A sea-land-air multi-medium multi-purpose flying car

By introducing an inflatable ducted fan airbag and a tilting mechanism into the flying car, combined with a mode conversion support device, the problem of insufficient adaptability of existing flying cars in water has been solved, realizing amphibious capability across land, sea, and air, and improving operational efficiency and structural compactness.

CN224545631UActive Publication Date: 2026-07-24NANJING AEROSPACE GUOQI INTELLIGENT EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING AEROSPACE GUOQI INTELLIGENT EQUIP CO LTD
Filing Date
2025-09-04
Publication Date
2026-07-24

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Abstract

The utility model relates to air car technical field discloses a sea land air multi -medium multipurpose air car, including car body, tyre, modal conversion support device and unfolding tilting mechanism, the tyre includes tyre hub, tyre shape, tyre outside wall surface and tyre inside wall surface, the tyre outside wall surface is attached to the duct fan lip section inflatable air bag, the tyre inside wall surface is attached to the duct fan diffusion section inflatable air bag, the tyre hub is equipped with the rotor component, the modal conversion support device sets up in the car body bottom for supporting up the car body when modal conversion, the scheme has the characteristics of multipurpose, multi -medium, has expanded the application scene of traffic tool obviously, through the inflatable air bag design, tyre can be changed into the duct fan of high aerodynamic efficiency to improve the aerodynamic performance of air car under the flight state, simultaneously, the air bag also provides the buoyancy required in water, gives the ability of air car navigation in water.
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Description

Technical Field

[0001] This utility model relates to the field of flying car technology, specifically a multi-media, multi-purpose flying car for land, sea, and air. Background Technology

[0002] Flying cars, as an important development direction for future urban transportation and special operations, have received widespread attention in recent years. Their core objective is to integrate airborne and ground-based driving capabilities to achieve rapid and flexible movement within three-dimensional space. Existing flying car designs are mostly based on fixed-wing, rotor, or hybrid configurations, and have addressed the fundamental issues of vertical takeoff and landing and ground-based driving to some extent. However, these designs still have significant limitations: most designs focus only on amphibious use, lacking adaptability to aquatic environments and failing to achieve true land, sea, and air amphibious capability; the power systems used to provide lift (such as rotors or ducted engines) often become sources of air resistance or structural burdens in car mode, and their aerodynamic efficiency is usually not fully optimized; furthermore, mode transitions often rely on complex mechanical mechanisms or additional lift devices, leading to complex overall structures, increased weight, reduced reliability, and encroachment on valuable payload space.

[0003] In particular, the design that uses tires as ducted fans simplifies the structure to some extent, but its aerodynamic shape is far from optimal, resulting in low flight efficiency. At the same time, such designs generally do not consider buoyancy and propulsion in water, and require external assistance or additional lift devices during mode transitions, limiting their application scenarios and practicality.

[0004] Therefore, there is an urgent need for an innovative integrated design that can efficiently integrate the drive and support systems of land, sea, and air modes, achieve smooth and autonomous mode switching, and significantly improve operating efficiency in various media. Utility Model Content

[0005] The purpose of this invention is to provide a multi-medium, multi-purpose flying car for land, sea, and air, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-media, multi-purpose flying car technology solution for land, sea, and air includes a vehicle body, tires, a mode conversion support device, and a deployment and tilting mechanism;

[0008] The tire includes a tire rim, tire shape, tire outer sidewall, and tire inner sidewall;

[0009] The outer sidewall of the tire is fitted with an airbag for the ducted fan lip section.

[0010] The inner sidewall of the tire is fitted with an airbag for the diffuser section of the ducted fan.

[0011] The tire hub is equipped with a rotor component;

[0012] The modal conversion support device is located at the bottom of the vehicle body and is used to support the vehicle body during modal conversion;

[0013] The unfolding and tilting mechanism is used to drive the tires to unfold horizontally and tilt forward and backward.

[0014] As a preferred technical solution, the unfolding tilting mechanism includes a drive motor, a motor support plate, a lead screw mounting plate, a lead screw, a rocker arm, a slider, a fixed plate, a bearing, a servo motor, a servo motor gear, and a tilting gear;

[0015] The drive motor is fixed to the motor support plate, and its output end drives the rotor component to rotate through the rotor drive shaft and the hub drive shaft.

[0016] The motor support plate is connected to the slider, and the slider is engaged with the lead screw. It is driven by the drive motor to slide, and then the rocker arm drives the tire to unfold horizontally.

[0017] The tilting gear is mounted on the fixed plate via bearings and is driven to rotate by a servo motor via a servo motor gear, thereby achieving the overall tilting of the tire.

[0018] As a preferred technical solution, the rotor drive shaft is a hollow shaft, which is sleeved on the outside of the solid hub drive shaft. The two shafts can rotate independently or in concert, respectively driving the rotor component and the tire.

[0019] As a preferred technical solution, the ducted fan lip section inflation airbag and the ducted fan diffuser section inflation airbag are made of flexible high-strength materials. After inflation, they form the efficient aerodynamic shape of the ducted fan, and after vacuuming, they can be attached to the tire wall.

[0020] As a preferred technical solution, the mode conversion support device is a retractable outrigger structure that extends when converting from vehicle mode to flight or water mode, supporting the vehicle body and providing space for tire deployment and tilting.

[0021] As a preferred technical solution, when the tires are adjusted to a horizontal state by the unfolding tilting mechanism and the airbags are inflated, they form a highly efficient ducted fan to provide lift for flight; when the tires are tilted 90 degrees to a completely horizontal state, the inflated airbags provide buoyancy and the rotor components provide thrust, enabling the vehicle to navigate on water.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This invention relates to a multi-medium, multi-purpose flying car suitable for land, sea, and air. This solution possesses multi-purpose and multi-medium characteristics, significantly expanding the application scenarios of transportation vehicles. Through an inflatable airbag design, the tires can be transformed into high-efficiency ducted fans, thereby improving the aerodynamic performance of the flying car in flight. Simultaneously, the airbags provide the necessary buoyancy in water, enabling the flying car to navigate underwater. The application of a vehicle mode conversion support device eliminates the need for an additional lift device when the car transitions to flight mode, effectively saving redundant mechanisms, improving the space utilization of the flying car, and making its structure more compact.

[0024] Furthermore, the tilt mechanism enables the ducted fan to deploy horizontally and tilt forward / backward. Horizontal deployment ensures smooth mode transitions for the flying car, while small-angle tilting significantly enhances maneuverability and flexibility in flight. When the tilt angle reaches 90 degrees, the ducted fan can act as a water propulsion system, further enabling underwater navigation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the vehicle support structure for a multi-media, multi-purpose flying car that can be used on land, sea, and air.

[0026] Figure 2 A schematic diagram of the ducted deployment structure of a multi-medium, multi-purpose flying car for land, sea, and air;

[0027] Figure 3 A schematic diagram of the bottom structure of the adjustment mechanism of a multi-media, multi-purpose flying car for land, sea, and air.

[0028] Figure 4 A schematic diagram of the axle side structure of the adjustment mechanism of a multi-media, multi-purpose flying car for sea, land, and air use;

[0029] Figure 5 This is a schematic diagram illustrating the state switching of a multi-media, multi-purpose flying car that operates across land, sea, and air.

[0030] In the attached diagram, the following are the reference numerals: 1. Vehicle body; 2. Outer sidewall of tire; 3. Inner sidewall of tire; 4. Inflatable airbag for ducted fan lip section; 5. Inflatable airbag for ducted fan diffuser section; 6. Tire outline; 7. Automotive mode conversion support device; 10. Tire hub; 11. Rotor component; 12. Rotor drive shaft; 13. Hub drive shaft; 14. Drive motor; 15. Motor support plate; 16. Lead screw mounting plate; 17. Lead screw; 18. Rocker arm; 19. Slider; 20. Fixing plate; 21. Bearing; 22. Servo; 23. Servo gear; 24. Tilting gear. Detailed Implementation

[0031] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this utility model provides a multi-media, multi-purpose flying car technical solution for land, sea, and air use: it includes a vehicle body 1, tires, a mode conversion support device 7, and a deployment and tilting mechanism. The mode conversion support device 7, which is a retractable outrigger structure, is located at the bottom of the vehicle body 1. In vehicle mode, the mode conversion support device 7 is in a retracted state, not affecting the vehicle's normal ground driving. When it is necessary to switch from vehicle mode to flight or water mode, the mode conversion support device 7 extends, supporting the vehicle body 1 and providing the necessary space for tire deployment and tilting.

[0033] Tire components, such as Figure 2 As shown, the system includes a tire rim 10, a tire profile 6, a tire outer sidewall 2, and a tire inner sidewall 3. A ducted fan lip section inflatable airbag 4 is attached to the tire outer sidewall 2, and a ducted fan diffuser section inflatable airbag 5 is attached to the tire inner sidewall 3. These two airbags are made of flexible, high-strength material and, when not inflated, can adhere to the tire sidewall without occupying extra space. When flight or water navigation is required, the airbags inflate, forming a highly efficient ducted fan aerodynamic profile to provide lift for flight or buoyancy in water.

[0034] To achieve horizontal deployment and forward / backward tilting of the tire, this utility model incorporates a deployment and tilting mechanism. For example... Figure 3 and Figure 4 As shown, the unfolding and tilting mechanism includes a drive motor 14, a motor support plate 15, a lead screw mounting plate 16, a lead screw 17, a rocker arm 18, a slider 19, a fixed plate 20, a bearing 21, a servo motor 22, a servo gear 23, and a tilting gear 24. The drive motor 14 is fixed to the motor support plate 15, and its output drives the rotor component 11 and the tire to rotate via the rotor drive shaft 12 and the hub drive shaft 13, respectively. The motor support plate 15 is connected to the slider 19, which slides on the lead screw 17 and is driven by the drive motor 14 to achieve horizontal tire unfolding. The tilting gear 24 is mounted on the fixed plate 20 via the bearing 21 and is driven to rotate by the servo motor 22 via the servo gear 23, achieving overall tire tilting.

[0035] The rotor drive shaft 12 is a hollow shaft, fitted onto the outside of the solid hub drive shaft 13. The two shafts can rotate independently or in tandem. This design allows the rotor component 11 and the tires to work separately or simultaneously, meeting the power requirements of different modes.

[0036] When the tires are adjusted to a horizontal position by the tilting mechanism and the airbags are inflated, they form a highly efficient ducted fan, providing lift for flight. When the tires are tilted 90 degrees to a completely horizontal position, the inflated airbags provide buoyancy, and the rotor component 11 provides thrust, enabling the vehicle to navigate on water. This design allows the flying car of this invention to switch freely between land, sea, and air, achieving multi-purpose and multi-medium characteristics.

[0037] Figure 5 The diagram illustrates the state switching of the flying car of this invention. As can be seen from the diagram, through the extension and retraction of the mode conversion support device 7, the deployment and tilting of the tires, and the inflation and deflation of the airbags, the flying car of this invention can smoothly switch from car mode to flight mode and then to water mode.

[0038] The process of transitioning from vehicle mode to flight / water mode is as follows: The vehicle stops moving, the vehicle mode transition support device 7 is opened, and the vehicle body is lifted up (B in the figure); next, the tires are unfolded 90 degrees until the tires are in a horizontal state under the drive of the unfolding tilting mechanism (C in the figure); then, the airbags attached to the upper and lower walls of the tires are inflated to form the duct lip section and diffuser section of the ducted fan (D in the figure); finally, the ducted fan tilts and transitions to flight mode (E in the figure) or water mode (F in the figure) under the drive of the unfolding tilting mechanism.

[0039] This utility model of a multi-medium, multi-purpose flying car for land, sea, and air, through innovative integrated design, efficiently integrates the drive and support systems for land, sea, and air modes, achieving smooth and autonomous mode switching and significantly improving operating efficiency in various media.

[0040] The working principle and usage process of this utility model: After assembling the various components of this solution in sequence, work according to the above implementation methods according to actual needs to complete all working steps.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0042] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A multi-media, multi-purpose flying vehicle for sea, land, and air, characterized in that, Includes the vehicle body (1), tires, modal conversion support device (7), and unfolding tilting mechanism; The tire includes a tire rim (10), a tire outline (6), a tire outer sidewall (2), and a tire inner sidewall (3); The outer sidewall (2) of the tire is attached with an airbag (4) for the duct fan lip section; The inner sidewall (3) of the tire is attached with an airbag (5) for the diffuser section of the duct fan; The tire hub (10) is provided with a rotor component (11); The modal conversion support device (7) is located at the bottom of the vehicle body (1) and is used to support the vehicle body during modal conversion; The unfolding and tilting mechanism is used to drive the tires to unfold horizontally and tilt forward and backward.

2. The multi-media, multi-purpose flying vehicle according to claim 1, characterized in that: The unfolding tilting mechanism includes a drive motor (14), a motor support plate (15), a lead screw mounting plate (16), a lead screw (17), a rocker arm (18), a slider (19), a fixing plate (20), a bearing (21), a servo motor (22), a servo motor gear (23), and a tilting gear (24); The drive motor (14) is fixed on the motor support plate (15), and its output end drives the rotor component (11) to rotate through the rotor drive shaft (12) and the hub drive shaft (13); The motor support plate (15) is connected to the slider (19), and the slider (19) cooperates with the lead screw (17). It is driven by the drive motor (14) to slide, and then the tire is horizontally unfolded by the rocker arm (18). The tilting gear (24) is mounted on the fixed plate (20) via the bearing (21) and is driven to rotate by the servo motor (22) via the servo gear (23) to achieve the overall tilting of the tire.

3. The multi-medium, multi-purpose flying vehicle for land, sea, and air as described in claim 2, characterized in that: The rotor drive shaft (12) is a hollow shaft, which is sleeved on the outside of the solid hub drive shaft (13). The two shafts can rotate independently or in concert, respectively driving the rotor component (11) and the tires.

4. The multi-medium, multi-purpose flying vehicle for land, sea, and air as described in claim 1, characterized in that: The ducted fan lip section inflation airbag (4) and the ducted fan diffuser section inflation airbag (5) are made of flexible high-strength materials. After inflation, they form the efficient aerodynamic shape of the ducted fan. After vacuuming, they can be attached to the tire wall.

5. The multi-media, multi-purpose flying vehicle according to claim 1, characterized in that: The mode conversion support device (7) is a retractable outrigger structure that extends when converting from car mode to flight or water mode, supporting the vehicle body (1) and providing space for tire deployment and tilting.

6. The multi-media, multi-purpose flying vehicle according to claim 1, characterized in that: When the tires are adjusted to a horizontal position by the tilting mechanism and the airbags are inflated, they form a high-efficiency ducted fan to provide lift for flight; when the tires are tilted 90 degrees to a completely horizontal position, the inflated airbags provide buoyancy and the rotor components (11) provide thrust, enabling the vehicle to navigate on water.