CN213881868U - Multifunctional mask - Google Patents
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- CN213881868U CN213881868U CN202022133778.3U CN202022133778U CN213881868U CN 213881868 U CN213881868 U CN 213881868U CN 202022133778 U CN202022133778 U CN 202022133778U CN 213881868 U CN213881868 U CN 213881868U
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Abstract
The utility model belongs to the technical field of medical supplies, concretely relates to multifunctional mask. The utility model provides a multifunctional mask, including the cover body and earlap, the cover body is including cover cloth and moulding portion. Cover cloth includes first folding district, the folding district of second, first node district and tightens up the district, through independently opening first folding district, the folding district of second in order to form respectively that supply the first sunk space that the mouth and nose held, supply the second sunk space that the face held, through wear to establish the ear area in order to adjust ear area elasticity degree in tightening up the district. According to the multifunctional mask with the structure, on the basis of ensuring the attaching degree of the second folding area and the face, a gap exists between a first concave space formed by the first folding area and the mouth and nose, so that the multifunctional mask is prevented from being directly contacted with the mouth and nose, and a wearer can conveniently communicate with the person; simultaneously, set up moulding portion and improved the laminating degree of cover cloth with facial, the leakproofness is good, has improved the protective effect.
Description
Technical Field
The utility model belongs to the technical field of medical supplies, concretely relates to multifunctional mask.
Background
The mask is a common medical protective product, is worn at the mouth and nose parts to filter air so as to prevent harmful gas, smell and spray from entering and exiting the mouth and nose, thereby protecting the respiratory system from being damaged, and has a good defense effect particularly when respiratory infectious diseases are popular or dust and other polluted environment operations are carried out. The mask is classified into an air filtration type mask and an air supply type mask, wherein the air filtration type mask is widely popularized due to the advantages of low cost, convenience in use and the like.
The mask is a standard component and comprises a mask body and an ear rope, wherein the mask body is used for covering the mouth and nose parts, and the ear rope is hung on the ears when being worn. In order to solve the problem of sealing performance of the nose bridge when the mask is worn, a nose bridge strip is usually arranged in the nose bridge of the mask body, the nose bridge strip is pressed according to the nose shape of the user when the mask is worn, and the mask body is pulled down to completely cover the mouth and the nose.
However, there are also the following problems when actually worn: (1) the fit degree of the nose bridge strip and the nose bridge is not ideal, gaps exist on two sides of the nose wing, the sealing performance is poor, the protection effect is reduced, and particularly for people wearing glasses, the exhaled air easily causes fog to appear on the lenses, and the sight is affected; (2) the wearing time is too long, the pressure mark is easy to generate on the nose bridge, and the comfort is poor; (3) the flat mask is tightly attached to the mouth and nose, so that a wearer is extremely uncomfortable due to the fact that the mouth of the wearer rubs the mask when communicating with the wearer, and the mask is easy to be wet after the wearer wears the mask for a long time; the three-dimensional mask is provided with the bulges at the mouth and nose parts, so that the mask is prevented from being directly contacted with the mouth and nose parts, but the manufacturing cost is high and the mask is inconvenient to carry.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that current gauze mask leakproofness is poor, easily produce the indentation to the bridge of the nose and inconvenient person of wearing exchanges to provide one kind and easily strut into three-dimensional, and with the high and no indentation of oronasal part laminating degree multi-functional gauze mask.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides a multifunctional mask, which comprises a mask body and ear belts;
the mask body comprises a mask cloth and a shaping part arranged at the edge of the mask cloth so as to enable the edge of the mask cloth to be attached to the face;
wherein, the cover cloth includes the first folding district that corresponds with the mouth nose, sets up second folding district, setting around the first folding district are in first folding district with first node district and setting between the second folding district are in second folding district both ends are in order to supply the tightening up district that the ear area wore to establish, through with first folding district the second folding district independently opens in order to form respectively the first sunk space that supplies the mouth nose to hold, the second sunk space that supplies the face to hold.
Preferably, the multi-functional gauze mask of this structure, first nodal point district is fan-shaped frame form, first folding district is a plurality of first folds of symmetric distribution including being with fan-shaped symmetry axis, just first fold distributes along fan-shaped radial line direction.
Further preferably, in the multifunctional mask with the structure, the second folding area comprises a plurality of circular arc-shaped second folds, and the circular arcs where the second folds are located and the fan-shaped arc edges of the first node area are concentric circular arcs.
Further preferably, in the multifunctional mask with the structure, the edge of the first folding area and the edge of the second folding area are hot-pressed or bonded to form the first node area.
Further preferably, in the multifunctional mask with the structure, the first folding area comprises a moisture absorption layer, an antibacterial layer, a first high-grade filter layer, a first primary filter layer and a first protective layer which are sequentially stacked from inside to outside;
the second folding area comprises a skin-friendly layer, a second high-grade filter layer, a second primary filter layer and a second protective layer which are sequentially stacked from inside to outside.
Preferably, in the multifunctional mask with the structure, the moisture absorption layer contains a high-molecular water absorbent, the antibacterial layer is soaked with bacteriostatic traditional Chinese medicines, and the skin-friendly layer is selected from chitin spun-bonded cloth or bamboo fiber non-woven cloth;
the first high-grade filter layer and the second high-grade filter layer are made of anion melt-blown cloth, and the first primary filter layer and the second primary filter layer are made of activated carbon spun-bonded cloth.
Preferably, the multifunctional mask of this structure, moulding portion is including setting up the cover cloth edge is in order to incite somebody to action the moulding strip of cover cloth edge laminating nose bridge upper end and setting are in first nodal point district straight flange side is in order to incite somebody to action the moulding piece of first nodal point district straight flange laminating nose back of the body.
Further preferably, the multifunctional mask with the structure further comprises a soft sealing part which is arranged on the inner side of the mask cloth and corresponds to the shaping part.
Further preferably, in the multifunctional mask with the above structure, the soft sealing portion is selected from one of a sponge layer, a silica gel layer and a cotton fiber layer.
Preferably, the tightening area of the multifunctional mask with the structure comprises tightening channels arranged at the outer layers of the two ends of the second folding area, each tightening channel comprises a penetration port positioned at the two ends and a penetration port positioned between the two penetration ports, and the two ends of the ear band are penetrated through the two penetration ports respectively and are connected after penetrating through the penetration ports to form a limiting ball.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a multifunctional mask, including the cover body and ear area, this cover body is including the cover cloth and set up at the cover cloth edge in order to cover the facial moulding portion of cloth edge laminating. Wherein, cover cloth includes the first folding district that corresponds with the mouth nose, sets up the second folding district around first folding district, sets up the first node district between first folding district and the second folding district and sets up in the second folding district both ends in order to supply the tightening up district that the ear area wore to establish through independently opening first folding district, second folding district in order to form respectively the first sunk space that supplies the mouth nose to hold, the second sunk space that supplies facial to hold.
According to the multifunctional mask with the structure, the first folding area corresponds to the mouth and the nose, the second folding area is arranged around the first folding area, the first node area is arranged between the first folding area and the second folding area, a first concave space for the mouth and the nose to contain and a second concave space for the face to contain can be formed by independently opening the first folding area and the second folding area, on the basis of ensuring the fitting degree of the second folding area and the face, a gap exists between the first concave space formed by the first folding area and the mouth and the nose, the mouth and the nose are prevented from being in direct contact, and a wearer can conveniently communicate with the person; simultaneously, set up moulding portion and improved the laminating degree of cover cloth with facial, the leakproofness is good, has improved the protective effect.
2. The utility model provides a multifunctional mask, first nodal point district are fan-shaped frame form, and a plurality of first folds in first folding district are with fan-shaped symmetry axis symmetric distribution to distribute along fan-shaped radial line. The first sunken space that the first folding region of this structure formed is the half cone structure, coincide with oronasal spatial structure, especially do not influence oral area muscle action, has improved the degree of freedom that the person of wearing exchanged with the people.
3. The utility model provides a multifunctional mask, first folding zone include moisture absorption layer, antibiotic layer, first senior filter layer, first primary filter layer and the first protective layer that stacks gradually the setting from inside to outside, contain the polymer water absorbent in the moisture absorption layer, have soaked antibacterial traditional chinese medicine in the antibiotic layer, and first senior filter layer adopts anion melt-blown cloth, and first primary filter layer adopts the active carbon to spin the viscose cloth.
The first folding area of the structure gradually filters air to be sucked, the first protective layer has the functions of isolating larger particles, spray and the like, and the first primary filter layer can further adsorb finer particles; the first high-grade filter layer has large specific surface area and porosity, and can shield liquid, aerosol, most bacteria, viruses and the like; the moisture absorption layer can effectively absorb the exhaled water vapor, so that the water vapor is prevented from escaping from the upper part of the mask; the antibacterial layer is matched with the moisture absorption layer to inhibit the bacterial breeding in a high-humidity environment.
4. The utility model provides a multifunctional mask, the second folding area comprises a skin-friendly layer, a second advanced filter layer, a second primary filter layer and a second protective layer which are sequentially stacked from inside to outside, the skin-friendly layer is selected from chitin spun-bonded fabric or bamboo fiber non-woven fabric, and the skin-friendly performance is improved; wherein, the chitin is used as the only positively charged animal cellulose in the nature, and can also adsorb negatively charged particles, bacteria and viruses in the air.
5. The utility model provides a multifunctional mask, moulding portion include moulding strip and moulding piece, and moulding strip sets up in the cover cloth edge in order to cover cloth edge laminating bridge of the nose upper end, and moulding piece sets up in the straight avris of first nodal region in order to laminate the nose back of the body with first nodal region straight flange, has improved gauze mask and facial laminating degree, and the leakproofness is strong, and gas is revealed from the top when preventing to breathe, and the protecting effect is good.
6. The utility model provides a multifunctional mask corresponds the position at the cover cloth inboard and moulding portion and is provided with soft sealing, direct and bridge of the nose, cheek contact, has alleviateed moulding portion on the one hand to the oppression sense of bridge of the nose, cheek, and on the other hand has improved the leakproofness, effectively avoids the expired steam to form the fog on glasses.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an outer side surface of a multifunctional mask provided in embodiment 1 of the present invention (a fold structure is not shown);
fig. 2 is a schematic view of an inner side surface structure of a multifunctional mask provided in embodiment 1 of the present invention;
fig. 3 is a schematic view of a cross-sectional structure of a first fold provided in embodiment 1 of the present invention;
fig. 4 is a schematic view of a first folding area stacking structure provided in embodiment 1 of the present invention;
fig. 5 is a schematic view of a second folding area stacking structure provided in embodiment 1 of the present invention;
fig. 6 is a schematic view of a tightening region structure provided in embodiment 1 of the present invention;
fig. 7 is a schematic structural view of the shaping portion provided in embodiment 1 of the present invention;
description of reference numerals:
1-a cover body; 11-cover cloth; 111-a first fold region; 1111-a first corrugation; 1112-a moisture-absorbing layer; 1113-antibacterial layer; 1114 — a first high-level filtration layer; 1115 — a first primary filtration layer; 1116-a first outer protective layer; 112-a second fold area; 1121-second fold; 1122-skin-friendly layer; 1123 — a first high-level filter layer; 1124-a second primary filter layer; 1125-a second outer protective layer; 113-a first node zone; 114-a second node zone; 115-a tightening zone; 1151-tightening the channel; 1152-a penetration; 1153-a feed-through port; 12-a shaping part; 121-shaping strips; 122-a shaping sheet; 13-soft sealing part;
2-ear belt; 21-a limit ball.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides a multifunctional mask, as shown in fig. 1, comprising a mask body 1 and an ear band 2. As shown in fig. 2, the cover 1 includes a cover cloth 11, a shaping portion 12, and a soft sealing portion 13.
As shown in fig. 1, the cover cloth 11 is rectangular when not opened, has a length of 16-19 cm and a width of 8-11 cm, and is suitable for wearers with different face sizes; in this embodiment, the cover cloth 11 has a length of 17.5cm and a width of 9.5 cm. In order to facilitate the packaging and transportation of manufacturers and the wearing of wearers, a folding structure is arranged in the filtering area of the cover cloth 11, and the switching between the plane state and the three-dimensional state of the cover cloth 11 can be realized by folding or unfolding the folding structure. As shown in fig. 1, the cover cloth 11 is divided into a first folding area 111, a second folding area 112, a first node area 113, a second node area 114 and a tightening area 115 according to the arrangement of the folding structure.
As shown in fig. 1, the first folded region 111 is provided at the upper middle portion of the cover cloth 11 so as to correspond to the mouth and nose when worn. Specifically, the first folding area 111 is a fan-shaped area when not opened, a fan-shaped symmetry axis of the first folding area coincides with a symmetry axis of the cover cloth 11 along the width direction, and an included angle between two straight edges is 40-90 degrees; as shown in fig. 2, a plurality of first pleats 1111 are disposed in the first folding area 111, and the first pleats 1111 are disposed along a radial line of the fan shape and symmetrically distributed with respect to the fan-shaped symmetry axis. In this embodiment, four first pleats 1111 are disposed, and the left and right pleats are mirror symmetric around the fan-shaped symmetry axis: the first pleats 1111 located on the left side of the fan-shaped symmetry axis are in a regular S-shaped structure, the first pleats 1111 located on the right side of the fan-shaped symmetry axis are in an inverse S-shaped structure, two first pleats 1111 in the middle protrude outwards, and the four first pleats 1111 are integrally in a shape of a Chinese character pin, and the cross-sectional structure of the four first pleats 1111 is shown in fig. 3.
As shown in fig. 1 and 2, the second folding region 112 is disposed around the first folding region 111, and is used for covering the face around the mouth and nose, and includes a plurality of second folds 1121, the second folds 1121 is disposed in an arc shape, and is concentric with the arc edge of the first folding region 111. In this embodiment, four second pleats 1121 are provided.
As shown in fig. 1, the first node region 113 is disposed between the first folding region 111 and the second folding region 112, and the first node region 113 is formed by thermally pressing or bonding the edges of the first folding region 111 and the edges of the second folding region 112. In this embodiment, the edge of the first folding region 111 and the second folding region 112 are directly reinforced by hot pressing using a dedicated ultrasonic mask hot press to form a first node region 113, and the first node region 113 is a fan-shaped frame-shaped structure surrounding the first folding region 111.
The first node area 113 is arranged between the first folding area 111 and the second folding area 112, the first folding area 111 and the second folding area 112 can be independently opened to form a first concave space for accommodating the mouth and the nose and a second concave space for accommodating the face, and the first folding area 111 and the second folding area 112 are independently opened and are not influenced by each other.
As shown in fig. 4, the first folding region 111 is provided with a plurality of layers, and a moisture absorption layer 1112, an antibacterial layer 1113, a first high-order filter layer 1114, a first preliminary filter layer 1115, and a first outer protective layer 1116 are sequentially stacked from the inside out. Wherein the moisture absorption layer 1112 comprises a polymeric water absorbent, such as starch graftPotassium or sodium polyacrylate; the antibacterial layer 1113 is soaked with antibacterial Chinese medicinal materials such as herba Menthae, herba Houttuyniae, herba Taraxaci, Aloe, thyme essential oil, and rose essential oil; the first high-grade filter layer 1114 is made of anion melt-blown cloth, the thickness is 0.45-0.7 mm, and the mass per square meter is 80-120 g/m2(ii) a The first primary filter layer 1115 is made of activated carbon spunbonded cloth; the first outer protective layer 1116 is a polypropylene spunbonded fabric.
As shown in fig. 5, the second folding region 112 is provided in a plurality of layers, and a skin-friendly layer 1122, a second high-order filtration layer 1123, a second primary filtration layer 1124 and a second outer protective layer 1125 are laminated in this order from the inside to the outside. Wherein, the skin-friendly layer 1122 is selected from chitin spun-bonded cloth or bamboo fiber non-woven cloth; the second high-level filter layer 1123 is melt-blown with negative ions; the second primary filter layer 1124 is made of activated carbon spun-bonded cloth; the second outer protective layer 1125 is made of polypropylene spunbonded.
In this embodiment, the polymeric water absorbent used in the moisture absorption layer 1112 is a starch grafted sodium polyacrylate; the antibacterial layer 1113 is internally soaked with mint, houttuynia cordata, dandelion, aloe, thyme essential oil and rose essential oil in a mass ratio of 1:1.5:1.5:3:2: 1; the first high-level filtration layer 1114 has a thickness of 0.5mm and a mass per square meter of 100g/m2. The skin-friendly layer 1122 is selected from chitin spunbonded fabric; the second high-level filter layer 1123 has a thickness of 0.5mm and a mass per square meter of 100g/m2。
As shown in fig. 2, the second node regions 114 are disposed at four edges of the cover fabric 11, and are formed by directly performing hot pressing and reinforcing using a dedicated ultrasonic mask hot press.
As shown in FIG. 1, tightening regions 115 are provided at both ends of the second folded region 112 for the ear bands 2 to pass through for wearing the mask body 1 on the face. Specifically, as shown in fig. 6, the tightening region 115 includes two tightening channels 1151 that are provided at both ends and in parallel, the tightening channels 1151 are provided outside the second node region 114, and each tightening channel 1151 includes two penetration ports 1152 at both ends and a penetration port 1153 provided between the two penetration ports 1152.
As shown in fig. 2, the shaping portion 12 is provided inside the upper side edge of the cover cloth 11 to fit the cover cloth 11 to the upper end of the bridge of the nose and the cheeks. Specifically, as shown in fig. 7, the shaping portion 12 includes a "one" -shaped shaping strip 121 and a "eight" -shaped shaping piece 122; the shaping strip 121 is embedded into the cover cloth 11 along the length direction of the cover cloth 11 and used for enabling the edge of the cover cloth 11 to be attached to the upper end of the nose bridge and the cheeks, and the length is 14-16 cm; the shaping piece 122 is embedded in the straight edge of the first node region 113 to attach the straight edge of the first node region 113 to the back of the nose. The shaping strip 121 and the shaping sheet 122 are integrally formed, and the material thereof is metal, plastic, etc.; in this embodiment, the shaping strip 121 and the shaping sheet 122 are made of metal, and the length of the shaping strip 121 is 15.5 cm.
As shown in fig. 2, the soft sealing portion 13 is disposed inside the upper portion of the cover cloth 11, and has the same structure as the shaping portion 12 for directly contacting the bridge of the nose, the back of the nose, and the cheeks. Soft sealing portion 13 adopts sponge layer, silica gel layer and cotton fiber layer, and in this embodiment, soft sealing portion 13 adopts the sponge layer, and thickness is 0.3 mm. The soft sealing portion 13 of this structure cooperates with moulding portion 12, under the prerequisite of guaranteeing the leakproofness, has reduced the oppression sense to face, and especially moulding piece 122 has increased the leakproofness with the laminating of soft sealing portion 13 on the back of the nose, prevents that expired gas from escaping from the gauze mask top.
As shown in fig. 6, the two ends of the ear band 2 are respectively penetrated through two penetrating ports 1152, and the ends thereof are penetrated through the penetrating ports 1153 and connected to form the limiting ball 21. Because the ear strap 2 penetrating into the tightening channel 1151 and the tightening channel 1151 have friction force, the wearer can adjust the tightness degree of the ear strap by pulling and placing the ear strap 2 according to the size of the face of the wearer.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A multifunctional mask is characterized by comprising a mask body and an ear belt;
the mask body comprises a mask cloth and a shaping part arranged at the edge of the mask cloth so as to enable the edge of the mask cloth to be attached to the face;
wherein, the cover cloth includes the first folding district that corresponds with the mouth nose, sets up second folding district, setting around the first folding district are in first folding district with first node district and setting between the second folding district are in second folding district both ends are in order to supply the tightening up district that the ear area wore to establish, through with first folding district the second folding district independently opens in order to form respectively the first sunk space that supplies the mouth nose to hold, the second sunk space that supplies the face to hold.
2. The multifunctional respirator according to claim 1, wherein the first nodal region is shaped like a fan, the first folding region comprises a plurality of first folds symmetrically distributed about a fan-shaped axis of symmetry, and the first folds are distributed along a fan-shaped radial line.
3. The multifunctional mask according to claim 2, wherein the second folding area comprises a plurality of circular arc-shaped second folds, and the circular arcs where the second folds are located and the fan-shaped arc edges of the first node area are concentric circular arcs.
4. The multi-purpose mask of claim 3 wherein said first fold area edge and said second fold area edge are heat pressed or bonded to form said first node area.
5. The multifunctional mask according to claim 4, wherein said first folding area comprises a moisture absorption layer, an antibacterial layer, a first high-grade filter layer, a first primary filter layer and a first protective layer which are sequentially stacked from inside to outside;
the second folding area comprises a skin-friendly layer, a second high-grade filter layer, a second primary filter layer and a second protective layer which are sequentially stacked from inside to outside.
6. The multifunctional mask according to claim 5, wherein the moisture absorbing layer comprises a polymeric water absorbent, the antibacterial layer is impregnated with bacteriostatic traditional Chinese medicines, and the skin-friendly layer is selected from chitin spun-bonded fabric or bamboo fiber non-woven fabric;
the first high-grade filter layer and the second high-grade filter layer are made of anion melt-blown cloth, and the first primary filter layer and the second primary filter layer are made of activated carbon spun-bonded cloth.
7. The multi-functional mask according to any one of claims 1 to 6, wherein said shaping portion comprises a shaping strip provided on the edge of said cover cloth for attaching said edge of said cover cloth to the upper end of the nose bridge and a shaping piece provided on the straight side of said first nodal region for attaching the straight side of said first nodal region to the back of the nose.
8. The multi-functional mask according to claim 7, further comprising a soft sealing part provided inside the cover cloth and corresponding to said shaping part.
9. The multifunctional mask according to claim 8, wherein said soft sealing portion is selected from one of a sponge layer, a silica gel layer and a cotton fiber layer.
10. The multifunctional mask according to any one of claims 1 to 6, wherein the tightening region comprises tightening channels disposed on the outer layers at the two ends of the second folding region, the tightening channels comprise penetration ports at the two ends and a penetration port between the two penetration ports, and the two ends of the ear strap are penetrated through the two penetration ports respectively, are penetrated through the penetration port and are connected to form a limiting ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022133778.3U CN213881868U (en) | 2020-09-25 | 2020-09-25 | Multifunctional mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022133778.3U CN213881868U (en) | 2020-09-25 | 2020-09-25 | Multifunctional mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213881868U true CN213881868U (en) | 2021-08-06 |
Family
ID=77112309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022133778.3U Expired - Fee Related CN213881868U (en) | 2020-09-25 | 2020-09-25 | Multifunctional mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213881868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220212042A1 (en) * | 2021-01-07 | 2022-07-07 | National Taiwan Ocean University | Mask-oriented air filtering pad |
-
2020
- 2020-09-25 CN CN202022133778.3U patent/CN213881868U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220212042A1 (en) * | 2021-01-07 | 2022-07-07 | National Taiwan Ocean University | Mask-oriented air filtering pad |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20210806 |