Unmanned aerial vehicle arm folding structure
The design of the limiting post, which combines screws and bearings, solves the problem of inconvenient folding of drone arms, enabling convenient folding and fixing of the arms and improving the user experience.
Patent Information
- Application Number
- CN202520559417.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The folding process of existing drone arms is rather cumbersome, causing inconvenience to users.
Using a combination of plug screws and bearings, and through the design of limit posts and rotating parts, the arm can rotate between the upper and lower carbon plates. The folding and unfolding of the arm is achieved by the overlap of the limit groove and the movable groove, and it is fixed by locking screws and collars.
It enables convenient disassembly and fixation of the drone's arms, improving its practicality.
Smart Images

Figure CN223791770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of arm folding technology, and in particular to a folding structure for the arm of a drone. Background Technology
[0002] When a drone is no longer in use, its arms are an important component.
[0003] After a drone is finished using it, the arms usually need to be folded and stored to reduce its footprint and make it easier to carry. However, in the current technology, folding the arms of some drones is quite troublesome, which causes inconvenience to users.
[0004] Based on the above problems, a folding structure for the arm of a drone is proposed. Utility Model Content
[0005] In view of this, the main purpose of this utility model is to provide a folding structure for the arm of a drone, which solves the above-mentioned problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a folding structure for a drone arm, comprising an upper carbon plate, an arm, and a lower carbon plate arranged sequentially. A locking screw is inserted between the upper carbon plate, the arm, and the lower carbon plate. Multiple sets of bearings are fitted on the locking screw, and the multiple sets of bearings are arranged between the arm and the upper carbon plate or the lower carbon plate. A locking screw is inserted between the upper carbon plate and the lower carbon plate. A rotating component is provided on the locking screw. A limiting post is connected to the rotating component. A limiting groove is provided on the upper carbon plate for the limiting post to pass through. A movable groove is provided on the arm for the limiting post to be inserted.
[0007] As a preferred technical solution, the arm can rotate between the upper carbon plate and the lower carbon plate through the cooperation of the screw and the bearing.
[0008] As a preferred technical solution, when the limiting post passes through the limiting groove and is inserted into the movable groove, the arm is in a restricted movement state.
[0009] As a preferred technical solution, a countersunk hexagonal screw is provided between the upper carbon plate and the lower carbon plate, and a collar is provided on the outside of the countersunk hexagonal screw.
[0010] As a preferred technical solution, one end of the arm is provided with a protrusion, and when the collar and the protrusion are engaged, the arm can be restricted from continuing to rotate.
[0011] As a preferred technical solution, a carbon fiber plate for pressing wire is fixed at one end of the arm.
[0012] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, its main features are:
[0013] This device can lift the rotating component to move the limiting post, thus removing the limiting post from restricting the machine arm. Through the bearing and the plug screw, the machine arm can rotate between the upper and lower carbon plates, thereby performing the folding or unfolding process. When the limiting groove and the movable groove are in an overlapping state, pressing the rotating component moves the limiting post, causing the limiting post to pass through the limiting groove and then insert into the interior of the movable groove, thereby locking the machine arm and completing the fixation. This device is easy to disassemble and highly practical.
[0014] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0015] Figure 1 This is a front view schematic diagram of the overall structure of an embodiment of this utility model;
[0016] Figure 2 This is a top view schematic diagram of the overall structure of an embodiment of this utility model;
[0017] Figure 3 This is a bottom view of the overall structure of an embodiment of the present utility model;
[0018] Figure 4 This is a perspective view of the overall structure of an embodiment of this utility model;
[0019] Figure 5 This is a schematic diagram of the exploded structure of an embodiment of the present invention. Figure 1 ;
[0020] Figure 6 This is a schematic diagram of the exploded structure of an embodiment of the present invention. Figure 2 .
[0021] Explanation of reference numerals in the attached drawings: 1. Upper carbon plate; 101. Limiting groove; 2. Machine arm; 201. Movable groove; 202. Protrusion; 3. Lower carbon plate; 4. Bearing; 5. Plug screw; 6. Collar; 7. Countersunk hex socket screw; 8. Locking screw; 9. Rotating component; 10. Limiting post; 11. Pressure carbon plate. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0024] Please see Figures 1 to 6 This utility model provides a folding structure for a drone arm, including an upper carbon plate 1, an arm 2, and a lower carbon plate 3 arranged sequentially. A locking screw 5 passes through the upper carbon plate 1, arm 2, and lower carbon plate 3. Multiple sets of bearings 4 are fitted onto the locking screw 5 and positioned between the arm 2 and either the upper or lower carbon plate 1. Specifically, two sets of bearings 4 are provided. The arm 2 can rotate between the upper and lower carbon plates 1 and 3 through the cooperation of the locking screw 5 and the bearings 4. A locking screw 8 passes through the upper and lower carbon plates 1 and 3, and a rotating component 9 is provided on the locking screw 8. A limiting post 10 is connected to the rotating component 9. A limiting groove 101 is provided on the upper carbon plate 1 for the limiting post 10 to pass through. The device has a movable slot 201 for inserting a limiting post 10. When the limiting post 10 passes through the limiting slot 101 and is inserted into the movable slot 201, the arm 2 is in a restricted movement state. This device can lift the rotating component 9 to drive the limiting post 10 to move, so that the limiting post 10 no longer restricts the arm 2. Then, the bearing 4, together with the plug screw 5, can make the arm 2 rotate between the upper carbon plate 1 and the lower carbon plate 3, thereby performing the folding or unfolding process. When the limiting slot 101 and the movable slot 201 are in an overlapping state, pressing the rotating component 9 can drive the limiting post 10 to move, so that the limiting post 10 passes through the limiting slot 101 and is inserted into the interior of the movable slot 201, thereby locking the arm 2 and completing the fixation.
[0025] Please see Figures 1 to 6 A countersunk hexagonal screw 7 is inserted between the upper carbon plate 1 and the lower carbon plate 3. A collar 6 is fitted on the outside of the countersunk hexagonal screw 7. A protrusion 202 is provided at one end of the arm 2. When the collar 6 and the protrusion 202 are in contact, the arm 2 can be restricted from continuing to rotate.
[0026] Please see Figures 1 to 6 One end of the machine arm 2 is fixed with a carbon plate 11 for pressing wire.
[0027] In summary, this device can lift the rotating component 9, thereby causing the limiting post 10 to move, so that the limiting post 10 no longer restricts the arm 2. Then, the bearing 4, together with the plug screw 5, can make the arm 2 rotate between the upper carbon plate 1 and the lower carbon plate 3, thereby performing the folding or unfolding process. When the limiting groove 101 and the movable groove 201 are in an overlapping state, pressing the rotating component 9 can cause the limiting post 10 to move, so that the limiting post 10 passes through the limiting groove 101 and then inserts into the interior of the movable groove 201. With the downward pressure of the rotating component 9, the upper carbon plate 1 and the lower carbon plate 3 clamp the arm 2, completing the locking of the arm 2 and completing the fixing process.
[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A folding structure for the arm of a drone, characterized in that: The assembly includes an upper carbon plate (1), a machine arm (2), and a lower carbon plate (3) arranged sequentially. A locking screw (5) is inserted between the upper carbon plate (1), the machine arm (2), and the lower carbon plate (3). Multiple sets of bearings (4) are fitted on the locking screw (5), and the multiple sets of bearings (4) are arranged between the machine arm (2) and the upper carbon plate (1) or the lower carbon plate (3). A locking screw (8) is inserted between the upper carbon plate (1) and the lower carbon plate (3). A rotating part (9) is provided on the locking screw (8). A limiting post (10) is connected to the rotating part (9). A limiting groove (101) is opened on the upper carbon plate (1) for the limiting post (10) to pass through. A movable groove (201) is opened on the machine arm (2) for the limiting post (10) to be inserted.
2. The folding structure for a drone arm according to claim 1, characterized in that: The arm (2) can rotate between the upper carbon plate (1) and the lower carbon plate (3) through the cooperation of the screw (5) and the bearing (4).
3. The folding structure for a drone arm according to claim 1, characterized in that: When the limiting post (10) passes through the limiting groove (101) and is inserted into the movable groove (201), the arm (2) is in a restricted movement state.
4. The folding structure for a drone arm according to claim 1, characterized in that: A countersunk hexagonal screw (7) is inserted between the upper carbon plate (1) and the lower carbon plate (3), and a collar (6) is fitted on the outside of the countersunk hexagonal screw (7).
5. The folding structure for a drone arm according to claim 4, characterized in that: One end of the arm (2) is provided with a protrusion (202), and when the collar (6) and the protrusion (202) are in contact, the arm (2) can be restricted from continuing to rotate.
6. The folding structure for a drone arm according to claim 5, characterized in that: One end of the arm (2) is fixed with a carbon plate (11) for pressing wire.