CN111744119A - Air supply and exhaust type mask based on multi-channel filtering function - Google Patents
Air supply and exhaust type mask based on multi-channel filtering function Download PDFInfo
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- CN111744119A CN111744119A CN202010322377.4A CN202010322377A CN111744119A CN 111744119 A CN111744119 A CN 111744119A CN 202010322377 A CN202010322377 A CN 202010322377A CN 111744119 A CN111744119 A CN 111744119A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
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- 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
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
- A41D27/28—Means for ventilation
- A41D27/285—Means for ventilation with closure adjustment
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/006—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort with pumps for forced ventilation
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
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- 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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
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- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physical Education & Sports Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
Air supply and exhaust type mask based on multi-filtering function comprises an air supply device with multi-filtering function, an exhaust device with multi-filtering function, a detection control device and an air-impermeable mask body. The detection control device detects air pressure at two sides of the air supply device with the multi-channel filtering function, and further controls the rotating speed of a fan arranged in the air supply device with the multi-channel filtering function; the fan extracts air filtered by the multi-channel filter sheets arranged in the air supply device with the multi-channel filtering function and sends the air into the air-tight mask body through the air supply conduit so as to be breathed by people; the foul smell of people's exhalation is sent into through exhaust duct multichannel filtering capability's exhaust apparatus, and the warp multichannel filtering capability's the built-in multichannel filter disc of exhaust apparatus filters, by the external world of the built-in fan discharge of multichannel filtering capability's exhaust apparatus. The mask is simple in structure, low in technical threshold and easy to use, and solves the problems that the existing mask is low in filtering efficiency, low in sealing degree and unsmooth in breathing and partially solves the problem that the mask cannot be reused.
Description
Technical Field
The invention relates to the field of protective articles, in particular to an air supply and exhaust type mask based on a multi-channel filtering function.
Background
In 2019, the outbreak of the novel coronavirus pneumonia happens, and the whole world is rolled up. The countries are closed to cities or countries one after another, various large activities are forbidden, enterprises stop working, schools stop working, and service industry stops working comprehensively, so that very serious economic loss and social loss are caused.
In the current society with frequent personnel movement, the existing mask can not solve the current problems. The existing mask has no main four problems: firstly, the mask cannot be reused, which not only causes environmental pollution, but also causes the mask production speed to be unable to meet the requirements; secondly, the filtering efficiency of the mask is not high, the filtering efficiency of the common mask can reach 95 percent and can be higher, but the requirement of the filtering efficiency of a people flow dense area can not be met. On the basis of the existing mask filtering technology, even if the filtering efficiency is improved by 1 percent, the technical requirement is very high and even difficult to achieve; thirdly, the close fit degree of the mask and the face of the human body is low, and outside air can easily enter the mask through gaps; and fourthly, the mask is worn for a long time, the breathing is not smooth, the vexation emotion is generated, the mask is worn askew and even taken off accidentally, and the mask is worn askew or taken off, so that the filtering failure of the mask is caused.
Based on the above problems of the mask, once an epidemic outbreak occurs, the traditional isolation method still has to be adopted to deal with the epidemic outbreak, so that personnel mobility is seriously influenced, enterprises cannot work again, schools cannot learn, and social and economic development is stopped.
Disclosure of Invention
Aiming at the problems of the existing mask, the invention integrates the advantages of the air supply type mask and the air filtration type mask, provides the air supply and exhaust type mask based on a plurality of filtration functions, which has simple structure, low technical requirement and easy use, not only can provide a unique trusted air source and an exhaust outlet, but also can solve the problems of low filtration efficiency, low adhesion degree and unsmooth breathing of the mask and partially solve the problem that the mask cannot be reused, thereby supporting the problems of enterprise rework, school lesson recovery and the like under the serious epidemic situation.
In order to achieve the purpose, the invention provides the following technical scheme: air supply and exhaust type mask based on multi-channel filtering function comprises an air supply device (1) with multi-channel filtering function, an exhaust device (2) with multi-channel filtering function, a detection control device (3) and an air-impermeable mask body (6).
The detection control device (3) detects air pressure at two sides of the air supply device (1) with the multi-channel filtering function, and further controls the rotating speed of a fan (9) arranged in the air supply device (1) with the multi-channel filtering function; the fan (9) extracts air filtered by a plurality of filter sheets (7) arranged in the air supply device (1) with the plurality of filtering functions, and the air is sent into the air-tight mask body (6) through an air supply conduit (4) for people to breathe; the foul smell of people's exhalation is sent into through exhaust duct (5) multichannel filtering capability's exhaust apparatus (2), and the warp multichannel filtering capability's exhaust apparatus (2) built-in multichannel cassette (7) filter, by multichannel filtering capability's exhaust apparatus (2) built-in fan (9) are discharged externally.
Preferably, the air supply device (1) with the multi-channel filtering function is connected with the air supply conduit (4) and sends filtered air into the air-tight mask body (6); the multi-channel filter sheets (7) are arranged in the multi-channel air supply device (1) with the filtering function, are tightly fixed on the inner wall and are tightly attached to the wire netting (8) to prevent the filter sheets from being torn, and the filtering surfaces of the filter sheets face the outside to prevent toxic substances in the outside air from entering; and the fan (9) arranged between any two of the plurality of filter sheets (7) receives the power supply and control command of the detection control device (3), pumps the filtered air to the air supply conduit (4) and sends the filtered air into the air-tight mask body (6).
Preferably, the exhaust device (2) with the multi-channel filtering function is connected with the exhaust conduit (5) and is used for inhaling the foul air exhaled by the person in the air-proof mask body (6); the multi-channel filter sheets (7) are arranged in the exhaust device with the multi-channel filtering function, are tightly fixed on the inner wall and are tightly attached to the wire netting (8) to prevent the filter sheets from being torn, and the filtering surfaces of the filter sheets face the exhaust duct to prevent toxic substances in the foul breath exhaled by a person from entering the outside air; and the fan (9) arranged between any two of the multi-channel filter sheets (7) receives the power supply and control command of the detection control device (3) and discharges filtered foul air to the outside air.
Preferably, the filter sheet (7) is made of medical masks, civil sanitary masks and other materials with the same filtering effect, which meet the national standard; the shape of the filter sheet (7) meets the shape and fixing requirements of the air supply device (1) with the multi-channel filtering function or the air exhaust device (2) with the multi-channel filtering function; the filter disc (7) is easy to replace after failure in the air supply device (1) with the multi-channel filtering function and the exhaust device (2).
Preferably, a control chip (31) of the detection control device (3) is connected with a power supply (32) of the detection control device by a wire, and provides electric power support for the control chip (31), the air supply device (1) with the multi-channel filtering function and the exhaust device (2) with the multi-channel filtering function, and gives an alarm when the electric quantity of the power supply (32) is reduced to a certain degree; the power supply (32) can be a built-in fixed power supply which is directly charged by a charger, and can also be a replaceable rechargeable or non-rechargeable battery; the air pressure detection sensor (33) of the detection control device (3) is connected with the control chip (31) through wires and control lines, the air pressure detection sensor (33) which is arranged at the end, close to the outside air, of the air supply device (1) with the multi-channel filtering function is used for detecting the air pressure of the outside air, the air pressure detection sensor (33) which is arranged between the filter sheet (7) of the air supply device (1) with the multi-channel filtering function, closest to the air supply guide pipe (4), and the air supply guide pipe (4) is used for detecting the air pressure in the air-impermeable mask body (6), and the air pressure detection sensor (33) which is used for detecting the air pressure in the air-impermeable mask body (6) can also be arranged in the air-impermeable mask body (6); the detection control device (3) adjusts the fan rotating speed of the air supply device (1) with the multi-channel filtering function and the fan rotating speed of the exhaust device (2) with the multi-channel filtering function according to the internal air pressure and the external air pressure detected by the air pressure detection sensor (33), so that the internal air pressure is slightly larger or larger than the external air pressure, and the fact that the external air cannot enter the inside of the air-impermeable mask body (6) through a gap between the air-impermeable mask body (6) and the face of a human body is guaranteed.
Preferably, the mask surface (61) of the air-proof mask body (6) can adopt the shape and appearance design of a medical mask and can also be made into the shape of the face of a human body, but the material needs to use a light material which is airtight and air-proof and can be repeatedly used, such as firm and durable leather, silica gel and the like; a layer of sealing ring (62) with proper width and thickness is attached to the periphery of the inner side of the air-proof mask body (6), so that the side leakage prevention design of the mask is realized; the air supply conduit (4) penetrates through the sealing ring (62), enters the air-tight mask body (6) along the inner side of the mask surface (61), is divided into a left air supply conduit and a right air supply conduit, is firmly bonded with the inner wall of the mask surface (61), supplies air to a person for breathing from two sides of the mouth part, or supplies air to the person for breathing from only one side of the mouth part without division; the exhaust duct (5) penetrates through the sealing ring (62), enters the air-tight mask body (6) along the inner side of the mask surface (61), is firmly bonded with the inner wall of the mask surface (61), and extracts the foul air exhaled by a person from the front of the mouth; the two sides of the air-proof mask body (6) are embedded with a left support body and a right support body (63), so that the mask surface (61) keeps a certain distance from the mouth and contains a certain amount of air.
Preferably, the sealing ring (62) has a proper width and thickness, is made of a light material with good elasticity and air impermeability, and is attached to the periphery of the inner side of the cover surface (61) of the air-impermeable mask body (6), so that the edge of the air-impermeable mask body (6) is in tight contact with the face of a human body without any gap, and external air is prevented from entering the air-impermeable mask body (6) through the face of the human body.
Preferably, when the foul air exhaled by the person can be directly exhausted to the outside without being filtered, the exhaust device (2) with the multi-channel filtering function and the exhaust duct (5) on the inner side of the air-impermeable mask body (6) are not used, but a one-way check valve (64) is required to be additionally arranged on the air-impermeable mask body (6) in the front position of the mouth part, so that the foul air exhaled by the person is exhausted to the outside through the one-way check valve (64), and the outside air can be prevented from entering.
Compared with the existing mask, the mask has the beneficial effects that:
(1) if the mask material meeting the KN95 standard (the filtration efficiency is 95%) is used for manufacturing the filter sheets, three filter sheets are arranged in the air supply device with the multi-channel filtration function, and the filtration efficiency is 1- (1-0.95) × (1-0.95) = 99.9875%; if the air supply device with the multi-channel filtering function and the air exhaust device with the multi-channel filtering function are internally provided with three filter sheets, and each person wears the same air supply and exhaust type mask based on the multi-channel filtering function, six filtering protection effects are achieved, the filtering efficiency reaches 1- (1-0.95) × (1-0.95) =99.9999984375%, and the filtering efficiency is remarkably improved.
(2) The two layers of protection measures improve the sealing degree, firstly, sealing rings are attached to the periphery of the inner side of the air-proof mask body, and the sealing degree is far better than that of the existing mask; secondly, the inside atmospheric pressure of ventilative gauze mask body is greater than outside air atmospheric pressure, and inside air can only flow outwards, and outside air can not get into ventilative gauze mask is originally internal, has improved the driving fit degree.
(3) The smooth breathing is enhanced, and the wearing comfort of the mask is improved. The air supply device with the multi-channel filtering function uses the fan to send filtered air into the airtight mask body through the air supply conduit, reduces breathing difficulty of a user, ensures smooth breathing, and can effectively solve the problem that the mask is askew worn or removed to cause filtering failure of the mask.
(4) The problem that the mask cannot be reused is partially solved, the air-impermeable mask body can be reused, and due to the fact that the fan is used, the size of each filter sheet can be only one third of the area of the mask, even less, normal breathing can be met, and therefore the using materials of the existing mask are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a multi-channel filtering air supply device, a multi-channel filtering air exhaust device and a detection control device.
Fig. 2 is a schematic structural view of an air-impermeable mask body with air supply ducts and air exhaust ducts.
FIG. 3 is a schematic structural diagram of a gas supply device and a detection control device with multi-channel filtering function.
Figure 4 is a schematic view of the construction of the air impermeable mask body with air supply conduits and check valves.
In the figure: 1. a gas supply device with a plurality of filtering functions; 2. a multi-channel exhaust device with a filtering function; 3. a detection control device; 31. a control chip; 32. a power source; 33. an air pressure detection sensor; 4. an air supply duct; 5. an exhaust conduit; 6. a gas-impermeable mask body; 61. covering; 62. a sealing ring; 63. a support body; 64. a one-way check valve; 7. a filter disc; 8. a wire mesh; 9. a fan; 10. the direction of the airflow.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not limited thereto. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to fig. 2, a technical solution provided by the present invention: the gas supply device (1) with the multi-channel filtering function and the exhaust device (2) with the multi-channel filtering function are both internally provided with three filter sheets (7). The number of the built-in filter sheets (7) can be increased from three to five or eight according to the requirements of actual conditions, so that higher filtering efficiency and safer protection can be provided; of course, it is also possible to reduce the number of filter sheets, but to leave at least one filter sheet. The air supply device (1) with the multi-channel filtering function extracts air filtered by the filter disc (7) to the air supply conduit (4) through the fan (9), and sends the air to the air-tight mouth mask body (6) for breathing of people. Exhaust apparatus (2) of multichannel filtering capability extracts the foul smell of breathing out the people to this device in via exhaust duct (5), filters the back through filter disc (7), is pumped to the outside air by fan (9). To this end, the entire process of air supply, respiration, and exhaustion is completed.
In order to ensure that the air pressure in the air-proof mask body (6) is higher than but not higher than the external atmospheric air pressure, the detection control device (3) controls the rotating speed of the fan (9) of the air supply device (1) with the multi-channel filtering function according to the size of the air pressure detection sensor (33), so that the air pressure in the air-proof mask body (6) is adjusted.
In the embodiment, a person using the device not only protects the person, but also can effectively protect other people. The device is not only very suitable for places with large flow of people, such as large conferences, enterprises, schools and cinemas, but also suitable for medical staff in ordinary hospitals and shelter hospitals to use, and ensures that the medical staff are not infected.
Example 2
Referring to fig. 3 to fig. 4, a technical solution provided by the present invention is: in view of the weight of the power supply and the device and the use duration of the electric power, the turbid air exhaled by a person is not required to be filtered in some occasions and can be directly exhausted to the outside, and the exhaust device (2) with the multi-channel filtering function and the exhaust conduit (5) on the inner side of the air-impermeable mask body (6) are not used, but the air-impermeable mask body (6) needs to be modified.
As shown in fig. 4, a one-way check valve (64) is added on the air-proof mask body (6) at the front position of the mouth part, so that the foul air exhaled by a person is discharged to the outside through the one-way check valve (64), and the outside air can be prevented from entering.
The air supply device (1) with the multi-channel filtering function extracts air filtered by the filter disc (7) to the air supply guide pipe (4) through the fan (9) and sends the air to the air-tight mask body (6) for breathing of people. The exhaled foul air is discharged to the outside atmosphere through a one-way check valve (64).
In the embodiment, a person using the device can only protect the person, but cannot effectively protect other people. The device reduces the weight of the device, prolongs the power use time, and can be suitable for places with large outdoor flow of people but good air flow, such as self-service work and park play.
In an embodiment, a compact arrangement of multiple filters may be used, and only one fan is used to extract filtered air or foul air at a time, but the filter closest to the fan may be torn first due to excessive suction force, resulting in reduced filtration efficiency. In the above embodiments, except the air-impermeable mask body, other devices may be made into a helmet type, a backpack type, or a portable type, and connected through a catheter. The air supply and exhaust type mask based on the multi-channel filtering function is suitable for students, and does not influence the sight of the students in the back row; the helmet type air supply and exhaust type mask based on the multi-channel filtering function is suitable for construction workers, can ensure physical safety of personnel, and can well prevent epidemic propagation.
Claims (8)
1. Supply exhaust formula gauze mask based on multichannel filtering capability, its characterized in that: the device comprises a gas supply device (1) with a multi-filtering function, an exhaust device (2) with a multi-filtering function, a detection control device (3) and an airtight mask body (6); the detection control device (3) detects air pressure at two sides of the air supply device (1) with the multi-channel filtering function, and further controls the rotating speed of a fan (9) arranged in the air supply device (1) with the multi-channel filtering function; the fan (9) extracts air filtered by a plurality of filter sheets (7) arranged in the air supply device (1) with the plurality of filtering functions, and the air is sent into the air-tight mask body (6) through an air supply conduit (4) for people to breathe; the foul smell of people's exhalation is sent into through exhaust duct (5) multichannel filtering capability's exhaust apparatus (2), and the warp multichannel filtering capability's exhaust apparatus (2) built-in multichannel cassette (7) filter, by multichannel filtering capability's exhaust apparatus (2) built-in fan (9) are discharged externally.
2. The mask with multiple filtering functions for supplying and exhausting air according to claim 1, wherein: the air supply device (1) with the multi-channel filtering function is connected with the air supply conduit (4) and sends filtered air into the air-tight mask body (6); the multi-channel filter sheets (7) are arranged in the multi-channel air supply device (1) with the filtering function, are tightly fixed on the inner wall and are tightly attached to the wire netting (8) to prevent the filter sheets from being torn, and the filtering surfaces of the filter sheets face the outside to prevent toxic substances in the outside air from entering; and the fan (9) arranged between any two of the plurality of filter sheets (7) receives the power supply and control command of the detection control device (3), pumps the filtered air to the air supply conduit (4) and sends the filtered air into the air-tight mask body (6).
3. The mask with multiple filtering functions for supplying and exhausting air according to claim 1, wherein: the exhaust device (2) with the multi-channel filtering function is connected with the exhaust conduit (5) and sucks the foul air exhaled by the person in the air-proof mask body (6) into the exhaust conduit; the multi-channel filter sheets (7) are arranged in the exhaust device with the multi-channel filtering function, are tightly fixed on the inner wall and are tightly attached to the wire netting (8) to prevent the filter sheets from being torn, and the filtering surfaces of the filter sheets face the exhaust duct to prevent toxic substances in the foul breath exhaled by a person from entering the outside air; and the fan (9) arranged between any two of the multi-channel filter sheets (7) receives the power supply and control command of the detection control device (3) and discharges filtered foul air to the outside air.
4. The mask with multiple filtering functions for supplying and exhausting air according to claims 2 and 3, wherein: the filter sheet (7) is made of medical mask, civil sanitary mask and other materials with the same filtering effect which meet the national standard; the shape of the filter sheet (7) meets the shape and fixing requirements of the air supply device (1) with the multi-channel filtering function or the air exhaust device (2) with the multi-channel filtering function; the filter disc (7) is easy to replace after failure in the air supply device (1) with the multi-channel filtering function and the exhaust device (2).
5. The mask with multiple filtering functions for supplying and exhausting air according to claim 1, wherein: a control chip (31) of the detection control device (3) is connected with a power supply (32) of the detection control device through a wire, provides electric power support for the control chip (31), the air supply device (1) with the multi-channel filtering function and the exhaust device (2) with the multi-channel filtering function, and gives an alarm when the electric quantity of the power supply (32) is reduced to a certain degree; the power supply (32) can be a built-in fixed power supply which is directly charged by a charger, and can also be a replaceable rechargeable or non-rechargeable battery; the air pressure detection sensor (33) of the detection control device (3) is connected with the control chip (31) through wires and control lines, the air pressure detection sensor (33) which is arranged at the end, close to the outside air, of the air supply device (1) with the multi-channel filtering function is used for detecting the air pressure of the outside air, the air pressure detection sensor (33) which is arranged between the filter sheet (7) of the air supply device (1) with the multi-channel filtering function, closest to the air supply guide pipe (4), and the air supply guide pipe (4) is used for detecting the air pressure in the air-impermeable mask body (6), and the air pressure detection sensor (33) which is used for detecting the air pressure in the air-impermeable mask body (6) can also be arranged in the air-impermeable mask body (6); the detection control device (3) adjusts the fan rotating speed of the air supply device (1) with the multi-channel filtering function and the fan rotating speed of the exhaust device (2) with the multi-channel filtering function according to the internal air pressure and the external air pressure detected by the air pressure detection sensor (33), so that the internal air pressure is slightly larger or larger than the external air pressure, and the fact that the external air cannot enter the inside of the air-impermeable mask body (6) through a gap between the air-impermeable mask body (6) and the face of a human body is guaranteed.
6. The mask with multiple filtering functions for supplying and exhausting air according to claim 1, wherein: the mask surface (61) of the air-proof mask body (6) can adopt the shape and appearance design of a medical mask and can also be made into the shape of the face of a human body, but the material needs to use a light material which is airtight and air-proof and can be repeatedly used, such as firm and durable leather, silica gel and other materials; a layer of sealing ring (62) with proper width and thickness is attached to the periphery of the inner side of the air-proof mask body (6), so that the side leakage prevention design of the mask is realized; the air supply conduit (4) penetrates through the sealing ring (62), enters the air-tight mask body (6) along the inner side of the mask surface (61), is divided into a left air supply conduit and a right air supply conduit, is firmly bonded with the inner wall of the mask surface (61), supplies air to a person for breathing from two sides of the mouth part, or supplies air to the person for breathing from only one side of the mouth part without division; the exhaust duct (5) penetrates through the sealing ring (62), enters the air-tight mask body (6) along the inner side of the mask surface (61), is firmly bonded with the inner wall of the mask surface (61), and extracts the foul air exhaled by a person from the front of the mouth; the two sides of the air-proof mask body (6) are embedded with a left support body and a right support body (63), so that the mask surface (61) keeps a certain distance from the mouth and contains a certain amount of air.
7. The mask with multiple filtering functions for supplying and exhausting air of claim 6, wherein: the sealing ring (62) has proper width and thickness, is made of light materials with good elasticity and air impermeability, and is attached to the periphery of the inner side of the cover surface (61) of the air impermeable mask body (6), so that the edge of the air impermeable mask body (6) is tightly contacted with the face of a human body without any gap, and external air is prevented from entering the air impermeable mask body (6) through the face of the human body.
8. The mask with multiple filtering functions for supplying and exhausting air according to claims 3 and 6, wherein: when the foul smell exhaled by the person can be directly exhausted outside without filtering, the exhaust device (2) with the multi-channel filtering function and the exhaust guide pipe (5) on the inner side of the air-impermeable mask body (6) are not needed, but a one-way check valve (64) is needed to be additionally arranged on the air-impermeable mask body (6) in the front position of the mouth part, so that the foul smell exhaled by the person is exhausted outside through the one-way check valve (64), and the outside air can be prevented from entering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322377.4A CN111744119A (en) | 2020-04-22 | 2020-04-22 | Air supply and exhaust type mask based on multi-channel filtering function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322377.4A CN111744119A (en) | 2020-04-22 | 2020-04-22 | Air supply and exhaust type mask based on multi-channel filtering function |
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| CN111744119A true CN111744119A (en) | 2020-10-09 |
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| CN202010322377.4A Pending CN111744119A (en) | 2020-04-22 | 2020-04-22 | Air supply and exhaust type mask based on multi-channel filtering function |
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| CN105771106A (en) * | 2015-12-28 | 2016-07-20 | 冉和平 | Dust mask |
| CN207076037U (en) * | 2017-08-23 | 2018-03-09 | 昆山好创电子科技有限公司 | Filter face mask with humiture sensing |
| KR20180049661A (en) * | 2016-11-03 | 2018-05-11 | 한명일 | Gas mask |
| CN208877751U (en) * | 2018-07-12 | 2019-05-21 | 昆山好创电子科技有限公司 | Filter face mask with Measurement System of Air Pressure |
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2020
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| AU2011265802A1 (en) * | 2010-06-18 | 2013-01-10 | Facecover Sweden Ab | A full face mask for a PAPR |
| CN203874313U (en) * | 2014-04-14 | 2014-10-15 | 左国刚 | Portable respiration assistance device, mask and respiration assistance system thereof and nasal dosage device |
| CN104548403A (en) * | 2014-12-25 | 2015-04-29 | 谭名芝 | Air supply type respirator device |
| CN204697933U (en) * | 2015-03-17 | 2015-10-14 | 天津市久欣荣科技有限公司 | Active intake and exhaust haze mouth mask |
| CN105771106A (en) * | 2015-12-28 | 2016-07-20 | 冉和平 | Dust mask |
| KR20180049661A (en) * | 2016-11-03 | 2018-05-11 | 한명일 | Gas mask |
| CN207076037U (en) * | 2017-08-23 | 2018-03-09 | 昆山好创电子科技有限公司 | Filter face mask with humiture sensing |
| CN208877751U (en) * | 2018-07-12 | 2019-05-21 | 昆山好创电子科技有限公司 | Filter face mask with Measurement System of Air Pressure |
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