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EP-4316982-B1 - TILTABLE WING AND UNMANNED AERIAL VEHICLE

EP4316982B1EP 4316982 B1EP4316982 B1EP 4316982B1EP-4316982-B1

Inventors

  • LIU, QIANG

Dates

Publication Date
20260506
Application Date
20220330

Claims (9)

  1. A tiltable wing (1) configured for being applied to an unmanned aerial vehicle, comprising: a wing body (10); a wingtip (20); a power device (30) mounted on the wingtip (20); a cable (40), one end of the cable (40) being connected to the power device (30); a rotating shaft (50) rotatably connected to the wing body (10) and the wingtip (20), respectively, a through hole being disposed in an axial direction of the rotating shaft (50), and an other end of the cable (40) passing through the through hole and extending to an inside of the wing body (10); and a driving mechanism (60) configured to drive the wingtip (20) to rotate with the rotating shaft (50) as an axis so that the power device (30) is switchable between a first preset position and a second preset position relative to the wing body (10); characterized in that the driving mechanism (60) comprises a first driving device (61), a driving plate (62) and a sliding chute (63); the first driving device (61) is mounted on the wing body (10), the sliding chute (63) is disposed in the wingtip (20), a driving shaft of the first driving device (61) is connected to the driving plate (62), the driving plate (62) is perpendicular to the driving shaft of the first driving device (61), a surface, away from the first driving device (61), of the driving plate (62) is provided with a sliding pin (621), the sliding pin (621) is placed in the sliding chute (63) and is capable of sliding along the sliding chute (63), and when the first driving device (61) drives the driving plate (62) to rotate, the sliding pin (621) slides along the sliding chute (63), thereby driving the wingtip (20) to rotate relative to the wing body (10).
  2. The tiltable wing (1) according to claim 1, characterized in that the wing body (10) comprises a first support frame (12) and a wing housing (11), the first support frame (12) is accommodated in the wing housing (11), the wingtip (20) comprises a second support frame (22) and a wingtip housing (21), and the second support frame (22) is accommodated in the wingtip housing (21); and the rotating shaft (50) is fixed with the first support frame (12), the rotating shaft (50) is rotatably connected to the second support frame (22), the first driving device (61) is mounted on the first support frame (12), and the sliding chute (63) is disposed in the second support frame (22).
  3. The tiltable wing (1) according to claim 2, characterized in that the first support frame (12) is provided with first through holes (121), the second support frame (22) is provided with second through holes (221), the rotating shaft (50) sequentially passes through the first through holes (121) and the second through holes (221), wherein the rotating shaft (50) is fixed in the first through holes (121) and is capable of rotating in the second through holes (221).
  4. The tiltable wing (1) according to claim 3, characterized in that one end of the rotating shaft (50) is provided with a first snap slot (51), and an other end of the rotating shaft (50) is provided with a second snap slot (52); and the tiltable wing (1) further comprises a first snap spring (70) and a second snap spring (80), the first snap spring (70) is in snap connection to the first snap slot (51) and partially protrudes out of the first snap slot (51), a part, protruding out of the first snap slot (51), of the first snap spring (70) is abutted against a side, away from the second support frame (22), of the first support frame (12), the second snap spring (80) is in snap connection to the second snap slot (52) and partially protrudes out of the second snap slot (52), and a part, protruding out of the second snap slot (52), of the second snap spring (80) is abutted against a side, away from the first support frame (12), of the second support frame (22).
  5. The tiltable wing (1) according to claim 4, characterized in that a number of the first through holes (121) is two, and a number of the second through holes (221) is two; the first support frame (12) comprises a first connecting rod (122), a first mounting plate (123) and a second mounting plate (124), two ends of the first connecting rod (122) are fixed with the first mounting plate (123) and the second mounting plate (124), respectively, one of the first through holes (121) is disposed in the first mounting plate (123), and an other of the first through hole (121) is disposed in the second mounting plate (124); the second support frame (22) comprises a second connecting rod (222), a third mounting plate (223) and a fourth mounting plate (224), two ends of the second connecting rod (222) are fixed with the third mounting plate (223) and the fourth mounting plate (224), respectively, one of the second through holes (221) is disposed in the third mounting plate (223), and an other of the second through hole (221) is disposed in the fourth mounting plate (224); the rotating shaft (50) sequentially passes through the two first through holes (121) and the two second through holes (221); and the first driving device (61) is mounted on the first mounting plate (123), the driving shaft of the first driving device (61) is fixed with the driving plate (62) after passing through the second mounting plate (124), and the sliding chute (63) is disposed in a surface, facing the second mounting plate (124), of the third mounting plate (223).
  6. The tiltable wing (1) according to claim 5, characterized in that an accommodating gap (1241) is disposed in a surface, facing the third mounting plate (223), of the second mounting plate (124), and when the wing body (10) is flush with the wingtip (20), the second mounting plate (124) is fitted to the third mounting plate (223), and the driving plate (62) is accommodated in the accommodating gap (1241).
  7. The tiltable wing (1) according to any one of claims 1 to 6, characterized in that the sliding pin (621) is a cylinder.
  8. The tiltable wing (1) according to any one of claims 2 to 6, characterized in that each of the first support frame (12) and the second support frame (22) is a truss structure.
  9. An unmanned aerial vehicle, characterized by comprising the tiltable wing (1) according to any one of claims 1 to 8.

Description

TECHNICAL FIELD Embodiments of the present disclosure relate to the technical field of unmanned aerial vehicles, in particular to a tiltable wing and an unmanned aerial vehicle. BACKGROUND At present, a horizontal fixed-wing aircraft has been capable of completing high-speed and stable long-distance navigation, but it has to slide for a long distance to obtain a higher initial speed for take-off, so that there is a high demand on a take-off site, and at the same time, the horizontal fixed-wing aircraft will have the disadvantages of speed loss and incapability of achieving vertical take-off and landing or hovering. A vertical fixed-wing aircraft has the advantages of vertical take-off and landing, hovering in the air, and no need for complex take-off conditions, but it has the disadvantage of incapability of achieving high-speed and high-efficiency navigation. In order to achieve vertical take-off and landing, hovering in the air and high-speed and high-efficiency navigation, a wing-tiltable unmanned aerial vehicle has appeared. The wing-tiltable unmanned aerial vehicle is equipped with a tilting motor on each wing, and the tilting motor drives a power device to rotate, so that the power device is capable of rotating in horizontal and vertical directions. It was found by the inventor in a process of implementing embodiments of the present disclosure that: at present, a cable for supplying power to the power device in the wing-tiltable unmanned aerial vehicle is disposed along a rotating shaft of the tilting motor, and when the tilting motor rotates, the cable will be wound around the rotating shaft of the tilting motor, and be folded and unfolded continuously along the rotating shaft of the tilting motor, so that the cable is easily pulled apart. CN 110371287 A discloses a tilt-rotor UAV comprises a fuselage, two main wings, and two tilting wing mechanisms, two main wings arranged on either side of the fuselage, and two tilt-wing mechanisms arranged on the ends of two main wings, each tilting wing mechanism includes a first propeller mechanism, by setting the tilting shaft as a hollow structure, the power supply wire and data transmission line from the fuselage to the tilting wing mechanism can be arranged in tilting shaft, and the steering gear drives the mounting housing, and then drives the tilting wing and the first propeller mechanism to tilt relative to the main wing. CN 109436314 A discloses an unmanned aerial vehicle comprising a fuselage, a wing connected to the fuselage, a tiltrotor assembly mounted on the wing and rotatable to a first or second position relative to the fuselage, a rotor assembly arranged on the nose and/or tail of the aircraft, and the tiltrotor assembly rotates to the first position providing lift for the unmanned aerial vehicle or rotates to the second position providing the thrust for sustained flight of the unmanned aerial vehicle. CN 112009674 A discloses a tilting wing mechanism comprising a fixed wing and a rotary wing respectively arranged at both ends of the fixed wing, the rotary wing comprises the first wing, the second wing, the fixed wing and the first wing are rotationally connected, the fixed wing and the second wing are rotationally connected, the tilting wing mechanism also comprises a rotating power unit that drives the rotating wing to rotate relative to the fixed wing, the first wing is provided with a first motor, the second wing is provided with a second motor. US 2020062383 A1 discloses an aircraft convertible between fixed-wing and hovering orientations comprising a fuselage, a main wing pair comprising two opposing wings attached to the fuselage, a first propulsor mounted to the movable wing section of each of the two opposing wings, and a first rotation mechanism attached to the fixed wing section and movable wing section of each of the two opposing wings, the first rotation mechanism configured to rotate the movable wing section between a first movable wing section position parallel to the fixed wing section and a second movable wing section position perpendicular to the fixed wing section. SUMMARY The technical problem to be mainly solved in embodiments of the present disclosure is to provide a tiltable wing and an unmanned aerial vehicle, by which the above-mentioned problem is overcome or at least partially solved. In order to solve the above-mentioned technical problem, a technical solution adopted in an embodiment of the present disclosure is that: a tiltable wing is provided as defined by the appended set of claims. According to the presently claimed invention, the driving mechanism includes a first driving device, a driving plate and a sliding chute; the first driving device is mounted on the wing body, the sliding chute is disposed in the wingtip, a driving shaft of the first driving device is connected to the driving plate, a surface, away from the first driving device, of the driving plate is provided with a sliding pin, the sliding pin is pla