CN112825667A

CN112825667A - Mower capable of automatically crossing obstacles

Info

Publication number: CN112825667A
Application number: CN202110192979.7A
Authority: CN
Inventors: 陈梅芹
Original assignee: Beijing Hongmeizi Trading Co ltd
Current assignee: Shandong Ruitai Landscape Machinery Co ltd
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2021-05-25
Anticipated expiration: 2041-02-20
Also published as: CN112825667B

Abstract

The embodiment of the invention discloses a mower capable of automatically crossing obstacles, which comprises a main box body, a trigger fixing seat positioned in the main box body, an obstacle avoidance mechanism positioned on the front side of the trigger fixing seat and a mowing mechanism positioned on the right side of the obstacle avoidance mechanism; a friction strip is fixedly arranged in the trigger fixing seat, and a magnetic sliding block abutted against the friction strip is also arranged in the trigger fixing seat; through the arc guard plate, make this device can push away the edge with the barrier that can promote at the in-process of mowing, avoid the damage of blade, and protection connecting rod and lifter plate make this device can drive the rebound with the blade when meetting the barrier that can't promote, avoid the blade impaired, and through the time of gliding distance control blade whereabouts of magnetism sliding block on the friction strip, make the blade fall when crossing the barrier just, make the area that the reduction that this device can the at utmost was not mowed because of dodging the barrier.

Description

Mower capable of automatically crossing obstacles

Technical Field

The embodiment of the invention relates to the technical field related to greening, in particular to a mower capable of automatically crossing obstacles.

Background

At present, the application of the mower is more and more extensive, the mower has the figure in the aspects of parks, family greening, orchards, farms weeding and the like, but because stones and other obstacles exist on the ground, the blade of the mower can easily reach the obstacles in the mowing process, the blade is worn or even cracked, the frequency of replacing the blade is increased, the blade is cracked and flies out and possibly hit the human body, and the life safety of people is threatened, most of the mowers in the market at present are additionally provided with a protection plate in the front, the obstacles in front of the mower are pushed to the side, but no good solution is provided for the obstacles which cannot be pushed.

Disclosure of Invention

Therefore, the embodiment of the invention provides a mower capable of automatically crossing over obstacles, which solves the problem that blades of the mower are abraded and even cracked due to the fact that the blades collide with hard obstacles such as stones in the mowing process.

In order to achieve the above object, an embodiment of the present invention provides the following:

a mower for automatically crossing obstacles, comprising: the device comprises a main box body, a trigger fixing seat positioned in the main box body, an obstacle avoidance mechanism positioned on the front side of the trigger fixing seat and a mowing mechanism positioned on the right side of the obstacle avoidance mechanism;

a friction strip is fixedly arranged in the trigger fixing seat, and a magnetic sliding block abutted against the friction strip is further arranged in the trigger fixing seat;

the obstacle avoidance mechanism comprises a lifting seat fixedly arranged on the lower end wall of the main box body, a lifting sliding cavity with an upward opening is arranged in the lifting seat, and a lifting rod is vertically and slidably connected in the lifting sliding cavity;

the mowing mechanism comprises a sliding block in sliding connection with the main box body, the sliding block is connected in a rotating mode and extends downwards to a mowing cutter bar on the lower side of the main box body, and a mowing blade is fixedly arranged at the tail end of the lower side of the mowing cutter bar.

On the basis of the technical scheme, the handle extending upwards is fixedly connected to the right end face of the main box body.

On the basis of the technical scheme, a sliding trigger cavity with a forward opening is arranged in the trigger fixing seat, the magnetic sliding block is connected with the sliding trigger cavity in a sliding mode, a contact switch which can be abutted against the magnetic sliding block is fixedly connected to the rear end wall of the sliding trigger cavity, and a trigger spring is fixedly connected between the rear end wall of the sliding trigger cavity and the rear end face of the magnetic sliding block.

On the basis of the technical scheme, the lower end face of the lifting rod and the lifting spring fixedly connected between the lower end walls of the lifting sliding cavity are arranged, the upper end face of the lifting rod is fixedly connected with a lifting plate which extends rightwards and is abutted against the lower end face of the sliding block and extends leftwards, and lifting magnets which can correspond to the magnetic sliding block are fixedly arranged in the front side of the lifting plate.

On the basis of the technical scheme, a protection sliding cavity with an opening towards the left is arranged in the lifting plate, the protection sliding cavity is connected with a protection connecting rod extending towards the left side of the main box body in a sliding fit mode, the right end face of the protection connecting rod is fixedly connected with a protection sliding spring between the right end walls of the protection sliding cavity, and an arc-shaped protection plate is fixedly connected with the left end of the protection connecting rod.

On the basis of the technical scheme, the sliding block is internally and fixedly provided with a mowing motor fixedly connected with the upper end face of the mowing cutter bar, and the sliding block is internally provided with a plurality of continuous limiting cavities which are equidistantly arranged from top to bottom and have right openings.

On the basis of the technical scheme, the upper end wall in the main box body is fixedly connected with a limiting fixing seat located on the right side of the sliding block, a limiting sliding cavity with a left opening is formed in the limiting fixing seat, the limiting magnetic block capable of entering the limiting cavity is connected in the limiting sliding cavity in a sliding fit mode, the right end wall of the limiting sliding cavity is fixedly connected with a limiting electromagnet, and a limiting spring is fixedly connected between the right end face of the limiting magnetic block and the left end face of the limiting electromagnet.

On the basis of the technical scheme, the lower end face of the tail end of the left side of the limiting magnetic block is an arc face, and the lower end wall of the limiting cavity is arc-shaped.

On the basis of the technical scheme, the arc-shaped protection plate is an arc-shaped plate.

On the basis of the technical scheme, the attraction force between the lifting magnet and the magnetic sliding block is greater than the sum of the friction force between the magnetic sliding block and the friction strip and the tension force of the trigger spring.

The embodiment of the invention has the following advantages:

through the arc guard plate, make this device can push away the edge with the barrier that can promote at the in-process of mowing, avoid the damage of blade, and protection connecting rod and lifter plate make this device can drive the rebound with the blade when meetting the barrier that can't promote, avoid the blade impaired, and through the time of gliding distance control blade whereabouts of magnetism sliding block on the friction strip, make the blade fall when crossing the barrier just, make the area that the reduction that this device can the at utmost was not mowed because of dodging the barrier.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the invention, and do not limit the limit conditions of the invention, so that the invention has no technical essence, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the technical contents disclosed in the invention without affecting the efficacy and the achievable purpose of the invention.

Fig. 1 is a schematic view of the overall structure of a mower for automatically crossing an obstacle according to an embodiment of the present invention.

Fig. 2 is a schematic sectional view of the structure in the direction of a-a in fig. 1.

Fig. 3 is an enlarged schematic view of B in fig. 1.

Fig. 4 is an enlarged schematic view of C in fig. 1.

Fig. 5 is a schematic three-dimensional structure of fig. 1 when an obstacle incapable of being pushed is encountered.

Detailed Description

While embodiments of the present invention will be described with reference to particular embodiments, those skilled in the art will readily appreciate that the present invention has additional advantages and benefits that may be realized from the teachings herein, and that the embodiments described are only a few, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-5, the present invention provides a mower capable of automatically crossing over an obstacle, including a main box 10, a trigger fixing seat 51 located in the main box 10, an obstacle avoidance mechanism located in front of the trigger fixing seat 51, and a mowing mechanism located on the right side of the obstacle avoidance mechanism;

a friction strip 55 is fixedly arranged in the trigger fixing seat 51, and a magnetic sliding block 54 abutted against the friction strip 55 is further arranged in the trigger fixing seat 51;

the obstacle avoidance mechanism comprises a lifting seat 39 fixedly arranged on the lower end wall of the main box body 10, a lifting sliding cavity 37 with an upward opening is arranged in the lifting seat 39, and a lifting rod 36 is vertically and slidably connected in the lifting sliding cavity 37;

the mowing mechanism comprises a sliding block 23 which is in sliding connection with the main box body 10, a mowing cutter bar 22 which extends downwards to the lower side of the main box body 10 is connected in the sliding block 23 in a rotating mode, and a mowing blade 21 is fixedly arranged at the tail end of the lower side of the mowing cutter bar 22.

And a handle 11 extending upwards is fixedly connected to the right end face of the main box body 10.

A sliding trigger cavity 52 with a forward opening is arranged in the trigger fixing seat 51, the magnetic sliding block 54 is in sliding connection with the sliding trigger cavity 52, a contact switch 56 capable of being abutted against the magnetic sliding block 54 is fixedly connected to the rear end wall of the sliding trigger cavity 52, and a trigger spring 53 is fixedly connected between the rear end wall of the sliding trigger cavity 52 and the rear end face of the magnetic sliding block 54.

Terminal surface under the lifter 36 with fixedly connected with lift spring 38 between the terminal wall under the lift slip chamber 37, lifter 36 up end fixedly connected with extend right with terminal surface butt and the lifter plate 33 that extends left under the sliding block 23, lifter plate 33 front side internal fixation be equipped with can with the lifting magnet 40 that magnetism sliding block 54 corresponds.

Be equipped with opening protection sliding chamber 34 to the left in the lifter plate 33, sliding fit is connected with and extends to left in protection sliding chamber 34 protection connecting rod 32 on the left side of main tank 10, protection connecting rod 32 right-hand member face with fixedly connected with protection sliding spring 35 between the protection sliding chamber 34 right-hand member wall, protection connecting rod 32 left end fixedly connected with arc guard plate 31.

The sliding block 23 is internally fixed with a mowing motor 24 fixedly connected with the upper end face of the mowing cutter rod 22, and a plurality of continuous limiting cavities 25 which are arranged at equal intervals up and down and have right openings are arranged in the sliding block 23.

Fixedly connected with is located on the upper end wall in the main tank body 10 spacing fixing base 65 on sliding block 23 right side, be equipped with the spacing smooth chamber 63 that the opening is left in the spacing fixing base 65, sliding fit is connected with in the spacing smooth chamber 63 and can get into spacing magnetic path 61 in the spacing chamber 25, fixedly connected with spacing electro-magnet 64 on the wall of spacing smooth chamber 63 right side, spacing magnetic path 61 right-hand member face with fixedly connected with spacing spring 62 between the spacing electro-magnet 64 left end face.

The lower end face of the tail end of the left side of the limiting magnetic block 61 is an arc face, and the lower end wall of the limiting cavity 25 is arc-shaped.

The arc protection plate 31 is an arc plate.

The attraction force between the lifting magnet 40 and the magnetic sliding block 54 is greater than the sum of the friction force between the magnetic sliding block 54 and the friction strip 55 and the tension force of the trigger spring 53.

When the electric weeding machine is used, in a normal weeding process, the mowing motor 24 is abutted with the lifting plate 33, the lifting spring 38 is in a pressed state, the lifting magnet 40 is positioned at the lower side of the magnetic sliding block 54, the trigger spring 53 is in a relaxed state, the magnetic sliding block 54 is abutted with the contact switch 56, the limiting electromagnet 64 is in a closed state, the limiting spring 62 is in a relaxed state, and the limiting magnetic block 61 does not enter the limiting cavity 25;

when encountering a pushable obstacle in the weeding process, the arc-shaped protection plate 31 pushes the obstacle away, so that the mowing blade 21 is prevented from being damaged due to the collision of the obstacle on the mowing blade 21;

when an obstacle which cannot be pushed is encountered, the arc-shaped protection plate 31 is arc-shaped, so that the obstacle can abut against the arc-shaped protection plate 31 to enable the arc-shaped protection plate 31 to drive the protection connecting rod 32 to move upwards in the advancing process of the device, the protection connecting rod 32 drives the sliding block 23 to move upwards through the lifting plate 33, the sliding block 23 drives the mowing motor 24, the mowing cutter bar 22 and the mowing blade 21 to move upwards, the mowing blade 21 is prevented from contacting with the obstacle, and the mowing blade 21 is protected from being damaged;

at this time, the lifting plate 33 drives the lifting magnet 40 to move upward, so that the lifting magnet 40 corresponds to the magnetic sliding block 54, and under the action of the friction strip 55, the magnetic sliding block 54 slowly moves forward against the pulling force of the trigger spring 53 under the action of the attraction force of the lifting magnet 40, and due to different lengths of different obstacles, the corresponding time of the lifting magnet 40 and the magnetic sliding block 54 is different, so that the forward movement distance of the magnetic sliding block 54 is also different.

After the magnetic sliding block 54 is not abutted with the contact switch 56, the contact switch 56 sends a signal to control the limit electromagnet 64 to be started, so that repulsive force is generated between the limit electromagnet 64 and the limit magnetic block 61, the limit magnetic block 61 overcomes the pulling force of the limit spring 62 to move leftwards under the repulsive force of the limit electromagnet 64, and the limit magnetic block 61 cannot limit the sliding block 23 to move upwards through the limit cavity 25 because the lower end surface of the left end of the limit magnetic block 61 is not arc-shaped;

after the arc-shaped protection plate 31 passes through the obstacle, the lifting rod 36 drives the protection connecting rod 32 and the arc-shaped protection plate 31 to rapidly move downwards under the action of gravity and the pulling force of the lifting spring 38 through the lifting plate 33, so that the influence on the mowing blade 21 caused by missing of other obstacles is avoided;

the sliding block 23 is positioned in the limiting cavity 25 because of the limiting magnetic block 61, so that the falling of the sliding block 23 is limited;

at this time, the lifting magnet 40 moves down rapidly along with the lifting plate 33, so that the lifting magnet 40 and the magnetic slider 54 no longer correspond to each other, the attraction between the magnetic slider 54 and the lifting magnet 40 is lost, and the magnetic slider 54 moves backward slowly under the tension of the trigger spring 53 due to the friction bar 55.

When the magnetic sliding block 54 moves backwards to abut against the contact switch 56, the contact switch 56 sends a signal to control the limit electromagnet 64 to be closed, so that the repulsive force between the limit electromagnet 64 and the limit magnetic block 61 disappears, the limit magnetic block 61 moves rightwards under the action of the pulling force of the limit spring 62, the limit magnetic block 61 is separated from the limit cavity 25, the sliding block 23 drives the mowing motor 24, the mowing cutter bar 22 and the mowing blade 21 to move downwards under the action of gravity, the mowing blade 21 can mow at a normal height, and at the moment, the mowing blade 21 just passes over an obstacle, so that the damage of the mowing blade 21 is avoided.

The length of the forward movement of the magnetic sliding block 54 is influenced by the length of the obstacle, so that the time required for resetting the magnetic sliding block 54 is changed, the mowing blade 21 just passes over the obstacle when moving downwards, and the area of abnormal mowing caused by avoiding the obstacle is reduced;

when a continuous obstacle is encountered, in the process of backward movement of the magnetic sliding block 54, the obstacle abuts against the arc-shaped protection plate 31 to enable the arc-shaped protection plate 31 to move upwards, the lifting magnet 40 corresponds to the magnetic sliding block 54 again, the magnetic sliding block 54 moves forwards, and the above processes are repeated, so that the magnetic sliding block 54 moves forwards every time the obstacle is encountered, the magnetic sliding block 54 is prevented from abutting against the contact switch 56 to enable the mowing blade 21 to move downwards, the mowing blade 21 passes the obstacle when moving downwards, and the mowing blade 21 is prevented from being damaged.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A mower for automatically crossing obstacles, comprising: the device comprises a main box body (10), a trigger fixing seat (51) positioned in the main box body (10), an obstacle avoidance mechanism positioned on the front side of the trigger fixing seat (51) and a mowing mechanism positioned on the right side of the obstacle avoidance mechanism;

a friction strip (55) is fixedly arranged in the trigger fixing seat (51), and a magnetic sliding block (54) abutted against the friction strip (55) is also arranged in the trigger fixing seat (51);

the obstacle avoidance mechanism comprises a lifting seat (39) fixedly arranged on the lower end wall of the main box body (10), a lifting sliding cavity (37) with an upward opening is formed in the lifting seat (39), and a lifting rod (36) is vertically and slidably connected in the lifting sliding cavity (37);

the mowing mechanism comprises a sliding block (23) in sliding connection with the main box body (10), a mowing cutter bar (22) extending downwards to the lower side of the main box body (10) is connected in the sliding block (23) in a rotating mode, and a mowing blade (21) is fixedly arranged at the tail end of the lower side of the mowing cutter bar (22).

2. The mower for automatically crossing obstacles according to claim 1, wherein a handle (11) extending upward is fixedly connected to the right end surface of the main housing (10).

3. The mower capable of automatically crossing obstacles according to claim 1, wherein a sliding trigger cavity (52) with a forward opening is arranged in the trigger fixing seat (51), the magnetic sliding block (54) is slidably connected with the sliding trigger cavity (52), a contact switch (56) capable of abutting against the magnetic sliding block (54) is fixedly connected to the rear end wall of the sliding trigger cavity (52), and a trigger spring (53) is fixedly connected between the rear end wall of the sliding trigger cavity (52) and the rear end face of the magnetic sliding block (54).

4. The mower for automatically crossing obstacles according to claim 1, wherein a lifting spring (38) is fixedly connected between the lower end surface of the lifting rod (36) and the lower end wall of the lifting sliding cavity (37), a lifting plate (33) which is rightwards extended to abut against the lower end surface of the sliding block (23) and leftwards extended is fixedly connected to the upper end surface of the lifting rod (36), and a lifting magnet (40) which can correspond to the magnetic sliding block (54) is fixedly arranged in the front side of the lifting plate (33).

5. The mower capable of automatically crossing obstacles according to claim 4, wherein a protective sliding cavity (34) with a leftward opening is formed in the lifting plate (33), a protective connecting rod (32) extending leftward to the left side of the main box body (10) is connected in the protective sliding cavity (34) in a sliding fit manner, a protective sliding spring (35) is fixedly connected between the right end face of the protective connecting rod (32) and the right end wall of the protective sliding cavity (34), and an arc-shaped protection plate (31) is fixedly connected at the left end of the protective connecting rod (32).

6. The mower capable of automatically crossing obstacles according to claim 1, wherein a mowing motor (24) fixedly connected with the upper end surface of the mowing cutter rod (22) is fixedly arranged in the sliding block (23), and a plurality of continuous limiting cavities (25) which are arranged at equal intervals up and down and have right openings are arranged in the sliding block (23).

7. The mower capable of automatically crossing over the obstacle as claimed in claim 6, wherein a limiting fixing seat (65) located on the right side of the sliding block (23) is fixedly connected to the inner upper end wall of the main box body (10), a limiting sliding cavity (63) with a leftward opening is formed in the limiting fixing seat (65), a limiting magnetic block (61) capable of entering the limiting cavity (25) is connected in the limiting sliding cavity (63) in a sliding fit mode, a limiting electromagnet (64) is fixedly connected to the right end wall of the limiting sliding cavity (63), and a limiting spring (62) is fixedly connected between the right end face of the limiting magnetic block (61) and the left end face of the limiting electromagnet (64).

8. The mower capable of automatically crossing the obstacles as claimed in claim 7, wherein the lower end surface of the left end of the limiting magnetic block (61) is an arc surface, and the lower end wall of the limiting cavity (25) is an arc surface.

9. A mower for automatically crossing obstacles according to claim 5, characterized in that said arc-shaped protection plate (31) is an arc-shaped plate.

10. A mower for automatically crossing obstacles according to claim 4, characterized in that the attraction between said lifting magnet (40) and said magnetic slider (54) is greater than the sum of the friction between said magnetic slider (54) and said friction bar (55) and the tension of said trigger spring (53).