CN213642883U

CN213642883U - Respirator mask

Info

Publication number: CN213642883U
Application number: CN202021760947.XU
Authority: CN
Inventors: 宁安书
Original assignee: Chongqing Shimange Technology Co ltd
Current assignee: Chongqing Shimange Technology Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-07-09
Anticipated expiration: 2030-08-21

Abstract

The utility model provides a respirator mask, which comprises an outer cover and an oronasal mask arranged in the outer cover, wherein the oronasal mask is provided with a one-way valve I and a one-way valve II, and the one-way valve I is used for realizing the flow of fresh air from the outside of the oronasal mask to the inside of the oronasal mask; the mouth-nose mask is also provided with a check valve III which is used for controlling the air exhaled by the user at each time to flow from the inside of the mouth-nose mask to the air storage chamber of the respirator supply valve, and the check valve II is used for controlling the air exhaled by the user at each time to flow from the inside of the mouth-nose mask to the atmospheric environment. The utility model discloses can realize separating the gas of the just exhalation of user, still have convenient breathing, advantages such as the gas flow is even, the travelling comfort is good among the respiratory process.

Description

Respirator mask

Technical Field

The utility model relates to a respirator, concretely relates to respirator face guard.

Background

The existing common respirator mask mainly comprises an outer cover and an oral-nasal mask arranged in the outer cover, wherein two groups of one-way valves are arranged on the oral-nasal mask, one group of one-way valves are used for realizing that air flows from the outside of the oral-nasal mask to the inside of the oral-nasal mask, namely fresh air at the outlet of a valve core is introduced into the oral-nasal mask, and the other group of one-way valves are used for exhausting gas exhaled by a user in the oral-nasal mask to the atmospheric environment. For example: document CN208660176U provides a novel water mist removing type air respirator mask, which comprises a face screen, a belt, a nose mask, a scraping mechanism, a driving mechanism and a coupler, wherein the rear end of the face screen is provided with the belt, the inside of the face screen is provided with the nose mask, one end of the nose mask facing to the outside is provided with a breather valve, the breather valve comprises an exhalation valve and two inhalation valves, and the two inhalation valves are arranged on two symmetrical sides of the exhalation valve.

The research finds that: in each breathing process of a human body, when the human body inhales, firstly inhaled gas enters the lung to exchange gas, then the inhaled gas is stored in the trachea and/or the oral cavity, and the gas stored in the trachea and/or the oral cavity is still equivalent to fresh air and can be recycled; when the patient exhales, the first exhalation is the gas inhaled and stored in the trachea and/or the oral cavity, and the second exhalation is the gas inhaled and exchanged before (the carbon dioxide content of the part of gas is high and cannot be reused). Therefore, it is necessary to separate the two gases during each exhalation of the human body. However, none of the existing respirator masks provide for separation of the gases just exhaled by the user.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a respirator face guard for the realization separates the gas of the user just expired.

In order to achieve the above purpose, the present invention adopts the following technical solution.

A respirator mask comprises an outer cover and an oral-nasal mask arranged in the outer cover, wherein the oral-nasal mask is provided with a one-way valve I and a one-way valve II, and the one-way valve I is used for realizing the flow of fresh air from the outside of the oral-nasal mask to the inside of the oral-nasal mask; the method is characterized in that: the mouth-nose mask is also provided with a check valve III which is used for controlling the air exhaled by the user at each time to flow from the inside of the mouth-nose mask to the air storage chamber of the respirator supply valve, and the check valve II is used for controlling the air exhaled by the user at each time to flow from the inside of the mouth-nose mask to the atmospheric environment.

Preferably, in the inspiration state, the air passage of the one-way valve I, the space between the valve core of the respirator and the respirator supply valve shell and the space between the outer cover and the oronasal mask are used as a passage for the stored air in the air storage chamber to flow back to the oronasal mask. The air passage of the first check valve refers to a space through which air flows through the first check valve after the first check valve is opened.

Preferably, in the exhalation state, the air passage of the one-way valve III and the space between the valve core of the respirator and the respirator supply valve shell are used as passages for the gas exhaled by the user to flow to the air storage chamber. The air passage of the check valve III is a space through which the air flows through the check valve III after the check valve III is opened.

In order to better separate the gas just exhaled by the user, a baffle part is arranged in the oronasal mask, and a one-way valve III is arranged on the baffle part.

In order to better inhale air, the lower part of the valve core of the respirator extends into the oral-nasal mask, and the air outlet of the valve core is directly communicated with the space of the oral-nasal part of a user, or: the valve core is wholly positioned above the oronasal mask.

More preferably, the lower part of the valve core of the respirator is fixed on the baffle part.

In order to make the breathing of the user more uniform, a separation net is arranged in the oronasal mask and is positioned below the valve core of the respirator.

Furthermore, a plurality of independent check valves III are uniformly arranged on the blocking part, or annular check valves are arranged around the valve core.

In order to improve the breathing comfort, the central axis of the shell, the central axis of the valve core and the central line of the mask are intersected or basically intersected at the same point of the same plane, and the shell adopts a concentric structure.

Preferably, the check valve comprises a through hole arranged on the blocking part and a diaphragm, and the diaphragm is positioned on the upper wall of the blocking part.

Has the advantages that: due to the adoption of the technical scheme, the gas just exhaled by the user can be separated, in the using process, the gas exhaled first by the user each time (the gas inhaled by the user for the previous time and stored in the trachea and/or the oral cavity of the user) flows to the gas storage cavity through the one-way valve three times, and the gas exhaled later each time (the gas inhaled by the user for the previous time and subjected to gas exchange through the lung) is exhausted to the atmospheric environment through the one-way valve two times; adopt the utility model provides a respirator face guard still has the convenient breathing, and the air current is even, travelling comfort advantage such as good in the respiratory process.

Drawings

FIG. 1 is a first schematic view of an exemplary respirator mask;

FIG. 2 is a schematic illustration of a respirator mask of an embodiment II;

FIG. 3 is a schematic view of a third embodiment of a respirator mask showing a one-way valve;

FIG. 4 is a schematic view of a one-way valve III of the respirator mask of the present embodiments;

FIG. 5 is a schematic view of another one-way valve III of the respirator mask of the present embodiments;

FIG. 6 is a schematic view of another one-way valve III of the respirator mask of the present embodiments.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the following description of the embodiments is only for the purpose of helping understanding the principle and the core idea of the present invention, and is not intended to limit the scope of the present invention. It should be noted that modifications to the present invention may occur to those skilled in the art without departing from the principles of the present invention and are intended to fall within the scope of the appended claims.

Examples

Referring to fig. 1 and 2, the respirator mask comprises an outer cover 8 and an oronasal mask 9 arranged in the outer cover 8, wherein a one-way valve 91 and a one-way valve II 92 are arranged on the oronasal mask 9, and the one-way valve 91 is used for realizing the flow of fresh air from the outside of the oronasal mask 9 to the inside of the oronasal mask 9; the oronasal mask 9 is also provided with a one-way valve III 93, the one-way valve III 93 is used for controlling the gas exhaled by the user in each time to flow from the oronasal mask 9 to the gas storage chamber of the respirator supply valve, and the one-way valve II 92 is used for controlling the gas exhaled by the user in each time to flow from the oronasal mask 9 to the atmospheric environment. In the inspiration state, the air passage of the one-way valve I91, the space between the valve core 5 of the respirator and the respirator supply valve shell 1 and the space between the outer cover 8 and the oronasal mask 9 are used as a channel for the stored air in the air storage chamber to flow back to the oronasal mask 9; in the exhalation state, the air passage of the one-way valve III 93 and the space between the valve core 5 of the respirator and the respirator supply valve shell 1 are used as passages for the gas exhaled by the user to flow to the gas storage chamber.

In one embodiment: an inner cavity of a gas storage component 2 arranged in the shell 1 is used as a gas storage cavity, and the gas storage component 2 is connected with the valve core 5 through a valve core actuating mechanism 100 and controls the valve core 5 to be opened; the central axis of the shell 1 and the central axis of the valve core 5 intersect or substantially intersect at the same point of the same plane, and the shell 1 adopts a concentric structure; a blocking part 94 is arranged in the oronasal mask 9, the lower part of a valve core 5 of the respirator is fixed on the blocking part 94, a one-way valve III 93 is arranged on the blocking part 94, the lower part of the valve core 5 of the respirator extends into the oronasal mask 9, and an air outlet of the valve core 5 is directly communicated with the space where the mouth and the nose of a user are located; as shown in fig. 3 and 4, a plurality of independent check valves three 93 (only four check valves three 93 are schematically shown in the drawing, but the number of the check valves three is not limited to four) are uniformly arranged on the blocking portion 94, and all the check valves three 93 are arranged around the valve core 5; the third check valve 93 includes a through hole 931 provided in the blocking portion 94 and a diaphragm 932, and the diaphragm 932 is located on an upper wall of the blocking portion 94.

In another embodiment: a separation net 95 is also arranged in the oronasal mask 9, the separation net 95 is positioned below the valve core 5 of the respirator, and the air outlet of the valve core 5 is positioned between the separation net 95 and the blocking part 94; as shown in fig. 3 and 5, an annular check valve is disposed around the valve body 5, the check valve three 93 includes a through hole 931 provided on the blocking portion 94 and a diaphragm 932, the through hole 931 is an annular hole, the diaphragm 932 is an annular diaphragm, and the diaphragm 932 is located on the upper wall of the blocking portion 94.

In another embodiment: referring to fig. 6, the structure differs from that of fig. 1 mainly in that: the air outlet of the valve core 5 is positioned in the shell 1, the check valve III 93 is arranged on the blocking part, the blocking part is arranged in the oronasal mask 9, the inhaled air 123 enters the oronasal mask 9 through the check valve I91 in the air suction process, and the exhaled air 121 enters the air storage chamber through the check valve III 93.

For the respirator mask in this example: in a specific product, an air storage chamber arranged in a shell 1 is communicated with an inner cavity of an oronasal mask 9 of a respirator, a critical value for opening a check valve III 93 is lower than a critical value for opening a check valve II 92, and the critical value for opening the diaphragm type check valve can be designed according to the thickness of a diaphragm; when the user does not exhale, the air storage chamber is separated from the inner cavity of the oronasal mask 9 through the three check valves 93, and when the user exhales, the membrane 932 is pushed open by the pressure of the exhaled air, so that the exhaled air enters the air storage chamber; when the pressure of the air in the air storage chamber reaches a certain amount, the pressure in the oronasal mask 9 continues to increase along with the continuous expiration of the user, when the pressure reaches the critical value of the second check valve 92, the second check valve 92 is opened, and then the expired air of the user is exhausted to the atmosphere from the second check valve 92. Because the check valve that sets up, the gas in the gas storage chamber can not flow back to the oronasal mask 9 in through check valve three 93, and the gas in the gas storage chamber only can flow into the oronasal mask 9 in through check valve one 91, and gas among the atmospheric environment also can not flow back to the oronasal mask 9 in through check valve two 92. In each expiration process, the gas exhaled by the user firstly jacks the check valve III 93, the gas exhaled firstly enters the gas storage chamber, then jacks the check valve II 92, and the gas exhaled secondly enters the atmospheric environment, so that the two parts of gas are introduced into different areas.

In each expiration process, as shown by reference number 120 in fig. 1, a previous part of gas exhaled by the user (the part of gas belongs to gas which is temporarily stored in an air pipe and/or an oral cavity and does not enter the lung for gas exchange, and the gas components of the gas are almost the same as those of fresh air and can be reused) enters the gas storage chamber for storage, when the gas pressure in the gas storage chamber reaches a preset value, the second check valve 92 is opened, and then, a next part of gas exhaled by the user (the gas which enters the lung and has undergone gas exchange and has a higher carbon dioxide content in the part of gas) is exhausted to the atmosphere environment through the second check valve 92, and as shown by reference number 122 in fig. 2, the gas just exhaled by the user is separated in the expiration process.

Claims

1. A respirator mask comprises an outer cover (8) and an oral-nasal mask (9) arranged in the outer cover (8), wherein a one-way valve I (91) and a one-way valve II (92) are arranged on the oral-nasal mask (9), and the one-way valve I (91) is used for realizing the flow of fresh air from the oral-nasal mask (9) to the oral-nasal mask (9); the method is characterized in that: the mouth-nose mask (9) is also provided with a one-way valve III (93), the one-way valve III (93) is used for controlling the gas exhaled by the user in each time to flow from the mouth-nose mask (9) to the gas storage chamber of the respirator supply valve, and the one-way valve II (92) is used for controlling the gas exhaled by the user in each time to flow from the mouth-nose mask (9) to the atmospheric environment.

2. A respirator mask according to claim 1, wherein: in the inspiration state, the air passage of the one-way valve I (91), the space between the valve core (5) of the respirator and the respirator supply valve shell (1), and the space between the outer cover (8) and the oral-nasal mask (9) are used as a passage for the stored air in the air storage chamber to flow back to the oral-nasal mask (9).

3. A respirator mask according to claim 2, wherein: in the exhalation state, the air passage of the one-way valve III (93) and the space between the valve core (5) of the respirator and the respirator supply valve shell (1) are used as passages for the gas exhaled by the user to flow to the gas storage chamber.

4. A respirator mask according to claim 1, 2 or 3, wherein: a baffle part (94) is arranged in the oronasal mask (9), and a three-way valve (93) is arranged on the baffle part (94).

5. A respirator mask according to claim 4, wherein: the lower part of a valve core (5) of the respirator extends into the oral-nasal mask (9), and an air outlet of the valve core (5) is directly communicated with the space of the mouth and the nose of a user, or: the valve core (5) is wholly positioned above the oronasal mask (9).

6. A respirator mask according to claim 5, wherein: the lower part of the valve core (5) of the respirator is fixed on the baffle part (94).

7. A respirator mask according to claim 6, wherein: a separation net (95) is arranged in the oronasal mask (9), and the separation net (95) is positioned below the valve core (5) of the respirator.

8. A respirator mask according to claim 5, 6 or 7, wherein: a plurality of independent check valves III (93) are uniformly arranged on the blocking part (94), or annular check valves are arranged around the valve core (5).

9. A respirator mask according to claim 4, wherein: a plurality of independent check valves III (93) are uniformly arranged on the blocking part (94), or annular check valves are arranged around the valve core (5).

10. A respirator mask according to claim 2, 3, 5, 6, 7, or 9, wherein: the central axis of the shell (1) and the central axis of the valve core (5) are intersected or basically intersected at the same point of the same plane, and the shell (1) adopts a concentric structure.

11. A respirator mask according to claim 4, wherein: the central axis of the shell (1) and the central axis of the valve core (5) are intersected or basically intersected at the same point of the same plane, and the shell (1) adopts a concentric structure.

12. A respirator mask according to claim 10, wherein: the check valve includes a through hole (931) provided in the barrier portion (94) and a diaphragm (932), and the diaphragm (932) is located on an upper wall of the barrier portion (94).