CN214710589U - Gauze mask of quick exhaust - Google Patents

Abstract

The utility model provides a quick carminative gauze mask, is through the v-arrangement acute angle nose and mouth isolating construction who uses gauze mask central cross-section to constitute for a long limit and a minor face to and the breather valve of the relative gauze mask kink of v-arrangement structure department and nostril, realize the expiration of discharging fast, reduce expired air and vapor and be detained time and volume in the gauze mask, thereby reduce the sense of suffocation, increase the beneficial effect of the interior exchange fresh air volume of gauze mask.

Description

Gauze mask of quick exhaust

Technical Field

The invention belongs to the field of personal respiratory protection, and particularly relates to a mask capable of exhausting air rapidly.

Background

Pm2.5 protective facial mask adopts the non-woven fabrics separation at present, and the protecting effect is better, and air permeability is worse, and people often can't wear for a long time. The mode that adopts the breather valve can discharge the exhaust waste gas of exhalation, and present breather valve for the gauze mask adopts 1 to 2 diaphragms to be located the gauze mask surface more, parallel gauze mask or slightly have the inclination, and during the expiration, nostril exhaust air can not directly discharge fast to the diaphragm export, and the better breather valve structure is breather valve working of plastics below at present, is located the structure of several millimeters thick departments of diaphragm gas vent in the gauze mask with inclined plane guide air current. However, the mask covers the nose and the mouth, and the air flow is mostly rushed to the mouth space under the nose and in the space below the mouth and the lip, so that the air flow is discharged from the nose, and the turbulent flow is formed inside the mask, thereby further interfering the exhaust effect. It is located nose or nostril dead ahead to adopt the breather valve for this reason, in order to reach the shortest path of exhaling of discharging, still receive the gauze mask shape, when exhaling through the breather valve, still can continue to fill downwards inside back of gauze mask, under the condition of atmospheric pressure increase, promote the breather valve block and open the back, exhaust waste gas again, the vapor has filled inside the gauze mask and condenses inside the gauze mask in exhaling this moment, lead to inside humidity increase very fast of gauze mask, the gauze mask gas permeability further reduces, worsen the gas permeability. Therefore, the air permeability is often reduced and the phenomenon that water vapor rushes upwards to fog the glasses of a user wearing the glasses is often caused under the condition that the air outlet valve is arranged and the wearing time is prolonged.

Disclosure of Invention

The utility model provides a quick carminative gauze mask can discharge the expiration fast, reduces the gauze mask that expired air and vapor are detained time and volume in the gauze mask.

The technical method adopted by the utility model is as follows: a mask capable of exhausting air rapidly is characterized in that the central section of the mask is a v-shaped acute nose and mouth isolation structure consisting of a long side and a short side, one end of the v-shaped long side is the uppermost end of the mask positioned at the nose bridge, and the other end of the v-shaped long side is positioned in front of and lower than the nose; one end of the v-shaped short side is positioned in the middle of the person between the upper lip and the nostril, and the other end of the v-shaped short side is intersected with one end of the v-shaped long side positioned in front of and below the nose to form a v-shaped acute angle structure; the mask body with the v-shaped acute angle structure extends towards the ear directions at the left side and the right side to form a v-shaped mask structure which is bent under the nose and returns towards the position between the nose and the mouth; the respirator bending part of the V-shaped respirator structure opposite to the nostril is provided with a breather valve.

When the left side and the right side of the mask are folded and stored, the v-shaped included angle at the central line is reduced to an acute angle larger than 0 degree; when the mask is unfolded, the v-shaped clamp angle at the central line is opened, and the mask bodies which are bent and attached together originally on two sides of the mask are unfolded into a v shape and gradually unfolded or shrunk and attached together along with the attachment of the face. The breather valve is positioned on the bent part formed by the v-shaped top angle of the mask body below the nostril, and is provided with at least 1 through hole, preferably a strip-shaped slit structure, and an air outlet channel is formed by the breather valve and the diaphragm type one-way valve. The diaphragm type one-way valve is of a herringbone structure, and two diaphragms or 1 diaphragm and the mask body extend outwards along a v-shaped vertex angle to form the one-way valve which only can not be opened or closed. When the mask exhales, air exhaled by the nostrils is downwards pushed by the slit along the inclined plane of the mask body formed by the V shape to be exhausted after the diaphragm of the one-way breather valve is pushed to be opened; when the respirator inhales air, the human-shaped one-way valve structure at the V-shaped structure is influenced by negative pressure inside the respirator, and external air compresses the herringbone one-way valve to prevent air from entering, so that the air filtered by the respirator cloth at two sides of the V-shaped structure is supplemented and inhaled. The symmetrical exhaust mode that humanoid check valve adopted 2 corresponding nostrils is superior to single structure of unilateral, causes the torrent when preventing directly discharging after the nostril of opposite side discharges the waste gas, influences the originally directly dischargeable waste gas of nostril of opposite side.

The breather valve is a V-shaped diaphragm type one-way valve with one side or two sides. The one-way valve adopts a duckbill valve or a duckbill structure. When the membrane is arranged on one side, the 1 side is made of materials such as a mask body or plastics and the like and is attached to the membrane on the other side in a v-shaped corner clamping manner; during two side diaphragm structures, with 2 diaphragms of laminating respectively in the slit punishment that opens of gauze mask bending part, laminate with the mode of v-shaped clip angle, the diaphragm apex angle is located the slit outside, and the diaphragm can be fixed in the gauze mask of slit inboard or on the gauze mask of slit outside on the surface, with hot melt, gluing or working of plastics joint mode. In order to prevent air leakage, wedge-shaped silica gel or plastic parts are matched and sealed on the end surfaces of two sides of the clamped V-shaped diaphragm. When exhausting, the diaphragm at one side or 2 sides is separated and opened, and when closed, the two sides of the diaphragm are sealed with the wedge-shaped silica gel or the plastic piece. In order to prevent the diaphragm from being pressed and deformed, the outer part of the breather valve is protected by a plastic shell.

The V-shaped structure is positioned in two sides of the nose wing and is provided with a flow-resisting diaphragm cloth. Because during expiration, the direct vent gas is not completely discharged, can flow to both sides along the v-shaped structure, for the detention of further reducing waste gas inside the gauze mask, the choked flow cloth is located the nostril both sides in the v-shaped structure. When the mask is unfolded, the inside of the v-shaped structure is unfolded. The flow-resisting diaphragm cloth made of elastic or flexible fabric is not easy to expand along with the expansion of the mask due to the storage compression deformation. The flow-resisting diaphragm cloth is wedge-shaped, two sides of the flow-resisting diaphragm cloth are compounded with the inside of the mask v-shaped structure in a hot melting or bonding mode, and the shape of the flow-resisting diaphragm cloth and the mask v-shaped structure compounded and bonded is larger than, the same as or smaller than the section of the v-shaped structure after the mask v-shaped structure is unfolded. When the cross section of the flow-resisting diaphragm cloth is consistent with that of the V-shaped structure, the flow-resisting diaphragm cloth can be provided with a one-way valve. The existence of the flow-resisting diaphragm cloth can increase the exhaust pressure at the breather valve.

The flow-resisting diaphragm is provided with a one-way valve which is unblocked towards the nostril direction. When the one-way valve is adopted, the one-way valve is unblocked when inhaling, the one-way valve is closed when exhaling, the exhaled air is partially and directly discharged, and when inhaling again, the fresh air which is not mixed with the exhaled waste gas is inhaled through the one-way valve on the flow blocking diaphragm cloth. Because the space is limited, the one-way valve adopts a simple membrane and hole combination mode, the requirement on barrier property is not high, and only most of breath needs to be blocked.

The mask body is integrally folded or connected by hot melting and sewing. The generation of leftover bits and pieces is reduced through the mode of folding in an organic whole, and hot melting or sewing can make suitable shape according to facial feature.

The nose bridge sealing body is arranged at the upper part of the mask. The nose bridge sealing body is a sponge or a mask body which is folded. Because the compression to gauze mask inner space upwards becomes the most easily escape department of exhaling through bridge of the nose and facial gap, increases the bridge of the nose sealing body for this and can prevent more interference of exhaling steam to glasses.

The lower part of the mask is provided with an oral mask body. The mouth protection is carried out by adopting an integrated mode, namely, the mask fabric with the same filtration grade or the mask fabric with the filtration grade lower than the nose filtration grade. While this solution may provide a solution that is only nasal breathing, when oral breathing is used, a mouth mask is still necessary.

The outer layer of the breathing valve of the mask is provided with a mask body. Because the breather valve of this structure can discharge the expiration fast, and the material that leads to in the expiration probably spreads the distance far away, has the downward horizontal vertical cover body of one deck change air current direction or the cover body that filterability is low in the breather valve skin this moment, like the veil, all can realize reducing the effect of spreading the distance through changing the expiration direction or reducing expiratory speed, also can protect the mouth under the circumstances that only has the protection of v-arrangement nose.

Drawings

1. The folding nose comprises an upper folding sealing body, 2, a heat seal line, 3, an outer nose cover body, 4, an inner nose cover body, 5, an exhaust valve, 50, glue, 51, a film, 52, a wedge seal, 53, flow blocking cloth, 54, an air hole, 55, a composite area, 56, a folding line, 57, a central folding line, 6, an inner mouth and nose separation folding line, 7, an outer mouth and nose separation folding line, 8, a lower ear band fixing point, 9, an upper inner folding line, 10, an upper outer folding line, 11, an upper ear band fixing point, 12, a neck band, 121, a connecting buckle, 13, a pleating yarn, 14, a lower inner folding line, 15, a lower outer folding line, 16 and a central symmetrical folding line.

Fig. 1 is a perspective schematic view of a mask of embodiment 1 when worn;

FIG. 2 is a schematic view showing a mask of embodiment 1 being developed on one side;

FIG. 3 is a schematic structural view of a check valve in embodiment 1;

fig. 4 is a perspective view schematically showing the mask of embodiment 2 when worn;

FIG. 5 is a schematic view showing the mask of example 2 with one side of the mask;

FIG. 6 is a schematic view of a flow-blocking cloth of embodiment 2;

fig. 7 is a perspective view schematically showing the mask of embodiment 3 when worn;

fig. 8 is a schematic view showing the mask of example 3 developed from both sides.

Detailed Description

Example 1: as shown in fig. 1, 2 and 3, 2 sheets of nonwoven fabric were die cut as shown in fig. 2 while breaking the C-shape at the vent valve 5, and hot-pressed folding marks along the oronasal partition inner folding line 6, the oronasal partition outer folding line 7, the upper inner folding line 9 and the upper outer folding line 10. After 2 punched non-woven fabrics are aligned and thermally fused along a heat seal line 2, the nose internal folding sealing body 1 is turned inwards along an upper internal folding line 9 towards the middle of the 2 non-woven fabrics, the rest triangular non-woven fabrics are turned outwards along an upper external folding line 10 to form a mask shielding area between ears and eyes, the heat seal line 2 is formed at the intersection of a triangle and the upper internal folding line 9 through heat seal, and an upper ear belt fixing point 11 is formed at the top corner of the triangle through hot melting of the mask ear belt. The non-woven fabric is folded inwards along the oral-nasal separation inner folding line 6, and is folded outwards along the oral-nasal separation outer folding line 7, and the mask body between the upper inner folding line 9 and the oral-nasal separation inner folding line 6 is the nasal outer mask body 3; the nose and mouth separation inner folding line 6 and the nose and mouth separation outer folding line 7 form the nose and mouth shield body 4. When the mask is worn, the mouth and nose separation outer folding line 7 is positioned between the mouth and the nose, and the mask body for the nose is arranged above the mouth and nose separation outer folding line 7, so that the mask body only surrounds the nose and the faces on two sides of the nose when the mask is worn and unfolded. The lower part of the mouth-nose separation outer folding line 7 forms a mouth mask body which only surrounds the mouth when the mask is worn and unfolded. The nose external mask body 3 is provided with a C-shaped cutting line at the exhaust valve 5, the non-woven fabric at the position is not bent along the oral-nasal separation inner folding line 6, but a part of the breather valve 5 is formed by adhering a film 51 to the C-shaped cutting line of the nose external mask body 4 by using glue 50, a breather valve exhaust hole is formed at the notch caused by the C-shaped notch, and the breather valve 5 is formed together with the C-shaped cut fabric of the nose external mask body 3.

Example 2: as shown in fig. 4, 5 and 6, the mask was continuously heat sealed along a heat seal line 2 using 2 sheets of mask fabric die cut as shown in fig. 5. The mask is respectively folded inwards along an upper inner folding line 9 to form an upper nose inner folding sealing body 1, an inner mouth-nose separation folding line 6 is folded inwards to form an outer nose cover body 3, an outer mouth-nose separation folding line 7 is folded outwards, the inner mouth-nose separation folding line 6 and the outer mouth-nose separation folding line 7 form an inner nose cover body 4, and an oral area is formed below the outer mouth-nose separation folding line 7. The compound region 55 of the chafer 53 shown in fig. 6, which is located outside the both-side folding lines 56, is combined with the compound region 55 shown in fig. 5. The flow-blocking cloth 53 shown in fig. 6 is wedge-shaped, a central folding line 57 is arranged in the center, air holes 54 are arranged on two sides of the central folding line 57, and a folding line 56 between the two air holes 54 and the central line of the film 51 are heat-sealed through a heat-sealing line 2 to form the complete flow-blocking cloth 53. The membrane 51 is a silicone membrane or pet membrane and is located on the side close to the nose. 1 piece of rectangular veil with the length equal to the length of the mask and the width 2 times of the mask is folded into continuous fold gauze 13 which is sewn or heat-sealed with the peripheral edge of the main body of the mask. The face yarn is dipped with silver ion antibacterial finishing agent. Two ends of the mask are connected with neck belts 12, and an adjustable connecting buckle 121 is arranged in the middle of the neck belts 12.

Example 3: as shown in fig. 7 and 8, 3 layers of rectangular non-woven mask fabrics are tiled, and are fused into a rectangular frame according to the heat shown in fig. 6, and 3 layers of fabrics are fused into a rectangular frame in a dot-like manner along each folding line, and each folding line of the mask is formed by sequentially arranging an upper inner folding line 9, an oral-nasal separation inner folding line 6, an oral-nasal separation outer folding line 7, a lower inner folding line 14 and a lower outer folding line from top to bottom. And punching and cutting redundant fabric along a symmetrical heat seal line 2 which is approximately rhombic and has the upper end side length larger than the lower end side length by 6 mm and is symmetrical left and right and a strip hole shape at the exhaust valve 5, thermally melting or gluing the exhaust valve 5 at the strip hole, folding along a central symmetrical folding line 16, and then, after heat sealing along the heat seal line 2, respectively folding outwards and inwards according to an upper inner folding line 9, an oral-nasal separation inner folding line 6, an oral-nasal separation outer folding line 7, a lower inner folding line 14 and a lower outer folding line. After folding, the two sides of the mask are respectively fixed with the left ear belt and the right ear belt in a hot melting way.

Claims (7)

1. A mask capable of exhausting quickly is characterized in that the central section of the mask is a v-shaped acute nose and mouth isolation structure consisting of a long side and a short side, one end of the v-shaped long side is the uppermost end of the mask positioned at the nose bridge, the other end of the v-shaped long side is positioned in front of and lower than the nose, one end of the v-shaped short side is positioned in the middle of a person between an upper lip and a nostril, and the other end of the v-shaped short side is intersected with one end of the v-shaped long side positioned in front of and below the nose to form a v-shaped acute angle structure; the mask body with the v-shaped acute angle structure extends towards the ear directions at the left side and the right side to form a v-shaped mask structure which is bent under the nose and returns towards the position between the nose and the mouth; the respirator bending part of the V-shaped respirator structure opposite to the nostril is provided with a breather valve.

2. The rapid degassing mask of claim 1 wherein said breather valve is a V-shaped one-way valve with one or two diaphragm sides.

3. The rapid-venting mask of claim 1 wherein the v-shaped structure has a flow-obstructing membrane fabric on either side of the nasal ala.

4. The rapid exhaust mask of claim 3 wherein said flow-obstructing septum is provided with a one-way valve that opens in the direction of the nares.

5. The rapid ventilation mask of claim 1 wherein said mask upper nose bridge seal.

6. The rapid degassing mask of claim 1 wherein a mouth mask is provided beneath said mask.

7. The rapid exhaust mask as recited in claim 1, wherein said mask breather valve is covered with a mask body.

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