CN218790693U

CN218790693U - Novel virus protective mask

Info

Publication number: CN218790693U
Application number: CN202220352312.9U
Authority: CN
Inventors: 李越峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2023-04-07
Anticipated expiration: 2032-02-22

Abstract

The utility model belongs to the technical field of protective articles, specific saying relates to a novel virus protective facial mask. The main technical scheme of the mask comprises an inner non-woven fabric outer layer, an outer non-woven fabric outer layer, a mask body and an ear hanging belt, wherein the mask body and the ear hanging belt are formed by a melt-blown fabric layer which is clamped between the inner non-woven fabric outer layer and the middle non-woven fabric outer layer, an air suction valve mechanism or an air expiration valve mechanism is arranged on the left side of the mask body, and an air expiration valve mechanism or an air suction valve mechanism corresponding to the left side is arranged on the right side of the mask body. This novel virus protection mask expired gas and inhaled gas are accomplished by the expiratory valve mechanism and the inspiratory valve mechanism that are fixed in both sides respectively, have realized breathing out and inspiratory left and right separation, can guarantee that the air drying of the side of admitting air is clean, and the gas that exhales passes through the gas outlet of gauze mask and filters through melting the cloth layer and adsorb, remains the germ on melting the cloth layer, effectively avoids the outer gas of the gauze mask of exhaling to have the germ phenomenon.

Description

Novel virus protective mask

Technical Field

The utility model belongs to the technical field of protective articles, specific saying relates to a novel virus protective facial mask.

Background

The mask is a necessary protective article worn on the mouth and nose for filtering air entering the mouth and nose so as to block harmful gas, smell, spray, virus and other substances. Particularly, the mask worn in public places becomes the behavior criterion for preventing virus infection since the occurrence of epidemic situations.

The existing masks are various in types and can be divided into a common mask and an N95 mask with a breather valve mechanism, wherein the common mask is formed by an inner non-woven fabric outer layer, an outer non-woven fabric outer layer, a melt-blown fabric layer three-layer structure which is sandwiched between the inner non-woven fabric outer layer and the melt-blown fabric layer three-layer structure. Wherein, the outer non-woven fabrics of ordinary gauze mask is coarse filtration layer, interior non-woven fabrics layer for adsorbing the moisture layer, melts the effect of spouting the cloth layer and be for adsorbing and filtering bacterium or dust, nevertheless because the moisture that oral cavity and nasal cavity expired can make melts when spouting the cloth layer humidity and lose the effect of adsorbing bacterium or dust, reduces the filter effect. And the gauze mask that has the breather valve adopts the integrative design of valve block, and the valve block is closed during breathing in, the air is inhaled through the melt-blown cloth layer of the centre of whole wainscot, and the valve block is opened and is gone out including the waste gas row that contains the bacterium with the human body during expiration, and the germ gas that breathes out after wearing this gauze mask person to infect from this can cause the injury to other people.

The invention patent application with Chinese patent application number of 202010499607.4 and application publication number of CN 111657587A discloses a multifunctional mask, the structure of which comprises a mask body made of plastic covered with detachable filter cloth and an elastic band; the mask body is provided with an air inlet channel and a plurality of arrayed bulges for supporting the filter cloth, the back of the mask body is provided with a breathing component made of soft rubber, and the breathing component is provided with a breathing cavity matched with the nose and the mouth; an air inlet hole and an air outlet hole are arranged on the front cavity wall of the breathing cavity, an air inlet one-way valve is arranged on the air inlet hole, and an air outlet one-way valve is arranged on the air outlet hole.

The multi-functional gauze mask of this structure is owing to increased the gauze mask body that can play the plastic material of supporting role, can effectively increase the space between face and gauze mask, nevertheless because respiratory component sets up to the nasal part cooperation breathing cavity and the oral area cooperation breathing cavity of cutting apart, the breathing and the oral cavity breathing of nasal cavity have been separated, nevertheless expiration and the inspiration in the whole gauze mask do not separate, make the moisture problem that forms the melt-blown cloth layer that the gauze mask adsorbs and filtering bacteria or dust do not solve, the moisture that has oral cavity and nasal cavity expired can make melt-blown cloth layer when moist and lose the effect of adsorption bacteria or dust, reduce the filter effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a exhale with inhale the separation, effectively prevent to form the wet and effectively prevent virus bacterium spun novel virus protection gauze mask of melt-blown cloth layer of gauze mask.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a novel virus protection mask, includes inside and outside non-woven fabrics skin and presss from both sides in gauze mask body and the ear-hanging area that melt-blown cloth layer formed between the two, its characterized in that:

the mask body is formed

The left side is provided with an inspiration or expiration valve mechanism, and the right side is provided with an expiration or inspiration valve mechanism corresponding to the left side.

The additional technical characteristics of the novel virus protection mask further comprise that:

the air suction or exhalation valve mechanism is arranged on the inner non-woven fabric outer layer or the outer non-woven fabric outer layer, and the inner non-woven fabric outer layer or the outer non-woven fabric outer layer of the air suction or exhalation valve mechanism and the melt-blown fabric layer are fixed to form a separation structure capable of forming an air flow space 14

The air of the inlet and outlet covers is in a separation structure, and enters the inner side of the inlet cover or the outer side of the exhalation mask after being adsorbed and filtered by the melt-blown cloth layer;

an expiration or/and inspiration gas guide plate is/are arranged between the outer layer of the inner non-woven fabric and the melt-blown fabric layer which form the mask body; the flow guide plate is formed by an inner plate and an outer plate which are arranged in a double-layer mode and have air flowing intervals, the inner plate is provided with air inlet and air outlet flow guide holes, the exhalation valve mechanism is fixed on the air outlet flow guide holes, and the inhalation valve mechanism is fixed on the air inlet flow guide holes; a plurality of air flow holes are formed in the outer layer plate;

the inner plate and the outer plate forming the guide plate are of an integrated structure with the periphery sealed and matched with the concave-convex part of the face;

the guide plate is formed by a left-right separated two-body structure.

Compared with the prior art, the utility model provides a novel virus protective facial mask has following advantage: firstly, because the left side of the mask body is provided with the air suction or expiration valve mechanism, and the right side is provided with the expiration or inspiration valve mechanism corresponding to the left side, when the mask is worn, the air for breathing out the mask and the air for sucking in the mask are respectively completed by the expiration valve mechanism and the inspiration valve mechanism which are fixed on the two sides, so that the left and right separation of the air suction and the air breathing is realized, the air on the air inlet side can be ensured to be dry and clean, the breathed out air passes through the air outlet of the mask and is filtered and adsorbed by the melt-blown cloth layer, the germs are kept on the melt-blown cloth layer, and the phenomenon that the air outside the breathed out mask has germs is effectively avoided; secondly, because the expiration or/and inspiration gas guide plate is arranged between the inner non-woven fabric outer layer and the melt-blown fabric layer which form the mask structure, the guide plate can play a role in supporting the mask structure, the space between the inner non-woven fabric outer layer of the mask and the face to be buckled is effectively increased, and the comfort is increased; thirdly, because the outer layer plate forming the guide plate is provided with a plurality of airflow holes, the effective area of the airflow entering the melt-blown cloth layer adhered to the outer side of the guide plate for filtering germs can be increased, and the effect of the mask is improved.

Drawings

FIG. 1 is a schematic structural view of a novel virus protective mask of the present invention;

FIG. 2 is a schematic sectional view of A-A constituting FIG. 1;

FIG. 3 is a cross-sectional view of an alternative configuration of the respirator of FIG. 1;

FIG. 4 is another schematic structural diagram of the novel virus protective mask;

FIG. 5 is a schematic sectional view of B-B constituting FIG. 4;

FIG. 6 is a schematic view of the inspiratory and expiratory gas baffle as a unitary structure;

fig. 7 is a schematic view of the inhalation and exhalation flow guide plates forming a split structure.

Detailed description of the preferred embodiments

The structure of the novel virus protective mask provided by the present invention will be further described in detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the structure of the novel virus protective mask provided by the present invention is schematically illustrated. The structure of the protective mask comprises an inner non-woven fabric outer layer 11, an outer non-woven fabric outer layer 12, a mask body 1 and a suspension loop belt 2, wherein the mask body 1 and the suspension loop belt 2 are formed by sandwiching and melting a cloth layer 13 in the middle, and an air suction valve mechanism 31 is arranged on the outer non-woven fabric outer layer 12 on the left side of the mask body; the outer non-woven fabric layer 12 on the right side is provided with an exhalation valve mechanism 32 corresponding to the left side, and a separation structure capable of forming an air airflow space 14 is formed between the outer non-woven fabric layer 12 and the melt-blown fabric layer 13 for fixing the inhalation or

exhalation valve mechanisms

31 and 32.

After the mask is worn, negative pressure is formed in the mask cavity during air suction, air can enter the air flow space 14 through the air suction valve mechanism 31 arranged on the outer non-woven fabric outer layer 12 on the left side of the mask body, germs are filtered, adsorbed and retained by the over-melted spraying fabric layer forming the mask body, and filtered nontoxic sterile air is sucked into the nasal cavity or the oral cavity from the inner non-woven fabric outer layer 11 to the inner side of the mask; when breathing, positive pressure is formed in the mask cavity, air exhaled from the nasal cavity or the oral cavity passes through the melt-blown cloth layer 13 forming the mask body after passing through the inner non-woven fabric outer layer 11, pathogenic bacteria are filtered, adsorbed and retained on the melt-blown cloth layer, and then the air is exhaled out of the mask through the exhalation valve mechanism 32 arranged on the outer non-woven fabric outer layer 12 on the right side of the mask body; realized exhaling and inspiratory left and right separation, can guarantee that the air of the side of admitting air is dry clean, the gas that exhales filters through the melt-blown cloth layer of gauze mask and adsorbs, remains the germ on melt-blown cloth layer, effectively avoids the gas outside the gauze mask of exhaling to have the germ phenomenon.

Of course, the structure of the protective mask may be such that, as shown in fig. 3, an inhalation valve mechanism 31 is provided on the inner non-woven fabric outer layer 11 constituting the left side of the mask body; the inner non-woven fabric outer layer 11 on the right side is provided with an exhalation valve mechanism 32 corresponding to the left side, and a separation structure capable of forming an air flow space 14 is formed between the inner non-woven fabric outer layer 11 and the melt-blown fabric layer 13 for fixing the inhalation or

exhalation valve mechanisms

31 and 32. The left and right separation of expiration and inspiration can be realized, the air on the air inlet side is ensured to be dry and clean, and the expired air passes through the air outlet of the mask and is filtered and adsorbed by the melt-blown cloth layer.

In the structure of the novel virus protection mask, the structure comprises the following components:

in order to further improve the comfort of the mask worn and further increase the filtering and adsorbing area of the melt-blown fabric layer, the germs in the air or the germs in the airflow exhaled by the oral cavity and the nasal cavity are uniformly and maximally filtered and retained on the melt-blown fabric layer, as shown in fig. 4 and 5, an air suction guide plate 41 and an air exhalation guide plate 42 are respectively arranged between the inner non-woven fabric outer layer 11 and the melt-blown fabric layer 13 which form the left side and the right side of the mask body; the inhalation flow guide plate and the exhalation flow guide plate are each composed of an

inner plate

411, 421, an

outer plate

412, 422, and an

air flow space

413, 423 formed therebetween, and the inner plate and the outer plate are preferably composed of a lightweight plastic material. Wherein, there is an air intake guiding hole 414 on the inner plate 411 forming the air intake guiding plate 41, there is an air intake valve mechanism 43 that the valve plate opens when inhaling and closes when exhaling that is formed by axis fixed valve plate 415, valve plate baffle 416 fixed inside the guiding hole, there is an air outlet guiding hole 424 on the inner plate 421 forming the exhaling guiding plate 42, there is an exhaling valve mechanism 44 that is formed by axis fixed valve plate 425, valve plate baffle 426 fixed inside the guiding hole; the

outer plates

412 and 422 of the inhalation flow guide plate 41 and the exhalation flow guide plate 42 are preferably uniformly distributed with a plurality of

air flow holes

417 and 427.

When the mask is used, the air guide plate 41 and the air guide plate 42 have a supporting function, so that the problem that the inner non-woven fabric outer layer 11 attached to the inner side of the mask is directly attached to the face can be effectively solved, and the comfort level of wearing the mask is improved. When the respirator is worn to inhale, the respirator exhalation valve mechanism is in a closed state, air enters the air flow interval 413 of the inhalation guide plate 41 from the non-woven fabric outer layer 12 on the left side of the respirator, is filtered by the melt-blown cloth layer 13 and then enters the air flow interval 417 of the inhalation guide plate 41 from the air flow hole 417, and the filtered air enters the inner side of the respirator from the inhalation valve mechanism and the (preferably designed to be airtight) inner non-woven fabric outer layer 11 and is inhaled into a nasal cavity; when exhaling, the inhalation valve mechanism on the left side of the mask is in a closed state, the air exhaled from the nasal cavity and the oral cavity passes through the inner non-woven fabric outer layer 11, enters the air flowing interval 423 of the exhalation guide plate 42 on the right side of the mask through the exhalation valve mechanism, passes through the airflow holes 427 of the outer plate of the inhalation guide plate 41, is filtered by the melt-blown fabric layer 13, and then is exhaled out of the mask through the outer non-woven fabric outer layer 12 (the inner non-woven fabric outer layer 11 which is attached to the inner plate 421 of the exhalation guide plate 42 is preferably of an airtight design). Because the exhaled air flow only passes through the right side of the mask, the dryness of the left side of the mask can be effectively ensured, and meanwhile, the exhaled air flow is filtered by the melt-blown cloth layer 13 to form sterile (bacteria-free) air flow entering a public space;

the structure of the expiratory and inspiratory

flow guide plates

41 and 42 may be an integral structure conforming to the shape of the whole face as shown in fig. 6, that is, the

inner plates

411 and 421 provided with the inspiratory valve mechanism 43 and the expiratory valve mechanism 44 are formed as an integral structure, the

outer plates

412 and 422 provided with the

airflow holes

417 and 427 and forming the inspiratory flow guide plates 41 and the expiratory flow guide plates 42 are formed as an integral structure, and it is preferable that the peripheral rings 45 of the inner plates and the outer plates are formed as a sealed integral structure, and the outer plates of the expiratory and inspiratory flow guide plates forming the integral structure are integrally attached by the melt-blown cloth layer 13, so that the melt-blown cloth layer 13 can effectively filter and adsorb the inspiratory and expiratory airflow germs; of course, the integral expiration and

inspiration deflector

41, 42 may also be a structure in which the supporting

mechanisms

418, 428 are disposed between the inner plate and the outer plate to form an air flow space, and the outer nonwoven fabric layer 12 wrapped around the expiration and

inspiration deflector

41, 42 may also play a role in sealing to prevent the gas inhaled or exhaled and filtered by the meltblown fabric layer 13 from escaping. In short, the exhalation and

inhalation guide plates

41 and 42 which are of an integral structure and consistent with the shape of the whole face as shown in fig. 6 are formed, the preparation process is simple, and the formed mask is of an unfolded structure;

the exhalation and inhalation

flow guide plates

41 and 42 may be formed in a left-right separated two-body structure as shown in fig. 7, and the exhalation flow guide plate 42 and the inhalation flow guide plate 41 are formed respectively. And is constructed in a structure in which

air flow spaces

413 and 423 are formed between the inner and outer plates, respectively. The mask formed by the expiration and inspiration gas guide plates of the structure can be folded, and has the characteristics of convenient packaging and use.

Claims

1. The utility model provides a novel virus protection gauze mask, includes inside and outside non-woven fabrics skin and presss from both sides and the gauze mask body and the ear-hanging area that melt-blown cloth layer formed with the centre, its characterized in that:

the mask body is formed

The left side is provided with an inspiration or expiration valve mechanism, and the right side is provided with an expiration or inspiration valve mechanism corresponding to the left side;

wherein, inhale or expiratory valve mechanism set up in interior non-woven fabrics skin or outer non-woven fabrics skin on, and fixed inhale or expiratory valve mechanism's interior non-woven fabrics skin or outer non-woven fabrics skin and the melt-blown fabric layer between be the separation structure that can form the air current space, its air that passes in and out gauze mask passes through melt-blown cloth layer adsorb, filter behind the virus bacterium enter into the gauze mask inboard or exhale the gauze mask outside.

2. The novel virus protective mask according to claim 1, wherein: an expiration or/and inspiration gas guide plate is arranged between the outer layer of the inner non-woven fabric and the melt-blown fabric layer which form the mask body; the flow guide plate is a double-layer arrangement of an inner plate and an outer plate with air flowing intervals, the inner plate is provided with air inlet and air outlet flow guide holes, the exhalation valve mechanism is fixed on the air outlet flow guide holes, and the inhalation valve mechanism is fixed on the air inlet flow guide holes; the outer plate is provided with a plurality of airflow holes.

3. The novel virus protective mask according to claim 2, wherein: the inner plate and the outer plate which form the guide plate are of an integrated structure with the periphery sealed and the face concave-convex matched.

4. The novel virus protective mask according to claim 2, wherein: the guide plate is formed by a left-right separated two-body structure.