Pure electric short-distance take-off and landing manned folding soft flapping wing aircraft

Abstract

The utility model relates to the technical field of manned aircrafts, in particular to a pure electric short-distance take-off and landing manned folding soft flapping wing aircraft which comprises an aircraft body, a cockpit, two foldable main flapping wings, two auxiliary flapping wings, an empennage, two side rotor wings, two rear rotor wings and a ground traveling device. And the ground running device runs by adopting rollers, and the power system is purely electrically driven. The unmanned aerial vehicle is reasonable and compact in structure, convenient to operate and convenient to fly and drop in a short distance, the main flapping wings are designed to be folded in the left-right direction, occupied space is reduced, a pure electric power system is adopted, energy consumption is reduced, clean energy is adopted, and environmental protection is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of manned aircraft, in particular to a pure electric short-distance take-off and landing manned foldable soft flapping-wing aircraft. Background Art

[0002] The existing fixed-wing aircraft on the market have strict requirements on the use site, are noisy, consume a lot of energy, have a complex structure and are expensive; the existing rotorcraft have very low aerodynamic efficiency, poor flight stability and anti-interference performance, which has a great impact on the application of rotorcraft.

[0003] Flapping-wing aircraft is a bionic aircraft that uses the principle of aerodynamics generated by flying organisms in nature. Its characteristics are that it can utilize the ideal bionic effect to obtain higher lift through lift mechanisms such as wake airflow capture, saving energy, and its aerodynamic efficiency is higher than that of fixed-wing and rotorcraft in small sizes. However, at this stage, flapping-wing aircraft have difficulty taking off and still require a large area for ground driving. In addition, the degree of bionics is low, and the flapping wings cannot fold and flap up and down like bird wings.

[0004] Therefore, how to achieve short-distance landing and stable flight under existing technical conditions and use electrical energy to solve the problem of high fuel energy consumption is an urgent problem that technical personnel in this field need to solve. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technologies and provide a pure electric short-distance take-off and landing manned foldable soft flapping-wing aircraft.

[0006] A pure electric short-distance take-off and landing manned foldable soft flapping-wing aircraft, comprising a fuselage, a cockpit, two main flapping wings, two auxiliary flapping wings, a tail wing, two side rotors, two rear rotors and a ground driving device.

[0007] The cockpit is arranged at the front top of the fuselage, the two main flapping wings are respectively arranged on both sides of the fuselage and located behind the cockpit, the two auxiliary flapping wings are respectively arranged on both sides of the fuselage and located at the lower side of the tail end of the main flapping wings, the tail wing is located at the tail of the fuselage, the two side rotors are respectively arranged on both sides of the fuselage and located below the main flapping wings, the two rear rotors are located at the tail of the fuselage and are respectively arranged on both sides of the tail wing, and the ground driving device is arranged on the lower side of the fuselage.

[0008] The main flapping wings are foldable wings that can be folded and stored on both sides of the fuselage. A symmetrically arranged storage cabin is provided on the top side of the fuselage behind the cockpit. Each storage cabin is provided with a group of foldable wings. The foldable wings include a flapping wing frame that can be folded and opened. A soft flapping wing curtain is installed on the flapping wing frame. The soft flapping wing curtain can be folded or opened following the flapping wing frame. A power device is provided between the storage cabin and the fuselage to control the vibration of the foldable wings carried by the storage cabin.

[0009] Furthermore, the flapping-wing frame is provided with a first driving motor installed in the storage cabin, the output shaft end of the first driving motor is connected with a driving gear, and the upper side of the driving gear is meshed with an arc-shaped toothed plate;

[0010] The flapping wing skeleton includes a side fixed keel, a plurality of middle movable keels and a side movable keel, the side fixed keel is fixedly connected to the storage cabin, a rotating shaft is provided on the storage cabin at the rotation center of the middle movable keel and the side movable keel, and the plurality of middle movable keels and the side movable keel are rotatably connected to the rotating shaft;

[0011] The arc-shaped tooth plate is located on the lower side of the flapping-wing frame, the side movable keel is fixedly connected to the upper side of one end of the arc-shaped tooth plate, a plurality of intermediate movable keels are arranged on the upper side of the arc-shaped tooth plate and are located between the side fixed keel and the side movable keel, an arc-shaped groove is provided on the upper side of the arc-shaped tooth plate, a sliding part is provided in the arc-shaped groove on the bottom side of the intermediate movable keel, and the soft flapping-wing curtain is correspondingly connected to the side fixed keels, a plurality of intermediate movable keels and the side movable keels.

[0012] Furthermore, the side movable keel is fixedly connected to a guide keel which rotates around a rotating axis following the side movable keel.

[0013] Furthermore, the power device of the main flapping wing is provided by pure electricity through hydraulic pressure and gear transmission using the lever principle to drive the flapping wing to move up and down.

[0014] Furthermore, an arc-shaped extending keel device is also provided on the bottom side of the main flapping wing, and the arc-shaped telescopic keel device includes a plurality of nested and connected arc-shaped telescopic rails, the arc of each arc-shaped telescopic rail is a concentric circular arc, and the center of the circle is the axis of the rotating shaft, and each arc-shaped telescopic rail is provided with a keel connection point that can slide on the arc-shaped telescopic rail and is connected to the side fixed keel, a plurality of middle movable keels and the side movable keel, one end of the outermost arc-shaped telescopic rail of the arc-shaped telescopic keel device is fixedly connected to the storage cabin, and one end of the innermost arc-shaped telescopic rail is connected to the guide keel.

[0015] Furthermore, the tail comprises a tail installation box connected to the fuselage, a second drive motor and two sets of tail keels hinged at the same point in the tail installation box are installed in the tail installation box, an arc-shaped gear track is installed on the bottom side of the tail keel, and the bottom sides of the two arc-shaped gear tracks near the ends are both meshed with drive gears;

[0016] The output end of the second drive motor is connected to a driving gear, wherein the driving gear on the bottom side of one arc-shaped rack is directly meshed with the driving gear at the output end of the second drive motor, and the driving gear on the bottom side of the other arc-shaped rack is connected to the driving gear at the output end of the second drive motor via a transmission gear, and a soft flapping wing curtain is installed on the tail keel.

[0017] Furthermore, the fuselage adopts a carbon fiber and titanium alloy fuselage structure with high strength and light weight.

[0018] Furthermore, the ground travel device adopts a roller device, and a storage compartment for retracting and extending the rollers of the ground travel device is provided on the bottom side of the fuselage, and the rollers of the ground travel device are connected to the fuselage through a retracting mechanism.

[0019] Furthermore, the side rotor is fixedly connected to the fuselage or a rotor compartment is provided on both sides of the fuselage, and the side rotor is connected to the fuselage through a rotating bracket so that the side rotor can be folded through the rotating bracket and enter the rotor compartment.

[0020] Furthermore, it also includes a power system, which adopts a pure electric drive mode, and the main flapping wing, tail wing, side rotor, rear rotor and ground driving device are all electrically driven.

[0021] The advantages of the utility model compared with the prior art are as follows: the utility model has a reasonable structure, a compact structure, is easy to operate and manufacture, and adopts retractable soft flapping wings. During the flight, it can also flap up and down, and can be folded in the left and right directions to meet the flight needs. When folded, the structure is compact and it is convenient to drive and park on the ground; the tail wing adopts a retractable soft tail wing, which is conducive to the adjustment of the flight attitude; the rotor system can fly a short distance and land, and the air conversion is convenient, and the flight and parking are free; the pure electric energy makes this product environmentally friendly, energy-saving, and noiseless; the structure adopts titanium alloy and carbon fiber, which can greatly reduce the energy consumption cost during operation and use; the shape is novel and the market influence is strong. It can replace the existing air vehicles and ground vehicles and can be widely used in transportation, travel, entertainment, leisure, competition, transportation, military and many other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the first stereoscopic schematic diagram of a pure electric short-distance take-off and landing manned foldable soft flapping-wing aircraft of the utility model;

[0023] Figure 2This is a second stereoscopic schematic diagram of a pure electric short-distance take-off and landing manned foldable soft flapping-wing aircraft of the utility model;

[0024] Figure 3 It is a schematic diagram of the folding of the main flapping wing of a pure electric short-distance take-off and landing manned foldable soft flapping-wing aircraft of the utility model;

[0025] Figure 4 It is a schematic diagram of a skeleton structure of the main flapping wing of a pure electric short-distance take-off and landing manned folding soft flapping wing aircraft of the utility model;

[0026] Figure 5 It is a schematic diagram of an arc-shaped keel extension device on the bottom side of the main flapping wing of a pure electric short-distance take-off and landing manned folding soft flapping-wing aircraft of the utility model;

[0027] Figure 6 This is a schematic diagram of the skeleton structure of the tail wing of a pure electric short-distance take-off and landing manned foldable soft flapping-wing aircraft of the utility model.

[0028] As shown in the figure: 1. Fuselage; 2. Cockpit; 3. Main flapping wing; 4. Auxiliary flapping wing; 5. Tail wing; 6. Side rotor; 7. Rear rotor; 8. Ground driving device; 9. Storage cabin; 10. Soft flapping wing curtain; 11. First drive motor; 12. Driving gear; 13. Arc gear plate; 14. Arc groove; 15. Sliding part; 16. Second drive motor; 17. Arc telescopic rail; 18. Transmission gear; 19. Rotor cabin; 20. Rotating bracket; 21. Keel connection point; 301. Flapping wing skeleton; 302. Rotating shaft; 303. Guide keel; 3011. Side fixed keel; 3012. Middle movable keel; 3013. Side movable keel; 501. Tail installation box; 502. Tail keel; 503. Arc gear rail; 504. Drive gear. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of the embodiments of the present utility model, if a feature is referred to as being "set", "fixed", "connected" or "installed" on another feature, it may be directly set, fixed, connected to another feature, or indirectly set, fixed, connected, or installed on another feature.

[0032] In the description of the embodiments of the present utility model, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than" or "exceed" is involved, it should be understood as not including the number itself, if "above", "below" or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0034] like Figure 1-3 As shown, a pure electric short take-off and landing manned foldable soft flapping wing aircraft comprises a fuselage 1, a cockpit 2, two main flapping wings 3, two auxiliary flapping wings 4, a tail wing 5, two side rotors 6, two rear rotors 7 and a ground travel device 8;

[0035] The cockpit 2 is arranged at the front end top of the fuselage 1, the two main flapping wings 3 are respectively arranged on both sides of the fuselage 1 and located behind the cockpit 2, the two auxiliary flapping wings 4 are respectively arranged on both sides of the fuselage 1 and located at the lower side of the tail end of the main flapping wings 3, the tail 5 is located at the tail of the fuselage 1, the two side rotors 6 are respectively arranged on both sides of the fuselage and located below the main flapping wings 3, the two rear rotors 7 are located at the tail of the fuselage 1 and are respectively arranged on both sides of the tail 5, and the ground driving device 8 is arranged on the lower side of the fuselage 1.

[0036] like Figure 4As shown, the main flapping wing 3 is a foldable wing that can be folded and stored on both sides of the fuselage 1. The top side of the fuselage 1 is located behind the cockpit 2 and is provided with a symmetrically arranged storage cabin 9. Each storage cabin 9 is provided with a group of foldable wings. The foldable wings include a flapping wing skeleton 301 that can be folded and opened. A soft flapping wing curtain 10 is installed on the flapping wing skeleton 301. The soft flapping wing curtain 10 can be folded or opened following the flapping wing skeleton 301. A power device for controlling the vibration of the foldable wings carried by the storage cabin 9 is provided between the storage cabin 9 and the fuselage 1.

[0037] The flapping wing skeleton 301 is equipped with a first driving motor 11 installed in the storage cabin 9, the output shaft end of the first driving motor 11 is connected to a driving gear 12, and the upper side of the driving gear 12 is meshed with an arc-shaped toothed plate 13;

[0038] The flapping wing skeleton 301 includes a side fixed keel 3011, a plurality of middle movable keels 3012 and a side movable keel 3013, the side fixed keel 3011 is fixedly connected to the storage cabin 9, a rotating shaft 302 is provided on the storage cabin 9 at the rotation center of the middle movable keel 3012 and the side movable keel 3013, and the plurality of middle movable keels 3012 and the side movable keel 3013 are rotatably connected to the rotating shaft 302;

[0039] The arc tooth plate 13 is located at the lower side of the flapping wing skeleton 301, the side movable keel 3013 is fixedly connected to the upper side of one end of the arc tooth plate 13, a plurality of intermediate movable keels 3012 are arranged on the upper side of the arc tooth plate 13 and are located between the side fixed keel 3011 and the side movable keel 3013, an arc groove 14 is arranged on the upper side of the arc tooth plate 13, a sliding member 15 arranged in the arc groove 14 is arranged on the bottom side of the intermediate movable keel 3012, the soft flapping wing curtain 10 is correspondingly connected to the side fixed keel 3011, a plurality of intermediate movable keels 3012 and the side movable keel 3013, and the side movable keel 3013 is fixedly connected with a guide keel 303 that rotates around the rotating shaft 302 following the side movable keel 3013;

[0040] The main flapping wing 3 adopts a flapping wing left and right folding mode, that is, folding on both sides, such as Figure 3 As shown, the side folding mode of the main flapping wing 3 can reduce the occupied area when driving or parking on the ground.

[0041] like Figure 5As shown, an arc-shaped extending keel device is also provided on the bottom side of the main flapping wing, and the arc-shaped telescopic keel device includes a plurality of nested and connected arc-shaped telescopic rails 17, and the arc of each arc-shaped telescopic rail 17 is a concentric circular arc, and the center of the circle is the axis of the rotating shaft 302, and each arc-shaped telescopic rail 17 is provided with a keel connection point 21 which can slide on the arc-shaped telescopic rail 17 and is connected to the side fixed keel 3011, a plurality of middle movable keels 3012 and the side movable keel 3013, and one end of the outermost arc-shaped telescopic rail 17 of the arc-shaped telescopic keel device is fixedly connected to the storage cabin 9, and one end of the innermost arc-shaped telescopic rail 17 is connected to the guide keel 302.

[0042] like Figure 6 As shown, the tail 5 includes a tail installation box 501 connected to the fuselage 1, a second drive motor 16 and two sets of tail keels 502 hinged at the same point in the tail installation box 501 are installed in the tail installation box 501, an arc-shaped gear rail 503 is installed on the bottom side of the tail keel 502, and the bottom sides of the two arc-shaped gear rails 503 near the ends are meshed with a drive gear 504;

[0043] The output end of the second drive motor 16 is connected to a driving gear 12, wherein a driving gear 504 on the bottom side of one arc-shaped rack 503 is directly meshed with the driving gear 12 at the output end of the second drive motor 16, and a driving gear 504 on the bottom side of another arc-shaped rack 503 is connected to the driving gear 12 at the output end of the second drive motor 16 through a transmission gear 18. A soft flapping wing curtain 10 is installed on the tail keel 502, and the movement of the two arc-shaped racks 503 in opposite directions is controlled by the rotation of the second drive motor 16 to realize the retraction and extension of the tail wing, change the area size of the tail 5, and better meet the flight status requirements.

[0044] The fuselage 1 adopts a carbon fiber and titanium alloy fuselage structure with high strength and light weight.

[0045] The ground travel device 8 adopts a roller device, and a storage compartment for retracting and releasing the rollers of the ground travel device is provided on the bottom side of the fuselage. The rollers of the ground travel device are connected to the fuselage through a retracting mechanism.

[0046] The side rotor 6 is fixedly connected to the fuselage 1 or a rotor compartment 19 is provided on both sides of the fuselage 1 . The side rotor 6 is connected to the fuselage 1 through a rotating bracket 20 so that the side rotor 6 can be folded through the rotating bracket 20 and enter the rotor compartment 19 .

[0047] It also includes a power system, which adopts a pure electric drive mode. The main flapping wing 3, the tail wing 5, the side rotor 6, the rear rotor 7 and the ground driving device 8 are all electrically driven.

[0048] The multi-rotor system of the utility model combines the side rotor and the rear rotor to solve the take-off and landing processes. Specifically, in the short-distance take-off state, the first drive motor 11 of the folded main flapping wing 3 controls the movement of the arc-shaped gear plate 302 and thus controls the unfolding of the entire flapping wing. The side rotor 6 is rotated and released from the rotor compartment, and started to give the entire machine an upward trend. At the same time, the rear rotor 7 is rotated and extended, and started to give the entire machine a forward trend, thereby achieving a short-distance take-off and entering the flight mode. When landing, the side rotor 6 is rotated and released to achieve a short-distance landing. During normal flight, the side rotor 6 is retracted, and the rear rotor 7 can also be closed to enter the flapping-wing flight state.

[0049] When the utility model is implemented, the surface of the bird can be sprayed with colors, and the appearance of the bird is colorful when flying in the air.

[0050] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A pure electric short take-off and landing manned foldable soft flapping-wing aircraft, characterized in that: It includes a fuselage, a cockpit, two main flapping wings, two auxiliary flapping wings, a tail wing, two side rotors, two rear rotors and a ground driving device. The cockpit is arranged at the front top of the fuselage, the two main flapping wings are respectively arranged on both sides of the fuselage and located behind the cockpit, the two auxiliary flapping wings are respectively arranged on both sides of the fuselage and located at the lower side of the tail end of the main flapping wings, the tail wing is located at the tail of the fuselage, the two side rotors are respectively arranged on both sides of the fuselage and located below the main flapping wings, the two rear rotors are located at the tail of the fuselage and are respectively arranged on both sides of the tail wing, and the ground driving device is arranged on the lower side of the fuselage. The main flapping wings are foldable wings that can be folded and stored on both sides of the fuselage. A symmetrically arranged storage cabin is provided on the top side of the fuselage behind the cockpit. Each storage cabin is provided with a group of foldable wings. The foldable wings include a flapping wing frame that can be folded and opened. A soft flapping wing curtain is installed on the flapping wing frame. The soft flapping wing curtain can be folded or opened following the flapping wing frame. A power device is provided between the storage cabin and the fuselage to control the vibration of the foldable wings carried by the storage cabin.

2. A pure electric short take-off and landing manned foldable soft flapping-wing aircraft according to claim 1, characterized in that: The flapping wing frame is equipped with a first driving motor installed in the storage cabin, the output shaft end of the first driving motor is connected to a driving gear, and the upper side of the driving gear is meshed with an arc-shaped gear plate; The flapping wing skeleton includes a side fixed keel, a plurality of middle movable keels and a side movable keel, the side fixed keel is fixedly connected to the storage cabin, a rotating shaft is provided on the storage cabin at the rotation center of the middle movable keel and the side movable keel, and the plurality of middle movable keels and the side movable keel are rotatably connected to the rotating shaft; The arc-shaped tooth plate is located on the lower side of the flapping-wing frame, the side movable keel is fixedly connected to the upper side of one end of the arc-shaped tooth plate, a plurality of intermediate movable keels are arranged on the upper side of the arc-shaped tooth plate and are located between the side fixed keel and the side movable keel, an arc-shaped groove is provided on the upper side of the arc-shaped tooth plate, a sliding part is provided in the arc-shaped groove on the bottom side of the intermediate movable keel, and the soft flapping-wing curtain is correspondingly connected to the side fixed keels, a plurality of intermediate movable keels and the side movable keels.

3. A pure electric short take-off and landing manned foldable soft flapping-wing aircraft according to claim 2, characterized in that: The side movable keel is fixedly connected with a guide keel which rotates around a rotating shaft following the side movable keel.

4. The pure electric short take-off and landing manned foldable soft flapping-wing aircraft according to claim 1, characterized in that: The power device of the main flapping wing is provided by pure electricity and driven by hydraulic pressure and gear transmission using the lever principle to drive the flapping wing to move up and down.

5. The pure electric short take-off and landing manned foldable soft flapping-wing aircraft according to claim 3, characterized in that: An arc-shaped telescopic keel device is also provided on the bottom side of the main flapping wing, and the arc-shaped telescopic keel device includes a plurality of nested and connected arc-shaped telescopic rails, the arc of each arc-shaped telescopic rail is a concentric circular arc, and the center of the circle is the axis of the rotating shaft, and each arc-shaped telescopic rail is provided with a keel connection point that can slide on the arc-shaped telescopic rail and is connected to the side fixed keel, a plurality of middle movable keels and the side movable keel, one end of the outermost arc-shaped telescopic rail of the arc-shaped telescopic keel device is fixedly connected to the storage cabin, and one end of the innermost arc-shaped telescopic rail is connected to the guide keel.

6. The pure electric short take-off and landing manned foldable soft flapping-wing aircraft according to claim 1, characterized in that: The tail comprises a tail installation box connected to the fuselage, a second drive motor and two sets of tail keels hinged at the same point in the tail installation box are installed in the tail installation box, an arc-shaped gear track is installed on the bottom side of the tail keel, and the bottom sides of the two arc-shaped gear tracks near the ends are both meshed with drive gears; The output end of the second drive motor is connected to a driving gear, wherein the driving gear on the bottom side of one arc-shaped rack is directly meshed with the driving gear at the output end of the second drive motor, and the driving gear on the bottom side of the other arc-shaped rack is connected to the driving gear at the output end of the second drive motor via a transmission gear, and a soft flapping wing curtain is installed on the tail keel.

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