A folding wing release and locking mechanism

Abstract

The present invention belongs to the technical field of unmanned aerial vehicles (UAVs) and discloses a folding wing release and locking mechanism, comprising a wing root torsion spring (4), a folding wing connector (6), a wing root tension spring (7), a base (8), a rotating shaft (9), a wing folding locking pin spring (12), a wing root locking pin (13), a sales promoter (14), a locking pin push rod (15), a wing folding locking pin seat (16), a wing tip locking pin (18) and a wing folding locking spring (19). The present invention solves the problem of insufficient torque during the unfolding process of the folding wings of large-sized and heavy UAVs by using a wing root torsion spring-tension spring combination scheme, and effectively controls the unfolding timing of the folding wings by arranging a sales promoter mechanism at the wing tip.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicles (UAVs), and in particular relates to a wing releasing and locking mechanism for a folding-wing UAV. Background Art

[0002] Existing wing deployment mechanisms for drones typically employ torsion springs at the wing root. This structure applies deployment torque only to the wing root, resulting in a relatively low torque, making it suitable only for lightweight and small drones. For larger drones with heavier wings, the torque provided by the torsion springs at the wing root alone is insufficient to reliably deploy the wings. Summary of the Invention

[0003] The purpose of the present invention is to provide a folding wing release and locking mechanism to solve the technical problem that when the size of the UAV is too large and the wings are too heavy, the torque provided by the torsion spring arranged at the wing root alone is insufficient to reliably unfold the wings.

[0004] To achieve the above objectives, the specific technical solutions of the folding wing release and locking mechanism of the present invention are as follows:

[0005] A folding wing release and locking mechanism, comprising a wing root torsion spring 4, a folding wing connector 6, a base 8, a rotating shaft 9, a wing folding locking pin spring 12, a wing root locking pin 13, a pusher 14, a locking pin push rod 15, a wing folding locking pin seat 16, a wingtip locking pin 18 and a wing folding locking spring 19; the base 8 is fixedly connected to the bomb body 2, the two wings 3 are symmetrically arranged on both sides of the bomb body 2, and the wing roots of the two wings 3 are fixedly provided with a folding wing connector 6, the folding wing connector 6 is rotatably connected to the base 8 through the rotating shaft 9 to realize the wing rotation function; the wing root torsion spring 4 is sleeved on the rotating shaft 9, one end of which is connected to the folding wing connector 6, and the other end is connected to the base 8, for providing a torque for the wing to unfold; the two ends of the wing root tension spring 7 are respectively connected to the two The folding wing connector 6 on each wing 3 is fixedly connected; a wing folding locking pin spring 12 is provided on the base 8, and a wing root locking pin 13 is provided at the tip of the wing folding locking pin spring 12, and the wing root locking pin 13 can cooperate with the locking pin hole on the folding wing connector 6; the wing folding locking pin seat 16 is provided at the rear of the bomb body 2, and a wingtip locking pin 18 is provided in the wing folding locking pin seat 16, and a wing folding locking spring 19 is sleeved on the wingtip locking pin 18; the pusher 14 is fixedly provided on the wing folding locking pin seat 16; the locking pin top rod 15 is slidably connected to the wing folding locking pin seat 16, and one end thereof is connected to the pusher 14; the side wall of the locking pin top rod 15 is provided with a hole for cooperating with the wingtip locking pin 18.

[0006] Wherein, a thrust bearing 5 is provided between the rotating shaft 9 and the folding wing connecting member 6 .

[0007] When the wing 3 is in the folded state, one end of the wingtip locking pin 18 is set in the hole of the wingtip of the wing 3, and the other end is set in the wing folding locking pin seat 16 and pressed against the unopened position of the side wall of the locking pin push rod 15.

[0008] It also includes a torsion spring pressure plate 10 and a locking nut 11 , which are arranged at both ends of the rotating shaft 9 .

[0009] During the unfolding process of the wing 3, the wing folding locking pin spring 12 presses the wing root locking pin 13 onto the wing root; when the wing 3 is unfolded into place, the wing folding locking pin spring 12 presses the wing root locking pin 13 into the locking pin hole on the folding wing connector 6, and the wing is locked in place.

[0010] When the two wings 3 are folded and stowed, the wing root tension spring 7 is in a stretched state.

[0011] Preferably, the body 2 is made of a square composite material.

[0012] The folding wing release and locking mechanism of the present invention has the following advantages: through the wing root torsion spring-tension spring combination scheme, the problem of insufficient torque during the deployment process of the folding wings of large-sized and heavy UAVs is solved; by arranging the promoter mechanism at the wing tip, the deployment timing of the folding wings can be effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the projectile structure;

[0014] Figure 2 This is an exploded view of the wing root assembly;

[0015] Figure 3 This is a diagram of the wing root locking pin assembly;

[0016] Figure 4 This is a diagram of the wingtip locking pin assembly;

[0017] Figure 5 This is an exploded view of the wingtip locking pin;

[0018] Figure 6 This is a schematic diagram of the working of the organization;

[0019] Explanation of the markings in the figure: 1. Front bulkhead; 2. Body; 3. Wing; 4. Wing root torsion spring; 5. Thrust bearing; 6. Folding wing connector; 7. Wing root tension spring; 8. Base; 9. Rotating shaft; 10. Torsion spring pressure plate; 11. Locking nut; 12. Wing fold locking pin spring; 13. Wing root locking pin; 14. Pusher; 15. Locking pin push rod; 16. Wing folding locking pin seat; 17. Connecting piece; 18. Wingtip locking pin; 19. Wing folding locking spring. DETAILED DESCRIPTION

[0020] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a folding wing release and locking mechanism of the present invention in conjunction with the accompanying drawings.

[0021] like Figure 1 As shown, the folding wing release and locking mechanism of this embodiment is used to set the wings 3 on the bomb body 2.

[0022] like Figure 2-Figure 5 As shown, the folding wing release and locking mechanism of this embodiment includes a wing root torsion spring 4, a thrust bearing 5, a folding wing connector 6, a wing root tension spring 7, a base 8, a rotating shaft 9, a torsion spring pressure plate 10, a locking nut 11, a wing folding locking pin spring leaf 12, a wing root locking pin 13, a push pin 14, a locking pin push rod 15, a wing folding locking pin seat 16, a connecting piece 17, a wingtip locking pin 18 and a wing folding locking spring 19.

[0023] The base 8 is fixedly connected to the body 2. The two wings 3 are symmetrically arranged on either side of the body 2. Folding wing connectors 6 are fixedly mounted at the wing roots of each wing 3. These folding wing connectors 6 are rotatably connected to the base 8 via a rotating shaft 9, enabling wing rotation. Furthermore, a thrust bearing 5 is provided between the rotating shaft 9 and the folding wing connectors 6. The wing root torsion spring 4 is mounted on the rotating shaft 9, with one end connected to the folding wing connector 6 and the other end connected to the base 8, providing the torque for the wings to unfold. Locking nuts 11 and torsion spring pressure plates 10 are provided at both ends of the rotating shaft 9 to seal the rotating components. The ends of the wing root tension spring 7 are fixedly connected to the folding wing connectors 6 on each wing 3. When the wings 3 are folded and stowed, the wing root tension spring 7 is in a stretched state, providing the unfolding torque. When the wings 3 are unfolded, the wing root tension spring 7 gradually relaxes. Through the rational design of the wing root tension spring 7, the preload torque for wing unfolding is achieved.

[0024] A wing folding locking pin spring 12 is provided on the base 8, and a wing root locking pin 13 is provided at the tip of the wing folding locking pin spring 12. When the wing is unfolded into place, the wing folding locking pin spring 12 presses the wing root locking pin 13 into the locking pin hole on the folding wing connector 6, thereby realizing the function of locking the wing into place when unfolded.

[0025] The wing-folding locking pin seat 16 is disposed at the rear of the bomb body 2. A wingtip locking pin 18 is disposed within the wing-folding locking pin seat 16. A wingtip locking spring 19 is sleeved onto the wingtip locking pin 18. The pusher 14 is fixedly mounted on the wing-folding locking pin seat 16. The locking pin push rod 15 is slidably connected to the wing-folding locking pin seat 16, one end of which contacts the pusher 14 via a connecting piece 17. Furthermore, a hole is formed in the side wall of the locking pin push rod 15. In the folded state, one end of the wingtip locking pin 18 is disposed in the hole in the wingtip of the wing 3, while the other end is disposed within the wing-folding locking pin seat 16 and pressed against an unopened portion of the side wall of the locking pin push rod 15. When the pusher 14 pushes the locking pin push rod 15 open, the wingtip locking pin 18 falls into the hole on the side wall of the locking pin push rod 15 under the action of the wing folding locking spring 19, and one end of the wingtip locking pin 18 disengages from the wing 3, thereby disengaging the wing 3 from the bomb body 2, and the pre-tightening torque of the wing root tension spring 7 causes the wing to unfold from the folded state.

[0026] like Figure 6 As shown, the process of releasing and opening the folding wing and locking mechanism of this embodiment is as follows:

[0027] Initially, the two wings 3 are in a packed state, secured to the body 2 by the wingtip locking pins 18. Subsequently, the pushers 14 on the wingtip locking pins 18 operate, opening the wingtip locking pins 18 and allowing the wings 3 to unfold under the torque provided by the wing root tension springs 7. During the unfolding process, the wing folding locking pin springs 12 press the wing root locking pins 13 against the wing roots. When fully unfolded, the wing folding locking pin springs 12 press the wing root locking pins 13 into the locking pin holes on the folding wing connectors 6, locking the wings in place.

[0028] The body of this embodiment is made of a rectangular composite material, with two wings arranged side by side, nestled snugly beneath the body. A torsion spring-thrust bearing structure provides the torque for wing deployment at the wing root. Pre-positioning pins are embedded in the wing tips, while pushers are embedded in corresponding locations in the body. These pushers control wing deployment, and after deployment, wing root positioning pins ensure the wings are fully deployed.

[0029] This embodiment solves the problem of insufficient torque during the deployment of the folding wings of large-sized and heavy UAVs by using a wing root torsion spring-tension spring combination. By arranging a promoter mechanism at the wing tip, the deployment timing of the folding wings can be effectively controlled.

[0030] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, it is apparent to those skilled in the art that several variations and improvements may be made without departing from the principles of the present invention, and these should also be considered to fall within the scope of protection of the present invention.

Claims

1. A folding wing release and locking mechanism, characterized in that: The invention comprises a wing root torsion spring (4), a folding wing connector (6), a wing root tension spring (7), a base (8), a rotating shaft (9), a wing folding locking pin spring (12), a wing root locking pin (13), a pusher (14), a locking pin push rod (15), a wing folding locking pin seat (16), a wing tip locking pin (18) and a wing folding locking spring (19); The base (8) is fixedly connected to the body (2), the two wings (3) are symmetrically arranged on both sides of the body (2), and the roots of the two wings (3) are fixedly provided with folding wing connectors (6), and the folding wing connectors (6) are rotatably connected to the base (8) via a rotating shaft (9) to realize the wing rotation function; The wing root torsion spring (4) is sleeved on the rotating shaft (9), one end of which is connected to the folding wing connector (6) and the other end is connected to the base (8), and is used to provide a torque for the wing to unfold; the two ends of the wing root tension spring (7) are respectively fixedly connected to the folding wing connectors (6) on the two wings (3); The base (8) is provided with a wing folding locking pin spring (12), the tip of the wing folding locking pin spring (12) is provided with a wing root locking pin (13), and the wing root locking pin (13) can cooperate with a locking pin hole on the folding wing connecting member (6); The wing folding locking pin seat (16) is arranged at the rear of the bomb body (2); a wing tip locking pin (18) is arranged in the wing folding locking pin seat (16); a wing folding locking spring (19) is sleeved on the wing tip locking pin (18); the pusher (14) is fixedly arranged on the wing folding locking pin seat (16); the locking pin push rod (15) is slidably connected to the wing folding locking pin seat (16), and one end of the locking pin push rod (15) is connected to the pusher (14); The side wall of the locking pin push rod (15) is provided with a hole for cooperating with the wingtip locking pin (18).

2. The folding wing release and locking mechanism according to claim 1, characterized in that: A thrust bearing (5) is provided between the rotating shaft (9) and the folding wing connecting member (6).

3. The folding wing release and locking mechanism according to claim 1, characterized in that: When the wing (3) is in a folded state, one end of the wingtip locking pin (18) is arranged in a hole at the wingtip of the wing (3), and the other end is arranged in a wing folding locking pin seat (16) and pressed against a non-opening position on the side wall of the locking pin push rod (15).

4. The folding wing release and locking mechanism according to claim 2, wherein: It also includes a torsion spring pressure plate (10) and a locking nut (11), wherein the locking nut (11) and the torsion spring pressure plate (10) are arranged at both ends of the rotating shaft (9).

5. The folding wing release and locking mechanism according to claim 1, wherein: During the unfolding process of the wing (3), the wing folding locking pin spring (12) presses the wing root locking pin (13) onto the wing root; when the wing (3) is unfolded into place, the wing folding locking pin spring (12) presses the wing root locking pin (13) into the locking pin hole on the folding wing connector (6), and the wing is locked into place.

6. The folding wing release and locking mechanism according to claim 5, characterized in that: When the two wings (3) are folded and stowed, the wing root tension spring (7) is in a stretched state.

7. The folding wing release and locking mechanism according to claim 1, wherein: The body (2) is made of a square composite material.

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