CN212164219U

CN212164219U - Mowing machine

Info

Publication number: CN212164219U
Application number: CN201921505684.5U
Authority: CN
Inventors: 冯春亭; 徐锋; 陈亚明; 冯增辉; 姚远; 吴迪
Original assignee: FJ Dynamics Technology Co Ltd
Current assignee: FJ Dynamics Technology Co Ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-12-18
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a mowing machine, which comprises a machine body and a mowing mechanism, wherein the machine body comprises two driving wheels, two driven wheels, a power mechanism and a frame, the power mechanism comprises a power supply device and two motors connected with the power supply device, wherein the power supply device is arranged on the frame and extends from the rear end part of the frame to the front end part, wherein each of the motors is symmetrically disposed on both sides of the rear end portion of the frame, respectively, and each of the driving wheels is drivably disposed on each of the motors, respectively, and each of the driven wheels is symmetrically arranged on two sides of the front end part of the frame respectively, to allow each of said drive wheels and each of said driven wheels to cooperate to support said frame to a predetermined height, wherein the mowing mechanism is provided to the housing and is held in a lower space of the housing.

Description

Mowing machine

Technical Field

The utility model relates to a mowing equipment field, in particular to mowing machinery.

Background

A lawn mower, such as a riding lawn mower, is an automated mechanical tool for trimming a lawn that can replace a human being to reduce manpower and labor costs, and allows a driver to operate in a riding manner to trim the lawn. The present lawn mower is configured with a lithium battery pack to drive the lawn mower by electric energy, the lithium battery pack being a purchased common part including a waterproof case and a battery pack placed inside the waterproof case, a BMS control system for controlling the charge and discharge state of the lithium battery pack, and a peripheral protection relay circuit, etc. This lithium cell is including being a general piece, and wherein the appearance of this waterproof case of this lithium cell package is square structure, and this group battery, this BMS control system of this waterproof case inside of this lithium cell package arrange compactly, and each structure is in the inside of this waterproof case sealed with controlling or the mode stack that arranges from top to bottom, and this kind of structure of this lithium cell package leads to the heat dispersion of this lithium cell package relatively poor, and brings a great deal of trouble for the maintenance of this lithium cell package. In addition, in order to ensure the cruising ability of the lawn mower, the volume of the lithium battery pack is relatively large, so that the lithium battery pack can only be arranged at the rear part of the lawn mower, the lawn mower has the bad phenomena of light front and heavy rear, and if the lawn mower climbs a slope in the process of trimming a lawn by using the lawn mower, the lawn mower can be tilted backwards, so that the safety hazard of the lawn mower exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mowing machine, wherein mowing machine provides a power supply unit and a frame, power supply unit is set up certainly the preceding tip direction of the back tip of frame is extended, so can be through the adjustment the mode of mowing machine's counter weight is guaranteed mowing machine's focus is located mowing machine's middle part.

An object of the utility model is to provide a mowing machine, wherein power supply unit by the tiling set up in the frame, and power supply unit is set up certainly the rear end of frame extends to the middle part, so can guarantee mowing machine's focus is located mowing machine's middle part.

An object of the utility model is to provide a mowing machine, wherein a battery casing of power supply unit includes a first shell and a second shell, the height dimension of first shell is greater than the height dimension of second shell makes the battery casing form a stair-shaped structure, wherein first shell is located the rear end of frame, and the second shell extends to the frame with be installed in space between the seat of frame, a chargeable electric core of power supply unit is preferably installed in the second shell, guarantee so that mowing machine's focus is located mowing machine's middle part.

An object of the utility model is to provide a mowing machine, wherein power supply unit first shell can allow to be installed additional chargeable electric core, in order to improve mowing machine's duration.

An object of the utility model is to provide a mowing machine, wherein power supply unit provides a heating element, heating element is held in battery housing to be arranged in the environment of the end is handed over to the temperature to improve fast power supply unit's temperature, and guarantee power supply unit's performance.

An object of the utility model is to provide a mowing machine, wherein mowing machine provides one and controls the mechanism, it can control to control the mechanism mowing machine's walking direction and walking speed to the driver conveniently controls the lawn mower.

An object of the utility model is to provide a mowing machine, wherein control the mechanism and can control between a parking state and a driving state mowing machine's operating condition. In other words, the control mechanism is an integrated mechanism integrating speed control, direction control and working state control to simplify the control of the mowing machine.

An object of the utility model is to provide a mowing machine, wherein mowing machine provides an guiding mechanism and a mechanism of mowing, heightening mechanism set up in the frame, mowing mechanism set up drivably in heightening mechanism, wherein heightening mechanism can adjust automatically mowing mechanism with the relative position of frame, in order to adjust mowing machine's terrain clearance.

An object of the utility model is to provide a mowing machine, wherein is utilizing mowing machine prunes the in-process on lawn, if mowing mechanism touches obstacles such as stone, heighten the mechanism and allow mowing mechanism rises automatically when receiving the effort of obstacle such as stone and avoids mowing mechanism is strikeed and is damaged by obstacles such as stone.

According to an aspect of the utility model, the utility model provides a mowing machine, it includes a fuselage and a mechanism of mowing, wherein the fuselage includes:

two driving wheels;

two driven wheels;

the power mechanism comprises a power supply device and two motors connected with the power supply device; and

a frame, wherein said frame has a front end portion and a rear end portion corresponding to said front end portion, wherein said power supply unit is provided to said frame and extends from said rear end portion of said frame toward said front end portion, wherein each of said motors is symmetrically provided to both sides of said rear end portion of said frame, each of said driving wheels is drivably provided to each of said motors, and each of said driven wheels is symmetrically provided to both sides of said front end portion of said frame, respectively, to allow each of said driving wheels and each of said driven wheels to cooperate with each other to support said frame to a predetermined height, wherein said mowing mechanism is provided to said frame and is held in a lower space of said frame.

According to an embodiment of the present invention, the power supply device includes a battery housing, and a rechargeable battery cell and a battery cell manager accommodated in the battery housing, the rechargeable battery cell and each of the motors are respectively connected to the battery cell manager, so as to allow the battery cell manager to manage a state in which the rechargeable battery cell supplies power to each of the motors.

According to an embodiment of the present invention, the battery case includes a first casing and a second casing which are square, a height dimension of the first casing is greater than a height dimension of the second casing, wherein the first casing is disposed in the rear end portion of the frame, and the second casing is disposed in the middle portion of the frame.

According to an embodiment of the present invention, the power supply device includes a heating element, which is accommodated inside the battery case.

According to an embodiment of the present invention, the fuselage further comprises a seat, the seat being disposed in a middle portion of the frame, wherein the first housing is held between the frame and the seat.

According to an embodiment of the present invention, the lawn mower further comprises a control mechanism, wherein the control mechanism comprises at least one control rod and at least one control body, wherein the control rod has a high end and a low end corresponding to the high end, wherein the control body comprises a mounting seat and a pivot seat rotatably disposed on the mounting seat, the mounting seat is disposed on the machine body, the low end of the control rod is mounted on the pivot seat, wherein when the high end of the control rod swings back and forth, the low end of the control rod drives the pivot seat for rotation of the mounting seat.

According to an embodiment of the present invention, the lawn mowing machine further comprises an elevation mechanism, wherein the elevation mechanism comprises an electric driving unit and an adjusting unit, the electric driving unit is disposed in the machine body the frame and connected to the power supply device, the adjusting unit is disposed in the machine body the frame and drivably connected to the electric driving unit, wherein the mowing mechanism is disposed in the adjusting unit to adjustably maintain the mowing mechanism in the lower space of the frame of the machine body by the elevation mechanism.

According to the utility model discloses an embodiment, control the mechanism and include two control rod and two control the main part, two control the main part the mount pad respectively by mutual symmetry set up in the fuselage the both sides of frame, so that two control the mutual symmetry of rod.

According to an embodiment of the present invention, the mounting base has a pivoting space and an upper opening communicating with the pivoting space, the pivoting base is held at the pivoting space of the mounting base, and the lower end portion of the operating lever extends to the pivoting space through the upper opening of the mounting base.

According to an embodiment of the present invention, the control body further includes a stand switch, the stand switch is provided in the outside of the mounting seat, wherein the low end portion of the control lever is rotatably installed in the pivot seat, so that the low end portion of the control lever contacts the stand switch after swinging to the outside of the mounting seat.

According to an embodiment of the present invention, the outside of mount pad has a location breach, the location breach intercommunication the pivot space with the upper portion opening, the station switch correspond to the mount pad the location breach, wherein the control lever the low tip can be located the mount pad the location breach.

According to an embodiment of the present invention, the pivot seat has a holding groove, a holding channel and a swinging channel, the holding channel in the upper portion of the pivot seat communicates the holding groove, and the holding channel corresponds to the upper portion opening of the mount seat, the swinging channel in the outside of the pivot seat communicates the holding groove, wherein the low end portion of the lever passes through the pivot seat the holding channel extends to the holding groove, and the low end portion of the lever can enter and be held in the swinging channel.

According to an embodiment of the utility model, control the main part and further include a front side rotation stopper and a rear side rotation stopper, the front side rotation stopper with the rear side rotation stopper respectively set up in mount pad and protrusion in pivot space, and the front side rotation stopper is in the front side of pivot seat corresponds to the pivot seat, in order to allow the front side rotation stopper is through contradicting the mode restriction of the front side of pivot seat the rotation range of pivot seat, with the rear side rotation stopper is in the rear side of pivot seat corresponds to the pivot seat, in order to allow the rear side rotation stopper is through contradicting the mode restriction of the rear side of pivot seat the rotation range of pivot seat.

According to one embodiment of the present invention, the pivot base further comprises a front extension wall and a rear extension wall, the front extension wall extends from a lower end of the front side wall to a front side, the rear extension wall extends from a lower end of the rear side wall to a rear side, wherein the manipulation body further comprises a front side rotation stopper and a rear side rotation stopper, the front side rotation stopper and the rear side rotation stopper are respectively provided to the mount and protrude from the pivot space, and the front side rotation stopper corresponds to the front extension wall to allow the front side rotation stopper to limit a rotation amplitude of the pivot base by abutting against the front extension wall, and the rear side rotation stopper corresponds to the rear extension wall, to allow the rear rotation limiter to limit the rotation amplitude of the pivot mount by abutting against the rear extension wall.

According to the utility model discloses an embodiment, control the main part and include a pivot, pivot seat be set up in the middle part of pivot, the both ends of pivot respectively rotationally set up in the mount pad.

According to the utility model discloses an embodiment, control the main part and include an angle sensor, angle sensor set up in the mount pad with be connected in the pivot.

According to an embodiment of the present invention, the manipulation body further includes at least two hydraulic buffers, each of the hydraulic buffers is respectively disposed at the mount base, and a lower end of at least one of the hydraulic buffers extends to the front extension wall, and a lower end of at least one of the hydraulic buffers extends to the rear extension wall.

According to an embodiment of the present invention, the adjusting unit comprises a front rotating shaft, a rear rotating shaft, two front mounting bodies, two rear mounting bodies, two front pivoting arms, two rear pivoting arms, two front pushing arms, two rear pushing arms, and two connecting arms, wherein each front mounting body is symmetrically disposed on the body, two ends of the front rotating shaft are rotatably mounted on each front mounting body, respectively, wherein each rear mounting body is symmetrically disposed on the body, two ends of the rear rotating shaft are rotatably mounted on each rear mounting body, respectively, and are drivably connected to the electric driving unit, wherein a middle portion of each front pivoting arm is disposed on two ends of the front rotating shaft, respectively, a middle portion of each rear pivoting arm is disposed on two ends of the rear rotating shaft, respectively, wherein the upper end portion of each said pushing and extending front arm is rotatably mounted at the outer end of the front arm of each said pivoting front arm, and the lower end portion of each said pushing and extending front arm is mounted at the grass cutting mechanism, wherein the upper end portion of each said pushing and extending rear arm is rotatably mounted at the outer end of the rear arm of each said pivoting rear arm, and the lower end portion of each said pushing and extending rear arm is mounted at the grass cutting mechanism, wherein the two ends of each said connecting arm are rotatably mounted at the inner end of the front arm of said pivoting front arm and the inner end of the rear arm of said pivoting rear arm.

According to an embodiment of the invention, the pivoting forearm has a first forearm extension and a second forearm extension, the extension of the first forearm extension and the extension of the second forearm extension having an acute included angle to form a forearm opening between the first forearm extension and the second forearm extension, the middle part of the pivoting forearm being fixedly mounted at the end of the front spindle so that the first forearm extension forms the inner forearm end and the second forearm extension forms the outer forearm end and the forearm opening of the pivoting forearm faces downwards, wherein the pivoting rear arm has a first rear arm extension and a second rear arm extension, the extension of the first rear arm extension and the extension of the second rear arm extension having an acute included angle, so as to form a rear arm opening between the first rear arm extension and the second rear arm extension, the middle portion of the pivoting rear arm being fixedly mounted to the end of the rear spindle so that the first rear arm extension forms the rear arm inner end and the second rear arm extension forms the rear arm outer end, and the rear arm opening of the pivoting rear arm faces upward.

According to an embodiment of the present invention, the front mounting body has a first through hole, the two ends of the front rotating shaft are respectively passed through each of the first through holes of the front mounting body extend to each of the outer sides of the front mounting body to allow the middle portion of the pivoting front arm to be fixedly mounted on the end portion of the front rotating shaft outside of the front mounting body, wherein the rear mounting body has a second through hole, the two ends of the rear rotating shaft are respectively passed through each of the second through holes of the rear mounting body extend to each of the outer sides of the rear mounting body to allow the middle portion of the pivoting rear arm to be fixedly mounted on the end portion of the rear rotating shaft outside of the rear mounting body.

According to an embodiment of the invention, the pushing and extending forearm has a slideway, the outer forearm end of the pivoting forearm being slidably mounted in the slideway of the pushing and extending forearm.

According to an embodiment of the invention, the lower end of the push-stretch front arm is rotatably mounted to the mowing mechanism, and the lower end of the push-stretch rear arm is rotatably mounted to the mowing mechanism.

According to an embodiment of the present invention, the length dimension of the pushing and extending front arm is greater than the length dimension of the pushing and extending rear arm.

Drawings

Fig. 1 is a perspective view of a mowing machine according to a preferred embodiment of the present invention.

Fig. 2 is an exploded view of the lawn mower according to the above preferred embodiment of the present invention.

Fig. 3 is a schematic perspective view of a power supply device of the mowing machine according to the preferred embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of the power supply device of the lawn mower according to the above preferred embodiment of the present invention.

Fig. 5 is a schematic circuit diagram of the power supply device of the mowing machine according to the above preferred embodiment of the present invention.

Fig. 6 is a perspective view of an operation mechanism of the mowing machine according to the preferred embodiment of the present invention.

Fig. 7 is an exploded view of the control mechanism of the lawn mower according to the above preferred embodiment of the present invention.

Fig. 8A to 8C are schematic cross-sectional views of the mower according to the above preferred embodiment of the present invention in different states of the control mechanism.

Fig. 9 is a perspective view of an elevation mechanism of the mowing machine according to the preferred embodiment of the present invention.

Fig. 10 is an exploded view of the height adjusting mechanism of the lawn mower according to the above preferred embodiment of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1 to 10 of the drawings of the present application, a lawn mower according to a preferred embodiment of the present invention is disclosed and explained in the following description, wherein the lawn mower includes a main body 10 and a mowing mechanism 20 disposed in a lower space of the main body 10.

Specifically, the body 10 includes a frame 11, a power mechanism 12, and a set of wheels 13. The frame 11 has a front end 111 and a rear end 112 corresponding to the front end 111. The power mechanism 12 includes a power supply device 121 and two motors 122 connected to the power supply device 121, wherein the power supply device 121 is disposed on the frame 11, the power supply device 121 extends from the rear end 112 of the frame 11 to the front end 111, and each of the motors 122 is symmetrically disposed on two sides of the rear end 112 of the frame 11. One set of the wheels 13 includes two driving wheels 131 and two driven wheels 132, wherein each driving wheel 131 is respectively drivably provided to each motor 122, so that the two driving wheels 131 are symmetrically provided to both sides of the rear end portion 112 of the frame 11, and each driven wheel 132 is symmetrically provided to both sides of the front end portion 111 of the frame 11, so that the two driving wheels 131 and the two driven wheels 132 are used to support the frame 11 to a predetermined height to provide a lower space for the frame 11. The mowing mechanism 20 is disposed in the lower space of the housing 11 of the body 10, so that the mowing mechanism 20 held in the lower space of the housing 11 can mow a lawn when the power supply unit 121 supplies power to each of the motors 122 to drive the mowing machine to walk on the lawn by driving each of the driving wheels 131.

More specifically, the power supply device 121 includes a battery casing 1211, and a rechargeable cell 1212 and a cell manager 1213 accommodated in the battery casing 1211, where the rechargeable cell 1212 and each of the motors 122 are respectively connected to the cell manager 1213, and each of the motors 122 is respectively electrically connected to the rechargeable cell 1212, so as to allow the cell manager 1213 to manage a state in which the rechargeable cell 1212 supplies power to each of the motors 122. It is worth mentioning that the type of the cell manager 1213 is not limited in the lawn mower of the present invention, for example, the cell manager 1213 may be a BMS (BATTERY MANAGEMENT SYSTEM) BATTERY management system.

It is understood that when the cell manager 1213 allows the rechargeable cells 1212 to supply power to each of the motors 122, each of the motors 122 can drive each of the driving wheels 131 to rotate to drive the lawn mower to walk, such as forward, backward, and turn. That is, the cell manager 1213 can manage the discharge state of the rechargeable cells 1212. It is understood that the cell manager 1213 may also manage the charge state of the rechargeable cells 1212.

It is worth mentioning that the type of the rechargeable battery 1212 of the power supply device 121 is not limited in the lawn mower of the present invention, for example, the rechargeable battery 1212 may be a lithium iron phosphate battery.

It is also worth mentioning that the power supply device 121 may further include a heat-conducting element surrounding the rechargeable battery cell 1212, so as to improve the heat dissipation performance of the power supply device 121. The power supply unit 121 may further include a temperature detecting element and a current voltage signal collecting element, wherein the temperature detection element and the current-voltage signal acquisition element are respectively disposed inside the battery case 1211 and are respectively connected to the rechargeable battery cells 1212 and the cell manager 1213, wherein the temperature detection element is used to detect the temperature of the internal environment of the battery case 1211, to allow the cell manager 1213 to manage the charge and discharge states of the rechargeable cells 1212 in accordance with the temperature of the internal environment of the battery case 1211 detected by the temperature detection element, wherein the current-voltage signal collecting element is configured to collect a current-voltage signal of the rechargeable battery cell 1212, so as to allow the cell manager 1213 to control the charging and discharging states of the rechargeable cell 1212 according to the current-voltage signal of the rechargeable cell 1212 acquired by the current-voltage signal acquisition element. The power supply device 121 may further include a diaphragm between the battery case 1211 and the rechargeable battery cell 1212, a PCB, a waterproof material filled between the battery case 1211 and the rechargeable battery cell 1212, and the like, so as to ensure reliability and stability of the power supply device 121. The power supply device 121 may further include a CAN bus, a DCDC relay safety protection circuit, and the like. An explosion-proof breather valve may be further disposed inside the battery housing 1212 of the power supply device 121 to ensure the reliability of the power supply device 121.

Preferably, the power supply device 121 further includes a heating element 1214, wherein the heating element 1214 is accommodated inside the battery casing 1211 and is connected to the cell manager 1213, so as to manage the power supply status of the rechargeable cell 1212 to the heating element 1214 through the cell manager 1213. When the lawn mower is used in an environment with a low ambient temperature, in order to ensure that the power supply device 1212 reliably discharges electricity, the temperature of the internal environment of the battery case 1211 can be increased by generating heat through the heating element 1214, so as to allow the rechargeable battery cell 1212 to be charged and discharged in an appropriate temperature environment. Preferably, the heating element 1214 can be an electric heating film surrounding the rechargeable battery cell 1212 to enhance the effect of the heating element 1214.

Further, the battery case 1211 includes a first casing 12111 and a second casing 12112 having a square shape, and a height dimension of the first casing 12111 is greater than a height dimension of the second casing 12112 such that the battery case 1211 forms a trapezoidal structure in which the first casing 12111 is disposed at the rear end 112 of the chassis 11 and the second casing 12112 is disposed at a middle portion of the chassis 11. That is, the battery case 1211 extends from the rear end 112 of the chassis to the middle of the chassis 11. The rechargeable battery cell 1212 is preferably disposed in the second casing 12112 of the battery casing 1211, so that the center of gravity of the power supply device 121 is located at the middle of the frame 11, and thus the center of gravity of the lawn mower is located at the middle, so as to ensure the stability of the lawn mower. Additionally, the first casing 12111 of the battery casing 1211 may be an empty casing to allow for expansion by adding a rechargeable battery cell, thereby improving the cruising ability of the lawnmower.

Still further, the main body 10 further includes a seat 14, wherein the seat 14 is disposed at a middle portion of the frame 11 to allow the driver to drive the lawn mowing machine in a manner of riding on the seat 14. The second casing 12112 of the power supply device 121 is held between the chassis 11 and the seat 14, so that the seat 14 is held at an upper portion of the second casing 12112 of the power supply device 121 in the height direction of the lawn mower, and the seat 14 is prevented from pressing the second casing 12112 of the power supply device 121.

In a specific example of the present invention, according to the parameter requirement of the electrical performance of the lawn mower, the voltage working range of the power supply device is preferably 60V-87.6V, wherein the power supply device 121 adopts a plurality of lithium iron phosphate batteries with model number of LF75 as battery cells to form the rechargeable battery core 1212 according to the preset connection mode, for example, 72 battery cells are connected according to 3P24S (3 and 24 strings) to form the rechargeable battery core 1212, based on the length and width of the rechargeable battery core 1212, the 72 battery cells are placed in two layers, and the copper plate is connected to the rechargeable battery core 1212 after being connected, there are only two lines of positive and negative electrodes.

Mowing machinery the operating principle of the power supply device 121 refers to the attached drawing 5, the relay is controlled to be in the positive pole breaking state, the positive pole series fuse is divided into two paths, and the discharging electric is connected all the way to the output port, and the charging relay is connected to the other path to the charging port. The negative pole penetrates through the Hall sensor (for detecting current) and is connected with the output and input port. In addition, a pre-charge resistor and a pre-charge relay are connected in parallel to two ends of the discharge relay, and the cell manager (e.g., BMS system) 1213 and a power conversion module are disposed in the battery case 1211 for providing 12V power to the cell manager 1213.

Further, the power supply device 121 includes a plurality of mounting seats 1215, and the mounting seats 1215 are disposed at two sides of the battery casing 1211, wherein the mounting seats 1215 of the power supply device 121 can respectively correspond to the threaded holes of the frame 11 to fasten the power supply device 121 to the frame by screws.

With continued reference to fig. 1, 6-10, the lawnmower further includes an elevation mechanism 30 and a steering mechanism 40, wherein the height-adjusting mechanism 30 is disposed on the frame 11 of the body 10 and located in a lower space of the frame 11, the mowing mechanism 20 is disposed on the height-adjusting mechanism 30, to adjustably hold the mowing mechanism 20 in the lower space of the housing 11 by the height-adjusting mechanism 30, so that the height-adjusting mechanism 30 can automatically adjust the relative position of the mowing mechanism 20 and the frame 11 to adjust the height of the mowing mechanism 20 from the ground according to actual needs, and the height-adjusting mechanism 30 can keep the height of the mowing mechanism 20 from the ground in an adjusted state, wherein the mowing mechanism 40 is provided to the body 10 to allow a driver seated in the seat 14 to operate the mowing machine through the operating mechanism 40. For example, the operator seated in the seat 14 may manipulate the lawn mowing machine forward, backward, turn, etc. via the manipulation mechanism 40.

Specifically, referring to fig. 6 to 8C, the manipulating mechanism 40 includes at least one manipulating body 41 and at least one manipulating rod 42, wherein the manipulating body 41 further includes a mounting seat 411 and a pivot seat 412, the pivot seat 412 is rotatably disposed on the mounting seat 411, the mounting seat 411 is disposed on the frame 11 of the body 10, wherein the manipulating rod 42 has a high end 421 and a low end 422, the high end 421 and the low end 422 correspond to each other, wherein the low end 422 of the manipulating rod 42 is mounted on the pivot seat 412 to maintain the high end 421 of the manipulating rod 42 at the upper portion of the frame 11, wherein after the high end 421 of the manipulating rod 42 is driven to swing back and forth at the upper portion of the frame 11, the low end 422 of the manipulating rod 42 can drive the pivot seat 412 to rotate relative to the mounting seat 411, thus, the traveling direction and the traveling speed of the mowing machine can be controlled. That is, the driver can operate the lawn mowing machine, for example, the traveling direction and the traveling speed of the lawn mowing machine by riding the seat 14 provided at the upper portion of the frame 11 and holding the high end portion 421 of the lever 42.

More specifically, in the specific example of the mower shown in fig. 1 to 10, the operating mechanism 40 includes two operating bodies 41 and two operating levers 42, wherein the mounting seats 411 of each operating body 41 are symmetrically disposed on opposite sides of the frame 11 of the main body 10, so that the two operating levers 42 are correspondingly held on opposite sides of the frame 11 of the main body 10. When the driver sits on the seat 14, the driver's two hands can respectively hold the high end portions 421 of the levers 42 to selectively control the two levers 42. For example, when the driver synchronously and equally pushes the high ends 421 of the two levers 42 forward, the mowing machine walks forward along a straight line, when the driver synchronously and equally pulls the high ends 421 of the two levers 42 backward, the mowing machine retreats along a straight line, when the driver only pushes the high end 421 of the lever 42 on the right side forward, the mowing machine turns left, and accordingly, when the driver only pushes the high end 421 of the lever 42 on the left side forward, the mowing machine turns right.

It is worth mentioning that, set up control main part 41 the mount pad 411 in fuselage 10 the mode of frame 11 is in the utility model discloses a not restricted in the lawn mower, for example in the utility model discloses a in a preferred example of lawn mower, mount pad 411 can be installed in frame 11 through screw or screw and nut matched with mode, and in another preferred example of lawn mower, mount pad 411 can be set up in frame 11 through the welded mode.

The control mechanism 40 includes at least one angle sensor 43, wherein the angle sensor 43 is connected to the cell manager 1213 of the power supply device 121 of the power mechanism 12, and the angle sensor 43 is configured to detect a rotation angle of the pivot seat 412 of the control body 41 to control the power output by the power mechanism 12, so as to control the lawn mower. Preferably, when the lever 42 is in the vertical position, the angle of the pivot base 412 of the manipulation body 41 is defined as 0 degree, and the power mechanism 12 is prohibited from outputting power. In the lawn mower of the present invention, according to the rotation angle of the pivot seat 412 detected by the angle sensor 43, the cell manager 1213 may control the rechargeable battery 1212 to the mode control of the voltage output by the motor 122 to control the traveling speed or the retreating speed of the lawn mower.

Referring to fig. 6 and 7, the mounting seat 411 has a pivot space 4111 and an upper opening 4112, the upper opening 4112 communicates with the pivot space 4111, wherein the pivot seat 412 is held in the pivot space 4111 of the mounting seat 411, and the lower end 422 of the lever 42 is mounted to the pivot seat 412 after extending to the pivot space 4111 through the upper opening 4112 of the mounting seat 411. Preferably, the pivot base 412 is suspended in the pivot space 4111 of the mounting seat 411 so as not to be blocked by the inner wall of the mounting seat 411 for forming the pivot space 4111 when the pivot base 412 rotates in the pivot space 4111 of the mounting seat 411. The upper opening 4112 of the mounting seat 411 allows the lower end 422 of the lever 42 to swing, so that the lower end 422 of the lever 42 can drive the pivot seat 412 to rotate in the pivot space 4111 relative to the mounting seat 411.

Specifically, the manipulating body 40 further includes a rotating shaft 44, wherein the pivot seat 412 is disposed in the middle of the rotating shaft 44, and both ends of the rotating shaft 44 are respectively rotatably disposed on the mounting seat 411, such that the pivot seat 412 is rotatably retained in the pivot space 4111 of the mounting seat 411. Preferably, the pivot base 412 and the rotating shaft 44 are fixedly installed, and both ends of the rotating shaft 44 are respectively installed to the installation base 411 through bearings. The angle sensor 43 is mounted to the mounting seat 411, and a detector (detection shaft) of the angle sensor 43 is drivably mounted to an end of the rotating shaft 44, so that the angle sensor 43 can detect the rotation angle of the pivot seat 412 by detecting the rotation amplitude of the rotating shaft 44.

Further, referring to fig. 6 and 7, the control mechanism 40 includes a position switch 45, the position switch 45 is disposed outside the mounting seat 411 and connected to the cell manager 1213 of the power supply device 121 of the power mechanism 12, wherein the lower end portion 422 of the control rod 42 is rotatably mounted on the pivot seat 412 to contact the position switch 45 after the lower end portion 422 of the control rod 42 swings to the outside of the mounting seat 411, so that the position switch 45 can provide a parking signal, and the power mechanism 12 can be prevented from providing power when executing the parking signal, so as to put the lawn mower in a parking state. For example, in a specific example of the lawn mower of the present invention, the cell manager 1213 may cause the lawn mower to be in the parked state by preventing the rechargeable battery 1212 from supplying power to the motor 122 according to the parking signal provided by the station switch 45.

Preferably, the control mechanism 40 further comprises a mounting plate 46, wherein the mounting plate 46 is used for mounting the standing switch 45 to the outer side of the mounting seat 411, so as to arrange the standing switch 45 to the outer side of the mounting seat 411. Alternatively, the stand switch 45 may be directly installed at the outer side of the mounting seat 411 to dispose the stand switch 45 at the outer side of the mounting seat 411. For example, in the specific example of the lawn mower shown in fig. 1 to 10, the mounting plate 46 is mounted or welded to the outside of the mounting seat 411, and the stand switch 45 is mounted to the mounting plate 46, so that the stand switch 45 is mounted to the outside of the mounting seat 411 by the mounting plate 46 to set the stand switch 45 to the outside of the mounting seat 411.

Preferably, the outer side of the mounting seat 411 has a positioning notch 4113, the positioning notch 4113 communicates with the pivoting space 4111 and the upper opening 4112, the position switch 45 corresponds to the positioning notch 4113 of the mounting seat 411, and the lower end 422 of the control rod 42 can be positioned in the positioning notch 4113 of the mounting seat 411 to place the lawn mower in the parking state. It can be understood that, when the lower end 422 of the control rod 42 swings outwards and is positioned in the positioning notch 4113 of the mounting seat 411, the control rod 42 is prevented from swinging forwards and backwards by the side wall of the mounting seat 411 forming the positioning notch 4113, so as to ensure the safety of the lawn mower. That is, in the case that the low end portion 422 of the control lever 42 is not disengaged from the positioning notch 4113 of the mounting seat 411, even when a driver applies a pushing or pulling force for driving the control lever 42 to swing back and forth on the high end portion 421 of the control lever 42, the control lever 42 does not swing back and forth because the low end portion 422 of the control lever 42 is blocked by the side wall of the mounting seat 411 for forming the positioning notch 4113, so as to ensure the safety of the lawn mower.

Preferably, with continued reference to fig. 6 and 7, the pivot base 412 has a receiving groove 4121, a receiving channel 4122 and a swinging channel 4123, the receiving channel 4122 communicates with the receiving groove 4121 at the upper part of the pivot base 412, and the receiving channel 4122 corresponds to the upper opening 4112 of the mounting base 411, the swinging channel 4123 communicates with the receiving groove 4121 at the outer side of the pivot base 412, wherein the lower end portion 422 of the lever 42 extends to the receiving groove 4121 through the receiving channel 4122 of the pivot base 412, and the lower end portion 422 of the lever 42 can enter and be held in the swinging channel 4123.

Specifically, the pivot base 412 includes a front wall 4124, a rear wall 4125 and an inner wall 4126, the front wall 4124 and the rear wall 4125 are spaced apart and disposed opposite to each other, the front side and the rear side of the inner wall 4126 are disposed on the front wall 4124 and the rear wall 4125 respectively to form the swing passage 4123 between the front wall 4124 and the rear wall 4125 and to form the receiving groove 4121 between the front wall 4124, the rear wall 4125 and the inner wall 4126, wherein the lower end portion 422 of the lever 42 is rotatably mounted on the front wall 4124 and the rear wall 4125.

Further, the control body 41 includes a swing stopper 413, the swing stopper 413 is disposed on the pivot seat 412 and protrudes out of the receiving groove 4121, so as to allow the swing stopper 413 to limit the swing range of the control rod 42 toward the inner side of the mounting seat 411 by abutting against the lower end 422 of the control rod 42. Specifically, the pivot base 412 has a swing stopper through hole 4127, the swing stopper through hole 4127 communicates with the receiving groove 4121, wherein the swing stopper 413 extends from the outer side of the inner sidewall 4126 to the receiving groove 4121 through the swing stopper through hole 4127 of the inner sidewall 4126, such that the swing stopper 4127 protrudes from the receiving groove 4121. It can be understood that the swing limit 413 limits the swing range of the lower end 422 of the control rod 42 to the inner side of the mounting seat 411, so that the control rod 42 can be kept in the vertical position, and the driver can conveniently control the mowing machine through the control mechanism 40.

Further, the manipulating body 41 includes a front-side rotation stopper 414 disposed on the mounting seat 411 and protruding from the pivoting space 4111, and a rear-side rotation stopper 415 disposed on the mounting seat 411 and protruding from the pivoting space 4111, and the front-side rotation stopper 414 corresponds to the pivoting seat 412 at the front side of the pivoting seat 412 to allow the front-side rotation stopper 414 to limit the rotation amplitude of the pivoting seat 412 by abutting against the front side of the pivoting seat 412, and the rear-side rotation stopper 415 corresponds to the pivoting seat 412 at the rear side of the pivoting seat 412 to allow the rear-side rotation stopper 415 to limit the rotation amplitude of the pivoting seat 412 by abutting against the rear side of the pivoting seat 412, so that the traveling speed and the retreating speed of the lawn mower can be controlled. That is, the front rotation stopper 414 and the rear rotation stopper 415 correspond to the pivot base 412 at the front side and the rear side of the pivot base 412, respectively, thereby limiting the forward or backward rotation amplitude of the pivot base 412.

Preferably, the height dimension of the front rotation limiter 414 protruding out of the pivoting space 4111 of the mounting seat 411 is smaller than the height dimension of the rear rotation limiter 415 protruding out of the pivoting space 4111 of the mounting seat 411, in this way, the maximum walking speed of the lawn mower is controlled to be greater than the maximum retreating speed, so as to ensure the safety of the lawn mower.

Specifically, the pivot base 412 further includes a front extension wall 4128 extending from the lower end of the front side wall 4124 to the front side, and a rear extension wall 4129 extending from the lower end of the rear side wall 4125 to the rear side. Preferably, the front extension wall 4128 and the front side wall 4124 are a unitary structure, and the rear extension wall 4129 and the rear side wall 4125 are a unitary structure. Optionally, the front extension wall 4128 is welded to the front side wall 4124 and the rear extension wall 4129 is welded to the rear side wall 4125. The front rotation stopper 414 corresponds to the front extension wall 4128 at the front side of the pivot base 414 to allow the front rotation stopper 414 to restrict the forward rotation of the pivot base 412 by abutting against the front extension wall 4128, and correspondingly, the rear rotation stopper 415 corresponds to the rear extension wall 4129 at the rear side of the pivot base 412 to allow the rear rotation stopper 415 to restrict the rearward rotation of the pivot base 412 by abutting against the rear extension wall 4129. For example, in one specific example of the lawn mowing machine of the present invention, the amplitude of forward rotation of the pivot base 412 is limited to within 15 °, and the amplitude of backward rotation of the pivot base 412 is limited to within 10 °. Specifically, the fastest walking speed of the lawn mower can be controlled to be 18km/h by limiting the forward rotation range of the pivot seat 412 in the pivot space 4111 of the mounting seat 411 to be within 15 °, and the fastest retreating speed of the lawn mower can be controlled to be 12km/h by limiting the backward rotation range of the pivot seat 412 in the pivot space 4111 of the mounting seat 411 to be within 10 °.

More specifically, the mounting seat 411 has a front rotation limiter penetration hole 4114 and a rear rotation limiter penetration hole 4115, the front-side rotation limiter penetration hole 4114 and the rear-side rotation limiter penetration hole 4115 communicate with the pivoting space 4111, wherein the front rotation limiter 414 is mounted to the front rotation limiter penetration hole 4114 and extends from the bottom of the mounting seat 411 to the pivot space 4111 through the front rotation limiter penetration hole 4114, such that the front rotation stopper 414 protrudes from the pivoting space 4111 of the mounting seat 411, and the rear rotation limiter 415 is installed at the rear rotation limiter penetration hole 4115 and extends from the bottom of the mounting seat 411 to the pivot space 4111 through the rear rotation limiter penetration hole 4115, this makes the rear rotation stopper 415 protrude from the pivoting space 4111 of the mounting seat 411. For example, the front rotation limiter penetration hole 4114 and the rear rotation limiter penetration hole 4115 of the mount 411 are screw holes, respectively, to allow the front rotation limiter 414 and the rear rotation limiter 415 to be securely mounted to the front rotation limiter penetration hole 4114 and the rear rotation limiter penetration hole 4115 of the mount 411 in a screw-coupled manner, respectively.

Further, the manipulating body 41 includes at least two hydraulic buffers 416, each of the hydraulic buffers 416 is disposed on the mounting seat 411, and a lower end of at least one of the hydraulic buffers 416 extends to a front side of the pivot seat 412, and a lower end of at least one of the hydraulic buffers 416 extends to a rear side of the pivot seat 412. For example, in the specific example of the lawn mower of the present invention shown in fig. 1 to 10, a lower end of the hydraulic shock absorber 416 extends to the front extension wall 4128 of the pivot base 412, and a lower end of the hydraulic shock absorber 416 extends to the rear extension wall 4129 of the pivot base 412. When the high end 421 of the control rod 42 swings forward to drive the pivot base 412 to rotate forward in the pivot space 4111 of the mounting base 411 by the control rod 42, the hydraulic buffer 416 corresponding to the rear extension wall 4129 of the pivot base 412 can act to enhance the resistance of the driver to push the high end 421 of the control rod 42 forward, thereby improving the comfort. Accordingly, when the low end portion 422 of the control lever 42 swings backward to drive the pivot base 412 to rotate backward in the pivot space 4111 of the mounting base 411 by the control lever 42, the hydraulic buffer 416 corresponding to the front extension wall 4128 of the pivot base 412 can act to enhance the resistance of the driver pulling the high end portion 421 of the control lever 42 forward and backward, thereby improving the comfort. Preferably, when the pushing or pulling force applied to the high end 421 of the control rod 42 by the driver is weakened or cancelled, the hydraulic buffer 416 has a tendency and displacement to restore the control rod 42 to the vertical state, so as to ensure the safety of the mowing machine.

The utility model discloses a mowing machine is in during the parking state, control lever 42 swings to the outside and makes control lever 42 low tip 422 be located mount pad 411 location breach 4113, so that control lever 42 low tip 422 laminate in station switch 45, so power unit 12 is prevented output power. It can be appreciated that the side wall of the mounting seat 411 forming the positioning notch 4113 can limit the swing back and forth of the lower end 422 of the lever 42 to prevent the mower from being misoperated.

Referring to fig. 8A to 8C, when the lawn mower is in the driving state, the lower end 422 of the lever 42 is disengaged from the positioning notch 4113 of the mounting seat 411, so that the lever 42 is held in the vertical state. When the driver pushes the high ends 421 of the two levers 42 simultaneously and equally to swing the levers 42 forward, the low ends 422 of the levers 42 drive the pivot bases 412 to rotate in the pivot spaces 4111 of the mounts 411, and the angle sensor 43 can detect the rotation angle of the pivot bases 412 to determine the walking speed of the lawn mower required by the driver according to the rotation angle of the pivot bases 412 detected by the angle sensor 43. When the driver pulls the high ends 421 of the two levers 42 at the same time and with the same amplitude to swing the levers 42 backward, the low ends 422 of the levers 42 drive the pivot bases 412 to rotate in the pivot spaces 4111 of the mounts 411, and the angle sensor 43 can detect the rotation angle of the pivot bases 412 to determine the backward speed of the mowing machine required by the driver according to the rotation angle of the pivot bases 412 detected by the angle sensor 43.

Referring to fig. 9 and 10, the height-adjusting mechanism 30 of the lawn mower of the present invention comprises an electric driving unit 31 and an adjusting unit 32, the adjusting unit 32 is drivably connected to the electric driving unit 31, wherein the electric driving unit 31 and the adjusting unit 32 are respectively disposed on the frame 11 of the main body 10, and the lawn mowing mechanism 20 is disposed on the adjusting unit 32. When the electric driving unit 31 drives the adjusting unit 32, the adjusting unit 32 can lift the mowing mechanism 20 to automatically adjust the ground clearance of the mowing mechanism 20. Preferably, the electric drive unit 31 is connected to the cell manager 1213 and the rechargeable cells 1212 of the power supply device 121 to allow the cell manager 1213 to control a state in which the rechargeable cells 1212 supply power to the electric drive unit 31.

More specifically, the electric drive unit 31 and the adjustment unit 32 are respectively disposed in a lower space of the housing 11 of the main body 10, so that the adjustment unit 32 can hold the mowing mechanism 20 in the lower space of the housing 11 of the main body 10.

With continued reference to fig. 9 and 10, the adjustment unit 32 further includes a front shaft 321, a rear shaft 322, two front mounting bodies 323, two rear mounting bodies 324, two front pivot arms 325, two rear pivot arms 326, two front push arms 327, two rear push arms 328, and two connecting arms 329.

Each of the front installation bodies 323 is symmetrically disposed to the frame 11 of the body 10, and both ends of the front rotation shaft 321 extend to be rotatably mounted to each of the front installation bodies 323, respectively, such that the front rotation shaft 321 is rotatably held in a lower space of the frame 11 of the body 10. Specifically, the front mounting body 323 may be mounted to the frame 11 of the body 10 by means of screws or a screw and nut fit with each other, so that the front mounting body 323 is disposed on the frame 11 of the body 10. Alternatively, the front mounting body 323 may be welded to the frame 11 of the body 10, thereby disposing the front mounting body 323 to the frame 11 of the body 10. Optionally, the front mounting body 323 and a part of the frame 11 of the body 10 are configured as an integrated structure, so that the front mounting body 323 is disposed on the frame 11 of the body 10.

Each of the front mounting bodies 323 is respectively disposed at the frame 11 of the body 10, and each of the front mounting bodies 323 is respectively located at a lower portion of the frame 11, thereby rotatably holding the front rotating shaft 321 in a lower space of the frame 11 of the body 10. In a specific example of the lawn mower of the present invention, the front mounting body 323 may be mounted to the frame 11 of the main body 10 by means of screws or by means of mutual engagement of screws and nuts. In another specific example of the lawn mower of the present invention, the front mounting body 323 is welded to the frame 11 of the main body 10. In another specific example of the lawn mower of the present invention, the front mounting body 323 and the frame 11 of the main body 10 are of an integral structure.

Accordingly, each of the rear mounting bodies 324 is symmetrically disposed to the frame 11 of the body 10, and both ends of the rear rotating shaft 322 extend to be rotatably mounted to each of the rear mounting bodies 324, respectively, such that the rear rotating shaft 322 is rotatably held in the lower space of the frame 11 of the body 10, wherein the rear rotating shaft 322 is drivably disposed to the electric driving unit 31 to allow the electric driving unit 31 to drive the rear rotating shaft 322 to rotate in the lower space of the frame 11 of the body 10. Specifically, the rear mounting body 324 may be mounted to the frame 11 of the body 10 by means of screws or by means of mutual engagement of screws and nuts, so as to arrange the rear mounting body 324 to the frame 11 of the body 10. Alternatively, the rear mounting body 324 may be welded to the frame 11 of the body 10, thereby disposing the rear mounting body 324 to the frame 11 of the body 10. Alternatively, the rear mounting body 324 and a part of the frame 11 of the fuselage 10 are integrally constructed, so that the rear mounting body 324 is disposed on the frame 11 of the fuselage 10. For example, in a specific example of the lawn mowing machine of the present invention, the rear mounting body 324 may be mounted to the frame 11 of the main body 10 by means of screws or by means of mutual engagement of screws and nuts. In another specific example of the lawn mower of the present invention, the rear mounting body 324 is welded to the frame 11 of the main body 10. In another specific example of the lawn mower of the present invention, the rear mounting body 324 and the frame 11 of the main body 10 are of an integral structure.

Each of the pivoting forearms 325 has an outer forearm end 3251 and an inner forearm end 3252, wherein the middle of each of the pivoting forearms 325 is rotatably mounted at both ends of the front rotating shaft 321, so that each of the pivoting forearms 325 is synchronously rotated by the front rotating shaft 321. Accordingly, each of the rear pivoting arms 326 has a rear arm outer end 3261 and a rear arm inner end 3262, wherein the middle portion of each of the rear pivoting arms 326 is rotatably mounted at both ends of the rear rotating shaft 322, so that each of the rear pivoting arms 326 is rotated synchronously by the rear rotating shaft 322. The high end of each said push forearm 327 is pivotally mounted to said forearm outer end 3251 of each said pivot forearm 325, and the low end of each said push forearm 327 is mounted to said mower mechanism 20. Accordingly, a high end portion of each said push-pull rear arm 328 is rotatably mounted to said rear arm outer end 3261 of each said pivot rear arm 326, respectively, and a low end portion of each said push-pull rear arm 328 is mounted to said mower mechanism 20, respectively. Each connecting arm 329 has a front end portion 3291 and a rear end portion 3292 corresponding to said front end portion 3291, respectively, wherein said front end portion 3291 of each said connecting arm 329 is rotatably mounted to said inner forearm end 3252 of each said pivoting forearm 325, respectively, and said rear end portion 3292 of each said connecting arm 329 is rotatably mounted to said inner rear arm end 3262 of each said pivoting rear arm 326, respectively.

Preferably, a lower end of each of the front pushing arms 327 is rotatably mounted to the mowing mechanism 20, and a lower end of each of the rear pushing arms 328 is rotatably mounted to the mowing mechanism 20, so that each of the front pushing arms 327 and each of the rear pushing arms 328 can vertically lift the mowing mechanism 20 when each of the front pushing arms 327 and each of the rear pushing arms 328 is driven to rotate. More preferably, the length of the front pushing arm 327 is greater than the length of the rear pushing arm 328, so that when each front pushing arm 327 and each rear pushing arm 328 are driven to rotate, each front pushing arm 327 and each rear pushing arm 328 can drive the mowing mechanism 20 to horizontally and vertically lift, i.e., the mowing mechanism 20 can be kept horizontal all the time during the driving and lifting of the mowing mechanism 20. In a preferred example of the mowing machine of the present invention, the difference between the length dimension of the push-stretch front arm 327 and the length dimension of the push-stretch rear arm 328 ranges from 3mm to 6mm (including 3mm and 6 mm). Preferably, the difference in length dimensions of the front push-extension arm 327 and the rear push-extension arm 328 is 4 mm.

With continued reference to fig. 9 and 10, the pivoting forearm 325 has a first forearm extension 3253 and a second forearm extension 3254, wherein the direction of extension of the first forearm extension 3253 and the direction of extension of the second forearm extension 3254 are acutely angled to form a forearm opening 3255 between the first forearm extension 3253 and the second forearm extension 3254. For example, the pivoting forearm 325 is generally "V" shaped or "V" shaped. A middle portion of the pivoting forearm 325 is fixedly mounted to an end of the front spindle 321 such that the first forearm extension 3253 of the pivoting forearm 325 forms the inner forearm end 3252 and the second forearm extension 3254 of the pivoting forearm 325 forms the outer forearm end 3251, with the forearm opening 3255 of the pivoting forearm 325 facing downward.

It is worth mentioning that the way of fixedly mounting the middle part of the pivoting forearm 325 at the end of the front spindle 321 is not limited in the mowing machine of the present invention. For example, in a preferred example of the lawn mowing machine of the present invention, the front rotating shaft 321 has a first key groove, the middle portion of the pivoting front arm 325 has a front arm through hole and a second key groove communicating with the front arm through hole, wherein the end portion of the front rotating shaft 321 penetrates and is held in the front arm through hole of the pivoting front arm 325 so that the first key groove and the second key groove correspond to each other, and a flat key is held in the first key groove of the front rotating shaft 321 and the second key groove of the pivoting front arm 325 so as to fixedly mount the pivoting front arm 325 to the front rotating shaft 321. Optionally, a middle portion of the pivoting front arm 325 is welded to an end of the front hinge 321 to fixedly mount the middle portion of the pivoting front arm 325 to the front hinge 321.

Accordingly, the pivoting rear arm 326 has a first rear arm extension 3263 and a second rear arm extension 3264, wherein the direction of extension of the first rear arm extension 3263 and the direction of extension of the second rear arm extension 3264 have an acute included angle to form a rear arm opening 3265 between the first rear arm extension 3263 and the second rear arm extension 3264. For example, the shape of the pivoting rear arm 326 is substantially "V" or "√" shaped. A middle portion of the rear pivot arm 326 is fixedly mounted to an end portion of the rear spindle 322 such that the first rear arm extension 3263 of the rear pivot arm 326 forms the rear arm inner end 3262 and the second rear arm extension 3264 of the rear pivot arm 326 forms the rear arm outer end 3261, and the rear arm opening 3265 of the rear pivot arm 326 faces upward.

It should be noted that the way of fixedly mounting the middle portion of the pivotal rear arm 326 to the end portion of the rear rotating shaft 322 is not limited in the mowing machine of the present invention. For example, in a preferred example of the lawn mowing machine of the present invention, the rear rotating shaft 322 has a third key groove, the middle portion of the pivoting rear arm 326 has a rear arm through hole and a fourth key groove communicating with the rear arm through hole, wherein the end portion of the rear rotating shaft 322 penetrates and is held in the rear arm through hole of the pivoting rear arm 326, so that the third key groove and the fourth key groove correspond to each other, and a flat key is held between the third key groove of the rear rotating shaft 322 and the fourth key groove of the pivoting rear arm 326, to fixedly mount the pivoting rear arm 326 to the rear rotating shaft 322. Optionally, a middle portion of the pivoting rear arm 326 is welded to an end portion of the rear hinge 322 to fixedly mount the middle portion of the pivoting rear arm 326 to the rear hinge 322.

Referring to fig. 9 and 10, the height of the front spindle 321 and the height of the rear spindle 322 are the same, the middle of the front pivoting arm 325 is fixedly mounted to the end of the front spindle 321 with the front arm opening 3255 of the front pivoting arm 325 facing downward, and the middle of the rear pivoting arm 326 is fixedly mounted to the end of the rear spindle 322 with the rear arm opening 3265 of the rear pivoting arm 326 facing upward, such that the height of the front arm inner end 3252 of the front pivoting arm 325 is lower than the height of the rear arm inner end 3262 of the rear pivoting arm 326, and the height of the front arm outer end 3251 of the front pivoting arm 325 is the same as the height of the rear arm outer end 3261 of the rear pivoting arm 326, such that the push-out front arm 327 rotatably mounted to the front arm outer end 3251 of the front pivoting arm 325 and the push-out rear arm 328 rotatably mounted to the rear arm outer end 3261 of the rear pivoting arm 326 are made to be rotated so as to be rotated The mowing mechanism 20 mounted to the lower end of the push-extend front arm 327 and the lower end of the push-extend rear arm 328 is horizontally held in the lower space of the body 10. It will be appreciated that the connecting arm 329 is inclined. Preferably, the connecting arm 329 is convexly curved, so that the electric driving unit 31 can easily drive the rear rotating shaft 322 to simultaneously drive the front rotating shaft 321 to rotate via the connecting arm 329, thereby driving the mowing mechanism 20 to vertically ascend and descend.

With continued reference to fig. 9 and 10, the front mounting body 323 has a first through hole 3230, and both ends of the front rotating shaft 321 extend to the outer side of each front mounting body 323 through the first through hole 3230 of each front mounting body 323, respectively, to allow the middle of the pivoting front arm 325 to be fixedly mounted to the end of the front rotating shaft 321 at the outer side of the front mounting body 323. Preferably, an end of the front rotating shaft 321 is rotatably mounted to the first through hole 3230 of the front mounting body 323 by a bearing.

Specifically, the anterior mounting body 323 has a first anterior splint 3231 and a second forearm splint 3232, wherein the first anterior splint 3231 and the second forearm splint 3232 have a notch, respectively, and the first anterior splint 3231 and the second forearm splint 3232 are mounted to each other in such a manner that the notch of the first anterior splint 3231 and the notch of the second forearm splint 3232 correspond to each other, so that the first through hole 3230 is formed between the first anterior splint 3231 and the second forearm splint 3232.

Accordingly, the rear mounting body 324 has a second through hole 3240, and both ends of the rear rotating shaft 322 extend to the outside of each rear mounting body 324 through the second through hole 3240 of each rear mounting body 324, respectively, to allow the middle portion of the pivoting rear arm 326 to be fixedly mounted to the end of the rear rotating shaft 322 at the outside of the rear mounting body 324. Preferably, an end of the rear rotary shaft 322 is rotatably mounted to the second through hole 3240 of the rear mounting body 324 through a bearing.

Specifically, the rear mounting body 324 has a first rear arm bridge 3241 and a second rear arm bridge 3242, wherein the first rear arm bridge 3241 and the second rear arm bridge 3242 have a notch, respectively, and the first rear arm bridge 3241 and the second rear arm bridge 3242 are mounted to each other in such a manner that the notch of the first rear arm bridge 3241 and the notch of the second rear arm bridge 3242 correspond to each other, so that the second through hole 3240 is formed between the first rear arm bridge 3241 and the second rear arm bridge 3242.

Preferably, referring to fig. 9 and 10, each of the pushing and extending forearms 327 has a slide 3270, and the outer end 3251 of the pivoting forearm 325 is rotatably mounted on the slide 3270 of the pushing and extending forearm 327, so that when the front side of the mowing mechanism 20 is acted upon by an upward force by an obstacle such as a rock, the mowing mechanism 20 exerts an upward force on the pushing and extending forearm 327, so as to allow the pushing and extending forearm 327 to move relative to the pivoting forearm 325 by sliding the outer end 3251 of the pivoting forearm 325 along the slide 3270 of the pushing and extending forearm 327, so that the front side of the mowing mechanism 20 can be tilted higher than the rear side, thus preventing the obstacle such as the rock from directly impacting the mowing mechanism 20 to damage the mowing mechanism 20.

With continued reference to fig. 9 and 10, the electric driving unit 31 includes an electric push rod 311 and a driving swing arm 312, wherein the electric push rod 311 has a mounting end 3111 and a telescopic end 3112 corresponding to the mounting end 3111, the mounting end 3111 of the electric push rod 311 is mounted to the body 10, one end of the driving swing arm 312 is rotatably mounted to the telescopic end 3112 of the electric push rod 311, and the other end of the driving swing arm 312 is fixedly disposed at the rear rotating shaft 322. When the telescopic end 3112 of the electric push rod 311 is telescopic, the electric push rod 311 can drive the rear rotating shaft 322 to synchronously rotate through the driving swing arm 312.

Referring to fig. 1 and fig. 2, the grass cutting mechanism 20 further includes a protective housing 21, at least one driving motor 22 and at least one cutting blade 23, wherein the protective housing 21 has a grass cutting space 211, a grass outlet 212 and at least one mounting channel 213, the grass outlet 212 communicates with the grass cutting space 211 at a side portion of the protective housing 21, the mounting channel 213 communicates with the grass cutting space 211 at an upper portion of the protective housing 21, wherein the driving motor 22 is mounted at the upper portion of the protective housing 21 and the rechargeable battery cell 1212 and the cell manager 1213 connected to the power supply device 121, so as to control a state that the rechargeable battery cell 1212 supplies power to the driving motor 22 through the cell manager 1213, and a rotor mechanism of the driving motor 22 extends from the upper portion of the protective housing 21 to the grass cutting space 211 through the mounting channel 213, the cutter blade 23 is drivably mounted to a rotor mechanism of the guard housing 21 to hold the cutter blade 23 in the mowing space 211 of the guard housing 21. Four corners of the protection housing 21 are respectively disposed at the lower end of each of the front pushing arms 327 and the lower end of each of the rear pushing arms 328, so as to allow each of the front pushing arms 327 and each of the rear pushing arms 328 to lift the mowing mechanism 20. When the mowing machine is used for mowing, the cutting blade 23 can cut the lawn in the mowing space 211, and the cut grass pieces after being cut can be discharged out of the mowing space 211 through the grass outlet 212. Preferably, the mowing mechanism 20 further comprises at least one roller 24, wherein each roller 24 is rotatably mounted on the front side of the protective housing 21 for supporting the protective housing 21.

The driver can control the telescopic end 3112 of the electric putter 311 to extend or retract, for example, the driver can control the telescopic end 3112 of the electric putter 311 to extend or retract by, but not limited to, a control button provided on the body 10. When the telescopic end 3112 of the electric push rod 311 is shifted from a retracted state to an extended state, the electric push rod 311 rotates the rear rotating shaft 322 through the driving swing arm 312, the rear rotating shaft 322 rotates each of the rear pivoting arms 326 synchronously to lower the height of the rear arm outer end 3261 of each of the rear pivoting arms 326, and at the same time, the rear arm inner end 3262 of each of the rear pivoting arms 326 rotates each of the front pivoting arms 325 through each of the connecting arms 329 to lower the height of the front arm outer end 3251 of each of the front pivoting arms 325, because the height of the front arm outer end 3251 of each of the front pivoting arms 325 and the height of the rear arm outer end 3261 of each of the rear pivoting arms 326 are synchronously lowered, so that the ground clearance of the mowing mechanism 20 is adjusted. Accordingly, when the telescopic end 3112 of the electric push rod 311 is shifted from the extended state to the retracted state, the electric push rod 311 rotates the rear rotating shaft 322 in the opposite direction through the driving swing arm 312, the rear rotating shaft 322 rotates each of the rear pivoting arms 326 synchronously to raise the height of the rear arm outer end 3261 of each of the rear pivoting arms 326, and at the same time, the rear arm inner end 3262 of each of the rear pivoting arms 326 rotates each of the front pivoting arms 325 through each of the connecting arms 329 to raise the height of the front arm inner end 3251 of each of the front pivoting arms 325, because the height of the front arm outer end 3251 of each of the front pivoting arms 325 and the height of the rear arm outer end 3261 of each of the rear pivoting arms 326 are raised synchronously, the ground clearance of the mowing mechanism 20 is adjusted.

In the process of trimming lawn using the lawn mower, if the front side of the lawn mowing mechanism 20 touches an obstacle such as a stone, the obstacle such as the stone exerts an upward force on the front side of the mowing mechanism 20 to further force the mowing mechanism 20 upward on the push-out front arm 327, so that the push-out front arm 327 is allowed to move relative to the pivot front arm 325 by sliding the front arm outer end 3251 of the pivot front arm 325 along the slide way 3270 of the push-out front arm 327, and the front side of the mowing mechanism 20 can be inclined higher than the rear side, thereby preventing the obstacle such as the stone from directly impacting the mowing mechanism 20 to damage the mowing mechanism 20.

It will be appreciated by persons skilled in the art that the above embodiments are only examples, wherein features of different embodiments may be combined with each other to obtain embodiments which are easily imaginable in accordance with the disclosure of the invention, but which are not explicitly indicated in the drawings.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. Mowing machine, characterized in that, comprising a machine body and a mowing mechanism, wherein the machine body comprises:

two driving wheels;

two driven wheels;

2. The lawnmower of claim 1, wherein the power supply comprises a battery housing, and a rechargeable cell and a cell manager housed in the battery housing, the rechargeable cell and each of the motors being respectively connected to the cell manager to allow the cell manager to manage the status of the rechargeable cell supplying power to each of the motors.

3. The lawnmower of claim 2, wherein the battery housing comprises a first housing and a second housing that are square, the first housing having a height dimension that is greater than a height dimension of the second housing, wherein the first housing is disposed at the rear end of the chassis and the second housing is disposed at a middle portion of the chassis.

4. The lawnmower machine of claim 2, wherein the power supply comprises a heating element housed within the interior of the battery housing.

5. The lawnmower machine of claim 3, wherein the body further comprises a seat disposed in a middle portion of the frame, wherein the first housing is retained between the frame and the seat.

6. The lawnmower of any one of claims 1-5, wherein the lawnmower further comprises a steering mechanism, wherein the steering mechanism comprises at least one steering lever and at least one steering body, wherein the steering lever has a high end and a low end corresponding to the high end, wherein the steering body comprises a mount and a pivot mount rotatably disposed on the mount, the mount being disposed on the frame of the main body, the low end of the steering lever being mounted on the pivot mount, wherein the low end of the steering lever causes the pivot mount to rotate relative to the mount when the high end of the steering lever swings back and forth.

7. The lawn mowing machine according to any of claims 1 to 5, wherein the lawn mowing machine further comprises an elevation mechanism, wherein the elevation mechanism comprises an electric drive unit provided to the housing of the main body and connected to the power supply device, and an adjustment unit provided to the housing of the main body and drivably connected to the electric drive unit, wherein the lawn mowing mechanism is provided to the adjustment unit to adjustably hold the lawn mowing mechanism in a lower space of the housing of the main body by the elevation mechanism.

8. The lawnmower of claim 6, wherein the lawnmower further comprises an elevation mechanism, wherein the elevation mechanism comprises an electric drive unit and an adjustment unit, the electric drive unit being disposed in the housing of the main body and connected to the power supply, the adjustment unit being disposed in the housing of the main body and drivably connected to the electric drive unit, wherein the lawnmower mechanism is disposed in the adjustment unit to adjustably maintain the lawnmower mechanism in a lower space of the housing of the main body by the elevation mechanism.

9. The lawn mowing machine according to claim 8, wherein the operating mechanism comprises two operating levers and two operating bodies, the mounting seats of the two operating bodies are respectively provided on both sides of the frame of the main body symmetrically to each other, so that the two operating levers are symmetrical to each other.

10. The lawnmower of claim 9, wherein the mount has a pivot space and an upper opening communicating with the pivot space, the pivot mount being retained in the pivot space of the mount, the lower end of the lever extending through the upper opening of the mount to the pivot space.

11. The lawnmower of claim 10, wherein the steering body further comprises a standing switch disposed outside the mount, wherein the lower end of the lever is rotatably mounted to the pivot mount to contact the standing switch after the lower end of the lever swings outside the mount.

12. The lawn mowing machine of claim 11, wherein an outer side of the mount has a positioning notch that communicates the pivot space and the upper opening, the standing switch corresponds to the positioning notch of the mount, wherein the low end of the lever is positionable in the positioning notch of the mount.

13. The lawnmower of claim 12, wherein the pivot base has a receiving groove, a receiving channel, and a swinging channel, the receiving channel communicates with the receiving groove at an upper portion of the pivot base, and the receiving channel corresponds to the upper opening of the mounting base, the swinging channel communicates with the receiving groove at an outer side of the pivot base, wherein the lower end of the lever extends to the receiving groove through the receiving channel of the pivot base, and the lower end of the lever is capable of entering and being held in the swinging channel.

14. The lawn mowing machine of claim 9, wherein the manipulation body further comprises a front-side rotation stopper and a rear-side rotation stopper which are provided to the mount and protrude from the pivoting space, respectively, and which correspond to the pivoting base at a front side thereof to allow the front-side rotation stopper to restrict a rotation amplitude of the pivoting base by abutting against the front side thereof, and which correspond to the pivoting base at a rear side thereof to allow the rear-side rotation stopper to restrict a rotation amplitude of the pivoting base by abutting against the rear side thereof.

15. The lawnmower machine of claim 14, wherein the pivot block further comprises a front extension wall extending from a lower end of the front side wall to a front side and a rear extension wall extending from a lower end of the rear side wall to a rear side, wherein the front rotation stop corresponds to the front extension wall to allow the front rotation stop to limit the amount of rotation of the pivot block by abutting the front extension wall, and the rear rotation stop corresponds to the rear extension wall to allow the rear rotation stop to limit the amount of rotation of the pivot block by abutting the rear extension wall.

16. The lawn mowing machine according to claim 15, wherein the control body comprises a rotating shaft, the pivot base is disposed at a middle portion of the rotating shaft, and both ends of the rotating shaft are rotatably disposed at the mounting bases, respectively.

17. The lawnmower machine of claim 16, wherein the steering body comprises an angle sensor disposed on the mount and coupled to the shaft.

18. The lawn mowing machine according to claim 15, wherein the manipulation body further comprises at least two hydraulic buffers, each of the hydraulic buffers is provided to the mount, and a lower end of at least one of the hydraulic buffers extends to the front extension wall and a lower end of at least one of the hydraulic buffers extends to the rear extension wall.

19. The lawn mowing machine according to claim 17, wherein the manipulation body further comprises at least two hydraulic buffers, each of the hydraulic buffers is provided to the mount, and a lower end of at least one of the hydraulic buffers extends to the front extension wall and a lower end of at least one of the hydraulic buffers extends to the rear extension wall.

20. The lawn mowing machine according to claim 8, wherein the adjusting unit comprises a front rotating shaft, a rear rotating shaft, two front mounting bodies, two rear mounting bodies, two front pivoting arms, two rear pivoting arms, two front pushing arms, two rear pushing arms, and two connecting arms, wherein each front mounting body is symmetrically disposed on the main body, and two ends of the front rotating shaft are rotatably mounted on each front mounting body, wherein each rear mounting body is symmetrically disposed on the main body, and two ends of the rear rotating shaft are rotatably mounted on each rear mounting body and are drivably connected to the electric drive unit, wherein a middle portion of each front pivoting arm is disposed on two ends of the front rotating shaft, and wherein a middle portion of each rear pivoting arm is disposed on two ends of the rear rotating shaft, wherein the upper end portion of each said pushing and extending front arm is rotatably mounted at the outer end of the front arm of each said pivoting front arm, and the lower end portion of each said pushing and extending front arm is mounted at the grass cutting mechanism, wherein the upper end portion of each said pushing and extending rear arm is rotatably mounted at the outer end of the rear arm of each said pivoting rear arm, and the lower end portion of each said pushing and extending rear arm is mounted at the grass cutting mechanism, wherein the two ends of each said connecting arm are rotatably mounted at the inner end of the front arm of said pivoting front arm and the inner end of the rear arm of said pivoting rear arm.

21. The lawnmower machine of claim 20, wherein the pivoting forearm has a first forearm extension and a second forearm extension, the direction of extension of the first forearm extension and the direction of extension of the second forearm extension having an acute included angle to form a forearm opening between the first forearm extension and the second forearm extension, the middle portion of the pivoting forearm being fixedly mounted to the end of the front spindle such that the first forearm extension forms the inner forearm end and the second forearm extension forms the outer forearm end, and the forearm opening of the pivoting forearm facing downward, wherein the pivoting rear arm has a first rear arm extension and a second rear arm extension, the direction of extension of the first rear arm extension and the direction of extension of the second rear arm extension having an acute included angle, so as to form a rear arm opening between the first rear arm extension and the second rear arm extension, the middle portion of the pivoting rear arm being fixedly mounted to the end of the rear spindle so that the first rear arm extension forms the rear arm inner end and the second rear arm extension forms the rear arm outer end, and the rear arm opening of the pivoting rear arm faces upward.

22. The lawnmower of claim 21, wherein the front mounting body has a first through hole, both ends of the front shaft extend through the first through hole of each front mounting body to the outside of each front mounting body, respectively, to allow the middle portion of the pivoting front arm to be fixedly mounted to the ends of the front shaft outside the front mounting body, wherein the rear mounting body has a second through hole, both ends of the rear shaft extend through the second through hole of each rear mounting body to the outside of each rear mounting body, respectively, to allow the middle portion of the pivoting rear arm to be fixedly mounted to the ends of the rear shaft outside the rear mounting body.

23. The lawnmower machine of claim 22, wherein the pushing forearm has a slideway, the outer forearm end of the pivoting forearm being slidably mounted to the slideway of the pushing forearm.

24. The lawnmower machine of claim 23, wherein the lower end of the push-stretch front arm is rotatably mounted to the mowing mechanism and the lower end of the push-stretch rear arm is rotatably mounted to the mowing mechanism.

25. The lawnmower machine of claim 24, wherein the length dimension of the push front arm is greater than the length dimension of the push rear arm.