A robotic lawnmower with integrated components

Abstract

This disclosure discloses a lawnmower, comprising: a housing, a charging circuit disposed within the housing, and an assembly disposed on the housing, the assembly being electrically connected to the charging circuit, wherein the assembly includes: a wheel assembly and a charging interface portion electrically connected to the charging circuit, wherein the wheel assembly and the charging interface portion form an integral structure.

Description

[0001] Cross-references to related applications

[0002] This application relates to and claims priority to the following jointly owned, currently pending Chinese patent applications: 202020441934.X / .9, filed March 31, 2020; 202020701949.5, filed April 30, 2020; 202020731685.8, 202020731675.4, 202010384328.3, 202020731501.8, 202010376995.7, and 202020732348.0, filed May 7, 2020; 202020799218.9 and 202020800248.7, filed May 14, 2020; and 202... 020991642.3; Applications filed on December 21, 2020, including 202011533027.9, 202023096114.0, 202011519711.1, 202023096221.3, 202011519711.1, 202023096221.3, and 202011518. 432.3, 202023096201.6, 202011518419.8, 202023096313.1, 202011518322.7, 202023094544.9, 202011519837.9, 202023094522.2, 202023091979.8. For all purposes, the disclosure of the foregoing applications is incorporated herein by reference in its entirety, including any appendices or annexes. Technical Field

[0003] This invention relates to a lawnmower. Background Technology

[0004] A lawnmower is a mechanical tool used to trim lawns and vegetation. It utilizes an engine to drive blades at high speed, significantly increasing weeding speed and saving considerable time and manpower for lawnmower workers. A smart lawnmower is a robotic lawnmower with advantages such as intelligence, modernity, environmental friendliness, and hands-free operation, making it increasingly popular with the market and consumers. However, during use, smart lawnmowers may experience tire slippage, causing them to malfunction and stop operating normally. Summary of the Invention

[0005] To achieve the above and other objectives, this disclosure provides a lawnmower, comprising: a housing; a movable top cover located above the housing; and a cutting mechanism disposed on the housing.

[0006] In summary, this disclosure proposes a lawnmower that can be an intelligent lawnmower, which can automatically perform lawnmowing operations, thereby keeping the user away from the work site, thus reducing harm to the user and improving lawnmowing efficiency. Attached Figure Description

[0007] Figure 1 This is a top-view perspective view of the lawnmower of the present invention.

[0008] Figure 2 It is a 3D view of a lawnmower from an upward angle.

[0009] Figure 3 This is a side view of a lawnmower (without the main flap and movable top cover).

[0010] Figure 4 yes Figure 1 AA section view in the image.

[0011] Figure 5 This is an exploded view of the cutter head auxiliary height adjustment component.

[0012] Figure 6 This is a cross-sectional view of the cutter head auxiliary height adjustment component.

[0013] Figure 7 This is a top view of the cutter head auxiliary height adjustment component.

[0014] Figure 8 This is a 3D view of the cutter head auxiliary height adjustment component from an upward angle.

[0015] Figure 9a This is a schematic diagram of the cutter head auxiliary height adjustment component lowering the cutter head.

[0016] Figure 9b This is a schematic diagram of the cutter head auxiliary height adjustment component for adjusting the height of the cutter head.

[0017] Figure 10a This is a top-down 3D view of the first cutter head connector.

[0018] Figure 10b This is a three-dimensional view of the first cutter head connector from a bottom-view angle.

[0019] Figure 11a This is a top-down perspective view of the second cutter head connector.

[0020] Figure 11b This is a three-dimensional view of the second cutter head connector from a bottom-view angle.

[0021] Figure 12a This is a top-down 3D view of the third cutter head connector.

[0022] Figure 12bThis is a three-dimensional view of the third cutter head connector from a bottom-view angle.

[0023] Figure 13 It is a 3D diagram of the height adjustment lever viewed from below.

[0024] Figure 14 yes Figure 4 A magnified view of part D in the middle.

[0025] Figure 15a This is a diagram illustrating the adjustment of the blade height in a lawnmower.

[0026] Figure 15b This is a diagram illustrating the adjustment of the blade height in a lawnmower.

[0027] Figure 15c This is a diagram illustrating the adjustment of the blade height in a lawnmower.

[0028] Figure 16 This is a 3D view of the suspension lifting detection component.

[0029] Figure 17 This is a cross-sectional view of the suspension lifting detection component.

[0030] Figure 18 yes Figure 4 A magnified view of part B in the middle.

[0031] Figure 19 yes Figure 4 A magnified view of part C in the middle.

[0032] Figure 20 This is a 3D view of the air filter cover.

[0033] Figure 21 This is a top view of the air filter hood.

[0034] Figure 22 This is a bottom view of the air filter cover.

[0035] Figure 23 This is the front view of the air filter hood.

[0036] Figure 24 It is a 3D diagram of an airtight filling nozzle.

[0037] Figure 25 This is a top view of the airtight filling nozzle.

[0038] Figure 26 This is a bottom view of the airtight filling nozzle.

[0039] Figure 27 This is the front view of the airtight filling nozzle.

[0040] Figure 28 It is a 3D diagram of the disassembled wheels of a lawnmower.

[0041] Figure 29 This is an exploded cross-sectional view of the wheels.

[0042] Figure 30 This is a 3D view of the front of the wheel cover trim.

[0043] Figure 31 This is a front view of the back of the wheel cover trim.

[0044] Figure 32 yes Figure 31 HH section view in the image.

[0045] Figure 33 It is a 3D view of the inside of the wheel cover.

[0046] Figure 34 This is a front view of the outer side of the wheel cover.

[0047] Figure 35 It is a 3D view of the inside of the wheel hub.

[0048] Figure 36 It is a 3D view of the outside of the wheel hub.

[0049] Figure 37 This is a front view of the outer side of the wheel hub.

[0050] Figure 38 This is an assembly diagram of the fasteners.

[0051] Figure 39 This is an assembly diagram of the positioning components.

[0052] Figure 40 This is a perspective view of the lower housing and assembly of the lawnmower of the present invention.

[0053] Figure 41 for Figure 40 Exploded view of the lower and middle shell and its assemblies.

[0054] Figure 42 for Figure 41 A magnified view of the circled area.

[0055] Figure 43 for Figure 41 A three-dimensional view of the lower and middle shell.

[0056] Figure 44 for Figure 41 A three-dimensional view of the middle assembly components.

[0057] Figure 45 for Figure 44 The cross-sectional view of the support wheel is omitted from the middle assembly component.

[0058] Figure 46 for Figure 44 A bottom view of the charging interface and the support wheel mounting base.

[0059] Figure 47 for Figure 44 A perspective view of the charging interface and the support wheel mounting base.

[0060] Figure 48 This is a perspective view of the wheel assembly of the present invention, omitting the support wheel mounting base.

[0061] Figure 49 for Figure 48 The cross-sectional view of the support wheel mounting base is omitted from the middle wheel assembly.

[0062] Figure 50 for Figure 49 A three-dimensional diagram of the first half of the wheel.

[0063] Figure 51 for Figure 49 A three-dimensional image of the second half of the middle round.

[0064] Figure 52 This is a structural schematic diagram of an embodiment of the planetary gearbox of the present invention.

[0065] Figure 53 yes Figure 52 The diagram shows an exploded view of the planetary gearbox.

[0066] Figure 54 yes Figure 53 The diagram shows a partial structural schematic of the planetary gearbox.

[0067] Figure 55 This is a three-dimensional schematic diagram of the cutter head assembly of the present invention.

[0068] Figure 56 yes Figure 55 A three-dimensional schematic diagram of the cutter head assembly from another angle.

[0069] Figure 57 This is a 3D schematic diagram of the cutter head.

[0070] Figure 58 yes Figure 56 The cutter head assembly shown is a cross-sectional view.

[0071] Figure 59 yes Figure 58 The plan view of the cross-section of the cutter head assembly is shown.

[0072] Figure 60 This is a perspective view of the casing and height adjustment mechanism of the lawnmower of the present invention.

[0073] Figure 61 for Figure 60 Cross-sectional view of the height adjustment mechanism and the housing.

[0074] Figure 62 This is a top view of the casing of the lawnmower of the present invention.

[0075] Figure 63 This is a top view of the lawnmower of the present invention, omitting the upper housing and upper cover.

[0076] Figure 64 for Figure 63 A magnified view of the area circled in the middle.

[0077] Figure 65 This is a schematic diagram of the three-dimensional structure after the base and adjustment mechanism are combined.

[0078] Figure 66 This is a schematic diagram of the three-dimensional structure after the lower base and adjustment mechanism are combined.

[0079] Figure 67 It is a three-dimensional schematic diagram of the adjustment mechanism and the cutting mechanism working together.

[0080] Figure 68 This is a three-dimensional structural diagram of an elastic guide.

[0081] Figure 69 yes Figure 68 A three-dimensional structural diagram of the elastic guide shown from another angle.

[0082] Figure 70 yes Figure 68 The cross-sectional view of the elastic guide shown.

[0083] Figure 71 This is a three-dimensional structural schematic diagram of the second embodiment of the elastic guide.

[0084] Figure 72 It is an application Figure 71 A cross-sectional view of a lawnmower with a flexible guide shown.

[0085] Figure 73 This is a cross-sectional structural diagram of the first charging component of the present invention;

[0086] Figure 74 This is a schematic diagram of the structure of the first elastic terminal of the present invention;

[0087] Figure 75 This is a schematic diagram of the structure of the second charging component of the present invention;

[0088] Figure 76 This is a schematic diagram of the structure of the third elastic terminal of the present invention;

[0089] Figure 77 This is a cross-sectional view of the second charging component of the present invention;

[0090] Figure 78 This is a schematic diagram of the structure of the first fixing buckle of the present invention;

[0091] Figure 79 A schematic diagram of the first process used by the first charging component and the second charging component of the present invention;

[0092] Figure 80 This is a schematic diagram of the second process used by the first charging component and the second charging component of the present invention.

[0093] Figure 81 It is a 3D exploded view of a lawnmower.

[0094] Figure 82 This is a cross-sectional view of a lawnmower.

[0095] Figure 83 This is a cross-sectional view of the lawnmower from another angle.

[0096] Figure 84 This is a schematic diagram of the three-dimensional structure of the supporting column.

[0097] Figure 85 yes Figure 84 An exploded 3D view of the supporting column shown.

[0098] Figure 86 This is a structural diagram of a lawnmower.

[0099] Figure 87 This is a front view of the first shell.

[0100] Figure 88a This is a three-dimensional structural diagram of the first shell.

[0101] Figure 88b This is a three-dimensional structural diagram of the first shell from another angle.

[0102] Figure 89 yes Figure 88b The first housing shown is a cross-sectional view along the AA direction.

[0103] Figure 90 This is a schematic diagram of the second shell structure.

[0104] Figure 91 yes Figure 90 The second housing shown is a cross-sectional view along the BB direction.

[0105] Figure 92 This is a partial perspective view of the housing of the present invention.

[0106] Figure 93 for Figure 92 Enlarged view of part A in the middle.

[0107] Figure 94 This is a partial enlarged view of the main body of the present invention.

[0108] Figure 95 This is a partially enlarged view of the back cover of the present invention.

[0109] Figure 96 This is a perspective view of the pin of the present invention.

[0110] Figure 97 This is a schematic diagram of the lifting detection device of the lawnmower of the present invention, which is located between the main body and the chassis.

[0111] Figure 98 This is an exploded perspective view of the lifting detection device for the lawnmower of the present invention.

[0112] Figure 99 This is an exploded perspective view of the lifting detection device of the lawnmower of the present invention from another angle.

[0113] Figure 100 This is a cross-sectional structural diagram of the lifting detection device of the lawnmower of the present invention under normal working conditions.

[0114] Figure 101 This is a cross-sectional structural diagram of the lifting detection device of the lawnmower of the present invention in the lifting state.

[0115] Figure 102 This is a partial structural cross-sectional view of the lawnmower of the present invention.

[0116] Figure 103 yes Figure 102 A three-dimensional view of the central suspension system.

[0117] Figure 104 yes Figure 103 The diagram shows a cross-sectional view of the suspension system in the AA direction.

[0118] Figure 105 yes Figure 103 A partial three-dimensional view of the suspension device shown.

[0119] Figure 106 yes Figure 105 The exploded diagram.

[0120] Figure 107 yes Figure 106 A three-dimensional view of the first supporting column.

[0121] Figure 108 yes Figure 103 A perspective view of the fixed frame in the suspension device shown.

[0122] Figure 109 yes Figure 108 Another perspective view of the mounting bracket shown.

[0123] Figure 110 yes Figure 108 The cross-sectional view of the fixing frame is shown.

[0124] Figure 111This is a schematic diagram of a lawnmower from another angle.

[0125] Figure 112 This is an exploded view of the magnet fixing structure of the present invention.

[0126] Figure 113 This is a cross-sectional structural diagram of the lawnmower's casing.

[0127] Figure 114 yes Figure 113 A magnified view of a portion of point A in the middle.

[0128] Figure 115 This is a schematic diagram of the collision sensor of the present invention.

[0129] Figure 116 This is a perspective view of an intelligent lawnmower according to an embodiment of the present invention.

[0130] Figure 117 This is a perspective view of the connection device of an intelligent lawnmower according to an embodiment of the present invention.

[0131] Figure 118 for Figure 117 A cross-sectional view of the connecting device, wherein the locking element of the connecting device is in a released position.

[0132] Figure 119 and Figure 118 Similar, but the locking element is in a locked position.

[0133] Figure 120 This is a perspective view of the mounting base for the connecting device.

[0134] Figure 121 This is another perspective view of the mounting base, showing its bottom structure.

[0135] Figure 122 A perspective view of the locking element of the connecting device.

[0136] Figure 123 This is another perspective view of the locking component, showing its bottom structure.

[0137] Figure 124 This is a perspective view of the base plate of the connecting device.

[0138] Figure 125 This is a cross-sectional view of the base plate.

[0139] Figure 126 This is a schematic diagram of the switch of the present invention in the closed state.

[0140] Figure 127 The switching edge of the present invention Figure 126 A schematic diagram of the cross-sectional structure cut along line AA.

[0141] Figure 128 This is a schematic diagram of the switch of the present invention in the open state.

[0142] Figure 129 The switching edge of the present invention Figure 128 A schematic diagram of the cross-sectional structure cut along line AA.

[0143] Figure 130 This is a three-dimensional assembly diagram of a charging station system according to an embodiment of the present invention.

[0144] Figure 131 for Figure 130 Another perspective view of the charging station system shown, wherein the charging station is separated from the roof.

[0145] Figure 132 for Figure 131 The diagram shows an exploded 3D view of the ceiling of the charging station system.

[0146] Figure 133 The charging station system of the present invention is along Figure 130 A cross-sectional view along the AA direction.

[0147] Figure 134 for Figure 130 Another perspective view of the charging station system shown, in which the canopy is in the open position.

[0148] Figure 135 This is an exploded view of the safety switch of this disclosure in the first position.

[0149] Figure 136 This is a top view of the safety switch disclosed herein.

[0150] Figure 137 for Figure 136 A schematic diagram of the cross-section along the AA direction.

[0151] Figure 138 This is a top view of the safety switch of this disclosure in the second position.

[0152] Figure 139 for Figure 138 A schematic diagram of the cross-section along the BB direction.

[0153] Figure 140 This is a three-dimensional structural diagram of the light guide component of the present invention.

[0154] Figure 141 yes Figure 140 A three-dimensional structural diagram of the light guide component from another angle.

[0155] Figure 142 yes Figure 140 The diagram shows the disassembled structure of the light guide component.

[0156] Figure 143 This is a schematic diagram showing the disassembled structure of the garden tool.

[0157] Figure 144 This is a partial cross-sectional view of the light guide post after it has been installed on the base.

[0158] Figure 145 yes Figure 144 A schematic diagram of the upper and middle shell structure.

[0159] Figure 146 yes Figure 144 A magnified view of the upper and middle shell from another angle.

[0160] Figure 147 This is a three-dimensional structural diagram of the light guide component of the present invention.

[0161] Figure 148 yes Figure 147 A three-dimensional structural diagram of the light guide component from another angle.

[0162] Figure 149 This is a three-dimensional structural diagram of the charging device of the present invention.

[0163] Figure 150 This is an exploded view of the light guide component and the charging unit.

[0164] Figure 151 This is a three-dimensional structural diagram of the charging section.

[0165] Figure 152 This is a partial cross-sectional view of the light guide component after it has been installed on the charging unit. Detailed Implementation

[0166] The following description illustrates specific achievable embodiments of the present invention with reference to the accompanying drawings. Furthermore, the directional terms such as up, down, front, back, left, right, inside, outside, and side described in this invention are merely directional references to the drawings; therefore, the directional terms used are for describing and understanding the present invention, but the present invention is not limited thereto.

[0167] The accompanying drawings and descriptions should be considered illustrative in nature and not restrictive. Throughout the specification, the same reference numerals denote the same elements. Furthermore, the dimensions and thicknesses of each component shown in the drawings are for ease of understanding and description, but the invention is not limited thereto.

[0168] Please see Figures 1-4As shown, this invention discloses an intelligent lawnmower, comprising: a housing 1; a movable top cover 2 located above the housing 1; and a control assembly located inside the housing 1. The movable top cover 2 also has a main body flip cover 4. The control assembly can be configured (i.e., constructed and arranged) to control the lawnmower's operation. The control assembly, for example, but not limited to, a microcontroller or processor module, can control the operation of various mechanisms through corresponding drive circuits.

[0169] See Figure 4 , Figures 5-15c As an optional implementation of the cutting mechanism, the lawnmower includes a cutting mechanism 3 for mowing grass. The cutting mechanism 3 includes: a prime mover 36, located inside the housing 1, for driving the blade disc 5 to rotate; the blade disc 5, located at the bottom of the blade disc auxiliary height adjustment component 37, for mounting the blades 6 (or blade mounting positions); and the blade disc auxiliary height adjustment component 37 adapted to adjust the height of the blade disc 5.

[0170] See Figure 4 , Figure 6 and Figure 14 The cutter head auxiliary height adjustment assembly 37 is mounted on the output shaft of the prime mover 36, for example, but not limited to, in a tight-fitting manner, and at least one grass-cutting blade 6 can be mounted on the bottom surface of the cutter head 5. In this embodiment, there are three blades 6, evenly distributed on the circumference of the cutter head 5. However, in other embodiments, the number of blades 6 can be adjusted as needed. A protective cover 58 is also provided below the cutter head 5 to prevent accidental contact with the blades 6.

[0171] See Figures 5-15c The cutter head auxiliary height adjustment assembly 37 includes: at least two cutter head connectors that are movably sleeved from the inside to the outside; wherein the first cutter head connector 47 is located on the innermost side and is fixedly installed on the output shaft of the prime mover 36; the second cutter head connector 57 is located on the outermost side and is used to connect the cutter head 5; and an adjustment member 50 is used to drive the second cutter head connector 57 to move along the surface of the first cutter head connector 47 to adjust the height of the cutter head 5.

[0172] See Figures 5-15c The number of tool turret connectors is at least two. When there are two tool turret connectors, the second tool turret connector 57 moves directly along the sleeve (or outer surface) of the first tool turret connector 47. When there are more than two tool turret connectors, the remaining tool turret connectors are all third tool turret connectors, and all third tool turret connectors are located between the first and second tool turret connectors and can move along the sleeves (inner or outer surfaces) of the two tool turret connectors. As per the appendix of this document... Figure 7 One embodiment illustrates a case where the number of cutter head connectors is three, but it should not be narrowly assumed that the number of cutter head connectors is three.

[0173] See Figures 10a-10b The first cutter head connector 47 includes: a hollow first body 61; and at least one first guide groove 62, which is disposed on the outside of the first body 61. The first body 61 is tightly fitted on the outside of the output shaft of the prime mover 36 to transmit power from the prime mover 36 to other cutter head connectors adjacent to the first cutter head connector 47 through the at least one first guide groove 62.

[0174] See Figures 10a-10b The first body 61 is a hollow cylinder with openings at both ends to facilitate the mounting of the output shaft of the prime mover 36 and the installation of the auxiliary height adjustment rod. Each first guide groove 62 is evenly distributed on the outer surface of the first body 61, and each first guide groove 62 is at the same height as the first body 61, meaning the first guide groove 62 is a through groove.

[0175] See Figures 10a-10b The lower end of the first body 61 is further provided with at least one first mounting hole 63 for mounting a first limiting member 55. The first limiting member 55 is, for example, but not limited to, a screw or bolt, and is threaded into the first mounting hole 63. One end (wide head) of the first limiting member 55 may be wider than the other end, and the wide head of the first limiting member 55 protrudes from the end of the first guide groove to restrict the sliding out of another cutter head connector, that is, to restrict the cutter head connector adjacent to the outside of the first cutter head connector from disengaging from the surface of the first cutter head connector. In this case, when there are two cutter head connectors, the wide head of the first limiting member 55 is used to restrict / align the two end faces of the second cutter head connector and the first cutter head connector; when there are at least three cutter head connectors, the wide head of the first limiting member 55 is used to restrict / align the end faces of the third cutter head connector and the first cutter head connector 47.

[0176] See Figures 11a-11b The second cutter head connector 57 includes: a hollow second body 64; at least one protruding second guide portion 65 disposed inside the second body 64; an open end 68 located at one end of the second body 64 for fitting the inner cutter head connector; a closed end 69 located at the other end of the second body 64 for mounting an adjustment member 50; and the second guide portion 65 is adapted to a guide groove of the inner cutter head connector to guide the second cutter head connector 57 to move along the inner cutter head connector.

[0177] See Figures 11a-11b The second body 64 is a hollow cylinder with one end open (i.e., open end 68) to serve as a sleeve allowing the insertion of another cutter head connector (such as the first cutter head connector or the third cutter head connector); the other end of the second body 64 is partially closed (i.e., closed end 69) for mounting the cutter head and the adjustment end of the auxiliary height adjustment lever. Second guide portions 65 are evenly distributed on the inner surface of the second body 64.

[0178] The second guide portion 65 includes at least one second long protrusion 66 and at least one second short protrusion 67 arranged in an alternating pattern; wherein the height of the second long protrusion 66 is approximately equal to the height of the second body 64; the height of the second short protrusion 67 is less than the height of the second body 64 and is disposed near the opening end 68 of the second body 64 to cooperate with a corresponding limiting member to restrict the second cutter head connector from detaching from the surface of the third cutter head connector or the first cutter head connector.

[0179] See Figure 11b The closed end of the second body 64 is also provided with at least one cutter head mounting hole 60 for fastening to the cutter head 5 with fasteners. The cutter head mounting hole 60 is located at or near the bottom of the second elongated protrusion 66.

[0180] See Figure 5 At least one third cutter head connector 48 is provided between the first cutter head connector 47 and the second cutter head connector 57. When there is one third cutter head connector 48, the number of cutter head connectors in the cutter head auxiliary height adjustment assembly is three; when there are two third cutter head connectors 48, the number of cutter head connectors in the cutter head auxiliary height adjustment assembly is four. The structure of each third cutter head connector 48 can be the same, but the size is different, so as to facilitate sequentially moving and fitting from the inside to the outside.

[0181] See Figures 12a-12b The third cutter head connector 48 includes: a hollow third body 72a; at least one protruding third guide portion 74 located inside the third body 72a and adapted to the guide groove of the cutter head connector adjacent to its inner side; and at least one third guide groove 72 located outside the third body 72a and adapted to the guide portion of the cutter head connector adjacent to its outer side.

[0182] See Figures 12a-12b The third body 72a is a hollow cylinder with openings at both ends to facilitate the fitting of the inner blade connector. Third guide grooves 72 are evenly distributed on the surface of the third body 72a, and each third guide groove 72 is at the same height as the third body 72a (i.e., the third guide groove 72 is a through groove). Third guide portions 74 are evenly distributed on the inner surface of the third body 72a.

[0183] The third guide portion 74 includes at least one third long protrusion 76 and at least one third short protrusion 75 arranged in an alternating pattern; wherein the height of each third long protrusion 76 is approximately equal to the height of the third body 72a; the height of each third short protrusion 75 is less than the height of the third body 72a, and is disposed near the lower end of the third body 72a to cooperate with corresponding limiting members to prevent the second cutter head connector or other third cutter head connectors from disengaging from the surface of the third cutter head connector. In this embodiment, the third guide portion and the third guide groove can correspond one-to-one and be disposed opposite to each other on the inner and outer sides of the third body. Of course, the third guide portion and the third guide groove can also be arranged in an alternating pattern, as long as the assembly requirements are met.

[0184] See Figure 5 , Figure 8 and Figure 12b The lower end of the third body 72a is also provided with at least one third mounting hole 73 for mounting a third limiting member 58; the third mounting hole 73 is located at the bottom of the third elongated protrusion 75. The third limiting member 58, for example but not limited to screws or bolts, may have the same or different structure as the first limiting member and is threaded into the third mounting hole 73; wherein the wide head 59 of the third limiting member 58 protrudes from the end of the third guide groove 72 to restrict the guide portion of the adjacent cutter head connector from sliding out, that is, to restrict the cutter head connector adjacent to the outside of the third cutter head connector from disengaging from the surface of the third cutter head connector.

[0185] In this case, if Figure 5 As shown, the wide head 56 of the first limiting member 55 is used to restrict the first tool turret connector 47 from disengaging from the surface of the third tool turret connector 48; when there are three tool turret connectors, the wide head 59 of the third limiting member 58 is used to restrict the second tool turret connector 57 from disengaging from the bottom of the surface of the third tool turret connector 48; when there are four tool turret connectors, the wide head 59 of the third limiting member 58 is used to restrict the tool turret connectors outside the third tool turret connector from disengaging from the surface of the third tool turret connector.

[0186] See Figure 5 and Figure 13 The adjusting component 50 includes an auxiliary height adjustment rod 51; the mounting end of the auxiliary height adjustment rod 51 abuts against the output shaft end of the prime mover 36, and its adjusting end 53 passes through each cutter head connector and is threadedly connected to the cutter head 5; rotating the auxiliary height adjustment rod 51 causes the cutter head 5 to move, driving the second cutter head connector 57. A cutter head connector through hole 70 is provided on the closed end 69 of the second body to allow the cutter head connector adapted to the auxiliary height adjustment rod 51 to extend through. Of course, other structural holes 71 can also be provided on the closed end 69 of the second body for purposes such as assembly, observation, or weight reduction.

[0187] See Figure 5 and Figure 13The mounting end 52 of the auxiliary height adjustment rod 51 is engaged in the first body 61 by the first limiting member 55; the adjusting end 53 of the auxiliary height adjustment rod 51 is provided with an adjusting groove 54; and the cutter head 5 is provided with a threaded through hole 58 suitable for the movement of the adjusting end 53.

[0188] See Figure 6 A spring washer 49 is also provided between the auxiliary height adjustment rod 51 and the output shaft end of the prime mover 36.

[0189] See Figures 6 to 15c The process of adjusting the height of the cutter head through the cutter head auxiliary height adjustment component is as follows, which can be summarized into the following two situations. However, other possible implementations of adjusting the height of the cutter head through the cutter head auxiliary height adjustment component should also be within the protection scope of this application.

[0190] Step 1, the process of adjusting the cutter head height via the two cutter head connectors, is as follows: It can be done manually or by other means, such as using a screwdriver or similar tool to insert into the adjustment slot 54, and rotating the auxiliary height adjustment rod 51. As the auxiliary height adjustment rod 51 rotates, it causes the cutter head to rise or fall. At this time, the cutter head drives the second cutter head connector to move along the first cutter head connector, completing the cutter head height adjustment action. Since the cutter head adjustment process and the movement process of the cutter head connectors are relatively simple, they are not illustrated here.

[0191] Step 2: Since the process of adjusting the cutter head height is similar for three or more cutter head connectors, we will only take a case with three cutter head connectors as an example to explain the cutter head height adjustment action. The specific adjustment process is as follows: Figures 10a-10b ,or Figures 15a-15c As shown, the first cutter head connector 47, the third cutter head connector 48, and the second cutter head connector 57 are sequentially and movably fitted from the inside out. To facilitate the explanation of the cutter head adjustment process, (1) it is first assumed that the cutter head 5 is initially at its lowest height (e.g., Figure 15a As shown, the first limiting member 55 is installed on the first mounting hole 63, and the wide head 56 of the first limiting member 55 protrudes from the first guide groove 62 and abuts against the bottom of the third short protrusion 75 to restrict the third cutter head connector from disengaging from the first cutter head connector 47; the wide head 56 of the first limiting member 55 also protrudes from the hollow part of the first body 61 and abuts against the bottom of the mounting end 52 of the auxiliary height adjustment rod 51 to restrict the auxiliary height adjustment rod 51 from disengaging from the first cutter head connector 47. The third limiting member 58 is installed on the third mounting hole 73, and the wide head 59 of the third limiting member 58 protrudes from the third guide groove 72 and abuts against the bottom of the second short protrusion 67 to restrict the second cutter head connector 57 from disengaging from the third cutter head connector 48.

[0192] (2) Rotate the auxiliary height adjustment rod 51 as described above, so that the auxiliary height adjustment rod 51 drives the cutter head 5 to rise when it rotates. At this time, the cutter head 5 first drives the second cutter head connector 57 to move along the surface of the third cutter head connector 48, thereby increasing the height of the cutter head above the ground.

[0193] (3) When the closed end 69 (bottom end) of the second cutter head connector 57 abuts against the bottom of the third limiting member 58 or the third body 72a, the second cutter head connector 57 is completely fitted on the outside of the third disc connector 48.

[0194] (4) The second cutter head connector 57 continues to move upward, driving the third cutter head connector 48 to move along the surface of the first cutter head connector 47 (e.g., ...). Figure 15b As shown), continue to increase the height of the cutter head off the ground until the third cutter head connector 48 is basically completely fitted outside the first cutter head connector 47. At this time, the first cutter head connector 47, the third cutter head connector 48, and the second cutter head connector 57 are completely fitted from the inside to the outside. The closed end of the second cutter head connector 57 abuts against the bottom of the first cutter head connector 47, so that the cutter head 5 is adjusted to a higher position.

[0195] like Figure 3 , Figure 4 , Figures 16-19 As shown, the lawnmower also includes a detection mechanism located between the housing 1 and the movable top cover 2 to detect the relative displacement between the movable top cover 2 and the housing 1; and the control component is adapted to adjust the operating state of the lawnmower based on the detection results. The detection mechanism includes: at least one suspension lifting detection component 20, located on the housing 1, to detect the relative displacement between the movable top cover 2 and the housing 1 in the vertical direction; and at least one collision detection component 93, located on the housing 1, to detect the relative displacement between the movable top cover 2 and the housing 1 in the horizontal direction. The control component is adapted to adjust the operating state of the lawnmower based on the detection signals from the at least one suspension lifting detection component 20 and the at least one collision detection component 93. The control component may include a processor, various control circuits, sensing units, and corresponding drive circuits, and can detect changes in current signals to control the lawnmower to stop or start.

[0196] See Figure 3 and Figure 4 The suspension lift detection components 20 are divided into two, positioned diagonally opposite each other on the housing 1 via the first mounting position 16 on the movable cover 2; alternatively, four suspension lift detection components 20 are positioned at the corners of the housing 1 via the first mounting position 16 on the movable cover 2. The collision detection components 93 are divided into two, positioned at both ends of the housing 1 via the second mounting position 17 on the movable cover 2. Of course, the number of suspension lift detection components and collision detection components, as well as their distribution on the housing, can be adjusted according to vehicle model and structural requirements.

[0197] See Figure 4 , Figure 16 , Figure 17 The suspension lifting detection assembly 20 includes: a suspension ball head 80, fixed to the movable top cover of the lawnmower; a lifting limit member 86, separately disposed below the suspension ball head 80; a suspension spring 87, with its two ends respectively fixedly connected to the suspension ball head 80 and the lifting limit member 86; and a signal trigger module 88 located at the bottom of the lifting limit member 86. When the suspension ball head 80 moves upward, the suspension spring 87 pulls the lifting limit member 86 upward, inducing the signal trigger module 88 to send a detection signal.

[0198] See Figure 18 The suspension ball head 80 has a ball joint 89 on its side to fix it to the movable top cover 2 of the lawnmower via a snap-fit ​​mechanism. The two ends of the suspension spring 87 are respectively threadedly connected to the suspension ball head 80 and the lifting limit member 86. When the movable top cover of the lawnmower moves upward, it will cause the suspension ball head 80 to move upward as well. At this time, the suspension spring 87 will pull the lifting limit member 86 upward, thereby triggering the signal trigger module 88 to send a detection signal. Furthermore, the top of the suspension ball head 80 is also provided with a limiting groove 90, which works in conjunction with the limiting post on the movable top cover to prevent horizontal swaying between the suspension ball head and the movable top cover.

[0199] See Figure 18 The suspension spring is a high-stiffness spring, which is not prone to large deformation in the vertical direction. This satisfies the requirement of the suspension spring 87 pulling the lifting limit member 86 upward, while also providing horizontal damping. It also allows for a certain relative displacement between the suspension ball and the lifting limit member in the horizontal direction, preventing damage to the suspension lifting detection component or false alarms when the lawnmower collides with it. Of course, in other embodiments, the suspension spring can also be fixed to the suspension using snap-fit ​​or pin-locking methods.

[0200] See Figure 18 The signal triggering module 88 includes: a first magnetic block 88a fixed to the lower end of the lifting limit member 86, a first lifting detection plate 88b located below the lifting limit member 86, and a first reed switch 91 located on the first lifting detection plate 88b. When the lifting limit member 86 moves upward, the first magnetic block 88a moves away from the first reed switch 91, and the first reed switch 91 opens or closes, causing a change in the current signal on the first lifting detection plate 88b. That is, the change in the current signal can trigger the module to emit a detection signal. The first lifting detection plate and the second lifting detection plate, such as but not limited to Hall plates, are electrically connected to the control component. In this embodiment, the first reed switch 91 is located directly below the first magnetic block 88a.

[0201] See Figure 16 The suspension lifting detection assembly also includes a suspension fixing corrugated sleeve 81 sleeved on the outside of the suspension spring 87; one end of the suspension fixing corrugated sleeve 81 is snapped onto the suspension ball head 80, and the other end is fixedly installed on the housing 1 of the lawnmower through the suspension fixing bracket 82; when the lifting limit member moves upward, the suspension fixing corrugated sleeve 81 is stretched, which can generate a reset force and also play a role in sealing protection.

[0202] Of course, in order to increase the reset force of the suspension lifting detection component, the lawnmower suspension lifting detection component 20 also includes a suspension reset spring 84 sleeved on the outside of the lifting limit member 86; the two ends of the suspension reset spring 84 abut against the bottom of the suspension fixing frame 82 and the lifting limit member 86 respectively; when the lifting limit member moves upward, the suspension fixing frame 82 remains stationary, causing the gap between the bottom of the suspension fixing frame 82 and the lifting limit member to become smaller, the suspension reset spring 84 is compressed, generating a reset elastic force, which resets the suspension lifting detection component after the lawnmower stops working, preventing it from jamming.

[0203] See Figure 17 The lifting limit member 86 can be a hollow rod shape, with a lifting limit member slot 83 on its side. The signal triggering module 88 also includes: a magnet bracket 92 located inside the hollow lifting limit member 86; the magnet bracket 92 is suspended in the lifting limit member slot 83 of the lifting limit member; and the first magnetic block 88a is fixed to the bottom of the magnet bracket 92, which can ensure that the first magnetic block 88a is fixed to the bottom end of the hollow lifting limit member 86. At the same time, a lifting limit member flange 85 extending outward is provided at the bottom of the lifting limit member 86. The outer diameter of the lifting limit member flange 85 is larger than the inner diameter of the suspension fixing frame 82, so that the lifting limit member flange 85 can limit the travel of the first magnetic block 88a in the vertical direction and ensure the overall stability of the suspension lifting detection component.

[0204] See Figure 4 and Figure 18 The collision detection component 93 includes: a second magnetic block 94 located on the movable upper cover 2; a second reed switch 95 located on the housing 1 and below the second magnetic block 94; and a second lifting detection plate 96 located between the second magnetic block 94 and the second reed switch 95. When the movable upper cover 2 and the housing 1 undergo relative displacement in the horizontal direction, the second magnetic block 94 moves closer to or further away from the second reed switch 95, causing the second reed switch 95 to open or close, thereby changing the current signal on the second lifting detection plate 96. The second lifting detection plate 96 is electrically connected to a control component to send the current signal as a detection signal to the control component. In this embodiment, the second reed switch 95 is located directly below the second magnetic block 94.

[0205] See Figure 19The collision detection component 93 also includes a magnetic block bracket 97 fixed on the movable upper cover 2. The magnetic block bracket 97 is in the shape of a magnetic sheet, such as an iron sheet, to attract the second magnetic block 94, so that there is a certain gap between the second magnetic block 94 and the second reed switch 95.

[0206] See Figure 3 , Figures 20-27 The housing 1 includes: an internally sealed housing 18; a functional hole or functional mounting position (covered by the air filter cover 19 and not shown) opened on the housing 18, connecting the inside and outside of the housing 18; and a functional module, selectively and detachably mounted at the functional hole, to detect the sealing status of the housing or maintain the air pressure balance inside and outside the housing.

[0207] See Figures 20-23 When the functional module is an air filter cover 19, it can balance the internal and external air pressure of the housing 18 during lawnmower operation. The air filter cover 19 includes a breathable base 98 installed at the functional hole for air intake and an air filter cover mounting part 100 extending outward from the breathable base 98. The breathable base 98 is provided with corresponding breathable holes 99, which can also be made of breathable material to achieve the purpose of air permeability.

[0208] Two air filter cover mounting portions 100 are provided, extending from the vent base 98 in opposite directions and symmetrically arranged on both sides of the vent base 98. The air filter cover 19 is mechanically fixed to the housing 18 by fasteners. The fasteners can be suitable parts such as screws, bolts, or clips, and are not limited here. Optionally, the air filter cover 19 mounting portions 100 are provided with corresponding air filter cover mounting holes 750 to mechanically fix the air filter cover mounting portions 100 to the housing 18 by screws.

[0209] See Figure 23 The air filter cover 19 has a protrusion 102 on its inner mounting side (the side closest to the housing). The protrusion 102 is located at the edge of the air filter cover mounting portion 100 and is adapted to fit the hole on the housing to limit the air filter cover 19 during installation. The air filter cover mounting portion 100 has a slope on its outer mounting side (the side away from the housing). When the air filter cover 19 is installed, the vent base 98 gradually protrudes from the housing.

[0210] See Figures 24-27 When the functional module is the airtight filling nozzle 108, a pressure gauge can be used to test the airtightness of the housing. The airtight filling nozzle 108 includes a body portion 109 installed at the functional hole and an assembly portion 110 extending outward from the body portion 109. Two assembly portions 110 are provided, which extend from the body portion 109 in opposite directions and are symmetrically arranged on both sides of the body portion.

[0211] See Figure 27 The outer side (the side away from the main body) of the body 109 has an outwardly protruding filling tube 111 for connection to the pressure gauge to detect the airtightness of the lawnmower. The extension direction of the assembly part 110 is perpendicular to the extension direction of the filling tube 111. The airtight filling nozzle 108 mechanically fixes the assembly part 110 to the housing 18 by fasteners (not shown). The fasteners can be suitable parts such as screws or bolts, and are not limited here. Optionally, the assembly part 110 has corresponding assembly holes 112 to mechanically fix the assembly part 110 to the housing 18 by screws. The outer side (the side away from the housing) of the assembly part 110 is sloped so that the body 109 gradually protrudes from the housing when the airtight filling nozzle 108 is installed.

[0212] See Figures 24-27 Different functional modules can be installed at the functional holes manually or by other means to facilitate the detection of the sealing status or to achieve air pressure balance inside and outside the housing 18, thus meeting the functional requirements of the lawnmower in different working states. For example, in the working state, the lawnmower uses the air filter cover 19 to balance the air pressure inside the lawnmower housing 18 with the outside air; or, when it is necessary to test the air tightness, the air filter cover 19 is replaced with the air tight filling nozzle 108, and then the rubber tube is put on the filling tube 111 of the air tight filling nozzle 108. The upper limit of the inflation pressure and the pressure holding capacity are checked with a pressure gauge to check whether they meet the standards, thereby checking whether the seal is reliable.

[0213] Please see Figure 1 , Figure 2 , Figures 28-39 As shown, the lawnmower also includes a walking assembly 8 for driving the lawnmower; the walking assembly 8 includes: at least one walking wheel 9 (i.e., drive wheel) located on the housing 1; at least one swivel wheel 10 located on the housing 1; the walking wheel 9 also includes: a wheel hub 178; a wheel cover 202 located on the wheel hub 178; and a wheel cover trim 203 detachably mounted on the wheel cover 202.

[0214] See Figure 29 The wheel cover 202 is detachably assembled with the wheel hub 178; and the wheel cover trim 203 is snapped between the wheel hub 178 and the wheel cover 202. When replacing the wheel cover trim 203, the wheel cover 202 can be first removed from the wheel hub 178, then the new wheel cover trim 203 can be installed on the wheel cover 202, and finally the wheel cover 202 can be reassembled with the wheel hub 178. The issue of changing the color scheme of the wheels can be addressed by replacing the wheel cover trim separately.

[0215] See Figures 30-32The wheel cover trim 203 includes: a central portion 204, a plurality of protrusions 205 extending outward from the central portion 204 in a circumferential direction; and the protrusions 205 are nested in the corresponding wheel cover mounting holes 210.

[0216] See Figure 30 The middle portion 204 is an annular shape and is coaxially arranged with the wheel hub 178 and the wheel cover 202. The protrusion 205 includes: a decorative block 206, adapted to the wheel cover mounting hole 210; a retaining edge 207, located on one side of the decorative block 206 and protruding from the decorative block 206; and when the protrusion 205 is nested in the corresponding wheel cover mounting hole 210, the decorative block 206 is engaged in the corresponding wheel cover mounting hole 210 so as to protrude from the outside of the wheel cover 201, and the retaining edge 207 abuts against the periphery of the wheel cover mounting hole 210.

[0217] See Figure 31 , Figure 32 The back of the wheel cover trim 203 (the side closest to the wheel hub) is flat, while the front of the wheel cover trim 203 (the side closest to the wheel cover) protrudes through the decorative block 206 to facilitate insertion into the wheel cover mounting hole. To reduce the weight of the decorative block, a weight-reducing groove 208 is provided on the back of the decorative block 206; and a color matching groove is provided on the front of the decorative block 206. A corresponding color plate 209 is provided at the bottom of the color matching groove, allowing the color plate to be recessed into the groove, preventing wear and fading, and protecting the color plate. Of course, the color plate 209 can be designed separately or integrated with the color matching groove to ensure color consistency.

[0218] See Figure 33 , Figure 34 The wheel cover 202 has several wheel cover mounting holes 210 in the circumferential direction to accommodate the protrusions 205 in the wheel cover trim 203. At the intervals between the wheel cover mounting holes 210, there are also inner protrusions 211 (located on the inner side of the wheel cover 202, i.e., the side closer to the wheel cover trim) and outer grooves 214 (located on the outer side of the wheel cover 202, i.e., the side away from the wheel cover trim). Each inner protrusion 211 has a locking head 212 at its edge to engage with the wheel hub 178. Specifically, the inner protrusions 211 and outer grooves 214 can have the same shape or different shapes, but they cannot form a through hole to ensure that the wheel cover fits snugly on the outside of the wheel, maintaining the sealing of the wheel's internal structure.

[0219] See Figures 35-37 The inner side of the hub 178 (the side closest to the housing) is flat to accommodate the overall assembly requirements of the lawnmower; the outer side of the hub 178 (the side closest to the wheel cover trim) is provided with a wheel cover mounting position 217 for mounting the wheel cover; a number of the aforementioned reinforcing ribs 192 are provided in the wheel cover mounting position 217 to support the hub.

[0220] SeeFigure 38 A plurality of hub slots 215 are provided in the wheel cover mounting position 217. Each hub slot 215 is evenly distributed on the circumference of the hub 178 to form a fastening member with the clip head 212 on the wheel cover 202, so that the wheel cover can be detachably installed on the hub through the fastening member.

[0221] See Figure 39 The wheel cover 202 and the wheel hub 178 are positioned and installed by at least two asymmetrically arranged positioning members; wherein the positioning members include: a positioning rod 213 located on the circumference of the wheel cover 202; and a wheel hub positioning hole 216 located on the circumference of the wheel hub 178 and adapted to the positioning rod 213. The wheel cover 202 and the wheel hub 178 are positioned by the positioning rod 213 being inserted into the corresponding wheel hub positioning hole 216, and then assembled.

[0222] Please see Figure 2 , Figures 40 to 51 As shown, this is one feasible assembly method for the walking component 8. The mower has two walking wheels 9 located on either side of the body, generally at the front. Each walking wheel 9 is driven by a separate drive motor. When the drive motors rotate at different speeds, the mower turns; when they rotate at the same speed, it moves in a straight line; and when they rotate in opposite directions, it turns in place. At least one swivel wheel 10 is also located at the rear of the body. The mower is supported and moved by the walking wheels 9 and the swivel wheel 10, which are generally universal wheels to facilitate turning.

[0223] See Figure 3 , Figure 40 and Figure 41 The present invention provides a combined structure (or assembly), the assembly including a charging interface portion 501 and a wheel assembly 502. The charging interface portion 501 is electrically connected to a charging circuit, and the wheel assembly 502 and the charging interface portion 501 form an integral structure. A housing 18 is provided with a cover 503 covering the charging interface portion 501, the cover 503 matching the outer contour of the charging interface portion 501. A receiving portion 504 for accommodating the assembly is provided on the housing 18, the receiving portion 504 being located at the front or bottom of the housing 18. Specifically, the cover 503 is formed on the lower housing 18, and the receiving portion 504 is located below the cover 503.

[0224] Please participate together Figure 41 and Figure 42 As shown, the receiving part 504 has a charging port 505 and a mounting port 506 at the front and bottom of the housing 18, respectively, to facilitate the insertion of the charging interface part 501 and the mating of the charging connector with the charging interface part 501 from the front. The housing 18 has a pair of first guide plates 507 that are inclinedly arranged on both sides of the charging port 505. The cover 503 has a cylindrical first wire threading part 508.

[0225] See Figures 44 to 47 The charging interface section 501 includes a charging mounting base 509, a charging interface 510 disposed on the charging mounting base 509, a charging terminal 511, and a charging seal 512. The charging terminal 511 includes at least one pair of guide tabs, which are electrically connected to the charging circuit. The charging terminal 511 is mounted on both sides of the charging mounting base 509 and protrudes into the charging interface 510.

[0226] See Figures 44-49 The charging mounting base 509 includes a top wall 513, a first side wall 514 and a second side wall 515 disposed opposite to each other, and a third side wall 516 connecting the first side wall 514 and the second side wall 515. The first side wall 514, the second side wall 515, the third side wall 516, and the top wall 513 together form a charging interface 510. A charging terminal 511 is fixed to the charging mounting base 509, and the charging terminal 511 includes a connecting end 517 for connecting to a charging cable and a charging end 518 for contacting a charging connector. The charging interface 510 is located behind the charging port 505. The charging mounting base 509 has a pair of second guide plates 519 located behind the first guide plate 507 and arranged at an angle, used to guide the charging connector into the charging interface 510.

[0227] See Figures 44-49 The charging mounting base 509 has a second wiring section 520 at its top, corresponding to the first wiring section 508 and connected to the charging interface 510. The charging mounting base 509 also has a wire positioning groove 521 that communicates with the second wiring section 520. The second wiring section 520 and the wire positioning groove 521 are specifically located on the top wall 513. The second wiring section 520 is cylindrical, with a notch 522 on it. The wire positioning groove 521 communicates with the second wiring section 520 through the notch 522. The wire positioning groove 521 first extends to both sides of the charging mounting base 509, then extends downwards for a distance and connects to the charging interface 510.

[0228] See Figures 44-49 The charging interface section 501 is provided with a retaining member 523 fixed to the housing 18, and the retaining member 523 is disposed on the charging mounting base 509. Specifically, the retaining member 523 is a pair of spring pieces disposed on both sides of the charging mounting base 509. The upper part of the spring pieces is connected to the charging mounting base 509, and the lower part of the spring pieces is an elastic free end. The receiving part 504 is provided with a sliding groove 524 for receiving the spring pieces, and the bottom of the sliding groove 524 is provided with a protrusion 525 that engages with the lower part of the spring pieces. During assembly, the charging mounting base 509 is extended upward into the receiving part 504 along the sliding groove 524. During the extension process, the spring pieces undergo elastic deformation downward. When installed in place, the spring pieces reset and engage with the two protrusions 525, preventing the charging mounting base 509 from moving downward.

[0229] See Figures 44-49The charging seal 512 simultaneously mates with both the second wire-passing portion 520 and the first wire-passing portion 508 to seal the charging cable as it is guided into the housing 18. The portion of the charging seal 512 that mates with the first wire-passing portion 508 has a threaded structure, while the portion that mates with the second wire-passing portion 520 has a notch 526. The charging seal 512 is a hollow cylindrical shape, including a first fixing portion 527 mounted on the second wire-passing portion 520, a second fixing portion 528 fixed to the first wire-passing portion 508, and a connecting portion 529 connecting the first fixing portion 527 and the second fixing portion 528. The outer diameter of the connecting portion 529 is larger than the outer diameters of the first fixing portion 527 and the second fixing portion 528. The connecting portion 529 is located between the second wire-passing portion 520 and the first wire-passing portion 508, serving a buffering function. Two notches 530 are formed at the lower end of the first fixing portion 527.

[0230] See Figures 44-49 After the charging seal 512 is assembled with the second wire threading part 520, the notches 522 and 526 are aligned vertically. The outer side of the second fixing part 527 is threaded to increase the friction between the charging seal 512 and the lower housing 18. The top of the second fixing part 527 has two wire threading holes 531 for the charging cable to pass through. One end of the charging cable is welded to the connecting end 517, and the other end passes sequentially through the wire positioning groove 521, the notch 522, and the notch 530 into the interior of the charging seal 512, and then exits through the wire threading hole 531 into the housing 18. The diameter of the wire threading hole 531 is set slightly smaller than the outer diameter of the charging cable, ensuring a tight fit between the charging cable and the charging seal 512 within the wire threading hole 531.

[0231] Please refer to Figure 40 , Figure 41 , Figure 44 , Figure 48 and Figure 49 As shown, the wheel assembly 502 includes an axle 534, a caster wheel 10 mounted to the axle 534, an axle positioning assembly 535, a sealing assembly 536, and a support wheel mounting base 537. In this embodiment, the support wheel mounting base 537 and the charging interface portion 501 are an integral structure; specifically, the support wheel mounting base 537 and the charging mounting base 509 are a single molded structure (also referred to as a one-piece structure). Please refer to... Figure 47 As shown, the support wheel mounting base 537 is located behind the third side wall 516. The support wheel mounting base 537 has a mounting hole 538 extending from top to bottom, and the wheel axle 534 is fixed in the mounting hole 538. Specifically, the wheel axle 534 extends upward into the mounting hole 538 and is fixed in the mounting hole 538 by two bushings 539 and fasteners 540.

[0232] See Figure 49The caster wheel 10 includes a first half-wheel 541 and a second half-wheel 542. The first half-wheel 541 and the second half-wheel 542 engage with each other to form a receiving cavity 543. The axle 534 passes through the first half-wheel 541 and enters the receiving cavity 543. The receiving cavity 543 includes a first fitting gap formed by the first half-wheel 541 and the axle 534 and a second fitting gap formed by the first half-wheel 541 and the second half-wheel 542. The first fitting gap and the second fitting gap are located on both sides of the receiving cavity 543.

[0233] See Figures 49-51 The first half-wheel 541 and the second half-wheel 542 are both disc-shaped. The first half-wheel 541 has a first cylindrical portion 544 protruding towards the second half-wheel 542, and a through hole 545 for the axle 534 to pass through is opened on one side of the first cylindrical portion 544. The second half-wheel 542 has a second cylindrical portion 546 and a third cylindrical portion 547 protruding towards the first half-wheel 541, and an annular groove (not labeled) is formed between the second cylindrical portion 546 and the third cylindrical portion 547. When the first half-wheel 541 and the second half-wheel 542 are engaged, the first cylindrical portion 544 extends into the annular groove. The first cylindrical portion 544 and the second cylindrical portion 546 together form a receiving cavity 543. Since the two half-wheels are assembled together, two fitting gaps will be generated, affecting the overall sealing performance of the receiving cavity 543. One of them is the first fitting gap formed between the through hole 545 and the first half-wheel 541, and the other is the second fitting gap formed between the first cylindrical portion 544 and the second cylindrical portion 546.

[0234] See Figures 50-51 The first half-wheel 541 has several mounting holes 548, and the second half-wheel 542 has several mounting posts 549 that mate with the mounting holes 548. Additionally, the second half-wheel 542 has several snap-fit ​​parts 550 circumferentially arranged, each with a latch 551. The first half-wheel 541 has a latching block 552 that mates with the snap-fit ​​parts 550, and the latching block 552 engages with the latch 551. Furthermore, both the first half-wheel 541 and the second half-wheel 542 have several reinforcing ribs (unlabeled) inside.

[0235] See Figures 41-49 The axle 534 includes a horizontally arranged support portion 554 mounted on the support wheel 553, a vertically arranged mounting portion 555 mounted on the support wheel mounting base 537, and a connecting portion 556 connecting the support portion 554 and the mounting portion 555. The axle 534 extends into the receiving cavity 543 through the through hole 545, and its end is located in the third cylindrical portion 547 of the second half wheel 542.

[0236] See Figures 41-49The wheel axle positioning assembly 535 includes a bearing 557, a bearing pressure block 558, a gasket 559, a bearing clamp 560, and a gasket 561 located outside the first half-wheel 541, which are sequentially arranged on the wheel axle 534 to rotatably mount the caster wheel 10 on the wheel axle 534. The bearing 557, bearing pressure block 558, gasket 559, gasket 561, and bearing clamp 560 are all located on the support portion 554. The first half-wheel 541 has an annular portion 562 near the through hole 545, and the annular portion 562 and the gasket 561 together restrict the position of the first seal 563.

[0237] See Figure 49 The sealing assembly 536 includes a first seal 563 for sealing a first mating gap and a second seal 564 for sealing a second mating gap, thereby protecting the axle 534 and the axle positioning assembly 535 in the receiving cavity 543. In one embodiment, the first seal 563 is an oil seal, and the second seal 564 is an O-ring, located within an annular groove and abutting against the first cylindrical portion 544.

[0238] See Figures 44-49 During assembly, the components are first assembled as a single unit, with the charging cable, charging terminal 511, and charging seal 512 all fixed to the charging mounting base 509. One end of the charging cable is soldered to the charging terminal, and the other end passes through the charging seal 512. Then, the entire assembly is assembled from below the mounting opening 506 to the receiving portion 504 of the housing 18, with the charging cable passing through the first wire-passing portion 508. The lower part of the charging seal 512 is tightly sealed to the charging mounting base 509, and the upper part is tightly sealed to the housing 18.

[0239] See Figures 40 to 51 The electric device of the present invention integrates the wheel assembly and the charging interface into a single design, which not only makes the structure compact and effectively reduces the size, but also makes the assembly of the whole machine convenient by fastening the two together to the housing.

[0240] Furthermore, by providing a charging seal at the connection point between the charging interface and the interior of the housing to allow the charging cable to pass through, the interior and exterior of the housing are isolated, maintaining a sealed interior. Further, by providing a first and a second seal on both sides of the receiving cavity, the present invention achieves excellent sealing of the receiving cavity, protecting metal components such as bearings within it and thus sealing critical parts of the wheel axle.

[0241] See Figures 52 to 54A planetary gearbox includes a housing 408 consisting of a top cover 413, an internal gear ring 414, and a bottom shell 415. A planetary gear assembly 414 is disposed within the housing 408 and connected to an output shaft 578 to output power. The planetary gear assembly 414 includes at least a first planetary gear assembly 409, which includes a planet carrier 416, a sun gear 417, and multiple planetary teeth 418. The planetary teeth 418 mesh with the sun gear 417 and the planet carrier 416, respectively. The sun gear 417 and the planet carrier 416 are separate structures, with the sun gear 417 and planetary teeth 418 fitted onto the planet carrier 416. The sun gear 417 and the planet carrier are machined separately and then assembled. The gears and the planet carrier 416 are precision machined to improve gear accuracy. The accuracy of powder metallurgy parts is generally grade 7, while the precision of the precision-machined gears is grade 4-6, thus significantly improving fit and reducing noise. The optional sun gear uses involute spline teeth. Compared with rectangular splines, involute splines have the advantages of more teeth, thicker tooth tips and roots, stronger load-bearing capacity, easier automatic centering, and higher installation accuracy. When used in garden tools such as intelligent lawnmowers (robotic lawnmowers), they can achieve better noise reduction and precise control.

[0242] See Figure 54 A shim 419 is provided between the planetary carrier 416 and the sun gear 417 to prevent overheating and friction between the sun gear 417 and the planetary carrier 416. A rolling pin 420 is fitted on the sun gear 417. The addition of the rolling pin 420 can reduce the friction area, reduce noise, and improve the efficiency of gearbox transmission.

[0243] See Figure 54 The planetary gears 418 of the first planetary gear assembly 409 are plastic gears, while the sun gear 417 and the internal gear ring 414 are metal gears. The plastic planetary gears mesh with the metal gears, and due to the elastic cushioning effect of the plastic, noise can be effectively reduced.

[0244] See Figure 53 The planetary gear assembly 414 includes a first planetary gear assembly 409 and a second planetary gear assembly 410. The second planetary gear assembly 410 is located above the first planetary gear assembly 409 and is connected to the output shaft. The planetary teeth 418 of the first planetary gear assembly 409 are plastic gears, while the sun gear 417 and the internal gear ring 414 are metal gears. Similarly, the planetary teeth 418, sun gear 417, and internal gear ring 414 of the second planetary gear assembly 410 are also metal gears. Alternatively, the planetary teeth 418 of both the first planetary gear assembly 409 and the second planetary gear assembly 410 are plastic gears, while the sun gear 417 and the internal gear ring 414 are metal gears.

[0245] See Figures 52-54The planetary gear assembly 414 includes a first planetary gear assembly 409, a second planetary gear assembly 410, and a third planetary gear assembly 411, arranged sequentially from bottom to top. The third planetary gear assembly 411 is connected to the output shaft. The planetary teeth 418 of the first planetary gear assembly are plastic gears, while the sun gear 417 and internal gear ring 414 are metal gears. Similarly, the planetary teeth 418, sun gear 417, and internal gear ring 414 of the second and third planetary gear assemblies 410 and 411 are also metal gears. Because the second and third planetary gear assemblies 410 and 411 have low gear speeds and high transmission torques, the use of metal gears allows them to support larger transmission ratios.

[0246] Alternatively, the planetary teeth 418 of the first planetary gear assembly 409, the second planetary gear assembly 410, and the third planetary gear assembly 411 can be plastic gears, while the sun gear 417 and the internal gear ring 414 can be metal gears. When the transmission ratio is small, the second planetary gear assembly 410 and the third planetary gear assembly 411 can also use planetary gears made of plastic. The transmission ratio of the first planetary gear assembly 409 is 6.3, the transmission ratio of the second planetary gear assembly 410 is 3.79, the transmission ratio of the third planetary gear assembly 411 is 3.79, and the total transmission ratio is 90.3. The planetary gearbox provided in this disclosure can reduce noise generated during transmission, transmit torque more smoothly, and achieve a higher degree of fit.

[0247] See Figures 55-56 The present invention also discloses a blade assembly 218 for mowing lawns, etc. The blade assembly 218 includes a blade 5 and blades 6 mounted on the blade 5.

[0248] See Figures 55-57 The cutter head assembly 218 includes a disc body 219 and a cutter groove 220 formed by recessing inward from the edge of the disc body 219 along its axial direction. In this embodiment, the disc body 219 is circular. However, in other embodiments, the disc body 219 can be configured as other shapes as needed, such as a regular polygon. A guide platform 221 is provided on the side of the disc body 219 facing the lawn, and a bushing 230 and a reinforcing rib 221 are provided on the side facing away from the lawn. The guide platform 221 is formed by protruding outward from the side of the disc body 219 facing the lawn. The guide platform 221 is adjacent to the cutter groove 220 and located on the grass-facing side of the cutter groove 220.

[0249] When the cutter head assembly 218 is in accordance with Figure 55 When the blade groove 220 rotates counterclockwise in the direction of the arrow shown, the first grass-facing side of the blade groove 220 is the first side 222, and the second side 223 is the secondary grass-facing side; when the blade disc assembly 218 rotates counterclockwise according to the direction of the arrow, the blade groove 220 rotates counterclockwise. Figure 55When rotated clockwise in the opposite direction of the arrow shown, the first grass-facing side becomes the second side 223, and the next grass-facing side becomes the first side 222. This arrangement allows the guide platform 221 to catch the grass before the blade groove 220, thus facilitating the guide platform 221 to straighten and clear long grasses, vines, etc. on the lawn before the blade 6 cuts the grass, preventing them from getting tangled on the blade 6.

[0250] The guide platform 221 has a guide wall 224 on the side opposite to the rotation direction of the disc body 219. In this embodiment, each blade groove 220 corresponds to one guide platform 221, and the guide platform 221 is located on the first grass-facing side of the blade groove 220; however, in other embodiments, multiple guide platforms 221 can be provided on the first grass-facing side of the blade groove 220 as needed, or guide platforms 221 can be provided on both the first grass-facing side and the second grass-facing side of the blade groove 220. In this embodiment, the side of the guide platform 221 opposite to the disc body 219 is a smooth protrusion, but in other embodiments, the side of the guide platform 221 opposite to the disc body 219 can also be provided with a cutting edge (not shown) to enhance the ability of the guide platform 221 to straighten and clear long grass and vines. In this embodiment, the guide platform 221 is arc-shaped, but in other embodiments, the guide platform 221 can also be set in other shapes, such as V-shaped.

[0251] Please see Figure 56 As shown, the bushing 230 is located at the center of the side of the disc 219 facing away from the lawn. The bushing 230 is used to cooperate with the output shaft of a power mechanism so that the cutter head assembly 218 rotates under the action of the output shaft. The reinforcing ribs 231 are arranged radially along the disc 219 and are evenly distributed around the bushing 230 along the circumference of the disc 219. In one embodiment, the side of the disc 219 facing away from the lawn also has secondary reinforcing ribs 232 arranged circumferentially to further enhance the strength of the disc 219.

[0252] See Figures 57-59The blade groove 220 is formed by an inward recess from the side of the disc body 219 facing the lawn and is located between adjacent reinforcing ribs 221. The blade 6 is mounted in the blade groove 220 by a fastener 226 and is configured such that, axially along the disc body 219, neither the blade 6 nor the fastener 226 protrudes outside the blade groove 220. This configuration allows the blade 6 to be concealed within the blade groove 220, thereby preventing the blade 6 and fastener 226 from colliding with hard objects on the lawn, thus preventing the fastener 226 from becoming irremovable. Furthermore, this configuration also prevents the blade 6 from directly contacting grass clippings or soil on the lawn, effectively preventing grass clippings from tangling on the blade 6 and soil from getting stuck between the blade 6 and the fastener 226.

[0253] The cutter groove 220 includes a bottom wall 227 and side walls 225 located on both sides of the bottom wall 227. A boss 233 and a mounting hole 234 recessed inward from the boss 233 are provided on the bottom wall 227. The blade 6 is movably and fixedly mounted on the boss 233 via the fastener 226 and the mounting hole 234. This design effectively reduces the friction between the blade 6 and the disc 219, thus avoiding the drawback of excessive friction caused by directly mounting the blade on the disc 219, and effectively improving the working efficiency of the cutter disc assembly 218.

[0254] The angle between the bottom wall 227 and the side wall 225 of the groove is an obtuse angle, and a chamfer 229 is provided at the intersection of the side wall 225 and the disc body 219. This design can effectively reduce the friction between the disc body 219 and the lawn, thereby effectively improving the working efficiency of the blade assembly 218. In the radial direction of the disc body 219, the blade groove 220 is also provided with a through groove 123 on the side near the axis of the disc body 219 to allow the blades 6, grass clippings, pebbles, etc. to pass through.

[0255] In one embodiment, the guide platform 221 and the fastener 226 are concentric circles. In this embodiment, the fastener 226 is a screw, but in other embodiments, the fastener 226 can be other structures, and the present invention does not impose specific limitations on this. In other embodiments, the blade groove 220 can also be provided with a groove cover (not shown) opposite to the groove bottom wall 227 to prevent grass, vines, and mud from getting stuck on the blade 6. The groove cover and the blade groove 220 can be integrally set or separately set. The blade disc assembly 218 of the present invention installs the blade 6 in the blade groove 220 on the blade disc 5, so that the blade 6 is concealed in the blade disc 5, thereby preventing the blade 6 from getting stuck with grass or mud, and thus effectively improving the working efficiency of the blade disc assembly 218.

[0256] See Figure 60 and Figure 61 In this invention, the lawnmower 100 includes a height adjustment mechanism 565, which is located inside the housing 18. The height adjustment mechanism 565 rotates to drive the cutting mechanism 3 to move up and down relative to the housing 1, thereby changing the cutting height of the cutting mechanism 3. A multi-threaded engagement structure (not labeled) is provided between the height adjustment mechanism 565 and the cutting mechanism 3. This multi-threaded engagement structure includes a first threaded portion 569 on the height adjustment mechanism 565 and a second threaded portion 580 on the cutting mechanism 3, both of which have multi-threaded configurations. Specifically, the height adjustment mechanism 565 includes, from bottom to top, a first threaded portion 569, a limiting portion 570, a locking portion 566, a connecting portion 568, and a knob. The height adjustment mechanism 565 can be integrally formed, or it can be assembled.

[0257] See Figures 60 to 62 The cutting mechanism 3 includes a housing 574, a motor (not shown) mounted on the housing 574, and a cutting assembly (not shown) for mowing grass mounted on the output shaft of the motor. A second threaded portion 580 is provided on the housing 574. The housing 574 includes a bottom wall 573a and a bottom wall 573b, which form a receiving cavity 576 for housing the motor. The bottom wall 573b protrudes outward to form a protrusion 572, which has a through hole 571. The second threaded portion 580 is located on the inner wall of the through hole 571. In this embodiment, the first threaded portion 569 is a male thread, and the second threaded portion 580 is a female thread. In other embodiments, the first threaded portion 569 may be a female thread, and the second threaded portion 580 may be a male thread.

[0258] See Figures 60 to 62 The multi-start threaded mating structure has different thread thicknesses. In this embodiment, the multi-start threaded mating structure is preferably a three-start thread. Specifically, the thread thicknesses of the two starting threads 577 and 578 of the first threaded portion 569 are equal, while the thread thickness of the third starting thread 579 is less than that of threads 577 and 578. When the first threaded portion 569 is screwed into the second threaded portion 580, if the multi-start thread positions are misaligned, the first threaded portion 569 cannot be screwed in normally; only threads with the same corresponding thread thickness can be screwed in.

[0259] The screw-in direction of the first threaded portion 569 is unique, thus limiting the assembly of the height adjustment mechanism 565 to the cutting mechanism 3 from a specific direction. This design eliminates the need for additional markings or other auxiliary devices to guide operators during installation, making operation convenient. Furthermore, since there are three stress points at the connection point during multi-threaded connection, the engagement of the first threaded portion 569 and the second threaded portion 580 is less prone to jamming. Therefore, the multi-threaded design with different thicknesses effectively prevents mistaken insertion. See... Figures 60 to 64In other embodiments, the thread thickness of the two threads can be equal, while the thread thickness of the third thread 579 is greater than that of the two threads, or the thread thickness of the three threads can be set to be different. Both can achieve the purpose of limiting the height adjustment mechanism 565 to be assembled to the cutting mechanism 3 from a specific direction.

[0260] See Figures 60 to 64 The limiting part 570 is used to limit the rotation angle of the height adjustment mechanism 565. The housing 1 is provided with a protrusion (not shown) that cooperates with the limiting part 570. The limiting part 570 and the protrusion block each other to limit the rotation position of the height adjustment mechanism 565 in two directions, thereby limiting the highest and lowest positions of the height adjustment mechanism 565. Due to the mutual blocking between the limiting part 570 and the protrusion, the rotation angle of the height adjustment mechanism 565 is less than 360°.

[0261] See Figures 60 to 64 The locking part 566 is used to lock the height adjustment mechanism 565 after the height adjustment mechanism 565 has been rotated and adjusted, thus preventing unexpected changes in the cutting height. See Figure 64 An elastic element 582, which mates with the locking part 566, is fixed on the housing 1. The locking part 566 is a gear structure, and the elastic element 582 engages with the tooth groove of the gear structure to lock the height adjustment mechanism 565. Specifically, the elastic element 582 has a top end 581 that matches the shape of the tooth groove of the gear structure. The top end 581 is locked in the tooth groove to prevent the height adjustment mechanism 565 from rotating. When the height adjustment mechanism 565 is manually rotated, the gear structure rotates accordingly, and the elastic element 582 undergoes elastic deformation and engages in the next tooth groove.

[0262] See Figures 60 to 62 The connecting part 568 is used to fix the knob, and the height adjustment mechanism 565 is rotated by manually rotating the knob. In other embodiments, the knob can also be set as a gear structure, and linked with other motor output shafts through transmission gears to achieve electrically driven rotation, thereby further improving the user experience of the operator.

[0263] See Figures 65 to 66The lawnmower provided by the present invention includes a housing 18 comprising an upper base 583 and a lower base 584 cooperating with the upper base 583. The lower base 584 is provided with a sliding channel 587 penetrating through it. The cutting mechanism 3 can slide within the sliding channel 587 and at least partially protrude from the sliding channel 587 in a direction away from the bottom surface of the lower base 584, so that the cutting mechanism 3 can cut lawns, vegetation, etc. In this embodiment, the housing 18 is composed of two components, the upper base 583 and the lower base 584, and the sliding channel 587 only penetrates the lower base 584. However, in other embodiments, the housing 18 may also be composed of one or more components, and the sliding channel 587 may also penetrate the housing 18.

[0264] Please see Figure 67 As shown, the cutting mechanism 3 is disposed within the sliding channel 587 and is used for cutting lawns, vegetation, etc. It includes a base 595, a prime mover (such as an electric motor) 598 mounted on the base 595, and a cutter assembly 592 mounted on the output shaft of the prime mover 598. The base 595 includes a first sidewall 594, a second sidewall opposite to the first sidewall 594, a third sidewall 596 perpendicular to the first sidewall 594, and a fourth sidewall opposite to the third sidewall 596. The first sidewall 594 protrudes towards the adjusting mechanism 585, forming a protrusion 589. The protrusion 589 has a threaded hole penetrating the protrusion 589, and the threaded hole contains an internal thread.

[0265] In this embodiment, the prime mover 598 is an electric motor; however, in other embodiments, the prime mover 598 may also be a gasoline engine. The cutter assembly 592 includes a cutter head 5 mounted on the output shaft of the prime mover 598 and a blade 6 mounted on the cutter head 5. The output shaft of the prime mover 598 rotates at high speed, driving the cutter head 5 to rotate at high speed, thereby causing the blade 6 to rotate at high speed, which is beneficial for the blade 6 to cut lawns, vegetation, etc.

[0266] See Figure 67 The adjusting mechanism 585 is used to adjust the cutting height of the cutting mechanism 3, and includes an adjusting member 588 and a driving member 590 linked to the adjusting member 588. In this embodiment, the adjusting member 588 is a knob, and the driving member 590 is a screw with external threads. The driving member 590 engages with the internal thread of the protrusion 589 through its external threads, driving the base 595 to slide up and down within the sliding channel 587, thereby adjusting the length of the tool assembly 592 protruding from the sliding channel 587 at the end opposite to the housing 1, and thus achieving the purpose of adjusting the cutting height of the cutting mechanism 3.

[0267] To ensure smoother engagement of the external and internal threads during adjustment, the screw has multiple threads. In this embodiment, the screw has at least three threads. In this embodiment, the adjusting element 588 is a knob, which is manually rotated to achieve adjustment. The knob has an indicator label, and the housing 1 has a gear label that matches the indicator label. When the knob is rotated, the indicator label can point to different gear labels, making it convenient for the operator to know the cutting height quickly and easily. In other embodiments, the adjusting element 588 can also be a gear, which is linked to other motor output shafts through transmission gears to achieve electrically driven rotation, thereby further improving the user experience. Since the protrusion 589 protrudes from the first sidewall 594, the driving element 590 is offset to one side of the base 595. This arrangement can reduce the overall height of the cutting mechanism 3 and the adjusting mechanism 585 after assembly, thereby lowering the center of gravity and making the lawnmower run more smoothly.

[0268] See Figures 67-70 As shown, the guiding mechanism 586 includes an elastic guide 586a and a guide groove 586d, wherein the guide groove 586d and the elastic guide 586a are capable of relative sliding. One of the guide groove 586d and the elastic guide 586a is disposed on the housing 18, and the other is disposed on the base 595. In this embodiment, the guide groove 586d is disposed on the base 595, and the elastic guide 586a is fixedly mounted on the housing 18. Specifically, in this embodiment, there are two guide grooves 586d, located on the third sidewall 596 and the fourth sidewall, respectively.

[0269] However, in other embodiments, the guide groove 586d can also be a single unit and disposed on the second sidewall. One end of the elastic guide 586a is provided with a positioning hole 603, and the other end is provided with a positioning groove 602. The elastic guide 586a cooperates with a corresponding fixing structure (not shown) on the housing 18 through the positioning hole 603 and the positioning groove 602, so that the elastic guide 586a is fixedly installed on the housing 18. The guide groove 586d includes a bottom wall 586c and a pair of side walls 586b, with the elastic guide 586a located between the pair of side walls 586b. A guide rail 597 is also provided on the bottom wall 586c. The elastic guide 586a includes a base 600 and a cantilever 601 extending from the base 600 towards the bottom wall 586c, the cantilever 601 elastically abutting against the bottom wall 586c to limit the base 595. The substrate 600 has a slot 605 in a direction perpendicular to the bottom wall 586c of the groove, and the cantilever 601 spans the slot 605.

[0270] In this embodiment, the slot 605 penetrates the substrate 600; however, in other embodiments, the slot 605 may be a blind slot. Alternatively, in other embodiments, the substrate 600 may not have the slot 605.

[0271] The cantilever 601 has an arc-shaped cross-section in the transverse direction. In this example, the cantilever 601 spans the slot 605 in a direction perpendicular to the slot sidewall 586b. The cantilever 601 includes a first end 606 and a second end 604 located on both sides of the slot 605. The first end 606 is fixedly connected to the base 600, and the second end 604 is separate from the base 600. The cantilever 601 is also provided with a guide groove 607 that extends through the cantilever 601 along the sliding direction of the base 595. The guide groove 607 is located between the first end 606 and the second end 604. The guide groove 607 cooperates with the guide rail 597 to facilitate alignment during installation. The end of the guide groove 607 is flared.

[0272] See Figures 71 to 72 , Figure 71 Another embodiment of the elastic guide 608 is provided. The elastic guide 608 includes a base 609 and cantilever 610 extending outward from the base 609. The base 609 has a slot 611 in a direction perpendicular to the bottom wall 586c of the groove. In this embodiment, the slot 611 penetrates the base 609, but in other embodiments, the slot 611 may also be a blind slot. Alternatively, in other embodiments, the base 609 may not have the slot 611. In this embodiment, there are two slots 611 and two cantilever 610s, and a pair of slots 611 are arranged along the sliding direction of the base 595, and a pair of cantilever 610s span a pair of slots 611 along the sliding direction of the base 595. An elastic arm 612 is provided on the side of the base 609 opposite to the side wall 586b of the groove, and the elastic arm 612 and the base 609 form an O-shape.

[0273] See Figure 67When adjusting the cutting height of the cutting mechanism 3 of the lawnmower, the adjusting member 588 is first rotated, causing the driving member 590 to rotate, thereby driving the base 595 to slide along the sliding channel 587, achieving the purpose of adjusting the cutting height of the cutting mechanism 3. At this time, the cantilever 601 moderately abuts against the side wall of the base 595 to limit the base 595 in a direction perpendicular to the bottom wall 586c of the groove; the base 600 and the elastic arm 612 moderately abut against the side wall 586b of the groove to limit the base 595 in a direction perpendicular to the side wall 586b of the groove, thereby avoiding problems such as bending of the sliding path of the base 595 and tilting of the base 595, ensuring that the base 595 will not get stuck. By providing the guiding mechanism 586, the lawnmower will not experience problems such as bending of the sliding path of the prime mover or tilting of the prime mover during the adjustment of the cutting height, thereby effectively improving the user experience.

[0274] See Figure 73 and Figure 75 The present invention also provides a charging device, which includes a first charging component 459 and a second charging component 475 adapted thereto. The first charging component 459 has a symmetrical structure and has a receiving cavity 460 inside. The receiving cavity 460 has a first elastic terminal component 461 and a second elastic terminal component 464. The first elastic terminal component 461 includes a first groove 462 and a first elastic terminal 463. The first groove 462 is fixed in the receiving cavity 460, and the first elastic terminal 463 is fixed in the first groove 464. Within 62, the second elastic terminal assembly 464 includes a second groove 465 and a second elastic terminal 466. The second groove 465 is fixed within the receiving cavity 460, and the second elastic terminal 466 is fixed within the second groove 465. An embedded space 467 is formed between the first elastic terminal 463 and the second elastic terminal 466. A tapered opening 468 is provided on one side of the first charging assembly 459, and the tapered opening 468 communicates with the embedded space 467. A first mounting portion 469 is provided at the end of the first charging assembly 459 opposite to the tapered opening 468.

[0275] See Figure 73 and Figure 74The first elastic terminal 463 includes a first fixing portion 470 and a first contact portion 471. The first contact portion 471 includes a first initial contact portion 472 and a first charging contact portion 473. The first charging contact portion 473 is connected to the first fixing portion 470 through the first initial contact portion 472. The first fixing portion 470 is fixed within the first groove 462. The first contact portion 471 also includes a first bent tail portion 474, which is connected to the first charging contact portion 473. The first fixing portion 470 and the first initial contact portion 472 form a first rounded corner (not shown in the figure), with an angle less than 90 degrees. The first initial contact portion 472 and the first charging contact portion 473 form a second rounded corner (not shown in the figure), with an angle greater than 90 degrees and less than 180 degrees. The first bent tail portion 474 faces away from the embedded space 467. The angle of the rounded corner should be understood as the angle at which the extension lines of the two sides of the rounded corner intersect. The second elastic terminal 466 and the first elastic terminal 463 have the same structure.

[0276] See Figure 75 The second charging component 475 has a symmetrical structure. A protrusion 476 is provided on one side of the second charging component 475. A second mounting part 477 is provided on the side of the second charging component 475 opposite to the protrusion 476. The protrusion 476 is connected to the second mounting part 477 through a tapered part 478. A third elastic terminal 479 and a fourth elastic terminal 480 are provided on the protrusion 476.

[0277] Figure 76 This is a schematic diagram of the structure of the third elastic terminal 479 described in some embodiments of this disclosure. (Refer to...) Figure 76 The third elastic terminal 479 is fishhook-shaped and includes a third fixing portion 481 and a first hook portion 482. The third fixing portion 481 has a first protrusion 483 and a first latch 484. The first protrusion 483 is located at the end of the third fixing portion 481 connected to the first hook portion 482, and the first protrusion 483 is located on the side of the third fixing portion 481 facing away from the first hook portion 482. The first latch 484 is located at the end of the third fixing portion 481 away from the first hook portion 482. The structure of the fourth elastic terminal 480 is the same as that of the third elastic terminal 479.

[0278] Figure 77 This is a cross-sectional view of the second charging component in this disclosure. (Refer to...) Figures 75 to 77The protrusion 476 includes a protrusion terminal fixing assembly 485, a lower cover plate 492, and an upper cover plate (not shown in the figure). The protrusion terminal fixing assembly 485 is disposed between the lower cover plate 492 and the upper cover plate (not shown in the figure). The protrusion terminal fixing assembly 485 includes a first fixing plate 486, a second fixing plate 487, and an inner plate 488. The first fixing plate 486 and the second fixing plate 487 are disposed on both sides of the inner plate 488.

[0279] A first recessed groove 489 is provided between the first fixing plate 486 and the built-in plate 488. A first fixing buckle 490 is provided on the side of the first fixing plate 486 facing away from the built-in plate 488. A first hook portion 482 is embedded in the first recessed groove 489. A first latch 484 is detachably connected to the first fixing buckle 490. A second recessed groove 491 is provided between the second fixing plate 487 and the built-in plate 488. A second fixing buckle (not shown in the figure) is provided on the side of the second fixing plate 487 facing away from the built-in plate 488. A second hook portion (not shown in the figure) is embedded in the second recessed groove 491. A second latch (not shown in the figure) is detachably connected to the second fixing buckle (not shown in the figure).

[0280] See Figure 77 The first hook portion 482 is provided with a first grid opening, and the first embedded groove 489 is provided with a first baffle. The first baffle is embedded in the first grid opening to prevent the first hook portion 482 from moving up and down. The second hook portion is provided with a second grid opening, and the second embedded groove 491 is provided with a second baffle. The second baffle is embedded in the second grid opening to prevent the second hook portion from moving up and down.

[0281] Figure 78 This is a schematic diagram of the structure of the first fixing buckle 490 in this disclosure. The structure of the second fixing buckle is the same as that of the first fixing buckle 490. (Refer to...) Figure 78 The first fixing buckle 490 has an inclined surface 493 and a vertical surface 494, which are located on opposite sides of the first fixing buckle 490, with the inclined surface 493 facing the first hook portion (not shown in the figure). The inclined surface 493 facilitates the first fixing buckle 490 to engage with the first latch 484, and the vertical surface 494 prevents the first fixing buckle 490 from disengaging from the first latch 484.

[0282] Figure 79 This is a schematic diagram of the first process used by the first charging component 459 and the second charging component 475 in this disclosure. (Refer to...) Figure 73 , Figure 74 , Figure 75and Figure 79 The distance between the first charging contact 473 and the second charging contact 497 is less than the distance between the third elastic terminal 479 and the fourth elastic terminal 480. The second charging component 475 is inserted into the first charging component 459 along the X direction. During the first use of the first charging component 459 and the second charging component 475, the third elastic terminal 479 elastically contacts the first initial contact 472, and the fourth elastic terminal 480 elastically contacts the second initial contact 498. When the second charging component 475 is inserted into the first charging component 459 along the X direction, because the opening of the conical opening 468 is relatively large, the protrusion 476 is more easily inserted into the conical opening 468. The sidewall of the conical opening 468 guides the insertion direction of the protrusion 476, allowing it to slide along the sidewall into the embedded space 467.

[0283] Figure 80 This is a schematic diagram of the second process used by the first charging component 459 and the second charging component 475 in this disclosure. (Refer to...) Figure 73 , Figure 74 , Figure 76 and Figure 80 The second charging component 475 is inserted into the first charging component 459 along the X direction. During the second process of using the first charging component 459 and the second charging component 475, the protrusion 476 is inserted into the embedded space (not shown in the figure). The connection between the first initial contact portion 472 and the first charging contact portion 473 is in elastic contact with the third fixing portion 481. The first charging contact portion 473 is in elastic contact with the first protrusion 483. The connection between the second initial contact portion 498 and the second charging contact portion 497 is in elastic contact with the fourth fixing portion 499. The second charging contact portion 497 is in elastic contact with the second protrusion 500. The shape of the conical portion 478 matches the shape of the conical opening 468. The conical portion 478 fills the conical opening 468.

[0284] See Figure 80The first elastic terminal 463 and the third elastic terminal 479 are in elastic contact, and there are two contact points between the first elastic terminal 463 and the third elastic terminal 479. The connection between the first initial contact portion 472 and the first charging contact portion 473 will also lock the first protrusion. The second elastic terminal 466 and the fourth elastic terminal 480 are in elastic contact, and there are two contact points between the second elastic terminal 466 and the fourth elastic terminal 480. The connection between the second initial contact portion and the second charging contact portion 498 will also lock the second protrusion. This ensures the stability of the contact and also prevents the second charging component 475 from falling out of the first charging component 459.

[0285] See Figures 74-76 The first elastic terminal 463, the second elastic terminal 466, the third elastic terminal 479, and the fourth elastic terminal 480 can be bent metal sheets.

[0286] See Figures 81-83 The upper base 583 and lower base 584 in the housing 18 together form a receiving cavity 613 to house the control circuit board 618, which is mounted on the lower base 584. The lawnmower may also include a battery pack (not shown) that powers the motor, and the battery pack and motor 637 are mounted on the lower base 584. The assembly is used to directly or indirectly control the lawnmower to perform a certain action, including a first device mounted on the upper base 583 and a second device mounted on the lower base 584, which are not electrically connected. This arrangement effectively avoids electrical connections between components located in the upper base 583 and components located in the lower base 584, thus preventing inconvenience when replacing the upper base 583.

[0287] In this embodiment, when the assembly is working or not working, the first device is not energized, meaning no working current flows through it; the second device is energized, meaning working current flows through it. When the first and second devices cooperate, the assembly controls the lawnmower to perform corresponding actions. At this time, the first and second devices are not in contact / electrically connected. That is, there is no cable connection between the first and second devices; for example, the first and second devices are sensed through magnetic or optical elements. This arrangement not only allows for direct or indirect control of the lawnmower through the contactless cooperation of the first and second devices, but also effectively avoids the drawback of the prior art where components mounted on the upper base 583 and components mounted on the lower base 584 need to be electrically connected through wired lines or conductive terminals, thereby reducing the assembly difficulty of the upper base 583 and lower base 584.

[0288] When the upper base 583 needs to be replaced due to aging or impact damage, the operator can easily and quickly disassemble and replace it without having to manage the wiring or reconnect the conductive terminals, thus improving the operator's work efficiency. Furthermore, since the first device is mounted on the upper base 583 and the second device is mounted on the lower base 584, and the first and second devices are in a non-contact fit, the second device and the lower base 584 can be directly packaged as a single unit, thereby enhancing the lawnmower's waterproof performance.

[0289] In one embodiment, the second device is integrated onto the control circuit board 618. The assembly may include a lift sensor 632 for detecting whether the lawnmower is lifted, a collision sensor 639 for detecting whether the lawnmower collides with an obstacle, a safety switch 620 for controlling the lawnmower's power on or off, and / or a safety lock 622 for controlling whether the lawnmower is in an active state, etc. Of course, in other embodiments, the second device may also include other electrical components, such as a circuit board, a battery pack, a motor 637, etc. The lift sensor 632, collision sensor 639, safety switch 620, and safety lock 622 are described in detail below.

[0290] See Figures 81-85 The upper base 583 is provided with a support column 614 and a top cover 615 mounted on the support column 614. Please refer to [link / reference]. Figure 82 as well as Figure 83 As shown, the support column 614 includes a mounting plate 628 fixedly mounted on the upper base 583, an elastic element 629 mounted on the mounting plate 628, a shock-absorbing element 631 mounted on the end of the elastic element 629 away from the mounting plate 628, and a protective sleeve 630 sleeved around the elastic element 629. In this embodiment, the elastic element 629 is a spring, and the protective sleeve 630 is a bellows. The top cover 615 is mounted on the shock-absorbing element 631, and a handle 619 is provided on it. When the user holds the handle 619 and lifts the lawnmower, the elastic element 629 undergoes elastic deformation, and the top cover 615 moves in a direction away from the upper base 583. When the lawnmower collides with an obstacle, the top cover 615 continues to move a distance along the original forward direction of the lawnmower under the action of inertia, at which time the elastic element 629 undergoes elastic deformation.

[0291] See Figures 81-82The lifting sensor 632 is used to detect the vertical relative movement between the top cover 615 and the housing 18, and includes a metal plate (not shown) mounted on the support column 614 and a first Hall sensor 633 mounted on the lower base 584. The first device includes a control component, which is the metal plate; the second device is the first Hall sensor 633. The control component is non-electrically connected to the second device and is used to control the second device. When the lawnmower is lifted, the metal plate moves away from the first Hall sensor 633 under the action of the support column 614, thereby causing a signal change in the first Hall sensor 633. At this time, the first Hall sensor 633 controls the lawnmower to stop working to prevent the cutter assembly 616 from injuring people. Of course, in other embodiments, the first Hall sensor 633 can also send a corresponding signal to the control circuit board 618 so that the control circuit board 618 can control the cutter assembly 616 to stop working.

[0292] In this embodiment, the first component of the lift sensor 632 is a metal plate, and the second component is a Hall sensor. However, in other embodiments, the first component of the lift sensor 632 can also be a magnet, and the second component can also be a reed switch. Alternatively, the first component of the lift sensor 632 can be an armature, and the second component can also be an inductive sensor. In this embodiment, the first component of the lift sensor 632 is mounted on the support column 614. However, in other embodiments, the first component of the lift sensor 632 can also be mounted on the top cover 615. In this embodiment, the first component is a metal plate, and the second component is a Hall sensor. However, in other embodiments, the first component can also be a Hall sensor, and the second component can be a metal plate.

[0293] See Figure 83The collision sensor 639 is used to detect the horizontal movement of the top cover 615, and includes a third magnet 640 mounted on the top cover 615 and a third Hall sensor 641 mounted on the lower base 584. The third magnet 640 is the control component of the first device, and the third Hall sensor 641 is the second device. When the lawnmower collides with an obstacle during its movement, the top cover 615 will continue to move forward a distance along the original direction of the lawnmower under the action of inertia, thereby causing a relative displacement between the third magnet 640 and the third Hall sensor 641, which in turn causes a change in the signal of the third Hall sensor 641. At this time, the third Hall sensor 641 controls the lawnmower to retreat a distance so that the lawnmower can avoid the obstacle. In this embodiment, the third Hall sensor 641 directly controls the lawnmower to retreat, but in other embodiments, the third Hall sensor 641 can also send a corresponding signal to the control circuit board 618 so that the control circuit board 618 can control the lawnmower to retreat. In this embodiment, the collision sensor 639 is provided at both the front and rear of the lawnmower. In other embodiments, the first component of the collision sensor 639 may be an armature, and the second component may be an inductive sensor.

[0294] See Figures 81-82 The upper base 583 is equipped with a first switch, and the lower base 584 is equipped with a second switch. The first switch and the second switch are not electrically connected, and the first switch controls the on and off states of the second switch. Specifically, the safety switch 620 is used to control the lawnmower's power supply and includes a button 621 mounted on the upper base 583, a first magnet 624 (i.e., a first device or a first switch) mounted on the button 621, and a first reed switch 625 (i.e., a second device or a second switch) mounted on the lower base 584. The button 621 is pivotally mounted on the upper base 583, including a first end 626 and a second end 627 located at both ends of the pivot. The first magnet 624 is mounted on the first end 626. When the first end 626 is pressed, the first magnet 624 approaches the first reed switch 625, at which point the first reed switch 625 is closed, and the lawnmower is powered on. When the second end 627 is pressed, the first magnet 624 moves away from the first reed switch 625, at which time the first reed switch 625 is in the off state, and the lawnmower is in the power-off state.

[0295] See Figures 81-82The safety lock 622 is used to control whether the lawnmower is in an active state. When the lawnmower is in an active state, it can be started; when it is in an inactive or locked state, it cannot be started. The safety lock 622 includes a safety key 623, a motor lock body 634 mounted on the upper base 583 and cooperating with the safety key 623, and a second reed switch 635 (i.e., a second device) mounted on the lower base 584 or the lock body 634. A second magnet 636 (i.e., a first device) is provided at one end of the safety key 623 near the second reed switch 635. When the safety key 623 is inserted into the lock body 634 and rotated so that the second magnet 636 approaches the second reed switch 635, the second reed switch 635 is in the closed state, and the lawnmower is in the active state. When the safety key 623 is pulled out of the lock body 634 or rotated so that the second magnet 636 moves away from the second reed switch 635, the second reed switch 635 is in the open state, and the lawnmower is in the locked state.

[0296] See Figures 86-91 The lawnmower body 644 includes at least a battery assembly (not shown) for power supply and at least two drive motors (not shown) for driving the mowing assembly and the walking assembly 8. The lawnmower body 644 should also include other components for controlling and driving the lawnmower's operation. Specifically, the body 644 also has a charging terminal 645 for electrically connecting to an external charging station to charge the battery assembly. The housing assembly 640 connects the cutting assembly and the walking assembly 8 and houses the body 644. In this application, the housing assembly 640 includes a first housing 641 and a second housing 642 that are interlocked, with the body 644 housed between the first housing 641 and the second housing 642 to prevent the body 644 from being affected by the external environment during use and to ensure the normal operation of the body 644.

[0297] See Figures 87-91 The first housing 641 is hollow, and the second housing 642 is generally plate-shaped. The first housing 641 is fastened to the edge of the second housing 642 by a fastening structure, and the projection of the first housing 641 on the horizontal plane overlaps the projection of the second housing 642 on the horizontal plane. In one embodiment, the fastening structure is a snap-fit ​​structure. Of course, in other embodiments of this application, the fastening structure can also be a threaded structure, as long as the first housing 641 and the second housing 642 are detachably connected.

[0298] See Figures 87-91The first housing 641 and the second housing 642 are respectively formed with a first grip structure 643 and a second grip structure 654 for carrying the housing assembly 640 or the lawnmower. The housing assembly 640 is defined to have a first end and a second end that are disposed opposite to each other. The first grip structure 643 is located at the first end of the first housing 641 and the second grip structure 654 is located at the second end of the second housing 642. The projections of the first grip structure 643 and the second grip structure 654 on the horizontal plane are staggered.

[0299] See Figures 87-91 The first lifting structure 643 and the universal wheel 10 are both located at the first end of the housing assembly 640, and the second lifting structure 654, the travel wheel 9 and the third travel wheel are all located at the second end of the housing assembly 640. This arrangement allows users to easily select different lifting structures to move the housing assembly 640 or the lawnmower according to different needs.

[0300] See Figure 88a The first grip structure 643 is recessed from the outside of the first housing 641 inwards, and extends through the first housing 641, forming at least one grip portion 652 along the edge of the through-hole. Specifically, in this embodiment, the first end of the first housing 641 has a first protrusion 646 extending outwards along a horizontal plane and a second protrusion 647 offset vertically from the first protrusion 646. The first grip structure 643 is located between the first protrusion 646 and the second protrusion 647. If the position and orientation of the user's hand when carrying the housing assembly 640 / lawnmower together constitute the grip position during transport, then the first grip structure 643 and the second grip structure 654 can provide at least two grip portions 652 with different grip positions.

[0301] See Figures 88a-88b The grip portion 652 formed on the first grip structure 643 includes a first grip portion 648, a second grip portion 649 arranged vertically at the grip positions, and a through hole 605 located between the first grip portion 648 and the second grip portion 649. The distance between the through hole 650 and the main body 644 is 5 to 10 cm, so as to facilitate the user to put his hand into the first grip structure 643 to realize the carrying of the housing assembly 640 / lawn mower.

[0302] See Figures 86-88b The first grip 648 and the second grip 649 are both inclined, and the inclination of the first grip 648 is greater than that of the second grip 649. The charging terminal 645 is arranged facing the through hole 650. With this arrangement, the external charging device can be directly electrically connected to the charging terminal 645 through the through hole 650, which further improves the practicality of the lawnmower.

[0303] See Figure 89The grip portion 652 also includes a first fastening space 653 recessed from the edge of the first grip portion 648 toward the interior of the first housing 641 and a second fastening space 651 recessed from the edge of the second grip portion 649 toward the interior of the first housing 641. The projection of the first fastening space 653 on the horizontal plane covers the projection of the second fastening space 651 on the horizontal plane. In this embodiment, the first fastening space 653 is formed in the first protrusion 646 and the second fastening space 651 is formed in the second protrusion 647. With this configuration, when the user lifts the housing assembly 640 / lawn mower through the first grip portion 648 or the second grip portion 649, the user can bend their fingers and accommodate them in the first fastening space 653 or the second fastening space 651, so as to effectively reduce the fatigue accumulation of the user gripping the first grip portion 648 or the second grip portion 649.

[0304] See Figures 90-91 The second grip structure 654 is grooved. In this application, the second grip structure 654 is recessed from the bottom of the second housing 642 into the housing assembly 640, and at least one grip portion 652 is formed on the edge of the second grip structure 654.

[0305] See Figures 90-91 The grip portion 652 formed on the second housing 642 includes a third grip portion 658 and a third fastening space 657 corresponding to the third grip portion 658. The third grip portion 658 extends along the surface of the second housing 642 toward the center of the third grip portion 658. In one embodiment of this application, the second lifting structure 654 also has an inclined guide surface 656 opposite to the third grip portion 658. This arrangement facilitates the user to insert their fingers into the third fastening space 657 and grip the third grip portion 658, ultimately enabling the transport of the housing assembly 640 / lawn mower.

[0306] See Figures 86-91 In one embodiment of this application, the parts of the first grip 648, the second grip 649, and the third grip 658 used for gripping and tending to rotate the housing assembly 640 / lawn mower are all rounded. This design can effectively reduce the feeling of the grip 652 pressing against the hand and effectively improve the user-friendliness of the housing assembly 640 and the lawn mower.

[0307] See Figures 86-91 In this application, only the first grip structure 643 having a first grip portion 648 and a second grip portion 649, and the second grip structure 654 having a third grip portion 658 are used as examples for illustration. Of course, in other embodiments of this application, the first grip structure 643 and the second grip structure 654 may also be provided with multiple structures for gripping. That is, the number and structure of the grip portion 652 corresponding to each grip structure can be selected according to actual needs and are not limited here.

[0308] See Figures 86-91 This invention, through a housing assembly 640 equipped with a first gripping mechanism 643 and a second gripping structure 654, provides at least two grip portions 652. Users can choose the grip portion 652 in different positions according to their physical condition and needs. This effectively reduces user fatigue when gripping the housing assembly 640 and avoids strain on the user's fingers or injury from the grip portion. Furthermore, lawnmowers using the housing assembly 640 of this application are easier to transport, significantly improving their practicality.

[0309] See Figure 92 The present invention provides a connection structure, which is mainly used as a connection method on the housing 1 of a lawnmower, and is used for the installation between the main body 661 and the rear cover 662 in the housing 1.

[0310] See Figures 93-95 The connection structure includes a mounting part 664 disposed on the main body 661 and a fixing part 665 disposed on the rear cover 662, with the mounting part 664 and the fixing part 665 disposed opposite to each other. Specifically, the mounting part 664 is located in an opening 666 on one side of the main body 661, and the fixing part 665 is located at an edge 669 on one side of the rear cover 662. The mounting part 664 is rotatably connected to the fixing part 665 within the opening 666 via a pivot pin 663. This connection structure is simple in structure and convenient to operate.

[0311] See Figures 92-95 The mounting part 664 includes two mounting holes 667, and the fixing part 665 includes two mounting holes 670. The two mounting holes 667 and the two mounting holes 670 on the fixing part 665 are respectively provided. The mounting part 664 has a pin receiving groove 668. When installing the body 661 and the rear cover 662, the pin 663 only needs to be pre-placed in the pin receiving groove 668 and then fixed to the mounting part 664 and the fixing part 665 to complete the installation of the body 661 and the rear cover 662. In other embodiments of this application, the pin receiving groove 668 may also be located on the fixing part 665.

[0312] See Figures 92-95 The pin receiving groove 668 is located between two mounting holes 667. The mounting holes 667 and the pin receiving groove 668 are connected to each other and are located on the same straight line. The length of the pin receiving groove 668 is greater than the length of the pin 663, so that the pin 663 can slide along the pin receiving groove 668 and pass through the mounting holes 667 and 670.

[0313] See Figures 92-95The length of the pin receiving groove 668 is slightly greater than twice the length of the pin 663. This allows two pins to be placed in the pin receiving groove 668 simultaneously. In other embodiments of this application, the pin receiving groove 668 may also be located on both sides of the mounting hole 667. The mounting part 664 and the fixing part 665 may also be arranged alternately.

[0314] See Figure 96 The axle pin 663 includes a body part 671, a head 672 located at one end of the body part 671 and a tail part 673 at the other end. The body part 671, the head 672 and the tail 673 can be integrally molded, which is not limited here.

[0315] See Figure 96 An opening 674 is provided on the pivot pin 663, extending from the middle of the body portion 671 to the tail portion 673. The tail portion 673 is conical and made of an elastic material, with its diameter at the end near the body portion 671 being larger than that at the other end. The opening 674 can open and close according to the force applied to the tail portion 673, undergoing elastic deformation and thus changing the diameter of the tail portion 673. The diameters of both the head portion 672 and the tail portion 673 are larger than the diameter of the body portion 671.

[0316] After installation, mounting holes 667 and 670 can be engaged between the head 672 and the tail 673. Simultaneously, the diameter of the pin receiving groove 668 is not less than the diameter of the head 672 and the tail 673, thereby preventing the pin 663 from sliding out of the pin receiving groove 668 during sliding along it. The diameters of mounting holes 670 and 667 are smaller than the diameter of the tail 673. The diameters of mounting holes 670 and 667 are larger than the diameter of the body 671.

[0317] See Figures 92-96 In one embodiment of the present invention, the specific installation steps of the body 661 and the back cover 662 are as follows:

[0318] Step 1: Place the shaft pin 663 in the shaft pin receiving groove 668 beforehand, and align the mounting hole 667 on the body 661 with the mounting hole 670 on the back cover 662.

[0319] Step 2: Push the pin 663 into the mounting hole 667 and mounting hole 670 along the pin receiving groove 668; at this time, the tail 673 of the pin 663 is squeezed by the mounting hole 667 and mounting hole 670, and the opening 674 closes, so that the tail 673 and the body 671 pass through the mounting hole 667 and mounting hole 670 in sequence.

[0320] Step 3: Push the tail 673 completely out of the mounting holes 667 and 670; at this time, the tail 673 of the shaft pin 663 is not squeezed by the mounting holes 667 and 670, and the opening 674 is open; the tail 673 is exposed in the mounting hole 670, the body 671 is accommodated in the mounting holes 667 and 670, and the head 672 is exposed in the mounting hole 667 and accommodated in the shaft pin receiving groove 668, thereby completing the installation of one side of the shaft pin 663.

[0321] Step 4: Repeat the above steps to install the other side of the shaft pin 663 until all installation work is completed.

[0322] This invention provides a connection structure including a mounting part 664 and a fixing part 665 disposed opposite to the mounting part 664. The mounting part 664 is connected to the fixing part 665 via a pin 663. This invention achieves installation by creating a pin receiving groove 668 on the mounting part 664, with the pin 663 pre-placed within the groove. This simplifies the installation process by requiring only the pin 663 to be fixed along the pin receiving groove 668 to both the mounting part 664 and the fixing part 665. The structure is simple and the operation is convenient.

[0323] See Figures 97-101 A lifting detection device 267 for a lawnmower is provided for detecting the lifting displacement of the lawnmower body 265 relative to the lawnmower chassis 266. The body 265 is located directly above the chassis 266 and can be lifted upwards, thus displacing itself vertically relative to the chassis 266.

[0324] See Figure 97 The lawnmower's lifting detection device 267 includes a vibration damper 261 connected to the main body 265, a sliding member 262 connected to the vibration damper 261, a metal plate 278 located at the bottom of the sliding member 262, a sensor 281 located on a PCB board inside the chassis 266, and a connector 268 connecting the main body 265 and the vibration damper 261. Through the connection of the connector 268, the vibration damper 261, the sliding member 262, and the metal plate 278 move upwards along with the main body 265.

[0325] See Figure 98 The metal plate 278 can be snapped or fixed to the bottom of the sliding member 262 by screws; the sensor 281 is used to detect the vertical distance D between the chassis 266 and the metal plate 278. When the body 265 is lifted relative to the chassis 266, the metal plate 278 moves upward accordingly. When the vertical distance between the metal plate 278 and the chassis 266 exceeds a preset value, the sensor 281 will send a trigger signal to the lawnmower's control device (not shown) to control the lawnmower to stop working and prevent the lawnmower from injuring the operator.

[0326] See Figure 98The vibration damper 261 is made of rubber. The vibration damper 261 includes a first connecting end 269 facing the body 265 and a second connecting end 270 facing the sliding member 262. The connector 268 has a receiving groove 285 with an opening facing the vibration damper 261 for receiving the first connecting end 269. The connection method between the connector 268 and the vibration damper 261 is not limited here; it can be connected by bolts, clips, or other commonly used connection methods, as long as the connection is secure.

[0327] See Figure 98 The sliding member 262 is securely connected to the shock absorber 261, meaning that the sliding member 262 and the shock absorber 261 move in the same direction. The sliding member 262 is made of plastic. The sliding member 262 includes a connecting portion 276 extending vertically and a fixing portion 277 perpendicular to the connecting portion 276. The connecting portion 276 is connected to the second connecting end 270 of the shock absorber 261. The fixing portion 277 is located at the bottom and protrudes peripherally relative to the connecting portion 276, forming an enlarged end. A metal plate 278 is fixed to the bottom surface of the fixing portion 277.

[0328] See Figures 98-99 The lawnmower's lifting detection device 267 also includes a connecting plate 274 fixed to the chassis 266. The connecting plate 274 includes a mounting plate 283 with a through hole, a sleeve 284 fixed within the through hole, and a sealing ring 275 located between the mounting plate 283 and the sleeve 284. The connecting portion 276 of the sliding member 262 passes upward through the sleeve 284 and is slidably disposed. The mounting plate 283 is fixed to the chassis 266 by a fastening device 273. The fastening device 273 is a screw or other commonly used connecting device.

[0329] See Figure 98 The lawnmower's lifting detection device 267 also includes a first spring 264 and a second spring 271. The first spring 264 is sleeved between the sleeve 284 and the fixed portion 277 of the sliding member 262, and is sleeved on the outer periphery of the connecting portion 276 of the sliding member 262. Since the sleeve 284 is fixed, the first spring 264 is compressed when the sliding member 262 moves upward with the body 265.

[0330] See Figure 98A second spring 271 is disposed between the shock absorber 261 and the sliding member 262. Both the shock absorber 261 and the sliding member 262 are made of plastic. The upper end of the second spring 271 is threadedly connected to the lower end of the shock absorber 261, and the lower end of the second spring 271 is threadedly connected to the top end of the connecting portion 276 of the sliding member 262. The shock absorber 261 provides a stable zero position by using the second spring 271, which simplifies the installation of the main body 265. Because the second spring 271 is fixed by the shock absorber 261 and the sliding member 262 in the initial position, it is not easily deformed.

[0331] See Figures 98-99 The plane on which the lawnmower collides with an obstacle is defined as the collision plane. When the lawnmower robot experiences a horizontal collision, the deflecting force of the second spring 271 absorbs the horizontal motion. With this configuration, when the lawnmower collides with an obstacle, such as a tree, the shock absorber 261 can reduce the vertical displacement caused by the displacement of the body 265 relative to the chassis 266 on the collision plane. This ensures that the lawnmower body 265 does not move upwards due to the collision with the obstacle, avoiding the situation where the lawnmower stops working incorrectly due to vertical displacement caused by the collision with the obstacle. In other words, the shock absorber 261 allows the lawnmower robot body 265 to undergo displacement relative to the chassis 266 limited to the vertical direction during a collision. This collision plane is approximately parallel to the plane to be mowed, i.e., approximately horizontal.

[0332] See Figures 98-99 When the lawnmower is in normal working condition, the first spring 264 is in a freely extended state. The sliding member 262 needs to overcome the elastic force of the first spring 264 to move towards the body 265, that is, away from the chassis 266. With this configuration, when the lawnmower experiences a slight collision or bump (when the lawnmower passes over a ramp, rocks, or other obstacles), the force on the sliding member 262 is less than the elastic force of the first spring 264. Therefore, the sliding member 262 will not move in the vertical direction, avoiding the upward movement of the sliding member 262 due to slight bumps, which could cause the sensor 281 to malfunction and stop the lawnmower from working, thus improving the working stability of the lawnmower.

[0333] See Figures 98-99 The lawnmower's lifting detection device 267 also includes a protective cover 272 surrounding the vibration damper 261. In this embodiment, the protective cover 272 is a bellows. One end of the bellows 13 is connected to the vibration damper 261, and the other end is connected to the mounting plate 283 of the connecting plate 274. This arrangement prevents the vibration damper 261 from being contaminated or damaged, extending its service life. The metal plate 278 is made of aluminum. The sensor 281 is a Hall sensor, an inductive sensor, or a magnetic sensor.

[0334] See Figure 101 The chassis 266 includes a lower base 282 and an upper base 279. The sensor 281 is mounted on the lower base 282 and is in close contact with the bottom surface of the upper base 279. The connecting plate 274 is fixed to the upper base 279 by a fastening device 273. The upper base 279 is also provided with a receiving cavity 280 that accommodates and supports the bottom of the sliding member 262. A metal plate 278 presses against the bottom surface of the receiving cavity 280.

[0335] See Figure 100 The following describes the working process of the lawnmower lifting detection device 267: When the lawnmower is in normal working condition, the first spring 264 is in a naturally extended state, and the metal plate 278 is close to the sensor 281; when the lawnmower is lifted, the body 265 moves upward, causing the shock absorber 261 and the sliding component 262 to move upward relative to the chassis 266, as shown below. Figure 101 As shown, at this time, the first spring 264 is in a compressed state, the metal plate 278 located at the bottom of the sliding member 262 moves upward, and the sensor 281 detects the distance D between the metal plate 278 and the sensor 281; when the distance D reaches the preset value, the sensor 281 sends a trigger signal to the control device of the lawnmower to control the lawnmower blades to stop rotating and prevent the operator from being injured.

[0336] When the lawnmower only collides with an obstacle rather than being lifted (e.g., when it hits a tree), the shock absorber 261, along with the first spring 264 and the second spring 271, can dampen the vibration, preventing the sliding member 262 from moving upwards. That is, the metal plate 278 remains close to the sensor 281, avoiding the situation where slight bumps cause the sliding member 262 to move upwards, leading to sensor 281 malfunction and the lawnmower stopping, thus improving the lawnmower's operational stability.

[0337] Therefore, the lifting detection device 267 of the lawnmower disclosed herein incorporates a sensor 281 housed within the chassis 266. The sensor 281 detects the distance between the metal plate 278 mounted on the sliding member 262 and the chassis 266 to determine the distance between the lawnmower body 265 and the chassis 266. This lifting detection device 267 has a simple structure and saves space; it eliminates the need for holes in the chassis 266 for the wires connecting the lifting detection device to the chassis to pass through, and it offers good waterproofing. Furthermore, the vibration damper 261 reduces the likelihood of the lawnmower stopping due to vertical displacement caused by collisions with obstacles, thus improving the lawnmower's operational stability.

[0338] See Figure 102This disclosure discloses a lawnmower that can be an intelligent lawnmower and can operate automatically on grass. The lawnmower includes a body 286, a housing 287 covering the body 286, and a suspension device 288 movably connecting the body 286 and the housing 287.

[0339] See Figure 102 The body 286 is equipped with wheels (not shown) for driving the lawnmower, a drive motor (not shown) for driving the wheels, a cutting assembly (not shown) for cutting grass, a control assembly (not shown) for controlling the operation of the drive motor and the cutting assembly, and a battery pack for providing power to the lawnmower. Since the structures of the wheels, drive motor, cutting assembly, control assembly, and battery pack are all existing technologies, these structures will not be described in detail.

[0340] See Figure 102 The outer casing 287 covers the outside of the body 286, serving both to protect the body 286 and the operator. For example, it provides dust and water protection, protecting the drive motor, cutting components, control components, and battery pack, extending the lifespan of each structure. Simultaneously, it prevents accidents during lawnmower use, improving the lawnmower's safety.

[0341] See Figures 102-104 The suspension device 288 includes a first support column 294 connected to the outer shell 287, a second support column 295 connected to the fuselage 286, and a flexible connector 299 connecting the first support column 294 and the second support column 295. Specifically, one end of the flexible connector 299 is connected to the first support column 294 and the other end is connected to the second support column 295, so that the outer shell 287 can move relative to the fuselage 286 in a direction perpendicular to the fuselage 286 and / or in a horizontal direction.

[0342] See Figures 102-104 In the direction perpendicular to the fuselage 286, the first support column 294 and the second support column 295 are arranged opposite each other, with the first support column 294 located above the second support column 295. It can be understood that the horizontal direction is parallel to the ground, and the direction perpendicular to the fuselage 286 is perpendicular to the ground, i.e., the vertical direction.

[0343] See Figure 102 , Figures 105-107The first support column 294 is provided with a connecting portion 302, and the outer shell 287 is provided with a corresponding receiving portion 90, in which the connecting portion 302 is received. Specifically, in this embodiment, the first support column 294 is generally cylindrical, and the connecting portion 302 is located at the top of the first support column 294 and is spherical. A rubber cap 291 is provided inside the outer shell 287, and the rubber cap 291 is fixedly connected to the outer shell 287. The receiving portion 90 is a spherical cavity formed inside the rubber cap 291, and the spherical connecting portion 302 is received within the spherical cavity, thereby achieving a fixed connection between the first support column 294 and the outer shell 287. Thus, when the outer shell 287 is moved by an external force, it will drive the first support column 294 to move. Of course, in other embodiments, the first support column 294 and the outer shell 287 can also be connected by other structures, as long as a fixed connection between the first support column 294 and the outer shell 287 can be achieved, and there is no limitation on this.

[0344] See Figure 106 The first support column 294 is also provided with a groove 303 that surrounds it along its axial direction, and the groove 303 is located approximately at the middle position of the first support column 294.

[0345] See Figure 106 The flexible connector 299 includes a spring. One end of the first support column 294 is provided with a first thread 305 that matches the spring, and one end of the second support column 295 is also provided with a second thread 306 that matches the spring, so that one end of the spring is threadedly connected to the first support column 294 and the other end is threadedly connected to the second support column 295. Specifically, in the vertical direction, the bottom of the first support column 294 is provided with the first thread 305, and the top of the second support column 295 is provided with the second thread 306.

[0346] See Figure 107 The pitch H of the first thread 305 gradually increases from bottom to top. With this configuration, when the spring is screwed into the first support post 294, the spring gradually tensions, increasing the pressure between the spring and the first support post 294, thereby increasing the friction between them and making the spring less likely to dislodge. Similarly, the pitch of the second thread 306 is correspondingly set to gradually increase from top to bottom.

[0347] See Figure 106 The flexible connector 299 also includes a rope (not shown), with spherical fasteners at both ends. Spherical grooves 304 are respectively provided on the first support column 294 and the second support column 295 to accommodate the spherical fasteners. Figure 106As shown, the spherical groove 304 on the first support column 294 is recessed inward from the inner sidewall of the groove 303; the spherical groove 304 on the second support column 295 is recessed on the second thread 306 and is located near the top of the second support column 295.

[0348] See Figure 106 The flexible connector 299 is configured to include both a spring and a rope, with the rope being longer than the spring. This configuration ensures that the lawnmower stops working when lifted even if the spring fails. Of course, in some embodiments, the flexible connector 299 can have other structures, as long as the effect of stopping the lawnmower when lifted is achieved; this is not a limitation.

[0349] See Figures 102-104 , Figure 108 and Figure 109 The suspension device 288 further includes a fixing frame 296 fixedly connected to the fuselage 286. The fixing frame 296 has a through hole 311, and in the vertical direction, the top of the second support column 295 passes through the fixing frame 296 through the through hole 311. Specifically, in this disclosure, the fixing frame 296 has a cylindrical structure, and the through hole 311 is located at the center of the fixing frame 296.

[0350] See Figure 108 The fixing bracket 296 includes a first fixing part 307 and a second fixing part 308, wherein the diameter of the first fixing part 307 is smaller than the diameter of the second fixing part 308, and a through hole 311 is provided vertically through the first fixing part 307 and the second fixing part 308. The through hole 311 includes a first through hole 315 formed on the first fixing part 307 and a second through hole 313 formed on the second fixing part 308, wherein the diameter of the first through hole 315 is smaller than the diameter of the second through hole 313.

[0351] See Figure 108 The top of the first fixing part 307 is slightly recessed to accommodate one end of the spring 299 and to limit the movement of that end. The bottom of the second fixing part 308 is recessed with an annular groove 314, which is located around the second through hole 313 to accommodate a sealing ring 301 (also called a gasket) to enhance the waterproof performance of the body 286.

[0352] See Figure 108Since the fixing bracket 296 is fixed on the body 286, an annular protrusion (unlabeled) protrudes from the body 286 at the position corresponding to the annular groove 314. Through the cooperation of the annular protrusion, the annular groove 314 and the sealing ring 301, the fixing bracket 296 can not only be tightly connected to the body 286, but also has good waterproof performance.

[0353] See Figure 109 The mounting bracket 296 is fixed to the body 286 by screws 292. The second fixing part 308 is provided with two lugs 309, each lug 309 having an opening 312. The two lugs 309 are arranged opposite each other so that the screws 292 pass through the openings 312 to fix the mounting bracket 296 to the body 286. Of course, in other embodiments, the mounting bracket 296 can also be installed and fixed to the body 286 by other means, such as snap-fit, hard interference, etc., and there is no limitation here.

[0354] Please continue to participate. Figures 102 to 104 As shown, in the vertical direction, a fixing head 298 is provided at the bottom of the second support column 295, and a metal plate 300 is mounted on the fixing head 298. A displacement sensor 289 is provided inside the body 286, located below the metal plate 300, for detecting the displacement of the second support column 295. The suspension device 288 also includes a compression spring 293 disposed between the fixing frame 296 and the fixing head 298. One end of the compression spring 293 is received in the second through hole 313 and abuts against the inner wall surface of the second fixing part 308, and the other end abuts against the upper surface of the fixing head 298.

[0355] Please continue to participate. Figures 102 to 104 As shown, when the lawnmower is lifted for some reason, the outer casing 287 will cause the first support column 294, the flexible connector 299, and the second support column 295 to move upward. At this time, the compression spring 293 is compressed. If the displacement sensor 289 detects that the second support column 295 has been displaced and the displacement exceeds a set value, it sends a sensing signal to the control component, which then sends a control signal to the cutting component to stop the lawnmower from working. When the external force disappears, the restoring force of the compression spring 293 will cause the second support column 295, the flexible connector 299, and the first support column 294 to return to their initial positions, at which point the lawnmower can continue to work.

[0356] Please continue to participate. Figures 102 to 104The suspension device 288 shown also includes a dustproof rubber sleeve 297 covering the outside of the first support column 294, the flexible connector 299, and the second support column 295. One open end of the dustproof rubber sleeve 297 is contained within the groove 303, and the other open end is contained within the fixing frame 296. Specifically, a limiting space 310 is provided between the first fixing part 307 and the second fixing part 308 of the fixing frame 296. The dustproof rubber sleeve 297 is generally columnar, and in the vertical direction, the top open end of the dustproof rubber sleeve 297 is contained within the groove 303, and the bottom open end is contained within the limiting space 310, thereby protecting the flexible connector 299, the connection position between the flexible connector 299 and the first support column 294, and the connection position between the flexible connector 299 and the second support column 295.

[0357] Please continue to participate. Figures 102 to 104 As shown, four suspension devices 288 are provided, and they are respectively located at the four corners of the fuselage 286. Of course, in other embodiments, the number and location of the suspension devices 288 can be changed, and there is no limitation here.

[0358] See Figure 102 When the lawnmower of this disclosure is operating normally, the outer casing 287 cannot move. When the lawnmower collides with an obstacle during operation, the outer casing 287 stops, while the body 286 continues to move forward, causing relative displacement between the body 286 and the outer casing 287. At this time, the collision sensor (not shown) on the body 286 transmits the collision signal to the control component, which then controls the lawnmower to move backward. When a collision occurs, since the rubber cap 291 is fixed to the outer casing 287, the rubber cap 291 will cause the first support column 294 to deflect; since the second support column 295 is housed in the cylindrical hole of the body 286 and has a small horizontal degree of freedom, the rubber cap 291 will also simultaneously cause the spring 299 to deflect.

[0359] See Figure 102 When the lawnmower is involved in a collision, the spring 299 will not return to its original state immediately, but will continue to vibrate. At this time, both the spring 299 and the rubber cap 291 will deform. Since the rubber cap 291 can act as a damper and absorb vibration energy, it can be used to absorb some of the vibration energy to prevent the body 286 from cracking, thereby greatly extending the service life of the lawnmower and reducing the operating cost.

[0360] Therefore, the lawnmower of this disclosure configures the suspension device 288 to include a first support column 294, a second support column 295, and a flexible connector 299 connecting the first support column 294 and the second support column 295. The first support column 294 is connected to the outer shell 287, and the second support column 295 is connected to the body 286. This prevents the outer shell 287 from moving during normal operation, while allowing it to move flexibly relative to the body 286 in a direction perpendicular to the body 286 and / or in a horizontal direction when it encounters an obstacle.

[0361] See Figures 111-115 The present invention includes a collision sensor 677 for detecting collisions, the collision sensor 677 having a magnet fixing structure 674, see [link to documentation]. Figure 115 The collision sensor 677 includes a magnet 675, a magnet fixing structure 674, and a Hall sensor 678 corresponding to the magnet fixing structure 674. The magnet fixing structure 674 and the Hall sensor 678 are respectively fixedly mounted on the housing 1 and the lawnmower body (including the cutter assembly 616, the walking assembly 8, and the battery pack assembly). The lawnmower body is provided with a circuit board 679, and the Hall sensor 678 is electrically connected to the circuit board 679. The Hall sensor 678 is correspondingly positioned directly below the magnet fixing structure 674.

[0362] See Figures 111-115 In one embodiment, only one set of Hall sensors 678 is provided, and the collision sensor 677 can only be used to detect whether a collision has occurred. In another embodiment of the invention, four sets of Hall sensors 678 are provided, respectively arranged in the front, back, left, and right directions directly below the magnet fixing structure 674, to detect the specific collision direction. Furthermore, more Hall sensors 678 can be provided, with a total of eight sets of Hall sensors 678 arranged in the front left, rear left, front right, and rear right directions in addition to the front, back, left, and right directions, to improve the accuracy of collision direction detection. In this embodiment, after detecting the collision direction, the lawnmower will control the walking component 8 to retreat along the collision direction to avoid subsequent possible collisions.

[0363] See Figures 111-113 In this invention, the collision sensor 677 may be provided in two sets, and the two sets of collision sensors 677 are respectively provided at the front end and the rear end of the lawnmower.

[0364] See Figures 112 to 115The magnet fixing structure 674 includes a first cavity and a second cavity. The first cavity extends vertically and is columnar, while the second cavity extends horizontally and is positioned above the first cavity. A columnar magnet 675 is disposed within the first cavity, and a metal sheet 676 is disposed within the second cavity for the magnet 675 to be attracted, thus fixing the magnet 675 within the first cavity. When the lawnmower encounters an obstacle or other object and collides with it, the magnet fixing structure 674 vibrates, causing the magnet 675 to displace within the first cavity. Based on the Hall effect, the Hall sensor 678 generates a corresponding Hall voltage, thereby determining that a collision has occurred. In other embodiments of the invention, the first cavity may also have other regular shapes, and the magnet 675 may be configured in a corresponding shape within the first cavity, including but not limited to cubes and other shapes, without limitation.

[0365] See Figure 115 The first cavity has a downward-facing opening for the magnet 675 and the metal sheet 676 to be attracted and fixed, so as to the metal sheet 676 disposed in the second cavity at the upper end of the first cavity. In one embodiment, the opening is circular, and the diameter of the opening is larger than the diameter of the magnet 675, so that the magnet 675 and the metal sheet 676 are magnetically connected. When the magnet 675 needs to be repaired, it can be detached from the opening by removing the metal sheet 676 from the second cavity. In other embodiments of the invention, the opening may also be formed on the side of the first cavity, and the magnet 675 can be inserted through the opening on the side. Of course, to prevent the magnet 675 from accidentally detaching from the first cavity, the magnet 675 may also be disposed in a closed manner in the first cavity, which is not limited here.

[0366] See Figure 115 The magnet 675 is a permanent magnet so that it can be continuously attracted to the metal sheet 676. In another embodiment of the invention, the magnet 675 can also be an electromagnet or an electro-permanent magnet. When the magnet 675 is an electromagnet, a blocking structure (not shown) is provided at the opening at the lower end of the first cavity to prevent the lawnmower from detaching the electromagnet after power is cut off. When the magnet 675 is an electro-permanent magnet, it can also be continuously attracted to the metal sheet 676, and the magnetic strength of the electro-permanent magnet can be controlled by adjusting the current.

[0367] See Figure 115The vertical distance between the magnet fixing structure 674 and the Hall sensor 678 is less than 10mm, that is, the vertical distance between the magnet fixing structure 674 and the Hall sensor 678 is less than 10mm. For example, the vertical distance between the magnet fixing structure 674 and the Hall sensor 678 is 1mm, which can be set to 5mm or 9mm. Of course, this distance can be adjusted according to specific circumstances. For example, when the magnet 675 has a large magnetism, the distance can be increased accordingly, and when the magnet 675 has a small magnetism, the distance can be decreased accordingly to ensure detection accuracy.

[0368] See Figures 111-115 The diameter of the first cavity is larger than the diameter of the magnet 675 to facilitate displacement of the magnet 675 within the first cavity. It is understood that the diameter of the first cavity should not be set too large to prevent the magnet 675 from deviating from its upright position after displacement, thereby reducing detection accuracy, and to prevent the magnet 675 from shaking or even detaching after an accidental violent collision. In this embodiment, the first cavity may also be provided with a reset structure (not shown) for resetting the magnet 675 after displacement. The reset structure includes, but is not limited to, the form of a spring, and can be specifically configured as needed, without limitation here.

[0369] See Figures 111-115 The first cavity and the second cavity are electrically connected, and correspondingly, the magnet 675 is magnetically connected to the metal sheet 676. In this embodiment, the metal sheet 676 can be fixedly disposed in the second cavity, in which case the magnet 675 will undergo relative displacement with the metal sheet 676 after the lawnmower collides with it; of course, the metal sheet 676 can also be movably disposed in the second cavity, in which case the second cavity is provided with a limiting structure to prevent the metal sheet 676 from detaching, and the magnet 675 will drive the metal sheet 676 to move synchronously after the lawnmower collides with it. In another embodiment of the present invention, the first cavity and the second cavity are not electrically connected, and correspondingly, the magnet 675 and the metal sheet 676 are magnetically attracted but not connected, and after the lawnmower collides with it, the magnet 675 moves along the bottom surface of the first cavity near the second cavity.

[0370] See Figures 111-115The collision sensor 677 may further include a reed switch (not shown) for detecting the relative movement of the housing 1 and the lawnmower body in the vertical direction. Specifically, when the magnet 675 moves vertically, the reed switch is controlled to open or close, thereby stopping the mowing and walking components 8 of the lawnmower in the event of disassembly or accidental damage to the housing 1, thus preventing injury. Of course, in other embodiments, the reed switch may include, but is not limited to, relays or inductive sensors, and is not limited here. The magnet fixing structure 674 provided by this invention facilitates installation and disassembly, reducing production costs.

[0371] See Figure 116 This disclosure provides an automated working device, which can be a smart lawnmower, a vacuum cleaner, etc. This embodiment uses a smart lawnmower as an example. The smart lawnmower mainly includes a housing 1 and a movable top cover 2. The housing 1 is equipped with wheels 9, and a control circuit is installed inside the housing 1. A control area 369 is located on the top of the housing 1. The movable top cover 2 is installed on top of the housing 1, and its outer contour is larger than that of the housing 1. It has an opening 20 to expose the control area 369, facilitating user operation of the smart lawnmower.

[0372] A collision detection device, such as a displacement sensor composed of a Hall sensor and a magnet, is also provided between the movable cover 2 and the housing 1. When a collision occurs and the movable cover 2 and the housing 1 move relative to each other, the change in the relative position of the magnet and the Hall sensor causes a change in the magnetic field. The Hall sensor senses the change in the magnetic field and outputs a signal to the control circuit to control the intelligent lawnmower to change its walking direction and avoid collisions.

[0373] This disclosure also provides a connecting device in which the movable cover 2 of the smart lawnmower is movably connected to the housing 1 via multiple control areas 368, allowing the movable cover 2 to be displaced relative to the housing 1. As one embodiment of this disclosure, there are three control areas 368, two located at the rear of the smart lawnmower and one at the front. The control areas 368 of this disclosure allow for easy removal of the cover while avoiding the problem of the cover easily falling off.

[0374] Please refer to Figure 117 As shown, the control area 368 of this disclosure includes a connecting rod 371 and a connecting seat. The connecting rod 371 is fixed to the housing 1, and the connecting seat is fixed to the movable upper cover 2. The connecting rod 371 has a connector 378, which is movably disposed within the connecting seat to movably connect the housing 1 and the movable upper cover 2. The connecting seat includes a mounting base 372, a locking member 373, and a base plate 374. The base plate 374 is located on the bottom side of the mounting base 372, and the locking member 373 is located between the mounting base 372 and the base plate 374.

[0375] Reference Figures 118-119 As shown, a cavity 379 is provided in the mounting base 372. The locking member 373 is received in the cavity 379, and its top is exposed for consumers to operate. The locking member 373 is provided with an annular cavity 380, and an internal thread 404 is provided on the inner wall surface of the annular cavity 380. The locking member 373 is further provided with a concave cavity 381 located in the annular cavity 380. The concave cavity 381 is jointly formed by a plurality of elastic connecting walls 385. The elastic connecting walls 385 have a certain elasticity and can deform appropriately to allow the connecting head 378 in the concave cavity 381 to脱离 the concave cavity 381. The connecting head 378 can be spherical, and the concave cavity 381 can be a spherical concave cavity.

[0376] See Figures 117-118 , the bottom plate 374 is fixed on the mounting base 372 and is provided with a convex column 386. An external thread 405 is provided on the outer side surface of the convex column 386, which can be threadedly connected with the internal thread 404 of the annular cavity 380. The convex column 386 is a hollow structure, and an adjustment cavity 388 that penetrates up and down is formed inside it. The locking member 373 and the bottom plate 374 are both assembled from the bottom side of the mounting base 372. After the locking member 373 and the bottom plate 374 are threadedly connected, they can be assembled to the mounting base 372 together.

[0377] After assembly, the annular cavity 380 of the locking member 373 is located in the cavity 379, the convex column 386 of the bottom plate 374 extends into the annular cavity 380, and its external thread 405 cooperates with the internal thread 404 of the annular cavity 380. The concave cavity 381 of the locking member 373 is located in the adjustment cavity 388 of the convex column 386. The connecting head 378 of the connecting rod 371 passes through the bottom plate 374 and is movably received in the concave cavity 381.

[0378] See Figures 117-118 , the bottom plate 374 is locked to the bottom side of the mounting base 372 by screws 375, and its position remains unchanged relative to the mounting base 372. The threaded connection between the locking member 373 and the bottom plate 374 enables the locking member 373 to move up and down while rotating, driving its elastic connecting walls 385 to move up and down in the adjustment cavity 388. The adjustment cavity 388 is generally cylindrical, and its inner wall is stepped, with a smaller diameter near the bottom.

[0379] Refer Figure 122 As shown, when the elastic connecting wall 385 is at a high position, there is a gap A between the inner wall surface of the adjustment cavity 388 and the outer side surface S1 of the elastic connecting wall 385, allowing the elastic connecting wall 385 to deform outward so that the connecting head 378 can脱离 the concave cavity 381, and then脱离 the movable upper cover 2, enabling the movable upper cover 2 and the housing 1 to be separated. When the elastic connecting wall 385 is at a low position, the inner wall surface of the adjustment cavity 388 restricts the outward deformation of the elastic connecting wall 385, thereby restricting the connecting head 378 in the concave cavity 381 and keeping the movable upper cover 2 and the housing 1 connected.

[0380] See Figures 118-119 The restriction can be that the inner wall of the adjustment cavity 388 abuts against the elastic connecting wall 385, or the inner wall of the adjustment cavity 388 is very close to the elastic connecting wall 385. Although the elastic connecting wall 385 can expand and deform slightly outward, its deformation is not enough to make the connector 378 disengage from the cavity 381.

[0381] See Figures 118-119 The locking element 373 is defined to have a release position and a locked position. When the locking element 373 is in the release position, the elastic connecting wall 385 can expand and deform outward, allowing the connector 378 to disengage from the cavity 381, and the connecting seat and connecting rod 371 can be separated. When the locking element 373 is in the locked position, the elastic connecting wall 385 is restricted by the inner wall surface of the adjusting cavity 388 to undergo sufficient outward expansion deformation, so that the connector 378 is confined within the cavity 381, maintaining the connection relationship between the connecting seat and the connecting rod 371. Therefore, the release position and the locked position of the locking element 373 can meet the different usage requirements of the control area 368.

[0382] See Figure 118 When the smart lawnmower with control area 368 is in normal use, locking part 373 is in the locked position. Since connector 378 is confined in cavity 381, even when the smart lawnmower is moved, lifting the movable cover 2 will not cause the movable cover 2 to detach from the housing 1. When the consumer needs to remove the movable cover 2 for cleaning or maintenance, the locking part 373 can be rotated to the release position, and the movable cover 2 can be lifted upwards to easily remove it. After cleaning or maintenance, the movable cover 2 is placed on the housing 1, connector 378 is inserted into cavity 381, and then the locking part 373 is rotated from the release position to the locked position. Then the smart lawnmower can continue to work normally.

[0383] See Figures 117-118 The base plate 374 cannot move up and down, while the locking element 373 can move up and down during rotation. As a simple alternative, the locking element 373 can also be set to not move up and down, and the base plate 374 can be moved up and down by rotating the locking element 373, while other structures remain unchanged. When the locking element 373 is in the released position, the base plate 374 is in a high position, and the connector 378 can disengage from the cavity 381; when the locking element 373 is in the locked position, the base plate 374 is in a low position, and the connector 378 is confined within the cavity 381.

[0384] See Figures 117-118When the locking member 373 is in the released position, the gap A between the inner wall of the adjustment cavity 388 and the outer surface S1 of the elastic connecting wall 385 allows the elastic connecting wall 385 to expand outward. Alternatively, gap A can be absent; that is, when the locking member 373 is in the released position, the elastic connecting wall 385 is outside the adjustment cavity 388, thus allowing the elastic connecting wall 385 to expand outward without restriction. This implementation requires that the threaded connection between the locking member 373 and the base plate 374 still provide sufficient vertical displacement.

[0385] refer to Figure 117 and combined Figures 120 to 125 The specific structure of the mounting base 372, the base plate 374, and the locking element 373 is described in detail below. The base plate 374 is fixed relative to the mounting base 372. The base plate 374 and the mounting base 372 are two parts assembled together. As a simple replacement, the base plate 374 can also be manufactured integrally with the mounting base 372 or manufactured separately and then riveted together as a single structure. The locking element 373 is movable relative to the mounting base 372, allowing it to rotate and move vertically. The following explanation uses the example of the base plate 374 and the mounting base 372 being separate.

[0386] Figure 120 and Figure 121 The figure shows a perspective view of the mounting base 372. The mounting base 372 includes a top wall 393 and an annular side wall 395 extending downwards from the center of the top wall 393. The annular side wall 395 and the top wall 393 together form the aforementioned cavity 379. A base plate 374 is mounted on the bottom surface of the annular side wall 395, and a locking member 373 is accommodated within the cavity 379. The top wall 393 is generally circular, with a through hole 394 at its center to partially expose the locking member 373. A pair of mounting posts 396 are also provided on the lower side of the top wall 393, located at opposite ends outside the cavity 379, for fixing screws 375 to mount the base plate 374 to the bottom surface of the mounting base 372. The annular side wall 395 also has several protruding ribs 397 connected to the top wall 393 to strengthen the annular side wall 395.

[0387] Figure 122 and Figure 123 This is a perspective view of the locking member 373, which includes a pillar 399 and an operating part 400 located at the top of the pillar 399. The pillar 399 is generally cylindrical with an open bottom. The operating part 400 is also cylindrical and is located at the center of the top surface of the pillar 399. The diameter of the operating part 400 is smaller than the diameter of the pillar 399.

[0388] Combination Figure 124As shown, the diameter of the through hole 394 in the top wall 393 of the mounting base 372 is larger than the diameter of the operating part 400, but smaller than the diameter of the column 399. Therefore, the operating part 400 can protrude into the through hole 394 and protrude from the mounting base 372. The movable top cover 2 also has a hole (unlabeled) to expose the operating part 400 for consumer operation. The column 399 is always confined below the through hole 394. The top of the operating part 400 also has a groove 401. When the operator needs to rotate the locking member 373, a screwdriver or other tool can be used to engage the locking member 373 by inserting it into the groove 401.

[0389] See Figures 122-123 The column 399 contains the aforementioned annular cavity 380 with the aforementioned internal thread 404. The column 399 also contains the aforementioned elastic connecting wall 385 and the aforementioned recessed cavity 381 formed by the aforementioned elastic connecting wall 385. The centerline of the recessed cavity 381 coincides with the centerline of the operating part 400, and the recessed cavity 381 will not undergo eccentric movement when the operating part 400 is rotated. In this embodiment, there are four elastic connecting walls 385, and there are gaps between adjacent elastic connecting walls 385, making the connecting walls 385 elastic and capable of outward deformation.

[0390] See Figures 121-122 The locking element 373 also includes a positioning element 402 located beside the column 399. The positioning element 402 is approximately arc-shaped, surrounding the column 399, and forms a gap with the column 399. One end of the positioning element 402 is connected to the column 399, therefore the positioning element 402 has a certain degree of elasticity and can deform appropriately. A protrusion 403 is provided on the outer surface of the positioning element 402. (Combined with...) Figure 124 As shown, the inner wall of cavity 379 is also provided with two vertically spaced positioning grooves 398.

[0391] When the locking member 373 rotates within the cavity 379, the positioning member 402 drives the protrusion 403 to rotate, engaging with the corresponding positioning groove 398 in the aforementioned release and locking positions, respectively. The engaging force of the positioning groove 398 of the positioning member 402 prevents the locking member 373 from rotating or shifting on its own without the consumer's operation. Simultaneously, it provides the consumer with a clear indication of whether the locking member 373 has rotated to the correct position during operation.

[0392] See Figure 122 The top surface of the top wall 393 has indicator marks 376 around the through hole 394 to further indicate to the consumer whether the locking member 373 has been rotated into place. The indicator marks 376 include "0" and "1", combined with... Figure 121 As shown, the top surface of the operating part 400 of the locking member 373 is provided with an arrow, which is used in conjunction with the indicator mark 376.

[0393] In this embodiment, an arrow pointing to "0" indicates that the locking element 373 is in the released position, and an arrow pointing to "1" indicates that the locking element 373 is in the locked position. To prevent accidental operation, a directional arrow 329 indicating the rotation direction of the locking element 373 can also be provided between "0" and "1". When the locking element 373 rotates to "0" or "1", the protrusion 403 engages with the positioning groove 398. As a simple alternative, "0" and "1" can also be represented by other text or graphics, such as "release" or "lock", "separate" or "connect", unlocking and de-locking icons, etc., without specific limitations.

[0394] Figure 124 This is a perspective view of the base plate 374. The base plate 374 has a bottom wall 406 and the aforementioned protruding post 386 extending upward from the middle of the bottom wall 406. The bottom wall 406 is generally rhomboid in shape, with mounting holes 407 at two opposite corners. Screws 375 pass through the mounting holes 407 and are fixed to the mounting posts 396 of the mounting base 372 to fix the base plate 374 to the mounting base 372.

[0395] Figure 125 The diagram shows a cross-sectional view of the base plate 374. The inner wall of the adjusting cavity 388 is provided with a step, so that the adjusting cavity 388 has different inner diameters at different height positions. The inner wall of the adjusting cavity 388 is divided into an upper inner wall 384 and a lower inner wall 391 by the step. The step is located between the upper inner wall 384 and is a chamfer.

[0396] See Figures 123-125 The outer surfaces of these resilient connecting walls 385 lie on a circle, the diameter of which is defined as the outer diameter of these resilient connecting walls 385. The inner diameter of the upper inner wall 384 is larger than the outer diameter of the resilient connecting wall 385, and the lower inner wall 391 is equal to the outer diameter of the resilient connecting wall 385. Note that "equal to" here means approximately equal to, that is, the dimensional difference between the inner diameter of the lower inner wall 391 and the outer diameter of the resilient connecting wall 385 is insufficient to allow the resilient connecting wall 385 to undergo sufficient deformation to allow the connector 378 to disengage from the cavity 381.

[0397] Therefore, when the elastic connecting wall 385 is aligned with the upper inner wall 384 and offset from the lower inner wall 391, the elastic connecting wall 385 can deform outward, corresponding to the release position of the aforementioned locking member 373; when the elastic connecting wall 385 is at least partially aligned with the lower inner wall 391, the elastic connecting wall 385 is restricted from deforming outward, corresponding to the locking position of the aforementioned locking member 373.

[0398] See Figure 125The adjusting cavity 388 is further provided with another ring of stop steps 392 below the lower inner wall 391. The inner diameter of the stop steps 392 is smaller than the outer diameter of the elastic connecting wall 385. When the locking member 373 is in the locked position, that is, when the elastic connecting wall 385 is in the low position, the bottom surface S2 of the elastic connecting wall 385 abuts against the stop steps 392, and the stop steps 392 provide a stopping function.

[0399] Back Figure 117 When the movable cover 2 is installed onto the main body 1, the operating part 400 of the locking member 373 is located within the through hole 394 of the mounting base 372, and the arrow on the operating part 400 points to "0" on the mounting base 372. At this time, the locking member 373 is in the released position. (See reference...) Figure 122 As shown, at this time, the connector 378 can be easily inserted into the cavity 381 formed by the elastic connecting wall 385, and the control area 368 is movably connected to the main body 1 and the movable upper cover 2. Then, by rotating the operating part 400 with a tool, the locking member is rotated until the arrow on the operating part 400 points to "1", indicating that the rotation is in place. The locking member 373 moves downwards to the locked position while rotating, as shown in the reference. Figure 123 As shown, the connector 378 is held in the cavity 381 at this time, which can prevent the movable cover 2 from easily detaching from the main body 1.

[0400] See Figures 116-118 When the intelligent lawnmower is in normal use, the locking part 373 is always in the locked position to prevent the movable cover 2 from detaching from the main body 1. When it is necessary to remove the movable cover 2 for cleaning or maintenance, the locking part 373 is rotated in the opposite direction to move it from the locked position to the released position, so that the connector 378 can be easily disengaged from the cavity 381, and then the movable cover 2 can be easily and conveniently removed.

[0401] Please see Figures 126 to 129 As shown, a switch 316 according to an embodiment of this disclosure includes a housing 1 and a pressing device disposed on the upper part of the housing 1. A magnet 319 is provided on the pressing device, and a reed switch 320 that senses the magnetic field of the magnet 319 is provided inside the housing 1. The switch 316 also includes a fixing part 322 fixed to the upper side of the housing 1. The pressing device is pivotally connected to the top of the fixing part 322 via a pivot shaft 321 and can rotate above the housing 1 about the pivot shaft 321. The fixing part 322 connects the housing 1 and the pressing device. The fixing part 322 can be separately provided and fixed to the housing 1, or it can be integrally formed with the housing 1. The positions of the reed switch 320 and the magnet 319 correspond to each other. The direction in which the magnet 319 and the reed switch 320 are arranged opposite each other is defined as a first direction. When the pressing device is activated / triggered, the distance between the magnet 319 and the reed switch 320 can be changed in the first direction to close / open the reed switch 320.

[0402] Please see Figure 127 and combined Figure 129 As shown, the pressing device includes a main body 323, which is generally horizontally plate-shaped. A connecting portion 325 extends from the middle of the main body 323 and connects to a pivot 321 to rotatably fix the pressing device to a fixing portion 322. The pressing device also includes a protrusion 324 extending from the main body 323 toward a reed switch 320. The end of the protrusion 324 near the reed switch 320 has a receiving groove (not labeled) that opens toward the reed switch 320 to receive a magnet 319. This receiving groove fixes the magnet 319 and exposes the side of the magnet 319 facing the reed switch 320.

[0403] See Figure 127 The main body 323 includes a first pressing part 332 and a second pressing part 333. For ease of description, let's refer to... Figure 112 For viewing angle, the two sides of the connecting part 325 are defined as the right side and the left side, respectively. The magnet 319 and the reed switch 320 are both located on the right side, the first pressing part 332 is located on the left side, and the second pressing part 333 is located on the right side. The protrusion 324 protrudes from the end of the second pressing part 333 toward the reed switch 320. The first pressing part 332 is positioned away from the magnet 319. Pressing the second pressing part 333 causes the main body 323 to rotate clockwise around the pivot axis 321, thereby reducing the distance between the magnet 319 and the reed switch 320. The reed switch 320 senses the magnetic field of the magnet 319, and the two reeds of the reed switch 320 come into contact, thus the reed switch 320 is in the conducting state. Pressing the first pressing part 332 causes the main body 323 to rotate counterclockwise around the pivot axis 321, thereby increasing the distance between the magnet 319 and the reed switch 320. The reed switch 320 no longer senses the magnetic field of the magnet 319, and the two reeds of the reed switch 320 return to their original non-contact state, thus the reed switch 320 is in the disconnected state.

[0404] See Figure 127 The pressing device also includes a first pressing part 330 extending downward from the end of the first pressing part 332 and a second pressing part 331 extending downward from the end of the second pressing part 333. The housing 1 is provided with a first mating surface 327 for the first pressing part 330 to press and a second mating surface 329 for the second pressing part 331 to press, which are used to limit the rotation range of the first pressing part 332 and the second pressing part 331.

[0405] See Figure 127 The pressing device also includes an abutment portion 334 that protrudes downward from the first pressing portion 332 near the connecting portion 325. In particular, the abutment portion 334 protrudes downward from the bottom side of the main body portion 323 and has an arc-shaped abutment surface. The fixing portion 322 also has an arc-shaped contact surface so that the abutment portion 334 and the fixing portion 322 abut against each other to limit the rotation range of the pressing device.

[0406] See Figure 127 The pressing device also includes a first switch cap 326 and a second switch cap 328 respectively disposed on the upper surfaces of the first pressing part 332 and the second pressing part 333. In this embodiment, the first switch cap 326 and the main body part 323, and the second switch cap 328 and the main body part 323 are detachably connected. In other embodiments, the first switch cap 326, the second switch cap 328, and the main body part 323 can be integrally formed.

[0407] See Figure 127 The switch 316 is installed on the lawnmower, which has a start / stop switch and a main switch. The start / stop switch is switch 316, or the main switch is switch 316, or both the start / stop switch and the main switch are switch 316. In this embodiment, the lawnmower is a robotic lawnmower.

[0408] See Figure 127 The working process of switch 316 is explained below: Pressing the first switch cap 326 causes the main body 323 to rotate counterclockwise around the pivot 321, moving the magnet 319 away from the reed switch 320. The reed switch 320 can no longer sense the magnetic field of the magnet 319, and the two reeds of the reed switch 320 return to their original non-contact state. The reed switch 320 is in the open state, thus disconnecting switch 316 and stopping the lawnmower. Pressing the second switch cap 328 causes the main body 323 to rotate clockwise around the pivot 321, moving the magnet 319 closer to the reed switch 320. The reed switch 320 senses the magnetic field of the magnet 319, and the two reeds of the reed switch 320 come into contact. The reed switch 320 is in the conductive state, thus closing switch 316 and starting the lawnmower.

[0409] See Figure 127 This is just an example of a robotic lawnmower. Switch 316 can be installed as an independent component on other garden tools or other control objects, especially as a control switch for products that require waterproofing. Any scheme that adopts the same or similar scheme as this embodiment is covered within the protection scope of this disclosure.

[0410] Therefore, the switch 316 of this disclosure has a reed switch 320 located inside the housing 1, and a magnet 319 located outside the housing 1. The closed / open state of the reed switch 320 is controlled by adjusting the distance between the magnet 319 and the reed switch 320, thereby controlling the closed / open state of the switch 316. This design eliminates the need for holes in the housing 1, reducing the risk of water ingress and extending the switch's lifespan. Furthermore, since the reed switch 320 is controlled by a magnetic field, it does not require an external power supply, saving energy. The lawnmower equipped with this switch 316 operates stably and has a long operating time.

[0411] refer to Figure 130 and Figure 134 As shown, the charging station system includes a charging station 335 and a canopy 336. The charging station 335 includes a base plate 338 laid on the ground and a docking post 339 located on one side of the base plate 338. A protruding charging seat 340 is provided on the docking post 339, which mates with the intelligent lawnmower to charge the battery pack inside the intelligent lawnmower. The canopy 336 includes a connecting seat 337 detachably mounted on the docking post 339 of the charging station 335 and a canopy 342 pivotally connected to the connecting seat 337. The projection of the canopy 336 onto the bottom surface substantially covers the base plate 338, effectively shielding and protecting the intelligent lawnmower, including providing shade, rain protection, and preventing external impacts. The canopy 336 of the charging station system disclosed in this invention is detachable and fixed; when repairs are needed, the canopy 336 can be removed for repairs, making operation more convenient.

[0412] Combination Figure 132 and Figure 133 As shown, the connecting seat 337 includes a connecting portion 350 that is engaged with the periphery of the docking pile 339 of the charging station 335, and a supporting portion 351 that extends laterally from the connecting portion 350. The supporting portion 351 extends laterally from the top of the connecting portion 350 toward the base plate 338, and is used to securely support the canopy 342 assembled on the connecting seat 337. The cross-section of the connecting portion 350 is approximately U-shaped, and it is arranged around the rear side and opposite sides of the docking pile 339.

[0413] The connecting part 350 also covers the top of the docking post 339. The bottom of the connecting part 350 is detachably installed to the side of the docking post 339 by screws (not shown). The support part 351 has an open-top storage space 352 for accommodating maintenance tools such as handles, screwdrivers, and screws for repairing the canopy 336 or charging station 335. The connecting seat 337 also has multiple protruding ribs 353 disposed within the storage space 352. The protruding ribs 353 divide the storage space 352 into multiple areas so that users can place tools of different types or sizes in different areas.

[0414] See Figure 132The canopy 342 is generally lid-shaped, including a top wall 356 and side walls 357 extending downwards from the top wall 356. It provides shade and rain protection for the intelligent lawnmower when it is parked at the charging station 335 for charging. The canopy 342 also has an upwardly raised protrusion 343 and a corresponding groove 363. The protrusion 343 is formed by the upward bulge of the top wall 356 of the canopy 342 corresponding to the storage space 352 of the connecting seat 337. The groove 363 is located below the protrusion 343 and directly above the storage space 352 of the connecting seat 337. The protrusion 343 strengthens the canopy 342, and the groove 363 increases the space of the storage space 352.

[0415] See Figure 132 The canopy 342 also has a transparent observation window 344 that snaps onto the top wall 356. The observation window 344 is located on the top wall 356 in front of the protrusion 343, allowing the user to observe the charging status of the smart lawnmower at the charging station 335. The observation window 344 has a cover-shaped body 360 and a snap-fit ​​portion 441 extending downwards from the periphery of the body 360. The top wall 356 of the canopy 342 has a through hole 358 at a position corresponding to the observation window 344. The side wall of the through hole 358 has a snap-fit ​​groove 401 that mates with the snap-fit ​​portion 441 of the observation window 344. In this embodiment, the observation window 344 is made of transparent material and fitted into the through hole 358 of the canopy 342. The observation window 344 is approximately rectangular, located in front of the protrusion 343, and offset from the support portion 351. The size of the observation window 344 should be larger than the display area on the smart lawnmower for easy observation.

[0416] refer to Figures 133 to 134 As shown, the canopy 342 is pivotally assembled onto the support 351 and can be opened or closed relative to the connecting seat 337. To prevent users from accidentally opening the canopy 342, the canopy 336 also includes an elastic fastener 345 that movably engages the canopy 342 with the connecting seat 337. The fastener 345 can be fixed to either the connecting seat 337 or the canopy 342, and is elastically fastened to the other. The fastener 345 requires the user to apply a certain amount of external force to open the canopy 342, which can prevent the canopy 342 from being blown over in strong winds, and can also improve the user's operating feel, providing a clear sense of engagement when closing the canopy 342, helping the operator to determine whether the canopy 342 is properly closed.

[0417] See Figures 132-133The fastening member 345 is a metal spring piece in the shape of an inverted "U". It includes a fixing piece 346 fixed to the cover 342 by screws 348 and two latching arms 347 extending downward from opposite ends of the fixing piece 346. The fixing piece 346 is fixed to a screw post 367 on the bottom surface of the cover 342 by screws 348. The fixing piece 346 is assembled at the bottom of the protrusion 343 of the cover 342. The fixing piece 346 is located at the end of the protrusion 343 of the cover 342 near the observation window 344. The support part 351 of the connecting seat 337 has a fastening part 354 protruding forward at the end away from the connecting part 350, which can cooperate with the latching arms 347 of the fastening member 345 to fasten the cover onto the connecting seat 337.

[0418] When the cover 342 is closed on the support 351, the latching part 354 of the support 351 of the connecting seat 337 is received within the space formed by the latching arm 347 of the fastener 345. When the user needs to open the storage space 352, they must overcome the latching force of the fastener 345 and then lift the cover 342 upwards. (See reference...) Figure 134 As shown, the canopy 342 is open, and the fastener 345 is retained on the fastening part 354, so as to clearly show the engagement method of the fastener 345 and the fastening part 354.

[0419] See Figures 131-133 The following describes the fit between the canopy 342 and the connecting seat 337. The rear edge of the canopy 342 has a notch 362 and two pivot portions 365 located on opposite sides of the notch 362. The pivot portions 365 protrude downwards from the canopy 342 and have pivot holes 364. Two pivots 349 pass through the two pivot holes 364 and are fixed to both sides of the connecting seat 337, thereby pivotally connecting the canopy 342 to the connecting seat 337. Figure 132 As shown, the pivot 349 has a structure similar to a thumbtack, with an elastic snap-fit ​​structure at the end. After being inserted into the corresponding hole (unlabeled) of the connector 337, it snaps into place with the edge of the hole. The connector 337 also has stop blocks 366 on both sides, which are used to abut the opened cover 342, limiting the angle at which the cover 342 is opened and preventing the cover 342 from overturning, thus avoiding inconvenience in use.

[0420] See Figures 131-133 The notch 362 of the canopy 342 is located in the area of ​​the aforementioned protrusion 343. The top of the connecting seat 337 is also provided with a protrusion 355. After the connecting seat 337 and the canopy 342 are assembled, the protrusion 355 is embedded in the notch 362, and the top surface of the protrusion 355 is coplanar with the top surface of the protrusion 343, which can improve the overall appearance of the canopy 336 and enhance the aesthetics of the product.

[0421] See Figures 131-133During assembly, first fix the fastener 345 to the canopy 342, then pivot the canopy 342 to the connecting seat 337 to form the roof 336. The fastener 345 fastens / engages the fastening part 354 of the connecting seat 337 to keep the canopy 342 in the closed state. Then fix the assembled roof 336 to the charging station 335, thus completing the installation of the charging station system with the roof 336.

[0422] See Figures 131-133 The canopy 336 of this disclosure can be sold separately as a spare part, and users can install it on existing charging stations after purchasing it. If the existing charging station already has a protective housing for the docking pile 339 installed, the housing can be removed first, and then the connector 337 can be detachably installed onto the docking pile 339, so that the canopy 336 can be assembled into the charging station 335 to form a charging station system. The canopy 336 of this disclosure is easy to disassemble and maintain, and can be adapted to existing charging stations, making it widely and flexibly applicable.

[0423] Figures 135-137 The present disclosure shows a safety switch 421 rotated to a first position, at which point the safety switch 421 is in a stopped state; Figures 138-139 The diagram illustrates the usage state of the safety switch 421 when it is rotated to the second position, at which point the safety switch 421 is in the activated state. Further, in this disclosure, the safety switch 421 is mounted on the housing 422 or chassis of a garden tool; wherein the garden tool can be a robotic lawnmower or any other garden tool to which the safety switch 421 can be applied; and the garden tool is driven by an engine (not shown), specifically, the engine can be an internal combustion engine or a drive engine; optionally, in this disclosure, the engine is an electric motor.

[0424] Please see Figure 135 The diagram shown is an exploded view of the safety switch 421 in its first position, wherein the safety switch 421 is mounted on the housing 422 of the garden tool. The safety switch 421 includes a first button 423 and a second button 438 disposed on the first button 423; the safety switch 421 can be used to start the engine's power unit (not shown) to provide power to the engine.

[0425] See Figure 135The safety switch 421 further includes a pivot 424 connected and mounted on the housing 422, and the first button 423 is pivotally connected to the pivot 424. The first button 423 includes a first portion 425 and a second portion 426, which are respectively disposed on both sides of the pivot 424; and the second button 438 is disposed on the second portion 426. Further, the first button 423 can rotate around the pivot 424 between a first position and a second position. When the end of the first portion 425 is close to the housing 422, the first button 423 is in the first position; when the end of the second portion 426 is close to the housing 422, the first button 423 is in the second position.

[0426] See Figure 135 The second button 438 includes a first sliding button 427 and a second sliding button 428; and when the safety switch 421 is installed on the horizontal plane 429 of the housing 422, the second sliding button 428 is located beside the first button 423, and the first sliding button 427 is located above the second sliding button 428. Furthermore, the first sliding button 427 and the second sliding button 428 are manufactured separately and then assembled together; the first sliding button 427 has a protrusion 439 protruding towards the second sliding button 428 (i.e., downwards); the second sliding button 428 has a cavity 430, and the protrusion 439 is received within the cavity 430 to connect the first sliding button 427 and the second sliding button 428. This arrangement facilitates the assembly and disassembly of the safety switch 421.

[0427] See Figure 135 The second button 438 is further provided with a biasing device 431; the biasing device 431 is positioned and mounted on the second sliding button 428 by a guide pin 440. Specifically, the guide pin 440 is disposed on the second sliding button 428 and extends in a direction generally parallel to the first upper surface 432 of the first sliding button 427. During the activation of the safety switch 421, the guide pin 440 can be used to fix and guide the biasing device 431 to ensure that the biasing device 431 is compressed and extended without deviating from its extension and retraction direction, which can also be described as the axial direction along the central axis formed by the center of the biasing device 431. Further, the biasing device 431 can be a helical spring or any other suitable spring device.

[0428] See Figure 135The first button 423 includes a first engaging portion 434 and a second engaging portion 435. The first engaging portion 434 covers the second engaging portion 435; the pivot 424 is disposed on the second engaging portion 435. Optionally, the pivot 424 passes through the second engaging portion 435. The second engaging portion 435 has a groove 436 at one end near the second sliding button 428, the groove 436 is open on the side facing the second sliding button 428, and the groove 436 has a limiting surface 16 facing the opening. The second sliding button 428 has a protrusion 20 received within the groove 436; when the safety switch 421 switches between a stopped and a started state, the protrusion 20 can slide along the groove 436; furthermore, the biasing device 431 and the guide pin 440 are fixedly received within the protrusion 20. Optionally, the biasing device 431 is located within the slide groove 436, and both ends of the biasing device 431 press against the limiting surface 16 and the second sliding button 428, respectively.

[0429] See Figure 135 The first button 423 has a longitudinally extending second upper surface 445, and the second button 438 is slidably disposed on the second upper surface 445 along the longitudinal direction. The second button 438 can slide towards two opposite outer boundaries of the housing 422 in the front-back direction. Further, the second button 438 also includes a pressing portion 441 extending towards the housing 422. Specifically, the pressing portion 441 is disposed at the end of the second sliding button 428 away from the first button 423; the housing 422 includes a supporting portion 442 extending towards the safety switch 421 and the second sliding button 428 (i.e., upward).

[0430] See Figure 135 and Figure 139 The first sliding button 427 includes a first protrusion 446 and a second protrusion 447 protruding toward the housing 422, and the first protrusion 446 and the second protrusion 447 are disposed on the third lower surface 448 of the first sliding button 427.

[0431] See Figure 135 , Figure 137 and Figure 139The second portion 426 of the first button 423 has a receiving chamber, and the first sliding button 427 of the second button 438 covers the receiving chamber. The protrusion 439 is inserted into the receiving chamber to connect with the second sliding button 428. The first button 423 has a first receiving portion 449 for receiving the first protrusion 446 and a second receiving portion 450 for receiving the second protrusion 447. Specifically, the first receiving portion 449 has a first wall portion 451 and a second wall portion 452 extending toward the first sliding button 427; the second receiving portion 450 has a third wall portion 453 and a fourth wall portion 454 extending toward the first sliding button 427.

[0432] Both the first receiving portion 449 and the second receiving portion 450 are U-shaped. The distance between the first wall portion 451 and the second wall portion 452, and the distance between the third wall portion 453 and the fourth wall portion 454, can be used to limit the movement or sliding distance of the second button 438 relative to the first button 423. Furthermore, the first receiving portion 449, the first wall portion 451, the second wall portion 452, and the first protrusion 446 are arranged in a maze-like manner; at the same time, the second receiving portion 450, the third wall portion 453, the fourth wall portion 454, and the second protrusion 447 are also arranged in a maze-like manner. This arrangement can effectively prevent garbage and dirt from entering the interior of the second button 438; on the other hand, it can prevent garbage from entering the usage area of ​​the biasing device 431, causing abnormal use of the second button 438.

[0433] See Figure 135 and Figure 137 The first button 423 includes a first part 425 and a second part 426, which are respectively disposed on both sides of the axis extending in the direction of the pivot 424, and the second button 438 is disposed on the second part 426.

[0434] Please see Figures 135-137As shown, when the first button 423 is in the first position, the position where the second button 438 is located is defined as the stop position, and when the first button 423 is in the second position, the position where the second button 438 is located is defined as the start position; when the first button 423 is in the first position, the rotation of the first button 423 is restricted and cannot rotate towards the second position; and at this time, the first part 425 of the first button 423 is close to the housing 422, and the end 443 of the pressing part 441 abuts against the abutting part 442 on the housing 422. In the present disclosure, the second button 438 is slidably connected to the second part 426, and the second button 438 can slide along the second upper surface 445 of the second part 426, so that the second button 438 can slide and switch between the stop position and the start position; further, when the second button 438 switches to the stop position, the engine is in a power-off state; when the second button 438 switches to the start position, the engine is in a power-on state.

[0435] Please refer to Figures 138-139 As shown, it is a schematic diagram of the first button 423 rotating to the second position. When the first button 423 rotates around the pivot 424 to the second position, the extending direction of the second upper surface 445 within the projection area of the safety switch 421 is substantially parallel to the extending direction of the housing 422; the end 443 of the pressing part 441 abuts against the housing 422, and at this time, the first side surface 455 of the pressing part 441 is disposed opposite to the second side surface 456 of the abutting part 442, and the first side surface 455 and the second side surface 456 are substantially parallel; further, when the safety switch 421 rotates to the second position, the restoring force of the biasing device 431 acts on the abutting part 442 through the pressing part 441, so that the safety switch 421 is positioned at the start position.

[0436] Refer to Figure 137 As shown, when the first button 423 is in the first position, the second sliding button 428 abuts against the second engaging part 435 through the buckle part 38, and makes the second button 438 in the stop position; and when the first button 423 is in the second position (such as Figure 137 ), the second button 438 moves towards the first button 423, compressing the biasing device 431, the restoring force of the biasing device 431 acts on the second button 438, and the pressing part 441 abuts against the abutting part 442, so that the second button 438 is in the start position.

[0437] See Figure 137When the first button 423 is rotated to the first position, that is, when the first part 425 of the first button 423 rotates about the pivot 424 and tilts against the housing 422, the safety switch 421 is in a deactivated state. When the safety switch 421 is in a deactivated state before activation, the safety switch 421 is in the initial position. Figures 133-135 At the first position shown, the second button 438 is in the stopped position.

[0438] See Figure 137 When activating the safety switch 421 of this disclosure, the safety switch 421 needs to be switched from the stop position to the start position. In this process, firstly, an external force is applied to the first button 423 in the first position, so that the first sliding button 427 slides toward the first part 425 of the first button 423 and compresses the biasing device 431, and the end 443 of the pressing part 441 disengages from the top of the abutting part 442. Further, an external force is applied to the second button 438, so that the second part 426 rotates toward the housing 422 about the pivot 424, until the stop part 458 of the second button 438 abuts against the housing 422, at which time the safety switch 421 reaches the start position.

[0439] Finally, when the external force applied to the second button 438 ceases, the biasing device 431 extends under its own restoring force, moving the second button 438 away from the first portion 425, and driving the first side 455 of the pressing portion 441 to abut against the second side 456 of the supporting portion 442. At this time, the safety switch 421 is in the activated state and can be used to activate the power unit of the electric motor and provide power to the electric motor.

[0440] See Figures 137-138 When the motor stops running, the first part 425 of the first button 423 is pushed to rotate around the pivot 424 toward the housing 422, the first side 455 separates from the second side 456, the biasing device 431 drives the second button 438 away from the first part 425, and finally, when the end 443 of the pressing part 441 abuts against the supporting part 442, the safety switch 421 is in the stop position and the motor stops working.

[0441] Therefore, the safety switch 421 of this disclosure, by setting a first button 423 and a second button 438, and by controlling the sliding of the second button 438 during use, further controls the rotation of the first button 423 and the second button 438 around the pivot 424, so that the safety switch 421 is in the activated state. This means that the safety switch 421 of this disclosure requires two different consecutive control actions to be activated. This design provides the safety switch 421 of this disclosure with good foolproof protection, preventing accidental activation of garden tools and ensuring better safety for garden tools using the safety switch 421 of this disclosure. The safety switch 421 of this disclosure is applicable to robotic lawnmowers, power lawnmowers, or any other garden tools that require the use of the safety switch 421.

[0442] This disclosure also provides a method for powering the engine of a garden tool, wherein the garden tool is equipped with the safety switch 421, wherein the first button 423 is rotatable between a first position and a second position with the pivot 424 as an axis; the second button 438 is slidable between the stop position and the start position, and further, the method of using the safety switch 421 specifically includes the following steps:

[0443] Step 1: Press the first portion of the first button of the safety switch close to the housing to rotate the first button to the first position, while the second button is in the stop position and abuts against the housing to restrict the first button from rotating toward the second position;

[0444] Step 2: Slide the second button to compress the biasing device and separate the second button from the housing;

[0445] Step 3: Press down the second button so that the first button rotates about the pivot from the first position to the second position, and the second button slides from the stop position to the start position under the elastic force of the biasing device;

[0446] Step 4: The safety switch is in the activated state, which can activate the power unit and start the engine.

[0447] See Figures 140-142 This invention provides a light guide component 690 for guiding light. In this application, the light guide component 690 is generally cylindrical and includes a light guide portion 683, a light emitting portion 680 and a light entering portion 691 respectively disposed at both ends of the light guide portion 683 in the extending direction.

[0448] See Figures 140-142The light-emitting part 680 is disposed at the front end of the light guide part 683 along the extension direction of the light guide part 683; the light-incident part 691 is disposed opposite to the light-emitting part 680 and located at the rear end of the extension direction of the light guide part 683; in one embodiment of this application, the light guide part 683, the light-emitting part 680 and the light-incident part 691 are integrally formed (such as an integral structure); of course, in other embodiments of this application, the light guide part 683, the light-emitting part 680 and the light-incident part 691 may also be disposed separately.

[0449] See Figures 140-142 The light guide portion 683 is further provided with a guide portion 688 and a latching portion 686 arranged along its extension direction, and the guide portion 688 and the latching portion 686 are offset circumferentially along the light guide portion 683. In this application, the guide portion 688 is used to guide the light guide component 690 to dock with other structures and prevent relative rotation between the light guide component 690 and other structures, thus ensuring the stability of the light guide component 690 when docking with other structures.

[0450] See Figures 140-142 The guide portion 688 is provided on the outer wall surface of the light guide portion 683 and extends outward along the radial direction of the light guide portion 683. Furthermore, the guide portion 688 is provided from the tail end of the light guide portion 683 along the extension direction of the light guide portion 683, and in the extension direction of the light guide portion 683, the end of the guide portion 688 is located below the light emitting portion 680.

[0451] See Figures 140-142 The guide portion 688 has a guide structure 687 at its extending end, and the guide structure 687 is formed by an inclined guide surface 685, so that the light guide component 690 can be easily and quickly connected with other structures. In one embodiment of this application, the guide portion 688 is generally rectangular, and the guide structure 687 is formed by three inclined guide surfaces 685, each of which is planar, so that the guide structure 687 is generally frustum-shaped. Of course, in other embodiments of this application, the inclined guide surface 685 may also be arc-shaped, so that the guide structure 687 is generally bullet-shaped. That is, the specific form of the guide structure 687 can be selected according to actual needs and is not limited here.

[0452] See Figures 140-142In one embodiment of this application, two guide portions 688 are provided simultaneously. The two guide portions 688 are respectively provided on both sides of the extension direction of the light guide portion 683, and are symmetrically arranged about the central axis of the light guide portion 683. Of course, in other embodiments of this application, one or more guide portions 688 may be provided. When multiple guide portions 688 are provided, the multiple guide portions 688 are evenly distributed on the outer peripheral wall of the light guide portion 683. That is, in this application, the number and position of the guide portions 688 can be selected according to actual needs, as long as it is ensured that the guide portions 688 can facilitate the docking of the light guide component 690 with other structures and prevent relative rotation between the light guide component 690 and other structures.

[0453] See Figures 140-142 The latching portion 686 is disposed near the tail of the light guide portion 683 to limit the displacement of the light guide component 690 in the connection direction when it is connected to other structures, and to prevent the light guide component 690 from detaching from other structures. In one embodiment of this application, a latching gap 689 is also provided between the latching portion 686 and the tail of the light guide portion 683. The latching gap 689 facilitates the docking of the light guide component 690 with other structures. Furthermore, the latching portion 686 also has an inclined guiding surface 686b and an abutting surface 686a disposed perpendicular to the extension direction. When the light guide component 690 is connected to other structures, the abutting surface 686a abuts against the other structures to fix the connection position of the light guide component 690 with the other structures.

[0454] See Figures 140-142 The light-emitting part 680 has a light-emitting surface 682 and a light-emitting baffle 681 surrounding the light-emitting surface 682. Specifically, the light-emitting part 680 is formed by recessing from the front end to the rear end of the light-guiding part 683, or the light-emitting part 680 is formed by the outer peripheral surface of the light-guiding part 683 extending in the extending direction toward the rear end away from the light-guiding part 683, so that the edge of the light-emitting baffle 681 is located above the light-emitting surface 682. In this application, the light-emitting surface 682 is horizontally arranged to realize the linear transmission of light. Furthermore, when the light-emitting surface 682 is set as a concave / convex surface, the light-emitting surface 682 can also be used to realize the convergence / diffusion of light to transmit the light to the position where light emission is required.

[0455] See Figure 141 The light-inlet portion 691 is grooved and recessed from the tail end to the front end of the light guide portion 683 for housing the light-emitting element. In this application, the light-emitting element can be an indicator light or an LED or other light-emitting device. Furthermore, the light guide portion 690 can conduct the light emitted by the light-emitting element through the light guide portion 683 and realize the output and transmission of light through the light-emitting portion 13.

[0456] See Figures 140-142The light guide component 690 also has a sealing member 684 disposed at the front end of the light guide section 683. The light guide section 683 is provided with a receiving groove 692 for accommodating the sealing member 684, and the receiving groove 692 is located on the periphery of the light emitting section 680. Specifically, both the sealing member 684 and the receiving groove 692 are arranged in a ring shape, and the receiving groove 692 is formed by recessing from the center line of the light emitting baffle 681 to the tail end of the light guide section 683. This arrangement facilitates the connection between the sealing member 684 and the light emitting section 680, and also improves the sealing performance when the light guide component 690 is connected to other structures. In one embodiment, the inner wall surface of the receiving groove 692 is sloped to further improve the sealing performance when the light guide component 690 is connected to other structures.

[0457] See Figures 140-142 The light guide component 690 effectively improves the stability of the connection between the light guide component 690 and other structures by setting a guide part 688 and a snap-fit ​​part 686 for positioning and connecting the light guide component 690 and other structures. At the same time, the setting of the sealing member 684 improves the sealing performance when the light guide component 690 is connected to other structures, thereby effectively preventing rainwater from entering other structures through the gap between the light guide component 690 and other structures when they are connected.

[0458] See Figure 143 The lawnmower provided by the present invention includes a first housing 641 and a second housing 642 that are engaged, a drive unit 695 and a power supply unit 693 housed between the first housing 641 and the second housing 642, and a working unit 694 for performing gardening tasks. The power supply unit 693 provides power to the drive unit 695, which drives the drive unit 695 to drive the working unit 694 to complete the corresponding gardening tasks.

[0459] See Figures 144-146 The first housing 641 is provided with a lamp slot 696, an indicator light 697 corresponding to the lamp slot 696, and the aforementioned light guide component 690 housed within the lamp slot 696. The light guide component 690 guides the light emitted by the indicator light 697 from inside the first housing 641 to the outside of the first housing 641. Furthermore, the lamp slot 696 has a guide groove 696a for holding the light guide component 690 and a holding groove 696b for positioning the light guide component 690 at its connection position with the lamp slot 696.

[0460] See Figures 144-146 The guide portion 688 of the light guide component 690 is housed in the guide groove 696a and can slide along the guide groove 696a to realize the docking between the light guide component 690 and the lamp groove 696. On the one hand, it facilitates the insertion of the light guide component 690 into the first housing 641; on the other hand, it prevents relative rotation between the light guide component 690 and the lamp groove 696, ensuring the stability of the connection between the light guide component 690 and the lamp groove 696.

[0461] See Figures 144-146 When the light guide component 690 slides into the lamp groove 696, the abutting surface 686a of the latching part 686 abuts against the retaining groove 696b to prevent the light guide component 690 from separating from the lamp groove 696. Furthermore, the guide part 688 is correspondingly provided with the guide groove 696a, and the latching part 686 is correspondingly provided with the retaining groove 696b. The guide part 688 is provided with a corresponding guide groove 696a and the latching part 686 is provided with a corresponding retaining groove 696b.

[0462] See Figures 144-146 Furthermore, the periphery of the light trough 696 is also provided with a support groove 696c to accommodate the light-emitting baffle 681, and the sealing member 684 is held between the light-emitting baffle 681 and the support groove 696c, and is housed between the support groove 696c and the receiving groove 692. This arrangement allows the sealing structure 684 to seal the connection gap between the light trough 696 and the light guide component 690, ensuring the sealing performance of the lawnmower.

[0463] See Figures 143-146 Indicator lights 697 are used for status indication. Multiple indicator lights 697 can be provided at the same time, and multiple indicator lights 697 can illuminate independently. Furthermore, the first housing 641 is also provided with a display panel 695 covering the light slot 696, and the display panel 695 is provided with display areas (not shown) that correspond one-to-one with the light slot 696 and indicator lights 697. With this configuration, the working status of the lawnmower can be judged by the on / off state of the corresponding indicator areas.

[0464] See Figures 143-146 The light guide component 690 of this application, by providing a guide portion 688 and a snap-fit ​​portion 686, allows the light guide component 690 to be securely connected to the first housing 641 of the lawnmower. The sealing member 684 ensures a tight connection between the light guide component 690 and the upper housing of the lawnmower, preventing rainwater from entering the lawnmower from the connection point between the light guide component 690 and the first housing 641. This effectively improves the waterproof performance and safety of the lawnmower using the light guide component 690 to guide the light of the indicator light 697.

[0465] See Figures 147-152The present invention also discloses a light guide component 700 for sealing an indicator light on a device and guiding the light emitted by the indicator light. The light guide component 700 is made of a light guide material; in one embodiment of this application, the light guide material can be PC material. The light guide component 700 includes a light-incident portion 701, a light-emitting portion 702 that cooperates with the indicator light, and a light guide portion 706 connecting the light-incident portion 701 and the light-emitting portion 702. In this embodiment, the light-incident portion 701, the light-emitting portion 702, and the light guide portion 706 are integrally formed; however, in other embodiments, the light-incident portion 701, the light-emitting portion 702, and the light guide portion 706 can also be configured as separate structures.

[0466] The top surface of the light guide 706 is higher than the top surface of the light emitting part 702, and the top surface of the light emitting part 702 extends to the top surface of the light guide 706, forming an upward slope. This design effectively prevents rainwater from entering the device housing along the light guide 700, thus effectively sealing the indicator light and preventing rainwater from entering the device housing from the lamp slot and damaging the internal components. In this embodiment, the top surface of the light input part 701 is higher than the top surface of the light guide 706, and the top surfaces of the light input part 701, the light guide 706, and the light emitting part 702 are coplanar. This design allows the light emitted by the indicator light to be extracted with maximum efficiency.

[0467] Of course, in other embodiments, the top surface of the light-incident portion 701 may also be configured to be lower than the top surface of the light-guiding portion 706. In this embodiment, the light-guiding component 700 is along the BB direction (e.g., Figure 147 The width and thickness along the AA direction of the light guide component 700 gradually increase from the light-incident portion 701 to the light-emitting portion 702. This configuration effectively increases the light-emitting area of ​​the light-emitting portion 702, making it easier for the user to observe the status of the indicator light. Of course, in other embodiments, the width along the BB direction and the thickness along the AA direction of the light guide component 700 can also be set to be constant.

[0468] See Figures 147-148 The end of the light-incident section 701 opposite to the light-guide section 706 cooperates with an indicator light to collect the light emitted by the indicator light. In one embodiment, a light-collecting cover (not shown) is also provided at the end of the light-incident section 701 opposite to the light-guide section 706 to improve the light-collecting efficiency of the light-incident section 701. The light-guide section 706 connects the light-incident section 701 and the light-emitting section 702 to guide the light collected by the light-incident section 701 to the light-emitting section 702. The light-guide section 706 is also provided with a mounting hole 707 to fix the light-guide component 700 to the housing of the device by screws, bolts, etc. The mounting hole 707 can be a through hole or a blind hole.

[0469] The light-emitting part 702 has a light-emitting surface 703 for guiding light. The side of the light-emitting surface 703 away from the light guide part 706 protrudes outward to form a convex surface. This arrangement allows the user to observe the light emitted from the light-emitting part 702 over a wider range, thus facilitating the user's observation of the indicator light status. The end of the light-emitting part 702 opposite to the light guide part 706 extends outward to form a waterproof cap 704 that mates with the device housing, preventing rainwater from entering the lamp slot on the device housing along the light guide part 700.

[0470] In this embodiment, the waterproof cap 704 and the light-emitting surface 703 are coplanar. However, in other embodiments, the waterproof cap 704 and the light-emitting surface 703 may not be coplanar. In other embodiments, a guide groove (not shown) may be provided on one side of the light-emitting part 702 to divert any small amount of rainwater that may be located between the top surface of the waterproof cap 704 and the light-emitting part 702 to the outside of the device housing. In one embodiment, a limiting block 705 that mates with the device housing is also provided on one side of the light-emitting part 702 to prevent the light guide component 700 from being over-inserted into the lamp slot on the device housing during installation, thereby damaging the indicator light. The bottom of the limiting block 705 is also provided with a positioning protrusion 708 that mates with the device housing for quick positioning during installation.

[0471] See Figures 147-148 The light guide component 700 of the present invention sets the top surface of the light guide part 706 to be higher than the top surface of the light emitting part 702, so that an upward slope is formed from the top surface of the light emitting part 702 to the top surface of the light guide part 706. This can effectively prevent rainwater from entering the device housing along the light guide component 700, thereby effectively sealing the indicator light and avoiding the problem of rainwater entering the device housing from the lamp slot.

[0472] See Figures 149-152 The present invention also discloses a charging device 709, including a base plate 710, a charging part 712 mounted on the base plate 710, an indicator light 722, a light guide component 700, and a boundary line (not shown).

[0473] See Figures 149-152 The base plate 710 is laid on the ground and has several fixing holes 711 for fixing it to the ground using screws, bolts, etc. The charging unit 712 is fixedly installed on the side edge of the base plate 710 and is approximately perpendicular to the base plate 710. The charging unit 712 includes a first side wall 713 facing the center of the base plate 710, a third side wall 718 opposite to the first side wall 713, and a second side wall 714 located between the first side wall 713 and the third side wall 718.

[0474] The first sidewall 713, the second sidewall 714, and the third sidewall 718 together form a receiving space to accommodate the electronic components of the charging device 709 and the indicator light 722. The first sidewall 713 is provided with a lamp groove 719 and a charging interface 720 that mates with the device to be charged. The lamp groove 719 is recessed inward from the first sidewall 713 and communicates with the indicator light 722, such that the indicator light 722 is located at the bottom of the lamp groove 719. A water inlet 721 is provided on the bottom wall of the lamp groove 719 to guide water located within the lamp groove 719 to the outside of the lamp groove 719.

[0475] Of course, it is understandable that the side walls and top walls of the lamp trough 719 can also be provided with water inlet holes as needed. The side edge of the lamp trough 719 is provided with a limiting groove 720 that cooperates with the limiting block 705 (e.g., Figure 152 As shown, the bottom wall of the limiting groove 720 cooperates with the positioning protrusion 708. A rain shelter 715 is also provided on the top of the charging part 712. The light guide component 700 is installed in the lamp groove 719 and cooperates with the indicator light 722 to guide the light emitted by the indicator light 722.

[0476] At this time, the top surface of the light guide 706 is higher than the top surface of the light emitting part 702, so that an upward slope is formed from the top surface of the light emitting part 702 to the top surface of the light guide 706, thereby effectively preventing rainwater from entering the lamp slot 719 and the charging part 712 along the light guide 700. The light emitting surface 703 is partially located on the first side wall 713 and partially located on the second side wall 714. This arrangement allows the user to observe the status of the indicator light 722 from a wider range.

[0477] Please see Figure 150 As shown, a fixing hole 716 communicating with the mounting hole 707 is provided at the intersection of the first sidewall 713 and the second sidewall 714, so that the screw 717 passes through the fixing hole 716 and the mounting hole 707, thereby fixing the light guide component 700 onto the charging part 712. In this embodiment, the waterproof cap 704 directly abuts against the first sidewall 713 and the second sidewall 714 and protrudes from the charging part 712. However, in other embodiments, the periphery of the lamp groove 719 may also be provided with a receiving groove (not shown) to accommodate the waterproof cap 704. The boundary line is electrically connected to the charging device 709, and the indicator light 722 is used to indicate whether the boundary line and the charging device 709 are properly connected. Of course, in other embodiments, the indicator light 722 can also be used to display other states, such as whether the device to be charged has finished charging.

[0478] See Figures 147-152 The present invention also discloses a charging system, including an electronic device (not shown) and a charging device 709 for charging the electronic device. The light guide component 700 of the present invention can seal the indicator light and guide the light emitted by the indicator light, thereby effectively preventing rainwater from entering the device housing from the light slot and damaging the components inside the housing.

[0479] In summary, the control components, such as but not limited to microcontrollers (MCUs) or processor modules, can control various mechanisms to perform different working processes through corresponding drive circuits. For example, the airtightness of the housing can be detected by the airtight filling nozzle on the housing, and then the air filter cover can be replaced to ensure that the air pressure balance inside the housing is maintained during the operation of the lawnmower, ensuring the normal working condition of the lawnmower. As another example, the height of the cutter head can be adjusted by the cutter head height adjustment component in the cutting mechanism, and then the prime mover can be controlled by the control component to rotate, thereby driving the cutter head to rotate and using the blades to perform the cutting action.

[0480] For example, during the operation or movement of the lawnmower, the relative displacement of the movable cover and the casing in the vertical direction is detected by the suspension lifting detection component in the detection mechanism. When the movable cover and the casing undergo relative displacement in the vertical direction, a change in current signal is generated and sent to the control module or its connected current sensor, thereby regulating the working state of the lawnmower (such as stopping the mowing action or stopping the movement). During the operation or movement of the lawnmower, the relative displacement of the movable cover and the casing in the horizontal direction is detected by the collision detection component in the detection mechanism. When the movable cover and the casing undergo relative displacement in the horizontal direction, a change in current signal is generated and sent to the control module or its connected current sensor, thereby regulating the working state of the lawnmower (such as stopping the mowing action or stopping the movement).

[0481] The suspension lifting detection component and the collision detection component are set up independently, respectively detecting the relative displacement of the movable top cover and the machine casing in the horizontal and vertical directions, which can effectively reduce false triggering. For example, removable and replaceable wheel cover trims on the wheels can solve the problem of changing the wheel color. In this case, the above processes can be implemented individually or in combination to enable the lawnmower to meet different functional or design requirements.

[0482] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A lawnmower characterised in that: The lawn mower comprises a housing, a charging circuit arranged in the housing, and an assembly arranged on the housing and electrically connected to the charging circuit. The assembly comprises a wheel assembly and a charging interface part electrically connected to the charging circuit. The wheel assembly and the charging interface part are integrated into one structure. The charging interface part is connected to the housing and comprises a charging mount and a charging interface arranged on the charging mount. The wheel assembly comprises a support wheel, a wheel shaft, and a support wheel mount. The support wheel mount and the charging mount are integrally formed. The lawn mower further comprises a driving wheel or a power supply assembly arranged on the housing. The housing comprises a lower housing and an upper housing movably connected to the lower housing. The upper and lower housings form a hollow cavity.

2. The lawnmower as claimed in claim 1, characterized in that The power supply assembly is at least partially arranged in the cavity.

3. The lawnmower as claimed in claim 2, characterized in that The housing is provided with a receiving part for accommodating the assembly.

4. The lawnmower as claimed in claim 1, characterized in that The receiving part is arranged on the front or bottom of the housing.

5. The mower of claim 1, wherein, The charging interface comprises charging terminals.

6. The mower of claim 1, wherein, The charging terminals comprise at least one pair of guide pieces.

7. The mower of claim 1, wherein, The charging interface part is provided with a fixing part fixed to the housing.

8. The lawnmower as claimed in claim 1, characterized in that The charging interface part and the housing are provided with wire passing parts.

9. The lawnmower of claim 8, wherein, The charging interface part further comprises a charging sealing part.

10. The lawnmower as claimed in claim 9, characterized in that The charging sealing part is provided with a wire passing hole.

11. The lawnmower as claimed in claim 1, characterized in that, The charging sealing part is a threaded structure.

12. The lawn mower of claim 1, wherein, The charging mount is provided with a wire positioning groove extending from the charging sealing part to the charging interface.

13. The lawn mower of claim 12, wherein, The support wheel mount is provided with a mounting hole extending from top to bottom.

14. The lawn mower of claim 13, wherein, The wheel shaft is fixed in the mounting hole.

15. A charging system for a lawnmower comprising a lawnmower and a charging station for charging the lawnmower, characterized in that: The support wheel comprises a first half wheel and a second half wheel. The first half wheel and the second half wheel are clamped together to form a receiving cavity for accommodating the wheel shaft. The wheel assembly further comprises a wheel shaft positioning assembly and a sealing assembly. The sealing assembly comprises a first sealing part and a second sealing part. The first half wheel and the wheel shaft form a first fitting gap. The first half wheel and the second half wheel form a second fitting gap. The first sealing part seals the first fitting gap. The second sealing part seals the second fitting gap. The lawn mower comprises a housing, a charging circuit arranged in the housing, and an assembly arranged on the housing and electrically connected to the charging circuit.

16. An assembly for use on a lawn mower, the lawn mower including a housing and a charging circuit, the assembly comprising: The assembly comprises a wheel assembly and a charging interface part electrically connected to the charging circuit. The wheel assembly and the charging interface part are integrated into one structure. The charging interface part is connected to the housing and comprises a charging mount and a charging interface arranged on the charging mount. The wheel assembly comprises a support wheel, a wheel shaft, and a support wheel mount. The support wheel mount and the charging mount are integrally formed. The assembly comprises a wheel assembly and a charging interface part electrically connected to the charging circuit. The wheel assembly and the charging interface part constitute an integrated structure. The charging interface part is connected to the shell, and the charging interface part comprises a charging mounting seat and a charging interface arranged on the charging mounting seat. The wheel assembly comprises a supporting wheel, a wheel shaft and a supporting wheel mounting seat. The supporting wheel mounting seat and the charging mounting seat are an integrated structure.

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