CN209914490U

CN209914490U - Mowing robot

Info

Publication number: CN209914490U
Application number: CN201920512030.9U
Authority: CN
Inventors: 孔钊; 高向阳; 韩奎
Original assignee: Suzhou Cleva Precision Machinery and Technology Co Ltd
Current assignee: Suzhou Cleva Precision Machinery and Technology Co Ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-01-10
Anticipated expiration: 2029-04-16

Abstract

The utility model discloses a robot mower, it belongs to forestry machine technical field, including the main part with set up in the cutting mechanism of the bottom of main part, along robot mower's direction of advance cutting mechanism's rear portion sets up the guard plate when the guard plate is in initial operating position, the guard plate is configured to only can be towards rear side unidirectional rotation, the perpendicular distance between the bottommost end of guard plate and the horizon is less than the settlement distance. When the mowing robot moves forwards, obstacles and grass on the ground in front can push the protection plate away from the front to the back, so that the protection plate rotates backwards without blocking the forward movement of the mowing robot; when the rear portion of guard plate is from the back when being used for the guard plate to the forward action, the guard plate is static, can't be rotatory to the front portion of main part, and then prevents foreign matter or child's arm and get into, satisfies the requirement of ann rule and provides more comprehensive safe protection.

Description

Mowing robot

Technical Field

The utility model relates to a forestry machine technical field especially relates to a mowing robot.

Background

The mower is a mechanical tool for trimming lawn and vegetation, and is composed of cutter head, engine, walking wheels, walking mechanism, blades, handrail and control unit. The cutter head is arranged on the travelling wheel, the engine is arranged on the cutter head, and the blade is arranged on the output shaft of the engine.

The blade is positioned at the bottom of the mower, and when the mower works, the blade rotates at a high speed by using the engine to complete weeding work. A danger can arise if a child or operator inadvertently reaches their arm into the bottom of the mower at this time.

Generally, the distance between the machine and the ground can be reduced by lowering the machine chassis or adding a fixed protection plate, and the distance between the fixed protection plate and the ground is smaller than the width of the child arm, so that the child arm cannot extend into the lower part of the machine. But this affects the ability of the machine to walk and cross obstacles, and is prone to damage to the chassis or fenders.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a robot mows to provide more comprehensive safe protection, and do not influence the machine walking and hinder more.

As the conception, the utility model adopts the technical proposal that:

a mowing robot comprises a main body and a cutting mechanism arranged at the bottom end of the main body, wherein a protection plate is arranged at the rear part of the cutting mechanism along the advancing direction of the mowing robot, the protection plate is configured to rotate towards the rear side in a single direction when in an initial working position, and the vertical distance between the bottommost end of the protection plate and the ground plane is smaller than a set distance.

Wherein the set distance is 38 mm.

Wherein, the vertical distance between the bottommost end of the protection plate and the ground plane is equal to 30 mm.

The protection plate is connected with the main body through a rotating shaft, and a limiting part used for limiting the protection plate to rotate forwards is arranged on the front portion of the protection plate on the main body.

Wherein, the cover is equipped with the torsional spring in the pivot, works as the guard plate rotate extremely with during the torsional spring butt, the torsional spring is right the guard plate provides prorsad elastic restoring force.

Wherein, the main part has the shell, be provided with the notch on the shell, the guard plate rotate set up in notch department, spacing portion is the lateral wall of notch.

Wherein, spacing portion for can with the baffle of guard plate butt.

The protection plate comprises a first portion and a second portion, wherein the first portion is connected with the rotating shaft, the second portion extends backwards and downwards from the first portion, and at least part of the first portion can be abutted to the limiting portion.

The end part of the first part is provided with a guide arc surface, and the guide arc surface is in sliding contact with the limiting part in the backward rotating process of the protection plate.

Wherein a reinforcing rib is arranged between the first part and the second part.

Wherein, be provided with walking assembly in the main part, walking assembly includes front wheel and rear wheel, the guard plate is located two between the rear wheel.

The utility model has the advantages that:

the utility model provides a robot mower, through set up the guard plate in the rear portion of cutting mechanism, the guard plate can be backward unidirectional rotation, when the guard plate is in the initial position, robot mower gos forward, and subaerial barrier and the grass in front can push away the guard plate, make the guard plate rotate backward, and can not produce the hindrance to robot mower's advancing; when the foreign matter is used for the guard plate from back to front at the rear portion of guard plate, the guard plate is motionless, can't be rotatory to the front portion of main part, and then prevents the entering of foreign matter or children's arm, satisfies the requirement of ann's rule and when providing more comprehensive safe protection, does not influence the walking of mowing robot and hinder more. The vertical distance between the bottommost end of the protection plate and the ground plane is smaller than the set distance, so that the situation that a child stretches the arm into the lower portion of the main body at the rear portion of the cutting mechanism can be prevented.

Drawings

Fig. 1 is a schematic structural diagram of a mowing robot provided by an embodiment of the present invention;

FIG. 2 is a rear view of the lawn mowing robot of FIG. 1;

FIG. 3 is a partial cross-sectional view of the lawn mowing robot of FIG. 1;

FIG. 4 is an enlarged view at A in FIG. 3;

FIG. 5 is a schematic view of the fender of FIG. 3 in a rearward rotated condition;

fig. 6 is an enlarged view at B in fig. 5.

In the figure:

1. a main body;

2. a protection plate; 21. a first part; 22. a second section; 23. reinforcing ribs; 24. a guiding cambered surface;

3. a rotating shaft;

4. a limiting part;

5. a torsion spring.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 and 2, an embodiment of the present invention provides a mowing robot, which can automatically walk on the ground and complete mowing action. The robot that mows includes main part 1, installs work module and the walking module that is used for pruning the lawn on main part 1, and the walking module generally includes four walking wheels for walking and turning to, and work module includes cutting motor, the transmission shaft of being connected with cutting motor and the cutting mechanism who connects with the transmission shaft and join in marriage. Of course, the mowing robot further comprises a control module for coordinating the working module and the walking module, and the control module can enable the mowing robot to automatically walk on the lawn and mow the lawn under the unattended condition.

The main body 1 includes a housing at an upper portion of the robot and a machine chassis at a lower portion of the robot, the machine chassis being connected to the housing. The cutting motor is preferably a cutting motor, and the cutting mechanism includes a blade holder and a blade mounted on the blade holder, and the cutting mechanism is disposed at the bottom end of the main body 1, so as to facilitate cutting of grass. The cutting motor is fixed at the approximate center of the machine chassis, the output shaft of the cutting motor extends downwards to be connected with the blade support, and the blades are positioned on the periphery of the blade support and rotate along with the blade support.

In the drawings of the embodiments, only a partial structure of the mowing robot is shown.

In the advancing direction of the mowing robot, the guard plate 2 is provided at the rear of the cutting mechanism, and when the guard plate 2 is at the initial position, the guard plate 2 is configured to be rotatable only in one direction toward the rear side, that is, the guard plate 2 is allowed to rotate in the backward direction at this time, and the guard plate 2 is restricted to rotate in the forward direction, that is, when the guard plate 2 is at the initial position, the guard plate 2 can rotate in one direction toward the backward direction, but cannot rotate toward the front of the main body 1.

When the mowing robot is normally placed, the protection plate 2 is at an initial position; when foreign matter acts on the shielding plate 2 from the rear to the front at the rear of the shielding plate 2, the shielding plate 2 is stationary and cannot rotate toward the front of the main body 1, thereby preventing the entry of the foreign matter. When the mowing robot moves forward, the front obstacle and grass on the ground can push away the protection plate 2, so that the protection plate 2 rotates backwards, the forward movement of the mowing robot cannot be hindered, and the walking and obstacle crossing of the mowing robot are not influenced while more comprehensive and safe protection is provided. That is, when a child or an operator tries to insert an arm into the lower side of the main body 1 at the rear of the main body 1, the shielding plate 2 cannot be rotated toward the front of the main body 1, thereby preventing the insertion of the arm.

The vertical distance between the bottommost end of the protection plate 2 and the ground plane is smaller than the set distance. In this embodiment, the set distance is 38mm, that is, the vertical distance between the bottom end of the protection plate 2 and the ground plane is less than 38mm, so that the distance between the bottom end of the protection plate 2 and the ground plane should be less than the width of the arm of the child, and the child can be further prevented from extending the arm into the lower part of the main body 1 at the rear part of the cutting mechanism.

In this embodiment, the vertical distance between the bottom end of the protection plate 2 and the ground plane is equal to 30mm, so as to prevent the arm of the human body from extending into the protection plate and avoid personal injury. The lowermost end of the shield plate 2 is the line or plane having the shortest vertical distance to the ground level without the shield plate 2 being rotated. In other different embodiments, the vertical distance between the lowermost end of the protection plate 2 and the ground plane may also be equal to 28mm, 29mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, etc., as long as it is smaller than the set distance 38 mm.

The four walking wheels comprise two front wheels and two rear wheels, and the protection plate 2 is positioned between the two rear wheels, so that the moving and the steering of the walking wheels are not influenced.

Referring to fig. 3 to 6, the shielding plate 2 may be provided as a flat plate extending in one direction, or may be provided as an integrally provided bent plate as shown in the present embodiment. Specifically, the protection plate 2 includes a first portion 21 connected to the rotating shaft 3 and a second portion 22 extending rearward and downward from the first portion 21, and at least a part of the first portion 21 may abut against the limiting portion 4. First portion 21 can play limiting displacement, and second portion 22 can increase the guard space of guard plate 2, and the subaerial barrier of being convenient for easily pushes away guard plate 2. In the present embodiment, the first portion 21 and the second portion 22 are disposed at an obtuse angle.

In order to ensure the structural strength, a rib 23 is provided between the first portion 21 and the second portion 22, and a plurality of ribs 23 are provided in parallel at intervals. The first part 21, the second part 22 and the reinforcing ribs 23 are integrally formed, so that the processing and the production are convenient.

The protection plate 2 is connected with the main body 1 through a rotating shaft 3, and a limiting part 4 is arranged on the main body 1 in front of the protection plate 2. When the protection plate 2 receives external force towards the rear part of the main body 1, the protection plate 2 rotates around the rotating shaft 3, and therefore when the mowing robot moves forwards, obstacles and grass on the ground in front can push the protection plate 2 away. When protection plate 2 receives the anterior external force of orientation main part 1, protection plate 2 can be blockked by spacing portion 4, and then makes when children or operating personnel try to stretch into the below of main part 1 with the arm at the rear portion of main part 1, protection plate 2 can't be rotatory to the front portion of main part 1, prevents stretching into of arm.

Specifically, one end of the first portion 21 of the protection plate 2, which is far away from the second portion 22, is rotatably connected with the main body 1, and the end of the first portion 21 is provided with a guide arc surface 24. When protection plate 2 when initial position, first portion 21 and spacing portion 4 butt, when protection plate 2 received the external force towards main part 1 rear portion, protection plate 2 is rotatory backward, and direction cambered surface 24 and spacing portion 4 sliding contact rotate to final position when protection plate 2, and direction cambered surface 24 breaks away from with spacing portion 4. The setting of direction cambered surface 24, the guard plate 2 of being convenient for smoothly rotates, prevents to produce between guard plate 2 and the spacing portion 4 and interferes.

The limiting part 4 can be a baffle plate capable of being abutted to the protection plate 2, the baffle plate is located in the front of the protection plate 2, and the baffle plate extends in the vertical direction. In the present embodiment, the stopper portion 4 extends in the vertical direction when the shield plate 2 is at the initial position.

The position-limiting part 4 can also be modified by the existing structure of the main body 1. Main part 1 has the shell, is provided with the notch on the shell, and guard plate 2 rotates and sets up in notch department, and spacing portion 4 is the lateral wall of notch. Here, the side wall of the notch is used as the limiting part 4, so that the number of parts is reduced, the change is small, and the cost is reduced.

The cover is equipped with torsional spring 5 on pivot 3, rotates when 5 butts with torsional spring when guard plate 2, and torsional spring 5 provides prorsad elastic restoring force to guard plate 2, the 2 automatic re-setting of guard plate of being convenient for. When the protection plate 2 receives external force towards the rear part of the main body 1, the protection plate 2 can rotate around the rotating shaft 3, so that when the mowing robot moves forwards, the front above-ground obstacles and grass can push the protection plate 2 open, and after the obstacles are overcome, the protection plate 2 resets under the action of the torsion spring 5.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A robot lawnmower comprising a main body (1) and a cutting mechanism provided at the bottom end of the main body (1), characterized in that a guard plate (2) is provided at the rear of the cutting mechanism in the direction of advance of the robot lawnmower, the guard plate (2) being configured to be rotatable only in one direction toward the rear when the guard plate (2) is in an initial working position, the perpendicular distance between the lowermost end of the guard plate (2) and the ground plane being smaller than a set distance.

2. The robot lawnmower of claim 1, wherein the set distance is 38 mm.

3. Robot lawnmower according to claim 2, characterized in that the vertical distance between the lowermost end of the protection plate (2) and the ground level is equal to 30 mm.

4. The robot mower according to claim 1, wherein the protection plate (2) is connected with the main body (1) through a rotating shaft (3), and a limiting part (4) for limiting the forward rotation of the protection plate (2) is arranged on the main body (1) in front of the protection plate (2).

5. The robot lawnmower according to claim 4, wherein the rotating shaft (3) is sleeved with a torsion spring (5), and when the protection plate (2) rotates to abut against the torsion spring (5), the torsion spring (5) provides a forward elastic restoring force to the protection plate (2).

6. The robot lawnmower according to claim 4, wherein the main body (1) has a housing provided with a notch, the protection plate (2) is rotatably provided at the notch, and the stopper (4) is a side wall of the notch.

7. The robot lawnmower according to claim 4, wherein the stopper (4) is a flap that can abut against the protection plate (2).

8. The robot lawnmower according to claim 4, wherein the protection plate (2) comprises a first portion (21) connected to the rotor shaft (3) and a second portion (22) extending rearward and downward from the first portion (21), at least a part of the first portion (21) being adapted to abut against the stopper portion (4).

9. The robot lawnmower according to claim 8, wherein the first portion (21) has a guide curved surface (24) at an end thereof, and the guide curved surface (24) is in sliding contact with the stopper portion (4) during rearward rotation of the guard plate (2).

10. A robot as claimed in claim 8, characterised in that a reinforcement bar (23) is arranged between the first portion (21) and the second portion (22).

11. A robot lawnmower according to any of claims 1-10, wherein the main body (1) is provided with a walking assembly comprising front and rear wheels, the fender (2) being located between the rear wheels.