches the bottom of the device from the target side, the rotating plate 2232 provides effective protection, preventing the user's hand or foot from coming into contact with the cutting mechanism 3. In addition, because the rotating plate 2232 is freely rotatable, when the smart lawn mower encounters an obstacle, the rotating plate 2232 can rotate to avoid the obstacle, thereby not affecting the smart lawn mower's passing and cutting performance.

[0221] Referring to Figures 32 to 36 , an embodiment of the present application further provides an intelligent lawn mower, comprising a device body, a cutting mechanism 3, a first protective cover 1, a second protective cover 2, and a rotating plate 2232. Along the width of the device body, as indicated by arrow X in Figure 32 , the device body has a left side and a right side. The cutting mechanism 3 is disposed at the bottom of the device body and adjacent to a target side of the device, with the target side being the left and / or right side of the device body. The first protective cover 1 is disposed above the cutting mechanism 3 and has a downwardly extending first protective sidewall 12; the bottom of the first protective sidewall 12 is lower than the cutting tool on the cutting mechanism 3.

[0222] Furthermore, a second protective cover 2 is disposed outside the first protective cover 1. The portion of the second protective cover corresponding to the target side of the device body includes a downwardly extending second protective sidewall 22. The first and second protective sidewalls 12, 22 are spaced apart across the width of the intelligent mowing device. A rotating plate 2232 is rotatably connected to the first and / or second protective sidewalls 12, 22, corresponding to the target side. Vertically, the rotating plate 2232 extends downward. When an external force is applied to the rotating plate 2232, it rotates toward the cutting mechanism 3. When the external force is removed, the rotating plate 2232 returns to its original position.

[0223] To reduce walking resistance caused by friction between the grass and the machine body, the bottom of the intelligent lawn mower is positioned some distance from the ground. This distance allows a person's feet to reach under the machine body and approach the blades, which serve as cutting elements. For safety reasons, the cutting mechanism 3 of the intelligent lawn mower is positioned relatively far from the edge of the machine body, ensuring that even if the operator reaches under the machine body, the cutting element will not come into contact. However, when the cutting mechanism 3 is located far from the edge of the machine body, it can lead to problems such as missing edges. For example, when the cutting mechanism 3 encounters obstacles such as corners, fences, and steps, it can create wide areas that cannot be cut. These wide areas that cannot be cut by the intelligent lawn mower often require manual trimming, which is time-consuming and labor-intensive. To address this requirement of missing edges without compromising user safety, conventional technologies incorporate a protective mechanism at the bottom of the cutting system. However, these protective mechanisms can cause problems such as grass pressing, tangling, and mud entanglement, which can affect the machine's cutting performance and reduce its maneuverability.

[0224] In order to solve the above technical problems, in the technical solution of the present application, a rotatable rotating plate 2232 is arranged on the first protective side wall 12 and / or the second protective side wall 22, so as to meet the cutting safety protection while not affecting the cutting performance of the cutting mechanism and the passing performance of the intelligent lawn mower.

[0225] Furthermore, referring to Figures 32 to 37 , the rotating plate 2232 can be connected to the first protective sidewall 12 and / or the second protective sidewall 22 via a rotating shaft 19. When the first protective sidewall 12 is provided with the rotating plate 2232, the rotating plate 2232 is connected to the end of the first protective sidewall 12 via the rotating shaft 19 (as shown in Figure a of Figure 34 ), or the rotating plate 2232 is connected to the outer wall surface of the first protective sidewall 12 via the rotating shaft 19 (as shown in Figure c of Figure 34 ). Of course, the rotating plate 2232 can also be connected to the end of the protective structure 17 via the rotating shaft 19 (as shown in Figure b of Figure 34 ). The rotating plate 2232 and the first protective sidewall 12 form a structure similar to a hinge, and the rotating plate 2232 can rotate or swing a certain angle relative to the first protective sidewall 12. When the rotating plate 2232 rotates, the distance between the end of the rotating plate 2232 and the ground increases.

[0226] The rotating plate 2232 rotates only under the action of an external force. When the external force is removed, the rotating plate 2232 will reset itself under the action of gravity, that is, reset to a vertical state.

[0227] Similarly, when a rotating plate 2232 is provided on the second protective sidewall 22, the rotating plate 2232 is connected to the end of the second protective sidewall 22 (as shown in Figure e in Figure 34) or the inner wall surface of the second protective sidewall 22 (as shown in Figure d in Figure 34) via the rotating shaft 19. Of course, the rotating plate 2232 can also be provided on the outer wall surface of the second protective sidewall 22 (as shown in Figure f in Figure 34). As mentioned above, the second protective sidewall 22 is a double-layer sidewall, which includes an inner protective wall 221 located on the inner side and an outer protective wall 222 located on the outer side. Therefore, the rotating plate 2232 can be provided on the inner protective wall 221 or on the outer protective wall 222. Similarly, the rotating plate 2232 can be provided on the inner wall surface or the outer wall surface of the inner protective wall 221 and the outer protective wall 222. Alternatively, the rotating plate 2232 is provided between the first protective sidewall and the second protective sidewall via the rotating shaft. For example, at a position between the first protective side wall and the second protective side wall, which is not limited in this embodiment, the rotating plate is located at this position.

[0228] While providing a protective function, the rotating plate 2232 also needs to avoid contact with the cutting mechanism due to excessive rotation angles. In one embodiment, the rotating plate 2232 rotates about its axis so that the rotating plate can rotate by an angle α relative to the first protective sidewall 12 or the second protective sidewall 22 within a range of 40 to 70 degrees. In a preferred embodiment, the rotation angle α is 50 degrees. Alternatively, the rotating plate can tilt relative to the first protective sidewall or the second protective sidewall within a range of 40 to 70 degrees.

[0229] Furthermore, referring to Figure 35 , when the rotating plate 2232 is connected to the first protective sidewall 12, the distance M2 between the bottom of the rotating plate 2232 and the bottom of the first protective sidewall 12 is 5 mm to 15 mm. This means that the distance M2 that the rotating plate 2232 extends downward from the bottom of the first protective sidewall 12 is 5 mm to 15 mm. In this embodiment, the distance M2 is 10 mm. Referring to Figure 32 , when the rotating plate 2232 is connected to the second protective sidewall 22, the distance M1 between the bottom of the rotating plate 2232 and the bottom of the second protective sidewall 22 is 10 mm to 30 mm. In this embodiment, the distance M1 is 15 mm.

[0230] Although the rotating plate 2232 can bring better protection effect, since the rotating plate 2232 extends toward the ground, the distance between the rotating plate 2232 and the ground will inevitably become smaller, and the passability and obstacle-crossing ability of the smart lawn mower will be affected.

[0231] In order to prevent the rotating plate 2232 from seriously affecting the passability and obstacle-crossing performance of the intelligent lawn mower, in one embodiment provided in the present application, referring to Figures 37 and 38, a guide bevel 2233 is provided on the rotating plate 2232 along the length direction of the rotating plate 2232. The guide bevel 2233 can be at the front end of the rotating plate 2232, or at the rear end of the rotating plate 2232, or at both the front end and the rear end of the rotating plate 2232. Usually, the length direction of the rotating plate 2232 is in the same direction as the length direction of the intelligent lawn mower. The guide bevel 2233 on the rotating plate 2232 can drive the rotating plate 2232 to rotate automatically when encountering obstacles such as weeds and soil, thereby preventing the rotating plate 2232 from continuously colliding with obstacles and causing damage to the rotating plate 2232.

[0232] Specifically, in one embodiment, referring to Figures 37 and 38 , the front end of the rotating plate 2232 is provided with a guide bevel 2233, which faces the ground. As shown in Figure 38 , the angle β between the guide bevel 2233 and the vertical centerline of the device body is defined as β. The angle β ranges from 30 degrees to 70 degrees. In this embodiment, the angle β is 60 degrees. If the smart lawn mower encounters an obstacle such as weeds or dirt while moving forward, these obstacles will exert a force on the guide bevel 2233. This force will cause the rotating plate 2232 to rotate, effectively avoiding direct contact with the obstacle and preventing the smart lawn mower from getting stuck. Of course, the smart lawn mower may also move backwards. During this process, the rear end of the rotating plate 2232 may come into contact with an obstacle. Therefore, to prevent the smart lawn mower from getting stuck during backward movement, a similar guide bevel 2233 can be provided at the rear end of the rotating plate 2232.

[0233] In the above embodiment, the first protective cover 1 and the cutting mechanism 3 can move up and down synchronously relative to the base to adjust the distance between the cutting mechanism 3 and the ground. This allows the user to adjust the distance between the cutting mechanism 3 and the ground according to the desired mowing height. When the rotating plate 2232 is located on the first protective side wall 12, since the bottom of the rotating plate 2232 is lower than the bottom of the first protective side wall 12, as the first protective cover 1 is lowered, the distance between the rotating plate 2232 and the ground may be too small, seriously affecting the passing and cutting performance of the intelligent lawn mower.

[0234] Therefore, when the first protective cover 1 and the cutting mechanism 3 move downward to a certain limit relative to the base, the rotating plate 2232 must be restricted from continuing to move downward with the first protective cover 1, thereby preventing the distance between the rotating plate 2232 and the ground from being too small. Referring to FIG35 , in one embodiment provided in the present application, a sliding seat 23 is provided on the first protective side wall 12. When the rotating plate 2232 is connected to the first protective side wall 12, the rotating plate 2232 can be slidably arranged in the sliding seat 23. The rotating plate 2232 can slide up and down in the vertical direction relative to the first protective side wall 12. Specifically, the sliding seat 23 on the first protective side wall 12 is arranged in the vertical direction. The rotating plate 2232 can slide up and down in the sliding seat 23. When the rotating plate 2232 slides downward, the end of the rotating plate 2232 approaches the ground. When the rotating plate 2232 slides upward, the end of the rotating plate 2232 moves away from the ground.

[0235] Normally, due to gravity, the rotating plate 2232 is located at the bottom end of the sliding seat. When the first protective cover 1 is lowered too low, the rotating plate 2232 can slide upward relative to the first protective side wall 12, thereby maintaining the distance between the ends of the rotating plate 2232 within a safe range. For example, a drive device can be provided in the sliding seat 23 to drive the rotating plate 2232 to slide up and down. When it is detected that the end of the rotating plate 2232 is too close to the ground or encounters an obstacle, the drive device drives the rotating plate 2232 to slide upward to prevent the rotating plate 2232 from contacting the obstacle.

[0236] Furthermore, referring to FIG35 , the intelligent lawn mower further includes a stopper 16. When the rotating plate 2232 moves downward relative to the device body along with the first protective sidewall 12 to a limit position, the stopper 16 abuts against the rotating plate 2232, preventing the rotating plate 2232 from further downward movement and from approaching the ground. The limit position is a preset position based on usage and is not specifically defined.

[0237] The following describes the working process of the stopper 16 in detail. As mentioned above, the intelligent lawn mower has multiple gears, and the distance between the first protective sidewall 12 and the ground varies in different gears. Referring to Figures 7a-7d, in the first gear, the distance between the first protective sidewall 12 and the ground is closest. In the fourth gear, the distance between the first protective sidewall 12 and the ground is greatest. In the fourth gear, the rotating plate 2232 can slide downward along with the first protective sidewall 12, and the stopper 16 is not connected to or has no effect on the rotating plate 2232. As the intelligent lawn mower adjusts its gear, for example, in the second gear, the stopper 16 abuts the rotating plate 2232. As the intelligent lawn mower adjusts from the second gear to the first gear, the stopper 16 maintains the position of the rotating plate 2232, allowing it to slide upward relative to the first protective sidewall 12, while the first protective sidewall 12 continues to move downward until it reaches the first gear.

[0238] Since the height of the second protective cover 2 does not change when the smart lawn mower switches gears, in one embodiment of the present application, the limiting member 16 may be provided on the second protective cover 2, or the limiting member 16 may be connected to the bottom of the device body.

[0239] As mentioned above, the first protective side wall 12 has two structures, one is that the first protective side wall 12 has a folded edge or a protective plate, and the other is that the first protective side wall 12 has no folded edge or protective plate. In the technical solution of the present application, the rotating plate 2232 can be adapted to be connected to both types of first protective side walls 12. When the first protective side wall 12 has a folded edge or a protective plate, the folded edge or the protective plate and the rotating plate 2232 are respectively located on both sides of the first protective side wall 12. When the first protective side wall 12 does not have a folded edge or a protective plate, the rotating plate 2232 can be arranged on the inner side of the first protective side wall 12 or on the outer side of the first protective side wall 12.

[0240] 36, 38 and 39, the length of the rotating plate 2232 is Hr, the length of the rotating plate 2232 is greater than the diameter of the cutting disc 33, the middle point of the rotating plate 2232 is located near the dotted line S in the middle position of the equipment body, and the rear end of the rotating plate 2232 is close to the traveling wheel of the intelligent lawn mower.

[0241] Referring to Figures 36 and 37 , in one embodiment provided herein, the second protective cover 2 is integrally formed with the housing of the intelligent lawn mower. Along the length of the device (direction indicated by arrow Y in Figure 36 ), the second protective cover 2 is positioned in front of the travel wheels. The second protective cover 2 has second protective sidewalls 22 on all three sides, surrounding the front, left, and right sides of the device, providing effective protection for the intelligent lawn mower. The protective sidewalls located in different functional directions can be either integrated or segmented.

[0242] Furthermore, to improve the intelligence level of the smart lawn mower, when the smart lawn mower collides with an obstacle, the smart lawn mower can detect the collision in a timely manner. A collision sensing component can be provided on the second protective side wall 22. For example, a collision sensing component is provided on each of the second protective side walls 22 in three directions of the second protective cover 2. When one of the collision sensing components is triggered, the smart lawn mower can promptly detect the direction of the collision.

[0243] In addition, in another embodiment of the present application, the second protective side wall 22 can also be in a state of being movably connected to the second protective cover 2, and there is at least one collision sensing component on the equipment body on different sides. When the second protective side wall 22 is hit, the second protective side wall 22 can move relative to the second protective cover 2 (displacement within a small movement range), thereby triggering the touch sensing component set on the second protective side wall 22.

[0244] Referring to Figure 37, in a specific embodiment, the second protective side walls 22 in three directions of the second protective cover 2 are segmented (for example, the second protective side wall 22a, the second protective side wall 22b, and the second protective side wall 22c). When one of the protective side walls 22 is hit, it can undergo a small displacement relative to the second protective cover 2, thereby triggering the collision sensing component at the corresponding position.

[0245] Referring to Figures 36 and 39 , in one embodiment provided herein, the cutting mechanism 3 includes multiple cutting discs 33, which are staggered along the length of the device body at the bottom of the device body. Specifically, along the length of the device body (in the direction indicated by arrow Y in Figure 36 ), the rotation centers of different cutting discs 33 are at different distances from the front of the device body. Along the width of the device body (in the direction indicated by arrow X in Figure 36 ), the distance between the rotation centers of different cutting discs 33 is greater than the diameter of the cutting disc 33. As shown in Figure 36 , the cutting mechanism includes two cutting discs 33, each having the same diameter. Along the length of the device body, the rotation center of one cutting disc 33 is located near the center of the device body, which can be considered to be the position of the dashed line S in Figure 36 . The rotation center of the other cutting disc 33 is located below the center. At least one of the multiple cutting discs 33 is located near a target side of the device body. For example, in FIG36 , the left side of the device body is the target side, and the cutting disc 33 on the left side is close to the target side, thereby ensuring that the cutting disc 33 can effectively cut the edge.

[0246] In addition, the diameters of the multiple cutting discs 33 on the cutting mechanism may also be different, as shown in FIG. 23 .

[0247] Staggering multiple cutting discs 33 can also reduce the number of target side locations. As shown in FIG36 , since there are no travel wheels blocking the center of the device, it is easier for a user to reach the bottom of the device from the center. Staggering multiple cutting discs 33 allows one cutting disc 33 to be positioned as far away from the center as possible. This allows only one target side location, with the rotating plate 2232 positioned there, to effectively provide protection.

[0248] Furthermore, referring to FIG35 , a protective structure 17 is provided at the bottom of the first protective sidewall 12 on the target side, extending lower than the cutting mechanism 3 and toward the inside of the first protective cover 1. Protective structure 17 provides further protection and can be the hem 122 or protective plate 123 mentioned in the above embodiments. In addition to having the guide plate and longitudinal portion described above, protective plate 123 can also have a right-angled triangle or right-angled trapezoidal cross-section.

[0249] When the protective structure 17 is a folded edge, the upward side of the protective structure 17 is a plane; when the protective structure 17 is a protective plate 123, see Figures 33 and 35, the upward side of the protective structure 17 is an inclined surface, that is, the cross-section of the protective structure 17 is a right triangle.

[0250] In order to meet the requirements of lightweight design, referring to FIG36 , in one embodiment provided in the present application, a hollow structure 18 is provided on the protective structure 17. The hollow structure 18 can effectively reduce the weight of the protective structure 17 while ensuring that the protective structure 17 has sufficient strength.

[0251] The actual protective effect of the rotating plate 2232 is described in detail below. Referring to Figure 40, when the user's hand reaches into the bottom of the intelligent lawn mower, the user's fingers can be fully extended into the gap between the bottom of the device body and the ground, while the user's wrist will be blocked by the second protective side wall 22. At this time, under the action of the fingers, the rotating plate 2232 is forced to rotate to a certain angle and can effectively prevent the user's fingers from penetrating deeper into the direction of the cutting mechanism 3, thereby effectively protecting the user's fingers. In addition, when the user's soles extend into the bottom of the intelligent lawn mower, the same effect is achieved. The second protective side wall 22 can effectively prevent the user's soles from further extending, while the rotating plate 2232 can effectively prevent the user's toes from approaching the cutting mechanism 3.

[0252] As mentioned above, the intelligent lawn mower has multiple operating positions. In different operating positions, the height of the cutting mechanism 3 above the ground varies. When the operating position is switched, the height of the cutting mechanism 3 above the ground also changes. The following describes the intelligent lawn mower in detail, focusing on the cutting mechanism 3 at different height positions.

[0253] Referring to FIG. 41 , FIG. 41 a, FIG. 41 b, and FIG. 41 c respectively illustrate the cutting mechanism 3 of the intelligent lawn mower in positions 30, 40, and 50. When the cutting mechanism is in positions 30, 40, and 50, because the first protective sidewall 12 is lower than the second protective sidewall 22, when the carrying finger 100 extends under the intelligent lawn mower, the second protective sidewall 22 effectively blocks the wrist, while the first protective sidewall 12 effectively blocks the finger from reaching the cutting mechanism 3.

[0254] Referring to Figure 42 , Figures d and e in Figure 42 respectively illustrate the cutting mechanism 3 of the intelligent lawn mower in positions 60 and 70. When the cutting mechanism is in positions 60 and 70, because the first protective sidewall 12 is higher than the end of the rotating plate 2232 on the second protective sidewall 22, when the carrying finger 100 extends under the intelligent lawn mower, the second protective sidewall 22 effectively blocks the wrist, while the rotating plate 2232 on the second protective sidewall 22 effectively blocks the finger from reaching the cutting mechanism 3.

[0255] Referring to Figure 43 , Figures f and g in Figure 43 respectively illustrate the cutting mechanism 3 of the intelligent lawn mower in gear positions 80 and 90. When the cutting mechanism is in gear positions 80 and 90, because the first protective sidewall 12 is significantly higher than the end of the rotating plate 2232 on the second protective sidewall 22, when the carrying finger 100 extends under the intelligent lawn mower, the second protective sidewall 22 effectively blocks the wrist, while the rotating plate 2232 on the second protective sidewall 22 effectively blocks the finger from reaching the cutting mechanism 3. Furthermore, although the finger can be raised, the cutting mechanism 3 is extended sufficiently high that the end of the finger cannot reach the cutting mechanism. Therefore, the combined effects of the first and second protective sidewalls and the rotating plate 2232 effectively enhance the protective effect of the intelligent lawn mower.

[0256] In order to facilitate understanding of the technical solution of the present application, a specific application scenario is given below to describe in detail the self-cleaning method of the cleaning equipment provided by the present application.

[0257] Application Scenario 1

[0258] A lawn mower robot includes a first protective cover and a second protective cover that partially cover the cutting mechanism. The areas uncovered by the cutting mechanism are located at the front and rear sides of the robot, allowing the robot to mow the lawn when moving forward or backward. The first protective sidewall, corresponding to the left or right bottom of the robot body, has a folded edge extending inward from the first protective cover, below the cutting mechanism. Horizontally, a gap exists between the end of the folded edge of the first protective cover and the tip of the cutting mechanism. When the robot mows the edge of the lawn, grass at the edge can penetrate through the gap into the area where the cutting mechanism is located, achieving full cutting. After the robot mows one area of ​​lawn, it needs to be moved to another area to continue mowing. While the robot is being moved, even though the cutting mechanism has stopped, there is still a risk of accidentally touching the sharp blades. To prevent the user from accidentally touching the blades while finding a foothold before moving, the protective sidewall of the second protective cover effectively blocks the user's wrist, preventing it from further reaching the area where the cutting mechanism is located. In addition, when the cutting mechanism is relatively low to the ground, the folded edge on the protective side wall of the first protective cover can further prevent the user's fingers from reaching the cutting mechanism. By providing the first protective cover and the second protective cover, multiple protections can be provided to the user to prevent accidental injury.

[0259] In summary, in the technical solution of the embodiment of the present application, by providing a second protective shield outside the first protective shield, it is equivalent to providing multiple protective shields, and the thickness of the second protective sidewall is greater than that of the first protective sidewall, thereby effectively improving the protective effect of the protective shield assembly. In addition, in the horizontal direction, there is a gap between the end of the folded edge of the first protective shield and the tip of the cutting mechanism. When mowing the edge of the lawn, the grass at the edge can extend into the area where the cutting mechanism is located through the gap, thereby achieving cutting to the edge. In addition, due to the effect of the gap, objects cut by the cutting mechanism are less likely to accumulate in the protective shield and cause the blade to jam.

[0260] Finally, it should be noted that 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An intelligent lawn mower, characterized in that: include: An equipment body, wherein along a width direction of the equipment body, the equipment body has a left side and a right side; a cutting mechanism, eccentrically disposed at the bottom of the device body and close to a target side of the device body, the target side being the left side or the right side, the cutting mechanism having a cutting area relative to the device body; A first protective cover, comprising a first protective side wall extending downward, wherein a bottom of the first protective side wall corresponding to the target side is provided with a folded edge which is lower than the cutting mechanism and extends toward the inside of the first protective cover; There is a gap between the end of the folded edge and the cutting area of ​​the cutting mechanism in the horizontal direction.

2. The intelligent lawn mower according to claim 1, characterized in that: In the horizontal direction, the gap between the end of the folded edge and the tip of the knife on the cutting mechanism is 0.1 to 5 mm; and / or In the vertical direction, the distance between the folded edge and the cutter on the cutting mechanism is 4 to 10 mm.

3. The intelligent lawn mower according to claim 1, characterized in that: In the horizontal direction, The distance between the tip of the knife on the cutting mechanism and the first protective side wall is 6 to 27 mm; and / or The folded edge length is 5.9 to 22 mm.

4. The intelligent lawn mower according to claim 1, characterized in that: The first protective cover is provided with notches on the front and rear sides corresponding to the equipment body, and the central angles corresponding to the line connecting the two end points of the notch and the center of the cutting mechanism are 65 to 85 degrees.

5. The intelligent lawn mower according to any one of claims 1 to 4, characterized in that: Also included is a second protective shield; The second protective cover is arranged above the first protective cover, and a portion of the second protective cover corresponding to the target side has a second protective side wall extending downward; The second protective sidewall is located at the outer side of the first protective sidewall and has a gap with the first protective sidewall.

6. The intelligent lawn mower according to claim 5, characterized in that: The bottom of the second protective side wall is inclined, being higher on the outside and lower on the inside.

7. The intelligent lawn mower according to claim 5, characterized in that: The gap between the second protective side wall and the first protective side wall is 5 to 20 mm; and / or The thickness of the second protective side wall is 25-35 mm.

8. The intelligent lawn mower according to claim 5, characterized in that: The second protective side wall is a double-layer side wall; The double-layer side wall comprises an inner protective wall located on the inner side and an outer protective wall located on the outer side; The bottom of the outer protective wall is higher than the bottom of the inner protective wall.

9. The intelligent lawn mower according to claim 8, characterized in that: The height difference between the outer protective wall and the inner protective wall is 10 to 20 mm; and / or The height difference between the inner protective wall and the first protective side wall is 5 to 25 mm.

10. The intelligent lawn mower according to claim 8, characterized in that: The gap between the inner protective wall and the first protective side wall is 5 to 10 mm; and / or The distance between the inner protective wall and the outer protective wall is 15 to 30 mm.

11. The intelligent lawn mower according to claim 5, characterized in that: The second protective cover is an upper cover of the device body or a base of the device body.

12. The intelligent lawn mower according to claim 11, characterized in that: The second protective cover is the base of the device body; The first protective cover and the cutting mechanism are arranged on the base, and the first protective cover and the cutting mechanism can move up and down synchronously relative to the base.

13. An intelligent lawn mower, characterized in that: include: An equipment body, wherein along the width direction of the equipment body, the equipment body has a left side and a right side; A cutting mechanism, eccentrically disposed at the bottom of the device body and close to a target side of the device body, the target side being the left side or the right side; A first protective cover is arranged above the cutting mechanism, the first protective cover has a first protective side wall extending downward; the bottom of the first protective side wall is lower than the cutter on the cutting mechanism; A second protective cover is arranged above the first protective cover, and a portion of the second protective cover corresponding to the target side of the device body has a second protective side wall extending downward; Wherein, the second protective cover extends the distance between the target side of the equipment body and the tool in the horizontal direction.

14. The intelligent lawn mower according to claim 13, characterized in that: The second protective side wall is a double-layer side wall; The double-layer side wall comprises an inner protective wall located on the inner side and an outer protective wall located on the outer side; The bottom of the outer protective wall is higher than the bottom of the inner protective wall.

15. The intelligent lawn mower according to claim 14, characterized in that: The bottom of the inner protective wall is 24 to 26 mm above the ground; The bottom of the outer protective wall is 42 to 46 mm above the ground; In the horizontal direction, the distance between the outer side wall of the outer protective wall and the tip of the tool is 58-62 mm.

16. The intelligent lawn mower according to any one of claims 13 to 15, characterized in that: The height difference between the bottom of the first protective side wall and the cutter is 7-15 mm.

17. The intelligent lawn mower according to claim 14, characterized in that: The bottom of the second protective side wall is 43-46 mm above the ground; In the horizontal direction, the distance between the outer side wall of the outer protective wall and the tip of the tool is 88-92 mm.

18. An intelligent lawn mower, characterized in that: include: The equipment body has a running wheel set at the bottom, and the running wheel set includes a front wheel set and a rear wheel set; A cutting mechanism, located between the front wheel group and the rear wheel group, and biased toward the right side or the left side of the bottom of the device body; The second protective cover is located outside the cutting mechanism and has an inner protective wall and an outer protective wall. The height of the inner protective wall from the ground is lower than the height of the outer protective wall from the ground, and there is a gap between the inner protective wall and the outer protective wall.

19. The intelligent lawn mower according to claim 18, characterized in that: The width of the second protective cover is B, where B>20 mm.

20. The intelligent lawn mower according to claim 18, characterized in that: The distance between the outer protective wall and the cutting area is F, 25mm≤F≤55mm.

21. The intelligent lawn mower according to claim 18, characterized in that: A height difference between the bottom of the inner protective wall and the bottom of the outer protective wall is D4, 10mm≤D4≤25mm.

22. The intelligent lawn mower according to claim 18, characterized in that: The height of the bottom of the inner protective wall is D2, 30mm≤D2≤55mm.

23. The intelligent lawn mower according to any one of claims 18 to 22, characterized in that: The intelligent lawn mower further comprises: The first protective cover is located between the second protective cover and the cutting mechanism. The first protective cover and the cutting mechanism are arranged at the bottom of the equipment body, and the first protective cover and the cutting mechanism can move up and down synchronously relative to the equipment body.

24. The intelligent lawn mower according to any one of claims 18 to 22, characterized in that: The outer side of the second protective cover is flush with the outer side of the corresponding side of the equipment body and the outer side of the rear wheel set, and the diameter of the cutting mechanism is greater than half of the bottom width of the equipment body.

25. The intelligent lawn mower according to any one of claims 18 to 22, characterized in that: The front wheel group has a front wheel rotation area relative to the equipment body, the cutting mechanism has a first cutting area relative to the equipment body, part of the first cutting area is located outside the rear wheel group and the front wheel rotation area, and the outside of the second protective cover exceeds the outside of the rear wheel group.

26. The intelligent lawn mower according to claim 25, characterized in that: The intelligent lawn mower further comprises: The second cutting mechanism has a second cutting area relative to the equipment body, the second cutting area is located inside the walking wheel assembly, and the diameter of the second cutting mechanism is 1.5 times the diameter of the cutting mechanism.

27. The intelligent lawn mower according to claim 26, characterized in that: There is a distance L between the second cutting area and the first cutting area, and L is ≥ 10 mm.

28. An intelligent lawn mower, characterized in that: include: An equipment body, wherein along the width direction of the equipment body, the equipment body has a left side and a right side; A cutting mechanism, eccentrically disposed at the bottom of the device body and close to a target side of the device body, the target side being the left side or the right side; A first protective cover is arranged above the cutting mechanism, the first protective cover has a first protective side wall extending downward; the bottom of the first protective side wall is lower than the cutter on the cutting mechanism; A second protective cover is arranged above the first protective cover, and a portion of the second protective cover corresponding to the target side of the device body has a second protective side wall extending downward; The second protective side wall has a protective structure on the side facing the first protective side wall, and the protective structure extends the distance between the target side of the equipment body and the tool in the horizontal direction. The lower side of the protective structure can be rotated toward the first protective side wall, and the bottom end of the protective structure is lower than the bottom end of the second protective side wall.

29. The intelligent lawn mower according to claim 28, characterized in that: The protection structure comprises: A bracket, one end of which is horizontally extended and arranged on a side of the second protective side wall facing the first protective side wall, and the other end of which is vertically extended to be flush with the bottom end of the second protective side wall; The rotating plate can be rotatably arranged on the other end of the bracket facing the side of the second protective side wall, and the bottom end of the rotating plate is lower than the bottom end of the second protective side wall.

30. The intelligent lawn mower according to claim 28, characterized in that: A protective plate is provided on the side of the first protective side wall facing the cutting mechanism.

31. The intelligent lawn mower according to claim 28, characterized in that: The protective plate comprises: a guide portion, one end of which is connected to the first protective side wall, and an acute angle is formed between the guide portion and the first protective side wall; and One end of the longitudinal portion is connected to the other end of the guide portion, and the other end of the longitudinal portion extends in the vertical direction to be flush with the bottom end of the first protective side wall.

32. The intelligent lawn mower according to claim 31, characterized in that: The distance between the cutting mechanism and the bottom end of the longitudinal portion in the vertical direction is M, 12mm≤M≤15mm.

33. The intelligent lawn mower according to any one of claims 28 to 32, characterized in that: The height of the bottom of the second protective side wall from the ground is G, G=60mm.

34. The intelligent lawn mower according to any one of claims 28 to 32, characterized in that: The distance between the outer side of the second protective side wall and the outermost end of the cutting mechanism is F, 45mm≤F≤50mm.

35. The intelligent lawn mower according to any one of claims 28 to 32, characterized in that: The second protective cover is an upper cover of the device body or a base of the device body.

36. The intelligent lawn mower according to any one of claims 28 to 32, characterized in that: The second protective cover is the base of the device body; The first protective cover and the cutting mechanism are arranged on the base, and the first protective cover and the cutting mechanism can move up and down synchronously relative to the base.

37. An intelligent lawn mower, characterized in that: include: An equipment body, wherein along the width direction of the equipment body, the equipment body has a left side and a right side; A cutting mechanism, arranged at the bottom of the device body and close to a target side of the device body, the target side being the left side and / or the right side; A first protective cover is arranged above the cutting mechanism, the first protective cover has a first protective side wall extending downward; the bottom of the first protective side wall is lower than the cutter on the cutting mechanism; A second protective cover is arranged on the outside of the first protective cover, and a portion of the second protective cover corresponding to the target side of the device body has a second protective side wall extending downward; A rotating plate, corresponding to the target side, rotatably connected to the first protective side wall and / or the second protective side wall; Wherein, in the vertical direction, the rotating plate extends downward, and when the protective plate is acted upon by an external force, the rotating plate rotates toward a direction approaching the cutting mechanism.

38. The intelligent lawn mower according to claim 37, characterized in that: The rotating plate is connected to the end of the first protective side wall or the wall surface outside the first protective side wall through a rotating shaft; or The rotating plate is connected to the end of the second protective side wall, the inner wall surface of the second protective side wall, or the outer wall surface of the second protective side wall through a rotating shaft; or The rotating plate is arranged between the first protective side wall and the second protective side wall via a rotating shaft; Wherein, the rotating plate rotates around the rotating axis so that the angle at which the rotating plate is inclined relative to the first protective side wall or the second protective side wall is in the range of [40 degrees to 70 degrees].

39. The intelligent lawn mower according to claim 38, characterized in that: When the rotating plate is connected to the first protective side wall, a sliding seat is provided on the first protective side wall, and the rotating plate is slidably disposed in the sliding seat. The rotating plate slides up and down in a vertical direction relative to the first protective side wall.

40. The intelligent lawn mower according to claim 38, characterized in that: The intelligent lawn mower further includes a limiting member, which is arranged on the first protective cover or the device body; When the rotating plate moves downward to the limit position relative to the equipment body along with the first protective side wall, the limiting member and the rotating plate Butt.

41. The intelligent lawn mower according to claim 37, characterized in that: Along the length direction of the rotating plate, the front end and / or the rear end of the rotating plate are provided with a guiding inclined surface, and the guiding inclined surface faces the ground.

42. The intelligent lawn mower according to any one of claims 37 to 41, characterized in that: The cutting mechanism comprises a plurality of cutting blades, and along the length direction of the device body, the plurality of cutting blades are staggeredly arranged at the bottom of the device body; At least one of the cutting blades is located proximate a target side of the device body.

43. The intelligent lawn mower according to claim 42, characterized in that: A protective structure is provided at the bottom of the first protective side wall corresponding to the target side, the protective structure being lower than the cutting mechanism and extending toward the inside of the first protective cover.

44. The intelligent lawn mower according to claim 43, characterized in that: The upward side of the protective structure is a plane or an inclined surface; The protective structure is provided with a hollow structure.

45. The intelligent lawn mower according to claim 44, characterized in that: When the rotating plate is connected to the first protective side wall, the distance between the bottom of the rotating plate and the bottom of the first protective side wall is 5 mm to 15 mm; When the rotating plate is connected to the second protective side wall, the distance between the bottom of the rotating plate and the bottom of the second protective side wall is 10 mm to 30 mm.

46. ​​The intelligent lawn mower according to claim 37, characterized in that: The second protective side wall is movably connected to the second protective cover, and the second protective side wall is arranged around the front side, the left side and the right side of the equipment body; Collision sensing components are provided on the equipment body at different direction sides. When the second protective side wall is collided, the second protective side wall moves relative to the second protective cover to trigger the collision sensing components.

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