A multi-rotor unmanned aerial vehicle for high-altitude automatic spraying

Abstract

This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a multi-rotor high-altitude automatic spraying UAV. It includes a UAV body with multiple sets of rotors and a material tank located at the bottom of the UAV body. It also includes a hollow fixed base located at the front end of one side of the bottom of the material tank. A material distribution plate is rotatably connected to the front end of the hollow fixed base. A rotating mechanism drives the material distribution plate to rotate. Multiple sets of nozzles are evenly distributed in a ring at the front end of the material distribution plate. Paint is delivered to the nozzles through the material distribution plate, and a spraying mechanism delivers paint from the material tank to the nozzles. The rotation of the material distribution plate drives the multiple sets of nozzles to perform dynamic spraying operations. This utility model uses a multi-nozzle dynamic spraying method to form multiple spare nozzles, ensuring uniform spraying while expanding the spraying range. Furthermore, blockage of a single nozzle will not affect the normal operation of the spraying work, ensuring continuous spraying and effectively enhancing the UAV spraying effect.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a multi-rotor high-altitude automatic spraying UAV. Background Technology

[0002] With the rapid development and progress of drone technology, more and more fields in modern life and production are beginning to use drones to carry out related operations, especially high-altitude spraying operations. Traditional manual spraying methods require the construction of scaffolding or the use of aerial work vehicles, which is not only time-consuming and labor-intensive, but also poses safety hazards. Therefore, drones are now being used to assist in the implementation of high-altitude spraying operations.

[0003] Most high-altitude spraying drones currently available only have one nozzle, resulting in a small spraying area per operation and often poor spray uniformity. Furthermore, if the nozzle becomes clogged, the drone must return to the ground for repairs, which can easily interrupt the spraying operation. Since high-altitude round trips take a long time, the drone's return for repairs reduces the efficiency of the spraying operation and extends the project timeline.

[0004] Therefore, in view of the low uniformity of existing high-altitude spraying drones and the fact that drones can only be recalled when the nozzles are clogged, a multi-rotor high-altitude automatic spraying drone can be designed. By using a multi-nozzle dynamic spraying method, multiple backup nozzles can be formed, which can ensure uniformity of spraying while expanding the spraying range. Moreover, the clogging of a single nozzle will not affect the normal operation of the spraying work, ensuring that the spraying operation can continue, thereby effectively enhancing the spraying effect of the drone. Utility Model Content

[0005] To overcome the problems that most high-altitude spraying drones have only one nozzle, resulting in a small spraying area and poor spraying uniformity, and that nozzle blockage forces the drone to return to the ground for repairs, which can easily interrupt the spraying operation and extend the project time, this utility model is proposed.

[0006] The technical solution of this utility model is as follows: a multi-rotor high-altitude automatic spraying drone, including a drone body with multiple sets of rotors and a material tank set at the bottom of the drone body, and a hollow fixed base. The hollow fixed base is set at the front end of one side of the bottom of the material tank. A material distribution plate is rotatably connected to the inner front end of the hollow fixed base. The material distribution plate is driven to rotate by a rotating mechanism. Multiple sets of nozzles are distributed in a ring at equal intervals at the front end of the material distribution plate. The spraying mechanism transports the paint in the material tank to the nozzles. The rotation of the material distribution plate drives the multiple sets of nozzles to carry out dynamic spraying operations.

[0007] Preferably, by setting up a material tank to store the spraying material, the rotor operation raises the main body of the drone to a high-altitude working position. The rotating mechanism drives the material distribution plate to rotate around the hollow fixed base, thereby driving multiple sets of nozzles to rotate synchronously. The spraying mechanism uses the paint in the material tank to transport the paint to the material distribution plate, and the material distribution plate transports the paint to the nozzles, so that multiple sets of nozzles rotate and spray the paint, thereby forming multiple spare nozzles. This ensures the uniformity of spraying while expanding the spraying range. Moreover, the blockage of a single nozzle will not affect the normal operation of the spraying work, ensuring the continuous spraying operation and enhancing the spraying effect of the drone.

[0008] Preferably, the spraying mechanism includes an L-shaped conveying pipe and a pump. The bottom of the material barrel is connected to the L-shaped conveying pipe, and the other end of the L-shaped conveying pipe passes through the hollow fixed base and is connected to the material distribution plate.

[0009] Preferably, the rotating mechanism includes a fixed frame, a drive shaft, a drive motor, a driving gear, and a driven gear. The fixed frame is installed inside the hollow fixed base, and the drive shaft is rotatably connected to the fixed frame. The drive motor is installed on the outside of the fixed frame, and the output end of the drive motor is connected to the drive shaft. The driving gear is installed on the outside of the drive shaft, and the driven gear is installed at the rear end of the material distribution plate. The driven gear is rotatably connected to the L-shaped material conveying pipe, and the driving gear meshes with the driven gear for rotatable connection.

[0010] Preferably, the rotating mechanism also includes a limiting ring block and heat dissipation holes. A limiting ring block is provided on the outer side of the dispensing plate. The limiting ring block is fitted and rotatably connected to the hollow fixed seat. Multiple sets of heat dissipation holes are provided on the rear wall of the hollow fixed seat.

[0011] As a preferred option, the drone's built-in controller receives signals from ground control equipment to flexibly control the operation of the material pump and drive motor.

[0012] Preferably, a photovoltaic panel is fixed to the top of the drone body via a support frame, thereby improving the drone's endurance.

[0013] Preferably, two sets of support legs are symmetrically arranged on both sides of the material tank, which stably support the drone body when it is recalled to the ground.

[0014] The beneficial effects of this utility model are:

[0015] During spraying operations, the paint canister is filled with paint material. The rotor lifts the drone to a high-altitude working position, driving the distribution plate to rotate around the hollow fixed base. This causes multiple sets of nozzles to rotate synchronously, then the paint in the canister is transported to the distribution plate, which then delivers the paint to the nozzles. This causes multiple sets of nozzles to rotate and spray paint, enabling dynamic spraying operations. Multiple spare nozzles are also created to address the problems of most high-altitude spraying drones having only one nozzle, resulting in a small spraying area, poor spray uniformity, and the need for the drone to return to the ground for repairs when the nozzle becomes clogged, which can easily interrupt the spraying operation and extend the project time. This method enhances the spraying effect of drones. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of a multi-rotor high-altitude automatic spraying drone according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the spraying mechanism of a multi-rotor high-altitude automatic spraying drone according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the hollow fixed base of a multi-rotor high-altitude automatic spraying drone according to this utility model.

[0019] Figure 4 The diagram shown is a partial three-dimensional structural schematic of the rotating mechanism of a multi-rotor high-altitude automatic spraying drone according to this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the material distribution tray and nozzle of a multi-rotor high-altitude automatic spraying drone according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. UAV body; 101. Photovoltaic panel; 2. Material bucket; 201. Support leg; 202. L-shaped material conveying pipe; 203. Material pump; 3. Hollow fixed base; 4. Material distribution plate; 401. Fixing frame; 402. Drive shaft; 403. Drive motor; 404. Drive gear; 405. Driven gear; 406. Limiting ring block; 407. Heat dissipation hole; 5. Nozzle. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1This utility model provides an embodiment: a multi-rotor high-altitude automatic spraying drone, including a drone body 1 with multiple sets of rotors and a material tank 2 located at the bottom of the drone body 1, and a hollow fixed base 3. The hollow fixed base 3 is located at the front end of one side of the bottom of the material tank 2. A material distribution plate 4 is rotatably connected to the front end of the inner side of the hollow fixed base 3. The material distribution plate 4 is driven to rotate by a rotating mechanism. Multiple sets of nozzles 5 are distributed in a ring at equal intervals at the front end of the material distribution plate 4. The spraying mechanism transports the paint in the material tank 2 to the nozzles 5. The rotation of the material distribution plate 4 drives the multiple sets of nozzles 5 to carry out dynamic spraying operations.

[0024] Please see Figure 2 In this embodiment, the spraying mechanism includes an L-shaped conveying pipe 202 and a pump 203. The bottom end of the material barrel 2 is connected to the L-shaped conveying pipe 202, and the other end of the L-shaped conveying pipe 202 passes through the hollow fixed seat 3 and is connected to the distribution plate 4. The pump 203 controls the opening and closing of the L-shaped conveying pipe 202, thereby using the L-shaped conveying pipe 202 to transport the paint in the material barrel 2 to the distribution plate 4.

[0025] Please see Figure 3 and Figure 4 In this embodiment, the rotating mechanism includes a fixed frame 401, a drive shaft 402, a drive motor 403, a driving gear 404, and a driven gear 405. The fixed frame 401 is disposed inside the hollow fixed base 3, and the drive shaft 402 is rotatably connected to the fixed frame 401. The drive motor 403 is disposed on the outside of the fixed frame 401, and its output end is connected to the drive shaft 402. The driving gear 404 is disposed on the outside of the drive shaft 402. The driven gear 405 is disposed at the rear end of the distributing disc 4, and is rotatably connected to the L-shaped conveying pipe 202. The driving gear 404 meshes with and is rotatably connected to the driven gear 405. The drive shaft 402 is rotatably connected to the fixed frame 401. At the same time, the position of the drive motor 403 is fixed by the fixed frame 401. The drive motor 403 drives the drive shaft 402 to rotate. The rotation of the drive shaft 402 drives the drive gear 404 to rotate. The rotation of the drive gear 404 drives the driven gear 405 to mesh and rotate. The rotation of the driven gear 405 drives the material distribution plate 4 to rotate synchronously, thereby flexibly driving multiple sets of nozzles 5 to rotate and carry out dynamic spraying operations. The UAV body 1 receives signals from the ground control equipment through the built-in controller and flexibly controls the operation status of the material pump 203 and the drive motor 403, thereby flexibly opening the L-shaped material conveying pipe 202 to carry out material conveying operations. The drive motor 403 is started to drive the drive shaft 402 to rotate, thereby driving all nozzles 5 to carry out dynamic spraying operations.

[0026] Please see Figure 3 and Figure 5In this embodiment, the rotating mechanism also includes a limiting ring block 406 and heat dissipation holes 407. The limiting ring block 406 is provided on the outer side of the distributing plate 4. The limiting ring block 406 is fitted and rotatably connected to the hollow fixed base 3. Multiple sets of heat dissipation holes 407 are provided on the rear wall of the hollow fixed base 3. When the distributing plate 4 rotates, the limiting ring block 406 rotates synchronously along the annular groove of the hollow fixed base 3. The limiting ring block 406 ensures the stable rotation of the distributing plate 4. At the same time, the heat dissipation holes 407 are used to dissipate heat from the drive motor 403 inside the hollow fixed base 3.

[0027] Please see Figure 1 In this embodiment, a photovoltaic panel 101 is fixed to the top of the drone body 1 by a support frame. The photovoltaic panel 101 converts light energy into electrical energy to improve the endurance of the drone body 1. Two sets of support legs 201 are symmetrically arranged on both sides of the material tank 2. When the drone body 1 is recalled to the ground, the support legs 201 stably support the drone body 1 to ensure that the drone body 1 lands stably.

[0028] Before the spraying operation, the main body of the drone 1 is placed stably on the ground by the support legs 201, the spraying material is filled into the material tank 2 through the injection port, and the rotor is controlled to lift the main body of the drone 1 to the high-altitude working position.

[0029] Subsequently, a running command is sent to the drive motor 403 on the fixed frame 401, which drives the drive shaft 402 to rotate, thereby causing the drive gear 404 on the drive shaft 402 to drive the driven gear 405 to mesh and rotate synchronously. The rotation of the driven gear 405 drives the material distribution plate 4 to rotate, causing the limiting ring block 406 to fit and rotate synchronously along the ring groove in the hollow fixed seat 3. The drive motor 403 in the hollow fixed seat 3 is cooled through the heat dissipation hole 407.

[0030] During the spraying operation, the material pump 203 is started to transport the paint in the material bucket 2 to the distribution plate 4 through the L-shaped material conveying pipe 202. Then, the paint is transported to the nozzle 5 through the distribution plate 4. At this time, the distribution plate 4 rotates and drives multiple sets of nozzles 5 to rotate synchronously, so that multiple sets of nozzles 5 rotate and spray paint, thus driving multiple sets of nozzles 5 to carry out dynamic spraying operations. In addition, the photovoltaic panel 101 converts light energy into electrical energy to improve the endurance of the drone body 1.

[0031] Through the above steps, by setting up a material tank 2 to store the spraying material, the rotor operation raises the main body 1 of the drone to a high-altitude working position. The rotating mechanism drives the material distribution plate 4 to rotate around the hollow fixed base 3, thereby driving multiple sets of nozzles 5 to rotate synchronously. The spraying mechanism transports the paint in the material tank 2 to the material distribution plate 4, and then the material distribution plate 4 transports the paint to the nozzles 5, so that multiple sets of nozzles 5 rotate and spray paint, thereby forming multiple spare nozzles 5, ensuring the uniformity of spraying while expanding the spraying range. Moreover, the blockage of a single nozzle will not affect the normal operation of the spraying work, ensuring the continuous operation of the spraying work.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention 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 the present invention.

Claims

1. A multi-rotor high-altitude automatic spraying drone, comprising a drone body (1) equipped with multiple sets of rotors and a material tank (2) disposed at the bottom of the drone body (1), characterized in that: It also includes a hollow fixed seat (3), which is located at the front end of the bottom side of the material barrel (2). The inner front end of the hollow fixed seat (3) is rotatably connected to a material distribution plate (4). The material distribution plate (4) is rotated by a rotating mechanism. Multiple sets of nozzles (5) are distributed in a ring at equal intervals at the front end of the material distribution plate (4). The paint in the material barrel (2) is transported to the nozzles (5) by the spraying mechanism. The rotation of the material distribution plate (4) drives the multiple sets of nozzles (5) to carry out dynamic spraying operations.

2. The multi-rotor high-altitude automatic spraying drone according to claim 1, characterized in that: The spraying mechanism includes an L-shaped material conveying pipe (202) and a material pump (203). The bottom end of the material barrel (2) is connected to the L-shaped material conveying pipe (202), and the other end of the L-shaped material conveying pipe (202) passes through the hollow fixed seat (3) and is connected to the material distribution plate (4).

3. The multi-rotor high-altitude automatic spraying drone according to claim 2, characterized in that: The rotating mechanism includes a fixed frame (401), a drive shaft (402), a drive motor (403), a drive gear (404), and a driven gear (405). The fixed frame (401) is installed inside the hollow fixed base (3). The drive shaft (402) is rotatably connected to the fixed frame (401). The drive motor (403) is installed on the outside of the fixed frame (401). The output end of the drive motor (403) is connected to the drive shaft (402). The drive gear (404) is installed on the outside of the drive shaft (402). The driven gear (405) is installed at the rear end of the material distribution plate (4). The driven gear (405) is rotatably connected to the L-shaped material conveying pipe (202). The drive gear (404) meshes with the driven gear (405) for rotatable connection.

4. The multi-rotor high-altitude automatic spraying drone according to claim 3, characterized in that: The rotating mechanism also includes a limiting ring block (406) and heat dissipation holes (407). The limiting ring block (406) is provided on the outer side of the distributing plate (4). The limiting ring block (406) is fitted and rotated with the hollow fixed seat (3). Multiple sets of heat dissipation holes (407) are opened on the rear wall of the hollow fixed seat (3).

5. A multi-rotor high-altitude automatic spraying drone according to claim 3, characterized in that: The drone body (1) receives signals from the ground control equipment via its built-in controller, and flexibly controls the operation of the material pump (203) and the drive motor (403).

6. The multi-rotor high-altitude automatic spraying drone according to claim 1, characterized in that: A photovoltaic panel (101) is fixed to the top of the drone body (1) by a support frame, which improves the endurance of the drone body (1).

7. The multi-rotor high-altitude automatic spraying drone according to claim 1, characterized in that: Two sets of support legs (201) are symmetrically arranged on both sides of the material bucket (2). When the drone body (1) is recalled to the ground, the support legs (201) stably support the drone body (1).

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