CN111887522A

CN111887522A - Concatenation gauze mask

Info

Publication number: CN111887522A
Application number: CN202010925649.XA
Authority: CN
Inventors: 孙承业
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2020-11-06

Abstract

The invention relates to a spliced mask, which comprises a mask body, wherein the mask body is formed by splicing a first mask surface layer with the upper filtering efficiency of more than or equal to 95% and a second mask surface layer with the lower filtering efficiency of more than or equal to 30% and less than or equal to 90%, a transverse diaphragm is fixedly arranged at the splicing position of the first mask surface layer and the second mask surface layer along the splicing direction, the mask body is divided into an upper nasal part air suction cavity and a lower oral part air breathing cavity by the transverse diaphragm, a plurality of folds are formed on the second mask surface layer in the vertical direction, the edges of two sides and the lower edge of the second mask surface layer are wrapped on an elastic rope, and the two ends of the elastic rope are respectively and correspondingly fixed at the two ends of the splicing. The spliced mask is particularly suitable for occasions needing continuous communication in hospitals, meeting places, teaching and the like in high-risk places such as air pollution, respiratory epidemic and the like.

Description

Concatenation gauze mask

Technical Field

The invention relates to the field of health protection, in particular to a spliced mask.

Background

Along with the improvement of health protection consciousness of people, more and more people wear the mask in haze days, epidemic disease outbreak periods and when taking public transport means, and especially the global pandemic of the respiratory epidemic makes people almost become a habit of wearing the mask when going out. Because the face area is big, the shape is undulant comparatively complicated, current gauze mask is difficult to with the complete driving fit of human face, including the high risk area of respiratory epidemic, the filtration efficiency grade of gauze mask is very high, in the expiration, because the air current discharges unsmoothly, the internal gas pressure of cover increases, the air current upwards escapes from the nose and is difficult to avoid, because the exhalation air current contains a large amount of steam, in low temperature environment, for example autumn and winter, air-conditioned room etc., to the gauze mask user who needs to wear frame-type glasses, eye-shade, form fog on the lens very easily, disturb their sight, influence work and life, especially to the patient who carries the virus, great respiratory area, the risk that has also increased the virus and has escaped, in addition, expiratory pressure is big, also lead to the exhalation difficulty, produce uncomfortable sense.

Disclosure of Invention

In order to solve the technical problem, the invention provides a spliced mask.

Splicing mask, including the cover body, the cover body is greater than or equal to 95% first gauze mask layer and the filter efficiency of below by the filter efficiency of top and is greater than or equal to 30% and be less than or equal to 90% second gauze mask surface course concatenation form, and the concatenation department of first gauze mask layer and second gauze mask surface course sets firmly horizontal diaphragm along the concatenation direction, horizontal diaphragm will cover the body and cut apart into the nasal part breathing cavity of top and the oral part breathing cavity of below, second gauze mask surface course forms a plurality of folds in vertical direction, and the both sides edge and the lower limb parcel of second gauze mask surface course are on the elasticity rope, the both ends of elasticity rope correspond respectively and fix the both ends at cover body middle part concatenation department.

Preferably, the transverse diaphragm is provided with an inosculating surface matched with the shape of the face between the mouth and the nose, and the middle part of the inosculating surface is provided with a W-shaped continuous arc surface matched with the human middle part of the face.

Preferably, the transverse diaphragm is made of a hard material or a soft material with elasticity or a composite layer with hard outside and soft inside, and the transverse diaphragm is provided with a one-way valve mechanism which only allows airflow from the nose breathing cavity to the mouth breathing cavity.

Preferably, the transverse diaphragm is made of a hard material or an elastic soft material or a composite layer with hard outside and soft inside, and divides the first mask surface layer and the second mask surface layer into independent cavities with airflow not communicated with each other.

Preferably, the transverse diaphragm is made of a composite layer with hard outside and soft inside, and the composite layer comprises hard plastic on the outer layer and a silica gel layer or a hydrogel layer adhered to the hard plastic or a strip-shaped air bag made of an elastic material.

Preferably, the transverse diaphragm made of soft materials is provided with a through hole extending in the vertical direction, and the check valve mechanism comprises a hard cylindrical fixing seat fixed in the through hole in an inserting manner and an elastic valve, wherein one end of the elastic valve is fixed at the bottom of the cylindrical fixing seat and covers the bottom of the cylindrical fixing seat.

Preferably, the hard part of the transverse diaphragm is provided with a through hole extending along the up-down direction, and the one-way valve mechanism is an elastic valve with one end bonded and fixed at the bottom of the through hole.

Preferably, the transverse diaphragm is H-shaped in cross section and comprises an inner end part connected with the cover body, an outer end part matched with the shape of the face between the mouth and the nose, and a connecting part connecting the inner end part and the outer end part.

Preferably, the second mask surface layer is provided with a membrane-shaped one-way valve for one-way ventilation from inside to outside.

Preferably, the hanging lugs are respectively arranged at the upper part and the lower part of the cover body.

Preferably, a fresh air mechanism for providing filtered air into the mask is arranged at a position above the nose bridge after the first mask layer is worn.

When the spliced mask is worn, the transverse diaphragm is attached between the mouth and the nose, the first mask surface layer is fixed on the face through the ear ropes and the transverse diaphragm, when speaking, the mandible and peripheral muscles move, the second mask surface layer is pulled through the elastic rope, and the second mask surface layer forms a plurality of folds in the vertical direction, so that the second mask surface layer still is tightly attached to the face in the unfolding and folding processes, the transverse diaphragm has the separation effect, the mouth supports the rear bearing tension effect, the elastic rope has the telescopic characteristic, and the folds, the transverse diaphragm and the elastic rope cooperate with one another, so that the unfolding and the folding of the second mask surface layer basically cannot influence the obtaining of the first mask surface layer, the close attachment of a nasal air suction cavity formed by the first mask surface layer and the face can be ensured, and the spliced mask is particularly suitable for hospitals, meeting places and people in high-risk places of air pollution and new crown pneumonia, Teaching and the like in occasions requiring continuous communication. The top of the cover body adopts the first gauze mask finish coat that filtration efficiency is greater than or equal to 95%, the purpose is when breathing in, reach good filtration efficiency, owing to breathe, inhale the branch chamber, the suction of gas mixture has been reduced, inhaled all is the clean air after the filtration, the below sets up filtration efficiency and is greater than or equal to 30% and be less than or equal to 90% second gauze mask finish coat, because the droplet particles is bigger, 30% filtration efficiency's gauze mask finish coat just can effectively filter the droplet, it is thin and the gas permeability good that second gauze mask finish coat can be done like this, make things convenient for the air current to see through from second gauze mask finish coat, reduce and extrude the risk from the gauze mask gap, can also reduce the cost of gauze mask.

Furthermore, the diaphragm is provided with an inosculating surface matched with the shape of the face between the mouth and the nose, and the middle part of the inosculating surface is provided with a W-shaped continuous arc surface matched with the middle part of the face, so that the diaphragm is more attached to the upper lip and the gas exhaled from the mouth exhalation cavity is prevented from entering the nasal inhalation cavity.

Further, the transverse diaphragm has a one-way valve mechanism thereon that permits air flow only from the nasal inhalation chamber to the oral exhalation chamber. Make when breathing in with the nose, the air gets into the nasal part chamber of breathing in after first mouth top facing layer filters, the gaseous unable nasal part chamber of breathing in that gets into of oral area chamber of breathing in, when the nose breathes out, most gaseous chamber of breathing in of passing through check valve mechanism inlet port, and in second gauze mask surface course entering environment, the pressure when having reduced the intrinsic expiration of nasal part chamber of breathing in, further prevent to exhale from not adding filterable exhaling from department such as nosewing, the condition emergence of having avoided steam upwards to get into the lens from the nasal part, the crowd who is particularly suitable for wearing glasses uses. The layered mask is suitable for various scenes, in particular to a new high-risk environment with higher protection level requirements.

Furthermore, the transverse diaphragm is made of a composite layer which is hard at the outside and soft at the inside, the composite layer comprises hard plastic at the outer layer and a silica gel layer or a hydrogel layer which is adhered to the hard plastic or a strip-shaped air bag which is made of elastic material, so that the hard plastic can keep the supporting function of the transverse diaphragm, and the silica gel layer or the hydrogel layer or the strip-shaped air bag which is made of elastic material can be well and comfortably attached to the upper lip between the mouth and the nose.

Furthermore, the hanging lugs are respectively arranged at the upper part and the lower part of the cover body, and when the mask is worn, the hanging lugs are transversely sleeved on the head, so that the second cover layer can be turned upwards to the first cover layer in the dining process, then the hanging lugs connected with the second cover layer are sleeved on the head, and the nasal part air suction cavity can still be used for isolating the outside in the dining process.

Furthermore, a fresh air mechanism for providing filtered air into the mask is arranged at the position above the nose bridge after the first mask layer is worn.

Drawings

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

fig. 2 is a schematic view of a vertical cross-sectional structure of the spliced mask in embodiment 1 of the present invention;

FIG. 3 is a schematic top view of the transverse diaphragm of FIG. 1;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 5 is a schematic view of the structure of the elastic valve of example 1 of the present invention;

fig. 6 is a schematic structural view of a cylindrical fixing seat in embodiment 2 of the present invention;

FIG. 7 is a schematic structural view of a check valve mechanism in embodiment 2 of the invention;

FIG. 8 is a schematic view of another vertical cross-sectional structure of the splicing mask of the embodiment of the invention;

FIG. 9 is a schematic view of another vertical cross-sectional structure of the splicing mask of the embodiment of the invention;

fig. 10 is a schematic structural view of a spliced mask in which hangers are respectively arranged on the upper part and the lower part of the mask body according to the embodiment of the invention.

Fig. 11 is a schematic structural view of a spliced mask in embodiment 6 of the present invention;

fig. 12 is a schematic structural view of a fresh air mechanism in embodiment 6 of the present invention.

Detailed Description

The technical scheme of the invention is described in detail in the following with reference to the accompanying drawings.

Example 1

An embodiment of a splicing mask is shown in figures 1-5, and comprises a mask body and hanging lugs 7, wherein the mask body is formed by splicing a first mask layer 1 with the upper filtering efficiency of more than or equal to 95 percent and a second mask layer 2 with the lower filtering efficiency of more than or equal to 30 percent and less than or equal to 90 percent, in the embodiment, the first mask layer 1 with the filtering efficiency of 99 percent and the second mask layer 2 with the lower filtering efficiency of 90 percent are spliced, the splicing part of the first mask layer 1 and the second mask layer 2 is fixedly provided with a transverse diaphragm along the splicing direction, the transverse diaphragm divides the mask body into an upper nasal part breathing cavity and a lower oral part breathing cavity, the second mask layer 2 forms a plurality of folds 16 along the vertical direction, and the edges of two sides and the lower edge of the second mask surface layer are wrapped on an elastic rope 15, the two ends of the elastic rope are respectively and correspondingly fixed at the two ends of the splicing part at the middle part of the mask body, a one-way valve mechanism 11 which only allows airflow to flow from the nasal part inspiration cavity to the oral part expiration cavity is arranged on the transverse diaphragm, the transverse diaphragm is provided with an inosculating surface matched with the shape of the face between the mouth and the nose, and the middle part of the inosculating surface is provided with a W-shaped continuous cambered surface 8 matched with the human middle part of the face. In this embodiment, the cross section of the transverse diaphragm is rectangular, and is made of a composite layer with hard outside and soft inside, specifically, the transverse diaphragm includes an outer layer of hard plastic 3 and a silica gel layer or a hydrogel layer adhered to the hard plastic or a strip-shaped airbag made of an elastic material, in this embodiment, the hard plastic is a polyvinyl chloride plate, and the hydrogel layer 4 is adhered to the polyvinyl chloride plate. Be equipped with on the polyvinyl chloride board along the through-hole 10 that extends of upper and lower direction, the bottom of through-hole is located to check valve mechanism 11, and check valve mechanism is the one end elasticity valve that is fixed in the through-hole bottom that bonds, and elasticity valve upper surface is the plane, and the following table has a plurality of parallel arrangement's elasticity muscle 12, and the elasticity muscle is from valve one side to the opposite side by thick attenuation gradually in vertical direction, and thick one end is pasted in through-hole edge department moreover, and the upper surface lid of elasticity valve is established on the through-hole.

The concatenation gauze mask of this embodiment, when wearing, transverse diaphragm pastes between the mouth and nose, the nasal part that will breathe the chamber and divide into the top breathes in the chamber and the oral part breathing chamber of below, when speaking, mandible and peripheral muscle are in the motion, pull second gauze mask surface course through the elastic cord, because second gauze mask surface course forms a plurality of folds in vertical direction, therefore, the second top coat is at the extension, the shrink in-process still tightly pastes at face, because transverse diaphragm's supporting role, the extension of second top coat, shrink can not influence basically and obtain first top coat, throw away and to guarantee hugging closely of the nasal part breathing chamber and face that first top coat formed. In addition, when breathing in with the nose, the air gets into the nasal part chamber of breathing in after first mouth top facing layer filters, the gaseous unable nasal part chamber of breathing in that gets into of oral area breathing chamber, when the nose breathes out, most gaseous passing through check valve mechanism inlet port portion chamber of breathing in, and in second gauze mask surface course entering environment, the pressure when having reduced the intrinsic expiration of nasal part chamber of breathing in, further prevent to exhale from not adding filterable exhaling from department such as nosewing, the condition emergence of having avoided steam upwards to get into the lens from the nasal part, the crowd who especially adapted to wear glasses uses. Because the filtration efficiency requirement to the second gauze mask surface course reduces, the comparison that the second gauze mask surface course can be done is thin and the gas permeability is good, makes things convenient for the air current to see through from the second gauze mask surface course, reduces and extrudes the risk from the gauze mask gap, can reduce the cost of gauze mask moreover.

Meanwhile, the diaphragm is provided with an inosculating surface matched with the shape of the face between the mouth and the nose, and the middle part of the inosculating surface is provided with a W-shaped continuous cambered surface matched with the human middle part of the face, so that the diaphragm is more attached to the upper lip and the gas exhaled from the oral exhalation cavity is prevented from entering the nasal inhalation cavity; the transverse diaphragm is made of a composite layer which is hard outside and soft inside, the composite layer comprises hard plastic on the outer layer and a silica gel layer or a hydrogel layer which is bonded on the hard plastic or a strip-shaped air bag which is made of elastic material, thus, the hard plastic can keep the supporting function of the transverse diaphragm, and the silica gel layer or the hydrogel layer or the strip-shaped air bag which is made of the elastic material can be well and comfortably attached to the upper lip between the mouth and the nose.

Example 2

Different from the embodiment 1, the transverse diaphragm is made of soft materials such as silica gel elastic materials, hydrogel materials and the like; the transverse diaphragm is provided with a through hole extending along the up-down direction, and a one-way valve mechanism only allowing airflow to flow downwards is arranged in the through hole, as shown in fig. 6-7, the one-way valve mechanism comprises a hard cylindrical fixing seat 14 fixed in the through hole in an inserting manner and an elastic valve 13 with one end fixed at the bottom of the cylindrical fixing seat and covered at the bottom of the cylindrical fixing seat.

Example 3

Different from the above embodiment, as shown in fig. 8, the transverse diaphragm has an H-shaped cross section, and includes an inner end portion 5 connected to the mask body, an outer end portion 9 adapted to the shape of the face between the nose and the mouth, and a connecting portion connecting the inner end portion and the outer end portion, the inner end portion 5 is widened to better fit the skin of the face between the nose and the mouth, and air leakage is prevented, and the outer end portion 9 increases the contact surface, so that the mask body is more firmly bonded and fixed.

Example 4

Different from the above embodiment, as shown in fig. 9, the hanging lugs 17 are respectively arranged at the upper part and the lower part of the mask body, and when the mask is worn, the hanging lugs are transversely sleeved on the head, so that the second mask layer 2 can be turned upwards to the first mask layer 1 when a user has a meal, and then the hanging lugs connected with the first mask layer are sleeved on the head, and the nasal air suction cavity can still be used for isolating the outside during the meal.

Example 5

Unlike the previous embodiment, as shown in fig. 10, the transverse diaphragm does not have a vent hole and a one-way valve, and separates the first mask layer and the second mask layer into independent cavities with air flows not communicated with each other, so that the air can be inhaled through the nose and exhaled through the mouth.

In other embodiments, unlike the previous embodiments, the transverse diaphragm is made of rigid plastic; in other embodiments, unlike the previous embodiments, the transverse septum is made of a silicone elastomer or hydrogel material.

Example 6

Different from the above embodiment, as shown in fig. 11 and 12, a fresh air mechanism 18 for providing filtered air to the mask is disposed at a position above the nose bridge after the first mask layer is worn, the fresh air mechanism includes a housing 19 fastened and fixed on the mask body by bonding and sealing, a variable frequency fan 27 disposed in the housing, an air pressure sensor 29, a controller (not shown in the figure) and a rechargeable battery 24, the controller is connected to the air pressure sensor 29 in a sampling manner, the controller is connected to the variable frequency fan 27 in a control manner, a fan fixing structure inserted in the mask body is disposed in the housing 19, the fan fixing structure includes a tubular ventilation pipe 30 inserted in the mask body, a fan support 21 disposed in the tubular ventilation pipe, an air inlet cover fastened at an outer end of the tubular ventilation pipe, and the variable frequency fan 27 fixed inside the fan support, one side of the tubular ventilation pipe has a battery mounting groove 23 for accommodating the rechargeable battery and a control unit for mounting the controller and/or the The containing groove 28, the controller and the air pressure sensor are all arranged in the control unit installing groove 15 in the embodiment, the detection end of the air pressure sensor is inserted inside the first mask layer, and the filter layer 20 is arranged between the air inlet cover and the fan support.

The inner wall of the outer end of tube-shape ventilation pipe is the step form (not shown in the picture), including the big diameter section in the outside and the inboard little diameter section, the filter layer matches the cooperation with big diameter section, the air inlet lid including foraminiferous lid 25a and with lid body coupling's tube-shape lateral wall 22, have a plurality of slots 25b on the foraminiferous lid, be equipped with circular clamping ring an on foraminiferous lid 25 a's the internal surface, the internal diameter of circular clamping ring is greater than the diameter of little diameter section just the external diameter of circular clamping ring is less than the diameter of big diameter section, establishes at the air inlet lid during tube-shape ventilation pipe outer end, circular clamping ring will filter layer top pressure on the terminal surface between big, little diameter section, the inner of tube-shape ventilation pipe is still covered and is established the air-out lid 26 that have a plurality of exhaust vents 26 a.

It should be noted that the battery mounting groove 23 and the control unit mounting groove 28 are both injection-molded and encapsulated, and have waterproof capability, and the variable frequency fan is a waterproof variable frequency fan capable of running underwater.

The concatenation gauze mask of this embodiment, the position that is located the bridge of the nose top after wearing on the first gauze mask face layer is equipped with a new trend mechanism, in the time of the use, new trend mechanism passes through the bridge of the nose and supports, gauze mask both sides atress inhomogeneous can not appear, the crooked phenomenon of deformation appears easily, new trend mechanism presses on the bridge of the nose simultaneously, frictional force between the cover body and the bridge of the nose has been increased, make the gauze mask locate with facial laminating inseparabler at the bridge of the nose, the air current that this inverter motor produced in this position is along the breathing zone that the nose presss from both sides direct entering nose, the air feed is effectual, new trend mechanism compact structure, the leakproofness.

It should be noted that the filtration efficiency of the present invention refers to the filtration efficiency described in GB19083-2003 "technical requirements for medical protective masks" and YY 0469-2004 "technical requirements for medical surgical masks".

Claims

1. Concatenation gauze mask, including the cover body, its characterized in that: the mask body is formed by splicing a first mask layer with the filtering efficiency of more than or equal to 95% above and a second mask layer with the filtering efficiency of more than or equal to 30% below and less than or equal to 90%, a transverse diaphragm is fixedly arranged at the splicing position of the first mask layer and the second mask layer along the splicing direction, the transverse diaphragm divides the mask body into a nose air suction cavity above and an oral air breathing cavity below, the second mask layer forms a plurality of folds in the vertical direction, the two side edges and the lower edge of the second mask layer are wrapped on an elastic rope, and the two ends of the elastic rope respectively correspond to and are fixed at the two ends of the splicing position in the middle of the mask body.

2. The splicing mask of claim 1, wherein: the transverse diaphragm is provided with an inosculating surface matched with the shape of the face between the mouth and the nose, and the middle part of the inosculating surface is provided with a W-shaped continuous cambered surface matched with the human middle part of the face.

3. The splicing mask of claim 1 or 2, wherein: the transverse diaphragm is made of hard material or elastic soft material or composite layer with hard outer part and soft inner part, and a one-way valve mechanism which only allows airflow to flow from the nose breathing cavity to the mouth breathing cavity is arranged on the transverse diaphragm.

4. The splicing mask of claim 1 or 2, wherein: the transverse diaphragm is made of a hard material or an elastic soft material or a composite layer with hard outside and soft inside, and divides the first mask surface layer and the second mask surface layer into independent cavities with airflow not communicated with each other.

5. The splicing mask of claim 3, wherein: the transverse diaphragm is made of a composite layer with hard outside and soft inside, and the composite layer comprises hard plastic on the outer layer and a silica gel layer or a hydrogel layer adhered to the hard plastic or a strip-shaped air bag made of an elastic material.

6. The splicing mask of any one of claim 3, wherein: the transverse diaphragm is made of soft materials and is provided with a through hole extending in the up-down direction, and the one-way valve mechanism comprises a hard cylindrical fixing seat fixed in the through hole in an inserting mode and an elastic valve, wherein one end of the elastic valve is fixed at the bottom of the cylindrical fixing seat and covers the bottom of the cylindrical fixing seat.

7. The splicing mask of claim 5, wherein: the hard part of the transverse diaphragm is provided with a through hole extending along the up-down direction, and the one-way valve mechanism is an elastic valve with one end fixed at the bottom of the through hole in a bonding manner.

8. The splicing mask of claim 1 or 2 or 5 or 6 or 7, wherein: the cross section of the transverse diaphragm is H-shaped and comprises an inner end part connected with the cover body, an outer end part matched with the shape of the face between the mouth and the nose, and a connecting part connecting the inner end part and the outer end part.

9. The splicing mask of claim 1 or 2 or 5 or 6 or 7, wherein: the hangers are respectively arranged at the upper part and the lower part of the cover body.

10. The splicing mask of claim 1 or 2 or 5 or 6 or 7, wherein: and a fresh air mechanism for providing filtered air into the mask is arranged at the position above the nose bridge after the first mask layer is worn.