A drone propeller arm folding device

Abstract

The utility model discloses a kind of unmanned aerial vehicle propeller arm folding devices, it is related to unmanned aerial vehicle technical field.The utility model includes body and paddle arm;The upper surface of the body four corner is fixedly provided with the folding assembly of cooperation with paddle arm;The folding assembly includes U-shaped plate, the inside of U-shaped plate is rotationally connected with paddle arm, the outer wall of paddle arm is rotationally connected with round bar, one end of round bar penetrates U-shaped plate and extends to outside, the outer wall of round bar is slidably provided with the limiting component of cooperation with U-shaped plate.The utility model is through the cooperation between the specific components of folding assembly and limiting component, so that the paddle arm of unmanned aerial vehicle can be quickly stored folding, so that the volume of unmanned aerial vehicle whole is reduced, it is convenient to store and carry and transport, simultaneously greatly reduce the difficulty when carrying.

Description

Technical Field

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

[0002] A drone is an aircraft that can fly autonomously or remotely without human piloting. There are many types, which can be divided into multi-rotor (such as quadcopter), fixed-wing, and helicopter types according to their structure and function. Among them, quadcopter drones are the most common because they are flexible and easy to operate.

[0003] Traditional drone arm designs often employ a fixed configuration, which not only increases the overall size of the drone but also makes it more difficult to carry and transport. To address this, we provide a drone propeller arm folding device. Utility Model Content

[0004] The purpose of this invention is to provide a drone propeller arm folding device to solve the problems described in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a folding device for a drone propeller arm, including a body and a propeller arm; folding components for use with the propeller arm are fixedly provided at the four corners of the upper surface of the body.

[0006] The folding assembly includes a U-shaped plate, the inner side of which is rotatably connected to the propeller arm. A circular rod is rotatably connected to the outer wall of the propeller arm. One end of the circular rod passes through the U-shaped plate and extends to the outside. A limiting component that works in conjunction with the U-shaped plate is slidably provided on the outer wall of the circular rod.

[0007] The present invention is further configured such that the limiting component includes a circular ring and a limiting ring, the outer wall of the U-shaped plate is provided with an arc-shaped groove for cooperating with the circular rod, the outer wall of the U-shaped plate is provided with a limiting groove for cooperating with the limiting ring, the outer wall of the circular rod is provided with a vertical groove and an arc-shaped groove for cooperating with the circular ring, and a reset member fixed to the lower surface of the limiting ring is sleeved on the outer wall of the circular rod.

[0008] The present invention is further configured such that the inner wall of the circular ring is fixedly connected with a protrusion that slides inside the vertical groove and the arc-shaped groove.

[0009] The present invention is further configured such that the vertical groove and the arc-shaped groove are interconnected, and the reset component specifically refers to the reset spring.

[0010] The present invention is further configured such that two support frames are symmetrically fixed at the bottom of the body.

[0011] This utility model has the following beneficial effects:

[0012] This invention enables the drone's propellers to be quickly folded and stored through the cooperation between the specific components of the folding assembly and the limiting assembly, thereby reducing the overall size of the drone, making it easier to store, carry, and transport, and greatly reducing the difficulty of carrying it.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a drone propeller arm folding device.

[0016] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of a local structure.

[0017] Figure 3 This is a schematic diagram of the propeller arm structure of this utility model.

[0018] Figure 4 For the present utility model Figure 3 Schematic diagram of the basic structure.

[0019] Figure 5 This is a schematic diagram of the surface structure of the circular rod of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Body; 2. Propeller arm; 3. U-shaped plate; 4. Arc groove one; 5. Limiting groove; 6. Circular rod; 7. Circular ring; 8. Limiting ring; 9. Reset component; 10. Vertical groove; 11. Arc groove two; 12. Protrusion; 13. Support frame. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 - Figure 5 This utility model relates to a folding device for a drone propeller arm, comprising a body 1 and a propeller arm 2; folding components for use with the propeller arm 2 are fixedly installed at the four corners of the upper surface of the body 1; the folding components include a U-shaped plate 3, the inner side of which is rotatably connected to the propeller arm 2, and a circular rod 6 rotatably connected to the outer wall of the propeller arm 2, one end of which passes through the U-shaped plate 3 and extends to the outside; a limiting component for use with the U-shaped plate 3 is slidably installed on the outer wall of the circular rod 6, the limiting component including a circular ring 7 and a limiting ring 8, and the U-shaped plate 3 is used with the U-shaped plate 3. The outer wall of plate 3 is provided with an arc-shaped groove 4 that works with the circular rod 6. The outer wall of U-shaped plate 3 is provided with a limiting groove 5 that works with the limiting ring 8. The outer wall of circular rod 6 is provided with a vertical groove 10 and an arc-shaped groove 11 that work with the circular ring 7. The vertical groove 10 and the arc-shaped groove 11 are interconnected. The inner wall of circular ring 7 is fixedly connected with a protrusion 12 that slides inside the vertical groove 10 and the arc-shaped groove 11. The outer wall of circular rod 6 is fitted with a reset element 9 that is fixed to the lower surface of the limiting ring 8. The reset element 9 specifically refers to a reset spring.

[0024] When the propeller arm 2 is folded, it is attached to the side of the body 1. To unfold it, the propeller arm 2 is turned by hand. The propeller arm 2 rotates around the connection of the U-shaped plate 3. When the propeller arm 2 rotates, the circular rod 6 fixed on the propeller arm 2 will slide along the arc groove 4 on the U-shaped plate 3. When the propeller arm 2 is fully unfolded, the limiting ring 8 on the circular rod 6 will align with the limiting groove 5 on the U-shaped plate 3. At this time, press the circular ring 7. The protrusion 12 on the inner wall of the circular ring 7 moves along the vertical groove 10 on the circular rod 6 and pushes the limiting ring 8 down. During the downward movement of the limiting ring 8, it squeezes the reset piece 9 (reset spring) on ​​the circular rod 6. When the limiting ring 8 moves to the limiting groove 5, the circular ring 7 moves to the arc groove 2 11. Rotate the circular ring 7 and restrict the movement of the protrusion 12 through the arc groove 2 11, so that the circular ring 7 cannot move. At this time, the limiting ring 8 is squeezed by the circular ring 7 and cannot move, firmly fixing the paddle arm 2 in the unfolded position. When it is necessary to unlock, rotate the circular ring 7 in the opposite direction so that the protrusion 12 on its inner wall is disengaged from the arc groove 2 11. When the protrusion 12 on the inner wall of the circular ring 7 moves to the vertical groove 10, the elastic release of the reset piece 9 (reset spring) pushes the limiting ring 8 out of the limiting groove 5. At this time, the paddle arm 2 can be rotated and folded.

[0025] Please see Figure 1 Two support frames 13 are symmetrically fixed at the bottom of the body 1.

[0026] The support frame 13 supports the fuselage 1 during takeoff, landing and parking, protecting the core components of the UAV and preventing damage to them.

[0027] The operation process of this embodiment is as follows: When the propeller arm 2 is folded, it is attached to the side of the body 1. When it is to be unfolded, the propeller arm 2 is turned by hand. The propeller arm 2 rotates around the connection of the U-shaped plate 3. When the propeller arm 2 rotates, the circular rod 6 fixed on the propeller arm 2 will slide along the arc groove 4 on the U-shaped plate 3. When the propeller arm 2 is rotated to the fully unfolded position, the limiting ring 8 on the circular rod 6 will be aligned with the limiting groove 5 on the U-shaped plate 3. At this time, press the circular ring 7. The protrusion 12 on the inner wall of the circular ring 7 moves along the vertical groove 10 on the circular rod 6 and pushes the limiting ring 8 down. During the downward movement of the limiting ring 8, it squeezes the reset piece 9 (reset spring) on ​​the circular rod 6. When the limiting ring 8 moves to the limiting groove 5, the circular ring 7 moves to the arc groove 2 11. Rotate the circular ring 7 and restrict the movement of the protrusion 12 through the arc groove 2 11, so that the circular ring 7 cannot move. At this time, the limiting ring 8 is squeezed by the circular ring 7 and cannot move, firmly fixing the paddle arm 2 in the unfolded position. When it is necessary to unlock, rotate the circular ring 7 in the opposite direction so that the protrusion 12 on its inner wall is disengaged from the arc groove 2 11. When the protrusion 12 on the inner wall of the circular ring 7 moves to the vertical groove 10, the elastic release of the reset piece 9 (reset spring) pushes the limiting ring 8 out of the limiting groove 5. At this time, the paddle arm 2 can be rotated and folded.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A folding device for a drone propeller arm, comprising a body (1) and a propeller arm (2); characterized in that, The upper surface of the body (1) is fixedly equipped with folding components that work with the propeller arm (2) at the four corners. The folding assembly includes a U-shaped plate (3), the inner side of which is rotatably connected to the paddle arm (2), and a circular rod (6) is rotatably connected to the outer wall of the paddle arm (2). One end of the circular rod (6) passes through the U-shaped plate (3) and extends to the outside. A limiting component that works in conjunction with the U-shaped plate (3) is slidably provided on the outer wall of the circular rod (6).

2. The folding device for a drone propeller arm according to claim 1, characterized in that, The limiting assembly includes a circular ring (7) and a limiting ring (8). The outer wall of the U-shaped plate (3) is provided with an arc groove (4) that cooperates with the circular rod (6). The outer wall of the U-shaped plate (3) is provided with a limiting groove (5) that cooperates with the limiting ring (8). The outer wall of the circular rod (6) is provided with a vertical groove (10) and an arc groove (11) that cooperate with the circular ring (7). The outer wall of the circular rod (6) is fitted with a reset member (9) that is fixed to the lower surface of the limiting ring (8).

3. The folding device for a drone propeller arm according to claim 2, characterized in that, The inner wall of the circular ring (7) is fixedly connected with a protrusion (12) that slides inside the vertical groove (10) and the arc groove (11).

4. The folding device for a drone propeller arm according to claim 2, characterized in that, The vertical groove (10) and the arc groove (11) are interconnected, and the reset component (9) specifically refers to the reset spring.

5. The folding device for a drone propeller arm according to claim 1, characterized in that, The bottom of the body (1) is symmetrically fixed with two support frames (13).

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