A rack for a drone and a drone

Abstract

The utility model relates to a kind of rack for unmanned aerial vehicle and unmanned aerial vehicle, wherein rack includes: annular protection unit, connecting frame;Multiple installation parts set on rack;Rack is also integrally provided with at least one rope anti-winding structure, and rope anti-winding structure includes: guide slope;And the receiving groove connected with the end of guide slope;The utility model provides a kind of rack for unmanned aerial vehicle and unmanned aerial vehicle, aims to be through a kind of structure simple, reliability high and highly integrated design, while solving the weak collision protection capability of existing capture net unmanned aerial vehicle and the technical pain point that traction rope is easy to wind propeller.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a frame accessory that integrates collision protection and rope anti-entanglement functions, as well as a UAV equipped with the frame. Background Technology

[0002] Net-catching drones, as a type of active countermeasure drone equipment, intercept target aircraft by launching a capture net connected by a tow rope, and are widely used in low-altitude security and key area protection. However, existing net-catching drones generally face two major technical challenges when performing missions: First, net-catching missions typically require drones to approach targets at close range, often indoors or in complex environments, resulting in extremely high collision risks. Traditional drones have exposed structures, and core components such as propellers and motors are highly susceptible to damage in collisions. To address this, current technology usually employs external, independent protective shields. However, these shields are often non-load-bearing add-ons, separate from the drone's arms or main fuselage structure. They have limited strength and are easily damaged under strong impacts, failing to enhance the overall rigidity of the fuselage and instead increasing structural redundancy and weight.

[0003] Secondly, after the net is launched, the traction rope connecting the net to the aircraft will suspend below the fuselage. The powerful downwash generated by the drone's propellers or the flight movement of the aircraft can easily suck this flexible rope into the high-speed rotating blades, causing a catastrophic "suicidal" failure and leading to the aircraft's loss of control and crash. To solve this problem, existing solutions mostly use active tensioning and retrieval devices, such as motor-driven winding mechanisms to manage the rope. However, these active solutions greatly increase the system's complexity, weight, cost, and potential for failure, and their reliability is difficult to guarantee in the fast-paced combat environment. Utility Model Content

[0004] The purpose of this utility model is to provide a frame and drone for unmanned aerial vehicles (UAVs), aiming to solve the technical problems of weak collision protection and easy entanglement of propellers by existing net-catching UAVs through a simple, reliable and highly integrated design.

[0005] To achieve the above objectives, the core technical solution adopted by this utility model is as follows: including: At least two ring-shaped protective units, each of which is arranged around the drone propeller; A connecting frame that integrates at least two ring-shaped protective units into one unit; Multiple mounting parts are set on the frame, each of which is used to connect to the end of the drone cantilever; The frame is also integrated with at least one rope anti-tangling structure, which includes: Guide ramp; and A storage groove that connects to the end of the guide ramp.

[0006] Preferably, the number of annular protective units is four, arranged symmetrically.

[0007] Preferably, each annular protective unit includes: an annular outer ring, a central hub located inside the outer ring, and multiple radial spokes connecting the outer ring and the central hub.

[0008] Preferably, the mounting part is located on the center hub.

[0009] Preferably, the outer ring of the guardrail has a predetermined vertical height along its axial direction.

[0010] Preferably, the connecting frame includes a bridging structure disposed between two adjacent annular protective units.

[0011] Preferably, the rope anti-tangling structure is provided on the connecting frame.

[0012] Preferably, the cross-section of the receiving groove is V-shaped or U-shaped.

[0013] Preferably, the annular protective unit and the connecting frame are integrally molded structures.

[0014] An unmanned aerial vehicle (UAV) comprising: The fuselage is equipped with multiple cantilever arms; The transmitter is mounted on the fuselage. The integrated protective and anti-tangling frame is connected to the ends of multiple cantilever arms via its mounting section, and the rope anti-tangling structure is located in front of and below the launcher in the direction of launch.

[0015] Compared with the prior art, the beneficial effects of this utility model are significant and multifaceted: 1. High Reliability: This invention achieves anti-entanglement through structural synergy. The ring-shaped protective unit forms a macroscopic physical barrier, fundamentally preventing the rope from approaching the propeller over a large area; based on this, the ingeniously designed rope anti-entanglement structure can precisely guide and constrain the rope along a specific path. The entire process requires no moving parts or power source, achieving extremely high structural reliability and safety.

[0016] 2. Integrated structural design, enhanced rigidity: This solution deeply integrates protective functions with load-bearing structure. The entire frame is a whole cage-like load-bearing structure, which can effectively disperse and withstand impact forces. Its structural rigidity and strength far exceed the traditional "arm + independent protective cover" mode, which helps to reduce flight vibration and improve flight stability and control precision.

[0017] 3. Highly integrated, lightweight and low cost: This solution has a simple design, integrating the two core safety functions of collision protection and rope anti-tangling into a single accessory. It eliminates the need for additional complex retrieval devices, significantly reducing the number of parts, system weight and manufacturing costs. Attached Figure Description

[0018] To enable those skilled in the art to more clearly and comprehensively understand the technical solution of this utility model, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that the accompanying drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the accompanying drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of the frame for an unmanned aerial vehicle (UAV) in one embodiment of the present invention.

[0020] Figure 2 This is a top view of the frame structure of a drone in one embodiment of the present invention. Figure 3 This is a three-dimensional structural diagram of a drone provided in an embodiment of the present invention.

[0021] In the above figures, the same reference numerals denote parts that have the same or similar functions. The names of the parts represented by each reference numeral are as follows: 1: Unmanned Aerial Vehicle (UAV); 2: Airframe; 3: Cantilever; 4: Launcher; 5: Propeller; 10: Annular protective unit; 11: Outer ring; 12: Central hub; 13: Radial spokes; 14: Guardrail; 20: Connecting frame; 21: Bridging structure; 30: Installation Department; 40: Rope anti-tangling structure; 41: Guide slope; 42: Storage groove. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings: To make the objectives, technical solutions, and advantages of this utility model clearer, several preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described herein are merely for explaining this utility model and do not constitute any limitation on its scope of protection. Any modifications, equivalent substitutions, or improvements made based on the spirit and principles of this utility model should be included within the scope of protection of this utility model.

[0023] Example 1: Please refer to Figures 1 to 3This utility model provides a frame for a drone. The frame is a separate, detachable accessory for mounting to the ends of multiple cantilever arms 3 of a drone 1. The frame itself is a single, integral structure that provides comprehensive passive safety for the drone 1 by integrating protective and anti-entanglement functions.

[0024] like Figure 1 and Figure 2 As shown, the core structure of this integrated protective and anti-winding frame includes at least two annular protective units 10, a connecting frame 20, and multiple mounting parts 30. In a preferred embodiment, as... Figure 3 As shown, there are four annular protective units 10 to accommodate common quadcopter drones. These four annular protective units 10 are arranged symmetrically, forming a compact layout resembling a "four-leaf clover" or a "grid," resulting in a stable structure. Specifically, each annular protective unit 10 surrounds the propeller 5 of a drone, providing circumferential protection. Figure 2 and Figure 3 As shown, each annular protective unit 10 has an optimized structure for high strength and lightweight design. It includes an outer ring 11, a central hub 12 located inside the outer ring 11, and multiple radial spokes 13 connecting the outer ring 11 and the central hub 12. This design forms a robust planar truss structure that effectively resists radial impacts. The frame is connected to the cantilever 3 end of the UAV 1 via multiple mounting sections 30 mounted thereon.

[0025] In a preferred embodiment, such as Figure 2 As shown, the mounting part 30 is directly mounted on the central hub 12 of each annular protective unit 10. The mounting part 30 may have pre-drilled positioning holes and threaded holes, and is fixed to the motor mount or special connector at the end of the UAV cantilever 3 by fasteners such as high-strength screws, ensuring a firm and reliable installation.

[0026] To provide more comprehensive three-dimensional protection, such as Figure 2 As shown, the outer ring 11 of each annular protective unit 10 has a preset vertical height along its axial direction, forming a short cylindrical guardrail 14. This guardrail can not only resist impacts from the side, but also effectively prevent the propeller 5 from colliding with obstacles when the drone moves up or down.

[0027] The connecting frame 20 serves to connect all the independent annular protective units 10 into a rigid whole. In a preferred embodiment, such as... Figure 2 and Figure 3As shown, the connecting frame 20 includes a bridging structure 21o disposed between two adjacent annular protective units 10. This bridging structure 21 smoothly connects the two adjacent outer rings 11, filling the sharp angle naturally formed between the two rings. This design effectively prevents the traction rope from being caught or worn by this angle during descent, ensuring smooth rope sliding. Another major innovation of this invention is that a rope anti-tangling structure 40∘ is also integrated into the aforementioned integrated protective structure. like Figure 1 , Figure 2 As shown, the rope anti-tangle structure 40 is integrally mounted on the frame. In a preferred embodiment, it is mounted on the connecting frame 20. The rope anti-tangle structure 40 includes a guide ramp 41 and a receiving groove 42∘ connected to the end of the guide ramp 41. When the frame is mounted on the drone 1, the anti-tangling structure 40 is positioned directly below and in front of the launch direction of the launcher 4 mounted on the drone body 2. This position is based on the natural downward trajectory of the rope after launch, ensuring that the rope has a high probability of contacting the structure under the influence of gravity and airflow. Its working principle is as follows: when the launcher 4 launches the net, the suspended traction rope, upon contacting the frame, first falls onto the smooth guide ramp 41 and slides naturally downwards along the ramp. Subsequently, the rope slides into the receiving groove 42 at the end of the guide ramp 41. The cross-section of the receiving groove 42 can be designed in a V-shape or U-shape, with rounded edges, effectively capturing and confining the rope, preventing it from detaching and drifting towards the propeller 5 area even in strong downwash airflow. To further improve performance, the surfaces of the guide ramp 41 and the receiving groove 42 can be treated with low-friction processes, such as polishing or coating with polytetrafluoroethylene (Teflon), to make the rope slide even more smoothly.

[0028] To ensure structural integrity and strength, the entire integrated protective and anti-winding frame, including all the annular protective units 10 and connecting frames 20, is preferably a one-piece molded structure. During manufacturing, high-strength engineering plastics (such as nylon with glass fiber) can be used for injection molding or carbon fiber composite materials for compression molding, to achieve extreme lightweighting while ensuring sufficient structural strength and rigidity.

[0029] This utility model also provides a drone 1, such as Figure 1 As shown, it includes a body 2 with multiple cantilever arms 3, a launcher 4 mounted on the body 2, and a frame for the UAV according to any of the aforementioned embodiments. The frame is securely connected to the ends of the cantilever arms 3 of the UAV via its mounting portion 30, providing the UAV with a highly reliable passive safety system that integrates collision protection and rope anti-entanglement.

[0030] Finally, it should be emphasized that the embodiments described above are merely illustrative of the technical concept and preferred implementation of this utility model, and are not intended to exhaustively describe or limit the scope of protection of this utility model. Any person skilled in the art, after understanding the spirit and core technical solution of this utility model, may make various modifications, equivalent substitutions, or improvements based on the content disclosed in this utility model, without departing from its basic principles. These obvious modifications or substitutions should all be considered to be included within the scope of protection claimed by this utility model.

Claims

1. A frame for a drone, connected to the ends of multiple cantilever arms of the drone, characterized in that... include: At least two annular protective units (10), each of the annular protective units (10) being arranged around the UAV propeller; A connecting frame (20) that connects the at least two annular protective units (10) into one unit; Multiple mounting portions (30) are provided on the frame, each of the mounting portions (30) being used to connect to the end of the UAV cantilever; The frame is also integrally provided with at least one rope anti-tangling structure (40), the rope anti-tangling structure (40) includes: Guide slope (41); as well as A receiving groove (42) is connected to the end of the guide slope (41).

2. The UAV frame according to claim 1, characterized in that, The number of the ring-shaped protective units (10) is four, arranged symmetrically.

3. The UAV frame according to claim 1 or 2, characterized in that, Each of the annular protective units (10) includes: an annular outer ring (11), a central hub (12) located inside the outer ring (11), and a plurality of radial spokes (13) connecting the outer ring (11) and the central hub (12).

4. The UAV frame according to claim 3, characterized in that, The mounting part (30) is disposed on the central hub (12).

5. The UAV frame according to claim 3, characterized in that, The outer ring (11) has a guardrail (14) with a preset vertical height along its axial direction.

6. The frame for a drone according to claim 1, characterized in that, The connecting frame (20) includes a bridging structure (21) disposed between two adjacent annular protective units (10).

7. The frame for a drone according to claim 1, characterized in that, The rope anti-tangling structure (40) is disposed on the connecting frame (20).

8. The frame for a drone according to claim 1, characterized in that, The cross-section of the storage groove (42) is V-shaped or U-shaped.

9. The frame for a drone according to claim 1, characterized in that, The annular protective unit (10) and the connecting frame (20) are integrally formed structures.

10. A drone, characterized in that, include: The body, on which multiple cantilever arms are provided; The transmitter is mounted on the fuselage. And a frame for a drone as described in any one of claims 1 to 9, the frame being connected to the ends of the plurality of cantilever arms via its mounting portion (30), the rope anti-tangling structure being disposed in front of and below the launch direction of the transmitter.

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