CN212936733U - Brake release device and electric mowing machine - Google Patents
Brake release device and electric mowing machine Download PDFInfo
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- CN212936733U CN212936733U CN202020451396.2U CN202020451396U CN212936733U CN 212936733 U CN212936733 U CN 212936733U CN 202020451396 U CN202020451396 U CN 202020451396U CN 212936733 U CN212936733 U CN 212936733U
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Abstract
The utility model discloses a brake release device and electronic mowing machinery, wherein brake release device is used for operating a brake equipment and switches to a driving state from a brake state, brake release device includes an at least shift fork, a carousel mechanism, a traction mechanism and an at least linkage mechanism. The fork is mounted to the brake, the disc mechanism includes a disc member rotatably held at a side of the brake, one end of the drawing mechanism is mounted to an edge of the disc member, the other end of the drawing mechanism is allowed to be manually operated, one end of the linkage mechanism is provided to the edge of the disc member, and the other end of the linkage mechanism is provided to the fork.
Description
Technical Field
The utility model relates to a mowing equipment field, in particular to brake release and electric 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. In recent years, with the continuous development of electronic information technology and scientific technology and the continuous enhancement of environmental awareness of people, an electric mower using electric energy as an energy source begins to appear, and specifically, the electric mower provides a frame, a lithium battery pack, an electric control system, a mowing mechanism, two driving motors, two traveling wheels, two supporting wheels and two braking devices. The lithium battery pack and the electric control system are respectively arranged on the rack, and the lithium battery pack is controllably connected to the electric control system. A mowing mechanism is disposed on the chassis and is connected to the electronic control system. The two driving motors are respectively arranged at two opposite sides of the rear part of the rack, and the two driving motors are respectively connected to the electric control system. Each of the road wheels is respectively and drivably mounted to each of the driving motors so that each of the road wheels is respectively held at opposite sides of the rear portion of the frame. The supporting wheels are respectively arranged at two opposite sides of the front part of the frame. The two brake devices are respectively arranged on the two driving motors, and are respectively connected to the electric control system. The electric control system can control the lithium battery pack to supply power to each brake device and each driving motor so as to enable the driving motor to drive the travelling wheel to rotate to enable the electric mower to travel after the brake device enables the electromagnet to generate suction to separate the brake pad in the power-on state, and can control the lithium battery pack to supply power to the mowing mechanism so as to enable the mowing mechanism to perform mowing operation. The electric mower realizes operation based on electric control, once the electric control system breaks down, the brake device cannot be powered to cause the brake pad to be incapable of being separated, and further the whole electric mower cannot move, so that the electric mower is difficult to move to a maintenance place from the fault place, and inconvenience is caused to maintenance of the electric mower. And in the case where the brake pads of the brake device of the electric mower are not separated, if the electric mower is forcibly moved, the drive motor and other mechanisms of the electric mower, such as the transmission case, are easily damaged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a brake release and electric mower, wherein when electric mower breaks down, brake release can easily release electric mower's brake, so allow electric mower can easily be removed the maintenance place from the trouble place, for example electric mower's brake is released the back, through promoting electric mower's mode can with electric mower removes the maintenance place from the trouble place.
An object of the utility model is to provide a brake release and electric mower, wherein brake release allows to be released by manual, for example through outwards pulling brake release's the mode of the handle can make brake release switches to the release state from standby state, in order to release electric mower's brake, even so when electric mower's electrical system breaks down, through manual operation brake release's mode also can easily release electric mower's brake.
An object of the utility model is to provide a brake release and electric mower, wherein brake release can be maintained in the release state, with conveniently will electric mower moves to the maintenance place from the trouble place.
An object of the utility model is to provide a brake release and electronic machinery of mowing, wherein brake release can switch over to the standby state automatically from the release state, so that electronic control system of electronic machinery of mowing resumes right electronic machinery's brake equipment's control.
An object of the utility model is to provide a brake release and electric mower, wherein brake release can release in step two brake equipment of electric mower to in operation and prevent the maloperation.
An object of the utility model is to provide a brake release device and electric mower, wherein electric mower provides one and increases device and a grass cutting device, it is used for keeping to increase the device grass cutting device in the lower part space of electric mower's frame, and it can adjust to increase the device grass cutting device's terrain clearance, so that electric mower satisfies the demand of mowing of co-altitude.
According to an aspect of the utility model, the utility model provides a brake release device, it includes:
a frame;
a power supply device, wherein the power supply device is arranged on the frame;
two driving motors, wherein the two driving motors are respectively arranged at two opposite sides of the rear part of the rack, and each driving motor is respectively connected to the power supply device;
a set of wheels, wherein the set of wheels comprises two driving wheels and two driven wheels, each driving wheel is respectively and drivably installed on each driving motor, and each driven wheel is respectively arranged on the opposite front sides of the front part of the frame;
a mowing device, wherein the mowing device is disposed on the housing, and the mowing device is connected to the power supply;
a brake release device, wherein the brake release device is disposed on the frame, wherein the brake release device has a standby state and a release state, and the brake release device is configured to be manually switched between the standby state and the release state; and
and two braking devices, wherein each braking device is respectively arranged on each driving motor and connected to the power supply device, and each braking device is respectively and operatively connected to the brake release device, wherein each braking device respectively has a braking state and a driving state, when the brake release device is in the standby state, each braking device is respectively capable of switching between the braking state and the driving state, and when the brake release device is in the release state, each braking device is kept in the driving state.
According to an embodiment of the present invention, the brake release device includes a turntable mechanism, a traction mechanism, two shift forks, and two linkages, wherein the turntable mechanism is rotatably mounted to the frame in such a manner as to be held between two driving motors, wherein one end of the traction mechanism is mounted to the turntable mechanism to be deviated from a position of a rotation axis of the turntable mechanism, and the other end of the traction mechanism extends to a rear portion of the frame, wherein each of the shift forks is mounted to each of the brake devices, wherein each of the linkages is mounted to the turntable mechanism to be deviated from a position of the rotation axis of the turntable mechanism, and each of the linkages is mounted to each of the shift forks.
According to an embodiment of the invention, the turntable mechanism comprises a turntable element and a retaining protrusion rotatably mounted at an edge of the turntable element, the turntable element being rotatably mounted to the frame, the retaining protrusion having a retaining aperture, wherein the pulling mechanism comprises a handle, a pulling element and a pressure spring element, a middle portion of the pulling element being movably mounted at the retaining aperture of the retaining protrusion, the pressure spring element being held between the retaining protrusion and an end portion of the pulling element, the other end portion of the pulling element being connected to the handle.
According to an embodiment of the invention, one end of the linkage is rotatably mounted to the edge of the turntable element and the other end of the linkage is rotatably mounted to the fork.
According to the utility model discloses an embodiment, the link gear includes a right angle joint bearing, a joint bearing regulation pole and a horizontal joint bearing, right angle joint bearing install in the carousel component, horizontal joint bearing install in the shift fork, the both ends of joint bearing regulation pole are installed respectively in right angle joint bearing with horizontal joint bearing.
According to an embodiment of the present invention, the brake release device includes a limiting mechanism, the limiting mechanism is installed in the frame, and the limiting mechanism has a limiting channel, wherein the handle includes a handheld portion and an extending limiting portion extending from the handheld portion, wherein the extending limiting portion of the handle is movably installed in the limiting channel of the limiting mechanism to limit the moving direction of the handle.
According to an embodiment of the present invention, the frame has a limiting channel, wherein the handle includes a handheld portion and an extending limiting portion extending from the handheld portion, wherein the extending limiting portion of the handle is movably mounted in the frame to the limiting channel to limit the moving direction of the handle.
According to an embodiment of the present invention, the stop mechanism comprises at least one stop channel, the stop channel communicates with the stop channel, wherein the handle comprises at least one stop, the stop extends outward from the extended limit portion, wherein the handle extends along the stop channel of the stop mechanism when the stop channel moves, the stop of the handle can pass through the stop channel of the stop mechanism, and the handle does rotation relative to the stop mechanism, the stop and the stop channel of the stop mechanism are mutually dislocated to prevent the handle from extending along the stop channel of the stop mechanism.
According to an embodiment of the present invention, the electric mowing device further comprises a height adjusting device, wherein the height adjusting device is disposed on the frame, and the mowing device is disposed on the height adjusting device.
According to another aspect of the utility model, the utility model discloses a brake release device is further provided for an operation brake equipment switches to a driving state from a brake state, wherein brake release device includes:
at least one shift fork, wherein the shift fork is mounted to the brake device;
a disc mechanism, wherein the disc mechanism includes a disc member rotatably held at a side portion of the brake device;
a pulling mechanism, wherein one end of the pulling mechanism is mounted to an edge of the dial element, the other end of the pulling mechanism being allowed to be manually operated; and
at least one linkage, wherein one end of the linkage is arranged at the edge of the turntable element and the other end of the linkage is arranged at the fork.
According to an embodiment of the present invention, the brake release device includes two the shift fork and two the link gear, the rotary plate element is rotationally held two between the brake equipment, every the shift fork is installed in every respectively brake equipment, every one tip of link gear is set up respectively in the edge of rotary plate element, every another tip of link gear is set up respectively in every the shift fork.
According to an embodiment of the invention, one end of the linkage is rotatably mounted to the edge of the turntable element and the other end of the linkage is rotatably mounted to the fork.
According to the utility model discloses an embodiment, the link gear includes a right angle joint bearing, a joint bearing regulation pole and a horizontal joint bearing, right angle joint bearing install in the carousel component, horizontal joint bearing install in the shift fork, the both ends of joint bearing regulation pole are installed respectively in right angle joint bearing with horizontal joint bearing.
According to an embodiment of the present invention, the brake release device includes a limiting mechanism, and the limiting mechanism has a limiting channel, wherein the handle includes a holding portion and an extending limiting portion extending from the holding portion, wherein the extending limiting portion of the handle is movably mounted to the limiting channel of the limiting mechanism to limit the moving direction of the handle.
According to an embodiment of the present invention, the stop mechanism comprises at least one stop channel, the stop channel communicates with the stop channel, wherein the handle comprises at least one stop, the stop extends outward from the extended limit portion, wherein the handle extends along the stop channel of the stop mechanism when the stop channel moves, the stop of the handle can pass through the stop channel of the stop mechanism, and the handle does rotation relative to the stop mechanism, the stop and the stop channel of the stop mechanism are mutually dislocated to prevent the handle from extending along the stop channel of the stop mechanism.
Drawings
Fig. 1A and 1B are schematic perspective views of an electric lawn mower according to a preferred embodiment of the present invention.
Fig. 2 is an exploded view of the electric lawn mower according to the preferred embodiment of the present invention.
Fig. 3 is a schematic perspective view of a brake release device of the electric lawn mower according to the preferred embodiment of the present invention.
Fig. 4 is an exploded view of the brake release device of the electric lawn mower according to the preferred embodiment of the present invention.
Fig. 5A to 5C are schematic views of different operating states of the brake release device of the electric lawn mower according to the above preferred embodiment of the present invention.
Fig. 6 is a perspective view of an elevation adjustment device of the electric lawn mower according to the preferred embodiment of the present invention.
Fig. 7 is an exploded view of the height adjusting device of the electric lawn mower according to the preferred embodiment of the present invention.
Fig. 8A is a schematic side view of a state of the mowing machine according to the above preferred embodiment of the present invention.
Fig. 8B is a perspective view of the height-adjusting mechanism of the mowing machine according to the preferred embodiment of the present invention in the above state.
Fig. 9A is a schematic side view of another state of the mowing machine according to the preferred embodiment of the present invention.
Fig. 9B is a perspective view of the height-adjusting mechanism of the mowing machine according to the preferred embodiment of the present invention in the above state.
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. 1A to 9B of the drawings of the present application, an electric lawn mower according to a preferred embodiment of the present invention is disclosed and explained in the following description, wherein the electric lawn mower includes a frame 10, a power supply unit 20, two driving motors 30, two braking units 40, a set of wheels 50, and a mowing unit 60.
The power supply device 20 is disposed on the housing 10, wherein the power supply device 20 is configured to provide electric power for the electric lawn mower to drive the power lawn mower to work. Preferably, the power supply device 20 is configured with a lithium battery to be able to be supplemented with electric power after the electric power of the power supply device 20 is consumed. For example, after the power of the power supply device 20 is consumed, the electric lawn mower allows the commercial power to be supplemented to the power supply device 20.
Each of the driving motors 30 is respectively disposed at both sides of the rear portion of the rack 10, and each of the driving motors 30 is respectively connected to the power supply device 20, wherein the power supply device 20 is configured to supply power to the driving motor 30 to operate the driving motor 30. Preferably, the driving motor 30 is connected to the power supply device 20 through an electronic control system, so as to allow the electronic control system to control the state that the power supply device 20 supplies power to the driving motor 30.
Each of the brake devices 40 is provided to each of the driving motors 30, respectively, and each of the brake devices 40 is connected to the power supply device 20, respectively. The brake device 40 has a braking state and a driving state, and the brake device 40 can be switched between the braking state and the driving state, wherein when the brake device 40 is in the braking state, the brake device 40 is configured to prevent the driving motor 30 from operating, and correspondingly, when the brake device 40 is in the driving state, the brake device 40 is configured to allow the driving motor 30 to operate. Specifically, brake equipment 40 includes an electro-magnet and a brake block, if brake equipment 40 the electro-magnet is not supplied power, then the brake block locks driving motor 30 makes brake equipment 40 be in the brake state, brake equipment 40 stops this moment driving motor 30 works, correspondingly, if brake equipment 40 the electro-magnet is supplied power, then the electro-magnet adsorbs the brake block is in order to release driving motor 30 and make brake equipment 40 be in the driving state, brake equipment 40 allows driving motor 30 to work this moment. Preferably, the braking device 40 is connected to the power supply device 20 through the electronic control system, so as to allow the electronic control system to control the state that the power supply device 20 supplies power to the braking device 40.
The set of wheels 50 includes two driving wheels 51 and two driven wheels 52, wherein each driving wheel 51 is respectively and drivably mounted to each driving motor 30 such that the two driving wheels 51 are disposed at opposite sides of the rear portion of the frame 10, and wherein each driven wheel 52 is disposed at opposite sides of the front portion of the frame 10.
The mowing device 60 is disposed on the housing 10, and the mowing device 60 is connected to the power supply device 20, wherein the power supply device 20 is configured to supply power to the mowing device 60 to operate the mowing device 60. Preferably, the grass cutting device 60 is connected to the power supply device 20 through the electronic control system to allow the electronic control system to control the state of the power supply device 20 supplying power to the grass cutting device 60.
Specifically, the working process of the electric mowing machine is as follows: when the power supply device 20 is set to supply power to the brake device 40, the brake device 40 is switched from the braking state to the driving state, so that the brake pads of the brake device 40 release the driving motor 30; when the power supply device 20 is configured to supply power to the driving motor 30, the driving motor 30 can drive the electric mowing machine to walk through the driving wheel 51; when the power supply device 20 is set to supply power to the grass cutting device 60, the grass cutting device 60 can cut the lawn; when the power supply device 20 is set to stop supplying power to the brake device 40, the brake device 40 is switched from the driving state to the braking state, so that the brake pad of the brake device 40 locks the driving motor 30 to prevent the electric mowing machine from walking.
With continued reference to fig. 1A-9B, the electric lawnmower of the present invention further comprises a brake release device 70, wherein the brake release device 70 is disposed on the frame 10, and each of the brake devices 40 is operatively connected to the brake release device 70. The brake release device 70 has a standby state and a release state, and the brake release device 70 can be manually operated to switch between the standby state and the release state.
When the brake release device 70 is in the standby state, the brake device 40 can be operated to switch between the braking state and the driving state, and accordingly, when the brake release device 70 is in the release state, the brake device 40 is operated to switch from the braking state to the driving state and is maintained in the driving state. Preferably, when the brake release device 70 is switched from the standby state to the release state, both of the brake devices 40 are operated to be synchronously switched from the braking state to the driving state to allow the electric lawn mower to be moved. For example, when the power supply device 20 of the electric lawn mower has a low power or when the electric control system of the electric lawn mower fails to supply power to the brake device 40, the brake device 40 cannot be driven by electric energy to switch from the braking state to the driving state, at this time, the brake pad of the brake device 40 locks the driving motor 30 to cause the electric mowing machine to be unable to walk, in this case, when the brake release device 70 is switched from the standby state to the release state by manually operating the brake release device 70, each of the brake devices 40 is capable of being actuated by the brake release device 70 to switch from the braking state to the driving state, in which the brake pads of the brake devices 40 release the driving motor 30 to allow the electric lawn mower to be easily pushed from a trouble place to a maintenance place.
With continued reference to fig. 1A-9B, the brake release device 70 includes a turntable mechanism 71, a pulling mechanism 72, two forks 73, and two linkages 74. The turntable mechanism 71 is rotatably mounted to the housing 10, and the turntable mechanism 71 is held between the two drive motors 30. One end of the pulling mechanism 72 is connected to the turntable mechanism 71, and the connection position of the pulling mechanism 72 and the turntable mechanism 71 is offset from the rotational axis of the turntable mechanism 71. Each of the shift forks 73 is installed at each of the brake devices 40, respectively, so that each of the brake devices 40 can be operated by each of the shift forks 73 to be switched from the braking state to the driving state. One end of each of the link mechanisms 74 is mounted to the dial mechanism 71, respectively, and the other end of each of the link mechanisms 74 is mounted to each of the forks 73, respectively, and the mounting positions of the link mechanisms 74 and the dial mechanism 71 are offset from the rotational axis of the dial mechanism 71. When a force is applied to the free end of the pulling mechanism 72 (the end of the pulling mechanism 72 not used for connecting the rotating disc mechanism 71), the pulling mechanism 72 can drive the rotating disc mechanism 71 to rotate around the rotating shaft relative to the frame 10, so as to allow the rotating disc mechanism 71 to drive each fork 73 through each linkage 74 to operate the brake device 40, so that the brake device 40 is switched from the braking state to the driving state.
Further, the turntable mechanism 71 includes a turntable member 711 and a retaining protrusion 712, wherein the turntable member 711 is rotatably mounted to the frame 10, wherein the retaining protrusion 712 is rotatably mounted to an edge of the turntable member 711, and the retaining protrusion 712 has a retaining through hole 7121. The pulling mechanism 72 includes a pulling handle 721, a pulling member 722, and a compressed spring member 723, wherein a middle portion of the pulling member 722 is movably mounted to the holding penetration 7121 of the holding protrusion 712, wherein the compressed spring member 723 is held between one end portion of the pulling member 722 and the holding protrusion 712, wherein the pulling handle 721 is provided at the other end portion of the pulling member 722. Preferably, the pressure spring member 723 is held between one end of the pulling member 722 and the holding projection 712 in such a manner as to be fitted around the pulling member 722, so that the pressure spring member 723 can be prevented from being disengaged from between the end of the pulling member 722 and the holding projection 712.
When the handle 721 is pulled outward to switch the brake release device 70 from the standby state to the release state, the handle 721 can pull the pulling member 722 outward synchronously and at the same amplitude so that the pulling member 722 and the holding protrusion 712 press the compressed spring member 723, and at this time, the compressed spring member 723 can push the holding protrusion 712 so as to allow the holding protrusion 712 to drive the rotary plate member 711 to rotate around the rotation axis relative to the frame 10, so that the rotary plate member 711 can switch the brake device 40 from the braking state to the driving state by operating the brake device 40 through each of the linkages 74 and each of the dials 73. Accordingly, when the pulling force applied to the handle 721 is removed, each of the braking devices 40 can be automatically switched from the driving state to the braking state, and at this time, each of the braking devices 40 can drive the rotating disc member 711 to rotate around the rotating shaft relative to the frame 10 through each of the forks 73 and each of the linkages 74, and the pulling member 722 and the handle 721 can be restored to the initial state under the mutual cooperation of the retaining protrusion 712 and the compressed spring member 723, so that the brake release device 70 can be switched from the release state to the standby state.
Further, the brake release device 70 includes a limiting mechanism 75, wherein the limiting mechanism 75 is disposed on the frame 10, and the limiting mechanism 75 forms a limiting channel 751. The pull handle 721 of the pulling mechanism 72 includes a hand-held portion 7211 and a retaining extension 7212 extending from the hand-held portion 7211, wherein the pulling element 722 is mounted to the retaining extension 7212 of the pull handle 721. The limit extension 7212 of the handle 721 is movably retained in the limit channel 751 of the limit mechanism 75 such that the limit mechanism 75 and the handle 721 of the pulling mechanism 72 cooperate to limit the direction of movement of the handle 721. In other examples of the electric lawn mower of the present invention, the frame 10 forms the limit passage 751 so that the limit extension 7212 of the handle 721 is movably held in the limit passage 751 of the frame 10, so that the frame 10 and the handle 721 of the pulling mechanism 72 cooperate with each other to limit the moving direction of the handle 721.
Further, the restraining mechanism 75 has at least one stopper channel 752, the stopper channel 752 is communicated with the restraining channel 751, wherein the handle 721 comprises at least one stopper 7213, the stopper 7213 extends outwardly from the restraining extension 7212, wherein when a force is applied to the handle 721 to move the extension restraining portion 7212 along the restraining channel 751 of the restraining mechanism 75, the stopper 7213 of the handle 721 can pass through the stopper channel 752 of the restraining mechanism 75, and the stopper 7213 and the stopper channel 752 of the restraining mechanism 75 can be misaligned by rotating the handle 721, so that the brake release device 70 can be maintained in the released state even when the external force applied to the handle 721 is removed. Specifically, the stopper mechanism 75 has two stopper channels 752, and the two stopper channels 752 are symmetrical to each other, and accordingly, the handle 721 has two stoppers 7213, and the two stoppers 7213 are symmetrical to each other.
The linkage mechanism 74 further includes a right angle joint bearing 741, a joint bearing adjusting lever 742, and a horizontal joint bearing 743, wherein the right angle joint bearing 741 is mounted to the turntable member 711, the horizontal joint bearing 743 is mounted to the fork 73, and both ends of the joint bearing adjusting lever 742 extend to be connected to the right angle joint bearing 741 and the horizontal joint bearing 743, respectively, such that the right angle joint bearing 741, the joint bearing adjusting lever 742, and the horizontal joint bearing 743 can cooperate with each other to operate the brake apparatus 40 by the fork 74 when the turntable member 711 is driven to rotate with respect to the frame 10.
Alternatively, in another example of the electric lawn mower of the present invention, both ends of the link mechanism 74 are rotatably mounted to the rotary plate member 711 and the fork 73, respectively, so that the brake device 40 is operated by the fork 74 when the rotary plate member 711 is driven to rotate relative to the frame 10.
Referring to fig. 5A, when the brake release device 70 is in the standby state, if the power supply device 20 can normally supply power to the brake device 40, the brake device 40 can be kept in the driving state, and at this time, the driving motor 30 can be powered to drive the electric mowing machine to walk, and accordingly, if the power supply device 20 cannot normally supply power to the brake device 40, the brake device 40 is kept in the braking state, so that the electric mowing machine cannot move.
Referring to fig. 5B, when the handle 721 of the pulling mechanism 72 is pulled outwards, the pulling element 722 and the compressed spring element 723 of the pulling mechanism 72 and the holding protrusion 712 of the rotating disc mechanism 71 can cooperate with each other to rotate the rotating disc element 711 around the rotating shaft relative to the frame 10, so that the rotating disc element 711 can operate the brake 40 through the linkage mechanism 74 and the fork 73 to switch the brake 40 from the braking state to the driving state, and the electric lawn mower can be easily pushed to move.
Referring to fig. 5C, turning the handle 721 to misalign the stop 7213 of the handle 721 and the stop channel 752 of the restraining mechanism 75 such that the brake release 70 is maintained in the released state while the brake 40 is maintained in the drive state to allow the electric lawn mower to be remotely moved.
With continued reference to fig. 1 to 9B, the electric lawn mower further includes an elevation device 80, wherein the elevation device 80 is disposed on the housing 10, the lawn mowing device 60 is disposed on the elevation device 80, the lawn mowing device 60 is held in a lower space of the housing 10 by the elevation device 80, and the elevation device 80 is configured to adjust a relative position of the housing 10 and the lawn mowing device 60 to adjust a height of the lawn mowing device 60 from the ground, and to maintain the height of the lawn mowing device 60 from the ground in an adjusted state.
Specifically, the height-adjusting device 80 includes an electric driving unit 81 and an adjusting unit 82 which is drivably connected to the electric driving unit 81, wherein the electric driving unit 81 and the adjusting unit 82 are respectively disposed on the housing 10, the electric driving unit 81 is connected to the power supply device 20, and the grass cutting device 60 is disposed on the adjusting unit 82. When the electric driving unit 81 drives the adjusting unit 82, the adjusting unit 82 can lift the mowing device 60 to automatically adjust the height of the mowing device 60 from the ground.
More specifically, the electric drive unit 81 and the adjustment unit 82 are respectively disposed in the lower space of the housing 10, so that the adjustment unit 82 can hold the mowing device 60 in the lower space of the housing 10.
With continued reference to fig. 6-9B, the adjustment unit 82 includes a front hinge 821, a rear hinge 822, two front mounts 823, two rear mounts 824, two front pivot arms 825, two rear pivot arms 826, two front push arms 827, two rear push arms 828, and two connecting arms 829.
Each of the front installation bodies 823 is symmetrically provided to the rack 10, and both ends of the front rotary shaft 821 are extended to be rotatably installed to each of the front installation bodies 823, respectively, such that the front rotary shaft 821 is rotatably held in a lower space of the rack 10. Specifically, the front mounting body 823 may be mounted to the frame 10 by screws or by mutually matching screws and nuts, so as to dispose the front mounting body 823 to the frame 10. Alternatively, the front mounting body 823 may be welded to the rack 10, thereby disposing the front mounting body 823 to the rack 10. Optionally, the front mounting body 823 and a part of the mechanism of the rack 10 are of an integrated structure, so that the front mounting body 823 is disposed on the rack 10.
Accordingly, each of the rear mounting bodies 824 is symmetrically disposed on the main body 10, and both ends of the rear rotating shaft 822 extend to be rotatably mounted on each of the rear mounting bodies 824, such that the rear rotating shaft 822 is rotatably held in the lower space of the main body 10, wherein the rear rotating shaft 822 is drivably disposed on the electric driving unit 31 to allow the electric driving unit 31 to drive the rear rotating shaft 822 to rotate in the lower space of the main body 10. Specifically, the rear mounting body 824 may be mounted to the body 10 by means of screws or a screw and nut fit with each other, so that the rear mounting body 824 is disposed on the body 10. Alternatively, the rear mounting body 824 may be welded to the body 10, thereby disposing the rear mounting body 824 to the body 10. Alternatively, the rear mounting body 824 and a portion of the mechanism of the main body 10 are an integral structure, so that the rear mounting body 824 is disposed on the main body 10.
Each of the pivoting forearms 825 has an outer forearm end 8251 and an inner forearm end 8252, wherein the middle of each of the pivoting forearms 825 is rotatably mounted at two ends of the front rotating shaft 821 to drive each of the pivoting forearms 825 to rotate synchronously by the front rotating shaft 821. Accordingly, each of the rear pivoting arms 826 has a rear arm outer end 8261 and a rear arm inner end 8262, respectively, wherein the middle portion of each of the rear pivoting arms 826 is rotatably mounted at both ends of the rear rotating shaft 822, respectively, so that each of the rear pivoting arms 826 is synchronously rotated by the rear rotating shaft 822. The high end of each of the push forearms 827 is rotatably mounted to the forearm outer end 8251 of each of the pivot forearms 825, and the low end of each of the push forearms 827 is mounted to the mower 60. Accordingly, a high end portion of each said push-pull rear arm 828 is rotatably mounted to said rear arm outer end 8261 of each said pivot rear arm 826, and a low end portion of each said push-pull rear arm 828 is mounted to said mower 60. Each link arm 829 has a front end 8291 and a rear end 8292 corresponding to the front end 8291, wherein the front end 8291 of each link arm 829 is rotatably mounted to the front arm inner end 8252 of each front pivot arm 825, and the rear end 8292 of each link arm 829 is rotatably mounted to the rear arm inner end 8262 of each rear pivot arm 826.
Preferably, a lower end of each of the front pushing arms 827 is rotatably mounted on the mower 60, and a lower end of each of the rear pushing arms 828 is rotatably mounted on the mower 60, so that each of the front pushing arms 827 and each of the rear pushing arms 828 can vertically lift the mower 60 when each of the front pushing arms 827 and each of the rear pushing arms 828 are driven to rotate. More preferably, the length of the pushing front arm 827 is greater than that of the pushing rear arm 828, so that when each pushing front arm 827 and each pushing rear arm 828 are driven to rotate, each pushing front arm 827 and each pushing rear arm 828 can drive the mowing device 60 to horizontally and vertically lift, that is, the mowing device 60 can be kept horizontal all the time during the driving of the mowing device 60 to lift. In a preferred example of the mowing machine of the present invention, the difference between the length dimension of the pushing and extending front arm 827 and the length dimension of the pushing and extending rear arm 828 is in the range of 3mm to 6mm (including 3mm and 6 mm). Preferably, the difference in length dimensions between the front and rear pushing arms 827, 828 is 4 mm.
With continued reference to fig. 6-9B, the pivoting forearm 825 has a first forearm extension 8253 and a second forearm extension 8254, wherein the direction of extension of the first forearm extension 8253 and the direction of extension of the second forearm extension 8254 are at an acute angle to form a forearm opening 8255 between the first forearm extension 8253 and the second forearm extension 8254. For example, the pivoting front arm 825 is generally "V" or "V" shaped. A middle portion of the pivoting forearm 825 is fixedly mounted to an end of the forward spindle 821 such that the first forearm extension 8253 of the pivoting forearm 825 forms the forearm inner end 8252 and the second forearm extension 8254 of the pivoting forearm 825 forms the forearm outer end 8251 with the forearm opening 8255 of the pivoting forearm 825 facing downward.
It is worth mentioning that the way of fixedly mounting the middle of the pivoting front arm 825 at the end of the front spindle 821 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 rotary shaft 821 has a first key groove, the middle portion of the pivoting front arm 825 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 rotary shaft 821 is inserted into and held in the front arm through hole of the pivoting front arm 825 so that the first key groove and the second key groove correspond to each other, and a flat key is held between the first key groove of the front rotary shaft 821 and the second key groove of the pivoting front arm 825 so as to fixedly mount the pivoting front arm 825 to the front rotary shaft 821. Optionally, a middle portion of the pivoting front arm 825 is welded to an end of the front spindle 821 to fixedly mount the middle portion of the pivoting front arm 825 to the front spindle 821.
Accordingly, the pivoting rear arm 826 has a first rear arm extension 8263 and a second rear arm extension 8264, wherein the extension direction of the first rear arm extension 8263 and the extension direction of the second rear arm extension 8264 have an acute included angle to form a rear arm opening 8265 between the first rear arm extension 8263 and the second rear arm extension 8264. For example, the rear pivot arm 826 may be generally "V" shaped or "√" shaped. A middle portion of the rear pivot arm 826 is fixedly mounted to an end of the rear pivot 822 such that the first rear arm extension 8263 of the rear pivot arm 826 forms the rear arm inner end 8262 and the second rear arm extension 8264 of the rear pivot arm 826 forms the rear arm outer end 8261, and the rear arm opening 8265 of the rear pivot arm 826 faces upward.
It should be noted that the manner of fixedly mounting the middle portion of the pivoting rear arm 826 to the end portion of the rear rotating shaft 822 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 822 has a third key groove, the rear pivoting arm 826 has a rear arm through hole and a fourth key groove communicating with the rear arm through hole in the middle thereof, wherein the end of the rear rotating shaft 822 penetrates and is held in the rear arm through hole of the rear pivoting arm 826 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 822 and the fourth key groove of the rear pivoting arm 826 to fixedly mount the rear pivoting arm 826 to the rear rotating shaft 822. Optionally, a middle portion of the rear pivoting arm 826 is welded to an end of the rear spindle 822 to fixedly mount the middle portion of the rear pivoting arm 826 to the rear spindle 822.
Referring to fig. 6 to 9B, the height of the front rotation shaft 821 and the height of the rear rotation shaft 822 are the same, the middle portion of the front pivot arm 825 is fixedly mounted to the end portion of the front rotation shaft 821 with the front arm opening 8255 of the front pivot arm 825 facing downward, and the middle portion of the rear pivot arm 826 is fixedly mounted to the end portion of the rear rotation shaft 822 with the rear arm opening 8265 of the rear pivot arm 826 facing upward, such that the height of the front arm inner end 8252 of the front pivot arm 825 is lower than the height of the rear arm inner end 8262 of the rear pivot arm 826, and such that the height of the front arm outer end 8251 of the rear pivot arm 825 is the same as the height of the rear arm outer end 8261 of the rear pivot arm 826, and thus, the push-push front arm 827 rotatably mounted to the front arm outer end 8251 of the front pivot arm 825 and the push-push rear arm 828 rotatably mounted to the rear arm outer end 8261 of the rear pivot arm 826 are the same as each other The mower 60 mounted to the lower end of the push front arm 827 and the lower end of the push rear arm 828 is horizontally held in the lower space of the housing 10. It will be appreciated that the connecting arms 829 are inclined. Preferably, the connecting arm 829 is of a convex arc shape, so that the electric driving unit 81 can easily drive the rear rotating shaft 822 to simultaneously drive the front rotating shaft 821 to rotate via the connecting arm 829, thereby driving the mowing device 60 to vertically ascend and descend.
With continued reference to fig. 6 to 9B, the front mounting body 823 has a first through hole 8230, and both ends of the front rotating shaft 821 extend to the outside of each front mounting body 823 through the first through hole 8230 of each front mounting body 823, respectively, so as to allow the middle of the pivoting front arm 825 to be fixedly mounted to the end of the front rotating shaft 821 at the outside of the front mounting body 823. Preferably, an end of the front rotary shaft 821 is rotatably mounted to the first penetration hole 8230 of the front mounting body 823 through a bearing.
Specifically, the front mounting body 823 has a first forearm clamp plate 8231 and a second forearm clamp plate 8232, in which the first forearm clamp plate 8231 and the second forearm clamp plate 8232 have a notch, respectively, and the first forearm clamp plate 8231 and the second forearm clamp plate 8232 are mounted to each other in such a manner that the notch of the first forearm clamp plate 8231 and the notch of the second forearm clamp plate 8232 correspond to each other, so that the first through-hole 8230 is formed between the first forearm clamp plate 8231 and the second forearm clamp plate 8232.
Accordingly, the rear mounting body 824 has a second through hole 8240, and both ends of the rear rotary shaft 822 extend to the outer side of each rear mounting body 824 through the second through hole 8240 of each rear mounting body 824, respectively, to allow the middle portion of the pivoting rear arm 826 to be fixedly mounted to the end portion of the rear rotary shaft 822 at the outer side of the rear mounting body 824. Preferably, an end of the rear rotary shaft 822 is rotatably mounted to the second through hole 8240 of the rear mounting body 824 through a bearing.
Specifically, the rear mounting body 824 has a first rear arm clamp 8241 and a second rear arm clamp 8242, wherein the first rear arm clamp 8241 and the second rear arm clamp 8242 have a notch, respectively, and the first rear arm clamp 8241 and the second rear arm clamp 8242 are mounted to each other in such a manner that the notch of the first rear arm clamp 8241 and the notch of the second rear arm clamp 8242 correspond to each other, so that the second through hole 8240 is formed between the first rear arm clamp 8241 and the second rear arm clamp 8242.
Preferably, referring to fig. 6-9B, each of the pushing and extending forearms 827 has a slide 8270, and the outer forearm end 8251 of the pivoting forearm 825 is rotatably mounted to the slide 8270 of the pushing and extending forearm 827 such that when the front side of the mower 60 is acted upon by an upward force by an obstacle such as a rock, the mower 60 applies an upward force to the pushing and extending forearm 827 to allow movement of the pushing and extending forearm 827 relative to the pivoting forearm 825 by sliding the outer forearm end 8251 of the pivoting forearm 825 along the slide 8270 of the pushing and extending forearm 827 such that the front side of the mower 60 can be tilted higher than the rear side such that the mower 60 is prevented from being damaged by the obstacle such as a rock directly impacting the mower 60.
With continued reference to fig. 6-9B, the electric driving unit 81 includes an electric push rod 811 and a driving swing arm 812, wherein the electric push rod 811 has a mounting end 8111 and a telescopic end 8112 corresponding to the mounting end 8111, the mounting end 8111 of the electric push rod 811 is mounted to the frame 10, one end of the driving swing arm 812 is rotatably mounted to the telescopic end 8112 of the electric push rod 811, and the other end of the driving swing arm 812 is fixedly disposed on the rear rotating shaft 822. When the telescopic end 8112 of the electric putter 811 extends and contracts, the electric putter 811 can drive the rear rotary shaft 822 to synchronously rotate through the driving swing arm 812.
Referring to fig. 1 to 9B, the grass cutting device 60 further includes a protective housing 61, at least one grass cutting motor 62 and at least one cutting blade 63, wherein the protective housing 61 has a grass cutting space 611, a grass outlet 612 and at least one mounting channel 613, the grass outlet 612 communicates with the grass cutting space 611 at a side portion of the protective housing 61, the mounting channel 613 communicates with the grass cutting space 611 at an upper portion of the protective housing 61, wherein the grass cutting motor 62 is mounted at the upper portion of the protective housing 61, a rotor mechanism of the grass cutting motor 62 extends from the upper portion of the protective housing 61 to the grass cutting space 611 through the mounting channel 613, and the cutting blade 63 is drivingly mounted to the rotor mechanism of the protective housing 61 to maintain the cutting blade 63 in the grass cutting space 611 of the protective housing 61. Four corners of the protection housing 61 are respectively disposed at a lower end of each of the front pushing arms 827 and a lower end of each of the rear pushing arms 828, so as to allow each of the front pushing arms 827 and each of the rear pushing arms 828 to lift the mowing device 60. When the mowing machine is used for mowing, the cutter 63 can cut the lawn in the mowing space 611, and the cut grass pieces after being cut can be discharged out of the mowing space 611 through the grass outlet 612. Preferably, the mowing device 60 further comprises at least one roller 64, wherein each roller 64 is rotatably mounted on the front side of the protective housing 61 for supporting the protective housing 61.
Referring to fig. 8A to 9B, a user may control the telescopic end 8112 of the electric putter 811 to extend and retract, for example, the user may control the telescopic end 8112 of the electric putter 811 to extend and retract by, but not limited to, a control button provided on the housing 10. When the telescopic end 8112 of the electric push rod 811 is converted from a retracted state to an extended state, the electric push rod 811 rotates the rear rotating shaft 822 via the driving swing arm 812, the rear rotating shaft 822 rotates each of the pivoting rear arms 826 synchronously to lower the height of the rear arm outer end 8261 of each of the pivoting rear arms 826, and at the same time, the rear arm inner end 8262 of each of the pivoting rear arms 826 rotates each of the pivoting rear arms 826 via each of the connecting arms 829 to lower the height of the front arm outer end 8251 of each of the pivoting rear arms 826, because the height of the front arm outer end 8251 of each of the pivoting rear arms 825 and the height of the rear arm outer end 8261 of each of the pivoting rear arms 826 are synchronously lowered, so that the ground clearance of the mowing device 60 is adjusted. Accordingly, when the telescopic end 8112 of the electric push rod 811 is shifted from the extended state to the retracted state, the electric push rod 811 rotates the rear rotating shaft 822 in the opposite direction through the driving swing arm 812, the rear rotating shaft 822 rotates each of the pivoting front arms 825 synchronously to raise the height of the front arm outer end 8251 of each of the pivoting front arms 825, and at the same time, the rear arm inner end 8262 of each of the pivoting rear arms 826 rotates each of the pivoting rear arms 826 through each of the connecting arms 829 to raise the height of the front arm inner end 3251 of each of the pivoting front arms 825, because the height of the front arm outer end 8251 of each of the pivoting front arms 825 and the height of the rear arm outer end 8261 of each of the pivoting rear arms 826 are raised synchronously, so that the ground clearance of the mowing device 60 is adjusted.
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 (9)
1. An electric lawn mowing machine, comprising:
a frame;
a power supply device, wherein the power supply device is arranged on the frame;
two driving motors, wherein the two driving motors are respectively arranged at two opposite sides of the rear part of the rack, and each driving motor is respectively connected to the power supply device;
a set of wheels, wherein the set of wheels comprises two driving wheels and two driven wheels, each driving wheel is respectively and drivably installed on each driving motor, and each driven wheel is respectively arranged on the opposite front sides of the front part of the frame;
a mowing device, wherein the mowing device is disposed on the housing, and the mowing device is connected to the power supply;
a brake release device, wherein the brake release device is disposed on the frame, wherein the brake release device has a standby state and a release state, and the brake release device is configured to be manually switched between the standby state and the release state; and
and two braking devices, wherein each braking device is respectively arranged on each driving motor and connected to the power supply device, and each braking device is respectively and operatively connected to the brake release device, wherein each braking device respectively has a braking state and a driving state, when the brake release device is in the standby state, each braking device is respectively capable of switching between the braking state and the driving state, and when the brake release device is in the release state, each braking device is kept in the driving state.
2. The electric lawn mower of claim 1, wherein said brake release mechanism comprises a turntable mechanism, a pulling mechanism, two forks, and two linkages, wherein said turntable mechanism is rotatably mounted to said frame in such a manner as to be held between two of said driving motors, wherein one end of said pulling mechanism is mounted to said turntable mechanism at a position offset from a rotational axis of said turntable mechanism, and the other end of said pulling mechanism extends to a rear portion of said frame, wherein each fork is mounted to each of said brake devices, wherein one end of each linkage is mounted to said turntable mechanism at a position offset from a rotational axis of said turntable mechanism, and the other end of each linkage is mounted to each fork.
3. The electric lawnmower of claim 2, wherein the reel mechanism comprises a reel member rotatably mounted to the frame and a retaining projection rotatably mounted to an edge of the reel member, the retaining projection having a retaining aperture, wherein the pulling mechanism comprises a handle, a pulling member having a middle portion movably mounted to the retaining aperture of the retaining projection, and a compression spring member retained between the retaining projection and one end of the pulling member, the other end of the pulling member being connected to the handle.
4. The electric lawn mowing machine according to claim 3, wherein one end of the linkage is rotatably mounted to an edge of the reel element, and the other end of the linkage is rotatably mounted to the fork.
5. The electric lawn mower of claim 3, wherein said linkage comprises a right angle knuckle bearing mounted to said reel element, a knuckle bearing adjustment lever mounted to said fork, and a horizontal knuckle bearing mounted at both ends to said right angle knuckle bearing and said horizontal knuckle bearing, respectively.
6. The electric lawnmower of claim 3, wherein the brake release mechanism comprises a limit mechanism mounted to the frame and having a limit channel, wherein the handle comprises a handle portion and an extension limit portion extending from the handle portion, wherein the extension limit portion of the handle is movably mounted to the limit channel of the limit mechanism to limit the direction of movement of the handle.
7. The electric lawnmower of claim 3, wherein the frame has a limit channel, wherein the handle comprises a handle portion and an extension limit portion extending from the handle portion, wherein the extension limit portion of the handle is movably mounted to the limit channel of the frame to limit the direction of movement of the handle.
8. The electric lawnmower of claim 6, wherein the restraining mechanism comprises at least one stop channel in communication with the restraining channel, wherein the pull handle comprises at least one stop extending outwardly from the extension limiting portion, wherein the stop of the pull handle is capable of passing through the stop channel of the restraining mechanism when the extension limiting portion of the pull handle is moved along the restraining channel of the restraining mechanism, and wherein the stop and the stop channel of the restraining mechanism are misaligned relative to each other when the pull handle is rotated relative to the restraining mechanism to prevent the extension limiting portion of the pull handle from moving along the restraining channel of the restraining mechanism.
9. An electric lawnmower according to any one of claims 1 to 8, wherein the electric lawnmower further comprises an elevation means, wherein the elevation means is provided on the housing and the lawnmower means is provided on the elevation means.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120276714.0U CN215683369U (en) | 2020-03-31 | 2020-03-31 | Brake release device and electric mowing machine |
| CN202020451396.2U CN212936733U (en) | 2020-03-31 | 2020-03-31 | Brake release device and electric mowing machine |
| PCT/CN2020/089444 WO2021196348A1 (en) | 2020-03-31 | 2020-05-09 | Brake release device and electric mowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020451396.2U CN212936733U (en) | 2020-03-31 | 2020-03-31 | Brake release device and electric mowing machine |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120276714.0U Division CN215683369U (en) | 2020-03-31 | 2020-03-31 | Brake release device and electric mowing machine |
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| Publication Number | Publication Date |
|---|---|
| CN212936733U true CN212936733U (en) | 2021-04-13 |
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| CN202020451396.2U Active CN212936733U (en) | 2020-03-31 | 2020-03-31 | Brake release device and electric mowing machine |
| CN202120276714.0U Active CN215683369U (en) | 2020-03-31 | 2020-03-31 | Brake release device and electric mowing machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112449842A (en) * | 2020-03-31 | 2021-03-09 | 丰疆智能软件科技(南京)有限公司 | Brake release device and electric mowing machine |
| USD1014568S1 (en) | 2022-02-14 | 2024-02-13 | Techtronic Cordless Gp | Lawn mower |
| USD1015381S1 (en) | 2022-02-14 | 2024-02-20 | Techtronic Cordless Gp | Lawn mower |
-
2020
- 2020-03-31 CN CN202020451396.2U patent/CN212936733U/en active Active
- 2020-03-31 CN CN202120276714.0U patent/CN215683369U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112449842A (en) * | 2020-03-31 | 2021-03-09 | 丰疆智能软件科技(南京)有限公司 | Brake release device and electric mowing machine |
| USD1014568S1 (en) | 2022-02-14 | 2024-02-13 | Techtronic Cordless Gp | Lawn mower |
| USD1015381S1 (en) | 2022-02-14 | 2024-02-20 | Techtronic Cordless Gp | Lawn mower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN215683369U (en) | 2022-02-01 |
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