CN112470678A

CN112470678A - Grass cutter

Info

Publication number: CN112470678A
Application number: CN202011522989.4A
Authority: CN
Inventors: 蒲志高; 高杰; 曹金; 李汪浩
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-03-12

Abstract

The present invention provides a lawn mower comprising: a housing; the movable upper cover is positioned above the shell; the control assembly is positioned in the shell; the cutting mechanism is positioned on the shell; and the control assembly is suitable for controlling the cutting mechanism to work.

Description

Grass cutter

Technical Field

The invention relates to a mower.

Background

The mower is a mechanical tool for trimming lawns, vegetations and the like, and the engine is utilized to drive the blade to rotate at a high speed, so that the weeding speed is greatly improved, the operation time of weeding workers is greatly saved, and a large amount of manpower resources are reduced. The intelligent lawn mower is a robot for maintaining a lawn, has the advantages of intellectualization, modernization, environmental protection, liberation of hands and the like, and is more and more favored by markets and consumers.

Disclosure of Invention

The invention aims to provide a mower.

To achieve the above object, the present invention provides a lawnmower comprising: a housing; the movable upper cover is positioned above the shell; the control assembly is positioned in the shell; the cutting mechanism is positioned on the shell; and the control assembly is suitable for controlling the cutting mechanism to work.

As a further improvement of the present invention, the cutting mechanism comprises: the cutter head height adjusting assembly is arranged on the shell and used for adjusting the height of the cutter head; the prime motor is positioned on the cutter disc height-adjusting assembly and is used for driving the cutter disc to rotate; the cutter head auxiliary height-adjusting assembly is fixedly arranged on an output shaft of the prime motor; the cutter head is positioned at the bottom of the auxiliary height-adjusting component of the cutter head and used for mounting the blades; and the cutter disc height adjusting assembly and the cutter disc auxiliary height adjusting assembly are suitable for adjusting the height of the cutter disc independently or jointly.

As a further improvement of the present invention, the cutter head height adjusting assembly comprises: the cutter head height adjusting bracket is used for fixing a prime motor; the cutter head connecting part is fixed at the bottom of the cutter head height-adjusting support and is used for installing a cutter head driven by a prime motor; and the adjusting part is fixed at the top of the cutter disc height adjusting bracket and drives the cutter disc to move up and down through the cutter disc height adjusting bracket so as to adjust the height of the cutter disc.

As a further improvement of the present invention, the cutter head auxiliary height-adjusting assembly comprises: at least two cutter head connectors are movably sleeved from inside to outside in sequence; the first cutter head connector is positioned at the innermost side and fixedly arranged on an output shaft of the prime mover; the second cutter head connector is positioned on the outermost side and used for connecting the cutter head; and the adjusting piece is used for driving the second cutter head connector to move along the surface of the first cutter head connector so as to adjust the height of the cutter head.

As a further improvement of the present invention, at least one third cutter head connector is further disposed between the first cutter head connector and the second cutter head connector; the third cutter head connector includes: a hollow third body; at least one raised third guide part which is positioned at the inner side of the third body and is matched with the guide groove adjacent to the inner side of the third body; and at least one third guide groove which is positioned at the outer side of the third body and is matched with the guide part adjacent to the outer side of the third body.

As a further improvement of the invention, the mower further comprises a detection mechanism for detecting the relative displacement between the movable upper cover and the machine shell; the detection mechanism comprises: at least one suspension lifting detection assembly positioned on the machine shell to detect the relative displacement of the movable upper cover and the machine shell in the vertical direction; at least one collision detection component, which is positioned on the machine shell and is used for detecting the relative displacement of the movable upper cover and the machine shell in the horizontal direction; and the control component is suitable for adjusting the working state of the mower according to each detection signal.

As a further improvement of the invention, the suspended lift detection assembly comprises: the suspension ball head is fixed on a movable upper cover of the mower; the lifting limiting part is separately arranged below the suspension ball head; the two ends of the suspension spring are respectively fixedly connected with the suspension ball head and the lifting limiting piece; the signal trigger module is positioned at the bottom of the lifting limiting part; and when the movable upper cover and the shell generate relative displacement in the vertical direction, the suspension ball head pulls the lifting limiting piece to move upwards through the suspension spring, and the signal triggering module is induced to send a detection signal to the control assembly.

As a further improvement of the present invention, the collision detecting assembly includes: the second magnetic block is positioned on the movable upper cover; the second reed switch is positioned on the shell and below the second magnetic block; the second lifting detection plate is positioned between the second magnetic block and the second dry spring; when the movable upper cover and the shell generate relative displacement in the horizontal direction, the second magnetic block is close to or far away from the second reed pipe, and the second reed pipe is opened or closed, so that a current signal on the second lifting detection plate is changed; and the second lifting detection plate is electrically connected with the control assembly so as to send the current signal to the control assembly as a detection signal.

As a further improvement of the present invention, the housing includes: an internally sealed housing; a functional hole formed on the shell and communicating the inside and the outside of the shell; and a function module selectively detachably installed at the function hole to detect a sealing state of the case or maintain air pressure balance inside and outside the case.

As a further improvement of the invention, the functional module is an air filter cover to balance the air pressure inside and outside the housing of the mower in the working state; the air filter cover comprises: a base adapted to be mounted at the functional hole; an air filter cover mounting part extending outward from the base part; and the air filter cover mounting part is fixed with the shell through a fastening piece.

As a further improvement of the invention, the functional module is an airtight charging nozzle which is matched with a barometer to detect the airtightness inside the shell of the mower in a non-working state; the airtight nozzle includes: a body part installed at the functional hole; an assembling portion extending outward from the main body portion.

As a further improvement of the invention, the mower further comprises a shock absorption component positioned between the movable upper cover and the machine shell; the shock-absorbing assembly includes: a shock-absorbing member having a hollow portion therein; a connector adapted to pass through the hollow portion to mount the damping element between the housing and the movable upper cover of the mower; when the movable upper cover and the machine shell generate relative displacement in the horizontal direction, the shock absorption element is extruded to generate deformation elasticity.

As a further improvement of the invention, the damping element is in a column shape, one end of the damping element is closed, and the damping element is provided with a damping element mounting hole with a diameter smaller than that of the hollow part; the connecting member is adapted to be inserted into or passed out of the hollow portion of the suspension element from the suspension element mounting hole, i.e., a space for deformation of the suspension element is left between the suspension element and the connecting member.

As a further improvement of the invention, the mower further comprises at least one support between the housing and the movable upper cover; the support member is adapted to support the movable upper cover to prevent it from pressing down the cabinet.

As a further improvement of the present invention, the support member comprises: a pillar; at least one reinforcing sheet extending outwardly from the pillar; the number of the reinforcing sheets is four, and the reinforcing sheets are uniformly distributed on the outer side of the table column; and the reinforcing sheets are distributed in a cross shape to form a cross bone structure with the table posts.

As a further improvement of the invention, the mower further comprises a battery pack assembly for providing electrical energy; the battery pack assembly includes: at least one battery pack holder; the first battery pack and the second battery pack are oppositely arranged on each battery pack fixing frame.

As a further improvement of the present invention, the first battery pack includes: a first battery, a DMS board, a BMS system and a first terminal; the second battery pack comprises a second battery and a second terminal; and the first terminal and the second terminal are electrically connected through a connecting wire.

As a further improvement of the present invention, the battery pack holder includes: two brackets, namely a first bracket and a second bracket; the lifting handle is positioned at the joint of the two brackets; wherein two supports all include: the assembling part and accommodating parts arranged at two sides of the assembling part; the assembling parts of the two brackets are suitable for joint assembly; and the accommodating parts of the two brackets are arranged separately and oppositely to form a battery accommodating space for accommodating the battery pack.

As a further improvement of the invention, the mower further comprises a walking assembly for driving the mower to move; the walking assembly comprises: at least one traveling wheel positioned on the housing; and the at least one universal wheel is positioned on the shell.

As a further improvement of the present invention, the traveling wheel comprises: a tire; a hub for mounting a tire; the balancing weight is installed on the side face of the hub and is coaxial with the hub; the walking wheel still includes: a wheel cover located on the wheel hub; and a wheel cover decoration piece detachably mounted on the wheel cover.

The invention has the beneficial effects that: the mower controls the cutting mechanism to work through the control assembly.

Drawings

Fig. 1 is a perspective view from a top view of a lawnmower according to the present invention.

Fig. 2 is a bottom perspective view of the lawnmower.

Fig. 3 is a top view of the mower.

Fig. 4 is a sectional view a-a in fig. 3.

Fig. 5 is a perspective view of fig. 4.

Fig. 6 is a top view of the mower (without the main body lid).

Fig. 7 is a top perspective view of the removable cover.

Fig. 8 is a perspective view of the movable upper cover from a bottom view.

Fig. 9 is a top perspective view of a lawnmower (without a body flap and a movable top cover).

Fig. 10 is a cross-sectional view E-E of fig. 6.

Figure 11 is a perspective view of the cutter head elevation assembly.

Figure 12 is an exploded view of the cutter head elevation assembly.

Figure 13 is a cross-sectional view of the cutter head elevation assembly.

Fig. 14 is an enlarged view of a portion G in fig. 13.

Figure 15 is a top view of the cutterhead elevation assembly.

Figure 16 is a bottom view of the cutterhead elevation assembly.

Fig. 17a is a perspective view of the height-adjusting spring.

Fig. 17b is a perspective view of the heightening elastic piece at another viewing angle.

Figure 18 is an exploded view of the cutterhead auxiliary elevation assembly.

Figure 19 is a cross-sectional view of the cutterhead auxiliary elevation assembly.

Figure 20 is a top view of the cutterhead auxiliary elevation assembly.

Figure 21 is a bottom perspective view of the cutterhead auxiliary elevation assembly.

Figure 22a is a schematic view of the cutterhead auxiliary elevation assembly lowering the cutterhead.

Figure 22b is a schematic view of the elevation disc of the disc auxiliary elevation assembly.

FIG. 23a is a perspective view of the first cutterhead connector from a top view.

FIG. 23b is a perspective view of the first cutterhead connector at a bottom angle.

Figure 24a is a top perspective view of the second cutterhead connector.

Figure 24b is a perspective view of the second cutterhead connector at a bottom angle.

Figure 25a is a top perspective view of the third cutterhead connector.

Figure 25b is a perspective view of the third cutterhead connector at a bottom angle.

Fig. 26 is a perspective view of the auxiliary heightening bar at a bottom view angle.

Fig. 27 is an exploded perspective view of a blade-assisted height-adjustment assembly of the lawnmower.

Fig. 28 is an enlarged view of a portion D in fig. 5.

Fig. 29a is a schematic view of the height of the cutterhead being adjusted down in the mower.

Fig. 29b is a schematic view of the height of the adjustment cutterhead in the mower.

Fig. 29c is a schematic view of the height of the raised deck in the mower.

Fig. 30 is a perspective view of a suspended lift detection assembly.

Fig. 31 is a cross-sectional view of a suspended lift detection assembly.

Fig. 32 is an assembly view of the suspended lift detection assembly in a lawn mower.

Fig. 33 is an enlarged view of a portion B in fig. 4.

Fig. 34 is a perspective view of the air filter cover.

Fig. 35 is a top view of the air filter cover.

Fig. 36 is a bottom view of the air filter cover.

Fig. 37 is a front view of the air filter cover.

Fig. 38 is a perspective view of the airtight charging nozzle.

Fig. 39 is a top view of the airtight charging nozzle.

Fig. 40 is a bottom view of the airtight charging nozzle.

Fig. 41 is a front view of the airtight charging nozzle.

Fig. 42 is a schematic structural view of a part C in fig. 4.

Fig. 43 is a schematic view of the structure of the shock-absorbing member.

Figure 44 is a bottom view of the suspension element (showing primarily the closed end configuration).

Figure 45 is a top view of the suspension element (showing primarily the open-ended configuration).

Figure 46 is a side view of a shock absorbing member.

Fig. 47 is a perspective view of the support member.

FIG. 48 is a perspective view of the support member from a side view.

Figure 49 is a perspective view of the support from a top view.

Fig. 50 is a perspective view of the support member at a bottom angle.

FIG. 51 is an assembly view of the support in a lawnmower.

Fig. 52 is an enlarged view of a portion F in fig. 8.

Fig. 53 is a perspective view of a battery pack assembly of the present invention.

Fig. 54 is an exploded view of the battery pack assembly shown in fig. 53.

Fig. 55 is an exploded view of the battery pack holder of fig. 54.

Fig. 56 is another angular schematic of fig. 54.

Fig. 57 is an enlarged view of a portion of the handle of fig. 55 at the first and second connection portions.

Fig. 58 is an enlarged view of a portion of the handle of fig. 56 at the first and second connection portions.

Fig. 59 is an exploded view of the two battery packs of fig. 53 connected to each other.

Fig. 60 is a perspective view of a road wheel.

Fig. 61 is an exploded view of the road wheel of fig. 60.

Fig. 62 is a perspective view of a weight.

Fig. 63 is a perspective view of the tire.

Fig. 64 is a perspective view of the hub.

FIG. 65 is an enlarged view of the hub mounting portion shown in FIG. 64.

FIG. 66 is an enlarged view of the hub mounting portion and spokes of FIG. 64.

FIG. 67 is an enlarged partial view of the hub shown in FIG. 64.

Fig. 68 is a split view of the road wheel.

Fig. 69 is a perspective view of the front of the wheel arch trim.

Fig. 70 is a front view of the back of the wheel arch.

Fig. 71 is a sectional view H-H in fig. 70.

FIG. 72 is a perspective view of the inboard side of the wheel cover.

FIG. 73 is an outside elevational view of the wheel cover.

FIG. 74 is a perspective view of the inside of the hub.

FIG. 75 is a perspective view of the outboard side of the hub.

FIG. 76 is an elevational view of the outboard side of the hub.

FIG. 77 is a schematic view of the assembly of the clasp.

FIG. 78 is an assembled view of the positioning member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-10, the present invention discloses a lawn mower, comprising: a housing 10000; a movable upper cover 20000 positioned above the casing 10000; a control component located within the housing 10000; a cutting mechanism 30000 located on the housing 10000; and the control assembly is suitable for controlling the cutting mechanism to work.

Optionally, the movable upper cover 20000 is further provided with a main body flip 90000. Optionally, the control assembly, such as but not limited to a single chip microcomputer or a processor module, may control each mechanism to operate through a corresponding driving circuit.

As an alternative embodiment of the cutting mechanism.

Referring to fig. 4, 5, 11-29 c, the cutting mechanism 30000 comprises: the cutter head height adjusting assembly 31000 is arranged on the shell 10000 and is used for adjusting the height of the cutter head 34000; a prime mover 32000 on the cutterhead elevation assembly 31000 for driving rotation of the cutterhead 34000; the cutter disc auxiliary height-adjusting assembly 33000 is fixedly arranged on an output shaft of the prime mover 32000; the cutter 34000 is positioned at the bottom of the auxiliary cutter height-adjusting assembly 33000 and is used for installing the blades 34100 or blade installation positions; and the cutterhead height adjustment assembly 31000 and the auxiliary cutterhead height adjustment assembly 33000 are adapted to adjust the height of the cutterhead 34000, either individually or in combination.

Referring to fig. 11-17 b, the cutterhead height adjustment assembly 31000 includes: the cutter head heightening bracket 31100 is used for fixing the prime mover 32000; the cutter head connecting part 31200 is fixed at the bottom of the cutter head height-adjusting bracket 31100 and is used for installing a cutter head 34000 driven by a prime motor; and an adjusting part 31300 fixed to the top of the cutter height adjusting bracket 31100, and driving the cutter 34000 to move up and down through the cutter height adjusting bracket 31100 to adjust the height of the cutter 34000.

Alternatively, the prime mover is such as, but not limited to, an electric motor.

Referring to fig. 11 to 13, the adjusting part 31300 includes: a fixed housing 31310 for accommodating the cutter head height adjustment bracket 31100; a height adjusting lever 31320 which is clamped between the cutter disc height adjusting bracket 31100 and the fixed housing 31310 and is connected to the upper part of the cutter disc height adjusting bracket 31100; a height-adjusting knob 31330 fixed to the top of the height-adjusting lever 31320; and rotating the height-adjusting knob 31330, the height-adjusting lever 31320 drives the cutter 34000 to move up or down through the cutter height-adjusting bracket 31100.

Alternatively, referring to fig. 11 and 12, the stationary housing 31310 includes: a front case 31311 and a bottom case 31312 which are vertically separated; the height adjusting lever 31320 is located between the cutter disc height adjusting bracket 31100 and the face housing 31311. Optionally, the face shell and the bottom shell may be fixedly mounted inside the casing through corresponding fasteners or limiting members, and a space for accommodating the bracket is formed between the face shell and the bottom shell.

Alternatively, referring to fig. 12 and 13, the height adjusting lever 31320 includes: a knob mounting part 31321 and a hollow connection part 31322; the knob mounting part 31321 is used for mounting the heightening knob 31330; and the hollow connecting portion 31322 is sleeved outside the cutter disc height adjusting support 31100 through an internal thread. Alternatively, the knob mounting portion 31321 may be, but is not limited to, snapped or screwed onto the height-adjusting knob 31330 to move the height-adjusting lever 31320 up or down when the height-adjusting knob 31330 is rotated. Hollow connecting portion 31322 overlaps through the internal thread cover and establishes in the upper portion outside of blade disc height-adjusting support 31100, can drive the support follow motion through the altitude mixture control pole.

Further, referring to fig. 1, 3, 6, and 15, the adjusting part 31300 further includes: and the dial 31340 is used for displaying the height of the cutter 34000, the dial is horizontally arranged on the surface of the face shell, the side surface of the heightening knob 31330 is provided with a pointer 31331, the heightening knob is rotated, and the value on the dial 31340 corresponding to the pointer is the height of the cutter from the ground.

Referring to fig. 12 and 13, the cutter disc height adjustment assembly 31000 further comprises a height adjustment pressing member 31400; two ends of the heightening pressing piece 31400 are respectively clamped with the face shell 31311 and the bottom shell 31312 to support the cutter disc heightening bracket 31100; a height adjusting rod flange 31323 extending outwards is arranged at the top of the hollow connecting part 31322; and the heightening pressing member 31400 is in a hollow ring shape, and the inner wall 31410 thereof is adapted to support a height adjusting rod flange to clamp the height adjusting rod 31320 between the cutter disc heightening bracket 31100 and the face shell 31311, thereby preventing it from shaking up and down. And the two ends of the heightening pressing member 31400 are provided with sealing strips 31420, which can prevent water from entering from the end cover of the prime mover 32000.

Optionally, referring to fig. 13, 14, 17a and 17b, the cutter disc height adjusting assembly 31000 further includes a height adjusting elastic sheet 31500 located between the height adjusting pressing member 31400 and the hollow connecting portion 31322; one end of the height-adjusting elastic sheet 31500 is fixed on the inner wall 31410 of the height-adjusting pressing member 31400, and the other end is clamped in the height-adjusting rod clamping groove 31324 outside the hollow connecting portion 31322, so as to prevent the height-adjusting rod from radially rotating during the operation of the mower. Because the height adjusting rod clamping grooves on the outer side of the hollow connecting portion 31322 are spaced strips, when the height adjusting rod rotates to ascend or rotate to descend, the height adjusting elastic pieces can be clamped into the height adjusting rod clamping grooves one by one along the height adjusting rod clamping grooves 31324, so that the rotating force of the height adjusting knob is always kept consistent, the phenomenon that the height adjusting elastic pieces are clamped by shells is avoided, and the normal work of the height adjusting knob is influenced. Optionally, the mounting end 31510 of the height-adjusting elastic sheet 31500 is fixed on the height-adjusting pressing member by, for example, but not limited to, a screw, and the snap-in end 31520 thereof is snapped into the height-adjusting lever snap groove 31324. However, in other embodiments, the raised resilient member may be a spring, a torsion spring, or the like.

Referring to fig. 12, the cutter head height adjusting bracket 31100 includes: a stent body 31110; dust screens 31120 respectively provided at both ends of the holder body 31110; and the dust screen 31120 is assembled on the end cover 32100 of the prime mover 32000 through a sealant 31130 and locked on the bracket body 31110 through a dust screen screw, so that the prime mover can play a role in water and dust prevention. Simultaneously, the dust screen still has ventilative cooling, avoids the motor inflation that generates heat.

Referring to fig. 12 and 13, the impeller attachment portion 31200 includes: the felt cover 31210 is positioned between the auxiliary height-adjusting assembly 33000 of the cutterhead and the cutterhead 34000; and a dust felt 31220 positioned over the felt cover 31210 to prevent grass clippings from entering the cutterhead height adjustment assembly 31000 at the cutterhead 34000.

Alternatively, referring to fig. 4, 5 and 16, the auxiliary cutterhead height adjustment assembly 33000 is mounted on the output shaft of the prime mover 32000, for example, but not limited to, by a tight fit, and the bottom surface of the auxiliary cutterhead height adjustment assembly 33000 may be fitted with at least one mowing blade 34100 via the cutterhead 34000. In this embodiment, the number of the blades 34100 is three, and the blades are uniformly distributed on the circumference of the cutter 34000. However, in other embodiments, the number of blades 34100 can be varied as desired.

Specifically, when the terrain clearance of blade disc or blade need to be improved, can be through the rotatory knob that increases of manual work or other modes, increase the knob and rotate and drive the rotatory rising of altitude mixture control pole, altitude mixture control pole through with support threaded connection to drive the rotatory rising of support, the support drives the vertical rising of prime mover in it, and then drives the blade disc through the blade disc connector and rise, the terrain clearance of blade risees promptly, can show through the calibrated scale. Conversely, the height-adjusting knob is rotated reversely, so that the height of the blade from the ground can be reduced. After the height of the blade from the ground is adjusted, a prime motor (such as a motor) can be controlled to start through the control assembly, so that the blade is driven to rotate, and the mowing action is carried out.

Referring to fig. 18 to fig. 29c, the cutter head auxiliary height-adjusting assembly 33000 includes: at least two cutter head connectors are movably sleeved from inside to outside in sequence; wherein the first cutterhead connector 33100, located innermost, is fixedly mounted on the output shaft of the prime mover 32000; the second cutter head connector 33200 is positioned on the outermost side and is used for connecting the cutter head 34000; and an adjusting member 33300 for moving the second cutter head connector 33200 along the surface of the first cutter head connector 33100 to adjust the height of the cutter head 34000.

Optionally, the number of the cutter head connectors is at least two, and when the number of the cutter head connectors is two, the second cutter head connector 33200 is directly movably sleeved on the surface of the first cutter head connector 33100. When the number of the cutter head connectors is more than two, the rest cutter head connectors are third cutter head connectors, and all the third cutter head connectors are positioned between the first cutter head connector and the second cutter head connector and are movably sleeved from inside to outside in sequence. As shown in the drawings, the number of cutter deck connectors is three, but it is assumed that the number of cutter deck connectors is three in a narrow sense.

Referring to fig. 23 a-23 b, the first blade hub connector 33100 includes: a hollow first body 33110; at least one first guiding slot 33120 disposed outside the first body 33110; and the first body 33110 is tightly fitted around the outer side of the output shaft of the prime mover 32000 and guides the movement of the cutter head connector adjacent to the outer side thereof through the first guide slot 33120.

Optionally, the first body is hollow and cylindrical, and both ends of the first body are open, so that an output shaft of the prime mover 32000 and an auxiliary height-adjusting rod for installation are conveniently sleeved. The first guiding slots 33120 are uniformly distributed on the surface of the first body 33110, and the first guiding slots 33120 have the same height as the first body 33110, i.e., the first guiding slots 33120 are through slots.

Optionally, referring to fig. 23b, the lower end of the first body 33110 is further provided with at least one first mounting hole 33130 for mounting a first position-limiting member 33140. The first position-limiting member 33140, such as but not limited to a screw or a bolt, is threadedly mounted in the first mounting hole 33130; the wide head 33141 of the first stop 33140 protrudes beyond the slot end of the first guide slot to limit the guide portion fitted therein from sliding out, i.e., to limit 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 the present case, when there are two cutter head connectors, the wide head of the first stopper 33140 is used to limit the second cutter head connector from disengaging from the surface of the first cutter head connector; the wide head 33141 of the first stop 33140 serves to limit the disengagement of the third cutterhead connector from the surface of the first cutterhead connector when there are at least three cutterhead connectors.

As seen in fig. 24 a-24 b, the second cutterhead connector 33200 includes: a hollow second body 33210; at least one protruding second guide part 33220 disposed at an inner side of the second body 33210; an open end 33230 at one end of the second body 33210 for housing the inside cutter head connector; a closed end 33240 at the other end of the second body 33210 for mounting the adjustment member 33300; and the second guide portion 33220 is fitted with an inside-adjacent guide groove to guide the second cutter deck connector 33200 to move along the inside-adjacent cutter deck connector thereof.

Optionally, the second body is hollow and cylindrical, and one end of the second body is open (i.e., the open end 33230) so as to facilitate sleeving of a cutter head connector inside the second body, such as a first cutter head connector or a third cutter head connector; the other end is closed (i.e., closed end 33240) for mounting the cutterhead and the adjustment end of the auxiliary height adjustment bar. And the second guiding parts 33220 are uniformly distributed on the inner surface of the second body 33210; the second guide part 33220 includes at least one second long protrusion 33221 and at least one second short protrusion 33222 that are staggered; wherein the height of the second long protrusion 33221 is equal to the height of the second body 33210; the second short projection 33222 has a height that is less than the height of the second body 33210 and is positioned proximate the open end 33230 of the second body 33210 to cooperate with a corresponding stop to limit disengagement of the second cutterhead connector from the third cutterhead connector or the first cutterhead connector surface.

Optionally, referring to fig. 24b, the closed end of the second body 33210 is further provided with at least one cutter mounting hole 33250 to be fixedly mounted with the cutter 34000 by a fastener 33260. The cutter mounting hole 33250 is located at the bottom of the second long projection 33221.

Optionally, referring to fig. 18, at least one third cutter head connector 33400 is further disposed between the first cutter head connector 33100 and the second cutter head connector 33200. When one third cutter head connector 33400 is provided, that is, the number of cutter head connectors in the auxiliary cutter head height-adjusting assembly is three; when the number of the third cutter head connectors 33400 is at least two, that is, the number of the cutter head connectors in the auxiliary cutter head height-adjusting assembly is at least four, and the structures of the third cutter head connectors may be the same, but the sizes are different, so that the third cutter head connectors are movably sleeved from inside to outside in sequence.

Referring to fig. 25 a-25 b, the third cutter head connector 33400 includes: a hollow third body 33410; at least one protruded third guide part 33420 positioned at an inner side of the third body 33410 and fitted into a guide groove adjacent to the inner side thereof; and at least one third guide groove 33430 located at an outer side of the third body 33410 and adapted to the guide part adjacent to the outer side thereof.

Optionally, the third body is hollow and cylindrical, and both ends of the third body are provided with openings, so that the cutter head connector on the inner side of the third body can be conveniently sleeved with the third body. The third guide grooves 33430 are uniformly distributed on the surface of the third body 33410, and the third guide grooves 33430 are equal in height to the third body 33410, that is, the third guide grooves 33430 are through grooves. And the third guiding parts 33420 are uniformly distributed on the inner surface of the third body 33410; the third guide part 33420 includes at least one third long protrusion 33421 and at least one second short protrusion 1422 that are staggered; wherein the third long protrusion 33421 has a height equal to that of the third body 33410; the third short projection 33422 has a height less than the height of the third body 33410 and is positioned adjacent the lower end of the third body 33410 to cooperate with a corresponding stop to limit the disengagement of the second or other third cutterhead connector from the third cutterhead connector surface. In the present case, the third guide portions and the third guide grooves may be in one-to-one correspondence and are disposed at inner and outer sides of the third body. Of course, the third guide portions and the third guide grooves may be alternatively arranged as long as the assembling requirements are met.

Optionally, referring to fig. 21 and 25b, the lower end of the third body 33410 is further provided with at least one third mounting hole 33440 for mounting a third limiting member 33450; the third mounting hole 33440 is located at the bottom of the third long protrusion 1221. The third limiting member 33450, such as but not limited to a screw or a bolt, may be the same as or different from the first limiting member, and is installed in the third installation hole 33440 by a screw thread; wherein the wide head portion 33451 of the third retaining member 33450 protrudes beyond the channel end of the third guide channel 33430 to limit the sliding out of the guide portion fitted thereto, i.e., to limit the disengagement of the cutterhead connector adjacent to the outside of the third cutterhead connector from the surface of the third cutterhead connector. In the present case, as shown in fig. 4, the wide head 33141 of the first restraint 33140 serves to restrain the first cutterhead connector 33100 from disengaging from the surface of the third cutterhead connector 33400; when there are three cutterhead connectors, the wide head portion 33451 of the third retaining member 33450 serves to retain the second cutterhead connector 33200 from disengaging from the surface of the third cutterhead connector 33400 from the bottom; when the number of the cutter deck connectors is at least four, the wide head portion 33451 of the third retaining member 33450 serves to restrict the cutter deck connector outside thereof from coming off the surface of the third cutter deck connector.

Referring to fig. 19 and 26, the adjusting member 33300 includes an auxiliary elevation rod 33310; the mounting end 33311 of the auxiliary height-adjusting rod 33310 abuts against the output shaft end of the prime mover 32000, and the adjusting end 33312 of the auxiliary height-adjusting rod penetrates through each cutterhead connector and is in threaded connection with the cutterhead 34000; and the auxiliary height adjusting rod 33310 is rotated, and the cutter 34000 drives the second cutter connector 33200 to move. And a closed end 33240 of the second body is provided with a cutter head connector through hole 33270 so as to be suitable for the auxiliary height-adjusting rod 33310 to penetrate and extend out. Of course, the closed end 33240 of the second body may be provided with other structural holes 33280 for assembling or observing or weight reduction.

Optionally, referring to fig. 18 and 27, the mounting end 33311 of the auxiliary height-adjusting rod 33310 is clamped in the first body 33110 by a first stopper 33140; an adjusting groove 33313 is formed in the adjusting end 33312 of the auxiliary height-adjusting rod 33310; and the cutter 34000 is provided with a threaded through hole 34200 suitable for the movement of the adjusting end 33312.

Optionally, as shown in fig. 18 and 19, a spring washer 33500 is further disposed between the auxiliary height adjusting rod 33310 and the output shaft end of the prime mover 32000.

In this case, the process of adjusting the height of the cutter head by the cutter head auxiliary height-adjusting assembly is as follows, which can be summarized as the following two cases, but other possible embodiments of adjusting the height of the cutter head by the cutter head auxiliary height-adjusting assembly should also be within the scope of the present application.

(1) The process of adjusting the height of the cutter head through the two cutter head connectors is as follows: the auxiliary height adjusting rod 33310 can be manually or in other manners, for example, a tool such as a screwdriver is clamped into the adjusting groove 33313, and the auxiliary height adjusting rod 33310 is rotated, so that the cutter head is driven to ascend or descend by the auxiliary height adjusting rod 33310 during rotation, and the cutter head drives the second cutter head connector to move along the first cutter head connector, thereby completing the height adjusting action of the cutter head. The adjustment process of the cutter head and the movement process of the cutter head connector are both simple and will not be illustrated for the moment.

(2) Because the process of adjusting the height of the cutterhead by three or more cutterhead connectors is similar, the height adjusting action of the cutterhead is explained by taking the number of the cutterhead connectors as three as an example, and the specific adjusting process is as follows: as shown in fig. 22a to 22b or fig. 29a to 29c, a first cutter head connector 33100, a third cutter head connector 33400 and a second cutter head connector 33200 are movably sleeved from inside to outside in sequence. To facilitate the adjustment of the cutter head, (1) assuming that the cutter head 34000 is initially at the lowest height (as shown in fig. 22a or fig. 29 a), the first stopper 33140 is installed in the first installation hole 33130, and the wide head 33141 of the first stopper 33140 protrudes out of the first guide slot 33120 and abuts against the bottom of the third short protrusion 33422 to restrict the third cutter head connector from being disengaged from the outside of the first cutter head connector 33100; the wide head 33141 of the first stopper 33140 also protrudes out of the hollow of the first body 33110 and abuts against the bottom of the mounting end 33311 of the auxiliary height-adjusting rod 33310 to prevent the auxiliary height-adjusting rod 33310 from being disengaged from the inside of the first blade hub connector 33100. The third stopper 33450 is installed in the third installation hole 33440, and the wide head 33451 of the third stopper 33450 protrudes out of the third guide groove 33430 and abuts against the bottom of the second short protrusion 1222 to restrict the second cutterhead connector 33200 from being disengaged from the outside of the third cutterhead connector 33400. (2) the auxiliary height-adjusting rod 33310 is rotated in the manner described above, so that the auxiliary height-adjusting rod 33310 drives the cutter 34000 to ascend when rotating, and at the moment, the cutter 34000 drives the second cutter connector 33200 to move along the surface of the third cutter connector 33400, so as to increase the height of the cutter from the ground. (3) When the closed end 33240 (bottom end) of the second cutter head connector 33200 abuts against the third position-limiting member 33450 or the bottom of the third body 33410, the second cutter head connector 33200 is completely sleeved outside the third disk connector 33400. (4) The second cutter head connector 33200 continues to move upward, the third cutter head connector 33400 is driven by the second cutter head connector 33200 to move along the surface of the first cutter head connector 33100 (as shown in fig. 29 b), the ground clearance of the cutter head continues to be increased until the third cutter head connector 33400 is completely sleeved outside the first cutter head connector 33100, at this time, the first cutter head connector 33100, the third cutter head connector 33400 and the second cutter head connector 33200 are completely sleeved from inside to outside in sequence, the closed end of the second cutter head connector 33200 abuts against the bottom of the first cutter head connector 33100, and the cutter head 34000 is adjusted to a higher position.

As an alternative embodiment of the detection means.

As shown in fig. 3-7 and fig. 30-33, the detecting mechanism 40000 includes: at least one suspension lifting detection component 41000, located on the cabinet 10000, for detecting the relative displacement of the movable upper cover 20000 and the cabinet 10000 in the vertical direction; at least one collision detecting assembly 42000, provided on the housing 10000, for detecting a relative displacement of the movable upper cover 20000 and the housing 10000 in a horizontal direction; and the control component is suitable for adjusting the working state of the mower according to each detection signal.

Optionally, the control assembly may include a processor, various control circuits, a sensing unit and a corresponding driving circuit, etc., and may detect a current signal change to control the mower to stop or work.

Optionally, referring to fig. 6 and 7, two suspension lifting detection assemblies 41000 are provided, and are respectively arranged at the diagonal positions of the cabinet 10000 through first installation positions 21000 on the movable upper cover 20000; optionally, the number of the suspension lifting detection assemblies 41000 is four, and the first installation positions 21000 on the movable upper cover 20000 are respectively arranged at the corners of the cabinet 10000. And the number of the collision detection assemblies 42000 is two, and the two collision detection assemblies are respectively arranged at two ends of the casing 10000 through second mounting positions 22000 on the movable upper cover 20000. Of course, the number of the suspension lifting detection assemblies and the collision detection assemblies can be adjusted according to the vehicle type and the structural requirements, and the distribution positions of the suspension lifting detection assemblies and the collision detection assemblies on the shell can be changed.

As shown in fig. 30 and 32, the suspension lift detection assembly 41000 includes: a hanging ball head 41100 fixed on a movable upper cover of the mower; a lifting limiting piece 41200 which is separately arranged below the suspension ball head 41100; a suspension spring 41300, both ends of which are fixedly connected with a suspension ball 41100 and a lifting limit piece 41200 respectively; a signal trigger module 41400 located at the bottom of the lift limiting member 41200; when the suspension ball 41100 moves upward, the suspension spring 41300 pulls the lift limiting member 41200 to move upward, and the inducing signal triggers the module 41400 to send a detection signal.

Specifically, in this embodiment, see fig. 32, a spherical joint 41110 is disposed on a side surface of the suspension ball 41100, so as to fix the suspension ball 41100 on a movable upper cover 20000 of the lawn mower by a snap-in fastener; two ends of the suspension spring 41300 are fixedly connected with the suspension ball 41100 and the lifting limit piece 41200 through threads respectively. When the movable top cover of the lawn mower moves upward, the suspension ball 41100 is driven to move upward, and at this time, the suspension spring 41300 pulls the lift limiting member 41200 to move upward, so as to trigger the module 41400 to send a detection signal. In addition, the top of hanging bulb 41100 is also provided with a limiting groove 41111, which is used in cooperation with a limiting column on the movable upper cover, so that horizontal shaking generated between the hanging bulb and the movable upper cover can be avoided.

In the present case, the suspension spring is the spring that rigidity is great, is difficult to produce great deformation in the vertical direction, both can satisfy the requirement that suspension spring 41300 pulling promoted locating part 41200 upward movement, can make suspension spring can also play the effect of horizontal damping again, also can make hang and allow to have certain relative displacement in the horizontal direction between bulb and the promotion locating part, when the lawn mower produced the collision, can not damage and hang and promote the detection components or produce the wrong report and police. Of course, in other embodiments, the suspension spring may also be fixedly connected to the suspension ball 41100 and the lift-limiting member 41200 by a snap or a pin lock.

Optionally, in this case, as shown in fig. 32, the signal trigger module 41400 includes: a first magnet 41410 fixed to a lower end of the lift limiting member 41200, a first lift detecting plate 41420 positioned below the lift limiting member 41200, and a first reed pipe 41430 positioned on the first lift detecting plate 41420; when the lift limiter 41200 moves upward, the first magnetic block 41410 moves away from the first reed pipe 41430, and the first reed pipe 41430 opens or closes, so that the current signal of the first lift detection plate 41420 changes, that is, the signal trigger module sends out the detection signal. And the first lifting detection plate and the second lifting detection plate, such as but not limited to Hall plates, are electrically connected with the control assembly.

Optionally, the first reed switch is located right below the first magnetic block.

Optionally, referring to fig. 31 and 32, the hanging and lifting detection assembly further comprises a hanging fixed corrugated sleeve 41500 sleeved outside the hanging spring 41300; one end of the hanging fixed corrugated sleeve 41500 is clamped on the hanging ball head 41100, and the other end of the hanging fixed corrugated sleeve 41600 is fixedly arranged on a shell 10000 of the mower through a hanging fixed frame 41600; when the lifting limiting member moves upwards, the hanging fixed corrugated sleeve 41500 is stretched, so that the reset pulling force can be generated, and the sealing protection effect can be achieved. Of course, in order to increase the restoring force of the suspension and lifting detection assembly, the suspension and lifting detection assembly 41000 for a mower further comprises a suspension and restoring spring 41700 sleeved outside the lifting limit piece 41200; two ends of the suspension return spring 41700 respectively abut against the bottoms of the suspension fixing frame 41600 and the lifting limiting piece 41200; when the lifting limiting part moves upwards, the hanging fixing frame 41600 is kept still, so that the distance between the bottoms of the lifting limiting part of the hanging fixing frame 41600 is reduced, the hanging return spring 41700 is compressed to generate return elastic force, and the hanging lifting detection assembly is reset after the mower stops working, so that the phenomenon that the mower is jammed is avoided.

Optionally, referring to fig. 32, the lifting position-limiting member 41200 may be a hollow rod, and a lifting position-limiting member slot 41210 is disposed on a side surface of the hollow rod; the signal trigger module 41400 further includes: a magnet holder 41440 positioned within the hollow interior of the lift limiter 41200; the magnet bracket 41440 is suspended in the lifting limiting part clamping groove 41210 through ears; the first magnetic block 41410 is fixed at the bottom of the magnet holder 41440, so that the first magnetic block 41410 is ensured to be fixed at the bottom end of the hollow interior of the lifting limiting member 41200, meanwhile, the bottom of the lifting limiting member 41200 is provided with a lifting limiting member flange 41220 extending outwards, and the outer diameter of the lifting limiting member flange 41220 is larger than the inner diameter of the suspension fixing frame 41600, so that the lifting limiting member flange 41220 can limit the stroke of the first magnetic block 41410 in the vertical direction, and the overall stability of the suspension lifting detection assembly is ensured.

Referring to fig. 4 and 33, the collision detection assembly 42000 includes: the second magnetic block 42100 is positioned on the movable upper cover 20000; a second reed switch 42200 which is positioned on the casing 10000 and is positioned below the second magnetic block 42100; a second lift detection plate 42300 positioned between the second magnet 42100 and the second reed pipe 42200; when the movable upper cover 20000 and the casing 10000 generate relative displacement in the horizontal direction, the second magnetic block 42100 is close to or away from the second reed pipe 42200, and the second reed pipe 42200 is opened or closed, so that the current signal on the second lifting detection plate 42300 is changed; and the second lift detection plate 42300 is electrically connected with the control assembly to send the current signal as a detection signal to the control assembly.

Optionally, the second reed switch is located right below the second magnetic block.

Referring to fig. 33, the collision detection assembly 42000 further includes: the magnet bracket 42400 is fixed on the movable upper cover 20000, and the magnet bracket 42400 is in a pocket shape to hold the second magnet 42100, so that a certain gap is left between the second magnet 42100 and the second reed pipe 42200.

As an alternative embodiment of the housing.

As shown in fig. 9, 34 to 41, the housing 10000 includes: an internally sealed housing 11000; a function hole or a function mounting position (shielded by the air filter 12000, not shown) provided on the housing 11000, communicating the inside and outside of the housing 11000; and a function module selectively detachably installed at the function hole to detect a sealing state of the case or maintain air pressure balance inside and outside the case.

Alternatively, referring to fig. 34-37, when the functional module is an air filter 12000, the air pressure inside and outside the housing 11000 can be balanced when the mower is in operation. The air filter cover 12000 includes an air permeable base portion 12100 installed at the functional hole, and an air filter cover installation portion 12200 extending outward from the air permeable base portion 12100. The air permeable base portion 12100 is provided with corresponding air permeable holes 12110, which can be made of air permeable material to achieve the air permeable purpose. The two air filter cover installation portions 12200 are provided, and the two air filter cover installation portions 12200 extend from the air permeable base portion 12100 in two opposite directions, respectively, so as to be symmetrically provided on both sides of the air permeable base portion 12100. The air filter cover 12000 mechanically fixes the air filter cover mounting portion 12200 and the housing 11000 by a fastener. The fastener may be any suitable component such as a screw, bolt, or snap-fit, without limitation. Optionally, the air filter cover mounting portion 12200 is provided with a corresponding air filter cover mounting hole 12210, so that the air filter cover mounting portion 12200 and the housing 11000 are mechanically fixed by screws.

Optionally, referring to fig. 35, a stud 12220 is further disposed on an installation inner side (a side close to the housing) of the air filter cover 12000, and the stud 12220 is located at an edge of the air filter cover installation portion 12200 and is adapted to a hole on the housing, so as to limit the air filter cover 12000 when installed. Referring to fig. 36, the air filter housing mounting portion 12200 is provided with a slope on the mounting outer side (the side away from the housing) of the air filter housing 12000, and the air permeable base portion 12100 gradually protrudes out of the housing when the air filter housing 12000 is completely mounted.

Alternatively, referring to fig. 38-41, when the functional module is an airtight charging nozzle 13000, an air pressure gauge may be used to detect the airtightness of the casing. The airtight charging nozzle 13000 comprises a body part 13100 installed at the functional hole and an assembling part 13200 extending outward from the body part 13100. The two assembling portions 13200 are provided, and the two assembling portions 13200 extend from the main body 13100 in two opposite directions to be symmetrically provided at both sides of the main body. On the outside of the body 13100 (the side away from the body), see fig. 40, an outwardly protruding inflation tube 13300 is provided to connect with the barometer to detect the air tightness of the mower. The extending direction of the assembling portion 13200 is perpendicular to the extending direction of the filling pipe 13300. The airtight charging nozzle 13000 mechanically fixes the assembly portion 13200 and the housing 11000 by a fastener (not shown). The fasteners may be suitable components such as screws, bolts, etc., without limitation. Optionally, as shown in fig. 39, the assembling portion 13200 is provided with a corresponding assembling hole 13210, so that the assembling portion 13200 and the housing 11000 are mechanically fixed by screws. And the outside (the side away from the housing) of said assembling portion 13200 is provided with a slope, which causes the body portion 13100 to gradually protrude out of the housing when the airtight nozzle 13000 is completely mounted.

In the present case, can be through artifical or other modes in function hole department installs different functional module to conveniently detect sealed state or realize that the inside and outside atmospheric pressure of casing 11000 is balanced, satisfy the functional requirement of lawn mower at different operating condition. As in the operating state, the mower uses the air filter shroud 12000 to balance the air pressure inside the housing 11000 of the mower with the outside; for another example, when the air tightness needs to be detected, the air filter 12000 is replaced by the air-tight inflation nozzle 13000, then a rubber tube is sleeved on the inflation tube 13300 of the air-tight inflation nozzle 13000, and whether the upper limit of the inflation pressure and the pressure maintaining capability meet the standard is detected by a pressure gauge, so that whether the sealing is reliable or not can be detected.

As an alternative embodiment of the shock absorbing assembly.

4, 42-46, the mower further comprises a shock assembly 50000 between the movable upper cover and the housing; shock-absorbing assembly 50000 includes: a shock absorbing member 51000 having a hollow portion 51100 therein; a connection 52000 suitable to pass through said hollow 51100 to mount the shock absorbing element 51000 between the housing 10000 and the movable upper cover 20000 of the mower; when the movable upper cover and the machine shell generate relative displacement in the horizontal direction, the shock absorption element is extruded to generate deformation elasticity.

Referring to fig. 44 and 45, the damper member 51000 has a cylindrical shape or a circular column shape, one end of which is closed and is provided with a damper member mounting hole 51200 having a diameter smaller than that of the hollow portion; the connecting member 52000 is adapted to be inserted into or passed out of the hollow portion 51100 of the shock absorbing element 51000 through the shock absorbing element mounting hole 51200, i.e., a space for deformation of the shock absorbing element is left between the shock absorbing element and the connecting member. Optionally, the damping element may be made of elastic rubber, so that the deformation mainly comes from the gap, and the self-compression capacity of the damping element can assist in compressing the gap to generate deformation elasticity. To secure the shock absorbing element 51000, see fig. 42, the connecting member 52000 includes: a shock absorbing element fastener 52100 and a mounting post 52200 located on the movable upper cover 20000; the dampening member fasteners 52100 are passed through the dampening member mounting holes and threadably engaged with the mounting posts 52200 to secure the dampening member to the mounting posts. The damping element fasteners 52100 may be screws that are threaded into the mounting posts or threaded sleeves that are threaded onto the outside of the mounting posts to prevent the damping element from loosening. Of course, it is understood that in other embodiments, the shock absorbing element 51000 can be fixedly mounted on the movable upper cover 20000 or the housing 10000 by other means. The present invention does not limit the fixing and mounting manner of the shock absorbing member 51000. In order to meet the assembly and design requirements of the shock absorbing element, it is preferable that the other end of the shock absorbing element 51000 is open and inclined, see fig. 43 and 46, and the shock absorbing element 51000 is provided with a limit wall 51300 at a side close to the movable upper cover to be adapted to the inner wall of the movable upper cover, so as to prevent the shock absorbing element 51000 from rotating around the mounting column 52200. However, it is understood that in other embodiments, the shock absorbing member 51000 can be a spring, torsion spring, tension spring, damping member, or the like of similar construction.

As an alternative embodiment of the support.

8, 47-52, further comprising at least one support 60000 between housing 10000 and movable upper cover 20000;

the support member is adapted to support the movable upper cover 20000 to prevent it from pressing down the housing 10000.

The support 60000 comprises: column 61000; at least one stiffening patch 62000 extending divergently from the column 61000.

Optionally, the number of the reinforcing pieces 62000 is four, and the reinforcing pieces 62000 are uniformly distributed on the outer side of the table column 61000; the reinforcing pieces 62000 are distributed in a cross shape to form a cross bone structure with the table column 61000 so as to provide a larger supporting force for the movable upper cover.

Specifically, the specific structural shape of the reinforcing sheet 62000 is as follows: the reinforcing sheet 62000 has a right trapezoid shape with a top 62400 that is wider than a bottom 62100 of the reinforcing sheet 62000 to improve stability and support of the support. The bottom 62100 of the reinforcing piece 62000 transitions with the side 62200 of the reinforcing piece 62000 by a chamfer 62300, and the chamfer 62300 is a circular arc chamfer to prevent the bottom corner from damaging the housing when the support is supporting the movable upper cover.

Optionally, see fig. 48, the top portion 62400 of the reinforcing sheet 62000 is further provided with a mounting groove 62500 for fitting with the inner side of the movable upper cover, which may be mounted by fasteners such as screws, bolts, etc. Of course, the pillar, the reinforcing plate and the movable upper cover may be integrally formed by an integral molding technique such as injection molding.

As an alternative embodiment of the battery pack assembly.

Referring to fig. 2, 53-59, the lawnmower further comprises a battery pack assembly 70000 for providing electrical energy; the battery pack assembly 70000 includes: at least one battery pack holder 71000; each of the battery pack holders 71000 is provided with a first battery pack 72100 and a second battery pack 72200, respectively. And the battery pack assembly 70000 may be mounted inside the chassis and removably packaged by a battery pack cover 74000.

Of course, the battery pack assembly 70000 in the present case may further include a plurality of battery pack fixing brackets; the first battery pack 72100 and the second battery pack 72200 are arranged on the battery pack fixing frames respectively. The battery pack holders may be, but are not limited to, arranged side-by-side or stacked.

Referring to fig. 59, a first battery pack 72100 and a second battery pack 72200 are electrically connected by a connecting line 72300 (the two battery packs can be used in parallel to provide a desired output current). The first battery pack 72100 and the second battery pack 72200 are respectively received in the two battery receiving spaces of the aforementioned battery pack holder 71000, the first battery pack 72100 includes a first terminal 72120, a BMS system 72110, and a DMS circuit board disposed inside the first battery pack 72100, and the second battery pack 72200 is provided with a second terminal 72210. When the battery pack is connected, the first terminal 72120 and the second terminal 72210 are oppositely disposed and electrically connected by the connecting wire 72300, so that the first battery pack 72100 and the second battery pack 72200 are electrically connected, and the connecting wire 72300 is accommodated in the battery accommodating space of the battery pack fixing frame 71000.

Alternatively, as shown in fig. 55 to 58, the battery pack holder 71000 includes: two brackets, a first bracket 71100, a second bracket 71200; a handle 73000 at the junction of the two brackets; wherein two supports all include: the assembling part and accommodating parts arranged at two sides of the assembling part; the assembling parts of the two brackets are suitable for joint assembly; and the accommodating parts of the two brackets are arranged separately and oppositely to form a battery accommodating space for accommodating the battery pack.

As shown in fig. 55-58, the first bracket 71100 includes a first assembling portion 71110 (i.e., an assembling portion of the first bracket) and a first receiving portion 71130, and the first receiving portion 71130 is provided with two portions and is distributed on the left and right sides of the first assembling portion 71110; the second bracket 71200 includes a second assembling portion 71210 (i.e., an assembling portion of the second bracket) and a second receiving portion 71230, the second receiving portion 71230 is also provided with two portions and is distributed on the left and right sides of the second assembling portion 71210, and the first assembling portion 71110 and the second assembling portion 71210 are matched with each other to fixedly connect the first bracket 71100 and the second bracket 71200. The first bracket 71100 and the second bracket 71200 are disposed opposite to each other, the first assembly portion 71110 and the second assembly portion 71210 are also disposed opposite to each other, and a handle mounting position is formed inside the first assembly portion 71110 and the second assembly portion 71210, a direction of the first assembly portion 71110 toward the second assembly portion 71210 is an opening direction of the first assembly portion 71110, and a direction of the second assembly portion 71210 toward the first assembly portion 71110 is an opening direction of the second assembly portion 71210. The first receiving portion 71130 and the second receiving portion 71230 are also disposed opposite to each other to form a battery receiving space between the first receiving portion 71130 and the second receiving portion 71230. In this embodiment, two first receiving portions 71130 and two second receiving portions 71230 are provided, so that two battery receiving spaces can be formed between the first bracket 71100 and the second bracket 71200, and two battery packs 72000 can be conveniently received.

Referring to fig. 55-58, each of the first receiving portion 71130 and the second receiving portion 71230 includes a limiting frame 71300 and a limiting strip 71400, the limiting frame 71300 is a hollow rectangular parallelepiped, one side of the limiting frame 71300 connected to the first assembling portion 71110 or the second assembling portion 71210 is a connecting edge 71310, and the connecting edge 71310 is disposed in an inclined or stepped manner to limit the position of the battery pack 72000 in the battery receiving space and prevent the battery pack 72000 from moving freely. The outer surface of the connecting edge 71310 is provided with a reinforcing strip 71312, so that the connecting strength of the connecting edge 71310 can be improved, and the service life of the battery pack fixing frame 71000 is prolonged.

In this embodiment, as shown in fig. 56, a through hole 71311 is formed at a connecting edge 71310 of the limiting frame 71300 of the first assembly portion 71110 on the left side, and the BMS 72110 is electrically connected to the battery pack 72000 through the through hole 71311, but the connection is not limited thereto as long as the purpose of connecting the BMS 72110 to the battery pack 72000 is satisfied. One or more through holes 71311 may be provided, and may be provided on one limiting frame 71300 or on multiple limiting frames 71300, which is not limited herein.

Referring to fig. 55-58, the position-limiting strip 71400 is connected to the position-limiting frame 71300, and may be disposed at the middle of the side surface of the position-limiting frame, and is configured in an arc shape, and the direction of the arc is the same as the opening direction of the first assembly portion 71110 or the second assembly portion 71210 where the arc is located, so that the position-limiting strip 71400 may be used to limit and fix the end of the battery pack 72000 in the battery receiving space, and the battery pack 72000 is prevented from sliding back and forth during movement or use to cause damage.

Referring to fig. 57 and 58, the first assembling portion 71110 is provided with a bracket protrusion 71111 and a first connecting portion 71120, the second assembling portion 71210 is provided with a bracket connecting hole 71211 and a second connecting portion 71220, and the bracket protrusion 71111, the bracket connecting hole 71211, the first connecting portion 71120 and the second connecting portion 71220 are all disposed on opposite surfaces of the first assembling portion 71110 and the second assembling portion 71210. The first assembly portion 71110 and the second assembly portion 71210 are both in a concave shape, wherein at least two bracket protrusions 71111 and at least two bracket connection holes 71211 are respectively arranged at the corners of the concave shape, such as the right corners, and the first connection portion 71120 and the second connection portion 71220 are arranged at the bottom of the concave shape or at the lower concave part of the concave shape; preferably, four bracket protruding blocks 71111 and four bracket connecting holes 71211 are provided, which are respectively located at four right angles of the "concave" shape, and the connection stability is the best.

Referring to fig. 55-58, the shape and size of the bracket protrusion 71111 are respectively matched with the shape and size of the bracket connection hole 71211, the bracket connection hole 71211 penetrates through the second assembly portion 71210 along the opening direction of the second assembly portion 71210, the bracket protrusion 71111 is provided with a bracket positioning hole 71112, the bracket connection hole 71211 is a circular hole, and the bracket protrusion 71111 is in a hollow cylindrical shape. In this embodiment, when the bracket protrusion 71111 is connected and fixed, the first bracket 71100 and the second bracket 71200 may be connected and fixed by placing the bracket protrusion 71111 in the bracket connection hole 71211, but the connection and the fixation of the first bracket 71100 and the second bracket 71200 are not limited thereto.

Referring to fig. 57 and 58, the first connecting portion 71120 includes a first protruding part 71121 and a first groove 71122, the second connecting portion 71220 includes a second protruding part 71221 and a second groove 71222, two second protruding parts 71221 are provided, and a gap is left between the two second protruding parts 71221. The first protrusion 71121 extends outward from the first assembling portion 71110 in the same direction as the opening of the first assembling portion 71110, and the first groove 71122 is recessed in the opposite direction to the first protrusion 71121; the second protrusion 71221 extends outwardly from the second assembly portion 71210 in the same direction as the opening of the second assembly portion 71210, and the recess of the second groove 71222 is in the opposite direction to the second protrusion 71221.

Referring to fig. 55-58, the first groove 71122 is provided with two grooves distributed on both sides of the first protruding part 71121, the second groove 71222 is also provided with two grooves distributed on both sides of the second protruding part 71221, the first groove 71122 and the second groove 71222 are both arranged in a "U" shape, when connected, the first connecting part 71120 and the second connecting part 71220 are inserted until the first protruding part 71121 is inserted into the gap between the two second protruding parts 71221, and the two second protruding parts 71221 are respectively arranged on both sides of the first protruding part 71121, in other words, the first protruding part 71121 and the two second protruding parts 71221 are in plug-fit with each other, that is, the two second protruding parts 71221 are parallel to each other, and the first protruding part 71121 protrudes between the two second protruding parts 71221. After the connection is completed, the open ends of the first groove 71122 and the second groove 71222 are assembled and matched with each other to form a U-shaped space (i.e., the handle mounting position) with the first connecting portion and the second connecting portion fixed to the middle portion for mounting the handle 73000.

As shown in fig. 55-58, the handle 73000 is disposed between the first connecting portion 71120 and the second connecting portion 71220, the handle 73000 is a hollow T-shaped structure, and includes a handle 73100 for grasping and a handle mounting portion 73200 extending downward from the bottom of the handle 73100 for fixing, when connected, the handle mounting portion 73200 is limitedly accommodated in the U-shaped space formed by the connection of the first recess 71122 and the second recess 71222, and at the same time, the connection of the first protruding piece 71121 and the second protruding piece 71221 makes the handle mounting portion 73200 limitedly accommodated in the U-shaped space, and keeps the handle 73100 exposed above the first connecting portion 71120 and the second connecting portion 71220 for moving, mounting or dismounting the battery pack assembly 70000.

As an alternative embodiment of the walking assembly.

Referring to fig. 2, 60-67, the mower further comprises a walking assembly 80000 for moving the mower; the walking assembly 80000 comprises: at least one road wheel 81000 (i.e., a driving wheel) located on the housing 10000; at least one universal wheel 82000 positioned on the housing 10000; wherein the road wheel 81000 comprises: a tire 81100; a hub 81200 for mounting a tire 81100; and a balancing weight 81300 installed at a side of the hub 81200 and coaxially disposed with the hub 81200.

Optionally, as shown in fig. 5-10, the traveling wheel 81000 includes a tire 81100, a hub 81200, and a weight 81300, the tire 81100 is sleeved on the hub 81200, the weight 81300 is mounted and fixed on the hub 81200 by a weight screw 81320, a hub protrusion 81264 is provided on an outer surface of the hub 81200, a groove 81110 corresponding to the hub protrusion 81264 is provided on an inner surface of the tire 81100, when mounting, the hub protrusion 81264 on the hub 81200 is placed in the groove 81110 on the inner surface of the tire 81100, and the hub protrusion 81264 is provided, so that on one hand, the mounting of the tire 81100 and the hub 81200 can be achieved, and on the other hand, the grip between the tire 81100 and the ground can be increased.

Referring to fig. 61 and 62, the weight block 81300 is a hollow circular ring structure, and the weight block 81300 is disposed coaxially with the hub 81200. Be provided with balancing weight through-hole 81310 on balancing weight 81300, this balancing weight through-hole 81310 runs through balancing weight 81300 along balancing weight 81300's the central axis direction, and in this embodiment, balancing weight through-hole 81310 is provided with 5 and follows same radius evenly distributed on balancing weight 81300 to usable balancing weight screw 81320 passes balancing weight through-hole 81310, with balancing weight 81300 fixed mounting on wheel hub 81200.

Referring to fig. 63, a plurality of anti-slip blocks 81120 are disposed on an outer surface of the tire 81100, and the anti-slip blocks 81120 protrude outward from the outer surface of the tire 81100 along a radial direction of the tire 81100, in this embodiment, the anti-slip blocks 81120 are in a trapezoidal structure, and an inner portion of the anti-slip blocks 81120 is recessed to form the groove 81110; that is, when the hub 81200 is assembled with the tire 81100, the hub protrusions 81264 snap into the grooves 81110, which can be used to support the cleats 81120 on the outer surface of the tire 81100 and also can eliminate the bead seats on the hub for retaining or mounting the tire.

In this embodiment, see fig. 63, a plurality of anti-slip blocks 81120 are distributed on the outer surface of tire 81100 at intervals, and in the axial direction of tire 81100, a plurality of anti-slip blocks 81120 are distributed in two rows, i.e. left and right rows, and the number of anti-slip blocks 81121 in the left row and the number of anti-slip blocks 81122 in the right row are the same and are uniformly distributed, and the difference mainly lies in: the intermediate position of two adjacent non-slip shoes of non-slip shoe 81122 and the left row of non-slip shoe 81121 aligns to realize that non-slip shoe 81121 and the right row of non-slip shoe 81122 are at mutual interval and staggered arrangement on the outer wall of tire 81100, form the dislocation set, can promote the frictional force of tire 81100 and ground, can also promote the land fertility of grabbing of tire 81100 simultaneously, prevent that tire 81100 from skidding in the driving process.

Referring to fig. 64-67, the hub 81200 includes a hub mounting portion 81210, a spoke 81220, and a rim 81260, the hub mounting portion 81210 is disposed at a center of the hub 81200 in a cylindrical shape, a hub mounting hole 81211 is formed in the hub mounting portion 81210, the hub mounting hole 81211 penetrates through the hub mounting portion 81210 along a central axis direction of the hub mounting portion 81210, and the weight block is provided with a plurality of weight block through holes 81310 corresponding to the hub mounting hole 81211, so that the weight block is mounted on the hub by weight block screws 81320. The spokes 81220 are used to connect the hub mounting portion 81210 to the rim 81260, the spokes 81220 are arranged in a circular ring shape, and the inner annular surface of the spokes 81220 is connected to the hub mounting portion 81210 and the outer annular surface is connected to the rim 81260. The spoke 81220 includes spliced pole 81230, reference column 81240 and strengthening rib 81250, is provided with hub connecting hole 81231 on the spliced pole 81230, and the extending direction of spliced pole 81230 and hub connecting hole 81231 all is the same with wheel hub 81200's central axis direction, and spliced pole 81230 is close to the outer ring edge of spoke 81220 and sets up, and spliced pole 81230 is cylindrical setting.

Referring to fig. 66, the reinforcing ribs 81250 include a main reinforcing rib 81251, an auxiliary reinforcing rib 81252, a first reinforcing rib 81253 and a second reinforcing rib 81254, the protruding directions of the main reinforcing rib 81251, the auxiliary reinforcing rib 81252, the first reinforcing rib 81253 and the second reinforcing rib 81254 are the same as the extending direction of the connecting column 81230, the main reinforcing rib 81251 and the auxiliary reinforcing rib 81252 are distributed in the radial direction of the spoke 81220, the protruding heights of the main reinforcing rib 81251 and the auxiliary reinforcing rib 81252 are gradually reduced from one side of the hub mounting portion 81210 to one side of the rim 81260, and the protruding heights are reduced to a certain height to extend outwards at the same height, so that the structural strength of the hub 81200 is increased. Of course, in other embodiments, the protruding heights of the main bead 81251 and the sub bead 81252 may be set according to practical situations, and are not limited herein.

Referring to fig. 66, the spokes 81220 are connected to the inner and outer annular surfaces by primary ribs 81251 and secondary ribs 81252, the primary ribs 81251 are connected to the connecting column 81230 at the outer annular edge, and the secondary ribs 81252 are distributed on the bisector of the two primary ribs 81251. The first reinforcing rib 81253 and the second reinforcing rib 81254 are circular and are arranged coaxially with the spoke 81220, the first reinforcing rib 81253 is positioned at the position when the protruding heights of the main reinforcing rib 81251 and the auxiliary reinforcing rib 81252 tend to be stable, and the two adjacent connecting columns 81230 are connected through the second reinforcing rib 81254.

See fig. 66, a support column 81255 is arranged on the second reinforcing rib 81254, the support columns 81255 are arranged in a right triangle, two right-angle sides are respectively attached to the bottom of the spoke 81220 and the second reinforcing rib 81254, support columns 81255 are arranged on the inner side and the outer side of the second reinforcing rib 81254, two support columns 81255 on the inner side and the outer side are symmetrically arranged and combined to form a pair, two pairs of support columns 81255 are adjacently arranged to form a group of support columns 81255, preferably, five groups of support columns 81255 are arranged on the spoke 81220, and the five groups of support columns 81255 are uniformly distributed on the second reinforcing rib 81254.

Referring to fig. 66, spoke positioning holes 81241 are further formed in the spoke 81220, and the extending direction of the spoke positioning holes 81241 is the same as the extending direction of the connecting column 81230. In this embodiment, spoke 81220 is last still to be provided with reference column 81240, and spoke locating hole 81241 sets up on reference column 81240 and from the top undercut formation of positioning column 81240, and reference column 81240 and spoke locating hole 81241 all set up to 5, and the shape of reference column 81240 is cylindrical, and spoke locating hole 81241 also is circular, but should not use this as the limit, as long as can fix a position balancing weight 81300 on wheel hub 81200.

Referring to fig. 67, hub tabs 81264 are provided on the outer surface of rim 81260, rim 81260 further includes outer serrated surface 81261, inner serrated surface 81263 and connecting ribs 81263, and connecting ribs 81263 are connected at one end to rim 81260 and at the other end to connecting post 81230 to increase the strength of the connection between spoke 81220 and rim 81260. The hub protrusion 81264 is trapezoidal in shape, and the hub protrusion 81264 on the hub 81200 is received in the groove 81110 on the inner surface of the tire 81100 when being installed, so that the stability and the air tightness between the tire 81100 and the hub 81200 are improved. The outer serrated surface 81261 is uniformly distributed on the outer surface of the rim 81260, the inner serrated surface 81263 is uniformly distributed on the inner surface of the rim 81260, the outer serrated surface 81261 and the inner serrated surface 81263 are arranged in a triangular prism shape, when the tire is installed, the outer serrated surface 81261 is in contact with the inner surface of the tire 81100, the friction force between the outer serrated surface 81261 and the inner surface of the tire 81100 is increased, and the ground holding force of the hub 81200 is improved.

Therefore, the hub 81200 is connected with the tire 81100 through the matching of the hub bump 81264 and the groove 81110, the balancing weight 81300 can be fixedly installed on the hub 81200 through the matching of the hub installation hole 81211 and the balancing weight screw 81320, the hub 81200 is installed at the bottom of the casing 10000, the power transmission assembly can transmit force to the traveling wheel 81000, and the traveling wheel 81000 is acted by force to rotate, so that the mower travels forwards or backwards.

In this embodiment, as shown in fig. 60, in the central axis direction of the hub 81200, the section width of the weight 81300 is 1/6-2/6 of the section width of the tire 81100; in the radial direction perpendicular to the central axis direction of the hub 81200, the inner diameter of the balancing weight 81300 is 3/10-4/10 of the tire section height, and the outer diameter of the balancing weight 81300 is 5/10-7/10 of the tire section height; the weight of the balancing weight 81300 is 3/5-4/5 of the whole weight of the road wheel, but not limited to this, as long as the purpose of increasing the weight of the road wheel 81000 and preventing the tire 81100 from skidding can be achieved. Preferably, the section width of the weight 81300 is 1/6 of the section width of the tire in the central axis direction of the hub 81200; in the radial direction perpendicular to the central axis direction of the hub 81200, the inner diameter of the counterweight 81300 is 3/10 of the section height of the tire, and the outer diameter thereof is 6/10 of the section height of the tire; the mass of the balancing weight 81300 is 3/5 of the overall mass of the road wheel.

As shown in fig. 2, 68-78, the road wheel 81000 further includes: a wheel cover 81400 located on the hub 81200; and a wheel cover garnish 81500 detachably mounted on the wheel cover 81400.

Alternatively, see fig. 68, the wheel cover 81400 is removably attached to the hub 81200; and the wheel cover decoration 81500 is clamped between the wheel hub 81200 and the wheel cover 81400. In replacing the wheel cover trim 81500, the wheel cover 81400 can be removed from the hub 81200, a new wheel cover trim 81500 can be attached to the wheel cover 81400, and the wheel cover 81400 can be attached to the hub 81200. Can realize the problem of matching colors of walking wheel change through changing the wheel cap gadget alone.

As an implementable assembly of the wheel cover trim.

As shown in fig. 69 to 71, the wheel covering trim 81500 includes: a middle portion 81510, a number of tabs 81520 extending circumferentially outward from the middle portion 81510; and the tab 81520 nests within a corresponding wheel cover mounting aperture 81410.

Optionally, referring to fig. 69, the middle portion 81510 is a ring and is coaxially disposed with the hub 81200 and the wheel cover 81400. As seen in fig. 71, the protrusion 81520 includes: a decorative block 81521 fitted with the wheel cover mounting hole 81410; the rib 81522 is positioned on one side of the decorative block 81521 and protrudes out of the decorative block 81521; and when the protrusion 81520 is nested in the corresponding wheel cover mounting hole 81410, the decoration block 81521 is clamped in the corresponding wheel cover mounting hole 81410 to be exposed from the outer side of the wheel cover 81400, and the rib 81522 is abutted against the periphery of the wheel cover mounting hole 81410.

Specifically, as shown in fig. 70 and 71, the back surface (i.e., the side close to the hub) of the wheel cover decoration is planar, and the front surface (i.e., the side close to the wheel cover) of the wheel cover decoration protrudes through the decoration block 81521 so as to be clamped into the wheel cover installation hole. Referring to fig. 71, in order to reduce the weight of the decoration block, a weight reduction groove 81523 is formed in the back surface of the decoration block 81521; and the front of decorating piece 81521 is equipped with the color matching groove, and the tank bottom of color matching groove is equipped with corresponding look board 81524, can make the look board cave in the color matching groove, avoids the look board to be worn out and fades, plays the effect of protection look board. Of course, the color plate 81524 can be designed separately or integrally with the color matching groove to ensure consistent color.

Referring to fig. 72 and 73, a plurality of wheel cover mounting holes 81410 are formed in the wheel cover 81400 in the circumferential direction to nest the protrusions 81520 of the wheel cover trim 81500. An inner protrusion 81420 (located on the inner side of the wheel cover 81400, i.e., on the side close to the wheel cover trim) and an outer groove 81430 (located on the outer side of the wheel cover 81400, i.e., on the side away from the wheel cover trim in fig. 7) are further designed at the interval between the wheel cover mounting holes 81410, and a clip 81440 is arranged at the edge of each inner protrusion 81420 to be clamped with the wheel hub 81200. Specifically, the inner protrusion 81420 and the outer groove 81430 can be designed in the same shape structure or in different shapes and structures, but the inner protrusion 81420 and the outer groove 81430 cannot form a through hole, so that the wheel cover is covered on the outer side of the travelling wheel, and the sealing performance of the inner structure of the travelling wheel is guaranteed.

Referring to fig. 74-76, the inner side (side near the housing) of the hub 81200 is planar to accommodate the overall assembly requirements of the mower; a wheel cover mounting position 81270 is arranged on the outer side (the side close to the wheel cover ornament) of the wheel hub 81200 and is used for mounting a wheel cover; a plurality of ribs 81250 are provided in the wheel cover mounting locations 81270 to support the wheel hub.

Further, as shown in fig. 77, a plurality of hub engaging grooves 81271 are disposed in the wheel cover mounting position 81270, and each hub engaging groove 81271 is uniformly distributed on the circumference of the wheel hub 81200 to form an engaging member with the engaging head 81440 on the wheel cover 81400, so that the wheel cover is detachably mounted on the wheel hub through the engaging member.

In addition, as shown in fig. 78, the wheel cover 81400 and the wheel hub 81200 are positioned and installed by at least two positioning members which are arranged asymmetrically; wherein the positioning member comprises: a positioning lever 81450 located on the circumference of the wheel cover 81400; and the hub positioning holes 81280 are located on the circumference of the hub 81200, are matched with the positioning rods 81450, are clamped into the corresponding hub positioning holes 81280 through the positioning rods 81450, position the wheel cover 81400 and the hub 81200, and are assembled.

In summary, the control assembly, such as but not limited to a single chip microcomputer or a processor module, can control each mechanism to perform different working processes through a corresponding driving circuit. For example, the control assembly controls the battery pack assembly to provide power to the mower via the power management system. For another example, the airtightness of the machine shell can be detected through the airtight nozzle on the machine shell, and then the air filter cover is replaced, so that the air pressure balance in the machine shell is maintained in the working process of the mower, and the normal working state of the mower is ensured. For another example, the height of the cutter head is adjusted independently or jointly through a cutter head height adjusting assembly and a cutter head auxiliary height adjusting assembly in the cutting mechanism, then the prime motor is controlled to rotate through the control assembly, the cutter head is driven to rotate, and mowing action is carried out through the blades. For another example, in the working or walking process of the mower, the relative displacement of the movable upper cover and the machine shell in the vertical direction is detected through a suspension lifting detection assembly in the detection mechanism, so that when the relative displacement of the movable upper cover and the machine shell in the vertical direction occurs, a current signal change is formed and is transmitted to the control module or a current sensor connected with the control module, and the working state of the mower (such as the mowing stopping action or the walking stopping action) is further regulated and controlled; in the working or walking process of the mower, the relative displacement of the movable upper cover and the machine shell in the horizontal direction is detected through a collision detection assembly in the detection mechanism, so that when the relative displacement of the movable upper cover and the machine shell in the horizontal direction occurs, a current signal change is formed and is transmitted to the control module or a current sensor connected with the control module, and the working state (such as mowing stopping or walking stopping) of the mower is further regulated and controlled; hang and promote the independent setting of determine module and collision determine module, detect the relative displacement of activity upper cover and casing in horizontal direction, vertical direction respectively, can effectively reduce the condition of spurious triggering. For another example, when the movable top cover and the housing generate relative displacement in the horizontal direction, the vibration is reduced by the deformation elastic force generated by the damping component between the housing and the movable top cover. For another example, when the movable upper cover and the housing shell generate relative displacement in the vertical direction, the movable upper cover is prevented from pressing down the housing shell or hanging and lifting the detection component through the supporting piece between the housing shell and the movable upper cover, and the phenomenon of false triggering is prevented. For another example, the wheel cover ornaments can be detachably replaced on the walking wheels, so that the problem of color matching of the walking wheels can be solved. For another example, the walking wheels can be disassembled to replace the balancing weights, and the ground grabbing force of the walking wheels can be adjusted by setting the parameters of the balancing weights. In the scheme, the working processes can be implemented independently or in a combined manner, so that the mower can meet different functions or design requirements.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.

Claims

1. A lawn mower, comprising:

a housing; the movable upper cover is positioned above the shell; the control assembly is positioned in the shell; the cutting mechanism is positioned on the shell; and the control assembly is suitable for controlling the cutting mechanism to work.

2. The mower of claim 1,

the cutting mechanism includes: the cutter head height adjusting assembly is arranged on the shell and used for adjusting the height of the cutter head; the prime motor is positioned on the cutter disc height-adjusting assembly and is used for driving the cutter disc to rotate; the cutter head auxiliary height-adjusting assembly is fixedly arranged on an output shaft of the prime motor; the cutter head is positioned at the bottom of the auxiliary height-adjusting component of the cutter head and used for mounting the blades; and the cutter disc height adjusting assembly and the cutter disc auxiliary height adjusting assembly are suitable for adjusting the height of the cutter disc independently or jointly.

3. The mower of claim 2,

the cutter head heightening assembly comprises: the cutter head height adjusting bracket is used for fixing a prime motor; the cutter head connecting part is fixed at the bottom of the cutter head height-adjusting support and is used for installing a cutter head driven by a prime motor; and the adjusting part is fixed at the top of the cutter disc height adjusting bracket and drives the cutter disc to move up and down through the cutter disc height adjusting bracket so as to adjust the height of the cutter disc.

4. The mower of claim 2,

supplementary height-adjusting subassembly of blade disc includes: at least two cutter head connectors are movably sleeved from inside to outside in sequence; the first cutter head connector is positioned at the innermost side and fixedly arranged on an output shaft of the prime mover; the second cutter head connector is positioned on the outermost side and used for connecting the cutter head; and the adjusting piece is used for driving the second cutter head connector to move along the surface of the first cutter head connector so as to adjust the height of the cutter head.

5. The mower of claim 4,

at least one third cutter head connector is arranged between the first cutter head connector and the second cutter head connector; the third cutter head connector includes: a hollow third body; at least one raised third guide part which is positioned at the inner side of the third body and is matched with the guide groove adjacent to the inner side of the third body; and at least one third guide groove which is positioned at the outer side of the third body and is matched with the guide part adjacent to the outer side of the third body.

6. The mower of claim 1,

the mower also comprises a detection mechanism for detecting the relative displacement of the movable upper cover and the machine shell;

the detection mechanism comprises: at least one suspension lifting detection assembly positioned on the machine shell to detect the relative displacement of the movable upper cover and the machine shell in the vertical direction; at least one collision detection component, which is positioned on the machine shell and is used for detecting the relative displacement of the movable upper cover and the machine shell in the horizontal direction; and the control component is suitable for adjusting the working state of the mower according to each detection signal.

7. The mower of claim 6,

the suspended lift detection assembly comprises: the suspension ball head is fixed on a movable upper cover of the mower; the lifting limiting part is separately arranged below the suspension ball head; the two ends of the suspension spring are respectively fixedly connected with the suspension ball head and the lifting limiting piece; the signal trigger module is positioned at the bottom of the lifting limiting part; and when the movable upper cover and the shell generate relative displacement in the vertical direction, the suspension ball head pulls the lifting limiting piece to move upwards through the suspension spring, and the signal triggering module is induced to send a detection signal to the control assembly.

8. The mower of claim 6,

the collision detecting assembly includes: the second magnetic block is positioned on the movable upper cover; the second reed switch is positioned on the shell and below the second magnetic block; the second lifting detection plate is positioned between the second magnetic block and the second dry spring; when the movable upper cover and the shell generate relative displacement in the horizontal direction, the second magnetic block is close to or far away from the second reed pipe, and the second reed pipe is opened or closed, so that a current signal on the second lifting detection plate is changed; and the second lifting detection plate is electrically connected with the control assembly so as to send the current signal to the control assembly as a detection signal.

9. The mower of claim 1,

the housing includes: an internally sealed housing; a functional hole formed on the shell and communicating the inside and the outside of the shell; and a function module selectively detachably installed at the function hole to detect a sealing state of the case or maintain air pressure balance inside and outside the case.

10. The mower of claim 9,

the functional module is an air filter cover to balance air pressure inside and outside the shell of the mower in a working state; the air filter cover comprises: a base adapted to be mounted at the functional hole; an air filter cover mounting part extending outward from the base part; and the air filter cover mounting part is fixed with the shell through a fastening piece.

11. The mower of claim 9,

the functional module is an airtight charging nozzle and is matched with a barometer to detect the airtightness of the interior of the shell of the mower in a non-working state; the airtight nozzle includes: a body part installed at the functional hole; an assembling portion extending outward from the main body portion.

12. The mower of claim 1,

the mower also comprises a damping component positioned between the movable upper cover and the machine shell;

the shock-absorbing assembly includes: a shock-absorbing member having a hollow portion therein; a connector adapted to pass through the hollow portion to mount the damping element between the housing and the movable upper cover of the mower; when the movable upper cover and the machine shell generate relative displacement in the horizontal direction, the shock absorption element is extruded to generate deformation elasticity.

13. The mower of claim 12,

the damping element is columnar, one end of the damping element is closed, and a damping element mounting hole with the diameter smaller than that of the hollow part is formed in the damping element mounting hole; the connecting member is adapted to be inserted into or passed out of the hollow portion of the suspension element from the suspension element mounting hole, i.e., a space for deformation of the suspension element is left between the suspension element and the connecting member.

14. The mower of claim 1,

the mower further comprises at least one support member positioned between the housing and the movable upper cover;

the support member is adapted to support the movable upper cover to prevent it from pressing down the cabinet.

15. The mower of claim 14,

the support member includes: a pillar; at least one reinforcing sheet extending outwardly from the pillar; the number of the reinforcing sheets is four, and the reinforcing sheets are uniformly distributed on the outer side of the table column; and the reinforcing sheets are distributed in a cross shape to form a cross bone structure with the table posts.

16. The mower of claim 1,

the lawn mower further comprises a battery pack assembly for providing electrical energy;

the battery pack assembly includes: at least one battery pack holder; the first battery pack and the second battery pack are oppositely arranged on each battery pack fixing frame.

17. The mower of claim 16,

the first battery pack includes: a first battery, a DMS board, a BMS system and a first terminal; the second battery pack comprises a second battery and a second terminal; and the first terminal and the second terminal are electrically connected through a connecting wire.

18. The mower of claim 16,

the battery pack fixing frame comprises: two brackets, namely a first bracket and a second bracket; the lifting handle is positioned at the joint of the two brackets; wherein two supports all include: the assembling part and accommodating parts arranged at two sides of the assembling part; the assembling parts of the two brackets are suitable for joint assembly; and the accommodating parts of the two brackets are arranged separately and oppositely to form a battery accommodating space for accommodating the battery pack.

19. The mower of claim 1,

the mower also comprises a walking assembly for driving the mower to move;

the walking assembly comprises: at least one traveling wheel positioned on the housing; and the at least one universal wheel is positioned on the shell.

20. The mower of claim 19,

the walking wheel includes: a tire; a hub for mounting a tire; the balancing weight is installed on the side face of the hub and is coaxial with the hub;

the walking wheel still includes: a wheel cover located on the wheel hub; and a wheel cover decoration piece detachably mounted on the wheel cover.