A multifunctional unmanned aerial vehicle resistant to wind interference

Abstract

The utility model discloses a kind of wind interference-resistant multifunctional unmanned aerial vehicle, belong to unmanned aerial vehicle field, including multifunctional unmanned aerial vehicle and located on the duct of multifunctional unmanned aerial vehicle wing.This utility model compared with prior art's advantage is in that: the device will multifunctional unmanned aerial vehicle and duct be detachable structure, and duct is through integrated carbon fiber ring and support rod as main body, and stick on flexible skin on carbon fiber ring outer wall, wherein carbon fiber ring is connected with unmanned aerial vehicle by titanium alloy connecting rod, and carbon fiber ring, support rod and titanium alloy connecting rod mass are lighter, the overall weight influence of unmanned aerial vehicle is not big, can maximum amplitude guarantee the flight state of unmanned aerial vehicle, so that student can faster adapt unmanned aerial vehicle.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicles (UAVs), specifically a multi-functional UAV resistant to wind interference. Background Technology

[0002] With the continuous development of technology and intelligence, the cost of drones has decreased, and drones have gradually entered the realm of toys for ordinary people. In order to ensure the stable flight of drones, corresponding drone training is required before using them. Moreover, since abnormal weather conditions, such as wind or rain, are inevitable during outdoor training, a special multi-functional drone that is resistant to wind interference is usually needed to ensure normal training of drones in windy weather.

[0003] Existing wind-resistant multi-functional drones typically refer to those with ducted protective layers on their wings. These drones use ducts to isolate themselves from crosswinds, and the presence of the ducts makes the airflow more concentrated and regular. This is equivalent to converting more of the propeller's rotational kinetic energy into downward thrust, thus generating greater lift at the same power level than with an exposed propeller. However, the duct itself generates greater air resistance, which may limit the maximum speed.

[0004] Generally, the duct of a drone is integrated with the drone itself. This means that when training, two different drones need to be purchased for different weather conditions. Beginners need more time to become familiar with different types of drones, which reduces the effectiveness of training and increases training costs. Utility Model Content

[0005] The technical problem this invention aims to solve is that existing wind-resistant multi-functional UAV duct connection structures are all integrated structures, which increases costs and requires colleges to spend more time familiarizing themselves with different models.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a multi-functional unmanned aerial vehicle (UAV) resistant to wind interference, comprising a multi-functional UAV and a duct located on the wing of the multi-functional UAV. The duct is a detachable structure. The duct includes two carbon fiber rings connected by several support rods, a flexible skin adhered to the outer wall of the carbon fiber rings, and a titanium alloy connecting rod inserted into the shell of the multi-functional UAV. The two ends of the support rods are connected to the carbon fiber rings by a triangular connection structure, and the support rods are hollow rods made of carbon fiber.

[0007] As an improvement, the support rod and the carbon fiber ring are connected by a co-curing method.

[0008] As an improvement, the outer walls of the carbon fiber ring and support rod are coated with wear-resistant polyurethane varnish.

[0009] As an improvement, a polyurethane film is attached to the outer wall of the flexible skin.

[0010] As an improvement, the flexible skin is connected to the carbon fiber ring via polyurethane structural adhesive.

[0011] As an improvement, a triangular connecting ring is provided inside the carbon fiber ring on the top surface, the titanium alloy connecting rod is a hollow L-shaped rectangular structure, and a connecting sleeve is provided above the triangular connecting ring and fitted onto the titanium alloy connecting rod.

[0012] As an improvement, the vertical end of the connecting sleeve and the flat end of the titanium alloy connecting rod are both connected to the cavity of the multi-functional UAV shell via bolts.

[0013] The advantages of this invention compared to existing technologies are as follows: This device makes the multi-functional drone and the ductwork detachable, and the ductwork is based on an integrated carbon fiber ring and support rod, with a flexible skin attached to the outer wall of the carbon fiber ring. The carbon fiber ring is connected to the drone through a titanium alloy connecting rod. The carbon fiber ring, support rod, and titanium alloy connecting rod are lightweight and have little impact on the overall weight of the drone, which can maximize the protection of the drone's flight status and allow trainees to adapt to the drone more quickly. Attached Figure Description

[0014] Figure 1 This is a general structural diagram of a multi-functional unmanned aerial vehicle (UAV) designed to resist wind interference.

[0015] Figure 2 This is an exploded view of the duct of a multi-functional unmanned aerial vehicle (UAV) designed to resist wind interference, according to this utility model.

[0016] Figure 3 This is a duct structure diagram of a multi-functional unmanned aerial vehicle (UAV) designed to resist wind interference.

[0017] Figure 4 This is a top view of the duct of a multi-functional unmanned aerial vehicle (UAV) designed to resist wind interference, according to this utility model.

[0018] Figure 5 This utility model relates to a multi-functional unmanned aerial vehicle (UAV) resistant to wind interference. Figure 4 The sectional view corresponding to the section line at point AA.

[0019] Figure 6 This is a structural diagram of a multi-functional unmanned aerial vehicle (UAV) designed to resist wind interference, according to this utility model.

[0020] As shown in the figure: 1. Multifunctional UAV; 2. Ductwork; 21. Support rod; 22. Carbon fiber ring; 23. Flexible skin; 24. Titanium alloy connecting rod; 241. Connecting sleeve; 3. Triangular connecting ring. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] As per the instruction manual Figure 1 , 2 As shown, the existing wind-resistant multi-functional UAV structure includes a multi-functional UAV 1 and a duct 2 located on the wing of the multi-functional UAV 1. In order to ensure the stability of the connection, the multi-functional UAV 1 and the duct 2 are usually integrated into one structure.

[0023] As per the instruction manual Figure 2 , 3 As shown in Figures 4, 5, and 6, to facilitate the disassembly of the duct 2 and adapt to different weather conditions, the main structure of the duct 2 includes two carbon fiber rings 22 connected by several support rods 21, a flexible skin 23 adhered to the outer wall of the carbon fiber rings 22, and a titanium alloy connecting rod 24 inserted into the shell of the multi-functional UAV 1. The two ends of the support rods 21 are connected to the carbon fiber rings 22 using a triangular connection structure. A triangle is the only shape in geometry with natural stability, effectively decomposing forces from any direction, such as wind or vibration, into tensile or compressive stress along the direction of the rod. This structure greatly resists deformation, preventing relative displacement, twisting, or collapse of the two carbon fiber rings under stress. Furthermore, this application uses carbon fiber as the skeleton, which has extremely high specific stiffness and specific strength. This means that, under the same weight, the carbon fiber rod can provide a longer... To achieve the rigidity and strength of supermetals, and to ensure stability while minimizing weight, the support rod 21 is a hollow carbon fiber rod. The tubular structure is most efficient under bending and compression, providing a large moment of inertia with extremely light weight. The support rod 21 and the carbon fiber ring 22 are connected by a co-curing method. The principle is as follows: uncured carbon fiber prepreg is laid into the shape of the support rod and the carbon fiber ring, and at the joints where they need to be connected, the fibers are interwoven, wrapped, and overlapped. Finally, the entire component is placed in a mold and formed in a high-temperature and high-pressure oven or autoclave, where it is cured at the same time. This allows the resin to flow and cross-link at the molecular level, and the carbon fibers to fuse together at the joints, forming a truly seamless integrated structure. Moreover, mass production is mostly carried out in factories, which minimizes its cost.

[0024] To prevent wind and sand from affecting the carbon fiber and flexible skin 23, the outer walls of the carbon fiber ring 22 and support rod 21 are coated with wear-resistant polyurethane varnish, and the outer wall of the flexible skin 23 is covered with a polyurethane film. In order to save costs and facilitate disassembly of the flexible skin 23, the flexible skin 23 is connected to the carbon fiber ring 22 by polyurethane structural adhesive. If the connection strength is to be improved, several lightweight screws can be used for fixation.

[0025] To facilitate the connection between the duct 2 and the multi-functional drone 1, a triangular connecting ring 3 is provided inside the carbon fiber ring 22 on the top surface. The titanium alloy connecting rod 24 is a hollow L-shaped rectangular structure, and a connecting sleeve 241 is provided above the triangular connecting ring 3 and fitted onto the titanium alloy connecting rod 24. The connecting sleeve 241 is made of carbon fiber, but there is a titanium alloy as a supporting main board inside the carbon fiber. The triangular connecting ring 3 is also made of the same material, so as to ensure the supporting strength of the triangular connecting ring 3.

[0026] In order to ensure the connection stability at both ends of the titanium alloy connecting rod 24 while minimizing the overall weight, the connecting sleeve 241 is connected to the vertical end of the titanium alloy connecting rod 24 and the planar end of the titanium alloy connecting rod 24 is connected to the shell cavity of the multi-functional UAV 1 by bolts. The bolts are made of titanium alloy and there are multiple screws arranged in an array above the titanium alloy connecting rod 24.

[0027] In practical implementation of this utility model, when the weather is windless and the duct 2 is not needed, simply use a screwdriver to remove the titanium alloy connecting rod 24 and take it out of the connecting slot of the multi-functional drone 1 to complete the connection. Similarly, when connecting, simply insert and tighten the screw again. The titanium alloy connecting rod 24 and the connecting slot of the multi-functional drone 1 are tightly fitted together to ensure the stability of the connection.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A wind-resistant multi-functional unmanned aerial vehicle (UAV), comprising a multi-functional UAV (1) and a duct (2) located on the wing of the multi-functional UAV (1), characterized in that: The duct (2) is a detachable structure. The duct (2) includes two carbon fiber rings (22) connected by several support rods (21), a flexible skin (23) glued to the outer wall of the carbon fiber rings (22), and a titanium alloy connecting rod (24) inserted into the shell of the multi-functional UAV (1). The two ends of the support rod (21) are connected to the carbon fiber rings (22) by a triangular connection structure, and the support rod (21) is a hollow rod made of carbon fiber.

2. The wind-resistant multi-functional UAV according to claim 1, characterized in that: The support rod (21) and the carbon fiber ring (22) are connected by co-curing.

3. The wind-resistant multi-functional UAV according to claim 2, characterized in that: The outer walls of the carbon fiber ring (22) and the support rod (21) are coated with wear-resistant polyurethane varnish.

4. The wind-resistant multi-functional UAV according to claim 1, characterized in that: A polyurethane film is attached to the outer wall of the flexible skin (23).

5. A multi-functional unmanned aerial vehicle (UAV) with wind interference resistance according to claim 1, characterized in that: The flexible skin (23) is connected to the carbon fiber ring (22) by polyurethane structural adhesive.

6. A multi-functional unmanned aerial vehicle (UAV) with wind interference resistance according to claim 1, characterized in that: The carbon fiber ring (22) on the top surface is provided with a triangular connecting ring (3), the titanium alloy connecting rod (24) is a hollow L-shaped rectangular structure, and a connecting sleeve (241) is provided above the triangular connecting ring (3) and fitted on the titanium alloy connecting rod (24).

7. A multi-functional unmanned aerial vehicle (UAV) with wind interference resistance according to claim 6, characterized in that: The vertical end of the connecting sleeve (241) and the planar end of the titanium alloy connecting rod (24) are all connected to the shell cavity of the multi-functional UAV (1) by bolts.

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