Indoor flight anti-collision device for unmanned aerial vehicle
By introducing a multi-level buffer structure into the indoor flight collision avoidance device for drones, the problems of insufficient cross-model applicability and protection capability of existing devices have been solved, thereby improving the safety and economy of drones.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN JIHANG ZHIFEI TECHNOLOGY CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-06-26
Smart Images

Figure CN224409643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of indoor flight of unmanned aerial vehicles (UAVs), and specifically to an anti-collision device for indoor flight of UAVs. Background Technology
[0002] Indoor drone flight refers to the flight mode in which drones perform tasks in enclosed or semi-enclosed spaces without GPS signals, such as warehouses, factories, tunnels, and shopping malls. Its core relies on technologies such as lidar, visual sensors, and inertial navigation systems to achieve autonomous positioning and environmental perception. It uses real-time positioning and map building algorithms to construct 3D environmental models to ensure stable flight in complex obstacle environments. The drone indoor flight collision avoidance device is a comprehensive protection system designed specifically for enclosed or semi-enclosed spaces without GPS. By integrating sensors, intelligent algorithms, and physical protection structures, it enables drones to autonomously avoid obstacles and fly safely in complex obstacle environments.
[0003] Existing indoor drone flight collision avoidance devices lack multi-level buffering and shock absorption capabilities and adaptive protection. This leads to the need for additional customization when using non-adjustable collision avoidance devices across different drone models, resulting in reduced equipment utilization in warehousing and logistics scenarios. Furthermore, the lack of buffering and shock absorption means that traditional rubber shields will crack under long-term impacts, increasing wear and tear. Thus, long-term use limits the scope of application of these indoor drone flight collision avoidance devices and reduces the safety of drone protection.
[0004] Therefore, it is necessary to invent an indoor anti-collision device for drones to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide an indoor anti-collision device for unmanned aerial vehicles (UAVs). Through an anti-collision base, threaded disc, telescopic plate, buffer sleeve, telescopic rod, abutment rod, first elastic anti-collision ring, and second elastic anti-collision ring, the device achieves multi-level buffering, shock absorption, and adaptive protection capabilities. This design enables graded absorption of collision energy, reducing the impact force on the UAV body. Furthermore, the threaded disc and telescopic plate structure allows for rapid adjustment of the protection range, adapting to UAVs with different wheelbases, thus improving the overall applicability of the device. Over long-term use, the safety, applicability, and economy of the device are all guaranteed. This addresses the problem that existing indoor anti-collision devices for UAVs lack multi-level buffering, shock absorption, and adaptive protection capabilities. This leads to the need for additional customization when using non-adjustable anti-collision devices across different UAV models, resulting in reduced equipment utilization in warehousing and logistics scenarios. Moreover, the lack of buffering and shock absorption means that traditional rubber covers will crack under long-term impacts, increasing wear and tear. These limitations restrict the application range of the existing indoor anti-collision devices and reduce the safety of UAVs.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an indoor flight anti-collision device for unmanned aerial vehicles (UAVs), including an anti-collision base and a main body for indoor flight anti-collision of UAVs;
[0007] A threaded disc, with threads penetrating the bottom of the anti-collision base for angle adjustment, has a rotating disc connected to its external threads. A telescopic plate is fixedly installed on the outside of the rotating disc, a fixed block is fixedly installed at the front end of the telescopic plate, a buffer sleeve is fixedly installed above the fixed block, a telescopic rod is fixedly installed inside the buffer sleeve, a first buffer telescopic spring is sleeved on the outside of the telescopic rod, an abutment rod is fixedly installed at the front end of the telescopic rod, a movable frame is hinged to the front end of the abutment rod, a fixing bolt is threaded through the external threads of the movable frame, and a first elastic anti-collision ring is threaded to the front end of the fixing bolt.
[0008] The front plate is threaded to the outside front of the anti-collision base to assist in anti-collision. A central retraction rod is fixedly installed on the outside upper part of the front plate. A second buffer telescopic spring is sleeved on the outside of the central retraction rod, and a second elastic anti-collision ring is fixedly installed at the front end of the central retraction rod.
[0009] Preferably, the rotating disk is threadedly connected to the anti-collision base, and the telescopic plate is symmetrically arranged about the central axis of the rotating disk.
[0010] Preferably, the abutment rod is slidably connected to the buffer sleeve, and the center of the telescopic rod coincides with the center line of the abutment rod.
[0011] Preferably, the anti-collision base has a magnetic groove inside, a magnetic block is embedded inside the magnetic groove, the top of the magnetic block is threaded to the drone body, and the outer sides of the anti-collision base are threaded with abutment screws.
[0012] Preferably, the drone body is magnetically connected to the anti-collision base, and the anti-collision screws are evenly distributed on the anti-collision base.
[0013] Preferably, the second elastic anti-collision ring is slidably connected to the front plate, and the second buffer telescopic spring is sleeved between the fixed plates at both ends of the outer side of the middle telescopic rod.
[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0015] This utility model includes an anti-collision base, a threaded disc, a telescopic plate, a buffer sleeve, a telescopic rod, an abutment rod, a first elastic anti-collision ring, and a second elastic anti-collision ring. When using this indoor flight anti-collision device for drones, the direction of the telescopic plate can be adjusted first using the threaded disc on the anti-collision base, according to the size of the drone. Then, the telescopic plate is extended to a length exceeding the drone's wing. The first elastic anti-collision ring is then installed on the outer bottom of the drone using fixing bolts. Next, the second elastic anti-collision ring is installed on the outer upper part of the drone's wing. When the drone flies indoors, the first and second elastic anti-collision rings first contact the outer wall, and then the compression rod and the telescopic rod further... The first and second buffer springs extend and retract to form a buffer, thereby improving the shock absorption and cushioning capabilities of the indoor flight collision avoidance device for drones. This design gives the device multi-level buffering and shock absorption and adaptive protection capabilities. This design achieves graded absorption of collision energy, reducing the problem of the drone body bearing large impact forces. Moreover, the threaded disc and telescopic plate structure supports quick adjustment of the protection range, adapting to drones with different wheelbases, improving the overall applicability of the indoor flight collision avoidance device. Thus, the safety, applicability, and economy of the indoor flight collision avoidance device for drones are all guaranteed in long-term use. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the telescopic plate structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the first buffer telescopic spring structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the magnetic block structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the second elastic anti-collision ring structure of this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Anti-collision base; 2. Threaded disc; 3. Rotating disc; 4. Telescopic plate; 5. Fixing block; 6. Buffer sleeve; 7. Telescopic rod; 8. First buffer telescopic spring; 9. Abutment rod; 10. Movable frame; 11. Fixing bolt; 12. First elastic anti-collision ring; 13. Magnetic groove; 14. Magnetic block; 15. Unmanned aircraft body; 16. Abutment screw; 17. Front plate; 18. Middle retraction rod; 19. Second buffer telescopic spring; 20. Second elastic anti-collision ring. Detailed Implementation
[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0025] This utility model provides, for example Figure 1-5 The device shown is an indoor flight collision avoidance device for drones, including a collision avoidance base 1, which is the main body for indoor flight collision avoidance of drones;
[0026] A threaded disc 2 has threads that pass through the bottom of the anti-collision base 1 for adjusting the angle. A rotating disc 3 is connected to the external thread of the threaded disc 2. A telescopic plate 4 is fixedly installed on the outside of the rotating disc 3. A fixed block 5 is fixedly installed at the front end of the telescopic plate 4. A buffer sleeve 6 is fixedly installed above the fixed block 5. A telescopic rod 7 is fixedly installed inside the buffer sleeve 6. A first buffer telescopic spring 8 is sleeved on the outside of the telescopic rod 7. An abutment rod 9 is fixedly installed at the front end of the telescopic rod 7. A movable frame 10 is hinged to the front end of the abutment rod 9. A fixing bolt 11 passes through the external thread of the movable frame 10. A first elastic anti-collision ring 12 is threaded to the front end of the fixing bolt 11.
[0027] The front plate 17 is threaded to the front of the anti-collision base 1 for auxiliary anti-collision. A central retraction rod 18 is fixedly installed on the upper part of the front plate 17. A second buffer telescopic spring 19 is sleeved on the outside of the central retraction rod 18. A second elastic anti-collision ring 20 is fixedly installed at the front end of the central retraction rod 18. When the drone flies indoors, the first elastic anti-collision ring 12 and the second elastic anti-collision ring 20 first touch the outer wall. Then, by compressing the abutment rod 9 and the central retraction rod 18, the first buffer telescopic spring 8 and the second buffer telescopic spring 19 are extended and retracted to form a buffer, thereby improving the shock absorption and buffering ability of the drone indoor flight anti-collision device for the drone.
[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the rotating disk 3 is threadedly connected to the anti-collision base 1. The telescopic plate 4 is symmetrically arranged around the central axis of the rotating disk 3. The rotating disk 3 is used to adjust the angle of the telescopic plate 4 on the anti-collision base 1, so that the anti-collision device for indoor flight of the drone can be adapted to different drones when installed. The abutment rod 9 is slidably connected to the buffer sleeve 6. The center of the telescopic rod 7 coincides with the center line of the abutment rod 9. After being impacted, the abutment rod 9 will slide towards the inside of the buffer sleeve 6, thereby compressing the first buffer telescopic spring 8 to form a buffer. The anti-collision base 1 has a magnetic groove 13 inside. The magnetic groove 13 is inlaid with a magnetic block 14. The drone body 15 is threadedly connected to the top of the magnetic block 14. The abutment screws 16 are threaded through the outer sides of the anti-collision base 1. The drone body 15 can be quickly installed with the anti-collision base 1 through the magnetic groove 13 and the magnetic block 14.
[0029] like Figure 1 , Figure 4 and Figure 5 As shown, the drone body 15 is magnetically connected to the anti-collision base 1. The anti-collision screws 16 are evenly distributed on the anti-collision base 1. The anti-collision screws 16 are used to enhance the stability of the drone body 15 and the anti-collision base 1 from both sides after the drone body 15 and the anti-collision base 1 are installed. The second elastic anti-collision ring 20 is slidably connected to the front plate 17. The second buffer telescopic spring 19 is sleeved between the fixing plates at both ends of the outer side of the middle telescopic rod 18. The overall structure of the second elastic anti-collision ring 20 is simple, which is not only convenient to install, but also convenient for maintenance personnel to replace in time if a fault occurs.
[0030] The working principle of this utility model is as follows: First, take out the drone body 15. Using the magnetic block 14 installed at the bottom of the drone body 15, align the magnetic block 14 with the internal magnetic groove 13 of the anti-collision base 1 to magnetically connect the drone body 15 with the anti-collision base 1. Then, twist the abutment screw 16 to abut the drone body 15 from both sides, thereby strengthening the stability of the connection between the drone body 15 and the anti-collision base 1. Next, adjust the direction of the telescopic plate 4 on the anti-collision base 1 using the threaded disc 2, and then adjust the external knob to extend the telescopic plate 4 so that its length exceeds that of the drone wing. Then, install the first elastic anti-collision ring 12 on the outer bottom of the drone using the fixing bolt 11. Then, in the same way, install the retraction rod 18 and the second elastic anti-collision ring 20 on the outside of the front plate 17. In this way, when the drone flies indoors, the first elastic anti-collision ring 12 and the second elastic anti-collision ring 20 first touch the outer wall, and then move towards the inside of the buffer sleeve 6 through the abutment rod 9. The sliding mechanism compresses the first buffer spring 8, creating a buffer, while the central extension rod 18 directly extends and retracts, compressing the second buffer spring 19. This combination of extension and retraction of the first and second buffer springs enhances the shock absorption and cushioning capabilities of the indoor flight collision avoidance device for drones. This design provides the device with multi-level buffering, shock absorption, and adaptive protection capabilities. It achieves graded absorption of collision energy, reducing the impact force on the drone body. Furthermore, the threaded disc 2 and telescopic plate 4 structure allows for rapid adjustment of the protection range, adapting to drones with different wheelbases and improving the overall applicability of the indoor flight collision avoidance device. After completing the installation and use of the entire indoor flight collision avoidance device according to the above operations, routine maintenance is required. This completes the usage process of the indoor flight collision avoidance device for drones.
[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A collision avoidance device for indoor flight of unmanned aerial vehicles (UAVs), characterized in that: include Anti-collision base (1), the main body used for anti-collision of UAVs during indoor flight; A threaded disc (2) is threaded through the bottom of the anti-collision base (1) for adjusting the angle. The threaded disc (2) is connected to a rotating disc (3) by an external thread. A telescopic plate (4) is fixedly installed on the outside of the rotating disc (3). A fixed block (5) is fixedly installed at the front end of the telescopic plate (4). A buffer sleeve (6) is fixedly installed above the fixed block (5). A telescopic rod (7) is fixedly installed inside the buffer sleeve (6). A first buffer telescopic spring (8) is sleeved on the outside of the telescopic rod (7). An abutment rod (9) is fixedly installed at the front end of the telescopic rod (7). A movable frame (10) is hinged at the front end of the abutment rod (9). A fixing bolt (11) is threaded through the outside of the movable frame (10). A first elastic anti-collision ring (12) is threaded at the front end of the fixing bolt (11). The front plate (17) is threaded to the front of the anti-collision base (1) for auxiliary anti-collision. A middle retraction rod (18) is fixedly installed on the upper part of the front plate (17). A second buffer telescopic spring (19) is sleeved on the outside of the middle retraction rod (18). A second elastic anti-collision ring (20) is fixedly installed at the front end of the middle retraction rod (18).
2. The anti-collision device for indoor flight of unmanned aerial vehicles according to claim 1, characterized in that: The rotating disk (3) is threadedly connected to the anti-collision base (1), and the telescopic plate (4) is symmetrically arranged with respect to the central axis of the rotating disk (3).
3. The anti-collision device for indoor flight of unmanned aerial vehicles according to claim 1, characterized in that: The abutment rod (9) is slidably connected to the buffer sleeve (6), and the center of the telescopic rod (7) coincides with the center line of the abutment rod (9).
4. The anti-collision device for indoor flight of unmanned aerial vehicles according to claim 1, characterized in that: The anti-collision base (1) has a magnetic groove (13) inside, and a magnetic block (14) is embedded inside the magnetic groove (13). The upper part of the magnetic block (14) is threadedly connected to the unmanned aircraft body (15), and the outer sides of the anti-collision base (1) are threadedly connected to the abutment screw (16).
5. The anti-collision device for indoor flight of unmanned aerial vehicles according to claim 4, characterized in that: The unmanned aerial vehicle body (15) is magnetically connected to the anti-collision base (1), and the anti-collision screws (16) are evenly distributed on the anti-collision base (1).
6. The anti-collision device for indoor flight of unmanned aerial vehicles according to claim 1, characterized in that: The second elastic anti-collision ring (20) is slidably connected to the front plate (17), and the second buffer telescopic spring (19) is sleeved between the fixing plates at both ends of the outer side of the middle telescopic rod (18).