KR101944697B1 - Oxygen breathing apparatus for emergency - Google Patents

Abstract

The present invention relates to an automatic flow amount adjustment type emergency oxygen respirator. The automatic flow amount adjustment type emergency oxygen respirator includes: an oxygen storage container having an inlet and an outlet while storing compressed oxygen; a housing including an internal storage space unit, an upper outlet connected to the internal storage space unit, a lower connector interconnected with the inlet and outlet of the oxygen storage container, and an internal path interconnecting the inlet and outlet with the storage space unit; an opening/closing unit which is mounted on the housing to open and close the path while having a handle for controlling the same; an automatic flow amount adjustment unit which is arranged on the storage space unit of the housing in order to automatically control the flow amount in accordance with the conveyance pressure change of the compressed oxygen being conveyed to the outlet; an oxygen supply tube having an end connected to the outlet of the housing; and a respirator unit which is coupled to the other end of the oxygen supply tube in order to let a user wearing the same breathe in the oxygen supplied from the oxygen storage container. The automatic flow amount adjustment type emergency oxygen respirator can execute oxygen supply operations by simply controlling the handle of the opening/closing valve in an emergency, such as fires, while keeping the inlet and outlet of the oxygen storage tank open at all times.

Description

[0001] The present invention relates to an OXYGEN BREATHING APPARATUS FOR EMERGENCY,

[0001] The present invention relates to an emergency oxygen respirator that can help a user to escape safely by supplying oxygen during an emergency such as a fire. In particular, The present invention relates to an automatic flow control type emergency oxygen breathing apparatus capable of supplying oxygen only by operating a handle of an opening / closing valve.

In general, fire accidents caused by fire in buildings, houses, or underground structures are caused by direct exposure to flames. However, most of them are caused by toxic gas and smoke, and in fact, 1 minute Survival rate decreased by 7 ~ 10% at the time of elapsed time, and the survival rate dropped to 25% at 5 minutes and less than 5% at 10 minutes.

Accordingly, most of the buildings or apartments are equipped with fire extinguishers such as fire extinguishers and stiffeners. However, such fire extinguishers alone can not cope with suffocating accidents due to toxic gases and smoke.

In addition, underground structures such as the subway history are equipped with a large number of emergency respirators that are used to purify toxic ambient gas, but these respirators can not completely filter out various kinds of toxic substances at the same time, If the amount of oxygen in the air drops to 18% or less, stable breathing can not be performed.

Thus, in a fire scene or a toxic gas leakage site, it is necessary to provide a smooth supply of oxygen and to evacuate promptly so as to minimize the damage of a person suffering from asphyxia, thereby necessitating a device capable of breathing oxygen quickly and easily .

In order to enable oxygen to be breathed smoothly even in a situation where it is difficult to supply oxygen, there has conventionally been proposed a system in which a tank portion in which oxygen is stored, a body portion connected to the tank to supply and discharge oxygen through the supply tube, (Hereinafter referred to as "Document 1"), Korean Patent Registration No. 10-0890907 (hereinafter referred to as "Patent Document 1"), and a breathing portion connected to a supply tube Hereinafter referred to as "document 2") and the like.

The emergency oxygen respirators of Documents 1 and 2 were required to confirm whether oxygen was supplied in a manner that the user directly inhaled after wearing the respiratory part. In the early stage of the emergency, oxygen was not supplied smoothly to the oxygen respirator, Since normal breathing is possible, it is possible to recognize it correctly and take appropriate measures.

However, when anxiety and fear are increased due to smoke and toxic gas, it is not possible to reliably determine whether oxygen is continuously supplied to the oxygen respirator even though the respiratory respirator normally breathes through the emergency oxygen respirator. Therefore, It is confirmed through respiration again, and if it becomes psychologically more chased by these minute parts and reasonual judgment becomes blurred, it becomes a problem that leads to human accidents.

In addition, since the connection between the body part and the supply tube is not firmly established, when the obstacle is caught by the obstacle or the tube is twisted and clogged during the evacuation, the supply tube is separated from the body part and the oxygen can not be sucked for a certain period of time There was a problem that caused a serious situation.

In addition, if the supply of oxygen discharged from the tank part is forcibly blocked by external pressure in the supply tube or the breathing part and the internal pressure of the tank part is increased, there is a possibility of occurrence of secondary accident due to explosion of the tank part or the body part (Hereinafter, referred to as "document 3"), and a technique for an emergency oxygen breathing apparatus capable of solving such a problem is proposed in Korean Patent Application No. 10-1699514.

The emergency oxygen respirator in Document 3 is a system in which compressed oxygen is charged into an oxygen container and the oxygen container sealed with a copper plate is coupled to a decompressor. In use, the perforated pin is purged from the copper plate of the oxygen container to supply oxygen There is a possibility that a large number of cases in which the oxygen supply is unstable due to the debris of the copper plate which has fallen off during the penetration of the copper plate of the oxygen container is blocked by the oxygen supply pipe of the piercing pin, So that it is difficult for the consumer to recycle and it is difficult to adjust the supply amount of the compressed oxygen constantly according to the change of the oxygen discharge amount pressure.

Literature 1. Registered Utility Model No. 20-0338192 (Registered on December 30, 2003) Document 2. Korean Patent Registration No. 10-0890907 (Registered on March 23, 2009) Literature 3. Korean Patent Registration No. 10-1699514 (Registered on January 18, 2017)

An object of the present invention is to provide an automatic flow control type emergency oxygen respirator having a structure capable of minimizing breakage of an oxygen supply tube for interconnecting a discharge port of a housing and a hood type respirator.

It is another object of the present invention to provide an automatic flow control type emergency oxygen breathing apparatus capable of automatically controlling the pressure to supply a predetermined amount of oxygen even when the pressure is changed from a high pressure to a low pressure due to use of oxygen.

In addition, the present invention can provide the oxygen supply directly to the oxygen storage container only by the operation of the opening / closing valve without providing a separate sealing member at the inlet and the outlet of the oxygen storage container, and also prevent foreign matter from entering into and out of the oxygen storage container, And an automatic flow control type emergency oxygen breathing machine provided with a metal mesh filter.

According to an aspect of the present invention, there is provided an automatic flow control type emergency oxygen respirator,

An oxygen storage container having an inlet and an outlet for storing compressed oxygen therein;

A housing having an inner accommodation space and an upper outlet communicating therewith, a lower connection port mutually coupled with an inlet and an outlet of the oxygen storage container, and an inner passage interconnecting the accommodation space and the inlet and outlet;

An opening / closing unit mounted on the housing to handle the opening and closing of the passageway and having a handle for the operation;

An automatic flow control unit disposed in the housing space of the housing for automatically controlling the compressed oxygen flow rate in accordance with a change in the delivery pressure of the compressed oxygen delivered to the discharge port side;

An oxygen supply tube whose one end is connected to the outlet of the housing; And

A respirator coupled to the other end of the oxygen supply tube so as to be able to suck oxygen supplied from the oxygen storage container in a state worn by a user;

Lt; / RTI >

It is possible to supply oxygen directly to the user only by operating the handle of the opening / closing unit in an emergency.

An automatic flow control type emergency oxygen respirator according to the present invention includes:

An oxygen opening / closing valve, a safety valve, an oxygen filling port, and a pressure gauge are attached to the housing in four directions, an oxygen container is connected to the bottom, and an outlet is provided at the top to minimize the breakage of the hose for connection between the housing and the hood type respirator It is effective.

In addition, it has an effect of automatically controlling the pressure so that oxygen is discharged at a predetermined amount even when the pressure is changed from a high pressure to a low pressure due to the use of oxygen.

Further, there is an effect of preventing the foreign matter from obstructing the flow by blocking the oxygen supply passage through the metal filter.

Also, the oxygen filling nozzle can be easily detached and attached when oxygen is charged by applying a quick coupling.

In addition, it has the effect of replacing the safety hole for preventing breakage in the housing internal pressure surge by a more stable safety valve structure.

In addition, in the conventional method in which oxygen is supplied to the oxygen container by the perforated pin, by replacing the handle with the operation of the opening / closing valve, it is possible to prevent the phenomenon that the fragments generated during the perforation block the passage.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view showing an automatic flow control type emergency oxygen respirator according to the present invention;
2 is a view for showing a connection state between an oxygen storage container, a housing and a respirator,
FIG. 3 is an operating state sectional view for showing a process of supplying compressed oxygen to the respiratory side in the automatic flow control type emergency oxygen respirator according to the present invention. FIG.
Fig. 4 is a cross-sectional configuration view seen from another direction to show the charging unit and the safety valve unit 90 in the present invention,
5 is a partial operating state sectional configuration view for showing the elastic supporting means of the second embodiment;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

1, the oxygen storage container side is referred to as the lower or the lower side, and the housing side is referred to as the upper or upper direction, and the opening / closing unit side is referred to as the left or right side and the pressure measurement gauge side is referred to as the right or left side And the direction of the charging unit side as the front portion or front side and the side of the safety valve unit as the rear portion or rear side will be specified on the basis of FIG.

1 to 5, an automatic flow control type emergency oxygen respirator according to the present invention includes:

A housing 20, an opening and closing unit 30, an automatic flow control unit 40, an oxygen supply tube 50, and a respirator 60. The oxygen storage tank 10, the housing 20,

Looking at each configuration,

The oxygen storage vessel (10)

As shown in Figs. 1 and 2,

(11) for storing compressed oxygen therein and having an inlet and an outlet for compressed oxygen,

As shown in Fig.

The housing 20

As shown in Figs. 1 to 4,

The internal space portion 21,

An upper outlet 22 communicating with the accommodation space 21,

A lower connection port 23 which is mutually coupled with the inlet / outlet 11 of the oxygen storage container 10, and

An internal passage 24 interconnecting the accommodation space 21 and the inlet /

As shown in Fig.

The connection space 23 is formed with a spiral portion along the outer circumference of the connection space 23. The oxygen storage container 10 has a corresponding spiral portion 23 formed at the inner periphery of the inlet 11 of the oxygen storage container 10, So that the oxygen storage container 10 is fixedly connected to the connection port 23 of the housing 20.

And, as in Figure 1, the passageway (24)

A lower vertical passage 241 extending upward from the connection port 23,

A lower horizontal passage 242 bent in the left direction from the lower vertical passage 241,

An intermediate vertical passage 243 bent upwardly from the lower horizontal passage 242,

An upper horizontal passage 244 bent in a rightward direction from the middle vertical passage 243,

An upper vertical passage 245 bent upward in the upper horizontal passage 244 and leading to the accommodation space portion 21 side,

.

1, the housing space 21 of the housing 20 is a space opened upward, and the housing 20 is provided with the outlet 22 at an upper portion thereof, and the housing 20 And a cover (25) coupled to the housing (20) in such a manner as to cover the receiving space (21) of the housing (20).

At this time, a spiral portion is formed on the outer periphery of the upper end of the housing 20 and a corresponding spiral portion is formed on the inner circumferential surface of the cover 25 so that the spiral portion and the corresponding spiral portion are fastened to each other at the upper end of the housing 20 The cover 25 is fixedly coupled. It is also preferable that a gasket for sealing is provided on a contact surface between the upper end of the housing 20 and the cover 25.

As shown in FIG. 1, one of two or more flow rate adjusting holes 27 having different diameters of the outlet is installed in the outlet 22 of the housing 20, for example, A flow control valve 27 having a diameter is spirally coupled to the discharge port 22 and the outlet of the flow rate control valve 27 is directed to the discharge port 22. As another example, a flow rate regulator 27 whose outlet is smaller than the outlet 22 is spirally connected to the outlet 22, and the outlet of the flow rate regulator 27 is directed to the outlet 22.

As a result, the flow rate of the compressed oxygen discharged through the discharge port 22 can be selectively controlled by selecting one of the two or more flow rate regulating ports 27 having different diameters of the outlet and fixing the same to the discharge port 22 .

1, a metal mesh filter 28 may be provided on the connection port 23 of the housing 10. The filter 28 filters out impurities contained in the compressed oxygen supplied to the passage 24 of the housing 20 in the oxygen storage vessel 10 and also supplies the compressed oxygen to the oxygen storage vessel 10 So as to filter the impurities contained in the compressed oxygen to be charged.

The opening / closing unit (30)

As shown in Figures 1 and 3,

And is mounted on the housing 20 for opening and closing the passage 24,

An opening 31 formed at the left side of the housing 20 to open a part of the passage 24,

A socket 32 mounted on the opening 31, and

Closing valve 32 having a handle 331 which is spirally coupled to the inside of the socket 32 so as to move leftward and rightward when it rotates and to block a part of the passage 24 at the time of forward movement and exposed to the outside at an end thereof, (33)

.

1, a part of the passage 24 corresponds to the middle vertical passage 243 in the passage 24, and the opening 31 corresponds to the middle vertical passage 243 in which the middle vertical passage 243 is exposed to the outside And a space structure formed so as to be recessed from the left side to the right side of the housing 20.

1, a spiral portion is formed at the inner periphery of the opening 31, and a corresponding spiral portion is formed at the outer periphery of the socket 32, whereby the spiral portion and the corresponding spiral portion are mutually fastened The socket (32) is fixedly coupled to the opening (31).

The open / close valve (33) is coupled to the space, and an end of the open / close valve (33) is connected to the middle vertical passage (243) And the handle 331 is exposed through the space of the socket 32 to the outside.

Furthermore, it is preferable that a gasket such as an O-ring is provided at the end of the opening / closing valve 33 to increase the blocking performance when the middle vertical passage 243 is blocked by the end of the opening / closing valve 33.

Therefore, when the handle 331 is held by hand and rotated in the forward or reverse direction, the opening / closing valve 33 moves forward and backward to open or close the middle vertical passage 243.

As a result, it is not necessary to puncture the sealing member provided at the inlet / outlet port 11 of the oxygen storage container 10, The user can directly supply oxygen to the user only by operating the oxygen sensor 331.

The automatic flow control unit (40)

As shown in Figures 1, 3 and 4,

And is configured to automatically adjust the compressed oxygen flow rate in accordance with the change of the delivery pressure of the compressed oxygen delivered to the discharge port 22 side in the housing space 21 of the housing 20,

A hollow cylindrical post (21) integrally formed on the bottom of the housing space (21) of the housing (20) so as to have an internal reduced pressure space part (411) opened upwardly so that the outlet of the passage (24) (41),

A lifting bottom body 42 arranged to be lifted up and down in the reduced pressure space part 411 of the post 41 and spaced apart from the reduced pressure space part 411 so as to have a space 421 therebetween,

An elevating top body 43 connected to an upper portion of the ascending / descending bottom body 42, a lower end thereof being in close contact with the inner periphery of the depressurizing space portion 411 and an upper end being exposed to the upper side of the depressurized space portion 411,

A lifting disc 44 connected to the upper end of the lifting top body 43 and brought into close contact with the inner circumferential edge of the upper portion of the housing space 21 of the housing 20,

Elastic supporting means 45A, 45B for elastically supporting the lifting disc 44 upward,

Two or more inlets 46 passing through the center of the lifting bottom body 42 along the outer periphery of the lifting bottom body 42 to meet with each other,

A draw-out port 47 which is vertically passed through the center of the lifting body 43 and the lifting disk 44 and is connected to a point where the respective inlet ports 46 meet with each other, and

A recess 48 formed in the upper surface of the housing space 21 of the housing 20 so as to be upwardly recessed and disposed in a region between the outlet 47 and the outlet 22 of the housing 20,

.

3, the recess 48 is formed on the upper surface of the housing space 21 of the housing 20, that is, on the upper surface of the housing space 21, And is formed to have a smaller diameter than that of the lifting disc 44. [0064]

It is preferable that a gasket for sealing is provided on each of the contact surfaces between the reduced pressure space portion 411 of the posts 41 and the elevating body 43 and between the cover 25 and the elevating disk 44 .

Hereinafter, the elastic supporting means of the first embodiment will be referred to as '45A', and the elastic supporting means of the second embodiment will be referred to as '45B' .

As in Figures 3 and 4, the elastic support means 45A of the first embodiment

And an elastic spring 451 inserted into the post 41 and having a lower end supported at the bottom of the housing space 21 of the housing 20 and an upper end supported by the lower surface of the lifting disc 44.

As a result, the lifting disc 44 is elastically supported upward by the elastic spring 451.

As in Figure 5, the elastic support means 45B of the second embodiment

A support 452 protruded downward along the lower surface of the lifting disc 44,

A bracket 454 mounted on the periphery of the housing space 21 of the housing 20 and on the outer periphery of the post 41 and having a pair of upper and lower penetrating fitting holes 453,

Shaped elastic member 455 having both ends inserted into the fitting holes 453 of the bracket 454 and exposed to the lower side of the bracket 454 and to be in contact with the lower surface of the support 452,

An adjusting bolt 456 which adjusts the elastic force of the elastic member 455 to stop when the opening ends of the elastic member 455 are fastened and fastened or unclamped,

.

5, when the adjustment bolt 456 is tightened, both ends of the elastic member 455 fastened thereto are moved in directions opposite to each other, so that the interruption of the elastic member 455 is prevented The support 452 is compressed and moved so that the degree of resiliently pressing the support 452 can be adjusted.

In other words, as the adjustment bolt 456 is tightened, the elastic force of the elastic member 455 that elastically supports the support 452 increases, and the adjustment bolt 456 is reversed as in [ The resilient force of the elastic member 455 elastically supporting the support 452 decreases.

A tool insertion hole 26 for tightening or unscrewing the adjustment bolt 456 is formed on the side of the housing 20 and a tool insertion hole 26 is formed in the tool insertion hole 26, It is preferable that a separate stopper (not shown) is provided to prevent foreign matter from entering and to seal the accommodating space portion 21.

The compressed oxygen supplied from the oxygen storage vessel 10 through the passage 24 opened by the opening and closing unit 30 is supplied to the reduced pressure space portion 411 side of the post 41, 46 and the outlet 47 to reach the recess 48. At this time, when the high pressure compressed oxygen is filled in the recess 48 to lower the lifting disc 44 downward, The lower end of the ascending / descending bottom body 42 approaches the outlet of the passage 24 and flows into the decompressed space portion 411 side while the body 42 and the ascending and descending bottom body 42 integrally coupled thereto descend The compressed oxygen amount is reduced.

When the amount of compressed oxygen is decreased, the lifting disc 44 is lifted by the elastic supporting means 45A and 45B, and the lower end of the lifting bottom body 42 is moved away from the outlet side of the passage 24, The amount of compressed oxygen flowing into the reduced pressure space portion 411 side is increased.

As a result, the distance between the end of the lifting bottom body 42 and the outlet of the passage 24 is automatically adjusted, and the amount of compressed oxygen discharged to the discharge port 22 of the housing 20 can be controlled to be constant.

The oxygen supply tube (50)

As shown in Figs. 1 and 2,

One end of which is connected to the discharge port 22 of the housing 20 to supply compressed oxygen to the respirator 60,

And has a flexible tubular structure having a channel inside.

And can be fixedly coupled to the discharge port 22 of the housing 20 and the respirator 60 side.

The respirator (60)

As shown in Figure 2,

Is connected to the other end of the oxygen supply tube (50) so as to suck oxygen supplied from the oxygen storage container (10)

The respirator 60 may be formed of a mask covering the nose of the user and a mouth covering the mouth of the user, or a hood that can be worn to cover the entire head. In this respirator 60, air used by the user is discharged to the outside, Way valve (not shown) is preferably engaged.

The automatic flow control type emergency oxygen respirator according to the present invention further includes a charging unit 70, a pressure measurement gauge 80, and a safety valve unit 90,

The charging unit (70)

As shown in Figure 4,

For filling compressed oxygen into the oxygen storage vessel (10)

A charging path 71 connected to the passage 24,

An opening 72 formed on the front surface or the rear surface of the housing 20 and connected to the inlet of the charging path 71,

A quick coupling 73 having a well-known structure, which is mounted on the opening 72 and connected to the charge nozzle of the compressed oxygen filling device and is opened when the internal flow path is shut off and the compressed oxygen is filled through the filling nozzle,

.

At this time, the opening portion 72 is disposed on the front surface of the housing 20, and when the compressed oxygen through the charging unit 70 is charged, the opening portion 24 is used to block the passage 24 The compressed oxygen filling into the oxygen storage vessel 10 is carried out.

The pressure gauge 80

As shown in Figure 1,

A pressure gauge disposed on the passage 24 for measuring the pressure of the compressed oxygen passing through the passage 24 and for displaying the pressure outside.

The pressure measurement gauge 80 is provided on the right side of the housing 20 so as to pass through the passage 24 and the lower vertical passage 241 of the passage 24, They are spirally coupled.

The safety valve unit (90)

As shown in Figure 4,

To automatically discharge the oxygen of the pressure raised in the reduced pressure space portion 411 to the outside,

A safety passage 91 passing through the rear surface of the housing 20 forward and backward and slanting toward the reduced pressure space portion 411,

A safety valve 91 which is spirally connected to the outlet of the safety passage 91 and which blocks the outlet of the safety passage 91 and opens the outlet of the safety passage 91 when a pressure greater than the set value is reached, 92)

.

At this time, the safety valve 92 is a well-known discharge valve for relieving pressure, and a detailed description thereof will be omitted.

Accordingly, when high-pressure compressed oxygen is supplied to the decompressed space portion 411 side, the safety valve 92 opens the safety passage 91 and is discharged to the outside through the internal passage of the safety valve 92 So that damage to the housing 20 can be prevented.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the present invention has been described in connection with what is presently considered to be practical and exemplary embodiments, Modifications are to be construed as falling within the scope of protection of the present invention.

10: oxygen storage container
11: I / O
20: Housing
21:
22: Outlet
23:
24: passage
241: Lower vertical passage
242: Lower horizontal passage
243: Middle vertical passage
244: upper horizontal passage
245: upper vertical passage
25: cover
26: Tool insert hole
27: Flow regulator
28: Filter
29: Measuring Furnace
30: opening / closing unit
31: opening
32: Socket
33: opening / closing valve
331: Handle
40: Automatic flow control unit
41: Post
411: Pressure reducing space
42: lifting bottom body
421: The space between
43: Lift-up top body
44: lift disk
45A, 45B: elastic supporting means
451: Elastic spring
452: Support
453: Insertion hole
454: Bracket
455: Elastic member
456: Adjusting bolt
46: Inlet
47: Outlet
48: recess
50: oxygen supply tube
60: Respiratory
70: Charging unit
71: with charging
72:
73: Quick coupling
80: Pressure gauge
90: Safety valve unit
91: With safety
92: Safety valve

Claims (7)

An oxygen storage vessel (10) having an inlet (11) and compressed oxygen stored therein;
A lower connection port 23 which is mutually coupled with an inlet and an outlet 11 of the oxygen storage container 10 and a lower connection port 23 which is connected to the inlet space 11, (20) having an internal passageway (24) interconnecting the passageways (11);
An opening / closing unit (30) mounted on the housing (20) and having a handle (331) for opening / closing the passage (24)
An automatic flow control unit 40 disposed in the housing space 21 of the housing 20 for automatically controlling the compressed oxygen flow rate in accordance with a change in the delivery pressure of the compressed oxygen delivered to the discharge port 22;
An oxygen supply tube (50), one end of which is connected to the outlet (22) of the housing (20); And
A respirator 60 connected to the other end of the oxygen supply tube 50 to suck oxygen supplied from the oxygen storage container 10 in a state worn by a user;
Lt; / RTI >
Oxygen can be supplied directly to the user only by operating the handle 331 of the opening / closing unit 30 in an emergency,
The automatic flow rate control unit (40)
A cylindrical post 41 erected at the bottom of the housing space 21 of the housing 20 so as to have an internal reduced pressure space part 411 opened upwardly so that the outlet of the passage 24 is disposed at the center of the inner bottom, ,
A lifting bottom body 42 which is vertically lifted and raised in the reduced pressure space part 411 of the post 41 and is spaced apart from the reduced pressure space part 411 so as to have a space 421 therebetween,
An elevating body 43 connected to an upper portion of the ascending / descending bottom body 42, a lower end of which is brought into close contact with the inner periphery of the depressurizing space portion 411 and whose upper end is exposed to the upper portion of the depressurized space portion 411,
A lifting disc 44 connected to an upper end of the lifting body 43 and closely contacting the inner periphery of the upper portion of the housing space 21 of the housing 20,
Elastic supporting means 45A and 45B for elastically supporting the lifting disc 44 upward,
Two or more inlets 46 passing through the center of the lifting bottom body 42 along the outer periphery of the lifting bottom body 42 to meet with each other,
A draw-out port 47 which is vertically passed through the center of the lifting body 43 and the lifting disk 44 and is connected to a point where the respective inlets 46 meet with each other,
A recess 48 formed in the upper surface of the housing space 21 of the housing 20 so as to be upwardly recessed and disposed in a region between the outlet 47 and the outlet 22 of the housing 20,
Wherein the air flow rate control valve is provided with an automatic flow control type emergency oxygen respirator.
The method according to claim 1,
The opening / closing unit (30)
An opening 31 formed in the left side of the housing 20 to open a part of the passage 24,
A socket 32 mounted on the opening,
Closing valve (not shown) having the handle 331 which is exposed to the outside at the end portion of the opening 241, which is connected to the socket 32, 33)
Wherein the air flow rate control valve is provided with an automatic flow control type emergency oxygen respirator.
delete The method according to claim 1,
The elastic supporting means 45A is inserted into the post 41 and has a lower end supported on the bottom of the housing space 21 of the housing 20 and an upper end supported on the lower surface of the lifting disc 44 451). ≪ / RTI >
The method according to claim 1,
The elastic support means (45B)
A support 452 protruded downward along the lower surface of the lifting disc 44,
A bracket 454 mounted on the periphery of the housing space 21 of the housing 20 and the outer periphery of the post 41 and having a pair of fitting holes 453,
Shaped elastic member 455 having both ends inserted into the fitting holes 453 of the bracket 454 and exposed to the lower side of the bracket 454 and to be in contact with the lower surface of the support 452,
An adjusting bolt 456 which is tightened at both open ends of the elastic member 455 and adjusts the elasticity of the elastic member 455 in stopping or unclamping operation,
The stopper of the elastic member 455 is moved toward the support 452 to adjust the degree of pressing and pressing the support 452 while elastically supporting the support 452. [ Flow controlled emergency oxygen respirator.
The method according to claim 1 or 2 or 4 or 5,
Wherein one of two or more flow rate adjusting ports (27) having different diameters of an outlet is mounted on the discharge port (22) of the housing (20).
The method according to claim 1 or 2 or 4 or 5,
A metal mesh filter 28 is provided on the connection port 23 of the housing 20,
A charging passage 71 connected to the passage 24 and an opening 72 formed at a front surface or a rear surface of the housing 20 and connected to the inlet of the charging passage 71, , A quick coupling (73) mounted on the opening (72) and connected to the charge nozzle, the internal passage being blocked, and being opened upon filling the compressed oxygen through the filling nozzle Further,
Further comprising a pressure gauge (80) disposed on said passage (24)
Further comprising a safety valve unit (90) for automatically discharging the oxygen of the increased pressure from the reduced pressure space part (411) to the outside.

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