Positive pressure mask

Abstract

The present invention relates to a positive pressure mask which covers the face of a user through a dual structure so that filtered air reaches a positive pressure equal to or greater than atmospheric pressure inside for the user to breathe, and which can filter and discharge gas exhaled by the user, the positive pressure mask comprising: a base part provided with an inhalation valve corresponding to breathing through the nose; a cover part for dividing the base part and the space; a supply unit for supplying filtered air; one end of the exhaust pipe is communicated with the space between the nose of the user and the base part, and the other end extends to the outer side of the base part and / or the covering part; the exhaust valve is arranged on a pipeline of the exhaust pipe; and an exhaust filter provided on a line of the exhaust pipe, the suction valve and the exhaust valve having check valves that are opened in accordance with a state of correspondence between a pressure of a space between the base and the cover and a pressure of a space between the periphery of the nose of the user and the base.

Description

Technical Field

[0001] The present invention relates to a positive pressure mask, that is, it covers the user's face through a double structure, continuously supplies filtered air to maintain its internal air pressure above normal pressure, thereby supplying air when the user inhales, and filtering the user's exhaled air by distinguishing and discharging the supplied air from the user's exhaled air. Background Art

[0002] In recent years, society's attention on masks has focused on their use to prevent diseases caused by fine or ultrafine particles caused by fossil fuels and to prevent infection by infectious pathogens in the form of bioaerosols (droplets) such as the 2019 novel coronavirus (Covid 19, hereinafter referred to as "new crown").

[0003] In particular, the infection route of the new coronavirus, which has attracted much attention recently, is known to be transmitted to people through direct contact between hands or bodies or oral or nasal secretions in the form of droplets such as breathing or coughing through the eyes, nose, mouth, etc.

[0004] Among the infection routes, contact infection can be blocked by keeping distance or using disinfectants such as the new coronavirus, and respiratory infections caused by secretions in the form of droplets can be blocked by wearing protective masks that can filter particles of a preset specific size in the air.

[0005] Most importantly, the best way to prevent the spread of infections such as COVID-19 is to block the influx of infection sources and safely remove them.

[0006] However, users need to take off their masks when eating. When eating in this way, the new coronavirus infection sources in the air may enter the user's respiratory system through the nose and mouth along with the food.

[0007] Moreover, masks cannot protect the user's eyes, and the new coronavirus infection sources in the air may cause infection through the eyes or actions such as wiping tears with hands.

[0008] In addition, when users who wear glasses wear masks, their exhaled breath will leak out through the gap between the nose and cheek, causing inconvenience in using the mask, such as fogging on the lens surface. Summary of the Invention

[0009] Technical issues

[0010] The object of the present invention is to provide a positive pressure mask, that is, to enable a user to stably inhale safe air through a sterile filter when breathing, and to discharge the gas exhausted by the user in a filtered state, thereby preventing the user and other people around him from being infected by pathogens.

[0011] Furthermore, another object of the present invention is to provide a positive pressure mask, that is, to supply safe air to the mouth used for taking food when the user eats to block the influx of external sources of infection, and during the inhalation and exhalation process, the nose area used for breathing can enable the user to avoid the risk of infection caused by pathogens.

[0012] In addition, another object of the present invention is to provide a positive pressure mask, that is, it can prevent users from being infected with pathogens through the eyes in daily life.

[0013] Technical Solution

[0014] The characteristic structure of the positive pressure mask of the present invention may include: a base, covering the nose and the cheek area around it from the fundus of the user's eyes to the philtrum, and an inhalation valve is provided corresponding to breathing through the nose; a covering part, facing the base, combined with each other along the edge portion, and dividing a space between the base and the covering part; a supply part, connecting the supply pipe to the space between the base and the covering part to supply filtered air; an exhaust pipe, one end of which is connected to the space between the user's nose and the base, and the other end extends to the outside of the base and / or the covering part; an exhaust valve, arranged on the pipeline of the exhaust pipe; and an exhaust filter, arranged on the pipeline of the exhaust pipe, for filtering the exhausted air, the inhalation valve is a check valve, which opens when the pressure in the space between the base and the covering part is greater than the pressure in the space between the user's nose and the base, and the exhaust valve has a check valve, which opens when the pressure in the space between the user's nose and the base is greater than the pressure in the space on the exhaust pipe.

[0015] Effects of the Invention

[0016] According to the present invention, filtered clean air is supplied to the space between the base and the covering portion through the supply portion to maintain a positive pressure state, so that during the user's inhalation process, air can be smoothly supplied through the inhalation valve provided on the covering portion, and the user's exhaled air is discharged through the exhaust valve through the exhaust pipe and the exhaust filter, thereby preventing the infection source that the user may carry from being transmitted to others.

[0017] In addition, due to the positive pressure between the base and the covering part, clean air is supplied to the user's eyes through the first opening and closing part, thereby forming an environment similar to a positive pressure state around the user's eyes, which not only inhibits external pathogens from infecting the user's eyes through the user's eyes, but also has the effect of preventing users wearing glasses from experiencing problems such as fogging on the lens surface.

[0018] In addition, due to the positive pressure in the space between the base and the covering part, clean air is supplied through the second opening and closing part to form an air curtain effect, which can prevent external pathogens from approaching even if the user only takes food with the area around the mouth open, thereby inhibiting user infection.

[0019] In addition, the mouth covering portion of the present invention can be opened and closed according to the user's convenience so that clean air can be supplied to the user's nose during the user's food intake process, and the consumption area can be minimized by only removing the mouth covering portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention briefly shows an exploded perspective view of a positive pressure mask according to an embodiment of the present invention, which is used to explain the structure of the positive pressure mask and the arrangement and combination relationship of its various structures.

[0021] Figure 2 To briefly illustrate the combination Figure 1 A cross-sectional view of the user wearing state in which each structure is in state.

[0022] Figure 3 For the purpose of briefly illustrating Figure 1 and Figure 2 A cross-sectional view showing an example of an inlet valve and an exhaust valve being provided on the nose cover portion and their working relationship.

[0023] Best Practice

[0024] The best embodiment of the present invention may include: a base, covering the nose and cheek area of the user from the fundus to the philtrum, and corresponding to the breathing through the nose, an inhalation valve is provided; a covering part, facing the base, combined with each other along the edge portion, and dividing a space between the base and the covering part; a supply part, connecting the supply pipe to the space between the base and the covering part to supply filtered air; an exhaust pipe, one end of which is connected to the space between the user's nose and the base, and the other end extends to the outside of the base and / or the covering part; an exhaust valve, arranged on the pipeline of the exhaust pipe; and an exhaust filter, arranged on the pipeline of the exhaust pipe, for filtering the exhausted air, the inhalation valve is a check valve, which opens when the pressure in the space between the base and the covering part is greater than the pressure in the space between the user's nose and the base, and the exhaust valve has a check valve, which opens when the pressure in the space between the user's nose and the base is greater than the pressure in the space on the exhaust pipe. DETAILED DESCRIPTION

[0025] When describing the present invention, the expression "front part" or "front surface" refers to the direction facing the user in each structure when the user is wearing it or the surface located in said direction, and the expression "rear" or "rear surface" refers to the direction opposite to the front and the front surface or the surface located in said direction, and refers to the direction facing the user's cheek based on the user's wearing state and the surface located in said direction, so as to describe the present invention.

[0026] In addition, when describing the present invention, the expression "upper side" refers to the direction opposite to the action of gravity or the part located in the said direction based on the upright state of the user wearing the present invention, and the expression "lower side" refers to the direction in the same direction as the action of gravity or the part located in the said direction based on the same reference as the upper side.

[0027] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0028] like Figure 1 or Figure 2 As shown, the positive pressure mask of the present invention comprises a base 10, which covers the area from the fundus of the eye to the nose and cheeks of the user.

[0029] Such a base 10 forms a nose covering portion 12 at a transverse center portion thereof to correspond to and cover the nose of the user.

[0030] In addition, as described below, an inhalation valve 12a is provided in the nose cover 12. When the pressure in the space A / S between the base 10 and the cover 20 is higher than the positive pressure in the space B / S formed around the user's nose and the base 10, the clean air filtered by the air supply part 50 can flow smoothly toward the user's nose.

[0031] Preferably, the inhalation valve 12a is configured as a check valve, which blocks the air from flowing from the space B / S between the user's nose and the base 10 to the space A / S between the base 10 and the cover 20. Air flow occurs only when the air pressure state of the space A / S between the base 10 and the cover 20 differs from the pressure state of the space B / S between the user's nose and the base 10 due to the user's inhalation, thereby controlling the air to flow in one direction.

[0032] Among them, such as Figure 3As shown, as an example of an inhalation valve 12a, a ventilation part is formed in a portion of the nose cover 12, such as a network structure composed of one hole or a plurality of holes, or a ring-shaped member is provided through the hole. One side of a thin film-shaped flexible member is fixed to the ventilation part. When the air pressure in the space A / S between the base 10 and the cover 20 is greater than the air pressure in the space B / S between the user's nose and the base 10 to a sufficient degree to deform the thin film member, or when the user inhales and the space B / S between the user's nose and the base 10 is in a low pressure state, the thin film member deforms, thereby opening the ventilation part. When the user exhales and the air pressure in the space B / S between the user's nose and the base 10 is greater than the air pressure in the space A / S between the base 10 and the cover 20, the thin film member blocks the ventilation part. part), blocking the air from flowing from the space B / S between the user's nose and the base 10 to the space A / S between the base 10 and the cover 20.

[0033] Of course, various types of check valves can be used for this type of suction valve 12a.

[0034] In addition, the nose cover 12 can be connected to the exhaust pipe 14, which is used to discharge the air flow generated by the user's exhalation to the outside in the space B / S between the user's nose and the base 10. In this case, an exhaust valve 12b in the form of a check valve is provided on the part of the nose cover 12 connected to one end of the exhaust pipe 14 or on the pipeline of the exhaust pipe 14 including one end of the exhaust pipe 14 near the said part. The exhaust valve 12b in the form of a check valve allows air to flow in the opposite direction of the inhalation valve 12a, that is, from the space B / S between the user's nose and the base 10 to the exhaust pipe 14, and blocks the air flowing in the opposite direction.

[0035] On the other hand, the base 10 can form a first combining portion 10a, which is combined with the edge portion of the corresponding covering portion 20 along the edge portion, thereby dividing the internal space between the base 10 and the covering portion 20. In addition, the base 10 can also form an airtight maintaining portion 10b, which is tightly attached to the relative user's facial surface along the edge portion of the rear surface, thereby preventing the air generated by the user's exhalation from leaking out.

[0036] In this case, the airtightness maintaining portion 10b can be made of silicone or a material similar to silicone that is flexible and has good airtightness and can fit tightly against human skin when in contact.

[0037] In addition, in the present invention, a cover 20 is provided on the front surface of the base 10 . The cover 20 is opposite to the base 10 , and the edge of the base 10 is connected to the corresponding edge of the cover 20 .

[0038] On the other hand, the present invention includes a supply unit 50 that filters and supplies air through a supply pipe 52 that penetrates and connects the space between the base 10 and the cover 20 .

[0039] The supply unit 50 forcibly draws in external air using a fan or a pumping device, and pressurizes the air into the space between the base 10 and the cover 20 through the supply pipe 52 .

[0040] Furthermore, a supply filter 54 is provided in the air flow space formed by the supply unit 50 including the supply pipe 52 . The supply filter 54 is used to filter pathogens or fine particles that are infectious sources contained in the flowing external air.

[0041] That is, after the supply part 50 is started, the external air is pressed into the space divided between the base 10 and the covering part 20. The external air flowing from here passes through the supply filter 54 provided on the supply part 50 including the supply pipe 52, thereby forming clean air that filters out pathogens such as infection sources and fine particulate matter, and moves to the space between the base 10 and the covering part 20.

[0042] The clean air thus moved is inhaled by the user through the inhalation valve 12 a due to the pressure difference between the space between the base 10 and the cover 20 and the space between the user's nose and the nose cover 12 caused by the user's inhalation.

[0043] Furthermore, the present invention includes an exhaust pipe 14 for guiding the exhalation of the user.

[0044] One end of the exhaust pipe 14 can communicate with the space between the user's nose and the base 10 , that is, the space between the nose and the nose cover 12 , and the other end extends to the periphery of the base 10 through the rear surface of the base 10 .

[0045] As another example, the exhaust pipe 14 can extend through the nose cover 12 through the space between the base 10 and the cover 20, and then extend through a set position of the cover 20 to the outside, or extend through the nose cover 12 along the space between the base 10 and the cover 20 to the outside of the edge.

[0046] In addition, the exhaust pipe 14 may be provided with an exhaust valve 12 b at a portion where the nose cover 12 and the cover 20 contact each other, so that the exhaust valve 12 b itself may constitute the exhaust pipe 14 .

[0047] Although Figure 1The exhaust port 20c is shown to be formed at any position of the cover portion 20, and the other end extending through the exhaust port 20c is protruded, but the present invention is not limited thereto. Preferably, the exhaled air can be discharged smoothly through the exhaust valve 12b.

[0048] And, in Figure 1 The exhaust valve 12b provided at one end of the exhaust pipe 14 is shown to be formed on the nose cover 12, but the present invention is not limited thereto. One end of the exhaust pipe 14 may pass through the nose cover 12 and be close to the user's nose.

[0049] In addition, an exhaust filter 56 for filtering exhaust air is provided between one end and the other end of the exhaust pipe 14 .

[0050] The exhaust filter 56 , like the supply filter 54 , is preferably configured as a check valve that opens when the pressure in the space between the base 10 and the area around the user's nose reaches or exceeds normal pressure.

[0051] In addition, a separate exhaust pump 58 can be connected to the other end of the exhaust pipe 14 to ensure that the user's exhaled breath can be discharged smoothly through the exhaust filter 56. This exhaust pump 58 can have the same structure as the supply part 50, except that the air flow direction is opposite.

[0052] This discharge pump 58 is only used to compensate for the situation where the flow is not smooth due to the exhaust filter 56 when the user's exhalation passes through the exhaust pipe 14. It is used to make the pressure inside the exhaust pipe 14 lower than the air pressure between the user's nose and the base 10. The discharge pump 58 is not necessarily provided. If the air can be discharged smoothly through the exhaust pipe 14 through the exhaust valve 12b, the discharge pump 58 can be omitted.

[0053] Preferably, the supply filter 54 and the exhaust filter 56 are selectively removable and replaceable using a common method.

[0054] On the other hand, a mouth cover 30 for covering the user's mouth may be provided at the lower portion of the base 10 or the cover 20 , and the mouth cover 30 may be selectively attached or detached.

[0055] The upper portion of the mouth covering portion 30 may be connected to the lower portion of the covering portion 20 or the lower portion of the base 10 by means of Velcro, a zipper or bonding, or may be formed integrally with the covering portion 20 to extend the shape of the lower portion of the covering portion 20 .

[0056] In addition, the mouth covering portion 30 can be made of a breathable flexible material in the form of an ordinary mask, with ordinary filters provided on the front surface, the back surface, and between the front surface and the back surface, and a strap can be provided on the lower side for elastically hanging on the user's chin.

[0057] In addition, a first opening and closing portion 16 may be provided at the edge of the base 10 and the covering portion 20 near the user's eyes. The first opening and closing portion 16 is used to control the discharge of air between the base 10 and the covering portion 20. A second opening and closing portion 20e may be provided at a portion corresponding to the area around the user's mouth. The second opening and closing portion 20e is used to control the discharge of air between the base 10 and the covering portion 20.

[0058] Among them, the first opening and closing part 16 can constitute a valve structure, opening or closing the air channel according to the user's choice, and the second opening and closing part 20e can be provided with one or more holes at the position corresponding to the area around the mouth in the covering part 20 so that air flows naturally toward the mouth, or it can also constitute the same valve form as the first opening and closing part 16.

Claims

1. A positive pressure mask, characterized in that: include: The base portion covers the area of the nose and cheeks from the user's fundus to the philtrum, corresponds to breathing through the nose, and is provided with an inhalation valve; The covering portion faces the base portion and is joined to the base portion along an edge thereof to define a space between the covering portion and the base portion; a supply portion connecting a supply pipe to the space between the base portion and the cover portion to supply filtered air; an exhaust pipe, one end of which is connected to the space between the user's nose and the base, and the other end of which extends to the outside of the base and / or the cover; an exhaust valve, disposed on the exhaust pipe; and The exhaust filter is arranged on the exhaust pipe to filter the exhausted air. The inlet valve is a check valve that opens when the pressure in the space between the base and the cover is greater than the pressure in the space around the user's nose and the base. The outlet valve is a check valve that opens when the pressure in the space between the base and the user's nose is greater than the pressure in the space on the outlet pipe.

2. The positive pressure mask according to claim 1, characterized in that It also includes a mouth covering portion, the upper side portion is selectively combined with or separated from the corresponding lower side portion of the base or covering portion, the lower side portion is hung on the user's chin by a downward pulling force, or is fixed to the lower side portion of the base or covering portion by an upward lifting effect, and the portion between the upper side and the lower side is made of a foldable or unfoldable material, and covers the area around the user's mouth when unfolded.

3. The positive pressure mask according to claim 2, characterized in that The mouth covering portion is made of a flexible material with air permeability, and filters are arranged on the front surface, the rear surface, and between the front surface and the rear surface.

4. The positive pressure mask according to claim 1, characterized in that A first opening and closing portion is further provided at a portion of the edge of the base and the cover close to the user's eyes, for controlling the discharge of air between the base and the cover.

5. The positive pressure mask according to claim 1, characterized in that: A second opening and closing portion is further provided at a location corresponding to the area around the user's mouth, for controlling the discharge of air between the base portion and the cover portion.

6. The positive pressure mask according to claim 1, characterized in that An airtightness maintaining portion is further provided at an edge portion of the rear surface of the base portion, for blocking the inflow or outflow of air from the space between the cheek surface of the user and the rear surface of the base portion.

Images