Underwater airbag recovery device for cross-domain amphibious unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicle recovery equipment, and particularly relates to a cross-domain amphibious unmanned aerial vehicle underwater air bag recovery device, an inflation assembly and an air bag assembly are arranged in an unmanned aerial vehicle hood, the unmanned aerial vehicle hood is provided with an air bag placing frame and an air bag cover plate corresponding to the air bag placing frame, and an air bag body is arranged in the air bag placing frame; the top of the gas cylinder installation part is in threaded connection with a gunpowder installation part, the side end of the gas cylinder installation part is in threaded connection with a pneumatic plug, the bottom of the pneumatic plug is in threaded connection with a gas cylinder body, an ejector pin matched with the gas cylinder body is slidably connected into the gas cylinder installation part, and a compression spring is arranged between the ejector pin and the gas cylinder installation part. An air bag limiting piece is arranged at the bottom of the air bag containing frame, an air nozzle body matched with the air bag limiting piece is arranged on the air bag body, an air nozzle screw cap matched with the air nozzle body is arranged in the air bag limiting piece, and a pagoda head is arranged at the bottom of the air nozzle screw cap. A gas pipe is arranged between the pagoda head and the gas cylinder plug, and a metal film is arranged on a bottle opening of the gas cylinder body.

Description

Technical Field

[0001] The utility model belongs to the technical field of UAV recovery equipment, and particularly relates to an underwater airbag recovery device for cross-domain amphibious UAVs. Background Technique

[0002] One of the original intentions of China to form a UAV "swarm" is to break through the air defense network of aircraft carrier fleets through a large number of UAVs. With the rapid rise of the research and development of folding-wing UAVs, the research and development of cross-domain amphibious UAVs is also urgently following up. Therefore, the underwater recovery problem of cross-domain amphibious UAVs needs to be solved urgently;

[0003] At present, it is difficult to recover cross-domain amphibious UAVs after they complete tasks underwater. The recovery technologies of cross-domain amphibious UAVs include manipulator grasping, recovery cages, or installing oil pumps and oil sacs in the UAVs to control floating and sinking, etc. These methods are difficult to operate, have complex technologies, and high costs; UAV airbag products all burst immediately after falling into the water and cannot be controlled independently;

[0004] This patent elaborates on an airbag recovery device for amphibious UAVs, which has a simple structure installation, low cost, simple operation, and light weight. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an underwater airbag recovery device for cross-domain amphibious UAVs, which solves the above technical problems.

[0006] The solution adopted by the utility model is: an underwater airbag recovery device for cross-domain amphibious UAVs, including an inflation component, an airbag component, and a UAV head cover, characterized in that:

[0007] The inflation component and the airbag component are arranged inside the UAV head cover. The UAV head cover is provided with an airbag placement frame and an airbag cover corresponding to the airbag placement frame. An airbag body is arranged inside the airbag placement frame;

[0008] The inflation component includes a gunpowder installation part, a gunpowder body, a compression spring, a thimble, a gas cylinder installation part, a pneumatic plug, and a gas cylinder body;

[0009] The top of the gas cylinder installation part is threadedly connected with the gunpowder installation part, the side part is threadedly connected with the pneumatic plug, the bottom of the gas cylinder installation part is threadedly connected with the gas cylinder body, a thimble cooperating with the gas cylinder body is slidably connected inside the gas cylinder installation part, a compression spring is arranged between the thimble and the gas cylinder installation part, and a gunpowder body is arranged at the bottom of the gunpowder installation part,

[0010] The airbag component includes an airbag body, a nozzle body, an airbag limiting part, a sealing ring, a nozzle screw cap, a sealing piece, and a pagoda head;

[0011] The bottom of the described airbag placement frame is provided with an airbag limiting member, the airbag body is provided with a nozzle body that cooperates with the airbag limiting member, the airbag limiting member is provided with a nozzle screw cap that cooperates with the nozzle body, and the bottom of the nozzle screw cap is provided with a pagoda head;

[0012] A trachea is provided between the pagoda head and the gas cylinder plug, and a metal film is provided at the bottle mouth of the gas cylinder body.

[0013] Preferably, a sealing ring is provided between the nozzle screw cap and the airbag limiting member, and a sealing piece that cooperates with the pagoda head is provided on the nozzle screw cap.

[0014] Preferably, the gunpowder body is a current-triggered micro gunpowder.

[0015] Preferably, the gas cylinder body is a high-pressure carbon dioxide gas cylinder.

[0016] Preferably, the airbag body is made of TPU pressure-resistant material.

[0017] Preferably, the drone hood and the airbag cover plate are connected by nylon screws.

[0018] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view of the present utility model.

[0020] Figure 2 is the top view of the present utility model.

[0021] Figure 3 is the sectional view taken along the A-A line of the front view of the present utility model.

[0022] Figure 4 is the perspective view of the present utility model.

[0023] Reference numerals: 1, drone hood; 2, airbag placement frame; 3, airbag cover plate; 4, airbag body; 5, gunpowder mounting member; 6, gunpowder body; 7, compression spring; 8, ejector pin; 9, gas cylinder mounting member; 10, pneumatic plug; 11, gas cylinder body; 12, nozzle body; 13, airbag limiting member; 14, sealing ring; 15, nozzle screw cap; 16, sealing piece; 17, pagoda head; 18, trachea. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Regarding the foregoing and other technical contents, features and effects of the present utility model, in the following with reference to the attached Figures 1-4In the detailed description of the embodiments, it will be clearly presented. The structural contents mentioned in the following embodiments are all referenced to the accompanying drawings of the specification.

[0025] Next, various exemplary embodiments of the present utility model will be described with reference to the accompanying drawings.

[0026] Embodiment 1, an underwater airbag recovery device for a cross - domain amphibious unmanned aerial vehicle, includes an inflation assembly, an airbag assembly, and a drone hood 1, and is characterized in that:

[0027] The inflation assembly and the airbag assembly are arranged inside the drone hood 1. The drone hood 1 is provided with an airbag placement frame 2 and an airbag cover plate 3 corresponding to the airbag placement frame 2. An airbag body 4 is arranged inside the airbag placement frame 2;

[0028] The inflation assembly includes a gunpowder mounting member 5, a gunpowder body 6, a compression spring 7, a thimble 8, a gas cylinder mounting member 9, a pneumatic plug 10, and a gas cylinder body 11;

[0029] The top of the gas cylinder mounting member 9 is thread - connected with the gunpowder mounting member 5, the side is thread - connected with the pneumatic plug 10, the bottom of the gas cylinder mounting member 9 is thread - connected with the gas cylinder body 11. A thimble 8 cooperating with the gas cylinder body 11 is slidably connected inside the gas cylinder mounting member 9. A compression spring 7 is arranged between the thimble 8 and the gas cylinder mounting member 9. The bottom of the gunpowder mounting member 5 is provided with the gunpowder body 6,

[0030] The airbag assembly includes an airbag body 4, an air nozzle body 12, an airbag limiting member 13, a sealing ring 14, an air nozzle screw cap 15, a sealing piece 16, and a bell - mouth head 17;

[0031] An airbag limiting member 13 is arranged at the bottom of the airbag placement frame 2. An air nozzle body 12 cooperating with the airbag limiting member 13 is arranged on the airbag body 4. An air nozzle screw cap 15 cooperating with the air nozzle body 12 is arranged inside the airbag limiting member 13. A bell - mouth head 17 is arranged at the bottom of the air nozzle screw cap 15;

[0032] A trachea 18 is arranged between the bell - mouth head 17 and the gas cylinder plug 10. A metal film is arranged at the bottle mouth of the gas cylinder body 11;

[0033] A sealing ring 14 is arranged between the air nozzle screw cap 15 and the airbag limiting member 13. A sealing piece 16 cooperating with the bell - mouth head 17 is arranged on the air nozzle screw cap 15;

[0034] The gunpowder body 6 is a current - triggered micro - gunpowder;

[0035] The gas cylinder body 11 is a high - pressure carbon dioxide gas cylinder;

[0036] The airbag body 4 is made of TPU pressure - resistant material;

[0037] The drone hood 1 and the airbag cover plate 3 are connected by nylon screws.

[0038] Installation of the inflation assembly: The gunpowder body 6 is filled in the gunpowder mounting part 5, with an external power supply lead. The inner cavity of the gunpowder mounting part 5 is filled with structural adhesive for fixation and sealing; The ejector pin 8 is stuffed into the impact chamber provided in the gas cylinder mounting part 9, and the mouth of the gas cylinder body 11 is screwed onto the thread at the port of the impact chamber of the gas cylinder mounting part 9; The compression spring 7 is inserted from the port of the trigger chamber of the gas cylinder mounting part 9 and abuts against the end face of the ejector pin 8. The gunpowder mounting part 5 filled with the gunpowder body 6 is screwed onto the thread at the port of the trigger chamber of the gas cylinder mounting part 9, and at the same time, the lower end face of the gunpowder mounting part 5 presses the compression spring 7; The pneumatic plug 10 is screwed onto the side-end threaded hole of the gas cylinder mounting part 9; The entire inflation assembly is installed at a suitable position of the amphibious drone.

[0039] Installation of the airbag assembly: The airbag limiting part 13 is installed at the bottom of the airbag placement frame; A sealing ring 14 is installed inside the airbag limiting part 13; The nozzle body 12 is hot-pressed onto the airbag body 4, and the nozzle body 12 and the airbag body 4 are integrated; The nozzle body 12 of the airbag body 4 is inserted into the airbag limiting part 13, the nozzle body 12 presses the sealing ring 14, and the nozzle screw cap 15 is screwed onto the nozzle body 12 and presses the sealing ring 14; A sealing sheet 16 is inserted into the pagoda head 17, and the two are screwed onto the airbag limiting part 13; The installed multiple sealing parts ensure that there is no air leakage during the gas transmission process; The airbag assembly is installed at the installation part of the amphibious drone. The picture shows it installed in the hood. After installation, the airbag cover plate 3 is installed on the hood and the nylon screws are screwed in; The inflation assembly and the airbag assembly are connected by an air pipe 18. One end of the air pipe 18 is connected to the pagoda head 17, and the other end is connected to the pneumatic plug 10.

[0040] Working principle: When the cross-domain amphibious drone completes its navigation mission underwater or encounters an emergency underwater, a small amount of current is supplied to the gunpowder lead to detonate the gunpowder body 6. The impact of the explosion of the gunpowder body 6 is transmitted to the end face of the ejector pin 8 to quickly eject the ejector pin 8. The tip of the ejector pin 8 hits the metal film of the gas cylinder body 11 to pierce it. A large amount of gas released by the gas cylinder body 11 is transported to the airbag assembly through the pneumatic plug 10 and the air pipe 18. The airbag body 4 quickly inflates and expands, pulling off the nylon screws between the airbag cover plate 3 and the drone hood 1 to push open the airbag cover plate 3. After the airbag cover plate 3 is pushed open, the airbag pops out and quickly expands completely; The inflated airbag body 4 has a large buoyancy, which can quickly float the amphibious drone from underwater to the water surface, thus realizing the recovery of the amphibious drone.

[0041] It solves the problem that the current drone recovery airbag will expand immediately when encountering water and cannot be applied to this cross-domain amphibious drone that needs to operate underwater for a long time;

[0042] At present, underwater drones can also control their floating and sinking by discharging the water in the body through an oil pump and an oil bladder, but there are technical problems of large volume and heavy weight in this system;

[0043] The structure of this application is small and easy to install, with a lightweight design. For cross-domain amphibious drones that require both aerial and underwater operations, there are many loading units and the need for lightweight.

[0044] The above description is only for explaining the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various equivalent forms that conform to the idea of the present utility model are within the protection scope of the present utility model.

Claims

1. A cross-domain amphibious UAV underwater airbag recovery device, comprising an inflation component, an airbag component and a UAV head cover (1), characterized in that: The inflation assembly and the airbag assembly are arranged inside the drone hood (1); the drone hood (1) is provided with an airbag placement frame (2) and an airbag cover (3) corresponding to the airbag placement frame (2); an airbag body (4) is arranged inside the airbag placement frame (2); The inflation assembly comprises a gunpowder mounting part (5), a gunpowder body (6), a compression spring (7), an ejector pin (8), a gas cylinder mounting part (9), a pneumatic plug (10), and a gas cylinder body (11); The top of the gas cylinder mounting part (9) is threadedly connected to a gunpowder mounting part (5), the side of the gas cylinder mounting part (9) is threadedly connected to a pneumatic plug (10), the bottom of the gas cylinder mounting part (9) is threadedly connected to a gas cylinder body (11), a thimble (8) cooperating with the gas cylinder body (11) is slidably connected inside the gas cylinder mounting part (9), a compression spring (7) is provided between the thimble (8) and the gas cylinder mounting part (9), and a gunpowder body (6) is provided at the bottom of the gunpowder mounting part (5); The airbag assembly comprises an airbag body (4), an air nozzle body (12), an airbag stopper (13), a sealing ring (14), an air nozzle screw cap (15), a sealing sheet (16), and a pagoda head (17); An airbag stopper (13) is provided at the bottom of the airbag placement frame (2); an air nozzle body (12) cooperating with the airbag stopper (13) is provided on the airbag body (4); an air nozzle screw cap (15) cooperating with the air nozzle body (12) is provided inside the airbag stopper (13); a pagoda head (17) is provided at the bottom of the air nozzle screw cap (15); An air pipe (18) is provided between the pagoda head (17) and the pneumatic plug (10), and a metal film is provided at the mouth of the gas cylinder body (11).

2. The cross-domain amphibious drone underwater airbag recovery device according to claim 1 is characterized in that: A sealing ring (14) is provided between the air nozzle screw cap (15) and the air bag stopper (13), and a sealing sheet (16) cooperating with the pagoda head (17) is provided on the air nozzle screw cap (15).

3. The cross-domain amphibious drone underwater airbag recovery device according to claim 1 is characterized in that: The gunpowder body (6) is electric current-triggered micro-gunpowder.

4. The cross-domain amphibious drone underwater airbag recovery device according to claim 1 is characterized in that: The gas cylinder body (11) is a high-pressure carbon dioxide gas cylinder.

5. The cross-domain amphibious drone underwater airbag recovery device according to claim 1 is characterized in that: The airbag body (4) is made of TPU pressure-resistant material.

6. The cross-domain amphibious drone underwater airbag recovery device according to claim 1 is characterized in that: The drone head cover (1) and the airbag cover plate (3) are connected via nylon screws.

Images