CN110680034A

CN110680034A - Inner ring type large filtering gauze mask

Info

Publication number: CN110680034A
Application number: CN201810722237.9A
Authority: CN
Inventors: 华子瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-04
Filing date: 2018-07-04
Publication date: 2020-01-14

Abstract

The invention discloses an inner ring type large filtering mask, which comprises: one-way discharge valve, oronasal mask, keep apart the inner ring, one-way admission valve, banding, support nail, filter mantle, wear the rope, the leading features sets up a plurality of support nails in the inboard of filter mantle, its middle part forms oronasal mask by keeping apart the inner ring, keeps apart the one-way admission valve that sets up on the inner ring and makes the very big filter mantle of area and oronasal mask air one-way continuous, has both improved the waste gas replacement rate and has breathed in easily to simple structure, low in cost, the texture is light and handy, wear comfortable.

Description

Inner ring type large filtering gauze mask

Technical Field

The invention relates to a mask, in particular to an inner ring type large filtering mask, wherein a plurality of supporting nails are arranged on the inner side of a filtering cover, the central part of the filtering cover forms an oral-nasal mask by an isolating inner ring, and a one-way air inlet valve arranged on the isolating inner ring enables the filtering cover with a large area to be in one-way communication with the air of the oral-nasal mask.

Background

There are masks that have been used for thousands of years, why is there not a product that has good filtering performance, can be replaced cleanly, and is worn lightly to date? The principle is simple: the simpler the thing the more difficult it is to innovate.

At present, masks which are strange in a thousand are available on the market, but the masks which really master three core elements of good filtering performance, clean replacement and light and handy wearing are not discovered until now. The gauze mask looks like a large piece of filter cloth, and actually most of the area is tightly attached to the face and plays the role of no filter cloth. The mask has little air filtering amount and is difficult to inhale; the mask with the filter mask has the advantages of complex structure, heavy weight, high manufacturing cost, uncomfortable wearing and inconvenient carrying.

What is there a solution? I discussed below.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a large inner-ring filter mask, which includes: one-way discharge valve, oronasal mask, keep apart inner ring, one-way admission valve, banding, support nail, filter mantle, wear the rope, its characterized in that: the inner side of the filter cover is provided with a plurality of supporting nails, the central part of the filter cover forms an oronasal mask by an isolation inner ring, and a one-way air inlet valve arranged on the isolation inner ring enables the filter cover with a large area to be communicated with the oronasal mask in one way.

Compared with the existing mask in the market, the inner ring type large filtering mask has the following advantages:

firstly, the filter mantle ventilation capacity is big, inhales easily. Although the area of a filter screen of the existing gauze mask is large, most of the filter screen is tightly attached to the face, the filter screen cannot play a role in filtering, only a small suspended area in front of the mouth and the nose plays a role in filtering, the ventilation volume is very limited, so that the gauze mask is difficult to breathe, and the gauze mask is in an anoxic state for a long time after being worn. The filtering cover area of the inner ring type large filtering mouth mask is designed to be large deliberately, ears can be shielded if necessary, and a plurality of supporting nails are arranged on the inner side of the filtering cover, so that a gap is formed between the filtering cover and the face. Therefore, the filter cover has large ventilation area, good ventilation performance and easy air suction.

Secondly, the filtering cover is separated from the mouth-nose cover and is completely replaced. The gauze mask that has the filter screen in the existing market has a lot of drawbacks: the mask cavity of the mask nose is large, a special frame is needed for the filter screen, and the mask has a complex integral structure, a large volume and high cost. The inner ring type large filter mask is characterized in that an isolation inner ring is arranged in a filter mask with a larger area, the volume of the isolation inner mask is set to be approximately matched with the size of a mouth and a nose, and waste gas residue can be reduced to the greatest extent through a one-way exhaust valve, so that the replacement rate is greatly improved.

Thirdly, the filter mask and the mouth-nose mask are of an integrated structure, and the mask is simple in structure, light and handy to wear and low in manufacturing cost. The common gauze mask is pasted on the face in partial area, not only can not filter but also can cover the face without heat dissipation; the mask with the filter screen has poor replacement effect and is heavy and expensive. The large internal ring type filter mask is characterized in that an isolation internal ring is arranged in a filter cover with a larger area, and a plurality of support nails are arranged on the inner side of the filter cover for supporting, so that fresh air can enter conveniently, and heat dissipation of the face is facilitated. Simple structure, light weight, good replacement effect, easy inspiration and comfortable wearing.

Drawings

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic view of an implementation structure of the inner ring type large filter mask of the present invention.

In the figure: 1-one-way exhaust valve, 2-oronasal mask, 3-isolation inner ring, 4-one-way intake valve, 5-edge sealing, 6-support nail, 7-filter cover and 8-wearing rope.

Detailed Description

Fig. 1 shows an embodiment of the large inner ring filter mask of the present invention. The periphery of the filter cover 7 is provided with a sealing edge 5, and the middle part of the filter cover is provided with an isolating inner ring 3. A plurality of support pins 6 are arranged on the inner side of the filter cover 7. The insulating inner ring 3 is made of a gas-impermeable material. The isolating inner ring 3 is provided with a one-way air inlet valve 4 and forms an oronasal mask 2. The one-way exhaust valve 1 is arranged on the oronasal mask 2. The filter cover 7 is provided with a wearing rope 8, so that the sealing edge 5 is tightly sealed with the head of a person.

In the actual production: the larger the design of the filter cover 7, the better, and the ear can be even covered and dust-proof. The contact surface of the supporting nail 6 is properly made large or designed into a bracket shape, so that people can wear the supporting nail comfortably for a long time. The oronasal mask 2 should be designed according to the height of the nose bridge of most people, and if flexible, to match the situation of the nose and mouth of more people. The width of banding 5 is slightly wide and endows elasticity for good to guarantee sealed effect all around and wear the comfort level for a long time.

In actual use, when a person inhales air: negative pressure is formed in the oronasal mask 2 immediately, the one-way exhaust valve 1 is closed, the one-way intake valve 4 is opened, air in the filter mask 7 flows into the oronasal mask 2 immediately, and simultaneously, the filter mask 7 also begins to filter air.

When a person exhales air: positive pressure is formed immediately in the oronasal mask 2, the one-way exhaust valve 1 is opened, and the one-way intake valve 4 is closed. Since the oronasal mask 2 closely conforms to the nose and mouth of a person, there is very little exhaust gas remaining in the oronasal mask 2 when exhalation is complete. Therefore, the exhaust gas accompanied by inhalation is negligible at the next inhalation, thereby greatly improving the replacement rate.

It is needless to say that the large internal ring filter mask of the present invention may be variously changed and modified, and is not limited to the specific configurations of the above embodiments, such as various changes in the structural shapes and mounting positions of the oronasal mask and the filter mask. In summary, the scope of the present internal large filter mask should also include such exchanges, substitutions and modifications as would be apparent to one of ordinary skill in the art.

Claims

1. An inner ring type large filter mask comprising: one-way discharge valve, oronasal mask, keep apart inner ring, one-way admission valve, banding, support nail, filter mantle, wear the rope, its characterized in that: the inner side of the filter cover (7) is provided with a plurality of supporting nails (6), the central part of the filter cover forms an oronasal mask (2) by an isolation inner ring (3), and a one-way air inlet valve (4) arranged on the isolation inner ring (3) enables the filter cover (7) with a large area to be communicated with the oronasal mask (2) in a one-way mode.