JPH09271523A - Gas supply device and gas supplier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure supply of aspiration oxygen over a relatively long time while using a small gas container by leading and connecting a plurality of auxiliary gas container cut units to a main gas container cut unit provided with a gas regulation mechanism, each on a primary side. SOLUTION: A plurality of auxiliary gas container cut units 1 are each provided with a check valve 2, and a main gas container cut unit 3 is provided with a gas regulation mechanism 4, the two 1, 3 being connected through a gas passage 5 on a primary side. The mechanism 4 is provided with an opening and closing valve 8 given a self-closing function on a primary gas passage 7 and is of a type to regulate gas pressure and flow with a pressure regulating load 9 with respect to the valve 8 and an flow reducer 11 of a gas outlet 10. The unit is provided with a safety device 12 maintaining the load 9 in a halt condition at the time of non-use. A gas container 13 filled with oxygen gas is mounted in each unit 3, 1, and after the cut operation of the container 13 the device 12 is disengaged, and after the valve 8 is moved by the pressure of the load 9 to the by open the passage 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas supply device and a gas supply device, and more particularly to a gas supply device and a gas supply device which can supply oxygen for breathing for a relatively long time while using a small gas container.

[0002]

2. Description of the Related Art Even if a tank for a disaster-prevention breathing apparatus currently used is small, its internal volume is as large as 10 liters.

[0003]

If it is large, it takes time other than the escape operation such as the opening / closing valve operation of the tank and the holding (carrying, carrying) of the tank, and the escape timing is missed. In addition, the pressure adjustment unit may break and become unusable when it is dropped or tumbled in a hurry. Besides, it is also expensive.

[0004]

In a gas supply device according to the present invention, a plurality of auxiliary gas container cutting devices each provided with a check valve are connected to a main gas container cutting device equipped with a gas adjusting mechanism on the primary side. And are integrally connected. The gas adjusting mechanism is of a normal type that adjusts the gas pressure and flow rate by an opening / closing valve that is given a tendency to self-close on the primary gas passage, a pressure adjusting load for the opening / closing valve, and a throttle at the gas outlet. Further, the main gas container cutting device is provided with a safety device for keeping the pressure adjusting load in a rest state when not in use.

Each of the auxiliary gas container cutting device and the main gas container cutting device has one end communicating with the auxiliary gas container cutting device on the gas flow path to an outlet on the downstream side of the check valve.
Further, the other end may be connected by a gas passage communicating with the primary gas passage of the main gas container cutting device.

The gas passage is a thin metal tube. The safety device axially penetrates the upper surface of the main gas container cutting device and has a neck groove on the outside and a spring receiver at the inner end, and a state in which the spring is repelled in the neck groove of the rod. In addition, it has a grip that elastically engages itself and an operation string for pulling this grip from the neck groove.

In the gas supply device according to the present invention, in the above-mentioned gas supply device, the auxiliary gas container cutting device is connected to the main gas container cutting device by a metal thin tube, and the main and auxiliary gas container cutting devices are provided. A gas container is attached to the container, and these are covered with an elastic case having an operation string of the safety device and a through hole for guiding the hose connected to the gas outlet of the main gas container cutting device to the outside. .

The elastic case is made of foamed resin, and has a main body and a lid, the main body has a chamber for closely accommodating the gas container, and the lid is a vertically-divided mating mold. A recess for closely accommodating the gas container cutting device and the gas adjusting mechanism and a through hole for the hose on the mating surface of the mating surface, and a through hole for the operation cord is provided on the one mating die. Good.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A gas supply device according to the present invention comprises:
Attach a small gas container containing oxygen gas to each of the main and sub gas container cutting devices and leave it open.

When the oxygen concentration becomes low or disappears due to fire in a mineway or extinguishing carbon dioxide gas in a computer room or the like, and the respiratory gas needs to be replenished, the safety device is removed. As a result, the gas adjusting mechanism operates and the on-off valve is opened by the pressure adjusting load, so that the oxygen gas that has reached the on-off valve from the gas containers attached to the main and auxiliary gas container cutting devices is The flow rate is adjusted by the throttle at the outlet and flows out to the outside. If this is led to the mask, all the amount of gas is breathed.

If the number of auxiliary gas container cutting devices is increased, the number of gas containers that can be used increases accordingly, so that it is possible to breathe for a long time.

Each of the auxiliary gas container cutting device and the main gas container cutting device has one end communicating with the auxiliary gas container cutting device on the gas flow path to an outlet on the downstream side of the check valve.
If the other end is connected by a gas passage that communicates with the primary gas passage of the main gas container cutting device, even if there is an unused auxiliary gas container cutting device, the check valve causes the gas to flow out from it. There is nothing to do.

If the gas passage is a thin metal tube, the metal pipe will not be bent and the gas passage will not be blocked even when subjected to vibrations or the like, so that the gas can be supplied reliably.

The safety device axially penetrates an upper surface of the main gas container cutting device and has a neck groove on the outside and a spring receiver at an inner end, and the spring is elastically fitted to the neck groove of the rod. If you have a claw that also elastically engages itself in the released state and an operation string for pulling out this claw from the neck groove, just pull the operation string to remove the grip from the neck groove of the rod. The gas supply device can be used with a simple operation.

According to a fifth aspect of the gas supplier of the present invention, the sub gas container cutting device is connected to the main gas container cutting device by a metal thin tube, and is connected to each of the main and sub gas container cutting devices. Since the above gas supply device is housed in the elastic case with the gas container attached, if you carry the case and pull the operation string when necessary to remove the pinch from the neck groove of the rod, oxygen will be immediately released. Can be supplied and there is a case so it will not hinder the gas adjustment mechanism even if dropped.

The elastic case is made of foamed resin, has a main body and a lid, the main body has a chamber for closely accommodating the gas container, and the lid is a vertically divided two-piece type. On the mating surface of the above, there are provided a recess for closely accommodating the gas container cutting device and the gas adjusting mechanism and a through hole for the hose, and the one mating die is provided with a through hole for the operation cord. Since the entire gas supply device is tightly accommodated in the elastic case, the gas supply device does not stop operating even if a considerable shock is applied, and the gas supply device can be stably used.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 is an auxiliary gas container cutting device, each of which is provided with a check valve 2. A main gas container cutting device 3 includes a gas adjusting mechanism 4. These auxiliary gas container cutting device 1
The main gas container cutting device 3 and the main gas container cutting device 3 are connected by a gas passage 5 on the primary side and are integrally connected by a frame 6 and a mounting screw 6 '.

The gas adjusting mechanism 4 is a main gas container cutting device 3
An on-off valve 8 provided with a self-closing tendency on a primary gas passage 7 inside, a pressure adjusting load 9 and a gas outlet 1 for this on-off valve
This is a normal type in which the gas pressure and flow rate are adjusted by a throttle 11 of 0. The main gas container cutting device 3 is provided with a safety device 12 for keeping the pressure adjusting load 9 in a rest state when not in use.

A gas container 13 filled with oxygen gas is attached to the main gas container cutting device 3 and the sub gas container cutting device 1. By this attachment, each gas container 13 is cut by the cutting needle 14, and the primary gas flows out to wait for the opening / closing valve 8 of the main gas container cutting device 3 to open. A hose 15 leading to a mask (not shown) is connected to the gas outlet 10.

When using, the mask is applied to the nose and mouth, and the safety device 12 is removed. Since the pressure adjusting load 9 becomes free, the opening / closing valve 8 is moved by the pressure and the gas passage 7 is opened.
The high-pressure gas on the primary side is depressurized by the pressure adjusting load 9 to become a secondary pressure gas, and this gas passes through the outlet 10 of the main gas container cutting device 3, the flow rate is adjusted by the throttle 11 and the hose 15, and the mask Is consumed by breathing.

Since the safety device 12 is a detachable type, once it is released, it does not operate until the gas in all the gas containers 13 has completely flowed out. When reusing, the safety device 12 may be reset and the gas container 13 may be replaced with a new one.

Each of the auxiliary gas container cutting device 1 and the main gas container cutting device 3 has one end at an end thereof.
Is connected to the outlet 16 on the downstream side of the check valve 2 on the gas passage 5, and the other end is connected to the primary gas passage 7 of the main gas container cutting device 3 by the gas passage 5. . In this way, even if there is an unused auxiliary gas container cutting device 1, the check valve 2 prevents the gas from flowing out therefrom.

The gas passage 5 is a thin metal tube. In this case, the metal pipe is not bent and the gas passage 5 is not blocked even when subjected to vibration or the like, so that the gas supply is ensured.

The safety device 12 penetrates the upper surface of the main gas container cutting device 3 in the axial direction and has a neck groove 17 on the outside, a rod 20 having a receiver 19 for a spring 18 at the inner end, and a neck groove of this rod. The spring 17 has a pinch 21, which itself elastically engages with the spring 18 in an elastic state, and an operation string 22 for pulling out the pinch from the neck groove 17. In this case, the grip 21 can be removed from the neck groove 17 of the rod 20 only by pulling the operation string 22, and the gas supply device can be used with a simple operation.

As shown in FIGS. 5 to 7, the gas supply device according to the present invention connects the main and sub gas container cutting devices 3 and 1 of the above gas supply device with a metal thin tube 5 '. A gas container 13 is attached to each of the cutting devices 3 and 1, and the device is housed in an elastic case 31. At this time, the operation cord 22 of the safety device 12 and the hose 15 connected to the gas outlet 10 are led out to the outside through the through holes 32 and 33 formed in the elastic case 31, respectively.

The elastic case 31 is carried, and when the gas supply is required, the operation cord 22 is pulled to remove the safety device 12. The gas in each gas container 13 is the main gas container cutting device 3
The pressure is reduced by the pressure adjusting load 9 through the primary gas passage 7. Then, the low-pressure gas flows to the gas outlet 10,
The flow rate is controlled by the squeeze 11 and flows into the hose 15, reaches the mask, and is used for breathing.

The main and sub gas container cutting devices 3 and 1 are connected by a thin metal tube 5 ', and the gas container 13 is attached to them and covered with the elastic case 31, so that they can be dropped or hit against a wall or the like. Even if it does, the gas adjustment mechanism is protected from the shock and the original function is fully fulfilled.

The elastic case 31 is made of foamed resin, and has a main body 34 and a lid 35, the main body 34 has a chamber 36 for closely accommodating the gas container 13, and the lid 35 is a vertically divided half mold 37. 38, there are provided recesses 39 and 40 for closely accommodating the gas container cutting devices 1 and 3 and the gas adjusting mechanism 4 on the mating surfaces of these mating molds, and a through hole 33 for the hose 15, and one mating mold. 37 through hole 3 for operation string 22
2 are provided. In this case, the entire gas supply device is tightly accommodated in the elastic case 31, so that the gas supply device does not stop operating even if a considerable shock is applied, and the gas supply device can be stably used. In the drawing, 41 is a gas vent hole.

[0029]

According to the gas supply device of the present invention, since a plurality of cutting devices for small gas containers are integrated, the total gas amount of the gas containers can be used according to the number, and the device does not become large. Since only a single pressure regulator and throttle are required, the structure is simple and inexpensive, the operation is simple, and the total amount of gas can be released if the safety device is released, so gas stop etc. due to malfunction does not occur, etc. There are various characteristics.

According to the second aspect, even if there is an unused auxiliary gas container cutting device, the check valve prevents the gas from flowing out therefrom.

According to the third aspect, the metal pipe is not bent and the gas passage is not closed even when subjected to vibration or the like, so that the gas supply is ensured.

According to the fourth aspect, the grip can be removed from the neck groove of the rod simply by pulling the operation cord, and the gas supply device can be used by a simple operation.

According to the gas supply device of the fifth aspect, the gas supply device is covered by the elastic case, so that it is protected from an external impact, and a plurality of small gas containers are used. Thus, the degree of freedom in shape can be taken, and the case shape can be made upright so that the whole shape is convenient for carrying.

According to the sixth aspect, since the entire gas supply device is tightly accommodated in the elastic case, the gas supply device does not stop operating even if a considerable impact is received, and the gas supply device can be stably used. it can.

[Brief description of drawings]

FIG. 1 is a cut side view showing a specific example of a gas supply device according to the present invention.

FIG. 2 is a plan view.

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a detailed cutaway plan view of a connecting portion of the gas passage (5) of the auxiliary gas container cutting device (1) with respect to the main gas container cutting device (3).

FIG. 5 is a front view of the gas supply device according to the present invention, in which the main body (34) of the elastic case (31) is virtually cut while the gas container (13) is arranged on the same vertical plane, and Mating type (37,38)
It shows a state in which the front side (37) of the lid (35) which has become is removed.

FIG. 6 is a plan view.

7 is a right side view of FIG. 5, showing the elastic case (31) in FIG.
It is cut along the line -7, and the gas supply device is shown without cutting the gas supply device with the gas container (13) attached to each gas container cutting device (1, 3).

[Explanation of symbols]

 1 auxiliary gas container cutting device 2 check valve 3 main gas container cutting device 4 gas adjusting mechanism 5 gas passage 5'metal thin tube 6 frame 7 primary gas passage 8 on-off valve 9 pressure adjusting load 10 gas outlet 11 throttle 12 safety device 13 gas Container 14 Cut Needle 15 Hose 16 Outlet 17 Neck Groove 18 Spring 19 Receptor 20 Rod 21 Clamp 22 Operation String 31 Elastic Case 32 Through Hole 33 Through Hole 34 Main Body 35 Lid 36 Chamber 37 Matching Type 38 Matching Type 39 Recess 40 Concave

Claims (6)

[Claims] 1. A plurality of auxiliary gas container cutting devices (1) equipped with check valves (2) are respectively connected to a main gas container cutting device (3) equipped with a gas adjusting mechanism (4) on the primary side. Further, the gas adjusting mechanism (4) is integrally connected, and the on-off valve (8) is provided with a tendency to self-close on the primary gas passage (7), the pressure adjusting load (9) and the on-off valve (8) for the on-off valve (8). It is a normal type in which the gas pressure and flow rate are adjusted by the throttle (11) of the gas outlet (10), and the main gas container cutting device (3) keeps the pressure adjusting load (9) in a rest state when not in use. A gas supply device, characterized in that a safety device (12) is provided. 2. Each of the auxiliary gas container cutting device (1) and the main gas container cutting device (3) has one end of which the check valve (1) is connected to the auxiliary gas container cutting device (1) on a gas flow path. 2) is connected by a gas passage (5), which communicates with an outlet (16) on the downstream side, and the other end communicates with a primary gas passage (7) of the main gas container cutting device (3) The gas supply device according to claim 1. 3. The gas supply device according to claim 2, wherein the gas passage (5) is a thin metal tube (5 ′). 4. The safety device (12) axially penetrates the upper surface of the main gas container cutting device (3) to have a neck groove (17) on the outside and a spring (18) receiving end on the inner end ( 19) a rod (20), a claw (21) that elastically engages itself with the spring (18) in the neck groove (17) of the rod (20), and this claw (21) the neck groove (17)
The gas supply device according to claim 1, further comprising an operation string (22) for withdrawing the operation string (22). 5. A plurality of auxiliary gas container cutting devices (1) equipped with a check valve (2) and a main gas container cutting device (3) equipped with a gas adjusting mechanism (4) and a metal thin tube (1) on each primary side. 5 ') is connected and integrally connected, and the gas adjusting mechanism (4) is provided with an on-off valve (8) having a tendency to self-close on the primary gas passage (7), and for this on-off valve (8) It is of a normal type in which the gas pressure and flow rate are adjusted by the pressure regulating load (9) and the throttle (11) of the gas outlet (10), and the main gas container cutting device (3) operates the pressure regulating load (9). A safety device (12) is provided for keeping it in a rest state when not in use, and the gas container (1) is attached to each of the main and sub gas container cutting devices (3, 1).
3) is attached and these are the operation strings (22) of the safety device (12).
And an elastic case (31) having through holes (32, 33) for guiding the hose (15) connected to the gas outlet (10) of the main gas container cutting device (3) to the outside. A gas supply device characterized by the above. 6. The elastic case (31) is made of foamed resin and has a main body (34) and a lid (35), and the main body (34) is the gas container.
A chamber (36) for closely accommodating (13) is provided, and the lid (35) is a vertically-divided mating mold (37, 38). (1,3) and gas adjustment mechanism (4)
Recesses (39, 40) for closely accommodating and the through hole for the hose (15)
(33) and the operation string (22) on the one mating die (37)
The gas feeder according to claim 5, further comprising a through hole (32) for use therein.