Unmanned aerial vehicle flight anti-collision device

Abstract

The utility model discloses an unmanned aerial vehicle flight anti-collision device, which belongs to the technical field of unmanned aerial vehicle anti-collision and comprises an unmanned aerial vehicle body structure and a protective structure mounted on the periphery of the outer side of the unmanned aerial vehicle body structure. The unmanned aerial vehicle body structure comprises a rack, a supporting frame is fixed to the periphery of the rack, a motor is installed at the bottom of the supporting frame, and an output shaft of the motor penetrates through the supporting frame and is fixedly provided with a paddle wing. The connecting plate and the protective cover are movably connected through the first rotating shaft and the movable disc, so that the protective cover is driven by the movable disc to deflect up and down along a certain angle, then the connecting plate is movably connected with the rack through the fixing base, horizontal swing of the connecting plate is achieved, and the two sets of swing directions are perpendicular to each other; and when the protective cover and the connecting plate make contact with a foreign object, a certain cushioning space exists between the connecting plate and the protective cover, the protective cover and the connecting plate are prevented from making rigid contact with the outside, and the interior of the unmanned aerial vehicle body structure is protected.

Description

Technical Field

[0001] This utility model relates to the field of drone collision avoidance technology, specifically 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] In the prior art, Chinese utility model patent CN222347315U discloses a drone flight collision avoidance device, including a drone body, a baffle fixedly connected to the top of a first electric push rod, second electric push rods fixedly connected to both sides of the drone body, a connecting plate fixedly connected to the other end of each second electric push rod, three dampers fixedly connected to the other side of each connecting plate, and shock-absorbing springs fitted on the outer ring of each damper. The protective mechanism includes a fixed box, which is fixedly connected to the dampers. An airbag is fixedly connected to the other side of the fixed box, and a locking plate is fixedly connected to the other side of each airbag, with the locking plate cooperating with the fixed box. In this utility model, the electronic valve at the bottom of the air tank is opened, and then the compressed air inside the air tank quickly enters the airbag through the connecting pipe, causing the airbag to inflate out of the fixed box, thereby reducing damage during a collision.

[0004] Firstly, the above technical solution uses the combination of dampers and shock-absorbing springs to buffer the fixed box. However, the fixed box is set in an arc shape, and all three sets of dampers radiate outward from the center of the drone body. This causes the fixed box to be unable to extend or retract under the restriction of the three sets of dampers. Moreover, it cannot provide continuous anti-collision protection after the airbag inflates. Subsequently, the fixed box makes rigid contact with the colliding object, directly transmitting the impact force generated by the collision to the inside of the drone body through vibration, causing certain interference to the internal structure of the drone body. Utility Model Content

[0005] The purpose of this invention is to provide a drone flight anti-collision device. A connecting plate is installed on the outside of the frame, and a protective cover is movably connected to one end of the connecting plate via a movable disc. In the event of a collision, the protective cover can self-adjust by swinging up and down within the range of motion of the deflection limiting component. Simultaneously, the connecting plate is movably connected to the frame via a fixed base. When the connecting plate tilts due to a collision, a torsion spring adjusts its position. This not only absorbs the impact force but also allows it to return to its initial state after a collision, providing multiple expansion protections and protection against different collision angles, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drone flight collision avoidance device, comprising:

[0007] The main structure of the drone and the protective structure installed around the outside of the main structure of the drone;

[0008] The UAV body structure includes a frame, with support frames fixed around the frame, a motor installed at the bottom of the support frames, and the output shaft of the motor passing through the support frames and fixed with propellers.

[0009] The protective structure includes two sets of connecting plates. One end of the connecting plates facing each other is rotatably connected to a first rotating shaft via a bearing. A movable disk is fixed to one side of the first rotating shaft facing each other. A protective cover is fixed to the outside of the movable disk. The protective cover is located on the outside of the rotor blade. A deflection limiting component is provided between the connecting plates and the movable disk. The end of the connecting plate away from the protective cover is movably connected to the frame via a fixed seat.

[0010] Preferably, the deflection limiting component includes an arc-shaped limiting groove formed on the opposite side of the connecting plate, a movable block fixed to the outer side of the movable disk, the side of the movable block away from the movable disk extending into the arc-shaped limiting groove, and adjusting springs fixed at both ends of the inner cavity of the arc-shaped limiting groove, with the opposite ends of the adjusting springs abutting against the outer side of the movable block.

[0011] Preferably, a second rotating shaft is fixed to the end of the connecting plate away from the protective cover. The two ends of the second rotating shaft are rotatably connected to the inner cavity of the fixed seat through bearings. Torsion springs are fixed to both ends of the second rotating shaft, and the end of the torsion spring away from the second rotating shaft is fixed to the inner wall of the fixed seat.

[0012] Preferably, a through hole is provided at the center of the movable block, and a limiting slide rod is slidably arranged in the through hole. The two ends of the limiting slide rod pass through adjusting springs and are fixed on the inner wall of the arc-shaped limiting groove.

[0013] Preferably, two adjacent sets of the fixing seats are fixed on the mounting plate, and the mounting plate is provided with mounting screws on the outside, which penetrate the mounting plate and are threadedly connected to the frame.

[0014] Preferably, the protective cover is made of a single piece of elastic material, and a support rod of the same material is fixed to the inner side of the protective cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention uses a first rotating shaft and a movable disc to connect the connecting plate and the protective cover. This allows the protective cover to rotate up and down at a certain angle under the drive of the movable disc. Then, the connecting plate is connected to the frame via a fixed seat, enabling the connecting plate to swing horizontally. The two sets of swing directions are perpendicular, increasing the range of motion of the protective cover. When the protective cover and the connecting plate come into contact with external objects, there is a certain amount of shock absorption space between the connecting plate and the protective cover, preventing the protective cover and the connecting plate from rigidly contacting the outside, thus protecting the internal structure of the UAV.

[0017] This invention prevents the drone from crashing after the rotor blades come into contact with foreign objects by placing a protective cover on the outside of the rotor blades. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the UAV body structure of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the protective structure of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram showing the disassembled connecting plate and protective cover of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram showing the disassembled connection plate and fixing base of this utility model.

[0023] The diagram shows the following components: 1. UAV body structure; 11. Frame; 12. Support frame; 13. Motor; 14. Propeller; 2. Protective structure; 21. Connecting plate; 22. First rotating shaft; 23. Movable disc; 24. Protective cover; 25. Fixed base; 3. Deflection limiting component; 31. Arc-shaped limiting groove; 32. Movable block; 33. Adjusting spring; 4. Second rotating shaft; 5. Torsion spring; 6. Limiting slide bar; 7. Mounting plate; 8. Mounting screw; 9. Support rod. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figures 1-5 The drone flight collision avoidance device shown includes:

[0026] The unmanned aerial vehicle (UAV) body structure 1 and the protective structure 2 installed around the outside of the UAV body structure 1;

[0027] The UAV body structure 1 includes a frame 11, a support frame 12 is fixed around the frame 11, a motor 13 is installed at the bottom of the support frame 12, and the output shaft of the motor 13 passes through the support frame 12 and is fixed with a rotor 14.

[0028] The protective structure 2 includes two sets of connecting plates 21. The opposite ends of the connecting plates 21 are rotatably connected to a first rotating shaft 22 via bearings. A movable disk 23 is fixed on the opposite side of the first rotating shaft 22. A protective cover 24 is fixed on the outside of the movable disk 23. The protective cover 24 is located on the outside of the rotor blade 14. A deflection limiting component 3 is provided between the connecting plates 21 and the movable disk 23. The end of the connecting plate 21 away from the protective cover 24 is movably connected to the frame 11 via a fixed seat 25.

[0029] The connecting plate 21 and the protective cover 24 are movably connected by the first rotating shaft 22 and the movable disk 23, which allows the protective cover 24 to deflect up and down at a certain angle under the drive of the movable disk 23. Then, the connecting plate 21 is movably connected to the frame 11 through the fixed seat 25, so that the connecting plate 21 swings horizontally and the two sets of swing directions are perpendicular, which increases the range of motion of the protective cover 24. When the protective cover 24 and the connecting plate 21 come into contact with foreign objects, there is a certain shock-absorbing space between the connecting plate 21 and the protective cover 24, which avoids the protective cover 24 and the connecting plate 21 from rigidly contacting the outside, thus protecting the inside of the UAV body structure 1.

[0030] Among them, such as Figure 5 As shown:

[0031] The deflection limiting component 3 includes an arc-shaped limiting groove 31 opened on the opposite side of the connecting plate 21. A movable block 32 is fixed on the outer side of the movable plate 23. The side of the movable block 32 away from the movable plate 23 extends into the arc-shaped limiting groove 31. Adjusting springs 33 are fixed at both ends of the inner cavity of the arc-shaped limiting groove 31. The opposite ends of the adjusting springs 33 are attached to the outer side of the movable block 32. The arc-shaped limiting groove 31 and the movable block 32 are used to limit the deflection angle of the movable plate 23, so as to prevent the protective cover 24 from swinging too much and failing to play a protective role. Two sets of adjusting springs 33 are set on both sides of the movable block 32 to support the movable block 32 and maintain the stability of the movable block 32 in the arc-shaped limiting groove 31.

[0032] Furthermore, such as Figure 5 As shown:

[0033] A second rotating shaft 4 is fixed to the end of the connecting plate 21 away from the protective cover 24. The two ends of the second rotating shaft 4 are rotatably connected to the inner cavity of the fixed base 25 through bearings. Torsion springs 5 ​​are fixed to both ends of the second rotating shaft 4. The end of the torsion spring 5 away from the second rotating shaft 4 is fixed to the inner wall of the fixed base 25. The second rotating shaft 4 facilitates the movable connection between the connecting plate 21 and the fixed base 25, realizing the movable connection between the connecting plate 21 and the frame 11. With the torsion spring 5, the second rotating shaft 4 and the connecting plate 21 are limited. At the same time, the deflection of the connecting plate 21 is absorbed and released by the torsion spring 5. Meanwhile, the torsion springs 5 ​​at both ends of the same second rotating shaft 4 rotate in opposite directions to maintain the stability of the second rotating shaft 4.

[0034] Preferred, such as Figure 5 As shown:

[0035] A through hole is provided at the center of the movable block 32, and a limiting slide rod 6 is slidably installed in the through hole. The two ends of the limiting slide rod 6 pass through the adjusting spring 33 and are fixed on the inner wall of the arc-shaped limiting groove 31. The setting of the limiting slide rod 6 facilitates the movable block 32 to slide on the limiting slide rod 6, so as to prevent the movable block 32 from excessively contacting and wearing the arc-shaped limiting groove 31.

[0036] It is worth noting that, such as Figure 3 As shown:

[0037] Two adjacent sets of mounting bases 25 are fixed on the mounting plate 7. The mounting plate 7 is provided with mounting screws 8 on the outside. The mounting screws 8 pass through the mounting plate 7 and are threaded to the frame 11. They are fixed on the mounting plate 7 by the mounting bases 25. At the same time, the mounting plate 7 is installed on the frame 11 by the mounting screws 8, which facilitates the disassembly and assembly of the UAV body structure 1 and the protective structure 2.

[0038] In a further preferred embodiment, as shown in 4:

[0039] The protective cover 24 is made of a single piece of elastic material. A support rod 9 of the same material is fixed inside the protective cover 24. By limiting the material of the protective cover 24, and utilizing the characteristics of the protective cover 24 itself, it can absorb the impact force through deformation when a collision occurs, and at the same time, it can elastically restore its original shape.

[0040] In practical use, the mounting plate 7 is fixed to the frame 11 with mounting screws 8. The drone flies with the cooperation of the motor 13 and the rotor 14. When the drone collides with a foreign object during flight, the protective cover 24 can protect the rotor 14. First, the protective cover 24 absorbs the impact force through its own deformation. Then, according to the direction of impact, the protective cover 24 rotates around the first rotating axis 22 via the movable disk 23. The movable disk 23 drives the movable block 32 to swing within the arc-shaped limiting groove 31. With the cooperation of the adjusting spring 33, the movable block 32 is supported. When the collision occurs... When the movable block 32 is pressed, the adjusting spring 33 absorbs the impact force and then releases, allowing the movable block 32 to return to its initial position, thus providing a buffer and protection. At the same time, after the connecting rod is hit, it will swing along the second rotating axis 4, causing the connecting plate 21 to sway within the fixed seat 25. Then, the second rotating axis 4 drives the torsion springs 5 ​​at both ends to rotate. One set of torsion springs 5 ​​contracts, and the other set of torsion springs 5 ​​expands, achieving automatic balance adjustment to maintain the swaying of the connecting plate 21 and the protective plate within a certain range, avoiding vibration damage to the internal structure 1 of the UAV body caused by the impact force.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An unmanned aerial vehicle flight anti-collision device, characterized in that, The utility model relates to a kind of unmanned aerial vehicle body structure and protective structure, which comprises: The unmanned aerial vehicle body structure includes a frame, a support frame is fixed around the frame, a motor is installed at the bottom of the support frame, and a paddle is fixed to the output shaft of the motor. The protective structure includes two groups of connecting plates, a first rotating shaft is rotatably connected to the end of the connecting plate facing each other through a bearing, an activity disc is fixed to the side of the first rotating shaft facing each other, a protective cover is fixed to the outside of the activity disc, the protective cover is located outside the paddle, a deflection limiting assembly is provided between the connecting plate and the activity disc, and the end of the connecting plate away from the protective cover is movably connected to the frame through a fixed seat. The deflection limiting assembly includes an arc-shaped limiting slot opened in the side of the connecting plate facing each other, an activity block is fixed to the outside of the activity disc, the side of the activity block away from the activity disc penetrates into the arc-shaped limiting slot, adjusting springs are fixed to both ends of the inner cavity of the arc-shaped limiting slot, and the ends of the adjusting springs facing each other are attached to the outside of the activity block.

2. The unmanned aerial vehicle flight anti-collision device according to claim 1, wherein: The end of the connecting plate away from the protective cover is fixed with a second rotating shaft, the two ends of the second rotating shaft are rotatably connected to the inner cavity of the fixed seat through a bearing, torsional springs are fixed to the two ends of the second rotating shaft, and the ends of the torsional springs away from the second rotating shaft are fixed on the inner wall of the fixed seat.

3. The unmanned aerial vehicle flight anti-collision device according to claim 1, wherein: A through hole is opened in the center of the activity block, and a limiting slide rod is slidably arranged in the through hole, the two ends of the limiting slide rod penetrate through the adjusting springs and are fixed on the inner wall of the arc-shaped limiting slot.

4. The unmanned aerial vehicle flight anti-collision device according to claim 2, characterized in that: The adjacent two groups of fixed seats are fixed on a mounting plate, the outside of the mounting plate is provided with mounting screws, the mounting screws penetrate through the mounting plate and are threadedly connected with the frame.

5. The unmanned aerial vehicle flight anti-collision device according to claim 1, wherein: The protective cover is made of a whole piece of elastic material, and a support rod made of the same material is fixed to the inside of the protective cover.

6. The unmanned aerial vehicle flight anti-collision device according to claim 1, wherein: ​

Images