A tethered advertising aircraft having dual rotors

Abstract

A kind of double-rotor tethered advertising aircraft, including fuselage frame, electronic display screen, propeller mechanism and landing gear mechanism;Fuselage frame adopts plate type configuration;Electronic display screen quantity is two sides, two sides electronic display screen is symmetrically arranged on the front and rear surfaces of fuselage frame;Propeller mechanism quantity is two sets, two sets of propeller mechanism is symmetrically arranged on the top left and right ends of fuselage frame;Landing gear mechanism quantity is two sets, two sets of landing gear mechanism is symmetrically arranged on the bottom left and right ends of fuselage frame.The double-rotor tethered advertising aircraft of the application takes unmanned aerial vehicle as the carrying tool of electronic display screen, compared with the way of carrying electronic display screen on traditional building, can effectively expand the radiation range of advertising, compared with the way of carrying electronic display screen on traditional car, can not be limited by ground road conditions, the observation angle is upward, the objects that can block electronic display screen in the air are greatly reduced, on the basis of increasing the radiation range of advertising, further improve the effect of advertising.

Description

Technical Field

[0001] This invention belongs to the field of unmanned aerial vehicle technology, and in particular relates to a dual-rotor tethered advertising aircraft. Background Technology

[0002] Advertising is a means of publicity that uses a certain form of media to publicly and widely convey information to the public for a specific purpose. Using electronic displays as an information carrier is the most common form of advertising.

[0003] Currently, electronic displays are mainly installed on buildings, and these displays are fixed installations, so the reach of advertising is limited to the area around the building.

[0004] Furthermore, unlike installing electronic displays on buildings, some companies use cars as platforms for their displays to expand the reach of their advertising. Due to the mobility of cars, the position of the displays can be changed in real time, thus expanding the advertising reach. However, the movement of cars is limited by ground and road conditions, and the limited eye-level viewing angle makes the displays easily obstructed by various objects, resulting in poor advertising effectiveness. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides a dual-rotor tethered advertising drone, proposing a design scheme that uses a drone as a carrier for an electronic display screen. Compared with the traditional method of mounting electronic displays on buildings, this can effectively expand the reach of advertising. Compared with the traditional method of mounting electronic displays on cars, it is not limited by ground and road conditions, and the viewing angle is upward. Furthermore, the number of objects in the air that can obstruct the electronic display screen is greatly reduced, further improving the advertising effect on the basis of increasing the reach of advertising.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dual-rotor tethered advertising aircraft, comprising a fuselage frame, an electronic display screen, a propeller mechanism, and a landing gear mechanism; the fuselage frame adopts a plate-type configuration; the electronic display screen consists of two screens, which are symmetrically fixed to the front and rear surfaces of the fuselage frame; the propeller mechanism consists of two sets, which are symmetrically installed at the left and right ends of the top of the fuselage frame; the landing gear mechanism consists of two sets, which are symmetrically installed at the left and right ends of the bottom of the fuselage frame.

[0007] The propeller mechanism includes propeller blades, a flight drive motor, a boom, a tilt bracket, a transition bracket, a tilt drive motor, a rocker arm, and a tie rod. The inner end of the boom is hinged to the fuselage frame, and a boom limiting assembly is provided between the inner end of the boom and the fuselage frame. The transition bracket is fixedly installed on the outer end of the boom. The tilt drive motor is fixedly installed on the transition bracket. The tilt bracket is rotatably connected to the boom. One end of the rocker arm is fixedly connected to the motor shaft of the tilt drive motor, and the other end of the rocker arm is hinged to one end of the tie rod, and the other end of the tie rod is hinged to the tilt bracket.

[0008] The boom limiting assembly includes a limiting post, a pull pin, a limiting frame, a fixed base, and a return spring. One end of the limiting frame is fixedly connected to the inner end of the boom, and the other end of the limiting frame is hinged to the fixed base, which is fixedly connected to the machine frame. A limiting groove is formed on the fixed base, and the limiting post is located within the limiting groove, allowing the limiting post to move freely along the limiting groove. The pull pin passes through the fixed base and is perpendicular to the limiting post, having axial freedom of movement relative to the fixed base, and its top end is fixedly connected to the limiting post. The return spring is fitted onto the pull pin between the limiting post and the fixed base. The swing range of the limiting frame around the hinge point overlaps with a portion of the limiting groove.

[0009] The landing gear mechanism includes a landing gear, a landing gear drive motor, a drive gear, a driven gear, a lead screw, a lead screw nut, a lever, a rotating shaft, and a shift fork. The rotating shaft is rotatably connected to the fuselage frame via a bearing housing. The upper end of the landing gear is fixedly connected to the rotating shaft, and the shift fork is fixedly installed on the top of the landing gear. The landing gear drive motor is fixedly installed on the fuselage frame, and the drive gear is fixedly installed on the motor shaft of the landing gear drive motor. The lead screw is perpendicular to the rotating shaft and is rotatably connected to the fuselage frame via a bearing housing. The driven gear is fixedly installed at the end of the lead screw and meshes with the drive gear. The lead screw nut is fitted onto the lead screw, and one end of the lever is fixedly connected to the lead screw nut, while the other end of the lever is inserted into the shift fork.

[0010] The power supply modes of the aforementioned tethered twin-rotor advertising aircraft are divided into airborne power supply mode and external power supply mode. When using airborne power supply mode, a power battery is installed inside the fuselage frame, and all electrical components inside the tethered twin-rotor advertising aircraft are powered by the power battery. When using external power supply mode, the tethered twin-rotor advertising aircraft is connected to a ground power box via a power cable, and all electrical components inside the tethered twin-rotor advertising aircraft are powered by the ground power box.

[0011] The power supply cable of the dual-rotor tethered advertising aircraft is equipped with an automatic cable retraction box on the ground. One end of the cable in the automatic cable retraction box is connected to the ground power box through an AC / DC power converter, and the other end of the cable in the automatic cable retraction box is connected to the dual-rotor tethered advertising aircraft.

[0012] The beneficial effects of this invention are:

[0013] The present invention relates to a dual-rotor tethered advertising aircraft, which proposes a design scheme that uses drones as carriers for electronic displays. Compared with the traditional method of mounting electronic displays on buildings, this method can effectively expand the reach of advertising. Compared with the traditional method of mounting electronic displays on cars, this method is not limited by ground and road conditions, and the viewing angle is upward. Furthermore, the number of objects in the air that can obstruct the electronic display is greatly reduced, thereby further improving the advertising effect on the basis of increasing the reach of advertising. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a dual-rotor tethered advertising aircraft according to the present invention (view 1);

[0015] Figure 2 This is a schematic diagram (view 1) of a dual-rotor tethered advertising aircraft of the present invention (with the boom in a retracted state after the propellers are removed);

[0016] Figure 3 This is a schematic diagram of the structure of a dual-rotor tethered advertising aircraft according to the present invention (viewpoint two);

[0017] Figure 4 This is a schematic diagram of the structure of a dual-rotor tethered advertising aircraft according to the present invention (viewpoint three);

[0018] Figure 5 This is a schematic diagram (view 4) of the structure of a dual-rotor tethered advertising aircraft (electronic display screen not shown) according to the present invention;

[0019] Figure 6 for Figure 3 Enlarged view of the middle section (I);

[0020] Figure 7 for Figure 4 Enlarged view of Part II;

[0021] Figure 8 for Figure 5 Enlarged view of Part III;

[0022] In the diagram, 1—fuselage frame, 2—electronic display screen, 3—propeller mechanism, 4—landing gear mechanism, 5—propeller blade, 6—flight drive motor, 7—arm, 8—tilt support, 9—adapter support, 10—tilt drive motor, 11—rocker arm, 12—pull rod, 13—limiting post, 14—pull pin, 15—limiting bracket, 16—fixed seat, 17—return spring, 18—limiting slide, 19—landing gear, 20—landing gear drive motor, 21—drive gear, 22—driven gear, 23—lead screw, 24—lead nut, 25—lever, 26—shaft, 27—shift fork. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1-8 As shown, a dual-rotor tethered advertising aircraft includes a fuselage frame 1, an electronic display screen 2, a propeller mechanism 3, and a landing gear mechanism 4. The fuselage frame 1 adopts a plate-type configuration. There are two electronic display screens 2, which are symmetrically fixed to the front and rear surfaces of the fuselage frame 1. There are two sets of propeller mechanisms 3, which are symmetrically installed at the left and right ends of the top of the fuselage frame 1. There are two sets of landing gear mechanisms 4, which are symmetrically installed at the left and right ends of the bottom of the fuselage frame 1.

[0025] The propeller mechanism 3 includes a blade 5, a flight drive motor 6, a boom 7, a tilt bracket 8, a transition bracket 9, a tilt drive motor 10, a rocker arm 11, and a pull rod 12. The inner end of the boom 7 is hinged to the fuselage frame 1, and a boom limiting component is provided between the inner end of the boom 7 and the fuselage frame 1. The transition bracket 9 is fixedly installed on the outer end of the boom 7. The tilt drive motor 10 is fixedly installed on the transition bracket 9. The tilt bracket 8 is rotatably connected to the boom 7. One end of the rocker arm 11 is fixedly connected to the motor shaft of the tilt drive motor 10, and the other end of the rocker arm 11 is hinged to one end of the pull rod 12. The other end of the pull rod 12 is hinged to the tilt bracket 8.

[0026] The boom limiting assembly includes a limiting post 13, a pull pin 14, a limiting frame 15, a fixed base 16, and a return spring 17. One end of the limiting frame 15 is fixedly connected to the inner end of the boom 7, and the other end of the limiting frame 15 is hinged to the fixed base 16. The fixed base 16 is fixedly connected to the frame 1. A limiting groove 18 is formed on the fixed base 16, and the limiting post 13 is located in the limiting groove 18, allowing the limiting post 13 to move freely along the limiting groove 18. The pull pin 14 is inserted through the fixed base 16 and perpendicular to the limiting post 13. The pull pin 14 has axial movement freedom relative to the fixed base 16, and its top end is fixedly connected to the limiting post 13. The return spring 17 is fitted onto the pull pin 14 between the limiting post 13 and the fixed base 16. The swing range of the limiting frame 15 around the hinge point overlaps with a portion of the limiting groove 18.

[0027] The landing gear mechanism 4 includes a landing gear 19, a landing gear drive motor 20, a drive gear 21, a driven gear 22, a lead screw 23, a lead screw nut 24, a lever 25, a rotating shaft 26, and a shift fork 27. The rotating shaft 26 is rotatably connected to the fuselage frame 1 via a bearing seat. The upper end of the landing gear 19 is fixedly connected to the rotating shaft 26. The shift fork 27 is fixedly installed on the top of the landing gear 19. The landing gear drive motor 20 is fixedly installed on the fuselage frame 1. The drive gear 21 is fixedly installed on the motor shaft of the landing gear drive motor 20. The lead screw 23 is perpendicular to the rotating shaft 26 and is rotatably connected to the fuselage frame 1 via a bearing seat. The driven gear 22 is fixedly installed at the end of the lead screw 23 and meshes with the drive gear 21. The lead screw nut 24 is fitted onto the lead screw 23. One end of the lever 25 is fixedly connected to the lead screw nut 24, and the other end of the lever 25 is inserted into the shift fork 27.

[0028] The power supply modes of the aforementioned tethered twin-rotor advertising aircraft are divided into airborne power supply mode and external power supply mode. When using airborne power supply mode, a power battery is installed inside the fuselage frame 1, and all electrical components inside the tethered twin-rotor advertising aircraft are powered by the power battery. When using external power supply mode, the tethered twin-rotor advertising aircraft is connected to a ground power box via a power cable, and all electrical components inside the tethered twin-rotor advertising aircraft are powered by the ground power box.

[0029] The power supply cable of the dual-rotor tethered advertising aircraft is equipped with an automatic cable retraction box on the ground. One end of the cable in the automatic cable retraction box is connected to the ground power box through an AC / DC power converter, and the other end of the cable in the automatic cable retraction box is connected to the dual-rotor tethered advertising aircraft.

[0030] The following describes a single use of the present invention with reference to the accompanying drawings:

[0031] In this embodiment, the controller model of the dual-rotor tethered advertising aircraft is Pixhawk 2.4.8, and the electronic display screen 2 is an LED display screen.

[0032] The following explanation is based on the initial state where the rotor blades are removed and the boom is in the retracted state. When the tethered twin-rotor advertising aircraft needs to be activated, the boom 7 first needs to be adjusted from the retracted state to the deployed state. At this time, pull the pin 14 backward to move the limiting post 13 from the outer end of the limiting slide 18 to the inner end, and the return spring 17 is in the compressed state. Maintain this state, then flip the drooping boom 7 upward to the horizontal state. Then release the pin 14. Under the spring thrust of the return spring 17, the limiting post 13 returns from the inner end of the limiting slide 18 to the outer end, and the pin 14 also resets simultaneously. At this time, the limiting post 13 can be just locked above the limiting frame 15 to prevent the limiting frame 15 from continuing to flip, thereby keeping the boom 7 in the horizontal state.

[0033] After the boom 7 is adjusted to the deployed state, the propeller 5 is reattached to the flight drive motor 6. Then, the power supply of the dual-rotor tethered advertising aircraft is turned on, and the electronic display screen 2 is lit up to ensure that the electronic display screen 2 can play video advertisements normally.

[0034] Once the above preparation and debugging work is completed, start the flight drive motor 6 to drive the propeller blades 5 to rotate at high speed and generate flight lift. Under the flight lift of the propeller blades 5, the dual-rotor tethered advertising aircraft leaves the ground and gradually rises into the air until the altitude reaches the predetermined height. Then, control the dual-rotor tethered advertising aircraft to hover at the predetermined altitude.

[0035] After the tethered twin-rotor advertising aircraft leaves the ground, the landing gear 19 can be retracted to maintain its aesthetic appeal. First, the landing gear drive motor 20 is started, which drives the drive gear 21 to rotate, which in turn drives the driven gear 22 to rotate. The rotating driven gear 22 drives the lead screw 23, and the rotational motion of the lead screw 23 is converted into the linear movement of the lead screw nut 24. The lead screw nut 24 then drives the lever 25 to move synchronously, which in turn drives the fork 27 to swing. Finally, the landing gear 19 rotates around the pivot 26 until the landing gear 19 changes from a vertical state to a horizontal state and is finally retracted into the fuselage frame 1 for concealment.

[0036] In addition to hovering mode, the tethered twin-rotor advertising aircraft can also select a cruise mode. When the tethered twin-rotor advertising aircraft needs to move forward or backward, the tilt drive motor 10 can be activated. The tilt drive motors 10 in both propeller mechanisms 3 rotate in the same direction. The tilt drive motor 10 drives the rocker arm 11 to swing, which in turn drives the pull rod 12 to move. Finally, the pull rod 12 drives the tilt support 8 to rotate around the arm 7, causing the axis of the flight drive motor 6 to deflect. Finally, the component force output by the deflected propeller blades 5 drives the tethered twin-rotor advertising aircraft to move forward or backward.

[0037] When the tethered dual-rotor advertising aircraft needs to rotate in place, the driving mode is basically the same as when it moves forward and backward. The difference is that the tilt drive motors 10 in the two propeller mechanisms 3 rotate in opposite directions. Therefore, the output force of the two blades 5 is also in opposite directions, which can eventually drive the tethered dual-rotor advertising aircraft to rotate in place.

[0038] When the tethered twin-rotor advertising aircraft needs to move left or right, the tilt drive motors 10 in the two propeller mechanisms 3 do not change direction. Only the output power of the tilt drive motor 10 on one side needs to be slightly reduced so that the lift output of the blades 5 on both sides is different. Then, the lift difference causes the tethered twin-rotor advertising aircraft to tilt left or right, thereby achieving left and right movement in the tilted left or right attitude.

[0039] When the tethered twin-rotor advertising aircraft is in cruise mode, the onboard power supply mode is activated, and the onboard power battery provides power to the tethered twin-rotor advertising aircraft. The flight time in this mode is relatively short.

[0040] When the tethered dual-rotor advertising aircraft is in hovering mode, the external power supply mode is activated, and the ground power supply box provides power to the tethered dual-rotor advertising aircraft. The ground power supply box first outputs 220V AC power, which is converted into high-voltage DC power after being output by AC / DC power converter. The tethered dual-rotor advertising aircraft can obtain high-voltage DC power online for a long time, and the flight time in this mode is long.

[0041] When the tethered twin-rotor advertising aircraft needs to end its aerial advertising display, it first reduces the power of the flight drive motor 6, and then gradually reduces the lift generated by the rotor blades 5. Before the tethered twin-rotor advertising aircraft descends, it controls the landing gear 19 to re-deploy, and then controls the twin-rotor tethered advertising aircraft components to descend until the landing gear 19 touches the ground. Then, it shuts off the flight drive motor 6, removes the rotor blades 5, and readjusts the boom 7 to the retracted state. If the electronic display screen 2 needs to maintain normal video advertising playback, the tethered twin-rotor advertising aircraft can be used as a ground advertising platform at this time.

[0042] The solutions described in the embodiments are not intended to limit the scope of patent protection of this invention. All equivalent implementations or modifications that do not depart from the scope of this invention are included in the patent scope of this case.

Claims

1. A dual-rotor tethered advertising aircraft, characterized in that: The system includes a fuselage frame, electronic displays, a propeller mechanism, and a landing gear mechanism. The fuselage frame adopts a plate-type configuration. There are two electronic displays, which are symmetrically fixed to the front and rear surfaces of the fuselage frame. There are two sets of propeller mechanisms, which are symmetrically installed at the left and right ends of the top of the fuselage frame. There are two sets of landing gear mechanisms, which are symmetrically installed at the left and right ends of the bottom of the fuselage frame. The propeller mechanism includes propeller blades, a flight drive motor, a boom, a tilting bracket, a transition bracket, a tilting drive motor, a rocker arm, and a tie rod. The inner end of the boom is hinged to the fuselage frame, and a boom limiting assembly is provided between the inner end of the boom and the fuselage frame. The transition bracket is fixedly installed on the outer end of the boom. The tilting drive motor is fixedly installed on the transition bracket. The tilting bracket is rotatably connected to the boom. One end of the rocker arm is fixedly connected to the motor shaft of the tilting drive motor, and the other end of the rocker arm is hinged to one end of the tie rod, and the other end of the tie rod is hinged to the tilting bracket. The boom limiting assembly includes a limiting post, a pull pin, a limiting frame, a fixed base, and a return spring. One end of the limiting frame is fixedly connected to the inner end of the boom, and the other end of the limiting frame is hinged to the fixed base, which is fixedly connected to the machine frame. A limiting groove is formed on the fixed base, and the limiting post is located within the limiting groove, allowing it to move freely along the groove. The pull pin passes through the fixed base and is perpendicular to the limiting post, having axial freedom of movement relative to the fixed base. The top end of the pull pin is fixedly connected to the limiting post. The return spring is fitted onto the pull pin between the limiting post and the fixed base. The swing range of the limiting frame around the hinge point overlaps with a portion of the limiting groove. The landing gear mechanism includes a landing gear, a landing gear drive motor, a drive gear, a driven gear, a lead screw, a lead screw nut, a lever, a rotating shaft, and a shift fork. The rotating shaft is rotatably connected to the fuselage frame via a bearing housing. The upper end of the landing gear is fixedly connected to the rotating shaft, and the shift fork is fixedly installed on the top of the landing gear. The landing gear drive motor is fixedly installed on the fuselage frame, and the drive gear is fixedly installed on the motor shaft of the landing gear drive motor. The lead screw is perpendicular to the rotating shaft and is rotatably connected to the fuselage frame via a bearing housing. The driven gear is fixedly installed at the end of the lead screw and meshes with the drive gear. The lead screw nut is fitted onto the lead screw, and one end of the lever is fixedly connected to the lead screw nut, while the other end of the lever is inserted into the shift fork.

2. The dual-rotor tethered advertising aircraft according to claim 1, characterized in that: The power supply modes of the aforementioned tethered twin-rotor advertising aircraft are divided into airborne power supply mode and external power supply mode. When using airborne power supply mode, a power battery is installed inside the fuselage frame, and all electrical components inside the tethered twin-rotor advertising aircraft are powered by the power battery. When using external power supply mode, the tethered twin-rotor advertising aircraft is connected to a ground power box via a power cable, and all electrical components inside the tethered twin-rotor advertising aircraft are powered by the ground power box.

3. A dual-rotor tethered advertising aircraft according to claim 2, characterized in that: The power supply cable of the dual-rotor tethered advertising aircraft is equipped with an automatic cable retraction box on the ground. One end of the cable in the automatic cable retraction box is connected to the ground power box through an AC / DC power converter, and the other end of the cable in the automatic cable retraction box is connected to the dual-rotor tethered advertising aircraft.

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