KR20050000637A - Protective breathing mask - Google Patents

Abstract

PURPOSE: A portable gas mask is provided which is compact-sized and ready for use without a separate tightening unit by forming the mask using an elastomeric material, thereby increasing portability and enabling a wearer to conveniently and rapidly wear the same so that the wearer is able to escape from a dangerous area during emergency situations such as fire or toxic gas outflow. CONSTITUTION: The portable gas mask comprises: a head portion(10) made of a fire-resistant material; a neck portion(12) which is highly elastic to be shrinkable so as to be tightly kept around the neck; a retinal scanning panel(20) having a transparent film for providing a viewing perspective; a filter(30) for filtering and removing toxic substances; and a ventilation unit(40) adapted to permit exhaled gases to be exhausted and to inhibit external gases from being induced inside.

Description

Portable breathing mask {Protective breathing mask}

The present invention relates to a portable gas mask, in particular, it is manufactured to be portable and compact so that it can be used quickly in the field of poisonous gas caused by fire or accident caused by fire which may not occur anywhere and when tightened when worn by the use of elastic material. Relates to a portable gas mask without the need for means.

People have been exposed to mass media in the wake of major fires and poisonous gas accidents. In particular, a fire can be caused by carelessness anytime, anywhere, and the casualty is increased due to the delay of the escape time in the case of a large building or a dense residential area such as a hotel. The biggest cause of human injury from fire is the asphyxiation of toxic substances such as smoke or gas rather than the death of burns. At the fire site, people die by breathing and absorbing toxic substances. For example, in recent fire events such as the Daegu subway disaster, people are unable to find a way out, and many people become addicted to toxic substances in a closed fire site, causing their lives to become worse. Therefore, in order to prevent human injury at the fire site, people must be able to find an exit without being addicted to toxic substances, or wait at the fire site until firefighters rescue. Therefore, in order to prevent human injury from fire, it is preferable to use a gas mask at the fire site.

Typical gas masks have a hooded appearance that covers the head of a person. In addition, the gas mask is provided with a breathable breathing air, a filter is installed in the ventilation hole to remove harmful substances. In addition, the gas mask of the prior art is provided with a tightening means for sealing and tightening the neck portion in a state worn by a person so that outside air without passing through the filter does not penetrate the inside. The gas mask thus configured serves to reduce human injury at the accident site by removing harmful substances while passing smoke or gas generated by a fire or poison gas accident through a filter.

However, while the general public is widely aware of the necessity of the gas mask, they are not equipped with the idea that a fire or poison gas accident will not occur or do not use it.

In addition, the gas mask is somewhat larger in volume to carry or store, and may be even larger in the case of military use in preparation for chemical warfare. For this reason, the general public does not have a gas mask in everyday life, and cannot be used in need.

In addition, since the gas mask is used only in case of emergency, the general public often does not carry or use it. For this reason, the general public has a problem in that they are not familiar with the act of tightening the tightening means to prevent the inflow of outside air and wear a gas mask at the site of the poisonous gas caused by the fire or the poisonous gas caused by the accident. In addition, since the elderly and the weak may not be able to tighten the tightening means in an urgent accident scene, a situation in which a gas mask that can be worn without the tightening means is required.

The present invention is provided to solve the problems of the prior art as described above, is made of a small portable to be used by the general public at any time in a fire or poison gas accident site, the means of tightening when worn by the use of elastic material is required The purpose of the present invention is to provide a portable gas mask.

1 is a front view of a portable gas mask according to an embodiment of the present invention,

FIG. 2 is a view for explaining an example of wearing the portable gas mask shown in FIG.

3 is a view illustrating a state in which the user wears the portable gas mask shown in FIG. 1,

4 is a cross-sectional view illustrating the filter of the portable gas mask shown in FIG. 1;

♠ Explanation of symbols on the main parts of the drawing ♠

10: mask head 12: mask neck

20: field of view panel 30: filter

40: exhaust vent

Portable gas mask according to the present invention for achieving the object as described above is configured to remove the harmful substances generated in the fire site or the poison gas accident site by the person breathing. The present invention provides a mask head having an internal space capable of accommodating the human head and having fire resistance; A mask neck attached to the cut-out inlet side of the mask head, the mask neck having elasticity that is reduced to fit the neck of the person after being widened to the extent that the head of the person can pass therethrough; A viewing panel portion which is cut to a predetermined size in the head portion of the mask in which the human eye is located, and a transparent film is attached to the cut inner surface to secure the human vision; It is formed on the mask head, characterized in that it comprises a filter laminated to at least one layer of the filter layer for removing the harmful substances.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of a portable gas mask according to the present invention will be described in detail.

1 is a front view of a portable gas mask according to an embodiment of the present invention, FIG. 2 is a view illustrating a wearing example of the portable gas mask shown in FIG. 1, and FIG. 3 is a portable gas mask shown in FIG. 1. 4 is a diagram illustrating a state in which a user wears a mask, and FIG. 4 is a cross-sectional view illustrating the filter of the portable gas mask shown in FIG. 1.

As shown in Figures 1 to 4, the portable gas mask of the present invention is made of a material having excellent elasticity, in particular, the mask neck 12 is tightened by the neck portion in a human wearing state, the outside air flows in Seal the inside to prevent it. In addition, the present invention, the transparent field of view panel 20 is formed so as to secure a field of view when wearing a portable gas mask, the human body to breathe the air filtering out harmful substances under the field of view panel 20 The thin plate-shaped filter 30 to supply is attached and formed.

Such a portable gas mask is made of natural rubber latex or silicone latex with a flame retardant added for use in a fire site. In addition, the portable gas mask is attached to the mask head portion 10 having a predetermined size that can be inserted into the human head therein, and the inlet side of the mask head portion 10 to tighten the neck of the person It consists of a mask neck 12.

Since the neck portion 12 of the mask is in close contact with the human body due to a high stretch rate in a human wearing state, it is possible to prevent the inflow of outside air. The mask neck 12 of this portable gas mask has a thickness of 0.2 mm rather than the thickness of the mask head 10 is 0.4 mm, and the inlet diameter is smaller than that of the mask head 10. For this reason, the portable gas mask may enter a human head as the mask neck 12 is expanded as shown in FIG. 2, and after wearing, the mask neck 12 is tightened with excellent elasticity as shown in FIG. 3. As it grows, it sticks to the neck of the human body.

The mask neck 12 of the portable gas mask is most preferably made of a material having a stretch ratio of 700%. However, according to the results obtained through various experiments, the stretch rate does not significantly affect the fit while blocking the inflow of outside air. In this range of 300% or more, it can be adjusted and used as needed.

In addition, the portable gas mask of the present invention is provided with a visual field panel 20 for securing a visual field and a filter 30 for removing harmful substances contained in the outside air, as in a conventional gas mask.

The visual field panel 20 is formed by cutting a portion where the human eye is located in the mask head 10 to a certain size and bonding a transparent film (thickness 0.03 mm) to the inner surface thereof. In addition, the transparent film of the visual field panel 20 is difficult to burn at the fire site, and uses a polyimide-co-teflon material to prevent fog caused by a temperature difference caused by human breathing.

And, since the portable gas mask can be in close contact with the wearer's face when worn due to the elastic material, the transparent film of the field of view panel 20 can be stimulated by pressing the nose of the protruding wearer. Therefore, the lower end central portion 21 of the visual field panel 20 is formed to be bent so as to correspond to the nose of the wearer.

In addition, one or more filters 30 are formed below the viewing panel portion 20, and the filters 30 are attached to the inner side of the mask head 10 cut to a certain size. At this time, the filter 30 is sealed along the junction 32, which is an edge of the cutout, on the inner surface of the mask head 10.

Such a filter 30 has a structure in which a filter layer is laminated in one or more layers as shown in FIG. 4, and filters out harmful substances contained in gas or smoke, or removes dust or the like depending on materials used. In one embodiment, in the filter 30 of the present invention, a mesh layer 33, which is a flame retardant material, is exposed to the outside of the mask, and a pair of nonwoven fabric layers 34 having excellent dust resistance are formed under the mask. Then, between the pair of nonwoven fabric layers 34, an activated carbon layer (granular activated carbon or activated carbon fiber; 35) that adsorbs gas to filter harmful substances is stacked. With the configuration of the filter 30 as described above, the wearer may breathe air in a state in which harmful substances have been removed, and in the case of removing other foreign substances such as dust, another additional filter layer may be inserted into the filter 30. . In addition, although the performance of the filter 30 varies depending on the amount of the filter layers stacked, the filter 30 is manufactured so that its performance can be maintained for 15 minutes in a fire or poison gas accident site when used for general emergency use.

In addition, the portable gas mask is formed in the exhaust port 40 for discharging the air breathed by a person in the position of the nose or mouth of the human body. The air breathed by a person can be discharged through the filter 30, but by separating the exhaust port 40, the air can be discharged more smoothly. The exhaust vent 40 may discharge the air breathed by the pressure exhaled by the person, the outside air is configured to not be introduced into the inside.

In this configuration, since the portable gas mask of the present invention is made of a flexible material having a thin thickness, the portable gas mask can be folded and carried or stored in a small size in everyday life, and can be used as follows in an emergency such as a fire. That is, in the event of a fire, the mask neck 12 of the portable gas mask is pulled by hand as shown in FIGS. 2 and 3, and then worn on the head of a person. Then, the portable gas mask is naturally worn on the head of the person due to its elasticity, and the mask neck 12 having a higher elasticity tightens the neck part of the person. Then, the wearer may breathe the air from which the harmful substances have been removed through the filter 30 of the portable gas mask for a predetermined time, and may exit the fire site while securing the view through the field of view panel 20.

As described in detail above, since the portable gas mask of the present invention is manufactured in a small size with a thin elastic material, it is easy to carry or store by folding it to a small size in everyday life, so as to prevent toxic gas or accident caused by sudden fire. There is an advantage that can be used quickly in the field of poison gas generation.

In addition, since the present invention does not require a tightening means for blocking external air, anyone in an emergency fire or poison gas accident site has an advantage that can be quickly and easily worn and used.

Although the technical idea of the portable gas mask according to the present invention has been described above with the accompanying drawings, this is for illustrative purposes only and is not intended to limit the present invention. In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (5)

In the gas mask to be configured to breathe by removing the harmful substances generated in the fire or poison gas accident site, A mask head having an internal space capable of accommodating the human head and having fire resistance; A mask neck attached to the cut-out inlet side of the mask head, the mask neck having elasticity that is reduced to fit the neck of the person after being widened to the extent that the head of the person can pass therethrough; A viewing panel portion which is cut to a predetermined size in the head portion of the mask in which the human eye is located, and a transparent film is attached to the cut inner surface to secure the human vision; And a filter formed on the mask head, wherein the filter layer for removing the harmful substances is stacked in at least one layer. The portable gas mask of claim 1, wherein the mask neck portion has a stretch ratio of 300% to 700%. The portable gas mask of claim 1, wherein the lower end of the viewing panel unit is formed to bend a portion where the nose is in contact with the person. According to claim 1, wherein the filter is a flame retardant mesh layer exposed to the outside, a pair of non-woven fabric laminated on the lower surface of the mesh layer, and inserted between the pair of non-woven fabric laminated to adsorb the harmful substances Portable gas mask, characterized in that the activated carbon layer is laminated. The method of claim 4, wherein the mask head is characterized in that the exhaust port for exhausting the air by the pressure of the person breathing and exhaling the air introduced through the filter, further characterized in that the exhaust air passage is blocked Portable gas mask.