CN101947369A

CN101947369A - Water filtering mask

Info

Publication number: CN101947369A
Application number: CN 201010254193
Authority: CN
Inventors: 杨浪; 陈德良
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-16
Filing date: 2010-08-16
Publication date: 2011-01-19

Abstract

The invention relates to a water filtering mask. The mask comprises a filter (1), a breathing bag (2) and a breathing mask (3), wherein the breathing bag (2) is connected with the filter (1) and the breathing mask (3) through air pipes. The mask has the advantages of assisting breathing by other power such as a motor and the like and greatly improving filtering effect, along with high practicability and innovativeness.

Description

The water filtration mouth mask

Technical field

The present invention relates to a kind of mouth mask, relate in particular to a kind of water filtration mouth mask that can fully filter dust and pernicious gas.

Background technology

Air is the requisite resource of human survival, clean air can fully guarantee human beings'health and persistent existence, and under some adverse circumstances, dust concentration or harmful gas concentration are too high, such as: the construction site, the waste incineration field, the explosion place, chemical plant or the like, the air ambient very severe that these are regional, the people that caused in these adverse circumstances healthy is subjected to serious harm, therefore, people in these abominable areas can utilize mouth mask to carry out the filtration and the purification of air in work and life, suck the dust and the pernicious gas of air by the effect reduction people of mouth mask.

At present, the mouth mask of selling on the market mainly is the anti-dust respirator that filters with filter paper, and the filter dirt effect of this filter paper is relatively poor, leaching function under adverse circumstances is limited, when wearing this class mouth mask, need frequent replacing filter paper, could guarantee certain filter effect all the time, and in the prior art, a kind of anti-dust respirator that utilizes water to filter is provided, this anti-dust respirator has assemblies such as air cleaner, utilize the water in the air cleaner to carry out air filtration, air cleaner can be affiliated to during use and place waistband, in clothing or the trousers pocket, but the at first dustproof effect of this anti-dust respirator is general, the filtered fluid of air cleaner needs periodic replacement, and the dust of filtration can't be discharged, and needs people directly to suck from filter, cause sucking difficulty, cause the suction deficiency such as patient, child, the use difficulty of disadvantaged group such as old man.

For overcoming the defective of prior art, designer of the present invention provides a kind of novel water filtration mouth mask.

Summary of the invention

The object of the present invention is to provide a kind of water filtration mouth mask, it is simple and practical, and is easy to carry, good filtration effect can easily be got rid of the filtration dust, improves the result of use of filtered fluid, and can utilize power to carry out the suction of air, reduce the suction difficulty, enlarge user's scope greatly.

For achieving the above object, the invention discloses a kind of water filtration mouth mask, it comprises filter 1, breathing bag 2 and breathing mask 3, all connects by tracheae between breathing bag 2 and filter 1, breathing bag 2 and the breathing mask 3, it is characterized in that:

Filter 1 comprises sealing shell 11, suction apparatus 12 and air-out apparatus 13, suction apparatus 12 comprises the motor-driven air inlet pipe 121 more than one or, in the filtered fluid in this motor-driven air inlet pipe 121 1 ends insertion shell 11, the other end stretches out shell 11, air-out apparatus 13 comprises the outlet pipe more than one or, outlet pipe one end stretches in the shell 11 and is positioned at the liquid level upper end of filtered fluid, and the other end stretches out shell 11 and is connected with breathing bag;

Breathing bag 2 comprises housing 21, airbag 22, air inlet pipe 23, escape pipe 24, reciprocating drive unit 25 and support reduction plate 26, airbag 22 is positioned at housing 21, airbag 22 connects air inlet pipe 23 and escape pipe 24 respectively, air inlet pipe 23 is communicated with the air-out apparatus 13 of filter, escape pipe 24 is communicated with breathing mask 3, support reduction plate 26 is positioned at airbag, and reciprocating drive unit 25 is fixedly connected on support reduction plate 26 and drives support reduction plate 26 and moves back and forth in airbag, constantly struts airbag to produce vacuum effect.

Wherein, suction apparatus 12 also comprises the automatic air inlet pipe 122 more than one or, one end of this automatic air inlet pipe 122 inserts in the filtered fluid, and the other end stretches out from shell 11, and the degree of depth that this automatic air inlet pipe 122 is inserted filtered fluid is less than the insertion depth of motor-driven air inlet pipe 121.

Wherein, this automatic air inlet pipe 122 end of stretching out an end of shell 11 has enclosed switch.

Wherein, filter 1 also comprises precipitation net 14 and sedimentation basin 15, and precipitation net 14 is positioned at the bottom of filter 1, and this precipitation net 14 is made of a plurality of folded sheets that are arranged in parallel, and sedimentation basin 15 is positioned at precipitation net 14 bottoms.

Wherein, filter 1 also comprises baffle device for water 16, baffle device for water 16 comprises first water fender 161 and second water fender 162, first water fender 161 be positioned at shell 11 around and be positioned at liquid level top, second water fender 162 is positioned at the centre position of shell 11 and is positioned at the liquid level top, thus, can block splashing of filtered fluid, avoid filtered fluid to fall into the inlet of air-out apparatus.

Wherein, filter 1 also comprises anti-air impact baffle plate 17, and this anti-air impact baffle plate 17 is positioned at the port that air inlet pipe is inserted an end of filtered fluid, thereby the impact when having avoided the air of air inlet pipe to enter filtered fluid influences the sedimentation basin sedimentation effect.

Wherein, filter 1 also comprises suspension arrangement 18, and this suspension arrangement 18 is positioned at the top of shell 1, and these suspension arrangement 18 upper ends have the through hole of suspension of being beneficial to and location.

Wherein, have in the position that airbag 22 is connected with air inlet pipe 23 and avoid filtering gas to flow back to the breather check valve 28 of filter.

Wherein, airbag 22 has two, lays respectively at the both sides of reciprocating drive unit 25, and the two ends of reciprocating drive unit 25 connect the support reduction plate 26 in two airbags 22 respectively.

Wherein, breathing bag also comprises the sealant 27 with reciprocating drive unit 25 and airbag 22 isolation.

Wherein, sealing layer 27 is corrugated hoses that can stretch along with reciprocating drive unit 25 of being made by elastic caoutchouc, plastic foil or moccasin.

Wherein, this reciprocating drive unit 25 comprises tooth bar 251, left driving wheel 252 and right driving wheel 253, left driving wheel 252 comprises first driven gear 2521 and the first half tooth driving gears 2522, right driving wheel 253 comprises second driven gear 2531 and the second half tooth driving gears 2532, two driven gears are conventional full-depth tooth gear and are driven by the driven by motor driving wheel, two and half tooth driving gears are installed thus according to equidirectional contacted tooth bar 251 by half different tooth driving gears in different.

Wherein, two side positions at tooth bar 251 middle parts have a plurality of with tooth bar 251 motion the fixed gear 254 of servo-actuated.

Wherein, also comprise semicircle change-over switch 2533 on the second half tooth driving gears 2532 of right driving wheel 253, airbag 22 is communicated with escape pipes 24 by this semicircle change-over switch 2533.

Wherein, also comprise the semicircle change-over switch on the first half tooth driving gears 2522 of left driving wheel 252, airbag 22 is communicated with escape pipe 24 by this semicircle change-over switch.

Wherein, motor is opened control by the switch that is installed on the housing.

Wherein, has deceleration device between motor and the driving wheel.

By said structure, energy of the present invention is realized following effect:

1, water filtration mouth mask of the present invention can carry out the suction of air by power, thereby when people need suck cleaned air, can realize sucking by very little inhalation power, has reduced it and has used difficulty, greatly facilitates the scope of application of this mouth mask;

2, water filtration mouth mask of the present invention can fully filter the dust in the filtered fluid, and can realize the dust precipitation in the filtered fluid, by the discharge of dust, thereby saves filtered fluid;

3, water filtration mouth mask of the present invention provides better filter effect, because the intervention of auxiliary power, tracheae can insert the darker place of filtered fluid, thus, air can be filtered more fully, and, safeguards system when running out of steam also is provided, has made that its use is safer;

4, water filtration mouth mask of the present invention is easy to carry, simple in structure, easy to use, can offer numerous people and supply with clean air.

5, adopt water as filter medium, cost is also saved in both environmental protection.

The present invention will further describe in detail by the following specific embodiments, and will be more apparent and obvious to understand further combined with the description of the drawings.

Description of drawings

Fig. 1 has shown overall structure schematic diagram of the present invention.

Fig. 2 has shown the schematic diagram of the preferred embodiment of filter of the present invention.

Fig. 3 has shown the schematic diagram of the preferred embodiment of breathing bag of the present invention.

Fig. 4 has shown the schematic diagram of the left and right driving wheel among the present invention.

Fig. 5 has shown the switch effect schematic diagram of semicircle change-over switch of the present invention.

Fig. 6 has shown another exemplary plot of reciprocating drive unit of the present invention.

The specific embodiment

Referring to Fig. 1, water filtration mouth mask of the present invention mainly comprises filter 1, breathing bag 2 and breathing mask 3, all connects by tracheae between breathing bag 2 and filter 1, breathing bag 2 and the breathing mask 3; After extraneous air filters through filter 1, utilize the power in the breathing bag 2 to carry out the gas suction, people pass through the air breathing mask 3 directly sucks filtration from breathing bag 2 after, thereby need not directly to suck from filter air, reduce inhalation power, improved the scope of application.

Wherein, referring to Fig. 2, a preferred embodiment that has shown filter of the present invention, this filter 1 comprises the sealing shell 11 with external isolation, suction apparatus 12 and air-out apparatus 13, in shell 11, has filtered fluid, filtered fluid can be water or other suitable filter medium, also comprise extraneous air is imported suction apparatus 12 in the shell, suction apparatus 12 comprises the motor-driven air inlet pipe 121 more than one or at least, one end of motor-driven air inlet pipe 121 inserts in the filtered fluid, the other end from the top of shell 11 or sidepiece or suitable position stretch out shell, owing to adopted power to help gas flow in the following breathing bag 2, therefore, this motor-driven air inlet pipe 121 can be darker than air inlet pipe of the prior art the insertion filter medium, making gas can access more fully filters, suction apparatus 12 can also comprise the automatic air inlet pipe 122 more than one or, automatically an end of air inlet pipe 122 inserts in the filtered fluid, the other end from the top of shell 11 or sidepiece or suitable position stretch out shell 11, its degree of depth of inserting filtered fluid is less than motor-driven air inlet pipe 121, and the end that this automatic air inlet pipe 122 is stretched out an end of shell 11 has the enclosed switch (not shown), when motor-driven air inlet pipe 121 is worked, switch cuts out, automatically air inlet pipe 122 not air inlets, when stopping owing to fault or other reason, the power in the breathing bag 2 make motor-driven air inlet pipe 121 suck air under the suction people, at this moment, can open switch, automatically air inlet pipe 122 is ventilated the automatic air inlet in the time of can providing loss of power thus.Air-out apparatus 13 comprises the outlet pipe more than one and, and an end of outlet pipe inserts in the shell and is positioned on the liquid level, preferably is positioned at the top, its other end from the top of shell 11 or sidepiece stretch out shell 11 and be communicated to breathing bag 2.In filter 1, can also comprise precipitation net 14, sedimentation basin 15, baffle device for water 16, anti-air impact baffle plate 17, suspension arrangement 18 and drainage arrangement 19; Wherein, precipitation net 14 is positioned at the bottom of filter, it is made of a plurality of folded sheets that are arranged in parallel, folded sheet is closely arranged mutually, folded sheet is preferably the folded sheet of paper folding shape, after folded sheet be arranged in parallel, between folded sheet, form tortuous reciprocal passage, filtered fluid circles round mobile at these folded sheets that are arranged in parallel, thereby make filtered fluid pass through the process crippling of folded sheet, make that the dust in the filtered fluid can rapid precipitation, greatly improved the filter effect of filtered fluid, sedimentation basin 15 is positioned at precipitation net 14 bottoms, dust finally enters sedimentation basin 15 by precipitation net 14, finally discharges by the drainage arrangement of sedimentation basin 15 bottoms, like this, can be only remove dust in the whole filtered fluid, improved the service efficiency and the scope of application of filtered fluid by the waste liquids in the sedimentation basin 15.Baffle device for water 16 can comprise first water fender 161 and second water fender 162, first water fender 161 be positioned at shell 11 around and be positioned at liquid level top, second water fender 162 is positioned at the centre position of shell 11 and is positioned at the liquid level top, baffle device for water 16 can block splashing of filtered fluid, avoids filtered fluid to fall into the inlet of outlet pipe.Anti-air impact baffle plate 17 is positioned at the port that air inlet pipe is inserted an end of filtered fluid, and the impact when having avoided the air of air inlet pipe to enter filtered fluid influences sedimentation effect.Suspension arrangement 18 is positioned at the top of shell 1, and its upper end has through hole, be beneficial to and hang and the location, and the setting of through hole makes it remain balance.

Referring to Fig. 3; a preferred embodiment that has shown breathing bag of the present invention; this breathing bag 2 comprises housing 21, airbag 22, air inlet pipe 23, escape pipe 24, reciprocating drive unit 25, support reduction plate 26, sealant 27, breather check valve 28 and the check-valves 29 of giving vent to anger; wherein; housing 21 offers the protection of all parts; it is not airtight; be preferably and on housing 21, have a plurality of through hole (not shown); make airbag 22 can not be hindered when inside expansion or contraction, internal gas can be discharged housing by through hole.Airbag 22 is positioned at housing 21, make by elastic material, preferably by elastic caoutchouc, plastic foil, elasticity such as moccasin material are preferably made, airbag 22 both sides connect air inlet pipe 23 and escape pipe 24 respectively, in airbag, has support reduction plate 26, support reduction plate 26 is preferably plate shape, annular, taper shape or the like suitable shape, it back and forth drives by reciprocating drive unit 25, make airbag 22 along with the reciprocal driving of reciprocating drive unit 25 can launch, airbag 22 is preferably two, lay respectively at the both sides of reciprocating drive unit 25, and the two ends of reciprocating drive unit 25 connect the support reduction plate 26 of two airbags 22 respectively, thus, when moving back and forth, airbag 22 to both sides struts operation respectively, so that vacuum effect to be provided, reciprocating drive unit 25 can be installed in the housing middle part, also can be installed in top or bottom or any suitable position, sealant 27 is isolated reciprocating drive unit 25 and airbag 22, sealant 27 can be by elastic caoutchouc, plastic foil, elasticity such as moccasin are the corrugated hose made of material preferably, it can isolate reciprocating drive unit 25 and airbag 22 preferably along with reciprocating drive unit 25 stretches; The position that is connected with air inlet pipe 23 at airbag 22 has breather check valve 27, avoids filtering gas to flow back to filter, has the check-valves of giving vent to anger 28 in the position that airbag 22 is connected with escape pipe, avoids ambient atmos to flow into air bag.

Referring to Fig. 3, a preferred embodiment that has shown reciprocating drive unit 25 of the present invention equally, this reciprocating drive unit 25 comprises tooth bar 251, left driving wheel 252 and right driving wheel 253, tooth bar 251 can back and forth move forward and backward under the driving of left driving wheel 252 and right driving wheel 253, thereby make the support reduction plate 26 that is fixed in tooth bar 251 two ends move back and forth, further make the airbag of both sides back and forth to strut, thereby suck gas from air intake duct.Left driving wheel 252 and right driving wheel 253 all comprise double-layer structure, can be between the double-layer structure by being coupling, riveted joint, bonding, welding or the like suitable manner is fixed, referring to Fig. 4, left driving wheel 252 comprises first driven gear 2521 and the first half tooth driving gears 2522, right driving wheel 253 comprises second driven gear 2531 and the second half tooth driving gears 2532, two driven gears are conventional full-depth tooth gear, can drive by the driven by motor driving wheel shown in the figure, driving by a motor, when the driving wheel of motor rotates, left driving wheel 252 rotates (as shown in Figure 4) with right driving wheel 253 around identical rotation direction, when driven by motor first driven

gear

2521 and 2531 rotations of second driven gear, the first half tooth driving gears 2522 and the second half tooth driving gears 2532 rotate equally, and when mounted, two and half tooth driving gears are installed according to equidirectional and made they and tooth bar be positioned at same plane (as shown in Figure 3), thus, when the driving wheel of motor is rotated counterclockwise as shown in Figure 4, first driven gear 2521 and second driven gear 2531 turn clockwise, when being positioned at position shown in Figure 3, the first half tooth driving gears, the 2522 contact tooth bars 251 of left driving wheel 252, the second half tooth driving gears 2532 of right driving wheel 253 disengage tooth bar 251, thus, left driving wheel 252 drives tooth bar 251 and moves down, when the first half tooth driving gears 2522 turn over half-turn, at this moment, the first half tooth driving gears 2522 disengage with tooth bar 251, and simultaneously the second half tooth driving gears 2532 turn over half-turn equally, tooth on it contacts with tooth bar 251, driving tooth bar 251 moves up, thus, realize pumping of tooth bar 251, preferably, two side positions at the tooth bar middle part, have a plurality of fixed gears 254, fixed gear 254 servo-actuated with tooth bar 251 motions, play the effect fixing and location, improve the motion rigidity of tooth bar 251.Simultaneously optionally, on the second half tooth driving gears 2532 of right driving wheel 253, also can comprise semicircle change-over switch 2533, semicircle change-over switch 2533 can be by being coupling, riveted joint, bonding, welding or the like suitable manner is fixed on the second half tooth driving gears 2532, airbag 22 is communicated with escape pipe 24 by this semicircle change-over switch 2533, give vent to anger check-valves 29 between this semicircle change-over switch 2533 and airbag 22, its operation principle is seen Fig. 5, oblique line among Fig. 5 has been represented this semicircle change-over switch 2533, when motor rotates, this semicircle change-over switch 2533 rotates equally thereupon, when semicircle change-over switch 2533 rotates to left figure position, when just opening the passage of downside, gas can flow out from the airbag of downside, offering people breathes, when semicircle change-over switch 2533 rotates to right figure position, when just opening the passage of upside, gas can flow out from the airbag of upside, offering people breathes, thus, people can a breathing side airbag or breathe the airbag of both sides simultaneously, but can utilize such switch setting, make the even air feed of two lateral airbags, realized steady air feed, preferably the opposite side at outlet passageway also has accessory channel, accessory channel is communicated with the opposite side and the outlet passageway of semicircle change-over switch 2533, and this accessory channel can help gas communication at extreme position.Preferably this semicircle change-over switch can be installed on the first half tooth driving gears 2522 of left driving wheel 252 equally, and airbag 22 is same to be communicated with escape pipes 24 by this semicircle change-over switches.

Preferably, motor is opened control by the switch that is installed on the housing.

Preferably, has deceleration device between motor and the driving wheel.

Referring to Fig. 6, another exemplary plot that has shown reciprocating drive unit of the present invention, this reciprocating drive unit that utilizes the connecting rod principle to realize is same in the present invention available, rotate by motor driven gear, the rotation of gear makes bar move back and forth, thus, can realize moving back and forth of support reduction plate of the present invention simultaneously, and other reciprocating drive unit equally can be with here.

The schematic diagram that has shown the preferred embodiment of spray mask 3 of the present invention, this spray mask 3 comprises face shield 31, gas-tpe fitting 32, wears elastic cord 33 and expiratory one-way valve 34, face shield 31 can well adsorb face, thereby provide obturation effect preferably, gas-tpe fitting 32 is used to connect tracheae, wear elastic cord 33 and be used for this spray mask 3 adjustable heads that are worn on, expiratory one-way valve 34 provides the flow pass of breath.

This shows, when concrete the application, people need put on spray mask, open motor switch, machine operation drives reciprocating drive unit and moves back and forth, thereby the airbag that back and forth drives both sides constantly produces vacuum effect, driving gas enters filter from the outside by inlet duct, feed airbag through the clean gas after filtering, people constantly suck cleaned air by the semicircle change-over switch from breathing bag, realize the filtration of gas thus.

Claims

1. water filtration mouth mask, it comprises filter (1), breathing bag (2) and breathing mask (3), all connects by tracheae between breathing bag (2) and filter (1), breathing bag (2) and the breathing mask (3), it is characterized in that:

Filter (1) comprises sealing shell (11), suction apparatus (12) and air-out apparatus (13), suction apparatus (12) comprises the motor-driven air inlet pipe (121) more than one or, these motor-driven air inlet pipe (121) one ends insert in the interior filtered fluid of shell (11), the other end stretches out shell (11), air-out apparatus (13) comprises the outlet pipe more than one or, outlet pipe one end stretches in the shell (11) and is positioned at the liquid level upper end of filtered fluid, and the other end stretches out shell (11) and is connected with breathing bag;

Breathing bag (2) comprises housing (21), airbag (22), air inlet pipe (23), escape pipe (24), reciprocating drive unit (25) and support reduction plate (26), airbag (22) is positioned at housing (21), airbag (22) connects air inlet pipe (23) and escape pipe (24) respectively, air inlet pipe (23) is communicated with the air-out apparatus (13) of filter, escape pipe (24) is communicated with breathing mask (3), support reduction plate (26) is positioned at airbag, reciprocating drive unit (25) is fixedly connected on support reduction plate (26) and drives support reduction plate (26) and moves back and forth in airbag, constantly struts airbag to produce vacuum effect.

2. water filtration mouth mask as claimed in claim 1, it is characterized in that, suction apparatus (12) also comprises the automatic air inlet pipe (122) more than one or, one end of this automatic air inlet pipe (122) inserts in the filtered fluid, the other end stretches out from shell (11), and the degree of depth of this automatic air inlet pipe (122) insertion filtered fluid is less than the insertion depth of motor-driven air inlet pipe (121).

3. water filtration mouth mask as claimed in claim 2 is characterized in that, the end that this automatic air inlet pipe (122) is stretched out an end of shell (11) has enclosed switch.

4. as each described water filtration mouth mask in the claim 1 to 3, it is characterized in that, filter (1) also comprises precipitation net (14) and sedimentation basin (15), precipitation net (14) is positioned at the bottom of filter (1), this precipitation net (14) is made of a plurality of folded sheets that are arranged in parallel, and sedimentation basin (15) is positioned at precipitation net (14) bottom.

5. as each described water filtration mouth mask in the claim 1 to 3, it is characterized in that, filter (1) also comprises baffle device for water (16), baffle device for water (16) comprises first water fender (161) and second water fender (162), first water fender (161) be positioned at shell (11) around and be positioned at liquid level top, second water fender (162) is positioned at the centre position of shell (11) and is positioned at the liquid level top, thus, can block splashing of filtered fluid, avoid filtered fluid to fall into the inlet of air-out apparatus.

6. as each described water filtration mouth mask in the claim 1 to 3, it is characterized in that, filter (1) also comprises anti-air impact baffle plate (17), should anti-air impact baffle plate (17) be positioned at the port that air inlet pipe is inserted an end of filtered fluid, thereby the impact when having avoided the air of air inlet pipe to enter filtered fluid influences the sedimentation basin sedimentation effect.

7. as each described water filtration mouth mask in the claim 1 to 3, it is characterized in that, filter (1) also comprises suspension arrangement (18), and this suspension arrangement (18) is positioned at the top of shell (1), and this suspension arrangement (18) upper end has the through hole of suspension of being beneficial to and location.

8. as each described water filtration mouth mask in the claim 1 to 3, it is characterized in that having in the position that airbag (22) is connected with air inlet pipe (23) and avoid filtering gas to flow back to the breather check valve (28) of filter.

9. water filtration mouth mask as claimed in claim 8 is characterized in that, airbag (22) has two, lays respectively at the both sides of reciprocating drive unit (25), and the two ends of reciprocating drive unit (25) connect the support reduction plate (26) in two airbags (22) respectively.

10. water filtration mouth mask as claimed in claim 8 is characterized in that, breathing bag also comprises the sealant (27) with reciprocating drive unit (25) and airbag (22) isolation.

11. water filtration mouth mask as claimed in claim 10 is characterized in that, sealing layer (27) is the corrugated hose of being made by elastic caoutchouc, plastic foil or moccasin that can stretch along with reciprocating drive unit (25).

12. water filtration mouth mask as claimed in claim 1, it is characterized in that, this reciprocating drive unit (25) comprises tooth bar (251), left driving wheel (252) and right driving wheel (253), left driving wheel (252) comprises first driven gear (2521) and the first half tooth driving gears (2522), right driving wheel (253) comprises second driven gear (2531) and the second half tooth driving gears (2532), two driven gears are conventional full-depth tooth gear and are driven by the driven by motor driving wheel, two and half tooth driving gears are installed thus according to equidirectional contacted tooth bar (251) by half different tooth driving gears in different.

13. water filtration mouth mask as claimed in claim 12 is characterized in that, two side positions at tooth bar (251) middle part have a plurality of with tooth bar (251) motion the fixed gear (254) of servo-actuated.

14. water filtration mouth mask as claimed in claim 12, it is characterized in that, also comprise semicircle change-over switch (2533) on the second half tooth driving gears (2532) of right driving wheel (253), airbag (22) is communicated with escape pipe (24) by this semicircle change-over switch (2533).

15. water filtration mouth mask as claimed in claim 12 is characterized in that, also comprises the semicircle change-over switch on the first half tooth driving gears (2522) of left driving wheel (252), airbag (22) is communicated with escape pipe (24) by this semicircle change-over switch.

16., it is characterized in that motor is opened control by the switch that is installed on the housing as each described water filtration mouth mask in the claim 12 to 15.

17., it is characterized in that having deceleration device between motor and the driving wheel as each described water filtration mouth mask in the claim 12 to 15.