Anti-collision device for flight of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of aircraft equipment, in particular to an anti-collision device for flight of an unmanned aerial vehicle, which comprises a fuselage, propellers are arranged at four corners of the fuselage, side protection rings are annularly arranged outside the propellers, and first buffer components are sleeved outside the side protection rings. The outer surfaces of the four side protection rings make contact with the inner surface of the first buffering assembly, and second buffering assemblies are arranged on the outer side surface of the first buffering assembly at equal intervals. According to the anti-collision device for flight of the unmanned aerial vehicle, an annular structure similar to a bearing is additionally arranged outside an existing unmanned aerial vehicle, an external spring, a telescopic rod and a protective plate are matched, impact force can be greatly eliminated through rotation and the spring when the aircraft collides at different angles, and the situation that a fuselage deviates and steers greatly due to collision can be prevented; and the stability of the fuselage during collision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft equipment, in particular to an anti-collision device for unmanned aerial vehicle flight. Background Art

[0002] A drone is a small, remote-controlled aircraft with strong functionality. It can be equipped with a camera to remotely transmit real-time images, and can also be used for remote control of material transportation. It is easy to operate and is widely used in agricultural spraying irrigation, landform surveys, urban planning and even security fields. It can complete a large amount of work without putting people in danger.

[0003] Currently, existing drone aircraft basically only use side protection rings as a means of anti-collision protection for propellers. Although a single protection ring will not directly cause impact to the device body after a collision, the impact force will still cause large vibrations and large steering deviations to the aircraft, and lacks the function of buffering and absorbing the impact force.

[0004] In order to solve the above problems, we have made improvements and proposed an anti-collision device for UAV flight. Utility Model Content

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The utility model provides an anti-collision device for unmanned aerial vehicle flight, comprising a fuselage, wherein propellers are arranged at the four corners of the fuselage, the outer ring of the propeller is provided with a side protection ring, the outer sleeve of the side protection ring is provided with a first buffer component, the outer surfaces of the four side protection rings are in contact with the inner surface of the first buffer component, and the outer surface of the first buffer component is provided with a second buffer component at equal intervals.

[0007] As an optimal technical solution of the present invention, wings are fixedly installed on the left and right sides of the front and rear ends of the fuselage by screws, the ends of the wings are fixedly installed with motor compartments, the interiors of the motor compartments are fixedly installed with motors, the bottom center of the propeller is rotatably connected to the top of the motor compartment, and the rotating shaft of the propeller is coaxially fixedly connected to the rotating shaft of the motor.

[0008] As an optimal technical solution of the present invention, the outer surface of the side protective ring close to the end of the fuselage is fixedly connected to the surface of the fuselage by screws, and connecting rods are fixedly provided at equal intervals on the inner bottom of the side protective ring, and the other end of the connecting rods is fixedly connected to the top of the motor compartment.

[0009] As a preferred technical solution of the present invention, the first buffer assembly includes a fixed inner ring and a rotating outer ring. The inner surface of the fixed inner ring is fixedly connected to the outer surfaces of the four side protective rings by screws. An annular ball groove is provided in the middle of the outer surface of the fixed inner ring and the middle of the inner surface of the rotating outer ring. The inner surface of the rotating outer ring is docked with the outer surface of the fixed inner ring.

[0010] As a preferred technical solution of the present invention, balls are rolled inside the ball groove, annular roller grooves are provided on the top and bottom of the inner surface of the rotating outer ring, small rollers are rotatably provided inside the roller grooves at equal intervals, annular wheel-rail grooves are provided on the top and bottom of the outer surface of the fixed inner ring, the small rollers are in contact with the inner surface of the wheel-rail groove, and the inner side of the rotating outer ring and the outer side of the fixed inner ring are rotatably connected through the wheel-rail groove and the small rollers.

[0011] As a preferred technical solution of the present invention, the second buffer assembly includes a limiting telescopic rod, the sleeve end of the limiting telescopic rod is fixedly connected to the outer surface of the rotating outer ring by a screw, a buffer spring is fixedly arranged on the right side of the sleeve end of the limiting telescopic rod, the telescopic rod end of the limiting telescopic rod passes through the buffer spring, and the end of the telescopic rod end of the limiting telescopic rod is fixedly installed with an anti-collision guard plate by a screw, the other end of the buffer spring is fixedly connected to the anti-collision guard plate, and the anti-collision guard plate is arc-shaped.

[0012] The beneficial effect of the utility model is that the anti-collision device for UAV flight is equipped with a ring structure similar to a bearing on the outside of the existing UAV aircraft, and cooperates with the external spring, telescopic rod and guard plate. It can realize that when the aircraft collides at different angles, the impact force can be greatly dissipated through rotation and springs, and the fuselage can be prevented from deviating and turning significantly due to collision, thereby improving the stability of the fuselage during collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the top view of the anti-collision device for UAV flight of the utility model;

[0015] Figure 2 This is a schematic diagram of the right end partial cross-sectional structure of an anti-collision device for UAV flight of the utility model;

[0016] Figure 3 This is an enlarged structural diagram of a partial cross-section A at the right end of an anti-collision device for UAV flight of the utility model;

[0017] In the figure: 1. Fuselage; 2. Wing; 3. Motor compartment; 4. Propeller; 5. Side protection ring; 6. First buffer assembly; 7. Fixed inner ring; 8. Rotating outer ring; 9. Ball groove; 10. Ball; 11. Roller groove; 12. Small roller; 13. Wheel-rail groove; 14. Second buffer assembly; 15. Limit telescopic rod; 16. Buffer spring; 17. Anti-collision guard plate. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0019] Example: Figure 1-3 As shown, an anti-collision device for unmanned aerial vehicle flight includes a fuselage 1, and propellers 4 are provided at the four corners of the fuselage 1. The outer ring of the propeller 4 is provided with a side protection ring 5, and the outer sleeve of the side protection ring 5 is provided with a first buffer component 6. The outer surfaces of the four side protection rings 5 ​​are in contact with the inner surface of the first buffer component 6, and the outer surface of the first buffer component 6 is provided with second buffer components 14 at equal intervals.

[0020] The wings 2 are fixedly installed on the left and right sides of the front and rear ends of the fuselage 1 by screws, the ends of the wings 2 are fixedly installed with motor compartments 3, the interior of the motor compartments 3 are fixedly installed with motors, the bottom center of the propeller 4 is rotatably connected to the top of the motor compartment 3, and the rotating shaft of the propeller 4 is coaxially fixedly connected to the rotating shaft of the motor.

[0021] The outer surface of the side protective ring 5 close to the fuselage 1 is fixedly connected to the surface of the fuselage 1 by screws, and connecting rods are fixedly provided at equal intervals on the inner bottom of the side protective ring 5, and the other end of the connecting rod is fixedly connected to the top of the motor compartment 3.

[0022] The first buffer assembly 6 includes a fixed inner ring 7 and a rotating outer ring 8. The inner surface of the fixed inner ring 7 is fixedly connected to the outer surfaces of the four side protective rings 5 ​​by screws. An annular ball groove 9 is provided in the middle of the outer surface of the fixed inner ring 7 and the middle of the inner surface of the rotating outer ring 8. The inner surface of the rotating outer ring 8 is docked with the outer surface of the fixed inner ring 7.

[0023] Balls 10 are rolled inside the ball groove 9, annular roller grooves 11 are provided at the top and bottom of the inner surface of the rotating outer ring 8, small rollers 12 are rotatably provided inside the roller groove 11 at equal intervals, annular wheel-rail grooves 13 are provided at the top and bottom of the outer surface of the fixed inner ring 7, the small rollers 12 are in contact with the inner surface of the wheel-rail groove 13, and the inner side of the rotating outer ring 8 and the outer side of the fixed inner ring 7 are rotatably connected through the wheel-rail groove 13 and the small rollers 12.

[0024] The second buffer assembly 14 includes a limiting telescopic rod 15, the sleeve end of the limiting telescopic rod 15 is fixedly connected to the outer surface of the rotating outer ring 8 by screws, a buffer spring 16 is fixedly provided on the right side of the sleeve end of the limiting telescopic rod 15, the telescopic rod end of the limiting telescopic rod 15 passes through the buffer spring 16, and the end of the telescopic rod end of the limiting telescopic rod 15 is fixedly installed with an anti-collision guard plate 17 by screws, and the other end of the buffer spring 16 is fixedly connected to the anti-collision guard plate 17, and the anti-collision guard plate 17 is arc-shaped.

[0025] Working principle: This type of anti-collision device for UAV flight, when a collision occurs during remote control flight, the anti-collision guard plate 17 plays the first layer of impact resistance. At this time, the buffer spring 16 and the limiting telescopic rod 15 cooperate with each other to alleviate the impact caused by the collision and allow the aircraft equipment to bounce off the collision surface to a certain extent. At the same time, when a collision or scratch occurs, the rotating outer ring 8 of the first buffer component 6 can achieve a certain degree of rotation on the outer surface of the fixed inner ring 7 through the internal ball groove 9, the bearing structure of the ball 10 and the small roller 12 and the wheel-rail groove 13 under the impact of different angles, further consuming the impact force, and to a large extent preventing the fuselage 1 from deflecting and turning due to impacts at different angles.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A collision avoidance device for unmanned aerial vehicle flight, comprising a fuselage (1), characterized in that: The four corners of the fuselage (1) are each provided with a propeller (4), the outer ring of the propeller (4) is provided with a side protection ring (5), the outer sleeve of the side protection ring (5) is provided with a first buffer component (6), the outer surfaces of the four side protection rings (5) are in contact with the inner surface of the first buffer component (6), and the outer surface of the first buffer component (6) is provided with a second buffer component (14) at equal intervals.

2. The anti-collision device for unmanned aerial vehicle flight according to claim 1, characterized in that: Wings (2) are fixedly mounted on both the left and right sides of the front and rear ends of the fuselage (1) by screws, motor compartments (3) are fixedly mounted at the ends of the wings (2), a motor is fixedly mounted inside the motor compartments (3), the bottom center of the propeller (4) is rotatably connected to the top of the motor compartment (3), and the rotating shaft of the propeller (4) is coaxially fixedly connected to the rotating shaft of the motor.

3. The anti-collision device for unmanned aerial vehicle flight according to claim 2, characterized in that: The outer surface of the side protection ring (5) at one end close to the fuselage (1) is fixedly connected to the surface of the fuselage (1) by screws, and connecting rods are fixedly provided at equal intervals on the inner bottom of the side protection ring (5), and the other end of the connecting rod is fixedly connected to the top of the motor compartment (3).

4. The anti-collision device for unmanned aerial vehicle flight according to claim 1, characterized in that: The first buffer assembly (6) includes a fixed inner ring (7) and a rotating outer ring (8), the inner surface of the fixed inner ring (7) is fixedly connected to the outer surfaces of the four side protection rings (5) by screws, and an annular ball groove (9) is provided in the middle of the outer surface of the fixed inner ring (7) and the middle of the inner surface of the rotating outer ring (8), and the inner surface of the rotating outer ring (8) is docked with the outer surface of the fixed inner ring (7).

5. The anti-collision device for unmanned aerial vehicle flight according to claim 4, characterized in that: The ball groove (9) is provided with a rolling ball (10), the top and bottom of the inner surface of the rotating outer ring (8) are provided with an annular roller groove (11), and small rollers (12) are provided in the roller groove (11) at equal intervals. The top and bottom of the outer surface of the fixed inner ring (7) are provided with an annular wheel-rail groove (13), and the small rollers (12) are in contact with the inner surface of the wheel-rail groove (13). The inner side of the rotating outer ring (8) and the outer side of the fixed inner ring (7) are rotatably connected through the wheel-rail groove (13) and the small rollers (12).

6. The anti-collision device for unmanned aerial vehicle flight according to claim 5, characterized in that: The second buffer assembly (14) includes a limiting telescopic rod (15), the sleeve end of the limiting telescopic rod (15) is fixedly connected to the outer surface of the rotating outer ring (8) by screws, a buffer spring (16) is fixedly provided on the right side of the sleeve end of the limiting telescopic rod (15), the telescopic rod end of the limiting telescopic rod (15) passes through the buffer spring (16), and an anti-collision guard plate (17) is fixedly installed at the end of the telescopic rod end of the limiting telescopic rod (15) by screws, the other end of the buffer spring (16) is fixedly connected to the anti-collision guard plate (17), and the anti-collision guard plate (17) is arc-shaped.

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