FOLDING WINGS AND UNMANNED AIRCRAFT

Description

TECHNICAL FIELD

[0001] 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

[0002] 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.

[0003] 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.

[0004] 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.

[0005] 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.

[0006] 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.

[0007] 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

[0008] 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.

[0009] 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.

[0010] 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 placed in the sliding chute and is capable of sliding along the sliding chute, and when the first driving device drives the driving plate to rotate, the sliding pin slides along the sliding chute, thereby driving the wingtip to rotate relative to the wing body.

[0011] In an optional manner, the wing body includes a first support frame and a wing housing, the first support frame is accommodated in the wing housing, the wingtip includes a second support frame and a wingtip housing, and the second support frame is accommodated in the wingtip housing; and the rotating shaft is fixed with the first support frame, the rotating shaft is rotatably connected to the second support frame, the first driving device is mounted on the first support frame, and the sliding chute is disposed in the second support frame.

[0012] In an optional manner, the first support frame is provided with first through holes, the second support frame is provided with second through holes, the rotating shaft sequentially passes through the first through holes and the second through holes, wherein the rotating shaft is fixed in the first through holes and is capable of rotating in the second through holes.

[0013] In an optional manner, one end of the rotating shaft is provided with a first snap slot, and the other end of the rotating shaft is provided with a second snap slot; and the tiltable wing further includes a first snap spring and a second snap spring, the first snap spring is in snap connection to the first snap slot and partially protrudes out of the first snap slot, a part, protruding out of the first snap slot, of the first snap spring is abutted against a side, away from the second support frame, of the first support frame, the second snap spring is in snap connection to the second snap slot and partially protrudes out of the second snap slot, and a part, protruding out of the second snap slot, of the second snap spring is abutted against a side, away from the first support frame, of the second support frame.

[0014] In an optional manner, the number of the first through holes is two, and the number of the second through holes is two; the first support frame includes a first connecting rod, a first mounting plate and a second mounting plate, two ends of the first connecting rod are fixed with the first mounting plate and the second mounting plate, respectively, one of the first through holes is disposed in the first mounting plate, and the other first through hole is disposed in the second mounting plate; the second support frame includes a second connecting rod, a third mounting plate and a fourth mounting plate, two ends of the second connecting rod are fixed with the third mounting plate and the fourth mounting plate, respectively, one of the second through holes is disposed in the third mounting plate, and the other second through hole is disposed in the fourth mounting plate; the rotating shaft sequentially passes through the two first through holes and the two second through holes; and the first driving device is mounted on the first mounting plate, the driving shaft of the first driving device is fixed with the driving plate after passing through the second mounting plate, and the sliding chute is disposed in a surface, facing the second mounting plate, of the third mounting plate.

[0015] In an optional manner, an accommodating gap is disposed in a surface, facing the third mounting plate, of the second mounting plate, and when the wing body is flush with the wingtip, the second mounting plate is fitted to the third mounting plate, and the driving plate is accommodated in the accommodating gap.

[0016] In an optional manner, the sliding pin is a cylinder.

[0017] In an optional manner, each of the first support frame and the second support frame is of a truss structure.

[0018] In order to solve the above-mentioned technical problem, another technical solution adopted in an embodiment of the present disclosure is that: an unmanned aerial vehicle is provided as defined by the appended set of claims.

[0019] The embodiments of the present disclosure have the beneficial effects that the cable passes through the rotating shaft and extends to the wing body, and the driving mechanism is separated from the cable, so that the cable can neither be wound around a driving shaft of the driving mechanism with the tilting motion of the driving mechanism, nor be folded and unfolded continuously along the driving shaft of the driving mechanism, and then, the risk that the cable is pulled apart is reduced.BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To describe the technical solutions in specific embodiments of the present disclosure or the prior art more clearly, the accompanying drawings required for describing the specific embodiments or the prior art will be briefly introduced below. In all the accompanying drawings, similar elements or parts are generally marked with similar reference numerals in the accompanying drawings. In the accompanying drawings, all the elements or parts are not necessarily drawn in actual proportions. FIG. 1 is a partial stereogram of a tiltable wing in an embodiment of the present disclosure; FIG. 2 is a partial sectional view of a tiltable wing in an embodiment of the present disclosure; FIG. 3 is an assembly view of a wing body and a rotating shaft in an embodiment of the present disclosure; FIG. 4 is an assembly view of a wingtip, a power device and a rotating shaft in an embodiment of the present disclosure; FIG. 5 is an exploded view of a rotating shaft, a first snap spring and a second snap spring in an embodiment of the present disclosure; FIG. 6 is an enlarged view of part A in FIG. 5 in an embodiment of the present disclosure; FIG. 7 is a schematic assembly view of a rotating shaft and other parts in an embodiment of the present disclosure; FIG. 8 is a partial exploded view of a tiltable wing in an embodiment of the present disclosure; FIG. 9 is a stereogram of a driving device in an embodiment of the present disclosure; FIG. 10 is a partial schematic view of a driving device in an embodiment of the present disclosure; FIG. 11 is a schematic view of another working gesture of a driving device in an embodiment of the present disclosure; FIG. 12 is a schematic view of an unmanned aerial vehicle in an embodiment of the present disclosure; and FIG. 13 is a schematic view of another working gesture of an unmanned aerial vehicle in an embodiment of the present disclosure.

[0021] Reference numerals of parts of a tiltable wing 1 in the accompanying drawings will be described as follows: NameReferenceNameReferencenumeralnumeralWing body10Third mounting plate223Wing housing11Fourth mounting plate224First port cover111Power device30First support frame12Cable40First through hole121Rotating shaft50First connecting rod122First snap slot51First mounting plate123Second snap slot52Second mounting plate124First limiting block53Accommodating gap1241Driving mechanism60NameReference numeralNameReference numeralWingtip20First driving device61Wingtip housing21First driving sheet62Second port cover211First sliding table621Second support frame22First sliding chute63Second through hole221First snap spring70Second connecting rod222Second snap spring80 DETAILED DESCRIPTION

[0022] In order to facilitate understanding the present disclosure, the present disclosure will be described in more details below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when one element is stated as "fixed on" / "mounted on" the other element, it may be directly located on the other element, or there may be one or more centered elements therebetween. When one element is stated as "connected to" the other element, it may be directly connected to the other element, or there may be one or more centered elements therebetween. Directional or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", "vertical" and "horizontal" used in the present specification are directional or positional relationships based on the accompanying drawings, are only intended to facilitate describing the present disclosure and simplifying the description, rather than to indicate or imply that the appointed device or element has to be located in a specific direction or structured and operated in the specific direction so as not to be understood as restrictions on the present disclosure. In addition, terms such as "first" and "second" are for descriptive purposes only, and cannot be understood as indicating or implying the relative importance.

[0023] Unless defined otherwise, all technical and scientific terms used in the present specification have the same meaning as commonly understood by the skilled in the art to which this technology belongs. The terms used in the specification of the present disclosure are only for the purpose of describing the specific embodiments, rather than limiting the present disclosure. The term "and / or" used in the present specification includes any one of one or more relevant listed items and all combinations thereof.

[0024] As shown in FIG. 1 and FIG. 2, the tiltable wing 1 includes a wing body 10, a wingtip 20, a power device 30, a cable 40, a rotating shaft 50, a driving mechanism 60, a first snap spring 70 and a second snap spring 80. The power device 30 is mounted on the wingtip 20; the power device 30 is used for supplying power, the rotating shaft 50 is rotatably connected to the wing body 10 and the wingtip 20, respectively, one end of the cable 40 is connected to the power device 30, the other end of the cable 40 passes through the rotating shaft 50 and extends to the inside of the wing body 10, and the cable 40 supplies electric energy and transfer a signal to the power device 30. The first snap spring 70 and the second snap spring 80 are in snap connection to two ends of the rotating shaft 50, the first snap spring 70 is abutted against the inner surface of the wing body 10, and the second snap spring 80 is abutted against the inner surface of the wingtip 20 to limit the wingtip 20 and the wing body 10, so that the wingtip 20 keeps fitting to the wing body 10 when rotating relative to the wing body 10, and no separation occurs. The driving mechanism 60 is mounted on the wing body 10 and is connected to the wingtip 20, and the wingtip 20 is switchable between a first preset position and a second preset position relative to the wing body 10 under the drive of the driving mechanism 60, so that the power device 30 is switched between a horizontal state and a vertical state.

[0025] For the above-mentioned wing body 10, as shown in FIG. 3, the wing body 10 includes a wing housing 11 and a first support frame 12. The first support frame 12 is accommodated in the wing housing 11, and the first support frame 12 is used for mounting the rotating shaft 50 and the driving mechanism 60.

[0026] The first support frame 12 includes a first connecting rod 122, a first mounting plate 123 and a second mounting plate 124, the first connecting rod 122 is fixed with the first mounting plate 123 and the second mounting plate 124, respectively, the first support frame 12 is of a truss structure, and such a structure mainly bears a greater axial tension or pressure and is uniform in axial force distribution, thereby being capable of reducing the self-weight and improving the rigidity as comparison with a solid web girder structure made of the same material. Each of the first mounting plate 123 and the second mounting plate 124 is provided with a first through hole 121, that is, there are two first through holes 121, one of the first through holes 121 is disposed in the first mounting plate 123, and the other first through hole 121 is disposed in the second mounting plate 124, the two first through holes 121 are used for splicing the rotating shaft 50, one end of the rotating shaft 50 passes through one of the first through holes 121, and the middle of the rotating shaft 50 passes through the other first through hole 121, so that the rotating shaft 50 is fixed on the first mounting plate 123 and the second mounting plate 124. The rotating shaft 50 is borne on the first mounting plate 123 and the second mounting plate 124 at the same time so as to be firmer and more stable.

[0027] In some embodiments, a section of each of the first through holes 121 is of a corner-cut rectangle, and a section of a part 1, spliced in the first through hole 121, of the rotating shaft 50 is also of a corner-cut rectangle, so that the circumferential rotation of the rotating shaft 50 can be limited when the first through holes 121 are matched with the rotating shaft 50, and then, it is more convenient to fix the rotating shaft 50. An accommodating gap 1241 is disposed in a surface, away from the first mounting plate 123, of the second mounting plate 124. The accommodating gap 1241 is used for accommodating parts of elements of the driving mechanism 60.

[0028] It can be understood that the structure of the first support frame 10 is not limited to the above-mentioned structure, and may also be other structures, the number of the first through holes 121 is not limited to be two, and may also be one, for example, the first support frame 10 is a solid supporting block, there is only one first through hole 121, and the first through hole is disposed to pass through the supporting block.

[0029] In some embodiments, the wing housing 11 is provided with a first maintenance port (unshown), the wing body 10 further includes a first port cover 111, the first port cover 111 covers the first maintenance port, the first support frame 12 is located below the first maintenance port, the first maintenance port may be opened or closed by the first port cover 111, and therefore, it is convenient for a user to overhaul the rotating shaft 50 and the driving mechanism 60.

[0030] For the above-mentioned wingtip 20, as shown in FIG. 4, the wingtip 20 includes a wingtip housing 21 and a second support frame 22, and the second support frame 22 is accommodated in the wingtip housing 20.

[0031] The second support frame 22 includes a second connecting rod 222, a third mounting plate 223 and a fourth mounting plate 224, and two ends of the second connecting rod 222 are fixed with the third mounting plate 223 and the fourth mounting plate 224, respectively. Each of the third mounting plate 223 and the fourth mounting plate 224 is provided with a second through hole 221, that is, there are two second through holes 221, one of the second through holes 221 is disposed in the third mounting plate 223, and the other second through hole 221 is disposed in the fourth mounting plate 224. The other end of the rotating shaft 50 passes through the two second through holes 221, and the rotating shaft 50 is capable of rotating relative to the second through holes 221, so that the wingtip housing 21 can rotate around the rotating shaft 50. In some embodiments, a section of each of the second through holes 221 is circular, and a part, spliced in the second through holes 221, of the rotating shaft 50 is also circular, so that the rotating shaft 50 is capable of rotating in the second through holes 221.

[0032] In some embodiments, the wingtip housing 21 is further provided with a second maintenance port (unshown in the figures), the wingtip 20 further includes a second port cover 211, and the second port cover 211 is disposed on the second maintenance port of the wingtip housing 21 and is used for opening or closing the second maintenance port so as to facilitate overhauling elements located in the wingtip 20.

[0033] For the above-mentioned rotating shaft 50, the first snap spring 70 and the second snap spring 80, as shown in FIG. 5 to FIG. 7, one end of the rotating shaft 50 is spliced and fixed in the first through holes 121, the other end of the rotating shaft 50 is spliced in the second through holes 221, and the rotating shaft 50 is capable of rotating in the second through holes 221. One end of the rotating shaft 50 is provided with a first snap slot 51, the other end of the rotating shaft 50 is provided with a second snap slot 52, and the rotating shaft 50 further extends to form two first limiting blocks 53. 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 50 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. The two first limiting blocks 53 have outer contours and are accommodated in the first through holes 121, respectively, and the first limiting blocks 53 are snapped in the first through holes 121, so that the rotating shaft 50 is incapable of rotating relative to the first through holes 121.

[0034] It can be understood that the fixation of the rotating shaft 50 and the first support frame 12 may be achieved by other structures which are not limited to the above-mentioned structure. For example, the first support frame 12 further includes locking levers (unshown in the figures), the number of the locking levers is two, the first mounting plate 123 and the second mounting plate 124 are further provided with fourth through holes (unshown in the figures), the rotating shaft 50 is further provided with fifth through holes (unshown in the figures), the number of each of the fourth through holes and the fifth through holes is four, the fourth through holes are disposed around the first mounting plate 123 and the second mounting plate 124 along the radial direction of the rotating shaft 50, the fifth through holes and the fourth through holes are correspondingly disposed in the rotating shaft 50, the locking lovers crosswise pass through the fourth through holes and the fifth through holes, and splicing parts of the locking levers are of mortise and tenon structures.

[0035] For the above-mentioned driving mechanism 60, as shown in FIG. 8 to FIG. 11, the driving mechanism 60 includes a first driving device 61, a first driving plate 62 and a first sliding chute 63. The first driving device 61 is mounted on the first mounting plate 123, a driving shaft of the first driving device 61 is fixed with the first driving plate 62 after passing through the second mounting plate 124, and the first 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 first driving plate 62 is provided with a first sliding pin 621. The first sliding chute 63 is disposed in a surface, facing the second mounting plate 124, of the third mounting plate 223, the first sliding pin 621 is placed in the first sliding chute 63 and is capable of sliding along the first sliding chute 63, and when the first driving device 61 drives the first driving plate 62 to rotate, the first sliding pin 621 slides along the first sliding chute 63, thereby driving the wingtip 20 to rotate relative to the wing body 10. In some embodiments, the first sliding pin 621 is a cylinder, which is beneficial to the reduction of sliding resistance of the first sliding table 621 in the first sliding chute 63. 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 first driving plate 62 is accommodated in the accommodating gap 1241, so that the tiltable wing 1 is more beautiful.

[0036] It should be noted that, as shown in FIG. 11, the driving mechanism 60 may drive the wingtip 20 to rotate relative to the wing body 10 within any angle ranging from + / -130 DEG based on a horizontal plane which is 0 DEG.

[0037] It can be understood that the mounting manner of the above-mentioned driving mechanism 60 is not limited to the above-mentioned manner, the third mounting plate 223 is further provided with an accommodating slot (unshown in the figures), and the driving mechanism 60 further includes a second driving device (unshown in the figures), a second driving plate (unshown in the figures) and a second sliding chute (unshown in the figures), wherein the second driving plate is further provided with a second sliding pin rate (unshown in the figures), the second driving device is mounted on the fourth mounting plate 224, a driving shaft of the second driving device is fixed with the second driving plate after passing through the fourth mounting plate 224, and the second sliding chute is disposed on a surface, facing the third mounting plate 223, of the second mounting plate 124. When the wing body 10 is flush with the wingtip 20, the second mounting plate 124 is fitted to the third mounting plate 223, the second driving plate is accommodated in the accommodating slot, the second sliding pin is placed in the second sliding chute and is capable of sliding along the second sliding chute, and when the second driving device drives the second driving plate to rotate, the second sliding pin slides along the second sliding chute, thereby driving the wingtip 20 to rotate relative to the wing body 10.

[0038] In particular according to the presently claimed tiltable wing, the cable 40 passes through the through hole in the axial direction of the rotating shaft 50 and extends to the wing body 10, and the driving mechanism 60 is separated from the cable 40, so that the cable 40 can neither be wound around a driving shaft of the driving mechanism 60 with the tilting motion of the driving mechanism 60, nor be folded and unfolded continuously along the driving shaft of the driving mechanism 60, and then, the risk that the cable 40 is pulled apart is reduced.

[0039] An embodiment of the present disclosure further provides an unmanned aerial vehicle, as shown in FIG. 12 and FIG. 13, the unmanned aerial vehicle includes the above-mentioned tiltable wing 1, and the structure and functions of the tiltable wing 1 refer to those in the above-mentioned embodiment so as not to be repeated one by one herein.

[0040] The above descriptions are only embodiments of the present disclosure, but are not hence intended to limit the patent scope of the present disclosure. The scope of the present invention is defined by the appended claims. It should be understood by those of ordinary skill in the art that they may still modify the technical solutions recorded in each of the foregoing embodiments or equivalently substitute parts of technical features therein.

Claims

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.