CN115068849A - Knapsack type high-cleanness respiratory protector - Google Patents

Abstract

The invention discloses a backpack type high-cleanness breathing protector, which belongs to the technical field of breathing protection and comprises a breathing protection cover and a filtering type backpack, wherein air with virus, germ, poison gas and dust is filtered by a high-cleanness filtering box in the backpack, and the filtered and clean gas enters the highly-sealed breathing protection cover through one-way opening of a gas suction one-way valve for human body needs; the gas exhaled by the human body is unidirectionally opened through the exhaled gas one-way valve and then delivered to the high-cleanness filter of the filter box in the backpack for treatment and discharge. The breathing protection bag is composed of the breathing protection cover which is beautiful and strong in sealing and the breathing gas high-cleanness filtering backpack, has strong filtering function and strong protection efficiency, and solves various technical problems of breathing protection. The gas-liquid separation device is mainly used for the aspects of personal virus prevention, germ prevention, gas prevention, dust prevention, dense smoke prevention and the like, and can also be used for the protection of hospital medical care personnel, the high-cleanness treatment of the exhaled gas of infectious disease patients and the like.

Description

Knapsack type high-cleanness respiratory protector

Technical Field

The invention relates to the technical field of respiratory protection, which leads gas inhaled and exhaled by a human body to an external special filtering material for high-cleanness filtering, and solves the problems of personal respiratory protection and social infectious disease prevention and treatment.

Background

In the air environment polluted by harmful substances such as bacteria, viruses, dust, toxic gas and the like, people need to wear protective articles for protecting the respiratory system so as to avoid the harm to health and the life danger caused by the inhalation of the harmful substances. The existing mask technology has certain functions, but cannot well protect a respiratory system.

The existing known common technology is to manufacture the mask by using a melt-blown cloth material, due to the limitation of Newton's law of viscosity, the pore size of the melt-blown cloth material is about 0.3 micron, different manufacturers have some differences, but the melt-blown cloth material is difficult to make, otherwise, according to the Newton's law of viscosity, the resistance is increased and the mask cannot breathe, for example, an N95 type mask, the used melt-blown cloth is 50 g, particles and bacteria with the particle size of more than or equal to 0.3 micron can be exactly filtered, the filtering efficiency of the material to the bacteria is more than 95%, but viruses with the particle size of 0.02-0.18 micron can only be adsorbed by static charges, and the defect of unstable filtering and protecting effects due to the reduction of the static charges exists. Particularly, the number of fine particles in the air is large, the static electricity of the melt-blown fabric is reduced, and the number of fine particles penetrating through the melt-blown fabric is large, experiments show that under the simulated high-intensity polluted wolf smoke environment, when a medical mask is worn, 25 g of melt-blown fabric penetrates through color dust after two kinds of the medical mask are worn, and 50 g of melt-blown fabric penetrates through color dust after 5 minutes of the N95 mask. The prior mask has more technical defects and cannot well protect a respiratory system. Meanwhile, the mask is opaque, covers most of the face of a person, is not attractive, has large resistance, is stuffy when being worn, is not willing to be worn for a long time, and can reduce stuffiness in chest as a gap is left around the nose bridge when being worn by many people, so that the practical social effect is not ideal.

The prior known combined dustproof and dustproof mask has certain functions of gas protection and dust protection, but has limited gas protection function, low virus filtering effect and large resistance; the service life of the filtering function is short; nasal breathing and oral breathing are mixed into a whole, and the nasal breathing and the oral breathing cannot adapt to hot weather; some exhaled air is not filtered, so that the problem of gas defense cannot be solved; the filtering device is arranged on the face and is limited by volume, size and the like, and the ultra-clean and low-resistance filtering technology with excellent performance cannot be adopted; is not suitable for long-time social defense. Meanwhile, the bloated face is not beautiful and is not convenient for production and life, and no one is willing to wear the face unless the face enters a high-risk area in a short time. This greatly affects its applicability in society.

Disclosure of Invention

In order to overcome the limitations of limited anti-virus effect, inconvenient life and communication when wearing, short service life, large resource waste and the like of the existing mask, the invention provides the knapsack type high-cleanness breathing protector which is beautiful and comfortable and can exactly prevent viruses for a long time. When a sudden biochemical disaster occurs, people can immediately wear the device, breath isolation between every two people can be achieved, collective work, study and the like can be continuously participated, social production life and national economy are basically not affected, social cost is low, and the social public management measures are assisted, so that the social public is safer.

The invention creates and solves the technical problem and adopts the technical scheme that: the high-cleanness breathing protection equipment consists of a breathing protection cover with a transparent face and a backpack with a filtering function. The face is a transparent and beautiful breathing protective cover which is responsible for isolating breathing organs from outside air and transmitting breathing gas. The filtering function is installed in the backpack, the inhaled gas and the exhaled gas are respectively filtered by professional filtering modules, and the filtering material with the virus filtering aperture is adopted as a core material to carry out multiple compounding, so that the high cleanness and long-term effect stability are achieved, and viruses, germs and the like are filtered and protected. The face is transparent and invisible, so that the life, work and study of people are not affected in long-term use, and the wearing is easy, comfortable and beautiful, and the people can wear the mask continuously within tens of days.

The high-cleanness knapsack respiratory protector has a strong respiratory gas filtering function, mainly comprises a respiratory gas high-cleanness filtering knapsack and a respiratory protection cover, wherein the face part of the respiratory protector is mainly provided with the respiratory protection cover which is sealed, isolated, transparent and attractive, and the filtering module is externally arranged in the knapsack.

The breathing gas high-cleanness filtering backpack mainly comprises a breathing gas high-cleanness filtering box and a backpack bag, wherein the breathing gas high-cleanness filtering box is arranged in the backpack bag and is carried on the back to filter breathing gas in a high-cleanness mode.

The invention relates to a respiratory protection cover, which mainly comprises a respiratory protection cover body, a respiratory protection cover sealing gasket, an inhaled gas facial gas conduit, an exhaled gas facial gas conduit, an inhaled gas one-way valve, an exhaled gas one-way valve and a respiratory protection cover head fixing sleeve, and is used for sealing and isolating respiratory organs from the external unfiltered air environment, inputting filtered high-purity gas for inhalation, and outputting exhaled gas for treatment and discharge.

The front ends of the gas-inhaling facial gas conduit and the gas-exhaling facial gas conduit are respectively connected with the mask body of the breathing protective mask. The rear end of the facial gas conduit of the inhaled gas is connected with the inhaled gas one-way valve, and is connected with the respiratory mask connecting cylinder of the inhalation filtering cabin of the back respiratory gas high-cleanness filtering box through the inhaled gas connecting hose, and the inhaled gas is connected with the high-cleanness gas for human body demand. The rear end of the exhaled gas facial gas conduit is connected with the exhaled gas one-way valve, and the exhaled gas is connected with the exhalation filter cabin breathing mask connecting cylinder of the back breathing gas high-cleanness filter box through the exhaled gas connecting hose, so that the exhaled gas is conveyed to the breathing gas high-cleanness filter box for processing.

The air of the invention is firstly sucked into the air filtering cabin screwing cover on the air inlet through the backpack, enters the breathing air high-cleanness filtering box for high-cleanness filtering, filters clean air, then enters the breathing protective cover body through the breathing cover connecting cylinder of the suction filtering cabin, the suction air connecting hose, the suction air one-way valve and the suction air face air guide pipe, and is sucked by the breathing organ for the requirement of human body. The gas exhaled by the human body enters the respiratory gas high-cleanness filter box for filtration treatment through the respiratory protection cover body, the exhaled gas facial gas conduit, the exhaled gas one-way valve, the exhaled gas connecting hose and the exhaled filter cabin respiratory mask connecting cylinder, and then is exhausted into public air through the backpack exhaled gas outlet.

The main respiratory protector is composed of the respiratory protection cover and the respiratory gas high-cleanness filtering backpack, the gas breathed through the oral cavity is irregular and small in amount, and the respiratory protection cover is protected by an auxiliary special respiratory protection cover. The air flow passing through the oral cavity is very small, the special mask can be made of high-cleanness filter materials as core materials, high-cleanness filtering protection is also carried out, and the resistance is small. When the gas is not needed to be inhaled and exhaled in the oral cavity, the face can only wear the breathing protective cover, so that the protection is tighter and the wearing is easier. When the oral cavity is needed to inhale gas and exhale gas, the breathing protective cover is worn at first, most of breathing gas is isolated and filtered by high cleanness, and meanwhile, the special mask is worn, and a small amount of breathing gas entering and exiting from the oral cavity is isolated and filtered.

The breathing protective cover body fixing device has the function of fixing the breathing protective cover body by the breathing gas facial gas guide pipe, the breathing protective cover lacing and the breathing protective cover head fixing sleeve. The head fixing sleeve of the breathing protective cover is concave, and is fixed on the back of the head to play a role in preventing displacement. The two sides of the breathing protective cover head fixing sleeve are connected with the tying rings on the face gas conduit of the inhaled gas and the face gas conduit of the exhaled gas by the breathing protective cover tying belts, the tightness degree of the breathing protective cover tying belts and the position of the breathing protective cover head fixing sleeve are adjusted, the breathing protective cover can be rightly buckled on the face around the nose, the nostrils are tightly covered, the breathing protective cover head fixing sleeve is isolated and sealed from the external air environment, and the sinking tension of the breathing gas connecting hose and the exhaled gas connecting hose is borne.

The respiratory gas high-cleanness filter box is divided into an inhaled gas filter cabin and an exhaled gas filter cabin, inhaled gas and exhaled gas do not share the same filter module, and inhaled gas is specially filtered by a special inhaled gas filter module in the inhaled gas filter cabin, so that high cleanness and long-term stability of inhaled gas filtration are guaranteed. The exhaled air enters the exhaled air filtering cabin and is filtered by a special exhaled air filtering module in a professional mode.

The backpack air inlet is arranged outside the backpack bag, the sleeve of the air suction filter cabin module of the high-cleanness respiratory gas filter box penetrates through the backpack air inlet, the backpack air suction filter cabin is screwed and fixed by the air suction filter cabin screwing cover, and respiratory gas enters from the backpack air suction filter cabin screwing cover.

The bottom or two sides of the backpack bag are provided with the backpack exhaled air outlets, and the breathed air is exhaled from the backpack exhaled air outlets.

The respiratory gas high-cleanness filter box can be a round filter box or a square filter box.

When the invention needs to filter virus, germ, dust and other fine particles with high clean and long efficiency, the respiratory gas high clean filter box is provided with a fine particle filtering module which can exactly filter the virus with minimum particle size.

When the high-cleanness long-efficiency filtering device is required to filter toxic gas, the high-cleanness filtering box for the respiratory gas is provided with a filtering module capable of filtering the toxic gas.

The backpack of the backpack bag is provided with a bag with additional functions above the air inlet for sucking air, thereby playing a role in decoration and carrying personal articles. The backpack bag is provided with a backpack inhalation gas inlet and a backpack exhalation gas outlet.

If the exhaled gas does not need to be treated, the exhaled gas can be directly discharged through the exhaled gas one-way valve without the filter module

The high-cleanness filter box for the respiratory gas in the respiratory gas high-cleanness filter backpack is a self-suction filter box and can also be an electric air supply filter box.

The invention can be used for high-cleanness long-time filtration protection on viruses, germs, harmful dust, toxic gas and dense smoke.

The face of the wearer is worn with a respiratory system protective cover body designed in a face bionic mode, a respiratory system protective cover sealing washer is additionally arranged, the air tightness is high, the actual comprehensive filtering efficiency is improved, the respiratory system of the wearer is placed in a tight respiratory filtering and protecting system and is highly isolated from a dangerous external air environment, inhaled air is filtered by the inhaled air high-cleanness low-resistance filtering module and then enters the lung, exhaled air is filtered by the exhaled air clean filtering module and then is discharged into a public space, the virus and the germ are practically isolated, prevented and controlled, and the respiratory system is better protected from being invaded by external viruses, germs, dust and poison gas.

By wearing the invention, people can not be influenced when eating, drinking and speaking, thereby better solving the problem of collective dining of people and the problem of uninterrupted wearing in life of people, and basically not influencing various communications and exchanges in work and life of people. If it is desired in certain circumstances to prevent the small flow of air exhaled by the speaker while speaking, the speaker may be required to be aware of the environment and manner of speaking, and if necessary, to wear a special protective mask.

The most central point of the technology of the invention is that the breathing protection filtering function is used for knapsack, a breathing gas high-cleanness filtering box is arranged in a specially-made breathing gas high-cleanness filtering knapsack, the knapsack is made into a protective article with high-cleanness and low-resistance filtering functions, and therefore, the breathing protective cover and the breathing gas high-cleanness filtering knapsack form high-cleanness, low-resistance and long-time-efficiency breathing protective equipment.

The invention is based on the scientific principle that: according to Newton's viscosity law, the shear stress is in direct proportion to the velocity gradient in the normal direction and is irrelevant to the pressure in the normal direction, so that the filtering material is externally arranged in the backpack from the face, the filtering area of air can be increased, the speed of air passing through the filtering material is reduced, the resistance during breathing is reduced, the filtering material with smaller pore diameter can be better considered to filter viruses, and long-term stable protection is carried out.

The beneficial effects of the invention are: 1. the invention is convenient to wear, can carry out high-cleanness low-resistance filtration protection on viruses, germs, harmful dust, toxic gas and the like, and can not lead the viruses and the germs to pollute the protective articles so as to fully ensure that users can not be infected. 2. The filter module replaced each time has long service life, and the filter module still has high filtering cleanliness for thousands of hours after being replaced, so that the respiratory system protector used by a user is ensured to be always efficient and safe. 3. People can all high-cleanness filtration process including the gas exhaled by the dominant patient and the recessive patient and then discharge the gas into the air, so that the respiratory system protector can filter the gas exhaled by the dominant patient and the recessive patient in a high-cleanness manner, and the safety of surrounding personnel is guaranteed. 4. The respiratory system protective cover is attractive in appearance and comfortable to wear, people are willing to wear the protective cover uninterruptedly for a long time, people can breath for 24 hours in tens of days without interruption, the protective cover has great significance for preventing and controlling top-level viruses which have long incubation period and can be spread through air drift, and the viruses and possible more easily-infected and more deadly variant viruses are thoroughly eliminated. 5. The breathing protective cover is transparent and beautiful, realizes double isolation of human respiratory system viruses, does not influence social public life, work, study and production and operation, and reduces social cost. 6. The invention can be used in the field of gas defense, and can also be used in the fields of industrial dust prevention, household fire control, flu prevention, haze prevention, toxic gas removal and the like. 7. The present invention also employs a tight seal technique to better protect the wearer's respiratory system.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a front view of the backpack high-cleanliness respiratory protector plus protective mask of the present invention in wear.

Fig. 2 is a normalized protective wear front view of the backpack high-cleanness respiratory protector of the present invention.

Fig. 3 is a side view of the backpack high-cleanliness respiratory protector in wear.

Fig. 4 is a rear view of the backpack high-cleanliness respiratory protector of the present invention when worn.

Fig. 5 is a perspective view of the breathing gas high-cleanness filtering backpack of the present invention.

Fig. 6 is a perspective view of the breathing gas high-cleanness filtering backpack of the present invention.

Fig. 7 is a front perspective view from the rear of the respiratory gas high-cleanliness filtering backpack of the present invention.

Fig. 8 is a side perspective view of the respiratory gas high-cleanliness filter backpack of the present invention.

In the figure: 100. a respiratory protection mask 101, a respiratory protection mask body 103, a respiratory protection mask sealing gasket 105, an inhaled air facial gas conduit 106, an exhaled air facial gas conduit 112, a respiratory protection mask tie 230, a connecting hose 231, an inhaled air connecting hose 232, an exhaled air connecting hose 240, a special mask cover 250, a respiratory protection mask head fixing sleeve 330, an air one-way valve 331, an inhaled air one-way valve 332, an exhaled air one-way valve 500, a respiratory gas filtering module 503, an inhaled gas filtering module 508, an exhaled gas filtering module 600, a respiratory gas high-cleanness filtering box 620, an inhaled gas filtering cabin 621, an inhaled gas filtering cabin module sleeve 630, an exhaled gas filtering cabin 681, an inhaled filtering cabin breathing mask connecting cylinder 682, an exhaled filtering cabin breathing mask connecting cylinder 690, an inhaled gas filtering cabin screwing cover, 800. the breathing gas high-cleanness filtering backpack comprises a breathing gas high-cleanness filtering backpack, 810, a backpack bag, 812, a backpack strap, 813, a backpack inhalation gas inlet, 814, a backpack exhalation gas outlet and 815 and an additional function bag.

Detailed Description

As shown in fig. 1 to 8, the backpack-type high-cleanness respiratory protector of the present invention mainly comprises a respiratory protection mask body 101, a respiratory protection mask sealing gasket 103, an inhaled facial gas conduit 105, an exhaled facial gas conduit 106, a respiratory protection mask tether 112, an inhaled gas connecting hose 231, an exhaled gas connecting hose 232, a special mask 240, a respiratory protection mask head fixing sleeve 250, an inhaled gas one-way valve 331, an exhaled gas one-way valve 332, an inhaled gas filtering module 503, an exhaled gas filtering module 508, a respiratory gas high-cleanness filter cartridge 600, an inhaled gas filter cabin screwing cover 690, a backpack bag 810, etc.

The method comprises the following specific steps: the backpack type high-cleanness respiratory protector is mainly divided into a respiratory protector cover body 101, a respiratory protector sealing washer 103, an inhaled air facial gas conduit 105, an exhaled air facial gas conduit 106, a respiratory protector lacing 112, an inhaled air connecting hose 231, an exhaled air connecting hose 232, a special mask 240, a respiratory protector head fixing sleeve 250, an inhaled air one-way valve 331, an exhaled air one-way valve 332, an inhaled air filtering module 503, an exhaled air filtering module 508, a respiratory air high-cleanness filter box 600, an inhaled air filtering cabin screwing cover 690, a backpack bag 810 and the like. Firstly, manufacturing a breathing protective cover body 101, an inhaled gas facial gas guide pipe 105 and an exhaled gas facial gas guide pipe 106 by using hard transparent materials; manufacturing a breathing protective cover sealing washer 103 by using silica gel with the hardness not more than 40 degrees; the breathing gas high-cleanness filter cartridge 600 is manufactured by injection molding of materials such as ABS, and the backpack bag 810 is manufactured by cloth. Secondly, assembling the breathing protective cover sealing washer 103 with the breathing protective cover body 101; an inhaled gas facial gas guide pipe 105 and an exhaled gas facial gas guide pipe 106 are connected and assembled with the breathing protective cover body 101 and are respectively connected with an inhaled gas one-way valve 331 and an exhaled gas one-way valve 332; the respiratory mask 100 is assembled by attaching the inspiratory facial gas conduit 105 tether and the expiratory facial gas conduit 106 tether to the respiratory mask head mount 250 with the respiratory mask tether 112. Thirdly, the breathing gas disc-shaped filter module 503 and the breathing gas disc-shaped filter module 508 are arranged in the breathing gas high-cleanness filter box 600 and then arranged in the backpack outer cover 310, the breathing gas filter cabin module sleeve 621 extends out of the backpack 810 from the backpack breathing gas inlet 813, and the breathing gas filter cabin screwing cover 690 screws to assemble the breathing gas high-cleanness filter backpack 300. Fourthly, the breathing protective cover 100 is connected with the breathing gas inlet and the breathing gas outlet of the breathing gas high-cleanness filtering backpack 300 by the breathing gas connecting hose 231 and the breathing gas connecting hose 232, and the backpack type high-cleanness breathing protective cover is assembled.

When the user uses the breathing protective mask, the breathing gas high-cleanness filtering backpack 300 of the backpack type high-cleanness breathing protective mask is carried on the back, the breathing protective mask 100 is worn on the face, and the position of the head fixing sleeve 250 of the breathing protective mask and the tightness degree of the lacing 112 of the breathing protective mask are adjusted, so that the breathing protective mask 100 can be used for rightly, comfortably and tightly illuminating respiratory organs. If mouth breathing is needed, the respirator 240 is worn, and then the breathing gas can be tightly sealed and highly-clean filtered.

Except the public use in the aspect of anti-virus, medical staff in hospitals, patients with respiratory system diseases, workers for receiving and decomposing industrial and mining dust, people in contact with toxic gas, home fire protection, formaldehyde removal and the like can also be used. The backpack type high-cleanness breathing protector can be assembled at home and placed at a fire-fighting position at ordinary times, and can be taken down quickly to be worn by family members in case of fire hazard, so that the survival, the standby and the escape time can be prolonged by multiple times; the life health protection capability can also be enhanced by wearing the whole family in case of other serious air disasters.

The respiratory system of the technology of the invention has double isolation and community disinfection when necessary, namely, the air exhaled by each person is filtered cleanly, the public space is disinfected, the air inhaled by each person is filtered cleanly, and the spread of the strong infectious virus can be prevented and controlled with lower cost and better effect. The invention relates to double isolation, which is to filter and isolate viruses exhaled or coughed by dominant patients and recessive patients in an exhaled air filtering material module of a respiratory gas high-cleanness filtering box after people all wear the filter box, and the viruses can be cleaned regularly without returning to the respiratory tract of the patient and being infected to family, colleagues, classmates, doctors and other personnel. The vast public who is not infected is to isolate possible virus outside the respiratory system and catch by the high-cleanness filter box 600 of the respiratory gas completely, so that the content of the virus in the indoor air is well reduced, and the risk of secondary infection caused by shaking off the house when the virus in the air is gathered on the mask and taken home to take the mask for vibration is avoided.

Claims (10)

1. High clean respiratory protector of knapsack formula, characterized by: the breathing mask mainly comprises a breathing gas high-cleanness filtering backpack (800) and a breathing mask (100), wherein the face part is mainly provided with the breathing mask which is sealed, isolated, transparent and attractive, and a filtering module is externally arranged in the backpack;

the breathing gas high-cleanness filtering backpack (800) mainly comprises a breathing gas high-cleanness filtering box (600) and a backpack bag (810), wherein the breathing gas high-cleanness filtering box (600) is arranged in the backpack bag (810) and is carried on the back to filter the breathing gas high-cleanness;

the breathing protective cover (100) mainly comprises a breathing protective cover body (101), a breathing protective cover sealing gasket (103), a breathing gas facial gas guide pipe (105), a breathing gas facial gas guide pipe (106), a breathing gas one-way valve (331), a breathing gas one-way valve (332) and a breathing protective cover head fixing sleeve (250), and is used for sealing and isolating a breathing organ from an external unfiltered air environment, inputting filtered high-cleanness gas for inhalation, and outputting the exhaled gas for treatment and emission;

the front ends of the inhaled gas facial gas conduit (105) and the exhaled gas facial gas conduit (106) are respectively connected with the breathing protective cover body (101); the rear end of the face gas conduit (105) of the inhaled gas is connected with an inhaled gas one-way valve (331), and is connected with a respiratory mask connecting cylinder (681) of an inhalation filter cabin of a back respiratory gas high-cleanness filter box (600) through an inhaled gas connecting hose (231) to access the high-cleanness gas for human body needs; the rear end of the exhaled gas facial gas conduit (106) is connected with an exhaled gas one-way valve (332), and is connected with an exhaled filter cabin respiratory mask connecting cylinder (682) of the back respiratory gas high-cleanness filter box (600) through an exhaled gas connecting hose (232), and the exhaled gas is sent to the respiratory gas high-cleanness filter box (600) for processing;

air firstly enters a respiratory gas high-cleanness filter box (600) through a suction gas filter cabin screwing cover (690) on a backpack suction gas inlet (813) to be highly-cleaned and filtered, and then enters a respiratory protection cover body (101) through a suction filter cabin respiratory mask connecting cylinder (681), a suction gas connecting hose (231), a suction gas one-way valve (331) and a suction gas face gas conduit (105), and is sucked by a respiratory organ for human body requirements; the gas exhaled by the human body enters a respiratory gas high-cleanness filter box (600) through a respiratory protection cover body (101), an exhaled gas facial gas conduit (106), an exhaled gas one-way valve (332), an exhaled gas connecting hose (232) and an exhaled filter cabin respiratory mask connecting cylinder (682) to be filtered, and then is exhausted into public air through a backpack exhaled gas outlet (314).

2. The backpack high-cleanliness respiratory protector as claimed in claim 1, wherein: the main respiratory protector is composed of the respiratory protection cover (100) and the respiratory gas high-cleanness filtering backpack (800), the gas breathed through the oral cavity is irregular and small in amount, and the gas is protected by an auxiliary special protective mask (240); the gas flow passing through the oral cavity is very small, the special mask (240) can be made of high-cleanness filter materials as core materials, high-cleanness filtering protection is also carried out, and the resistance is small; the face can only wear the breathing protective cover (100) when the breath inhalation and exhalation of the mouth are not needed; when the oral cavity is needed to inhale gas and exhale gas, a breathing protective cover (100) is firstly worn, the high-cleanness isolation and filtration are used for protecting most breathing gas, and a special mask protective cover (240) is worn at the same time, and the isolation and filtration are used for protecting the breathing gas which slightly enters and exits from the oral cavity.

3. The backpack high-cleanliness respiratory protector as claimed in claim 1, wherein: the inhalation gas facial gas conduit (105), the exhalation gas facial gas conduit (106), the breathing protective cover lacing (112) and the breathing protective cover head fixing sleeve (250) play a role in fixing the breathing protective cover body (101); the head fixing sleeve (250) of the breathing protective cover is concave, and is fixed on the back head of the head to play a role in preventing displacement; two sides of the breathing protective cover head fixing sleeve (250) are connected with a fastening ring on the inhaled air facial gas conduit (105) and the exhaled air facial gas conduit (106) through breathing protective cover ties (112), the tightness degree of the breathing protective cover ties (112) and the position of the breathing protective cover head fixing sleeve (250) are adjusted, the breathing protective cover (100) can be rightly fastened on the face around the nose, the nostrils are tightly covered, the breathing protective cover head fixing sleeve is isolated and sealed from the external air environment, and the sinking tension of the inhaled air connecting hose (231) and the exhaled air connecting hose (232) is borne.

4. The backpack high-cleanliness respiratory protector as claimed in claim 1, wherein: the respiratory gas high-cleanness filter box (600) is divided into an inhaled gas filter cabin (620) and an exhaled gas filter cabin (630), the inhaled gas and the exhaled gas do not share the same filter module, and the inhaled gas is specially filtered by a special inhaled gas filter module (503) in the inhaled gas filter cabin (620) independently, so that high cleanness and long-term stability of the inhaled gas filtration are guaranteed; the exhaled gas enters the exhaled gas filtering cabin (630) and is professionally filtered and processed by a special exhaled gas filtering module (508).

5. The backpack high-cleanliness respiratory protector as claimed in claim 1, wherein: the outside of the knapsack bag (810) is provided with a knapsack inhaled air inlet (813), and an inhaled air filtering cabin module sleeve (621) of the respiratory gas high-cleanness filter box (600) passes through the knapsack inhaled air inlet and is screwed and fixed by an inhaled air filtering cabin screwing cover (690), and the respiratory gas enters from the knapsack inhaled air inlet.

6. The backpack high-cleanliness respiratory protector as claimed in claim 1, wherein: the bottom or two sides of the knapsack bag (810) are provided with a knapsack expired gas outlet (814), and the breathed gas is expired.

7. The backpack high-cleanliness respiratory protector as claimed in claim 1, wherein: the respiratory gas high-cleanness filter box (600) can be a round filter box or a square filter box.

8. The backpack high-cleanliness respiratory protector as claimed in claim 1, wherein: when fine particles such as viruses, germs, dust and the like need to be filtered with high cleanness and long efficiency, the respiratory gas high-cleanness filter box (600) is provided with a fine particle filtering module capable of exactly filtering the viruses with the minimum particle size; when the high-cleanness long-efficiency filtering of the toxic gas is needed, the respiratory gas high-cleanness filtering box (600) is provided with a filtering module capable of filtering the toxic gas.

9. The backpack high-cleanliness respiratory protector as claimed in claim 1, wherein: the backpack bag (810) has a backpack inhalation gas inlet (813) and a backpack exhalation gas outlet (814).

10. The backpack-type high-cleanness respiratory protector as claimed in claim 1, wherein: the breathing protection filtering function knapsack is characterized in that a breathing gas high-cleaning filtering box (600) is arranged in a specially-made breathing gas high-cleaning filtering knapsack (800) in a wrapping mode, and the knapsack is made into a protective article with high-cleaning and low-resistance filtering functions, so that a breathing protective cover (100) and the breathing gas high-cleaning filtering knapsack (800) form high-cleaning, low-resistance and long-time-efficiency breathing protective equipment.

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