An unmanned aerial vehicle flight anti-collision device
Patent Information
- Application Number
- CN202521845785.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-08-28
AI Technical Summary
[0005]上述无人机防护装置通过在底部安置多组缓冲脚垫起到底部的缓冲防撞,而在扇叶部分仅安置有半弧状的防护板结构,来对扇叶外侧进行保护,这就导致在飞行过程中无法对扇叶提供全方位的防护,存在飞行中接触树枝或遭到碰撞感染等隐患,为此提出了一种无人机飞行防撞装置
[0015] 1. This utility model consists of rotor brackets, rotor seats, and outer buffer rings distributed around the main body of the drone. The rotor seats and the top cover fixed at the top form protection around the rotor blades. Both the rotor seats and the top cover adopt a hollow structure, which does not affect the normal driving flight of the drone while reducing its own weight. At the same time, the telescopic rods connected around the rotor seats can elastically extend and retract, and the buffer sleeve can form a damping effect in case of impact. Together with the outer buffer ring, it provides buffer protection in all directions. It can provide multi-angle and multi-directional protection during flight, avoid the rotor from being affected, and maintain a stable flight process.
Smart Images

Figure CN224715247U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a UAV flight collision avoidance device. Background Technology
[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and onboard program control devices, or operated autonomously, either completely or intermittently, by an onboard computer. Many photography enthusiasts now enjoy using drones for aerial photography. For wingless drones, flight is mainly achieved through the rotation of the blades, making the blades crucial for flight safety. However, when conducting aerial photography in forests, the drone blades lack protective measures, and the abundance of branches makes it difficult for operators to accurately assess the drone's surroundings. This can easily lead to the drone hitting branches and crashing. Therefore, protecting the drone blades is essential.
[0003] Existing technology, such as the patent with publication number CN222247757U, discloses a drone flight anti-collision device, including a drone. Four connecting rods are installed on the outer wall of the drone in a ring and are equally spaced. A power mechanism is installed at the end of each connecting rod. A base is fixed to the bottom of the drone. The cross-section of the base is an isosceles trapezoidal structure and a groove is opened inward in the middle of the bottom surface. The groove is a trapezoidal groove and a buffer frame is installed inside the groove. Several buffer pads are installed on both sides of the bottom surface of the base.
[0004] While the aforementioned existing technologies have significant beneficial effects, they still have shortcomings:
[0005] The aforementioned drone protection device provides bottom cushioning and collision protection by installing multiple sets of buffer pads at the bottom, while only a semi-circular protective plate structure is installed on the fan blade to protect the outer side of the fan blade. This results in the inability to provide all-round protection for the fan blade during flight, which may lead to risks such as contact with tree branches or collision infection during flight. Therefore, a drone flight collision protection device is proposed. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a drone flight collision avoidance device, which consists of rotor brackets distributed around the drone body, rotor mounts, and an outer buffer ring. The rotor mounts and the top cover fixed at the top form protection around the rotor blades, and the outer buffer ring provides buffer protection in all directions. It can provide multi-angle and multi-directional protection during flight to prevent the rotor from being affected.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a drone flight anti-collision device, comprising a drone body, a rotor anti-collision mechanism fixed around the drone body, the rotor anti-collision mechanism comprising a rotor bracket, a motor base fixed at one end of the rotor bracket, a footrest fixed at the bottom end of the motor base, a rotor seat fixed at the top end of the motor base, a rotor blade shafted to the top end of the rotor seat, a top cover fixed around the top surface of the rotor seat, outer buffer rings distributed around the edges of the rotor seat, a buffer rubber layer adhered to the outer wall of the outer buffer rings, a telescopic rod connected around the inner wall of the outer buffer rings, a telescopic post telescopically connected to one end of the telescopic rod, a spring embedded in the inner wall of the telescopic post, and a buffer sleeve fixed to the end of the telescopic post.
[0008] Preferably, the motor base and the stand are fixedly connected to one end of the rotor bracket, and the stand is made of soft rubber.
[0009] Preferably, the top surface of the motor base is fixedly connected to the rotor base, and the rotor blades form a rotating structure through the motor base and the rotor support.
[0010] Preferably, the outer buffer ring is connected to the four peripheral ends of the rotor seat through telescopic rods around the inner wall, and the telescopic rods are equidistantly arranged around the rotor seat.
[0011] Preferably, the telescopic rod forms an elastic telescopic structure with the telescopic pile via a spring, and one end of the telescopic pile is fixedly connected to the buffer sleeve.
[0012] Preferably, the drone body includes a drone frame, and a base frame is fixed to the bottom of one end of the drone frame. Soft rubber blocks are fixed to both sides of the bottom of the base frame, and a buffer sheet is fixed to the bottom of the soft rubber blocks.
[0013] Preferably, the base frame is fixed to one side of the bottom of the drone frame, and the buffer sheet forms an elastic structure with the base frame through soft rubber blocks.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. This utility model consists of rotor brackets, rotor seats, and outer buffer rings distributed around the main body of the drone. The rotor seats and the top cover fixed at the top form protection around the rotor blades. Both the rotor seats and the top cover adopt a hollow structure, which does not affect the normal driving flight of the drone while reducing its own weight. At the same time, the telescopic rods connected around the rotor seats can elastically extend and retract, and the buffer sleeve can form a damping effect in case of impact. Together with the outer buffer ring, it provides buffer protection in all directions. It can provide multi-angle and multi-directional protection during flight, avoid the rotor from being affected, and maintain a stable flight process.
[0016] 2. This drone flight collision avoidance device provides a bottom collision avoidance structure during takeoff and landing through the base frame fixedly connected to the bottom of the drone frame. The buffer plate at the bottom of the base frame can provide protection when it touches the ground or is bumped. In addition, the soft rubber block can provide a certain degree of cushioning when it is bumped, relying on the elastic structure of the soft rubber block itself, thereby reducing the impact of the impact force, maintaining the stability of the takeoff and landing process and protecting the bottom of its own structure.
[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the main body of the UAV of this utility model;
[0019] Figure 2 This is a three-dimensional structural diagram of the rotor support of this utility model;
[0020] Figure 3 This is a side view of the internal structure of the rotor support of this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the telescopic rod in the rotor support of this utility model.
[0022] In the diagram: 1. Drone body; 101. Drone frame; 102. Base frame; 103. Soft rubber block; 104. Buffer plate; 2. Rotor anti-collision mechanism; 201. Rotor bracket; 202. Motor base; 203. Stand; 204. Rotor base; 205. Rotor blade; 206. Top cover; 207. Outer buffer ring; 208. Buffer rubber layer; 209. Telescopic rod; 210. Telescopic stake; 211. Spring; 212. Buffer sleeve. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-4This embodiment of a drone flight anti-collision device includes a drone body 1, a rotor anti-collision mechanism 2 fixed around the drone body 1, the drone body 1 includes a drone frame 101, and a base frame 102 is fixed to the bottom of one end of the drone frame 101. Soft rubber blocks 103 are fixed to both sides of the bottom of the base frame 102, and a buffer sheet 104 is fixed to the bottom of the soft rubber blocks 103.
[0025] like Figure 1-4 As shown, the drone flight collision avoidance device in this utility model is structurally similar to existing drone flight collision avoidance devices, such as the drone flight collision avoidance device disclosed in CN222247757U. The main improvement of this utility model lies in the fact that it is composed of rotor brackets 201, rotor seats 204, and outer buffer rings 207 distributed around the drone body 1. The rotor seats 204 and the top outer cover 206 fixed at the top can form protection around the rotor blades 205. Together with the outer buffer ring 207, it provides buffer protection in all four directions, providing multi-angle and multi-directional protection during flight, avoiding collisions. The rotor is not affected; the drone frame 101 and motor mount 202 in this utility model are both existing technologies. When using this drone flight anti-collision device, the base frame 102 fixedly connected to the bottom of the drone frame 101 can provide a bottom anti-collision structure during take-off and landing. The buffer plate 104 at the bottom of the base frame 102 can provide protection when it touches the ground or is bumped. In addition, the soft rubber block 103 can provide a certain degree of cushioning when it is bumped, relying on the elastic structure of the soft rubber block 103 itself, thereby reducing the impact of the force caused by the bump, maintaining the stability of the take-off and landing process and protecting the bottom of its own structure.
[0026] like Figure 2-4As shown, the rotor anti-collision mechanism 2 includes a rotor support 201. A motor base 202 is fixed to one end of the rotor support 201, and a footrest 203 is fixed to the bottom end of the motor base 202. A rotor seat 204 is fixed to the top end of the motor base 202, and a rotor blade 205 is axially connected to the top end of the rotor seat 204. A top cover 206 is fixed around the top surface of the rotor seat 204, and outer buffer rings 207 are distributed around the edges of the rotor seat 204. A buffer rubber layer 208 is attached to the outer wall of the outer buffer rings 207, and a telescopic rod 209 is connected to the inner wall of the outer buffer rings 207. One end of the telescopic rod 209 is telescopically connected to... The telescopic stake 210 has a spring 211 embedded in its inner wall, and a buffer sleeve 212 is fixed to its end. During flight, the motor mounts 202 mounted on the rotor brackets 201 around the drone simultaneously function, and the motor mounts 202 drive the rotor blades 205 to rotate and generate lift. During flight, when the four edges come into contact with collision objects such as tree branches, external protection is provided by the perforated top cover 206. The bottom surface of the rotor mount 204 also has a perforated structure around its perimeter, which does not affect the normal flight drive of the rotor. After being impacted from all sides, its outer buffer ring 207... The buffer rubber layer 208 on the surface first receives external impact force, providing initial buffering. Then, the outer buffer ring 207 provides further protection. Simultaneously, as the outer buffer ring 207 is affected by the force, it coordinates with the telescopic rod 209 connected to the inner wall to extend and retract in the corresponding impact direction for buffering. The telescopic rod 209 compresses and buffers when it contacts the spring 211 after extension and retraction. When it retracts to a certain position, the inner wall of the outer buffer ring 207 contacts the rubber buffer sleeve 212, achieving secondary internal buffering, thus providing damping and further reducing the impact of the force. This UAV flight collision avoidance device utilizes rotor brackets 200 distributed around the UAV body 1. The system consists of a rotor mount 204 and an outer buffer ring 207. The rotor mount 204 and the top cover 206 fixed at the top can form protection around the rotor blade 205. Both the rotor mount 204 and the top cover 206 adopt a hollow structure, which reduces the weight of the UAV without affecting its normal flight. At the same time, the telescopic rod 209 connected around the rotor mount 204 can elastically extend and retract, and the buffer sleeve 212 can form a damping effect when there is an impact. Together with the outer buffer ring 207, it can provide buffer protection in all directions. It can provide multi-angle and multi-directional protection during flight, avoid the rotor from being affected, and maintain a stable flight process.
[0027] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A drone flight collision avoidance device, comprising a drone body (1), characterized in that, The main body (1) of the UAV is fixed with a rotor anti-collision mechanism (2) around its perimeter. The rotor anti-collision mechanism (2) includes a rotor support (201). One end of the rotor support (201) is fixed with a motor mount (202), and the bottom end of the motor mount (202) is fixed with a stand (203). The top end of the motor mount (202) is fixed with a rotor mount (204), and the top end of the rotor mount (204) is axially connected with a rotor blade (205). The top surface of the rotor mount (204) is fixed with... The top cover (206) and the rotor seat (204) are surrounded by outer buffer rings (207), and the outer walls of the outer buffer rings (207) are covered with buffer rubber layers (208). The inner walls of the outer buffer rings (207) are connected to telescopic rods (209), and one end of the telescopic rods (209) is telescopically connected to a telescopic post (210). The inner walls of the telescopic post (210) are embedded with springs (211), and the ends of the telescopic post (210) are fixed with buffer sleeves (212).
2. The anti-collision device for unmanned aerial vehicles according to claim 1, characterized in that, The motor base (202) and the stand (203) are fixedly connected to one end of the rotor bracket (201), and the stand (203) is made of soft rubber.
3. The anti-collision device for unmanned aerial vehicles according to claim 1, characterized in that, The top surface of the motor mount (202) is fixedly connected to the rotor mount (204), and the rotor blade (205) forms a rotating structure with the rotor support (201) through the motor mount (202).
4. The anti-collision device for unmanned aerial vehicles according to claim 1, characterized in that, The outer buffer ring (207) is connected to the four periphery of the rotor seat (204) through the telescopic rods (209) around the inner wall, and the telescopic rods (209) are equidistantly arranged around the rotor seat (204).
5. The anti-collision device for unmanned aerial vehicles according to claim 1, characterized in that, The telescopic rod (209) forms an elastic telescopic structure with the telescopic pile (210) through the spring (211), and one end of the telescopic pile (210) is fixedly connected to the buffer sleeve (212).
6. The anti-collision device for unmanned aerial vehicles according to claim 1, characterized in that, The main body of the drone (1) includes a drone frame (101), and a base frame (102) is fixed at one end of the drone frame (101). Soft rubber blocks (103) are fixed on both sides of the bottom of the base frame (102), and a buffer sheet (104) is fixed at the bottom of the soft rubber block (103).
7. A drone flight collision avoidance device according to claim 6, characterized in that, The base frame (102) is fixed to one side of the bottom of the drone frame (101), and the buffer plate (104) forms an elastic structure with the base frame (102) through the soft rubber block (103).
Citation Information
Patent Citations
Unmanned aerial vehicle flight anti-collision device
CN222247757U