CN112386821A - Electronic new trend gauze mask convenient to change dust removal filter media - Google Patents

Electronic new trend gauze mask convenient to change dust removal filter media Download PDF

Info

Publication number
CN112386821A
CN112386821A CN202011298871.8A CN202011298871A CN112386821A CN 112386821 A CN112386821 A CN 112386821A CN 202011298871 A CN202011298871 A CN 202011298871A CN 112386821 A CN112386821 A CN 112386821A
Authority
CN
China
Prior art keywords
mask
piece
front piece
pressing strip
cloth pressing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011298871.8A
Other languages
Chinese (zh)
Inventor
房诗宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Zhonghe Jincheng Technology Co ltd
Original Assignee
Beijing Zhonghe Jincheng Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Zhonghe Jincheng Technology Co ltd filed Critical Beijing Zhonghe Jincheng Technology Co ltd
Priority to CN202011298871.8A priority Critical patent/CN112386821A/en
Publication of CN112386821A publication Critical patent/CN112386821A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00Respiratory apparatus
    • A62B7/02Respiratory apparatus with compressed oxygen or air
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00Filters for breathing-protection purposes
    • A62B23/02Filters for breathing-protection purposes for respirators
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00Respiratory apparatus
    • A62B7/10Respiratory apparatus with filter elements

Abstract

Electric fresh air mask convenient to change dust removal filter media, the gauze mask anter of making including the dust removal filter media, the rear of gauze mask anter is equipped with the backing sheet that engineering plastics made, the surface of backing sheet is equipped with a plurality of bleeder vents, the rear of backing sheet is equipped with the back part that engineering plastics made, the middle part of back part is equipped with the recess of backward recessed, be fixed with the fan in the recess at back part middle part, the recess is located and is equipped with the exhaust hole on the lateral wall of its top or bottom, the left end of back part links to each other as an organic wholely with the right-hand member of left elasticity inserted sheet, left side elasticity inserted sheet inserts between left cloth layering and the gauze mask anter from left inserted hole, the right-hand member of back part links to each other as an organic wholely with the left end. Its purpose is providing a dust removal effect is good, efficient, lets the people who wears the gauze mask breathe unobstructed, can not feel the oppression, can ensure the gauze mask health through changing the dust removal filter media, reduces use cost's the electronic new trend gauze mask of being convenient for change dust removal filter media.

Description

Electronic new trend gauze mask convenient to change dust removal filter media
Technical Field
The invention relates to an electric fresh air mask convenient for replacing a dust-removing filter material.
Background
The mask can be worn at the mouth and nose part and is used for filtering air entering and exiting from the mouth and nose so as to prevent harmful gas, smell and spray from entering and exiting from the mouth and nose of a wearer, and the mask is mostly made of cloth or paper and the like. However, the existing mask can make people feel laboursome and stuffy when breathing and feel unsmooth breathing after being worn. The existing electric fresh air mask which utilizes a fan to drive air inlet and is convenient for replacing a dust-removing filter material is usually evolved from a gas mask, so that the mask is heavy and unattractive as a whole, and has a relatively complex structure and high manufacturing cost.
Disclosure of Invention
The invention aims to provide the electric fresh air mask which has the advantages of good dust removal effect, high efficiency, light and convenient shape, conforms to the wearing habit of the public, ensures that a person wearing the mask can breathe smoothly without feeling suffocating, can ensure the sanitation of the mask by replacing the front piece of the mask made of the dust removal filter material, and reduces the use cost and is convenient for replacing the dust removal filter material.
The invention relates to an electric fresh air mask convenient for replacing a dust-removing filter material, which comprises a mask front piece made of the dust-removing filter material, wherein a left cloth pressing strip is arranged at the left end of the back surface of the mask front piece, a right cloth pressing strip is arranged at the right end of the back surface of the mask front piece, the upper edge, the lower edge and the edge of the left end of the left cloth pressing strip are fixedly connected with the mask front piece, a left insertion hole is formed in the right end of the left cloth pressing strip, the upper edge, the lower edge and the edge of the right end of the right cloth pressing strip are fixedly connected with the mask front piece, and;
the rear of gauze mask anter is equipped with the backing sheet that engineering plastics made, the backing sheet is middle part protrusion forward, control the arc that both ends were buckled backward, the surface of backing sheet is equipped with a plurality of bleeder vents, the rear of backing sheet is equipped with the back part that engineering plastics made, the back part is middle part protrusion forward, control the arc that both ends were buckled backward, the middle part of back part is equipped with the recess of backward concave yield, be fixed with the fan in the recess at back part middle part, the recess is located and is equipped with the exhaust hole on the lateral wall of its top or bottom, the left end of back part links to each other as an organic wholely with the right-hand member of left elasticity inserted sheet, left side elasticity inserted sheet inserts between left cloth layering and the gauze mask anter from left inserted opening, the right-hand member of back part links to be as an organic wholely with the left end.
Preferably, a separation gasket made of a flexible material is arranged behind the rear piece, the left end of the separation gasket is inserted between the left cloth pressing strip and the front piece of the mask from the left insertion opening, and the right end of the separation gasket is inserted between the right cloth pressing strip and the front piece of the mask from the right insertion opening.
Preferably, the cross section of the groove is rectangular, and the spacer is made of skin-friendly, deodorizing and antibacterial non-woven fabrics.
Preferably, a driving motor of the fan is connected with an electric control device and a rechargeable battery through leads, the electric control device and the rechargeable battery are arranged in a case, a power switch is arranged on the case, and a hanging belt rope is connected at the corner of the case.
Preferably, the middle section of the conducting wire penetrates through the space between the left cloth pressing strip and the front piece of the mask.
When the electric fresh air mask convenient for replacing the dust removing filter material is used, the front piece of the mask is supported by the support sheet, so that the front piece of the mask cannot be close to the fan in the groove, when the fan is started to work, the front piece made of the dust removing filter material can be ensured to always keep a larger filtering area, and the resistance of air flow cannot be increased, so that the filtering and dust removing effects of the electric fresh air mask convenient for replacing the dust removing filter material are greatly improved, a person wearing the mask cannot feel the breathing difficulty, the air sucked by the fan can remove most of dust particles in the air due to the filtering of the front piece made of the dust removing filter material, the clean air can be sent to the position near the mouth and the nose of the person behind the rear piece through the exhaust hole by the fan to be breathed by the person, then flows out from the edge of the front piece of the mask, and the outflow air flow can prevent the external dust-containing air from flowing into the edge of the front piece of the electric fresh air mask convenient When the front piece of the mask becomes dirty after being used for a period of time, the left elastic insertion piece can be inserted into the space between the left cloth pressing strip and the front piece of the mask from the left insertion hole and be extracted out, the right elastic insertion piece is inserted into the space between the right cloth pressing strip and the front piece of the mask from the right insertion hole and be extracted out, the front piece of the mask is taken off and then is replaced with a new front piece of the mask to be continuously used after being connected with the rear piece through the left elastic insertion piece and the right elastic insertion piece. Therefore, the electric fresh air mask convenient for replacing the dust-removing filter material has the characteristics of good dust-removing effect, high efficiency, light shape, accordance with the wearing habit of the public, smooth breathing of people wearing the mask, no feeling of suffocation, capability of ensuring the sanitation of the mask by replacing the front piece of the mask made of the dust-removing filter material and reduction of the use cost.
The electric fresh air mask of the present invention, which facilitates replacement of the dust filter material, will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of a schematic structural diagram of an electric fresh air mask with easy replacement of dust filter material according to the present invention;
FIG. 2 is a rear view of FIG. 1;
FIG. 3 is the view of FIG. 2 with the spacer removed;
FIG. 4 is a front view of a schematic structural diagram of a support sheet, a rear sheet and a fan portion of the electric fresh air inlet cover for facilitating replacement of a dust-removing filter material according to the present invention;
FIG. 5 is a rear view of FIG. 4;
fig. 6 is a side sectional view of fig. 4.
Detailed Description
As shown in fig. 1, 2 and 3, the electric fresh air mask convenient for replacing the dust-removing filter material comprises a mask front piece 1 made of the dust-removing filter material, wherein a left cloth pressing strip 2 is arranged at the left end of the rear surface of the mask front piece 1, a right cloth pressing strip 3 is arranged at the right end of the rear surface of the mask front piece 1, the upper edge, the lower edge and the edge of the left end of the left cloth pressing strip 2 are fixedly connected with the mask front piece 1, a left insertion hole is arranged at the right end of the left cloth pressing strip 2, the upper edge, the lower edge and the edge of the right end of the right cloth pressing strip 3 are fixedly connected with the mask front piece 1, and a right insertion hole is arranged at;
as shown in figures 1, 2, 3 and 4, fig. 5 and fig. 6 show, the rear of gauze mask anter 1 is equipped with backing sheet 4 that engineering plastics made, backing sheet 4 is middle part protrusion forward, control the arc that both ends are buckled backward, the surface of backing sheet 4 is equipped with a plurality of bleeder vents 10, the rear of backing sheet 4 is equipped with rear sheet 5 that engineering plastics made, rear sheet 5 is middle part protrusion forward, control the arc that both ends are buckled backward, rear sheet 5's middle part is equipped with the recess 11 of backward concave yield, be fixed with fan 6 in the recess 11 at rear sheet 5 middle part, recess 11 is located and is equipped with exhaust hole 12 on the lateral wall of its top or bottom, rear sheet 5's left end links to each other as an organic wholely with left elastic insertion sheet 7's right-hand member, left elastic insertion sheet 7 inserts between left cloth layering 2 and gauze mask anter 1 from left inserted opening, rear sheet 5's right-hand member links to be an organic wholely with right elastic insertion sheet 8's left end, right elastic insertion sheet 8.
As a further improvement of the invention, a spacer 9 made of flexible material is arranged behind the back sheet 5, the left end of the spacer 9 is inserted between the left cloth batten 2 and the front mask sheet 1 from the left insertion opening, and the right end of the spacer 9 is inserted between the right cloth batten 3 and the front mask sheet 1 from the right insertion opening. The spacer 9 can separate the back sheet 5 to prevent the back sheet 5 from clinging to the face of a person and causing discomfort. The spacer 9 can also be removed and replaced to ensure cleanliness and hygiene.
As a further improvement of the invention, the cross section of the groove 11 is rectangular, and the spacer 9 is made of skin-friendly, deodorizing and antibacterial non-woven fabric.
As a further improvement of the invention, the driving motor of the fan 4 is connected with the electric control device and the rechargeable battery through leads, the electric control device and the rechargeable battery are arranged in the case, the case is provided with a power switch, and the corner of the case is connected with the sling rope.
As a further improvement of the invention, the middle section of the conducting wire passes through between the left cloth pressing strip 2 and the front piece 1 of the mask.
The invention relates to an electric fresh air mask convenient for replacing dust-removing filter materials, wherein the left end of the backward surface of a front piece 1 of the mask is provided with a left cloth pressing strip 2, the right end of the backward surface of the front piece 1 of the mask is provided with a right cloth pressing strip 3, the upper edge, the lower edge and the left end edge of the left cloth pressing strip 2 are fixedly connected with the front piece 1 of the mask, the right end of the left cloth pressing strip 2 is provided with a left insertion hole, the upper edge, the lower edge and the right end edge of the right cloth pressing strip 3 are fixedly connected with the front piece 1 of the mask, the left end of the right cloth pressing strip 3 is provided with a right insertion hole, a support piece 4 made of engineering plastics is arranged behind the front piece 1 of the mask, the surface of the support piece 4 is provided with a plurality of air holes 10, the back piece 5 made of the engineering plastics is arranged behind the support piece 4, the middle part of the back piece 5 is, the left end of the back piece 5 is connected with the right end of the left elastic inserting piece 7 into a whole, the left elastic inserting piece 7 is inserted between the left cloth pressing strip 2 and the front piece 1 of the mask from the left inserting opening, the right end of the back piece 5 is connected with the left end of the right elastic inserting piece 8 into a whole, and the right elastic inserting piece 8 is inserted between the right cloth pressing strip 3 and the front piece 1 of the mask from the right inserting opening.
When in use, the supporting sheet 4 supports the front piece 1 of the mask, so that the front piece 1 of the mask can not be close to the fan 6 in the groove 11, when the fan 6 is started to work, the front piece 1 made of the dust-removing filter material can be ensured to always keep a larger filtering area, and the airflow resistance can not be increased, so that the electric fresh air mask convenient for replacing the dust-removing filter material can greatly improve the filtering and dust-removing effects, a person wearing the mask can not feel stuffy and can not feel unsmooth breathing, most dust particles in the air can be removed due to the filtering of the front piece 1 of the mask made of the dust-removing filter material by the air pumped in by the fan 6, the clean air can be sent to the position near the mouth and nose of the person behind the back piece 5 through the exhaust hole 12 by the fan 6 for breathing, then flows out from the edge of the front piece 1 of the mask, and the outflow air can prevent the external dust-containing gas from flowing into the electric fresh air mask convenient for replacing the dust-removing, when the front piece of the mask becomes dirty after being used for a period of time, the left elastic inserting piece 7 can be inserted into the space between the left cloth pressing strip 2 and the front piece 1 of the mask from the left inserting opening and is extracted, the right elastic inserting piece 8 is inserted into the space between the right cloth pressing strip 3 and the front piece 1 of the mask from the right inserting opening and is extracted, the front piece 1 of the mask is taken off and then is replaced with a new front piece 1 of the mask which is continuously used after being connected with the rear piece 5 through the left elastic inserting piece 7 and the right elastic inserting piece 8. Therefore, the electric fresh air mask convenient for replacing the dust-removing filter material has the characteristics of good dust-removing effect, high efficiency, light shape, accordance with the wearing habit of the public, smooth breathing of people wearing the mask, no feeling of suffocation, capability of ensuring the sanitation of the mask by replacing the front piece of the mask made of the dust-removing filter material and reduction of the use cost.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims (5)

1. Electronic new trend gauze mask convenient to change dust removal filter media, its characterized in that: the mask front piece (1) is made of dust-removing filter materials, a left cloth pressing strip (2) is arranged at the left end of the mask front piece (1) facing the rear surface, a right cloth pressing strip (3) is arranged at the right end of the mask front piece (1) facing the rear surface, the upper edge, the lower edge and the edge of the left end of the left cloth pressing strip (2) are fixedly connected with the mask front piece (1), a left insertion hole is formed in the right end of the left cloth pressing strip (2), the upper edge, the lower edge and the edge of the right end of the right cloth pressing strip (3) are fixedly connected with the mask front piece (1), and a right insertion hole is formed in the left end of the;
the rear part of the mask front piece (1) is provided with a support piece (4) made of engineering plastics, the support piece (4) is an arc with a forward convex middle part and backward bent left and right ends, the surface of the support piece (4) is provided with a plurality of air holes (10), the rear part of the support piece (4) is provided with a rear piece (5) made of engineering plastics, the rear piece (5) is an arc with a forward convex middle part and backward bent left and right ends, the middle part of the rear piece (5) is provided with a backward concave groove (11), a fan (6) is fixed in the groove (11) in the middle part of the rear piece (5), the groove (11) is positioned on the top or the side wall of the bottom of the groove and is provided with an exhaust hole (12), the left end of the rear piece (5) is connected with the right end of the left elastic insertion piece (7) into a whole, the left elastic insertion piece (7) is inserted between the left cloth pressing strip (2) and the mask front piece (1) from the left, the right elastic inserting piece (8) is inserted between the right cloth batten (3) and the front piece (1) of the mask from the right inserting opening.
2. The electric fresh air mask convenient for replacing the dust-removing filter material of claim 1, which is characterized in that: the rear part of the back piece (5) is provided with a spacer (9) made of flexible materials, the left end of the spacer (9) is inserted between the left cloth pressing strip (2) and the front piece (1) of the mask from a left insertion opening, and the right end of the spacer (9) is inserted between the right cloth pressing strip (3) and the front piece (1) of the mask from a right insertion opening.
3. The electric fresh air mask convenient for replacing the dust-removing filter material of claim 2, which is characterized in that: the cross section of recess (11) is the rectangle, separating pad piece (9) adopt close skin deodorization fungi-proofing non-woven fabrics to make.
4. The electric fresh air mask convenient for replacing the dust-removing filter material according to claim 1, 2 or 3, which is characterized in that: the driving motor of the fan (4) is connected with the electric control device and the rechargeable battery through wires, the electric control device and the rechargeable battery are arranged in the case, the case is provided with a power switch, and the corner of the case is connected with a sling rope.
5. The electric fresh air mask convenient for replacing the dust-removing filter material of claim 4, which is characterized in that: the middle section of the lead passes through the space between the left cloth pressing strip (2) and the front piece (1) of the mask.
CN202011298871.8A 2020-11-19 2020-11-19 Electronic new trend gauze mask convenient to change dust removal filter media Pending CN112386821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011298871.8A CN112386821A (en) 2020-11-19 2020-11-19 Electronic new trend gauze mask convenient to change dust removal filter media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011298871.8A CN112386821A (en) 2020-11-19 2020-11-19 Electronic new trend gauze mask convenient to change dust removal filter media

Publications (1)

Publication Number Publication Date
CN112386821A true CN112386821A (en) 2021-02-23

Family

ID=74607473

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011298871.8A Pending CN112386821A (en) 2020-11-19 2020-11-19 Electronic new trend gauze mask convenient to change dust removal filter media

Country Status (1)

Country Link
CN (1) CN112386821A (en)

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2655950Y (en) * 2003-11-07 2004-11-17 孙国庆 Smoke-proof filtering chip and mask
CN103704904A (en) * 2012-09-28 2014-04-09 天津红晨岛服饰有限公司 Novel bacterium-insulation and dust-tight mask
CN204582346U (en) * 2015-04-16 2015-08-26 上海畅波智能化科技有限公司 A kind of protective mask with auxiliary initiatively air blowing function
CN204838103U (en) * 2015-06-10 2015-12-09 北京松研呼吸防护用品有限公司 But novel gauze mask of dual purpose that plane, solid were worn
CN205492687U (en) * 2016-02-19 2016-08-24 赵大文 Anti -haze mask
CN206586437U (en) * 2017-03-30 2017-10-27 杭州森润无纺布科技有限公司 New Nonwovens lint face mask
CN107495507A (en) * 2017-09-08 2017-12-22 盐城方天无纺制品有限公司 A kind of multiple filtration type mouth mask
CN207461465U (en) * 2017-11-21 2018-06-08 山东鑫珂海洋生物技术股份有限公司 A kind of removable mask of firm type
CN108404313A (en) * 2018-04-12 2018-08-17 北京中和锦程科技有限公司 Electronic gauze mask
KR102028044B1 (en) * 2018-06-01 2019-10-02 김필립 A Mask with breathing assembly
CN111329157A (en) * 2020-04-15 2020-06-26 合肥茂申商贸有限责任公司 Detachable dust mask
CN111588123A (en) * 2020-06-01 2020-08-28 追信数字科技有限公司 Separating mask with time reminding function and using method thereof
CN211458929U (en) * 2020-07-03 2020-09-11 安徽盒子健康科技有限公司 Anti-virus mask with conveniently replaced filter element
CN211672575U (en) * 2020-01-09 2020-10-16 青岛科美生物工程有限公司 Three-dimensional gauze mask of removable filter core
CN211747136U (en) * 2020-02-01 2020-10-27 杭州杭康医疗器械有限公司 Medical mask capable of being repeatedly used
CN111838819A (en) * 2020-08-05 2020-10-30 北京中和锦程科技有限公司 Electric fresh air mask

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2655950Y (en) * 2003-11-07 2004-11-17 孙国庆 Smoke-proof filtering chip and mask
CN103704904A (en) * 2012-09-28 2014-04-09 天津红晨岛服饰有限公司 Novel bacterium-insulation and dust-tight mask
CN204582346U (en) * 2015-04-16 2015-08-26 上海畅波智能化科技有限公司 A kind of protective mask with auxiliary initiatively air blowing function
CN204838103U (en) * 2015-06-10 2015-12-09 北京松研呼吸防护用品有限公司 But novel gauze mask of dual purpose that plane, solid were worn
CN205492687U (en) * 2016-02-19 2016-08-24 赵大文 Anti -haze mask
CN206586437U (en) * 2017-03-30 2017-10-27 杭州森润无纺布科技有限公司 New Nonwovens lint face mask
CN107495507A (en) * 2017-09-08 2017-12-22 盐城方天无纺制品有限公司 A kind of multiple filtration type mouth mask
CN207461465U (en) * 2017-11-21 2018-06-08 山东鑫珂海洋生物技术股份有限公司 A kind of removable mask of firm type
CN108404313A (en) * 2018-04-12 2018-08-17 北京中和锦程科技有限公司 Electronic gauze mask
KR102028044B1 (en) * 2018-06-01 2019-10-02 김필립 A Mask with breathing assembly
CN211672575U (en) * 2020-01-09 2020-10-16 青岛科美生物工程有限公司 Three-dimensional gauze mask of removable filter core
CN211747136U (en) * 2020-02-01 2020-10-27 杭州杭康医疗器械有限公司 Medical mask capable of being repeatedly used
CN111329157A (en) * 2020-04-15 2020-06-26 合肥茂申商贸有限责任公司 Detachable dust mask
CN111588123A (en) * 2020-06-01 2020-08-28 追信数字科技有限公司 Separating mask with time reminding function and using method thereof
CN211458929U (en) * 2020-07-03 2020-09-11 安徽盒子健康科技有限公司 Anti-virus mask with conveniently replaced filter element
CN111838819A (en) * 2020-08-05 2020-10-30 北京中和锦程科技有限公司 Electric fresh air mask

Similar Documents

Publication Publication Date Title
KR200479660Y1 (en) Replacment filter mask
KR101460942B1 (en) mask
KR101643682B1 (en) Portable mask
CN105617565B (en) A kind of filtering type breathing mask
KR20200116334A (en) Filter replaceable dust mask
KR102124175B1 (en) Mask type air cleaning system
CN111167037A (en) Air supply and ventilation multipurpose protective mask and air supply device
KR20170129379A (en) A mask
JP3230839U (en) mask
CN112386821A (en) Electronic new trend gauze mask convenient to change dust removal filter media
CN205306064U (en) Electronic gauze mask of antifog haze of intelligence
CN212938069U (en) Electric fresh air mask
CN213639782U (en) Electronic new trend gauze mask convenient to change dust removal filter media
KR102065578B1 (en) Mask having e-film filter
CN111838819A (en) Electric fresh air mask
KR102365565B1 (en) Mask that is improved inpracticality
US20220071319A1 (en) Personal Ventilation System for an Air Mask
CN214340252U (en) Mouth and nose separation dual cycle mask
CN210783033U (en) Gauze mask cotton piece
CN106924905A (en) Wearable breathing equipment
CN214509585U (en) Transparent mask
CN213045352U (en) Silica gel mask
CN206261956U (en) Wear-type fresh air mouth mask
CN214854536U (en) High-moisture-permeability antibacterial dustproof mask
CN206604031U (en) A kind of Novel anti-mist haze electric mask

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 100083 Room 516, 5 / F, 7 Xueyuan Road, Haidian District, Beijing

Applicant after: BEIJING ZHONGHE JINCHENG TECHNOLOGY Co.,Ltd.

Address before: Room 501-2071, Office Building, No. 8 Xingsheng South Road, Miyun District Economic Development Zone, Beijing

Applicant before: BEIJING ZHONGHE JINCHENG TECHNOLOGY Co.,Ltd.

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210223