CN218474803U

CN218474803U - Protective mask

Info

Publication number: CN218474803U
Application number: CN202222603850.3U
Authority: CN
Inventors: 刘迅; 刘伟; 邓钢
Original assignee: Chengdu Shennongtang Industry Co ltd
Current assignee: Chengdu Shennongtang Industry Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-02-14
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to a respiratory protection utensil technical field, concretely relates to protective face mask, include: a mask body forming a mask-like structure covering at least the oronasal region; the plurality of air inlet structures comprise air suction valves arranged on the mask main body and air suction valve plates arranged at the air suction valves; the plurality of air outlet structures comprise exhalation valve ports arranged on the mask main body and exhalation valve plates arranged at the exhalation valve ports; the drainage expiration structure comprises a drainage expiration valve arranged at the lower part of the mask body and an expiration valve plate arranged at the drainage expiration valve. The utility model reduces the respiratory airflow resistance by adjusting the air inlet structure and the air outlet structure on the mask main body, so that the wearer can breathe more easily; and through downwards discharging the water that exhales the production, reduce the discomfort of wearer, more be favorable to making the wearer keep long-time operating condition, be favorable to the improvement of work efficiency.

Description

Protective mask

Technical Field

The utility model relates to a respiratory protection utensil technical field, concretely relates to protective face mask.

Background

Proper protective masks are required to be worn for operation in some special environments, and toxic and harmful substances in air are filtered, so that the breathing safety of workers is guaranteed. Most of the existing protective masks are generally provided with an air inlet structure and an air outlet structure, wherein the air inlet structure is closed and the air outlet structure is opened in the exhalation process; the air inlet structure is opened and the air outlet structure is closed in the inspiration process. Thereby form one-way gas flow channel, the guarantee gets into the gas in the protective face mask for the clean gas through filtration purification, avoid appearing a large amount of gas harm user's that is harmful to the human body healthy.

However, the existing protective mask generally has the current situation that the exhalation resistance is large and the inhalation resistance is large, the air tightness of the exhalation structure and the inhalation structure is poor, and the air leakage condition is easy to occur between breaths, so that the protective performance is reduced. Meanwhile, the exhaled air contains a large amount of moisture, which is condensed into water in the protective mask to affect the wearing comfort, resulting in discomfort for the wearer.

Therefore, a more reasonable technical scheme needs to be provided to solve the technical problems in the prior art.

SUMMERY OF THE UTILITY MODEL

At least for overcoming one of them kind of defect that above-mentioned content mentioned, the utility model provides a protective face mask through to the improvement of inlet structure with the structure of giving vent to anger, reduces the resistance of breathing in and exhaling, ensures barrier propterty simultaneously, can also outwards discharge the vapor in the expired gas, avoids the condensate water to cause the wearer uncomfortable.

In order to achieve the above object, the utility model discloses a protective mask can adopt the following technical scheme who provides:

a protective mask comprising:

a mask body forming a mask-like structure covering at least the oronasal region;

the plurality of air inlet structures comprise air suction valves arranged on the mask main body and air suction valve plates arranged at the air suction valves;

the plurality of air outlet structures comprise an exhalation valve port arranged on the mask main body and an exhalation valve plate arranged at the exhalation valve port;

the drainage expiration structure comprises a drainage expiration valve arranged at the lower part of the mask body and an expiration valve plate arranged at the drainage expiration valve.

According to the protective mask, air is sucked through the air inlet structure when the protective mask is worn, and air is discharged through the air outlet structure when the protective mask is exhaled, so that the exhalation resistance is reduced and discomfort of a wearer is avoided due to the fact that the number of the exhalation structures is increased; set up drainage expiration structure simultaneously, the condensate water that produces in breathing flows downwards and discharges at expiration in-process, avoids producing ponding in the face guard main part and leads to uncomfortable sense.

Further, the utility model discloses in, the inlet channel should be avoided as the inlet channel to the inspiratory valve, and the inspiratory effect is influenced to the vapor inflow inlet channel in the face guard main part, consequently need optimize the improvement to the structure of inlet valve, optimizes here and lifts one of them feasible selection: the inhalation valve extends from the exterior to the interior of the mask body and forms a flange on the interior of the mask body to prevent condensation from entering the inhalation valve. When adopting such scheme, the flange structure can avoid during water directly flows into air intake channel, and the water at flange department can drop to the lower most of face guard main part, exhales the structure through the drainage and discharges. Moreover, the air suction valve can be obliquely arranged, so that the external port of the air suction valve is higher than the internal port, and the effect of preventing water from entering can be achieved.

Further, the utility model discloses a protective face mask can cooperate other filtering component to use, and the air is entering into the valve of breathing in after filtering the piece processing earlier promptly, so can improve the clean degree of air. Therefore, it is necessary to optimize the structure of the suction valve, which is one of the possible options: the external port department of inspiratory valve be provided with connection structure, be convenient for connect parts such as air duct, filter element and outside air supply through connection structure. When adopting such scheme, connection structure can adopt arbitrary structures such as threaded connection structure, buckle structure, cutting ferrule structure.

Further, in the utility model discloses in, in order to avoid the condition that the gas leakage appears among the expiration process, optimize the structure of expiratory valve mouth department, specifically cite one of them feasible selection: and the outer ports of the expiration valve port and the drainage expiration valve are provided with expiration valve covers. When the scheme is adopted, the expiratory valve cover can protect the expiratory valve port and the expiratory valve piece at the drainage expiratory valve, and meanwhile, the expiratory valve cover can be disassembled and assembled from the outer end of the expiratory valve port or the inner end of the expiratory valve cover is disassembled and assembled or fixedly connected.

Still further, the structure of the exhalation valve cover is not limited solely, and various possible schemes can be adopted to achieve ventilation smoothness and reduce air leakage, and in particular, optimization is performed here to give an example of one of the possible options: the exhalation valve cover comprises a cover top and a cover side part which surrounds the cover top to form a circle, the cover side part is connected and sealed with the exhalation valve port and the drainage exhalation valve, and the cover top is provided with a ventilation structure. When the scheme is adopted, the cover top and the cover side are integrally formed, and the cover side is in threaded connection with the exhalation valve port or the drainage exhalation valve, and is in buckle connection or cutting sleeve connection.

Further, the utility model discloses in, expiration valve block can seal expiration valve port and drainage expiratory valve at the in-process of breathing in, opens expiration valve port and drainage expiratory valve at expiration in-process, and its deformation that can take place certain degree itself, the structure of expiration valve block is not only limited, optimizes and sets out one of them feasible selection here: the expiratory valve piece is an elastic piece, and the edge of the expiratory valve piece is tightly attached to the end face of the expiratory valve port and the end face of the drainage expiratory valve; or the edge of the expiration valve plate is bent and buckled inwards and is tightly attached to the end face of the expiration valve port and the end face of the drainage expiration valve. When the scheme is adopted, the exhalation valve plate can adopt a rubber sheet.

Further, the utility model discloses in, the suction valve can be opened at the in-process of breathing in to the suction valve, at expiration in-process shutoff suction valve, and its deformation that can take place certain degree itself, the structure of suction valve piece is not only limited, optimizes and lifts one of them feasible selection here: the air suction valve plate is an elastic plate, and the edge of the air suction valve plate is tightly attached to the end face of the air suction valve; or the edge of the air suction valve plate is bent and buckled inwards and is tightly attached to the end face of the air suction valve. When the scheme is adopted, the air suction valve plate can be made of rubber sheets.

Further, in order to improve the comfort level of wearing, the utility model discloses optimize the structure of face guard main part and lift one of them feasible selection: the edge of the mask main body is attached to the face, and a sealing contact structure is arranged at the edge of the mask main body. When adopting such scheme, sealed contact structure adopts the detachable mode to install, also can adopt integrated into one piece structure.

Still further, the utility model discloses in, for convenient the wearing, optimize the structure of face guard main part and propose following a feasible selection: the mask body is provided with a hanging structure to be matched and connected with a wearing rope. When the scheme is adopted, the hanging structure can adopt the hanging lugs which are respectively arranged on two sides of the mask main body.

Further, after wearing protective mask, the mask main part covers the mouth and nose, influences the speech communication, in order to improve the convenience of communicating, optimizes the mask main part and puts out one of them feasible selection: the mask main body is provided with a sound conduction structure. When the scheme is adopted, the sound conduction structure and the mask main body can be integrally formed, so that the thickness of the structure is reduced, and sound transmission is facilitated; or an additional connection structure is adopted, namely a sound amplifying structure is arranged on the mask main body, and the sound amplifying structure collects sound inside the mask main body and plays the sound outside the mask main body, so that the sound conduction effect is improved.

Compared with the prior art, the utility model discloses a technical scheme's part beneficial effect includes:

the utility model reduces the respiratory airflow resistance by adjusting the air inlet structure and the air outlet structure on the mask main body, so that the wearer can breathe more easily; and through downwards discharging the water that exhales the production, reduce the discomfort of wearer, more be favorable to making the wearer keep long-time operating condition, be favorable to the improvement of work efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show 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 these drawings without creative efforts.

Fig. 1 is a schematic structural view of a protective mask.

In the above drawings, the meaning of each symbol is:

1. a sealing contact structure; 2. an exhalation valve; 3. a hanging structure; 4. an air intake valve; 5. a mask body; 6. a drain exhalation valve; 7. an exhalation valve cover; 8. an exhalation valve plate; 9. an air suction valve plate.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

The breathing resistance is big for present protective mask, and expiration steam is held between fingers at the face guard and is gathered, influences the condition of wearing comfort level, and the defect that exists among the prior art is difficult to overcome to optimize the machine that changes to this embodiment.

Examples

As shown in fig. 1, the present embodiment provides a protective mask for improving the smoothness of breathing, discharging water generated by exhalation, improving the comfort of the wearer, and further maintaining the work efficiency.

As the protective mask disclosed in the present embodiment, one of the structures thereof includes:

the mask body 5 is formed into a mask-like structure covering at least the mouth and nose portions. In some possible embodiments, the mask body 5 may also be made to cover the entire face.

Preferably, in this embodiment, the mask body 5 can be made of rubber or plastic.

In the present embodiment, in order to improve wearing comfort, the structure of the mask body 5 is optimized and one of the possible options is adopted: the edge of the mask main body 5 is attached to the face, and a sealing contact structure 1 is arranged at the edge. When adopting such scheme, sealed contact structure 1 adopts the detachable mode to install, also can adopt integrated into one piece structure.

Preferably, adopt the silica gel strip as sealed contact structure 1 in this embodiment, the silica gel strip extends and forms the ring-type along the edge of face guard main part 5, and silica gel strip laminating face when wearing, the flexible contact not only reaches good leakproofness, also improves the comfort level of wearing.

In the present embodiment, the structure of the mask body 5 is optimized for wearing convenience and one of the following options is available: the mask body 5 is provided with a hanging structure 3 which is matched and connected with a wearing rope. When the scheme is adopted, the hanging structure 3 can adopt hanging lugs which are respectively arranged at two sides of the mask main body 5.

After wearing protective mask, mask main part 5 covers the department of mouth and nose, influences the speech communication, in order to improve the convenience of communicating, optimizes mask main part 5 and puts out one of them feasible selection: the mask body 5 is provided with a sound conduction structure. When the scheme is adopted, the sound conduction structure and the mask main body 5 can be integrally formed, so that the thickness of the structure is reduced, and sound transmission is facilitated; or an additional connection structure is adopted, namely a sound amplifying structure is arranged on the mask main body 5, sound is collected in the mask main body 5 and is played outside the mask main body 5, and therefore the sound conduction effect is improved

Preferably, the sound amplifying structure used in some aspects comprises a microphone. The sound pick-up of the loudspeaker is arranged in the mask body 5, the player is arranged outside the mask body 5, and the joint of the loudspeaker and the mask body 5 is sealed.

The second structure of the protective mask disclosed in this embodiment includes:

a plurality of air inlet structures, including setting up the inspiratory valve 4 on face guard main part 5 and setting up the inspiratory valve piece 9 in inspiratory valve 4 department.

In the present embodiment, the inhalation valve 4 is used as an air inlet channel, and it should be avoided that water vapor in the mask body 5 flows into the air inlet channel to affect the inhalation effect, so the structure of the inhalation valve 4 needs to be optimized and improved, and the present embodiment is optimized and adopts one of the feasible options: the inhalation valve 4 extends from the outside of the mask body 5 to the inside, and a flange is formed on the inside of the mask body 5 to prevent condensed water from entering the inhalation valve 4. When adopting such scheme, the flange structure can avoid water direct inflow to the air intake passage, and the water at the flange department can drop to the lower-most portion of face guard main part 5, exhales the structure through the drainage and discharges. Furthermore, in some possible embodiments, the air suction valve 4 may be arranged obliquely, so that the external port of the air suction valve 4 is higher than the internal port, and the effect of preventing water from entering can also be achieved.

The protective mask disclosed in this embodiment can be used with other filtering components, that is, the air enters the inhalation valve 4 after being treated by the filtering component, so that the cleanliness of the air can be improved. Therefore, the structure of the air suction valve 4 needs to be optimized, and the embodiment adopts one of the feasible options: and a connecting structure is arranged at the external port of the air suction valve 4.

Preferably, when adopting such scheme, connection structure can adopt arbitrary structures such as threaded connection structure, buckle structure, cutting ferrule structure.

Preferably, in this embodiment, the inhalation valve plate 9 can open the inhalation valve 4 during inhalation, and close the inhalation valve 4 during exhalation, and the inhalation valve plate itself can deform to some extent, and the structure of the inhalation valve plate 9 is not limited uniquely, and this embodiment is optimized and adopts one of the feasible options: the air suction valve plate 9 is an elastic plate, and the edge of the air suction valve plate is tightly attached to the end face of the air suction valve 4; or the edge of the suction valve plate 9 is bent and buckled inwards and is tightly attached to the end face of the suction valve 4. When the scheme is adopted, the air suction valve plate 9 can be made of rubber sheets.

As the protective mask disclosed in this embodiment, the third structure thereof includes:

and the air outlet structures comprise an exhalation valve 2 port arranged on the mask main body 5 and an exhalation valve sheet 8 arranged at the exhalation valve 2 port.

In this embodiment, in order to avoid air leakage during exhalation, the structure at the port of the exhalation valve 2 is optimized, and one of the feasible options is specifically adopted: and the outer ports of the expiratory valve 2 and the drainage expiratory valve 6 are provided with an expiratory valve cover 7. When the scheme is adopted, the exhalation valve cover 7 can protect the exhalation valve 2 port and the exhalation valve sheet 8 in the drainage exhalation valve 6.

Preferably, the mouth of the exhalation valve 2 and the drainage exhalation valve 6 are arranged in a circular shape, and the exhalation valve cover 7 is also a circular cover.

The structure of the exhalation valve cover 7 is not limited, and various possible schemes can be adopted to achieve smooth ventilation and reduce air leakage, and in particular, the present embodiment is optimized and adopts one of the possible options: the expiratory valve cover 7 comprises a cover top and a cover side part which surrounds the cover top to form a circle, the cover side part is connected and sealed with the expiratory valve 2 port and the drainage expiratory valve 6, and the cover top is provided with a ventilation structure. When the scheme is adopted, the top of the cover and the side part of the cover are integrally formed, and the side part of the cover is connected with the port of the expiratory valve 2 or the drainage expiratory valve 6 through threads, buckles or cutting sleeves.

Preferably, the exhalation valve cover 7 is made of plastic in the embodiment.

In this embodiment, the exhalation valve piece 8 can close the exhalation valve 2 and the drain exhalation valve 6 during inhalation, and open the exhalation valve 2 and the drain exhalation valve 6 during exhalation, and the exhalation valve piece itself may deform to some extent, and the structure of the exhalation valve piece 8 is not limited uniquely, and this embodiment is optimized and adopts one of the feasible options: the expiratory valve piece 8 is an elastic piece, and the edge of the expiratory valve piece is tightly attached to the end surface of the port of the expiratory valve 2 and the end surface of the drainage expiratory valve 6; or the edge of the expiration valve block 8 is bent and internally buckled and is tightly attached to the end surface of the port of the expiration valve 2 and the end surface of the drainage expiration valve 6. When such a scheme is adopted, the exhalation valve piece 8 can be a rubber piece.

The fourth structure of the protective mask disclosed in this embodiment includes:

the drainage exhalation structure comprises a drainage exhalation valve 6 arranged at the lower part of the mask main body 5 and an exhalation valve sheet 8 arranged in the drainage exhalation valve 6.

According to the protective mask, air is sucked through the air inlet structure when the protective mask is worn, air is discharged through the air outlet structure when the protective mask is exhaled, and due to the fact that the number of the exhalation structures is increased, resistance of exhalation is reduced, and discomfort of a wearer is avoided; meanwhile, a drainage expiration structure is arranged, condensed water generated in respiration flows downwards and is discharged in an expiration process, and discomfort caused by accumulated water generated in the mask main body 5 is avoided.

The above embodiments are just exemplified in the present embodiment, but the present embodiment is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining with each other according to the above embodiments, and any other various embodiments can be obtained by anyone in light of the present embodiment. The above detailed description should not be construed as limiting the scope of the present embodiments, which should be defined in the appended claims.

Claims

1. A protective mask, comprising:

a mask body (5) having a mask-like structure that covers at least the mouth and nose;

the plurality of air inlet structures comprise air suction valves (4) arranged on the mask main body (5) and air suction valve plates (9) arranged at the air suction valves (4);

the plurality of air outlet structures comprise an expiratory valve (2) opening arranged on the mask main body (5) and an expiratory valve piece (8) arranged at the expiratory valve (2) opening;

the drainage expiration structure comprises a drainage expiration valve (6) arranged at the lower part of the mask body (5) and an expiration valve sheet (8) arranged at the drainage expiration valve (6).

2. A face shield according to claim 1, wherein: the inhalation valve (4) extends from the outside to the inside of the mask body (5), and a flange is formed on the inside of the mask body (5) to prevent the condensed water from entering the inhalation valve (4).

3. A face shield according to claim 1 or 2, wherein: and a connecting structure is arranged at the external port of the air suction valve (4).

4. A face shield according to claim 1, wherein: and the outer ports of the expiratory valve (2) and the drainage expiratory valve (6) are provided with an expiratory valve cover (7).

5. A face shield according to claim 4, wherein: the exhalation valve cover (7) comprises a cover top and cover side parts which surround the cover top for a circle, the cover side parts are connected and sealed with the exhalation valve (2) port and the drainage exhalation valve (6), and the cover top is provided with a ventilation structure.

6. A face shield according to claim 1, wherein: the expiratory valve sheet (8) is an elastic sheet, and the edge of the expiratory valve sheet is tightly attached to the end surface of the port of the expiratory valve (2) and the end surface of the drainage expiratory valve (6); or the edge of the expiration valve plate (8) is bent and internally buckled and is tightly attached to the end surface of the mouth of the expiration valve (2) and the end surface of the drainage expiration valve (6).

7. A face shield according to claim 1, wherein: the air suction valve plate (9) is an elastic plate, and the edge of the elastic plate is tightly attached to the end face of the air suction valve (4); or the edge of the air suction valve plate (9) is bent and buckled inwards and is tightly attached to the end face of the air suction valve (4).

8. A face shield according to claim 1, wherein: the edge of the mask main body (5) is attached to the face, and a sealing contact structure (1) is arranged at the edge.

9. A face shield according to claim 1 or 8, wherein: the mask main body (5) is provided with a hanging structure (3) which is connected with a wearing rope in a matching way.

10. A face shield according to claim 1, wherein: the mask main body (5) is provided with a sound conduction structure.