JP3689484B2 - Gas supply device and gas supply device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gas supply device and a gas supply device, and more particularly to a type capable of supplying oxygen for respiration over a relatively long time while using a small gas container.
[0002]
[Prior art]
At present, the tank of the respiratory ventilator for disaster prevention is small, but the internal volume is as large as 10 l.
[0003]
[Problems to be solved by the invention]
If it is large, it takes time other than the escape operation such as the opening / closing valve of the tank and holding (holding or holding) the tank, and the escape time is missed. In addition, when it is dropped or knocked down in a hurry, the pressure adjustment unit may break and become unusable. In addition, it is expensive.
[0004]
[Means for Solving the Problems]
In the gas supply device according to the present invention, a plurality of auxiliary gas container cutting devices each provided with a check valve are respectively connected to and integrally connected with a main gas container cutting device provided with a gas adjustment mechanism on the primary side. . The gas adjusting mechanism is of an ordinary type that adjusts the gas pressure and flow rate by an on-off valve provided with a self-closing tendency on the primary gas passage, a pressure adjusting load on the on-off valve, and a throttle at the gas outlet. The main gas container cutting device is provided with a safety device that keeps the pressure adjusting load in a dormant state when not in use.
The safety device includes a rod that penetrates the upper surface of the main gas container cutting device in the axial direction and has a neck groove on the outside and a spring receiver on the inner end, and the spring is repelled in the neck groove of the rod It has a squeeze that is elastically engaged with itself and an operating string for pulling out this squeeze from the neck groove.
[0005]
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 the outlet on the downstream side of the check valve, and the other end of the auxiliary gas container cutting device. It may be connected by a gas passage communicating with the primary gas passage of the main gas container cutting device.
[0006]
The gas passage is a metal thin tube.
[0007]
The gas supply device according to the present invention is the above gas supply device, wherein the sub gas container cutting device is connected to the main gas container cutting device by a metal thin tube, and the main and sub gas container cutting devices are connected to the gas container. These are covered with an elastic case having a through hole for guiding the hose connected to the operating string of the safety device and the gas outlet of the main gas container cutting device to the outside.
[0008]
The elastic case is made of a foamed resin, and includes a main body and a lid, the main body includes a chamber that closely accommodates the gas container, and the lid is a vertically-divided mating die, and the mating surface of the mating die The gas container cutting device and the gas adjusting mechanism may be provided on the concave portion and the through hole for the hose, and the one coupling die may be provided with the through hole for the operation string.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
In the gas supply apparatus according to the present invention, a small gas container containing oxygen gas is attached to each of the main and sub gas container cutting apparatuses and the gas supply apparatus is opened.
[0010]
Remove the safety device if oxygen concentration is low or needs to be replenished due to fire in a tunnel or carbon dioxide in a computer room. As a result, the gas adjustment mechanism is activated 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 sub gas container cutting devices is removed from the main gas container cutting device. When the flow rate is adjusted by the throttle at the outlet, it flows out to the outside, and if it is guided to the mask, all the amount of gas is breathed.
[0011]
If the number of auxiliary gas container cutting devices is increased, the number of gas containers that can be used increases accordingly, and breathing for a long time becomes possible.
[0012]
The safety device includes a rod that penetrates the upper surface of the main gas container cutting device in the axial direction and has a neck groove on the outside and a spring receiver on the inner end, and the spring is repelled in the neck groove of the rod If you have a sledge that elastically engages itself and an operation string for pulling this squeeze out of the neck groove, you can easily remove the itch from the neck groove of the rod by simply pulling the operation string. The gas supply device can be used in operation.
[0013]
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 the outlet on the downstream side of the check valve , and the other end of the auxiliary gas container cutting device. If the gas passage is connected to the primary gas passage of the main gas container cutting device and connected to the primary gas passage, the gas does not flow out from the check valve even if there is an unused auxiliary gas container cutting device.
[0014]
If the gas passage is a metal thin tube, even if it receives vibration or the like, the metal tube will not bend and the gas passage will not be blocked, so that the gas supply will be reliable.
[0015]
According to the gas supply device of the present invention of claim 4 , the sub gas container cutting device is connected to the main gas container cutting device by a metal thin tube, and a gas container 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 in the attached state, oxygen can be supplied immediately by carrying the case and pulling the operating string when necessary to remove the itch from the neck groove of the rod. Yes, because there is a case, even if dropped, the gas adjustment mechanism will not be disturbed.
[0016]
The elastic case is made of foamed resin, includes a main body and a lid, the main body includes a chamber that closely accommodates the gas container, and the lid is a vertically-divided mating die, and the mating surface of the mating die If the gas container cutting device and the gas adjusting mechanism are closely accommodated with a recess and a through hole for the hose, and the through hole for the operation string is provided in the one mating mold, Since the entire supply device is closely accommodated in the elastic case, the gas supply device does not become inoperable even when subjected to a considerable impact and can be used stably.
[0017]
【Example】
1 is a sub gas container cutting device, and is equipped with the non-return valve 2, respectively. Reference numeral 3 denotes a main gas container cutting device provided with a gas adjusting mechanism 4. The auxiliary gas container cutting device 1 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 '.
[0018]
The gas adjusting mechanism 4 has a gas pressure and a flow rate by an on-off valve 8 given a self-closing tendency on the primary gas passage 7 in the main gas container cutting device 3, a pressure adjusting load 9 for the on-off valve and a throttle 11 of the gas outlet 10. It is of the normal type that adjusts. The main gas container cutting device 3 is provided with a safety device 12 that keeps the pressure adjusting load 9 in a dormant state when not in use.
[0019]
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. With this attachment, each gas container 13 is cut by the cutting needle 14, and the primary gas flows out to wait for the opening of the on-off valve 8 of the main gas container cutting device 3. A hose 15 leading to a mask (not shown) is connected to the gas outlet 10.
[0020]
When using, apply the mask to the nose and mouth and remove the safety device 12. 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. 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 passes through the mask. It is consumed by breathing.
[0021]
Since the safety device 12 is a detachable type, once released, the safety device 12 does not operate until all the gas in the gas container 13 has flowed out. In the case of reuse, the safety device 12 may be reset and the gas container 13 may be replaced with a new one.
[0022]
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 of a spring 18 at the inner end, and a spring in the neck groove 17 of this rod. In the state where the ball 18 is bounced, it has a knurling 21 that is also elastically engaged, and an operation string 22 for pulling out this knurling from the neck groove 17 . In this way, it is possible to remove the itch 21 from the neck groove 17 of the rod 20 simply by pulling the operation cord 22, and to use the gas supply device with a simple operation.
[0023]
Each of the auxiliary gas container cutting device 1 and the main gas container cutting device 3 has one end communicating with the auxiliary gas container cutting device 1 on the gas flow path 5 to the outlet 16 on the downstream side of the check valve 2. The end is connected by a gas passage 5 communicating with the primary gas passage 7 of the main gas container cutting device 3. In this way, even if there is an unused auxiliary gas container cutting device 1, the check valve 2 prevents gas from flowing out from there.
[0024]
The gas passage 5 is a metal thin tube. In this way, even if the vibration is received, the metal pipe is not bent and the gas passage 5 is not blocked, so that the gas supply is ensured.
[0025]
As shown in FIGS. 5 to 7, the gas supply device according to the present invention connects the main and auxiliary gas container cutting devices 3 and 1 of the above gas supply device with a metal thin tube 5 ', and each cutting device. A gas container 13 is attached to 3 and 1, and this apparatus is accommodated in an elastic case 31. At this time, the operating string 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 opened in the elastic case 31, respectively.
[0026]
The elastic case 31 is carried, and when the gas supply becomes necessary, the operating cord 22 is pulled to remove the safety device 12. The gas in each gas container 13 is decompressed by the pressure adjusting load 9 through the primary gas passage 7 of the main gas container cutting device 3. The gas having a low pressure flows to the gas outlet 10, the flow rate is controlled by the throttle 11 and flows to the hose 15, reaches the mask, and is used for breathing.
[0027]
The main and sub gas container cutting devices 3 and 1 are connected by a metal thin tube 5 ', and the gas container 13 is attached to them and covered with an elastic case 31, so that they are dropped or hit against a wall or the like. However, the gas adjustment mechanism is protected from impact and performs its original function completely.
[0028]
The elastic case 31 is made of foamed resin, and includes a main body 34 and a lid 35, the main body 34 includes a chamber 36 that closely accommodates the gas container 13, and the lid 35 is a pair of dies 37 and 38 that are vertically divided. On the mating surfaces of these mating dies, there are provided concave portions 39 and 40 for closely accommodating the gas container cutting devices 1 and 3 and the gas adjusting mechanism 4 and a through hole 33 for the hose 15, and one mating die 37 is operated. A through hole 32 for the string 22 is provided. In this way, since the entire gas supply device is closely accommodated in the elastic case 31, the gas supply device does not become inoperable even when subjected to a considerable impact and can be used stably.
In the drawing, reference numeral 41 denotes a vent hole.
[0029]
【The invention's effect】
According to the gas supply device of the present invention, since a plurality of small gas container cutting devices are integrated, the total number of gas containers in the number corresponding to that can be used, the device does not become large, and a single pressure adjustment structure not applied easily and cost because requires only device and a diaphragm, the operation is also simple and disengaging the safety device can emit total amount of gas, thus the gas stops or the like does not occur due to a malfunction, the safety device control cord There are various features such that it is possible to remove the itch from the neck groove of the rod by simply pulling the rod, and the gas supply device can be used with a simple operation .
[0030]
According to the second aspect, even if there is an unused auxiliary gas container cutting device, the gas does not flow out from the check valve.
[0031]
According to the third aspect of the present invention, since the metal tube does not bend and the gas passage is not blocked even when subjected to vibration or the like, gas supply is ensured.
[0032]
According to the gas supply device of claim 4 , since the gas supply device is covered with the elastic case, it is protected against an impact from the outside, and since a plurality of small gas containers are used, the shape is larger than that of the large container. The overall shape convenient for carrying can be obtained by designing the case shape upright.
[0033]
According to the fifth aspect , since the entire gas supply apparatus is closely accommodated in the elastic case, the gas supply apparatus does not become inoperable even when subjected to a considerable impact and can be used stably.
[Brief description of the 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 cut-away plan view of the connecting portion of the gas passage (5) of the sub 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, wherein the main body (34) of the elastic case (31) is virtually cut in a state where the gas container (13) is disposed on the same vertical plane; The state where the near side (37) of the lid (35) which is the mating die (37, 38) is removed is shown.
FIG. 6 is a plan view.
7 is a right side view of FIG. 5, in which the elastic case (31) is cut along the line 7-7 in FIG. 5, and the gas supply device is not cut into each gas container cutting device (1, 3). It is shown with the gas container (13) attached.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Subgas container cut device 2 Check valve 3 Main gas container cut device 4 Gas adjustment mechanism 5 Gas passage 5 'Metal thin tube 6 Frame 7 Primary gas passage 8 Opening and closing valve 9 Pressure regulating load 10 Gas outlet 11 Restriction 12 Safety device 13 Gas Container 14 Cut needle 15 Hose 16 Outlet 17 Neck groove 18 Spring 19 Receiver 20 Rod 21 Sag 22 Operation string 31 Elastic case 32 Through hole 33 Through hole 34 Main body 35 Lid 36 Chamber 37 Matching mold 38 Matching mold 39 Recess 40 Recess

Claims (5)

Multiple auxiliary gas container cutting devices (1) with check valves (2) are connected to the main gas container cutting device (3) with gas adjustment mechanism (4) on the primary side and connected together And
The gas adjusting mechanism (4) includes an on-off valve (8) provided with a self-closing tendency on the primary gas passage (7), a pressure adjusting load (9) for the on-off valve (8), and a throttle of the gas outlet (10). (11) is a normal type that adjusts gas pressure and flow rate,
Main gas container cutting device (3) is safety device (12) is provided to keep the dormant when not in use the該調pressure load (9), the safety device (12) is the main gas container cutting device ( a rod (20) with a receiving of the upper surface 3) through the axial spring to have the end of 頸溝 (17) to the outside (18) (19), 頸溝of the rod (20) ( while emitted bullet the spring (18) to 17) itself resiliently engaging to assistor (21) and, the sandwiched (control cord for pulling 21) from 該頸groove (17) (22) The gas supply apparatus characterized by having .   Each of the auxiliary gas container cutting device (1) and the main gas container cutting device (3) has one end downstream of the check valve (2) on the gas flow path to the auxiliary gas container cutting device (1). 2. A gas passage (5) connected to the outlet (16) of the main gas container and having the other end connected to a primary gas passage (7) of the main gas container cutting device (3). Gas supply device.   The gas supply device according to claim 2, wherein the gas passage (5) is a metal thin tube (5 '). A plurality of secondary gas container cutting devices (1) equipped with check valves (2) and a main gas container cutting device (3) equipped with a gas adjustment mechanism (4) are each led by a metal thin tube (5 ') on the primary side. Connected and connected together,
The gas adjusting mechanism (4) includes an on-off valve (8) provided with a self-closing tendency on the primary gas passage (7), a pressure adjusting load (9) for the on-off valve (8), and a throttle of the gas outlet (10). (11) is a normal type that adjusts gas pressure and flow rate,
The main gas container cutting device (3) is provided with a safety device (12) for keeping the pressure regulating load (9) in a dormant state when not in use,
A gas container (13) is attached to each of the main and sub gas container cutting devices (3, 1), and these are the operation string (22) of the safety device (12) and the main gas container cutting device (3). A gas supply device comprising an elastic case (31) provided with through holes (32, 33) for guiding a hose (15) connected to a gas outlet (10) outward. The elastic case (31) is made of a foamed resin, and includes a main body (34) and a lid (35) .The main body (34) includes a chamber (36) that closely accommodates the gas container (13), and The lid (35) is a vertically-divided mating die (37, 38), and the gas container cutting device (1, 3) and the gas adjusting mechanism (4) are closely accommodated on the mating surface of the mating die. A recess (39, 40) and a through hole (33) for the hose (15), and the one mating die (37) is provided with a through hole (32) for the operating string (22). The gas supply device according to claim 4 .

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