A drone wing folding mechanism

By designing a drone wing folding mechanism, the internal rotation folding and limit protection of the wing were realized, solving the problem of large space occupation of traditional drone wings, improving the convenience of transportation and storage, and enhancing structural safety and aerodynamic performance.

CN224576838UActive Publication Date: 2026-07-31NAN JING HAO JUN KE JI YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NAN JING HAO JUN KE JI YOU XIAN GONG SI
Filing Date
2025-09-20
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Traditional drones have fixed or non-folding wings, which results in a large space requirement during transportation and storage, reducing the flexibility of carrying and deployment.

Method used

A drone wing folding mechanism was designed, which folds the four wings inward by rotating them, and uses a limiting structure to ensure stability. Combined with a protective cover, it reduces the risk of component interference and damage.

Benefits of technology

It greatly reduces the storage volume, improves the convenience of transportation and storage, ensures precise folding position, enhances structural safety and aerodynamic performance, extends the service life of the wings, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of unmanned aerial vehicle (UAV) technology and discloses a UAV wing folding mechanism, including a UAV body. A protective cover is provided on the inner wall of the UAV body, and a pull rod is slidably connected to the inner wall of the protective cover. The left end of the pull rod is connected to the UAV body via a buckle assembly for assembling and disassembling the protective cover. Fixed rods are fixedly connected to the four sides of the outer wall of the UAV body. The inner walls of the fixed rods are connected to the wing body via clamp assemblies for rotating and folding the wing body and limiting its position. The outer walls of the wing body are rotatably connected to the inner walls of the fixed rods. This utility model, by rotating and folding the wings inwards on all four sides and limiting their position, can greatly reduce the storage volume, improve transportation and storage convenience, ensure folding accuracy and stability, enhance structural safety, and provide a reasonable folding direction, reducing component interference. It is adaptable to multiple scenarios and balances portability and operational reliability.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV wing folding mechanism. Background Technology

[0002] Drones are widely used in aerial surveying and mapping, agricultural plant protection, power line inspection, logistics and transportation, emergency rescue, security monitoring, environmental monitoring and other fields. They can replace human labor in dangerous or hard-to-reach areas, improve efficiency and reduce costs. They also play an important role in scientific research, film and television, military and other fields. They are efficient and intelligent tools that integrate multiple functions.

[0003] Traditional drones typically have fixed wings or non-folding wings, which results in them taking up a lot of space during transportation and storage, causing many inconveniences in carrying and deployment. For example, in outdoor operation scenarios, operators often need to carry multiple drones and related equipment. Fixed wings or non-folding wings make the drone packaging bulky, increasing the transportation burden and reducing the flexibility of operation. In response to the technical problem of difficulty in folding wings, this application proposes a wing folding mechanism for unmanned aerial vehicles (UAVs). Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies in folding wings, and to propose a wing folding mechanism for drones. By rotating and folding the wings on all four sides inward and limiting their position, the mechanism can greatly reduce the storage volume, improve the convenience of transportation and storage, ensure folding by limiting the position, ensure precise and stable unfolding position, enhance structural safety, and provide a reasonable folding direction to reduce component interference. It is suitable for multiple scenarios and balances portability and operational reliability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A drone wing folding mechanism includes a drone body, a protective cover on the inner wall of the drone body, a pull rod slidably connected to the inner wall of the protective cover, the left end of the pull rod being connected to the drone body via a buckle assembly for assembling and disassembling the protective cover, and fixing rods fixedly connected to the four sides of the outer wall of the drone body. The inner wall of the fixing rods is connected to the wing body via a clamp assembly for rotating and folding the wing body and limiting its position. The outer wall of the wing body is rotatably connected to the inner wall of the fixing rods.

[0006] Furthermore, the caliper assembly includes a limiting groove formed on the outer wall of the wing body, and limiting blocks are slidably connected to the inner walls of the fixing rods, the shape of the limiting blocks matching the limiting groove.

[0007] Furthermore, the inner walls of the fixed rods are all rotatably connected to threaded rods, and the outer walls of the threaded rods are all threadedly connected to the inner walls of the limiting block.

[0008] Furthermore, each of the fixed rods has a knob rotatably connected to its inner wall, a main bevel gear fixedly connected to the top of each knob, a secondary bevel gear meshing with the outer wall of each main bevel gear, and the inner wall of each secondary bevel gear fixedly connected to the outer wall of the threaded rod.

[0009] Furthermore, the buckle assembly includes slots formed on both sides of the inner wall of the drone body, each slot having a locking block on its inner wall. The locking blocks are shaped to fit the slots, and their outer walls are slidably connected to the inner wall of the protective cover.

[0010] Furthermore, a connecting frame is fixedly connected to the left end of the pull rod, and rotating rods are rotatably connected to both sides of the inner wall of the connecting frame. The other end of each rotating rod is rotatably connected to the inner wall of the locking block.

[0011] Furthermore, multiple springs are fixedly connected to the right end of the pull rod, and the other end of each spring is fixedly connected to the inner wall of the protective cover.

[0012] This utility model has the following beneficial effects: In this invention, by rotating and folding the wings on all four sides inward and limiting their position, the storage volume can be greatly reduced, improving the convenience of transportation and storage. The limiting ensures that the folding position is accurate and stable, enhancing structural safety. Moreover, the folding direction is reasonable, reducing component interference, adapting to multiple scenarios, and taking into account both portability and operational reliability.

[0013] In this invention, by setting a protective cover on the upper side of the wing to protect it, scratches or structural damage to the wing can be effectively avoided, thereby ensuring the stability of the wing's aerodynamic performance, reducing the risk of failure caused by damage, extending the wing's service life, reducing maintenance costs, and ensuring the reliability and safety of the drone in flight and folding / storage scenarios. Attached Figure Description

[0014] Figure 1 This is a perspective view of a drone wing folding mechanism proposed in this utility model; Figure 2 This is a cross-sectional view of the UAV body of a UAV wing folding mechanism proposed in this utility model; Figure 3 This is a cross-sectional view of a protective cover for a drone wing folding mechanism proposed in this utility model; Figure 4 This utility model provides a structural diagram of a rotating rod for a drone wing folding mechanism. Figure 5 This is a cross-sectional view of the fixing rod of a drone wing folding mechanism proposed in this utility model; Figure 6This is a cross-sectional view of the limiting block of a drone wing folding mechanism proposed in this utility model.

[0015] Legend: 1. UAV body; 2. Protective cover; 3. Pull rod; 4. Spring; 5. Connecting frame; 6. Rotating rod; 7. Locking block; 8. Locking slot; 9. Fixing rod; 10. Wing body; 11. Knob; 12. Main bevel gear; 13. Secondary bevel gear; 14. Threaded rod; 15. Limiting block; 16. Limiting groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 2-4 As shown, one embodiment of this utility model provides a drone wing folding mechanism, including a drone body 1. Fixed rods 9 are fixedly connected to all four sides of the outer wall of the drone body 1. The outer walls of the wing body 10 are rotatably connected to the inner walls of the fixed rods 9. Multiple limiting grooves 16 are provided on the outer walls of the wing body 10. Limiting blocks 15 are slidably connected to the inner walls of the fixed rods 9, with the shape of the limiting blocks 15 matching the limiting grooves 16. Threaded rods 14 are rotatably connected to the inner walls of the fixed rods 9. The outer walls of the threaded rods 14 are threadedly connected to the inner walls of the limiting blocks 15. A knob 11 is rotatably connected to the inner walls of the fixed rods 9. A main bevel gear 12 is fixedly connected to the top of each knob 11. A secondary bevel gear 13 is meshed with the outer walls of the main bevel gear 12. The inner walls of the secondary bevel gear 13 are fixedly connected to the outer walls of the threaded rods 14, for rotating and folding the wing body 10 and limiting its movement.

[0018] Specifically, when using the wing body 10, first turn the knob 11 and rotate the wing body 10 to make it level with the fixing rod 9. Align the limiting groove 16 on the other side with the limiting block 15, and then turn the knob 11 in the opposite direction to limit the wing body 10. By rotating and folding the wings on all four sides inward and limiting them, the storage volume can be greatly reduced, improving the convenience of transportation and storage. The limiting ensures that the folding position is accurate and stable, enhancing structural safety. Moreover, the folding direction is reasonable, reducing component interference, adapting to multiple scenarios, and taking into account both portability and operational reliability.

[0019] Reference Figure 1 , Figure 5 and Figure 6As shown, a protective cover 2 is provided on the inner wall of the drone body 1. A pull rod 3 is slidably connected to the inner wall of the protective cover 2. Slots 8 are provided on both sides of the inner wall of the drone body 1. Slots 7 are provided on the inner wall of each slot 8. The shape of the slots 7 fits the slots 8. The outer walls of the slots 7 are slidably connected to the inner wall of the protective cover 2. A connecting frame 5 is fixedly connected to the left end of the pull rod 3. Rotating rods 6 are rotatably connected to both sides of the inner wall of the connecting frame 5. The other ends of the rotating rods 6 are rotatably connected to the inner wall of the slots 7. Multiple springs 4 are fixedly connected to the right end of the pull rod 3. The other ends of the springs 4 are fixedly connected to the inner wall of the protective cover 2 for the installation and removal of the protective cover 2.

[0020] Specifically, when disassembling the protective cover 2, simply pull the lever 3 to remove the two side clips 7 from the slots 8, release the restriction on the protective cover 2, and then lift the protective cover 2 upwards to use the drone body 1. By setting the protective cover 2 on the upper side of the wing to protect it, scratches or structural damage to the wing are effectively avoided, thereby ensuring the stability of the wing's aerodynamic performance, reducing the risk of failure due to damage, extending the wing's service life, reducing maintenance costs, and ensuring the reliability and safety of the drone in flight and folding storage scenarios.

[0021] Working principle: First, when it is necessary to fold and rotate the wing body 10, turn the knob 11 at the bottom. The knob 11 drives the main bevel gear 12 to rotate, the main bevel gear 12 drives the secondary bevel gear 13 to rotate, the secondary bevel gear 13 drives the threaded rod 14 on the inner wall to rotate, and the threaded rod 14 drives the limiting block 15 on the outer wall to slide the limiting block 15 inward. Remove the limiting block 15 from the limiting groove 16 to release the limitation on the wing body 10. Then, rotate the wing body 10 inward and bring it close to the UAV body 1 to fold and rotate it. Then reverse the direction. Rotate knob 11 to insert limit block 15 into limit groove 16 to limit the wing body 10, thus completing the folding. Then pull lever 3 to the right. Lever 3 drives connecting frame 5 to slide to the right, and drives rotating rods 6 on both sides of the inner wall to rotate, and drives the locking blocks 7 on both sides to slide inward, retracting the locking blocks 7 into protective cover 2. Insert protective cover 2 into UAV body 1, and shield and protect the wing body 10 on all four sides. After installation, release lever 3. Through spring 4, the locking blocks 7 on both sides are inserted into the locking groove 8, thus completing the installation of protective cover 2, which protects the wing body 10.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wing folding mechanism for a drone, characterized in that, The device includes a drone body (1), with a protective cover (2) on the inner wall of the drone body (1). A pull rod (3) is slidably connected to the inner wall of the protective cover (2). The left end of the pull rod (3) is connected to the drone body (1) through a buckle assembly for the installation and removal of the protective cover (2). Fixing rods (9) are fixedly connected to the four sides of the outer wall of the drone body (1). The inner wall of the fixing rod (9) is connected to the wing body (10) through a clamp assembly for the rotation, folding and limiting of the wing body (10). The outer wall of the wing body (10) is rotatably connected to the inner wall of the fixing rod (9).

2. The wing folding mechanism for a drone according to claim 1, characterized in that: The caliper assembly includes a limiting groove (16) formed on the outer wall of the wing body (10), and the inner wall of the fixing rod (9) is slidably connected to a limiting block (15), the shape of the limiting block (15) matching the limiting groove (16).

3. The wing folding mechanism for a drone according to claim 2, characterized in that: The inner wall of the fixed rod (9) is rotatably connected to the threaded rod (14), and the outer wall of the threaded rod (14) is threadedly connected to the inner wall of the limiting block (15).

4. The wing folding mechanism for a drone according to claim 3, characterized in that: The inner wall of each fixed rod (9) is rotatably connected to a knob (11), the top of each knob (11) is fixedly connected to a main bevel gear (12), the outer wall of each main bevel gear (12) is meshed with a secondary bevel gear (13), and the inner wall of each secondary bevel gear (13) is fixedly connected to the outer wall of the threaded rod (14).

5. The wing folding mechanism for a drone according to claim 1, characterized in that: The buckle assembly includes slots (8) on both sides of the inner wall of the drone body (1). Each slot (8) has a buckle block (7) on its inner wall. The shape of the buckle block (7) matches the slot (8). The outer wall of the buckle block (7) is slidably connected to the inner wall of the protective cover (2).

6. The wing folding mechanism for a drone according to claim 5, characterized in that: The left end of the pull rod (3) is fixedly connected to a connecting frame (5), and both sides of the inner wall of the connecting frame (5) are rotatably connected to rotating rods (6), and the other end of the rotating rods (6) is rotatably connected to the inner wall of the card block (7).

7. The wing folding mechanism for a drone according to claim 5, characterized in that: The right end of the pull rod (3) is fixedly connected to multiple springs (4), and the other end of each spring (4) is fixedly connected to the inner wall of the protective cover (2).