Hook recovery device suitable for recovering sky hook of small unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicle recycling, in particular to a hook recycling device suitable for recycling a small unmanned aerial vehicle sky hook, which comprises a hook body and an elastic limiting component, the hook body is used for being connected with a wing tip of a wing, and a long-strip hook groove with an opening at one end is arranged on the hook body. The open end of the long-strip hook groove is in smooth transition with the end part of the front edge of the wing; one end of the elastic limiting assembly is fixedly connected to the hook body, and the other end of the elastic limiting assembly is located at the opening of the long-strip hook groove. According to the utility model, unhooking accidents of the unmanned aerial vehicle in the sky hook recovery process are avoided, and the recovery success rate is improved.

Description

Technical Field

[0001] This utility model relates to the field of drone recycling technology, specifically to a recycling hook device suitable for the recovery of small drones. Background Technology

[0002] Catapult takeoff / skyhook recovery is a newly developed UAV takeoff and landing technology in recent years. This takeoff and landing method does not require a runway and has low requirements for launch and recovery sites, meeting the high mobility requirements of field operations. It is also particularly suitable for ship takeoff and landing. Therefore, the UAV skyhook recovery method has great advantages.

[0003] During hook-based recovery, the drone experiences a very high load when the retrieval hook attaches to the rope. This load needs to be transferred to the wings and then to the drone's fuselage. Furthermore, the retrieval rope must be locked in place after entering the hook mechanism to prevent slippage and damage from a fall. The rope should also be easily removable upon completion of the recovery. Currently, most hook-based drones use complex, costly, and unreliable hook recovery devices, which often slip into knots after the rope enters the hook. If a knot occurs at the hook's entry point during recovery, a detachment accident will occur, resulting in recovery failure.

[0004] Therefore, there is a need to provide a recovery hook device suitable for the recovery of small drones to solve the above problems. Utility Model Content

[0005] This invention provides a recovery hook device suitable for the recovery of small drones, in order to solve existing problems.

[0006] The present invention provides a recovery hook device suitable for recovering small unmanned aerial vehicles (UAVs), which adopts the following technical solution, including:

[0007] The hook body, which is used to connect with the wingtip of the wing, is provided with a long hook groove with one end open, and the open end of the long hook groove smoothly transitions to the end of the leading edge of the wing.

[0008] And an elastic limiting component, one end of which is fixedly connected to the hook body, and the other end is located at the opening of the long hook groove.

[0009] Preferably, the hook body includes: a support plate, the support plate is connected to the wingtip of the wing, a triangular plate is provided on the support plate, an arc plate is provided on one side of the triangular plate, an elongated hook groove is formed between the outer arc surface of the arc plate and the side of the triangular plate, and a connecting hole for connecting an elastic limiting component is provided on a section near the free end of the arc plate.

[0010] Preferably, the elastic limiting component includes: a mouth-shaped elastic ring, and the mouth-shaped elastic ring is provided with an open end, the two ends of the open end are parallel, wherein two connecting holes are provided on a section near the free end of the arc plate, and the two ends of the mouth-shaped elastic ring are connected to the corresponding connecting holes.

[0011] Preferably, a groove is provided on the outer arc surface of the arc plate, wherein, after the slit-shaped elastic ring is deformed by the retrieval capture rope of the hook, the part of the slit-shaped elastic ring away from its open end is squeezed into the groove.

[0012] Preferably, a docking rib is installed inside the wingtip, and a section of the docking rib near the leading edge of the wing is connected to the support plate.

[0013] Preferably, a weight-reducing groove is provided on the docking rib.

[0014] Preferably, the length of the long bar groove is 1.5 times the diameter of the hook retrieval capture rope.

[0015] The beneficial effects of this utility model are:

[0016] This utility model provides a simple and reliable recovery hook device. The recovery hook device is used in conjunction with the capture rope of the ground recovery device, so that the capture rope enters the long hook groove of the hook body of the recovery hook device along the leading edge of the wing. The elastic limiting component prevents the capture rope from coming out of the long hook groove. It has the function of capturing and locking the UAV, and can also ensure that the UAV does not get off the hook during the sky hook recovery process, thereby improving the recovery success rate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a recovery hook device for recovering small unmanned aerial vehicles (UAVs) mounted on the wing.

[0019] Figure 2 This is a schematic diagram showing the connection between the hook body and the docking rib of this utility model;

[0020] Figure 3 This is a schematic diagram of the hook body of this utility model;

[0021] Figure 4 for Figure 3 The right view;

[0022] Figure 5This is a schematic diagram of the orifice-shaped elastic ring of this utility model;

[0023] Figure 6 This diagram illustrates the specific usage of this utility model on a drone.

[0024] In the diagram: 1. Hook body; 11. Mounting hole; 12. Connecting hole; 13. Long hook groove; 14. Groove; 2. Elastic ring with opening; 3. Mounting screw; 4. Connecting rib; 5. Wing; 51. Wing leading edge. Detailed Implementation

[0025] 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.

[0026] An embodiment of the present invention provides a recovery hook device suitable for the recovery of small unmanned aerial vehicles (UAVs), such as... Figure 1 As shown, it includes: a hook body 1 and an elastic limiting component. The hook body 1 is used to connect with the wingtip of the wing 5. The hook body 1 is provided with a long hook groove 13 with one end open. The opening end of the long hook groove 13 and the end of the leading edge 51 of the wing 5 are smoothly transitioned. The length of the long hook groove 13 is 1.5 times the diameter of the capture rope for retrieval. One end of the elastic limiting component is fixedly connected to the hook body 1, and the other end of the elastic limiting component is located at the opening of the long hook groove 13.

[0027] like Figure 3 and Figure 4 As shown, the hook body 1 includes: a support plate, such as... Figure 2 As shown, mounting screws 3 are provided on the support plate. These screws pass through mounting holes 11 on the support plate and connect to the mating rib 4 installed inside the wingtip of the wing 5. Specifically, the section of the mating rib 4 near the leading edge 51 of the wing 5 is connected to the support plate. The mating rib 4 is connected inside the wing skin at the wingtip. The mating rib 4 is connected to the wing skin by gluing or riveting, thereby transferring the load of the lanyard to the wing, completing the load transfer reliably. After installation, the open end of the long groove 13 of the hook body 1 faces the leading edge 51 of the wing 5, and the inner wall of the long groove 13 smoothly transitions to the leading edge 51 of the wing.

[0028] like Figure 4 As shown, a triangular plate is provided on the support plate, and an arc-shaped plate is provided on one side of the triangular plate. An elongated hook groove 13 is formed between the outer arc surface of the arc plate and the side of the triangular plate. Two connecting holes 12 for connecting the elastic limiting component are provided on a section near the free end of the arc plate.

[0029] like Figure 5 As shown, the elastic limiting component includes: a mouth-shaped elastic ring 2, and the mouth-shaped elastic ring 2 is provided with an open end. The two ends of the open end are parallel. The two ends of the mouth-shaped elastic ring 2 are connected to the corresponding connecting holes 12. It should be noted that the two connecting holes 12 form a limiting effect on the mouth-shaped elastic ring 2, so that the mouth-shaped elastic ring 2 can only undergo slight deformation under force at its free end.

[0030] like Figure 4 As shown, the width of the long hook groove 13 is 2mm larger than the diameter of the hook retrieval capture rope. A groove 14 is provided on the outer arc surface of the arc plate. When the orifice elastic ring 2 is deformed by the hook retrieval capture rope, the part of the orifice elastic ring 2 away from its open end is squeezed into the groove 14. The groove is used to limit the position of the orifice elastic ring 2 when it rotates, while not preventing the hook retrieval capture rope from sliding into the bottom of the long hook groove 13.

[0031] like Figure 2 As shown, a weight-reducing groove is provided on the docking rib 4.

[0032] In specific usage, such as Figure 6 As shown, two recovery hook devices are designed, which are installed at the wingtips of the left and right wings of the UAV, respectively. This allows the UAV to be recovered by choosing the more convenient and safer recovery hook device on the side that is more convenient and safer, depending on factors such as geography and weather.

[0033] Working principle

[0034] When recovering a drone, this utility model's recovery hook device is used in conjunction with a skyhook recovery capture rope. The skyhook recovery capture rope is pre-set before the drone is recovered. Under the precise guidance of the recovery guidance system, the drone flies towards the skyhook recovery capture rope. When the leading edge 51 of the drone's wing hits the capture rope, due to the inertia of motion and the certain sweep angle of the leading edge 51, the capture rope will slide along the leading edge 51 from the point of impact to the wingtip. When it slides towards the opening of the long hook groove 13 of the hook body 1, the slit-shaped elastic ring 2 is deformed by the squeezing force of the skyhook recovery capture rope. The skyhook recovery capture rope slides into the long hook groove 13 until the inner bottom. At the same time, the slit-shaped elastic ring 2 rebounds to its initial state under the action of the rebound force, that is, the slit-shaped elastic ring 2 abuts against the rear wall of the long hook groove 13 of the hook body 1. The skyhook recovery capture rope cannot be unhooked, thus locking the drone with the capture rope, thereby completing the safe recovery of the drone.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A recovery hook device suitable for recovering small unmanned aerial vehicles (UAVs), characterized in that, include: The hook body (1) is used to connect with the wingtip of the wing (5). It is provided with a long hook groove (13) with one end open. The opening end of the long hook groove (13) and the end of the leading edge (51) of the wing (5) are smoothly connected. And an elastic limiting component, one end of which is fixedly connected to the hook body (1), and the other end of which is located at the opening of the long hook groove (13); The hook body (1) includes: a support plate, a wingtip connection between the support plate and the wing (5), a triangular plate is provided on the support plate, an arc plate is provided on one side of the triangular plate, a long hook groove (13) is formed between the outer arc surface of the arc plate and the side of the triangular plate, and a connecting hole (12) for connecting the elastic limiting component is provided on a section near the free end of the arc plate. The elastic limiting component includes: a mouth-shaped elastic ring (2), and the mouth-shaped elastic ring (2) is provided with an open end, the two ends of the open end are parallel, wherein two connecting holes (12) are provided on a section near the free end of the arc plate, and the two ends of the mouth-shaped elastic ring (2) are connected to the corresponding connecting holes (12).

2. The recovery hook device for recovering small unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, A groove (14) is provided on the outer arc surface of the arc plate. When the mouth-shaped elastic ring (2) is deformed by the hook retrieval capture rope, a section of the mouth-shaped elastic ring (2) away from its opening end is squeezed into the groove (14).

3. A recovery hook device suitable for recovering small unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, A docking rib (4) is installed inside the wingtip of the wing (5). The section of the docking rib (4) near the leading edge (51) of the wing (5) is connected to the support plate.

4. A recovery hook device suitable for recovering small unmanned aerial vehicles according to claim 3, characterized in that, A weight-reducing groove is provided on the docking rib (4).

5. A recovery hook device suitable for recovering small unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, The length of the long bar groove (13) is at least 1.5 times the diameter of the hook retrieval capture rope.

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