WO2022040856A1

WO2022040856A1 - Multi-rotor unmanned aerial vehicle

Info

Publication number: WO2022040856A1
Application number: PCT/CN2020/110788
Authority: WO
Inventors: 刘浩源
Original assignee: 唐山哈船科技有限公司
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2022-03-03

Abstract

The present invention belongs to the technical field of unmanned aerial vehicles. In particular, provided is a multi-rotor unmanned aerial vehicle. The multi-rotor unmanned aerial vehicle of the present invention comprises a vehicle body, wherein a partition plate is fixedly mounted in the vehicle body; a blade frame is fixedly mounted at the bottom of the partition plate; a first drive rod is rotatably connected in the blade frame, one end of the first drive rod is fixedly connected to blades, and a first bevel gear is fixedly connected to the first drive rod; and one side of the blade frame is rotatably connected to a second drive rod, and one end of the second drive rod is fixedly connected to a second bevel gear. The present invention has a simple structure. Heat dissipation can be performed on the unmanned aerial vehicle when the unmanned aerial vehicle is hot, and the unmanned aerial vehicle can achieve the effect of buffering and damping when landing, and is convenient for people to use.

Description

A multi-rotor drone

technical field

The invention relates to the technical field of unmanned aerial vehicles, in particular to a multi-rotor unmanned aerial vehicle.

Background technique

A multi-rotor aircraft is referred to as a drone, which is an aircraft that has multiple positive angle of attack rotors on an aircraft to generate lift and rotate in different directions to overcome the anti-torque force. Because multiple rotors rotate in different directions, the torque is zero, and even hands-free hovering can be achieved, and the manual control is also easy to operate. While shortening the pilot training time, the stability is also improved. If a flight controller is installed, then the complex attitude control program can be ignored, and even the fixed-wing flight control program that can be bought everywhere can be displaced.

When the existing multi-rotor drone carries a camera for aerial photography, the angle adjustment cannot be performed to shoot the bottom of the drone, and after the drone has been flying for a long time, the body will become seriously hot, which will cause the body to be destroyed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problem that when the existing multi-rotor unmanned aerial vehicle on-board camera performs aerial photography, the angle adjustment cannot be performed to shoot the bottom of the unmanned aerial vehicle, and the body will become seriously hot after the unmanned aerial vehicle has been flying for a long time. It will cause the shortcomings of the body destruction situation, and a multi-rotor UAV is proposed.

In order to achieve the above purpose, the present invention provides a multi-rotor unmanned aerial vehicle, comprising a body, a baffle plate is fixedly installed in the body, a fan blade frame is fixedly installed at the bottom of the baffle plate, and the fan blade frame is rotatably connected to a first drive One end of the first driving rod is fixedly connected with a fan blade, and the first driving rod is fixedly connected with a first bevel gear; one side of the fan blade frame is rotatably connected with a second driving rod, and one end of the second driving rod is fixed A second bevel gear is connected, and the second bevel gear is meshed with the first bevel gear; the top of the fan blade frame and the partition are both provided with a first long hole; one side of the fan blade frame is fixedly installed with a bracket A first motor is fixedly installed on the support plate, and the output shaft of the first motor and the second driving rod are fixedly connected; a cold air box is fixedly installed in the body, one side of the cold air box is connected with a cold air pipe, and one end of the cold air pipe is connected with One side of the fan blade frame is connected, and a valve is arranged on the cold air pipe.

Preferably, a third driving rod is rotatably connected to the top of the body, one end of the third driving rod is fixedly connected with a main wing, a second motor is fixedly installed on the partition, and the output shaft of the second motor is fixed to the third driving rod connect.

Preferably, brackets are fixedly connected to both sides of the body, frames are provided on both brackets, communication pipes are connected to both sides of the body, and one end of the two communication pipes is connected to one side of the two frames respectively. Connected.

Preferably, the bottoms of the two frames are provided with filter screens, the tops of the two frames are rotatably connected with a fourth drive rod, one end of the two fourth drive rods are fixedly connected with the auxiliary wings, and the two frames are fixed inside A third motor is installed, and the output shaft of the third motor is fixedly connected with the fourth driving rod.

Preferably, both ends of the bottom of the body are fixedly connected with support columns, a sixth drive rod is rotatably connected between the two support columns, and one end of the two sixth drive rods is fixedly connected with a fourth bevel gear. A gear shaft is fixedly connected to the sixth driving rod.

Preferably, the bottom of the body is rotatably connected with a fifth drive rod, one end of the fifth drive rod is fixedly connected with a third bevel gear, the third bevel gear is meshed with the fourth bevel gear, and the body is fixedly connected with a fourth motor , the output shaft of the fourth motor is fixedly connected with the fifth drive rod.

Preferably, the bottom of the body is fixedly connected with a bracket, the bottom of the bracket is rotatably connected with a rotating column, the rotating column is fixedly connected with a convex gear, one end of the convex gear is fixedly connected with a camera, and the convex gear and the gear shaft are fixedly connected.

Preferably, symmetrical recesses are arranged in the two support columns, sliding rods are arranged in the two symmetrical recesses, two long boards are respectively slidably connected to the four sliding rods, and the four sliding rods are sleeved. Springs are provided, one end of the four springs is respectively fixedly connected with the two sides of the two long boards, the bottoms of the two long boards are fixedly connected with pillars, and the bottoms of the two pillars are provided with universal wheels.

Compared with the prior art, the advantages of the present invention are:

(1) In this scheme, two struts, two long boards, four slide bars and four springs are set. When the drone lands, the two struts are under pressure to drive the two long boards to slide on the four slide bars. At the same time, the two long plates compress the four springs to achieve the purpose of buffering and shock absorption.

(2) In this scheme, since the fan blade frame, the first driving rod, the fan blade, the cold air box, the cold air pipe and the valve are arranged, the valve is opened to release the cold air from the cold air box through the cold air pipe and flow into the fan blade frame, and the first driving rod drives the fan blade frame. The fan blade rotates to blow out the cold air, realizing the purpose of dissipating heat to the device.

The invention is simple in structure and convenient to use, can dissipate heat when the drone is hot, and can play the role of buffering and shock absorption when the drone is landed, which is convenient for people to use.

Description of drawings

FIG. 1 is a schematic structural diagram of a multi-rotor unmanned aerial vehicle according to an embodiment of the present invention.

FIG. 2 is a schematic side view structural diagram of a camera and a convex gear of a multi-rotor UAV according to an embodiment of the present invention.

FIG. 3 is a three-dimensional structural schematic diagram of a longboard of a multi-rotor unmanned aerial vehicle according to an embodiment of the present invention.

4 is a schematic structural diagram of part A of a multi-rotor unmanned aerial vehicle according to an embodiment of the present invention.

FIG. 5 is a schematic structural diagram of part B of a multi-rotor unmanned aerial vehicle according to an embodiment of the present invention.

In the figure: 1 body, 2 partition plate, 3 fan blade frame, 4 first drive rod, 5 fan blades, 6 first bevel gear, 7 second drive rod, 8 second bevel gear, 9 first motor, 10 air conditioner Box, 11 Cold Air Pipe, 12 Valve, 13 Second Motor, 14 Third Drive Rod, 15 Main Wing, 16 Bracket, 17 Frame, 18 Third Motor, 19 Fourth Drive Rod, 20 Aerial Wings, 21 Filter , 22 connecting pipe, 23 supporting column, 24 fourth motor, 25 fifth driving rod, 26 third bevel gear, 27 sixth driving rod, 28 fourth bevel gear, 29 gear shaft, 30 bracket, 31 rotating column, 32 Camera, 33 convex gears, 34 concave seats, 35 sliding rods, 36 springs, 37 long plates, 38 pillars.

detailed description

The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings in this embodiment. Obviously, the described embodiments are only a part of the embodiments, not all of the embodiments.

Example 1

1-5, a multi-rotor UAV according to an embodiment of the present invention includes a body 1, a partition 2 is fixedly installed in the body 1, and a heat dissipation device is arranged under the partition, and the bottom of the partition 2 is fixedly installed with The fan blade frame 3 is rotatably connected to the first driving rod 4 , one end of the first driving rod 4 is fixedly connected with the fan blade 5 , and the first driving rod 4 is fixedly connected with the first bevel gear 6 . One side of the fan blade frame 3 is rotatably connected with a second drive rod 7 , and one end of the second drive rod 7 is fixedly connected with a second bevel gear 8 , which meshes with the first bevel gear 6 . The top of the fan blade frame 3 and the partition plate 2 are both provided with first long holes. A support plate is fixedly installed on one side of the fan blade frame 3, and a first motor 9 is fixedly installed on the support plate for driving the fan blade to rotate. The output shaft of the first motor 9 and the second driving rod 7 are fixedly connected. A cold air box 10 is fixedly installed in the body 1. One side of the cold air box 10 is connected with a cold air pipe 11. One end of the cold air pipe 11 is communicated with one side of the fan blade frame 3, and the cooling effect is enhanced by blowing cold air through the fan blade. There is a valve 12 on it.

In this embodiment, a third drive rod 14 is rotatably connected to the top of the body 1 , one end of the third drive rod 14 is fixedly connected to a main wing 15 , and a second motor 13 is fixedly installed on the partition plate 2 , and the output of the second motor 13 The shaft is fixedly connected to the third drive rod 14 .

In the present embodiment, brackets 16 are fixedly connected to both sides of the body 1 , frames 17 are provided on both brackets 16 , and communication pipes 22 are connected to both sides of the body 1 , and one end of the two communication pipes 22 are respectively It communicates with one side of the two frames 17 .

In this embodiment, the bottoms of the two frames 17 are provided with filters 21 , the tops of the two frames 17 are rotatably connected to the fourth driving rods 19 , and one end of the two fourth driving rods 19 is fixedly connected to the auxiliary wing 20. A third motor 18 is fixedly installed in the two frames 17, and the output shaft of the third motor 18 is fixedly connected with the fourth driving rod 19.

In this embodiment, both ends of the bottom of the body 1 are fixedly connected with support columns 23 , a sixth drive rod 27 is rotatably connected between the two support columns 23 , and one end of the two sixth drive rods 27 is fixedly connected with a fourth drive rod 27 . A gear shaft 29 is fixedly connected to the bevel gear 28 and the two sixth driving rods 27 .

In this embodiment, a fifth drive rod 25 is rotatably connected to the bottom of the body 1 , and a third bevel gear 26 is fixedly connected to one end of the fifth drive rod 25 . The third bevel gear 26 meshes with the fourth bevel gear 28 , and the body 1 A fourth motor 24 is fixedly connected inside, and the output shaft of the fourth motor 24 is fixedly connected with the fifth driving rod 25 .

In this embodiment, a bracket 30 is fixedly connected to the bottom of the body 1, a rotating column 31 is rotatably connected to the bottom of the bracket 30, a convex gear 33 is fixedly connected to the rotating column 31, and one end of the convex gear 33 is fixedly connected to the camera 32. The convex gear 33 and gear shaft 29.

In this embodiment, symmetrical recesses 34 are provided in the two support columns 23 , sliding rods 35 are provided in the two symmetrical recesses 34 , and two long plates 37 are respectively slidably connected to the four sliding rods 35 . , the four sliding rods 35 are all sleeved with springs 36, one end of the four springs 36 are respectively fixedly connected with the two sides of the two long plates 37, and the bottoms of the two long plates 37 are fixedly connected with pillars 38, two pillars The bottom of the 38 is equipped with a universal wheel.

Embodiment 2

1-5, a multi-rotor UAV according to another embodiment of the present invention includes a body 1, and a partition 2 is welded and installed in the body 1, and a heat dissipation device is arranged under the partition, and the bottom of the partition 2 is welded and installed There is a fan blade frame 3, the fan blade frame 3 is rotatably connected with a first drive rod 4, one end of the first drive rod 4 is welded with a fan blade 5, and the first drive rod 4 is welded with a first bevel gear 6. One side of the fan blade frame 3 is rotatably connected with a second drive rod 7 , and one end of the second drive rod 7 is welded and connected with a second bevel gear 8 , which meshes with the first bevel gear 6 . The top of the fan blade frame 3 and the partition plate 2 are both provided with first long holes. A support plate is welded and installed on one side of the fan blade frame 3, and a first motor 9 is welded and installed on the support plate for driving the fan blade to rotate. The output shaft of the first motor 9 and the second driving rod 7 are welded and connected. A cold air box 10 is welded and installed in the body 1. A cold air pipe 11 is connected to one side of the cold air box 10. One end of the cold air pipe 11 is communicated with one side of the fan blade frame 3, and the cooling effect is enhanced by blowing cold air through the fan blade. The cold air pipe 11 There is a valve 12 on it.

In this embodiment, a third driving rod 14 is rotatably connected to the top of the body 1 , one end of the third driving rod 14 is welded and connected to the main wing 15 , and a second motor 13 is welded and installed on the partition plate 2 , and the output of the second motor 13 The shaft is connected with the third driving rod 14 by welding, and the output shaft of the second motor 13 can drive the third driving rod 14 to rotate.

In this embodiment, brackets 16 are welded on both sides of the body 1, and frames 17 are provided on both brackets 16. Both sides of the body 1 are connected with communicating pipes 22, and one end of the two communicating pipes 22 are respectively In communication with one side of the two frames 17, the two communication pipes 22 can be used for cooling air.

In this embodiment, the bottoms of the two frames 17 are provided with filters 21 , the tops of the two frames 17 are rotatably connected to the fourth drive rods 19 , and one end of the two fourth drive rods 19 is welded to the auxiliary wings 20. The third motor 18 is welded and installed in the two frames 17. The output shaft of the third motor 18 is welded to the fourth driving rod 19. The output shaft of the third motor 18 can drive the fourth driving rod 19 to rotate.

In this embodiment, both ends of the bottom of the body 1 are welded with support columns 23, a sixth drive rod 27 is rotatably connected between the two support columns 23, and one end of the two sixth drive rods 27 is welded with a fourth drive rod 27. The bevel gear 28 and the two sixth driving rods 27 are welded with a gear shaft 29, and the sixth driving rod 27 can drive the gear shaft 29 to rotate.

In this embodiment, a fifth drive rod 25 is rotatably connected to the bottom of the body 1 , and a third bevel gear 26 is welded and connected to one end of the fifth drive rod 25 . The third bevel gear 26 is meshed with the fourth bevel gear 28 , and the body 1 A fourth motor 24 is internally welded and connected, and the output shaft of the fourth motor 24 is connected to the fifth driving rod 25 by welding, and the output shaft of the fourth motor 24 can drive the fifth driving rod 25 to rotate.

In this embodiment, a bracket 30 is welded and connected to the bottom of the body 1, a rotating column 31 is rotatably connected to the bottom of the bracket 30, a convex gear 33 is welded to the rotating column 31, and one end of the convex gear 33 is welded to the camera 32. The convex gear 33 and the gear shaft 29, the gear shaft 29 can drive the convex gear 33 to rotate.

In this embodiment, symmetrical recesses 34 are provided in the two support columns 23 , sliding rods 35 are provided in the two symmetrical recesses 34 , and two long plates 37 are respectively slidably connected to the four sliding rods 35 . , the four sliding rods 35 are all sleeved with springs 36, one end of the four springs (36) are respectively welded to the two sides of the two long plates (37), and the bottoms of the two long plates 37 are welded and connected with pillars 38 , the bottoms of the two struts 38 are provided with universal wheels, and the two long plates 37 can compress four springs 36 .

In this embodiment, when the device is used, the second motor 13 is activated, and the output shaft of the second motor 13 drives the main wing 15 to rotate through the third drive rod 14, and simultaneously activates the two third motors 18, the two third motors The output shaft of 18 drives the two sub-wings 20 to rotate through the two fourth driving rods 19. When the main wing 15 and the two sub-wings 20 rotate at the same time, the device can be driven to take off. When it is hot, the valve 12 can be opened to release the cold air from the cold air box 10 and flow into the fan blade frame 3 through the cold air pipe 11. At the same time, the first motor 9 can be started. The output shaft of the first motor 9 drives the second cone through the second driving rod 7. The gear 8 rotates, the second bevel gear 8 drives the first bevel gear 6 to rotate, the first bevel gear 6 drives the fan blade 5 to rotate through the first drive rod 4, and the cold air is blown out of the fan blade frame 3, and then flows into the fan blade frame 3 through the two communication pipes 22. The temperature is lowered in the two frames 17, and the fourth motor 24 is activated when it is necessary to take pictures below the drone. The output shaft of the fourth motor 24 drives the third bevel gear 26 to rotate through the fifth drive rod 25, and the third bevel gear rotates. 26 drives the sixth drive rod 27 to rotate through the fourth bevel gear 28, the sixth drive rod 27 drives the convex gear 33 to rotate through the gear shaft 29, and the convex gear 33 drives the camera 32 to rotate to adjust the angle. When the drone falls to the ground, The two struts 23 are under pressure to drive the two long boards 37 to slide on the four sliding rods 35 , and at the same time, the two long boards 37 compress the four springs 36 to buffer and shock the drone.

The above descriptions are only preferred specific implementations of this embodiment, but the protection scope of this embodiment is not limited to this. The technical solutions and the inventive concept of the examples are equivalently replaced or changed, which should all be covered within the protection scope of this embodiment.

Claims

A multi-rotor unmanned aerial vehicle, comprising a body (1), characterized in that a partition plate (2) is fixedly installed in the body (1), and a fan blade frame (3) is fixedly installed at the bottom of the partition plate (2). , the fan blade frame (3) is rotatably connected to the first drive rod (4), one end of the first drive rod (4) is fixedly connected with the fan blade (5), and the first drive rod (4) is fixedly connected with the first cone Gear (6); a second drive rod (7) is rotatably connected to one side of the blade frame (3), and one end of the second drive rod (7) is fixedly connected with a second bevel gear (8), the second bevel gear (8) The gear (8) is meshed with the first bevel gear (6); the top of the fan blade frame (3) and the partition plate (2) are both provided with first long holes; A support plate is fixedly installed on the side, a first motor (9) is fixedly installed on the support plate, and an output shaft of the first motor (9) and a second drive rod (7) are fixedly connected; the body (1) is fixedly installed with a cold air Box (10), one side of the cold air box (10) is communicated with a cold air pipe (11), one end of the cold air pipe (11) is communicated with one side of the fan blade frame (3), and the cold air pipe (11) is provided with a valve ( 12).
The multi-rotor unmanned aerial vehicle according to claim 1, wherein a third driving rod (14) is rotatably connected to the top of the body (1), and one end of the third driving rod (14) is fixedly connected with a A second motor (13) is fixedly installed on the main wing (15) and the partition plate (2), and the output shaft of the second motor (13) is fixedly connected with the third driving rod (14).
The multi-rotor UAV according to claim 1, characterized in that brackets (16) are fixedly connected to both sides of the body (1), and frames are provided on both brackets (16). (17), both sides of the body (1) are connected with communicating pipes (22), and one end of the two communicating pipes (22) is respectively communicated with one side of the two frames (17).
A multi-rotor UAV according to claim 3, characterized in that the bottoms of the two frames (17) are provided with filter screens (21), and the tops of the two frames (17) are rotatably connected with a fourth A drive rod (19), one end of the two fourth drive rods (19) is fixedly connected with an auxiliary wing (20), and a third motor (18) is fixedly installed in the two frames (17), and the third motor ( The output shaft of 18) is fixedly connected with the fourth drive rod (19).
The multi-rotor unmanned aerial vehicle according to claim 1, characterized in that, both ends of the bottom of the body (1) are fixedly connected with support columns (23), and the two support columns (23) are rotatably connected. There is a sixth drive rod (27), a fourth bevel gear (28) is fixedly connected to one end of the two sixth drive rods (27), and a gear shaft (29) is fixedly connected to the two sixth drive rods (27). ).
The multi-rotor drone according to claim 1, characterized in that a fifth drive rod (25) is rotatably connected to the bottom of the body (1), and one end of the fifth drive rod (25) is fixedly connected with a The third bevel gear (26) meshes with the fourth bevel gear (28), the body (1) is fixedly connected with a fourth motor (24), and the output shaft of the fourth motor (24) It is fixedly connected with the fifth drive rod (25).
The multi-rotor UAV according to claim 1, wherein a bracket (30) is fixedly connected to the bottom of the body (1), and a rotating column (31) is rotatably connected to the bottom of the bracket (30), The rotating column (31) is fixedly connected with a convex gear (33), one end of the convex gear (33) is fixedly connected with a camera (32), the convex gear (33) and the gear shaft (29).
The multi-rotor unmanned aerial vehicle according to claim 5, characterized in that the two support columns (23) are provided with symmetrical recesses (34), and the two symmetrical recesses (34) are provided with symmetrical recesses (34). There are sliding rods (35), two long plates (37) are respectively slidably connected to the four sliding rods (35), springs (36) are sleeved on the four sliding rods (35), and the four springs (36) One end of the two long boards (37) is fixedly connected to both sides of the two long boards (37) respectively, the bottoms of the two long boards (37) are fixedly connected with pillars (38), and the bottoms of the two pillars (38) are provided with universal wheels.