CN102371020B

CN102371020B - Replaceable forehead pad for positive pressure breathing mask

Info

Publication number: CN102371020B
Application number: CN201010259059.4A
Authority: CN
Inventors: 简志灿
Original assignee: Apex Medical Corp
Current assignee: Wellell Inc
Priority date: 2010-08-17
Filing date: 2010-08-17
Publication date: 2014-06-11
Anticipated expiration: 2030-08-17
Also published as: CN102371020A

Abstract

The invention discloses a replaceable forehead pad for a positive pressure breathing mask. The replaceable forehead pad comprises a substrate part, a support part and a buckling body; the substrate part is provided with two contact sheet bodies and a connection arm which is used for connecting two contact sheet bodies; the support part is provided with two support bodies and a plate arm which is connected with the two support bodies; a hollow area is formed among the support bodies, the plate arm and the contact sheet bodies and a hollow hole is formed on each support body to ensure that the support bodies can be flexibly compressed to be deformed; the buckling body is extended from the surfaces of two support bodies and the plate arm, and the long side of the buckling body is longer than the long side of the formed hollow area; the buckling body is provided with buckling parts; the buckling parts, and buckled parts of a mask device of the positive pressure breathing mask can be buckled and assembled; therefore, the replaceable forehead pad can be buckled conveniently and reduce the falling risk, and structural intensity and stress dispersing can be enhanced so as to reduce stress discomfort.

Description

Sun is pressed the replaceable volume pad of breathing mask

Technical field

The present invention relates to a kind of breathing mask, espespecially a kind of sun is pressed the replaceable volume mat structure design of the breathing mask of respiratory organ.

Background technology

It is that people is in bed that sleep-respiratory is ended disease (obstructive sleep apnea syndrome), there is repetitious subsiding in upper respiratory tract (comprising nasopharynx, oropharynx and throat), thereby block respiratory tract and cause breathing to shoal and become effort, more severe patient can cause air flue to stop up completely and cause and inhale less than air and suffocate.Be used at present treating sleep-respiratory and end one of the most effective mode of disease, to use continuous air flue sun to press respiratory organ (continuous positive airway pressure, CPAP), to make patient in the time of sleep, put on the breathing mask of a connection pump, pump is by means of the host computer control of an adjustable air-flow pressure, in order to continue that air is squeezed into air flue, produce a sun and press the continuous flow of (malleation), the upper respiratory tract that patient can be subsided originally in sleep remains unobstructed.

But, in order to maintain positive pressure condition, breathing mask need closely fit in around patient's mouth and nose, if but that breathing mask fits in the pressure of mouth and nose is too large, can cause discomfort, therefore, pressure can be disperseed by forehead and the mouth and nose structural design of shared around, be provided with volume pad and tool is flexibly contacted with patient's forehead.

As shown in Figures 1 and 2, volume pad 1a can be buckled on mask device 2a, volume pad 1a can distinguish a support connecting piece 11a and two contact 12a, contact 12a utilizes the 121a of salient point portion and support connecting piece 11a snapping, and support connecting piece 11a also utilizes the 111a of salient point portion and the mask device 2a snapping on it.But under actual use, utilize the direct snapping of salient point portion, because snapping area is little, the probability coming off is large; And oppressive force when use is easily concentrated to the salient point portion peripheral region of contact, cause oppressive force to concentrate and be urged to user skin, cause discomfort.

For another example Fig. 3, the volume pad 1b class of the second is strip, the several hollow out 11b of its inner directly formation, so as to making volume pad 1b have suitable elasticity, and have a class to be T-shaped buckle portion 12b in top projection, with mask device (not icon) snapping.But under actual use, because being directly forms hollow out in inside, its structural strength is poor, and oppressive force when use is difficult for disperseing, easily the direct skin build-up of pressure to user; And the snapping area of buckle portion is less, has and be easy to the anxiety that comes off.

For another example Fig. 4, the similar above-mentioned the second volume pad of structural design of the third volume pad 1c, the several hollow out 11c setting up and down of inner directly formation, and projection has class to be T-shaped buckle portion 12c.Under actual use, also there is the problem that above-mentioned the second volume pad is identical and exist.

Again as shown in Figures 5 and 6, the 4th kind of volume pad 1d has a substrate 11d, and two contact 12d that are connected in substrate 11d.On substrate 11d, projection has the 111d of snapping portion of tool slope structure, on snapping mask device (not icon).It is upper that contact 12d can be directly connected in substrate 11d, also can be as shown in Figure 7, and contact 12 ' d can be buckled on substrate by the mode of snapping.Under actual use, utilize the snapping portion of tool slope structure to be buckled in mask device, structural strength is poor and be difficult for snapping; And, the plates that substrate is continuous shape, and contact is two freestanding structures, the stress of compressing is difficult for disperseing in use, easily has discomfort.

So the improving of the above-mentioned defect of inventor's thoughts, concentratedly observes and study it, and propose a kind of reasonable in design and effectively improve the present invention of above-mentioned defect.

Summary of the invention

The invention provides a kind of sun and press the replaceable volume pad of breathing mask, its structural design is the risk that tool facilitates snapping and minimizing to come off; And, strengthen structural strength and stress dispersion to reduce compressing, promote more docile etc. the effectiveness of comfort and tool.

Above-mentioned for reaching, the invention provides a kind of sun and press the replaceable volume pad of breathing mask, can be buckled in this sun press breathing mask a mask device to buckle portion, this replaceable volume pad comprises substrate portion, support portion and snap fastener.

Above-mentioned substrate portion has the linking arm that two pairs of flexible contact lamellar bodies and of weighing-appliance bullet connect two contact lamellar bodies, two contact lamellar bodies respectively have on the contrary to first surface and second surface, first surface is in order to contact the forehead of user.

Support portion has two Body of pillar that extend from the second surface of two contact lamellar bodies, and extends to be connected in the plate arm of two Body of pillar from the ora terminalis of two Body of pillar.Two Body of pillar, plate arm contact with two and between lamellar body, form a vacancy section, and two Body of pillar are respectively formed with a hollow hole and make the distortion that two Body of pillar can elastic compression.Snap fastener extends from the surface of two Body of pillar and plate arm, and the long limit of snap fastener is more than or equal to the long limit that forms vacancy section.Snap fastener is formed with snapping portion, snapping portion in order to above-mentioned mask device to the buckle portion assembly that is interlockingly connected.

Or in different embodiment, above-mentioned snap fastener can be made as two, two relatively extend and form from the surface of two Body of pillar, and the long limit of snap fastener is more than or equal to the long limit that forms hollow hole.

In other words, the replaceable volume pad that the present invention also provides a kind of sun to press breathing mask, can be buckled in this sun press breathing mask a mask device to buckle portion, this replaceable volume pad, comprises:

Substrate portion, has the linking arm that the flexible contact lamellar bodies of the two pairs of weighing-appliance bullets and connect this two contacts lamellar body, this two contacts lamellar body respectively have on the contrary to first surface and second surface, this first surface is in order to contact the forehead of user;

Support portion, there are two Body of pillar that extend from the second surface of this two contacts lamellar body, and the ora terminalis of this two Body of pillar extends to be connected in the plate arm of this two Body of pillar certainly, this two Body of pillar, this plate arm two contact and between lamellar body, form a vacancy section with this, and this two Body of pillar is respectively formed with a hollow hole and makes the distortion that this two Body of pillar can elastic compression; And

Snap fastener, two relatively extend from the surface of this two Body of pillar, the long limit of this two snap fastener is more than or equal to the long limit that forms this two hollow hole, this two snap fastener is formed with snapping portion, this two snappings portion in order to above-mentioned mask device to the buckle portion assembly that is interlockingly connected.

Preferably, the first surface of two contact lamellar bodies is respectively concaved with at least one chase.

The benefit that the present invention has: by means of the structural design of hollow hole that forms vacancy section and Body of pillar, strengthen and disperse the structure of hollow out, structural strength and the stress dispersion of overall volume pad are better.And contact lamellar body can finely tune to reduce compressing up and down according to forehead surface undulation, and more strengthens and disperse contact area, promotes comfort with more docile.

Secondly, need be more than or equal to the long limit that forms vacancy section by snap fastener, or be more than or equal to the long limit that forms hollow hole, therefore can strengthen snapping area, be connected on mask device and reduce the risk coming off with Convenient button.

Separately, further on contact lamellar body, be provided with chase, can reduce the generation of slip, and there is the effectiveness of perspire.

Technology, method and effect of taking for reaching set object in order further to understand the present invention, refer to following about detailed description of the present invention and accompanying drawing, believe object of the present invention, feature and feature, when obtaining thus one deeply and concrete understanding, but accompanying drawing only provides reference and explanation use, is not used for the present invention to be limited.

Brief description of the drawings

Fig. 1 is the schematic perspective view that known sun is pressed breathing mask;

Fig. 2 is the schematic diagram of the volume pad in Fig. 1;

Fig. 3 is the schematic perspective view that known sun is pressed the second volume pad of breathing mask;

Fig. 4 is the schematic perspective view that known sun is pressed the third volume pad of breathing mask;

Fig. 5 is the schematic perspective view that known sun is pressed the 4th kind of volume pad of breathing mask;

Fig. 6 is another visual angle schematic perspective view that known sun is pressed the 4th kind of volume pad of breathing mask;

Fig. 7 is the schematic perspective view that known sun is pressed another contact of the 4th kind of volume pad of breathing mask;

Fig. 8 is the axonometric chart of replaceable volume pad the first embodiment of the present invention;

Fig. 9 is another visual angle axonometric chart of replaceable volume pad the first embodiment of the present invention;

Figure 10 is the plane graph of replaceable volume pad the first embodiment of the present invention;

Figure 11 is the three-dimensional exploded view that the replaceable volume pad of the present invention wants to be snapped in mask device;

Using state schematic diagram when Figure 12 is wish use of the present invention;

Figure 13 is the plane graph one of replaceable volume pad the first embodiment of the present invention;

Figure 14 is the plane graph two of replaceable volume pad the first embodiment of the present invention;

Figure 15 is the plane graph three of replaceable volume pad the first embodiment of the present invention;

Figure 16 is another three-dimensional exploded view that replaceable volume pad wants to be snapped in mask device;

Figure 17 is the axonometric chart of replaceable volume pad the second embodiment of the present invention;

Figure 18 is the plane graph of replaceable volume pad the second embodiment of the present invention;

Figure 19 is another visual angle axonometric chart of replaceable volume pad the second embodiment of the present invention;

Figure 20 is the three-dimensional combination figure that replaceable volume pad the second embodiment of the present invention is snapped in mask device.

[main element description of reference numerals]

[known]

1a volume pad

11a support connecting piece 111a salient point portion

12a contact 121a salient point portion

2a mask device

1b volume pad

11b hollow out 12b buckle portion

1c volume pad

11c hollow out 12c buckle portion

1d volume pad

11d substrate 111d snapping portion

12d, 12 ' d contact

[the present invention]

3 replaceable volume pads

31 substrate portions

311 contact lamellar body 3111 first surfaces

3112 second surface 312 linking arms

313 chases 314 are worn shrinkage pool thoroughly

315 " depression 316 " protruding grabbing

32 support portions

321,321 ', 321 " Body of pillar

3211 hollow holes 3212 are engraved hole

3213 chassis 3214 post arms

322 plate arm 323 contact projections

324 " positioning convex column

33,33 ', 33 " snap fastener

331,331 ', 331 " snapping portion

34 vacancy sections

4 mask devices

41,41 ', 41 " to buckle portion

411 catching grooves

412 ' box hole

413 " fasten catch

414 " locating slot

D1, d2, the long limit of d3, d4

H height

Detailed description of the invention

As shown in Fig. 8 to Figure 10, be the replaceable volume pad 3 that the present invention proposes, the member that it is formed in one, includes substrate portion 31, support portion 32 and snap fastener 33.

Substrate portion 31 has two contact lamellar bodies 311 and a linking arm 312, and contact lamellar body 311 is symmetrical and tool suitably plays flexible parts.312 of linking arms connect two contact lamellar bodies 311, with the continuous structural design that becomes one.Two contact lamellar bodies 311 respectively have on the contrary to first surface 3111 and second surface 3112, first surface 3111 is in order to be contacted with the forehead of user.Preferably, 3111 of the first surfaces of each contact lamellar body 311 can be arranged with at least one chase 313 (as Fig. 9), and it has the effectiveness of skidproof effect and suitable perspire when first surface 3111 is contacted with user.On the other hand, two contact lamellar bodies 311 are designed with respectively one gradually toward the angle tilting, to have the design at oblique angle; Also can make two contact lamellar bodies 311 be that parallel mode designs.

Support portion 32 has two Body of pillar 321 and a plate arm 322, a Body of pillar 321 separately segment distance ground extends and forms from the second surface 3112 of two contact lamellar bodies 311, plate arm 322 extends to be connected in two Body of pillar 321 from the ora terminalis of two Body of pillar 321, and with two Body of pillar 321 structure linking that becomes one.And two Body of pillar 321, plate arm 322 contact with two between lamellar body 311 and to form vacancy section 34, two Body of pillar 321 and respectively form a hollow hole 3211 and make the distortion of elastic compression effectively of two Body of pillar 321.On the other hand, Body of pillar 321 can respectively have a chassis 3213 of extending from second surface 3112 projections of contact lamellar body 311, and a post arm 3214 extending from 3213 surfaces, chassis, and 3211 of hollow holes are formed at post arm 3214.

Snap fastener 33 extends and forms from the surface of two Body of pillar 321 and plate arm 322, and the long limit d1 that wherein snap fastener 33 has need be more than or equal to the long limit d2 (as Figure 10) of (>=) formation vacancy section 34, so as to strengthening snapping area.Separately, snap fastener 33 is formed with snapping portion 331.On the other hand, preferably, the long limit d3 that forms two contact lamellar bodies 311 also can respectively be more than or equal to the long limit d2 that forms vacancy section 34, strengthens strengthening contact area and stress dispersion to have.

In the first embodiment of the present invention, the snapping groove of above-mentioned snapping portion 331 for setting to the concave from the outer shroud sidewall of snap fastener 33.

By above-mentioned, as shown in figure 11, replaceable volume pad 3 of the present invention can be buckled in sun and press on a mask device 4 of breathing mask, and the top of this mask device 4 is provided with buckle portion 41.The snapping portion 331 of above-mentioned snap fastener 33 uses and assembly that buckle portion 41 is interlockingly connected, and replaceable volume pad 3 is buckled on mask device 4.

In use, as shown in figure 12, and please refer to Fig. 8 and Fig. 9, the design of contact lamellar body 311 and linking arm 312, it has and can do trace adjustment up and down according to the surface undulation of user forehead, so as to reducing the skin of oppressing user, reduces discomfort.And, by means of the design of the hollow hole 3211 of vacancy section 34 and two Body of pillar 321, strengthen and dispersion engraved structure, make Body of pillar 321 and plate arm 322 be easy to strain, then the pressure of order compressing disperses, and with contact under lamellar body 311 collocation, strengthen and disperse contact surface, promote comfort level and can more be obedient on user forehead.On the other hand, by means of the chase 313 on the first surface 3111 of contact lamellar body 311, can in use make to contact lamellar body 311 anti-skidding, and can have suitable perspire under the permanent time is used, to lower the sense of discomfort of user.

In the present embodiment, above-mentioned is one to be provided with the plate body of catching groove 411 to 41 of buckle portions, for 331, the snapping portion of snapping groove can with the mutual assembly of catching groove 411, form the surface of stop catch plate lamellar body of wall of snapping groove, thereby be snapped in buckle portion 41.Be more than or equal to the long limit that forms vacancy section 34 by means of the long limit of snap fastener 33, so as to strengthening the snapping size of snapping portion 331, be then buckled on mask device 4 risk that so can facilitate snapping and minimizing to come off.

Separately, the alternate embodiment in first embodiment of the invention, as shown in figure 13, two Body of pillar 321 of support portion 32 more can be respectively equipped with engraves hole 3212, its size is less than the size of hollow hole 3211, engraves hole 3212 and is formed at post arm 3214, and be positioned at the position of adosculation lamellar body 311.By means of the design of engraving hole 3212, the elastic deformation force of the post arm 3214 of lift columns body 321 further, thus make pressure energy more disperse.

Again as shown in figure 14, in an embodiment of the present invention, the height h of two Body of pillar 321 ' of support portion 32 can do different variations, as shown in the present embodiment graphic, itself and the above embodiments are compared down, and the height h of Body of pillar 321 ' is shorter, therefore its height can design according to actual demand and replace, so as to be replaced as the replaceable volume pad 3 of differing heights according to the demand of user, the elasticity of choice for use is high.

In the alternate embodiment of first embodiment of the invention, the structural design of the snapping portion of replaceable volume pad can be done different variations, as shown in Figure 15 and Figure 16, the snapping portion 331 ' of snap fastener 33 ' can be multiple sequentially separately from the pin thread nail post of snap fastener 33 ' end face projection.On mask device 4 is the plate body that is provided with multiple box holes 412 ' that sequentially arrange separately to buckle portion 41 ', so as to making for the snapping portion 331 ' of multiple pin threads nail posts is snapped in corresponding box hole 412 ', to be snapped in buckle portion 41 '.In the present embodiment, for the end face that buckle portion 41 ' is contacted with to snap fastener 33 ' by the mode of face contact of plate demihull shape, then make the pressure of compressing be still the object that can reach dispersion, same identical with the above embodiments, and can promote comfort level and more be obedient to the first-class object of user forehead.

Shown in Figure 17 and Figure 18, in the second embodiment of the present invention, itself and the first embodiment difference are: snap fastener 33 " be to be made as two; and two relatively from two Body of pillar 321 " surface extend and form, form snap fastener 33 " long limit d1 be more than or equal to the long limit d4 that forms hollow hole 3211; so as to reaching the object being equal to above-mentioned the first embodiment; and by means of two snap fasteners 33 are set " with the mode of 2 snappings be buckled in mask device to buckle portion (not shown), there is more convenient assembly snapping.Snap fastener 33 " snapping portion 331 " for from snap fastener 33 " and the snapping groove that sets to the concave of outer shroud sidewall, above-mentioned mask device to buckle portion (not shown) for being provided with the plate body of catching groove.

In addition, more can be provided with two contact projections 323 in support portion 32, the long limit wall of self-forming hollow hole 3211 extends and forms towards substrate portion 31 directions respectively.When support portion 32 is stressed and while being out of shape, 323 of contact projections can be resisted against another long limit wall of hollow hole 3211, shorten the distance of withholding of support portion 32 when reducing with the assembly of mask device snapping, be beneficial to facilitate assembly snapping.As shown in Figure 17 and Figure 19, substrate portion 31 more can be provided with two and thoroughly wear shrinkage pool 314, form respectively two contact lamellar bodies 311, and can be further thoroughly perforating branches support part 32 chassis 3213 and be communicated with the hole 3212 of engraving of support portion 32, can increase the ventilative comfortableness while using by means of the design of thoroughly wearing shrinkage pool 314.

Secondly, the first surfaces 3111 of two contact lamellar bodies 311 more can respectively be formed with a depression 315 "; form depression 315 " wall be raised with protrudingly grab 316 "; thoroughly wear shrinkage pool 314 and depression 315 " be connected and thoroughly wear and protrudingly grab 316 "; by means of caving in 315 " and protrudingly grab 316 " design; and match with thoroughly wearing shrinkage pool 314, can prevent from contacting lamellar body 311 and as sucker, hold user forehead and cause the problem of sultry discomfort.That is depression 315 " grab 316 with protruding " there is function anti-skidding and heat radiation, thoroughly wear shrinkage pool 314 and be the function that can prevent contacting lamellar body 311 laminating absorption and there is heat radiation.

Again, as shown in Figures 17 to 19, the lateral margin of the plate arm 322 of support portion 32 can convex with positioning convex column 324 ", this positioning convex column 324 " be for when replaceable volume pad 3 of the present invention and mask device buckle portion is interlockingly connected to assembly time, positioning convex column 324 " can be when as assembly anchor point.As shown in figure 20, to buckle portion 41 " extend to form the fastening catch 413 of an annular corresponding to the position of support portion 32 outer rims ", fasten catch 413 " corresponding to positioning convex column 324 " position be arranged with form a locating slot 414 ".When replaceable volume pad 3 is assembled with mask device 4, the positioning convex column 324 of replaceable volume pad 3 " be fastened on the locating slot 414 of mask device 4 " in, one end of support portion 32 is coated and fixed on and fastens catch 413 " in.Cooperation while assembling so as to being beneficial to is with fixing.Moreover, fasten catch 413 " coated post arm 321 " position can be higher than other positions, so as to reaching preferably fixed effect.But, contact projection described in the present embodiment, thoroughly wear shrinkage pool, depression, protruding grab and positioning convex column etc. all also can further design in the volume pad of the first embodiment, then reach identical effect.

Comprehensive above-mentioned explanation, the present invention, by means of the structural design of the hollow hole of formation vacancy section and Body of pillar, strengthens and disperses the structure of hollow out, and structural strength and the stress dispersion of overall volume pad are better.And contact lamellar body can finely tune to reduce compressing up and down according to forehead surface undulation, and more strengthens and disperse contact area, promotes comfort with more docile.

Secondly, snap fastener need be more than or equal to the long limit that forms vacancy section, or is more than or equal to the long limit of hollow hole, therefore can strengthen snapping area, is connected on mask device and reduces the risk coming off with Convenient button.Moreover, can on contact lamellar body, be provided with chase, to reduce the generation of slip, and there is the effectiveness of perspire.

Above-mentioned disclosed accompanying drawing, explanation; be only embodiments of the invention; all those of ordinary skill in the art can do other all improvement according to above-mentioned explanation, and these change in the claim protection domain that still belongs to invention spirit of the present invention and define below.

Claims

1. sun is pressed the replaceable volume pad of breathing mask, can be buckled in this sun press breathing mask a mask device to buckle portion, this replaceable volume pad, is characterized in that, comprises:

Support portion, there are two Body of pillar that extend from the second surface of this two contacts lamellar body, and the ora terminalis of this two Body of pillar extends to be connected in the plate arm of this two Body of pillar certainly, this two Body of pillar, this plate arm two contact and between lamellar body, form a vacancy section with this, and this two Body of pillar is respectively formed with a hollow hole makes the distortion that this two Body of pillar can elastic compression, this support portion is more provided with two contact projections, and the long limit wall of this hollow hole of self-forming extends and forms towards this substrate portion direction respectively; And

Snap fastener, extend on the surface of this two Body of pillar and this plate arm certainly, the long limit of this snap fastener is more than or equal to the long limit that forms this vacancy section, this snap fastener is formed with snapping portion, this snapping portion in order to above-mentioned mask device to the buckle portion assembly that is interlockingly connected.

2. sun as claimed in claim 1 is pressed the replaceable volume pad of breathing mask, it is characterized in that, the first surface of this two contacts lamellar body is respectively concaved with at least one chase.

3. sun as claimed in claim 1 is pressed the replaceable volume pad of breathing mask, it is characterized in that, this two Body of pillar is more respectively equipped with the hole of engraving that size is less than this hollow hole, and this is engraved hole and is positioned at the closely position of this contact lamellar body.

4. sun as claimed in claim 3 is pressed the replaceable volume pad of breathing mask, it is characterized in that, this Body of pillar respectively has the chassis that the second surface from this contact lamellar body projection is extended, and a post arm extending from this chassis, and this hollow hole and this are engraved hole and be formed at this post arm.

5. sun as claimed in claim 4 is pressed the replaceable volume pad of breathing mask, it is characterized in that, this substrate portion be more provided with two be formed at respectively this two contacts lamellar body thoroughly wear shrinkage pool, this is thoroughly worn shrinkage pool and thoroughly wears the hole of engraving of the Er Yugai support portion, chassis of this support portion and be communicated with.

6. sun as claimed in claim 5 is pressed the replaceable volume pad of breathing mask, it is characterized in that, the first surface of this two contacts lamellar body is respectively formed with a depression, and the wall that forms this depression is raised with protruding grabbing, and this is thoroughly worn shrinkage pool and is connected with this depression and thoroughly wears this protruding grabbing.

7. sun as claimed in claim 1 is pressed the replaceable volume pad of breathing mask, it is characterized in that, this snapping portion is the snapping groove setting to the concave from the outer shroud sidewall of this snap fastener, and above-mentioned is one to be provided with the plate body of catching groove, this snapping groove and the mutual assembly of this catching groove to buckle portion.

8. sun is pressed the replaceable volume pad of breathing mask, can be buckled in this sun press breathing mask a mask device to buckle portion, this replaceable volume pad, is characterized in that, comprises:

Support portion, there are two Body of pillar that extend from the second surface of this two contacts lamellar body, and the ora terminalis of this two Body of pillar extends to be connected in the plate arm of this two Body of pillar certainly, this two Body of pillar, this plate arm two contact and between lamellar body, form a vacancy section with this, and this two Body of pillar is respectively formed with a hollow hole makes the distortion that this two Body of pillar can elastic compression, wherein, this support portion is more provided with two contact projections, and the long limit wall of this hollow hole of self-forming extends and forms towards this substrate portion direction respectively; And

9. sun as claimed in claim 8 is pressed the replaceable volume pad of breathing mask, it is characterized in that, the first surface of this two contacts lamellar body is respectively concaved with at least one chase.

10. sun as claimed in claim 8 is pressed the replaceable volume pad of breathing mask, it is characterized in that, this two Body of pillar is more respectively equipped with the hole of engraving that size is less than this hollow hole, and this is engraved hole and is positioned at the closely position of this contact lamellar body.

11. sun as claimed in claim 10 are pressed the replaceable volume pad of breathing mask, it is characterized in that, this Body of pillar respectively has the chassis that the second surface from this contact lamellar body projection is extended, and a post arm extending from this chassis, and this hollow hole and this are engraved hole and be formed at this post arm.

12. sun as claimed in claim 11 are pressed the replaceable volume pads of breathing masks, it is characterized in that, this substrate portion be more provided with two be formed at respectively this two contacts lamellar body thoroughly wear shrinkage pool, this is thoroughly worn shrinkage pool and thoroughly wears the hole of engraving of the Er Yugai support portion, chassis of this support portion and be communicated with.

13. sun as claimed in claim 12 are pressed the replaceable volume pad of breathing mask, it is characterized in that, the first surface of this two contacts lamellar body is respectively formed with a depression, and the wall that forms this depression is raised with protruding grabbing, and this is thoroughly worn shrinkage pool and is connected with this depression and thoroughly wears this protruding grabbing.

14. sun as claimed in claim 8 are pressed the replaceable volume pad of breathing mask, it is characterized in that, this snapping portion is the snapping groove setting to the concave from the outer shroud sidewall of this snap fastener, and above-mentioned is the plate body that is provided with catching groove, this snapping groove and the mutual assembly of this catching groove to buckle portion.

15. sun as claimed in claim 14 are pressed the replaceable volume pad of breathing mask, it is characterized in that, this extends to form a fastening catch to buckle portion corresponding to the position of this support portion outer rim, the lateral margin of the plate arm of this support portion convexes with a positioning convex column, this fastening catch is arranged with and forms a locating slot corresponding to the position of positioning convex column, this positioning convex column is fastened on this locating slot, and one end of this support portion is coated and fixed on this fastening catch.