Unmanned aerial vehicle remote sensing measurement and control rotor wing protection device

Abstract

The utility model discloses an unmanned aerial vehicle remote sensing measurement and control rotor wing protection device, which belongs to the field of unmanned aerial vehicles and comprises an unmanned aerial vehicle, a plurality of rotor wings are arranged on the side surface of the unmanned aerial vehicle, and a detachable protection device is arranged on one side of each rotor wing. Compared with the prior art, the unmanned aerial vehicle has the advantages that the force borne by collision is weakened through the inflatable ring on the outer wall of the I-shaped protection ring, and the rotary bearing is mounted in the I-shaped protection ring, so that when the unmanned aerial vehicle is collided, the inflatable ring can rotate along with the I-shaped protection ring, and the possibility of breakage of the I-shaped protection ring is reduced; the I-shaped protection ring and the rotating bearing are fixed above the rotor wing through the fixing screws, and the detachable structure greatly facilitates maintenance or replacement of the I-shaped protection ring.

Description

Technical Field

[0001] The utility model relates to the field of unmanned aerial vehicles, in particular to a protection device for a remote sensing and measurement and control rotor of an unmanned aerial vehicle. Background Art

[0002] An unmanned aerial vehicle is an unmanned aircraft controlled by a radio remote control device and a self - contained program control device. It has the advantages of high flexibility, fast take - off efficiency, and high positioning accuracy. Therefore, it is widely used in various aspects of society, such as military monitoring, express delivery, and emergency rescue.

[0003] The existing unmanned aerial vehicle controls the rotation angle and speed of the unmanned rotor through a remote control, and controls the running direction of the unmanned aerial vehicle by changing the angles of each rotor.

[0004] During the flight of the unmanned aerial vehicle, it is inevitable to encounter some complex terrains. When flying in such terrains, if the operator operates improperly, the rotor may collide with obstacles, damaging the rotor and causing the unmanned aerial vehicle to fall. Therefore, in order to protect the rotor, a protective layer is usually set around the rotor. These protective layers are usually integrated with the unmanned aerial vehicle and are hard shells. It is difficult to relieve the force during a collision. Once these shells are broken, their fragments are likely to directly damage the rotor. Moreover, if a part of the protective layer of the rotor is broken, it will affect the air flow direction around the rotor, thus affecting the stability of the unmanned aerial vehicle. Because the protective layer is integrated with the unmanned aerial vehicle, it is extremely difficult to replace the damaged part in a small area.

[0005] The technical problem to be solved by the utility model is that the protective layer of the existing protection device for the remote sensing and measurement and control rotor of the unmanned aerial vehicle is a hard layer, making it difficult to relieve the force during a collision, and it is integrated with the unmanned aerial vehicle body, so that it is extremely difficult to repair or replace when the protective layer is damaged. Content of the Utility Model

[0006] To solve the above - mentioned technical problems, the technical solution provided by the utility model is: a protection device for a remote sensing and measurement and control rotor of an unmanned aerial vehicle, including an unmanned aerial vehicle. A plurality of rotors are arranged on the side of the unmanned aerial vehicle. A detachable protection device is arranged on one side of each rotor. The detachable protection device includes an I - shaped protection ring above the rotor and an inflatable ring on the outer wall of the I - shaped protection ring. A rotary bearing is arranged inside the I - shaped protection ring.

[0007] As an improvement, the rotary bearing is connected to the inner wall of the I - shaped protection ring through a three - head bracket, and the rotary bearing passes through the central connection end of the three - head bracket.

[0008] As an improvement, the I - shaped protection ring is connected to the top surface of the rotor through fixing screws, and the fixing screws pass through the inner hole of the rotary bearing.

[0009] As an improvement, the fixing screw and the inner hole of the rotating bearing, as well as the three - headed bracket and the outer wall of the rotating bearing, are both in contact connection through the body.

[0010] As an improvement, the inflation port of the inflatable ring passes through the side wall of the I - shaped protective ring.

[0011] As an improvement, the three - headed bracket and the inner wall of the I - shaped protective ring are connected by welding.

[0012] The advantages of the present utility model compared with the prior art are as follows: The inflatable ring on the outer wall of the I - shaped protective ring of this device weakens the impact force, and a rotating bearing is installed inside the I - shaped protective ring. When the drone is impacted, the inflatable ring will rotate accordingly, thereby reducing the possibility of the I - shaped protective ring breaking; The I - shaped protective ring and the rotating bearing are fixed above the rotor by fixing screws, and this detachable structure greatly facilitates the maintenance or replacement of the I - shaped protective ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structure diagram of a drone remote sensing and measurement and control rotor protection device of the present utility model.

[0014] Figure 2 is the exploded view of the detachable protection device of a drone remote sensing and measurement and control rotor protection device of the present utility model.

[0015] Figure 3 is the cross - sectional view of the detachable protection device of a drone remote sensing and measurement and control rotor protection device of the present utility model.

[0016] Figure 4 is the structure diagram of the I - shaped protective ring of a drone remote sensing and measurement and control rotor protection device of the present utility model.

[0017] As shown in the figure: 1. Drone; 2. Rotor; 3. Detachable protection device; 31. I - shaped protective ring; 32. Inflatable ring; 33. Rotating bearing; 34. Three - headed bracket; 35. Fixing screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further elaborates on the present utility model in conjunction with the attached drawings.

[0019] As shown in the specification appendix Figure 1 、 2, as shown in Figures 3 and 4, it includes a drone 1, several rotors 2 are arranged on the side of the drone 1, and a detachable protection device 3 is arranged on one side of the rotor 2. The detachable protection device 3 includes an I-shaped protection ring 31 above the rotor 2 and an inflatable ring 32 on the outer wall of the I-shaped protection ring 31. The inflation port of the inflatable ring 32 passes through the side wall of the I-shaped protection ring 31. The structure of the inflatable ring 32 is a T-shaped structure. The thin column end of the inflatable ring 32 is clamped into the card slot of the I-shaped protection ring 31. When clamping, the inflation port of the inflatable ring 32 passes through the inflation port through hole on the bottom surface of the outer ring of the I-shaped protection ring 31. Use an air pump to fill the inflatable ring 32 with gas so that it closely adheres to the outer wall of the I-shaped protection ring 31.

[0020] A rotary bearing 33 is arranged inside the I-shaped protection ring 31. The rotary bearing 33 is connected to the inner wall of the I-shaped protection ring 31 through a three-headed bracket 34. The three-headed bracket 34 is connected to the inner wall of the I-shaped protection ring 31 by welding. The rotary bearing 33 passes through the central connection end of the three-headed bracket 34. The I-shaped protection ring 31 is connected to the top surface of the rotor 2 through a fixing screw 35. The fixing screw 35 passes through the inner hole of the rotary bearing 33. The fixing screw 35 is in contact connection with the inner hole of the rotary bearing 33 and the outer wall of the three-headed bracket 34 and the rotary bearing 33 through the body. Weld the three-headed bracket 34 to the inner wall on one side of the I-shaped protection ring 31 with an electric welding machine. With the three-headed bracket 34 as the bottom surface, put the I-shaped protection ring 31 around the rotor 2 to play the role of a protective layer; clamp the rotary bearing 33 into the central through hole of the three-headed bracket 34. For the top end of the rotor 2 and the central through hole of the rotary bearing 33, screw in the fixing screw 35 for fixation (usually a washer is placed above the rotary bearing 33 during operation, and the diameter of the washer is larger than the diameter of the rotary bearing 33).

[0021] When the present utility model is specifically implemented, use the remote control to lift the drone 1 into the air. When the inflatable ring 32 around the rotor 2 collides with an obstacle, the inflatable ring 32 will first unload the force, and then through the contact angle between the two, the inflatable ring 32 will rotate around the rotary bearing 33, thereby further weakening the collision force to protect the rotor 2; when an external force damages the I-shaped protection ring 31, use a wrench to loosen the fixing screw 35, and then the I-shaped protection ring 31 can be removed and replaced.

[0022] The above describes the present utility model and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the creative purpose of the present utility model, they design similar structural manners and embodiments to this technical solution without creative efforts, and all should belong to the protection scope of the present utility model.

Claims

1. A rotor protection device for UAV remote sensing measurement and control, comprising a UAV (1), and a plurality of rotors (2) are arranged on the side of the UAV (1), characterized in that: One side of the rotor (2) is provided with a detachable protection device (3). The detachable protection device (3) includes an I-shaped protection ring (31) located above the rotor (2) and an inflatable ring (32) located on the outer wall of the I-shaped protection ring (31). A rotary bearing (33) is arranged inside the I-shaped protection ring (31).

2. The drone remote sensing measurement and control rotor protection device according to claim 1, characterized in that: The rotary bearing (33) is connected to the inner wall of the I-shaped protection ring (31) through a three-headed bracket (34). The rotary bearing (33) passes through the central connection end of the three-headed bracket (34).

3. A drone remote sensing measurement and control rotor protection device according to claim 1, characterized in that: The I-shaped protection ring (31) is connected to the top surface of the rotor (2) through fixing screws (35). The fixing screws (35) pass through the inner hole of the rotary bearing (33).

4. The drone remote sensing measurement and control rotor protection device according to claim 3, characterized in that: The fixing screws (35) are in contact connection with the inner hole of the rotary bearing (33) and the outer wall of the rotary bearing (33) and the three-headed bracket (34) are in contact connection through the body.

5. A drone remote sensing measurement and control rotor protection device according to claim 1, characterized in that: The air inlet of the inflatable ring (32) passes through the side wall of the I-shaped protection ring (31).

6. The drone remote sensing measurement and control rotor protection device according to claim 2, characterized in that: The three-headed bracket (34) is connected to the inner wall of the I-shaped protection ring (31) by welding.

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