CN212345428U - Protective facial mask with adjustable size - Google Patents
Protective facial mask with adjustable size Download PDFInfo
- Publication number
- CN212345428U CN212345428U CN202020678893.6U CN202020678893U CN212345428U CN 212345428 U CN212345428 U CN 212345428U CN 202020678893 U CN202020678893 U CN 202020678893U CN 212345428 U CN212345428 U CN 212345428U
- Authority
- CN
- China
- Prior art keywords
- mask body
- shaped
- rope
- fan
- tightening rope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model provides a protective facial mask with adjustable size, wades protective facial mask technical field, solves current protective facial mask's size and can not adjust, and the poor technique of suitability is not enough, and the technological means of adoption is including: the mask comprises a mask body, wherein a nose clip and an elastic ear hook are arranged on the mask body, and the mask is characterized in that the mask body comprises a rectangular arc surface, an upper fan-shaped arc surface and a lower fan-shaped arc surface, U-shaped pipes are arranged at the left side edge, the right side edge and the lower side edge of the mask body, and two ends of the lower part of each U-shaped pipe are provided with notches; the U-shaped pipe is internally and movably provided with a tightening rope, the two end parts of the tightening rope are respectively fixed in the two top end parts of the U-shaped pipe, and the tightening rope body respectively extends outwards from the two notches and is movably connected with a double-hole spring rope buckle. The utility model discloses a width and the length that gauze mask body was adjusted to tighten up rope and diplopore spring cord fastener make the gauze mask body can be applicable to different users' face type, and the suitability is strong and convenient to use. In addition, the upper fan-shaped cambered surface can cover the nose bridge part of a user, the lower fan-shaped cambered surface can cover the lower jaw part of the user, and the sealing effect is good.
Description
Technical Field
The utility model relates to a protective facial mask technical field, more specifically relate to a protective facial mask with adjustable size.
Background
With the outbreak and epidemic situation of pneumonia, people in public places need to wear medical protective masks to protect people from being invaded by viruses. Meanwhile, people working in places with serious virus pollution, such as hospitals, need to wear medical protective masks with higher protection level and better virus prevention effect. In addition, a dust-proof mask is required to be worn when the mask works in places with excessive inhalable pollution particles. At present, the application range is wide, and most of the traditional Chinese medicine mask is a disposable medical protective mask or dust mask. Almost all the protective masks which can be conveniently purchased in the market are standard models, and the size of the mask body can not be adjusted. However, due to the prevalence of viruses and other reasons, the users of the protective mask are not limited to adults, but also include people with different facial features such as minors and the elderly, and when wearing the protective mask with the standard model, the mask body is often too large relative to the user, so that the gap between the face of the user and the mask body is too large, and the protective mask cannot play a role in sealing protection. Or the mask body is too small relative to the user, so that the positions of the cheeks or the mandible on both sides of the user are exposed outside the mask body, the mask body is not tightly attached to the facial skin of the user, and the protection purpose cannot be achieved.
Therefore, there is a need for an improved protective mask that can be adapted for use by people of different ages and different facial shapes.
SUMMERY OF THE UTILITY MODEL
To sum up, the utility model discloses an aim at solves the protective facial mask size of current standard model and can not adjust, and the people that is unsuitable different ages, different types of face uses, and the poor technique of suitability is not enough, and provides a protective facial mask with adjustable size.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a protective mask with adjustable size comprises a mask body, wherein a nose clip is arranged at the upper edge of the outer side surface of the mask body, and elastic ear loops are symmetrically arranged on two side edges of the mask body; the middle part of the mask body is a rectangular arc surface with a bulged middle part, the upper part of the rectangular arc surface is connected with a fan-shaped upper fan-shaped arc surface capable of covering the nose bridge part of a human body, the lower part of the rectangular arc surface is connected with a fan-shaped lower fan-shaped arc surface capable of covering the lower jaw part of the human body, and the upper fan-shaped arc surface, the rectangular arc surface and the lower fan-shaped arc surface form a cup-shaped mask body and are buckled on the lower jaw part and the mouth-nose part of a; the left and right side edges of the mask body and the lower edge of the lower fan-shaped cambered surface are folded towards the inner side surface of the mask body, and the edges and the inner side surface of the mask body are sealed in an adhesive pressing and bonding mode to form a U-shaped pipe structure communicated with the inside; notches for communicating the inside and the outside of the U-shaped pipe are formed at the left end point and the right end point of the lower part of the U-shaped pipe; a vertical tightening rope is movably arranged in the left vertical pipeline and the right vertical pipeline of the U-shaped pipe respectively, the upper end part of the vertical tightening rope is fixedly connected to the upper end part in the vertical pipeline, and the lower end part of the vertical tightening rope extends out of the notch; a horizontal tightening rope is movably arranged in the horizontal pipeline at the lower part of the U-shaped pipe, and two end parts of the horizontal tightening rope respectively extend outwards from the left gap and the right gap; the vertical tightening rope and the horizontal tightening rope which extend outwards from the same gap are movably connected through a double-hole spring rope buckle.
The end parts of the vertical tightening rope and the horizontal tightening rope extending from the same gap are connected together to prevent the double-hole spring rope buckle from falling off.
The mask body comprises a waterproof non-woven fabric layer on the inner side face and a needle-punched cotton layer on the outer side face, a three-layer melt-blown fabric layer is arranged between the waterproof non-woven fabric layer and the needle-punched cotton layer, and a one-way breather valve which is used for exhausting outside the mask and penetrates through the waterproof non-woven fabric layer, the melt-blown fabric layer and the needle-punched cotton layer is arranged on the rectangular arc face of the mask body.
The upper edge of gauze mask body medial surface transversely is equipped with a gel pad, the length of gel pad and the length phase-match of gauze mask body upper edge, the width of gel pad is not less than the interval between nose presss from both sides lower limb to gauze mask body upper edge.
The elastic ear hanger is movably sleeved with a gel ear hanger sleeve with adjustable position, and the gel ear hanger sleeve can fit the outline of the back side surface of the auricle of a user.
And the outside of the double-hole spring rope buckle is coated with a silica gel sleeve.
The utility model has the advantages that: the utility model discloses a width that gauze mask body was adjusted to vertical tightening rope that gauze mask body both sides limit department vertical pipeline internalization set up, the length of gauze mask body is adjusted to horizontal tightening rope that sets up along the horizontal pipeline internalization of border department under the human lower jaw portion through the cladding simultaneously, and tighten up the gauze mask body after the rope is adjusted and carry out the card through swing joint at vertical tightening rope and level two hole spring rope fastener on tightening up the rope, each limit that makes the gauze mask body is hugged closely on user's facial skin, prevent that the gauze mask body from extending and the reconversion along tightening up the rope, realized the regulation to gauze mask body size, guaranteed the utility model discloses can be applicable to the people of different age groups and different face types and use, improved the utility model discloses an suitability.
Including the middle part uplift of last fan-shaped cambered surface and the rectangle cambered surface through the gauze mask body completely wraps user's bridge of the nose, effectively solved because of the protruding gauze mask body that leads to of user's bridge of the nose on along the problem that does not closely lead to the protection leak with the laminating of bridge of the nose, improved the utility model discloses a security. Simultaneously, the lower fan-shaped cambered surface of gauze mask body lower part overlaps in user's lower jaw position department, then tightens up the lower border of fan-shaped cambered surface under the gauze mask body and the both sides border of gauze mask body according to user's lower jaw wheel profile and cheek both sides profile through the taut vertical tightening rope of diplopore spring rope buckle simultaneously and tighten up, laminates with user's skin completely up to gauze mask lower part border and both sides border, easy operation, and convenient to use has improved the utility model discloses a convenience in use.
Drawings
FIG. 1 is a schematic view of the overall front structure of the present invention;
fig. 2 is a schematic view of the inner side surface of the mask body of the utility model;
FIG. 3 is a schematic structural view of the dual-hole spring rope buckle of the present invention;
fig. 4 is a schematic view of the overall wearing state of the utility model;
fig. 5 is a schematic cross-sectional view of the mask body of the present invention.
Detailed Description
The structure of the present invention will be further described with reference to the accompanying drawings and preferred embodiments of the present invention.
Referring to fig. 1, the utility model discloses:
the utility model provides a protective facial mask with adjustable size, is including gauze mask body 1, and the middle part of gauze mask body 1 is the rectangle cambered surface 11 of a middle part uplift, is connected with a sectorial last fan-shaped cambered surface 12 at the top edge of this rectangle cambered surface 11, and the arc of this last fan-shaped cambered surface 12 and the top edge accordant connection of rectangle cambered surface 11, the last border of going up fan-shaped cambered surface meets and is in the coplanar with the both sides border of rectangle cambered surface 11. The lower edge of the rectangular arc surface 11 is connected with a fan-shaped lower fan-shaped arc surface 13, the arc of the lower fan-shaped arc surface 13 is connected with the lower edge of the rectangular arc surface 11 in a matching manner, and the lower edge of the lower fan-shaped arc surface is connected with two side edges of the rectangular arc surface 11 and is positioned in the same plane. The upper fan-shaped cambered surface 12, the rectangular cambered surface 11 and the lower fan-shaped cambered surface 13 are combined to form the mask body 1 which is similar to a cup-shaped structure and has a bulged middle part. The ridge in the middle of the mask body 1 is matched with the upper fan-shaped cambered surface 12 to completely wrap the mouth and nose parts of a user in the mask body 1, and the ridge in the middle of the mask body 1 is matched with the lower fan-shaped cambered surface 13 to wrap the lower jaw parts of the user in the mask body 1. The utility model discloses this kind of cup structural design of gauze mask body 1 can avoid causing the untight problem of laminating between gauze mask body 1 and user's skin because of the arch of user nose portion and the lower jaw portion profile, has improved the utility model discloses a reliability.
Specifically, referring to fig. 2, the left and right edges of the mask body 1 and the lower edge of the lower fan-shaped arc 13 are folded toward the inner side of the mask body 1, and the edges are sealed with the inner side of the mask body 11 by gluing to form a U-shaped tube 14 structure with an inner portion communicated with each other. Notches 141 for communicating the inside and the outside of the U-shaped pipe 14 are formed at both left and right end points of the lower portion of the U-shaped pipe 14 (i.e., at the joint positions of the lower ends of the left and right vertical pipes 142 and the left and right ends of the lower horizontal pipe 143). The left vertical pipeline 142 and the right vertical pipeline 142 of the U-shaped pipe 14 are respectively and movably provided with a vertical tightening rope 41, the upper end part of each vertical tightening rope 41 is fixedly connected to the upper end part of the vertical pipeline 13 in a glue pressing and bonding mode, and the lower end part of each vertical tightening rope 41 extends outwards from the notch 141 at the lower end of the vertical pipeline 142 where the vertical tightening rope is located. A horizontal tightening rope 42 is movably arranged in the horizontal pipe 143 at the lower part of the U-shaped pipe 14, and the left and right ends of the horizontal tightening rope 42 respectively extend out from the left and right notches 141. The vertical tightening rope 41 and the horizontal tightening rope 42 extending outwards from the same gap 141 are movably connected together through a double-hole spring rope buckle 5.
Specifically referring to fig. 3, the double-hole spring rope buckle 5 includes a hollow cylindrical structure shell 51, a return spring 52 and a cylindrical structure push rod 53 driven by the return spring 52 to automatically extend out of the shell 51 are arranged in the shell 51, two push rod rope threading holes 531 for allowing ropes to pass through are arranged on the push rod 53, and shell rope threading holes 511 used in cooperation with the push rod rope threading holes 531 are symmetrically arranged on the side wall of the shell 51. Under the normal state, the return spring 52 drives the push rod 53 to move towards the outside of the shell 51, so that the push rod rope threading hole 531 is far away from the shell rope threading holes 511 symmetrically arranged on the side wall of the shell 51, and a rope body which simultaneously penetrates through the shell rope threading hole 511 and the push rod rope threading hole 531 along the vertical direction is clamped and clamped, and the double-hole spring rope buckle 5 body is fixedly clamped and clamped on the rope body.
Referring to fig. 4, before actual use, an external force is applied to the push rod 53 of the two-hole spring cord fastener 5 to overcome the elastic force of the return spring 52, so that the body of the push rod 53 moves into the housing 51 until the housing cord holes 511 symmetrically arranged on the side wall of the housing 51 and the push rod cord hole 531 on the push rod 53 are located at the same position, and then the lower end of the vertical tightening cord 41 and the left/right end of the horizontal tightening cord 42 extending from the same notch 141 sequentially pass through the housing cord holes 511 above the side wall of the housing 51 of the two-hole spring cord fastener 5 along the vertical direction and pass through the push rod cord hole 531 on the push rod 53, and finally extend downwards from the housing cord hole 511 below the side wall of the housing 51. Then, the push rod 53 is released to move outwards the shell 51 under the pushing of the return spring 52 until the body of the double-hole spring rope opening 5 is clamped on the rope body. During the in-service use, wear gauze mask body 1 through elasticity ear-hang 3, stretch to cover the fan-shaped cambered surface and detain nose bridge portion, stretch to fan-shaped cambered surface down and stretch to cover lower jaw portion. Then, two ropes that wear out from the diplopore spring rope fastening 5 body are stretched and are pressed push rod 53 and promote diplopore spring rope fastening 5 body along vertical tightening rope 41 and horizontal tightening rope 42 to the middle part of gauze mask body 1 simultaneously, the tip position department along vertical tightening rope 41 upward movement in order to change the width of gauze mask body 1, along horizontal tightening rope 42 horizontal relative motion in order to change the length of gauze mask body 1 under diplopore spring rope fastening 5 body promotion gauze mask body 1, make gauze mask body 1 finally laminate completely on user's both sides cheek and lower jaw skin, realize using in order to be applicable to the user of different ages and face type to the regulation of gauze mask body 1 size, improved the utility model discloses an applicability and convenience simple to use, easily operation.
Preferably, in order to prevent that diplopore spring cable loop 5 body from droing from vertical tightening rope 41 and horizontal tightening rope body 42 in the use, the utility model discloses the end of vertical tightening rope 41 that will pass diplopore spring cable loop 5 body is connected with the end of horizontal tightening rope 42, connects and actually vertical tightening rope 41 and horizontal tightening rope 42 combination become a complete tightening rope 4 after accomplishing. The two ends of the tightening rope 4 are fixedly connected to the top ends of the vertical pipes 142, and the body of the tightening rope 4 extends out of the notches 141 of the vertical pipes 142 corresponding to the horizontal channel 143.
Of course, this embodiment is only a preferred embodiment, and in other embodiments, the end of the rope body extending from the notch 141 and passing through the body of the dual-hole spring rope buckle 5 may be knotted completely, so that the vertical tightening rope 41 is connected with the end of the horizontal tightening rope 42 to prevent the dual-hole spring rope buckle 5 from falling off.
Specifically, as shown in fig. 5, the mask body 1 of the present invention adopts the multilayer structure design of the existing medical N95 protective mask, and the multilayer structure has high isolation degree to the particles such as viruses, good protection effect and strong safety. Specifically, as shown in the figure, the mask body 1 includes a waterproof nonwoven fabric layer 15 on the inner side and a needle-punched cotton layer 17 on the outer side, and a three-layer meltblown fabric layer 16 is provided between the waterproof nonwoven fabric layer 15 and the needle-punched cotton layer 17. A one-way breather valve 6 which penetrates through the non-woven fabric layer 15, the melt-blown fabric layer 16 and the needle-punched cotton layer 17 and is used for exhausting the gas exhaled by the user to the outside of the mask is arranged at the right side position of the rectangular cambered surface 11 of the mask body 1.
Because the utility model discloses set up the three-layer and melt the cloth layer 16 of spouting between waterproof non-woven fabrics layer 15 and the cotton layer 17 of acupuncture, guaranteed the effect of isolation virus, but the more layer number melt the cloth layer 16 of spouting and be unfavorable for the user and smoothly take a breath, consequently, has add an one-way expiratory valve 6 on gauze mask body 1. The utility model discloses melt and spout 16 many on the cloth layer, keep apart protecting effect good, improved the utility model discloses a security. Simultaneously, the one-way breather valve 6 of setting is favorable to having reduced user's sense of suffocating to the gauze mask outside exhaust, makes the gauze mask wear in-process user's breathing more smooth and easy, has improved the utility model discloses a travelling comfort and reliability.
Further, referring to fig. 2, a gel pad 161 is transversely disposed at the upper edge of the inner side of the mask body 1, the length of the gel pad 161 is the same as that of the upper edge of the mask body 1, and the upper ends of the left and right vertical tubes 142 of the U-shaped tube 14 are pressed against the inner side of the mask body 1 by the left and right ends of the gel pad 161. The width of the gel pad 161 is not less than the distance between the lower edge of the nose clip 2 and the upper edge of the mask body 1. That is, the width of the gel pad 161 ensures that the nose clip 2 can be pressed against the gel pad 161 and press the gel pad 161 and the upper edge of the mask against the bridge of the nose of the wearer during actual wearing.
The utility model discloses gel pad 161 adopts the soft close skin's of texture gel material to make, and gel pad 161 can closely laminate on the skin of human nose bridge portion when actually wearing, has guaranteed 1 top edge department of gauze mask body and the sealed degree of skin, has improved the utility model discloses a security. Simultaneously, because the soft close skin of gel material has effectively reduced or even eliminated the pressure of 1 top edge of gauze mask body to user's facial skin, makes wearing of gauze mask more comfortable, even wear for a long time can not cause facial skin's discomfort and damage yet.
Preferably, referring to fig. 1 and 4, in order to reduce discomfort and damage to the ear of the user caused by the ear hook of the mask, the present invention provides a position-adjustable gel ear hook cover 7 movably covering each elastic ear hook 3. The utility model discloses a gel ear-hang cover 7 wholly is hollow cylinder structure, and when actually wearing, this gel ear-hang cover 7 can move on elasticity ear-hang 3 body in order to adjust its position, makes gel ear-hang cover 7 can the cladding on user's auricle trailing flank, prevents to tightly tighten the ear portion and cause the pain and the damage of user's ear because of wearing the gauze mask for a long time the ear-hang. Additionally, because the utility model discloses a gel ear-hang cover 7 is the gel material, therefore gel ear-hang cover 7 body can be along with the profile laminating of user's auricle trailing flank on the skin of user's ear during in-service use, and applicable people in different ear shapes use, have improved the utility model discloses an adaptability.
In addition, in order to reduce the pressure that 5 bodies of diplopore spring cord fastener produced user's skin, prevent to compress tightly on the skin of jaw portion and cause the discomfort of user's lower jaw portion and damage because of diplopore spring cord fastener 5 when wearing the gauze mask for a long time, the utility model discloses the outside cladding that has 5 at diplopore spring cord fastener has the silica gel cover. When in actual use, the silica gel sleeve outside the double-hole spring rope buckle 5 directly contacts the skin, so that the pressure of the body of the double-hole spring rope buckle 5 on the skin of the lower jaw part is effectively reduced, and the mask is more comfortable to wear.
The above examples are merely for clarity of description of specific embodiments of the present invention and are not intended to limit the embodiments of the present invention. For those skilled in the art, other adjustments or changes to the mask body 1, the U-shaped tube 14, the tightening rope 4, the two-hole spring rope buckle 5, the gel pad 161, the gel ear-hang loop 7, etc. can be deduced according to the present invention, and are not listed here. Any modification, replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a protective facial mask with adjustable size, including gauze mask body (1), the last border department of gauze mask body (1) lateral surface is equipped with nose clip (2), and the both sides edge of gauze mask body (1) is gone up the symmetry and is equipped with elasticity ear-hang (3), its characterized in that: the mask comprises a mask body (1), wherein the middle part of the mask body (1) is a rectangular arc surface (11) with a bulged middle part, the upper part of the rectangular arc surface (11) is connected with a fan-shaped upper fan-shaped arc surface (12) capable of covering a nose bridge part of a human body, the lower part of the rectangular arc surface (11) is connected with a fan-shaped lower fan-shaped arc surface (13) capable of covering a lower jaw part of the human body, and the upper fan-shaped arc surface (12), the rectangular arc surface (11) and the lower fan-shaped arc surface (13) form a cup-shaped mask body (1) which is covered; the left and right side edges of the mask body (1) and the lower edge of the lower fan-shaped cambered surface (13) are folded towards the inner side surface of the mask body, and the edges and the inner side surface of the mask body (1) are sealed in an adhesive pressing and bonding mode to form a U-shaped pipe (14) structure with communicated inner parts; notches (141) for communicating the inside and the outside of the U-shaped pipe (14) are formed at the left end point and the right end point of the lower part of the U-shaped pipe (14); a vertical tightening rope (41) is movably arranged in the left vertical pipeline (142) and the right vertical pipeline (142) of the U-shaped pipe (14), the upper end part of the vertical tightening rope (41) is fixedly connected to the upper end part in the vertical pipeline (142), and the lower end part of the vertical tightening rope (41) extends outwards from the gap (141); a horizontal tightening rope (42) is movably arranged in a horizontal pipeline (143) at the lower part of the U-shaped pipe (14), and two end parts of the horizontal tightening rope (42) respectively extend outwards from the left gap (141) and the right gap (141); the vertical tightening rope (41) and the horizontal tightening rope (42) which extend outwards from the same gap (141) are movably connected through a double-hole spring rope buckle (5).
2. A size-adjustable protective mask according to claim 1, wherein: the tail end parts of the vertical tightening rope (41) and the horizontal tightening rope (42) extending from the same notch (141) are connected together to prevent the double-hole spring rope buckle (5) from falling off.
3. A size-adjustable protective mask according to claim 1, wherein: gauze mask body (1) including waterproof non-woven fabrics layer (15) of medial surface and acupuncture cotton layer (17) of lateral surface, be equipped with three-layer melt-blown fabric layer (16) between waterproof non-woven fabrics layer (15) and acupuncture cotton layer (17), be equipped with on the rectangle cambered surface (11) of gauze mask body (1) and link up waterproof non-woven fabrics layer (15), melt-blown fabric layer (16) and acupuncture cotton layer (17) be used for outside carminative one-way breather valve (6) to the gauze mask.
4. A size-adjustable protective mask according to claim 1, wherein: the upper edge of gauze mask body (1) medial surface transversely is equipped with a gel pad (161), the length of gel pad (161) and the length phase-match of gauze mask body (1) upper edge, the width of gel pad (161) is not less than the interval between nose clip (2) lower limb to gauze mask body (1) upper edge.
5. A size-adjustable protective mask according to claim 1, wherein: the elastic ear hanger (3) is movably sleeved with a gel ear hanger sleeve (7) with adjustable position, and the gel ear hanger sleeve (7) can be attached to the outline of the back side surface of the auricle of a user.
6. A size-adjustable protective mask according to claim 1, wherein: the outside of the double-hole spring rope buckle (5) is coated with a silica gel sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020678893.6U CN212345428U (en) | 2020-04-28 | 2020-04-28 | Protective facial mask with adjustable size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020678893.6U CN212345428U (en) | 2020-04-28 | 2020-04-28 | Protective facial mask with adjustable size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212345428U true CN212345428U (en) | 2021-01-15 |
Family
ID=74134546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020678893.6U Active CN212345428U (en) | 2020-04-28 | 2020-04-28 | Protective facial mask with adjustable size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212345428U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124305A (en) * | 2021-04-14 | 2021-07-16 | 日照职业技术学院 | Interactive equipment in ideological and political education classroom |
| CN113576073A (en) * | 2021-06-18 | 2021-11-02 | 张港 | Medical mask suitable for medical personnel with different body types and easy to adjust air inflow |
-
2020
- 2020-04-28 CN CN202020678893.6U patent/CN212345428U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124305A (en) * | 2021-04-14 | 2021-07-16 | 日照职业技术学院 | Interactive equipment in ideological and political education classroom |
| CN113576073A (en) * | 2021-06-18 | 2021-11-02 | 张港 | Medical mask suitable for medical personnel with different body types and easy to adjust air inflow |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212345428U (en) | Protective facial mask with adjustable size | |
| CN210382751U (en) | Mask convenient to wear | |
| CN111955818A (en) | Medical protective mask | |
| CN111449320B (en) | Graphite alkene protective facial mask | |
| CN212574205U (en) | Medical protective mask | |
| CN212393971U (en) | N95 gauze mask convenient to laminating face | |
| CN213215459U (en) | Adjustable pressure reduction protective mask | |
| CN212994567U (en) | Disposable medical mask | |
| CN212233237U (en) | Folding medical protective mask | |
| CN111436686A (en) | A half body protective equipment for preventing novel coronavirus | |
| CN213939798U (en) | Mouth-nose separation type mask | |
| CN215270751U (en) | Mask with cartilage nose bridge structure | |
| CN212940952U (en) | Intensive care non-invasive breathing mask fixing device | |
| CN212911821U (en) | External ear hanging mask | |
| CN214485322U (en) | High-efficiency filtering protective oxygen-increasing mask | |
| CN211096842U (en) | Noninvasive positive-pressure ventilation mouth-nose mask fixing band and breathing mask | |
| CN212590403U (en) | Antibiotic gauze mask of graphite alkene | |
| CN213604555U (en) | An antibacterial and antiviral mask | |
| CN212347400U (en) | Emergency department is with comfortable type oxygen uptake cover | |
| CN209732653U (en) | Medical disposable mask | |
| TW202304566A (en) | Mask | |
| CN214677683U (en) | Mask with good fitting performance | |
| CN212212795U (en) | A mask with adjustable ear strap length | |
| CN111820505A (en) | Disposable medical mask | |
| CN212233224U (en) | Take motion gauze mask of breather valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |