Launch canister recovery device

Abstract

The launch canister recovery device comprises a plurality of floating units distributed around a ring groove in the outer wall of a launch canister, and each floating unit comprises an air bag, a fuel gas generator and a packaging assembly; the packaging assembly is used for packaging the air bag and the fuel gas generator in the annular groove at the initial time; the fuel gas generator is used for igniting and combusting to generate gas and inflating the air bag, and the aircraft sends an ignition signal to the fuel gas generator after being uncovered on the water surface and launched; the air bag is used for opening the packaging assembly after being inflated and providing buoyancy needed by floating for the launching cylinder, and a connecting belt is arranged on the air bag and penetrates out of the packaging assembly to be connected with the outer wall of the launching cylinder. According to the device, the launch canister can stably float on the water surface on the premise that normal execution of a launch task is prevented from being affected, and follow-up recovery of an operator can be achieved.

Description

Technical Field

[0001] The invention relates to marine recovery, and in particular to a launch tube recovery device. Background Art

[0002] After a spacecraft performs a launch mission in the sea, it will leave behind a launch tube. There is an open space in the launch tube, and its own buoyancy is insufficient to support floating. Therefore, it will sink in a short time and is almost impossible to recover, which not only causes waste but also affects the environment. Summary of the invention

[0003] The object of the present invention is to provide a launch tube recovery device, which can allow the launch tube to float stably on the water surface without affecting the normal execution of the launch mission, so as to provide subsequent recovery by operators.

[0004] The technical solution adopted by the present invention is: A launch tube recovery device comprises a plurality of floating units distributed around an annular groove on the outer wall of the launch tube, the floating units comprising an airbag, a gas generator and a packaging assembly; the packaging assembly is used to initially package the airbag and the gas generator in the annular groove; the gas generator is used to ignite and burn to generate gas and inflate the airbag, and the vehicle sends an ignition signal to the gas generator after opening the cover on the water surface and completing the launch; the airbag is used to open the packaging assembly after inflation and provide the launch tube with the buoyancy required for floating, and a connecting belt is provided on the airbag, which passes through the packaging assembly and is connected to the outer wall of the launch tube.

[0005] Preferably, a flow guide pipe is provided in the airbag, the outlet end of the gas generator is connected to the inlet end of the flow guide pipe, and the flow guide pipe is used to divert the gas filled in the airbag.

[0006] Preferably, the flow guide tube is cylindrical with one end open and the other end closed, and the outer circle is evenly distributed with diversion holes, and the open end of the flow guide tube is the inlet end.

[0007] Preferably, a connecting rope is tied to the guide tube, and the guide tube is installed in the airbag through the connecting rope.

[0008] Preferably, the airbag is cylindrical after being inflated.

[0009] Preferably, the connecting belt is attached around the outer circle of the airbag and cross-attached on the top surface of the airbag, converges at a point below the center of the bottom surface of the airbag and then extends to the outer wall of the launching tube.

[0010] Preferably, the back side of the gas generator is arc-shaped, and the back side of the gas generator fits tightly in the annular groove of the outer wall of the launch tube.

[0011] Preferably, separation bars for separating adjacent floating units are distributed in the annular groove.

[0012] Preferably, the airbag is made of polyurethane tape.

[0013] Preferably, the airbag is initially folded in a Z-shape and then sealed.

[0014] The beneficial effects of the present invention are: The gas generator of the device is started after the launch mission is completed, that is, the airbag is inflated. Even if one of the airbags is damaged, there are still other airbags to provide sufficient buoyancy, so that the launch tube can float stably on the water surface for subsequent recovery by operators; the device uses the annular groove on the outer wall of the launch tube to install each floating unit, and uses the packaging assembly for initial packaging, which can avoid affecting the normal execution of the launch mission; the device uses a gas generator for inflation, and the inflation response is fast and the inflation time is short. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the initial installation of the launch tube recovery device. For ease of observation, the packaging component has been removed.

[0016] Figure 2 This is a schematic diagram of the launch tube recovery device after inflation and deployment.

[0017] Figure 3 This is a top view of the launch tube recovery device after it is inflated and deployed.

[0018] Figure 4 is a schematic diagram of an airbag.

[0019] Figure 5 is a schematic diagram of the flow guide tube.

[0020] Figure 6 is a schematic diagram of a gas generator.

[0021] In the figure: 1-launching tube; 2-air bag; 3-gas generator; 4-ring groove; 5-dividing strip; 6-connecting belt; 7-guide tube; 8-connecting rope; 9-diverter hole. DETAILED DESCRIPTION

[0022] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0023] The present application discloses a launch tube recovery device, such as Figures 1 to 4As shown: it includes a plurality of floating units distributed around the annular groove 4 on the outer wall of the launch tube 1, and the floating unit includes an airbag 2, a gas generator 3 and a packaging assembly; the packaging assembly is used to initially package the airbag 2 and the gas generator 3 in the annular groove 4; the gas generator 3 is used to ignite and burn to generate gas and inflate the airbag 2, and the vehicle sends an ignition signal to the gas generator 3 after opening the cover on the water surface and completing the launch; the airbag 2 is used to open the packaging assembly after inflation and provide the launch tube 1 with the buoyancy required for floating, and a connecting belt 6 is provided on the airbag 2, and the connecting belt 6 passes through the packaging assembly and is connected to the outer wall of the launch tube 1. The gas generator 3 of the device is started after the launch mission is performed, that is, each airbag 2 is inflated. Even if one airbag 2 is damaged, there are still other airbags 2 to provide sufficient buoyancy, so that the launch tube 1 floats stably on the water surface for subsequent recovery by the operating personnel; the device uses the annular groove 4 on the outer wall of the launch tube 1 to install each floating unit, and uses the packaging assembly for initial packaging, which can avoid affecting the normal execution of the launch mission; the device uses the gas generator 3 for inflation, and the inflation response is fast and the inflation time is short.

[0024] like Figure 1 As shown, in this embodiment: separation bars 5 for separating adjacent floating units are distributed in the annular groove 4 .

[0025] like Figures 2 to 4 As shown, in this embodiment: the airbag 2 is cylindrical after being inflated; and the connecting belt 6 is attached to the outer circle of the airbag 2 and cross-attached on the top surface of the airbag 2, converges at a point below the center of the bottom surface of the airbag 2, and then extends to the outer wall of the launching tube 1.

[0026] like Figure 5 As shown, in the present embodiment: a flow guide tube 7 is provided in the airbag 2, the outlet end of the gas generator 3 is connected to the inlet end of the flow guide tube 7, and the flow guide tube 7 is used to divert the gas filled in the airbag 2 to prevent the high-temperature and high-pressure gas from directly impacting the tail of the airbag 2 and causing damage to the airbag 2; and, the flow guide tube 7 is cylindrical with one end open and the other end closed, and diversion holes 9 are evenly distributed on the outer circle, and the open end of the flow guide tube 7 is the inlet end; and, a connecting rope 8 is tied to the flow guide tube 7, and the flow guide tube 7 is installed in the airbag 2 through the connecting rope 8.

[0027] like Figure 6 As shown, in this embodiment: the back side of the gas generator 3 is arc-shaped, and the back side of the gas generator 3 fits tightly in the annular groove of the outer wall of the launch tube 1.

[0028] In this embodiment, the airbag 2 is made of polyurethane tape, which has the advantages of light weight, high strength, fire retardancy, good process performance, and long service life.

[0029] In this embodiment, the airbag 2 is initially folded in a Z-shape and then sealed.

[0030] In this embodiment, six floating units are used, and the airbag 2 of each floating unit provides a buoyancy of about 350 kg. The diameter of the airbag 2 is 800 mm and the length is 680 mm. The volume of the gas generator 3 is about 2.9 L.

[0031] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A launch tube recovery device, characterized in that: It comprises a plurality of floating units distributed around the annular groove on the outer wall of the launch tube, and the floating units comprise an airbag, a gas generator and a packaging assembly; the packaging assembly is used to initially package the airbag and the gas generator in the annular groove; the gas generator is used to ignite and burn to generate gas and inflate the airbag, and the vehicle sends an ignition signal to the gas generator after opening the cover on the water surface and completing the launch; the airbag is used to prop up the packaging assembly after inflation and provide the launch tube with the buoyancy required for floating, and a connecting belt is provided on the airbag, which passes through the packaging assembly and is connected to the outer wall of the launch tube.

2. The launch tube recovery device according to claim 1, characterized in that: A flow guide pipe is arranged in the airbag, the outlet end of the gas generator is connected to the inlet end of the flow guide pipe, and the flow guide pipe is used to divert the gas filled in the airbag.

3. The launch tube recovery device according to claim 2, characterized in that: The flow guide pipe is cylindrical, one end of which is open and the other end is closed, and the outer circle is evenly distributed with diversion holes. The open end of the flow guide pipe is the inlet end.

4. The launch tube recovery device according to claim 2, characterized in that: A connecting rope is tied to the guide tube, and the guide tube is installed in the airbag through the connecting rope.

5. The launch tube recovery device according to claim 1, characterized in that: The airbag is cylindrical when inflated.

6. The launch tube recovery device according to claim 5, characterized in that: The connecting belt is attached around the outer circle of the airbag and cross-attached on the top surface of the airbag, converges at a point below the center of the bottom surface of the airbag and then extends to the outer wall of the launching tube.

7. The launch tube recovery device according to claim 1, characterized in that: The back of the gas generator is arc-shaped, and the back of the gas generator fits tightly in the annular groove of the outer wall of the launch tube.

8. The launch tube recovery device according to claim 1, characterized in that: Separation bars for separating adjacent floating units are distributed in the annular groove.

9. The launch tube recovery device according to claim 1, characterized in that: The airbag is made of polyurethane tape.

10. The launch tube recovery device according to claim 1, characterized in that: Initially, the airbag is folded in a Z shape and then sealed.

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