CN111202924B - Medical protection level face guard - Google Patents
Medical protection level face guard Download PDFInfo
- Publication number
- CN111202924B CN111202924B CN202010137400.2A CN202010137400A CN111202924B CN 111202924 B CN111202924 B CN 111202924B CN 202010137400 A CN202010137400 A CN 202010137400A CN 111202924 B CN111202924 B CN 111202924B
- Authority
- CN
- China
- Prior art keywords
- driving roller
- filter cloth
- pressing sleeve
- installation cavity
- transmission
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
Abstract
The invention provides a medical protection grade mask. The respirator comprises a mask body, wherein transparent glass and a respirator are mounted on the mask body, the respirator comprises a shell, a mounting cavity is formed in the shell, an annular boss is arranged in the mounting cavity, a communicating channel is arranged in the annular boss, one end of the communicating channel is communicated with the mounting cavity, and the other end of the communicating channel is communicated with the interior of the mask body; a threaded hole penetrates through the shell, a pressing sleeve is connected with the thread in the threaded hole, an air hole is formed in the pressing sleeve, and the air hole enables the installation cavity to be communicated with an external space; the end surface of the annular boss positioned in the installation cavity is an abutting surface, and the end part of the pressing sleeve can be pressed against the abutting surface; also comprises a cloth changing component. In the above-mentioned operation process, need not to demolish the respirator, more need not to take the mask body off from user's face, can not destroy the effective isolation medium between medical rescue personnel and the rescue environment, the simple operation nature is high, and use cost is low.
Description
Technical Field
The present invention relates to medical filtration devices, and in particular, to a medical protective grade mask.
Background
The existing medical mask structure generally comprises a mask body, wherein transparent glass and a respirator are arranged on the mask body, and a filter disc is arranged in the respirator; in the actual use process, the mask body covers the face of a user, the eyes of the user can observe the surrounding environment through the transparent glass, outside air can be firstly filtered by the filter disc in the respirator and then is inhaled into the respiratory tract by the user, and the air filtering effect is achieved.
Above-mentioned medical mask applies to when in epidemic situation rescue environment, medical rescue personnel can wear the protective clothing by oneself, wear the helmet, the cassette in traditional medical mask respirator only can keep effective filter effect within a few hours, and in case surpass effective filter time, just need unpack the respirator apart, change the cassette, the operation is changed to the aforesaid, the effective isolation medium between medical rescue personnel and the rescue environment can certainly be destroyed, at this moment, just, require medical rescue personnel to change complete medical rescue equipment, the simple operation is poor, and use cost is high.
Disclosure of Invention
In view of this, the present invention provides a medical protective mask, which can automatically replace a filter inside the medical protective mask, and has the advantages of good operation convenience and low use cost.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a medical protection-level mask comprises a mask body, wherein transparent glass and a respirator are arranged on the mask body,
the respirator comprises a shell, wherein an installation cavity is arranged in the shell, an annular boss is arranged in the installation cavity, a communicating channel is arranged in the annular boss, one end of the communicating channel is communicated with the installation cavity, and the other end of the communicating channel is communicated with the interior of a mask body;
a threaded hole penetrates through the shell, a compression sleeve is connected with the threaded hole in a threaded manner, an air hole is formed in the compression sleeve, and the air hole enables the installation cavity to be communicated with an external space;
the end face of the annular boss positioned in the installation cavity is an abutting face, and the end part of the pressing sleeve can be pressed on the abutting face;
the cloth changing assembly comprises a first transmission piece and a second transmission piece which are distributed on two sides of the pressing sleeve, the first transmission piece comprises a first transmission motor and a first transmission roller connected to an output shaft of the first transmission motor, the second transmission piece comprises a second transmission motor and a second transmission roller connected to an output shaft of the second transmission motor, a filter cloth is connected between the first transmission roller and the second transmission roller, and the filter cloth is located between the abutting surface of the annular boss and the pressing sleeve;
the pressing sleeve can press the filter cloth onto the abutting surface, and the filter cloth can cover the channel opening of the communicating channel in the installation cavity.
According to the technical scheme, in the actual use process, the pressing sleeve is rotated, the end part of the pressing sleeve presses the filter cloth onto the abutting surface of the annular boss, the mask body is worn on the face of a user, external airflow enters from the vent holes, enters the through holes under the filtering effect of the filter cloth and finally enters the mask body for the user to breathe;
after the filter cloth pressing device is used for a period of time, when the filter cloth pressed between the abutting surface of the annular boss and the pressing sleeve has poor filtering effect, a user can rotate the pressing sleeve to enable the pressing sleeve to be separated from the abutting surface of the annular boss by a distance, the first transmission motor drives the first transmission roller to rotate, the second transmission motor drives the second transmission roller to rotate, the filter cloth which is originally positioned below the pressing sleeve can be gradually wound into the second transmission roller, the new filter cloth in the first transmission roller can be laid between the pressing sleeve and the abutting surface of the annular boss again, then the pressing sleeve is rotated reversely, and the end part of the pressing sleeve can press the new filter cloth onto the abutting surface of the annular boss again to be used continuously;
in the above-mentioned operation process, need not to demolish the respirator, more need not to take the mask body off from user's face, can not destroy the effective isolation medium between medical rescue personnel and the rescue environment, the simple operation nature is high, and use cost is low.
Preferably, be connected with first sheet rubber between the conflict face and the chamber wall of installation cavity, through the separation effect of first sheet rubber will the antibiotic chamber is separated to the installation cavity in, the second driving medium is located antibiotic intracavity, the filter cloth passes first sheet rubber.
Through above-mentioned technical scheme, the filter disc surface after using a period of time can be stained with harmful substance such as virus, bacterium, along with the rolling of filter cloth by second driving roller, the filter cloth that has harmful substance then can remove to the antibiotic intracavity, and first rubber sheet can separate filter cloth and new filter cloth that have harmful substance, reduces the condition that has harmful substance mutual contamination.
Preferably, the cloth changing device further comprises a third driving roller, the third driving roller is positioned on one side of the second driving roller, the filter cloth is sequentially wound on the first driving roller, the third driving roller and the second driving roller, and the filter cloth positioned between the first driving roller and the third driving roller covers a channel port of the communicating channel, which is positioned in the installation cavity;
the third driving roller is positioned in the antibacterial cavity.
Through the technical scheme, the length of the filter cloth between the first transmission roller and the second transmission roller is favorably lengthened, and the condition of mutual pollution of existing harmful substances is further reduced; in addition, the whole length of the filter cloth between the first transmission roller and the second transmission roller can be effectively controlled, so that the paving smoothness of the section of the filter cloth is improved.
Preferably, be equipped with the second sheet rubber in the antibiotic intracavity, epicoele and cavity are separated into with antibiotic chamber to the second sheet rubber, the third driving roller is located the epicoele, the second driving medium is located the cavity of resorption, the second sheet rubber is passed to the filter cloth.
Through above-mentioned technical scheme, because the filter cloth that has harmful substance can be by the book on the second driving roller, at this moment, have first sheet rubber and second sheet rubber between second driving roller and the first driving roller, further reduce again and go out the condition that has harmful substance mutual contamination.
Preferably, the shell is provided with a sterilization hole, the sterilization hole penetrates through the lower cavity, the sterilization hole is opposite to the second transmission roller, and the sterilization hole is provided with a hole plug.
Through the technical scheme, in the actual use process, the hole plugs in the sterilization holes can be pulled out after a period of time, and then a small amount of sterilization liquid passes through the sterilization holes and is smeared on the filter cloth on the surface of the second driving roller, so that harmful substances carried by the filter cloth on the second driving roller are reduced.
Preferably, an annular groove is formed in the abutting surface, an annular convex block is arranged on the side face, close to the abutting surface, of the pressing sleeve, and the annular convex block can be embedded with the annular groove.
Through above-mentioned technical scheme, when compressing tightly the side that the cover is close to the conflict face and contact with the conflict face, annular lug and annular groove mutually support, and the filter cloth can be extruded between annular lug and annular groove, the installation stability of filter cloth, and the filter effect is good.
Preferably, the number of the respirators arranged on the mask body is two.
Through the technical scheme, the air permeability inside the mask body can be effectively enhanced.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment;
FIG. 2 is a first internal block diagram of the respirator;
FIG. 3 is a second internal view of the respirator.
Reference numerals: 1. a mask body; 2. transparent glass; 3. a respirator; 4. a housing; 5. a mounting cavity; 6. an annular boss; 7. a communication channel; 8. a threaded hole; 9. a compression sleeve; 10. a vent hole; 11. a contact surface; 12. a cloth changing assembly; 13. a first transmission member; 14. a first drive motor; 15. a first drive roller; 16. a second transmission member; 17. a second drive motor; 18. a second driving roller; 19. a filter cloth; 20. a first rubber sheet; 21. an antimicrobial cavity; 22. an upper chamber; 23. a lower cavity; 24. a third driving roller; 25. a second rubber sheet; 26. sterilizing holes; 27. a hole plug; 28. an annular groove; 29. and an annular projection.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings 1-3 to make the technical solution of the present invention easier to understand and grasp.
The first embodiment is as follows:
a medical protection-level mask comprises a mask body 1, wherein transparent glass 2 and two respirators 3 are mounted on the mask body 1. The mask body 1 is worn on the face of a user, the user can view the surrounding environment through the transparent glass 2, and the respirator 3 can filter the outside air for the user who fits the mask body 1 to breathe.
A threaded hole 8 is formed in the shell 4 in a penetrating mode, a pressing sleeve 9 is connected to the inner thread of the threaded hole 8, an air vent 10 is arranged in the pressing sleeve 9, the mounting cavity 5 is communicated with the outer space through the air vent 10, and the air vent 10 is connected with the communication channel 7.
The end face of the annular boss 6 positioned in the installation cavity 5 is an abutting face 11, and the end part of the pressing sleeve 9 can be pressed on the abutting face 11. The abutting surface 11 is provided with an annular groove 28, the side surface of the pressing sleeve 9 close to the abutting surface 11 is provided with an annular bump 29, and the annular bump 29 can be mutually embedded with the annular groove 28.
A cloth changing assembly 12 is arranged in the installation cavity 5. The cloth changing assembly 12 comprises a first transmission piece 13, a second transmission piece 16 and a third transmission roller 24 which are distributed on two sides of the pressing sleeve 9. The first transmission member 13 includes a first transmission motor 14, and a first transmission roller 15 connected to an output shaft of the first transmission motor 14. The second transmission member 16 includes a second transmission motor 17, and a second transmission roller 18 connected to an output shaft of the second transmission motor 17. The third driving roller 24 is located on the side of the second driving roller 18. The first driving roller 15, the second driving roller 18 and the third driving roller 24 are arranged in parallel.
A first rubber sheet 20 is connected between the abutting surface 11 and the wall of the installation cavity 5, and an antibacterial cavity 21 is separated from the installation cavity 5 through the separation effect of the first rubber sheet 20. The second rubber sheet 25 is arranged in the antibacterial cavity 21, the antibacterial cavity 21 is divided into an upper cavity 22 and a lower cavity 23 by the second rubber sheet 25, and the upper cavity 22 is located above the lower cavity 23.
The filter cloth 19 is wound on the first driving roller 15, the third driving roller 24 and the second driving roller 18 in sequence, and the filter cloth 19 between the first driving roller 15 and the third driving roller 24 covers a channel opening of the communication channel 7 in the installation cavity 5.
The pressing sleeve 9 can press the filter cloth 19 against the abutting surface 11, and the filter cloth 19 can cover the passage opening of the communication passage 7 in the installation cavity 5. The second transmission piece 16 is positioned in the antibacterial cavity 21, and the filter cloth 19 passes through the first rubber sheet 20. The third driving roller 24 is located in the antibiotic chamber 21. The third driving roller 24 is positioned in the upper cavity 22, the second driving member 16 is positioned in the lower cavity 23, and the filter cloth 19 passes through the second rubber sheet 25.
The casing 4 is provided with a sterilization hole 26, the sterilization hole 26 penetrates through the lower cavity 23, the sterilization hole 26 is opposite to the second driving roller 18, and the sterilization hole 26 is provided with a hole plug 27.
Example two:
a method of using a medical protective grade mask as in the first embodiment:
the method comprises the following steps: connecting the communication passage 7 of the respirator 3 to the mask body 1;
step two: the mask body 1 is worn on the face of a user;
step three: after the pressing sleeve 9 is used for a period of time, the pressing sleeve 9 is rotated, the pressing sleeve 9 is matched with the threaded hole 8, and the end part of the pressing sleeve 9 can be separated from the abutting surface 11;
step four: when the first transmission motor 14 and the second transmission motor 17 are started in a matching way, the filter cloth 19 on the first transmission roller 15 can be gradually rotated out, the polluted filter cloth 19 can be gradually wound on the second transmission roller 18, and the position of the filter cloth 19 between the end part of the pressing sleeve 9 and the abutting surface 11 can be changed;
step five: and the pressing sleeve 9 is rotated reversely again, and the end part of the pressing sleeve 9 presses the new filter cloth 19 onto the abutting surface 11, so that the replacement of the inner filter cloth 19 of the mask is completed.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.
Claims (7)
1. The utility model provides a medical treatment protection level face guard, includes the face guard body (1), install clear glass (2) and respirator (3) on the face guard body (1), characterized by:
the respirator (3) comprises a shell (4), an installation cavity (5) is arranged in the shell (4), an annular boss (6) is arranged in the installation cavity (5), a communicating channel (7) is arranged in the annular boss (6), one end of the communicating channel (7) is communicated with the installation cavity (5), and the other end of the communicating channel (7) is communicated with the interior of the mask body (1);
a threaded hole (8) penetrates through the shell (4), a pressing sleeve (9) is connected to the threaded hole (8) in a threaded manner, a vent hole (10) is formed in the pressing sleeve (9), and the mounting cavity (5) is communicated with the external space through the vent hole (10);
the end face of the annular boss (6) positioned in the installation cavity (5) is an abutting face (11), and the end part of the pressing sleeve (9) can be pressed on the abutting face (11);
the cloth changing device is characterized by further comprising a cloth changing assembly (12), wherein the cloth changing assembly (12) comprises a first transmission piece (13) and a second transmission piece (16) which are distributed on two sides of the pressing sleeve (9), the first transmission piece (13) comprises a first transmission motor (14) and a first transmission roller (15) connected to an output shaft of the first transmission motor (14), the second transmission piece (16) comprises a second transmission motor (17) and a second transmission roller (18) connected to an output shaft of the second transmission motor (17), a filter cloth (19) is connected between the first transmission roller (15) and the second transmission roller (18), and the filter cloth (19) is located between the abutting surface (11) of the annular boss (6) and the pressing sleeve (9);
the pressing sleeve (9) can press the filter cloth (19) to the abutting surface (11), and the filter cloth (19) can cover a channel opening of the communication channel (7) in the installation cavity (5).
2. A medical protective grade mask as claimed in claim 1, wherein: be connected with first sheet rubber (20) between the chamber wall of conflict face (11) and installation cavity (5), the separation effect through first sheet rubber (20) will divide antibiotic chamber (21) in installation cavity (5), second driving medium (16) are located antibiotic chamber (21), first sheet rubber (20) are passed in filter cloth (19).
3. A medical protective grade mask as claimed in claim 2, wherein: the cloth changing device further comprises a third driving roller (24), the third driving roller (24) is located on one side of the second driving roller (18), the filter cloth (19) is sequentially wound on the first driving roller (15), the third driving roller (24) and the second driving roller (18), and the filter cloth (19) located between the first driving roller (15) and the third driving roller (24) covers a channel opening of the communicating channel (7) located in the installation cavity (5);
the third driving roller (24) is positioned in the antibacterial cavity (21).
4. A medical protective grade mask as claimed in claim 3, wherein: be equipped with second sheet rubber (25) in antibiotic chamber (21), epicoele (22) and cavity of resorption (23) are separated into with antibiotic chamber (21) in second sheet rubber (25), third driving roller (24) are located epicoele (22), second driving medium (16) are located cavity of resorption (23), second sheet rubber (25) are passed in filter cloth (19).
5. A medical protective grade mask as claimed in claim 4, wherein: be equipped with on casing (4) and disinfect hole (26), disinfect hole (26) run through in lower chamber (23) position, it is relative with second driving roller (18) to disinfect hole (26), be provided with hole stopper (27) on disinfecting hole (26).
6. A medical protective grade mask as claimed in any one of claims 1 to 5, wherein: be equipped with annular groove (28) on conflict face (11), it is equipped with annular lug (29) on the side that compresses tightly cover (9) are close to conflict face (11), annular lug (29) can be with the mutual gomphosis of annular groove (28).
7. A medical protective grade mask as claimed in any one of claims 1 to 5, wherein: the mask body (1) is provided with two respirators (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010137400.2A CN111202924B (en) | 2020-03-03 | 2020-03-03 | Medical protection level face guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010137400.2A CN111202924B (en) | 2020-03-03 | 2020-03-03 | Medical protection level face guard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111202924A CN111202924A (en) | 2020-05-29 |
| CN111202924B true CN111202924B (en) | 2021-02-19 |
Family
ID=70783174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010137400.2A Expired - Fee Related CN111202924B (en) | 2020-03-03 | 2020-03-03 | Medical protection level face guard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111202924B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111657593B (en) * | 2020-06-23 | 2022-02-15 | 河南亚都实业有限公司 | Adjustable protective facial mask |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5535736A (en) * | 1995-06-23 | 1996-07-16 | Jzaw; Gwo-Shyong | Inflatable mouthpiece |
| US7188622B2 (en) * | 2003-06-19 | 2007-03-13 | 3M Innovative Properties Company | Filtering face mask that has a resilient seal surface in its exhalation valve |
| JP4371271B2 (en) * | 2005-06-24 | 2009-11-25 | 興研株式会社 | Filter unit |
| EP2969040A4 (en) * | 2013-03-15 | 2016-11-09 | Crosstex International Inc | A facemask having one or more nanofiber layers |
| CN203898973U (en) * | 2014-06-16 | 2014-10-29 | 广州市家泰通风设备有限公司 | Portable PM2.5 (particulate matter2.5) purification respirator with movable filter band |
| CN206526418U (en) * | 2017-01-16 | 2017-09-29 | 厦门合净美生物科技有限公司 | Sorbent filter mouth mask |
| CN208260024U (en) * | 2018-02-26 | 2018-12-21 | 响水县米兰纺织有限公司 | A kind of recyclable weaving mask |
| CN108936879A (en) * | 2018-06-01 | 2018-12-07 | 青岛大学附属医院 | A kind of medical treatment and nursing protective device |
-
2020
- 2020-03-03 CN CN202010137400.2A patent/CN111202924B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN111202924A (en) | 2020-05-29 |
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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 | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Early spring celery Inventor after: Wang Juntao Inventor after: Zhang Xiao Inventor after: Dong Pingying Inventor before: Dong Pingying |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210129 Address after: 266000 No. 16, Jiangsu Road, Qingdao, Shandong Applicant after: THE AFFILIATED HOSPITAL OF QINGDAO University Address before: 317000 no.3-62, Yangping village, Duqiao Town, Linhai City, Taizhou City, Zhejiang Province Applicant before: Dong Pingying |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210219 |