Deformable four-rotor unmanned aerial vehicle

Abstract

The invention relates to a deformable four-rotor unmanned aerial vehicle, which belongs to the technical field of unmanned aerial vehicles, and comprises a fuselage, four telescopic arms, telescopic motors, rotors and transmission mechanisms, the fuselage is of an unmanned aerial vehicle main body structure, and a control unit is arranged in the fuselage; one ends of the four telescopic arms are connected with the fuselage, and the other ends of the four telescopic arms are connected with the rotor wings; the four telescopic motors are arranged in the positions, corresponding to the telescopic machine arms, in the machine body and used for being connected with the transmission mechanism, receiving instructions of the control unit and controlling the telescopic actions of the telescopic machine arms respectively. And the transmission mechanism is used for converting the rotary motion of the telescopic motor into the linear telescopic motion of the machine arm.

Description

Technical Field

[0001] The invention belongs to the technical field of unmanned aerial vehicles and relates to a deformable four-rotor unmanned aerial vehicle. Background Art

[0002] With the widespread application of drone technology, its value in aerial photography, logistics, rescue and other fields has become increasingly prominent. However, the adaptability of traditional quadcopters in complex environments is obviously insufficient. When flying in narrow spaces or complex terrains, fixed-structure drones have difficulty flexibly adjusting their own size and shape, and are easily restricted by site conditions, resulting in low flight efficiency or even failure to complete the mission. For example, when shuttling between high-rise buildings in the city or rescuing in ruins, drones with fixed arms may not be able to pass smoothly due to space constraints.

[0003] In order to overcome this limitation, there is an urgent need for a drone that can reduce its size through telescopic deformation so that it can flexibly pass through narrow spaces. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a deformable quad-rotor drone.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A deformable quad-rotor drone, comprising a fuselage, four retractable arms, a retractable motor, a rotor and a transmission mechanism;

[0007] The fuselage is the main structure of the drone, and a control unit is arranged inside it;

[0008] There are four retractable arms, one end of each of the four retractable arms is connected to the fuselage, and the other end is connected to the rotor;

[0009] There are four telescopic motors, all of which are arranged in the fuselage at positions corresponding to the telescopic arms, and are used to connect the transmission mechanism, receive instructions from the control unit, and respectively control the telescopic action of each telescopic arm;

[0010] The transmission mechanism is used to convert the rotational motion of the telescopic motor into the linear telescopic motion of the machine arm.

[0011] Furthermore, the telescopic motor is an electric push rod motor, which has high-precision telescopic control capability and can achieve accurate telescopic movement of the machine arm.

[0012] Furthermore, the interior of the telescopic arm is hollow to accommodate the transmission mechanism and wires of the telescopic motor.

[0013] Furthermore, the transmission mechanism includes a gear set and a connecting rod mechanism. The gear set is fixed on the output shaft of the telescopic motor. The rotational motion of the motor is transmitted to the connecting rod mechanism through gear meshing. The connecting rod mechanism converts the rotational motion into linear motion through the connecting rod and the slider to drive the telescopic arm.

[0014] Furthermore, four guide ears corresponding to the positions of the support arms are arranged on the circumference of the fuselage, and ropes are slidably passed through the guide ears for position limiting and guiding.

[0015] Furthermore, the rotor is driven by a motor, which is fixed at the end of the arm, and its installation position and angle are adjustable.

[0016] The beneficial effects of the present invention are:

[0017] 1. Improve adaptability and execution efficiency: The drone of the present invention can perform telescopic deformation of its arms during flight to reduce its size, so that the drone can flexibly pass through narrow spaces, thereby improving the adaptability and execution efficiency of the drone in complex environments.

[0018] 2. Enhance flight stability: When the UAV needs to extend, the telescopic motor is controlled to extend (the motor rotates forward), and the arm is kept in an extended state under the drive of the telescopic motor; when the UAV needs to retract, the telescopic motor is controlled to gradually retract, and the arm gradually retracts inward under the drive of the telescopic motor, so that the overall structure of the UAV shrinks inward and reduces flight resistance.

[0019] 3. Optimize flight performance: Through the telescopic function of the arms, the drone can flexibly adjust its own structure in different flight scenarios to optimize flight performance. In narrow spaces, the retracted arms can reduce the overall size of the drone and improve its passability; in open areas, the extended arms can increase flight stability and improve flight efficiency.

[0020] 4. Improve safety: By sensing the environment in real time and adjusting the flight attitude, the drone can effectively avoid obstacles and ensure flight safety. In complex environments, the telescopic function of the arm enables the drone to better respond to emergencies and improve the safety and success rate of mission execution.

[0021] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0023] Figure 1 This is the internal structure diagram of the deformable quad-rotor drone;

[0024] Figure 2 This is a side view of a deformable quad-rotor drone;

[0025] Figure 3 This is a top view of the deformable quad-rotor drone;

[0026] Figure numerals: 1-fuselage, 2-retractable arm, 3-retractable motor, 4-transmission mechanism, 5-rotor motor mounting base. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0028] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0029] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] The mechanical structure of the deformable quad-rotor drone of the present invention is as follows: Figure 1 , Figure 2 and Figure 3As shown, it mainly includes a fuselage, a retractable arm, a retractable motor, a rotor and a transmission mechanism.

[0031] Fuselage: The fuselage is the main structure of the drone, used to install and fix various components. The fuselage is made of lightweight and high-strength materials, such as carbon fiber composite materials, to ensure the overall strength and lightness of the drone. The internal space of the fuselage is used to accommodate the control unit, power module and other electronic equipment.

[0032] Retractable arms: The drone is equipped with four retractable arms, one end of each arm is connected to the fuselage, and the other end is equipped with a rotor. The retractable function of the arm is achieved through a retractable motor. The structure of the arm is designed to be hollow inside to accommodate the transmission mechanism and wires of the retractable motor. There are multiple mounting holes on the surface of the arm for fixing the rotor and transmission mechanism.

[0033] Telescopic motor:

[0034] The telescopic motor is fixed on the fuselage and connected to the arm through a transmission mechanism. The telescopic motor uses an electric push rod motor with high-precision telescopic control capabilities. The telescopic action of the motor is transmitted to the arm through the transmission mechanism to achieve the telescopic movement of the arm. The telescopic range of the telescopic motor is 50 mm to 300 mm, which can be adjusted according to the needs of the flight scene.

[0035] Rotor: A rotor is installed at the end of each arm to provide lift and thrust for the drone. The rotor is made of lightweight, high-strength material and has good aerodynamic performance. The rotor is driven by a motor that is fixed to the end of the arm. The installation position and angle of the rotor can be adjusted as needed to optimize flight performance.

[0036] Transmission mechanism: The transmission mechanism is used to convert the rotational motion of the telescopic motor into the linear telescopic motion of the machine arm. The transmission mechanism includes a gear set and a connecting rod mechanism. The gear set is fixed to the output shaft of the telescopic motor, and transmits the rotational motion of the motor to the connecting rod mechanism through gear meshing. The connecting rod mechanism converts the rotational motion into linear motion through the connecting rod and the slider, driving the telescopic motion of the machine arm.

[0037] Mechanical structure features:

[0038] Arm retractable function: Through the retractable motor and transmission mechanism, the arm can be retracted to adapt to different flight scenarios. In a narrow space, the arm can be retracted to reduce the overall size of the drone; in an open area, the arm can be unfolded to improve flight stability.

[0039] Lightweight design: The fuselage and arms are made of lightweight and high-strength materials, which reduces the weight of the drone and improves flight efficiency.

[0040] Modular design: The various components of the drone adopt a modular design, which is easy to install, maintain and replace.

[0041] High-precision control: The telescopic motor and transmission mechanism have high-precision control capabilities to ensure smooth and accurate telescopic movement of the machine arm.

[0042] Embodiment 1:

[0043] like Figure 1-Figure 3 As shown, the deformable quad-rotor drone of this solution includes a fuselage 1, a retractable arm 2, a retractable motor 3, a transmission mechanism 4, and a rotor motor mounting seat. The fuselage 1 is the main structure of the drone and is made of a lightweight and high-strength material, such as a carbon fiber composite material. There are four mounting positions evenly arranged around the fuselage 1 for mounting the retractable arm 2.

[0044] One end of the telescopic arm 2 is connected to the fuselage 1, and the other end is equipped with a rotor motor mounting seat 5. The telescopic function of the arm 2 is realized by the telescopic motor 3. The telescopic motor 3 is fixed to the middle of the fuselage 1 and connected to the arm 2 through a transmission mechanism 4. The transmission mechanism 4 includes a gear set and a connecting rod mechanism, which is used to convert the rotational motion of the telescopic motor 3 into the linear telescopic motion of the arm 2.

[0045] The working principle of the drone of this scheme is described in detail below: The drone of this scheme can perform telescopic deformation of the arms during flight to reduce its size, so that the drone can flexibly pass through narrow spaces, thereby improving the adaptability and execution efficiency of the drone in complex environments. Specifically, when the drone needs to be extended, the telescopic motor 3 is controlled to extend (the telescopic motor rotates forward), and the arm 2 is extended horizontally at a uniform speed under the action of the transmission mechanism 4, so that the overall structure of the drone is extended; and when the drone needs to be retracted, the telescopic motor 3 is controlled to gradually extend, and the arm 2 is retracted horizontally at a uniform speed under the action of the transmission mechanism 4, so that the rotor motor mounting seat 5 is gradually retracted, and then the overall structure of the drone is retracted inward.

[0046] The interior of the fuselage 1 can be installed with electrical equipment such as a controller, a GPS locator, a wireless communication device, and a pan / tilt camera according to needs.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A deformable quad-rotor drone, characterized in that: It includes a fuselage, four retractable arms, a retractable motor, a rotor and a transmission mechanism; The fuselage is the main structure of the drone, and a control unit is arranged inside it; There are four retractable arms, one end of each of the four retractable arms is connected to the fuselage, and the other end is connected to the rotor; There are four telescopic motors, all of which are arranged in the fuselage at positions corresponding to the telescopic arms, and are used to connect the transmission mechanism, receive instructions from the control unit, and respectively control the telescopic action of each telescopic arm; The transmission mechanism is used to convert the rotational motion of the telescopic motor into the linear telescopic motion of the machine arm.

2. The deformable quad-rotor drone according to claim 1, characterized in that: The telescopic motor is an electric push rod motor with high-precision telescopic control capability, and can achieve accurate telescopic movement of the machine arm.

3. The deformable quad-rotor drone according to claim 1, characterized in that: The interior of the telescopic arm is hollow to accommodate the transmission mechanism and wires of the telescopic motor.

4. The deformable quad-rotor drone according to claim 1, characterized in that: The transmission mechanism includes a gear set and a connecting rod mechanism. The gear set is fixed on the output shaft of the telescopic motor. The rotational motion of the motor is transmitted to the connecting rod mechanism through gear meshing. The connecting rod mechanism converts the rotational motion into linear motion through the connecting rod and the slider to drive the telescopic arm.

5. The deformable quad-rotor drone according to claim 1, characterized in that: Four guide ears corresponding to the positions of the support arms are arranged on the circumference of the fuselage, and ropes are slidably passed through the guide ears for position limiting and guiding.

6. The deformable quad-rotor drone according to claim 1, characterized in that: The rotor is driven by a motor which is fixed at the end of the arm and the installation position and angle of the motor are adjustable.

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