Foldable wing spreading mechanism of unmanned aerial vehicle

Abstract

The foldable wing spreading mechanism of the unmanned aerial vehicle comprises a vehicle body, containing grooves are formed in the two sides of the vehicle body, wing folding mechanisms are arranged in the containing grooves, each wing folding mechanism comprises two movable seats, movable grooves are formed in the two movable seats, and the wing folding mechanisms are arranged in the movable seats. And guide sliding blocks are fixedly connected to the surfaces of one sides of the two movable seats correspondingly, connecting nuts are fixedly connected to the two guide sliding blocks correspondingly, and a two-way lead screw is in threaded connection between the two connecting nuts. According to the foldable wing spreading mechanism of the unmanned aerial vehicle, a driving motor drives a movable seat to move, the movable seat is retracted into a containing groove, in the process, the movable seat moves to drive a folding gear to roll on a fixed rack, the folding gear rolls to drive a connecting arm to rotate, the connecting arm rotates to drive a wing to rotate, and the wing is rotated into the containing groove; the wings are prevented from being located outside the fuselage, and the protection effect on the wings is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles (UAVs), in particular to a foldable wing-spreading mechanism of a UAV. Background Art

[0002] A drone is an unmanned aircraft controlled by a radio remote control device and a self-contained program control device, or operated completely or intermittently autonomously by an onboard computer. Some drones have foldable wings. In existing technologies, the foldable wings remain outside the fuselage after folding, which can easily cause damage to the wings during storage and transportation, and the protection effect on the wings is less than ideal.

[0003] For example, patent publication number CN219313052U specifically discloses a foldable wing for a drone and a drone, comprising a fixed wing and a folding wing. The surface of the fixed wing drives the folding wing to move via a folding mechanism. The folding mechanism comprises a spherical block. The inner cavity of the fixed wing drives an intermittent gear to rotate via a driving assembly. The inner wall of the fixed wing is rotatably connected to a rotating shaft. The utility model relates to the technical field of drones. The foldable wing for a drone and the drone, by starting a folding motor to drive a rotating rod to rotate half a circle, the rotating rod first drives the folding wing to rotate 90° along the surface of the spherical block with a rotating pin as the center through a flip rod. Then, the rotating rod drives the folding wing to rotate 90° along the surface of the spherical block with the folding pin as the center, so that the folding wing can be folded and folded parallel to the fuselage, reducing the external size of the large-wingspan drone when it needs to be stored and transported, effectively improving the practicality of the drone wing and the drone. However, there is a problem that the folding wing is still outside the fuselage after folding, which can easily cause damage to the wing during storage and transportation, and the protection effect of the wing is not ideal. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a foldable wing mechanism for a drone, which solves the problem that the foldable wings are still on the outside of the fuselage after folding, which can easily cause damage to the wings during storage and transportation, and the protection effect on the wings is not ideal.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a foldable wing mechanism of a drone, comprising a fuselage, both sides of which are provided with receiving grooves, and the folding wing mechanism is provided inside the receiving grooves;

[0006] The folding wing mechanism includes two movable seats, each of which is provided with a movable groove, and each of the two movable seats is fixedly connected to a guide slider on one side surface, and each of the two guide sliders is fixedly connected to a connecting nut, and a bidirectional screw rod is threadedly connected between the two connecting nuts, and a driven bevel gear is fixedly connected to the bidirectional screw rod, and a driving bevel gear is provided on one side of the driven bevel gear, and a driving motor is fixedly connected to the end of the driving bevel gear, and a fixed rack is provided between the two movable seats, and support shafts are provided at both ends of one side of the fixed rack, and a folding gear and a connecting arm are fixedly connected to the support shaft, and the end of the connecting arm is fixedly connected to a mounting seat, and the end of the mounting seat is fixedly connected to the wing, and a connecting mechanism is provided between the wing and the mounting seat.

[0007] Preferably, the two guide sliders are slidably connected to the inner wall of the fuselage, and the two movable seats are slidably connected to the inner wall of the fuselage through the guide sliders, so that the movable seat can move with the guide sliders, thereby playing a good guiding role.

[0008] Preferably, the bidirectional screw is provided with two sections of threads in opposite directions, and the bidirectional screw is threadedly connected to the guide slider through two connecting nuts, so that the bidirectional screw can drive the two guide sliders to move toward or away from each other.

[0009] Preferably, the driving bevel gear is meshed with the driven bevel gear, and the output shaft end of the driving motor is connected to the bidirectional screw through the driving bevel gear and the driven bevel gear, so that the driving motor can drive the bidirectional screw to rotate.

[0010] Preferably, the fixed rack is fixedly installed inside the fuselage, and both ends of the fixed rack pass through the movable seat and partially extend into the movable seat, so that the fixed rack can enter the movable seat to drive the folding gear to rotate, and at the same time can play a certain guiding role in the movement of the movable seat.

[0011] Preferably, the connecting arm is rotatably connected to the inner wall of the movable seat through a support shaft, and the folding gear is engaged with the fixed rack, so that the folding gear rolls along the fixed rack, thereby driving the connecting arm to rotate around the support shaft.

[0012] Preferably, a connecting slot is provided on the mounting seat, and the connecting mechanism includes a connecting block and a connecting bolt. The connecting block is fixedly installed on the end of the wing, and a through hole is provided on the wing. The through hole matches the connecting bolt, so that the connecting bolt can pass through the through hole and penetrate the connecting block. The connecting bolt is threadedly connected to the mounting seat, which can facilitate the fixing of the connecting block.

[0013] The utility model provides a foldable wing mechanism for a drone. Compared with the existing technology, it has the following advantages:

[0014] 1. The foldable wing mechanism of the drone drives the movable seat to move by the driving motor, and the movable seat is stored in the accommodation slot. During this process, the movement of the movable seat drives the folding gear to roll on the fixed rack, and the rolling of the folding gear drives the connecting arm to rotate. The rotation of the connecting arm drives the wing to rotate, and the wing is rotated into the accommodation slot to prevent the wing from being outside the fuselage, effectively improving the protection effect of the wing.

[0015] 2. The foldable wing mechanism of the drone can facilitate the replacement of damaged wings by inserting the connecting block into the connecting slot, and then inserting the connecting bolt and tightening it, thereby improving the convenience of inspection and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the folding wing mechanism structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the wing and the fixed rack of the utility model;

[0019] Figure 4 It is a schematic diagram of the connection structure between the wing and the mounting seat of the utility model.

[0020] In the figure: 1. Fuselage; 2. Folding wing mechanism; 201. Movable seat; 202. Guide slider; 203. Connecting nut; 204. Bidirectional screw; 205. Driven bevel gear; 206. Driving bevel gear; 207. Driving motor; 208. Fixed rack; 209. Support shaft; 210. Folding gear; 211. Connecting arm; 212. Mounting seat; 213. Movable slot; 214. Wing; 3. Receiving slot; 4. Connecting slot; 5. Connecting plug; 6. Connecting bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-3The utility model provides a technical solution: a foldable wing mechanism of a UAV, including a fuselage 1, with accommodating grooves 3 on both sides of the fuselage 1, and a folding wing mechanism 2 provided inside the accommodating grooves 3. The folding wing mechanism 2 can be used to partially retract the wings 214 into the accommodating grooves 3 during transportation and storage, preventing the wings 214 from being outside the fuselage 1, thereby effectively improving the protection effect of the wings 214.

[0023] The folding wing mechanism 2 includes two movable seats 201, and the two movable seats 201 are provided with movable grooves 213, so that the connecting arm 211 can be located inside the movable groove 213, so that the connecting arm 211 and the wing 214 can rotate. One side surface of the two movable seats 201 is fixedly connected with a guide slider 202, and the two guide sliders 202 are slidably connected to the inner wall of the fuselage 1, and the two movable seats 201 are slidably connected to the inner wall of the fuselage 1 through the guide sliders 202, so that the movable seat 201 can move with the guide sliders 202, thereby playing a good guiding role and effectively improving the stability of the movement. The two guide sliders 202 are fixedly connected with connecting sliders Nut 203, a bidirectional screw rod 204 is threadedly connected between the two connecting nuts 203, and the bidirectional screw rod 204 is provided with two sections of threads in opposite directions, and the bidirectional screw rod 204 is threadedly connected to the guide slider 202 through the two connecting nuts 203, so that the bidirectional screw rod 204 can drive the two guide sliders 202 to move toward or away from each other, thereby making it easy to unfold and fold the wings 214, and a driven bevel gear 205 is fixedly connected to the bidirectional screw rod 204, and a driving bevel gear 206 is provided on one side of the driven bevel gear 205, and a driving motor 207 is fixedly connected to the end of the driving bevel gear 206, and the driving bevel gear 206 is meshed with the driven bevel gear 205, and the driving motor 207 The output shaft end is connected to the bidirectional screw rod 204 through the active bevel gear 206 and the driven bevel gear 205, so that the drive motor 207 can drive the bidirectional screw rod 204 to rotate, providing power for the movement of the wing 214. A fixed rack 208 is provided between the two movable seats 201. The fixed rack 208 is fixedly installed inside the fuselage 1, and both ends of the fixed rack 208 pass through the movable seat 201 and partially extend into the inside of the movable seat 201, so that the fixed rack 208 can enter the inside of the movable seat 201 to drive the folding gear 210 to rotate, and at the same time can play a certain guiding role in the movement of the movable seat 201. Supports are provided at both ends of one side of the fixed rack 208. Shaft 209, a folding gear 210 and a connecting arm 211 are fixedly connected to the support shaft 209, the connecting arm 211 is rotatably connected to the inner wall of the movable seat 201 through the support shaft 209, the folding gear 210 is engaged with the fixed rack 208, so that the folding gear 210 rolls along the fixed rack 208, thereby driving the connecting arm 211 to rotate around the support shaft 209, the end of the connecting arm 211 is fixedly connected to the mounting seat 212, the end of the mounting seat 212 is fixedly connected to the wing 214, a connecting mechanism is provided between the wing 214 and the mounting seat 212, and the damaged wing 214 can be replaced by using the connecting mechanism, thereby effectively improving the convenience of replacement.

[0024] See also Figure 1 and Figure 4A connecting slot 4 is provided on the mounting seat 212, and the connecting mechanism includes a connecting plug 5 and a connecting bolt 6. The connecting plug 5 is fixedly mounted on the end of the wing 214, and a through hole is provided on the wing 214, which matches the connecting bolt 6, so that the connecting bolt 6 can pass through the through hole and penetrate the connecting plug 5. The connecting bolt 6 is threadedly connected to the mounting seat 212, which can facilitate the fixation of the connecting plug 5. By inserting the connecting plug 5 into the connecting slot 4, and then inserting the connecting bolt 6 and tightening it, the damaged wing 214 can be easily replaced, thereby improving the convenience of maintenance and replacement.

[0025] During operation, the driving motor 207 drives the active bevel gear 206 to rotate, and the rotation of the active bevel gear 206 drives the driven bevel gear 205 to rotate, and the rotation of the driven bevel gear 205 drives the bidirectional screw rod 204 to rotate, and the rotation of the bidirectional screw rod 204 drives the connecting nut 203 to move, and the movement of the connecting nut 203 drives the guide slider 202 to move, and the movement of the guide slider 202 drives the movable seat 201 to move, and the movable seat 201 is stored in the accommodating groove 3. In this process, the movement of the movable seat 201 drives the folding gear 210 to roll on the fixed rack 208, and the rolling of the folding gear 210 drives the connecting arm 211 to rotate, and the rotation of the connecting arm 211 drives the wing 214 to rotate, and the wing 214 is turned to the inside of the accommodating groove 3, preventing the wing 214 from being outside the fuselage 1, thereby effectively improving the protection effect of the wing 214.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A foldable wing mechanism for an unmanned aerial vehicle, comprising a fuselage (1), characterized in that: Both sides of the fuselage (1) are provided with a receiving groove (3), and a folding wing mechanism (2) is provided inside the receiving groove (3); The folding wing mechanism (2) comprises two movable seats (201), each of the two movable seats (201) is provided with a movable groove (213), one side surface of each of the two movable seats (201) is fixedly connected with a guide slider (202), each of the two guide sliders (202) is fixedly connected with a connecting nut (203), a bidirectional screw rod (204) is threadedly connected between the two connecting nuts (203), a driven bevel gear (205) is fixedly connected to the bidirectional screw rod (204), and a driving bevel gear (206) is provided on one side of the driven bevel gear (205). The end of the active bevel gear (206) is fixedly connected to a driving motor (207), a fixed rack (208) is provided between the two movable seats (201), a support shaft (209) is provided at both ends of one side of the fixed rack (208), a folding gear (210) and a connecting arm (211) are fixedly connected to the support shaft (209), the end of the connecting arm (211) is fixedly connected to a mounting seat (212), the end of the mounting seat (212) is fixedly connected to a wing (214), and a connecting mechanism is provided between the wing (214) and the mounting seat (212).

2. The foldable wing mechanism of a drone according to claim 1, characterized in that: The two guide slide blocks (202) are slidably connected to the inner wall of the fuselage (1), and the two movable seats (201) are both slidably connected to the inner wall of the fuselage (1) via the guide slide blocks (202).

3. The foldable wing mechanism of a drone according to claim 1, characterized in that: The bidirectional screw rod (204) is provided with two sections of threads in opposite directions, and the bidirectional screw rod (204) is threadedly connected to the guide slider (202) via two connecting nuts (203).

4. The foldable wing mechanism of a drone according to claim 1, characterized in that: The driving bevel gear (206) is meshed with the driven bevel gear (205), and the output shaft end of the driving motor (207) is transmission-connected to the bidirectional screw rod (204) via the driving bevel gear (206) and the driven bevel gear (205).

5. The foldable wing mechanism of a drone according to claim 1, characterized in that: The fixed rack (208) is fixedly installed inside the fuselage (1), and both ends of the fixed rack (208) penetrate the movable seat (201) and partially extend into the interior of the movable seat (201).

6. The foldable wing mechanism of a drone according to claim 1, characterized in that: The connecting arm (211) is rotatably connected to the inner wall of the movable seat (201) via a supporting shaft (209), and the folding gear (210) is meshed with the fixed rack (208).

7. The foldable wing mechanism of a drone according to claim 1, characterized in that: The mounting seat (212) is provided with a connecting slot (4), and the connecting mechanism comprises a connecting plug block (5) and a connecting bolt (6).

8. The foldable wing mechanism of a drone according to claim 7, characterized in that: The connecting plug block (5) is fixedly mounted on the end of the wing (214), and a through hole is opened on the wing (214), the through hole matches the connecting bolt (6), and the connecting bolt (6) is threadedly connected to the mounting seat (212).

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