KR20230060410A - mask valve - Google Patents

Abstract

The present invention relates to a mask valve which is to exert filtration power with at least one layer even during exhaustion when an exhaust valve is operated on a mask made of multi-layered filtration layers. More specifically, an exhaust valve is coupled to through holes that are formed on a second layer and a layer on the front side thereof from a respirator of the multi-layered mask, so that when a user inhales, air is filtered through the entire layer, and when exhaling, air flows through holes for the exhaust valve in the layer on a respirator side where the exhaust valve is not attached and the layer where the exhaust valve is attached.

Description

mask valve {mask valve}

In the present invention, when an exhaust valve is operated in a mask made of multi-layered filtering layers, at least one layer exerts filtering power even during exhaustion, and more specifically, from the second layer toward the front of the respirator toward the front. By attaching an exhaust valve to one side of the through hole bound through the front filter material layer and providing a rear filter material layer on the rear side of the front filter material layer, air is filtered through all layers during inhalation breathing and rear filter material during exhaust breathing. The air is allowed to flow through the layer and the exhaust valve.

A mask with an exhaust valve formed by passing through the entire filtering layer is inevitably discharged, so its use is limited in the COVID-19 situation.

In addition, automatic valves such as exhaust valves for ordinary masks cannot determine the level of respiratory resistance by the user, and it is also impossible to determine the protective force to suit the situation.

Accordingly, the user selects a product whose protective power has been determined, such as KF80, KF94, or industrial use.

In addition, since an automatic valve such as an exhaust valve for a normal mask penetrates all layers, it is impossible to block droplet discharge, or it is impossible for a user to set an appropriate level even if the exhaust valve penetrates only some layers.

Korean Patent Registration No. 10-2293924 (2021.8.19) A mask device and its control method selectively operate a plurality of cleaners formed on one side of a front cover. Korean Patent Publication No. 10-2021-0048117 (May 3, 2021) mask is a mask made of an exhaust hole formed on an inner part of a main cover having a suction hole and a filter formed on the exhaust hole. Korean Patent Registration No. 10-1730083 (2017.4.19.) A mask equipped with an exhaust valve is an exhaust valve formed in the opening of the mask body, and the exhaust valve is integrally formed with the body. Korean Patent Registration No. 10-1439123 (September 2, 2014) anti-fog mask has an exhaust valve assembly integrally formed with an anti-fog member so as to cover the nose of the wearer.

In order to solve the above problems, the present invention allows filtering power to be generated in one or more layers while the exhaust valve is attached,

Even if the exhaust valve is operated, substances discharged during breathing, such as droplets, are not directly discharged in an unfiltered state by the exhaust valve, but are filtered and discharged through a layer that is not bound by the exhaust valve.

In the mask body having an exhaust valve in two or more layers of filter media from the rear respiratory side toward the front side and a mask having a head fastening portion on the mask body, the mask body has a through hole formed in the second layer from the respiratory side toward the front side or A front filter material layer having a through hole penetrating the front layers from the second layer toward the front from the respiratory side, an exhaust valve attached to one side of the front filter material layer through hole, and a rear filter material layer attached to the rear side of the front filter material layer. It is a valve mask characterized in that the air is filtered through the entire filter layer during inhalation breathing while wearing the mask, and the air flows through the rear filter material layer and the exhaust valve during exhaust breathing.

A mask having an exhaust valve on one or several layers of front filter material from the rear filter layer on the respiratory side toward the front side, the mask body having a head fastening portion, wherein the mask body has a through hole formed in the second layer from the respiratory side toward the front side. or a front filter material layer having through-holes penetrating the front layers from the second layer and bound thereto, and an exhaust valve bound to one side of the front edge of the through-holes; and a rear filter material layer provided at a rear side of the front filter material layer, wherein air is filtered through the entire filter material layer during inhalation breathing while wearing the mask, and air is filtered through the rear filter material layer and the exhaust valve during exhaust breathing. It is a valve mask characterized in that the flow.

A front and rear layer fastening part is provided on one side where the exhaust valve is fastened to the layer, so that the rear layer alone does not move backward during inhalation breathing.

A front and rear layer fastening part is provided on one side where the exhaust valve is fastened to the layer, so that the backward movement of the rear layer alone during inhalation is reduced.

The exhaust valve includes a valve opening fixing part.

The valve opening fixing unit of the exhaust valve includes a valve opening level setting unit to set the degree of opening of the valve moving unit.

Between certain layers of the mask body layer, a layer support supporting the shape of the layer or strengthening the position of the exhaust valve is provided.

The exhaust valve penetrates the third or fourth layer from the respiratory side toward the front and is attached to one side of the front edge of the through hole.

The front layer is the third or fourth layer.

The exhaust valve is provided in plurality.

A plurality of exhaust valves are respectively bound to through holes of different layers.

The exhaust valve has a support plate edge protrusion in which part or all of the support plate edge protrudes in the forward direction.

The exhaust valve is coupled to a through hole passing through the inner layer and bound to one side of an edge of the bound through hole.

The exhaust valve is formed on one side of the through hole connected through the entire layer.

The exhaust valve has a support plate on the rear side, a support plate through-hole formed on one side of the central part of the support plate, and a flexible valve moving part that is bound to cover the support plate through-hole from the front side, and a flexible valve moving part that covers the flexible valve moving part from the front side and presses one side of the valve flow part to move the valve flow It is to include a valve flow portion cover for positioning the portion.

The exhaust valve includes a support plate on the rear side, a support plate through-hole formed on one side of the center of the support plate, and a flexible valve moving part fastened to cover the support plate through-hole from the front side, and a valve flow fastening part so that one side of the valve flow part is bound to the support plate. formed by one of the

The exhaust valve includes a support plate having a network structure through which air flows, and a valve assembly coupled to the support plate. It is to bind some area of them.

The exhaust valve includes a support plate having a network structure through which air flows, and a valve recombination attached to the support plate. And, the side where the through hole of the valve recombination is visible touches the support plate so that part or all of the area is bound.

The exhaust valve includes a support plate having a mesh structure through which air flows, and a valve recombination attached to the support plate. It is provided, and a part or all of the area of the valve member in contact with the support plate is bound.

The backing plate is the back layer.

The valve material is made of a filter material.

An air filtering mask in which a mask body having an exhaust valve in a mask made of two or more layers of filter media and a head fastening portion formed so that the mask body covers a respirator, wherein the mask is formed from the second layer toward the front from the respirator side. An exhaust valve coupled to an edge of through-holes formed through the front layer, wherein the exhaust valve is coupled to cover the rear support plate, the support plate through-hole formed inside the support plate, and the support plate through-hole from the front. and a flexible valve flow part cover from the front, pressing and fixing one side of the valve flow part, and including a valve flow part cover having a through hole, the air is filtered through the entire layer when inhaling while wearing the mask, and the exhaust valve when exhausting. By allowing the air to flow through the exhaust valve of the layer on the respiratory side where is not bound and the exhaust valve on the layer where the exhaust valve is bound, the air filtered through at least one layer is utilized during intake and exhaust.

1 is an exhaust valve mask 100.

It is a mask composed of a mask body 200 and a head fastening part 201, and an exhaust valve 130 is fastened thereto.

The head fastening part 201 is a string or band for positioning the mask on the ears or head, and may include a fastening ring or utilize an elastic body, and in FIG. 1, it is formed on the back of the mask body 200 and is not visible.

2 shows that the exhaust valve 130 is a rectangular exhaust valve 150.

A support plate through hole 11 is formed in the support plate 10, and the support plate through hole 11 is covered from the front by covering the support plate hanger 21 of the valve flow part 20 over the valve flow part hanger 12, and valve oil The cover 30 covers the valve flow part 20 and presses and fixes the upper side of the valve flow part 20 so that the lower part of the valve flow part 20 opens and closes according to breathing, so that the exhaust valve operates.

If the valve opening fixing part 50 is directed toward the support plate through hole 11, a gap is formed between the valve moving part 20 located in the front side of the valve opening fixing part 50 and the support plate through hole 11, so that the support plate through hole 11 ) cannot be sealed,

In addition, even if the valve opening fixing part 1 (50-1) is lifted forward and spans the valve opening fixing part 1-1 ((50-1-1) of the valve moving part cover 30, the valve moving part 20 is the base plate Failure to seal the through hole 11,

Insert the valve opening fixing part 2 (50-2) on the upper side of the valve moving part cover (30) into the valve opening fixing part 2-1 (50-2-1) of the support plate and use it as a hinge type, but normally use the valve moving part cover If the inner side of (30) is in contact with the valve moving part, the exhaust valve can be lifted and operated when the lower part of the valve moving part cover (30) is lifted, and the exhaust valve is operated when the lower part of the valve moving part cover (30) is pressed. The valve can be pressed and not operated, and by setting the degree of opening and closing of the valve moving part 20 according to the degree of pressing up and down, the valve opening fixing part 2 (50-2) is the valve opening level setting part 51 functions can be combined.

When an inclined plate is formed in the valve opening level setting unit 51, a difference occurs in the degree of gap generation depending on the angle toward the support plate through hole 11, so that the user can set the desired level of air flow resistance and filtration power. do. In addition, the same effect can be achieved by pulling out the valve opening level setting part 1 (51-1) having a jaw formed on the protruding rod to the valve opening fixing part 1-1 (50-1-1) of the valve moving part cover (30). generate In addition, if the valve opening fixing part 2 (50-2) is stopped at a certain angle by forming a jaw or friction part according to the lifting angle, it is also possible for the user to set the desired level of air flow resistance and filtration power according to the stopping angle. . The valve opening level setting unit 51 can set the size of the support plate through-hole by increasing the area, and can be formed on the upper side surface, etc., and is a control unit that comes out of the valve moving part cover 30, the valve moving part cover ( It is also possible to manipulate the opening/closing level from the outside of 30).

It is preferable to form a moving part cover through-hole 31 in the valve flow part cover 30, and to form a moving part cover through-hole 31 at the bottom so that it faces downward even when droplets are discharged, and as shown in the drawing, the lower part of the front It is also possible to utilize all or part of the lower surface of the drawing, and it is preferable to form the height of the front and rear so as not to touch the filtering layer as much as possible.

It is to be bound to the layer at one or more of the back side of the support plate 10 and the support plate fastening part 15.

The height of the support plate 16 is preferably formed not high in consideration of the function of maintaining the sealing force of the valve and the flow distance of the valve.

In this way, a configuration in which the valve can automatically or manually control the opening and closing of the air flow is possible as a conventional technique, including other shapes presented herein.

3 shows that the exhaust valve 130 is a circular exhaust valve 150-1.

The valve moving part hanging part 12-1 is formed at the center of the grill support 17 formed in the supporting plate through hole 11-1 of the circular supporting plate 10-1, and the center of the valve moving part 20-1 is The support plate hanging part (21-1) protruding forward and backward is inserted into the valve floating part hanging part (12-1) and is positioned so that it can be moved forward and backward by friction or locking jaw, etc., so that the valve opening level setting part 3 (51-1) 3) to be used.

The valve moving part cover 30-1 covers the supporting plate 10-1 and the valve moving part 20-1 in a state where the supporting plate hanger 21-1 is inserted into the opening/closing level setting fitting 51-4. state, in the state where the valve opening level setting part 3 (51-3) protrudes out of the opening/closing level setting fitting part (51-4) of the valve moving part cover (30-1), the valve opening level setting part 3 (51-3 ) is pressed, the valve moving part 20-1 normally operates as a normal exhaust valve, and when the valve opening level setting part 3 (51-3) is pulled forward, the valve moving part 20-1 moves to the support plate 10-1. ) and the grill support 17, it can remain open even during intake and exhaust. The valve operation may be possible even without the valve moving part cover 30-1.

The intake and exhaust air is communicated through the moving part cover through hole 31-1, and in the drawing, three are visible at the bottom of the front and one at the bottom of the side.

FIG. 4 is a cross-sectional conceptual view in which the exhaust valves 150 and 150-1 are attached to the front side of the mask body 200 through which the layer through hole 240 passes and is attached.

In the left view of FIG. 4, the rear layer 1 (210) is located on the side of the face part 300 including the nose, and the front layer 1 (220), the front layer 2 (221), and the front layer 3 (222) are aligned in a straight line toward the front. Edges of the through-holes 240 through the layer are bound to each other, and the binding portion 15 of the exhaust valve 150 is attached to the front side of the hole through the layer 240. The front layers of the mask body 200 and the base plate fastening part 15 of the exhaust valve 150 are bound, and each layer is almost attached, but in the drawing, it is a conceptual diagram showing that it is spaced apart for easy identification.

4, the rear layer 1 (210) and the rear layer 2 (211-1) are located on the side of the face part 300 including the nose, and the front layer 1 (220-1) and the front layer 2 (221) are located in the front side. -1), the edge of the through-hole 240 part of the layer is bound to each other, and the fastening plate fastening part 15 of the exhaust valve 150 is fastened to the fastened front side. The front layers of the mask body 200 are bound to the base plate fastening part 15 of the exhaust valve 150, and each layer is almost attached, but in the drawing, it is a conceptual diagram showing that it is spaced apart for easy identification.

It is possible to bind the exhaust valve to the place where the edge of the through hole through the layer is bound, or to bind the edge of the through hole simultaneously while binding the exhaust valve to the through hole. It is also possible to bind to the frontmost layer of the front layer. Attaching to the through-hole rim of the exhaust valve can firmly bind the exhaust valve and reduce air leakage between the front layer through-holes.

A front and rear layer binding portion (230, 230-1) for binding either side of the rear layer (210, 210-1, 211-1) and the front layer (220, 221, 222, 220-1, 221-1) to each other By forming a, it is possible to reduce that the rear layer (210, 211-1) is sucked into the respiratory tract during inhalation breathing, and even if sucked in, it is sucked in together with the front layer so that at least the rear layer layer alone is not sucked in so that it is sucked in degree has been weakened. At this time, the degree of being sucked in varies depending on the strength of the layers of the filter medium, whether there is a support or not, and the number of front and rear layer binding parts 230 and 230-1, the formation position, shape, etc., and the breathing volume is small and the air flow resistance of the filter medium If this is small, it is also possible to prevent being sucked in.

The front and rear layer binding parts 230 and 230-1 may bind the rear layer to the rearmost layer of the front layer, may bind to the rearmost two layers of the front layer, or bind to all the front layers. This may be desirable for ease of fabrication. It is preferable to form the rear layer by binding all the layers as much as possible.

It is preferable that the front and rear layer fastening parts are provided on the rim of the hole passing through the front layer, but if the front and rear layer fastening parts are formed after the exhaust valve is fastened, it is also possible to form them slightly outside the through hole fastening part, and the rear layer flutters. In order to reduce this, it is preferable to form it close to the through hole or the exhaust valve.

If the front and rear layer binding parts are formed in multiple or large areas, or if the air flow resistance of the filter medium is low or the breathing volume is weak, the phenomenon of suction of the rear layer may be reduced or not occur.

The front layer is the one where the exhaust valves 150 and 150-1 are connected where the layer through hole 240 is formed, and the one where the through hole is not formed on the rear side of the front layer is the rear layer, and the front and rear layer connection parts are connected to each other. A weak layer that is bound to each other in the form of some points on the surface can look like a funnel, and this drawing is a conceptual diagram expressing the junction.

Even if the exhaust valve is attached, it is possible to use air filtered through at least one layer during intake and exhaust breathing.

Even if the exhaust valve is operated, substances discharged during breathing, such as droplets, are not directly discharged without being filtered by the exhaust valve, but are filtered and discharged through the rear layer where the exhaust valve is not attached.

A filtering action may be intensively generated only in some layers of the mask.

The rear layer can move to the rear during inhalation breathing to reduce fluttering or discomfort in contact with the skin.

Incidentally, the exhaust valve is designed to make it easy for the user to selectively apply suitable air flow resistance by taking into consideration the air pollution level or activity level, that is, the protective power and convenience. It is a mask that allows the user to timely select the desired level of comfort and protection depending on the degree to which the exhaust valve is opened and closed.

Depending on the change in the amount of air required for breathing, such as during normal times, conversation, or exercise, or the change in polluted conditions such as closed crowds or outdoors, either the method of lowering the air flow resistance and selecting comfort, or the method of increasing the filtration power even if the air flow resistance is high choice is possible

By opening only a part of the through hole, it is possible to adjust the airflow resistance or the protective force to a more desired level.

1 is an exhaust valve mask 100.
2 shows that the exhaust valve 130 is a rectangular exhaust valve 150.
3 shows that the exhaust valve 130 is a circular exhaust valve 150-1.
FIG. 4 is a cross-sectional conceptual view in which the exhaust valves 150 and 150-1 are attached to the front side of the mask body 200 through which the layer through hole 240 passes and is attached.

The present invention binds the exhaust valve to the second or third layer from the respirator of the multi-layered mask, so that air is filtered through the entire layer during intake, and the layer on the respirator side to which the exhaust valve is not attached during exhaustion. Air flows through the exhaust valve of the layer where the exhaust valve is mainly attached.

In addition, incidentally, the present invention can be expressed as a manually operated air flow control valve or a manual air flow switch. It allows the user to timely select the air flow resistance of the filtering face mask according to the situation, and can be applied to ordinary non-woven filters and cloth masks, and can be applied to cup-type (aka dome-type) masks and filter media made of thin layers. Even if it is not a mask used or a filtering face mask, a large part of the side covering the face is made of an air impermeable material, and it can be applied to a multi-use silicone mask that uses various filter media in some areas, and each filter media is front and rear. When used in, it can be referred to as a plurality of layers, and can be applied to a mask using two or more layers of filter media.

The exhaust valve can be made of any material to achieve the purpose of maintaining its shape and reducing air leakage, but it is preferable to make it lightweight, and the production of a flexible valve is made of silicone, flexible synthetic resin, rubber, etc. this is possible

This application is applied to a mask using mass-produced disposable filter material, and considers binding the exhaust valve to the filter material expressed as a layer of the mask. It is possible to apply the manufacturing process of a normal mass-produced mask in consideration of blocking other VOC generation, etc., and it is possible to prevent it from falling out when pressed, such as pressing it from both sides and holding it on the jaw, and manufacturing a normal mask valve It is possible to apply a process of doing and binding to a mask, and it is also possible to manually bind to a cloth mask or the like.

Although the exhaust valve may form the valve floating part hanging part 12 on one side of the rectangular shape as shown in the drawing, the grill is formed in the circular support plate through hole 11, and the central axis protrudes around the center of the grill. If you insert one protruding side of the part and use it as a handle, the valve can function by the action of the grill and the valve moving part. In this way, the shape of the valve flow part 20 coupled to one side of the rectangular support plate through hole 11 and the circular shape can be considered representatively, and it is possible to apply a normal valve technology similar to this.

Since the air traffic volume, breathing resistance, and filtration area of the mask filter material are determined according to the size of the layer through hole 240 and the valve support plate through hole 11, 11-1, the size of the exhaust valve and through hole is adjusted.

If the through hole of the exhaust valve is enlarged and the air flow rate is lowered, air may not flow through the mask filter material to which the exhaust valve is attached, and if the filtering power of the mask filter material is high and the air flow resistance is high, air may not flow through the mask filter material. there is.

The size of the exhaust valve is set in consideration of reducing the narrowing of the filtering area of the filtering face mask as much as the exhaust valve is formed.

When wearing the valve mask of the present application and exhaling, air flows through the rear filter material layer and the exhaust valve. At this time, if the size of the through-hole of the support plate of the exhaust valve is small or the air flow resistance of the filter medium is low, the through-hole of the exhaust valve can also is discharged, but may be partially discharged through the front filter material layer, but if the size of the exhaust valve aperture is appropriate and the amount of exhaust respiration is discharged at a weak intensity, and the air flow resistance of the front filter material layer is high, the exhaust flow is the rear filter material layer And the entire amount may be discharged through the plate through hole of the exhaust valve.

As shown in FIG. 4, by using one or more exhaust valves attached to two layers or three or more layers, the user can determine the level of contamination of others, such as air flow resistance and protection, and droplet discharge. It is easier to determine accordingly.

If the overlapping area of the valve flow part 20 around the support plate through hole 1 is reduced in order to form a large through hole, considering the possibility of air leakage, the size of the support plate through hole and the valve flow part 20 , hardness, elasticity, and durability are considered.

If the rear layer 210 is a layer with low filtering power, it can be used for the purpose of convenience-oriented droplet discharge reduction, and if it is a layer with high filtering power, it can be mainly used for the purpose of high filtering power.

If the filtering power of the rear layer is set to about KF80 or KF94, and the front layer to which the exhaust valve is attached has a filtering capacity of about KF80, then open and fix the exhaust valve, the filtering power of the rear layer is applied continuously. and the filtering power of the front layer are added and continuously exerted. In addition, if the exhaust valve is not controlled and opened during exhaust, the filtering power is exerted by the rear layer during exhaust and the entire layer during intake.

If the rear layer has low filtration power and the front layers formed with exhaust valves are stacked with high filtration power, high filtration power can be exhibited in a situation where precise filtration power is required while being used mainly for convenience.

In this way, it is possible to form a mask with KF80 and KF94 and a mask with low filtering power as a mask formed by stacking multiple layers with low filtering power, and select from among them.

The front and rear layer fastening parts 230 and 230-1 can reduce the phenomenon of fluttering back and forth, such as when the rear layer touches the front layer during breathing and moves backward to touch the skin, and around the layer through hole 240 to which the exhaust valve is fastened. If the front and rear layer fastening parts 230 and 230-1 are formed on one side, it is more preferable because it is close to a place with a lot of air traffic, but it can be formed on the mask body at a more distant distance or replaced with a central part or other junctions. It is possible to form a point, a line, or a small plane, and it is preferable to form the layer through hole at the part where it is bound.

Edges of the layer through-holes 240 perforated in the front layer 2 (221) and the front layer 3 (222) are bound to each other, and the support plate fastening part 15 of the exhaust valve 150 is fastened to the fastened front side.

The exhaust valve may be attached to the front side to which the layer through hole 240 is attached, or a separate support plate for fixing the support plates 10 and 10-1 may be further provided on the rear side of the front layer through hole to be inserted or connected to each other, and even at this time The main function of the exhaust valve is to occur in the middle or front side of the layer layer, and without a support plate, the support plate fastening part 15 of the exhaust valve is bound to the rear side of the layer through hole 240, and the exhaust valve flow part is provided by passing through the layer through hole It is also possible to form a thin valve with the same or similar thickness as the layer, and even if it is not thin, it is possible to span the middle of the layer layer in which the through hole is formed. It is possible to fasten the exhaust valve to one side of the layer appropriately, such as the front side. In addition, the layer through-hole and the through-hole of the exhaust valve support plate can be formed and connected so that they match exactly. For example, even if the through-hole layer is circular and the through-hole of the exhaust valve plate is formed in a square shape, the circular through-holes do not exactly match the size and shape of the layer through-holes. Although the relationship is small, it is desirable if they coincide. At this time, the square exhaust valve can be bound to one side around the circular layer through hole, and in this way, it is possible to apply conventional technology to properly position the exhaust valve on one side around the layer through hole. do. In addition, it is preferable that the exhaust valve is attached to the place where the rim of the layer through-hole is attached. At this time, when the exhaust valve is attached to the layer through-hole, it is also possible to have the rim of the layer through-hole attached at the same time. The rim and the rim of the exhaust valve or the rear surface of the exhaust valve are fastened. In this way, the exhaust valve attached to one side of the through hole of the front filter material layer, such as the exhaust valve attached to the edge where the layer through hole 240 of each layer is attached, can be realized by applying a conventional technique.

When the exhaust valve is opened and fixed, only the filtering power of the rear layer is continuously applied during intake, so breathing resistance is reduced and convenience is improved when suddenly going outdoors or when the need to wear a mask is reduced.

In the present application, the respiratory side is the rear layer, the front side is the front layer, the front side to which the exhaust valve is attached is the front layer, and the rear side is referred to as the rear layer herein. In the present application, the face part 300, which is the respiratory side, is in the rear direction, and the front layers (220, 221, 222) are located in the front side of the rear layer 210 and are in the front direction.

Substances discharged during respiration, such as droplets, are discharged in a state of being filtered through a desired layer according to the layer to which the exhaust valve is attached. The rear layer 210 may be made of two layers, and in this case, the air filtered through the two layers is basically communicated through the through hole.

If two or more exhaust valves are used, it is possible to selectively apply the air filtration force and air flow resistance in more detail, and it is possible to bind to different layers such as the third to fourth layers inside the layer.

The support plate fastening part 15 is a place where the front layers are attached to the exhaust valve, and the support plate fastening part 15 binds the edges of the incised and removed layers at the supporting plate fastening part 15 to seal the layer so that air does not leak. It is also possible to hang it so as not to leak to fit the size of the through hole, and it is also possible to bind to the base plate height 17. It is preferable that the through-hole edge portions of the layers adhere to the front or rear side of the support plate fastening part 15 so as to be overlapped, and the edge of the support plate may be the support plate fastening part. It is also possible to insert and cross the exhaust valve 150 at the rear of the incised layer through hole, and bind the layers to each other so that the layers do not swell.

In order to maintain the sealing power of the valve, the height of the support plate 16 allows the center side to be depressed in the horizontal direction or the lower side to protrude more than the upper side, so that the valve moving part 20 has a natural sealing force due to gravity in normal times. And, it is preferable to form it not high considering the operating distance of the valve.

If some or all of the through holes are opened and closed, it is possible to adjust the air flow resistance or the protective force to a more desired level. Even if all the through holes are opened, it may vary depending on the size of the through holes, but not all air flows through the exhaust valve. More air can flow into the layer of filter media attached to the valve.

In view of this, it is possible for the user to set the amount of air flowing through the through hole and the filter material layer by blocking the through hole, opening a part of the hole, opening a lot of the hole, or opening the whole hole.

If the through hole of the exhaust valve is enlarged and the air flow rate is lowered, air may not flow through the mask filter material to which the exhaust valve is attached, and if the filtering power of the mask filter material is high and the air flow resistance is high, air may not flow through the mask filter material. there is.

The size of the exhaust valve is set in consideration of the fact that the narrowing of the filtration area of the mask can be reduced by forming the exhaust valve.

As shown in FIG. 4, by using one or more exhaust valves attached to one layer or two or more layers, the user can adjust the level of air flow resistance and protection, and the level of consideration of other people's contamination, such as droplet discharge, according to the situation. Therefore, it is possible to determine

If the exhaust valve passing through the entire layer of the mask has a large through hole when the through hole is opened, it is possible for the intake and exhaust to pass through without air flow resistance, and it can be selected during very shortness of breath or smooth communication, etc. At this time, the mask It is preferable to smoothly discharge from the front of the respirator by forming on the lower side of the respiratory tract and to direct the discharge of droplets downward. It is preferable to use this as one of a plurality of manual open-flow openings and closings.

If the edge of the support plate is protruded forward to form a protrusion on the edge of the support plate, it is easy to use it as a support point when operating the valve moving part. It can be operated precisely and the mask layer can not be twisted, and can be manipulated more easily even when using two hands.

If the exhaust valve is attached to the front layer from the second front layer toward the front of the respiratory side of the multilayer layer, the filtering force is generated only in the front layer during exhaustion, so the discharge of droplets is reduced and the exhaust is facilitated, reducing the feeling of reluctance to wear a mask. It can be lowered, and during intake, the filtering power is generated in all layers of the mask, so the protective power of the mask is normally exhibited.

An exhaust valve is a conventional technology, and is an air flow control valve that includes a flexible flexible moving part that closes by itself during intake and opens by itself during exhaust according to air communication.

The valve flow part made of a flexible material of the exhaust valve can be manipulated by the user so that it does not close during intake and continues to open, or it can be operated so that it is closed during intake and opened during exhaust.

In order to continuously open the support plate through hole 11 by keeping the flexible valve moving part of the exhaust valve separated from the support plate, the valve opening fixing part 50 rotatably attached to the valve support plate 10 is connected to the valve support plate 10 and the valve oil It can be sandwiched between the copper parts (20).

Alternatively, the upper valve opening fixing part 2 (50-2) of the valve moving part cover 30 is rotated with the valve opening fixing part 2-1 (50-2-1) and the hinge in a state where the top of the valve support plate is recessed backward If it is fastened properly, the upper part of the valve moving part 20 is pressed when the valve moving part cover is flipped upward, so that the lower part of the valve moving part 20 can be lifted.

Alternatively, a handle having a locking jaw formed on one side of the valve moving part in a protrusion, depression, zigzag shape, etc. protrudes forward to form a valve opening level setting unit 51-1, and in normal breathing, a valve opening level setting unit 51-1. 1) is flowed normally, but the valve opening level setting unit 51-1 is pulled forward and the valve opening level setting unit 51-1 is crossed at the place where the fine groove of the valve moving part cover 30 is formed. The degree of opening of the valve moving part 20 can be set according to which locking step the level setting part 51-1 is hung.

In this way, the technical idea of setting whether or not the opening of the through hole is opened by forming the valve opening level setting unit (51, 51-1, 50-2, 51-3) so that the valve moving part is continuously separated from the support plate is a feature of the present application. , The configuration for setting whether or not the through hole is open or the degree of opening is possible to apply the same or similar conventional techniques, and by forming other valve flow cover holes on the lower side, the droplet discharge is directed downward or the valve flow part is firmly bound. For this purpose, the upper part of the valve moving part is pressed toward the upper part of the valve moving part cover, or the lower part protrudes forward more than the upper part and makes it inclined, or the horizontal direction of the central part is rearward It can be formed in accordance with a normal exhaust valve, such as being depressed toward the side.

The valve opening fixing part can perform filtration with only the rear layer even during intake, and by setting the valve opening level setting part, the degree of air pollution and convenience, the desired level of filtered air utilization, the activity level/oxygen demand, and the size of the through hole are considered. so that the user can choose.

The shape of the valve support plate 10, the valve moving part 20, the valve moving part cover 30, and the components of the present application and the shape of each through hole can be modified and technically applied even if they are circular, square, rectangular or other shapes.

The valve opening fixing parts (50, 50-1, 50-1-1, 50-2, 50-2-1, ) and the valve opening level setting parts (51, 51-1, 50-2, 51-3) are They operate organically, perform functions similar to each other, and can be used interchangeably. In addition, rectangular, circular, and similar exhaust valves can be used interchangeably in consideration of the purpose function, and the terminology of components can be mixed.

It is possible to apply the valve opening fixing part 50 of FIG. 1 to the circular exhaust valve 150-1 of FIG.

The rear layer is located behind the front layer to which the exhaust valve is attached, and each front and rear layer can be made of a plurality of layers.

The through hole represents one or more of the support plate through hole 11 and the moving part cover through hole 31, and may be collectively referred to as a support plate, a moving part, and a moving part cover.

The layer support may be a plastic structure that supports the shape of the mask between certain mask layers, and may be an ergonomic structure that blocks the respiratory tract and seals the face well. A synthetic resin, wire, lead wire, shape-retaining material, other thick filtering material, or a layer that is harder or thicker than other layers may be a layer support, and it is also possible to divert technology applied to a normal dome-type mask. If the exhaust valve is attached to the mask layer support, the exhaust valve can be positioned more firmly, and it is also possible to bind the exhaust valve together with the layers and the layer support.

The exhaust valve is bound to the through hole formed by passing through the inner layer except for the rearmost layer and the foremost layer and to which the rim portion is bound, and the exhaust valve is bound to the front and rear rim of the through hole or to one side of the middle of the length of the exhaust valve body, that is, the exhaust valve is connected to the inner layer through hole. As bound to one side of, in this way, the exhaust valve can not be exposed from the inside and outside, and can be filtered by all layers during inhalation respiration and filtered by at least two layers of the rearmost and frontmost layers during exhaust respiration. In addition, as an example, in a 5-ply layer mask, the inner layer means that the exhaust valve is formed on three layers except for the rearmost or foremost layer, or the exhaust valve is formed over the inner two layers. It is obvious that it is also formed on the inner layer.

The backing plate of valve recombination, in which valve materials are sequentially stacked so that some surfaces overlap each other, can apply conventional technology so that the rear layer of valve recombination can function, unless it is a valve with a very high degree of sealing, and it is a thin and lightweight layer It is easier to use in a mask equipped with a support. If the valve elements are composed of sequentially stacked filter media, it is possible to apply the valve to a larger area of the mask layer, but the filtering power may be reduced than that of the valve flow part made of silicone or rubber with good sealing power.

The front and rear filtering material layers can be expressed as all layers, and are the layer layers constituting the mask body.

In the present application, the layer is composed of a filter material, and, as in a conventional filtering face mask, some areas including junctions and seams may be made impermeable.

In addition, in the case of forming a through hole in a partial area of an air-impermeable material such as silicon or rubber and having filter media on the front and rear sides of the through hole, if it is composed of multiple layers of filter media, it falls within the scope of rights of the present application, and at this time, a thick filter media layer or filter media cartridge Even when using, it is referred to herein as a filter material layer.

Layer may be used in the meaning of “layer” in the dictionary meaning, and may mean a mask formed of multiple layers of filter media.

The layer through-hole 240 and the valve support plate through-holes 11 and 11-1 may be collectively referred to as through-holes.

In addition to thermal bonding, ultrasonic bonding, and high-frequency bonding, the mask and exhaust valve can be placed by friction, locking jaws, hinges, etc. It is also possible to firmly position the protrusion to press the mask layer so that it rotates or the flow is reduced, and as a conventional technique for binding the mask valve, it can be selectively used in consideration of sealing force and durability.

100 exhaust valve mask 130 exhaust valve
150 rectangular exhaust valve 150-1 circular exhaust valve
200 mask body 201 head joint
210 Back layer 1 211-1 Back layer 2
220 front layer 1 221 front layer 2
222 Front layer 3 230 Front and rear layer attachment part
240 layer through hole 300 facial part
10 support plate 11 support plate through hole
12 Valve floating part hanging part 15 Support plate fastening part
20 Valve moving part 21 Support plate hanging part
30 valve moving part cover 31 moving part cover through hole
50 Valve opening fixing part 50-1 Valve opening fixing part 1
50-2 Valve opening fixing part 2 51 Valve opening level setting part
51-1 Valve opening level setting part 1 51-3 Valve opening level setting part 3
51-4 Valve opening level setting fitting

Claims (18)

In the mask body having an exhaust valve on two or more layers of filter media from the rear respiratory side to the front and a mask having a head fastening part on the mask body,
The mask body includes a through hole formed in the second layer from the respiratory side toward the front; Or a through hole passing through the front layers from the second layer from the respiratory side to the front side; a front filter material layer formed; and,
an exhaust valve attached to one side of the through hole of the front filter material layer; and,
Including; a back filter material layer bound to the rear side of the front filter material layer,
A valve mask, characterized in that the air is filtered through the entire filter layer during inhalation breathing while wearing the mask, and the air flows through the rear filter material layer and the exhaust valve during exhaust breathing.
According to claim 1,
A valve mask, characterized in that the front and rear layer fastening part is provided on one side where the exhaust valve is fastened to the layer, so that the rearward movement is reduced by the rear layer alone during inhalation breathing.
According to claim 1,
The valve mask, characterized in that the exhaust valve comprises a valve opening fixing portion.
The method of claim 3,
Valve mask, characterized in that the valve opening fixing portion of the exhaust valve includes a valve opening level setting portion to set the degree of opening of the valve flow portion.
According to claim 1,
A valve mask, characterized in that a layer support is provided between any layer of the mask body layer to support the shape of the layer or to strengthen the position of the exhaust valve.
The method according to any one of claims 1 to 5,
The mask with the exhaust valve is a valve mask, characterized in that the front filter material layer is a front layer from the third or fourth layer from the respiratory side to the front side.
The method according to any one of claims 1 to 5,
The valve mask, characterized in that the exhaust valve is provided with a plurality.
The method of claim 7,
The valve mask, characterized in that the plurality of exhaust valves are bound to different layers, respectively.
The method according to any one of claims 1 to 5,
The exhaust valve is a valve mask, characterized in that a part or all of the support plate edge protrudes in the forward direction.
The method according to any one of claims 1 to 5,
The valve mask, characterized in that the exhaust valve is provided on one side of the front layer of the through hole formed in the inner layer.
The method according to any one of claims 2 to 5,
The valve mask, characterized in that the exhaust valve is formed on one side of the through hole bound through the entire layer.
The method according to any one of claims 1 to 5,
The exhaust valve has a support plate at the rear side, a support plate through-hole formed on one side of the central portion of the support plate, and a flexible valve flow portion that is bound to cover the support plate through-hole from the front side, and covers the flexible valve flow portion from the front side and presses one side of the valve flow portion to move the valve flow Valve mask characterized in that it comprises a valve flow portion cover for positioning the portion.
According to claim 1,
The exhaust valve includes a support plate on the rear side, a support plate through-hole formed on one side of the central portion of the support plate, and a flexible valve flow portion fastened to cover the support plate through-hole from the front side, and a valve flow fastening portion so that one side of the valve flow portion is bound to the support plate. A valve mask, characterized in that.
According to claim 1,
The exhaust valve includes a support plate having a network structure through which air flows, and a valve assembly coupled to the support plate. A valve mask characterized in that some areas of the pieces are bound.
According to claim 1,
The exhaust valve includes a support plate having a network structure through which air flows, and a valve assembly coupled to the support plate. A valve mask characterized in that it is provided, and the side where the through hole of the valve recombination is visible touches the base plate so that part or all of the area is bound.
According to claim 1,
The exhaust valve includes a support plate having a network structure through which air flows, and a valve recombination attached to the support plate. A valve mask characterized in that a part or all of the area of the valve member in contact with the support plate is bound.
The method according to any one of claims 14 to 16,
The valve mask, characterized in that the support plate is a rear layer.
The method according to any one of claims 14 to 16,
The valve mask, characterized in that the valve material is a filter material.

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