Unmanned aerial vehicle arm folding mechanism

By using a folding structure connecting the carbon fiber tube to the outer shell and a pluggable design for the plug body, the problem of complex existing folding structures for drone arms is solved, enabling convenient folding and stability of drone arms and meeting diverse usage needs.

CN223835831UActive Publication Date: 2026-01-27ZHUHAI SVFFI AVIATION CO LTD
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Patent Information

Application Number
CN202521040253.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-26
Publication Date
2026-01-27
Estimated Expiration
2035-05-26

AI Technical Summary

Technical Problem

Existing arm folding structures are complex and not quick to implement, affecting the ease of use and system stability of drones.

Method used

The carbon fiber tube is connected to the outer shell through a folding structure. Combined with the plug-in design of the plug body and the adjustment of the telescopic rod, the arm can be flexibly folded and unfolded, ensuring that the equipment can work independently and be easily maintained.

Benefits of technology

It improves the ease of maintenance of the drone arm and the stability of the system, meeting the needs of different usage scenarios.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223835831U_ABST
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Abstract

The utility model relates to the technical field of arms, and discloses an unmanned aerial vehicle arm folding mechanism which comprises a carbon fiber tube and a shell, the carbon fiber tube is connected with the shell through a folding structure, a plurality of plug bodies are arranged on the inner side of the shell, the plug bodies are installed on the inner side of a clamping plate, and the four corners of the clamping plate are connected with the shell through screws. The folding structure comprises first clamping grooves and rivets, fixing blocks are installed on the two sides of the outer wall of the shell, the first clamping grooves are formed in the two sides of the right end of the carbon fiber tube, the right side of the outer wall of the carbon fiber tube is connected with a tube body through the rivets, a hoop is installed on the left side of the outer wall of the tube body, and fifth rotating shafts are installed on the upper side and the lower side of the tube body. The fifth rotating shaft above is connected with a telescopic rod through a first rotating shaft; the unmanned aerial vehicle arm folding and unfolding mechanism achieves efficient folding and unfolding of the vehicle arm, meanwhile has good stability and convenience, and is suitable for being applied to unmanned aerial vehicles in various complex environments.
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Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, specifically a folding mechanism for the robotic arm of a drone. Background Technology

[0002] Currently, drone technology is developing rapidly, and its applications in aerial photography, monitoring, and reconnaissance are becoming increasingly widespread and urgent. Multi-rotor drones, with their advantages such as hovering and docking capabilities, convenient and quick takeoff and landing, and stable flight, are attracting more attention from developers.

[0003] Most existing folding arm structures fail to achieve the desired speed due to their complex or time-consuming implementation methods. To address this issue, we propose a folding arm mechanism for unmanned aerial vehicles (UAVs). Utility Model Content

[0004] The purpose of this invention is to provide a folding mechanism for the arm of a drone to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a folding mechanism for a drone arm, comprising a carbon fiber tube and a shell, wherein the carbon fiber tube is connected to the shell through a folding structure, and the inner side of the shell is provided with a plurality of plug bodies, the plug bodies being installed on the inner side of a clamping plate, and the four corners of the clamping plate being connected to the shell by screws;

[0006] The folding structure includes a first slot and a rivet. Fixing blocks are installed on both sides of the outer wall of the outer shell. The right end of the carbon fiber tube has a first slot on both sides. The right side of the outer wall of the carbon fiber tube is connected to the tube body by a rivet. A clamp is installed on the left side of the outer wall of the tube body. A fifth rotating shaft is installed on the upper and lower sides of the tube body. The upper fifth rotating shaft is connected to the telescopic rod through a first rotating shaft. The upper part of the telescopic rod passes through a first fixing slot and is connected to the lower left side of the second plate through a second rotating shaft. The first fixing slot is located inside the first plate. The first plate is located inside the second fixing slot. The second fixing slot is located inside the second plate. The right side of the first plate is connected to the second plate through a third rotating shaft. A latch is installed below the first plate. The third rotating shaft is located inside the storage slot. A spring is installed above the left side of the storage slot. The upper part of the spring is connected to the inner wall of the second plate. The right side of the second plate is connected to the upper fixing block through a fourth rotating shaft. The lower fixing block is connected to the lower clamp through a sixth rotating shaft. A second slot is provided on the left side of the upper clamp.

[0007] Preferably, the carbon fiber tube and the first slot are integrated to prevent the first slot from being configured as a single unit with the tube body.

[0008] Preferably, the tube body and the clamp are fixedly connected, and the first rotating shaft and the lower part of the telescopic rod are rotatably connected.

[0009] Preferably, the upper part of the telescopic rod is rotatably connected to the second rotating shaft, and the left side of the second plate is M-shaped.

[0010] Preferably, the telescopic rod, the second rotating shaft, and the second plate are all slidably connected to the first fixing groove, and the first fixing groove and the first plate are integrally formed.

[0011] Preferably, the first plate and the second fixing groove are correspondingly arranged, and the first plate and the third rotating shaft are rotatably connected.

[0012] Preferably, the first plate and the latch are fixedly connected, and the spring and the second plate are fixedly connected.

[0013] Preferably, the spring and the first plate are correspondingly arranged. With the spring, when the latch is pressed to the bottom, it can automatically lock to prevent loosening. The second plate and the fourth rotating shaft are rotatably connected.

[0014] Preferably, the outer shell and the fixing block are fixedly connected, and the sixth rotating shaft and the lower clamp are rotatably connected.

[0015] Preferably, the clamp and the second slot are integrated, and the second slot and the buckle are engaged.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] The carbon fiber tube is connected to the outer shell via a folded structure using a first slot and rivets. The right end of the carbon fiber tube has first slots on both sides, connected to the tube body via rivets, ensuring a secure connection. The plug body features a pluggable design, allowing for the installation of one or two plug bodies as needed. When the external equipment malfunctions, the external equipment can be replaced individually without disassembling the equipment downstream of the plug body, improving maintenance and ease of use. Furthermore, each plug body operates independently without interference, ensuring system stability and reliability.

[0018] Secondly, the carbon fiber tube, outer shell, folding structure, and plug body together form the overall framework of the drone arm folding mechanism. The carbon fiber tube, as the main supporting structure, is connected to the outer shell through the folding structure, realizing the folding and unfolding functions of the arm. By adjusting the position and angle of the telescopic rod, the degree of folding of the arm can be flexibly controlled to meet the needs of different usage scenarios. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a front view structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the disassembled three-dimensional structure of this utility model;

[0022] Figure 3 This is a frontal perspective three-dimensional structural diagram of the folding structure used in this utility model;

[0023] Figure 4 This is a partial side view cross-sectional diagram of the folding structure of this utility model;

[0024] Figure 5 This is a front cross-sectional view of the folding structure used in this utility model.

[0025] Figure 6 This is a partial top view of the folding structure of this utility model.

[0026] In the diagram: 1. Carbon fiber tube; 2. Outer shell; 3. Folding structure; 4. Plug body; 5. Clamping plate; 301. First slot; 302. Rivet; 303. Tube body; 304. Clamp; 305. First pivot; 306. Telescopic rod; 307. First fixing slot; 308. First plate; 309. Second pivot; 310. Second fixing slot; 311. Third pivot; 312. Lock; 313. Spring; 314. Storage slot; 315. Fourth pivot; 316. Fixing block; 317. Sixth pivot; 318. Second plate; 319. Second slot; 320. Fifth pivot. Detailed Implementation

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Please see Figure 1-6 This utility model provides a technical solution for a drone arm folding mechanism: a drone arm folding mechanism, including a carbon fiber tube 1 and a shell 2, the carbon fiber tube 1 is connected to the shell 2 through a folding structure 3, the inner side of the shell 2 is provided with multiple plug bodies 4, one or two sets of plug bodies 4 can be installed, depending on the situation, so that if the external equipment fails, the external equipment can be plugged in and replaced separately without affecting the disassembly of the equipment after the plug body 4. The plug body 4 is installed on the inner side of the clamping plate 5, and the four corners of the clamping plate 5 are connected to the shell 2 by screws;

[0031] The folding structure 3 includes a first slot 301 and a rivet 302. Fixing blocks 316 are installed on both sides of the outer wall of the outer shell 2. The first slots 301 are provided on both sides of the right end of the carbon fiber tube 1. The right side of the outer wall of the carbon fiber tube 1 is connected to the tube body 303 via the rivet 302. A clamp 304 is installed on the left side of the outer wall of the tube body 303. Fifth rotating shafts 320 are installed on the upper and lower sides of the tube body 303. The upper fifth rotating shaft 320 is connected to the telescopic rod 306 via a first rotating shaft 305. The upper part of the telescopic rod 306 passes through a first fixing groove 307 and is connected to the left side below the second plate 318 via a second rotating shaft 309. The first fixing groove 307 is located inside the first plate 308. The first plate 308 is located on... The second fixing groove 310 is located inside the second plate 318. The right side of the first plate 308 is connected to the second plate 318 via the third rotating shaft 311. A latch 312 is installed below the first plate 308. The third rotating shaft 311 is located inside the storage groove 314. A spring 313 is installed above the left side of the storage groove 314. The upper part of the spring 313 is connected to the inner wall of the second plate 318. The right side of the second plate 318 is connected to the upper fixing block 316 via the fourth rotating shaft 315. The lower fixing block 316 is connected to the lower clamp 304 via the sixth rotating shaft 317. A second slot 319 is provided on the left side of the upper clamp 304.

[0032] The carbon fiber tube 1 and the first slot 301 are integrated, and the first slot 301 and the tube body 303 are correspondingly set. The first slot 301 is used to prevent the tube body 303 from rotating.

[0033] The pipe body 303 and the clamp 304 are fixedly connected, with the clamp 304 independently locking the pipe body 303 and the clamp 304 being fixedly connected by rivets 302. The first rotating shaft 305 and the lower part of the telescopic rod 306 are rotatably connected.

[0034] The upper part of the telescopic rod 306 is rotatably connected to the second rotating shaft 309, and the left side of the second plate 318 is M-shaped.

[0035] The telescopic rod 306, the second rotating shaft 309, and the second plate 318 are all slidably connected to the first fixing groove 307, and the first fixing groove 307 and the first plate 308 are integrated.

[0036] The first plate 308 and the second fixing groove 310 are correspondingly arranged, and the first plate 308 and the third rotating shaft 311 are rotatably connected.

[0037] The first plate 308 is fixedly connected to the latch 312, and the spring 313 is fixedly connected to the second plate 318.

[0038] The spring 313 is correspondingly arranged with the first plate 308, and the second plate 318 is rotatably connected with the fourth rotating shaft 315.

[0039] The outer shell 2 is fixedly connected to the fixing block 316, and the sixth rotating shaft 317 is rotatably connected to the lower clamp 304.

[0040] The clamp 304 and the second slot 319 are integrated, and the second slot 319 and the latch 312 are engaged.

[0041] Working principle:

[0042] First, the carbon fiber tube 1 is connected to the outer shell 2 via a folding structure 3. The right end of the carbon fiber tube 1 has first slots 301 on both sides, and is connected to the tube body 303 via rivets 302, ensuring a stable connection between the carbon fiber tube 1 and the tube body 303. The plug body 4 adopts a pluggable design, allowing for the installation of one or two sets of plug bodies 4 as needed. When the external equipment malfunctions, the external equipment can be replaced individually without disassembling the equipment after the plug body 4, improving the convenience of maintenance and use. Furthermore, each plug body 4 operates independently without affecting others, ensuring the stability and reliability of the system.

[0043] Secondly, the carbon fiber tube 1, the outer shell 2, the folding structure 3, and the plug body 4 together form the overall framework of the drone arm folding mechanism. The carbon fiber tube 1 serves as the main support structure and is connected to the outer shell 2 through the folding structure 3, realizing the folding and unfolding functions of the arm. By adjusting the position and angle of the telescopic rod 306, the degree of folding of the arm can be flexibly controlled to meet the needs of different usage scenarios.

[0044] Although embodiments of the present utility have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A folding mechanism for the arm of a drone, comprising a carbon fiber tube (1) and a shell (2), characterized in that: The carbon fiber tube (1) is connected to the outer shell (2) through a folding structure (3). The inner side of the outer shell (2) is provided with multiple plug bodies (4). The plug bodies (4) are installed on the inner side of the card plate (5). The four corners of the card plate (5) are connected to the outer shell (2) by screws. The folding structure (3) includes a first slot (301) and a rivet (302). Fixing blocks (316) are installed on both sides of the outer wall of the outer shell (2). The first slot (301) is provided on both sides of the right end of the carbon fiber tube (1). The right side of the outer wall of the carbon fiber tube (1) is connected to the tube body (303) by the rivet (302). The left side of the outer wall of the tube body (303) is installed with a clamp (304). The fifth rotating shaft (320) is installed on the upper and lower sides of the tube body (303). The upper fifth rotating shaft (320) is connected to the telescopic rod (306) through the first rotating shaft (305). The upper part of the telescopic rod (306) passes through the first fixing groove (307) and is connected to the lower left side of the second plate (318) through the second rotating shaft (309). The first fixing groove (307) is located on the inner side of the first plate (308). The first plate (308) The first plate (308) is located inside the second fixing groove (310), which is located inside the second plate (318). The right side of the first plate (308) is connected to the second plate (318) via the third rotating shaft (311). A latch (312) is installed below the first plate (308). The third rotating shaft (311) is located inside the storage groove (314). A spring (313) is installed above the left side of the storage groove (314). The upper part of the spring (313) is connected to the inner wall of the second plate (318). The right side of the second plate (318) is connected to the upper fixing block (316) via the fourth rotating shaft (315). The lower fixing block (316) is connected to the lower clamp (304) via the sixth rotating shaft (317). The left side of the upper clamp (304) is provided with a second slot (319).

2. The UAV arm folding mechanism according to claim 1, characterized in that: The carbon fiber tube (1) and the first slot (301) are integrated, and the first slot (301) and the tube body (303) are correspondingly arranged.

3. The UAV arm folding mechanism according to claim 2, characterized in that: The tube body (303) and the clamp (304) are fixedly connected, and the first rotating shaft (305) and the lower part of the telescopic rod (306) are rotatably connected.

4. The UAV arm folding mechanism according to claim 3, characterized in that: The telescopic rod (306) is rotatably connected to the second rotating shaft (309), and the left side of the second plate (318) is M-shaped.

5. The UAV arm folding mechanism according to claim 4, characterized in that: The telescopic rod (306), the second rotating shaft (309), and the second plate (318) are all slidably connected to the first fixing groove (307), and the first fixing groove (307) and the first plate (308) are integrally formed.

6. The UAV arm folding mechanism according to claim 5, characterized in that: The first plate (308) and the second fixing groove (310) are correspondingly arranged, and the first plate (308) and the third rotating shaft (311) are rotatably connected.

7. The UAV arm folding mechanism according to claim 6, characterized in that: The first plate (308) is fixedly connected to the latch (312), and the spring (313) is fixedly connected to the second plate (318).

8. The UAV arm folding mechanism according to claim 7, characterized in that: The spring (313) is correspondingly arranged with the first plate (308), and the second plate (318) is rotatably connected with the fourth rotating shaft (315).

9. A drone arm folding mechanism according to claim 8, characterized in that: The outer shell (2) is fixedly connected to the fixing block (316), and the sixth rotating shaft (317) is rotatably connected to the lower clamp (304).

10. A drone arm folding mechanism according to claim 9, characterized in that: The clamp (304) and the second slot (319) are integrated, and the second slot (319) and the buckle (312) are engaged.