CN213159053U - A full face protective equipment - Google Patents
A full face protective equipment Download PDFInfo
- Publication number
- CN213159053U CN213159053U CN202020249102.8U CN202020249102U CN213159053U CN 213159053 U CN213159053 U CN 213159053U CN 202020249102 U CN202020249102 U CN 202020249102U CN 213159053 U CN213159053 U CN 213159053U
- Authority
- CN
- China
- Prior art keywords
- filter
- mask
- face
- air
- fixed
- 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.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 28
- 238000010030 laminating Methods 0.000 claims description 20
- 239000012528 membrane Substances 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 10
- 230000001815 facial effect Effects 0.000 claims description 9
- 239000002912 waste gas Substances 0.000 claims description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 claims 3
- 230000006378 damage Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 2
- 206010047513 Vision blurred Diseases 0.000 abstract 1
- 206010047531 Visual acuity reduced Diseases 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 210000001331 nose Anatomy 0.000 description 17
- 238000010276 construction Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical group CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
Images
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
本实用新型涉及医用防护领域，具体为全脸式防护装备，包括面罩总成、连接盒及过滤器，面罩和连接盒之间通过卡口实现配合，连接盒与过滤器之间采用快换式接口连接，过滤器位于面罩的上方，空气通过过滤器净化后，经由连接盒流入到面罩的进气管路中，并经过面罩的进气单向阀进入到佩戴者呼吸道内，佩戴者呼出的废气经由面罩下部的排气单向阀排出。本实用新型克服传统防护装备视野不佳，容易起雾，容易造成压力性损伤的弊端。本实用新型实现了吸入与呼出两气路的物理隔离，并且避免了因呼出空气内水蒸气凝结在面罩上引起视线模糊的确信。
The utility model relates to the field of medical protection, in particular to full-face protection equipment, comprising a mask assembly, a connection box and a filter, the mask and the connection box are matched through a bayonet, and the connection box and the filter adopt a quick-change type Interface connection, the filter is located above the mask, after the air is purified by the filter, it flows into the air intake pipeline of the mask through the connection box, and enters the wearer's airway through the air intake check valve of the mask, and the exhaust gas exhaled by the wearer Exhaust through the exhaust one-way valve in the lower part of the mask. The utility model overcomes the drawbacks of the traditional protective equipment, such as poor vision, easy fogging and pressure injury. The utility model realizes the physical isolation of the two air paths of inhalation and exhalation, and avoids the belief that blurred vision is caused by condensation of water vapor in the exhaled air on the mask.
Description
Technical Field
The invention relates to the field of medical protection, in particular to full-face type protective equipment.
Background
Although there are wearing type protective equipment in the market, it is often to the scene design that needs to wear the helmet, and protection filter cartridge or filter are in the mouth, if change into medical use, increase the weight of face guard below, two come to shelter from the sight, and can cause the patient psychology and big fear.
Disclosure of Invention
The invention aims to provide a filter element which is a full-face protective cover so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a full face formula protective equipment which characterized in that: including face guard assembly 1, connecting box 2 and filter 3, connecting box 2 is installed through the bayonet socket in face guard assembly 1 top, filter 3 relies on the filter connector to install on connecting box 2, filter 3 with face guard assembly 1 with the help of connecting box 2 realizes the intercommunication of gas circuit.
The mask assembly 1 comprises a middle frame 11, a lining 12, an inspiration one-way valve film 13, a transparent mask 14, an expiration one-way valve group 15 and an elastic band 16, wherein the middle frame 11 and the lining 12 are fixed with each other, the inspiration one-way valve film 13 is fixed on the lining 12, the transparent mask 14 is fixed on the middle frame 11 at the periphery and part of the area is connected with the lining 12, the expiration one-way valve group 15 is fixed on the transparent mask 14, and the elastic band 16 is fixed on the middle frame 11.
The middle frame 11 includes a middle frame inner ring 110, a middle frame arc surface 111, an exhalation side lower port 112, an airway interface end 113, an exhalation side upper port 114, an inhalation side inlet 115, an inhalation side outlet 116, an upper elastic band fixing interface 117, a lower elastic band fixing interface 118, an exhalation side 119, and the like, the middle frame inner ring 110 is used for being fixed relative to the lining 12, the exhalation side lower port 112, the exhalation side upper port 114 and the exhalation side 119 are used together as a standby channel for exhaust gas discharge, the middle frame arc surface 111 is used for being fixed to the transparent mask 14, the inhalation side inlet 115 and the inhalation side outlet 116 are used as an air inlet channel for filtering air, and the upper elastic band fixing interface 117 and the lower elastic band fixing interface 118 are used for installation and fixation of the elastic band 16.
The air suction check valve film 13 is fixed to the air suction window 124 of the inner liner 12 by means of a film trunk 130, and the air inlet face 131 is attached to the inner side of the inner liner 12.
The transparent mask 14 comprises a panel sealing edge 140, a nose wing type bulge 141, an air valve installation groove 142 and a lining sealing edge 143, wherein the panel sealing edge 140 is used for sealing and fixing with the middle frame 11, the nose wing type bulge 141 is used for avoiding the space occupied by the lining 12, and the air valve installation groove 142 is used for fixing and sealing the expiratory check valve set 15.
Expiration check valve group 15 includes structures such as installation frame 150, hole net 151, outer hole net 152, one-way membrane 15a and binding face 153, installation frame 150 be used for with transparent face guard 14 is sealed fixed, hole net 151 with outer hole net 152 is used as the discharge passage of expired gas, one-way membrane 15a is installed hole net 151 one side and laminating are in binding face 153 is used for separating face guard assembly 1 and outside air.
The elastic band 16 is fixed on the middle frame 11 by an upper elastic band 161 and a lower elastic band 162 through a fixing joint 160 at the end thereof.
The connecting box 2 comprises a mask connecting port 200, a groove-shaped inner connecting surface 201, an anti-release buckle 202, a filter connecting port 203, a cylindrical outer connecting surface 204, a cylindrical inner connecting surface 205, a filter clamping tongue 206 and other structures, the connecting box 2 internally comprises a U-shaped groove 20a for sealing an upper exhaust port of the mask assembly 1, the groove-shaped inner connecting surface 201 of the mask connecting port 200 is used for being connected with the air passage interface end 113 of the mask assembly 1, the anti-release buckle 202 is buckled on the mask assembly 1 for preventing loosening, the filter connecting port 203 is used for being connected with the filter 3, and the cylindrical outer connecting surface 204 and the filter clamping tongue 206 are used for being mutually mounted, guided and positioned with the filter 3.
The filter 3 comprises a filter shell 31, filter cotton 32, a second air inlet mesh 331 and a filter bottom cover 33, wherein the filter shell is provided with a filter interface 310 for connecting with the connecting box 2 and a clamping groove 311 for fixing, the other end of the filter shell 31 is provided with a sealing edge 312 for assembling the filter bottom cover 33, the filter cotton 32 is arranged in the filter shell 31, the filter bottom cover 33 is arranged on the filter shell 31 through a self sealing groove 330, and air enters the filter 3 through the second air inlet mesh 331.
The utility model discloses humanized protection design to medical staff can integrate equipment such as gauze mask, goggles, protective clothing as an organic whole, realizes keeping apart facial protection, dresses labour saving and time saving, and the travelling comfort is good, and dresses simply, and area of field is big, does not influence clinical operation, after wearing for a long time, is difficult to cause the pressure nature damage of face.
The utility model discloses it is not good to overcome traditional protective equipment field of vision, and easy fogging causes the drawback of pressure nature damage easily. The utility model discloses a physical isolation of inhaling and two gas circuits of exhalation to avoid causing the blurred defect of sight on the face guard because of the vapor condenses in the exhalation air.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a second schematic view of the overall structure of the present invention;
FIG. 3 is a schematic perspective exploded view of the present invention;
FIG. 4 is a schematic perspective exploded view of the mask of the present invention;
FIG. 5 is a second perspective exploded view of the mask of the present invention;
FIG. 6 is a schematic diagram of the construction of the inner frame of the mask of the present invention;
FIG. 7 is a sectional view taken along A-A in FIG. 6;
FIG. 8 is a second schematic view of the inner frame of the mask of the present invention;
FIG. 9 is a schematic view of the construction of the liner of the face mask of the present invention;
FIG. 10 is a second schematic view of the construction of the inner liner of the face mask of the present invention;
FIG. 11 is an enlarged view of a portion of B in FIG. 10;
FIG. 12 is a schematic view of the structure of a check valve membrane according to the present invention;
FIG. 13 is a schematic view of a transparent mask according to the present invention;
FIG. 14 is a second schematic view of the structure of the transparent mask of the present invention;
FIG. 15 is a schematic view of a exhalation check valve assembly according to the present invention;
FIG. 16 is a cross-sectional view taken along line C-C of FIG. 15;
FIG. 17 is a second schematic view of the exhalation check valve assembly of the present invention;
FIG. 18 is a schematic view of an elastic band according to the present invention;
FIG. 19 is a second schematic view of the elastic band of the present invention;
FIG. 20 is a schematic view of the construction of the junction box of the present invention;
FIG. 21 is a cross-sectional view taken along line D-D of FIG. 20;
FIG. 22 is a schematic sectional view of the junction box of the present invention;
FIG. 23 is a schematic view showing the structure of a filter case according to the present invention
FIG. 24 is a front view of the filter bottom cover of the present invention
FIG. 25 is a schematic view of the structure of the filter cotton of the present invention
FIG. 26 is a schematic view of the back side of the filter bottom cover of the present invention
FIG. 27 is an enlarged partial view of E in FIG. 26
Fig. 28 is a schematic view of the gas circuit of the present invention.
In the figure: 1. a mask assembly; 11. a middle frame; 110. an inner ring of the middle frame; 111. a middle frame cambered surface; 112. the lower port of the side path of the expiratory duct; 113. an airway interface end; 114. the upper mouth of the side of the expiration passage; 115. an inlet of the suction channel; 116. an air intake duct outlet; 117. an upper elastic band fixing interface; 118. a lower elastic band fixing interface; 119. an expiratory channel; 12. a liner; 120. an inner lining outer ring; 121. the face is attached to the soft curtain; 122. a nasal alar skeleton; 123. the nose wing is attached to the soft curtain; 124. an air intake window; 125. an expiratory sealing edge; 126. an exhalation window; 13. a suction one-way valve membrane; 130. a membrane backbone; 131. an air inlet surface; 14. a transparent mask; 140. a panel sealing edge; 141. a nasal alar bulge; 142. an air valve mounting groove; 143. a liner sealing rim; 15. an expiratory single-phase valve bank; 150. installing a frame; 151. an inner mesh; 152. an outer mesh; 153. a binding face; 15a, a single membrane; 16. an elastic band; 160. a fixed joint; 161. an upper elastic band; 162. a lower elastic band; 2. a connection box; 200. a mask connection port; 201. a trench inner junction surface; 202. preventing tripping; 203. a filter connection port; 204. a cylindrical outer junction surface; 205. a cylindrical inner junction surface; 206. a filter latch; 3. a filter; 31. a filter housing; 310. a filter interface; 311. a card slot; 312. a sealing edge; 32. filtering cotton; 33. a filter bottom cover; 330. a sealing groove; 331. and a second air inlet mesh.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 28, a full-face protective equipment is characterized in that: including face guard assembly 1, connecting box 2 and filter 3, connecting box 2 is installed through the bayonet socket in face guard assembly 1 top, filter 3 relies on the filter connector to install on connecting box 2, filter 3 with face guard assembly 1 with the help of connecting box 2 realizes the intercommunication of gas circuit.
The mask assembly 1 comprises a middle frame 11, a lining 12, an inspiration one-way valve film 13, a transparent mask 14, an expiration one-way valve group 15 and an elastic band 16, wherein the middle frame 11 and the lining 12 are fixed with each other, the inspiration one-way valve film 13 is fixed on the lining 12, the transparent mask 14 is fixed on the middle frame 11 at the periphery and part of the area is connected with the lining 12, the expiration one-way valve group 15 is fixed on the transparent mask 14, and the elastic band 16 is fixed on the middle frame 11.
The middle frame 11 includes a middle frame inner ring 110, a middle frame arc surface 111, an exhalation side lower port 112, an airway interface end 113, an exhalation side upper port 114, an inhalation side inlet 115, an inhalation side outlet 116, an upper elastic band fixing interface 117, a lower elastic band fixing interface 118, an exhalation side 119, and the like, the middle frame inner ring 110 is used for being fixed relative to the lining 12, the exhalation side lower port 112, the exhalation side upper port 114 and the exhalation side 119 are used together as a standby channel for exhaust gas discharge, the middle frame arc surface 111 is used for being fixed to the transparent mask 14, the inhalation side inlet 115 and the inhalation side outlet 116 are used as an air inlet channel for filtering air, and the upper elastic band fixing interface 117 and the lower elastic band fixing interface 118 are used for installation and fixation of the elastic band 16.
The air suction check valve film 13 is fixed to the air suction window 124 of the inner liner 12 by means of a film trunk 130, and the air inlet face 131 is attached to the inner side of the inner liner 12.
The transparent mask 14 comprises a panel sealing edge 140, a nose wing type bulge 141, an air valve installation groove 142 and a lining sealing edge 143, wherein the panel sealing edge 140 is used for sealing and fixing with the middle frame 11, the nose wing type bulge 141 is used for avoiding the space occupied by the lining 12, and the air valve installation groove 142 is used for fixing and sealing the expiratory check valve set 15.
Expiration check valve group 15 includes structures such as installation frame 150, hole net 151, outer hole net 152, one-way membrane 15a and binding face 153, installation frame 150 be used for with transparent face guard 14 is sealed fixed, hole net 151 with outer hole net 152 is used as the discharge passage of expired gas, one-way membrane 15a is installed hole net 151 one side and laminating are in binding face 153 is used for separating face guard assembly 1 and outside air.
The elastic band 16 is fixed on the middle frame 11 by an upper elastic band 161 and a lower elastic band 162 through a fixing joint 160 at the end thereof.
The connecting box 2 comprises a mask connecting port 200, a groove-shaped inner connecting surface 201, an anti-release buckle 202, a filter connecting port 203, a cylindrical outer connecting surface 204, a cylindrical inner connecting surface 205, a filter clamping tongue 206 and other structures, the connecting box 2 internally comprises a U-shaped groove 20a for sealing an upper exhaust port of the mask assembly 1, the groove-shaped inner connecting surface 201 of the mask connecting port 200 is used for being connected with the air passage interface end 113 of the mask assembly 1, the anti-release buckle 202 is buckled on the mask assembly 1 for preventing loosening, the filter connecting port 203 is used for being connected with the filter 3, and the cylindrical outer connecting surface 204 and the filter clamping tongue 206 are used for being mutually mounted, guided and positioned with the filter 3.
The filter 3 comprises a filter housing 31, a filter cotton 32 and a filter bottom cover 33, the filter housing is provided with a filter interface 310 for connecting with the connecting box 2 and a clamping groove 311 for fixing, the other end of the filter housing 31 is provided with a sealing edge 312 for assembling the filter bottom cover 33, the filter cotton 32 is installed in the filter housing 31, the filter bottom cover 33 is installed on the filter housing 31 through a self sealing groove 330, and air enters the filter 3 through the second air inlet mesh 331.
The filter cotton 32 meets the medical N95 protection standard. The filter 3 is a disposable product or the tightness of protection can be achieved by replacing the disposable filter cotton 32.
The utility model discloses a theory of operation does:
the utility model discloses a full face formula protective equipment, including the face guard, a connecting box is connected on face guard upper portion, install one or two filters on the connecting box, the face guard is fixed in the face of wearer through two elasticity belts that contain, the facial soft curtain of face guard and the facial laminating of wearer, the soft curtain of wing of nose of face guard and the laminating of the wing of nose of wearer, form a sealed space so around the nasal cavity of wearer, outside air gets into the filter through the inlet hole net of filter, obtain clean air through the filtration of filter core in the filter, the air gets into the exhaling channel interface on face guard upper portion through the inside air flue of connecting box, the air flows in the face guard, to the air inlet window on the wing of nose skeleton, push away and enter into the inside nose of wearer after inhaling the individual valve membrane and accomplish inspiratory circulation, to the waste gas of wearer's exhalation, the face guard has two flow directions, below expiration check valve and expiration way promptly, most of the exhaust air exhaled by the wearer is exhausted directly from below through the exhalation check valve group below the mask.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a full face formula protective equipment which characterized in that: including face guard assembly (1), connecting box (2) and filter (3), connecting box (2) are installed through the bayonet socket to face guard assembly (1) top, filter (3) rely on the filter connector to install connect on box (2), filter (3) with face guard assembly (1) with the help of connecting box (2) realize the intercommunication of gas circuit.
2. The full-face protective equipment according to claim 1, wherein: the face guard assembly (1) includes center (11), inside lining (12), the check valve membrane of breathing in (13), transparent face guard (14), expiration check valve group (15) and elasticity band (16), center (11) with reciprocal anchorage between inside lining (12), the check valve membrane of breathing in (13) is fixed on inside lining (12), transparent face guard (14) week four week is fixed on center (11) and partial region with inside lining (12) are connected, expiration check valve group (15) are fixed on transparent face guard (14), elasticity band (16) are fixed on center (11).
3. The full-face protective equipment according to claim 2, wherein: middle frame (11) is gone up and is contained middle frame inner circle (110), middle frame cambered surface (111), exhale way limit way end of a journey (112), air flue interface end (113), exhale way limit way end of a journey (114), inhale way entry (115), inhale way export (116), go up elasticity band fixed interface (117), down elasticity band fixed interface (118), exhale way (119) isotructure, middle frame inner circle (110) be used for with inside lining (12) carry out relevant fixed, exhale way limit way end of a journey (112) with exhale way limit way end of a journey (114) with exhale way (119) are used as waste gas exhaust's spare passageway together, middle frame cambered surface (111) be used for with transparent face mask (14) carry out the contact surface of reciprocal anchorage, inhale way entry (115) and inhale way exit (116) are used as the inlet channel of filtered air, go up elasticity band fixed interface (117) and down elasticity band fixed interface (118) are used for the spare passageway of elasticity band (16) And (5) mounting and fixing.
4. The full-face protective equipment according to claim 3, wherein: liner (12) contain soft curtain of inside lining outer lane (120), facial laminating (121), nose wing skeleton (122), the soft curtain of nose wing laminating (123), inspiration window (124), expiration seal along (125) and expiration window (126) isotructure, inside lining outer lane (120) be used for with center (11) fixed seal each other, the soft curtain of facial laminating (121) are used for face laminating of face guard assembly (1) and wearer, contain soft curtain of nose wing laminating (123) and inspiration window (124) on nose wing skeleton (122), inspiration window (124) contain check valve membrane mounting hole (12 a) and first inlet mesh hole (12 b), expiration seal along (125) be used for with transparent face guard (14) bonds mutually, expiration window (126) are used for the emission of the person's of breathing out gas.
5. The full-face protective equipment according to claim 4, wherein: the air suction check valve film (13) is fixed on the air suction window (124) of the lining (12) by means of a film trunk (130), and an air inlet surface (131) is attached to the inner side of the lining (12).
6. The full-face protective equipment according to claim 5, wherein: the transparent mask (14) comprises a panel sealing edge (140), a nose wing type bulge (141), an air valve installation groove (142), a lining sealing edge (143) and the like, wherein the panel sealing edge (140) is used for being sealed and fixed with the middle frame (11), the nose wing type bulge (141) is used for avoiding the space occupied by the lining (12), and the air valve installation groove (142) is used for fixing and sealing the expiration check valve group (15).
7. The full-face protective equipment according to claim 6, wherein: expiration check valve group (15) are including installing frame (150), hole net (151), outer hole net (152), one-way membrane (15 a) and binding face (153) isotructure, install frame (150) be used for with transparent face guard (14) is sealed fixed, hole net (151) with outer hole net (152) are used as the discharge passage of expired gas, one-way membrane (15 a) are installed hole net (151) one side and laminating are in binding face (153) are used for separating face guard assembly (1) and outside air.
8. The full-face protective equipment according to claim 7, wherein: the elastic belt (16) is fixed on the middle frame (11) through a fixing joint (160) at the end part of the elastic belt (161) and a fixing joint (162) at the end part of the elastic belt.
9. The full-face protective equipment according to claim 8, wherein: the connecting box (2) also comprises a mask connecting port (200), a groove-shaped inner joint surface (201), an anti-tripping button (202), a filter connecting port (203), a cylindrical outer joint surface (204), a cylindrical inner joint surface (205) and a filter clamping tongue (206), the interior of the connecting box (2) comprises a U-shaped groove (20 a) for sealing the upper exhaust port of the mask assembly (1), the groove-shaped inner junction (201) of the mask connection port (200) is configured to connect with the airway interface end (113) of the mask assembly (1), the anti-release button (202) is buckled on the mask assembly (1) to prevent the anti-release, the filter connecting port (203) is used for being connected with the filter (3), the cylindrical outer joint surface (204) and the filter latch (206) are used for mutually installing, guiding and positioning the filter (3).
10. The full-face protective equipment according to claim 9, wherein: the filter (3) comprises a filter shell (31), filter cotton (32), second air inlet mesh holes (331) and a filter bottom cover (33), wherein the filter shell is provided with a filter interface (310) used for being connected with the connecting box (2) and a clamping groove (311) used for fixing, the other end of the filter shell (31) is provided with a sealing edge (312) used for assembling the filter bottom cover (33), the filter cotton (32) is installed in the filter shell (31), the filter bottom cover (33) is installed on the filter shell (31) through a self sealing groove (330), and air enters the filter (3) through the second air inlet mesh holes (331).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249102.8U CN213159053U (en) | 2020-03-04 | 2020-03-04 | A full face protective equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249102.8U CN213159053U (en) | 2020-03-04 | 2020-03-04 | A full face protective equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213159053U true CN213159053U (en) | 2021-05-11 |
Family
ID=75763989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020249102.8U Expired - Fee Related CN213159053U (en) | 2020-03-04 | 2020-03-04 | A full face protective equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213159053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117018486A (en) * | 2023-08-18 | 2023-11-10 | 中国矿业大学 | A kind of full face mask powered air supply respiratory protector |
-
2020
- 2020-03-04 CN CN202020249102.8U patent/CN213159053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117018486A (en) * | 2023-08-18 | 2023-11-10 | 中国矿业大学 | A kind of full face mask powered air supply respiratory protector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11998777B2 (en) | Serviceable respirator system with configurable components | |
| KR20200016489A (en) | Air filtering mask of exhalation purification type having a region separation structure | |
| KR102391451B1 (en) | face mask | |
| JP2018512235A (en) | Pollutant inhalation prevention mask | |
| CN108741302A (en) | Protective mask | |
| US11491355B1 (en) | Respiration flow apparatus | |
| KR20200020088A (en) | Fine dusk blocking respirator | |
| CN213159053U (en) | A full face protective equipment | |
| CN112675448A (en) | Infectious disease anti-suffocating mask device for department of respiration | |
| CN209714045U (en) | Mouth and nose separate protective face mask | |
| CN208785629U (en) | A kind of self-priming air filter | |
| CN212369433U (en) | External air purifier for breathing channel separation filtering | |
| CN212038647U (en) | Reusable double-channel mask | |
| EP3846912B1 (en) | A face mask | |
| CN213159054U (en) | A full-face protective equipment with an electric filter air supply device | |
| CN212994597U (en) | Protective mask structure | |
| CN218790693U (en) | Novel virus protective mask | |
| CN213663830U (en) | Breathe internal medicine with preventing infecting nursing face guard | |
| CN214340293U (en) | Mouth and nose respiration separation filtering mask | |
| CN213467204U (en) | Filter module and protective facial mask | |
| CN213077273U (en) | Breathing separation type mask | |
| CN215231346U (en) | A non-invasive ventilator mask that is easy to drink water and suck sputum | |
| CN212994534U (en) | Novel mask capable of separating inspiration from expiration | |
| CN209711604U (en) | A kind of protective face mask | |
| US20230405367A1 (en) | Respiration flow apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |