Wet smoke mask with increased oxygen generation continuity

Abstract

To provide a wet smoke mask which safely protects the respiratory organs of a mask wearer and has increased continuity of oxygen generation, which can smoothly assist breathing. [Solution] The mask comprises a mask body 10 that is provided in a manner that shields the wearer's respiratory system, and an oxygen generating unit 20 that is provided on the inner surface of the mask body 10. The oxygen generating unit 20 comprises a reaction liquid storage pack 21 that stores a reaction liquid for oxygen generation, and a solidified oxygen generator 22 that is supplied with the reaction liquid stored in the reaction liquid storage pack 21 and causes a chemical reaction related to oxygen generation to release oxygen. The solidified oxygen generator 22 is stored in a sealed state in a sealing member that has multiple holes that serve as paths through which the reaction liquid flows in, and is characterized in that it is divided into a first type solidified oxygen generator and a second type solidified oxygen generator depending on the type stored in the sealing member.

Description

[Technical Field]

[0001] The present invention relates to a wet smoke mask with enhanced oxygen generation continuity, and more specifically to a technology that safely protects the respiratory system of the mask wearer from harmful smoke generated during a fire, and also supplies oxygen generated by the mask's own oxygen generation mechanism to the mask wearer, thereby helping the mask wearer breathe smoothly at the scene of a fire. [Background technology]

[0002] Generally, the primary cause of death in a fire is suffocation due to toxic gases. Therefore, gas masks and smoke masks are provided to protect people from toxic gases, smoke, and harmful substances that are generated in accidents and fires in enclosed spaces, indoor spaces, and underground spaces.

[0003] However, gas masks are expensive for ordinary people to use, and when a fire breaks out, they take a long time to put on and are difficult to wear. The first person to wear a gas mask takes a long time to put on, and even if they are familiar with how to wear it, they are unable to put it on quickly in an emergency situation, and there is a risk of exposure to toxic gases and smoke from the fire while they are still putting it on.

[0004] In an effort to solve the above problems, Korean Patent Registration No. 10-2393243 discloses technology relating to a disaster evacuation and fine dust mask, specifically a disaster evacuation and fine dust mask that not only blocks the inflow of smoke and toxic gases generated during fires and fine dust such as dust generated at industrial sites, and discharges carbon dioxide emitted by the wearer's breathing to the outside, but also ensures visibility from smoke, toxic gases, and dust when evacuating from fires or working at industrial sites.

[0005] However, in the case of the above-mentioned prior art, since it only includes a guide tube body for discharging carbon dioxide emitted by the wearer's breathing to the outside and a check valve for preventing the inflow of external smoke, toxic gases, and fine dust, oxygen supply is not smooth. In addition, it is difficult to wear because the wearer must place their mouth in the guide tube body and then put on the mask by hanging ear bands formed on the mask on their ears. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Korean Patent No. 10-2393243 Summary of the Invention [Problem to be solved by the invention]

[0007] The object of the present invention is to provide a wet smoke mask that safely protects the respiratory system of the mask wearer from harmful smoke generated in the event of a fire, and that has an increased oxygen generation sustainability, thereby helping the mask wearer breathe smoothly at the scene of a fire by supplying oxygen generated by the mask's own oxygen generation mechanism to the mask wearer. [Means for solving the problem]

[0008] To achieve the above object, a wet smoke mask with improved oxygen generation durability according to one embodiment of the present invention includes a mask body that is provided to shield the respiratory system of a wearer, and an oxygen generating unit that is provided on the inner surface of the mask body. The oxygen generating unit includes a reaction liquid storage pack that stores a reaction liquid for oxygen generation, and a solidified oxygen generator that receives the reaction liquid stored in the reaction liquid storage pack and causes a chemical reaction related to oxygen generation to release oxygen. The solidified oxygen generator is stored in a sealed state in a sealing member that has a plurality of holes that serve as paths through which the reaction liquid flows. Depending on the type of storage in the sealing member, the solidified oxygen generator is classified into a first type solidified oxygen generator and a second type solidified oxygen generator.

[0009] The solid oxygen generator has a structure in which the first type solid oxygen generator and the second type solid oxygen generator are separated by an SMS (Spunbond-Meltblown-Spunbond) nonwoven fabric within the sealing member.

[0010] The SMS nonwoven fabric is divided into a first area for storing the first type solidified oxygen generator and a second area for storing the second type solidified oxygen generator. The first type solidified oxygen generator is stored exposed in the first area, and the second type solidified oxygen generator is stored in the second area, sealed with a water-soluble film.

[0011] When the reaction solution is supplied from the reaction solution storage pack to the solid oxygen generator, the reaction solution penetrates into the SMS nonwoven fabric and reacts primarily with the first type solid oxygen generator to release oxygen. The reaction solution then dissolves the water-soluble film sealing the second type solid oxygen generator and then reacts secondarily with the second type solid oxygen generator to release oxygen, thereby creating a physical time lag in the initiation of the chemical reactions related to oxygen generation.

[0012] The oxygen generating unit further includes a porous flexible material disposed between the reaction liquid storage pack and one surface of the sealing member where the solidified oxygen generating material is sealed and stored. The porous flexible material controls the speed and amount of the reaction liquid supplied from the reaction liquid storage pack to the solidified oxygen generating material, thereby stabilizing the chemical reaction for oxygen generation. The reaction liquid storage pack further includes a reaction liquid absorbent made of compressed fiber material on both surfaces, including the front and rear surfaces, which form the outer surfaces of the reaction liquid storage pack.

[0013] The oxygen generating section is provided in a shape and size corresponding to the inner center of the mask body or the inner surface of the mask body, and at least one continuous line of cutout grooves is formed in the center of the reaction liquid storage pack, and the cutout grooves rupture when tensile force is applied from both sides of the mask body, forming a supply path for the reaction liquid along the ruptured site.

[0014] The mask body has ear hooks on both sides, each of which includes a first ear hook and a second ear hook that are placed over the wearer's ears by forming a loop using a band member. The first ear hook has one end of the band member fixed to a first upper end region of the mask body, and the other end of the band member passes through the first lower end region to form a loop. The second ear hook has one end of the band member fixed to a second lower end region of the mask body, and the other end of the band member passes through the second upper end region to form a loop.

[0015] The other end of the first ear hook that has passed through the first lower side end region extends a predetermined length toward the second lower side end region and exists in a temporarily fixed state, and the other end of the second ear hook that has passed through the second upper side end region extends a predetermined length toward the first upper side end region and exists in a temporarily fixed state, and the first extension portion extending from the other end of the first ear hook and the second extension portion extending from the other end of the second ear hook have a structure in which they are joined together by forming a tear line in the reaction liquid storage pack along the extension direction, and when the ear hook portion is pulled to both sides by the wearer, the temporarily fixed state is released and the reaction liquid storage pack ruptures along the tear line, starting a chemical reaction related to the generation of oxygen.

[0016] The first extension portion of the first ear hook and the second extension portion of the second ear hook further include a stopper provided to limit the extent to which the first extension portion and the second extension portion are pulled out, a waterproof cap provided on both sides of the ear hook portion where the loop portion is formed and having a stopper accommodating groove to limit the stopper from coming out, and a reaction liquid leakage prevention member located between the stopper and the waterproof cap to prevent the reaction liquid from leaking out.

[0017] The exhaust section includes an inner housing having a structure to be provided inside the mask body, a stepped portion that fits into the exhaust hole, a protrusion of a predetermined length formed in a region of the center, and a first exhaust path that is shaped to penetrate radially from the protrusion; a valve member made of a flexible material and having a structure to be provided outside the mask body, a region of the center having a connection hole that corresponds to the protrusion of the inner housing, and the center is fixed by fitting into the protrusion, and the outer shell that is not fixed moves to fit tightly against or separate from the inner housing depending on the wearer's breathing; and an outer housing that forms a movement space for the valve member and has a second exhaust path formed to discharge the wearer's exhaled air discharged through the first exhaust path to the outside. [Effects of the Invention]

[0018] According to the present invention, a mask can be provided that safely protects the respiratory system of the mask wearer from harmful smoke generated in the event of a fire, and also supplies oxygen generated by the oxygen generation mechanism within the mask itself to the mask wearer, thereby helping the mask wearer to breathe smoothly at the scene of a fire, thereby promoting the health of the mask wearer's respiratory system.

[0019] Furthermore, according to the present invention, the convenience of initiating a chemical reaction for generating oxygen is increased, and in an emergency situation, a mask can be quickly put on and oxygen can be supplied at the same time as putting on the mask.

[0020] Furthermore, according to the present invention, by including another configuration in which there is a physical time lag when the chemical reaction between the solidified oxygen generator and the reaction liquid is initiated, the duration of oxygen generation is extended, allowing the wearer to breathe smoothly for a long period of time. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is a diagram showing the outer shape of a wet smoke mask with increased oxygen generation continuity according to one embodiment of the present invention. [Figure 2]FIG. 2 is a diagram showing the inner shape of a wet smoke mask with increased oxygen generation continuity according to one embodiment of the present invention. [Figure 3] FIG. 3 is a schematic structural diagram of the inner structure of a wet smoke mask with increased oxygen generation continuity according to one embodiment of the present invention. [Figure 4] FIG. 4 is a conceptual diagram showing the outflow of a reaction liquid from a reaction liquid storage pack according to one embodiment of the present invention. [Figure 5] FIG. 5 is a detailed structural diagram of a wet smoke mask with increased oxygen generation continuity according to one embodiment of the present invention. [Figure 6] FIG. 6 is a detailed structural diagram of a solid oxygen generator according to one embodiment of the present invention. [Figure 7] FIG. 7 is a diagram showing the initiation of a chemical reaction between the reaction liquid storage pack and the solidified oxygen generating material according to one embodiment of the present invention. [Figure 8] FIG. 8 is a conceptual diagram showing the outflow of reaction liquid from a reaction liquid storage pack according to another embodiment of the present invention. [Figure 9] FIG. 9 is a diagram showing the configuration of an exhaust filter according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] Various embodiments and / or aspects are described below with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to facilitate a general understanding of one or more aspects. However, those skilled in the art will recognize that these aspects may be practiced without such specific details. The following description and the accompanying drawings set forth certain exemplary aspects of one or more aspects in detail. However, such aspects are illustrative, and only a portion of various methods may be utilized in accordance with the principles of the various aspects, and the description is intended to include all such aspects and their equivalents.

[0023] As used herein, "embodiments," "examples," "aspects," "exemplary," and the like may not be construed as constituting any described aspect or design as being better or advantageous over other aspects or designs.

[0024] Additionally, the terms "comprise" and / or "comprising" should be understood to mean that the feature and / or component is present, but not to exclude the presence or addition of one or more other features, components and / or groups thereof.

[0025] Furthermore, terms including ordinal numbers, such as "first," "second," etc., are used to describe various elements, but the elements are not limited by these terms. These terms are used only to distinguish one element from another. For example, a first element can be referred to as a "second element," and similarly, a second element can be referred to as a "first element," without departing from the scope of the present invention. The term "and / or" includes a combination of multiple related listed items or any of multiple related listed items.

[0026] Furthermore, unless otherwise defined in the embodiments of the present invention, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the related art, and should not be interpreted as idealized or overly formal unless explicitly defined in the embodiments of the present invention.

[0027] The present invention relates to a wet smoke mask with enhanced oxygen generation continuity, and specifically, an object of the present invention is to provide a wet smoke mask with enhanced oxygen generation continuity that safely protects the respiratory system of the mask wearer from harmful smoke generated in the event of a fire, and also supplies oxygen generated by the oxygen generation mechanism of the mask itself to the mask wearer, thereby helping the mask wearer to breathe smoothly at the scene of a fire.

[0028] Hereinafter, specific descriptions of the present invention for achieving the above-mentioned object will be described with reference to the accompanying drawings, and multiple drawings may be referenced simultaneously to explain one or more technical features or components constituting the invention.

[0029] First, the present invention will be described with reference to FIG. 1 of the accompanying drawings, which shows the outer shape of the wet smoke mask with enhanced oxygen generation continuity of the present invention. The present invention includes a mask body 10 that is provided in a manner that shields the respiratory tract of the wearer.

[0030] 1, the mask body 10 is provided in a shape that shields the wearer's nose and mouth. Preferably, the mask body 10 is made of a flame-retardant and non-breathable material, has a shape that shields the wearer's respiratory system, includes a front portion 10F, and extension portions that extend from the upper and lower portions of the front portion 10F to form a predetermined contact surface along the contours of the wearer's face, and has an exhaust hole 10H formed in one area of ​​the front portion 10F for exhaust.

[0031] In one embodiment, the material of the mask body 10 referred to in the present invention can be a flame-retardant nonwoven material, or a material such as polyethylene or polypropylene that has excellent heat resistance, chemical resistance, and durability, or an aluminum flame-resistant flame-retardant material fabric that is a fabric that is difficult to burn using an aluminum material.

[0032] This is understood to be a configuration to prevent smoke containing harmful gases from the fire from entering the respiratory system of the mask wearer in the event of a fire. Generally, such flame-retardant materials do not ensure breathability, so by providing an exhaust section, the wearer's exhaled air can be discharged to the outside. A detailed explanation of this exhaust section will be given later.

[0033] Meanwhile, the mask body 10 of the present invention is shown in FIG. 1(a) in a state before being worn by a wearer, and in FIG. 1(b) in a state after being unfolded for wearing.

[0034] That is, as described above, the mask body 10 of the present invention is provided in a form including a front portion 10F, and an upper extension surface 10T and a lower extension surface 10B extending upward and downward from the front portion 10F. Although not shown in FIG. 1, these upper extension surface 10T and lower extension surface 10B are formed with guidelines that guide the unfolding of the mask, thereby helping the wearer to wear the mask correctly.

[0035] In addition, the upper extension surface 10T and the lower extension surface 10B have gentle bend lines formed at their ends, so that when a wearer unfolds the mask body 10 to wear it, the ends of the upper extension surface 10T and the lower extension surface 10B form contact surfaces with the wearer's face, and a silicone-based contact member 201 is applied along the entire contact surface or along the edge line of the contact surface to better fit the mask body 10 to the face where the wearer's respiratory system is located. In particular, the silicone-based contact member 201 has unique elasticity, allowing it to fit tightly along the wearer's facial bend lines without floating when the wearer puts on the mask body 10, eliminating any gap between the mask body 10 and the wearer's facial skin, thereby facilitating proper mask wearing and further improving the effectiveness of blocking harmful external air.

[0036] In addition, as a more preferred embodiment of the present invention, a nose support portion is formed by incorporating a wire 101 that can be deformed by an external force from the wearer in a region of the upper extension surface 10T of the mask body 10, which corresponds to the nose area of ​​the wearer. By providing such a nose support portion, when the wearer puts on the mask, the wire 101 of the nose support portion is bent and deformed to fit the wearer's nose, thereby fitting the mask body 10 to the wearer's nose and minimizing the inflow of smoke from a fire into the mask.

[0037] In one embodiment, the mask body 10 is formed with ear loops 30 on both sides, including a first ear loop and a second ear loop that are placed over the wearer's ears. Here, the ear loops 30 are made of a material with a predetermined elasticity, such as a band made of an extensible material, to help the mask body 10 fit snugly, but the present invention is not limited thereto.

[0038] Next, the present invention includes an exhaust portion 40 that is coupled to the circular exhaust hole 10H formed in the mask body 10 and allows the wearer's exhaled air to be exhausted to the outside.

[0039] For a more detailed explanation of the exhaust unit 40, please also refer to Figure 9. Figure 9(a) shows an exploded perspective view of the exhaust unit 40, Figure 9(b) shows an example of the combination of the inner housing 401 and the valve member 402, and Figure 9(c) shows an example of the inner housing 401, the valve member 402, and the outer housing 403 being combined together.

[0040] As described above, the exhaust unit 40 of the present invention includes, as its main components, the inner housing 401, the valve member 402, and the outer housing 403.

[0041] Here, the inner housing 401 has a structure that is provided inside the mask body 10, and is provided with a stepped portion that fits into the exhaust hole 10H, and is characterized in that a protrusion 4011 of a predetermined length is formed in one area of ​​the center, and a first exhaust path 401H is formed in a shape that penetrates radially based on the protrusion 4011.

[0042] In one embodiment, the inner housing 401 is formed to a size corresponding to the circular exhaust hole 10H, and is provided in a shape having a step portion and a protrusion 4011 as shown in (a) of Figure 9, so that a first exhaust path 401H is formed in a shape that penetrates radially from the protrusion 4011, thereby discharging the breath taken in by the wearer.

[0043] Furthermore, in the present invention, the main component of the exhaust section 40 includes a valve member 402 that is made of a flexible material and has a structure that is provided on the outside of the mask body 10, and has a region in the center that is provided with a connection hole 4021 that corresponds to the protrusion 4011 of the inner housing 401, and the center is fixed by fitting into the protrusion 4011, and the outer shell part that is not fixed behaves so as to adhere to or separate from the inner housing 401 as the wearer breathes.

[0044] Here, the valve member 402 is provided in a shape corresponding to the shape of the exhaust hole 10H (i.e., a circular shape), and is provided in the form of a thin film that blocks the first exhaust path 401H formed in the inner housing 401.

[0045] As a result, when the wearer of the mask breathes, the outer shell portion, excluding the fixed central portion, can move in a state of being in close contact with or separated from the inner housing 401. In one embodiment, when the wearer of the mask inhales, the outer shell portion of the valve member 402 is drawn toward the inner housing 401 as the wearer inhales, and is in complete contact with the first exhaust path 401H formed in the inner housing 401, thereby blocking external smoke and harmful substances from entering the mask body 10. When the wearer of the mask exhales, the outer shell portion of the valve member 402 moves away from the inner housing 401 as the wearer exhales, forming a predetermined separated space, thereby allowing the wearer's exhaled breath to be discharged through the first exhaust path 401H formed in the inner housing 401.

[0046] Meanwhile, the exhaust unit 40 of the present invention further includes an outer housing 403 having a second exhaust path 403H formed therein, which restricts the movement space of the valve member 402 and allows the wearer's exhaled breath, which is discharged via the first exhaust path 401H, to be discharged to the outside. By being integrally connected to the inner housing 401, the exhaust unit 40 is firmly installed, and the valve member 402 is confined within the restricted space formed by the inner housing 401 and the outer housing 403, preventing the valve member 402 from escaping to the outside. The installation of such an exhaust unit 40 helps the mask wearer to breathe more easily.

[0047] On the other hand, the present invention has a feature in that an oxygen generating section 20 is provided on the inner surface of the mask body 10, which helps the mask wearer to breathe smoothly at the scene of a fire or the like.

[0048] Explaining more specifically with reference to FIG. 3, the oxygen generating unit 20 mainly includes a reaction liquid storage pack 21 that stores a reaction liquid for oxygen generation, and a solidified oxygen generator (SOC) that receives the reaction liquid from the reaction liquid storage pack 21 and releases oxygen by causing a chemical reaction related to oxygen generation.

[0049] Here, the solid oxygen generator (SOC) reacts with the reaction liquid to generate oxygen, and may be prepared by mixing an oxidizer containing at least one of potassium nitrate (KO2) and sodium peroxide (Na2O2), a stabilizer containing at least one or more of potassium hydroxide (Ca(OH)2), aluminum hydroxide (Al(OH)3), and magnesium hydroxide (Mg(OH)2), silica gel, and carrageenan in a predetermined ratio.

[0050] On the other hand, potassium nitrate exists as a yellow solid and is produced when potassium is heated in a glass tube with dry air passing through it for a long period of time. It reacts with water to release oxygen and produce potassium hydroxide (KOH) (see reaction scheme 1), which is known as a strong oxidizing agent.

[0051] [ka]

[0052] Sodium peroxide, known as sodium peroxide or sodium dioxide, exists in the form of yellow-white granules or powder. It functions as an oxidizing agent by reacting with water to produce sodium hydroxide (NaOH) and oxygen (see reaction scheme 2).

[0053] [ka]

[0054] Therefore, in the present invention, it is preferable to understand that oxygen can be generated by the reaction of the solidified oxygen generating material with distilled water (H2O), which is the reaction liquid contained in the reaction liquid storage pack.

[0055] Meanwhile, the solid oxygen generator (SOC) of the present invention contains a stabilizer composed of an alkaline earth metal hydroxide, which is one or more selected from potassium hydroxide (Ca(OH)2), aluminum hydroxide (Al(OH)3), and magnesium hydroxide (Mg(OH)2), in order to stabilize the reactivity when the oxidizing agents potassium nitrate and sodium peroxide react with the reactants.

[0056] Potassium hydroxide is a white powder basic compound that is poorly soluble in water (only 0.82g dissolves in 1L of water), but has a high degree of ionization (dissociation). For this reason, potassium hydroxide dissolved in water exhibits strong basicity with a pH of about 12.5.

[0057] On the other hand, aluminum hydroxide is an amphoteric hydroxide of aluminum, which generates aluminum salt when reacting with acid and aluminate when reacting with alkali. In particular, when it comes into contact with water for a long time, it turns into a gel, and aluminum hydroxide in the gel state has strong adsorption properties, demonstrating its strong adsorption properties.

[0058] Magnesium hydroxide exists in nature as hydrotalcite, and when magnesium salts are treated with alkali hydroxide, a colorless colloidal precipitate is produced. When the solid is left in the air, it absorbs carbon dioxide and releases magnesium carbonate, making it useful for treating carbon dioxide.

[0059] Meanwhile, the solid oxygen generator (SOC) of the present invention includes silica gel and carrageenan, which have moisture-absorbing properties, for absorbing moisture generated during oxygen generation by a chemical reaction between the oxidizer and stabilizer constituting the solid oxygen generator (SOC) and distilled water (HO) as a reaction liquid, as described above.

[0060] Here, the silica gel is a glossy granular porous material whose main component is silicon dioxide (SiO2), and its porous structure makes it have a surface area of ​​about 800 m2. 2 / g, which is very wide and has excellent moisture absorption effect. The minute pores on the surface of silica gel provide spaces for absorbing moisture, and can function as adsorbents of moisture in the air.

[0061] Carrageenan is a polysaccharide extracted from red algae (a type of seaweed that lives in coastal waters and is reddish or purple in color) and is widely used as a thickener, stabilizer, and gelling agent. It has the property of gelling when it absorbs water, and can therefore function to retain water and prevent it from being released.

[0062] Therefore, the solid oxygen generator (SOC) of the present invention contains silica gel and carrageenan that absorb moisture, thereby making it possible to remove the moisture generated by the chemical reaction between the solid oxygen generator (SOC) and the reaction liquid, thereby preventing the inside of the oxygen generating unit from becoming hot due to the moisture generated by the chemical reaction, and thereby preventing low-temperature burns.

[0063] The oxygen generating unit 20 is provided in the center of the inside of the mask body 10 or in a shape and size corresponding to the inner surface of the mask body 10 and is covered with a Tyvek base material 220 .

[0064] Tyvek is a synthetic material made of high-density polyethylene fibers that are bound together without a binder, forming fine pores that allow gases like water vapor to pass through but prevent water and other liquids from passing through. It also has a continuous long-fiber structure that provides its own microbial barrier function, blocking hazardous substances like asbestos, mold, fiberglass, and lead, and is highly durable and resilient.

[0065] That is, in the present invention, by forming the exterior of the oxygen generating unit 20 using such a Tyvek material, when oxygen is supplied by the chemical reaction between the reaction liquid and the solidified oxygen generator (SOC), the generated oxygen is provided to the respiratory system of the mask wearer, but the reaction liquid remains within the Tyvek material, fundamentally preventing the reaction liquid from coming into direct contact with the wearer and causing discomfort.

[0066] In one embodiment, the reaction liquid storage pack 21 of the present invention is a means for storing a predetermined reaction liquid (for example, water), and one side that adheres to the inner surface of the mask body 10 is made of a vinyl material, and the other side that faces the wearer's respiratory system is made of a PVC composite material.

[0067] Here, the PVC composite material may be made of PVC resin, which has excellent durability, water resistance, and processability, mixed with calcium carbonate (stone powder) to improve strength. Such a PVC composite material exhibits greater durability than a simple PVC material, and is particularly excellent in durability against vertical pressure, allowing for stable storage of the reaction liquid stored therein.

[0068] In particular, the PVC composite material as described above provides hard durability and is less flexible than a simple PVC material, so that when a tensile force is applied to both sides of the reaction liquid storage pack 21, it bursts, and a supply path for the reaction liquid can be easily formed along the ruptured portion.

[0069] In a more preferred embodiment of the present invention, one or more cutout grooves 211 are formed in a continuous line in the center of the other surface of the reaction liquid storage pack 21 made of a PVC composite material, so that when tensile force is applied from both sides of the reaction liquid storage pack 21, stress due to the tensile force is concentrated in the cutout grooves 211, thereby forming a reaction liquid supply path along the set rupture site.

[0070] Specifically, referring to FIG. 4, the reaction liquid storage pack 21 has one or more continuous cutout grooves 211 formed on the other side corresponding to the wearer's respiratory system. When the wearer holds both sides of the reaction liquid storage pack 21 of the oxygen generating unit 20 in the shape shown in FIG. 4(a) and folds the cutout grooves 211 at least once, a tensile force is applied to the cutout grooves 211, which exist in the state shown in FIG. 4(b), causing the cutout grooves 211 to rupture as shown in FIG. 4(c). The reaction liquid stored in the reaction liquid storage pack 21 flows out along the ruptured portion and comes into contact with a solidified oxygen generator (SOC) described later, thereby initiating the oxygen generating reaction.

[0071] Here, as shown schematically in FIG. 4, it is preferable that the reaction liquid storage pack 21 includes a reaction liquid absorbent 210 made of compressed fiber material on at least one of its outer surfaces (most preferably both surfaces including the front and rear surfaces). Specifically, the reaction liquid absorbent 210 made of compressed fiber material can be at least one of felt, cotton, nonwoven fabric, and compressed cotton, or a mixed material obtained by treating cellulose with sodium hydroxide to make a viscous liquid, then cutting it into fine fibers, which are then coagulated with sulfuric acid and fixed into a fibrous form, and mixing it with viscose rayon. These compressed fiber materials not only have gaps and pores between the fibers that can absorb and retain water, but also have chemical affinity with water, so they have the property of easily absorbing water and can store water for a long time, which helps to extend the contact time with the solidified oxygen generating material (SOC).

[0072] Meanwhile, the solid oxygen generator (SOC) is stored in a sealing member 222 having a plurality of holes formed therein as a path through which the reaction solution flows, and is classified into a first type solid oxygen generator and a second type solid oxygen generator according to the way in which it is stored inside the sealing member 222.

[0073] Here, the sealing member 222 refers to an aluminum foil, and it is understood that this aluminum foil functions to prevent the solid oxygen generating material (SOC) stored therein from chemically reacting with external environmental elements at an undesired time. It is preferable that this aluminum foil has one or more circular holes 222H to form a path for the reaction liquid to flow in and a path for providing oxygen generated by the chemical reaction related to oxygen generation to the respiratory system of the mask wearer.

[0074] Preferably, the present invention is characterized in that the first and second types of solidified oxygen generators (SOC) are separated by a SMS (Spunbond-Meltblown-Spunbond) nonwoven fabric inside the sealing member 222. The SMS nonwoven fabric 223 refers to a three-layer nonwoven fabric that provides excellent filtering performance by forming a thin and dense layer between a spunbond material made by dissolving a polymeric material such as polypropylene and drawing it into fibers, and then drawing out fine fibers of a polymeric material called meltblown at high temperature between the spunbond material.

[0075] The SMS nonwoven fabric 223 has a structure for packing the solid oxygen generator (SOC) that substantially undergoes an oxygen-generating chemical reaction with the reaction solution, thereby protecting the solid oxygen generator (SOC) from external moisture or impact and preventing the solid oxygen generator (SOC) from suddenly coming into contact with the reaction solution and causing an explosive reaction. In particular, when the reaction solution is supplied from the reaction solution storage pack 21, the dense nonwoven fabric structure allows the reaction solution to be uniformly dispersed around the solid oxygen generator 22, thereby ensuring consistent and stable oxygen generation. In other words, in the present invention, the provision of the SMS nonwoven fabric 223 allows for physical stability of the solid oxygen generator (SOC) and smooth control of the chemical reaction.

[0076] In a more preferred embodiment, the SMS nonwoven fabric 223 is divided into a first region 223b for storing the first type of solidified oxygen generator and a second region 223a for storing the second type of solidified oxygen generator.

[0077] That is, as shown in Figures 6(a), (b), and (c), the internal structure of the SMS nonwoven fabric 223 is understood to have a structure in which at least one partition allows the first type solidified oxygen generator and the second type solidified oxygen generator to be stored in separate spaces, where the first type solidified oxygen generator is stored exposed in the first area 223b, and the second type solidified oxygen generator is stored in the second area 223a, sealed in a water-soluble film 2231 made of a predetermined material.

[0078] The internal structure of the SMS nonwoven fabric 223 is understood to be such that, when the reaction liquid is supplied from the reaction liquid storage pack 21 to the solid oxygen generator (SOC), the reaction liquid penetrates into the SMS nonwoven fabric 223 and reacts primarily with the first type solid oxygen generator to release oxygen to the respiratory system of the wearer of the mask, and then the reaction liquid dissolves the water-soluble film or water-soluble coated paper sealing the second type solid oxygen generator and then reacts secondarily with the second type solid oxygen generator to release the generated oxygen, thereby creating a physical time lag in the start of the chemical reaction related to oxygen generation and increasing the sustainability of oxygen generation.

[0079] Meanwhile, the water-soluble film 2231 is made of, for example, polyvinyl alcohol (PVOH), which is a polymer that is easily dissolved in water and can be completely decomposed by microorganisms after dissolving in water. The film is thin and has uniform quality, is harmless to the human body, and packs a portion of the solid oxygen generator (SOC) to increase the continuity of oxygen generation. The water-soluble film 2231 delays the chemical reaction of the solid oxygen generator (SOC) packed inside while the water-soluble film 2231 dissolves, thereby increasing the continuity of oxygen generation. In addition, the water-soluble film 2231 has better moisture and oxygen barrier properties and durability than a simple packing means based on aluminum material, allowing the storage of the solid oxygen generator to be extended.

[0080] In another embodiment of the present invention, the water-soluble film 2231 may be replaced with at least one of a natural cellulose-based film, such as a highly biodegradable carboxymethyl cellulose film (CMC film), and an alginate film based on a natural polymer extracted from seaweed, but the present invention is not limited thereto.

[0081] In another embodiment of the present invention, which is not shown in the accompanying drawings, the solid oxygen generator (SOC) includes a first type solid oxygen generator provided as an exposed film, and a plurality of second type solid oxygen generators packed in different water-soluble films 2231, and the plurality of second type solid oxygen generators are packed in different water-soluble films 2231 with different dissolution times, thereby further increasing the durability of oxygen generation.

[0082] For example, a polyvinyl alcohol-based film is more easily dissolved in water than carboxymethyl cellulose, which dissolves slowly in water, and there is a time difference between the time it takes for the film to dissolve in the reaction solution. The present invention utilizes this time difference in dissolution to extend the time of the chemical reaction related to oxygen generation, thereby providing the effect of sustaining fresh oxygen supply to the mask wearer for a long period of time.

[0083] Next, as shown in FIG. 7, in the present invention, a more preferable embodiment of the oxygen generating unit 20 includes a porous flexible material 221 disposed between the reaction liquid storage pack 21 and one surface of a sealing member 222 where the solidified oxygen generating material (SOC) is sealed and stored.

[0084] In one embodiment, the porous flexible material 221 is a material similar to the reaction liquid absorbing material 210, and has a porous structure that includes many micropores to allow the movement of liquids and gases, and can be understood as a material that maintains its physical shape even when bent or pressed.

[0085] For example, materials such as compressed cotton, cotton, and nonwoven fabric are available. In the present invention, such porous flexible material 221 is placed between the reaction liquid storage pack 21 and the sealing member 222 to hold a certain portion of the reaction liquid transferred from the reaction liquid storage pack 21, thereby preventing the reaction liquid from being excessively supplied to the sealing member 222 (i.e., aluminum foil).

[0086] In particular, such porous flexible material 221 holds a certain portion of the reaction liquid transferred from the reaction liquid storage pack 21 to the solid oxygen generator (SOC), thereby extending the duration of oxygen generation, and also disperses the reaction liquid uniformly over the large surface area of ​​the porous flexible material 221 through capillary action. As a result, the speed, area, and amount of the reaction liquid transferred to the solid oxygen generator (SOC) can be controlled, thereby stabilizing the chemical reaction related to oxygen generation.

[0087] In addition, as shown in FIG. 8, the mask body 10 of the present invention includes an ear loop portion 30 including a first ear loop and a second ear loop that are attached to both ears of the wearer by forming a loop portion using a band member on both sides.

[0088] However, the first ear hook is characterized in that after one end of the band member is fixed to the first side upper end region of the mask body 10, the other end of the band member passes through the first side lower end region to form a loop portion, and the second ear hook is characterized in that after one end of the band member is fixed to the second side lower end region of the mask body 10, the other end of the band member passes through the second side upper end region to form a loop portion.

[0089] Here, the first ear hook is understood to be an ear hook portion formed on the left side of the mask body 10, and the second ear hook is understood as an ear hook portion formed on the right side of the mask body 10. Therefore, the first ear hook is understood to be a band member that passes from the upper end of the left side to the lower end of the left side, forming a loop portion, and the second ear hook is understood to be a band member that passes from the lower end of the right side to the upper end of the right side, forming a loop portion.

[0090] In addition, in the present invention, the other end of the first ear hook that has passed through the first lower side end region extends a predetermined length toward the second lower side end region and exists in a temporarily fixed state, and the other end of the second ear hook that has passed through the second upper side end region extends a predetermined length toward the first upper side end region and exists in a temporarily fixed state, and the first extension portion extending from the other end of the first ear hook and the second extension portion extending from the other end of the second ear hook have a structure in which they are joined together by forming a cutting line in the reaction liquid storage pack 21 along the extension direction.

[0091] That is, when the wearer pulls the ear hook portion 30, which includes the first ear hook and the second ear hook, to both sides to put on the mask, the temporarily fixed state of the first extension portion of the first ear hook and the second extension portion of the second ear hook is released, and the structure is such that the reaction liquid storage pack 21 bursts along the cutting line, causing the reaction liquid to flow out and move to the solidified oxygen generator (SOC) side, thereby inducing the start of a chemical reaction related to oxygen generation.

[0092] In addition, as a preferred embodiment of the present invention, the first extension of the first ear hook and the second extension of the second ear hook include stoppers 31 to limit the extent to which the first extension and the second extension can be pulled out, since if the first extension and the second extension are pulled out too far, it will be difficult for the wearer to fit the mask closely to their face.

[0093] Here, the stopper 31 may be a separate stopper member, or a fixing knot may be formed in a region of the first extension and the second extension to limit the extent to which the mask can be pulled out in an economical and simple manner.

[0094] In addition, the present invention further includes waterproof caps provided on both sides of the ear hook portion 30 where the loop portion is formed, and having a storage groove 321 in the stopper 31 to prevent the stopper 31 from coming off the outside.

[0095] That is, when the wearer applies a pulling force to at least one ear loop of the ear loop portion 30 of the mask, the stopper 31 is pulled in the direction of the pulling force and is accommodated in the accommodation groove 321 of the stopper 31 provided in the waterproof cap, thereby initiating the oxygen generating reaction while preventing the reaction liquid in the reaction liquid storage pack 21 from leaking out, and expanding the ring portion to an appropriate length, thereby improving the comfort of the wearer when wearing the mask.

[0096] In addition, a reaction liquid leakage prevention member 322 is further included between the stopper 31 and the waterproof cap 32 to further maximize the effect of preventing the reaction liquid from leaking out. The reaction liquid leakage prevention member 322 is preferably made of a material with excellent moisture absorption and flexibility, for example, a material including at least one of polyurethane foam, melamine foam, cellulose sponge, and PE / PP-based sponge. In the most preferred embodiment, one surface of the reaction liquid leakage prevention member 322 (the surface opposite to the contact surface of the stopper 31) is treated with a silicone coating to prevent the reaction liquid from penetrating into the extracted ear hook portion 30.

[0097] That is, according to one embodiment of the present invention described above, it is possible to provide a mask that safely protects the respiratory system of the mask wearer from harmful smoke generated in the event of a fire, and also supplies oxygen generated by the oxygen generation mechanism in the mask itself to the mask wearer, thereby smoothly helping the mask wearer breathe at the scene of a fire and promoting the health of the mask wearer's respiratory system.

[0098] Furthermore, according to one embodiment of the present invention, the convenience of initiating a chemical reaction related to oxygen generation is increased, and in an emergency situation, it is possible to quickly put on a mask and receive oxygen at the same time as putting on the mask.

[0099] Furthermore, according to one embodiment of the present invention, by including another configuration in which there is a physical time lag when the chemical reaction between the solid oxygen generator (SOC) and the reaction liquid is initiated, the duration of oxygen generation is extended, allowing the wearer to breathe smoothly for a long period of time.

[0100] Although the present invention has been described above with reference to the illustrative embodiments and drawings, those skilled in the art will understand that various modifications and variations can be made to the above description. The terms "comprise," "constitute," or "have" used above mean that other elements are inherently included unless otherwise specified, and therefore should be interpreted as including other elements, not excluding other elements. The scope of protection of the present invention should be interpreted based on the following claims, and all technical ideas within the scope of the claims should be interpreted as being included in the scope of the present invention. [Explanation of symbols]

[0101] Mask body...10, lower extension surface...10B, front surface...10F, exhaust hole...10H, upper extension surface...10T, oxygen generating section...20, reaction liquid storage pack...21, solidified oxygen generator...22, ear hooks...30, stopper...31, waterproof cap...32, exhaust section...40, wire...101, adhesive member...201, reaction liquid absorbent material 210, cutout groove 211, Tyvek base material 220, porous flexible material...221, sealing member...222, SMS nonwoven fabric...223, storage groove...321, reaction liquid leakage prevention member...322, valve member...402, outer housing...403

Claims

1. a mask body made of a flame-retardant and non-breathable material, the shape of which shields the respiratory system of a wearer, the mask body including a front portion and extension portions extending from the upper and lower portions of the front portion to form a predetermined contact surface along the contour of the wearer's face, the front portion having an exhaust hole formed in one region thereof for exhaust; an exhaust portion coupled to an exhaust hole formed in the mask body and configured to exhaust the wearer's exhaled air to the outside; an oxygen generating section provided on the inner surface of the mask body, which supplies oxygen generated by a chemical reaction related to oxygen generation to the wearer; The oxygen generating unit is a reaction liquid storage pack storing a reaction liquid for oxygen generation; a solid oxygen generator that receives the reaction liquid from the reaction liquid storage pack and releases oxygen by causing a chemical reaction related to oxygen generation, The solid oxygen generator is The wet smoke mask with increased oxygen generation durability is stored in a sealed state in a sealing member having a plurality of holes formed therein, which serve as paths for the reaction liquid to flow in, and is divided into a first type solidified oxygen generator and a second type solidified oxygen generator depending on the type stored in the sealing member.

2. The solid oxygen generator is 2. The wet smoke mask with enhanced oxygen generation continuity according to claim 1, wherein the first type solidified oxygen generator and the second type solidified oxygen generator are separated by an SMS (Spunbond-Meltblown-Spunbond) nonwoven fabric within the sealing member.

3. The SMS nonwoven fabric is divided into a first region in which the first type solidified oxygen generator is stored and a second region in which the second type solidified oxygen generator is stored, The first type solidified oxygen generating material is stored exposed to the first area, 3. The wet smoke mask with increased oxygen generation durability according to claim 2, wherein the second type solidified oxygen generator is stored in the second area and sealed with a water-soluble film or water-soluble coated paper.

4. When the reaction liquid is supplied from the reaction liquid storage pack to the solidified oxygen generating material, The reaction solution permeates into the SMS nonwoven fabric and undergoes a primary chemical reaction with the first type solidified oxygen generating material to release oxygen; 4. The wet smoke mask with improved oxygen generation durability according to claim 3, wherein the reaction solution dissolves the water-soluble film or water-soluble coated paper sealing the second type solidified oxygen generator, and then undergoes a secondary chemical reaction with the second type solidified oxygen generator to release oxygen, thereby creating a physical time lag in the start of the chemical reaction related to oxygen generation.

5. the oxygen generating unit further includes a porous flexible material disposed between the reaction liquid storage pack and one surface of a sealing member where the solidified oxygen generating material is sealed and stored; the porous flexible material controls the rate and amount of the reaction liquid supplied from the reaction liquid storage pack to the solidified oxygen generator, thereby stabilizing the chemical reaction related to the oxygen generation; 2. The wet smoke mask with increased oxygen generation continuity according to claim 1, further comprising a reaction liquid absorbing material made of compressed fiber material on both sides, including the front and rear sides, which form the outer surfaces of the reaction liquid storage pack.

6. the oxygen generating unit is provided in a shape and size corresponding to the inner central portion of the mask body or the inner surface of the mask body, 2. The wet smoke mask with increased oxygen generation durability according to claim 1, wherein at least one continuous groove is formed in the center of the reaction liquid storage pack, and the groove ruptures when a tensile force is applied from both sides of the mask body, forming a supply path for the reaction liquid along the ruptured portion.

7. On both sides of the mask body, The ear hook portion includes a first ear hook and a second ear hook that are hung on both ears of a wearer by forming a loop portion using a band member, 2. The wet smoke mask with enhanced oxygen generation durability according to claim 1, wherein the first ear loop has one end of the band member fixed to the first upper end region of the mask body, and the other end of the band member passes through the first lower end region of the mask body to form a loop, and the second ear loop has one end of the band member fixed to the second lower end region of the mask body, and the other end of the band member passes through the second upper end region of the mask body to form a loop.

8. the other end of the first ear hook that has passed through the first lower side end region extends a predetermined length toward the second lower side end region and exists in a temporarily fixed state; the other end of the second ear hook that has passed through the second upper end region extends a predetermined length into the first upper end region and is temporarily fixed thereto; The wet smoke mask with increased oxygen generation sustainability described in claim 7, characterized in that the first extension portion extending from the other end of the first ear loop and the second extension portion extending from the other end of the second ear loop are structured to be joined together by forming a tear line on the reaction liquid storage pack along the extension direction, and when the wearer pulls the ear loop portions to both sides, the temporary fixed state is released and the reaction liquid storage pack ruptures along the tear line, starting a chemical reaction related to oxygen generation.

9. The first extension of the first earhook and the second extension of the second earhook are a stopper provided to limit the extent to which the first extension portion and the second extension portion are pulled out; a waterproof cap provided on both sides of the ear hook portion where the loop portion is formed, and having stopper accommodating grooves to prevent the stopper from coming off the outside; 9. The wet smoke mask with increased oxygen generation continuity according to claim 8, further comprising a reaction liquid outflow prevention member positioned between the stopper and the waterproof cap to prevent the reaction liquid from outflowing.

10. The exhaust section is an inner housing having a structure provided inside the mask body, the inner housing having a step portion that fits into the exhaust hole, a protrusion of a predetermined length formed in one area of ​​the center, and a first exhaust path that is radially penetrating from the protrusion; a valve member made of a flexible material and having a structure provided on the outside of the mask body, a region of the center of which is provided with a connection hole corresponding to a protrusion of the inner housing, the center being fixed by fitting with the protrusion, and an outer shell portion that is not fixed behaves in such a way as to be in close contact with or separated from the inner housing by the wearer's breathing; 2. The wet smoke mask with increased oxygen generation continuity according to claim 1, further comprising: an outer housing having a second exhaust path formed therein, the second exhaust path forming a space for the valve member to move and for exhausting the wearer's exhaled air discharged through the first exhaust path to the outside.

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