CN111358084A

CN111358084A - Mask

Info

Publication number: CN111358084A
Application number: CN202010360903.6A
Authority: CN
Inventors: 张进利
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-07-03

Abstract

The utility model provides a mask, including the cover body and the frenulum that is used for fixing the cover body at the mouth nasal part, cover body inboard is provided with the separator, separator front side edge and cover body inboard fixed connection, separator rear side is used for with human lip top, the regional inseparable laminating in nose below, cover body inboard, separator top, the nose forms the inspiration chamber, cover body inboard, separator below forms the expiration chamber with the oral part, breathe in at the inspiration chamber through the nasal cavity during inspiration, exhale through the oral cavity during expiration, gas is outside the cover body through expiration chamber discharge, so can guarantee that the air in the inspiration chamber is clean dry air all the time, can solve the problem that frequent waste gas of inhaling leads to the oxygen deficiency, the expired waste gas is discharged through the expiration chamber of below, the regional gas permeability of cover body of inspiration chamber can not cause the regional cover body gas permeability of inspiration chamber to reduce with the problem that the adsorptivity worsen, exhaled water vapor does not fog the lenses of goggles or glasses.

Description

Mask

Technical Field

The invention relates to the technical field of medical protective instruments, in particular to a mask.

Background

The mask is a sanitary article, is generally worn at the mouth and nose part for filtering air entering the mouth and nose so as to achieve the purpose of preventing harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer, is made of gauze or paper and the like, has a certain filtering effect on air entering the lung, and has a very good effect when the mask is worn in operation in an environment polluted by dust and the like when respiratory infectious diseases are prevalent.

The existing mask comprises a mask body and a lacing for fixing the mask body on the mouth and nose parts of a human body, the mask body is made of breathable materials, after the mask is worn, an independent space is formed between the mask body and the mouth and nose parts, the independent space and external air are subjected to gas exchange through the mask body, although a certain effect of separating harmful gas, smell and spray can be realized, the existing mask still has the following problems that firstly, after the mask is exhaled every time, a part of exhaled waste gas is remained in the independent space, when next inhalation is carried out, clean air filtered by the mask body outside after the remained waste gas is inhaled by the human body, when the inhaled gas is compared with the mask which is not worn, the oxygen intake is reduced, the insufficient oxygen inhalation of the human body can be caused after long-time wearing, a series of reactions of oxygen deficiency of the human body can be generated, and secondly, a large amount of water vapor is contained in the waste gas exhaled through the, and gauze mask melt layer meet water vapour static can disappear, carry out the in-process of gas exchange with the external world, water vapour is absorbed by the cover body and makes melt layer lose the electrostatic adsorption function, can reduce the adsorptivity and the gas permeability of the cover body, make the filter capacity of the cover body descend, also make the gas permeability descend simultaneously, make oxygen uptake further reduce, accelerate the emergence of oxygen deficiency reaction, thirdly, the water vapour of exhalation can discharge through the gap between cover body upper edge and the human body, lead to medical staff's goggles or the personnel's of wearing glasses lens to fog, block the sight.

Therefore, how to solve the problems that oxygen deficiency is caused by repeated inhalation of exhaled waste gas caused by wearing the mask, the breathability and adsorbability of the mask body are reduced by exhaled water vapor, and the lens is fogged by the exhaled water vapor to block the sight in the prior art becomes a technical problem which needs to be solved urgently by the technical personnel in the field.

Disclosure of Invention

The invention aims to provide a mask, which solves the problems that in the prior art, oxygen deficiency is caused by repeated inhalation of exhaled waste gas due to wearing of the mask, a meltblown layer loses an electrostatic adsorption function due to exhaled water vapor, the air permeability of the mask is reduced due to the water vapor, and a lens is fogged due to the exhaled water vapor to block the sight.

The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a mask, which comprises a mask body and a tying belt used for fixing the mask body on a mouth-nose part, wherein a separating body is arranged on the inner side of the mask body, the separating body extends from the left side edge to the right side edge of the mask body, the front side of the separating body is fixedly connected with the inner side of the mask body, the rear side of the separating body is used for being tightly attached to the area above the lips and below the nose of a human body, an air suction chamber is formed on the inner side of the mask body and above the separating body, and an air breathing chamber is formed on the inner side of the mask.

Preferably, an elastic member is provided at a side of the division body contacting the human body, the elastic member extending from a left side edge to a right side edge of the division body.

Preferably, the elastic member is a medical rubber band.

Preferably, the separator comprises three layers, the upper and lower layers being a first spunbond nonwoven layer and the middle layer being a waterproof layer.

Preferably, the waterproof layer is made of polypropylene.

Preferably, the cover body comprises a second spunbonded nonwoven layer on the outer side and the inner side and at least one meltblown nonwoven layer positioned between the two spunbonded nonwoven layers.

Preferably, the meltblown nonwoven is provided in one, two or three layers.

Preferably, a plastic nose bridge strip is arranged at the position where the top of the mask body is contacted with the nose bridge.

Preferably, the nose bridge strip is an all-plastic strip or a metal strip.

Preferably, the strap is of the ear-hook or loop type.

The mask provided by the invention has the beneficial effects that:

the invention provides a mask, which comprises a mask body and a lacing used for fixing the mask body on a mouth and nose part, and is characterized in that a separating body is arranged on the inner side of the mask body, the separating body extends from the left side edge to the right side edge of the mask body, the front side edge of the separating body is fixedly connected with the inner side of the mask body, the rear side of the separating body is used for being tightly attached to the upper part of lips and the lower part of nose of a human body, after the mask is worn, an inhalation chamber used for inhaling air by the nose is formed on the inner side of the mask body, the upper part of the separating body and the nose part, and an exhalation chamber used for exhaling air is formed on the inner side of the mask body, the lower part of the separating body and the mouth part, the inhalation and exhalation of the existing mask adopt the same air chamber, the mask adopts an exhalation and inhalation chamber division structure, so can guarantee that the air in the inspiration chamber is clean air all the time, inspiratory gas is clean air at every turn, can solve frequently to inhale waste gas and lead to the problem of oxygen deficiency, the exhaling chamber of expired waste gas through the below is discharged, do not influence the gas permeability and the adsorptivity of the regional cover body of inspiration chamber, can not cause the regional cover body gas permeability of inspiration chamber to reduce and the problem of adsorptivity variation, exhaling the chamber and being located the below in addition, the steam of exhalation can not influence the use of goggles or glasses, can not produce the problem that the lens hazed.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a mask worn in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of a folded mask according to an embodiment of the present invention;

FIG. 3 is a view from direction B of FIG. 1 illustrating an embodiment of the present invention;

FIG. 4 is a diagram of a separator construction according to an embodiment of the invention;

FIG. 5 is a view of FIG. 1 taken in the direction A, as shown in an embodiment of the present invention;

FIG. 6 is a view of FIG. 1 taken in the direction C, as shown in an embodiment of the present invention;

FIG. 7 is a D-view of FIG. 1 illustrating an embodiment of the present invention;

FIG. 8 is a cross-sectional view of a separator shown in an embodiment of the invention;

FIG. 9 is a cross-sectional view of an SMS-type enclosure shown in an embodiment of the present invention;

fig. 10 is a cross-sectional view of an SMMMS-type housing, illustrating an embodiment of the present invention.

In the figure: 1. a cover body; 2. a tie strap; 3. a separator; 4. an air suction chamber; 5. an expiration chamber 6, an elastic member; 7. a first spunbond nonwoven layer; 8. a waterproof layer; 9. a second spunbond nonwoven layer; 10. melt-blown non-woven fabric layer; 11. a nose bridge strip.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the contents of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.

The mask provided by the application is mainly suitable for protecting medical staff and related workers against respiratory infectious diseases transmitted through air, basic protection of the medical staff and the related workers and protection against blood, body fluid and splash transmission in an invasive operation process, disposable health care under a common environment or blocking and protection against particles (such as pollen and the like) except pathogenic microorganisms, and aims to overcome the defects of the conventional mask, solve the problem of oxygen deficiency caused by repeated inhalation of waste gas such as carbon dioxide and the like due to the same-room breathing while achieving the effect of blocking harmful substances such as viruses, bacteria, liquid, particles and the like, solve the problem of breathing difficulty caused by the fact that water vapor causes mask dampness and air permeability is reduced due to the same-room breathing, and solve the problem of fogging of goggles caused by the water vapor caused by the same-room breathing, solves the problem that the function of electrostatic adsorption of virus droplets is reduced when the melt-spraying layer of the traditional mask loses static electricity when meeting water vapor.

The invention provides a mask, which comprises a mask body 1 and a lacing 2 for fixing the mask body 1 on a mouth-nose part, and is characterized in that a separating body 3 is arranged on the inner side of the mask body 1, the separating body 3 extends from the left side edge to the right side edge of the mask body 1, the front side edge of the separating body 3 is fixedly connected with the inner side of the mask body 1, the rear side of the separating body 3 is tightly attached to the upper part of a lip and the lower part of a nose of a human body, after the mask is worn, an inhalation chamber 4 for inhaling the nose is formed on the inner side of the mask body 1, the upper part of the separating body 3 and the nose part, an exhalation chamber 5 for exhaling is formed on the inner side of the mask body 1, the lower part of the separating body 3 and the mouth part, the existing mask adopts the same air chamber for inhaling and exhaling, the mask adopts an exhalation and inhalation chamber, gas is outside the housing 1 of exhaling chamber 5 exhaust, so can guarantee that the air in the chamber 4 of breathing in is clean air all the time, inspiratory gas is clean air at every turn, can solve the problem that frequently inhales waste gas and lead to the oxygen deficiency, exhale the exhaust of exhaust gas through exhaling chamber 5 below, do not influence the gas permeability and the adsorptivity of the housing 1 of the 4 regional housings of chamber 4 of breathing in, can not cause the problem that the regional housing 1 gas permeability of chamber 4 of breathing in reduces and adsorptivity variation, and exhale chamber 5 and be located the below, the use of goggles or glasses can not be influenced to the aqueous vapor of exhalation, can not produce the problem that the lens hazed.

In order to make this gauze mask can adapt to the people of the different width of face and wear, can set up elastic component 6 in one side of partition body 3 and human contact, elastic component 6 can be elongated along left right direction, after the people wore good gauze mask, elastic component 6 closely laminates with the human body, makes inhalation chamber 4 and exhale chamber 5 form two confined independent air chambers, prevents that the edge of partition body 3 rear side from producing the gap with human contact department, makes the gas of exhaling in the exhalation chamber 5 follow the gap and get into in inhalation chamber 4.

In the implementation, foretell elastic component 6 can be medical rubber band, and the original length of this rubber band is less than cover body 1 and opens the distance between the back left and right sides edge completely, so can guarantee that this rubber band is in the state of being elongated when the gauze mask opens completely and wears in the oronasal part, makes this rubber band closely laminate with the human body, prevents to produce the gap between 3 edges of separator and the human body.

Preferably, the separator 3 may have three layers, the upper layer and the lower layer are the first spunbonded nonwoven fabric layer 7, that is, the two layers located in the breathing chamber 5 and the breathing chamber 4 are the first spunbonded nonwoven fabric layer 7, the middle layer is the waterproof layer 8, and the waterproof layer 8 can prevent the water vapor in the breathing chamber 5 from entering the breathing chamber 4.

In an embodiment, the waterproof layer 8 may be made of polypropylene.

The cover body 1 may include a plurality of layers, the inner side and the outer side are provided with a second spunbonded nonwoven fabric layer 9, at least one meltblown nonwoven fabric layer 10 may be disposed between two second spunbonded nonwoven fabric layers 9, the second spunbonded nonwoven fabric layer 9 located at the outer side may play a role of preventing droplets, the second spunbonded nonwoven fabric layer 9 located at the inner layer may play a role of absorbing moisture, the meltblown nonwoven fabric layer 10 located in the middle is mainly made of polypropylene, and is a superfine electrostatic fiber fabric, which may capture dust, for example, droplets containing pneumovirus may be electrostatically adsorbed on the surface of the nonwoven fabric after approaching the spunbonded nonwoven fabric layers, and may not permeate through.

In the implementation, the melt-blown non-woven fabric layer 10 can be provided with one layer, two layers or three layers, the melt-blown non-woven fabric layer 10 is the core of the mask, and plays a role in blocking and adsorbing harmful substances, the more the number of the layers of the melt-blown non-woven fabric layer 10 is, the better the filtering effect is, but with the increase of the number of the layers of the melt-blown non-woven fabric layer 10, the air permeability of the mask can also be reduced, so that the existing medical mask is mostly a melt-blown non-woven fabric layer 10, namely, an SMS structure (S represents a spunbond non-woven fabric layer, M represents the melt-blown non-woven fabric layer 10), the existing medical protective mask and the N95 mask are mostly five-layer structures, namely.

The position of foretell cover body 1 top and the contact of bridge of the nose is provided with nose bridge strip 11, and nose bridge strip 11 sets up the middle part on cover body 1 top along left right direction, after wearing good gauze mask, holds between the fingers into the shape of bridge of the nose with nose bridge strip 11, makes the top edge of the cover body 1 closely laminate with the bridge of the nose, prevents that the air from passing in and out room 4 of breathing in by the gap between cover body 1 top and the bridge of the nose.

The nose bridge strip 11 may be a full plastic strip or a metal strip.

The fastening band 2 may be an ear-hanging type fastening band 2 provided on both left and right sides of the cover body 1, or a pullover type fastening band 2 provided on both upper and lower ends of the cover body 1.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The mask comprises a mask body (1) and a frenum (2) used for fixing the mask body (1) on a mouth-nose part, and is characterized in that a separating body (3) is arranged on the inner side of the mask body (1), the separating body (3) extends from the left side edge to the right side edge of the mask body (1), the front side of the separating body (3) is fixedly connected with the inner side of the mask body (1), the rear side of the separating body (3) is tightly attached to the area above the lips and below the nose of a human body, an air suction chamber (4) is formed on the inner side of the mask body (1) and above the separating body (3), and an air breathing chamber (5) is formed on the inner side of the mask body (1) and below the separating body.

2. Mask according to claim 1, characterized in that the side of the partition (3) which is in contact with the human body is provided with an elastic member (6), the elastic member (6) extending from the left edge to the right edge of the partition (3).

3. Mask according to claim 2, characterized in that said elastic means (6) are medical elastic bands.

4. Mask according to claim 1, characterized in that said separator (3) comprises three layers, the upper and lower layers being a first spunbonded non-woven layer (7) and the middle layer being a waterproof layer (8).

5. Mask according to claim 4, characterized in that the waterproof layer (8) is made of polypropylene.

6. Mask according to claim 1, characterized in that said mask body (1) comprises a second spunbonded nonwoven layer (9) on the outside and on the inside and at least one meltblown nonwoven layer (10) located between two of said second spunbonded nonwoven layers (9).

7. Mask according to claim 6, characterized in that said meltblown layer (10) is provided with one, two or three layers.

8. Mask according to claim 1, characterized in that the top of the mask (1) is provided with a plastic nose bridge strip (11) at the point where it meets the bridge of the nose.

9. Mask according to claim 8, characterized in that said nose bridge strip (11) is an all-plastic or metal strip.

10. Mask according to claim 1, characterized in that said tie (2) is of the ear-hook type or of the pullover type.