CN220916654U - Plane and stereo dual-purpose mask for preventing virus infectious disease - Google Patents
Plane and stereo dual-purpose mask for preventing virus infectious disease Download PDFInfo
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- CN220916654U CN220916654U CN202321755146.8U CN202321755146U CN220916654U CN 220916654 U CN220916654 U CN 220916654U CN 202321755146 U CN202321755146 U CN 202321755146U CN 220916654 U CN220916654 U CN 220916654U
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- mask
- infectious disease
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- purpose anti
- dimensional dual
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- 208000035473 Communicable disease Diseases 0.000 title claims abstract description 19
- 208000015181 infectious disease Diseases 0.000 title claims abstract description 16
- 241000700605 Viruses Species 0.000 title abstract description 13
- 230000003405 preventing effect Effects 0.000 title description 22
- 230000001815 facial effect Effects 0.000 claims abstract description 13
- 230000002155 anti-virotic effect Effects 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims description 23
- 239000004745 nonwoven fabric Substances 0.000 claims description 14
- 239000010410 layer Substances 0.000 claims description 10
- 239000011241 protective layer Substances 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 6
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000000840 anti-viral effect Effects 0.000 claims 9
- 230000000694 effects Effects 0.000 abstract description 8
- 241000894006 Bacteria Species 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 210000002345 respiratory system Anatomy 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000002924 anti-infective effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000001097 facial muscle Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
- A41D13/1115—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a horizontal pleated pocket
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1161—Means for fastening to the user's head
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/18—Elastic
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model provides a plane, three-dimensional dual-purpose anti-virus infectious disease gauze mask, includes the gauze mask main part, and the both sides of gauze mask main part are equipped with the ear area, the inboard on the long limit of gauze mask main part is equipped with airtight leak protection strip, or the inboard on long limit and minor face all is equipped with airtight leak protection strip. By arranging the airtight leak-proof strip, gaps are difficult to appear between the mask and the facial skin even in the speaking and inhaling and exhaling processes, viruses, bacteria and the like can be prevented from entering or exhaling into the respiratory tract, the protection effect on the wearer is improved, and the harm of the viruses to other people can be prevented.
Description
Technical Field
The utility model relates to an anti-virus mask, in particular to a plane and three-dimensional dual-purpose mask for preventing virus infectious diseases.
Background
The existing anti-infectious disease mask, in particular to a medical plane surgical mask, lacks of side leakage prevention measures, causes insufficient airtight bonding between the side wall of the periphery of the mask and the face skin, breathes, and particularly when speaking loudly, gaps can be generated between the mask and the face skin, so that viruses, bacteria and the like easily enter human respiratory tracts from the gaps between the side wall periphery of the mask and the face skin, the anti-virus effect of the plane mask is more than 70%, the anti-virus effect of the KN95 mask is more than 95%, and the effective protective effect cannot be achieved. When epidemic situation transmission is serious, a greater potential safety hazard exists.
Furthermore, the tightness of wearing of the ear belt of the existing mask can not be adjusted, the mask can only be hung on the root of the ear of the wearer through the ear belt, and the wearer is difficult to wear stably and tightly.
Third, when wearing, the plane mask body is attached to the mouth and nose of the human face, the ventilation area and space are small, and wearing is not comfortable enough.
Disclosure of utility model
The utility model aims to overcome the defect of poor side leakage prevention performance of the existing mask, and provides a planar and three-dimensional dual-purpose mask for preventing virus infectious diseases, which has good side leakage prevention performance and good virus protection effect.
The second technical problem to be solved by the utility model is to overcome the defect that the wearing tightness of the ear belt of the existing mask cannot be adjusted, and provide a planar and three-dimensional dual-purpose anti-virus infectious disease mask with adjustable wearing tightness of the ear belt, better leak-proof performance and better virus protection effect.
The third technical problem to be solved by the utility model is to overcome the defect that the existing mask is not comfortable to wear, and provide a planar and three-dimensional dual-purpose mask for preventing viral infectious diseases, which has proper ventilation space and good wearing comfort.
The utility model solves the first technical problem by adopting the technical scheme that: the utility model provides a plane, three-dimensional dual-purpose anti-virus infectious disease gauze mask, includes the gauze mask main part, and the both sides of gauze mask main part are equipped with the ear area, the inboard of the long limit of gauze mask main part is equipped with airtight leak protection strip, or the inboard of long limit and minor face all is equipped with airtight leak protection strip.
Further, a support adhered with a leakage-proof foam strip or a support with a leakage-proof inner curled edge is arranged between the mask main body and the leakage-proof strip. So as to further improve the side leakage prevention performance and enhance the air tightness of the mask.
Further, the leakproof strip, the leakproof foam strip or the leakproof inner curled edge is made of flexible materials such as laminated non-woven fabrics, plastic impermeable cloth or breathable electrostatic filter cloth, latex films and the like. The laminated non-woven fabric, the plastic airtight cloth or the breathable electrostatic filter cloth, the latex film and the like are flexible materials with elasticity, after the mask is worn, the leakproof strips, the leakproof foam strips or the leakproof inner curled edges which are made of the flexible materials can be closely attached to the skin of the face, and are easy to deform along with the shape changes of different facial forms, namely, different facial curves can be attached, so that the air tightness of the mask can be further effectively enhanced.
Further, a large-radian plastic nose clip or a reinforced metal nose clip is arranged at the position of the bracket corresponding to the nose bridge of the person,
Further, the stent is a flexible stent.
Further, the flexible support is a contractible and foldable flexible support.
Further, when the length of the short side of the mask main body, namely the length of the left side and the length of the right side of the mask main body are smaller than half of the widest vertical width of the mask main body after being unfolded in the up-down direction, the upper edge and the lower edge of the mask are provided with leakage-proof strips; when the length of the short side of the mask body, namely the length of the left side and the length of the right side of the mask body are larger than half of the widest vertical width of the mask body after being unfolded in the up-down direction, the left side and the right side of the mask body are respectively additionally provided with a leakage-proof strip; the width of the leakage preventing strip is 1-3cm.
Further, the 2 leakproof strips on the upper and lower sides of the long side of the mask body are formed by inwards bending the upper and lower sides of the long side of the mask body after being widened into 2 leakproof strips. The structure has the advantages that the leak-proof strip and the mask body are integrated, so that the manufacturing process can be simplified, and the manufacturing cost can be reduced. The width of the longer side of the mask body is preferably 1-4cm.
Further, the mask body comprises an outer non-woven fabric protective layer, an electrostatic filter cloth layer and an inner non-woven fabric protective layer from outside to inside, and the periphery of the inner non-woven fabric protective layer is 1cm-3cm smaller than that of the electrostatic filter cloth layer. Thus, the periphery of the electrostatic filter cloth layer forms a bare ring with the width of 1cm-3cm. When the mask is worn, the exposed ring of the electrostatic filter cloth filter layer is directly stuck to the face skin, and the mask is further prevented from leaking from the periphery of the mask through electrostatic adsorption.
The utility model solves the second technical problem by adopting the technical problem that an ear belt at one side of the mask main body is provided with a backstop adjusting pipe and a hook or a zigzag backstop adjusting hook. When the high-risk area is entered, the hook on one side is immediately hooked on the other side, and the ear belt is pulled tightly, so that the ear belt can be converted into the head belt for use, and the head belt is more stable to wear, so that the air tightness is further enhanced.
The utility model solves the third technical problem that the radian of the leak-proof foam strips or the leak-proof inner curled edges at the periphery of the bracket is identical with the radian of the nose and face of a Chinese adult human mouth specified by the head type of the Chinese national standard GB/T2428-1981, and when the mask is worn, the height of the cambered surface dimension of the air inlet face of the mask body is 0.3-2cm away from the skin of the face. When the mask is worn, a proper breathing and ventilation space is reserved between the mask main body and the mouth and the nose of a person, so that the top of the air inlet surface of the mask main body is prevented from being in direct contact with the mouth and the nose of the person when the mask is worn, the harmful space can be reduced, the waste gas inhalation is reduced, and the wearing comfort is enhanced.
According to the mask, the inner side of the long side or the inner sides of the long side and the short side (namely the side where the mask is attached to the facial skin) of the mask main body is provided with the airtight leak-proof strip, the leak-proof strip can be better attached to the facial skin, and even in the process of inhalation and exhalation, particularly in the process of loud speaking, gaps are difficult to appear between the mask and the facial skin, viruses, bacteria and the like can be prevented from entering human respiratory tract or viruses and bacteria carried by exhaled air and entering the outside air of the mask, so that the protection effect on the wearer is improved, and the harm of the viruses to other people can be prevented; the more improved preferable schemes can further enhance the air tightness of the mask, improve the anti-virus effect or improve the wearing comfort at the same time.
By using the utility model, through selecting the filter cloth with different filtering efficiencies, for example, the electrostatic filter cloth with the filtering efficiencies of more than or equal to 95 percent, more than or equal to 99 percent and more than or equal to 99.9 percent, the mask with different protection grades, for example, the KN90 mask, the KN95 mask, the N98 mask, the KN99 mask and the like can be manufactured, so as to adapt to the requirements of the mask wearers with different risk areas, different risk industries and different protection grades.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present utility model;
FIG. 2 is a schematic structural diagram of embodiment 2 of the present utility model;
FIG. 3 is a schematic diagram of a filter cloth folding manner according to embodiment 1 of the present utility model;
fig. 4 is a schematic diagram of a filter cloth folding manner of the mask in embodiment 2 of the present utility model;
Fig. 5 is a schematic diagram of a filter cloth folding manner of a mask in embodiment 4 of the present utility model;
FIG. 6 is a schematic structural view of a flexible stent of the present utility model;
FIG. 7 is an enlarged schematic view of the serrated backstop adjustment hook of FIG. 1 passing through an ear strap;
Fig. 8 is an enlarged schematic view of the shape and structure of the backstop regulator tube of fig. 2 passing through the ear band.
In the figure: 1. the mask comprises a mask body, 2, a first leakage preventing strip, 3, a second leakage preventing strip, 4, an ear strap, 5, a hook, 6, a flexible support, 7, a non-return adjusting pipe, 8 and a serrated non-return adjusting hook.
Detailed Description
The utility model will be described in further detail with reference to the accompanying drawings and specific examples.
Example 1
Referring to fig. 1, 3, 6 and 7, the embodiment comprises a mask body 1, ear bands 4 are arranged on two sides of the mask body 1, a first leakage preventing strip 2 is arranged on the inner side of a long edge of the mask body 1, and a flexible bracket 6 which is adhered with leakage preventing foam strips (or inner curled edges with leakage preventing effect) is arranged between the mask body 1 and the first leakage preventing strip 2; the ear belt 4 on one side of the mask body 1 is provided with a serrated non-return adjusting hook 8 (the serrated non-return adjusting hook 8 has a shape and structure as shown in fig. 7, and the serrated teeth in the hole can prevent the ear belt 4 passing through the serrated non-return adjusting hook from sliding out reversely, and the function of the serrated non-return adjusting hook is to adjust the wearing tightness of the mask, so the serrated non-return adjusting hook is called as a serrated non-return adjusting hook). After the mask is worn, the serrated backstop adjusting hooks 8 on one side of the ear belt 4 are hung on the ear belt 4 on the other side, and the ear belt is tightened, so that the first leakage preventing strip 2 can be better clung to the facial skin; the earroots do not feel uncomfortable, and the air tightness is better.
The flexible support 6 can enable the mask main body to be outwards protruded, so that the mouth and nose are prevented from being directly contacted with the mask main body, the breathing resistance is small, the wearing is more comfortable, and the protection effect is better.
In this embodiment, a nose clip is provided at the position of the flexible support 6 corresponding to the bridge of the nose. The mask is used for attaching the mask to the nose bridge of the face and the skin nearby the nose bridge so as to enhance the air tightness.
The first leakproof strip 2 is preferably made of a latex film (also can be made of a non-breathable laminated non-woven fabric, plastic air-impermeable cloth or breathable electrostatic filter cloth), the latex film is particularly good in flexibility and easy to deform along with the deformation of the face, and can be used for preventing people from speaking loudly more effectively, and gaps are generated between the leakproof strip and the skin of the face when the shape of the facial muscles changes.
Example 2
Referring to fig. 2, 3 and 8, the difference between this embodiment and embodiment 1 is that only one side of the ear strap 4 is provided with a backstop adjusting tube 7, the ear strap 4 passes through the backstop adjusting tube 7 (the structure of the backstop adjusting tube 7 is shown in fig. 8, the inner wall of the backstop adjusting tube is provided with bevel teeth capable of preventing the ear strap 4 passing through the backstop adjusting tube from sliding out of the tube in the reverse direction, and the whole function is to adjust the wearing tightness of the mask, so the backstop adjusting tube is called as a backstop adjusting tube), and the other side of the ear strap 4 is provided with a hook 5 (the ear strap 7 and the ear strap 5 can be combined into a whole); the width of the two sides of the mask body 1 is larger than half of the total width of the mask body 1 (see figure 4), and the left side and the right side of the mask body 1 are also provided with second leakage-proof strips 3, and the width of the second leakage-proof strips 3 is 1-3cm. When the mask is worn, the hook 5 is hung on the end part of the ear belt 4 penetrating through the backstop adjusting pipe 7, the ear belt 4 is tensioned, the first leakage preventing strip 2 and the second leakage preventing strip 3 can be better clung to the facial skin, gaps between the first leakage preventing strip 2, the second leakage preventing strip 3 and the facial skin can be avoided when the facial skin muscles are deformed during loud speaking, and the leakage preventing strips 2 and 3 can still be effectively clung to the facial skin all the time, so that the side leakage preventing performance of the mask is further improved, and the virus preventing capability of the mask is enhanced.
The backstop regulating tube 7 may be replaced with a serrated backstop regulating hook 8.
Example 3
Referring to fig. 1 and 4, the difference between this embodiment and embodiment 1 is that the width of the mask body 1 after folding the shorter sides (i.e., the left and right sides) is one-half to two-thirds of the width before folding; the arc of the arc surface of the flexible support 6 of the lining is slightly larger, and the arc of the nose and face of the adult human body in China, which is regulated by the adult human head type of China standard GB/T2428-1981, is taken as the principle; the height of the cambered surface of the air inlet surface is 0.4-2cm away from the facial skin; when the mask is worn, the top of the air inlet surface of the mask body is prevented from being in direct contact with the mouth and nose of a person, and the wearing comfort can be enhanced; is made of thermoplastic plastics.
The inner side of the flexible support 6 can be lined with filter cloth layers with different protection levels of filtering efficiency to manufacture masks with different protection levels, such as N95 and N99 anti-virus masks, so as to be respectively applicable to operators in different risk areas and different risk industries for wearing.
Example 4
Referring to fig. 1 and 5, the difference between the present embodiment and embodiment 1 is that the mask body 1 is widened by 1-4cm, and the upper and lower edges are folded inwards by the same width of 1-4cm, so as to form a leakage-proof strip, that is, the mask body and the leakage-proof strip are integrated, so that the manufacturing process is simplified; the surface of the mask main body 1 is provided with a non-woven fabric protective layer; the mask body 1 comprises an outer non-woven fabric protective layer, an electrostatic filter cloth filter layer and an inner non-woven fabric protective layer from outside to inside, wherein the periphery of the inner non-woven fabric protective layer is 1cm-3cm smaller than that of the electrostatic filter cloth filter layer. This can reduce leakage at the peripheral face of the mask body 1, further improving the air tightness. The upper and lower edges of the widened mask body 1 are folded inwards to form a folding method of the first leakproof strip 2, see fig. 5.
Likewise, the inner side of the flexible support 6 can be lined with filter cloth layers with different protection levels of filtering efficiency to manufacture masks with different protection levels, such as KN90, KN95 and KN99 virus-proof masks, so as to be respectively suitable for operators in different risk areas and different risk industries to wear.
Regarding the structure of the flexible stent 6:
The flexible support 6 can be of various structures. One of the plastic brackets used in the embodiment shown in fig. 1. The thickness of each rib forming the flexible bracket is consistent. Fig. 6 shows another stent structure with thinner ribs in the middle of the stent structure. The flexible support with the structure is convenient to shrink and fold. The stent shown in fig. 6 is also provided with leak-proof inner curls and nose clips. But are not marked.
Various modifications and variations of the present utility model may be made by those skilled in the art, and, provided that they are within the scope of the appended claims and their equivalents, they are also within the scope of the present utility model.
What is not described in detail in the specification is prior art known to those skilled in the art.
Claims (10)
1. The utility model provides a plane, three-dimensional dual-purpose anti-virus infectious disease gauze mask, includes the gauze mask main part, and the both sides of gauze mask main part are equipped with the ear area, its characterized in that, the inboard of the long limit of gauze mask main part is equipped with airtight leak protection strip, or the inboard of long limit and minor face all is equipped with airtight leak protection strip.
2. The planar and three-dimensional dual-purpose anti-viral infectious disease mask according to claim 1, wherein: a support adhered with a leakage-proof foam strip or a support with a leakage-proof inner curled edge is arranged between the mask main body and the leakage-proof strip.
3. The planar and three-dimensional dual-purpose anti-viral infectious disease mask according to claim 1 or 2, wherein: the leak-proof strip is made of a flexible material laminated non-woven fabric, a plastic airtight cloth or an air-permeable electrostatic filter cloth or a latex film.
4. The planar, three-dimensional dual-purpose anti-viral infectious disease mask as claimed in claim 2, wherein: the bracket is provided with a plastic nose clip or a metal nose clip at the nose bridge; the support is a flexible support which can be contracted and folded.
5. The planar and three-dimensional dual-purpose anti-viral infectious disease mask according to claim 1 or 2, wherein: the ear belt on one side of the mask body is provided with a backstop adjusting pipe and a hook or a zigzag backstop adjusting hook.
6. The planar and three-dimensional dual-purpose anti-viral infectious disease mask according to claim 1 or 2, wherein: when the length of the short side of the mask main body, namely the length of the left side and the length of the right side of the mask main body are smaller than half of the widest vertical width of the mask main body after being unfolded in the up-down direction, the upper edge and the lower edge of the mask are provided with leakage-proof strips; when the length of the short side of the mask body, namely the length of the left side and the length of the right side of the mask body are larger than half of the widest vertical width of the mask body after being unfolded in the vertical direction, leakage-proof strips with the width of 1 cm to 3cm are respectively additionally arranged on the left side and the right side of the mask body.
7. The planar and three-dimensional dual-purpose anti-viral infectious disease mask according to claim 1 or 2, wherein: the upper and lower 2 leakproof strips on the long side of the main body are formed by inwards bending the upper and lower two sides of the long side of the mask main body after being widened to be 2 leakproof strips in width.
8. The planar, three-dimensional dual-purpose anti-viral infectious disease mask as defined in claim 7, wherein: the mask body comprises an outer non-woven fabric protective layer, an electrostatic filter cloth layer and an inner non-woven fabric protective layer from outside to inside, wherein the periphery of the inner non-woven fabric protective layer is 1cm-3cm smaller than that of the electrostatic filter cloth layer.
9. The planar, three-dimensional dual-purpose anti-viral infectious disease mask as claimed in claim 2, wherein: the radian of the periphery of the bracket is matched with the radian of the nose and face of a Chinese adult human mouth specified by the Chinese national standard GB/T2428-1981 adult head form.
10. The planar, three-dimensional dual-purpose anti-viral infectious disease mask as defined in claim 9, wherein: after wearing, the distance between the mask main body and the facial skin is 0.3-2cm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221912508 | 2022-07-20 | ||
| CN2022219125085 | 2022-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220916654U true CN220916654U (en) | 2024-05-10 |
Family
ID=89545111
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310820485.8A Pending CN117426589A (en) | 2022-07-20 | 2023-07-06 | Plane and stereo dual-purpose mask for preventing virus infectious disease |
| CN202321755146.8U Active CN220916654U (en) | 2022-07-20 | 2023-07-06 | Plane and stereo dual-purpose mask for preventing virus infectious disease |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310820485.8A Pending CN117426589A (en) | 2022-07-20 | 2023-07-06 | Plane and stereo dual-purpose mask for preventing virus infectious disease |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN117426589A (en) |
-
2023
- 2023-07-06 CN CN202310820485.8A patent/CN117426589A/en active Pending
- 2023-07-06 CN CN202321755146.8U patent/CN220916654U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN117426589A (en) | 2024-01-23 |
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