Gas bag capable of autoinflation underwater

A technology of automatic inflation and air bag, applied in the field of air bag, which can solve the problems of long cycle, high cost and high risk.

Inactive Publication Date: 2014-08-20
NINGBO CHENGDA MACHINERY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of these methods have the disadvantages of heavy workload, high cost, high risk and long period

Method used

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  • Gas bag capable of autoinflation underwater

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Embodiment Construction

[0007] As shown in the accompanying drawings, it is a specific embodiment of the air bag that can be automatically inflated underwater according to the present invention. Including: gas cylinder shell (1), spring (2), valve inner nozzle (3), reinforcement sleeve (4), valve jacket (5), positioning groove (6), top wire (7), sealing ring (8) , screw sleeve (9) and air bag (10).

[0008] Among them, the gas cylinder casing (1) is welded with steel plates, and a reinforcing sleeve (4) is welded at the valve where the gas enters and exits.

[0009] The deflation valve is made up of a valve overcoat (5) and a valve inner mouth (3), and the outermost end of the valve overcoat (5) has threads for connecting the air bag (10). The accompanying drawing shows the state that the inside of the gas cylinder is filled with high-pressure gas and the air bag (10) is not inflated. At this time, the inside of the positioning groove (6) is filled with a whole piece of edible rock sugar or other no...

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PUM

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Abstract

A gas bag capable of autoinflation underwater is designed in the invention. The gas bag comprises a gas cylinder housing (1), a spring (2), a valve inner-nozzle (3), a reinforced sleeve (4), a valve bushing (5), a locating slot (6), a jackscrew (7), a sealing ring (8), a thread sleeve (9) and a gas bag (10). When the gas bag is filled with high pressure gas, the locating slot (6) is filled with a whole piece of edible rock sugar and the outside of the locating slot is sealed up with paraffin. The jackscrew (7) is screwed. Before the gas bag and a gas cylinder are poured underwater to carry out air inflation work, a small hole is poked in the paraffin seal outside the locating slot (6) of the gas cylinder according to the sinking depth underwater. Then, the jackscrew is screwed down, and the gas cylinder and the gas bag are poured into water. After the rock sugar in the locating slot (6) is dissolved underwater, the spring (2) pushes the valve inner-nozzle (3) to move outwards for a distance L. the valve inner-nozzle (3) is communicated with a venthole in the valve bushing (5), and high pressure gas in the gas cylinder is automatically ejected to inflate the gas bag.

Description

(1) Technical field [0001] The invention relates to an air bag, especially an air bag with simple structure, convenient operation, safety, reliability and low cost, which can be automatically inflated underwater. It can be widely used in salvage operations of large sunken ships and wrecked submarines, and belongs to maritime salvage. technology field. (2) Background technology [0002] Existing international large-scale submarine salvage method mainly contains two kinds at present: buoy drum method and hoisting method, that is to say, is equivalent to fishing the submarine from the seabed with bigger buoyancy boat or buoy drum. These two methods have the disadvantages of heavy workload, high cost, high risk and long period. (3) Contents of the invention [0003] In order to make up for the deficiencies in the prior art, the present invention provides a simple structure, convenient operation, safe and reliable salvage air bag for large sunken ships and wrecked submarines, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63C7/12
Inventor 李贤明李乐水李军辉
Owner NINGBO CHENGDA MACHINERY RES INST
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