A UAV arm root folding structure

Abstract

The utility model discloses a kind of unmanned plane arm root folding structure, it is related to unmanned plane device technical field, including mounting seat, the front side outer surface of mounting seat is equipped with No. fixed sleeve, the right side outer surface of mounting seat is equipped with No. 2 fixed sleeve, the inside of mounting seat is equipped with connecting sleeve, the side of the fixed sleeve of No. 1 close to connecting sleeve and the side of the fixed sleeve of No. 2 close to connecting sleeve are all set with fixed slot, the outer surface of the fixed sleeve of No. 1 and the outer surface of the fixed sleeve of No. 2 are equipped with fixed thread except the position of the fixed slot, the outside of connecting sleeve is sleeved with thread sleeve, the thread sleeve is connected with the fixed thread thread, the rear side of mounting seat is equipped with connecting plate, design additional fixed structure, the folding state of unmanned plane arm is fixed, avoid unmanned plane arm swing in conveying process, avoid the collision damage caused by the swing of arm.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) device technology, specifically to a folding structure at the root of a UAV arm. Background Technology

[0002] The development of foldable drones is an epic technological journey towards miniaturization, intelligence, and mass appeal. Its core breakthrough lies in the ingenious unification of the seemingly contradictory concepts of "flight platform" and "portability and storage." The folding structure at the base of the drone's arms is key to achieving portability, its design seeking a precise balance between rigidity and convenience. The mainstream solution employs a rotary folding mechanism, with the arms connected to the fuselage via bearings to ensure no loosening during flight. While traditional folding structures at the base of the drone's arms guarantee connection strength when unfolded, the lack of a fixed structure in the folded state, relying primarily on movable connections, makes the arms susceptible to collision damage during transport due to arm swinging. Utility Model Content

[0003] The purpose of this utility model is to provide a folding structure at the root of a drone arm, in order to solve the problem mentioned in the background art that while the traditional folding structure at the root of a drone arm can ensure the connection strength after the arm is unfolded, the drone arm lacks a fixed structure and is mostly connected by movable parts in the folded state, which makes the swinging of the arm during the transportation of the drone prone to collision damage.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a folding structure at the root of a drone arm, including a mounting base, a first fixing sleeve on the front outer surface of the mounting base, a second fixing sleeve on the right outer surface of the mounting base, a connecting sleeve inside the mounting base, fixing slots on the side of the first fixing sleeve near the connecting sleeve and the side of the second fixing sleeve near the connecting sleeve, fixing threads on the outer surfaces of the first fixing sleeve and the second fixing sleeve except at the fixing slots, a threaded sleeve sleeved on the outer side of the connecting sleeve, the threaded sleeve being threadedly connected to the fixing threads, and a connecting plate on the rear side of the mounting base.

[0005] Preferably, the inner end of the connecting sleeve is a sealed structure, the inner end of the connecting sleeve is provided with a rotating shaft seat, the rotating shaft seat is rotatably connected to the mounting base through a rotating shaft, and a reinforcing structure is provided between the inner side of the connecting sleeve and the rotating shaft seat.

[0006] Preferably, the size of the fixing slot is smaller than the outer diameter of the connecting sleeve, and the connecting sleeve is snapped into the interior of the first fixing sleeve and the second fixing sleeve through the fixing slot.

[0007] Preferably, the connecting plate is provided with bolt connecting feet at the four outer corners, and bolt holes are provided in the middle of the bolt connecting feet.

[0008] Preferably, the mounting base has a rounded transition at the sharp corner between the first fixing sleeve and the second fixing sleeve.

[0009] Compared with the prior art, the beneficial effects of this utility model are: replacing the traditional folding structure at the root of the drone arm, while ensuring the connection strength after the arm is unfolded, an additional fixing structure is designed to fix the folded state of the drone arm, so as to prevent the drone arm from swinging during transportation and avoid collision damage caused by the swinging of the arm. Attached Figure Description

[0010] Figure 1 This is an isometric view of the main structure of this utility model; Figure 2 This is an isometric exploded view of the main structure of this utility model; Figure 3 This is a front view schematic diagram of the main structure of this utility model; Figure 4 This is a top sectional view of the main structure of this utility model; Figure 5 This is a top view of the main structure of this utility model.

[0011] In the diagram: 1-mounting base, 2-fixing sleeve No. 1, 3-fixing sleeve No. 2, 4-connecting sleeve, 5-fixing slot, 6-fixing thread, 7-threaded sleeve, 8-connecting plate, 9-shaft seat, 10-reinforcing structure, 11-bolt connecting foot, 12-bolt hole, 13-rounded transition. Detailed Implementation

[0012] 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.

[0013] Please see Figure 1-5This utility model provides a folding structure for the root of a drone arm, including a mounting base 1. A first fixing sleeve 2 is provided on the front outer surface of the mounting base 1, and a second fixing sleeve 3 is provided on the right outer surface of the mounting base 1. A connecting sleeve 4 is provided inside the mounting base 1. Fixing slots 5 are provided on the side of the first fixing sleeve 2 near the connecting sleeve 4 and the side of the second fixing sleeve 3 near the connecting sleeve 4. Fixing threads 6 are provided on the outer surfaces of the first fixing sleeve 2 and the second fixing sleeve 3, except for the fixing slots 5. A threaded sleeve 7 is fitted onto the outer side of the connecting sleeve 4, and the threaded sleeve 7 is threadedly connected to the fixing threads 6. A connecting plate 8 is provided on the rear side of the mounting base 1.

[0014] In use, the drone arm is fixedly connected to the inside of the connecting sleeve 4 by bolts. The connecting sleeve 4 is rotatably connected to the inside of the mounting base 1 via a rotating shaft. The mounting base 1 is fixedly connected to the drone body via the connecting plate 8. A threaded sleeve 7 is fitted onto the outside of the connecting sleeve 4. When the drone arm needs to be unfolded, the connecting sleeve 4 is inserted into the inside of the first fixed sleeve 2 via the fixing slot 5. The threaded sleeve 7 is connected to the first fixed sleeve 2 via the fixing thread 6. Thus, the connecting sleeve 4 is clamped and fixed by the threaded sleeve 7 and the first fixed sleeve 2, thereby fixing the drone arm in the unfolded state. When the drone arm needs to be folded, the connecting sleeve 4 is inserted into the inside of the second fixed sleeve 3 via the fixing slot 5. The threaded sleeve 7 is connected to the second fixed sleeve 3 via the fixing thread 6. Thus, the connecting sleeve 4 is clamped and fixed by the threaded sleeve 7 and the second fixed sleeve 3, thereby fixing the drone arm in the folded state.

[0015] The inner end of the connecting sleeve 4 is a sealed structure. The inner end of the connecting sleeve 4 is provided with a rotating shaft seat 9. The rotating shaft seat 9 is rotatably connected to the mounting base 1 through a rotating shaft. A reinforcing structure 10 is provided between the inner side of the connecting sleeve 4 and the rotating shaft seat 9. The rotating shaft seat 9 is fixedly connected to the inside of the connecting sleeve 4 through the reinforcing structure 10 to ensure the connection strength between the rotating shaft seat 9 and the connecting sleeve 4. The rotating shaft seat 9 carries the connecting sleeve 4 and is rotatably connected to the inside of the mounting base 1.

[0016] The size of the fixed slot 5 is smaller than the outer diameter of the connecting sleeve 4. The connecting sleeve 4 is snapped into the interior of the first fixed sleeve 2 and the second fixed sleeve 3 through the fixed slot 5. While ensuring that the connecting sleeve 4 can be connected to the interior of the first fixed sleeve 2 and the second fixed sleeve 3 through the fixed slot 5, the connecting sleeve 4 can be fixed through the threaded connection between the threaded sleeve 7 and the first fixed sleeve 2 and the second fixed sleeve 3.

[0017] The connecting plate 8 is provided with bolt connecting feet 11 at the four outer corners. Bolt holes 12 are provided in the middle of the bolt connecting feet 11. By providing bolt holes 12 on the bolt connecting feet 11 and passing bolts through the bolt holes 12, the connecting plate 8 can be fixedly connected to the drone body.

[0018] The mounting base 1 is provided with an arc transition 13 at the sharp corner between the first fixed sleeve 2 and the second fixed sleeve 3 to avoid interference between the sharp corner and the threaded sleeve 7.

[0019] Although embodiments of the present invention 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A folding structure at the root of a drone arm, characterized in that: The device includes a mounting base (1), a first fixing sleeve (2) on the front outer surface of the mounting base (1), a second fixing sleeve (3) on the right outer surface of the mounting base (1), a connecting sleeve (4) inside the mounting base (1), a fixing slot (5) on the side of the first fixing sleeve (2) near the connecting sleeve (4) and on the side of the second fixing sleeve (3) near the connecting sleeve (4), a fixing thread (6) is provided on the outer surface of the first fixing sleeve (2) and the outer surface of the second fixing sleeve (3) except for the fixing slot (5), a threaded sleeve (7) is sleeved on the outer side of the connecting sleeve (4), the threaded sleeve (7) is threadedly connected to the fixing thread (6), and a connecting plate (8) is provided on the rear side of the mounting base (1).

2. The folding structure at the root of a UAV arm according to claim 1, characterized in that: The inner end of the connecting sleeve (4) is a sealed structure. The inner end of the connecting sleeve (4) is provided with a rotating shaft seat (9). The rotating shaft seat (9) is rotatably connected to the mounting base (1) through a rotating shaft. A reinforcing structure (10) is provided between the inner side of the connecting sleeve (4) and the rotating shaft seat (9).

3. The folding structure at the root of a UAV arm according to claim 1, characterized in that: The size of the fixed slot (5) is smaller than the outer diameter of the connecting sleeve (4), and the connecting sleeve (4) is snapped into the interior of the first fixed sleeve (2) and the second fixed sleeve (3) through the fixed slot (5).

4. The folding structure at the root of a UAV arm according to claim 1, characterized in that: The connecting plate (8) has bolt connecting feet (11) at the four outer corners, and bolt holes (12) are opened in the middle of the bolt connecting feet (11).

5. The folding structure at the root of a UAV arm according to claim 1, characterized in that: The mounting base (1) is provided with a rounded transition (13) at the sharp corner between the first fixing sleeve (2) and the second fixing sleeve (3).

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