CN102319491B - Filter assembly coaxial with breather valve and provided with expiratory channel - Google Patents
Filter assembly coaxial with breather valve and provided with expiratory channel Download PDFInfo
- Publication number
- CN102319491B CN102319491B CN 201110302660 CN201110302660A CN102319491B CN 102319491 B CN102319491 B CN 102319491B CN 201110302660 CN201110302660 CN 201110302660 CN 201110302660 A CN201110302660 A CN 201110302660A CN 102319491 B CN102319491 B CN 102319491B
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- CN
- China
- Prior art keywords
- filter assembly
- clapper
- diameter cylinder
- annular
- cylinder
- 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.)
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Classifications
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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
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/10—Valves
-
- 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 relates to a filter assembly coaxial with breather valve and provided with an expiratory channel, and belongs to the technical field of manufacturing of gas mask breather valves. The filter assembly comprises a breather filter assembly body, an annular one-way valve clack, a round one-way valve clack and a valve block baffle ring, wherein the breather filter assembly body consists of two coaxial cylinders; the center of a small-diameter cylinder is provided with a core shaft; the round one-way valve clack is sleeved on the core shaft; the valve block baffle ring is arranged on the top part of the small-diameter cylinder in a clamping manner; and the annular one-way valve clack is sleeved in a large-diameter cylinder. In the invention, the round one-way valve clack and the annular one-way valve clack are coaxially arranged, and the distance of a respiration circulation channel is shortened, so a mask is smooth in respiration, comfortable to wear and difficult to slip off, the machining difficulty of mould making and injection molding is reduced, the comprehensive tightness and isolation of the mask are improved, and the problems that an expiratory valve and an inspiration valve of the traditional mask are not arranged coaxially, the respiration circulation channel is long, oppressed feel is produced during expiration, the volume is large and the weight is heavy are solved. Therefore, the filter assembly is suitable for being used with all dustproof gas masks in a matching way.
Description
Technical field
The present invention relates to the filter assembly of the coaxial band exhalation passages of a kind of breather valve, belong to the breather valve manufacturing technology field of breathing mask.
Background technology
The dust proof and gas defence face shield uses very extensive as important protective articles.The breather valve of at present all dust proof and gas defence face shields all is air-breathing from a passage, exhales through another or in addition plural passage; And outlet valve generally is contained in the bottom or the both sides of face shield, and mouth can not be over against the outlet valve waste gas of breathing out.There is certain defective in such breather valve arrangement, and the one, because adopting separately to make, breather valve make the respiration cycle passage long, cause to breathe to have some setbacks, produce the sense of feeling oppressed; The 2nd, to leave the multiple tracks exhalation passages during face shield injection moulding, the difficulty of processing when increasing mould manufacturing and injection moulding; The 3rd, be unfavorable for the airtight performance of face shield, reduce the filter capacity of dust proof and gas defence face shield; The 4th, the volume and weight of increasing dust proof and gas defence face shield, uncomfortable when face shield is worn, easy landing.
Summary of the invention
The objective of the invention is to; Provide a kind of inlet valve and outlet valve to adopt coaxial installation; Shorten the distance of respiration cycle passage, and have special-purpose exhalation passages, reduce dust proof and gas defence face shield volume and weight; Tidal air is smooth and easy, comfortable wearing, airtight performance are good, the difficulty of processing when reducing mould manufacturing and injection moulding; It is long that existing inlet valve of solution and outlet valve disalignment are installed the respiration cycle passage, processing and manufacturing trouble, the filter assembly of the coaxial band exhalation passages of the breather valve of uncomfortable problem when face shield is worn.
The present invention realizes above-mentioned purpose through following technical scheme:
The filter assembly of the coaxial band exhalation passages of this breather valve is made up of breathing circuit filter assembly body, annular clapper, disk clapper, valve block back-up ring and exhalation passages; It is characterized in that: breathing circuit filter assembly body is made up of the cylinder of two coaxial small one and large one; The top of cylinder is the opening shape; Be manufactured with reinforcement on the bottom opening of cylinder, big or small cylinder is connected by the reinforcement of bottom, and the small diameter cylinder center is fixed with a mandrel through reinforcement; Be set with a disk clapper on the mandrel of described small diameter cylinder, the disk clapper is placed on the reinforcement of small diameter cylinder bottom, and the top card of small diameter cylinder is equipped with a valve block back-up ring, and the bottom of small diameter cylinder is manufactured with special-purpose exhalation passages; Be set with an annular clapper in the described large diameter cylinder, annular clapper is placed on the reinforcement of large diameter cylinder bottom, and it is coaxial state that disk clapper and annular clapper are installed the back.
The barrel bottom of the large diameter cylinder of described breathing circuit filter assembly body is manufactured with buckle and the arc card is protruding; Have positioning port on the outer rim at barrel top.
The present invention's beneficial effect compared with prior art is:
The filter assembly of the coaxial band exhalation passages of this breather valve adopts coaxial installation with inlet valve and outlet valve; The bottom of small diameter cylinder is manufactured with special-purpose exhalation passages; Shortened the distance of respiration cycle passage; Smooth and easy when having realized dust proof and gas defence face shield tidal air, volume is little, in light weight, face shield is worn comfortable, as to be difficult for landing purpose.And simple in structure, need not out a plurality of exhalation passages of system, the difficulty of processing when having reduced mould manufacturing and injection moulding has effectively improved the whole airtight isolated property of face shield.The outlet valve, the inlet valve disalignment that have solved existing face shield are installed, and outlet valve can not be exhaled over against mouth and produced the sense of feeling oppressed, and volume and weight is big, is prone to the problem of landing when wearing, and the face shield that is fit to all dust proof and gas defence places uses.
Description of drawings:
Fig. 1 is the main TV structure sketch map of the filter assembly of the coaxial band exhalation passages of a kind of breather valve;
Fig. 2 is the side-looking structural representation after the filter assembly of the coaxial band exhalation passages of a kind of breather valve removes the valve block back-up ring;
Fig. 3 is installed in the structural representation on the face shield for the filter assembly of the coaxial band exhalation passages of a kind of breather valve.
Among the figure: 1, breathing circuit filter assembly body, 2, annular clapper, 3, the disk clapper, 4, the valve block back-up ring, 5, buckle, 6, reinforcement, 7, positioning port, 8, the arc card is protruding, 9, mandrel, 10, exhalation passages, 11,0 type circle, 12, filter cotton.
The specific embodiment:
The filter assembly of the coaxial band exhalation passages of this breather valve is made up of breathing circuit filter assembly body 1, annular clapper 2, disk clapper 3 and valve block back-up ring 4; Breathing circuit filter assembly body 1 is that the cylinder of two coaxial small one and large one constitutes; The top of cylinder is the opening shape; Be manufactured with reinforcement 6 connections of 6, two big or small cylinders of reinforcement by the bottom on the bottom opening of cylinder, the small diameter cylinder center is fixed with a mandrel 9 through reinforcement 6.Be set with a disk clapper 3 on the mandrel 9 of described small diameter cylinder; Disk clapper 3 is placed on the reinforcement 6 of small diameter cylinder bottom; The top card of small diameter cylinder is equipped with a valve block back-up ring 4, and the bottom of small diameter cylinder is manufactured with special-purpose exhalation passages 10.Be set with an annular clapper 2 in the described large diameter cylinder, annular clapper 2 is placed on the reinforcement 6 of large diameter cylinder bottom, and it is coaxial state that disk clapper 3 is installed the placement back with annular clapper 2.
Described disk clapper 3 is unidirectional filtration valve block with annular clapper 2, and disk clapper 3 can only unidirectional exhalation air, can not suck air; Annular clapper 2 can only unidirectional suction air, the air of can not breathing out.The barrel bottom of the large diameter cylinder of described breathing circuit filter assembly body 1 is uniformly distributed with and is manufactured with eight buckles 5 and arc card protruding 8; Have positioning port 7 (referring to accompanying drawing 1～2) on the outer rim at barrel top.
The filter assembly of the coaxial band exhalation passages of this breather valve can be supporting with various dust proof and gas defence face shields; The volume of dust proof and gas defence face shield is reduced; Weight saving, and can shorten the distance of respiration cycle passage, the front of breathing circuit filter assembly can also be provided with the multi-filtering device as required.Accompanying drawing 3 is a kind of structure after the filter assembly of the coaxial band exhalation passages of this breather valve is installed.
The operation principle of the filter assembly of the coaxial band exhalation passages of this breather valve is (is example with accompanying drawing 3), through cingulum face shield is worn on the mouth and nose earlier, after the air of outside filters through filter cotton, again through in the annular clapper 2 suction oral cavities.The waste gas such as carbon dioxide that the circulation back produces are breathed out through disk clapper 3, discharge through exhalation passages 10 again, do not gang up in order to ensure the gas that sucks and breathe out, and have adopted 0 type circle 11 to isolate between aspirating unit and the expiration road.Because it is coaxial state that annular clapper 2 is installed the back with disk clapper 3, therefore disk clapper 3 makes that over against the mouth of human body the respiration cycle process shortens, and it is smooth and easy to have guaranteed that the user breathes, and does not feel oppressed, and wears comfortable.The present invention need not to open exhalation passages with inlet valve 1 and outlet valve 2 coaxial attachings more, and the airtight isolated property of face shield is greatly improved.Simultaneously, after exhalation passages reduced, respective accessory was just few, had effectively alleviated the overall weight of face shield, was fit to wear not landing for a long time, can not produce the painful sticky feeling that waits of folder, had improved service efficiency, had reduced manufacturing cost.
Claims (2)
1. the filter assembly of the coaxial band exhalation passages of breather valve; It is made up of breathing circuit filter assembly body (1), annular clapper (2), disk clapper (3) and valve block back-up ring (4); It is characterized in that: breathing circuit filter assembly body (1) is made up of the cylinder of two coaxial small one and large one; The top of cylinder is the opening shape; Be manufactured with reinforcement (6) on the bottom opening of cylinder, big or small cylinder is connected by the reinforcement (6) of bottom, and the cylinder center of minor diameter is fixed with a mandrel (9) through reinforcement (6); Be set with a disk clapper (3) on the mandrel of described small diameter cylinder (9); Disk clapper (3) is placed on the reinforcement (6) of small diameter cylinder bottom; The top card of small diameter cylinder is equipped with a valve block back-up ring (4); The bottom of small diameter cylinder is manufactured with special-purpose exhalation passages (10), adopts 0 type circle (11) to isolate between aspirating unit and the expiration road; Be set with an annular clapper (2) in the described large diameter cylinder, annular clapper (2) is placed on the reinforcement (6) of large diameter cylinder bottom, and it is coaxial state that disk clapper (3) and annular clapper (2) are installed the back.
2. the filter assembly of the coaxial band exhalation passages of a kind of breather valve according to claim 1 is characterized in that: the barrel bottom of the large diameter cylinder of described breathing circuit filter assembly body (1) is manufactured with buckle (5) and arc card protruding (8); Have positioning port (7) on the outer rim at barrel top.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110302660 CN102319491B (en) | 2011-10-09 | 2011-10-09 | Filter assembly coaxial with breather valve and provided with expiratory channel |
| PCT/CN2012/078939 WO2013053255A1 (en) | 2011-10-09 | 2012-07-20 | Filter assembly of coaxial breath valve integrated with expiratory channel |
| AU2012323672A AU2012323672B2 (en) | 2011-10-09 | 2012-07-20 | Filter assembly of coaxial breath valve integrated with expiratory channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110302660 CN102319491B (en) | 2011-10-09 | 2011-10-09 | Filter assembly coaxial with breather valve and provided with expiratory channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102319491A CN102319491A (en) | 2012-01-18 |
| CN102319491B true CN102319491B (en) | 2012-07-18 |
Family
ID=45447400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110302660 Active CN102319491B (en) | 2011-10-09 | 2011-10-09 | Filter assembly coaxial with breather valve and provided with expiratory channel |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102319491B (en) |
| AU (1) | AU2012323672B2 (en) |
| WO (1) | WO2013053255A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319491B (en) * | 2011-10-09 | 2012-07-18 | 荆州思创科技开发有限公司 | Filter assembly coaxial with breather valve and provided with expiratory channel |
| EP2805748B1 (en) | 2013-05-24 | 2018-09-26 | Drägerwerk AG & Co. KGaA | Respiration mask with emergency respiration valve |
| JP2017516546A (en) | 2014-05-26 | 2017-06-22 | イノスパークス ピーティーイー リミテッドＩｎｎｏｓｐａｒｋｓ Ｐｔｅ Ｌｔｄ | Breathing apparatus having a one-way valve for mounting an active ventilation system |
| CN107737424B (en) * | 2017-11-28 | 2023-06-27 | 北京化工大学 | Mask suitable for high concentration dust environment |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2312047Y (en) * | 1997-09-24 | 1999-03-31 | 杨万有 | Separation type emergency mask for preventing against chemical agent |
| CN2513603Y (en) * | 2002-01-04 | 2002-10-02 | 张自伟 | Lateral external respirator |
| CN2629755Y (en) * | 2002-03-18 | 2004-08-04 | 陈绍南 | Double antichemical semi-mask and filtering box thereof |
| CN2621065Y (en) * | 2003-06-17 | 2004-06-23 | 杨焕林 | Respirator with three-way pipe for inspiration, exhaustion and respiration |
| CN1327915C (en) * | 2004-10-29 | 2007-07-25 | 林勇德 | Nasal filtering blockage for human |
| CN2780251Y (en) * | 2005-09-09 | 2006-05-17 | 陈绍南 | Multipurpose single double box sound transmission biochemical-proof half mask |
| DE102007055241B4 (en) * | 2007-11-16 | 2009-10-29 | Msa Auer Gmbh | Respiratory half mask with a mask body |
| KR20100064396A (en) * | 2008-12-05 | 2010-06-15 | 박기수 | Mask |
| CN102319491B (en) * | 2011-10-09 | 2012-07-18 | 荆州思创科技开发有限公司 | Filter assembly coaxial with breather valve and provided with expiratory channel |
-
2011
- 2011-10-09 CN CN 201110302660 patent/CN102319491B/en active Active
-
2012
- 2012-07-20 AU AU2012323672A patent/AU2012323672B2/en not_active Ceased
- 2012-07-20 WO PCT/CN2012/078939 patent/WO2013053255A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN102319491A (en) | 2012-01-18 |
| WO2013053255A1 (en) | 2013-04-18 |
| AU2012323672A1 (en) | 2013-09-12 |
| AU2012323672B2 (en) | 2015-11-05 |
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| C14 | Grant of patent or utility model | ||
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