CN111802727A - Infectious disease anti-suffocating mask device for department of respiration - Google Patents
Infectious disease anti-suffocating mask device for department of respiration Download PDFInfo
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- CN111802727A CN111802727A CN202010666958.XA CN202010666958A CN111802727A CN 111802727 A CN111802727 A CN 111802727A CN 202010666958 A CN202010666958 A CN 202010666958A CN 111802727 A CN111802727 A CN 111802727A
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- air cavity
- air
- way valve
- mask
- mask body
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 19
- 208000035473 Communicable disease Diseases 0.000 title claims abstract description 16
- 208000015181 infectious disease Diseases 0.000 title claims abstract description 14
- 230000007704 transition Effects 0.000 claims abstract description 11
- 230000002265 prevention Effects 0.000 claims abstract description 4
- 239000011324 bead Substances 0.000 claims description 16
- 239000004745 nonwoven fabric Substances 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 239000011358 absorbing material Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims description 2
- 230000000241 respiratory effect Effects 0.000 claims 7
- 230000000694 effects Effects 0.000 abstract description 9
- 208000024891 symptom Diseases 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 11
- 239000002912 waste gas Substances 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 206010003497 Asphyxia Diseases 0.000 description 3
- 206010006322 Breath holding Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000006806 disease prevention Effects 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 231100000516 lung damage Toxicity 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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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
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/002—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment
- A41D13/0025—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment by means of forced air circulation
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model provides a department of respiration infectious disease prevents breathing out face guard device, relate to medical equipment technical field, including airtight gauze mask body, the front end of gauze mask body is equipped with integrated into one piece's transition air cavity, and air cavity A, the both sides at the front portion of transition air cavity and/or the rear portion of air cavity A still are connected with air cavity B, the front end of air cavity A and the outside end of air cavity B all are equipped with removable filter disc, still be equipped with first one-way valve on the inner wall surface of air cavity A, first one-way valve is located between the filter disc of air cavity A and the medial extremity of air cavity B; the surface of the inner wall of the air cavity B is also provided with a second one-way air valve which is positioned between the outer side end and the inner side end of the air cavity B; one of the first one-way valve or the second one-way valve is used for limiting the gas to flow out of the mask body, and the other one is used for limiting the gas to flow into the mask body. The invention can effectively relieve the suffocating symptom of a wearer, is provided with the replaceable filter disc and the air bag capable of being adjusted automatically, and has stronger auxiliary effect on front-line epidemic prevention personnel.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a breath-holding prevention mask device for infectious diseases in the department of respiration.
Background
Except that keeping apart at home, the gauze mask becomes very lacking as traditional disease prevention device, and at present, the gauze mask that has the effect of preventing in advance that is approved by the public includes medical disposable gauze mask, medical surgery gauze mask, medical N95 gauze mask, medical KN95 gauze mask etc. and the material of these gauze masks all comprises waterproof layer, filter layer, close skin layer mostly, though can play certain disease prevention effect, still exists following defect:
1. when the mask is worn, the breathing difficulty is caused due to the limited space in the cavity of the mask, and the discomfort of the lung and even the lung damage can be caused by long-time wearing, so that the common mask needs to be worn for 2 to 4 hours and taken down, and the mask cannot be worn to move violently
2. The breath holding is caused because the breathing space of the existing mask is narrow and poor in air permeability, and the waste gas exhaled by a human body is accumulated in the mask and slowly exchanged with the external air, so that the oxygen quantity required by the respiration of the human body is greatly reduced; due to the defects of the prior art, the breathing and the inspiration share one mask inner cavity, and the requirement of gas diversion and exchange cannot be met in a narrow space, so that the expired carbon dioxide is breathed into the lungs again, and extreme discomfort is caused for a long time;
3. because the air breathed out by a person contains a large amount of moisture, the existing mask is only limited by the waterproof performance of the inner layer skin-friendly layer and can be wetted quickly, the wetted moisture enters a filter layer which is usually electrostatic melt-blown cloth, and the filter layer can be rapidly failed due to the moisture, so that the protection effect is influenced;
4. in fact, the masks worn by many people are repeatedly used for many times, the form significance is greater than the actual significance, the protection effect is very little, the production efficiency of the masks is improved, the cost is saved, and the requirements can be met to become difficult points to be solved urgently.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a breathing department infectious disease anti-suffocating mask device, which can be repeatedly used for a long time by arranging a replaceable filter disc, divides the inner cavity of the traditional single mask into an air cavity A and an air cavity B, enables exhaled waste gas and inhaled fresh air to be shunted, is provided with a one-way air valve to be matched with breathing for use, and can intercept moisture in the exhaled air through the one-way air valve to avoid the failure of the filter disc.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an anti-suffocation mask device for infectious diseases in the department of respiration comprises an airtight mask body, wherein an integrally formed transitional air cavity and an air cavity A connected with the front end of the transitional air cavity are arranged in the middle of the front end of the mask body, air cavities B are connected to the front part of the transitional air cavity and/or the two sides of the rear part of the air cavity A, replaceable filter discs are arranged at the front end of the air cavity A and the outer side end of the air cavity B, a first one-way air valve is further arranged on the surface of the inner wall of the air cavity A and located between the filter disc of the air cavity A and the inner side end of the air cavity B; the surface of the inner wall of the air cavity B is also provided with a second one-way air valve which is positioned between the outer side end and the inner side end of the air cavity B; one of the first one-way valve or the second one-way valve is used for limiting the gas to flow out of the mask body, and the other one of the first one-way valve or the second one-way valve is used for limiting the gas to flow into the mask body.
Preferably, the first one-way valve is used for limiting the gas to flow into the mask body, and comprises a fixed plate A fixedly connected to the upper end of the inner wall surface of the air cavity A, a movable plate A hinged to the lower end of the fixed plate A through a hinge shaft A, and a limiting plate A fixedly connected to the outer end face of the fixed plate A, the lower end of the limiting plate A extends downwards and abuts against the outer end face of the movable plate A when the outer end face of the movable plate A and the outer end face of the fixed plate A are located on the same plane, and the shape and size of the fixed plate A and the movable plate A are matched with the air cavity A; the one-way valve of second be used for injecing gaseous this external flow of gauze mask, and the one-way valve of second shape structure and mounting means is the same with first one-way valve, including fixed plate B, articulated shaft B, fly leaf B, limiting plate B, the one-way valve of second only lie in with the difference of first one-way valve, limiting plate B fixed connection in fixed plate B's medial surface.
Preferably, the filter disc comprises a first filter disc arranged in the air cavity A and a second filter disc arranged in the air cavity B, and the shape, structure and installation mode of the first filter disc and the second filter disc are the same.
Preferably, the edge of the first filter element is provided with a rubber ring for extrusion sealing, a filter component is fixedly connected inside the rubber ring, the filter component comprises fixing nets arranged at two ends, and a waterproof layer, a medical mask filter layer and a medical non-woven fabric layer are sequentially arranged between the fixing nets at the two ends from outside to inside; the inner wall surface of the air cavity A is fixedly connected with an annular groove, an annular bulge is arranged on the inner end face of the rubber ring, the annular bulge can be sealed with the annular groove in an extrusion mode, an internal thread is further arranged on the inner wall surface of the air cavity A on the outer side of the annular groove, a fixing ring A used for fixing the rubber ring in an extrusion mode is connected to the position of the internal thread in a threaded mode, the fixing ring A comprises an annular top and a convex ring integrally formed at the inner side end of the annular top, and the outer wall surface of the convex ring is connected with the outer end of the air cavity A through the internal thread.
Preferably, a liquid collecting groove with an arc-shaped cross section is further arranged at the bottom of the inner side wall of the air cavity B between the second one-way valve and the inner side end of the air cavity B, and replaceable water absorbing materials are arranged in the liquid collecting groove.
Preferably, the water absorption material is aseptic absorbent cotton, aseptic absorbent cotton outward appearance cladding has the non-woven fabrics, the bottom of non-woven fabrics and the tank bottom of collecting tank are equipped with the magic of mutually supporting and paste primary and secondary knot.
Preferably, a first air inlet unit is formed at the inner side of a first one-way valve in the air cavity A, and a second air inlet unit is formed in the air cavity A and positioned between the first one-way valve and the first filter disc; a first air outlet unit is formed inside the second one-way valve and in the air cavity B, and a second air outlet unit is formed between the second one-way valve and the second filter disc; the lower part of the air cavity A and/or the transition air cavity is also connected with an air bag, the air bag is communicated with the interior of the first air inlet unit through an air inlet pipe, a one-way valve A which limits the flow of air to the air bag only is arranged in the air inlet pipe, the air bag is communicated with the interior of the second air outlet unit through an air outlet pipe, and a one-way valve B which limits the flow of air to the second air outlet unit only is arranged at an opening of the air outlet pipe, which is positioned on the side wall of the second air outlet unit.
Preferably, the mask body is made of airtight fabric or medical silica gel material; encircle the internal surface edge of gauze mask body and be equipped with first elasticity bead, second elasticity bead, third elasticity bead from outside to inside in proper order, first elasticity bead and second elasticity bead between form first groove of inhaling, form the second between second elasticity bead and third elasticity bead and inhale the groove.
Preferably, the outer surface of the second one-way valve is plated with a heat-conducting metal film.
Preferably, the mask body is tied and fixed with the head of the wearer through a connecting part.
The breath holding prevention mask device for infectious diseases in the department of respiration has the following beneficial effects:
1. the filter can be used for a long time by replacing the filter, so that the cost of the mask is greatly reduced, and particularly, the filter can be produced on a large scale on an automatic machine through a die, so that the production capacity can be greatly improved and the consumption of the mask is reduced due to simple process;
2. as shown in fig. 1 to 6, when a wearer inhales, the first one-way valve is opened, external fresh air enters through the air cavity a7, when the wearer exhales, the first one-way valve is closed, the second one-way valve is opened, the air is exhausted through the air cavity B3, when the wearer inhales again, the second one-way valve is closed, and the first one-way valve is opened; the exhaled air and the inhaled air are divided, the exhaled waste gas is intercepted outside the second one-way valve during inhalation, the first one-way valve is closed during exhalation, the second one-way valve is opened, and the waste gas is prevented from being gathered in the air cavity A7, so that the defects of gas mixing and unsmooth breathing caused by the fact that the waste gas exhaled by a wearer is accumulated in the mask body in the prior art are overcome;
3. due to the blocking and flow guiding effect of the second one-way valve on the exhaled air flow, water vapor in the exhaled air is easy to condense or hang through the second one-way valve and drops into the liquid collecting tank 3-5; particularly, the outer surface of the second one-way valve is plated with the heat-conducting metal film, so that the effect of blocking moisture is more obvious; the water is fully absorbed in the sterile absorbent cotton, and the sterile absorbent cotton can be replaced in time, so that the mask body is prevented from generating bacteria and peculiar smell; more importantly, the filter disc is protected from being soaked by moisture, and the premature failure of the filter disc is prevented;
4. the air bag 8 can play an active adjusting role, when a wearer needs the air bag, the air exchange in the air cavity A7 can be realized by squeezing the air bag 8, so that the wearer can be ensured to breathe the external fresh air, specifically, when the air bag 8 is squeezed, the air in the air bag 8 is discharged outside through the second air outlet units 3-7, due to the blocking effect of the second one-way valve, the air cannot enter the inlet cover body 1, the hands are loosened, the air bag 8 rebounds, the one-way valve A is opened, the air in the air cavity A7 enters the air bag 8, negative pressure is formed in the air cavity A7, the external air is guided to enter the air cavity A7 through the filter disc A5, the repeated squeezing can exhaust the air stored in the air cavity A7, so that the wearer can be ensured to breathe the external air, and the suffocation symptom of the wearer is further relieved; through the arrangement, the mask body 1 solves the problem that waste gas and outside air in the mask body 1 are not mixed clearly in the prior art, has an active adjusting function, and is better in use experience of a wearer;
5. the inner side of the mask body 1 is provided with a first elastic rib 1-1, a second elastic rib 1-2, a third elastic rib 1-3, a first suction groove 1-4 and a second suction groove 1-5, after the mask body is bound and fixed with the head of a wearer through a connecting part 11, the first elastic rib 1-1, the second elastic rib 1-2 and the third elastic rib 1-3 can form 3 barriers, and the first suction groove 1-4 and the second suction groove 1-5 firmly adsorb the mask body 1 on the face to prevent droplet infection.
Drawings
FIG. 1: the invention is a front view structure schematic diagram;
FIG. 2: a schematic side view of one embodiment of the present invention;
FIG. 3: the invention B-B1 is a schematic sectional structure;
FIG. 4: a schematic side view of another embodiment of the present invention;
FIG. 5: the invention has a schematic sectional structure at C-C1;
FIG. 6: the invention A is a schematic diagram of a local enlarged structure;
FIG. 7: the back view structure schematic diagram of the mask body of the invention;
1: mask body, 2: transition air cavity, 3: air chamber B, 4: fixing ring A, 5: first filter sheet, 6: bridge clip, 7: air cavity a, 8: an air bag, 9: outlet duct, 10: check valve B, 11: connecting member, 12: air inlet pipe, 1-1: first elastic rib, 1-2: second elastomeric bead, 1-3: third elastomeric bead, 1-4: first suction groove, 1-5: second suction groove, 3-1: movable plate B, 3-2: fixing plate B, 3-3: limiting plate B, 3-4: second filter, 3-5: a liquid collecting tank, 3-6: first air outlet unit, 3-7: a second air outlet unit, 3-8: gas outlet, 3-9: fixing ring B, 4-1: convex ring, 4-2: annular top, 5-1: filter element, 5-2: rubber ring, 5-3: annular projection, 7-1: fixing plate a, 7-2: movable plate A, 7-3: hinge axis a, 7-4: limiting plate A, 7-5: first air intake unit, 7-6: second air intake unit, 7-7: annular groove, 7-8: an internal thread.
Detailed Description
In the following, embodiments of the present invention are described in detail in a stepwise manner, which is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, the present invention is not to be construed as being limited thereto.
In one embodiment, as shown in fig. 1 and 2, a breathing department infectious disease anti-suffocating mask device comprises an airtight mask body 1, wherein an integrally formed transitional air cavity 2 and an air cavity a7 connected with the front end of the transitional air cavity 2 are arranged in the middle of the front end of the mask body 1, an air cavity B3 is further connected to the front part of the transitional air cavity 2 or two sides of the rear part of the air cavity a7, replaceable filters are arranged at the front end of the air cavity a7 and the outer side end of the air cavity B3, a first one-way air valve is further arranged on the inner wall surface of the air cavity a7, and the first one-way air valve is positioned between the filter of the air cavity a7 and the inner side end of the air cavity B3; the inner wall surface of the air cavity B3 is also provided with a second one-way valve which is positioned between the outer side end and the inner side end of the air cavity B3; one of the first one-way valve or the second one-way valve is used for limiting the gas to flow out of the mask body 1, and the other one of the first one-way valve or the second one-way valve is used for limiting the gas to flow into the mask body 1.
Unlike the previous embodiment, in a further embodiment, air cavity B3 is connected to both sides of the front of transition air cavity 2 and the rear of air cavity a 7.
In a further embodiment, as shown in fig. 6, the first one-way damper is used for limiting the gas to flow into the mask body 1, and comprises a fixed plate a7-1 fixedly connected to the upper end of the inner wall surface of the air cavity a7, a movable plate a7-2 hinged to the lower end of the fixed plate a7-1 through a hinge shaft a7-3, and a limit plate a7-4 fixedly connected to the outer end surface of the fixed plate a7-1, wherein the lower end of the limit plate a7-4 extends downwards and abuts against the outer end surface of the movable plate a7-2 when the outer end surface of the movable plate a7-2 and the outer end surface of the fixed plate a7-1 are located on the same plane, and the fixed plate a7-1 and the movable plate a7-2 are matched with the air cavity a7 in shape and size; the second one-way valve is used for limiting the gas to flow out of the mask body 1, the shape structure and the installation mode of the second one-way valve are the same as those of the first one-way valve, and as shown in fig. 3, the second one-way valve comprises a fixing plate B3-2, a hinge shaft B, a movable plate B3-1 and a limiting plate B3-3, and the second one-way valve is different from the first one-way valve only in that the limiting plate B3-3 is fixedly connected to the inner side end face of the fixing plate B3-2.
In a further embodiment, as shown in fig. 1, 2, 3 and 4, the filter includes a first filter 5 disposed in air chamber a7 and a second filter 3-4 disposed in air chamber B3, wherein the first filter 5 and the second filter 3-4 have the same shape, structure and installation manner.
In a further embodiment, as shown in fig. 6, a rubber ring 5-2 for extrusion sealing is arranged at the edge of the first filter sheet 5, a filter element 5-1 is fixedly connected inside the rubber ring, the filter element 5-1 comprises fixing nets arranged at two ends, and a waterproof layer, a medical mask filter layer and a medical non-woven fabric layer (the fixing net is not shown in the drawing, and is understood as a net structure capable of restraining the waterproof layer, the medical mask filter layer and the medical non-woven fabric layer inside, and can be made of a metal material or a pvc material, and the restrained waterproof layer, the medical mask filter layer and the medical non-woven fabric layer are prevented from deforming with breathing, so as to prolong the service life) are sequentially arranged between the fixing nets at two ends from outside to inside; the inner wall surface of the air cavity A7 is fixedly connected with an annular groove 7-7, the inner end surface of the rubber ring 5-2 is provided with an annular protrusion 5-3, the annular protrusion 5-3 can be sealed with the annular groove 7-7 in a squeezing mode, the inner wall surface of the air cavity A7 at the outer side of the annular groove 7-7 is further provided with an internal thread 7-8, the internal thread 7-8 is in threaded connection with a fixing ring A4 used for squeezing and fixing the rubber ring 5-2, the fixing ring A4 comprises an annular top 4-2 and a convex ring 4-1 integrally formed at the inner side end of the annular top 4-2, and the outer wall surface of the convex ring 4-1 is connected with the outer end of the air cavity A7 through the internal thread 7-8.
In a further embodiment, as shown in fig. 2 and 3, a liquid collecting groove 3-5 with an arc-shaped section is further arranged at the bottom of the inner side wall of the air cavity B3 between the second one-way air valve and the inner side end of the air cavity B3, and replaceable water absorbing materials are arranged in the liquid collecting groove 3-5.
In a further embodiment, the water absorbing material is sterile absorbent cotton, the outer surface of the sterile absorbent cotton is coated with non-woven fabric, and the bottoms of the non-woven fabric and the bottoms of the liquid collecting tanks 3-5 are provided with magic tape female and male buttons which are matched with each other.
In a further embodiment, as shown in fig. 4 and 5, a first air inlet unit 7-5 is formed inside the first one-way valve in the air chamber a7, and a second air inlet unit 7-6 is formed in the air chamber a7 and between the first one-way valve and the first filter element 5; a first air outlet unit 3-6 is formed in the air cavity B3 at the inner side of the second one-way valve, and a second air outlet unit 3-7 is formed between the second one-way valve and the second filter disc 3-4; the lower part of the air cavity A7 or the transition air cavity 2 is also connected with an air bag 8, the air bag 8 is communicated with the inside of the first air inlet unit 7-5 through an air inlet pipe 12, a one-way valve A which only limits the flow of air to the air bag 8 is arranged in the air inlet pipe 12, the air bag 8 is communicated with the inside of the second air outlet unit 3-7 through an air outlet pipe 9, and a one-way valve B10 which only limits the flow of air to the inside of the second air outlet unit 3-7 is arranged at the opening of the side wall of the second air outlet unit 3-7 of the air outlet pipe 9.
In a further embodiment, unlike the previous embodiment, the air pockets A7 and the lower portion of the transition air pocket 2 are connected with air bags 8.
In a further embodiment, as shown in fig. 7, the mask body 1 is made of an air-impermeable fabric or a medical silica gel material; the first elastic rib 1-1, the second elastic rib 1-2 and the third elastic rib 1-3 are sequentially arranged on the edge of the inner surface of the surrounding mask body 1 from outside to inside, a first suction groove 1-4 is formed between the first elastic rib 1-1 and the second elastic rib 1-2, and a second suction groove 1-5 is formed between the second elastic rib 1-2 and the third elastic rib 1-3.
In a further embodiment, the outer surface of the second one-way valve is plated with a heat-conducting metal film.
In a further embodiment, as shown in fig. 4, the mask body 1 is tied and fixed to the head of the wearer by a connecting member 11.
The use principle of the invention is as follows:
1. the filter can be used for a long time by replacing the filter, so that the cost of the mask is greatly reduced, and particularly, the filter can be produced on a large scale on an automatic machine through a die, so that the production capacity can be greatly improved and the consumption of the mask is reduced due to simple process;
2. as shown in fig. 1 to 6, when a wearer inhales, the first one-way valve is opened, external fresh air enters through the air cavity a7, when the wearer exhales, the first one-way valve is closed, the second one-way valve is opened, the air is exhausted through the air cavity B3, when the wearer inhales again, the second one-way valve is closed, and the first one-way valve is opened; the exhaled air and the inhaled air are divided, the exhaled waste gas is intercepted outside the second one-way valve during inhalation, the first one-way valve is closed during exhalation, the second one-way valve is opened, and the waste gas is prevented from being gathered in the air cavity A7, so that the defects of gas mixing and unsmooth breathing caused by the fact that the waste gas exhaled by a wearer is accumulated in the mask body in the prior art are overcome;
3. due to the blocking and flow guiding effect of the second one-way valve on the exhaled air flow, water vapor in the exhaled air is easy to condense or hang through the second one-way valve and drops into the liquid collecting tank 3-5; particularly, the outer surface of the second one-way valve is plated with the heat-conducting metal film, so that the effect of blocking moisture is more obvious; the water is fully absorbed in the sterile absorbent cotton, and the sterile absorbent cotton can be replaced in time, so that the mask body is prevented from generating bacteria and peculiar smell; more importantly, the filter disc is protected from being soaked by moisture, and the premature failure of the filter disc is prevented;
4. the air bag 8 can play an active adjusting role, when a wearer needs the air bag, the air exchange in the air cavity A7 can be realized by squeezing the air bag 8, so that the wearer can be ensured to breathe the external fresh air, specifically, when the air bag 8 is squeezed, the air in the air bag 8 is discharged outside through the second air outlet units 3-7, due to the blocking effect of the second one-way valve, the air cannot enter the inlet cover body 1, the hands are loosened, the air bag 8 rebounds, the one-way valve A is opened, the air in the air cavity A7 enters the air bag 8, negative pressure is formed in the air cavity A7, the external air is guided to enter the air cavity A7 through the filter disc A5, the repeated squeezing can exhaust the air stored in the air cavity A7, so that the wearer can be ensured to breathe the external air, and the suffocation symptom of the wearer is further relieved; through the arrangement, the mask body 1 solves the problem that waste gas and outside air in the mask body 1 are not mixed clearly in the prior art, has an active adjusting function, and is better in use experience of a wearer;
5. the inner side of the mask body 1 is provided with a first elastic rib 1-1, a second elastic rib 1-2, a third elastic rib 1-3, a first suction groove 1-4 and a second suction groove 1-5, after the mask body is bound and fixed with the head of a wearer through a connecting part 11, the first elastic rib 1-1, the second elastic rib 1-2 and the third elastic rib 1-3 can form 3 barriers, and the first suction groove 1-4 and the second suction groove 1-5 firmly adsorb the mask body 1 on the face to prevent droplet infection.
Claims (10)
1. An anti-suffocating mask device for infectious diseases in the department of respiration, which is characterized in that: the mask comprises an airtight mask body, wherein an integrally formed transition air cavity and an air cavity A connected with the front end of the transition air cavity are arranged in the middle of the front end of the mask body, an air cavity B is further connected to the front part of the transition air cavity and/or the two sides of the rear part of the air cavity A, replaceable filter discs are arranged at the front end of the air cavity A and the outer side end of the air cavity B, a first one-way air valve is further arranged on the inner wall surface of the air cavity A, and the first one-way air valve is located between the filter disc of the air cavity A and the inner side end of the air cavity B; the surface of the inner wall of the air cavity B is also provided with a second one-way air valve which is positioned between the outer side end and the inner side end of the air cavity B; one of the first one-way valve or the second one-way valve is used for limiting the gas to flow out of the mask body, and the other one of the first one-way valve or the second one-way valve is used for limiting the gas to flow into the mask body.
2. The respiratory infectious disease breath hold mask device as claimed in claim 1, wherein: the first one-way valve is used for limiting gas to flow into the mask body and comprises a fixed plate A fixedly connected to the upper end of the inner wall surface of the air cavity A, a movable plate A hinged to the lower end of the fixed plate A through a hinged shaft A and a limiting plate A fixedly connected to the outer end face of the fixed plate A, the lower end of the limiting plate A extends downwards and abuts against the outer end face of the movable plate A when the outer end face of the movable plate A and the outer end face of the fixed plate A are located on the same plane, and the shape and the size of the fixed plate A and the movable plate A are matched with the air cavity A; the one-way valve of second be used for injecing gaseous this external flow of gauze mask, and the one-way valve of second shape structure and mounting means is the same with first one-way valve, including fixed plate B, articulated shaft B, fly leaf B, limiting plate B, the one-way valve of second only lie in with the difference of first one-way valve, limiting plate B fixed connection in fixed plate B's medial surface.
3. The respiratory infectious disease breath hold mask device as claimed in claim 2, wherein: the filter disc comprises a first filter disc arranged in the air cavity A and a second filter disc arranged in the air cavity B, and the first filter disc and the second filter disc are identical in shape, structure and installation mode.
4. A breath hold mask apparatus as recited in claim 3, wherein: the edge of the first filter element is provided with a rubber ring for extrusion sealing, a filter part is fixedly connected inside the rubber ring, the filter part comprises fixing nets arranged at two ends, and a waterproof layer, a medical mask filter layer and a medical non-woven fabric layer are sequentially arranged between the fixing nets at the two ends from outside to inside; the inner wall surface of the air cavity A is fixedly connected with an annular groove, an annular bulge is arranged on the inner end face of the rubber ring, the annular bulge can be in extrusion sealing with the annular groove, an internal thread is further arranged on the inner wall surface of the air cavity A on the outer side of the annular groove, a fixing ring A used for fixedly extruding the rubber ring is in threaded connection with the internal thread, the fixing ring A comprises an annular top and a convex ring integrally formed at the inner side end of the annular top, and the outer wall surface of the convex ring is connected with the outer end of the air cavity A through the internal thread.
5. The respiratory infectious disease breath hold mask device as claimed in claim 4, wherein: and a liquid collecting tank with an arc-shaped cross section is further arranged at the bottom of the inner side wall of the air cavity B between the second one-way valve and the inner side end of the air cavity B, and a replaceable water absorbing material is arranged in the liquid collecting tank.
6. The respiratory infectious disease breath hold mask device as claimed in claim 5, wherein: the water absorption material be aseptic absorbent cotton, aseptic absorbent cotton outward appearance cladding have the non-woven fabrics, the bottom of non-woven fabrics and the tank bottom of collecting tank are equipped with the magic of mutually supporting and paste primary and secondary knot.
7. The respiratory infectious disease breath hold mask device as claimed in claim 6, wherein: a first air inlet unit is formed on the inner side of a first one-way valve in the air cavity A, and a second air inlet unit is formed in the air cavity A and positioned between the first one-way valve and the first filter disc; a first air outlet unit is formed inside the second one-way valve and in the air cavity B, and a second air outlet unit is formed between the second one-way valve and the second filter disc; the lower part of the air cavity A and/or the transition air cavity is also connected with an air bag, the air bag is communicated with the inside of the first air inlet unit through an air inlet pipe, a one-way valve A which limits the flow of air to the air bag only is arranged in the air inlet pipe, the air bag is communicated with the inside of the second air outlet unit through an air outlet pipe, and a one-way valve B which limits the flow of air to the second air outlet unit only is arranged at an opening of the air outlet pipe, which is positioned on the side wall of the second air outlet unit.
8. The breathing mask device according to any one of claims 1 to 7, wherein: the mask body is made of airtight fabric or medical silica gel material; encircle gauze mask body internal surface edge and be equipped with first elasticity bead, second elasticity bead, third elasticity bead from outside to inside in proper order, first elasticity bead and second elasticity bead between form first groove of inhaling, form the second between second elasticity bead and third elasticity bead and inhale the groove.
9. The respiratory infectious disease breath hold mask device as claimed in claim 2, wherein: and the outer surface of the second one-way valve is plated with a heat-conducting metal film.
10. The respiratory infectious disease suffocating prevention mask device according to any one of claims 1 to 7 and 9, wherein: the mask body is fixedly tied with the head of a wearer through a connecting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010666958.XA CN111802727B (en) | 2020-07-13 | 2020-07-13 | Infectious disease anti-suffocating mask device for department of respiration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010666958.XA CN111802727B (en) | 2020-07-13 | 2020-07-13 | Infectious disease anti-suffocating mask device for department of respiration |
Publications (2)
| Publication Number | Publication Date |
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| CN111802727A true CN111802727A (en) | 2020-10-23 |
| CN111802727B CN111802727B (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010666958.XA Expired - Fee Related CN111802727B (en) | 2020-07-13 | 2020-07-13 | Infectious disease anti-suffocating mask device for department of respiration |
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| CN (1) | CN111802727B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112675448A (en) * | 2020-12-29 | 2021-04-20 | 高芷琪 | Infectious disease anti-suffocating mask device for department of respiration |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020104538A1 (en) * | 2001-01-10 | 2002-08-08 | Siemens-Elema Ab | Manual ventilation bag |
| CN101878055A (en) * | 2007-11-27 | 2010-11-03 | 3M创新有限公司 | Face mask with unidirectional valve |
| CN107890616A (en) * | 2018-01-17 | 2018-04-10 | 贾超云 | One kind is used for healthcare givers's Professional sanitary protectire breezing mask |
| CN109395273A (en) * | 2018-11-07 | 2019-03-01 | 唐山市化学厂有限公司 | A kind of how anti-gas mask of multiple-effect |
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2020
- 2020-07-13 CN CN202010666958.XA patent/CN111802727B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020104538A1 (en) * | 2001-01-10 | 2002-08-08 | Siemens-Elema Ab | Manual ventilation bag |
| CN101878055A (en) * | 2007-11-27 | 2010-11-03 | 3M创新有限公司 | Face mask with unidirectional valve |
| CN107890616A (en) * | 2018-01-17 | 2018-04-10 | 贾超云 | One kind is used for healthcare givers's Professional sanitary protectire breezing mask |
| CN109395273A (en) * | 2018-11-07 | 2019-03-01 | 唐山市化学厂有限公司 | A kind of how anti-gas mask of multiple-effect |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112675448A (en) * | 2020-12-29 | 2021-04-20 | 高芷琪 | Infectious disease anti-suffocating mask device for department of respiration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111802727B (en) | 2022-10-25 |
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Effective date of registration: 20221011 Address after: 441000 Jiefang Road, Fancheng District, Xiangyang, Hubei Province, No. 15 Applicant after: XIANGYANG NO.1 PEOPLE'S Hospital Address before: 679 Tongle Road, Shibei District, Qingdao, Shandong Province Applicant before: QINGDAO SHIBEI INSTITUTE OF BLUE SKY PSYCHOLOGY |
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