CN113856081A - Mask - Google Patents
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- Publication number
- CN113856081A CN113856081A CN202111278253.1A CN202111278253A CN113856081A CN 113856081 A CN113856081 A CN 113856081A CN 202111278253 A CN202111278253 A CN 202111278253A CN 113856081 A CN113856081 A CN 113856081A
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- CN
- China
- Prior art keywords
- cloth
- air
- circulation
- stabilizing
- control
- 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
- 239000004744 fabric Substances 0.000 claims abstract description 204
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 62
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 239000012943 hotmelt Substances 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 6
- 239000002657 fibrous material Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 210000001331 nose Anatomy 0.000 abstract description 37
- 210000000214 mouth Anatomy 0.000 abstract description 12
- 210000003928 nasal cavity Anatomy 0.000 abstract description 6
- 230000003434 inspiratory effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 206010063659 Aversion Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- -1 and is made of gauze Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to a mask which comprises control outer cloth, wherein the left side and the right side of the control outer cloth are fixedly connected with stabilizing mechanisms, air stabilizing mechanisms are arranged inside the control outer cloth, the stabilizing mechanisms comprise extension stabilizing cloth and stabilizing telescopic ropes, and the extension stabilizing cloth is positioned on the two sides of the control outer cloth and is fixedly connected with the control outer cloth. This gauze mask, stabilize cloth and stabilize flexible rope through the extension of the outer cloth left and right sides of setting up control, thereby can be convenient two extend the outer cloth of control between the stable cloth, nose stabilizing block through setting up the positive fixed connection of nose circulation cloth, thereby can conveniently protect outstanding nose wing space, through the flexible welt that sets up the positive fixed connection of oral area circulation cloth, thereby can keep apart the circulation of air between oral area circulation cloth and the flexible welt, reach and prevent to closely laminate upper lip and gauze mask and block the gas of oral cavity exhalation by the inspiratory purpose of nasal cavity.
Description
Technical Field
The invention relates to the technical field of masks, in particular to a mask.
Background
The mask is a sanitary article, is generally worn on the mouth and nose for filtering air entering the mouth and nose so as to achieve the effect of blocking harmful gas, smell, spray, virus and other substances, and is made of gauze, paper and other materials.
With the development of science and technology, the living standard of people is improved, and the mask is more and more emphasized under the influence of diseases such as epidemic situations, and the traditional mask such as the mask provided by the Chinese patent CN 101678221B does not have an oral-nasal gas isolation device, so that the mask is not only harmful to health when being used by people, but also is more difficult to endure in smell sense, and the problem is solved by the mask.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the mask, which has the advantages that the mask is designed and manufactured to separate and shunt the air flow of the mouth and the nose, so that a wearer does not suffer from the reciprocating circulation of breathing in the nasal cavity after breathing out, the aversion feeling of the wearer when wearing the mask is relieved to the greatest extent, and the like, and the problem that the wearer can temporarily endure the smell in a short time, but the convict when wearing the mask for a long time firstly breathes back the exhaust gas with peculiar smell exhaled by the wearer and is more difficult to bear is solved.
(II) technical scheme
In order to realize the purpose that the mask is provided with an oral and nasal gas isolation device and the safety is improved, the invention provides the following technical scheme: a mask comprises a control outer cloth, wherein the left side and the right side of the control outer cloth are both fixedly connected with a stabilizing mechanism, and an air stabilizing mechanism is arranged inside the control outer cloth;
the stabilizing mechanism comprises extension stabilizing cloth and stabilizing telescopic ropes, the extension stabilizing cloth is positioned at two sides of the control outer cloth and fixedly connected with the control outer cloth, and the two sides of the extension stabilizing cloth, which are away from each other, are fixedly connected with the stabilizing telescopic ropes;
stabilize air mechanism and include nasal part circulation of air cloth, nasal part steady piece, oral area circulation of air cloth and flexible strip of pasting, nasal part circulation of air cloth is located the outer cloth fixed connection of inside and control of the outer cloth of control, the positive fixedly connected with nasal part steady piece of nasal part circulation of air cloth, the inside of the outer cloth of control and the bottom fixedly connected with that is located nasal part steady piece and nasal part steady piece fixed connection's oral area circulation of air cloth, the flexible strip of pasting of positive fixedly connected with of oral area circulation of air cloth.
Further, the outer cloth of control is square cloth strip, and the front of the outer cloth of control is seted up with the stable piece of nasal part and oral area circulation of air cloth to the gauze mask of adaptation separate the hole.
Further, the extension stabilizing cloth is in a strip shape, and the extension stabilizing cloth is connected with the control outer cloth in a hot melting welding mode.
Furthermore, the stable telescopic rope consists of a middle rope body and bonding strips at two ends, and the stable telescopic rope is connected with the extension stable cloth in a hot melting welding mode.
Further, nasal part circulation of air cloth is square cloth strip, and the positive center department arch of nasal part circulation of air cloth have with the nasal part steady block to the nose groove of adaptation, the connected mode of nasal part circulation of air cloth and nasal part steady block be the bonding, the connected mode of cloth and nasal part steady block outside the control is hot melt welded connection, nasal part circulation of air cloth comprises outer cloth of protection, filter cloth and comfortable soft cloth, the shape of nasal part circulation of air cloth and oral part circulation of air cloth is the same.
Furthermore, oral area circulation of air cloth is square cloth strip, and oral area circulation of air cloth and the connected mode of controlling outer cloth and nose stable piece are the hot melt welded connection.
Further, flexible welt comprises the stabilizing block of rear side and positive parting bead, and oral area circulation of air cloth is waterproof for the hot melt welded connection with being connected of flexible welt, and oral area circulation of air cloth and the inside of nasal part stabilizing block all are provided with the control cage.
Further, the filter cloth and the comfortable soft cloth are located inside the protective outer cloth, the protective outer cloth is composed of two shielding cloths, and the two shielding cloths are connected in a hot melting welding mode.
Furthermore, the comfortable soft cloth is soft and cotton-shaped, the filter cloth is made of fiber materials, the interior of the fiber materials is subjected to slurry coating treatment, one end of the comfortable soft cloth is provided with a hydrophilic material, the other end of the comfortable soft cloth is provided with a hydrophobic material, and the edge parts of the filter cloth and the comfortable soft cloth are connected with the protective outer cloth in a hot melting welding mode.
(III) advantageous effects
Compared with the prior art, the invention provides a mask, which has the following beneficial effects:
this gauze mask, stabilize cloth and stable flexible rope through the extension of the outer cloth left and right sides of setting control, thereby can be convenient two extend the outer cloth of control between the stable cloth of cloth, nose stabilizing block through setting up the positive fixed connection of nose circulation cloth, thereby can convenient outstanding nose wing space of protection, flexible welt through setting up the positive fixed connection of oral area circulation cloth, thereby can keep apart the circulation of air between oral area circulation cloth and the flexible welt, reach and prevent to closely laminating last lip and gauze mask and block the gas of oral cavity exhalation by the inspiratory purpose of nasal cavity, with the reposition of redundant personnel of oral cavity nasal airflow nature isolation in the gauze mask, make the person of wearing no longer suffer the pernicious cycle of exhaled oral cavity by reciprocal suction nasal cavity, promote the body and mind health and alleviate the dislike sense when the person of wearing gauze mask, user's use has been made things convenient for.
Drawings
FIG. 1 is a schematic view of the mask of the present invention;
FIG. 2 is a left side view of the mask of the present invention;
fig. 3 is a side cross-sectional view of the nasal air distribution of the inventive mask.
In the figure: the nose protection device comprises 1 control outer cloth, 2 extension stabilizing cloth, 3 stabilizing telescopic ropes, 4 nose air circulation cloth, 5 nose stabilizing blocks, 6 mouth air circulation cloth, 7 telescopic adhesive strips, 41 protection outer cloth, 42 filter cloth and 43 comfortable soft cloth.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a mask comprises a control outer cloth 1, stabilizing mechanisms fixedly connected to the left and right sides of the control outer cloth 1, an air stabilizing mechanism arranged inside the control outer cloth 1, the stabilizing mechanisms comprising an extension stabilizing cloth 2 and a stabilizing telescopic cord 3, the extension stabilizing cloth 2 positioned on both sides of the control outer cloth 1 and fixedly connected to the control outer cloth 1, the two sides of the extension stabilizing cloth 2 away from each other are fixedly connected to the stabilizing telescopic cord 3, the extension stabilizing cloth 2 and the stabilizing telescopic cord 3 positioned on the left and right sides of the control outer cloth 1 are arranged to conveniently stabilize the control outer cloth 1 between the two extension stabilizing cloths 2, the air stabilizing mechanism comprises a nose air circulation cloth 4, a nose stabilizing block 5, a mouth air circulation cloth 6 and a telescopic strip 7, the nose air circulation cloth 4 positioned inside the control outer cloth 1 and fixedly connected to the control outer cloth 1, the nose stabilizing block 5 fixedly connected to the front side of the nose air circulation cloth 4, through the nose stable piece 5 that sets up 4 positive fixed connection of nose circulation of air cloth to can conveniently protect outstanding nose, the inside of the outer cloth 1 of control and the oral area circulation of air cloth 6 that is located 5 fixed connection of the bottom fixedly connected with of nose stable piece and 5 fixed connection of nose, the flexible welt 7 of the positive fixedly connected with of oral area circulation of air cloth 6.
In this embodiment, cloth 1 is square cloth strip outside the control, and the front of cloth 1 is seted up and is separated the hole to the gauze mask of adaptation with nasal part stabilizing block 5 and oral area circulation of air cloth 6 outside the control, stable protection oral area that can be convenient.
In this embodiment, the extension stabilizing cloth 2 is a long strip, and the connection mode of the extension stabilizing cloth 2 and the control outer cloth 1 is a hot-melt welding connection, so that the fixation of the outer cloth 1 and the extension stabilizing cloth 2 can be controlled.
In this embodiment, stabilize flexible rope 3 and constitute by the rope body in the middle and the bonding strip at both ends, and stabilize the connected mode of flexible rope 3 and extension stability cloth 2 for bonding, can be through stabilizing the outer cloth 1 of 3 convenient stable control of flexible rope.
In this embodiment, nose circulation of air cloth 4 is square cloth strip, and nose circulation of air cloth 4's positive center department arch have with the nose groove of stable piece 5 to the adaptation of nose, the connected mode of nose circulation of air cloth 4 and stable piece 5 of nose is hot melt welded connection, the connected mode of cloth 1 and stable piece 5 of nose is hot melt welded connection outside the control, nose circulation of air cloth 4 is by the outer cloth 41 of protection, filter cloth 42 and comfortable soft cloth 43 are constituteed, the shape of nose circulation of air cloth 4 and oral area circulation of air cloth 6 is the same, can stably protect the nose.
In this embodiment, oral area circulation of air cloth 6 is square cloth strip, and oral area circulation of air cloth 6 is thermofussion welded connection with the connected mode of control outer cloth 1 and nasal part stabilizing block 5, flexible welt 7 comprises the stabilizing block of rear side and positive parting bead, and oral area circulation of air cloth 6 is waterproof for thermofussion welded connection with being connected of flexible welt 7, oral area circulation of air cloth 6 all is provided with the control cage with the inside of nasal part stabilizing block 5, thereby can keep apart the circulation of air between oral area circulation of air cloth 6 and the flexible welt 7.
In this embodiment, the filter cloth 42 and the comfortable soft cloth 43 are located inside the protective outer cloth 41, the protective outer cloth 41 is composed of two pieces of shielding cloth, and the two pieces of shielding cloth are connected by hot-melt welding, so that the filter cloth 42 and the comfortable soft cloth 43 can be ensured to be stabilized.
In this embodiment, comfortable soft cloth 43 is soft cotton form, and filter cloth 42 is fiber material, and fiber material is inside to be handled through hanging thick liquid, and comfortable soft cloth 43's one end has hydrophilic material, and the other end has hydrophobic material, and filter cloth 42 and comfortable soft cloth 43's limit portion all with the outer cloth 41 hot melt welded connection of protection to guarantee ventilative travelling comfort.
The beneficial effects of the above embodiment are as follows:
the mask is provided with the extending stable cloth 2 and the stable telescopic ropes 3 which control the left side and the right side of the outer cloth 1, thereby being capable of conveniently stabilizing the control outer cloth 1 between the two extension stabilizing cloths 2, and through arranging the nose part stabilizing block 5 fixedly connected with the front surface of the nose part air circulation cloth 4, thereby being capable of conveniently protecting the space of the protruding nose wing, and by arranging the telescopic adhesive tape 7 fixedly connected with the front surface of the oral air circulation cloth 6, thereby can keep apart the circulation of air between oral area circulation of air cloth 6 and the flexible strip of sticking to 7, reach and prevent to block the gas of oral cavity exhalation by the inspiratory purpose of nasal cavity with the inseparable laminating of upper lip and gauze mask, keep apart the reposition of redundant personnel with the oral cavity nasal air current nature in the gauze mask, make the person of wearing no longer suffer the vicious circle of exhaling oral cavity gas by reciprocating inhalation nasal cavity, promote physical and mental health and alleviate the aversion sense of the person of wearing when the gauze mask, made things convenient for user's use.
The electrical components shown herein are electrically connected to a main controller and a power supply, the main controller can be a conventional known device controlled by a computer, and the conventional power connection technology disclosed in the prior art is not described in detail herein.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a gauze mask, includes outer cloth (1) of control, its characterized in that: the left side and the right side of the control outer cloth (1) are both fixedly connected with stabilizing mechanisms, and air stabilizing mechanisms are arranged inside the control outer cloth (1);
the stabilizing mechanism comprises extension stabilizing cloth (2) and stabilizing telescopic ropes (3), the extension stabilizing cloth (2) is positioned at two sides of the control outer cloth (1) and is fixedly connected with the control outer cloth (1), and the stabilizing telescopic ropes (3) are fixedly connected at the opposite sides of the two extension stabilizing cloth (2);
stabilize air mechanism and include nasal part circulation of air cloth (4), nasal part stable piece (5), oral area circulation of air cloth (6) and flexible welt (7), nasal part circulation of air cloth (4) are located the outside control inside of cloth (1) and the outer cloth (1) fixed connection of control, the positive fixedly connected with nasal part stable piece (5) of nasal part circulation of air cloth (4), the inside of the outer cloth of control (1) and the oral area circulation of air cloth (6) that is located the bottom fixedly connected with of nasal part stable piece (5) and nasal part stable piece (5) fixed connection, the flexible welt (7) of the positive fixedly connected with of oral area circulation of air cloth (6).
2. The mask of claim 1 wherein: the outer cloth (1) of control is square cloth strip, and the front of the outer cloth (1) of control is seted up with nasal part stabilizing block (5) and oral area circulation of air cloth (6) to the gauze mask of adaptation separate the hole.
3. The mask of claim 2 wherein: the extension stabilizing cloth (2) is a long strip, and the connection mode of the extension stabilizing cloth (2) and the control outer cloth (1) is hot-melt welding connection.
4. A mask according to claim 3, wherein: the stable telescopic rope (3) is composed of a middle rope body and bonding strips at two ends, and the stable telescopic rope (3) is bonded with the extension stable cloth (2).
5. The mask of claim 4 wherein: nose circulation of air cloth (4) are square cloth strip, and nose circulation of air cloth (4) positive center department arch have with nose stable piece (5) to the nose groove of adaptation, and nose circulation of air cloth (4) is hot melt welded connection with the connected mode of nose stable piece (5), and the connected mode of cloth (1) and nose stable piece (5) is hot melt welded connection outside the control, nose circulation of air cloth (4) comprises outer cloth (41), filter cloth (42) and comfortable soft cloth (43) of protection, the shape of nose circulation of air cloth (4) and oral area circulation of air cloth (6) is the same.
6. The mask of claim 5 wherein: oral area circulation cloth (6) are square cloth strip, and oral area circulation cloth (6) are hot melt welded connection with the connected mode of controlling outer cloth (1) and nasal part stabilizing block (5).
7. The mask of claim 6 wherein: flexible paster strip (7) comprise the stabilizing block of rear side and positive parting bead, and oral area circulation of air cloth (6) is waterproof for hot melt welded connection with being connected of flexible paster strip (7), and the inside of oral area circulation of air cloth (6) and nasal part stabilizing block (5) all is provided with the control cage.
8. The mask of claim 7 wherein: the filter cloth (42) and the comfortable soft cloth (43) are positioned inside the protective outer cloth (41), the protective outer cloth (41) is composed of two shielding cloths, and the two shielding cloths are connected in a hot melting welding mode.
9. The mask of claim 8 wherein: comfortable soft cloth (43) are soft cotton form, and filter cloth (42) are fiber material, and inside through hanging thick liquid and handle, the one end of comfortable soft cloth (43) has hydrophilic material, and the other end has hydrophobic material, and the limit portion of filter cloth (42) and comfortable soft cloth (43) all with protection outer cloth (41) hot melt welded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111278253.1A CN113856081A (en) | 2021-10-30 | 2021-10-30 | Mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111278253.1A CN113856081A (en) | 2021-10-30 | 2021-10-30 | Mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113856081A true CN113856081A (en) | 2021-12-31 |
Family
ID=78986329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111278253.1A Pending CN113856081A (en) | 2021-10-30 | 2021-10-30 | Mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113856081A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7706660A (en) * | 1976-06-16 | 1977-12-20 | Johnson & Johnson | FACIAL MASK. |
| US20040226563A1 (en) * | 2003-05-12 | 2004-11-18 | Zhaoxia Xu | Face Mask with Double Breathing Chambers |
| CN104522908A (en) * | 2014-11-23 | 2015-04-22 | 张家界航空工业职业技术学院 | Bad-breath-prevention mask |
| CN204635145U (en) * | 2015-05-29 | 2015-09-16 | 陈虎 | A kind of nasal surface portion isolated mouth and nose divergence type mouth mask |
| CN213939798U (en) * | 2020-11-03 | 2021-08-13 | 江西爱丽斯医疗科技有限公司 | Mouth-nose separation type mask |
| CN214340252U (en) * | 2020-06-01 | 2021-10-08 | 北京坚韧科技有限公司 | Mouth and nose separation dual cycle mask |
-
2021
- 2021-10-30 CN CN202111278253.1A patent/CN113856081A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7706660A (en) * | 1976-06-16 | 1977-12-20 | Johnson & Johnson | FACIAL MASK. |
| US20040226563A1 (en) * | 2003-05-12 | 2004-11-18 | Zhaoxia Xu | Face Mask with Double Breathing Chambers |
| CN104522908A (en) * | 2014-11-23 | 2015-04-22 | 张家界航空工业职业技术学院 | Bad-breath-prevention mask |
| CN204635145U (en) * | 2015-05-29 | 2015-09-16 | 陈虎 | A kind of nasal surface portion isolated mouth and nose divergence type mouth mask |
| CN214340252U (en) * | 2020-06-01 | 2021-10-08 | 北京坚韧科技有限公司 | Mouth and nose separation dual cycle mask |
| CN213939798U (en) * | 2020-11-03 | 2021-08-13 | 江西爱丽斯医疗科技有限公司 | Mouth-nose separation type mask |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211231 |
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| RJ01 | Rejection of invention patent application after publication |