CN102258833A - Dustproof mask - Google Patents
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- CN102258833A CN102258833A CN2011101908320A CN201110190832A CN102258833A CN 102258833 A CN102258833 A CN 102258833A CN 2011101908320 A CN2011101908320 A CN 2011101908320A CN 201110190832 A CN201110190832 A CN 201110190832A CN 102258833 A CN102258833 A CN 102258833A
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Abstract
The invention relates to a protection appliance which can prevent or reduce dust in the air from entering respiratory organ of human body. A dustproof mask comprises a face cup and an annular mask, wherein one end of the face cup is butted with one end of the annular mask, the other end of the face cup is provided with a gas filter, the other end of the annular mask is fitted with the face part at the periphery of a mouth and a nose of a user, and the other end of the annular mask is sequentially provided with a nose fitting part, a cheekbone maxilla junction fitting part, a maxilla fitting part, a mouth corner fitting part and a mandible fitting part from top to bottom. The dustproof mask provided by the invention is comfortable, has good dustproof effect and can be repeatedly utilized, and the problems that the tradition dustproof mask with good filtering effect has less comfortableness and can not be repeatedly used can be solved.
Description
Technical field
The present invention relates to prevent or reduce the keeping device that dust in the air enters the human body respiration organ, relate in particular to a kind of anti-dust respirator.
Background technology
In order to prevent or to reduce the airborne dustproof respiratory apparatus that enters human body, especially in the environment of air purity difference, people are by wearing mouth mask or dust mask is protected.
Common mouth mask commonly used is for to be made into mask body with the multilayer gauze, edge at mask body is provided with frenulum, mask body covers on user's the nose and mouth during use, frenulum ties up on the ear mask body is fixed, but this kind mouth mask mostly is disposable, utilize rate variance, the mask main body edge is poor with facial sealing effectiveness, the poor filtration effect of mask body, so the anti-dust performance of mouth mask is poor.
In China Patent No. is ZL012691143, name is called in the patent documentation of " health and epidemic prevention anti-dust respirator " and discloses a kind of mouth mask, this mouth mask comprises cover body and is arranged on the frenulum of cover body both sides, be provided with the mouth pad that is made with cotton yarn in the inner central section position of cover body, the periphery of mouth pad is made with silica gel, and the middle part of mouthful pad is filled with activated carbon.By mouthful pad being set in the middle of the cover body and filling activated carbon, the filter effect of face shield is improved, but the cover body edge fail to improve with facial sealing, so the dustproof effect of mouth mask is still not good enough.
For the cover body that makes mouth mask can fit in face, the mouth mask that has passes through at built-in iron plate in the edge of cover body or iron wire, during use, utilize the flexible of iron plate or iron wire, make iron plate or iron wire flexural deformation and be fitted on user's the nose, this kind mode can only locally change cover body and facial applying effect, and the whole structure of applying is still not good, and through after curved the scratching repeatedly, the applying effect can further deterioration.
In China Patent No. is ZL032440804, name is called in the patent documentation of " removable sealed air cushion mouth mask " and discloses a kind of mouth mask, this mouth mask comprises air cushion and cover body, the both sides of cover body are provided with ear and ventilating part, ventilating part is provided with passage, and passage is provided with the cavernous body that matches.During use by cushion seals be fitted in nose and mouth around, gas enters cover body after cavernous body filters inner and sucked by the user.Mouth mask in this patent all has tangible progress than above-mentioned various mouth masks on the strainability of cover body and cover body and facial sealing, so filter effect has tangible lifting.But the mouth mask in this patent also has following not enough: when sealing with the form of air cushion, in case when the air cushion breakage occurring and causing gas to leak, then sealing can almost completely be lost, so poor reliability; The shape of air cushion does not design at face's structure of human body, arriving the cover body edge all fits together with face, then have only by increasing air cushion and be pressed in power on the face, air cushion can both be deformed to everywhere be fitted on the face, certainly will cause facial suffered extruding force weight to differ so everywhere, cause the user that sense of discomfort is arranged, when wearing for a long time, redness can appear in stressed heavy position, as in the summer of sweltering heat, when serious even inflammation can occur.
Summary of the invention
That the present invention aims to provide is a kind of not only comfortable, dustproof effect but also good anti-dust respirator, the problem of comfortableness difference during existing use of anti-dust respirator that has solved existing good filtration effect.
Another object of the present invention provides a kind of replaceable filter element, uses repeatedly with realization, solves existing mouth mask and can only use once the problem that use cost is high.
Above technical problem solves by following technical proposal: a kind of anti-dust respirator, comprise face cup and annular face shield, one end of described cup and an end of described annular face shield are docking together, the other end of described cup is provided with gas-filtering device, the other end of described annular face shield is arranged to fit with user's mouth and perirhinal face, the other end of described annular face shield is disposed with the nose sticking part from the top down, cheekbone maxilla junction sticking part, the maxilla sticking part, corners of the mouth sticking part and mandibular sticking part, described nose sticking part is used for laterally striding across user's bridge of the nose bone and extends the nose that is fitted in the user downwards along bridge of the nose bone, described cheekbone maxilla junction sticking part is used for beginning to extend the facial left and right sides that is fitted in the user in both sides to the left and right along user's cheekbone maxilla junction from described nose sticking part termination, described maxilla sticking part is used for the two ends, the left and right sides that begin to extend on the maxilla upper lip that is fitted in the user from described cheekbone maxilla junction sticking part clearing end downwards, described mandibular sticking part is used between user's chin and lower lip and up is fitted in user's face along user's the mouth left and right sides, and described corners of the mouth sticking part is used for extending and being fitted in along user's the corners of the mouth user's facial corners of the mouth place.During use by frenulum or other parts with on the novel face that is fixed on the user of this use, the zone that a end away from the face cup of annular face shield is fitted on user's the face and makes nose and mouth all be positioned at annular face shield to be surrounded, the face cup, form the cavity of a sealing between annular face shield and the face, air can only pass in and out this cavity through the gas-filtering device on the face cup, the annular face shield is designed to by the nose sticking part with a facial end of fitting, cheekbone maxilla junction sticking part, the maxilla sticking part, corners of the mouth sticking part and mandibular sticking part are connected in sequence, corresponding sticking part is fitted on the facial corresponding position so that annular face shield and face are complementary, the stressed basically identical that respectively goes reaches the purpose of improving the comfortableness when using.
As preferably, described annular face shield be away from the end face of an end of described cup to away from the end face of the direction projection of described cup, the other end to ring channel structures away from the direction depression of described cup, described cup is connected on the lateral wall of described annular face shield.Ring surface is covered with counts ring channel structures, can keep annular face shield and face that bigger contact-making surface is arranged, and deadweight simultaneously is lighter, good springiness; Just can make the novel face cup that is fixed on of this use from the then less power of heavy and light, thus the comfortableness when this kind version of annular face shield can be used further optimized, good springiness, annular face shield can adapt to the otherness of the face of Different Individual better.
As preferably, the outer surface of the diapire of described annular face shield and the outer surface of madial wall all are the arcwall face of projection, and the bending radius of the cross section of the outer surface of the madial wall of described nose sticking part is greater than the bending radius of the cross section of the outer surface of the madial wall of described mandibular sticking part.Arcwall face makes when annular face shield is fitted in face not can tingle, further improves the comfortableness when using; Fat deposit on the nose usually can be thinner than the fat deposit at position between chin and the lower lip; and nose is than smooth more in addition between chin and the lower lip; so " bending radius of the cross section of the outer surface of the madial wall of described nose sticking part is greater than the bending radius of the cross section of the outer surface of the madial wall of described mandibular sticking part " can make the nose sticking part be fitted on the nose better; the mandibular sticking part is fitted on the face between chin and the lower lip better, and comfortableness is improved.
As preferably, the bending radius of the cross section of the outer surface of the diapire of described nose sticking part is less than the bending radius of the cross section of the outer surface of the diapire of described mandibular sticking part, and the arc length of the cross section of the outer surface of the diapire of described nose sticking part is less than the arc length of the cross section of the outer surface of the diapire of described mandibular sticking part.Be complementary with the characteristics of human body of corresponding position, improve the comfortableness when using.
As preferably, the end face away from described cup one end of described nose sticking part tilts towards described cup.Be complementary with the characteristics of human body of corresponding position, improve the comfortableness when using.
As preferably, described corners of the mouth sticking part from the distance of described cup greater than the distance of described nose sticking part from described cup, described corners of the mouth sticking part from the distance of described cup greater than the distance of described mandibular sticking part from described cup.After the corners of the mouth of human body leaned on more than the position between nose and chin and the lower lip, each position that this kind design can make annular face shield was complementary with the corresponding position of face better, and the comfortableness when annular face shield is fitted in face is better.
As preferably, the rearward end of described cup overlap joint also is fixed on the leading section of described annular face shield.Improve the bonding strength between annular face shield and the face cup.
As preferably, the faying surface of described cup and described annular face shield is provided with projection and the pit that complements one another, and described pit covers on the described projection.When being subjected to the pulling force of subtend between annular face shield and the face cup, projection and pit can play the effect of clasp joint, and the bonding strength between annular face shield and the face cup is good, are difficult between the two breaking away from, can not produce to split in the junction and the phenomenon that causes anti-dust performance to descend of leaking gas produces, better reliability.
As preferably, the lap-joint of described cup and described annular face shield is provided with the overlap joint step that overlaps that complements one another.Improve the flatness of outer surface of the present invention.
As preferably, described gas-filtering device comprises that an end opening one end is provided with the removable filter layer that the framework of air-vent, lid were established and were fixed in the frame lid that is provided with air-vent on the openend of framework and be positioned at described framework.During use, air filters by filter course, play dustproof effect, cooperate framework filter course to be fixed filter course difficult drop-off, good reliability by the frame lid, filter course is dismountable, so filter course can be pulled down and change, and makes the present invention's other parts except that filter course to reuse, reduce use cost.
The present invention has following advantage, and during use, air can only be through the filter turnover, so anti-dust performance is good; The end that annular face shield is connected with user's face is designed to be connected in sequence by nose sticking part, cheekbone maxilla junction sticking part, maxilla sticking part, corners of the mouth sticking part and mandibular sticking part, has improved the comfortableness when using.
Description of drawings
Fig. 1 is the structural representation of split state of the present invention;
Fig. 2 is the backsight of Fig. 1 and the schematic diagram of filter having been made transparent processing;
Fig. 3 is A-A cross-sectional schematic of Fig. 2;
Fig. 4 is the enlarged diagram at the C place of Fig. 3;
Fig. 5 is the enlarged diagram at the B place of Fig. 3;
Fig. 6 is user mode of the present invention and the schematic diagram of having made transparent processing.
Among the figure: face cup 1, the second overlap joint step 11, projection 12, annular face shield 2, nose sticking part 21, the cross section 211 of the outer surface of the madial wall of nose sticking part, the rear end face 212 of nose sticking part, the cross section 213 of the outer surface of the diapire of nose sticking part, cheekbone maxilla junction sticking part 22, maxilla sticking part 23, corners of the mouth sticking part 24, mandibular sticking part 25, the cross section 251 of the outer surface of the madial wall of mandibular sticking part, the cross section 252 of the outer surface of the diapire of mandibular sticking part, lateral wall 26, the first overlap joint steps 261 of annular face shield, the outer surface 27 of the diapire of annular face shield, the outer surface 28 of the madial wall of annular outer cover, gas-filtering device 3, framework 31, frame air-vent 311, frame screw thread 312, frame lid 32, frame cap air-vent 321, frenulum is installed ear 322, frame cap screw thread 323, tubular body 324, end wall 325, shirt rim 326, filter course 33, welding is with 4, and framework and frame cover formed space 5, frenulum 6, nose 71, cheekbone 72, maxilla 73, upper lip 74, chin 75, lower lip 76, the corners of the mouth 77.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
Referring to Fig. 1, a kind of anti-dust respirator comprises face cup 1 and annular face shield 2, and the rear end of face cup 1 is the rim of a cup place end of face cup, and the front end of annular face shield 2 is docked on the rear end of face cup 1, and the front end of face cup 1 is provided with gas-filtering device 3.Gas-filtering device 3 comprises framework 31, frame lid 32 and filter course 33.The front end of framework 31 is an opening, and the rear end of framework 31 is that the bottom surface is provided with a plurality of frame air-vents 311.Frame air-vent 311 is a square opening.The inside of frame air-vent 311 connected surface cups 1 and the inside of framework 31.Frame lid 32 comprises tubular body 324 and end wall 325, and end wall 325 is provided with frame cap air-vent 321.On the edge of end wall 325, be provided with the shirt rim 326 that is looped around tubular body 324 outsides.Frame cap air-vent 321 is a circular port, and frame cap air-vent 321 is communicated with the inside of tubular body 324.Frame cap air-vent 321 is littler than frame air-vent 311, the density of frame cap air-vent 321 is bigger than the density of frame air-vent 311, the cross-sectional area sum of frame cap air-vent 321 with the difference of the cross-sectional area sum of frame air-vent 311 smaller or equal to 1 square centimeter.The two area sum is more or less the same, and is little to the circulation influence of air turnover, unobstructed during turnover gas.The diapire of framework 31 is designed to the version of grid hole, and is good to the support effect of filter course 33, filter course 33 not yielding with the contact-making surface framework diapire.Frame cap air-vent 321 is designed to small and dense version, can play the effect of filter just to air, filter course 33 can directly not expose in air, before air enters framework 31, the especially oarse-grained dust adhesion of part dust is arranged on frame lid 32, to prolong the service life of filter course 33, the dust on the frame lid 32 regularly washes and gets final product.The front end face of end wall 325 is protruding forward spherical crown surface.It is good to be designed to the spherical crown surface security, specious.On the left and right sides of the outer surface of shirt rim, respectively be provided with a frenulum ear 322 is installed.On the left and right sides of the inside surface of side wall of framework 31, respectively be provided with the frame screw thread 312 of a projection, on the left and right sides of the outer surface of the sidewall of tubular body 324, respectively be provided with the frame cap screw thread 323 of a projection, cooperate frame cap screw threads 323 that frame lid 32 is fixed on the framework 31 by frame screw thread 312.In the present embodiment for the connection that two threads engaged realize frame cover and frame body to be set, be provided with more than two also passable, the bar number more than two and be evenly distributed on framework and the sidewall of frame lid on, then can keep better the frame lid reposefully lid be located on the framework.Annular face shield 2 adopts the silica gel quadric injection moulds to form, and is soft, comfortable, air-tightness is good.Face cup 1 adopts polycarbonate injection moulded to form, and is pellucidity, light weight, high temperature resistant.Not yielding.
Referring to Fig. 2, annular face shield 2 left-right symmetry.The rear end of annular face shield 2 is disposed with nose sticking part 21, cheekbone maxilla junction sticking part 22, maxilla sticking part 23, corners of the mouth sticking part 24 and mandibular sticking part 25 from the top down.
Referring to Fig. 3, annular face shield 2 is the ring channel structures that rear end face is protruding backward, front end face caves in backward.Face cup 1 is connected on the lateral wall 26 of annular face shield of ring channel structures.The outer surface 27 of the diapire of annular face shield is the arcwall face of projection, the outer surface 28 of the madial wall of annular outer cover is the arcwall face of projection, the rear end face 212 of nose sticking part tilts towards face cup 1, corners of the mouth sticking part 24 from the distance of face cup greater than the distance of nose sticking part 21 from the face cup, corners of the mouth sticking part 24 from the distance of face cup greater than the distance of mandibular sticking part 25 from the face cup, the bending radius of the cross section 211 of the outer surface of the madial wall of nose sticking part is greater than the bending radius of the cross section 251 of the outer surface of the madial wall of mandibular sticking part, the bending radius of the cross section 213 of the outer surface of the diapire of nose sticking part is less than the bending radius of the cross section 252 of the outer surface of the diapire of mandibular sticking part, and the arc length of the cross section 213 of the outer surface of the diapire of nose sticking part is less than the arc length of the cross section 252 of the outer surface of the diapire of mandibular sticking part.Filter course 33 is built in the tubular body 324, and the side surface of filter course 33 fits tightly on the inner surface of tubular body 324.All air could pass in and out in the face cup 1 after must filtering through filter course 33.Filter course 33 is made for sponge.First-selected medical sponge.Filter course 33 is laminar.
Referring to Fig. 4, the inner surface of the rear end of face cup 1 is provided with the second overlap joint step 11.The second overlap joint step 11 is provided with projection 12.The outer surface of the front end of the lateral wall 26 of annular face shield is provided with the first overlap joint step 261.The first overlap joint step 261 is provided with and projection 12 pits that match, and the pit cover is buckled on the projection 12.The width of the first overlap joint step 261 equates that with the width of the second overlap joint step 11 the first overlap joint step 261 and the second overlap joint step 11 overlap fully overlappingly.The faying surface of the first overlap joint step 261 and the second overlap joint step 11 bonds together by the method for heat fused.The distance of the outer surface of the lateral wall 26 of the annular face shield of the first overlap joint step, 261 distances equals the thickness of the second overlap joint step 11, and the second overlap joint step 11 equals the thickness of the first overlap joint step 161 apart from the distance of the inner surface of face cup 11.She Ji benefit is like this: the surfaces externally and internally flatness of the junction of ring-type face shield and face cup 1 is good.On the surfaces externally and internally of the junction of the lateral wall 26 of annular face shield and face cup 1, all be provided with groove.After annular face shield 2 and face cup 1 the two heat fusing bond together, carry out reinforcement of weld along this groove again, be with 4 thereby on the surfaces externally and internally of the junction of annular face shield 2 and face cup 1, form welding.Make that the connection between annular face shield 2 and the face cup 1 is firm more in addition, to prolong service life of the present invention.
Referring to Fig. 5, framework 31 is structure as a whole with face cup 1.Inside, the distal process that one end of framework 31 is positioned at the face cup goes out the outside with face cup 1.She Ji benefit is like this: it is little to take up room, and is convenient to deposit; Center of gravity is less near, required when the wearing power of annular face shield, and it is better not only to wear convenience but also comfortableness.Tubular body 324 is positioned at the inside of framework 31, and the rear end face of shirt rim 326 is connected on the front end face of framework 31.The equal and opposite in direction of the size of shirt rim 326 and framework 31.Like this design get well for, foreign matters such as dust can not enter into framework and frame and cover in the formed space 5, cause blocking between frame lid 32 and the framework 31, can be unlocked like a cork when not opening for a long time so frame covers 32 yet.
Referring to Fig. 6, during use, cooperate frenulum that ear 322 is installed by frenulum 6 and the present invention is fixed on user's the face, the rear end of annular face shield and user's mouth and perirhinal face fit.Be specially: nose sticking part 21 laterally strides across user's bridge of the nose bone and is fitted on user's the nose 71 along the extension downwards of bridge of the nose bone, cheekbone maxilla junction sticking part 22 terminations from nose sticking part 21 begin to be fitted on user's the facial left and right sides along the junction both sides extension to the left and right of user's cheekbone 72 and maxilla 73, maxilla sticking part 23 begins to extend on the two ends, the left and right sides of the upper lip 74 that is fitted in the user downwards on maxilla 73 from the clearing end of cheekbone maxilla junction sticking part 22, mandibular sticking part 25 is between user's chin 75 and lower lip 76 and up be fitted in user's face along user's the mouth left and right sides, and corners of the mouth sticking part 24 extends and be fitted in user's facial corners of the mouth place along user's the corners of the mouth 77.Air can only advance to be in the enclosure space that annular face shield 2, face cup 1 and user's face are surrounded through gas-filtering device 3.
Be arranged in the embodiment of the figure that draws at another, gas-filtering device 33 is made of the filter course that is opened in the through hole on the face cup 1 and removably be enclosed on this through hole.This kind project organization is simple.
Claims (10)
1. anti-dust respirator, comprise face cup and annular face shield, it is characterized in that, one end of described cup and an end of described annular face shield are docking together, the other end of described cup is provided with gas-filtering device, the other end of described annular face shield is arranged to fit with user's mouth and perirhinal face, the other end of described annular face shield is disposed with the nose sticking part from the top down, cheekbone maxilla junction sticking part, the maxilla sticking part, corners of the mouth sticking part and mandibular sticking part, described nose sticking part is used for laterally striding across user's bridge of the nose bone and extends the nose that is fitted in the user downwards along bridge of the nose bone, described cheekbone maxilla junction sticking part is used for beginning to extend the facial left and right sides that is fitted in the user in both sides to the left and right along user's cheekbone maxilla junction from described nose sticking part termination, described maxilla sticking part is used for the two ends, the left and right sides that begin to extend on the maxilla upper lip that is fitted in the user from described cheekbone maxilla junction sticking part clearing end downwards, described mandibular sticking part is used between user's chin and lower lip and up is fitted in user's face along user's the mouth left and right sides, and described corners of the mouth sticking part is used for extending and being fitted in along user's the corners of the mouth user's facial corners of the mouth place.
2. anti-dust respirator according to claim 1, it is characterized in that, described annular face shield be away from the end face of an end of described cup to away from the end face of the direction projection of described cup, the other end to ring channel structures away from the direction depression of described cup, described cup is connected on the lateral wall of described annular face shield.
3. anti-dust respirator according to claim 2, it is characterized in that, the outer surface of the diapire of described annular face shield and the outer surface of madial wall all are the arcwall face of projection, and the bending radius of the cross section of the outer surface of the madial wall of described nose sticking part is greater than the bending radius of the cross section of the outer surface of the madial wall of described mandibular sticking part.
4. anti-dust respirator according to claim 3, it is characterized in that, the bending radius of the cross section of the outer surface of the diapire of described nose sticking part is less than the bending radius of the cross section of the outer surface of the diapire of described mandibular sticking part, and the arc length of the cross section of the outer surface of the diapire of described nose sticking part is less than the arc length of the cross section of the outer surface of the diapire of described mandibular sticking part.
5. according to claim 1 or 2 or 3 or 4 described anti-dust respirators, it is characterized in that the end face away from described cup one end of described nose sticking part tilts towards described cup.
6. according to claim 1 or 2 or 3 or 4 described anti-dust respirators, it is characterized in that, described corners of the mouth sticking part from the distance of described cup greater than the distance of described nose sticking part from described cup, described corners of the mouth sticking part from the distance of described cup greater than the distance of described mandibular sticking part from described cup.
7. according to claim 1 or 2 or 3 or 4 described anti-dust respirators, it is characterized in that the rearward end overlap joint of described cup also is fixed on the leading section of described annular face shield.
8. anti-dust respirator according to claim 7 is characterized in that, the faying surface of described cup and described annular face shield is provided with projection and the pit that complements one another, and described pit covers on the described projection.
9. anti-dust respirator according to claim 7 is characterized in that, the lap-joint of described cup and described annular face shield is provided with the overlap joint step that overlaps that complements one another.
10. according to claim 1 or 2 or 3 or 4 described anti-dust respirators, it is characterized in that described gas-filtering device comprises that an end opening one end is provided with the removable filter layer that the framework of air-vent, lid were established and were fixed in the frame lid that is provided with air-vent on the openend of framework and be positioned at described framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110190832 CN102258833B (en) | 2011-07-08 | 2011-07-08 | Dustproof mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110190832 CN102258833B (en) | 2011-07-08 | 2011-07-08 | Dustproof mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102258833A true CN102258833A (en) | 2011-11-30 |
| CN102258833B CN102258833B (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110190832 Active CN102258833B (en) | 2011-07-08 | 2011-07-08 | Dustproof mask |
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| CN (1) | CN102258833B (en) |
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| CN103933680A (en) * | 2013-08-29 | 2014-07-23 | 左国刚 | Fixed mask |
| CN103976484A (en) * | 2014-04-18 | 2014-08-13 | 尚诚德 | Haze-proof mask |
| CN104540553A (en) * | 2012-08-10 | 2015-04-22 | 3M创新有限公司 | Refill filtering face-piece respirator |
| CN104799452A (en) * | 2015-04-24 | 2015-07-29 | 张迎秋 | Ring-shaped filter type dustproof lung mask |
| CN105747321A (en) * | 2016-04-29 | 2016-07-13 | 宋搏 | Gauze mask |
| CN106621105A (en) * | 2017-01-10 | 2017-05-10 | 成都朵猫文化传播有限公司 | Industrial dustproof half mask |
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| CN107405511A (en) * | 2014-11-28 | 2017-11-28 | 卡莱流体技术有限公司 | Gas feeding vizard |
| CN109833186A (en) * | 2017-11-28 | 2019-06-04 | 财团法人工业技术研究院 | Adjustable cuirass |
| CN109846115A (en) * | 2019-03-18 | 2019-06-07 | 湖北雄鹰九五零七服饰有限公司 | A kind of mask and its processing technology |
| CN112657079A (en) * | 2021-01-25 | 2021-04-16 | 王永明 | Closed facing model of buckle cover |
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| CN104540553B (en) * | 2012-08-10 | 2017-09-08 | 3M创新有限公司 | Refill filter mask respirator |
| CN104540553A (en) * | 2012-08-10 | 2015-04-22 | 3M创新有限公司 | Refill filtering face-piece respirator |
| CN103933680B (en) * | 2013-08-29 | 2015-06-10 | 左国刚 | Fixed mask |
| CN103933680A (en) * | 2013-08-29 | 2014-07-23 | 左国刚 | Fixed mask |
| CN103976484A (en) * | 2014-04-18 | 2014-08-13 | 尚诚德 | Haze-proof mask |
| CN103976484B (en) * | 2014-04-18 | 2015-12-02 | 尚诚德 | Haze mouth mask |
| CN107405511A (en) * | 2014-11-28 | 2017-11-28 | 卡莱流体技术有限公司 | Gas feeding vizard |
| CN104799452A (en) * | 2015-04-24 | 2015-07-29 | 张迎秋 | Ring-shaped filter type dustproof lung mask |
| CN105747321A (en) * | 2016-04-29 | 2016-07-13 | 宋搏 | Gauze mask |
| CN105747321B (en) * | 2016-04-29 | 2018-12-04 | 宋搏 | Mask |
| CN106723506A (en) * | 2016-12-01 | 2017-05-31 | 深圳市美好创亿医疗科技有限公司 | Mask body and preparation method thereof |
| CN106621105A (en) * | 2017-01-10 | 2017-05-10 | 成都朵猫文化传播有限公司 | Industrial dustproof half mask |
| CN109833186A (en) * | 2017-11-28 | 2019-06-04 | 财团法人工业技术研究院 | Adjustable cuirass |
| US10940083B2 (en) | 2017-11-28 | 2021-03-09 | Industrial Technology Research Institute | Adjustable respirator shell |
| CN109833186B (en) * | 2017-11-28 | 2022-04-19 | 财团法人工业技术研究院 | Adjustable corsage |
| CN109846115A (en) * | 2019-03-18 | 2019-06-07 | 湖北雄鹰九五零七服饰有限公司 | A kind of mask and its processing technology |
| CN112657079A (en) * | 2021-01-25 | 2021-04-16 | 王永明 | Closed facing model of buckle cover |
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