A drone recovery network

Abstract

A drone recovery net includes a net assembly and a net body. The net assembly includes a support rod, and the support rod is fixedly connected with an upper cross bar and a lower cross bar. After the net body is folded, one of the side faces is fixedly connected to the support rod, and two side faces adjacent to the side face are connected to the upper cross bar and the lower cross bar. The aerial net recovery of the fixed-wing drone of the present invention needs to be realized in a short time, and it is also necessary to achieve complete wrapping and protection of the drone after hitting the net. The present invention can achieve a wide range of folding and telescoping through the ingenious design of the recovery net, and can provide a certain damping force to stop the drone faster when the drone hits the net; it can completely wrap and protect the drone after the drone hits the net; the overall structure is compact and reasonable, light weight, small size, and easy to hang and store.

Description

Technical Field

[0001] The invention relates to a recovery net, in particular to a recovery net for fixed-wing UAVs. When a UAV hits the net, the recovery net can be used to buffer, brake and completely wrap the UAV through a folding and unfolding damping mechanism, thereby ultimately achieving safe recovery of the UAV. Background Art

[0002] Drone technology has achieved rapid development in recent years. This type of unmanned aerial vehicle has broken through the constraints of manned environments and greatly broadened the scope of human exploration and application areas.

[0003] Relevant statistics show that the probability of failure in the drone recovery process is much higher than in other working processes. Therefore, whether the drone recovery can be carried out safely, smoothly and reliably is related to the performance of the entire system. In the existing technical solutions, the drone recovery methods mainly include parachute recovery, aerial collision net recovery, arresting cable recovery and aerial rope hook recovery.

[0004] The net-hitting recovery method is currently widely used and has a high success rate. Foreign countries have achieved the net-hitting recovery of the RQ-2 "Pioneer" UAV using a single net and three poles. In recent years, the utility model patents for net-hitting recovery issued in China include CN201020679036, CN201220543611, CN201320039180, etc., and the invention patents include CN201410258717, CN201510275396, CN201510184873, etc.

[0005] As the breadth and depth of drone application environments continue to increase, conventional recovery net recovery methods have complex buffer structures, small recovery net deployment areas, inconvenient installation, and bulky sizes. They do not provide sufficient protection for the drone body and are increasingly unable to meet the safe recovery requirements for fixed-wing drones. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a foldable fixed-wing UAV recovery net with a certain damping force, a large unfolding area, easy installation and storage, compactness and lightness, and strong adaptability.

[0007] The present invention adopts the following technical solutions:

[0008] A drone recovery net comprises a net hanging component 1 and a net body 3. The net hanging component 1 comprises a support frame 11, and an upper net hanging cross bar 12 and a lower net hanging cross bar 13 are fixedly connected to the support frame 11. After the net body 3 is folded, one of the side surfaces is fixedly connected to the support frame 11, and two side surfaces adjacent to the side surface are connected to the upper net hanging cross bar 12 and the lower net hanging cross bar 13.

[0009] The recovery net also includes a buffer damping component 2, which includes a breaking rope 22. The net body 3 is connected by the breaking rope 22 after being folded, and the two ends of the breaking rope 22 are connected to the upper cross bar 12 and the lower cross bar 13 of the hanging net.

[0010] The two ends of the breaking rope 22 are connected to the lock buckles 21, and are connected to the upper cross bar 12 and the lower cross bar 13 of the net hanging assembly 1 through the lock buckles 21.

[0011] The net body 3 is folded both longitudinally and transversely.

[0012] The buffer damping assembly 2 includes a break rope 22 arranged in the transverse direction and a break rope arranged in the vertical direction. One end of the break rope 22 arranged in the transverse direction is connected to the support frame 11, and both ends of the break rope 22 arranged in the vertical direction are connected to the upper cross bar 12 and the lower cross bar 13 of the hanging net.

[0013] Beneficial effects of the present invention:

[0014] The aerial net recovery of the fixed-wing UAV of the present invention needs to be realized in a short time, and the UAV needs to be completely wrapped and protected after hitting the net. The present invention can achieve a wide range of folding and extension through the ingenious design of the recovery net, and can provide a certain damping force to stop the UAV faster when the UAV hits the net; the UAV can be completely wrapped and protected after hitting the net; the overall structure is compact and reasonable, light weight, small size, and easy to hang and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the foldable UAV recovery net of the present invention.

[0016] Figure 2 This is a schematic diagram of the hanging state of the foldable UAV recovery net according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the buffering and damping part of the foldable UAV recovery net according to an embodiment of the present invention.

[0018] In the figure: 1-net hanging assembly; 2-buffer damping assembly; 3-net body; 11-support frame; 12-upper cross bar of the net hanging; 13-lower cross bar of the net hanging; 21-lock; 22-breaking rope. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] The present invention provides a drone recovery net, which includes a net hanging component 1 and a net body 3. The net hanging component 1 serves as a support for the net body 3 and includes a support frame 11. The support frame 11 is fixedly connected with a net hanging upper cross bar 12 and a net hanging lower cross bar 13. After the net body 3 is folded, one of the side faces is fixedly connected to the support frame 11, and two side faces adjacent to the side face are connected to the net hanging cross bar 12 and the net hanging lower cross bar 13. When recovering a drone, the drone hits the net body 3, the folded net body 3 is opened, and the drone is braked and recovered.

[0021] In one or more feasible embodiments, the recovery net further includes a buffer damping component 2, which is used to quickly brake the drone. The buffer damping component 2 includes a break rope 22, and the net body 3 is connected by the break rope 22 after being folded, and the break rope 22 is connected to the net hanging component 1. Specifically, the net body 3 is first folded according to a certain order or rule, and then the break rope 22 is passed through the net body 3, and the two ends of the break rope 22 are connected to the net hanging component 1.

[0022] In one or more feasible embodiments, the above-mentioned buffer damping component 2 may also include a lock buckle 21, and the lock buckles 21 are connected to the two sides of the break rope 22. The break rope 22 is connected to the net hanging component 1 through the lock buckle 21. When the break rope 22 receives external force, it is disconnected from the lock buckle connection part or other parts, thereby releasing the net body 3 to brake and recover the drone.

[0023] In an embodiment of the present invention, the net body 3 can be folded both longitudinally and transversely, and the folding method is the existing folding method. That is, the net body folding method of the present invention can be selected to be folded transversely or longitudinally or both longitudinally and transversely. In each of the three folding states, the distribution method of the break rope 22 can be distributed transversely or longitudinally or both transversely and longitudinally. Among them, one end of the transversely distributed break rope 22 is connected to the support frame 11, and the other end is only used to fix the folded net body in the folded state. The two ends of the longitudinally distributed break rope 22 are respectively connected to the upper cross bar 12 and the lower cross bar 13 of the hanging net to fix the folded state. When distributed both transversely and longitudinally, its connection method is a combination of the above two connection methods.

[0024] like Figure 2 and Figure 3 As shown, a hole for passing the break rope 22 can be provided on the net body 3, and after the net body 3 is folded in a certain manner, the holes overlap, and after the break rope 22 passes through the hole, it is fixed by a lock buckle. The lock buckle can be an existing lock buckle, such as a nylon lock buckle, and the present invention is not limited thereto.

[0025] The buffer damping component of the present invention can be increased with a shear pin, the shear force of which is adjustable, one end of the shear pin is connected to the rod, and the other end is connected to the breaking rope, and the shear mechanism is used to shear the pulling rope.

[0026] In the present invention, the net body 3 is directly connected to the support frame 11, the upper cross bar 12 of the hanging net, and the lower cross bar 13 of the hanging net, and the connection is a non-fixed connection and is not connected by a breaking rope 22. The breaking rope 22 only fixes the folded state of the net body 3. When the breaking rope 22 of the net body 3 receives an external force, the breaking rope 22 breaks, the net body unfolds, and the drone is braked, while the connection state between the net body 3 and the hanging net assembly 1 is still maintained.

[0027] The working process of the present invention can be described as:

[0028] First, the net body 3 is folded and installed on the net hanging assembly. After the drone hits the net, the pull rope of the buffer damping assembly 2 connected to the net body 3 generates a certain damping force on the folded net body to be unfolded. The support frame 11 fixes the net body fixed thereon. When the net body 3 hung on the upper cross bar 12 and the lower cross bar 13 of the net hanging is unfolded, the pull rope 22 is broken and the lock buckle 21 is opened to fix the net body 3. At the same time, the total area of ​​the recovery net after unfolding is greatly increased compared with that in the folded state, which can well complete the wrapping of the drone and finally realize the safe recovery of the drone.

[0029] The net body 3 of the present invention is folded, which greatly increases the unfolding area of ​​the recovery net; after the drone hits the net, the net body is driven to open, and the recovery net can completely wrap the drone after it falls into the recovery net.

[0030] After the net body is folded, it is fixedly connected with the damping component by pulling the rope. The structure is ingenious, space-saving, and convenient for hanging and storage.

[0031] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0032] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a technician familiar with the field within the scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A drone recovery net, characterized by: The net-hanging assembly (1) comprises a net-hanging assembly (1) and a net body (3), wherein the net-hanging assembly (1) comprises a support rod (11), and the support rod (11) is fixedly connected to an upper net-hanging crossbar (12) and a lower net-hanging crossbar (13); after the net body (3) is folded, one side edge is fixedly connected to the support rod (11), and two side edges adjacent to the side edge are connected to the upper net-hanging crossbar (12) and the lower net-hanging crossbar (13); The recovery net further comprises a buffer damping component (2), wherein the buffer damping component (2) comprises a breaking rope (22), and the net body (3) is connected by the breaking rope (22) after being folded, and the two ends of the breaking rope (22) are connected to the upper cross bar (12) and the lower cross bar (13) of the hanging net; A hole is provided on the net body (3) for passing the breaking rope (22), and the breaking rope (22) is passed through the net body (3); The net body (3) is directly connected to the support rod (11), the upper cross bar (12) of the net hanging, and the lower cross bar (13) of the net hanging. The connection is a non-fixed connection and is not connected by a breaking rope (22). The breaking rope (22) only fixes the folded state of the net body (3). When the breaking rope (22) of the net body (3) is subjected to an external force, the breaking rope (22) breaks, the net body unfolds, and the drone is braked, while the connection state between the net body (3) and the net hanging assembly (1) is still maintained.

2. The drone recovery net according to claim 1, characterized in that: The two ends of the breaking rope (22) are connected to the lock buckles (21), and are connected to the upper cross bar (12) and the lower cross bar (13) of the net hanging assembly (1) through the lock buckles (21).

3. The drone recovery net according to claim 1, characterized in that: The net body (3) is folded both longitudinally and transversely.

4. A drone recovery net according to any one of claims 1 or 3, characterized in that: The buffer damping assembly (2) comprises a break rope (22) arranged in a transverse direction and a break rope (22) arranged in a vertical direction, wherein one end of the break rope (22) arranged in a transverse direction is connected to the support frame (11), and both ends of the break rope (22) arranged in a vertical direction are connected to the upper cross bar (12) and the lower cross bar (13) of the hanging net.

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