JPS5814958B2 - emergency air cylinder - Google Patents

Description

Detailed Description of the Invention The present invention relates to an emergency air cylinder used for emergency surfacing during diving or for emergency escape in the event of a fire.The object of the present invention is to provide an emergency air cylinder that is small, lightweight, and easy to handle, and is particularly effective in accident prevention. The purpose of this project is to provide a new air cylinder that exhibits the following characteristics.

The present invention will be specifically described below based on embodiments shown in the drawings.

The emergency air cylinder of the present invention is characterized in that it is attached to a high-pressure container 1 and that a plug 2 is provided with a breathing device, a pressure adjustment mechanism, and a valve mechanism that automatically opens and closes according to pressure changes.

That is, the stopper 2 is formed with ventilation holes 3 whose one end communicates with the container 1 and the other end is branched and opens to the outside of the stopper, and a mouthpiece 4 is attached to the opening of one of the branch holes 31 to provide a breathing apparatus. At the same time, the other branch hole 32 is provided with a check valve 5 that allows outflow to the outside, and a demand valve 6 is provided at a suitable position in the vent hole 3, and a diaphragm 7 is provided in correspondence with the demand valve 6. , a booster lever 8 is tiltably provided between the diaphragm 7 and the demand valve 6, and the lever 8 is tilted by the operation of the diaphragm 7, and the lever 8 is connected to the valve operating rod 6.
1 to operate against the force of the spring 62.

A valve seat 9 is formed on the upstream side of the demand valve 6 in the ventilation hole 3, and a stop valve 10 is screwed onto the stop valve 10 from the outside of the plug body 2, and an air filling hole 12 is branched into the valve shaft hole 11. When filling with air, the stop valve 10 is moved back to open the air hole 3 and the air filling hole 1.
2, replace the plug 13 with a filling adapter (not shown) and fill with air. After filling, stop valve 1
0, remove the filling adapter and close the cap again.

However, the cylinder of the present invention is attached to the body for emergency use during diving operations, and is installed in an easily visible place indoors for disaster prevention purposes in case of an emergency.

Now, when using the cylinder while diving, the stop valve 10
When opened, the air in the high pressure container 1 flows through the ventilation hole 3 to medium pressure 16.
3 and reaches the tip of the demand valve 6, so that the user can immediately bite the mouthpiece 4 and breathe.

Due to the intake air, the vent hole 3 on the downstream side of the demand valve 6 forms a low-pressure part and becomes negative pressure, and the diaphragm 7 is displaced inward to operate the boost lever 8, which is activated by the valve operating rod 61.
is lowered against the force of the spring 62, the valve 6 is opened, and air flows into the mouth from the mouthpiece 4.

Air exhausted from the mouth flows through the mouthpiece 4 and into the vent hole 3.
When the air flows into the inside, the inside of the ventilation hole 3 becomes high pressure and the diaphragm 7 is restored, the boost lever 8 and the valve operating rod 61 are returned by the force of the spring 62, the valve is closed, and at this time, the inside of the ventilation hole 3 is restored. The exhaust air pushes the valve 5 open and the stopper 2
It is exhausted to the outside, and the above-mentioned operation is repeated again by breathing.

As described above, the present invention provides a stopper 2 attached to a high-pressure container 1;
A vent hole 3 communicating with the inside of the container is provided, a mouthpiece 4 and a check valve 5 for allowing outflow to the outside are provided, and a demand valve 6 and a diaphragm 7 for actuating the valve are provided in the vent hole 3. Since the pieces can be held together for suction and exhaust, it is small and lightweight, making it suitable as an emergency air cylinder and having an excellent effect on disaster prevention.

[Brief explanation of the drawing]

FIG. 1 is a front view, and FIG. 2 is an enlarged cross-sectional view of the stopper, which is a feature of the present invention. 1... High pressure container, 2... Stopper, 3...
...Vent hole, 31.32... Branch hole, 4.
...Mouthpiece, 5...Check valve, 6.
... Demand valve, 61 ... Valve operating rod, 7 ... Diaphragm, 8 ... Boost lever.

Claims (1)

[Claims] 1 Consists of a high-pressure container 1 and a stopper 2 screwed onto the container 1. The stopper 2 has a ventilation hole 3 that communicates with the container 1 at one end and branches at the other end and opens to the outside of the stopper. A mouthpiece 4 is provided at the opening of one branch hole 31, a check valve 5 that allows the water to flow outwards is provided at the other branch hole 32, and a normally closed demand valve 6 is provided in the vent hole 3. An emergency air cylinder characterized in that a diaphragm 7 is provided corresponding to the valve 6, and a boost lever 8 for operating a valve operating rod 61 is provided between the diaphragm 7 and the valve 6.