KR102079518B1 - A Mask with filter assembly for exhaling - Google Patents

Abstract

The present invention relates to a mask having a filter assembly for exhalation, in order to improve the structure of the mask body to induce rapid air discharge during exhalation of the user and to minimize the volume reduction during conversation, the nose and mouth of the face of the user's face It is assembled to the mask body to wrap, the fixing portion to be wrapped around the user's ear or the back of the head to the both ends of the mask body, and the through portion formed in the center of the mask body to exhaust the air during the exhalation of the user Provided is a mask having an exhalation filter assembly comprising an exhalation filter assembly that blocks air ingress.

Description

Mask with filter assembly for exhalation {A Mask with filter assembly for exhaling}

The present invention relates to a mask having an exhalation filter assembly, and more particularly, to a mask having an exhalation filter assembly capable of quickly exhausting air during exhalation of a user and minimizing volume reduction during conversation. will be.

In general, the mask is used to prevent the fine dust in the air or virus dust enters the human body through the respiratory system or damage to others due to the outflow of air, such as cold virus.

Recently, the necessity of using a mask throughout the four seasons is increasing due to contaminants such as yellow dust and soot and SARS virus, and various types of masks have been proposed.

An example of such a mask has been proposed a registration utility model No. 20-0485363. The present invention relates to a respiratory health mask equipped with a hanger band length adjusting device, which is a symmetrical synthetic resin material that accommodates a face-cover covering the nose and mouth of the face and a strap-type elastic hanger band that secures the face cover to both ears. The two-sided bilateral symmetrical two-sided symmetrical support pieces, which can be folded around the folds formed in the middle at regular intervals between a plurality of slanted walls of the plurality of inclined support pieces, are all injection molded into a rectangular appearance of double-sided symmetrical folding The hanger band length adjusting device for tightly accommodating the hanger band is fixedly fastened to both sides of the face cover, and the hanger band length adjusting device is provided to adjust the length of the hanger band by the band length adjusting device according to the shape and size of the face part.

However, the face cover of the mask proposed in the registration utility model has a filtration performance of air as it is formed of a nonwoven fabric or the like to perform a filter function as a conventional structure, but the filtration of fine dust is extremely limited as well as a cold virus, etc. The antibacterial function to block the inflow of is also limited.

In addition, the mask is quickly absorbed when the rain comes in contact with the difficulty of breathing, as well as the moisture-induced discomfort when the mask in contact with the skin. In particular, when the mask contains moisture, it is difficult for the user to breathe, it is difficult to discharge the air quickly when exhaling, and it is difficult to communicate because the volume is not sufficiently delivered to the outside when talking with others.

In addition, as the material of the face cover is made of a non-woven fabric, even when wearing a mask on the face to maintain a constant shape, if the wind blows too hard, the shape of the face cover occurs, and it causes discomfort when contacted to the face face, The cover of the cover type is formed on the upper and lower part of the rear face of the face cover, but it does not adhere properly to the user's face surface, and the air breathing through the gap easily occurs, so the dustproof effect is very low.

Accordingly, the present invention has been made to solve the fundamental problems of the prior art, the object of the present invention is to improve the structure of the mask body to induce a quick discharge of air during the exhalation of the user and also to minimize the volume reduction during conversation It is to provide a dust mask having a breathable filter assembly.

In addition, the present invention can increase the filtration efficiency of the fine dust as well as minimize the shape deformation due to the influence of the wind, etc. when worn on the face, while minimizing the absorption and penetration of moisture into the mask, there is no discomfort due to the skin contact of moisture It is to provide a dust mask with antibacterial function that also prevents the penetration of various bacteria into the respiratory tract.

The present invention for solving the above technical problem;

A mask body that covers the nose and mouth of the face of the user's face, a fixing part that is fastened to the user's ear or wraps around the back of the head at both ends of the mask body, and a through part formed in the center of the mask body to exhale A filter assembly for exhalation that exhausts air at the time and blocks the inflow of air at the time of inhalation; The exhalation filter assembly may be supported by being inserted into the through portion at the rear of the mask body, the base frame having a first seating portion formed at the front and a second seating portion formed at the rear by a partition wall having a plurality of air discharge holes, and the base. A plate-shaped silicon pad seated on the first seat of the mold to open and close the air outlet hole, a closing cap coupled to the first half of the base frame at the front of the mask body, and having a ventilation hole formed therein; Provided is a mask having a filter assembly for exhalation, characterized in that consisting of a replacement filter detachably provided in the two seat.

In this case, a through part is formed in the center of the mask body, and a support part is formed along an edge of the through part; The base frame is formed with a partition wall dividing the front and rear of the body having a cylindrical shape into the first seating portion and the second seating portion, wherein the plurality of air outlet holes maintain a certain distance from the center portion and a plurality of radial intervals It is formed while maintaining, the front outer surface of the body is formed with a first catching jaw for coupling the closing cap; The silicon pad is in close contact with the front surface of the partition wall of the base frame and the center part is provided to be pressed by the closing cap to open the air discharge hole of the partition wall when air moves from the second seating part of the base frame toward the first seating part. When the air moves from the first seating portion toward the second seating portion, the air outlet hole of the partition wall is closed; The closing cap is formed with a space portion opened to the rear side of the body and a second locking jaw is formed on the inner wall surface of the space portion over the first locking jaw of the base frame, the center of the body of the base frame in the direction of the center of the space portion A pressing protrusion for pressing the central portion of the silicon pad seated on the first seating portion to the center portion of the partition wall of the base frame is formed, and a net portion having a plurality of vent holes is formed along the front edge of the body.

And, the base frame is formed on the rear outer surface of the body is formed with a first support jaw supported on the rear of the support portion formed along the edge of the through-hole of the mask body; The silicon pad is provided with a plurality of elastic wings are divided into cuts along the edge; A second support jaw supported on the front surface of the support part formed along the edge of the through part of the mask body is formed at the rear outer surface of the closing cap; The replacement filter is characterized in that the handle which the mask user can pull when the replacement filter seated on the second seating portion of the base frame on the rear end side of the body is formed protruding.

In addition, the mask body is made of a synthetic resin material and is provided between the front and rear housings are formed with a plurality of first and second entrance and exit holes through which air can enter and exit the surface, and the fine dust is provided between the front and rear housings To one end is integrally fixed to the filtration filter, and the upper and lower edges of the front and rear housings, the other end is characterized in that the upper and lower support members are in close contact with the user's face.

According to the present invention, the mask body has a filter assembly for exhalation having a structure in which air is expelled at the time of exhalation at the center of the mask body, so that the air is quickly discharged during exhalation by wearing a mask, and the volume is reduced to minimize the conversation during the exhalation. There is an advantage that the communication can proceed smoothly even while wearing.

In addition, according to the present invention, the mask body is made of a synthetic resin material and is provided with a filtration filter inside the mask body in which the first and second entrance and exit holes are formed to increase the filtration efficiency of fine dust as well as due to the influence of wind when worn on the face. The shape deformation can be minimized to prevent the mask body from directly touching the face.

In addition, the mask body according to the present invention is made of a synthetic resin material to minimize the absorption of rain water, such as filtration filter, thereby there is no malaise due to the skin contact of moisture and by forming an antibacterial coating layer inside the mask body various bacteria are respirator It is also hygienic because it can prevent penetration into the inside.

1 is a perspective view of a mask provided with an exhalation filter assembly according to the present invention.
Figure 2 is a cross-sectional view of a mask provided with a filter assembly for exhalation according to the present invention.
Figure 3 is a rear view of the mask provided with a breathable filter assembly according to the present invention.
Figure 4 is an exploded perspective view of the filter unit for exhalation according to the invention.
Figure 5 is a cross-sectional view of the installation of the filter filter for exhalation according to the present invention.
Figure 6 is a cross-sectional view showing a wearing state of the mask with a filter unit for exhalation according to the present invention.
7 is a view showing a mask having a filter assembly for exhalation according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a mask having a filter filter for exhalation according to the present invention will be described in detail.

1 to 6, the mask 1 having the exhalation filter assembly according to the present invention includes a mask body 100 surrounding a nose and a mouth of a face of a user, and a user at both ends of the mask body 100. Fastening part 200 for hanging or fixing the rear portion of the head and the mask body 100 is provided in the center of the mask body 100, the exhalation filter assembly for quickly discharging air during the exhalation of the user and blocking the inflow of air during inhalation And 300.

Hereinafter, the structure of each part of this invention is demonstrated concretely.

The mask body 100 is made of a synthetic resin material, and the front and rear housings 110 and 120 formed with a plurality of first and second entrance and exit holes 113 and 123 through which air can enter and exit the surface, and the front and rear housings ( 110, 120 is provided between the filtration filter 130 for filtering fine dust, and one end is integrally fixed to the upper and lower borders of the front and rear housing (110, 120) and the other end is in close contact with the user's face And lower support members 140 and 150.

The front housing 110 has a front contact portion of the first body 111 is exposed to the outside and the first contact portion 114 protruding rearward outward along the edge of the first body 111 is extended, the rear The housing 120 has a second contact portion 124 extending from the rear side of the second body 121 to the outside and protruding outward along the edge of the second body 121. In this case, the first and second close parts 114 and 124 are formed to couple the front and rear housings 110 and 120.

As described above, the front and rear housings 110 and 120 are made of polyethylene (PE), polypropylene (PP), and the like, which are harmless to the human body, and can be bent on both sides of the center to wrap the respirator. Injection molding or thermocompression bonding of the film produces a smooth surface. In this case, the elasticity is present in the production of a film having a thickness of 0.3 to 0.5 mm, so that both sides of the front and rear housings 110 and 120 may be bent even when the first and second close parts 114 and 124 are joined. .

Meanwhile, when the front and rear housings 110 and 120 form the stepped first and second close parts 114 and 124 step by step, an accommodating space in which the filtration filter 130 may be seated may be formed when the joint part P1 is integrally combined. 100a) is formed. In this case, the bonding portion P1 may be bonded by applying an adhesive to the first or second bonding portions 114 and 124 or by thermally bonding the first and second bonding portions 114 and 124. Of course, in the case of thermal fusion, it is preferable that the external air is fused evenly as a whole and integrally bonded to prevent the outside air from flowing into and out of the accommodation space 100a through the gap between the first and second adhesion parts 114 and 124.

The first body 111 of the front housing 110 is formed with a plurality of first entrance and exit holes 113 through which air can enter and exit, and the surface of the second body 121 of the rear housing 120. A plurality of second entrance and exit holes 123 through which air can enter and exit are formed. Such first and second entrance and exit holes 113 and 123 are intended to allow air to enter and exit when the user of the mask 1 wears and breathes. The diameter of the first and second entrance and exit holes 113 and 123 is preferably 0.3 to 0.5 mm. It is also possible to form an oval.

A first recess 112 protruding rearward is formed on a surface of the first body 111 of the front housing 110 and a plurality of first entrance and exit holes through which air can enter and exit the first recess 112. 113 is formed, a second groove portion 122 protruding forward is formed on the surface of the second body 121 of the rear housing 120 and a plurality of air through which air can enter and exit the second groove portion 122. The second entrance and exit hole 123 is formed.

The first and second grooves 112 and 122 are preferably formed in the form of circular grooves having a diameter of 2 to 3 mm and a depth of 1 to 1.5 mm, and have a circular shape of 0.3 to 0.5 mm in the first and second grooves 112 and 122. One or more penetrating first and second entrance and exit holes 113 and 123 are each formed, and preferably 3 to 5 are formed. Of course, the size of the first and second grooves 112 and 122 and the first and second entrance and exit holes 113 and 123 can be variously designed and modified, and the degree of deformation is all within the scope of the present invention.

According to such a structure, the first and second grooves 112 and 122 pressurize the filtration filter 130 seated in the accommodation space 100a to enable stable support and the number of the first and second entrance and exit holes 113 and 123. Can be increased to induce a smooth air intake.

In the rear of the front housing 110 and the front of the rear housing 120, the antibacterial coating layer (115, 125) using tourmaline or phytoncide stock solution or diluent excellent in odor removal, particulate dust removal, antibacterial, formaldehyde decomposition efficacy More is formed. Accordingly, the transmission or diffusion of bacteria can be blocked by removing the fine dust and bacteria in the air introduced into the accommodation space 100a through the first and second entrance and exit holes 113 and 123 and exhibiting antibacterial effects. In particular, when the phytoncide stock solution or diluent is applied to form the antimicrobial coating layers 115 and 125, there is also an advantage in which a refreshing feeling can be felt.

At this time, the phytoncide diluent can be used by diluting to various concentrations as necessary, for example, the phytoncide stock solution and water can be used by mixing in a weight ratio of 1: 100 ~ 10: 100.

In addition, the filtration filter 130 uses a nonwoven filter to collect dust in the outside air introduced into the accommodation space 100a through the first entrance and exit hole 113 of the front housing 110, but a hepa filter as necessary. You can also use (Hepa Filter). Of course, in addition to the nonwoven fabric filter and the HEPA filter, various filters may be selectively used or various filters may be stacked and provided in the accommodation space 100a.

The filtration filter 130 is positioned between the preformed front housing 110 and the rear housing 120, and then the first and second contact parts 114 and 124 formed along the edges of the front and rear housings 110 and 120. The junction part P1 is stably positioned in the accommodation space 100a.

In addition, the upper and lower support members 140 and 150 may be flexible and may apply an adhesive to the second contact portion 124 formed along the edges of the front and rear housings 110 and 120, or may be thermally bonded to the second contact portion 114. P2) can be formed. In this case, when the bonding portion P2 is formed by thermal fusion, the upper and lower support members 140 and 150 may be made of a nonwoven fabric of PP or PE so as to enable thermal fusion to the second adhesion portion 24.

The upper and lower support members 140 and 150 have one end fixed to the upper and lower edges of the front and rear housings 110 and 120, that is, the first and second close parts 114 and 124, and the other end is fixed to the face of the user. Close contact. In this case, in order to prevent the lifting of the adhesion between the nose and the ball and to prevent slipping is fixed to the inner surface of the upper support member 140, the nose support hole 160 made of silicone material is in close contact with the nose.

At this time, the nose support hole 160 is formed with a nose seating groove 162 to be in close contact with the nose, the deformation state when an external force such as a wire is applied between the inner surface of the upper support member 140 and the nose support hole 160. The shape control metal material 170 to be maintained is provided to properly press or bend the shape control metal material 170 according to the shape of the user's nose to maintain the shape deformation of the nose support 160 to be in close contact with the nose. In this case, the shape control metal material 170 is installed in a hidden state to prevent skin damage.

Such a nose support 160 is formed inside the hollow portion 164 is pressed by the nose, and naturally wrap around the nose.

The upper and lower support members 140 and 150 may be folded up and down around the junction part P2 according to a nonwoven fabric made of PP or PE. Therefore, before using the mask 1, the other ends of the upper and lower support members 140 and 150 are folded toward the rear side of the rear housing 120, and when the mask 1 is used, the other ends of the upper and lower support members 140 and 150 are used. The other ends of the upper and lower support members 140 and 150 may be flipped and extended to the upper and lower sides of the rear housing 120 so as to be in close contact with the face.

And the fixing portion 200 to be fixed to the user's ear or the rear end of the head on both ends of the mask body 100 can be used as a wire-shaped earrings 201 as shown in the general figure, The left and right band portions surrounding the back of the head are provided at both ends of the head 100, and the left and right band portions are coupled to the male and female velcro tapes, respectively.

Such fixing part 200 can be made in a variety of shapes are all within the scope of the present invention is obvious.

On the other hand, the exhalation filter assembly 300 is provided in the center of the mask body 100 to quickly discharge the air when the user exhales in the through portion 101 formed in the center of the mask body 100 Are assembled. In this case, the mask body 100 may be manufactured by injection molding with a synthetic resin material or by heat pressing the film or by using only a nonwoven fabric to form the through part 101 at the center thereof and assemble the filter assembly 300 for exhalation. have.

The exhalation filter assembly 300 is fitted to the through portion 101 at the rear of the mask body 100, but is supported by the first mounting portion (3) in front of the partition 312 having a plurality of air discharge holes (312a) ( 313 is formed and the second seating portion 314 is formed in the rear and the base frame 310 and the first seating portion 313 of the base frame 310 is seated in the air discharge hole (312a) A plate-shaped silicon pad 320 to be opened and closed, a closing cap 330 coupled to the first half of the base frame 310 at the front of the mask body 100 and having a vent hole 332a formed therein, and the base frame ( It is composed of a replacement filter 340 detachably provided in the second seating portion 314 of 310.

First, a penetrating portion 101 is formed in the center of the mask body 100, and a supporting portion 101a is formed along an edge of the penetrating portion 101. The support portion 101a is for stably supporting the exhalation filter assembly 300, and the support portion 101a is formed to couple the front and rear housings 110 and 120 to the first and second close parts 114 and 124. Likewise, the front and rear housings 110 and 120 may be integrally coupled to each other by applying a fusion or adhesive to prevent the internal filter means 130 from being exposed to the outside.

The base frame 310 is fitted from the rear side to the front portion 101 of the mask body 100.

At this time, the base frame 310 is manufactured by injection molding with a synthetic resin material such as rubber or PP, and the first seating portion 313 and the second seating portion 314 to the front and rear of the body 311 having a cylindrical shape The partition wall 312 divided by) is formed, and the plurality of air discharge holes 312a are formed in the partition wall 312 while maintaining a predetermined distance from the center and the plurality are radially maintained at a predetermined interval. The air discharge hole 312a performs a passage function of discharging air from the second seating portion 314 to the first seating portion 313 when the mask 1 user exhales. The first supporting jaw 315 is supported on the rear surface of the body 311 of the base frame 310 on the rear surface of the support portion 101a formed along the edge of the through portion 101 of the mask body 100. It is formed, the first catching jaw 316 for coupling the closing cap 330 is formed on the front outer surface of the body 311.

On the other hand, the silicon pad 320 is to be seated on the first seating portion 313 of the base frame 310, the second seating portion 314 of the base frame 310 in the direction of the first seating portion 313. When the air moves, the air discharge hole 312a of the partition 312 is opened, and when the air moves from the first seating portion 313 toward the second seating portion 314, the air of the partition 312 is moved. It functions to close the discharge hole (312a).

The silicon pad 320 is in close contact with the front surface of the partition 312 of the base frame 310 and the center portion is pressed by the closing cap 330. 2 The air moves from the seating portion 314 toward the first seating portion 313, the edge is flipped forward, the air outlet hole 312a of the partition 312 is opened, and there is no air flow or inhalation of the mask user. The air discharge hole 312a of the partition 312 may have an edge due to the restoring force of the silicon pad 320 or the movement of air from the second seat 314 of the base frame 310 toward the first seat 313. Will be closed.

At this time, the silicon pad 320 is provided with a plurality of elastic wings 322 partitioned along the edge portion 321, the second seating portion 314 of the base frame 310 during the exhalation of the mask user When the air moves in the direction of the first seating portion 313, the elastic wing 322 is further leaned forward by the air pressure and the opening area of the air discharge hole 312a formed at the edge of the partition 312 is further widened. There is this.

And the closing cap 330 is coupled to the first half of the base frame 310 in front of the mask body 100 to move the air moved from the second seating portion 314 toward the first seating portion 313 to the outside A vent hole 332a for discharging is formed.

At this time, the closing cap 330 is manufactured by injection molding with a synthetic resin material such as rubber or PP, the body 331 is formed with a space portion 333 opening to the rear side and on the inner wall surface of the space 333 A second catching jaw 334 for coupling the base frame 310 is formed, and the first seating portion 313 of the base frame 310 in the center of the space portion 333 in the center of the body 331 A pressing protrusion 335 is formed to press the central portion of the silicon pad 320 seated on the center portion of the partition 312 of the base frame 310, and a plurality of vent holes 332a are formed along the front edge of the body 331. The net part 332 which has) is formed. In this case, the net part 332 may be integrally formed when the closing cap 330 is formed by injection molding, but the net part 332 is made of a metal net and integrally formed by inserting and inserting the finishing cap 330 during molding. It is also possible.

In addition, a second support jaw 336 is further formed on the rear outer surface of the closing cap 330 and is supported on the front surface of the support portion 101a formed along the edge of the through portion 101 of the mask body 100.

According to this structure, the first supporting jaw 315 is inserted into the penetrating portion 101 of the mask body 100 by inserting the body 311 of the base frame 310 into the penetrating portion 101 of the mask body 100 from the rear side. The silicon pad 320 is seated on the first seating portion 313 while being supported on the rear surface of the support portion 101a formed along the edge, and the closing cap 330 is penetrated by the mask body 100. When the second catching jaw 334 is coupled to the first catching jaw 316 of the base frame 310 by pressing forward, the base frame 310 and the closing cap 330 are integrally coupled to prevent separation. .

In this coupled state, the pressing protrusion 335 of the closing cap 330 presses the center of the silicon pad 320 to the center of the partition 312 of the base frame 310 so that only the edge of the silicon pad 320 is forward. It is possible to be flipped. In addition, when the base frame 310 and the closing cap 330 is coupled, the support portion 101a in which the first support jaw 315 and the second support jaw 336 are formed along the edge of the through portion 101 of the mask body 100. It is in close contact with the back and the front of the shell, respectively, to prevent air from flowing in and out through the gap. This structure also simplifies the installation and assembly of the exhalation filter assembly 300 as a whole.

On the other hand, the replacement filter 340 is to be mounted on or detached from the second seating portion 314 of the base frame 310, after using a mask for one time replacement with a new replacement filter 340 This is for use. Such a replacement filter 340 may be made of natural or synthetic fibers, it is also possible to use a sponge as needed. Of course, the replacement filter 340 may be made of a laminated filter manufactured by laminating at least one of a natural fiber nonwoven fabric, a synthetic fiber nonwoven fabric, a sponge, and the like.

Such a replacement filter 340 has a volume (or appearance) relative to the receiving volume of the second seating portion 314 so as to prevent the separation when mounted on the second seating portion 314 of the base frame 310. It is preferable to make large.

In addition, the replacement filter 340 has a handle 342 protruding on one side of the rear end of the body 341 so that the body 341 of the replacement filter 340 has a second seating portion 313 of the base frame 310. When the handle 342 is mounted on the rear end of the base frame 310, the mask user can easily remove the handle 342 when the filter 340 is removed later.

The replacement filter 340 has an advantage of applying or spraying the phytoncide stock solution or diluent to make the antibacterial function as well as the refreshing feel during the use of the mask. At this time, the phytoncide diluent can be used by diluting to various concentrations as necessary, for example, the phytoncide stock solution and water can be used by mixing in a weight ratio of 1: 100 ~ 10: 100.

The replacement filter 340 is preferably provided in a sealed state in the packaging to prevent hygiene management and volatilization of the phytoncide scent of the new replacement filter 340 replaced by the mask user to use the packaging to tear off the packaging. .

On the other hand, Figure 7 is a view showing another embodiment of the present invention by molding the first and second body (111, 121) of the front and rear housing (110, 120) in a smooth form with a punch which is a known molding device The first and second entrance and exit holes 113 and 123 are drilled to form first and second burrs 113a and 123a along edges of the first and second entrance and exit holes 113 and 123. In this case, heat is applied during the punching process to maintain the shape after the first and second burrs 113a and 123a are formed along the edges of the first and second entrance and exit holes 113 and 123.

At this time, by pressing from the front to the rear of the first body 111 with a punch, the first burr 113a is formed at the rear of the second body 121 by forming a first entrance hole 113 irregularly formed at the rear. By pressing forward, the second burr 123a is molded into the second entrance and exit hole 123 irregularly formed forward.

Such first and second burrs 113a and 123a serve to first catch dust when entering and leaving the air. More specifically, the first burr 113a catches when the outside air flows through the first inlet / outlet 113 during inhalation of the user, and the second burr 123a catches air when the user exhales. It serves to hold when discharged through the second entrance and exit hole (123).

While the present invention has been shown and described with reference to certain preferred embodiments, the present invention is not limited to the above embodiments and those skilled in the art without departing from the spirit of the present invention. Various modifications may be made by the method.

1: mask 100: mask body
100a: accommodation space 110: front housing
111: first body 112: first groove
113: first entrance and exit 114: first close contact
115: antimicrobial coating layer 120: rear housing
121: second body 122: second groove
123: second entrance and exit 124: second close contact
125: antibacterial coating layer 130: filtration filter
140: upper support member 150: lower support member
160: nose support 170: shape control metal material
200: fixed portion 300: exhalation filter assembly
310: base frame 320: silicon pad
330: closing cap 340: replacement filter

Claims (4)

A mask body 100 surrounding the nose and mouth of the face of the user's face, a fixing part 200 that is fixed to the user's ear or wrapped around the back of the head at both ends of the mask body 100, and the mask body 100 of the mask body 100. It is assembled to the through-hole 101 formed in the center is configured to include a breathing filter assembly 300 for discharging the air during the exhalation of the user and block the inflow of air when inhaling;
The exhalation filter assembly 300 is fitted to the through part 101 at the rear of the mask body 100, but is supported by the partition 312 having a plurality of air discharge holes 312a in front of the first seating part 313. ) Is formed and the second seating portion 314 is formed in the rear and the base frame 310 and the first seating portion 313 of the base frame 310 is seated in the opening and closing the air discharge hole (312a) The plate-shaped silicon pad 320, the front end of the mask body 100, the cap 330 is coupled to the first half of the base frame 310, the vent hole 332a is formed, and the base frame 310 It consists of a replacement filter 340 detachably provided in the second seating portion 314 of the;
A through portion (101) is formed in the center of the mask body (100), and a support portion (101a) is formed along an edge of the through portion (101);
The base frame 310 is formed with a partition wall 312 dividing the front and rear of the body 311 having a cylindrical shape into the first seating portion 313 and the second seating portion 314, the partition 312 There is a plurality of air discharge hole (312a) is formed to maintain a certain distance from the center and a plurality of radially to maintain a predetermined interval, the front outer surface of the body 311, the first cap for coupling the closing cap 330 A catching jaw 316 is formed;
The silicon pad 320 is in close contact with the front surface of the partition 312 of the base frame 310 and the center portion is provided to be pressed by the closing cap 330 so that the second seating portion 314 of the base frame 310 is provided. When air moves in the direction of the first seating portion 313, the air discharge hole 312a of the partition 312 is opened, and when air moves in the direction of the second seating portion 314 from the first seating portion 313. Closing the air discharge hole 312a of the partition 312;
The closing cap 330 is formed of a space portion 333 opened to the rear side of the body 331 and the first hanging jaw 316 of the base frame 310 on the inner wall surface of the space portion 333 2 engaging jaw 334 is formed, the center of the body 331, the central portion of the silicon pad 320 seated on the first seating portion 313 of the base frame 310 in the center of the space portion 333 The pressing protrusion 335 is formed to press the center portion of the partition 312 of the base frame 310, the net portion 332 having a plurality of vent holes 332a is formed along the front edge of the body 331. Mask provided with a breathable filter assembly, characterized in that.
The method of claim 1,
The base frame 310 has a first support jaw 315 supported on the rear surface of the support portion 101a formed along the edge of the through portion 101 of the mask body 100 on the rear outer surface of the body 311. Is formed;
The silicon pad 320 is provided with a plurality of elastic wings (322) divided into cutouts (321) along the edge;
On the rear outer surface of the closing cap (330) is formed a second support jaw (336) that is supported on the front surface of the support portion (101a) formed along the edge of the through portion 101 of the mask body (100);
The replacement filter 340 is a handle that the mask user can pull when removing the replacement filter 340 seated on the second seating portion 314 of the base frame 310 on one side of the rear end of the body 341. Mask with a breathable filter assembly, characterized in that the 342 is protruded.
The method of claim 1,
The mask body 100 is made of a synthetic resin material, and the front and rear housings 110 and 120 formed with a plurality of first and second entrance and exit holes 113 and 123 through which air can enter and exit the surface, and the front and rear housings ( 110, 120 is provided between the filtration filter 130 for filtering fine dust, and one end is integrally fixed to the upper and lower borders of the front and rear housing (110, 120) and the other end is in close contact with the user's face And a lower support member (140, 150) is provided with a breath filter assembly characterized in that the mask.
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