CN111437530B - Breathe into breathing valve body structure of exhalant branch filter formula gauze mask - Google Patents
Breathe into breathing valve body structure of exhalant branch filter formula gauze mask Download PDFInfo
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- CN111437530B CN111437530B CN202010347894.7A CN202010347894A CN111437530B CN 111437530 B CN111437530 B CN 111437530B CN 202010347894 A CN202010347894 A CN 202010347894A CN 111437530 B CN111437530 B CN 111437530B
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 148
- 230000007704 transition Effects 0.000 claims abstract description 47
- 238000005192 partition Methods 0.000 claims abstract description 33
- 238000001914 filtration Methods 0.000 claims abstract description 29
- 230000000241 respiratory effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 239000004816 latex Substances 0.000 claims description 4
- 229920000126 latex Polymers 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 34
- 238000003466 welding Methods 0.000 description 27
- 238000010521 absorption reaction Methods 0.000 description 24
- 230000000694 effects Effects 0.000 description 24
- 239000002131 composite material Substances 0.000 description 21
- 230000006872 improvement Effects 0.000 description 19
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 210000003437 trachea Anatomy 0.000 description 7
- 201000004624 Dermatitis Diseases 0.000 description 6
- 208000010668 atopic eczema Diseases 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 244000005700 microbiome Species 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 230000036760 body temperature Effects 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 208000035473 Communicable disease Diseases 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- 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 split-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 partition boards are sequentially arranged in the breather valve body from the middle to the two sides respectively, the partition boards divide the breather 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 cavities on one side of the transition cavities back to the air inlet cavity are air outlet cavities, an air inlet is arranged at the position of the air inlet cavity, an air outlet is arranged at the position of the air outlet cavity, and a breathing port is arranged at the top position of the transition cavity. According to the structure, the breathing valve body structure of the breathing and exhaling partial filtering mask disclosed by the invention is used for enabling air inhaled by nostrils and exhaled air to enter and exit from the breathing valve body from different paths, so that the inhaled air and the exhaled air are separated into different areas which are not communicated with each other for filtering respectively.
Description
Technical Field
The invention relates to the technical field of filter type masks, in particular to a breathing valve body structure of an incoming and outgoing split-filter type mask.
Background
The mask is a sanitary article, and is generally used for filtering air entering the mouth and nose when worn at the mouth and nose positions so as to prevent harmful gases, smell and spray from entering and exiting the mouth and nose of a wearer, and is made of gauze, non-woven fabrics, melt-blown cloth or paper and the like.
The mask has a certain filtering effect on air entering the lung, and has a very good effect when the mask is worn when the mask works in environments polluted by dust and the like during the flow of respiratory infectious diseases.
Most of the masks in the market at present are air filtering masks, and the air in the sucked human body is filtered through the cloth structure of the masks, and meanwhile, the air exhaled by the human body is filtered and then discharged to the outside.
Most of the masks in the market at present have the breathing in and breathing out realized through the air permeability of the fabric of the mask. The gas which is close to the temperature of the human body and exhales is circulated and stays in the air cavity of the mask, the exhaled moisture and microorganisms are easy to stay between the inner layer of the mask and the face in the mask, and the face of a person brings strong uncomfortable feeling along with the warming of the weather. When the medical protective mask is worn, in order to ensure air tightness, the edge of the mask is tightly attached to the face of a person, so that the face of the person is pressed more deeply. Because of the airtight effect of the mask, users wearing the mask currently feel stuffy and moist, and the users wearing the mask for a long time are easy to cause eczema, unsmooth breathing and uncomfortable to wear, so that users do not need to take off the mask.
Disclosure of Invention
The invention aims at: the utility model provides a breathe valve body structure of breathing out partial filtration formula gauze mask that the breathing valve body formed through the gauze mask body and breathing out, the user who wears the use gauze mask can be relaxed, conveniently with the gas exhaled out the gauze mask, improves the travelling comfort of wearing the gauze mask breathing to avoid the gas of exhaling to remain the gathering in the cavity between gauze mask and user's facial contact surface, and make the user feel uncomfortable even arouse the eczema; the breathing valve body can enable air and exhaled air inhaled by nostrils 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 a user, so that users with different facial forms can use the mask body and the breathing valve body, and the applicability is improved; the structure of the mask body can obviously improve the filtering effect of the mask body; the connection position of the hose of the breathing valve body and the mask body can not only give consideration to the filtering effect of nose breathing and the smoothness of nose breathing; the number of layers of each filter layer of the mask body through which the nose breathes is larger than that of each filter layer of the mask body through which the nose breathes, and the structure can guide a user to habit to use the nose to breathe through the breathing valve body, so that the utilization rate of the breathing valve body is improved.
The technical scheme adopted by the invention is as follows:
the utility model provides a breathe valve body structure of breathing in and exhaling branch filter mask, includes the gauze mask body that both sides were equipped with hangers device A respectively, the inboard of the gauze mask body is equipped with the breathing valve body, the breathing valve body is equipped with air inlet, gas outlet and the breathing mouth that corresponds with user's nostril, the gauze mask body is from interior to exterior including moisture absorption layer and multilayer composite filter layer in proper order, the border sealing fixation of the gauze mask body, the border position department between the each layer of messenger gauze mask body is sealed fixed respectively, the middle part of the gauze mask body is equipped with horizontal welding mark A, horizontal welding mark A makes the welding mark A position punishment between each layer of the gauze mask body sealed fixed, the gas outlet is located the same side of welding mark A through trachea A and gauze mask body respectively, trachea A and the link of the gauze mask body are located the outside of 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 temperature of a human body and contains carbon dioxide, moisture, microorganisms and the like does not directly circulate and stay in the air cavity of the face of a person attached to the mask for a short time. The mask can greatly reduce the stuffiness and the moist feeling of the face of a person in the air cavity of the mask, can keep good air permeability when the person wearing the mask inhales for a long time, and can reduce the probability of eczema to the minimum, thereby enhancing the breathing comfort of the person wearing the mask.
The invention further improves the scheme that two partition boards are sequentially arranged in the breather valve body from the middle to the two sides, the partition boards divide the breather 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 transition cavity back to the air inlet cavity is an air outlet cavity, the air inlet cavity is unidirectionally communicated with the transition cavity, the transition cavity is unidirectionally communicated with the air outlet cavity, the air inlet is arranged at the position of the breather valve body corresponding to the air inlet cavity, the air outlet is arranged at the position of the breather valve body corresponding to the air outlet cavity, and the breathing port is arranged at the top position of the breather valve body corresponding to the transition cavity. The structure of the valve body realizes that the breathing valve body shunts the breathing gas to different vents, so that the mixing and the mutual influence of the incoming and the expired gas are avoided to the maximum extent.
According to a further improvement scheme, through holes A communicated with two sides of the partition board are respectively formed in the partition board, and valve plates are respectively arranged at positions corresponding to the through holes A and on one side of the partition board, which is opposite to the air inlet cavity; when the air flow is blown to the valve plate from the opposite side of the valve plate provided with the valve plate by the partition plate, a gap is reserved between the valve plate and the corresponding through hole A, and the air flow passes through the through hole A; when the air flow is blown to the valve block from one side of the partition plate provided with the valve block, the valve block and the corresponding through hole A are closed to pass through the specific structures of the valve block and the partition plate, so that the effect of distributing the breathing gas in the breathing valve body is achieved.
According to a further improvement scheme of the invention, a connecting piece for fixing the valve plate is arranged on one side of the partition plate facing the valve plate and located at the upper position of the upper edge of the through hole A, 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 effect of valve block gravity and the positive pressure or negative pressure effect that the air current formed to can be convenient for valve block and through-hole A's timely opening and closure.
According to a further improvement scheme, the valve plate is made of soft latex. The valve block of emulsion piece can further be favorable to valve block and through-hole A's timely opening and closure to can guarantee the sealed effect when closing.
According to a further improvement scheme, a plug-in body matched with nostrils of a user is arranged at the top of the breathing valve body and corresponds to the breathing opening. Through the action of the stuffing body, the breathing port of the breathing valve body can be positioned with the nostril, and the nostril is prevented from being directly communicated with the space in the mask body without passing through the breathing valve body.
According to a further improved scheme, 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 on two sides of the breathing valve body. Through the effect of the hanging device B, the breather valve body can be effectively fixed with the nose of a user.
According to a further improvement scheme, a positioning boss matched with the nose of a user is arranged on the top of the breathing valve body and positioned at the front side of the breathing hole. Through the action of the positioning boss, the whole breathing valve body is positioned with the nose of a user, and the breathing valve body can be prevented from moving in use due to the action force of the hanging lug device B.
According to a further improvement, the breathing valve body comprises a valve body and a housing which are detachably fixed, and the edge of the housing is fixed with the valve body in a sealing manner through a sealing clamping strip. The valve plate in the breather valve body is convenient to replace through the effect of the housing, and the breather valve body is convenient to clean.
The invention further adopts the improvement that 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 air exhaled by the connecting end of the air pipe A and the mask body is discharged to the atmosphere after being filtered, and when the user of the mask body is an infectious disease patient, the infectious disease patient can be prevented from infecting other people.
According to a further improvement scheme, the composite filter layer sequentially comprises a spray-proof layer and a filter base layer along the direction from outside to inside of the mask body. The filtering effect is ensured through the composite filtering of the spray-proof layer and the filtering base layer.
According to a further improved scheme, 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 cloth.
The invention further adopts the improvement that a connecting interface is fixedly arranged at the connecting part of the inner side of the mask body and the trachea A, and the connecting interface is sealed with the trachea A. The connecting interface is connected with the air pipe, which is not only convenient for the independent production of the mask body and the breathing valve body, but also is convenient for the connection of the air pipe A of the breathing valve body and the mask body.
According to a further improvement scheme, a plurality of air inlets are formed, and the air inlets are uniformly distributed in a row along the air inlet cavity. Thereby improving the air inlet efficiency and being further convenient for the user to wear the mask to inhale smoothly.
The invention further adopts the improvement that the air inlet is connected with the mask body through the air pipe B, the connecting end of the air pipe B and the mask body is positioned at the outer side of the moisture absorption layer, at least one layer of 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 positioned at two sides of the welding mark A. The air inlet of the breathing valve body is connected with the mask body through the air pipe B, so that besides the effect of inhaling smoothly of a user wearing the mask is improved, the air inlet and outlet of the breathing valve body can be guaranteed to exhale and inhale completely through two areas which are not communicated with each other of the mask body, and the exhaled air is prevented from influencing the inhaled air at the temperature angle or the component angle of the exhaled air.
According to a further improvement scheme, the air inlet is connected with the two air pipes B through a three-way connecting pipe. The air inlet is connected with the mask body through the three-way connecting pipe and connected with the two air pipes B, so that the air inlet efficiency is further improved, and the air inlet area formed at the connecting position of the air pipes B and the mask body can be dispersed, so that the air suction force can be reduced, the filtering effect can be improved, and even if one side of the air inlet is blocked, the other side of the air inlet can be continuously used.
The invention further adopts the improvement that a connecting interface is fixedly arranged at the connecting part of the inner side of the mask body and the trachea B, and the connecting interface is sealed with the trachea B. The connecting interface is connected with the air pipe, which is not only convenient for the independent production of the mask body and the breathing valve body, but also is convenient for the connection of the air pipe B of the breathing valve body and the mask body.
According to a further improvement scheme, the mask body is also fixedly provided with supporting ribs at positions corresponding to the connecting positions of the air pipe B and the mask body. Through the effect of support rib for the gauze mask body of gas tube B and gauze mask body hookup location department can expand throughout, thereby improved the gauze mask body intensity of this position department, guaranteed that the gauze mask body of this position department expands throughout, and then can increase filtration area of contact, improvement filter effect and air inlet efficiency as far as possible.
In a further development of the invention, the support ribs are transverse ribs. The effect of the transverse ribs ensures the air inlet efficiency and the filtering effect, and simultaneously is convenient for the production of the mask body, and also accords with the conventional use of the mask body.
According to a further improved scheme, the air pipe A and the air pipe B are flexible flat pipes. The flexible flat tube makes the trachea more comfortable when contacting the face of the user.
The invention further adopts the improvement that a nose clamping rod is fixedly arranged at the outer side of the mask body and at the edge of the top. Through the effect of nose clip pole for the gauze mask is laminated more with different user's face, avoids there being the gap between the gauze mask body and the user's face and influences the result of use of gauze mask.
The invention further adopts the improvement that a nose beam pad is fixedly arranged at the position corresponding to the nose clip rod on the inner side of the mask body. Through the function of nose pad, avoid the user to wear the gauze mask for a long time and lead to producing wearing and tearing in nose bridge position department.
According to a further improvement scheme, welding marks B and C are correspondingly arranged on the edge of the mask body and at the top position and the bottom position of the mask body respectively. Through the effect of welding mark B and welding mark 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 weld mark A, make the gauze mask body separate into two regions that are not linked together each other, the breathing valve body's of being convenient for realization in the gauze mask use inlet and separation of giving vent to anger.
The invention has the beneficial effects that:
According to the breathing valve body structure of the breathing partial-filtering type mask, disclosed by the invention, a partial-filtering type mask formed by combining the mask body and the breathing valve body is worn by a user who wears the breathing valve body, so that the user can easily and conveniently breathe out air from the breathing valve body, and on one hand, the air inhalation process in breathing can play a role in reducing the temperature of the face of a person in the air cavity of the breathing valve body; on the other hand, the exhaled gas which is close to the temperature of the human body and contains carbon dioxide, moisture, microorganisms and the like does not directly circulate and stay in the air cavity of the face of the person in the mask in a short time. The mask can greatly reduce the stuffiness and the moist feeling of the face of a person in the air cavity of the mask, can keep good air permeability when the person wearing the mask inhales for a long time, and can reduce the probability of eczema to the minimum, thereby enhancing the breathing comfort of the person wearing the mask.
According to the breathing valve body structure of the breathing and exhaling split-filtering type mask, the breathing valve body can enable air inhaled by nostrils and air exhaled by the nostrils to enter and exit the breathing valve body from different paths, so that the inhaled air and the exhaled air are separated into different areas which are not communicated with each other for filtering respectively, and mixing and mutual influence of the inhaled air and the exhaled air in the mask air cavity are avoided to the greatest extent.
Third, the breathing valve body structure of the breathing and exhaling split-filtering type mask is characterized in that 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 a user, so that users with different face shapes can use the mask body and the breathing valve body, and the applicability is improved.
Fourth, the breathing valve body structure of the breathing and breathing split-filtering type mask can obviously improve the filtering effect of the mask body due to the structure of the mask body.
Fifth, according to the breathing valve body structure of the breathing split-filtering type mask, the hose of the breathing valve body is connected with the mask body, so that the filtering effect of nose breathing and the smoothness of nose breathing can be considered; the number of layers of each filter layer of the mask body through which the mouth directly breathes is larger than that of each filter layer of the mask body through which the nose breathes through the breathing valve body, and the structure can guide a user to habit to use the nose to breathe through the breathing valve body, so that the use rate of the breathing valve body is improved.
Drawings
Fig. 1 is a schematic perspective view of the outside of a mask body.
Fig. 2 is an inner perspective view of the mask body of example 1.
Fig. 3 is an exploded enlarged perspective view of the breather valve body.
Fig. 4 is a schematic side perspective view of the mask body of example 1.
Fig. 5 is an enlarged schematic side sectional view of the mask body of example 1 at the position of the connection interface of the air tube B and the weld mark a.
Fig. 6 is a schematic side perspective view of the mask body of example 2.
Fig. 7 is an enlarged schematic bottom view of the breather valve body of example 2.
Detailed Description
Example 1
As can be seen from fig. 1 to fig. 5, the breathing valve body structure of the breathing partial-filtration type mask according to the present invention comprises a mask body 1 with hanging devices A2 at two sides, wherein the breathing valve body 8 is arranged at the inner side of the mask body 1, 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 moisture absorption layer 32 and a multi-layer composite filter layer 31 from inside to outside, the edge of the mask body 1 is sealed and fixed, the edge positions among the layers of the mask body 1 are respectively sealed and fixed, a transverse welding mark a22 is arranged at the middle part of the mask body 1, the welding mark a22 positions among the layers of the mask body 1 are respectively sealed and fixed, 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 at the same side of the welding mark a22, and the joint end of the air pipe A7 and the mask body 1 is positioned at the outer side of the moisture absorption layer 32.
Two partition boards 12 are sequentially arranged in the breather valve body 8 from the middle to the two sides, the partition boards 12 divide the breather 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 cavities on one side of the transition cavities 16 back to the air inlet cavity 15 are air outlet cavities 17, the air inlet cavities 15 are unidirectionally communicated with the transition cavities 16, the transition cavities 16 are unidirectionally communicated with the air outlet cavities, the air inlet 28 is arranged at the position of the breather valve body 8 corresponding to the air inlet cavities 15, the air outlet 14 is arranged at the position of the breather valve body 8 corresponding to the air outlet cavities 17, and the breather port 13 is arranged at the top position of the breather valve body 8 corresponding to the transition cavities 16.
The partition plate 12 is respectively provided with a through hole A18 communicated with two sides of the partition plate, and a valve plate 9 is respectively arranged at the position corresponding to the through hole A18 on one side of the partition plate 12, which is opposite to the air inlet cavity 15; when the air flow 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 A18, and the air flow passes through the through hole A18; when the air flow is blown to the valve plate 9 from the side of the partition plate 12 provided with the valve plate 9, the valve plate 9 and the corresponding through hole A18 are closed.
The baffle 12 is provided with a connecting piece 19 for fixing the valve plate 9 at the upper position of the upper edge of the through hole A18 on one side facing the valve plate 9, and the connecting piece 19 is connected with the upper side of the valve plate 9.
The valve plate 9 is made of soft latex.
The top of the respiration valve body 8 is provided with a plug-in body 20 matched with the nostril of the user at the position corresponding to the respiration opening 13.
The two ends of the breather valve body 8 are respectively provided with a hanging lug device B5, and the hanging lug devices B5 are fixed at connecting ends 11 arranged on two sides of the breather valve body 8.
The top of the respiration valve body 8, which is positioned at the front side of the respiration port 13, is provided with a positioning boss 25 which is matched with the nose of the user.
The respiration valve body 8 comprises a valve body and a housing 10 which are detachably fixed, and the edge of the housing 10 is sealed and fixed with the valve body 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 comprises a spray-proof layer 34 and a filter base layer 33 in sequence along the direction from outside to inside of the mask body 1.
The material of the anti-spray layer 34 and the moisture absorption layer 32 is spun-bonded non-woven fabric, and the material of the filter base layer 33 is melt-blown fabric.
The inside of the mask body 1 and the connecting part positioned in the air pipe A7 are fixedly provided with a connecting interface 6, and the connecting interface 6 is sealed with the air pipe A7.
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 layer of 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 two sides of a welding mark A22 are arranged at the connecting position of the air pipe B29 and the mask body 1 and the connecting position of the air pipe A7 and the mask body 1.
The air inlet 28 is connected with two air pipes B29 through a three-way connecting pipe 30.
The inside of the mask body 1 and the connecting part positioned on the air pipe B29 are fixedly provided with a connecting interface 6, and the connecting interface 6 is sealed with the air pipe B29.
Support ribs 35 are also fixedly arranged in the mask body 1 and correspond to the positions at the connection positions of the air pipes B29 and the mask body 1; the support ribs are transverse ribs 35.
The air pipe A7 and the air pipe B29 are flexible flat pipes.
The outer side of the mask body 1 and the edge at the top are fixedly provided with nose clamping rods 3.
The nose pad 4 is fixedly arranged at the inner side of the mask body 1 and at the position corresponding to the nose clip 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 of the embodiment is used, the breathing valve body 8 is firstly placed under the nose of a user, the plug-in body 20 is correspondingly plugged into the nostril, and then the 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 breathing valve body 8 is adjusted, so that the positioning boss 25 of the breathing valve body 8 is matched and contacted with the nose of a user for positioning; then, the ear hanging device A2 of the mask body 1 is also 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 with his nose. When the nose inhales, external air enters the air pipe B29 after being filtered by at least one layer of compound filter layer 31 in the area A26 of the mask body 1, and negative pressure is generated in the transition cavity 16 communicated with nostrils of the nose due to the inhalation of the nose, at the moment, the negative pressure in the transition cavity 16 opens the valve plate 9 between the transition cavity 16 and the air inlet cavity 15, and closes the valve plate 9 between the transition cavity 16 and the 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 nostrils corresponding to the nose through the breathing port 13 of the transition cavity 16; when the nose exhales, air in the nostrils enters the transition cavity 16 through the breathing port 13, positive pressure is generated in the transition cavity 16 communicated with the nostrils of the nose due to the exhalation of the nose, at the moment, the positive pressure in the transition cavity 16 enables the valve plate 9 between the transition cavity 16 and the air inlet cavity 15 to be closed, and the valve plate between the transition cavity 16 and the air outlet cavity 17 to be opened, so that the air exhaled in the nostrils 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 discharged outwards after being filtered by the composite filter layer 31 of at least one layer of the region B27 of the mask body 1.
After wearing the mask of this embodiment, the mouth inevitably breathes in or out the gas through the mouth directly when talking and communicating. When inhaling through the mouth, the external air sequentially passes through each composite filter layer 31 and the moisture absorption layer 32 of the mask body 1 along the air flow direction, and then enters the cavity between the mask body 1 and the face of the user and enters the mouth of the user; when the air is exhaled through the mouth, the air exhaled from the mouth sequentially passes through the moisture absorption layer 32 and each composite filtering layer 31 of the mask body 1 along the air flowing direction, and then the air in the mouth enters the cavity between the mask body 1 and the face of the user, and then outwards enters the external atmosphere after being filtered by the mask body 1.
When the invention is used, the gas which is breathed in and breathed out is separated from the gas inlet and the gas outlet through the breathing valve body 8, the gas pipe A7 and the gas pipe B29. When the mask body 1 is connected with the air pipe B29 to enter the range of the area A26 during air intake, the area A26 of the mask body 1 is sealed by the welding mark A22 at the bottom 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 or between the filter base layer 33 and the moisture absorption layer 32 of the mask body, so that the connecting interface 6 in the area A26 forms an air inlet bag, and further air is ensured to be inhaled after being filtered. When the mask body is in air-out, the exhaled air which is close to the human body temperature is connected with the mask body 1 through the air pipe A7 and enters the range of the area B27, the area B27 of the mask 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 or between the filter base layer 33 and the moisture absorption layer 32 of the mask body, so that an air-out bag is formed at the connecting interface 6 in the area B27, and further, the air is sucked after being filtered, and the air is discharged after being filtered. When a user inhales, the negative pressure generated by the air inlet cavity is relatively concentrated, so that part of external air is filtered by each part of the mask body 1 and then enters the area between the mask body 1 and the face of the user, and the formed air flow can blow to the face of the user, thereby playing a certain role in cooling the user; when a user exhales, the temperature of the exhaled air is similar to the body temperature, and the exhaled air is exhausted by the channels, so that the exhaled air does not stay in the air cavity between the mask body 1 and the face of the user in a circulating way, 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 among the layers, and the air inlet bag is connected with the air inlet bag through an air suction pipe to filter and suck air in the outer layers of the air inlet bag; the lower part of the welding mark A22 is a multi-layer composite filter layer for exhausting, an exhaust bag is formed between the layers, and the expired air is exhausted into the exhaust bag through an exhaust pipe and naturally dispersed into the air after being filtered. On one hand, the air is inhaled in the breathing process, so that the face of a person in the mask air cavity is cooled; on the other hand, the gas which is exhaled by the person and has similar temperature to the human body and contains carbon dioxide, moisture, microorganisms and the like does not directly circulate and stay in the air cavity of the face of the person in the mask in a short time. The mask can greatly reduce the stuffiness and the moist feeling of the face of a person in the air cavity of the mask, can keep good air permeability when the mask is worn for inhaling for a long time, and also reduces the probability of causing eczema to the minimum, thereby enhancing the breathing comfort of the mask.
The technical scheme of the embodiment can protect oneself and others, and is suitable for medical protection.
Example 2
As can be seen from fig. 1, fig. 3, fig. 6 and fig. 7, the breathing valve body structure of the breathing mask according to the present invention includes mask bodies 1 with hanging devices A2 at two sides, the inner sides of the mask bodies 1 are provided with breathing valve bodies 8, the breathing valve bodies 8 are provided with air inlets 28, air outlets 14 and breathing openings 13 corresponding to nostrils of users, the mask bodies 1 sequentially include moisture absorption layers 32 and multiple layers of composite filter layers 31 from inside to outside, edges of the mask bodies 1 are sealed and fixed, edge positions among the layers of the mask bodies 1 are respectively sealed and fixed, a transverse welding mark a22 is provided at the middle part of the mask bodies 1, the positions of the welding marks a22 among the layers of the mask bodies 1 are respectively sealed and fixed, the air outlets 14 are respectively communicated with the mask bodies 1 through air pipes A7, joints of the air pipes A7 and the mask bodies 1 are located at the same side of the welding marks a22, and connecting ends of the air pipes A7 and the mask bodies 1 are located at the outer sides of the moisture absorption layers 32.
Two partition boards 12 are sequentially arranged in the breather valve body 8 from the middle to the two sides, the partition boards 12 divide the breather 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 cavities on one side of the transition cavities 16 back to the air inlet cavity 15 are air outlet cavities 17, the air inlet cavities 15 are unidirectionally communicated with the transition cavities 16, the transition cavities 16 are unidirectionally communicated with the air outlet cavities, the air inlet 28 is arranged at the position of the breather valve body 8 corresponding to the air inlet cavities 15, the air outlet 14 is arranged at the position of the breather valve body 8 corresponding to the air outlet cavities 17, and the breather port 13 is arranged at the top position of the breather valve body 8 corresponding to the transition cavities 16.
The partition plate 12 is respectively provided with a through hole A18 communicated with two sides of the partition plate, and a valve plate 9 is respectively arranged at the position corresponding to the through hole A18 on one side of the partition plate 12, which is opposite to the air inlet cavity 15; when the air flow 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 A18, and the air flow passes through the through hole A18; when the air flow is blown to the valve plate 9 from the side of the partition plate 12 provided with the valve plate 9, the valve plate 9 and the corresponding through hole A18 are closed.
The baffle 12 is provided with a connecting piece 19 for fixing the valve plate 9 at the upper position of the upper edge of the through hole A18 on one side facing the valve plate 9, and the connecting piece 19 is connected with the upper side of the valve plate 9.
The valve plate 9 is made of soft latex.
The top of the respiration valve body 8 is provided with a plug-in body 20 matched with the nostril of the user at the position corresponding to the respiration opening 13.
The two ends of the breather valve body 8 are respectively provided with a hanging lug device B5, and the hanging lug devices B5 are fixed at connecting ends 11 arranged on two sides of the breather valve body 8.
The top of the respiration valve body 8, which is positioned at the front side of the respiration port 13, is provided with a positioning boss 25 which is matched with the nose of the user.
The respiration valve body 8 comprises a valve body and a housing 10 which are detachably fixed, and the edge of the housing 10 is sealed and fixed with the valve body 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 comprises a spray-proof layer 34 and a filter base layer 33 in sequence along the direction from outside to inside of the mask body 1.
The material of the anti-spray layer 34 and the moisture absorption layer 32 is spun-bonded non-woven fabric, and the material of the filter base layer 33 is melt-blown fabric.
The inside of the mask body 1 and the connecting part positioned in the air pipe A7 are fixedly provided with a connecting interface 6, and the connecting interface 6 is sealed with the air pipe A7.
The air inlets 28 are provided in plurality, and the air inlets 28 are uniformly distributed in a row along the air inlet chamber 15.
The air pipe A7 is a flexible flat pipe.
The outer side of the mask body 1 and the edge at the top are fixedly provided with nose clamping rods 3.
The nose pad 4 is fixedly arranged at the inner side of the mask body 1 and at the position corresponding to the nose clip 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 of the embodiment is used, the breathing valve body 8 is firstly placed under the nose of a user, the plug-in body 20 is correspondingly plugged into the nostril, and then the 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 breathing valve body 8 is adjusted, so that the positioning boss 25 of the breathing valve body 8 is matched and contacted with the nose of a user for positioning; then, the ear hanging device A2 of the mask body 1 is also 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 with his nose. When the nose inhales, external air enters the cavity between the mask body 1 and the face of a user after being filtered by the composite filter layer 31 and the moisture absorption layer 32 of the mask body 1, 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 inhalation of the nose, at the moment, the negative pressure in the transition cavity 16 enables the valve plate 9 between the transition cavity 16 and the air inlet cavity 15 to be opened, and enables the valve plate 9 between the transition cavity 16 and the air outlet cavity 17 to be closed, 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 the breathing port 13 of the transition cavity 16; when the nose exhales gas, the gas in the nostril enters the transition cavity 16 through the breathing port 13, and positive pressure is generated in the transition cavity 16 communicated with the nostril of the nose due to the exhalation of the nose, at the moment, the positive pressure in the transition cavity 16 enables the valve plate 9 between the transition cavity 16 and the air inlet cavity 15 to be closed, and enables the valve plate between the transition cavity 16 and the air outlet cavity 17 to be opened, so that the gas 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 gas pipe A7 communicated with the air outlet cavity 17, and is filtered and then discharged outwards through the area B27 of the mask body 1.
After wearing the mask of this embodiment, the mouth inevitably breathes in or out the gas through the mouth directly when talking and communicating. When inhaling through the mouth, the external air sequentially passes through each composite filter layer 31 and the moisture absorption layer 32 of the mask body 1 along the air flow direction, and then enters the cavity between the mask body 1 and the face of the user and enters the mouth of the user; when the air is exhaled through the mouth, the air exhaled from the mouth sequentially passes through the moisture absorption layer 32 and each composite filtering layer 31 of the mask body 1 along the air flowing direction, and then the air in the mouth enters the cavity between the mask body 1 and the face of the user and then outwards enters the external atmosphere through the mask body 1.
When the invention is used, the gas which is breathed in and breathed out is separated from the gas inlet and the gas outlet through the breathing valve body 8, the gas pipe A7 and the gas pipe B29. The air is directly filtered and sucked through the mask body 1 during air intake. When the mask body is in air-out, the exhaled air with the temperature close to the human body temperature is connected with the mask body 1 through the air pipe A7 and enters the range of the area B27, the area B27 of the mask 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 or between the filter base layer 33 and the moisture absorption layer 32 of the mask body, so that an air-out bag is formed at the connecting interface 6 in the area B27, and further, the air is ensured to be inhaled after being filtered, and the air is ensured to be discharged after being filtered. When a user inhales, the negative pressure generated by the air inlet cavity is relatively concentrated, so that part of external air is filtered by each part of the mask body 1 and then enters the area between the mask body 1 and the face of the user, and the formed air flow can blow to the face of the user, thereby playing a certain role in cooling the user; when the user exhales, the temperature of the exhaled air is similar to the body temperature, and the exhaled air is exhausted by the channels, so that the exhaled air does not stay in the air cavity between the mask body 1 and the face of the user in a circulating way, and the comfort of wearing the mask is enhanced.
The upper part of the welding mark A22 is used for suction air filtration; the lower part of the welding mark A22 is a multi-layer composite filter layer for exhausting, an exhaust bag is formed between the layers, and the expired air is exhausted into the exhaust bag through an exhaust pipe and naturally dispersed into the air after being filtered. On one hand, the air is inhaled in the breathing process, so that the face of a person in the mask air cavity is cooled; on the other hand, the gas which is exhaled by the person and has similar temperature to the human body and contains carbon dioxide, moisture, microorganisms and the like does not directly circulate and stay in the air cavity of the face of the person in the mask in a short time. The mask can greatly reduce the stuffiness and the moist feeling of the face of a person in the air cavity of the mask, can keep good air permeability when the mask is worn for inhaling for a long time, and also reduces the probability of causing eczema to the minimum, thereby enhancing the breathing comfort of the mask.
The technical scheme of the embodiment can effectively prevent the expired gas with virus from infecting other people, and is suitable for medical surgery.
The breathing valve body 8 of the present application is not limited to use in a mask, and a breathing mask device that needs to shunt ventilation of exhaled gas and inhaled gas may be used.
The foregoing has outlined and described the basic principles, features, and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which have been described in the foregoing description merely illustrates the principle of the application, but that various changes and modifications may be made without departing from the scope of the application as defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a breathe valve body structure of breathing in and exhale branch filter formula gauze mask which characterized in that: the 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 nostrils of a user, and the air outlet (14) is communicated with an air pipe A (7); two partition boards (12) are sequentially arranged in the breathing valve body (8) from the middle to the two sides, the partition boards (12) divide the inside of 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 cavities on one side of the transition cavities (16) back to the air inlet cavity (15) are air outlet cavities (17), the air inlet cavities (15) are unidirectionally communicated with the transition cavities (16), the transition cavities (16) are unidirectionally communicated with the air outlet cavities, the air inlet (28) is arranged at the position of the breathing valve body (8) corresponding to the air inlet cavities (15), the air outlet (14) is arranged at the position of the breathing valve body (8) corresponding to the air outlet cavities (17), and the breathing port (13) is arranged at the top position of the breathing valve body (8) corresponding to the transition cavities (16).
The partition board (12) is respectively provided with a through hole A (18) communicated with two sides of the partition board, and a valve plate (9) is respectively arranged at the position corresponding to the through hole A (18) on one side of the partition board (12) opposite to the air inlet cavity (15); when the air flow is blown to the valve plate (9) from the opposite side of the valve plate (9) arranged on the partition plate (12), a gap is reserved between the valve plate (9) and the corresponding through hole A (18), and the air flow passes through the through hole A (18); when air flow is blown to the valve plate (9) from one side of the valve plate (9) provided with the valve plate (9) by the partition plate (12), the valve plate (9) is closed with the corresponding through hole A (18);
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.
2. A respiratory valve body structure of an incoming and outgoing partial filter mask as claimed in claim 1, wherein: and a connecting piece (19) for fixing the valve plate (9) is arranged on one side of the partition plate (12) facing the valve plate (9) and 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).
3. A respiratory valve body structure of an incoming and outgoing partial filter mask as claimed in claim 1, wherein: the valve plate (9) is made of soft latex.
4. A respiratory valve body structure of an incoming and outgoing partial filter mask as claimed in claim 1, wherein: the top of the respiration valve body (8) is provided with a plug-in body (20) matched with the nostril of a user at the position corresponding to the respiration opening (13).
5. A respiratory valve body structure of an incoming and outgoing partial filter mask as claimed in claim 1, wherein: the 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 on two sides of the breathing valve body (8).
6. A respiratory valve body structure of an incoming and outgoing partial filter mask as claimed in claim 1, wherein: the breathing valve body (8) comprises a valve body and a housing (10) which are detachably fixed, and the edge of the housing (10) is fixed with the valve body in a sealing way through a sealing clamping strip (21).
7. A respiratory valve body structure of an incoming and outgoing partial filter mask as claimed in claim 1, wherein: the air inlets (28) are provided with a plurality of air inlets (28), 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).
8. The respiratory valve body structure of the breathing mask for the partial filtration of the incoming and outgoing calls as claimed in claim 7, wherein: when the air inlets are communicated with the air pipes B (29), the air inlets (28) are connected with the two air pipes B (29) through three-way connecting pipes (30).
Priority Applications (1)
| 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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| CN111437530B true 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111097112B (en) * | 2020-02-16 | 2021-03-16 | 重庆万州三峡外科医院有限公司 | Closed type isolation protective clothing respiration support system and use method thereof |
| CN112891769A (en) * | 2021-02-10 | 2021-06-04 | 于从军 | Atmospheric particulate isolation device, isolation kit and method |
| JP7121877B1 (en) * | 2022-03-02 | 2022-08-18 | 和典 酒井 | mask aid |
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