CN104839910A - Single-point welding mask - Google Patents
Single-point welding mask Download PDFInfo
- Publication number
- CN104839910A CN104839910A CN201510262025.3A CN201510262025A CN104839910A CN 104839910 A CN104839910 A CN 104839910A CN 201510262025 A CN201510262025 A CN 201510262025A CN 104839910 A CN104839910 A CN 104839910A
- Authority
- CN
- China
- Prior art keywords
- ear
- fastener
- mouth mask
- welded type
- type mouth
- 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
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to a single-point welding mask comprising a mask body and ear straps. The mask body comprises a surrounding edge attaching to the face; the surrounding edge facing out from the lateral edge extends to the middle, forming a protrusion made of air permeable material; the protrusion is provided with space for holding the nose and mouth; a sizing member is disposed between the protrusion and the surrounding edge; two welding points, close to the lateral edge of the surrounding edge, are provided on left and right sides of a line of a mid-point of the sizing member and a central point of the protrusion, respectively; a fastener is fixed to each welding point; two ends of each fastener are provided with a first fastening part and a second fastening part; one end of each ear strap is movably connected with the corresponding first fastening part, and the other end thereof is movably connected with the corresponding second fastening part. The two ear straps are provided and can be connected with the mask body with only one welding point; the process is simple, the structure is scientific and reasonable, and the cost is low; the length of each ear strap is adjustable, and comfort of use is high.
Description
Technical field
The present invention relates to mouth mask technical field, particularly a kind of technique be simple, cost is low, the single-point welded type mouth mask that scientific and reasonable for structure, security is good.
Background technology
The mouth mask that existing market is sold is various, great majority all adopt two pads to fix ear-hang band, as shown in Figure 1, adopt such technical scheme, its Advantageous Effects brought is that the connection of ear-hang band is more stable, difficult drop-off, its side effect also brought also is obvious, during use, ear-hang band not easily regulates length, and ear is strangled, and has fatigue and pain; In addition, the mouth mask of this structure adopts solder joint more, and add the cost of mouth mask, manufacture craft is also more complicated simultaneously.
In Chinese patent literature CN104190013A, disclose a kind of mouth mask, comprising the mask main body for filtering, being connected hooking part for being hooked in ear with mask main body, described mouth mask is also provided with the seal for strengthening mouth mask sealing, seal can prevent dust, haze from entering from the gap of mouth mask and face, improves the result of use of mouth mask; But this mouth mask uses in both sides two pads to be connected and fixed the ear-hang band of length respectively, during use, can not regulate according to different users, too increase manufacture craft simultaneously.A kind of mouth mask is disclosed in Chinese patent literature CN104287223A, comprise for by the oral area of human body, nose and shade body that outside atmosphere is isolated, be connected to shade body be used for maintaining shade body and human body oral area, the relative fixed range of nose connector, be connected to shade body and be used for catering to the pressure nose bar of human body nose, it is characterized in that: described mouth mask is provided with the filter of through shade body, and described filter is asymmetricly arranged at shade body.What this mouth mask still adopted is the connector being arranged fixed range relative to nose in the both sides of mouth mask by two pads, thus also exists and can not regulate according to different users, easily causes the ear of user to be strangled, has fatigue and pain.
Therefore, need now to develop a kind of can regulate ear-hang strip length and the simple mouth mask of technique.
Summary of the invention
The technical problem to be solved in the present invention is, provides the single-point welded type mouth mask that a kind of technique is simple, scientific and reasonable for structure, cost is low, security is good.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is, this single-point welded type mouth mask, comprise mask body and ear-hang band, described mask body includes the surrounding edge being close to face, from edge outwards and extend to form the protuberance be made up of poromeric material to centre, this protuberance has the spatial accommodation holding nose and mouth to described surrounding edge; Shaped element is provided with, the line left and right sides of the intermediate point of described shaped element and the central point of protuberance and be respectively arranged with a pad near the edge of described surrounding edge between described protuberance and surrounding edge; Described pad is connected with a fastener, the two ends of described fastener are provided with the first card-tight part and the second card-tight part; One end of described ear-hang band is flexibly connected with the first card-tight part, and the other end is flexibly connected with the second card-tight part; This single-point welded type mouth mask is provided with two ear-hang bands.
Adopt the single-point welded type mouth mask of said structure, owing to having surrounding edge structure, make this mouth mask tightly can touch face, avoid sand and dust and enter mouth and nose from the side gap of mouth mask, security is good; The protuberance be made up of poromeric material, arranges protuberance, makes air carry out filtration at this protuberance and breathes freely, and be arranged to protuberance, also increase vapor permeation area; Protuberance has the spatial accommodation holding nose and mouth, and in this spatial accommodation, the facial human body such as mouth and nose is not easily squeezed, and breathes smooth and easy; The effect of shaped element is to form definite shape for being sleeved on the bridge of the nose, makes mouth mask upper end to glide along nose and to cause dust to enter mouth and nose; The line left and right sides of the intermediate point of described shaped element and the central point of protuberance and be respectively arranged with a pad near the edge of described surrounding edge, namely mouth mask has two pads, and pad is connected with a fastener, each fastener is only fixedly connected with a pad, relative to existing two pad mouth masks, decrease a pad, achieve and only have a pad, just ear-hang band and mask body can be coupled together, technique is simple, scientific and reasonable for structure, cost is low; In addition, the two ends of fastener are provided with the first card-tight part and the second card-tight part; One end of described ear-hang band is flexibly connected with the first card-tight part, and the other end is flexibly connected with the second card-tight part, and fastener is flexibly connected with ear-hang band, gauche form arranges ear-hang band, add the extendable room of ear-hang band, user can regulate ear-hang strip length, and comfort is high.
Further improvement is, described shaped element is arc depression from intermediate point toward both sides, adopts this structure, shaped element can be adapted with the bridge of the nose in use, play better styling, not easily landing.
Further improvement is, the also company's of being provided with fastener on described ear-hang band, and described one end connecting fastener has blind hole, and a wherein ear-hang band of this single-point welded type mouth mask makes to connect fastener through blind hole and hangs; The described other end of fastener of connecting also has hook, another ear-hang band for this single-point welded type mouth mask of hook make described surrounding edge tightly touch face.
Adopt ear-hang band to hang through blind hole and connect fastener, make user can the position of the company's of adjustment fastener snapping at any time, also can not drop by the company's of making fastener because of the rotation of head, simultaneously, such mode also makes when without mouth mask, and connecting fastener can not lose, and that causes in use is not convenient; Connect the other end of fastener and hook be set, make by connect two ear-hang bands that fastener connects can by the surrounding edge of mouth mask tightly touch face.
Further improvement is, the edges at two ends place of described even fastener is all in circular arc, and be affectedly bashful more smoothly, not easily scratch hand, better appearance is succinct.
Further improvement is, on described surrounding edge and be positioned at spatial accommodation be provided with one for absorbing sweat face paste circle; Described is pasted between circle with described mask body and has gap, described shaped element position and be positioned at this gap and be provided with nose pad.
The effect that circle has absorbing sweat is pasted in face, makes facial itch to be caused uncomfortable because of sweat by the position that mouth mask covers, moreover face subsides circle is also further to be blocked in outside mouth mask by dust, has protected the safety of human body; The face that nose pad is arranged on is pasted between circle and mask body, makes face paste circle and first absorbs sweat, the sticky of nose pad can not be caused to make cunning soaked with sweat, ensure that it pads nose beam action, prevent mouth mask from gliding.
Further improvement is, described first card-tight part is all identical with the structure of the second card-tight part; Described first card-tight part has vertical slot and transverse groove, and described vertical slot vertically extends inwardly to clearing end by the breach at described fastener edge and formed, and described transverse groove is formed by the clearing end of described vertical slot is laterally extending to both sides.
Adopt such structure, position between fastener and ear-hang band adjust and clamping the most convenient, that is: one end of ear-hang band enters transverse groove by vertical slot and is clamped by the first card-tight part, and equally, the other end of ear-hang band also enters transverse groove by vertical slot and clamped by the second card-tight part; And the first card-tight part and the second card-tight part are all clamp the flexible connection of ear-hang band, namely ear-hang band applies certain power and still can regulate extension position under this gripping orientation.
Further improvement is, described transverse groove is provided with serrated rim.Transverse groove arranges serrated rim, adds the first card-tight part, relative sliding resistance between the second card-tight part and ear-hang band, is conducive to the first card-tight part, the second card-tight part clamping ear-hang band, difficult drop-off.
Further improvement is, described mask body is provided with unidirectional air outlet valve, and the effect of unidirectional air outlet valve is to make mouth mask in use, can not form steam in spatial accommodation.
Further improvement is, 35 ~ 45 ° of positions on the downside of the protuberance that described unidirectional air outlet valve is positioned at described mask body, find through inventor's creative work, unidirectional air outlet valve adopts this vibrational power flow to be more conducive to the use of user, comfort level is good, gives vent to anger more smooth and easy.
Further improvement is, the face of described mask body is pasted circle and adopted sweat-absorbing cloth to make, and described sweat-absorbing cloth is terylen and cotton blended cloth, and absorbing sweat better effects if, also has anti-skidding effect; The material of described fastener is polyethylene, has certain elasticity and intensity, long service life.
Passable, described vertical slot and transverse groove intersection are provided with a boss, and described boss is positioned on the clearing end of described vertical slot, the boss that vertical slot and transverse groove intersection are arranged can prevent ear-hang band from coming off from the first card-tight part, the second card-tight part further.
Compared with prior art, the beneficial effect that the present invention has is: achieve and only have a pad, just ear-hang band and mask body can be coupled together, technique is simple, scientific and reasonable for structure, cost is low; In addition, fastener is flexibly connected with ear-hang band, and gauche form arranges ear-hang band, adds the extendable room of ear-hang band, and user can regulate ear-hang strip length, and comfort is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the mouth mask of prior art;
Fig. 2 is the Facad structure schematic diagram of single-point welded type mouth mask of the present invention;
Fig. 3 is the structure schematic diagram of single-point welded type mouth mask of the present invention;
Fig. 4 is the structural representation of the fastener of single-point welded type mouth mask of the present invention;
1-mask body; 101-surrounding edge; 102-protuberance; 103-shaped element; 104-pad; Circle is pasted in 105-face; 2-1,2-2-ear-hang band; 3-fastener; 301-first card-tight part; 3011-vertical slot; 3012-transverse groove; 3013-boss; 302-second card-tight part; 4-connects fastener; 401-blind hole; 402-links up with.
Detailed description of the invention
Embodiment one: as shown in Fig. 2 ~ 4, this single-point welded type mouth mask, comprises mask body 1 and ear-hang band 2, and wherein this single-point welded type mouth mask is provided with two ear-hang bands 2-1,2-2; Described mask body 1 includes the surrounding edge 101 being close to face, and from edge outwards and extend to form the protuberance 102 be made up of poromeric material to centre, this protuberance 102 has the spatial accommodation holding nose and mouth to described surrounding edge 101; Shaped element 103 is provided with, the line left and right sides of the intermediate point of described shaped element 103 and the central point of protuberance 102 and be respectively arranged with a pad 104 near the edge of described surrounding edge 101 between described protuberance 102 and surrounding edge 101; Described pad 104 is connected with a fastener 3, the two ends of described fastener 3 are provided with the first card-tight part 301 and the second card-tight part 302; One end of described ear-hang band 2-1,2-2 is flexibly connected with the first card-tight part 301, and the other end is flexibly connected with the second card-tight part 302; Described shaped element 103 is arc depression from intermediate point toward both sides; The also company's of being provided with fastener 4 on described ear-hang band 2-1, described one end connecting fastener 4 has blind hole 401, and a wherein ear-hang band 2-1 of this single-point welded type mouth mask hangs through blind hole 401 company of making fastener 4; The described other end of fastener 4 of connecting also has hook 402, another ear-hang band 2-2 for this single-point welded type mouth mask of hook make described surrounding edge 101 tightly touch face; The edges at two ends place of described even fastener 4 is all in circular arc; On described surrounding edge 101 and be positioned at spatial accommodation be provided with one for absorbing sweat face paste circle 105; Described is pasted between circle 105 and described mask body 1 and has gap, described shaped element 103 position and be positioned at this gap and be provided with nose pad; Described first card-tight part 301 is identical with the structure of the second card-tight part 302; Described first card-tight part 301 has vertical slot 3011 and transverse groove 3012, described vertical slot 3011 vertically extends inwardly to clearing end by the breach at described fastener 3 edge and is formed, described vertical slot 3011 is provided with a boss 3013 with transverse groove 3012 intersection, and described boss 3013 is positioned on the clearing end of described vertical slot 3011; Described transverse groove 3012 is formed by the clearing end of described boss 3013 is laterally extending to both sides; Described transverse groove 3012 is provided with serrated rim; Described mask body 1 is provided with unidirectional air outlet valve, concrete, 35 ~ 45 ° of positions on the downside of the protuberance that described unidirectional air outlet valve is positioned at described mask body 1; The face of described mask body 1 is pasted circle 105 and is adopted sweat-absorbing cloth to make, and described sweat-absorbing cloth is terylen and cotton blended cloth; The material of described fastener 3 is polyethylene.
Using method: mask body 1 is placed on face, make protuberance 102 aim at nose, will wherein hang on an ear by an ear-hang band 2-1, and check that whether the length of ear-hang band 2-1 is suitable, as length is improper, then will the length of ear-hang band 2-1 be regulated to suitable; Again ear-hang band 2-2 is hung on another ear by another, and check that whether the length of ear-hang band 2-1 is suitable, as length is improper, then will the length of ear-hang band 2-1 be regulated to suitable.Or regulate the length of ear-hang band 2-1,2-2, ear-hang band 2-1,2-2 is made to be each passed through ear, by the hook 402 of junction button 4, an ear-hang band 2-1 of single-point welded type mouth mask is connected with another ear-hang band 2-2 make surrounding edge 101 tightly touch face.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand, the present invention is not restricted to the described embodiments, what describe in above-described embodiment and description just illustrates principle of the present invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and such as mask body can also be made foldable; These changes and improvements all fall in the claimed scope of the invention.
Claims (10)
1. a single-point welded type mouth mask, comprise mask body and ear-hang band, described mask body includes the surrounding edge being close to face, and from edge outwards and extend to form the protuberance be made up of poromeric material to centre, this protuberance has the spatial accommodation holding nose and mouth to described surrounding edge; Be provided with shaped element between described protuberance and surrounding edge, it is characterized in that, the line left and right sides of the intermediate point of described shaped element and the central point of protuberance and be respectively arranged with a pad near the edge of described surrounding edge; Described pad is connected with a fastener, the two ends of described fastener are provided with the first card-tight part and the second card-tight part; One end of described ear-hang band is flexibly connected with the first card-tight part, and the other end is flexibly connected with the second card-tight part; This single-point welded type mouth mask is provided with two ear-hang bands.
2. single-point welded type mouth mask according to claim 1, is characterized in that, described shaped element is arc depression from intermediate point toward both sides.
3. single-point welded type mouth mask according to claim 1, is characterized in that, the also company's of being provided with fastener on described ear-hang band, and described one end connecting fastener has blind hole, and a wherein ear-hang band of this single-point welded type mouth mask makes to connect fastener through blind hole and hangs; The described other end of fastener of connecting also has hook, another ear-hang band for this single-point welded type mouth mask of hook make described surrounding edge tightly touch face.
4. single-point welded type mouth mask according to claim 3, is characterized in that, the edges at two ends place of described even fastener is all in circular arc.
5. the single-point welded type mouth mask according to any one of claim 1 ~ 4, is characterized in that, on described surrounding edge and be positioned at spatial accommodation be provided with one for absorbing sweat face paste circle; Described is pasted between circle with described mask body and has gap, described shaped element position and be positioned at this gap and be provided with nose pad.
6. single-point welded type mouth mask according to claim 5, is characterized in that, described first card-tight part is identical with the structure of the second card-tight part; Described first card-tight part has vertical slot and transverse groove, and described vertical slot vertically extends inwardly to clearing end by the breach at described fastener edge and formed, and described transverse groove is formed by the clearing end of described vertical slot is laterally extending to both sides.
7. single-point welded type mouth mask according to claim 6, it is characterized in that, described transverse groove is provided with serrated rim.
8. single-point welded type mouth mask according to claim 7, it is characterized in that, described mask body is provided with unidirectional air outlet valve.
9. single-point welded type mouth mask according to claim 8, is characterized in that, 35 ~ 45 ° of positions on the downside of the protuberance that described unidirectional air outlet valve is positioned at described mask body.
10. single-point welded type mouth mask according to claim 9, is characterized in that, the face of described mask body is pasted circle and adopted sweat-absorbing cloth to make, and described sweat-absorbing cloth is terylen and cotton blended cloth; The material of described fastener is polyethylene.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510262025.3A CN104839910A (en) | 2015-05-21 | 2015-05-21 | Single-point welding mask |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510262025.3A CN104839910A (en) | 2015-05-21 | 2015-05-21 | Single-point welding mask |
Publications (1)
Publication Number | Publication Date |
---|---|
CN104839910A true CN104839910A (en) | 2015-08-19 |
Family
ID=53840202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510262025.3A Pending CN104839910A (en) | 2015-05-21 | 2015-05-21 | Single-point welding mask |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104839910A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106031531A (en) * | 2015-03-20 | 2016-10-19 | 宣德医材科技股份有限公司 | Mask sling fixing sheet |
WO2018086061A1 (en) * | 2016-11-11 | 2018-05-17 | Honeywell International Inc. | Strap for face mask having multiple configurations |
CN108936888A (en) * | 2018-08-31 | 2018-12-07 | 美佳德科技(无锡)有限公司 | Multifunctional dust protecting mask |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983002726A1 (en) * | 1982-02-09 | 1983-08-18 | Van Der Smissen, Carl-Ernst | Filtering respiratory half-mask |
CN2111121U (en) * | 1992-01-30 | 1992-07-29 | 海拉尔市针织厂 | Anion dustproof gauze mask |
US5617849A (en) * | 1995-09-12 | 1997-04-08 | Minnesota Mining And Manufacturing Company | Respirator having thermochromic fit-indicating seal |
CN1160336A (en) * | 1994-10-13 | 1997-09-24 | 美国3M公司 | Respirator nose clip |
CN1450866A (en) * | 2000-02-09 | 2003-10-22 | 3M创新有限公司 | Filtering face mask that has headband mounts |
JP2008055036A (en) * | 2006-09-01 | 2008-03-13 | Iris Ohyama Inc | Mask |
US20100218774A1 (en) * | 2009-02-27 | 2010-09-02 | Meridian Medical Llc | Decorative cover for a respirator mask |
CN202009717U (en) * | 2011-03-01 | 2011-10-19 | 上海爽蒂生活日用品有限公司 | Disposable mask |
CN102987603A (en) * | 2011-09-08 | 2013-03-27 | 郑贞大 | Dust mask |
CN203040764U (en) * | 2013-01-17 | 2013-07-10 | 滁全实业发展(上海)有限公司 | Mask |
CN203723481U (en) * | 2014-02-17 | 2014-07-23 | 广东机电职业技术学院 | Folding mask having hanging decoration and bag functions |
CN203763695U (en) * | 2014-02-17 | 2014-08-13 | 张毅林 | Gill breathing type respirator |
CN204034073U (en) * | 2014-08-12 | 2014-12-24 | 广州拜费尔空气净化材料有限公司 | With the mouth mask of Novel breather valve |
CN204032439U (en) * | 2014-08-12 | 2014-12-24 | 广州拜费尔空气净化材料有限公司 | A kind of anti-fine particle mouth mask |
CN204617131U (en) * | 2015-05-21 | 2015-09-09 | 马振原 | Single-point welded type mouth mask |
-
2015
- 2015-05-21 CN CN201510262025.3A patent/CN104839910A/en active Pending
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983002726A1 (en) * | 1982-02-09 | 1983-08-18 | Van Der Smissen, Carl-Ernst | Filtering respiratory half-mask |
CN2111121U (en) * | 1992-01-30 | 1992-07-29 | 海拉尔市针织厂 | Anion dustproof gauze mask |
CN1160336A (en) * | 1994-10-13 | 1997-09-24 | 美国3M公司 | Respirator nose clip |
US5617849A (en) * | 1995-09-12 | 1997-04-08 | Minnesota Mining And Manufacturing Company | Respirator having thermochromic fit-indicating seal |
CN1450866A (en) * | 2000-02-09 | 2003-10-22 | 3M创新有限公司 | Filtering face mask that has headband mounts |
JP2008055036A (en) * | 2006-09-01 | 2008-03-13 | Iris Ohyama Inc | Mask |
US20100218774A1 (en) * | 2009-02-27 | 2010-09-02 | Meridian Medical Llc | Decorative cover for a respirator mask |
CN202009717U (en) * | 2011-03-01 | 2011-10-19 | 上海爽蒂生活日用品有限公司 | Disposable mask |
CN102987603A (en) * | 2011-09-08 | 2013-03-27 | 郑贞大 | Dust mask |
CN203040764U (en) * | 2013-01-17 | 2013-07-10 | 滁全实业发展(上海)有限公司 | Mask |
CN203723481U (en) * | 2014-02-17 | 2014-07-23 | 广东机电职业技术学院 | Folding mask having hanging decoration and bag functions |
CN203763695U (en) * | 2014-02-17 | 2014-08-13 | 张毅林 | Gill breathing type respirator |
CN204034073U (en) * | 2014-08-12 | 2014-12-24 | 广州拜费尔空气净化材料有限公司 | With the mouth mask of Novel breather valve |
CN204032439U (en) * | 2014-08-12 | 2014-12-24 | 广州拜费尔空气净化材料有限公司 | A kind of anti-fine particle mouth mask |
CN204617131U (en) * | 2015-05-21 | 2015-09-09 | 马振原 | Single-point welded type mouth mask |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106031531A (en) * | 2015-03-20 | 2016-10-19 | 宣德医材科技股份有限公司 | Mask sling fixing sheet |
CN106031531B (en) * | 2015-03-20 | 2017-11-07 | 宣德医材科技股份有限公司 | The stator of mask hanging strip |
WO2018086061A1 (en) * | 2016-11-11 | 2018-05-17 | Honeywell International Inc. | Strap for face mask having multiple configurations |
US11969035B2 (en) | 2016-11-11 | 2024-04-30 | Honeywell International Inc. | Strap for face mask having multiple configurations |
CN108936888A (en) * | 2018-08-31 | 2018-12-07 | 美佳德科技(无锡)有限公司 | Multifunctional dust protecting mask |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN204617131U (en) | Single-point welded type mouth mask | |
CN104839910A (en) | Single-point welding mask | |
CN204908033U (en) | Plane gauze mask | |
CN210382751U (en) | Mask convenient to wear | |
CN203262327U (en) | Foldable protective mask | |
WO2019033515A1 (en) | Disposable protective mask | |
CN209420998U (en) | Medical anti-fog mouth mask | |
CN203040764U (en) | Mask | |
CN202697800U (en) | Respirator | |
CN204208154U (en) | A kind of porous easily regulates respirator headband | |
CN211021070U (en) | Folding type breathing mask | |
CN204708041U (en) | A kind of medical surgical respirator | |
CN213215471U (en) | Nursing mask for operating room | |
CN111904058A (en) | Mask | |
CN214229965U (en) | Novel children's gauze mask | |
CN213823228U (en) | Mask | |
CN205547450U (en) | Novel odorless free from extraneous odour gauze mask | |
CN213029854U (en) | Protective mask with composite structure | |
CN212877720U (en) | Mask with melt-blown cool feeling | |
CN211832907U (en) | Medical breathing mask | |
CN214071890U (en) | KN95 mask with exhaust valve and adjustable ear ropes | |
CN108936882A (en) | A kind of anti-dust mask of good airproof performance | |
CN213587492U (en) | Novel mask | |
CN213128133U (en) | Adjustable protective mask for children | |
CN215075688U (en) | Gauze mask of adjustable hangers rope length |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
EXSB | Decision made by sipo to initiate 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: 20150819 |