CN205759180U - A kind of mask breather valve - Google Patents

Abstract

nullThe utility model discloses a kind of many valves membrane combination formula mask breather valve，It is characterized in that valve film is that 2 lobe above film limb is constituted，Between film limb, there is certain distance in the gap of adjacent edge，Its advantage is to extend diaphragm girth，Increase torque ratio，Expand and discharge flow area，Significant increase waste gas expulsion efficiency，Diaphragm has more than 1 to position hole，Corresponding locating dowel is had in valve torr，Diaphragm frame in valve torr has press mold following，Coordinate with the press mold top of the press mold cylinder in valve gap and can push down and fix many valves diaphragm，Breather valve is by detachable card buckle ring and changeable type moulding cover independent assortment，Valve backing has latch ring design，Card buckle ring has an arch-shaped supporting arch to connect the card buckle teeth at two ends，Card buckle teeth is convex with the tooth of described card ring gear to match with clamping mask body or filter disc，Moulding cover is attached on valve gap face by buckle or draw-in groove card，Depressed part is had bottom moulding cover，Can the binding such as embedded magnet，Independent assortment one-object-many-purposes can be accomplished.

Description

A kind of mask breather valve

Technical field

This utility model relates to a kind of mask breather valve, a kind of piece combined breather valve of many valves.

Background technology

Putting on mask is nearly all unavoidable selection, because the respiratory resistance of mask filtering material certainty reduces wears Comfortableness, then people have invented the mask with breather valve, the operation principle of this simple diaphragm type one-way breather valve It is essentially all: the malleation produced in mask upon exhalation and exhaled air flow blow diaphragm open, discharges steam, waste gas；Work as time-out During breathing, diaphragm is closed or when air-breathing naturally because producing negative pressure in mask and adhesive is closed.

It is all good that people invent the original intention of such breather valve, but the actual effect that good idea not necessarily creates Really, where you are and where it's at you see, we have found that and wear so mask with breather valve in real life, and such breather valve is also Do not play how many practical functions, unfortunately be that a lot of breather valve is even without playing any effect.

We have bought a lot of masks with such breather valve on the market and have tested, and find only to be similar to 3M mask Rectangle like valve film (a13 in Fig. 1) and another quadrant valve diaphragm (a14 in Fig. 2) also have certain effect, eupnea In the case of valve film be also merely able to open a little, limited by the point of conflicting of design on breather valve lid, firmly hurriedly breathed feelings At most also can only open about 3mm under condition, the effect under general real life scenarios is in fact and inconspicuous；But, the most absolutely Most of breather valves are all the circular valve films (a15 in Fig. 3) used, in actual test, and such circle under eupnea state Shape diaphragm does not the most open, and has its shape the most on foot, only just can open a little when with oral cavity forced expiration, it is clear that Do not have practical significance, be only to increase unnecessary cost, waste resource, the amusement as attraction that has been only many ?.

Obviously, the original intention of these breather valves design is all good certainly, there will be this situation that things turn out contrary to one's wishes why ?？Being found by analysis, rectangle and fan-shaped diaphragm can also open a bit, and (in Fig. 1, a13's is double empty for the arm of force of diaphragm applied force Shown in line 108) ratio of shaft length (in Fig. 1 shown in single dotted line 103 of a13) that opens with diaphragm is bigger, and generally higher than 1, this Sample, the torque ratio of moment and shaft length is the most relatively large, and because the construction features of circular film and material itself interior Stress, when the deficiency of air breathed out with greatly to the when of pushing whole diaphragm open, it does not all open with centre point for rotating shaft, But can with circular one a diameter of open turn and be axially perpendicular to what the radial direction of this diameter opened, therefore circular film Arm of force radius and the ratio of shaft diameter length be obviously equal to 0.5, the area of arm of force stress is less, it is clear that torque ratio is not enough the former 1/3.

Analysis reason finds, because the shaft length that diaphragm opens is the longest, due to the internal stress of material itself, diaphragm opens The dynamics needed will be the biggest, and the area of diaphragm applied force is the biggest, and moment also can be the biggest, and the torque ratio of moment and shaft length is also Can be the biggest, so rectangle can only open a little under eupnea state, and circular film can not open and not wonder, circle Shape diaphragm is clearly a kind of design defect assumed as a matter of course, is not only just to be fully able to by thinning diaphragm thickness change, because Diaphragm is the thinnest, may leak gas not because adhesive force in the case of breathing power is little, the most likely can be because of during rapid air-breathing Negative pressure state deforms upon and leaks gas, even can not return.

Although the torque ratio of rectangle and fan-shaped diaphragm is more greatly, it is clear that air-flow can only be from the 3 of breather valve exhaling hole Edge direction flows out, because being limited by breathing the spacing summit in valve gap, the distalmost end of diaphragm also can only open about 3mm, And opening width is narrower at nearly rotating shaft, it is clear that when the area of air-flow flow export is the biggest, under kindred circumstances, the gas of exhalation is the most, The resistance exhaled also can be the least, and people also may feel that the most comfortable the most naturally, and this air stream outlet area is equal to the length on 3 limits It is multiplied by the height opened.

Obviously want to strengthen the discharge area of this exhaled air flow, can take to strengthen the way of the height that diaphragm opens, The way of diaphragm thickness be can also take to reduce, the drawback that diaphragm is the thinnest, moreover the silica gel of existing product elaborated Diaphragm the most all only has about 0.3mm.Although the exhalation limit of circular film exhaled air flow is exactly circular girth, seems and compare rectangle 3 limits are big, and in the geometric figure of practically identical area, circular girth is minimum, and the stress structure of circular film determines Air-flow exhalation limit will not be the length of whole circumference, and therefore area is big unlike rectangle.

It is limited to the restriction of the breather valve size as mask aerofluxus, in the situation of same film sheet material same thickness Under, changing the shape of diaphragm, improve the torque ratio of diaphragm, extend the length of side at diaphragm edge, the area i.e. increasing air-flow exhalation is We it is conceivable that simple effective method.Therefore, we have searched all of of this sort one-way breather valve, on the market One-way breather valve mask be entirely the diaphragm of full wafer of monolithic, use most the most only amusement, waste resource, do not have most Useful circular film breather valve, we even have reason to suspect whether designer used self-designed product, next to that length Square, fan-shaped, the entirely breather valve of full wafer diaphragm-type.

Utility model content

According to above-mentioned investigation and analysis, with simple and practical as principle, the utility model proposes many valves valve film The design of many valves combination type breather valve, it is possible to improve the waste gas expulsion efficiency of existing breather valve, effectively both simple and effectively Promote the comfort level of user, be truly realized and make the best use of everything.

This utility model mentality of designing implements the simplest: be exactly by the circle of original full wafer or square valve Diaphragm is divided into a few lobe as petal, such as Figure 16, shown in 17, by full wafer is circular or square segmentation becomes pintongs, thus Particularly simple breaching original is all that the thought using full wafer diaphragm is confined, completely without strengthening breather valve volume and becoming On the premise of Ben, achieve quickly and easily and the girth of diaphragm is extended, i.e. expand the requirement of air-flow exhalation area, subtract again simultaneously The shaft length (in Figure 17, straight dotted line 103 show simulation rotating shaft) that little each film lobe opens, by the arm of force and shaft length ratio Increase to more than 1, i.e. add torque ratio, thus can promote, with significance, the efficiency discharged of exhaling.

Extension as this utility model Design Thinking, it is clear that diaphragm can also be divided into more than 2 lobes or 2 lobes by us Other arbitrary graphic shapes being suitable for, such as Fig. 4--multiple example as 01--a12 shown in Figure 15 are more than 2 lobes/sheet or 2 lobes/sheet Connect or split many valves diaphragm schematic diagram (for convenience of statement, hereinafter described multiple lobes of diaphragm, multiple be referred to as Lobe, more than described 2 lobes 2 lobes contained above or 2 lobes), it is clear that, those skilled in the art may design it successively He is figure, therefore Fig. 4--and Figure 15 example shown should not be regarded as limiting the protection domain of this utility model patent right.

Based on above-mentioned thinking, this utility model provides a kind of many valves diaphragm breather valve, it is characterised in that breather valve Many lobes diaphragm construction that valve film is 2 lobes or 2 lobes form with upper diaphragm, diaphragm shapes can be designed to a lot of shape, it is clear that shape Shape has no idea to limit, and diaphragm is not limited to use silica gel material, is advisable with practicality, and each film lobe can connect into one Body, it is also possible to be separated into single valve, preferably 2 to 8 lobe disjunctor diaphragms, the more convenient installation of disjunctor diaphragm, more preferably 3 to 5, such as Figure 16, shown in 17, according to the mentality of designing of related industry designer, it is clear that film lobed shape and sheet number and whether disjunctor Should not constitute the restriction limiting patent right of the present utility model protection.

Further optimizing, two valve neighboring edges of diaphragm leave certain spacing, such as Figure 16, gap side seam shown in 17 102, preferably 1-10mm(millimeter), it is also possible to be full wafer diaphragm is directly cut off the shape into several lobes, i.e. two edges side seam away from From for 0, as shown in a06 in Fig. 9, in order to increase the girth of these difformity diaphragms so that air-flow can be from this neighboring edge Flow out, the most conscientiously increase air-flow exhalation area, it is considered to breather valve actual size limits, more preferably about 3mm.

Further, misplacing during for preventing diaphragm from installing, diaphragm arrangement anchor point or hole, location, such as Figure 16, in 17 101, anchor point can be 1 and the hole of more than 1 or the point of projection, and the shape of hole or point does not limit, and is preferably Circular.

Further, diaphragm can also accomplish the difference in thickness of each film lobe, and film lobe is the most thinning to edge from centre, or The thickness of the every lobe of person is uniform but each lobe thickness is different, to adapt to the difference of various breathing states in life.

For convenience of installing, as shown in figure 17,4 dotted line 103 mid portions of diaphragm can be thick, thickness about 0.5mm, In the middle of can also, near circular locating openings, about 3-5mm scope be thick.

According to diaphragm construction of the present utility model, such as Figure 18, shown in 19, further devise breather valve valve torr b2 or B1, and such as Figure 24, the valve gap c1 of the breather valve shown in 25, corresponding to the hole, location 101 of diaphragm, valve torr b2 has corresponding The location post holes 301 in the middle of press mold cylinder c2 in locating dowel 201, with described valve gap c1 is worked in coordination, and locating dowel 201 is 1 Or more than 1, shape is corresponding with hole, diaphragm location.

Further, for convenience described valve torr b1 is fastened in mask body with described valve gap c1, as shown in figure 19, Valve torr b1 edge is provided with buckle teeth 202, and buckle teeth 202 is buckle teeth groove 302 phase on conventional arc or triangle, with described valve gap c1 Coordinate.

Further, described valve torr b1, b2 surrounding are along being provided above with row's fine taper projection 203, with described valve gap The upper corresponding groove 303 of c1 matches, to facilitate the breather valve tapping being fixed in mask body.

As Figure 35 simulates shown in schematic diagram, diaphragm is placed at locating dowel corresponding to valve torr b2 201, buckles valve gap c1, Press mold cylinder c2 is just pressed in the middle of diaphragm, constitutes the simple and practical breather valve of this utility model.

This utility model can be based on this simple breather valve, as Figure 36 simulates shown in schematic diagram, also can make on valve gap c1 Changeable type moulding cover d1 designs, and is convenient for changing the dismountable type card buckle ring e1 design of filter material bottom valve torr b1.

Accompanying drawing explanation

Fig. 1 Fig. 3 is existing breather valve valve film schematic shapes.

Fig. 4 Figure 15 is part many valves diaphragm example of many valves breather valve of the present utility model.

Figure 16 is square four valve diaphragm a03 schematic diagrams.

Figure 17 is circular four valve diaphragm a02 schematic diagrams.

Figure 18 is the breather valve base using square pintongs film diaphragm a03, i.e. the side elevation view of valve torr b2.

Figure 19 is the breather valve base using circular four valve diaphragm a02, i.e. the side elevation view of valve torr b1.

Figure 20 is the breather valve base using circular four valve diaphragm a02, i.e. the underside view of valve torr b1.

Figure 21 is the side elevation view of the diaphragm frame b3 in the middle of circular four valve breather valve valve torr b1.

Figure 22 is the circular four valvular valve torr b1 cross sectional representation in A-A position in Figure 19.

Figure 23 is the diaphragm frame b3 of circular four valves in Figure 21 cross sectional representation in B-B position.

Figure 24 is the underside view of many valves breather valve valve gap c1.

Figure 25 is the side elevation view of many valves breather valve valve gap c1.

Figure 26 is the side elevation view of the press mold cylinder c2 in the middle of Figure 24 many valves breather valve valve gap c1.

Figure 27 is the cross sectional representation in C-C position of press mold cylinder c2 shown in Figure 26.

Figure 28 is the side elevation view of dismountable type card buckle ring e1 with arch-shaped supporting arch.

Figure 29 is the underside view of dismountable type card buckle ring e1 with arch-shaped supporting arch.

Figure 30 is the dismountable type card buckle ring e1 cross sectional representation in D-D position in Figure 29.

Figure 31 is the underside view of the moulding cover d1 can being fastened on valve gap.

Figure 32 is the side elevation view of the easy-to-draw pot moulding cover d1 can being fastened on valve gap.

Figure 33 is the underside view of the moulding cover d2 of a kind of click-on design scheme.

Figure 34 is the underside view of the moulding cover d3 of a kind of draw-in groove design.

When Figure 35 is that when many valves diaphragm described in the utility model is arranged on exhaled air flow in corresponding valve torr, diaphragm opens Simulation design sketch.

Figure 36 is that this utility model combination type many valves breather valve 4 overlaps combine analog effect schematic diagram.

Detailed description of the invention

Combine accompanying drawing below by detailed description of the invention this utility model to be described in further details, described in this example Concrete data, material and molding mode are only used to conveniently describe, and should not be regarded as limiting patent right of the present utility model limit System.

This example is using a02 circle pintongs diaphragm as shown in figure 17 as the explanation of detailed description of the invention of the present utility model Example, described diaphragm uses about 0.3mm gel silica membrane, and the width of the adjacent side seam of every lobe 102 is set to about about 2mm, and diaphragm can To use silica gel injection mo(u)lding or punching molding.

Further, diaphragm arrangement has 5 anchor points 101, the circular locating openings of i.e. middle 1 1.5mm diameter, side seam Each 1 the semicircle anchor point of 102 roots, diameter about 2mm, for convenience of installing, 4 dotted line 103 mid portions of diaphragm thicken extremely Thickness about 0.6mm.

With described diaphragm a02 for reference to making valve torr b1, as shown in figure 19, valve torr b1 intermediate row QI KOU is according to diaphragm The hole, location 101 of the locating dowel 201 and diaphragm a02 that the membrane support frame b3 of a02 specifications design, described diaphragm frame b3 are arranged is one by one Corresponding.

Edge width about the 1.5mm of 4 fan-shaped steam vents of the diaphragm frame b3 in the middle of described valve torr b1, empty as shown in figure 16 Line 105 is intended to position present situation diaphragm frame steam vent edge being described corresponding to diaphragm, i.e. diaphragm 1.5mm wider than steam vent edge is left Right.

Figure 23 is cross section at the B-B of diaphragm frame b3 shown in Figure 21, such as Figure 21, shown in 23, and diaphragm frame b3 sector air vent The supporting surface upwards at edge is slightly arcuate, i.e. in Figure 23 shown in arc 209.

Further, when described valve gap c1 is fastened in valve torr b1, as Figure 35 simulates state shown in schematic diagram, valve gap c1 Press mold cylinder c2 push down diaphragm a02, diaphragm can be made to have the stress of a slightly downward bending, to be maintained at non-expiration state Under still fit on the curved support face of diaphragm frame b3.

Further, c1 is valve gap as shown in figure 24, has press mold cylinder c2, press mold cylinder c2 to have 5 to determine in the middle of valve gap c1 Position post holes 301, the wherein cylindrical hole of middle 1 diameter 2mm, the semicylindrical opening of 4 2.3mm diameters of periphery, with valve torr in Figure 19 The locating dowel 201 of b1 just coordinates, to push down fixing diaphragm.

Further, such as Figure 26, shown in 27, press mold cylinder c2 cross section at C-C, Figure 27 during wherein Figure 27 is Figure 26 Shown in, the above stitching surface of described press mold cylinder c2 is curved, mutual with the mid portion cambered surface of the b3 of diaphragm frame shown in Figure 21 Mending, the cambered surface gradient of the press mold top 305 in press mold cylinder c2 is the most complementary with the gradient of the press mold following 205 of diaphragm frame b3, So that diaphragm has the stress fitted all the time.

The press mold following 205 of diaphragm frame b3 as shown in Figure 18,19,20,21, with diaphragm a02 shaft dotted line 103 in Figure 17 The most corresponding, described press mold following 205 is worked in coordination with the press mold top 305 of valve gap c1 in Figure 24, when described valve gap c1 and valve When torr b1 fastens, just push down at diaphragm rotating shaft 103 so that diaphragm keeps answering in a cambered surface being fitted in diaphragm frame b3 Power, i.e. dotted line 103 be exactly press mold following 205 overlap with press mold top 305 push down diaphragm open shaft axis.

As shown in figure 18, the described each edge of valve torr b2 is provided with a little vertebral body of row 203, as shown in figure 24, each limit of valve gap c1 Being provided with groove 303 in the middle of below edge, the little vertebral body 203 of described valve torr b2 is matched with described valve gap c1 edge groove 303, with More preferably it is fixed on mask body breather valve tapping.The size dimension of little vertebral body 203 and groove 303, to be suitable for being advisable, does not limits System.

The rotor shaft direction being perpendicular to diaphragm a02 as shown in figure 24 in valve gap c1 is provided with the spacing summit beam that diaphragm opens 306, the interior outage degree of the diaphragm frame b3 supporting surface of described summit beam 306 and the valve torr b1 upset radius less than diaphragm a02, this reality Example is designed as about 6mm.

Such as Figure 24, shown in 25, wherein Figure 24 is the inner face underside view of valve gap c1, and Figure 25 is that the upper face side of valve gap c1 regards Figure, valve gap c1 at least 1 face is provided with steam vent 307, and steam vent 307 can design various shape, and shape is unrestricted, with attractive in appearance, Mould demoulding is facilitated to be advisable.

Further, for convenience of changing breather valve or changing filtering material, such as Figure 20, shown in 22, wherein Figure 20 is figure The underside view of valve torr b1 shown in 19, Figure 22 is Figure 19 cross-sectional view at A-A, is provided with card in the bottom of described valve torr b1 Ring gear 208, the tooth of card ring gear 208 is convex to be enclosed for 1-3, and the present embodiment is 1 circle, and the bottom that the tooth of card ring gear 208 is convex can be such as figure Domatic inclined-plane inside shown in 22, it is also possible to be arcwall face or plane, can do certain fine setting in actual product designs.

Further, coordinate described card ring gear 208, be designed with single dismountable type card buckle ring e1, such as Figure 28,29,30 Shown in, card buckle ring e1 is provided with an arch-shaped supporting arch 501, outer arc face width 2.5mm of described supporting arch 501 along a diametric(al) Left and right, wider 1mm than intrados, conveniently pinching pull-out card buckle ring with finger when, finger does not slips, supporting arch 501 liang End is connected to card buckle teeth 502, and card buckle teeth 502 has the triangular ramp convex 1-3 of the buckle sound of baby talk, and this example is 2, wide about 5mm, One press gently bottom valve torr b1 at the edge of card buckle ring e1 during use, described card buckle teeth 502 can be made to be stuck in card ring gear 208 During tooth is convex, 1-2 tooth can be blocked neatly according to the elasticity of mask body or filtering material thickness and needs, if desired for taking out card Buckle ring e1, it is only necessary to pinch the middle part of described arch-shaped supporting arch 501 with finger, is pulled outwardly and can pull out described card Buckle ring e1, so, block, unload the most simple and convenient fast.

Wherein, Figure 28 is the side elevation view of card buckle ring e1, and Figure 29 is the underside view of card buckle ring e1, and Figure 30 is card buckle ring e1 Cross-sectional view in the D-D position of Figure 29.

Further, valve gap c1 as shown in figure 25, valve gap can be designed to solely as breather valve conventional on the market Vertical fixing moulding, it is split that the present embodiment is designed to valve gap c1 and cover d1, the valve gap that respectively can independently use With the cover that can design with changing modeling or logo, cover d1, d2, d3 as shown in Figure 31-34, so can carry as advertisement The custom design of body, naturally it is also possible to be designed to independent logo valve gap as tradition breather valve and be used alone.

Further, described valve gap c1 is arranged above with buckle or draw-in groove 308, with the buckle at the cover d1 back side in Figure 31 402 match, and can be fastened on valve gap c1 by cover d1.

Further, in the middle of cover, there is the design of a depressed part 401 as shown in figure 31, can be the circle in figure, it is possible to To be square or the design of other shapes, the present embodiment is circular design, and about degree of depth 3mm, this special depressed part 401 designs, A small magnet can be inlayed, so that described moulding cover pastes as a single refrigerator paste or other labels.Described The strip projected parts 407 of several projection can be designed in the wall limit of depressed part 401, about height of projection 0.1mm, fixing to facilitate Block Magnet and cling without binding agent.

The bottom surface, edge of described cover bottom surface with middle protruding bottom surface 409 the most in one plane, described crowning 409 coordinate with 309 concave faces of c1 in Figure 25, and the concave face 309 of the present embodiment is designed as heart, and shape can be arbitrarily devised, It is characterized in that the face of bossing 409 and valve gap edge surface are same plane, and have a depressed area at mid portion, depressed area is high Degree about 3mm, card be located in the inner side at described edge.

Wherein Figure 32 is the front side view of cover d1 described in Figure 31, and described cover moulding 403 is designed as a smaller part portion The pop can moulding divided, it is clear that other more moulding can also be designed to.

Certainly, the buckle of valve gap and cover can have a variety of design, such as such as the buckle 404 in Figure 33, or such as figure Draw-in groove 405,406 design in 34, experienced designer is to be readily implemented, but cover and valve gap are separately designed as this reality Executing example original creation, buckle, card groove shape and concave face shape should not constitute the restriction to this patent right.

Many valves chip that diaphragm, valve gap c1 described in the present embodiment may be constructed a most basic practicality with valve torr b1 is breathed Valve, further, it is possible to increase moulding cover d1, constitutes the breather valve of a shape changeable, further, it is also possible to increase One dismountable type card buckle ring e1, is configured to easily change the breather valve of filter, as shown in figure 36, for cover d1, valve gap The structural simulation figure of the combination type breather valve of the replaceable dismountable type that c1, valve torr b1 and card buckle ring e1 collectively constitute, it is intended to side Just illustrate the composition of the present embodiment, actual production can need according to actual look and the situation of logo does the excellent of appearance design Change and adjust, schematic diagram should not simulated with this and be constituted the restriction limited this utility model patent right.

This utility model can realize in many different forms, however it is not limited to the present embodiment says the mode described, it is provided that The purpose of above-mentioned detailed description of the invention is easy for understanding clearer to this utility model disclosure, is not intended to limit this The protection domain of utility model.

But, those skilled in the art may be aware that wherein one or more details describe and may be saved Slightly, or can also use other method, assembly or material, some embodiments do not describe or do not have in this example Have a detailed description.Additionally, feature described herein, enforcement or feature can also be arbitrarily to close in one or more example Suitable mode combines.

Claims (10)

1. a mask breather valve, is combined by valve torr, valve gap and valve film, it is characterised in that: described breather valve is tool Having the combination type breather valve of many valvular valves diaphragm, described valve film is 2 lobes or many valves diaphragm of 2 lobes above film lobe composition.

Mask breather valve the most according to claim 1, it is characterised in that each lobe of described valve film is conjoined structure, valve Diaphragm is 2 lobes or 2 lobes above film lobe, valve film at least 1 hole, location or point.

Mask breather valve the most according to claim 1, it is characterised in that described valve film is independent separate structure, valve film Sheet be 2 lobes or 2 lobes with upper diaphragm, valve film at least 1 hole, location or point.

Mask breather valve the most according to claim 1, it is characterised in that between the adjacent both sides of each lobe of described valve film are left Gap, gap width 0 to 10 millimeter.

Mask breather valve the most according to claim 1, it is characterised in that below described breather valve valve torr, there is a buckle In the dismountable type card buckle ring in valve backing portion, described valve torr is arranged below the card ring gear matched with card buckle ring, and described card ring gear is Domatic or cambered surface, is provided with convex 1 to 3 circle of tooth.

Mask breather valve the most according to claim 5, it is characterised in that have one arch-shaped in the middle of described dismountable type card buckle ring Supporting arch, described supporting arch two ends connect a card buckle teeth, and card buckle teeth is wide 3 to 8 millimeters, and the tooth of described card buckle teeth is convex 1 to 3 Individual.

Mask breather valve the most according to claim 1, it is characterised in that there is one individually above described breather valve valve gap The moulding cover fastened, valve gap inner face has the fixing press mold cylinder pushing down diaphragm, and described press mold cylinder has at least 1 locating dowel Hole, locating dowel hole number and position are the most corresponding with described diaphragm hole, location or point.

Mask breather valve the most according to claim 7, it is characterised in that the capping of described breather valve valve gap is provided with buckle Or latch or the card article in draw-in groove, with moulding cover cooperates fixing, described moulding cover lower surface zone line has one recessed The portion of falling into.

Mask breather valve the most according to claim 1, it is characterised in that the valve torr intermediate exhaust membrana oralis sheet of described breather valve The upper surface supporting surface of frame is cambered surface, and described diaphragm frame is provided with at least one diaphragm locating dowel, mutual with the hole, location of diaphragm Corresponding.

10. according to the mask breather valve described in claim 7 or 9, it is characterised in that the press mold in the middle of described breather valve valve gap Cylinder has press mold top, the most corresponding below with the press mold on the diaphragm frame in the middle of described breather valve valve torr, described press mold top Have certain slope or radian below with press mold, and the gradient or arc angles complementary.