CN114073830B - Using method of air respirator - Google Patents
Using method of air respirator Download PDFInfo
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- CN114073830B CN114073830B CN202010847698.6A CN202010847698A CN114073830B CN 114073830 B CN114073830 B CN 114073830B CN 202010847698 A CN202010847698 A CN 202010847698A CN 114073830 B CN114073830 B CN 114073830B
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- respirator
- gas
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/12—Respiratory apparatus with fresh-air hose
-
- 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
-
- 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
- A62B9/022—Breathing demand regulators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention provides a use method of an air respirator, which comprises the following steps: the user wears the air respirator; in the expiration process, introducing the gas exhaled by the user into the gas storage cavity for storage, and discharging the gas exhaled by the user to the atmosphere; the gas exhaled firstly is gas inhaled by a user last time and stored in the trachea and/or the oral cavity of the user, and the gas exhaled later is gas inhaled by the user last time and exchanged through the lung of the user; during inspiration, the air which is exhaled by the user last time and stored in the air storage cavity is inhaled into the lung for reuse. After the scheme of the invention is adopted, the effective use time of the existing common air supply bottle filled with fresh air can be prolonged, and the comfort in the use process is good.
Description
Technical Field
The invention relates to a use method of an air respirator.
Background
Currently, the air respirator commonly used in the market mainly comprises a product disclosed in a document CN202289250U or a similar product thereof, the air respirator comprises a shell, a valve core and a valve core actuating mechanism are arranged in the shell, an air supply pipe is communicated with the valve core, an opening and a nose cover is communicated with the lower part of the valve core, the opening and nose cover is positioned in an outer cover, the air supply pipe is externally connected with an air supply bottle, the valve core actuating mechanism is used for driving a piston of the valve core to move downwards so as to realize air supply for a user, the piston of the valve core resets under the action of a spring after the air supply is finished so as to realize air supply stop, and an exhaust valve is further arranged on the shell and used for exhausting air exhaled by the user to the atmosphere.
Although the existing air respirator and the air supply valve thereof can realize the air supply function, the existing air respirator has the following problems:
(1) The maximum utilization of the fresh air in the air supply bottle cannot be realized, the service time of the air supply bottle (the effective service time of a single common/standard air supply bottle after being filled with the fresh air) is short, and the existing common (standard) air supply bottle can only be used for about 30 minutes after being filled with the fresh air under the condition of high-intensity labor operation;
(2) The comfort is poor in the use process, and particularly when a user (such as a firefighter) wears the respirator to extinguish a fire, the situation of unsmooth breathing and even hypoxia is very easy to occur;
(3) In the use process, the condition of difficult air supply is easy to occur.
Disclosure of Invention
The invention aims to provide a use method of an air respirator capable of realizing maximum utilization of fresh air.
In order to achieve the above object, the present invention adopts the following technical scheme.
A method of using an air respirator, comprising the steps of:
step 1, a user wears an air respirator;
step 2, in the expiration process, introducing the gas exhaled by the user each time into the gas storage chamber for storage, and discharging the gas exhaled by the user each time to the atmosphere; the gas exhaled firstly is gas inhaled by a user last time and stored in the trachea and/or the oral cavity of the user, and the gas exhaled later is gas inhaled by the user last time and exchanged through the lung of the user;
and 3, in the inspiration process, the air which is expired last time by the user and stored in the air storage chamber is inhaled into the lung for reuse.
In the preferred scheme, during the inspiration process, the gas which is exhaled by a user and stored in the gas storage cavity at the last time is firstly introduced into the lungs of the user for recycling, and then the fresh air in the gas storage bottle is introduced into the lungs, the gas pipes and the oral cavity of the user; or: during inhalation, the air exhaled by the user last time and stored in the air storage chamber and the fresh air in the air storage bottle are simultaneously introduced into the lungs, the air tube and the oral cavity of the user.
As a preferable scheme, the adopted air respirator comprises an air supply valve, wherein the air supply valve is connected with an outer cover, and an oral-nasal mask is arranged in the outer cover; the air respirator is provided with a one-way channel A for introducing air in the air storage bottle into the nose mask; the air respirator also has:
a channel B for introducing the gas exhaled by the user each time into the gas storage chamber of the gas storage component for storage;
a unidirectional passage C for exhausting the exhaled air of the user to the atmosphere after each time;
and a channel D for introducing the gas last exhaled by the user and stored in the gas storage chamber into the inlet nasal mask.
More preferably, the channel B and the channel D are the same channel; the second check valve is arranged on the nose-mouth cover and is used for controlling the opening and closing of the check channel C, and when the gas pressure in the gas storage cavity reaches a preset value, the second check valve is opened.
More preferably, the channels B and D are two unidirectional channels.
As a more preferable scheme, a first check valve, a second check valve and a third check valve are arranged on the mouth-nose cover, the first check valve is used for controlling the opening and closing of the check channel D, the second check valve is used for controlling the opening and closing of the check channel C, and the third check valve is used for controlling the opening and closing of the check channel B; in the expiration process, when the gas pressure in the gas storage cavity reaches a preset value, the second check valve is opened.
Further, the air supply valve comprises a shell, an air inlet pipe is arranged on the shell, a valve core and a valve core actuating mechanism are arranged in the shell, and the valve core is arranged along the central axis of the shell. The structure overturns the traditional structural design thought (the existing product is either an eccentric structure formed by arranging the shell or the valve core by the side, and only one of the two can be considered), so that the structure of basically coaxial or coaxial arrangement of the valve core and the shell is realized, namely, the valve core by the side is not needed, and the shell is not needed to be arranged into an eccentric structure, so that a user can wear the respirator conveniently, adjust the position or state of the respirator conveniently, disassemble the respirator conveniently, ensure the breathing smoothness of the user, and avoid the problem of uneven breathing even under the condition of shortness of breath of the user.
Further, the central axis of the shell, the central axis of the valve core and the central axis of the oral-nasal mask are intersected or basically intersected at the same point of the same plane, and the shell adopts a concentric structure.
In order to prevent the situation of difficult air supply in the using process, a three-level lever transmission assembly or more than three-level lever transmission assemblies are adopted as the valve core actuating mechanism, and the valve core actuating mechanism is pressed down through the air storage part to realize valve core opening. Theoretically, the greater the number of lever stages, the less difficult it is to open the valve element by inhalation without increasing the space occupied by the valve element actuating mechanism.
Preferably, an elastic air bag, a telescopic air bag or a piston assembly is adopted as the air storage component.
In order to further improve the breathing comfort, the air outlet of the valve core is positioned in the mouth-nose cover so as to realize that the air in the air storage bottle can be directly introduced into the mouth-nose cover.
According to a specific embodiment of the invention, the three-stage lever transmission assembly comprises a first lever, a second lever and a third lever which are respectively hinged on the respirator, wherein the first lever, the second lever and the third lever are sequentially connected in a transmission way, a power arm of the first lever acts on an air suction valve plate of the respirator, and the third lever acts on a piston of the valve core.
For convenient disassembly and convenient control of the air intake, the valve core comprises a separable valve core upper body and a valve core lower body, and the valve core upper body is rotationally connected with the valve core lower body; the bottom of the lower body of the valve core is provided with an air flow regulating switch.
According to one embodiment of the invention, the valve core is located entirely above the oral nasal mask.
In order to prevent fogging in the mask and to facilitate the user's rapid wakefulness in case of tiredness, the air respirator further comprises a flushing valve, the switch of which is located at the side wall of the housing. When a user is tired or drowsy or the mask is fogged, the fresh air can be quickly filled into the mask to prevent the fogging only by opening the flushing valve, and meanwhile, the user can be quickly awake.
The air respirator provided by the invention has the following beneficial effects:
(1) During the expiration process, the gas just expired by the user can be separated, the gas expired by the user (the gas inhaled by the user for the previous time and stored in the trachea and/or the oral cavity of the human body) flows into the gas storage cavity through the channel B for temporary storage, and the gas expired by the user (the gas inhaled by the user for the previous time and exchanged by the lung gas) is exhausted to the atmosphere through the unidirectional channel C; in the air suction process, the gas temporarily stored in the gas storage cavity can be sucked into the lung again by means of the channel B for utilization, so that gas waste can be avoided, the maximum utilization of fresh air is realized, and the service time of the gas storage bottle is prolonged; after the scheme of the invention is adopted, under the condition of high-intensity labor operation, the effective use time of the existing common (standard) air supply bottle filled with fresh air can be prolonged to 40 minutes or even longer.
(2) In the use process, the air which accords with the lung air exchange can be ensured to be firstly in the lung when each inhalation is performed, but not the air with higher carbon dioxide content which remains in the respirator supply valve, so that the comfort in the breathing process is improved;
(3) The traditional structural design thought is overturned, and the structure of basically coaxial or coaxial arrangement of the valve core and the shell is realized, namely, the valve core is not required to be arranged close to the edge, and the shell is not required to be arranged to be in an eccentric structure, so that a user can wear the respirator conveniently, adjust the position or state of the respirator conveniently, disassemble and assemble the respirator conveniently, the smoothness and comfortableness of breathing of the user can be ensured, and even when the user (such as a firefighter) wears the respirator to extinguish a fire, the condition of uneven breathing and hypoxia can not occur;
(4) The valve core opening device has the advantages that the comfort and uniformity of the air suction process can be guaranteed in a smaller shell space, the small opening difficulty of the valve core is guaranteed under the condition that the space occupied by the lever assembly is not increased, the effects of air suction labor saving and small respiratory resistance are achieved, and the condition of difficult air supply can not occur.
Drawings
FIG. 1 is a schematic diagram of an air respirator of example 1 (primary inhalation state);
FIG. 2 is a schematic diagram of an air respirator in example 1, two (exhalation state);
FIG. 3 is a schematic representation of an air respirator III (exhalation state) in example 1;
FIG. 4 is a schematic diagram of an air breathing apparatus of example 1, four (second inhalation state);
FIG. 5 is a schematic view of the valve core actuation mechanism of the air respirator of example 1;
FIG. 6 is a schematic illustration of a gas storage component of the air respirator of example 1;
FIG. 7 is a schematic diagram of a gas storage component of the air respirator of example 1;
FIG. 8 is a schematic illustration of a valve cartridge for an air respirator of example 1;
FIG. 9 is a schematic illustration of a third check valve of the air respirator of example 1;
FIG. 10 is a schematic view of another one-way valve III of the air respirator of example 1;
FIG. 11 is a schematic diagram of an air respirator of example 2;
FIG. 12 is a schematic diagram of a second embodiment of the air respirator of example 2;
FIG. 13 is a schematic view of an air respirator of example 4;
the direction of the arrows in each figure indicates the corresponding gas flow direction.
Detailed Description
The following embodiments are further described in conjunction with the present invention and are not to be construed as limiting the scope of the invention, as many insubstantial modifications and variations are possible within the scope of the invention as would be apparent to one of ordinary skill in the art in light of the claims.
Example 1
A method of using an air respirator, the steps comprising:
step 1, a user wears an air respirator;
step 2, in the expiration process, introducing the gas exhaled by the user each time into the gas storage chamber for storage, and discharging the gas exhaled by the user each time to the atmosphere; the gas exhaled firstly is gas inhaled by a user last time and stored in the trachea and/or the oral cavity of the user, and the gas exhaled later is gas inhaled by the user last time and exchanged through the lung of the user;
and 3, in the inspiration process, the air which is expired last time by the user and stored in the air storage chamber is inhaled into the lung for reuse.
As one of the alternatives: in the inspiration process, the gas which is expired by the user and stored in the gas storage cavity is firstly introduced into the lung of the user for reuse, and then the fresh air in the gas storage bottle is introduced into the lung, the air pipe and the oral cavity of the user; as a second alternative: during inhalation, the air exhaled by the user last time and stored in the air storage chamber and the fresh air in the air storage bottle are simultaneously introduced into the lungs, the air tube and the oral cavity of the user.
Referring to fig. 1 to 4, the air respirator used comprises an air supply valve connected with a housing 8, and an oral-nasal mask 9 is arranged in the housing 8; the air respirator is provided with a one-way channel A for introducing air (shown as a number 123) in the air storage bottle into the inlet nose cover 9; the air respirator also has:
a channel B for introducing the gas (indicated by the number 121) exhaled by the user each time into the gas storage chamber of the gas storage part 2 for storage;
a one-way passage C for venting exhaled air (indicated by numeral 122) to the atmosphere after each user event;
and a channel D for introducing the gas (indicated by the number 120) which is exhaled by the user last time and stored in the gas storage chamber into the inlet nose cover 9, wherein the gas introduced into the inlet nose cover 9 enters the oral cavity, the trachea and the lungs along with the inhalation process of the human body.
In this embodiment, the channels B and D are two unidirectional channels, specifically: the mouth-nose mask 9 is provided with a first check valve 91, a second check valve 92 and a third check valve 93, wherein the first check valve 91 is used for controlling the opening and closing of the check channel D, the second check valve 92 is used for controlling the opening and closing of the check channel C, and the third check valve 93 is used for controlling the opening and closing of the check channel B; in the expiration process, after the gas pressure in the gas storage chamber reaches a preset value, the second check valve 92 is opened; in the inspiration state, 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 cover 9 are used as a channel D together mainly by the air passage of the one-way valve 91; in the exhalation state, the air passage of the check valve III 93 and the space between the valve core 5 of the respirator and the respirator supply valve shell 1 are used as a passage B together; the one-way channel A is mainly formed by a channel in the valve core 5 and the inner cavity of the air supply pipe 10.
As for the check valve three 93, a diaphragm type check valve may be adopted, the check valve three 93 is provided on the barrier portion 94, and referring to fig. 9, a plurality of independent check valves three 93 (only four check valves three 93 are schematically shown in fig. 9, but the number thereof should not be limited to four) may be uniformly provided on the barrier portion 94, and all the check valves three 93 are arranged around the spool 5; referring to fig. 10, an annular check valve may be disposed around the lower portion of the valve body 5, which includes a through hole 931 provided in the barrier portion 94 and a diaphragm 932, the through hole 931 being an annular hole, the diaphragm 932 being an annular diaphragm, the diaphragm 932 being located at the upper wall of the barrier portion 94.
In this embodiment, the air supply valve includes a housing 1, an air inlet pipe 10 is disposed on the housing 1, a valve core 5 and a valve core actuating mechanism 100 are disposed in the housing 1, the valve core 5 is disposed along a central axis of the housing 1, the central axis of the valve core 5 and the central axis of the oronasal mask 9 intersect or substantially intersect at the same point on the same plane, and the housing 1 adopts a concentric structure.
In this embodiment, a three-stage lever transmission assembly is used as the valve core actuating mechanism 100, and the valve core actuating mechanism 100 is pressed down by the air storage component 2 to realize the opening of the valve core 5.
Specifically, referring to fig. 1 and 5, the three-stage lever transmission assembly includes a first lever 301, a second lever 311 and a third lever 321, each of which is hinged to the respirator, the first lever 301 is hinged to the respirator through a first shaft 301, the second lever 311 is hinged to the respirator through a second shaft 313, the third lever 321 is hinged to the respirator through a third shaft 323, the first lever 301, the second lever 311 and the third lever 321 are sequentially connected in a transmission manner, a power arm of the first lever 301 acts on an air suction valve plate 4 of the respirator, and the third lever 321 acts on a piston 51 of the valve core 5; the first fulcrum 302 of the first lever 301 acts on the power arm of the second lever 311, the second fulcrum 312 of the second lever 311 acts on the power arm of the third lever 321, and the third fulcrum 322 of the third lever 321 acts on the piston 51 of the valve core 5; wherein, the hinge connection part of each lever is close to the fulcrum of the lever to which the hinge connection part belongs, the fulcrum one 302 of the first lever 301 acts on the tail part of the power arm of the second lever 311, and the fulcrum two 312 of the second lever 311 acts on the tail part of the power arm of the third lever 321; the inner side of the first lever 301 is provided with a protruding part serving as a first supporting point 302, and the lower end surface of the second lever 311 is also provided with a protruding part serving as a second supporting point 312; the power arm of the first lever 301 has an arc-shaped portion 304, wherein the convex surface of the arc-shaped portion 304 is used for abutting against the air suction valve plate 4, and in a preset rotation interval of the first lever 301, the convex surface of the arc-shaped portion 304 always abuts against the air suction valve plate 4 (in essence, in the rotation process of the first lever 301, the air suction valve plate 4 is always contacted through the convex surface of the arc-shaped portion 304); when the air suction valve plate 4 is acted by external force and the air suction valve plate 4 is moved downwards, the first lever 301 moves downwards and presses the second lever 311 downwards through the first pivot 302, the second lever 311 moves downwards after being pressed and presses the third lever 321 downwards through the second pivot 312, the third lever 321 moves downwards after being pressed and presses the piston 51 through the third pivot 322 so as to open the valve core 5, and after air supply of the valve core 5 is finished, the piston 51 is driven to reset through spring reset in the valve core 5.
In this embodiment, an elastic air bag, a telescopic air bag or a piston assembly is adopted as the air storage component 2, and the volume of the air storage chamber can be adaptively changed along with the change of the breathing gas quantity of the user, which is substantially as follows: when exhaling, part of the exhaled gas enters the gas storage cavity, and the volume of the gas storage cavity is increased; when inhaling, the gas in the gas storage chamber is inhaled into the lung by the user, and the volume of the gas storage chamber is reduced.
Specifically: referring to fig. 6, the telescopic airbag 22 is that the body 221 of the airbag has a telescopic function or the body 221 of the telescopic airbag 22 is of a folding telescopic structure, the top of the inner wall of the telescopic airbag 22 is provided with an air suction valve plate 4 or a diaphragm, the air suction valve plate 4 or the diaphragm is abutted against a driving lever of the valve core actuating mechanism 100, a spring 6 is arranged above the telescopic airbag 22, the upper end of the spring 6 is connected with a shell 1 of a supply valve, and the lower end of the spring 6 is connected with the top of the outer wall of the telescopic airbag 22; referring to fig. 7, the inner cavity of the cylinder 231 of the piston assembly 23 is used as a gas storage chamber, the piston 232 of the piston assembly 23 can move up and down along the inner wall of the cylinder 231, the lower wall of the piston 232 is abutted against the driving lever of the valve core actuating mechanism 100, a spring 6 is arranged above the piston 232, the upper end of the spring 6 is connected with the shell 1 of the supply valve, the lower end of the spring 6 is connected with the piston 232, and the volume of the gas storage chamber is increased and gas is stored by upward movement of the piston 232 during exhalation, and the piston 232 moves down during inhalation. In use, the retraction of the telescopic air bag 22 or the downward movement of the piston 232 helps to push the air in the air storage chamber into the oronasal mask 9 for inhalation by the user during the process of the reduced volume of the air storage chamber.
In the embodiment, the air outlet of the valve core 5 is positioned in the mouth-nose cover 9, so that the air in the air storage bottle can be directly introduced into the mouth-nose cover 9; the valve core 5 comprises a separable valve core upper body 52 and a valve core lower body 53, and the valve core upper body 52 is rotationally connected with the valve core lower body 53; an air flow regulating switch 54 is arranged at the bottom of the valve core lower body 53. Fig. 8 schematically provides an internal structure of the valve element 5, and of course, the valve element 5 may be a valve element in the document CN202052225U, a valve element in the document CN202289250U, or a valve element in the document 2928137Y, and it should be noted that: whichever valve core is adopted, the valve core needs to be arranged in the middle, and the valve core and the shell are basically coaxial or coaxially arranged.
In this embodiment, the air respirator further includes a purge valve 11, and a switch of the purge valve 11 is located on a side wall of the housing 1. When the user is tired or drowsy or the user is fogged in the mask, the fresh air can be quickly filled in the mask to prevent the fogging only by opening the flushing valve 11, and the user can be quickly awake.
Example 2
Referring to fig. 11 and 12, another air respirator that is used includes an air supply valve that is connected to a housing 8, and an oronasal mask 9 is provided in the housing 8; the air respirator is provided with a one-way channel A for introducing air (shown as a number 123) in the air storage bottle into the inlet nose cover 9; the air respirator also has: a channel B for introducing the gas (indicated by the number 121) exhaled by the user each time into the gas storage chamber of the gas storage part 2 for storage; a one-way passage C for venting exhaled air (indicated by numeral 122) to the atmosphere after each user event; and a channel D for introducing the gas (indicated by the number 120) last exhaled by the user and stored in the gas storage chamber into the inlet nasal mask 9.
In this embodiment, the main structure and core idea are as shown in embodiment 1, and the difference from embodiment 1 is that: the mouth-nose mask 9 is provided with a second check valve 92, the second check valve 92 is used for controlling the opening and closing of the check channel C, and when the gas pressure in the gas storage cavity reaches a preset value, the second check valve 92 is opened; the channel B and the channel D are the same channel, and the valve core 5 is integrally positioned above the mouth-nose mask 9.
Example 3
A method of using an air respirator, the steps comprising:
step 1, a user wears an air respirator;
step 2, in the expiration process, introducing the gas exhaled by the user each time into the gas storage chamber for storage, and discharging the gas exhaled by the user each time to the atmosphere; the gas exhaled firstly is gas inhaled by a user last time and stored in the trachea and/or the oral cavity of the user, and the gas exhaled later is gas inhaled by the user last time and exchanged through the lung of the user;
and 3, in the inspiration process, the air which is expired last time by the user and stored in the air storage chamber is inhaled into the lung for reuse.
In the embodiment, another air respirator comprises an air supply valve, wherein the air supply valve is connected with an outer cover, and an oral-nasal mask is arranged in the outer cover; the air respirator is provided with a one-way channel A for introducing air in the air storage bottle into the nose mask; the air respirator also has: a channel B for introducing the gas exhaled by the user each time into the gas storage chamber of the gas storage component for storage; a unidirectional passage C for exhausting the exhaled air of the user to the atmosphere after each time; and a channel D for introducing the gas last exhaled by the user and stored in the gas storage chamber into the inlet nasal mask.
In this embodiment, the air supply valve includes a housing, an air inlet pipe is provided on the housing, a valve core and a valve core actuating mechanism are provided in the housing, an air storage chamber is provided outside the housing, and the air storage chamber is communicated with an inner cavity of the oronasal mask through a pipeline channel.
Example 4
A method of using an air respirator, the steps comprising:
step 1, a user wears an air respirator;
step 2, in the expiration process, introducing the gas exhaled by the user each time into the gas storage chamber for storage, and discharging the gas exhaled by the user each time to the atmosphere; the gas exhaled firstly is gas inhaled by a user last time and stored in the trachea and/or the oral cavity of the user, and the gas exhaled later is gas inhaled by the user last time and exchanged through the lung of the user;
and 3, in the inspiration process, the air which is expired last time by the user and stored in the air storage chamber is inhaled into the lung for reuse.
In this embodiment, another air respirator is used, as shown in fig. 13, and the main difference between the structure of the air respirator and that of embodiment 1 is that: the air outlet of the valve core 5 is positioned in the shell 1, the third check valve 93 is arranged on the plate body, the plate body is arranged in the mouth-nose cover 9, and the air sucked in the air suction process enters the mouth-nose cover 9 through the first check valve 91.
Claims (3)
1. The using method of the air respirator is characterized in that the air respirator comprises an air supply valve, the air supply valve is connected with an outer cover (8), and an oral-nasal mask (9) is arranged in the outer cover (8); the mouth-nose mask (9) is provided with a first check valve (91), a second check valve (92) and a third check valve (93); the air supply valve comprises a shell (1), an air inlet pipe (10) is arranged on the shell (1), and a valve core (5) and a valve core actuating mechanism (100) are arranged in the shell (1); the central axis of the shell (1), the central axis of the valve core (5) and the central axis of the oral-nasal mask (9) are intersected at the same point of the same plane, and the shell (1) adopts a concentric structure;
the air respirator is provided with a one-way channel A for introducing the air in the air storage bottle into the nose mask (9); the air respirator also has:
the channel B is used for introducing the gas exhaled by the user each time into the gas storage cavity of the gas storage component (2) for storage;
a unidirectional passage C for exhausting the exhaled air of the user to the atmosphere after each time;
a channel D for introducing the gas last exhaled by the user and stored in the gas storage chamber into the inlet nasal mask (9); the channel B and the channel D are two unidirectional channels; the first check valve (91) is used for controlling the opening and closing of the check channel D, the second check valve (92) is used for controlling the opening and closing of the check channel C, and the third check valve (93) is used for controlling the opening and closing of the check channel B; in the expiration process, when the gas pressure in the gas storage cavity reaches a preset value, the second check valve (92) is opened; in the inspiration state, 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 taken as a channel D together through the air passage of the one-way valve I (91); in the exhalation state, the air passage of the check valve III (93) and the space between the valve core (5) of the respirator and the respirator supply valve shell (1) are used as a passage B together; the channel in the valve core (5) and the inner cavity of the air supply pipe (10) are used as a one-way channel A;
the check valve III (93) is a diaphragm type check valve, the check valve III (93) is arranged on the baffle part (94), a plurality of independent check valves III (93) are uniformly arranged on the baffle part (94), and all check valves III (93) are arranged around the valve core (5);
the three-level lever transmission assembly is adopted as the valve core actuating mechanism (100), and the valve core actuating mechanism (100) is pressed down by the gas storage component (2) to realize the opening of the valve core (5);
the three-stage lever transmission assembly comprises a first lever (301), a second lever (311) and a third lever (321) which are respectively hinged on the respirator, the first lever (301) is hinged on the respirator through a first shaft (303), the second lever (311) is hinged on the respirator through a second shaft (313), the third lever (321) is hinged on the respirator through a third shaft (323), the first lever (301), the second lever (311) and the third lever (321) are sequentially connected in a transmission manner, a power arm of the first lever (301) acts on an air suction valve plate (4) of the respirator, and the third lever (321) acts on a piston (51) of a valve core (5); the first fulcrum (302) of the first lever (301) acts on the power arm of the second lever (311), the second fulcrum (312) of the second lever (311) acts on the power arm of the third lever (321), and the third fulcrum (322) of the third lever (321) acts on the piston (51) of the valve core (5); wherein the hinge connection part of each lever is close to the fulcrum of the lever to which the hinge connection part belongs, the fulcrum one (302) of the first lever (301) acts on the tail part of the power arm of the second lever (311), and the fulcrum two (312) of the second lever (311) acts on the tail part of the power arm of the third lever (321); the inner side of the first lever (301) is provided with a bulge part serving as a first fulcrum (302), and the lower end surface of the second lever (311) is also provided with a bulge part serving as a second fulcrum (312); the power arm of the first lever (301) is provided with an arc-shaped part (304), the convex surface of the arc-shaped part (304) is used for being abutted against the air suction valve plate (4), and in a preset rotation interval of the first lever (301), the convex surface of the arc-shaped part (304) is always abutted against the air suction valve plate (4);
the telescopic air bag (22) is adopted as the air storage part (2), an air suction valve plate (4) is arranged at the top of the inner wall of the telescopic air bag (22), the air suction valve plate (4) is abutted against a driving lever of the valve core actuating mechanism (100), a spring (6) is arranged above the telescopic air bag (22), the upper end of the spring (6) is connected with a shell (1) of the supply valve, and the lower end of the spring (6) is connected with the top of the outer wall of the telescopic air bag (22);
the method comprises the following steps:
step 1, a user wears an air respirator;
step 2, in the expiration process, introducing the gas exhaled by the user each time into the gas storage chamber for storage, and discharging the gas exhaled by the user each time to the atmosphere; the gas exhaled firstly is gas inhaled by a user last time and stored in the trachea and/or the oral cavity of the user, and the gas exhaled later is gas inhaled by the user last time and exchanged through the lung of the user;
and 3, in the inspiration process, the air which is expired last time by the user and stored in the air storage chamber is inhaled into the lung for reuse.
2. A method of using an air respirator according to claim 1, wherein: in the inspiration process, the gas which is expired by the user and stored in the gas storage cavity is firstly introduced into the lung of the user for reuse, and then the fresh air in the gas storage bottle is introduced into the lung, the air pipe and the oral cavity of the user; or: during inhalation, the air exhaled by the user last time and stored in the air storage chamber and the fresh air in the air storage bottle are simultaneously introduced into the lungs, the air tube and the oral cavity of the user.
3. A method of using an air respirator according to claim 1 or 2, wherein: the valve core (5) is arranged along the central axis of the shell (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010847698.6A CN114073830B (en) | 2020-08-21 | 2020-08-21 | Using method of air respirator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010847698.6A CN114073830B (en) | 2020-08-21 | 2020-08-21 | Using method of air respirator |
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| CN114073830A CN114073830A (en) | 2022-02-22 |
| CN114073830B true CN114073830B (en) | 2023-08-18 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH234304A (en) * | 1942-09-25 | 1944-09-15 | Commeinhes Georges | Self-functioning breathing apparatus. |
| CN203647900U (en) * | 2013-12-12 | 2014-06-18 | 唐愿愿 | Reciprocating breathing type gas saving device |
| WO2014140776A1 (en) * | 2013-03-15 | 2014-09-18 | Trudell Medical International | Breathing apparatus and method for the use thereof |
| CN209051570U (en) * | 2018-10-15 | 2019-07-02 | 深圳市前海华晋康倍科技有限公司 | A kind of respirator that snorkels can be realized quick expiration function |
| CN111317926A (en) * | 2020-03-05 | 2020-06-23 | 华中科技大学 | Disinfection mask |
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2020
- 2020-08-21 CN CN202010847698.6A patent/CN114073830B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH234304A (en) * | 1942-09-25 | 1944-09-15 | Commeinhes Georges | Self-functioning breathing apparatus. |
| WO2014140776A1 (en) * | 2013-03-15 | 2014-09-18 | Trudell Medical International | Breathing apparatus and method for the use thereof |
| CN203647900U (en) * | 2013-12-12 | 2014-06-18 | 唐愿愿 | Reciprocating breathing type gas saving device |
| CN209051570U (en) * | 2018-10-15 | 2019-07-02 | 深圳市前海华晋康倍科技有限公司 | A kind of respirator that snorkels can be realized quick expiration function |
| CN111317926A (en) * | 2020-03-05 | 2020-06-23 | 华中科技大学 | Disinfection mask |
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| CN114073830A (en) | 2022-02-22 |
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