CN111282173B - Rotary filter element type medical protective mask - Google Patents
Rotary filter element type medical protective mask Download PDFInfo
- Publication number
- CN111282173B CN111282173B CN202010140471.8A CN202010140471A CN111282173B CN 111282173 B CN111282173 B CN 111282173B CN 202010140471 A CN202010140471 A CN 202010140471A CN 111282173 B CN111282173 B CN 111282173B
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- China
- Prior art keywords
- cloth
- shell
- upper cavity
- driving shaft
- cavity
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- 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
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention provides a rotary filter element type medical protective 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 arranged in the shell, a communicating channel is arranged on the side wall of the shell, a partition plate is arranged in the mounting cavity and divides the mounting cavity into an upper cavity and a lower cavity, at least one through hole is formed in the partition plate, at least one annular boss extends towards the upper cavity from the side wall of the partition plate, the end face of the annular boss positioned on the upper cavity is a contact surface, at least one threaded hole communicated with the upper cavity is formed in the shell in a penetrating mode, a pressing sleeve is in threaded connection in each threaded hole, a vent hole is formed in; the cloth changing assembly is installed in the upper cavity. Use above-mentioned protective mask, 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 invention relates to a medical protective device, in particular to a rotary filter element type medical protective 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 face guard with a rotary filter element, which can automatically replace the filter sheet inside, and has the advantages of convenient operation and low cost.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a rotary filter element type medical protective 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, a communication channel is arranged on the side wall of the shell, one end of the communication channel is communicated with the inside of the installation cavity, the other end of the communication channel is communicated with the inside of a mask body, a partition plate is arranged in the installation cavity, the installation cavity is divided into an upper cavity and a lower cavity by the partition plate, at least one through hole is formed in the partition plate, at least one annular boss extends towards the upper cavity by the side wall of the partition plate, the end face of the annular boss positioned on the upper cavity is a contact face, and the annular bosses are concentric;
the shell is provided with at least one threaded hole communicated with the upper cavity in a penetrating manner, the threaded holes are opposite to the annular bosses one by one, each threaded hole is in threaded connection with a pressing sleeve, a vent hole is formed in each pressing sleeve, and the vent hole enables the upper cavity to be communicated with the external space;
the cloth changing device is arranged in the upper cavity and comprises a cloth changing frame and filter cloth, the filter cloth is circular, the filter cloth is arranged on the cloth changing frame, a driving shaft is arranged on the cloth changing frame, one end of the driving shaft rotates and penetrates through the shell, the other end of the driving shaft is connected to the cloth changing frame, and a connecting point of the driving shaft on the cloth changing frame is located at the center of the filter cloth;
the filter cloth covers the through hole and is close to the hole of the upper 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;
when the filter cloth pressing device is used for a period of time and 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, then force is applied to the driving shaft, the driving shaft can drive the whole filter cloth to rotate circumferentially, at the moment, the position of the filter cloth positioned between the pressing sleeve and the abutting surface of the annular boss changes, and then the pressing sleeve is screwed again to continue to be used;
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, the number of the through holes, the number of the annular bosses and the number of the threaded holes are at least two, and the through holes, the annular bosses and the threaded holes are distributed in a circumferential array by taking the connecting point of the driving shaft on the cloth changing frame as the center.
Through above-mentioned technical scheme, the air vent of a plurality of annular bosss of accessible admits air simultaneously to promote whole protective mask's ventilation effect.
Preferably, a sealing cover is arranged close to the through hole opening of the lower cavity.
Through above-mentioned technical scheme, according to the environment needs of doctorsing and nurses of reality, can seal sealed lid in through-hole entrance department wherein, under the prerequisite of guaranteeing the ventilation effect, can also prolong the length of time of single monolithic filter cloth single actual use.
Preferably, the cloth changing frame comprises two ring-shaped frame rings with different inner diameters, the two frame rings are arranged concentrically with the driving shaft respectively, the filter cloth is connected between the two frame rings, and a connecting piece is connected between the frame ring with the smaller inner diameter and the driving shaft.
Through above-mentioned technical scheme, the filter cloth can be located and compress tightly between cover and the annular boss, and two frame rings then can be located the both sides position of annular boss, and at this moment, can effectively guarantee the whole shape of filter cloth, through the rotation of drive shaft, the drive shaft also can rotate through connecting piece drive frame ring.
Preferably, the shell comprises an upper shell and a lower shell, the upper cavity is located on the upper shell, the partition plate is connected to the lower shell, and the upper shell is connected with the lower shell in a threaded mode.
Through above-mentioned technical scheme, accessible rotation epitheca or inferior valve, the epitheca alright follow the inferior valve and dismantle to change, maintain the cloth changing device in convenient to.
Preferably, the shaft end of the driving shaft close to the upper cavity is provided with a jack, the connecting piece is provided with an inserting shaft, and the inserting shaft can be inserted into the jack.
Through above-mentioned technical scheme, when taking place the separation between epitheca and the inferior valve, can extract the spiale from the jack to dismantle filter cloth, the cloth changing frame from the drive shaft in the convenience.
Preferably, a sealing ring is arranged at the joint between the driving shaft and the shell.
Through above-mentioned technical scheme, the leakproofness between drive shaft and the casing can be guaranteed to the sealing washer.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment;
FIG. 2 is a schematic cross-sectional view of the respirator;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a schematic structural diagram of the cloth changing device.
Reference numerals: 1. a mask body; 2. transparent glass; 3. a respirator; 4. a housing; 41. an upper shell; 42. a lower case; 5. a mounting cavity; 6. a communication channel; 7. a partition plate; 8. an upper chamber; 9. a lower cavity; 10. a through hole; 11. an annular boss; 12. a contact surface; 13. a threaded hole; 14. a compression sleeve; 15. a vent hole; 16. a cloth changing device; 161. changing the cloth rack; 162. a frame ring; 163. a connecting member; 164. a filter cloth; 17. a drive shaft; 18. a sealing cover; 19. a jack; 20. inserting a shaft; 21. and (5) sealing rings.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings 1-4 to make the technical solution of the present invention easier to understand and grasp.
The first embodiment is as follows:
a rotary filter element type medical protective mask comprises a mask body, wherein transparent glass and a respirator are arranged on the mask body. The mask body is worn on the face of a user, the user can observe the surrounding environment through the transparent glass, and the respirator can filter external air for the user matched with the mask body to breathe.
Wherein, the respirator includes the casing, is equipped with the installation cavity in the casing, and the casing includes epitheca, inferior valve, and the epitheca is located the epitheca, links to each other through the screw thread mode between epitheca and the inferior valve.
And a communicating channel is arranged on the side wall of the lower shell, one end of the communicating channel is communicated with the inside of the mounting cavity, and the other end of the communicating channel is communicated with the inside of the mask body.
The lower shell is provided with a partition board which divides the installation cavity into an upper cavity and a lower cavity. The partition board is provided with at least one through hole, and in the first embodiment, the number of the through holes is three. The lateral wall of the clapboard extends towards the upper cavity to form at least one annular boss, and in the first embodiment, the number of the annular bosses is also three. The end face of the annular boss positioned on the upper cavity is an abutting face, and the annular bosses are concentric with the through holes in a one-to-one correspondence mode. A sealing cap may be mounted proximate each through-hole aperture of the lower chamber.
The casing is gone up to run through and is equipped with at least one screw hole that communicates with each other with the epicoele, and the screw hole is relative with annular boss one-to-one, and in this embodiment one, the quantity of screw hole is three. And each threaded hole is internally provided with a pressing sleeve in threaded connection, and the upper cavity is communicated with the external space through the vent hole.
The through holes, the annular bosses and the threaded holes are distributed in a circumferential array by taking the connecting points of the driving shaft on the cloth changing frame as centers.
The cloth changing device is arranged in the upper cavity. The cloth changing device comprises a cloth changing frame and filter cloth, the filter cloth is in a ring shape, the filter cloth is arranged on the cloth changing frame, a driving shaft is arranged on the cloth changing frame, one end of the driving shaft rotates and penetrates through the shell, the other end of the driving shaft is connected to the cloth changing frame, and a connecting point of the driving shaft on the cloth changing frame is located at the center of the filter cloth; the filter cloth covers the through hole and is close to the hole of the upper cavity.
Wherein, trade cloth holder and include two ring shape and the not frame ring of internal diameter variation in size, two frame rings set up in the drive shaft with a heart respectively, and the filter cloth is connected between two frame rings, is connected with the connecting piece between the less frame ring of internal diameter and the drive shaft. The shaft end of the driving shaft close to the upper cavity is provided with a jack, the connecting piece is provided with an inserting shaft, and the inserting shaft can be inserted into the jack. And a sealing ring is arranged at the joint between the driving shaft and the shell.
Example two:
a method of using a rotating filter element medical protective mask as in the first embodiment:
the method comprises the following steps: selectively opening a sealing cover on one side of the through hole according to the requirements of the actual medical care environment;
step two: connecting the communication channel of the respirator to the mask body;
step three: the mask body is worn on the face of a user;
step four: after the pressing sleeve is used for a period of time, the pressing sleeve is rotated, the pressing sleeve is matched with the threaded hole, and the end part of the pressing sleeve can be separated from the abutting surface;
step five: force is applied to the driving shaft, the driving shaft drives the connecting piece, the frame ring and the filter cloth to rotate, and the position of the filter cloth between the end part of the pressing sleeve and the abutting surface is changed;
step six: and the pressing sleeve rotates reversely again, and the end part of the pressing sleeve can press the new filter cloth onto the abutting surface to complete the replacement of the filter cloth in the mask.
Example three:
a method for assembling and disassembling a rotary filter element type medical protective mask as in the first embodiment:
the method comprises the following steps: the upper shell is rotated in the circumferential direction, so that the upper shell is separated from the lower shell;
step two: pulling the plug shaft out of the jack;
step three: replacing the cloth changing frame, the filter cloth and the connecting piece, and reinserting the insertion shafts on the new cloth changing frame, the filter cloth and the connecting piece into the insertion holes;
step four: the upper shell is rotated reversely, and the upper shell and the lower shell are screwed together.
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 (5)
1. The utility model provides a medical protective face guard of rotatory filter core formula, includes the face guard body, install transparent glass and respirator, characterized by on the face guard body:
the respirator comprises a shell, wherein an installation cavity is arranged in the shell, a communication channel is arranged on the side wall of the shell, one end of the communication channel is communicated with the inside of the installation cavity, the other end of the communication channel is communicated with the inside of a mask body, a partition plate is arranged in the installation cavity, the installation cavity is divided into an upper cavity and a lower cavity by the partition plate, at least two through holes are formed in the partition plate, at least two annular bosses extend towards the upper cavity from the side wall of the partition plate, the end faces of the annular bosses on the upper cavity are abutting faces, and the annular bosses are concentric with the;
at least two threaded holes communicated with the upper cavity penetrate through the shell, the threaded holes are opposite to the annular bosses one by one, each threaded hole is in threaded connection with a pressing sleeve, a vent hole is formed in each pressing sleeve, and the vent hole enables the upper cavity to be communicated with the external space;
the cloth changing device is arranged in the upper cavity and comprises a cloth changing frame and filter cloth, the filter cloth is circular, the filter cloth is arranged on the cloth changing frame, a driving shaft is arranged on the cloth changing frame, one end of the driving shaft rotates and penetrates through the shell, the other end of the driving shaft is connected to the cloth changing frame, and a connecting point of the driving shaft on the cloth changing frame is located at the center of the filter cloth;
the filter cloth covers the through hole close to the orifice of the upper cavity;
the through holes, the annular bosses and the threaded holes are distributed in a circumferential array by taking the connecting points of the driving shaft on the cloth changing frame as centers;
the cloth changing frame comprises two annular frame rings with different inner diameters, the two frame rings are respectively arranged concentrically with the driving shaft, the filter cloth is connected between the two frame rings, and a connecting piece is connected between the frame ring with the smaller inner diameter and the driving shaft;
the end part of the pressing sleeve presses the filter cloth onto the abutting surface of the annular boss by rotating the pressing sleeve, the mask body is worn on the face of a user, external airflow enters from the vent hole, enters the through hole under the filtering action of the filter cloth and finally enters the mask body for the user to breathe;
after using a period, by compressing tightly in the conflict face of annular boss and compressing tightly when the filter cloth filter effect between the cover is not good, the cover is compressed tightly in the rotation of user's accessible for the conflict face that compresses tightly cover and annular boss breaks away from one end distance mutually, application of force in the drive shaft again, the drive shaft can drive whole filter cloth and carry out the rotation in a circumferential direction, at this moment, it can change to be located to compress tightly the filter cloth position that is right between the conflict face of cover and annular boss, again will compress tightly the cover and screw up again, can continue to use.
2. The rotary filter element type medical protective mask as claimed in claim 1, wherein: a sealing cover is arranged at the position close to the hole opening of the through hole of the lower cavity.
3. The rotary filter element type medical protective mask as claimed in claim 1, wherein: the casing includes epitheca, inferior valve, the epicoele is located the epitheca, the baffle is connected in the inferior valve, link to each other through the screw thread mode between epitheca and the inferior valve.
4. The rotary filter element type medical protective mask according to claim 3, wherein: the driving shaft is provided with a jack at the shaft end close to the upper cavity, the connecting piece is provided with an inserting shaft, and the inserting shaft can be inserted into the jack.
5. The rotary filter element type medical protective mask as claimed in claim 1, wherein: and a sealing ring is arranged at the joint between the driving shaft and the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140471.8A CN111282173B (en) | 2020-03-03 | 2020-03-03 | Rotary filter element type medical protective mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140471.8A CN111282173B (en) | 2020-03-03 | 2020-03-03 | Rotary filter element type medical protective mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111282173A CN111282173A (en) | 2020-06-16 |
| CN111282173B true CN111282173B (en) | 2021-06-22 |
Family
ID=71018025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010140471.8A Expired - Fee Related CN111282173B (en) | 2020-03-03 | 2020-03-03 | Rotary filter element type medical protective mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111282173B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546478B (en) * | 2021-01-12 | 2021-12-10 | 金华市万航防护用品有限公司 | Air filtering face mask |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002126111A (en) * | 2000-10-20 | 2002-05-08 | Koken Ltd | Opening-closing device of filter unit |
| US6500387B1 (en) * | 2000-05-19 | 2002-12-31 | Nukuest, Inc. | Air actinism chamber apparatus and method |
| US20080245364A1 (en) * | 2007-04-03 | 2008-10-09 | Keith Patterson | Filtering respirator with nasal and oral separation |
| US20090065006A1 (en) * | 2007-09-07 | 2009-03-12 | Keith Patterson | Filtering respirator with rotatable filter |
| CN204146396U (en) * | 2014-11-10 | 2015-02-11 | 纪德尚 | A kind of epidemic prevention mask |
| CN204469047U (en) * | 2015-02-15 | 2015-07-15 | 张宏军 | The protector of respiratory disease |
| CN105327464A (en) * | 2015-11-13 | 2016-02-17 | 惠州市环发环保科技有限公司 | Portable protective mask |
| CN106333400A (en) * | 2016-11-30 | 2017-01-18 | 美佳德科技（无锡）有限公司 | Mask capable of adjusting filter strength by electrodeless |
| KR20180027483A (en) * | 2018-03-07 | 2018-03-14 | 주식회사 카이렌 | Oxygen mask |
| CN108325113A (en) * | 2017-12-27 | 2018-07-27 | 山东星火科学技术研究院 | It is easy to the self-absorbing filtering type chemistry breathing mask of transformation |
-
2020
- 2020-03-03 CN CN202010140471.8A patent/CN111282173B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6500387B1 (en) * | 2000-05-19 | 2002-12-31 | Nukuest, Inc. | Air actinism chamber apparatus and method |
| JP2002126111A (en) * | 2000-10-20 | 2002-05-08 | Koken Ltd | Opening-closing device of filter unit |
| US20080245364A1 (en) * | 2007-04-03 | 2008-10-09 | Keith Patterson | Filtering respirator with nasal and oral separation |
| US20090065006A1 (en) * | 2007-09-07 | 2009-03-12 | Keith Patterson | Filtering respirator with rotatable filter |
| CN204146396U (en) * | 2014-11-10 | 2015-02-11 | 纪德尚 | A kind of epidemic prevention mask |
| CN204469047U (en) * | 2015-02-15 | 2015-07-15 | 张宏军 | The protector of respiratory disease |
| CN105327464A (en) * | 2015-11-13 | 2016-02-17 | 惠州市环发环保科技有限公司 | Portable protective mask |
| CN106333400A (en) * | 2016-11-30 | 2017-01-18 | 美佳德科技（无锡）有限公司 | Mask capable of adjusting filter strength by electrodeless |
| CN108325113A (en) * | 2017-12-27 | 2018-07-27 | 山东星火科学技术研究院 | It is easy to the self-absorbing filtering type chemistry breathing mask of transformation |
| KR20180027483A (en) * | 2018-03-07 | 2018-03-14 | 주식회사 카이렌 | Oxygen mask |
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| Publication number | Publication date |
|---|---|
| CN111282173A (en) | 2020-06-16 |
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| Date | Code | Title | Description |
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| 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: Zhu Huiqun Inventor after: Jin Fuhua Inventor before: Jin Fuhua |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210519 Address after: No.151 Shennong Road, Juxian County, Rizhao City, Shandong Province Applicant after: JUXIAN PEOPLE'S Hospital Address before: 318000 Xueyuan North Road, Jiaojiang District, Taizhou City, Zhejiang Province Applicant before: Jin Fuhua |
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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: 20210622 |