CN116650856A

CN116650856A - Long duration and long-term filterable split type fresh air mask device

Info

Publication number: CN116650856A
Application number: CN202010126120.1A
Authority: CN
Inventors: 唐腊辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2023-08-29

Abstract

The invention relates to a split type fresh air mask device with long endurance and long-acting filtration, which comprises a mask main body, a wearing belt body, a fresh air active air supply mechanism and a storage battery mechanism, wherein a left bayonet seat, a right bayonet seat and a one-way exhaust valve are respectively arranged at the left lower side, the right lower side and the middle position of the mask main body, and an air bag blocking supporting edge is also arranged on the edge of the mask main body; the fresh air active air supply mechanism can be conveniently installed on the left bayonet seat in a detachable mode, the storage battery mechanism can be conveniently installed on the right bayonet seat in a detachable mode, an electric wire is connected between the storage battery mechanism and the fresh air active air supply mechanism, and a three-way micro valve is further arranged on the mask main body and used for achieving switching of air supply to the air bag and the mask. The product is convenient for cleaning and sterilizing the mask main body independently, enables the mask to keep sanitary and clean, can replace the mask main body, reduces the use cost of users, and has the advantages of strong battery endurance, long service cycle of the filter disc, convenient assembly and disassembly, dust resistance, odor isolation, good germ resistance effect and the like.

Description

Long duration and long-term filterable split type fresh air mask device

Technical Field

The invention relates to the field of mask products, in particular to a mask device with active clean air delivery function.

Background

At present, the mask device with the function of actively conveying clean air on the market mainly comprises a mask main body, a wearing belt body and a fresh air active air supply mechanism arranged at the middle position of the front face of the mask main body, wherein the fresh air active air supply mechanism comprises a shell, a cover shell, a micro fan, a storage battery and a filter plate, the whole fresh air active air supply mechanism can be disassembled and assembled except the cover shell and the filter plate, so that a user can conveniently replace the filter plate, other parts are fixed with the mask main body into a whole, and the user cannot disassemble and assemble in the daily use process.

A mask assembly of the type described above has been found to have the following drawbacks in practice:

firstly, the mask product of the type is designed with a replaceable air filter sheet, and the main purpose is to facilitate repeated use of people and reduce the daily mask purchase cost; however, the fresh air active air supply mechanism and the mask main body are designed into a whole, so that the mask main body cannot be cleaned and disinfected, and the daily health condition of the mask is greatly influenced.

Secondly, the storage battery and the filter plate are integrated on the same shell, so that the capacity of the storage battery and the service cycle of the filter plate are influenced by the volume and the size of the whole fresh air active air supply mechanism, the capacity of the battery cannot be improved within a reasonable volume range, and the specification of the filter plate is designed to be larger, so that the battery endurance of the mask is shorter in daily application, and the service time of the mask in production activities is greatly influenced; the filter disc is too small in specification, so that the service cycle is short, frequent replacement is required, and the daily application cost of people is increased.

Thirdly, when the mask main body is damaged or aged, people cannot only replace the mask main body independently, only the whole mask can be scrapped, the mask use cost of people is greatly increased, and the mask is greatly wasted and is not environment-friendly.

Fourthly, the soft edges made of soft rubber materials are used as barriers on the peripheral edges of the mask main body, so that the fitting degree between the peripheral edges of the mask and the human face is poor, dust and smell still easily enter the inner cavity of the mask from gaps and gaps between the peripheral edges of the mask and the human face, and the effect of truly isolating the dust and the smell cannot be achieved; the soft rubber edge on the mask main body is very easy to cause the face of the human body to leave an indentation when worn for a long time, so that the blood of the face of the human body is not smooth, and the appearance and health of the human body are affected.

Fifth, the active fresh air supply mechanism is integrally arranged in the middle of the mask body, and all functional modules are concentrated together, so that the whole size of the active fresh air supply mechanism is large, and when the mask is worn on the face, the active fresh air supply mechanism can also cause partial sight shielding, influence daily production activities of people, and cause great inconvenience to people.

Accordingly, in response to the above-identified problems with prior art mask products having active delivery of clean air, the applicant has recognized that there is a great need for an improved mask product that better meets the needs of individuals and that contributes to their physical and mental health.

Disclosure of Invention

The invention aims to solve the problems and the defects, and provides the split fresh air mask device which is convenient to clean and disinfect the mask main body independently, is beneficial to keeping the mask clean, is convenient to replace the mask main body, reduces the use cost of a user, has strong battery endurance, long service cycle of a filter sheet, is convenient to assemble and disassemble, does not block the sight, has good tightness, has good effects of dust and odor resistance and germ resistance, and is comfortable and easy to wear.

The technical scheme of the invention is realized as follows: the split type fresh air mask device for long endurance and long-acting filtration comprises an integrated mask main body, a wearing belt body, a fresh air active air supply mechanism and a storage battery mechanism, wherein the integrated mask main body consists of a transparent glasses part and a mask part; the fresh air active air supply mechanism comprises a bottom shell, a cover shell, a micro fan, a filter disc support and an air outlet pipe, wherein the bottom shell is provided with a concave cavity groove, and one end of the air outlet pipe is arranged outside the bottom shell and is communicated with the concave cavity groove; the groove wall of the concave cavity groove is also provided with a nesting step and a fixing step respectively, and the fixing step is also provided with a screw hole; the periphery side of the micro fan is also provided with lugs with through holes, the micro fan is embedded in the nesting steps, the lugs are supported on the fixing steps and are arranged in alignment with the screw holes, and the micro fan is fixedly arranged in the concave cavity groove by locking screws into the screw holes from the through holes of the lugs; the filter disc support is provided with a concave cavity hole for embedding the filter disc, a screw hole site is also arranged on the cavity wall of the concave cavity hole, a screw locking hole is correspondingly arranged on the fixing step, the filter disc support is embedded on the fixing step in the concave cavity groove, and the filter disc support is fixedly arranged in the concave cavity groove by locking the screw into the screw locking hole from the screw hole site; the filter plate is embedded in the concave cavity hole of the filter plate bracket; the cover shell is also provided with grid holes, and is screwed on the bottom shell so as to limit the top pressure of the filter disc in the concave cavity holes; the side surface of the bottom shell is also provided with a clamping protrusion, the left bayonet seat is correspondingly provided with a locking groove, and the fresh air active air supply mechanism is conveniently arranged on the mask main body in a detachable manner through locking the clamping protrusion of the bottom shell and the locking groove of the left bayonet seat; the storage battery mechanism comprises a shell, a face cover, a storage battery, a circuit board and an operation switch, wherein a battery accommodating cavity is formed in the shell above the battery accommodating cavity, and a cavity for accommodating the circuit board is formed in the shell; the surface cover is correspondingly provided with an accommodating groove, and a fixing stud is arranged in the accommodating groove; the storage battery is arranged in the battery accommodating chamber, the circuit board is locked on the fixing stud through a screw to be fixed in the accommodating groove of the face cover, the operation switch is connected with the circuit board, and the operation switch is embedded in a switch hole position arranged on the face cover; the surface cover is arranged on the shell, and the circuit board is correspondingly embedded in the cavity; the side surface of the shell is also provided with a clamping protrusion, the right bayonet seat is correspondingly provided with a locking groove, and the storage battery mechanism is conveniently arranged on the mask main body in a detachable manner through locking the clamping protrusion of the shell and the locking groove of the right bayonet seat; an electric wire is also connected between the storage battery mechanism and the fresh air active air supply mechanism; the other end of the air outlet pipe is also connected with a three-way micro valve, the three-way micro valve is provided with an input port and two output ports, the input port of the three-way micro valve is connected with the other end of the air outlet pipe, one of the output ports of the three-way micro valve is connected with an air bag blocking supporting edge, and the other output port of the three-way micro valve is connected with an inner concave cavity arranged on the mask main body so as to convey clean air to the mask main body.

The invention has the beneficial effects that: the invention adopts detachable split structure design among the fresh air active air supply mechanism, the storage battery mechanism and the mask main body, so that the mask main body can be conveniently cleaned and disinfected in daily use without affecting the service life of electric parts, and the mask main body is beneficial to keeping clean and sanitary; moreover, after the mask main body is damaged or aged, the mask main body can be independently replaced without scrapping the whole mask, so that the daily use cost of a user can be effectively reduced, the waste can be reduced, the influence of electronic waste on the environment is reduced, and the environment is protected; in addition, the simple clamping structure is designed, so that the assembly and disassembly are very convenient and simple.

And two parts which are mutually independent in design are adopted for the fresh air active air supply mechanism and the storage battery mechanism, and the fresh air active air supply mechanism and the storage battery mechanism are distributed on the left lower side and the right lower side of the mask main body. Therefore, on one hand, the fresh air active air supply mechanism and the storage battery mechanism can not shade the human vision, and the daily production activities of people can not be influenced when the device is worn; on the other hand, the fresh air active air supply mechanism and the storage battery mechanism are respectively in separate designs, so that the filter disc and the battery can be made to be larger as much as possible within a reasonable volume range, and the mask can obtain longer battery endurance performance and longer effective air filtering service cycle, so that a user does not need to repeatedly charge and replace the filter disc frequently in the daily use process, the time is saved, and the production operation efficiency is improved.

And thirdly, the air bag blocking supporting edge is designed on the peripheral edge of the mask main body, and the air bag blocking supporting edge is used for being inflated and swelled to flexibly attach to the face of a human body, so that gaps are effectively prevented from being left between the face surface of the human body and the peripheral edge of the mask, the sealing performance is good, the invasion of external dust, harmful smell and bacteria is completely isolated, the nose and the mouth of the human body are always protected from freely breathing in a sealed space with clean air, and the mask has very good effects of blocking dust, blocking external smell, blocking bacteria and the like. In addition, the soft adhesive plaster with the supporting edge blocked by the air bag can not leave marks on the face in the long-time wearing process, is comfortable and easy to wear, can keep the blood circulation of the face of a human body smooth, and is beneficial to maintaining the appearance and health of the human body.

And fourthly, the fresh air active air supply mechanism is adopted to inflate the air bag blocking supporting edge, so that the use is very convenient, the air bag blocking supporting edge can be supplemented with air by utilizing the switching of the three-way micro valve according to the needs at any time, the air pressure of the air bag blocking supporting edge is regulated, and the air bag blocking supporting edge is always kept in a reasonable air pressure range, so that the use is very convenient.

The invention has simple structure, easy assembly and disassembly, high reliability of structural design, good durability and easy processing and assembly.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the mask body, the fresh air active air supply mechanism and the storage battery mechanism of the present invention in a disassembled state.

Fig. 3 is a schematic diagram of a disassembly structure of the active fresh air supply mechanism of the present invention.

Fig. 4 is a schematic diagram showing a disassembled structure of the battery mechanism of the present invention.

Fig. 5 is a schematic diagram showing a disassembled structure of a cover, a circuit board, and a flat speaker of the battery mechanism of the present invention.

FIG. 6 is a schematic diagram of a cross-sectional structure of the active fresh air supply mechanism of the present invention.

Fig. 7 is a schematic perspective view of a valve plate according to the present invention.

Fig. 8 is a schematic perspective view of a valve cover according to the present invention.

Fig. 9 is a schematic illustration of the disassembled structure between the mask body and the airbag cushion support edge of the present invention.

FIG. 10 is a schematic cross-sectional view of the air bag barrier support edge of the present invention.

Fig. 11 is a schematic view of the back structure of the mask body of the present invention.

FIG. 12 is a schematic cross-sectional view of the mask body of the present invention at the attachment of the air tap.

Detailed Description

As shown in fig. 1 and 2, the split fresh air mask device for long-duration and long-acting filtration of the present invention comprises an integrated mask body 1 composed of a transparent glasses part 11 and a mask part 12, a wearing belt body 2, a fresh air active air supply mechanism 3, a storage battery mechanism 4, and the like. In order to achieve the purpose of the invention, the left lower side and the right lower side of the mask part 12 of the mask body 1 of the invention are respectively provided with a left bayonet seat 13 and a right bayonet seat 14, and the left bayonet seat 11 and the right bayonet seat 12 are respectively designed on the left lower side and the right lower side of the front surface of the mask body 1 so as to avoid the shielding of the human visual line by the fresh air active air supply mechanism 3 and the storage battery mechanism 4 in the wearing process of the mask; and the left bayonet seat 11 and the right bayonet seat 12 are respectively arranged on the left lower side and the right lower side of the front surface of the mask main body 1, so that the whole shape and the layout of the mask main body 1 can be balanced and the appearance can be coordinated. As shown in fig. 1 and 2, a one-way exhaust valve 15 is further provided at a position at the lower side of the middle of the mask part 12 between the left bayonet mount 13 and the right bayonet mount 14, and the one-way exhaust valve 15 mainly plays a role of exhausting the exhaust gas exhausted from the human body out of the mask, and reducing the concentration of carbon dioxide in the mask.

In order to ensure that the product can be worn for a long time without leaving marks on the face, has the advantages of good fitting property, comfortable wearing and good dust and smell resisting effect, and as shown in fig. 1, 2 and 9, the peripheral edge of the back of the mask body 1 is also provided with an air bag resisting supporting edge 16 arranged along the edge. In this case, in order to enable the air bag blocking support edge 16 to be simply and reliably assembled to the edge of the mask body 1, as shown in fig. 9 and 10, the air bag blocking support edge 16 is composed of an air bag strip 161 and a fixing clip groove edge 162 disposed along the air bag strip 161, and a plurality of fixing holes 163 penetrating in the lateral direction are further provided in the fixing clip groove edge 162. When installed, as shown in fig. 9, the edges of the mask body 1 nest with the clip slot edges 162 and are clamped by inserting rivets or nuts through the attachment holes 163, i.e., as shown in fig. 1 and 2.

As shown in fig. 3 and 6, the fresh air active air supply mechanism 3 includes a bottom shell 31, a cover shell 32, a micro fan 33, a filter 34, a filter bracket 35, and an air outlet pipe 36, wherein the bottom shell 31 is provided with a concave cavity groove 311, and the air outlet pipe 36 is disposed outside the bottom shell 31 and one end of the air outlet pipe is connected with the concave cavity groove 311.

As shown in fig. 3, the groove wall of the concave groove 311 is further provided with a nesting step 312 and a fixing step 313, and the fixing step 313 is further provided with a screw hole 314; the micro fan 33 is further provided with a lug 331 with a through hole on the peripheral side, the micro fan 33 is embedded in the nesting step 312, the lug 331 is supported on the fixing step 313 and is aligned with the screw hole 314, and the micro fan 33 is fixedly installed in the concave cavity groove 311 by locking a screw into the screw hole 314 from the through hole of the lug 331. Through such structural design, make miniature fan 33 simple, reliable, firmly install in drain pan 31, equipment is simple moreover, later maintenance is convenient. Similarly, as shown in fig. 3, the filter holder 35 is provided with a concave hole 351 in which the filter 34 is embedded, a screw hole site 352 is further provided on a wall of the concave hole 351, the fixing step 313 is correspondingly provided with a screw locking hole 315, the filter holder 35 is embedded on the fixing step 313 in the concave groove 311, and the filter holder 35 is fixedly installed in the concave groove 311 by locking the screw from the screw hole site 352 into the screw locking hole 315. Next, as shown in fig. 6, the filter 34 is embedded in the concave hole 351 of the filter holder 35, and the cover 32 is further provided with a grid hole 321, so that air enters the filter 34, is filtered by the filter 34, enters the micro fan 33, and is output from the air outlet pipe 36. The cover shell 32 is screwed on the bottom shell 31 so as to limit the filter piece 34 in the concave cavity hole 351 in a pressing mode; when the filter sheet 34 is to be replaced, the cover 32 is rotated, and the filter sheet 34 can be taken out and replaced with a new one.

As shown in fig. 2, the side surface of the bottom shell 31 is further provided with a locking protrusion 5, the left bayonet seat 11 is correspondingly provided with a locking groove 6, and the fresh air active air supply mechanism 3 is conveniently and detachably mounted on the mask body 1 by locking the locking protrusion 5 of the bottom shell 31 and the locking groove 6 of the left bayonet seat 11. Through this design, in daily use, can pull down new trend initiative air feed mechanism 3, wash, disinfect the face guard main part alone and not influence the life-span of electrical components, and after the face guard main part damages or ages, can also change the face guard main part alone moreover, can reduce user's daily use cost effectively, the design has simple and easy clamping structure, installs and removes very conveniently.

As shown in fig. 4, the battery mechanism 4 includes a housing 41, a face cover 42, a battery 43, a circuit board 44, and an operation switch 45, wherein a battery accommodating chamber 411 is provided on the housing 41, and a cavity 412 accommodating the circuit board 44 is also formed in the housing 41 above the battery accommodating chamber 411; the surface cover 42 is also correspondingly provided with a containing groove 421, and a fixing stud 422 is also arranged in the containing groove 421. When the battery 43 is assembled, the battery accommodating chamber 411 is provided with the storage battery, the circuit board 44 is locked on the fixing stud 422 through a screw to be fixed in the accommodating groove 421 of the face cover 42, the operation switch 45 is connected with the circuit board 44, and the operation switch 45 is embedded in the switch hole site 423 arranged on the face cover 42; the cover 42 is placed over the housing 41, and the circuit board 44 is correspondingly inserted into the cavity 412.

As shown in fig. 2 and 4, the side surface of the housing 41 is further provided with a locking protrusion 5, the right bayonet seat 12 is correspondingly provided with a locking groove 6, and the battery mechanism 4 is conveniently and detachably mounted on the mask body 1 by locking the locking protrusion 5 of the housing 41 and the locking groove 6 of the right bayonet seat 12. Similarly, through this design, in daily use, can dismantle battery mechanism to can wash, disinfect the face guard main part alone and not influence the life-span of electrical components, in addition when the face guard main part damages or ageing the back, can also change the face guard main part alone, can reduce user's daily use cost effectively, the design has simple and easy clamping structure, and it is very convenient to install and remove.

As shown in fig. 1, an electric wire 7 is further connected between the storage battery mechanism 4 and the fresh air active air supply mechanism 3. In addition, an electric plug 71 may be further disposed on the electric wire 7, and an electric plug hole 72 is correspondingly disposed on the fresh air active air supply mechanism 3, so that separation and simple electrical connection between the storage battery mechanism 4 and the fresh air active air supply mechanism 3 can be achieved. A charging interface is also provided on the housing 41 of the battery mechanism 4.

As shown in fig. 1 and 2, the other end of the air outlet pipe 36 is further connected with a three-way micro valve 8, the three-way micro valve 8 is provided with an input port and two output ports, the input port of the three-way micro valve 8 is connected with the other end of the air outlet pipe 36, one output port of the three-way micro valve 8 is connected with the air bag blocking supporting edge 16, and the other output port of the three-way micro valve 8 is connected with the inner concave cavity 18 provided on the mask body 1 so as to realize the clean air delivery to the mask body 1. Through the design of the three-way micro valve 8, when the air bag blocking supporting edge 14 needs to be supplemented with air, the three-way micro valve 8 can be used for cutting off the air supply of the concave cavity 18 on the inner side of the mask main body 1; when the air is supplemented to the air bag blocking supporting edge 16, the air pressure of the air bag blocking supporting edge 16 is regulated; the three-way micro valve 8 is then switched back to supply air to the inboard cavity 18 of the mask body 1. When the air pressure of the air bag blocking supporting edge 16 is over saturated, the three-way micro valve 8 can be switched to be communicated with the air bag blocking supporting edge 16 by stopping the operation of the fresh air active air supply mechanism 3, so that the air pressure can be released, the released air pressure returns to the fresh air active air supply mechanism 3 and is released to the outside through the filter disc 34.

The inflation of the air bag blocking support edge 16 is not required to be too hard, and the inflation is only required to be satisfied, so that the fresh air active air supply mechanism 3 supplements air to the air bag blocking support edge 16, and the application requirement is completely satisfied. In order to facilitate the sealing connection between the air outlet pipe 36 and the mask body 1 when the mask body 1 is replaced, as shown in fig. 11 and 12, a connection air tap 10 is further provided on the mask body 1, and the connection air tap 10 is clamped on a through hole 103 provided in the mask body 1 by the cooperation of a nut 101 and a bracket 102. When connected, the air pipe can be directly sleeved with the connecting air nozzle 10, namely as shown in fig. 1.

Because the face mask of the present invention is blocked by the air bag blocking supporting edge 16, when the face mask is worn by a person, the resolution of the voice of the communication speech coming out is affected to a certain extent, and in order to facilitate the normal communication of the person during the wearing process, as shown in fig. 4 and 5, a flat speaker 46 is further disposed in the accommodating groove 421 of the face cover 42 and located on the inner side of the circuit board 44, and the flat speaker 46 is electrically connected with the circuit board 44; the bottom of the battery accommodating chamber 411 of the housing 41 is also provided with a micro microphone 47 and a concave hole 413 for installing the micro microphone 47, and the micro microphone 47 is electrically connected with the circuit board 44; the cover 42 is also provided with a mesh 424. By means of the mutual cooperation of the microphone 47 and the flat loudspeaker 46, people can communicate clearly during wearing of the product.

In order to make the structure of the one-way exhaust valve 15 simple, reliable and durable, as shown in fig. 2, 7, 8 and 11, the one-way exhaust valve 15 comprises a valve seat 151 with an inner cavity hole, a grid net 152, a valve plate 153 and a valve cover 154, wherein the valve seat 151 is arranged on the front surface of the mask main body 1 and is communicated with the inner cavity 18 of the mask main body 1, the grid net 152 is arranged in the inner cavity of the valve seat 151, the grid net 152 is also provided with an axle hole 155, the valve plate 153 is provided with a pin shaft 156, the valve plate 153 is sleeved in the axle hole 155 in a penetrating manner to be attached to the grid net 152 through the pin shaft 156, and a shielding structure is formed for the inner cavity of the valve seat 151; the valve cover 154 is covered on the valve seat 151, and a grill 152 is further provided on the bottom side of the valve cover 154 so as to exhaust air outwards. The principle of operation of this one-way exhaust valve 15 is generally as follows: when people inhale air, the valve plate 153 is attached to the grid net 152 in the valve seat 151 under the influence of the air flow motion of the inhaled air; when people spit out the gas, the gas flow is flushed outwards, and the valve plate 153 is flushed away in a proper direction, namely the gas is exhausted.

In order to facilitate wearing, firm wearing and difficult falling of the wearing belt body 2, as shown in fig. 1, the wearing belt body 2 is composed of a left belt 21 and a right belt 22, buckling holes 23 are further formed on the inner side ends of the left belt 21 and the right belt 22, buckling nails 17 are further respectively arranged on the two sides of the front surface of the mask main body 1, and the left belt 21 and the right belt 22 are respectively buckled with the buckling nails 17 through the buckling holes 23 so as to be connected with the mask main body 1. By the design, the wearing belt body 2 and the mask body 1 are convenient to assemble and disassemble, so that the wearing belt body 2 can be reused, the mask body 1 can be replaced, the replacement cost can be saved, and the emission can be reduced. As shown in fig. 1, the outer ends of the left belt 21 and the right belt 22 are respectively provided with a magic tape 24 which can be mutually adhered together, and the middle parts of the left belt 21 and the right belt 22 are respectively provided with a lug hanging hole 25. The ear-hanging hole 25 is worn on the ears of the human body to increase wearing stability.

In addition, as shown in fig. 4 and 2, the left clamping seat 11 and the right clamping seat 12 are further provided with L-shaped slots 30 respectively, and the air pipe 36 and the electric wire 7 can move along the L-shaped slots 30, so that more parts can be snapped into the left clamping seat 11 when the bottom shell 31 of the fresh air active air supply mechanism 3 is buckled with the left clamping seat 11, and more parts can be snapped into the right clamping seat 12 when the outer shell 41 of the storage battery mechanism 4 is buckled with the right clamping seat 12, and the fresh air active air supply mechanism 3 and the storage battery mechanism 4 are locked in the respective clamping seats more firmly.

The circuit board 44 of the invention can be added with a WIFI module and a Bluetooth module so as to establish communication with a smart phone and the like, and the product can be controlled to run through the APP program of the smart phone.

The above description of the structural schemes is an embodiment of the preferred embodiments of the present invention, but it does not represent a limitation of the protection scope of the technical scheme of the present invention. It should be noted herein that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention, and these modifications and improvements fall within the scope of the invention.

Claims

1. The utility model provides a long continuation of journey and long-term filterable split type new trend face guard device, includes by transparent glasses portion (11) and gauze mask portion (12) constitution's integral type face guard main part (1), wears area body (2), new trend initiative mechanism of supplying air (3), battery mechanism (4), its characterized in that:

a left bayonet seat (13) and a right bayonet seat (14) are respectively arranged on the left lower side and the right lower side of a mask part (12) of the mask main body (1), a one-way exhaust valve (15) is further arranged at the lower side position in the middle of the mask part (12) between the left bayonet seat (13) and the right bayonet seat (14), and an air bag blocking supporting edge (16) arranged along the edge of the periphery of the back of the mask main body (1) is further arranged;

the fresh air active air supply mechanism (3) comprises a bottom shell (31), a cover shell (32), a mini fan (33), a filter plate (34), a filter plate bracket (35) and an air outlet pipe (36), wherein

The bottom shell (31) is provided with a concave cavity groove (311), and the air outlet pipe (36) is arranged outside the bottom shell (31) and one end of the air outlet pipe is communicated with the concave cavity groove (311);

the groove wall of the concave groove (311) is also respectively provided with a nesting step (312) and a fixing step (313), and the fixing step (313) is also provided with a screw hole (314); the periphery side of the micro fan (33) is also provided with a lug (331) with a through hole, the micro fan (33) is embedded in the nesting step (312), the lug (331) is supported on the fixing step (313) and is arranged in alignment with the screw hole (314), and the micro fan (33) is fixedly arranged in the concave cavity groove (311) by locking a screw into the screw hole (314) from the through hole of the lug (331);

the filter disc bracket (35) is provided with a concave cavity hole (351) for embedding the filter disc (34), a screw hole site (352) is also arranged on the cavity wall of the concave cavity hole (351), the fixing step (313) is correspondingly provided with a screw locking hole (315), the filter disc bracket (35) is embedded on the fixing step (313) in the concave cavity groove (311), and the filter disc bracket (35) is fixedly arranged in the concave cavity groove (311) by locking the screw from the screw hole site (352) into the screw locking hole (315);

the filter sheet (34) is embedded in a concave cavity hole (351) of the filter sheet bracket (35);

the cover shell (32) is also provided with grid holes (321), and the cover shell (32) is screwed on the bottom shell (31) so as to limit the filter disc (34) in the concave cavity holes (351) in a pressing mode;

the side surface of the bottom shell (31) is also provided with a locking protrusion (5), the left bayonet seat (11) is correspondingly provided with a locking groove (6), and the fresh air active air supply mechanism (3) is conveniently and detachably arranged on the mask main body (1) through locking the locking protrusion (5) of the bottom shell (31) and the locking groove (6) of the left bayonet seat (11);

the accumulator mechanism (4) comprises a shell (41), a surface cover (42), an accumulator (43), a circuit board (44) and an operation switch (45), wherein

A battery accommodating chamber (411) is arranged on the shell (41), and a cavity (412) for accommodating the circuit board (44) is formed in the shell (41) above the battery accommodating chamber (411); the surface cover (42) is correspondingly provided with an accommodating groove (421), and a fixing stud (422) is also arranged in the accommodating groove (421);

the storage battery (43) is arranged in the battery accommodating chamber (411), the circuit board (44) is fixed in the accommodating groove (421) of the surface cover (42) by being locked on the fixing stud (422) through a screw, the operation switch (45) is connected with the circuit board (44), and the operation switch (45) is embedded in a switch hole position (423) arranged on the surface cover (42); the surface cover (42) is covered on the shell (41), and the circuit board (44) is correspondingly embedded in the cavity (412);

the side surface of the shell (41) is also provided with a clamping convex (5), the right bayonet seat (12) is correspondingly provided with a locking groove (6), and the storage battery mechanism (4) is conveniently and detachably arranged on the mask main body (1) through locking the clamping convex (5) of the shell (41) and the locking groove (6) of the right bayonet seat (12);

an electric wire (7) is also connected between the storage battery mechanism (4) and the fresh air active air supply mechanism (3);

the other end of the air outlet pipe (36) is also connected with a three-way micro valve (8), the three-way micro valve (8) is provided with an input port and two output ports, the input port of the three-way micro valve (8) is connected with the other end of the air outlet pipe (36), one of the output ports of the three-way micro valve (8) is connected with an air bag blocking supporting edge (16), and the other output port of the three-way micro valve (8) is connected with an inner concave cavity (18) arranged on the mask main body (1) so as to convey clean air to the mask main body (1).

2. The split fresh air mask device for long endurance and long-acting filtration according to claim 1, wherein: a flat loudspeaker (46) is further arranged on the inner side of the accommodating groove (421) of the face cover (42) and positioned on the circuit board (44), and the flat loudspeaker (46) is electrically connected with the circuit board (44); the battery accommodating chamber (411) of the shell (41) is provided with a miniature microphone (47) and a concave hole (413) for installing the miniature microphone (47), and the miniature microphone (47) is electrically connected with the circuit board (44); the surface cover (42) is also provided with a mesh (424).

3. The split fresh air mask device for long endurance and long-acting filtration according to claim 1, wherein: the one-way exhaust valve (15) comprises a valve seat (151) with an inner cavity hole, a grid net (152), a valve plate (153) and a valve cover (154), wherein the valve seat (151) is arranged on the front surface of the mask main body (1) and is communicated with an inner cavity (18) of the mask main body (1), the grid net (152) is arranged in the inner cavity of the valve seat (151), a shaft hole (155) is further formed in the grid net (152), a pin shaft (156) is arranged on the valve plate (153), the valve plate (153) is sleeved in the shaft hole (155) through the pin shaft (156) so as to be attached to the grid net (152), and a shielding structure is formed for the inner cavity of the valve seat (151); the valve cover (154) is covered on the valve seat (151), and the grid mesh (152) is arranged on the bottom side surface of the valve cover (154).

4. The split fresh air mask device for long endurance and long-acting filtration according to claim 1, wherein: the wearing belt body (2) is composed of a left belt (21) and a right belt (22), buckling holes (23) are formed in the inner side ends of the left belt (21) and the right belt (22), buckling nails (17) are respectively arranged on the two sides of the front surface of the mask main body (1), and the left belt (21) and the right belt (22) are buckled with the buckling nails (17) through the buckling holes (23) respectively and are connected with the mask main body (1);

the outer side ends of the left side belt (21) and the right side belt (22) are respectively provided with a magic tape (24) which can be mutually adhered together;

the middle parts of the left side belt (21) and the right side belt (22) are respectively provided with a lug hanging hole (25).