CN114009880B - Filtering type protective mask with self-wetting water absorption function - Google Patents

Filtering type protective mask with self-wetting water absorption function Download PDF

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Publication number
CN114009880B
CN114009880B CN202111314424.1A CN202111314424A CN114009880B CN 114009880 B CN114009880 B CN 114009880B CN 202111314424 A CN202111314424 A CN 202111314424A CN 114009880 B CN114009880 B CN 114009880B
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China
Prior art keywords
breathing
plate
filter
groove
hole
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Active
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CN202111314424.1A
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Chinese (zh)
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CN114009880A (en
Inventor
黄皓宇
王岚
张烨
王龙耀
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Changzhou University
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Changzhou University
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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/20—Pockets; Making or setting-in pockets
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/02—Layered materials
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/10—Impermeable to liquids, e.g. waterproof; Liquid-repellent
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/12—Hygroscopic; Water retaining
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/18—Elastic
    • 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
    • A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2500/00—Materials for garments
    • A41D2500/30—Non-woven

Abstract

The application discloses a filter type protective mask with a self-wetting water absorption function, which comprises a mask assembly, wherein the mask assembly comprises an outer cover body, a filter layer and a breathing bag, the filter layer is arranged in the outer cover body, and the breathing bag is arranged on the outer cover body; and the filter piece is arranged on the side surface of the outer cover body. The application adopts the hydrophilic active membrane layer with micro-aperture and large specific surface area as the mask filter layer, thereby realizing the self-wetting water absorption function of the protective mask and enabling the water-soluble/polluted gas absorption to be efficiently absorbed.

Description

Filtering type protective mask with self-wetting water absorption function
Technical Field
The application relates to the field of protective masks, in particular to a filter type protective mask with a self-wetting water absorption function.
Background
The filter mask has long application in daily life, has the effects of bacteria filtration, dust resistance, gas protection, deodorization and the like, can effectively block harmful substances such as microorganisms, particulate matters and the like in the air, and ensures the health of human bodies.
The adsorption material such as activated carbon has a large number of micropores in the internal structure, so that the adsorption material has a large specific surface area, and the adsorption material such as activated carbon can adsorb a large number of toxic gas molecules therein without escaping. Therefore, in order to improve the protection effect on toxic gases, the protective mask adopts a bed layer to accumulate active carbon particles or non-woven fabrics to mix with active carbon powder or be used as a filtering material, and the toxic gases are removed through adsorption without being inhaled by people. However, the treatment and installation requirements of the adsorption materials such as activated carbon are very high, for example, coarse particles can cause inter-particle gaps, and toxic gas can penetrate through the gaps into the respiratory tract and is not adsorbed; too fine particles can lead to increased respiratory resistance and the risk of leakage of activated carbon powder into dust pollutants.
In the working environment, when the air contains high water-solubility gases such as hydrogen chloride, ammonia and the like, the common mask and the active carbon mask are difficult to remove through filtration and adsorption. The water absorption can effectively remove the hydrogen chloride, ammonia and other pollutant gases in the air, but the mask is required to be wetted before use. It is particularly notable that excessively wetted filter material will increase air lock, resulting in poor breathing, and non-uniformly wetted filter material will fail due to channeling or drift of the contaminated air stream caused by the dry zone channels. Under the circumstance, the mask with the water wetting characteristic is necessary to develop for respiratory protection under the emergency escape condition of the dangerous environment.
Disclosure of Invention
This section is intended to summarize some aspects of embodiments of the application and to briefly introduce some preferred embodiments, which may be simplified or omitted in this section, as well as the description abstract and the title of the application, to avoid obscuring the objects of this section, description abstract and the title of the application, which is not intended to limit the scope of this application.
The present application has been made in view of the above and/or problems occurring in the prior art.
Therefore, the technical problem to be solved by the application is that when the air contains high water-solubility gases such as hydrogen chloride, ammonia and the like, the common mask and the active carbon mask are difficult to remove through filtration and adsorption.
In order to solve the technical problems, the application provides the following technical scheme: the filter type protective mask with the self-wetting water absorption function comprises a mask assembly, wherein the mask assembly comprises an outer mask body, a filter layer and a breathing bag, the filter layer is arranged in the outer mask body, and the breathing bag is arranged on the outer mask body; and the filter piece is arranged on the side surface of the outer cover body.
As a preferable embodiment of the filtering type protective mask with a self-wetting water absorbing function of the present application, wherein: the outer cover body comprises a filtering opening, an outer cover inner cavity and a breathing opening, wherein the filtering opening is arranged on the side face of the outer cover body, the breathing opening is arranged on the other side face of the outer cover body, the outer cover inner cavity is arranged in the outer cover body, and the outer cover inner cavity is respectively communicated with the filtering opening and the breathing opening.
As a preferable embodiment of the filtering type protective mask with a self-wetting water absorbing function of the present application, wherein: the outer cover body further comprises a rotary connecting groove and rotary columns, the rotary connecting groove is formed in the side face of the outer cover body, the rotary columns are arranged in the rotary connecting groove, and the rotary connecting groove is symmetrically provided with two rotary connecting grooves along the central line of the outer cover body.
As a preferable embodiment of the filtering type protective mask with a self-wetting water absorbing function of the present application, wherein: the breathing bag comprises a first breathing plate, a second breathing plate and a limiting block, wherein the first breathing plate and the second breathing plate are arranged inside the breathing bag, the limiting block is matched with the first breathing plate, and the lower end of the breathing bag is connected with the breathing port.
As a preferable embodiment of the filtering type protective mask with a self-wetting water absorbing function of the present application, wherein: the first breathing plate comprises a breathing plate rotating hole, a first breathing groove and a first limiting hole, wherein the breathing plate rotating hole is formed in the upper end of the first breathing plate, the first breathing groove is formed in the side face of the first breathing plate, the first limiting hole is formed in the first breathing groove, the breathing plate rotating hole is matched with the rotating column, and the limiting block is inserted into the first limiting hole in a matched mode with a spring.
As a preferable embodiment of the filtering type protective mask with a self-wetting water absorbing function of the present application, wherein: the second breathing plate comprises a second rotating hole, a second sliding plate and a second connecting hole, wherein the second rotating hole is formed in the second breathing plate, the second sliding plate is arranged at one end of the second breathing plate, the second connecting hole is formed in the second sliding plate, the second rotating hole is matched with the rotating column, and the second sliding plate is inserted in the first breathing groove.
As a preferable embodiment of the filtering type protective mask with a self-wetting water absorbing function of the present application, wherein: the filter element comprises a filter column, a breathing wheel and a secondary filter wheel, wherein the breathing wheel is arranged in the filter column, and the secondary filter wheel is arranged at the lower end of the breathing wheel.
As a preferable embodiment of the filtering type protective mask with a self-wetting water absorbing function of the present application, wherein: the filter column comprises a filter hole and a pushing groove, wherein the filter hole is formed in the filter column, the pushing groove is formed in the circumferential surface of the filter column, the filter hole is communicated with the pushing groove, and a plurality of pushing grooves are formed in the pushing groove.
As a preferable embodiment of the filtering type protective mask with a self-wetting water absorbing function of the present application, wherein: the secondary filter wheel comprises a secondary filter hole and a filter placing groove, and the secondary filter hole and the filter placing groove are arranged on the secondary filter wheel.
As a preferable embodiment of the filtering type protective mask with a self-wetting water absorbing function of the present application, wherein: the respiration wheel comprises a respiration groove hole, a respiration rotation groove, a first rotation plate, a second rotation plate and a third rotation plate, wherein the respiration groove hole is formed in the upper end of the respiration wheel, the respiration rotation groove is formed in the circumferential surface of the respiration wheel, the first rotation plate, the second rotation plate and the third rotation plate are arranged in the respiration groove hole, the first rotation plate is hinged to the second rotation plate, and the second rotation plate is hinged to the third rotation plate.
The application has the beneficial effects that: the application adopts the hydrophilic active membrane layer with micro-aperture and large specific surface area as the mask filter layer, thereby realizing the self-wetting water absorption function of the protective mask and enabling the water-soluble/polluted gas absorption to be efficiently absorbed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic structural diagram of a filtering mask assembly with a self-wetting water absorbing function according to an embodiment of the present application;
fig. 2 is a schematic view of a breathing bag in a filter-type protective mask with a self-wetting water absorption function according to an embodiment of the present application;
fig. 3 is a schematic view of a first breathing plate structure of a filtering mask with a self-wetting water absorbing function according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a filter assembly in a filter-type protective mask with a self-wetting water absorbing function according to an embodiment of the present application;
fig. 5 is a schematic view of a respiratory wheel structure in a filter-type protective mask with a self-wetting water absorption function according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a respiratory wheel part assembly in a filtering mask with a self-wetting water absorption function according to an embodiment of the present application.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
In the following detailed description of the embodiments of the present application, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration only, and in which is shown by way of illustration only, and in which the scope of the application is not limited for ease of illustration. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Further still, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 3, the embodiment provides a filter-type protective mask with a self-wetting water absorption function, which comprises a mask assembly 100, wherein the mask assembly 100 comprises an outer mask body 101, a filter layer 102 and a breathing bag 103, the filter layer 102 is arranged in the outer mask body 101, and the breathing bag 103 is arranged on the outer mask body 101; and a filter 200, wherein the filter 200 is disposed on the side of the housing 101.
The non-skin-friendly layer of the outer cover body 101 is made of water-repellent non-woven fabric which is formed by conducting waterproof treatment on PP or PET non-woven fabric, spreading of spray can be effectively prevented, large-particle dust in air is isolated, the outer cover body 101 and the skin contact layer are made of non-woven fabric and other skin-friendly materials, waterproof treatment is conducted on the side close to the filter layer 102, and liquid film liquid absorbing pollutants is prevented from being transferred to an oral cavity.
The filter layer 102 is a hydrophilic active microporous membrane layer prepared by entanglement of active material particles, captures water vapor and small liquid drops in exhaled wet gas under the capillary action, uniformly spreads the water vapor and the small liquid drops into a liquid membrane on the microporous surface of the active microporous membrane layer, and takes the liquid membrane as a main pollutant removal layer, thereby having the water absorption function on pollutants such as hydrogen chloride, titanium tetrachloride, sulfur trioxide, ammonia and the like and achieving effective protection on human bodies.
For different use environments and purposes, different active microporous membrane layer materials can be selected to achieve the optimal gas purification effect, wherein the active microporous membrane layer materials comprise hydrophilic particle entanglement materials such as active carbon, attapulgite, diatomite and the like, and graphene materials, MOF materials, COF materials and the like obtained by modifying and modifying the materials. In the application process, the active surface material of the active microporous membrane material can be a single component or can be a mixture of several materials.
The thickness of the active microporous membrane layer is 5-0.1 mm, preferably 2-0.5 mm, and the filtering area of the mask can be increased by adopting a pleated skirt-shaped folding mode in specific application.
The average pore diameter of the breathable micropores of the active microporous membrane layer is 10 nm-50 mu m, preferably 500 nm-10 mu m, at room temperature by a pure water bubble pressure method; the average diameter hole of the trapping micropore average pore diameter material of the active micropore membrane layer material is 50 nm-500 nm, preferably 100 nm-200 nm; the specific surface area of the active microporous membrane layer material is more than 100 m 2/g.
The trapping microporous material of the active microporous membrane layer should be a hydrophilic material and the contact angle should be <40 ֩, preferably <10 ֩.
The outer cover body 101 comprises a filtering opening 101a, an outer cover inner cavity 101b and a breathing opening 101c, wherein the filtering opening 101a is arranged on the side surface of the outer cover body 101 which is not close to the skin, the breathing opening 101c is arranged on the other side surface of the outer cover body 101 which is close to the skin, the outer cover inner cavity 101b is arranged in the outer cover body 101, the filtering layer 102 is arranged in the outer cover inner cavity 101b, and the outer cover inner cavity 101b is respectively communicated with the filtering opening 101a and the breathing opening 101 c.
The housing 101 further includes a rotary connection groove 101d and a rotary column 101e, the rotary connection groove 101d is disposed on the side surface of the housing 101, the rotary column 101e is disposed in the rotary connection groove 101d, and the rotary connection groove 101d is symmetrically disposed with two parts along the center line of the housing 101.
The breathing bag 103 includes first breathing plate 103a, second breathing plate 103b and stopper 103c, and first breathing plate 103a and second breathing plate 103b set up in breathing bag 103 inside, and stopper 103c cooperates with first breathing plate 103a, breathing bag 103 lower extreme and breathing mouth 101c fixed connection.
The breathing bag 103 is made of spun-bonded non-woven fabrics, and the part of the breathing bag 103, which is not contacted with the skin, is subjected to waterproof treatment, so that liquid film liquid absorbing pollutants is prevented from flowing outwards.
Preferably, the first breathing plate 103a, the second breathing plate 103b and the limiting block 103c may be made of elastic plastics.
The first breathing plate 103a comprises a breathing plate rotating hole 103a-1, a first breathing groove 103a-2 and a first limiting hole 103a-3, the breathing plate rotating hole 103a-1 is arranged at the upper end of the first breathing plate 103a, the first breathing groove 103a-2 is arranged on the side face of the first breathing plate 103a, the first limiting hole 103a-3 is arranged on the first breathing groove 103a-2, the breathing plate rotating hole 103a-1 is in hinged fit with the rotating column 101e, a limiting block 103c is fixedly connected with a spring and inserted into the first limiting hole 103a-3, and the spring is fixedly connected with the inside of the first limiting hole 103 a-3.
The second breathing plate 103b includes a second rotating hole 103b-1, a second sliding plate 103b-2 and a second connecting hole 103b-3, the second rotating hole 103b-1 is disposed on the second breathing plate 103b, the second sliding plate 103b-2 is disposed at one end of the second breathing plate 103b, the second connecting hole 103b-3 is disposed on the second sliding plate 103b-2, the second rotating hole 103b-1 is hinged to the rotating column 101e, and the second sliding plate 103b-2 is inserted in the first breathing groove 103 a-2.
The limiting blocks 103c are provided with at least four, one end of each limiting block 103c is provided with an inclined plane, the second connecting holes 103b-3 are provided with two limiting holes 103a-3, referring to fig. 3, the two side faces of each first breathing groove 103a-2 are respectively provided with two first limiting holes 103a-3 and are symmetrical along the central line of each first breathing groove 103a-2, so that the first breathing plate 103a and the second breathing plate 103b can be pushed according to the needs of a user, the second sliding plate 103b-2 extrudes the inclined planes of the limiting blocks 103c, the upper limiting blocks 103c and the lower limiting blocks 103c move in the first limiting holes 103a-3, and when the second sliding plate 103b-2 moves to a certain distance in the first breathing grooves 103a-2, the upper limiting blocks 103c and the lower limiting blocks 103c are inserted into the second connecting holes 103b-3 to be fixed, and the opening size of the breathing bag 103 can be enlarged.
When the mask is used, the two ear hooks of the mask are hung on ears, the bending degree of the mask and the opening size of the breathing bag 103 are adjusted according to the needs of a wearer, and in the wearing process, vapor in exhaled air is condensed on the surfaces of the micro-holes of the activated carbon and the fiber filaments under the capillary action to form a liquid film, so that harmful substances in the air are absorbed, and the effective protection of a human body is achieved.
The application adopts the hydrophilic active membrane layer with micro-aperture and large specific surface area as the mask filter layer, realizes the self-wetting water absorption function of the protective mask, and ensures that water-soluble/absorption pollution gases such as hydrogen chloride, titanium tetrachloride, ammonia and the like can be efficiently absorbed; during the use, the mask filter disc can realize self-cleaning to a certain extent along with the occurrence of the breathing process, and the liquid film can realize updating, repairing and self-cleaning in the expiration and inspiration processes.
Example 2
Referring to fig. 1 to 6, in a second embodiment of the present application, based on the previous embodiment, the embodiment provides a filtering type protective mask implementation with a self-wetting water absorption function, which specifically includes:
the filter 200 comprises a filter column 201, a respiration wheel 202 and a secondary filter wheel 203, wherein the respiration wheel 202 is arranged in the filter column 201, and the secondary filter wheel 203 is arranged at the lower end of the respiration wheel 202.
The filter column 201 includes a filter hole 201a and a pushing groove 201b, the filter hole 201a is disposed on the filter column 201, the pushing groove 201b is disposed on the circumferential surface of the filter column 201, the filter hole 201a is communicated with the pushing groove 201b, and the pushing groove 201b is provided with a plurality of holes.
At least two pushing grooves 201b are arranged and are symmetrically arranged along the radial direction of the filtering column 201, and the bottoms of the filtering holes 201a are made of breathable materials.
The secondary filter wheel 203 includes a secondary filter hole 203a and a filter placement groove 203b, and the secondary filter hole 203a and the filter placement groove 203b are provided on the secondary filter wheel 203.
Two secondary filter holes 203a and filter placement grooves 203b are provided, respectively, and the secondary filter holes 203a and the filter placement grooves 203b are alternately provided.
The filter placement groove 203b is made of a breathable material, and a material for adsorbing harmful gases is placed in the filter placement groove 203 b.
The respiration wheel 202 includes a respiration slot 202a, a respiration rotation slot 202b, a first rotation plate 202c, a second rotation plate 202d and a third rotation plate 202e, the respiration slot 202a is disposed at the upper end of the respiration wheel 202, the respiration rotation slot 202b is disposed on the circumferential surface of the respiration wheel 202, the first rotation plate 202c, the second rotation plate 202d and the third rotation plate 202e are disposed in the respiration slot 202a, the first rotation plate 202c is hinged with the second rotation plate 202d, and the second rotation plate 202d is hinged with the third rotation plate 202e.
The breathing rotation groove 202b is provided with two breathing rotation grooves which penetrate through the side wall of the breathing wheel 202, the pushing groove 201b corresponds to the breathing rotation groove 202b in position, the breathing groove hole 202a is provided with four breathing groove holes 202a which are separated by two separation plates in the breathing wheel 202, and the breathing groove holes 202a provided with the first rotation plate 202c, the second rotation plate 202d and the third rotation plate 202e are communicated with the breathing rotation groove 202 b.
The first rotating plate 202c is provided with a first rotating hole 202c-1, the second rotating plate 202d is provided with a second rotating hole 202d-1 and a second rotating groove 202d-2, the third rotating plate 202e is provided with a third rotating post 202e-1 and a third rotating groove 202e-2, the second rotating plate 202d is placed in the third rotating groove 202e-2, the third rotating post 202e-1 is inserted into the second rotating hole 202d-1, the first rotating plate 202c is placed in the second rotating groove 202d-2, and the third rotating post 202e-1 is inserted into the first rotating hole 202 c-1.
Push plates are arranged on the first rotating plate 202c, the second rotating plate 202d and the third rotating plate 202e, and are inserted into the breathing rotating groove 202b and the pushing groove 201b so as to facilitate pushing of the first rotating plate 202c, the second rotating plate 202d and the third rotating plate 202e.
The filter 200 is composed of a respiration wheel 202, a secondary filtration wheel 203, the respiration wheel 202 and a filtration column 201 which are fixedly connected, wherein when not in use, the first rotation plate 202c, the second rotation plate 202d and the third rotation plate 202e are in an unfolding state in the respiration slot 202a and just cover the filtration placing groove 203b, the filtration placing groove 203b is blocked, and the contact between the material absorbing harmful gas in the filtration placing groove 203b and air is reduced, and when in use, the material is selected according to requirements.
When the mask is used, two ear hooks of the mask are hung on ears, the bending degree of the mask and the opening size of the breathing bag (103) are adjusted according to the requirement of a wearer, and in the wearing process, water vapor in exhaled air is condensed on the surfaces of active carbon micropores and fiber filaments under the capillary action to form a liquid film, so that harmful substances in the air are absorbed, and the effective protection of a human body is achieved; if the harmful gas is too much in the environment, the pushing plate can be pushed manually to selectively open the openings of the first rotating plate (202 c), the second rotating plate (202 d) and the third rotating plate (202 e) which are covered on the filtering placing groove (203 b) to filter the gas, and then the filtering layer (102) is used for carrying out secondary filtering, so that the harm of the harmful gas to the human body is reduced.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the application, or those not associated with practicing the application).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.

Claims (6)

1. A filtration formula protective facial mask with from moist water absorption function, its characterized in that: comprising the steps of (a) a step of,
the mask assembly (100) comprises an outer cover body (101), a filter layer (102) and a breathing bag (103), wherein the filter layer (102) is arranged inside the outer cover body (101), and the breathing bag (103) is arranged on the outer cover body (101); the method comprises the steps of,
a filter (200), wherein the filter (200) is arranged on the side surface of the outer cover (101);
the outer cover body (101) comprises a filtering port (101 a), an outer cover inner cavity (101 b) and a breathing port (101 c), wherein the filtering port (101 a) is arranged on the side surface of the outer cover body (101), the breathing port (101 c) is arranged on the other side surface of the outer cover body (101), the outer cover inner cavity (101 b) is arranged in the outer cover body (101), and the outer cover inner cavity (101 b) is respectively communicated with the filtering port (101 a) and the breathing port (101 c);
the outer cover body (101) further comprises a rotary connecting groove (101 d) and a rotary column (101 e), wherein the rotary connecting groove (101 d) is arranged on the side face of the outer cover body (101), the rotary column (101 e) is arranged in the rotary connecting groove (101 d), and the two rotary connecting grooves (101 d) are symmetrically arranged along the central line of the outer cover body (101);
the breathing bag (103) comprises a first breathing plate (103 a), a second breathing plate (103 b) and a limiting block (103 c), the first breathing plate (103 a) and the second breathing plate (103 b) are arranged inside the breathing bag (103), the limiting block (103 c) is matched with the first breathing plate (103 a), and the lower end of the breathing bag (103) is connected with the breathing port (101 c);
the first breathing plate (103 a) comprises a breathing plate rotating hole (103 a-1), a first breathing groove (103 a-2) and a first limiting hole (103 a-3), the breathing plate rotating hole (103 a-1) is formed in the upper end of the first breathing plate (103 a), the first breathing groove (103 a-2) is formed in the side face of the first breathing plate (103 a), the first limiting hole (103 a-3) is formed in the first breathing groove (103 a-2), the breathing plate rotating hole (103 a-1) is matched with the rotating column (101 e), and the limiting block (103 c) is matched with a spring to be inserted in the first limiting hole (103 a-3).
2. The filtering face guard with self-wetting water absorbing function of claim 1, wherein: the second breathing plate (103 b) comprises a second rotating hole (103 b-1), a second sliding plate (103 b-2) and a second connecting hole (103 b-3), the second rotating hole (103 b-1) is formed in the second breathing plate (103 b), the second sliding plate (103 b-2) is arranged at one end of the second breathing plate (103 b), the second connecting hole (103 b-3) is formed in the second sliding plate (103 b-2), the second rotating hole (103 b-1) is matched with the rotating column (101 e), and the second sliding plate (103 b-2) is inserted in the first breathing groove (103 a-2).
3. The filtering face guard with self-wetting water absorbing function of claim 2, wherein: the filter (200) comprises a filter column (201), a breathing wheel (202) and a secondary filter wheel (203), wherein the breathing wheel (202) is arranged in the filter column (201), and the secondary filter wheel (203) is arranged at the lower end of the breathing wheel (202).
4. A filtering face guard with self-wetting water absorbing function as claimed in claim 3, wherein: the filter column (201) comprises a filter hole (201 a) and a pushing groove (201 b), wherein the filter hole (201 a) is formed in the filter column (201), the pushing groove (201 b) is formed in the circumferential surface of the filter column (201), the filter hole (201 a) is communicated with the pushing groove (201 b), and a plurality of pushing grooves (201 b) are formed.
5. The filtering face guard with self-wetting water absorbing feature of claim 4, wherein: the secondary filter wheel (203) comprises a secondary filter hole (203 a) and a filter placing groove (203 b), and the secondary filter hole (203 a) and the filter placing groove (203 b) are arranged on the secondary filter wheel (203).
6. The filtering face guard with self-wetting water absorbing feature of claim 5, wherein: the respiration wheel (202) comprises a respiration groove hole (202 a), a respiration rotation groove (202 b), a first rotation plate (202 c), a second rotation plate (202 d) and a third rotation plate (202 e), wherein the respiration groove hole (202 a) is formed in the upper end of the respiration wheel (202), the respiration rotation groove (202 b) is formed in the circumferential surface of the respiration wheel (202), the first rotation plate (202 c), the second rotation plate (202 d) and the third rotation plate (202 e) are arranged in the respiration groove hole (202 a), the first rotation plate (202 c) is hinged to the second rotation plate (202 d), and the second rotation plate (202 d) is hinged to the third rotation plate (202 e).
CN202111314424.1A 2021-11-08 2021-11-08 Filtering type protective mask with self-wetting water absorption function Active CN114009880B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105246553A (en) * 2013-06-26 2016-01-13 小中富雄 Mask
CN207370141U (en) * 2017-10-08 2018-05-18 姚凡 It is a kind of new to lead to the sensible moisture-retention mask of nose with aromatic function
CN111296944A (en) * 2020-04-05 2020-06-19 吕思远 Breathing-assisting mask
CN213307568U (en) * 2020-06-11 2021-06-01 杭州邓斯实业有限公司 Mask with automatic sterilization function
CN213756787U (en) * 2020-11-19 2021-07-23 建德市朝美日化有限公司 Medical mask

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105246553A (en) * 2013-06-26 2016-01-13 小中富雄 Mask
CN207370141U (en) * 2017-10-08 2018-05-18 姚凡 It is a kind of new to lead to the sensible moisture-retention mask of nose with aromatic function
CN111296944A (en) * 2020-04-05 2020-06-19 吕思远 Breathing-assisting mask
CN213307568U (en) * 2020-06-11 2021-06-01 杭州邓斯实业有限公司 Mask with automatic sterilization function
CN213756787U (en) * 2020-11-19 2021-07-23 建德市朝美日化有限公司 Medical mask

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