KR101870114B1 - Compressed-oxygen breathing apparatus - Google Patents

Compressed-oxygen breathing apparatus Download PDF

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Publication number
KR101870114B1
KR101870114B1 KR1020180025495A KR20180025495A KR101870114B1 KR 101870114 B1 KR101870114 B1 KR 101870114B1 KR 1020180025495 A KR1020180025495 A KR 1020180025495A KR 20180025495 A KR20180025495 A KR 20180025495A KR 101870114 B1 KR101870114 B1 KR 101870114B1
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KR
South Korea
Prior art keywords
oxygen
user
valve
unit
pressure
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KR1020180025495A
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Korean (ko)
Inventor
박대수
이장섭
이석희
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박대수
이장섭
이석희
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Application filed by 박대수, 이장섭, 이석희 filed Critical 박대수
Priority to KR1020180025495A priority Critical patent/KR101870114B1/en
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Publication of KR101870114B1 publication Critical patent/KR101870114B1/en

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/10—Valves
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/02—Respiratory apparatus with compressed oxygen or air
    • A62B7/04—Respiratory apparatus with compressed oxygen or air and lung-controlled oxygen or air valves

Abstract

The present invention relates to a portable oxygen breathing device comprising a wearing unit, a flow path unit, an airbag unit, and an oxygen supplying unit. The wearing unit includes a do-rag unit and a shoulder unit and is worn by a user. The do-rag unit is worn by the user to protect a head of the user. The shoulder unit is downwardly extended from the do-rag unit and covers a shoulder of the user. The flow path unit forms a flow path for exhalation and inhalation of the user in a state of blocking a nose and a mouth of the user who wears the wearing unit from external contaminated air; and is fitted and combined through a penetration hole formed on a front surface of the do-rag unit. The airbag unit is combined with the flow path unit and stores and supplies oxygen for oxygen breathing of the user in a state of blocking external air. The oxygen supplying unit is combined with the airbag unit and supplies a constant amount of oxygen to the airbag unit by opening a discharge unit when the user operates the portable oxygen breathing device. The portable oxygen breathing device includes a depressurization device which depressurizes and discharges pressure of the oxygen discharged from a high pressure oxygen container to an atmospheric pressure level. Since first and second depressurizations are performed, discharge resistance due to rapid pressure change is not generated in discharging the oxygen such that the present invention easily discharges the oxygen to an airbag. Since a discharge amount of the oxygen discharged from the high pressure oxygen container can be randomly adjusted depending on a breathing condition of the user, the present invention can be used depending on a real breathing amount of the user. The present invention can supply enough oxygen during a time for escape of the user in an emergency.

Description

[0002] Compressed-oxygen breathing apparatus [0003]

The present invention relates to a portable oxygen respirator, and more particularly, to a portable oxygen respirator, and more particularly, to a portable oxygen respirator that can be used for evacuation of a hazardous substance such as a toxic chemical, To a portable oxygen respirator that can maintain oxygen breathing for a sufficient time to allow oxygen breathing during use and easy to carry and handle so that it is easy to use in an emergency situation and can escape to a safe place in the event of an emergency .

Generally, the oxygen respirators that are provided in advance for use in escape from a building or a ship in an emergency such as a fire in a building or a ship sank include a method of filtering the harmful gas in the air and a method of supplying oxygen or air to the user As shown in Fig.

That is, the method of filtering harmful gas has a merit that it is possible to produce low cost, but there is a fatal disadvantage that it can not be used in a situation where oxygen is insufficient due to fire or the like or in water, and a method of directly or indirectly supplying oxygen or air Large-sized oxygen supply devices used by firefighters and scuba divers have been developed and used for a long time. However, these large-sized products are not only inconvenient to carry and store because they are bulky than necessary for personal use and are expensive, As shown in Fig.

In addition, portable miniature oxygen cans have been developed to provide users with direct oxygen supply during emergency escape. However, because emergency escape breathing apparatus using portable oxygen cans are intended for low pressure oxygen, There is a problem in increasing the survival rate because the use time can not be overcome.

Therefore, in order to solve such a problem, the patent registration No. 1743271, "Emergency escape respirator", proposes an oxygen respirator that can simplify the overall configuration and reduce the manufacturing cost, and can be worn quickly and easily in emergency escape.

However, this technique has several problems as follows.

First, the above-described technique is to fill the oxygen container with oxygen, and then to prevent oxygen from being discharged at any time, a metal plate such as copper is installed on the oxygen container outlet side to seal the oxygen container. When the operation knob is rotated, the ignition tube provided inside hits the metal plate and oxygen is discharged.

However, since the operating wire is made of a metal material, it is necessary to pull the operating wire being wound to rotate the operating knob. In fact, the operating wire is not loosened so that the operating knob can not be rotated, There is a problem that it is impossible to hit the metal plate or operation is extremely difficult.

Second, the above-described technology has a structure in which a sinking pipe sinks a metal plate and supplies high-pressure oxygen to the airbag, thereby allowing the user to suck oxygen. At the moment when the metal plate is sunk, high-pressure oxygen The entire amount is supplied to the airbag in a state in which no decompression is performed at all.

However, since the oxygen to be filled in the oxygen container is oxygen in the liquid state, when the oxygen is discharged, the liquefied oxygen is vaporized and discharged. When the liquid oxygen is vaporized by the gaseous oxygen, the volume increases by about 1,800 times. There is a problem in that the discharge resistance is generated at the discharge port side and oxygen is not easily injected into the airbag.

Third, the above-described technology is a structure that is attached to the side of the hood with the oxygen container on the filter unit. Since the hood is made of a soft material such as TPU (thermoplastic polyurethane) fabric, the weight of the filter unit and the oxygen container So that there is a problem that the user is inconvenienced in wearing when worn.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above problems, and it is an object of the present invention to provide a decompression device capable of decompressing the pressure of oxygen discharged from a high- We would like to provide one portable oxygen respirator.

Another object of the present invention is to provide a portable oxygen analyzer capable of arbitrarily adjusting the discharge amount of oxygen discharged from a high-pressure oxygen container according to a user's breathing condition and capable of opening and closing the discharge passage by operating a flow rate adjusting screw.

Another purpose is that the user can wear quickly and easily in an emergency situation because the oxygen supply and breathing can be done simply by adjusting the flow adjusting screw while the user wears only a light weight hood, ≪ / RTI >

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

In order to accomplish the above object, the present invention provides a hood according to the present invention, which is provided with a hood part that can be overturned to protect the user's head, and a shoulder part that extends downward from the hood part to cover the user's shoulder, ; A channel portion formed on the front surface of the hood portion so as to allow the user to exhale and inspire in a state in which the nose and mouth of the user wearing the wearing portion are shielded from the external contaminated air, An airbag unit coupled to the flow path unit and configured to store and supply oxygen so that the user can breathe oxygen in a state in which the user is blocked from the outside air; And a portable oxygen respirator communicatively coupled to the airbag portion and configured to include an oxygen supply portion for supplying a predetermined amount of oxygen to the airbag portion side when the user operates the discharge port.

Preferably, the wearer is integrally formed with the airbag portion on the inner side of the front surface of the shoulder portion, and a relief valve for forcibly discharging the air to the outside when the internal pressure is higher than a predetermined pressure is provided on one surface of the airbag portion, And a connection pipe for connecting the connection pipe to the connection pipe.

Preferably, the channel portion is located inside a pair of through-holes formed in the front surface of the hood portion and includes a mask for allowing the user to breathe oxygen while the mouth and nose of the user are blocked from the external polluted air, A breathing body having a structure in which the movable breathing flow path and the breathing flow path are separated and formed in the body, and a connection path in which a separate flow path corresponding to the infusion flow path and the inspiration flow path is formed, . ≪ / RTI >

More preferably, the flow path portion is provided with a suction portion, which is located on the side of the flow path of the respiratory body in which the user's breath flows, adsorbing carbon dioxide contained in the user's breath, and then having a carbon dioxide adsorbent circulating to the air bag portion side .

More preferably, the wearer has a transparent face window on the front face of the hood so that the wearer can secure a good visibility when worn, and a hair band for allowing the mask to be strongly adhered to the face when the wearer wears Can be combined.

Preferably, the wearer is further provided with a neck band which is located inside the portion where the hood portion and the shoulder portion are connected to each other, and which prevents external contaminated air from flowing into the hood portion.

Preferably, the oxygen supply unit includes: a high-pressure oxygen container having an internal space in which liquid oxygen is injected into the injection port and then stored; a container valve screwed into the injection port, A valve cap screwed to the container valve and having a thickness enough to prevent external leakage of injected oxygen and to be punched when an external impact is applied; A regulator for reducing the pressure of the air under low pressure to supply oxygen to the airbag part, and a connection pipe for connecting the regulator part and the airbag part to communicate with each other.

Preferably, the regulator portion includes a main body valve body having a through hole formed therein, a gauge coupling hole and a safety valve coupling hole formed on a lower side thereof, and a discharge valve coupling hole through which oxygen is discharged from the upper side face; A main body valve body disposed in a lower portion of the main body and configured to filter foreign substances in the oxygen from the high pressure oxygen container and to reduce a discharge pressure of oxygen, A pressure-reducing resistor made of a porous metal material in which oxygen under a high pressure state is subjected to primary resistance depressurization with oxygen in a low pressure state; And a valve body that is inserted into the lower body of the main body valve body after the pressure reducing resistance body is inserted and is screwed to the cap valve and penetrates the inside of the main body valve body so that oxygen can be discharged from the high- ; A pressure gauge screwed to the gauge coupling hole and indicating an oxygen filling pressure at a high pressure state; A safety valve having a structure in which the safety valve is screwed to the safety valve engagement hole and oxygen can be forcedly discharged when the oxygen pressure in the high-pressure oxygen container rises above a certain pressure; A discharge valve screwed to the discharge valve coupling hole and discharging low-pressure oxygen to the airbag communicating through the coupling pipe; A discharge valve nut screwed to the discharge valve and provided so that the connection pipe can be fixedly engaged; A shaft valve rotatably coupled to the inside of the main body valve body and opening / closing an oxygen outflow hole formed in the main body valve body to control the flow of oxygen; A sub knob screwed on an upper portion of the main body valve body and controlling a movement distance of the shaft valve to move up and down when the shaft valve rotates to adjust an amount of oxygen discharged from the high pressure oxygen container; And a flow control valve fixedly coupled to the upper end of the shaft valve and capable of adjusting an amount of discharge of oxygen by adjusting the rotation of the user.

More preferably, the shaft valve has a tapered shape with one end at an angle of 10 to 20 degrees with respect to the longitudinal axis, and a screw groove having a predetermined length in the circumferential direction is formed, so that the primary reduced oxygen And may have a structure of being subjected to a secondary pressure reduction by a change in frictional resistance and cross sectional area while passing through the thread groove.

The present invention as described above has the following effects.

First, there is provided a decompression device capable of depressurizing the pressure of oxygen discharged from the high-pressure oxygen container to the atmospheric pressure level to perform primary and secondary decompression, so that discharge resistance due to a sudden pressure change during discharge does not occur, Can be easily discharged.

Second, since the amount of oxygen discharged from the high-pressure oxygen container can be arbitrarily adjusted according to the user's breathing conditions, it can be used in accordance with the actual breathing amount of the user and sufficient oxygen amount can be supplied during the time when the user can escape in an emergency.

Third, since the user can open and close the oxygen outlet only by adjusting the flow rate adjusting screw in the state of wearing only a light weight hood, it can be operated easily, and can be used quickly in case of emergency.

Fourth, since the overall volume is small, easy to store, and easy to handle and use, maintenance and maintenance costs can be reduced in a narrow space such as a ship, and the user's satisfaction can be increased.

Brief Description of the Drawings Fig. 1 is a view showing the state of use of a portable oxygen respirator according to a preferred embodiment of the present invention; Fig.
FIG. 2 is an assembled state of a channel portion according to a preferred embodiment of the present invention; FIG.
3 is a side view of the respiratory body, the connecting portion, and the suction portion according to the preferred embodiment of the present invention;
FIG. 4 is an assembled state view of a respiratory organ according to a preferred embodiment of the present invention; FIG.
5 is an assembled state of an oxygen supply unit according to a preferred embodiment of the present invention; And
6 is an exploded view of an oxygen supply unit according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to include an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

The portable oxygen ventilator 100 according to the preferred embodiment of the present invention is designed to be capable of moving safely from a fire-generating building or a vessel where a fire escapes to a safe place, A channel portion 300, an airbag portion 400, and an oxygen supply portion 500 so as to enable the user to operate the airbag module 200. [

(200)

The hood unit 200 includes a hood unit 210 and a shoulder unit 220 so that the user can quickly wear the hood unit when an emergency occurs. The hood unit 210 is configured to cover the entire head of the user And protects the user's head in the event of a fire.

In addition, the front surface of the hood unit 210 may be provided with a transparent front window 211 on the front thereof so that a front view can be secured when the user wears it. In the case where the hood unit 210 is made of a transparent material, it is not necessary to provide a separate transparent window for securing the view. However, in order to select a wide range of materials of the hood unit 210, a transparent face window 211 is separately provided .

The shoulder portion 220 may extend downward from the hood portion 210 and may be provided in a skirt shape so as to cover the user's shoulders.

The hood part 210 and the shoulder part 220 are formed of a polyurethane material which is resistant to flames at the time of a fire and does not have a flame and is made of a special material having heat resistance, flame resistance and waterproof property Or surface-treated.

Here, the hood unit 210 covering the user's head and the shoulder unit 220 covering the user's shoulder are shown to be made of the same material, but the present invention is not limited thereto and may be made of different materials.

On the other hand, after the user hits the hood unit 210 on the outside of the hood unit 210, the mask 310, which will be described later, can be tightly attached to the face such that the user's nose and mouth It is preferable to have a hair band 212 which is provided with a hair band. The user can pull the elastic hair band 212 by hand so that the mask 310 can be brought into close contact with the face so that external contaminated air that can flow into the hood unit 210 is supplied to the mask 310). The hair band 212 is preferably made of a resilient rubber material so that the user can adjust the length of the hood after wearing the hood 210.

In order to prevent external contaminated air from flowing into the hood 210 and obstructing the user's view, a flexible neckband (not shown) is provided on the inside of the portion where the hood portion 210 and the shoulder portion 220 are connected. It is preferable to further include a time. Accordingly, it is possible to prevent the first inflow of the polluted air through the neckband (not shown) and prevent the second inflow of the polluted air that may be introduced into the mask 310 through the hair band 212 described above .

- a channel unit (300)

The flow path unit 300 includes a mask 310 and a respiratory body 320 and a connection unit 330. The flow path unit 300 forms a flow path through which the user can breathe with oxygen supplied from the high pressure oxygen container 520.

The mask 310 is coupled to the inside of the front surface of the hood unit 210 and blocks the user's nose and mouth from external polluted air to enable oxygen breathing and exhalation and inspiration of the user.

The passages through which the user inhales and exhales are separated from each other without interfering with each other. Oxygen from the airbag section 400 flows in through the inhale and exits back to the airbag section 400 through exhalation. At the time of user's emptying, carbon dioxide is partially adsorbed by the carbon dioxide adsorbent 320a, the concentration of carbon dioxide is reduced from the exhalation and fed back to the airbag unit 400, and the fed back airspeed is supplied from the oxygen supply unit 500 to the airbag unit 400 It is possible to reuse the oxygen again with the user.

The mask 310 is a portion that substantially blocks the user's mouth and nose from external contaminated air, and the respiration of the user is performed within the mask 310. The mask 310 is located inside the hood 210 and is coupled to the respiratory body 320 outside the hood 210. The material of the mask 310 is harmless to the human body, It is preferable to use the same soft material.

The respiratory body 320 communicates with the mask 310 so that oxygen supplied from the airbag section 400 flows into the inspiratory flow path 331 and the user's exhalation is discharged toward the expiratory flow path 332 And an adsorption unit 321 having a carbon dioxide adsorbent 320a for adsorbing carbon dioxide in the exhalation. The carbon dioxide adsorbent 320a is provided in the adsorption unit 321 and is preferably disposed in the adsorption unit 321 in a separate bag such as a nonwoven fabric serving as a filter.

Further, on both sides of the respiratory body 320, it is further preferable that a band fastening portion 322 capable of fixing the above-described hair band 212 is formed.

One side of the connection part 330 is connected to the breathing body 320 to form an inspiration flow path 331 and an emptying flow path 332 and the other side is connected to the airbag part 400, 331 to supply oxygen to the user and to exhale again to the airbag section 400 through the vent valve 332. Particularly, the exhalation flow path 331 and the exhalation flow path 332 formed inside the connection part 330 are separated from each other to form a separate flow path.

On the other hand, when the inspiratory flow path 331 of the respiratory body 320 is inhaled, the passageway is opened to allow oxygen to flow from the airbag part 400, and when the inspiratory flow path 320 is exhaled, the exhalation is discharged through the inspiration flow path 331 It is preferable to further include a check valve 331a made of a silicon material. The adsorbent 321 of the respiratory body 320 is provided with a carbon dioxide adsorbent 320a to adsorb and remove a part of the carbon dioxide contained in the exhalation so as to be fed back to the airbag unit 400 to reuse the exhalation, Allows more time to use the respirator.

The mouth portion and the nose of the user can be breathed in the mask 310 while being blocked from the external polluted air and the respiratory body 320 and the connecting portion 330 The oxygen supplied from the airbag section 400 is blown through the inflow channel 331 formed in communication with the inside of the inflow channel 331 and the user's exhalation is discharged through the inflation channel 332, And then fed back to the airbag unit 400 and mixed with oxygen supplied from the oxygen supply unit 500 in the airbag unit 400 to reuse the exhalation.

- the airbag portion (400)

The airbag part 400 is connected to the connection part 330 of the flow path part 300 so as to be connected to the oxygen supply part 500 to be described later.

It is preferable that the airbag part 400 is directly connected to the connection part 330 side and is connected to the oxygen supply part 500 side through a connection pipe 510. As shown in Figure 1, 510 are fixedly coupled to the airbag portion 400 through the coupling pipe coupling member 410. [ It is preferable that the airbag part 400 is made of a polyurethane material similar to the wearing part 200.

The airbag part 400 may be formed separately from the above-described wearing part 200, but may be integrally formed with the shoulder part 220 on the inside of the front surface of the shoulder part 220.

In order to prevent the air bag unit 400 from being damaged by the oxygen continuously supplied from the oxygen supply unit 500 and the pressure expansion due to the user's exhalation, when the internal pressure of the air bag unit 400 becomes a predetermined pressure or more, And a relief valve 221 for automatically discharging air to the outside.

- oxygen supply unit (500)

The oxygen supply unit 500 is connected to the air bag unit 400 through a connection pipe 510 to supply oxygen into the air bag unit 400 at a predetermined pressure and capacity. A container valve 522 having a high pressure oxygen container 520 and a passage through which oxygen is discharged and screwed to the injection port 521 side of the high pressure oxygen container 520; A capping valve 530 having a thickness equal to that of the capping layer 530 and a sealant 532 for supporting the capping layer 531 can be formed to prevent external leakage of the injected oxygen, A regulator portion 540 for reducing the pressure of oxygen in the high pressure state from the high pressure oxygen container 520 to oxygen in the low pressure state to supply oxygen to the airbag portion 400 and a regulator portion 540 for regulating the pressure of the regulator portion 540 and the airbag portion 400 are connected to each other.

The high-pressure oxygen container 520 is designed to withstand an internal pressure of about 500 bar and is preferably made of aluminum. Since the boiling point of liquid oxygen is -183 ° C, liquid oxygen is vaporized at room temperature, and oxygen in the liquid state and gaseous state coexist in the high-pressure oxygen container 520. The pressure inside the high-pressure oxygen container 520 increases due to the gaseous oxygen. When the pressure in the high-pressure oxygen container 520 passes through the regulator part 540, the high-pressure pressure is reduced and discharged to the airbag part 400 side at the atmospheric pressure level.

Liquid oxygen is injected into an injection port 521 of the high-pressure oxygen container 520 through a separate liquid oxygen injection device (not shown), and a container valve 521 through which an oxygen- 522 are screwed together. The cap valve 530 is screwed to the container valve 522 to seal the injected liquid oxygen. The inside of the cap valve 530 is provided with a copper film 531 having a thickness capable of being punctured when an external impact is applied . The thickness of the copper film 531 is preferably about 1 to 2 mm. It is further preferable that the copper film 531 is provided with a sealing material 532 having appropriate elasticity so as to be supported inside the cap valve 530. [

Oxygen in the high-pressure oxygen container 520 is sealed due to the copper film 531 and the pin valve 543 of the regulator part 540 when the regulator part 540 to be described later is screwed to the cap valve 530 ) Penetrate the copper film 531.

The regulator unit 540 regulates the liquid oxygen discharge pressure in the high-pressure oxygen container 520 and allows the user to adjust the amount of oxygen discharged by the user. The regulator unit 540 includes a main body valve body 541, a pressure reducing resistor 542, A valve 543, a pressure gauge 540a, a safety valve 544, a discharge valve 545, a discharge valve nut 546, a shaft valve 547, a sub knob 548, and a flow control valve 549 .

The main body valve body 541 penetrates the inside thereof, and the inside of the main body valve body 541 is formed with a saccharide, so that the pin valve 543 is engaged. And a pressure gauge 540a indicating the oxygen filling pressure in the high-pressure oxygen container 520 is screwed to the lower side surface. The pressure gauge 540a indicates the oxygen pressure inside the high-pressure oxygen container 520. The filling pressure is displayed up to 50 MPa, but the oxygen filling operating pressure in the high-pressure oxygen container 520 is preferably 20 to 25 MPa. In addition, it is preferable that a sealing member 540b is additionally formed upon coupling to the gauge coupling hole 541a. A safety valve engagement hole 541b is formed on the opposite side of the gauge engagement hole 541a so that the safety valve 544 is screwed.

The safety valve 544 prevents oxygen from being forced out when the internal pressure of the high-pressure oxygen container 520 rises above a predetermined pressure in response to an external temperature or a pressure rise, thereby preventing damage to the high-pressure oxygen container 520 due to excess pressure . It is preferable that the safety valve 544 is capable of forcibly discharging oxygen for safety when the internal pressure is normally 40 MPa or more. The upper end of the safety valve 544 is preferably provided with a copper film 544a having a thickness that can be broken when the internal pressure becomes excess pressure and a sealing material 544b is further formed when the safety valve 544 is coupled to the safety valve engagement hole 541b .

A discharge valve coupling hole 541c is formed in the upper side of the valve body 541, and a discharge valve 545 is screwed into the airbag section 400 to discharge oxygen. The discharge valve nut 544 is preferably screwed to the discharge valve 545 so that the connection pipe 510 will not be released after the connection pipe 510 is inserted.

The pressure-reducing resistor 542 is provided with a space through which oxygen can move by forming microvoids therein. As the microvoids pass through, the foreign substance that may be present in the high-pressure oxygen vessel 520 is filtered, The pressure is firstly reduced by the frictional resistance when passing through the microvoids.

The decompression resistor 542 is inserted into the lower end of the main body valve body 541. After the decompression resistor 542 is coupled, the pin valve 543 is screwed. The pin valve 543 penetrates the copper film 531 in the cap valve 530 when the main body valve body 541 is screwed onto the cap valve 530 so that oxygen in the high pressure oxygen container 520 is supplied to the regulator part 540 At this time, since the pin valve 543 forms an oxygen flow path through the inside thereof, the oxygen in the high pressure state moves into the inside of the pin valve 543. On the other hand, the pressure-sensitive resistor 542 is made of a material that can withstand high pressure and low temperature conditions, and is preferably made of metal.

Also, it is preferable that a resistor seat groove 543a is formed at the upper end of the pin valve 530 to accommodate the reduced-pressure resistor 542.

The shaft valve 547 is rotatably coupled to the inside of the main body valve body 541 to open and close an oxygen outflow hole 541d formed in the main body valve body 541 to control the flow of oxygen The oxygen pressure is maintained at a high pressure state to the lower end of the shaft valve 547. When the user rotates the flow control valve 549 to discharge the oxygen, the shaft valve 547 And is discharged to the discharge valve 545 side while being depressurized to the low pressure state.

The lower end portion 547a of the shaft valve 547, which is a portion for blocking the oxygen outlet hole 541d, has a taper shape of preferably about 10 to 20 degrees about the longitudinal axis. At this time, when the taper angle? Is less than 10 degrees or larger than 20 degrees, since the oxygen in the high-pressure oxygen container 520 is in a high-pressure state of about 20 MPa or more, the shaft valve 547 completely closes the oxygen outlet hole 541d It is not possible to close the oxygen breathing apparatus 100, and the high-pressure oxygen can leak out, thereby failing to perform the function of the portable oxygen breathing apparatus 100, in which oxygen should not flow out normally.

A thread groove 547b having a predetermined length in the circumferential direction is formed on the tapered upper portion of the shaft valve 547. The thread groove 547b has a female screw groove 541e formed in the main body valve body 541, Oxygen is caused to flow into the space between the screw groove 547b of the shaft valve 547 and the female screw groove 541e of the main body valve body 541 when the oxygen is discharged, The pressure of the first reduced pressure oxygen from the reduced pressure resistor 542 is reduced by the frictional resistance of the second valve 547b and discharged to the discharge valve 545 side. At this time, the pressure of oxygen discharged to the discharge valve 545 side is reduced to the atmospheric pressure level and the discharge rate is also reduced, so that the discharge of oxygen to the airbag part 400 is easy.

On the other hand, at least one sealing groove 547c is formed in the upper portion of the screw groove 547b of the shaft valve 547 to prevent the leakage of oxygen.

The sub knob 548 is screwed to the upper end of the main body valve body 541 to prevent it from being disengaged from the main body valve body 541 after engagement of the shaft valve 547.

The flow control valve 549 is fixedly coupled to the upper end of the shaft valve 547 via a screw 549a and the user rotates the flow control valve 549 to adjust the amount of oxygen discharged to the discharge valve 545 side . When the flow control valve 549 is rotated in the clockwise direction, the shaft valve 547 blocking the oxygen outflow hole 541d is moved upward to open the oxygen outflow hole 541d. When the oxygen outflow hole 541d is rotated in the counterclockwise direction, And blocks the hole 541d to prevent oxygen discharge. The user can adjust the discharge amount of oxygen by regulating the flow control valve 549. Normally, the oxygen discharge amount required by the user is about 3 to 4 L / min, but the required oxygen discharge amount can be changed according to the user's respiration amount. The amount of stored oxygen in the high-pressure oxygen container 520 according to the embodiment of the present invention is preferably stored in an amount that the user can use for about 15 minutes or more.

When the shaft valve 547 blocking the oxygen outflow hole 541d is opened by the rotation of the flow control valve 549, the oxygen in the high pressure state is reduced in pressure through the pressure reducing resistor 542 and the shaft valve 547 And passes through the discharge valve engagement hole 541c and the connection pipe 510 communicated with the discharge valve 545 and enters the airbag part 400. [

At this time, in the main body valve body 541, a reduced pressure space 541f is formed in the lower side space of the shaft valve 547 so that the pressure can be reduced by a change in sectional area of the high pressure oxygen passing through the pressure reducing resistor 542 desirable. In addition, it is preferable that the inside of the discharge valve 545 also gives a change in cross-sectional area in order to reduce the pressure of oxygen and decrease the speed.

As described above, the pressure of oxygen coming out of the discharge valve 545 through the depressurization process is changed from the high pressure state to the low pressure state, and the outlet pressure of the discharge valve 545 is formed at the atmospheric pressure.

The discharge valve nut 546 is for fixing the connection pipe 510 connected to the discharge valve 545 and has a structure in which the connection pipe 510 is not cut when the discharge valve nut 546 is engaged . It is preferable that the connection pipe 510 is made of a soft material such as silicon and the coil spring 511 and the coil spring 511 are disposed inside the connection pipe 510 in order to prevent oxygen discharge resistance by twisting the connection pipe 510. [ It is also possible to insert the same connector anti-tangle material.

The operation of the portable oxygen respirator constructed as described above will be described below.

First, when liquid oxygen is injected into the high-pressure oxygen container 520, the cap valve 530 provided with the container valve 522 and the copper film 531 is screwed to the injection port 521 to seal the liquid valve .

At this time, the amount of the liquid oxygen to be injected is determined so that the internal pressure in the high-pressure oxygen container 520 can attain the equilibrium pressure at a pressure of 20 to 25 MPa.

When the main body valve body 541 of the regulator part 540 is engaged with the regulator part 540 at the upper part of the cap valve 530, the pin valve 543 penetrates the copper film 531, 520, and the high pressure oxygen is no longer discharged due to the sealing of the shutoff valve 547 in the lower end of the main body valve body 541. At this time, an oxygen filling pressure is displayed on the pressure gauge 540a side, and a filling pressure of about 20 MPa to 25 Mpa is formed.

In this state, the oxygen should be completely sealed to prevent leakage to the outside, and airtightness must be ensured for a considerably long time until the user operates.

The regulator part 540 and the airbag part 400 are connected to each other by the connection pipe 510 and the airbag part 400 is connected to the connection part 330 of the flow path part 300 in this state.

When the user uses the portable oxygen respirator 100 in a state of being combined with the above-described configuration, when the hood unit 210 is worn over the head and the mask 310 is worn so that the user's nose and mouth are shielded from the outside air The hair band 212 of the hood unit 210 is tightened by hand so that the mask 310 is further brought into close contact with the face region and then the flow rate regulating valve 549 of the regulator unit 540 is rotated so that proper oxygen is discharged do.

When the user rotates the flow control valve 549 to open the discharge port, the liquid oxygen in the high pressure state is vaporized and discharged through the pressure reducing resistor 542. While passing through the pressure reducing resistor 542, The first decompression is performed. Then, the air is passed through the shutter groove 547b of the shuttle valve 547, and a second or a third pressure reduction is performed. Finally, oxygen is discharged through the discharge valve 545 and flows into the airbag portion 400.

In this state, when the user breathes through the mask 310, oxygen can be sucked in the airbag part 400. When the user breathes, oxygen is sucked through the inspiratory flow path 331. When the user exhales, The check valve (not shown) of the check valve 331 is prevented from discharging the exhalation, and is discharged only through the exhalation flow path 332. In the case of exhalation, the exhalation passes through the carbon dioxide adsorbent 320a to partially remove the carbon dioxide, and the exhalation can be fed back to the airbag unit 400 to be reused. As a result, the use time of the portable oxygen respirator can be further increased.

The oxygen supplied from the high-pressure oxygen container 520 to the interior of the airbag part 400 and sucked through the mask 310 can be sucked for a certain period of time, so that the oxygen stored in the high- The user will be able to evacuate to a safe place while breathing oxygen until exhaustion.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

100: portable oxygen respirator 200: wearing part
210: hood 211: facial window
212: Hair band 220: Shoulder part
221: relief valve 300:
310: mask 320:
320a: Carbon dioxide adsorbent 321: Adsorption unit
330: connection 331:
332: exhalation flow passage 400: air bag section
500: oxygen supply unit 510: connection pipe
520: high-pressure oxygen container 521: inlet
522: container valve 530: cap valve
531: Copper film 532: Sealing material
540: Regulator part 540a: Pressure gauge
541: Main body valve body 541a: Gage coupling hole
541b: Safety valve engagement hole 541c: Discharge valve engagement hole
541d: Oxygen outlet hole 542: Decompression resistor
543: pin valve 544: safety valve
545: Discharge valve 546: Discharge valve nut
547: shaft valve 547b: screw groove
547c: sealing groove 548:
549: Flow control valve

Claims (9)

delete A wearer having a hood portion of a structure that can be turned upside down to protect a user's head and having a shoulder portion extending downward from the hood portion to cover a user's shoulder,
A channel portion formed on the front surface of the hood portion so as to allow the user to exhale and inspire in a state in which the nose and mouth of the user wearing the wearing portion are shielded from the external contaminated air,
An airbag unit coupled to the flow path unit and configured to store and supply oxygen so that the user can breathe oxygen in a state in which the user is blocked from the outside air; And
And an oxygen supply unit connected to the airbag unit and configured to supply a predetermined amount of oxygen to the airbag unit side when the user operates the discharge port,
Wherein the airbag is integrally coupled to the inside of the front surface of the shoulder portion, the airbag portion is integrally formed on the front surface of the shoulder portion, and a relief valve for forcibly discharging air to the outside when oxygen gas is supplied to the airbag portion, And a connection pipe coupling valve to which the connection pipe is coupled. 3. The method of claim 2,
Wherein the channel portion is located inside a pair of through holes formed in a front surface of the hood portion and is configured to allow a user to breathe oxygen while the mouth and nose of the user are blocked from external contaminated air, A breathing body having a structure in which an exhalation flow path and an inspiration flow path are separated and formed, and a connection portion in which a separate flow path corresponding to the empiric flow path and the inspiratory flow path is formed so that the user's exhalation and inspiration can be angularly moved Features a portable oxygen respirator. The method of claim 3,
And the adsorbing portion includes a carbon dioxide adsorbent which is located on the side of the air flow path of the respiratory body through which the user's exhalation moves and adsorbs carbon dioxide contained in the user's exhalation and circulates the air to the air bag portion side Portable oxygen breathing apparatus. The method according to claim 3 or 4,
The wearer may further include a transparent face window on the front face of the hood so as to ensure a good visibility when worn by the wearer, and a hair band for allowing the mask to be strongly adhered to the face when the wearer wraps Portable oxygen respirator. The method according to any one of claims 2 to 4,
Wherein the wearer is further coupled to a neckband which is located inside a portion where the hood and the shoulder are connected and prevents external contaminated air from flowing into the hood. delete A wearer having a hood portion of a structure that can be turned upside down to protect a user's head and having a shoulder portion extending downward from the hood portion to cover a user's shoulder,
A channel portion formed on the front surface of the hood portion so as to allow the user to exhale and inspire in a state in which the nose and mouth of the user wearing the wearing portion are shielded from the external contaminated air,
An airbag unit coupled to the flow path unit and configured to store and supply oxygen so that the user can breathe oxygen in a state in which the user is blocked from the outside air; And
And an oxygen supply unit connected to the airbag unit and configured to supply a predetermined amount of oxygen to the airbag unit side when the user operates the discharge port,
Wherein the oxygen supply unit includes a high pressure oxygen container having an internal space in which liquid oxygen is injected into an injection port and then stored, a container valve screwed into the injection port and having a passage through which oxygen is exhausted, A cap valve provided inside the high pressure oxygen container and having a thickness capable of being screwed and preventing external leakage of injected oxygen and being punctured when an external impact force is applied; And a connection pipe connecting the regulator part and the airbag part so as to communicate with each other,
A main body valve body through which the regulator part is inserted, a gauge coupling hole and a safety valve coupling hole are formed in a lower side surface of the regulator part, and a discharge valve coupling hole through which oxygen is discharged is formed on the upper side surface;
A main body valve body disposed in a lower portion of the main body and configured to filter foreign substances in the oxygen from the high pressure oxygen container and to reduce a discharge pressure of oxygen, A pressure-reducing resistor made of a porous metal material in which oxygen under a high pressure state is subjected to primary resistance depressurization with oxygen in a low pressure state;
And a valve body that is inserted into the lower body of the main body valve body after the pressure reducing resistance body is inserted and is screwed to the cap valve and penetrates the inside of the main body valve body so that oxygen can be discharged from the high- ;
A pressure gauge screwed to the gauge coupling hole and indicating an oxygen filling pressure at a high pressure state;
A safety valve having a structure in which the safety valve is screwed to the safety valve engagement hole and oxygen can be forcedly discharged when the oxygen pressure in the high-pressure oxygen container rises above a certain pressure;
A discharge valve screwed to the discharge valve coupling hole and discharging low-pressure oxygen to the airbag communicating through the coupling pipe;
A discharge valve nut screwed to the discharge valve and provided so that the connection pipe can be fixedly engaged;
A shaft valve rotatably coupled to the inside of the main body valve body and opening / closing an oxygen outflow hole formed in the main body valve body to control the flow of oxygen;
A sub knob screwed on an upper portion of the main body valve body and controlling a movement distance of the shaft valve to move up and down when the shaft valve rotates to adjust an amount of oxygen discharged from the high pressure oxygen container; And
And a flow rate control valve fixedly coupled to an upper end of the shaft valve and capable of adjusting an amount of oxygen discharge by adjusting a rotation of a user. 9. The method of claim 8,
Wherein one end of the shaft valve has a tapered shape with an angle of 10 to 20 degrees with respect to a longitudinal axis and a screw groove having a predetermined length in the circumferential direction is formed so that the primary reduced oxygen coming from the reduced pressure resistor passes through the screw groove And a second decompression structure by friction resistance and sectional area change.
KR1020180025495A 2018-03-03 2018-03-03 Compressed-oxygen breathing apparatus KR101870114B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102231592B1 (en) * 2020-03-05 2021-03-23 엄관용 Disposable Mechanical Ventilator
KR20220036273A (en) * 2020-09-15 2022-03-22 주식회사 디에이치오션 System and method for measuring air quality of diving air tank

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KR200190547Y1 (en) 2000-01-21 2000-08-01 삼공물산주식회사 Apparatus preventing the polluted gas inflow of hempen hood type gas mask
KR200234760Y1 (en) 2000-11-18 2001-09-25 (주)버추얼메디 Potable oxygen suppling device for anti-gas mask
KR200316831Y1 (en) 2003-03-12 2003-06-18 박창우 Fire protection gas mask with oxygen generator
KR101743271B1 (en) * 2017-01-20 2017-06-14 주식회사 제이원퓨처스 Emergency Escape Respirator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200190547Y1 (en) 2000-01-21 2000-08-01 삼공물산주식회사 Apparatus preventing the polluted gas inflow of hempen hood type gas mask
KR200234760Y1 (en) 2000-11-18 2001-09-25 (주)버추얼메디 Potable oxygen suppling device for anti-gas mask
KR200316831Y1 (en) 2003-03-12 2003-06-18 박창우 Fire protection gas mask with oxygen generator
KR101743271B1 (en) * 2017-01-20 2017-06-14 주식회사 제이원퓨처스 Emergency Escape Respirator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102231592B1 (en) * 2020-03-05 2021-03-23 엄관용 Disposable Mechanical Ventilator
KR20220036273A (en) * 2020-09-15 2022-03-22 주식회사 디에이치오션 System and method for measuring air quality of diving air tank
KR102509177B1 (en) * 2020-09-15 2023-03-13 주식회사 디에이치오션 System and method for measuring air quality of diving air tank

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