CN218072463U

CN218072463U - Grass cutter

Info

Publication number: CN218072463U
Application number: CN202220831487.8U
Authority: CN
Inventors: 王雷; 陈熙
Original assignee: Ecoflow Technology Ltd
Current assignee: Ecoflow Technology Ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-12-20
Anticipated expiration: 2032-04-11

Abstract

The application belongs to the technical field of mowing equipment, and particularly relates to a mower which comprises a mower body and a cutting unit, wherein the mower body is provided with a main beam frame; the cutting unit comprises a protective cover, a driving mechanism and a cutter head assembly, the driving mechanism is connected to the machine body, the protective cover is connected to the driving mechanism, the cutter head assembly is contained in the protective cover and is in transmission connection with the driving mechanism, and the protective cover is arranged below the main beam frame in a hanging mode; the driving mechanism is configured to drive the cutter head assembly to rotate relative to the protective cover and/or drive the protective cover and the cutter head assembly to move along the width direction of the mower; through the design of the main beam frame, the protective cover and the driving mechanism, the mower has better use safety and maintenance convenience.

Description

Grass cutter

Technical Field

The application belongs to the technical field of mowing equipment, and particularly relates to a mower.

Background

With the increasing variety and area of urban greenbelt, the mower is widely applied to greenbelt scenes such as golf courses, home lawn gardens and the like as an important weeding device; the mower comprises a mower body and a cutting unit arranged at the bottom of the mower body, and generally, the mower body is of an integral coating structure, namely, the mower body is coated outside the cutting unit, so that a user can be prevented from being cut due to the fact that the cutting unit is exposed; however, the integral cladding structure increases the difficulty of maintaining the cutting unit, and the convenience of maintaining the cutting unit is poor.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is to provide a lawn mower, can make the cutting unit of lawn mower have better maintenance convenience and safety in utilization.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a lawn mower, comprising:

a body having a main beam frame;

the cutting unit comprises a protective cover, a driving mechanism and a cutter head assembly, the driving mechanism is connected to the machine body, the protective cover is connected to the driving mechanism, the cutter head assembly is contained in the protective cover and is in transmission connection with the driving mechanism, and the protective cover is arranged below the main beam frame in a hanging mode;

the drive mechanism is configured to drive the cutterhead assembly to rotate relative to the guard and/or to drive the guard and cutterhead assembly to move in a width direction of the mower.

Optionally, the main beam frame is in a bent beam shape and is enclosed to form an accommodating area, the cutting unit is located in the accommodating area, and the protection cover is exposed at two opposite sides of the mower in the width direction and protrudes out of the main beam frame.

Optionally, the machine body comprises a front wheel mechanism and a rear wheel mechanism, the front wheel mechanism is fixedly connected with the front end of the main beam frame, and the rear wheel mechanism is rotatably connected with the rear end of the main beam frame.

Optionally, the front wheel mechanism includes a front wheel frame and two front wheels, the two front wheels are respectively connected with two ends of the front wheel frame, and the front end of the main beam frame is fixedly connected with the front wheel frame and located between the two front wheels.

Optionally, both of the front wheels are omni-wheels, and the two omni-wheels are obliquely arranged towards each other along the advancing direction of the mower.

Optionally, the rear wheel mechanism includes a rear wheel frame and two driving wheels, the two driving wheels are respectively connected to two ends of the rear wheel frame, and the rear end of the main beam frame is rotatably connected to the rear wheel frame and located between the two driving wheels.

Optionally, the actuating mechanism includes a first rotary driving member and a connecting assembly, the first rotary driving member passes through the connecting assembly with the protection casing is connected, an output shaft of the first rotary driving member with being connected of roof beam structure, and being configured as the drive the protection casing rotates, and/or, the drive the protection casing with the cutter disc assembly is followed the width direction of lawn mower removes.

Optionally, coupling assembling includes connecting shell, second rotary driving spare and linking arm, first rotary driving spare with the connecting shell is connected, second rotary driving spare install in the connecting shell, the protection casing with the one end of linking arm rotates to be connected, the output shaft of second rotary driving spare with the other end fixed connection of linking arm to be configured as the drive the linking arm rotates, and/or, the drive the protection casing with cutter head assembly follows the direction of height of lawn mower removes.

Optionally, coupling assembling still includes the driven arm, the driven arm with the parallel interval of linking arm sets up, the both ends of driven arm respectively with connect the shell with the protection casing rotates the connection.

Optionally, the bottom opening part of protection casing is provided with the protection rib that a plurality of interval set up.

One or more technical solutions in the lawn mower provided by the present application have at least one of the following technical effects: the mower comprises a cutting unit and a mower body, wherein the mower body is provided with a main beam frame, the cutting unit comprises a protective cover, a driving mechanism and a cutter head assembly, the driving mechanism is connected to the mower body, the protective cover is connected to the driving mechanism, the cutter head assembly is accommodated in the protective cover and is in transmission connection with the driving mechanism, the protective cover is arranged outside the cutter head assembly and can prevent personnel from contacting with the cutter head assembly, so that the personnel are prevented from cutting, the operation safety of the mower is improved, the mower has excellent use safety, and the use safety rule of the mower can be met; meanwhile, the driving mechanism can drive the cutter head assembly to rotate relative to the protective cover and/or drive the protective cover and the cutter head assembly to move along the width direction of the mower, when a cutting unit of the mower needs maintenance, the protective cover and the cutter head assembly can be driven to move to the side of the main beam frame along the width direction of the mower, so that the protective cover and the cutter head assembly are more fully exposed from the side of the main beam frame, and the maintenance operation of the protective cover and the cutter head assembly is more convenient and faster; through the structural design, the mower has better use safety and maintenance convenience.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a first viewing angle of a lawn mower according to an embodiment of the present disclosure.

Fig. 2 is a schematic view of the lawn mower shown in fig. 1 from a second viewing angle.

Fig. 3 is a third perspective view of the lawn mower shown in fig. 1.

Fig. 4 is an exploded view of the mower shown in fig. 1.

Fig. 5 is a schematic structural view of the main beam frame and the front wheel frame in fig. 1.

Fig. 6 is a schematic structural view of the cutting unit in fig. 1.

Wherein, in the figures, the various reference numbers:

10-machine body 11-front wheel mechanism 12-rear wheel mechanism

13-container 14-control panel 15-main beam frame

16-battery 20-cutting unit 21-protective cover

22-cutter head assembly 23-driving mechanism 100-mower

101-accommodation area 111-front wheel frame 112-front wheel

121-rear wheel frame 122-rear driving wheel 151-upper cover

152-bottom shell 153-decorative cover 211-protective rib

221-cutter head 222-blade 231-first rotary drive member

232-connecting component 1521-battery cavity 1522-radiating hole

2321-connecting shell 2322-second rotary drive member 2323-connecting arm

2324-follower arm.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in fig. 1-6, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to fig. 1 to 6 are exemplary and intended to be used for explaining the present application, and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

With the increasing variety and area of urban greenbelt, the mower is widely applied to greenbelt scenes such as golf courses, home lawn gardens and the like as an important weeding device; the mower comprises a mower body and a cutting unit arranged at the bottom of the mower body; mowers typically require maintenance of the cutting unit of the mower after a period of use; in actual maintenance operation, a maintainer needs to enter the bottom of the machine body so as to maintain the cutting unit, but the space at the bottom of the machine body is small, the maintenance difficulty is high, and the maintenance convenience is poor.

Therefore, the embodiment of the application provides a mower, and the cutting unit of the mower has better maintenance convenience and use safety.

As shown in fig. 1 to 6, in an embodiment of the present application, a lawn mower 100 is provided, the lawn mower 100 is a mechanical tool for trimming lawns, vegetation, and the like, and the lawn mower 100 has high weeding efficiency, saves the working time of a weeding worker, and reduces a large amount of human resources.

As shown in fig. 1, the lawn mower 100 includes a machine body 10 and a cutting unit 20: the body 10 has a main beam frame 15; the machine body 10 functions to support and fix the cutting unit 20 as a machine body member of the lawn mower 100, and the machine body 10 has an autonomous traveling capability, can travel on a lawn or vegetation, and can cut grass on the lawn or vegetation while the cutting unit 20 at the bottom of the machine body 10 is traveling, thereby realizing a mowing operation.

In the present embodiment, referring to fig. 3, the cutting unit 20 includes a protective cover 21, a driving mechanism 23 and a cutter head assembly 22, the driving mechanism 23 is connected to the machine body 10, the protective cover 21 is connected to the driving mechanism 23, the cutter head assembly 22 is accommodated in the protective cover 21 and is in transmission connection with the driving mechanism 23, and the protective cover 21 is suspended below the main beam frame 15; it will be appreciated that the protective hood 21 is located at the bottom of the machine body 10, the bottom of the protective hood 21 having an opening through which grass enters the protective hood 21 when the mower 100 is walking on lawns or vegetation, and the cutter head assembly 22 trimming the grass entering the protective hood 21, thereby performing a mowing operation; in consideration of personnel safety, the cutter head assembly 22 is arranged in the protective cover 21, the protective cover 21 fully seals the cutter head assembly 22 and can prevent hands of an operator from directly contacting the blades 222, and the safety of the operation of the mower 100 is improved.

Further, the drive mechanism 23 is configured to drive the cutter head assembly 22 to rotate relative to the guard 21, and/or to drive the guard 21 and the cutter head assembly 22 to move in the width direction (the left-right direction shown in connection with fig. 1) of the mower 100.

The following further describes the lawn mower 100 according to the embodiment of the present application, the lawn mower 100 includes a cutting unit 20 and a machine body 10, the machine body 10 has a main beam frame 15, the cutting unit 20 includes a protective cover 21, a driving mechanism 23 and a cutter head assembly 22, the driving mechanism 23 is connected to the machine body 10, the protective cover 21 is connected to the driving mechanism 23, the cutter head assembly 22 is accommodated in the protective cover 21 and is in transmission connection with the driving mechanism 23, wherein the protective cover 21 covers the cutter head assembly 22, and the protective cover 21 can block a person from contacting the cutter head assembly 22, so as to prevent the person from cutting, improve the safety of the operation of the lawn mower 100, enable the lawn mower 100 to have excellent safety in use and also to meet the safety regulations for the use of the lawn mower 100; moreover, the protective cover 21 is arranged below the main beam frame 15 in a suspended manner, so that the protective cover 21 and the cutter head assembly 22 can be fully exposed out of the main beam frame 15, maintenance of the protective cover 21 and the cutter head assembly 22 is facilitated, and convenience in maintenance is improved, meanwhile, the driving mechanism 23 can drive the cutter head assembly 22 to rotate relative to the protective cover 21 and/or drive the protective cover 21 and the cutter head assembly 22 to move along the width direction of the mower 100, when the cutting unit 20 of the mower 100 needs maintenance, the driving mechanism 23 drives the protective cover 21 and the cutter head assembly 22 to move to the side of the main beam frame 15 along the width direction of the mower 100, so that the protective cover 21 and the cutter head assembly 22 are more fully exposed from the side of the main beam frame 15, and maintenance operation of the protective cover 21 and the cutter head assembly 22 is more convenient and quicker; through the structural design, the mower 100 has better use safety and maintenance convenience.

In another embodiment of the present application, as shown in fig. 1, the main beam frame 15 of the mower 100 is provided in a bent beam shape and is enclosed to form a receiving area 101, the cutting unit 20 is located in the receiving area 101, and the protection covers 21 are exposed at two opposite sides of the mower 100 in the width direction and protrude out of the main beam frame 15. Specifically, the main beam frame 15 is a bent beam-shaped structure, and the width of the protective cover 21 in the left-right direction is larger than that of the main beam frame 15 in the left-right direction, so that the left side and the right side of the cutting unit 20 are exposed and protrude out of the main body; thus, the width of the main beam frame 15 in the left-right direction is small, and the left and right sides of the protection covers 21 are sufficiently exposed to the left and right sides of the main beam frame 15, which further facilitates maintenance of the cutting unit 20 by a maintenance worker, and improves the convenience of maintenance.

In another embodiment of the present application, as shown in fig. 1, the body 10 of the mower 100 is provided to include a front wheel mechanism 11 and a rear wheel mechanism 12, wherein the front wheel mechanism 11 is fixedly coupled to a front end of the main beam frame 15, and the rear wheel mechanism 12 is rotatably coupled to a rear end of the main beam frame 15. Specifically, the rear wheel mechanism 12 is rotationally connected with the rear end of the main beam frame 15 through a rotating structure such as a rotating shaft or a bearing; during the running process of the mower 100, the mower 100 can adapt to an uneven running surface (for example, uneven and rugged or rocky ground) through the relative rotation between the main beam 15 and the rear wheel mechanism 12, so that the mower 100 can meet the mowing requirement of complex terrains, and the trafficability of the mower 100 is improved.

In another embodiment of the present application, as shown in fig. 2 and 3, a mechanism of front wheel 112 of the lawn mower 100 is provided, which includes a front wheel frame 111 and two front wheels 112, wherein the two front wheels 112 are respectively connected to two ends of the front wheel frame 111, and the front end of the main frame 15 is fixedly connected to the front wheel frame 111 and located between the two front wheels 112. It can be understood that the front wheel frame 111 serves as a mounting base for the front wheel 112, and plays a role of stably supporting the front wheel 112, so as to ensure the stable reliability of the walking of the mower 100; moreover, the two front wheels 112 are supported by the front wheel frame 111, and the left and right sides of the main beam frame 15 are completely exposed, so that the mower 100 has better obstacle crossing performance, the mower 100 can adapt to more complicated terrains, and the trafficability of the mower 100 is better.

In another embodiment of the present application, as shown in fig. 2 and 3 in conjunction, the two front wheels 112 of the mower 100 are provided as omni-wheels, and the two omni-wheels are disposed obliquely toward each other along the forward direction of the mower 100. Specifically, the front wheel 112 may be another type of omni wheel such as a mecanum wheel, and since the omni wheel has good gripping ability and can flexibly adapt to different walking directions, the mower 100 with the omni wheel has excellent walking stability and trafficability; in addition, the two omnidirectional wheels are arranged in an inclined manner towards each other along the advancing direction of the mower 100, the front ends of the two omnidirectional wheels are small in size, and the rear ends of the two omnidirectional wheels are large in size, so that the front end of the mower 100 is ship-shaped and can easily enter a narrow space, the trafficability of the mower 100 in the narrow space is improved, and the universality of the mower 100 is better; in addition, when meeting some small-volume obstacles (such as stones, branches and the like), the obliquely arranged omni-directional wheel can provide acting force for the small-volume obstacles to move towards the side of the mower 100, so that the small-volume obstacles can be moved out from the side of the mower 100, and the driving stability and obstacle crossing capability of the mower 100 are improved; when the mower 100 encounters an obstacle and needs to turn to avoid the obstacle, the omni wheels are obliquely arranged, so that the turning radius of the mower 100 can be reduced, and the turning is more flexible, so that the mower 100 can flexibly cross the obstacle, and the obstacle crossing capability of the mower 100 is improved.

In another embodiment of the present application, as shown in fig. 2 and 3, the rear wheel mechanism 12 of the lawn mower 100 is provided to include a rear wheel frame 121 and two rear driving wheels 122, the two rear driving wheels 122 are respectively connected to two ends of the rear wheel frame 121, and the rear end of the main beam frame 15 is rotatably connected to the rear wheel frame 121 and located between the two rear driving wheels 122. It can be understood that the rear wheel frame 121 serves as a mounting base for the rear driving wheel 122, and plays a role in stably supporting the rear driving wheel 122, so as to ensure the stable reliability of the walking of the mower 100; in addition, the driving part of the mower 100 is arranged at the rear end of the mower 100, and the mower 100 adopts a rear-drive structural form, so that the running stability of the mower 100 can be improved; moreover, the two rear driving wheels 122 are supported by the rear wheel frame 121, and both sides of the rear wheel frame 121 are completely exposed, so that the mower 100 has better obstacle crossing performance, can adapt to more complicated terrains, and has better trafficability of the mower 100. Wherein the front wheels 112 are Mecanum wheels and the rear drive wheels 122 are wheels with a rotary drive; the rotary driving member outputs rotary power, so as to drive the rear driving wheel 122 to rotate on the ground, and at the same time, the mecanum wheel also rotates on the ground, and the rotation speed and the steering of the rear driving wheel 122 are adjustable, so as to realize forward movement, backward movement, left rotation, right rotation and in-situ turning around of the mower 100; specifically, the rotary drive member may be a wheel hub motor, a reduction motor, or the like capable of outputting rotary power.

In another embodiment of the present application, as shown in fig. 1 and 2, a control panel 14 for controlling the walk of the mower 100 is provided at the rear end of the main frame 15 of the mower 100. During the operation of the mower 100, due to the personal safety, the operator operates the mower 100 from the rear of the machine body 10, the operator is less in risk of injury, and the operator has better operation safety. In some embodiments, the control panel 14 may be a touch panel, or may be a button control panel 14, where the button control panel 14 may be provided with a control button, or a button assembly with other functions such as an emergency stop button; of course, in other embodiments, the control panel 14 may also adopt a combination of a touch panel and buttons, and the specific structure thereof may be selected according to the actual situation, which is not limited herein.

In another embodiment of the present application, as shown in fig. 4, the main frame 15 of the lawn mower 100 is provided and includes an upper cover 151 and a bottom case 152, the bottom case 152 has an open battery cavity 1521, a control module and a battery 16 are disposed in the battery cavity 1521, and the control module, the cutter head assembly 22 and a rotary driving member on the rear driving wheel 122 are all electrically connected to the battery 16, wherein the battery 16 provides an electric support for walking and mowing operations of the lawn mower 100, and the number of the battery 16 may be one, two or more, and the specific number thereof may be selected according to actual needs, and is not limited herein; the control module can control the forward and reverse rotation of the rear driving wheel 122, thereby controlling the traveling states of the mower 100, such as acceleration, deceleration, forward movement, backward movement and the like, and ensuring the stable traveling of the mower 100. In other embodiments, the control module may also control the operating state of the cutting unit 20, so as to adapt to different mowing requirements, improve the applicable range of the mower 100, and make the operation of the mower 100 more intelligent. In other embodiments, the battery 16 may also be disposed on the rear wheel carrier 121 of the rear wheel mechanism 12.

In the present embodiment, as shown in fig. 5, a heat dissipation hole 1522 communicating with the battery cavity 1521 is formed in the bottom surface of the bottom case 152 to improve the heat dissipation efficiency of the battery 16, wherein the upper cover 151 is connected to the bottom case 152 in a buckling manner and seals an opening of the battery cavity 1521, and the upper cover 151 and the bottom case 152 enclose the main beam frame 15 in a bent beam shape; the control panel 14 and the rear wheel frame 121 are both mounted at the rear end of the bottom shell 152, and the driving mechanism 23 and the front wheel frame 111 are both mounted at the front end of the bottom shell 152; in addition, the rear wheel frame 121 is provided with a containing box 13, the containing box 13 collects the electric connection wires of the rotary driving member, and in other embodiments, the control module is arranged in the containing box 13. Wherein, a decoration cover 153 is further connected to the upper cover 151 to increase the aesthetic appearance of the lawn mower 100.

In this embodiment, a charging device for charging the battery 16 is disposed at the front end of the upper cover 151, and the charging device may be a plug-in type charging device or a wireless charging device; specifically, when the charging device is a plug-in type charging device and the plug-in type charging device is matched with a corresponding plug-in type charging base station, a plug-in connector of the plug-in type charging device is inserted into a corresponding interface on the plug-in type charging base station, so that the charging of the battery 16 is realized, wherein the plug-in connector is provided with a trigger switch and an electromagnet, a magnetic piece is arranged in the interface, when the plug-in connector extends into the interface, the trigger switch is triggered, the electromagnet is electrified to attract the magnetic piece, and at the moment, the plug-in connector is electrically conducted with the interface, so that the charging is realized; when the mower 100 is not required to be charged, the electromagnet is in a power-off state and is nonmagnetic, so that other magnetic impurities cannot be adsorbed onto the electromagnet when the mower 100 works, and therefore the plug connector and the interface are ensured to be reliably contacted, and the charging safety is ensured; when the charging device is a wireless charging device, the wireless charging device is adapted to a corresponding wireless charging base station, so as to realize charging of the battery 16, wherein the wireless charging base station comprises a turnover plate and two pressure contact plates, a wireless charging module is arranged on the turnover plate, the turnover plate is positioned between the two pressure contact walls and is connected with the two pressure contact walls through a rotating shaft, when the mower 100 travels onto the wireless charging device, a front wheel 112 of the mower 100 respectively presses down the two pressure contact walls, and the turnover plate is driven to turn upwards in the process of turning downwards after being pressed, and after the turnover plate turns upwards in place, the wireless charging module on the turnover arm is butted with the charging device, so that the charging of the battery 16 is realized, the operation of personnel is not needed, and the mower 100 can be automatically adapted to the wireless charging device, so that the charging is more convenient; in addition, by adopting the turning charging mode, after the mower 100 is moved in place, the wireless charging module is in butt joint with the charging device on the mower 100, waiting is not needed, and the charging efficiency is improved.

In another embodiment of the present application, a camera is provided on the housing of the lawn mower 100, and is used for capturing pictures of two sides of the housing and feeding back the pictures to the control module, and the control module is configured to determine whether a person approaches the lawn mower 100 according to the pictures, and signal the cutting unit 20 to stop when a person approaches the lawn mower 100. It can be understood that the camera can shoot pictures of two opposite sides of the mower 100, the shot pictures are fed back to the control module, the control module judges whether a person approaches the mower according to the fed-back pictures, if the person is detected, the control module sends a signal to the cutting unit 20, and the cutting unit 20 stops running after receiving the signal, so that the person is protected from being injured, and the running safety of the mower 100 is improved.

In this embodiment, cameras are disposed on both left and right sides of the bottom case 152, and the two cameras respectively capture pictures of both left and right sides of the lawn mower 100 and feed back the pictures to the control module; the camera also has a navigation function, and it can be understood that the mower 100 can judge the surrounding environment through the camera, so that the mower 100 has good environment recognition capability and stability, can accurately avoid obstacles, and can improve mowing efficiency in a fast speed mode. Specifically, the camera can be a monocular camera, a binocular camera or other types of camera devices, and only the functions need to be satisfied, so that limitation is not made herein. The control module can be a single chip microcomputer, a PLC controller or a computer with a mature technology at present, and can read information of the camera and control the rotary driving member on the rear driving wheel 122, the electric component in the driving mechanism and the electric component in the cutter head assembly according to preset conditions and use requirements or according to a preset program, so as to realize intelligent operation of the mower 100.

In another embodiment of the present application, as shown in fig. 1, 3 and 6 in combination, the driving mechanism 23 of the mower 100 is provided to include a first rotary driving member 231 and a connecting assembly 232, the first rotary driving member 231 is connected to the guard 21 through the connecting assembly 232, an output shaft of the first rotary driving member 231 is connected to the main beam frame 15 and is configured to drive the guard 21 to rotate and/or drive the guard 21 and the cutter head assembly 22 to move along the width direction of the mower 100. Specifically, the first rotary driving element 231 drives the protection cover 21 to move in the width direction of the mower 100, so that the left and right movement of the cutting unit 20 is realized, on one hand, the protection cover 21 and the cutter head assembly 22 can move to the left side or the right side of the main beam frame 15, the protection cover 21 is fully exposed out of the main beam frame 15, and the convenience of maintenance is improved; on the other hand, generally, for the safety of driving, the lawn mower 100 travels at a distance from an obstacle (e.g., a wall, a step, etc.), and when the lawn mower 100 encounters an obstacle, the protection cover 21 and the cutter head assembly 22 can move towards the obstacle under the driving of the first rotary driving element 231, so that the protection cover 21 and the cutter head assembly 22 are close to the obstacle, and the grass close to the obstacle is trimmed, thereby achieving the welt mowing of the obstacle.

In another embodiment of the present application, as shown in fig. 1, 3 and 6, the connecting assembly 232 of the lawn mower 100 includes a connecting shell 2321, a second rotary driving member 2322 and a connecting arm 2323, the first rotary driving member 231 is connected to the connecting shell 2321, the second rotary driving member 2322 is installed in the connecting shell 2321, the protecting cover 21 is rotatably connected to one end of the connecting arm 2323, an output shaft of the second rotary driving member 2322 is fixedly connected to the other end of the connecting arm 2323, and is configured to drive the connecting arm 2323 to rotate and/or drive the protecting cover 21 and the cutter head assembly 22 to move along the height direction (the up-down direction shown in fig. 1) of the lawn mower 100. Specifically, the second rotary driving member 2322 drives the connecting arm 2323 to rotate up and down, and in the process of rotating the connecting arm 2323 up and down, the protective cover 21 and the cutter head assembly 22 are driven to move up and down, so that the distance between the cutter head assembly 22 and the lawn is adjusted, thereby adapting to mowing requirements of different lengths, mowing requirements of different types of grass in different seasons, and improving the application range and the universality of the mower 100; the number of the connecting arms 2323 may be two, and the two connecting arms 2323 are respectively disposed on the left and right sides of the connecting shell 2321, so as to improve the reliability of the up-and-down movement of the protection cover 21 and the cutter disc assembly 22.

In another embodiment of the present application, as shown in fig. 1, 3 and 6, the connecting assembly 232 of the lawn mower 100 further includes a driven arm 2324, the driven arm 2324 is disposed in parallel and spaced relation to the connecting arm 2323, and both ends of the driven arm 2324 are rotatably connected to the connecting shell 2321 and the protecting cover 21, respectively. Specifically, during the up-and-down rotation of the connecting arm 2323, the driven arm 2324 is driven to rotate up and down along with the connecting arm, so as to improve the stability and reliability of the up-and-down movement of the shield 21 and the cutter head assembly 22.

In another embodiment of the present application, for the sake of safety, a plurality of protection ribs 211 are provided at intervals at the bottom opening of the protection cover 21 of the lawn mower 100; the protective ribs 211 can prevent the hands of people from extending into the protective cover 21, so that the operation safety of the cutter head assembly 22 is improved; in addition, when the mower 100 is in operation, grass on the lawn or vegetation can extend into the protection cover 21 through the gaps between the protection ribs 211 and be cut by the cutter head assembly 22, so that mowing operation is completed.

In the present embodiment, referring to fig. 3, the cutter head assembly 22 includes a third rotary driving member, a cutter head 221 and a plurality of blades 222, the plurality of blades 222 are mounted on the periphery of the cutter head 221 and are arranged at intervals along the circumferential direction of the cutter head 221, the third rotary driving member is mounted in the protective cover 21, an output shaft of the third rotary driving member is connected with the cutter head 221 and can rotate the cutter head 221 and the blades 222 connected with the cutter head 221, and the mowing operation is realized by the rotation of the blades 222; wherein, the connecting arm 2323 and the driven arm 2324 all rotate with the protection casing 21 through rotating connection structures such as pivot or bearing, the blade disc 221, the blade 222 and the third rotary driving piece are all installed in the protection casing 21, the bottom opening of the protection casing 21 is provided with a plurality of parallel interval setting protection ribs 211, through the effect of protection ribs 211 and protection casing 21, with the omnidirectional sealing treatment of blade disc 221 and blade 222, the safety of use has been guaranteed.

In the present embodiment, the first rotary driver 231, the second rotary driver 2322 and the third rotary driver may be a motor, a rotary platform or the like capable of rotating power.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims

1. A lawnmower, comprising: the method comprises the following steps:

a body having a main beam frame;

2. The mower of claim 1, wherein: the main beam frame is in a bent beam shape and is surrounded to form an accommodating area, the cutting unit is located in the accommodating area, and the two opposite sides of the protective cover in the width direction of the mower are exposed and protrude out of the main beam frame.

3. The mower of claim 1, wherein: the machine body comprises a front wheel mechanism and a rear wheel mechanism, the front wheel mechanism is fixedly connected with the front end of the main beam frame, and the rear wheel mechanism is rotatably connected with the rear end of the main beam frame.

4. A lawnmower as claimed in claim 3 wherein: the front wheel mechanism comprises a front wheel frame and two front wheels, the two front wheels are respectively connected with two ends of the front wheel frame, and the front end of the main beam frame is fixedly connected with the front wheel frame and is positioned between the two front wheels.

5. The mower of claim 4, wherein: the two front wheels are all omni-directional wheels, and the two omni-directional wheels are obliquely arranged towards each other along the advancing direction of the mower.

6. A lawnmower as claimed in claim 3, wherein: the rear wheel mechanism comprises a rear wheel frame and two driving wheels, the two driving wheels are respectively connected with two ends of the rear wheel frame, and the rear end of the main beam frame is rotatably connected with the rear wheel frame and is positioned between the two driving wheels.

7. A lawnmower according to any one of claims 1 to 6, wherein: the actuating mechanism includes first rotary driving spare and coupling assembling, first rotary driving spare passes through coupling assembling with the protection casing is connected, first rotary driving spare's output shaft with the connection of main roof beam structure to be configured as the drive the protection casing rotates, and/or, the drive the protection casing with the cutter head assembly is followed the width direction of lawn mower removes.

8. The lawnmower of claim 7, wherein: coupling assembling is including connecting shell, second rotary driving spare and linking arm, first rotary driving spare with the connecting shell is connected, second rotary driving spare install in the connecting shell, the protection casing with the one end of linking arm is rotated and is connected, the output shaft of second rotary driving spare with the other end fixed connection of linking arm, and configured as the drive the linking arm rotates, and/or, the drive the protection casing with the cutter head assembly is followed the direction of height of lawn mower removes.

9. The mower of claim 8, wherein: coupling assembling still includes the driven arm, the driven arm with the parallel interval of linking arm sets up, the both ends of driven arm respectively with the connecting shell with the protection casing rotates to be connected.

10. A lawnmower according to any one of claims 1 to 6, wherein: the bottom opening part of protection casing is provided with the protection rib that a plurality of interval set up.