CN2302812Y - Composite dust-proof mask - Google Patents
Composite dust-proof mask Download PDFInfo
- Publication number
- CN2302812Y CN2302812Y CN 97237376 CN97237376U CN2302812Y CN 2302812 Y CN2302812 Y CN 2302812Y CN 97237376 CN97237376 CN 97237376 CN 97237376 U CN97237376 U CN 97237376U CN 2302812 Y CN2302812 Y CN 2302812Y
- Authority
- CN
- China
- Prior art keywords
- leather hood
- cover body
- leather
- cover
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model provides a dustproof mask for preventing dust from entering into human body through mouth and nose. The dustproof mask is composed of an arc-shaped outer opening leather cover, a filtering layer, an air outlet valve, and a sponge sealing ring arranged the opening edge of the outer opening leather cover. The dustproof mask is characterized in that a cover body of the outer opening leather cover is provided with a plurality of through holes, and the inner edge of the outer opening leather covering is also provided with an arc-shaped inner opening leather cover; the filtering layer is clamped between the outer opening leather cover and the inner opening leather cover, and the air outlet valve is inserted in the middle position of the leather cover and is penetrated into cover bodies of the inner and the outer opening leather covers; the cover body of the inner opening leather cover is also provided with an air inlet valve, and the air inlet end of the air inlet valve is positioned on a position between the outer margin edge of the cover body of the inner opening leather cover and the filtering layer; the air outlet end of the air inlet valve is positioned on the inner margin edge of the cover body of the inner opening leather cover.
Description
The utility model relates to a kind of dust that prevents and enters the anti-dust respirator of respiratory tract.
Existing anti-dust respirator, modal is a kind of multilayer cotton cloth respirator, and its deficiency is dustproof weak effect, and the vapour lock rate is big, and gas permeability is bad.For overcoming these deficiencies, that Chinese patent CN2074192Y discloses is a kind of " nothing sprain anti-dust respirator ", is made of the freshwater mussel shape arc shell that is separated into suction muffler and inlet chamber, the filter chamber that filtering material is housed that is coated on sponge strip on the shell rim, is located at the unidirectional rubber valve block on the expiration chamber and is located at the air admission hole on the inlet chamber and be located in this air admission hole.Place the expiration chamber by the nostril during use, waste gas is washed the rubber valve block open and is discharged during expiration, and this rubber valve block is closed under the effect of suction force preventing that dust from entering nasal cavity when air-breathing, and required air is the oral cavity that enters the user after filtering through filter chamber again.The shortcoming of this mouth mask is the structure more complicated, and the air inlet area is little, and will exhale, air-breathing branch do not conform to custom by nose, the unaided occupation mode of mouth, is difficult to guarantee user's the smooth road of breathing.
The purpose of this utility model is that existing anti-dust respirator is improved, and provides a kind of vapour lock rate little, inhales and exhales light unobstructed combined type anti-dust respirator.
The anti-dust respirator of realizing the utility model purpose comprises arch form collar extension leather hood, filter course, air outlet valve and the sponge sealing ring that is located at collar extension leather hood mouth limit, offer some through holes on the cover body of described collar extension leather hood, inner edge at collar extension degree cover also is provided with an arch form internal orifice leather hood, described filter course is folded between collar extension leather hood and the internal orifice leather hood, air outlet valve is embedded at the medium position place of leather hood and in running through, collar extension leather hood cover body, on internal orifice leather hood cover body, also be provided with intake valve, the inlet end of intake valve is in the exterior rim of internal orifice leather hood cover body and the position between the filter course, and the outlet side is positioned on the inside rim of internal orifice leather hood cover body.
Be affixed on user's face during use by sponge sealing ring, during expiration, the valve block of air outlet valve is washed open under the effect of the air-flow that the user breathes out, the waste gas of exhalation is discharged outside the mouth mask smoothly, and the valve block of intake valve is intake valve at the pressure effect lower cover of the air-flow of breathing out at the port of export of intake valve and closes shape.When air-breathing, the effect lower cover of the suction force of the valve block of air outlet valve when air-breathing is air outlet valve at the entrance point of air outlet valve and closes shape; The corresponding unlatching of the valve block of inlet valve makes air enter from the through hole on the cover body of collar extension leather hood, supply user's suction through the inlet end of intake valve by the inner chamber that intake valve enters mouth mask again after filtering through filtering layer.
On the internal orifice leather hood cover body around the inlet end of intake valve, offer a cavity,, can make breathing more unimpeded to form large-area gas storage and admission space.
Resistance when driving valve for the sealing property that improves valve block with minimizing, valve block can adopt the stepped valve block of dried mushroom shape.
The utility model has the advantages that ventilative area is big, the vapour lock rate is little, does not keep off sight line, uses light happy; Filtering layer is replaceable, thereby service time is long, and cost is low.Being suitable for various dust work occasions uses.
Provide embodiment below in conjunction with accompanying drawing:
Fig. 1 structural representation of the present utility model
The B-B view of Fig. 2 Fig. 1
The D of Fig. 3 air outlet valve is to view
Fig. 4 intake valve valve body structure schematic diagram
The vertical view of Fig. 5 Fig. 4
The stepped valve block schematic diagram of Fig. 6 dried mushroom shape
As shown in Figure 1, arch form collar extension leather hood 1 can select for use the vinyon injection moulding to constitute, and through hole 2 can be made long strip type, various forms such as round.Internal orifice leather hood 3 can be manufactured with rubber and plastic, matches on the inner edge layer that places collar extension leather hood 1 with the collar extension leather hood.Sponge sealing ring 11 is bonded on the mouth limit of two mouthfuls of leather hoods.Air outlet valve 4 connects the place, centre position that is located at two mouthfuls of leather hoods, and is by the groove of offering on the valve body 5 that inside and outside two mouthfuls of leather hoods are affixed.Filter course 6 can select for use the one-tenth form drag dirt filtrate that does not have imitative dry goods to serve as, and is folded between inside and outside two mouthfuls of leather hoods.Intake valve 7 is fixed on the internal orifice leather hood with the form of groove embedding, and its inlet end 8 is in the outward flange of internal orifice leather hood and the position between the filter course 6.Fig. 4,5 has provided the structural representation of intake valve.The structure of air outlet valve also is similar to this (referring to Fig. 3).The same with existing mouth mask, can establish one and wear elastic cord 9, be fixed on the collar extension leather hood with a junction button 14.Around the inlet end 8 of the intake valve of internal orifice leather hood cover body, offer a cavity 10, enlarge gas storage and admission space with this.13 is the gas outlet of intake valve among the figure.
For the closed performance that improves valve block 12 with reduce to open resistance, valve block can be selected the stair-stepping form of dried mushroom shape as shown in Figure 6 for use.
Claims (3)
1, a kind of combined type anti-dust respirator, comprise arch form collar extension leather hood, filter course, air outlet valve and the sponge sealing ring that is located at collar extension leather hood mouth limit, it is characterized in that offering some through holes on the cover body of described collar extension leather hood, inner edge at the collar extension leather hood also is provided with an arch form internal orifice leather hood, described filter course is folded between collar extension leather hood and the internal orifice leather hood, air outlet valve is embedded at the medium position place of leather hood and in running through, collar extension leather hood cover body, on internal orifice leather hood cover body, also be provided with intake valve, the inlet end of intake valve is in the exterior rim of internal orifice leather hood cover body and the position between the filter course, and the outlet side is positioned on the inside rim of internal orifice leather hood cover body.
2, combined type anti-dust respirator as claimed in claim 1 is characterized in that offering a cavity on the internal orifice leather hood cover body of the inlet end of intake valve.
3, combined type anti-dust respirator as claimed in claim 1 or 2 is characterized in that described valve block into and out of air valve is the stepped valve block of a dried mushroom shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237376 CN2302812Y (en) | 1997-07-16 | 1997-07-16 | Composite dust-proof mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237376 CN2302812Y (en) | 1997-07-16 | 1997-07-16 | Composite dust-proof mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2302812Y true CN2302812Y (en) | 1999-01-06 |
Family
ID=33948036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97237376 Expired - Fee Related CN2302812Y (en) | 1997-07-16 | 1997-07-16 | Composite dust-proof mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2302812Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102178362A (en) * | 2011-05-06 | 2011-09-14 | 莱芜钢铁集团有限公司 | Dust protecting mask |
| CN102342602A (en) * | 2010-07-26 | 2012-02-08 | 3M创新有限公司 | Filtering face-piece respiratory having foam shaping layer |
| CN102421485A (en) * | 2009-04-28 | 2012-04-18 | 禹济政 | Cover body for mask |
| CN103079646A (en) * | 2010-08-19 | 2013-05-01 | 浦项工科大学校产学协力团 | Mask and a production method therefor |
| CN103599602A (en) * | 2013-11-28 | 2014-02-26 | 张秀霞 | Dustproof mask |
| CN103932426A (en) * | 2014-03-16 | 2014-07-23 | 泰州市兴东煤矿机械制造有限公司 | Anti-dust mask used in coal mine |
| CN103957999A (en) * | 2011-12-06 | 2014-07-30 | 3M创新有限公司 | Respirator having foam shaping layer with recessed regions surrounding air passageways |
| CN105407978A (en) * | 2013-10-17 | 2016-03-16 | 株式会社仁泰 | General-purpose synthetic resin mask using Velcro inserting-type filter exchange mode, and injection molding device and manufacturing method therefor |
| CN105617556A (en) * | 2014-10-30 | 2016-06-01 | 哈尔滨聚吉轩科技开发有限公司 | Mask with anti-haze and filtering functions |
| CN106039605A (en) * | 2016-05-31 | 2016-10-26 | 中科贝思达（厦门）环保科技股份有限公司 | Double-valve respirator |
| CN103957999B (en) * | 2011-12-06 | 2016-11-30 | 3M创新有限公司 | There is the respiratory organ of the foam forming layer including the sunk area around air duct |
| WO2018023889A1 (en) * | 2016-08-04 | 2018-02-08 | 东莞市利发爱尔空气净化系统有限公司 | Mask |
-
1997
- 1997-07-16 CN CN 97237376 patent/CN2302812Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102421485B (en) * | 2009-04-28 | 2013-10-09 | 禹济政 | Cover body for mask |
| CN102421485A (en) * | 2009-04-28 | 2012-04-18 | 禹济政 | Cover body for mask |
| CN102342602A (en) * | 2010-07-26 | 2012-02-08 | 3M创新有限公司 | Filtering face-piece respiratory having foam shaping layer |
| CN103079646B (en) * | 2010-08-19 | 2015-06-10 | 浦项工科大学校产学协力团 | Mask and a production method therefor |
| CN103079646A (en) * | 2010-08-19 | 2013-05-01 | 浦项工科大学校产学协力团 | Mask and a production method therefor |
| CN102178362A (en) * | 2011-05-06 | 2011-09-14 | 莱芜钢铁集团有限公司 | Dust protecting mask |
| CN103957999A (en) * | 2011-12-06 | 2014-07-30 | 3M创新有限公司 | Respirator having foam shaping layer with recessed regions surrounding air passageways |
| CN103957999B (en) * | 2011-12-06 | 2016-11-30 | 3M创新有限公司 | There is the respiratory organ of the foam forming layer including the sunk area around air duct |
| CN105407978A (en) * | 2013-10-17 | 2016-03-16 | 株式会社仁泰 | General-purpose synthetic resin mask using Velcro inserting-type filter exchange mode, and injection molding device and manufacturing method therefor |
| CN105407978B (en) * | 2013-10-17 | 2018-12-14 | 株式会社仁泰 | The embedded filter replacement general synthetic resin mask of thread gluing, its injection molding apparatus and production method |
| CN103599602A (en) * | 2013-11-28 | 2014-02-26 | 张秀霞 | Dustproof mask |
| CN103932426A (en) * | 2014-03-16 | 2014-07-23 | 泰州市兴东煤矿机械制造有限公司 | Anti-dust mask used in coal mine |
| CN105617556A (en) * | 2014-10-30 | 2016-06-01 | 哈尔滨聚吉轩科技开发有限公司 | Mask with anti-haze and filtering functions |
| CN106039605A (en) * | 2016-05-31 | 2016-10-26 | 中科贝思达（厦门）环保科技股份有限公司 | Double-valve respirator |
| CN106039605B (en) * | 2016-05-31 | 2019-08-02 | 中科贝思达（厦门）环保科技股份有限公司 | A kind of double valve mask |
| WO2018023889A1 (en) * | 2016-08-04 | 2018-02-08 | 东莞市利发爱尔空气净化系统有限公司 | Mask |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |