Aerocar wing and rotor wing hybrid folding and unfolding system and aerocar

Abstract

The invention discloses an aerocar wing and rotor wing hybrid folding and unfolding system and an aerocar. The aerocar wing and rotor wing hybrid folding and unfolding system comprises a car body, wings on the two sides, wing rotating mechanisms, rotor wing supports, rotor wing support rotating mechanisms and rotor wing assemblies. The wings are movably connected to the vehicle body; the wings and the wing rotating mechanisms are symmetrically arranged on the two sides of the vehicle body, and the wing rotating mechanisms drive the wings to rotate and unfold to the two sides of the vehicle body or reversely rotate and retract to the inner side of the vehicle body and do not exceed the edges of the wings, so that conversion between the vehicle working state and the flying working state of the wings can be completed. The rotor support is movably connected to the wing, and the rotor support is rotated by starting the rotor support rotating mechanism, so that the rotation of the rotor support on the wing surface is realized. According to the invention, ultra-short-distance take-off and landing and stable flight in the air of the aerocar can be realized. In addition, when the vehicle runs on the ground, the wings and the rotors can be rotationally folded and placed on the inner side of the vehicle body, space is saved, the appearance is attractive, and the ground vehicle use requirements are met.

Description

[0001] This application is a divisional application of the Chinese patent application submitted to the China Patent Office on July 22, 2022, with application number 202210874278.6 and invention name "A hybrid retractable system for flying car wings and rotors and a flying car". Technical Field

[0002] The present invention relates to the technical field of aircraft and automobile design, and in particular to a hybrid retractable system for wings and rotors of a flying automobile and a flying automobile. Background Art

[0003] At present, urban congestion has become a common problem worldwide. On the one hand, the number of vehicles on the ground is increasing, urban traffic pressure is increasing, and traffic congestion occurs frequently; on the other hand, the ground space is limited, and it is difficult to balance people, vehicles, and land, resulting in people's increasing demand for air transportation.

[0004] The existing publicly published flying car concepts and patented technologies are mainly concentrated in the following three aspects. First, flying cars with vertical take-off and landing based on multi-rotor layout; the advantage is that it occupies a small area and can take off and land at any time; the disadvantage is that the endurance time and mileage are short. Second, flying cars based on fixed-wing layout; the advantage is long endurance and large load; the disadvantage is that a runway is required to complete take-off and landing. Third, flying cars based on tilt-rotor or tilt-wing technology; the advantage is that it combines the advantages of multi-rotor and fixed-wing layouts, and the disadvantage is that the wing volume is large.

[0005] In order to solve the above-mentioned problems, for example, a patent application with application number 201820928031.7 discloses a six-rotor arrangement structure of a tandem-wing flying car and a flying car, including two front rotors, two rear rotors, a tail rotor and a head rotor; the two front rotors and the two rear rotors are symmetrically arranged on the left and right sides of the car through the corresponding front wings and rear wings in turn; the tail rotor is arranged behind the tail of the car through the lower tail rod; the head rotor is arranged in front of the head of the car through the head connecting rod; its six rotors work together to provide the flying car with upward flight power and power to maintain the vertical direction of flight. The power generated by the rotors offsets the gravity of the car, allowing the car to maintain balance in the air. The patent application with application number 201820928120.1 discloses a flying car with a single wing and four rotors, including two side rotors, a tail rotor and a head rotor. The left and right sides of the body are symmetrically provided with wings extending horizontally outward, and the side rotors are provided below the middle of the wings; the tail of the body is provided with a lower tail rod extending horizontally backward, and the tail rotor is provided below the lower tail rod; the head of the body is provided with a head connecting rod extending horizontally forward, and the head rotor is provided below the head connecting rod; the layout of the four rotors around the body provides the flying car with upward lift, so that the flying car can take off. The patent application with application number 201820928117.X discloses a flying car tandem double-wing retractable system and a flying car, including two front wings and two rear wings symmetrically located on both sides of the body, each front wing is provided with a front rotor near the end; each rear wing is provided with a rear rotor near the end. The front wing can be rotated and retracted into the front wing compartment of the vehicle body, and the rear wing can be rotated and retracted into the rear wing compartment of the vehicle body; when the flying car is flying, the front wing and rear wing are opened, and the front rotor and rear rotor provide lift for flight. When driving on land, the front wing and rear wing are rotated and retracted into the vehicle body, which conforms to the beauty of the car. The large number of wings in these three patents leads to a complex structure; the small number of rotors may not meet the requirements of smooth takeoff and landing; and the technical solutions do not involve how the rotor blades meet the requirements of occupying a small space and being in a fixed state when the structure is in the car state; in short, the technical solutions of these three patents are not simple in structure, and the take-off and landing performance is not easy to control smoothly.

[0006] Therefore, how to provide a flying car that saves space, has simple and stable take-off and landing, and flies smoothly is a problem that technicians in this field urgently need to solve. Summary of the invention

[0007] In order to solve the problems that the existing flying car concept occupies a large area and lacks design integration of fixed-wing state, multi-rotor state, and car state, an embodiment of the present invention provides a flying car wing and rotor hybrid retractable system and a flying car.

[0008] In order to achieve the above object, the present invention provides the following technical solutions: A hybrid retractable system for wings and rotors of a flying car, comprising: a vehicle body, wings on both sides, a wing rotating mechanism, a rotor support, a rotor support rotating mechanism, and a rotor assembly; The wing is movably connected to the vehicle body; the wing and the wing rotation mechanism are symmetrically arranged on both sides of the vehicle body; the wing rotation mechanism drives the wing to rotate and unfold to both sides of the vehicle body, or rotates in the opposite direction to retract to the inner side of the vehicle body without exceeding the edge of the wing, so as to complete the conversion of the wing between the vehicle working state and the flight working state; after the conversion between the vehicle working state and the flight working state is completed, the position between the wing and the vehicle body is relatively fixed and no longer movable. Alternatively, the wing can also be fixed and stay at any position during the rotation process.

[0009] The rotor support is movably connected to the wing, and the rotor support is rotated by starting the rotor support rotation mechanism to realize the rotation of the rotor support on the wing surface. Preferably, the rotor support rotation mechanism drives the rotor support on the wing surface to rotate from a state parallel to the longitudinal axis of the vehicle body to a state perpendicular to the longitudinal axis of the vehicle body as the wing surface rotates, and can also rotate back in the opposite direction, that is, it can complete the conversion between the automobile working state and the flight working state of the rotor assembly; or, the rotor support can also be fixed and stay at any position during the rotation process to complete the conversion between the automobile working state and the flight working state of the rotor assembly. After completing the conversion between the automobile working state and the flight working state, the position between the rotor support and the wing is relatively fixed and no longer active. Preferably, the rotor support is preferably a rod.

[0010] Furthermore, the wings on both sides are arranged on the vehicle body close to the front of the vehicle; and one or more rotor supports can be installed on the wings.

[0011] Furthermore, the rotor support is an integral rotor support, and its rotation center point is set at any position between the two ends of the rotor support.

[0012] Optionally, the rotor support is divided into two parts including a front rotor support and a rear rotor support, and the two share a rotation center point, or each has a rotation center point.

[0013] Furthermore, the wing rotation mechanism drives the wing to rotate through a servo, a pin shaft, a gear, a pulley, a chain drive, a connecting rod or a combination of the above methods. By starting the wing rotation mechanism, the wing is driven to rotate to both sides of the vehicle body, or rotate in the opposite direction into the inside of the vehicle body, and can stay at any position during the rotation process.

[0014] Furthermore, the rotor support rotating mechanism drives the rotor support to rotate through a servo, a pin shaft, a gear, a pulley, a chain drive, a connecting rod or a combination of the above methods, and the rotor support is rotated by starting the rotor support rotating mechanism to realize the rotation of the rotor support on the wing surface.

[0015] Furthermore, the wing surface includes an upper surface and a lower surface, and the rotor support is arranged above the upper surface of the wing surface or below the lower surface of the wing surface.

[0016] Furthermore, the rotor assembly includes a motor and a rotor; the rotor is fixedly connected to the motor output shaft, and the motor is mounted on the rotor support through a fixed or rotatable device. Preferably, the rotor assembly in the front direction of the flying car (front rotor assembly) is fixedly connected to the rotor support through a rotatable steering gear mechanism, and the rotor assembly in the rear direction of the flying car (rear rotor assembly) is fixedly connected to the rotor support through a non-rotatable rotor support.

[0017] Furthermore, one or more rotor assemblies may be mounted on the rotor support. Preferably, two rotor assemblies are mounted on one rotor support.

[0018] The present invention also provides a flying car, comprising the hybrid retractable system of flying car wings and rotors as described in any one of the above, and also comprising a vertical wing and a horizontal wing arranged at the rear of the vehicle body, and also comprising a vehicle steering system, a power assembly and a flight control joystick; The steering system and the powertrain are installed at the bottom of the vehicle body; and the flight control joystick is installed inside the vehicle body.

[0019] The flying car's steering system is installed on the front axle of the wheel, and the powertrain is installed on the rear axle.

[0020] The main driving seat of the flying car is equipped with a steering wheel and a flight control joystick.

[0021] The rotor surface of the rotor can be driven by the servo mechanism, so it can stay in any position during the tilting process.

[0022] Under the premise of providing sufficient lift, the size of the rotor is determined by two factors. First, the diameter of the rotor should be smaller than the length of the rotor support. Second, if the rotor has a tilt function, it must ensure that the radius of the rotor should be smaller than the height of the rotor from the ground.

[0023] Furthermore, when the flying car is on the ground, the deployment of the rotor can be completed by manual pushing, or by the drive motor directly throwing it out. When the rotor needs to be folded and retracted, it can be completed by manual pushing.

[0024] The present invention drives a plurality of rotors to be retracted from both sides of the wing to the space within the wing surface range through the rotation of the wing and the rotation of the rotor support component, thereby realizing the conversion of the flying car from the flying state to the car state; drives a plurality of rotors to be unfolded from the space within the wing surface range to both sides of the wing through the rotation of the wing and the rotation of the rotor support component, and the wing is unfolded at the same time, thereby realizing the conversion of the flying car from the car state to the flying state. The structure is simple, and the unfolding is rapid and orderly.

[0025] Through the above technical solutions, it can be seen that compared with the prior art, the present invention discloses a flying car with vertical take-off and landing, fixed-wing, and vehicle modes. The multi-rotor is used to realize the vertical take-off and landing function, saving the runway length and take-off and landing time; through the combination of the tilting of the rotor and the wing, a long-endurance fixed-wing flight can be realized; through the rotation of the wing around the vehicle body, and at the same time in conjunction with the rotation of the rotor support structure on the wing, a flying car with a small footprint and meeting the vehicle size requirements of road traffic regulations is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an isometric view of the flying car in flight mode and vertical take-off and landing; Figure 2 for Figure 1 A top view of Figure 3 for Figure 1 The main view of Figure 4 for Figure 1 Left view of Figure 5 for Figure 1 Right view of; Figure 6 This is an isometric view of the flying car in driving mode; Figure 7 for Figure 6 A top view of Figure 8 for Figure 6 The main view of Fig. 9 for Figure 6 Left view of Fig.10 for Figure 6 Right view of; Fig.11 This is an isometric view of the flying car in forward flight mode; Fig.12 An isometric view of the steering system and powertrain layout for the flying car; Fig.13 It is an isometric view of the wing rotation mechanism and the rotor support rotation mechanism; Fig.14 It is an isometric view of the rotor tilting process; Fig.15 It is an isometric view of the rotor folding process; Fig.16 An isometric view of the flight control stick; Fig.17 The structural diagram of the connecting rod as the rotor support rotating mechanism; Fig.18 The structural diagram of the connecting rod as the wing rotation mechanism; Fig.19 It is a structural diagram of a pulley mechanism as a rotor supporting rotating mechanism; Fig. 20 The structure diagram of the pulley mechanism as the wing rotation mechanism; Fig.21 A structural diagram showing that a plurality of rotor supports are arranged on one wing and more than one (two) rotor supports are arranged on one rotor support; Fig. 22 for Fig.21 Vehicle mode state diagram; Fig.23 This is the flight control circuit distribution diagram.

[0027] Explanation of symbols: 100-body, 200-wing, 201-aileron, 211-upper surface of wing, 212-lower surface of wing, 300-vertical tail, 301-rudder, 400-horizontal tail, 401-elevator, 500-rotor assembly, 501-rotor, 502-motor, 503-rotor upper clip, 504-rotor lower clip, 510-tilt servo assembly, 511-tilt servo motor, 512-tilt servo U-shaped bracket, 520-motor fixing plate, 600-rotor support (or front rotor support), 61 0-rear rotor support, 700-rotor support rotating mechanism, 72-support connecting rod, 73-support pulley, 711-connecting rod support shaft, 712-support connecting rod first pin shaft, 713-support connecting rod third pin shaft, 714-support connecting rod second pin shaft, 715-support driven connecting rod, 716-support driving connecting rod, 721-support pulley shaft, 722-support driven pulley, 723-support driving pulley, 724-support pulley motor, 791-rotor support rotating steering gear, 792-steering gear one-arm, 800-wing rotating mechanism, 8 2-wing connecting rod, 83-wing pulley, 811-connecting rod wing root shaft, 812-wing connecting rod first pin shaft, 813-wing connecting rod third pin shaft, 814-wing connecting rod second pin shaft, 815-wing driven connecting rod, 816-wing driving connecting rod, 821-pulley wing root shaft, 822-wing driven pulley, 823-wing driving pulley, 824-wing pulley motor, 825-wing belt, 891-wing rotating servo, 892-servo one-arm, 900-steering system, 901-steering wheel, 902-steering universal joint, 9 03-steering rod, 904-front wheel support rod, 905-front wheel, 910-power assembly, 911-rear wheel drive motor, 912-rear wheel drive shaft, 913-rear wheel support rod, 1000-flight control stick, 1001-stick switch, 1002-multi-rotor and fixed-wing flight status switch, 1003-handle, 1004-left yaw button, 1005-right yaw button, 1006-throttle lever, 1007-brake lever, 1010-flight control stick base, 1100-flight control signal line. DETAILED DESCRIPTION

[0028] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the terms "front", "rear", "left" and "right" used in the following description are based on the front direction of the vehicle as the front, the rear direction of the vehicle as the rear, and from the rear to the front direction of the vehicle, the left hand side is the left, and the right hand side is the right, "up" and "down" refer to the directions in the accompanying drawings, and the terms "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0029] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0030] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] like Figure 1-11 As shown, the hybrid retractable system of the flying car wing and rotor of the present invention comprises: a vehicle body, wings on both sides, a wing rotating mechanism, a rotor support, a rotor support rotating mechanism, and a rotor assembly; The wing is movably connected to the vehicle body; the wing rotation mechanism drives the wing to rotate from a state parallel to the longitudinal axis of the vehicle body to a state perpendicular to the longitudinal axis of the vehicle body, and can also rotate back in the opposite direction, that is, the wing can be switched between the vehicle working state and the flight working state; or, the wing can be fixed and stay at any position during the rotation process, and the wing can be switched between the vehicle working state and the flight working state; after the switch between the vehicle working state and the flight working state is completed, the position between the wing and the vehicle body is relatively fixed and no longer movable; The rotor support is movably connected to the wing. By starting the rotor support rotation mechanism to rotate the rotor support, the rotor support is rotated on the wing surface, so that it can rotate from a state parallel to the longitudinal axis of the wing (the axis perpendicular to the longitudinal axis of the vehicle body when the wing is unfolded is the longitudinal axis of the wing) to a state perpendicular to the longitudinal axis of the wing, and can also rotate back in the opposite direction; when the wing rotates from a state parallel to the longitudinal axis of the vehicle body (car working state) to a state perpendicular to the longitudinal axis of the vehicle body (flight working state), the rotor support on the wing surface rotates from a state parallel to the longitudinal axis of the wing to a state perpendicular to the longitudinal axis of the wing, and can also rotate back in the opposite direction; that is, the conversion of the rotor assembly between the car working state and the flight working state can be completed; or, the rotor support can also be fixed and stay at any position during the rotation process to complete the conversion of the rotor assembly between the car working state and the flight working state. After the conversion between the car working state and the flight working state is completed, the position between the rotor support and the wing is relatively fixed and no longer active.

[0033] The wing surface can be parallel to the longitudinal axis of the fuselage, or it can be at a certain angle to the longitudinal axis of the fuselage.

[0034] The rotor support can be parallel to the wing surface or at a certain angle to the wing surface.

[0035] The wing, the wing rotating mechanism and the rotor assembly are symmetrical about the longitudinal axis of the vehicle body.

[0036] like Figure 1 As shown, the wings on both sides are arranged on the vehicle body near the front of the vehicle, and the wings can be installed with one or more of the rotor supports.

[0037] The rotor support is an integral rotor support, and its rotation center point is set at any position between the two ends of the rotor support. Figure 1 In the embodiment shown, the rotation center point is set in the middle of the rotor support, and this structure is the preferred structure of the present invention. Preferably, a front rotor support and a rear rotor support are set on one side of the wing, arranged above the wing, the front rotor support and the rear rotor support are an integral support, share the rotation center point, and a rotor assembly is set at each end of the rotor support.

[0038] like Fig.21 As shown, the rotor support is divided into two parts, including a front rotor support and a rear rotor support, and the two can share a rotation center point, and one end of the rotation center points of the two can overlap; or each can set a rotation center point. Fig.21 As shown, the rotor support is a two-stage type, a front rotor support and a rear rotor support, and the lengths of the front rotor support and the rear rotor support are equal or unequal. Two front rotor supports and three rear rotor supports are arranged on one side of the wing, arranged above and below the wing, the front rotor support and the rear rotor support have their own rotation axes, do not share a rotation center point, and each rotor support is provided with one or more rotors.

[0039] like Fig.13 , 18 As shown in 20, the wing rotation mechanism can drive the wing rotation through a servo, a pin shaft, a gear drive, a pulley drive, a chain drive, a connecting rod or a combination of the above methods. By starting the wing rotation mechanism, the wing is driven to rotate to the sides of the vehicle body, or rotate in the opposite direction into the inside of the vehicle body, and can be fixed at any position during the rotation process, thereby completing the conversion between the vehicle working state and the flight working state of the wing.

[0040] Specifically, Fig.13As shown, the wing rotation mechanism is driven by a steering gear, and its structure and principle are as follows: At this time, the wing rotation mechanism consists of two parts: a wing rotation steering gear and a steering gear arm. The steering gear can be regarded as an integration of a motor and a gear set, and the torque output by the motor can be amplified. The steering gear is fixedly mounted on the fuselage. The steering gear arm is mounted on the steering gear output shaft and is fixedly connected to the wing. When the steering gear output shaft rotates, the steering gear arm drives the wing to rotate, and the wing rotation steering gear is commercially available. This is a preferred embodiment of the present invention.

[0041] Specifically, Fig.18 As shown, the wing rotation mechanism is driven by a connecting rod, and its structure and principle are as follows: When the connecting rod is used as the wing rotation mechanism, the installation relationship is as follows: the connecting rod wing root shaft is fixedly connected to the vehicle body. The wing driven connecting rod is fixed to the wing by rotating around the first pin of the wing connecting rod, and rotates around the first pin of the wing connecting rod. The wing driving connecting rod is fixed to the vehicle body by the second pin of the wing connecting rod, and rotates around the second pin of the wing connecting rod. The wing driven connecting rod and the wing driving connecting rod are connected by the third pin of the wing connecting rod, and rotate around the third pin of the wing connecting rod.

[0042] Working principle: When the wing driving link rotates around the second pin of the wing link, the wing driven link is driven by the third pin of the wing link to drive the wing to rotate around the wing root axis of the link above the vehicle body. The rotation angle of the wing driving link around the second pin of the wing link controls the rotation angle of the wing around the wing root axis of the link, thereby controlling the wing to retract to the inside of the vehicle body or to unfold on both sides of the vehicle body.

[0043] Specifically, Fig. 20 As shown, the wing rotation mechanism is driven by a pulley mechanism, and its structure and principle are as follows: When the pulley mechanism is used as the wing rotation mechanism, the installation relationship is as follows: the pulley wing root shaft is fixedly connected to the vehicle body. The wing is fixedly connected to the wing driven pulley and rotates above the vehicle body around the pulley wing root shaft. The wing driven pulley and the wing driving pulley rotate through the wing belt transmission. The wing driving pulley is fixed to the output shaft of the wing pulley motor. The wing pulley motor is fixed to the vehicle body.

[0044] Working principle: The wing pulley motor is tightly connected to the vehicle body and remains relatively stationary. When the wing pulley motor rotates, it drives the wing driving pulley to rotate. The wing driving pulley transmits the rotational motion to the wing driven pulley through the wing belt transmission. Because the wing and the wing driven pulley are fixedly connected, they rotate together around the pulley wing root axis above the vehicle body. Therefore, when the wing pulley motor rotates, it drives the wing to rotate around the pulley wing root axis through the belt transmission mechanism. The rotation angle is controlled by the wing pulley motor, thereby controlling the wing to retract to the inside of the vehicle body or unfold on both sides of the vehicle body.

[0045] like Fig.13 , 17As shown in 19, the rotor support rotation mechanism drives the rotor support to rotate through a steering gear, a pin shaft, a gear transmission, a pulley mechanism transmission, a chain transmission or a connecting rod or a combination of the above methods, and the rotor support is rotated by starting the rotor support rotation mechanism to realize the rotation of the rotor support on the wing surface. The rotor support is preferably a rod.

[0046] Specifically, Fig.13 As shown, the rotor support rotation mechanism is driven by a steering gear, and its structure and principle are as follows: At this time, the rotor support rotation mechanism includes two parts: a rotor support rotation servo and a servo arm. The servo can be regarded as an integration of a motor and a gear set, and the torque output by the motor can be amplified. The servo is fixedly mounted on the wing. The servo arm is mounted on the servo output shaft and is fixedly connected to the rotor support. When the servo output shaft rotates, the servo arm drives the rotor support to rotate, and the rotor support rotation servo is commercially available. This scheme is a preferred scheme of the present invention.

[0047] Specifically, Fig.17 As shown, the rotor support rotation mechanism is driven by a connecting rod, and its structure and principle are as follows: When the connecting rod is used as the rotor support rotation mechanism, the installation relationship is as follows: the front rotor support and the rear rotor support are fixedly connected above the wing. The connecting rod support shaft is fixedly connected to the wing. The support driven connecting rod is fixed to the rear rotor support by rotating around the first pin of the support connecting rod, and rotates around the first pin of the support connecting rod. The support driving connecting rod is fixed to the wing by the second pin of the support connecting rod, and rotates around the second pin of the support connecting rod. The support driven connecting rod and the support driving connecting rod are connected by the third pin of the support connecting rod, and rotate around the third pin of the support connecting rod.

[0048] Working principle: When the support driving link rotates around the second pin of the support link, the third pin of the support link drives the support driven link to drive the rear rotor support and the front rotor support to rotate around the link support shaft above the wing. The rotation angle of the support driving link around the second pin of the support link controls the rotation angle of the front rotor support and the rear rotor support around the link support shaft, thereby controlling the front rotor support and the rear rotor support to retract to the inside of the wing or to unfold on both sides of the wing.

[0049] Specifically, Fig.19 As shown, the rotor support rotating mechanism is driven by a pulley mechanism, and its structure and principle are as follows: When the pulley mechanism is used as the rotor support rotation mechanism, the installation relationship is as follows: the front rotor support and the rear rotor support are fixedly connected above the wing. The support pulley shaft is fixedly connected to the wing. The front rotor support and the rear rotor support are fixedly connected to the support driven pulley, and they rotate together around the support pulley shaft above the wing. The support driven pulley and the support driving pulley rotate through the support belt transmission. The support driving pulley is fixed to the output shaft of the support pulley motor. The support pulley motor is fixed to the wing.

[0050] Working principle: The support pulley motor is tightly connected to the wing and remains relatively stationary. When the support pulley motor rotates, it will drive the support active pulley to rotate. The support active pulley transmits the rotational motion to the support driven pulley through the support belt transmission. Because the front rotor support and the rear rotor support are fixedly connected to the support driven pulley, they rotate together around the support pulley shaft above the wing. Therefore, when the support pulley motor rotates, it will drive the front rotor support and the rear rotor support to rotate around the support pulley shaft through the belt transmission mechanism. The rotation angle is controlled by the support pulley motor, thereby controlling the front rotor support and the rear rotor support to retract to the inside of the wing or unfold on both sides of the wing.

[0051] like Fig.16 As shown, the airfoil surface includes an upper surface and a lower surface, and the rotor is arranged above the upper surface of the airfoil surface or below the lower surface of the airfoil surface.

[0052] As an example, Figure 1 As shown, the rotor assembly is disposed above the upper surface of the wing surface.

[0053] As an example, Fig.21 As shown, the rotor assembly may also be disposed below the lower surface of the wing surface.

[0054] like Fig.14 As shown, the rotor assembly is connected to the rotor support through the tilt servo U-shaped bracket of the tilt servo assembly, and the tilt servo motor can drive the tilt servo U-shaped bracket to rotate within the range of 0 to 180 degrees. In order to meet the state requirements of the flying car's ascent and descent and forward movement, the rotor assembly is preferably tilted within a range of 90 degrees parallel to and perpendicular to the wing surface, and can be fixed and stayed at any position during the tilting process (that is, the rotor surface of the rotor can be tilted within a range of 90 degrees parallel to and perpendicular to the wing surface, meeting the state requirements of the flying car's ascent and descent and forward movement), and the tilt servo is commercially available. This is the preferred solution of the present invention.

[0055] As an example, Fig.13 As shown, the rear rotor assembly is fixedly connected to the rotor support through the motor fixing plate. Therefore, the rear rotor assembly cannot be tilted. This example is a preferred example of the present invention.

[0056] The present invention also provides a flying car, comprising the hybrid retractable system of flying car wings and rotors as described in any one of the above, and also comprising a vertical wing and a horizontal wing arranged at the rear of the vehicle body, and also comprising a vehicle steering system, a power assembly and a flight control joystick; The steering system and the powertrain are installed at the bottom of the vehicle body; and the flight control joystick is installed on the side of the cockpit seat.

[0057] like Fig.12 As shown, the steering system of the flying car is installed on the front axle of the wheel, and the powertrain is installed on the rear axle. The steering system includes a steering wheel, a steering universal joint, a steering tie rod and a front wheel. The powertrain includes a rear wheel drive motor, a rear wheel drive shaft and a rear wheel support rod.

[0058] like Fig.12 As shown, the main driving seat of the flying car is equipped with a steering wheel and a flight control joystick.

[0059] like Fig.14 As shown, the rotor surface of the rotor can be driven by a steering gear mechanism and can therefore stay in any position during the tilting process.

[0060] like Figure 7 and 11 As shown, according to some embodiments of the present invention, under the premise of providing sufficient lift, the size of the rotor is determined by two factors. First, the diameter of the rotor should be less than the length of the rotor support. Second, the radius of the tilt rotor should be less than the height of the tilt rotor from the ground. Preferably, the rotor diameter in the embodiment of the present invention is less than 2.5 meters.

[0061] like Fig.15 As shown, in this embodiment, the rotor assembly can be subdivided into a rotor, an upper rotor clip, a lower rotor clip, and a motor. The two rotors are clamped by the upper and lower clips and tightened by the fastening screws. The tightening force is such that the rotor will not be ejected, but it should also ensure that the rotor can rotate around the fastening screws. Since the total height of the flying car is less than 1.7 meters, when the flying car is ready to enter the vehicle mode, an adult can fold the rotors on the ground. Fig.15 The folded state is shown in the figure. When the flying car enters the take-off preparation state, the rotor can open automatically under the action of centrifugal force by relying on the torque output by the motor. When the rotor is folded to the same straight line as the rotor support, the rotor will not exceed the width of the vehicle body, and there will be no interference between adjacent rotors; at the same time, in order to avoid interference between adjacent rotors during operation, the heights of adjacent rotors must be staggered during design, or there must be enough distance between the rotors.

[0062] like Figure 7, 8, 9, the total length of the flying car does not exceed 6 meters, the total width does not exceed 2 meters, the total height does not exceed 1.7 meters, the wingspan is less than 9 meters, and the wing chord length is less than 1.2 meters. Therefore, the flying car proposed by the present invention meets the size requirements of a passenger car and can be driven on urban roads.

[0063] like Figure 6 As shown, the working principle of the flying car on the ground is described as follows. In the default vehicle mode, the wings of the flying car rotate and retract to the inside of the car body, and the rotor support drives the rotor assembly to rotate and retract to the inside of the wing. At this time, the driver enters the main driving seat of the flying car cockpit, starts the power assembly to drive the flying car on the ground, and controls the direction of the flying car through the steering wheel. When arriving at the destination, the driver can turn off the power assembly, and the flying car stops.

[0064] After the flying car switches to flight mode, it is mainly controlled by the flight control stick, such as Fig.16 , Fig.23 As shown, the flight control stick mainly includes a stick switch, a multi-rotor and fixed-wing flight state switching switch, a grip, a left yaw button, a right yaw button, a throttle lever, a brake lever and a flight control stick base. The flight control stick is connected to the flight control signal line.

[0065] Fig.23 FIG. 1 is a flight control circuit distribution diagram of an embodiment of the present invention. The double-dotted line in the figure is a flight control signal line, which starts from the flight control joystick and is connected to the rotor assembly, the tilt steering gear assembly, the wing aileron, the horizontal tail rudder and the vertical tail elevator. The flight control signal line transmits the control signal of the flight control joystick to the rotor, wing and tail, respectively, so as to control the corresponding driving mechanisms such as the motor and the steering gear to realize the conversion of the flight state. The specific control method is as follows: like Figure 1 and 16 As shown, the working principle of the flying car's transition from vehicle mode to flight mode is discussed as follows. After the driver enters the main driving seat in the flying car cockpit, he starts the flight control stick by triggering the stick switch of the flight control stick and turns off the vehicle mode. At this time, the wings are driven by the wing rotation mechanism and unfold from the inside of the vehicle body to both sides of the vehicle body. The wings unfold from being parallel to the longitudinal axis of the vehicle body to being perpendicular to the longitudinal axis. At the same time, the rotor support is driven by the rotor support drive mechanism to drive the rotor assembly to unfold from the inside of the wing to being perpendicular to the wing. Preferably, the rotor support unfolds in an orderly manner in a direction parallel to the upper surface of the wing, and the front rotor and rear rotor wing surfaces are parallel to the horizontal plane. The flying car enters a take-off preparation state.

[0066] like Figure 1 and 16As shown in the figure, the flying car take-off process works. The driver toggles the multi-rotor and fixed-wing flight state switching switch on the flight control stick to switch the flying car to the multi-rotor state. The multi-rotor and fixed-wing flight state switching switch is a three-stage switch. The default middle position of the switch is the empty position. Rotating it to the left switches the flying car to the multi-rotor state, and rotating it to the right switches it to the fixed-wing state. Then, the driver triggers the throttle lever on the flight control stick, and the motor of the rotor assembly starts, which in turn drives the rotor to rotate. When the rotor generates enough lift, the flying car takes off vertically. The principle of the flying car landing is the reverse process of the above process. The difference is that the driver reduces the rotor speed by triggering the brake lever on the flight control stick, so that the flying car gradually lands.

[0067] like Figure 1 and 16 As shown in the figure, the flying car's multi-rotor state motion principle in the air. When the flying car is in the hovering state in the air, the driver can control the flying car to roll, pitch, and yaw in a multi-rotor state by manipulating the direction of the flight control joystick. When the flight control joystick grip is pushed forward, the speed of the flying car's rear rotor is higher than that of the front rotor, thereby generating a forward lift difference, and the flying car flies forward. On the contrary, the flying car flies backward. When the flight control joystick grip is pushed to the left, the speed of the flying car's right rotor is higher than that of the left, thereby generating a lift difference to the left, and the flying car flies to the left. On the contrary, the flying car flies to the right. When the left yaw button of the flight control joystick is triggered, the speed of the flying car's left front rotor and right rear rotor is higher than that of the right front rotor and left rear rotor, thereby generating a lift difference deflected to the left, and the flying car rotates to the left. On the contrary, when the right yaw button of the flight control joystick is triggered, the flying car rotates to the right. The control principle of the multi-rotor state of the present invention is a prior art. For details, reference may be made to pages 18-20 of the book "Design and Implementation of Quadrotor Aircraft" by Wang Rui and Ding Xiaoqing (ISBN: 9787302489641).

[0068] like Fig.14 and 16As shown in the figure, the flying car changes from a multi-rotor state to a fixed-wing state. When the flying car is in the hovering state, the driver can toggle the multi-rotor and fixed-wing flight state switch on the flight control stick, and the flying car gradually changes from a multi-rotor state to a fixed-wing state. At this time, driven by the servo mechanism, the two front rotors of the flying car slowly transition from parallel to the horizontal plane to perpendicular to the horizontal plane, and then change the lift direction from perpendicular to the horizontal plane to parallel. The flying car slowly accelerates from the hovering state, and the wings gradually generate lift. When the lift generated by the wings is sufficient to overcome the gravity of the flying car, the flying car enters the fixed-wing flight state. At this time, the two rear rotors gradually stop, and under the control of the motor lock, the rotors finally overlap with the rotor support in the vertical direction and stop rotating. The flying car changes from the fixed-wing state back to the multi-rotor state is the reverse process of the above process. The switching between the multi-rotor and fixed-wing states of the present invention is a prior art. For details, reference may be made to pages 18-19 of the book "Tilt-rotor Aircraft Flight Control" written by Yang Jun, Wu Ximing, Fan Yonghua, and Yuan Bo (ISBN: 9787801837349).

[0069] like Fig.11 and 16 As shown, the flying principle of the flying car in the fixed-wing state. In the fixed-wing state, when the flight control joystick grip is pushed forward, the horizontal tail rudder of the flying car deflects upward, and the flying car dives down. On the contrary, the flying car lifts its head and climbs. When the flight control joystick grip is pushed to the left, the aileron rudder of the flying car's wing deflects, the right aileron is downward, the left aileron is upward, and the flying car tilts to the left. On the contrary, the flying car tilts to the right. When the left yaw button of the flight control joystick is triggered, the vertical tail rudder of the flying car deflects to the left, and the flying car yaws to the left. On the contrary, when the right yaw button of the flight control joystick is triggered, the flying car yaws to the right. The multi-rotor and fixed-wing state switching of the present invention is a prior art, and specific reference may be made to pages 17-18 of the book "Application of Basic Knowledge of Civil Aviation" written by Jiang Qun and Wang Chun (ISBN: 9787118075588).

[0070] like Figure 1 , 6 As shown in Figures 16, the working principle of the flying car's transition from flight mode to vehicle mode is discussed as follows. After the flying car lands vertically on the ground, the driver turns off the switch on the flight control stick and the flying car enters vehicle mode. At this time, the wings are driven by the wing rotation mechanism and retracted from both sides of the vehicle body to the inside of the vehicle body. Preferably, the wings are retracted from perpendicular to the longitudinal axis of the vehicle body to parallel to the longitudinal axis. At the same time, the rotor support is driven by the rotor support drive mechanism to drive the rotor assembly to retract from the outside of the wing to the inside of the wing. Preferably, the rotor support is retracted in an orderly manner in a direction parallel to the upper surface of the wing. The flying car enters vehicle mode.

[0071] like Fig.12 As shown, the flying car cockpit can accommodate at least two passengers. In front of the main driver's seat, a steering wheel and a supporting steering system for the flying car's driving mode are set, and the side of the main driver's seat is equipped with a flight control joystick and a supporting flight control system.

[0072] like Fig.12 As shown, in the embodiment of the present invention, the flying car adopts a rear-wheel drive mode, and the vehicle power assembly is connected to the wheels through the rear-wheel drive shaft to drive the flying car on the ground.

Claims

1. A hybrid retractable system for wings and rotors of a flying car, comprising: The vehicle body, wings on both sides, wing rotating mechanism, rotor support, rotor support rotating mechanism, and rotor assembly are characterized by: The wing is movably connected to the vehicle body; the wing and the wing rotation mechanism are symmetrically arranged on both sides of the vehicle body; the wing rotation mechanism drives the wing to rotate and unfold to both sides of the vehicle body, or rotate in the opposite direction and retract to the inside of the vehicle body; The rotor support is movably connected to the wing through a rotor support rotating mechanism, and the rotor assembly is arranged on the rotor support; the rotor support rotating mechanism drives the rotor support to be unfolded to both sides of the wing, or to rotate in the opposite direction and retract to the inner side of the wing, so as to realize the rotation of the rotor support on the wing surface.

2. The hybrid retractable system of wings and rotors of a flying car according to claim 1 is characterized in that: One or more of the rotor supports may be mounted on the wing.

3. The hybrid retractable system of wings and rotors of a flying car according to claim 1, characterized in that: The rotor support is an integral rotor support, and its rotation center point is set at any position between the two ends of the rotor support.

4. The hybrid retractable system of wings and rotors of a flying car according to claim 1, characterized in that: The rotor support is divided into two parts, including a front rotor support and a rear rotor support, and the two share a rotation center point, or each has a rotation center point.

5. The hybrid retractable system of wings and rotors of a flying car according to claim 1, characterized in that: The wing rotation mechanism drives the wing to rotate through a steering gear, a pin shaft, a gear, a pulley, a chain drive, a connecting rod or a combination of the above methods. By starting the wing rotation mechanism, the wing is driven to rotate to the two sides of the vehicle body, or rotate in the opposite direction into the inside of the vehicle body, and can stay at any position during the rotation process.

6. The hybrid retractable system of wings and rotors of a flying car according to claim 1, characterized in that: The rotor support rotating mechanism drives the rotor support to rotate through a servo, a pin shaft, a gear, a pulley, a chain drive, a connecting rod or a combination of the above methods. The rotor support is rotated by starting the rotor support rotating mechanism to achieve the rotation of the rotor support on the wing surface.

7. The hybrid retractable system of wings and rotors of a flying car according to claim 1, characterized in that: The rotor support may be arranged above the upper surface of the airfoil surface or below the lower surface of the airfoil surface.

8. The hybrid retractable system of wings and rotors of a flying car according to claim 1, characterized in that: The rotor assembly includes a motor and a rotor; the rotor is fixedly connected to the motor output shaft, and the motor is mounted on the rotor support through a fixing device or a rotatable device.

9. The hybrid retractable system of wings and rotors of a flying car according to claim 1, characterized in that: One or more rotor assemblies may be mounted on the rotor support.

10. A flying car, characterized in that: A flying car comprising a hybrid retractable system of wings and rotors according to any one of claims 1 to 9, a vertical wing and a horizontal wing arranged at the rear of the vehicle body, a vehicle steering system, a powertrain and a flight control mechanism; The steering system and the powertrain are mounted on the bottom of the vehicle body; The flight control controls are installed inside the vehicle body.

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