Four-rotor spraying unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and discloses a four-rotor spraying unmanned aerial vehicle which comprises an unmanned aerial vehicle body, a laser radar is installed on the unmanned aerial vehicle body, a water tank is installed below the unmanned aerial vehicle body, a groove is formed in the inner wall of the water tank, a water pump is installed in the groove, and a water pump is installed in the water pump. A flight control board is installed below the laser radar, an airborne computer is arranged below the flight control board, a power distribution board is arranged below the airborne computer, and brittle supporting columns are connected between the laser radar and the flight control board, between the flight control board and the airborne computer and between the airborne computer and the power distribution board. A groove is dug in the water tank, and a high-power water pump is placed in the groove of the water tank, so that the connection of a water path is reduced, the risk that a water path pipeline is broken when the unmanned aerial vehicle body is in danger indoors is further reduced, the mass center of the water pump and the mass center of the water tank are balanced, and the laser radar, the flight control board, the airborne computer and the power distribution board are of discrete structures.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and in particular relates to a four-rotor spraying unmanned aerial vehicle. Background Art

[0002] A drone is an aircraft controlled by a remote control device or an autonomous program. Drones can perform a variety of tasks, including but not limited to aerial photography, agricultural monitoring, disaster assessment, military reconnaissance, cargo transportation, etc. Drones can be deployed quickly and adapt to various complex environments and conditions, such as operating in confined spaces or dangerous areas.

[0003] When existing indoor drones are in use, the water tank and water pump are connected by pipes. During flight, there is a risk of the water pipes rupturing. When the drone is hit, the drone as a whole is easily damaged, which affects the service life of the equipment and is inconvenient for local upgrades. Utility Model Content

[0004] The purpose of the utility model is to provide a four-rotor spraying UAV to solve the problems proposed in the above-mentioned background technology that the water tank and the water pump are connected by a pipe, there is a risk of rupture of the water pipe during flight, and when the UAV is collided, the entire UAV is easily damaged, thereby affecting the service life of the equipment and being inconvenient for local upgrades.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a four-rotor spraying UAV, comprising: a UAV body, a laser radar installed on the UAV body, a water tank installed below the UAV body, a groove opened on the inner wall of the water tank, and a water pump installed in the groove.

[0006] Preferably, a flight control board is installed below the laser radar, an onboard computer is provided below the flight control board, a power distribution board is provided below the onboard computer, and brittle struts are connected between the laser radar and the flight control board, between the flight control board and the onboard computer, and between the onboard computer and the power distribution board.

[0007] Preferably, the liquid outlet end of the water pump is connected to a spray head, a steering gear is installed on the drone body, the output end of the steering gear is connected to a steel cable, and the steel cable is connected to the spray head.

[0008] Preferably, a new blade is installed on the drone body, and a protective cover is installed outside the new blade.

[0009] Preferably, a bearing plate is provided at the bottom end of the water tank, a hollow column is installed on the upper end surface of the bearing plate, a movable column is installed on the lower end surface of the water tank, and a part of the movable column is located in the hollow column, an anti-slip component is provided between the hollow column and the movable column, a spring is installed between the hollow column and the movable column, and a rubber pad is installed at the bottom end of the bearing plate.

[0010] Preferably, the anti-slip assembly comprises an anti-slip groove and an anti-slip block, the anti-slip groove is provided on the inner wall of the hollow column, the anti-slip block is mounted on the outer wall of the movable column, and the anti-slip groove and the anti-slip block are adapted to each other.

[0011] Preferably, a front vision module is installed on the side wall of the drone body, a top view vision module is installed on the bottom of the drone body, and an optical flow module (and a laser TOF height determination module) are installed on the drone body.

[0012] Preferably, a wireless data transmitter and a receiver are installed on the drone body, and a battery compartment is installed on the drone body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model reduces the number of pipe connections by providing a water tank, a groove, and a water pump. When in use, a groove is dug in the water tank and a high-power water pump is placed in the groove of the water tank, thereby reducing the number of water connections and further reducing the risk of water pipe rupture when the drone body is in danger indoors, and balancing the center of mass of the water pump and the water tank.

[0015] (2) The utility model is provided with a laser radar, a power distribution board and a brittle support, etc., so that when in use, the laser radar, the flight control board, the airborne computer and the power distribution board are discrete structures. When a collision occurs, a part of them will be subjected to force, which will cause the brittle support to break, and then the module of the drone body will actively separate from the drone body, so that all devices will not be damaged by the destructive impact. At the same time, the discrete structure also provides convenient conditions for the subsequent local upgrade of the drone body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the water tank of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the front vision module of the utility model;

[0019] Figure 4 It is a bottom view of the utility model;

[0020] Figure 5 for Figure 1A magnified view of part A in FIG.

[0021] Figure 6 for Figure 2 A magnified view of part B in FIG.

[0022] In the figure: 1. UAV body; 2. LiDAR; 3. Water tank; 4. Flight control board; 5. Onboard computer; 6. Power distribution board; 7. Groove; 8. Water pump; 9. Sprinkler head; 10. Servo; 11. Brittle pillar; 12. New blade; 13. Protective cover; 14. Load-bearing plate; 15. Hollow column; 16. Movable column; 17. Spring; 18. Rubber pad; 19. Anti-slip groove; 20. Anti-slip block; 21. Front vision module; 22. Top view vision module; 23. Optical flow module; 24. Laser TOF height determination module; 25. Wireless data transmitter; 26. Receiver; 27. Battery compartment; 28. Steel cable. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 4 As shown, the utility model provides the following technical solutions: a four-rotor spraying UAV, comprising: a UAV body 1, a laser radar 2 is installed on the UAV body 1, a water tank 3 is installed below the UAV body 1, a groove 7 is opened on the inner wall of the water tank 3, and a water pump 8 is installed in the groove 7.

[0025] Furthermore, the liquid outlet of the water pump 8 is connected to a spray head 9 , a steering gear 10 is installed on the drone body 1 , a steel cable 28 is connected to the output end of the steering gear 10 , and the steel cable 28 is connected to the spray head 9 .

[0026] Furthermore, a front vision module 21 is installed on the side wall of the drone body 1, a top view vision module 22 is installed on the bottom of the drone body 1, and an optical flow module 23 and a laser TOF height determination module 24 are installed on the drone body 1.

[0027] Furthermore, a wireless data transmitter 25 and a receiver 26 are installed on the drone body 1 , and a battery compartment 27 is installed on the drone body 1 .

[0028] Through the above technical solution:

[0029] When in use, a groove 7 is dug in the water tank 3, and a high-power water pump 8 (weighing more than 350g) is placed in the groove 7 of the water tank 3, which reduces the connection of the water channel, further reduces the risk of water pipeline rupture when the drone body 1 is in danger indoors, and balances the center of mass of the water pump 8 and the water tank 3. This structure simplifies the complexity of the subsequent flight algorithm of the drone body 1. At the same time, due to the design of the center of gravity at the center, the probability of failure of the flight control system of the entire drone body 1 is reduced. The water tank 3 is located directly below the drone body 1, and the high-power water pump 8 is placed in the groove 7, so that the center of gravity is located at the geometric center and the water channel connection is reduced. The use of a higher-power water pump 8 greatly improves the spraying efficiency, and finally the steering gear 10 is used to rotate and drive the steel cable 28 to tighten or release. The front vision module 21 is located at the front end of the UAV and is used to sense the environment in front. The top-view vision module 22 is used to obtain the terrain information under the UAV. The optical flow module 23 is based on digital image processing technology and can obtain the relative displacement data of the UAV. The laser TOF height determination module 24 calculates the distance by emitting laser pulses and measuring the time difference of the reflected light pulses, thereby realizing accurate measurement of the height of the UAV. The wireless data transmitter 25 is used to send data remotely. The receiver 26 is used to connect the remote control. The battery compartment 27 contains batteries to provide power guarantee for the entire device.

[0030] See also Figure 1 and Figure 5 As shown, a flight control board 4 is installed below the laser radar 2, an onboard computer 5 is provided below the flight control board 4, a distribution board 6 is provided below the onboard computer 5, and brittle pillars 11 are connected between the laser radar 2 and the flight control board 4, between the flight control board 4 and the onboard computer 5, and between the onboard computer 5 and the distribution board 6.

[0031] Through the above technical solution:

[0032] When in use, from top to bottom are the discrete structures of the laser radar 2, the flight control board 4, the airborne computer 5 and the distribution board 6, with the brittle pillar 11 in the middle as the mechanical structure connection. When the drone body 1 does not collide, the brittle pillar 11 can provide sufficient mechanical support for the electronic devices; when the drone collides, the laser radar 2, the flight control board 4, the airborne computer 5 and the distribution board 6, some of which are subjected to force, will cause the brittle pillar 11 to break, and then the module of the drone body 1 will actively detach from the drone body 1, so that all devices will not be damaged by the destructive impact. At the same time, the discrete structure also provides convenient conditions for the subsequent local upgrade of the drone body 1.

[0033] For further information, see Figure 1-Figure 4As shown, a new blade 12 is installed on the drone body 1 , and a protective cover 13 is installed outside the new blade 12 .

[0034] Specifically, the protective cover 13 provides all-round protection. Compared with the traditional semi-protective design, the new blade 12 with 360° full protection effectively prevents the risk of propeller ejection during a collision, and further protects the safety of people inside the room when a collision occurs.

[0035] For further information, see Figure 1-Figure 6 As shown, a bearing plate 14 is provided at the bottom end of the water tank 3, a hollow column 15 is installed on the upper end surface of the bearing plate 14, a movable column 16 is installed on the lower end surface of the water tank 3, and a part of the movable column 16 is located in the hollow column 15, an anti-slip component is provided between the hollow column 15 and the movable column 16, a spring 17 is installed between the hollow column 15 and the movable column 16, and a rubber pad 18 is installed at the bottom end of the bearing plate 14.

[0036] Furthermore, the anti-slip assembly includes an anti-slip groove 19 and an anti-slip block 20 . The anti-slip groove 19 is provided on the inner wall of the hollow column 15 , and the anti-slip block 20 is installed on the outer wall of the movable column 16 . The anti-slip groove 19 and the anti-slip block 20 are adapted to each other.

[0037] Specifically, when the drone body 1 falls to the ground, the rubber pad 18 on the supporting plate 14 first undergoes elastic deformation, and then the movable column 16 moves in the hollow column 15, thereby causing the spring 17 to also undergo elastic deformation. Both the rubber pad 18 and the spring 17 can convert kinetic energy into elastic potential energy, thereby reducing the collision force between the drone body 1 and the ground, protecting the drone body 1. When the movable column 16 moves, it drives the anti-falling block 20 to move in the anti-falling groove 19, thereby making it difficult for the movable column 16 to fall off from the hollow column 15, thereby improving the safety and stability of the equipment.

[0038] 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 four-rotor spraying drone, characterized in that: include: A drone body (1) is provided, wherein a laser radar (2) is installed on the drone body (1), a water tank (3) is installed below the drone body (1), a groove (7) is provided on the inner wall of the water tank (3), and a water pump (8) is installed in the groove (7).

2. A four-rotor spraying drone according to claim 1, characterized in that: A flight control board (4) is installed below the laser radar (2), an onboard computer (5) is provided below the flight control board (4), a power distribution board (6) is provided below the onboard computer (5), and brittle pillars (11) are connected between the laser radar (2) and the flight control board (4), between the flight control board (4) and the onboard computer (5), and between the onboard computer (5) and the power distribution board (6).

3. A four-rotor spraying drone according to claim 2, characterized in that: The liquid outlet end of the water pump (8) is connected to a spray head (9), a steering gear (10) is installed on the drone body (1), the output end of the steering gear (10) is connected to a steel cable (28), and the steel cable (28) is connected to the spray head (9).

4. A four-rotor spraying drone according to claim 3, characterized in that: A new blade (12) is installed on the drone body (1), and a protective cover (13) is installed outside the new blade (12).

5. A four-rotor spraying drone according to claim 4, characterized in that: The bottom end of the water tank (3) is provided with a bearing plate (14), the upper end surface of the bearing plate (14) is installed with a hollow column (15), the lower end surface of the water tank (3) is installed with a movable column (16), and a part of the movable column (16) is located in the hollow column (15), an anti-slip component is provided between the hollow column (15) and the movable column (16), a spring (17) is installed between the hollow column (15) and the movable column (16), and a rubber pad (18) is installed at the bottom end of the bearing plate (14).

6. A four-rotor spraying drone according to claim 5, characterized in that: The anti-slip assembly comprises an anti-slip groove (19) and an anti-slip block (20); the anti-slip groove (19) is arranged on the inner wall of the hollow column (15); the anti-slip block (20) is installed on the outer wall of the movable column (16); and the anti-slip groove (19) and the anti-slip block (20) are matched.

7. A four-rotor spraying drone according to claim 6, characterized in that: A front vision module (21) is installed on the side wall of the drone body (1), a top view vision module (22) is installed on the bottom of the drone body (1), and an optical flow module (23) and a laser TOF height determination module (24) are installed on the drone body (1).

8. A four-rotor spraying drone according to claim 7, characterized in that: A wireless data transmitter (25) and a receiver (26) are installed on the drone body (1), and a battery compartment (27) is installed on the drone body (1).

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