CN213128135U - Mask convenient to replace lamella - Google Patents
Mask convenient to replace lamella Download PDFInfo
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- CN213128135U CN213128135U CN202021852893.XU CN202021852893U CN213128135U CN 213128135 U CN213128135 U CN 213128135U CN 202021852893 U CN202021852893 U CN 202021852893U CN 213128135 U CN213128135 U CN 213128135U
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Abstract
The utility model provides a mask convenient for replacing a sheet layer, which comprises a sheet layer fixing belt and a mask sheet layer connected with the sheet layer fixing belt; the sheet layer fixing belt comprises a rectangular fixing frame and a lace connected with the rectangular fixing frame; two sides of the rectangular fixing frame connected with the tying belt are respectively and independently provided with at least 1 tensioning piece; the upper portion of the inner side of the mask sheet layer is provided with a metal pressing strip, and two ends of the mask sheet layer are provided with tensioning holes matched with the tensioning pieces. The utility model can stably fix the mask sheet layer on the face of a wearer by arranging the rectangular fixing frame, the tensioning piece and the corresponding tensioning hole, and can make the mask and the face of the wearer fit together by matching with the use of the metal pressing strip; meanwhile, the mask sheet layer can be replaced at will through the tensioning hole and the tensioning piece.
Description
Technical Field
The utility model belongs to the technical field of air purification, a gauze mask is related to, especially, relate to a gauze mask convenient to change lamella.
Background
The mask is a daily protective sanitary article, and common masks are sewn by gauze or non-woven fabrics, have the defects that the inner layer cannot be replaced and the filtering effect of PM2.5, viruses and bacteria is poor.
CN 104826250a discloses a long-acting sterilization bag type multipurpose mask with replaceable filter element and a mask filter sheet, which comprises a long-acting sterilization bag type mask and a long-acting sterilization mask filter paper or filter sheet independent of the outside of the mask. The gauze mask adopts the design of dislocation bordure and independent gauze mask sealing area and gauze mask breathing zone, and gauze mask filter plate or filter paper can be changed easily to the gauze mask of pocket type, and gauze mask and filter paper or filter plate have the isometric antibacterial effect that disinfects of tactoids and silver ion, can effectively eliminate the harm that PM2.5, PM10, pollen, dust and virus brought, can dismantle the bridge of the nose layering and can use repeatedly many times and wash.
However, the service life of the long-acting sterilization bag type multi-purpose replaceable filter element mask is closely related to the sealing performance of the pocket, and the sealing performance of the pocket is influenced by replacing the filter sheet in the pocket, so that the service life of the long-acting sterilization bag type multi-purpose replaceable filter element mask is short.
CN 201571525U discloses an antibacterial and antiviral mask, which comprises a mask body, wherein the mask body is divided into an upper half part and a lower half part, the upper half part and the lower half part can be folded, and a cavity capable of accommodating antibacterial and antiviral wet tissues is formed after the upper half part and the lower half part are folded, and two sides of the upper half part of the mask body are respectively provided with a connecting belt. The top of the upper half part of the cover body and the bottom of the lower half part of the cover body are provided with sticky buckles which are mutually adhered.
Virus gauze mask can conveniently be changed antibiotic, antiviral wet piece of cloth, but the first half and the lower half of the cover body can't be changed, and the filter effect of its cover body reduces after long-time the use, and the sealed degree direct influence in cover body adhesive tape the effect of the isolated virus of gauze mask and bacterium.
CN 2635129Y discloses a novel mask with an inner layer of filter cloth convenient to replace, which consists of a plurality of layers of gauze or breathable non-woven fabrics, wherein the middle layer of the mask is provided with the filter cloth, and one side edge of the mask is provided with an opening capable of replacing the filter cloth of the middle layer; the inner layer filter cloth can be conveniently replaced through the opening at the side edge of the mask. CN 206760826U discloses a filter element replaceable PM2.5 resistant mask, which comprises a mask body and ear-hooks arranged on two sides of the mask body, wherein a filter element is arranged in the mask body, and a zipper opening structure is arranged at the edge of the mask body for replacing the filter element; the filter element structure is formed by sequentially laminating a first non-woven fabric layer, a PVC microporous membrane layer coated on the first non-woven fabric layer, an activated carbon non-woven fabric layer and a second non-woven fabric layer from outside to inside.
Novel gauze mask and the PM2.5 gauze mask of preventing of removable filter core simple structure, but it has the limited problem of intermediate level both sides gauze or ventilative non-woven fabrics life equally.
CN 208192250U discloses a gauze mask of removable filter element, by the outer and removable whole filter media of gauze mask constitution, the gauze mask outer strata includes that gauze mask crust and circle hair magic are pasted, removable whole filter media by filter element, nexine support cloth, silica gel membrane and collude the hair magic and paste and constitute, this removable whole filter media is pasted and be linked to each other with the gauze mask is outer through colluding the hair magic, circle hair magic is pasted and collude the hair magic and paste along the outer annular setting of gauze mask, colludes the inboard one deck silica gel membrane that sets up of the nexine support cloth of hair magic subsides back relevant position, silica gel membrane with collude the coincidence of hair magic subsides relevant position part or coincidence completely.
The filter element is changed through the cooperation that circle hair magic was pasted and colluded hair magic subsides to the gauze mask of removable filter element, but the life of magic subsides receives the influence of vapor easily, can't be to effective fixed filter element after wearing for a long time.
To the not enough of prior art, provide a simple structure, and the gauze mask that the convenience was changed the gauze mask main part, be favorable to reducing the waste of material, reduce the cost that the gauze mask used, and can promote the travelling comfort that the gauze mask wore.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model aims to provide a mask convenient for replacing the lamella, which has simple structure and convenient use; and through the arrangement of elastic fibers, the mask sheet layer is convenient to replace.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a gauze mask convenient to change lamella, gauze mask convenient to change gauze mask lamella includes lamella fixed band and the gauze mask lamella of being connected with the lamella fixed band.
The sheet layer fixing belt comprises a rectangular fixing frame and a lace connected with the rectangular fixing frame; the two sides of the rectangular fixing frame connected with the tying belt are respectively and independently provided with at least 1 tightening piece.
The upper portion of the inner side of the mask sheet layer is provided with a metal pressing strip, and two ends of the mask sheet layer are provided with tensioning holes matched with the tensioning pieces.
When the mask with the convenient replacement sheet layer provided by the utility model is used, the tensioning piece is matched with the tensioning hole, so that the tensioning piece is connected with the matched tensioning hole; when the mask with the convenient-to-replace sheet layer is worn, the lacing is pulled to fix the lacing on the ear of a wearer, and the sheet layer fixing belt is driven by the lacing to stretch along the length direction, so that the tensioning piece pulls the inner wall of the tensioning hole to fix the mask sheet layer and enable the mask sheet layer to be attached to the face of the wearer; then the mask sheet layer is attached to the face of the wearer under the action of the metal batten.
Preferably, the rectangular fixing frame is made of a fiber rope.
The conventional fiber rope in the field has elasticity, and the elastic fiber rope is used for manufacturing the sheet layer fixing belt, so that the sheet layer fixing belt can be stretched along the length direction when being worn, and the mask sheet layer is attached to the face of a wearer; the wearing comfort of the wearer can also be ensured.
Preferably, the tension member is a plastic hook.
The utility model discloses do not specifically prescribe to the shape that plastics colluded, in order to prevent tearing the gauze mask lamella, the shape that plastics colluded can be rationally selected to technical personnel in the field, makes the taut piece and taut hole have great area of contact.
The number of the tension pieces which are respectively and independently arranged on the two sides of the rectangular fixed frame connected with the tying bands is at least 1, such as 1, 2, 3, 4, 5, 6 or 7, but not limited to the enumerated values, and other unrecited values in the numerical range are also applicable; preferably, 1-3 tensioning pieces are respectively and independently arranged at two sides of the rectangular fixing frame connected with the tying belt; further preferably, 2 tensioning members are respectively and independently arranged at two sides of the rectangular fixing frame connected with the tying belt.
Preferably, the metal bead is an aluminum alloy bead.
Preferably, two short sides of the rectangular fixing frame are respectively and independently connected with a lace.
The utility model discloses in, independently connect the frenulum respectively at two minor faces of the fixed frame of rectangle, can make gauze mask lamella and the facial laminating better of wearing person.
Preferably, the 2 tension members are respectively arranged at two ends of the short edge of the rectangular fixing frame.
The utility model discloses in, through setting up 2 taut pieces respectively in the both ends of the minor face of the fixed frame of rectangle, can make taut piece launch the gauze mask lamella, improve the person's of wearing comfort level. And meanwhile, the mask is matched with the metal layering, so that the mask sheet layer is tightly attached to the face of a wearer.
Preferably, the length of the short side of the rectangular fixing frame is 40-60mm, for example 40mm, 42mm, 45mm, 46mm, 48mm, 50mm, 52mm, 54mm, 55mm, 56mm, 58mm or 60mm, but not limited to the values listed, and other values not listed in the range of values are equally applicable.
Preferably, the width of the mask sheet is 65 to 75mm, for example 65mm, 66mm, 67mm, 68mm, 69mm, 70mm, 71mm, 72mm, 73mm, 74mm or 75mm, but not limited to the values recited, and other values not recited within the range of values are equally applicable.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model can stably fix the mask sheet layer on the face of a wearer by arranging the rectangular fixing frame, the tensioning piece and the corresponding tensioning hole, and can make the mask and the face of the wearer fit together by matching with the use of the metal pressing strip; meanwhile, the mask sheet layer can be replaced at will through the tensioning hole and the tensioning piece.
Drawings
Fig. 1 is a schematic structural view of a mask facilitating replacement of a sheet layer provided in embodiment 1;
fig. 2 is a schematic structural view of the mask facilitating replacement of the sheet layer provided in embodiment 6.
Wherein: 1, a rectangular fixing frame; 2, tying a lace; 3, tensioning the piece; 4, mask sheet layer; 5, metal pressing strips; and 6, tightening the hole.
Detailed Description
It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" in the description of the present invention are to be construed broadly, and may for example be 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 by those of ordinary skill in the art through specific situations.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example 1
This embodiment provides a gauze mask convenient to change lamella, the schematic diagram of the structure of the gauze mask of the lamella of being convenient for change is shown in fig. 1, including lamella fixed band and the gauze mask lamella 4 of being connected with the lamella fixed band.
The sheet layer fixing belt comprises a rectangular fixing frame 1 and a lacing 2 connected with the rectangular fixing frame 1; two short edges of the rectangular fixing frame 1 are respectively and independently connected with tying belts 2. Two sides of the rectangular fixing frame 1 connected with the tying belts 2 are respectively and independently provided with 2 tensioning pieces 3. The 2 tensioning pieces 3 are respectively arranged at two ends of the short edge of the rectangular fixed frame 1.
The upper portion of the inner side of the mask sheet layer 4 is provided with a metal pressing strip 5, and two ends of the mask sheet layer 4 are provided with tensioning holes 6 matched with the tensioning pieces 3.
The rectangular fixing frame 1 is made of elastic fiber ropes, and the length of the short edge of the rectangular fixing frame is 50 mm; the width of the mask sheet layer 4 was 70 mm.
The tensioning piece 3 is a plastic hook.
The metal pressing strip 5 is an aluminum alloy pressing strip.
In the embodiment, the mask sheet layer 4 can be stably fixed on the face of a wearer by arranging the rectangular fixing frame 1, the tensioning piece 3 and the corresponding tensioning hole 6, and the mask can be attached to the face of the wearer by matching with the metal pressing strip 5; meanwhile, the mask sheet layer 4 can be replaced at will through the tensioning hole 6 and the tensioning piece 3.
Example 2
This embodiment provides a gauze mask convenient to change lamella, gauze mask convenient to change lamella includes lamella fixed band and the gauze mask lamella 4 of being connected with the lamella fixed band.
The sheet layer fixing belt comprises a rectangular fixing frame 1 and a lacing 2 connected with the rectangular fixing frame 1; two short edges of the rectangular fixing frame 1 are respectively and independently connected with tying belts 2. Two sides of the rectangular fixing frame 1 connected with the tying belts 2 are respectively and independently provided with 2 tensioning pieces 3. The 2 tensioning pieces 3 are respectively arranged at two ends of the short edge of the rectangular fixed frame 1.
The upper portion of the inner side of the mask sheet layer 4 is provided with a metal pressing strip 5, and two ends of the mask sheet layer 4 are provided with tensioning holes 6 matched with the tensioning pieces 3.
The rectangular fixing frame 1 is made of elastic fiber ropes, and the length of the short edge of the rectangular fixing frame is 45 mm; the width of the mask sheet layer 4 was 68 mm.
The tensioning piece 3 is a plastic hook.
The metal pressing strip 5 is an aluminum alloy pressing strip.
In the embodiment, the mask sheet layer 4 can be stably fixed on the face of a wearer by arranging the rectangular fixing frame 1, the tensioning piece 3 and the corresponding tensioning hole 6, and the mask can be attached to the face of the wearer by matching with the metal pressing strip 5; meanwhile, the mask sheet layer 4 can be replaced at will through the tensioning hole 6 and the tensioning piece 3.
Example 3
This embodiment provides a gauze mask convenient to change lamella, gauze mask convenient to change lamella includes lamella fixed band and the gauze mask lamella 4 of being connected with the lamella fixed band.
The sheet layer fixing belt comprises a rectangular fixing frame 1 and a lacing 2 connected with the rectangular fixing frame 1; two short edges of the rectangular fixing frame 1 are respectively and independently connected with tying belts 2. Two sides of the rectangular fixing frame 1 connected with the tying belts 2 are respectively and independently provided with 2 tensioning pieces 3. The 2 tensioning pieces 3 are respectively arranged at two ends of the short edge of the rectangular fixed frame 1.
The upper portion of the inner side of the mask sheet layer 4 is provided with a metal pressing strip 5, and two ends of the mask sheet layer 4 are provided with tensioning holes 6 matched with the tensioning pieces 3.
The rectangular fixing frame 1 is made of elastic fiber ropes, and the length of the short edge of the rectangular fixing frame is 40 mm; the width of the mask sheet layer 4 was 65 mm.
The tensioning piece 3 is a plastic hook.
The metal pressing strip 5 is an aluminum alloy pressing strip.
In the embodiment, the mask sheet layer 4 can be stably fixed on the face of a wearer by arranging the rectangular fixing frame 1, the tensioning piece 3 and the corresponding tensioning hole 6, and the mask can be attached to the face of the wearer by matching with the metal pressing strip 5; meanwhile, the mask sheet layer 4 can be replaced at will through the tensioning hole 6 and the tensioning piece 3.
Example 4
This embodiment provides a gauze mask convenient to change lamella, gauze mask convenient to change lamella includes lamella fixed band and the gauze mask lamella 4 of being connected with the lamella fixed band.
The sheet layer fixing belt comprises a rectangular fixing frame 1 and a lacing 2 connected with the rectangular fixing frame 1; two short edges of the rectangular fixing frame 1 are respectively and independently connected with tying belts 2. Two sides of the rectangular fixing frame 1 connected with the tying belts 2 are respectively and independently provided with 2 tensioning pieces 3. The 2 tensioning pieces 3 are respectively arranged at two ends of the short edge of the rectangular fixed frame 1.
The upper portion of the inner side of the mask sheet layer 4 is provided with a metal pressing strip 5, and two ends of the mask sheet layer 4 are provided with tensioning holes 6 matched with the tensioning pieces 3.
The rectangular fixing frame 1 is made of elastic fiber ropes, and the length of the short edge of the rectangular fixing frame is 55 mm; the width of the mask sheet layer 4 is 72 mm.
The tensioning piece 3 is a plastic hook.
The metal pressing strip 5 is an aluminum alloy pressing strip.
In the embodiment, the mask sheet layer 4 can be stably fixed on the face of a wearer by arranging the rectangular fixing frame 1, the tensioning piece 3 and the corresponding tensioning hole 6, and the mask can be attached to the face of the wearer by matching with the metal pressing strip 5; meanwhile, the mask sheet layer 4 can be replaced at will through the tensioning hole 6 and the tensioning piece 3.
Example 5
This embodiment provides a gauze mask convenient to change lamella, gauze mask convenient to change lamella includes lamella fixed band and the gauze mask lamella 4 of being connected with the lamella fixed band.
The sheet layer fixing belt comprises a rectangular fixing frame 1 and a lacing 2 connected with the rectangular fixing frame 1; two short edges of the rectangular fixing frame 1 are respectively and independently connected with tying belts 2. Two sides of the rectangular fixing frame 1 connected with the tying belts 2 are respectively and independently provided with 2 tensioning pieces 3. The 2 tensioning pieces 3 are respectively arranged at two ends of the short edge of the rectangular fixed frame 1.
The upper portion of the inner side of the mask sheet layer 4 is provided with a metal pressing strip 5, and two ends of the mask sheet layer 4 are provided with tensioning holes 6 matched with the tensioning pieces 3.
The rectangular fixing frame 1 is made of elastic fiber ropes, and the length of the short edge of the rectangular fixing frame is 60 mm; the width of the mask sheet layer 4 was 75 mm.
The tensioning piece 3 is a plastic hook.
The metal pressing strip 5 is an aluminum alloy pressing strip.
In the embodiment, the mask sheet layer 4 can be stably fixed on the face of a wearer by arranging the rectangular fixing frame 1, the tensioning piece 3 and the corresponding tensioning hole 6, and the mask can be attached to the face of the wearer by matching with the metal pressing strip 5; meanwhile, the mask sheet layer 4 can be replaced at will through the tensioning hole 6 and the tensioning piece 3.
Example 6
This embodiment provides a gauze mask convenient to change lamella, the schematic diagram of the structure of the gauze mask of the lamella of being convenient for change is shown in fig. 2, including lamella fixed band and the gauze mask lamella 4 of being connected with the lamella fixed band.
The sheet layer fixing belt comprises a rectangular fixing frame 1 and a lacing 2 connected with the rectangular fixing frame 1; two short edges of the rectangular fixing frame 1 are respectively and independently connected with tying belts 2. The rectangular fixing frame 1 is connected with the tying belts 2, and two sides of the tying belts 2 are respectively and independently provided with 3 tensioning pieces 3. The 3 tensioning pieces 3 are respectively arranged at the upper part, the middle part and the lower part of the short edge of the rectangular fixed frame 1.
The upper portion of the inner side of the mask sheet layer 4 is provided with a metal pressing strip 5, and two ends of the mask sheet layer 4 are provided with tensioning holes 6 matched with the tensioning pieces 3.
The rectangular fixing frame 1 is made of elastic fiber ropes, and the length of the short edge of the rectangular fixing frame is 50 mm; the width of the mask sheet layer 4 was 70 mm.
The tensioning piece 3 is a plastic hook.
The metal pressing strip 5 is an aluminum alloy pressing strip.
In the embodiment, the mask sheet layer 4 can be stably fixed on the face of a wearer by arranging the rectangular fixing frame 1, the tensioning piece 3 and the corresponding tensioning hole 6, and the mask can be attached to the face of the wearer by matching with the metal pressing strip 5; meanwhile, the mask sheet layer 4 can be replaced at will through the tensioning hole 6 and the tensioning piece 3.
When the mask provided by the embodiments 1 to 6 and facilitating replacement of the sheet layer is used, the tension piece 3 is matched with the tension hole 6, so that the tension piece 3 is connected with the matched tension hole 6; when the mask convenient for replacing the sheet layer is worn, the lacing 2 is pulled to fix the lacing 2 on the ear of a wearer, and the sheet layer fixing belt is driven by the lacing 2 to stretch along the length direction, so that the tensioning piece 3 pulls the inner wall of the tensioning hole 6 to fix the mask sheet layer 4, and the mask sheet layer 4 is made to cling to the face of the wearer; then the mask sheet layer 4 is attached to the face of the wearer by the action of the metal batten 5.
Comparative example 1
This comparative example provides a gauze mask convenient to change lamella, the schematic diagram of the structure of the gauze mask convenient to change lamella is shown in figure 1, including lamella fixed band and the gauze mask lamella 4 of being connected with the lamella fixed band.
The sheet layer fixing belt comprises a rectangular fixing frame 1 and a lacing 2 connected with the rectangular fixing frame 1; two short edges of the rectangular fixing frame 1 are respectively and independently connected with tying belts 2. Two sides of the rectangular fixing frame 1 connected with the tying belts 2 are respectively and independently provided with 2 tensioning pieces 3. The 2 tensioning pieces 3 are respectively arranged at two ends of the short edge of the rectangular fixed frame 1.
And two ends of the mask sheet layer 4 are provided with tensioning holes 6 matched with the tensioning pieces 3.
The rectangular fixing frame 1 is made of elastic fiber ropes, and the length of the short edge of the rectangular fixing frame is 50 mm; the width of the mask sheet layer 4 was 70 mm.
The tensioning piece 3 is a plastic hook.
Because the gauze mask lamella 4 of this comparison example does not set up metal layering 5, can't make gauze mask lamella 4 and the facial laminating of wearer during long square fixed frame 1 when using, there is great space on the upper portion of gauze mask lamella 4.
To sum up, the utility model can stably fix the mask sheet layer on the face of the wearer by the rectangular fixing frame, the tensioning piece and the corresponding tensioning hole, and can make the mask fit with the face of the wearer by matching with the use of the metal layering; meanwhile, the mask sheet layer can be replaced at will through the tensioning hole and the tensioning piece.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (10)
1. The mask convenient for replacing the sheet layer is characterized in that the mask convenient for replacing the mask sheet layer comprises a sheet layer fixing belt and a mask sheet layer connected with the sheet layer fixing belt;
the sheet layer fixing belt comprises a rectangular fixing frame and a lace connected with the rectangular fixing frame; two sides of the rectangular fixing frame connected with the tying belt are respectively and independently provided with at least 1 tensioning piece;
the upper portion of the inner side of the mask sheet layer is provided with a metal pressing strip, and two ends of the mask sheet layer are provided with tensioning holes matched with the tensioning pieces.
2. The mask with a replaceable sheet according to claim 1, wherein the rectangular fixing frame is made of a fiber rope.
3. The mask as claimed in claim 1 or 2, wherein the tension member is a plastic hook.
4. The mask with a replaceable sheet according to claim 3, wherein 1 to 3 tension members are independently provided on each side of the rectangular fixing frame to which the fastening band is connected.
5. The mask with a replaceable sheet according to claim 4, wherein the rectangular fixing frame is provided with 2 tightening members at two sides connected with the tying band, respectively.
6. The mask of claim 5 wherein the metal bead is an aluminum alloy bead.
7. The mask with a replaceable sheet as claimed in claim 5 or 6, wherein the rectangular fixing frame has two short sides connected with ties independently.
8. The mask with easy-to-replace sheet as claimed in claim 7, wherein the 2 tightening pieces are respectively disposed at both ends of the short side of the rectangular fixing frame.
9. The mask allowing for easy replacement of the sheet as claimed in claim 7, wherein the rectangular fixing frame has a short side length of 40-60 mm.
10. The mask of claim 9 wherein the width of the mask sheet is 65-75 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021852893.XU CN213128135U (en) | 2020-08-28 | 2020-08-28 | Mask convenient to replace lamella |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021852893.XU CN213128135U (en) | 2020-08-28 | 2020-08-28 | Mask convenient to replace lamella |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213128135U true CN213128135U (en) | 2021-05-07 |
Family
ID=75742231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021852893.XU Active CN213128135U (en) | 2020-08-28 | 2020-08-28 | Mask convenient to replace lamella |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213128135U (en) |
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2020
- 2020-08-28 CN CN202021852893.XU patent/CN213128135U/en active Active
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