CN212817679U

CN212817679U - Mask with improved protection performance

Info

Publication number: CN212817679U
Application number: CN202020840499.8U
Authority: CN
Inventors: 张开文
Original assignee: Caiding Technology Chongqing Co Ltd
Current assignee: Caiding Technology Chongqing Co Ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-03-30
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses an improve barrier propterty's gauze mask, include: the nasal cavity supporting structure is fixed in the wearing cavity, a nasal cavity breathing closed bin is arranged in the middle of the nasal cavity supporting structure, the filter box is located at the bottom of the nasal cavity supporting structure, a filter element is placed in the filter box, the filter box sealing cover is detachably connected to the top of the filter box, a partition plate is arranged at the bottom end of the filter box, the bottom end of the partition plate is abutted to the top end of the filter element, and a first vent pipe and a second vent pipe are respectively arranged on the filter box sealing cover and distributed on two sides of the partition plate; and the filter box is communicated with the nasal cavity breathing closed bin through a first breather pipe and is communicated with the vent hole through a second breather pipe. The utility model discloses an improve barrier propterty's gauze mask, the expiration that admits air all filters through the filter cartridge, and the antivirus that disinfects spreads the effect obvious, and uses the comfort reinforcing, and reduce cost has reduced the risk of secondary spread virus.

Description

Mask with improved protection performance

Technical Field

The utility model relates to a protective articles technical field, more specifically the gauze mask that says so relates to an improve barrier propterty.

Background

The mask is a sanitary article, generally refers to a device worn at the mouth and nose part for filtering air entering the mouth and nose so as to prevent harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer, and is mainly divided into a medical mask and a civil mask, and most of the masks are disposable masks.

However, at present, the conventional disposable mask has short service time, poor comfort, low virus protection, large garbage treatment capacity, high treatment cost and larger risk of virus re-transmission. Moreover, the user inhales and exhales when using not separately, and the risk of breeding the bacterium again after using the gauze mask for a long time is big, and simultaneously, only simple protection does not disinfect the recuperation function, and the new trend air is poor after long-time the use, influences user's normal breathing.

Therefore, how to provide a multifunctional mask with improved protection performance is a problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a mask with improved protection performance, which solves at least one of the above technical problems in the prior art to a certain extent.

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

a mask having improved protective properties, comprising: the nasal cavity support structure is fixed in the wearing cavity, a nasal cavity breathing closed bin is arranged in the middle of the nasal cavity support structure, the filter box is positioned at the bottom of the nasal cavity support structure and is fixedly installed on the shell, a filter element is arranged in the filter box, the filter box sealing cover is detachably connected to the top of the filter box and is vertically fixed with a partition plate with the bottom surface, the filter element is positioned at the bottom of the partition plate, the top end of the filter element is abutted to the bottom end of the partition plate, and a first vent pipe and a second vent pipe are respectively arranged on the filter box sealing cover and are distributed on two sides of the partition plate; and the filter box is communicated with the nasal cavity breathing closed bin through the first vent pipe and is communicated with the vent hole through the second vent pipe.

The utility model discloses an improve gauze mask of barrier propterty places the filter core in the filter cartridge, no matter the new trend that the user breathes in or the gas of exhalation all need to pass through the filter core and filter, guarantee that the user breathes in fresh air and gets into the user's nasal cavity after disinfecting, the gas of user exhalation gets into the air again after disinfecting, not only the antivirus effect of disinfecting is obvious, has improved barrier propterty, and the risk of effectively preventing between the people through breathing the various virus bacterium of droplet propagation has also purified the air; the filter element is replaceable, so that the comprehensive use cost is reduced, the generation of garbage waste is reduced, and the risk of secondary propagation is reduced; simultaneously be provided with nasal cavity bearing structure wearing the intracavity, improve the comfort level that the gauze mask was worn to the user, can also select the nasal cavity bearing structure of suitable size according to user's actual demand, increase the comfort of wearing for a long time.

The periphery of the sealing cover of the filter box is provided with a leakage-proof air cushion ring, so that air can pass through the filter box as much as possible.

Preferably, the shell comprises a nose-imitating cover body and an oral cover body which are arranged up and down and integrally connected; the vent hole comprises an air inlet and an air outlet which are communicated with the second vent pipe, and the air inlet and the air outlet are symmetrically arranged at two side ends of the nose-imitating cover body; the nasal cavity supporting structure is fixed inside the nose-imitated cover body, two sides of the nasal cavity supporting structure are provided with chamber partition plates along the vertical direction, the chamber partition plates and the corresponding shell form an air suction chamber and an air exhaust chamber, the top of the air suction chamber is communicated with the air inlet, and the top of the air exhaust chamber is communicated with the air outlet; the filter box comprises an air inlet filter box and an air outlet filter box which are separately arranged in the mouth part cover body; an air inlet valve is fixedly arranged at a first breather pipe of the sealing cover corresponding to the air inlet filter box, and the air inlet filter box is communicated with the air suction bin through a second breather pipe on the air inlet filter box and is communicated with the nasal cavity breathing closed bin through the air inlet valve; the first breather pipe of the sealed lid that the filter cartridge that exhausts corresponds department fixed mounting has discharge valve, the filter cartridge that exhausts through its last second blast pipe with the storehouse of exhausting communicates with each other, through discharge valve with the airtight storehouse of nasal cavity breathing communicates with each other.

The beneficial effects of adopting technical scheme do, will admit air and exhale separately, when the people breathes in, the air gets into the storehouse of breathing in from the air inlet, gets into and admits air and filters in the box, and the air after the filtration passes through the admission valve and enters into the people in vivo, and when the people exhale, the gas of exhalation gets into the exhaust storehouse, discharges into in the exhaust filters the box through discharge valve, and the rethread gas vent after the filtration is discharged to the atmosphere. The user is guaranteed that fresh air inhaled by the user enters the nasal cavity of the user after being sterilized, disinfected and filtered, and air exhaled by the user enters the air again after being sterilized, filtered and disinfected, so that the risk of spreading various viruses and bacteria through breathing droplets between people can be effectively prevented, air pollution is reduced, and the spread of viruses in the air is effectively reduced.

Preferably, the shell comprises a nose-imitating cover body and an oral cover body which are arranged up and down and integrally connected, a cover body clapboard is arranged between the nose-imitating cover body and the oral cover body, and the middle part of the cover body clapboard is provided with a nasal breathing hole; the air vent comprises an air inlet and an air outlet which are symmetrically arranged at two side ends of the mouth part cover body, the filter box comprises an air inlet filter box and an air outlet filter box which are separately arranged in the mouth part cover body, the air inlet filter box and the corresponding mouth part cover body form an air suction bin, and the air outlet filter box and the corresponding mouth part cover body form an air exhaust bin;

an air inlet pipe is arranged on the sealing cover corresponding to the air inlet filter box, an air inlet valve is fixedly arranged on the sealing cover, and the air inlet filter box is communicated with the air suction bin through the air inlet pipe and communicated with the nasal cavity breathing closed bin through the air inlet valve; the sealed cover that the exhaust filter cartridge corresponds is provided with an exhaust pipe and is fixedly provided with an exhaust valve, the exhaust filter cartridge is communicated with the exhaust bin through the exhaust pipe and communicated with the nasal cavity breathing closed bin through the exhaust valve

The beneficial effects of adopting above-mentioned technical scheme do, will admit air and exhale separately, and when the people breathed in, the air got into from the air inlet and breathes in the storehouse, gets into and admits air and filters the box in, and the air after the filtration enters into the people's is internal through the admission valve, and when the people exhaled, the gas of exhalation got into the exhaust storehouse, discharged into the exhaust through discharge valve and filtered in the box, in rethread gas vent row to atmosphere after filtering. The user is ensured to inhale fresh air which enters the nasal cavity of the user after being sterilized, disinfected and filtered, and the gas exhaled by the user enters the air again after being sterilized, filtered and disinfected, so that the risk of spreading various viruses and bacteria between people through breathing droplets can be effectively prevented, air pollution is reduced, and the spread of viruses in the air is effectively reduced; meanwhile, the filter element has long service life and can be used for carrying out targeted filtration on impurities in the fresh air and viruses in the exhaled air.

Preferably, the air inlet valve comprises a first valve body, a first filter screen and a first gas spring plate, the first valve body is fixedly installed on the air inlet filter box, the first filter screen and the first gas spring plate are fixedly installed in the middle of the valve body, and the first filter screen is located at the bottom of the first gas spring plate; discharge valve includes second valve body, second filter screen and second gas reed, second valve body fixed mounting be in on the exhaust filter box, just the second filter screen with second gas reed fixed mounting in second valve body middle part, just the second filter screen is located the top of second gas reed.

The technical scheme has the beneficial effects that when a person inhales air, the first air spring plate is crossly cut into four sections, the second air spring plate cannot change under the blocking of the second filter screen, at the moment, the air inlet valve is opened, the exhaust valve is closed, the air inlet valve is opened to form an air inlet passage, and air inhaled by the human body is filtered by the filter element in the air inlet filter box, then filtered by the first filter screen and enters the nasal cavity; when exhaling, the second gas reed cross cuts and divides four lamellas, and first gas reed can not change under the blockking of first filter screen, and at this moment, discharge valve opens, and the admission valve is closed, and discharge valve opens and forms exhaust passage, and the rethread second filter screen filters after human expired gas filters through the second filter cartridge, and rethread blast pipe and gas vent are arranged to the atmosphere.

Preferably, N95 filter cotton is installed between the inlet filter box and the inlet port and between the outlet filter box and the outlet port.

Adopt above-mentioned technical scheme's beneficial effect to adopt N95 filter pulp, optimized the filter effect more.

Preferably, one side of the wearing cavity close to the face of the user is fixedly provided with a spongy cushion, a silica gel layer and sweat-absorbing flannelette in sequence.

Adopt above-mentioned technical scheme's beneficial effect to make the user wear closely, the leakproofness is strong, has improved the comfort level.

Preferably, a sterilizing solution, an aromatic, a nasopharynx treatment spray or a carsickness spray are placed in the air inlet filter box.

The nasopharynx treatment spray is placed in the air inlet filter box, so that a person can continuously inhale the spray, and the nasopharynx treatment effect is relieved; or the carsickness preparation is placed in the air inlet filter box, so that the carsickness can be slightly relieved for users.

Preferably, still include the straw, the casing corresponds user's oral area position department and has seted up the straw mounting hole, the straw can be dismantled and be fixed in mounting hole department, just slidable mounting has the sliding closure on the casing, the sliding closure slidable covers the mounting hole.

The beneficial effects of adopting above-mentioned technical scheme are that, can need not to remove gauze mask and eat the liquid food, the function is diversified.

Preferably, still include the dustcoat, the dustcoat set up in the filter cartridge outside, with the connection can be dismantled to the casing, just the dustcoat is equipped with the slot, individualized sticker is inserted in the slot.

The technical scheme has the beneficial effects that the fashionable, attractive and personalized customization is added.

Preferably, the casing adopts 60 degrees silica gel to make, nasal cavity bearing structure adopts the sponge to make, the filter cartridge adopts transparent plastic to make, the dustcoat adopts the ABS plastic to make.

Adopt above-mentioned technical scheme's beneficial effect is that, the casing adopts 60 degrees silica gel to make, increases the laminating degree, and nasal cavity bearing structure adopts the sponge to make, increases the comfort level that the user wore, and the filter box adopts transparent plastic to make, can observe from the outside how much and the cleanliness of liquid in the filter core.

According to the technical scheme, compared with the prior art, the utility model discloses a mask for improving the protective performance, the air inlet and the air outlet are filtered by the filter box, the sterilization and anti-virus transmission effects are obvious, the mask can be used for a long time, the comfortable feeling is enhanced, the cost is reduced, the garbage is reduced, and the risk of secondary virus transmission is reduced; in addition, an aromatic or a preparation with physiotherapy is placed in the filter box, a user can select and use the filter box according to needs, and meanwhile, the user can wear the mask and eat liquid diet at the same time, and personalized arrangement is carried out on the outer side of the mask, so that the fashionable feeling is increased.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the outside viewing angle provided by the present invention.

FIG. 3 is a schematic view of the overall structure of the inner side view angle provided by the present invention

Fig. 4 is a schematic diagram of an internal structure of one embodiment of the present invention.

Fig. 5 is a schematic diagram of the internal structure of another embodiment provided by the present invention.

Fig. 6 is an exploded view of the intake valve according to the present invention.

Fig. 7 is an exploded view of the exhaust valve according to the present invention.

Wherein, each figure is as follows:

1-shell, 2-filter box, 3-filter box sealing cover, 4-nasal cavity supporting structure, 5-vent hole, 6-air inlet pipe, 7-air inlet valve, 8-air outlet pipe, 9-air outlet valve, 10-N95 filter cotton, 11-sponge mat, 12-silica gel layer, 13-sweat absorbing lint, 14-suction pipe, 15-suction pipe mounting hole, 16-outer cover, 17-personalized paster, 18-clapboard; 19-a first vent pipe, 20-a second vent pipe;

101-a nose-imitating cover body, 102-an opening cover body, 103-a chamber partition plate, 104-a cover body partition plate, 201-an air inlet filter box, 202-an exhaust filter box, 501-an air inlet, 502-an exhaust port, 701-a first valve body, 702-a first filter screen, 703-a first gas reed, 901-a second valve body, 902-a second filter screen and 903-a second gas reed;

100-nasal breathing chamber, 200-inhalation chamber and 300-exhaust chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment 1 of the utility model provides an improve barrier propterty's gauze mask, a serial communication port, include: the nasal cavity breathing filter comprises a shell 1, a filter box 2, a filter box sealing cover 3 and a nasal cavity supporting structure 4, wherein air vents 5 are arranged on two sides of the shell 1, a wearing cavity is formed in the shell, the nasal cavity supporting structure 4 is fixed in the wearing cavity, a nasal cavity breathing airtight bin 100 is arranged in the middle of the nasal cavity supporting structure 4, the filter box 2 is positioned at the bottom of the nasal cavity supporting structure 4 and is fixedly arranged on the shell 1, a filter element is placed in the filter box 2, the filter box sealing cover 3 is detachably connected to the top of the filter box 2 and is vertically fixed with a partition plate 18 perpendicular to the bottom surface of the filter box, the filter element is positioned at the bottom of the partition plate 18, the top end of the filter element is abutted to; and the filter box 2 is communicated with the nasal cavity breathing closed bin through a first vent pipe and communicated with the vent hole 5 through a second vent pipe. Two sides of the shell 1 are fixedly provided with ear-band type or head-wearing type fixing bands.

The filter element is arranged in the filter box 2, and both fresh air and exhaled air inhaled by a user need to be filtered by the filter element, so that the fresh air inhaled by the user enters the nasal cavity of the user after being sterilized, disinfected and filtered, and the exhaled air enters the air again after being sterilized, filtered and disinfected, therefore, the filter box has the advantages of obvious sterilization and anti-virus effect, improved protective performance, effective prevention of risk of spreading various virus and bacteria through respiratory droplets between people, and reduction of emission of pollutants in the air; the filter element is replaceable, so that the comprehensive use cost is reduced, the generation of garbage waste is reduced, and the risk of secondary propagation is reduced; simultaneously be provided with nasal cavity bearing structure 4 wearing the intracavity, improve the comfort level that the gauze mask was worn to the user, can also select the nasal cavity bearing structure 4 of suitable size according to user's actual demand, increase the comfort of wearing for a long time.

The embodiment 2 of the utility model lies in that the shell 1 comprises a nose-imitating cover body 101 and an oral cover body 102 which are arranged up and down and are integrally connected; the vent 5 comprises an air inlet 501 and an air outlet 502 which are both communicated with the second vent, and the two are symmetrically arranged at the two side ends of the nose-imitating cover body 101; the nasal cavity supporting structure 4 is fixed inside the nose-imitating cover body 101, two sides of the nasal cavity supporting structure 4 are provided with chamber partition boards 103 along the vertical direction, the chamber partition boards 103 and the corresponding shells form an air suction chamber 200 and an air exhaust chamber 300, the top of the air suction chamber 200 is communicated with an air inlet 501, and the top of the air exhaust chamber 300 is communicated with an air outlet 502; the filter box 2 comprises an air inlet filter box 201 and an air outlet filter box 202 which are separately arranged in the mouth part cover body 102, an air inlet valve 7 is fixedly arranged at a first air pipe of a sealing cover corresponding to the air inlet filter box 201, the air inlet filter box 201 is communicated with the air suction bin 200 through a second air exhaust pipe, and is communicated with the nasal cavity breathing closed bin 100 through the air inlet valve 7; an exhaust valve 9 is fixedly arranged at a first vent pipe of the sealing cover corresponding to the exhaust filter box 202, and the exhaust filter box 202 is communicated with the exhaust bin 300 through a second exhaust pipe and communicated with the nasal cavity breathing closed bin 100 through the exhaust valve 9. At this time, the second exhaust pipe on the intake filter cassette 201 is the intake pipe 6, and the second exhaust pipe on the exhaust filter cassette 202 is the exhaust pipe 8.

The air inlet and the air outlet are separated, when a person inhales, air enters the air suction bin 200 from the air inlet 501 and enters the air inlet filter box 201, the filtered air enters the body of the person through the air inlet valve 7, when the person exhales, the exhaled air enters the air exhaust bin 300 and is exhausted into the air exhaust filter box 202 through the air exhaust valve 9, and the filtered air is exhausted to the atmosphere through the air exhaust port 502. The user is guaranteed that fresh air inhaled by the user enters the nasal cavity of the user after sterilization, disinfection and filtration, and air exhaled by the user enters the air again after sterilization, filtration and disinfection, so that the risk of spreading various viruses and bacteria through breathing droplets between people can be effectively prevented, air pollution is reduced, and the spread of viruses in the air is effectively avoided.

Embodiment 3 of the utility model lies in that, the casing includes a nose-imitating cover body 101 and an oral cover body 102, which are arranged up and down and integrally connected, a cover body partition plate 104 is arranged between the nose-imitating cover body 101 and the oral cover body 102, and the middle part of the cover body partition plate 104 is provided with a nasal breathing hole; the vent 5 comprises an air inlet 501 and an air outlet 502 which are symmetrically arranged at two side ends of the mouth part cover body 102, the filter box 2 comprises an air inlet filter box 201 and an air outlet filter box 202 which are separately arranged in the mouth part cover body 102, the air inlet filter box 201 and the corresponding mouth part cover body form an air suction bin 200, and the air outlet filter box 202 and the corresponding mouth part cover body form an air exhaust bin 300; an air inlet pipe 6 is arranged on the sealing cover corresponding to the air inlet filter box 201, an air inlet valve 7 is fixedly arranged on the sealing cover, the air inlet filter box 201 is communicated with the air suction bin 200 through the air inlet pipe 6, and is communicated with the nasal cavity breathing closed bin 100 through the air inlet valve 7; the corresponding sealing cover of the exhaust filter box 202 is provided with an exhaust pipe 8 and is fixedly provided with an exhaust valve 9, and the exhaust filter box 202 is communicated with the exhaust bin 300 through the exhaust pipe 8 and is communicated with the nasal cavity breathing closed bin 100 through the exhaust valve 9.

Embodiment 4 of the present invention resides in that the intake valve 7 includes a first valve body 701, a first filter screen 702 and a first gas spring plate 703, the first valve body 701 is fixedly installed on the intake filter box 201, and the first filter screen 702 and the first gas spring plate 703 are fixedly installed in the middle of the first valve body 701, and the first filter screen 702 is located at the bottom of the first gas spring plate 703; the exhaust valve 9 comprises a second valve body 901, a second filter screen 902 and a second gas spring plate 903, the second valve body 901 is fixedly installed on the exhaust filter box 202, the second filter screen 902 and the second gas spring plate 903 are fixedly installed in the middle of the second valve body 901, and the second filter screen 902 is located at the top of the second gas spring plate 903.

When a person inhales, the first air spring leaf 703 is crossly cut into four parts, the second air spring leaf 903 cannot change under the blocking of the second filter screen 902, at the moment, the air inlet valve 7 is opened, the air outlet valve 9 is closed, the air inlet valve 7 is opened to form an air inlet passage, and air inhaled by the person is filtered by the filter element in the air inlet filter box 201, then filtered by the first filter screen 702 and enters the nasal cavity; when exhaling, second gas reed 903 cross cuts and divides four lamellas, and first gas reed 703 can not change under the blockking of first filter screen 702, and at this moment, discharge valve 9 opens, and admission valve 7 closes, and discharge valve 9 opens and forms exhaust passage, and the gaseous rethread second filter screen 902 that rethread blast pipe 8 and gas vent 502 row to the atmosphere after filtering through second filter cartridge 202 of human body exhalation.

In embodiment 5 of the present invention, N95 filter cotton 10 is fixedly installed in both the suction chamber 200 and the exhaust chamber 300; the filtering effect is optimized, and the protection grade reaches the standard of N95.

The embodiment 6 of the utility model discloses a wear the chamber and be close to one side of user's face fixed mounting in proper order has foam-rubber cushion 11, silica gel layer 12 and sweat-absorbing cotton flannel 13, makes the user wear to paste really, and the leakproofness is strong, has improved the comfort level.

The embodiment 7 of the utility model is that the filter box 2 is internally provided with a sterilization solution, an aromatic, a nasopharyngeal therapy spray or a carsickness spray, and the nasopharyngeal therapy spray is arranged in the air inlet filter box, so that people can continuously suck the spray and have the relieving and treating effects on nasopharynx; or the carsickness preparation is placed in the air inlet filter box, so that the carsickness can be slightly relieved for users.

The embodiment 8 of the utility model provides a, still include straw 14, straw mounting hole 15 has been seted up to casing 1 corresponding user oral area position department, and straw 14 can be dismantled and be fixed in straw mounting hole 15 department, and slidable mounting has the sliding closure on casing 1, and the sliding closure slidable covers straw mounting hole 15. Can be used for eating liquid food without removing the mask, so that the mask has diversified functions.

Embodiment 9 of the utility model discloses an in, still include dustcoat 16, dustcoat 16 sets up in the filter cartridge 2 outside, can dismantle with casing 1 and be connected, and dustcoat 16 inboard has seted up the slot, can insert individualized sticker 17, inserts different pattern images according to user's hobby, also can be according to the individualized outer image of user's customization, like animal image, individual portrait or enterprise's advertisement, can be patient or medical personnel's relevant information card even.

The embodiment 10 of the utility model discloses an in, casing 1 adopts 60 degrees silica gel to make, and nasal cavity bearing structure 4 adopts the sponge to make, and filter cartridge 2 adopts transparent plastic to make, and the dustcoat 16 adopts the ABS plastic to make.

In addition, the air inlet pipe 6 can be externally connected with an oxygen bag or an oxygen bottle joint, so that the comfort of the patient is improved, and the nursing is convenient.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mask with improved protective performance, comprising: the nasal cavity breathing device comprises a shell (1), a filter box (2), a filter box sealing cover (3) and a nasal cavity supporting structure (4), wherein air vents (5) are formed in two sides of the shell (1), a wearing cavity is formed in the shell, the nasal cavity supporting structure (4) is fixed in the wearing cavity, a nasal cavity breathing airtight bin (100) is arranged in the middle of the nasal cavity supporting structure, the filter box (2) is located at the bottom of the nasal cavity supporting structure (4) and is fixedly installed on the shell (1), the top of the filter box (2) is open, and a filter element is placed in the filter box (2); the filter box sealing cover (3) is detachably connected to the top of the filter box (2), a partition plate (18) is vertically fixed to the bottom surface of the filter box sealing cover, the filter element is located at the bottom of the partition plate (18), and the top end of the filter element is abutted to the bottom end of the partition plate (18); a first vent pipe and a second vent pipe are respectively fixed on the sealing cover (3) of the filter box and distributed on two sides of the partition plate (18); and the filter box (2) is communicated with the nasal cavity breathing closed bin through the first vent pipe and communicated with the vent hole (5) through the second vent pipe.

2. Mask according to claim 1, characterized in that said shell (1) comprises a nose-imitating mask body (101) and a mouth mask body (102) which are arranged one above the other and integrally connected; the vent hole (5) comprises an air inlet (501) and an air outlet (502) which are both communicated with the second vent pipe, and the air inlet and the air outlet are symmetrically arranged at two side ends of the nose-imitating cover body (101); the nasal cavity supporting structure (4) is fixed inside the nose-imitated cover body (101), chamber partition plates (103) are arranged on two sides of the nasal cavity supporting structure (4) along the vertical direction, an air suction chamber (200) and an air exhaust chamber (300) are formed by the chamber partition plates (103) and corresponding shells, the top of the air suction chamber (200) is communicated with the air inlet (501), and the top of the air exhaust chamber (300) is communicated with the air outlet (502);

the filter box (2) comprises an air inlet filter box (201) and an air outlet filter box (202), and the air inlet filter box and the air outlet filter box are separately arranged in the mouth part cover body (102); an air inlet valve (7) is fixedly arranged at a first vent pipe of the sealing cover corresponding to the air inlet filter box (201), is communicated with the air suction bin (200) through the second vent pipe and is communicated with the nasal cavity breathing closed bin (100) through the air inlet valve (7); the first breather pipe department fixed mounting that the sealed lid that exhaust filter cartridge (202) correspond has discharge valve (9), exhaust filter cartridge (202) pass through the second breather pipe with exhaust storehouse (300) communicate with each other, through discharge valve (9) with nasal cavity breathes airtight storehouse (100) and communicates with each other.

3. The mask with the improved protection performance according to claim 1, wherein the shell comprises a nose-imitating mask body (101) and an oral mask body (102), the nose-imitating mask body (101) and the oral mask body (102) are arranged up and down and integrally connected, a mask body partition plate (104) is arranged between the nose-imitating mask body (101) and the oral mask body (102), and a nasal breathing hole is formed in the middle of the mask body partition plate (104); the vent hole (5) comprises an air inlet (501) and an air outlet (502), the air inlet and the air outlet are symmetrically arranged at two side ends of the mouth part cover body (102), the filter box (2) comprises an air inlet filter box (201) and an air outlet filter box (202), the air inlet filter box (201) and the air outlet filter box are separately arranged in the mouth part cover body (102), the air inlet filter box (201) and the corresponding mouth part cover body form an air suction bin (200), and the air outlet filter box (202) and the corresponding mouth part cover body form an air exhaust bin (300);

an air inlet pipe (6) is fixed at a second vent pipe of the sealing cover corresponding to the air inlet filter box (201), an air inlet valve (7) is fixedly installed at a position corresponding to the first vent pipe, and the air inlet filter box (201) is communicated with the air suction bin (200) through the air inlet pipe (6) and is communicated with the nasal cavity breathing closed bin (100) through the air inlet valve (7); the second breather pipe department of the sealed lid that exhaust filter cartridge (202) correspond is fixed with blast pipe (8), and its first breather pipe department fixed mounting that corresponds has discharge valve (9), exhaust filter cartridge (202) through blast pipe (8) with exhaust storehouse (300) communicate with each other, through discharge valve (9) with nasal cavity breathes airtight storehouse (100) and communicates with each other.

4. The mask according to claim 2 or 3, wherein the air inlet valve (7) comprises a first valve body (701), a first filter screen (702) and a first air spring (703), the first valve body (701) is fixedly installed on the air inlet filter box (201), the first filter screen (702) and the first air spring (703) are fixedly installed in the middle of the first valve body (701), and the first filter screen (702) is located at the bottom of the first air spring (703);

the exhaust valve (9) comprises a second valve body (901), a second filter screen (902) and a second gas reed (903), the second valve body (901) is fixedly installed on the exhaust filter box (202), the second filter screen (902) and the second gas reed (903) are fixedly installed in the middle of the second valve body (901), and the second filter screen (902) is located at the top of the second gas reed (903).

5. The mask with the improved protection performance according to claim 4, wherein N95 filter cotton (10) is fixedly arranged in each of the air suction bin (200) and the air exhaust bin (300).

6. The mask with the improved protection performance according to claim 5, wherein a sponge cushion (11), a silica gel layer (12) and sweat-absorbing flannelette (13) are fixedly arranged on one side of the wearing cavity close to the face of a user in sequence.

7. Mask according to claim 1, characterized in that a sterilizing solution, an aromatic, a nasopharyngeal treatment spray or a carsickness spray is placed in the filter box (2).

8. The mask with the improved protection performance according to claim 7, further comprising a straw (14), wherein a straw mounting hole (15) is formed in the position, corresponding to the mouth of the user, of the shell (1), the straw (14) is detachably fixed to the straw mounting hole (15), a sliding cover is slidably mounted on the shell (1), and the sliding cover can slidably cover the straw mounting hole (15).

9. The mask with the improved protection performance according to claim 8, further comprising an outer cover (16), wherein the outer cover (16) is arranged on the outer side of the filter box (2) and detachably connected with the shell (1), the outer cover (16) is provided with a slot, and the personalized paster (17) is inserted into the slot.

10. The mask with the improved protection performance according to claim 9, wherein the shell (1) is made of 60-degree silica gel, the nasal cavity supporting structure (4) is made of sponge, the filter box (2) is made of transparent plastic, and the outer cover (16) is made of ABS plastic.