An unmanned aerial vehicle anti-collision structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI BAILI XINKE LOW ALTITUDE TECHNOLOGY CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-26
AI Technical Summary
The disassembly process of existing drone anti-collision shields is cumbersome, leading to inconvenience in maintenance.
The protective mechanism, consisting of anti-collision plates, auxiliary strips, and protective covers, achieves quick disassembly and replacement through the threaded connection of screws and nuts, the snap-fit of support blocks and auxiliary strips, and the fixation of limit pins, combined with the buffering effect of buffer pads.
It effectively reduces drone collision damage, extends equipment lifespan, and lowers maintenance difficulty and costs.
Smart Images

Figure CN224409642U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV anti-collision structure. Background Technology
[0002] Currently, drones are used in fields such as aerial photography, agriculture, plant protection, and disaster relief. During flight, drones may collide with obstacles, and the high-speed rotating rotors are easily damaged by collisions. Therefore, existing drones generally have protective bars on the outside of the rotors to prevent damage to the rotors due to collisions.
[0003] When using the above technology, the following technical problems were found in the existing technology: In order to provide more comprehensive protection for drones, it is necessary to use anti-collision shields to protect drones. However, most existing anti-collision shields are installed on drones in a fixed connection manner. When the anti-collision shield is damaged and needs to be replaced or the drone needs to be repaired, the disassembly process of the anti-collision shield is cumbersome and inconvenient to operate, which brings great inconvenience to users. To this end, we designed a drone anti-collision structure to provide another technical solution to the above technical problems. Utility Model Content
[0004] The purpose of this invention is to provide a collision avoidance structure for unmanned aerial vehicles (UAVs) to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A collision avoidance structure for unmanned aerial vehicles (UAVs) includes a main body, four support arms mounted on the outer side of the main body, and rotors mounted on the ends of the four support arms that are far apart from each other. A collision avoidance mechanism for protecting the main body and rotors is provided on the outer side of the four support arms. The collision avoidance mechanism includes a collision avoidance plate, auxiliary strips, and a protective cover. Collision avoidance plates are mounted on both ends of the support arms. Auxiliary strips are fixed on both sides of the collision avoidance plates. A protective cover is fixed to the bottom end of the collision avoidance plates.
[0007] The protective cover has connecting seats fixed on both sides of its bottom end.
[0008] The bottom ends of the four support arms are fixed with screws, the outer side of the screws is slidably connected to the inside of the connecting seat, and the bottom end of the screws is threaded with a nut.
[0009] An anti-loosening washer is fitted between the bottom end of the connecting seat and the nut.
[0010] The top end of the support arm is fixed with a support block, and the top end of the support block is engaged with the auxiliary strip.
[0011] The support block has a slidable limit pin on its outer side. One end of the limit pin passes through the support block and is slidably connected to the auxiliary strip. A spring is sleeved on the outer side of the limit pin. One end of the spring is fixed to the limit pin, and the other end of the spring is fixed to the support block.
[0012] Several buffer pads are fixed on both sides of the outer side of the anti-collision plate.
[0013] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the anti-collision plate, auxiliary strip and protective cover of this utility model protect the main body, support arm and rotor of the drone from multiple angles. Combined with the buffering effect of the buffer pad, it can effectively reduce the damage to the drone caused by collision, rollover and other situations, and improve the service life of the equipment.
[0015] Through the threaded connection of the screw and nut, the snap-fit of the support block and the auxiliary strip, and the fixing of the limit pin, combined with the anti-loosening function of the anti-loosening washer, the protective components are firmly connected to the main body of the drone, which is not easy to loosen or fall off during flight, ensuring the continuous and stable protective effect.
[0016] The anti-collision mechanism can be effectively disassembled and replaced through the cooperation of screws, nuts, limit pins, support blocks and springs. When the protective components are worn or damaged, they can be quickly disassembled and replaced, reducing maintenance difficulty and cost. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the structure between the anti-collision plate and the auxiliary strip of this utility model;
[0020] Figure 3 This is a schematic diagram of the screw and nut structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the limiting pin and auxiliary strip structure of this utility model.
[0022] In the diagram: 1. Main body; 2. Support arm; 3. Anti-collision plate; 4. Auxiliary strip; 5. Protective cover; 6. Nut; 7. Screw; 8. Support block; 9. Limit pin; 10. Spring; 11. Rotor; 12. Connecting seat; 13. Buffer pad; 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Please see Figure 1-4 This utility model provides a technical solution: a drone anti-collision structure, including a main body 1, with four support arms 2 mounted on the outer side of the main body 1. Each of the four support arms 2 has a rotor 11 mounted on one end that is far apart from each other. The outer side of the four support arms 2 is provided with an anti-collision mechanism for protecting the main body 1 and the rotor 11. The anti-collision mechanism includes an anti-collision plate 3, auxiliary strips 4 and protective cover 5. The two ends of the support arms 2 are equipped with anti-collision plates 3. Auxiliary strips 4 are fixed on both sides of the anti-collision plates 3. The bottom end of the anti-collision plates 3 is fixed with a protective cover 5. Several buffer pads 13 are fixed on both sides of the outer side of the anti-collision plates 3.
[0025] When in use, the drone is started to drive the rotor 11 to rotate. At this time, the rotor 11 drives the main body 1 and the support arm 2 to take off. At this time, the anti-collision plate 3, the auxiliary strip 4 and the protective cover 5 are installed on the outside of the drone and effectively protect the main body 1, the support arm 2 and the rotor 11 to prevent the drone from being damaged or overturned.
[0026] Both sides of the bottom end of the protective cover 5 are fixed with connecting seats 12, and the bottom ends of the four support arms 2 are fixed with screws 7. The outer side of the screws 7 is slidably connected to the inside of the connecting seats 12, and the bottom end of the screws 7 is threaded with nuts 6.
[0027] Specifically, the anti-collision plate 3, auxiliary strip 4 and protective cover 5 are slidably connected to the screw rod 7 by the connecting seat 12, and then the nut 6 is threadedly connected to the bottom end of the screw rod 7. The nut 6 effectively resists the connecting seat 12, which makes it easy to effectively assemble the anti-collision plate 3, auxiliary strip 4 and protective cover 5 on the outside of the support arm 2, and effectively protect the drone.
[0028] An anti-loosening washer is fitted between the bottom end of the connecting seat 12 and the nut 6. The anti-loosening washer prevents the nut 6 from loosening and slipping due to vibration and impact, and effectively increases the stability between the nut 6 and the screw 7.
[0029] A support block 8 is fixed to the top of the support arm 2. The top of the support block 8 is engaged with the auxiliary strip 4. A limit pin 9 is slidably connected to the outside of the support block 8. One end of the limit pin 9 passes through the support block 8 and is slidably connected to the auxiliary strip 4. A spring 10 is sleeved on the outside of the limit pin 9. One end of the spring 10 is fixed to the limit pin 9, and the other end of the spring 10 is fixed to the support block 8. The auxiliary strip 4 is engaged with the support block 8 by the anti-collision plate 3. Then, the elasticity of the spring 10 drives the limit pin 9 to pass through the support block 8 and be inserted into the auxiliary strip 4, further increasing the stability of the anti-collision plate 3, the auxiliary strip 4, and the protective cover 5.
[0030] The above-mentioned mechanism facilitates the disassembly and replacement of the anti-collision plate 3, auxiliary strip 4, and protective cover 5 through the cooperation between the nut 6, screw 7, support block 8, and limit pin 9.
[0031] The usage process of the anti-collision structure for drones provided by this utility model is as follows:
[0032] After the drone is started, the rotor 11 rotates and drives the main body 1 and the support arm 2 to take off. At this time, the anti-collision plate 3, auxiliary strip 4 and protective cover 5 installed on the outside of the drone form an all-round protection system, which effectively shields and isolates the main body 1, support arm 2 and rotor 11, reducing the risk of collision.
[0033] In terms of structural connection, the connecting seat 12 at the bottom of the protective cover 5 is slidably connected to the screw 7 at the bottom of the support arm 2. The connecting seat 12 is resisted by the threaded connection between the nut 6 and the screw 7, thereby firmly assembling the anti-collision plate 3, the auxiliary strip 4 and the protective cover 5 on the outside of the support arm 2. At the same time, the support block 8 at the top of the support arm 2 is engaged with the auxiliary strip 4. The limiting pin 9 passes through the support block 8 and connects with the auxiliary strip 4 under the elastic force of the spring 10, further enhancing the structural stability.
[0034] When a drone collides, the buffer pad 13 on the outside of the anti-collision plate 3 can absorb part of the impact force. Combined with the structural strength of the anti-collision plate 3 and the auxiliary strip 4, it reduces the probability of damage to the main body 1, the support arm 2 and the rotor 11, and reduces the occurrence of rollover and other situations.
[0035] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
Claims
1. A collision avoidance structure for unmanned aerial vehicles (UAVs), characterized in that, The system includes a main body (1), and four support arms (2) are mounted on the outer side of the main body (1). Each of the four support arms (2) is equipped with a rotor (11) at one end away from each other. The outer side of the four support arms (2) is provided with an anti-collision mechanism for protecting the main body (1) and the rotor (11). The anti-collision mechanism includes an anti-collision plate (3), auxiliary strips (4) and a protective cover (5). Both ends of the support arms (2) are equipped with anti-collision plates (3). Auxiliary strips (4) are fixed on both sides of the anti-collision plates (3). A protective cover (5) is fixed at the bottom end of the anti-collision plates (3).
2. The anti-collision structure for unmanned aerial vehicles according to claim 1, characterized in that, Both sides of the bottom of the protective cover (5) are fixed with connecting seats (12).
3. The anti-collision structure for unmanned aerial vehicles according to claim 2, characterized in that, The bottom ends of the four support arms (2) are fixed with screws (7), the outer side of the screws (7) is slidably connected to the inside of the connecting seat (12), and the bottom end of the screws (7) is threaded with nuts (6).
4. The anti-collision structure for unmanned aerial vehicles according to claim 3, characterized in that, An anti-loosening washer is fitted between the bottom end of the connecting seat (12) and the nut (6).
5. The anti-collision structure for unmanned aerial vehicles according to claim 3, characterized in that, The top end of the support arm (2) is fixed with a support block (8), and the top end of the support block (8) is engaged with the auxiliary strip (4).
6. The anti-collision structure for unmanned aerial vehicles according to claim 5, characterized in that, The support block (8) is slidably connected to a limiting pin (9). One end of the limiting pin (9) passes through the support block (8) and is slidably connected to the auxiliary strip (4). A spring (10) is sleeved on the outside of the limiting pin (9). One end of the spring (10) is fixed to the limiting pin (9), and the other end of the spring (10) is fixed to the support block (8).
7. The anti-collision structure for unmanned aerial vehicles according to claim 6, characterized in that, Several buffer pads (13) are fixed on both sides of the outer side of the anti-collision plate (3).