Pesticide spraying plant protection unmanned aerial vehicle

Abstract

The invention relates to the technical field of mobile plant protection unmanned aerial vehicles, and provides a pesticide spraying plant protection unmanned aerial vehicle which comprises an unmanned aerial vehicle body, a liquid storage barrel is mounted in the unmanned aerial vehicle body, a pumping mechanism is mounted on the right side of the liquid storage barrel, and a spraying rod is fixedly connected to the other side of the pumping mechanism; the top of the spraying rod is fixedly connected to the bottom of the liquid storage barrel, supporting legs are fixedly connected to the front side and the rear side of the bottom of the unmanned aerial vehicle body, windproof mechanisms are arranged on the front side and the rear side of the exterior of the liquid storage barrel, and a stirring mechanism is arranged in the liquid storage barrel. The influence of external wind on pesticide spraying is reduced through the arranged wind blocking assembly, external wind power is converted into power of the air supply assembly through the arranged driving assembly, the air supply assembly is driven to convey airflow to the side with wind, a layer of relatively stable air barrier is formed, the pesticide spraying uniformity is improved, and the pesticide spraying efficiency is improved. And meanwhile, the potential problem that the health of workers is threatened due to the fact that drugs are possibly brought to the unmanned aerial vehicle body is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile plant protection drones, and in particular to a pesticide spraying plant protection drone. Background Art

[0002] Plant protection drones (plant protection drones) refer to drone equipment specifically used for agricultural plant protection (plant protection) operations. This type of drone is mainly used for pest control, pesticide spraying, crop nutrient spraying and other tasks in agriculture. It has the advantages of high efficiency, precision and environmental protection, and plays an increasingly important role in modern agriculture.

[0003] In the prior art, when a drone is performing a spraying operation, it drives the nozzle to move back and forth to spray pesticides on plants. However, when the drone is performing a spraying operation, there may be sudden abnormal weather and strong winds, which may cause the sprayed medicine to deviate from the predetermined trajectory, resulting in uneven spraying of the medicine. Some plants may receive excessive pesticides, while other parts may not be adequately protected, thereby affecting the overall prevention and control effect. At the same time, strong winds may bring the sprayed pesticides to the drone body, causing the staff to directly contact the residual pesticides on the drone when collecting the drone for maintenance or storage, which may cause potential damage to the staff's health through skin absorption or accidental ingestion. Summary of the invention

[0004] The present invention provides a pesticide spraying plant protection drone to solve the problem that when the existing drone is performing a pesticide spraying operation, there is a sudden abnormal weather and strong wind, which causes the sprayed pesticide to deviate from the predetermined trajectory, resulting in uneven pesticide spraying.

[0005] The technical solution of the present invention is as follows: a drug spraying plant protection drone, comprising a drone body, a liquid storage barrel installed inside the drone body, a pumping mechanism installed on the right side of the liquid storage barrel, a spraying rod fixedly connected to the other side of the pumping mechanism, the top of the spraying rod fixedly connected to the bottom of the liquid storage barrel, the front and rear sides of the bottom of the drone body are fixedly connected to support legs, the front and rear sides of the outside of the liquid storage barrel are provided with windproof mechanisms, and a stirring mechanism is provided inside the liquid storage barrel; The windproof mechanism includes a driving component, an air supply component and a windshield component. The driving component is arranged on the outside of the drone body, the air supply component is arranged on the outer wall of the liquid storage barrel, and the windshield component is arranged on the outside of the spraying rod.

[0006] Optionally, the driving assembly includes an L-shaped frame, the inner side of the L-shaped frame is fixedly connected to the outer side of the drone body, the inside of the L-shaped frame is rotatably connected to a driving shaft, one end of the driving shaft is fixedly connected to a fan, the other end of the driving shaft is fixedly connected to a turntable, the turntable is fixedly connected to an eccentric shaft on one edge close to the liquid storage barrel, and a hollow frame is slidably connected to the outer side of the eccentric shaft.

[0007] Optionally, the air supply assembly includes a sleeve, one side of the sleeve is fixedly connected to the outside of the liquid storage barrel, a sliding rod is slidably connected to the inside of the sleeve, a piston is fixedly connected to the bottom of the sliding rod, a suction pipe is fixedly connected to the side of the sleeve away from the liquid storage barrel, an air supply pipe is fixedly connected to the bottom of the sleeve, an injection pipe is fixedly connected to the bottom of the air supply pipe, and one side of the injection pipe is fixedly connected to the outer wall of the liquid storage barrel.

[0008] Optionally, the wind shield assembly includes a wind shield, and the top of the wind shield is installed on the bottom of the liquid storage barrel.

[0009] Optionally, the hollow frame is slidably connected to one side of the turntable away from the liquid storage barrel.

[0010] Optionally, one-way valves are provided on the outsides of the air extraction pipe and the air delivery pipe.

[0011] Optionally, the stirring mechanism includes a bracket, the bottom of the bracket is fixedly connected to the top of the liquid storage barrel, the top of the bracket is fixedly connected to a motor, the output end of the motor is fixedly connected to a worm, the bottom of the worm is fixedly connected to a connecting shaft, the outer side of the connecting shaft is slidably connected to a stirring shaft, the top of the stirring shaft is fixedly connected to a limit block, the outer side of the stirring shaft and located at the bottom of the limit block is rotatably connected to a ring, one side of the ring is fixedly connected to a transverse connecting column, the top of the transverse connecting column is fixedly connected to a rack, the rear side of the worm is meshingly connected to a worm wheel, the inside of the worm wheel is fixedly connected to a rotating shaft, the right end of the rotating shaft is fixedly connected to a gear, and the gear and the rack are meshingly connected.

[0012] Optionally, both ends of the rotating shaft are rotatably connected to the bracket, the top of the worm is rotatably connected to the bottom of the bracket, and the outer side of the connecting shaft is rotatably connected to the inside of the liquid storage barrel.

[0013] Optionally, the bottom end of the rack passes through the liquid storage barrel and is slidably connected to the liquid storage barrel, and the gear is half toothed and half non-toothed.

[0014] Optionally, a feed port is fixedly connected to the top edge of the liquid storage barrel.

[0015] The working principle and beneficial effects of the present invention are: 1. In the present invention, the wind shield component is provided to reduce the influence of external wind on the spraying of pesticides, and the driving component is provided to convert the external wind force into the power of the air supply component, which drives the air supply component to transport the airflow to the windy side, forming a relatively stable air barrier, improving the uniformity of drug spraying, and solving the potential problem that the drug may be brought onto the drone body, thereby threatening the health of the staff.

[0016] 2. In the present invention, the stirring mechanism is provided to stir the pesticide inside the liquid storage barrel up and down, thereby preventing the pesticide from being deposited at the bottom of the liquid storage barrel for a long time, avoiding the problem of spray rod clogging caused by deposition, reducing the failure rate of the drone during operation, and extending the service life of the nozzle, further improving the working efficiency of the drone. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a pesticide spraying plant protection drone; Figure 2 This is the front view of the external structure of the pumping mechanism; Figure 3 This is a bottom view of the internal structure of the stirring mechanism; Figure 4 It is a side view of the external structure of the drive component and the internal structure of the air supply component; Figure 5 for Figure 1 The enlarged schematic diagram at A in the middle; Figure 6 This is a cross-sectional view of the internal structure of the stirring shaft; Figure 7 for Figure 2 The enlarged schematic diagram at A in the middle; Figure 8 for Figure 3 The enlarged schematic diagram at C in the middle; Fig. 9 for Figure 3 Enlarged schematic diagram at point D in the middle.

[0019] In the figure: 1. drone body; 2. liquid storage barrel; 3. pumping mechanism; 4. supporting legs; 5. driving assembly; 51. L-shaped frame; 52. driving shaft; 53. fan; 54. turntable; 55. eccentric shaft; 56. hollow frame; 6. air supply assembly; 61. sleeve; 62. slide rod; 63. piston; 64. exhaust pipe; 65. air supply pipe; 66. one-way valve; 67. jet pipe; 7. stirring mechanism; 71. bracket; 72. motor; 73. worm; 74. connecting shaft; 75. stirring shaft; 76. limit block; 77. collar; 78. transverse connecting column; 79. rack; 710. worm gear; 711. rotating shaft; 712. gear; 8. spray rod; 9. wind shield assembly; 91. wind shield; 10. feed port. DETAILED DESCRIPTION

[0020] The following will be combined with 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.

[0021] Example 1 like Figures 1 to 9 As shown, this embodiment proposes a drone body 1, which is a prior art. A liquid storage barrel 2 is installed inside the drone body 1, and the liquid storage barrel 2 is used to hold medicine. A pumping mechanism 3 is installed on the right side of the liquid storage barrel 2. The pumping mechanism 3 transports the mixed medicine to the spraying rod 8. The other side of the pumping mechanism 3 is fixedly connected to the spraying rod 8, and the spraying rod 8 sprays the medicine on the plants. The top of the spraying rod 8 is fixedly connected to the bottom of the liquid storage barrel 2. Support legs 4 are fixedly connected to the front and rear sides of the bottom of the drone body 1. The support legs 4 play a supporting role for the drone body 1. Windproof mechanisms are arranged on the front and rear sides of the exterior of the liquid storage barrel 2. The windproof mechanism is used to reduce the impact of strong wind on the medicine at the spraying location. A stirring mechanism 7 is arranged inside the liquid storage barrel 2. The stirring mechanism 7 is used to prevent the precipitation of the medicine. The windproof mechanism includes a driving assembly 5, an air supply assembly 6 and a windshield assembly 9. The driving assembly 5 is arranged on the outside of the drone body 1, the air supply assembly 6 is arranged on the outer wall of the liquid storage barrel 2, and the windshield assembly 9 is arranged on the outside of the spraying rod 8.

[0022] like Figures 1 to 4As shown, the driving assembly 5 includes an L-shaped frame 51, the inner side of the L-shaped frame 51 is fixedly connected to the outer side of the drone body 1, the L-shaped frame 51 provides support for the driving assembly 5, and the L-shaped frame 51 is rotatably connected to a driving shaft 52 inside, and the driving shaft 52 plays a role in transmitting motion. A fan 53 is fixedly connected to one end of the driving shaft 52, and the fan 53 is used to convert external wind force into power for rotating the driving shaft 52. A turntable 54 is fixedly connected to the other end of the driving shaft 52, and the turntable 54 plays a role in driving the eccentric shaft 55 to move. An eccentric shaft 55 is fixedly connected to the edge of one side of the turntable 54 close to the liquid storage barrel 2, and the eccentric shaft 55 plays a role in driving the hollow frame 56 to move. A hollow frame 56 is slidably connected to the outer side of the eccentric shaft 55, and the hollow frame 56 plays a role in converting the circular motion of the eccentric shaft 55 into the linear motion of the hollow frame 56.

[0023] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the air supply assembly 6 includes a sleeve 61, one side of which is fixedly connected to the outside of the liquid storage barrel 2, and the sleeve 61 is used to store the drawn-in gas. A sliding rod 62 is slidably connected inside the sleeve 61, and the sliding rod 62 is connected to the hollow frame 56, driving the piston 63 to reciprocate. A piston 63 is fixedly connected to the bottom of the sliding rod 62, and the piston 63 is used to drive the air extraction pipe 64 to extract air or the air supply pipe 65 to deliver air. The side of the sleeve 61 away from the liquid storage barrel 2 is fixedly connected to the air extraction pipe 64, and the air extraction pipe 64 is used to extract external air. The bottom of the sleeve 61 is fixedly connected to the air supply pipe 65, and the air supply pipe 65 is used to transport the gas inside the sleeve 61 to the injection pipe 68. The bottom of the air supply pipe 65 is fixedly connected to the injection pipe 67, and the gas ejected from the injection pipe 67 and the wind force blown from the outside offset each other and buffer each other, and one side of the injection pipe 67 is fixedly connected to the outer wall of the liquid storage barrel 2.

[0024] like Figure 1 to Figure 3 As shown, the wind shield assembly 9 includes a wind shield 91, the top of which is installed at the bottom of the liquid storage barrel 2, and the wind shield 91 is used to reduce the impact of external wind on the spraying of pesticides.

[0025] like Figure 1 , Figure 4 and Figure 5 As shown, the hollow frame 56 is slidably connected to the side of the turntable 54 away from the liquid storage barrel 2, so that the hollow frame 56 can slide stably, and a one-way valve 66 is provided on the outside of the air extraction pipe 64 and the air supply pipe 65. The one-way valve 66 allows the gas in the air extraction pipe 64 to only enter but not exit, and the gas in the air supply pipe 65 to only exit but not enter. A feed port 10 is fixedly connected to the top edge of the liquid storage barrel 2, and the feed port 10 is convenient for the staff to add pesticides.

[0026] Example 2 like Figure 1 , Figure 2 , Figure 3, Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, based on the same concept as the above-mentioned embodiment 1, the stirring mechanism 7 includes a bracket 71, the bottom of the bracket 71 is fixedly connected to the top of the liquid storage tank 2, the bracket 71 is used to install components such as a motor 72, the top of the bracket 71 is fixedly connected to a motor 72, the motor 72 is used to drive a worm 73 to rotate, the output end of the motor 72 is fixedly connected to a worm 73, the worm 73 is used to drive a connecting shaft 74 and a worm wheel 710, the bottom of the worm 73 is fixedly connected to a connecting shaft 74, the connecting shaft 74 is used to drive a stirring shaft 75 to rotate, the outer side of the connecting shaft 74 is slidably connected to a stirring shaft 75, the stirring shaft 75 is used to stir the medicine in the liquid storage tank 2, the top of the stirring shaft 75 is fixedly connected to a limiting block 76, the limiting block 76 is used to limit the position of the collar 77 to prevent the stirring shaft 75 from detaching from the collar 77, and the outer side of the stirring shaft 75 and the position A collar 77 is rotatably connected to the bottom of the limit block 76, and the collar 77 is used to connect the transverse connecting column 78 and the stirring shaft 75. A transverse connecting column 78 is fixedly connected to one side of the collar 77, and the transverse connecting column is used to connect the rack 79. The top of the transverse connecting column 78 is fixedly connected to the rack 79, and the rack 79 is used to transmit the movement of the gear 712 to the stirring shaft 75 through the transverse connecting column 78 and the collar 77. A worm wheel 710 is meshingly connected to the rear side of the worm 73, and the worm wheel 710 is used to transmit the movement of the worm 73. A rotating shaft 711 is fixedly connected inside the worm wheel 710, and the rotating shaft 711 is used to transmit the movement of the worm wheel 710 to the gear 712. A gear 712 is fixedly connected to the right end of the rotating shaft 711, and the gear 712 is used to drive the rack 79 to move, and the gear 712 and the rack 79 are meshingly connected.

[0027] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, both ends of the rotating shaft 711 are rotatably connected to the bracket 71, the top of the worm 73 is rotatably connected to the bottom of the bracket 71, so that the worm 73 can rotate stably, the outer side of the connecting shaft 74 is rotatably connected to the inside of the liquid storage barrel 2, so that the connecting shaft 74 can rotate stably, the bottom end of the rack 79 passes through the liquid storage barrel 2 and is slidably connected to the liquid storage barrel 2, which serves as a limit for the rack 79, and the gear 712 is half toothed and half non-toothed, which can intermittently drive the rack 79 to move upward.

[0028] The working principle of the technical solution provided by the present invention is as follows: when in use, the liquid storage barrel 2 is filled with the pesticide to be sprayed, and the pesticide in the liquid storage barrel 2 is transported to the spray rod 8 for spraying through the pumping mechanism 3. The windproof mechanism can prevent the external wind from blowing the pesticide away from the preset spraying trajectory.

[0029] When the driving assembly 5 is in use, when the external wind blows towards the drone, the wind force is converted into power, driving the fan 53 to rotate (the greater the wind force, the faster the fan 53 rotates). When the fan 53 rotates, it drives the driving shaft 52 to rotate inside the L-shaped frame 51, and the driving shaft 52 drives the turntable 54 to rotate. When the turntable 54 rotates, it drives the eccentric shaft 55 to rotate. The rotation of the eccentric shaft 55 drives the hollow frame 56, and the hollow frame 56 drives the air supply assembly 6.

[0030] When the air supply component 6 is in use, the hollow frame 56 inside the driving component 5 drives the slide rod 62 to move up and down inside the sleeve 61 to make reciprocating motion. The slide rod 62 pushes the piston 63 to move up and down inside the sleeve 61 to make reciprocating motion. When the piston 63 makes reciprocating motion up and down, air is input into the sleeve 61 through the air supply pipe 65, and the air is sprayed out through the jet pipe 67. The gas sprayed from the jet pipe 67 and the wind force blown from the outside offset each other and buffer each other, which can help the windproof component to better prevent wind. At the same time, the water pressure of the spray is higher than the pressure of the air sprayed from the air pipe, which will not interfere with the spraying.

[0031] The wind shield 91 of the wind shield assembly can reduce the influence of external wind on the spraying of pesticides.

[0032] When the stirring mechanism 7 is in use, the motor 72 is started, and the motor 72 drives the worm 73 to rotate. When the worm 73 rotates, it drives the connecting shaft 74 to rotate. The connecting shaft 74 drives the stirring shaft 75 to rotate. The worm 73 and the turbine are meshed. The worm 73 drives the turbine to rotate while rotating. When the turbine rotates, it drives the rotating shaft 711 to rotate. When the rotating shaft 711 rotates, it drives the gear 712 to rotate. The gear 712 and the rack 79 are meshed, and the gear 712 drives the rack 79 to move. Because the gear 712 is half toothed and half toothless, when the gear 712 meshes with the rack 79, it drives the rack 79 to move upward intermittently. The rack 79 drives the connecting column, and the connecting column drives the collar 77. The collar 77 pushes the limit block 762 upward. The limit block 76 drives the stirring shaft 75 to move upward around the outer periphery of the connecting shaft 74, so as to stir the pesticide inside the liquid storage barrel 2 up and down to prevent the pesticide from forming precipitation and affecting the normal spraying and use effect of the pesticide.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. 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 pesticide spraying plant protection drone, characterized in that: The unmanned aerial vehicle (1) comprises an unmanned aerial vehicle (1), wherein a liquid storage barrel (2) is installed inside the unmanned aerial vehicle (1), a pumping mechanism (3) is installed on the right side of the liquid storage barrel (2), a spraying rod (8) is fixedly connected to the other side of the pumping mechanism (3), the top of the spraying rod (8) is fixedly connected to the bottom of the liquid storage barrel (2), the front and rear sides of the bottom of the unmanned aerial vehicle (1) are fixedly connected to support legs (4), the front and rear sides of the outside of the liquid storage barrel (2) are provided with windproof mechanisms, and the inside of the liquid storage barrel (2) is provided with a stirring mechanism (7); The windproof mechanism comprises a drive assembly (5), an air supply assembly (6) and a windshield assembly (9); the drive assembly (5) is arranged on the outside of the drone body (1); the air supply assembly (6) is arranged on the outer wall of the liquid storage barrel (2); and the windshield assembly (9) is arranged on the outside of the spraying rod (8).

2. A pesticide spraying plant protection drone according to claim 1, characterized in that: The driving assembly (5) comprises an L-shaped frame (51), the inner side of the L-shaped frame (51) being fixedly connected to the outer side of the unmanned aerial vehicle body (1), the inner side of the L-shaped frame (51) being rotatably connected to a driving shaft (52), one end of the driving shaft (52) being fixedly connected to a fan (53), the other end of the driving shaft (52) being fixedly connected to a rotating disk (54), the edge of one side of the rotating disk (54) close to the liquid storage barrel (2) being fixedly connected to an eccentric shaft (55), and the outer side of the eccentric shaft (55) being slidably connected to a hollow frame (56).

3. A pesticide spraying plant protection drone according to claim 1, characterized in that: The air supply assembly (6) comprises a sleeve (61), one side of the sleeve (61) is fixedly connected to the outside of the liquid storage barrel (2), a sliding rod (62) is slidably connected inside the sleeve (61), a piston (63) is fixedly connected to the bottom of the sliding rod (62), an air extraction pipe (64) is fixedly connected to the side of the sleeve (61) away from the liquid storage barrel (2), an air supply pipe (65) is fixedly connected to the bottom of the sleeve (61), an air injection pipe (67) is fixedly connected to the bottom of the air supply pipe (65), and one side of the air injection pipe (67) is fixedly connected to the outer wall of the liquid storage barrel (2).

4. A pesticide spraying plant protection drone according to claim 1, characterized in that: The wind shield assembly (9) comprises a wind shield (91), the top of the wind shield (91) being mounted on the bottom of the liquid storage barrel (2).

5. The pesticide spraying plant protection drone according to claim 1, characterized in that: The side of the hollow frame (56) away from the liquid storage barrel (2) is slidably connected to one side of the rotating disk (54).

6. The pesticide spraying plant protection drone according to claim 1, characterized in that: One-way valves (66) are provided on the outsides of the air extraction pipe (64) and the air delivery pipe (65).

7. The pesticide spraying plant protection drone according to claim 1, characterized in that: The stirring mechanism (7) comprises a bracket (71), the bottom of the bracket (71) is fixedly connected to the top of the liquid storage barrel (2), the top of the bracket (71) is fixedly connected to a motor (72), the output end of the motor (72) is fixedly connected to a worm (73), the bottom of the worm (73) is fixedly connected to a connecting shaft (74), the outer side of the connecting shaft (74) is slidably connected to a stirring shaft (75), the top of the stirring shaft (75) is fixedly connected to a limit block (76), the outer side of the stirring shaft (75) A collar (77) is rotatably connected to the bottom of the limit block (76); a transverse connecting column (78) is fixedly connected to one side of the collar (77); a rack (79) is fixedly connected to the top of the transverse connecting column (78); a worm wheel (710) is meshingly connected to the rear side of the worm (73); a rotating shaft (711) is fixedly connected inside the worm wheel (710); a gear (712) is fixedly connected to the right end of the rotating shaft (711); and the gear (712) and the rack (79) are meshingly connected.

8. The pesticide spraying plant protection drone according to claim 1, characterized in that: Both ends of the rotating shaft (711) are rotatably connected to the bracket (71), the top of the worm gear (73) is rotatably connected to the bottom of the bracket (71), and the outer side of the connecting shaft (74) is rotatably connected to the inside of the liquid storage barrel (2).

9. The pesticide spraying plant protection drone according to claim 1, characterized in that: The bottom end of the rack (79) passes through the liquid storage barrel (2) and is slidably connected to the liquid storage barrel (2); the gear (712) is half toothed and half non-toothed.

10. The pesticide spraying plant protection drone according to claim 1, characterized in that: A feed port (10) is fixedly connected to the top edge of the liquid storage barrel (2).

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