Wing folding device and unmanned aerial vehicle

Abstract

The utility model discloses a wing folding device and an unmanned aerial vehicle. The wing folding device comprises a driving mechanism rotationally connected to the fixed wing; the fixed part is connected to the fixed wing; the rotating part is connected to the folding wing and is rotationally arranged with the fixed part; the connecting rod transmission mechanism is rotationally arranged with the driving mechanism, the fixed part and the rotating part, so that the rotating part can rotate relative to the fixed part under the driving of the driving mechanism, and the folding wing can be unfolded or folded relative to the fixed wing; the locking mechanism is used for achieving locking between the fixed part and the rotating part when the fixed part and the rotating part are in the folded state or the unfolded state. According to the wing folding device, through driving of the driving mechanism and transmission of the connecting rod transmission mechanism, folding or unfolding of the folding wing connected to the rotating piece relative to the fixed wing connected to the fixed piece can be achieved, and due to the fact that the unmanned aerial vehicle in the folding state is small in occupied size, storage or transportation can be facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field especially relates to a wing folding device and unmanned plane. BACKGROUND

[0002] With the further development of low-altitude economy of our country, the demand of unmanned plane further increases, and the unmanned plane with large wingspan and large aspect ratio is more and more applied to the scene of long endurance and long voyage. However, in this kind of unmanned plane, the wing span size is usually larger than the size of other directions of the unmanned plane, so that the occupied space is large, and it is not easy to store or transport. SUMMARY

[0003] To solve at least one problem existing in the prior art, according to one aspect of the utility model, a wing folding device is provided, comprising:

[0004] A driving mechanism is rotatably connected to a fixed wing.

[0005] A fixed part is connected to the fixed wing.

[0006] A rotating part is connected to a folding wing and is rotatably arranged with the fixed part.

[0007] A connecting rod transmission mechanism is rotatably arranged with the driving mechanism, the fixed part and the rotating part, so that under the driving of the driving mechanism, the rotating part can rotate relative to the fixed part to realize the unfolding or folding of the folding wing relative to the fixed wing.

[0008] A locking mechanism is used to lock the fixed part and the rotating part when they are in a folded state or an unfolded state, so as to realize the locking between the fixed wing and the folding wing in the unfolded state or the folded state.

[0009] In some embodiments, the connecting rod transmission mechanism comprises a first connecting rod and a second connecting rod.

[0010] One end of the first connecting rod is rotatably arranged with the driving mechanism, the other end is rotatably arranged with the rotating part, and the middle part of the first connecting rod is rotatably arranged with one end of the second connecting rod, and the other end of the second connecting rod is rotatably arranged with the rotating part.

[0011] In some embodiments, the first connecting rod comprises a first rotating part and a second rotating part arranged at an acute angle, the first rotating part is rotatably arranged with the driving mechanism, the second rotating part is rotatably arranged with the fixed part, and the connecting point of the first rotating part and the second rotating part is rotatably arranged with one end of the second connecting rod.

[0012] In some embodiments, the driving mechanism comprises a first driving member and a connecting member arranged at one end of the first driving member, and the output end of the first driving member and the connecting member are rotatably arranged with the fixed wing.

[0013] In some embodiments, the connecting member comprises a first connecting rod and a second connecting rod connected by screwing, one end of the first connecting rod is connected with the first driving member, and one end of the second connecting rod is rotatably connected with the fixed wing.

[0014] In some embodiments, the wing folding device further comprises a mounting base and a buffer structure, the mounting base and the buffer structure are both mounted on the fixed wing, the driving mechanism is rotatably connected with the mounting base, and the buffer structure is used for applying an action force to the mounting base in a direction opposite to a disengagement pulling force applied by the driving mechanism to the mounting base.

[0015] In some embodiments, the buffer structure comprises a sleeve rod, an abutting head arranged at one end of the sleeve rod, and an elastic member sleeved on the sleeve rod, and two ends of the elastic member are respectively abutted with the mounting base and the abutting head to apply an elastic force to the mounting base.

[0016] In some embodiments, the locking mechanism is arranged between the fixed member and the rotating member in the unfolded state, and the extending direction is perpendicular to the parallel direction of the fixed member and the rotating member.

[0017] In some embodiments, the wing folding device further comprises a locking piece, the locking piece is connected with the rotating member, and the locking piece is provided with an unfolded locking position corresponding to the unfolded state and a folded locking position corresponding to the folded state.

[0018] The locking mechanism comprises a second driving member and a locking pin, the second driving member is mounted on the fixed member, the locking pin is arranged at the output end of the second driving member, and the locking pin is used for locking the unfolded locking position, the folded locking position and the fixed member respectively.

[0019] In another aspect of the utility model, an unmanned aerial vehicle is provided, which comprises the wing folding device.

[0020] In summary, the wing folding device and the unmanned aerial vehicle have the following technical effects.

[0021] Under the driving of the driving mechanism, the connecting rod transmission mechanism rotates, since the connecting rod transmission mechanism is rotatably arranged with the fixing member and the rotating member respectively, so as to drive the rotating member to rotate relative to the fixing member, in this way, the folding wing connected to the rotating member can be folded or unfolded relative to the fixed wing connected to the fixing member, since the unmanned aerial vehicle in the folded state occupies a small volume, so as to facilitate storage or transportation. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the folding wing relative to the fixed wing in the unfolded state of the unmanned aerial vehicle of the first embodiment of the utility model;

[0023] Figure 2 It is a structure schematic view of the folding wing relative to the fixed wing in the folded state in Figure 1

[0024] Figure 3 It is a structure schematic view of the rotating member and the fixing member in the unfolded state of the wing folding device of the second embodiment of the utility model from a first perspective;

[0025] Figure 4 It is a structure schematic view of the rotating member and the fixing member in the unfolded state from a second perspective in Figure 3

[0026] Figure 5 It is a structure schematic view of the rotating member and the fixing member in the unfolded state from a third perspective in Figure 3

[0027] Figure 6 It is a structure schematic view of the wing folding device in Figure 3

[0028] Figure 7 It is a structure schematic view of the wing folding device in Figure 3

[0029] Figure 8 It is a top view of the wing folding device in Figure 3

[0030] Figure 9 It is a sectional view along the direction A-A in Figure 8

[0031] Figure 10 It is a structure schematic view of the rotating member and the fixing member in the folded state in Figure 3

[0032] Figure 11 It is a structure schematic view of the fixing member and the locking mechanism in Figure 3 ​​​​​​​​​

[0033] Figure 12 Fig. 1 is a structural schematic view of a rotating part in the wing folding device. Figure 3 Fig. 1 is a structural schematic view of a rotating part in the wing folding device.

[0034] The drawings: 100-wing folding device, 10-driving mechanism, 11-first driving part, 111-first cylinder, 112-first piston shaft, 12-connecting part, 121-first connecting rod, 122-second connecting rod, 20-fixing part, 21-first connecting lug, 22-third connecting lug, 23-first plate body, 24-first reinforcing plate, 25-fixing lug, 30-rotating part, 31-second connecting lug, 32-fourth connecting lug, 33-second plate body, 34-second reinforcing plate, 40-linkage driving mechanism, 41-first connecting rod, 411-first end, 412-second end, 413-middle end, 414-first rotating part, 415-second rotating part, 42-second connecting rod, 421-third end, 422-fourth end, 43-first rotating shaft, 44-second rotating shaft, 45-third rotating shaft, 46-fourth rotating shaft, 47-fifth rotating shaft, 50-locking mechanism, 51-second driving part, 511-second cylinder, 512-second piston shaft, 52-lock pin, 60-mounting base, 70-buffer structure, 71-sleeve rod, 72-abutting head, 73-elastic part, 80-locking piece, 81-unfolded locking position, 82-folded locking position, 83-locking lug, 200-fixed wing, 300-folded wing. DETAILED DESCRIPTION

[0035] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the drawings in the embodiments of the present application.

[0036] In the description of the present application, it should be explained that the directions or position relations indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in that the indicated devices or elements must have a specific direction, be constructed and operated in a specific direction.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0038] The present application will be further described in detail below with reference to the drawings.

[0039] Please refer toFigures 1 to 12 The wing folding device 100 provided by the utility model embodiment comprises a driving mechanism 10, a fixing piece 20, a rotating piece 30, a connecting rod transmission mechanism 40 and a locking mechanism 50.

[0040] The driving mechanism 10 is rotationally connected to the fixed wing 200; the fixing piece 20 is connected to the fixed wing 200; the rotating piece 30 is connected to the folding wing 300 and rotationally arranged with the fixing piece 20; the connecting rod transmission mechanism 40 is rotationally arranged with the driving mechanism 10, the fixing piece 20 and the rotating piece 30, so that the rotating piece 30 can rotate relative to the fixing piece 20 under the driving of the driving mechanism 10, thereby realizing the unfolding or folding of the folding wing 300 relative to the fixed wing 200; and the locking mechanism 50 is used for locking between the fixing piece 20 and the rotating piece 30 when the fixing piece 20 and the rotating piece 30 are in the folding unfolding or unfolding state, thereby realizing the locking between the fixed wing 200 and the folding wing 300 in the unfolding state or the folding state.

[0041] The wing folding device 100 described above can rotate the connecting rod transmission mechanism 40 under the driving of the driving mechanism 10, and can drive the rotating piece 30 to rotate relative to the fixing piece 20 due to the rotationally arranged connecting rod transmission mechanism 40 with the fixing piece 20 and the rotating piece 30, so that the folding wing 300 connected to the rotating piece 30 can be folded or unfolded relative to the fixed wing 200 connected to the fixing piece 20. Since the unmanned aerial vehicle in the folded state occupies a small volume, it can be conveniently stored or transported.

[0042] The wing folding device 100 in the unfolded state is shown in Figure 1 , Figures 3 to 9 The wing folding device 100 in the folded state is shown in Figure 10 .

[0043] When the wing folding device 100 is used, the fixing piece 20 is installed in the fixed wing 200 in a fixed manner, and the rotating piece 30 is installed in the folding wing 300 in a fixed manner. The fixing piece 20 and the rotating piece 30 are fixed relative to the fixed wing 200 and the folding wing 300, respectively, and are not movable, and are assembled into a whole by means of bolt connection or welding.

[0044] The connecting rod transmission mechanism 40 is used for receiving the driving force from the driving mechanism 10, so as to rotate and drive the rotating piece 30 to rotate relative to the fixing piece 20.

[0045] Specifically, refer to Figures 6 to 10As shown, it is a structural schematic view of the connecting rod transmission mechanism 40 of the embodiment, the connecting rod transmission mechanism 40 comprises a first connecting rod 41 and a second connecting rod 42; one end of the first connecting rod 41 is rotationally arranged with the driving mechanism 10, the other end is rotationally arranged with the fixed part 20, and the middle part of the first connecting rod 41 is rotationally arranged with one end of the second connecting rod 42, the other end of the second connecting rod 42 is rotationally arranged with the rotating part 30.

[0046] For the convenience of description, the end connected with the driving mechanism 10 of the first connecting rod 41 is defined as the first end 411, the end connected with the fixed part 20 is defined as the second end 412, the middle part connected with the second connecting rod 42 is defined as the middle end 413, the end connected with the first connecting rod 41 of the second connecting rod 42 is defined as the third end 421, and the end connected with the rotating part 30 of the second connecting rod 42 is defined as the fourth end 422. It can be understood that the connecting rod transmission mechanism 40 further comprises a first rotating shaft 43, a second rotating shaft 44, a third rotating shaft 45 and a fourth rotating shaft 46; the first end 411 is rotationally arranged with the driving mechanism 10 through the first rotating shaft 43, the second end 412 is rotationally arranged with the fixed part 20 through the second rotating shaft 44, the middle end 413 and the third end 421 are rotationally arranged through the third rotating shaft 45, and the fourth end 422 is rotationally arranged with the rotating part 30 through the fourth rotating shaft 46. It can be understood that in order to realize the rotational arrangement of the fixed part 20 and the rotating part 30 with the second end 412 and the fourth end 422 respectively, the fixed part 20 is provided with a first connecting lug 21, and the rotating part 30 is provided with a second connecting lug 31; the first connecting lug 21 is rotationally arranged with the second end 412 through the second rotating shaft 44, and the extension direction of the first connecting lug 21 is substantially parallel to the surface of the fixed part 20; the second connecting lug 31 is substantially perpendicular to the surface of the rotating part 30.

[0047] Therefore, when the rotating part 30 needs to be adjusted from the unfolded state to the folded state with the fixed part 20, under the driving of the driving mechanism 10, the connecting point of the first connecting lug 21 and the second end 412 serves as the basic support point, the acting force is transmitted from the first end 411 to the middle end 413, the first end 411 and the middle end 413 both move in the clockwise direction around the second rotating shaft 44 as the center point, the position of the first end 411 gradually lowers, the first connecting rod 41 drives the second connecting rod 42 to rotate, the second connecting rod 42 rotates in the clockwise direction under the pushing of the middle end 413, the rotation of the second connecting rod 42 supports the rotating part 30 with the fifth rotating shaft 47, and the rotating part 30 rotates around the fifth rotating shaft 47, so that the rotating part 30 is folded relative to the fixed part 20. When the rotating part 30 needs to be adjusted from the folded state to the unfolded state with the fixed part 20, the movement direction of the first connecting rod 41 and the second connecting rod 42 is opposite to that when unfolded.

[0048] Understandably, since the folding wing 300 has a certain weight, in order to ensure the stability of the connection of the folding wing 300 relative to the fixed wing 200, the third connecting lug 22 is further arranged on the fixing piece 20, and the fourth connecting lug 32 is further arranged on the rotating piece 30, the third connecting lug 22 and the fourth connecting lug 32 are rotationally arranged through the fifth rotating shaft 47, under the driving of the driving mechanism 10, the rotating piece 30 rotates in the clockwise direction around the fifth rotating shaft 47, so that the folding of the folding wing 300 is realized.

[0049] Further, in order to ensure the stability of the rotation of the folding wing 300 relative to the fixed wing 200, the third connecting lug 22 and the fourth connecting lug 32 are arranged on both sides of the connecting rod transmission mechanism 40 along the width direction of the fixed wing 200 or the folding wing 300, so that the gravity from the folding wing 300 can be dispersed at each position, ensuring the stability of the rotation.

[0050] Further, please refer to Figure 9 In the setting of the first connecting rod 41 of the embodiment, the first connecting rod 41 includes a first rotating part 414 and a second rotating part 415 arranged at an acute angle, the first rotating part 414 and the driving mechanism 10 are rotationally arranged, the second rotating part 415 and the fixing piece 20 are rotationally arranged, the connecting point of the first rotating part 414 and the second rotating part 415 and one end of the second connecting rod 42 are rotationally arranged, the first rotating part 414 has a first end 411, the second rotating part 415 has a second end 412, and the connecting point thereof is an intermediate end 413. Thus, the first connecting rod 41 is arranged in the mode of two parts arranged at an acute angle, compared with the mode of arranging the first connecting rod 41 in an arc shape, when driving the first connecting rod 41 to move, the installation space between the fixing piece 20 and the rotating piece 30 can be saved.

[0051] Please refer to Figures 1 to 10 The structure schematic view of the driving mechanism 10 of the embodiment of the utility model, the driving mechanism 10 includes the first driving piece 11 and the connecting piece 12 arranged at one end of the first driving piece 11, the output end of the first driving piece 11 and the connecting rod transmission mechanism 40 are rotationally arranged, the connecting piece 12 and one end and the fixed wing 200 are rotationally arranged, so that under the driving of the driving mechanism 10, the connecting rod transmission mechanism 40 rotates, and the connecting piece 12 rotates relative to the fixed wing 200, to realize the folding of the folding wing 300, through the arrangement of the connecting piece 12, the connection between the driving mechanism 10 and the fixed wing 200 is facilitated, and the rotation of the driving mechanism 10 relative to the fixed wing 200 can be realized.

[0052] Specifically, the driving mechanism 10 in the embodiment is a first electric cylinder, which comprises a first cylinder body 111 and a first piston shaft 112 arranged on the first cylinder body 111. The first piston shaft 112 is arranged to be capable of stretching and retracting, and the stretching and retracting of the first piston shaft 112 is capable of driving the rotation of the link transmission mechanism 40. In other embodiments, the driving mechanism 10 can also be arranged in a mode of being driven by a motor. The rotation of the motor is capable of driving the rotation of the link transmission mechanism 40 through the output shaft of the motor, so as to realize the folding or unfolding of the folding wing 300. For example, the output shaft of the motor is connected to the first end 411 of the first link 41, and the rotation of the motor is capable of driving the rotation of the link transmission mechanism 40.

[0053] It can be understood that, when the driving mechanism 10 in the embodiment is arranged as the first electric cylinder, the stretching direction of the first electric cylinder can be arranged to be perpendicular to the surface of the fixed part 20 or the rotating part 30, so as to make full use of the space in the skin of the fixed wing 200.

[0054] Further, the driving mechanism 10 and the link transmission mechanism 40 in the embodiment are arranged in the skin of the fixed wing 200, and an opening can be arranged in the skin of the fixed wing 200, and the first piston shaft 112 can be arranged to pass through the opening, so as to realize the connection and transmission with the link transmission mechanism 40.

[0055] Please refer to Figure 9 Since the driving mechanism 10 and the link transmission mechanism 40 can be deviated during installation or processing, in order to ensure the installation accuracy of the driving mechanism 10 and the link transmission mechanism 40 during use, the connecting part 12 comprises a first connecting rod 121 and a second connecting rod 122 which are screw-connected. One end of the first connecting rod 121 is connected to the first driving part 11, and one end of the second connecting rod 122 is connected to the fixed wing 200. Thus, by screwing the first connecting rod 121 and the second connecting rod 122, the installation accuracy of the first driving part 11 and the link transmission mechanism 40 can be adjusted, so as to ensure the smoothness during later use.

[0056] In addition, since the folding wing 300 is folded relative to the fixed wing 200, the folding angle of the folding wing 300 is greater than 90 degrees, and thus the folding wing 300 generates a downward force due to its own gravity, which generates a pulling force on the first driving member 11. In order to protect the first driving member 11, the wing folding device 100 further comprises a mounting seat 60 and a buffer structure 70, both of which are mounted on the fixed wing 200, and the driving mechanism 10 is rotationally connected to the mounting seat 60. The buffer structure 70 is used to apply a force to the mounting seat 60 in the opposite direction of the pulling force when the driving mechanism 10 applies a pulling force to the mounting seat 60, so that the driving mechanism 10 can be mounted through the mounting seat 60, and the buffer structure 70 can be applied to the mounting seat 60. The force in the opposite direction of the pulling force is applied to the mounting seat 60 to offset the pulling force and protect the electric cylinder.

[0057] Specifically, the buffer structure 70 of the present embodiment comprises a sleeve rod 71, an abutting head 72 arranged at one end of the sleeve rod 71, and an elastic member 73 sleeved on the sleeve rod 71. The two ends of the elastic member 73 abut against the mounting seat 60 and the abutting head 72, respectively, to apply an elastic force to the mounting seat 60. When the first driving member 11 applies a pulling force to the mounting seat 60, the mounting seat 60 compresses the elastic member 73, which generates an elastic counterforce in the opposite direction of the pulling force applied by the first driving member 11 to the mounting seat 60, and the two forces offset each other to protect the first driving member 11. In some embodiments, the elastic member 73 is a spring, and in other embodiments, the elastic member 73 can be made of rubber. Specifically, the direction of the pulling force generated by the folding wing 300 is indicated by arrow a in Figure 9 , and the direction of the elastic force generated by the elastic member 73 is indicated by arrow b in Figure 9 .

[0058] It can be understood that in order to ensure the size and uniformity of the applied elastic force, the buffer structure 70 comprises a plurality of sleeve rods 71 and a plurality of elastic members 73, one elastic member 73 and one sleeve rod 71 are arranged one by one and uniformly arranged on the outer periphery of the connecting point of the first driving member 11.

[0059] Please refer to Figure 11 and Figure 12In the embodiment, the fixing member 20 comprises a first plate body 23, a first reinforcing plate 24 arranged on the first plate body 23, and a first connecting lug 21 and a third connecting lug 22 arranged on the first reinforcing plate 24; the rotating member 30 comprises a second plate body 33, a second reinforcing plate 34 arranged on the second plate body 33, and a second connecting lug 31 and a fourth connecting lug 32 arranged on the second reinforcing plate 34, so that when the fixing member 20 and the rotating member 30 are arranged, the first reinforcing plate 24, the first connecting lug 21 and the third connecting lug 22 can be integrally formed and then mounted on the first plate body 23, and the second reinforcing plate 34, the second connecting lug 31 and the fourth connecting lug 32 can be integrally formed and then mounted on the second plate body 33, so as to ensure the structural strength of the fixing member 20 and the rotating member 30 respectively.

[0060] Referring to Figures 3 to 5 and Figure 8 When the locking mechanism 50 is arranged, in order to reasonably utilize the space, the locking mechanism 50 is arranged between the fixing member 20 and the rotating member 30 in the unfolded state, and the extending direction is perpendicular to the parallel direction of the fixing member 20 and the rotating member 30, that is, since the fixing member 20 and the rotating member 30 have a certain space therebetween in the unfolded state, the locking mechanism 50 is arranged in the space, the space is reasonably utilized, and the extending direction of the locking mechanism 50 is arranged in the parallel direction of the fixing member 20 and the rotating member 30, so that the structure of the fixing member 20 or the rotating member 30 does not need to be modified too much, the installation and forming of the entire folding wing mechanism are facilitated, and the installation cost is reduced.

[0061] Specifically, the locking mechanism 50 comprises a second driving member 51, a locking pin 52 and a locking lug 83, the second driving member 51 is mounted on the fixing member 20, the locking pin 52 is arranged at the output end of the second driving member 51, the locking lug 83 is connected to the rotating member 30 and is provided with an unfolded locking position 81 corresponding to the unfolded state and a folded locking position 82 corresponding to the folded state, and the locking pin 52 is used for locking the unfolded locking position 81, the folded locking position 82 and the fixing member 20 respectively, that is, when the rotating member 30 and the fixing member 20 are in the unfolded state, the locking pin 52 locks the fixing member 20 and a locking piece 80 located at the unfolded locking position 81; when the rotating member 30 and the fixing member 20 are in the folded state, the locking pin 52 locks the fixing member 20 and a locking piece 80 located at the folded locking position 82.

[0062] Specifically, the locking piece 80 of the embodiment is arc-shaped and has the same curvature as the arc of rotation of the rotating member 30. The locking piece 80 is driven to rotate by the rotation of the rotating member 30. When the locking piece 80 is connected to the rotating member 30, a locking lug 83 is arranged on the locking piece 80. The length direction of the locking lug 83 is perpendicular to the surface of the locking piece 80, so that the locking lug 83 can be fixed to the surface of the rotating member 30. Further, in order to realize the locking between the folding wing 300 and the fixed wing 200 after folding, the fixed member 20 further comprises a fixing lug 25. The fixing lug 25 is arranged on the first plate body 23 and is located on both sides of the first plate body 23 along the height direction of the first plate body 23. The fixing lug 25 is arranged in cooperation with the locking piece 80 to facilitate the locking of the folding wing 300 after folding relative to the fixed wing 200.

[0063] Specifically, the unfolding locking position 81 and the folding locking position 82 of the embodiment are provided with locking holes for the locking pin 52.

[0064] In the embodiment, the second driving member 51 is a second electric cylinder, which comprises a second cylinder body 511 and a second piston shaft 512 arranged on the second cylinder body 511. The second piston shaft 512 is extended and retracted to drive the locking pin 52 to move in a straight line, so as to push or pull the locking pin 52 into or out of the locking piece 80 and the fixing lug 25.

[0065] It can be understood that due to the production error or installation error between parts, when the second driving member 51 drives the locking pin 52, the locking pin 52 may not be accurately pushed into the fixing lug 25 and the locking position in a straight line. Therefore, when the locking pin 52 is connected to the second piston shaft 512 of the second driving member 51, the two are arranged in rotation to provide a space for the locking pin 52, so as to avoid the situation that the locking pin 52 is stuck when it is pushed to lock.

[0066] The wing folding device 100 has the following advantages: the connecting rod transmission mechanism 40 is arranged to include the first connecting rod 41 and the second connecting rod 42 arranged in rotation, so that the driving force of the driving mechanism 10 is transmitted from the first connecting rod 41 to the second connecting rod 42, thereby realizing the rotation and unfolding or rotation and folding of the rotating part 30 relative to the fixed part 20; the connecting part 12 is arranged between the driving mechanism 10 and the fixed wing 200, so that the driving mechanism 10 is conveniently installed and conveniently arranged in rotation relative to the fixed wing 200; the connecting part 12 includes the threaded first connecting rod 121 and the second connecting rod 122, so that the driving mechanism 10 is conveniently installed and adjusted; the buffer structure 70 is arranged, so that when the driving mechanism 10 applies a separation pulling force to the fixed wing 200, the buffer structure 70 applies an opposite force to the driving mechanism 10, the two forces are offset, and the service life of the driving mechanism 10 is ensured; the locking mechanism 50 is arranged between the fixed part 20 and the rotating part 30 in the unfolded state, so that the space between the two parts is reasonably utilized.

[0067] The utility model discloses still provide a kind of unmanned aerial vehicle in another embodiment, including fixed wing 200, folding wing 300 and above-mentioned wing folding device 100.

[0068] Wherein, fixed part 20 is installed on fixed wing 200, rotating part 30 is installed on folding wing 300, driving mechanism 10 is installed on fixed wing 200, locking mechanism 50 can be installed on fixed wing 200 or folding wing 300 or fixed part 20 or rotating part 30.

[0069] The technical means disclosed in the utility model scheme is not only limited to the technical means disclosed in the above embodiment, but also includes the technical scheme composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. Wing folding device (100), characterized in that The wing folding device (100) comprises: a driving mechanism (10) rotatably connected to a fixed wing (200); a fixed part (20) connected to the fixed wing (200); a rotating part (30) connected to a folding wing (300) and rotatably arranged with the fixed part (20); a connecting rod transmission mechanism (40) rotatably arranged with the driving mechanism (10), the fixed part (20) and the rotating part (30), so that the rotating part (30) can rotate relative to the fixed part (20) under the driving of the driving mechanism (10), to realize the unfolding or folding of the folding wing (300) relative to the fixed wing (200); a locking mechanism (50) for locking the fixed part (20) and the rotating part (30) when they are in a folded state or an unfolded state, to realize the locking between the fixed wing (200) and the folding wing (300) in the unfolded state or the folded state.

2. The wing folding device (100) according to claim 1, wherein: the connecting rod transmission mechanism (40) comprises a first connecting rod (41) and a second connecting rod (42); one end of the first connecting rod (41) is rotatably arranged with the driving mechanism (10), the other end is rotatably arranged with the rotating part (30), and the middle part of the first connecting rod (41) is rotatably arranged with one end of the second connecting rod (42), and the other end of the second connecting rod (42) is rotatably arranged with the rotating part (30).

3. Wing folding device (100) according to claim 2, characterized in that the first connecting rod (41) comprises a first rotating part (414) and a second rotating part (415) arranged at an acute angle, the first rotating part (414) is rotatably arranged with the driving mechanism (10), the second rotating part (415) is rotatably arranged with the fixed part (20), and the connecting point of the first rotating part (414) and the second rotating part (415) is rotatably arranged with one end of the second connecting rod (42).

4. The wing folding device (100) according to any one of claims 1-3, wherein: the driving mechanism (10) comprises a first driving part (11) and a connecting part (12) arranged at one end of the first driving part (11), the output end of the first driving part (11) is rotatably arranged with the connecting rod transmission mechanism (40), and one end of the connecting part (12) is rotatably arranged with the fixed wing (200).

5. Wing folding device (100) according to claim 4, characterized in that the connecting part (12) comprises a first connecting rod (121) and a second connecting rod (122) connected by threads, one end of the first connecting rod (121) is connected with the first driving part (11), and one end of the second connecting rod (122) is rotatably connected with the fixed wing (200).

6. The wing folding device (100) according to any one of claims 1-3, wherein: The wing folding device (100) further comprises a mounting base (60) and a buffer structure (70), the mounting base (60) and the buffer structure (70) are both mounted on the fixed wing (200), the driving mechanism (10) is rotatably connected to the mounting base (60), and the buffer structure (70) is used for applying an action force to the mounting base (60) in a direction opposite to a disengaging pulling force applied by the driving mechanism (10) to the mounting base (60).

7. Wing folding device (100) according to claim 6, characterized in that The buffer structure (70) comprises a sleeve rod (71), an abutting head (72) arranged at one end of the sleeve rod (71), and an elastic member (73) sleeved on the sleeve rod (71), two ends of the elastic member (73) abut against the mounting base (60) and the abutting head (72) respectively, so as to apply an elastic force to the mounting base (60).

8. The wing folding device (100) according to any one of claims 1-3, characterized in that, The locking mechanism (50) is arranged between the fixed part (20) and the rotating part (30) in the unfolded state, and extends in a direction perpendicular to the parallel direction of the fixed part (20) and the rotating part (30).

9. The wing folding device (100) according to claim 8, characterized in that, The wing folding device (100) further comprises a locking piece (80), the locking piece (80) is connected to the rotating part (30), and is provided with an unfolded locking position (81) corresponding to the unfolded state and a folded locking position (82) corresponding to the folded state; The locking mechanism (50) comprises a second driving part (51) and a locking pin (52), the second driving part (51) is mounted on the fixed part (20), the locking pin (52) is arranged at an output end of the second driving part (51), and the locking pin (52) is used for locking the unfolded locking position (81), the folded locking position (82) and the fixed part (20) respectively.

10. A drone, characterized in that The wing folding device (100) according to any one of claims 1-9.

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