Foldable arm of unmanned aerial vehicle

Abstract

The utility model discloses a foldable unmanned aerial vehicle arm, and particularly relates to the technical field of unmanned aerial vehicle arms, the foldable unmanned aerial vehicle arm comprises four fixed arms fixedly arranged on a vehicle body, a movable folding arm is arranged at one end of each fixed arm, a folding mounting block is arranged at one end of each movable folding arm, and a wing is fixedly arranged at the top end of each folding mounting block; and two movable blocks are arranged in the movable groove. The positions of the two limiting plates are adjusted by rotating the rotating disc and the two-way lead screw, then the fixed arm, the movable folding arm and the folding installation block can be folded, and then the fixed arm, the movable folding arm and the folding installation block are fixed together through the movable plate and the limiting rods. In this way, folding and fixing of the fixed arm, the movable folding arm and the folding mounting block are completed, folding of the fixed arm, the movable folding arm and the folding mounting block is simple and convenient, the situation that the overall space size is large when the unmanned aerial vehicle is transported is effectively reduced, and the unmanned aerial vehicle is convenient to carry.

Description

Technical Field

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

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and their own program control devices, or operated autonomously, either completely or intermittently, by an onboard computer. During flight, UAVs require arms to support the rotating propellers.

[0003] Currently, in actual use, drones have a large fuselage and wingspan, and long arms, which results in a large volume of space occupied, making them inconvenient to transport and transfer, and thus not easy to carry. Utility Model Content

[0004] The purpose of this invention is to provide a foldable arm for drones to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a foldable arm for a drone, comprising:

[0006] Four fixed arms are fixedly mounted on the fuselage. One end of each fixed arm is provided with a movable folding arm, and one end of each movable folding arm is provided with a folding mounting block. The top end of the connection between the fixed arm and the movable folding arm and the bottom end of the connection between the movable folding arm and the folding mounting block are rotatably connected by hinges. A wing is fixedly mounted on the top end of the folding mounting block.

[0007] The movable groove is located at the top of the movable folding arm. Two movable blocks are located inside the movable groove. A limiting plate is fixed to the bottom outer end of each movable block. A limiting groove is also located at the end of the fixed arm and the folding mounting block near the movable folding arm. One end of each limiting plate passes through both ends of the movable folding arm and extends into the two limiting grooves. A bidirectional lead screw is located inside the movable groove. Both ends of the bidirectional lead screw pass through the two movable blocks and are rotatably connected to the two inner side walls of the movable groove. The bidirectional lead screw is threaded to both movable blocks with opposite thread directions.

[0008] Preferably, a turntable is fixedly provided at the middle of the outer end of the bidirectional lead screw to facilitate the rotation of the bidirectional lead screw.

[0009] Preferably, the front and rear walls of the movable groove are provided with limiting grooves, and the front and rear ends of the movable block are fixed with limiting sliders. The limiting sliders are located inside the limiting grooves to facilitate the guidance of the movable block.

[0010] Preferably, a movable plate is provided on one side of the movable folding arm, and a limiting rod is fixed on the inner side of both ends of the movable plate. A limiting hole corresponding to the size of the limiting rod is opened on both the fixed arm and the folding mounting block, so as to facilitate the limiting and fixing of the fixed arm, the movable folding arm and the folding mounting block after folding.

[0011] Preferably, a threaded rod is rotatably connected to one side of the movable folding arm via a bearing. One end of the threaded rod passes through the movable plate and is threadedly connected to the movable plate. A rotating block is fixedly provided at one end of the threaded rod to facilitate the movement of the movable plate and the limiting rod.

[0012] Preferably, two guide rods are fixedly provided on one side of the movable folding arm. One end of each guide rod passes through the movable plate. The two guide rods are respectively located at the top and bottom of the threaded rod. A limiting block is fixedly provided at one end of each guide rod to facilitate guiding the movable plate.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] By rotating the turntable and the two-way lead screw to adjust the position of the two limiting plates, the fixed arm, the movable folding arm, and the folding mounting block can be folded up. Then, the fixed arm, the movable folding arm, and the folding mounting block are fixed together by the movable plate and the limiting rod. This completes the folding and fixing of the fixed arm, the movable folding arm, and the folding mounting block, making the folding of the fixed arm, the movable folding arm, and the folding mounting block relatively simple and convenient. It effectively reduces the overall volume of the drone during transportation, making it more convenient to carry. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall folding structure of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the fixed arm, movable folding arm, and folding mounting block of this utility model;

[0019] Figure 4 This is a three-dimensional sectional view of the fixed arm, movable folding arm, and folding mounting block of this utility model. Figure 1 ;

[0020] Figure 5 This is a three-dimensional sectional view of the fixed arm, movable folding arm, and folding mounting block of this utility model. Figure 2 ;

[0021] Figure 6 This is a three-dimensional cross-sectional view of the movable plate of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Fixed arm; 2. Movable folding arm; 3. Folding mounting block; 4. Wing; 5. Movable groove; 6. Movable block; 7. Limiting plate; 8. Limiting groove; 9. Two-way lead screw; 10. Turntable; 11. Limiting slide groove; 12. Limiting slider; 13. Movable plate; 14. Limiting rod; 15. Limiting hole; 16. Threaded rod; 17. Rotating block; 18. Guide rod; 19. Limiting block. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figures 1 to 6 The foldable arm of a drone shown includes:

[0026] Four fixed arms 1 are fixedly mounted on the fuselage. One end of the fixed arm 1 is provided with a movable folding arm 2. One end of the movable folding arm 2 is provided with a folding mounting block 3. The top of the connection between the fixed arm 1 and the movable folding arm 2 and the bottom of the connection between the movable folding arm 2 and the folding mounting block 3 are connected by hinges. The top of the folding mounting block 3 is fixedly provided with a wing 4.

[0027] The movable groove 5 is located at the top of the movable folding arm 2. Inside the movable groove 5, there are two movable blocks 6. A limiting plate 7 is fixedly installed at the bottom of the outer side of the movable block 6. A limiting groove 8 is opened at the end of the fixed arm 1 and the folding mounting block 3 near the movable folding arm 2. One end of the two limiting plates 7 passes through both ends of the movable folding arm 2 and extends into the two limiting grooves 8. Inside the movable groove 5, there is a bidirectional lead screw 9. The two ends of the bidirectional lead screw 9 pass through the two movable blocks 6 and are rotatably connected to the two inner side walls of the movable groove 5. The bidirectional lead screw 9 and the two movable blocks 6 are connected by threads with opposite thread directions. A turntable 10 is fixedly installed at the middle of the outer end of the bidirectional lead screw 9. Limiting grooves 11 are opened on the front and rear walls of the movable groove 5. A limiting slider 12 is fixed at the front and rear ends of the movable block 6. The limiting slider 12 is located inside the limiting groove 11.

[0028] A movable plate 13 is provided on one side of the movable folding arm 2. A limiting rod 14 is fixed on the inner side of both ends of the movable plate 13. A limiting hole 15 corresponding to the size of the limiting rod 14 is opened on both the fixed arm 1 and the folding mounting block 3. A threaded rod 16 is rotatably connected to one side of the movable folding arm 2 through a bearing. One end of the threaded rod 16 passes through the movable plate 13 and is threadedly connected to the movable plate 13. A rotating block 17 is fixed on one end of the threaded rod 16. Two guide rods 18 are fixed on one side of the movable folding arm 2. One end of the guide rod 18 passes through the movable plate 13. The two guide rods 18 are respectively located at the top and bottom of the threaded rod 16. A limiting block 19 is fixed on one end of the guide rod 18.

[0029] Rotating the turntable 10 causes the bidirectional lead screw 9 to rotate. Since the bidirectional lead screw 9 is threadedly connected to the movable block 6, the two movable blocks 6 move closer together as the bidirectional lead screw 9 rotates. The two movable blocks 6 then move the two limiting plates 7 closer together, with one end of each limiting plate 7 moving away from the two limiting grooves 8. The folding mounting block 3 is folded to the bottom of one end of the movable folding arm 2, and then the movable folding arm 2 is folded to the top of the fixed arm 1. Rotating the rotating block 17 causes the threaded rod 16 to rotate. Since the threaded rod 16 is threadedly connected to the movable plate 13, the movable plate 13 moves inward as the threaded rod 16 rotates. The movable plate 13 then moves the two limiting rods 14 inward, and the two limiting rods 14 are inserted into the limiting holes 15 on the fixed arm 1 and the folding mounting block 3, respectively. This secures the folded fixed arm 1, movable folding arm 2, and folding mounting block 3 together. Figure 2 As shown.

[0030] This invention adjusts the positions of the two limiting plates 7 by rotating the turntable 10 and the bidirectional lead screw 9, thereby folding the fixed arm 1, the movable folding arm 2, and the folding mounting block 3. The fixed arm 1, the movable folding arm 2, and the folding mounting block 3 are then fixed together by the movable plate 13 and the limiting rod 14. This completes the folding and fixing of the fixed arm 1, the movable folding arm 2, and the folding mounting block 3, making the folding of these components simple and convenient. It effectively reduces the overall volume of the drone during transport, making it easier to carry. This embodiment specifically solves the problem in the prior art where the large size of the drone's fuselage and wings, and the long arms result in a large volume of space occupied, making transportation and transfer inconvenient and hindering its portability.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A foldable arm for a drone, characterized in that, include: Four fixed arms (1) are fixedly mounted on the fuselage. One end of each fixed arm (1) is provided with a movable folding arm (2). One end of each movable folding arm (2) is provided with a folding mounting block (3). The top end of the connection between the fixed arm (1) and the movable folding arm (2) and the bottom end of the connection between the movable folding arm (2) and the folding mounting block (3) are connected by hinges. The top end of the folding mounting block (3) is fixedly provided with a wing (4). The movable groove (5) is located at the top of the movable folding arm (2). The movable groove (5) contains two movable blocks (6). The bottom outer side of the movable block (6) is fixed with a limiting plate (7). The fixed arm (1) and the folding mounting block (3) are each provided with a limiting groove (8) near the movable folding arm (2). One end of each of the two limiting plates (7) passes through both ends of the movable folding arm (2) and extends into the two limiting grooves (8). The movable groove (5) contains a bidirectional screw rod (9). The two ends of the bidirectional screw rod (9) pass through the two movable blocks (6) and are rotatably connected to the two side walls inside the movable groove (5). The bidirectional screw rod (9) is connected to the two movable blocks (6) by threads with opposite thread directions.

2. The foldable arm of a drone according to claim 1, characterized in that: A turntable (10) is fixedly provided at the middle of the outer end of the bidirectional lead screw (9).

3. The foldable arm of a drone according to claim 1, characterized in that: The movable groove (5) has a limiting slide groove (11) on both the front and rear walls. The movable block (6) has a limiting slider (12) fixed at both the front and rear ends. The limiting slider (12) is located inside the limiting slide groove (11).

4. The foldable arm of a drone according to claim 1, characterized in that: The movable folding arm (2) has a movable plate (13) on one side. A limiting rod (14) is fixed on the inner side of both ends of the movable plate (13). A limiting hole (15) corresponding to the size of the limiting rod (14) is opened on both the fixed arm (1) and the folding mounting block (3).

5. The foldable arm of a drone according to claim 4, characterized in that: The movable folding arm (2) is rotatably connected to a threaded rod (16) via a bearing on one side. One end of the threaded rod (16) passes through the movable plate (13) and is connected to the movable plate (13) via a thread. A rotating block (17) is fixedly provided at one end of the threaded rod (16).

6. The foldable arm of a drone according to claim 5, characterized in that: Two guide rods (18) are fixedly provided on one side of the movable folding arm (2). One end of the guide rod (18) passes through the movable plate (13). The two guide rods (18) are respectively provided at the top and bottom of the threaded rod (16). A limiting block (19) is fixedly provided at one end of the guide rod (18).

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