Foldable duct and hovercar

Abstract

The foldable duct is installed on the hovercar and comprises two duct bodies, two short cabin doors, a lengthened cabin door and a driving device, the driving device is in driving connection with the lengthened cabin door, the two ends of the lengthened cabin door are correspondingly and rotationally connected with one ends of the two short cabin doors respectively, and the two ends of the lengthened cabin door are rotationally connected with the other ends of the two short cabin doors respectively. The other ends of the two short cabin doors are correspondingly and rotationally connected with the outer walls of the two duct bodies respectively; the driving device is used for driving the lengthened cabin door to move up and down so as to drive the two duct bodies to be unfolded out of a car body of the hovercar or stored in the car body of the hovercar. According to the foldable duct provided by the invention, through the linkage arrangement of the duct bodies, the short cabin doors and the lengthened cabin doors, the two duct bodies can be folded and stored in the vehicle body when the hovercar is in a ground running state, and the size of the hovercar is effectively controlled, so that the aerodynamic resistance is not increased when the hovercar runs on the ground, and the storage is more convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flying cars, in particular to a foldable duct and a flying car. BACKGROUND

[0002] Compared with the existing fixed-wing flying car structure, the ducted fan flying car can take off vertically, so the requirement for take-off site is lower, and it can better adapt to various complex situations. Compared with the rotor flying car, the ducted fan is more compact in structure, produces less impact noise in working state, is safer, and is more suitable for use in cities.

[0003] At present, although flying cars have begun to develop towards ducted flying cars, technical problems still exist, for example, the existing ducted flying cars have the problem of too large volume occupied by the duct, which increases the aerodynamic resistance when driving on the ground and is not convenient to store. SUMMARY

[0004] The first object of the present application is to provide a foldable duct that can solve the problem of too large volume occupied by the duct of the existing ducted flying car.

[0005] The second object of the present application is to provide a flying car.

[0006] The present application provides a foldable duct installed on a flying car, comprising two duct bodies, two short nacelles, an elongated nacelle and a driving device, the two duct bodies are symmetrically arranged, and the two short nacelles are symmetrically arranged; the driving device is drivingly connected with the elongated nacelle, the two ends of the elongated nacelle are respectively rotationally connected with one end of the two short nacelles, and the other end of the two short nacelles is respectively rotationally connected with the outer wall of the two duct bodies; the driving device is used to drive the elongated nacelle to move up and down to drive the two duct bodies to unfold outside the vehicle body of the flying car or to be stored in the vehicle body of the flying car.

[0007] According to the foldable duct provided by the present application, when the driving device drives the elongated nacelle to move upwards, the two short nacelles swing outward respectively to drive the two duct bodies to unfold outward respectively until the two short nacelles extend to the left and right sides of the elongated nacelle, so that a smooth closed surface is formed between the two short nacelles and the elongated nacelle.

[0008] According to the foldable duct provided by the present application, when the driving device drives the elongated nacelle to move downwards, the two short nacelles swing inward respectively to drive the two duct bodies to be stored inward respectively until the two short nacelles are folded above the elongated nacelle.

[0009] The foldable duct provided by the application, the driving device comprises a central driving rod and a driving mechanism drivingly connected with the upper end of the central driving rod, and the lower end of the central driving rod is fixedly connected with the central position of the lengthened hatch.

[0010] The foldable duct provided by the application further comprises two symmetrically arranged limiting rods, one end of each of the two limiting rods is fixedly connected with the outer wall of each of the two duct bodies, and the other end of each of the two limiting rods is connected with the vehicle body of the flying vehicle through a connecting shaft; when the duct body is unfolded or stored, the limiting rod swings around the connecting shaft as the center.

[0011] The application further provides a flying vehicle comprising the foldable duct, and a duct fan is arranged in each of the duct bodies.

[0012] The flying vehicle provided by the application further comprises a tilting mechanism for controlling the mode conversion of the duct fan between the horizontal state and the vertical state.

[0013] When the flying vehicle is in the ground driving state, the two duct bodies are respectively in the folded state and are stored in the vehicle body.

[0014] When the flying vehicle is converted from the ground driving state to the flying state, the two duct bodies are unfolded from the vehicle body to the left and right sides outside the vehicle body, and at the same time, the duct fan is converted from the horizontal state to the vertical state to provide the maximum lift.

[0015] When the flying vehicle takes off and stabilizes, the duct fan is gradually converted from the vertical state to the horizontal state to provide the maximum forward thrust.

[0016] The foldable duct provided by the application, the driving device and the lengthened hatch are drivingly connected, one end of each of the two short hatches is rotatably connected with the two ends of the lengthened hatch, and the other end of each of the two short hatches is rotatably connected with the outer wall of each of the two duct bodies; wherein the driving device is used to drive the lengthened hatch to move up and down, so as to drive the two duct bodies to unfold outside the vehicle body of the flying vehicle or to be stored in the vehicle body of the flying vehicle. Therefore, the foldable duct provided by the application can fold and store the left and right two duct bodies in the vehicle body when the flying vehicle is in the ground driving state, effectively control the volume of the flying vehicle, so that the aerodynamic resistance is not increased when driving on the ground, and the storage is more convenient. When the flying vehicle needs to be converted from the ground driving state to the flying state or to be stably flown, the left and right two duct bodies are unfolded to the two sides outside the vehicle body, respectively, for providing power for the flying vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0017] The technical solutions in the embodiments of the present application or the prior art will be clearly and completely described below with reference to the accompanying drawings needed in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative work based on these drawings also belong to the protection scope of the present application.

[0018] Fig. 1 Structure schematic diagram of the foldable duct of the present application;

[0019] Fig. 2 Storage state schematic diagram of the foldable duct of the present application;

[0020] Fig. 3 Unfolding state schematic diagram of the foldable duct of the present application.

[0021] Explanation of reference signs:

[0022] 1, duct body; 2, short nacelle door; 3, lengthened nacelle door; 4, vehicle body; 5, center driving rod; 6, limiting rod. EMBODIMENT

[0023] The technical solutions of the present application will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present application.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an implied order of sequence. Thus, features defined with "first", "second" or "third" can include one or more of the features implicitly or explicitly. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] As shown in Figs. 1 to 3 The foldable duct of the embodiment of the present application is mounted on the flying car and comprises two duct bodies 1, two short nacelle doors 2, an elongated nacelle door 3 and a driving device. The two duct bodies 1 are symmetrically arranged, and the two short nacelle doors 2 are symmetrically arranged. The driving device is drivingly connected with the elongated nacelle door 3, one end of each of the two short nacelle doors 2 is rotationally connected with a corresponding end of the elongated nacelle door 3, and the other end of each of the two short nacelle doors 2 is rotationally connected with a corresponding outer wall of each of the two duct bodies 1. The driving device is used to drive the elongated nacelle door 3 to move up and down, so as to drive the two duct bodies 1 to be unfolded outside the vehicle body 4 of the flying car or to be stored in the vehicle body 4 of the flying car.

[0027] Specifically, when the driving device drives the elongated nacelle door 3 to move upward, the two short nacelle doors 2 swing outward respectively, so as to drive the two duct bodies 1 to unfold outward respectively, until the two short nacelle doors 2 extend to the left and right sides of the elongated nacelle door 3 respectively, so that a smooth closed surface is formed between the two short nacelle doors 2 and the elongated nacelle door 3.

[0028] When the driving device drives the elongated nacelle door 3 to move downward, the two short nacelle doors 2 swing inward respectively, so as to drive the two duct bodies 1 to be stored inward respectively, until the two short nacelle doors 2 are folded above the elongated nacelle door 3.

[0029] Therefore, the foldable duct of the embodiment of the present application can fold and store the two duct bodies 1 in the vehicle body 4 when the flying car is in the ground driving state, effectively control the volume of the flying car, so that the flying car does not increase the aerodynamic drag when driving on the ground, and is more convenient to store. When the flying car needs to be changed from the ground driving state to the flying state or to be stably flown, the two duct bodies 1 are unfolded to the two sides outside the vehicle body 4 respectively, so as to provide power for the flying car.

[0030] The core contradiction of the existing ducted flying car is that a large-diameter duct can improve the lift efficiency, but the opening of the vehicle body after unfolding will significantly damage the aerodynamic shape. That is, when the large-diameter duct is arranged at the rear of the vehicle body, a larger opening will be generated after the duct is unfolded from the inside of the vehicle body, which will cause a larger resistance to the vehicle body during flight. Therefore, the foldable duct of the embodiment adopts a linkage structure form between the duct body 1, the short nacelle door 2 and the lengthened nacelle door 3, which can pull the two short nacelle doors 2 to the preset dead point when the lengthened nacelle door 3 rises to the roof position (a preset dead point position is arranged), so that the two duct bodies 1 are unfolded in place, thereby filling the space of the duct through the cooperation of the lengthened nacelle door 3 and the two short nacelle doors 2, ensuring that the roof shape is smooth and closed, and eliminating the airflow separation phenomenon.

[0031] In some embodiments of the present application, the driving device includes a center driving rod 5 and a driving mechanism (not shown in the figure) drivingly connected to the upper end of the center driving rod 5, and the lower end of the center driving rod 5 is fixedly connected with the center position of the lengthened nacelle door 3. That is, the center driving rod 5 can be driven to move up and down by the driving mechanism to drive the lengthened nacelle door 3 to move up and down, and then the linkage cooperation between the duct body 1, the short nacelle door 2 and the lengthened nacelle door 3 is realized to fold or unfold the duct body 1.

[0032] In some embodiments of the present application, the foldable duct further includes two symmetrically arranged limiting rods 6, one end of each of the two limiting rods 6 is fixedly connected with the outer wall of each of the two duct bodies 1, and the other end of each of the two limiting rods 6 is connected with the vehicle body 4 of the flying car through a connecting shaft. When the duct body 1 is unfolded or folded, the limiting rod 6 swings around the connecting shaft as the center. That is, by arranging the limiting rods 6 corresponding to the two duct bodies 1, the unfolding or folding movement track of the duct body 1 can be limited, so that the duct body 1 moves according to the predetermined track, and the structural stability and reliability of the foldable duct are improved.

[0033] The present application also provides a flying car including the foldable duct of the above-mentioned embodiments, and a duct fan is installed in each of the duct bodies. The flying car further includes a tilting mechanism for controlling the mode conversion of the duct fan between the horizontal state and the vertical state.

[0034] When the flying car is in the ground driving state, the two duct bodies are respectively in the folded state and are stored in the vehicle body.

[0035] When the flying car changes from the ground driving state to the flying state, the two duct bodies are unfolded from the inside of the vehicle body to the left and right sides outside the vehicle body, and at the same time, the duct fan is converted from the horizontal state to the vertical state to provide the maximum lift.

[0036] When the flying car takes off and stabilizes, the ducted fan gradually transitions from a vertical to a horizontal state to provide maximum forward thrust.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A foldable duct, installed on a flying car, characterized in that, The vehicle includes two ducted bodies, two short doors, an extended door, and a drive unit. The two ducted bodies and the two short doors are symmetrically arranged. The drive unit is driven and connected to the extended door. Both ends of the extended door are rotatably connected to one end of each of the two short doors, and the other ends of each of the two short doors are rotatably connected to the outer walls of the two ducted bodies. The drive unit is used to drive the extended door to move up and down, so as to extend the two ducted bodies outside the vehicle body or retract them into the vehicle body.

2. The foldable duct according to claim 1, characterized in that, When the drive device drives the extended hatch to move upward, the two short hatches swing outward to drive the two duct bodies to unfold outward until the two short hatches extend to the left and right sides of the extended hatch, so that a smooth closed surface is formed between the two short hatches and the extended hatch.

3. The foldable duct according to claim 1, characterized in that, When the drive device drives the extended hatch to move downward, the two short hatches swing inward to drive the two duct bodies to retract inward until the two short hatches fold above the extended hatch.

4. The foldable duct according to claim 1, characterized in that, The drive device includes a central drive rod and a drive mechanism that is driven to the upper end of the central drive rod. The lower end of the central drive rod is fixedly connected to the center position of the extended hatch.

5. The foldable duct according to claim 1, characterized in that, It also includes two symmetrically arranged limiting rods. One end of each limiting rod is respectively connected and fixed to the outer wall of the two duct bodies, and the other end of each limiting rod is respectively connected to the vehicle body of the flying car through a connecting shaft. When the duct body is deployed or retracted, the limiting rods swing around the connecting shaft.

6. A flying car, characterized in that, The foldable duct as described in any one of claims 1 to 5 is provided, wherein a duct fan is installed in each of the duct bodies.

7. The flying car according to claim 6, characterized in that, It also includes a tilting mechanism for controlling the ducted fan to switch modes between horizontal and vertical states.

8. The flying car according to claim 7, characterized in that, When the flying car is in a ground driving state, the two duct bodies are folded and stored in the vehicle body.

9. The flying car according to claim 8, characterized in that, When the flying car transitions from a ground driving state to a flight state, the two ducted bodies extend from inside the vehicle body to the left and right sides outside the vehicle body, and at the same time, the ducted fans change from a horizontal state to a vertical state to provide maximum lift.

10. The flying car according to claim 9, characterized in that, When the flying car takes off and stabilizes, the ducted fan gradually changes from a vertical position to a horizontal position to provide maximum forward thrust.

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