CN203075004U

CN203075004U - Simple face mask

Info

Publication number: CN203075004U
Application number: CN 201220651709
Authority: CN
Inventors: 彭永华
Original assignee: Bei Bei Safety Co ltd
Current assignee: Bei Bei Safety Co ltd
Priority date: 2012-01-19
Filing date: 2012-11-30
Publication date: 2013-07-24
Anticipated expiration: 2022-11-30
Also published as: TWM437714U

Abstract

The utility model provides a simple face mask, which comprises a front frame, a plurality of lugs with through holes and a plurality of through hole holes arranged at two ends of the front frame, a positioning part arranged at the front end adjacent to the through hole holes, and a protruding shaft arranged at the front end of the positioning part; two rear fixing modules arranged at two sides of the lug of the front frame, wherein the rear fixing modules comprise a fixing shaft, a fine adjustment buckle block, a rotary fixing frame provided with a connecting part and a buckle part, and a rotary cap; the mask is arranged at the front end of the front frame, and two sides of the mask are provided with long holes for the protruding shaft of the front frame to penetrate and sleeve; the two front fixing modules are arranged on the inner side and the outer side of the mask and correspondingly penetrate through and are fixed on the convex shaft of the front frame, and each front fixing module comprises a gasket and a fixing cap; an earflap is arranged at the buckling part at the rear end of the rotary fixing frame, and the center of the earflap is provided with a spanning rod which is sleeved in the sleeving hole of the rotary fixing frame. By the structure, the face mask and the front frame can be subjected to multi-section large-angle direct adjustment and front-back displacement outside, the ear muffs and the buckling parts of the rotary fixing frame are easy to disassemble and assemble and are not easy to fall off, the use convenience of the earmuffs is effectively improved, the earmuffs are suitable for various head types, the earmuffs meet the requirements of progress, practicability and users, and gain parts of the earmuffs and the rotary fixing frame are provided.

Description

Simple mask

Technical field

The relevant a kind of face shield of this utility model, refer in particular to a kind of preceding frame that is connected with face shield that face shield can be reached and do directly adjustment and the front and back displacement of multisection type wide-angle, and the button portion disassembly and assembly of earmuff and rotary fixing frame are easy and the simple mask of difficult drop-off and suitable various head dummys in the outside.

Background technology

Face shield the time can be avoided foreign body for work and directly injure the usefulness of eyes as the protection eyes, current no matter factory, outdoor gardening, laboratory etc. are indispensable necessary, and its structure of face shield of existing articles for use is fixed, be fixed in head by an elastic strands, because its structural design is bad, except can't secure in head, its top is without any support, so face shield is easy to glide because of weight relationships, this face shield can't start and various angle adjustment again, more causes the inconvenience in the use; Though someone invents to constructing and goes up to preventing the injury of noise to ear, and be provided with earmuff in face shield, yet the earmuff of existing articles for use mainly is fixed on the headgear of fixed dimension, utilization has U-shaped shape trepanning and is located at the buckling plate of its trepanning one side, the fastening that bar wears U-shaped shape trepanning and buckling plate of striding by earmuff fixes, because it has the U-shaped shape trepanning of the long arm of force existing articles for use, therefore can't bear earmuff and stride the weight of bar, earmuff comes off in U-shaped shape trepanning easily, the bar of striding of earmuff is assembled and must be worn to afterbody by head at fastening again, and the side buckling plate is made accurate clip seal, quite time-consuming taking a lot of work in operation and fastening and the dismounting, presented its fixed headgear of articles for use again, except can't being fit to various capitiform user uses, many and the cost increase of its materials, and this is located at face shield on the headgear and also only can does to lift on low-angle, can't satisfy the needs of user, provide all parts of adjusting face shield to be located at headgear inside again, user can't be by the direct disassembly and assembly in outside, these all disappearances that manifest, usually cause work can't carry out smoothly and dangerous the generation, this is to be dealer and consumer's utmost point desire breakthrough part, it serves as to consider to carry out utility model that the inventor puts with this, frame is made the multisection type wide-angle and direct the adjustment and the front and back displacement in the outside before becoming one face shield can be reached eventually, and the button portion disassembly and assembly of earmuff and rotary fixing frame are easy and difficult drop-off, effectively promote the simple mask of its ease of use and suitable various head dummys.

Summary of the invention

For solving the insufficient place of above-mentioned prior art, this utility model main purpose is providing a kind of simple mask, and its face shield can be done the adjustment and the front and back displacement of multisection type wide-angle, in the hope of overcoming difficulty of the prior art.

Secondary objective of the present utility model is to provide a kind of simple mask, the easy and difficult drop-off of the button portion disassembly and assembly of its earmuff and rotary fixing frame.

The another purpose of this utility model is to provide a kind of simple mask, and it provides the face shield adjustment and be located at outside forward and backward stuck-module assembly and can be provided in outside directly adjustment.

The problem that this utility model institute desire solves, because existing articles for use face mask structure is fixed, be fixed in head by an elastic strands, because of its top without any supporting and can't be firmly outside head, face shield is easy to glide because of weight relationships, this face shield can't start and various angle adjustment again, more causes the inconvenience in the use; Though someone invents in face shield and is provided with earmuff, yet its earmuff mainly is fixed on the headgear, utilization has U-shaped shape trepanning and is located at the buckling plate of its trepanning one side, the fastening that bar wears U-shaped shape trepanning and buckling plate of striding by earmuff fixes, because it has the U-shaped shape trepanning of the long arm of force existing articles for use, therefore can't bear earmuff and stride the weight of bar, earmuff comes off in U-shaped shape trepanning easily, earmuff strides bar and must be worn to afterbody and utilized the side buckling plate to do accurate clip sealing by head fastening assembling again, quite time-consuming taking a lot of work in operation and fastening and the dismounting, its fixed headgear can't be fit to more than various capitiform user uses and the materials and the cost increase again, and this be located at face shield on the headgear also only can do little degree on lift, can't satisfy the needs of user, provide all parts of adjustment face shield to be located at headgear inside in addition, user can't be by the direct disassembly and assembly in outside, and these all disappearances that manifest usually cause work can't carry out smoothly and dangerous the generation.

For reaching above-mentioned purpose, this utility model provides a kind of simple mask, and it comprises:

Frame before one be provided with the lug of tool one open-work and most eyelets in its two ends, and the front end of adjacent this eyelet is provided with a location division, is provided with a protruding axle in addition in the location division front end again;

Two back stuck-modules, the lug both sides of frame before being located at, this back stuck-module comprises a fixed axis, fine setting button piece, a rotary fixing frame and a turncap; Wherein, the open-work of its lug of frame before fixed axis wears from inside to outside and is located at, and fine setting button piece is in the outside of preceding its lug of frame, and its central authorities are provided with the fixing hole that wears for fixed axis, be provided with circular groove around the fixing hole, and in circular groove, establish a stops, the front end of this fine setting button piece is provided with corresponding preceding having of its lug front end location division of frame and buckles protruding extension ear again, rotary fixing frame is located at the outside of fine setting button piece, this rotary fixing frame is provided with the open-work that wears for fixed axis in its central authorities, its inboard is provided with the bulge loop of the tool recess of corresponding fine setting button its circular groove of piece and stops, as for, rotary fixing frame its rear end then is provided with a junction and is provided with a button portion in connecting portion, this button portion is provided with the spanner of the bending that extends back in the top, two ends, this spanner below are extended and are provided with the extension edge that forms a breach to central authorities, extend between edge and spanner and form a trepanning, and a turncap is located at and is changeed outside the fixed mount side and fix with fixed axis;

One face shield, the front end of frame before being located at, its both sides are provided with the slotted hole that wears for its protruding axle of preceding frame;

Stuck-modules before two, be located at the outside in the face shield and corresponding wear be fixed in before the protruding axle of frame, this preceding stuck-module includes a pad and a locking cap, its protruding axle of frame before this pad is sheathed on, and locking cap is located at its slotted hole outside of face shield and fixing with the protruding axle of preceding frame;

One earmuff is located at the button portion of rotary fixing frame its rear end, and earmuff central authorities are provided with one and stride bar, and this is striden bar and is sheathed in its trepanning of rotary fixing frame.

Preferably, an open-work of its preceding frame of this utility model open-work that is adjacent to most eyelets or preceding frame is located in most eyelets eyelet wherein or an open-work of preceding frame is located between most eyelets two eyelets wherein.

Preferably, the location division of its preceding frame of this utility model is most open-works, an arcuation hole or connects between most open-works and be provided with the arc groove.

Preferably, this utility model thereafter the fixed axis of stuck-module be a screw.

Preferably, its button portion that is located at its connecting portion of rotary fixing frame of this utility model is one-body molded.

Preferably, its button portion that is located at its connecting portion of rotary fixing frame of this utility model is a separate type.

Further, its connecting portion of this utility model is provided with interlocking portion.

Further, the button portion that the rear end connecting portion of its rotary fixing frame of this utility model is set, in its central authorities be provided with wear for rotary fixing frame its connecting portion and in have the perforation of interlocking portion, and be provided with thereon with boring a hole and communicate for the connecting portion embedding hole that set interlocking portion is embedded on it.

Further, its connecting portion of being located at the rotary fixing frame rear end of this utility model is strip and is provided with the elastic bolster guide of backstop in button portion in tail end.

Preferably, the interlocking portion of button of the present utility model portion is protruding grain or depression.

Preferably, the interlocking portion of connecting portion of the present utility model is that depression or protruding grain or tooth are protruding.

And structure thus, this utility model can make face shield and preceding frame make the multisection type wide-angle and directly adjustment and the front and back displacement in the outside, and the button portion disassembly and assembly of earmuff and rotary fixing frame are easy and difficult drop-off, effectively promote its ease of use and are suitable for various head dummys.

Description of drawings

Fig. 1: be three-dimensional exploded view of the present utility model.

A Figure 1A: be another enforcement illustration of frame before this utility model.

Figure 1B: be the another enforcement illustration of frame before this utility model.

Fig. 2: be three-dimensional combination figure of the present utility model.

Fig. 3: be combination section of the present utility model.

Fig. 4: be another embodiment three-dimensional exploded view of location division of frame before this utility model.

Fig. 5: be the combination section of another embodiment of location division of frame before this utility model.

Fig. 6: be the three-dimensional exploded view of the another embodiment in location division of frame before this utility model.

Fig. 7: be the combination section of the another embodiment in location division of frame before this utility model.

Fig. 8: it strides bar action diagram () for the button portion of its rotary fixing frame rear end of this utility model and earmuff.

Fig. 9: it strides bar action diagram (two) for the button portion of its rotary fixing frame rear end of this utility model and earmuff.

Figure 10: the enforcement illustration of raising face shield for this utility model.

Figure 11: the enforcement illustration of raising preceding frame for this utility model.

Figure 12: be another embodiment three-dimensional exploded view of its button portion of this utility model.

Figure 13: be another embodiment combination stereogram of its button portion of this utility model.

Figure 14: be the another embodiment three-dimensional exploded view of its button portion of this utility model.

Figure 15: be the another embodiment combination stereogram of its button portion of this utility model.

Description of reference numerals

1 ... preceding frame

10 ... lug

11 ... open-work

110 ... eyelet

12 ... the location division

120 ... open-work

121 ... the arcuation hole

122 ... the arc groove

100 ... protruding axle

2 ... back stuck-module

21 ... fixed axis

22 ... fine setting button piece

220 ... fixing hole

221 ... circular groove

222 ... stops

223 ... extend ear

224 ... detain protruding

23 ... rotary fixing frame

231 ... open-work

232 ... bulge loop

233 ... recess

234 ... connecting portion

2340 ... interlocking portion

2341 ... elastic bolster guide

24 ... button portion

241 ... spanner

242 ... extend edge

243 ... breach

244 ... trepanning

245 ... perforation

246 ... interlocking portion

247 ... the embedding hole

25 ... turncap

3 ... face shield

31 ... slotted hole

4 ... preceding stuck-module

41 ... pad

42 ... locking cap

5 ... earmuff

51 ... stride bar

The specific embodiment

The effect of understanding utility model feature of the present utility model, content and advantage and reaching for the expensive auditor of profit, now with this utility model conjunction with figs., and be described in detail as follows with the expression-form of embodiment, and it is employed graphic in literary composition, its purport only is the usefulness of signal and aid illustration book, may not be true ratio after this utility model enforcement and precisely configuration, so should be with regard to the claim of appended graphic ratio and configuration relation limitation this utility model in reality enforcement, close chat earlier bright.

See also Fig. 1, Figure 1A, Figure 1B, Fig. 2, shown in Figure 3, for another of frame before three-dimensional exploded view of the present utility model, this utility model implemented another enforcement illustration, three-dimensional combination figure of the present utility model, the combination section of frame before illustration, this utility model, simple mask of the present utility model stuck-modules 4, earmuff 5 before frame 1, two back stuck-modules 2, the face shield 3, two before one preferably includes one among the embodiment.

Frame 1 before aforesaid one; in the curved shape of its shape of present embodiment; but do not limit this utility model with this; it also can be the various different shapes that can cooperate with user head leading edge; all belong to protection domain of the present utility model; preceding again frame 1 two ends are provided with the lug 10 of tool one open-work 11 and most eyelet 110; and an open-work 11 of preceding frame 1 is adjacent to most eyelet 110(as shown in Figure 1) or an open-work 11 of preceding frame 1 open-work 11 of being located at (shown in Figure 1A) in most eyelets 110 eyelet 110 wherein or preceding frame 1 be located between most eyelets 110 two eyelets 110 wherein (shown in Figure 1B); and the front end of adjacent this eyelet 110 is provided with a location division 12; 12 front ends are provided with a protruding axle 100 in addition in the location division again; and this location division 12 in present embodiment be most open-work 120(as shown in Figure 1); but do not limit this utility model with this, it also can be an arcuation hole 121(such as a Fig. 4; the three-dimensional exploded view of another embodiment of location division of frame before this utility model shown in Figure 5; combination section for the another embodiment in location division of frame before this utility model) or can be in 120 perforations of most open-works and be provided with arc groove 122(such as Fig. 6; the three-dimensional exploded view of the another embodiment in location division of frame before this utility model shown in Figure 7; the combination section of the another embodiment in location division of frame before this utility model).

Aforesaid two back stuck-modules 2, lug 10 both sides of frame 1 before being located at, this back stuck-module 2 comprises a fixed axis 21, a fine setting button piece 22, a rotary fixing frame 23, a turncap 25, wherein, the open-work 11 of frame 1 its lug 10 before fixed axis 21 wears from inside to outside and is located at, this fixed axis 21 can be a screw in present embodiment, but does not limit this utility model with this, it also can be various for fixed various assemblies, all belongs to protection domain of the present utility model; And fine setting button piece 22 is in the outside of preceding frame 1 its lug 10, and its central authorities are provided with the fixing hole 220 that wears for fixed axis 21, be provided with circular groove 221 around the fixing hole 220, and in circular groove 221, be provided with the restriction yawing moment a stops 222, the front end of this fine setting button piece 22 is provided with corresponding preceding having of frame 1 its lug 10 front end location divisions 12 and buckles protruding 224 extension ear 223 again, utilize this two corresponding matching, can make fine setting button piece 22 on the location division 12 of preceding frame 1, do the fixing fine setting of deflection of different directions; Rotary fixing frame 23 is located at the outside of fine setting button piece 22, this rotary fixing frame 23 is provided with the open-work 231 that wears for fixed axis 21 in its central authorities, its inboard is provided with the bulge loop 232 of the tool recess 233 of corresponding fine setting button piece 22 its circular grooves 221 and stops 222, can make this rotary fixing frame 23 borrow bulge loop 232 to make the angle of its deflection spacing thus with stops 222 effects of fine setting button piece 22, and do not cause preceding frame 1 excessively backward, as for, rotary fixing frame 23 its rear end are provided with a junction 234 and are provided with a button portion 24 in connecting portion 234, this button portion 24 is provided with the spanner 241 of the bending that extends back in the top, and be L-shaped in this spanner 241 of present embodiment, do not limit this utility model equally with this, it also can be the various different shapes of conveniently pulling button for hand, all belong to protection domain of the present utility model, these two ends, spanner 241 below are extended and are provided with the extension edge 242 that forms a breach 243 to central authorities again, extend edge 242 and 241 of spanners and also form a trepanning 244; And that the embodiment of (shown in Figure 11 as Fig. 1 to the) should be located at the button portion 24 of rotary fixing frame 23 its connecting portions 234 was one-body molded; (as shown in Figure 12 and Figure 13) another embodiment three-dimensional exploded view of its button portion of this utility model, combination stereogram, the button portion 24 that is located at rotary fixing frame 23 its connecting portions 234 equally is one-body molded; As for, the another embodiment three-dimensional exploded view of this utility model button portion of (as Figure 14, shown in Figure 15), combination stereogram, its button portion 24 that is located at rotary fixing frame 23 its connecting portions 234 is separate type, the set button of the rear end connecting portion 234 of this rotary fixing frame 23 portion 24, its central authorities be provided with for rotary fixing frame 23 its connecting portions 234 wear and in have the perforation 245 of interlocking portion 246, and be provided with thereon with boring a hole and 245 communicate for connecting portion 234 that it goes up the embedding hole 247 that set interlocking portion 2340 is embedded, 246 protruding in interlocking portion or depressions that again should button portion 24; Be separate type as for the button portion 24 that is located at rotary fixing frame 23 its connecting portions 234, for the perforation 245 that makes its energy connecting portion 234 wear button portion 24 acts on it is to be strip, for avoiding the two separation, connecting portion 234 tail ends in strip are provided with the elastic bolster guide 2341 of backstop in button portion 24 in addition, again in order to interact with the corresponding interlocking portions 246 that can be protruding grain or depression in the button portion 24 set perforation 245, also being provided with corresponding interlocking portion 2340 on this connecting portion 234, promptly should interlocking portion 2340 be depression or protruding grain or protruding with the tooth of button portion 24 its embedding holes 247 effects; Be located at rotary fixing frame 23 its outsides as for fine setting button piece 22, its central authorities are provided with the fixing hole 220 that wears for fixed axis 21, this fine setting button piece 22 then is provided with the circular groove 221 of tool stops 222 with respect to the bulge loop 232 of rotary fixing frame 23 tool recesses 233, can make this rotary fixing frame 23 by stops 222 effects of bulge loop 232 thus with fine setting button piece 22, make the angle of its deflection spacing, and do not cause preceding frame 1 excessively backward, the inboard of frame 1 before this fine setting button piece 22 is located at again, its front end be provided with one corresponding before frame 1 be positioned at having of lug 10 front end location divisions 12 and buckle protruding 224 extensions ear 223, one turncaps 25 and be located at the outside of preceding frame 1 its lug 10 and fix with fixed axis 21; One turncap 25 is located at the outside of changeing fixed mount 23 and fixing with fixed axis 21, and before fine setting button piece 22 is fitted in lug 10 outsides of frame 1 and this extensions ear 223 buckle protruding 224 be embedded at before in the location division 12 of frame 1 and rotary fixing frame 23 sheathed fine settings buckle in the piece 22 and mutual packings.

An aforesaid face shield 3, the front end of frame 1 before being located at, its both sides are provided with for preceding frame 1 its protruding axle 100 slotted holes that wear 31.Stuck-module 4 before aforesaid two, be located at the outside and the corresponding protruding axle 100 that is fixed in preceding frame 1 that wears in the face shield 3, should include a pad 41 and a locking cap 42 by preceding stuck-module 4, its protruding axle 100 of frame 1 before this pad 41 is sheathed on, and locking cap 42 be located at face shield 3 its slotted hole 31 outsides and with the protruding axle 100 fixedly packings of preceding frame 1.

An aforesaid earmuff 5 is located at the button portion 24 of rotary fixing frame 23 its rear end, and earmuff 5 central authorities are provided with one and stride bar 51, and this is striden bar 51 and is sheathed in the trepanning 244 of rotary fixing frame 23 its rear end set button portion 24.

Please consult Fig. 8, shown in Figure 9, it strides bar action diagram () for the button portion of its rotary fixing frame rear end of this utility model and earmuff, (2), its desire of this utility model is done the time spent with the button portion 24 of striding bar 51 and rotary fixing frame 23 rear ends of earmuff 5, earlier the spanner 241 of its button portion 24 is outwards pulled, the extension edge 242 of this below promptly can be dug downwards and its central set breach 243 is become big (as shown in Figure 8) at this moment, this moment can be with earmuff 5 its stride bar 51 and insert in the trepanning 244 of button portion 24, and then the strength of spanner 241 discharged and make its recovery be as shown in Figure 1 situation, the striding bar 51 and promptly can be had two of breach 243 and extend edge 242 average force and be held in the trepanning 244 of earmuff 5 this moment by 24 its central authorities of button portion, because mean forced before and after it, therefore, it strides earmuff 5 bar 51 and can firmly be fixed, simultaneously the connecting portion 234 of rotary fixing frame 23 its rear end also can the button portion 24 of separate type on it set perforation 245 be embedded location and displacement adjustment before and after doing.

Please consult Figure 10, shown in Figure 11, raise the enforcement illustration of face shield for this utility model, the enforcement illustration of frame before this utility model is raised, this utility model is fixed itself and protruding axle 100 packings of being located at preceding frame 1 owing to face shield 3 is subjected to preceding stuck-module 4, therefore, face shield 5 can be done outer the lifting (as shown in figure 10) of different angles, the lug 10 of its preceding frame 1 of this utility model is provided with the preceding frame 1 of fixed visors 5 is made the back stuck-module 2 that different angles are lifted outward again, therefore, it can make preceding frame 1 outer the lifting (as shown in figure 11) of different angles once more, and this is located at the inboard set button protruding 224 of the extension ear 223 of rotary fixing frame 23 front ends and also can finely tunes in addition with set location division 12 on preceding frame 1 its lug 10 simultaneously.

And structure thus, frame 1 was made the multisection type wide-angle and directly adjustment and the front and back displacement in the outside before this utility model can make face shield 3, and button portion 24 disassembly and assembly of earmuff 5 and rotary fixing frame 23 are easy and difficult drop-off, effectively promote its ease of use and be suitable for various head dummys, meet the required of progressive, practical and user, it serves to show its gain part.

Take a broad view of as can be known above-mentioned, this utility model is being broken through under the prior art configurations, has reached the effect that institute's desire is promoted really, and also non-be familiar with this technical staff institute easily full of beard reach, moreover, not open before this utility model application, the progressive of its tool, practicality show the application condition that has met utility model patent, so propose utility model application in accordance with the law, earnestly ask your office and check and approve this part utility application case, to encourage creation, indebted forever.

In a word; the above embodiments only are technological thought of the present utility model and characteristics; its purpose makes one of ordinary skill in the art can understand content of the present utility model and is implementing according to this; but can not limit scope of patent protection of the present utility model with this; be that all equalizations of doing according to the spirit that this utility model disclosed change or modification, all should belong to this utility model scope of patent protection.

Claims

1. simple mask, it comprises:

Two back stuck-modules, the lug both sides of frame before being located at, this back stuck-module comprises a fixed axis, fine setting button piece, a rotary fixing frame and a turncap; Wherein, the open-work of its lug of frame before fixed axis wears from inside to outside and is located at, and fine setting button piece is in the outside of preceding its lug of frame, and its central authorities are provided with the fixing hole that wears for fixed axis, be provided with circular groove around the fixing hole, and in circular groove, establish a stops, the front end of this fine setting button piece is provided with corresponding preceding having of its lug front end location division of frame and buckles protruding extension ear again, rotary fixing frame is located at the outside of fine setting button piece, this rotary fixing frame is provided with the open-work that wears for fixed axis in its central authorities, its inboard is provided with the bulge loop of the tool recess of corresponding fine setting button its circular groove of piece and stops, as for, rotary fixing frame its rear end then is provided with a junction and is provided with a button portion in connecting portion, this button portion is provided with the spanner of the bending that extends back in the top, two ends, this spanner below are extended and are provided with the extension edge that forms a breach to central authorities, extend between edge and spanner and form a trepanning, and a turncap is located at the outside of changeing fixed mount and is fixed with fixed axis;

2. simple mask as claimed in claim 1, it is characterized in that: wherein, the open-work that an open-work of preceding frame is adjacent to most eyelets or preceding frame is located in most eyelets eyelet wherein or an open-work of preceding frame is located between most eyelets two eyelets wherein.

3. simple mask as claimed in claim 1 is characterized in that: wherein, the location division of preceding frame is most open-works or an arcuation hole or connects between most open-works and be provided with the arc groove.

4. simple mask as claimed in claim 1 is characterized in that: wherein, the fixed axis of back stuck-module is a screw.

5. as claim 1 or 2 or 3 or 4 described simple mask, it is characterized in that: wherein, the button portion that is located at its connecting portion of rotary fixing frame is one-body molded.

6. as claim 1 or 2 or 3 or 4 described simple mask, it is characterized in that: wherein, the button portion that is located at its connecting portion of rotary fixing frame is a separate type, and this connecting portion is provided with interlocking portion.

7. simple mask as claimed in claim 6, it is characterized in that: the button portion that the rear end connecting portion of its rotary fixing frame is set, in its central authorities be provided with wear for rotary fixing frame its connecting portion and in have the perforation of interlocking portion, and be provided with thereon with boring a hole and communicate for the connecting portion embedding hole that set interlocking portion is embedded on it.

8. simple mask as claimed in claim 7 is characterized in that: its connecting portion of being located at the rotary fixing frame rear end is strip and is provided with the elastic bolster guide of backstop in button portion in tail end.

9. simple mask as claimed in claim 8 is characterized in that: wherein, the interlocking portion of button portion is protruding grain or depression.

10. simple mask as claimed in claim 9 is characterized in that: wherein, the interlocking portion of connecting portion is that recessed or protruding grain or tooth are protruding.