CN205215979U - A one -way expiratory valve and gauze mask for gauze mask - Google Patents
A one -way expiratory valve and gauze mask for gauze mask Download PDFInfo
- Publication number
- CN205215979U CN205215979U CN201520864422.3U CN201520864422U CN205215979U CN 205215979 U CN205215979 U CN 205215979U CN 201520864422 U CN201520864422 U CN 201520864422U CN 205215979 U CN205215979 U CN 205215979U
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- Prior art keywords
- valve
- mouth mask
- described valve
- valve seat
- valve gap
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 241000587161 Gomphocarpus Species 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model provides an one -way expiratory valve and gauze mask for gauze mask, including valve gap, disk seat and centre gripping at between the two valve block, be equipped with the gas outlet on the valve gap, be equipped with the air vent on the disk seat, the valve block has a plane portion that is used for closing the air vent, be formed with with plane portion in one side with valve block looks opposition of disk seat corresponding protruding stupefied, marginal portion and this protruding stupefied formation line contact of plane portion. The lug that towards disk seat place one side extend is formed in the bottom of gas outlet on the valve gap, the gauze mask face guard with the valve gap department of matching form one with the corresponding concave part of this lug, the valve gap matches the realization through lug and this concave part and is connected with the gauze mask face guard. This kind of one -way expiratory valve can improve the valve block can reduce the degree of difficulty of opening of valve block again to the leakproofness of disk seat, can also improve the steadiness of being connected of valve gap and gauze mask face guard simultaneously.
Description
Technical field
The utility model relates to a kind of one-way breather valve for mouth mask and mouth mask.
Background technology
At present, the pollution problem of urban air is more and more severe, especially PM2.5 content overproof, has a strong impact on the health of people's trip.Suck too much harmful substance to reduce, dressing mouth mask is a kind of common precautionary measures.The gas of breathing out to make user is discharged convenient, existing mouth mask is generally with one-way breather valve, and this one-way breather valve is closed when user's air-breathing, opens when user exhales, while the preventing dust haze effect ensureing anti-dust respirator, also significantly improve the smooth and easy type that wearer is breathed.But also there is following defect in the existing mouth mask on the market with outlet valve: one, valve block and valve seat sealing and coordinate dumb, during air-breathing, valve block is not high to the sealing of valve seat, and during expiration, valve block is not easy to be opened; Two, the connection of outlet valve and mouth mask face shield is insecure and sealing is not high, and Long-Time Service easily leaks gas, thus affects the performance that mouth mask intercepts harmful substance.
Utility model content
Main purpose of the present utility model is that providing a kind of can improve valve block can reduce the again valve block one-way breather valve for mouth mask opening difficulty and mouth mask to the sealing of valve seat.
The utility model proposes a kind of one-way breather valve for mouth mask, the valve block comprising valve gap, valve seat and be clamped between the two, described valve gap is provided with gas outlet, described valve seat is provided with passage, described valve block has the planar portions of closing described passage, be formed corresponding convex stupefied with described planar portions in the side opposite with described valve block of described valve seat, the marginal portion of described planar portions and this convex stupefied formation linear contact lay.
Adopt this structure, during air-breathing, under the pressure effect that extraneous gas produces, the major part of described planar portions is fitted on the passage of described valve seat, the only marginal portion of planar portions and convex stupefied formation linear contact lay, is conducive to improving valve block to the sealing effectiveness of passage; During expiration, only need a less active force that planar portions can be made stupefiedly to separate with convex, and then valve block more easily opened, then user breathe out gas flows through passage successively, gas outlet drains into outside.
Preferably, a through hole arranged between two parties is provided with in the side opposite with described valve block of described valve seat, be formed with the nail head arranged between two parties in the side opposite with described valve seat of described valve block, described valve block passes described through hole by this nail head and is connected on this through hole and realizes being connected with described valve seat.
Adopt this structure, described valve block passes described through hole by this nail head and is connected on this through hole and realizes being connected with described valve seat, the mounting structure of valve block and valve seat can be simplified, simplify the installation process of valve block, the installation steadiness of valve block can also be improved simultaneously.
Preferably, described valve seat is arranged with multiple pore structure between described convex stupefied and through hole, is formed with the support column for supporting described planar portions between adjacent holes structure, forms described passage by this multiple pore structure.
Preferably, be formed in the bottom inside of described valve gap and arrange and the valve gap snap ring given prominence to towards radially inner side along its circumference, be formed in the bottom outside of described valve seat and arrange and towards the recessed valve seat draw-in groove of radially inner side along its circumference, described valve gap is realized by described valve gap snap ring and the clamping of described valve seat draw-in groove phase and the interference fit of described valve seat.
Adopt this structure, described valve gap realizes the interference fit with described valve seat by described valve gap snap ring and the clamping of described valve seat draw-in groove phase, and what valve gap can be made to coordinate with valve seat is more firm, is conducive to the overall structure stability improving one-way breather valve.
Preferably, described valve gap forms a projection extended towards described valve seat side in the bottom of described gas outlet, locate formation one recess corresponding with this projection matching with described valve gap of described mouth mask face shield, described valve gap is matched by described projection and this recess and realizes being connected with described mouth mask face shield.
Adopt this structure, under one-way breather valve is in installment state, projection matches with the recess on mouth mask face shield and valve gap can be fixed on more firmly on mouth mask face shield, the gas outlet of one-way breather valve is arranged towards mouth mask front lower place, the gas that such user breathes out then is discharged towards front lower place, and give vent to anger gas circuit and the air-breathing gas circuit avoiding being formed when producing water smoke and wear mouth mask on the glasses that user wears form short circuit.
Preferably, a bonnet flange is formed along its circumference in the bottom outside of described valve gap, a seat flange is formed along its circumference in the bottom outside of described valve seat, described mouth mask face shield offers the opening installing one-way breather valve, and the wall portion of this opening is clamped between described bonnet flange and seat flange.
Adopt this structure, the contact area of valve gap, valve seat and mouth mask face shield can be increased, and then improve the installation steadiness of one-way breather valve.
Preferably, described valve block is made up of silica gel.
The utility model also proposed a kind of mouth mask, and described mouth mask comprises mouth mask face shield, described mouth mask face shield is provided with aforementioned in arbitrary described one-way breather valve.
Preferably, described valve gap forms a projection extended towards described valve seat side in the bottom of described gas outlet, described mouth mask face shield with the described valve gap place of matching offer one with the corresponding recess of this projection, described valve gap is matched by described projection and this recess and realizes being connected with described mouth mask face shield.
Preferably, a bonnet flange is formed along its circumference in the bottom outside of described valve gap, a seat flange is formed along its circumference in the bottom outside of described valve seat, described mouth mask face shield offers the opening installing one-way breather valve, and the wall portion of this opening is clamped between described bonnet flange and seat flange.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of one-way breather valve;
Fig. 2 is the top view of the valve seat of one-way breather valve;
Fig. 3 is the top view of the valve gap of one-way breather valve;
Fig. 4 is the oblique view of the valve gap of one-way breather valve;
Fig. 5 is the partial schematic diagram of the mouth mask face shield for configuring one-way breather valve.
Detailed description of the invention
Referring to Fig. 1 ~ Fig. 5, the one-way breather valve for mouth mask described in the utility model and mouth mask are described in detail.
As shown in Figure 1, the one-way breather valve for mouth mask mainly comprises the valve gap 1, valve block 2 and the valve seat 3 that fit together successively from top to bottom.As illustrated in fig. 1 and 2, the peviform of valve seat 3 entirety in back-off, be formed in the side opposite with valve block 2 at the top of this valve seat 3 along this valve seat 3 top circumference arrange convex stupefied 31, a through hole 33 arranged between two parties is provided with at the top of valve seat 3, between convex stupefied 31 and through hole 33, be arranged with multiple pore structure at the top of valve seat 3, form passage 35 by this multiple pore structure.Form by the coupling part between adjacent holes structure the support column 34 extended along valve seat 3 radial direction, this support column 34 is for supporting the planar portions 22 of valve block 2.Be formed with valve seat draw-in groove 32 at the side-wall outer side of valve seat 3, this valve seat draw-in groove 32 along valve seat wall circumference arrange and recessed towards its radially inner side.A seat flange 36 is formed along its circumference in the bottom outside of valve seat 3.
As shown in Figure 1, valve block 2 is made up of silica gel and is similar in umbrella on the whole, and the nail head 21 that it has a planar portions 22 and is configured between two parties in this planar portions 22, this nail head 21 is arranged on planar portions 22 side opposite with valve seat 3.Valve block 2 passes through hole 33 mainly through nail head 21 and is connected on this through hole 33 and realizes being connected with valve seat 3.During suction condition, under extraneous gas effect, planar portions 22 is fitted in the top of valve seat 3 and covers passage 35, and now convex stupefied 31 on the marginal portion of planar portions 22 and valve seat 3 forms linear contact lay; During expiration state, the gas effect lower flat portion 22 of breathing out user is separated with convex stupefied 31, and form open mode, then the gas that user breathes out drains into outside via passage 35, gas outlet 11.
As shown in Fig. 1,3 ~ 4, valve gap 1 is the overall peviform in back-off also, in the top and sidewall thereof of this valve gap 1, symmetry offers multiple gas outlet 11, forms linking arm 11a by the coupling part between adjacent gas outlet 11, and this linking arm 11a is mainly in order to ensure the bulk strength of valve gap 1.Valve gap 1 forms a projection 12 extended towards valve seat 3 side in the bottom of gas outlet 11, and this projection 12 is positioned at the centre of aforementioned multiple gas outlet 11.Be formed inside the sidewall bottom of valve gap 1 and arrange and the valve gap snap ring 13 given prominence to towards radially inner side along its circumference.Also form one in the bottom outside of valve gap 1 and bonnet flange 14 is set along its circumference.
As shown in Figure 5, mouth mask face shield 4 is offered one in order to install the opening 41 of one-way breather valve, be also provided with a recess 42 corresponding with aforementioned projection 12 in the wall portion of this opening 41.When one-way breather valve installed by mouth mask face shield 4, valve seat 3 is arranged on opening 41 from the inner side of mouth mask face shield 4 and the main part of valve seat 3 is stretched out from opening 41; Then the through hole 33 valve block 2 being configured in valve seat 3 make the marginal portion of its planar portions 22 be fitted on convex stupefied 31 of valve seat 3; Be fastened on valve seat 3 at opening 41 by valve gap 1 from the arranged outside of mouth mask face shield 4 by valve gap 1, valve gap snap ring 13 is with valve seat draw-in groove 32 phase clamping and form interference fit.Now, the wall portion being formed in the opening 41 on mouth mask face shield 4 is clamped between bonnet flange 14 and seat flange 36, projection 12 on valve gap 1 and recess 42 tabling on mouth mask face shield 4 make valve gap 1 and mouth mask face shield 4 link together, and then improve the connectivity robustness of valve gap 1 and mouth mask face shield 4.
One-way breather valve for mouth mask described in the utility model, the planar portions 22 of valve block 2 and this is made convex stupefied 31 to form linear contact lay by forming convex stupefied 31 on valve seat 3, adopt this way of contact, during air-breathing, under the pressure effect that extraneous gas produces, the major part of planar portions 22 is fitted on the passage 35 of valve seat 3, and only the marginal portion and convex stupefied 31 of planar portions 22 forms linear contact lay, is conducive to the sealing effectiveness improving valve block 2 pairs of passages 35; During expiration, only need a less active force that planar portions 22 can be made to open with convex stupefied 31 points, and then valve block 2 is more easily opened, then user breathes out, and gas flows through passage 35 successively, gas outlet 11 drains into outside.
In addition, owing to forming projection 12 in the bottom of valve gap 1, under one-way breather valve is in installment state, projection 12 matches with the recess 42 on mouth mask face shield 4 and can be fixed on mouth mask face shield 4 more firmly by valve gap 1, the gas outlet 11 of one-way breather valve is arranged towards mouth mask front lower place, the gas that such user breathes out then is discharged towards front lower place, and give vent to anger gas circuit and the air-breathing gas circuit avoiding being formed when producing water smoke and wear mouth mask on the glasses that user wears form short circuit.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. the one-way breather valve for mouth mask, the valve block (2) comprising valve gap (1), valve seat (3) and be clamped between the two, described valve gap (1) is provided with gas outlet (11), described valve seat (3) is provided with passage (35), it is characterized in that
Described valve block (2) has the planar portions (22) of closing described passage (35), be formed convex stupefied (31) corresponding with described planar portions (22) in the side opposite with described valve block (2) of described valve seat (3), the marginal portion of described planar portions (22) and this convex stupefied (31) form linear contact lay.
2. the one-way breather valve for mouth mask according to claim 1, it is characterized in that, a through hole (33) arranged between two parties is provided with in the side opposite with described valve block (2) of described valve seat (3), be formed with the nail head (21) arranged between two parties in the side opposite with described valve seat (3) of described valve block (2), described valve block (2) is connected to the upper realization of this through hole (33) by this nail head (21) is connected with described valve seat (3) through described through hole (33).
3. the one-way breather valve for mouth mask according to claim 2, it is characterized in that, described valve seat (3) is arranged with multiple pore structure between described convex stupefied (31) and through hole (33), being formed with the support column (34) for supporting described planar portions (22) between adjacent holes structure, forming described passage (35) by this multiple pore structure.
4. the one-way breather valve for mouth mask according to claim 1, it is characterized in that, be formed in the bottom inside of described valve gap (1) and arrange and the valve gap snap ring (13) given prominence to towards radially inner side along its circumference, be formed in the bottom outside of described valve seat (3) and arrange and towards the recessed valve seat draw-in groove (32) of radially inner side along its circumference, described valve gap (1) is realized by described valve gap snap ring (13) and the phase clamping of described valve seat draw-in groove (32) and the interference fit of described valve seat (3).
5. the one-way breather valve for mouth mask according to claim 1, it is characterized in that, described valve gap (1) forms a projection (12) extended towards described valve seat (3) side in the bottom of described gas outlet (11), locate formation one recess (42) corresponding with this projection (12) matching with described valve gap (1) of described mouth mask face shield (4), described valve gap (1) is matched by described projection (12) and this recess (42) and realizes being connected with described mouth mask face shield (4).
6. the one-way breather valve for mouth mask according to claim 1, it is characterized in that, a bonnet flange (14) is formed along its circumference in the bottom outside of described valve gap (1), a seat flange (36) is formed along its circumference in the bottom outside of described valve seat (3), described mouth mask face shield (4) offers the opening (41) installing one-way breather valve, and the wall portion of this opening (41) is clamped between described bonnet flange (14) and seat flange (36).
7. the one-way breather valve for mouth mask according to claim 1, is characterized in that, described valve block (2) is made up of silica gel.
8. a mouth mask, described mouth mask comprises mouth mask face shield, it is characterized in that, described mouth mask face shield (4) is provided with arbitrary described one-way breather valve in claim 1 ~ 7.
9. mouth mask according to claim 8, it is characterized in that, described valve gap (1) forms a projection (12) extended towards described valve seat (3) side in the bottom of described gas outlet (11), described mouth mask face shield (4) with described valve gap (1) place of matching offer one with the corresponding recess (42) of this projection (12), described valve gap (1) is matched by described projection (12) and this recess (42) and realizes being connected with described mouth mask face shield (4).
10. mouth mask according to claim 8, it is characterized in that, a bonnet flange (14) is formed along its circumference in the bottom outside of described valve gap (1), a seat flange (36) is formed along its circumference in the bottom outside of described valve seat (3), described mouth mask face shield (4) offers the opening (41) installing one-way breather valve, and the wall portion of this opening (41) is clamped between described bonnet flange (14) and seat flange (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864422.3U CN205215979U (en) | 2015-11-02 | 2015-11-02 | A one -way expiratory valve and gauze mask for gauze mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864422.3U CN205215979U (en) | 2015-11-02 | 2015-11-02 | A one -way expiratory valve and gauze mask for gauze mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205215979U true CN205215979U (en) | 2016-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520864422.3U Expired - Fee Related CN205215979U (en) | 2015-11-02 | 2015-11-02 | A one -way expiratory valve and gauze mask for gauze mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205215979U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110533A (en) * | 2016-08-18 | 2016-11-16 | 中科贝思达（厦门）环保科技股份有限公司 | A kind of exquisite check valve for face shield |
| CN107638639A (en) * | 2017-11-02 | 2018-01-30 | 苏州世康防护用品有限公司 | A kind of outlet valve |
| CN108057188A (en) * | 2017-12-29 | 2018-05-22 | 上海宝亚安全装备股份有限公司 | A kind of outlet valve of adjustable Opening pressure |
| WO2019212404A1 (en) * | 2018-05-02 | 2019-11-07 | Innosparks Pte. Ltd. | Multi-flap valve for a respiratory device |
| CN111346311A (en) * | 2020-03-12 | 2020-06-30 | 苏州乐众能源科技有限公司 | A two-way breather valve and gauze mask for gauze mask |
| US11052208B2 (en) | 2016-05-25 | 2021-07-06 | 3M Innovative Properties Company | Exhaust valve shroud for a personal protection respiratory device |
-
2015
- 2015-11-02 CN CN201520864422.3U patent/CN205215979U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11052208B2 (en) | 2016-05-25 | 2021-07-06 | 3M Innovative Properties Company | Exhaust valve shroud for a personal protection respiratory device |
| CN106110533A (en) * | 2016-08-18 | 2016-11-16 | 中科贝思达（厦门）环保科技股份有限公司 | A kind of exquisite check valve for face shield |
| CN106110533B (en) * | 2016-08-18 | 2021-10-29 | 中科贝思达（厦门）环保科技股份有限公司 | Exquisite one-way valve for face mask |
| CN107638639A (en) * | 2017-11-02 | 2018-01-30 | 苏州世康防护用品有限公司 | A kind of outlet valve |
| CN108057188A (en) * | 2017-12-29 | 2018-05-22 | 上海宝亚安全装备股份有限公司 | A kind of outlet valve of adjustable Opening pressure |
| WO2019212404A1 (en) * | 2018-05-02 | 2019-11-07 | Innosparks Pte. Ltd. | Multi-flap valve for a respiratory device |
| CN111346311A (en) * | 2020-03-12 | 2020-06-30 | 苏州乐众能源科技有限公司 | A two-way breather valve and gauze mask for gauze mask |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 |