Automatic weeding and pesticide spraying equipment for farmland

Abstract

The utility model relates to the field of weeding equipment, in particular to automatic weeding and pesticide spraying equipment for farmland. The device further comprises a movable plate, an L-shaped block, a protection assembly, a pesticide spraying assembly and a cutting assembly. A second motor is started to enable a rotating rod to drive a cutting knife to rotate at a high speed, weeds in a farmland can be cut and smashed, then a brake mechanism on a movable plate is started to enable the movable plate to move front and back at the upper end of a pushing assembly, an L-shaped block moves in the front-back direction, the weeding range can be enlarged, and the weeding efficiency is improved. A protection assembly is started to support a pesticide spraying assembly, an external hose is mounted on a water inlet port of a spray head, then a second electric cylinder is started to adjust the angle of a rotating block, and a third electric cylinder is started to adjust the height of a fixing sleeve, so that the spraying angle is quickly adjusted; a mixed solution of a nutrient solution containing pressure and water is introduced into the spray head to be sprayed out, and then the nutrient solution can be sprayed on the weeding land.

Description

Technical Field

[0001] The utility model belongs to the field of weeding equipment, and in particular relates to automatic weeding and pesticide spraying equipment used in farmland. Background Art

[0002] An automated weeder is a type of agricultural machinery that uses advanced technology to achieve unmanned or semi-automated operation. It is designed to efficiently and accurately remove weeds in farmland, reduce manual labor and improve agricultural production efficiency. With the acceleration of agricultural modernization, automated weeders have gradually become an important part of modern agriculture.

[0003] At present, automated weeders generally use sensors, cameras and image processing technology to identify weeds and crops. However, due to their large size and high cost, automated weeders are difficult to use in small-scale farmland. The automated weeding and pesticide spraying equipment in the existing technology is difficult to quickly weed in uncultivated farmland, and is not convenient to move and spray nutrient solutions, and needs further improvement.

[0004] Therefore, an automated weeding and pesticide spraying equipment for farmland is proposed, which can quickly weed uncultivated farmland and conveniently move and spray nutrient solution. Utility Model Content

[0005] In order to overcome the problem that the automated weeding and spraying equipment in the prior art is difficult to quickly weed uncultivated farmland and is inconvenient to move and spray nutrient solution, an automated weeding and spraying equipment for farmland is proposed.

[0006] The technical scheme of the utility model is: an automated weeding and spraying equipment for farmland, comprising a pushing component; a moving plate, an L-shaped block, a protective component, a spraying component and a cutting component; a moving plate is arranged above the pushing component, a braking mechanism for moving the moving plate is arranged on the moving plate, an L-shaped block is fixedly connected to the upper end of the moving plate, a spraying component for spraying nutrient solution is arranged at the front end of the L-shaped block, a protective component for protecting the spraying component is arranged at the rear end of the L-shaped block, and a cutting component for weeding is arranged at the upper end of the L-shaped block;

[0007] The spraying assembly includes a first hinge seat, a second electric cylinder, a rotating block, a second hinge seat, a third electric cylinder, a fixed sleeve and a spray head; the front right part of the L-shaped block is fixedly connected to the first hinge seat, the inner wall of the first hinge seat is rotatably mounted with the second electric cylinder, the middle part of the right end of the L-shaped block is rotatably mounted with the rotating block, the upper part of the right end of the rotating block is fixedly connected to the second hinge seat, the output shaft of the second electric cylinder is hinged to the second hinge seat, the lower part of the left end of the rotating block is hinged to the third electric cylinder, the upper end of the output shaft of the third electric cylinder is fixedly connected to the fixed sleeve, and the left and right ends of the fixed sleeve are through-fixed with the spray head; the cutting assembly includes a second bearing block, a fourth electric cylinder , a lifting plate, a support body, a second motor, a fixed cylinder, a third slot body, a rotating rod, a cutting knife and a second rubber cylinder; the upper end of the L-shaped block is fixedly connected to the second bearing block, the upper end of the second bearing block is fixedly connected to the fourth electric cylinder, the lower end of the output shaft of the fourth electric cylinder penetrates the second bearing block and is fixedly connected to the lifting plate, the upper end of the lifting plate is fixedly connected to the support body, the upper end of the support body is fixedly connected to the second motor, the lower end of the output shaft of the second motor penetrates the support body and is fixedly connected to the rotating rod, the lower end outer wall of the rotating rod is fixedly connected to the cutting knife, the lower end of the lifting plate is fixedly connected to the fixed cylinder, and the side wall of the fixed cylinder penetrates the third slot body which is evenly distributed.

[0008] Preferably, when in use, the pushing component is pushed to the farmland to be weeded, and then the fourth electric cylinder is turned on to adjust the height of the lifting plate so that the cutting knife can touch the ground, and then the second motor is turned on to make the rotating rod drive the cutting knife to rotate at high speed, so that the weeds in the farmland can be cut and crushed, and then the braking mechanism on the movable plate is turned on, so that the movable plate can move forward and backward at the upper end of the pushing component, so that the L-shaped block moves in the front and rear directions, which can expand the weeding range, and the protective component is turned on to support the spraying component, and the external hose is installed on the water inlet port of the nozzle, and then the second electric cylinder is turned on to adjust the angle of the rotating block, and the third electric cylinder is turned on to adjust the height of the fixing sleeve, so that the angle of the fixing sleeve can be quickly adjusted, thereby realizing the rapid adjustment of the injection angle, and the pressurized nutrient solution and water mixture is passed into the nozzle for spraying, so that the nutrient solution can be sprayed on the weeded land, which solves the problem that the automated weeding and spraying equipment in the prior art is difficult to quickly weed uncultivated farmland and is inconvenient to move and spray nutrient solution.

[0009] Preferably, the pushing assembly includes a bearing plate, a support block, a limit groove, a fixed plate, a guide block, a first roller, a battery, a first bearing block, a controller and a push rod; two support blocks are fixedly connected to the upper end of the bearing plate, and limit grooves are provided at the left and right ends of the support blocks. The support blocks are in an inverted U shape, and the front and rear ends of the recessed parts of the two support blocks are commonly fixedly connected to the fixed plate, and a plurality of first rollers are rotatably installed at the lower end of the bearing plate, the upper end of the bearing plate is fixedly connected to the battery and the first bearing block, the upper end of the first bearing block is fixedly connected to the controller, and the front end of the first bearing block is fixedly connected to the push rod.

[0010] Preferably, two guide members are provided at the upper end of the fixed plate, and the guide members include two guide blocks, and ends of the two guide blocks in each guide member that are close to each other are respectively fitted with left and right ends of the second roller.

[0011] Preferably, the upper and lower ends of the movable plate are respectively fitted with the upper and lower ends of the inner wall of the limiting groove.

[0012] Preferably, the braking mechanism includes a first slot body, a first motor and a second roller; two first slot bodies are penetrated at the front and rear ends of the movable plate, the inner wall of the first slot body is fixedly connected to the first motor, the output ends of the two first motors are opposite to each other, and the output shaft of the first motor passes through the wall layer of the movable plate and is fixedly connected to the second roller.

[0013] Preferably, a second rubber tube is threadedly mounted on the outer wall of the lower end of the fixing tube, and the lower end of the second rubber tube is located above the cutting knife.

[0014] Preferably, the protective component includes a second groove body, a first electric cylinder, a sliding column, a push ring and a first rubber tube; a second groove body is opened through the middle of the front and rear ends of the L-shaped block, the rear end of the L-shaped block is fixedly connected to the first electric cylinder, the left end of the output shaft of the first electric cylinder is fixedly connected to the push ring, the inner wall of the push ring is fixedly connected to the sliding column, the sliding column is slidably arranged on the inner wall of the second groove body, the front end outer wall of the sliding column is fixedly connected to the first rubber tube, and the first rubber tube is located on the left side of the third electric cylinder.

[0015] Beneficial effects of the utility model:

[0016] 1. Push the pushing assembly to the farmland to be weeded, then turn on the fourth electric cylinder to adjust the height of the lifting plate so that the cutting knife can touch the land, then turn on the second motor so that the rotating rod drives the cutting knife to rotate at high speed, so that the weeds in the farmland can be cut and crushed, and then turn on the braking mechanism on the moving plate, so that the moving plate can move forward and backward at the upper end of the pushing assembly, so that the L-shaped block moves in the front and rear directions, which can expand the weeding range, turn on the protective assembly to support the spraying assembly, install the external hose on the water inlet port of the nozzle, then turn on the second electric cylinder to adjust the angle of the rotating block, turn on the third electric cylinder to adjust the height of the fixing sleeve, and then the angle of the fixing sleeve can be quickly adjusted, thereby realizing the rapid adjustment of the injection angle, and the mixed liquid containing pressurized nutrient solution and water is passed into the nozzle for spraying, so that the nutrient solution can be sprayed on the weeded land, which solves the problem that the automated weeding and spraying equipment in the prior art is difficult to quickly weed uncultivated farmland and inconvenient to move and spray nutrient solution;

[0017] 2. When the L-shaped block needs to be moved in the front-back direction, the first motor is turned on to rotate the second roller, and the second roller moves on the upper end of the fixed plate, thereby facilitating the movement of the L-shaped block in the front-back direction. When the height of the cutting knife is used for weeding, the second rubber cylinder can protect the lower end of the fixed cylinder to a certain extent;

[0018] 3. By opening the first electric cylinder to move the push ring in the left and right directions, the position of the sliding column in the left and right directions can be adjusted, and the first rubber tube will support the left end of the third electric cylinder, so that the third electric cylinder can be placed at a certain angle. In addition, the first rubber tube is made of rubber material, which is conducive to stable support of the third electric cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 What is shown is a three-dimensional structural schematic diagram of an automatic weeding and spraying equipment for farmland of the utility model;

[0020] Figure 2 What is shown is a three-dimensional structural schematic diagram of a driving component of an automated weeding and spraying equipment for farmland of the utility model;

[0021] Figure 3 What is shown is a three-dimensional structural schematic diagram of a first bearing block of an automated weeding and spraying device for farmland of the utility model;

[0022] Figure 4 The three-dimensional structure schematic diagram of a movable plate of an automatic weeding and spraying device for farmland of the utility model is shown;

[0023] Figure 5 What is shown is a three-dimensional structural schematic diagram of a protective component of an automated weeding and spraying equipment for farmland according to the utility model;

[0024] Figure 6 What is shown is a three-dimensional structural schematic diagram of a spraying component of an automated weeding and spraying equipment for farmland according to the utility model;

[0025] Figure 7 What is shown is a three-dimensional structural schematic diagram of a cutting component of an automated weeding and spraying equipment for farmland according to the utility model.

[0026] The marks in the attached drawings are: 1. Pushing assembly; 101. Carrying plate; 102. Support block; 103. Limiting groove; 104. Fixing plate; 105. Guide block; 106. First roller; 107. Storage battery; 108. First bearing block; 109. Controller; 110. Push rod; 2. Moving plate; 201. First slot; 202. First motor; 203. Second roller; 3. L-shaped block; 4. Protective assembly; 401. Second slot; 402. First electric cylinder; 403. Sliding column; 404. Push rod Ring; 405, first rubber tube; 5, spray assembly; 501, first hinge seat; 502, second electric cylinder; 503, rotating block; 504, second hinge seat; 505, third electric cylinder; 506, fixed sleeve; 507, spray head; 6, cutting assembly; 601, second bearing block; 602, fourth electric cylinder; 603, lifting plate; 604, support body; 605, second motor; 606, fixed tube; 607, third trough body; 608, rotating rod; 609, cutting knife; 610, second rubber tube. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Example 1: Please refer to Figure 1-Figure 7 , an automated weeding and spraying equipment for farmland, comprising a pushing component 1; a moving plate 2, an L-shaped block 3, a protective component 4, a spraying component 5 and a cutting component 6; a moving plate 2 is arranged above the pushing component 1, a braking mechanism for moving the moving plate 2 is arranged on the moving plate 2, an L-shaped block 3 is fixedly connected to the upper end of the moving plate 2, a spraying component 5 for spraying nutrient solution is arranged at the front end of the L-shaped block 3, a protective component 4 for protecting the spraying component 5 is arranged at the rear end of the L-shaped block 3, and a cutting component 6 for weeding is arranged at the upper end of the L-shaped block 3;

[0029] The spraying assembly 5 includes a first hinge seat 501, a second electric cylinder 502, a rotating block 503, a second hinge seat 504, a third electric cylinder 505, a fixed sleeve 506 and a nozzle 507; the first hinge seat 501 is fixedly connected to the right front end of the L-shaped block 3, the second electric cylinder 502 is rotatably installed on the inner wall of the first hinge seat 501, the rotating block 503 is rotatably installed in the middle of the right end of the L-shaped block 3, the upper right end of the rotating block 503 is fixedly connected to the second hinge seat 504, the output shaft of the second electric cylinder 502 is hinged on the second hinge seat 504, the lower left end of the rotating block 503 is hinged to the third electric cylinder 505, the upper end of the output shaft of the third electric cylinder 505 is fixedly connected to the fixed sleeve 506, and the left and right ends of the fixed sleeve 506 are through-fixed with the nozzle 507; the cutting assembly 6 includes a second bearing block 601, a fourth electric cylinder 602, a lifting plate 603, a support body 604, a second motor 605, a fixed cylinder 606, a third slot body 607, a rotating rod 608, a cutting knife 609 and a second rubber cylinder 610; the upper end of the L-shaped block 3 is fixedly connected to the second bearing block 601, the upper end of the second bearing block 601 is fixedly connected to the fourth electric cylinder 602, the lower end of the output shaft of the fourth electric cylinder 602 passes through the second bearing block 601 and is fixedly connected to the lifting plate 603, the upper end of the lifting plate 603 is fixedly connected to the support body 604, the upper end of the support body 604 is fixedly connected to the second motor 605, the lower end of the output shaft of the second motor 605 passes through the support body 604 and is fixedly connected to the rotating rod 608, the outer wall of the lower end of the rotating rod 608 is fixedly connected to the cutting knife 609, the lower end of the lifting plate 603 is fixedly connected to the fixed cylinder 606, and the side wall of the fixed cylinder 606 is penetrated by a third slot body 607 evenly distributed.

[0030] When in use, the pushing component 1 is pushed to the farmland to be weeded, and then the fourth electric cylinder 602 is turned on to adjust the height of the lifting plate 603 so that the cutting knife 609 can touch the ground, and then the second motor 605 is turned on to make the rotating rod 608 drive the cutting knife 609 to rotate at high speed, so as to cut and crush the weeds in the farmland, and then the braking mechanism on the movable plate 2 is turned on, so that the movable plate 2 can move forward and backward at the upper end of the pushing component 1, so that the L-shaped block 3 moves in the front and rear direction, so as to expand the weeding range, and the protective component 4 is turned on to support the spraying component 5, and the external hose is installed on the water inlet port of the nozzle 507, and then the second electric cylinder 502 is turned on to adjust the angle of the rotating block 503, and the third electric cylinder 505 is turned on to adjust the height of the fixing sleeve 506, so that the angle of the fixing sleeve 506 can be quickly adjusted, thereby realizing the rapid adjustment of the injection angle, and the pressurized nutrient solution and water mixture is passed into the nozzle 507 for spraying, so as to spray the nutrient solution on the weeded land.

[0031] See also Figure 1-Figure 3In this embodiment, the pushing component 1 includes a carrying plate 101, a supporting block 102, a limiting groove 103, a fixing plate 104, a guiding block 105, a first roller 106, a battery 107, a first carrying block 108, a controller 109 and a push rod 110; two supporting blocks 102 are fixedly connected to the upper end of the carrying plate 101, and the limiting grooves 103 are penetrated at the left and right ends of the supporting blocks 102. The supporting blocks 102 are in an inverted U shape, and the front and rear ends of the recessed parts of the two supporting blocks 102 are fixedly connected to the fixing plate 104. A plurality of first rollers 106 are rotatably installed at the lower end of the carrying plate 101, and the battery 107 and the first carrying block 108 are fixedly connected to the upper end of the carrying plate 101. The controller 109 is fixedly connected to the upper end of the first carrying block 108, and the front end of the first carrying block 108 is fixedly connected to the push rod 110. The holding push rod 110 can push the carrying plate 101, so as to facilitate the movement of the entire device in the farmland.

[0032] See also Figure 1-Figure 4 In this embodiment, two guide members are provided at the upper end of the fixed plate 104, and the guide members include two guide blocks 105. The ends of the two guide blocks 105 in each guide member that are close to each other are respectively fitted with the left and right ends of the second roller 203. When the second roller 203 moves in the front-to-back direction, it will move stably along the ends of the two guide blocks 105 in each guide member that are close to each other, thereby facilitating the stable movement of the second roller 203.

[0033] See also Figure 1-Figure 4 In this embodiment, the upper and lower ends of the movable plate 2 are respectively fitted with the upper and lower ends of the inner wall of the limiting groove 103, and the movable plate 2 can move stably at the upper and lower ends of the inner wall of the limiting groove 103.

[0034] See also Figure 4 In this embodiment, the braking mechanism includes a first slot body 201, a first motor 202 and a second roller 203; two first slot bodies 201 are penetrated at the front and rear ends of the movable plate 2, and the inner wall of the first slot body 201 is fixedly connected to the first motor 202, and the output ends of the two first motors 202 are opposite to each other. The output shaft of the first motor 202 passes through the wall layer of the movable plate 2 and is fixedly connected to the second roller 203. When it is necessary to move the L-shaped block 3 in the front and rear directions, the first motor 202 is turned on to rotate the second roller 203, and the second roller 203 will move at the upper end of the fixed plate 104, thereby facilitating the movement of the L-shaped block 3 in the front and rear directions.

[0035] See also Figure 7 In this embodiment, a second rubber tube 610 is threadedly installed on the outer wall of the lower end of the fixed tube 606, and the lower end of the second rubber tube 610 is located above the cutting knife 609. When the cutting knife 609 is used for weeding by high rotation, the second rubber tube 610 can protect the lower end of the fixed tube 606 to a certain extent.

[0036] Example 2: Please refer to Figure 5 On the basis of Example 1, the present application provides a technical solution: the protection component 4 includes a second slot body 401, a first electric cylinder 402, a slide column 403, a push ring 404 and a first rubber tube 405; the second slot body 401 is penetrated through the middle of the front and rear ends of the L-shaped block 3, the rear end of the L-shaped block 3 is fixedly connected to the first electric cylinder 402, the left end of the output shaft of the first electric cylinder 402 is fixedly connected to the push ring 404, the inner wall of the push ring 404 is fixedly connected to the slide column 403, the slide column 403 is slidably arranged on the inner wall of the second slot body 401, and the slide column 403 is slidably arranged on the inner wall of the second slot body 401. 03 is fixedly connected with a first rubber tube 405 on the front end outer wall. The first rubber tube 405 is located on the left side of the third electric cylinder 505. When the first electric cylinder 402 is turned on, the push ring 404 moves in the left and right directions. The position of the sliding column 403 in the left and right directions can be adjusted. The first rubber tube 405 will support the left end of the third electric cylinder 505, so that the third electric cylinder 505 can be placed at a certain angle. In addition, the first rubber tube 405 is made of rubber material, which is conducive to stable support of the third electric cylinder 505.

[0037] Working principle: First, the carrying plate 101 can be pushed by the handheld push rod 110, thereby driving the entire device to move in the farmland;

[0038] Next, the fourth electric cylinder 602 is turned on to adjust the height of the lifting plate 603 so that the cutting blade 609 can touch the ground, and then the second motor 605 is turned on to make the rotating rod 608 drive the cutting blade 609 to rotate at a high speed, so as to cut and crush the weeds in the farmland.

[0039] Afterwards, the brake mechanism on the movable plate 2 is turned on, and the first motor 202 is turned on to rotate the second roller 203, and the second roller 203 moves on the upper end of the fixed plate 104, so as to facilitate the movement of the L-shaped block 3 in the front-back direction, and realize the mobile cutting of weeds in the nearby land;

[0040] Then, the first electric cylinder 402 is turned on to move the push ring 404 in the left-right direction, so that the position of the slide column 403 in the left-right direction can be adjusted, and the first rubber cylinder 405 will support the left end of the third electric cylinder 505, so that the third electric cylinder 505 can be placed at a certain angle. In addition, the first rubber cylinder 405 is made of rubber material, which is conducive to stably supporting the third electric cylinder 505;

[0041] When it is necessary to spray nutrient solution on nearby farmland, install the external hose on the water inlet port of the nozzle 507, then turn on the second electric cylinder 502 to adjust the angle of the rotating block 503, and turn on the third electric cylinder 505 to adjust the height of the fixed sleeve 506. The angle of the fixed sleeve 506 can be quickly adjusted, thereby realizing rapid adjustment of the spraying angle, and the pressurized mixture of nutrient solution and water is passed into the nozzle 507 for spraying, so that the nutrient solution can be sprayed on the weeded land.

[0042] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An automated weeding and spraying device for farmland, comprising a propulsion component (1); characterized in that: It also comprises a moving plate (2), an L-shaped block (3), a protective component (4), a spraying component (5) and a cutting component (6); a moving plate (2) is provided above the pushing component (1); a braking mechanism for moving the moving plate (2) is provided on the moving plate (2); an L-shaped block (3) is fixedly connected to the upper end of the moving plate (2); a spraying component (5) for spraying nutrient solution is provided at the front end of the L-shaped block (3); a protective component (4) for protecting the spraying component (5) is provided at the rear end of the L-shaped block (3); and a cutting component (6) for weeding is provided at the upper end of the L-shaped block (3); The medicine spraying assembly (5) comprises a first hinge seat (501), a second electric cylinder (502), a rotating block (503), a second hinge seat (504), a third electric cylinder (505), a fixed sleeve (506) and a spray head (507); the first hinge seat (501) is fixedly connected to the right front end of the L-shaped block (3); the second electric cylinder (502) is rotatably mounted on the inner wall of the first hinge seat (501); the rotating block (503) is rotatably mounted on the middle of the right end of the L-shaped block (3); the upper right end of the rotating block (503) is fixedly connected to the second hinge seat (504); the output shaft of the second electric cylinder (502) is hinged on the second hinge seat (504); the lower left end of the rotating block (503) is hingedly connected to the third electric cylinder (505); the upper end of the output shaft of the third electric cylinder (505) is fixedly connected to the fixed sleeve (506); and the spray head (507) is fixedly connected to the left and right ends of the fixed sleeve (506); The cutting assembly (6) comprises a second bearing block (601), a fourth electric cylinder (602), a lifting plate (603), a support body (604), a second motor (605), a fixing cylinder (606), a third trough body (607), a rotating rod (608), a cutting knife (609) and a second rubber cylinder (610); the upper end of the L-shaped block (3) is fixedly connected to the second bearing block (601), the upper end of the second bearing block (601) is fixedly connected to the fourth electric cylinder (602), and the lower end of the output shaft of the fourth electric cylinder (602) passes through the second bearing block (601) and is fixedly connected to a lifting plate (603), the upper end of the lifting plate (603) is fixedly connected to a support body (604), the upper end of the support body (604) is fixedly connected to a second motor (605), the lower end of the output shaft of the second motor (605) passes through the support body (604) and is fixedly connected to a rotating rod (608), the outer wall of the lower end of the rotating rod (608) is fixedly connected to a cutting knife (609), the lower end of the lifting plate (603) is fixedly connected to a fixed cylinder (606), and the side wall of the fixed cylinder (606) is penetrated by a third groove body (607) evenly distributed.

2. The automatic weeding and spraying equipment for farmland according to claim 1, characterized in that: The pushing assembly (1) comprises a bearing plate (101), a support block (102), a limiting groove (103), a fixing plate (104), a guide block (105), a first roller (106), a storage battery (107), a first bearing block (108), a controller (109) and a push rod (110); the upper end of the bearing plate (101) is fixedly connected to two support blocks (102); the left and right ends of the support blocks (102) are penetrated by the limiting grooves (103); The support block (102) is in an inverted U shape, and the front and rear ends of the recessed parts of the two support blocks (102) are fixedly connected to a fixing plate (104); a plurality of first rollers (106) are rotatably mounted on the lower end of the bearing plate (101); a storage battery (107) and a first bearing block (108) are fixedly connected to the upper end of the bearing plate (101); a controller (109) is fixedly connected to the upper end of the first bearing block (108); and a push rod (110) is fixedly connected to the front end of the first bearing block (108).

3. The automatic weeding and spraying equipment for farmland according to claim 2, characterized in that: Two guide members are provided at the upper end of the fixed plate (104), and the guide members include two guide blocks (105).

4. The automatic weeding and spraying equipment for farmland according to claim 2, characterized in that: The upper and lower ends of the movable plate (2) are respectively fitted with the upper and lower ends of the inner wall of the limiting groove (103).

5. The automatic weeding and spraying equipment for farmland according to claim 3, characterized in that: The brake mechanism comprises a first slot body (201), a first motor (202) and a second roller (203); two first slot bodies (201) are provided through the front and rear ends of the movable plate (2); the first motor (202) is fixedly connected to the inner wall of the first slot body (201); the output ends of the two first motors (202) are opposite to each other; the output shaft of the first motor (202) passes through the wall layer of the movable plate (2) and is fixedly connected to the second roller (203); and the ends of the two guide blocks (105) in each guide member that are close to each other are respectively fitted with the left and right ends of the second roller (203).

6. The automatic weeding and spraying equipment for farmland according to claim 1, characterized in that: A second rubber tube (610) is threadedly mounted on the outer wall of the lower end of the fixing tube (606), and the lower end of the second rubber tube (610) is located above the cutting knife (609).

7. The automatic weeding and pesticide spraying equipment for farmland according to claim 1, characterized in that: The protection component (4) comprises a second slot body (401), a first electric cylinder (402), a sliding column (403), a push ring (404) and a first rubber tube (405); the second slot body (401) is penetrated through the middle of the front and rear ends of the L-shaped block (3); the first electric cylinder (402) is fixedly connected to the rear end of the L-shaped block (3); the push ring (404) is fixedly connected to the left end of the output shaft of the first electric cylinder (402); the sliding column (403) is fixedly connected to the inner wall of the push ring (404); the sliding column (403) is slidably arranged on the inner wall of the second slot body (401); the first rubber tube (405) is fixedly connected to the outer wall of the front end of the sliding column (403); and the first rubber tube (405) is located to the left of the third electric cylinder (505).

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