Rotor wing assembly of unmanned aerial vehicle

Abstract

The utility model provides an unmanned aerial vehicle rotor wing assembly, and relates to the technical field of unmanned aerial vehicle wings, the unmanned aerial vehicle rotor wing assembly comprises a sleeve, the inner walls of the two sides of the sleeve are both provided with bending clamping channels, a sliding sleeve is rotatably arranged between the inner walls of the sleeve and close to the top edge, and a cylindrical pipe is rotatably arranged between the inner walls of the sliding sleeve and close to the top edge; a rotary disc is fixed to the top of the cylindrical pipe, a plurality of paddles are fixed to the outer surface of the rotary disc at equal intervals in the circumferential direction, an attaching groove is formed in the top of the rotary disc, and a hexagonal hole is formed in the inner bottom face of the attaching groove and penetrates through the bottom of the cylindrical pipe. And when the blades are damaged, only the cylindrical pipe needs to be taken out from the interior of the sleeve to be replaced, so that the whole wing is prevented from being replaced, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) wing technology, and in particular to a UAV rotor assembly. Background Technology

[0002] Most drones on the market have an integrated connection between the wings and the drone body. The propeller part of the wing can rotate at high speed under the drive of the motor, thereby enabling the drone to fly. The propeller blades are fixedly installed at the wing tip.

[0003] Currently, propellers are one of the most easily damaged components of drones during flight. Most drone propellers and wingtips on the market are fixed, so when a propeller is damaged, the entire wing needs to be replaced, resulting in high maintenance costs. Utility Model Content

[0004] To address the problems in the prior art, this utility model provides a drone rotor assembly.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A drone rotor assembly includes a sleeve with bending grooves on both inner walls. A sliding sleeve is rotatably disposed between the inner walls of the sleeve near the top edge. A cylindrical tube is rotatably disposed between the inner walls of the sliding sleeve near the top edge. A turntable is fixed to the top of the cylindrical tube. Multiple blades are equidistantly fixed on the outer surface of the turntable along the circumferential direction. A fitting groove is formed on the top of the turntable. A hexagonal hole is formed on the bottom surface of the fitting groove, and the hexagonal hole extends to the bottom of the cylindrical tube.

[0007] Optionally, the tops of both bending channels extend to the top of the sleeve, and the bottoms of both bending channels extend to the outer surfaces of both sides of the sleeve.

[0008] Optionally, an annular groove is formed between the inner walls of the sliding sleeve near the top edge, and an annular ring is fixed to the outer surface of the cylindrical tube and slidably engaged inside the annular groove.

[0009] Optionally, a motor is provided between the inner walls of the sleeve near the bottom edge, and a flange ring connected to the bottom of the sleeve is fixed on the outer surface of the motor.

[0010] Optionally, a support ring is fixed between the inner walls of the sleeve, the top of the support ring is in contact with the bottom of the cylindrical tube, and a tray is fixed to the output end of the motor. The tray is located inside the sleeve, and a hexagonal groove is formed on the top of the tray.

[0011] Optionally, a hexagonal rod is provided between the inner walls of the hexagonal hole, the bottom end of the hexagonal rod is engaged inside the hexagonal groove, and a cover plate is provided between the inner walls of the fitting groove.

[0012] Optionally, the bottom of the sliding sleeve is provided with a bevel near both sides, and a spring retainer is provided inside each of the two bevels. One end of each of the two spring retainers is engaged in the bending channel.

[0013] Optionally, a wing frame is fixed to one outer surface of the sleeve, and an insertion interface is provided at one end of the wing frame.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0015] 1. In this utility model, the propeller blade is fixedly installed on the surface of the turntable, and then the turntable is rotatably connected to the inside of the sliding sleeve through a cylindrical tube. The cylindrical tube is prevented from falling out of the sliding sleeve by the interlocking of the annular groove and the annular ring. Then, a spring retaining plate is set inside the bend at the bottom of the cylindrical tube. When the cylindrical tube is slid into the inside of the sleeve, the cylindrical tube can be fixed inside the sleeve by the interlocking of the spring retaining plate and the bending retaining channel. When the propeller blade is damaged, only the cylindrical tube needs to be removed from the inside of the sleeve for replacement, avoiding the need to replace the entire wing and reducing maintenance costs.

[0016] 2. In this utility model, after the cylindrical tube is fixed inside the sleeve, the hexagonal rod is slid into the hexagonal hole so that the bottom of the hexagonal rod extends into the hexagonal groove. Then, the cover plate is installed inside the fitting groove to limit the top of the hexagonal rod. At this time, the turntable and the tray are connected by the hexagonal rod. When the motor rotates, it can drive the hexagonal rod and the turntable to rotate, thereby driving the blade to rotate. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0018] Figure 1 This utility model provides a front-view three-dimensional structural diagram of a drone rotor assembly;

[0019] Figure 2 This utility model provides a bottom-view three-dimensional structural diagram of a drone rotor assembly;

[0020] Figure 3 This utility model provides a cross-sectional three-dimensional structural diagram of the sleeve and sliding sleeve in a UAV rotor assembly;

[0021] Figure 4 For utility model Figure 3 A magnified view of point A in the middle.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Sleeve; 2. Wing frame; 3. Insertion interface; 4. Sliding sleeve; 5. Turntable; 6. Blade; 7. Hexagonal rod; 8. Cover plate; 9. Flange ring; 10. Motor; 11. Tray; 12. Hexagonal groove; 13. Support ring; 14. Fitting groove; 15. Hexagonal hole; 16. Annular groove; 17. Annular ring; 18. Cylindrical tube; 19. Bending guide; 20. Twisted joint; 21. Spring clamp.

[0024] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Example 1, as Figure 1-4 As shown, this utility model provides a technical solution for a drone rotor assembly: including a sleeve 1, with bending grooves 19 on both inner walls of the sleeve 1, a sliding sleeve 4 rotatably disposed between the inner walls of the sleeve 1 near the top edge, a cylindrical tube 18 rotatably disposed between the inner walls of the sliding sleeve 4 near the top edge, a turntable 5 fixed to the top of the cylindrical tube 18, a plurality of blades 6 equidistantly fixed along the circumferential direction on the outer surface of the turntable 5, a fitting groove 14 opened on the top of the turntable 5, a hexagonal hole 15 opened on the inner bottom surface of the fitting groove 14, and the hexagonal hole 15 penetrating to the bottom of the cylindrical tube 18.

[0027] The overall effect of Embodiment 1 is that the blade 6 is fixedly installed on the surface of the turntable 5, and the turntable 5 is rotatably connected to the inside of the sliding sleeve 4 through the cylindrical tube 18. The cylindrical tube 18 can be prevented from falling out of the sliding sleeve 4 by the mutual engagement of the annular groove 16 and the annular ring 17. Then, a spring retainer 21 is set inside the bend 20 at the bottom of the cylindrical tube 18. When the cylindrical tube 18 is slid into the inside of the sleeve 1, the cylindrical tube 18 can be fixed inside the sleeve 1 by the mutual engagement of the spring retainer 21 and the bending retainer 19. When the blade 6 is damaged, it is only necessary to remove the cylindrical tube 18 from the inside of the sleeve 1 for replacement, avoiding the need to replace the entire wing and reducing maintenance costs.

[0028] Example 2, as Figure 1-4As shown, the tops of the two bent channels 19 extend to the top of the sleeve 1, and the bottoms of the two bent channels 19 extend to the outer surfaces of both sides of the sleeve 1. An annular groove 16 is formed between the inner walls of the sliding sleeve 4 near the top edge. An annular ring 17, which slides and engages inside the annular groove 16, is fixed to the outer surface of the cylindrical tube 18. A motor 10 is installed between the inner walls of the sleeve 1 near the bottom edge. A flange ring 9, which connects to the bottom of the sleeve 1, is fixed to the outer surface of the motor 10. A support ring 13 is fixed between the inner walls of the sleeve 1, with the top of the support ring 13 fitting against the bottom of the cylindrical tube 18. The output end of 0 is fixed with a tray 11, which is located inside the sleeve 1. The top of the tray 11 is provided with a hexagonal groove 12. A hexagonal rod 7 is provided between the inner walls of the hexagonal hole 15. The bottom end of the hexagonal rod 7 is engaged inside the hexagonal groove 12. A cover plate 8 is provided between the inner walls of the fitting groove 14. The bottom of the sliding sleeve 4 is provided with a bevel 20 near both sides. A spring clip 21 is provided inside the two bevels 20. One end of the two spring clips 21 is engaged in the bending groove 19. A wing frame 2 is fixed on one outer surface of the sleeve 1. A plug-in interface 3 is provided at one end of the wing frame 2.

[0029] The effect achieved by the entire embodiment 2 is that after the cylindrical tube 18 is fixed inside the sleeve 1, the hexagonal rod 7 is slid into the hexagonal hole 15 so that the bottom of the hexagonal rod 7 extends into the hexagonal groove 12. Then the cover plate 8 is installed inside the fitting groove 14 to limit the top of the hexagonal rod 7. At this time, the turntable 5 and the tray 11 are connected by the hexagonal rod 7. When the motor 10 rotates, it can drive the hexagonal rod 7 and the turntable 5 to rotate, thereby driving the blade 6 to rotate.

[0030] Working principle: The blade 6 is fixedly installed on the surface of the turntable 5. The turntable 5 is then rotatably connected to the inside of the sliding sleeve 4 through the cylindrical tube 18. The cylindrical tube 18 is prevented from falling out of the sliding sleeve 4 by the mutual engagement of the annular groove 16 and the annular ring 17. A spring retainer 21 is set inside the bend 20 at the bottom of the cylindrical tube 18. When the cylindrical tube 18 is slid into the inside of the sleeve 1, the cylindrical tube 18 is fixed inside the sleeve 1 by the mutual engagement of the spring retainer 21 and the bending retainer 19. Then, the hexagonal rod 7 is slid into the inside of the hexagonal hole 15, so that the bottom of the hexagonal rod 7 extends into the inside of the hexagonal groove 12. Then, the cover plate 8 is installed inside the fitting groove 14 to limit the top of the hexagonal rod 7. At this time, the turntable 5 and the tray 11 are connected by the hexagonal rod 7. When the motor 10 rotates, it can drive the hexagonal rod 7 and the turntable 5 to rotate, thereby driving the blade 6 to rotate.

[0031] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A drone rotor assembly comprising a sleeve (1), characterized in that: The inner walls of both sides of the sleeve (1) are provided with bending grooves (19). A sliding sleeve (4) is rotatably arranged between the inner walls of the sleeve (1) near the top edge. A cylindrical tube (18) is rotatably arranged between the inner walls of the sliding sleeve (4) near the top edge. A turntable (5) is fixed at the top of the cylindrical tube (18). Multiple blades (6) are fixed at equal intervals along the circumferential direction on the outer surface of the turntable (5). A fitting groove (14) is provided at the top of the turntable (5). A hexagonal hole (15) is provided on the inner bottom surface of the fitting groove (14). The hexagonal hole (15) extends to the bottom of the cylindrical tube (18).

2. The unmanned aerial vehicle rotor assembly of claim 1, wherein: The tops of the two bending channels (19) extend to the top of the sleeve (1), and the bottoms of the two bending channels (19) extend to the outer surfaces of both sides of the sleeve (1).

3. The unmanned aerial vehicle rotor assembly of claim 1, wherein: An annular groove (16) is provided between the inner walls of the sliding sleeve (4) near the top edge, and an annular ring (17) is fixed on the outer surface of the cylindrical tube (18) and is slidably engaged inside the annular groove (16).

4. The drone rotor assembly of claim 1, wherein: A motor (10) is provided between the inner walls of the sleeve (1) near the bottom edge, and a flange ring (9) connected to the bottom of the sleeve (1) is fixed on the outer surface of the motor (10).

5. The drone rotor assembly of claim 4, wherein: A support ring (13) is fixed between the inner walls of the sleeve (1). The top of the support ring (13) is in contact with the bottom of the cylindrical tube (18). A tray (11) is fixed at the output end of the motor (10). The tray (11) is located inside the sleeve (1). A hexagonal groove (12) is provided on the top of the tray (11).

6. The drone rotor assembly of claim 5, wherein: A hexagonal rod (7) is provided between the inner walls of the hexagonal hole (15), and the bottom end of the hexagonal rod (7) is engaged inside the hexagonal groove (12). A cover plate (8) is provided between the inner walls of the fitting groove (14).

7. The drone rotor assembly of claim 2, wherein: The bottom of the sliding sleeve (4) is provided with a bevel (20) near the two side edges. A spring plate (21) is provided inside the two bevels (20). One end of the two spring plates (21) is engaged in the bending channel (19).

8. The drone rotor assembly of claim 1, wherein: The outer surface of one side of the sleeve (1) is fixed with a wing frame (2), and one end of the wing frame (2) is provided with an insertion interface (3).

Images