CN113491361A

CN113491361A - Virus isolation type mask

Info

Publication number: CN113491361A
Application number: CN202010257616.2A
Authority: CN
Inventors: 韩天和
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-10-12

Abstract

The invention belongs to the technical field of masks, and particularly relates to a virus isolation type mask. At present, various masks, including medical masks, N95 masks and various electric masks, cannot completely and effectively isolate virus infection. The invention aims to provide a mask capable of effectively isolating viruses. The invention adds the ultraviolet ray virus killing functional structure in the mask air filtering system, which can instantly inactivate the virus including new coronavirus, thereby enabling the wearer to work normally, move freely and avoid virus infection, and being suitable for preventing virus infection when mass plague occurs. The mask can also filter particles and harmful gases in the air, and a user can use the mask to prevent air pollution.

Description

Virus isolation type mask

Technical Field

The invention relates to the technical field of masks, in particular to a virus isolation type mask.

Background

The new coronavirus, influenza virus, etc. can be transmitted in the form of spray and aerosol in the air, and people mainly carry medical disposable masks and N95 masks to prevent virus infection. Data show that considering that the mask is not tightly sealed when being worn, negative pressure is formed in the mask when the mask inhales, partial polluted gas can enter from the edge of the mask, comprehensive evaluation is carried out, the medical disposable mask can block 50% of viruses, the N95 mask can block 70% of viruses, and the condition can not effectively isolate the infection of the viruses.

And people wear the medical mask for a long time to feel suffocative, and wearing the N95 mask for more than 4 hours may not be good for lung health and is not suitable for wearing for a long time.

Medical masks and N95 masks are disposable products, are not suitable for repeated use, and can cause resource waste and environmental pollution as many disposable plastic products, and the accumulated cost is high after long-term use.

In order to overcome the defects of the disposable mask, a reusable electric mask is introduced into the market, for example, an electric mask (Chinese patent application No. 201820141818.9) is provided, an electric fan assists air supply to reduce the feeling of breathing suffocating, but a filter screen, a battery, a motor and a fan are integrated on the mask and are limited by weight, volume, power and noise factors, so that the reusable electric mask has the defects of low air filtration precision, large weight, short continuous working time of the battery, high noise, large vibration, incapability of effectively isolating viruses, poor wearing experience of a client and inconvenience for cleaning after use.

Another respirator (Chinese patent No. CN102781520B) integrates a filter screen, a battery, a motor and a fan into a whole, utilizes the space of the neck, is improved in the aspect of bearing compared with a mask all-in-one machine, improves the filtering precision by using a HEPA filter screen, but interferes the rotation of the head of a person due to the integration of the mask and the neck part. And because the smallest particle size of the virus is only 0.01 micron, the virus cannot be effectively filtered by a filter screen alone, and the machine has the defects of complicated structure and increased load on the neck of a person.

The other split type wet electric anti-poison and anti-haze mask (Chinese patent application No. 201620099670.8) uses filter cotton as a main filter layer, has low filter precision, can only play a role in blocking saliva droplets, can only play a role in filtering harmful gases by using activated carbon, and cannot effectively filter viruses.

In summary, the current various masks, including medical masks, N95 masks and various electric masks, cannot effectively isolate the infection of viruses, which is a major technical problem to be solved urgently, and the development of masks capable of effectively isolating viruses is significant for isolating new coronavirus or isolating other virulent viruses to spread in the world in the future.

Disclosure of Invention

In order to solve the above problems, it is an object of the present invention to provide a mask for isolating viruses, which can block and kill viruses by 100%. This gauze mask not only can effectively keep apart including the virus including new coronavirus, can also effectively get rid of particle pollutants such as haze to and get rid of harmful gas such as common automobile exhaust, formaldehyde, breathe smoothly, the noise reduction, longer continuous operating time wears comfortablely, and it is convenient to use the back cleanness, can wear for a long time as an effectual individual health safety protection system, plays and lasts the guard action.

The technical scheme of the invention is as follows: a virus-resistant mask comprising an air cleaning device (1), an air supply passage (18) and a mask (17), the mask (17) being adapted to substantially surround at least one of the mouth or nostril and provided with an exhaust check valve (16), the air cleaning device (1) being adapted to receive unfiltered air from the surrounding environment, the unfiltered air being filtered by a main filter (11) provided in the air cleaning device (1) and to supply the filtered air to said mask (17) through the air supply passage (18), the air cleaning device (1) being integrally provided with the air supply passage (18) and the mask (17), or the air cleaning device (1) and the mask (17) being separate from each other and connected by the air supply passage (18) and being fixed to the neck, back, arm or waist of a user by fixing means, wherein the air cleaning device (1) is provided in the housing or in the air supply passage (18), or one or more than one ultraviolet lamp (5) is arranged in the face shield (17), and the ultraviolet lamps (5) are electrically connected with the storage battery in the storage battery bin (8) and the electric switch (14) in sequence.

Preferably, the air purification device (1) is internally provided with a hollow cover plate (13), a main filter screen (11) and an electric fan (10) from outside to inside, one or more ultraviolet lamps (5) are arranged in an inner cavity between the main filter screen (11) and an air supply channel (18) connected with the air purification device (1) or in the air supply channel (18), and the ultraviolet lamps (5) are LED ultraviolet lamps.

Preferably, a preposed coarse filter screen (12) is further arranged between a hollow cover plate (13) and a main filter screen (11) in a shell of the air purification device (1), the electric fan (10) is a centrifugal electric fan, the main filter screen (11) is an HEPA filter screen, a filtering cavity (7) and a disinfection cavity (3) which are separated by a partition plate (6) and are communicated with each other through an air guide pipe (4) on the partition plate are arranged in the air purification device (1), the air guide pipe (4) is made of transparent quartz glass, one end of the air guide pipe (4) in the filtering cavity (7) is arranged to be close to the axial center of the electric fan (10), one end of the air guide pipe (4) in the disinfection cavity (3) is arranged to be far away from an air supply channel (18), one or more ultraviolet lamps (5) are arranged in the opposite disinfection cavity (3), and an ultraviolet detection sensor (33) is arranged in the disinfection cavity (3), the air purification device is characterized in that 2 ultraviolet lamps (5) are oppositely arranged inside the air guide pipe (4) to form a group, at least 1 group of ultraviolet lamps (5) are arranged in the air guide pipe (4), one or more ultraviolet lamps (5) are arranged on the wall surface of the filtering cavity (7), an activated carbon filter screen (2) is arranged at the joint of the inside of the disinfecting cavity (3) and the air supply channel (18), a speed regulation knob (15) is arranged on the air purification device (1), a display panel is arranged on the air purification device, an electronic control device is sequentially and electrically connected with the electric fan (10), the ultraviolet lamps (5) and the ultraviolet light detection sensor (33), and the direction of an air outlet (9) of the electric fan (10) is arranged and is matched with the rotating direction of the air flow in the filtering cavity (7) in the same manner as the rotating direction of the electric fan (10).

Preferably, an exhaust disinfection cavity (20) is further arranged in the air purification device (1), an exhaust air guide pipe (22) is arranged in the exhaust disinfection cavity (20), one end of the exhaust air guide pipe (22) is communicated with the exhaust channel (19), the other end of the exhaust air guide pipe (22) is communicated with the exhaust disinfection cavity (20), the exhaust air guide pipe (22) is made of transparent quartz glass, 2 ultraviolet lamps (5) are oppositely arranged in the exhaust air guide pipe (22) to form a group, at least 1 group of ultraviolet lamps (5) are arranged in the exhaust air guide pipe (22), one end of the exhaust air guide pipe (22) in the exhaust disinfection cavity (20) is far away from an exhaust hole (21) which is arranged on the wall of the exhaust disinfection cavity (20) and is communicated with the external environment, one or more ultraviolet lamps (5) are arranged on the inner wall of the opposite exhaust disinfection cavity (20), and an ultraviolet detection sensor (33) is arranged on the inner wall of the exhaust disinfection cavity (20), the exhaust passage (19) is connected with a one-way exhaust valve (16) arranged on the face mask (17).

Preferably, the air purification device (1) is arranged in a symmetrical semi-ring shape and hung on the neck of a user, the electric fan (10) is arranged in the middle of the air purification device (1), the adjacent surfaces of the air purification device are connected with the filtering cavity (7) and the disinfection cavity (3), the upper part of the disinfection cavity (3) is connected with the quick plug (25), and one end of the air supply channel (18) is connected with the quick plug (25); the other adjacent side of the electric fan (10) is connected with an exhaust disinfection cavity (20), the upper part of the exhaust disinfection cavity (20) is connected with a quick connector (25), and one end of an exhaust channel (19) is connected with the quick connector (25); two main filter screens (11) formed by HEPA filter screens are respectively and symmetrically arranged on one surface of the adjacent disinfection cavity (3) and one surface of the adjacent exhaust disinfection cavity (20); 2 symmetrical battery compartment (8) are connected at air purification device (1) semicircular both ends through 2 articulated axle (24), constitute the circumference annular body that has chest opening, air purification device (1) inner ring face sets up blotter (23) that elastic material constitutes, be provided with annular air flue (28) of intercommunication electric fan (10) air inlet and main filter screen (11) inner face in air purification device (1), annular air flue (28) inside at least symmetry sets up 2 groups ultraviolet lamp (5), in disinfection cavity (3), annular air flue (28), filter cavity (7), all respectively establish an ultraviolet detection sensor (33) in exhaust disinfection cavity (20).

Preferably, the face mask (17) is connected with a face sealing element (27), the face sealing element (27) is made of silica gel, the shape of the face sealing element is matched with the international standard head model face shape and surrounds the mouth and nostrils of the face of a person, a breathing cavity is formed by the face mask (17), the face mask (17) is symmetrically and separately connected with the quick-plug connector (25), the quick-plug connector (25) is respectively connected with the air supply channel (18) and the air exhaust channel (19), the quick-plug connector (25) connected with the air exhaust channel (19) is further connected with the one-way exhaust valve (16), the outer mask cloth (26) is provided with a magic tape at the position D, and the position D of the face mask (17) is correspondingly provided with the magic tape so that the face mask (17) and the outer mask cloth (26) can be detached and connected; the E position of the outer cloth (26) of the face mask is provided with magic tapes which are respectively detachable and connected with the air supply channel (18) and the exhaust channel (19) at the corresponding E position, and the F position of the outer cloth (26) of the face mask is provided with a detachable and connected magic tape.

Preferably, the cushion pad (23) is formed by an elastic net body made of elastic high polymer materials, the mask outer covering cloth (26) is textile cloth, and the air supply channel (18) and the air exhaust channel (19) are formed by ribbon-shaped silicone tubes.

Preferably, quick connector (25) excircle sets up the inverted cone annular structure, and the tip that corresponds air feed channel (18) and exhaust passage (19) of connecting sets up the recess and places sealing washer (29) and realize sealing, still sets up clip (30) by spring (31) and spacing pivot (32) combined action, clip (30) locate to correspond at spacing pivot (32) and set up rotation limit structure, set up the barb structure that prevents quick connector (25) and extract at the head.

The invention aims to provide a mask capable of effectively isolating viruses, which has no design requirements before, and is designed for the purposes of isolating and protecting common bacteria and viruses, generally preventing haze, automobile exhaust and the like.

Compared with the prior art, the invention is a substantial innovation, namely, the ultraviolet virus killing technology is firstly used in the technical field of masks. Viruses vary in shape and size, and most viruses, which float in the air as aerosols with diameters between 0.01 and 0.30 microns, cannot be completely filtered out by filtration with a filter alone.

The technical scheme of the invention comprises a lung power self-suction type mask, but negative pressure is formed in the mask when the mask inhales, unfiltered air leaks into gaps at the edges, and the aim of effectively isolating viruses is difficult to achieve, so that the lung power self-suction type mask is not recommended.

The technical scheme of the invention comprises the integrated electric mask, but the electric mask integrates the filter screen, the battery, the motor and the fan on the mask, so that the mask has heavy weight for the face, high noise, high vibration, low filtering precision, short continuous working time of the battery, uncomfortable wearing of a user and difficult achievement of the purpose of effectively isolating viruses, and is not recommended.

The technical scheme of the invention is recommended to be used in a split type electric mask, namely the mask is separated from the air purification device. The ultraviolet ray is used as a high-efficiency broad-spectrum virus killing technology and is widely applied to the medical field, the LED type ultraviolet lamp used by the invention emits deep ultraviolet light with a UVC wave band with the wavelength of below 280nm, the high-efficiency broad-spectrum virus killing is low in power consumption, the LED type ultraviolet lamp is suitable for a mask-like portable device, and 100% inactivation of bacterial viruses including 100% inactivation of new corona viruses can be realized through air passage design and optimization of irradiation dose and duration. The LED type ultraviolet lamp is more energy-saving and environment-friendly than a mercury high-pressure ultraviolet lamp tube.

In order to improve the virus killing efficiency by ultraviolet rays, the invention designs a smart air passage. An air guide pipe (4) made of quartz glass is arranged in the air purification device (1), the effective irradiation angle of the LED ultraviolet lamp (5) is 130 degrees, and the ultraviolet lamps (5) are arranged in the air guide pipe (4) in a pair mode, so that the sterilizing light has no dead angle. And air flows through the irradiation area of the ultraviolet lamp (5) in a short distance by utilizing the small geometric dimension of the air guide pipe (4), so that the inactivation efficiency is improved. The air guide pipe (4) is made of quartz glass materials, so that viruses in the air passing through the air guide pipe (4) are killed by the ultraviolet lamp (5), and simultaneously, the viruses in the air in the filtering cavity (7) and the disinfecting cavity (3) are killed by the ultraviolet rays of the ultraviolet lamp (5) through the air guide pipe (4), and compared with an opaque air guide pipe, the efficiency of killing the viruses is improved. The direction of air blowing out of the air outlet (9) enables the airflow to rotate at a high speed in the filtering cavity (7) by taking the axis of the electric fan (10) as the center, the air inlet of the air guide pipe (4) is arranged at the position near the axis of the electric fan (10), and because the specific gravity of viruses and attached particles is greater than that of the air, the viruses and the attached particles tend to float away from the air inlet area of the air guide pipe (4), so that the irradiation time of the ultraviolet lamp (5) is prolonged. The air outlet of the air guide pipe (4) is arranged to blow downwards, and the air flow spirally rises in the disinfection cavity (3), so that the irradiation time of viruses in the air can be prolonged.

Compared with a common electric mask, the electric mask has the advantages that the function of ultraviolet disinfection is added, so that the power consumption is increased, the air purification device (1) can be selected to be fixed on the neck, the back, the arms or the waist of a user, and the storage battery with larger power can be carried because the bearing capacity of the neck, the back, the arms or the waist is large. Is more beneficial to filtration and disinfection and prolongs the working time. When the air purification device (1) is fixed on the neck of a user, the mask is provided with 2 symmetrical storage battery bins (8), so that batteries with less electricity can be replaced under the condition of no stop, and if the standby batteries have enough quantity, the mask can continuously work without stop. The air purification device (1) is fixed on the back, can be carried on the back in a backpack mode, the silica gel corrugated pipe is used as an air supply channel (18) and an exhaust channel (19) to communicate with the face mask (17), the weight of the back device cannot be transmitted to the face mask (17), and the fixation and the sealing of the face mask (17) cannot be influenced. Because the back and the waist are heavy, the pillow is more suitable for workers and other people needing to wear for a long time than the neck and the arms. If the mask is additionally provided with goggles or is designed to be in a helmet type, the mask can be expanded to be more suitable for professional workers in the medical field.

In order to reduce the noise of the electric fan (10), a hollow cover plate (13), a front coarse filter screen (12) and a main filter screen (11) are arranged from outside to inside for blocking, so that the noise of the electric fan (10) can be effectively reduced. The buffer pad (23) is an elastic net-shaped body made of elastic high polymer materials, the structure can effectively buffer the vibration caused by the high-speed rotation of the electric fan (10) due to the high polymer material plastic wires, and the material can be washed by water, is particularly breathable and is suitable for skin-friendly contact. Because face guard (17) simple structure, light in weight, it is fixed reliable, do not influence the head action, sealing member (27) closely laminate and surround people's facial mouth and nostril, sealing member (27) are made by silica gel, have fine laminating nature and skin affinity nature, face guard (17) and face need not be too tight like this, some N95 gauze masks are for increasing leakproofness, and the elastic cord has very big pressure to face, bridge of the nose, ear, can even make skin injured. The mask has the advantages that due to electric air supply, micro-positive pressure is formed in the mask, the breathing is smooth, the sealing is not required to be too tight, air in the mask can leak outwards from the place which is not tightly sealed, but due to the positive pressure in the mask, outside polluted air cannot enter the mask, so that the effect of isolating viruses is achieved, the mask is comfortable to wear, and the mask is suitable for being worn for a long time and is protected for a long time.

The invention recommends selecting the main filter screen (11) as HEPA filter screen, which can filter 0.3 micron pollutant particles by 99.97%, and filter 2.5 micron pollutant particles by 100%, that is, haze can filter 100%, and most viruses are about 0.3 micron, which means most viruses are intercepted on the HEPA filter screen, and at this time, no special inactivation mode is needed, as long as the airflow continuously flows, the viruses lose activity. A few viruses penetrate through the HEPA filter screen and are inactivated by ultraviolet rays, so that the purpose of effectively isolating the viruses can be realized. Air entering the disinfection cavity (3) has a little peculiar smell because of being irradiated by ultraviolet rays, and is changed into air which does not contain viruses and has no peculiar smell through the adsorption of the active carbon filter screen (2), and toxic gas in common automobile exhaust in the air can be effectively adsorbed. The invention aims to effectively isolate virus, and simultaneously filters out pollution particles and harmful gas in the air, so that the air pollution can be prevented when the user wears the device in the absence of epidemic situations, pollutants with the particle size of less than 2.5 microns in the air can enter alveoli of a human body, and even smaller pollutants enter blood to cause respiratory tract infection and induce cardiovascular diseases. Every person who pays attention to health can wear, especially daily commuters, motorcyclists, electric bicycle riders, passengers, pedestrians and workers in the road area, traffic managers, construction workers, airport staff, laboratory workers, food processors, culturists, workers in medical institutions, etc.

The technical scheme of the invention can also ensure the safety of the user even if special conditions occur. If the user forgets to charge, the user can use the mobile phone charger to supply power to the mask; if the power supply system fails, the mask provided by the invention can be self-sucked by means of lung power, a certain virus filtering effect can still be achieved, the virus filtering capacity can still exceed that of an N95 mask, and the comprehensive virus filtering capacity of an N95 mask is about 70%. If the one-way exhaust valve (16) should fail, the user will not inhale contaminated air that has not been sterilized. Under special conditions, if the ultraviolet lamp in the disinfection cavity (3) breaks down or attenuates, the ultraviolet detection sensor (33) can send out fault display if the ultraviolet energy sent out is detected to be lower than the minimum limit value, and therefore the mask is prevented from being worn under the condition that viruses cannot be isolated.

In the technical scheme of the invention, the main filter screen (11) and the active carbon filter screen (2) which are composed of HEPA filter screens can be repeatedly used for a long time, and are not disposable sanitary articles, so that the resource waste and the environmental pollution are reduced, the use cost is reduced, and the daily maintenance work is reduced.

The neck type hanging scheme in the technical scheme of the invention is convenient to wear, and the mask (17) can be simply connected with or separated from the air supply channel (18) and the exhaust channel (19) by using hands by using the structure of the quick connector (25); the quick fixation of the face mask (17) and the face and the neck can be simply realized by using the structure of the magic tape on the face mask outer wrapping cloth (26). The mask (17) and the mask overwrap (26) are both easily sterilized and cleaned after separation. The technical proposal ensures that the air supply channel (18) and the air exhaust channel (19) are hidden, has beautiful appearance, is similar to a common mask and is easy to accept. If a patient needs to be in the same room at home, the air purification device (1) can be placed at a fixed position such as a bed head and the like, the lengthened air supply channel (18) is communicated with the air exhaust channel (19), and the electric supply charger supplies power to the air purification device, so that the air purification device can be worn for use in sleep, and can still protect the patient from being infected. The mask outer cover cloth (26) can use fabrics and patterns with various colors and textures, and the appearance and personality can be changed by replacing the mask outer cover cloth (26), which is added value beyond health and environmental protection.

If the medical care personnel wear the mask for isolating the virus correctly, even if the medical care personnel are in the high-incidence infection place of a hospital, the medical care personnel do not need to worry about the infection, and the medical care personnel can better protect the health of the patient only by effectively protecting the medical care personnel.

The virus isolation mask can be safely put in and out of a workplace, meet people, take public communication tools and the like without worrying about virus infection when being worn correctly.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention,

figure 2 is a schematic structural diagram of embodiment 2 of the present invention,

figure 3 is a side view of embodiment 3 of the present invention,

figure 4 is a sectional view taken along the line a-a in example 3 of the present invention,

figure 5 is a partial sectional view taken along line B of embodiment 3 of the present invention,

figure 6 is a cross-sectional view taken along the direction C-C in example 3 of the present invention,

FIG. 7 is a sectional view taken in the direction G-G in example 3 of the present invention.

The device comprises an air purification device 1, an active carbon filter screen 2, a disinfection cavity 3, a disinfection cavity 4, an air guide pipe 5, an ultraviolet lamp 6, a partition board 7, a filtering cavity 8, a storage battery bin 9, an air outlet 10, an electric fan 11, a main filter screen 12, a front coarse filter screen 13, a hollow cover plate 14, an electric switch 15, a speed regulation knob 16, a one-way exhaust valve 17, a face mask 18, an air supply channel 19, an exhaust channel 20, an exhaust disinfection cavity 21, an exhaust hole 22, an exhaust air guide pipe 23, a buffer pad 24, a hinge shaft 25, a quick connector 26, a face mask outer cloth 27, a face sealing piece 28, an annular air channel 29, a 0-shaped sealing ring 30, a clamp 31, a spring 32, a limiting rotating shaft 33 and an ultraviolet detection sensor.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

As shown in figure 1, the structure of the mask of embodiment 1 of the invention is a schematic diagram, a virus-isolating mask comprises an air purification device (1), an air supply channel (18) and a mask (17), wherein the mask (17) is suitable for surrounding an oral part or a nostril, an exhaust one-way valve (16) is arranged on the mask, a hollowed-out cover plate (13), a preposed coarse filter screen (12), a main filter screen (11) and an electric fan (10) are sequentially arranged in the shell of the air purification device (1) from outside to inside, the main filter screen (11) is a HEPA filter screen, the electric fan (10) is a centrifugal electric fan, a filtering cavity (7) and a disinfection cavity (3) which are separated by a partition plate (6) and are mutually communicated through an air guide pipe (4) arranged on the main filter screen, an active carbon filter screen (2) is arranged at the connection part of the inside of the disinfection cavity (3) and the air supply channel (18), the other end of the air supply channel (18) is connected with the mask (17), set up 2 ultraviolet lamp (5) relatively in guide duct (4) inside and be a group, set up 2 ultraviolet lamp (5) of group altogether in guide duct (4), set up 1 ultraviolet lamp (5) at filtering cavity (7) top, guide duct (4) air outlet in disinfection cavity (3) corresponds sets up 1 ultraviolet lamp (5), and ultraviolet lamp (5) belong to LED ultraviolet lamp. An ultraviolet light detection sensor (33) is arranged in the disinfection cavity (3). The working process is that, supposing that the outside air contains virus aerosol, the electric fan (10) is a centrifugal electric fan, the air inlet forms negative pressure, the outside air penetrates through the hollow cover plate (13) and the front coarse filter screen (12), large particle pollutants in the air, such as hair and the like, are blocked by the front coarse filter screen (12), the front coarse filter screen (12) is a fiber filter screen capable of being washed, and the pollutants on the front coarse filter screen can be periodically taken down and backwashed by water, and can be reused after being dried in the air.

Air is blown out from an air outlet (9) of the electric fan (10) after passing through the preposed coarse filter screen (12), the air blowing direction of the air outlet (9) is consistent with the rotation direction of the electric fan (10), so that air flow rotates at high speed in the filter cavity (7) by taking the axis of the electric fan (10) as the center, an air inlet of the air guide pipe (4) is arranged at the position near the axis of the electric fan (10), viruses and attached particles are heavier than the air and tend to float away from the air inlet area of the air guide pipe (4), thus the irradiation time of the ultraviolet lamp (5) is prolonged, the air outlet of the air guide pipe (4) is arranged to blow downwards, the air flow is designed to spirally rise in the disinfection cavity (3), and the irradiation time of the viruses in the air can also be prolonged.

Because the effective irradiation angle of the LED ultraviolet lamp (5) is 130 degrees, if the ultraviolet lamp (5) is arranged in the air guide pipe (4) independently, dead angles which cannot be irradiated exist, viruses are possibly not irradiated, in the embodiment, 2 ultraviolet lamps (5) are oppositely arranged to form a group, dead angles which cannot be irradiated exist in the air guide pipe (4) through which the viruses need to pass are not formed, and 2 groups of ultraviolet lamps (5) are installed for the sake of safety.

The air guide pipe (4) is made of quartz glass material, namely, the ultraviolet lamp (5) can kill viruses in the air passing through the air guide pipe (4), and simultaneously the ultraviolet rays of the ultraviolet lamp (5) can permeate the air guide pipe (4) to kill the viruses in the air in the filtering cavity (7) and the disinfecting cavity (3).

The selection of the power and the quantity of the ultraviolet lamp (5) is selected by actual measurement according to the types of the bacteria and viruses which are mainly required to be inactivated, and the specific design also considers the allowance left by the attenuation period of the ultraviolet lamp (5). The 100% inactivated virus in the invention refers to new coronavirus, rotavirus, influenza virus, hepatitis B virus and the like. For example, at an intensity of 30 mw/cm of UV radiation, the time for 100% inactivation of new coronaviruses is 0.5 seconds. In the preferred scheme in the following examples, a single LED deep ultraviolet lamp bead is selected with the power of 12mw and the wavelength of 280nm, and the basic data show that the aim of instantly inactivating the viruses by 100 percent in the mask can be achieved by selecting reasonable air passages and ultraviolet lamp numbers. Under the special condition, if ultraviolet lamp in disinfection cavity (3) breaks down or attenuates, ultraviolet light detection sensor (33) detect that the ultraviolet energy that sends is less than the minimum limit value then can send out trouble and show, just so avoid the gauze mask to wear under the condition that can not completely cut off the virus, for knowing ultraviolet lamp (5) behavior more accurately, also can set up ultraviolet light detection sensor (33) in filtering cavity (7).

Air entering the disinfection cavity (3) has a little peculiar smell because of being irradiated by ultraviolet rays, is changed into air without virus and peculiar smell through the adsorption of the active carbon filter screen (2), is sent into the air supply channel (18) and is continuously sent into the face mask (17), so that micro-positive pressure is formed in the face mask (17), people inhale easily, and the air is discharged out of the face mask from the exhaust one-way valve (16) of the face mask (17) during expiration.

In this embodiment 1, the main filter (11) is selected to be an HEPA filter, and the HEPA filter selected by us can filter 99.97% of pollutant particles with 0.3 micron, and filter 100% of pollutant particles with 2.5 micron, that is, haze can filter 100%, and most viruses are about 0.3 micron, which means that most viruses are intercepted on the HEPA filter, and at this time, a special inactivation mode is not needed, and as long as the airflow continuously flows, the viruses will lose activity. A few viruses penetrate through the HEPA filter screen and are inactivated by ultraviolet rays, so that the purpose of effectively isolating the viruses can be realized. Through the adsorption of the activated carbon filter screen (2), the toxic gas in the common automobile exhaust in the air can be effectively adsorbed.

This embodiment 1 considers the difference in air volume demand, such as the difference in demand between adults and children, the difference in air volume demand between sports and quiet, and the difference in air volume demand between winter and summer. According to the air quantity demand difference, a user can adjust the rotating speed of the electric fan (10) in a stepless manner by adjusting a speed adjusting knob (15) on an electronic control device connected with the electric fan (10) so as to control the proper air quantity.

The air purification device (1) in the embodiment 1 can be fixed on the arm, and the silica gel corrugated pipe is used as an air supply channel (18) to be communicated with the mask (17).

Referring to fig. 2, which is a schematic structural view of embodiment 2 of the present invention, the air inside the mask (17) of the air purification apparatus (1) of embodiment 1 is discharged out of the mask through the exhaust check valve (16) provided thereon, which is not problematic for a healthy user, but may spread viruses into the air to harm others for a patient. To compensate for this deficiency, example 2 is designed to subject the exhaust gas from the human being to UV disinfection.

In this embodiment 2, on the basis of embodiment 1, an exhaust sterilization cavity (20) is further disposed in the air purification apparatus (1), an exhaust guide duct (22) is disposed in the exhaust sterilization cavity (20), one end of the exhaust guide duct (22) is communicated with an exhaust passage (19), the other end of the exhaust guide duct (22) is communicated with the exhaust sterilization cavity (20), the exhaust guide duct (22) is made of transparent quartz glass, 2 ultraviolet lamps (5) are oppositely disposed in the exhaust guide duct (22) to form a group, 2 groups of ultraviolet lamps (5) are disposed in the exhaust guide duct (22), one end of the exhaust guide duct (22) in the exhaust sterilization cavity (20) is disposed downward, an exhaust hole (21) disposed on the wall of the exhaust sterilization cavity (20) and communicated with the external environment is far away, one ultraviolet lamp (5) is disposed on the inner wall of the opposite exhaust sterilization cavity (20), an ultraviolet light detection sensor (33) is arranged in the exhaust disinfection cavity (20), and the exhaust channel (19) is connected with a one-way exhaust valve (16) arranged on the face mask (17).

In embodiment 2, when a person exhales, the one-way exhaust valve (16) on the mask (17) is turned on, the exhaust gas enters the exhaust channel (19) and enters the exhaust air guide pipe (22), the exhaust air guide pipe (22) is provided with 2 groups of ultraviolet lamps (5), the exhaust gas passes through the 2 groups of ultraviolet lamps (5) and then is exhausted to the bottom of the exhaust disinfection cavity (20) through the lower port of the exhaust air guide pipe (22), the gas in the exhaust disinfection cavity (20) is rotated and ascended at the outlet position and direction of the exhaust air guide pipe (22), the time for the ultraviolet lamps (5) to sterilize the exhaust gas is increased, finally the exhaust gas passes through the exhaust holes (21) and is exhausted to the external environment, and at this time, the virus in the exhaust gas is inactivated by 100%.

The exhaust gas is also sterilized by ultraviolet rays, and another advantage is that the user does not inhale polluted air without killing viruses in case of failure of the one-way exhaust valve (16).

The air purification device (1) in the embodiment 2 can be carried on the back in a backpack form, and a silica gel corrugated pipe is used as an air supply channel (18) and an exhaust channel (19) to communicate with the face mask (17). Because the shoulders are heavily loaded, this example 2 is suitable for workers and other people who need to wear them for a long time. Is favorable for expanding the capacity of the storage battery and prolonging the working time. If the mask is additionally provided with goggles or designed to be in a helmet type, the mask is more suitable for professional workers in the medical field.

As shown in fig. 3, 4, 5, 6 and 7, in embodiment 3 of the present invention, the air purification device (1) is arranged in a symmetrical semi-ring shape and hung on the neck of a user, the electric fan (10) is arranged in the middle of the air purification device (1), one adjacent surface is connected with the filtering cavity (7) and the disinfecting cavity (3), the upper part of the disinfecting cavity (3) is connected with the quick connector (25), and one end of the air supply channel (18) is connected with the quick connector (25); the other adjacent side of the electric fan (10) is connected with an exhaust disinfection cavity (20), the upper part of the exhaust disinfection cavity (20) is connected with a quick connector (25), and one end of an exhaust channel (19) is connected with the quick connector (25); two main filter screens (11) formed by HEPA filter screens are respectively and symmetrically arranged on one surface of the adjacent disinfection cavity (3) and one surface of the adjacent exhaust disinfection cavity (20); the 2 symmetrical storage battery bins (8) are connected to two ends of a semicircular shape of the air purification device (1) through 2 hinge shafts (24) to form a circumferential annular body with a chest opening, a cushion pad (23) made of elastic materials is arranged on the inner annular surface of the air purification device (1), an annular air passage (28) communicating an air inlet of the electric fan (10) with the inner surface of the main filter screen (11) is arranged in the air purification device (1), and 2 groups of ultraviolet lamps (5) are symmetrically arranged inside the annular air passage (28).

The biggest part of weight is 2 symmetry battery storehouses (8) among air purification device (1), connect at air purification device (1) semiannular both ends through 2 articulated axle (24), electric fan (10) weight is not big, other main filter screen (11) are equivalent to the paper structure, filter cavity (7), disinfection cavity (3), exhaust disinfection cavity (20) are the plastic construction cavity body of matter light, such loop configuration is stable in the aspect of the counter weight, rethread 2 symmetry battery storehouses (8) are pressed from both sides to the centre, just by relatively fixed at people's neck, the weight of air purification device (1) is born by the neck, do not influence the fixed of face guard (17), because people's neck can bear heavier thing of hanging, so this example battery can increase power. And 2 symmetrical storage battery bins (8) are also arranged, so that batteries with less power can be replaced under the condition of no shutdown, and if the standby batteries have enough quantity, the mask can continuously work without shutdown.

In order to reduce the working noise of the electric fan (10), a hollow cover plate (13), a front coarse filter screen (12) and a main filter screen (11) are arranged from outside to inside for blocking, so that the noise transmitted out by the electric fan (10) can be effectively reduced. The buffer pad (23) is an elastic net body made of high-elasticity polymer materials, the structure can effectively buffer the vibration caused by the high-speed rotation of the electric fan (10) due to the high-elasticity polymer material plastic wires, and the material can be washed by water, is particularly breathable and is suitable for skin-friendly contact.

In this compact space, set up two HEPA filter screens and be main filter screen (11), folding filter screen has increased total filter screen area, make the filter screen change cycle extension, can filter 0.3 micron's pollutant particle 99.97%, the air passes through annular air flue (28) after main filter screen (11) filters, set up 2 groups of ultraviolet lamp (5) in annular air flue (28) inside symmetry and carry out the virus inactivation, the air passes through electric fan (10) after, at filtration cavity (7), disinfection cavity (3) are repeated to carry out the virus inactivation with ultraviolet lamp, ensure ultraviolet intensity and length of time like this. Therefore, the device is compact in structure, the virus inactivation rate can reach 100%, haze can be eliminated by 100%, and toxic gas in common automobile exhaust in the air can be effectively adsorbed by adsorption of the activated carbon filter screen (2).

The face mask (17) is connected with a face sealing element (27), the face sealing element (27) is made of silica gel, the shape of the face mask is matched with the international standard head model face shape and surrounds the mouth and nostrils of a human face, a breathing cavity is formed by the face mask (17) and the face mask, the face mask (17) is symmetrically and separately connected with a quick-plug connector (25), the quick-plug connector (25) is respectively connected with an air supply channel (18) and an air exhaust channel (19), the quick-plug connector (25) connected with the air exhaust channel (19) is also connected with a one-way exhaust valve (16), magic tapes are arranged at D positions of face mask outer wrapping cloth (26), and the magic tapes are correspondingly arranged at D positions of the face mask (17), so that the face mask (17) and the face mask outer wrapping cloth (26) can be detached and connected; the E position of the outer cloth (26) of the face mask is provided with magic tapes which are respectively detachable and connected with the air supply channel (18) and the exhaust channel (19) at the corresponding E position, and the F position of the outer cloth (26) of the face mask is provided with a detachable and connected magic tape.

The wearing process of the virus-isolation type mask in the embodiment is simple and convenient, namely, the annular air purification device (1) connected with the air supply channel (18) and the air exhaust channel (19) is hung on the neck of a user, then the opening and closing degrees of 2 symmetrical storage battery bins (8) are adjusted so as to clamp the neck moderately, then the air supply channel (18) and the air exhaust channel (19) formed by the ribbon-shaped silicone tube are respectively inserted into the mask (17) to be symmetrically and separately connected with the quick plug connectors (25), the mask outer wrapping cloth (26) is adhered to the D position of the mask (17) by the magic tapes, the mask outer wrapping cloth (26) is adhered to the air supply channel (18) and the air exhaust channel (19) at the corresponding E position, the two ends of the mask outer wrapping cloth (26) can be tensioned by two hands to be adhered to the back position of the neck by the F position magic tapes, the sealing piece (27) is tightly adhered to surround the mouth and the nostril of the human face, and the sealing piece (27) is made of silica gel, the mask has good fitting property and skin-friendly property, so that the mask (17) is indirectly fixed on the face, and the mask (17) has simple structure, light weight and reliable fixation, and does not influence the head action. When the mask is released, the above operation may be reversed. Because the outer cloth (26) of the face mask and the face mask (17) can be detached, the clips (30) at the ports of the air supply channel (18) and the air exhaust channel (19) are pressed by one hand, the compression springs (31) of the clips (30) rotate around the limiting rotating shafts (32), the barb structures of the clips (30) are outwards opened, the inverted cone annular structures arranged on the outer circle of the quick-connection connector (25) are released, the air supply channel (18) and the air exhaust channel (19) can be pulled out, and the structure can be easily inserted and pulled out by hand. The mask (17) and the mask overwrap (26) are both easily sterilized and cleaned after separation. The mask outer cover cloth (26) can use fabrics and patterns with various colors and textures, and changes of image and individual appeal are realized by replacing the mask outer cover cloth (26), which is added value beyond health and environmental protection.

Claims

1. A virus-resistant mask comprising an air cleaning device (1), an air supply passage (18) and a face mask (17), said face mask (17) being adapted to substantially surround at least one of the mouth or nostrils and being provided with an exhaust check valve (16), said air cleaning device (1) being adapted to receive unfiltered air from the surrounding environment, said unfiltered air being filtered by a main filter (11) provided in said air cleaning device (1) and to provide filtered air to said face mask (17) through said air supply passage (18), the air cleaning device (1) being integrally provided with the air supply passage (18) and the face mask (17), or the air cleaning device (1) and said face mask (17) being separate from each other and connected by the air supply passage (18) and being secured to the neck, back, arms or waist of a user by securing means, characterized in that said air cleaning device (1) is provided in a housing, or one or more than one ultraviolet lamp (5) is arranged in the air supply channel (18) or the face mask (17), and the ultraviolet lamps (5) are electrically connected with the storage battery in the storage battery bin (8) and the electric switch (14) in sequence.

2. The mask according to claim 1, wherein the mask further comprises: the air purification device is characterized in that a hollow cover plate (13), a main filter screen (11) and an electric fan (10) are arranged in a shell of the air purification device (1) from outside to inside, one or more ultraviolet lamps (5) are arranged in an inner cavity between the main filter screen (11) and an air supply channel (18) connected with the air purification device (1) or in the air supply channel (18), and the ultraviolet lamps (5) are LED ultraviolet lamps.

3. The mask according to claim 2, wherein the mask further comprises: a preposed coarse filter screen (12) is arranged between a hollow cover plate (13) and a main filter screen (11) in a shell of the air purifying device (1), the electric fan (10) is a centrifugal electric fan, the main filter screen (11) is an HEPA filter screen, a filtering cavity (7) and a disinfecting cavity (3) which are separated by a partition plate (6) and are mutually communicated through an air guide pipe (4) on the filtering cavity are arranged in the air purifying device (1), the air guide pipe (4) is made of transparent quartz glass, one end of the air guide pipe (4) in the filtering cavity (7) is arranged to be close to the axial center of the electric fan (10), one end of the air guide pipe (4) in the disinfecting cavity (3) is arranged to be far away from an air supply channel (18), one or more ultraviolet lamps (5) are arranged in the opposite disinfecting cavity (3), and an ultraviolet light detection sensor (33) is respectively arranged in the disinfecting cavity (3) and the filtering cavity (7), the air purification device is characterized in that 2 ultraviolet lamps (5) are oppositely arranged in the air guide pipe (4) to form a group, at least 1 group of ultraviolet lamps (5) are arranged in the air guide pipe (4), one or more ultraviolet lamps (5) are arranged on the wall surface of the filtering cavity (7), an activated carbon filter screen (2) is arranged at the joint of the inside of the disinfecting cavity (3) and the air supply channel (18), a speed regulation knob (15) and a display panel are arranged on the air purification device (1), an electronic control device is sequentially and electrically connected with the electric fan (10), the ultraviolet lamps (5) and an ultraviolet light detection sensor (33), and the direction of an air outlet (9) of the electric fan (10) is arranged to be matched with the rotating direction of the airflow in the filtering cavity (7) and the rotating direction of the electric fan (10).

4. The mask according to claim 3, wherein the mask further comprises: the air purification device (1) is also internally provided with an exhaust disinfection cavity (20), an exhaust air guide pipe (22) is arranged in the exhaust disinfection cavity (20), one end of the exhaust air guide pipe (22) is communicated with an exhaust channel (19), the other end of the exhaust air guide pipe (22) is communicated with the exhaust disinfection cavity (20), the exhaust air guide pipe (22) is made of transparent quartz glass, 2 ultraviolet lamps (5) are oppositely arranged in the exhaust air guide pipe (22) to form a group, at least 1 group of ultraviolet lamps (5) are arranged in the exhaust air guide pipe (22), one end of the exhaust air guide pipe (22) in the exhaust disinfection cavity (20) is arranged to be far away from an exhaust hole (21) which is arranged on the wall of the exhaust disinfection cavity (20) and is communicated with the external environment, one or more than one ultraviolet lamp (5) is arranged on the inner wall of the opposite exhaust disinfection cavity (20), an ultraviolet light detection sensor (33) is arranged on the inner wall of the exhaust disinfection cavity (20), and the exhaust channel (19) is connected with a one-way exhaust valve (16) arranged on the face mask (17).

5. The mask according to claim 4, wherein the mask further comprises: the air purification device (1) is arranged in a symmetrical semi-annular shape and hung on the neck of a user, the electric fan (10) is arranged in the middle of the air purification device (1), the adjacent surface of the air purification device is connected with the filtering cavity (7) and the disinfection cavity (3), the upper part of the disinfection cavity (3) is connected with the quick plug (25), and one end of the air supply channel (18) is connected with the quick plug (25); the other adjacent side of the electric fan (10) is connected with an exhaust disinfection cavity (20), the upper part of the exhaust disinfection cavity (20) is connected with a quick connector (25), and one end of an exhaust channel (19) is connected with the quick connector (25); two main filter screens (11) formed by HEPA filter screens are respectively and symmetrically arranged on one surface of the adjacent disinfection cavity (3) and one surface of the adjacent exhaust disinfection cavity (20); 2 symmetrical storage battery bins (8) are connected to two ends of a semi-ring of the air purification device (1) through 2 hinge shafts (24) to form a circumferential ring body with a chest opening, a cushion pad (23) made of elastic materials is arranged on the inner ring surface of the air purification device (1), an annular air passage (28) communicated with an air inlet of the electric fan (10) and the inner surface of the main filter screen (11) is arranged in the air purification device (1), at least 2 groups of ultraviolet lamps (5) are symmetrically arranged in the annular air passage (28), and ultraviolet light detection sensors (33) are respectively arranged in the disinfection cavity (3), the annular air passage (28), the filter cavity (7) and the exhaust disinfection cavity (20).

6. The mask according to claim 5, wherein the mask further comprises: the mask (17) is connected with a face sealing element (27), the face sealing element (27) is made of silica gel, the shape of the face sealing element is matched with the international standard head model face shape and surrounds the mouth and nostrils of a human face, a breathing cavity is formed by the face mask (17), the face mask (17) is symmetrically and separately connected with a quick-plug connector (25), the quick-plug connector (25) is respectively connected with an air supply channel (18) and an air exhaust channel (19), the quick-plug connector (25) connected with the air exhaust channel (19) is also connected with a one-way exhaust valve (16), magic tapes are arranged at positions D of mask outer wrapping cloth (26), and the magic tapes are correspondingly arranged at positions D of the face mask (17) so that the face mask (17) is detachably connected with the mask outer wrapping cloth (26); the position of the outer cloth (26) E of the face mask is provided with magic tapes which are respectively detachable and connected with the air supply channel (18) and the exhaust channel (19) at the corresponding position E, and the position of the outer cloth (26) of the face mask is provided with the magic tapes which are detachable and connected with each other at the corresponding position F.

7. The mask according to claim 6, wherein the mask further comprises: the cushion pad (23) is an elastic net body made of elastic high polymer materials, the outer cover cloth (26) of the face mask is textile cloth, and the air supply channel (18) and the exhaust channel (19) are made of ribbon-shaped silicone tubes.

8. The mask according to claim 7, wherein the mask further comprises: quick connector (25) excircle set up the inverted cone annular structure, the tip that corresponds air feed channel (18) and exhaust passage (19) of connecting sets up the recess and places sealing washer (29) and realize sealing, still sets up clip (30) by spring (31) and spacing pivot (32) combined action, clip (30) locate to correspond at spacing pivot (32) and set up rotation limit structure, set up the barb structure that prevents quick connector (25) and extract at the head.