CN113261722A

CN113261722A - Metal surface frame for compressing mask

Info

Publication number: CN113261722A
Application number: CN202110561864.0A
Authority: CN
Inventors: 熊长伦
Original assignee: Shenzhen Nateni Technology Co ltd
Current assignee: Shenzhen Nateni Technology Co ltd
Priority date: 2021-05-23
Filing date: 2021-05-23
Publication date: 2021-08-17

Abstract

The invention discloses a metal face frame for compressing a mask, which comprises a face frame body, wherein the face frame body is provided with a sealing piece, the face frame body is provided with a hanging rope mounting structure, the face frame body is an annular metal plate, the strength of the metal plate is set to be that an adult can bend the metal plate to change the shape of the metal plate so as to enable the metal plate to be attached to a face, the metal plate can be pulled by an elastic band so as to prevent the elastic band from pulling and deforming the metal plate, and a user can bend the metal plate into a shape matched with the face for use. Through setting up the face frame body into the metal sheet, bend into the shape of laminating roughly with face earlier the metal sheet during use, reuse liquid gasbag or flexible glue body fill remaining clearance to make gauze mask and human face fully laminate, thereby stop gaseous clearance business turn over from between face and the gauze mask.

Description

Metal surface frame for compressing mask

Technical Field

The invention relates to the technical field of medical instruments and labor protection articles, in particular to a metal face frame for compressing a mask.

Background

A plurality of masks are available in medical treatment, some masks are anti-virus and some masks are dustproof, but the existing masks are not tightly attached to the face of a human body, so that dust and viruses enter respiratory tracts to cause the masks to lose due functions. At present, the problem has been noticed, and some measures have been taken, such as the mask is provided with an iron clip at the nose bridge, and the iron clip is pinched when the mask is worn to fit the nose bridge, but the iron clip will loosen and fatigue, and the iron clip cannot completely prevent dust and virus from entering from the gap between the mask and the face. The iron clip obviously cannot make the gap between the mask and the face to be in a micron level matched with the filtering capacity of the mask.

For example, in china, some medical staff wear a four-layer mask to prevent virus inhalation, but the mask still becomes infected with virus as a result, and the reason for this is that the mask is not well protected, but after wearing the four-layer mask, the ventilation capacity of the mask is poor, so that air directly enters from the gap between the mask and the face, which is worse than the effect of wearing a one-layer mask.

Because the shapes of human faces are different, the nose bridge of eastern people is lower, and the nose bridge of western people is higher, so that the mask is difficult to completely fit with the faces of everyone.

The existing mask is worn on the head by an elastic band, so that the mask is tightly attached to the face, only one part of the mask in front of the oral cavity is separated from the face, only the part can ventilate, and the rest parts cannot ventilate because the mask is tightly attached to the face, so that a user feels unsmooth breathing.

In a word, the existing mask is required to be worn more, the problem that the mask is simple is solved simply, the mask is not made according to the requirement, most people do not know how to wear the mask correctly, and even if the mask is worn according to the requirement, the mask is loosened by actions of speaking, coughing and the like, a gap is formed between the mask and the face, and the mask is also out of action. The mask wearing requirement is simplified, and only one face frame is needed to wear.

The mask is provided with the metal strip and the hanging rope, so that the production process is complex, and the mask can not be supplied when epidemic outbreak occurs.

Disclosure of Invention

The invention aims to provide a metal face frame for compressing a mask, and solves the problems of sealing the mask and the face and complex mask production process.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a metal face frame for compressing tightly gauze mask, including the face frame body that can surround the oronasal position, the face frame body is provided with and is used for compressing tightly the gauze mask the sealing member on human face, the middle part of face frame body is provided with the breathing passage who is used for the air business turn over, the face frame body is connected with the sealing member, the face frame body is provided with and is used for hanging rope mounting structure with the overhead rope of cover or elastic cord is connected, the face frame body is annular metal sheet, the user can be bent into the metal sheet and use after the shape that matches with face, the face frame body, sealing member and gauze mask, human face is placed from outside to inside in proper order.

In the structure, the sealing element is a soft colloid or a liquid air bag with a cavity inside.

In the structure, the strength of the metal plate is set to be that an adult can bend the metal plate to change the shape of the metal plate so as to enable the metal plate to be attached to the face, and the metal plate can be pulled by the elastic band to prevent the elastic band from pulling and deforming the metal plate.

In the above structure, the liquid air bag is used after filling the cavity with gas and/or liquid whose volume at normal temperature and normal pressure is smaller than the maximum volume of the cavity at normal temperature and normal pressure or filling the cavity with gas and/or liquid without filling the gas and/or liquid but indicating that the volume at normal temperature and normal pressure is smaller than the maximum volume of the cavity at normal temperature and normal pressure.

In the above structure, the volume of the gas and/or liquid filled in the cavity of the liquid air bag at normal temperature and normal pressure is one sixth to five sixths of the maximum volume of the cavity filled at normal temperature and normal pressure, or the liquid and/or gas are not filled, but the gas and/or liquid filled in the cavity at normal temperature and normal pressure is one sixth to five sixths of the maximum volume of the cavity filled at normal temperature and normal pressure.

In the above structure, the volume of the gas and/or liquid filled in the cavity of the liquid air bag at normal temperature and normal pressure is one third to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure, or the liquid and/or gas are not filled, but the volume of the gas and/or liquid filled in the cavity at normal temperature and normal pressure is one third to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure.

In the above structure, the volume of the gas and/or liquid filled in the cavity of the liquid air bag at normal temperature and normal pressure is one half to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure, or the liquid and/or gas are not filled, but the volume of the gas and/or liquid filled in the cavity at normal temperature and normal pressure is one half to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure.

In the above structure, the volume of the gas and/or liquid filled in the cavity of the liquid air bag at normal temperature and normal pressure is one third to one half of the maximum volume of the cavity filled at normal temperature and normal pressure or the liquid and/or gas are not filled, but the volume of the gas and/or liquid filled in the cavity at normal temperature and normal pressure is one third to one half of the maximum volume of the cavity filled at normal temperature and normal pressure.

In the above structure, the gas and/or liquid filled in the cavity of the liquid air bag is air.

In the structure, the liquid air bag is a life buoy-shaped annular body with an annular cavity in the middle or an annular bag body formed by enclosing one or more bag bodies.

In the above structure, the liquid air bag may be provided as a multilayer bag body in which a plurality of bag bodies are stacked together.

In the structure, the face frame body is connected with the liquid air bag through the connecting belt.

In the structure, the connecting band comprises a band ring sleeved on the periphery of the liquid air bag and a tail band fastened on the mask body, the circumference of the band ring is larger than that of the cross section of the liquid air bag, and the tail band penetrates through the connecting band hole in the face frame body to fix the liquid air bag on the face frame body.

In the structure, the connecting hole is arranged in the middle of the face frame body.

In the structure, the face frame body is provided with the suspension structure for suspending the mask, and the mask can be suspended on the face frame body through the suspension structure.

In the above structure, the suspension structure is a suspension column, and the suspension column may be an L-type suspension column and/or a U-type suspension column and/or a hook-type suspension column and/or an I-type suspension column.

In the structure, the substance filled in the cavity of the liquid air bag is a solid in a high elastic state at normal temperature.

In the structure, the hanging rope mounting structure is a hanging hole.

In the above structure, the liquid air bag is an elastic bag body.

In the structure, the liquid air bag is provided with an inflation hole for inflating gas or liquid into the cavity of the liquid air bag.

In the structure, the inflation hole in the liquid air bag is provided with an air pipe which is used for being tightly tied by a rope for sealing, and the hole wall of the inflation hole is connected with the air pipe.

In the structure, the air pipe is also connected with an air-entrapping balloon for entrapping air.

In the structure, a one-way valve is arranged between the air pipe and the air outlet of the air-entrapping balloon.

In the structure, the air-entrapping balloon is provided with a one-way valve at the air inlet of the air-entrapping balloon.

In the structure, the liquid air bag inflation device further comprises an air plug used for sealing the liquid air bag inflation hole, the air plug is provided with an air plug head, an air plug neck and an air plug bottom, the air plug head is inserted into the inflation hole, and the air plug head is provided with a chamfer convenient to insert.

In the structure, the diameters of the head part, the neck part and the bottom part of the air plug are larger than the diameter of the inflation hole.

In the above structure, the sealing member is an annular soft colloid.

In the structure, at least one end of the elastic band is directly or indirectly detachably connected with the face frame body.

In the above structure, the elastic band is a head-wearing elastic band.

In the structure, one end of the elastic band is fixedly connected with the face frame body, and the other end of the elastic band is directly or indirectly detachably connected with the face frame body.

In the structure, the right end of the elastic band is fixedly connected with the face frame body, and the left end of the elastic band is directly or indirectly detachably connected with the face frame body.

In the structure, the left end of the elastic band is fixedly connected with the face frame body, and the right end of the elastic band is directly or indirectly detachably connected with the face frame body.

In the structure, a short belt is arranged between the face frame body and one end of the elastic belt, the elastic belt and the short belt are fixedly connected with the face frame body, and the elastic belt and the short belt are detachably connected.

In the above structure, the short belt is provided so as not to be stretchable.

In the structure, the detachable connection is a hook connection, the hook connection comprises a hook and a hanging ring, the hook is arranged on the elastic belt, the hanging ring is arranged on the face frame body, or the hook is arranged on the face frame body, and the hanging ring is arranged on the elastic belt.

In the structure, the detachable connection is a hook connection, the hook connection comprises a hook and a hanging ring, the hook is arranged on the elastic belt, the hanging ring is arranged on the short belt, or the hook is arranged on the short belt, and the hanging ring is arranged on the elastic belt.

In the structure, the detachable connection is snap-fastener connection, the snap-fastener connection comprises a male buckle and a female buckle, the male buckle is arranged on the elastic belt, the female buckle is arranged on the face frame body, or the male buckle is arranged on the face frame body, and the female buckle is arranged on the elastic belt.

In the structure, the detachable connection is snap connection, the snap connection comprises a male buckle and a female buckle, the male buckle is arranged on the elastic belt, the female buckle is arranged on the short belt or the male buckle is arranged on the short belt, and the female buckle is arranged on the elastic belt.

In the structure, the face frame body is connected with one end of the elastic band through two short bands, and the other end of the face frame body is connected with the other end of the elastic band through two short bands.

In the structure, the face frame body is fixedly connected with the elastic band after the two short bands are connected together at one end of the elastic band, and the face frame body is detachably connected with the elastic band after the two short bands are connected together at the other end of the elastic band.

In the structure, the sealing element is connected with the face frame body through the cloth barrel, the cloth barrel is a thin-wall cloth pipe, and the cloth pipe is annular or is long-strip-shaped with openings at two ends.

In the structure, the width of the metal plate is more than or equal to half of the circumference of the cross section of the cloth pipe.

In the structure, the cloth tube further comprises a cloth tube sewing edge used for being connected with the face frame body, and the cloth tube is connected with the face frame body through the cloth tube sewing edge.

In the structure, the liquid air bag is a thin-walled strip-shaped liquid air bag with a strip-shaped cavity in the middle, the liquid air bag penetrates through the cloth pipe, is tightly tied end to end, sealed and connected into a ring, and the two ends of the cloth pipe are opened.

In the structure, the cloth tube is also provided with a zipper so as to open the cloth tube to install the liquid air bag.

In the structure, the liquid air bag is a thin-walled annular liquid air bag with an annular cavity in the middle.

In the structure, the face frame body is provided with a positioning structure for positioning the mask, and the mask can be positioned in the middle of the face frame body through the positioning structure.

In the above structure, the positioning structure is a positioning column.

In the above structure, the positioning structure and the metal plate form an obtuse angle.

In the structure, the hanging rope mounting structure and the metal plate form an obtuse angle.

In the above structure, the suspension structure forms an obtuse angle with the metal plate.

In the above structure, the strength of the metal plate is selected to be an upper limit value.

In the structure, the metal plate is a flat plate, and a user can bend the metal plate into a shape matched with the face for use.

In the structure, the cloth tube further comprises a cloth belt connected with the face frame body, and the middle part of the cloth belt is connected with the cloth pipe.

In the structure, the metal plate is connected with the cloth belt through the magic tape, the male surface of the magic tape is arranged on the metal plate, the female surface of the magic tape is arranged on the cloth belt, or the male surface of the magic tape is arranged on the cloth belt, and the female surface of the magic tape is arranged on the metal plate.

The utility model provides a metal covering frame for compressing tightly gauze mask, including the face frame body that can enclose mouthful nose position, the middle part of face frame body is provided with the breathing passage who is used for the air business turn over, face frame body is provided with and is used for hanging the rope mounting structure with overhead rope or elastic cord connection of cover, face frame body is annular metal sheet, the intensity of metal sheet sets up to the shape that adult can bend the metal sheet and change the metal sheet and make metal sheet and facial laminating and metal sheet can stand the elastic cord and pull in order to avoid the elastic cord to pull the metal sheet and warp, face frame body and gauze mask, human face is placed from outside to inside in proper order.

In the structure, the face frame body is provided with the cloth tube for installing the sealing element, the face frame body is connected with the cloth tube, the cloth tube is a thin-wall cloth tube, the cloth tube is annular or is long-strip-shaped, and the face frame body, the cloth tube, the mask and the human face are sequentially placed from outside to inside.

In the structure, the cloth cylinder further comprises a cloth belt used for being connected with the face frame body, the middle of the cloth belt is connected with the cloth pipe, the metal plate is connected with the cloth belt through the magic tape, the male surface of the magic tape is arranged on the metal plate, the female surface of the magic tape is arranged on the cloth belt, or the male surface of the magic tape is arranged on the cloth belt, the female surface of the magic tape is arranged on the metal plate, the metal plate is flat, and a user can bend the metal plate to be matched with the face to be used after the shape is matched.

In the above structure, the liquid air cell may be configured as a cell body composed of a plurality of small cell bodies.

In the above structure, the liquid air bag may be provided as a multilayer bag body in which a plurality of same bag bodies are stacked together.

In the structure, the face frame body can be bent to be suitable for the face shape of ordinary people.

In the structure, the metal plate is a flat plate which is made of non-elastic metal and provided with a breathing passage in the middle.

In the structure, the bending structure which is beneficial to bending is arranged in the middle of the face frame body. The bending structure is a bending hole.

The beneficial effect of adopting above-mentioned technical scheme is: set up to the metal sheet through setting up the face frame body, and set up the intensity of metal sheet into the shape that adult can bend the metal sheet and change the metal sheet and make metal sheet and facial laminating and metal sheet can stand the elastic cord and pull in order to avoid the elastic cord to pull the metal sheet and warp, bend into the metal sheet during use with the shape of facial laminating roughly, reuse liquid gasbag or flexible glue body come to fill remaining clearance, thereby make gauze mask and human facial abundant laminating, thereby stop gaseous clearance business turn over from between facial and the gauze mask.

In short, the metal face frame of the invention is not worn, the gap between the mask and the face can be centimeter-level, the protective effect of the mask is centimeter-level, the filtering capacity of the mask is no longer useful, and when the metal face frame of the invention is worn, the gap between the mask and the face is almost zero, and the protective capacity of the mask is equal to the filtering capacity of the mask, namely micron-level.

In addition, the mask has low production capacity due to the fact that the metal strips and the hanging ropes are arranged at present, the mask matched with the mask, provided by the invention, is free of the metal strips and the hanging ropes, the process is simple, and the production capacity is greatly improved.

When the mask is used, the metal plate is bent into a shape which is approximately attached to the face, particularly the shape of the bridge of the nose, the remaining gap is filled by the liquid air bag or the soft colloid, and then the metal face frame is worn on the head, so that the mask can be tightly pressed on the face by the metal face frame.

Drawings

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

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of another aspect of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a perspective view of the present invention after bending;

FIG. 5 is a schematic view of a hook connection;

FIG. 6 is a schematic view of a single elastic band;

FIG. 7 is a schematic view of a snap connection;

FIG. 8 is a perspective view of a drapeable mask;

FIG. 9 is a perspective view of the interface tape;

FIG. 10 is a schematic view of a single liquid bladder enclosing a ring;

FIG. 11 is a perspective view of the air lock;

FIG. 12 is a perspective view of a cloth tube;

FIG. 13 is a perspective view of a multi-layer cloth tube;

FIG. 14 is a schematic view of the tube arrangement in assembly with a liquid bladder;

FIG. 15 is a schematic view of an alternative assembly of the cloth tube and liquid air bag;

figure 16 is an exploded view of the assembly of the cloth belt and the magic tape;

FIG. 17 is a view showing the structure of a suspension post;

FIG. 18 is a perspective view of a cloth tube with cloth tapes;

FIG. 19 is a schematic view of yet another assembly of the cloth tube and liquid air bag.

In the figure, 1-face frame body, 2-liquid air bag, 3-elastic band, 4-connecting band, 5-sealing piece, 6-connecting band hole, 7-hanging band hole, 8-inflation hole, 9-air pipe, 10-air plug, 11-band loop, 12-tail band, 13-hanging column, 14-short band, 15-hook, 16-hanging ring, 17-male buckle, 18-mask, 19-female buckle, 20-cloth tube, 21-cloth tube, 22-cloth tube sewing edge, 23-positioning column, 24-cloth band, 25-male surface, 26-female surface, 27-hanging hole and 28-bending hole.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

Referring to the attached drawings, a metal face frame for compressing a mask comprises a face frame body 1 capable of surrounding a mouth nose part, a sealing piece 5 used for compressing the mask on the face of a human body is arranged on the face frame body 1, a breathing passage used for air to enter and exit is arranged in the middle of the face frame body 1, the face frame body 1 is connected with the sealing piece 5, a hanging rope mounting structure used for connecting a rope or an elastic band 3 sleeved on a head is arranged on the face frame body 1, the face frame body 1 is an annular metal plate, the strength of the metal plate is set to be that an adult can bend the metal plate to change the shape of the metal plate so as to enable the metal plate to be attached to the face and prevent the elastic band from pulling and deforming the metal plate, the user can bend the metal plate into a shape matched with the face for use, the face frame body 1, the sealing piece 5 and the mask 17, the human face is placed from outside to inside in sequence.

Preferably, the sealing member 5 is a soft gel or a liquid-gas bag 2 with a cavity inside.

Preferably, the liquid gas cell 2 is used after filling the cavity with gas and/or liquid having a volume at normal temperature and normal pressure smaller than the maximum volume of the cavity at normal temperature and normal pressure or filling the cavity with gas and/or liquid without filling the cavity with gas and/or liquid having a volume at normal temperature and normal pressure smaller than the maximum volume of the cavity at normal temperature and normal pressure. The maximum radius of the liquid air bag 2 is R after the liquid air bag is filled with liquid or gas, so that the liquid air bag 2 can be filled in gaps between 0 and 2R.

The liquid air bag 2 is filled with gas and/or liquid in the cavity, and the volume of the gas and/or liquid filled in the cavity of the liquid air bag 2 at normal temperature and normal pressure is smaller than the maximum volume of the cavity which can be filled at normal temperature and normal pressure. For example, the maximum volume that can be filled inside the liquid-gas bag 2 means the volume of the inner cavity of the liquid-gas bag 2 when the pressure of gas and/or liquid inside the liquid-gas bag 2 is equal to one atmosphere and the temperature is 20 ℃, that is, the volume of water that can be filled in the liquid-gas bag 2 at most, and the atmosphere is the atmospheric pressure measured at the location of the manufacturer. When in use, the volume of the gas and/or liquid filled in the cavity of the liquid air bag 2 under normal temperature and normal pressure is less than the maximum volume of the cavity which can be filled under normal temperature and normal pressure. This is because the liquid-gas bag 2 is a non-elastic sealed bag body, and if it is elastic, the gas volume in the liquid-gas bag 2 is uncertain, and the whole liquid-gas bag 2 can be filled. That is, if the liquid-gas cell 2 is elastic, the gas and/or liquid therein may be unfilled, and the amount of inflation gas and/or liquid may be selected from one third to one half, filled, or even over-inflated, so that the pressure in the liquid-gas cell 2 is greater than a standard atmospheric pressure. Normal temperature and pressure mean a standard atmospheric pressure and a temperature of 20 ℃. For example, the gas and/or liquid filled in the cavity of the liquid air bag 2 can be gas, liquid or liquid plus gas, and the volume of the gas and/or liquid filled in the cavity of the liquid air bag refers to the sum of the volumes of the gas and the liquid, the volume of the gas with gas, the volume of the liquid with liquid, and the sum of the volumes of the gas and the liquid with both the gas and the liquid. The substance filled in the cavity of the liquid air bag 2 can also be a solid in a high elastic state at normal temperature, the high elastic material can also flow or deform to the other side under pressure, and other soft solid materials comprise sponge, silica gel and the like.

Preferably, the liquid gas cell 2 is used after filling the cavity with gas and/or liquid at normal temperature and normal pressure in a volume of one sixth to five sixths of the maximum volume of the cavity filled at normal temperature and normal pressure or filling the cavity with gas and/or liquid without filling the gas and/or liquid but indicating that the cavity is filled with gas and/or liquid at normal temperature and normal pressure in a volume of one sixth to five sixths of the maximum volume of the cavity filled at normal temperature and normal pressure. When in use, the volume of the gas and/or liquid filled in the cavity of the liquid air bag 2 under normal temperature and pressure is one sixth to five sixths of the maximum volume which can be filled in the cavity under normal temperature and pressure, and the gas can be filled before sale or when being used by customers. Because the liquid air bag 2 is not full of air, the liquid air bag 2 can be swelled at the concave part of the human body under the action of small external force, and can be shrunken at the convex part of the human body, so that the face frame body 1 is fully attached to the human body, and the face frame is completely sealed. If the liquid air bag 2 is elastic, the liquid air bag 2 can be filled with gas and/or liquid, but the external force required for making the face frame body 1 fully attached to the human body is larger. Of course, the volume of the gas and/or liquid filled in the cavity of the liquid air bag 2 at normal temperature and normal pressure is other proportion, such as two thirds, of the maximum volume of the cavity which can be filled at normal temperature and normal pressure.

Preferably, the liquid gas cell 2 is used after filling the cavity with gas and/or liquid at normal temperature and normal pressure, the volume of which is one third to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure or filling the cavity with gas and/or liquid without filling the gas and/or liquid, but indicating that the volume of the gas and/or liquid filled at normal temperature and normal pressure is one third to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure.

Preferably, the liquid gas cell 2 is used after filling the cavity with gas and/or liquid at normal temperature and normal pressure, the volume of which is one half to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure or filling the cavity with gas and/or liquid without filling the gas and/or liquid, but the volume of which is one half to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure.

Preferably, the liquid gas cell 2 is used after filling the cavity with gas and/or liquid at normal temperature and normal pressure, the volume of which is one third to one half of the maximum volume of the cavity filled at normal temperature and normal pressure or filling the cavity with gas and/or liquid without filling the gas and/or liquid, but indicating that the volume of the gas and/or liquid filled at normal temperature and normal pressure is one third to one half of the maximum volume of the cavity filled at normal temperature and normal pressure.

Preferably, the gas and/or liquid filled in the cavity of the liquid gas bag 2 is air. The gas and/or liquid in the liquid bag 2 can be a liquid with high viscosity, so that the requirement on the material of the liquid bag 2 is not high, and water can also be used, and air is better used, so that the cost is low, and the advantage of water is that some materials can permeate air but not permeate water. The material with air is more demanding than the material with water.

Preferably, the liquid air bag 2 is a life ring-shaped annular body with an annular cavity in the middle or an annular bag body formed by enclosing one or more bag bodies. The plurality of capsules enclose a ring-shaped capsule corresponding to the ring-shaped liquid-gas capsule 2. The liquid air bag 2 and the face frame body 1 can be connected in an adhesive way, or a belt can be arranged to cover the liquid air bag 2 and then be fixed on the face frame body 1.

Preferably, the liquid-gas bag 2 may be provided as a multi-layer bag body in which a plurality of bag bodies are stacked together.

Preferably, the face frame body 1 and the liquid air bag 2 are connected by a connecting band 4.

Preferably, the connecting band hole 6 is provided at a middle portion of the face frame body 1.

Preferably, the connecting band 4 comprises a band 11 for being sleeved on the periphery of the liquid air bag 2 and a tail band 12 for being fastened on the mask body 1, the circumference of the band 11 is larger than that of the cross section of the liquid air bag 2, and the tail band 12 is arranged to penetrate through the connecting band hole 6 on the mask body 1 to fix the liquid air bag 2 on the mask body 1. The tail band 12 is connected with the face frame body 1 through the connecting band hole 6, and can be connected in an adhesive way or in other ways. The tail band 12 can be a wire, and the connecting band hole 6 can be a round hole.

Preferably, the face frame body 1 is provided with a hanging structure for hanging the mask 18, and the mask 18 can be hung on the face frame body 1 by the hanging structure.

Preferably, the hanging structure is a hanging column 13, and the hanging column 13 can be an L-shaped hanging column and/or a U-shaped hanging column and/or a hook-shaped hanging column and/or an I-shaped hanging column.

Preferably, the substance filled in the cavity of the liquid air bag 2 is a solid substance in a high elastic state at normal temperature.

Preferably, the hanging rope mounting structure is a hanging hole 7.

Preferably, the liquid-air bladder 2 is an elastic bladder body.

Preferably, the liquid air cell 2 is provided with an inflation hole 8 for inflating a gas or liquid into its cavity.

Preferably, an air pipe 9 for sealing by fastening a rope is arranged at an air inflation hole 8 in the liquid air bag 2, and the hole wall of the air inflation hole 8 is connected with the air pipe 9. The air charging hole 8 of the liquid air bag 2 is sealed by an air plug 10, or the air charging hole 8 is connected with an air pipe 9 or is provided with a sealing structure like an automobile tire, and the air pipe 9 can be tightened by a rope, and then the air charging hole 8 cannot escape. The air plug 10 is provided with an inserted air plug head, an air plug neck and an air plug bottom, the air plug head is provided with a chamfer convenient to insert, and the diameters of the air plug head, the air plug neck and the air plug bottom are larger than the diameter of the inflation hole 8. The airbag 2 can be provided without an inflation hole 8, and can also be provided with an inflation hole 8. The head of the air plug is inserted into the air charging hole 8, and then the air charging hole 8 can be plugged.

Preferably, the air tube 9 is further connected with an air-entrapping balloon for entrapping air.

Preferably, a one-way valve is arranged between the air pipe 9 and the air outlet of the air-entrapping balloon.

Preferably, the air-entrapping balloon is provided with a one-way valve at an air inlet of the air-entrapping balloon.

Preferably, the gas plug 10 is used for sealing the inflation hole 8 of the liquid air bag 2, the gas plug 10 is provided with a gas plug head part inserted into the inflation hole 8, a gas plug neck part and a gas plug bottom part, and the gas plug head part is provided with a chamfer convenient to insert.

Preferably, the diameter of the head, neck and bottom of the air plug is larger than that of the air filling hole 8.

Preferably, the sealing member 5 is a soft gel in the shape of a ring.

Preferably, at least one end of the elastic band 3 is directly or indirectly detachably connected with the face frame body 1, and the elastic band 3 is a head-wearing elastic band.

Preferably, one end of the elastic band 3 is fixedly connected with the face frame body 1, and the other end is directly or indirectly detachably connected with the face frame body 1.

Preferably, the right end of the elastic band 3 is fixedly connected with the face frame body 1, and the left end is directly or indirectly detachably connected with the face frame body 1.

Preferably, the left end of the elastic band 3 is fixedly connected with the face frame body 1, and the right end is directly or indirectly detachably connected with the face frame body 1.

Preferably, a short belt 14 is arranged between the face frame body 1 and one end of the elastic belt 3, the elastic belt 3 and the short belt 14 are fixedly connected with the face frame body 1, and the elastic belt 3 and the short belt 14 are detachably connected.

Preferably, the short strap 14 is configured to be non-retractable.

Preferably, the detachable connection is a hook connection, the hook connection comprises a hook 15 and a hanging ring 16, the hook 15 is arranged on the elastic band 3, and the hanging ring 16 is arranged on the face frame body 1 or the hook 15 is arranged on the face frame body 1 and the hanging ring 16 is arranged on the elastic band 3.

Preferably, the detachable connection is a hook connection, the hook connection comprises a hook 15 and a hanging ring 16, the hook 15 is arranged on the elastic band 3 and the hanging ring 16 is arranged on the short band 14 or the hook 15 is arranged on the short band 14 and the hanging ring 16 is arranged on the elastic band 3.

Preferably, the detachable connection is a snap connection, the snap connection comprises a male buckle 17 and a female buckle 19, the male buckle 17 is arranged on the elastic band 3 and the female buckle 19 is arranged on the face frame body 1 or the male buckle 17 is arranged on the face frame body 1 and the female buckle 19 is arranged on the elastic band 3.

Preferably, the detachable connection is a snap connection comprising a male buckle 17, a female buckle 19, the male buckle 17 being provided on the elastic band 3 and the female buckle 19 being provided on the pony band 14 or the male buckle 17 being provided on the pony band 14 and the female buckle 19 being provided on the elastic band 3.

Preferably, the face frame body 1 is connected with one end of the elastic band 3 through two short bands 14, and the other end is connected through two short bands 14.

Preferably, the face frame body 1 is fixedly connected with the elastic band 3 after being connected with one end of the elastic band 3 through the two short bands 14, and the face frame body 1 is detachably connected with the elastic band 3 after being connected with the other end of the elastic band 3 through the two short bands 14, as shown in fig. 6.

Preferably, the sealing element 5 is connected with the face frame body 1 through a cloth tube 20, the cloth tube 20 is a thin-wall cloth tube 21, and the cloth tube 21 is annular or the cloth tube 21 is long-strip-shaped with openings at two ends.

Preferably, the width of the metal plate is greater than or equal to half of the circumference of the cross section of the cloth tube 21.

Preferably, the cloth tube 20 further comprises a cloth tube sewing edge 22 for connecting with the face frame body 1, and the cloth tube 21 is connected with the face frame body 1 through the cloth tube sewing edge 22.

Preferably, the cloth tube 20 is provided with the liquid air bag 2, the liquid air bag 2 is a thin-walled strip-shaped liquid air bag with a strip-shaped cavity in the middle, the liquid air bag 2 penetrates through the cloth tube 21, then the liquid air bag is fastened, sealed and connected end to form the annular liquid air bag 2, and two ends of the cloth tube 21 are opened.

Preferably, the tube layout 21 is further provided with a zipper to open the tube layout 21 for installation of the airbag 2.

Preferably, the liquid air sac 2 is a thin-wall annular liquid air sac with an annular cavity in the middle.

Preferably, the face frame body 1 is provided with a positioning structure for positioning the mask 18, and the mask 18 can be positioned on the middle portion of the face frame body 1 by the positioning structure of the mask 18.

Preferably, the positioning structure is a positioning post 23.

Preferably, the locating structure is at an obtuse angle to the metal plate.

Preferably, the lanyard attachment structure forms an obtuse angle with the metal plate.

Preferably, the suspension structure is at an obtuse angle to the metal plate.

Preferably, the strength of the metal plate is selected to be an upper limit value.

Preferably, the metal plate is a flat plate, and a user can bend the metal plate into a shape matched with the face for use.

Preferably, the cloth tube 20 further comprises a cloth belt 24 for connecting with the face frame body 1, and the middle part of the cloth belt 24 is connected with the cloth tube 21.

Preferably, the metal sheet passes through the magic with strap 24 and pastes and be connected, and the public face 25 setting of magic subsides just female face 26 setting is on strap 24 or the public face 25 setting of magic subsides just female face 26 setting is on strap 24 on the metal sheet.

The utility model provides a metal face frame for compressing tightly gauze mask, including the face frame body 1 that can enclose mouthful nose position, the middle part of face frame body 1 is provided with the breathing passage who is used for the air business turn over, face frame body 1 is provided with and is used for hanging the rope mounting structure with the overhead rope of cover or elastic cord 3 is connected, face frame body 1 is annular metal sheet, the intensity of metal sheet sets up to the adult can bend the metal sheet and change the shape of metal sheet and make metal sheet and facial laminating and metal sheet can stand the elastic cord and pull in order to avoid the elastic cord to pull the metal sheet and warp, face frame body 1 and gauze mask 18, human face is placed from outside to inside in proper order.

Preferably, the face frame body 1 is provided with a cloth tube for installing the sealing element 5, the face frame body 1 is connected with the cloth tube, the cloth tube is a thin-wall cloth tube 21, the cloth tube 21 is annular or the two ends of the cloth tube 21 are open and are in a long strip shape, and the face frame body 1, the cloth tube, the mask 18 and the human face are sequentially placed from outside to inside.

Preferably, the face frame body is provided with a bending structure which is beneficial to bending in the middle. The bending structure is a bending hole 28. The bending holes 28 are located on the symmetry line of the metal plate.

Preferably, cloth section of thick bamboo 20 is still including being used for the strap 24 with face frame body coupling, strap 24's middle part is connected with stringing 21, the metal sheet passes through the magic with strap 24 and pastes and be connected, the public face 25 setting of magic subsides is on the metal sheet and female face 26 sets up on strap 24 or the public face 25 setting of magic subsides is on strap 24 and female face 26 sets up on the metal sheet, the metal sheet has the flat board of breathing passageway in the middle of the non-elastic metal preparation, the user can be bent the metal sheet and use after the shape that matches with the face.

A mask 18 having a hanging hole 27, as shown in fig. 8, the mask 18 is provided with a hanging hole 27 for hanging at a side contacting with the bridge of the nose, and the mask 18 is hung on a mask body 1 through the hanging hole 27. The mask 18 is a flat body. The mask 18 is a square planar body. The mask 18 is provided with two hanging holes 27. The two hanging holes 27 are symmetrical about a plane passing through the middle of the mask 18.

The mask is not provided with the metal strip and the hanging rope, so that the production process is simple and much, only one procedure can be cut to determine, according to statistics, 10 thousands of masks can be produced in one day by the production capacity of the existing mask, 100 thousands of masks without the metal strip and the hanging rope can be produced in one day, and the capacity is expanded by 10 times.

When in use, the mask 18 with the hanging hole 27 is hung on the mask body 1, and then the mask is worn on the head, so that the mask 18 is tightly pressed on the face by the mask.

In order to press the periphery of the mask 18 to prevent the breathing air from passing through the gap between the mask 18 and the face, the shape of the face frame of the pressed mask 18 is difficult to be suitable for the face of all people, a method is to use an annular metal plate, a user can pull the metal plate into a bent shape to match with the face when using the mask, particularly a nasal sulcus at the position of the bridge of the nose is required to accommodate the nose, if the mask cannot be completely pressed by the metal plate, the mask is supplemented by adding a liquid air bag 2, because the air in the liquid air bag 2 automatically runs to the gap, the gap between the metal plate and the face is completely filled, and the metal plate is not bent and then is a flat plate with a hole in the middle of the annular shape, and is matched with the face after being bent. Some users can bend better, the mask 18 and the face can be eliminated by using the face frame body 1 alone, and the mask 18 and the face can be eliminated by adding the liquid air bag 2 after manual operation. Through setting up annular metal sheet at face frame body 1, the intensity of selecting the metal sheet comes to compress tightly gauze mask 18 with human facial cooperation in the shape of the available hand bending metal sheet of adult, through set up liquid gasbag 2 at face frame body 1, gas and/or liquid in the liquid gasbag 2 are full of the clearance packing between face frame body 1 and gauze mask 18 when face frame body 1 uses and keep certain pressure, thereby liquid gasbag 2 compresses tightly gauze mask 18 and stops gas from the clearance business turn over between face and gauze mask 18. The gas and/or liquid within the liquid cell 2 may be air or the like. The cost of using air is the lowest. The face frame body 1 can be made of hard non-elastic metal, such as aluminum, iron, copper and the like. The face frame body 1 can be folded into a face shape suitable for most people or ordinary people before sale, and then the face frame can be used after being bought back by a user and subjected to some fine adjustment, as shown in fig. 4.

In addition, the shape of the face frame body 1 is various, and the liquid air bag 2 changes along with the designed shape of the face frame body 1 when in use, and can automatically adjust the shape to adapt to the gap between the face frame body 1 and the face, so that certain pressure is filled and maintained. The liquid air bag 2 can be purchased outside separately, and then the liquid air bag 2 is connected to the face frame body 1. It is already common knowledge that elastic band 3 has applications in masks. Before use, the liquid air bag 2 is inflated and sealed, and when the face frame body 1 is used, the gaps between the face frame body 1 and the mask 18 and between the face frame body 1 and the face are filled with gas and/or liquid in the liquid air bag 2 and certain pressure is kept, so that gas is prevented from entering and exiting from the gap between the face and the mask 18. Because the liquid air bag 2 can fully fill the uneven part of the human face, the part with low pressure of the liquid air bag 2 can be automatically compensated, and the pressure of the liquid air bag 2 on each side wall is equal. The liquid air bag 2 can fill the space between the human face and the face frame body 1, which is smaller than the maximum diameter formed by the space, and as long as the space is smaller than the specific maximum diameter, the liquid air bag 2 blocks the space to block the air from entering and exiting. The maximum diameter that the liquid air cell 2 can form is the diameter of the cylinder that the liquid air cell 2 forms when the pressure in its cavity is greater than the local atmospheric pressure. When the face frame is not used, the gas in the liquid gas bag 2 is discharged, and the face frame occupies small volume in the storage or transportation process.

When the liquid air bag 2 is provided with the inflation hole 8, the liquid air bag 2 can be inflated and sold or not inflated according to the inflation requirement of the liquid air bag 2 without the inflation hole 8 when the face frame is sold, the liquid air bag is automatically inflated for use of a user, when the face frame is used, the liquid air bag 2 is folded in half, one half is not inflated by pressing, the other half is full of gas, and the half pressed by releasing is loosened, so that the whole liquid air bag 2 is only inflated by one half.

FIG. 17 is a face frame with various hanging structures, such as L-shaped hanging posts, U-shaped hanging posts, hook-shaped hanging posts, I-shaped hanging posts, etc., or other types of hanging structures. The suspension structure comprises an L-shaped suspension column and/or a U-shaped suspension column and/or a hook-shaped suspension column and/or an I-shaped suspension column.

Because the mask 18 is disposable, it is not cost effective to make a good seal structure on the mask 18, but the seal can be realized by adding the liquid air bag 2 on the face frame, and the liquid air bag 2 is made of plastic film, so the cost is very low. The function of the liquid air sac 2 can be replaced by soft materials such as silica gel, but the cost is high, the cost is not high, and the effect of the liquid air sac 2 is the best. When the mask 18 is worn, the isolation is equivalent to the isolation from the outside, the isolation can replace the isolation at home, people still work as usual without closing villages, the influence of respiratory infectious diseases on the economy is greatly avoided, the medical expense is saved, and the national health level is improved.

In one embodiment, the liquid air bag 2 may be provided in a plurality of layers, and the effect is the same, but more preferably, the plurality of layers are formed by stacking a plurality of liquid air bags 2 from the mask body 1 to the mask 18. The maximum radius of the liquid air bag 2 is R after the liquid air bag is filled with liquid or gas, so that the liquid air bag 2 can be filled in gaps between 0 and 2R. If the airbag 2 is a multilayer airbag having N layers of airbags 2, the airbag 2 can be filled in the gaps between 0 and 2 NR. The metal face frame sealed by the liquid air bag 2 has the same pressure on all parts, and can not generate marks on the face.

In one embodiment, the liquid-filled bag 2 may be a multi-liquid-filled bag 2, which is divided into an inner ring and an outer ring, but preferably, the multi-liquid-filled bag 2 is a multi-ring bag 2 like a mosquito coil, but has only one layer between the mask body 1 and the mask 18.

In a specific embodiment, the liquid bladder 2 may be configured as a multiple liquid bladder 2 and a multiple liquid bladder 2.

In one embodiment, the strength of the metal plate is such that an adult can bend the metal plate to change the shape of the metal plate to conform the metal plate to the face and the metal plate can be subjected to elastic band pulling to prevent the elastic band from pulling the metal plate to deform. It is also within the scope here to use tools, such as pliers, to modify the metal sheet.

In one embodiment, the sealing member 5 is a ring-shaped soft gel, and can be made of silica gel or other soft materials.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims

1. A metal face frame for compressing a mask is characterized by comprising a face frame body which can surround the mouth and nose part, the face frame body is provided with a sealing piece used for pressing the mask on the face of a human body, the middle part of the face frame body is provided with a breathing passage used for air to enter and exit, the face frame body is connected with the sealing element, the face frame body is provided with a hanging rope mounting structure connected with a rope or an elastic band sleeved on the head, the face frame body is annular metal sheet, the intensity of metal sheet sets up to the shape that adult can bend the metal sheet and change the metal sheet and make metal sheet and facial laminating and metal sheet can stand the elastic cord and pull in order to avoid the elastic cord to pull the metal sheet and warp, and the user can bend the metal sheet and use after the shape that matches with face, face frame body, sealing member and gauze mask, human face are placed from outside to inside in proper order.

2. The metal face frame of claim 1, wherein the seal is a soft gel or a liquid air bag with a cavity therein; the volume of the gas and/or liquid filled in the cavity of the liquid air bag at normal temperature and normal pressure is smaller than the maximum volume of the cavity which can be filled at normal temperature and normal pressure or the gas and/or liquid is not filled but the gas and/or liquid with the volume smaller than the maximum volume of the cavity which can be filled at normal temperature and normal pressure is filled in the liquid air bag for use; the volume of the gas and/or liquid filled in the cavity of the liquid air bag at normal temperature and normal pressure is one sixth to five sixths of the maximum volume of the cavity filled at normal temperature and normal pressure or the gas and/or liquid is not filled but the gas and/or liquid filled in the cavity at normal temperature and normal pressure is one sixth to five sixths of the maximum volume of the cavity filled at normal temperature and normal pressure; the volume of the gas and/or liquid filled in the cavity of the liquid air bag at normal temperature and normal pressure is one third to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure or the liquid and/or gas are not filled, but the volume of the gas and/or liquid filled in the cavity at normal temperature and normal pressure is one third to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure; the volume of the gas and/or liquid filled in the cavity of the liquid air bag at normal temperature and normal pressure is one half to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure or the liquid and/or gas are not filled, but the volume of the gas and/or liquid filled in the cavity at normal temperature and normal pressure is one half to two thirds of the maximum volume of the cavity filled at normal temperature and normal pressure; the volume of the gas and/or liquid filled in the cavity of the liquid air bag at normal temperature and normal pressure is one third to one half of the maximum volume of the cavity filled at normal temperature and normal pressure or the gas and/or liquid is not filled but the volume of the gas and/or liquid filled in the cavity at normal temperature and normal pressure is one third to one half of the maximum volume of the cavity filled at normal temperature and normal pressure; the liquid air bag is filled with air and/or liquid in a cavity of the liquid air bag; the liquid air bag is a life buoy-shaped annular body with an annular cavity in the middle or an annular bag body formed by enclosing one or more bag bodies; the liquid air bag can be arranged into a multilayer bag body formed by overlapping a plurality of bag bodies; the face frame body is connected with the liquid air bag through a connecting belt; the connecting band comprises a band ring sleeved on the periphery of the liquid air bag and a tail band fastened on the mask body, the circumference of the band ring is larger than that of the cross section of the liquid air bag, and the tail band penetrates through a connecting band hole in the face frame body to fix the liquid air bag on the face frame body.

3. The metal face frame as claimed in claim 1, wherein the face frame body is provided with a hanging structure for hanging a mask, and the mask can be hung on the face frame body by the hanging structure; the suspension structure is a suspension column, and the suspension column can be an L-shaped suspension column and/or a U-shaped suspension column and/or a hook-shaped suspension column and/or an I-shaped suspension column; the substance filled in the cavity of the liquid air bag is a solid in a high elastic state at normal temperature; the hanging rope mounting structure is a hanging hole; the liquid air bag is an elastic bag body; the liquid air bag is provided with an inflation hole for inflating gas or liquid into the cavity of the liquid air bag; an air pipe for sealing by fastening a rope is arranged at an inflation hole in the liquid air bag, and the hole wall of the inflation hole is connected with the air pipe; the air pipe is also connected with an air-entrapping balloon for entrapping air; a one-way valve is arranged between the air pipe and the air outlet of the air-entrapping balloon; the air-entrapping balloon is provided with a one-way valve at an air inlet of the air-entrapping balloon; the air plug is provided with an air plug head part inserted into the inflation hole, an air plug neck part and an air plug bottom part, and the air plug head part is provided with a chamfer convenient to insert; the diameters of the head part of the air plug, the neck part of the air plug and the bottom part of the air plug are larger than the diameter of the inflation hole; the sealing element is an annular soft colloid.

4. The metal face frame according to claim 1, wherein at least one end of the elastic band is detachably connected to the face frame body directly or indirectly, and the elastic band is a head-mounted elastic band; one end of the elastic band is fixedly connected with the face frame body, and the other end of the elastic band is directly or indirectly detachably connected with the face frame body; the right end of the elastic band is fixedly connected with the face frame body, and the left end of the elastic band is directly or indirectly detachably connected with the face frame body; the left end of the elastic band is fixedly connected with the face frame body, and the right end of the elastic band is directly or indirectly detachably connected with the face frame body; a short belt is arranged between the face frame body and one end of the elastic belt, the elastic belt and the short belt are fixedly connected with the face frame body, and the elastic belt and the short belt are detachably connected; the short belt is arranged to be non-telescopic; the detachable connection is a hook connection, the hook connection comprises a hook and a hanging ring, the hook is arranged on the elastic belt and the hanging ring is arranged on the face frame body or the hook is arranged on the face frame body and the hanging ring is arranged on the elastic belt; the detachable connection is a hook connection, the hook connection comprises a hook and a hanging ring, the hook is arranged on the elastic belt, and the hanging ring is arranged on the short belt or the hook is arranged on the short belt and the hanging ring is arranged on the elastic belt; the detachable connection is a snap connection, the snap connection comprises a male buckle and a female buckle, the male buckle is arranged on the elastic belt and the female buckle is arranged on the face frame body or the male buckle is arranged on the face frame body and the female buckle is arranged on the elastic belt; the detachable connection is a snap connection, the snap connection comprises a male buckle and a female buckle, the male buckle is arranged on the elastic belt and the female buckle is arranged on the short belt or the male buckle is arranged on the short belt and the female buckle is arranged on the elastic belt; the face frame body is connected with one end of the elastic band through two short bands, and the other end of the face frame body is connected through two short bands; the elastic band is fixedly connected with the face frame body through the elastic band, and the other end of the elastic band is detachably connected with the face frame body through the elastic band.

5. The metal face frame according to claim 1, wherein the sealing member is connected with the face frame body through a cloth tube, the cloth tube is a thin-walled cloth tube, and the cloth tube is annular or is long-strip-shaped with openings at two ends; the width of the metal plate is more than or equal to half of the circumference of the cross section of the pipe distribution; the cloth tube is connected with the face frame body through the cloth tube sewing edge; the cloth cylinder is provided with a liquid air bag, the liquid air bag is a thin-walled strip-shaped liquid air bag with a strip-shaped cavity in the middle, the liquid air bag penetrates through the cloth pipe, is fastened and sealed end to end and is connected with the liquid air bag in an annular shape, and two ends of the cloth pipe are opened; the cloth tube is also provided with a zipper so as to open the cloth tube to install the liquid air bag; the liquid air bag is a thin-walled annular liquid air bag with an annular cavity in the middle.

6. The metal face frame according to claim 1, wherein the face frame body is provided with a positioning structure for positioning the mask, and the mask can be positioned on the middle part of the face frame body through the positioning structure; the positioning structure is a positioning column; the positioning structure and the metal plate form an obtuse angle; the hanging rope mounting structure and the metal plate form an obtuse angle; the suspension structure forms an obtuse angle with the metal plate; selecting an upper limit value for the strength of the metal plate; the metal plate is a flat plate, and a user can bend the metal plate into a shape matched with the face for use; the cloth tube also comprises a cloth belt connected with the face frame body, and the middle part of the cloth belt is connected with the cloth tube; the metal sheet passes through the magic with the strap and pastes and be connected, and the public face setting of magic subsides is just female face setting on the metal sheet on the strap or the public face setting of magic subsides is just female face setting on the strap on the metal sheet.

7. The utility model provides a metal covering frame for compressing tightly gauze mask, its characterized in that, is including enclosing the face frame body at mouthful nose position, the middle part of face frame body is provided with the breathing passage who is used for the air business turn over, face frame body is provided with and is used for hanging rope mounting structure with the overhead rope or elastic cord of cover are connected, face frame body is annular metal sheet, the intensity of metal sheet sets up to the adult can make metal sheet and facial laminating and metal sheet can stand the elastic cord and pull so that the elastic cord pulls the metal sheet and warp with the metal sheet with the shape that the metal sheet changes the metal sheet of bending, face frame body and gauze mask, human face are placed from outside to inside in proper order.

8. The metal face frame according to claim 7, wherein the face frame body is provided with a cloth tube for mounting a sealing element, the face frame body is connected with the cloth tube, the cloth tube is a thin-walled cloth tube, the cloth tube is annular or is long-strip-shaped with openings at two ends, and the face frame body, the cloth tube, the mask and the human face are sequentially placed from outside to inside; the sealing element is soft colloid or a liquid air bag with a cavity inside; the volume of the gas and/or liquid filled in the cavity of the liquid air bag at normal temperature and normal pressure is smaller than the maximum volume of the cavity which can be filled at normal temperature and normal pressure or the gas and/or liquid is not filled but the gas and/or liquid with the volume smaller than the maximum volume of the cavity which can be filled at normal temperature and normal pressure is filled in the liquid air bag for use; the volume of the gas and/or liquid filled in the cavity of the liquid air bag at normal temperature and normal pressure is one sixth to five sixths of the maximum volume of the cavity filled at normal temperature and normal pressure or the gas and/or liquid is not filled but the gas and/or liquid filled in the cavity at normal temperature and normal pressure is one sixth to five sixths of the maximum volume of the cavity filled at normal temperature and normal pressure; the face frame body is provided with a positioning column; the face frame body is provided with a suspension column; the cloth tube further comprises a cloth belt used for being connected with the face frame body, the middle of the cloth belt is connected with a cloth tube, the metal plate is connected with the cloth belt through a magic tape, a male surface of the magic tape is arranged on the metal plate, a female surface of the magic tape is arranged on the cloth belt, or the male surface of the magic tape is arranged on the cloth belt, the female surface of the magic tape is arranged on the metal plate, the metal plate is a flat plate, and a user can bend the metal plate into a shape matched with the face for use; the face frame body is provided with a bending structure which is beneficial to bending; the bending structure is a bending hole; the metal plate is a flat plate made of non-elastic metal and provided with a breathing passage in the middle; the connecting belt holes are formed in the middle of the face frame body; the face frame body can be bent into a shape suitable for the face of an ordinary person.