WO2021194039A1 - Frontal respiratory protective equipment - Google Patents

Abstract

The present invention relates to frontal respiratory protective equipment. The frontal respiratory protective equipment can comprise: a face part which covers the whole face of a wearer in order to protect the wearer from floating fine dust and floating bacteria in the air and viruses included in droplets or aerosol moisture particles, and which is made from a transparent material so that the wearer can see the outside; a protective equipment frame for covering the entire outer surface of the face part; a silicone face contact part for maintaining watertightness and airtightness when the wearer wears the face part; a first external air connecting part having an intake passage and an exhaust passage in the center thereof so that external air flows into the face part or gas inside the face part is discharged to the outside; and a filter cartridge and an air filter, which are mounted in the first external air connecting part. The air filter provides, at the first external air connecting part of the frontal respiratory protective equipment, air from which floating fine dust and floating bacteria in the external air, droplet or aerosol moisture particles and the like have been filtered out, so that the wearer can be protected from an infectious viral respiratory disease.

Description

full face respirator

The present invention relates to a full-face respiratory protector, particularly by filtering droplets or aerosol moisture particles containing airborne fine dust and airborne bacteria and viruses outside the protective equipment to filter air pollutants (or infectious agents) Respiratory protection function to protect the wearer's respiratory system from It relates to a full-face respirator that supports the function of discharging exhaled gases (carbon dioxide and water vapor) through negative pressure when exhaling during self-breathing of the wearer.

Unlike airborne fine dust and airborne bacteria, which generally deteriorate human respiratory health, viruses are spread together with droplets or aerosol moisture particles, and there are three methods of propagation: direct transmission, contact transmission, and air transmission. is divided into Direct propagation is also called droplet propagation, and it is a method of infecting others through droplets, that is, droplets discharged from a patient's conversation or coughing. The virus spreads by splashing directly into another person's eyes or nose. And contact transmission is spread through physical contact with an intermediate object/person contaminated with the virus contained in the patient's runny nose and droplet water particles. On the other hand, in air propagation, aerosol water particles of 1 μm or less, which are smaller and lighter than droplet water particles, float in the air for a long time without parabolic fall due to gravity in an enclosed space and spread the virus to others.

Therefore, the air filtration filter of the front-type respiratory protection device used in medical, health, and quarantine sites for human respiratory viruses is a virus caused by aerosol moisture particles floating in the air for a long time rather than a parabolic falling droplet moisture particle. High performance is required to protect the wearer from air waves.

In addition, in a situation in which fine dust suspended in the air becomes increasingly severe, there is almost no adequate oxygen supply means to support self-respiration of the elderly and patients with weakened cardiorespiratory function, except in hospitals and hospitals. In order to block the spread of viruses contained in droplets or aerosols, an expensive negative pressure system requires an ambulance or an inpatient room, but it is often difficult to apply it to the field.

The present invention is to solve the above problem by filtering droplets or aerosol moisture particles containing airborne fine dust, airborne bacteria and viruses in the air to protect the wearer's respiratory tract from airborne contaminants (or infectious agents). The purpose is to provide protective gear for protection.

In addition, an object of the present invention is to provide a protective device connected to an external positive pressure generating artificial respirator and a tube as an oxygen supply means for assisting self-respiration of the wearer, such as the elderly and patients with weakened cardiorespiratory function.

In addition, an object of the present invention is to provide a protective device connected to an external negative pressure generating ventilator and a tube to block the surrounding propagation of the virus contained in the exhaled breath of a respiratory virus patient.

In addition, an object of the present invention is to provide a protective device that can transmit air pressure information and temperature and humidity information inside the front-type respiratory protector according to the wearer's respiration volume and the degree of adhesion of the face-contact unit to the outside as sensing data.

The full-face respirator according to an embodiment of the present invention covers the entire face to protect the wearer from airborne fine dust and airborne bacteria and external droplets or aerosol moisture particles, and is transparent so that the wearer can see the outside. When the wearer wears a face part made of a material, the face part is mounted, the face adhesive part surrounding the wearer's face, the entire outer surface of the face part together with the face adhesive part, and water tightness and airtightness are formed inside the protective gear A first filter detachably connected to the protective equipment frame, the first external air connection part formed in the center to introduce external air into the inside of the face part, or to exhaust the wearer's exhaled gas inside the face part to the outside, and the external air connection part may include wealth.

The first filter unit may include a filter cartridge and an air filtration filter.

The first filter unit may be detachable from the first outdoor air connection unit.

The air filtration filter may be laminated in order of a first nonwoven fabric layer, a melt blown synthetic polymer fiber electrostatic filter layer, an activated carbon fiber filtration filter layer, and a second nonwoven fabric layer.

The filter cartridge may include an air filtration filter fixing means, an air filtration filter support means, and an air filtration filter removal hole.

One surface of the air filtration filter fixing means may protrude to fix the filter cartridge to the outer or inner surface of the first outdoor air connection part.

The air filtration filter support means may include an air filtration filter frame and at least one air filtration filter support frame.

The air filtering filter frame has the same shape as the cross section of the air filtering filter and folds the air filtering filter to the circumferential surface of the first outdoor air connection part, and the air filtering filter support frame presses the upper surface of the air filtering filter to receive the air The filtration filter is supported so that it does not move, and the air filtration filter removal hole is formed into an empty space between the air filtration filter frame and the air filtration filter support frame or between the air filtration filter support frame and the air filtration filter support frame to filter the air. When replacing the filter, the air filtration filter can be detached from the filter cartridge by inserting a finger or a predetermined tool into the detachable hole of the air filtration filter and pushing the air filtration filter.

In addition, at least one of the first nonwoven fabric layer and the activated carbon fiber filter layer may be prepared as a dispersion solution in which a copper precursor and a natural polymer are mixed as a solvent, or a dispersion solution in which a copper precursor and a synthetic polymer are mixed as a solvent. can

The face adhesion part may be a conductive silicon material containing copper powder.

A sensor capable of analyzing the sensing data of at least one of air pressure information and temperature and humidity information inside the front-type respiratory protector according to the wearer's breathing volume and the degree of adhesion of the face-adhesive part is mounted inside the face part, and the sensing data can be transmitted to the outside. have.

The air filtration filter may filter at least one of airborne fine dust and airborne bacteria, droplets, or viruses attached to aerosol moisture particles contained in the air sucked in from the outside when the wearer breathes, so as not to flow into the inside.

The first outdoor air connection part has an air duct structure in which an intake passage for introducing external gas into the center and an exhaust passage for discharging the internal gas to the outside are formed in the center, and the air filter filter is the same as the cross-section of the first outdoor air connection part It may have a structure that covers the upper surface of the first outdoor air connection part in a shape.

The first filter unit may further include an air gap cap that is hinged to the upper portion of the filter cartridge, and covers the air filtering filter to prevent external foreign substances from flowing in.

A second outdoor air connection part is formed in the lower part of the full-face type respiratory protector, and the gas inside the full-type respiratory protection apparatus is discharged to the outside through the second outdoor air connection part, or the gas outside the full-type respiratory protector is discharged to the inside. can be imported.

The second outdoor air connection part may include an air vent connection body and an air vent.

The air vent connection body has a hollow cylindrical shape, a thread is formed on the outer surface, and an exhaust valve or an intake valve may be mounted therein.

The air vent has a hollow cylindrical shape with one surface open, and a screw groove corresponding to the screw thread of the air vent connection body may be formed on the inner surface.

The second outdoor air connection part and the air vent may be coupled by rotating the screw groove of the air vent and the screw thread of the air vent connection body.

A second filter unit, which is an e-PTFE membrane filter, may be mounted inside the air vent.

A face part ventilation hole may be formed in the lower part of the face part.

The face part ventilation hole communicates with the exhaust valve or the second intake valve, and the exhaust valve is opened when the wearer exhales to discharge the wearer's exhaled gas from the inside of the front-type respirator to the outside, and when the wearer breathes in is closed to prevent external gas from flowing into the inside of the front-type respirator, and the second intake valve is opened when the wearer breathes in to introduce gas from the outside of the front-type respirator, and when the wearer exhales In the closed, it is possible to discharge the exhaled gas of the wearer to the first external air connection part.

In addition, the front-type respiratory protection device is connected to the air vent connection body with an external positive pressure generating device and a tube, so that oxygen can be supplied through positive pressure during inhalation during self-respiration of the wearer,

By connecting an external negative pressure generating artificial respiration device to the air vent connection body with a tube, it is possible to discharge the wearer's exhaled gas in a state where the negative pressure is formed inside the front-type respiratory protector.

In addition, with the intake valve or exhaust valve installed after removing the air vent, the air pressure information and temperature and humidity information inside the front-type respiratory protector according to the wearer's breathing volume and the degree of close contact with the face are analyzed as sensing data. , it is possible to control the external positive pressure or negative pressure generating ventilation device based on the data.

The full-face respirator may further include a face cover. The face cover is made of a thermoplastic, transparent amorphous (AMORPHOUS) synthetic polymer, PET resin, or a thermoplastic and transparent cover. It may be made of PC (polycarbonate) resin, which is an amorphous (AMORPHOUS) synthetic polymer, or the PC resin may be laminated on the PET resin.

A fixing hole may be formed in a lower portion of the face cover at a position corresponding to the second outdoor air connection part.

It may further include a face part cover fixing means for fixing the face part cover to the face part.

The face part cover fixing means may include a lower fixing part and an upper fixing part for fixing the upper part of the face part cover to the face part.

The lower fixing part may have a through hole through which the face part cover may be fitted to the face part in a clip manner to fix the lower part of the face part, and through which the air vent connection body may pass.

While the air vent and the air vent connection body are spirally coupled through the through hole, the face cover may be closely fixed to the face part.

The upper fixing part may include a fixing pad, a holder, a tripod-type mount, and a screw.

The tripod-type mount may be formed on one surface of the protector frame located on the upper part of the face cover.

The tripod-type mount may be positioned on the upper end of the protective gear frame to fix the holder.

The tripod mount may have a screw through hole, and the screw may pass through the screw through hole.

The holder may fix the fixing pad, the lower part of the holder may move according to the rotation of the screw, and the face cover may be closely fixed through the fixing pad.

In addition, the front-type respiratory protector may further include a sterilization unit including at least one LED for irradiating UV-C wavelength light that can be sterilized by ultraviolet rays.

The sterilizing unit may be attached to the upper end of the holder.

As the holder is moved by the rotation of the screw installed in the tripod-type mount, the sterilization unit is positioned on the air chamber past the upper part of the first outdoor air connection part, and the light irradiated from the LED is the filter cartridge and the first external air connection part. It may be passed through and delivered to the air chamber inside the front-type breathing apparatus.

The full-face respirator may be a full-face snorkeling mask, and the first filter unit may be mounted to an intake portion of the full-face snorkeling mask.

According to an embodiment of the present invention, droplet or aerosol moisture containing fine dust and airborne bacteria and viruses in the outdoor air through the first filter unit composed of a filter cartridge and an air filtration filter connected to the first outdoor air connection unit. There is an advantage of protecting the wearer's respiratory tract from pollutants (or infectious agents) in the air by providing air filtered with particles to the wearer.

In addition, the present invention has the advantage of assisting the wearer's self-respiration by supplying oxygen through positive pressure when the wearer inhales inside the front-type respirator connected by a tube with an external positive pressure generating artificial respiration device.

In addition, the present invention provides a function of discharging exhaled gas (carbon dioxide and water vapor) through negative pressure when the wearer exhales inside the front-type respirator connected by a tube with an external negative pressure generating artificial respirator. Droplets or aerosols discharged from respiratory virus patients It has the advantage of blocking the surrounding spread of the virus contained in the .

In addition, the present invention can be used as a bulletproof protective gear by fixing the face part cover made of a polymer material having a bulletproof function to the outer surface of the protective equipment.

In addition, the present invention has the advantage of being able to monitor by transmitting the air pressure information and temperature and humidity information inside the front-type respirator according to the wearer's breathing volume and the degree of adhesion of the face-adhesive part to the outside as sensing data.

1 shows a side view of a full-face respirator according to an embodiment of the present invention.

Figure 2 shows the front side of the full-face respiratory protector according to an embodiment of the present invention.

Figure 3 shows the internal gas flow of the full-face respirator according to an embodiment of the present invention.

Figure 4 shows a filter cartridge equipped with an air filtration filter according to an embodiment of the present invention.

Figure 5 shows a filter cartridge from which the air filtration filter is removed according to an embodiment of the present invention.

6 is a view illustrating that the first filter unit is connected to the first outdoor air connection unit according to an embodiment of the present invention.

7 is a view showing an upper cross-section of the filter cartridge according to an embodiment of the present invention.

8 shows a stacked structure of an air filtering filter according to an embodiment of the present invention.

Figure 9 shows an air gap cap covering the filter cartridge according to an embodiment of the present invention.

10 is a view showing the configuration of the second outdoor air connection unit according to an embodiment of the present invention.

11 is an air vent connection body according to an embodiment of the present invention.

12 is a view showing the air flow of the exhaust valve according to an embodiment of the present invention.

13 is an air vent equipped with a second filter unit according to an embodiment of the present invention.

14 illustrates a sensor according to an embodiment of the present invention.

15 illustrates a face cover and an air vent according to an embodiment of the present invention.

Figure 16 shows the configuration of the upper fixing means of the face cover according to an embodiment of the present invention.

17 is a view showing an upper fixing means and a sterilizing unit of the face cover according to an embodiment of the present invention.

The face part 10, the first external air connection part 20, the second external air connection part 30, the protective gear frame 40, the face adhesion part 90 according to an embodiment of the present invention. may include. Alternatively, in accordance with an embodiment of the present invention, the front-type respiratory protection device 100 may exclude the second external air connection part 30 .

<Face (10)>

The face portion 10 covers the entire face of the wearer and is made of a transparent material so that the wearer can see the outside. The face part 10 is a transparent thermoplastic and/or amorphous polymer plastic material having an area covering the entire face such as a forehead, eyes, nose, mouth, and chin.

A sensor capable of analyzing the air pressure information, temperature information, and humidity information inside the front-type respirator according to the wearer's respiration volume and the degree of adhesion of the face contact unit 90 is mounted inside the face part 10, and the sensing data can pass It is possible to determine the degree of closure and air leakage of the front-type respiratory protector based on the atmospheric pressure information by receiving the sensing data from the outside of the full-type respiratory protector. In addition, it is possible to determine the wearer's exhalation temperature based on the temperature information. Also, the wearer's comfort level may be determined based on the humidity information.

<Face Adhesive (90)>

Referring to FIG. 3 , the face part 10 is mounted on the face adhesion part 90 . The face contact portion 90 surrounds the wearer's face. In addition, the face adhesion part 90 is made of a conductive silicon material containing copper (Cu) powder, and has the advantage of providing an antibacterial function without sticking to dust in the air.

Referring to FIG. 3 , the face adhesion part 90 may include a first air curtain film 90a , a second air curtain film 90b , and an air chamber 90c .

The first air curtain film 90a is an air curtain film surrounding the wearer's face, and may be made of a conductive silicon material containing the above-described copper (Cu) powder.

Like the first air curtain film 90a, the second air curtain film 90b may be made of a conductive silicon material containing copper (Cu) powder. In addition, the second air curtain film 90b crosses the inner central portion of the face portion 10 to form an air chamber 90c covering the nasal cavity (nose) and oral cavity (mouth) of the wearer. Through this, the watertightness and airtightness of the inside of the front-type respirator 100 can be maintained.

According to an embodiment of the present invention, at least one first intake valve 90d is installed on the upper surface of the second air curtain film 90b, and the first intake valve is installed on the upper surface of the second air curtain film 90b. At least one intake hole (not shown) communicating with the 90d may be installed. The first intake valve 90d smoothly passes intake air flowing in from the first external air connection part 20 to the wearer's nasal cavity (nose) and oral cavity (mouth) in the air chamber 90c through the intake hole (not shown). can supply

The face contact unit 90 receives the sensing data from the power supply device and the sensor for supplying power to the sensor together with the sensor mounted inside the face unit 10, and the device outside the front-type respiratory protection device 100 It may include a communication device that transmits to

<Protection Frame (40)>

The protective gear frame 40 is formed in a structure that surrounds the outer surface of the face adhesion portion (90). In addition, as described above, the face portion 10 is mounted on the face adhesion portion 90 . When the face adhesive part 90 is mounted to the protective gear frame 40 in a state in which the face part 10 is mounted, the inside of the front-type respiratory protector 100 is formed with a sealed structure while watertightness and airtightness can be maintained.

<First outdoor air connection unit 20>

The first outdoor air connection part 20 according to an embodiment of the present invention is an air duct including an intake passage and an exhaust passage, which are passages of the gas outside and the gas inside the front-type respiratory protector 100 . When the wearer breathes in, external air flows into the front-type respiratory protector 100 through the intake passage, and when the wearer exhales, the gas inside the front-type respiratory protector 100 through the exhaust passage is exhausted to the outside air.

When the wearer is inhaling, external air flows into the front-type respiratory protector 100 through the first external air connection unit 20, and when the wearer is exhaling, the exhalation inside the front-type respiratory protector 100 Carbon dioxide and water vapor contained in may be discharged to the outside of the front-type respiratory protection device 100 through the first outdoor air connection (20).

1 to 2 , the first external air connection unit 20 may be disposed on the upper portion of the front-type respiratory protection device 100 . In addition, the first outdoor air connection part 20 may be integrally formed with the protector frame 40 , and may be formed to protrude upward from the upper end of the protector frame 40 .

In addition, the cross-section of the first outdoor air connection part 20 may have an arbitrary geometric shape.

<First filter unit 50>

In the process in which external air is supplied to the wearer of the front-type respiratory protection device 100 through the first outdoor air connection part 20, fine dust and airborne bacteria and viruses attached to droplets or aerosol moisture particles are also included in the outside air. It may be introduced into the front-type respiratory protection device 100 .

In addition, when the wearer exhales in the process of exhaling exhaled gas (carbon dioxide, water vapor) according to the exhalation of the wearer of the front-type respiratory protection device 100 through the first external air connection part 20, the wearer's droplet moisture particles Even if not, the aerosol moisture particles may be discharged to the outside of the full-face respirator 100 .

The present invention provides a filter cartridge 51 detachable to the first outdoor air connection part 20 to prevent the inflow and outflow of fine dust, airborne bacteria, and viruses contained in droplets or aerosol moisture particles in the air flow. It includes a first filter unit 50 including a filtration filter (52).

The first filter unit 50 according to an embodiment of the present invention includes a filter cartridge 51 and an air filtration filter 52 . The first filter unit 50 is mounted so as to cover the upper surface of the first outdoor air connection unit 20, so that airborne fine dust and airborne bacteria and droplets or aerosol moisture particles contained in the air inhaled from the outside when the wearer breathes in. The attached virus can be filtered so that it does not flow into the front-type respiratory protection device 100 . In addition, during exhalation of the wearer, only gas (eg, carbon dioxide and water vapor) purified by filtering aerosol moisture particles that may contain viruses in the wearer's exhalation can be vented and discharged through the first external air connection unit 20 .

<Filter cartridge (51)>

4 is a filter cartridge 51 with an air filtration filter 52 is mounted, FIG. 5 is a filter cartridge 51 not equipped with an air filtration filter 52, and FIG. 6 is mounted on the first outdoor air connection unit 20 is a filter cartridge (51).

The filter cartridge 51 is mounted on the first outdoor air connection part 20 . The filter cartridge 51 has the same geometric shape as that of the upper cross-section of the filter cartridge 51 so that the filter cartridge 51 can cover the first outdoor air connection part 20. .

In addition, the cross-sectional width of the filter cartridge 51 is further spaced apart by the thickness t of the air filtering filter 52 shown in FIG.

The filter cartridge 51 may include an air filtration filter fixing means 51a, an air filtration filter support means 51b, and an air filtration filter removal hole 51c.

Referring to FIG. 5 , one surface of the air filtration filter fixing means 51a protrudes so as to fix the filter cartridge 51 to the outer surface of the first outdoor air connection part 20 .

5 and 7, the air filtration filter support means (51b) may include an air filtration filter frame (51b1) and at least one air filtration filter support frame (51b2).

The air filtration filter frame 51b1 may support the air filtration filter 52 covering the upper surface of the first outdoor air connection part 20 so as not to move along the side surface of the first outdoor air connection part 20 by folding it. In addition, the air filtering filter support frame (51b2) is supported so as not to move by pressing the upper surface of the air filtering filter (52).

The air filtering filter support frame (51b2) is formed to be connected to the air filtering filter frame (51b1). In the process of installing the filter cartridge 51 by covering the upper surface of the first outdoor air connection part 20, which is an air duct, the air filter support frame 51b2 presses the upper surface of the air filter 52 to prevent movement. there. That is, the circumference of the air filtration filter 52 is folded by the air filtration filter frame 51b1 and sandwiched between the side of the first outdoor air connection part that is the air duct and the inner surface of the filter cartridge 51, The upper surface is supported so as not to be moved by being pressed by the air filter support frame (51b2) to prevent the air filtering filter 52 from being detached to the outside when the filter cartridge 51 is mounted to the first outdoor air connection part 20.

Although the air filter filter support frame 51b2 having various geometric shapes is illustrated in FIG. 7 , the present invention is not limited thereto. According to the geometric shape of the cross-section of the filter cartridge 51, one or more air filtration filter support frames 51b2 and one or more air filtration filter removal holes 51c may be formed.

The air filtration filter removal hole 51c is an empty space between the air filtration filter frame 51b1 and the air filtration filter support frame 51b2 or the air filtration filter support frame 51b2 and the air filtration filter support frame 51b2. In the case of replacing the filtration filter 52, insert a detachable means such as a finger or a predetermined tool into the air filtration filter removal hole 51c and push the upper surface of the air filtration filter 52 to filter air in the filter cartridge 51 The filter 52 may be detachable.

In the upper part of FIG. 7 , two air filtration filter support frames 51b2 and a total of three air filtration filter removal holes 51c are shown, but the present invention is not limited thereto. When one (51b2) is formed, a total of two air filtration filter detachment holes (51c) are formed, and when three air filtration filter support frames (51b2) are formed, a total of four air filtration filter detachment holes (51c) are formed. can be formed.

In particular, the filter cartridge 51 of the present invention can be mounted and applied to the intake part of a full-face snorkeling mask to be described later. have an advantage

<Air filter (52)>

Referring to FIG. 8 , the air filtration filter 52 has a first nonwoven fabric layer 52a as an outer skin layer, a second nonwoven fabric layer 52d as a filter layer, and a melt blown synthetic polymer fiber electrostatic filter layer 52b as a filter layer, activated carbon fiber It may include a filtration filter layer (52c). Preferably, the air filtration filter 52 is a melt blown synthetic polymer fiber electrostatic filter layer 52b and an activated carbon fiber filtration filter layer in an outer skin layer composed of a first nonwoven fabric layer 52a and a second nonwoven fabric layer 52d. (52c) may be configured in the form of a sandwich. Here, when the air filtration filter 52 is covered and mounted on the upper surface of the first outdoor air softening unit 20 that is the air duct through the filter cartridge 51, the first nonwoven fabric layer 52a is disposed on the upper surface, and the second nonwoven fabric The layer 52d is in contact with the lower surface. Here, the upper surface refers to the outside air side, and the lower surface refers to the first outdoor air connection part 20 side.

In addition, the air filtration filter 52 may implement double air filtration performance as a filter layer. That is, the electrostatic force of the melt blown synthetic polymer fiber electrostatic filter layer 52b and the physical force of the activated carbon fiber filtration filter layer 52c can filter suspended fine dust excluding gas, airborne bacteria, droplets or viruses attached to water particles in aerosols. have.

That is, airborne fine dust, airborne bacteria, and droplets or aerosol moisture particles have a negative charge value, so they are first filtered by the melt-blown synthetic polymer fiber electrostatic filter layer 52b, and gases such as odors are filtered through the activated carbon fiber filter layer 52c ) can all be filtered.

In addition, the virus contained in the aerosol moisture particles caused by the wearer's exhalation inside the respirator 100 is also filtered by the melt blown synthetic polymer fiber electrostatic filter layer 52b and the activated carbon fiber filter layer 52c, and the first outdoor air Air propagation of the virus through the connection unit 20 can be prevented.

At least one of the first non-woven fabric layer 52a and the activated carbon fiber filtration filter layer 52c is prepared as a dispersion solution in which a synthetic and/or natural polymer is mixed with a copper precursor (Cu+) as a solvent, so that airborne bacteria and droplets or It can provide antibacterial function against viruses attached to aerosol water particles.

Preferably, the shapes of the air filtration filter 52 before being mounted on the filter cartridge 51 have the same geometric shape as the cross-section of the filter cartridge 51, and the upper surface of the first outdoor air connection part 20 can be covered

The width of the air filtration filter 52 may be 1 to 1+4h when the cross-sectional width of the filter cartridge 51 is set to 1. Here, h is the height of the air filter frame (51b1).

<Air gap cap of filter cartridge (53)>

Referring to FIG. 9 , the filter cartridge 51 may further include an air gap cap 53 . The air gap cap 53 is hinged to the upper portion of the filter cartridge 51 and covers the air filtration filter 52 so that external foreign substances such as worms and sand do not enter the front-type respiratory protector 100 inside and External gas can be communicated.

<Second outdoor air connection part 30>

1 to 2 , the second outdoor air connection part 30 may be disposed under the front-type respiratory protection device 100 .

The second outdoor air connection part 30 may discharge the wearer's exhaled gas (carbon dioxide and water vapor) from the inside of the front-type respiratory protector 100 at the lower end of the face part 10 to the outside through the exhaust valve 33a.

According to an embodiment of the present invention, a ventilation hole (not shown) of the face part may be formed in the lower part of the face part 10 . The face part ventilation hole may allow gas inside the face part 10 to be discharged to the outside, or external gas to be introduced into the inside of the face part 10 .

According to an embodiment, the ventilation hole of the face part communicates with the exhaust valve 33a for exhausting the gas inside the front-type respiratory protector 100 to the outside, or the front-type respiratory protector 100 allows the outside gas to flow into the inside. It may communicate with the second intake valve 33b.

1 and 10 , the second outdoor air connection part 30 may include an air vent connection body 31 and an air vent 32 .

< Air vent connection body (31) >

Referring to FIG. 11 , the air vent connection body 31 of the second external air connection part 30 has a cylindrical shape, and an exhaust valve 33a or a second intake valve that is opened only according to a gas flow directed in a specific direction therein. (33b) may be mounted in communication with the ventilation hole. In addition, the outer circumferential surface of the air vent connection body 31 is formed with a screw thread 31a, so that the screw thread 31a and corresponding to the air vent 32 inner circumferential surface are spirally rotated and coupled with a spiral groove (not shown).

As described above, when the exhaust valve 33a is installed, the wearer's exhaled gas (eg, carbon dioxide and water vapor) passes through the facial ventilation hole (not shown) and then passes through the exhaust valve 33a to the front-type respiratory protector. (100) is discharged to the outside.

In addition, referring to FIG. 12 , the exhaust valve 33a is opened upon exhalation of the wearer so that the gas inside the front-type respirator 100 is discharged to the outside, and closed upon inhalation of the wearer, so that the external gas It can be prevented from flowing into the front-type respiratory protection device 100 .

Conversely, the second intake valve 33b is opened when the wearer breathes in, and external gas flows into the front-type respiratory protector 100, and closes when the wearer breathes out, allowing the gas inside the first It can be discharged to the outdoor air connection part (20).

<Air vent (32)>

The air vent 32 has a cylindrical cap shape having an air groove 32a on its upper surface, and its lower surface is opened in a hollow cylindrical shape.

At least one air on the upper surface of the air vent 32 so as to discharge the wearer's exhaled gas from the inside of the front-type respiratory protector to the outside through the exhaust valve 33a and the membrane second filter part 32b to be described later A vent air groove 32a may be formed.

A screw groove corresponding to the screw thread 31a may be formed on the inner circumferential surface of the cylindrical air vent 32 . The screw groove (not shown) of the air vent 32 has a structure corresponding to the screw thread 31a of the main body, and may be connected to the screw thread 31a while helically rotating.

The air vent 32 may include a membrane second filter unit 32b made of an e-PTFE material. The second filter part 32b is manufactured in the same shape as the cross-section of the air vent 32, and is preferably manufactured in a circular shape. The second filter part 32b is mounted on the inner upper surface of the air vent 32 to cover the second outdoor air connection part 30 .

At this time, in the second filter part 32b, which is the membrane filter, the gas contained in the wearer's exhalation discharged from the second outdoor air connection part 30 through the exhaust valve 33a passes, but droplets contained in the wearer's exhalation ( Dropet) and aerosol (Aerosol) form of moisture can be prevented from being discharged to the outside of the front-type respirator 100 .

According to the first embodiment of the present invention, the front-type respiratory protection device 100 of the present invention is a state in which the second external air connection part 30 is covered with the air vent 32, and a medical staff who takes care of a patient infected with a virus or other bacteria , can be worn by non-patients, such as patient guardians and quarantine personnel. At this time, in the case of connecting the air vent 32 equipped with the e-PTFE membrane filter together with the exhaust valve 33a to the air vent connection body 31, moisture in the form of droplets or aerosol from the wearer's oral cavity The gas (water vapor and carbon dioxide) contained in the wearer's exhaled breath is discharged while the particles are not discharged to the outside of the full-face respiratory protector 100, so that the virus contained in the droplets or aerosol is outside of the full-face respiratory protector 100 discharge can be prevented.

In addition, when the non-patient is the wearer, the exhaust valve 33a and the second intake valve 33b are removed. At this time, the external sound passes through the air groove (32a) of the air vent (32) and the second filter part (32b), which is the membrane filter mounted inside the air vent (32), in turn, and then the front-type respiratory protection device (100). ) is transferred to Therefore, the full-face respiratory protector 100 of the present invention can provide a function that allows the wearer of the full-face respiratory protector 100 to communicate with the outside.

According to the second embodiment of the present invention, the wearer may be a patient in the face mask 100 of the present invention, conversely. At this time, the air vent 32 and the exhaust valve 32a may be removed from the air vent connection body 31 . In this case, a positive pressure generating artificial respiration device outside the front-type respiratory protection device 100 is connected to the air vent connection body 31 with the air vent connection body 31 to provide oxygen through positive pressure during inhalation during self-respiration of the wearer. It can support the supply function.

Conversely, in a state in which the air vent 32, the exhaust valve 32a, and the second intake valve 33b are removed, the air vent connection body 31 forms a negative pressure by electric force, such as a portable purification equipment or a fixed purification equipment. It is possible to make the inside of the front-type respiratory protection device 100 in a negative pressure state with a lower pressure than the outside by connecting the external negative pressure generating respirator with a tube . Preferably, when the viral respiratory patient wears the full-face respiratory protector 100 with the inside in a negative pressure state, the entire face of the patient is sealed through the full-face respiratory protector 100 to prevent infection sources from the nasal cavity and oral cavity. By preventing the virus and other substances from being discharged out of the full-face respirator 100, it is not necessary to negatively pressure the entire specific space (eg, a hospital room), thereby reducing the cost and effort required therefor.

According to the third embodiment of the present invention, the air vent 32 may be removed from the air vent connection body 31 and the second intake valve 33b may be installed instead of the exhaust valve 33a. The front-type respiratory protection device 100 equipped with the second intake valve 33b on the air vent connection body 31 from which the air vent 32 has been removed is suitable for assisting the elderly and patients with weakened cardiorespiratory function to self-ventilate. It can be used as a means of supplying oxygen. In this way, when the air vent 32 mounted on the air vent connection body 31 is removed and the second intake valve 33b is installed, when connected with a positive pressure generating respirator outside the protective equipment with a tube, the wearer's self-respiration During inhalation, oxygen through positive pressure flows into the front-type respirator 100, and during exhalation, the second intake valve 33b is closed, and gas (carbon dioxide and water vapor) inside the front-type respirator 100 is closed. is discharged to the first outdoor air connection part 20 of the upper part of the face part.

In addition, in the face portion 10, there is a sensor capable of analyzing the sensing data of at least one of air pressure information and temperature and humidity information inside the front-type respiratory protector according to the wearer's respiration amount and the degree of adhesion of the face contact unit 90. It is possible to provide a positive pressure oxygen supply function for introducing oxygen into the second outdoor air connection part 20 while controlling the operation of the machine to supply an appropriate amount of oxygen to the wearer while analyzing the sensor data that is mounted and transmitted to the outside.

<Face Cover (60)>

According to an embodiment of the present invention, the full-face respiratory protector 100 of the present invention may include a face cover 60 . The face part cover 60 is made of PET resin, which is a transparent amorphous (AMORPHOUS) synthetic polymer with a thermoplastic (Thermoplastic), and can protect the face part of the front-type respirator 100 from contamination or impact damage and scratches. .

In addition, the face cover 60 is made of PC (polycarbonate) resin which is a transparent amorphous (AMORPHOUS) synthetic polymer with a thermoplastic (Thermoplastic) can provide a bulletproof function.

Alternatively, the face cover 60 may provide both a pollution prevention function and a bulletproof function by laminating the PC resin on the PET resin.

Referring to FIG. 15 , the face part cover 60 has a shape corresponding to the face part 10 of the full-face respiratory protector 100 . In addition, the lower portion of the face cover 60 has a fixing hole 61 at a position corresponding to the second outdoor air connection part 30 . Preferably, after inserting the air vent connection body 31 into the fixing hole 61 of the face part cover 60 and the through hole 71a of the lower fixing part 71 to be described later, the air vent connection body 31 and the air vent By screwing (32) in a spiral rotation, the face cover (60) can be fixed. At this time, the air vent 32 may be in a state in which the second filter part 32b is mounted.

<Face part cover fixing means (70)>

According to one embodiment of the present invention, according to FIG. 17 , the front-type respiratory protector 100 may include a face cover fixing means 70 for fixing the face cover 60 to the face part 10 .

1, the face cover fixing means 70 is a lower fixing part 71 for fixing the lower part of the face cover 60 to the face part 10, and the upper part of the face part cover 60 to the face part 10. It may include an upper fixing part 72 for fixing.

Referring to FIG. 2 , a through hole 71a through which the air vent connection body 31 passes may be formed in the lower fixing part 71 . In addition, the lower fixing part 71 may fix the lower part of the face part by inserting the face part cover 60 into the face part 10 in a clip manner.

In addition, while the air vent 32 is helically coupled to the air vent connection body 31 through the face cover fixing hole 61 , the face cover 60 can be more strongly fixed to the face 10 .

16 and 17 , the upper fixing part 72 may include a fixing pad 72a, a holder 72b, a tripod-type mount 72c, and a screw 72d. The fixing pad 72a, the holder 72b, the tripod-type mount 72c, and the screw 72d are disposed on the face part 10 and the face part cover 60 .

The tripod-type mount 72c is formed on one surface of the protector frame 40 located above the face cover 60 and protrudes upward. In some cases, the tripod-type mount 72c may be injection-molded integrally with the protective gear frame 40 .

A first end of the tripod-type mount 72c is connected to the protector frame 40, and a screw through hole is formed at the second end of the tripod-type mount 72c, so that a screw can be inserted thereinto. The tripod-type mount 72c includes three supports, and a hole through which the screw 72d passes may be included in the upper portion of each support. The holder 72b is mounted on a tripod-type mount 72c. The holder 72b may be fitted in a spaced apart portion between the support and the support.

Preferably, the lower part of the holder 72b may move up and down according to the rotation of the screw 72d to closely fix the face part cover 60 to the face part 10 upper part.

In addition, the lower end of the holder 72b may be connected to the fixing pad 72a. A lower portion of the holder 72b may include connecting means for fixing the fixing pad 72a and connecting the fixing pad 72a and the tripod-type mount 72c. A lower portion of the holder 72b may include a fixing frame 72b1 for fixing the fixing pad 72a, and a connection bar 72b2 for connecting the tripod mount 72c and the fixing frame 72b1. have.

As the lower part of the holder 72b is moved by the rotation of the screw 72d, the fixing pad 72a is moved toward the face cover 60 . The fixing pad 72a presses the upper part of the face part cover 60 while moving toward the face part cover 60 so that the face part cover 60 is in close contact with the upper part of the face part 10 to be fixed.

<Sterilization unit (80)>

Referring to FIG. 17 , the sterilization unit 80 of the present invention is an LED 81 irradiating ultraviolet rays of UV-C wavelength, and may be attached to the upper end of the holder 72b. With the rotation of the screw 72d, the upper portion of the holder 72b moves like a seesaw. Accordingly, the sterilization unit 80 passes over the first outdoor air connection part 20, which is the air duct of the front-type respiratory protector 100, and moves to the upper side of the internal air chamber 90c of the front-type respiratory protector 100. can

The sterilization unit 80 may include at least one LED 80a irradiating light capable of UV sterilization. The light irradiated from the LED (80a) passes through the filter cartridge (51) and the first outdoor air connection part (20) and is delivered to the inside of the air chamber (90c) of the front-type respiratory protection device (100), thereby preventing bacteria or viruses from UV rays. (UV-C wavelength) can be sterilized.

The sterilization unit 80 may be charged by receiving household power from a smartphone charger to a smartphone charging terminal such as a USB terminal 80b as a charging means.

In addition, the sterilization unit 80 can be used as a handle when not worn when not irradiated with ultraviolet rays and not charged to prevent contamination of the front-type respirator 100 by the wearer's hand.

<Full-face snorkeling mask>

According to an embodiment of the present invention, the full-face respirator 100 may be a full-face snorkeling mask. The full-face snorkeling mask may cover the entire face of the wearer. In addition, the full-face snorkeling mask includes an intake unit for introducing external air into the mask.

In this way, when the full-face snorkeling mask is used as the full-type respiratory protection device 100, the first filter unit 50 is mounted on the intake part of the full-type snorkeling mask possessed by each home or institution, so that droplets or aerosol By filtering the virus attached to the mask so that it does not enter the inside of the mask, or conversely, by filtering the virus attached to the droplets or aerosol inside the mask from being discharged outside the mask, it is possible to effectively prevent infectious diseases caused by the spread of the virus.

The intake part of the full-face snorkeling mask has a configuration corresponding to the first external air connection part 20 , and all the above-described configurations are equally applied to the full-face snorkeling mask, so a redundant description will be omitted.

Claims (21)

1. A face part that covers the entire face to protect the wearer from fine dust and airborne bacteria in the air, and external droplets or aerosol moisture particles, and is made of a transparent material so that the wearer can see the outside;

   a face-adhesive part that mounts the face part and wraps the wearer's face;

   a protective gear frame that surrounds the entire outer surface of the face part together with the face adhesion part and is watertight and airtight inside the protective gear when worn by the wearer;

   a first external air connection part formed in the center so as to introduce external air into the inside of the face part, or to discharge the wearer's exhaled gas inside the face part to the outside; and

   Comprising a first filter part detachably connected to the outdoor air connection part,

   The first filter unit includes a filter cartridge and an air filtration filter,

   The first filter unit is detachable from the first outdoor air connection unit,

   The air filtration filter is a first non-woven fabric layer, a melt-blown synthetic polymer fiber electrostatic filter layer, an activated carbon fiber filtration filter layer, a second non-woven fabric layer, characterized in that the stacked in the order of the full-type respiratory protection.
2. According to claim 1,

   The filter cartridge includes an air filtration filter fixing means, an air filtration filter support means, and an air filtration filter removal hole,

   One surface of the air filtration filter fixing means protrudes so as to fix the filter cartridge to the outer surface or the inner surface of the first outdoor air connection part,

   The air filtration filter support means includes an air filtration filter frame and at least one air filtration filter support frame,

   The air filtering filter frame has the same shape as the cross section of the air filtering filter and folds the air filtering filter to the circumferential surface of the first outdoor air connection part, and the air filtering filter support frame presses the upper surface of the air filtering filter to receive the air Support the filter so that it does not move,

   The air filtration filter removal hole is an empty space between the air filtration filter frame and the air filtration filter support frame or between the air filtration filter support frame and the air filtration filter support frame. When the air filtration filter is exchanged, the air filtration A front-type respiratory protection device, characterized in that by inserting a finger or a predetermined tool into the filter removal hole as a removal means, push the air filter filter to detach the air filter filter from the filter cartridge.
3. According to claim 1,

   At least one layer of the first nonwoven fabric layer and the activated carbon fiber filter layer is prepared as a dispersion solution in which a copper precursor and a natural polymer are mixed as a solvent, or a dispersion solution in which a copper precursor and a synthetic polymer are mixed as a solvent full-face respirator with
4. According to claim 1,

   The face-adhesive part is a full-face respiratory protector, characterized in that it is made of a conductive silicone material containing copper powder.
5. According to claim 1, wherein the inside of the face part is equipped with a sensor capable of analyzing the sensing data of at least one of air pressure information and temperature and humidity information inside the front-type respiratory protector according to the wearer's respiration volume and the degree of adhesion of the face-adhesive part. Full-face respirator, characterized in that it transmits the sensing data.
6. According to claim 1, wherein the air filtration filter filters at least one of airborne fine dust and airborne bacteria, droplets, or viruses attached to aerosol moisture particles contained in the air sucked in from the outside when the wearer breathes so as not to flow into the inside. A full-face respirator, characterized in that.
7. According to claim 1,

   The first outdoor air connection part is an air duct structure in which an intake passage for introducing an external gas to the inside and an exhaust passage for discharging the internal gas to the outside are formed in the center,

   The air filter filter is a front-type respiratory protector, characterized in that the structure covering the upper surface of the first outdoor air connection portion in the same shape as the cross-section of the first outdoor air connection portion.
8. According to claim 1,

   The first filter unit is hinged to the upper portion of the filter cartridge, the front-type respiratory protector, characterized in that it further comprises an air gap cap to cover the air filtration filter to prevent the inflow of external foreign matter.
9. According to claim 1,

   A second external air connection part is formed in the lower part of the front-type respiratory protection device,

   A full-face respiratory protector, characterized in that the gas inside the full-face respiratory protector is discharged to the outside through the second external air connection part or the gas outside the full-face respiratory protector is introduced to the inside.
10. 10. The method of claim 9,

    The second outdoor air connection unit includes an air vent connection body and an air vent,

    The air vent connection body has a hollow cylindrical shape, a thread is formed on the outer surface, and an exhaust valve or an intake valve is mounted inside,

    The air vent has a hollow cylindrical shape with one surface open, and a screw groove corresponding to the screw thread of the air vent connection body is formed on the inner surface,

    The second external air connection part and the air vent is a front-type respiratory protector, characterized in that the screw groove of the air vent and the screw thread of the air vent connection body are rotated and coupled.
11. 11. The method of claim 10,

    A front-type respiratory protection device, characterized in that a second filter unit, which is a membrane filter made of e-PTFE material, is mounted inside the air vent.
12. 12. The method of claim 11,

    The face part vent hole is formed in the lower part of the face part,

    The face part vent hole communicates with the exhaust valve or the second intake valve,

    The exhaust valve is opened when the wearer exhales to discharge the wearer's exhaled gas from the inside of the front-type respiratory protector to the outside, and is closed when the wearer breathes in, so that the external gas does not flow into the front-type respiratory protector prevent it,

    The second intake valve is opened when the wearer breathes in and introduces gas from the outside of the front-type respirator, and closes when the wearer breathes out, characterized in that it discharges the wearer's exhaled gas to the first external air connection part. Full-face respirator.
13. 13. The method of claim 12,

    The full-face respirator is

    It is possible to supply oxygen through positive pressure during inhalation during self-respiration of the wearer by connecting the air vent connection body with an external positive pressure generating respirator with a tube,

    A front-type respiratory protector, characterized in that by connecting an external negative pressure generating artificial respiration device to the air vent connection body with a tube, the wearer's exhaled gas is discharged in a state where the negative pressure is formed inside the front-type respiratory protector.
14. 14. The method of claim 13,

    After removing the air vent, with the intake valve or exhaust valve installed, the air pressure information and temperature and humidity information inside the front-type respiratory protector according to the wearer's breathing volume and the degree of close contact with the face are analyzed as sensing data, and the A full-face respirator, characterized in that it controls an external positive or negative pressure generating respirator based on data.
15. According to claim 1,

    The full-face respirator further includes a face cover, wherein the face cover is made of a transparent amorphous (AMORPHOUS) synthetic polymer PET resin with a thermoplastic, or a transparent amorphous with a thermoplastic (Thermoplastic) ( AMORPHOUS) synthetic polymer (Polycarbonate) made of PC (polycarbonate) resin, or a full-face respiratory protection device, characterized in that the PC resin is laminated on top of the PET resin.
16. 16. The method of claim 15,

    A front-type respiratory protector, characterized in that a fixing hole is formed at a position corresponding to the second external air connection part at a lower portion of the face cover.
17. [Claim 16] The full-face respirator according to claim 15, further comprising a face cover fixing means for fixing the face cover to the face part.
18. 18. The method of claim 17,

    The face part cover fixing means includes a lower fixing part and an upper fixing part for fixing the upper part of the face part cover to the facial part,

    The lower fixing part

    A through hole through which the air vent connection body can pass is formed to fix the lower part of the face part by fitting the face part cover to the face part in a clip method,

    The front-type respiratory protector, characterized in that the air vent and the air vent connection body are helically coupled through the through hole, and the face cover is closely fixed to the face part.
19. 19. The method of claim 18,

    The upper fixing part includes a fixing pad, a holder, a tripod-type mount, and a screw,

    The tripod-type mount is formed on one surface of the protective gear frame located on the upper part of the face cover,

    The tripod-type mount is located on the top of the protective gear frame to fix the holder,

    The tripod-type mount is formed with a screw through hole,

    The screw passes through the screw through hole,

    The holder fixes the fixing pad,

    The lower part of the holder moves according to the rotation of the screw, and the face part cover is closely fixed through the fixing pad.
20. The method of claim 19, wherein the full-face respirator is

    Further comprising a sterilization unit including at least one LED irradiating light of UV-C wavelength that can be sterilized by ultraviolet rays,

    The sterilization unit is attached to the upper end of the holder,

    As the holder is moved by the rotation of the screw installed in the tripod-type mount, the sterilization unit is positioned above the air chamber past the upper portion of the first outdoor air connection unit,

    The light irradiated from the LED passes through the filter cartridge and the first external air connection part, and is transmitted to the air chamber inside the front-type breathing apparatus.
21. 21. The method according to any one of claims 1 to 20,

    The front-type respiratory protector is a full-type snorkeling mask, and the full-type respiratory protector, characterized in that the first filter unit is mounted on the intake part of the full-type snorkeling mask.

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