Multi-rotor plant protection unmanned aerial vehicle

Abstract

The invention provides a multi-rotor plant protection unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles. The multi-rotor plant protection unmanned aerial vehicle comprises an unmanned aerial vehicle body, spraying mechanisms are fixed to the two sides of the lower end of the unmanned aerial vehicle body through bolts, a fixing mechanism is fixedly arranged in the middle of the unmanned aerial vehicle body, a storage mechanism is fixedly arranged in the fixing mechanism, and electric telescopic rods are fixedly arranged on the two sides of the unmanned aerial vehicle body; the two spraying mechanisms comprise connecting plates, conveying boxes are hinged to the front ends of the bottom faces of the two connecting plates, a plurality of spraying heads are fixedly arranged at the lower ends of the two conveying boxes, the storage mechanism comprises a water tank, and a water pump is fixedly arranged in the water tank. And through cooperative use of a threaded rod and a clamping plate, mounting and dismounting operation of the storage mechanism can be rapidly completed, the equipment can be kept in a good operation state at any time, the usability of the equipment is greatly improved, and powerful guarantee is provided for efficient development of agricultural plant protection operation.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a multi-rotor plant protection UAV. Background Art

[0002] A multi-rotor plant protection drone is an aircraft used in the field of agricultural plant protection. It is usually powered by multiple rotors and can take off and land vertically, and hover. It carries pesticide spraying or seed sowing and other equipment, and can fly above farmland according to preset routes. It can efficiently complete large-scale crop protection operations, such as spraying pesticides, fertilizing, and sowing, thereby improving agricultural production efficiency and reducing labor costs.

[0003] The existing patent (publication number: CN108423165B) discloses that "the present invention provides a plant protection UAV, including a mounting plate mechanism, a landing gear mechanism, a spraying mechanism, a folding locking mechanism, an arm mechanism, a motor seat mechanism and a power mechanism. The mounting plate mechanism includes upper and lower center plates arranged relatively, a battery support plate is fixed on the surface of the upper center plate, and a flight control panel is fixed on the surface of the lower center plate. The landing gear mechanism includes a landing gear top plate fixedly connected to the bottom surface of the lower center plate, a servo seat is fixed at the bottom of the landing gear top plate, a servo rocker is connected to the servo seat, and the servo rocker is connected to a rotating sleeve through a rocker arm, and a T-shaped tripod is sleeved on the rotating sleeve. The spraying mechanism includes a medicine barrel fixedly connected to the bottom of the lower center plate, a conduit connected to the medicine barrel, and an electric water pump for transporting medicine in the medicine barrel to the conduit. The folding locking mechanism includes a locking mechanism fixed to the surface of the upper center plate for locking the arm mechanism, and the motor seat mechanism is fixedly connected to the arm through the seat sleeve. The present application has a simple structure, convenient operation and low cost.

[0004] The existing technology has the following problems: the spraying mechanism angles of existing multi-rotor plant protection drones are mostly fixed and cannot be flexibly adjusted, making it difficult to adapt to crops at different heights and complex terrains, resulting in uneven pesticide spraying and inability to achieve precise operations. This wastes resources and may also affect crop growth. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a multi-rotor plant protection UAV, which is easy to disassemble and provides great convenience for equipment maintenance. It can also accurately adjust the angle of the spraying mechanism, so that the UAV can adapt to the spraying needs of crops at different heights and terrains and achieve precise spraying.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-rotor plant protection drone, comprising a drone body, spraying mechanisms are bolted to both sides of the lower end of the drone body, a fixing mechanism is fixedly arranged in the middle of the drone body, a storage mechanism is fixedly arranged inside the fixing mechanism, and electric telescopic rods are fixedly arranged on both sides of the drone body; The two spraying mechanisms each include a connecting plate, the front ends of the bottom surfaces of the two connecting plates are hingedly provided with a conveying box, the lower ends of the two conveying boxes are fixedly provided with a plurality of nozzles, the storage mechanism includes a water tank, a water pump is fixedly provided inside the water tank, a connecting pipe is fixedly provided at the upper end of the water tank, the fixing mechanism includes a fixing frame, threaded rods are threadedly provided on both sides of the fixing frame, limiting screws are threadedly provided on both sides of the upper end of the fixing frame, and clamping plates are slidably provided on both sides of the fixing frame.

[0007] Preferably, the drone body includes a body and a bottom plate, connecting rods are fixedly provided at the four corners of the lower end of the body, and fixing rods are fixedly provided at the four corners of the body.

[0008] Preferably, two supporting feet are fixedly provided at the lower ends of the four fixing rods, and the lower ends of the four connecting rods are fixedly connected to the bottom plate.

[0009] Preferably, motors are fixedly provided at both ends of the four fixing rods on a side away from the drone, and blades are fixedly provided at output ends of the multiple motors.

[0010] Preferably, the upper ends of the two conveying boxes are hingedly connected to the output end of the electric telescopic rod, and the two conveying boxes are fixedly connected through a pipeline and a connecting pipe.

[0011] Preferably, a water inlet is fixedly provided at the upper end of the water tank.

[0012] Preferably, a water pipe is fixedly provided at the output end of the water pump, and the side of the water pipe away from the output end of the water pump is fixedly connected to the connecting pipe.

[0013] Preferably, an adjustment block is fixedly provided on one side of the two threaded rods away from the drone, and the two threaded rods are rotatably connected to the clamping plate.

[0014] Working principle: Before using the multi-rotor plant protection drone, first place the water tank in the fixed frame, and by turning the adjustment block, the threaded rod drives the clamping plate to move, and the water tank is firmly clamped in the fixed frame. At the same time, the limit screw can be adjusted as needed to further fix the water tank, and then an appropriate amount of pesticides, fertilizers or other liquids for spraying are injected into the water tank from the water inlet. After starting the drone, the user can control the extension and retraction of the electric telescopic rod through the control system according to actual needs. When the electric telescopic rod is extended or shortened, its output end drives the delivery box to rotate around the hinge point of the connecting plate, thereby changing the angle of the nozzle to adapt to the spraying needs of crops at different heights and terrains. When the drone arrives at the designated operating area, the water pump is started, and the water pump is powered on to start working, the liquid in the water tank is pumped out and pressurized, and transported to the connecting pipe through the water pipe. The connecting pipe then transports the liquid to the delivery box through the pipeline, and finally sprays it evenly on the crops from the nozzle.

[0015] The present invention provides a multi-rotor plant protection drone. It has the following beneficial effects: 1. The present invention provides a multi-rotor plant protection UAV. Compared with the existing plant protection UAV, the plant protection UAV can quickly complete the installation and disassembly operations of the storage mechanism by using a threaded rod and a clamping plate in a fixing mechanism. This feature not only makes it easier to add liquid and replace the water tank, but also provides great convenience for equipment maintenance. The staff can efficiently inspect and maintain the storage mechanism, and the spraying mechanism is fixed by bolt connection. This connection method is simple to operate. When the equipment fails or parts are damaged, it can be quickly disassembled, which is convenient for repair and replacement of related parts. This effectively reduces the downtime caused by equipment failure, allows the equipment to maintain a good operating state at any time, greatly improves the availability of the equipment, and provides a strong guarantee for the efficient development of agricultural plant protection operations.

[0016] 2. The present invention provides a multi-rotor plant protection UAV. Compared with the existing plant protection UAV, in the spraying mechanism of the plant protection UAV, the conveying box and the connecting plate are connected in a hinged manner, and the upper end of the conveying box is hinged to the output end of the electric telescopic rod. This unique connection structure enables the angle of the spraying mechanism to be accurately adjusted by controlling the extension and retraction of the electric telescopic rod, so that the UAV can adapt to the spraying needs of crops at different heights and terrains, achieve precise spraying, and improve operating efficiency and pesticide use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a first axial side schematic diagram of the present invention; Figure 2 It is a second axial side schematic diagram of the present invention; Figure 3 It is a schematic diagram of the storage mechanism structure of the present invention; Figure 4 It is an enlarged schematic diagram of point A of the present invention.

[0018] Among them, 1. UAV body; 2. spraying mechanism; 3. storage mechanism; 4. fixing mechanism; 5. electric telescopic rod; 101. supporting foot; 102. connecting rod; 103. bottom plate; 104. body; 105. fixing rod; 106. blade; 107. motor; 201. conveying box; 202. nozzle; 203. connecting plate; 301. water tank; 302. water pump; 303. water pipe; 304. water inlet; 305. connecting pipe; 401. adjusting block; 402. limit screw; 403. threaded rod; 404. clamping plate; 405. fixing frame. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-4 As shown, an embodiment of the present invention provides a multi-rotor plant protection UAV, including a UAV body 1, spraying mechanisms 2 are bolted to both sides of the lower end of the UAV body 1, a fixing mechanism 4 is fixedly arranged in the middle position of the UAV body 1, a storage mechanism 3 is fixedly arranged inside the fixing mechanism 4, and electric telescopic rods 5 are fixedly arranged on both sides of the UAV body 1.

[0021] Specifically, the drone body 1 can be used to provide a flight platform and carry various components, the spraying mechanism 2 realizes multi-angle spraying of pesticides or other liquids, the storage mechanism 3 can be used to store and pump liquids used for plant protection operations, the fixing mechanism 4 can be used to fix the storage mechanism 3 to prevent it from shaking, and the electric telescopic rod 5 can be used to adjust the angle of the spraying mechanism 2 to adapt to different spraying needs and scenarios.

[0022] like Figure 1 As shown, the drone body 1 includes a body 104 and a base plate 103, connecting rods 102 are fixedly provided at the four corners of the lower end of the body 104, fixing rods 105 are fixedly provided at the four corners of the body 104, two supporting feet 101 are fixedly provided at the lower ends of the four fixing rods 105, the lower ends of the four fixing rods 102 are fixedly connected to the base plate 103, motors 107 are fixedly provided at both ends of the four fixing rods 105 away from the drone, and blades 106 are fixedly provided at the output ends of the multiple motors 107, and the two spraying mechanisms 2 include connecting plates 203, and the front ends of the bottoms of the two connecting plates 203 are hingedly provided with conveying boxes 201, and the lower ends of the two conveying boxes 201 are fixedly provided with multiple nozzles 202, and the upper ends of the two conveying boxes 201 are hingedly connected to the output ends of the electric telescopic rod 5, and the two conveying boxes 201 are fixedly connected through pipelines and connecting pipes 305.

[0023] Specifically, in the drone body 1, the support foot 101 plays a supporting role when the drone is parked to prevent the body 104 from directly contacting the ground and causing damage. The connecting rod 102 can be used to firmly connect the body 104 and the bottom plate 103 to enhance the stability of the overall structure. The bottom plate 103 provides an installation position for the fixing mechanism 4. The body 104 can be used to support and protect the internal system to maintain flight stability and performance. The fixing rod 105 can fix the support foot 101 and the motor 107. The motor 107 drives the blades 106 to rotate at high speed to provide the drone with power to rise and fly. In the two spraying mechanisms 2, the connecting plate 203 plays a role in To connect and support the delivery box 201, the front ends of the bottom of the two connecting plates 203 are hingedly provided with the delivery box 201, so that the delivery box 201 can be flexibly rotated to adapt to different spraying requirements. The nozzle 202 is used to evenly spray the pesticide or fertilizer in the delivery box 201. The upper ends of the two delivery boxes 201 are hingedly connected to the output end of the electric telescopic rod 5. The extension and retraction of the electric telescopic rod 5 can drive the delivery box 201 to change its angle, thereby adjusting the spraying angle of the nozzle 202. The two delivery boxes 201 are fixedly connected by a pipeline and a connecting pipe 305 to ensure that the pesticide or fertilizer can be smoothly transported from the connecting pipe 305 to the delivery box 201.

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, the storage mechanism 3 includes a water tank 301, a water pump 302 is fixedly arranged inside the water tank 301, a connecting pipe 305 is fixedly arranged on the upper end of the water tank 301, a water inlet 304 is fixedly arranged on the upper end of the water tank 301, a water pipe 303 is fixedly arranged on the output end of the water pump 302, and the water pipe 303 is fixedly connected to the connecting pipe 305 on the side away from the output end of the water pump 302. The fixing mechanism 4 includes a fixing frame 405, threaded rods 403 are threaded on both sides of the fixing frame 405, and limiting screws 402 are threaded on both sides of the upper end of the fixing frame 405. Clamping plates 404 are slidably arranged on both sides of the fixing frame 405, and adjusting blocks 401 are fixedly arranged on the side of the two threaded rods 403 away from the drone, and the two threaded rods 403 are rotatably connected to the clamping plates 404.

[0025] Specifically, in the storage mechanism 3, the water tank 301 is a container for storing pesticides or fertilizers for spraying, the water pump 302 can extract the pesticides or fertilizers in the water tank 301 and convey them under pressure, the connecting pipe 305 is used to connect the water pump 302 and the conveying box 201 to realize the conveying of the pesticides or fertilizers, and the required pesticides or fertilizers can be conveniently injected into the water tank 301 through the water inlet 304. The water pipe 303 is used to convey the pesticides or fertilizers extracted by the water pump 302 to the connecting pipe 305. In the fixing mechanism 4, The fixed frame 405 provides a framework for installing and fixing the storage mechanism 3. Rotating the threaded rod 403 can adjust its position in the fixed frame 405. The limit screw 402 can further limit and fix the storage mechanism 3 to prevent it from shaking during flight. The adjustment block 401 makes it convenient for the operator to rotate the threaded rod 403. When the adjustment block 401 is rotated, the rotation of the threaded rod 403 can drive the clamping plate 404 to slide horizontally in the fixed frame 405, thereby clamping or loosening the water tank 301.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-rotor plant protection drone, comprising a drone body (1), characterized in that: Spraying mechanisms (2) are bolted to both sides of the lower end of the drone body (1); a fixing mechanism (4) is fixedly arranged in the middle of the drone body (1); a storage mechanism (3) is fixedly arranged inside the fixing mechanism (4); and electric telescopic rods (5) are fixedly arranged on both sides of the drone body (1); The two spraying mechanisms (2) each comprise a connecting plate (203), the front ends of the bottom surfaces of the two connecting plates (203) are hingedly provided with a conveying box (201), the lower ends of the two conveying boxes (201) are fixedly provided with a plurality of spray heads (202), the storage mechanism (3) comprises a water tank (301), a water pump (302) is fixedly provided inside the water tank (301), a connecting pipe (305) is fixedly provided at the upper end of the water tank (301), a water inlet (304) is fixedly provided at the upper end of the water tank (301), a water pipe (303) is fixedly provided at the output end of the water pump (302), and the storage mechanism (3) comprises a water tank (301), a water pump (302) is fixedly provided inside the water tank (301), a connecting pipe (305) is fixedly provided at the upper end of the water tank (301), a water inlet (304) is fixedly provided at the upper end of the water tank (301), and a water pipe (303) is fixedly provided at the output end of the water pump (302). The water pipe (303) is fixedly connected to the connecting pipe (305) at a side away from the output end of the water pump (302); the fixing mechanism (4) comprises a fixing frame (405); threaded rods (403) are threadedly arranged on both sides of the fixing frame (405); limit screw rods (402) are threadedly arranged on both sides of the upper end of the fixing frame (405); clamping plates (404) are slidably arranged on both sides of the fixing frame (405); adjustment blocks (401) are fixedly arranged on the sides of the two threaded rods (403) away from the drone; and the two threaded rods (403) are rotatably connected to the clamping plates (404).

2. A multi-rotor plant protection drone according to claim 1, characterized in that: The drone body (1) comprises a body (104) and a bottom plate (103), connecting rods (102) are fixedly arranged at the four corners of the lower end of the body (104), and fixing rods (105) are fixedly arranged at the four corners of the body (104).

3. A multi-rotor plant protection drone according to claim 2, characterized in that: Two supporting feet (101) are fixedly provided at the lower ends of the four fixing rods (105), and the lower ends of the four connecting rods (102) are fixedly connected to the bottom plate (103).

4. The multi-rotor plant protection UAV according to claim 2, characterized in that: Motors (107) are fixedly disposed at both ends of the four fixing rods (105) on a side away from the drone, and blades (106) are fixedly disposed at the output ends of the plurality of motors (107).

5. The multi-rotor plant protection drone according to claim 1, characterized in that: The upper ends of the two conveying boxes (201) are both hingedly connected to the output end of the electric telescopic rod (5), and the two conveying boxes (201) are fixedly connected via a pipeline and a connecting pipe (305).

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