A protection structure of a rotor of a drone

Abstract

The utility model discloses a kind of protective structures of unmanned aerial vehicle rotor, including fuselage, the fuselage four corners are uniformly fixedly connected with rotor support frame, each the other end of rotor support frame is fixedly connected with motor, and the blade is fixedly connected with motor output shaft. The utility model in the process of actual use, protective frame is connected with limiting plate through connecting frame, limiting rod slides in sliding slot, damping rod and spring in inner groove provide elastic buffer, when protective frame is impacted, connecting frame compresses spring and extrudes damping rod, absorbs energy, and the sliding limit position of protective frame still does not contact blade, effectively protects rotor, through-hole guarantees smooth airflow, reduce the influence on blade rotation, the design solves the problem that traditional unmanned aerial vehicle rotor is not protected or rigid protection is easy to damage, elastic buffer structure avoids that external object directly impacts blade, reduces the flight accident risk caused by collision, overall realizes the balance of efficient protection and flight performance.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) rotor technology, specifically a protective structure for UAV rotors. Background Technology

[0002] A protective structure for drone rotors is a protective device specifically designed to ensure the safe operation of the rotor. This structure is typically made of a ring-shaped or cage-like frame of high-strength, lightweight materials, such as carbon fiber or aerospace-grade aluminum alloy, ensuring strength while reducing the drone's load. The inner side of the frame is lined with silicone or EVA cushioning pads to absorb impact forces and prevent direct damage to the rotor. It is securely connected to the drone fuselage via L-shaped mounting brackets and quick-connect clips for easy disassembly and installation. Simultaneously, the protective structure's surface is designed with airflow channels and ventilation holes to reduce wind resistance while providing protection, minimizing the impact on the drone's flight performance, effectively preventing foreign object impacts and scratches, and improving the safety and reliability of drone operations.

[0003] In existing drone applications, rotor protection has many shortcomings. Current drones are not equipped with rotor protection structures. If they encounter obstacles such as tree branches or cables during flight, the blades are easily broken or deformed, causing the drone to lose power and crash. While some designs use rigid protective frames, which can block foreign objects, the rigid structure cannot buffer the impact force during a collision. The impact force is directly transmitted to the blades, which can still cause damage to the blades. In order to solve this technical problem, this utility model proposes a protective structure for drone rotors. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In existing drone applications, rotor protection has many shortcomings. Current drones are not equipped with rotor protection structures. If they encounter obstacles such as tree branches or cables during flight, the blades are easily broken or deformed, causing the drone to lose power and crash. While some designs use rigid protective frames, which can block foreign objects, the rigid structure cannot buffer the impact force during a collision. The impact force is directly transmitted to the blades, which can still cause damage to the blades. In order to solve this technical problem, this utility model proposes a protective structure for drone rotors.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a protective structure for a drone rotor, including a fuselage, with rotor support frames fixedly connected to the four corners of the fuselage, a motor fixedly connected to the other end of each rotor support frame, blades fixedly connected to the output shaft of the motor, and a protective frame provided outside the blades, with multiple through holes opened inside the protective frame.

[0008] Preferably, a limiting plate is fixedly connected to the bottom of the other end of each rotor support frame, a connecting frame is fixedly connected to the inner side wall of the protective frame, an inner groove is opened inside the limiting plate, and the other end of the connecting frame is slidably connected inside the inner groove.

[0009] Preferably, the limiting plate has sliding grooves on both sides, and the other end of the connecting frame has limiting rods fixedly connected to both sides, while the limiting rods are slidably connected inside the sliding grooves.

[0010] Preferably, a damping rod is provided inside the inner groove, and the other end of the damping rod is fixedly connected to one end of the connecting frame.

[0011] Preferably, a spring is sleeved on the outer wall of the damping rod, and the spring is fixedly connected between the connecting frame and the limiting plate.

[0012] Preferably, a pair of support legs are fixedly connected to the bottom of the device body, and a rubber base is fixedly connected to the end of each support leg. A camera is fixedly installed at the bottom of the device body.

[0013] (III) Beneficial Effects

[0014] This utility model provides a protective structure for the rotor of a drone. It has the following beneficial effects:

[0015] (1) The protective frame is connected to the limiting plate via the connecting frame. The limiting rod slides in the groove. The damping rod and spring in the inner groove provide elastic buffer. When the protective frame is impacted, the connecting frame compresses the spring and squeezes the damping rod to absorb energy. The protective frame does not contact the blade at the sliding limit position, effectively protecting the rotor. The through hole ensures smooth airflow and reduces the impact on the rotation of the blade. This design solves the problem of traditional UAV rotors having no protection or being easily damaged by rigid protection. The elastic buffer structure avoids foreign objects directly impacting the blade, reducing the risk of flight accidents caused by collisions. Overall, it achieves a balance between efficient protection and flight performance, improves the adaptability and reliability of UAVs in complex environments, extends the service life of the equipment, and reduces maintenance costs. Attached Figure Description

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

[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the protective frame of this utility model.

[0019] In the diagram: 1. Fuselage; 2. Rotor support frame; 3. Limiting plate; 4. Motor; 5. Blade; 6. Through hole; 7. Protective frame; 8. Connecting frame; 9. Inner groove; 10. Damping rod; 11. Spring; 12. Limiting rod; 13. Slide groove; 14. Support leg; 15. Rubber base; 16. Camera. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1-3 This utility model provides a technical solution:

[0022] Example 1: A protective structure for a drone rotor includes a fuselage 1. Rotor support frames 2 are fixedly connected to each of the four corners of the fuselage 1. A motor 4 is fixedly connected to the other end of each rotor support frame 2. A blade 5 is fixedly connected to the output shaft of the motor 4. A protective frame 7 is provided outside the blade 5, and multiple through holes 6 are opened inside the protective frame 7. A limiting plate 3 is fixedly connected to the bottom of the other end of each rotor support frame 2. A connecting frame 8 is fixedly connected to the inner wall of the protective frame 7. An inner groove 9 is opened inside the limiting plate 3, and the other end of the connecting frame 8 is slidably connected inside the inner groove 9. Both sides of the 3 have sliding grooves 13, and the other two sides of the connecting frame 8 are fixedly connected to limit rods 12. At the same time, the limit rods 12 are slidably connected inside the sliding grooves 13. The inner groove 9 is provided with a damping rod 10. The other end of the damping rod 10 is fixedly connected to one end of the connecting frame 8. The outer wall of the damping rod 10 is fitted with a spring 11, and the spring 11 is fixedly connected between the connecting frame 8 and the limit plate 3. A pair of support legs 14 are fixedly connected to the bottom of the body 1. Each support leg 14 is fixedly connected to a rubber base 15 at its end. A camera 16 is fixedly installed at the bottom of the body 1.

[0023] The protective frame 7 is connected to the limiting plate 3 via the connecting bracket 8. The limiting rod 12 slides along the slide groove 13, forming an elastic buffer structure in conjunction with the damping rod 10 and spring 11 in the inner groove 9. When the protective frame 7 encounters an external impact, the connecting bracket 8 compresses the spring 11 inward and squeezes the damping rod 10, converting the impact force into elastic potential energy and damping dissipation. Even if the protective frame 7 slides to its limit position, it will not touch the blade 5, thus effectively protecting the rotor. The through hole 6 on the protective frame 7 optimizes airflow and ensures that the blade 5 rotates without obstruction. When the drone lands, the support leg 14 and the rubber base 15 absorb the impact force step by step, reducing the vibration of the fuselage. In addition, the camera 16 captures the environmental image in real time to assist the drone in avoiding obstacles. All components work together to comprehensively reduce the risk of rotor damage from external impacts during flight and takeoff and landing, ensuring the stable operation of the drone.

[0024] Working principle: When the drone is running, motor 4 drives blade 5 to rotate at high speed, providing flight power for the drone. The protective frame 7 is connected to the limiting plate 3 through the connecting frame 8. The limiting rod 12 on the connecting frame 8 slides in the slide groove 13. At the same time, the damping rod 10 and spring 11 elastically connect the connecting frame 8 in the inner groove 9. This allows the protective frame 7 to be installed stably and has a certain buffering performance. When the protective frame 7 is hit by an external collision, the connecting frame 8 can compress the spring 11 and squeeze the damping rod 10 in the limiting plate 3 to absorb the impact force and protect the blade 5 from damage. At the same time, the protective frame 7 will not contact the blade 5 when it slides to the end. The design of the through hole 6 ensures smooth airflow when the blade 5 rotates without affecting the protective function. When the drone lands, the support leg 14 and the rubber base 15 play a role in buffering and shock absorption. The camera 16 assists the drone in observing and taking pictures of the environment during flight. Through their cooperation, effective protection of the rotor is achieved, avoiding damage caused by collision with foreign objects during flight.

[0025] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection (motor model: 39BYG001) will not be explained in detail.

[0026] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A protective structure for a drone rotor, characterized in that: Includes fuselage (1), with rotor support frames (2) fixedly connected to each of the four corners of fuselage (1), and motor (4) fixedly connected to the other end of each rotor support frame (2). The output shaft of the motor (4) is fixedly connected to blades (5), and a protective frame (7) is provided on the outside of the blades (5), and multiple through holes (6) are opened inside the protective frame (7).

2. The protective structure for a UAV rotor according to claim 1, characterized in that: Each rotor support frame (2) has a limiting plate (3) fixedly connected to the bottom of the other end. A connecting frame (8) is fixedly connected to the inner wall of the protective frame (7). An inner groove (9) is opened inside the limiting plate (3), and the other end of the connecting frame (8) is slidably connected to the inside of the inner groove (9).

3. The protective structure for a UAV rotor according to claim 2, characterized in that: The limiting plate (3) has a sliding groove (13) on both sides, and the other end of the connecting frame (8) is fixedly connected to the limiting rod (12) on both sides. At the same time, the limiting rod (12) is slidably connected inside the sliding groove (13).

4. The protective structure for a UAV rotor according to claim 3, characterized in that: A damping rod (10) is provided inside the inner groove (9), and the other end of the damping rod (10) is fixedly connected to one end of the connecting frame (8).

5. The protective structure for a UAV rotor according to claim 4, characterized in that: The damping rod (10) is fitted with a spring (11) on its outer wall, and the spring (11) is fixedly connected between the connecting frame (8) and the limiting plate (3).

6. The protective structure for a UAV rotor according to claim 5, characterized in that: A pair of support legs (14) are fixedly connected to the bottom of the body (1), and a rubber base (15) is fixedly connected to the end of each support leg (14). A camera (16) is fixedly installed at the bottom of the body (1).

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