Unmanned aerial vehicle variable spraying device capable of accurately applying pesticide

Abstract

The utility model discloses an unmanned aerial vehicle variable spraying device capable of accurately applying pesticide, and relates to the technical field of plant protection unmanned aerial vehicles. The unmanned aerial vehicle variable spraying device capable of accurately applying pesticide comprises a pesticide storage box; the stirring assembly is used for stirring the pesticide liquid in the pesticide storage box during pesticide spraying, and the stirring assembly comprises rotating rods rotationally arranged on the inner top wall and the inner bottom wall of the pesticide storage box; and the spraying assembly comprises a transverse pipeline which is fixedly arranged on the lower surface of the pesticide storage box through two mounting columns. According to the spraying device, the stirring assembly and the spraying assembly are arranged, in the actual use process of the spraying device, automatic spraying can be achieved through spraying of the atomizing nozzle, in the spraying process, the quantitative spraying purpose can be achieved, and meanwhile the spraying range can be controlled; and therefore, the working efficiency is effectively improved, and meanwhile, the defect that the spraying range cannot be adjusted according to actual conditions in the prior art is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of plant protection UAVs, in particular to a UAV variable spray device capable of accurately applying pesticides. Background Art

[0002] A plant protection drone is an unmanned aircraft used to perform protection operations on agricultural and forestry plants. An existing patent discloses a quantitative spraying device for a plant protection drone, with patent announcement number CN210653653U. The device includes a drone body, a radar speed sensor for detecting the flight speed of the drone body is fixed on the top of the drone body, and a plurality of cameras for obtaining crop density and plant color information are arranged at intervals at the bottom of the front end of the drone body. A material box and a control box are arranged directly below the drone body, and the outlet of the material box is connected to the sprayer through a hydraulic connection pipe. The utility model can control the spraying speed during spraying according to the flight speed of the drone body, so that the spraying speed of the sprayer in the utility model changes with the change of the flight speed of the drone body, and the sprayer can be controlled more accurately for spraying, thereby improving the utilization rate of pesticides and reducing pollution to the environment, and has promotion and application value.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: during the actual spraying process, the quantitative spray device used in the plant protection UAV only uses one sprayer to achieve spraying, resulting in a limited spray range of the spray device, which reduces work efficiency and is unable to adjust the spray range according to actual conditions.

[0004] Therefore, we proposed a drone variable spray device that can accurately apply pesticides to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a variable spray device for drones that can accurately apply pesticides, solving the problem that the spray range cannot be adjusted according to actual conditions.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a variable spray device of an unmanned aerial vehicle capable of accurately applying pesticides, comprising:

[0007] A medicine storage box, which is mounted on a mounting frame of the plant protection UAV, and a sealing partition is fixedly provided on the inner wall of the medicine storage box;

[0008] A stirring assembly is used to stir the liquid medicine in the medicine storage box when spraying the medicine, and the stirring assembly includes a rotating rod rotatably arranged on the top wall and the bottom wall of the medicine storage box, and two groups of stirring blades symmetrically fixed on the outer surface of the rotating rod, and a driving motor for driving the rotating rod to rotate is arranged on the upper surface of the medicine storage box;

[0009] A spray assembly, the spray assembly includes a transverse pipe fixed to the lower surface of a medicine storage box by two mounting columns, and two groups of atomizing nozzles symmetrically arranged on the lower surface of the transverse pipe, several atomizing nozzles form a group, and the surface of the transverse pipe between two adjacent atomizing nozzles in each group of atomizing nozzles is provided with an electromagnetic valve, the upper surface of the sealing partition is embedded with a liquid outlet pipe extending to the inside of the transverse pipe, the surface of the liquid outlet pipe is provided with an electronic flow meter, and the inner bottom wall of the medicine storage box is provided with a PLC controller, the drive motor, the electronic flow meter and several electromagnetic valves are electrically connected to the PLC controller through wires, the spray assembly also includes an installation box fixed to the inner bottom wall of the medicine storage box, and a push-type air pump fixed to the inner side wall of the installation box for pressurizing the top of the medicine storage box.

[0010] Preferably, a mounting ring is fixedly provided on the outer surface of the medicine storage box, and a plurality of mounting holes are arranged on the surface of the mounting ring in a circular array.

[0011] Preferably, a liquid adding pipe extending to the upper surface of the medicine storage box is embedded in the inner top wall of the medicine storage box, and a sealing plug is provided at the top end of the liquid adding pipe.

[0012] Preferably, the inner side wall of the installation box is rotatably provided with a reciprocating screw extending to the outer surface of the installation box, and the inner wall of the installation box is fixedly provided with a fixing plate.

[0013] Preferably, a driven bevel gear is fixedly provided at the end of the reciprocating screw located on the outer surface of the mounting box, and a driving bevel gear meshing with the driven bevel gear is fixedly provided on the outer surface of the bottom end of the rotating rod.

[0014] Preferably, a sliding plate is slidably provided on the inner wall of the installation box, and a threaded hole threadedly connected to the outer surface of the reciprocating screw is opened on the side of the sliding plate, two symmetrical push rods are fixed on the side of the sliding plate, and the other ends of the two push rods are fixedly connected to the pressing end of the push-type air pump, and a sliding hole for the two push rods to slide is opened on the side of the fixed plate.

[0015] Preferably, the inflation end of the push-type air pump is provided with an L-shaped pressurizing tube, and one end of the L-shaped pressurizing tube away from the push-type air pump passes through the sealing partition and extends to the inner top of the medicine storage box.

[0016] Beneficial Effects

[0017] The utility model provides a variable spray device for drones that can accurately apply pesticides. Compared with the prior art, it has the following beneficial effects:

[0018] The variable spray device of the drone capable of precisely applying pesticides is provided with a stirring component and a spray component so that, during actual use, the spray device can achieve the purpose of automatic spraying through the atomizing nozzle. In the process of spraying, the purpose of quantitative spraying can be achieved, and the purpose of controlling the spray range can be achieved at the same time, thereby effectively improving the work efficiency and solving the defect in the prior art that the spray range cannot be adjusted according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 is a schematic diagram of the structure of the utility model when viewed from above;

[0021] Figure 3 is a schematic diagram of the cross-sectional structure of the utility model;

[0022] FIG. 4 is an enlarged structural schematic diagram of point A in FIG. 3 of the present invention.

[0023] In the figure: 100, medicine storage box; 101, sealing partition; 102, mounting ring; 103, liquid adding pipe; 200, stirring assembly; 201, rotating rod; 202, stirring blade; 203, driving motor; 300, spray assembly; 301, horizontal pipeline; 302, atomizing nozzle; 303, electromagnetic valve; 304, liquid outlet pipe; 305, electronic flow meter; 306, PLC controller; 307, mounting box; 308, push-type air pump; 309, reciprocating screw; 3010, fixed plate; 3011, driven bevel gear; 3012, active bevel gear; 3013, sliding plate; 3014, push rod; 3015, L-shaped pressurized pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Please refer to Figures 1-4. The utility model provides a technical solution: a variable spray device for drones capable of accurately applying pesticides, comprising:

[0026] A medicine storage box 100, which is mounted on a mounting frame of the plant protection UAV, and a sealing partition 101 is fixedly provided on the inner wall of the medicine storage box 100;

[0027] A mounting ring 102 is fixedly provided on the outer surface of the medicine storage box 100 , and a plurality of mounting holes are arranged in a circular array on the surface of the mounting ring 102 , so that the medicine storage box 100 can be easily installed at a suitable position on the plant protection UAV through the mounting ring 102 .

[0028] A liquid adding pipe 103 extending to the upper surface of the medicine storage box 100 is embedded in the inner top wall of the medicine storage box 100 , and a sealing plug is provided at the top end of the liquid adding pipe 103 to facilitate the filling of liquid medicine into the medicine storage box 100 .

[0029] A stirring assembly 200 is used to stir the liquid medicine in the medicine storage box 100 when spraying medicine. The stirring assembly 200 includes a rotating rod 201 rotatably arranged on the top wall and the bottom wall of the medicine storage box 100, and two groups of stirring blades 202 symmetrically fixed on the outer surface of the rotating rod 201. A driving motor 203 for driving the rotating rod 201 to rotate is arranged on the upper surface of the medicine storage box 100;

[0030] The spray assembly 300 includes a transverse pipe 301 fixed to the lower surface of the medicine storage box 100 through two mounting columns, and two groups of atomizing nozzles 302 symmetrically arranged on the lower surface of the transverse pipe 301. A plurality of atomizing nozzles 302 form a group, and a solenoid valve 303 is arranged on the surface of the transverse pipe 301 between two adjacent atomizing nozzles 302 in each group of atomizing nozzles 302. The upper surface of the sealing partition 101 is embedded with a liquid outlet pipe 303 extending to the interior of the transverse pipe 301. 4. An electronic flow meter 305 is disposed on the surface of the liquid outlet pipe 304, and a PLC controller 306 is disposed on the inner bottom wall of the medicine storage box 100. The drive motor 203, the electronic flow meter 305 and a plurality of electromagnetic valves 303 are electrically connected to the PLC controller 306 through wires. The spray assembly 300 also includes a mounting box 307 fixedly mounted on the inner bottom wall of the medicine storage box 100, and a push-type air pump 308 fixedly mounted on the inner side wall of the mounting box 307 for pressurizing the top of the medicine storage box 100.

[0031] A reciprocating screw 309 extending to the outer surface of the installation box 307 is rotatably provided on the inner side wall of the installation box 307 , and a fixing plate 3010 is fixedly provided on the inner wall of the installation box 307 .

[0032] A driven bevel gear 3011 is fixedly provided at the end of the reciprocating screw 309 located on the outer surface of the mounting box 307 , and a driving bevel gear 3012 meshing with the driven bevel gear 3011 is fixedly provided on the outer surface of the bottom end of the rotating rod 201 .

[0033] A sliding plate 3013 is slidably provided on the inner wall of the mounting box 307, and a threaded hole threadedly connected to the outer surface of the reciprocating screw 309 is provided on the side of the sliding plate 3013, and two symmetrical push rods 3014 are fixed on the side of the sliding plate 3013, and the other ends of the two push rods 3014 are fixedly connected to the pressing end of the push-type air pump 308, and a sliding hole for the two push rods 3014 to slide is provided on the side of the fixed plate 3010.

[0034] An L-shaped pressurizing tube 3015 is provided at the inflation end of the push-type air pump 308 , and one end of the L-shaped pressurizing tube 3015 away from the push-type air pump 308 passes through the sealing partition 101 and extends to the inner top of the medicine storage box 100 .

[0035] The variable spray device of the drone capable of precisely applying pesticides is provided with a stirring component 200 and a spray component 300, so that during actual use, the spray device can spray through the atomizing nozzle 302 to achieve the purpose of automatic spraying, and during the spraying process, it can achieve the purpose of quantitative spraying and the purpose of controlling the spray range, thereby effectively improving the work efficiency and solving the defect in the prior art that the spray range cannot be adjusted according to actual conditions.

[0036] During operation, when it is necessary to spray medicine, the driving motor 203 can be started, and the rotation of the driving motor 203 drives the rotating rod 201 to rotate, and the rotation of the rotating rod 201 drives the stirring blade 202 to rotate, so as to fully stir the medicine liquid inside the medicine storage box 100 and avoid the precipitation of the medicine liquid. The rotation of the rotating rod 201 drives the active bevel gear 3012 to rotate, and the rotation of the active bevel gear 3012 drives the driven bevel gear 3011 and the reciprocating screw 309 to rotate. The rotation of the reciprocating screw 309 drives the sliding plate 3013 to move back and forth. The back and forth movement of the sliding plate 3013 continuously presses the push-type air pump 308 through the two push rods 3014, so that the push-type air pump 308 can continuously pressurize the inner top of the medicine storage box 100 through the L-shaped pressurizing pipe 3015, so that the medicine liquid in the medicine storage box 100 enters the transverse pipe 301 through the liquid outlet pipe 304. The liquid in the channel 301 is sprayed out through the atomizing nozzle 302 to achieve the purpose of automatic spraying. In addition, during the spraying process, the value of the electronic flow meter 305 can be pre-set through the plant protection UAV controller to control the amount of spraying. When the amount of liquid through the electronic flow meter 305 reaches the preset value, the electronic flow meter 305 transmits a signal to the PLC controller 306, and the PLC controller 306 automatically controls the drive motor 203 to be closed, thereby achieving the purpose of quantitative spraying. Moreover, before spraying, the spray of the atomizing nozzle 302 can be controlled by controlling the opening and closing of each electromagnetic valve 303 through the plant protection UAV controller according to the size of the spraying range, thereby achieving the purpose of controlling the spray range, thereby effectively improving the work efficiency and solving the defect that the spray range cannot be adjusted according to the actual situation in the prior art.

[0037] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A variable spray device for drones that can accurately apply pesticides, characterized by: include: A medicine storage box (100), the medicine storage box (100) being mounted on a mounting frame of a plant protection drone, and a sealing partition (101) being fixedly provided on an inner wall of the medicine storage box (100); A stirring assembly (200) for stirring the liquid medicine in the medicine storage box (100) when spraying the medicine, the stirring assembly (200) comprising a rotating rod (201) rotatably arranged on the inner top wall and the inner bottom wall of the medicine storage box (100), and two groups of stirring blades (202) symmetrically fixed on the outer surface of the rotating rod (201), and a driving motor (203) for driving the rotating rod (201) to rotate is arranged on the upper surface of the medicine storage box (100); A spray assembly (300), the spray assembly (300) comprising a transverse pipe (301) fixedly mounted on the lower surface of a medicine storage box (100) via two mounting columns, and two groups of atomizing nozzles (302) symmetrically arranged on the lower surface of the transverse pipe (301), a plurality of the atomizing nozzles (302) forming a group, and an electromagnetic valve (303) being arranged on the surface of the transverse pipe (301) between two adjacent atomizing nozzles (302) in each group of atomizing nozzles (302), and a liquid outlet pipe (304) extending into the interior of the transverse pipe (301) being embedded on the upper surface of the sealing partition (101). The surface of the liquid outlet pipe (304) is provided with an electronic flow meter (305), and the inner bottom wall of the medicine storage box (100) is provided with a PLC controller (306); the drive motor (203), the electronic flow meter (305) and the plurality of electromagnetic valves (303) are all electrically connected to the PLC controller (306) via wires; the spray assembly (300) further comprises a mounting box (307) fixedly mounted on the inner bottom wall of the medicine storage box (100), and a push-type air pump (308) fixedly mounted on the inner side wall of the mounting box (307) for pressurizing the top of the medicine storage box (100).

2. The variable spray device for drones capable of accurately applying pesticides according to claim 1, characterized in that: A mounting ring (102) is fixedly provided on the outer surface of the medicine storage box (100), and a plurality of mounting holes are arranged in a circular array on the surface of the mounting ring (102).

3. The variable-volume spray device for precise pesticide application according to claim 1, characterized in that: The inner top wall of the medicine storage box (100) is embedded with a liquid adding pipe (103) extending to the upper surface of the medicine storage box (100), and a sealing plug is provided at the top end of the liquid adding pipe (103).

4. The variable-speed spray device for accurately applying pesticides according to claim 1, characterized in that: The inner side wall of the installation box (307) is rotatably provided with a reciprocating screw (309) extending to the outer surface of the installation box (307), and the inner wall of the installation box (307) is fixedly provided with a fixing plate (3010).

5. The variable-speed spray device for accurately applying pesticides by an unmanned aerial vehicle according to claim 4, characterized in that: A driven bevel gear (3011) is fixedly provided on the end of the reciprocating screw (309) located on the outer surface of the mounting box (307), and a driving bevel gear (3012) meshing with the driven bevel gear (3011) is fixedly provided on the outer surface of the bottom end of the rotating rod (201).

6. The variable-volume spray device for precise pesticide application according to claim 4, characterized in that: A sliding plate (3013) is slidably provided on the inner wall of the installation box (307), and a threaded hole is provided on the side of the sliding plate (3013) and is threadedly connected to the outer surface of the reciprocating screw (309). Two symmetrical push rods (3014) are fixedly provided on the side of the sliding plate (3013), and the other ends of the two push rods (3014) are fixedly connected to the pressing end of the push-type air pump (308), and a sliding hole is provided on the side of the fixed plate (3010) for the two push rods (3014) to slide.

7. The variable-volume spray device for precise pesticide application according to claim 1, characterized in that: The inflation end of the push-type inflation pump (308) is provided with an L-shaped pressure tube (3015), and one end of the L-shaped pressure tube (3015) away from the push-type inflation pump (308) passes through the sealing partition (101) and extends to the inner top of the medicine storage box (100).

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