Miniaturized split type skateboard aircraft

Abstract

The miniaturized split-type skateboard aircraft provided by the utility model can be used for changing the vehicle form between an automobile and an aircraft and switching the flying state and the land running state, and has the advantages of low energy consumption, large voyage, high load and the like. Power is provided by the tilting multi-rotor wings and the ducted fan, so that vertical take-off and landing can be realized, and short-distance taxiing take-off and landing can also be realized under the boosting of the self-traveling chassis. Due to the design of the folding fixed wings, the horizontal tail and the telescopic tail wing, the vehicle can be reduced to the specified size of a road or a garage when running and parking on the land.

Description

Technical Field

[0001] The utility model belongs to the technical field of split-type aircraft and vehicle automatic driving, and specifically relates to a miniaturized split-type skateboard aircraft. Background Art

[0002] Currently, with the country's advocacy and promotion of the low-altitude economy, a number of smaller, advanced aircraft have rapidly emerged. Their methods of takeoff and landing and flight mainly include: vertical takeoff and landing using tiltrotors or ducted fans, traditional taxiing and landing using propellers and fixed wings, and a combination of tiltrotors / ducted fans and fixed wings. However, many existing technologies suffer from common shortcomings such as large size, high energy consumption, short range, and a single takeoff and landing method. Therefore, how to further develop flight solutions that combine the advantages of these various aircraft types while minimizing their disadvantages remains a difficult problem to be solved in this field. Summary of the Invention

[0003] In view of this, the present invention provides a miniaturized split skateboard aircraft, which is composed of a composite wing flight module and an autonomous driving chassis that can be combined or separated to operate independently;

[0004] Among them, foldable fixed wings are installed on both sides of the fuselage of the composite wing flight module, and side beams parallel to the fuselage are provided on the fixed wings, and vertically placed rotors are installed on the side beams; a vertical tail is provided at the rear end of each side beam, and the horizontal ends of a horizontal tail are respectively pivotally connected with the upper ends of the two vertical tails and can be disconnected, and the middle part of the front end of the horizontal tail is pivotally connected with the middle vertical tail at the tail of the aircraft; the horizontal tail is folded down when driving or parking on land, and unfolded during taxiing takeoff and landing or level flight, and can be selected to be unfolded or folded down as needed during vertical takeoff and landing; a pair of ducted fans are provided below the horizontal tail, respectively, on both sides of the tail, each ducted fan is pivotally connected to the inner side of the vertical tail on the same side, and the two ducted fans are coaxially pivotally connected with the middle vertical tail, which is used to provide lifting thrust during vertical takeoff and landing, and provide thrust or deceleration reverse thrust during taxiing takeoff and landing and level flight; a carrying cabin for carrying passengers or cargo is provided on the composite wing flight module;

[0005] The autonomous driving chassis serves as the take-off and landing platform for the composite wing flight module. It has an automatic driving function and can also fly automatically or under the control of a pilot when combined with the composite wing flight module. When the composite wing flight module takes off, the autonomous driving chassis drives its acceleration to obtain primary lift or auxiliary lift.

[0006] When the composite wing flight module is combined with the autonomous driving chassis and is driven or parked on land, the fixed wing and horizontal tail are folded, and the side beams can drive the left and right vertical tails and the horizontal tail to move forward and backward. At this time, the middle vertical tail can be extended and retracted forward and backward or disconnected from the horizontal tail.

[0007] Furthermore, the carrier cabin is a separate module that can be combined or separated with the composite wing flight module or the autonomous driving chassis; when the carrier cabin is separated from the composite wing flight module, the composite wing flight module can fly and take off and land autonomously; when the carrier cabin is combined with the autonomous driving chassis, it can be used as a vehicle for automatic driving or travel under driver operation; in the passenger transport scenario, the cabin door can be optionally set on the side of the carrier cabin; in the cargo transport scenario, the cabin door can be optionally set at the front or rear bottom of the carrier cabin.

[0008] Furthermore, each ducted turbofan can be independently tilted in the pitch direction to improve the maneuverability of the composite wing flight module during flight.

[0009] Furthermore, the fixed wing includes a central wing and outer wings from the fuselage to the far end, as well as wingtip ailerons that are optionally installed according to lift index requirements; side beams are set at the connection between the central wing and the outer wing; the outer wing is provided with flaps and ailerons, or a simplified form that only includes ailerons.

[0010] Furthermore, elastic buffering and energy-absorbing materials are provided on the autonomous driving chassis to reduce the impact of the composite wing flight module during takeoff and landing.

[0011] Furthermore, a precision positioning pin is provided under the composite wing flight module or the carrying cabin, a corresponding precision positioning pin hole is provided on the autonomous driving chassis, and a coarse positioning guide block for positioning the nose of the composite wing flight module is provided on the autonomous driving chassis. The positioning of the composite wing flight module and the autonomous driving chassis when combined is achieved through mutual cooperation.

[0012] Furthermore, the composite wing flight module is also provided with a landing gear for the composite wing flight module to take off and land or make an emergency landing on land or water. A retractable hidden landing gear or an external landing gear can be selected according to actual needs.

[0013] Furthermore, a structure in which the intermediate vertical tail and the horizontal tail are independent and not connected to each other is adopted, replacing the pivotable connection between the two, so as to realize the function of the horizontal tail being able to move telescopically along with the vertical tail.

[0014] Furthermore, each side beam is provided with a pair of tiltable rotors with locking mechanisms or non-tiltable coaxial reverse propeller rotors, which are symmetrically distributed on the front and rear sides of the fixed wing; the front end of the side beam can be optionally equipped with a pair of tiltable propellers as needed.

[0015] The miniaturized, split skateboard aircraft provided by the present invention can transform between a car and an aircraft, switching between flight and land travel. It boasts low energy consumption, ultimately achieving advantages such as a long range and high payload. Powered by tilting multi-rotors and a ducted fan, the aircraft can achieve both vertical takeoff and landing (VTOL) and short-distance taxiing and landing with the assistance of an autonomous chassis. The folding fixed wings, horizontal tail, and retractable tail design allow the vehicle to be reduced to the size required for roads or garages when traveling and parking on land. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the land driving or parking mode of the skateboard aircraft provided by the utility model;

[0017] Figure 2 A schematic diagram of the vertical take-off and landing mode of the skateboard aircraft provided by the present invention;

[0018] Figure 3 This is a schematic diagram of the level flight mode of the skateboard aircraft provided by the utility model;

[0019] Figure 4 This is a schematic diagram of the taxiing take-off and landing mode of the skateboard aircraft provided by the present invention;

[0020] Figure 5 A schematic diagram of the optional positioning combination structure of the composite wing flight module and the autonomous driving chassis;

[0021] Figure 6 The schematic diagram of the method for realizing landing guidance and coarse and fine positioning by using the positioning combination structure;

[0022] Figure 7 A preferred embodiment of providing a tiltable propeller at the front end of the side beam;

[0023] Figure 8 An alternative embodiment with independently retractable vertical and horizontal tails DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] The miniaturized split skateboard aircraft provided by the utility model is as follows Figure 1-4 As shown, it consists of a composite wing flight module 1 and an autonomous driving chassis 2 that can be combined with each other or separated to operate independently;

[0028] Among them, foldable fixed wings 3 are installed on both sides of the fuselage of the composite wing flight module 1, and side beams 4 parallel to the fuselage are set on the fixed wings 3, and vertically placed rotors are installed on the side beams; a vertical tail 6 is set at the rear end of each side beam 4, and the horizontal ends of a horizontal tail 7 are pivotally connected with the upper ends of the two vertical tails 6 respectively, and the middle part of the front end of the horizontal tail 7 is pivotally connected with the middle vertical tail 8 at the tail of the aircraft; the horizontal tail 7 is folded down when driving or parking on land, and unfolded during taxiing takeoff and landing or level flight. During vertical takeoff and landing, the horizontal tail 7 can be selected to be unfolded or folded down according to needs.

[0029] This high horizontal tail + three vertical tail configuration is more conducive to increasing range than other layouts, and also provides greater redundancy and flexibility in the design of the wings and payload compartment. At the same time, the three vertical tail layout can achieve a better balance between tail strength and weight than the existing technology using a double tail strut.

[0030] A pair of ducted fans 9 are provided below the horizontal stabilizer 7, one on each side of the tail. Each ducted fan 9 is pivotally connected to the inner side of the vertical stabilizer 6 on the same side. The two ducted fans 9 are pivotally connected coaxially with the middle vertical stabilizer 8 to provide lift thrust during vertical takeoff and landing, as well as thrust or deceleration reverse thrust during taxiing, takeoff and landing, and level flight. A carrying compartment for carrying passengers or cargo is provided on the composite wing flight module 1.

[0031] The autonomous driving chassis 2 serves as the take-off and landing platform of the composite wing flight module 1. It has an automatic driving function and can also drive automatically or under the control of the driver when combined with the composite wing flight module 1. When the composite wing flight module 1 takes off, the autonomous driving chassis 2 drives its acceleration to obtain auxiliary lift. Through this design, the vehicle of the present invention can freely choose different take-off methods according to actual needs. For example, it can perform taxiing take-off and landing on open roads and suburban environments to save energy, and perform vertical take-off and landing on congested urban roads, so there is no need to carry out too much modification of existing roads. For special environments such as plateaus with thin air that are not conducive to vertical take-off, the autonomous driving chassis can also play a boosting role in the vertical take-off process, thereby greatly enriching the environments and scenes applicable to the present invention.

[0032] When the composite wing flight module 1 is combined with the autonomous driving chassis 2 and is traveling or parked on land, the fixed wings 3 and the horizontal tail 6 are folded, and the side beams can drive the left and right vertical tails and the horizontal tail to move forward and backward. At this time, the middle vertical tail can be extended and retracted forward and backward or disconnected from the horizontal tail so that the outer periphery of the composite wing flight module 1 does not exceed the outer periphery of the autonomous driving chassis 2 in the horizontal direction, and meets the road height limit requirements during driving, and can play a role in adjusting the balancing torque during flight.

[0033] In a preferred embodiment of the present invention, the carrying cabin is a separate module (not shown in the figure) that can be combined or separated with the composite wing flight module or the autonomous driving chassis; when the carrying cabin is separated from the composite wing flight module, the composite wing flight module can fly and take off and land autonomously; when the carrying cabin is combined with the autonomous driving chassis, it can be used as a vehicle for automatic driving or for driving under the control of a driver; in a passenger transport scenario, the cabin door can be set on the side of the carrying cabin; in a cargo transport scenario, the cabin door can be set at the front or rear bottom of the carrying cabin. It is worth noting that the high horizontal tail + three vertical tail layout of the present invention is the optimal choice that comprehensively considers the design requirements of the independent carrying cabin, flight power layout, and the folded size of the composite wing flight module. In some existing technologies that adopt a low horizontal tail layout, it is obviously impossible to realize the above-mentioned multiple carrying cabin doors and passenger and cargo function designs, and the folded size and flight range cannot meet the same indicators as the present invention.

[0034] In a preferred embodiment of the present invention, each ducted turbofan 9 can be independently tilted in the pitch direction to improve the maneuverability of the composite wing flight module 1 during flight.

[0035] In a preferred embodiment of the present invention, the fixed wing includes a central wing and an outer wing in sequence from the fuselage to the far end, as well as winglets that are optionally installed according to lift index requirements. They can be omitted when the lift requirements are not high and take-off and landing can be achieved using only the central wing and the outer wing; the side beams are arranged at the connection between the central wing and the outer wing; the outer wing is provided with flaps and ailerons, or a simplified form that only includes ailerons.

[0036] In a preferred embodiment of the present invention, a pair of tiltable rotors with a locking mechanism or non-tiltable coaxial reverse propeller rotors are provided on each side beam 4, which are symmetrically distributed on the front and rear sides of the fixed wing 3 to achieve better power redundancy. When a coaxial reverse propeller structure is adopted, greater thrust can be provided. A pair of tiltable propellers can be optionally added to the front end of the side beam as needed, such as Figure 7 As shown, when taking off vertically, the upward thrust can be increased, and when flying level, the aircraft turns to the horizontal direction to increase the horizontal thrust.

[0037] In a preferred embodiment of the present invention, elastic buffering and energy-absorbing materials are provided on the autonomous driving chassis 2 to reduce the impact of the composite wing flight module 1 during takeoff and landing.

[0038] In a preferred embodiment of the present invention, Figure 5 As shown, a precision positioning pin is provided under the composite wing flight module or the carrying cabin, and a corresponding precision positioning pin hole and a coarse positioning guide block for positioning the composite wing flight module are provided on the autonomous driving chassis. The positioning of the composite wing flight module and the autonomous driving chassis are achieved through mutual cooperation.

[0039] In a preferred embodiment of the present invention, the composite wing flight module 1 is also provided with a landing gear, and a retractable hidden landing gear or an external landing gear can be selected according to actual needs. The setting of the landing gear can further enable the present invention to be used as a cross-medium transportation tool that is amphibious on land, water and air, and can also expand its application scenarios. For example, in certain disaster areas where land driving conditions are not available, the composite wing flight module is required to use the landing gear to take off and land on its own; when performing rescue missions to rescue people who fall into the water, the composite wing flight module can be equipped with water landing gear to complete take-off and landing on the water. In addition, the setting of the fixed wing and the landing gear also provides the possibility of emergency landing in the event of a fault such as engine shutdown in the air, which significantly increases the safety and survival rate of people and property on board compared to multi-rotor aircraft.

[0040] In a preferred embodiment of the present invention, the Figure 8 The structure shown in the figure is that the intermediate vertical tail and the horizontal tail are separated and not connected to each other, instead of a pivotable connection between the two, so as to realize the telescopic movement of the horizontal tail following the vertical tail.

[0041] In a preferred embodiment of the present invention, a pair of vertically placed rotors 5 are installed at the front and rear of the side beams 4, and a pair of tiltable propellers can be optionally added to the front end of the side beams as needed. Figure 7 shown.

[0042] It should be understood that the size of the serial numbers of the steps in the embodiments of the present invention does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A miniaturized split skateboard aircraft, characterized by: It consists of composite wing flight modules and an autonomous driving chassis that can be combined with each other or separated to operate independently; Among them, the composite wing flight module is provided with foldable fixed wings on both sides of the fuselage, and side beams parallel to the fuselage are provided on the fixed wings, and vertically placed rotors are installed on the side beams; a vertical tail is provided at the rear end of each side beam, and the horizontal ends of a horizontal tail are pivotally connected to the upper ends of the two vertical tails respectively, and the middle part of the front end of the horizontal tail is pivotally connected to the middle vertical tail at the tail of the aircraft and can be disconnected; the middle vertical tail can be telescopically moved forward and backward; the horizontal tail is folded down when driving or parking on land, and unfolded during taxiing takeoff and landing or level flight, and can be unfolded or folded down according to needs during vertical takeoff and landing; a pair of ducted fans are provided below the horizontal tail, respectively, on both sides of the tail, each ducted fan is pivotally connected to the inner side of the vertical tail on the same side, and the two ducted fans are coaxially pivotally connected to the middle vertical tail, which is used to provide lifting thrust during vertical takeoff and landing, and provide thrust or deceleration reverse thrust during taxiing takeoff and landing and level flight; a carrying cabin for carrying passengers or cargo is provided on the composite wing flight module; The autonomous chassis serves as the take-off and landing platform for the composite wing flight module. It has an automatic driving function and can also fly automatically or under the control of a pilot when combined with the composite wing flight module. When the composite wing flight module takes off, the autonomous chassis drives it to accelerate to obtain primary lift or auxiliary lift. When the composite wing flight module is combined with the autonomous driving chassis and is driven or parked on land, the fixed wing and horizontal tail are folded, and the side beams can drive the left and right vertical tails and the horizontal tail to move forward and backward. At this time, the middle vertical tail can be extended and retracted forward and backward or disconnected from the horizontal tail.

2. The miniaturized split skateboard aircraft according to claim 1, characterized in that: The carrying cabin is a separate module that can be combined or separated with the composite wing flight module or the autonomous driving chassis; when the carrying cabin is separated from the composite wing flight module, the composite wing flight module can fly and take off and land autonomously; when the carrying cabin is combined with the autonomous driving chassis, it can act as a vehicle and perform automatic driving or travel under the operation of a driver.

3. The miniaturized split skateboard aircraft according to claim 1, characterized in that: Each ducted turbofan can be tilted in the pitch direction independently to improve the maneuverability of the composite wing flight module during flight.

4. The miniaturized split skateboard aircraft according to claim 1, wherein: The fixed wing includes a central wing and outer wings from the fuselage to the far end, as well as winglets that are optional according to lift index requirements; side beams are set at the connection between the central wing and the outer wing; the outer wing is equipped with flaps and ailerons, or a simplified form that only includes ailerons.

5. The miniaturized split skateboard aircraft according to claim 1, characterized in that: The autonomous driving chassis is equipped with elastic buffer energy-absorbing materials to reduce the impact of the composite wing flight module during takeoff and landing.

6. The miniaturized split skateboard aircraft according to claim 1, characterized in that: Precision positioning pins are provided under the composite wing flight module or the carrying cabin, and corresponding precision positioning pin holes and coarse positioning guide blocks for positioning the composite wing flight module are provided on the autonomous driving chassis. The positioning of the composite wing flight module and the autonomous driving chassis is achieved through mutual cooperation.

7. The miniaturized split skateboard aircraft according to claim 1, characterized in that: The composite wing flight module is also provided with a landing gear for the composite wing flight module to take off and land on its own or make an emergency landing on land or water.

8. The miniaturized split skateboard aircraft according to claim 1, characterized in that: The intermediate vertical tail and the horizontal tail are independent and not connected to each other, replacing the pivotal connection between the two, so as to realize the telescopic movement of the horizontal tail following the vertical tail.

9. The miniaturized split skateboard aircraft according to claim 1, characterized in that: Each side beam is equipped with a pair of tiltable rotors with locking mechanisms or non-tiltable coaxial reverse propeller rotors, which are symmetrically distributed on the front and rear sides of the fixed wing; the front end of the side beam can be optionally equipped with a pair of tiltable propellers as needed.

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