CN215075674U - Realize independently breathing freely, good anti-glasses of laminating nature gauze mask that hazes - Google Patents

Abstract

The utility model discloses a realize independently ventilative, the good glasses gauze mask that prevents that laminating nature fogs belongs to medical protection technical field. The nose wing filter comprises an autonomous air-permeable filter membrane window, a detachable nose wing sealing structure, a first supporting strip, a first tightening rope and a second tightening rope; the mask is well attached to the face of a wearer and is airtight through the design that the detachable nose wing sealing structure is matched with the tightening rope, the problem that exhaled hot air flows through the glasses from the nose wing to generate fog is solved, and sufficient breathing space is reserved at the mouth and nose through the design of the supporting strip; and through a filter membrane window of independently breathing freely, utilize the window along with exhaling, breathe in independently open and closed characteristics, realized the autonomic gas permeability of gauze mask, because nose wing seal structure reuse, filter membrane window cost also far is less than filtration box, the utility model discloses can realize mass production, popularization.

Description

Realize independently breathing freely, good anti-glasses of laminating nature gauze mask that hazes

Technical Field

The utility model belongs to the technical field of the medical treatment protection, especially, relate to a realize independently ventilative, the good glasses gauze mask that prevents that laminating nature.

Background

Most of current gauze mask adoption is the sealed mode of interior concealed bridge of the nose strip, and bridge of the nose strip adopts the aluminium strip that possesses plasticity, because the disposable moulding of aluminium strip can not adapt to the facial action of people, expression change after accomplishing, can appear gas leakage phenomenon, wears also uncomfortable to its laminating nature of position that the gauze mask is located facial edge is also relatively poor. For a person wearing glasses, especially in winter, a part of damp and warm air exhaled from the mouth and the nose flows out through gaps between the mask and the bridge of the nose and outside edges of the mask, and when the warm air flows through the glasses at low temperature, fog is generated on the glasses, so that the sight of the wearer is affected, and meanwhile, the protection failure is caused.

Because the three-dimensional contours of the face of a mask wearer are different, masks which completely fit the face of all wearers cannot be prepared, and therefore, the problem of poor mask fitting performance is difficult to avoid only by designing from the appearance of the masks.

In addition, the gauze mask that the laminating nature is good has guaranteed that gaseous can not follow gauze mask edge business turn over, and the glasses can not flowed through from the top edge of gauze mask especially to the gas of exhalation, has improved the protectiveness of gauze mask, but also more need consider the gas permeability of gauze mask simultaneously, avoids because the laminating nature leads to the poor problem of gas permeability well.

The traditional mode of improving the gas permeability is for addding filtration box, both can increase the gas permeability, can filter the air of business turn over again, but filtration box's box body is harder, wears uncomfortable to the price is expensive, is not suitable for popularization and application.

Therefore, there is a need for a mask with improved fit and air permeability, which can effectively prevent the fogging of glasses, make the wearer more comfortable, and reduce the production cost of the mask.

Disclosure of Invention

In order to solve the problems of fogging of glasses, discomfort in wearing and poor air permeability caused by the fact that a built-in nose bridge strip adopted by the traditional mask is not sealed tightly, the utility model provides a glasses fogging prevention mask which realizes autonomous ventilation and good fitting performance, and the mask realizes good fitting performance and sealing performance of the mask and the face of a wearer by matching the design of a detachable nose wing sealing structure with a tightening rope, thereby avoiding the problem that the exhaled hot air flows through the glasses from the nose wing to generate fogging, and reserving sufficient breathing space at the mouth and nose through the design of a supporting strip; and through a filter membrane window capable of automatically ventilating, the automatic ventilation of the mask is realized by utilizing the characteristics that the window is automatically opened and closed along with expiration and inspiration.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a glasses-fogging-prevention mask achieving self-ventilation and good fitting performance comprises a mask main body and elastic ear-hooks arranged on two sides of the mask main body, wherein the mask main body at least comprises an inner surface layer, an outer surface layer and a middle filter layer;

the nasal cavity also comprises an autonomous breathable filter membrane window, a detachable nasal wing sealing structure, a first supporting strip and a tightening rope;

the filter membrane window is arranged on one side of the filter layer facing the outer surface layer, and the filter layer at the position where the filter membrane window is arranged is provided with air holes;

the mask main body is of a three-piece structure formed by splicing a nose bridge piece, an oronasal piece and a chin piece from top to bottom, and a groove with a downward opening is formed in the middle of the upper edge of the nose bridge piece; the first supporting strips are respectively arranged at the splicing positions of the nose bridge piece and the oronasal piece and the splicing positions of the oronasal piece and the chin piece, and clamping supports with adjustable angles are further arranged on the first supporting strips;

the tightening ropes comprise a first tightening rope and a second tightening rope; the edge of the mask main body is trimmed and folded to form first threading channels positioned on the left side and the right side; the first tightening rope is arranged in the first threading channel; one end of each first tightening rope is fixed in the middle of the upper edge of the nose bridge piece, the other end of each first tightening rope penetrates through the first threading channel and then is converged in the middle of the lower edge of the chin piece, and the two first tightening ropes can be independently adjusted;

a second threading channel is arranged inside the elastic ear hook; the second tightening ropes are arranged in the second threading channel, one end of each second tightening rope is a fixed end, the other end of each second tightening rope extends out of the second threading channel, and the two second tightening ropes can be independently adjusted;

the upper part of the nose wing sealing structure is in a double-peak shape, the lower part of the nose wing sealing structure is provided with a clamping groove, the clamping groove is matched with the groove, and the nose wing sealing structure is arranged at the groove through the clamping groove.

Compared with the prior art, the utility model has the advantages that:

1) the utility model adopts the first supporting strip to support the three-piece structure of the mask body, can avoid the problem that the distance between the mask and the nose and the breathing space of a wearer are limited due to too short distance, and further realizes the sealing and laminating of the mask and the face of the wearer through the edge tightening rope and the ear tightening rope of the mask body, thereby solving the problem that the shape and the size of the mask are not matched with the face due to the difference of the three-dimensional outline of the face of the mask wearer, and laying a foundation for improving the laminating property of the mask; in the preferred scheme, the combination has the second support bar of radian, has further improved the support dynamics to the gauze mask body, has avoided leading to the problem of the serious deformation of gauze mask at the in-process of taut tightening rope.

2) The utility model discloses a detachable nose wing seal structure, but reuse, resources are saved adopts self-adhesive silicon gel material can be good with the skin laminating to the doublet structure has further improved the laminating nature with the nose wing both sides, makes its action, the expression change that can adapt to the people face, wears comfortablely, and the steam of having avoided the exhalation produces the fog from nose wing department flow through glasses.

3) In order to discharge the expired gas in time, make the person of wearing breathe more unobstructed, the utility model discloses set up the air vent in that the gauze mask is inside, and set up the filter membrane window of independently breathing freely in the position of air vent. The utility model discloses be many sectorial structures with circular window segmentation, sectorial arc limit is connected with circular outline, and two sectorial other limits can receive expired gas's impact force and expand, receive inspiratory suction and close, realize independently breathing freely.

Drawings

Fig. 1 is a schematic view of the entire structure of the outer side of the anti-fogging mask for glasses, which realizes self-ventilation and good fitting performance in the present embodiment;

FIG. 2 is a schematic view of the outer skin layer at the exposed nose piece of FIG. 1 and the outer side structure of the seal structure without the wings;

FIG. 3 is a schematic view of the second support bar of the present embodiment;

FIG. 4 is a schematic diagram of the construction of a cinch cord in this embodiment;

FIG. 5-1 is a schematic side cross-sectional view of the alar seal structure in the present embodiment;

FIG. 5-2 is a schematic view of the fitting of the alar sealing structure with the recess at the nasal bridge;

FIG. 6 is a schematic view of the relative installation position between the filter membrane window and the filter layer;

FIG. 7 is a schematic view of the structure of a filter membrane window fan;

in the figure: 1, a mask main body, a 101 middle filter layer, 1011 air holes, 102 outer surface layers, 103 inner surface layers, 104 nose bridge pieces, 105 nose pieces, 106 chin pieces, 107 grooves and 108 first threading channels; 2, an elastic ear hook and a 201 second threading channel; 3, filter membrane windows, 301 filter membrane window outer outlines and 302 filter membrane window fanning strips; 4, a nasal alar sealing structure, a 401 clamping groove and a 402 nose support; 5 a first supporting bar; 6 a second supporting strip; 7, tightening a rope, 701 positioning salient points, 702 positioning pieces, 7021V-shaped openings, 7022 positioning holes and 7023 gaps; 8-card holder.

Detailed Description

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

The sealed not tight problem that leads to glasses to fog, wear uncomfortable, the gas permeability relatively poor of interior built-in bridge of the nose strip that adopts in order to solve traditional gauze mask, the utility model discloses improve prior art's gauze mask, prior art's gauze mask include the gauze mask main part at least and set up the elasticity ear-hang in gauze mask main part both sides, the gauze mask main part include endosexine, extexine and middle filter layer at least to realize the basic function of gauze mask.

As shown in fig. 1-3, for the improved anti-fogging mask for glasses with self-ventilation and good fitting performance of the present invention, it comprises a mask body 1, an elastic ear-hang 2, a filter membrane window 3, a nose wing sealing structure 4, a first supporting strip 5, a second supporting strip 6, a tightening rope 7 and a clip support 8.

As shown in fig. 6, the filter membrane window is installed on one side of the filter layer facing the outer surface layer, and the filter layer at the position where the filter membrane window is installed is provided with air holes 1011; in practice, a small number of air holes can be formed in the corresponding positions of the inner surface layer according to the needs. In the present embodiment, the diameter of the air holes is tens to hundreds of nanometers, the number of the air holes is determined according to actual conditions, preferably, the air holes are uniformly formed at the positions where the filter membrane windows are installed, and the total area of the air holes is consistent with the area of the filter membrane windows. The diameter of the filter membrane windows is 0.5-2 cm, and not less than two filter membrane windows are arranged on each respirator and are distributed in bilateral symmetry. The material of the filter membrane window is PTFE or active carbon.

The mask body is of a three-piece structure formed by splicing a nose bridge piece 104, a mouth and nose piece 105 and a chin piece 106 from top to bottom, and a groove 107 with a downward opening is formed in the middle of the upper edge of the nose bridge piece; the first supporting strips 5 are respectively arranged at the splicing positions of the nose bridge piece 104 and the oronasal piece 105 and the splicing positions of the oronasal piece 105 and the chin piece 106, and clamping supports 8 with adjustable angles are further arranged on the first supporting strips; the structure that the card held in the palm is not limited, can realize changing nose piece, chin piece for the degree of buckling of nose piece can. In this embodiment, as shown in fig. 1, the clip holders on the first support bars are 8-shaped, one clip holder is disposed on each of the left and right sides of each support bar, and the bending angle between the upper and lower portions of the clip holder is adjustable, i.e., the bending angle is changed by kneading the upper and lower circles of the 8-shaped clip holder. The card support is bound on the outer surface layer of the mask body or packaged in the inner layer of the mask body.

The edge of the mask body is cut and folded to form a first threading channel 108 positioned on the left side and the right side; the first cinching cord is disposed within the first threading channel 108; one end of each first tightening rope is fixed in the middle of the upper edge of the nose bridge piece 104, the other end of each first tightening rope passes through the first threading channel 108 and then is converged in the middle of the lower edge of the chin piece 106, and the two first tightening ropes can be independently adjusted;

a second threading channel 201 is arranged inside the elastic ear hook 2; the second tightening ropes are arranged in the second threading channel 201, one end of each second tightening rope is a fixed end, the other end of each second tightening rope extends out of the second threading channel, and the two second tightening ropes can be independently adjusted;

the upper part of the sealing structure 4 of the nose wing is in a double-peak shape, as shown in fig. 5-1 and 5-2, the lower part is provided with a clamping groove 401, the clamping groove is matched with the groove 107, and the sealing structure of the nose wing is arranged at the groove through the clamping groove. Because the sealing structure of the nose wing is made of soft materials, the clamping groove can be completely clamped in the groove after deformation, and installation is realized.

In one embodiment of the present invention, as shown in fig. 4, the first tightening rope and the second tightening rope are rubber ropes with positioning protrusions 701, the positioning protrusions are uniformly distributed on the rubber ropes, one end of each rubber rope is a fixed end, and the other end of each rubber rope is connected to a positioning plate 702; the rubber rope, the positioning salient points and the positioning pieces are of an integrated rubber structure.

The positioning piece is provided with a V-shaped opening 7021 and a positioning hole 7022 which are communicated through a gap 7023; the diameter of the positioning hole is consistent with that of the rubber rope. The positioning sheet and the positioning salient points made of rubber guarantee the positioning stability, and the sliding and the releasing from the positioning position can not happen. In the tightening process, the positioning sheet is turned upwards, a proper positioning salient point is selected, and the rubber rope at the position of the positioning salient point is clamped at the position of the positioning hole after passing through the gap at the V-shaped opening, so that tightening is realized.

In one embodiment of the present invention, the outer contour 301 of the filter membrane window is circular, and the inside of the filter membrane window is divided into filter membrane window segments 302, as shown in fig. 7, which are divided into 6 segments. The arc edge of the fan-shaped piece is connected with the outer contour, and the other two edges of the fan-shaped piece can be unfolded under the impact force of exhaled air and closed under the suction force of inhaled air. This is because, during exhalation, the air is blown from the inside to the outside, the segment is naturally expanded by the impact force, and the air is discharged through the air holes 1011 and the filter window 3. When breathing in, the suction force is from outside to inside, the filter membrane window is stressed to be closed, and the inner side of the filter membrane window is attached to the filter layer, so that the filter membrane window is prevented from expanding in the opposite direction by the filter layer, and external air is prevented from directly entering the mouth and the nose of a wearer from the filter membrane window. Obviously, this does not mean that the air cannot enter the mask from the outside, and as in the case of the conventional mask, the air required for breathing enters the mask through the structure of at least three layers (inner surface layer, outer surface layer and intermediate filter layer), and the entering air is sufficiently filtered.

In one embodiment of the present invention, the filter windows may be disposed in a rectangular, oval or triangular shape on the filter layer inside the nose and mouth, and the distribution positions are located between the nostrils and the mouth, as shown in fig. 2, the filter windows are arranged in a rectangular shape. In fig. 2, the outer skin of the oronasal flap is hidden to allow a clear illustration of the filter window 3, the filter window 3 being shown mounted on the filter layer, the outer skin remaining at the nasal bridge flap 104 and chin flap 106.

Further, in order to improve the water absorption of the inner surface layer, the inner surface layer is made of a water-absorbing material, such as hydrophilic spun-bonded nonwoven fabric.

In order to realize better fit between the nose wing sealing structure and the skin, the nose wing sealing structure is made of self-adhesive silicon gel materials, 3D printing is adopted in the preparation process, the whole structure is light and thin, the inner side of the nose wing sealing structure is fitted with the nose wing, and the nose wing sealing structure can be customized into a cartoon type, a skin color hidden type or a standard type matched with the color of a mask in an individualized way.

In order to make wearing the glasses more comfortable, as shown in fig. 1, a pair of glasses nose pads 402 may be disposed on the nose wing sealing structure, and the glasses may be clipped at the nose pads.

In order to prevent the outer contour of the mask body from being deformed obviously along with the increase of the tension force and provide sufficient breathing space for the wearer, as shown in fig. 3, the mask further comprises four second support bars with radian of 30-90, wherein the second support bars are arranged between the two first support bars and are distributed along the center line of the mask body in a bilateral symmetry manner. When taut first tightening rope, the second support bar that has the radian can the atress by the extrusion, avoids two first support bars to take place too big deformation, better support gauze mask body. For better clarity, the inner surface layer, the filter membrane window and the outer surface layer of the oronasal piece are hidden in the figure 3, and only the second supporting strip is reserved. The inner surface layer on the nose and mouth piece is made of water-absorbing materials which are consistent with the nose bridge piece and the chin piece and can absorb the exhaled hot air and moisture.

The utility model provides an achievable function of above-mentioned gauze mask has:

1) is suitable for the face shape of the wearer.

Because the three-dimensional contours of the face of a mask wearer are different, masks which completely fit the face of all wearers cannot be prepared, and therefore, the problem of poor mask fitting performance is difficult to avoid only by designing from the appearance of the masks. The utility model discloses ingenious design of tightening up the rope that has utilized on the basis of gauze mask body: on the one hand, it is folding through the edge cut edge with the gauze mask body, form around the first threading passageway of gauze mask outward flange round, introduce the rope of tightening in first threading passageway, and should tighten up the function that the rope can realize tightening up the auto-lock, only need to link the one end of spacer to turn over upwards, with the location bump card of suitable position in the locating hole on the spacer can, realize tightening up of facial edge. On the other hand, a tightening rope is also introduced into the elastic ear hook, so that the tightening force between the mask and the ear can be adjusted, and the mask is more suitable for more groups.

2) Providing sufficient breathing space.

Because be difficult to avoid when tightening facial laminating degree the space between gauze mask and the mouth nose too narrow and small, lead to the comparatively short problem in respiratory space, the utility model discloses design into three formula structures with the gauze mask main part, hold in the palm 8 through the card and can realize the angle modulation between three, change nose bridge piece, chin piece for the degree of buckling of mouth nose piece, avoid respiratory space's reduction when realizing increasing the laminating nature. In addition, still through the design support frame, include the first support bar that the concatenation department of nose piece and oronasal piece and the concatenation department of jaw piece and chin piece set up to and the second support bar that sets up between two first support bars, guaranteed that the outline of gauze mask body can not obviously warp along with the increase of tightening force, provide sufficient breathing space for the wearer.

3) The nose wing is attached, so that the fogging of the glasses of a wearer is thoroughly avoided;

this makes the wearer of the spectacles particularly prone to fogging during use, as the wings of the nose are the most difficult places to fit. The utility model discloses a detachable nose wing seal structure can carry out individualized design, but reuse adopts self-adhesive silicon gel material can be good with the skin laminating to the doublet structure has further improved the laminating nature with the nose wing both sides, makes its action, the expression change that can adapt to the people face, wears comfortablely, and the steam of having avoided the exhalation produces fog from nose wing department flow through glasses.

4) The breath is smooth.

In order to discharge the expired gas in time, make the person of wearing breathe more unobstructed, the utility model discloses set up the air vent in that the gauze mask is inside, and set up the filter membrane window of independently breathing freely in the position of air vent. The utility model discloses be many sectorial structures with circular window segmentation, sectorial arc limit is connected with circular outline, and two sectorial other limits can receive expired gas's impact force and expand, receive inspiratory suction and close, realize independently breathing freely.

5) Is convenient for storage.

When the wearer needs to take off the mask and temporarily store the mask, the inner side of the mask can be sealed by tensioning the two first tightening ropes, so that the problem that the inner side of the mask is polluted is avoided.

The general wearing process of the mask comprises the following steps:

the detachable nose wing sealing structure is arranged on the mask main body, as shown in figures 5-1 and 5-2, the middle part of the upper edge of the nose bridge piece is provided with a groove with a downward opening, the lower part of the nose wing sealing structure is provided with a clamping groove matched with the groove, the nose wing sealing structure is arranged at the groove through the clamping groove, and the nose wing sealing structure is made of a soft material, so that the clamping groove can be completely clamped in the groove after deformation, and the installation is realized.

Wear the gauze mask, adjust the position of nose wing seal structure for it is comfortable to wear, optionally with the nose of glasses card at nose wing seal structure hold in the palm the department. The first tightening rope and the second tightening rope are adjusted by combining the face shape of the wearer, so that the mask and the face are attached and sealed.

The foregoing is illustrative of only specific embodiments of this invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.

Claims (10)

1. An anti-glasses fogging mask achieving automatic ventilation and good fitting performance comprises a mask main body (1) and elastic ear hooks (2) arranged on two sides of the mask main body, wherein the mask main body at least comprises an inner surface layer (103), an outer surface layer (102) and a middle filter layer (101), and is characterized by further comprising an automatic ventilation filter membrane window (3), a detachable nose wing sealing structure (4), a first supporting strip (5) and a tightening rope (7);

the filter membrane window (3) is arranged on one side of the filter layer facing the outer surface layer, and the filter layer at the position where the filter membrane window is arranged is provided with an air hole (1011);

the mask body is of a three-piece structure formed by splicing a nose bridge piece (104), a mouth-nose piece (105) and a chin piece (106) from top to bottom, and a groove (107) with a downward opening is formed in the middle of the upper edge of the nose bridge piece; the first supporting strips (5) are respectively arranged at the splicing positions of the nose piece (104) and the nose-mouth piece (105) and the splicing positions of the nose-mouth piece (105) and the chin piece (106), and clamping supports (8) with adjustable angles are further arranged on the first supporting strips (5);

the tightening rope (7) comprises a first tightening rope and a second tightening rope; the edge trimming of the mask main body is folded to form a first threading channel (108) positioned on the left side and the right side; the first tightening rope is arranged in the first threading channel; one end of each first tightening rope is fixed in the middle of the upper edge of the nose bridge piece, the other end of each first tightening rope penetrates through the first threading channel and then is converged in the middle of the lower edge of the chin piece, and the two first tightening ropes can be independently adjusted;

a second threading channel (201) is arranged inside the elastic ear hook; the second tightening ropes are arranged in the second threading channel, one end of each second tightening rope is a fixed end, the other end of each second tightening rope extends out of the second threading channel, and the two second tightening ropes can be independently adjusted;

the upper portion of the nose wing sealing structure is double-hump-shaped, the lower portion of the nose wing sealing structure is provided with a clamping groove (401), the clamping groove (401) is matched with the groove (107), and the nose wing sealing structure is arranged at the groove through the clamping groove.

2. The mask of claim 1, wherein the outer contour of the filter membrane window is circular, the inner part of the filter membrane window is divided into fan-shaped pieces, the arc edges of the fan-shaped pieces are connected with the outer contour, and the other two edges of the fan-shaped pieces can be unfolded by the impact force of exhaled air and closed by the suction force of inhaled air.

3. The mask of claim 1, wherein the filter windows are disposed in a rectangular, oval or triangular pattern on the filter layer of the nose and mouth piece at a location between the nostrils and the mouth.

4. The mask of claim 1, wherein the sealing structure of the nose wing is made of self-adhesive silicone gel material.

5. The mask of claim 1, wherein a pair of nose pads (402) is disposed on the nose-wing sealing structure.

6. The mask of claim 4 or 5, wherein the nose wing sealing structure is made by 3D printing, the inner side of the nose wing sealing structure is attached to the nose wing, and the nose wing sealing structure can be customized to be cartoon type, skin color hiding type or matched with the mask color.

7. The mask of claim 1, wherein the first and second tightening strings are rubber strings with positioning protrusions (701), the positioning protrusions are uniformly distributed on the rubber strings, one end of each rubber string is a fixed end, and the other end of each rubber string is connected with a positioning plate (702); the rubber rope, the positioning salient points and the positioning pieces are of an integrated rubber structure.

8. The mask of claim 7, wherein the positioning plate is provided with a V-shaped opening (7021) and a positioning hole (7022), the V-shaped opening and the positioning hole are communicated through a gap (7023); the diameter of the positioning hole is consistent with that of the rubber rope.

9. The mask according to claim 1, wherein the first support bars have a shape of "8", and each support bar has a clip on each of the left and right sides, and the bending angle between the upper and lower portions of the clip is adjustable.

10. The mask according to claim 1 or 9, further comprising a plurality of second support strips (6) with 30-90 radians, wherein the second support strips are disposed between the two first support strips (5) and symmetrically distributed along the center line of the mask body.

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