A cage protection device for a drone

Abstract

The utility model discloses a kind of unmanned aerial vehicle cage type protection devices, the device main part is cage type structure, including the upper part's guard ring, the lower part's seat ring and the support radial bar of connecting both;The diameter of seat ring is less than guard ring, and seat ring is connected by connector by several seat rods head-to-tail and constitutes polygonal assembly structure, the lower end of support radial bar is connected using detachable mode with connector;When using, the lower end of unmanned aerial vehicle landing gear is fixed in seat ring, so that guard ring is always positioned above unmanned aerial vehicle paddle;The present application not only realizes all-around three-dimensional protection to paddle and fuselage, but also has the advantages of high structural strength, light weight and bottom modular maintenance convenience.

Description

Technical Field

[0001] This utility model relates to the field of drone auxiliary equipment technology, and in particular to a drone cage protection device. Background Technology

[0002] With the widespread application of drone technology in aerial photography, inspection of confined spaces, and disaster relief, flight safety has become a key focus of the industry. To prevent drones from injuring people or crashing during flight due to misoperation or environmental interference, installing protective devices has become a common safety measure.

[0003] Existing drone protection devices typically employ independent ring-shaped or semi-circular shields, mounted at the end of the motor arm, structurally surrounding only the outer periphery of the propeller. The main drawback of this existing technology is its limited protective function, merely preventing the high-speed rotating blades from cutting through obstacles or people in the horizontal direction. When drones operate in complex and confined spaces such as indoors, tunnels, or jungles, if they lose control, tumble, fall upside down, or encounter impacts from above or below, the lack of effective shielding and cushioning for the drone's main body, landing gear, and gimbal system makes it highly susceptible to direct impact damage to core components, resulting in significant equipment losses.

[0004] Therefore, there is an urgent need for a technical solution that can provide comprehensive three-dimensional protection for drones and propellers, while also being high-strength, lightweight, and easy to perform local maintenance. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a cage-type protection device for unmanned aerial vehicles (UAVs) to solve the problems mentioned in the background art.

[0006] To achieve the above technical objectives, the present invention provides a cage-type protection device for unmanned aerial vehicles (UAVs), comprising: a protective ring, a seat ring, and a plurality of support rods spaced circumferentially and connecting the protective ring and the seat ring; the seat ring is smaller than the protective ring; the lower end of the UAV's landing gear is fixedly connected to the seat ring, so that the protective ring is positioned above the UAV's propeller blades; the seat ring is formed by a plurality of seat rods joined end to end, and adjacent seat rods are fixedly connected by connectors; the lower end of the support rods is connected to the connectors.

[0007] Furthermore, it also includes a reinforcing section disposed between two adjacent support diameter bars; the reinforcing section includes an arc-shaped horizontal bushing, a Y-shaped support member, and a reinforcing diameter bar; the two ends of the arc-shaped horizontal bushing are respectively connected to the two adjacent support diameter bars; the lower end of the Y-shaped support member is connected to the arc-shaped horizontal bushing, and the upper end is respectively connected to the upper part of the two support diameter bars; the reinforcing diameter bar is disposed between the Y-shaped support member and the protective ring, with its lower end connected to the bottom of the Y-shaped support member and its upper end connected to the protective ring.

[0008] Furthermore, the arc-shaped horizontal liner, the Y-shaped support, and the reinforcing rib are all made of aluminum alloy, and the surfaces of the arc-shaped horizontal liner, the Y-shaped support, and the reinforcing rib all have a hollow structure.

[0009] Furthermore, the upper end of the support strip is fixedly connected to the protective ring; the lower end of the support strip is detachably connected to the connector by bolts or rivets.

[0010] Furthermore, the number of seat posts is an even number of four or more, and the seat ring has a centrally symmetrical polygonal structure.

[0011] Compared with the prior art, the beneficial effects of this utility model include: 1. This utility model ensures that the protective ring is always above the propeller blades by fixing the landing gear and the seat ring. Combined with the cage structure, it achieves all-round three-dimensional protection for the propeller blades, gimbal and fuselage, effectively avoiding equipment damage caused by uncontrolled rollover or overturning. At the same time, the seat ring adopts a modular assembly design composed of seat rod and connecting parts. When damaged, only some parts need to be disassembled and replaced instead of the whole machine being scrapped, which significantly reduces the user's maintenance costs.

[0012] 2. This utility model constructs a stable triangular mechanical support system through arc-shaped horizontal bushings, Y-shaped support components, and reinforcing diaphragms. This system can quickly disperse lateral impact forces to the overall frame, preventing blade compression due to large local deformation. Furthermore, the core components are all made of high-strength 7075 aluminum alloy and incorporate a hollowing-out process, achieving extreme lightweighting while ensuring excellent impact resistance, minimizing the impact on the drone's endurance and maneuverability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a cage-type protection device for unmanned aerial vehicles provided by this utility model; Figure 2 This is an application diagram of a cage-type protection device for unmanned aerial vehicles provided by this utility model. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] This utility model provides a cage-type protection device for unmanned aerial vehicles (UAVs), as shown in Figure 1. Its overall outline is a flat-bottomed hemispherical or inverted frustum shape. The device mainly includes a protective ring 1 at the top, a seat ring 2 at the bottom, and several support bars 3 connecting the two.

[0016] The diameter of the seat ring 2 (or the diameter of the circumscribed circle) is smaller than the diameter of the guard ring 1, which makes the lower part of the device have an inward shape. This reduces the landing contact area while ensuring the rotation space of the top blades, making it suitable for more complex take-off and landing terrain.

[0017] The seat ring 2 is a polygonal structure (such as a square, hexagon or octagon) formed by several independent seat rods connected end to end; a connector 7 is provided at the corner point between two adjacent seat rods, and the ends of the two seat rods are fixedly connected to the connector 7.

[0018] To accommodate mainstream multi-rotor drones on the market (which typically have a centrally symmetrical landing gear layout), the number of the base poles is set to an even number of four or more. This polygonal structure, together with connector 7, not only forms a stable landing base, but also improves the bottom's resistance to impact deformation through the transformation of rigid nodes.

[0019] In terms of vertical connection, the support diameter strips 3 are spaced apart along the circumference of the protective ring 1; the upper end of the support diameter strip 3 is fixedly connected to the protective ring 1 (in this embodiment, welding can be used if the material allows; if different materials are used, clamps can be used for fixing); the lower end of the support diameter strip 3 is connected to the connector 7; specifically, the lower end of the support diameter strip 3 is detachably fixed to the connector 7 by bolts or rivets.

[0020] When the bottom of the device is impacted and a seat rod is deformed, the user only needs to remove the bolts at the corresponding connector 7 to replace the damaged seat rod individually, without having to replace the entire protective device, which greatly reduces maintenance costs.

[0021] To further enhance the impact resistance of the protective device's sides, prevent the intrusion of slender external objects, or prevent the device from undergoing large deformation and squeezing the blades during a violent collision, a reinforcing section is also provided between two adjacent support bars 3.

[0022] The reinforcing components include an arc-shaped transverse liner 4, a Y-shaped support 5, and a reinforcing radial strip 6. These three components form a multi-triangular support structure in space. Arc-shaped transverse support 4: It is horizontally installed between two adjacent support diameter bars 3, and its two ends are respectively connected to the lower middle area of ​​the support diameter bars 3; Y-shaped support 5: It has an inverted Y-shaped structure. Its lower end convergence point is fixedly connected to the middle of the arc-shaped horizontal liner 4, and its upper two open ends are respectively connected to the upper part of the two support diameter bars 3. Reinforcing strip 6: Located at the center of the cell in a vertical line, its lower end is connected to the connection between the Y-shaped support 5 and the arc-shaped horizontal liner 4 (or directly connected to the bottom of the Y-shaped support 5), and its upper end extends upward and is fixedly connected to the protective ring 1.

[0023] In terms of materials and manufacturing processes, considering the impact of the cage structure on the drone's endurance, the arc-shaped horizontal bushing 4, the Y-shaped support 5, and the reinforcing diaphragm 6 are all made of 7075 aluminum alloy; 7075 aluminum alloy has extremely high strength and hardness, and can effectively resist high-speed impacts. At the same time, in order to further reduce weight, hollow grooves (or weight-reduction holes) are opened on the surface of the above three components.

[0024] When in use, the drone 8 is placed inside the protective device; the original landing gear of the drone 8 is fixed on the seat ring 2, and the protective ring 1 at the top of the device is always above the drone propeller.

[0025] When the drone operates in a confined space (such as a tunnel or pipe): if a side collision occurs, the external impact force will first act on the protective ring 1 or the support strip 3, and then quickly disperse the force to the entire cage frame through the Y-shaped support 5 and the arc-shaped cross bushing 4, so as to avoid local dents touching the propeller blades.

[0026] If the drone goes out of control and falls upside down or collides with its bottom, the polygonal base consisting of the protective ring 1 and the connector 7 will directly bear the impact force, protecting the fragile drone inside from directly touching the ground.

[0027] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A cage-type protection device for unmanned aerial vehicles (UAVs), characterized in that, include: The device includes a protective ring (1), a seat ring (2), and several support rails (3) spaced circumferentially and connecting the protective ring (1) and the seat ring (2); the seat ring (2) is smaller than the protective ring (1); the lower end of the UAV's landing gear is fixedly connected to the seat ring (2), so that the protective ring (1) is positioned above the UAV's propeller blades; the seat ring (2) is formed by several seat rods connected end to end, and two adjacent seat rods are fixedly connected by a connector (7); the lower end of the support rails (3) is connected to the connector (7).

2. The cage-type protection device for unmanned aerial vehicles according to claim 1, characterized in that, It also includes a reinforcing part disposed between two adjacent support diameter bars (3); the reinforcing part includes an arc-shaped horizontal bushing (4), a Y-shaped support member (5) and a reinforcing diameter bar (6); the two ends of the arc-shaped horizontal bushing (4) are respectively connected to the two adjacent support diameter bars (3); the lower end of the Y-shaped support member (5) is connected to the arc-shaped horizontal bushing (4), and the upper end is respectively connected to the upper part of the two support diameter bars (3); the reinforcing diameter bar (6) is disposed between the Y-shaped support member (5) and the protective ring (1), and its lower end is connected to the bottom of the Y-shaped support member (5), and its upper end is connected to the protective ring (1).

3. The cage-type protection device for unmanned aerial vehicles according to claim 2, characterized in that, The arc-shaped horizontal liner (4), the Y-shaped support (5), and the reinforcing diaphragm (6) are all made of aluminum alloy, and the surfaces of the arc-shaped horizontal liner (4), the Y-shaped support (5), and the reinforcing diaphragm (6) are all provided with a hollow structure.

4. A cage-type protection device for unmanned aerial vehicles according to any one of claims 1 to 3, characterized in that, The upper end of the support strip (3) is fixedly connected to the guard ring (1); the lower end of the support strip (3) is detachably connected to the connector (7) by bolts or rivets.

5. A cage-type protection device for unmanned aerial vehicles according to claim 4, characterized in that, The number of the seat rods is an even number greater than or equal to four, and the seat ring (2) has a centrally symmetrical polygonal structure.

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