CN111408007A

CN111408007A - Mask and oxygen mask, goggles and protective mask based on principle of mask

Info

Publication number: CN111408007A
Application number: CN202010271274.XA
Authority: CN
Inventors: 门立山
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-07-14

Abstract

A mask and oxygen mask, goggles and protective mask based on the principle thereof, comprising a mask body, wherein an inhalation valve and an exhalation valve are distributed below the mask body close to a nasal hole site, an inhalation bag and an exhalation bag are correspondingly arranged outside the mask body around the inhalation valve and the exhalation valve, and the inhalation bag is connected to an air outlet of a fresh air machine of a first mask through an inhalation tube; the breathing bag is connected to the air exhaust port of the fresh air machine of the second mask through an air exhaust pipe; the structure motor drive's of first gauze mask new trend machine fan organism, ultraviolet lamp, grid, gauze mask filter layer, air inlet net rack, the structure of second gauze mask new trend machine is similar with first gauze mask new trend machine. The invention has the advantages that the mask worn by medical care personnel is safer, does not feel suffocated, has no water vapor, does not leak outside air at the edge, and has long service life.

Description

Mask and oxygen mask, goggles and protective mask based on principle of mask

Technical Field

The invention relates to a mask and an oxygen mask, goggles and a protective mask based on the principle of the mask, and belongs to medical supplies.

Background

At present, the production lines of mask machines are more in China and even in the world, but the development of the mask protection technology is less. The existing mask has the following problems: 1. breath holding: the pores capable of filtering the virus are very small and take effort both for exhalation and inhalation. 2. The edge is not tight: the air leakage between the edge of the mask and the outside is difficult to avoid in long-term activities. 3. Disposable: the mask can be used for only one day, and the function is lost, so the using time is too short. 4. The patient wears a mask: the patient is difficult to breathe because the fabric is dense, and the virus is exhaled and inhaled, so that the virus with stronger infectivity is easily optimized. It would be desirable if a mask could be designed that would eliminate the above-mentioned disadvantages.

Disclosure of Invention

The invention aims to provide a mask and an oxygen mask, goggles and a protective mask based on the principle of the mask, and the mask has the following advantages: 1. the medical staff wears the mask 100% safe; 2. the feeling is not suffocated, and the feeling is basically as easy as that of wearing no mask; 3. no moisture is present; 4. the edge cannot enter the outside air; 5. the mask can be used for a long time; 6. when the patient wears the respirator, the gas exhaled from the mouth to the atmosphere is disinfected, and the gas which does not harm other people is inhaled without effort.

The technical scheme adopted by the invention for solving the technical problem is as follows: a mask and oxygen mask, goggles and protective mask based on its principle, including the mask body, the said mask body surrounds the mouth and nose and leaves the space not contacting with mouth and nose above the mouth and nose, tie behind the ear or behind the brain with the string, nylon rope or elastic cord, distribute two breather valves in the said mask body close to the inferior part of nasal hole site, wherein the gas direction of a breather valve is to flow into the said mask body and call the inspiratory valve, the gas direction of another breather valve is to flow out of the said mask body and call the expiratory valve, there are rubber rings in the juncture position of the said inspiratory valve, expiratory valve and said mask body, carry on the removable installation with the said mask body through the screw thread or spring buckle; the mask body is distributed with emergency valves above the positions close to the nostrils, and the emergency valves are structurally divided into an inner layer and an outer layer: the inner layer close to the face is a mask fixed on the inner frame of the emergency valve at the periphery, the outer layer exposed outside is a sealed emergency valve cover arranged on the outer frame of the emergency valve through screw threads or spring buckles, and the inner frame and the outer frame of the emergency valve are detachably arranged through rubber rings at the junction position of the screw threads or the spring buckles and the mask body; the emergency valve cover and the outer frame are in threaded connection as if the emergency valve cover and the outer frame are in connection as if a common beverage bottle opening and a bottle cap are in connection, the spring buckle is in connection as if one end of a straight elastic steel wire is inserted into the fixing hole, the middle of the straight elastic steel wire is pressed on the object to be fixed, and the other end of the straight elastic steel wire is inserted into the other fixing hole as if; alternatively, the spring snap connection may be as if it were a snap to secure a car air filter cartridge. The rest of the screw thread or spring snap connection relationship is the same as the present example. The emergency valve is airtight at ordinary times, and when respiratory system broke down, opened urgent valve gap, the face guard body was used as ordinary gauze mask temporary emergency. The air suction valve is connected with an air suction bag in a sealing way, and the air suction bag is connected to an air outlet of a fresh air fan of the first mask through an air suction pipe; a cylindrical filter is disconnected and connected in the middle of the air suction pipe, the cylindrical filter has a detachable sealing structure similar to a screw thread of a beverage bottle cover, and activated carbon is filled in the cylindrical filter; the exhalation valve is hermetically connected with an exhalation bag, and the exhalation bag is connected to an exhaust opening of a fresh air machine of a second mask through an exhaust pipe; the middle of the exhaust tube is disconnected with another cylindrical filter, the cylindrical filter is provided with a detachable sealing structure similar to the thread of a beverage bottle cover, and a drying agent is filled in the cylindrical filter; the first mask fresh air machine is structurally characterized in that a motor-driven fan body is provided, a fresh air outlet of the fan body is provided with an air outlet, an ultraviolet lamp is fixed in an air inlet space outside an impeller shaft of the fan body, a reflector is fixed in the fan body along the long tube direction of the ultraviolet lamp, a grid, a mask filter layer and an air inlet net rack are arranged outwards along the air inlet direction, and the mask filter layer, the grid and the fan body are fixed into a whole by the aid of a plurality of screws or spring buckles of the air inlet net rack to form the first mask fresh air machine; the second mask fresh air machine is structurally characterized in that a fan body driven by a motor is provided, the fan body is provided with an air exhaust port, an ultraviolet lamp is fixed in an air outlet space outside an impeller shaft of the fan body, a reflector is fixed in the fan body along the long tube direction of the ultraviolet lamp, a grid, a mask filter layer and an air outlet net rack are arranged outwards along the air outlet direction, and the mask filter layer, the grid and the fan body are fixed into a whole to form the second mask fresh air machine by the air outlet net rack provided with a plurality of screws or spring buckles; the mask body is provided with a first air curtain pipe at a closed curve position where the mask body is contacted with the face, and the air curtain pipe is structurally characterized in that a row of rectangular thin holes are formed in the pipe wall of one air transmission pipe along the axial direction, and the positions of the rectangular thin holes are towards the face position on the outer edge of the mask body; a second air curtain pipe is arranged at the position of a closed curve of the goggles, which is in contact with the eye socket part, the air curtain pipe is structurally characterized in that a row of rectangular thin holes are formed in the pipe wall of one air transmission pipe along the axial direction, the rectangular thin holes are arranged at the positions which are towards the face position of the outer edge of the goggles, two positions towards two lenses are arranged in the goggles, each position is provided with a pipe orifice for blowing air to the lens, the other ends of the two pipes for blowing air to the lens are connected in parallel and then connected to an air outlet of a third mask fresh air fan, the structure of the third mask fresh air fan is the same as that of the first mask fresh air fan, and the power of the third mask fresh air fan is possibly different; the three mask fresh air fans can be of a centrifugal fan, an axial flow fan and a mixed flow fan; in order to facilitate disassembly and update of the mask filter layer in the fan, the connection between the fan body and the air inlet net rack or the air outlet net rack is recommended to be connected by using a spring buckle; the exhalation valve, the inhalation valve, the emergency valve and the like are designed to be detachable, so that the aim of updating is facilitated, and the aim of using the emergency valve for a long time is achieved. The volume and the power of the fresh air machine of the three masks can be very large, and enough air outlets and air pumping ports are arranged on the fresh air machine, so that a machine can drag a plurality of masks, such as a plurality of masks, goggles and protective masks of a room or even a layer of building. The protective mask is in an appearance shape like a transparent plastic barrel which is reversely buckled on the head, is hard at the top and thin and soft at the periphery, a circle of third air curtain pipes are arranged inside the top end of the protective mask along the periphery, the air curtain pipes are structurally characterized in that a row of rectangular thin holes are formed in the pipe wall of one air conveying pipe along the axial direction, the positions of the rectangular thin holes are punched down, and the third air curtain pipe is connected to the other air outlet of a fresh air fan of a third mask; when necessary, the protective mask can be removed, even the protective mask and the goggles are removed, and only the mask is reserved for use; when the oxygen mask is used as an oxygen mask, the air suction pipe is directly connected with the oxygen pipe, and the first mask fresh air machine and the third mask fresh air machine are removed. The sizes and the structures of the air suction bag and the air exhaling bag are the same, and the installation positions of the air suction bag and the air exhaling bag are as follows: the mask body can be installed nearby, the air suction bag is installed on the outer side of the mask body in a surrounding mode of the air suction valve, the exhalation bag is installed on the outer side of the mask body in a surrounding mode of the exhalation valve, a protruding frame matched with the contact edge of the air suction bag and the exhalation bag is arranged on the mask body, and the air suction bag, the exhalation bag and the protruding frame are detachably installed on the mask body through screw threads or spring buckles; the mounting positions of the air suction bag and the breathing bag can also be arranged on the top of the head, a light round container is arranged, the downward three-dimensional shape of the round container is a hat which is worn on the head, convex-concave hasps with adjustable lengths are arranged on the circumference of the hat, the upper part of the hat is a barrel-shaped container which is divided into a left half and a right half, wherein one half stores the air suction bag, and the other half stores the breathing bag; the installation positions of the air suction bag and the air exhaling bag can be also put together with the fresh air machine, the power supply and the control panel of the mask, and the container for storing the air suction bag and the air exhaling bag is in a square shape at the moment; and a pair of distance measuring induction elements such as an infrared transmitting-receiving tube, a laser transmitting-receiving tube, an ultrasonic transmitting-receiving tube, a Hall proximity sensor and a coil transmitting-coil receiving sensor which are used for reflecting the shape variables of the air suction bag and the air exhaling bag are respectively arranged at the positions with large shape variables of the air suction bag and the air exhaling bag, and the distance measuring induction elements control the air flow generated by a driving fan of a corresponding motor through an amplifying comparison control circuit. The mask body, the expiration pipe, the inspiration pipe, the air curtain pipe and the lens washing pipe are made of soft and elastic non-toxic chemical materials or natural materials such as polyvinyl chloride, ultra-low density polyethylene, high-performance polyolefin thermoplastic elastomer, silica gel and natural rubber, the mask body can also be made of hard plastic materials, or the middle of the mask body is made of hard plastic materials, the edge of the mask body is made of soft elastic materials, and the inspiration bag and the expiration bag are made of polyurethane and latex materials; the connection of the expiration pipe, the inspiration pipe, the air curtain pipe and the lens washing pipe with the mask body, the goggles, the protective mask and the mask fresh air machine is connected by inserting thin and hard pipes with convex rings at the outer edges. The air suction bag and the air exhaling bag are made of polyurethane and latex; the connection of the expiration pipe, the inspiration pipe, the air curtain pipe and the lens washing pipe with the mask body, the goggles, the protective mask and the mask fresh air machine is connected by inserting thin and hard pipe columns with convex rings at the outer edges. For long service life and convenient installation, the positions of the exhalation valve, the inhalation valve and the mask body which do not contact with the human face can also be made of hard plastic, nylon or metal materials. The amount of breathing air of a person is about 500 ml, so that the volume of each air bag is 1000 ml. The expiratory valve and the inspiratory valve have a threshold value, and can be opened only by actually breathing and inhaling, and a small spring is added on the valve. Generally, the diameter of the air pipe is about 1 cm, so the diameter of the air suction pipe and the air exhaust pipe is about 1 cm. The working principle of the invention is as follows: 1. in order to solve the problem of breath holding through a mask layer, a fan is used for conveying intake air to an inspiration bag, and expiration air is pumped away by the expiration bag through another fan. The air of the breathing bag or the breathing bag breathes by a person, a thin rubber air bag film is separated from the outside air, the thickness shape of the film is similar to that of a condom, the air pressure of breathing by the person is equal to the external atmospheric pressure, and the breathing of the person is not strenuous. 2. In order to prevent the mask from having moisture, a nontoxic drying agent or active carbon is added below the air suction bag and the air expiration bag to absorb moisture, and the absorbed drying agent and the absorbed active carbon can be replaced. 3. In order to prevent the edges of the mask, goggles and face guard from entering the outside air, air curtains are added around the mask, goggles and face guard as air curtains at the doorways of the shopping mall. 4. In order to enable the invention to be used for a long time, the quick-wear part is made into a detachable part, and the quick-wear part is replaced in time after the service life is up. 5. The mask blower is added in the application of expiration, so that even if a patient wears the mask blower, the gas exhaled from the mouth to the atmosphere is disinfected, and fresh gas is inhaled, so that no effort is required. 6. For safety, the mask filter layer of the mask fresh air machine is not provided with one layer, when two N95 mask filter layers are added, the breathing difficulty of the two layers of breathing mask filter layers is increased for people, but the problem for a machine is solved, and the realization can be very convenient as long as the power is increased. 7. In order to further enhance the disinfection effect, not only the mask layer is used for filtering disinfection, but also ultraviolet disinfection is used, and the ultraviolet disinfection lamp is an ozone-free disinfection lamp. 8. And a protective mask is arranged to completely kill the residual viruses, so that the medical care personnel and the users thereof are relieved. The problems about the volume, the weight and the power supply of the fresh air machine of the mask are as follows: according to a person breathing 17 times/minute, 0.8 liters each time, the flow is only 13.6 liters/minute. The fan with the diameter of several centimeters can meet the requirement of the invention by adding the allowance, so the linearity of one new fan of the mask is less than ten centimeters, and the invention has three new fans of the mask, namely an air suction bag, an exhalation bag, a power supply and a control panel are all integrated, the estimated volume is about 3 liters, the estimated weight is about 1 jin, and the new fans can be arranged in a satchel and a knapsack to be carried about. The power supply uses the convenience of a rechargeable battery, the direct current power supply of a fan motor and a control panel is recommended to be 5-12V, a charging socket is reserved outside a satchel and a backpack, and the fan motor and the control panel cannot be used by adding commercial power for a long time in hospitals and families.

The mask has the advantages that medical workers can wear the mask safely, and the mask is not suffocated when wearing the mask and is basically as easy as the mask which is not worn; no water vapor exists in the mask; the edge cannot enter the outside air; the mask can be used for a long time; when the patient wears the mask, the air exhaled from the mouth to the atmosphere is virus-free air, and the breathing is not strenuous when the mask is worn.

Drawings

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

Fig. 1 is a schematic view of the mask body and accessories.

Fig. 2 is a schematic view of the structure of the fresh air machine and accessories of the mask.

Fig. 3 is a schematic structural view of the inhalation and exhalation capsules being mounted on a human head.

Fig. 4 is a schematic structural view of the goggles.

Fig. 5 is a schematic view of the structure of the respirator.

FIG. 6 is a schematic diagram of an infrared transmission-reception control motor circuit.

In the figure, 1.. mask body, 2. string, nylon string or elastic band, 3. inhalation valve, 4. exhalation valve, 5. emergency valve, 6. mask, 7. emergency valve cover, 8. inhalation bag, 9. exhalation bag, 10. first mask fresh air machine, 11. blower body, 12. column filter, 13. screw thread, 14. air exhaust opening, 15. blower body, 16. impeller, 17. ultraviolet lamp, 18. grille, 19. mask filtering layer, 20. air inlet net frame, 21. spring buckle, 22. second mask fresh air machine, 23. second blower body, 24. air outlet net frame, 25. motor, 26. air pipe, 27. rectangular small hole, 28. pipe orifice, 29. circular hard shell, 30. air curtain pipe, 31. barrel-shaped transparent film, 32. support, 33. hat supporting ring, 34. hat, 35. circular container, 36. circular container, 37. male and

female snap fasteners

38, 39 distance measuring sensing elements 40 protruding rings.

Detailed Description

Fig. 1 is a structural diagram of a mask body 1 and its accessories, the mask body 1 is tied to the back of the ear or the brain by a string, a nylon rope or an elastic band 2, an inhalation valve 3 and an exhalation valve 4 are fixed on the position of the mask body close to the nostril through a screw thread or a spring buckle, the mask body is provided with an emergency valve 5, and the structure of the emergency valve 5 is divided into an inner layer and an outer layer: the inlayer that is close to the people's face is the gauze mask 6 of fixing the border in the emergency valve all around, exposes outer skin for installing sealed emergent valve gap 7 at the emergency valve outline through screw line or spring buckle, and the emergency valve outline is inlayed on the face guard body 1. The air suction valve 3 is connected with an air suction bag 8 in a sealing way, the air suction bag 8 is connected with an air outlet 11 of a fresh air machine 10 of a first mask through an air suction pipe, as shown in figure 2, a cylindrical filter 12 is disconnected and connected in the middle of the air suction pipe, the cylindrical filter 12 has a detachable sealing structure similar to a screw thread 13 of a beverage bottle cover, and activated carbon is filled in the cylindrical filter 12. In fig. 1, the expiratory valve 4 is hermetically connected with an expiratory bag 9, and the expiratory bag 9 is connected to an air exhaust port 14 of a fresh air machine of the second mask in fig. 2 through an air exhaust pipe; another cylindrical filter 12 is disconnected in the middle of the exhaust tube, and the cylindrical filter 12 has a detachable sealing structure similar to a screw thread 13 of a beverage bottle cover, and a drying agent is filled in the cylindrical filter 12. Therefore, the air inhaled into the human body is further purified, the moisture in the exhaled air is adsorbed into the desiccant, and the desiccant and the active carbon can be replaced.

In fig. 2, the first mask fresh air machine 10 is structured by a motor-driven fan body 15, an ultraviolet lamp 17 is fixed in the fan body 15 in an air inlet space at the axial outer side of an impeller 16 of the fan body 15, a light reflecting plate is fixed in the fan body along the long tube direction of the ultraviolet lamp, a grille 18, a mask filter layer 19 and an air inlet net rack 20 are arranged outwards along the air inlet direction, and the air inlet net rack is provided with a plurality of screws or spring buckles to fix the mask filter layer, the grille and the fan body into a whole to form the first mask fresh air machine 10; the spring buckle is various, and the spring buckle applied to the air inlet of a tractor or a car is shown as 21 in figure 2. the structure of the second mask fresh air fan 22 is that a second fan body 23 driven by a motor 25 is provided, and because most parts are the same as the first mask fresh air fan 10, the serial number of the first mask fresh air fan 10 is used; the second mask fresh air machine 22 is provided with an air exhaust port 14, an ultraviolet lamp 17 is fixed in the air outlet space at the axial outer side of an impeller 16 of the second air machine body 23, a reflector is fixed in the air machine body along the long tube direction of the ultraviolet lamp 17 and is not shown, a grating 18, a mask filter layer 19 and an air outlet net rack 24 are outwards arranged along the air outlet direction, and the air outlet net rack 24 is provided with a plurality of screws or spring buckles 21 to fix the mask filter layer 19, the grating 18 and the second air machine body 23 into a whole to form the second mask fresh air machine 22. In fig. 1, at the closed curve position where the mask body 1 contacts with the face, there is a first air curtain pipe, the structure of the air curtain pipe is shown in the lower right drawing of fig. 3, two straight and curved air curtain pipes are drawn, the structure of the air curtain pipe is that a row of rectangular thin holes 27 are arranged on the pipe wall of an air pipe 26 along the axial direction, the position of the rectangular thin holes 27 is towards the face position of the outer edge of the mask body 1, and the purpose is that the air at the outer edge can not enter the mask body 1. The closed curve position of the goggles contacting with the orbit position is provided with a second air curtain pipe structure shown in figure 4, and the second air curtain pipe and a third air curtain pipe below are both structurally the same as the first air curtain pipe and play a role of an air curtain and preventing external air from entering the interior. In fig. 4, a rectangular thin hole 27 surrounds the eye socket on the second air curtain pipe, two positions of the goggles towards two lenses are respectively provided with a nozzle 28 for blowing wind to the lenses, the other ends of the two pipes for blowing the wind to the lenses are connected in parallel, then Q1 is connected in parallel with an inlet Q2 of the second air curtain pipe and then connected to an air outlet of a fresh air fan of a third mask, the structure of the fresh air fan of the third mask is the same as that of the fresh air fan of the first mask, the power of the fresh air fan of the third mask is possibly different, and the fresh air fan of the third mask is not shown in the drawing. In fig. 2, the structure of the second mask fresh air machine 22 on the lower left side is a centrifugal fan, a fan volute, a wind tongue and a gas collection fan cover are not drawn, the first mask fresh air machine 10 on the lower right side is an axial flow fan, the power of the axial flow fan is not large, the air flow required for breathing of a person is small, and a general CPU fan can be found to be suitable, and the diameter of the general CPU fan is only a few centimeters.

The protective mask is structurally shown in fig. 5 and is shaped like a transparent plastic barrel which is buckled upside down and has a hard top and a thin and soft periphery, the top is a round hard shell 29, a circle of third air curtain pipes 30 are arranged below the round hard shell 29 along the periphery, rectangular thin holes of the air curtain pipes 30 are punched downwards, a barrel-shaped transparent film 31 is downwards surrounded on the periphery of the round hard shell 29, a plurality of supports 32 are arranged below the round hard shell 29 and fixed on a cap support ring 33, the cap support ring 33 is fixed on a cap 34, and after people wear the cap, fresh air of the air curtain pipes 30 fills the interior of the barrel-shaped transparent film 31. The respirator of figure 5 is worn close together with the mask of figure 1, with the inhalation and exhalation bladders 6, 7 mounted on the mask body 1. If the mounting positions of the inhalation and exhalation bladders are also on the top of the head, as shown on the left side of fig. 3, the mask of fig. 5 is fixed to the top of fig. 3, and the bracket 32, the cap support ring 33 and the cap 34 are omitted. In the left figure of fig. 3, there is a light round container 35, the downward three-dimensional shape of the round container is a helmet 36 for wearing, the circumference of the helmet 36 is provided with a convex-concave buckle 37 with adjustable length, the round container 35 is divided into left and right halves towards the upper part, one half of the round container is used for storing the inhalation bag 6, and the other half is used for storing the exhalation bag 7. The positions with large deformation of the inspiration bag 6 and the expiration bag 7 are respectively provided with a pair of distance measuring

induction elements

38 and 39 such as an infrared transmitting-receiving tube, a laser transmitting-receiving tube, an ultrasonic transmitting-receiving tube, a Hall proximity sensor and a coil transmitting-coil receiving sensor which are used for reflecting the deformation of the inspiration bag and the expiration bag, and the distance measuring induction elements control the air flow generated by a driving fan of a corresponding motor through an amplifying comparison control circuit. The control circuit is various and only a few of the control circuits are simple and easy to understand. Fig. 6 shows an infrared transmitting-receiving control motor circuit, when the inhalation bag 6 and the exhalation bag 7 are deflated, the transmitting light-emitting tube 38 is close to the receiving tube 39, the accumulated voltage on the capacitor C is high, so that the currents of the transistors T1 and T2 become large, and the fan motor 25 becomes fast. Different people can adjust the air inflow by adjusting R1 or R2 according to different breathing volumes. The connection of the expiration pipe, the inspiration pipe, the air curtain pipe and the lens washing pipe with the mask body, the goggles, the protective mask and the mask ventilator is connected by inserting thin and hard pipes with convex rings at the outer edges, and the convex rings are shown in the position 40 in figure 2.

Claims

1. A mask and oxygen mask, goggles and protective mask based on the principle thereof, comprising a mask body, wherein the mask body surrounds the mouth and nose and a space which is not contacted with the mouth and nose is reserved above the mouth and nose, and the mask is tied behind the ears or behind the brain by a string, a nylon rope or an elastic band, and is characterized in that: two breather valves are distributed below the mask body close to the nasal hole, wherein the direction of the gas of one breather valve is the direction of the gas flowing into the mask body and is called as an inhalation valve, the direction of the gas of the other breather valve is the direction of the gas flowing out of the mask body and is called as an exhalation valve, rubber rings are arranged at the junction positions of the inhalation valve, the exhalation valve and the mask body, and the rubber rings and the mask body are detachably mounted through screw threads or spring buckles; the mask body is distributed with emergency valves above the positions close to the nostrils, and the emergency valves are structurally divided into an inner layer and an outer layer: the inner layer close to the face is a mask fixed on the inner frame of the emergency valve, the exposed outer layer is a sealed emergency valve cover arranged on the outer frame of the emergency valve through screw threads or spring buckles, and the inner frame and the outer frame of the emergency valve are detachably arranged through rubber rings at the junction position of the screw threads or the spring buckles and the mask body; the air suction valve is connected with an air suction bag in a sealing way, and the air suction bag is connected to an air outlet of a fresh air fan of the first mask through an air suction pipe; a cylindrical filter is disconnected and connected in the middle of the air suction pipe, the cylindrical filter has a detachable sealing structure similar to a screw thread of a beverage bottle cover, and activated carbon is filled in the cylindrical filter; the exhalation valve is hermetically connected with an exhalation bag, and the exhalation bag is connected to an exhaust opening of a fresh air machine of a second mask through an exhaust pipe; the middle of the exhaust tube is disconnected with another cylindrical filter, the cylindrical filter is provided with a detachable sealing structure similar to the thread of a beverage bottle cover, and a drying agent is filled in the cylindrical filter; the first mask fresh air machine is structurally characterized in that a motor-driven fan body is provided, a fresh air outlet of the fan body is provided with an air outlet, an ultraviolet lamp is fixed in an air inlet space outside an impeller shaft of the fan body, a reflector is fixed in the fan body along the long tube direction of the ultraviolet lamp, a grating, a mask filter layer and an air inlet net rack are arranged outwards along the air inlet direction, and the mask filter layer, the grating and the fan body are fixed into a whole by the air inlet net rack through a plurality of screws or spring buckles to form the first mask fresh air machine; the second mask fresh air machine is structurally characterized in that a fan body driven by a motor is provided, the fan body is provided with an air exhaust port, an ultraviolet lamp is fixed in an air outlet space outside an impeller shaft of the fan body, a reflector is fixed in the fan body along the long tube direction of the ultraviolet lamp, a grating, a mask filter layer and an air outlet net rack are arranged outwards along the air outlet direction, and the mask filter layer, the grating and the fan body are fixed into a whole by the air outlet net rack through a plurality of screws or spring buckles to form the second mask fresh air machine; a first air curtain pipe is distributed at the closed curve position where the mask body is contacted with the face, and the structure of the air curtain pipe is that a row of rectangular thin holes are formed in the pipe wall of one air transmission pipe along the axis direction, and the position of each rectangular thin hole is towards the face position at the outer edge of the mask body; a second air curtain pipe is distributed at the position of a closed curve of the goggles, which is in contact with the eye socket part, and the second air curtain pipe has the structure that a row of rectangular thin holes are formed in the pipe wall of one air transmission pipe along the axis direction, the positions of the rectangular thin holes are towards the face position at the outer edge of the goggles, two air pipe openings for blowing air to the lenses are formed in the positions towards the two lenses in the goggles respectively, the other ends of the air pipes for blowing the air to the lenses are connected in parallel and then connected to an air outlet of a new air blower of a third mask, and the new air blower of the third mask has the same structure as that of the new air blower of the first mask, and the power of the new air blower of the third mask is possibly different; the three mask fresh air fans can be of a centrifugal fan, an axial flow fan or a mixed flow fan; the protective mask is in an appearance shape like a transparent plastic barrel which is reversely buckled on the head, is hard at the top and thin and soft at the periphery, a circle of third air curtain pipes are arranged inside the top end of the protective mask along the circumference, the structure of each air curtain pipe is that a row of rectangular thin holes are formed in the pipe wall of one air conveying pipe along the axial direction, the positions of the rectangular thin holes are punched down, and the third air curtain pipe is connected to the other air outlet of a fresh air fan of a third mask; when necessary, the protective mask can be removed, even the protective mask and the goggles are removed, and only the mask is reserved for use; when the novel oxygen mask is used as an oxygen mask, the air suction pipe is directly connected to the oxygen pipe, and the first mask fresh air fan and the third mask fresh air fan are removed; the volume and the power of the fresh air machine of the three masks can be made to be very large, and the fresh air machine is provided with enough air outlets and air pumping ports, so that a machine can drag a plurality of masks, goggles and protective masks, such as a plurality of masks, goggles and protective masks of a room or even a layer of building.

2. The mask according to claim 1, and an oxygen mask, goggles and a face mask based on the principle thereof, wherein: the sizes and the structures of the air suction bag and the air exhaling bag are the same, and the installation positions of the air suction bag and the air exhaling bag are as follows: the mask body can be installed nearby, the air suction bag is installed on the outer side of the mask body in a surrounding mode of the air suction valve, the exhalation bag is installed on the outer side of the mask body in a surrounding mode of the exhalation valve, a protruding frame matched with the contact edge of the air suction bag and the exhalation bag is arranged on the mask body, and the air suction bag, the exhalation bag and the protruding frame are detachably installed on the mask body through screw threads or spring buckles; the installation positions of the air suction bag and the air breathing bag can also be arranged on the top of the head, a light round container is arranged, the downward three-dimensional shape of the round container is a helmet, convex-concave buckles capable of adjusting the circumference are arranged on the circumference of the helmet, the barrel-shaped container is arranged above the helmet and divided into a left half and a right half, wherein one half stores the air suction bag, and the other half stores the air breathing bag; the installation positions of the air suction bag and the air exhaling bag can be also put together with the fresh air machine, the power supply and the control panel of the mask, and the container for storing the air suction bag and the air exhaling bag is in a square shape at the moment; and a pair of distance measuring induction elements such as an infrared transmitting-receiving tube, a laser transmitting-receiving tube, an ultrasonic transmitting-receiving tube, a magnet-Hall proximity sensor and a coil electromagnetic transmitting-coil receiving sensor which are used for reflecting the shape variables of the air suction bag and the air exhaling bag are respectively arranged at two ends of the positions with large shape variables of the air suction bag and the air exhaling bag, and the distance measuring induction elements control the air flow generated by a fan driven by a corresponding motor through an amplification comparison control circuit board.

3. The mask according to any one of claims 1 or 2, and an oxygen mask, goggles and a face mask based on the principle thereof, wherein: the mask body, the expiration pipe, the inspiration pipe, the air curtain pipe and the circular lens washing pipe are made of soft and elastic non-toxic chemical materials or natural materials such as polyvinyl chloride, ultra-low density polyethylene, high-performance polyolefin thermoplastic elastomer, silica gel and natural rubber, the mask body can also be made of hard plastic materials, or the middle part of the mask body is made of hard plastic materials, the edge of the mask body is made of soft elastic materials, and the inspiration bag and the expiration bag are made of polyurethane and latex materials; the connection of the expiration pipe, the inspiration pipe, the air curtain pipe and the lens washing pipe with the mask body, the goggles, the protective mask and the mask fresh air machine is connected by inserting thin and hard pipes with convex rings at the outer edges.