CN208065587U - A kind of flexible demifacet type chemical experiment gas mask - Google Patents

A kind of flexible demifacet type chemical experiment gas mask Download PDF

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Publication number
CN208065587U
CN208065587U CN201721524013.4U CN201721524013U CN208065587U CN 208065587 U CN208065587 U CN 208065587U CN 201721524013 U CN201721524013 U CN 201721524013U CN 208065587 U CN208065587 U CN 208065587U
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China
Prior art keywords
filter
demifacet
flexible
gas mask
chemical experiment
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CN201721524013.4U
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Chinese (zh)
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张成如
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Beijing Oumeizhong Science and Technology Research Institute
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Beijing Oumeizhong Science and Technology Research Institute
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Abstract

The utility model discloses a kind of flexible demifacet type chemical experiment gas masks comprising cover body is arranged in the fixed filter unit of the cover body front end, the filter pulp stacker being removably mounted on the fixed filter unit, the filter cartridge that is removably mounted on the filter pulp stacker.Flexible demifacet type chemical experiment gas mask provided by the utility model, its demountable filter is made of filter pulp stacker and filter cartridge, it can be according to the chemical article involved by different chemical experiments, install any of filter pulp stacker or filter cartridge additional on fixed filter unit, or first install filter pulp stacker additional on fixed filter unit, again filter cartridge is installed additional on filter pulp stacker, it targetedly filters and adsorbs to be played for different chemical articles, improve flexibility and the specific aim of gas mask.

Description

A kind of flexible demifacet type chemical experiment gas mask
Technical field
The utility model is related to a kind of personal protection equipments, and in particular to a kind of flexible demifacet type chemical experiment gas defence face Cover.
Background technology
Laboratory, especially chemical laboratory, chemical species are various, and pharmacological property is complicated, most of to have certain poison Property.What staff came into contacts with daily is exactly these drugs, chemical reagent etc., some Nature comparisons are steady in these chemical substances The gas come out when determining, but doing certain experiments may be toxic and harmful gas, some gases are exactly to pass through respiration Human body is damaged, some toxicity is very big, such as:Cyanide etc. is all severe toxicity, and sucking will make one fatal, permanent worker on a small quantity Make under this environment, staff to be needed to carry out self-protection, and the use of breathing mask solves this to a certain extent One problem.Breathing mask provides the respiratory apparatus, eyes and skin of face of staff effective as personal protection product Protection, suitable for endangering the place of respiratory system but not the health of life threatening immediately, protective range includes dust, weight cigarette, mist Drop, poison gas, poison vapor and those invisible small substances.
But with social development, though the gas mask of various chemical experiments is regenerated constantly updating, often skill The innovation emphasis of art has all been placed on the resistance to compression of enhancing mask, fire resistance, and never solves part in actual use Eyes have the scientific research personnel of myopia to wear realistic problem inconvenient when mask, and due to wearing glasses in mask, the influence that can haze regards Line will certainly hinder to influence to appoint in this way so many people can only select not wear glasses and directly wear mask when using mask The gas mask filter layer setting of the normally and efficiently progress of business, existing chemical experiment is less, can only filter a kind of property Gas, chemical laboratory, chemical species are various, and pharmacological property complexity can volatilize the gas of a variety of properties, existing chemical experiment Gas mask just first it is unable to do what one wishes, due to most chemical experiment gas mask be in view of comfort level side Face can feel sick when wearing or think that gas mask is off size suitable, and the gas mask of existing chemical experiment Usage time too long, the active carbon layer and wet gauze of the inside can aging, and activated carbon can go bad, the efficiency of filtering by discount, It even scraps and can not reuse, therefore scientific research personnel can be threatened by toxic gas.
The Chinese invention patent of Publication No. CN106581880A, it discloses a kind of gas mask of chemical experiment, Including demountable filter, fixed filter unit and escape pipe, metal is installed on front side of the demountable filter Net is provided with active carbon layer on the right side of metal mesh, is installed with wet gauze on the right side of the active carbon layer, is provided in wet gauze Screw thread, the fixed filter unit alkaline filter layer, is installed with partition board on the right side of alkaline filter layer, is arranged on the right side of partition board There is acid filter layer, is installed with active carbon net on the right side of the acidity filter layer, silica gel shield is provided on the right side of active carbon net Pad, the escape pipe are internally provided with check valves.Although the gas mask of this chemical experiment can absorb or filtration experiment Dust, volatilization gas, alkaline gas and the acid mist of middle generation, still, this gas mask lack enough flexibilities and are directed to Property, the chemical article involved by different chemical experiments is not protected targetedly.
Utility model content
The purpose of this utility model is to provide it is a kind of can according to the chemical article involved by different chemical experiments into The gas mask that row targetedly protects.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of flexible demifacet type chemical experiment gas mask, including:
Cover body;
Fixed filter unit is arranged in the cover body front end;
Filter pulp stacker is removably mounted on the fixed filter unit, is set in the filter pulp stacker It is equipped with sulfur dioxide filter cotton, ammonia filter cotton and organic steam peculiar smell filter cotton;
Filter cartridge is removably mounted on the filter pulp stacker, is disposed in the filter cartridge Grain object filter cotton, active carbon layer and wet gauze, the wet gauze is close to the end that the filter cartridge is connected with the filter pulp stacker Portion;
In the fixed filter unit alkali is disposed with from one end far from the cover body to one end close to the cover body Property filter layer, partition board, acid filter layer, active carbon net, HEPA filter element slices.
Preferably, being connected by a snap between the filter pulp stacker and the fixed filter unit or being connected by screw thread It connects.
Preferably, being connected by a snap or being connected through a screw thread between the filter cartridge and the filter pulp stacker.
Preferably, inside one end of the filter pulp stacker is the sulfur dioxide filter cotton, the other end has to be described Machine steam peculiar smell filter cotton is the ammonia filter cotton between the sulfur dioxide filter cotton and organic steam peculiar smell filter cotton.
Preferably, the substance in the alkaline filter layer is anhydrous calcium oxide.
Preferably, the substance in the acidity filter layer is silicic acid.
Preferably, offering multiple apertures on the partition board, the extending direction of the aperture is identical as airflow direction.
Preferably, the duct of the aperture is funnel-form.
Preferably, the silicate particle diameter in the acidity filter layer is more than the diameter of aperture on the partition board.
Flexible demifacet type chemical experiment gas mask provided by the utility model, demountable filter is by filter pulp Stacker and filter cartridge composition, can be according to the chemical article involved by different chemical experiments, on fixed filter unit It installs any of filter pulp stacker or filter cartridge additional, or first installs filter pulp stacker additional on fixed filter unit, then filtering Filter cartridge is installed additional on cotton stacker, is targetedly filtered and is adsorbed to be played for different chemical articles, improves anti- The flexibility of malicious mask and specific aim.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only described in the utility model Some embodiments, for those of ordinary skill in the art, other drawings may also be obtained based on these drawings.
Fig. 1 is the side view for the flexible demifacet type chemical experiment gas mask that the utility model embodiment provides;
Fig. 2 is the flexible demifacet type chemical experiment gas mask partial sectional view that the utility model embodiment provides.
Reference sign:
1, cover body;2, fixed filter unit;21, alkaline filter layer;22, partition board;23, acid filter layer;24, activated carbon Net;25, HEPA filter element slices;3, filter pulp stacker;31, sulfur dioxide filter cotton;32, ammonia filter cotton;33, organic steam peculiar smell Filter cotton;4, filter cartridge;41, particulate matter filter cotton;42, active carbon layer;43, wet gauze.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with attached drawing pair The utility model is further detailed.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that process, method, article or terminal device including a series of elements include not only those Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or end The intrinsic element of end equipment.In the absence of more restrictions, being limited by sentence " including ... " or " including ... " Element, it is not excluded that there is also other elements in process, method, article or the terminal device including the element.This Outside, herein, " being more than ", " being less than ", " being more than " etc. are interpreted as not including this number;" more than ", " following ", " within " etc. understandings It includes this number to be.
As depicted in figs. 1 and 2, a kind of flexible demifacet type chemical experiment gas mask, including cover body 1, fixed filtering dress Set 2, filter pulp stacker 3 and filter cartridge 4.Wherein, cover body 1 and the shape of face of face lower half portion are similar, when in order to wear, cover body 1 is fitted in face lower half portion and is close to nose and chin.Fixed filter unit 2 is arranged in the front end of cover body 1, works as gas defence When mask is worn, fixed filter unit 2 is towards face snout.In the fixed filter unit 2 extremely from one end far from cover body 1 It is disposed with alkaline filter layer 21, partition board 22, acid filter layer 23, active carbon net 24, HEPA filters close to one end of the cover body 1 Chip 25.Substance in alkaline filter layer 21 is preferably anhydrous calcium oxide.Substance in acid filter layer 23 is preferably silicic acid.Every Multiple apertures are offered on plate 22, the extending direction of aperture is identical as airflow direction, and the duct of aperture is funnel-form.Acidity filtering Silicate particle diameter in layer 23 is more than the diameter of aperture on partition board 22, is flowed into alkaline filter layer 21 and makes to prevent silicate particle Acid-forming base neutralizes so that alkaline filter layer 21 fails.
The mode that filter pulp stacker 3 is connected by a snap or is connected through a screw thread is mounted on fixed filter unit 2, to Facilitate the dismounting between filter pulp stacker 3 and fixed filter unit 2, the junction of filter pulp stacker 3 and fixed filter unit 2 Take seal approach.It is different that sulfur dioxide filter cotton 31, ammonia filter cotton 32 and organic steam are provided in the filter pulp stacker 3 Taste filter cotton 33.Inside one end of filter pulp stacker 3 is sulfur dioxide filter cotton 31 in the present embodiment, and the other end is organic steaming Vapour peculiar smell filter cotton 33 is ammonia filter cotton 32 between the sulfur dioxide filter cotton 31 and organic steam peculiar smell filter cotton 33.It removes Using outside said sequence, the arrangement of sulfur dioxide filter cotton 31, ammonia filter cotton 32 and organic steam peculiar smell filter cotton 33 is suitable Sequence can also rearrange.
The mode that filter cartridge 4 is connected by a snap or is connected through a screw thread is on filter pulp stacker 3, to facilitate filtering The junction of dismounting between box 4 and filter pulp stacker 3, filter cartridge 4 and filter pulp stacker 3 takes seal approach.The filtering Particulate matter filter cotton 41, active carbon layer 42 and wet gauze 43 are disposed in box 4, the wet gauze 43 is close to the filter cartridge 4 The end being connected with the filter pulp stacker 3, as shown in Fig. 2, the filter cartridge 4 is equipped with one end of wet gauze 43 and filter pulp is accepted Seat 3 connects.
Above-mentioned gas mask is worn, when air-breathing, gas is successively after particulate matter filter cotton 41 and active carbon layer 42 Grain can be filtered, and using wet gauze 43, water-soluble gas will be filtered;Pass through sulfur dioxide filter cotton 31, ammonia successively again It, can be by sulfur dioxide, ammonia and the organic steam peculiar smell mistake in gas after gas filter cotton 32 and organic steam peculiar smell filter cotton 33 It filters;Then, it is filtered by alkaline filter layer 21, sour gas can be removed, acid filter layer 23 can remove alkaline gas, activity Charcoal net 24 can stop the particulate matter for coming from alkaline filter layer 21 and acid filter layer 23, last HEPA (High Efficiency Particulate Air) filter element slice 25 filters out tiny particles content so that and gas is sucked by human-body safety.
The flexible demifacet type chemical experiment gas mask of the present embodiment, demountable filter is by filter pulp stacker 3 It forms, can be installed additional on fixed filter unit 2 according to the chemical article involved by different chemical experiments with filter cartridge 4 Any of filter pulp stacker 3 or filter cartridge 4, or first install filter pulp stacker 3 additional on fixed filter unit 2, then filtering It installs filter cartridge 4 on cotton stacker 3 additional, targetedly filters and adsorb to be played for different chemical articles, improve The flexibility of gas mask and specific aim.
Above certain exemplary embodiments that the utility model is only described by way of explanation, undoubtedly, for Those skilled in the art can be with a variety of different without departing from the spirit and scope of the utility model Mode is modified described embodiment.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as Limitation to the utility model claims protection domain.

Claims (9)

1. a kind of flexible demifacet type chemical experiment gas mask, including cover body and the fixed filtering dress in the cover body front end is set It sets, which is characterized in that further include:
Filter pulp stacker is removably mounted on the fixed filter unit, is provided in the filter pulp stacker Sulfur dioxide filter cotton, ammonia filter cotton and organic steam peculiar smell filter cotton;
Filter cartridge is removably mounted on the filter pulp stacker, particulate matter is disposed in the filter cartridge Filter cotton, active carbon layer and wet gauze, the wet gauze is close to the end that the filter cartridge is connected with the filter pulp stacker;
In the fixed filter unit alkaline mistake is disposed with from one end far from the cover body to one end close to the cover body Filtering layer, partition board, acid filter layer, active carbon net, HEPA filter element slices.
2. flexible demifacet type chemical experiment gas mask according to claim 1, which is characterized in that the filter pulp is accepted It is connected by a snap or is connected through a screw thread between seat and the fixed filter unit.
3. flexible demifacet type chemical experiment gas mask according to claim 1, which is characterized in that the filter cartridge with It is connected by a snap or is connected through a screw thread between the filter pulp stacker.
4. flexible demifacet type chemical experiment gas mask according to claim 1, which is characterized in that the filter pulp is accepted Inside one end of seat is the sulfur dioxide filter cotton, and the other end is the organic steam peculiar smell filter cotton, the sulfur dioxide mistake It is the ammonia filter cotton between filter pulp and organic steam peculiar smell filter cotton.
5. flexible demifacet type chemical experiment gas mask according to claim 1, which is characterized in that the alkaline filter Substance in layer is anhydrous calcium oxide.
6. flexible demifacet type chemical experiment gas mask according to claim 5, which is characterized in that the acid filtering Substance in layer is silicic acid.
7. flexible demifacet type chemical experiment gas mask according to claim 6, which is characterized in that opened on the partition board Equipped with multiple apertures, the extending direction of the aperture is identical as airflow direction.
8. flexible demifacet type chemical experiment gas mask according to claim 7, which is characterized in that the hole of the aperture Road is funnel-form.
9. flexible demifacet type chemical experiment gas mask according to claim 8, which is characterized in that the acid filtering Silicate particle diameter in layer is more than the diameter of aperture on the partition board.
CN201721524013.4U 2017-11-15 2017-11-15 A kind of flexible demifacet type chemical experiment gas mask Active CN208065587U (en)

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CN201721524013.4U CN208065587U (en) 2017-11-15 2017-11-15 A kind of flexible demifacet type chemical experiment gas mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721524013.4U CN208065587U (en) 2017-11-15 2017-11-15 A kind of flexible demifacet type chemical experiment gas mask

Publications (1)

Publication Number Publication Date
CN208065587U true CN208065587U (en) 2018-11-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107899146A (en) * 2017-11-15 2018-04-13 北京欧美中科学技术研究院 A kind of flexible demifacet type chemical experiment gas mask
CN111522269A (en) * 2020-04-21 2020-08-11 腾讯科技(深圳)有限公司 Experiment monitoring method and related device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107899146A (en) * 2017-11-15 2018-04-13 北京欧美中科学技术研究院 A kind of flexible demifacet type chemical experiment gas mask
CN111522269A (en) * 2020-04-21 2020-08-11 腾讯科技(深圳)有限公司 Experiment monitoring method and related device

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