CN211910629U

CN211910629U - Mask

Info

Publication number: CN211910629U
Application number: CN202020295614.8U
Authority: CN
Inventors: 李广锋; 李唐威
Original assignee: Jinan Weiyang Medical Equipment Technology Co ltd; Pharmaceutical Peptide Medical Research Jinan Co ltd
Current assignee: Jinan Weiyang Medical Equipment Technology Co ltd; Pharmaceutical Peptide Medical Research Jinan Co ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-11-13
Anticipated expiration: 2030-03-11

Abstract

The utility model relates to a mask, which comprises a mask body and an elastic band, wherein the mask body comprises a face shell, a face mask, a filter element and a one-way valve; the face shell comprises a one-way valve limiting piece for fixing the one-way valve, a limiting column for positioning the filter element, a filter element limiting piece for fixing the filter element, fixing columns arranged at intervals and air holes; the filter element is provided with a limiting hole matched with the limiting column; the face guard includes with spacing post assorted spacing hole groove, the inlet port that the filter core lid closed, place the boss of check valve and with fixed column assorted grafting hole groove. The utility model discloses be detachable between each spare part and connect, easily the change of filter core and the washing of spare part.

Description

Mask

Technical Field

The utility model relates to an air purification field particularly, relates to a gauze mask.

Background

The mask is used as a protective article commonly used in life and an essential article in disease control work, and the demand of the mask is increasing continuously. In the period of novel coronavirus outbreak, because a plurality of masks are disposable and cannot be recycled, and the supply of various raw materials and the production capacity are insufficient, the masks are robbed in the society, the masks are out of stock in many countries, and the protection of people cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of disposable use of the mask in the prior art, the utility model provides a mask, only need renew cartridge to realize the recycling of mask. The technical scheme is as follows:

the utility model provides a technical scheme that its technical problem adopted is:

a mask comprises a mask body and an elastic band, wherein the mask body comprises a face shell, a face mask, a filter element and a one-way valve;

the face shell comprises a one-way valve limiting piece for fixing the one-way valve, a limiting column for positioning the filter element, a filter element limiting piece for fixing the filter element, fixing columns arranged at intervals and air holes;

the filter element is provided with a limiting hole matched with the limiting column;

the mask comprises a limiting hole groove matched with the limiting column, an air inlet hole covered by the filter element, a boss for placing the one-way valve and an inserting hole groove matched with the fixing column;

wherein, be provided with on the boss the venthole that the check valve lid closed.

Preferably, the check valve is provided with a left-hand thread, and the boss is provided with a fixing hole for the left-hand thread to be buckled in.

Preferably, the outer edge of the face mask is provided with a sealing ring, and the face mask and the sealing ring are integrally formed.

Preferably, waist-shaped holes for the elastic bands to penetrate are symmetrically formed in the two sides of the face shell, and the two ends of each elastic band are connected through buckles.

Preferably, the fixing columns are arranged on the inner side of the outer edge of the face shell at intervals.

Preferably, the filter element limiting pieces are arranged below the limiting columns and two filter element limiting pieces are symmetrically arranged in the middle of the inner side of the face shell.

Preferably, the check valve limiting pieces are arranged on the two symmetrical axes of the filter element limiting pieces and are positioned below the filter element limiting pieces.

Preferably, the bottom of one side of the face shield close to the face shield is provided with a horizontal cutting table, and the boss is arranged above the horizontal cutting table.

Preferably, the mask is made of one of silica gel, rubber and soft plastic.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the one-way valve is positioned on the boss by arranging the left-hand thread on the one-way valve and arranging the fixing hole for the left-hand thread to be buckled on the boss, and the one-way valve is fixed between the face shell and the face mask by the one-way valve limiting sheet arranged on the face shell, so that the sliding of the one-way valve is avoided;

(2) the filter element is fixed between the face shell and the face mask through the filter element limiting sheet on the face shell, so that the filter element is prevented from sliding, and the filter element can be detached and replaced through the structural design;

(3) the utility model arranges the sealing ring on the mask, which prevents the mask and the face of the wearer from forming a gap, and avoids the air from entering the breathing area of the wearer in the mask;

(4) the utility model discloses a be detachable between each spare part and connect, easily the change of filter core and the washing of spare part.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the mask of the present invention;

fig. 2 is an exploded view of the mask body of the present invention;

FIG. 3 is a schematic structural view of the face shell of the present invention;

fig. 4 is a schematic structural view of the mask of the present invention;

FIG. 5 is a schematic structural view of the breather valve of the present invention;

fig. 6 is a schematic view of an assembly structure of the filter element and the face shell of the present invention;

fig. 7 is a front view of the present invention.

In the figure: 1-face mask, 2-one-way valve, 3-filter element, 4-face shell, 5-elastic band, 10-plug hole groove, 11-air inlet hole, 12-boss, 13-limit hole groove, 14-horizontal cutting table, 15-fixing hole, 16-air outlet hole, 17-sealing ring, 20-left buckle, 31-limit hole, 40-fixing column, 41-air vent, 42-waist-shaped hole, 43-filter element limit piece, 44-limit column, 45-one-way valve limit piece and 51-plug buckle.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention. Wherein like reference numerals refer to like parts throughout.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific instances, and furthermore, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-7, a mask comprises a mask body and an elastic band 5, wherein the mask body comprises a face shell 4, a face mask 1, a filter element 3 and a one-way valve 2; the face shell 4 comprises a one-way valve limiting sheet 45 for fixing the one-way valve 2, a limiting column 44 for positioning the filter element 3, a filter element limiting sheet 43 for fixing the filter element 3, fixing columns 40 arranged at intervals and air holes 41; the filter element 3 is provided with a limit hole 31 matched with the limit post 44; the mask 1 comprises a limit hole groove 13 matched with the limit post 44, an air inlet 11 covered by the filter element 3, a boss 12 for placing the one-way valve 2 and an inserting hole groove 10 matched with the fixing post 40; wherein, the boss 12 is provided with an air outlet 16 covered by the one-way valve 2. The check valve 2 is provided with a left-hand thread 20, and the boss 12 is provided with a fixing hole 15 into which the left-hand thread 20 is buckled.

The outer fringe of face guard 1 is provided with sealing washer 17, and face guard 1 and sealing washer 17 integrated into one piece, and the material of face guard 1 is silica gel. The fixing posts 40 are spaced inwardly from the outer edge of the front case 4.

Waist-shaped holes 42 for the elastic bands 5 to penetrate are symmetrically arranged on two sides of the face shell 4, and two ends of the elastic bands 5 are connected through inserting buckles 51.

The filter element limiting sheets 43 are arranged below the limiting columns 44 and are symmetrically arranged in the middle of the inner side of the face shell 4. The check valve limiting pieces 45 are arranged on the symmetry axes of the two filter element limiting pieces 43 and are positioned below the filter element limiting pieces 43.

The bottom of one side of the face mask 1 close to the face mask 4 is provided with a horizontal cutting table 14, and the boss 12 is arranged above the horizontal cutting table 14.

Description of the use and principle of the mask: firstly, the limiting hole 31 of the filter element 3 is aligned with the limiting post 44 (as shown in fig. 6), so that the filter element 3 is positioned on the face shell 4; secondly, inserting the left-hand thread 20 of the check valve 2 into the fixing hole 15 of the boss 12, wherein the check valve 2 is fixed on the boss 12, and the check valve 2 covers the air outlet hole 16 on the boss 12; thirdly, aligning the fixing posts 40 on the face shell 4 with the inserting hole slots 10 on the face mask 1, then inserting and fixing the face shell 4 and the face mask 1 together, and at the moment, finishing the installation of the mask body; finally, the elastic band 5 is inserted into the waist-shaped hole 42, and the mask is fastened and fixed to the head by the buckles 51 at the two ends of the elastic band 5 when the mask is worn.

After the face guard 4 and the face guard 1 are spliced together, the filter element 3 is fixed between the face guard 1 and the face guard 4 by the filter element limiting sheet 43, and the filter element 3 cannot move or slide in the using process of the mask due to the fixing effect of the filter element limiting sheet 43 and the limiting effect of the limiting column 44. The filter element 3 is sized to fit over the air inlet opening 11 in the face mask 1. The outside air enters the breathing area of the wearer through the air inlet hole 11 after passing through the air vent 41 and the filtration of the filter element 3.

After the face shell 4 and the face mask 1 are inserted together, the check valve 2 is fixed on the boss 12 of the face mask 1 by the check valve limiting sheet 45, and the check valve 2 covers the air outlet 16 on the boss 12. The air exhaled by the wearer is exhausted out of the mask through the air outlet 16, the one-way valve 2 and the air vent 41.

The sealing ring 17 is arranged on the face mask 1, so that a gap can be prevented from being formed between the face mask 1 and the face of a wearer, and air is prevented from entering a breathing area of the wearer in the mouth mask.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A mask is characterized by comprising a mask body and an elastic band (5), wherein the mask body comprises a face shell (4), a mask (1), a filter element (3) and a one-way valve (2);

the face shell (4) comprises a one-way valve limiting piece (45) for fixing the one-way valve (2), a limiting column (44) for positioning the filter element (3), a filter element limiting piece (43) for fixing the filter element (3), fixing columns (40) arranged at intervals and air holes (41);

the filter element (3) is provided with a limiting hole (31) matched with the limiting column (44);

the mask (1) comprises a limiting hole groove (13) matched with the limiting column (44), an air inlet hole (11) covered by the filter element (3), a boss (12) for placing the one-way valve (2) and an inserting hole groove (10) matched with the fixing column (40);

wherein, the boss (12) is provided with an air outlet (16) covered by the one-way valve (2).

2. A mask according to claim 1, wherein: the check valve (2) is provided with a left-hand thread (20), and the boss (12) is provided with a fixing hole (15) which is buckled into the left-hand thread (20).

3. A mask according to claim 1, wherein: the outer fringe of face guard (1) is provided with sealing washer (17), face guard (1) with sealing washer (17) integrated into one piece.

4. A mask according to claim 1, wherein: the bilateral symmetry of face-piece (4) is provided with and is used for waist shape hole (42) that elastic cord (5) penetrated, the both ends of elastic cord (5) are passed through eye-splice (51) and are connected.

5. A mask according to claim 1, wherein: the fixing columns (40) are arranged on the inner side of the outer edge of the face shell (4) at intervals.

6. A mask according to claim 1, wherein: the filter element limiting sheets (43) are arranged below the limiting columns (44) and are symmetrically arranged in the middle of the inner side of the face shell (4).

7. A mask according to claim 1, wherein: the check valve limiting pieces (45) are arranged on the symmetry axes of the two filter element limiting pieces (43) and are positioned below the filter element limiting pieces (43).

8. A mask according to claim 1, wherein: the bottom of one side of the face mask (1) close to the face mask (4) is provided with a horizontal cutting table (14), and the boss (12) is arranged above the horizontal cutting table (14).

9. A mask according to claim 1, wherein: the mask (1) is made of one of silica gel, rubber and soft plastic.