CN211068814U - Breather valve and mask - Google Patents

Breather valve and mask Download PDF

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Publication number
CN211068814U
CN211068814U CN201921439055.7U CN201921439055U CN211068814U CN 211068814 U CN211068814 U CN 211068814U CN 201921439055 U CN201921439055 U CN 201921439055U CN 211068814 U CN211068814 U CN 211068814U
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China
Prior art keywords
mask
breather valve
gas
filter
valve
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Expired - Fee Related
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CN201921439055.7U
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Chinese (zh)
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李伟
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Individual
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Individual
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Priority to CN201921439055.7U priority Critical patent/CN211068814U/en
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Publication of CN211068814U publication Critical patent/CN211068814U/en
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Abstract

The utility model provides a breather valve and gauze mask relates to health supplies technical field. The breather valve mainly comprises a seat body, a protection part and a cover body. The seat body, the protection part and the cover body are connected through the installation part, and the protection part can move between the seat body and the cover body along the installation part. The seat body, the protection part and the cover body are connected through the installation part, and the protection part can move between the seat body and the cover body along the installation part. One side of the cover body far away from the protection part is provided with a first filtering piece. The utility model discloses the mode that utilizes the first filter piece outside the lid filters the gas of exhalation, has avoided the influence of exhalation gas to the surrounding environment. The mask mainly comprises a mask body, a fixing part and the breather valve. The breather valve is installed in the gauze mask body, and the fixed part includes that first string detains the portion and the second hangs the portion of detaining, and first string detains the portion and the second hangs the both ends that detain the part and do not lie in the gauze mask body. The utility model discloses utilize foretell breather valve to come to filter the gas of user's exhalation, effectively solved the lower problem of user's exhalation gas cleanliness.

Description

Breather valve and mask
Technical Field
The utility model relates to a health supplies technical field particularly, relates to a breather valve and gauze mask.
Background
The mask is a sanitary product, and is generally worn at the mouth and nose part for filtering air entering the mouth and nose so as to achieve the purpose of preventing harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer, and filtering the air entering the lung, thereby effectively avoiding the infection probability of respiratory infectious diseases. However, the existing breather valve mask still has the problem of low cleanness of the exhaled air when in use.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a breather valve, it can filter the gas through the breather valve.
Another object of the utility model is to provide a mask, it can effectively solve the lower problem of expired gas cleanliness.
The embodiment of the utility model is realized like this:
a breather valve comprises a seat body, a protection part and a cover body. Pedestal, protection portion and lid pass through the installation department and link to each other, and the protection portion can be followed the installation department and removed between pedestal and lid, and one side that the protection portion was kept away from to the lid is provided with first filtration piece.
In some embodiments of the present invention, a buffer chamber is left between the first filter member and the cover.
In some embodiments of the present invention, the first filter member includes an elastic member.
In some embodiments of the present invention, a second filter is disposed on one side of the cover body close to the protection portion.
A mask comprises a mask body, a fixing part and the breathing valve. The breather valve is installed in the gauze mask body, and the fixed part includes that first string detains the portion and the second hangs the portion of detaining, and first string detains the portion and the second hangs the both ends that detain the part and do not lie in the gauze mask body.
In some embodiments of the present invention, the first hanging portion and the second hanging portion comprise elastic members.
In some embodiments of the present invention, the first hanging-buckling portion and the second hanging-buckling portion are both provided with an adjusting component. The first hanging and buckling part and the second hanging and buckling part penetrate through the adjusting assembly and are connected with the mask body.
In some embodiments of the present invention, the mask body is provided with a filter layer.
In some embodiments of the present invention, the mask body is provided with an air inlet valve.
In some embodiments of the utility model, the mask body is further provided with a nose pressing strip, and the nose pressing strip is located between the first hanging buckle part and the second hanging buckle part.
The embodiment of the utility model provides an at least, have following advantage or beneficial effect:
the utility model provides a breather valve, its simple structure can filter the gas through the breather valve. It mainly includes pedestal, guard portion and lid. The base body is mainly used for providing a mounting position for the breather valve. The protection part is mainly used for opening or closing the breather valve in cooperation with the seat body. The cover body is used for providing a moving space for the protection part. The seat body, the protection part and the cover body are connected through the installation part, and the protection part can move between the seat body and the cover body along the installation part. One side of the cover body far away from the protection part is provided with a first filtering piece. The working principle of the breather valve is as follows: during inspiration, the valve is closed to block fine particles and resist bacterial viruses; when exhaling, the valve is opened, which is convenient for discharging damp and hot gas in time. In the process of exhaling, exhaled gas is directly exhausted into the surrounding environment through the breather valve without being filtered, so that the surrounding environment is easily adversely affected. In particular, in places where a sterile environment is required (e.g., operating rooms in hospitals, laminar flow wards, food and drug processing environments, etc.), patients with respiratory infections, and the like, it is very necessary to filter exhaled air. The utility model discloses the mode that utilizes the first filter piece outside the lid filters the gas of exhalation, has effectively avoided the influence of exhalation gas to the surrounding environment.
The utility model also provides a gauze mask, its convenient to use, the cost is lower, has solved the lower problem of expired gas cleanliness effectively. It mainly includes gauze mask body, fixed part and foretell breather valve. The mask body is mainly used for providing a breathing space for a user; the fixed part is used for providing a fixed part for the mask body; the breather valve is mainly used for filtering exhaled air. The breather valve is installed in the gauze mask body, and the fixed part includes that first string detains the portion and the second hangs the portion of detaining, and first string detains the portion and the second hangs the both ends that detain the part and do not lie in the gauze mask body. The utility model discloses utilize foretell breather valve to come to filter the gas of user's exhalation, solved the lower problem of exhalation gas cleanliness effectively.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a breather valve provided in embodiment 1 of the present invention;
fig. 2 is an exploded schematic view of a seat body, a protection portion and a cover body provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a mask provided in embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of an adjusting assembly provided in embodiment 2 of the present invention.
Icon: 100-a breather valve; 110-a seat body; 112-a first vent; 114-a mounting portion; 120-a guard; 122-mounting holes; 130-a cover body; 132-a second vent; 140-a second filter element; 142-a buffer chamber; 200-mask; 210-a mask body; 212-nose strip; 220-a fixed part; 222-a first hook portion; 224-a second hook; 230-an adjustment assembly; 232-pressing part; 234-a via; 236-receiving hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when in use, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to which the description refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, "a plurality" means at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example 1
Referring to fig. 1, fig. 1 is a schematic structural diagram of a breather valve 100. The present embodiment provides a breather valve 100 that has a simple structure and is capable of filtering gas passing through the breather valve 100. The operating principle of the breather valve 100 is as follows: during inspiration, the valve is closed to block fine particles and resist bacterial viruses; when exhaling, the valve is opened, which is convenient for discharging damp and hot gas in time. In the existing breather valve, in the process of expiration, expired gas is directly exhausted into the ambient environment through the breather valve without being filtered, and the ambient environment is easily adversely affected. In particular, in places where a sterile environment is required (e.g., operating rooms in hospitals, laminar flow wards, food and drug processing environments, etc.), patients with respiratory infections, and the like, it is very necessary to filter exhaled air. The utility model provides a breather valve 100 can filter the gas of exhalation, has effectively avoided the influence of exhalation gas to surrounding environment.
The breather valve 100 mainly includes a seat body 110, a protection portion 120 and a cover body 130 connected in sequence. Referring to fig. 2, fig. 2 is an exploded view of the base 110, the protection part 120 and the cover 130. The seat 110 is primarily used to provide a mounting location for the breather valve 100. The guard 120 is mainly used to cooperate with the holder body 110 to open or close the breather valve 100. The cover 130 is used to provide a moving space with the guard 120.
The base 110 is provided with a plurality of first vents 112 at intervals, and the first vents 112 are used for assisting the breathing valve 100 to complete the flow of the gas inside and outside. In this embodiment, the number of the first ventilation holes 112 is 6, but in other embodiments, the number of the first ventilation holes 112 may be other, for example, 2, 3, 4, etc.
The base 110 is provided with a mounting portion 114, and the mounting portion 114 is located at the center of the base 110. In this embodiment, the mounting portion 114 and the base 110 are detachably connected by matching the internal thread and the external thread, so that the user can replace and check the protection portion 120 in time. Of course, in other embodiments, the mounting portion 114 and the seat body 110 may be fixedly connected or integrally formed.
The protection portion 120 is provided with a mounting hole 122 matching the mounting portion 114, and the mounting portion 114 is connected to the cover 130 through the mounting hole 122. The guard 120 is movable along the mounting portion 114 between the housing 110 and the cover 130. The shield 120 moves as follows: when the air is sucked, the protection part 120 is attached to the seat body 110 under the action of negative pressure, so that external pollutants are prevented from being sucked; during exhalation, the positive pressure of the exhaust gas blows the protection part 120 open to discharge the exhaled gas in time. The protection part 120 may be made of a silica gel material, and in other embodiments, the protection part 120 may also be made of activated carbon filter cotton, non-woven fabric filter cotton, or the like.
In this embodiment, the cover 130 and the base 110 are detachably connected by a screw thread, so that the user can conveniently check and timely replace the protection part 120 or the first filter, thereby prolonging the service life of the breather valve 100. Of course, in other embodiments, the cover 130 and the base 110 may be fixedly connected or integrally formed.
The cover 130 has a mounting groove matching with the mounting portion 114, and the mounting portion 114 passes through the mounting hole 122 of the protection portion 120 and is connected to the mounting groove. The mounting groove mainly serves as a limiting function, so that the protection part 120 can be kept moving between the seat body 110 and the cover body 130. The installation groove is formed to enable the protection part 120 to move more smoothly and stably between the seat body 110 and the cover body 130, and the practicability of the breather valve 100 is improved.
The cover 130 is further provided with second ventilation holes 132 at intervals. In this embodiment, the number of the second ventilation holes 132 is 3, but in other embodiments, the number of the second ventilation holes 132 may be other numbers, such as 2, 4, 5, and the like. Further, in order to make the user more comfortable when using, the second air hole 132 is disposed below the cover 130 and has a certain inclination angle, so that the user is prevented from forming water mist due to upward flowing of air when exhaling, and the user experience and comfort are reduced.
In other embodiments, the cover 130 may further include a first filter element attached to the mounting portion 114 on a side thereof adjacent to the protective portion 120, the first filter element being configured to filter the gas passing through the breather valve 100. The first filter member may be made of non-woven fabric, and of course, in other embodiments, an activated carbon filter layer, electrostatic filter cotton, etc. may be used. As long as first filter selects suitably, first filter can filter the inhaled air of user, avoids dust, tiny particle etc. that carry in the inhaled air untreated through first bleeder vent 112 entering breather valve 100, has improved breather valve 100's security. Of course, in other embodiments, the first filter element may not be provided, or a sealing element may be provided between the seat body 110 and the protection portion 120 to improve the sealing performance of the breathing valve 100 during inhalation, so as to prevent gas from passing through the breathing valve 100.
The cover 130 is provided with a second filter 140 on a side away from the protective part 120. The second filter member 140 is mainly used to filter harmful substances, such as spray, pathogenic microorganisms, etc., passing through the breather valve 100. When the existing breather valve in the market is used, the inhaled air is generally only filtered, so that the harm of the inhaled air to human health is reduced, and the droplets or pathogenic microorganisms in the exhaled air cannot be effectively filtered, so that the influence on the surrounding environment is easily caused. Particularly, in some places with high requirements on sterile environment (such as operating rooms of hospitals, laminar flow wards, food and drug processing environments and the like) and places for patients with respiratory diseases to come in and go out, the filtration of the exhaled air is necessary. In this embodiment, the second filter 140 is circumferentially disposed on the outer surface of the cover 130 to filter the droplets and pathogenic microorganisms in the exhaled air, thereby reducing the influence of the exhaled air on the surrounding environment. The second filter 140 may be made of a material having a filtering function, such as activated carbon filter cotton, electrostatic filter cotton, dust-proof cotton, non-woven fabric, etc., according to the actual situation of the user. Further, the second filter element 140 may include a resilient element, which refers to a material having a certain stretching and elastic retractive force, such as rubber, sponge, soft plastic, etc., but not affecting the filtering effect of the exhalation valve 100 on the exhaled air.
As shown in fig. 1, a buffer cavity 142 is reserved between the second filter element 140 and the cover 130, and the buffer cavity 142 is mainly used for providing a temporary buffer space for the exhaled gas, so that the exhaled gas can be better discharged, the gas is prevented from staying in breathing masks such as masks, face masks and nose masks, and the user experience and comfort are improved. When the user exhales, the gas is temporarily stored in the buffer chamber 142 and gradually exhausted to the surrounding environment through the second filter element 140, so as to avoid the adverse effect of the exhaled gas on the surrounding environment. Of course, in other embodiments, the second filter element 140 may directly cover the outer surface of the cover 130, as long as the exhaled air can be filtered. In this embodiment, the second filter member 140 is made of a material with a certain stretching and elastic retraction force, so that a retraction pressure can be formed during retraction, thereby promoting the timely discharge of the gas in the buffer chamber 142 and improving the working efficiency of the breather valve 100. When a user inhales, the protection part 120 is attached to the seat body 110, the valve is closed, and external air cannot pass through the protection part; when the patient exhales, the protection portion 120 is attached to the cover 130, the valve is opened, the damp-heat air exhaled by the human body enters the buffer cavity 142 through the valve, the buffer cavity 142 is stretched and expanded due to the positive pressure of the air, and the air in the buffer cavity 142 is promoted to be gradually exhausted into the surrounding environment through the second filter member 140 under the elastic retraction force.
The operating principle of the breather valve 100 is:
the present embodiment provides a breather valve 100 that has a simple structure and is capable of filtering gas passing through the breather valve 100. The breather valve 100 mainly includes a seat body 110, a protection portion 120 and a cover body 130 connected in sequence. The seat 110 is primarily used to provide a mounting location for the breather valve 100. The guard 120 is mainly used to cooperate with the holder body 110 to open or close the breather valve 100. The cover 130 is used to provide a moving space with the guard 120. The base 110 is provided with a plurality of first vents 112 at intervals, and the first vents 112 are used for assisting the breathing valve 100 to complete the flow of the gas inside and outside. The base 110 is provided with a mounting portion 114, and the mounting portion 114 is located at the center of the base 110. The protection portion 120 is provided with a mounting groove matched with the mounting portion 114, and the mounting portion 114 penetrates through the mounting hole 122 on the protection portion 120 and is connected with the mounting groove. The protection portion 120 is provided with a mounting hole 122 matching the mounting portion 114, and the mounting portion 114 is connected to the cover 130 through the mounting hole 122. The cover 130 is further provided with second ventilation holes 132 at intervals. The cover 130 is provided with a second filter 140 on a side away from the protective part 120. The second filter member 140 is mainly used to filter harmful substances, such as droplets, pathogenic microorganisms, etc., exhaled through the breather valve 100. The second filter piece 140 and the cover body 130 are provided with a buffer cavity 142 therebetween, and the buffer cavity 142 is mainly used for providing a temporary buffer space for the exhaled gas, so that the exhaled gas can be better discharged, and the gas is prevented from staying in breathing masks such as masks, face masks and nose masks.
Example 2
Referring to fig. 3, fig. 3 is a schematic structural view of the mask 200. The embodiment provides a mask 200, which is convenient to use and low in cost, and effectively solves the problem of low cleanliness of the exhaled air of a breather valve mask. The existing mask filter layer increases the resistance of gas exhaust, blocks heat dissipation, causes water vapor and carbon dioxide retention, and easily causes discomfort such as dampness, heat, stuffiness and the like of a wearer. The breather valve is commonly used at present to improve the comfort level of the mask. When the traditional breather valve mask is used, exhaled gas is directly exhausted into the ambient environment through the breather valve without being filtered, and the ambient environment is easily affected. The utility model provides a gauze mask 200 utilizes foretell breather valve 100 to come to filter exhalation gas, has avoided the influence that exhalation gas produced the surrounding environment.
The mask 200 mainly includes a mask body 210, a fixing portion 220, and the breather valve 100. The mask body 210 is mainly used to provide a breathing space for a user; the fixing part 220 is used for providing a fixing part for the mask body 210; the breather valve 100 is mainly used to assist in ventilation and filtering of exhaled air inside and outside the mask 200.
The mask body 210 is provided with a filter layer, the filter layer is located in the mask body 210, and the filter layer can filter the gas entering the mouth and nose of the user through the mask body 210. In this embodiment, the filter layer adopts the active carbon filter layer, and the active carbon filter layer has strong adsorption efficiency, can effectively assist harmful particulate matters such as peculiar smell, dust in the filtration air. Of course, in other embodiments, electrostatic filter cloths, non-woven fabrics, meltblown fabrics, etc. may also be used. The material of the filter layer can be selected according to different using environments of users, so that microorganisms, dust, micro-particles and the like in the air can be filtered. In this embodiment, the filter layer is provided with two layers, but of course, in other embodiments, the filter layer may not be provided (i.e., in the case of no filter requirement for the inhaled gas), or one layer, three layers, four layers, etc. may be provided.
In other embodiments, the mask body 210 may further be provided with an air inlet valve (not shown), and the air inlet valve is an existing breather valve. The installation mode of the air inlet valve is opposite to that of the breathing valve of the mask on the market (namely, the air inlet valve is opened during inspiration, and the air inlet valve is closed during expiration). When a user inhales, negative pressure is formed in the mask body 210, the air inlet valve is opened, and air in the surrounding environment inhales; during expiration, positive pressure is formed in the mask body 210, the air inlet valve is closed, the expired air cannot pass through, and the expired air can be discharged into the surrounding environment through the breather valve 100. The setting of admission valve makes the resistance that the user received when breathing in less, and through the cooperation with breather valve 100, the smoothness and the comfort level of user's breathing have further been improved. In this embodiment, the number of the intake valves is set to 1, but in other embodiments, the number of the intake valves may be set to other numbers, for example, 2, 3, 4, and the like.
The mask body 210 is further provided with a nose pressing strip 212. The nose pressing strip 212 can be deformed arbitrarily according to the needs of the user so that the mask 200 is more attached to the face, the sealing performance of the mask 200 is improved, and the safety of breathing is guaranteed. In this embodiment, the nose pressing strip 212 is an aluminum strip, but in other embodiments, the nose pressing strip 212 may be made of other materials as long as the toughness can deform according to the needs of the user. Further, a flexible pad is further arranged on one side of the nose pressing strip 212 far away from the mask body 210, and the flexible pad can be made of sponge, cotton, foam and the like. The setting of flexible pad reduces the oppression sense of pressing nose strip 212 to the nose, makes the user more comfortable when wearing, has improved gauze mask 200's leakproofness simultaneously, can alleviate glasses surface fogging when exhaling effectively.
The fixing portion 220 includes a first hooking portion 222 and a second hooking portion 224, and the first hooking portion 222 and the second hooking portion 224 are located at two ends of the mask body 210. When the user uses the mask 200, the first and second hooking portions 222 and 224 are respectively located at both sides of the user's face. In this embodiment, when the user uses, first buckle portion 222 and second buckle portion 224 are all fixed at the ear, and of course, in other embodiments, first buckle portion 222 and second buckle portion 224 also can be fixed at user's head, avoid it to cause the injury to the ear when wearing, are more suitable for wearing for a long time, and have improved gauze mask 200's comfort level and leakproofness. The first hanging-buckling part 222 and the second hanging-buckling part 224 are made of elastic members, such as elastic non-woven fabric, elastic band, rubber band, and other materials with certain elastic deformation recovery capability, so that the user can fix the first hanging-buckling part 222 and the second hanging-buckling part 224 conveniently.
The first and second hooking portions 222 and 224 are each provided with an adjustment assembly 230. The first hook-fastening portion 222 and the second hook-fastening portion 224 are both connected to the mask body 210 through the adjusting assembly 230. Referring to fig. 4, fig. 4 is a schematic structural diagram of the adjusting assembly 230. The adjusting assembly 230 includes a pressing part 232, a through hole 234, and a spring (not shown in the drawings), and the pressing part 232 is used for pressing the spring to adjust the lengths of the first and second hooking parts 222 and 224. The pressing portion 232 is formed with a receiving hole 236 matching with the through hole 234, and the first hook portion 222 and the second hook portion 224 can pass through the through hole 234 and the receiving hole 236 to be connected to the mask body 210. When the user needs to adjust the lengths of the first hooking part 222 and the second hooking part 224, the user presses the pressing part 232, the spring is in a compressed state, the through hole 234 is overlapped with the accommodating hole 236, and at this time, the user can shorten or lengthen the lengths of the first hooking part 222 and the second hooking part 224 by pulling the first hooking part 222 and the second hooking part 224; after the adjustment is completed, the external force applied to the pressing portion 232 is removed, the spring compression state is released, the through hole 234 and the receiving hole 236 are displaced from each other, and the first hooking portion 222 and the second hooking portion 224 are fixed at the current length. The adjustment assembly 230 is convenient for the user to adjust the lengths of the first and second hook-and-loop portions 222 and 224 at will according to specific situations when the mask is used, thereby improving the flexibility of the mask 200.
The breather valve 100 is fixedly connected with the mask body 210 to improve the working efficiency of the breather valve 100. In this embodiment, there are 1 breathing valves 100, but in other embodiments, the number of breathing valves 100 may be other, for example, 2, 3, 4, etc. The breather valve 100 can be disposed at the corresponding position of the nose and mouth of the user on the mask 200, and of course, in other embodiments, the position of the breather valve 100 can be set according to the actual situation of the user, as long as the user can breathe more comfortably and the exhaled air can be filtered.
In this embodiment, please refer to the related description in embodiment 1, where not described in detail. In addition, in both embodiment 1 and embodiment 2, reference may be made to the structure of the existing breather valve and mask, where not described in detail with respect to the conventional arrangement.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a breather valve, its characterized in that, includes pedestal, protection portion and lid, the pedestal protection portion with the lid passes through the installation department and links to each other, protection portion can follow the installation department is in the pedestal with remove between the lid, the lid is kept away from one side of protection portion is provided with first filtration piece.
2. The respiratory valve of claim 1, wherein a buffer chamber is left between the first filter element and the cover.
3. The respiratory valve of claim 2, wherein the first filter element comprises an elastic element.
4. A valve according to claim 3, wherein the cover is provided with a second filter element on a side thereof adjacent the guard.
5. A mask, characterized by comprising a mask body, a fixing part and a breather valve according to any one of claims 1 to 4, wherein the breather valve is mounted on the mask body, the fixing part comprises a first hanging buckle part and a second hanging buckle part, and the first hanging buckle part and the second hanging buckle part are respectively positioned at two ends of the mask body.
6. The mask of claim 5 wherein said first and second hook portions comprise elastic members.
7. The mask of claim 6 wherein the first and second hook portions each have an adjustment assembly, and the first and second hook portions each extend through the adjustment assembly and are connected to the mask body.
8. The mask of claim 7 wherein said mask body is provided with a filter layer.
9. The mask of claim 7 wherein said mask body is provided with an air intake valve.
10. The mask of claim 9 wherein said mask body is further provided with a nose compression bar, said nose compression bar being located between said first hook and said second hook.
CN201921439055.7U 2019-08-29 2019-08-29 Breather valve and mask Expired - Fee Related CN211068814U (en)

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Application Number Priority Date Filing Date Title
CN201921439055.7U CN211068814U (en) 2019-08-29 2019-08-29 Breather valve and mask

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Application Number Priority Date Filing Date Title
CN201921439055.7U CN211068814U (en) 2019-08-29 2019-08-29 Breather valve and mask

Publications (1)

Publication Number Publication Date
CN211068814U true CN211068814U (en) 2020-07-24

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Application Number Title Priority Date Filing Date
CN201921439055.7U Expired - Fee Related CN211068814U (en) 2019-08-29 2019-08-29 Breather valve and mask

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110523014A (en) * 2019-08-29 2019-12-03 李伟 A kind of breather valve and mask

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110523014A (en) * 2019-08-29 2019-12-03 李伟 A kind of breather valve and mask

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