KR20090028899A - Gas mask of filter exchange type - Google Patents

Abstract

A filter replacement type gas mask is provided, in which a filter cartridge is formed using two filter boxes and inhalation is performed through one inlet. A filter replacement type gas mask comprises: a mask(4) which is formed in order to cover the mouth and nose; a support for wearing(6) which is assembled in the front side of the mask and is assembled so that the wearing can be facilitated; a filter cartridge(8) which is installed at the mask in which the support for wearing is assembled so that the air can be inhaled through two inlets; and a head hanger(10) which is connected to the support for wearing. The mask comprises: a front side dome portion(14) which is formed of an assembly projection(12); a contact sheet; a discharge flap unit(18); and a suction flap unit.

Description

Filter changeable gas mask {GAS MASK OF FILTER EXCHANGE TYPE}

The present invention relates to a filter replaceable gas mask, and more particularly, to a filter cartridge having two filter barrels, which can be used in a toxic gas leakage area or a radioactive contamination area such as a general industrial field and a nuclear power plant. The present invention relates to a filter replaceable gas mask that facilitates breathing and easily secures a visual field in up, down, left, and right directions.

Gas masks are usually worn on the face to prevent harmful pollutants from entering the human body from contaminated areas, various emergencies, industrial areas where air can be contaminated, and nuclear power plants that can be exposed to radioactive materials. As such, it can be classified into a full face gas mask (full face gas mask) that protects the entire face including eyes and respiratory organs, and a half face gas mask that protects only the respiratory organs.

The anti-gas mask is a lot of use in the industrial field does not need to protect the eye because the structure is simple and comfortable to wear compared to the front mask mask.

Recently, gas masks are mandatory in public places, such as theaters and subways, where there are many floating populations and high risks of accidents such as fires, and accordingly, gas masks are provided to store gas masks.

Such a gas mask is mainly a front gas mask, and the mask can be reused and replaces the cleaning container. The mask made of a rubber material and the cleaning container are separately stored. In other words, when the container is stored in a mask assembled state, the activated carbon or paper filter material of the filter box absorbs moisture and impurities in the air, so that the purification efficiency drops sharply, and thus the purification ability cannot be exhibited when necessary. Since there is a concern, the container can be packaged in wrapping paper such as vinyl and stored separately.

However, if the cleaning container is stored separately without assembling the mask as described above, in case of an emergency such as a fire, the cleaning container cannot be assembled or difficult to assemble, so that the gas mask cannot be used in an emergency situation. There is a big concern.

In addition, in the gas mask described above, the mask is made of rubber, and the surface of the gas mask is often painted or contains foreign substances, and when the gas mask is worn, not only the disgusting smell causes discomfort, but also the skin It can adversely affect the pressure, and the pressure of the sump with the pressure of the container is uncomfortable. In addition, there is a problem that obscure the bottom view of the wearer due to the size of the protruding container when worn.

In particular, the gas mask used in the nuclear power plant, decontamination of both the mask and the purifier when reused in order to prevent radioactive contamination, in the case of the purifier can be troublesome decontamination due to the long radiation reduction time.

On the other hand, on the other hand, since the type of gas mask does not cover the eyes, the wearability is improved compared to the front gas mask, but has similar problems as the above-described gas mask, and if the shape and face of the gas mask do not match, the adhesion is insufficient. There is a risk of deterioration of the gas mask.

In order to solve the above problems, the present applicant has proposed a filter-integrated gas mask of domestic patent registration No. 10-0604002. The patent allows the filter cartridge to be assembled to the mask body and worn on the user's head using a hair strap connected around the filter cartridge.

However, if the filter-integrated gas mask has such a structure that the filter life is worn out for a long time, the worker has to leave the site and replace it with another gas mask, and then put it back on the site to work, or input an alternative manpower. The disadvantage is that you need to keep working. That is, since the head strap connected for wearing the gas mask is directly connected to the filter cartridge, there is a problem in that the filter cannot be replaced in the field. This causes problems such as lengthy working hours in hazardous areas.

In addition, since air is sucked through one filter cartridge, breathing is not easy during operation, as well as the front surface of the mask, in particular, the nose portion is protruded, there is a problem that obstructs the operator's view.

In addition, the gas mask of the above-described structure has a problem that the exhaust port is located below and the suction port is formed on the exhaust port, so that the size of the filter cartridge provided in the mask is restricted. In addition, the flow of air inside the mask is mainly performed at the bottom, there is a problem that the intake port is located in the top of the mask to interfere with the air flow.

The present invention has been proposed to solve the above-mentioned problems, and an object of the present invention is to form a filter cartridge with two filter barrels and allow suction to be made through one suction port so as to easily breathe.

Another object of the present invention is to be able to use safely in gas leakage areas and radioactive contamination areas, such as general industrial fields and nuclear power plants.

Still another object of the present invention is to allow the filter cartridge to be easily removed and replaced during the wearing or maintenance of the gas mask.

Still another object of the present invention is to provide an intake port under the exhaust port so as to be close to the mouth and nose to facilitate breathing.

Still another object of the present invention is to enlarge the field of view in the vertical, horizontal, and horizontal directions by assembling the filter cartridge to the suction port formed below the exhaust port.

In order to achieve the above object, the filter replaceable gas mask according to the present invention, the mask is formed to cover the mouth and nose; A wearing support assembled on the front surface of the mask for easy wearing; A filter cartridge installed to suck air through two places in the mask on which the wearing support is assembled; It is characterized in that it comprises a head hook connected to the wearing support so as to be worn on the face.

The mask includes a front dome portion covering the mouth and the nose in close contact with each other and forming an assembly protrusion; And a contact sheet extending inwardly from an edge of the front dome portion, a discharge flap portion inserted into the upper portion of the front dome portion, and a suction flap portion inserted into a lower portion of the discharge flap portion.

The contact sheet is formed in a predetermined width around the inner edge of the front dome, characterized in that to maintain airtightness with the skin.

The discharge flap portion includes a first flange formed to be in close contact with the inside of the mask, an exhaust port having discharge holes formed in the first flange, a first rib formed at an inner circumferential surface of one side of the exhaust port, and inserted into the exhaust port from the outside. And a discharge flap assembled to the first rib.

The suction flap portion includes a second flange formed to be in close contact with the inside of the mask, a rectangular suction port formed with a suction hole in the second flange, and a second rib formed on an inner circumferential surface of the suction port which is in line with the second flange. And a suction flap assembled to the second rib of the suction port inside the front dome, and a cartridge binding stand formed through the front dome at the second flange.

The wear support may include a plurality of protrusion holes formed at a center lower end thereof; An insertion hole formed to expose the suction flap portion and the cartridge binding stand between the protrusion holes; A flap protection plate assembled at an upper portion of the insertion hole to protect a discharge flap of the exhaust port and to form a vent hole; It characterized in that it comprises a band connecting band extending above and below both sides of the insertion hole and the flap protection plate.

The filter cartridge may include a filter cylinder formed on both sides of a C-shape connecting the balls on both sides of the face, an assembly hole forming an intake passage in the middle of the inner circumferential surface of the filter cylinder, and a cartridge binding table to be caught by the cartridge holder. It characterized in that it comprises a one-touch clip is formed.

The filter cylinder may include a base case formed in a C shape having a narrow middle portion and a wide end portion thereof, a case cover having a perforated portion to be separated and coupled to the base case to facilitate intake of outside air, and the base case and the case cover. Characterized in that it comprises a filter that is built to have a filtration and detoxification function in between.

The assembly port, characterized in that the locking step is formed on the inner peripheral surface to be inserted into the locking groove of the suction port.

The headrest is characterized in that it comprises an elliptical head restraint connected to the upper connection hole of the band connection unit by the elastic member, and a fastening clip connected to the elastic member by the lower connection hole of the band connection unit.

According to the filter replaceable anti-gas mask according to the present invention configured as described above, the width of the field of view in the vertical, horizontal, left and right directions by expanding the filter cartridge in the suction port under the exhaust port located on both sides of the ball.

In addition, the filter cartridge can be easily detached with a one-touch clip on the cartridge binding stand, and there is an effect that it can be replaced quickly.

In addition, by forming the filter cylinders on both sides so that air is sucked through the two places, the suction area is enlarged, there is an effect that the breathing is easy.

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

1 is an exploded perspective view illustrating a filter replacement gas mask according to the present invention, FIG. 2 is a perspective view illustrating the gas mask of FIG. 1, FIG. 3 is a side cross-sectional view of the gas mask of FIG. 2, and FIG. 4. 2 is a front view illustrating the gas mask of FIG. 2.

The filter replaceable gas mask 2 of the present invention includes a mask 4 formed to cover the mouth and the nose, as shown in FIGS. 1 and 2; A wearing support 6 assembled to the front of the mask 4 to facilitate wearing; A filter cartridge (8) installed to suck air through two places in the mask (4) to which the wearing support (6) is assembled; It is connected to the wearing support 6 includes a head hook 10 connected to be worn on the face.

The mask 4 includes a front dome part 14 covering the mouth and the nose in close contact with each other and forming the assembling protrusion 12; A contact sheet 16 extending inwardly from an edge of the front dome portion 14, a discharge flap portion 18 inserted into an upper portion of the front dome portion 14, and a lower portion of the discharge flap portion 18; It includes a suction flap portion 20 inserted into the.

Such a mask 4 is preferably made of a rubber material or silicone that maintains its shape while covering the face portion including the mouth and nose, does not give a feeling of pressure, and is comfortable to wear.

In addition, the contact sheet 16 is formed at a constant width on the inner edge of the mask 4 so as to increase adhesion to the face.

The discharge flap portion 18 includes a first flange 24 formed to be in close contact with the mask 4, an exhaust port 26 having a discharge passage formed on the first flange 24, and the exhaust port ( 26) a first rib 28 formed on one side inner circumferential surface and a discharge flap 30 inserted into the exhaust port 26 from the outside and assembled to the first rib 28.

In addition, the exhaust port 26 formed in the mask 4 is formed in a circular shape, and is configured to open and close the discharge flap 30 when it is exhausted. The discharge flap 30 is formed of a silicon or rubber material, and is inserted into the first rib 28 from the outside.

Thus, the discharge flap 30 is blocked by the flap protection plate 54 having a vent hole 32 to interfere with the outside.

The suction flap portion 20 includes a second flange 36 formed to be in close contact with the front dome portion 14, a rectangular suction port 38 formed with a suction passage at the second flange 36, and A second rib 40 formed on the inner circumferential surface of the suction port 38 colinear with the second flange 36, and a suction assembled to the second rib 40 of the suction port 38 inside the front dome part 14. A flap 42 and a cartridge binding stand 46 protruding from the second flange 36 to form a binding hole 44 are included.

The suction flap portion 20 is formed below the discharge flap portion 18 so as to be close to the mouth and the nose so that the breathing is easily performed. In addition, the suction flap 42 of the suction flap portion 20 is formed in a rectangle by a silicon or rubber material, and is coupled to the second rib 40 by an insertion protrusion 48 from the inside toward the outside. The suction flap 42 is to be fitted in one direction, unlike the conventional suction flap to be screwed in, it can be easily removable. In addition, the suction flap 42 is not limited to a quadrangle and may be formed in various shapes.

The suction flap 42 is hermetically contacted with the circumferential edge of the suction port 38 so that the air is sucked up during intake and closed while the exhaust is closed to block the flow of air.

The wearing support 6 includes a plurality of protrusion holes 50 formed at the bottom of the center; An insertion hole 52 formed between the protrusion hole 50 to expose the suction flap part 20 and the cartridge binding stand 46; A flap protection plate 54 which is assembled to an upper portion of the insertion hole 52 to protect the discharge flap 30 of the exhaust port 26 and forms a vent hole 32; The insertion hole 52 and the flap protection plate 54 includes band connecting strips 56 extending above and below both sides.

In addition, the band connecting table 56, a string connecting hole 58 is formed to facilitate the connection of the elastic member 78.

The wearing support 6 is positioned in front of the mask 4 to be in close contact with the face at a uniform pressure when tightened by the headrest 10. The wearing support 6 is formed in an X shape so as to apply an equal pressure to the mask 4.

The filter cartridge 8 includes a filter cylinder 60 formed at both sides in a C shape connecting the balls on both sides of the face, and an assembly opening 62 forming an intake passage in the middle of the inner circumferential surface of the filter cylinder 60. ) And a one-touch clip 64 formed at the lower portion of the assembly tool 62 so as to be caught by the cartridge binding stand 46.

In this embodiment, the one-touch clip 64 is located below the assembly opening 62, but the one-touch clip 64 may be formed at the lower portion or the side surface of the assembly opening 62.

The filter cylinder 60 has a base portion 66 formed in a C-shape having a narrow middle portion and a wide end portion thereof, and a porous portion 68 so as to be easily separated from the base case 66 while being coupled to the base case 66. It includes a case cover 70 formed, and a filter 72 is built between the base case 66 and the case cover 70 to have a filtration and detoxification function. By forming the filter barrel 60 in a C-shape with a narrow middle portion and a wide end, the wearer's field of view can be secured widely and can be easily detached.

The filter cylinder 60 and the filter 72 is preferably formed in a C-shape with a narrow middle portion and wide both ends in consideration of filtration and detoxification ability, appearance, activity, and visibility.

The assembly port 62 is formed with a locking jaw 74 on the inner circumferential surface so as to be caught by the suction flap portion 20, so that the filter cartridge 8 can be easily and accurately assembled.

In addition, the filter cartridge 8 has a plurality of ventilation guide ribs 76 formed therein to guide the air passing through the filter 72 toward the intake passage.

The filter cartridge 8 allows the base case 66 and the case cover 70 to be hermetically coupled so that there is no leakage of air. In the filter cartridge 8 according to the present invention, not only the adhesion to the face is improved when the gas mask is worn, but also there is no shaking element compared to the case in which a conventional purifying container is employed, so that the adhesion state to the face can be maintained firmly. have.

The headrest 10 is an elliptical head restraint 80 connected to the upper string connecting hole 58 of the band connecting table 56 by the elastic member 78, and the lower side strap of the band connecting table 56. It comprises a fastening clip 82 is connected to the connecting member 58 by the elastic member 78.

Hereinafter, the operation and the use example according to the present invention made as described above will be described.

First, looking at the assembly sequence of the gas mask according to the present invention, the exhaust port 26 is provided with the exhaust flap 30 is installed in the upper portion of the mask 4, the suction port 38 provided with the suction flap 42 thereunder Assemble each one. At this time, the assembly of the cartridge binding stand 46 is also made when the suction port 38 is assembled.

In addition, the wear support 6 installed to expose the exhaust port 26 and the suction port 38 on the front surface of the mask 4 is first assembled by pressing the upper end of the exhaust port 26 and the lower end of the two assembling protrusions 12. Assemble using

When the wear support 6 is assembled to the mask 4 and becomes one, the filter cartridge 8 is coupled to the mask 4 to complete the assembly of the gas mask 2.

When assembling the filter cartridge 8, by using the locking jaw 74 formed on the upper end of the assembly opening 62, the assembly opening 62 is completely inserted into the locking groove 37 of the suction opening 38. The lower one-touch clip 64 is also caught in the cartridge binding unit 46 at the same time is a complete coupling.

On the contrary, when the filter cartridge 8 is to be removed, the filter can be easily removed since the one-touch clip 64 is pulled from the bottom while being removed.

When assembled to the filter cartridge 8 described above, the head restraint 80 connected to the connecting hole 58 of the upper band connecting table 56 by the elastic member 78 is first worn on the head, and the length of the elastic member 78 is adjusted. Adjust primarily. Then, after connecting by connecting from the back of the neck using a fastening clip 82 connected to the lower connection hole 58 by the elastic member 78, tightening to the appropriate tension to prevent movement of the gas mask is completed.

Hereinafter, the intake / exhaust action through the gas mask 2 in the state where wearing is completed is demonstrated.

When the air is first inhaled, the air is sucked in through the two filter barrels 60 of the filter cartridge 8. At this time, the contaminated air is detoxified and filtered by the filter 72, and then only clean air is introduced through the suction passage of the suction port 38 along the guide rib 76 formed in the filter cylinder 60.

The air sucked through the suction passage is sucked into the mask 4 while pushing the suction flap 42 blocking the suction passage formed by the combination of the assembly port 62 and the suction port 38.

The wearer breathes the air sucked into the mask 4 in this way, and the air spouted by the wearer pushes the discharge flap 30 blocking the exhaust passage of the exhaust port 26 located above the suction flap 42. Discharged. The air discharged by pushing the discharge flap 30 is discharged into the atmosphere through the air vent 32 around the flap protection plate 54.

Then, in the case of replacing the filter cartridge 8 after a certain period of use, by pressing out the one-touch clip 64 hanging on the cartridge binding stand 46 is easily separated from the bottom. Then, the filter cartridge 8, which is caught by the locking jaw 74 in the locking groove 37 of the suction port 38, may be removed and discarded.

The filter cartridge 8 completely separated from the mask 4 is collected and processed separately, and the new filter cartridge 8 can be simply assembled and used in the reverse order of separation.

The gas mask according to the present invention configured as described above may be stored in a packaged state so as not to be exposed to outside air, for example, in a gas mask storage box of a public place, or a gas mask storage box of a nuclear power plant. Wear a gas mask immediately according to the emergency can be avoided.

In addition, the gas mask according to the present invention is made of a C-shaped filter cartridge located on both cheeks of the face, so that the field of view is secured in up, down, left and right directions and is convenient to use. And the outside air is inhaled through two filter barrels in one filter cartridge, so you can breathe comfortably.

In addition, the filter cartridge is at the end of its life and can be replaced with a new one, so that the gas mask can be used semi-permanently.

In the above described exemplary embodiments of the present invention by way of example, the present invention is not limited to the above embodiments, various modifications and changes will be possible without departing from the spirit of the present invention.

The gas mask of the present invention can be widely used in radioactive pollution areas such as nuclear power plants as well as general industrial use.

1 is an exploded perspective view showing a filter replaceable gas mask according to the present invention.

FIG. 2 is a perspective view illustrating the gas mask of FIG. 1. FIG.

FIG. 3 is a side sectional view of the gas mask of FIG. 2. FIG.

4 is a front view illustrating the gas mask of FIG. 2.

<Explanation of symbols for the main parts of the drawings>

4: mask 6: wearing support

8: filter cartridge 10: headrest

12: Assembling projection 14: front dome

16: contact sheet 18: discharge flap

20: suction flap portion 24: first flange

26: exhaust vent 28: first rib

30: discharge flap 36: second flange

38: inlet 40: second rib

42: suction flap 46: cartridge binding stand

54: flap protector 56: band connection

60: filter cylinder 62: assembly hole

64: one-touch clip 66: base case

70: case cover 72: filter

78: elastic member 80: head support

Claims (10)

A mask 4 formed to cover the mouth and the nose; A wearing support 6 assembled to the front of the mask 4 to facilitate wearing; A filter cartridge (8) installed to suck air through two places in the mask (4) to which the wearing support (6) is assembled; Filter replacement gas mask comprising a head hook (10) connected to the wearing support (6) to be worn on the face. The method of claim 1, The mask 4 includes a front dome part 14 covering the mouth and the nose in close contact with each other and forming the assembling protrusion 12; A contact sheet 16 extending inwardly from an edge of the front dome portion 14, a discharge flap portion 18 inserted into an upper portion of the front dome portion 16, and a lower portion of the discharge flap portion 18; Filter replacement type gas mask comprising a suction flap portion 20 inserted into the. The method of claim 2, The contact sheet (16), filter replacement mask mask, characterized in that formed in a predetermined width so as to increase the contact with the face on the inner edge of the mask (4). The method of claim 2, The discharge flap portion 18 includes a first flange 24 formed to be in close contact with the mask 4, an exhaust port 26 having a discharge passage formed on the first flange 24, and the exhaust port ( 26) A filter replacement type comprising a first rib 28 formed at one inner circumferential surface and an exhaust flap 30 inserted into the exhaust port 26 from the outside and assembled to the first rib 28. Gas mask. The method of claim 4, wherein The discharge flap 30, filter replacement type gas mask, characterized in that the external interference is blocked by the flap protection plate 54 having a vent hole 32 in the wearing support (6). The method of claim 2, The suction flap portion 20 includes a second flange 36 formed to be in close contact with the front dome portion 14, a rectangular suction port 38 having a suction passage formed on the second flange 36, and the second flange 36. A second flap 40 is formed on the inner circumferential surface of the suction port 38 in the same line as the flange 36, and the suction flap is assembled to the second rib 40 of the suction port 38 inside the front dome portion 14. (42) and a cartridge binding stand (46) protruding from the second flange (36) to form a binding hole (44). The method of claim 1, The wearing support 6 includes a plurality of protrusion holes 50 formed at a lower end of the center; An insertion hole 52 formed between the protrusion hole 50 to expose the suction flap part 20 and the cartridge binding stand 46; A flap protection plate 54 which is assembled to an upper portion of the insertion hole 52 to protect the discharge flap 30 of the exhaust port 26 and forms a vent hole 32; The filter replacement type gas mask according to claim 1, characterized in that it comprises a band connecting table (56) extending on both sides of the insertion hole (52) and the flap protection plate (54). The method of claim 1, The filter cartridge 8 is a filter cylinder 60 formed on both sides in a C-shape to connect the balls on both sides of the face, and the assembly opening 62 to form an intake passage in the middle of the inner peripheral surface of the filter cylinder 60 And a one-touch clip (64) formed in the assembly opening (62) so as to be caught by the cartridge binding stand (46). The method of claim 8, The filter cylinder 60 has a base case 66 formed in a C-shape having a narrow middle portion and a wide end portion thereof, and a porous portion 68 formed therein so as to be easily coupled to the base case 66 while allowing outside air to be easily sucked. And a filter cover (72) embedded between the case cover (70) and the base case (66) and the case cover (70) to have filtration and detoxification functions. The method of claim 1, The headrest 10 is an elliptical head restraint 80 connected to the upper connecting hole 58 of the band connecting table 56 by the elastic member 78, and the lower connecting hole of the band connecting table 56 ( 58) filter replacement type gas mask comprising a fastening clip (82) connected to the elastic member (78).

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