CN207101659U

CN207101659U - Breather valve and mouth mask

Info

Publication number: CN207101659U
Application number: CN201720998751.6U
Authority: CN
Inventors: 李昕炜
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-10
Filing date: 2017-08-10
Publication date: 2018-03-16
Anticipated expiration: 2027-08-10

Abstract

The utility model provides a kind of breather valve and mouth mask, is related to the technical field of living nursing apparatus.Breather valve includes lid, protective sheet, base, filter and swivelling cover；Lid has raised chamber, and the end face of base, which has, is connected to protective sheet in chamber with chamber protrusion direction identical lug boss, lug boss, and the cover plate connection of protective sheet end face and chamber, protective sheet other end is connected with lug boss；Filter end face is connected with base other end, and filter other end is connected with swivelling cover.Solve existing breather valve when in use, to extraneous dusty gas poor processing effect, cause extraneous the problem of there is the gas of pollution to be damaged to human body.The protective sheet set between lid and base, the filter set between base and swivelling cover, double-deck processing is carried out to extraneous dusty gas, the gas for making to have pollution will not enter respiratory tract from the nasal cavity of user, strengthen breather valve filter effect.

Description

Breather valve and mouth mask

Technical field

The technical field of living nursing apparatus is the utility model is related to, more particularly, to a kind of breather valve and mouth mask.

Background technology

With industrialized continuous development, China's urban air pollution is increasingly severe, causes every winter just to occur Haze weather, haze is a kind of common meteorological disaster, after people suck haze, respiratory system, cardiovascular system to human body Serious damage will be caused, so as to trigger the diseases such as chronic bronchitis, asthma；In addition, haze weather also results in near-earth Layer ultraviolet weakens, and finally makes the increased activity of the infectiousness germ in air, infects the several of infectious disease so as to add people Rate, it is chronically in haze weather, serious threat is caused to the health of people.

In order to avoid haze injures to caused by people's body, when people go out, mouth mask is generally worn with to haze Air is filtered, so as to breathe clean air.Mouth mask refers to the snout for being worn on user as a kind of amenities Position, for filtering the air into mouth and nose, so as to have the function that blocking harmful gas, smell, the spittle, the sky to entering lung Gas is filtered, and can effectively avoid the infection probability of respiratory infectious disease.

In the prior art, the structure of mouth mask mainly includes：Non-woven fabrics, breather valve and ear-hang, need oral area during use It is enclosed in the position of nose in non-woven fabrics, the nose of breather valve face user, breather valve is handed over as inside and outside gas The main thoroughfare changed, in order to ensure gas permeability, air-vent is provided with breather valve, for a long time in use, mistake at breather valve Filter disc can not be also cleared up extraneous dusty gas, cause the extraneous gas with pollution to enter the respiratory system of user, Human body is damaged.

Utility model content

The purpose of this utility model is to provide a kind of breather valve, to solve breather valve of the prior art when in use, To the poor processing effect of extraneous dusty gas, the extraneous gas with pollution is caused to enter the respiratory system of user, to human body The problem of damaging.

The utility model additionally provides a kind of mouth mask, and to solve mouth mask of the prior art when in use, mouth mask is to the external world Dusty gas poor processing effect, the problem of being damaged to human body.

A kind of breather valve provided by the utility model, including lid, protective sheet, base, filter and swivelling cover；

The lid has raised chamber, and the end face of the base is with convex with the chamber protrusion direction identical The protective sheet is connected in the chamber by the portion of rising, the lug boss, the cover plate of the protective sheet end face and the chamber Connection, the protective sheet other end is connected with the lug boss；

The filter end face is connected with the base other end, the filter other end and the swivelling cover Connection.

Further, the cover plate of the chamber is provided with fixing groove, and connecting hole, the projection are provided with the protective sheet Portion's end face is provided with connecting pole；

The connecting pole is connected in the fixing groove through the connecting hole, and the protective sheet exists along the connecting pole Moved between the lid and the base.

Further, the connection bore dia is more than the diameter of the connecting pole.

Further, the protective sheet end face is provided with the first protruding ring, and the edge of the connecting hole end face is provided with the Two protruding rings, the first protruding ring and the second protruding ring of the protective sheet end face are connected with the cover plate of chamber.

Further, the protective sheet both ends of the surface are respectively equipped with the first protruding ring, the edge point of the connecting hole both ends of the surface She You not the second protruding ring；

The first protruding ring and the second protruding ring of the protective sheet end face are connected with the cover plate of chamber, and protective sheet is another The first protruding ring and the second protruding ring of end face are connected with lug boss.

Further, the ventilation slot for exchanging outside air is provided with the side wall of the chamber.

Further, the lug boss end face is provided with hollowed-out board, and the connecting pole is arranged at the hollowed-out board center, Multiple air exchange grooves are uniformly arranged on the hollowed-out board, the protective sheet other end is bonded with multiple air exchange grooves Connection；

The lug boss other end has annular groove, and the filter is connected in the annular groove；The filter For annular, the inner ring of the filter communicates with the air exchange groove.

Further, the 3rd protruding ring is provided with the side wall of the swivelling cover end face, is set on the 3rd protruding ring Limited block is equipped with, the quantity of the limited block is even number；

Stopper slot is provided with the annular groove, the quantity of the stopper slot is identical with the quantity of the limited block, described Limited block is connected with the stopper slot, for the swivelling cover to be connected with the base.

Further, the madial wall of the chamber is provided with the 4th protruding ring, and the lateral wall of the lug boss is convex provided with the 5th Ring is played, the 4th protruding ring is connected with the 5th protruding ring, so that the lid is connected with the base.

The utility model also provides a kind of mouth mask, including mask and described breather valve；

The breather valve is connected with the mask.

Breather valve provided by the utility model, the right-hand member of the lid have raised chamber, the left side of the base It is described anti-with the protective sheet is connected in the chamber with the chamber protrusion direction identical lug boss, lug boss The left side of bluff piece is connected with the cover plate of the chamber, and the right side of the protective sheet is connected with the lug boss, and user exhales During gas, protective sheet has active force to the right, the left side of protective sheet moves to the chamber of left end under the active force of breath On cover plate, user can discharge gas, and during user's air-breathing, protective sheet has work to the right under the active force of breath Firmly, the right side of protective sheet is moved on the lug boss of right-hand member, can be reached and be stopped that extraneous pernicious gas enters base Effect；Right side is connected with filter left side on the base, and filter right side is connected with swivelling cover, extraneous pernicious gas The left end of base is entered, pernicious gas can be filtered in the filter that the right-hand member of base connects, avoid pernicious gas not Respiratory tract is entered through processing；Extraneous pernicious gas first passes through the stop of the protective sheet of base left end, then by right positioned at base The filtering of the filter at end, double-deck processing is realized, makes the protective action of breather valve stronger, ensure that health, enhance and exhale Inhale the using effect of valve.

Mouth mask provided by the utility model, including mask and described breather valve, the breather valve are connected with the mask. Through hole is provided with the mask, the edge of the through hole of the mask is clamped between the base of breather valve and lid, you can real The installation operation of existing mask and breather valve, and when cleaning mask, breather valve can be pulled down, realize that mouth mask uses various Property.

Brief description of the drawings

, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation for the breather valve that the utility model embodiment provides；

Fig. 2 is the exploded view for the breather valve that the utility model embodiment provides；

Fig. 3 is the structural representation for the protective sheet that the utility model embodiment provides；

Fig. 4 is the structural representation for the lid end face that the utility model embodiment provides；

Fig. 5 is the structural representation for the lid other end that the utility model embodiment provides；

Fig. 6 is the structural representation for the base end face that the utility model embodiment provides；

Fig. 7 is the structural representation for the base other end that the utility model embodiment provides；

Fig. 8 is the structural representation for the swivelling cover that the utility model embodiment provides.

Icon：11- lids；12- protective sheets；13- bases；14- filters；15- swivelling covers；111- chambers；112- is fixed Groove；113- ventilation slots；The protruding rings of 114- the 4th；121- connecting holes；The protruding rings of 122- first；The protruding rings of 123- second；131- is convex The portion of rising；132- connecting poles；133- hollowed-out boards；134- air exchange grooves；135- annular grooves；The protruding rings of 136- the 5th；137- is spacing Groove；The protruding rings of 151- the 3rd；152- limited blocks.

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

, it is necessary to explanation in description of the present utility model, such as occur term " " center ", " on ", " under ", " left side ", The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " interior ", " outer " are based on orientation shown in the drawings or position Relation, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply that signified device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.This Outside, such as there is term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or implying relatively heavy The property wanted.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term such as occurs in description of the present utility model " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition State concrete meaning of the term in the utility model.

Fig. 1 is the structural representation for the breather valve that the utility model embodiment provides；Fig. 2 carries for the utility model embodiment The exploded view of the breather valve of confession.

As shown in Figure 1-2, breather valve provided by the utility model includes lid 11, protective sheet 12, base 13, filter 14 With swivelling cover 15；The lid 11 has raised chamber 111, and the end face of the base 13 is with convex with the chamber 111 Direction identical lug boss 131 is played, the protective sheet 12 is connected in the chamber 111 by the lug boss 131, the protection The end face of piece 12 is connected with the cover plate of the chamber 111, and the other end of protective sheet 12 is connected with the lug boss 131；Institute State the end face of filter 14 to be connected with the other end of base 13, the other end of filter 14 connects with the swivelling cover 15 Connect.

The right-hand member of the lid 11 has chamber 111 raised to the left, and the left side of the base 13 has and the chamber The protrusion direction identical lug boss 131 of room 111, the protective sheet 12 is connected in the chamber 111 by lug boss 131, described The left side of protective sheet 12 is connected with the cover plate of the chamber 111, and the right side of the protective sheet 12 connects with the lug boss 131 Connect, when user exhales, protective sheet 12 has active force to the right, the left side fortune of protective sheet 12 under the active force of breath Move on the cover plate of chamber 111 of left end, user can discharge gas, and during user's air-breathing, protective sheet 12 is in breath Under active force, there is active force to the right, the right side of protective sheet 12 is moved on the lug boss 131 of right-hand member, can reach resistance Keep off the effect that extraneous pernicious gas enters base 13；Right side is connected with the left side of filter 14 on the base 13, filtering The right side of piece 14 is connected with swivelling cover 15, and extraneous pernicious gas enters the left end of base 13, is connected in the right-hand member of base 13 Filter 14 can filter to pernicious gas, avoid pernicious gas is unprocessed from entering respiratory tract；Extraneous pernicious gas is first By the stop of the protective sheet 12 of the left end of base 13, then the filtering by the filter 14 positioned at the right-hand member of base 13, realize double-deck Processing, makes the protective action of breather valve stronger, ensure that health, enhance the using effect of breather valve.

Wherein, protective sheet 12 can soak the rubber ring of thimerosal, and the energy blocking harmful gas of protective sheet 12 enters nose Chamber, and preliminary processing can be carried out to pernicious gas；Filter 14 can be the rubber ring for soaking medicinal herbs, soak medicinal herbs Rubber ring can purify the air of breathing, it is good for health, and with the function of dehumidifying.

Fig. 3 is the structural representation for the protective sheet that the utility model embodiment provides；Fig. 4 carries for the utility model embodiment The structural representation of the lid end face of confession；Fig. 5 is the structural representation for the lid other end that the utility model embodiment provides Figure.

As in Figure 3-5, the cover plate of the chamber 111 is provided with fixing groove 112, and connection is provided with the protective sheet 12 Hole 121, the end face of lug boss 131 are provided with connecting pole 132；The connecting pole 132 is connected to through the connecting hole 121 In the fixing groove 112, the protective sheet 12 is moved along the connecting pole 132 between the lid 11 and the base 13 It is dynamic.

Fixing groove 112 is provided with the middle part of cover plate in chamber 111, the middle part of protective sheet 12 is provided with connecting hole 121, Connecting pole 132 is provided with the left side of the lug boss 131 of the left end of base 13, connecting pole 132 is connected to solid through connecting hole 121 Determine on groove 112；When user exhales, protective sheet 12 has active force to the right, the company of protective sheet 12 under the active force of breath Connect hole 121 moved to along connecting pole 132 from the left side of lug boss 131 left end chamber 111 cover plate fixing groove 112 on, User can discharge gas；During user's air-breathing, protective sheet 12 has active force to the right under the active force of breath, The connecting hole 121 of protective sheet 12 along connecting pole 132 from the lug boss 131 that the end face of the cover plate of chamber 111 moves to right-hand member, can To have the function that to stop that extraneous pernicious gas enters base 13.Protective sheet 12 is in the motion process with air-breathing of exhaling, even Connect hole 121 to move along connecting pole 132, avoid protective sheet 12 from being folded in motion process, realize the motion of anti-protective sheet 12 more Stable, using effect is more preferable.

Further, the diameter of connecting hole 121 is more than the diameter of the connecting pole 132.

Protective sheet 12 exhale and the motion process of air-breathing in, the connecting pole 132 of the connecting hole 121 of protective sheet 12 along setting Motion, the diameter of connecting hole 121 are more than the diameter of connecting pole 132, can user exhaled, air-breathing when, drive faster Dynamic protective sheet 12 is moved, and is advantageous to the more smooth of the motion of protective sheet 12, using effect is more preferable.

Further, the end face of protective sheet 12 is provided with the first protruding ring 122, the side of the end face of connecting hole 121 Edge is provided with the second protruding ring 123, and the first protruding ring 122 and the second protruding ring 123 of the end face of protective sheet 12 are and chamber 111 cover plate connection.

The left side of protective sheet 12 is provided with the first protruding ring 122, and the edge of the left side of connecting hole 121 is provided with Two protruding rings 123, the first protruding ring 122 of the left side of protective sheet 12 and the second protruding ring 123 and the cover plate of left chamber 111 connect Connect；During expiration, because gas has heat, steam is produced, the first protruding ring 122 and second of the left end of protective sheet 12 is raised Ring 123 is moved on the cover plate of chamber 111, is made gap be present between the cover plate of protective sheet 12 and chamber 111, will not be adsorbed and cover On plate, using effect is more preferable.

Further, the both ends of the surface of protective sheet 12 are respectively equipped with the first protruding ring 122, the both ends of the surface of connecting hole 121 Edge be respectively equipped with the second protruding ring 123；The first protruding ring 122 and the second protruding ring 123 of the end face of protective sheet 12 Cover plate with chamber 111 is connected, the first protruding ring 122 and the second protruding ring 123 of the other end of protective sheet 12 with projection Portion 131 connects.

The left and right end face of protective sheet 12 is provided with the first protruding ring 122, the edge of the left and right end face of connecting hole 121 It is provided with the second protruding ring 123, the first protruding ring 122 of the left side of protective sheet 12 and the second protruding ring 123 and left chamber 111 Cover plate connection, the first protruding ring 122 of the right side of protective sheet 12 and the second protruding ring 123 and the projection of right chamber 111 Portion 131 connects；During expiration, because gas has heat, steam, the He of the first protruding ring 122 of the left end of protective sheet 12 are produced Second protruding ring 123 is moved on the cover plate of chamber 111, makes gap be present between the cover plate of protective sheet 12 and chamber 111, will not Absorption on the cover board, during air-breathing, because gas has heat, produces steam, the first protruding ring 122 of the right-hand member of protective sheet 12 Moved to the second protruding ring 123 on lug boss 131, make gap be present between protective sheet 12 and lug boss 131, will not adsorb On lug boss 131, using effect is more preferable.

Further, the ventilation slot 113 for exchanging outside air is provided with the side wall of the chamber 111.

During user's air-breathing, pernicious gas will not the nasal cavity of directly face user be adsorbed, pernicious gas is only from side By the way that the gas passed through is less, and when exhaling, gas can also be directly from the side wall of chamber 111 in the ventilation slot 113 of wall Ventilation slot 113 be directly excluded, gas needs that the distance moved is shorter, and discharge faster, realizes more preferable using effect.

Fig. 6 is the structural representation for the base end face that the utility model embodiment provides；Fig. 7 is implemented for the utility model The structural representation for the base other end that example provides.

As shown in fig. 6-7, the end face of lug boss 131 is provided with hollowed-out board 133, and the connecting pole 132 is arranged on described At the center of hollowed-out board 133, multiple air exchange grooves 134, the other end of protective sheet 12 are uniformly arranged on the hollowed-out board 133 It is fitted and connected with multiple air exchange grooves 134；The other end of lug boss 131 has annular groove 135, the filter 14 are connected in the annular groove 135；The filter 14 is annular, the inner ring of the filter 14 and the air exchange groove 134 communicate.

The left side of lug boss 131 is provided with hollowed-out board 133, and multiple air exchange grooves have been uniformly arranged on hollowed-out board 133 134, air exchange groove 134 can discharge the gas that nasal cavity breathes out out of base 13 that communicated with housing, and hollowed-out board 133 The upper support for forming air exchange groove 134 can support the protective sheet 12 contacted with the left side of lug boss 131, avoid protective sheet 12 Move in base 13；The right side of lug boss 131 has annular groove 135, and filter 14 is located in annular groove 135, can be right Filtered by the pernicious gas of base 13, avoid pernicious gas from being adsorbed by user, and filter 14 is annular, mistake The inner ring of filter disc 14 is communicated with air exchange groove 134, and the gas that can breathe out user is discharged.

As shown in figure 8, being provided with the 3rd protruding ring 151 in the side wall of the end face of swivelling cover 15, the described 3rd is raised Limited block 152 is provided with ring 151, the quantity of the limited block 152 is even number；Limited location is set in the annular groove 135 Groove 137, the quantity of the stopper slot 137 is identical with the quantity of the limited block 152, the limited block 152 and the stopper slot 137 connections, for the swivelling cover 15 to be connected with the base 13.

The 3rd protruding ring 151 is provided with the left side of swivelling cover 15, limited block 152 is provided with the 3rd protruding ring 151, The quantity of limited block 152 is even number, and stopper slot 137, the quantity of stopper slot 137 are provided with the annular groove 135 of the right-hand member of base 13 Identical with the quantity of limited block 152, limited block 152 is connected with stopper slot 137, makes the 3rd protruding ring 151 along annular groove 135 Certain angle is moved, due to the effect of frictional force, you can locking swivelling cover 15 revolves in the left side of base 13 in the opposite direction Turn same angle, you can realize separation swivelling cover 15 and base 13, carry out filter 14 takes work, side simple to operate Just.

Further, the madial wall of the chamber 111 is provided with the 4th protruding ring 114, and the lateral wall of the lug boss 131 is set Have the 5th protruding ring 136, the 4th protruding ring 114 is connected with the 5th protruding ring 136 so that the lid 11 with The base 13 connects.

The 4th protruding ring 114 is provided with the madial wall of chamber 111, on the lateral wall of the lug boss 131 of the left end of base 13 The 5th protruding ring 136 is provided with, can be to base by the frictional force between the 4th protruding ring 114 and the 5th protruding ring 136 13 and during 11 inward force of lid, the 5th protruding ring 136 moves to the inner side of the 4th protruding ring 114, and the 4th protruding ring 114 plays The effect of the 5th protruding ring 136 is fixed, is connected firmly, effect is good, and the 4th protruding ring 114 and the 5th protruding ring 136 can be with Rounding, when realizing connection, operation is simpler.

The utility model also provides a kind of mouth mask, including mask and described breather valve, the breather valve and the mask Connection.

Through hole is provided with the mask, the size of through hole and the matching size of breather valve close, and through hole is positioned against making At the nasal cavity of user, the edge of the through hole of the mask is clamped between the base 13 of breather valve and lid 11, you can realizes face The installation operation of cover and breather valve, and when cleaning mask, breather valve can be pulled down, realize the diversity that mouth mask uses.

In summary, breather valve provided by the utility model, the right-hand member of the lid 11 have raised chamber 111, institute State the left side of base 13 have with the protrusion direction identical lug boss 131 of chamber 111, lug boss 131 is by the protection Piece 12 is connected in the chamber 111, and the left side of the protective sheet 12 is connected with the cover plate of the chamber 111, the protection The right side of piece 12 is connected with the lug boss 131, user exhale when, protective sheet 12 under the active force of breath, have to Right active force, the left side of protective sheet 12 are moved on the cover plate of chamber 111 of left end, and user can discharge gas, During user's air-breathing, protective sheet 12 has active force to the right, the right side of protective sheet 12 moves under the active force of breath On the lug boss 131 of right-hand member, it can have the function that to stop that extraneous pernicious gas enters base 13；Right-hand member on the base 13 Face is connected with the left side of filter 14, and the right side of filter 14 is connected with swivelling cover 15, and extraneous pernicious gas enters base 13 Left end, base 13 right-hand member connect filter 14 pernicious gas can be filtered, avoid pernicious gas unprocessed Enter respiratory tract；Extraneous pernicious gas first passes through the stop of the protective sheet 12 of the left end of base 13, then by right positioned at base 13 The filtering of the filter 14 at end, double-deck processing is realized, makes the protective action of breather valve stronger, ensure that health, enhance The using effect of breather valve.

Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims

1. a kind of breather valve, it is characterised in that including lid (11), protective sheet (12), base (13), filter (14) and rotation Cover (15)；

The lid (11) has raised chamber (111), and the end face of the base (13) is with convex with the chamber (111) Direction identical lug boss (131) is played, the protective sheet (12) is connected in the chamber (111) by the lug boss (131), Protective sheet (12) end face is connected with the cover plate of the chamber (111), protective sheet (12) other end with it is described convex Play portion (131) connection；

Filter (14) end face is connected with the base (13) other end, filter (14) other end and institute State swivelling cover (15) connection.

2. breather valve according to claim 1, it is characterised in that the cover plate of the chamber (111) is provided with fixing groove (112) connecting hole (121), is provided with the protective sheet (12), lug boss (131) end face is provided with connecting pole (132)；

The connecting pole (132) is connected in the fixing groove (112) through the connecting hole (121), the protective sheet (12) Moved along the connecting pole (132) between the lid (11) and the base (13).

3. breather valve according to claim 2, it is characterised in that connecting hole (121) diameter is more than the connecting pole (132) diameter.

4. breather valve according to claim 1, it is characterised in that protective sheet (12) end face is provided with the first protruding ring (122), the edge of connecting hole (121) end face is provided with the second protruding ring (123), and the of protective sheet (12) end face The cover plate of one protruding ring (122) and the second protruding ring (123) with chamber (111) is connected.

5. breather valve according to claim 1, it is characterised in that it is convex that protective sheet (12) both ends of the surface are respectively equipped with first Ring (122) is played, the edge of connecting hole (121) both ends of the surface is respectively equipped with the second protruding ring (123)；

Cover plate of the first protruding ring (122) and the second protruding ring (123) of protective sheet (12) end face with chamber (111) Connection, first protruding ring (122) and the second protruding ring (123) of protective sheet (12) other end are connected with lug boss (131).

6. breather valve according to claim 1, it is characterised in that be provided with the side wall of the chamber (111) for handing over Change the ventilation slot (113) of outside air.

7. breather valve according to claim 1, it is characterised in that lug boss (131) end face is provided with hollowed-out board (133), the connecting pole (132) is arranged at the hollowed-out board (133) center, is uniformly arranged on the hollowed-out board (133) more Individual air exchange groove (134), protective sheet (12) other end are fitted and connected with multiple air exchange grooves (134)；

Lug boss (131) other end has annular groove (135), and the filter (14) is connected to the annular groove (135) in；The filter (14) is annular, and the inner ring of the filter (14) communicates with the air exchange groove (134).

8. breather valve according to claim 7, it is characterised in that be provided with the side wall of swivelling cover (15) end face 3rd protruding ring (151), limited block (152), the quantity of the limited block (152) are provided with the 3rd protruding ring (151) For even number；

Stopper slot (137), quantity and the limited block (152) of the stopper slot (137) are provided with the annular groove (135) Quantity it is identical, the limited block (152) is connected with the stopper slot (137), for by the swivelling cover (15) and the bottom Seat (13) connection.

9. breather valve according to claim 1, it is characterised in that it is raised that the madial wall of the chamber (111) is provided with the 4th Ring (114), the lateral wall of the lug boss (131) are provided with the 5th protruding ring (136), the 4th protruding ring (114) with it is described 5th protruding ring (136) is connected, so that the lid (11) is connected with the base (13).

10. a kind of mouth mask, it is characterised in that including mask and breather valve as claimed in any one of claims 1-9 wherein；

The breather valve is connected with the mask.