A foldable six-rotor drone

Abstract

The present invention relates to the technical field of unmanned aerial vehicles, and in particular to a foldable six-rotor unmanned aerial vehicle, comprising a body, a rotor installed on the body, a motor seat arranged at the end of the rotor, and a motor arranged in the motor seat for driving the blades to rotate, wherein the rotor comprises a fixed portion, a folding portion A and a folding portion B, one end of the folding portion A can be folded with the fixed portion, and the other end can be folded with the folding portion B; the fixed portion comprises a fixing frame, an adjusting mechanism assembled on the fixing frame, and a connecting piece arranged at the end of the fixing frame for connecting to the body, and the adjusting mechanism is used to cooperate with the folding portion A to perform a folding action; the present invention has a simple structure, the rotor can be folded, and it is convenient for packaging and storage.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to a foldable six-rotor unmanned aerial vehicle. Background Art

[0002] A six-rotor drone is a small unmanned aerial vehicle with flexible flight performance advantages such as vertical takeoff and landing and hovering. In some environments, it has better practicality than fixed-wing drones. It is powered by six circumferentially arranged electric motors, and its attitude is adjusted by changing the rotor speed. Position control is further achieved by adjusting the attitude. It has the advantages of excellent hovering performance, flexible movement, and high reliability of components. Therefore, it has broad application prospects in both military and civilian fields.

[0003] However, the six sets of circularly arranged rotors will cause the six-rotor drone to occupy a larger space, which is not conducive to the packaging and storage of the six-rotor drone. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes a foldable six-rotor drone with the characteristic of foldable rotors.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A foldable six-rotor drone, comprising a body, a rotor mounted on the body, a motor seat arranged at the end of the rotor, and a motor arranged in the motor seat for driving the blades to rotate, wherein the rotor comprises a fixed portion, a folding portion A and a folding portion B, wherein one end of the folding portion A can be folded with the fixed portion, and the other end can be folded with the folding portion B;

[0007] The fixing part includes a fixing frame, an adjusting mechanism mounted on the fixing frame, and a connecting piece provided at the end of the fixing frame for connecting to the machine body. The adjusting mechanism is used to cooperate with the folding part A to perform a folding action.

[0008] Preferably, the adjustment mechanism includes side plates, a fixed plate, an adjustment rod, a first shaft body, an elastic member, a strip hole, a rod hole A and a rod hole B, the side plates are symmetrically arranged on both sides of the fixing frame, the fixing plate is arranged between the side plates and remains relatively fixed to the fixing frame, a gap is left between the two sides of the fixing plate and the side plates, the two ends of the first shaft body are arranged in the strip hole and can move in the strip hole, the rod hole A and the rod hole B are respectively arranged on the fixing plate and the first shaft body, one end of the adjustment rod passes through the rod hole A and the rod hole B and is installed with a limiting block, and the other end is provided with a pulling part, and the part of the adjustment rod located between the first shaft body and the fixed plate is sleeved with an elastic member.

[0009] Preferably, a second axial hole for connecting the folding portion A is provided at the end of the side plate.

[0010] Preferably, the folding portion A includes a folding frame A, a locking plate, a second shaft and a bayonet, the bayonet is opened on the locking plate and is adapted to the outer diameter of the first shaft, the locking plate and the side plate are rotatably connected through the second shaft, and a chamfered portion is provided at one end of the locking plate close to the fixed frame.

[0011] Preferably, both ends of the second shaft body pass through the second shaft hole and are sleeved with a first fastening nut.

[0012] Preferably, the folding portion B includes a folding frame B, a bracket, and a third axis, and the folding frame B and the bracket are rotatably connected via the third axis.

[0013] Preferably, a first axial hole for connecting to the bracket is opened on the folding frame B, and two ends of the third shaft body pass through the first axial hole and the bracket in sequence and are sleeved with a second fastening nut.

[0014] Preferably, a connecting hole is provided on the connecting sheet.

[0015] Preferably, a buffer spring is provided between the connecting piece and the fixing frame.

[0016] Preferably, the elastic member is a spring.

[0017] The above technical solution of the present invention has the following beneficial technical effects:

[0018] The invention has a simple structure and the rotor can be folded, so it is convenient to pack and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the rotor of the present invention from one viewing angle;

[0021] Figure 3 It is a partial structural schematic diagram of the folding frame B of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotor of the present invention in one state;

[0023] Figure 5 It is a schematic diagram of the structure of the fixing frame and the connecting piece of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the side plate in one embodiment of the present invention;

[0025] Figure 7 It is a schematic diagram of the sliding cover structure in the present invention.

[0026] Reference numerals:

[0027] 1. Body; 2. Rotor; 3. Motor seat; 4. Blade; 5. Fixed frame; 6. Folding frame A; 7. Folding frame B; 8. Side plate; 9. Strip hole; 10. Block; 11. First fastening nut; 12. Second fastening nut; 13. Fixed plate; 14. Adjusting rod; 15. Rod hole A; 16. Elastic member; 17. First shaft body; 18. Rod hole B; 19. Limit block; 20. Bayonet; 21. Chamfered part; 22. Bracket; 23. Third shaft body; 24. Connecting piece; 25. Connecting hole; 26. Pulling part; 27. Second shaft body; 28. Buffer spring; 29. ​​First shaft hole; 30. Second shaft hole; 31. Clamping plate; 32. Slide groove; 33. Slide cover; 34. Slider. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present invention. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0029] The solution of a foldable six-rotor drone proposed by the present invention is as follows:

[0030] Reference Figure 1-5 .

[0031] A foldable six-rotor drone, comprising a body 1, a rotor 2 mounted on the body 1, a motor base 3 arranged at the end of the rotor 2, and a motor arranged in the motor base 3 for driving a blade 4 to rotate, wherein the rotor 2 comprises a fixed portion, a folding portion A and a folding portion B, wherein one end of the folding portion A can be folded with the fixed portion, and the other end can be folded with the folding portion B;

[0032] The fixing portion includes a fixing frame 5, an adjusting mechanism mounted on the fixing frame 5, and a connecting piece 24 provided at an end of the fixing frame 5 for connecting to the machine body 1. The adjusting mechanism is used to cooperate with the folding portion A to perform a folding action.

[0033] In this embodiment, the body 1 of the UAV is a regular hexagon, and six rotors are arranged on six sides.

[0034] The rotor of the present invention is provided with a fixing portion, a folding portion A and a folding portion B, wherein the fixing portion is used to fix the rotor 2 to the fuselage 1, and the folding portion A and the folding portion B are used to realize the folding of the rotor.

[0035] It should be noted that the motor base 3 is fixedly assembled at one end of the folding portion B.

[0036] In a specific embodiment, reference Figure 4 The adjusting mechanism includes a side plate 8, a fixed plate 13, an adjusting rod 14, a first shaft body 17, an elastic member 16, a strip hole 9, a rod hole A15 and a rod hole B18. The side plates 8 are symmetrically arranged on both sides of the fixing frame 5. The fixing plate 13 is arranged between the side plates 8 and is relatively fixed to the fixing frame 5. A gap is left between the two sides of the fixing plate 13 and the side plates 8. The two ends of the first shaft body 17 are arranged in the strip hole 9 and can move in the strip hole 9. The rod hole A15 and the rod hole B18 are respectively arranged on the fixing plate 13 and the first shaft body 17. One end of the adjusting rod 14 passes through the rod hole A15 and the rod hole B18 and is installed with a limiting block 19, and the other end is provided with a pulling portion 26. The part of the adjusting rod 14 located between the first shaft body 17 and the fixed plate 13 is sleeved with an elastic member 16, which can be a spring.

[0037] In this embodiment, the fixing plate 13 is fixed to the fixing frame 5, and can be fixed by strong glue or by screws. The fixing plate 13 is fixed to the fixing frame 5. The two ends of the first shaft 17 pass through the strip holes and the rear ends are equipped with stoppers 10, and the purpose of the stoppers 10 is to prevent the first shaft 17 from being separated from the strip holes 9.

[0038] Furthermore, a second axial hole 30 for connecting the folding portion A is provided at the end of the side plate 8 .

[0039] The folding portion A includes a folding frame A6, a locking plate 31, a second shaft 27 and a bayonet 20. The bayonet 20 is opened on the locking plate 31 and is adapted to the outer diameter of the first shaft 17. The locking plate 31 and the side plate 8 are rotatably connected through the second shaft 27. A chamfered portion 21 is provided at one end of the locking plate 31 close to the fixing frame 5.

[0040] It can be further understood that the chamfered portion 21 is designed to enable the locking plate 31 to rotate along the circumferential direction of the shaft body 27 .

[0041] In this embodiment, both ends of the second shaft body 27 pass through the second shaft hole 30 and are sleeved with first fastening nuts.

[0042] It should be noted that there is a gap between the two sides of the fixing plate 13 and the side plates 8 . The purpose of the gap is to facilitate the placement of the locking plate 31 when the folding portion A is folded, thereby effectively avoiding obstruction of the locking plate 31 .

[0043] In this embodiment, the folding portion B includes a folding frame B7, a bracket 22, and a third shaft 23. The folding frame B7 is rotatably connected to the bracket 22 via the third shaft 23. The folding frame B7 is provided with a first shaft hole 29 for connecting to the bracket 22. Both ends of the third shaft 23 pass through the first shaft hole 29 and the bracket 22 in sequence, and are sleeved with a second fastening nut 12.

[0044] The bracket 22 is fixedly arranged at one end of the folding frame A6, and a hole is also opened on the bracket 22 corresponding to the first shaft hole 29 to facilitate the passage of the third shaft 23, and then cooperate with the second fastening nut 12 to realize rotation or fastening.

[0045] In one embodiment, a connecting hole 25 is formed on the connecting piece 24 , and screw holes should also be provided at positions corresponding to the connecting holes 25 on the machine body 1 to facilitate installation of the connecting piece 24 .

[0046] In one embodiment, a buffer spring 28 is provided between the connecting piece 24 and the fixing frame 5 to improve the toughness of the rotor 2. Under normal conditions, the buffer spring 28 is in a normal state.

[0047] In some embodiments, a slide groove 32 is provided on the side panel 8, and a slide cover 33 is provided in cooperation therewith. A slider 34 is provided at the end of the slide cover 33. When in use, the slider 34 is embedded in the slide groove 32 and can slide along the length direction of the slide groove 32.

[0048] In the present application, a wire hole for passing the power supply line is provided on the drone body 1. In an optional embodiment, the wires passing through the wire hole can be fixed at the edges of the fixed part, the folding part A, and the folding part B by means of wire clips, snaps, etc. At the position where folding is required, the wires are left long for easy folding, and then a hole is opened on the motor seat 3 to introduce the wires into the motor seat 3 to connect with the motor.

[0049] In some implementations, the arrangement of the wires can also be that long holes are opened at corresponding positions of the fixed frame 5, the folding frame A6, and the folding frame B7, so that the wires passing through the warp holes can sequentially pass through the long holes on the fixed frame 5, the folding frame A6, and the folding frame B7 into the motor seat 3 to achieve the installation of the wires. Similarly, the wires at each folding position are left longer.

[0050] The specific wiring method depends on actual use and will not be described here.

[0051] Rotor folding process: Loosen the second fastening nut 12, fold the folding part B, so that the folding frame B7 fits with the folding frame A6, rotate the rotor 2, so that the position of the rotor 2 is consistent with the length direction of the folding frame A6 in the folding part A. Loosen the first fastening nut 11 to make the folding part A movable, pull the pulling part 26 fixed on one end of the adjustment rod 14, and the limit block 19 drives the first shaft body 17 to move in the strip hole 9. At this time, the elastic member 16 is compressed. In this process, the bayonet 20 is correspondingly engaged with the first shaft body 17. At this time, the engaging plate 31 is embedded in the gap between the fixed plate 13 and the side plate 8. Release the pulling part 26. At this time, under the action of the elastic member 16, the first shaft body 17 is tightly stuck in the bayonet 20 to complete the folding. Similarly, to unfold the rotor 2, you only need to do the reverse operation.

[0052] The sliding cover 33 slides out of the sliding groove 32 when the folding part A is folding, and slides into the sliding groove 32 after being completely folded, or slides into the sliding groove 32 after the folding part A is unfolded.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A foldable six-rotor drone, comprising a body (1), a rotor (2) mounted on the body (1), a motor base (3) arranged at the end of the rotor (2), and a motor arranged in the motor base (3) for driving blades (4) to rotate, characterized in that: The rotor (2) comprises a fixed portion, a folding portion A and a folding portion B, one end of the folding portion A can be folded with the fixed portion, and the other end can be folded with the folding portion B; The fixing portion comprises a fixing frame (5), an adjusting mechanism mounted on the fixing frame (5), and a connecting piece (24) provided at an end of the fixing frame (5) for connecting to the machine body (1), wherein the adjusting mechanism is used to cooperate with the folding portion A to perform a folding action; The adjustment mechanism comprises a side plate (8), a fixing plate (13), an adjustment rod (14), a first shaft (17), an elastic member (16), a strip hole (9), a rod hole A (15) and a rod hole B (18); the side plate (8) is symmetrically arranged on two sides of the fixing frame (5); the fixing plate (13) is arranged between the side plates (8) and is relatively fixed to the fixing frame (5); a gap is left between the two sides of the fixing plate (13) and the side plates (8); two ends of the first shaft (17) are The adjusting rod (14) is arranged in the strip hole (9) and can move in the strip hole (9), the rod hole A (15) and the rod hole B (18) are respectively arranged on the fixed plate (13) and the first shaft body (17), one end of the adjusting rod (14) passes through the rod hole A (15) and the rod hole B (18) and is installed with a limit block (19), and the other end is provided with a pulling part (26), and the part of the adjusting rod (14) located between the first shaft body (17) and the fixed plate (13) is sleeved with an elastic member (16); The end of the side plate (8) is provided with a second axial hole (30) for connecting to the folded portion A; The folding portion A comprises a folding frame A (6), a snap-fit ​​plate (31), a second shaft (27) and a snap-fit ​​(20); the snap-fit ​​plate (20) is provided on the snap-fit ​​plate (31) and is adapted to the outer diameter of the first shaft (17); the snap-fit ​​plate (31) and the side plate (8) are rotatably connected via the second shaft (27); and a chamfered portion (21) is provided at one end of the snap-fit ​​plate (31) close to the fixing frame (5); Both ends of the second shaft body (27) pass through the second shaft hole (30) and are sleeved with first fastening nuts (11); The folding portion B comprises a folding frame B (7), a bracket (22), and a third shaft (23); the folding frame B (7) and the bracket (22) are rotatably connected via the third shaft (23).

2. A foldable six-rotor drone according to claim 1, characterized in that: The folding frame B (7) is provided with a first axial hole (29) for connecting to the bracket (22); two ends of the third shaft body (23) pass through the first axial hole (29) and the bracket (22) in sequence and are sleeved with a second fastening nut (12).

3. The foldable six-rotor drone according to claim 1, characterized in that: The connecting piece (24) is provided with a connecting hole (25).

4. The foldable six-rotor drone according to claim 1, characterized in that: A buffer spring (28) is provided between the connecting piece (24) and the fixing frame (5).

5. The foldable six-rotor drone according to claim 1, characterized in that: The elastic member (16) is a spring.

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