CN219460420U - Filter mask used in severe environment - Google Patents

Abstract

The utility model provides a filter mask used in a severe environment, which relates to the technical field of protective masks and comprises a mask body and two ear belts arranged on the mask body, wherein the side edge of the inner layer of the mask body is provided with a metal strip used for being attached to the face of a person, the metal strip is covered with a piece of cloth fixedly connected with the inner layer of the mask body, the outer layer of the piece cloth is provided with filter cotton used for filtering air dust, the outer layer of the piece cloth is provided with breathable cloth for wrapping the filter cotton, the surfaces of the ear belts are provided with a plurality of notches distributed at equal intervals, and the inner layer and the outer layer of the mask body are provided with waterproof films, so that after the mask body is used for a period of time, a cotton pad is taken out and the mask body is cleaned, namely, the mask body can be repeatedly cleaned.

Description

Filter mask used in severe environment

Technical Field

The utility model relates to the technical field of protective masks, in particular to a filter mask used in severe environments.

Background

The cover body is a sanitary epidemic prevention article, generally refers to the air that wears to be used for filtering into mouth nose in mouth nose position to reach the effect that blocks harmful gas, smell, droplets, material such as virus, make with materials such as gauze or paper, the common cover body in market is melt-blown non-woven fabrics and makes, and the cover body hangs on the wearer's ear through the ear rope of both sides, and is provided with the aluminium strip that is used for laminating personnel's bridge of the nose in the cover body, and the leakproofness can be guaranteed to one side that has bridge of the nose aluminium strip in the wearing process.

Wearing the gauze mask can effectually prevent dust and the virus in the air and be inhaled in the physically, but in actual wearing process, other border positions of gauze mask are because not set up the aluminium strip, consequently the gauze mask receives the pulling effect of ear area, its edge can form the fold and produce the gap, lead to the gauze mask unable laminating personnel face, lead to the filter effect of gauze mask in adverse circumstances, for example personnel when coal-winning in open air coal factory, because the wind causes the coal ash to spread in the air, and flood around personnel, the coal ash in the air can directly get into by personnel inhalation oral cavity or nasal cavity along the gap at gauze mask edge.

Disclosure of Invention

The utility model aims to solve the problem that coal ash diffused in an open-air coal plant enters a mask along a gap at the edge of the mask in the prior art and is inhaled into an oral cavity and a nasal cavity by a person, and provides a filter mask used in a severe environment.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a filter mask for under adverse circumstances, includes the cover body and sets up two ear areas on the cover body, cover body inlayer side is provided with the metal strip that is used for laminating personnel face, the metal strip is last to be covered with cover body inlayer fixed connection's fender cloth, the fender cloth outer is provided with and is used for air dust filterable filter pulp, and keeps off the cloth outer and be provided with the ventilative cloth of parcel filter pulp, the ear area surface is provided with a plurality of equidistance breach that distributes, cover body outer both sides upper and lower positions are sewed up respectively and are passed the button of breach.

Further: the cloth is non-woven fabric, and the cloth-blocking edge is fixed on the inner layer of the cover body in a hot-pressing or high-frequency welding mode.

Further: the inner surface and the outer surface of the cover body are covered with waterproof films.

Further: the filter cotton is 3M filter cotton.

Further: the cover body is provided with a hollow plastic part in a penetrating way, two cotton pads are arranged in the hollow plastic part, and the two cotton pads are water vapor absorption cotton for absorbing water vapor and 3M filter cotton for filtering air dust from inside to outside respectively.

Further: the opening of the hollow plastic part faces the face of the person, and the hollow plastic part is hollowed out relative to one side of the opening.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, the shape of the whole trend of the side edge of the cover body is matched with the shape of the face of a wearer by pressing the metal strips and attaching the metal strips, the filter cotton is correspondingly elastically deformed in the process of pressing the metal strips and attaches the face of a person, air passes through the filter cotton when the person inhales, dust in the air is filtered, and the filter cotton is elastically deformed, in the wearing process, the face of the person can move due to speaking, when the face of the person is sunken, the elastically deformed filter cotton can automatically fill the sunken part of the face through elastic reset, so that dust can not enter the cover body in the moving process of the face of the person.

2. According to the utility model, the inner layer and the outer layer of the cover body pass through the waterproof membrane, so that after the cover body is used for a period of time, the cotton pad is taken out and the cover body is cleaned, namely, the cover body can be repeatedly cleaned.

Drawings

Fig. 1 is a schematic perspective view of a filter mask for use in a severe environment according to the present utility model;

fig. 2 is a schematic structural view of a hollow plastic part of a filter mask for use in a severe environment according to the present utility model.

Legend description: 1. a cover body; 2. a button; 3. a metal strip; 4. a cloth blocking; 5. filtering cotton; 6. breathable cloth; 7. a hollow plastic member; 8. ear bands; 9. a notch; 10. cotton pad.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

As shown in fig. 1-2, a filter mask for use in severe environment comprises a mask body 1 and two ear belts 8 arranged on the mask body 1, wherein a metal strip 3 for fitting the face of a person is arranged on the side edge of the inner layer of the mask body 1, a shielding cloth 4 fixedly connected with the inner layer of the mask body 1 is covered on the metal strip 3, filter cotton 5 for filtering air dust is arranged on the outer layer of the shielding cloth 4, ventilation cloth 6 wrapping the filter cotton 5 is arranged on the outer layer of the shielding cloth 4, a plurality of equally-spaced notches 9 are arranged on the surface of the ear belts 8, and buttons 2 penetrating through the notches 9 are respectively sewn at the upper and lower positions of the two sides of the outer layer of the mask body 1.

In the above-mentioned scheme, the metal strip 3 of cover at 1 inlayer edge realizes the fixed position through being connected of fender cloth 4 with the cover 1, and then when wearing the cover 1, through pressing the metal strip 3 and laminating facial cheek, chin and bridge of the nose position, guarantee promptly that the side of the cover 1 is whole to trend the shape and the facial shape of wearer matches, the ventilative cloth 6 of setting is convenient for realize the position installation of filter pulp 5 through being connected with fender cloth 4, the corresponding elastic deformation of filter pulp 5 is realized in the in-process of pressing the metal strip 3 to the filter pulp 5 of setting is convenient for, and laminating personnel's face, personnel is when breathing in, the air is through realizing the filtration of dust in the filter pulp 5, and through the elastic deformation of filter pulp 5, in wearing the in-process, personnel's face is because of speaking causes personnel's facial muscle to remove, when personnel's face is sunken, and then guarantee that personnel's facial muscle can not get into the cover 1 through the breach 9 of corresponding position in the automatic face that passes through button 2, the actual use length of being convenient for of adjusting area 8 is convenient for and then be applicable to different facial dimensions of the cover 1 and the fixed personnel's of face.

Further, as shown in fig. 1: the cloth 4 is non-woven fabrics, and the cloth 4 edge is fixed on the inner layer of the cover body 1 through hot pressing or high frequency welding, and the waterproof membrane is covered on the inner and outer layer surfaces of the cover body 1, and the filter cotton 5 is 3M filter cotton.

By arranging the waterproof membrane on the surfaces of the inner layer and the outer layer of the cover body 1, the air can only enter the cover body 1 through the hollow plastic piece 7 or the filter cotton 5

Further, as shown in fig. 1 and 2: the cover body 1 is provided with a hollow plastic piece 7 in a penetrating manner, two cotton pads 10 are arranged in the hollow plastic piece 7, the two cotton pads 10 are respectively water vapor absorption cotton for absorbing water vapor and 3M filter cotton for filtering air dust from inside to outside, an opening of the hollow plastic piece 7 faces a face of a person, and the hollow plastic piece 7 is hollowed-out relative to one side of the opening.

As shown in fig. 2, the hollow plastic member 7 is located at one end of the inner layer of the cover 1 and extends outwards for a part, and the hollow plastic member 7 is connected to the inner layer of the cover 1 by adhesion, and the water vapor absorption cotton arranged in the hollow plastic member can absorb the water vapor in the air exhaled by the personnel, i.e. the filter cotton 5 and the 3M filter cotton in the hollow plastic member can not be moist due to the moisture in the exhaled air, and the filtering effect is affected.

According to the working principle, according to the head circumference of a wearer, the button 2 passes through the notch 9 at the corresponding position on the ear belt 8, the relative position of the ear belt 8 and the cover body 1 is fixed, the ear belt 8 is hung on the ear, the metal strip 3 is pressed until the metal strip 3 is attached to the face of a person, the filter cotton 5 is compressed in the pressing process, when the person breathes, air enters the cover body 1 from the side edge of the cover body 1 or the hollow plastic piece 7, when the side edge of the cover body 1 passes through, the filter cotton 5 filters dust in the air, when the hollow plastic piece 7 passes through, the 3M filter cotton in the hollow plastic piece 7 filters dust in the air, when the person exhales, the water vapor in the hollow plastic piece 7 absorbs the cotton to absorb the moisture in the exhaled air, and the dryness of the filter cotton 5 and the 3M filter cotton in the cover body 1 is ensured.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (6)

1. A filter mask for use in a harsh environment, characterized in that: including cover body (1) and two ear area (8) of setting on cover body (1), cover body (1) inlayer side is provided with metal strip (3) that are used for laminating personnel's face, metal strip (3) are gone up to be covered with cover body (1) inlayer fixed connection's fender cloth (4), fender cloth (4) inlayer is provided with and is used for air dust filterable filter cotton (5), and fender cloth (4) skin is provided with ventilative cloth (6) of parcel filter cotton (5), ear area (8) surface is provided with breach (9) that a plurality of equidistance distribute, button (2) that pass breach (9) are sewed up respectively to cover body (1) skin both sides upper and lower position.

2. A filter mask for use in harsh environments according to claim 1, wherein: the shielding cloth (4) is non-woven fabric, and the edge of the shielding cloth (4) is fixed on the inner layer of the cover body (1) in a hot-pressing or high-frequency welding mode.

3. A filter mask for use in harsh environments according to claim 1, wherein: the surfaces of the inner layer and the outer layer of the cover body (1) are covered with waterproof films.

4. A filter mask for use in harsh environments according to claim 1, wherein: the filter cotton (5) is 3M filter cotton.

5. A filter mask for use in harsh environments according to claim 1, wherein: the cover body (1) is provided with a hollow plastic part (7) in a penetrating mode, two cotton pads (10) are arranged in the hollow plastic part (7), and the two cotton pads (10) are water vapor absorption cotton for absorbing water vapor and 3M filter cotton for filtering air dust from inside to outside.

6. The filter mask for use in harsh environments according to claim 5, wherein: the opening of the hollow plastic part (7) faces the face of the person, and the hollow plastic part (7) is hollowed out relative to one side of the opening.