CN208975021U - A kind of fireman's special double-layer filtermask - Google Patents
A kind of fireman's special double-layer filtermask Download PDFInfo
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- CN208975021U CN208975021U CN201820998030.XU CN201820998030U CN208975021U CN 208975021 U CN208975021 U CN 208975021U CN 201820998030 U CN201820998030 U CN 201820998030U CN 208975021 U CN208975021 U CN 208975021U
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- filtermask
- mask
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model belongs to fire-fighting protector technical field, more particularly to a kind of fireman's special double-layer filtermask, the air suction valve of the suction hole entrance through varus when air-breathing is inwardly in communication with exterior space, it exports the pod formed in breathing space and leads to exhaling hole entrance, the outlet valve to turn up when the expiration hole exits are through exhaling is outward in communication with exterior space, the built-in primary filter layer being made of netted adsorption filter layer of the suction hole and the secondary filtration layer being made of the malicious device of runoff filter, the utility model solves the prior art and exists due to its unreasonable structure, it is flowed into mask so as to cause poison gas, in turn result in the problem of fireman is injured by poison gas, it is injured with fireman is avoided in rescue by poison gas, it ensure that the smooth of breathing, it effectively prevent the injury of toxic vapours and evil aerosol, filtering effect The higher advantageous effects of rate.
Description
Technical field
The utility model belongs to fire-fighting protector technical field more particularly to a kind of fireman's special double-layer filtering type gas defence face
Tool.
Background technique
Breathing mask is the extraordinary articles and individual soldier protection articles of fireman's rescue and relief work, is worn on the head, and people is protected
Respiratory apparatus, eyes and face, prevent the noxious materials such as poison gas, dust, bacterium, toxic and harmful gas or steam injure
People's protective equipment, breathing mask are widely used in petroleum, chemical industry, mine, metallurgy, military affairs, fire-fighting, rescue and relief work, health and epidemic prevention
With the fields such as science and technology environmental protection, machine-building, and can also play in the more serious city of haze, photochemical fog important
The effect of personal breathing system protection, breathing mask can be divided into tool and half mask comprehensively from moulding, and tool is divided into positive pressure again comprehensively
Formula and suction type, toxic gas are the major obstacles for influencing fireman's rescue at fire-fighting scene, he mainly passes through respiratory apparatus, eye
Eyeball and skin damage fire fighter, the prior art exist due to its unreasonable structure, flow into mask so as to cause poison gas, in turn
The problem of causing fireman to be injured by poison gas.
Utility model content
The utility model provides a kind of fireman's special double-layer filtermask, to solve to mention in above-mentioned background technique
The prior art is gone out to exist due to its unreasonable structure, has been flowed into mask so as to cause poison gas, in turn result in fireman by poison gas
The problem of injury.
The technical problem solved by the utility model is implemented by the following technical solutions: a kind of fireman's special double-layer mistake
Filter formula breathing mask, including mask, the mask include the cover internal layer being bonded with face, and the inner space of the mask passes through cover
Its exterior space is isolated in the breathing space formed between internal layer and mask shell, and the mask shell jaw portion forms suction hole, the face
Housing snout forms exhaling hole, the air suction valve of the suction hole entrance through varus when air-breathing inwardly in communication with exterior space,
It exports the pod formed in breathing space and leads to exhaling hole entrance, the expiration turned up when the expiration hole exits are through exhaling
Valve is outward in communication with exterior space, the built-in primary filter layer being made of netted adsorption filter layer of the suction hole and by diameter
Stream filters the secondary filtration layer of malicious device composition, communication built in the exhaling hole.
Further, interior when the air suction valve air-breathing to open, the external-open when outlet valve is exhaled.
Further, the air suction valve and outlet valve are respectively provided with reset spring, are answered at closing time by reset spring
Position power and exhale accordingly, suction double action.
Further, rubber closely sealed frame of the cover internal layer through its inner peripheral is sealed in mask shell.
Further, the closely sealed frame includes that the closely sealed frame of shroud rim, the closely sealed frame of eye window, the suction hole of mutual integration connection are close
Close frame, the closely sealed frame of exhaling hole.
Further, the adsorption filter layer includes that the activated carbon filter layer of filtering poisonous steam and absorption bulky grain solid-state are hanged
The high density net filtration stratum reticulare of floating object.
Further, the activated carbon filter layer is loaded with the active carbon of catalyst or chemical sorbent, and the active carbon is leaching
Stain active carbon or impregnated carbon or gas defence carbon or catalysis carbon.
Further, the high density net filtration stratum reticulare fiber glass filtering net group criss-cross by least one layer of grid type
At.
Further, it includes blast fence that the runoff, which filters malicious device, and the blast fence suction plane is connected to adsorption filtration
Laminar flow is appeared, and another side is located to enclose the one side for being connected to movable screen, and the another side of the movable screen is through interior Round Porous
Cylinder is connected to the one side of wool felt, and the another side of the wool felt is connected to the one side of silk floss paper, the silk floss through gas defence carbon-coating
The another side of paper is connected to the one side of particulate filter through outer perforated cylinder, and the another side of the particulate filter leads to pod.
Further, the particulate filter is used through dipping activity mistake under carbon physical absorption, chemisorption and catalytic action
Filter poison gas.
Advantageous effects:
1, this patent includes the cover internal layer being bonded with face using the mask, and the inner space of the mask passes through in cover
Its exterior space is isolated with the breathing space formed between mask shell for layer, and the mask shell jaw portion forms suction hole, the mask
Faucal nose forms exhaling hole, the air suction valve of the suction hole entrance through varus when air-breathing inwardly in communication with exterior space,
It exports the pod formed in breathing space and leads to exhaling hole entrance, the expiration turned up when the expiration hole exits are through exhaling is living
Door is outward in communication with exterior space, the built-in primary filter layer being made of netted adsorption filter layer of the suction hole and by runoff
Filter the secondary filtration layer of malicious device composition, communication built in the exhaling hole, due to after personnel wear a gas mask, tidal air
When road cyclic process is air-breathing, toxic gas becomes pure air after absorbing harmful substance by double medium filtration, living by air-breathing
Door enters in mask, and air-flow is led into personnel's respiratory tract through oronasal mask or water-resisting mask；When expiration, the gas of characteristics of contaminated respiratory droplets is passed through
Mask outlet valve is discharged into atmosphere, in use process, constantly repeats the above breath cycle process, until stop using, due to
Be formed using mask with human face periphery it is closely sealed, make the eyes of personnel, nose, mouth and face and surrounding toxic environment every
From, while making by absorption, absorption, catalytic action and the filtering of filter layer of adsorbent in canister, it is empty with the external world contaminates
Gas is purified, therefore the personnel of offer breathe by reasonable gas defence structure, effectively prevent poison gas to flow into face with pure air
In cover, avoids fireman and injured in rescue by poison gas.
2, interior when this patent is using the air suction valve air-breathing to open, the external-open when outlet valve is exhaled, due to using suction
It is opened in gas, so that the atmosphere of exterior space passes through air suction valve after filtering and enters in mask, using expiration external-open, characteristics of contaminated respiratory droplets
Gas be discharged into atmosphere through mask outlet valve, open a conjunction by the one of two corresponding valve, filtered gas protected
Human body is held in breathing space and sucks, upon exhalation, and can be by exhaust gas and effectively discharge of exhaling, therefore, by cleverly
Mechanism design, on the basis of effective gas defence, ensure that the smooth of breathing.
3, this patent is respectively provided with reset spring using the air suction valve and outlet valve, at closing time by reset spring
Reset force and exhale accordingly, suction double action, due to using reset spring the power that automatically resets, upon inhalation, exhale work
Door is due to opens outward, and density reduces in breathing space, and pressure reduction, atmosphere seals outlet valve, simultaneously as air suction valve to
It inside opens, the toxic gas of exterior space, after filtering, forms pure and fresh air in breathing space, ensure that the suction of fireman
Gas, upon exhalation, density subtracts greatly in breathing space, and pressure rises, and atmosphere opens outlet valve, while in reset spring and expiration
Under the double action of pressure, air suction valve is closed, due to exhaling, unlatching and closure of the air suction valve under double action, effectively
Ensure that exhale, the interlocking state of air suction valve.
4, it includes the activated carbon filter layer and absorption bulky grain of filtering poisonous steam that this patent, which uses the adsorption filter layer,
The high density net filtration stratum reticulare of solid suspension, since adsorbent layer is filtering poisonous steam, filter layer is filtering noxious gas
Colloidal sol, since toxic vapours are the basic poison gas of rescue site, mainly pass through respiratory apparatus, eyes and skin damage personnel,
What toxic vapours were constantly present, therefore, the protection for toxic vapours be it is basic, filter layer is to be specifically used to filtering noxious gas
Colloidal sol.The toxic smoke (solia particle) that is generated in production process, malicious mist (liquid particle), radioactive dust and containing bacterium, virus
Particle etc., referred to as harmful aerosol.Filter layer closes the filter process of harmful aerosol and the chemical property of aerosol particles
System is less, mainly related with its physical property, kinetic characteristic, therefore by the filter layer of setting primary filter, can effectively prevent
The only injury of toxic vapours and evil aerosol.
5, this patent is loaded with the active carbon of catalyst or chemical sorbent, the active carbon using the activated carbon filter layer
It is indulged for Immesion active carbon or impregnated carbon or gas defence carbon or catalysis carbon, the high density net filtration stratum reticulare by least one layer of grid type
Horizontal staggered fiber glass filtering net composition, due to the process of filter layer filtering aerosol.Currently used glass fiber filter
Layer is made of the criss-cross fiber mesh of many layers, when aerosol particles pass through, always has an opportunity to touch fiber and hindered
It stays.Occur in all manifold effects of this contact, mainly 4 kinds of interception effect, the inertia effect, diffusion effect and electrostatic effect etc.,
It is wherein playing a major role and be preceding 3 kinds of effects, the adsorbent layer of breathing mask, using being loaded with catalyst or chemisorption
The active carbon of agent.This active carbon is commonly referred to as Immesion active carbon or impregnated carbon, or is for gas defence carbon or catalysis carbon, active carbon
The gas defence performance on the basis of impregnated carbon, impregnated carbon depends greatly on the performance and quality of active carbon.In active carbon
On transitional pore and big hole surface, the metal oxides such as copper, silver, chromium or molybdenum, zinc are loaded with, here it is Immesion active carbons.These metals
The addition quantity of oxide, is affected to gas defence performance.In addition to adding these metal oxides, therefore, further increase anti-
Malicious performance and stability.
6, it includes blast fence that this patent, which filters malicious device using the runoff, and the blast fence suction plane is connected to absorption
Filter layer effluent face, another side is located to enclose the one side for being connected to movable screen, and the another side of the movable screen is through interior more
Hole cylinder is connected to the one side of wool felt, and the another side of the wool felt is connected to the one side of silk floss paper through gas defence carbon-coating, described
The another side of silk floss paper is connected to the one side of particulate filter through outer perforated cylinder, and the another side of the particulate filter leads to pod, by
Malicious device is filtered in direct-type and is generally shaft flow structure, and air guide tubular type canister passes through a corrugated rubber gas-guide tube and mask phase
Even, be adopted as radial-flow type structure, volume, weight ratio axial-flow type it is big, gas defence performance also enhances compared with axial-flow type.
7, this patent is used through dipping activity using the particulate filter in carbon physical absorption, chemisorption and catalytic action
Lower filtering poison gas, due to physisorption.So-called absorption refers to fluid molecule the phenomenon that the surface of solids thickens or agglomerates.
Physical absorption is the generation that attracted each other by the power between adsorbate and sorbent molecule, and being adsorbed molecule remains original chemistry
Property, heat of adsorption is lower, non-selectivity, and absorption and desorption rate are very fast, for example, active carbon is to sarin, chemisorption；Change
Learning absorption is by, with the attracting generation of the power of similar chemical chain, adsorbate is formed with adsorbent between adsorbate and sorbent molecule
Surface compound, heat of adsorption is higher, selective, usually irreversible.Impregnated carbon is improved pair by means of addition metal oxide
The gas defence ability of hardly possible absorption toxic agent.When impregnating carbon adsorption phosgene, hydrolysis can occur therewith for the moisture on carbon；Catalysis is made
With.Catalytic action refers to that certain difficulties are physically adsorbed the toxic vapours with chemisorption, is allowed to occur catalysis instead using catalyst
Answer, can significantly improve chemical reaction velocity, for example, copper and chromium oxide and be difficult to the cyanogen chloride adsorbed, arsenic hydride etc. and play water
Solution reaction.The catalysis reaction occurred in impregnated carbon, oxygen and water mainly in air are sent out with toxic agent under the effect of the catalyst
Raw reaction, by filtering poison gas under physical absorption, chemisorption and catalytic action, filter efficiency is higher.
8, this patent, should be according to variety classes and the toxic vapours of property, gas in rescue environment when using breathing mask
Body, the malicious device of harmful suitable filter of aerosol selection, improve the applicability of this breathing mask.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of fireman's special double-layer filtermask of the utility model；
Fig. 2 is a kind of adsorption filter layer structural representation of fireman's special double-layer filtermask of the utility model
Figure；
Fig. 3 is that a kind of runoff of fireman's special double-layer filtermask of the utility model filters malicious apparatus structure signal
Figure.
Specific embodiment
The utility model is described further below in conjunction with attached drawing:
In figure:
1- mask, 2- cover internal layer, 3- breathing space, 4- suction hole, 5- exhaling hole, 6- air suction valve, 7- pod, the face 8-
Housing, 9- outlet valve, 10- primary filter layer, 11- secondary filtration layer, 12- communication, 13- reset spring, 14- active carbon
Filter layer, 15- filtering meshes, 16- blast fence, 17- locating ring, 18- movable screen, perforated cylinder in 19-, 20- wool felt,
21- gas defence carbon-coating, 22- silk floss paper, the outer perforated cylinder of 23-, 24- particulate filter.
Embodiment:
The present embodiment: as shown in Figure 1, a kind of fireman's special double-layer filtermask, including mask 1, the face
Cover 1 include with the cover internal layer 2 that is bonded of face, the inner space of the mask 1 between cover internal layer 2 and mask shell 8 by forming
Its exterior space is isolated in breathing space 3, and the 8 jaw portion of mask shell forms suction hole 4, and 8 snout of mask shell, which is formed, exhales
Hole 5, the air suction valve 6 of 4 entrance of suction hole through varus when air-breathing inwardly in communication with exterior space, are exported through breathing space
The pods 7 formed in 3 lead to 5 entrance of exhaling hole, and the outlet valve 9 to turn up when the outlet of exhaling hole 5 is through exhaling is to foreign minister
It passes through exterior space, the built-in primary filter layer 10 being made of netted adsorption filter layer of the suction hole 4 and poison is filtered by runoff
The secondary filtration layer 11 of device composition, communication 12 built in the exhaling hole 5.
It is interior when 6 air-breathing of air suction valve to open, the external-open when outlet valve 9 is exhaled.
The air suction valve 6 and outlet valve 9 are respectively provided with reset spring 13, are answered at closing time by reset spring 13
Position power and exhale accordingly, suction double action.
Rubber closely sealed frame of the cover internal layer 2 through its inner peripheral is sealed in mask shell 8.
The closely sealed frame include the closely sealed frame of shroud rim of mutual integration connection, the closely sealed frame of eye window, the closely sealed frame of suction hole 4,
The closely sealed frame of exhaling hole 5.
As shown in Fig. 2, the adsorption filter layer includes the activated carbon filter layer 14 and absorption bulky grain of filtering poisonous steam
The high density net filtration stratum reticulare 15 of solid suspension.
The activated carbon filter layer 14 is loaded with the active carbon of catalyst or chemical sorbent, and the active carbon is dipping activity
Charcoal or impregnated carbon or gas defence carbon or catalysis carbon.
The high density net filtration stratum reticulare 15 is made of the criss-cross fiber glass filtering net of at least one layer of grid type.
As shown in figure 3, it includes blast fence 16 that the runoff, which filters malicious device, 16 suction plane of blast fence is connected to suction
Attached filter layer effluent face, the one sides that the located circle 17 of another side is connected to movable screen 18, the movable screen 18 it is another
Face is connected to the one side of wool felt 20 through interior perforated cylinder 19, and the another side of the wool felt 20 is connected to silk through gas defence carbon-coating 21
The one side of tissue paper 22, the another side of the silk floss paper 22 are connected to the one side of particulate filter 24, the filter cigarette through outer perforated cylinder 23
The another side of layer 24 leads to pod 7.
The particulate filter 24 filters poison using by dipping activity under carbon physical absorption, chemisorption and catalytic action
Gas.
Working principle:
This patent includes the cover internal layer being bonded with face by the mask, and the inner space of the mask passes through cover internal layer
Its exterior space is isolated in the breathing space formed between mask shell, and the mask shell jaw portion forms suction hole, the mask shell
Snout forms exhaling hole, and the air suction valve of the suction hole entrance through varus when air-breathing goes out inwardly in communication with exterior space
The pod that mouth is formed in breathing space leads to exhaling hole entrance, the outlet valve to turn up when the expiration hole exits are through exhaling
Outward in communication with exterior space, the built-in primary filter layer being made of netted adsorption filter layer of the suction hole and filtered by runoff
The secondary filtration layer of malicious device composition, communication built in the exhaling hole, due to after personnel wear a gas mask, breathing circuit
When cyclic process is air-breathing, toxic gas becomes pure air after absorbing harmful substance by double medium filtration, passes through air suction valve
Into in mask, air-flow is led into personnel's respiratory tract through oronasal mask or water-resisting mask；When expiration, the gas of characteristics of contaminated respiratory droplets is through face
Cover outlet valve is discharged into atmosphere, in use process, constantly repeats the above breath cycle process, until stopping using, due to being
It is formed using mask with human face periphery closely sealed, eyes, nose, mouth and the face of personnel is isolated with surrounding toxic environment,
Make simultaneously by absorption, absorption, catalytic action and the filtering of filter layer of adsorbent in canister, with by external world's contamination air into
Row purification, therefore the personnel of offer breathe by reasonable gas defence structure, effectively prevent poison gas to flow into mask with pure air,
Upon inhalation, outlet valve is due to opens outward, and density reduces in breathing space, and pressure reduction, atmosphere seals outlet valve, together
When, since air suction valve is inwardly opened, the toxic gas of exterior space forms pure and fresh air in breathing space after filtering,
It ensure that the air-breathing of fireman, upon exhalation, density subtracts greatly in breathing space, and pressure rises, and atmosphere opens outlet valve, simultaneously
Under the double action of reset spring and breath pressure, close air suction valve, the utility model solve the prior art exist by
It in its unreasonable structure, is flowed into mask so as to cause poison gas, in turn results in the problem of fireman is injured by poison gas, had and avoid
Fireman is injured in rescue by poison gas, ensure that the wound that is smooth, effectivelying prevent toxic vapours and evil aerosol of breathing
Evil, the higher advantageous effects of filter efficiency.
Using the technical solution of the utility model or those skilled in the art technical solutions of the utility model inspiration
Under, similar technical solution is designed, and reach above-mentioned technical effect, it is to fall into the protection scope of the utility model.
Claims (10)
1. a kind of fireman's special double-layer filtermask, which is characterized in that including mask, the mask includes and face
The cover internal layer of fitting, the inner space of the mask pass through the breathing space formed between cover internal layer and mask shell and are isolated outside it
Space, the mask shell jaw portion form suction hole, and the mask faucal nose forms exhaling hole, and the suction hole entrance is through air-breathing
When varus air suction valve inwardly in communication with exterior space, export the pod formed in breathing space and lead to exhaling hole
Mouthful, for the outlet valve to turn up when the expiration hole exits are through exhaling outward in communication with exterior space, the suction hole is built-in by net
The primary filter layer of shape adsorption filter layer composition and the secondary filtration layer that malicious device forms is filtered by runoff, built in the exhaling hole
Communication.
2. a kind of fireman's special double-layer filtermask according to claim 1, which is characterized in that the air-breathing
It is interior when valve air-breathing to open, the external-open when outlet valve is exhaled.
3. a kind of fireman's special double-layer filtermask according to claim 2, which is characterized in that the air-breathing
Valve and outlet valve are respectively provided with reset spring, at closing time by the reset force of reset spring and accordingly exhale, suction it is dual
Effect.
4. a kind of fireman's special double-layer filtermask according to claim 1, which is characterized in that in the cover
Rubber closely sealed frame of the layer through its inner peripheral is sealed in mask shell.
5. a kind of fireman's special double-layer filtermask according to claim 4, which is characterized in that described closely sealed
Frame includes the closely sealed frame of shroud rim, the closely sealed frame of eye window, the closely sealed frame of suction hole, the closely sealed frame of exhaling hole of mutual integration connection.
6. a kind of fireman's special double-layer filtermask according to claim 1, which is characterized in that the absorption
Filter layer includes the activated carbon filter layer of filtering poisonous steam and the high density net filtration stratum reticulare of absorption bulky grain solid suspension.
7. a kind of fireman's special double-layer filtermask according to claim 6, which is characterized in that the activity
Charcoal filter layer is loaded with the active carbon of catalyst or chemical sorbent, and the active carbon is Immesion active carbon or impregnated carbon or gas defence
Carbon or catalysis carbon.
8. a kind of fireman's special double-layer filtermask according to claim 6, which is characterized in that described highly dense
Degree net filtration stratum reticulare is made of the criss-cross fiber glass filtering net of at least one layer of grid type.
9. a kind of fireman's special double-layer filtermask according to claim 1, which is characterized in that the runoff
Filtering malicious device includes blast fence, and the blast fence suction plane is connected to adsorption filter layer effluent face, and another side is located
Circle is connected to the one side of movable screen, and the another side of the movable screen is connected to the one side of wool felt through interior perforated cylinder, institute
The another side for stating wool felt is connected to the one side of silk floss paper through gas defence carbon-coating, and the another side of the silk floss paper connects through outer perforated cylinder
It is connected to the one side of particulate filter, the another side of the particulate filter leads to pod.
10. a kind of fireman's special double-layer filtermask according to claim 9, which is characterized in that the filter
Smoke stratification, which is used, filters poison gas under carbon physical absorption, chemisorption and catalytic action by impregnating activity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820998030.XU CN208975021U (en) | 2018-06-27 | 2018-06-27 | A kind of fireman's special double-layer filtermask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820998030.XU CN208975021U (en) | 2018-06-27 | 2018-06-27 | A kind of fireman's special double-layer filtermask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208975021U true CN208975021U (en) | 2019-06-14 |
Family
ID=66779400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820998030.XU Expired - Fee Related CN208975021U (en) | 2018-06-27 | 2018-06-27 | A kind of fireman's special double-layer filtermask |
Country Status (1)
| Country | Link |
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| CN (1) | CN208975021U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927149A (en) * | 2019-11-28 | 2020-03-27 | 中冶建筑研究总院有限公司 | Device and method for testing protection time of civil air defense special catalyst DMMP |
| CN113019320A (en) * | 2021-02-26 | 2021-06-25 | 大同新成欣荣新材料科技有限公司 | Preparation process of carrier activated carbon for civil air defense engineering |
| CN115697520A (en) * | 2020-04-06 | 2023-02-03 | 伊莱克福有限公司 | Filter materials and personal protective equipment based on them |
-
2018
- 2018-06-27 CN CN201820998030.XU patent/CN208975021U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927149A (en) * | 2019-11-28 | 2020-03-27 | 中冶建筑研究总院有限公司 | Device and method for testing protection time of civil air defense special catalyst DMMP |
| CN115697520A (en) * | 2020-04-06 | 2023-02-03 | 伊莱克福有限公司 | Filter materials and personal protective equipment based on them |
| CN113019320A (en) * | 2021-02-26 | 2021-06-25 | 大同新成欣荣新材料科技有限公司 | Preparation process of carrier activated carbon for civil air defense engineering |
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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: 20190614 Termination date: 20210627 |