CN105661691A - Novel mask - Google Patents
Novel mask Download PDFInfo
- Publication number
- CN105661691A CN105661691A CN201610124181.8A CN201610124181A CN105661691A CN 105661691 A CN105661691 A CN 105661691A CN 201610124181 A CN201610124181 A CN 201610124181A CN 105661691 A CN105661691 A CN 105661691A
- Authority
- CN
- China
- Prior art keywords
- cover body
- land
- interior
- clamping piece
- diaphragm
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
- A41D13/1153—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a hood
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/14—Air permeable, i.e. capable of being penetrated by gases
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/02—Valves
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2400/00—Functions or special features of garments
- A41D2400/70—Removability
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a novel mask which comprises a mask body.A breather valve is installed on the mask body.The two ends of the mask body are connected with ear shields which can shield the ears respectively.The middle of the mask body is supported outwards to form a gas buffer area.An exhaust opening is formed in the lower portion of the mask body.An installation base comprises an inner clamping plate and an inner annular table.The inner annular table is arranged inside the exhaust opening in a sleeved mode from the inner side of the mask body and penetrates out.A guiding column is arranged in the center of an inner through hole.A plurality of connecting rods are arranged between the outer surface of the guiding column and the inner surface of the inner through hole and annularly distributed on the outer surface of the guiding column to support and fix the guiding column.An air outlet channel is formed between every two adjacent connecting rods.A through hole is formed in the middle of a membrane, the guiding column is sleeved with the membrane, and the membrane can slide along the guiding column so as to control on-off of the air outlet channel.A valve cover comprises an outer clamping plate and an outer annular table.A sealing plate is arranged on the top of the outer annular table.An air outlet is formed in the side portion of the outer annular table.The outer clamping plate is screwed to the inner annular table so that the outer clamping plate and the inner clamping plate clamp the mask body.
Description
Technical field
The present invention relates to a kind of mouth mask, particularly relate to a kind of gauze mask.
Background technology
Winter temperature is lower, dust in dry air and air, bacterium are more, if breathing this air long-time easily to cause weak patient and suffer from patient infection's respiratory tract disease of chronic bronchitis, be prevention respiratory tract disease, this type of crowd can wear mouth mask when open air. mouth mask is worn over the air that admission port nose can be filtered in nose and mouth, to reach the gas of blocking harmful, smell, spittle turnover wearer's mouth nose, mouth mask is made mainly with gauze, there is special PM2.5 mouth mask at present, but although this kind of mouth mask can effectively filter dust and bacterium, but it is generally single use, just need to change after using for some time, and this kind of mouth mask is for the crowd needing wearing spectacles, it is not suitable for, owing to air temperature is lower, and the temperature of the air breathed out is higher, owing to wearing mouth mask, the gas breathed out can not be discharged in time, portion gas is overflowed from mouth mask top, the gas that temperature is higher runs into the lower eyeglass liquefaction of temperature, lens surface is made to produce one layer of mist, sight line is obstructed, the normal walking of impact. current mouth mask is difficult to head it off, causes the crowd of wearing spectacles cannot use mouth mask, finally causes groups of people's easy infection respiratory tract disease.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of gauze mask.
For solving the problems of the technologies described above, the present invention comprises the cover body being made up of multilayer pure cotton knitting face fabric, described cover body is provided with vacuum pressure valves, described vacuum pressure valves comprises valve bonnet, diaphragm and mount pad, it is characterized in that the two ends of described cover body are connected to the left earmuff and right earcup that can cover on ear, being connected with elastic tape between described left earmuff and right earcup, outwards prop up and form gas buffer region in the middle part of described cover body, venting port has been offered in the bottom of the corresponding gas buffer region of described cover body, described mount pad comprises rounded and is provided with the interior clamping piece of inner via hole in the middle part of it, the external diameter of described interior clamping piece is greater than the diameter of venting port, described interior clamping piece outside surface is provided with the interior land cylindrically of overhanging setting around inner via hole, described interior land is inserted in venting port inside cover body and is passed, the center of described inner via hole is provided with guidepost, multiple union lever it is provided with between the outside surface of described guidepost and the internal surface of inner via hole, described multiple union lever be periphery carry out guidepost supporting at guidepost outside surface fixing, outlet passageway is formed between adjacent union lever, it is provided with communicating pores in the middle part of described diaphragm and it is sleeved on guidepost and can slide along guidepost thus control the break-make of outlet passageway, described valve bonnet comprises rounded and is provided with the outer clamping piece of outer through hole in the middle part of it, described outer clamping piece is provided with the outer land cylindrically of overhanging setting around outer through hole, the top of described outer land is fixed with the shrouding that outer through hole is closed, and the sidepiece of described outer land has offered air outlet, the outside surface of described interior land is provided with outside screw, and the internal surface of the outer through hole of described outer clamping piece is provided with the internal thread that the outside screw with interior land matches, and described outer clamping piece spiral shell is contained in interior land cover body is clamped by outer clamping piece and interior clamping piece.
On described cover body, corresponding mouth nose place is provided with the support outwards will propped up in the middle part of cover body removably.
The outside of described cover body is provided with along cover body upper and lower to the encapsulation sheet arranged, the both sides in described encapsulation leaf length direction sew respectively on cover body, make between encapsulation sheet and cover body, to form the slotting dress seam that can insert dress support, the upper end in described encapsulation leaf length direction and cover body are sewed up, the lower end of described cover body in encapsulation leaf length direction is provided with anti-channeling sheet, both sides and the lower edge of described anti-channeling sheet all sew on cover body, and the upper edge of described anti-channeling sheet is higher than the lower edge of encapsulation sheet.
PP silk floss it is filled with respectively in described left earmuff and right earcup.
The thickness of described outer clamping piece is less than the axial length of interior land, and the sidepiece uniform ring of described outer land is furnished with multiple rectangular air outlet, and the bottom that the lower edge of described air outlet is close to outer land is arranged, and the upper edge of air outlet is higher than the upper surface of interior land.
The upper end of described guidepost is screwed with for the positioning head that diaphragm is spacing.
The outside surface of described interior clamping piece is provided with many compression bars, and in the form of a ring, between adjacent compression bar, interval is arranged described compression bar.
Described diaphragm comprises the curved diaphragm body in its cross section, and the middle part of diaphragm body arranges communicating pores, and the periphery of described diaphragm body is provided with the diaphragm seal of setting parallel with inner ring you face, and the external diameter of described diaphragm seal is less than the external diameter of interior land.
The end face of described interior land is provided with seal convexity that is that protrude its surface and that be annular, and described seal convexity is arranged near the interior edge of interior land, and the end face of described seal convexity is semicircle shape.
After adopting said structure, the present invention arranges on mouth mask venting port, and vacuum pressure valves is set in exhaust ports, in the present invention, the outer clamping piece of vacuum pressure valves can be contained in interior land to realize both detachable connection by spiral shell, after outer clamping piece and interior land spiral shell fill, the both sides that outer clamping piece and interior clamping piece are installed in cover body realize being connected and fixed of vacuum pressure valves and mouth mask, when mouth mask need to clean, outer clamping piece is revolved lower thus vacuum pressure valves is taken off, it is achieved that the detachable installation of vacuum pressure valves. Diaphragm along the break-make of guidepost Sliding Control outlet passageway, upwards can be pushed away during breath by diaphragm, and outlet passageway is opened, and during air-breathing, diaphragm falls after rise and closed by outlet passageway, ensures that the air of inspiration filters through mouth mask. This kind of structure mouth mask, replacing capable of washing, reduce the cost using mouth mask, and reduce medical disposable material to the pollution of environment, this kind of mouth mask is by the quick Exhaust Gas of vacuum pressure valves, preventing the gas in mouth mask from overflowing from other positions, user's sight line of interference wearing spectacles, makes the user of wearing spectacles also relieved can wear mouth mask. Cover body overlarge area protection face in the present invention; and it adopts pure cotton knitting face fabric; soft and high resilience; anti pilling; effectively prevent from wearing the electrostatic that friction produces, away from electrostatic puzzlement, good air permeability; do not worry wearing the oppressiveness that in process, sweat is detained, be more conducive to Human Physiology circulation and health.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail:
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of vacuum pressure valves.
Embodiment
As depicted in figs. 1 and 2, gauze mask comprises the cover body 13 being made up of multilayer pure cotton knitting face fabric, it is positioned at cover body 13 and can select the polyester-cotton blend of comfortable, the ventilative free from extraneous odour of pro-skin with the internal layer of skin contact in inner side, the two ends of cover body 13 are connected to the left earmuff 14 and right earcup 15 that can cover on ear, elastic tape 16 it is connected with between left earmuff and right earcup, can directly be enclosed within head during use, elastic tape 16 automatic tightness regulating, comfortable wearing and be not easy to come off.Being filled with PP silk floss respectively in left earmuff and right earcup, earmuff not clamp lug piece when wearing, soft warming, protection ear, makes ear more comfortable.
Outwards prop up in the middle part of cover body 13 and form gas buffer region, venting port 17 has been offered in the bottom of the corresponding gas buffer region of cover body 13, the cover body 13 being positioned at exhaust ports need to be lockstitched a border process, on cover body 13, corresponding mouth nose place is provided with the support 18 outwards will propped up in the middle part of cover body 13 removably, and support 18 uses bent diameter to be that the stainless steel strip of 0.2 0.5cm is made. in the present embodiment, the outside of cover body 13 is provided with along cover body 13 upper and lower to the encapsulation sheet 19 arranged, the both sides of encapsulation sheet 19 length direction sew respectively on cover body 13, make between encapsulation sheet 19 and cover body 13, to form the slotting dress seam that can insert dress support 18, upper end and the cover body 13 of encapsulation sheet 19 length direction are sewed up, described cover body 13 is provided with anti-channeling sheet 20 at the lower end of encapsulation sheet 19 length direction, the both sides of anti-channeling sheet 20 and lower edge all sew on cover body 13, the upper edge of anti-channeling sheet 20 is higher than the lower edge of encapsulation sheet 19, by drop-down for anti-channeling sheet 20 lower opening exposing encapsulation sheet 19 when inserting dress support 18, support 18 is inserted from bottom, then anti-channeling sheet 20 is unclamped, anti-channeling sheet 20 is by the closure of openings of encapsulation sheet 19 bottom, prevent support 18 from scurrying out. this kind of support 18 installs structure simply, is convenient to dismounting support 18.
Cover body 13 is provided with vacuum pressure valves, vacuum pressure valves comprises valve bonnet, diaphragm and mount pad, mount pad comprises rounded and is provided with the interior clamping piece 1 of inner via hole in the middle part of it, the external diameter of interior clamping piece 1 is greater than the diameter of venting port 17, interior clamping piece 1 outside surface is provided with the interior land 2 cylindrically of overhanging setting around inner via hole, the external diameter of interior land 2 is slightly less than the diameter of venting port, the center of inner via hole is provided with guidepost 3, multiple union lever 4 it is provided with between the outside surface of guidepost 3 and the internal surface of inner via hole, multiple union lever 4 be periphery carry out guidepost 3 supporting at guidepost 3 outside surface fixing, outlet passageway is formed between adjacent union lever 4, it is provided with communicating pores in the middle part of diaphragm and it is sleeved on guidepost 3 and can slide along guidepost 3 thus control the break-make of outlet passageway, the upper end of guidepost 3 is screwed with for the positioning head 5 that diaphragm is spacing.
Valve bonnet comprises rounded and is provided with the outer clamping piece 6 of outer through hole in the middle part of it, described outer clamping piece 6 is provided with the outer land 7 cylindrically of overhanging setting around outer through hole, the top of described outer land 7 is fixed with the shrouding that outer through hole is closed, and the sidepiece of described outer land 7 has offered air outlet; The outside surface of described interior land 2 is provided with outside screw, and the internal surface of the described outer outer through hole of clamping piece 6 is provided with the internal thread that the outside screw with interior land 2 matches. The thickness of outer clamping piece 6 is less than the axial length of interior land 2, and the sidepiece uniform ring of described outer land 7 is furnished with multiple rectangular air outlet 9, and the bottom that the lower edge of described air outlet 9 is close to outer land 7 is arranged, and the upper edge of air outlet 9 is higher than the upper surface of interior land 2. The outside surface of interior clamping piece 1 is provided with many compression bars 21, described compression bar 21 is in the form of a ring, between adjacent compression bar 21, interval is arranged, when being arranged on mouth mask, mouth mask is clamped by interior clamping piece 1 and outer clamping piece 6, stopping property when compression bar 21 adjustable height vacuum pressure valves and mouth mask clamp and stability, prevent it from dropping from mouth mask.
Diaphragm comprises the curved diaphragm body 10 in its cross section, and the middle part of diaphragm body 10 arranges communicating pores, and the periphery of described diaphragm body 10 is provided with the diaphragm seal 11 of setting parallel with interior land 2 end face, and the external diameter of described diaphragm seal 11 is less than the external diameter of interior land 2.The end face of interior land 2 is provided with seal convexity 12 that is that protrude its surface and that be annular, seal convexity 12 is arranged near the interior edge of interior land 2, the end face of seal convexity 12 is semicircle shape, diaphragm seal 11 realizes the closedown of vacuum pressure valves with seal convexity 12 laminating, seal convexity 12 in semicircle shape, its with diaphragm seal 11 for line face contacts, good sealing effect, during unlatching, open power less, it is convenient to the discharge of gas.
Propping up gas buffer region in the middle part of cover body 13 in the present invention and correspondence arranges venting port 17, and arrange vacuum pressure valves in exhaust ports, the gas of exhalation is discharged through vacuum pressure valves after cushioning in buffer zone again, prevents that breath pressure is excessive overflows from mouth mask edge. In the present invention, the outer clamping piece 6 of vacuum pressure valves can be contained in interior land 2 to realize both detachable connection by spiral shell, after outer clamping piece 6 and interior land 2 spiral shell fill, the both sides that outer clamping piece 6 and interior clamping piece 1 are installed in cover body 13 realize being connected and fixed of vacuum pressure valves and mouth mask, when mouth mask need to clean, outer clamping piece 6 is revolved lower thus vacuum pressure valves is taken off, it is achieved that the detachable installation of vacuum pressure valves. Diaphragm along the break-make of guidepost 3 Sliding Control outlet passageway, upwards can be pushed away during breath by diaphragm, and outlet passageway is opened, and during air-breathing, diaphragm falls after rise and closed by outlet passageway, ensures that the air of inspiration filters through mouth mask. The mouth mask of this kind of structure, replacing capable of washing, even if cover body 13 needs after using for a long time to change, vacuum pressure valves also can continue to use, and reduces the cost using mouth mask, and reduces medical disposable material to the pollution of environment, this kind of mouth mask is by the quick Exhaust Gas of vacuum pressure valves, preventing the gas in mouth mask from overflowing from other positions, user's sight line of interference wearing spectacles, makes the user of wearing spectacles also relieved can wear mouth mask. Cover body 13 overlarge area protection face in the present invention; and it adopts pure cotton knitting face fabric; soft and high resilience; anti pilling; effectively prevent from wearing the electrostatic that friction produces, away from electrostatic puzzlement, good air permeability; do not worry wearing the oppressiveness that in process, sweat is detained, be more conducive to Human Physiology circulation and health.
Claims (9)
1. a gauze mask, comprise the cover body (13) being made up of multilayer pure cotton knitting face fabric, described cover body is provided with vacuum pressure valves on (13), described vacuum pressure valves comprises valve bonnet, diaphragm and mount pad, it is characterized in that the two ends of described cover body (13) are connected to the left earmuff (14) and right earcup (15) that can cover on ear, elastic tape (16) it is connected with between described left earmuff and right earcup, described cover body (13) middle part is outwards propped up and is formed gas buffer region, venting port (17) has been offered in the bottom of the corresponding gas buffer region of described cover body (13), described mount pad comprises rounded and is provided with the interior clamping piece (1) of inner via hole in the middle part of it, the external diameter of described interior clamping piece (1) is greater than the diameter of venting port (17), described interior clamping piece (1) outside surface is provided with the interior land (2) cylindrically of overhanging setting around inner via hole, described interior land (2) is inserted in venting port (17) from cover body (13) inner side and is passed, the center of described inner via hole is provided with guidepost (3), multiple union lever (4) it is provided with between the outside surface of described guidepost (3) and the internal surface of inner via hole, described multiple union lever (4) be periphery carry out guidepost (3) supporting at guidepost (3) outside surface fixing, adjacent union lever forms outlet passageway between (4), it is provided with communicating pores in the middle part of described diaphragm and is sleeved on guidepost (3) upper and can slide along guidepost (3) thus control the break-make of outlet passageway,Described valve bonnet comprises rounded and is provided with the outer clamping piece (6) of outer through hole in the middle part of it, described outer clamping piece (6) is provided with the outer land (7) cylindrically of overhanging setting around outer through hole, the top of described outer land (7) is fixed with the shrouding (8) that outer through hole is closed, and the sidepiece of described outer land (7) has offered air outlet; The outside surface of described interior land (2) is provided with outside screw, the internal surface of the outer through hole of described outer clamping piece (6) is provided with the internal thread that the outside screw with interior land (2) matches, and described outer clamping piece (6) spiral shell is contained in interior land (2) cover body (13) is clamped by outer clamping piece (6) and interior clamping piece (1).
2. gauze mask according to claim 1, is characterized in that, the upper corresponding mouth nose place of described cover body (13) is provided with the support (18) outwards will propped up in the middle part of cover body removably.
3. gauze mask according to claim 2, it is characterized in that, the outside of described cover body is provided with along cover body upper and lower to the encapsulation sheet (19) arranged, the both sides of described encapsulation sheet (19) length direction sew respectively on cover body, make between encapsulation sheet (19) and cover body, to form the slotting dress seam that can insert dress support (18), the upper end of described encapsulation sheet (19) length direction and cover body are sewed up, described cover body is provided with anti-channeling sheet (20) at the lower end of encapsulation sheet (19) length direction, both sides and the lower edge of described anti-channeling sheet (20) all sew on cover body, the upper edge of described anti-channeling sheet (20) is higher than the lower edge of encapsulation sheet (19).
4. gauze mask according to claim 1, is characterized in that, is filled with PP silk floss respectively in described left earmuff and right earcup.
5. gauze mask according to claim 1, it is characterized in that, the thickness of described outer clamping piece (6) is less than the axial length of interior land (2), the sidepiece uniform ring of described outer land (7) is furnished with multiple rectangular air outlet, the bottom that the lower edge of described air outlet is close to outer land (7) is arranged, and the upper edge of air outlet is higher than the upper surface of interior land (2).
6. gauze mask according to claim 1, is characterized in that, the upper end of described guidepost (3) is screwed with for the positioning head (5) that diaphragm is spacing.
7. gauze mask according to claim 1, it is characterized in that, the outside surface of described interior clamping piece (1) is provided with many compression bars (21), and in the form of a ring, between adjacent compression bar (21), interval is arranged described compression bar (21).
8. gauze mask according to any one of claim 1 to 7, it is characterized in that, described diaphragm comprises the curved diaphragm body (10) in its cross section, the middle part of diaphragm body (10) arranges communicating pores, the periphery of described diaphragm body (10) is provided with the diaphragm seal (11) of setting parallel with interior land (2) end face, and the external diameter of described diaphragm seal (11) is less than the external diameter of interior land (2).
9. gauze mask according to claim 8, it is characterized in that, the end face of described interior land (2) is provided with seal convexity (12) that is that protrude its surface and that be annular, described seal convexity (12) is arranged near the interior edge of interior land (2), and the end face of described seal convexity (12) is semicircle shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610124181.8A CN105661691A (en) | 2016-03-04 | 2016-03-04 | Novel mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610124181.8A CN105661691A (en) | 2016-03-04 | 2016-03-04 | Novel mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105661691A true CN105661691A (en) | 2016-06-15 |
Family
ID=56306844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610124181.8A Pending CN105661691A (en) | 2016-03-04 | 2016-03-04 | Novel mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105661691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108991626A (en) * | 2018-08-29 | 2018-12-14 | 张家港市美洁日用品有限公司 | A kind of Respirator structure with breather valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009166181A (en) * | 2008-01-17 | 2009-07-30 | Toyota Motor Corp | Robot hand |
| CN201869814U (en) * | 2010-10-21 | 2011-06-22 | 陈琳彬 | Mask |
| CN203523849U (en) * | 2013-11-04 | 2014-04-09 | 陈华锋 | Mask |
| CN203762326U (en) * | 2014-04-04 | 2014-08-13 | 美佳德科技（无锡）有限公司 | Cup type mask with filter sheet |
| CN104432701A (en) * | 2013-09-18 | 2015-03-25 | 封正合 | Portable mask |
| CN204519419U (en) * | 2015-04-03 | 2015-08-05 | 陈华锋 | Novel breather valve and the protective mask with breather valve |
-
2016
- 2016-03-04 CN CN201610124181.8A patent/CN105661691A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009166181A (en) * | 2008-01-17 | 2009-07-30 | Toyota Motor Corp | Robot hand |
| CN201869814U (en) * | 2010-10-21 | 2011-06-22 | 陈琳彬 | Mask |
| CN104432701A (en) * | 2013-09-18 | 2015-03-25 | 封正合 | Portable mask |
| CN203523849U (en) * | 2013-11-04 | 2014-04-09 | 陈华锋 | Mask |
| CN203762326U (en) * | 2014-04-04 | 2014-08-13 | 美佳德科技（无锡）有限公司 | Cup type mask with filter sheet |
| CN204519419U (en) * | 2015-04-03 | 2015-08-05 | 陈华锋 | Novel breather valve and the protective mask with breather valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108991626A (en) * | 2018-08-29 | 2018-12-14 | 张家港市美洁日用品有限公司 | A kind of Respirator structure with breather valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |