CN204635136U - A kind of anti-vehicle exhaust haze mouth mask - Google Patents
A kind of anti-vehicle exhaust haze mouth mask Download PDFInfo
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- CN204635136U CN204635136U CN201520129824.9U CN201520129824U CN204635136U CN 204635136 U CN204635136 U CN 204635136U CN 201520129824 U CN201520129824 U CN 201520129824U CN 204635136 U CN204635136 U CN 204635136U
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- polypropylene
- activated carbon
- carbon fiber
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- titanium dioxide
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- 239000004744 fabric Substances 0.000 claims abstract description 39
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- 239000004743 Polypropylene Substances 0.000 claims abstract description 33
- 229920001155 polypropylene Polymers 0.000 claims abstract description 33
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 16
- 241001122767 Theaceae Species 0.000 claims abstract description 15
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- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 abstract description 29
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 6
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- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 6
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- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 3
- 102000001554 Hemoglobins Human genes 0.000 description 3
- 108010054147 Hemoglobins Proteins 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
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- 238000007598 dipping method Methods 0.000 description 3
- CBMPTFJVXNIWHP-UHFFFAOYSA-L disodium;hydrogen phosphate;2-hydroxypropane-1,2,3-tricarboxylic acid Chemical compound [Na+].[Na+].OP([O-])([O-])=O.OC(=O)CC(O)(C(O)=O)CC(O)=O CBMPTFJVXNIWHP-UHFFFAOYSA-L 0.000 description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 3
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- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- BTURAGWYSMTVOW-UHFFFAOYSA-M sodium dodecanoate Chemical compound [Na+].CCCCCCCCCCCC([O-])=O BTURAGWYSMTVOW-UHFFFAOYSA-M 0.000 description 3
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- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 3
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- 239000011718 vitamin C Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model discloses a kind of anti-vehicle exhaust haze mouth mask, described mask body is followed successively by extexine (1) from outside to inside, intermediate filter layer (6), endonexine (5), described extexine is the bafta of load nano-titanium dioxide, described intermediate filter layer (6) is followed successively by polypropylene spun-bonded non-woven fabrics (7) from outside to inside, electrostatic electret polypropylene melt blown non-woven fabric (8), activated carbon fiber layers (9), polypropylene spun-bonded non-woven fabrics (10), wherein activated carbon fiber layers load has carbon monoxide remover, described endonexine (5) is bafta loading tea polyphenol.
Description
Technical Field
The invention belongs to an automobile exhaust and haze prevention mask.
Background
At present, the quantity of motor vehicles in China reaches more than 2.2 hundred million, and the motor vehicles rapidly increase at an increasing rate of more than 10 percent per year, so that the problem of automobile exhaust pollution is highlighted. In 2013, the annual newspaper for preventing and controlling pollution of Chinese motor vehicles indicates that the pollution of automobile exhaust accounts for more than 60% of the total amount of urban air pollution, and the aura of serious photochemical smog appears in cities such as Beijing, Shanghai and the like. At present, protective masks aiming at automobile exhaust in the market do not exist, masks with the automobile exhaust prevention function are publicized by utilizing active carbon particles to absorb a small part of harmful components in the automobile exhaust, the main harmful components of the automobile exhaust are carbon monoxide, hydrocarbon, nitric oxide, trace heavy metal, sulfur oxide and the like, the problems cannot be solved by the common active carbon particles, the adsorption capacity and the adsorption capacity are very limited, and the protection effect is not ideal.
In recent years, haze in large and medium-sized cities in China frequently occurs, PM2.5 monitored in various places exceeds the standard seriously, the frequently occurring haze causes serious harm to the health of people, and particularly, the harm is more serious for people such as traffic police, cleaners and the like who move outdoors for a long time. And ordinary haze gauze mask fish dragon mixes, and a lot of antifog haze effect itself is not good, generally does not have automobile exhaust's safeguard function moreover. In order to solve the problem, it is necessary to develop a mask capable of protecting the automobile exhaust and haze, so that the appearance of the anti-automobile exhaust and haze mask is urgently needed.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automobile tail gas and haze prevention mask.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a prevent antifog haze gauze mask of automobile exhaust, the gauze mask body is extexine (1), middle filter layer (6), interior nexine (5) from outer to interior in proper order, the extexine is the cotton fabric of load nanometer titanium dioxide, middle filter layer (6) from outer to interior in proper order for polypropylene to spin-bond non-woven fabrics (7), static electret polypropylene melt-blow non-woven fabrics (8), activated carbon fiber layer (9), polypropylene to spin-bond non-woven fabrics (10), wherein activated carbon fiber layer load has the carbon monoxide elimination agent, interior nexine (5) are cotton fabric load tea polyphenol.
Further, preferably, the outer surface layer (1) adopts cotton fabric loaded with nano titanium dioxide, wherein the cotton fabric is subjected to water repellent treatment, and the water repellent agent is organosilicon or organofluorine; the nano titanium dioxide is nano titanium dioxide dispersion liquid and comprises the following components in parts by weight: 1 part of cross-linking agent, 4 parts of dispersion stock solution and 50 parts of deionized water, wherein the cross-linking agent is acrylate, and the dispersion stock solution comprises the following components in parts by weight: 1 part of nano titanium dioxide particles, 2 parts of a compound dispersing agent and 97 parts of deionized water, wherein the compound dispersing agent is prepared by compounding 2 kinds of sodium lignosulphonate, sodium dodecyl benzene sulfonate, sodium laurate, triethanolamine, tween 80, sodium tripolyphosphate, ammonium polyacrylate and sodium hexametaphosphate in equal amount.
Further, preferably, the outer surface layer (1) is loaded with nano titanium dioxide by using cotton fabric, and the loading process comprises the following steps:
according to the weight, 1 part of nano titanium dioxide particles, 2 parts of compound dispersing agent and 97 parts of deionized water are dispersed for 10min by an ultrasonic cleaner to prepare nano titanium dioxide dispersion stock solution, then the nano titanium dioxide dispersion stock solution, a cross-linking agent and the deionized water are uniformly stirred in a ratio of 4:1:50 by weight to prepare nano titanium dioxide dispersion solution, then the cotton fabric subjected to water repellent finishing is treated in a two-dipping and two-rolling mode (the bath ratio is 1: 20), and the fabric of the outer surface layer (1) is obtained after drying.
Further, preferably, the activated carbon fiber layer in the intermediate filter layer (6) is activated carbon fiber, and the carbon monoxide elimination agent is one or more of hemoglobin, hemin, diatomite, cuprous chloride, NaY molecular sieve, CuY molecular sieve, palladium chloride and manganese oxide.
Further, it is preferable that the activated carbon fiber layer in the intermediate filter layer (6) is loaded with a carbon monoxide elimination agent, and the loading process includes the steps of:
according to the weight, 2 parts of carbon monoxide remover, 2 parts of vitamin C, 2.5 parts of sodium carbonate, 5 parts of activated carbon fiber and 990.5 parts of deionized water are stirred and adsorbed for 6 hours in water bath at 40 ℃, and then the activated carbon fiber layer is obtained after filtration and drying.
Further, preferably, the inner lining layer (5) is made of cotton fabric loaded with tea polyphenol, and the loading step is as follows:
preparing tea polyphenol into a 1-5 wt% tea polyphenol solution, adding cotton fabric (bath ratio is 1:50), adjusting the pH value to 4-6 by using a disodium hydrogen phosphate-citric acid buffer solution, heating to 90 ℃ at the initial temperature of 20-40 ℃ at the speed of 2 ℃/min, keeping the temperature for 60min, and drying to obtain the lining (5).
Further, preferably, the upper part of the inner lining is provided with a plastic pad (4) which is positioned at the bridge of the nose when the nose-guard mask is worn.
Furthermore, preferably, the two ends of the mask are threaded with ear wires, and a plastic pig nose buckle (2) is arranged on the ear wires and used for adjusting the sizes of the ear wires of the mask.
Further, preferably, the polypropylene spunbonded nonwoven fabric (7), the electrostatic electret polypropylene meltblown nonwoven fabric (8), the activated carbon fiber layer (9) and the polypropylene spunbonded nonwoven fabric (10) are reinforced together through thermal bonding to form the filter element.
After the scheme is adopted, the mask with the three-layer filtering structure can ensure that main harmful ingredients in automobile exhaust can be efficiently filtered, and meanwhile haze can be efficiently filtered.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The present invention will be described in detail below with reference to the accompanying drawings so that the above advantages of the present invention will be more apparent. Wherein,
the technical scheme of the invention is further explained by combining the accompanying drawings as follows:
FIG. 1 is a schematic front view of the mask for preventing automobile exhaust and haze;
FIG. 2 is a schematic reverse side view of the mask for preventing automobile exhaust and haze;
FIG. 3 is a schematic diagram of a filter element of the mask for preventing automobile exhaust and haze;
wherein: 1. an outer surface layer of the mask; 2. plastic pig nose buttons; 3. a trademark; 4. a plastic gasket; 5. an inner lining layer; 6. an intermediate filter layer; 7. a polypropylene spunbond nonwoven fabric; 8. electrostatic electret polypropylene melt-blown nonwoven fabric; 9. an activated carbon fiber layer; 10. a polypropylene spunbond nonwoven.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
Particularly, in order to overcome the defects of the prior art, the invention provides the automobile exhaust and haze prevention mask which has the haze prevention effect and can protect automobile exhaust. Wherein, an antifog haze gauze mask of anti-automobile exhaust, the gauze mask body is extexine (1), middle filter layer (6), interior nexine (5) from outer to interior in proper order, the extexine is the cotton fabric of load nanometer titanium dioxide, middle filter layer (6) is from outer to interior in proper order for polypropylene to spin bond non-woven fabrics (7), static electret polypropylene to melt and spout non-woven fabrics (8), activated carbon fiber layer (9), polypropylene to spin bond non-woven fabrics (10), and wherein activated carbon fiber layer load has the carbon monoxide elimination agent, interior nexine (5) are cotton fabric load tea polyphenol.
Further, preferably, the outer surface layer (1) adopts cotton fabric loaded with nano titanium dioxide, wherein the cotton fabric is subjected to water repellent treatment, and the water repellent agent is organosilicon or organofluorine; the nano titanium dioxide is nano titanium dioxide dispersion liquid and comprises the following components in parts by weight: 1 part of cross-linking agent, 4 parts of dispersion stock solution and 50 parts of deionized water, wherein the cross-linking agent is acrylate, and the dispersion stock solution comprises the following components in parts by weight: 1 part of nano titanium dioxide particles, 2 parts of a compound dispersing agent and 97 parts of deionized water, wherein the compound dispersing agent is prepared by compounding 2 kinds of sodium lignosulphonate, sodium dodecyl benzene sulfonate, sodium laurate, triethanolamine, tween 80, sodium tripolyphosphate, ammonium polyacrylate and sodium hexametaphosphate in equal amount.
Further, preferably, the outer surface layer (1) is loaded with nano titanium dioxide by using cotton fabric, and the loading process comprises the following steps:
according to the weight, 1 part of nano titanium dioxide particles, 2 parts of compound dispersing agent and 97 parts of deionized water are dispersed for 10min by an ultrasonic cleaner to prepare nano titanium dioxide dispersion stock solution, then the nano titanium dioxide dispersion stock solution, a cross-linking agent and the deionized water are uniformly stirred in a ratio of 4:1:50 by weight to prepare nano titanium dioxide dispersion solution, then the cotton fabric subjected to water repellent finishing is treated in a two-dipping and two-rolling mode (the bath ratio is 1: 20), and the fabric of the outer surface layer (1) is obtained after drying.
Further, preferably, the activated carbon fiber layer in the intermediate filter layer (6) is activated carbon fiber, and the carbon monoxide elimination agent is one or more of hemoglobin, hemin, diatomite, cuprous chloride, NaY molecular sieve, CuY molecular sieve, palladium chloride and manganese oxide.
Further, it is preferable that the activated carbon fiber layer in the intermediate filter layer (6) is loaded with a carbon monoxide elimination agent, and the loading process includes the steps of:
according to the weight, 2 parts of carbon monoxide remover, 2 parts of vitamin C, 2.5 parts of sodium carbonate, 5 parts of activated carbon fiber and 990.5 parts of deionized water are stirred and adsorbed for 6 hours in water bath at 40 ℃, and then the activated carbon fiber layer is obtained after filtration and drying.
Further, preferably, the inner lining layer (5) is made of cotton fabric loaded with tea polyphenol, and the loading step is as follows:
preparing tea polyphenol into a 1-5 wt% tea polyphenol solution, adding cotton fabric (bath ratio is 1:50), adjusting the pH value to 4-6 by using a disodium hydrogen phosphate-citric acid buffer solution, heating to 90 ℃ at the initial temperature of 20-40 ℃ at the speed of 2 ℃/min, keeping the temperature for 60min, and drying to obtain the lining (5).
Further, preferably, the upper part of the inner lining is provided with a plastic pad (4) which is positioned at the bridge of the nose when the nose-guard mask is worn.
Furthermore, preferably, the two ends of the mask are threaded with ear wires, and a plastic pig nose buckle (2) is arranged on the ear wires and used for adjusting the sizes of the ear wires of the mask.
Further, preferably, the polypropylene spunbonded nonwoven fabric (7), the electrostatic electret polypropylene meltblown nonwoven fabric (8), the activated carbon fiber layer (9) and the polypropylene spunbonded nonwoven fabric (10) are reinforced together through thermal bonding to form the filter element.
That is, in order to achieve the above object, the present invention adopts the technical solution:
the mask body is sequentially provided with an outer surface layer, a middle filter layer and an inner lining layer from outside to inside. The outer surface layer is a cotton fabric loaded with nano titanium dioxide, the middle filter layer is sequentially a polypropylene spun-bonded non-woven fabric, an electrostatic electret polypropylene melt-blown non-woven fabric, an activated carbon fiber layer and a polypropylene spun-bonded non-woven fabric from outside to inside, wherein the activated carbon fiber layer is loaded with a carbon monoxide elimination agent. The inner lining layer is made of cotton fabric loaded with tea polyphenol.
Preferably, the automobile exhaust gas and haze preventing mask is characterized in that cotton fabrics are adopted to load nanometer titanium dioxide on the outer surface layer of the automobile exhaust gas and haze preventing mask, wherein the cotton fabrics are subjected to water repellent treatment, and the water repellent agent is organic silicon or organic fluorine; the nano titanium dioxide is nano titanium dioxide dispersion liquid and comprises the following components in parts by weight: 1 part of cross-linking agent, 4 parts of dispersion stock solution and 50 parts of deionized water, wherein the cross-linking agent is acrylate, and the dispersion stock solution comprises the following components in parts by weight: 1 part of nano titanium dioxide particles, 2 parts of a compound dispersing agent and 97 parts of deionized water, wherein the compound dispersing agent is prepared by compounding 2 kinds of sodium lignosulphonate, sodium dodecyl benzene sulfonate, sodium laurate, triethanolamine, tween 80, sodium tripolyphosphate, ammonium polyacrylate and sodium hexametaphosphate in equal amount.
Preferably, the outer surface layer adopts cotton fabric to load the nano titanium dioxide, and the loading process comprises the following steps:
according to the weight, 1 part of nano titanium dioxide particles, 2 parts of compound dispersing agent and 97 parts of deionized water are dispersed for 10min by an ultrasonic cleaner to prepare nano titanium dioxide dispersion stock solution, then the nano titanium dioxide dispersion stock solution, a cross-linking agent and the deionized water are uniformly stirred in a ratio of 4:1:50 by weight to prepare nano titanium dioxide dispersion solution, then the cotton fabric subjected to water repellent finishing is treated by a two-dipping two-rolling mode (the bath ratio is 1: 20), and the outer surface layer fabric is obtained by drying.
Preferably, antifog haze gauze mask of preventing automobile exhaust, its characterized in that antifog haze's middle filter layer adopts polypropylene to glue non-woven fabrics, static electret polypropylene melt-blown non-woven fabrics, activated carbon fiber layer, polypropylene and glues four layers of complex and form, and wherein activated carbon fiber layer is activated carbon fiber, the carbon monoxide elimination agent is one or more than one in hemoglobin, heme chloride, diatomaceous earth, cuprous chloride, NaY molecular sieve, CuY molecular sieve, palladium chloride, the manganese oxide mixture.
Preferably, the activated carbon fiber layer in the middle filter layer is loaded with a carbon monoxide elimination agent, and the loading process comprises the following steps:
according to the weight, 2 parts of carbon monoxide remover, 2 parts of vitamin C, 2.5 parts of sodium carbonate, 5 parts of activated carbon fiber and 990.5 parts of deionized water are stirred and adsorbed for 6 hours in water bath at 40 ℃, and then the activated carbon fiber layer is obtained after filtration and drying.
Preferably, the automobile exhaust-gas-preventing haze-preventing mask is characterized in that the inner layer is cotton fabric loaded with tea polyphenol, and the loading step is as follows:
preparing tea polyphenol into a 1-5 wt% tea polyphenol solution, adding cotton fabric (bath ratio is 1:50), adjusting the pH value to 4-6 by using a disodium hydrogen phosphate-citric acid buffer solution, heating to 90 ℃ at an initial temperature of 20-40 ℃ at a speed of 2 ℃/min, keeping the temperature for 60min, and drying to obtain the lining fabric.
Preferably, antifog haze gauze mask of preventing automobile exhaust, inlayer upper portion is provided with the plastic pad piece in its characterized in that, lies in bridge of the nose department when wearing, can prevent that glasses from hazing.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the mask for preventing automobile exhaust and haze, the three-layer filtering structure of the mask can ensure that main harmful ingredients in the automobile exhaust can be efficiently filtered, and meanwhile, the haze can be efficiently filtered.
FIGS. 1-3 show an anti-haze mask for preventing automobile exhaust, which is a three-layer structure comprising an outer surface layer 1, a middle filter layer 6 and an inner layer 5; the outer surface layer of the mask is formed by splicing and sewing cotton fabrics loaded with nano titanium dioxide; a trademark 3 is stuck to the right side of the outer surface layer of the mask; ear wires penetrate through two ends of the mask, and a plastic pig nose buckle 2 is arranged on each ear wire and used for adjusting the size of each ear wire of the mask; the inner layer 5 of the mask is formed by sewing cotton fabrics loaded with tea polyphenol; the middle filter layer 6 of the mask is arranged in an interlayer between the inner layer 5 and the outer layer 1 of the mask through an opening; the filter element 6 of the mask is formed by thermally bonding and reinforcing a polypropylene spun-bonded non-woven fabric 7, an electrostatic electret polypropylene melt-blown non-woven fabric 8, an activated carbon fiber layer 9 and a polypropylene spun-bonded non-woven fabric 10; the activated carbon fiber layer 9 is loaded with a carbon monoxide elimination agent.
After the scheme is adopted, the mask with the three-layer filtering structure can ensure that main harmful ingredients in automobile exhaust can be efficiently filtered, and meanwhile haze can be efficiently filtered.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The utility model provides a prevent antifog haze gauze mask of automobile exhaust, a serial communication port, the gauze mask body is extexine (1), middle filter layer (6), interior nexine (5) from outer to interior in proper order, the extexine is the cotton fabric of load nanometer titanium dioxide, middle filter layer (6) from outer to interior in proper order for polypropylene spunbonded nonwoven (7), static electret polypropylene melt-blown nonwoven (8), activated carbon fiber layer (9), polypropylene spunbonded nonwoven (10), wherein activated carbon fiber layer load has the carbon monoxide elimination agent, interior nexine (5) are cotton fabric load tea polyphenol, the ear line has been worn at the both ends of gauze mask, and is equipped with a plastics pig nose on the ear line and detains (2) for adjust gauze mask ear line size, polypropylene spunbonded nonwoven (7), static electret polypropylene melt-blown nonwoven (8), activated carbon fiber layer (9), The polypropylene spun-bonded nonwoven fabric (10) is consolidated by thermal bonding to form the filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129824.9U CN204635136U (en) | 2015-03-07 | 2015-03-07 | A kind of anti-vehicle exhaust haze mouth mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129824.9U CN204635136U (en) | 2015-03-07 | 2015-03-07 | A kind of anti-vehicle exhaust haze mouth mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204635136U true CN204635136U (en) | 2015-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520129824.9U Expired - Fee Related CN204635136U (en) | 2015-03-07 | 2015-03-07 | A kind of anti-vehicle exhaust haze mouth mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204635136U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109288167A (en) * | 2018-10-01 | 2019-02-01 | 江苏师范大学 | A kind of haze mask |
| CN109349704A (en) * | 2018-10-31 | 2019-02-19 | 名典上品（北京）信息技术有限公司 | A kind of protective mask |
-
2015
- 2015-03-07 CN CN201520129824.9U patent/CN204635136U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109288167A (en) * | 2018-10-01 | 2019-02-01 | 江苏师范大学 | A kind of haze mask |
| CN109349704A (en) * | 2018-10-31 | 2019-02-19 | 名典上品（北京）信息技术有限公司 | A kind of protective 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: 20150916 Termination date: 20160307 |