KR102222516B1 - Portable Fitering Mask - Google Patents

Abstract

The present invention relates to a portable filtering mask that has a forced air supply structure, so that breathing is easy and a filter effect can be increased. More specifically, the present invention relates to a portable filtering mask comprising: a mask main body which is fixed closely to the user′s face to cover the respirator; a hanging strap for fixing the mask body to the user′s face; an air supply part connected to the mask main body for supplying purified air to the inside the mask body; a filtration part installed in the air supply part to purify the incoming air; and an exhaust port installed in the mask body to discharge exhalation to the outside.

Description

Portable Fitering Mask

The present invention relates to a mask, and more specifically, to a portable filtration mask, which is economical, which is easy to breathe and can increase a filter effect by having a forced air supply structure.

Yellow dust, fine dust or ultrafine dust threatens our health. Fine dust or ultrafine dust is not filtered with a general mask because the particle size is small. So, in order to properly defend against fine dust, it is necessary to use certified masks, and these masks are usually one-off and have a high price.

Therefore, the use of a mask for blocking fine dust often becomes a burden in terms of cost. In general, a mask filters the air that passes through the mask and enters the respirator according to inhalation, and the exhalation must pass. In other words, it is uncomfortable to breathe because there is no choice but to develop resistance to breathing.

In addition, when moisture condenses on the mask by breathing, the mask's fine dust blocking effect decreases rapidly. Therefore, the life of one fine dust blocking mask is inevitably shortened.

As such, the conventional mask for blocking fine dust has a problem of being difficult to breathe and a problem of high cost due to frequent replacement.

For this reason, a fine dust blocking mask that can be used repeatedly has been proposed. Korean Patent Application Nos. 10-2018-0005331 and 10-2015-0083467 are examples.

These prior arts are inconvenient to breathe due to the pressure applied during breathing, and the filtering effect is degraded by moisture generated during breathing, and water droplets form on the inner surface of the mask by this moisture and have the inconvenience of flowing down.

Korean Patent Application No. 10-2018-0005331 Korean Patent Application No. 10-2015-0083467

For the above problems, an object of the present invention is to provide a portable filtration mask for blocking fine dust that is comfortable to breathe when worn and can reduce the burden on cost. More specifically, the purpose is to provide a portable filtration mask having a high fine dust blocking effect and a forced air supply method.

The above object is a mask body that is in close contact with the user's face so as to cover the respirator; A hook strap for fixing the mask body to the user's face; An air supply unit connected to the mask body and configured to supply purified air into the mask body; It is achieved by a mask for blocking fine dust, characterized in that it comprises a; a filtering unit installed in the air supply unit to purify the incoming air.

According to another feature of the present invention, the air supply unit may include a blower fan driven by a portable battery; A fan housing in which the blowing fan is built-in; A battery case containing a battery; A supply pipe having one end connected to the fan housing and the other end connected to the mask body; An air vent fixed to the inner surface of the mask body and connected to the supply pipe to allow air to be discharged into the mask body.

In addition, the filtering unit may include a filter installed at the air inlet side of the fan housing.

According to another feature of the present invention, the mask body is provided with an exhaust port to allow exhalation to be discharged to the outside, and the exhaust port may be provided with a check valve to allow air to pass through it in one direction.

According to another feature of the present invention, the filtering unit includes a filter installed at the air inlet side of the fan housing in which the blowing fan is built; The filter may be installed to be replaceable.

According to another feature of the present invention, the exhaust port; The inlet end is installed on the inner surface of the mask body, and the discharge end may include an exhaust tube installed outside the mask body by extending along the upper end of the mask body and a hook strap.

According to the above configuration, the air is forcibly supplied to the inside of the mask by the blowing fan, so that the user does not receive resistance during breathing, so that the breathing is comfortable. In addition, since breathing does not directly contact the filter, there is no problem of shortening the life of the filter by adsorbing moisture. After all, breathing is comfortable, the life of the filter is extended, and a mask for blocking fine dust is provided, which is economical because it can be used repeatedly.

The mask for blocking fine dust according to the present invention can be usefully used to prevent the spread of viruses such as MERS by being used in places where many people gather, such as subways, bus waiting rooms, and airports.

1 is a perspective view of a portable filtration mask according to an embodiment of the present invention.
2 is a block diagram of an air supply unit of a portable filtration mask according to an embodiment of the present invention.
3 is a cross-sectional view of a wearing state of a portable filtration mask according to an embodiment of the present invention.
4 is a block diagram of a blower fan for a portable filtration mask according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings in the specification. It will be described with reference to Fig. 1 basically, and Figs. 2 to 6 will be cited where necessary.

The portable filter mask for blocking fine dust according to the present invention includes a mask body 10, a hook strap 11, an air supply unit 20, and a filter unit.

The mask body 10 is closely fixed to the user's face so as to cover the user's respirator like a general mask. The material of the mask body 10 may be variously selected. Since it is desirable to be able to use it repeatedly, it is desirable that it is made of a material that has durability and is easy to clean.

Hook straps 11 are installed on both sides of the mask body 10 to fix the mask body 10 to the user's face.

The air supply unit 20 is connected to the mask body 10. The air supply unit 20 is for supplying purified air to the inner space of the mask body 10, that is, a space between the mask body 10 and the user's face. A filtering unit for purifying the incoming air is installed in the air supply unit 20. The filter unit allows the user to drink air in a state in which fine dust or the like has been purified.

According to an embodiment of the present invention, the air supply unit includes a blowing fan 26 rotated by a motor 28 driven by a rechargeable battery B, and a fan housing 21 in which the blowing fan 26 and the motor 28 are embedded. ), a battery case 23 containing a battery B and a circuit board 29, and a supply pipe 30 having one end connected to the blowing fan 26 and the other end connected to the mask body. The fan housing 21 and the battery case 23 have an elongated rectangular shape for convenient insertion into a pocket, and are detachably installed for battery replacement. The on-off switch 24 may be installed in the battery case 23. The battery may be rechargeable, and for this purpose, the charging port 25 may be installed in the fan housing 21 or the battery case 23. The fan housing 21 is installed in the discharge pipe 21a on the side of the fan housing 21 so that the purified air is supplied to the mask body.

As shown, four batteries B are inserted into the battery case 23. The motor 26 is driven using two batteries B, and when the electromotive force of the pair of batteries B decreases, the motor 26 may be continuously driven with the remaining two batteries B. Therefore, it is possible to continuously start the blowing fan 26 for about 5 to 6 hours.

According to an embodiment of the present invention, it includes an air vent 40 installed in the mask body 10. The air vent 40 is a nozzle means for discharging air into the mask body 10. The air vent 40 diffuses air and prevents air from being intensively supplied to one point in the body. To this end, as shown in FIG. 2, the air vent 40 is in the form of a case with a large area, and a plurality of ejection holes 41 are distributed on the front surface thereof. The air vent 40 is provided in a central portion of the mask body, more preferably to be biased to the lower side. If the air vent 40 occupies the entire lower half of the mask body in a general shape, and is provided to have the same appearance as the mask body, it will be good in appearance. Accordingly, the air introduced through the lower portion of the mask body is allowed to flow out through the upper portion of the mask body through breathing.

The supply pipe 30 is connected to enable separation from the mask body 10 and the fan housing 21. The supply pipe 30 is a flexible tube body and may be provided with a clip or the like for fixing to the user's clothing.

According to an embodiment of the present invention, the mask body 10 is provided with an exhaust port 50 to allow exhalation to be discharged to the outside. A check valve is installed in the exhaust port 50 so that air can pass only in one direction, that is, in the direction in which it is discharged. The exhaust port 50 may be provided on both left and right sides of the mask body as shown in FIG. 1. It is consideration for exhalation and inhalation to have fluidity in one direction inside the mask body 10.

The filtering unit may include a filter 27 installed on the air inlet 22 side of the fan housing 21 (see FIG. 4). The filter 27 may be installed to be replaceable depending on the degree of use. The blowing fan 26 has an open structure so that the user can conveniently replace the filter 27.

According to the above configuration, air is introduced in the direction of the arrow W1 through the air inlet 22 and may be supplied to the respirator through the ejection hole 41 of the air vent 40. Exhalation generated by breathing is exhausted to the outside in the direction of the arrow (W3). In other words, breathing becomes easier as inhalation for breathing is forcibly supplied.

In addition, since moisture generated by breathing is not directly applied to the filter 27, the purification ability of the filter is not easily lost.

According to another embodiment of the present invention, the blowing fan 26 may be operated only when the user inhales. The pressure sensor (not shown) detects a change in pressure that occurs the moment the user breathes in, and operates the blowing fan 26. And when exhaling, the pressure inside the mask body 10 will increase, and the pressure sensor can detect this and stop the operation of the blowing fan 26. The pressure sensor may be installed in the mask body 10 or in the fan housing 21.

Hereinafter, another embodiment of the present invention will be described with further reference to FIGS. 5 to 6.

5 shows another embodiment of a method of discharging the breathed air to the outside of the mask. As shown, the exhaust tube 51 is installed above the inner surface of the mask body 10 in a manner similar to that of the spectacle frame. Exhaust tube 51 is installed extending along the hook (11). According to this, the breathed air from the nose naturally flows in through the inlet end 51a of the exhaust tube, and then is discharged to the outside through the outlet end 51b outside along the upper end of the mask body and the hook strap 11. . According to this, since it is installed adjacent to the nose, there is no fogging inside the mask body, and fresh air can always be breathed.

6 illustrates a configuration in which the fan housing 21 and the battery case 23 can be easily separated as another embodiment of the air supply unit 20. The battery case 23 and the fan housing are provided with coupling ports 27a and 27b of various types. A connection terminal 28 is installed on the upper end of the battery case 23. Other reference numerals may refer to the description of the previous embodiment.

This is to make it simpler to charge and reuse the battery B.

Meanwhile, according to another embodiment of the present invention, as shown in FIG. 1, a fragrance 61 for emitting a scent may be further installed. The fragrance 61 is for giving a refreshing feeling and may be installed by being fitted into the fragrance cartridge 60 installed on the outer or inner surface of the mask body 10. The fragrance 61 only needs to be replaced once every few days, and is used selectively.

Those described above are only a few examples based on the technical idea of the present invention. Those skilled in the art will be able to implement various modifications by utilizing the exemplified bar without going beyond the scope of the technical idea of the present invention expressed through the claims. For example, all the embodiments described above may be freely combined and implemented by those skilled in the art, and any combination should be interpreted as being included in the scope of the present invention.

10: mask body 11: hook strap
20: air supply unit 21: fan housing
23: battery case 26: blowing fan
27: filter 30: supply pipe
40: air vent 41: ejection hole
50: exhaust port

Claims (6)

A mask body 10 that is closely fixed to the user's face so as to cover the respirator;
A hook strap 11 for fixing the mask body 10 to the user's face;
An air supply unit 20 connected to the mask body 10 and configured to supply purified air into the mask body 10;
A filtering unit installed in the air supply unit 20 to purify incoming air;
And an exhaust port 50 installed in the mask body 10 to allow exhalation to be discharged to the outside,
The exhaust port 50 is; The inlet end 51a is installed on the upper inner surface of the mask body 10, and the discharge end 51b extends along the upper end of the mask body 10 and the hook strap 11 to the outside of the mask body 10 It includes an exhaust tube 51 installed in,
The air supply unit 20 includes a blowing fan 26 driven by a portable battery; A fan housing 21 in which the blowing fan 26 is embedded; A battery case 23 containing a battery; A supply pipe 30 having one end connected to the fan housing 21 and the other end connected to the mask body 10; An air vent 40 fixed to the inner surface of the mask body 10 and connected to the supply pipe 30 to allow air to be discharged into the mask body 10,
The exhaust port 50 is provided with a check valve so that air can pass in one direction,
The air vent 40 is in the form of a case with a large area, and a plurality of ejection holes are distributed in the front surface thereof;
The air vent 40 is provided to be biased below the central portion of the mask body 10;
The exhaust port 50 is a portable filtration mask, characterized in that installed on both sides of the mask body (10).
The method of claim 1,
A portable mask further comprising a pressure sensor for detecting a change in pressure generated when the user breathes in, and controlling the blower fan 26 to be operated only when the user breathes in.
The method of claim 1,
A portable mask that is installed on the outer or inner surface of the mask body 10 and further comprises a fragrance cartridge 60 in which a fragrance 61 for emitting fragrance is accommodated.
The method of claim 1,
The battery case 23 and the fan housing 21 are detachably provided with coupling ports 27a and 27b, and a connection terminal 28 is installed at the upper end of the battery case 23, and the battery B A portable mask to recharge.
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