CN111466656A

CN111466656A - Cover cloth for reducing air leakage at nose bridge

Info

Publication number: CN111466656A
Application number: CN202010484454.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Huludao Zhiduoduo Technology Co ltd
Current assignee: Huludao Zhiduoduo Technology Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-07-31
Anticipated expiration: 2040-06-01
Also published as: CN111466656B

Abstract

The invention provides cover cloth for reducing air leakage at a nose bridge, which comprises a cover cloth body, wherein a concave cavity is formed after the cover cloth body is unfolded, and the concave cavity is buckled on a face when a mask is worn; still include the spacer install in the cavity will the cavity is separated into nose end chamber and the oral cavity of independent setting, wherein, the spacer is hard material. The spacer is provided with a hole 201. The cover cloth for reducing air leakage at the nose bridge also comprises a one-way blocking sheet which movably covers the hole; when the mouth part exhales, the one-way blocking sheet is pressed on the hole to block the mouth part exhaling from entering the nasal cavity; when the nose exhales or the mouth inhales, an air passage is formed between the one-way blocking sheet and the hole, so that air in the nose end cavity flows to the mouth cavity. The breathing mask has the advantages that after the mask is worn, the breathing is reduced to be discharged from the space between the mask and the nose, and the liquefaction of the surfaces of the spectacle lenses is avoided.

Description

Cover cloth for reducing air leakage at nose bridge

Technical Field

The invention relates to the field of medical appliances, in particular to a cover cloth for reducing air leakage at a nose bridge.

Background

The existing mask is formed by overlapping multiple layers of filter cloth, so that the exhalation diffusion can be blocked while the filtering function is realized, and part of exhaled air is discharged from the mask and the face fitting part. In addition, after the existing mask is worn, the nose and the mouth are placed in the same space. The volume of exhaling is great when the mouth exhales, causes the gauze mask to swell and makes the expiration upwards flow and discharge in a large number from nose and gauze mask laminating department, can cause the surperficial liquefaction of lens to influence the vision when wearing glasses. Accordingly, in view of the foregoing, a cover cloth that reduces air leakage at the bridge of the nose is devised.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the exhalation is reduced and is discharged from the mask and the nose, and the liquefaction of the surface of the spectacle lens is avoided.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the cover cloth capable of reducing air leakage at the nose bridge comprises a cover cloth body, wherein a concave cavity is formed after the cover cloth body is unfolded, and the concave cavity is buckled on the face when the mask is worn; still include the spacer install in the cavity will the cavity is separated into nose end chamber and the oral cavity of independent setting, wherein, the spacer is hard material. The spacer is provided with a hole 201. The cover cloth for reducing air leakage at the nose bridge also comprises a one-way blocking sheet which movably covers the hole; when the mouth part exhales, the one-way blocking sheet is pressed on the hole to block the mouth part exhaling from entering the nasal cavity; when the nose exhales or the mouth inhales, an air passage is formed between the one-way blocking sheet and the hole, so that air in the nose end cavity flows to the mouth cavity.

Preferably, the spacer is detachably attached to the cover cloth body via an attachment portion.

Preferably, the end of the mounting part is arranged on the inner side of the cover cloth body, and the spacer is fixed on the mounting part through a fixed connection part.

Preferably, the fixing part is a slot, and the spacer is inserted into the slot.

Preferably, the fixing part is a hidden button or a sticky button, and the spacer is fixedly connected to the mounting part through the hidden button or the sticky button.

Preferably, the spacer is mounted to the opposite end of the open end of the cover cloth body by a connector, and the spacer is rotated along the axis Y by the connector.

Preferably, the connector is a threaded connector.

Preferably, the mask cloth for reducing air leakage at the bridge of the nose further comprises a baffle plate arranged in the nose cavity, the baffle plate is arranged on the diaphragm along the hole contour, and the baffle plate forms an opening towards the opening direction of the nose cavity.

Preferably, the baffle has a folding structure and can be folded in the direction of the spacer.

Preferably, the baffle is detachably connected with the spacer.

The cover cloth has the beneficial effects that the cover cloth is internally provided with the spacer, and the spacer divides the interior of the cover cloth into two independent cavities. After the mask is worn, the mouth and the nose can be separated and respectively placed in the corresponding independent cavities. And in addition, a unidirectional barrier sheet is arranged on the barrier sheet. The one-way blocking device can be opened through nasal exhalation to enable part of the exhalation to enter the mouth cavity and be discharged, and further the upward discharge of the nasal exhalation is reduced; one-way separation piece is closed when opposite mouth exhales, makes the mouth exhale and can't get into in the nasal cavity in a large number to make the mouth exhale and discharge from gauze mask and face's laminating department, consequently, it upwards to have effectively separated expiration and steam, further reduces to exhale and discharges from nasal part and gauze mask laminating portion, avoids lens surface liquefaction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a cover fabric according to a first embodiment of the present invention;

FIG. 2 is another side schematic view of the structure of FIG. 1;

FIG. 3 is a schematic view of a cover fabric according to a second embodiment of the present invention;

FIG. 4 is a schematic view of the exploded structure of FIG. 3;

FIG. 5 is a view showing the state of the structure of a pressing projection according to the second embodiment of the present invention;

FIG. 6 is a schematic view of a first embodiment of a cover body embodying a mounting portion of the present invention;

FIG. 7 is a schematic view of a second construction of a cover body embodying an attachment portion of the present invention;

in the figure: 100-cover cloth body, 101-concave cavity, 101 a-nose cavity and 101 b-mouth cavity; 101.1-mounting part, 101.1 a-fixing part, 200-spacer, 201-hole, 300-unidirectional barrier sheet, 301-pressing sheet, 302-pressing point, 400-baffle, 500-connecting piece, a-lip edge and Y-axis.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It is to be understood that these examples are for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.

In one embodiment, a mask cloth for reducing air leakage at the bridge of the nose is provided, which comprises a mask cloth body 100, a cavity 101 is formed after the mask cloth body is unfolded, and the cavity 101 is buckled on the face when the mask is worn.

A cover cloth for reducing air leakage at the bridge of the nose also comprises a spacer 200 made of hard material, and the edge of the spacer 200 is provided with a lip edge a. When the mask is worn, the spacer 200 is pressed between the nose and the lip by the lip edge a, and the sealing performance can be improved by the spacer 200. Wherein, the spacer 200 is made of a hard material such as plastic, nylon or cardboard. A nose cavity 101a and a mouth cavity 101b which are arranged in the cavity 101 and divide the cavity 101 into independent arrangement; when the mask is worn, the nose is placed in the nose cavity 101a, and the mouth is placed in the mouth cavity 101 b. Make oral area and nose separate, the advantage is in avoiding the abundant exhaling of oral area to get into the cover cloth top and discharge from the bridge of the nose and cause the lens atomizing, makes the exhaling discharge from the cover cloth lower extreme.

The gap is great by nose and cover cloth connection after the gauze mask is worn, if oral cavity 101b space diminishes, its internal pressure is great when the nose exhales to spacer 200 also can the separation flow direction of exhaling. And the exhalation is still discharged from the connection part of the cover cloth and the nose, namely the connection weak position. Therefore, in order to avoid the above disadvantages, the spacer 200 is provided with the hole 201, and after the mask is worn, the hole 201 is disposed toward and corresponding to the nostril, so that the breath in the nose cavity 101a flows into the mouth cavity 101 b.

In order to avoid the bi-directional flow of breath from mouth and nose, the cover cloth for reducing air leakage at the bridge of the nose further comprises a one-way blocking sheet 300 which movably covers the hole 201; when the mouth part exhales, the one-way blocking sheet 300 is pressed on the hole 201 to block the mouth part exhaling from entering the nose cavity 101 a; when the nose exhales or the mouth inhales, an air passage is formed between the one-way blocking sheet 300 and the hole 201, so that the air in the nose cavity 101a flows to the mouth cavity 101 b. Therefore, the gas can be effectively reduced from being discharged from the connecting part of the cover cloth and the nose.

The unidirectional blocking sheet 300 and the hole 201 adopt the following two specific mounting structures to realize the unidirectional blocking function.

In one embodiment, the unidirectional barrier 300 comprises a rigid sheeting 301, which may be a plastic or paper sheet, for example, to reduce the weight of the mask. The hard pressing sheet 301 is arranged in the mouth cavity 101b, one end of the hard pressing sheet is connected to the spacer 200, and the other end of the hard pressing sheet is arranged in a floating mode and covers the hole 201; when the nose exhales, the pressing sheet 301 swings towards the direction of the oral cavity 101b, so that the pressing sheet 301 and the hole 201 form an air channel, and the nose exhales into the oral cavity 101b through the air channel; on the contrary, when the mouth part exhales, the pressing sheet 301 reversely swings to cover the hole 201 to prevent the mouth part from exhaling into the nose cavity 101a through the pressure of the exhaled air, so that the one-way blocking effect is realized.

In a second embodiment, the one-way barrier 300 comprises a flexible sheeting 301 which is placed within oral cavity 101b and has covered aperture 201, wherein the sheeting 301 is conveniently intermittently connected to the septum 200 via pressure points 302, i.e., intermittently positioned to form an air passageway. When the nose exhales, the pressure makes the pressing sheet 301 protrude towards the oral cavity 101b, and the intermittent position is expanded into an air passage through which the exhale enters the oral cavity 101 b. On the contrary, when the mouth exhales, the pressing sheet 301 protrudes towards the nose cavity 101a, so that the pressing sheet 301 covers the hole 201, and at the moment, the air passage or the connection part of the air passage and the hole 201 is in a closed state, so that the mouth exhales into the nose cavity 101 a. And further, the effect of one-way blocking can be realized.

Synthesize above-mentioned, in order to further improve gauze mask cover cloth's performance, optimize its structure as follows:

when in use, the spacer 200 is detachably arranged on the cover cloth body 100 through the mounting part 101.1, and the mask can be conveniently placed by detaching the spacer 200 after the cover cloth body 100 is folded. Wherein, the end of the mounting part 101.1 is arranged at the inner side of the cover cloth body 100, and the spacer 200 is fixed on the mounting part 101.1 through the fixed connection part 101.1 a.

The fixed connection part 101.1a can adopt the following two forms:

in the first structure, the fixing portion 101.1a is a slot, and the spacer 200 is inserted into the slot, so that the partition board can be quickly assembled and disassembled.

In the second structure, the fastening portion 101.1a is a hidden button or a sticky button, and the spacer 200 is fastened to the mounting portion 101.1 by the hidden button or the sticky button. Thereby being convenient for the quick assembly and disassembly of the clapboard.

In order to avoid inconvenience caused by detachment of the spacer 200 and inconvenience in placement and contamination after detachment of the spacer 200 when the mask is foldable, the spacer 200 is mounted at the opposite end of the open end of the cover cloth body 100 through the connecting member 500, i.e., the stopper end of the cover cloth body 100, and when the mask is foldable, the spacer 200 is rotated along the axis Y through the connecting member 500. The rotation angle is such that the mask is folded into a plane, and then the spacer 200 is clamped and pressed on the inner side of the mask cloth body 100. After the mask is worn and unfolded, the spacer 200 is rotated to be in a use state. Wherein, the connecting piece 500 is a threaded connecting piece, which is convenient for the assembly and disassembly of the spacer 200 and the adjustment of the rotation resistance; facilitating selective installation of the septum 200.

Synthesize the aforesaid, when using, in order to reduce the nose and exhale the diffusion, be provided with baffle 400 in nose end chamber 101a, baffle 400 installs on spacer 200 along hole 201 profile to baffle 400 forms an opening towards nose end chamber 101a opening direction, wears the back, and the nose is arranged in the space that baffle 400 encloses through the opening, and during the nose exhales, makes most exhale through baffle 400 in leading-in hole 201, and then can reduce to exhale to cover cloth and bridge of the nose junction diffusion. The baffle 400 has a folding structure and can be folded toward the spacer 200. After being folded, the cover cloth is convenient to place and carry after being folded. In addition, the baffle 400 is detachably coupled to the spacer 200 for selective use.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art 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 cover cloth for reducing air leakage at the bridge of the nose, comprising:

the mask comprises a mask cloth body (100) which is unfolded to form a concave cavity (101), and the concave cavity (101) is buckled on the face when the mask is worn;

it is characterized by comprising:

the spacer (200) is arranged in the cavity (101) and divides the cavity (101) into a nose cavity (101 a) and an oral cavity (101 b) which are independently arranged, wherein the spacer (200) is made of a hard material;

the spacer (200) is provided with a hole (201);

the one-way blocking sheet (300) is movably covered on the hole (201); when the mouth part exhales, the one-way blocking sheet (300) is pressed on the hole (201) to block the mouth part exhaling into the nose cavity (101 a); when the nose exhales or the mouth inhales, an air passage is formed between the one-way blocking sheet (300) and the hole (201), so that the air in the nose cavity (101 a) flows to the mouth cavity (101 b).

2. Cover cloth for reducing air leakage at the bridge of the nose according to claim 1, characterized in that the spacer (200) is detachably mounted to the cover cloth body (100) by means of a mounting portion (101.1).

3. The cover cloth for reducing air leakage at the bridge of the nose according to claim 2, wherein the end of the mounting portion (101.1) is disposed inside the cover cloth body (100), and the spacer (200) is fixed to the mounting portion (101.1) by a fixing portion (101.1 a).

4. Cover cloth for reducing air leakage at the bridge of the nose according to claim 3, characterized in that the fastening portion (101.1 a) is a notch, into which the spacer (200) is inserted.

5. The cover cloth for reducing air leakage at the bridge of the nose according to claim 3, wherein the fastening portion (101.1 a) is a hidden button or a sticky button, and the spacer (200) is fastened to the mounting portion (101.1) through the hidden button or the sticky button.

6. A mask for reducing air leakage at the bridge of the nose according to claim 1, wherein said spacer (200) is attached to the opposite end of the open end of said mask body (100) by a connector (500), said spacer (200) being rotatable along axis Y by said connector (500).

7. Cover cloth for reducing air leakage at the bridge of the nose according to claim 6, characterized in that the connector (500) is a threaded connector.

8. Cover cloth for reducing air leakage at the bridge of the nose according to any of claims 1 to 7, characterized in that it comprises a baffle (400) placed in the nose cavity (101 a), said baffle (400) being mounted on said spacer (200) along the contour of said hole (201), and said baffle (400) forming an opening towards the opening of said nose cavity (101 a).

9. The mask of claim 8, wherein the flap (400) is of a foldable configuration, capable of folding toward the spacer (200).

10. A mask for reducing air leakage across the bridge of the nose according to claim 8, wherein said baffle (400) is removably attached to said membrane (200).