An unmanned aerial vehicle flight anti-collision device
By designing a detachable anti-collision sleeve and rotor connection method, the problem of cumbersome disassembly of existing drone anti-collision equipment is solved, achieving simplified maintenance and stable anti-collision effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山东电子职业技术学院
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-24
AI Technical Summary
Existing drone collision avoidance devices are fixedly installed on the rotor, which requires cumbersome disassembly during maintenance, increasing the difficulty of maintenance and making operation inconvenient.
A collision avoidance device for unmanned aerial vehicles (UAVs) was designed, comprising a collision avoidance adjustment mechanism and a positioning mechanism. Through the cooperation of a pull rod and a spring, the collision avoidance sleeve can be detachably connected, simplifying the rotor maintenance process and maintaining stable protection during flight.
It simplifies the rotor maintenance process, prevents the anti-collision sleeve from colliding with the rotor during flight, reduces maintenance difficulty, and ensures flight safety.
Smart Images

Figure CN224546339U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of drone collision avoidance technology, specifically, it relates to a drone flight collision avoidance device. Background Technology
[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and their own program control devices, or operated autonomously by an onboard computer, either completely or intermittently.
[0003] Most existing anti-collision devices for drones are fixedly installed on the drone's rotor to protect it from collisions. This means that when the rotor needs to be inspected or maintained, the anti-collision device needs to be disassembled and repaired in a rather cumbersome manner, which greatly increases the difficulty of maintenance for repair personnel and makes it inconvenient to operate and use.
[0004] In view of this, this utility model is proposed. Utility Model Content
[0005] To address the problem that most existing drone collision avoidance devices are fixedly mounted on the drone's rotor for protection, which requires cumbersome disassembly and repair during rotor maintenance, significantly increasing the difficulty for maintenance personnel and hindering operation, the basic concept of this utility model is as follows: A drone flight collision avoidance device includes a drone and a rotor mounted on the drone, wherein the drone is equipped with a collision avoidance adjustment mechanism and a positioning mechanism. The anti-collision adjustment mechanism includes an anti-collision sleeve installed on the drone, and a movable connecting rod is connected to the outer wall of the anti-collision sleeve. The movable connecting rod is used to drive the anti-collision sleeve to move. The positioning mechanism includes a positioning rod and a positioning hole. The positioning rod and the positioning hole are used together to position the anti-collision sleeve.
[0006] In a preferred embodiment of the present invention, the anti-collision adjustment mechanism includes a support rod connected to the outer wall of the drone. The top surface of the support rod has a movable groove. A first spring is connected to the inner wall of the movable groove. A connecting slider is connected to the end of the first spring away from the inner wall of the movable groove. A fixing plate is connected to the outer wall of the connecting slider.
[0007] In a preferred embodiment of this utility model, the positioning mechanism includes a pull rod connected to the bottom end of a movable connecting rod, a connecting rod connected to the outer wall of the pull rod, a fixed sleeve connected to the end of the connecting rod away from the pull rod, the outer wall of the positioning rod connected to the inner wall of the fixed sleeve, and positioning holes opened at the bottom ends of the connecting slider and the support rod.
[0008] In a preferred embodiment of this utility model, a sliding groove is provided on the outer wall of the fixed plate, and a sliding rod is connected to the inner wall of the sliding groove. The movable connecting rod is slidably disposed on the outer wall of the sliding rod, and a second spring is connected to the bottom end of the movable connecting rod. The end of the second spring away from the movable connecting rod is connected to the bottom end of the inner wall of the sliding groove.
[0009] In a preferred embodiment of this utility model, there are two movable connecting rods, which are distributed on the outer wall of the anti-collision sleeve in a left-right symmetrical structure.
[0010] In a preferred embodiment of this utility model, the outer wall of the positioning rod is snapped onto the inner wall of the positioning hole, and the outer wall of the positioning rod is properly fitted to the inner wall of the positioning hole.
[0011] In a preferred embodiment of this utility model, the outer wall of the connecting slider is fitted to the inner wall of the movable groove, and the outer wall of the movable connecting rod is fitted to the inner wall of the groove opened on the fixed plate.
[0012] Compared with the prior art, the present invention has the following advantages: This invention uses a pull rod to move a movable link downwards, thereby moving the anti-collision sleeve downwards and removing it from the protection range of the rotor. Then, the rebound force of the first spring moves the movable link to the right, thereby moving the anti-collision sleeve away from the position below the rotor. This allows for maintenance without disassembling the anti-collision sleeve, simplifying maintenance operations and making it easier to use.
[0013] This invention allows the positioning rod to move downward by pulling down the lever, thus detaching it from the inner wall of the positioning hole and releasing the positioning of the connecting slider. The positioning rod and the positioning hole can then position the connecting slider, thereby preventing the anti-collision sleeve from shifting and coming into contact with the rotor during the flight of the drone, which could affect flight or even cause the drone to crash.
[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0015] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of this utility model; Figure 3 This is a schematic diagram of the anti-collision adjustment mechanism of this utility model; Figure 4 This is a schematic diagram of the positioning mechanism of this utility model; Figure 5 This is a schematic diagram of the partial separation structure of the positioning mechanism of this utility model.
[0016] In the diagram: 1. Unmanned Aerial Vehicle (UAV); 2. Rotor; 31. Collision-resistant adjustment mechanism; 311. Support rod; 312. Movable groove; 313. First spring; 314. Connecting slider; 315. Fixing plate; 316. Slide rod; 317. Second spring; 318. Movable connecting rod; 319. Collision-resistant sleeve; 32. Positioning mechanism; 321. Fixing sleeve; 322. Positioning rod; 323. Connecting rod; 324. Pull rod; 325. Positioning hole. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0018] like Figures 1 to 5 As shown, a drone flight collision avoidance device includes a drone 1 and a rotor 2 mounted on the drone 1. The drone 1 is equipped with a collision avoidance adjustment mechanism 31 and a positioning mechanism 32. The collision avoidance adjustment mechanism 31 includes a collision avoidance sleeve 319 mounted on the drone 1. A movable connecting rod 318 is connected to the outer wall of the collision avoidance sleeve 319. The movable connecting rod 318 is used to drive the collision avoidance sleeve 319 to move. The positioning mechanism 32 includes a positioning rod 322 and a positioning hole 325. The positioning rod 322 and the positioning hole 325 are used in conjunction to position the collision avoidance sleeve 319.
[0019] Furthermore, the anti-collision adjustment mechanism 31 includes a support rod 311 connected to the outer wall of the drone 1. The top surface of the support rod 311 has a movable groove 312. A first spring 313 is connected to the inner wall of the movable groove 312. A connecting slider 314 is connected to the end of the first spring 313 away from the inner wall of the movable groove 312. A fixing plate 315 is connected to the outer wall of the connecting slider 314.
[0020] Furthermore, a groove is provided on the outer wall of the fixed plate 315, and a slide rod 316 is connected to the inner wall of the groove. The movable connecting rod 318 is slidably disposed on the outer wall of the slide rod 316. A second spring 317 is connected to the bottom end of the movable connecting rod 318, and the end of the second spring 317 away from the movable connecting rod 318 is connected to the bottom end of the inner wall of the groove.
[0021] Furthermore, there are two movable connecting rods 318, which are symmetrically distributed on the outer wall of the anti-collision sleeve 319. The outer wall of the connecting slider 314 is fitted with the inner wall of the movable groove 312, and the outer wall of the movable connecting rod 318 is fitted with the inner wall of the groove opened on the fixed plate 315. This can improve the stability of the support movement of the anti-collision sleeve 319, thereby improving the stability of the anti-collision sleeve 319 when protecting the rotor 2 from collisions.
[0022] The positioning mechanism 32 includes a pull rod 324 connected to the bottom of the movable connecting rod 318, a connecting rod 323 connected to the outer wall of the pull rod 324, a fixed sleeve 321 connected to the end of the connecting rod 323 away from the pull rod 324, a positioning rod 322 connected to the inner wall of the fixed sleeve 321, and positioning holes 325 are opened at the bottom ends of the connecting slider 314 and the support rod 311.
[0023] Furthermore, the outer wall of the positioning rod 322 is snapped into the inner wall of the positioning hole 325, and the outer wall of the positioning rod 322 fits snugly against the inner wall of the positioning hole 325, thereby improving the stability of the positioning rod 322 when inserted into the inner wall of the positioning hole 325.
[0024] The implementation principle of the anti-collision device for unmanned aerial vehicles (UAVs) in this embodiment is as follows: When it is necessary to protect the rotor 2 from collisions, firstly, the pull rod 324 is pulled downwards, causing the movable connecting rod 318 to move downwards on the outer wall of the slide rod 316. At the same time, during the movement, the second spring 317 is compressed, so that the movable connecting rod 318 and the anti-collision sleeve 319 are always located below the rotor 2. Then, the movable connecting rod 318 is moved towards the rotor 2. As the movable connecting rod 318 moves, the fixed plate 315 can be moved. During the movement of the fixed plate 315, the connecting slider 314 can be moved on the inner wall of the movable groove 312 inside the support rod 311. At the same time, during the movement of the connecting slider 314, the first spring 313 will be stretched. At this time, the movable connecting rod 318 can be moved downwards. The movement process moves the anti-collision sleeve 319 at one end to a position below the rotor 2. At this point, the lever 324 is gradually released, and the rebound of the second spring 317 pushes the movable link 318 upward. As the movable link 318 moves, it moves the anti-collision sleeve 319 upward, thus fitting it onto the outer wall of the rotor 2. The anti-collision sleeve 319 protects the rotor 2 from collisions with external objects during the flight of the UAV 1, preventing it from crashing. When the rotor 2 needs maintenance, the above steps are reversed. First, the anti-collision sleeve 319 is moved down to the bottom of the rotor 2. Then, the lever 324 is pulled to move the movable link 318 to the right, thus moving the anti-collision sleeve 319 away from the rotor 2. This makes it easier for maintenance personnel to maintain the rotor 2 and simplifies the maintenance process.
[0025] While pulling down the lever 324, the connecting rod 323 and the fixing sleeve 321 will move downwards simultaneously. As the fixing sleeve 321 moves downwards, the positioning rod 322 will move downwards. At this time, the outer wall of the positioning rod 322 can disengage from the inner wall of the positioning hole 325 at the bottom of the connecting slider 314, thereby releasing the positioning of the connecting slider 314. Then, the rebound of the first spring 313 will move the connecting slider 314 to the right, thereby moving the anti-collision sleeve 319 away from the position below the rotor 2. When the anti-collision sleeve 319 moves to protect the rotor 2, the positioning rod 322 and the connecting slider 314 will move synchronously to the position of the positioning hole 325. At this time, releasing the lever 324 will allow it to move upwards through the rebound of the second spring 317 and insert into the inner wall of the positioning hole 325 to complete the positioning. This will prevent the anti-collision sleeve 319 from shaking during the flight of the UAV 1, causing its inner wall to collide with the rotor 2, thus affecting the flight or even causing a crash.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A drone flight collision avoidance device, comprising a drone (1) and a rotor (2) mounted on the drone (1), characterized in that, The drone (1) is equipped with an anti-collision adjustment mechanism (31) and a positioning mechanism (32). The anti-collision adjustment mechanism (31) includes an anti-collision sleeve (319) installed on the drone (1). A movable link (318) is connected to the outer wall of the anti-collision sleeve (319). The movable link (318) is used to drive the anti-collision sleeve (319) to move. The positioning mechanism (32) includes a positioning rod (322) and a positioning hole (325). The positioning rod (322) and the positioning hole (325) can be used together to position the anti-collision sleeve (319).
2. The anti-collision device for unmanned aerial vehicles according to claim 1, characterized in that, The anti-collision adjustment mechanism (31) includes a support rod (311) connected to the outer wall of the drone (1). The top surface of the support rod (311) is provided with a movable groove (312). A first spring (313) is connected to the inner wall of the movable groove (312). A connecting slider (314) is connected to the end of the first spring (313) away from the inner wall of the movable groove (312). A fixing plate (315) is connected to the outer wall of the connecting slider (314).
3. The anti-collision device for unmanned aerial vehicles according to claim 1, characterized in that, The positioning mechanism (32) includes a pull rod (324) connected to the bottom end of the movable connecting rod (318), a connecting rod (323) connected to the outer wall of the pull rod (324), a fixed sleeve (321) connected to the end of the connecting rod (323) away from the pull rod (324), the outer wall of the positioning rod (322) connected to the inner wall of the fixed sleeve (321), and positioning holes (325) opened at the bottom ends of the connecting slider (314) and the support rod (311).
4. The anti-collision device for unmanned aerial vehicles according to claim 2, characterized in that, The outer wall of the fixed plate (315) is provided with a sliding groove, and a sliding rod (316) is connected to the inner wall of the sliding groove. The movable connecting rod (318) is slidably disposed on the outer wall of the sliding rod (316). A second spring (317) is connected to the bottom end of the movable connecting rod (318), and the end of the second spring (317) away from the movable connecting rod (318) is connected to the bottom end of the inner wall of the sliding groove.
5. A drone flight collision avoidance device according to claim 2, characterized in that, There are two movable links (318), which are distributed on the outer wall of the anti-collision sleeve (319) in a left-right symmetrical structure.
6. The anti-collision device for unmanned aerial vehicles according to claim 3, characterized in that, The outer wall of the positioning rod (322) is snapped into the inner wall of the positioning hole (325), and the outer wall of the positioning rod (322) is in close contact with the inner wall of the positioning hole (325).
7. The anti-collision device for unmanned aerial vehicles according to claim 2, characterized in that, The outer wall of the connecting slider (314) is fitted to the inner wall of the movable groove (312), and the outer wall of the movable connecting rod (318) is fitted to the inner wall of the groove opened on the fixed plate (315).