Mowing robot capable of spraying pesticide

Abstract

The invention belongs to the technical field of mowing robots, and relates to a mowing robot capable of spraying pesticide. The device comprises a robot main body, a protective cover, a cutter and a collecting unit; the protective cover is fixedly installed on the lower portion of the robot body, a rotating shaft is vertically and rotatably installed in the protective cover, and the cutter is fixedly installed at the lower end of the robot body. The collecting unit comprises an elastic telescopic piece and a push block; the rotating shaft is sleeved with a rotating drum, a plurality of elastic telescopic pieces are connected to the outer circumference of the rotating drum, one end of each elastic telescopic piece is in sliding fit with the inner wall of the protective cover, and a push block is arranged on the portion, between every two adjacent elastic telescopic pieces, of the rotating drum in a sliding mode; a discharging groove is formed in the protective cover, and the axis of the rotating shaft is arranged close to the discharging groove; when the cutter conducts cutting, part of forage enters the protective cover and is located between the two adjacent elastic telescopic pieces, the rotating cylinder rotates, and when the forage between the adjacent elastic telescopic pieces is located at the position corresponding to the discharging groove, the pushing block ejects the forage out.

Description

Technical Field

[0001] The invention belongs to the technical field of lawn mowing robots and relates to a lawn mowing robot capable of spraying pesticides. Background Art

[0002] A lawn mowing robot is a robot that can automatically perform mowing tasks. It usually uses batteries as a power source and is equipped with sensors, computer vision systems and autonomous navigation technology. It can move autonomously on the lawn and perform mowing operations. The lawn mowing robot can effectively reduce the demand for manual labor and is more environmentally friendly and energy-saving, so it is popular among people.

[0003] In the prior art, when using a disc mower to mow the grass, due to the high-speed rotation of the cutting blade, some grass will fly into the casing, resulting in accumulation of grass residues and grass jamming, which in turn causes the cutting blade to rotate at a reduced speed, heat to increase, and fail to operate normally.

[0004] In order to solve the above problems, the present invention proposes a lawn mowing robot capable of spraying pesticides. Summary of the invention

[0005] In order to solve the problems existing in the background technology, the present invention proposes a lawn mowing robot capable of spraying pesticides.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is as follows: a lawn mowing robot that can spray pesticides, including a robot body, a protective cover, a cutter and a collecting unit; the protective cover is fixedly installed at the lower part of the robot body, a rotating shaft is vertically rotatably installed in the protective cover, and the cutter is fixedly installed at the lower end of the rotating shaft; the collecting unit includes an elastic telescopic part and a push block; a rotating cylinder is sleeved on the rotating shaft, and a plurality of elastic telescopic parts are connected to the outer circumference of the rotating cylinder, one end of the elastic telescopic part is slidably matched with the inner wall of the protective cover, and a push block is slidably arranged on the rotating cylinder between adjacent elastic telescopic parts; a discharge trough is arranged on the protective cover, and the axis of the rotating shaft is arranged close to the discharge trough; when the cutter is cutting, part of the grass will enter the protective cover and be between two adjacent elastic telescopic parts, and when the rotating cylinder rotates and the grass between the adjacent elastic telescopic parts is in a position corresponding to the discharge trough, the push block pushes the grass out.

[0007] Furthermore, the discharge chute is located behind the robot body.

[0008] Furthermore, the elastic telescopic part includes a fin plate and a slide plate; the fin plate is fixedly connected to the outer circumference of the rotating drum, a sliding cavity is opened on the fin plate, one end of the slide plate is slidably set in the sliding cavity, a second spring is fixedly connected between the slide plate and the end wall of the sliding cavity, and the slide plate is in sliding contact with the inner wall of the protective cover.

[0009] Furthermore, a connecting hole is provided on the circumferential surface of the rotating drum, the push block is slidably arranged in the connecting hole, and limiting grooves are provided on the upper and lower sides of the connecting hole. A connecting block is elastically slidably arranged in the limiting groove, the connecting block is fixedly connected to the push block, and a first spring is fixedly connected between the connecting block and the end wall of the limiting groove.

[0010] Furthermore, an inclined surface is arranged at one end of the push block away from the axis of the rotating drum, and the lower end of the inclined surface is inclined in a direction close to the axial direction of the rotating drum.

[0011] Furthermore, the rotating drum is rotatably sleeved on the rotating shaft; one end of the pushing block close to the axis of the rotating drum is fixedly connected with a clamping tooth, and the rotating shaft is provided with a clamping groove that cooperates with the rotating shaft.

[0012] Furthermore, an agricultural spraying unit is provided on the robot body, and the pesticide spraying unit includes a medicine box and a spray head. The medicine box is provided on the robot body, and a pump is installed on the robot body. The water inlet end of the pump is connected to the medicine box, and the water outlet end of the pump is connected to a liquid supply pipe, which is connected to the spray head. A column is provided on the robot body, and the spray head is installed on the upper end of the column.

[0013] Compared with the prior art, the present invention has the following beneficial effects: when the cutter is cutting, part of the grass enters the protective cover and is located between the two elastic telescopic parts. As the grass accumulates in the protective cover, the grass pushes the push block to slide inward, and the engaging teeth are engaged in the engaging grooves. Then the rotating shaft drives the rotating drum to rotate, and then the elastic telescopic parts, the push block and the grass in the protective cover rotate synchronously. When the push block is located at a position corresponding to the discharge trough, after losing the limit of the inner wall of the protective cover, the push block slides outward and pushes out the corresponding grass, thereby preventing the grass from further accumulating in the protective cover and affecting the operation of the rotating shaft.

[0014] The drum will only rotate when the grass in the protective cover accumulates to a certain extent, thereby reducing the wear between the slide plate and the protective cover, which is beneficial to increasing the service life of the robot, and at the same time is beneficial to reducing the rotation resistance of the shaft and saving energy.

[0015] The rotating shaft is arranged close to the discharging chute, which is conducive to the forage being released from the protective cover.

[0016] The grass that falls off from the protective cover falls behind the robot body, which prevents the grass from hindering the movement of the robot body and is beneficial to improving the mowing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the protective cover in the present invention;

[0019] Figure 3 is a cross-sectional view of the elastic telescopic member of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the elastic telescopic member in the present invention;

[0021] Figure 5 The present invention Figure 4 A magnified view of part A;

[0022] Figure 6 It is a structural schematic diagram of the rotating shaft in the present invention;

[0023] Figure 7 It is a structural schematic diagram of the push block in the present invention.

[0024] In the figure: 1. Robot body; 2. Medicine box; 3. Pump; 4. Column; 5. Spray head; 6. Liquid supply pipe; 7. Protective cover; 8. Rotating shaft; 9. Cutter; 10. Snap-in groove; 11. Rotating drum; 12. Push block; 13. Snap-in teeth; 14. Inclined surface; 15. Connecting block; 16. First spring; 17. Fin plate; 18. Slide plate; 19. Second spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1-Figure 7 As shown, the technical solution adopted by the present invention is as follows: the lawn mowing robot capable of spraying pesticides comprises a robot body 1, a pesticide spraying unit, a protective cover 7, a cutter 9 and a collecting unit.

[0027] The pesticide spraying unit includes a medicine box 2 and a spray head 5. The medicine box 2 is mounted on the robot body 1, a column 4 is vertically fixedly mounted on the robot body 1, and the spray head 5 is mounted on the upper end of the column 4. A pump 3 is mounted on the robot body 1, the water inlet end of the pump 3 is connected to the medicine box 2, the water outlet end of the pump 3 is connected to a liquid supply pipe 6, and the liquid supply pipe 6 is connected to the spray head 5.

[0028] The protective cover 7 is fixedly installed at the bottom of the robot body 1. The lower end of the protective cover 7 is open. A rotating shaft 8 is installed vertically and rotatably in the protective cover 7. Specifically, a motor is installed in the robot body 1, and the motor shaft of the motor is fixedly connected to the upper end of the rotating shaft 8. The lower end of the rotating shaft 8 extends outside the protective cover 7, and the cutter 9 is fixedly installed at the lower end of the rotating shaft 8. The motor drives the rotating shaft 8 to rotate, and the cutter 9 rotates to cut grass.

[0029] The rotating shaft 8 is not coaxially arranged with the protective cover 7. A discharge trough is provided on the protective cover 7, and the discharge trough is located behind the robot body 1. The axis of the rotating shaft 8 is arranged close to the discharge trough.

[0030] The collecting unit is arranged in the protective cover 7. The collecting unit includes an elastic telescopic member and a push block 12. A rotating drum 11 is rotatably sleeved on the rotating shaft 8, and the rotating drum 11 and the rotating shaft 8 are coaxially arranged. There are multiple elastic telescopic members, and the multiple elastic telescopic members are evenly distributed along the circumference of the axis of the rotating drum 11. One end of the elastic telescopic member is fixedly connected to the outer circumference of the rotating drum 11, and the other end is in sliding contact with the inner wall of the protective cover 7.

[0031] Each elastic telescopic member includes a fin plate 17 and a slide plate 18. One end of the fin plate 17 is fixedly connected to the outer circumference of the drum 11, and the other end of the fin plate 17 is provided with a sliding cavity. One end of the slide plate 18 is slidably arranged in the sliding cavity on the fin plate 17, and a second spring 19 is fixedly connected between the slide plate 18 and the end wall of the sliding cavity. Under the action of the second spring 19, the end of the slide plate 18 that is away from the axis of the drum 11 contacts the inner wall of the protective cover 7.

[0032] A connecting hole is provided on the rotating drum 11 between two adjacent fin plates 17. The push block 12 is slidably arranged in the connecting hole. Specifically, both upper and lower sides of the connecting hole are provided with limiting grooves, and both upper and lower sides of the push block 12 are fixedly connected with connecting blocks 15, which are slidably arranged in the limiting grooves on the same side, and a first spring 16 is fixedly connected between the connecting block 15 and the end wall of the limiting groove. Under the action of the first spring 16, there is a certain interval between the push block 12 and the rotating shaft 8.

[0033] The end of the push block 12 close to the axis of the rotating drum 11 is fixedly connected with a clamping tooth 13, and a plurality of clamping grooves 10 are provided on the outer circumference of the rotating shaft 8, and the plurality of clamping grooves 10 are evenly distributed along the circumference of the axis of the rotating shaft 8. The clamping tooth 13 cooperates with the clamping groove 10, and when the clamping tooth 13 is inserted into the clamping groove 10, the rotating shaft 8 drives the rotating drum 11 to rotate synchronously.

[0034] A slope 14 is formed on one side of the push block 12 away from the axis of the drum 11 , and the lower end of the slope 14 is inclined toward the direction close to the axis of the drum 11 .

[0035] During the mowing process of the cutter 9, some grass will enter the protective cover 7. As the amount of grass entering the protective cover 7 increases, the grass accumulates in the protective cover 7. The grass squeezes the push block 12 through the inclined surface 14, so that the push block 12 moves close to the rotating shaft 8 until the engaging tooth 13 is inserted into the engaging groove 10. After that, the rotating shaft 8 drives the rotating drum 11 to rotate, the elastic telescopic member rotates synchronously, and the slide plate 18 slides along the inner wall of the protective cover 7. Since the axis of the rotating shaft 8 is arranged close to the discharge trough, when the fin plate 17 gradually approaches the discharge trough, the fin plate 17 slides into the slide plate 18. When the push block 12 moves to the position corresponding to the discharge trough, after losing the limit of the inner wall of the protective cover 7, under the action of the first spring 16, the push block 12 moves in the direction away from the axis of the rotating drum 11, and then pushes out the corresponding grass. The grass falls behind the robot body 1.

[0036] Working principle: Initially, under the action of the first spring 16, there is a certain distance between the engaging tooth 13 and the rotating shaft 8. Under the action of the second spring 19, one end of the fin plate 17 abuts against the inner wall of the protective cover 7.

[0037] When mowing, the robot body 1 is moved forward, the motor is started, the shaft 8 rotates, the cutter 9 rotates, and the cutter 9 performs a mowing operation. At this time, the shaft 8 does not drive the drum 11 to rotate.

[0038] As the cutter 9 cuts, part of the grass will enter the protective cover 7, and the grass entering the protective cover 7 is located between two adjacent elastic telescopic parts. As the amount of grass entering increases, the grass accumulates in the protective cover 7. The grass squeezes the push block 12 through the inclined surface 14, so that the push block 12 overcomes the elastic force of the first spring 16 and moves close to the rotating shaft 8. When the engaging teeth 13 are inserted into the rotating shaft 8, the rotating shaft 8 drives the rotating drum 11 to rotate through the push block 12, and the elastic telescopic part rotates with the rotation, and the fin plate 17 slides along the inner wall of the protective cover 7. Since the axis of the rotating shaft 8 is arranged close to the discharge trough, when the elastic telescopic part gradually approaches the discharge trough, the fin plate 17 slides into the slide plate 18. When the push block 12 is in the position corresponding to the discharge trough, after losing the limit of the inner wall of the protective cover 7, under the action of the first spring 16, the push block 12 moves in the direction away from the rotating shaft 8, and then pushes out the corresponding grass, and the grass falls behind the robot body 1 through the discharge trough. Avoiding the grass from hindering the walking of the robot body 1 is beneficial to improving the mowing efficiency. Further, it prevents the grass from accumulating in the protective cover 7 and winding around the rotating shaft 8 to affect the normal operation of the rotating shaft 8. Since the axis of the rotating shaft 8 is arranged close to the discharge chute, when the push block 12 pushes the grass outward, the grass is easier to escape from the protective cover 7. And when the elastic telescopic member rotates close to the discharge chute, the corresponding grass is further compressed, making it easier for the grass to escape.

[0039] After the forage falls off from the protective cover 7 , under the action of the first spring 16 , the push block 12 moves away from the rotating shaft 8 , thereby causing the engaging teeth 13 to be disengaged from the rotating shaft 8 .

[0040] The drum 11 will rotate only when the grass in the protective cover 7 accumulates to a certain extent, thereby reducing the wear between the slide plate 18 and the protective cover 7, which is beneficial to increasing the service life of the robot, and is also beneficial to reducing the rotation resistance of the shaft 8 and saving energy.

[0041] When spraying pesticides, the pump 3 is started to spray the pesticide liquid in the medicine box 2 through the spray head 5. The lawn mower robot can not only mow grass, but also spray pesticides, thereby improving the functionality of the lawn mower robot.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lawn mowing robot that can spray pesticides, characterized by: The invention comprises a robot body (1), a protective cover (7), a cutter (9) and a collecting unit; the protective cover (7) is fixedly mounted on the lower part of the robot body (1); a rotating shaft (8) is vertically rotatably mounted in the protective cover (7); the cutter (9) is fixedly mounted on the lower end of the rotating shaft (8); the collecting unit comprises an elastic telescopic member and a push block (12); a rotating cylinder (11) is sleeved on the rotating shaft (8); a plurality of elastic telescopic members are connected to the outer circumference of the rotating cylinder (11); One end is slidably matched with the inner wall of the protective cover (7), and a push block (12) is slidably arranged on the rotating cylinder (11) between adjacent elastic telescopic parts; a discharge groove is arranged on the protective cover (7), and the axis of the rotating shaft (8) is arranged close to the discharge groove; when the cutter (9) is cutting, part of the grass will enter the protective cover (7) and be located between two adjacent elastic telescopic parts, and when the rotating cylinder (11) rotates and the grass between the adjacent elastic telescopic parts is located at a position corresponding to the discharge groove, the push block (12) pushes the grass out.

2. The lawn mowing robot capable of spraying pesticides according to claim 1, characterized in that: The discharge chute is located at the rear of the robot body (1).

3. The lawn mowing robot capable of spraying pesticides according to claim 1, characterized in that: The elastic telescopic member comprises a fin plate (17) and a slide plate (18); the fin plate (17) is fixedly connected to the outer circumference of the rotating drum (11); a sliding cavity is provided on the fin plate (17); one end of the slide plate (18) is slidably arranged in the sliding cavity; a second spring (19) is fixedly connected between the slide plate (18) and the end wall of the sliding cavity; the slide plate (18) is in sliding contact with the inner wall of the protective cover (7).

4. The lawn mowing robot capable of spraying pesticides according to claim 1, characterized in that: A connecting hole is provided on the circumferential surface of the rotating drum (11), the pushing block (12) is slidably arranged in the connecting hole, and limiting grooves are provided on both the upper and lower sides of the connecting hole. A connecting block (15) is elastically slidably arranged in the limiting groove, the connecting block (15) is fixedly connected to the pushing block (12), and a first spring (16) is fixedly connected between the connecting block (15) and the end wall of the limiting groove.

5. The lawn mowing robot capable of spraying pesticides according to claim 4, characterized in that: An inclined surface (14) is provided at one end of the push block (12) which is away from the axis of the rotating drum (11), and the lower end of the inclined surface (14) is inclined in a direction close to the axial direction of the rotating drum (11).

6. The lawn mowing robot capable of spraying pesticides according to claim 4, characterized in that: The rotating drum (11) is rotatably sleeved on the rotating shaft (8); one end of the pushing block (12) close to the axis of the rotating drum (11) is fixedly connected with a clamping tooth (13), and the rotating shaft (8) is provided with a clamping groove (10) that matches the rotating shaft (8).

7. The lawn mowing robot capable of spraying pesticides according to claim 1, characterized in that: The robot body (1) is provided with an agricultural spraying unit, the pesticide spraying unit comprising a medicine box (2) and a spray head (5), the medicine box (2) being provided on the robot body (1), the robot body (1) being provided with a pump (3), the water inlet end of the pump (3) being connected to the medicine box (2), the water outlet end of the pump (3) being connected to a liquid supply pipe (6), the liquid supply pipe (6) being connected to the spray head (5), the robot body (1) being provided with a column (4), the spray head (5) being installed at the upper end of the column (4).

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