CN111437530A - Respiratory valve body structure of filter type mask for incoming and outgoing calls - Google Patents
Respiratory valve body structure of filter type mask for incoming and outgoing calls Download PDFInfo
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- CN111437530A CN111437530A CN202010347894.7A CN202010347894A CN111437530A CN 111437530 A CN111437530 A CN 111437530A CN 202010347894 A CN202010347894 A CN 202010347894A CN 111437530 A CN111437530 A CN 111437530A
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- 230000000241 respiratory effect Effects 0.000 title claims description 15
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 145
- 230000007704 transition Effects 0.000 claims abstract description 45
- 210000001331 nose Anatomy 0.000 claims description 54
- 238000005192 partition Methods 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 14
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- 210000000887 face Anatomy 0.000 claims description 4
- 210000003928 nasal cavity Anatomy 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 15
- 239000007789 gas Substances 0.000 description 42
- 238000003466 welding Methods 0.000 description 30
- 230000000694 effects Effects 0.000 description 25
- 238000010521 absorption reaction Methods 0.000 description 24
- 239000002131 composite material Substances 0.000 description 23
- 210000000214 mouth Anatomy 0.000 description 22
- 230000006872 improvement Effects 0.000 description 15
- 230000036760 body temperature Effects 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 201000004624 Dermatitis Diseases 0.000 description 6
- 208000010668 atopic eczema Diseases 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 210000003437 trachea Anatomy 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 208000035473 Communicable disease Diseases 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 230000001815 facial effect Effects 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 241000711573 Coronaviridae Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000007105 physical stamina Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000014599 transmission of virus Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/02—Valves
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
- A62B18/025—Halfmasks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
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- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a breathing valve body structure of an incoming and outgoing separate filtering type mask, wherein a breathing valve body is arranged on the inner side of a mask body, the breathing valve body is provided with an air inlet, an air outlet and a breathing opening 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 structure, the breathing valve body structure of the breathing and exhalation filter type mask, disclosed by the invention, can be used for enabling air inhaled from nostrils and exhaled air to enter and exit the breathing valve body from different paths, so that the inhaled air and the exhaled air are separated to different areas which are not communicated with each other and are respectively filtered.
Description
Technical Field
The invention relates to the technical field of filtering type masks, in particular to a breathing valve body structure of a filter type mask for incoming and outgoing calls.
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.
Disclosure of Invention
The invention aims to: 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 invention 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.
According to a further improvement scheme of the invention, two partition plates are sequentially arranged in the breathing valve body from the middle part to the two sides respectively, the partition plates divide the interior of the breathing valve body into five cavities, the middle cavity is an air inlet cavity, the two cavities adjacent to the air inlet cavity are transition cavities, the adjacent cavity of the transition cavity, which is opposite to one side of the air inlet cavity, is an air outlet cavity, the air inlet cavity is communicated with the transition cavities in a one-way mode, the transition cavities are communicated with the air outlet cavity in a one-way mode, the air inlet is arranged at the position, corresponding to the air inlet cavity, of the breathing valve body, the air outlet is arranged at the position, corresponding to the air outlet cavity, of the breathing valve body, and the breathing port is arranged. 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.
According to a further improved scheme of the invention, through holes A communicated with two sides of the partition plate are respectively arranged on the partition plate, and valve plates are respectively arranged at positions corresponding to the through holes A on one side of the partition plate back to the air inlet cavity; 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.
According to a further improved scheme of the invention, a connecting piece for fixing the valve plate is arranged at the upper part of the upper edge of the through hole A on one side of the partition plate facing the valve plate, and the connecting piece is connected with the upper side of the valve plate. 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.
According to a further improvement of the invention, the valve plate is made of a flexible latex sheet. 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.
In a further improvement scheme of the invention, the top of the breathing valve body is provided with a plug body matched with the nostril of a user at the position corresponding to the breathing hole. 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.
According to a further improved scheme of the invention, two ends of the breathing valve body are respectively provided with a hanging lug device B, and the hanging lug devices B are fixed at connecting ends arranged at two sides of the breathing valve body. Through the effect of hangers device B for the breather valve body can be effectively fixed with user's nose.
According to a further improvement scheme of the breathing valve, a positioning boss matched with the nose of a user is arranged on the top of the breathing valve body and positioned on the front side of the breathing opening. 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.
According to a further improvement scheme of the invention, the breathing valve body comprises a valve body main body and a cover shell which are detachably fixed, and the edge of the cover shell is hermetically fixed with the valve body main body through a sealing clamping strip. 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.
In a further improvement scheme of the invention, at least one composite filter layer is arranged between the connecting end of the air pipe A and the outer side of the mask body and between the connecting end 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.
According to a further improvement scheme of the invention, the composite filter layer sequentially comprises an anti-spray layer and a filter base layer along the direction from outside to inside of the mask body. Through the composite filtration of the anti-spray layer and the filter base layer, the filtering effect is ensured.
According to a further improvement of the invention, the anti-spray layer and the moisture absorption layer are made of spun-bonded non-woven fabrics, and the filter base layer is made of melt-blown fabrics.
According to a further improved scheme of the invention, a connecting interface is fixedly arranged at the connecting part of the inner side of the mask body and positioned on the air pipe A, and the connecting interface and the air pipe A are sealed. 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.
According to a further improvement of the invention, the air inlets are provided in plurality, and the air inlets are uniformly distributed in a row along the air inlet cavity. Thereby improving the air intake efficiency and further facilitating the smooth air intake of the user wearing the mask.
According to a further improvement scheme of the mask, the air inlet is connected with the mask body through an air pipe B, the connecting end of the air pipe B and the mask body is located on the outer side of the moisture absorption layer, at least one composite filter layer is arranged between the connecting end and the outer side of the mask body and between the connecting end and the moisture absorption layer, and the connecting part of the air pipe B and the mask body and the connecting part of the air pipe A and the mask body are arranged on two sides of the welding mark A. 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.
According to a further improved scheme of the invention, the air inlet is connected with two air pipes B through a three-way 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.
According to a further improved scheme of the invention, a connecting interface is fixedly arranged at the connecting part of the inner side of the mask body and the air pipe B, and the connecting interface and the air pipe B are sealed. 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.
In a further improvement scheme of the invention, a supporting rib is fixedly arranged in the mask body and at a position corresponding to the joint of the air pipe B and the mask body. 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.
In a further development of the invention, the support ribs are transverse ribs. 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.
According to a further improved scheme of the invention, the air pipe A and the air pipe B are both flexible flat pipes. The flexible flat pipe makes the trachea more comfortable when contacting with the face of the user.
In a further improvement of the invention, a nose clip rod is fixedly arranged on the outer side of the mask body and positioned on the top edge. 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.
In a further improvement of the invention, a nose bridge pad is fixedly arranged at the position corresponding to the nose clamping rod on the inner side of the mask body. 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.
According to a further improvement scheme of the mask, the edge of the mask body, the position at the top of the mask body and the position at the bottom of the mask body are respectively and correspondingly provided with a welding mark B and a welding mark 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.
In a further improvement of the invention, the welding mark A divides the mask body into an upper area A and a lower area B. 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 invention has the beneficial effects that:
firstly, the breathing valve body structure of the incoming and outgoing filter type mask is characterized in that the filter type mask is 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 inhalation process plays a role in cooling the face of a person in an air cavity of the mask during breathing; 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.
Secondly, according to the breathing valve body structure of the filter type breathing mask for incoming and outgoing air, 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 inhaled air and the exhaled air are separated to different areas which are not communicated with each other to be filtered respectively, and the inhaled air and the exhaled air are prevented from being mixed and mutually influenced in an air cavity of the breathing mask to the maximum extent.
Thirdly, according to the breathing valve body structure of the incoming and outgoing filter type 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 faces, and the applicability is improved.
Fourthly, according to the breathing valve body structure of the incoming and outgoing separate filtering type mask, the structure of the mask body can obviously improve the filtering effect of the mask body.
Fifthly, according to the breathing valve body structure of the incoming and outgoing split-filtration type mask, the filtering effect of nose breathing and the smoothness of the nose breathing can be considered at the same time 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 breathing in and out 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 a user, the mask body 1 sequentially comprises a plurality of layers of composite filter layers 31 and a moisture absorption layer 32 from outside to 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 is used for sealing and fixing the welding mark a22 position between the layers of the mask body 1, 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 positioned at 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 invention is used, the gas which is breathed in and exhaled is separated from the gas which is exhaled 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, 3, 6 and 7, the breathing valve structure of the filter mask for breathing in and out 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 8, the breathing valve 8 is provided with an air inlet 28, an air outlet 14 and a breathing opening 13 corresponding to the nostril of a user, the mask body 1 sequentially comprises a plurality of layers of composite filter layers 31 and a moisture absorption layer 32 from outside to 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 of the mask body 1 is provided with a transverse welding mark a22, the transverse welding mark a22 is used for fixing the welding mark a22 position 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 1 is positioned 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 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 invention is used, the gas which is breathed in and exhaled is separated from the gas which is exhaled 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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| Application Number | Priority Date | Filing Date | Title |
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| CN202010347894.7A CN111437530B (en) | 2020-04-28 | 2020-04-28 | Breathe into breathing valve body structure of exhalant branch filter formula gauze mask |
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| CN202010347894.7A CN111437530B (en) | 2020-04-28 | 2020-04-28 | Breathe into breathing valve body structure of exhalant branch filter formula gauze mask |
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| CN111437530A true CN111437530A (en) | 2020-07-24 |
| CN111437530B CN111437530B (en) | 2024-05-14 |
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| CN202010347894.7A Active CN111437530B (en) | 2020-04-28 | 2020-04-28 | Breathe into breathing valve body structure of exhalant branch filter formula gauze mask |
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Cited By (3)
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| JP7121877B1 (en) * | 2022-03-02 | 2022-08-18 | 和典 酒井 | mask aid |
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| CN111437530B (en) | 2024-05-14 |
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