KR100903119B1 - Gas mask of filter exchange type - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter replaceable gas mask, and aims to efficiently decontaminate contaminated air and easily breathe in case of toxic gas leakage or radioactive contamination in a general industrial field or a nuclear power plant.

To this end, the present invention is a mask formed so as to cover the mouth and nose; Wearing support that is assembled to be installed in the upper and lower left and right sides of the mask for easy wearing; A filter cartridge connected to the wearing support and installed to filter air from both sides; It characterized in that it comprises a head hook connected to the wearing support to be worn on the face.

According to the present invention, it is possible to breathe comfortably even while wearing a mask, to secure a wide field of view, and to easily detach and remove a filter cartridge by a one-touch clip.

Gas mask, radioactivity, decontamination, pad, activated carbon, filter, synthetic resin

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.

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In order to achieve the above object, the filter replaceable gas mask according to the present invention includes a front dome portion covering the mouth and the nose and forming an assembly protrusion, a contact sheet extending inwardly from the edge of the front dome portion, and A mask comprising a discharge flap portion inserted into the upper portion of the front dome and a suction flap portion inserted into the discharge flap portion; A wearing support assembled to the front of the mask; A filter cartridge assembled to the front of the wear support to allow air to be sucked in through the left and right two places; In the filter replacement type gas mask comprising a head hook connected to the wear support to be worn on the face, the filter cartridge, when viewed from above is formed to surround the left and right cheeks of the face as a C-shaped cross section And a one-way clip provided at a central portion of the filter barrel to form an intake passage, and a one-touch clip formed at a lower end of the assembly hole to be caught by a cartridge binding unit provided at the suction flap portion during assembly. The filter cartridge can be easily detached from the suction flap even when the gas mask is worn.

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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 includes a protrusion hole provided at both sides of the lower portion and fitted to the assembly protrusion of the mask; An insertion hole formed between the protrusion holes to insert a suction flap portion; A flap protection plate provided at an upper portion of the insertion hole to protect the discharge flap of the discharge flap unit assembled therein, and having a ventilation hole; It characterized in that it comprises a band connecting band extending from the upper and lower sides of the insertion hole and the flap protection plate.

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The above-mentioned filter cylinder may include: a base case having a C-shaped cross section when viewed from above, and having a top and bottom widths of the central portion where the assembly holes are formed are narrower than the top and bottom widths on both the left and right sides; A case cover which is coupled to both sides of the base case and forms a porous portion so as to easily suck outside air; It characterized in that it comprises a filter built between the base case and the case cover to have a filtration and detoxification function.

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 includes: a half moon-shaped head restraint connected to an elastic member by connecting holes formed on both upper portions of the band connecting rod, respectively; Characterized in that it comprises a fastening clip connected to the elastic member in the connection hole formed on both sides of the lower portion of the band connection.

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 projection hole 50 provided at both sides of the lower portion and fitted into the assembly protrusion 12 of the mask 4; An insertion hole 52 formed between the protrusion holes 50 and into which the suction flap portion 20 is inserted; A flap protection plate (54) provided at an upper portion of the insertion hole (52) to protect the discharge flap (30) of the discharge flap portion (18) assembled therein, and to form a vent hole (32); The insertion hole 52 and the flap protection plate 54 includes a band connecting table 56 extending from above and below.

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, when viewed from above, is provided with a filter cylinder 60 formed so as to surround the left and right balls of the face as C-shaped in cross section, and a central portion of the filter cylinder 60 to provide an intake passage. It comprises an assembly tool 62 to be formed, and a one-touch clip 64 is formed at the lower end of the assembly tool 62 to be caught by the cartridge binding stand 46 provided in the suction flap portion 20 during assembly.

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 case 66 having a C-shaped cross section when viewed from above, and having an upper and lower width of the central portion where the assembly tool 62 is formed narrower than the upper and lower widths of both the left and right sides; A case cover (70) coupled to both sides of the base case (66) and having a porous portion (68) to facilitate intake of outside air; It comprises a filter 72 is built between the base case 66 and the case cover 70 to have a filtration and detoxification function. The filter cylinder 60, when viewed from above, has a C-shaped cross section and is formed in a structure that is wrapped in close contact with both balls of the face, so that the field of view of the wearer can be secured widely and can be easily detached.

In view of the filtration and detoxification ability, appearance, activity, visibility, etc., it is preferable that the filter cylinder 60 and the filter 72 are formed to be narrower than the upper and lower widths of both the left and right sides.

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 a half-moon type head restraint 80 is connected to the connecting hole 58 formed on both sides of the upper portion of the band connecting table 56 by an elastic member 78; It comprises a fastening clip 82 is connected to the elastic member 78 to the connection hole 58 formed on both sides of the lower portion of the band connecting table 56, respectively.

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)

delete The front dome part 14 covering the mouth and the nose and forming the assembling protrusion 12, the contact sheet 16 extending inwardly from the edge of the front dome part 14, and the front dome part 14. A mask (4) consisting of a discharge flap portion (18) inserted into an upper portion of the inner side, and a suction flap portion (20) inserted into a lower portion of the discharge flap portion (18); A wearing support 6 assembled to the front of the mask 4; A filter cartridge (8) which is assembled to the front of the wear support (6) so that air is sucked in through the left and right two places; In the filter replacement type gas mask comprising a head hanger (10) which is connected to the wearing support (6) to be worn on the face, The filter cartridge 8, When viewed from the top of the filter cylinder 60 is formed so as to surround the left and right balls of the face as a C-shaped cross section, the assembly opening 62 is provided in the central portion of the filter cylinder 60 to form an intake passage, It is formed on the lower end of the assembly port 62 and comprises a one-touch clip 64 to be caught on the cartridge binding stand 46 provided in the suction flap portion 20 during assembly, even in the state wearing a gas mask Filter replacement type respiratory mask, characterized in that the cartridge (8) can be easily removable from the suction flap (20). delete 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 2, The wearing support 6 includes a projection hole 50 provided at both sides of the lower portion and fitted into the assembly protrusion 12 of the mask 4; An insertion hole 52 formed between the protrusion holes 50 and into which the suction flap portion 20 is inserted; A flap protection plate (54) provided at an upper portion of the insertion hole (52) to protect the discharge flap (30) of the discharge flap portion (18) assembled therein, and to form a vent hole (32); Filter insertion type respiratory mask, characterized in that it comprises a band connecting table 56 extending from the upper and lower sides of the insertion hole 52 and the flap protection plate 54. delete The method of claim 2, The filter cylinder 60, when viewed from above the cross-section is a C-shaped, the base case 66, the upper and lower widths of the central portion formed with the assembly opening 62 is formed narrower than the upper and lower widths on both sides; A case cover (70) coupled to both sides of the base case (66) and having a porous portion (68) to facilitate intake of outside air; Filter replacement type respiratory mask, characterized in that comprises a filter 72 is built between the base case 66 and the case cover 70 to have a filtration and detoxification function. The method of claim 2, The headrest 10 is a half-moon type head restraint 80 is connected to the connecting hole 58 formed on both sides of the upper portion of the band connecting table 56 by an elastic member 78; Filter replacement type respiratory mask, characterized in that it comprises a fastening clip (82) connected to the expansion and contraction member (78) in each of the connection holes 58 formed on both sides of the lower portion of the band connecting table (56).

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