Propeller clamping and locking structure and unmanned aerial vehicle

Abstract

The utility model discloses a propeller locking structure and an unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicle propellers, the propeller locking structure comprises a base and a propeller hinged above the base, the propeller can rotate to a folding position and an unfolding position, and the outer side of the propeller is provided with a limiting assembly used for keeping the propeller at the unfolding position. The limiting assembly comprises a movable limiting piece located on the outer side of the propeller, when the limiting piece moves to the limiting position, the propeller is locked at the unfolding position, when the limiting piece moves to the unlocking position, the propeller is unlocked, and the limiting assembly further comprises an elastic piece which is located on the outer side of the propeller and enables the limiting piece to be kept at the limiting position. The limiting assembly further comprises an elastic piece which is located on the outer side of the propeller and enables the limiting piece to be kept at the limiting position, the propeller can be stably kept at the unfolding position through the limiting assembly, and the propeller cannot be affected by external force such as water flow in the working process; and when the unmanned aerial vehicle flies on the water surface, the propellers cannot be knocked back to the folding positions.

Description

Technical Field

[0001] The utility model relates to the technical field of drone propellers, in particular to a propeller locking structure and a drone. Background Art

[0002] With the rapid development of the global drone industry, drone technology has become more and more mature, and the application scope of drones has also become more and more extensive. At the same time, since drones are generally not convenient to carry, people need to use special drone storage bags to carry drones. Therefore, a type of drone with foldable propellers and propeller arms has emerged on the market. The propellers of this type of drone are in a folded state when not started, and will expand outward due to centrifugal force after startup, so that it can take off normally. However, the propellers of this type of drone are easily affected during flight. For example, when flying close to the water surface, the splashing water flow easily hits the propellers, causing the propellers to be beaten back to the folded state, resulting in the destruction of the lift of the drone and the fall of the drone. Content of the Utility Model

[0003] The utility model aims to provide a technical solution for foldable propellers that will not be affected by external objects to overcome the above-mentioned situations.

[0004] To achieve the above object, the utility model provides the following technical solution: A propeller locking structure includes a base, a propeller located on the base, and a motor base provided below the base. When the propeller rotates to the folded position, it cannot work. When the propeller rotates to the unfolded position, it can work normally. A limiting component for keeping the propeller in the unfolded position is provided on the outer side of the propeller. The limiting component includes a movable limiting member located on the outer side of the propeller. When the limiting member moves to the limiting position, the propeller can be locked in the unfolded position. When the limiting member moves to the unlocking position, the propeller can be unlocked. The limiting component further includes an elastic member located on the outer side of the propeller to keep the limiting member in the limiting position.

[0005] As a further solution of the utility model: The propeller includes a limiting hole located on the outer side of the propeller and cooperating with the limiting member.

[0006] As a further solution of the utility model: A blocking block for locking the propeller on the base is provided on the outer side of the propeller, and the limiting component is located inside the blocking block.

[0007] As a further solution of the utility model: A taking member for driving the limiting member to move is provided on the outer side of the blocking block, and the force-receiving end of the limiting component is located inside the taking member.

[0008] As a further solution of the present utility model: The limiting component further includes a connecting column located on the limiting member, the elastic member is arranged outside the connecting column, and the stopper is provided with an activity cavity for the limiting component to move.

[0009] As a further solution of the present utility model: A bolt installed by threading is arranged outside the connecting column, and the top end of the bolt extends into the taking member to form the stress end of the limiting component.

[0010] As a further solution of the present utility model: Screws are arranged outside the stopper, the screws penetrate through the propeller, and threaded holes matched with the screws are arranged outside the base.

[0011] As a further solution of the present utility model: A support connecting column is arranged on the base, and the support connecting column and the stopper are fixed by bolts.

[0012] As a further solution of the present utility model: The propellers are divided into two groups and are symmetrically arranged.

[0013] An unmanned aerial vehicle includes the propeller locking structure as described above.

[0014] Compared with the prior art, the beneficial effects of the present technical solution are as follows: The propeller can be stably maintained in the unfolded position through the limiting component, so that the propeller will not be affected by external forces such as water flow during operation, and the propeller will not be retracted to the folded position when the unmanned aerial vehicle flies on the water surface.

[0015] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is the three-dimensional structure diagram of the present utility model;

[0018] Figure 2 is the exploded effect diagram of the structure of the present utility model;

[0019] Figure 3 is the three-dimensional structure diagram of the limiting component of the present utility model;

[0020] Figure 4 is the three-dimensional structure of the motor base of the present utility modelFigure 1 ;

[0021] Figure 5 is the three-dimensional view of the motor base of the present utility model Figure 2 ;

[0022] Figure 6 is the three-dimensional view of the stopper of the present utility model;

[0023] Figure 7 is Figure 2 the enlarged view at position A in

[0024] The corresponding reference numerals in the drawings are described as follows:

[0025] 1. Base; 11. Threaded hole; 12. Support connection column; 13. Motor base; 2. Propeller; 21. Limit hole; 3. Limit assembly; 31. Limiting member; 32. Elastic member; 33. Taking member; 34. Connection column; 35. Bolt; 4. Stopper; 41. Screw; 42. Activity cavity. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] This embodiment provides a drone, which includes a propeller locking structure as shown in Figures 1 to 7 . A propeller locking structure includes a base 1 and a propeller 2 located on the base 1. A motor base 13 is provided below the base 1. The motor base 13 is used to be installed on the arm of the drone. When the propeller 2 rotates to the folded position, it is convenient for storage. When the propeller 2 rotates to the unfolded position, it can work normally. A limiting assembly 3 for keeping the propeller 2 in the unfolded position is provided outside the propeller 2. The limiting assembly includes a movable limiting member 31 located outside the propeller 2. When the limiting member 31 moves to the limiting position, the propeller 2 can be locked in the unfolded position or the folded position. When the limiting member 31 moves to the unlocking position, the propeller 2 can be unlocked. The limiting assembly 3 further includes an elastic member 32 located outside the propeller 2 to keep the limiting member 31 in the limiting position. Through the limiting assembly, the propeller can be stably held in the unfolded position, so that the propeller will not be affected by external forces such as water flow during work, reducing the risk of the drone falling;

[0028] In some embodiments, the propeller 2 includes a limiting hole 21 located on the outer side of the propeller 2 and cooperating with the limiting member 31. A stopper 4 for locking the propeller 2 to the base 1 is provided on the outer side of the propeller 2. The limiting assembly 3 is located inside the stopper 4. The propeller 2 is divided into two groups and is symmetrically arranged. A taking member 33 for driving the limiting member 31 to move is provided on the outer side of the stopper 4. The stress end of the limiting assembly 3 is located inside the taking member 33. The limiting assembly 3 further includes a connecting column 34 located on the limiting member 31. An elastic member 32 is provided on the outer side of the connecting column 34. The stopper 4 is provided with a moving cavity 42 for the limiting assembly 3 to move. A screw 41 is provided on the outer side of the stopper 4. The screw 41 penetrates through the propeller 2. A threaded hole 11 cooperating with the screw 41 is provided on the outer side of the base 1. A bolt 35 installed by threading is provided on the outer side of the connecting column 34. The top end of the bolt 35 extends into the taking member 33 to form the stress end of the limiting assembly 3. When moving the propeller 2 to the folded position, grasp the taking member 33. After grasping, pull the taking member 33 in a direction away from the stopper 4. When the taking member 33 moves, it will drive the bolt 35 to move together. When the bolt 35 moves, it will drive the connecting column 34 to move. When the connecting column 34 moves, it will drive the limiting member 31 to leave the inside of the limiting hole 21. When the limiting member 31 leaves the inside of the limiting hole 21, the limiting and fixing of the propeller 2 are released, allowing the propeller 2 to move from the unfolded position to the folded position, facilitating the storage and placement of the propeller 2. When the propeller 2 needs to be in the unfolded position, first release the limiting and fixing of the propeller 2 to make the propeller 2 move from the folded position to the unfolded position. When the propeller 2 is in the unfolded position, the position of the limiting hole 21 will correspond to the position of the limiting member 31. At this time, release the taking member 33 to make the elastic member 32 start to recover. When the elastic member 32 recovers, it will bring the connecting column 34 back to its original position. When the connecting column 34 returns to its original position, it will bring the limiting member 31 into the inside of the limiting hole 21 to limit and fix the propeller 2. At the same time, the elastic member 32 can keep the limiting member 31 inside the limiting hole 21, enabling the propeller 2 to be stably in the unfolded position and allowing the propeller 2 to work properly.

[0029] Furthermore, a supporting connecting column 12 is provided on the base 1, and the supporting connecting column 12 is fixed to the block 4 by bolts. When the propeller 2 needs to be replaced, the screw 41 is rotated in the opposite direction, and the screw 41 will leave the threaded hole 11 after rotation. When the screw 41 leaves the threaded hole 11, the bolt fixation between the block 4 and the supporting connecting column 12 is released, so that the block 4 can be disassembled to expose the propeller 2 under the block 4, so that the propeller 2 can be replaced. After the replacement is completed, the connection between the propeller 2 and the screw 41 is aligned with the threaded hole 11, and the block 4 is placed above the propeller 2 after alignment. When placed, the screw 41 will pass through the propeller 2 and contact the threaded hole 11. At this time, the screw 41 is rotated forward to make the screw 41 enter the threaded hole 11, and then the block 4 is fixed to the supporting connection 12 by bolts, thereby completing the installation of the block 4 and ensuring that the propeller 2 cannot be separated from the base 1.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A propeller locking structure, characterized in that, It includes a base (1) and a propeller (2) hinged above the base (1). The propeller (2) can be rotated to a folded position and an unfolded position. A limiting component (3) for keeping the propeller (2) in the unfolded position is provided on the outer side of the propeller (2). The limiting component (3) includes a movable limiting member (31) located on the outer side of the propeller (2). When the limiting member (31) moves to the limiting position, the propeller (2) is locked in the unfolded position. When the limiting member (31) moves to the unlocking position, the propeller (2) is unlocked. The limiting component (3) further includes an elastic member (32) located on the outer side of the propeller (2) for keeping the limiting member (31) in the limiting position.

2. The propeller locking structure according to claim 1, characterized in that, The propeller (2) includes a limiting hole (21) located on the outer side of the propeller (2) and cooperating with the limiting member (31).

3. The propeller locking structure according to claim 1, characterized in that, A stopper (4) for preventing the propeller (2) from detaching from the base (1) is provided on the outer side of the propeller (2). The propeller (2) is hinged to the stopper (4), and the limiting component (3) is located inside the stopper (4).

4. The propeller locking structure according to claim 3, characterized in that, A taking member (33) for driving the limiting member (31) to move is provided on the outer side of the stopper (4). The force-receiving end of the limiting component (3) is located inside the taking member (33).

5. The propeller locking structure according to claim 4, characterized in that, The limiting component (3) further includes a connecting column (34) located on the limiting member (31). The elastic member (32) is provided on the outer side of the connecting column (34). The stopper (4) is provided with an activity cavity (42) for the limiting component (3) to move.

6. The propeller locking structure according to claim 5, characterized in that, A bolt (35) is installed on the outer side of the connecting column (34) by threading. The top end of the bolt (35) extends into the taking member (33) to form the force-receiving end of the limiting component (3).

7. The propeller locking structure according to claim 3, characterized in that, A screw (41) is provided on the outer side of the stopper (4). The screw (41) passes through the propeller (2), and a threaded hole (11) cooperating with the screw (41) is provided on the outer side of the base (1).

8. The propeller locking structure according to claim 3, characterized in that, A support connecting column (12) is provided on the base (1). The support connecting column (12) and the stopper (4) are fixed by bolts.

9. The propeller locking structure according to claim 1, characterized in that, Two propellers (2) are provided on the base (1), and the two propellers (2) are symmetrically arranged relative to the base (1).

10. A drone, characterized in that, It includes the propeller locking structure according to any one of claims 1-9.

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