CN212369436U - Respiratory valve body structure of filter type mask for incoming and outgoing calls - Google Patents

Abstract

The utility model discloses a breathing valve body structure of an incoming and outgoing separate filtering type mask, wherein the inner side of the mask body is provided with a breathing valve body, the breathing valve body is provided with an air inlet, an air outlet and a breathing port corresponding to the nostril of a user, and the air outlet is communicated with an air pipe A; two baffles are sequentially arranged in the breathing valve body from the middle to two sides respectively, the baffles divide the interior of the breathing valve body into five cavities, the middle cavity is an air inlet cavity, two cavities adjacent to the air inlet cavity are transition cavities, the adjacent cavity on one side of the air inlet cavity, back to the transition cavity, is an air outlet cavity, the air inlet is arranged at the position of the air inlet cavity, the air outlet is arranged at the position of the air outlet cavity, and the breathing opening is arranged at the top of the transition cavity. According to the above structure, the utility model discloses a respiratory valve body structure of filter formula gauze mask is divided in incoming call exhalation, respiratory valve body pass in and out respiratory valve body with the inspiratory air of nostril and the gaseous follow different routes of exhalation to make inspiratory gas and the gaseous separation of exhalation filter respectively to the region that the difference does not communicate each other.

Description

Respiratory valve body structure of filter type mask for incoming and outgoing calls

Technical Field

The utility model relates to a technical field of filtration formula gauze mask, concretely relates to respiratory valve body structure of incoming call exhalation branch filter formula gauze mask.

Background

The mask is a sanitary article, generally refers to a device worn at the mouth and nose part for filtering air entering the mouth and nose so as to prevent harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer, and is made of gauze, non-woven fabric, melt-blown fabric or paper and the like.

The mask has a certain filtering function on air entering the lung, and has a very good effect when being worn in respiratory infectious diseases and working in environments polluted by dust and the like.

Most gauze masks all are the air filtration formula gauze mask on the market at present, realize filtering the air that inhales in the human body through the cloth structure of gauze mask, also filter the back to external world to the gas of human body exhalation simultaneously.

The spreading of the new coronavirus epidemic situation has great influence on the social and economic lives of the whole world. In order to effectively block the transmission of viruses, the mask becomes a necessity of people during the transmission of epidemic situations except for measures such as washing hands, disinfection and the like.

Most of the masks in the market at present realize the incoming and outgoing through the air permeability of the fabric of the masks. The exhaled air close to the body temperature stays in the air cavity of the mask in a circulating mode, and exhaled moisture and microorganisms are easy to stay between the inner layer of the mask and the face in the mask, so that strong discomfort is brought to the face of people along with the change of the temperature of weather. When medical protective facial mask wore, in order to guarantee the gas tightness, the gauze mask edge was too compact with the facial laminating of people to it is heavier at people's facial indentation. Due to the sealing effect of the mask, a user wearing the mask generally feels stuffy and humid, is easy to have eczema on the face after wearing the mask for a long time, is not smooth to breathe and is uncomfortable to wear, so the user cannot take off the mask.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the breathing valve body structure of the incoming and outgoing filter type mask overcomes the defects of the prior art, and the filter type mask formed by combining the mask body and the breathing valve body can be easily and conveniently exhaled out of the mask by a user wearing the mask, so that the breathing comfort of the mask is improved, and the exhaled gas is prevented from being residual and gathered in a cavity between the mask and the face contact surface of the user, and the user feels uncomfortable and even causes eczema; the breathing valve body can enable air inhaled from nostrils and exhaled air to enter and exit the breathing valve body from different paths, so that the exhaled air is prevented from circulating and staying in the mask; the breathing valve body and the mask body are connected through the hose, and the breathing valve body and the mask body are respectively and independently connected and fixed with users, so that the mask body and the breathing valve body can be used by users with different face shapes, and the applicability is improved; the structure of the mask body can obviously improve the filtering effect of the mask body; through the connecting position of the hose of the breathing valve body and the mask body, the filtering effect of nose breathing and the smoothness of the nose breathing can be considered; and the number of layers of the filter layers of the mask body through which the direct mouth part breathes is larger than that of the filter layers of the mask body through which the nose breathes through the breathing valve body, so that a user can be guided to be used to breathe through the breathing valve body by using the nose, and the utilization rate of the breathing valve body is improved.

The technical scheme adopted by the utility model is as follows:

a respiratory valve structure of a filter type breathing mask for incoming and outgoing calls comprises a mask body, wherein two sides of the mask body are respectively provided with a hanging lug device A, the inner side of the mask body is provided with a breathing valve body which is provided with an air inlet, an air outlet and a breathing opening corresponding to the nostril of a user, the mask body sequentially comprises a plurality of layers of composite filter layers and a moisture absorption layer from outside to inside, the edge of the mask body is sealed and fixed, so that the edge positions among all the layers of the mask body are respectively sealed and fixed, the middle part of the mask body is provided with a transverse welding mark A which enables the positions of the welding marks A between the layers of the mask body to be respectively fixed in a sealing way, the gas outlet is respectively communicated with the mask body through a gas pipe A, the joint of the gas pipe A and the mask body is positioned on the same side of the welding mark A, and the connecting end of the gas pipe A and the mask body is positioned on the outer side of the moisture absorption layer. The user wearing the mask can easily and conveniently exhale the gas out of the mask, so that the exhaled gas which is close to the body temperature of the person and contains carbon dioxide, moisture, microorganisms and the like does not directly stay in the air cavity attached to the face of the person in the mask in a short-time circulating mode. The stuffy feeling and the moist feeling of the face of a person in the air cavity of the mask are greatly reduced, the mask can be kept to have good air permeability for a long time when being worn for inhaling, the probability of causing eczema is also reduced to the minimum, and the breathing comfort of the mask is enhanced.

The utility model discloses the further improvement is, be equipped with two baffles respectively to the direction of both sides by the middle part in the breather valve body in proper order, the baffle separates into five chambeies in with the breather valve body, and middle chamber is the chamber of admitting air, and two chambeies adjacent with the chamber of admitting air are the transition chamber, the adjacent chamber of transition chamber one side of admitting air dorsad is the chamber of giving vent to anger, the chamber of admitting air one-way intercommunication in the transition chamber, the one-way intercommunication in the chamber of giving vent to anger in the transition chamber, the breather valve body is located to the air inlet and is corresponding to chamber position department of admitting air, the breather valve body is located to the gas outlet and is corresponding to chamber position department of giving vent to anger, the top position department. The structure of the valve body realizes that the breathing valve body shunts the breathing gas to different air vents, and the mixing and mutual influence of the incoming and outgoing gases are avoided to the maximum extent.

The utility model has the further improvement scheme that through holes A communicated with the two sides of the clapboard are respectively arranged on the clapboard, and valve plates are respectively arranged at one side of the clapboard back to the air inlet cavity and at the positions corresponding to the through holes A; when the airflow is blown to the valve plate from the opposite side of the partition plate provided with the valve plate, a gap is reserved between the valve plate and the corresponding through hole A, and the airflow passes through the through hole A; when the air flow is blown to the valve block from the side of the partition plate provided with the valve block, the valve block and the corresponding through hole A are closed through the specific structure of the valve block and the partition plate, and the effect of shunting the respiratory gas in the breathing valve body is achieved.

The utility model discloses further improve the scheme and be, the baffle is equipped with the connecting piece that is used for fixed valve block towards one side of valve block, the upper portion position department that is located through-hole A and goes up the edge, the connecting piece is connected with the upside of valve block. The top of valve block is connected with the baffle, under the positive pressure or the negative pressure effect that valve block gravity effect and air current formed to can be convenient for in time opening and closing of valve block and through-hole A.

The utility model discloses a further improvement scheme is, the material of valve block is flexible emulsion piece. The valve plate of the latex sheet can further facilitate the timely opening and closing of the valve plate and the through hole A, and the sealing effect during closing can be ensured.

The utility model discloses further improve the scheme and be, the top of breathing valve body, be equipped with the body of inserting that matches with user's nostril corresponding to the mouth position department of breathing. Through the effect of plugging in the body for the mouth of breathing valve body can be fixed a position with the nostril, avoids the nostril not just directly communicate with the internal space of gauze mask through breathing valve body.

The utility model discloses further improve the scheme and be, breather valve body's both ends are equipped with hangers device B respectively, hangers device B is fixed in the link that breather valve body both sides were established. Through the effect of hangers device B for the breather valve body can be effectively fixed with user's nose.

The utility model discloses further improve the scheme and be, the top of breathing valve body, be located the front side of breathing the mouth and be equipped with the location boss that matches with user's nose. Through the effect of location boss to make the whole nose location with the user of breather valve body, and can also avoid breather valve body to lead to breather valve body in use to remove under hangers device B's effort.

The utility model discloses further improve the scheme and be, the breather valve body is including dismantling fixed valve body main part and housing, the border of housing is sealed fixed between through sealed card strip and the valve body main part. The valve plate in the breathing valve body can be conveniently replaced under the action of the housing, and the breathing valve body can be conveniently cleaned.

The utility model discloses a further improvement scheme is, all there is one deck compound filter layer at least between the link of trachea A and the outside of the gauze mask body and between link and the moisture absorption layer. The breathing mask ensures that the gas exhaled by the connecting end of the trachea A and the mask body is exhausted to the atmosphere after being filtered in the breathing process, and can prevent an infectious disease patient from infecting other people when the user of the mask body is the infectious disease patient.

The utility model discloses a further improvement scheme is, compound filter layer includes in proper order along the gauze mask body from outer to interior direction and prevents the droplet layer and filter the basic unit. Through the composite filtration of the anti-spray layer and the filter base layer, the filtering effect is ensured.

The utility model discloses a further improvement scheme is, prevent that the material on droplet layer and hygroscopic layer is for gluing the non-woven fabrics, the material of filtering the basic unit is the melt-blown cloth.

The utility model discloses further improve the scheme and be, the inboard of the gauze mask body, be located the fixed connection interface that is equipped with of trachea A's junction, it is sealed between connection interface and the trachea A. The mask body and the breathing valve body are independently produced and the connection between the air pipe A of the breathing valve body and the mask body is facilitated.

The utility model discloses a further improvement scheme is, the air inlet is equipped with a plurality ofly, the air inlet is one row along air inlet chamber evenly distributed. Thereby improving the air intake efficiency and further facilitating the smooth air intake of the user wearing the mask.

The utility model discloses further improve the scheme be, perhaps, the air inlet passes through trachea B and gauze mask body coupling, trachea B is located the outside on moisture absorption layer with the link of the gauze mask body to between the outside of the link and the gauze mask body and all have one deck composite filter layer between link and the moisture absorption layer at least, the both sides of welding trace A are located to the junction of trachea B and the gauze mask body and the junction of trachea A and the gauze mask body. The air inlet of the breather valve body is connected with the mask body through the air pipe B, so that the breathing smooth effect of the user wearing the mask is improved, the air inlet and outlet of the breather valve body can be guaranteed to exhale and breathe in through two disconnected regions of the mask body completely, and the phenomenon that the exhaled air affects the inhaled air at the temperature angle or at the component angle of the exhaled air is avoided.

The utility model discloses a further improvement scheme is, the air inlet is connected with two trachea B through the tee bend connecting pipe. The air inlet passes through two trachea B of tee bend connecting tube and is connected with the gauze mask body, has not only further improved the efficiency of admitting air, can disperse the regional division of admitting air that trachea B and gauze mask body junction formed moreover to not only can reduce to breathe in hard, improve the filter effect, even wherein after one side takes place to block up, one side can continue to use moreover.

The utility model discloses further improve the scheme and be, the inboard of the gauze mask body, be located the fixed connection interface that is equipped with of trachea B's junction, it is sealed between connection interface and the trachea B. The mask body and the breathing valve body are independently produced and the air pipe B of the breathing valve body is connected with the mask body conveniently through the connecting interface.

The utility model discloses a further improvement scheme is, the gauze mask is internal, the position department that corresponds to be located trachea B and gauze mask body junction still fixes being equipped with the support rib. Through the effect of supporting the rib for trachea B can expand throughout with the gauze mask physical stamina of gauze mask body coupling position department, thereby has improved the gauze mask body intensity of this position department, guarantees that the gauze mask body of this position department expands throughout, and then can increase as far as possible and filter area of contact, improve filter effect and air intake efficiency.

The utility model discloses a further improvement scheme is, the support rib is horizontal rib. Through the effect of horizontal muscle when guaranteeing efficiency and the filter effect of admitting air, the production of the gauze mask body of being convenient for also accords with the conventional use of the gauze mask body more.

The utility model discloses further improve the scheme and be, trachea A and trachea B are flexible flat pipe. The flexible flat pipe makes the trachea more comfortable when contacting with the face of the user.

The utility model discloses further improve the scheme be, the outside of the gauze mask body, be located the fixed nose clip pole that is equipped with of top border play. Through the effect of nose clip pole for gauze mask and different users 'face laminate more, avoid having the gap and influence the result of use of gauze mask between the gauze mask body and the user's face.

The utility model discloses further improve the scheme and be, the inboard of the gauze mask body, the fixed nose pad that is equipped with in position department corresponding to nose clamping bar. Through the effect of nose bridge pad, avoid the user to wear the gauze mask for a long time and lead to nose bridge position department to produce wearing and tearing.

The utility model discloses further improve the scheme and be, the border of the gauze mask body, the top position department and the bottom position department that are located the gauze mask body correspond respectively and are equipped with welding trace B and welding trace C. Through the effect of welding trace B and welding trace C, further guarantee the sealed effect of gauze mask top and user's nose position department and gauze mask bottom and user's chin position department.

The utility model discloses a further improvement scheme is, welding trace A divides the gauze mask body into upper portion regional A and the regional B of lower part. Through the effect of welding mark A, make the gauze mask body separate into two areas that do not communicate each other, realize breather valve body's the separation of admitting air and giving vent to anger in the gauze mask use of being convenient for.

The beneficial effects of the utility model reside in that:

firstly, the breathing valve body structure of the incoming and outgoing filter type mask of the utility model is a filter type mask formed by combining the mask body and the breathing valve body, so that a user wearing the mask can easily and conveniently send air out of the mask, and on one hand, the air suction process during breathing plays a role of cooling the face of a person in the air cavity of the mask; on the other hand, the exhaled gas which is close to the body temperature of the human body and contains carbon dioxide, moisture, microorganisms and the like does not directly circulate and stay in the air cavity attached to the face of the human body in the mask for a short time. The stuffy feeling and the moist feeling of the face of a person in the air cavity of the mask are greatly reduced, the mask can be kept to have good air permeability for a long time when being worn for inhaling, the probability of causing eczema is also reduced to the minimum, and the breathing comfort of the mask is enhanced.

Second, the utility model discloses a respiratory valve body structure of incoming call exhalation branch filter formula gauze mask, respiratory valve body can be with the gaseous business turn over respiratory valve body of route from the difference of nostril inspiratory air and exhalation to make inspiratory gas and the gas separation of exhalation filter respectively to the region that the difference does not communicate each other, furthest avoids the gas of inhaling and the gas of exhalation to mix, influence each other in gauze mask gas cavity.

Third, the utility model discloses a respiratory valve body structure of incoming call exhalation branch filter formula gauze mask, respiratory valve body and the gauze mask body are through the hose connection to respiratory valve body and the gauze mask body are fixed with the user be the independent connection respectively, so can make the user of different types of face can both use the gauze mask body and respiratory valve body, have improved the suitability.

Fourth, the utility model discloses a respiratory valve body structure of incoming call exhalation branch filter formula gauze mask, the structure of gauze mask body itself can show the filter effect who improves the gauze mask body.

Fifth, the breathing valve body structure of the incoming and outgoing split-filtration type mask of the utility model can not only take the filtering effect of nose breathing and the smoothness of nose breathing into consideration through the connecting position of the hose of the breathing valve body and the mask body; and the number of piles of each filter layer of the mask body that the mouth part directly breathes is greater than the number of piles of each filter layer of the mask body that the nose breathes through the breather valve body, and the structure can guide the user to be used to the nose to breathe through the breather valve body and filter, thereby improving the utilization rate of the breather valve body.

Description of the drawings:

FIG. 1 is an outside perspective view of a mask body.

Fig. 2 is an inside perspective view of the mask body of example 1.

Fig. 3 is an exploded perspective view of the breather valve body.

Fig. 4 is a side perspective view of the mask body of example 1.

Fig. 5 is an enlarged schematic side sectional view of the mask body of embodiment 1 at the position of the connection interface of the trachea B and the welding mark a.

Fig. 6 is a side perspective view of the mask body of example 2.

Fig. 7 is an enlarged bottom view of the breather valve body according to embodiment 2.

The specific implementation mode is as follows:

example 1

As shown in fig. 1 to 5, the breathing valve structure of the filter mask for incoming and outgoing calls of the present invention comprises a mask body 1 with two sides respectively provided with a hanging ear device a2, the inner side of the mask body 1 is provided with a breathing valve body 8, the breathing valve body 8 is provided with an air inlet 28, an air outlet 14 and a breathing opening 13 corresponding to the nostril of the user, the mask body 1 sequentially comprises a multi-layer composite filter layer 31 and a moisture absorption layer 32 from the outside to the inside, the edge of the mask body 1 is sealed and fixed, the edge positions between the layers of the mask body 1 are respectively sealed and fixed, the middle part of the mask body 1 is provided with a transverse welding mark a22, the transverse welding mark a22 makes the welding mark a22 position between the layers of the mask body 1 respectively sealed and fixed, the air outlet 14 is respectively communicated with the mask body 1 through an air pipe a7, the connection position of the air pipe a7 and the mask body 1 is located on the same side of the welding mark a22, the connecting end of the air tube A7 and the mask body 1 is positioned outside the moisture absorption layer 32.

Two baffles 12 are respectively and sequentially arranged in the breathing valve body 8 from the middle to the directions of two sides, the baffles 12 divide the breathing valve body 8 into five cavities, the middle cavity is an air inlet cavity 15, two cavities adjacent to the air inlet cavity 15 are transition cavities 16, the adjacent cavity of the transition cavity 16 back to the air inlet cavity 15 side is an air outlet cavity 17, the air inlet cavity 15 is communicated with the transition cavity 16 in a one-way mode, the transition cavity 16 is communicated with the air outlet cavity in a one-way mode, the air inlet 28 is arranged on the breathing valve body 8 and corresponds to the position of the air inlet cavity 15, the air outlet 14 is arranged on the breathing valve body 8 and corresponds to the position of the air outlet cavity 17, and the breathing port 13 is arranged on the top position of the breathing valve body 8 and corresponds to the transition cavity 16.

The partition plate 12 is respectively provided with through holes A18 communicated with two sides of the partition plate, and the side of the partition plate 12 back to the air inlet cavity 15 and the positions corresponding to the through holes A18 are respectively provided with a valve plate 9; when the airflow is blown to the valve plate 9 from the opposite side of the partition plate 12 provided with the valve plate 9, a gap is formed between the valve plate 9 and the corresponding through hole A18, and the airflow passes through the through hole A18; when the air flow is blown to the valve sheet 9 from the side of the partition plate 12 where the valve sheet 9 is provided, the valve sheet 9 and the corresponding through hole a18 are closed.

The partition plate 12 faces one side of the valve plate 9 and is provided with a connecting piece 19 used for fixing the valve plate 9 at the upper position of the upper edge of the through hole A18, and the connecting piece 19 is connected with the upper side of the valve plate 9.

The valve plate 9 is made of a flexible latex sheet.

The top of the respiration valve body 8, corresponding to the position of the respiration opening 13, is provided with a plugging body 20 matched with the nostril of the user.

Two ends of the breathing valve body 8 are respectively provided with a suspension loop device B5, and the suspension loop device B5 is fixed at the connecting ends 11 arranged at two sides of the breathing valve body 8.

The top of the breathing valve body 8 and the front side of the breathing port 13 are provided with a positioning boss 25 matched with the nose of a user.

The breather valve body 8 comprises a valve body main body and a housing 10 which are detachably fixed, and the edge of the housing 10 is fixed with the valve body main body in a sealing way through a sealing clamping strip 21.

At least one composite filter layer 31 is arranged between the connecting end of the air pipe A7 and the outer side of the mask body 1 and between the connecting end and the moisture absorption layer 32.

The composite filter layer 31 sequentially comprises an anti-spray layer 34 and a filter base layer 33 along the direction from outside to inside of the mask body 1.

The anti-flying-foam layer 34 and the moisture absorption layer 32 are made of spunbonded non-woven fabrics, and the filter base layer 33 is made of melt-blown fabrics.

The connecting port 6 is fixedly arranged at the connecting part of the air pipe A7 on the inner side of the mask body 1, and the connecting port 6 and the air pipe A7 are sealed.

The air inlet 28 is connected with the mask body 1 through an air pipe B29, the connecting end of the air pipe B29 and the mask body 1 is positioned at the outer side of the moisture absorption layer 32, at least one composite filter layer 31 is arranged between the connecting end and the outer side of the mask body 1 and between the connecting end and the moisture absorption layer 32, and the connecting part of the air pipe B29 and the mask body 1 and the connecting part of the air pipe A7 and the mask body 1 are arranged at two sides of the welding mark A22.

The air inlet 28 is connected with two air pipes B29 through a three-way connecting pipe 30.

The connecting port 6 is fixedly arranged at the connecting part of the inner side of the mask body 1 and the air pipe B29, and the connecting port 6 and the air pipe B29 are sealed.

A supporting rib 35 is also fixedly arranged in the mask body 1 at a position corresponding to the joint of the air pipe B29 and the mask body 1; the support ribs are transverse ribs 35.

The air pipe A7 and the air pipe B29 are both flexible flat pipes.

And a nose clip rod 3 is fixedly arranged on the outer side of the mask body 1 and positioned at the top edge.

A nose bridge pad 4 is fixedly arranged at the inner side of the mask body 1 and corresponding to the position of the nose clamping rod 3.

The edge of the mask body 1, the top position and the bottom position of the mask body 1 are respectively and correspondingly provided with a welding mark B23 and a welding mark C24.

The weld mark a22 divides the mask body 1 into an upper region a26 and a lower region B27.

When the mask is used, the breathing valve body 8 is firstly placed below the nose of a user, the plugging body 20 is correspondingly plugged into the nostril, and then the ear hanging device B5 is hung on the ear of the user, so that the breathing valve body 8 is fixed with the nose of the user; then, the position of the breather valve body 8 is adjusted, so that the positioning boss 25 of the breather valve body 8 is positioned after matching and contacting with the nose of a user; then the ear hanging device A2 of the mask body 1 is hung on the ears of the user, so that the mask body 1 is fixed with the face of the user after covering the mouth and nose of the user.

After wearing the mask of this embodiment, the user breathes through the nose. When a nose inhales, outside air enters an air pipe B29 after being filtered by at least one composite filter layer 31 in the area A26 of the mask body 1, negative pressure is generated in a transition cavity 16 communicated with nostrils of the nose due to the nose inhaling, and the negative pressure in the transition cavity 16 opens a valve plate 9 between the transition cavity 16 and an air inlet cavity 15 and closes the valve plate 9 between the transition cavity 16 and an air outlet cavity 17, so that the air enters the air inlet cavity 15 of the breathing valve body 8 through the air pipe B29 and then enters the transition cavity 16, and finally enters the nostrils corresponding to the nose through a breathing port 13 of the transition cavity 16; when the nose exhales, air in the nostril enters the transition cavity 16 through the breathing port 13, positive pressure is generated in the transition cavity 16 communicated with the nostril of the nose due to the nose exhaling, at the moment, the valve sheet 9 between the transition cavity 16 and the air inlet cavity 15 is closed by the positive pressure in the transition cavity 16, and the valve sheet between the transition cavity 16 and the air outlet cavity 17 is opened, so that the air exhaled in the nostril enters the transition cavity 16 of the breathing valve body 8 and then enters the air outlet cavity 17, is communicated with the area B27 of the mask body 1 through the air pipe A7 communicated with the air outlet cavity 17, and is filtered by the composite filter layer 31 of at least one layer of the area B27 of the mask body 1 and then is exhausted outwards.

After wearing the mask of the embodiment, when the mouth is speaking and communicating, the user can inevitably inhale or exhale gas directly through the mouth. When inhaling through the mouth, the outside air passes through the composite filter layers 31 and the moisture absorption layer 32 of the mask body 1 in sequence along the air flowing direction, then enters the cavity between the mask body 1 and the face of the user, and enters the oral cavity of the user; when the gas is exhaled through the mouth, the gas exhaled through the mouth passes through the moisture absorption layer 32 and each composite filter layer 31 of the mask body 1 in sequence along the gas flow direction, and then the air in the mouth enters the cavity between the mask body 1 and the face of the user, and then enters the outside atmosphere after being filtered by the mask body 1.

When the utility model is used, the gas exhaled by the incoming call is separated from the gas inlet through the breather valve body 8, the gas pipe A7 and the gas pipe B29. When air is fed, the mask body 1 is connected through the air pipe B29 to enter the range of the area A26, the bottom edge of the area A26 of the mask body 1 is sealed by the welding mark A22, the edge of the area A22 is also sealed and fixed, and the connecting interface 6 is positioned between the anti-foam layer 34 and the filter base layer 33 of the mask body or between the filter base layer 33 and the moisture absorption layer 32, so that an air inlet bag is formed at the connecting interface 6 in the area A26, and air is further ensured to be sucked after being filtered. When the respirator is used for air outlet, the exhaled air close to the body temperature of a person is connected with the respirator body 1 through the air pipe A7 to enter the range of the area B27, the area B27 of the respirator body 1 is sealed by the welding mark A22 at the top edge and is also sealed and fixed at the edge, and the connecting interface 6 is positioned between the anti-foam layer 34 and the filter base layer 33 of the respirator body or between the filter base layer 33 and the moisture absorption layer 32, so that an air outlet bag is formed at the connecting interface 6 in the area B27, and then the air is ensured to be inhaled after being filtered and is ensured to be exhausted after being filtered. When a user inhales, because the airflow is relatively concentrated, the negative pressure generated by the air inlet cavity is large, so that part of outside air enters the area between the mask body 1 and the face of the user after being filtered by all parts of the mask body 1, and the formed airflow can be blown to the face of the user, thereby playing a certain role in cooling the user; when the user exhales, the temperature of the exhaled gas is close to the body temperature, and the exhaled gas is discharged in different ways, so that the exhaled gas does not stay in the air cavity inner circulation between the mask body 1 and the face of the user any more, and the comfort of wearing the mask is enhanced.

The upper part of the welding mark A22 is provided with a plurality of layers of composite filter layers for air suction, an air inlet bag is formed between each layer, and the air inlet bag is connected with the air inlet bag through an air suction pipe to suck air after being filtered by the outer layers of the composite filter layers of the air inlet bag; the lower part of the welding mark A22 is a multi-layer composite filter layer for exhausting air, an exhaust bag is formed between every two layers, the exhaled air is exhausted into the exhaust bag through an exhaust pipe, and the exhaled air is naturally diffused into the air after being filtered. On one hand, the inhalation process of air during breathing plays a role in cooling the face of a person in the air cavity of the mask; on the other hand, the gas which is exhaled by the person and has the temperature similar to the body temperature of the person and contains carbon dioxide, moisture, microorganisms and the like does not directly circulate and stay in the air cavity which is attached to the face of the person in the mask for a short time. The stuffy feeling and the moist feeling of the face of a person in the air cavity of the mask are greatly reduced, the good air permeability of the mask during air suction can be kept for a long time, the probability of eczema is also reduced to the minimum, and the breathing comfort of the mask is enhanced.

The technical scheme of this embodiment can protect oneself, protects other people again, is applicable to medical protection.

Example 2

As shown in fig. 1, fig. 3, fig. 6 and fig. 7, the breathing valve structure of the filter mask for incoming and outgoing calls of the present invention comprises a mask body 1 with two sides respectively provided with a hanging ear device a2, the inner side of the mask body 1 is provided with a breathing valve body 8, the breathing valve body 8 is provided with an air inlet 28, an air outlet 14 and a breathing opening 13 corresponding to the nostril of the user, the mask body 1 sequentially comprises a plurality of layers of composite filter layers 31 and a moisture absorption layer 32 from the outside to the inside, the edge of the mask body 1 is fixed in a sealing manner, the edge positions between the layers of the mask body 1 are respectively fixed in a sealing manner, the middle part of the mask body 1 is provided with a transverse welding mark a22, the transverse welding mark a22 is used for respectively fixing the position of a welding mark a22 between the layers of the mask body 1 in a sealing manner, the air outlet 14 is respectively communicated with the mask body 1 through an air pipe a7, the joint of the air pipe a7 and the mask body, the connecting end of the air tube A7 and the mask body 1 is positioned outside the moisture absorption layer 32.

Two baffles 12 are respectively and sequentially arranged in the breathing valve body 8 from the middle to the directions of two sides, the baffles 12 divide the breathing valve body 8 into five cavities, the middle cavity is an air inlet cavity 15, two cavities adjacent to the air inlet cavity 15 are transition cavities 16, the adjacent cavity of the transition cavity 16 back to the air inlet cavity 15 side is an air outlet cavity 17, the air inlet cavity 15 is communicated with the transition cavity 16 in a one-way mode, the transition cavity 16 is communicated with the air outlet cavity in a one-way mode, the air inlet 28 is arranged on the breathing valve body 8 and corresponds to the position of the air inlet cavity 15, the air outlet 14 is arranged on the breathing valve body 8 and corresponds to the position of the air outlet cavity 17, and the breathing port 13 is arranged on the top position of the breathing valve body 8 and corresponds to the transition cavity 16.

The partition plate 12 is respectively provided with through holes A18 communicated with two sides of the partition plate, and the side of the partition plate 12 back to the air inlet cavity 15 and the positions corresponding to the through holes A18 are respectively provided with a valve plate 9; when the airflow is blown to the valve plate 9 from the opposite side of the partition plate 12 provided with the valve plate 9, a gap is formed between the valve plate 9 and the corresponding through hole A18, and the airflow passes through the through hole A18; when the air flow is blown to the valve sheet 9 from the side of the partition plate 12 where the valve sheet 9 is provided, the valve sheet 9 and the corresponding through hole a18 are closed.

The partition plate 12 faces one side of the valve plate 9 and is provided with a connecting piece 19 used for fixing the valve plate 9 at the upper position of the upper edge of the through hole A18, and the connecting piece 19 is connected with the upper side of the valve plate 9.

The valve plate 9 is made of a flexible latex sheet.

The top of the respiration valve body 8, corresponding to the position of the respiration opening 13, is provided with a plugging body 20 matched with the nostril of the user.

Two ends of the breathing valve body 8 are respectively provided with a suspension loop device B5, and the suspension loop device B5 is fixed at the connecting ends 11 arranged at two sides of the breathing valve body 8.

The top of the breathing valve body 8 and the front side of the breathing port 13 are provided with a positioning boss 25 matched with the nose of a user.

The breather valve body 8 comprises a valve body main body and a housing 10 which are detachably fixed, and the edge of the housing 10 is fixed with the valve body main body in a sealing way through a sealing clamping strip 21.

At least one composite filter layer 31 is arranged between the connecting end of the air pipe A7 and the outer side of the mask body 1 and between the connecting end and the moisture absorption layer 32.

The composite filter layer 31 sequentially comprises an anti-spray layer 34 and a filter base layer 33 along the direction from outside to inside of the mask body 1.

The anti-flying-foam layer 34 and the moisture absorption layer 32 are made of spunbonded non-woven fabrics, and the filter base layer 33 is made of melt-blown fabrics.

The connecting port 6 is fixedly arranged at the connecting part of the air pipe A7 on the inner side of the mask body 1, and the connecting port 6 and the air pipe A7 are sealed.

The air inlets 28 are provided in plurality, and the air inlets 28 are uniformly distributed in a row along the air inlet cavity 15.

The air pipe A7 is a flexible flat pipe.

And a nose clip rod 3 is fixedly arranged on the outer side of the mask body 1 and positioned at the top edge.

A nose bridge pad 4 is fixedly arranged at the inner side of the mask body 1 and corresponding to the position of the nose clamping rod 3.

The edge of the mask body 1, the top position and the bottom position of the mask body 1 are respectively and correspondingly provided with a welding mark B23 and a welding mark C24.

The weld mark a22 divides the mask body 1 into an upper region a26 and a lower region B27.

When the mask is used, the breathing valve body 8 is firstly placed below the nose of a user, the plugging body 20 is correspondingly plugged into the nostril, and then the ear hanging device B5 is hung on the ear of the user, so that the breathing valve body 8 is fixed with the nose of the user; then, the position of the breather valve body 8 is adjusted, so that the positioning boss 25 of the breather valve body 8 is positioned after matching and contacting with the nose of a user; then the ear hanging device A2 of the mask body 1 is hung on the ears of the user, so that the mask body 1 is fixed with the face of the user after covering the mouth and nose of the user.

After wearing the mask of this embodiment, the user breathes through the nose. When a nose inhales, external air is filtered by the composite filter layers 31 and the moisture absorption layer 32 of the mask body 1 and then enters a cavity between the mask body 1 and the face of a user, and enters the air inlet cavity 16 through the air inlet 28, negative pressure is generated in the transition cavity 16 communicated with nostrils of the nose due to the nose inhaling, at the moment, the valve sheet 9 between the transition cavity 16 and the air inlet cavity 15 is opened by the negative pressure in the transition cavity 16, the valve sheet 9 between the transition cavity 16 and the air outlet cavity 17 is closed, and then the air enters the air inlet cavity 15 of the breathing valve body 8 through the air pipe B29 and then enters the transition cavity 16, and finally enters the nostrils corresponding to the nose through the breathing port 13 of the transition cavity 16; when the nose exhales, the air in the nostril enters the transition cavity 16 through the breathing port 13, and the nose exhales, so that positive pressure is generated in the transition cavity 16 communicated with the nostril of the nose, and at the moment, the valve sheet 9 between the transition cavity 16 and the air inlet cavity 15 is closed by the positive pressure in the transition cavity 16, and the valve sheet between the transition cavity 16 and the air outlet cavity 17 is opened, so that the air exhaled in the nostril enters the transition cavity 16 of the breathing valve body 8 and then enters the air outlet cavity 17, is communicated with the region B27 of the mask body 1 through the air pipe A7 communicated with the air outlet cavity 17, and is filtered by the region B27 of the mask body 1 and then is exhausted outwards.

After wearing the mask of the embodiment, when the mouth is speaking and communicating, the user can inevitably inhale or exhale gas directly through the mouth. When inhaling through the mouth, the outside air passes through the composite filter layers 31 and the moisture absorption layer 32 of the mask body 1 in sequence along the air flowing direction, then enters the cavity between the mask body 1 and the face of the user, and enters the oral cavity of the user; when the gas is exhaled through the mouth, the gas exhaled through the mouth passes through the moisture absorption layer 32 and each composite filter layer 31 of the mask body 1 in sequence along the gas flow direction, and then the gas in the mouth enters the cavity between the mask body 1 and the face of the user and then enters the outside atmosphere through the mask body 1.

When the utility model is used, the gas exhaled by the incoming call is separated from the gas inlet through the breather valve body 8, the gas pipe A7 and the gas pipe B29. When air is fed, the air is directly filtered and sucked through the mask body 1. When the respirator is used for air outlet, the exhaled air close to the body temperature of a person is connected with the respirator body 1 through the air pipe A7 to enter the range of the area B27, the area B27 of the respirator body 1 is sealed by the welding mark A22 at the top edge and is also sealed and fixed at the edge, and the connecting interface 6 is positioned between the anti-foam layer 34 and the filter base layer 33 of the respirator body or between the filter base layer 33 and the moisture absorption layer 32, so that an air outlet bag is formed at the connecting interface 6 in the area B27, and the filtered air is further ensured to be inhaled and then exhausted. When a user inhales, because the airflow is relatively concentrated, the negative pressure generated by the air inlet cavity is large, so that part of outside air enters the area between the mask body 1 and the face of the user after being filtered by all parts of the mask body 1, and the formed airflow can be blown to the face of the user, thereby playing a certain role in cooling the user; when the user breathes out gas, the temperature of the breathed out gas is close to the body temperature, and the breathed out gas is discharged in different ways in addition, so that the breathed out gas no longer stays in the air cavity inner loop between the mask body 1 and the face of the user, thereby achieving the purpose of enhancing the comfort of wearing the mask.

The upper part of weld mark A22 is used for filtering the sucked air; the lower part of the welding mark A22 is a multi-layer composite filter layer for exhausting air, an exhaust bag is formed between every two layers, the exhaled air is exhausted into the exhaust bag through an exhaust pipe, and the exhaled air is naturally diffused into the air after being filtered. On one hand, the inhalation process of air during breathing plays a role in cooling the face of a person in the air cavity of the mask; on the other hand, the gas which is exhaled by the person and has the temperature similar to the body temperature of the person and contains carbon dioxide, moisture, microorganisms and the like does not directly circulate and stay in the air cavity which is attached to the face of the person in the mask for a short time. The stuffy feeling and the moist feeling of the face of a person in the air cavity of the mask are greatly reduced, the good air permeability of the mask during air suction can be kept for a long time, the probability of eczema is also reduced to the minimum, and the breathing comfort of the mask is enhanced.

The technical scheme of this embodiment can effectively prevent that the gas of expired and having the virus from infecting other people, is applicable to medical surgery.

The breathing valve body 8 in the present application is not limited to be applied to a mask, and breathing mask devices that require the shunt ventilation of exhaled air and inhaled air can be applied.

The foregoing illustrates and describes the principles, general features, general advantages, and methods of the present invention. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are given by way of illustration of the principles of the application, and that various changes and modifications may be made without departing from the scope of the application, which is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a respiratory valve body structure of filter formula gauze mask is divided in incoming call exhalation which characterized in that: the nasal cavity breathing valve comprises a breathing valve body (8), wherein the breathing valve body (8) is provided with an air inlet (28), an air outlet (14) and a breathing opening (13) corresponding to the nostril of a user, and the air outlet (14) is communicated with an air pipe A (7); be equipped with two baffle (12) respectively in proper order by the direction of middle part to both sides in the breather valve body (8), baffle (12) will breathe and separate into for five chambeies in the valve body (8), and middle chamber is chamber (15) of admitting air, and two chambeies adjacent with chamber (15) of admitting air are transition chamber (16), the adjacent chamber of chamber (15) one side of admitting air is chamber (17) of giving vent to anger dorsad in transition chamber (16), chamber (15) one-way intercommunication of admitting air is in transition chamber (16), transition chamber (16) one-way intercommunication is in the chamber of giving vent to anger, breather valve body (8) are located in air inlet (28) and are corresponding to chamber (15) position department of admitting air, breather valve body (8) are located in gas outlet (14) and are corresponding to chamber (17) position department of giving vent to anger, breather port (13) are located breather valve body (8) and are located in the top position department of.

2. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: through holes A (18) communicated with the two sides of the partition plate are respectively formed in the partition plate (12), and valve plates (9) are respectively arranged on one side of the partition plate (12) back to the air inlet cavity (15) and at positions corresponding to the through holes A (18); when the airflow is blown to the valve plate (9) from the opposite side of the partition plate (12) provided with the valve plate (9), a gap is reserved between the valve plate (9) and the corresponding through hole A (18), and the airflow passes through the through hole A (18); when the air flow is blown to the valve plate (9) from one side of the partition plate (12) provided with the valve plate (9), the valve plate (9) and the corresponding through hole A (18) are closed.

3. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 2, wherein: the partition plate (12) faces one side of the valve plate (9), a connecting piece (19) used for fixing the valve plate (9) is arranged at the upper position of the upper edge of the through hole A (18), and the connecting piece (19) is connected with the upper side of the valve plate (9).

4. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 2, wherein: the valve plate (9) is made of a flexible latex sheet.

5. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: the top of the breathing valve body (8) is provided with a plugging body (20) which is matched with the nostril of a user at the position corresponding to the breathing port (13).

6. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: two ends of the breathing valve body (8) are respectively provided with a hanging lug device B (5), and the hanging lug devices B (5) are fixed at connecting ends (11) arranged at two sides of the breathing valve body (8).

7. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: the top of the breathing valve body (8) and the front side of the breathing port (13) are provided with a positioning boss (25) matched with the nose of a user.

8. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: the breather valve body (8) comprises a valve body main body and a housing (10) which are detachably fixed, and the edge of the housing (10) is fixed with the valve body main body in a sealing way through a sealing clamping strip (21).

9. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 1, wherein: the number of the air inlets (28) is multiple, and the air inlets (28) are uniformly distributed in a row along the air inlet cavity (15); or the air inlet (28) is communicated with an air pipe B (29).

10. The structure of the respiratory valve body of the filter type respirator for breathing in and out as claimed in claim 9, wherein: when the air inlet is communicated with the air pipes B (29), the air inlet (28) is connected with the two air pipes B (29) through a three-way connecting pipe (30).

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