CN206413796U - A kind of active blast type air-purifying mask - Google Patents

Abstract

Utility model provides a kind of active blast type air-purifying mask, including mask body；The mask body offers air inlet and gas outlet, filter and fan are provided with the air inlet, so that air enters in the mask body under the driving of the fan through the filter, make the active blast type air-purifying mask that there is air filtering function and active air blowing function, and be convenient for carrying and wear.

Description

A kind of active air supply type air purification mask

technical field

The utility model relates to the technical field of air purification masks, in particular to an active air supply type air purification mask.

Background technique

Harmful substances in the air seriously endanger the health of the wearer. Especially in recent years, air pollution has intensified. Smog has become a major environmental and health problem that humans need to solve urgently. At present, people usually wear masks outdoors or indoors in public places as personal protection. measure.

However, when ordinary masks are worn, there are usually the following problems: First, the filtering of flowing air through the mask mainly depends on the breathing of the wearer's lungs to provide power. The better the filtering effect of the mask, the greater the pressure resistance of the air, which increases the burden of normal breathing. , resulting in poor breathing, especially in the elderly, children and patients with respiratory diseases. Secondly, the water vapor in the exhaled air cannot be discharged quickly, and some of it even condenses inside the mask, causing hot flashes, seriously affecting the wearing comfort, and easily breeding bacteria. In addition, during the inhalation process, negative pressure is generated inside the mask, and the external unfiltered air will be inhaled by the wearer through the gap between the mask and the face, making the actual filtration efficiency of the mask far lower than the material itself claimed by the merchant. Filtration efficiency. Therefore, ordinary masks are not suitable for wearing for a long time, and the filtering effect is limited.

Therefore, small portable air-purifying respirators have appeared on the market, as shown in Figure 1. Fig. 1 is the structural schematic diagram of the air purification mask in the prior art, and this air purification mask comprises mouth mask body 1 ' and air purification device 2 ', and the two are connected by long hose 3 ', and wherein, this air purification device 2 ' comprises shell Body, filter layer and air extraction device, the air extraction device introduces the outside air into the housing, the outside air becomes clean air after being filtered by the filter layer, and the clean air enters the mask body 1' through the air extraction device through the long hose 3'.

However, when the above-mentioned air-purifying mask is worn, the air-purifying device 2' needs to be held or tied on the arm, and the long hose 3' swings with the movement of the wearer's arm during use, thereby dragging the mask body 1', which seriously affects The wearing comfort is improved, and the service life of the long hose 3' is also reduced. Moreover, the long hose 3' will increase the wearer's burden and hinder the wearer's normal actions.

In view of the defects that the above-mentioned air-purifying mask exists, it is urgent to provide an air-purifying mask that is easy to wear.

Utility model content

In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide an active air-supply air purification mask, the air inlet is provided with a fan and a filter device, and the outside air enters the mask body through the filter device driven by the fan. The active air-supply air-purifying mask has an air filtering function and an active air-supply function, and is convenient to carry and wear.

In order to achieve the purpose of the utility model, the utility model provides an active air-supply air purification mask, including a mask body; the mask body is provided with an air inlet and an air outlet, and the air inlet is provided with a filtering device and A fan is used to make air enter the mask body through the filter device driven by the fan.

In this way, in the utility model, the filter device is arranged on the ear-hanging mask, so that it not only has the advantages of being easy to wear and carry, but also has an air purification function. In addition, the wearer wears the active air supply air purification mask At the same time, the fan can provide assistance for the wearer to breathe. At the same time, as the fan continuously passes clean air into the mask body, a certain positive pressure is maintained in the mask body at all times, and the outside air cannot enter through the gaps in the mask body, thereby further ensuring The cleanliness of the air the wearer breathes.

Optionally, the filter device includes an outer electrostatic filter cotton covering the outside of the air inlet.

Optionally, the filter device further includes an inner electrostatic filter cotton covering the inside of the mask body.

Optionally, a one-way valve is provided at the air outlet, and the one-way valve can be opened outward under the action of the internal and external pressure difference, so that the exhaust gas in the mask body is discharged through the one-way valve.

Optionally, an inner fixing part and an outer fixing part are also included, and the two are fitted and connected to each other in the air inlet and the air outlet;

The corresponding positions of the inner fixing part and the outer fixing part are provided with an air inlet through hole and an air outlet through hole, the one-way valve is arranged in the air outlet through hole, and the outer electrostatic filter cotton covers the outer fixing part. The air intake through hole of the component.

Optionally, a number of small holes are opened at the corresponding positions of the external fixing part and the internal fixing part, the small holes corresponding to the air inlets form the air intake through holes, and the small holes corresponding to the outlet The small hole of the air port forms the air outlet through hole.

Optionally, there is a fixing part in the middle of the air outlet hole;

It also includes an elastic valve, the elastic valve is fixed on the fixing part, and can be turned towards the outside of the mask body under the action of the internal and external pressure difference, and the elastic valve is the one-way valve.

Optionally, a purification device housing is also included, and the purification device housing and the external fixing member are fixed at the air intake through hole;

The casing of the purification device has a built-in battery and a control circuit for controlling the working state of the fan.

Optionally, it further includes an outer filter cotton fixing part for fixing the outer electrostatic filter cotton, and the outer filter cotton fixing part is fixed to the housing of the purification device.

Description of drawings

Fig. 1 is the structural representation of air purification mouth mask in the prior art;

Fig. 2 provides the structural representation of the active air-supply type air purification mask of the utility model;

Figure 3 is an exploded view of Figure 2;

Fig. 4 is a schematic structural view of the external fixture in Fig. 3;

Fig. 5 is a schematic structural view of the internal fixture in Fig. 3;

FIG. 6 is a schematic structural diagram of the fan in FIG. 3 .

In Figure 1:

1' mask body, 2' air purification device, 3' long hose.

In Figure 2-6:

1 mask body, 11 air inlets, 12 air outlets;

2 hanging rope, 3 outer electrostatic filter cotton, 4 inner electrostatic filter cotton, 5 purification device shell, 51 outer filter cotton fixing piece, 52 fan, 6 inner fixing piece, 7 outer fixing piece, 8 air intake through hole, 9 air outlet Through hole, 10 fixing parts.

detailed description

In order to make those skilled in the art better understand the technical solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to accompanying drawings 2-6, wherein, Fig. 2 provides the structural representation of the active air-supply type air purification mask described in the utility model; Fig. 3 is the explosion diagram of Fig. 2; Fig. 4 is the structural representation of the external fixing part in Fig. 3 ; FIG. 5 is a schematic diagram of the structure of the internal fixture in FIG. 3 ; FIG. 6 is a schematic diagram of the structure of the fan in FIG. 3 .

In a specific embodiment, the utility model provides an active air-supply air purification mask, as shown in Figure 2 and Figure 3, comprising a mask body 1, the mask body 1 is provided with an air inlet 11 and an air outlet 12 , during use, outside air enters in the mask body 1 through the air inlet 11, and the waste gas exhaled by the wearer is discharged to the outside world through the air outlet 12. In addition, the air inlet 11 is provided with a filter device and a fan 52, as shown in Figure 6, wherein the outside air is filtered into clean air by the filter device, and at the same time, driven by the fan 52, the clean air enters through the air inlet 11. Inside the mask body 1, the wearer breathes.

In this way, in this embodiment, the filter device is arranged on the ear-hanging mask, so that in addition to the advantages of being easy to wear and carry, it also has an air purification function. In addition, the wearer wears the active air-supply air purification mask At the same time, the fan 52 can provide assistance for the wearer's breathing. At the same time, as the fan 52 continuously feeds clean air into the mask body 1, a certain positive pressure is maintained at all times in the mask body 1, and the outside air cannot pass through the gaps in the mask body 1. Enter, thereby further ensuring the cleanliness of the wearer's breathing air.

Specifically, as shown in FIG. 3 , the filter device includes an outer electrostatic filter cotton 3 covering the outside of the air inlet 11 .

The outer electrostatic filter cotton 3 can not only filter large particles in the air, such as pollen, various allergens, etc., and absorb harmful gases such as formaldehyde, but also filter fine particles such as PM2.5 and PM0.5, so as to ensure that they enter the mask body 1 The cleanliness of the air is high.

Further, as shown in Figure 3, the filtering device also includes an inner electrostatic filter cotton 4 covering the inside of the mask body 1, and the inner electrostatic filter cotton 4 can have the same structure as the mask body 1, so that the inner electrostatic filter cotton 4 Can cover the inner surface of the whole mask body 1.

Certainly, the above-mentioned filter device does not necessarily include the inner electrostatic filter cotton 4, and may only include the outer electrostatic filter cotton 3. In this embodiment, the inner electrostatic filter cotton 4 cooperates with the outer electrostatic filter cotton 3, and the two work together to further improve Filtration effect of the filter device.

On the other hand, the air outlet 12 is provided with a one-way valve compatible with the air outlet 12, and the one-way valve can be opened outwards under the effect of the pressure difference inside and outside the mask body 1, so that the wearer in the mask body 1 The exhaled exhaust gas and water vapor are discharged through the one-way valve. At the same time, since the one-way valve cannot be opened inward, it can also prevent unfiltered and purified air from entering the mask body 1 through the one-way valve, thereby further ensuring entry The cleanliness of the air in the mask body 1.

Set in this way, when the active air-supply air-purifying mask is in use, when the outside air enters the mask body 1 through the air inlet 11, the waste gas and water vapor exhaled by the wearer are discharged through the air outlet 12, so that the air in the mask body 1 is always at the same time. In the flowing state, the gas and water vapor exhaled by the wearer can be discharged in time, and the wearer will not feel hot and humid, thereby improving the wearing comfort of the active air-supply air purification mask.

Further, the active air-supply air purification mask also includes an inner fixing part 6 and an outer fixing part 7 arranged at the air inlet 11 and the air outlet 12, as shown in Fig. and the air outlet 12 are connected with each other, and the connection relationship between the two can be various connection methods commonly used in the art, such as clamping, plugging, etc. Therefore, the connection between the inner fixing part 6 and the outer fixing part 7 is different constitute an absolute limitation on the scope of protection of the utility model.

In addition, as shown in Fig. 4 and Fig. 5, the corresponding positions of the inner fixing member 6 and the outer fixing member 7 are provided with an air inlet through hole 8 and an air outlet through hole 9, and the above-mentioned one-way valve is arranged at the air outlet through hole 9, and at the same time , the above-mentioned outer electrostatic filter cotton 3 covers the air intake through hole 8 of the outer fixing member 7 .

It can be understood that the internal fixture 6 and the external fixture 7 in this embodiment fix the above-mentioned one-way valve, the outer electrostatic filter cotton 3 and the inner electrostatic filter cotton 4 on the mask body 1, so that the active air-supply air purification The mask has the functions mentioned above.

Furthermore, a number of small holes are opened at the corresponding positions of the external fixing part 7 and the internal fixing part 6, and the above-mentioned air intake through holes 8 are formed corresponding to the small holes at the air inlet 11, corresponding to the air outlet 12. Each small hole at place forms above-mentioned outlet through-hole 9.

Of course, the above-mentioned air intake through hole 8 and air outlet through hole 9 are not necessarily formed by several small holes, and a through hole structure may also be provided at the corresponding position. However, in this embodiment, the air intake including a plurality of small holes The through hole 8 and the air outlet through hole 9 can improve the uniformity of gas passing through, thereby improving the wearer's comfort.

Further, as shown in Fig. 4 and Fig. 5, the small holes forming the above-mentioned air outlet through holes 9 are radially distributed in the center, that is, a fixed part is formed in the middle of the air outlet through holes 9, and each small hole is centered on the fixed part Outward radiation distribution. At the same time, the active air-supply air purification mask also includes an elastic valve, which is fixed to the fixed part and covers the air outlet through hole 9, and can be turned towards the outside of the mask body 1 under the effect of the air pressure difference inside and outside the mask body 1, Therefore, the elastic valve is the above-mentioned one-way valve.

When the human body wears the active air-supply air purification mask and exhales, the inside of the mask body 1 is positive pressure. At this time, under the action of the pressure difference between the inside and outside of the mask body 1, the elastic valve turns outward, and the exhaust gas exhaled by the wearer And water vapor can be discharged through the above-mentioned air outlet 12. After the discharge, the positive pressure in the mask body 1 disappears, and the elastic valve will return to smoothness through its own elasticity, so that the air outlet 12 is closed, thereby realizing the function of the above-mentioned one-way valve.

Of course, the above-mentioned one-way valve is not necessarily realized by an elastic valve, and it can also be a one-way valve structure commonly used in the field. However, the elastic valve in this embodiment has a simple structure and light weight, which will not increase the active delivery rate. The weight of the wind-type air purification mask ensures wearing comfort, and at the same time, it can also conveniently realize the function of a one-way valve by using the pressure difference between the inside and outside.

Simultaneously, this elastic valve also does not have to be located at the middle part of air outlet through hole 9, also can its one end be fixed on every place on the edge of air outlet through hole 9, at this moment, this elastic valve under the effect of internal and external pressure difference, unfixed one end It can be flipped or curled outward, and can also realize the function of a one-way valve. However, in this embodiment, when the elastic valve is arranged in the middle of the air outlet through hole 9, each edge of the valve can be turned outward, thereby improving the exhaust gas discharge efficiency.

In each of the above embodiments, the active air-supply air purification mask also includes a purifying device housing 5 located at the air inlet 11, and the purifying device housing 5 and the external fixing member 7 are connected to each other on the air inlet 11 side. fixed. At the same time, the housing 5 of the purification device has a built-in battery and a control circuit for controlling the working state of the fan 52 . Wherein, the battery can be a rechargeable battery to increase its service life.

Through the control of the control circuit, the power of the fan 52 can be changed, thereby changing the air intake of the active air-supply air-purifying mask, and the air intake of the fan 52 can be adjusted in real time as required, thereby improving the active air-supply air-purifying mask. adaptability.

When the battery power was insufficient, the fan 52 stopped working. At this time, the wearer's inhalation caused the internal air pressure of the mask body 1 to decrease, forming a negative pressure. Under the effect of the external atmospheric pressure, the outside air entered the mask body 1 inside through the filter device. At this time, the active air-supply air purification mask only has the function of air filtration, but not the active air-supply function. Therefore, the use of the active air-supply air purification mask described in the above embodiments is not limited by batteries.

It should be noted that, in order to provide the installation space for the control circuit and the battery in the purification device housing 5, the purification device housing 5 needs to have a certain volume. In the embodiment described in FIG. 2, the purification device housing 5 extends to the air outlet 12 places, but do not block the air outlet 12, therefore, it should not be considered that the purification device housing 5 in Fig. 2 blocks the air outlet 12, and the purification device housing 5 is only fixed with the external fixture 7 at the air inlet 11 place .

In addition, the above-mentioned outer electrostatic filter cotton 3 is fixed to the outer filter cotton fixing part 51 , and the outer filter cotton fixing part 51 is fixed to the housing 5 of the purification device, so as to protect the outer electrostatic filter cotton 3 .

The mouth mask body 1 and the human face joint are made of latex material to form a closed space inside the mouth mask body 1 . Of course, other materials commonly used in the art may also be used.

A kind of active air-supply type air purification mask provided by the utility model has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present utility model, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.

Claims (8)

1. a kind of active blast type air-purifying mask, including mask body (1)；Characterized in that, the mask body (1) is opened Provided with air inlet (11) and gas outlet (12), air inlet (11) place is provided with filter and fan (52), so that air Enter under the driving of the fan (52) through the filter in the mask body (1), the active blast type air Purifying mouth mask also includes purifier housing (5), purifier housing (5) internal battery and control circuit, for controlling The working condition of the fan (52)；

The filter includes being covered in the outer electrostatic filter pulp (3) on the outside of the air inlet (11).

2. active blast type air-purifying mask according to claim 1, it is characterised in that the filter also includes It is covered in the interior electrostatic filter pulp (4) on the inside of the mask body (1).

3. active blast type air-purifying mask according to claim 1, it is characterised in that gas outlet (12) place is set Check valve is equipped with, the check valve can outwards be opened in the presence of inside and outside differential pressure, so that useless in the mask body (1) Gas is discharged through the check valve.

4. active blast type air-purifying mask according to claim 3, it is characterised in that also including inner fixing member (6) With outer fixture (7), the two connection that cooperated in the air inlet (11) and the gas outlet (12)；

The corresponding position of the inner fixing member (6) and the outer fixture (7) is respectively provided with air through hole (8) and goes out vent hole (9), the check valve goes out vent hole (9) described in, and the outer electrostatic filter pulp (3) covers the air inlet of the outer fixture Through hole (8).

5. active blast type air-purifying mask according to claim 4, it is characterised in that the outer fixture (7) with The correspondence position of the inner fixing member (6) offers some apertures, corresponding to the keyhole formation of the air inlet (11) The air through hole (8), corresponding to going out vent hole (9) described in the keyhole formation of the gas outlet (12).

6. active blast type air-purifying mask according to claim 5, it is characterised in that it is described go out vent hole (9) in Portion has fixed part (10)；

Also include elastic valve, the elastic valve is fixed on the fixed part (10), and can be in the presence of inside and outside differential pressure Towards the mask body (1) outer side to overturn, the elastic valve is the check valve.

7. the active blast type air-purifying mask according to any one of claim 4-6, it is characterised in that the purification Device case (5) is fixed with the outer fixture (7) at the air through hole (8) place.

8. active blast type air-purifying mask according to claim 7, it is characterised in that further comprise being used to fix The outer filter pulp fixture (51) of the outer electrostatic filter pulp (3), the outer filter pulp fixture (51) is fixed on the purifier shell Body (5).