CN211863608U

CN211863608U - Respiratory system of electronic malleation air filtration clean protection

Info

Publication number: CN211863608U
Application number: CN202020210196.8U
Authority: CN
Inventors: 揭业冰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-11-06
Anticipated expiration: 2030-02-26

Abstract

The utility model relates to a respiratory of electronic malleation air filtration protection, including the full face guard, handle the air and export the air supply unit of positive pressure formula air and connect the gas-supply pipe between the air supply output interface of the air supply unit and the air interface of the full face guard, full face guard inside is equipped with eye face cavity and oral cavity, the air supply unit includes the casing, is equipped with the air pump that is used for extracting the air in the casing, the air inlet of air pump is connected with oil water separator, the gas outlet of air pump is connected with the temperature humidifier, the temperature humidifier is connected with the air supply output interface that is used for the gas output; an air filter is arranged between the air delivery pipe and an air source output interface of the air source device; a biological virus filter is arranged between the air delivery pipe and the air interface of the full face mask. The utility model discloses can provide clear air for the user, improve user's comfort level and improved healthy quality of life, help the user can be in the work high efficiency that has under the adverse circumstances such as dust, virus, bacterium, provide the guarantee for life safety.

Description

Respiratory system of electronic malleation air filtration clean protection

The technical field is as follows:

the utility model belongs to the technical field of wearing formula malleation respiratory instrument equipment, especially, relate to a respiratory of electronic malleation air filtration protection.

Background art:

safety and health are among the most basic considerations in manufacturing labor. However, in actual work in a harmful environment, how to protect workers from being damaged by toxic and harmful gases to the maximum extent when the workers work in severe environments such as toxic and harmful germs, dust and the like is a problem to be solved urgently.

The positive pressure respirator is a breathing protective device which is widely used in the environment of dense smoke, poisonous and harmful gas, dust and oxygen lack. Protective respirators currently in daily use include passive filter respirators or oronasal masks, as well as positive pressure filtering respirators that are worn at source pressure. However, although the passive full-face mask respirator is simple and convenient to wear, the air pressure in the respirator cannot be adjusted, the breathing is easy, the exhaust gas can be discharged only by strong force after the exhalation, the transparent mask of a wearer or goggles worn by the wearer are easy to cause the harm of misting, blurred vision, overlarge pressure of the heart and the lung, unsmooth breathing, difficult breathing, oxygen deficiency and other adverse health, and the passive full-face mask respirator is easy to be damaged by harmful gas due to poor air tightness in toxic gas environments. The common structure of the active positive pressure filtering respirator is that a bottled air source is connected with a breathing mask, and the air source part adopts a high-pressure air bottle air supply mode, so that the active positive pressure filtering respirator has the defects of heavy load, high pressure, large volume, short air supply time and the like, and is not suitable for long-time uninterrupted breathing protection and work.

The utility model has the following contents:

the utility model discloses make the improvement to the problem that above-mentioned prior art exists, promptly the utility model aims to solve the technical problem that a respiratory of electronic malleation air filtration protection is provided, reasonable in design can directly breathe convenient to use after having handled the existing air in scene.

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a respiratory of electronic malleation air filtration protection, includes the full face guard, is used for handling the air and exports the air supply unit of positive pressure formula air and connects the gas-supply pipe between the air supply output interface of the air supply unit and the air interface of full face guard, be equipped with first filtration piece between the air supply output interface of gas-supply pipe and air supply unit, be equipped with the second filtration piece between the air interface of gas-supply pipe and full face guard.

Further, the air supply device comprises a casing, an air pump used for extracting ambient air is arranged in the casing, an air inlet of the air pump is connected with an oil-water separator, an air outlet of the air pump is connected with a temperature humidifier used for adjusting the temperature and humidity of air in the air outlet of the air pump, and the temperature humidifier is connected with an air supply output interface used for outputting air of the air supply device.

Furthermore, the gas source device also comprises a circuit board and a pressure sensing module which is connected with the circuit board and is used for detecting the gas pressure output by the gas source output interface, wherein the circuit board receives the signal of the pressure sensing module and controls the output of the gas pump according to the received signal.

Furthermore, the air source device further comprises a display screen for displaying information of the whole air source device, a control switch connected with the circuit board and used for controlling the display screen, a charging power supply module arranged inside the casing and used for supplying power to the whole air source device, and a power switch used for controlling the whole air source device to be switched on and off.

Further, the first filter element is an air filter; the second filter element is a biological virus filter.

Further, the top is located to the gas connection of full face guard, and the inside of full face guard is equipped with the eyelid cavity and the oronasal cavity that are linked together through gas passage and gas connection respectively, gaseous uniflow in the eyelid cavity is to the oronasal cavity in, the indoor gaseous front end one-way outflow to the full face guard outside from the oronasal cavity of oronasal cavity.

Furthermore, the eyelid cavity is communicated with the mouth and nose cavity through a through hole, and a first one-way valve which is favorable for the gas in the eyelid cavity to flow to the mouth and nose cavity in a one-way mode is arranged in the through hole; the front end front side of mouth nasal cavity is equipped with gas discharge passageway, be equipped with in the gas discharge passageway and be favorable to the indoor gaseous one-way second check valve that flows to the full face guard outside of mouth nasal cavity.

Furthermore, the full face mask comprises a head band, transparent lenses, a face mask, an outer frame and a breathing tube, the lower end of the breathing tube is connected with the air interface, and the upper end of the breathing tube is connected with the second filter element; the nose support plate is arranged in the face mask, the upper part and the lower part of the face mask are divided into an eyelid cavity for observation and an oral cavity and a nasal cavity for breathing by the nose support plate, and the nasal support plate is provided with a through hole for communicating the eyelid cavity with the oral cavity and the nasal cavity; the center of the top of the mask is provided with a middle gas channel for communicating the gas interface with the eye-face cavity, the edges of the two sides of the mask are provided with side gas channels for communicating the gas interface with the mouth-nose cavity, and the side gas channels are independent from the middle gas channel; the transparent lens is provided with a gas discharge channel at the front area of the oral-nasal cavity.

Furthermore, the transparent lens is sleeved with the face mask, and the transparent lens and the face mask are fixed together through the outer frame; the two sides of the outer frame are provided with edge buckles, the head band is detachably connected with the edge buckles, and the connecting part of the head band and the edge buckles is provided with anti-slip teeth; the front side area of the eyelid cavity on the transparent lens is of a plane structure.

Compared with the prior art, the utility model discloses following effect has: the utility model discloses a positive pressure formula one-way air feed mode, gaseous earlier after oil water separator and the temperature humidifier in the air supply unit handle, input eyelid cavity and the oronasal cavity in the full face guard after filtration and bacterial virus filter again, gas quality is high, can not cause the goggles of wearing person's transparent face guard or wearing to fog the field of vision fuzzy and cardiopulmonary pressure too big, breathe not smooth, harm such as dyspnea and oxygen deficiency, can ensure user's eyes simultaneously under the effect of positive pressure, oronasal can not infringed by harmful gas, protective effect is obvious.

Description of the drawings:

fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic view of the full face mask according to an embodiment of the present invention in an exploded state;

fig. 3 is a schematic diagram of an embodiment of the present invention.

In the figure:

1-full face mask; 2-a transparent lens; 3-a biological virus filter; 4-outer frame; 5-a breathing tube; 6-gas transmission pipe; 7-an air filter; 8-side buckling; 9-square hole; 10-gas source means; 11-a display screen; 12-a control switch; 13-a power switch; 14-gas source output interface; 15-a temperature humidifier; 16-waistband fixing groove; 17-gas interface; 18-oronasal cavity; 19-a headband; 20-a pipe joint; 21-anti-slip teeth; 22-lower drainage air cover; 23-a second one-way valve; 24-a water drain valve hole; 25-a nose pad; 26-side gas channels; 27-a charging power supply module; 28-a first one-way valve; 29-an air pump; 30-an oil-water separator; 31-a face mask; 32-a circuit board; 33-a pressure sensing module; 34-an intermediate gas channel; 35-eyelid chamber; 36-a housing; 37-gas discharge channel.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-3, the utility model relates to a respiratory of electronic malleation air filtration protection, including dress in facial full face guard 1, be used for handling the air and export the air supply unit 10 of positive pressure formula air and connect the gas-supply pipe 6 between the air supply output interface 14 of air supply unit 10 and the air interface 17 of full face guard 1, the air interface 17 of full face guard 1 locates the top, and the inside of full face guard 1 is equipped with the eyelid cavity chamber 35 and the nose cavity chamber 18 that are linked together with air interface 17 through the gas passage respectively, the gaseous one-way flow in the eyelid cavity chamber 35 is to the nose cavity chamber 18, the gaseous one-way outflow of front end from nose cavity chamber 18 in the nose cavity chamber 18 is to the full face guard 1 outside; the air source device 10 comprises a casing 36, an air pump 29 for pumping ambient air is arranged in the casing 36, an air inlet of the air pump 29 is connected with an oil-water separator 30, the oil-water separator 30 can remove impurities such as redundant moisture and oil in the air, an air outlet of the air pump 29 is connected with a temperature humidifier 15 for adjusting the temperature and humidity of air at an air outlet of the air pump 29, and the temperature humidifier 15 is connected with an air source output interface 14 for outputting the air of the air source device 10; an air filter 7 is arranged between the air delivery pipe 6 and an air source output interface 14 of the air source device 10 to filter out dust and solid impurities in the air; a biological virus filter 3 is arranged between the air pipe 6 and the air interface 17 of the full face mask 1 to filter out bacteria and viruses in the air. During operation adopts the one-way air feed mode of positive pressure formula, and gaseous earlier after oil water separator and the temperature humidifier processing in the air supply unit, inputed eyelid cavity chamber and oronasal cavity chamber in the full face mask after filtration and bacterial virus filter again, and gaseous high quality can not cause the person of wearing cardiopulmonary pressure too big, breathes not smoothly, harm such as breathing difficulty and oxygen deficiency, can ensure simultaneously that user's eyes, oronasal can not infringed by harmful gas under the effect of positive pressure, and the protective effect is obvious.

In this embodiment, the air supply device 10 further includes a circuit board 32 and a pressure sensing module 33 connected to the circuit board 32 and used for detecting the air pressure output by the air supply output interface 14, where the circuit board 32 receives a signal from the pressure sensing module 33 and controls the air pump 29 to output air according to the received signal. The pressure sensing module of the air source device monitors the respiratory capacity and respiratory frequency of a user, calculates the gas compensation flow required by the user in different environments, automatically controls the output of the air pump, and ensures that the air pressure in the eye-face cavity and the mouth-nose cavity in the full face mask is constant positive pressure in setting.

In this embodiment, the air supply device 10 further includes a display screen 11 for displaying information of the whole air supply device 10, a control switch 12 connected to the circuit board 32 and used for controlling the display screen, a charging power module 27 arranged inside the casing 36 and used for supplying power to the whole air supply device 10, and a power switch 13 used for controlling the whole air supply device 10 to be powered on and powered off, wherein the power switch 13 and the control switch 12 are both arranged outside the casing 36, and the charging power module 27 is connected to the AC220V through a power adapter. During operation, under the good gas circuit of connection, the switch outside the casing of opening air supply unit, set for the gaseous malleation pressure value that shows in the display screen through the control switch outside the casing, gaseous humiture parameter and mode of operation, control switch starts air pump and warm humidifier work, air pump work output gas is through the pressure-sensitive module of real-time supervision output gas pressure, the pressure-sensitive module feeds back the pressure of gathering to the circuit board in real time, the circuit board is according to the parameter control air pump work or the work of warm humidifier that the display screen set for, to the gas channel gas leakage of gas-supply pipe and full face guard during operation, charging source is undervoltage, the gas circuit blocks up etc. and gives an alarm.

In this embodiment, the air pump 29 works to change the air quality or the human breathing amount in different environments into the pressure sensing module, the pressure sensing module continuously and continuously monitors the breathing amount and the breathing frequency of a user, and sends a monitored feedback signal to the circuit board, the circuit board calculates the gas compensation flow required by the user in different environments, automatically controls the output air quantity of the air pump in real time, ensures that the air pressure in the eye-face cavity and the mouth-nose cavity of the full face mask is constant positive pressure in real time, and controls the output air quantity of the air pump; the adjustable range of constant pressure is 4-20 cm water column. Different users can select a comfortable air output mode of the air pump, the air output mode comprises a continuous air outlet mode and an intermittent air outlet mode, and the setting range of intermittent frequency is less than 4-20 times per minute.

In this embodiment, the warming and humidifying device 15 can reduce the stimulation of mechanical ventilation to the cardiopulmonary system, and improve the adaptability of the user to the mechanical ventilation; keeping the alveolus moist, enhancing the activity of the alveolus, and promoting gas exchange; keep the humidity of air flue and air flue secretion, be favorable to inhaling phlegm and prevent the air flue and block up, provide comfortable respiratory quality.

In this embodiment, the air filter 7 is used to separate liquid water and liquid oil drops from the compressed air and filter out dust and solid impurities from the air. The biological virus filter 3 is mainly made of transparent plastic upper and lower shells, a lower shell and a fiber filter material block, is sterilized by ethylene oxide, is sterile and transparent, has the filtering efficiency of 99.66 percent and can prevent infectious substances from diffusing to the environment, and a machine and a user are isolated from potential bacteria/viruses in a ventilation system. The biological virus filter is arranged between the air interface and the air delivery pipe of the full face mask, so that the pipeline can be prevented from being damaged in use, harmful gas is prevented from entering the full face mask, and good secondary protection is achieved. The air filter and the biological virus filter are used for removing dust, impurities, redundant moisture, oil, bacteria and viruses and the like in the air, clear, positive-pressure, self-supply and safe air is provided for a user to breathe, the work place under the severe environment can be worn and used conveniently, the operation is simple and easy to use, comfortable breathing of people can be provided, and the biological virus filter is convenient and practical and has higher popularization value. The utility model relates to a respiratory protection articles for use can reduce worker's work harm, have improved the health level.

In this embodiment, in order to conveniently carry the air source device 10, two sides of the outer surface of the housing 36 are provided with belt fixing grooves 16, a belt (not shown) is fixed in the belt fixing grooves, and the belts on the two sides are tied by being wound around the waist and abdomen from the back of the body when in use.

In this embodiment, the eyelid cavity 35 is communicated with the mouth-nose cavity 18 via a through hole, and a first one-way valve 28 is disposed in the through hole to facilitate the gas in the eyelid cavity 35 to flow to the mouth-nose cavity 18 in one way; the front side of the front end of the oral-nasal cavity 18 is provided with a gas discharge channel 37, and a second one-way valve 23 which is used for facilitating the one-way flow of the gas in the oral-nasal cavity 18 to the outer side of the full face mask 1 is arranged in the gas discharge channel 37. Because the air in the eye-face cavity can only flow to the mouth-nose cavity in a one-way mode, the fogging vision blurring of the whole mask or the worn goggles can be effectively avoided.

In this embodiment, the full face mask 1 includes a head band 19, a transparent lens 2, a face mask 31, an outer frame 4 and a breathing tube 5, the lower end of the breathing tube 5 is connected to the air interface 17, and the upper end of the breathing tube 5 is connected to the biological virus filter 3; a nose supporting plate 25 is arranged in the face mask 31, the upper part and the lower part of the face mask 31 are divided into an eyelid cavity 35 for observation and an oral and nasal cavity 18 for breathing by the nose supporting plate 25, and the eyelid cavity 35 is communicated with the oral and nasal cavity 18 by through holes arranged on the nose supporting plate 25; a middle gas channel 34 for communicating the gas connector 17 with the eyelid cavity 35 is arranged in the center of the top of the face mask 31, side gas channels 26 for communicating the gas connector 17 with the mouth and nose cavity 18 are arranged on both side edges of the face mask 31, and the side gas channels 26 are independent from the middle gas channel 34; the transparent lens 2 is provided with a gas discharge channel 37 in the area of the front side of the oronasal cavity 18.

In this embodiment, the transparent lens 2 is sleeved with the face mask 31, and the transparent lens 2 and the face mask 31 are fixed together through the outer frame 4; the two sides of the outer frame 4 are provided with edge buckles 8, the head band 19 is detachably connected with the edge buckles 8, and the connecting part of the head band 19 and the edge buckles 8 is provided with anti-slip teeth 21; the front side area of the eyelid cavity 35 on the transparent lens 2 is a plane structure; two sides of the outer frame 4 are respectively provided with a plurality of square holes 9 which can be used for fixing when other accessories are assembled.

In this embodiment, the face mask 31 is made of soft rubber; the frame 4 adopts the integral structure, and the inner circle of frame 4 inlays the face guard 31 of flexible glue material, can enclose eyes, mouth nose and keep off hugging closely the face.

In this embodiment, the lower drainage cover 22 is embedded in the gas discharge channel 37, the drainage valve hole 24 is formed in the lower drainage cover 22, and the one-way drainage valve sheet made of a silica gel soft material is arranged in the drainage valve hole 24 to play a role in water prevention and air discharge, and the one-way drainage valve sheet is the second one-way valve 23; the through hole is also a water drainage air valve hole 24; the first check valve 28 also employs a one-way drain air valve plate.

In this embodiment, the specific use flow is as follows: connect air cleaner 7 earlier with air supply output interface 14 of air supply unit 10, connect air cleaner 7 with the one end of air supply pipe 6 again, later connect biological virus filter 3 in the one end of air supply pipe 6, again be connected biological virus filter 3 with breathing tube 5, be connected breathing tube 5 with air interface 17 of full face guard 1, adjust the stop-slip tooth 21 position of headband 19 of full face guard 1, hug closely face with face guard 31 cover of full face guard 1, tie up the afterbrain with bandeau 19, insert the frame 4 of full face guard 1 with the limit of bandeau 19 and fix and tie, after hugging closely the back waist with air supply unit 10, it is good to connect the belly around the waist from the health rear respectively with casing 36 both sides waistband of air supply unit 10. After the connection of the gas loop and the wearing are confirmed, a power switch 13 of the gas source device 10 is turned on, a gas positive pressure value, gas temperature and humidity parameters and a working mode displayed in the display screen 11 are set through a control switch 12 outside the casing 36, the control switch 12 starts the gas pump 29 and the temperature humidifier 15 to work, external air enters from a gas inlet of the gas pump 29, passes through the oil-water separator 30, enters into the gas pump 29, and then passes through the temperature humidifier 15 and is output from the gas source output interface 14; the air output by the air source output interface 14 is filtered by the air filter 7 and then enters the air pipe 6 and reaches the biological virus filter 3, a part of the clean air filtered by the biological virus filter 3 enters the eyelid cavity 35 from the middle air channel 34 of the whole mask 1, the other part of the clean air enters the oral cavity and nasal cavity 18 from the side air channels 26 at the two sides of the whole mask 1 for human breathing, the user breathes clean, positive pressure, self-contained and safe air, the air in the eyelid cavity 35 enters the oral cavity and nasal cavity 18 through the first one-way valve 28, and the air entering the oral cavity and nasal cavity 18 and the air exhaled by the human body are exhausted through the second one-way valve 23 at the front side of the oral cavity and nasal cavity 18, as shown in fig. 3.

The utility model has the advantages that:

(1) the positive pressure type one-way gas supply mode is adopted, the gas source device outputs constant positive pressure gas through an automatic control technology, the constant positive pressure gas can be provided for breathing of a user wearing the full mask of the one-way gas circuit through filtering, a fit gap between the full mask and the face can also form a gas barrier under the positive pressure gas, external harmful gas is prevented from invading the mouth, the nose and the eyes of the user, and high breathing quality is provided while production and use are not influenced;

(2) the gas output under constant positive pressure is automatically controlled and realized through an oil-water separator and pressure of a gas source device, the gas is input into an eye-face cavity and an oral-nasal cavity of the full mask after air filtration and bacterial virus filtration, waste gas is discharged from a one-way water discharge gas valve plate of the oral-nasal cavity, the transparent mask of a wearer or goggles worn by the wearer can not be caused to have fuzzy foggy visual field and overlarge pressure of heart and lung, unsmooth breathing, difficult breathing, oxygen deficiency and other hazards, the gas quality is high, the full mask with good air tightness can ensure that the eyes, the mouth and the nose of the user can not be invaded by toxic gas under the action of positive pressure, and the effect; the comfort level of a user is improved, the labor hazard of workers is reduced, the health level is improved, and the personnel working in a dust severe environment are helped to improve the living quality;

(3) the system has the characteristics of portability, wearing, small volume, simple operation, long air supply time, comfortable use, good protection, no influence on operation and the like;

(4) the utility model provides high user's comfort level with improved healthy quality of life, also reduced because of the harm that the air quality caused the worker, the help user can be in the work high efficiency that has under the adverse circumstances such as dust, virus, bacterium, have confidence and have the sense of security, provide the guarantee for life safety.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The utility model provides a respiratory of electronic malleation air filtration net protection which characterized in that: including the full face guard, be used for handling the air and export the air supply unit of positive pressure formula air and connect the gas-supply pipe between the air supply output interface of the air supply unit and the air supply interface of full face guard, be equipped with first filtration piece between the gas-supply output interface of gas-supply pipe and air supply unit, be equipped with the second filtration piece between the gas-supply pipe and the air supply interface of full face guard.

2. The respiratory system of claim 1, wherein the respiratory system comprises: the air source device comprises a casing, an air pump used for extracting ambient air is arranged in the casing, an air inlet of the air pump is connected with an oil-water separator, an air outlet of the air pump is connected with a temperature humidifier used for adjusting the temperature and humidity of air outlet gas of the air pump, and the temperature humidifier is connected with an air source output interface used for outputting air of the air source device.

3. The respiratory system of claim 2, wherein the respiratory system comprises: the gas source device also comprises a circuit board and a pressure sensing module which is connected with the circuit board and used for detecting the gas pressure output by the gas source output interface, wherein the circuit board receives the signal of the pressure sensing module and controls the output of the gas pump according to the received signal.

4. The respiratory system of claim 3, wherein the respiratory system comprises: the air source device further comprises a display screen for displaying information of the whole air source device, a control switch connected with the circuit board and used for controlling the display screen, a charging power supply module arranged in the shell and used for supplying power to the whole air source device, and a power switch used for controlling the whole air source device to be switched on and off.

5. The respiratory system of claim 1, wherein the respiratory system comprises: the first filter element is an air filter; the second filter element is a biological virus filter.

6. The respiratory system of claim 1, wherein the respiratory system comprises: the top is located to the gas connection of full face guard, and the inside of full face guard is equipped with the eyelid cavity and the oral cavity chamber that are linked together through gas passage and gas connection respectively, gaseous uniflow in the eyelid cavity chamber is to the oral cavity chamber, the oral cavity chamber is indoor gaseous from the one-way outflow of the front end to the full face guard outside of oral cavity chamber.

7. The respiratory system of claim 6, wherein the respiratory system comprises: the eyelid cavity is communicated with the oral cavity and the nasal cavity through a through hole, and a first one-way valve which is favorable for the gas in the eyelid cavity to flow to the oral cavity and the nasal cavity in a one-way mode is arranged in the through hole; the front side of the oral cavity and the nasal cavity is provided with a gas discharge channel, and a second one-way valve which is beneficial to the unidirectional flow of gas in the oral cavity and the nasal cavity to the outer side of the full face mask is arranged in the gas discharge channel.

8. The respiratory system of electric positive pressure air filtration protection according to claim 7, wherein: the full mask comprises a head band, transparent lenses, a mask, an outer frame and a breathing tube, the lower end of the breathing tube is connected with the air interface, and the upper end of the breathing tube is connected with the second filter piece; the nose support plate is arranged in the face mask, the upper part and the lower part of the face mask are divided into an eyelid cavity for observation and an oral cavity and a nasal cavity for breathing by the nose support plate, and the nasal support plate is provided with a through hole for communicating the eyelid cavity with the oral cavity and the nasal cavity; the center of the top of the mask is provided with a middle gas channel for communicating the gas interface with the eye-face cavity, the edges of the two sides of the mask are provided with side gas channels for communicating the gas interface with the mouth-nose cavity, and the side gas channels are independent from the middle gas channel; the transparent lens is provided with a gas discharge channel at the front area of the oral-nasal cavity.

9. The respiratory system of claim 8, wherein the respiratory system comprises: the transparent lens is sleeved with the face mask, and the transparent lens and the face mask are fixed together through the outer frame; the two sides of the outer frame are provided with edge buckles, the head band is detachably connected with the edge buckles, and the connecting part of the head band and the edge buckles is provided with anti-slip teeth; the front side area of the eyelid cavity on the transparent lens is of a plane structure.