An agricultural plant protection unmanned aerial vehicle

Abstract

The utility model relates to an agricultural plant protection unmanned plane. The technical scheme is that the unmanned plane body includes controller assembly, frame, wing and landing gear, the frame end part inserts and installs the wing, the upper portion of the bottom intersection of landing gear installs the pesticide spraying mechanism, the pesticide spraying mechanism includes the pesticide spraying pump of installing in the bottom center of landing gear, four discharge ports are arranged in the circumference side wall circumference of pesticide spraying pump, the one end of L type connecting pipe is communicated with the discharge port through the hose respectively, the other end of L type connecting pipe installs the nozzle, L type connecting pipe fixedly inserts and installs in the lower end of swing arm, the central hole of swing arm is movably sleeved on the connecting column, the connecting column on the both sides of swing arm is respectively sleeved with the torsional spring, the both ends of connecting column are fixedly connected with the bottom of nozzle fixed arm installed on the both sides of frame lower part respectively, the upper end of swing arm is fixedly arranged traction rope towards the center side, the other end of traction rope is fixedly connected with the output shaft side wall of motor respectively. The utility model has the advantages of convenient adjustment nozzle angle, convenient disassembly wing.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural plant protection drone technology, and relates to an agricultural plant protection drone. Background Technology

[0002] Agricultural drones, also known as unmanned aerial vehicles (UAVs), are unmanned aircraft used for agricultural and forestry plant protection operations. They are remotely controlled from the ground or controlled by navigation to perform spraying operations, and can spray pesticides, seeds, powders, etc. For electric quadcopter drones that spray pesticides, the pesticide spraying components use existing nozzles, which are modified and fixed to the lower part of the frame. The spray angle of the nozzles cannot be flexibly adjusted according to the needs of spraying, resulting in a limited spraying range during operation. In addition, the wings are fixed to the frame with bolts, which results in low modularity when replacing or maintaining the wings, making wing disassembly inconvenient.

[0003] Therefore, this utility model provides an agricultural plant protection drone to solve the above problems. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses an agricultural plant protection drone. The technical solution adopted is as follows: The drone body includes a controller assembly, a frame, wings, and landing gear. A pesticide storage tank is installed at the upper center of the frame. The controller assembly is installed at the top center of the pesticide storage tank. The four corners of the bottom of the pesticide storage tank are fixedly connected to the four corners of the upper end of the landing gear. Wing fixing rings are respectively provided at the four ends of the frame, and the wings are inserted into the wing fixing rings. A clamping assembly is provided on the lower side wall of the end of the frame connected to the wing fixing rings, which clamps the outer cover of the wing. A sprayer is installed on the upper part of the bottom intersection of the landing gear. The spraying mechanism includes a spraying pump installed at the center of the bottom of the landing gear. Four drain ports are arranged in a circumferential array on the circumferential sidewall of the spraying pump. Each drain port is connected to one end of an L-shaped connecting pipe via a flexible hose. A nozzle is installed at the other end of the L-shaped connecting pipe. The L-shaped connecting pipe is fixedly inserted into the lower end of a swing arm. The central hole of the swing arm is movably fitted onto a connecting column. Torsion springs are respectively fitted onto the connecting columns on both sides of the swing arm. Both ends of the connecting columns are fixedly connected to the bottom of nozzle fixing arms fixedly installed on both sides of the lower part of the frame. A traction rope is fixedly installed on the upper end of the swing arm facing the center. The other end of the traction rope is fixedly connected to the sidewall of the output shaft of a motor installed at the bottom of the frame.

[0005] As a preferred embodiment of this utility model, the snap-fit ​​assembly includes a pin, a retaining ring fixedly fitted in the middle of the pin, a spring fitted on the side of the retaining ring facing the center of the inner frame, a pin at the end of the spring facing the center of the inner frame and a pin on the side of the retaining ring facing outward are respectively movably inserted into a fixing ear, and the top of the fixing ear is fixedly connected to the bottom of the frame; by using the snap-fit ​​assembly, the wing and the frame can be quickly disassembled and replaced, improving the efficiency of replacement and maintenance.

[0006] In a preferred embodiment of this utility model, the outward-facing end of the pin is inserted through the outer sidewall of the wing cover.

[0007] As a preferred embodiment of this utility model, an injection port is provided at one corner of the upper end of the pesticide storage tank, and a one-way air inlet valve is provided on the pesticide storage tank diagonally opposite the injection port; by using a one-way air inlet valve, external air is allowed to enter, which facilitates the balance of air pressure in the pesticide storage tank, improves the drainage effect, and at the same time, prevents pesticide spillage.

[0008] As a preferred embodiment of this utility model, the spraying angle of the nozzle is 140 degrees; by using an angle-adjustable nozzle, the spraying angle and range can be flexibly changed according to the type of crop being sprayed, thereby improving the flexibility of the plant protection drone.

[0009] The beneficial effects of this utility model are as follows: By installing a spraying mechanism on the landing gear under the frame, the spraying mechanism uses a motor to drive the traction rope connected to the circumferential side wall of its output shaft to wind around, causing the upper ends of the four circumferentially arranged swing arms to move closer to the center, thereby tilting the four L-shaped connecting pipes and the lower nozzles outward, thus increasing the spraying range. When the motor reverses, the traction rope wound on the rotating shaft loosens, and under the action of the torsion spring, the swing arms rotate around the connecting column, so that the upper end of the swing arm faces outward and the lower end faces inward, thereby causing the four nozzles to spray inward simultaneously, thus reducing the spraying range. This allows for flexible adjustment of the nozzle angle within a certain range, improving the spraying range of the nozzles. At the same time, the wing can be quickly installed and removed from the frame through the clamping assembly under the frame, improving the convenience of subsequent maintenance. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the medicine storage box of this utility model;

[0012] Figure 3 This is a detailed schematic diagram of the mounting assembly of the drone body of this utility model;

[0013] Figure 4 This is a schematic diagram of the spraying mechanism of this utility model.

[0014] In the diagram: 1-UAV body, 2-Medicine storage tank, 3-Spraying mechanism, 4-Motor, 11-Controller assembly, 12-Frame, 121-Wing retaining ring, 13-Wing, 14-Landing gear, 15-Mounting assembly, 151-Pin, 152-Retaining ring, 153-Spring, 154-Fixing lug, 21-Injection port, 22-One-way air intake valve, 31-Spraying pump, 32-Hose, 33-L-shaped connecting pipe, 34-Nozzle, 35-Swing arm, 36-Connecting column, 37-Torsion spring, 38-Nozzle retaining arm, 39-Torsion rope. Detailed Implementation

[0015] Example 1

[0016] like Figures 1 to 4As shown, the agricultural plant protection drone of this utility model adopts the following technical solution: It includes a drone body 1, which comprises a controller assembly 11, a frame 12, wings 13, and landing gear 14. A pesticide storage tank 2 is installed at the upper center of the frame 12. A pesticide injection port 21 is opened at one corner of the upper end of the pesticide storage tank 2. A one-way air intake valve 22 is opened on the pesticide storage tank diagonally opposite the pesticide injection port 21. The controller assembly 11 is installed in the middle of the top of the pesticide storage tank 2. The four corners of the bottom of the pesticide storage tank 2 are respectively fixedly connected to the four corners of the upper end of the landing gear 14. The frame 1... The frame 12 has wing fixing rings 121 at each of its four ends. The wing 13 is inserted into the wing fixing rings 121. A locking assembly 15 is provided on the lower side wall of the end where the frame 12 connects to the wing fixing rings 121. The locking assembly 15 includes a pin 151. The outward end of the pin 151 is inserted through the outer side wall of the wing 13. A retaining ring 152 is fixedly fitted in the middle of the pin 151. A spring 153 is fitted on the side of the retaining ring 152 facing inward to the center of the frame. The pin at the end of the spring 153 facing inward to the center of the frame and the pin on the outward side of the retaining ring 152 are respectively movably inserted into the fixed... Inside the ear 154, the top of the fixing ear 154 is fixed to the bottom of the frame 12. The clamping assembly 15 clamps the outer cover of the wing 13 into the wing fixing ring through the pin 151. A spraying mechanism 3 is installed on the upper part of the bottom intersection of the landing gear 14. The spraying mechanism 3 includes a spraying pump 31 installed at the center of the bottom of the landing gear. The inlet end of the spraying pump 31 is connected to the bottom of the storage tank 2 through a pipe. Four discharge ports are arranged in a circumferential array on the circumferential side wall of the spraying pump 31. The discharge ports are respectively connected to one end of the L-shaped connecting pipe 33 through the hose 32. The other end of the L-shaped connecting pipe 33 is connected to the other end of the L-shaped connecting pipe 33. A nozzle 34 is installed at one end, with a spray angle of 140 degrees. An L-shaped connecting pipe 33 is fixedly inserted into the lower end of a swing arm 35. The center hole of the swing arm 35 is movably fitted onto a connecting post 36. Torsion springs 37 are respectively fitted onto the connecting posts on both sides of the swing arm 35. The two ends of the connecting post 36 are respectively fixedly connected to the bottom of nozzle fixing arms 38 fixedly installed on both sides of the lower part of the frame 12. A traction rope 39 is fixedly installed on the upper end of the swing arm 35 facing the center. The other end of the traction rope 39 is respectively fixedly connected to the side wall of the output shaft of the motor 4 installed at the bottom of the frame 12.

[0017] The working principle of this utility model is as follows: Pesticide is injected into the storage tank 2 through the injection port 21. The controller assembly 11 controls the spray pump 31 to operate. The spray pump 31 draws the pesticide from the storage tank 2 through a pipe, spraying it sequentially through a hose 32, a connecting pipe 33, and a nozzle 34, thus sprinkling it onto the crops below. If the spacing between the crops to be sprayed is large, and the spraying range of the nozzle 34 needs to be increased, the motor 4 can be controlled to rotate, causing the output shaft of the motor 4 to wind around the four traction ropes 39 on its circumferential sidewall, thereby... Four traction ropes 39 pull the upper end of the corresponding swing arm 35 towards the center, the swing arm 35 rotates around the corresponding connecting post 36, and the lower end of the swing arm 35 rotates outward, causing the L-shaped connecting pipe 33 and the nozzle 34 to tilt outward, thereby increasing the spray range; when it is necessary to disassemble and repair the wing 13, the retaining ring 152 on the corresponding pin 151 can be moved to compress the corresponding spring 153, thereby causing the pin 151 to be pulled out from the outer shell side wall of the wing 13, and the wing 13 can be lifted up to remove it from the corresponding wing fixing ring 121.

[0018] Electrical connection methods or structures not described in detail in this article are existing technologies.

[0019] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. An agricultural plant protection drone, comprising a drone body (1), the drone body (1) including a controller assembly (11), a frame (12), wings (13) and landing gear (14), characterized in that: A medicine storage tank (2) is installed at the upper center of the frame (12). The controller assembly (11) is installed at the top center of the medicine storage tank (2). The four corners of the bottom of the medicine storage tank (2) are respectively fixedly connected to the four corners of the upper end of the landing gear (14). A wing fixing ring (121) is opened at each of the four ends of the frame (12). The wing (13) is inserted into the wing fixing ring (121). A clamping assembly (15) is provided on the lower side wall of the end of the frame (12) connected to the wing fixing ring (121). The clamping assembly (15) clamps the outer cover of the wing (13). A spraying mechanism (3) is installed at the upper part of the bottom intersection of the landing gear (14). The spraying mechanism (3) includes a spraying pump (31) installed at the center of the bottom of the landing gear. The circumference of the spraying pump (31) is... Four drain ports are arranged in a circular array on the side wall. Each drain port is connected to one end of an L-shaped connecting pipe (33) via a hose (32). A nozzle (34) is installed at the other end of the L-shaped connecting pipe (33). The L-shaped connecting pipe (33) is fixedly inserted into the lower end of the swing arm (35). The center hole of the swing arm (35) is movably fitted onto a connecting post (36). Torsion springs (37) are respectively fitted onto the connecting posts on both sides of the swing arm (35). The two ends of the connecting post (36) are respectively fixedly connected to the bottom of the nozzle fixing arms (38) fixedly installed on both sides of the lower part of the frame (12). A traction rope (39) is fixedly installed on the side of the upper end of the swing arm (35) facing the center. The other end of the traction rope (39) is fixedly connected to the side wall of the output shaft of the motor (4) installed at the bottom of the frame (12).

2. The agricultural plant protection drone according to claim 1, characterized in that: The mounting assembly (15) includes a pin (151), a retaining ring (152) is fixedly mounted in the middle of the pin (151), a spring (153) is mounted on the side of the retaining ring (152) facing the center of the inner frame, the pin at the end of the spring (153) facing the center of the inner frame and the pin at the end of the retaining ring (152) facing the outer frame are respectively movably inserted into the fixing ear (154), and the top of the fixing ear (154) is fixed to the bottom of the frame (12).

3. An agricultural plant protection drone according to claim 2, characterized in that: The outward-facing end of the pin (151) is inserted through the outer sidewall of the wing (13).

4. An agricultural plant protection drone according to claim 1, characterized in that: A drug injection port (21) is provided at one corner of the upper end of the drug storage box (2), and a one-way air inlet valve (22) is provided on the drug storage box diagonally opposite the drug injection port (21).

5. An agricultural plant protection drone according to claim 1, characterized in that: The spray angle of the nozzle (34) is 140 degrees.

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