CN111358084A - Mask - Google Patents

Abstract

A mask provided by the present application includes a cover body and a tie for fixing the cover body on the mouth and nose. A partition body is arranged inside the cover body, the front edge of the partition body is fixedly connected with the inner side of the cover body, and the rear side of the partition body is fixedly connected. It is used to closely fit the area above the human lips and under the nose. The inner side of the mask body, above the partition body, and the nose form an inhalation chamber, and the inner side of the mask body, below the partition body and the mouth form an exhalation chamber. The inhalation chamber inhales, exhales through the mouth when exhaling, and the gas is discharged out of the cover through the exhalation chamber, so that the air in the inhalation chamber is always clean and dry, and the problem of hypoxia caused by frequent inhalation of exhaust gas can be solved. The exhaust gas is discharged through the exhalation chamber below, which does not affect the air permeability of the cover in the inhalation chamber area. It will not cause the problem of reduced air permeability and poor adsorption of the cover in the inhalation chamber area. The exhalation chamber is located below, and the exhaled water Vapor does not fog the lenses of goggles or glasses.

Description

a mask

technical field

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

Background technique

A mask is a sanitary product, generally refers to a device worn on the mouth and nose to filter the air entering the mouth and nose to prevent harmful gases, odors, and droplets from entering and leaving the wearer's mouth and nose. It is made of gauze or paper. Masks have a certain filtering effect on the air entering the lungs. Wearing masks has a very good effect when working in a polluted environment such as dust when respiratory infectious diseases are prevalent.

Existing masks include a mask body and a tie that fixes the mask body on the mouth and nose of the human body. The mask body is made of breathable materials. After wearing the mask, an independent space is formed between the mask body and the nose and mouth, and the independent space is connected to the outside air. The gas exchange through the mask body can achieve a certain effect of blocking harmful gases, odors and droplets, but the existing masks still have the following problems. First, after each exhalation, part of the exhaled exhaust gas will remain in the mask. In the independent space, when inhaling the next time, the remaining exhaust gas needs to be inhaled into the human body before the clean air filtered by the cover can be inhaled by the human body. Reduced, after wearing for a long time, it will cause insufficient oxygen absorption by the human body, causing the human body to produce a series of reactions of hypoxia. Second, the exhaust gas exhaled through the mouth contains a large amount of water vapor, and the meltblown layer of the mask will disappear when it encounters water vapor static electricity. In the process of gas exchange with the outside world, the water vapor is absorbed by the cover body, so that the meltblown layer loses its electrostatic adsorption function, which will reduce the adsorption and air permeability of the cover body, reduce the filtering ability of the cover body, and also reduce the air permeability. The oxygen uptake is further reduced, and the occurrence of hypoxia reaction is accelerated. Third, the exhaled water vapor may be discharged through the gap between the upper edge of the cover and the human body, causing the goggles of medical staff or the lenses of people wearing glasses to break. Fog, blocking vision.

Therefore, how to solve the problems in the prior art that the repeated inhalation of exhaled exhaust gas caused by wearing a mask causes hypoxia, the exhaled water vapor reduces the air permeability and adsorption of the mask body, and the exhaled water vapor causes the lens to fog and block the sight. Technical problems that technicians urgently need to solve.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a kind of mouth mask, to solve the problem of hypoxia caused by repeated inhalation of exhaled exhaust gas caused by wearing a mouth mask in the prior art, the exhaled water vapor makes the meltblown layer lose the electrostatic adsorption function, and the water vapor makes the air permeability of the mouth mask. The problem of lowering and exhaled water vapor fogging the lens blocking vision.

The technical effects that can be produced by the preferred technical solutions among the technical solutions provided by the present invention are detailed in the following descriptions.

For achieving the above object, the invention provides the following technical solutions:

A mask provided by the present invention includes a cover body and a tie for fixing the cover body on the mouth and nose, a partition body is arranged inside the cover body, and the partition body is formed by the left side of the cover body. The side edge extends to the right edge, the front side of the partition body is fixedly connected with the inner side of the cover body, the rear side of the partition body is used to closely fit the area above the human lips and under the nose, and the inner side of the cover body, all the An inhalation chamber is formed above the partition body, and an exhalation chamber is formed inside the cover body and below the partition body.

Preferably, an elastic piece is provided on the side of the partition body in contact with the human body, and the elastic piece extends from the left edge of the partition body to the right edge.

Preferably, the elastic member is a medical rubber band.

Preferably, the separator comprises three layers, the upper and lower layers are the first spunbond non-woven fabric layer, and the middle is the waterproof layer.

Preferably, the material of the waterproof layer is polypropylene.

Preferably, the cover body includes a second spunbond non-woven fabric layer on the outer side and the inner side and at least one melt-blown non-woven fabric layer located between the two layers of the spunbond non-woven fabric layer.

Preferably, the meltblown non-woven fabric is provided with one layer, two layers or three layers.

Preferably, a plastic nose bridge strip is provided at the position where the top of the cover body contacts the bridge of the nose.

Preferably, the nose bridge strip is a full plastic strip or a metal strip.

Preferably, the tie is of an ear-hook type or a pull-over type.

A kind of mouth mask provided by the invention, its beneficial effect is:

A mask provided by the present invention includes a mask body and a tie for fixing the mask body on the mouth and nose. The innovation of the application is that a partition body is arranged inside the mask body, and the partition body is separated from the left side of the mask body. The edge extends to the right edge, the front edge of the divider is fixedly connected to the inside of the cover, and the back of the divider is used to closely fit the area above the human lips and under the nose. After wearing the mask, the inside of the cover, above the divider, The nose forms an inhalation chamber for inhalation through the nose, and an exhalation chamber for exhalation is formed on the inside of the cover body, below the partition body and the mouth. The existing mask uses the same air chamber for inhalation and exhalation. The mask provided by the application The structure of exhalation and inhalation is divided into different chambers. When inhaling, the air is inhaled through the nasal cavity. The external air is filtered by the cover body in the inhalation chamber area and then enters the inhalation chamber. In this way, it can ensure that the air in the inhalation room is always clean air, and the gas inhaled every time is clean air, which can solve the problem of oxygen deficiency caused by frequent inhalation of exhaust gas. Exhaled exhaust gas is discharged through the exhalation chamber below without affecting inhalation The air permeability and adsorption of the cover in the room area will not cause the problem of reduced air permeability and poor adsorption of the cover in the inhalation room area, and the exhalation room is located below, and the exhaled water vapor will not affect the goggles or glasses. The use of the lens will not cause the problem of lens fogging.

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

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

Fig. 1 is the mask wearing schematic diagram shown in the embodiment of the present invention;

Fig. 2 is the folding schematic diagram of the mask shown in the embodiment of the present invention;

Fig. 3 is the B-direction view of Fig. 1 shown in the embodiment of the present invention;

4 is a structural diagram of a separator shown in an embodiment of the present invention;

Fig. 5 is the A-direction view of Fig. 1 shown in the embodiment of the present invention;

Fig. 6 is the C-direction view of Fig. 1 shown in the embodiment of the present invention;

Fig. 7 is the D-direction view of Fig. 1 shown in the embodiment of the present invention;

8 is a sectional view of a separator shown in an embodiment of the present invention;

9 is a cross-sectional view of an SMS-type cover body shown in an embodiment of the present invention;

FIG. 10 is a sectional view of an SMMMS type cover shown in an embodiment of the present invention.

In the figure: 1, cover body; 2, lace; 3, separator; 4, inhalation chamber; 5, exhalation chamber, 6, elastic part; 7, first spunbond non-woven fabric layer; 8, waterproof layer 9. The second spunbond non-woven layer; 10. The melt-blown non-woven layer; 11. The bridge of the nose.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Hereinafter, the embodiment will be described with reference to the drawings. In addition, the embodiments shown below do not have any limiting effect on the content of the invention described in the claims. In addition, the whole content of the structure shown in the following embodiment is not limited to what is necessary for the solution of the invention described in the claim.

The masks provided in this application are mainly suitable for the protection of medical staff and related staff against airborne respiratory infectious diseases, the basic protection of medical staff and related staff, and the prevention of blood, body fluids and splashes during invasive operations. Protection, the barrier and protection of particles (such as pollen, etc.) other than one-time sanitary care or pathogenic microorganisms in ordinary environments, the purpose of this application is to improve the deficiencies of conventional masks, and achieve blocking viruses, bacteria, liquids in masks. At the same time, it solves the problem of hypoxia caused by repeated inhalation of carbon dioxide and other exhaust gases caused by breathing in the same room, solves the problem of breathing difficulties caused by moisture and reduced air permeability caused by water vapor caused by breathing in the same room, and solves the problem of breathing in the same room. The resulting water vapor causes the goggles to fog up, and solves the problem that the traditional mask meltblown layer loses static electricity when it encounters water vapor, which leads to the decline in the function of electrostatic adsorption of virus droplets.

A mask provided by the present invention includes a cover body 1 and a strap 2 for fixing the cover body 1 on the mouth and nose. The innovation of the present application is that a separator 3 is arranged inside the mask body 1, and the separator 3 Extending from the left edge of the cover body 1 to the right edge, the front side edge of the partition body 3 is fixedly connected to the inside of the cover body 1, and the rear side of the partition body 3 is used to closely fit the area above the human lips and under the nose, and the mask is worn. Afterwards, the inner side of the cover body 1, the upper part of the partition body 3, and the nose part form an inhalation chamber 4 for inhalation through the nose; A mask adopts the same air chamber for inhalation and exhalation. The mask provided by the application adopts the structure of exhalation and inhalation. When inhaling, inhale through the nasal cavity, and the external air enters the inhalation chamber 4 after being filtered by the cover body 1. When exhaling Through oral exhalation, the gas is discharged out of the cover body 1 through the exhalation chamber 5, which can ensure that the air in the inhalation chamber 4 is always clean air, and the gas inhaled each time is clean air, which can solve the problem of oxygen deficiency caused by frequent inhalation of exhaust gas. The exhaled exhaust gas is discharged through the exhalation chamber 5 below, which does not affect the air permeability and adsorption of the cover body 1 in the area of the inhalation chamber 4, and will not cause the air permeability and adsorption of the cover body 1 in the area of the inhalation chamber 4 to decrease. The problem of deterioration, and the exhalation chamber 5 is located below, the exhaled water vapor will not affect the use of goggles or glasses, and will not cause the problem of lens fogging.

In order to make the mask fit for people with different face widths, an elastic member 6 can be provided on the side of the separator 3 in contact with the human body, and the elastic member 6 can be elongated along the left and right directions. 6. It is closely attached to the human body, so that the inhalation chamber 4 and the exhalation chamber 5 form two closed independent air chambers, so as to prevent the gap between the rear edge of the separator 3 and the human body from being in contact, so that the exhaled gas in the exhalation chamber 5 flows along the air. The gap enters the suction chamber 4 .

In implementation, the above-mentioned elastic member 6 can be a medical rubber band, and the original length of the rubber band is smaller than the distance between the left and right edges after the cover body 1 is fully unfolded, so that it can be ensured that the rubber band is in a position when the mask is fully unfolded and worn on the nose and mouth. In the elongated state, the rubber band can be closely attached to the human body, preventing a gap between the edge of the separator 3 and the human body.

Preferably, the above-mentioned separator 3 can be three layers, and the upper and lower two layers are the first spunbond nonwoven layer 7, that is, the two layers located in the exhalation chamber 5 and the inhalation chamber 4 are the first spunbond nonwoven layer. The cloth layer 7 and the middle layer are the waterproof layer 8 , and the waterproof layer 8 can prevent the water vapor in the exhalation chamber 5 from entering the inhalation chamber 4 .

In implementation, the material of the above-mentioned waterproof layer 8 may be polypropylene.

The above-mentioned cover body 1 may include multiple layers, the inner side and the outer side are the second spunbond non-woven fabric layer 9, and at least one layer of melt-blown non-woven fabric layer 10 may be provided between the two second spunbond non-woven fabric layers 9, The second spunbond non-woven fabric layer 9 located on the outside can play the role of preventing droplets, the second spunbond non-woven fabric layer 9 located in the inner layer can play the role of moisture absorption, and the melt-blown non-woven fabric layer located in the middle 10. The main material is polypropylene, which is an ultra-fine electrostatic fiber cloth that can capture dust. For example, after the droplets containing pneumonia virus approach the spunbond non-woven fabric layer, they will be electrostatically adsorbed on the surface of the non-woven fabric and cannot be penetrated.

In 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 the role of blocking and adsorbing harmful substances. The more layers, the better the filtering effect, but with the increase of 10 layers of melt-blown non-woven fabrics, the air permeability of the mask will also decrease, so the existing medical masks are mostly one layer of melt-blown non-woven fabric layer 10 , namely SMS structure (S stands for spunbond non-woven fabric layer, M stands for melt-blown non-woven fabric layer 10), the existing medical protective masks and N95 masks are mostly five-layer structures, that is, three layers of melt-blown non-woven fabrics are arranged in the middle Layer 10 is the SMMMS structure, so the filtration rate of the N95 mask can reach more than 95%.

The position where the top of the above-mentioned cover body 1 contacts the bridge of the nose is provided with a nose bridge strip 11, and the nose bridge strip 11 is arranged in the middle of the top of the cover body 1 along the left and right directions. The upper edge of the body 1 is in close contact with the bridge of the nose, preventing air from entering and leaving the inhalation chamber 4 through the gap between the upper part of the cover body 1 and the bridge of the nose.

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

The above-mentioned straps 2 may be ear-hook straps 2 disposed on the left and right sides of the cover body 1 , or may be head-hook straps 2 disposed on the upper and lower ends of the cover body 1 .

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

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.

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