CN212214404U

CN212214404U - Split type filtration type new trend gauze mask device

Info

Publication number: CN212214404U
Application number: CN202020225213.5U
Authority: CN
Inventors: 唐腊辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-12-25
Anticipated expiration: 2030-02-27

Abstract

The utility model relates to a split type filtering fresh air mask device, which comprises a mask main body, a mask belt body, a fresh air active air supply mechanism and a storage battery module, wherein the left lower side, the right lower side and the middle position of the mask main body are respectively provided with a left clamping seat, a right clamping seat and a one-way exhaust valve, and the edge of the mask main body is also provided with an air bag supporting barrier edge; the fresh air active air supply mechanism can be conveniently installed on the left clamping seat in an assembling and disassembling mode, the storage battery module can be conveniently installed on the right clamping seat in an assembling and disassembling mode, an electric wire is connected between the storage battery module and the fresh air active air supply mechanism, and the mask main body is further provided with a three-way micro valve for switching air supply to the air bag and the mask. The product has the advantages of convenient cleaning, favorable maintenance of sanitation and cleanness, convenient replacement of the mask main body, reduction of the use cost of a user, strong battery endurance, long service life of the filter, convenient assembly and disassembly, no sight shielding, good dust and odor blocking and germ blocking effects, comfortable wearing and the like.

Description

Split type filtration type new trend gauze mask device

Technical Field

The utility model relates to a gauze mask product field, especially a gauze mask device with clean air is carried in initiative.

Background

At present, the mask device with the function of actively conveying clean air sold in the market mainly comprises a mask main body, a mask belt body and a fresh air active air supply mechanism arranged on the front surface 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 sheet, the cover shell and the filter sheet of the whole fresh air active air supply mechanism can be disassembled and assembled, the filter sheet can be conveniently replaced by a user, other components are fixedly assembled with the mask main body, and the user can not disassemble and assemble the mask device in the daily use process. In practical application, the mask device with the structural design mainly has the following defects: firstly, the mask product of this type is designed with a filter, mainly for repeated and repeated use; 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 sterilized, and the sanitary condition of daily application of the mask is greatly influenced. Secondly, the storage battery and the filter sheet of the fresh air active air supply mechanism are integrated together, and are influenced by the volume and size of the whole fresh air active air supply mechanism, and the specifications of the battery and the filter sheet cannot be designed to be large in a reasonable volume range, so that the mask has short battery endurance in daily application, the use of the mask in production activities is greatly influenced, and the filter sheet needs to be frequently replaced due to short service life caused by over-small specification. Thirdly, when the mask main body is damaged and aged, the mask main body can not be replaced independently and can only be scrapped integrally, so that the application cost of a user is greatly increased. The peripheral edge of the mask main body is blocked by a soft edge made of soft rubber materials, so that the attachment degree between the peripheral edge of the mask and the face of a human body is poor, dust and smell easily enter the mask from gaps and clearances between the peripheral edge of the mask and the face of the human body, and the effect of really isolating the dust and the smell cannot be achieved; moreover, the wearing time is long, and the impression is easily generated on the human face, so that the blood of the human face is not smooth, and the appearance and the health of the human body are influenced. Fifthly, the fresh air active air supply mechanism is arranged in the middle of the mask body as a whole, all the functional modules are concentrated together, the whole volume is large, when the mask is worn on the face, the whole fresh air active air supply mechanism can shield part of sight, daily normal production activities of people are affected, and great inconvenience is brought to people.

Therefore, in order to solve the above problems of the existing mask products with active clean air delivery, the applicant considers that there is a great need to improve the mask products of the prior art to better meet the needs of people and make contributions to the physical and mental health of people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem and not enough, provide one kind and conveniently clean, do benefit to and keep sanitary clean, be convenient for change gauze mask main part, reduce user use cost, battery duration is strong, cassette life cycle is long, installs and removes the facility, does not shelter from the sight, and the leakproofness is good, hinders dirt and separates the flavor, the effect that blocks the germ is good, wears comfortable split type filtration type new trend gauze mask device.

The technical scheme of the utility model is realized like this: a split type filtering fresh air mask device comprises a mask main body, a mask belt body, a fresh air active air supply mechanism and a storage battery module, and is characterized in that a left clamping seat and a right clamping seat are respectively arranged on the left lower side and the right lower side of the front surface of the mask main body, a one-way exhaust valve is further arranged on the front surface of the mask main body between the left clamping seat and the right clamping seat, and an air bag supporting and isolating edge arranged along the edge of the back surface of the mask main body is further arranged on the edge of the back surface of the mask main body; the fresh air active air supply mechanism comprises a bottom shell, a cover shell, a micro fan, a filter disc bracket and an air pipe, wherein the bottom shell is provided with a concave cavity groove, and the air pipe is arranged outside the bottom shell and communicated with the concave cavity groove; the 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 of the micro fan is also provided with a lug with a through hole, the micro fan is embedded in the nesting step, the lug is supported on the fixed step and is aligned with the screw hole, and the micro fan is fixedly arranged in the cavity groove by locking a screw into the screw hole from the through hole of the lug; the filter disc support is provided with a concave cavity hole for embedding the filter disc, the wall of the concave cavity hole is also provided with a screw hole position, the fixing steps are correspondingly provided with screw locking holes, the filter disc support is embedded on the fixing steps in the concave cavity groove, and the filter disc support is fixedly arranged in the concave cavity groove by locking screws into the screw locking holes from the screw hole positions; the filter disc is embedded in the concave cavity hole of the filter disc bracket; the cover shell is also provided with a grating hole and is screwed on the bottom shell so as to press and limit the filter sheet in the concave cavity hole; the side surface of the bottom shell is also provided with a clamping protrusion, the left clamping seat is correspondingly provided with a lock catch groove, and the fresh air active air supply mechanism is conveniently installed on the mask main body in a detachable manner through the locking protrusion of the bottom shell and the lock catch groove of the left clamping seat in a locking manner; the storage battery module comprises a shell, a face cover, a storage battery, a circuit board and an operating switch, wherein a battery accommodating chamber is arranged on the shell, and a cavity for accommodating the circuit board is formed in the shell above the battery accommodating chamber; the surface cover is also correspondingly provided with an accommodating groove, and a fixing stud is also arranged in the accommodating groove; the storage battery is arranged in the battery accommodating chamber, the circuit board is locked into the fixing stud through a screw and fixed in the accommodating groove of the face cover, the operating switch is connected with the circuit board, and the operating 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 clamping seat is correspondingly provided with a lock catch groove, and the storage battery module is conveniently installed on the mask main body in a detachable way through the locking protrusion of the shell and the lock catch groove of the right clamping seat in a locked way; an electric wire is also connected between the storage battery module and the fresh air active air supply mechanism; the other end of the air 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 pipe, one output port of the three-way micro valve is connected with the air bag supporting and blocking edge, and the other output port of the three-way micro valve is connected with the inner side cavity arranged on the mask main body so as to convey clean air to the mask main body.

The utility model has the advantages that: (one) the utility model discloses an adopt the components of a whole that can function independently structural design that can the reassembling type between new trend initiative air feed mechanism, battery module and the gauze mask main part to make the gauze mask main part in daily use, can conveniently wash, disinfect and not influence the life-span of electrical components, in addition when the gauze mask main part damages or ageing back, can also change the gauze mask main part alone, can reduce user's daily use cost effectively, the design has simple and easy structure that clamps, installs and removes very conveniently.

On one hand, the fresh air active air supply mechanism and the storage battery module are not enough to shield the sight of a human body, and when the mask device is worn and applied, daily production activities of people cannot be influenced; on the other hand, the fresh air active air supply mechanism and the storage battery module are respectively in split type design, so that the sizes of the filter sheet and the battery can be made larger as much as possible within a reasonable volume range, the mask is enabled to obtain longer battery endurance and longer effective air filtration service cycle, a user does not need to repeatedly charge in the daily use process, the filter sheet is not required to be frequently replaced, the time is saved, and the production operation efficiency is improved.

And thirdly, the air bag supporting and blocking edges are designed on the peripheral edges of the mask body, and the air bag supporting and blocking edges are inflated to be soft and attached to the surface of the face of a person, so that gaps can be effectively prevented from being left between the surface of the face of the person and the peripheral edges of the mask, the sealing performance is good, external dust, harmful odor and germ invasion can be completely isolated, the nose and the mouth of the person can be always placed in a closed space with clean air to breathe freely, and the effects of dust blocking, smell blocking and germ blocking are good.

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

(V) the utility model discloses an assembly structure is simple, reliable, very easy processing and production, and through the design of gasbag supporting barrier edge, can wear for a long time and not leave the indentation on face, wears comfortablely, makes human face keep blood circulation unblocked, is favorable to maintaining human appearance and health.

Drawings

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

Fig. 2 is a schematic structural view of the mask body of the present invention in a disassembled state with the fresh air supply mechanism and the battery module.

Fig. 3 is a schematic view of the disassembly structure of the fresh air supply mechanism.

Fig. 4 is the utility model discloses a battery module's disassembly structure schematic diagram.

Fig. 5 is a schematic view of the disassembly structure between the cover of the battery module, the circuit board, and the flat speaker of the present invention.

Fig. 6 is the schematic view of the sectional structure of the active fresh air supply mechanism of the present invention.

Fig. 7 is a schematic view of the three-dimensional structure of the valve plate of the present invention.

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

Fig. 9 is a schematic view of the disassembly structure between the mask body and the airbag support barrier of the present invention.

Fig. 10 is a schematic cross-sectional view of the airbag support barrier according to the present invention.

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

Fig. 12 is a schematic cross-sectional view of the connection nozzle of the mask body according to the present invention.

Detailed Description

As shown in fig. 1 and 2, a split-type filtering fresh air mask device of the present invention comprises a mask body 1, a mask belt body 2, a fresh air active air supply mechanism 3, a storage battery module 4, and other large components. In order to realize the purpose of the utility model, the left lower side and the right lower side of the front surface of the mask main body 1 are respectively provided with a left clamping seat 11 and a right clamping seat 12, and the left clamping seat 11 and the right clamping seat 12 are respectively designed at the left lower side and the right lower side of the front surface of the mask main body 1, so that the fresh air active air supply mechanism 3 and the storage battery module 4 can shield the human body sight line in the wearing process of the mask; and the left clamping seat 11 and the right clamping seat 12 are respectively distributed 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 are more balanced, and the appearance is more harmonious. As shown in fig. 1 and 2, a one-way exhaust valve 13 is further disposed on the front surface of the mask body 1 between the left clamping seat 11 and the right clamping seat 12, and the one-way exhaust valve 13 mainly functions to exhaust the exhaust gas discharged from the human body to the outside of the mask, thereby reducing the concentration of carbon dioxide.

In order to make the product worn for a long time without indentation on the face, and have the advantages of comfortable wearing and good dust and odor blocking effect, as shown in fig. 1, 2 and 9, the edge of the back of the mask body 1 is also provided with an air bag supporting and blocking edge 14 arranged along the edge. In this case, in order to easily and reliably assemble the airbag support barrier rib 14 to the edge of the mask body 1, as shown in fig. 9 and 10, the airbag support barrier rib 14 is composed of an airbag strip 141 and a fixing clip groove side 142 arranged along the airbag strip 141, and the fixing clip groove side 142 is further provided with a plurality of fixing holes 143 penetrating in the lateral direction. When the mask is assembled, as shown in fig. 9, the edge of the mask body 1 is nested with the fixing clip groove 142 and is clamped and fixed by passing a rivet or a screw nut through the fixing hole 143, and the assembled mask is 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 support 35, and an air pipe 36, wherein the bottom shell 31 is provided with a concave groove 311, and one end of the air pipe 36 is disposed outside the bottom shell 31 and is connected to the concave groove 311 in a penetrating manner.

As shown in fig. 3, the groove wall of the cavity groove 311 is further provided with a nesting step 312 and a fixing step 313, respectively, and the fixing step 313 is further provided with a screw hole 314; the peripheral edge of the micro fan 33 is further 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 aligned with the screw hole 314, and the micro fan 33 is fixedly installed in the cavity slot 311 by locking a screw into the screw hole 314 from the through hole of the lug 331. Through the structural design, the micro fan 33 is simply, reliably and firmly installed in the bottom shell 31, and is simple to assemble and convenient to maintain in the future. Similarly, as shown in fig. 3, the filter support 35 is provided with a cavity hole 351 for the filter 34 to be inserted, a screw hole 352 is further provided on the cavity wall of the cavity hole 351, the fixing step 313 is correspondingly provided with a screw locking hole 315, the filter support 35 is inserted on the fixing step 313 in the cavity slot 311, and the filter support 35 is fixedly mounted in the cavity slot 311 by locking a screw into the screw locking hole 315 from the screw hole 352. Next, as shown in fig. 6, the filter 34 is inserted into the cavity 351 of the filter holder 35, and the cover 32 is further provided with a grill hole 321 to allow air to enter the filter 34, filtered by the filter 34, enter the micro-fan 33, and then output from the air pipe 36. The cover shell 32 is screwed on the bottom shell 31 to press and limit the filter sheet 34 in the cavity hole 351; when the filter 34 needs to be replaced, the cover shell 32 is unscrewed, and the filter 34 can be taken out and replaced with a new one.

As shown in fig. 2, a clamping protrusion 5 is further disposed on a side surface of the bottom shell 31, a locking groove 6 is correspondingly disposed on the left clamping seat 11, and the fresh air active air supply mechanism 3 is detachably mounted on the mask body 1 by locking the clamping protrusion 5 of the bottom shell 31 with the locking groove 6 of the left clamping seat 11.

As shown in fig. 4, the battery module 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 arranged on the casing 41, and a cavity 412 for accommodating the circuit board 44 is further formed in the casing 41 above the battery accommodating chamber 411; the surface cover 42 is also correspondingly provided with a receiving groove 421, and a fixing stud 422 is also arranged in the receiving groove 421. When assembled, the storage battery 43 is installed in the battery accommodating chamber 411, the circuit board 44 is fixed in the accommodating recess 421 of the face cover 42 by being screwed into the fixing stud 422, the operating switch 45 is connected with the circuit board 44, and the operating switch 45 is embedded in the switch hole 423 formed in the face cover 42. The face cover 42 is placed on the housing 41, and the circuit board 44 is correspondingly embedded in the cavity 412.

As shown in fig. 2 and 4, a locking protrusion 5 is further provided on a side surface of the housing 41, a locking groove 6 is correspondingly provided on the right card-mounting seat 12, and the battery module 4 is detachably mounted on the mask body 1 by locking the locking protrusion 5 of the housing 41 with the locking groove 6 of the right card-mounting seat 12.

As shown in fig. 1, an electric wire 7 is further connected between the storage battery module 4 and the fresh air active air supply mechanism 3. In addition, an electric plug connector 71 can be further arranged on the electric wire 7, and an electric plug connection hole 72 is correspondingly arranged on the fresh air active air supply mechanism 3, so that the storage battery module 4 and the fresh air active air supply mechanism 3 can be separated and easily and conveniently electrically connected. A charging interface is also provided on the housing 41 of the battery module 4.

As shown in fig. 1 and 2, the other end of the air tube 36 is further connected to 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 to the other end of the air tube 36, one output port of the three-way micro valve 8 is connected to the air bag supporting barrier rib 14, and the other output port of the three-way micro valve 8 is connected to the inner side cavity 15 of the mask body 1, so as to deliver clean air to the mask body 1. Through the design of the three-way micro valve 8, when the air bag supporting barrier edge 14 needs to be supplemented with air, the three-way micro valve 8 can cut off the air supply of the concave cavity 15 at the inner side of the mask body 1; when the air is supplemented to the air bag supporting barrier edge 14, the air pressure of the air bag supporting barrier edge 14 is adjusted; then the three-way micro valve 8 is switched back to supply air to the concave cavity 15 at the inner side of the mask body 1. When the air pressure of the air bag supporting and blocking edge 14 is too saturated, the operation of the fresh air active air supply mechanism 3 can be stopped, the three-way micro valve 8 is switched to be communicated with the air bag supporting and blocking edge 14, the effect of air pressure relief can be achieved, the relieved air pressure returns to the fresh air active air supply mechanism 3, and the air pressure is discharged to the outside through the filter disc 34.

Because the air bag supporting barrier rib 14 is inflated without being inflated too hard, and only the requirement of the air bag supporting barrier rib 14 for bulging is met, the fresh air active air supply mechanism 3 supplies air to the air bag supporting barrier rib 14, and the application requirement is completely met. In order to facilitate the sealing connection between the air tube 36 and the mask body 1 when the mask body 1 is replaced, as shown in fig. 11 and 12, the mask body 1 is further provided with a connection air nozzle 10, and the connection air nozzle 10 is fitted to a through hole 103 formed in the mask body 1 by a nut 101 and a stay 102. When in connection, the air pipe can be directly sleeved with the connection air nozzle 10.

Because the mask of the present invention is blocked by the air bag supporting and blocking edge 14, when people wear the mask, the resolution of the outward communication of the communication speech is affected to a certain extent, and as shown in fig. 4 and 5, for the convenience of normal communication of people during wearing, a flat speaker 46 is further disposed inside 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 to the circuit board 44; the bottom of the battery accommodating chamber 411 of the housing 41 is further provided with a miniature microphone 47 and a concave hole 413 for mounting the miniature microphone 47, and the miniature microphone 47 is electrically connected with the circuit board 44; the face cover 42 is also provided with meshes 424. By means of the cooperation of the microphone 47 and the flat speaker 46, people can communicate clearly when wearing the product.

In order to make the one-way exhaust valve 13 simple, reliable and durable in structure, as shown in fig. 2, fig. 7, fig. 8 and fig. 11, the one-way exhaust valve 13 includes a valve seat 131 with an inner cavity hole, a grid net 132, a valve plate 136 and a valve cover 133, wherein the valve seat 131 is disposed on the front surface of the mask body 1 and is communicated with the inner cavity 15 of the mask body 1, the grid net 132 is disposed in the inner cavity of the valve seat 131, a shaft hole 134 is further disposed on the grid net 132, a pin shaft 135 is disposed on the valve plate 136, and the valve plate 136 is sleeved in the shaft hole 134 through the pin shaft 135 and is attached to the grid net 132, that is, as shown in fig. 11, and forms a shielding structure for the inner cavity of the valve seat 131. The valve cover 133 covers the valve seat 131, and a grid 132 is further disposed on a bottom side of the valve cover 133 to facilitate outward air discharge. The operating principle of this one-way exhaust valve 13 is substantially the same: when people inhale air, the valve plate 136 is attached to the grid mesh 132 in the valve seat 131 under the influence of the airflow motion of the inhaled air; when people spit the gas, the gas flow rushes outwards to open the valve plate 136, namely the gas is discharged.

In order to ensure that the mask belt body 2 is convenient to wear, firm to wear and not easy to fall off, as shown in fig. 1, the mask belt body 2 is composed of a left side belt 21 and a right side belt 22, fastening holes 23 are further formed in the inner ends of the left side belt 21 and the right side belt 22, fastening nails 16 are further respectively arranged on the two sides of the front face of the mask main body 1, the left side belt 21 and the right side belt 22 are respectively fastened with the fastening nails 16 through the fastening holes 23 to be connected with the mask main body 1, and the mask belt body 2 and the mask main body 1 are convenient to assemble and disassemble through the design. As shown in fig. 1, the outer ends of the left side strap 21 and the right side strap 22 are respectively provided with a magic tape 24 which can be adhered together, the middle parts of the left side strap 21 and the right side strap 22 are respectively provided with an ear hanging hole 25, and the ear hanging hole 25 is worn on the ear of a human body when being worn, so as to increase the wearing stability.

In addition, as shown in fig. 2, 4 or 6, L-shaped slots 30 are respectively formed in the left clamping seat 11 and the right clamping seat 12, the air tube 36 and the electric wire 7 can move along the L-shaped slots 30, and when the bottom shell 31 of the fresh air active air supply mechanism 3 is not affected by the buckling of the left clamping seat 11 with the left clamping seat, more parts can be snapped into the left clamping seat 11, and when the shell 41 of the storage battery module 4 is not affected by the buckling of the right clamping seat 12 with the right clamping seat 4, more parts can be snapped into the right clamping seat 12, so that the fresh air active air supply mechanism 3 and the storage battery module 4 can be locked more stably in their respective clamping seats.

The utility model discloses an in circuit board 44, WIFI module, bluetooth module can also be added to in order to establish communication links with smart mobile phone etc. see through the APP procedure of smart mobile phone and control this product operation.

The above description of the structural solution is an embodiment of the preferred embodiment of the present invention, but it does not represent a limitation to the protection scope of the technical solution of the present invention. It should be noted that, for those skilled in the art, a plurality of modifications and improvements can be made without departing from the concept of the present invention, and all of the modifications and improvements belong to the protection scope of the present invention, and all fall into the protection scope of the present invention.

Claims

1. The utility model provides a split type filter type new trend gauze mask device, includes gauze mask main part (1), the gauze mask area body (2), new trend initiative air feed mechanism (3), battery module (4), its characterized in that:

the left lower side and the right lower side of the front surface of the mask main body (1) are respectively provided with a left clamping seat (11) and a right clamping seat (12), the front surface of the mask main body (1) between the left clamping seat (11) and the right clamping seat (12) is also provided with a one-way exhaust valve (13), and the edge of the back surface of the mask main body (1) is also provided with an air bag supporting and blocking edge (14) arranged along the edge of the back surface of the mask main body;

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

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

the wall of the cavity groove (311) is also provided with a nesting step (312) and a fixing step (313) respectively, and the fixing step (313) is also provided with a screw hole (314); the periphery 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 cavity groove (311) by locking a screw into the screw hole (314) from the through hole of the lug (331);

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

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

the cover shell (32) is also provided with a grating hole (321), and the cover shell (32) is screwed on the bottom shell (31) so as to press and limit the filter sheet (34) in the cavity hole (351);

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

the battery module (4) comprises a housing (41), a surface cover (42), a battery (43), a circuit board (44) and an operating 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 also correspondingly provided with an accommodating groove (421), and the accommodating groove (421) is also internally provided with a fixing stud (422);

the storage battery (43) is arranged in the battery accommodating chamber (411), the circuit board (44) is fixed in an accommodating groove (421) of the face cover (42) by being screwed into the fixing stud (422), the operating switch (45) is connected with the circuit board (44), and the operating switch (45) is embedded in a switch hole position (423) arranged on the face cover (42); the face cover (42) is arranged 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 clamping seat (12) is correspondingly provided with a lock catch groove (6), and the storage battery module (4) is conveniently and detachably arranged on the mask main body (1) through the locking convex (5) of the shell (41) and the lock catch groove (6) of the right clamping seat (12) in a locking way;

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

the other end of the air 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 pipe (36), one output port of the three-way micro valve (8) is connected with the air bag supporting and blocking edge (14), and the other output port of the three-way micro valve (8) is connected with an inner side cavity (15) arranged on the mask main body (1) so as to convey clean air to the mask main body (1).

2. The split filtering fresh air mask device according to claim 1, wherein: a flat loudspeaker (46) is also arranged on the inner side of the circuit board (44) in the accommodating groove (421) of the face cover (42), and the flat loudspeaker (46) is electrically connected with the circuit board (44); the bottom of the battery accommodating chamber (411) of the shell (41) is also provided with a miniature microphone (47) and a concave hole (413) for mounting the miniature microphone (47), and the miniature microphone (47) is electrically connected with the circuit board (44); the face cover (42) is also provided with meshes (424).

3. The split filtering fresh air mask device according to claim 1, wherein: the one-way exhaust valve (13) comprises a valve seat (131) with an inner cavity hole, a grating net (132), a valve plate (136) and a valve cover (133), wherein the valve seat (131) is arranged on the front face of the mask main body (1) and communicated with an inner cavity (15) of the mask main body (1), the grating net (132) is arranged in the inner cavity of the valve seat (131), a shaft hole (134) is further arranged on the grating net (132), a pin shaft (135) is arranged on the valve plate (136), the valve plate (136) is sleeved in the shaft hole (134) through the pin shaft (135) and is attached to the grating net (132), and a shielding structure is formed in the inner cavity of the valve seat (131); the valve cover (133) is covered on the valve seat (131), and the bottom side surface of the valve cover (133) is also provided with a grid net (132).

4. The split filtering fresh air mask device according to claim 1, wherein: the mask belt body (2) is composed of a left side belt (21) and a right side belt (22), buckling holes (23) are further formed in the inner side ends of the left side belt (21) and the right side belt (22), buckling nails (16) are further respectively arranged on two sides of the front face of the mask main body (1), and the left side belt (21) and the right side belt (22) are respectively buckled with the buckling nails (16) through the buckling holes (23) of the left side belt and the right side belt 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 magic tapes (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 an ear hanging hole (25).