Plant disease control device and method

Abstract

The invention discloses a plant disease control device and method, and relates to the technical field of plant protection, the plant disease control device comprises a moving assembly, the moving assembly comprises a supporting plate, the top of the supporting plate is fixedly connected with a lifting assembly, the lifting assembly comprises a fixing frame and a fixing rod, the fixing frame is fixedly mounted at the top of the supporting plate, and the fixing rod is fixedly mounted at the top of the supporting plate. Two supporting frames are fixedly connected to the top of the fixing frame, and rotating holes are formed in the middles of the outer surfaces of the two supporting frames. The farmland plant disease condition is shot in real time through the visual image acquisition function of the camera, and when the camera shoots that the surfaces of plant leaves have many disease spots and holes, the spraying amount of pesticide is increased, the spraying angle is widened, and the spraying range is widened; when the plant leaf surface shot by the camera has few disease spots and holes, the spraying amount of the pesticide needs to be reduced, and the spraying angle does not need to be adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of plant protection, and in particular to a device and method for preventing and controlling plant diseases. Background Art

[0002] In modern agricultural production, the healthy growth of plants plays a vital role in ensuring food security, agricultural product quality and agricultural economic benefits. However, plant diseases have always been a major problem that plagues agricultural production. Plant diseases refer to the phenomenon that during the growth and development of plants, due to the influence of biological or non-biological factors, their normal physiological and biochemical functions are disturbed, their growth and development are hindered, and their morphological structure becomes abnormal, which ultimately leads to reduced yield, deterioration of quality, and even death. In some years with serious disease outbreaks, it even causes harvest failure in some local areas. Plant diseases not only affect the yield of crops, but also reduce the quality of agricultural products, such as causing fruit deformities, poor color, and decreased taste, which in turn affects their market value and commodity competitiveness.

[0003] In the prior art, chemical pesticides have always been the main means of preventing plant diseases. They have obvious prevention and control effects, rapid effects, and simple operation. They can effectively suppress the spread of diseases in a short period of time. However, traditional backpack spraying devices require manual carrying for a long time to complete the spraying operation, and a large area of ​​the plant surface in the farmland is covered. It is difficult to accurately judge the disease situation and spray the pesticides to the target site in time according to the degree of disease occurrence and the growth conditions of the crops. It does not meet the needs of large-scale agricultural production and will result in missing the best prevention and control period.

[0004] Therefore, we propose a plant disease control device and method to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a plant disease control device and method to solve the problem that the traditional spraying device mentioned in the above background technology cannot spray pesticides accurately to the target part in time according to the degree of disease occurrence and crop growth conditions.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plant disease control device, comprising a moving component, the moving component comprising a support plate, the top of the support plate is fixedly connected with a lifting component, the lifting component comprises a fixing frame and a fixing rod, the fixing frame is fixedly installed on the top of the support plate, the top of the fixing frame is fixedly connected with two supporting frames, the middle of the outer surfaces of the two supporting frames are provided with a rotating hole, the inner walls of the two rotating holes are rotatably connected with a rotating shaft, and a driving gear is fixedly connected between the two rotating shafts, the top of the fixing frame is fixedly connected with a mounting rod near one side, a camera is arranged at the top of the mounting rod, a limiting block is fixedly connected between the tops of the fixing rods, the outer surface of the limiting block is slidably connected with a lifting frame, a row of teeth is fixedly connected to the outer surface of one side of the lifting frame, a reinforcing block is fixedly connected to the bottom end of the lifting frame, a displacement sensor is arranged at the bottom of the reinforcing block, and a rotating component is arranged near the bottom of the outer surface of the other side of the lifting frame, and the rotating component comprises a rotating block.

[0007] Preferably, a fixing block is fixedly connected to the outer surface of one of the support frames, a forward and reverse motor is arranged on the top of the fixing block, and an output shaft of the forward and reverse motor is fixedly connected to one end of one of the rotating shafts.

[0008] Preferably, the outer surface of the row of teeth is meshedly connected with the outer surface of the driving gear, and the cross-section of the limit block is arranged in an I-shape.

[0009] Preferably, the bottom of the support plate is fixedly connected to a supporting plate, the bottom of the supporting plate near the corner is fixedly connected to a moving wheel, and the top of the support plate near one side is fixedly connected to a push rod.

[0010] Preferably, the top of the support plate is fixedly connected to a prevention and control component, the prevention and control component includes a storage box and a water pump, one side outer surface of the storage box is fixedly connected to a drain pipe, the top of the storage box is fixedly connected to a water inlet, the bottom of the storage box is fixedly connected to a fixing plate, and the fixing plate is fixedly installed on the top of the support plate.

[0011] Preferably, the input end of the water pump is fixedly connected to an input pipe, one end of which passes through the interior of the storage box, and the output end of the water pump is fixedly connected to an output pipe, one end of which is provided with a nozzle.

[0012] Preferably, a rotating groove is provided at one end of the lifting frame, and a movable groove is provided at the other end of the lifting frame, the nozzle is arranged inside the rotating block, the top of the rotating block is fixedly connected to a limiting shaft, the bottom of the rotating block is fixedly connected to a driven gear, the inner wall of the rotating groove is rotatably connected to the outer surface of the limiting shaft, and the outer surface of the driven gear is rotatably connected to the inner wall of the movable groove.

[0013] Preferably, a support block is fixedly connected to the inner wall of the lifting frame, a servo motor is arranged on the top of the support block, an output shaft of the servo motor is fixedly connected to a driving gear, and an outer surface of the driving gear is meshingly connected to an outer surface of a driven gear.

[0014] Preferably, a controller is arranged on the top of the support plate, and the controller is used to control the start, stop and operation of the water pump, the camera, the forward and reverse motor, the displacement sensor and the servo motor.

[0015] A method of a plant disease control device comprises the following steps:

[0016] S1. Real-time shooting of the plant disease status in the farmland is performed through the visual image acquisition function of the camera. When the camera captures many disease spots and holes on the surface of the plant leaves, the amount of pesticide spraying is increased. When the camera captures few disease spots and holes on the surface of the plant leaves, the amount of pesticide spraying is reduced. Through the camera, it is possible to capture whether the disease degree of the same plant area is concentrated on the upper or lower part, and start the controller according to the data captured by the camera;

[0017] S2. Start the forward and reverse motors through the controller, so that the output shafts of the forward and reverse motors rotate, thereby driving the driving gear to rotate. At this time, the rotation of the shaft inside the rotating hole can play a limiting role. Through the engagement between the outside of the driving gear and the row of teeth, the lifting frame can move up and down following the rotation of the driving gear. At this time, the limit block plays a limiting role on the lifting frame, so that it can ensure that the movement path is vertical. Through the up and down movement of the lifting frame, the height of the nozzle is driven to be adjusted. At this time, the displacement sensor monitors the height of the lifting frame in real time;

[0018] S3. By holding the push rod and pushing the support plate, the whole device is pushed in the farmland with the cooperation of the moving wheels. When spraying pesticides, the water pump is started to pressurize the water pump to extract the pesticide mixture inside the storage box, and then pass through the output pipe and finally spray out from the nozzle. When filling the pesticide mixture, the pesticide mixture needs to be poured into the storage box from the water injection port. When the liquid inside the storage box needs to be completely discharged, it can be done by opening the sealing cover of the discharge pipe;

[0019] S4. Start the servo motor through the controller to rotate its output shaft, thereby driving the driving gear to rotate. The servo motor is installed on the support block. Since the outside of the driving gear is meshed with the outside of the driven gear, the driven gear can be driven to rotate inside the movable groove, thereby driving the rotating block to rotate. The spraying angle of the nozzle can be adjusted according to the current status of the disease. When the degree of the disease is serious, the nozzle can be swung left and right while spraying to increase the spraying area.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When in use, the visual image acquisition function of the camera is used to capture the disease status of farmland plants in real time. When the camera captures many disease spots and holes on the surface of plant leaves, the amount of pesticide sprayed will be increased, the spraying angle will be adjusted wider, and the spraying range will be increased. When the camera captures fewer disease spots and holes on the surface of plant leaves, the amount of pesticide sprayed will be reduced, and there is no need to adjust the spraying angle. In addition, the camera can capture whether the disease degree of the same plant area is concentrated on the upper or lower part. The controller is started according to the data captured by the camera, and the forward and reverse motors are started by the controller to drive the main The driving gear rotates, and the outer part of the driving gear engages with the row of teeth, so that the lifting frame can move up and down following the rotation of the driving gear. At this time, the limit block limits the lifting frame, so that it can ensure that the movement path is vertical. The height of the nozzle is adjusted by the up and down movement of the lifting frame. At this time, the displacement sensor monitors the height of the lifting frame in real time, and can more accurately determine the height of the nozzle, which solves the problem that traditional backpack prevention and control devices are difficult to accurately determine the disease situation and can spray pesticides accurately to the target part in time according to the degree of disease occurrence and the growth status of crops, and can meet the needs of large-scale agricultural production;

[0022] 2. When in use, push the support plate by holding the push rod, and push the whole device in the farmland with the cooperation of the moving wheels. When spraying pesticides, start the water pump to pressurize the water pump to extract the pesticide mixture in the storage box, then pass through the output pipe, and finally spray out from the nozzle. When filling the pesticide mixture, pour the pesticide mixture into the storage box from the water injection port. When the liquid in the storage box needs to be completely discharged, open the sealing cover of the discharge pipe;

[0023] 3. When in use, the servo motor is started through the controller to drive the driving gear to rotate. The servo motor is installed on the support block. Since the outside of the driving gear is meshed with the outside of the driven gear, the driven gear can be driven to rotate inside the movable groove, thereby driving the rotating block to rotate. At the same time, the limit shaft rotates inside the rotating groove, which can prevent the rotating block from tipping over when it rotates left and right. The spraying angle of the nozzle is adjusted according to the current status of the disease. When the degree of disease is serious, the nozzle is swung left and right while spraying to increase the spraying area. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A first-view stereoscopic diagram of a plant disease control device according to the present invention;

[0025] Figure 2 A second perspective stereoscopic image of a plant disease control device according to the present invention;

[0026] Figure 3 A third perspective stereoscopic diagram of a plant disease control device according to the present invention;

[0027] Figure 4 It is a side perspective view of a lifting component part of a plant disease control device of the present invention;

[0028] Figure 5 A partially cutaway perspective view of a lifting assembly of a plant disease control device according to the present invention;

[0029] Figure 6 It is a perspective view of the structure of the rotating component of a plant disease control device of the present invention;

[0030] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle;

[0031] Figure 8 This is a three-dimensional view of the structure of the rotating component part of the plant disease control device of the present invention at another angle.

[0032] In the figure:

[0033] 1. Mobile assembly; 101. Support plate; 102. Support plate; 103. Mobile wheel; 104. Push rod; 2. Prevention assembly; 201. Storage box; 202. Drain pipe; 203. Water inlet; 204. Fixed plate; 205. Input pipe; 206. Water pump; 207. Output pipe; 208. Sprinkler; 3. Lifting assembly; 301. Fixed frame; 302. Mounting rod; 303. Camera; 304. Fixed block; 305. Forward and reverse motor; 3 06, support frame; 307, rotating hole; 308, rotating shaft; 309, fixing rod; 310, limiting block; 311, lifting frame; 312, row of teeth; 313, reinforcing block; 314, displacement sensor; 315, rotating slot; 316, movable slot; 317, driving gear; 4, rotating assembly; 401, rotating block; 402, driven gear; 403, supporting block; 404, servo motor; 405, limiting shaft; 406, driving gear; 5, controller. DETAILED DESCRIPTION

[0034] 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 implementation regulations described 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.

[0035] Example 1: Reference Figure 1-Figure 8As shown, the present invention provides a technical solution: a plant disease control device, comprising a moving component 1, the moving component 1 comprises a support plate 101, the top of the support plate 101 is fixedly connected with a lifting component 3, the lifting component 3 comprises a fixing frame 301 and a fixing rod 309, the fixing frame 301 is fixedly installed on the top of the support plate 101, the top of the fixing frame 301 is fixedly connected with two supporting frames 306, the middle of the outer surfaces of the two supporting frames 306 are provided with a rotating hole 307, the inner walls of the two rotating holes 307 are rotatably connected with a rotating shaft 308, the two rotating shafts 308 are fixedly connected with a driving gear 317 between the two rotating shafts 308, the top of the fixing frame 301 is fixedly connected with a mounting rod 302 near one side, the top of the mounting rod 302 is provided with a camera 303, the top of the fixing rod 309 is fixedly connected with a limiting block 310, the outer surface of the limiting block 310 is slidably connected with a lifting frame 311, and the lifting frame 31 1 is fixedly connected with a row of teeth 312 on the outer surface of one side, a reinforcing block 313 is fixedly connected with the bottom end of the lifting frame 311, a displacement sensor 314 is arranged at the bottom of the reinforcing block 313, a rotating assembly 4 is arranged near the bottom of the outer surface of the other side of the lifting frame 311, the rotating assembly 4 includes a rotating block 401, the nozzle 208 is arranged inside the rotating block 401, the outer surface of one of the support frames 306 is fixedly connected with a fixed block 304, a forward and reverse motor 305 is arranged on the top of the fixed block 304, the output shaft of the forward and reverse motor 305 is fixedly connected with one end of one of the rotating shafts 308, the outer surface of the row of teeth 312 is meshed with the outer surface of the driving gear 317, the cross-section of the limit block 310 is arranged in an I-shape, a controller 5 is arranged on the top of the support plate 101, and the controller 5 is used to control the start, stop and operation of the water pump 206, the camera 303, the forward and reverse motor 305, the displacement sensor 314 and the servo motor 404.

[0036] In this embodiment, when in use, the controller 5 controls the forward and reverse motors 305, and is electrically connected to the camera 303 and the displacement sensor 314. First, the nozzle 208 is installed inside the rotating block 401. When preventing and controlling farmland plant diseases, the entire prevention and control device is moved to the farmland to work. During the movement, the visual image acquisition function of the camera 303 is used to capture the farmland plant disease status in real time. When the camera 303 captures many disease spots and holes on the surface of the plant leaves, the amount of pesticide sprayed is increased, the spraying angle is adjusted wider, and the spraying range is increased. When the camera 303 captures few disease spots and holes on the surface of the plant leaves, the amount of pesticide sprayed is reduced, and there is no need to adjust the spraying angle. In addition, the camera 303 can capture whether the disease degree of the same plant area is concentrated on the top or the bottom, and the control is started according to the data captured by the camera 303. The device 5 controls the start of the forward and reverse motor 305 through the controller 5, so that the output shaft of the forward and reverse motor 305 rotates, thereby driving the driving gear 317 to rotate. At this time, the rotation of the shaft 308 inside the rotating hole 307 can play a limiting role. Through the engagement between the outside of the driving gear 317 and the row of teeth 312, the lifting frame 311 can move up and down following the rotation of the driving gear 317. At this time, the limit block 310 plays a limiting role on the lifting frame 311, so that it can ensure that the movement path is vertical. Through the up and down movement of the lifting frame 311, the height of the nozzle 208 is driven to be adjusted. At this time, the displacement sensor 314 monitors the height of the lifting frame 311 in real time, and the height of the nozzle 208 can be more accurately determined. The problem that the traditional backpack prevention and control device is difficult to accurately determine the disease situation and timely spray the pesticide to the target part according to the degree of disease occurrence and the growth status of the crop can be solved, which can meet the needs of large-scale agricultural production.

[0037] Embodiment 2: Figure 1-Figure 8As shown, the bottom of the support plate 101 is fixedly connected to the supporting plate 102, the bottom of the supporting plate 102 is fixedly connected to the moving wheel 103 near the corner, the top of the support plate 101 is fixedly connected to the push rod 104 near one side, the top of the support plate 101 is fixedly connected to the prevention and control component 2, the prevention and control component 2 includes a storage box 201 and a water pump 206, the outer surface of one side of the storage box 201 is fixedly connected to the drain pipe 202, the top of the storage box 201 is fixedly connected to the water injection port 203, and the bottom of the storage box 201 is fixedly connected to the fixed Plate 204, the fixed plate 204 is fixedly installed on the top of the supporting plate 101, the input end of the water pump 206 is fixedly connected with the input pipe 205, one end of the input pipe 205 passes through the interior of the storage box 201, the output end of the water pump 206 is fixedly connected with the output pipe 207, one end of the output pipe 207 is provided with a nozzle 208, and the top of the supporting plate 101 is provided with a controller 5, and the controller 5 is used to control the start and stop and operation of the water pump 206, the camera 303, the forward and reverse motor 305, the displacement sensor 314, and the servo motor 404.

[0038] In this embodiment, when in use, the support plate 101 is pushed by holding the push rod 104, and the entire device is pushed in the farmland with the cooperation of the moving wheel 103. When spraying pesticides, the water pump 206 is started to pressurize the water pump 206 to extract the pesticide mixture inside the storage box 201, and then pass through the output pipe 207 and finally spray out from the nozzle 208 to complete the plant disease prevention and control. When filling the pesticide mixture, the pesticide mixture needs to be poured into the storage box 201 from the water injection port 203. When the liquid inside the storage box 201 needs to be completely discharged, it can be done by opening the sealing cover of the discharge pipe 202.

[0039] Embodiment three: Figure 1-Figure 8 As shown, a rotating groove 315 is provided at one end of the lifting frame 311, and a movable groove 316 is provided at the other end of the lifting frame 311. The nozzle 208 is arranged inside the rotating block 401. The top of the rotating block 401 is fixedly connected to the limiting shaft 405, and the bottom of the rotating block 401 is fixedly connected to the driven gear 402. The inner wall of the rotating groove 315 is rotatably connected to the outer surface of the limiting shaft 405, and the outer surface of the driven gear 402 is rotatably connected to the inner wall of the movable groove 316. The inner wall of the lifting frame 311 is fixedly connected to the supporting block 403, and a servo motor 404 is arranged on the top of the supporting block 403. The output shaft of the servo motor 404 is fixedly connected to the driving gear 406, and the outer surface of the driving gear 406 is meshed with the outer surface of the driven gear 402. A controller 5 is arranged on the top of the support plate 101, and the controller 5 is used to control the start, stop and operation of the water pump 206, the camera 303, the forward and reverse motor 305, the displacement sensor 314 and the servo motor 404.

[0040] In this embodiment, when in use, the controller 5 controls the start of the servo motor 404 to rotate its output shaft, thereby driving the drive gear 406 to rotate. The servo motor 404 is installed on the support block 403. Since the outer portion of the drive gear 406 is meshed with the outer portion of the driven gear 402, the driven gear 402 can be driven to rotate inside the movable groove 316, thereby driving the rotating block 401 to rotate. At the same time, since the limit shaft 405 rotates inside the rotating groove 315, it plays a limiting role, and the rotating block 401 will not fall over when it rotates left and right, thereby achieving the benefit of driving the spraying angle of the nozzle 208 to adjust the spraying angle of the nozzle 208. The spraying angle of the nozzle 208 can be adjusted according to the current status of the disease. When the degree of the disease is serious, the nozzle 208 can be swung left and right while spraying to increase the spraying area.

[0041] The method and working principle of the device are as follows: when in use, the support plate 101 is pushed by holding the push rod 104, and the whole device is pushed in the farmland with the cooperation of the moving wheel 103. When spraying pesticides, the water pump 206 is started to pressurize the water pump 206 to extract the pesticide mixture in the storage box 201, and then pass through the output pipe 207, and finally spray out from the nozzle 208 to complete the plant disease prevention and control. When filling the pesticide mixture, the pesticide mixture needs to be poured into the storage box 201 from the water injection port 203. When the liquid in the storage box 201 needs to be completely discharged, it can be done by opening the sealing cover of the discharge pipe 202. When in use, the controller 5 controls the forward and reverse motors 305, and at the same time cooperates with the camera The camera 303 and the displacement sensor 314 are electrically connected. First, the nozzle 208 must be installed inside the rotating block 401. When preventing and controlling farmland plant diseases, the entire prevention and control device is moved to the farmland to work. During the movement, the visual image acquisition function of the camera 303 is used to capture the farmland plant disease status in real time. When the camera 303 captures many disease spots and holes on the surface of the plant leaves, the amount of pesticide sprayed is increased, the spraying angle is adjusted wider, and the spraying range is increased. When the camera 303 captures few disease spots and holes on the surface of the plant leaves, the amount of pesticide sprayed is reduced, and there is no need to adjust the spraying angle. In addition, the camera 303 can capture the same Whether the degree of disease in a plant area is concentrated at the top or at the bottom, the controller 5 is started according to the data captured by the camera 303, and the forward and reverse motor 305 is started by the controller 5 to rotate the output shaft of the forward and reverse motor 305, thereby driving the driving gear 317 to rotate. At this time, the rotation of the shaft 308 inside the rotating hole 307 can play a limiting role. Through the engagement between the outside of the driving gear 317 and the row of teeth 312, the lifting frame 311 can move up and down following the rotation of the driving gear 317. At this time, the limit block 310 plays a limiting role on the lifting frame 311, so that it can ensure that the movement path is vertical. Through the up and down movement of the lifting frame 311, the height of the nozzle 208 is adjusted. The displacement sensor 314 monitors the height of the lifting frame 311 in real time, and can more accurately determine the height of the nozzle 208. When in use, the support plate 101 is pushed by holding the push rod 104, and the entire device is pushed in the farmland with the cooperation of the moving wheel 103. When spraying pesticides, the water pump 206 is started to pressurize the water pump 206 to extract the pesticide mixture inside the storage box 201, and then pass through the output pipe 207 and finally spray out from the nozzle 208 to complete the plant disease prevention and control. When filling the pesticide mixture, the pesticide mixture needs to be poured into the storage box 201 from the water inlet 203. When the liquid inside the storage box 201 needs to be completely discharged, it can be done by opening the sealing cover of the discharge pipe 202.

[0042] The wiring diagram of the water pump 206, camera 303, forward and reverse motor 305, displacement sensor 314, servo motor 404 and controller 5 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the water pump 206, camera 303, forward and reverse motor 305, displacement sensor 314, servo motor 404 and controller 5 will not be explained in detail.

[0043] 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 plant disease control device, comprising a moving assembly (1), wherein the moving assembly (1) comprises a support plate (101), and a lifting assembly (3) is fixedly connected to the top of the support plate (101), characterized in that: The lifting assembly (3) comprises a fixing frame (301) and a fixing rod (309), wherein the fixing frame (301) is fixedly mounted on the top of the supporting plate (101), and the top of the fixing frame (301) is fixedly connected to two supporting frames (306), and a rotating hole (307) is provided in the middle of the outer surface of the two supporting frames (306), and a rotating shaft (308) is rotatably connected between the inner walls of the two rotating holes (307), and a driving gear (317) is fixedly connected between the two rotating shafts (308), and a mounting rod (302) is fixedly connected to the top of the fixing frame (301) near one side, and the A camera (303) is arranged at the top end of the mounting rod (302); a limiting block (310) is fixedly connected between the top ends of the fixing rods (309); a lifting frame (311) is slidably connected to the outer surface of the limiting block (310); a row of teeth (312) is fixedly connected to the outer surface of one side of the lifting frame (311); a reinforcing block (313) is fixedly connected to the bottom end of the lifting frame (311); a displacement sensor (314) is arranged at the bottom of the reinforcing block (313); a rotating assembly (4) is arranged near the bottom of the outer surface of the other side of the lifting frame (311); and the rotating assembly (4) comprises a rotating block (401).

2. The plant disease control device according to claim 1, characterized in that: A fixing block (304) is fixedly connected to the outer surface of one of the support frames (306), a forward and reverse motor (305) is arranged on the top of the fixing block (304), and an output shaft of the forward and reverse motor (305) is fixedly connected to one end of one of the rotating shafts (308).

3. The plant disease control device according to claim 2, characterized in that: The outer surface of the row of teeth (312) is meshedly connected with the outer surface of the driving gear (317), and the cross section of the limit block (310) is arranged in an I-shape.

4. The plant disease control device according to claim 3, characterized in that: The bottom of the support plate (101) is fixedly connected to a supporting plate (102), the bottom of the supporting plate (102) near the corner is fixedly connected to a moving wheel (103), and the top of the support plate (101) near one side is fixedly connected to a push rod (104).

5. The plant disease control device according to claim 4, characterized in that: The top of the support plate (101) is fixedly connected to a prevention and control component (2), the prevention and control component (2) comprises a storage box (201) and a water pump (206), one side outer surface of the storage box (201) is fixedly connected to a liquid discharge pipe (202), the top of the storage box (201) is fixedly connected to a water injection port (203), the bottom of the storage box (201) is fixedly connected to a fixing plate (204), and the fixing plate (204) is fixedly mounted on the top of the support plate (101).

6. The plant disease control device according to claim 5, characterized in that: The input end of the water pump (206) is fixedly connected to an input pipe (205), one end of which passes through the interior of the storage box (201); the output end of the water pump (206) is fixedly connected to an output pipe (207), one end of which is provided with a nozzle (208).

7. The plant disease control device according to claim 6, characterized in that: A rotating groove (315) is provided at one end of the lifting frame (311), and a movable groove (316) is provided at the other end of the lifting frame (311); the nozzle (208) is arranged inside the rotating block (401); the top of the rotating block (401) is fixedly connected to a limiting shaft (405); the bottom of the rotating block (401) is fixedly connected to a driven gear (402); the inner wall of the rotating groove (315) is rotatably connected to the outer surface of the limiting shaft (405); and the outer surface of the driven gear (402) is rotatably connected to the inner wall of the movable groove (316).

8. The plant disease control device according to claim 7, characterized in that: A support block (403) is fixedly connected to the inner wall of the lifting frame (311), a servo motor (404) is arranged on the top of the support block (403), an output shaft of the servo motor (404) is fixedly connected to a driving gear (406), and an outer surface of the driving gear (406) is meshedly connected to an outer surface of a driven gear (402).

9. The plant disease control device according to claim 8, characterized in that: A controller (5) is arranged on the top of the support plate (101), and the controller (5) is used to control the start, stop and operation of the water pump (206), the camera (303), the forward and reverse motor (305), the displacement sensor (314) and the servo motor (404).

10. A method for plant disease control device, characterized in that, The plant disease control device according to claim 9 is used, comprising the following steps: S1. Real-time photography of the disease status of farmland plants is performed through the visual image acquisition function of the camera (303). When the camera (303) captures many disease spots and holes on the surface of plant leaves, the amount of pesticide spraying is increased. When the camera (303) captures few disease spots and holes on the surface of plant leaves, the amount of pesticide spraying is reduced. The camera (303) can capture whether the disease degree of the same plant area is concentrated on the upper side or the lower side, and the controller (5) is activated according to the data captured by the camera (303); S2, the controller (5) controls the start of the forward and reverse motor (305), so that the output shaft of the forward and reverse motor (305) rotates, thereby driving the driving gear (317) to rotate. At this time, the rotation of the rotating shaft (308) inside the rotating hole (307) can play a limiting role. Through the engagement between the outside of the driving gear (317) and the row of teeth (312), the lifting frame (311) can move up and down following the rotation of the driving gear (317). At this time, the limit block (310) plays a limiting role on the lifting frame (311), so that it can ensure that the movement path is vertical. Through the up and down movement of the lifting frame (311), the height of the nozzle (208) is driven to be adjusted. At this time, the displacement sensor (314) monitors the height of the lifting frame (311) in real time; S3, by holding the push rod (104) to push the support plate (101), under the cooperation of the moving wheel (103), the whole device is pushed in the farmland. When spraying pesticides, by starting the water pump (206), the water pump (206) is pressurized to extract the pesticide mixture in the storage box (201), and then pass through the output pipe (207), and finally spray out from the nozzle (208). When filling the pesticide mixture, the pesticide mixture needs to be poured into the storage box (201) from the water injection port (203). When the liquid in the storage box (201) needs to be completely discharged, it can be done by opening the sealing cover of the discharge pipe (202); S4. The servo motor (404) is started by the controller (5) to rotate its output shaft, thereby driving the driving gear (406) to rotate. The servo motor (404) is mounted on the support block (403). Since the outside of the driving gear (406) is meshed with the outside of the driven gear (402), the driven gear (402) can be driven to rotate inside the movable groove (316), thereby driving the rotating block (401) to rotate. The spraying angle of the nozzle (208) can be adjusted according to the current status of the disease. When the degree of the disease is serious, the nozzle (208) can be swung left and right while spraying to increase the spraying area.

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