WO2022108023A1 - Oxygen mask for fire evacuation - Google Patents

Abstract

The present invention relates to an oxygen mask allowing a user to easily evacuate to a safe place in case of a fire, the oxygen mask comprising a hood worn on the head of a user, and an oxygen supply unit, detachably coupled to a supply inlet provided on the hood, for supplying oxygen into the hood, wherein the air supplied from the oxygen supply unit into the hood, along with the breath of the user, causes the air pressure inside the hood to be positive.

Description

Oxygen Mask for Fire Evacuation

The present invention relates to an oxygen mask for evacuation of a fire, and more particularly, to an oxygen mask for evacuation of a fire that allows a user to easily evacuate to a safe place in the event of a fire.

In general, the mask is divided into a filter mask used in industrial sites where harmful gases and dust are generated, and a mask capable of self-contained breathing used in oxygen-deficient sites such as mines and fire sites. It is configured to breathe by filtering dust generated in the field through a purification tank, and a self-contained breathing mask is configured to prevent the wearer from inhaling toxic gas and to supply oxygen necessary for breathing.

In general, a self-contained breathing mask consists of an oxygen tank filled with compressed air, and a mask worn on the wearer's respirator. However, this self-contained breathing mask has a problem in mobility and portability due to the large volume of the oxygen tank. .

That is, the mask capable of self-contained breathing as described above provides a suitable configuration for firefighters who extinguish a fire while staying in a fire place for a long time, but there is a problem in that it is difficult to apply to the general public due to poor portability and mobility. In particular, it is very difficult for the elderly, children, and women to carry heavy oxygen tanks to the evacuation site.

Accordingly, in public facilities and homes such as subways, airports, schools, and buildings, a smoke-proof mask using a purifier is provided.

The smoke mask as described above has the advantage of excellent portability and portability because it does not use a bulky oxygen tank, and also has the advantage of being easy to wear.

However, the existing purification tank oxygen mask has insufficient configuration to ensure the golden time for the wearer to move to a safe place.

In other words, the purifier of the smoke mask has a configuration that blocks the inflow of toxic gas with various well-known methods such as particle filtration (filter), chemical adsorption (activated carbon), and chemical neutralization (addition of chemicals), but has its own oxygen This is because the generation and oxygen supply functions are not provided at all.

As the movement time for the wearer to evacuate to a safe place increases, the performance of the purification tank deteriorates. Accordingly, the wearer suffers from oxygen deprivation symptoms and eventually suffocates. In particular, when the fire is located in a subway, jjimjilbang, or basement of a building where oxygen concentration is low, the wearer suffers from oxygen starvation even though the purifier performs its functions. In fact, it is specified by law that an oxygen mask using a purification tank cannot be used at an oxygen concentration of 17% or less.

In addition, if the evacuation line is complicated and long, it is difficult for the elderly, children, and women to move only by relying on a smoke mask using a purifier, so it is difficult for healthy adult men as well. .

In particular, if the wearer passes through a point where the oxygen concentration falls in the process of moving to a safe place, even if he wears a smoke mask, he suffers from oxygen deficiency symptoms due to insufficient oxygen concentration.

When experiencing oxygen deprivation symptoms, it becomes difficult for all people of all ages to make a cool and rational judgment, and exercise ability decreases according to exposure time.

Accordingly, the present applicant has proposed the present invention in order to solve the above problems, and as a related prior art document, there is a 'self-contained oxygen respirator' of Republic of Korea Patent Publication No. 10-1138310.

The present invention is to solve the above problems, the wearer does not decrease the mobility of the wearer in the process of evacuating to a safe place in case of fire, and at the same time, only pure oxygen can be supplied during the golden time when moving to a safe place. An object of the present invention is to provide an oxygen mask for fire evacuation that is configured to be so.

The present invention, a hood worn on the wearer's head; and an oxygen supply unit detachably coupled to a supply port formed in the hood to supply oxygen to the inside of the hood, wherein oxygen supplied from the oxygen supply unit to the inside of the hood is combined with the wearer's exhalation of the hood. The inside can be made into a positive pressure state.

In addition, the size and shape of the hood and the inner surface of the hood spaced apart from the wearer's face or head by a predetermined distance when worn on the wearer's head so that the inside can achieve a positive pressure state by the pure oxygen supplied by the oxygen supply unit can have

In addition, the oxygen supply unit, a can filled with compressed oxygen; a male coupling part provided at the upper end of the can and enclosing a nozzle from which compressed oxygen is discharged; and a guide groove provided on an outer periphery of the male coupling part.

In addition, the supply port is provided with a female coupling portion rotationally fastened with the male coupling portion of the oxygen supply unit, the female coupling portion forms an insertion hole into which the male coupling portion can be inserted, the inner circumferential surface dividing the insertion hole is the A protrusion member fastened to the guide groove may be provided.

In addition, the guide groove, a vertical section in which the protruding member is moved in the vertical direction; an inclined section communicatively connected to the vertical section and in which the protruding member is moved in an inclined direction; a first horizontal section connected in communication with the inclined section and in which the protruding member is moved in a horizontal direction; and a second horizontal section communicatively connected to the first horizontal section while having a width smaller than the width of the first horizontal section, and restricting movement of the protruding member.

In addition, the oxygen supply unit may be rotated in one direction when a fire occurs while maintaining a state coupled to the female coupling unit provided in the supply port to supply oxygen to the inside of the hood.

In addition, in the inclined section, a stepped portion that is in contact with the protruding member and blocks the movement of the protruding member in the vertical section may be provided.

In addition, in the first horizontal section, a stopper that is in contact with the protruding member and blocks the movement of the protruding member to the second horizontal section may be provided.

In addition, an evacuation aid module is provided on the drawstring of the hood to help the wearer evacuate, and the evacuation aid module includes: a housing mounted on the drawstring; an LED lighting unit provided in the housing to help secure the wearer's field of vision; a speaker provided in the housing to generate an alarm sound; and a position tracking sensor embedded in the housing.

In addition, the evacuation assistance module may further include a safety pin that is separated from the housing when the wearer wearing the hood pulls the end of the drawstring, and may be operated when the safety pin is separated from the housing.

The fire evacuation oxygen mask according to an embodiment of the present invention provides a configuration that supplies only pure oxygen to the wearer so that the wearer using the hood does not suffer from oxygen deficiency symptoms that occur as the oxygen concentration falls at the fire site. Allow the wearer to safely travel to an evacuation area or wait for firefighters.

In addition, the fire evacuation oxygen mask according to an embodiment of the present invention provides a configuration for supplying pure oxygen only during the golden time when the wearer moves to a safe place, or the golden time when the firefighters arrive, so that oxygen is supplied The size and volume of the configuration are simplified, ultimately improving the mobility and portability of the wearer.

In addition, the fire evacuation oxygen mask according to an embodiment of the present invention provides a configuration for supplying oxygen to the wearer with a simple and simplified structure, so the manufacturing cost is low, and accordingly, schools, subways, airports It can be provided in large quantities in public facilities, such as.

In addition, in the fire evacuation oxygen mask according to an embodiment of the present invention, even when all oxygen is exhausted from the can supplying oxygen to the inside of the hood, the wearer can perform self-breathing inside the hood to form a positive pressure. By providing configuration, you can extend the golden time.

In addition, the fire evacuation oxygen mask according to an embodiment of the present invention provides a configuration in which the oxygen supply unit is coupled to the hood in a one-touch method and rotated to discharge oxygen, so that anyone can quickly and easily wear it even in an emergency. make it possible

1 is a perspective view of an oxygen mask for evacuation of a fire according to an embodiment of the present invention.

2 is a perspective view of an oxygen supply unit according to an embodiment of the present invention;

3 is an exploded perspective view of an oxygen supply unit according to an embodiment of the present invention;

4 is a perspective view showing a state in which the oxygen supply unit is coupled to the female coupling unit provided in the supply port according to an embodiment of the present invention;

5 is an exploded perspective view illustrating a state in which the oxygen supply unit and the female coupling unit shown in FIG. 4 are separated;

Figure 6 is a bottom view showing the bottom of the female coupling shown in Figure 5.

7 is a view showing the configuration of a guide groove according to an embodiment of the present invention.

8 is a view showing a state in which a stopper is provided in the guide groove according to an embodiment of the present invention.

9 is a perspective view showing the configuration of an evacuation help module according to an embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but will be embodied in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

Hereinafter, an oxygen mask for evacuation of a fire according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 9 . In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted so as not to obscure the gist of the present invention.

1 is a perspective view of an oxygen mask for evacuation from a fire according to an embodiment of the present invention, FIG. 2 is a perspective view of an oxygen supply unit according to an embodiment of the present invention, and FIG. 3 is an oxygen supply unit according to an embodiment of the present invention 4 is a perspective view showing a state in which the oxygen supply unit is coupled to the female coupling unit provided in the supply port according to an embodiment of the present invention, and FIG. 5 is the oxygen supply unit and the female coupling unit shown in FIG. 4 are separated It is an exploded perspective view showing the finished state, FIG. 6 is a bottom view showing the bottom of the female coupling part shown in FIG. 5, FIG. 7 is a view showing the configuration of a guide groove according to an embodiment of the present invention, and FIG. 8 is this view It is a view showing a state in which a stopper is provided in the guide groove according to an embodiment of the present invention, and FIG. 9 is a perspective view showing the configuration of an evacuation help module according to an embodiment of the present invention.

The oxygen mask for fire evacuation according to an embodiment of the present invention uses only pure oxygen so that the wearer does not suffer from oxygen deficiency symptoms during the time it takes to move from a fire point to a safe evacuation site or a time when a firefighter arrives at a fire place It can be said that it is an invention characterized by supplying to the wearer so that the oxygen concentration does not drop during the golden time.

The fire evacuation oxygen mask 100 as described above is, as shown in FIG. 1 , a hood 110 worn on the wearer's head; and the hood is detachably coupled to a supply port formed in the hood 110 . The oxygen supply unit 200 for supplying oxygen to the inside of the 110; may be included in a large amount.

First, the hood 110 may have a shape that covers the entire wearer's head and face, and may be made of various known protective materials.

For example, the hood 110 may be made of a flexible or stretchable material that is easily deformed irregularly in shape, such as a hood-type gas mask, or may be made of a rigid material that maintains a constant shape even under pressure generated from an external force. .

In addition, a face window 111 is provided at a portion of the hood 110 corresponding to the wearer's eye area, and the face window 111 may also be made of a flexible or rigid transparent material.

Meanwhile, the supply port formed in the hood 110 may be formed in a portion of the hood 110 corresponding to the wearer's mouth as shown in FIG. 1 when the wearer wears the hood 110 . However, the present invention is not limited thereto. For example, when the wearer wears the hood 110, the supply port may be provided in a portion of the hood 110 corresponding to the cheek, head, and neck of the wearer.

A positive pressure is formed inside the hood 110 configured as described above by oxygen supplied from the oxygen supply unit 200 . Then, the wearer may perform self-respiration using the exhaled breath and pure oxygen supplied from the oxygen supply unit 200 .

In order for the internal space of the hood 110 to easily achieve a positive pressure state, and in order for the user to smoothly breathe in the internal space of the hood 110 , when the wearer first puts on the hood 110 , the inner surface It is preferable to be spaced apart from the wearer's face or head by a predetermined distance. Accordingly, the hood 110 preferably has a size and shape spaced apart from the wearer's skin by a predetermined distance, rather than having a size or shape in close contact with the wearer's skin.

The oxygen supply unit 200, as shown in FIGS. 1 to 3, a can 210 filled with compressed oxygen; a male coupling part 220 provided at the upper end of the can 210 and enclosing a nozzle 211 through which compressed oxygen is discharged; A guide groove 230 provided on the outer surface of the male coupling part 220; may include.

The can 210 may have various sizes in consideration of a place where the oxygen mask 100 is provided, an evacuation route, and the like. Similarly, the amount of oxygen stored in the can 210, the degree of oxygen compression, and the amount of oxygen discharge may be set in consideration of a place where the oxygen mask 100 is provided, an evacuation route, and the like.

The male coupling part 220 may have a hollow tube shape surrounding the nozzle 211 and may be referred to as a component directly coupled to the female coupling part 300 to be described later. That is, the male coupling part 220 protects the nozzle 211 formed on the upper end of the can 210 and allows the can 210 to be mounted on the hood 110 .

The guide groove 230 may be formed on the circumferential surface of the male coupling part 220 .

In one embodiment of the present invention, it is shown in the drawing that two guide grooves 230 are formed on the circumferential surface of the male coupling part 220 at a distance from each other.

The oxygen supply unit 200 having the above configuration may be sealed in the pouch together with the hood 110 . In this case, the oxygen supply unit 200 may be sealed in the pouch in a state separated from the hood 110 , or may be sealed in the pouch while connected to the hood 110 . For example, as shown in FIG. 1 , the oxygen supply unit 200 may be sealed in the pouch while being fastened to the female coupling unit 300 provided at the supply port of the hood 110 .

After opening the pouch, the process of fastening the oxygen supply unit 200 to the female coupling unit 300 may be difficult for the elderly or female children. This is because, in the event of a fire, people staying at the place face a panic state. In other words, it is because it is difficult to make a cool and rational judgment in a fire situation. Therefore, it is preferable to seal the pouch in a state in which the oxygen supply unit 200 is coupled to the hood 110 .

On the other hand, as described above, the supply port formed in the hood 110 may be provided with a female coupling part 300 that is rotationally fastened to the male coupling part 220 of the oxygen supply part 200 .

The female coupling part 300 may form an insertion hole 310 (refer to FIG. 6 ) into which the male coupling part 220 may be inserted, as shown in FIGS. 4 to 6 . Accordingly, the male coupling part 220 may be coupled to the female coupling part 300 while being inserted into the insertion hole 310 .

In addition, a protrusion member 320 fastened to the guide groove 230 may be provided on an inner circumferential surface of the female coupling part 300 defining the insertion hole 310 .

The protrusion member 320 may be provided in a number corresponding to the number of guide grooves 230 provided on the circumferential surface of the male coupling part 220 . In one embodiment of the present invention, a pair is provided on the inner peripheral surface of the female coupling part 300 to correspond to the number of guide grooves 230 .

When the male coupling part 220 of the oxygen supply part 200 is rotated in one direction while being inserted into the insertion hole 310 of the female coupling part 300, the protruding member 320 of the female coupling part 310 is the It may be fastened with the guide groove 230 provided on the circumferential surface of the male coupling part 220 .

Therefore, when the wearer rotates the can 210 in one direction, the guide groove 230 is coupled with the protrusion member 320 to be formed in the female coupling part 300 , and oxygen is supplied from the supply port of the hood 110 . It may have a shape that prevents the supply unit 200 from being separated.

The guide groove 230, as shown in FIG. 7, includes a vertical section d1 in which the protruding member 320 moves in the vertical direction; an inclined section (d2) connected to the vertical section (d1) in communication with the protruding member (320) in an inclined direction; a first horizontal section (d3) connected in communication with the inclined section (d2) and in which the protruding member (320) is moved in the horizontal direction; and a second horizontal section (d4) that is communicatively connected to the first horizontal section (d3) while having a width smaller than the width of the first horizontal section (d3) and restricts the movement of the protruding member (320) ; may be included.

The vertical section d1 may be a section in which the protrusion member 320 is vertically inserted and moved when the male coupling part 220 is initially inserted into the insertion hole 310 of the female coupling part 300 . To be more precise, it can be said that the protrusion member 320 is a section in which the protrusion member 320 moves along the height direction of the male coupling part 220 .

The protrusion member 320 disposed in the vertical section d1 cannot be moved in the circumferential direction of the male coupling part 220 . This is because the movement is blocked by the side wall dividing the vertical section d1.

The inclined section d2 may be a section for converting the movement direction of the protruding member 320 inserted into the vertical section d1 to a horizontal direction.

The first horizontal section d3 may be a section in which the protruding member 320 passing through the inclined section d2 moves in the horizontal direction. To be more precise, it can be said that the protrusion member 320 is moved along the circumferential direction of the male coupling part 220 .

The protrusion member 320 disposed in the first horizontal section d3 cannot be moved in the vertical direction. This is because movement is blocked by the upper/lower walls dividing the first horizontal section d3. Therefore, when the protrusion member 320 reaches the first horizontal section d3, the male coupling part 220 is not separated from the female coupling part 300 and can be maintained in a coupled state.

Meanwhile, the width of the first horizontal section d3 may be greater than the width of the protruding member 320 . Accordingly, the male coupling part 220 may maintain a coupled state that is not separated on the female coupling part 300, but the width of the first horizontal section d3 and the width of the protruding member 320 are different from each other. Due to the flying relationship, shaking may occur in the up/down direction.

The second horizontal section d4 may be a section in which the protruding member 320 passing through the first horizontal section d3 is inserted and moved in the horizontal direction, and one end thereof is blocked. That is, the second horizontal section d4 can be said to be a section finally reached by the protruding member.

On the other hand, it can be said that the width of the second horizontal section d4 is smaller than the width of the first horizontal section d3. In addition, the width of the second horizontal section d4 may be equal to or greater than the width of the protruding member 320 . Accordingly, the protrusion member 320 passing through the first horizontal section d3 is inserted in the first horizontal section d3 and moved in the second horizontal section ( It can be moved in d4). For example, the protruding member 320 may be inserted into the second horizontal section d4 in an interference fit manner. On the other hand, a point in the longitudinal direction of the first horizontal section d4 connected in communication with the second horizontal section d4 is gradually increased so that the protruding member 320 can easily enter the second horizontal section d4. It has a narrower shape.

Similarly, the protrusion member 320 may be blocked from moving in the vertical direction by the upper/lower walls dividing the second horizontal section (d4). At this time, as described above, the width of the second horizontal section d4 is smaller than the width of the first horizontal section d4 and is equal to or larger than the width of the protruding member 320, so that the protruding member 320 is When moved to the second horizontal section (d4), the male coupling part 220 can maintain a firmly coupled state without shaking on the female coupling part (300).

That is, when the male coupling part 220 is rotated in one direction while being inserted into the insertion hole 310 of the female coupling part 300 , the protruding member 320 moves in the vertical section d1, the inclined section d2, and the first After sequentially passing through the horizontal section d3, the second horizontal section d4 is reached.

Then, the oxygen supply unit 200 maintains a state firmly coupled to the supply port of the hood 110 .

In addition, when the protrusion member 320 enters the second horizontal section d4, the nozzle 210 of the oxygen supply unit 200 is in contact with the flow path formed in the female coupling unit 300 to discharge oxygen, and thus discharge. The oxygen produced may be introduced into the hood 110 .

For reference, the oxygen supply unit 200 may discharge oxygen using an orifice valve. The fluid discharge method using an orifice valve has a simple structure and low risk of failure, so it can be applied to safety equipment, relief equipment, and protective equipment.

On the other hand, as described above, the oxygen supply unit 200 is sealed in a pouch in a state coupled to the supply port of the hood 110 , and is taken out in an emergency situation such as a fire, and is operated only by the user's one-way rotation operation, so that the Oxygen may be supplied to the inside of the hood 110 .

That is, in an emergency, the male coupling unit 220 of the oxygen supply unit 200 is mounted to the supply port so that the wearer can omit the process of coupling the oxygen supply unit 200 to the supply port of the hood 110 . The oxygen mask 100 may be packaged in a state in which the male coupling unit 220 of the oxygen supply unit 200 is already coupled to the unit 230 .

Accordingly, in a state in which the male coupling part 200 is inserted into the insertion hole 310 of the female coupling part 300, the protruding member 320 is disposed over the inclined section d2 and the first horizontal section d3. The can 210 may be unidirectionally rotated at a predetermined angle so that the can 210 may be rotated.

Then, as shown in FIG. 8, one side of the protruding member 320 is in a state disposed in the first horizontal section d3, and the other side of the protruding member 320 is disposed in the inclined section d2. do. In this state, the oxygen supply unit 200 may be in a state coupled to the supply port of the hood 110 without discharging oxygen.

At this time, it should be prevented that the male coupling portion 220 is rotated in one direction or the other direction. If the oxygen supply unit 200 and the hood 110 are coupled to each other and then the oxygen supply unit 200 rotates in one direction while packaged in a pouch, the oxygen filled in the can 210 is transferred to the hood 110 . Discharge into the internal space occurs. Then, the wearer does not receive oxygen when an actual fire occurs.

Conversely, when the oxygen supply unit 200 and the hood 110 are coupled to each other and then the oxygen supply unit 200 is rotated in the other direction while packaged in a pouch, the can 210 moves from the supply port of the hood 110 . separation occurs. Then, the wearer must perform a process of coupling the oxygen supply 200 to the supply port of the hood 110 when an actual fire occurs. In addition, it is necessary to separately take out the hood 110 and the oxygen supply unit 220 from the inside of the pouch.

Therefore, it is very important not to move the protruding member 320 disposed over the inclined section d2 and the first horizontal section d3 in one direction or the other.

A stopper 232 is provided in the first horizontal section d3 that is in contact with one side of the protruding member 320 and blocks the protruding member 320 from moving to the second horizontal section d4. can

The stopper 232 serves to prevent the male coupling part 220 from being unintentionally rotated in one direction.

The stopper 232 may be formed to protrude from the first horizontal section d3 in the same shape as a speed bump. In addition, the length at which the stopper 232 protrudes from the first horizontal section d3 is naturally shorter than the depth of the guide groove 230 .

A phenomenon in which the oxygen supply unit 200 is unintentionally rotated in one direction to discharge oxygen by the stopper 232 having the above configuration can be prevented.

On the other hand, the protrusion member 320 forming a state in which one side in the longitudinal direction is in contact with the stopper 232 is a stopper 232 by a force that artificially rotates the can 210 of the oxygen supply unit 200 in one direction by the wearer. After riding over it, you can reach the second horizontal section d4.

For reference, the protruding surface of the stopper 232 preferably has a curved shape so that the protruding member 320 can easily pass through the stopper 232 by the force transmitted from the wearer.

A stepped portion 231 may be provided in the inclined section d2 that is in contact with the other side of the protruding member 320 and blocks the protruding member 320 from moving to the vertical section d1.

The stepped portion 231 serves to prevent the male coupling portion 220 from being unintentionally rotated in the other direction, and provides a space in which the other edge portion in the longitudinal direction of the protruding member 320 can be seated. For example, the stepped portion 231 may be formed in a 'L' shape.

Due to the stepped portion 231 having the above configuration, it is possible to prevent the oxygen supply 200 from being unintentionally rotated in the other direction and separated from the hood 110 .

Even when the oxygen supply unit 200 is packaged in a pouch in a state coupled to the supply port of the hood 110 , oxygen is unintentionally discharged from the can 210 by the same configuration as the stepped portion 231 and the stopper 232 . In addition, the can 210 is not separated from the hood 110 .

Therefore, in the oxygen mask 100 according to an embodiment of the present invention, pure oxygen is supplied only by a simple process of rotating the can 210 in one direction while the wearer removes the hood 110 from the pouch and wears it on the face. make it possible to receive

Although specific embodiments according to the present invention have been described so far, various modifications are possible without departing from the scope of the present invention.

For example, as shown in FIG. 9 , an evacuation help module 400 may be provided in the drawstring 112 of the hood 110 .

The evacuation help module 400 has a configuration so that the wearer can be safely moved to an evacuation site in an emergency situation such as a fire, and in addition, a firefighter can easily find the wearer.

That is, the evacuation help module 400 includes a housing 410 mounted on the drawstring 112, an LED lighting unit 420 provided in the housing 410 to help secure the wearer's field of vision, and the housing ( It may be configured to include a speaker 430 provided in 410 to generate an alarm sound and a location tracking sensor (not shown) built in the housing 410 .

The evacuation assistance module 400 having the above configuration may not only serve as a lighting function while the wearer moves, but also notify a firefighter or a third party of their location to request a rescue.

The evacuation assistance module 400 may further include a safety pin 440 as shown in FIG. 9 . The safety pin 440 may be a component that performs ON/OFF control of the LED lighting unit 420, the speaker 430, and the battery unit supplying power to the location tracking sensor.

That is, when the safety pin 440 is coupled to the housing 410, the battery unit is in an OFF state, and when the safety pin 440 is separated from the housing 410, the battery unit is in an ON state, and the LED lighting unit 420 and the speaker Power may be supplied to 430 and the location tracking sensor.

The safety pin 440 may be fixedly connected to the longitudinal end of the drawstring 112 , and the drawstring 112 to prevent a wearer wearing the hood 110 from introducing toxic gas into the interior of the hood 110 . It may be connected to the drawstring 112 and mounted to the housing 410 so as to be separated from the housing 410 in the process of pulling the longitudinal end of the .

Therefore, the wearer can move more safely and quickly to the evacuation site in a disaster situation such as a fire by the evacuation help module 400 having the above configuration.

In addition, the hood 110 may be provided with a pad-type filter.

The pad-type filter is used by the wearer when the supplied oxygen is exhausted, so that it can also be used as a handkerchief. Therefore, the wearer may block the inflow of the toxic gas by covering the respirator after soaking the pad-type filter with water when all the oxygen inside the hood 110 is exhausted. For reference, the pad-type filter may be attached to the front portion of the hood 110 .

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims described below as well as the claims and equivalents.

The present invention can be applied and sold in industrial fields such as safety equipment and lifesaving equipment.

Claims (10)

a hood worn over the wearer's head; and and an oxygen supply unit detachably coupled to a supply port formed in the hood to supply oxygen to the inside of the hood; Oxygen mask for fire evacuation, characterized in that the oxygen supplied to the inside of the hood from the oxygen supply unit makes the inside of the hood in a positive pressure state together with the wearer's exhalation. The method of claim 1, The hood, when written on the wearer's head, has a size and shape that is spaced apart from the wearer's face or head by a predetermined distance so that the inside can achieve a positive pressure state by the pure oxygen supplied by the oxygen supply unit Oxygen mask for fire evacuation, characterized in that. The method of claim 1, The oxygen supply unit, cans filled with compressed oxygen; a male coupling part provided at the upper end of the can and enclosing a nozzle from which compressed oxygen is discharged; and Fire evacuation oxygen mask comprising a; guide groove provided on the outer periphery of the male coupling part. 4. The method of claim 3, In the supply port, A female coupling part rotationally fastened with a male coupling part of the oxygen supply part is provided, The female coupling portion, Oxygen mask for evacuation from fire, characterized in that forming an insertion hole into which the male coupling part can be inserted, and a protrusion member fastened to the guide groove is provided on an inner circumferential surface dividing the insertion hole. 5. The method of claim 4, The guide groove is a vertical section in which the protruding member is moved in a vertical direction; an inclined section communicatively connected to the vertical section and in which the protruding member is moved in an inclined direction; a first horizontal section connected in communication with the inclined section and in which the protruding member is moved in a horizontal direction; and Oxygen mask for fire evacuation comprising a; a second horizontal section that is communicatively connected with the first horizontal section while having a width smaller than the width of the first horizontal section, and restricts the movement of the protruding member . 6. The method of claim 5, The oxygen supply unit is rotated in one direction when a fire occurs while maintaining a state coupled to the female coupling unit provided in the supply port to supply oxygen to the inside of the hood. 7. The method of claim 6, Oxygen mask for evacuation from fire, characterized in that the inclined section is provided with a stepped portion that is in contact with the protruding member and blocks movement of the protruding member to the vertical section. 8. The method of claim 7, Fire evacuation oxygen mask, characterized in that a stopper is provided in the first horizontal section, which is in contact with the protruding member, and blocks the movement of the protruding member to the second horizontal section. 9. The method according to any one of claims 1 to 8, An evacuation help module is provided on the drawstring of the hood to help the wearer evacuate, The evacuation help module is a housing mounted on the drawstring; an LED lighting unit provided in the housing to help secure the wearer's field of vision; a speaker provided in the housing to generate an alarm sound; and Oxygen mask for evacuation of fire, characterized in that it comprises; a position tracking sensor built into the housing. 10. The method of claim 9, The evacuation help module is It further includes; a safety pin that is separated from the housing when the wearer wearing the hood pulls the end of the drawstring. Oxygen mask for fire evacuation, characterized in that it is operated when the safety pin is separated from the housing.

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